Update README.md

- Pivot support implementation 
- Rename queries into inquiries
- Rename editor into workspace
- Change result set format
- New JSON format for inquiries
- Redesign panels

.github/workflows/config.grenrc.js

@@ -0,0 +1,17 @@
+module.exports = {
+  dataSource: 'milestones',
+  ignoreIssuesWith: [
+    'wontfix',
+    'duplicate'
+  ],
+  milestoneMatch: 'v{{tag_name}}',
+  template: {
+    issue: '- {{name}} [{{text}}]({{url}})',
+    changelogTitle: "",
+    release: "{{body}}",
+  },
+  groupBy: {
+    'Enhancements': ["enhancement", "internal"],
+    'Bug fixes': ["bug"]
+  }
+}

.github/workflows/main.yml

@@ -15,6 +15,10 @@ jobs:
       uses: actions/setup-node@v1
       with:
         node-version: 10.x
+
+    - name: Update npm
+      run: npm install -g npm@7
+
     - name: npm install and build
       run: |
         npm install
@@ -25,16 +29,26 @@ jobs:
         cd dist
         zip -9 -r  dist.zip . -x "js/*.map"
 
+    - name: Create Release Notes
+      run: |
+        npm install github-release-notes@0.16.0 -g
+        gren changelog --generate  --config="/.github/workflows/config.grenrc.js"
+      env:
+        GREN_GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
     - name: Create release
       uses: ncipollo/release-action@v1
       with:
         artifacts: "dist/dist.zip"
         token: ${{ secrets.GITHUB_TOKEN }}
+        bodyFile: "CHANGELOG.md"
 
     - name: Deploy 🚀
-      uses: JamesIves/github-pages-deploy-action@3.6.2
+      uses: JamesIves/github-pages-deploy-action@4.1.1
       with:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        BRANCH: build # The branch the action should deploy to.
-        FOLDER: dist/ # The folder the action should deploy.
-        CLEAN: false # Automatically remove deleted files from the deploy branch
+        token: ${{ secrets.GITHUB_TOKEN }}
+        branch: build # The branch the action should deploy to.
+        folder: dist/ # The folder the action should deploy.
+        clean: true # Automatically remove deleted files from the deploy branch
+        clean-exclude: .nojekyll
+

.github/workflows/test.yml

@@ -4,6 +4,9 @@ on:
   push:
     branches:
     - 'master'
+  pull_request:
+    branches:
+    - 'master'
 
 jobs:
   test:
@@ -15,16 +18,20 @@ jobs:
       uses: actions/setup-node@v1
       with:
         node-version: 10.x
-    - name: Install chromium
-      run:  
-        sudo DEBIAN_FRONTEND=noninteractive apt-get update && 
-        sudo DEBIAN_FRONTEND=noninteractive apt-get install -y chromium-browser
+    - name: Install browsers
+      run: |
+        export DEBIAN_FRONTEND=noninteractive
+        sudo apt-get update
+        sudo apt-get install -y chromium-browser firefox
+
+    - name: Update npm
+      run: npm install -g npm@7
 
     - name: Install the project
       run: npm install
 
     - name: Run lint
-      run: npm run lint
+      run: npm run lint -- --no-fix
 
     - name: Run karma tests
       run: npm run test

README.md

@@ -4,167 +4,39 @@
 
 # sqliteviz
 
-Sqliteviz is a single-page application for fully client-side visualisation of SQLite databases or CSV.
+Sqliteviz is a single-page offline-first PWA for fully client-side visualisation of SQLite databases or CSV files.
 
-## Get started
+With sqliteviz you can:
+- run SQL queries against a SQLite database and create [Plotly][11] charts and pivot tables based on the result sets
+- import a CSV file into a SQLite database and visualize imported data
+- manage inquiries and run them against different databases
+- import/export inquiries to/from a JSON file
+- export a modified SQLite database
+- use it offline from your OS application menu like any other desktop app
 
-The latest release of sqliteviz is running on [Github pages][6]. The simplest way to start is to use sqliteviz there.
+https://user-images.githubusercontent.com/24638357/128249848-f8fab0f5-9add-46e0-a9c1-dd5085a8623e.mp4
 
-### Choose a databese or CSV file
+## Quickstart
+The latest release of sqliteviz is deployed on GitHub Pages at [lana-k.github.io/sqliteviz][6].
 
-You can choose a database or CSV file right on the welcom page (fig. 1). The supported file extentions: `.csv`, `.db`,`.sqlite` and `.sqlite3`.
-
-<p align="center">
-   <img class="figure" src="src/assets/images/Screenshot_welcome.png" width="400"/>
-</p>
-
-<p align="center">
-  <sub>
-    Fig. 1: Welcome page
-  </sub>
-</p>
-
-If you choose a CSV file it will be parsed. Then sqliteviz creates a new database with data from the CSV in `csv_import` table. You can change parsing settings in the dialog which is shown automatically if you choose a CSV file (fig. 2).
-
-<p align="center">
-   <img class="figure" src="src/assets/images/Screenshot_csv.png" width="650"/>
-</p>
-
-<p align="center">
-  <sub>
-    Fig. 2: Import CSV dialog
-  </sub>
-</p>
-
-Choosing a database or CSV file is not a mandatory step. You can skip it and manipulate queries in sqliteviz without a database. Choose a database or CSV later in the left panel of the `Editor` when it's time to run a query (fig. 3).
-
-<p align="center">
-   <img class="figure" src="src/assets/images/Screenshot_editor.png" width="650"/>
-</p>
-
-<p align="center">
-  <sub>
-    Fig. 3: Editor (neither database nor CSV is chosen) 
-  </sub>
-</p>
-
-After chosing a database or CSV you can browse tables, columns and their types in the left panel of the `Editor` (fig. 4).
-
-<p align="center">
-   <img class="figure" src="src/assets/images/Screenshot_editor_with_db.png" width="650"/>
-</p>
-
-<p align="center">
-  <sub>
-    Fig. 4: Editor (database is chosen)
-  </sub>
-</p>
-
-### Create a query
-
-#### Open a new tab
-
-Press `Create` button in the top toolbar or use `Ctrl+b`(`Cmd+b` for MacOS) keyboard shortcut to open a new tab for a query. The tab consists of two parts: a query text editor on the top and a result panel on the bottom.
-
-In the query text editor part you can specify a `SELECT` statement for getting data.
-
-The result panel has two modes: table view (fig. 4, fig. 5) and chart view (fig. 3). In the table view you can see the result of query running (fig. 5). In the chart view there is a chart editor component which allows to build a visialization from the result set.
-
-#### Run a query
-
-Press `Run` button in the top toolbar or use `Ctrl+r` or `Ctrl+Enter`(`Cmd+r` or `Cmd+Enter` for MacOS) keyboard shortcut to execute a query in the current opened tab.
-
-> **Note:**  Running is not available if neither a database nor CSV was chosen or a query for the current tab is not specified.
-
-The query result will be displayed in the result panel in table mode (fig. 5).
-
-<p align="center">
-   <img class="figure" src="src/assets/images/Screenshot_result.png" width="650"/>
-</p>
-
-<p align="center">
-  <sub>
-    Fig. 5: Query results
-  </sub>
-</p>
-
-#### Create a chart
-
-After running a query you can switch result panel to the chart mode and create a chart with a `react-chart-editor` component. The same component with some additional features is used in Plotly Chart Studio. Explore its [documentation][7] to learn how to build charts with `react-chart-editor`.
-
-### Save a query
-
-Press `Save` button in the top toolbar or use `Ctrl+s`(`Cmd+s` for MacOS) keyboard shortcut to save a query in the current opened tab to local storage of your browser.
-
-After that the query will be in the list on `My queries` page.
-
-> **Note:**  Only the text of the query and chart settings will be saved. The result of the query execution won't be saved.
-
-## Working with saved queries
-
-You can find all queries that you saved in `My queries` (fig. 6).
-
-<p align="center">
-   <img class="figure" src="src/assets/images/Screenshot_my_queries.png" width="600"/>
-</p>
-
-<p align="center">
-  <sub>
-    Fig. 6: My queries
-  </sub>
-</p>
-
-To manipulate one query hover the cursor over the row with the query and choose the action:
-
-* <img src="src/assets/images/rename.svg"/> - rename a query
-* <img src="src/assets/images/copy.svg"/> - duplicate a query
-* <img src="src/assets/images/file-export.svg"/> - export a query to json file
-* <img src="src/assets/images/delete.svg"/> - delete a query
-
-To edit the text of a query or its chart settings click on the respective row. You will be redirected to `Editor` where the chosen query will be opened in a tab.
-
-> **Note:** After opening a query there will be no chart for it even if you specified it and saved. That is so because there is no data to build the chart. Run the query and all saved chart settings will be applied.
-
-You can also delete or export to file a group of queries. Select queries with checkboxes and press `Delete`/`Export` button above the grid (fig. 7).
-
-<p align="center">
-   <img class="figure" src="src/assets/images/Screenshot_group.png" width="600"/> 
-</p>
-
-
-<p align="center">
-  <sub>
-    Fig. 7: My queries: a group of queries is selected
-   </sub>
-</p>
-
-> **Note:** Some operations are not available for predefined queries (see below).
-
-## Import queries
-
-Click `Import` button on `My queries` page to import queries from JSON file generated by export.
-
-## Predefined queries
-
-If you run sqliteviz on your own server you can specify predefined queries. These queries will be in `My queries` list for all users working with sqliteviz on your server.
-
-To create a list of predefined queries choose queries in `My queries` list and export them to `queries.json`. Then place this file on the server in the same directory as `index.html`.
-
-A user can't edit, rename or delete a predefined query. The rest operations are available.
+## Wiki
+For user documentation, check out sqliteviz [Wiki][7].
 
 ## Motivation
 It's a kind of middleground between [Plotly Falcon][1] and [Redash][2].
 
 ## Components
-It is built on top of [react-chart-editor][3], [sql.js][4] and [Vue-Codemirror][8] in [Vue.js][5]. CSV parsing is performed with [Papa Parse][9].
+It is built on top of [react-chart-editor][3], [PivotTable.js][12], [sql.js][4] and [Vue-Codemirror][8] in [Vue.js][5]. CSV parsing is performed with [Papa Parse][9].
 
 [1]: https://github.com/plotly/falcon
 [2]: https://github.com/getredash/redash
 [3]: https://github.com/plotly/react-chart-editor
 [4]: https://github.com/sql-js/sql.js
 [5]: https://github.com/vuejs/vue
-[6]: https://lana-k.github.io/sqliteviz
-[7]: https://plotly.com/chart-studio-help/tutorials/#basic
+[6]: https://lana-k.github.io/sqliteviz/
+[7]: https://github.com/lana-k/sqliteviz/wiki
 [8]: https://github.com/surmon-china/vue-codemirror#readme
 [9]: https://www.papaparse.com/
-
+[10]: https://github.com/lana-k/sqliteviz/wiki/Predefined-queries
+[11]: https://github.com/plotly/plotly.js
+[12]: https://github.com/nicolaskruchten/pivottable

karma.conf.js

@@ -76,9 +76,17 @@ module.exports = function (config) {
     // enable / disable watching file and executing tests whenever any file changes
     autoWatch: false,
 
+    customLaunchers: {
+      FirefoxHeadlessTouch: {
+        base: 'FirefoxHeadless',
+        prefs: {
+          'dom.w3c_touch_events.enabled': 1
+        }
+      }
+    },
     // start these browsers
     // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
-    browsers: ['ChromiumHeadless'],
+    browsers: ['ChromiumHeadless', 'FirefoxHeadlessTouch'],
 
     // Continuous Integration mode
     // if true, Karma captures browsers, runs the tests and exits
@@ -86,10 +94,13 @@ module.exports = function (config) {
 
     // Concurrency level
     // how many browser should be started simultaneous
-    concurrency: Infinity,
+    concurrency: 2,
 
     client: {
-      captureConsole: true
+      captureConsole: true,
+      mocha: {
+        timeout: 7000
+      }
     },
     browserConsoleLogOptions: {
       terminal: true,
@@ -130,7 +141,7 @@ module.exports = function (config) {
             ]
           },
           {
-            test: /\.worker\.js$/,
+            test: /worker\.js$/,
             loader: 'worker-loader'
           },
           {

lib/sql-js/Dockerfile

@@ -0,0 +1,9 @@
+FROM emscripten/emsdk:2.0.24
+
+WORKDIR /tmp/build
+
+COPY configure.py .
+RUN python3.8 configure.py
+
+COPY build.py .
+RUN python3.8 build.py

lib/sql-js/README.md

@@ -0,0 +1,73 @@
+# SQLite WebAssembly build
+
+This directory contains Docker-based build script, `make.sh`, that builds
+a custom version of [sql.js][1]. It allows sqliteviz to have more recent
+version of SQLite build with a number of useful extensions.
+
+`Makefile` from [sql.js][1] is rewritten as more comprehensible `configure.py`
+ and `build.py` Python scripts that run in `emscripten/emsdk` Docker container.
+
+## Extension
+
+SQLite [amalgamation][2] extensions included:
+
+1. [FTS5][4] -- virtual table module that provides full-text search
+   functionality
+
+SQLite [miscellaneous extensions][3] included:
+
+1. `generate_series` table-valued [series function][6] ([series.c][7])
+2. `transitive_closure` virtual table for
+   [Querying Tree Structures in SQLite][11] ([closure.c][8])
+3. `uuid`, `uuid_str` and `uuid_blob` RFC-4122 UUID functions ([uuid.c][9])
+4. `regexp` (hence `REGEXP` operator) and `regexpi` functions ([regexp.c][10])
+
+SQLite 3rd party extensions included:
+
+1. [pivot_vtab][5] -- a pivot virtual table
+
+To ease the step to have working clone locally, the build is committed into
+the repository.
+
+## Build method
+
+Basically it's extended amalgamation and `SQLITE_EXTRA_INIT` concisely
+described in [this message from SQLite Forum][12]:
+
+> Simply append it to the end of the amalgamation file. The real problem is
+> how you get the init function called. The easiest way (to me at any rate) is
+> to append a function (after the extensions you want to add are all appended)
+> that adds the init function for each extension to the auto extension list
+> for new connections, and set the pre-processor symbol SQLITE_EXTRA_INIT to
+> the name of this function. [...]
+>
+> An example `SQLITE_EXTRA_INIT` function looks like this:
+>
+> ```
+> int core_init(const char* dummy)
+> {
+>    int nErr = 0;
+>
+>    nErr += sqlite3_auto_extension((void*)sqlite3_autobusy_init);
+>    nErr += sqlite3_auto_extension((void*)sqlite3_ipaddress_init);
+>
+>    return nErr ? SQLITE_ERROR : SQLITE_OK;
+> }
+> ```
+>
+> so you would then define `SQLITE_EXTRA_INIT=core_init` when compiling the
+> amalgamation code and the extensions would thereafter be automatically
+> initialized on each connection.
+
+[1]:  https://github.com/sql-js/sql.js
+[2]:  https://sqlite.org/amalgamation.html
+[3]:  https://sqlite.org/src/dir?ci=trunk&name=ext/misc
+[4]:  https://sqlite.org/fts5.html
+[5]:  https://github.com/jakethaw/pivot_vtab
+[6]:  https://sqlite.org/series.html
+[7]:  https://sqlite.org/src/file/ext/misc/series.c
+[8]:  https://sqlite.org/src/file/ext/misc/closure.c
+[9]:  https://sqlite.org/src/file/ext/misc/uuid.c
+[10]: https://sqlite.org/src/file/ext/misc/regexp.c
+[11]: https://charlesleifer.com/blog/querying-tree-structures-in-sqlite-using-python-and-the-transitive-closure-extension/
+[12]: https://sqlite.org/forum/forumpost/6ad7d4f4bebe5e06?raw

lib/sql-js/build.py

@@ -0,0 +1,83 @@
+import logging
+import subprocess
+from pathlib import Path
+
+
+cflags = (
+    '-O2',
+    '-DSQLITE_OMIT_LOAD_EXTENSION',
+    '-DSQLITE_DISABLE_LFS',
+    '-DSQLITE_ENABLE_FTS3',
+    '-DSQLITE_ENABLE_FTS3_PARENTHESIS',
+    '-DSQLITE_ENABLE_FTS5',
+    '-DSQLITE_ENABLE_JSON1',
+    '-DSQLITE_THREADSAFE=0',
+    '-DSQLITE_ENABLE_NORMALIZE',
+    '-DSQLITE_EXTRA_INIT=extra_init',
+    '-DSQLITE_DEFAULT_MEMSTATUS=0',
+    '-DSQLITE_USE_ALLOCA',
+)
+emflags = (
+    # Base
+    '--memory-init-file', '0',
+    '-s', 'RESERVED_FUNCTION_POINTERS=64',
+    '-s', 'ALLOW_TABLE_GROWTH=1',
+    '-s', 'SINGLE_FILE=0',
+    # WASM
+    '-s', 'WASM=1',
+    '-s', 'ALLOW_MEMORY_GROWTH=1',
+    # Optimisation
+    '-s', 'INLINING_LIMIT=50',
+    '-O3',
+    '-flto',
+    '--closure', '1',
+    # sql.js
+    '-s', 'EXPORTED_FUNCTIONS=@src/sqljs/exported_functions.json',
+    '-s', 'EXPORTED_RUNTIME_METHODS=@src/sqljs/exported_runtime_methods.json',
+    '--pre-js', 'src/sqljs/api.js',
+)
+
+
+def build(src: Path, dst: Path):
+    out = Path('out')
+    out.mkdir()
+
+    logging.info('Building LLVM bitcode for sqlite3.c')
+    subprocess.check_call([
+        'emcc',
+        *cflags,
+        '-c', src / 'sqlite3.c',
+        '-o', out / 'sqlite3.bc',
+    ])
+    logging.info('Building LLVM bitcode for extension-functions.c')
+    subprocess.check_call([
+        'emcc',
+        *cflags,
+        '-c', src / 'extension-functions.c',
+        '-o', out / 'extension-functions.bc',
+    ])
+
+    logging.info('Building WASM from bitcode')
+    subprocess.check_call([
+        'emcc',
+        *emflags,
+        out / 'sqlite3.bc',
+        out / 'extension-functions.bc',
+        '-o', out / 'sql-wasm.js',
+    ])
+
+    logging.info('Post-processing build and copying to dist')
+    (out / 'sql-wasm.wasm').rename(dst / 'sql-wasm.wasm')
+    with (dst / 'sql-wasm.js').open('w') as f:
+        f.write((src / 'sqljs' / 'shell-pre.js').read_text())
+        f.write((out / 'sql-wasm.js').read_text())
+        f.write((src / 'sqljs' / 'shell-post.js').read_text())
+
+
+if __name__ == '__main__':
+    logging.basicConfig(level='INFO', format='%(asctime)s %(levelname)s %(name)s %(message)s')
+
+    src = Path('src')
+    dst = Path('dist')
+    dst.mkdir()
+    build(src, dst)

lib/sql-js/configure.py

@@ -0,0 +1,105 @@
+import logging
+import shutil
+import subprocess
+import sys
+import zipfile
+from io import BytesIO
+from pathlib import Path
+from urllib import request
+
+
+amalgamation_url = 'https://sqlite.org/2021/sqlite-amalgamation-3360000.zip'
+
+# Extension-functions
+# ===================
+# It breaks amalgamation if appended as other extension because it redefines
+# several functions, so build it separately. Note that sql.js registers these
+# extension functions by calling ``registerExtensionFunctions`` itself.
+contrib_functions_url = 'https://sqlite.org/contrib/download/extension-functions.c?get=25'
+
+extension_urls = (
+    # Miscellaneous extensions
+    # ========================
+    ('https://sqlite.org/src/raw/c6bd5d24?at=series.c', 'sqlite3_series_init'),
+    ('https://sqlite.org/src/raw/dbfd8543?at=closure.c', 'sqlite3_closure_init'),
+    ('https://sqlite.org/src/raw/5bb2264c?at=uuid.c', 'sqlite3_uuid_init'),
+    ('https://sqlite.org/src/raw/5853b0e5?at=regexp.c', 'sqlite3_regexp_init'),
+    # Third-party extension
+    # =====================
+    ('https://github.com/jakethaw/pivot_vtab/raw/08ab0797/pivot_vtab.c', 'sqlite3_pivotvtab_init'),
+)
+
+sqljs_url = 'https://github.com/sql-js/sql.js/archive/refs/tags/v1.5.0.zip'
+
+
+def _generate_extra_init_c_function(init_function_names):
+    auto_ext_calls = '\n'.join([
+        'nErr += sqlite3_auto_extension((void*){});'.format(init_fn)
+        for init_fn in init_function_names
+    ])
+    return '''
+        int extra_init(const char* dummy)
+        {
+            int nErr = 0;
+            %s
+            return nErr ? SQLITE_ERROR : SQLITE_OK;
+        }
+    ''' % auto_ext_calls
+
+
+def _get_amalgamation(tgt: Path):
+    logging.info('Downloading and extracting SQLite amalgamation %s', amalgamation_url)
+    archive = zipfile.ZipFile(BytesIO(request.urlopen(amalgamation_url).read()))
+    archive_root_dir = zipfile.Path(archive, archive.namelist()[0])
+    for zpath in archive_root_dir.iterdir():
+        with zpath.open() as fr, (tgt / zpath.name).open('wb') as fw:
+            shutil.copyfileobj(fr, fw)
+
+
+def _get_contrib_functions(tgt: Path):
+    request.urlretrieve(contrib_functions_url, tgt / 'extension-functions.c')
+
+
+def _get_extensions(tgt: Path):
+    init_functions = []
+    sqlite3_c = tgt / 'sqlite3.c'
+    with sqlite3_c.open('ab') as f:
+        for url, init_fn in extension_urls:
+            logging.info('Downloading and appending to amalgamation %s', url)
+            with request.urlopen(url) as resp:
+                shutil.copyfileobj(resp, f)
+            init_functions.append(init_fn)
+
+        logging.info('Appending SQLITE_EXTRA_INIT to amalgamation')
+        f.write(_generate_extra_init_c_function(init_functions).encode())
+
+
+def _get_sqljs(tgt: Path):
+    logging.info('Downloading and extracting sql.js %s', sqljs_url)
+    archive = zipfile.ZipFile(BytesIO(request.urlopen(sqljs_url).read()))
+    archive_root_dir = zipfile.Path(archive, archive.namelist()[0])
+    (tgt / 'sqljs').mkdir()
+    for zpath in (archive_root_dir / 'src').iterdir():
+        with zpath.open() as fr, (tgt / 'sqljs' / zpath.name).open('wb') as fw:
+            shutil.copyfileobj(fr, fw)
+
+
+def configure(tgt: Path):
+    _get_amalgamation(tgt)
+    _get_contrib_functions(tgt)
+    _get_extensions(tgt)
+    _get_sqljs(tgt)
+
+    subprocess.check_call(['emcc', '--version'])
+
+
+if __name__ == '__main__':
+    if sys.version_info < (3, 8):
+        print('Python 3.8 or higher is expected', file=sys.stderr)
+        sys.exit(1)
+
+    logging.basicConfig(level='INFO', format='%(asctime)s %(levelname)s %(name)s %(message)s')
+
+    src = Path('src')
+    src.mkdir()
+    configure(src)

lib/sql-js/dist/sql-wasm.js

@@ -0,0 +1,201 @@
+
+// We are modularizing this manually because the current modularize setting in Emscripten has some issues:
+// https://github.com/kripken/emscripten/issues/5820
+// In addition, When you use emcc's modularization, it still expects to export a global object called `Module`,
+// which is able to be used/called before the WASM is loaded.
+// The modularization below exports a promise that loads and resolves to the actual sql.js module.
+// That way, this module can't be used before the WASM is finished loading.
+
+// We are going to define a function that a user will call to start loading initializing our Sql.js library
+// However, that function might be called multiple times, and on subsequent calls, we don't actually want it to instantiate a new instance of the Module
+// Instead, we want to return the previously loaded module
+
+// TODO: Make this not declare a global if used in the browser
+var initSqlJsPromise = undefined;
+
+var initSqlJs = function (moduleConfig) {
+
+    if (initSqlJsPromise){
+      return initSqlJsPromise;
+    }
+    // If we're here, we've never called this function before
+    initSqlJsPromise = new Promise(function (resolveModule, reject) {
+
+        // We are modularizing this manually because the current modularize setting in Emscripten has some issues:
+        // https://github.com/kripken/emscripten/issues/5820
+
+        // The way to affect the loading of emcc compiled modules is to create a variable called `Module` and add
+        // properties to it, like `preRun`, `postRun`, etc
+        // We are using that to get notified when the WASM has finished loading.
+        // Only then will we return our promise
+
+        // If they passed in a moduleConfig object, use that
+        // Otherwise, initialize Module to the empty object
+        var Module = typeof moduleConfig !== 'undefined' ? moduleConfig : {};
+
+        // EMCC only allows for a single onAbort function (not an array of functions)
+        // So if the user defined their own onAbort function, we remember it and call it
+        var originalOnAbortFunction = Module['onAbort'];
+        Module['onAbort'] = function (errorThatCausedAbort) {
+            reject(new Error(errorThatCausedAbort));
+            if (originalOnAbortFunction){
+              originalOnAbortFunction(errorThatCausedAbort);
+            }
+        };
+
+        Module['postRun'] = Module['postRun'] || [];
+        Module['postRun'].push(function () {
+            // When Emscripted calls postRun, this promise resolves with the built Module
+            resolveModule(Module);
+        });
+
+        // There is a section of code in the emcc-generated code below that looks like this:
+        // (Note that this is lowercase `module`)
+        // if (typeof module !== 'undefined') {
+        //     module['exports'] = Module;
+        // }
+        // When that runs, it's going to overwrite our own modularization export efforts in shell-post.js!
+        // The only way to tell emcc not to emit it is to pass the MODULARIZE=1 or MODULARIZE_INSTANCE=1 flags,
+        // but that carries with it additional unnecessary baggage/bugs we don't want either.
+        // So, we have three options:
+        // 1) We undefine `module`
+        // 2) We remember what `module['exports']` was at the beginning of this function and we restore it later
+        // 3) We write a script to remove those lines of code as part of the Make process.
+        //
+        // Since those are the only lines of code that care about module, we will undefine it. It's the most straightforward
+        // of the options, and has the side effect of reducing emcc's efforts to modify the module if its output were to change in the future.
+        // That's a nice side effect since we're handling the modularization efforts ourselves
+        module = undefined;
+
+        // The emcc-generated code and shell-post.js code goes below,
+        // meaning that all of it runs inside of this promise. If anything throws an exception, our promise will abort
+
+var e;e||(e=typeof Module !== 'undefined' ? Module : {});null;
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+
+
+        // The shell-pre.js and emcc-generated code goes above
+        return Module;
+    }); // The end of the promise being returned
+
+  return initSqlJsPromise;
+} // The end of our initSqlJs function
+
+// This bit below is copied almost exactly from what you get when you use the MODULARIZE=1 flag with emcc
+// However, we don't want to use the emcc modularization. See shell-pre.js
+if (typeof exports === 'object' && typeof module === 'object'){
+    module.exports = initSqlJs;
+    // This will allow the module to be used in ES6 or CommonJS
+    module.exports.default = initSqlJs;
+}
+else if (typeof define === 'function' && define['amd']) {
+    define([], function() { return initSqlJs; });
+}
+else if (typeof exports === 'object'){
+    exports["Module"] = initSqlJs;
+}

lib/sql-js/make.sh

@@ -0,0 +1,9 @@
+#!/bin/bash -e
+
+docker build -t sqliteviz/sqljs .
+
+rm -r dist || true
+
+CONTAINER=$(docker create sqliteviz/sqljs)
+docker cp $CONTAINER:/tmp/build/dist .
+docker rm $CONTAINER

lib/sql-js/package.json

@@ -0,0 +1,4 @@
+{
+  "name": "sql.js",
+  "main": "./dist/sql-wasm.js"
+}

package.json

@@ -1,6 +1,6 @@
 {
   "name": "sqliteviz",
-  "version": "1.0.0",
+  "version": "0.15.0",
   "license": "Apache-2.0",
   "private": true,
   "scripts": {
@@ -12,20 +12,24 @@
   "dependencies": {
     "codemirror": "^5.57.0",
     "core-js": "^3.6.5",
-    "debounce": "^1.2.0",
+    "html2canvas": "^1.1.4",
+    "jquery": "^3.6.0",
     "nanoid": "^3.1.12",
-    "papaparse": "^5.3.0",
-    "plotly.js": "^1.57.1",
+    "papaparse": "^5.3.1",
+    "pivottable": "^2.23.0",
+    "plotly.js": "^1.58.4",
     "promise-worker": "^2.0.1",
     "react": "^16.13.1",
-    "react-chart-editor": "^0.42.0",
+    "react-chart-editor": "^0.45.0",
     "react-dom": "^16.13.1",
-    "sql.js": "^1.3.0",
+    "sql.js": "file:./lib/sql-js",
     "sqlite-parser": "^1.0.1",
     "vue": "^2.6.11",
     "vue-codemirror": "^4.0.6",
     "vue-js-modal": "^2.0.0-rc.6",
+    "vue-multiselect": "^2.1.6",
     "vue-router": "^3.2.0",
+    "vue2-teleport": "^1.0.1",
     "vuejs-paginate": "^2.1.0",
     "vuera": "^0.2.7",
     "vuex": "^3.4.0"
@@ -48,9 +52,11 @@
     "eslint-plugin-standard": "^4.0.0",
     "eslint-plugin-vue": "^6.2.2",
     "karma": "^3.1.4",
+    "karma-firefox-launcher": "^2.1.0",
     "karma-webpack": "^4.0.2",
     "vue-cli-plugin-ui-karma": "^0.2.5",
     "vue-template-compiler": "^2.6.11",
+    "workbox-webpack-plugin": "^6.1.5",
     "worker-loader": "^3.0.8"
   }
 }

public/index.html

@@ -5,13 +5,94 @@
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <meta name="viewport" content="width=device-width,initial-scale=1.0">
     <link rel="icon" href="<%= BASE_URL %>favicon.png">
+    <link rel="manifest" href="<%= BASE_URL %>manifest.webmanifest">
     <title><%= htmlWebpackPlugin.options.title %></title>
+    <style>
+      #sqliteviz-loading-wrapper {
+        position: fixed;
+        width: 100%;
+        height: 100%;
+        left: 0;
+        top: 0;
+        background-color: white;
+      }
+    
+      #sqliteviz-loading-text {
+        display: block;
+        position: absolute;
+        top: 50%;
+        left: 50%;
+        transform: translate(-50%, -50%);
+        color: #506784;
+        font-family: sans-serif;
+        font-size: 20px;
+      }
+      
+      #sqliteviz-loading-wrapper svg {
+        display: block;
+        position: absolute;
+        left: 50%;
+        top: 50%;
+        transform: translate(-50%, -50%);
+      }
+
+      #sqliteviz-loading-wrapper circle {
+        position: absolute;
+        left: 0; right: 0; top: 0; bottom: 0;
+        fill: none;
+        stroke-width: 5px;
+        stroke-linecap: round;
+        stroke: #119DFF;
+      }
+
+      #sqliteviz-loading-wrapper circle.bg {
+        stroke: #C8D4E3;
+      }
+
+      #sqliteviz-loading-wrapper circle.front {
+        stroke-dasharray: 402px;
+        animation: sqliteviz-loading 2s linear 0s infinite;
+      }
+
+      @keyframes sqliteviz-loading {
+        0% {
+          stroke-dasharray: 100px 402px;
+          stroke-dashoffset: 0;
+        }
+        50% {
+          stroke-dasharray: 251px;
+          stroke-dashoffset: -251px;
+        }
+        100% {
+          stroke-dasharray: 100px 402px;
+          stroke-dashoffset: -502px;
+        }
+      }
+    </style>
   </head>
   <body>
     <noscript>
       <strong>We're sorry but <%= htmlWebpackPlugin.options.title %> doesn't work properly without JavaScript enabled. Please enable it to continue.</strong>
     </noscript>
-    <div id="app"></div>
+    <div id="app">
+      <div id="sqliteviz-loading-wrapper">
+        <div id="sqliteviz-loading-text">LOADING</div>
+        <svg height="170" width="170" viewBox="0 0 170 170">
+          <circle
+            class="bg"
+            cx="85"
+            cy="85"
+            r="80"
+          />
+          <circle
+            class="front"
+            cx="85"
+            cy="85"
+            r="80"
+          />
+        </svg>
+      </div>
+    </div>
     <!-- built files will be auto injected -->
   </body>
 </html>

public/manifest.webmanifest

@@ -0,0 +1,30 @@
+{
+  "background_color": "white",
+  "description": "Sqliteviz is a single-page application for fully client-side visualisation of SQLite databases or CSV.",
+  "display": "fullscreen",
+  "icons": [
+    {
+      "src": "favicon.png",
+      "sizes": "32x32",
+      "type": "image/png"
+    },
+    {
+      "src": "Logo48x48.png",
+      "sizes": "48x48",
+      "type": "image/png"
+    },
+    {
+      "src": "Logo192x192.png",
+      "sizes": "192x192",
+      "type": "image/png"
+    },
+    {
+      "src": "Logo512x512.png",
+      "sizes": "512x512",
+      "type": "image/png"
+    }
+  ],
+  "name": "sqliteviz",
+  "short_name": "sqliteviz",
+  "start_url": "index.html"
+}

src/App.vue

@@ -60,4 +60,7 @@ button,
 body {
   margin: 0;
 }
+.CodeMirror-hints {
+  z-index: 999 !important;
+}
 </style>

src/assets/images/arrow-hover.svg

@@ -0,0 +1,3 @@
+<svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M4.51581 7.54801C4.95181 7.10201 5.55881 7.06701 6.09181 7.54801L9.99981 11.295L13.9078 7.54801C14.4408 7.06701 15.0488 7.10201 15.4818 7.54801C15.9178 7.99301 15.8898 8.74501 15.4818 9.16301C15.0758 9.58101 10.7868 13.665 10.7868 13.665C10.5698 13.888 10.2848 14 9.99981 14C9.71481 14 9.42981 13.888 9.21081 13.665C9.21081 13.665 4.92381 9.58101 4.51581 9.16301C4.10781 8.74501 4.07981 7.99301 4.51581 7.54801V7.54801Z" fill="#119DFF"/>
+</svg>

src/assets/images/arrow.svg

@@ -0,0 +1,3 @@
+<svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M4.51581 7.54801C4.95181 7.10201 5.55881 7.06701 6.09181 7.54801L9.99981 11.295L13.9078 7.54801C14.4408 7.06701 15.0488 7.10201 15.4818 7.54801C15.9178 7.99301 15.8898 8.74501 15.4818 9.16301C15.0758 9.58101 10.7868 13.665 10.7868 13.665C10.5698 13.888 10.2848 14 9.99981 14C9.71481 14 9.42981 13.888 9.21081 13.665C9.21081 13.665 4.92381 9.58101 4.51581 9.16301C4.10781 8.74501 4.07981 7.99301 4.51581 7.54801V7.54801Z" fill="#C8D4E3"/>
+</svg>

src/assets/images/delete-tag-hover.svg

@@ -0,0 +1,3 @@
+<svg width="14" height="14" viewBox="0 0 14 14" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M10.0436 10.3943C9.7153 10.7226 9.1833 10.7226 8.8557 10.3943L7 8.27329L5.1443 10.3936C4.816 10.7219 4.284 10.7219 3.9564 10.3936C3.6281 10.0653 3.6281 9.53329 3.9564 9.20569L5.887 7.00069L3.9557 4.79429C3.6274 4.46599 3.6274 3.93469 3.9557 3.60639C4.284 3.27809 4.8153 3.27809 5.1436 3.60639L7 5.72809L8.8557 3.60639C9.184 3.27809 9.7153 3.27809 10.0436 3.60639C10.3719 3.93469 10.3719 4.46669 10.0436 4.79429L8.113 7.00069L10.0436 9.20569C10.3719 9.53399 10.3719 10.066 10.0436 10.3943V10.3943Z" fill="#DE350B"/>
+</svg>

src/assets/images/delete-tag.svg

@@ -0,0 +1,3 @@
+<svg width="14" height="14" viewBox="0 0 14 14" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M10.0436 10.3945C9.7153 10.7228 9.1833 10.7228 8.8557 10.3945L7 8.27348L5.1443 10.3938C4.816 10.7221 4.284 10.7221 3.9564 10.3938C3.6281 10.0655 3.6281 9.53348 3.9564 9.20588L5.887 7.00088L3.9557 4.79448C3.6274 4.46618 3.6274 3.93488 3.9557 3.60658C4.284 3.27828 4.8153 3.27828 5.1436 3.60658L7 5.72828L8.8557 3.60658C9.184 3.27828 9.7153 3.27828 10.0436 3.60658C10.3719 3.93488 10.3719 4.46688 10.0436 4.79448L8.113 7.00088L10.0436 9.20588C10.3719 9.53418 10.3719 10.0662 10.0436 10.3945V10.3945Z" fill="#506784"/>
+</svg>

src/assets/images/sort.svg

@@ -0,0 +1,11 @@
+<svg width="6" height="12" viewBox="0 0 6 12" fill="none" xmlns="http://www.w3.org/2000/svg">
+<g clip-path="url(#clip0)">
+<path d="M2.99932 -3.63032e-05C2.75092 -3.63032e-05 2.54932 0.201563 2.54932 0.449964L2.54932 11.55C2.54932 11.7984 2.75092 12 2.99932 12C3.24772 12 3.44932 11.7984 3.44932 11.55L3.44932 0.449964C3.44932 0.201563 3.24772 -3.63032e-05 2.99932 -3.63032e-05Z" fill="#506784"/>
+<path d="M2.99915 1.80492e-05C2.8839 1.80492e-05 2.76865 0.0438534 2.68109 0.132073L0.581055 2.232C0.405273 2.40789 0.405273 2.69287 0.581055 2.86865C0.756946 3.04443 1.04193 3.04443 1.21771 2.86865L2.99969 1.08667L4.78168 2.86865C4.95746 3.04443 5.24255 3.04443 5.41833 2.86865C5.59412 2.69287 5.59412 2.40789 5.41833 2.232L3.3183 0.132073C3.22953 0.0438534 3.11428 1.80492e-05 2.99915 1.80492e-05V1.80492e-05Z" fill="#506784"/>
+</g>
+<defs>
+<clipPath id="clip0">
+<rect width="6" height="12" fill="white" transform="matrix(1 0 0 -1 0 12)"/>
+</clipPath>
+</defs>
+</svg>

src/assets/styles/multiselect.css

@@ -0,0 +1,136 @@
+.sqliteviz-select,
+.sqliteviz-select .multiselect__tags {
+  min-height: 36px;
+  color: var(--color-text-base);
+}
+
+.sqliteviz-select .multiselect__select {
+  height: 34px;
+  min-height: 34px;
+  padding: 6px;
+  width: 32px;
+  height: 32px;
+  margin-top: 1px;
+}
+
+.sqliteviz-select .multiselect__tags {
+  border-radius: var(--border-radius-medium-2);
+  border: 1px solid var(--color-border);
+  padding: 4px 32px 0 6px;
+}
+
+.sqliteviz-select,
+.sqliteviz-select .multiselect__input,
+.sqliteviz-select .multiselect__single,
+.sqliteviz-select .multiselect__placeholder {
+  font-size: 12px;
+}
+
+.sqliteviz-select .multiselect__single,
+.sqliteviz-select .multiselect__placeholder,
+.sqliteviz-select .multiselect__input {
+  padding: 0;
+  margin-bottom: 0;
+  line-height: 28px;
+}
+
+.sqliteviz-select .multiselect__input {
+  width: 0 !important;
+  color: var(--color-text-base);
+}
+
+.sqliteviz-select.multiselect--active .multiselect__input {
+  width: auto !important;
+}
+
+.sqliteviz-select .multiselect__placeholder,
+.sqliteviz-select .multiselect__input::placeholder {
+  color: var(--color-text-light-2);
+}
+
+.sqliteviz-select .multiselect__option.multiselect__option--highlight {
+  background-color: var(--color-bg-light);
+  color: var(--color-text-active);
+}
+
+.sqliteviz-select .multiselect__tag {
+  background-color: var(--color-bg-light-4);
+  border: 1px solid var(--color-border);
+  border-radius: var(--border-radius-small);
+  color: var(--color-text-active);
+  font-size: 11.05px;
+  margin: 2px;
+}
+.sqliteviz-select .multiselect__tag-icon:after {
+  content: url('~@/assets/images/delete-tag.svg');
+  height: 14px;
+  width: 14px;
+}
+
+.sqliteviz-select .multiselect__tag-icon:focus:after,
+.sqliteviz-select .multiselect__tag-icon:hover:after {
+  content: url('~@/assets/images/delete-tag-hover.svg');
+}
+
+.sqliteviz-select .multiselect__tag-icon:focus,
+.sqliteviz-select .multiselect__tag-icon:hover {
+  background-color: var(--color-bg-danger);
+  border-radius: var(--border-radius-small);
+}
+
+.sqliteviz-select .multiselect__option {
+  min-height: 29px;
+  padding: 8px 12px;
+  line-height: 13px;
+}
+
+.sqliteviz-select .multiselect__option:after {
+  line-height: 29px;
+}
+
+.sqliteviz-select .multiselect__content-wrapper {
+  border-radius: var(--border-radius-medium-2);
+  border: 1px solid var(--color-border);
+  box-shadow: var(--shadow-1);
+  top: calc(100% - 1px);
+  max-height: 292px !important;
+}
+
+.sqliteviz-select.multiselect--above .multiselect__content-wrapper {
+  top: unset;
+  bottom: calc(100% - 1px);
+}
+
+.sqliteviz-select .multiselect__select:before {
+  content: url('~@/assets/images/arrow.svg');
+  border: none;
+  top: 0;
+}
+
+.sqliteviz-select.multiselect--active .multiselect__select {
+  transform: none;
+}
+
+.sqliteviz-select:hover .multiselect__tags {
+  border-color: var(--color-border-dark);
+}
+
+.sqliteviz-select .multiselect__select:hover:before {
+  content: url('~@/assets/images/arrow-hover.svg');
+}
+
+.sqliteviz-select.multiselect--active .multiselect__tags {
+  border-radius: var(--border-radius-medium-2);
+}
+
+.sqliteviz-select .multiselect__option  .no-results {
+  color: var(--color-text-light-2);
+}
+
+.sqliteviz-select.multiselect--disabled {
+  opacity: unset;
+}
+
+.sqliteviz-select.multiselect--disabled .multiselect__select {
+  background: unset;
+}

src/assets/styles/tables.css

@@ -1,11 +1,17 @@
 .rounded-bg {
-  padding: 40px 5px 5px;
+  padding: 35px 5px 5px;
   background-color: white;
   border-radius: 5px;
   position: relative;
   border: 1px solid var(--color-border-light);
   box-sizing: border-box;
 }
+
+.straight .rounded-bg {
+  border-radius: 0;
+  border-width: 0 0 1px 0;
+}
+
 .header-container {
   overflow: hidden;
   position: absolute;
@@ -18,6 +24,19 @@
   border-radius: 5px 5px 0 0;
 }
 
+.straight .header-container {
+  border-radius: 0;
+}
+
+.straight {
+  height: 100%;
+}
+
+.straight .rounded-bg {
+  /* 27 - height of table footer */
+  height: calc(100% - 27px);
+}
+
 @supports (-moz-appearance:none) {
   .header-container {
     top: 0;
@@ -32,22 +51,25 @@
 }
 .table-container {
   width: 100%;
+  max-height: 100%;
   overflow: auto;
 }
-table {
+table.sqliteviz-table {
   min-width: 100%;
-  margin-top: -40px;
+  margin-top: -35px;
   border-collapse: collapse;
 }
-thead th, .fixed-header {
+.sqliteviz-table thead th, .fixed-header {
   font-size: 14px;
   font-weight: 600;
   box-sizing: border-box;
   background-color: var(--color-bg-dark);
   color: var(--color-text-light);
   border-right: 1px solid var(--color-border-light);
+  overflow: hidden;
+  text-overflow: ellipsis;
 }
-tbody td {
+.sqliteviz-table tbody td {
   font-size: 13px;
   background-color:white;
   color: var(--color-text-base);
@@ -55,18 +77,20 @@ tbody td {
   border-bottom: 1px solid var(--color-border-light);
   border-right: 1px solid var(--color-border-light);
 }
-td, th, .fixed-header {
-  padding: 12px 24px;
+.sqliteviz-table td,
+.sqliteviz-table th,
+.fixed-header {
+  padding: 8px 24px;
   white-space: nowrap;
 }
 
-tbody tr td:last-child,
-thead tr th:last-child,
+.sqliteviz-table tbody tr td:last-child,
+.sqliteviz-table thead tr th:last-child,
 .header-container div .fixed-header:last-child {
   border-right: none;
 }
 
-td > div.cell-data {
+.sqliteviz-table td > div.cell-data {
   width: -webkit-max-content;
   width: -moz-max-content;
   width: max-content;

src/assets/styles/tooltips.css

@@ -6,7 +6,6 @@
   padding: 0 6px;
   line-height: 19px;;
   position: fixed;
-  z-index: 5;
   height: 19px;
   border-radius: var(--border-radius-medium);
   white-space: nowrap;

src/assets/styles/variables.css

@@ -11,6 +11,8 @@
   --color-blue-dark: #0D76BF;
   --color-blue-dark-2: #2A3F5F;
   --color-red: #EF553B;
+  --color-red-2: #DE350B;
+  --color-red-light: #FFBDAD;
   --color-yellow: #FBEFCB;
 
 
@@ -18,13 +20,16 @@
   --color-bg-light: var(--color-gray-light);
   --color-bg-light-2: var(--color-gray-light-2);
   --color-bg-light-3: var(--color-gray-light-5);
+  --color-bg-light-4: var(--color-gray-light-4);
   --color-bg-dark: var(--color-gray-dark);
   --color-bg-warning: var(--color-yellow);
-  --color-danger: var(--color-red);
+  --color-bg-danger: var(--color-red-light);
+  --color-danger: var(--color-red-2);
   --color-accent: var(--color-blue-medium);
   --color-accent-shade: var(--color-blue-dark);
   --color-border-light: var(--color-gray-light-2);
   --color-border: var(--color-gray-light-3);
+  --color-border-dark: var(--color-gray-medium);
   --color-text-light: var(--color-white);
   --color-text-light-2: var(--color-gray-medium);
   --color-text-base: var(--color-gray-dark);

src/components/Chart.vue

@@ -1,98 +0,0 @@
-<template>
-<div v-show="visible" class="chart-container">
-  <div class="warning chart-warning" v-show="!sqlResult && visible">
-    There is no data to build a chart. Run your sql query and make sure the result is not empty.
-  </div>
-  <PlotlyEditor
-    :data="state.data"
-    :layout="state.layout"
-    :frames="state.frames"
-    :config="{ editable: true, displaylogo: false }"
-    :dataSources="dataSources"
-    :dataSourceOptions="dataSourceOptions"
-    :plotly="plotly"
-    @onUpdate="update"
-    @onRender="go"
-    :useResizeHandler="true"
-    :debug="true"
-    :advancedTraceTypeSelector="true"
-    class="chart"
-    ref="plotlyEditor"
-    :style="{ height: !sqlResult ? 'calc(100% - 40px)' : '100%' }"
-  />
-</div>
-</template>
-
-<script>
-import plotly from 'plotly.js/dist/plotly'
-import 'react-chart-editor/lib/react-chart-editor.min.css'
-
-import PlotlyEditor from 'react-chart-editor'
-import chart from '@/chart'
-import dereference from 'react-chart-editor/lib/lib/dereference'
-
-export default {
-  name: 'Chart',
-  props: ['sqlResult', 'initChart', 'visible'],
-  components: {
-    PlotlyEditor
-  },
-  data () {
-    return {
-      plotly: plotly,
-      state: this.initChart || {
-        data: [],
-        layout: {},
-        frames: []
-      }
-    }
-  },
-  computed: {
-    dataSources () {
-      return chart.getDataSourcesFromSqlResult(this.sqlResult)
-    },
-    dataSourceOptions () {
-      return chart.getOptionsFromDataSources(this.dataSources)
-    }
-  },
-  watch: {
-    dataSources () {
-      // we need to update state.data in order to update the graph
-      // https://github.com/plotly/react-chart-editor/issues/948
-      dereference(this.state.data, this.dataSources)
-    }
-  },
-  methods: {
-    go (data, layout, frames) {
-      // TODO: check changes and enable Save button if needed
-    },
-    update (data, layout, frames) {
-      this.state = { data, layout, frames }
-      this.$emit('update')
-    },
-    getChartStateForSave () {
-      return chart.getChartStateForSave(this.state, this.dataSources)
-    }
-  }
-}
-</script>
-
-<style scoped>
-.chart-container {
-  height: calc(100% - 89px);
-}
-
-.chart-warning {
-  height: 40px;
-  line-height: 40px;
-}
-
-.chart {
-  border-top: 1px solid var(--color-border);
-  min-height: 242px;
-}
-
->>> .editor_controls .sidebar__item:before {
-  width: 0;
-}
-</style>

src/components/CsvImport/DelimiterSelector/index.vue

@@ -40,7 +40,7 @@
 </template>
 
 <script>
-import ascii from '@/ascii'
+import ascii from './ascii'
 import DropDownChevron from '@/components/svg/dropDownChevron'
 import ClearIcon from '@/components/svg/clear'
 

src/components/CsvImport/csv.js

@@ -10,20 +10,26 @@ export default {
   getResult (source) {
     const result = {}
     if (source.meta.fields) {
-      result.columns = source.meta.fields
-      result.values = source.data.map(row => {
-        const resultRow = []
-        result.columns.forEach(col => { resultRow.push(row[col]) })
-        return resultRow
+      source.meta.fields.forEach(col => {
+        result[col.trim()] = source.data.map(row => {
+          let value = row[col]
+          if (value instanceof Date) {
+            value = value.toISOString()
+          }
+          return value
+        })
       })
     } else {
-      result.values = source.data
-      result.columns = []
-      for (let i = 1; i <= source.data[0].length; i++) {
-        result.columns.push(`col${i}`)
+      for (let i = 0; i <= source.data[0].length - 1; i++) {
+        result[`col${i + 1}`] = source.data.map(row => {
+          let value = row[i]
+          if (value instanceof Date) {
+            value = value.toISOString()
+          }
+          return value
+        })
       }
     }
-
     return result
   },
 
@@ -46,7 +52,8 @@ export default {
           const res = {
             data: this.getResult(results),
             delimiter: results.meta.delimiter,
-            hasErrors: false
+            hasErrors: false,
+            rowCount: results.data.length
           }
           res.messages = results.errors.map(msg => {
             msg.type = msg.code === 'UndetectableDelimiter' ? 'info' : 'error'

src/components/CsvImport/index.vue

@@ -0,0 +1,382 @@
+<template>
+  <modal
+    :name="dialogName"
+    classes="dialog"
+    height="auto"
+    width="80%"
+    scrollable
+    :clickToClose="false"
+  >
+    <div class="dialog-header">
+      CSV import
+      <close-icon @click="cancelCsvImport" :disabled="disableDialog"/>
+    </div>
+    <div class="dialog-body">
+      <text-field
+        label="Table name"
+        v-model="tableName"
+        width="484px"
+        :disabled="disableDialog"
+        :error-msg="tableNameError"
+        id="csv-table-name"
+      />
+      <div class="chars">
+        <delimiter-selector
+          v-model="delimiter"
+          width="210px"
+          class="char-input"
+          @input="previewCsv"
+          :disabled="disableDialog"
+        />
+        <text-field
+          label="Quote char"
+          hint="The character used to quote fields."
+          v-model="quoteChar"
+          width="93px"
+          :disabled="disableDialog"
+          class="char-input"
+          id="quote-char"
+        />
+        <text-field
+          label="Escape char"
+          hint='The character used to escape the quote character within a field (e.g. "column with ""quotes"" in text").'
+          max-hint-width="242px"
+          v-model="escapeChar"
+          width="93px"
+          :disabled="disableDialog"
+          class="char-input"
+          id="escape-char"
+        />
+      </div>
+      <check-box
+        @click="header = $event"
+        :init="true"
+        label="Use first row as column headers"
+        :disabled="disableDialog"
+      />
+      <sql-table
+        v-if="previewData
+          && (previewData.rowCount > 0 || Object.keys(previewData).length > 0)
+        "
+        :data-set="previewData"
+        class="preview-table"
+        :preview="true"
+      />
+      <div v-else class="no-data">No data</div>
+      <logs
+        class="import-csv-errors"
+        :messages="importCsvMessages"
+      />
+    </div>
+    <div class="dialog-buttons-container">
+      <button
+        class="secondary"
+        :disabled="disableDialog"
+        @click="cancelCsvImport"
+        id="csv-cancel"
+      >
+        Cancel
+      </button>
+      <button
+        v-show="!importCsvCompleted"
+        class="primary"
+        :disabled="disableDialog"
+        @click="loadFromCsv(file)"
+        id="csv-import"
+      >
+        Import
+      </button>
+      <button
+        v-show="importCsvCompleted"
+        class="primary"
+        :disabled="disableDialog"
+        @click="finish"
+        id="csv-finish"
+      >
+        Finish
+      </button>
+    </div>
+  </modal>
+</template>
+
+<script>
+import csv from './csv'
+import CloseIcon from '@/components/svg/close'
+import TextField from '@/components/TextField'
+import DelimiterSelector from './DelimiterSelector'
+import CheckBox from '@/components/CheckBox'
+import SqlTable from '@/components/SqlTable'
+import Logs from '@/components/Logs'
+import time from '@/lib/utils/time'
+import fIo from '@/lib/utils/fileIo'
+
+export default {
+  name: 'CsvImport',
+  components: {
+    CloseIcon,
+    TextField,
+    DelimiterSelector,
+    CheckBox,
+    SqlTable,
+    Logs
+  },
+  props: ['file', 'db', 'dialogName'],
+  data () {
+    return {
+      disableDialog: false,
+      tableName: '',
+      delimiter: '',
+      quoteChar: '"',
+      escapeChar: '"',
+      header: true,
+      importCsvCompleted: false,
+      importCsvMessages: [],
+      previewData: null,
+      addedTable: null,
+      tableNameError: ''
+    }
+  },
+  watch: {
+    quoteChar () {
+      this.previewCsv()
+    },
+
+    escapeChar () {
+      this.previewCsv()
+    },
+
+    header () {
+      this.previewCsv()
+    },
+    tableName: time.debounce(function () {
+      this.tableNameError = ''
+      if (!this.tableName) {
+        return
+      }
+      this.db.validateTableName(this.tableName)
+        .catch(err => {
+          this.tableNameError = err.message + '. Try another table name.'
+        })
+    }, 400)
+  },
+  methods: {
+    cancelCsvImport () {
+      if (!this.disableDialog) {
+        if (this.addedTable) {
+          this.db.execute(`DROP TABLE "${this.addedTable}"`)
+          this.db.refreshSchema()
+        }
+        this.$modal.hide(this.dialogName)
+        this.$emit('cancel')
+      }
+    },
+    reset () {
+      this.header = true
+      this.quoteChar = '"'
+      this.escapeChar = '"'
+      this.delimiter = ''
+      this.tableName = ''
+      this.disableDialog = false
+      this.importCsvCompleted = false
+      this.importCsvMessages = []
+      this.previewData = null
+      this.addedTable = null
+      this.tableNameError = ''
+    },
+    open () {
+      this.tableName = this.db.sanitizeTableName(fIo.getFileName(this.file))
+      this.$modal.show(this.dialogName)
+    },
+    async previewCsv () {
+      this.importCsvCompleted = false
+      const config = {
+        preview: 3,
+        quoteChar: this.quoteChar || '"',
+        escapeChar: this.escapeChar,
+        header: this.header,
+        delimiter: this.delimiter
+      }
+      try {
+        const start = new Date()
+        const parseResult = await csv.parse(this.file, config)
+        const end = new Date()
+        this.previewData = parseResult.data
+        this.delimiter = parseResult.delimiter
+
+        // In parseResult.messages we can get parse errors
+        this.importCsvMessages = parseResult.messages || []
+
+        if (!parseResult.hasErrors) {
+          this.importCsvMessages.push({
+            message: `Preview parsing is completed in ${time.getPeriod(start, end)}.`,
+            type: 'success'
+          })
+        }
+      } catch (err) {
+        this.importCsvMessages = [{
+          message: err,
+          type: 'error'
+        }]
+      }
+    },
+    async loadFromCsv (file) {
+      if (!this.tableName) {
+        this.tableNameError = "Table name can't be empty"
+        return
+      }
+
+      this.disableDialog = true
+      const config = {
+        quoteChar: this.quoteChar || '"',
+        escapeChar: this.escapeChar,
+        header: this.header,
+        delimiter: this.delimiter
+      }
+      const parseCsvMsg = {
+        message: 'Parsing CSV...',
+        type: 'info'
+      }
+      this.importCsvMessages.push(parseCsvMsg)
+      const parseCsvLoadingIndicator = setTimeout(() => { parseCsvMsg.type = 'loading' }, 1000)
+
+      const importMsg = {
+        message: 'Importing CSV into a SQLite database...',
+        type: 'info'
+      }
+      let importLoadingIndicator = null
+
+      const updateProgress = progress => {
+        this.$set(importMsg, 'progress', progress)
+      }
+      const progressCounterId = this.db.createProgressCounter(updateProgress)
+
+      try {
+        let start = new Date()
+        const parseResult = await csv.parse(this.file, config)
+        let end = new Date()
+
+        if (!parseResult.hasErrors) {
+          const rowCount = parseResult.rowCount
+          let period = time.getPeriod(start, end)
+          parseCsvMsg.type = 'success'
+
+          if (parseResult.messages.length > 0) {
+            this.importCsvMessages = this.importCsvMessages.concat(parseResult.messages)
+            parseCsvMsg.message = `${rowCount} rows are parsed in ${period}.`
+          } else {
+            // Inform about csv parsing success
+            parseCsvMsg.message = `${rowCount} rows are parsed successfully in ${period}.`
+          }
+
+          // Loading indicator for csv parsing is not needed anymore
+          clearTimeout(parseCsvLoadingIndicator)
+
+          // Add info about import start
+          this.importCsvMessages.push(importMsg)
+
+          // Show import progress after 1 second
+          importLoadingIndicator = setTimeout(() => {
+            importMsg.type = 'loading'
+          }, 1000)
+
+          // Add table
+          start = new Date()
+          await this.db.addTableFromCsv(this.tableName, parseResult.data, progressCounterId)
+          end = new Date()
+
+          this.addedTable = this.tableName
+          // Inform about import success
+          period = time.getPeriod(start, end)
+          importMsg.message = `Importing CSV into a SQLite database is completed in ${period}.`
+          importMsg.type = 'success'
+
+          // Loading indicator for import is not needed anymore
+          clearTimeout(importLoadingIndicator)
+
+          this.importCsvCompleted = true
+        } else {
+          parseCsvMsg.message = 'Parsing ended with errors.'
+          parseCsvMsg.type = 'info'
+          this.importCsvMessages = this.importCsvMessages.concat(parseResult.messages)
+        }
+      } catch (err) {
+        if (parseCsvMsg.type === 'loading') {
+          parseCsvMsg.type = 'info'
+        }
+
+        if (importMsg.type === 'loading') {
+          importMsg.type = 'info'
+        }
+
+        this.importCsvMessages.push({
+          message: err,
+          type: 'error'
+        })
+      }
+
+      clearTimeout(parseCsvLoadingIndicator)
+      clearTimeout(importLoadingIndicator)
+      this.db.deleteProgressCounter(progressCounterId)
+      this.disableDialog = false
+    },
+    async finish () {
+      this.$modal.hide(this.dialogName)
+      const stmt = [
+        '/*',
+        ` * Your CSV file has been imported into ${this.addedTable} table.`,
+        ' * You can run this SQL query to make all CSV records available for charting.',
+        ' */',
+        `SELECT * FROM "${this.addedTable}"`
+      ].join('\n')
+      const tabId = await this.$store.dispatch('addTab', { query: stmt })
+      this.$store.commit('setCurrentTabId', tabId)
+      this.importCsvCompleted = false
+      this.$emit('finish')
+    }
+  }
+}
+</script>
+
+<style scoped>
+.dialog-body {
+  padding-bottom: 0;
+}
+
+.chars {
+  display: flex;
+  align-items: flex-end;
+  margin: 24px 0 20px;
+}
+.char-input {
+  margin-right: 44px;
+}
+.preview-table {
+  margin-top: 18px;
+}
+
+.import-csv-errors {
+  height: 136px;
+  margin-top: 8px;
+}
+.no-data {
+  margin-top: 32px;
+  background-color: white;
+  border-radius: 5px;
+  position: relative;
+  border: 1px solid var(--color-border-light);
+  box-sizing: border-box;
+  height: 147px;
+  font-size: 13px;
+  color: var(--color-text-base);
+  display: flex;
+  justify-content: center;
+  align-items: center;
+}
+
+/* https://github.com/euvl/vue-js-modal/issues/623 */
+>>> .vm--modal {
+  max-width: 1152px;
+  margin: auto;
+  left: 0 !important;
+}
+</style>

src/components/DbUploader.vue

@@ -1,7 +1,7 @@
 <template>
-  <div class="db-uploader-container">
-    <change-db-icon v-if="type === 'small'" @click.native="browse"/>
-    <div v-if="['regular', 'illustrated'].includes(type)" class="drop-area-container">
+  <div class="db-uploader-container" :style="{ width }">
+    <change-db-icon v-if="type === 'small'" @click="browse"/>
+    <div v-if="type === 'illustrated'" class="drop-area-container">
       <div
         class="drop-area"
         @dragover.prevent="state = 'dragover'"
@@ -26,7 +26,8 @@
         ref="fileImg"
         :class="{
           'swing': state === 'dragover',
-          'fly': state === 'drop'
+          'fly': state === 'dropping',
+          'hidden': state === 'dropped'
         }"
         :src="require('@/assets/images/file.png')"
       />
@@ -41,103 +42,22 @@
     <div id="error" class="error"></div>
 
     <!--Parse csv dialog  -->
-    <modal name="parse" classes="dialog" height="auto" width="60%" :clickToClose="false">
-      <div class="dialog-header">
-        Import CSV
-        <close-icon @click="cancelCsvImport" :disabled="disableDialog"/>
-      </div>
-      <div class="dialog-body">
-        <div class="chars">
-          <delimiter-selector
-            v-model="delimiter"
-            width="210px"
-            class="char-input"
-            @input="previewCSV"
-            :disabled="disableDialog"
-          />
-          <text-field
-            label="Quote char"
-            hint="The character used to quote fields."
-            v-model="quoteChar"
-            width="93px"
-            :disabled="disableDialog"
-            class="char-input"
-            id="quote-char"
-          />
-          <text-field
-            label="Escape char"
-            hint='The character used to escape the quote character within a field (e.g. "column with ""quotes"" in text").'
-            max-hint-width="242px"
-            v-model="escapeChar"
-            width="93px"
-            :disabled="disableDialog"
-            class="char-input"
-            id="escape-char"
-          />
-        </div>
-        <check-box
-          @click="header = $event"
-          :init="true"
-          label="Use first row as column headers"
-          :disabled="disableDialog"
-        />
-        <sql-table
-          v-if="previewData"
-          :data-set="previewData"
-          height="160"
-          class="preview-table"
-          :preview="true"
-        />
-        <div v-if="!previewData" class="no-data">No data</div>
-        <logs
-          class="import-csv-errors"
-          :messages="importCsvMessages"
-        />
-      </div>
-      <div class="dialog-buttons-container">
-        <button
-          class="secondary"
-          :disabled="disableDialog"
-          @click="cancelCsvImport"
-          id="csv-cancel"
-        >
-          Cancel
-        </button>
-        <button
-          v-show="!importCsvCompleted"
-          class="primary"
-          :disabled="disableDialog"
-          @click="loadFromCsv(file)"
-          id="csv-import"
-        >
-          Import
-        </button>
-        <button
-          v-show="importCsvCompleted"
-          class="primary"
-          :disabled="disableDialog"
-          @click="finish"
-          id="csv-finish"
-        >
-          Finish
-        </button>
-      </div>
-    </modal>
+    <csv-import
+      ref="addCsv"
+      :file="file"
+      :db="newDb"
+      dialog-name="importFromCsv"
+      @cancel="cancelCsvImport"
+      @finish="finish"
+    />
   </div>
 </template>
 
 <script>
-import fu from '@/file.utils'
-import csv from '@/csv'
-import CloseIcon from '@/components/svg/close'
-import TextField from '@/components/TextField'
-import DelimiterSelector from '@/components/DelimiterSelector'
-import CheckBox from '@/components/CheckBox'
-import SqlTable from '@/components/SqlTable'
-import Logs from '@/components/Logs'
+import fIo from '@/lib/utils/fileIo'
 import ChangeDbIcon from '@/components/svg/changeDb'
-import time from '@/time'
-import database from '@/database'
+import database from '@/lib/database'
+import CsvImport from '@/components/CsvImport'
 
 export default {
   name: 'DbUploader',
@@ -145,35 +65,26 @@ export default {
     type: {
       type: String,
       required: false,
-      default: 'regular',
+      default: 'small',
       validator: (value) => {
-        return ['regular', 'illustrated', 'small'].includes(value)
+        return ['illustrated', 'small'].includes(value)
       }
+    },
+    width: {
+      type: String,
+      required: false,
+      default: 'unset'
     }
   },
   components: {
     ChangeDbIcon,
-    TextField,
-    DelimiterSelector,
-    CloseIcon,
-    CheckBox,
-    SqlTable,
-    Logs
+    CsvImport
   },
   data () {
     return {
       state: '',
       animationPromise: Promise.resolve(),
       file: null,
-      schema: null,
-      delimiter: '',
-      quoteChar: '"',
-      escapeChar: '"',
-      header: true,
-      previewData: null,
-      importCsvMessages: [],
-      disableDialog: false,
-      importCsvCompleted: false,
       newDb: null
     }
   },
@@ -182,205 +93,50 @@ export default {
       this.animationPromise = new Promise((resolve) => {
         this.$refs.fileImg.addEventListener('animationend', event => {
           if (event.animationName.startsWith('fly')) {
+            this.state = 'dropped'
             resolve()
           }
         })
       })
     }
   },
-  watch: {
-    quoteChar () {
-      this.previewCSV()
-    },
-
-    escapeChar () {
-      this.previewCSV()
-    },
-
-    header () {
-      this.previewCSV()
-    }
-  },
   methods: {
     cancelCsvImport () {
-      if (!this.disableDialog) {
-        this.$modal.hide('parse')
-        if (this.newDb) {
-          this.newDb.shutDown()
-          this.newDb = null
-        }
+      if (this.newDb) {
+        this.newDb.shutDown()
+        this.newDb = null
       }
     },
 
     async finish () {
       this.$store.commit('setDb', this.newDb)
-      this.$store.commit('saveSchema', this.schema)
-      if (this.importCsvCompleted) {
-        this.$modal.hide('parse')
-        const tabId = await this.$store.dispatch('addTab', { query: 'select * from csv_import' })
-        this.$store.commit('setCurrentTabId', tabId)
-      }
-      if (this.$route.path !== '/editor') {
-        this.$router.push('/editor')
-      }
-    },
-
-    async previewCSV () {
-      this.importCsvCompleted = false
-      const config = {
-        preview: 3,
-        quoteChar: this.quoteChar || '"',
-        escapeChar: this.escapeChar,
-        header: this.header,
-        delimiter: this.delimiter
-      }
-      try {
-        const start = new Date()
-        const parseResult = await csv.parse(this.file, config)
-        const end = new Date()
-        this.previewData = parseResult.data
-        this.delimiter = parseResult.delimiter
-
-        // In parseResult.messages we can get parse errors
-        this.importCsvMessages = parseResult.messages || []
-
-        if (!parseResult.hasErrors) {
-          this.importCsvMessages.push({
-            message: `Preview parsing is completed in ${time.getPeriod(start, end)}.`,
-            type: 'success'
-          })
-        }
-      } catch (err) {
-        this.importCsvMessages = [{
-          message: err,
-          type: 'error'
-        }]
+      if (this.$route.path !== '/workspace') {
+        this.$router.push('/workspace')
       }
     },
 
     loadDb (file) {
-      this.newDb = database.getNewDatabase()
       return Promise.all([this.newDb.loadDb(file), this.animationPromise])
-        .then(([schema]) => {
-          this.schema = schema
-          this.finish()
-        })
-    },
-
-    async loadFromCsv (file) {
-      this.disableDialog = true
-      const config = {
-        quoteChar: this.quoteChar || '"',
-        escapeChar: this.escapeChar,
-        header: this.header,
-        delimiter: this.delimiter
-      }
-      const parseCsvMsg = {
-        message: 'Parsing CSV...',
-        type: 'info'
-      }
-      this.importCsvMessages.push(parseCsvMsg)
-      const parseCsvLoadingIndicator = setTimeout(() => { parseCsvMsg.type = 'loading' }, 1000)
-
-      const importMsg = {
-        message: 'Importing CSV into a SQLite database...',
-        type: 'info'
-      }
-      let importLoadingIndicator = null
-
-      const updateProgress = progress => {
-        this.$set(importMsg, 'progress', progress)
-      }
-      this.newDb = database.getNewDatabase()
-      const progressCounterId = this.newDb.createProgressCounter(updateProgress)
-
-      try {
-        let start = new Date()
-        const parseResult = await csv.parse(this.file, config)
-        let end = new Date()
-
-        if (!parseResult.hasErrors) {
-          const rowCount = parseResult.data.values.length
-          let period = time.getPeriod(start, end)
-          parseCsvMsg.type = 'success'
-
-          if (parseResult.messages.length > 0) {
-            this.importCsvMessages = this.importCsvMessages.concat(parseResult.messages)
-            parseCsvMsg.message = `${rowCount} rows are parsed in ${period}.`
-          } else {
-            // Inform about csv parsing success
-            parseCsvMsg.message = `${rowCount} rows are parsed successfully in ${period}.`
-          }
-
-          // Loading indicator for csv parsing is not needed anymore
-          clearTimeout(parseCsvLoadingIndicator)
-
-          // Add info about import start
-          this.importCsvMessages.push(importMsg)
-
-          // Show import progress after 1 second
-          importLoadingIndicator = setTimeout(() => {
-            importMsg.type = 'loading'
-          }, 1000)
-
-          // Create db with csv table and get schema
-          start = new Date()
-          this.schema = await this.newDb.createDb(file.name, parseResult.data, progressCounterId)
-          end = new Date()
-
-          // Inform about import success
-          period = time.getPeriod(start, end)
-          importMsg.message = `Importing CSV into a SQLite database is completed in ${period}.`
-          importMsg.type = 'success'
-
-          // Loading indicator for import is not needed anymore
-          clearTimeout(importLoadingIndicator)
-
-          this.importCsvCompleted = true
-        } else {
-          parseCsvMsg.message = 'Parsing ended with errors.'
-          parseCsvMsg.type = 'info'
-          this.importCsvMessages = this.importCsvMessages.concat(parseResult.messages)
-        }
-      } catch (err) {
-        if (parseCsvMsg.type === 'loading') {
-          parseCsvMsg.type = 'info'
-        }
-
-        if (importMsg.type === 'loading') {
-          importMsg.type = 'info'
-        }
-
-        this.importCsvMessages.push({
-          message: err,
-          type: 'error'
-        })
-      }
-
-      clearTimeout(parseCsvLoadingIndicator)
-      clearTimeout(importLoadingIndicator)
-      this.newDb.deleteProgressCounter(progressCounterId)
-      this.disableDialog = false
+        .then(this.finish)
     },
 
     async checkFile (file) {
-      this.state = 'drop'
-      if (file.type === 'text/csv') {
-        this.file = file
-        this.header = true
-        this.quoteChar = '"'
-        this.escapeChar = '"'
-        this.delimiter = ''
-        return Promise.all([this.previewCSV(), this.animationPromise])
-          .then(() => {
-            this.$modal.show('parse')
-          })
-      } else {
+      this.state = 'dropping'
+      this.newDb = database.getNewDatabase()
+
+      if (fIo.isDatabase(file)) {
         this.loadDb(file)
+      } else {
+        this.file = file
+        await this.$nextTick()
+        const csvImport = this.$refs.addCsv
+        csvImport.reset()
+        return Promise.all([csvImport.previewCsv(), this.animationPromise])
+          .then(csvImport.open)
       }
     },
     browse () {
-      fu.getFileFromUser('.db,.sqlite,.sqlite3,.csv')
+      fIo.getFileFromUser('.db,.sqlite,.sqlite3,.csv')
         .then(this.checkFile)
     },
 
@@ -416,6 +172,7 @@ export default {
   align-items: center;
   justify-content: center;
   height: 100%;
+  cursor: pointer;
 }
 
 #img-container {
@@ -487,42 +244,16 @@ export default {
 #file-img.fly {
   animation: fly ease-in-out 1s 1 normal;
   transform-origin: center center;
-  top: 183px;
-  left: 225px;
-  transition: top 1s ease-in-out, left 1s ease-in-out;
 }
 @keyframes fly {
-  100% { transform: rotate(360deg) scale(0.5); }
-}
-/* Parse CSV dialog */
-.chars {
-  display: flex;
-  align-items: flex-end;
-  margin-bottom: 20px;
-}
-.char-input {
-  margin-right: 44px;
-}
-.preview-table {
-  margin-top: 32px;
+  100% {
+    transform: rotate(360deg) scale(0.5);
+    top: 183px;
+    left: 225px;
+  }
 }
 
-.import-csv-errors {
-  height: 160px;
-  margin-top: 32px;
-}
-.no-data {
-  margin-top: 32px;
-  background-color: white;
-  border-radius: 5px;
-  position: relative;
-  border: 1px solid var(--color-border-light);
-  box-sizing: border-box;
-  height: 160px;
-  font-size: 13px;
-  color: var(--color-text-base);
-  display: flex;
-  justify-content: center;
-  align-items: center;
+#file-img.hidden {
+  display: none;
 }
 </style>

src/components/IconButton.vue

@@ -0,0 +1,110 @@
+<template>
+  <div
+    :class="['icon-btn', { active }, { disabled }]"
+    @click="onClick"
+    @mouseenter="showTooltip($event, tooltipPosition)"
+    @mouseleave="hideTooltip"
+  >
+    <div class="icon"><slot /></div>
+    <div v-show="loading" class="icon-in-progress">
+      <loading-indicator />
+    </div>
+    <span v-if="tooltip" class="icon-tooltip" :style="tooltipStyle" ref="tooltip">
+      {{ tooltip }}
+    </span>
+  </div>
+</template>
+
+<script>
+import tooltipMixin from '@/tooltipMixin'
+import LoadingIndicator from '@/components/LoadingIndicator'
+
+export default {
+  name: 'SideBarButton',
+  props: ['active', 'disabled', 'tooltip', 'tooltipPosition', 'loading'],
+  components: { LoadingIndicator },
+  mixins: [tooltipMixin],
+  methods: {
+    onClick () {
+      this.hideTooltip()
+      this.$emit('click')
+    }
+  }
+}
+</script>
+
+<style scoped>
+.icon-btn {
+  box-sizing: border-box;
+  width: 26px;
+  height: 26px;
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  position: relative;
+}
+.icon-btn:hover {
+  border: 1px solid var(--color-border);
+  border-radius: var(--border-radius-medium-2);
+}
+
+.icon-btn:hover .icon >>> path,
+.icon-btn.active .icon >>> path,
+.icon-btn:hover .icon >>> circle,
+.icon-btn.active .icon >>> circle {
+  fill: var(--color-accent);
+}
+
+.disabled.icon-btn  .icon >>> path,
+.disabled.icon-btn  .icon >>> circle {
+  fill: var(--color-border);
+}
+
+.disabled.icon-btn {
+  cursor: default;
+  pointer-events: none;
+}
+
+.disabled.icon-btn:hover .icon >>> path {
+  fill: var(--color-border);
+}
+
+.icon-in-progress {
+  position: absolute;
+  width: 26px;
+  height: 26px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background-color: var(--color-bg-light);
+  will-change: opacity;
+  /*
+    We need to show loader in 1 sec after starting query execution. We can't do that with
+    setTimeout because the main thread can be busy by getting a result set from the web worker.
+    But we can use CSS animation for opacity. Opacity triggers changes only in the Composite Layer
+    stage in rendering waterfall. Hence it can be processed only with Compositor Thread while
+    the Main Thread processes a result set.
+    https://www.viget.com/articles/animation-performance-101-browser-under-the-hood/
+  */
+  animation: show-loader 1s linear 0s 1;
+}
+
+@keyframes show-loader {
+  0% {
+    opacity: 0;
+  }
+  99% {
+    opacity: 0;
+  }
+  100% {
+    opacity: 1;
+  }
+}
+
+.icon {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+</style>

src/components/LoadingIndicator.vue

@@ -1,17 +1,18 @@
 <template>
-  <svg :class="['svg-container', animationClass ]" height="20" width="20" viewBox="0 0 20 20">
+  <svg :class="animationClass" :height="size" :width="size" :viewBox="`0 0 ${size} ${size}`">
     <circle
       class="loader-svg bg"
-      cx="10"
-      cy="10"
-      r="8"
+      :style="{ strokeWidth }"
+      :cx="size / 2"
+      :cy="size / 2"
+      :r="radius"
     />
     <circle
       class="loader-svg front"
-      :style="{ strokeDasharray: circleProgress }"
-      cx="10"
-      cy="10"
-      r="8"
+      :style="{ strokeDasharray: circleProgress, strokeDashoffset: offset, strokeWidth }"
+      :cx="size / 2"
+      :cy="size / 2"
+      :r="radius"
     />
   </svg>
 </template>
@@ -19,15 +20,35 @@
 <script>
 export default {
   name: 'LoadingIndicator',
-  props: ['progress'],
+  props: {
+    progress: {
+      type: Number,
+      required: false
+    },
+    size: {
+      type: Number,
+      required: false,
+      default: 20
+    }
+  },
   computed: {
     circleProgress () {
-      const dash = (50.24 * this.progress) / 100
-      const space = 50.24 - dash
-      return `${dash}, ${space}`
+      const circle = this.radius * 3.14 * 2
+      const dash = this.progress ? (circle * this.progress) / 100 : circle * 1 / 3
+      const space = circle - dash
+      return `${dash}px, ${space}px`
     },
     animationClass () {
       return this.progress === undefined ? 'loading' : 'progress'
+    },
+    radius () {
+      return this.size / 2 - this.strokeWidth
+    },
+    offset () {
+      return this.radius * 3.14 / 2
+    },
+    strokeWidth () {
+      return this.size / 10
     }
   }
 }
@@ -38,7 +59,6 @@ export default {
   position: absolute;
   left: 0; right: 0; top: 0; bottom: 0;
   fill: none;
-  stroke-width: 2px;
   stroke-linecap: round;
   stroke: var(--color-accent);
 }
@@ -48,27 +68,30 @@ export default {
 }
 
 .loading .loader-svg.front {
-  stroke-dasharray: 40.24;
+  will-change: transform;
   animation: fill-animation-loading 1s cubic-bezier(1,1,1,1) 0s infinite;
+  transform-origin: center;
 }
 
+/*
+  We can't change anything in loading animation except transform, opacity and filter. Because in
+  our case the Main Thread can be busy and animation will be frozen (e. g. getting a result set
+  from the web-worker after query execution).
+  But transform, opacity and filter trigger changes only in the Composite Layer stage in rendering
+  waterfall. Hence they can be processed only with Compositor Thread while the Main Thread
+  processes something else.
+  https://www.viget.com/articles/animation-performance-101-browser-under-the-hood/
+*/
 @keyframes fill-animation-loading {
   0% {
-    stroke-dasharray: 10 40.24;
-    stroke-dashoffset: 0;
-  }
-  50% {
-    stroke-dasharray: 25.12;
-    stroke-dashoffset: 25.12;
+    transform: rotate(0deg);
   }
   100% {
-    stroke-dasharray: 10 40.24 ;
-    stroke-dashoffset: 50.24;
+    transform: rotate(360deg);
   }
 }
 
 .progress .loader-svg.front {
-  stroke-dashoffset: 12.56;
   transition: stroke-dasharray 0.2s;
 }
 

src/components/Logs.vue

@@ -63,14 +63,16 @@ export default {
   border-radius: 5px;
   border: 1px solid var(--color-border-light);
   box-sizing: border-box;
-  overflow-y: scroll;
+  overflow-y: auto;
+  color: var(--color-text-base);
 }
 .msg {
-  padding: 16px 7px;
+  padding: 12px 7px;
   border-bottom: 1px solid var(--color-border-light);
   display: flex;
   align-items: flex-start;
   font-family: monospace;
+  font-size: 13px;
 }
 
 .msg:last-child {

src/components/Splitpanes/index.vue

@@ -65,7 +65,7 @@
 </template>
 
 <script>
-import splitter from '@/splitter'
+import splitter from './splitter'
 
 export default {
   name: 'Splitpanes',

src/components/SqlEditor.vue

@@ -1,64 +0,0 @@
-<template>
-  <div class="codemirror-container">
-    <codemirror v-model="query" :options="cmOptions" @changes="onChange" />
-  </div>
-</template>
-
-<script>
-import hint from '@/hint'
-import { codemirror } from 'vue-codemirror'
-import 'codemirror/lib/codemirror.css'
-import 'codemirror/mode/sql/sql.js'
-import 'codemirror/theme/neo.css'
-import 'codemirror/addon/hint/show-hint.css'
-import 'codemirror/addon/display/autorefresh.js'
-
-export default {
-  name: 'SqlEditor',
-  props: ['value'],
-  components: { codemirror },
-  data () {
-    return {
-      query: this.value,
-      cmOptions: {
-        // codemirror options
-        tabSize: 4,
-        mode: 'text/x-mysql',
-        theme: 'neo',
-        lineNumbers: true,
-        line: true,
-        autofocus: true,
-        autoRefresh: true
-      }
-    }
-  },
-  watch: {
-    query () {
-      this.$emit('input', this.query)
-    }
-  },
-  methods: {
-    onChange: hint.show
-  }
-}
-</script>
-
-<style scoped>
-.codemirror-container {
-  flex-grow: 1;
-  min-height: 0;
-}
-
->>> .vue-codemirror {
-  height: 100%;
-  max-height: 100%;
-}
->>> .CodeMirror {
-  height: 100%;
-  max-height: 100%;
-}
->>> .CodeMirror-cursor {
-  width: 1px;
-  background: var(--color-text-base);
-}
-</style>

src/components/SqlTable/Pager.vue

@@ -49,6 +49,7 @@ export default {
 .paginator-continer {
   display: flex;
   align-items: center;
+  line-height: 10px;
 }
 >>> .paginator-page-link {
   padding: 2px 3px;

src/components/SqlTable/index.vue

@@ -17,20 +17,21 @@
         class="table-container"
         ref="table-container"
         @scroll="onScrollTable"
-        :style="{maxHeight: `${height}px`}"
       >
-      <table ref="table">
+      <table ref="table" class="sqliteviz-table">
         <thead>
           <tr>
-            <th v-for="(th,index) in dataSet.columns" :key="index" ref="th">
+            <th v-for="(th, index) in columns" :key="index" ref="th">
               <div class="cell-data" :style="cellStyle">{{ th }}</div>
             </th>
           </tr>
         </thead>
         <tbody>
-          <tr v-for="(row,index) in currentPageData" :key="index">
-            <td v-for="(value, valIndex) in row" :key="valIndex">
-              <div class="cell-data" :style="cellStyle">{{ value }}</div>
+          <tr v-for="rowIndex in currentPageData.count" :key="rowIndex">
+            <td v-for="(col, colIndex) in columns" :key="colIndex">
+              <div class="cell-data" :style="cellStyle">
+                {{ dataSet[col][rowIndex - 1 + currentPageData.start] }}
+              </div>
             </td>
           </tr>
         </tbody>
@@ -39,8 +40,9 @@
     </div>
     <div class="table-footer">
       <div class="table-footer-count">
-        {{ dataSet.values.length}} {{dataSet.values.length === 1 ? 'row' : 'rows'}} retrieved
+        {{ rowCount }} {{rowCount === 1 ? 'row' : 'rows'}} retrieved
         <span v-if="preview">for preview</span>
+        <span v-if="time">in {{ time }}</span>
       </div>
       <pager v-show="pageCount > 1" :page-count="pageCount" v-model="currentPage" />
     </div>
@@ -48,12 +50,20 @@
 </template>
 
 <script>
-import Pager from '@/components/Pager'
+import Pager from './Pager'
 
 export default {
   name: 'SqlTable',
   components: { Pager },
-  props: ['dataSet', 'height', 'preview'],
+  props: {
+    dataSet: Object,
+    time: String,
+    pageSize: {
+      type: Number,
+      default: 20
+    },
+    preview: Boolean
+  },
   data () {
     return {
       header: null,
@@ -63,20 +73,30 @@ export default {
     }
   },
   computed: {
+    columns () {
+      return Object.keys(this.dataSet)
+    },
+    rowCount () {
+      return this.dataSet[this.columns[0]].length
+    },
     cellStyle () {
-      const eq = this.tableWidth / this.dataSet.columns.length
-
+      const eq = this.tableWidth / this.columns.length
       return { maxWidth: `${Math.max(eq, 100)}px` }
     },
-    pageSize () {
-      return Math.max(Math.floor(this.height / 40), 20)
-    },
     pageCount () {
-      return Math.ceil(this.dataSet.values.length / this.pageSize)
+      return Math.ceil(this.rowCount / this.pageSize)
     },
     currentPageData () {
       const start = (this.currentPage - 1) * this.pageSize
-      return this.dataSet.values.slice(start, start + this.pageSize)
+      let end = start + this.pageSize
+      if (end > this.rowCount - 1) {
+        end = this.rowCount - 1
+      }
+      return {
+        start,
+        end,
+        count: end - start + 1
+      }
     }
   },
   methods: {

src/components/Tab.vue

@@ -1,190 +0,0 @@
-<template>
-  <div class="tab-content-container" v-show="isActive">
-    <splitpanes
-      class="query-results-splitter"
-      horizontal
-      :before="{ size: 50, max: 100 }"
-      :after="{ size: 50, max: 100 }"
-    >
-      <template #left-pane>
-        <div class="query-editor">
-          <sql-editor v-model="query" />
-        </div>
-      </template>
-      <template #right-pane>
-        <div id="bottomPane" ref="bottomPane">
-          <view-switcher :view.sync="view" />
-          <div v-show="view === 'table'" class="table-view">
-            <div
-              v-show="result === null && !isGettingResults && !error"
-              class="table-preview result-before"
-            >
-              Run your query and get results here
-            </div>
-            <div v-show="isGettingResults" class="table-preview result-in-progress">
-              Fetching results...
-            </div>
-            <div
-              v-show="result === undefined && !isGettingResults && !error"
-              class="table-preview result-empty"
-            >
-              No rows retrieved according to your query
-            </div>
-            <div v-show="error" class="table-preview error">
-              {{ error }}
-            </div>
-            <sql-table v-if="result" :data-set="result" :height="tableViewHeight" />
-          </div>
-          <chart
-            :visible="view === 'chart'"
-            :sql-result="result"
-            :init-chart="initChart"
-            ref="chart"
-            @update="$store.commit('updateTab', { index: tabIndex, isUnsaved: true })"
-          />
-        </div>
-      </template>
-    </splitpanes>
-  </div>
-</template>
-
-<script>
-import SqlTable from '@/components/SqlTable'
-import SqlEditor from '@/components/SqlEditor'
-import Splitpanes from '@/components/Splitpanes'
-import ViewSwitcher from '@/components/ViewSwitcher'
-import Chart from '@/components/Chart'
-
-export default {
-  name: 'Tab',
-  props: ['id', 'initName', 'initQuery', 'initChart', 'tabIndex', 'isPredefined'],
-  components: {
-    SqlEditor,
-    SqlTable,
-    Splitpanes,
-    ViewSwitcher,
-    Chart
-  },
-  data () {
-    return {
-      query: this.initQuery,
-      result: null,
-      view: 'table',
-      tableViewHeight: 0,
-      isGettingResults: false,
-      error: null,
-      resizeObserver: null
-    }
-  },
-  computed: {
-    isActive () {
-      return this.id === this.$store.state.currentTabId
-    }
-  },
-  created () {
-    this.$store.commit('setCurrentTab', this)
-  },
-  mounted () {
-    this.resizeObserver = new ResizeObserver(this.handleResize)
-    this.resizeObserver.observe(this.$refs.bottomPane)
-    this.calculateTableHeight()
-  },
-  beforeDestroy () {
-    this.resizeObserver.unobserve(this.$refs.bottomPane)
-  },
-  watch: {
-    isActive () {
-      if (this.isActive) {
-        this.$store.commit('setCurrentTab', this)
-      }
-    },
-    query () {
-      this.$store.commit('updateTab', { index: this.tabIndex, isUnsaved: true })
-    }
-  },
-  methods: {
-    // Run a command in the database
-    async execute () {
-      this.isGettingResults = true
-      this.result = null
-      this.error = null
-      try {
-        this.result = await this.$store.state.db.execute(this.query + ';')
-      } catch (err) {
-        this.error = err
-      }
-      this.isGettingResults = false
-    },
-    handleResize () {
-      if (this.view === 'chart') {
-        // hack react-chart editor: hidden and show in order to make the graph resize
-        this.view = 'not chart'
-        this.$nextTick(() => {
-          this.view = 'chart'
-        })
-      }
-      this.calculateTableHeight()
-    },
-    calculateTableHeight () {
-      const bottomPane = this.$refs.bottomPane
-      // 88 - view swittcher height
-      // 42 - table footer width
-      // 30 - desirable space after the table
-      // 5 - padding-bottom of rounded table container
-      // 40 - height of table header
-      const freeSpace = bottomPane.offsetHeight - 88 - 42 - 30 - 5 - 40
-      this.tableViewHeight = freeSpace - (freeSpace % 40)
-    }
-  }
-}
-</script>
-
-<style scoped>
-.tab-content-container {
-  background-color: var(--color-white);
-  border-top: 1px solid var(--color-border-light);
-  margin-top: -1px;
-}
-
-#bottomPane {
-  height: 100%;
-  background-color: var(--color-bg-light);
-}
-
-.query-results-splitter {
-  height: calc(100vh - 104px);
-  background-color: var(--color-bg-light);
-}
-
-.query-editor {
-  display: flex;
-  flex-direction: column;
-  height: 100%;
-  max-height: 100%;
-  box-sizing: border-box;
-  min-height: 190px;
-}
-
-.table-view {
-  margin: 0 52px;
-  height: calc(100% - 88px);
-  position: relative;
-}
-
-.table-preview {
-  position: absolute;
-  top: 40%;
-  left: 50%;
-  transform: translate(-50%, -50%);
-  color: var(--color-text-base);
-  font-size: 13px;
-}
-
-.table-preview.error {
-  color: var(--color-text-error);
-}
-
-.table-preview.error::first-letter {
-  text-transform: capitalize;
-}
-</style>

src/components/TextField.vue

@@ -1,6 +1,6 @@
 <template>
   <div>
-    <div :class="['text-field-label', { error: errorMsg }, {'disabled': disabled}]">
+    <div v-if="label" :class="['text-field-label', { error: errorMsg }, {'disabled': disabled}]">
       {{ label }}
       <hint-icon class="hint" v-if="hint" :hint="hint" :max-width="maxHintWidth || '149px'"/>
     </div>
@@ -11,7 +11,7 @@
       :style="{ width: width }"
       :value="value"
       :disabled="disabled"
-      @input="$emit('input',  $event.target.value)"
+      @input="$emit('input', $event.target.value)"
     />
     <div v-show="errorMsg" class="text-field-error">{{ errorMsg }}</div>
   </div>
@@ -87,4 +87,7 @@ input.error {
   margin-top: 2px;
   position: absolute;
 }
+.text-field-error:first-letter {
+  text-transform: uppercase;
+}
 </style>

src/components/ViewSwitcher.vue

@@ -1,67 +0,0 @@
-<template>
-  <div class="view-switcher">
-    <div
-      :class="['table-mode', {'active-mode': view === 'table'}]"
-      @click="$emit('update:view','table')"
-    >
-      Table
-    </div>
-    <div
-      :class="['chart-mode', {'active-mode': view === 'chart'}]"
-      @click="$emit('update:view','chart')"
-    >
-      Chart
-    </div>
-  </div>
-</template>
-
-<script>
-export default {
-  name: 'ViewSwitcher',
-  props: ['view']
-}
-</script>
-
-<style scoped>
-.view-switcher {
-  height: 28px;
-  display: flex;
-  padding: 30px;
-  justify-content: center;
-}
-.view-switcher div {
-  height: 100%;
-  width: 136px;
-  box-sizing: border-box;
-  line-height: 28px;
-  font-size: 12px;
-  cursor: pointer;
-  background: var(--color-white);
-  border: 1px solid var(--color-border);
-  color: var(--color-text-base);
-  text-align: center;
-  font-weight: 400;
-}
-.view-switcher div:hover {
-  background-color: var(--color-bg-light);
-  color: var(--color-text-active);
-}
-.view-switcher div.active-mode {
-  background: var(--color-accent);
-  border: 1px solid var(--color-accent-shade);
-  color: var(--color-text-light);
-  text-shadow: var(--shadow);
-  z-index: 1;
-  font-weight: 600;
-}
-.view-switcher div.active-mode:hover {
-  background: var(--color-accent-shade);
-}
-.table-mode {
-  border-radius: var(--border-radius-medium) 0 0 var(--border-radius-medium);
-}
-.chart-mode {
-  margin-left: -1px;
-  border-radius: 0 var(--border-radius-medium) var(--border-radius-medium) 0;
-}
-</style>

src/components/svg/addTable.vue

@@ -0,0 +1,67 @@
+<template>
+  <span>
+    <svg
+      class="icon"
+      width="18"
+      height="18"
+      viewBox="0 0 18 18"
+      fill="none"
+      @click.stop="onClick"
+      @mouseenter="showTooltip"
+      @mouseleave="hideTooltip"
+    >
+      <g clip-path="url(#clip0)">
+        <path
+          fill-rule="evenodd"
+          clip-rule="evenodd"
+          d="
+            M13.6573 1.5H2.59985C1.77485 1.5 1.09985 2.175 1.09985 3V13.6649C1.09985 14.4899
+            1.77485 15.1649 2.59985
+            15.1649H9.84V13.6649H8.87866V9.08244H13.6573V9.83777H15.1573V3C15.1573
+            2.17 14.4873 1.5 13.6573 1.5ZM13.6573
+            7.58244V3H8.87866V7.58244H13.6573ZM7.37866 3H2.59985V7.58244H7.37866V3ZM2.59985
+            9.08244V13.6649H7.37866V9.08244H2.59985ZM13.1702
+            10.8434H15.6702V13.1717H18.0001V15.6717H15.6702V18H13.1702V15.6717H10.8401V13.1717H13.1702V10.8434Z
+          "
+          fill="#A2B1C6"
+        />
+      </g>
+      <defs>
+        <clipPath id="clip0">
+          <rect width="18" height="18" fill="white"/>
+        </clipPath>
+      </defs>
+    </svg>
+    <span class="icon-tooltip" :style="tooltipStyle" ref="tooltip">
+      Add new table from CSV
+    </span>
+  </span>
+</template>
+
+<script>
+import tooltipMixin from '@/tooltipMixin'
+
+export default {
+  name: 'AddTableIcon',
+  mixins: [tooltipMixin],
+  props: ['tooltip'],
+  methods: {
+    onClick () {
+      this.hideTooltip()
+      this.$emit('click')
+    }
+  }
+}
+</script>
+
+<style scoped>
+.icon {
+  display: block;
+  margin: 0;
+  cursor: pointer;
+}
+
+.icon:hover path {
+  fill: var(--color-accent);
+}
+</style>

src/components/svg/changeDb.vue

@@ -6,27 +6,33 @@
     height="18"
     viewBox="0 0 18 18"
     fill="none"
-    xmlns="http://www.w3.org/2000/svg"
-    @mouseover="showTooltip"
-    @mouseout="hideTooltip"
+    @click.stop="onClick"
+    @mouseenter="showTooltip"
+    @mouseleave="hideTooltip"
   >
     <path
       d="M3 10.5V12.75C3 14.25 5.2875 15.54 8.25 15.75V13.5825L8.3475 13.5C5.34 13.32 3 12.045 3 10.5ZM9 9.75C5.685 9.75 3 8.4075 3 6.75V9C3 10.6575 5.685 12 9 12C9.2925 12 9.5775 12 9.87 12L12.75 9.09C11.55 9.54 10.2825 9.75 9 9.75ZM9 2.25C5.685 2.25 3 3.5925 3 5.25C3 6.9075 5.685 8.25 9 8.25C12.315 8.25 15 6.9075 15 5.25C15 3.5925 12.315 2.25 9 2.25ZM15.75 8.3475C15.6375 8.3475 15.5325 8.3925 15.4575 8.475L14.7075 9.225L16.245 10.725L16.995 9.975C17.1525 9.825 17.16 9.57 16.995 9.3975L16.065 8.475C15.99 8.3925 15.885 8.3475 15.78 8.3475H15.75ZM14.28 9.66L9.75 14.205V15.75H11.295L15.84 11.1975L14.28 9.66Z"
       fill="#A2B1C6"
     />
   </svg>
-  <span class="icon-tooltip" :style="tooltipStyle">
-    Change database
+  <span class="icon-tooltip" :style="tooltipStyle" ref="tooltip">
+    Load another database or CSV
   </span>
 </div>
 </template>
 
 <script>
-import tooltipMixin from '@/mixins/tooltips'
+import tooltipMixin from '@/tooltipMixin'
 
 export default {
   name: 'changeDbIcon',
-  mixins: [tooltipMixin]
+  mixins: [tooltipMixin],
+  methods: {
+    onClick () {
+      this.hideTooltip()
+      this.$emit('click')
+    }
+  }
 }
 </script>
 

src/components/svg/chart.vue

@@ -0,0 +1,22 @@
+<template>
+  <svg
+    width="18"
+    height="18"
+    viewBox="0 0 18 18"
+    fill="none"
+  >
+    <path fill-rule="evenodd" clip-rule="evenodd" d="M8.41943 16V10H10.4194V16H8.41943Z" fill="#A2B1C6"/>
+    <path fill-rule="evenodd" clip-rule="evenodd" d="M2.41943 16L2.41943 10H4.41943V16H2.41943Z" fill="#A2B1C6"/>
+    <path fill-rule="evenodd" clip-rule="evenodd" d="M11.4194 16V7H13.4194V16H11.4194Z" fill="#A2B1C6"/>
+    <path fill-rule="evenodd" clip-rule="evenodd" d="M14.4194 16V8H16.4194V16H14.4194Z" fill="#A2B1C6"/>
+    <path fill-rule="evenodd" clip-rule="evenodd" d="M7.41943 12V16H5.41943V12H7.41943Z" fill="#A2B1C6"/>
+    <path fill-rule="evenodd" clip-rule="evenodd" d="M12.4332 1.80676L16.6265 6.00001L15.9194 6.70712L12.4055 3.19326L5.93169 9.1691L1.71436 5.55424L2.36515 4.79499L5.90707 7.83092L12.4332 1.80676Z" fill="#A2B1C6"/>
+  </svg>
+</template>
+
+<script>
+
+export default {
+  name: 'ChartIcon'
+}
+</script>

src/components/svg/dataView.vue

@@ -0,0 +1,19 @@
+<template>
+  <svg
+    width="18"
+    height="18"
+    viewBox="0 0 18 18"
+    fill="none"
+  >
+    <path fill-rule="evenodd" clip-rule="evenodd" d="M13.5552 6.91522C13.7584 6.91357 13.9535 6.99442 14.096 7.13926L17.2582 10.3541C17.5486 10.6494 17.5447 11.1242 17.2494 11.4147C16.9541 11.7051 16.4793 11.7012 16.1888 11.4059L13.57 8.74357L9.29577 13.2318C9.01977 13.5216 8.56484 13.5436 8.2621 13.2819L5.35435 10.7677L2.03285 13.7321C1.72382 14.0079 1.24971 13.981 0.973901 13.6719C0.69809 13.3629 0.725022 12.8888 1.03406 12.613L4.8471 9.20986C5.12827 8.95892 5.55198 8.95559 5.83705 9.20208L8.70249 11.6797L13.0182 7.14796C13.1583 7.00084 13.3521 6.91686 13.5552 6.91522Z" fill="#A2B1C6"/>
+    <circle cx="5.50049" cy="6.00339" r="1.5" fill="#A2B1C6"/>
+    <path fill-rule="evenodd" clip-rule="evenodd" d="M16.036 1.21788L1.96546 1.213C1.14046 1.213 0.465462 1.888 0.465462 2.713L0.464111 15.2821C0.464111 16.1071 1.13911 16.7821 1.96411 16.7821L16.0347 16.787C16.8674 16.787 17.5347 16.1121 17.5347 15.287L17.536 2.71788C17.536 1.88787 16.866 1.21788 16.036 1.21788ZM16.0374 2.71788L1.96424 2.713L1.96289 15.2773L16.036 15.2821L16.0374 2.71788Z" fill="#A2B1C6"/>
+</svg>
+</template>
+
+<script>
+
+export default {
+  name: 'DataViewIcon'
+}
+</script>

src/components/svg/export.vue

@@ -6,35 +6,42 @@
       height="18"
       viewBox="0 0 18 18"
       fill="none"
-      xmlns="http://www.w3.org/2000/svg"
-      @click.stop="$emit('click')"
-      @mouseover="showTooltip"
-      @mouseout="hideTooltip"
+      @click.stop="onClick"
+      @mouseenter="showTooltip($event, tooltipPosition)"
+      @mouseleave="hideTooltip"
     >
       <path
         d="M10.5 1.5H4.5C3.675 1.5 3 2.175 3 3V15C3 15.825 3.675 16.5 4.5 16.5H13.5C14.325 16.5 15 15.825 15 15V6L10.5 1.5ZM13.5 15H4.5V3H9.75V6.75H13.5V15ZM12 8.25V13.575L10.425 12L8.325 14.1L6.225 12L8.325 9.9L6.675 8.25H12Z"
         fill="#A2B1C6"
       />
-  </svg>
-  <span class="icon-tooltip" :style="tooltipStyle">
-    Export query to file
-  </span>
+    </svg>
+    <span class="icon-tooltip" :style="tooltipStyle" ref="tooltip">
+      {{ tooltip }}
+    </span>
   </span>
 </template>
 
 <script>
-import tooltipMixin from '@/mixins/tooltips'
+import tooltipMixin from '@/tooltipMixin'
 
 export default {
   name: 'ExportIcon',
-  mixins: [tooltipMixin]
+  mixins: [tooltipMixin],
+  props: ['tooltip', 'tooltipPosition'],
+  methods: {
+    onClick () {
+      this.hideTooltip()
+      this.$emit('click')
+    }
+  }
 }
 </script>
 
 <style scoped>
 .icon {
-  vertical-align: middle;
+  display: block;
   margin: 0 12px;
+  cursor: pointer;
 }
 
 .icon:hover path {

src/components/svg/hint.vue

@@ -6,26 +6,32 @@
       height="20"
       viewBox="0 0 20 20"
       fill="none"
-      xmlns="http://www.w3.org/2000/svg"
-      @mouseover="showTooltip"
-      @mouseout="hideTooltip"
+      @click.stop="onClick"
+      @mouseenter="showTooltip"
+      @mouseleave="hideTooltip"
     >
       <path d="M8.75 14.1666H10.4167V12.5H8.75V14.1666ZM9.58333 16.25C5.90833 16.25 2.91667 13.2583 2.91667 9.58333C2.91667 5.90833 5.90833 2.91667 9.58333 2.91667C13.2583 2.91667 16.25 5.90833 16.25 9.58333C16.25 13.2583 13.2583 16.25 9.58333 16.25ZM9.58333 1.25C8.48898 1.25 7.40535 1.46555 6.3943 1.88434C5.38326 2.30313 4.4646 2.91696 3.69078 3.69078C2.12797 5.25358 1.25 7.3732 1.25 9.58333C1.25 11.7935 2.12797 13.9131 3.69078 15.4759C4.4646 16.2497 5.38326 16.8635 6.3943 17.2823C7.40535 17.7011 8.48898 17.9167 9.58333 17.9167C11.7935 17.9167 13.9131 17.0387 15.4759 15.4759C17.0387 13.9131 17.9167 11.7935 17.9167 9.58333C17.9167 8.48898 17.7011 7.40535 17.2823 6.3943C16.8635 5.38326 16.2497 4.4646 15.4759 3.69078C14.7021 2.91696 13.7834 2.30313 12.7724 1.88434C11.7613 1.46555 10.6777 1.25 9.58333 1.25Z" fill="#A2B1C6"/>
       <path d="M9.91601 4.51787C8.98167 4.42606 8.05144 4.69097 7.36309 5.24472C6.68735 5.78828 6.2998 6.56661 6.2998 7.38012H7.92488C7.92488 6.97463 8.11059 6.60187 8.44779 6.33061C8.79784 6.049 9.25647 5.92005 9.73896 5.96755C10.4832 6.04076 11.0828 6.57277 11.1647 7.23265C11.2306 7.764 10.9661 8.28194 10.4744 8.58426C9.38676 9.25303 8.73742 10.343 8.73742 11.5H10.3625C10.3625 10.8243 10.7477 10.184 11.3929 9.78733C12.3808 9.17985 12.9122 8.13913 12.7798 7.07124C12.6144 5.73863 11.41 4.66476 9.91601 4.51787Z" fill="#A2B1C6"/>
     </svg>
-    <span class="icon-tooltip" :style="{...tooltipStyle, maxWidth: maxWidth }">
+    <span class="icon-tooltip" :style="{...tooltipStyle, maxWidth: maxWidth }" ref="tooltip">
       {{ hint }}
     </span>
   </div>
 </template>
 
 <script>
-import tooltipMixin from '@/mixins/tooltips'
+import tooltipMixin from '@/tooltipMixin'
 
 export default {
   name: 'HintIcon',
   props: ['hint', 'maxWidth'],
-  mixins: [tooltipMixin]
+  mixins: [tooltipMixin],
+  methods: {
+    onClick () {
+      this.hideTooltip()
+      this.$emit('click')
+    }
+  }
 }
 </script>
 

src/components/svg/pivot.vue

@@ -0,0 +1,20 @@
+<template>
+  <svg
+    width="18"
+    height="18"
+    viewBox="0 0 18 18"
+    fill="none"
+  >
+    <path fill-rule="evenodd" clip-rule="evenodd" d="M15.7661 5.13901L18.3407 9.43008H16.5161V12.8467C16.5161 13.7957 16.2783 14.6451 15.6714 15.2521C15.0645 15.859 14.215 16.0967 13.2661 16.0967H9.84942V17.9214L5.55835 15.3467L9.84942 12.7721V14.5967H13.2661C13.9838 14.5967 14.3844 14.4178 14.6108 14.1914C14.8372 13.965 15.0161 13.5645 15.0161 12.8467V9.43008H13.1914L15.7661 5.13901Z" fill="#A2B1C6"/>
+    <path d="M6.41943 0H18.4194V4H6.41943V0Z" fill="#A2B1C6"/>
+    <path d="M0.419434 6H4.41943V18H0.419434V6Z" fill="#A2B1C6"/>
+    <path d="M0.419434 0H4.41943V4H0.419434V0Z" fill="#A2B1C6"/>
+  </svg>
+</template>
+
+<script>
+
+export default {
+  name: 'PivotIcon'
+}
+</script>

src/components/svg/png.svg

@@ -0,0 +1,5 @@
+<svg width="18" height="18" viewBox="0 0 18 18" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M9 5.51953C6.57686 5.51953 4.60547 7.49092 4.60547 9.91406C4.60547 12.3372 6.57686 14.3086 9 14.3086C11.4231 14.3086 13.3945 12.3372 13.3945 9.91406C13.3945 7.49092 11.4231 5.51953 9 5.51953ZM9 12.9023C7.35226 12.9023 6.01172 11.5618 6.01172 9.91406C6.01172 8.26632 7.35226 6.92578 9 6.92578C10.6477 6.92578 11.9883 8.26632 11.9883 9.91406C11.9883 11.5618 10.6477 12.9023 9 12.9023Z" fill="#A2B1C6"/>
+<path d="M15.8906 3.41016H13.304C13.2221 3.41016 13.1483 3.36547 13.1104 3.29319L12.3948 1.78945C12.3928 1.78534 12.3908 1.78126 12.3887 1.77718C12.1117 1.22312 11.5548 0.878906 10.9353 0.878906H7.11478C6.49529 0.878906 5.93835 1.22312 5.66135 1.77722C5.65928 1.7813 5.65731 1.78538 5.65534 1.78949L4.9397 3.2933C4.90173 3.36547 4.82797 3.41016 4.74609 3.41016H2.10938C0.946266 3.41016 0 4.35642 0 5.51953V15.0117C0 16.1748 0.946266 17.1211 2.10938 17.1211H15.8906C17.0537 17.1211 18 16.1748 18 15.0117V5.51953C18 4.35642 17.0537 3.41016 15.8906 3.41016ZM16.5938 15.0117C16.5938 15.3994 16.2783 15.7148 15.8906 15.7148H2.10938C1.72167 15.7148 1.40625 15.3994 1.40625 15.0117V5.51953C1.40625 5.13183 1.72167 4.81641 2.10938 4.81641H4.74609C5.36555 4.81641 5.92249 4.47223 6.19952 3.91816C6.2016 3.91409 6.20357 3.90997 6.20557 3.90586L6.92121 2.40205C6.95914 2.32984 7.0329 2.28516 7.11478 2.28516H10.9353C11.0172 2.28516 11.091 2.32984 11.1289 2.40202L11.8445 3.90582C11.8465 3.90994 11.8485 3.91405 11.8506 3.91813C12.1276 4.47219 12.6846 4.81637 13.304 4.81637H15.8906C16.2783 4.81637 16.5938 5.13179 16.5938 5.5195V15.0117Z" fill="#A2B1C6"/>
+<path d="M15.1875 6.22266H13.7812V7.62891H15.1875V6.22266Z" fill="#A2B1C6"/>
+</svg>

src/components/svg/png.vue

@@ -0,0 +1,18 @@
+<template>
+  <svg
+    width="18"
+    height="18"
+    viewBox="0 0 18 18"
+    fill="none"
+  >
+    <path d="M9 5.51953C6.57686 5.51953 4.60547 7.49092 4.60547 9.91406C4.60547 12.3372 6.57686 14.3086 9 14.3086C11.4231 14.3086 13.3945 12.3372 13.3945 9.91406C13.3945 7.49092 11.4231 5.51953 9 5.51953ZM9 12.9023C7.35226 12.9023 6.01172 11.5618 6.01172 9.91406C6.01172 8.26632 7.35226 6.92578 9 6.92578C10.6477 6.92578 11.9883 8.26632 11.9883 9.91406C11.9883 11.5618 10.6477 12.9023 9 12.9023Z" fill="#A2B1C6"/>
+    <path d="M15.8906 3.41016H13.304C13.2221 3.41016 13.1483 3.36547 13.1104 3.29319L12.3948 1.78945C12.3928 1.78534 12.3908 1.78126 12.3887 1.77718C12.1117 1.22312 11.5548 0.878906 10.9353 0.878906H7.11478C6.49529 0.878906 5.93835 1.22312 5.66135 1.77722C5.65928 1.7813 5.65731 1.78538 5.65534 1.78949L4.9397 3.2933C4.90173 3.36547 4.82797 3.41016 4.74609 3.41016H2.10938C0.946266 3.41016 0 4.35642 0 5.51953V15.0117C0 16.1748 0.946266 17.1211 2.10938 17.1211H15.8906C17.0537 17.1211 18 16.1748 18 15.0117V5.51953C18 4.35642 17.0537 3.41016 15.8906 3.41016ZM16.5938 15.0117C16.5938 15.3994 16.2783 15.7148 15.8906 15.7148H2.10938C1.72167 15.7148 1.40625 15.3994 1.40625 15.0117V5.51953C1.40625 5.13183 1.72167 4.81641 2.10938 4.81641H4.74609C5.36555 4.81641 5.92249 4.47223 6.19952 3.91816C6.2016 3.91409 6.20357 3.90997 6.20557 3.90586L6.92121 2.40205C6.95914 2.32984 7.0329 2.28516 7.11478 2.28516H10.9353C11.0172 2.28516 11.091 2.32984 11.1289 2.40202L11.8445 3.90582C11.8465 3.90994 11.8485 3.91405 11.8506 3.91813C12.1276 4.47219 12.6846 4.81637 13.304 4.81637H15.8906C16.2783 4.81637 16.5938 5.13179 16.5938 5.5195V15.0117Z" fill="#A2B1C6"/>
+    <path d="M15.1875 6.22266H13.7812V7.62891H15.1875V6.22266Z" fill="#A2B1C6"/>
+  </svg>
+</template>
+
+<script>
+export default {
+  name: 'PngIcon'
+}
+</script>

src/components/svg/run.vue

@@ -0,0 +1,17 @@
+<template>
+  <svg
+    width="12"
+    height="13"
+    viewBox="0 0 12 13"
+    fill="none"
+  >
+    <path d="M11.1624 6.94358L0.770043 12.9436L0.770043 0.943573L11.1624 6.94358Z" fill="#A2B1C6"/>
+  </svg>
+</template>
+
+<script>
+
+export default {
+  name: 'RunIcon'
+}
+</script>

src/components/svg/sort.vue

@@ -0,0 +1,45 @@
+<template>
+  <svg
+    :class="['sort-icon', { horizontal }, { asc }]"
+    width="6"
+    height="12"
+    viewBox="0 0 6 12"
+    fill="none"
+  >
+    <path d="M2.99932 -3.63032e-05C2.75092 -3.63032e-05 2.54932 0.201563 2.54932 0.449964L2.54932 11.55C2.54932 11.7984 2.75092 12 2.99932 12C3.24772 12 3.44932 11.7984 3.44932 11.55L3.44932 0.449964C3.44932 0.201563 3.24772 -3.63032e-05 2.99932 -3.63032e-05Z" fill="#506784"/>
+    <path d="M2.99915 1.80492e-05C2.8839 1.80492e-05 2.76865 0.0438534 2.68109 0.132073L0.581055 2.232C0.405273 2.40789 0.405273 2.69287 0.581055 2.86865C0.756946 3.04443 1.04193 3.04443 1.21771 2.86865L2.99969 1.08667L4.78168 2.86865C4.95746 3.04443 5.24255 3.04443 5.41833 2.86865C5.59412 2.69287 5.59412 2.40789 5.41833 2.232L3.3183 0.132073C3.22953 0.0438534 3.11428 1.80492e-05 2.99915 1.80492e-05V1.80492e-05Z" fill="#506784"/>
+  </svg>
+</template>
+
+<script>
+
+export default {
+  name: 'SortIcon',
+  props: {
+    horizontal: {
+      type: Boolean,
+      required: false,
+      default: false
+    },
+    asc: {
+      type: Boolean,
+      required: false,
+      default: true
+    }
+  }
+}
+</script>
+
+<style scoped>
+svg.asc {
+  transform: rotate(180deg);
+}
+
+svg.horizontal {
+  transform: rotate(-90deg);
+}
+
+svg.horizontal.asc {
+  transform: rotate(90deg);
+}
+</style>

src/components/svg/sqlEditor.vue

@@ -0,0 +1,25 @@
+<template>
+  <svg
+    width="18"
+    height="19"
+    viewBox="0 0 18 19"
+    fill="none"
+  >
+    <g clip-path="url(#clip0)">
+      <path d="M4.5 1.51343H10.5L15 6.01343V8.45284H13.5V6.76343H9.75V3.01343H4.5V8.45284H3V3.01343C3 2.18843 3.675 1.51343 4.5 1.51343Z" fill="#A2B1C6"/>
+      <path d="M4.28369 14.8127C4.28369 14.5872 4.20312 14.4114 4.04199 14.2854C3.88379 14.1594 3.604 14.0291 3.20264 13.8943C2.80127 13.7595 2.47314 13.6292 2.21826 13.5032C1.38916 13.0959 0.974609 12.5364 0.974609 11.8245C0.974609 11.47 1.07715 11.158 1.28223 10.8884C1.49023 10.616 1.7832 10.405 2.16113 10.2556C2.53906 10.1033 2.96387 10.0271 3.43555 10.0271C3.89551 10.0271 4.30713 10.1091 4.67041 10.2732C5.03662 10.4373 5.3208 10.6716 5.52295 10.9763C5.7251 11.2781 5.82617 11.6238 5.82617 12.0134H4.28809C4.28809 11.7527 4.20752 11.5505 4.04639 11.407C3.88818 11.2634 3.67285 11.1917 3.40039 11.1917C3.125 11.1917 2.90674 11.2532 2.74561 11.3762C2.5874 11.4963 2.5083 11.6501 2.5083 11.8376C2.5083 12.0017 2.59619 12.1511 2.77197 12.2859C2.94775 12.4177 3.25684 12.5554 3.69922 12.699C4.1416 12.8396 4.50488 12.9919 4.78906 13.156C5.48047 13.5544 5.82617 14.1038 5.82617 14.804C5.82617 15.3635 5.61523 15.803 5.19336 16.1223C4.77148 16.4417 4.19287 16.6013 3.45752 16.6013C2.93896 16.6013 2.46875 16.509 2.04688 16.3245C1.62793 16.137 1.31152 15.8821 1.09766 15.5598C0.886719 15.2346 0.78125 14.8611 0.78125 14.4392H2.32812C2.32812 14.782 2.41602 15.0354 2.5918 15.1995C2.77051 15.3606 3.05908 15.4412 3.45752 15.4412C3.7124 15.4412 3.91309 15.387 4.05957 15.2786C4.20898 15.1672 4.28369 15.012 4.28369 14.8127ZM12.0444 13.446C12.0444 14.0378 11.9463 14.5549 11.75 14.9973C11.5537 15.4368 11.2827 15.7898 10.937 16.0564L11.9697 16.8738L11.0161 17.6824L9.64062 16.575C9.51172 16.5925 9.38281 16.6013 9.25391 16.6013C8.70898 16.6013 8.22559 16.4753 7.80371 16.2234C7.38184 15.9714 7.05225 15.6111 6.81494 15.1423C6.58057 14.6736 6.45898 14.1345 6.4502 13.5251V13.1868C6.4502 12.5569 6.56445 12.0032 6.79297 11.5256C7.02441 11.0481 7.35254 10.679 7.77734 10.4182C8.20508 10.1575 8.69434 10.0271 9.24512 10.0271C9.78711 10.0271 10.2705 10.156 10.6953 10.4138C11.1201 10.6716 11.4497 11.0393 11.6841 11.5168C11.9214 11.9915 12.0415 12.5364 12.0444 13.1516V13.446ZM10.4756 13.178C10.4756 12.5422 10.3687 12.0603 10.1548 11.7322C9.94385 11.4011 9.64062 11.2356 9.24512 11.2356C8.83789 11.2356 8.53174 11.3982 8.32666 11.7234C8.12158 12.0486 8.01758 12.5247 8.01465 13.1516V13.446C8.01465 14.0759 8.11865 14.5593 8.32666 14.8962C8.53467 15.2302 8.84375 15.3972 9.25391 15.3972C9.64648 15.3972 9.94678 15.2317 10.1548 14.9006C10.3657 14.5696 10.4727 14.0935 10.4756 13.4724V13.178ZM14.3735 15.3269H17.0586V16.5134H12.8311V10.115H14.3735V15.3269Z" fill="#A2B1C6"/>
+    </g>
+    <defs>
+      <clipPath id="clip0">
+        <rect width="18" height="18" fill="white" transform="translate(0 0.0134277)"/>
+      </clipPath>
+    </defs>
+  </svg>
+</template>
+
+<script>
+
+export default {
+  name: 'SqlEditorIcon'
+}
+</script>

src/components/svg/table.vue

@@ -0,0 +1,21 @@
+<template>
+  <svg
+    width="18"
+    height="18"
+    viewBox="0 0 18 18"
+    fill="none"
+  >
+    <path fill-rule="evenodd" clip-rule="evenodd" d="M14.5 2.16512L3.5 2.16999C2.675 2.16999 2 2.84499 2 3.66999V14.3349C2 15.1599 2.675 15.8349 3.5 15.8349L14.5 15.83C15.3327 15.83 16 15.1551 16 14.33V3.66512C16 2.83511 15.33 2.16512 14.5 2.16512ZM14.5014 3.66512L3.49878 3.66999V14.33L14.5014 14.3251V3.66512Z" fill="#A2B1C6"/>
+    <path fill-rule="evenodd" clip-rule="evenodd" d="M6.27319 14.7069L6.27319 3.32135L7.77319 3.32135L7.77319 14.7069L6.27319 14.7069Z" fill="#A2B1C6"/>
+    <path fill-rule="evenodd" clip-rule="evenodd" d="M10.2639 14.6932L10.2639 3.30772L11.7639 3.30772L11.7639 14.6932L10.2639 14.6932Z" fill="#A2B1C6"/>
+    <path fill-rule="evenodd" clip-rule="evenodd" d="M15.5108 7.48325H2.4895V5.98325H15.5108V7.48325Z" fill="#A2B1C6"/>
+    <path fill-rule="evenodd" clip-rule="evenodd" d="M15.5108 11.6056H2.4895V10.1056H15.5108V11.6056Z" fill="#A2B1C6"/>
+  </svg>
+</template>
+
+<script>
+
+export default {
+  name: 'TableIcon'
+}
+</script>

src/database.js

@@ -1,155 +0,0 @@
-import sqliteParser from 'sqlite-parser'
-import fu from '@/file.utils'
-// We can import workers like so because of worker-loader:
-// https://webpack.js.org/loaders/worker-loader/
-import Worker from '@/db.worker.js'
-
-// Use promise-worker in order to turn worker into the promise based one:
-// https://github.com/nolanlawson/promise-worker
-import PromiseWorker from 'promise-worker'
-
-function getNewDatabase () {
-  const worker = new Worker()
-  return new Database(worker)
-}
-
-export default {
-  getNewDatabase
-}
-
-let progressCounterIds = 0
-class Database {
-  constructor (worker) {
-    this.worker = worker
-    this.pw = new PromiseWorker(worker)
-
-    this.importProgresses = {}
-    worker.addEventListener('message', e => {
-      const progress = e.data.progress
-      if (progress !== undefined) {
-        const id = e.data.id
-        this.importProgresses[id].dispatchEvent(new CustomEvent('progress', {
-          detail: progress
-        }))
-      }
-    })
-  }
-
-  shutDown () {
-    this.worker.terminate()
-  }
-
-  createProgressCounter (callback) {
-    const id = progressCounterIds++
-    this.importProgresses[id] = new EventTarget()
-    this.importProgresses[id].addEventListener('progress', e => { callback(e.detail) })
-    return id
-  }
-
-  deleteProgressCounter (id) {
-    delete this.importProgresses[id]
-  }
-
-  async createDb (name, data, progressCounterId) {
-    const result = await this.pw.postMessage({
-      action: 'import',
-      columns: data.columns,
-      values: data.values,
-      progressCounterId
-    })
-
-    if (result.error) {
-      throw result.error
-    }
-
-    return await this.getSchema(name)
-  }
-
-  async loadDb (file) {
-    const fileContent = await fu.readAsArrayBuffer(file)
-    const res = await this.pw.postMessage({ action: 'open', buffer: fileContent })
-
-    if (res.error) {
-      throw res.error
-    }
-
-    return this.getSchema(file.name)
-  }
-
-  async getSchema (name) {
-    const getSchemaSql = `
-      SELECT name, sql
-      FROM sqlite_master
-      WHERE type='table' AND name NOT LIKE 'sqlite_%';
-    `
-    const result = await this.execute(getSchemaSql)
-    // Parse DDL statements to get column names and types
-    const parsedSchema = []
-    result.values.forEach(item => {
-      parsedSchema.push({
-        name: item[0],
-        columns: getColumns(item[1])
-      })
-    })
-
-    // Return db name and schema
-    return {
-      dbName: name,
-      schema: parsedSchema
-    }
-  }
-
-  async execute (commands) {
-    const results = await this.pw.postMessage({ action: 'exec', sql: commands })
-
-    if (results.error) {
-      throw results.error
-    }
-    // if it was more than one select - take only the last one
-    return results[results.length - 1]
-  }
-}
-
-function getAst (sql) {
-  // There is a bug is sqlite-parser
-  // It throws an error if tokenizer has an arguments:
-  // https://github.com/codeschool/sqlite-parser/issues/59
-  const fixedSql = sql
-    .replace(/(?<=tokenize=.+)"tokenchars=.+"/, '')
-    .replace(/(?<=tokenize=.+)"remove_diacritics=.+"/, '')
-    .replace(/(?<=tokenize=.+)"separators=.+"/, '')
-    .replace(/tokenize=.+(?=(,|\)))/, 'tokenize=unicode61')
-
-  return sqliteParser(fixedSql)
-}
-
-/*
- * Return an array of columns with name and type. E.g.:
- * [
- *   { name: 'id',    type: 'INTEGER' },
- *   { name: 'title', type: 'NVARCHAR(30)' },
- * ]
-*/
-function getColumns (sql) {
-  const columns = []
-  const ast = getAst(sql)
-
-  const columnDefinition = ast.statement[0].format === 'table'
-    ? ast.statement[0].definition
-    : ast.statement[0].result.args.expression // virtual table
-
-  columnDefinition.forEach(item => {
-    if (item.variant === 'column' && ['identifier', 'definition'].includes(item.type)) {
-      let type = item.datatype ? item.datatype.variant : 'N/A'
-      if (item.datatype && item.datatype.args) {
-        type = type + '(' + item.datatype.args.expression[0].value
-        if (item.datatype.args.expression.length === 2) {
-          type = type + ', ' + item.datatype.args.expression[1].value
-        }
-        type = type + ')'
-      }
-      columns.push({ name: item.name, type: type })
-    }
-  })
-  return columns
-}

src/db.utils.js

@@ -1,44 +0,0 @@
-export default {
-  * generateChunks (arr, size) {
-    const count = Math.ceil(arr.length / size)
-
-    for (let i = 0; i <= count - 1; i++) {
-      const start = size * i
-      const end = start + size
-      yield arr.slice(start, end)
-    }
-  },
-
-  getInsertStmt (columns) {
-    const colList = `"${columns.join('", "')}"`
-    const params = columns.map(() => '?').join(', ')
-    return `INSERT INTO csv_import (${colList}) VALUES (${params});`
-  },
-
-  getCreateStatement (columns, values) {
-    let result = 'CREATE table csv_import('
-    columns.forEach((col, index) => {
-    // Get the first row of values to determine types
-      const value = values[0][index]
-      let type = ''
-      switch (typeof value) {
-        case 'number': {
-          type = 'REAL'
-          break
-        }
-        case 'boolean': {
-          type = 'INTEGER'
-          break
-        }
-        case 'string': {
-          type = 'TEXT'
-          break
-        }
-        default: type = 'TEXT'
-      }
-      result += `"${col}" ${type}, `
-    })
-    result = result.replace(/,\s$/, ');')
-    return result
-  }
-}

src/lib/database/_sql.js

@@ -1,9 +1,20 @@
 import initSqlJs from 'sql.js/dist/sql-wasm.js'
-import dbUtils from '@/db.utils'
+import dbUtils from './_statements'
 
 let SQL = null
 const sqlModuleReady = initSqlJs().then(sqlModule => { SQL = sqlModule })
 
+function _getDataSourcesFromSqlResult (sqlResult) {
+  if (!sqlResult) {
+    return {}
+  }
+  const dataSorces = {}
+  sqlResult.columns.forEach((column, index) => {
+    dataSorces[column] = sqlResult.values.map(row => row[index])
+  })
+  return dataSorces
+}
+
 export default class Sql {
   constructor () {
     this.db = null
@@ -36,16 +47,21 @@ export default class Sql {
     if (!sql) {
       throw new Error('exec: Missing query string')
     }
-    return this.db.exec(sql, params)
+    const sqlResults = this.db.exec(sql, params)
+    return sqlResults.map(result => _getDataSourcesFromSqlResult(result))
   }
 
-  import (columns, values, progressCounterId, progressCallback, chunkSize = 1500) {
-    this.createDb()
-    this.db.exec(dbUtils.getCreateStatement(columns, values))
-    const chunks = dbUtils.generateChunks(values, chunkSize)
-    const chunksAmount = Math.ceil(values.length / chunkSize)
+  import (tabName, data, progressCounterId, progressCallback, chunkSize = 1500) {
+    if (this.db === null) {
+      this.createDb()
+    }
+    const columns = Object.keys(data)
+    const rowCount = data[columns[0]].length
+    this.db.exec(dbUtils.getCreateStatement(tabName, data))
+    const chunks = dbUtils.generateChunks(data, chunkSize)
+    const chunksAmount = Math.ceil(rowCount / chunkSize)
     let count = 0
-    const insertStr = dbUtils.getInsertStmt(columns)
+    const insertStr = dbUtils.getInsertStmt(tabName, columns)
     const insertStmt = this.db.prepare(insertStr)
 
     progressCallback({ progress: 0, id: progressCounterId })

src/lib/database/_statements.js

@@ -0,0 +1,95 @@
+import sqliteParser from 'sqlite-parser'
+
+export default {
+  * generateChunks (data, size) {
+    const matrix = Object.keys(data).map(col => data[col])
+    const [row] = matrix
+    const transposedMatrix = row.map((value, column) => matrix.map(row => row[column]))
+
+    const count = Math.ceil(transposedMatrix.length / size)
+
+    for (let i = 0; i <= count - 1; i++) {
+      const start = size * i
+      const end = start + size
+      yield transposedMatrix.slice(start, end)
+    }
+  },
+
+  getInsertStmt (tabName, columns) {
+    const colList = `"${columns.join('", "')}"`
+    const params = columns.map(() => '?').join(', ')
+    return `INSERT INTO "${tabName}" (${colList}) VALUES (${params});`
+  },
+
+  getCreateStatement (tabName, data) {
+    let result = `CREATE table "${tabName}"(`
+    for (const col in data) {
+      // Get the first row of values to determine types
+      const value = data[col][0]
+      let type = ''
+      switch (typeof value) {
+        case 'number': {
+          type = 'REAL'
+          break
+        }
+        case 'boolean': {
+          type = 'INTEGER'
+          break
+        }
+        case 'string': {
+          type = 'TEXT'
+          break
+        }
+        default: type = 'TEXT'
+      }
+      result += `"${col}" ${type}, `
+    }
+
+    result = result.replace(/,\s$/, ');')
+    return result
+  },
+
+  getAst (sql) {
+    // There is a bug is sqlite-parser
+    // It throws an error if tokenizer has an arguments:
+    // https://github.com/codeschool/sqlite-parser/issues/59
+    const fixedSql = sql
+      .replace(/(tokenize=[^,]+)"tokenchars=.+?"/, '$1')
+      .replace(/(tokenize=[^,]+)"remove_diacritics=.+?"/, '$1')
+      .replace(/(tokenize=[^,]+)"separators=.+?"/, '$1')
+      .replace(/tokenize=.+?(,|\))/, 'tokenize=unicode61$1')
+
+    return sqliteParser(fixedSql)
+  },
+
+  /*
+   * Return an array of columns with name and type. E.g.:
+   * [
+   *   { name: 'id',    type: 'INTEGER' },
+   *   { name: 'title', type: 'NVARCHAR(30)' },
+   * ]
+  */
+  getColumns (sql) {
+    const columns = []
+    const ast = this.getAst(sql)
+
+    const columnDefinition = ast.statement[0].format === 'table'
+      ? ast.statement[0].definition
+      : ast.statement[0].result.args.expression // virtual table
+
+    columnDefinition.forEach(item => {
+      if (item.variant === 'column' && ['identifier', 'definition'].includes(item.type)) {
+        let type = item.datatype ? item.datatype.variant : 'N/A'
+        if (item.datatype && item.datatype.args) {
+          type = type + '(' + item.datatype.args.expression[0].value
+          if (item.datatype.args.expression.length === 2) {
+            type = type + ', ' + item.datatype.args.expression[1].value
+          }
+          type = type + ')'
+        }
+        columns.push({ name: item.name, type: type })
+      }
+    })
+    return columns
+  }
+}

src/lib/database/_worker.js

@@ -1,5 +1,5 @@
 import registerPromiseWorker from 'promise-worker/register'
-import Sql from '@/sql'
+import Sql from './_sql'
 
 const sqlReady = Sql.build()
 
@@ -8,10 +8,17 @@ function processMsg (sql) {
   switch (data && data.action) {
     case 'open':
       return sql.open(data.buffer)
+    case 'reopen':
+      return sql.open(sql.export())
     case 'exec':
       return sql.exec(data.sql, data.params)
     case 'import':
-      return sql.import(data.columns, data.values, data.progressCounterId, postMessage)
+      return sql.import(
+        data.tabName,
+        data.data,
+        data.progressCounterId,
+        postMessage
+      )
     case 'export':
       return sql.export()
     case 'close':
@@ -23,7 +30,7 @@ function processMsg (sql) {
 
 function onError (error) {
   return {
-    error
+    error: error.message
   }
 }
 

src/lib/database/index.js

@@ -0,0 +1,146 @@
+import stms from './_statements'
+import fu from '@/lib/utils/fileIo'
+// We can import workers like so because of worker-loader:
+// https://webpack.js.org/loaders/worker-loader/
+import Worker from './_worker.js'
+
+// Use promise-worker in order to turn worker into the promise based one:
+// https://github.com/nolanlawson/promise-worker
+import PromiseWorker from 'promise-worker'
+
+function getNewDatabase () {
+  const worker = new Worker()
+  return new Database(worker)
+}
+
+export default {
+  getNewDatabase
+}
+
+let progressCounterIds = 0
+class Database {
+  constructor (worker) {
+    this.dbName = null
+    this.schema = null
+    this.worker = worker
+    this.pw = new PromiseWorker(worker)
+
+    this.importProgresses = {}
+    worker.addEventListener('message', e => {
+      const progress = e.data.progress
+      if (progress !== undefined) {
+        const id = e.data.id
+        this.importProgresses[id].dispatchEvent(new CustomEvent('progress', {
+          detail: progress
+        }))
+      }
+    })
+  }
+
+  shutDown () {
+    this.worker.terminate()
+  }
+
+  createProgressCounter (callback) {
+    const id = progressCounterIds++
+    this.importProgresses[id] = new EventTarget()
+    this.importProgresses[id].addEventListener('progress', e => { callback(e.detail) })
+    return id
+  }
+
+  deleteProgressCounter (id) {
+    delete this.importProgresses[id]
+  }
+
+  async addTableFromCsv (tabName, data, progressCounterId) {
+    const result = await this.pw.postMessage({
+      action: 'import',
+      data,
+      progressCounterId,
+      tabName
+    })
+
+    if (result.error) {
+      throw new Error(result.error)
+    }
+    this.dbName = this.dbName || 'database'
+    this.refreshSchema()
+  }
+
+  async loadDb (file) {
+    const fileContent = file ? await fu.readAsArrayBuffer(file) : null
+    const res = await this.pw.postMessage({ action: 'open', buffer: fileContent })
+
+    if (res.error) {
+      throw new Error(res.error)
+    }
+
+    this.dbName = file ? fu.getFileName(file) : 'database'
+    this.refreshSchema()
+  }
+
+  async refreshSchema () {
+    const getSchemaSql = `
+      SELECT name, sql
+      FROM sqlite_master
+      WHERE type='table' AND name NOT LIKE 'sqlite_%';
+    `
+    const result = await this.execute(getSchemaSql)
+    // Parse DDL statements to get column names and types
+    const parsedSchema = []
+    if (result && result.name) {
+      result.name.forEach((table, index) => {
+        parsedSchema.push({
+          name: table,
+          columns: stms.getColumns(result.sql[index])
+        })
+      })
+    }
+
+    // Refresh schema
+    this.schema = parsedSchema
+  }
+
+  async execute (commands) {
+    await this.pw.postMessage({ action: 'reopen' })
+    const results = await this.pw.postMessage({ action: 'exec', sql: commands })
+
+    if (results.error) {
+      throw new Error(results.error)
+    }
+    // if it was more than one select - take only the last one
+    return results[results.length - 1]
+  }
+
+  async export (fileName) {
+    const data = await this.pw.postMessage({ action: 'export' })
+
+    if (data.error) {
+      throw new Error(data.error)
+    }
+    fu.exportToFile(data, fileName)
+  }
+
+  async validateTableName (name) {
+    if (name.startsWith('sqlite_')) {
+      throw new Error("Table name can't start with sqlite_")
+    }
+
+    if (/[^\w]/.test(name)) {
+      throw new Error('Table name can contain only letters, digits and underscores')
+    }
+
+    if (/^(\d)/.test(name)) {
+      throw new Error("Table name can't start with a digit")
+    }
+
+    await this.execute(`BEGIN; CREATE TABLE "${name}"(id); ROLLBACK;`)
+  }
+
+  sanitizeTableName (tabName) {
+    return tabName
+      .replace(/[^\w]/g, '_') // replace everything that is not letter, digit or _  with _
+      .replace(/^(\d)/, '_$1') // add _ at beginning if starts with digit
+      .replace(/_{2,}/g, '_') // replace multiple _ with one _
+  }
+}

src/lib/storedInquiries/_migrations.js

@@ -0,0 +1,12 @@
+export default {
+  _migrate (installedVersion, inquiries) {
+    if (installedVersion === 1) {
+      inquiries.forEach(inquire => {
+        inquire.viewType = 'chart'
+        inquire.viewOptions = inquire.chart
+        delete inquire.chart
+      })
+      return inquiries
+    }
+  }
+}

src/lib/storedInquiries/index.js

@@ -0,0 +1,120 @@
+import { nanoid } from 'nanoid'
+import fu from '@/lib/utils/fileIo'
+import migration from './_migrations'
+
+const migrate = migration._migrate
+
+export default {
+  version: 2,
+  getStoredInquiries () {
+    let myInquiries = JSON.parse(localStorage.getItem('myInquiries'))
+    if (!myInquiries) {
+      const oldInquiries = localStorage.getItem('myQueries')
+      if (oldInquiries) {
+        myInquiries = migrate(1, JSON.parse(oldInquiries))
+        this.updateStorage(myInquiries)
+        return myInquiries
+      }
+      return []
+    }
+
+    return (myInquiries && myInquiries.inquiries) || []
+  },
+
+  duplicateInquiry (baseInquiry) {
+    const newInquiry = JSON.parse(JSON.stringify(baseInquiry))
+    newInquiry.name = newInquiry.name + ' Copy'
+    newInquiry.id = nanoid()
+    newInquiry.createdAt = new Date()
+    delete newInquiry.isPredefined
+
+    return newInquiry
+  },
+
+  isTabNeedName (inquiryTab) {
+    const isFromScratch = !inquiryTab.initName
+    return inquiryTab.isPredefined || isFromScratch
+  },
+
+  save (inquiryTab, newName) {
+    const value = {
+      id: inquiryTab.isPredefined ? nanoid() : inquiryTab.id,
+      query: inquiryTab.query,
+      viewType: inquiryTab.$refs.dataView.mode,
+      viewOptions: inquiryTab.$refs.dataView.getOptionsForSave(),
+      name: newName || inquiryTab.initName
+    }
+
+    // Get inquiries from local storage
+    const myInquiries = this.getStoredInquiries()
+
+    // Set createdAt
+    if (newName) {
+      value.createdAt = new Date()
+    } else {
+      var inquiryIndex = myInquiries.findIndex(oldInquiry => oldInquiry.id === inquiryTab.id)
+      value.createdAt = myInquiries[inquiryIndex].createdAt
+    }
+
+    // Insert in inquiries list
+    if (newName) {
+      myInquiries.push(value)
+    } else {
+      myInquiries[inquiryIndex] = value
+    }
+
+    // Save to local storage
+    this.updateStorage(myInquiries)
+    return value
+  },
+
+  updateStorage (inquiries) {
+    localStorage.setItem('myInquiries', JSON.stringify({ version: this.version, inquiries }))
+  },
+
+  serialiseInquiries (inquiryList) {
+    const preparedData = JSON.parse(JSON.stringify(inquiryList))
+    preparedData.forEach(inquiry => delete inquiry.isPredefined)
+    return JSON.stringify({ version: this.version, inquiries: preparedData }, null, 4)
+  },
+
+  deserialiseInquiries (str) {
+    const inquiries = JSON.parse(str)
+    let inquiryList = []
+    if (!inquiries.version) {
+      // Turn data into array if they are not
+      inquiryList = !Array.isArray(inquiries) ? [inquiries] : inquiries
+      inquiryList = migrate(1, inquiryList)
+    } else {
+      inquiryList = inquiries.inquiries || []
+    }
+
+    // Generate new ids if they are the same as existing inquiries
+    inquiryList.forEach(inquiry => {
+      const allInquiriesIds = this.getStoredInquiries().map(inquiry => inquiry.id)
+      if (allInquiriesIds.includes(inquiry.id)) {
+        inquiry.id = nanoid()
+      }
+    })
+
+    return inquiryList
+  },
+
+  importInquiries () {
+    return fu.importFile()
+      .then(str => {
+        return this.deserialiseInquiries(str)
+      })
+  },
+
+  async readPredefinedInquiries () {
+    const res = await fu.readFile('./inquiries.json')
+    const data = await res.json()
+
+    if (!data.version) {
+      return data.length > 0 ? migrate(1, data) : []
+    } else {
+      return data.inquiries
+    }
+  }
+}

src/lib/utils/fileIo.js

@@ -1,9 +1,18 @@
 export default {
-  exportToFile (str, fileName, type = 'octet/stream') {
+  isDatabase (file) {
+    const dbTypes = ['application/vnd.sqlite3', 'application/x-sqlite3']
+    return file.type
+      ? dbTypes.includes(file.type)
+      : /\.(db|sqlite(3)?)+$/.test(file.name)
+  },
+
+  getFileName (file) {
+    return file.name.replace(/\.[^.]+$/, '')
+  },
+
+  downloadFromUrl (url, fileName) {
     // Create downloader
     const downloader = document.createElement('a')
-    const blob = new Blob([str], { type })
-    const url = URL.createObjectURL(blob)
     downloader.href = url
     downloader.download = fileName
 
@@ -14,6 +23,12 @@ export default {
     URL.revokeObjectURL(url)
   },
 
+  async exportToFile (str, fileName, type = 'octet/stream') {
+    const blob = new Blob([str], { type })
+    const url = URL.createObjectURL(blob)
+    this.downloadFromUrl(url, fileName)
+  },
+
   /**
    * Note: if user press Cancel in file choosing dialog
    * it will be an unsettled promise. But it's grabbed by

src/lib/utils/time.js

@@ -0,0 +1,15 @@
+export default {
+  getPeriod (start, end) {
+    const diff = end.getTime() - start.getTime()
+    const seconds = diff / 1000
+    return seconds.toFixed(3) + 's'
+  },
+
+  debounce (func, ms) {
+    let timeout
+    return function () {
+      clearTimeout(timeout)
+      timeout = setTimeout(() => func.apply(this, arguments), ms)
+    }
+  }
+}

src/main.js

@@ -1,7 +1,7 @@
 import Vue from 'vue'
-import App from './App.vue'
-import router from './router'
-import store from './store'
+import App from '@/App.vue'
+import router from '@/router'
+import store from '@/store'
 import { VuePlugin } from 'vuera'
 import VModal from 'vue-js-modal'
 
@@ -11,6 +11,12 @@ import '@/assets/styles/tables.css'
 import '@/assets/styles/dialogs.css'
 import '@/assets/styles/tooltips.css'
 import '@/assets/styles/messages.css'
+import 'vue-multiselect/dist/vue-multiselect.min.css'
+import '@/assets/styles/multiselect.css'
+
+if (!['localhost', '127.0.0.1'].includes(location.hostname)) {
+  import('./registerServiceWorker') // eslint-disable-line no-unused-expressions
+}
 
 Vue.use(VuePlugin)
 Vue.use(VModal)

src/mixins/tooltips.js

@@ -1,19 +0,0 @@
-export default {
-  data () {
-    return {
-      tooltipStyle: {
-        visibility: 'hidden'
-      }
-    }
-  },
-  methods: {
-    showTooltip (e) {
-      this.tooltipStyle.top = e.clientY - 12 + 'px'
-      this.tooltipStyle.left = e.clientX + 12 + 'px'
-      this.tooltipStyle.visibility = 'visible'
-    },
-    hideTooltip () {
-      this.tooltipStyle.visibility = 'hidden'
-    }
-  }
-}

src/registerServiceWorker.js

@@ -0,0 +1,44 @@
+let refresh = false
+
+function invokeServiceWorkerUpdateFlow (registration) {
+  const agree = confirm('New version of the app is available. Refresh now?')
+  if (agree) {
+    if (registration.waiting) {
+      // let waiting Service Worker know it should became active
+      refresh = true
+      registration.waiting.postMessage({ type: 'SKIP_WAITING' })
+    }
+  }
+}
+
+if ('serviceWorker' in navigator) {
+  window.addEventListener('load', async () => {
+    const registration = await navigator.serviceWorker.register('service-worker.js')
+    // ensure the case when the updatefound event was missed is also handled
+    // by re-invoking the prompt when there's a waiting Service Worker
+    if (registration.waiting) {
+      invokeServiceWorkerUpdateFlow(registration)
+    }
+
+    // detect Service Worker update available and wait for it to become installed
+    registration.addEventListener('updatefound', () => {
+      const newRegestration = registration.installing
+      if (newRegestration) {
+        // wait until the new Service worker is actually installed (ready to take over)
+        newRegestration.addEventListener('statechange', () => {
+          if (registration.waiting && navigator.serviceWorker.controller) {
+            invokeServiceWorkerUpdateFlow(registration)
+          }
+        })
+      }
+    })
+
+    // detect controller change and refresh the page
+    navigator.serviceWorker.addEventListener('controllerchange', () => {
+      if (refresh) {
+        window.location.reload()
+        refresh = false
+      }
+    })
+  })
+}

src/router.js

@@ -0,0 +1,50 @@
+import Vue from 'vue'
+import VueRouter from 'vue-router'
+import Workspace from '@/views/Main/Workspace'
+import Inquiries from '@/views/Main/Inquiries'
+import Welcome from '@/views/Welcome'
+import Main from '@/views/Main'
+import store from '@/store'
+import database from '@/lib/database'
+
+Vue.use(VueRouter)
+
+const routes = [
+  {
+    path: '/',
+    name: 'Welcome',
+    component: Welcome
+  },
+  {
+    path: '/',
+    name: 'Main',
+    component: Main,
+    children: [
+      {
+        path: '/workspace',
+        name: 'Workspace',
+        component: Workspace
+      },
+      {
+        path: '/inquiries',
+        name: 'Inquiries',
+        component: Inquiries
+      }
+    ]
+  }
+]
+
+const router = new VueRouter({
+  routes
+})
+
+router.beforeEach(async (to, from, next) => {
+  if (!store.state.db) {
+    const newDb = database.getNewDatabase()
+    await newDb.loadDb()
+    store.commit('setDb', newDb)
+  }
+  next()
+})
+
+export default router

src/router/index.js

@@ -1,39 +0,0 @@
-import Vue from 'vue'
-import VueRouter from 'vue-router'
-import Editor from '@/views/Editor'
-import MyQueries from '@/views/MyQueries'
-import Home from '@/views/Home'
-import MainView from '@/views/MainView'
-
-Vue.use(VueRouter)
-
-const routes = [
-  {
-    path: '/',
-    name: 'Welcome',
-    component: Home
-  },
-  {
-    path: '/',
-    name: 'MainView',
-    component: MainView,
-    children: [
-      {
-        path: '/editor',
-        name: 'Editor',
-        component: Editor
-      },
-      {
-        path: '/my-queries',
-        name: 'MyQueries',
-        component: MyQueries
-      }
-    ]
-  }
-]
-
-const router = new VueRouter({
-  routes
-})
-
-export default router

src/store/actions.js

@@ -0,0 +1,32 @@
+import { nanoid } from 'nanoid'
+
+export default {
+  async addTab ({ state }, data) {
+    const tab = data ? JSON.parse(JSON.stringify(data)) : {}
+    // If no data then create a new blank one...
+    // No data.id means to create new tab, but not blank,
+    // e.g. with 'select * from csv_import' inquiry after csv import
+    if (!data || !data.id) {
+      tab.id = nanoid()
+      tab.name = null
+      tab.tempName = state.untitledLastIndex
+        ? `Untitled ${state.untitledLastIndex}`
+        : 'Untitled'
+      tab.viewType = 'chart'
+      tab.viewOptions = undefined
+      tab.isSaved = false
+    } else {
+      tab.isSaved = true
+    }
+
+    // add new tab only if was not already opened
+    if (!state.tabs.some(openedTab => openedTab.id === tab.id)) {
+      state.tabs.push(tab)
+      if (!tab.name) {
+        state.untitledLastIndex += 1
+      }
+    }
+
+    return tab.id
+  }
+}

src/store/index.js

@@ -1,112 +1,11 @@
 import Vue from 'vue'
 import Vuex from 'vuex'
-import { nanoid } from 'nanoid'
+import state from '@/store/state'
+import mutations from '@/store/mutations'
+import actions from '@/store/actions'
 
 Vue.use(Vuex)
 
-export const state = {
-  schema: null,
-  dbFile: null,
-  dbName: null,
-  tabs: [],
-  currentTab: null,
-  currentTabId: null,
-  untitledLastIndex: 0,
-  predefinedQueries: [],
-  db: null
-}
-
-export const mutations = {
-  setDb (state, db) {
-    if (state.db) {
-      state.db.shutDown()
-    }
-    state.db = db
-  },
-  saveSchema (state, { dbName, schema }) {
-    state.dbName = dbName
-    state.schema = schema
-  },
-
-  updateTab (state, { index, name, id, query, chart, isUnsaved }) {
-    const tab = state.tabs[index]
-    const oldId = tab.id
-
-    if (id && state.currentTabId === oldId) {
-      state.currentTabId = id
-    }
-
-    if (id) { tab.id = id }
-    if (name) { tab.name = name }
-    if (query) { tab.query = query }
-    if (chart) { tab.chart = chart }
-    if (isUnsaved !== undefined) { tab.isUnsaved = isUnsaved }
-    if (!isUnsaved) {
-      // Saved query is not predefined
-      delete tab.isPredefined
-    }
-
-    Vue.set(state.tabs, index, tab)
-  },
-  deleteTab (state, index) {
-    // If closing tab is the current opened
-    if (state.tabs[index].id === state.currentTabId) {
-      if (index < state.tabs.length - 1) {
-        state.currentTabId = state.tabs[index + 1].id
-      } else if (index > 0) {
-        state.currentTabId = state.tabs[index - 1].id
-      } else {
-        state.currentTabId = null
-        state.currentTab = null
-        state.untitledLastIndex = 0
-      }
-    }
-    state.tabs.splice(index, 1)
-  },
-  setCurrentTabId (state, id) {
-    state.currentTabId = id
-  },
-  setCurrentTab (state, tab) {
-    state.currentTab = tab
-  },
-  updatePredefinedQueries (state, queries) {
-    if (Array.isArray(queries)) {
-      state.predefinedQueries = queries
-    } else {
-      state.predefinedQueries = [queries]
-    }
-  }
-}
-
-export const actions = {
-  async addTab ({ state }, data) {
-    const tab = data ? JSON.parse(JSON.stringify(data)) : {}
-    // If no data then create a new blank one...
-    // No data.id means to create new tab, but not blank,
-    // e.g. with 'select * from csv_import' query after csv import
-    if (!data || !data.id) {
-      tab.id = nanoid()
-      tab.name = null
-      tab.tempName = state.untitledLastIndex
-        ? `Untitled ${state.untitledLastIndex}`
-        : 'Untitled'
-      tab.isUnsaved = true
-    } else {
-      tab.isUnsaved = false
-    }
-
-    // add new tab only if was not already opened
-    if (!state.tabs.some(openedTab => openedTab.id === tab.id)) {
-      state.tabs.push(tab)
-      if (!tab.name) {
-        state.untitledLastIndex += 1
-      }
-    }
-
-    return tab.id
-  }
-}
-
 export default new Vuex.Store({
   state,
   mutations,

src/store/mutations.js

@@ -0,0 +1,57 @@
+import Vue from 'vue'
+
+export default {
+  setDb (state, db) {
+    if (state.db) {
+      state.db.shutDown()
+    }
+    state.db = db
+  },
+
+  updateTab (state, { index, name, id, query, viewType, viewOptions, isSaved }) {
+    const tab = state.tabs[index]
+    const oldId = tab.id
+
+    if (id && state.currentTabId === oldId) {
+      state.currentTabId = id
+    }
+
+    if (id) { tab.id = id }
+    if (name) { tab.name = name }
+    if (query) { tab.query = query }
+    if (viewType) { tab.viewType = viewType }
+    if (viewOptions) { tab.viewOptions = viewOptions }
+    if (isSaved !== undefined) { tab.isSaved = isSaved }
+    if (isSaved) {
+      // Saved inquiry is not predefined
+      delete tab.isPredefined
+    }
+
+    Vue.set(state.tabs, index, tab)
+  },
+
+  deleteTab (state, index) {
+    // If closing tab is the current opened
+    if (state.tabs[index].id === state.currentTabId) {
+      if (index < state.tabs.length - 1) {
+        state.currentTabId = state.tabs[index + 1].id
+      } else if (index > 0) {
+        state.currentTabId = state.tabs[index - 1].id
+      } else {
+        state.currentTabId = null
+        state.currentTab = null
+        state.untitledLastIndex = 0
+      }
+    }
+    state.tabs.splice(index, 1)
+  },
+  setCurrentTabId (state, id) {
+    state.currentTabId = id
+  },
+  setCurrentTab (state, tab) {
+    state.currentTab = tab
+  },
+  updatePredefinedInquiries (state, inquiries) {
+    state.predefinedInquiries = Array.isArray(inquiries) ? inquiries : [inquiries]
+  }
+}

src/store/state.js

@@ -0,0 +1,8 @@
+export default {
+  tabs: [],
+  currentTab: null,
+  currentTabId: null,
+  untitledLastIndex: 0,
+  predefinedInquiries: [],
+  db: null
+}

src/storedQueries.js

@@ -1,96 +0,0 @@
-import { nanoid } from 'nanoid'
-import fu from '@/file.utils'
-
-export default {
-  getStoredQueries () {
-    return JSON.parse(localStorage.getItem('myQueries')) || []
-  },
-
-  duplicateQuery (baseQuery) {
-    const newQuery = JSON.parse(JSON.stringify(baseQuery))
-    newQuery.name = newQuery.name + ' Copy'
-    newQuery.id = nanoid()
-    newQuery.createdAt = new Date()
-    delete newQuery.isPredefined
-
-    return newQuery
-  },
-
-  isTabNeedName (queryTab) {
-    const isFromScratch = !queryTab.initName
-    return queryTab.isPredefined || isFromScratch
-  },
-
-  save (queryTab, newName) {
-    const value = {
-      id: queryTab.isPredefined ? nanoid() : queryTab.id,
-      query: queryTab.query,
-      chart: queryTab.$refs.chart.getChartStateForSave(),
-      name: newName || queryTab.initName
-    }
-
-    // Get queries from local storage
-    const myQueries = this.getStoredQueries()
-
-    // Set createdAt
-    if (newName) {
-      value.createdAt = new Date()
-    } else {
-      var queryIndex = myQueries.findIndex(oldQuery => oldQuery.id === queryTab.id)
-      value.createdAt = myQueries[queryIndex].createdAt
-    }
-
-    // Insert in queries list
-    if (newName) {
-      myQueries.push(value)
-    } else {
-      myQueries[queryIndex] = value
-    }
-
-    // Save to local storage
-    this.updateStorage(myQueries)
-    return value
-  },
-
-  updateStorage (value) {
-    localStorage.setItem('myQueries', JSON.stringify(value))
-  },
-
-  serialiseQueries (queryList) {
-    const preparedData = JSON.parse(JSON.stringify(queryList))
-    preparedData.forEach(query => delete query.isPredefined)
-    return JSON.stringify(preparedData, null, 4)
-  },
-
-  deserialiseQueries (str) {
-    let queryList = JSON.parse(str)
-    // Turn data into array if they are not
-    if (!Array.isArray(queryList)) {
-      queryList = [queryList]
-    }
-
-    // Generate new ids if they are the same as existing queries
-    queryList.forEach(query => {
-      const allQueriesIds = this.getStoredQueries().map(query => query.id)
-      if (allQueriesIds.includes(query.id)) {
-        query.id = nanoid()
-      }
-    })
-
-    return queryList
-  },
-
-  importQueries () {
-    return fu.importFile()
-      .then(data => {
-        return this.deserialiseQueries(data)
-      })
-  },
-
-  readPredefinedQueries () {
-    return fu.readFile('./queries.json')
-      .then(resp => {
-        return resp.json()
-      })
-  }
-}

src/time.js

@@ -1,36 +0,0 @@
-export default {
-  getPeriod (start, end) {
-    let diff = end.getTime() - start.getTime()
-    let result = ''
-
-    const days = Math.floor(diff / (1000 * 60 * 60 * 24))
-    diff -= days * (1000 * 60 * 60 * 24)
-    if (days) {
-      result += days + ' d '
-    }
-
-    const hours = Math.floor(diff / (1000 * 60 * 60))
-    diff -= hours * (1000 * 60 * 60)
-    if (hours) {
-      result += hours + ' h '
-    }
-
-    const mins = Math.floor(diff / (1000 * 60))
-    diff -= mins * (1000 * 60)
-    if (mins) {
-      result += mins + ' m '
-    }
-
-    const seconds = Math.floor(diff / (1000))
-    diff -= seconds * (1000)
-    if (seconds) {
-      result += seconds + ' s '
-    }
-
-    if (diff) {
-      result += diff + ' ms '
-    }
-
-    return result.replace(/\s$/, '')
-  }
-}

src/tooltipMixin.js

@@ -0,0 +1,37 @@
+export default {
+  data () {
+    return {
+      tooltipStyle: {
+        visibility: 'hidden'
+      }
+    }
+  },
+  computed: {
+    tooltipElement () {
+      return this.$refs.tooltip
+    }
+  },
+  methods: {
+    showTooltip (e, tooltipPosition) {
+      const position = tooltipPosition ? tooltipPosition.split('-') : ['top', 'right']
+      const offset = 12
+
+      if (position[0] === 'top') {
+        this.tooltipStyle.top = e.clientY - offset + 'px'
+      } else {
+        this.tooltipStyle.top = e.clientY + offset + 'px'
+      }
+
+      if (position[1] === 'right') {
+        this.tooltipStyle.left = e.clientX + offset + 'px'
+      } else {
+        this.tooltipStyle.left = e.clientX - offset - this.tooltipElement.offsetWidth + 'px'
+      }
+
+      this.tooltipStyle.visibility = 'visible'
+    },
+    hideTooltip () {
+      this.tooltipStyle.visibility = 'hidden'
+    }
+  }
+}

src/views/Editor.vue

@@ -1,78 +0,0 @@
-<template>
-  <div>
-    <splitpanes
-      class="schema-tabs-splitter"
-      :before="{ size: 20, max: 30 }"
-      :after="{ size: 80, max: 100 }"
-    >
-      <template #left-pane>
-        <schema v-if="$store.state.schema"/>
-        <div v-else id="empty-schema-container">
-          <div class="warning">
-            Database is not loaded. Queries can’t be run without database.
-          </div>
-          <db-uploader id="db-uploader"/>
-        </div>
-      </template>
-      <template #right-pane>
-        <tabs />
-      </template>
-    </splitpanes>
-  </div>
-</template>
-
-<script>
-import Splitpanes from '@/components/Splitpanes'
-import Schema from '@/components/Schema'
-import Tabs from '@/components/Tabs'
-import DbUploader from '@/components/DbUploader'
-
-export default {
-  name: 'Editor',
-  components: {
-    Schema,
-    Splitpanes,
-    Tabs,
-    DbUploader
-  }
-}
-</script>
-
-<style scoped>
-.schema-tabs-splitter {
-  height: 100%;
-  background-color: var(--color-white);
-}
-#empty-schema-container {
-  display: flex;
-  flex-direction: column;
-  align-items: center;
-  min-width: 200px;
-  height: 100%;
-}
-
-#db-uploader {
-  flex-grow: 1;
-  padding: 24px;
-  width: 100%;
-  box-sizing: border-box;
-}
-
-.warning {
-  padding: 12px 24px;
-  width: 100%;
-  box-sizing: border-box;
-}
-
->>> .db-uploader-container {
-  width: 100%;
-}
-
->>>.drop-area {
-  padding: 0 15px;
-}
-
->>>.drop-area .text {
-  max-width: 200px;
-}
-</style>

src/views/Main/AppDiagnosticInfo.vue

@@ -0,0 +1,90 @@
+<template>
+  <div id="app-info-container">
+    <img
+      id="app-info-icon"
+      :src="require('@/assets/images/info.svg')"
+      @click="$modal.show('app-info')"
+    />
+    <modal name="app-info" classes="dialog" height="auto" width="400px">
+      <div class="dialog-header">
+        App info
+        <close-icon @click="$modal.hide('app-info')"/>
+      </div>
+      <div class="dialog-body">
+        <div v-for="(item, index) in info" :key="index" class="info-item">
+          {{item.name}}
+          <div class="divider"/>
+          <div class="options">
+            <div v-for="(opt, index) in item.info" :key="index">
+              {{opt}}
+            </div>
+          </div>
+        </div>
+      </div>
+    </modal>
+  </div>
+</template>
+
+<script>
+import CloseIcon from '@/components/svg/close'
+
+export default {
+  name: 'AppDiagnosticInfo',
+  components: { CloseIcon },
+  data () {
+    return {
+      info: [
+        {
+          name: 'sqliteviz version',
+          info: [require('../../../package.json').version]
+        }
+      ]
+    }
+  },
+
+  async created () {
+    const state = this.$store.state
+    let result = await state.db.execute('select sqlite_version()')
+    this.info.push({
+      name: 'SQLite version',
+      info: result['sqlite_version()']
+    })
+
+    result = await state.db.execute('PRAGMA compile_options')
+    this.info.push({
+      name: 'SQLite compile options',
+      info: result.compile_options
+    })
+  }
+}
+</script>
+
+<style scoped>
+#app-info-icon {
+  cursor: pointer;
+}
+#app-info-container {
+  display: flex;
+  justify-content: center;
+  margin-left: 32px;
+}
+.divider {
+  height: 1px;
+  background-color: var(--color-border);
+  margin: 4px 0;
+}
+.options {
+  font-family: monospace;
+  font-size: 13px;
+  margin-left: 8px;
+  overflow: auto;
+  max-height: 170px;
+}
+.info-item {
+  margin-bottom: 32px;
+   font-size: 14px;
+}
+.info-item:last-child {
+  margin-bottom: 0;
+}
+</style>

src/views/Main/Inquiries/index.vue

@@ -1,22 +1,22 @@
 <template>
   <div>
-    <div id="start-guide" v-if="showedQueries.length === 0">
-      You don't have saved queries so far.
-      <span class="link" @click="$root.$emit('createNewQuery')">Create</span>
+    <div id="start-guide" v-if="showedInquiries.length === 0">
+      You don't have saved inquiries so far.
+      <span class="link" @click="$root.$emit('createNewInquiry')">Create</span>
       the one from scratch or
-      <span @click="importQueries" class="link">import</span> from a file.
+      <span @click="importInquiries" class="link">import</span> from a file.
     </div>
-    <div id="my-queries-content" ref="my-queries-content" v-show="showedQueries.length > 0">
-      <div id="my-queries-toolbar">
+    <div id="my-inquiries-content" ref="my-inquiries-content" v-show="showedInquiries.length > 0">
+      <div id="my-inquiries-toolbar">
         <div id="toolbar-buttons">
-          <button id="toolbar-btns-import" class="toolbar" @click="importQueries">
+          <button id="toolbar-btns-import" class="toolbar" @click="importInquiries">
             Import
           </button>
           <button
             id="toolbar-btns-export"
             class="toolbar"
-            v-show="selectedQueriesCount > 0"
-            @click="exportSelectedQueries()"
+            v-show="selectedInquiriesCount > 0"
+            @click="exportSelectedInquiries()"
           >
             Export
           </button>
@@ -24,13 +24,13 @@
             id="toolbar-btns-delete"
             class="toolbar"
             v-show="selectedNotPredefinedCount > 0"
-            @click="showDeleteDialog(selectedQueriesIds)"
+            @click="showDeleteDialog(selectedInquiriesIds)"
           >
             Delete
           </button>
         </div>
         <div id="toolbar-search">
-          <text-field placeholder="Search query by name" width="300px" v-model="filter"/>
+          <text-field placeholder="Search inquiry by name" width="300px" v-model="filter"/>
         </div>
       </div>
       <div class="rounded-bg">
@@ -46,45 +46,49 @@
         </div>
       </div>
       <div class="table-container" :style="{ 'max-height': `${maxTableHeight}px` }">
-        <table ref="table">
+        <table ref="table" class="sqliteviz-table">
           <tbody>
             <tr
-              v-for="(query, index) in showedQueries"
-              :key="query.id"
-              @click="openQuery(index)"
+              v-for="(inquiry, index) in showedInquiries"
+              :key="inquiry.id"
+              @click="openInquiry(index)"
             >
               <td ref="name-td">
                  <div class="cell-data">
                     <check-box
                       ref="rowCheckBox"
-                      :init="selectAll || selectedQueriesIds.has(query.id)"
-                      @click="toggleRow($event, query.id)"
+                      :init="selectAll || selectedInquiriesIds.has(inquiry.id)"
+                      @click="toggleRow($event, inquiry.id)"
                     />
-                    <div class="name">{{ query.name }}</div>
+                    <div class="name">{{ inquiry.name }}</div>
                     <div
-                      v-if="query.isPredefined"
+                      v-if="inquiry.isPredefined"
                       class="badge"
-                      @mouseover="showTooltip"
-                      @mouseout="hideTooltip"
+                      @mouseenter="showTooltip"
+                      @mouseleave="hideTooltip"
                     >
                       Predefined
-                      <span class="icon-tooltip" :style="tooltipStyle">
-                        Predefined queries come from the server.
-                        These queries can’t be deleted or renamed.
+                      <span class="icon-tooltip" :style="tooltipStyle" ref="tooltip">
+                        Predefined inquiries come from the server.
+                        These inquiries can’t be deleted or renamed.
                       </span>
                     </div>
                  </div>
               </td>
               <td>
                 <div class="second-column">
-                  <div class="date-container">{{ query.createdAt | date }}</div>
+                  <div class="date-container">{{ inquiry.createdAt | date }}</div>
                   <div class="icons-container">
-                    <rename-icon v-if="!query.isPredefined" @click="showRenameDialog(query.id)" />
-                    <copy-icon @click="duplicateQuery(index)"/>
-                    <export-icon @click="exportToFile([query], `${query.name}.json`)"/>
+                    <rename-icon v-if="!inquiry.isPredefined" @click="showRenameDialog(inquiry.id)" />
+                    <copy-icon @click="duplicateInquiry(index)"/>
+                    <export-icon
+                      @click="exportToFile([inquiry], `${inquiry.name}.json`)"
+                      tooltip="Export inquiry to file"
+                      tooltip-position="top-left"
+                    />
                     <delete-icon
-                      v-if="!query.isPredefined"
-                      @click="showDeleteDialog((new Set()).add(query.id))"
+                      v-if="!inquiry.isPredefined"
+                      @click="showDeleteDialog((new Set()).add(inquiry.id))"
                     />
                   </div>
                 </div>
@@ -96,15 +100,15 @@
     </div>
   </div>
 
-  <!--Rename Query dialog  -->
+  <!--Rename Inquiry dialog  -->
   <modal name="rename" classes="dialog" height="auto">
     <div class="dialog-header">
-      Rename query
+      Rename inquiry
       <close-icon @click="$modal.hide('rename')"/>
     </div>
     <div class="dialog-body">
       <text-field
-        label="New query name"
+        label="New inquiry name"
         :error-msg="errorMsg"
         v-model="newName"
         width="100%"
@@ -112,45 +116,45 @@
     </div>
     <div class="dialog-buttons-container">
       <button class="secondary" @click="$modal.hide('rename')">Cancel</button>
-      <button class="primary" @click="renameQuery">Rename</button>
+      <button class="primary" @click="renameInquiry">Rename</button>
     </div>
   </modal>
 
-  <!--Delete Query dialog  -->
+  <!--Delete Inquiry dialog  -->
   <modal name="delete" classes="dialog" height="auto">
     <div class="dialog-header">
-      Delete {{ deleteGroup ? 'queries' : 'query' }}
+      Delete {{ deleteGroup ? 'inquiries' : 'inquiry' }}
       <close-icon @click="$modal.hide('delete')"/>
     </div>
     <div class="dialog-body">
       {{ deleteDialogMsg }}
-      <div v-show="selectedQueriesCount > selectedNotPredefinedCount" id="note">
+      <div v-show="selectedInquiriesCount > selectedNotPredefinedCount" id="note">
         <img :src="require('@/assets/images/info.svg')">
-        Note: Predefined queries you've selected won't be deleted
+        Note: Predefined inquiries you've selected won't be deleted
       </div>
     </div>
     <div class="dialog-buttons-container">
       <button class="secondary" @click="$modal.hide('delete')">Cancel</button>
-      <button class="primary" @click="deleteQuery">Delete</button>
+      <button class="primary" @click="deleteInquiry">Delete</button>
     </div>
   </modal>
 </div>
 </template>
 
 <script>
-import RenameIcon from '@/components/svg/rename'
-import CopyIcon from '@/components/svg/copy'
+import RenameIcon from './svg/rename'
+import CopyIcon from './svg/copy'
 import ExportIcon from '@/components/svg/export'
-import DeleteIcon from '@/components/svg/delete'
+import DeleteIcon from './svg/delete'
 import CloseIcon from '@/components/svg/close'
 import TextField from '@/components/TextField'
 import CheckBox from '@/components/CheckBox'
-import tooltipMixin from '@/mixins/tooltips'
-import storedQueries from '@/storedQueries'
-import fu from '@/file.utils'
+import tooltipMixin from '@/tooltipMixin'
+import storedInquiries from '@/lib/storedInquiries'
+import fu from '@/lib/utils/fileIo'
 
 export default {
-  name: 'MyQueries',
+  name: 'Inquiries',
   components: {
     RenameIcon,
     CopyIcon,
@@ -163,13 +167,13 @@ export default {
   mixins: [tooltipMixin],
   data () {
     return {
-      queries: [],
+      inquiries: [],
       filter: null,
       newName: null,
-      processedQueryId: null,
+      processedInquiryId: null,
       errorMsg: null,
-      selectedQueriesIds: new Set(),
-      selectedQueriesCount: 0,
+      selectedInquiriesIds: new Set(),
+      selectedInquiriesCount: 0,
       selectedNotPredefinedCount: 0,
       selectAll: false,
       deleteGroup: false,
@@ -178,61 +182,61 @@ export default {
     }
   },
   computed: {
-    predefinedQueries () {
-      return this.$store.state.predefinedQueries.map(query => {
-        query.isPredefined = true
-        return query
+    predefinedInquiries () {
+      return this.$store.state.predefinedInquiries.map(inquiry => {
+        inquiry.isPredefined = true
+        return inquiry
       })
     },
-    predefinedQueriesIds () {
-      return new Set(this.predefinedQueries.map(query => query.id))
+    predefinedInquiriesIds () {
+      return new Set(this.predefinedInquiries.map(inquiry => inquiry.id))
     },
-    showedQueries () {
-      let showedQueries = this.allQueries
+    showedInquiries () {
+      let showedInquiries = this.allInquiries
       if (this.filter) {
-        showedQueries = showedQueries.filter(
-          query => query.name.toUpperCase().indexOf(this.filter.toUpperCase()) >= 0
+        showedInquiries = showedInquiries.filter(
+          inquiry => inquiry.name.toUpperCase().indexOf(this.filter.toUpperCase()) >= 0
         )
       }
-      return showedQueries
+      return showedInquiries
     },
-    allQueries () {
-      return this.predefinedQueries.concat(this.queries)
+    allInquiries () {
+      return this.predefinedInquiries.concat(this.inquiries)
     },
-    processedQueryIndex () {
-      return this.queries.findIndex(query => query.id === this.processedQueryId)
+    processedInquiryIndex () {
+      return this.inquiries.findIndex(inquiry => inquiry.id === this.processedInquiryId)
     },
     deleteDialogMsg () {
       if (!this.deleteGroup && (
-        this.processedQueryIndex === null ||
-          this.processedQueryIndex < 0 ||
-          this.processedQueryIndex > this.queries.length
+        this.processedInquiryIndex === null ||
+          this.processedInquiryIndex < 0 ||
+          this.processedInquiryIndex > this.inquiries.length
       )) {
         return ''
       }
 
       const deleteItem = this.deleteGroup
         ? `${this.selectedNotPredefinedCount} ${this.selectedNotPredefinedCount > 1
-          ? 'queries'
-          : 'query'}`
-        : `"${this.queries[this.processedQueryIndex].name}"`
+          ? 'inquiries'
+          : 'inquiry'}`
+        : `"${this.inquiries[this.processedInquiryIndex].name}"`
 
       return `Are you sure you want to delete ${deleteItem}?`
     }
   },
   created () {
-    storedQueries.readPredefinedQueries()
-      .then(queries => {
-        this.$store.commit('updatePredefinedQueries', queries)
+    storedInquiries.readPredefinedInquiries()
+      .then(inquiries => {
+        this.$store.commit('updatePredefinedInquiries', inquiries)
       })
       .catch(console.error)
       .finally(() => {
-        this.queries = storedQueries.getStoredQueries()
+        this.inquiries = storedInquiries.getStoredInquiries()
       })
   },
   mounted () {
     this.resizeObserver = new ResizeObserver(this.calcMaxTableHeight)
-    this.resizeObserver.observe(this.$refs['my-queries-content'])
+    this.resizeObserver.observe(this.$refs['my-inquiries-content'])
 
     this.tableResizeObserver = new ResizeObserver(this.calcNameWidth)
     this.tableResizeObserver.observe(this.$refs.table)
@@ -240,7 +244,7 @@ export default {
     this.calcMaxTableHeight()
   },
   beforeDestroy () {
-    this.resizeObserver.unobserve(this.$refs['my-queries-content'])
+    this.resizeObserver.unobserve(this.$refs['my-inquiries-content'])
     this.tableResizeObserver.unobserve(this.$refs.table)
   },
   filters: {
@@ -266,153 +270,153 @@ export default {
       this.$refs['name-th'].style = `width: ${nameWidth}px`
     },
     calcMaxTableHeight () {
-      const freeSpace = this.$refs['my-queries-content'].offsetHeight - 200
+      const freeSpace = this.$refs['my-inquiries-content'].offsetHeight - 200
       this.maxTableHeight = freeSpace - (freeSpace % 40) + 1
     },
-    openQuery (index) {
-      const tab = this.showedQueries[index]
+    openInquiry (index) {
+      const tab = this.showedInquiries[index]
       this.$store.dispatch('addTab', tab).then(id => {
         this.$store.commit('setCurrentTabId', id)
-        this.$router.push('/editor')
+        this.$router.push('/workspace')
       })
     },
     showRenameDialog (id) {
       this.errorMsg = null
-      this.processedQueryId = id
-      this.newName = this.queries[this.processedQueryIndex].name
+      this.processedInquiryId = id
+      this.newName = this.inquiries[this.processedInquiryIndex].name
       this.$modal.show('rename')
     },
-    renameQuery () {
+    renameInquiry () {
       if (!this.newName) {
-        this.errorMsg = 'Query name can\'t be empty'
+        this.errorMsg = "Inquiry name can't be empty"
         return
       }
-      const processedQuery = this.queries[this.processedQueryIndex]
-      processedQuery.name = this.newName
-      this.$set(this.queries, this.processedQueryIndex, processedQuery)
+      const processedInquiry = this.inquiries[this.processedInquiryIndex]
+      processedInquiry.name = this.newName
+      this.$set(this.inquiries, this.processedInquiryIndex, processedInquiry)
 
-      // update queries in local storage
-      storedQueries.updateStorage(this.queries)
+      // update inquiries in local storage
+      storedInquiries.updateStorage(this.inquiries)
 
-      // update tab, if renamed query is opened
-      const tabIndex = this.findTabIndex(processedQuery.id)
+      // update tab, if renamed inquiry is opened
+      const tabIndex = this.findTabIndex(processedInquiry.id)
       if (tabIndex >= 0) {
         this.$store.commit('updateTab', {
           index: tabIndex,
           name: this.newName,
-          id: processedQuery.id
+          id: processedInquiry.id
         })
       }
       // hide dialog
       this.$modal.hide('rename')
     },
-    duplicateQuery (index) {
-      const newQuery = storedQueries.duplicateQuery(this.showedQueries[index])
+    duplicateInquiry (index) {
+      const newInquiry = storedInquiries.duplicateInquiry(this.showedInquiries[index])
       if (this.selectAll) {
-        this.selectedQueriesIds.add(newQuery.id)
-        this.selectedQueriesCount = this.selectedQueriesIds.size
+        this.selectedInquiriesIds.add(newInquiry.id)
+        this.selectedInquiriesCount = this.selectedInquiriesIds.size
       }
-      this.queries.push(newQuery)
-      storedQueries.updateStorage(this.queries)
+      this.inquiries.push(newInquiry)
+      storedInquiries.updateStorage(this.inquiries)
     },
     showDeleteDialog (idsSet) {
       this.deleteGroup = idsSet.size > 1
       if (!this.deleteGroup) {
-        this.processedQueryId = idsSet.values().next().value
+        this.processedInquiryId = idsSet.values().next().value
       }
       this.$modal.show('delete')
     },
-    deleteQuery () {
+    deleteInquiry () {
       this.$modal.hide('delete')
       if (!this.deleteGroup) {
-        this.queries.splice(this.processedQueryIndex, 1)
+        this.inquiries.splice(this.processedInquiryIndex, 1)
 
-        // Close deleted query tab if it was opened
-        const tabIndex = this.findTabIndex(this.processedQueryId)
+        // Close deleted inquiry tab if it was opened
+        const tabIndex = this.findTabIndex(this.processedInquiryId)
         if (tabIndex >= 0) {
           this.$store.commit('deleteTab', tabIndex)
         }
 
         // Clear checkboxes
-        if (this.selectedQueriesIds.has(this.processedQueryId)) {
-          this.selectedQueriesIds.delete(this.processedQueryId)
+        if (this.selectedInquiriesIds.has(this.processedInquiryId)) {
+          this.selectedInquiriesIds.delete(this.processedInquiryId)
         }
       } else {
-        this.queries = this.selectAll
+        this.inquiries = this.selectAll
           ? []
-          : this.queries.filter(query => !this.selectedQueriesIds.has(query.id))
+          : this.inquiries.filter(inquiry => !this.selectedInquiriesIds.has(inquiry.id))
 
-        // Close deleted queries if it was opened
+        // Close deleted inquiries if it was opened
         const tabs = this.$store.state.tabs
         for (let i = tabs.length - 1; i >= 0; i--) {
-          if (this.selectedQueriesIds.has(tabs[i].id)) {
+          if (this.selectedInquiriesIds.has(tabs[i].id)) {
             this.$store.commit('deleteTab', i)
           }
         }
 
         // Clear checkboxes
-        this.selectedQueriesIds.clear()
+        this.selectedInquiriesIds.clear()
       }
-      this.selectedQueriesCount = this.selectedQueriesIds.size
-      storedQueries.updateStorage(this.queries)
+      this.selectedInquiriesCount = this.selectedInquiriesIds.size
+      storedInquiries.updateStorage(this.inquiries)
     },
     findTabIndex (id) {
       return this.$store.state.tabs.findIndex(tab => tab.id === id)
     },
-    exportToFile (queryList, fileName) {
-      const jsonStr = storedQueries.serialiseQueries(queryList)
+    exportToFile (inquiryList, fileName) {
+      const jsonStr = storedInquiries.serialiseInquiries(inquiryList)
       fu.exportToFile(jsonStr, fileName)
     },
-    exportSelectedQueries () {
-      const queryList = this.selectAll
-        ? this.allQueries
-        : this.allQueries.filter(query => this.selectedQueriesIds.has(query.id))
+    exportSelectedInquiries () {
+      const inquiryList = this.selectAll
+        ? this.allInquiries
+        : this.allInquiries.filter(inquiry => this.selectedInquiriesIds.has(inquiry.id))
 
-      this.exportToFile(queryList, 'My sqliteviz queries.json')
+      this.exportToFile(inquiryList, 'My sqliteviz inquiries.json')
     },
-    importQueries () {
-      storedQueries.importQueries()
-        .then(importedQueries => {
+    importInquiries () {
+      storedInquiries.importInquiries()
+        .then(importedInquiries => {
           if (this.selectAll) {
-            importedQueries.forEach(query => {
-              this.selectedQueriesIds.add(query.id)
+            importedInquiries.forEach(inquiry => {
+              this.selectedInquiriesIds.add(inquiry.id)
             })
-            this.selectedQueriesCount = this.selectedQueriesIds.size
+            this.selectedInquiriesCount = this.selectedInquiriesIds.size
           }
 
-          this.queries = this.queries.concat(importedQueries)
-          storedQueries.updateStorage(this.queries)
+          this.inquiries = this.inquiries.concat(importedInquiries)
+          storedInquiries.updateStorage(this.inquiries)
         })
     },
     toggleSelectAll (checked) {
       this.selectAll = checked
       this.$refs.rowCheckBox.forEach(item => { item.checked = checked })
 
-      this.selectedQueriesIds = checked
-        ? new Set(this.allQueries.map(query => query.id))
+      this.selectedInquiriesIds = checked
+        ? new Set(this.allInquiries.map(inquiry => inquiry.id))
         : new Set()
 
-      this.selectedQueriesCount = this.selectedQueriesIds.size
-      this.selectedNotPredefinedCount = checked ? this.queries.length : 0
+      this.selectedInquiriesCount = this.selectedInquiriesIds.size
+      this.selectedNotPredefinedCount = checked ? this.inquiries.length : 0
     },
     toggleRow (checked, id) {
-      const isPredefined = this.predefinedQueriesIds.has(id)
+      const isPredefined = this.predefinedInquiriesIds.has(id)
       if (checked) {
-        this.selectedQueriesIds.add(id)
+        this.selectedInquiriesIds.add(id)
         if (!isPredefined) {
           this.selectedNotPredefinedCount += 1
         }
       } else {
-        if (this.selectedQueriesIds.size === this.allQueries.length) {
+        if (this.selectedInquiriesIds.size === this.allInquiries.length) {
           this.$refs.mainCheckBox.checked = false
           this.selectAll = false
         }
-        this.selectedQueriesIds.delete(id)
+        this.selectedInquiriesIds.delete(id)
         if (!isPredefined) {
           this.selectedNotPredefinedCount -= 1
         }
       }
-      this.selectedQueriesCount = this.selectedQueriesIds.size
+      this.selectedInquiriesCount = this.selectedInquiriesIds.size
     }
   }
 }
@@ -429,13 +433,13 @@ export default {
   text-align: center;
 }
 
-#my-queries-content {
+#my-inquiries-content {
   padding: 52px;
   height: 100%;
   box-sizing: border-box;
 }
 
-#my-queries-toolbar {
+#my-inquiries-toolbar {
   display: flex;
   justify-content: space-between;
   margin-bottom: 18px;
@@ -445,6 +449,7 @@ export default {
 }
 
 .rounded-bg {
+  padding-top: 40px;
   margin: 0 auto;
   max-width: 1500px;
   width: 100%;
@@ -461,47 +466,47 @@ export default {
   margin-left: 24px;
 }
 
-table {
+table.sqliteviz-table {
   margin-top: 0;
 }
 
-tbody tr td {
+.sqliteviz-table tbody tr td {
   min-width: 0;
   height: 40px;
 }
 
-tbody tr td:first-child {
+.sqliteviz-table tbody tr td:first-child {
   width: 70%;
   max-width: 0;
   padding: 0 12px;
 }
-tbody tr td:last-child {
+.sqliteviz-table tbody tr td:last-child {
   width: 30%;
   max-width: 0;
   padding: 0 24px;
 }
 
-tbody .cell-data {
+.sqliteviz-table tbody .cell-data {
   display: flex;
   align-items: center;
   max-width: 100%;
   width: 100%;
 }
-tbody .cell-data div.name {
+.sqliteviz-table tbody .cell-data div.name {
   overflow: hidden;
   text-overflow: ellipsis;
   margin-left: 24px;
 }
 
-tbody tr:hover td {
+.sqliteviz-table tbody tr:hover td {
   cursor: pointer;
 }
 
-tbody tr:hover td {
+.sqliteviz-table tbody tr:hover td {
   color: var(--color-text-active);
 }
 
-.second-column {
+.sqliteviz-table .second-column {
   display: flex;
   justify-content: space-between;
   align-items: center;
@@ -519,8 +524,8 @@ tbody tr:hover td {
   overflow: hidden;
   text-overflow: ellipsis;
 }
-tbody tr:hover .icons-container {
-  display: block;
+.sqliteviz-table tbody tr:hover .icons-container {
+  display: flex;
 }
 .dialog input {
   width: 100%;
@@ -541,7 +546,7 @@ button.toolbar {
   margin-left: 12px;
 }
 
-tbody tr:hover .badge {
+.sqliteviz-table tbody tr:hover .badge {
   display: block;
 }
 #note {

src/views/Main/Inquiries/svg/copy.vue

@@ -6,34 +6,39 @@
       height="18"
       viewBox="0 0 18 18"
       fill="none"
-      xmlns="http://www.w3.org/2000/svg"
-      @click.stop="$emit('click')"
-      @mouseover="showTooltip"
-      @mouseout="hideTooltip"
+      @click.stop="onClick"
+      @mouseenter="showTooltip"
+      @mouseleave="hideTooltip"
     >
       <path
         d="M14.25 15.75H6V5.25H14.25V15.75ZM14.25 3.75H6C5.60218 3.75 5.22064 3.90804 4.93934 4.18934C4.65804 4.47064 4.5 4.85218 4.5 5.25V15.75C4.5 16.1478 4.65804 16.5294 4.93934 16.8107C5.22064 17.092 5.60218 17.25 6 17.25H14.25C14.6478 17.25 15.0294 17.092 15.3107 16.8107C15.592 16.5294 15.75 16.1478 15.75 15.75V5.25C15.75 4.85218 15.592 4.47064 15.3107 4.18934C15.0294 3.90804 14.6478 3.75 14.25 3.75ZM12 0.75H3C2.60218 0.75 2.22064 0.908035 1.93934 1.18934C1.65804 1.47064 1.5 1.85218 1.5 2.25V12.75H3V2.25H12V0.75Z"
         fill="#A2B1C6"
       />
     </svg>
-    <span class="icon-tooltip" :style="tooltipStyle">
-      Duplicate query
+    <span class="icon-tooltip" :style="tooltipStyle" ref="tooltip">
+      Duplicate inquiry
     </span>
   </span>
 </template>
 
 <script>
-import tooltipMixin from '@/mixins/tooltips'
+import tooltipMixin from '@/tooltipMixin'
 
 export default {
   name: 'CopyIcon',
-  mixins: [tooltipMixin]
+  mixins: [tooltipMixin],
+  methods: {
+    onClick () {
+      this.hideTooltip()
+      this.$emit('click')
+    }
+  }
 }
 </script>
 
 <style scoped>
 .icon {
-  vertical-align: middle;
+  display: block;
   margin: 0 12px;
 }
 .icon:hover path {

src/views/Main/Inquiries/svg/delete.vue

@@ -6,34 +6,39 @@
       height="18"
       viewBox="0 0 18 18"
       fill="none"
-      xmlns="http://www.w3.org/2000/svg"
-      @click.stop="$emit('click')"
-      @mouseover="showTooltip"
-      @mouseout="hideTooltip"
+      @click.stop="onClick"
+      @mouseenter="showTooltip($event, 'top-left')"
+      @mouseleave="hideTooltip"
     >
       <path
         d="M6.75 2.25V3H3V4.5H3.75V14.25C3.75 14.6478 3.90804 15.0294 4.18934 15.3107C4.47064 15.592 4.85218 15.75 5.25 15.75H12.75C13.1478 15.75 13.5294 15.592 13.8107 15.3107C14.092 15.0294 14.25 14.6478 14.25 14.25V4.5H15V3H11.25V2.25H6.75ZM5.25 4.5H12.75V14.25H5.25V4.5ZM6.75 6V12.75H8.25V6H6.75ZM9.75 6V12.75H11.25V6H9.75Z"
         fill="#A2B1C6"
       />
     </svg>
-    <span class="icon-tooltip" :style="tooltipStyle">
-      Delete query
+    <span class="icon-tooltip" :style="tooltipStyle" ref="tooltip">
+      Delete inquiry
     </span>
   </span>
 </template>
 
 <script>
-import tooltipMixin from '@/mixins/tooltips'
+import tooltipMixin from '@/tooltipMixin'
 
 export default {
   name: 'DeleteIcon',
-  mixins: [tooltipMixin]
+  mixins: [tooltipMixin],
+  methods: {
+    onClick () {
+      this.hideTooltip()
+      this.$emit('click')
+    }
+  }
 }
 </script>
 
 <style scoped>
 .icon {
-  vertical-align: middle;
+  display: block;
   margin: 0 12px;
 }
 

src/views/Main/Inquiries/svg/rename.vue

@@ -6,34 +6,39 @@
       height="18"
       viewBox="0 0 18 18"
       fill="none"
-      xmlns="http://www.w3.org/2000/svg"
-      @click.stop="$emit('click')"
-      @mouseover="showTooltip"
-      @mouseout="hideTooltip"
+      @click.stop="onClick"
+      @mouseenter="showTooltip"
+      @mouseleave="hideTooltip"
     >
       <path
         d="M10.545 6.75L11.25 7.455L4.44 14.25H3.75V13.56L10.545 6.75ZM13.245 2.25C13.0575 2.25 12.8625 2.325 12.72 2.4675L11.3475 3.84L14.16 6.6525L15.5325 5.28C15.825 4.9875 15.825 4.5 15.5325 4.2225L13.7775 2.4675C13.6275 2.3175 13.44 2.25 13.245 2.25ZM10.545 4.6425L2.25 12.9375V15.75H5.0625L13.3575 7.455L10.545 4.6425Z"
         fill="#A2B1C6"
       />
     </svg>
-    <span class="icon-tooltip" :style="tooltipStyle">
-      Rename query
+    <span class="icon-tooltip" :style="tooltipStyle" ref="tooltip">
+      Rename inquiry
     </span>
   </span>
 </template>
 
 <script>
-import tooltipMixin from '@/mixins/tooltips'
+import tooltipMixin from '@/tooltipMixin'
 
 export default {
   name: 'RenameIcon',
-  mixins: [tooltipMixin]
+  mixins: [tooltipMixin],
+  methods: {
+    onClick () {
+      this.hideTooltip()
+      this.$emit('click')
+    }
+  }
 }
 </script>
 
 <style scoped>
 .icon {
-  vertical-align: middle;
+  display: block;
   margin: 0 12px;
 }
 

src/views/Main/MainMenu.vue

@@ -1,51 +1,44 @@
 <template>
   <nav>
     <div>
-      <router-link to="/editor">Editor</router-link>
-      <router-link to="/my-queries">My queries</router-link>
+      <router-link to="/workspace">Workspace</router-link>
+      <router-link to="/inquiries">Inquiries</router-link>
+      <a href="https://github.com/lana-k/sqliteviz/wiki" target="_blank">Help</a>
     </div>
-    <div>
-      <button
-        id="run-btn"
-        v-if="currentQuery && $route.path === '/editor'"
-        class="primary"
-        :disabled="runDisabled"
-        @click="currentQuery.execute"
-      >
-        Run
-      </button>
+    <div id="nav-buttons">
       <button
         id="save-btn"
-        v-show="currentQuery && $route.path === '/editor'"
+        v-show="currentInquiry && $route.path === '/workspace'"
         class="primary"
-        :disabled="!isUnsaved"
-        @click="checkQueryBeforeSave"
+        :disabled="isSaved"
+        @click="checkInquiryBeforeSave"
       >
         Save
       </button>
       <button
         id="create-btn"
         class="primary"
-        @click="createNewQuery"
+        @click="createNewInquiry"
       >
         Create
       </button>
+      <app-diagnostic-info />
     </div>
 
-    <!--Save Query dialog  -->
+    <!--Save Inquiry dialog  -->
     <modal name="save" classes="dialog" height="auto">
       <div class="dialog-header">
-        Save query
+        Save inquiry
         <close-icon @click="cancelSave"/>
       </div>
       <div class="dialog-body">
         <div v-show="isPredefined" id="save-note">
           <img :src="require('@/assets/images/info.svg')">
-          Note: Predefined queries can't be edited.
-          That's why your modifications will be saved as a new query. Enter the name for it.
+          Note: Predefined inquiries can't be edited.
+          That's why your modifications will be saved as a new inquiry. Enter the name for it.
         </div>
         <text-field
-          label="Query name"
+          label="Inquiry name"
           :error-msg="errorMsg"
           v-model="name"
           width="100%"
@@ -53,7 +46,7 @@
       </div>
       <div class="dialog-buttons-container">
         <button class="secondary" @click="cancelSave">Cancel</button>
-        <button class="primary" @click="saveQuery">Save</button>
+        <button class="primary" @click="saveInquiry">Save</button>
       </div>
     </modal>
   </nav>
@@ -62,13 +55,15 @@
 <script>
 import TextField from '@/components/TextField'
 import CloseIcon from '@/components/svg/close'
-import storedQueries from '@/storedQueries'
+import storedInquiries from '@/lib/storedInquiries'
+import AppDiagnosticInfo from './AppDiagnosticInfo'
 
 export default {
   name: 'MainMenu',
   components: {
     TextField,
-    CloseIcon
+    CloseIcon,
+    AppDiagnosticInfo
   },
   data () {
     return {
@@ -77,121 +72,122 @@ export default {
     }
   },
   computed: {
-    currentQuery () {
+    currentInquiry () {
       return this.$store.state.currentTab
     },
-    isUnsaved () {
-      if (!this.currentQuery) {
+    isSaved () {
+      if (!this.currentInquiry) {
         return false
       }
-      const tabIndex = this.currentQuery.tabIndex
+      const tabIndex = this.currentInquiry.tabIndex
       const tab = this.$store.state.tabs[tabIndex]
-      return tab && tab.isUnsaved
+      return tab && tab.isSaved
     },
     isPredefined () {
-      if (this.currentQuery) {
-        return this.currentQuery.isPredefined
+      if (this.currentInquiry) {
+        return this.currentInquiry.isPredefined
       } else {
         return false
       }
     },
     runDisabled () {
-      return this.currentQuery && (!this.$store.state.schema || !this.currentQuery.query)
+      return this.currentInquiry && (!this.$store.state.db || !this.currentInquiry.query)
     }
   },
   created () {
-    this.$root.$on('createNewQuery', this.createNewQuery)
-    this.$root.$on('saveQuery', this.checkQueryBeforeSave)
+    this.$root.$on('createNewInquiry', this.createNewInquiry)
+    this.$root.$on('saveInquiry', this.checkInquiryBeforeSave)
     document.addEventListener('keydown', this._keyListener)
   },
   beforeDestroy () {
     document.removeEventListener('keydown', this._keyListener)
   },
   methods: {
-    createNewQuery () {
+    createNewInquiry () {
       this.$store.dispatch('addTab').then(id => {
         this.$store.commit('setCurrentTabId', id)
-        if (this.$route.path !== '/editor') {
-          this.$router.push('/editor')
+        if (this.$route.path !== '/workspace') {
+          this.$router.push('/workspace')
         }
       })
     },
     cancelSave () {
       this.$modal.hide('save')
-      this.$root.$off('querySaved')
+      this.$root.$off('inquirySaved')
     },
-    checkQueryBeforeSave () {
+    checkInquiryBeforeSave () {
       this.errorMsg = null
       this.name = ''
 
-      if (storedQueries.isTabNeedName(this.currentQuery)) {
+      if (storedInquiries.isTabNeedName(this.currentInquiry)) {
         this.$modal.show('save')
       } else {
-        this.saveQuery()
+        this.saveInquiry()
       }
     },
-    saveQuery () {
-      const isNeedName = storedQueries.isTabNeedName(this.currentQuery)
+    saveInquiry () {
+      const isNeedName = storedInquiries.isTabNeedName(this.currentInquiry)
       if (isNeedName && !this.name) {
-        this.errorMsg = 'Query name can\'t be empty'
+        this.errorMsg = 'Inquiry name can\'t be empty'
         return
       }
-      const dataSet = this.currentQuery.result
-      const tabView = this.currentQuery.view
+      const dataSet = this.currentInquiry.result
+      const tabView = this.currentInquiry.view
 
-      // Save query
-      const value = storedQueries.save(this.currentQuery, this.name)
+      // Save inquiry
+      const value = storedInquiries.save(this.currentInquiry, this.name)
 
       // Update tab in store
       this.$store.commit('updateTab', {
-        index: this.currentQuery.tabIndex,
+        index: this.currentInquiry.tabIndex,
         name: value.name,
         id: value.id,
         query: value.query,
-        chart: value.chart,
-        isUnsaved: false
+        viewType: value.viewType,
+        viewOptions: value.viewOptions,
+        isSaved: true
       })
 
       // Restore data:
-      // e.g. if we save predefined query the tab will be created again
+      // e.g. if we save predefined inquiry the tab will be created again
       // (because of new id) and
       // it will be without sql result and has default view - table.
       // That's why we need to restore data and view
       this.$nextTick(() => {
-        this.currentQuery.result = dataSet
-        this.currentQuery.view = tabView
+        this.currentInquiry.result = dataSet
+        this.currentInquiry.view = tabView
       })
 
       // Hide dialog
       this.$modal.hide('save')
 
       // Signal about saving
-      this.$root.$emit('querySaved')
+      this.$root.$emit('inquirySaved')
     },
     _keyListener (e) {
-      if (this.$route.path === '/editor') {
+      if (this.$route.path === '/workspace') {
         // Run query Ctrl+R or Ctrl+Enter
         if ((e.key === 'r' || e.key === 'Enter') && (e.ctrlKey || e.metaKey)) {
           e.preventDefault()
           if (!this.runDisabled) {
-            this.currentQuery.execute()
+            this.currentInquiry.execute()
           }
           return
         }
 
-        // Save query Ctrl+S
+        // Save inquiry Ctrl+S
         if (e.key === 's' && (e.ctrlKey || e.metaKey)) {
           e.preventDefault()
-          if (this.isUnsaved) {
-            this.checkQueryBeforeSave()
+          if (!this.isSaved) {
+            this.checkInquiryBeforeSave()
           }
           return
         }
       }
-      // New (blank) query Ctrl+B
+      // New (blank) inquiry Ctrl+B
       if (e.key === 'b' && (e.ctrlKey || e.metaKey)) {
         e.preventDefault()
-        this.createNewQuery()
+        this.createNewInquiry()
       }
     }
   }
@@ -212,7 +208,7 @@ nav {
   top: 0;
   left: 0;
   width: 100vw;
-  padding: 0 52px;
+  padding: 0 16px 0 52px;
   z-index: 999;
 }
 a {
@@ -237,4 +233,8 @@ button {
 #save-note img {
   margin: -3px 6px 0 0;
 }
+
+#nav-buttons {
+  display: flex;
+}
 </style>

src/views/Main/Workspace/Schema/index.vue

@@ -5,10 +5,12 @@
     </div>
     <div id="db">
       <div @click="schemaVisible = !schemaVisible" class="db-name">
-        <tree-chevron :expanded="schemaVisible"/>
+        <tree-chevron v-show="schema.length > 0" :expanded="schemaVisible"/>
         {{ dbName }}
       </div>
-        <db-uploader id="db-edit" type="small" />
+      <db-uploader id="db-edit" type="small" />
+      <export-icon tooltip="Export database" @click="exportToFile"/>
+      <add-table-icon @click="addCsv"/>
     </div>
     <div v-show="schemaVisible" class="schema">
       <table-description
@@ -18,14 +20,26 @@
         :columns="table.columns"
       />
     </div>
+
+    <!--Parse csv dialog  -->
+    <csv-import
+      ref="addCsv"
+      :file="file"
+      :db="$store.state.db"
+      dialog-name="addCsv"
+    />
   </div>
 </template>
 
 <script>
-import TableDescription from '@/components/TableDescription'
+import fIo from '@/lib/utils/fileIo'
+import TableDescription from './TableDescription'
 import TextField from '@/components/TextField'
 import TreeChevron from '@/components/svg/treeChevron'
 import DbUploader from '@/components/DbUploader'
+import ExportIcon from '@/components/svg/export'
+import AddTableIcon from '@/components/svg/addTable'
+import CsvImport from '@/components/CsvImport'
 
 export default {
   name: 'Schema',
@@ -33,28 +47,45 @@ export default {
     TableDescription,
     TextField,
     TreeChevron,
-    DbUploader
+    DbUploader,
+    ExportIcon,
+    AddTableIcon,
+    CsvImport
   },
   data () {
     return {
       schemaVisible: true,
-      filter: null
+      filter: null,
+      file: null
     }
   },
   computed: {
     schema () {
-      if (!this.$store.state.schema) {
+      if (!this.$store.state.db.schema) {
         return []
       }
 
       return !this.filter
-        ? this.$store.state.schema
-        : this.$store.state.schema.filter(
+        ? this.$store.state.db.schema
+        : this.$store.state.db.schema.filter(
           table => table.name.toUpperCase().indexOf(this.filter.toUpperCase()) !== -1
         )
     },
     dbName () {
-      return this.$store.state.dbName
+      return this.$store.state.db.dbName
+    }
+  },
+  methods: {
+    exportToFile () {
+      this.$store.state.db.export(`${this.dbName}.sqlite`)
+    },
+    async addCsv () {
+      this.file = await fIo.getFileFromUser('.csv')
+      await this.$nextTick()
+      const csvImport = this.$refs.addCsv
+      csvImport.reset()
+      await csvImport.previewCsv()
+      csvImport.open()
     }
   }
 }
@@ -78,7 +109,7 @@ export default {
   width: 100%;
   height: 100px;
   box-sizing: border-box;
-  background-image: linear-gradient(white 73%, transparent);;
+  background-image: linear-gradient(white 73%, rgba(255, 255, 255, 0));
   z-index: 2;
 }
 .schema, .db-name {
@@ -95,6 +126,11 @@ export default {
 
 .db-name {
   cursor: pointer;
+  margin-right: 6px;
+  max-width: 150px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  flex-shrink: 0;
 }
 
 .db-name:hover .chevron-icon path,