Merge branch 'master' of github.com:lana-k/sqliteviz

* Build SQLite 3.41.0

* Update pivot_vtab

* Add Pearson correlation coefficient function extension, build

* Add an easy way to running test locally without Nodejs

* Use RSS sum to pick top2 processes for the report

* Try previous Ubuntu LTS as a workaround for Firefox worker not starting

.eslintrc.js

@@ -12,13 +12,15 @@ module.exports = {
   },
   rules: {
     'no-console': process.env.NODE_ENV === 'production' ? 'warn' : 'off',
-    'no-debugger': process.env.NODE_ENV === 'production' ? 'warn' : 'off'
+    'no-debugger': process.env.NODE_ENV === 'production' ? 'warn' : 'off',
+    'no-case-declarations': 'off',
+    'max-len': [2, 100, 4, { ignoreUrls: true }]
   },
   overrides: [
     {
       files: [
         '**/__tests__/*.{j,t}s?(x)',
-        '**/tests/unit/**/*.spec.{j,t}s?(x)'
+        '**/tests/**/*.spec.{j,t}s?(x)'
       ],
       env: {
         mocha: true

.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

@@ -1,4 +1,4 @@
-name: Deploy to GitHub Pages
+name: Create release
 on:
   workflow_dispatch:
   push:
@@ -7,23 +7,39 @@ on:
 
 jobs:
   deploy:
-    name: Deploy to GitHub Pages
+    name: Create release
     runs-on: ubuntu-latest    
     steps:
-    - uses: actions/checkout@master
+    - uses: actions/checkout@v2
     - name: Use Node.js
       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
         npm run build
 
-    - name: Deploy 🚀
-      uses: JamesIves/github-pages-deploy-action@3.6.2
+    - name: Create archives
+      run: |
+        cd dist
+        zip -9 -r ../dist.zip . -x "js/*.map" -x "/*.map"
+        zip -9 -r  ../dist_map.zip .
+
+    - 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:
-        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
+        artifacts: "dist.zip,dist_map.zip"
+        token: ${{ secrets.GITHUB_TOKEN }}
+        bodyFile: "CHANGELOG.md"

.github/workflows/test.yml

@@ -0,0 +1,37 @@
+name: Run tests
+on:
+  workflow_dispatch:
+  push:
+    branches:
+    - 'master'
+  pull_request:
+    branches:
+    - 'master'
+
+jobs:
+  test:
+    name: Run tests
+    runs-on: ubuntu-20.04
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js
+      uses: actions/setup-node@v1
+      with:
+        node-version: 10.x
+    - 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 -- --no-fix
+
+    - name: Run karma tests
+      run: npm run test

.gitignore

@@ -1,6 +1,7 @@
 .DS_Store
 node_modules
 /dist
+/coverage
 
 # local env files
 .env.local

Dockerfile.test

@@ -0,0 +1,24 @@
+# An easy way to run tests locally without Nodejs installed:
+#
+#     docker build -t sqliteviz/test -f Dockerfile.test .
+#
+
+FROM node:12
+
+RUN set -ex; \
+    apt update; \
+    apt install -y chromium firefox-esr; \
+    npm install -g npm@7
+
+WORKDIR /tmp/build
+
+COPY package.json package-lock.json ./
+COPY lib lib
+RUN npm install
+
+COPY . .
+
+RUN set -ex; \
+    sed -i 's/browsers: \[.*\],/browsers: ['"'FirefoxHeadlessTouch'"'],/' karma.conf.js
+
+RUN npm run lint -- --no-fix && npm run test

LICENSE

@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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+   limitations under the License.

README.md

@@ -1,21 +1,43 @@
+<p align="center">
+   <img src="src/assets/images/Logo.svg"/>
+</p>
+
 # sqliteviz
 
-**Note: This is a work-in-progress project.**
+Sqliteviz is a single-page offline-first PWA for fully client-side visualisation of SQLite databases or CSV files.
 
-Sqliteviz is a single-page application for fully client-side visualisation of SQLite databases.
+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
+- export result set to CSV file
+- manage inquiries and run them against different databases
+- import/export inquiries from/to a JSON file
+- export a modified SQLite database
+- use it offline from your OS application menu like any other desktop app
+
+https://user-images.githubusercontent.com/24638357/128249848-f8fab0f5-9add-46e0-a9c1-dd5085a8623e.mp4
+
+## Quickstart
+The latest release of sqliteviz is deployed on [sqliteviz.com/app][6].
+
+## Wiki
+For user documentation, check out sqliteviz [documentation][7].
+
+## Motivation
 It's a kind of middleground between [Plotly Falcon][1] and [Redash][2].
-It is built on top of [react-chart-editor][3] and [sql.js][4] in [Vue.js][5]. 
 
-## Features
-
-1. Ad-hoc and prepared visualisation of a SQLite database using flexibility
-   of SQL and richness of Plotly's `react-chart-editor` 
-2. Visualisation pallete, SQL and chart definitions, kept in local
-   storage with import/export
-3. Integration-side provided pallete
+## Components
+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
+[5]: https://github.com/vuejs/vue
+[6]: https://sqliteviz.com/app/
+[7]: https://sqliteviz.com/docs
+[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

@@ -0,0 +1,203 @@
+// Karma configuration
+'use strict'
+const path = require('path')
+const VueLoaderPlugin = require('vue-loader/lib/plugin')
+
+function resolve (dir) {
+  return path.join(__dirname, dir)
+}
+
+module.exports = function (config) {
+  config.set({
+    // base path that will be used to resolve all patterns (eg. files, exclude)
+    basePath: '',
+
+    // frameworks to use
+    // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
+    frameworks: ['mocha', 'sinon-chai'],
+
+    // list of files / patterns to load in the browser
+    files: [
+      './karma.files.js',
+      {
+        pattern: 'node_modules/sql.js/dist/sql-wasm.wasm',
+        watched: false,
+        included: false,
+        served: true,
+        nocache: false
+      }
+    ],
+
+    // list of files / patterns to exclude
+    exclude: [],
+
+    // preprocess matching files before serving them to the browser
+    // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
+    preprocessors: {
+      './karma.files.js': ['webpack']
+    },
+
+    // test results reporter to use
+    // possible values: 'dots', 'progress'
+    // available reporters: https://npmjs.org/browse/keyword/karma-reporter
+    reporters: ['spec', 'coverage'],
+
+    coverageReporter: {
+      dir: 'coverage',
+      reporters: [{ type: 'lcov', subdir: '.' }, { type: 'text-summary' }]
+    },
+
+    // !!DONOT delete this reporter, or vue-cli-addon-ui-karma doesnot work
+    jsonResultReporter: {
+      outputFile: 'report/karma-result.json',
+      isSynchronous: true
+    },
+
+    junitReporter: {
+      outputDir: 'report', // results will be saved as $outputDir/$browserName.xml
+      // if included, results will be saved as $outputDir/$browserName/$outputFile
+      outputFile: undefined,
+      suite: '', // suite will become the package name attribute in xml testsuite element
+      useBrowserName: true, // add browser name to report and classes names
+      // function (browser, result) to customize the name attribute in xml testcase element
+      nameFormatter: undefined,
+      // function (browser, result) to customize the classname attribute in xml testcase element
+      classNameFormatter: undefined,
+      properties: {} // key value pairs add to the <properties> section of the report
+    },
+
+    // web server port
+    port: 9876,
+
+    // enable / disable colors in the output (reporters and logs)
+    colors: true,
+
+    // level of logging
+    // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN ||
+    // config.LOG_INFO || config.LOG_DEBUG
+    logLevel: config.LOG_INFO,
+
+    // enable / disable watching file and executing tests whenever any file changes
+    autoWatch: false,
+
+    customLaunchers: {
+      FirefoxHeadlessTouch: {
+        base: 'FirefoxHeadless',
+        prefs: {
+          'dom.w3c_touch_events.enabled': 1,
+          'dom.events.asyncClipboard.clipboardItem': true
+        }
+      }
+    },
+    // start these browsers
+    // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
+    browsers: ['ChromiumHeadless', 'FirefoxHeadlessTouch'],
+
+    // Continuous Integration mode
+    // if true, Karma captures browsers, runs the tests and exits
+    singleRun: true,
+
+    // Concurrency level
+    // how many browser should be started simultaneous
+    concurrency: 2,
+
+    client: {
+      captureConsole: true,
+      mocha: {
+        timeout: 7000
+      }
+    },
+    browserConsoleLogOptions: {
+      terminal: true,
+      level: ''
+    },
+    webpack: {
+      mode: 'development',
+      entry: './src/main.js',
+      resolve: {
+        extensions: ['.js', '.vue', '.json'],
+        alias: {
+          vue$: 'vue/dist/vue.esm.js',
+          '@': resolve('src')
+        }
+      },
+      module: {
+        rules: [
+          {
+            test: /\.js$/,
+            exclude: /(node_modules|bower_components)/,
+            use: [
+              {
+                loader: 'babel-loader'
+              }
+            ]
+          },
+          {
+            test: /\.js$/,
+            include: /src/,
+            exclude: /(node_modules|bower_components|\.spec\.js$)/,
+            use: [
+              {
+                loader: 'istanbul-instrumenter-loader',
+                options: {
+                  esModules: true
+                }
+              }
+            ]
+          },
+          {
+            test: /worker\.js$/,
+            loader: 'worker-loader'
+          },
+          {
+            test: /\.(png|jpe?g|gif|svg)(\?.*)?$/,
+            loader: 'url-loader'
+          },
+          {
+            test: /\.vue$/,
+            loader: 'vue-loader',
+            options: {
+              loaders: {
+                js: 'babel-loader'
+              },
+              postLoaders: {
+                js: 'istanbul-instrumenter-loader?esModules=true'
+              }
+            }
+          },
+          {
+            test: /\.css$/,
+            use: ['vue-style-loader', 'css-loader']
+          },
+          {
+            test: /\.scss$/,
+            use: ['vue-style-loader', 'css-loader', 'sass-loader']
+          },
+          {
+            test: /\.(woff2?|eot|ttf|otf)(\?.*)?$/,
+            loader: 'url-loader',
+            options: {
+              limit: 10000,
+              name: resolve('fonts/[name].[hash:7].[ext]')
+            }
+          }
+        ]
+      },
+      plugins: [new VueLoaderPlugin()],
+      node: {
+        fs: 'empty'
+      }
+    },
+    webpackMiddleware: {
+      watchOptions: {
+        ignored: /node_modules/
+      }
+    },
+    proxies: {
+      '/_karma_webpack_/sql-wasm.wasm': '/base/node_modules/sql.js/dist/sql-wasm.wasm',
+      '/base/sql-wasm.wasm': '/base/node_modules/sql.js/dist/sql-wasm.wasm'
+    }
+  })
+  // Fix the timezone
+  process.env.TZ = 'Europe/Amsterdam'
+}

karma.files.js

@@ -0,0 +1,21 @@
+import Vue from 'vue'
+import { VuePlugin } from 'vuera'
+import VModal from 'vue-js-modal'
+
+Vue.use(VuePlugin)
+Vue.use(VModal)
+Vue.config.productionTip = false
+
+// require all test files (files that ends with .spec.js)
+const testsContext = require.context('./tests', true, /\.spec.js$/)
+
+// Read more about why we need to call testContext:
+// https://www.npmjs.com/package/require-context#context-api
+testsContext.keys().forEach(testsContext)
+
+// require all src files except main.js and router/index.js for coverage.
+// you can also change this to match only the subset of files that
+// you want coverage for.
+// We don't include router/index.js to avoid installing VueRouter globally in tests
+const srcContext = require.context('./src', true, /^\.\/(?!(main|(router(\/)?(index)?))(\.js)?$)/)
+srcContext.keys().forEach(srcContext)

lib/sql-js/.dockerignore

@@ -0,0 +1,2 @@
+benchmark
+dist

lib/sql-js/Dockerfile

@@ -0,0 +1,9 @@
+FROM emscripten/emsdk:3.0.1
+
+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 +1,105 @@
+# 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
+2. [FTS3/FTS4][15] -- older virtual table modules for full-text search
+3. [JSON1][16] -- scalar, aggregate and table-valued functions for managing JSON data
+
+SQLite [contribution extensions][17]:
+
+1. [extension-functions][18] -- mathematical and string extension functions for SQL queries.
+
+   Math: `acos`, `asin`, `atan`, `atn2`, `atan2`, `acosh`, `asinh`, `atanh`, `difference`,
+   `degrees`, `radians`, `cos`, `sin`, `tan`, `cot`, `cosh`, `sinh`, `tanh`, `coth`,
+   `exp`, `log`, `log10`, `power`, `sign`, `sqrt`, `square`, `ceil`, `floor`, `pi`.
+
+   String: `replicate`, `charindex`, `leftstr`, `rightstr`, `ltrim`, `rtrim`, `trim`,
+   `replace`, `reverse`, `proper`, `padl`, `padr`, `padc`, `strfilter`.
+
+   Aggregate: `stdev`, `variance`, `mode`, `median`, `lower_quartile`, `upper_quartile`.
+
+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])
+5. `percentile` function ([percentile.c][13])
+6. `decimal`, `decimal_cmp`, `decimal_add`, `decimal_sub` and `decimal_mul` functions
+   ([decimal.c][14])
+
+SQLite 3rd party extensions included:
+
+1. [pivot_vtab][5] -- a pivot virtual table
+2. `pearson` correlation coefficient function extension from [sqlean][21]
+   (which is part of [squib][20])
+
+To ease the step to have working clone locally, the build is committed into
+the repository.
+
+Examples of queries involving these extensions can be found in the test suite in
+[sqliteExtensions.spec.js][19].
+
+## 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
+[13]: https://sqlite.org/src/file/ext/misc/percentile.c
+[14]: https://sqlite.org/src/file/ext/misc/decimal.c
+[15]: https://sqlite.org/fts3.html
+[16]: https://sqlite.org/json1.html
+[17]: https://sqlite.org/contrib/
+[18]: https://sqlite.org/contrib//download/extension-functions.c?get=25
+[19]: https://github.com/lana-k/sqliteviz/blob/master/tests/lib/database/sqliteExtensions.spec.js
+[20]: https://github.com/mrwilson/squib/blob/master/pearson.c
+[21]: https://github.com/nalgeon/sqlean/blob/incubator/src/pearson.c

lib/sql-js/benchmark/.gitignore

@@ -0,0 +1,4 @@
+/lib/build-*
+/lib/dist
+/build-*-result.json
+/sample.csv

lib/sql-js/benchmark/Dockerfile

@@ -0,0 +1,19 @@
+FROM node:14-bullseye
+
+RUN set -ex; \
+    echo 'deb http://deb.debian.org/debian unstable main' \
+        > /etc/apt/sources.list.d/unstable.list; \
+    apt-get update; \
+    apt-get install -y -t unstable firefox; \
+    apt-get install -y chromium
+
+WORKDIR /tmp/build
+
+COPY package.json ./
+COPY lib/dist lib/dist
+COPY lib/package.json lib/package.json
+RUN npm install
+
+COPY . .
+
+CMD npm run benchmark

lib/sql-js/benchmark/README.md

@@ -0,0 +1,25 @@
+# SQLite WebAssembly build micro-benchmark
+
+This directory contains a micro-benchmark for evaluating SQLite WebAssembly
+builds performance on read and write SQL queries, run from `make.sh` script. If
+the script has permission to `nice` processes and [Procpath][1] is installed,
+e.g. it is run with `sudo -E env PATH=$PATH ./make.sh`, it'll `renice` all
+processes running inside the benchmark containers. It can also serve as a smoke
+test (e.g. for memory leaks).
+
+The benchmark operates on a set of SQLite WebAssembly builds expected in
+`lib/build-$NAME` directories each containing `sql-wasm.js` and
+`sql-wasm.wasm`. Then it creates a Docker image for each, and runs the
+benchmark in Firefox and Chromium using Karma in the container.
+
+After successful run, the benchmark produces the following per each build:
+
+- `build-$NAME-result.json`
+- `build-$NAME.sqlite` (if Procpath is installed)
+- `build-$NAME.svg` (if Procpath is installed)
+
+These files can be analysed using `result-analysis.ipynb` Jupyter notebook.
+The SVG is a chart with CPU and RSS usage of each test container (i.e. Chromium
+run, then Firefox run per container).
+
+[1]: https://pypi.org/project/Procpath/

lib/sql-js/benchmark/karma.conf.js

@@ -0,0 +1,52 @@
+module.exports = function (config) {
+  const timeout = 15 * 60 * 1000
+  config.set({
+
+    frameworks: ['mocha'],
+
+    files: [
+      'suite.js',
+      { pattern: 'node_modules/sql.js/dist/sql-wasm.wasm', served: true, included: false },
+      { pattern: 'sample.csv', served: true, included: false }
+    ],
+
+    reporters: ['progress', 'json-to-file'],
+
+    singleRun: true,
+
+    customLaunchers: {
+      ChromiumHeadlessNoSandbox: { base: 'ChromiumHeadless', flags: ['--no-sandbox'] }
+    },
+    browsers: ['ChromiumHeadlessNoSandbox', 'FirefoxHeadless'],
+    concurrency: 1,
+
+    browserDisconnectTimeout: timeout,
+    browserNoActivityTimeout: timeout,
+    captureTimeout: timeout,
+    browserSocketTimeout: timeout,
+    pingTimeout: timeout,
+    client: {
+      captureConsole: true,
+      mocha: { timeout: timeout }
+    },
+
+    logLevel: config.LOG_INFO,
+    browserConsoleLogOptions: { terminal: true, level: config.LOG_INFO },
+
+    preprocessors: { 'suite.js': [ 'webpack' ] },
+    webpack: {
+      mode: 'development',
+      module: {
+        noParse: [ __dirname + '/node_modules/benchmark/benchmark.js' ]
+      },
+      node: { fs: 'empty' }
+    },
+
+    proxies: {
+      '/sql-wasm.wasm': '/base/node_modules/sql.js/dist/sql-wasm.wasm'
+    },
+
+    jsonToFileReporter: { outputPath: '.', fileName: 'suite-result.json' }
+
+  })
+}

lib/sql-js/benchmark/lib/package.json

@@ -0,0 +1,5 @@
+{
+  "name": "sql.js",
+  "main": "./dist/sql-wasm.js",
+  "private": true
+}

lib/sql-js/benchmark/make.sh

@@ -0,0 +1,47 @@
+#!/bin/bash -e
+
+cleanup () {
+  rm -rf lib/dist "$renice_flag_file"
+  docker rm -f sqljs-benchmark-run 2> /dev/null || true
+}
+trap cleanup EXIT
+
+if [ ! -f sample.csv ]; then
+  wget --header="accept-encoding: gzip" -q -O- \
+    https://github.com/plotly/datasets/raw/547090bd/wellspublic.csv \
+    | gunzip -c > sample.csv
+fi
+
+PLAYBOOK=procpath/karma_docker.procpath
+
+# for renice to work run like "sudo -E env PATH=$PATH ./make.sh"
+test_ni=$(nice -n -5 nice)
+if [ $test_ni == -5 ]; then
+  renice_flag_file=$(mktemp)
+fi
+{
+  while [ -f $renice_flag_file ]; do
+    procpath --logging-level ERROR play -f $PLAYBOOK renice:watch
+  done
+} &
+
+shopt -s nullglob
+for d in lib/build-* ; do
+  rm -rf lib/dist
+  cp -r $d lib/dist
+  sample_name=$(basename $d)
+
+  docker build -t sqliteviz/sqljs-benchmark .
+  docker rm sqljs-benchmark-run 2> /dev/null || true
+  docker run -d -it --cpus 2 --name sqljs-benchmark-run sqliteviz/sqljs-benchmark
+  {
+    rm -f ${sample_name}.sqlite
+    procpath play -f $PLAYBOOK -o database_file=${sample_name}.sqlite track:record
+    procpath play -f $PLAYBOOK -o database_file=${sample_name}.sqlite \
+      -o plot_file=${sample_name}.svg track:plot
+  } &
+
+  docker attach sqljs-benchmark-run
+  docker cp sqljs-benchmark-run:/tmp/build/suite-result.json ${sample_name}-result.json
+  docker rm sqljs-benchmark-run
+done

lib/sql-js/benchmark/package.json

@@ -0,0 +1,23 @@
+{
+  "name": "sqlite-webassembly-microbenchmark",
+  "private": true,
+  "dependencies": {
+    "@babel/core" : "^7.14.8",
+    "babel-loader": "^8.2.2",
+    "benchmark": "^2.1.4",
+    "lodash": "^4.17.4",
+    "papaparse": "^5.3.1",
+    "mocha": "^9.0.3",
+    "karma": "^6.3.4",
+    "karma-chrome-launcher": "^3.1.0",
+    "karma-firefox-launcher": "^2.1.1",
+    "karma-json-to-file-reporter" : "^1.0.1",
+    "karma-mocha": "^2.0.1",
+    "karma-webpack": "^4.0.2",
+    "webpack": "^4.46.0",
+    "sql.js": "file:./lib"
+  },
+  "scripts": {
+    "benchmark": "karma start karma.conf.js"
+  }
+}

lib/sql-js/benchmark/procpath/karma_docker.procpath

@@ -0,0 +1,28 @@
+# This command may run when "sqljs-benchmark-run" does not yet exist or run
+[renice:watch]
+interval: 2
+repeat: 30
+environment:
+  ROOT_PID=docker inspect -f "{{.State.Pid}}" sqljs-benchmark-run 2> /dev/null || true
+query:
+  PIDS=$..children[?(@.stat.pid in [$ROOT_PID])]..pid
+command:
+  echo $PIDS | tr , '\n' | xargs --no-run-if-empty -I{} -- renice -n -5 -p {}
+
+# Expected input arguments: database_file
+[track:record]
+interval: 1
+stop_without_result: 1
+environment:
+  ROOT_PID=docker inspect -f "{{.State.Pid}}" sqljs-benchmark-run
+query:
+  $..children[?(@.stat.pid == $ROOT_PID)]
+pid_list: $ROOT_PID
+
+# Expected input arguments: database_file, plot_file
+[track:plot]
+moving_average_window: 5
+title: Chromium vs Firefox (№1 RSS, №2 CPU)
+custom_query_file:
+  procpath/top2_rss.sql
+  procpath/top2_cpu.sql

lib/sql-js/benchmark/procpath/top2_cpu.sql

@@ -0,0 +1,29 @@
+WITH diff_all AS (
+    SELECT
+        record_id,
+        ts,
+        stat_pid,
+        stat_utime + stat_stime - LAG(stat_utime + stat_stime) OVER (
+            PARTITION BY stat_pid
+            ORDER BY record_id
+        ) tick_diff,
+        ts - LAG(ts) OVER (
+            PARTITION BY stat_pid
+            ORDER BY record_id
+        ) ts_diff
+    FROM record
+), diff AS (
+    SELECT * FROM diff_all WHERE tick_diff IS NOT NULL
+), one_time_pid_condition AS (
+    SELECT stat_pid
+    FROM record
+    GROUP BY 1
+    ORDER BY SUM(stat_utime + stat_stime) DESC
+    LIMIT 2
+)
+SELECT
+    ts,
+    stat_pid pid,
+    100.0 * tick_diff / (SELECT value FROM meta WHERE key = 'clock_ticks') / ts_diff value
+FROM diff
+JOIN one_time_pid_condition USING(stat_pid)

lib/sql-js/benchmark/procpath/top2_rss.sql

@@ -0,0 +1,13 @@
+WITH one_time_pid_condition AS (
+    SELECT stat_pid
+    FROM record
+    GROUP BY 1
+    ORDER BY SUM(stat_rss) DESC
+    LIMIT 2
+)
+SELECT
+    ts,
+    stat_pid pid,
+    stat_rss / 1024.0 / 1024 * (SELECT value FROM meta WHERE key = 'page_size') value
+FROM record
+JOIN one_time_pid_condition USING(stat_pid)

lib/sql-js/benchmark/result-analysis.ipynb

@@ -0,0 +1,205 @@
+{
+  "cells": [
+    {
+      "cell_type": "code",
+      "source": [
+        "import json\n",
+        "from pathlib import Path\n",
+        "\n",
+        "import pandas\n",
+        "from IPython.display import display, IFrame, Markdown\n",
+        "from plotly import express"
+      ],
+      "outputs": [],
+      "execution_count": null,
+      "metadata": {
+        "collapsed": false,
+        "outputHidden": false,
+        "inputHidden": true
+      }
+    },
+    {
+      "cell_type": "code",
+      "source": [
+        "render_format = 'svg'\n",
+        "benchmark_path = Path()\n",
+        "df_dict = {}\n",
+        "stat_dict = {}\n",
+        "for p in benchmark_path.glob('build-*-result.json'):\n",
+        "    build_name = p.stem.split('-', 2)[1]\n",
+        "    for browser_data in json.loads(p.read_text()):\n",
+        "        browser_name = f'{browser_data[\"browser\"][\"name\"]} {browser_data[\"browser\"][\"major\"]}'\n",
+        "        browser_name = browser_name.lower().replace('chrome headless', 'chromium')\n",
+        "        for result in (r for i, r in browser_data['result'].items() if i.isdigit()):\n",
+        "            key = build_name, browser_name, result['name']\n",
+        "            df_dict[key] = result['stats']['sample']\n",
+        "            stat_dict[key] = result['stats']\n",
+        "\n",
+        "min_sample_size = min(len(v) for v in df_dict.values())\n",
+        "df_dict = {k: v[:min_sample_size] for k, v in df_dict.items()}\n",
+        "            \n",
+        "wide_df = pandas.DataFrame(df_dict).reset_index()\n",
+        "df = pandas.melt(\n",
+        "    wide_df, \n",
+        "    id_vars='index', \n",
+        "    var_name=['build', 'browser', 'test'], \n",
+        "    value_name='duration',\n",
+        ")\n",
+        "df = df.rename(columns={'index': 'run'})\n",
+        "df.sort_values(['build', 'run'], inplace=True)"
+      ],
+      "outputs": [],
+      "execution_count": null,
+      "metadata": {
+        "inputHidden": true,
+        "outputExpanded": false
+      }
+    },
+    {
+      "cell_type": "markdown",
+      "source": [
+        "# sql.js build comparison\n",
+        "\n",
+        "<style>\n",
+        "@page {\n",
+        "  size: 215mm 297mm;\n",
+        "  margin: 0;\n",
+        "}\n",
+        "</style>"
+      ],
+      "metadata": {}
+    },
+    {
+      "cell_type": "code",
+      "source": [
+        "stat_df = pandas.DataFrame(stat_dict)\n",
+        "stat_df = stat_df.loc[['mean', 'rme']].transpose()\n",
+        "stat_df.index = stat_df.index.set_names(['build', 'browser', 'test'])\n",
+        "stat_df = stat_df.reset_index().sort_values(['test', 'browser'], ascending=False)\n",
+        "for index, row in stat_df.iterrows():\n",
+        "    print('\\t'.join([\n",
+        "        row['build'],\n",
+        "        row['browser'],\n",
+        "        row['test'],\n",
+        "        f'{row[\"mean\"]:.2f} s ± {row[\"rme\"]:.1f}%'\n",
+        "    ]))"
+      ],
+      "outputs": [],
+      "execution_count": null,
+      "metadata": {
+        "inputHidden": true,
+        "outputExpanded": false
+      }
+    },
+    {
+      "cell_type": "code",
+      "source": [
+        "fig = express.box(df, x='browser', y='duration', points='all', color='build', facet_row='test')\n",
+        "fig.update_yaxes(matches=None)\n",
+        "fig.show(render_format)"
+      ],
+      "outputs": [],
+      "execution_count": null,
+      "metadata": {
+        "inputHidden": true,
+        "outputExpanded": false
+      }
+    },
+    {
+      "cell_type": "code",
+      "source": [
+        "fig = express.line(\n",
+        "    df, x='run', y='duration', color='build', facet_col='browser', facet_row='test'\n",
+        ")\n",
+        "fig.update_yaxes(matches=None)\n",
+        "fig.show(render_format)"
+      ],
+      "outputs": [],
+      "execution_count": null,
+      "metadata": {
+        "inputHidden": true,
+        "outputExpanded": false
+      }
+    },
+    {
+      "cell_type": "code",
+      "source": [
+        "plot_df = df.groupby(['browser', 'build', 'test'])['duration'].mean().reset_index()\n",
+        "plot_df['pct'] = (\n",
+        "    plot_df\n",
+        "    .groupby(['browser', 'test'])['duration']\n",
+        "    .pct_change()\n",
+        "    .fillna('')\n",
+        "    .map(lambda v: '{:.2%}'.format(v) if v else v)\n",
+        ")\n",
+        "fig = express.bar(\n",
+        "    plot_df, \n",
+        "    x='browser', \n",
+        "    y='duration', \n",
+        "    color='build', \n",
+        "    text='pct', \n",
+        "    barmode='overlay', \n",
+        "    facet_row='test',\n",
+        ")\n",
+        "fig.update_yaxes(matches=None)\n",
+        "fig.show(render_format)"
+      ],
+      "outputs": [],
+      "execution_count": null,
+      "metadata": {
+        "inputHidden": true,
+        "outputExpanded": false
+      }
+    },
+    {
+      "cell_type": "code",
+      "source": [
+        "for p in sorted(benchmark_path.glob('build-*.svg')):\n",
+        "    display(Markdown(p.stem))\n",
+        "    display(IFrame(p, 640, 480))"
+      ],
+      "outputs": [],
+      "execution_count": null,
+      "metadata": {
+        "collapsed": false,
+        "outputHidden": false,
+        "inputHidden": true,
+        "outputExpanded": false
+      }
+    }
+  ],
+  "metadata": {
+    "kernelspec": {
+      "name": "stats",
+      "language": "python",
+      "display_name": "Stats (Python 3.10)"
+    },
+    "language_info": {
+      "name": "python",
+      "version": "3.10.7",
+      "mimetype": "text/x-python",
+      "codemirror_mode": {
+        "name": "ipython",
+        "version": 3
+      },
+      "pygments_lexer": "ipython3",
+      "nbconvert_exporter": "python",
+      "file_extension": ".py"
+    },
+    "widgets": {
+      "application/vnd.jupyter.widget-state+json": {
+        "state": {},
+        "version_major": 2,
+        "version_minor": 0
+      }
+    },
+    "kernel_info": {
+      "name": "stats"
+    },
+    "nteract": {
+      "version": "0.14.5"
+    }
+  },
+  "nbformat": 4,
+  "nbformat_minor": 5
+}

lib/sql-js/benchmark/suite.js

@@ -0,0 +1,140 @@
+import benchmark from 'benchmark'
+import initSqlJs from 'sql.js'
+import lodash from 'lodash'
+import Papa from 'papaparse'
+import useragent from 'ua-parser-js'
+
+
+describe('SQLite build benchmark', function () {
+  let parsedCsv
+  let sqlModule
+  let selectDb
+
+  before(async function () {
+    parsedCsv = await parseCsv('http://localhost:9876/base/sample.csv')
+    sqlModule = await initSqlJs()
+
+    selectDb = new sqlModule.Database()
+    importToTable(selectDb, parsedCsv)
+  })
+
+  function benchmarkImport () {
+    const db = new sqlModule.Database()
+    try {
+      importToTable(db, parsedCsv)
+    } finally {
+      db.close()
+    }
+  }
+
+  function benchmarkSelect () {
+    const result = selectDb.exec(`
+      SELECT county, AVG(avg_depth) avg_depth_c
+      FROM (
+        SELECT s.county, s.town, COUNT(*) cnt, AVG(s.DrilledDepth) avg_depth
+        FROM csv_import s
+        JOIN csv_import USING(hole)
+        WHERE s.town IS NOT NULL
+        GROUP BY 1, 2
+        ORDER BY 4 DESC
+      )
+      GROUP BY 1
+      ORDER BY 2 DESC
+    `)
+    console.assert(result.values.length == 56, 'Unexpected size of result set')
+  }
+
+  it('run', async function () {
+    const suite = createSuite()
+    suite.add('import', { initCount: 3, minSamples: 50, fn: benchmarkImport })
+    suite.add('select', { initCount: 3, minSamples: 50, fn: benchmarkSelect })
+    await run(suite)
+  })
+
+})
+
+
+function importToTable (db, parsedCsv, chunkSize = 1024) {
+  const columnListString = parsedCsv.meta.fields.join(', ')
+  db.exec(`CREATE TABLE csv_import(${columnListString})`)
+
+  const params = parsedCsv.meta.fields.map(name => '?').join(', ')
+  const insertStmt = db.prepare(`INSERT INTO csv_import VALUES(${params})`)
+  chunkArray(parsedCsv.data, chunkSize).map(function (chunk) {
+    db.exec('BEGIN')
+    chunk.map(row => insertStmt.run(Object.values(row)))
+    db.exec('COMMIT')
+  })
+}
+
+
+class PromiseWrapper {
+  constructor() {
+    this.promise = new Promise((resolve, reject) => {
+      this.reject = reject
+      this.resolve = resolve
+    })
+  }
+}
+
+function parseCsv(url) {
+  return new Promise((resolve, reject) => {
+    Papa.parse(url, {
+      header: true,
+      download: true,
+      skipEmptyLines: 'greedy',
+      complete: results => resolve(results),
+      error: (error, file) => reject(error)
+    })
+  })
+}
+
+function chunkArray (arr, size) {
+  return arr.reduce(function (result, value, index) {
+    const chunkIndex = Math.floor(index / size)
+
+    if(!(chunkIndex in result)) {
+      result[chunkIndex] = []
+    }
+    result[chunkIndex].push(value)
+
+    return result
+  }, [])
+}
+
+
+function createSuite () {
+  // Combined workaround from:
+  // - https://github.com/bestiejs/benchmark.js/issues/106
+  // - https://github.com/bestiejs/benchmark.js/issues/237
+
+  // Benchmark could not pick up lodash otherwise
+  const bm = benchmark.runInContext({ _: lodash })
+  // Avoid `ReferenceError: Benchmark is not defined` error because Benchmark is assumed
+  // to be in window
+  window.Benchmark = bm
+
+  return new bm.Suite()
+}
+
+function run (suite) {
+  const suiteResult = new PromiseWrapper()
+  suite
+    .on('cycle', function (event) {
+      console.info(String(event.target))
+    })
+    .on('complete', function () {
+      console.log(JSON.stringify({
+        browser: useragent(navigator.userAgent).browser,
+        result: this.filter('successful')
+      }))
+      suiteResult.resolve()
+    })
+    .on('error', function (event) {
+      console.error('Benchmark failed', String(event.target))
+      suiteResult.reject()
+    })
+    .run({async: true})
+
+  return suiteResult.promise
+}

lib/sql-js/build.py

@@ -0,0 +1,88 @@
+import logging
+import subprocess
+from pathlib import Path
+
+# See the setting descriptions on these pages:
+# - https://emscripten.org/docs/optimizing/Optimizing-Code.html
+# - https://github.com/emscripten-core/emscripten/blob/main/src/settings.js
+cflags = (
+    # SQLite configuration
+    '-DSQLITE_DEFAULT_CACHE_SIZE=-65536',  # 64 MiB
+    '-DSQLITE_DEFAULT_MEMSTATUS=0',
+    '-DSQLITE_DEFAULT_SYNCHRONOUS=0',
+    '-DSQLITE_DISABLE_LFS',
+    '-DSQLITE_DQS=0',
+    '-DSQLITE_ENABLE_FTS3',
+    '-DSQLITE_ENABLE_FTS3_PARENTHESIS',
+    '-DSQLITE_ENABLE_FTS5',
+    '-DSQLITE_ENABLE_NORMALIZE',
+    '-DSQLITE_EXTRA_INIT=extra_init',
+    '-DSQLITE_OMIT_DEPRECATED',
+    '-DSQLITE_OMIT_LOAD_EXTENSION',
+    '-DSQLITE_OMIT_SHARED_CACHE',
+    '-DSQLITE_THREADSAFE=0',
+    # Compile-time optimisation
+    '-Os',  # reduces the code size about in half comparing to -O2
+    '-flto',
+)
+emflags = (
+    # Base
+    '--memory-init-file', '0',
+    '-s', 'ALLOW_TABLE_GROWTH=1',
+    # WASM
+    '-s', 'WASM=1',
+    '-s', 'ALLOW_MEMORY_GROWTH=1',
+    '-s', 'ENVIRONMENT=web,worker',
+    # Link-time optimisation
+    '-Os',
+    '-flto',
+    # 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.o',
+    ])
+    logging.info('Building LLVM bitcode for extension-functions.c')
+    subprocess.check_call([
+        'emcc',
+        *cflags,
+        '-c', src / 'extension-functions.c',
+        '-o', out / 'extension-functions.o',
+    ])
+
+    logging.info('Building WASM from bitcode')
+    subprocess.check_call([
+        'emcc',
+        *emflags,
+        out / 'sqlite3.o',
+        out / 'extension-functions.o',
+        '-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 +1,108 @@
+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/2023/sqlite-amalgamation-3410000.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/8d79354f?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'),
+    ('https://sqlite.org/src/raw/b9086e22?at=percentile.c', 'sqlite3_percentile_init'),
+    ('https://sqlite.org/src/raw/09f967dc?at=decimal.c', 'sqlite3_decimal_init'),
+    # Third-party extension
+    # =====================
+    ('https://github.com/jakethaw/pivot_vtab/raw/9323ef93/pivot_vtab.c', 'sqlite3_pivotvtab_init'),
+    ('https://github.com/nalgeon/sqlean/raw/95e8d21a/src/pearson.c', 'sqlite3_pearson_init'),
+)
+
+sqljs_url = 'https://github.com/sql-js/sql.js/archive/refs/tags/v1.7.0.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/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 +1,5 @@
+{
+  "name": "sql.js",
+  "main": "./dist/sql-wasm.js",
+  "private": true
+}

package.json

@@ -1,27 +1,35 @@
 {
   "name": "sqliteviz",
-  "version": "0.3.0",
+  "version": "0.22.0",
+  "license": "Apache-2.0",
   "private": true,
   "scripts": {
     "serve": "vue-cli-service serve",
     "build": "NODE_OPTIONS=--max_old_space_size=4096 vue-cli-service build",
-    "test:unit": "vue-cli-service test:unit",
+    "test": "vue-cli-service karma",
     "lint": "vue-cli-service lint"
   },
   "dependencies": {
     "codemirror": "^5.57.0",
     "core-js": "^3.6.5",
+    "dataurl-to-blob": "^0.0.1",
+    "html2canvas": "^1.1.4",
+    "jquery": "^3.6.0",
     "nanoid": "^3.1.12",
-    "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",
-    "sqlite-parser": "^1.0.1",
+    "sql.js": "file:./lib/sql-js",
     "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"
@@ -30,19 +38,25 @@
     "@vue/cli-plugin-babel": "^4.4.0",
     "@vue/cli-plugin-eslint": "^4.4.0",
     "@vue/cli-plugin-router": "^4.4.0",
-    "@vue/cli-plugin-unit-mocha": "^4.4.0",
     "@vue/cli-plugin-vuex": "^4.4.0",
     "@vue/cli-service": "^4.4.0",
     "@vue/eslint-config-standard": "^5.1.2",
-    "@vue/test-utils": "^1.0.3",
+    "@vue/test-utils": "^1.1.2",
     "babel-eslint": "^10.1.0",
     "chai": "^4.1.2",
+    "chai-as-promised": "^7.1.1",
     "eslint": "^6.7.2",
     "eslint-plugin-import": "^2.20.2",
     "eslint-plugin-node": "^11.1.0",
     "eslint-plugin-promise": "^4.2.1",
     "eslint-plugin-standard": "^4.0.0",
     "eslint-plugin-vue": "^6.2.2",
-    "vue-template-compiler": "^2.6.11"
+    "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

@@ -4,14 +4,99 @@
     <meta charset="utf-8">
     <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.ico">
+    <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 extention slot start -->
+    <!-- head extention slot end -->
   </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>
+    <!-- extention slot start -->
+    <!-- extention slot end -->
     <!-- built files will be auto injected -->
   </body>
 </html>

public/inquiries.json

@@ -0,0 +1 @@
+[]

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

@@ -5,12 +5,62 @@
 </template>
 
 <style>
-#app, * {
-  font-family: Open-Sans, Helvetica, Arial, sans-serif;
+@font-face {
+  font-family: "Open Sans";
+  src: url("~@/assets/fonts/OpenSans-Regular.woff2");
+  font-weight: 400;
+  font-style: normal;
+}
+
+@font-face {
+  font-family: "Open Sans";
+  src: url("~@/assets/fonts/OpenSans-SemiBold.woff2");
+  font-weight: 600;
+  font-style: normal;
+}
+
+@font-face {
+  font-family: "Open Sans";
+  src: url("~@/assets/fonts/OpenSans-Bold.woff2");
+  font-weight: 700;
+  font-style: normal;
+}
+
+@font-face {
+  font-family: "Open Sans";
+  src: url("~@/assets/fonts/OpenSans-Italic.woff2");
+  font-weight: 400;
+  font-style: italic;
+}
+
+@font-face {
+  font-family: "Open Sans";
+  src: url("~@/assets/fonts/OpenSans-SemiBoldItalic.woff2");
+  font-weight: 600;
+  font-style: italic;
+}
+
+@font-face {
+  font-family: "Open Sans";
+  src: url("~@/assets/fonts/OpenSans-BoldItalic.woff2");
+  font-weight: 700;
+  font-style: italic;
+}
+
+#app,
+input,
+label,
+button,
+.plotly_editor * {
+  font-family: "Open Sans", Helvetica, Arial, sans-serif;
   -webkit-font-smoothing: antialiased;
   -moz-osx-font-smoothing: grayscale;
 }
+
 body {
   margin: 0;
 }
+.CodeMirror-hints {
+  z-index: 999 !important;
+}
 </style>

src/assets/images/Logo.svg

@@ -0,0 +1,13 @@
+<svg width="300" height="184" viewBox="0 0 300 184" fill="none" xmlns="http://www.w3.org/2000/svg">
+<rect width="300" height="183.736" fill="white"/>
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+<path d="M174.099 -0.741535C174.283 -0.909843 174.524 -1.00317 174.773 -1.00317H318.49C318.739 -1.00317 318.98 -0.909843 319.164 -0.741533V-0.741533C319.837 -0.126316 319.402 0.995008 318.49 0.995008H174.773C173.861 0.995008 173.426 -0.126319 174.099 -0.741535V-0.741535Z" fill="#506784"/>
+<path d="M34.875 119.735L42.5465 126.136L30.3855 140.712L22.714 134.311L34.875 119.735Z" fill="#F3C6BF"/>
+<path d="M27.0972 129.257L34.7687 135.657C34.7687 135.657 38.808 141.112 39.3034 146.597C39.4941 148.708 37.0633 149.282 37.0633 149.282L21.3367 136.161L27.0972 129.257Z" fill="#506784"/>
+<path d="M52.8921 32.8145L92.2718 64.2858C104.874 96.2923 38.3209 133.723 38.3209 133.723L27.8556 126.058C27.8556 126.058 39.6888 108.526 50.8095 81.7699C56.8301 67.2843 54.5731 48.1488 52.8921 32.8145Z" fill="#0D76BF"/>
+<path d="M103.262 130.726H113.253V149.708H103.262V130.726Z" fill="#F3C6BF"/>
+<path d="M54.3067 42.3059C50.8101 35.8118 48.8117 31.3159 49.7739 17.8281H115.011C121.246 28.3186 125.242 54.2949 125.242 75.7754C125.242 97.2559 122.245 116.239 115.011 141.216H100.764C100.764 141.216 94.7701 101.252 92.2723 82.769C90.9679 73.116 57.0197 47.3445 54.3067 42.3059Z" fill="#119DFF"/>
+<path d="M103.262 144.426H113.253C113.253 144.426 119.849 146.027 123.744 149.921C125.242 151.42 123.744 153.418 123.744 153.418H103.262V144.426Z" fill="#506784"/>
+</g>
+</svg>

src/assets/images/checkbox_checked_disabled.svg

@@ -0,0 +1,17 @@
+<svg width="18" height="18" viewBox="0 0 18 18" fill="none" xmlns="http://www.w3.org/2000/svg">
+<rect x="0.5" y="0.5" width="17" height="17" rx="2.5" fill="#DFE8F3" stroke="#C8D4E3"/>
+<g filter="url(#filter0_d)">
+<path d="M15.75 5.25L6.75 14.25L2.625 10.125L3.6825 9.0675L6.75 12.1275L14.6925 4.1925L15.75 5.25Z" fill="#A2B1C6"/>
+</g>
+<defs>
+<filter id="filter0_d" x="0.625" y="3.1925" width="17.125" height="14.0575" filterUnits="userSpaceOnUse" color-interpolation-filters="sRGB">
+<feFlood flood-opacity="0" result="BackgroundImageFix"/>
+<feColorMatrix in="SourceAlpha" type="matrix" values="0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 127 0"/>
+<feOffset dy="1"/>
+<feGaussianBlur stdDeviation="1"/>
+<feColorMatrix type="matrix" values="0 0 0 0 0.164706 0 0 0 0 0.247059 0 0 0 0 0.372549 0 0 0 0.2 0"/>
+<feBlend mode="normal" in2="BackgroundImageFix" result="effect1_dropShadow"/>
+<feBlend mode="normal" in="SourceGraphic" in2="effect1_dropShadow" result="shape"/>
+</filter>
+</defs>
+</svg>

src/assets/images/chevron.svg

@@ -1,3 +1,3 @@
-<svg width="8" height="12" viewBox="0 0 8 12" fill="none" xmlns="http://www.w3.org/2000/svg">
-<path d="M0.721924 9.93097L4.85292 5.79997L0.721924 1.66897L1.99992 0.399973L7.39992 5.79997L1.99992 11.2L0.721924 9.93097Z" fill="#506784"/>
+<svg width="4" height="9" viewBox="0 0 4 9" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M4 0.98056V4.5L4.00004 7.71428L4 9L1.10694e-07 4.5L4 0V0.98056Z" fill="#506784"/>
 </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/error.svg

@@ -0,0 +1,5 @@
+<svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M9.99984 16.6667C6.32484 16.6667 3.33317 13.675 3.33317 10C3.33317 6.32502 6.32484 3.33335 9.99984 3.33335C13.6748 3.33335 16.6665 6.32502 16.6665 10C16.6665 13.675 13.6748 16.6667 9.99984 16.6667ZM9.99984 1.66669C8.90549 1.66669 7.82186 1.88224 6.81081 2.30102C5.79976 2.71981 4.8811 3.33364 4.10728 4.10746C2.54448 5.67027 1.6665 7.78988 1.6665 10C1.6665 12.2102 2.54448 14.3298 4.10728 15.8926C4.8811 16.6664 5.79976 17.2802 6.81081 17.699C7.82186 18.1178 8.90549 18.3334 9.99984 18.3334C12.21 18.3334 14.3296 17.4554 15.8924 15.8926C17.4552 14.3298 18.3332 12.2102 18.3332 10C18.3332 8.90567 18.1176 7.82204 17.6988 6.81099C17.28 5.79995 16.6662 4.88129 15.8924 4.10746C15.1186 3.33364 14.1999 2.71981 13.1889 2.30102C12.1778 1.88224 11.0942 1.66669 9.99984 1.66669Z" fill="#EF553B"/>
+<rect x="6.36768" y="7.54855" width="1.67" height="8.60363" transform="rotate(-45 6.36768 7.54855)" fill="#EF553B"/>
+<rect x="12.4517" y="6.36771" width="1.67" height="8.60363" transform="rotate(45 12.4517 6.36771)" fill="#EF553B"/>
+</svg>

src/assets/images/info.svg

@@ -0,0 +1,3 @@
+<svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M11 9H13V7H11V9ZM12 20C7.59 20 4 16.41 4 12C4 7.59 7.59 4 12 4C16.41 4 20 7.59 20 12C20 16.41 16.41 20 12 20ZM12 2C10.6868 2 9.38642 2.25866 8.17317 2.7612C6.95991 3.26375 5.85752 4.00035 4.92893 4.92893C3.05357 6.8043 2 9.34784 2 12C2 14.6522 3.05357 17.1957 4.92893 19.0711C5.85752 19.9997 6.95991 20.7362 8.17317 21.2388C9.38642 21.7413 10.6868 22 12 22C14.6522 22 17.1957 20.9464 19.0711 19.0711C20.9464 17.1957 22 14.6522 22 12C22 10.6868 21.7413 9.38642 21.2388 8.17317C20.7362 6.95991 19.9997 5.85752 19.0711 4.92893C18.1425 4.00035 17.0401 3.26375 15.8268 2.7612C14.6136 2.25866 13.3132 2 12 2V2ZM11 17H13V11H11V17Z" fill="#A2B1C6"/>
+</svg>

src/assets/images/leftArm.svg

@@ -0,0 +1,4 @@
+<svg width="114" height="90" viewBox="0 0 114 90" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M96.3828 1.93895C91.4244 0.092814 86.6022 5.62505 85.858 10.6816L97.2851 15.549C100.194 10.5856 101.341 3.78508 96.3828 1.93895Z" fill="#F3C6BF"/>
+<path d="M84.9775 9.12413C75.0653 35.2035 30.7179 46.7359 21.4106 37.7265L14.5359 79.4857C67.7607 86.4912 91.9264 55.4111 99.0973 14.7138L84.9775 9.12413Z" fill="#A2B1C6"/>
+</svg>

src/assets/images/logo_simple.svg

@@ -0,0 +1,3 @@
+<svg width="48" height="48" viewBox="0 0 48 48" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M26.8311 34.6554C25.4675 33.8178 24.177 32.8655 22.9735 31.8086V14.3616H30.5728V36.753C29.3146 36.0982 28.0673 35.399 26.8311 34.6554ZM41.4669 25.8486H33.8675V38.1514C36.3477 39.3055 38.884 40.3334 41.4669 41.2313V25.8486ZM22.9735 35.3046L22.4768 34.9051C21.7152 34.2725 21.0033 33.6232 20.3245 32.9739L2.2947 30.8763L5.60596 37.3024L28.7848 39.2002C26.7511 38.0537 24.8082 36.7513 22.9735 35.3046ZM41.0695 44.6441C38.4829 43.7946 35.9458 42.7997 33.4702 41.6641L32.543 41.198L17.2616 40.1825L19.8444 45.593L46.5 46.209C44.6788 45.7761 42.8411 45.2434 41.0695 44.6441ZM9.34768 14.3616C12.2649 19.4905 15.735 24.2807 19.6954 28.6455V11.2651L2.99007 2.99115L1.5 22.3859L18.702 31.2592C14.1919 26.5283 10.9703 20.7087 9.34768 14.3616Z" fill="#119DFF"/>
+</svg>

src/assets/images/rightArm.svg

@@ -0,0 +1,4 @@
+<svg width="106" height="56" viewBox="0 0 106 56" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M104.252 1.40855C100.262 -2.0494 93.7773 1.40854 91.2832 5.85426L100.262 14.3939C104.751 10.7941 108.243 4.86646 104.252 1.40855Z" fill="#F3C6BF"/>
+<path d="M91.0123 4.37207C72.4568 25.1704 30.4279 22.9263 19.9527 4.37207L0 44.6615C38.409 69.8547 86.7944 50.0954 102.258 14.5286L91.0123 4.37207Z" fill="#C8D4E3"/>
+</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/images/success.svg

@@ -0,0 +1,5 @@
+<svg width="21" height="20" viewBox="0 0 21 20" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M10.4998 16.6667C6.82484 16.6667 3.83317 13.675 3.83317 10C3.83317 6.32502 6.82484 3.33335 10.4998 3.33335C14.1748 3.33335 17.1665 6.32502 17.1665 10C17.1665 13.675 14.1748 16.6667 10.4998 16.6667ZM10.4998 1.66669C9.40549 1.66669 8.32186 1.88224 7.31081 2.30102C6.29976 2.71981 5.3811 3.33364 4.60728 4.10746C3.04448 5.67027 2.1665 7.78988 2.1665 10C2.1665 12.2102 3.04448 14.3298 4.60728 15.8926C5.3811 16.6664 6.29976 17.2802 7.31081 17.699C8.32186 18.1178 9.40549 18.3334 10.4998 18.3334C12.71 18.3334 14.8296 17.4554 16.3924 15.8926C17.9552 14.3298 18.8332 12.2102 18.8332 10C18.8332 8.90567 18.6176 7.82204 18.1988 6.81099C17.78 5.79995 17.1662 4.88129 16.3924 4.10746C15.6186 3.33364 14.6999 2.71981 13.6889 2.30102C12.6778 1.88224 11.5942 1.66669 10.4998 1.66669Z" fill="#00CC96"/>
+<rect x="6.09717" y="10.2771" width="1.67" height="4.345" transform="rotate(-45 6.09717 10.2771)" fill="#00CC96"/>
+<rect x="13.752" y="6.97589" width="1.67" height="7.74359" transform="rotate(45 13.752 6.97589)" fill="#00CC96"/>
+</svg>

src/assets/images/top.svg

@@ -0,0 +1,14 @@
+<svg width="450" height="175" viewBox="0 0 450 175" fill="none" xmlns="http://www.w3.org/2000/svg">
+<mask id="mask0" mask-type="alpha" maskUnits="userSpaceOnUse" x="0" y="0" width="450" height="175">
+<rect width="450" height="175" fill="#C4C4C4"/>
+</mask>
+<g mask="url(#mask0)">
+<path d="M128.207 1.99272C70.1972 -9.84897 18.745 30.8895 4.31985 92.6678C-10.1054 154.446 14.3337 186.332 37.3218 226.189C72.3784 286.971 181.551 341.237 265.083 337.789C337.517 334.8 389.028 316.514 425.936 248.111C489.378 130.532 417.444 53.9065 325.527 68.2551C214.571 85.576 213.629 19.4302 128.207 1.99272Z" fill="#DFE8F3"/>
+<path d="M156.284 169.426C158.158 167.553 160.699 166.5 163.349 166.5H331.911C334.561 166.5 337.102 167.553 338.976 169.426L346.041 176.491H149.22L156.284 169.426Z" fill="#C8D4E3"/>
+<path d="M174.099 170.258C174.283 170.09 174.524 169.997 174.773 169.997H318.49C318.739 169.997 318.98 170.09 319.164 170.258V170.258C319.837 170.874 319.402 171.995 318.49 171.995H174.773C173.861 171.995 173.426 170.874 174.099 170.258V170.258Z" fill="#506784"/>
+<path d="M94.227 87.881C94.3962 80.1988 92.5048 65.0608 83.5857 65.9664C83.5857 65.9664 70.5776 76.0877 75.6391 83.6188C80.7005 91.1498 93.4677 94.5083 94.227 87.881Z" fill="#F3C6BF"/>
+<path d="M89.275 91.3105L88 98C85.5023 99.4986 76.5531 99.0196 74.5 95C74.5 95 76.8298 89.9135 77.8446 84.9226L89.275 91.3105Z" fill="#F3C6BF"/>
+<path d="M92.2719 67.1161C92.2719 72.7689 84.2242 68.8872 82.3423 72.9126C80.4605 76.9379 77.3952 86.9208 77.3952 86.9208C72.6323 84.7414 66.7273 69.33 73.2936 65.1034C79.3506 61.2047 92.2719 63.0102 92.2719 67.1161Z" fill="#506784"/>
+<path d="M79.7654 83.9628C75.1522 80.7269 76.371 75.1343 79.7562 76.9534C85.1994 79.8785 81.2934 82.9808 79.7654 83.9628Z" fill="#F3C6BF"/>
+</g>
+</svg>

src/assets/styles/buttons.css

@@ -27,14 +27,6 @@ button.primary:hover {
   text-shadow: var(--shadow);
 }
 
-button.primary:disabled {
-  background: var(--color-bg-light-2);
-  border: 1px solid var(--color-border);
-  color: var(--color-text-light-2);
-  text-shadow: none;
-  cursor: default;
-}
-
 button.secondary {
   background: white;
   border: 1px solid var(--color-border);
@@ -59,5 +51,13 @@ button.toolbar:hover {
   color: var(--color-accent);
 }
 
+button.primary:disabled,
+button.secondary:disabled {
+  background: var(--color-bg-light-2);
+  border: 1px solid var(--color-border);
+  color: var(--color-text-light-2);
+  text-shadow: none;
+  cursor: default;
+}
 
 

src/assets/styles/messages.css

@@ -0,0 +1,6 @@
+.warning {
+  background-color: var(--color-bg-warning);
+  color: var(--color-text-base);
+  font-size: 13px;
+  padding: 0 24px;
+}

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

@@ -1,15 +1,21 @@
 .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;
-  top: -1px;;
+  top: -1px;
   left: -1px;
   width: calc(100% + 2px);
   padding-left: 7px;
@@ -18,29 +24,52 @@
   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;
+    padding-left: 6px;
+  }
+}
+
 .header-container > div {
   display: flex;
   width: fit-content;
-  padding-right: 10px;
+  padding-right: 30px;
 }
 .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);
@@ -48,18 +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

@@ -0,0 +1,13 @@
+.icon-tooltip {
+  background-color: rgba(80, 103, 132, 0.85);
+  color: #fff;
+  text-align: center;
+  font-size: 12px;
+  padding: 0 6px;
+  line-height: 19px;;
+  position: fixed;
+  height: 19px;
+  border-radius: var(--border-radius-medium);
+  white-space: nowrap;
+  z-index: 999;
+}

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;
 
 
@@ -18,12 +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-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);
@@ -31,6 +37,7 @@
   --color-text-error: var(--color-red);
 
   --shadow: 0 1px 2px rgba(42, 63, 95, 0.7);
+  --shadow-1: 0 2px 9px rgba(80, 103, 132, 0.2);
 
   --border-radius-big: 5px;
   --border-radius-medium: 3px;
@@ -38,5 +45,9 @@
   --border-radius-small: 2px;
 }
 
+.plotly-editor--theme-provider {
+  --sidebar-width: 112px;
+}
+
 
 

src/components/Chart.vue

@@ -1,131 +0,0 @@
-<template>
-<div class="chart-container">
-  <div class="chart-worning" 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
-    v-show="visible"
-    :data="state.data"
-    :layout="state.layout"
-    :frames="state.frames"
-    :config="{ editable: true, displaylogo: false }"
-    :dataSources="dataSources"
-    :dataSourceOptions="dataSourceOptions"
-    :plotly="plotly"
-    @onUpdate="update"
-    :useResizeHandler="true"
-    :debug="true"
-    :advancedTraceTypeSelector="true"
-    class="chart"
-    :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 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 () {
-      if (!this.sqlResult) {
-        return {}
-      }
-      const dataSorces = {}
-      const matrix = this.sqlResult.values
-      const [row] = matrix
-      const transposedMatrix = row.map((value, column) => matrix.map(row => row[column]))
-      this.sqlResult.columns.forEach((column, index) => {
-        dataSorces[column] = transposedMatrix[index]
-      })
-      return dataSorces
-    },
-    dataSourceOptions () {
-      return Object.keys(this.dataSources).map(name => ({
-        value: name,
-        label: name
-      }))
-    }
-  },
-  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: {
-    update (data, layout, frames) {
-      this.state = { data, layout, frames }
-      this.$emit('update')
-    },
-    getChartSatateForSave () {
-      // we don't need to save the data, only settings
-      // so we modify state.data using dereference
-      const stateCopy = JSON.parse(JSON.stringify(this.state))
-      const emptySources = {}
-      for (const key in this.dataSources) {
-        emptySources[key] = []
-      }
-      dereference(stateCopy.data, emptySources)
-      return stateCopy
-    }
-  }
-}
-</script>
-<style scoped>
-.chart-container {
-  height: calc(100% - 89px);
-}
-.chart-worning {
-  background-color: var(--color-bg-warning);
-  height: 40px;
-  line-height: 40px;
-  color: var(--color-text-base);
-  font-size: 13px;
-  padding: 0 24px;
-}
-.chart {
-  border-top: 1px solid var(--color-border);
-}
-
->>> .editor_controls .sidebar__item:before {
-  width: 0;
-}
-
->>> .sidebar {
-  width: 120px;
-  min-width: 120px;
-  max-width: 120px;
-}
-
->>> .editor_controls__wrapper>.panel,
->>> .editor_controls .panel__empty {
-  width: 315px;
-}
->>> .editor_controls .sidebar__group__title {
-  padding-left: 10px;
-}
->>> .editor_controls .sidebar__item {
-  padding-left: 32px;
-}
-</style>

src/components/CheckBox.vue

@@ -1,20 +1,26 @@
 <template>
-  <div class="checkbox-container" @click.stop="onClick">
+  <div
+    :class="['checkbox-container', { 'checked': checked }, {'disabled': disabled}]"
+    @click.stop="onClick"
+  >
     <div v-show="!checked" class="unchecked" />
     <img
-      v-show="checked && theme === 'accent'"
-      :src="require('@/assets/images/checkbox_checked.svg')"
+      v-show="checked && !disabled"
+      :src="theme === 'light'
+        ? require('@/assets/images/checkbox_checked_light.svg')
+        : require('@/assets/images/checkbox_checked.svg')"
     />
     <img
-      v-show="checked && theme === 'light'"
-      :src="require('@/assets/images/checkbox_checked_light.svg')"
+      v-show="checked && disabled"
+      :src="require('@/assets/images/checkbox_checked_disabled.svg')"
     />
+    <span v-if="label" class="label">{{ label }}</span>
   </div>
 </template>
 
 <script>
 export default {
-  name: 'checkBox',
+  name: 'CheckBox',
   props: {
     theme: {
       type: String,
@@ -28,6 +34,16 @@ export default {
       type: Boolean,
       required: false,
       default: false
+    },
+    label: {
+      type: String,
+      required: false,
+      default: ''
+    },
+    disabled: {
+      type: Boolean,
+      required: false,
+      default: false
     }
   },
   data () {
@@ -35,15 +51,12 @@ export default {
       checked: this.init
     }
   },
-  watch: {
-    checked () {
-      this.$emit('change', this.checked)
-    }
-  },
   methods: {
     onClick () {
-      this.checked = !this.checked
-      this.$emit('click', this.checked)
+      if (!this.disabled) {
+        this.checked = !this.checked
+        this.$emit('click', this.checked)
+      }
     }
   }
 }
@@ -51,7 +64,7 @@ export default {
 
 <style scoped>
 .checkbox-container {
-  display: inline-block;
+  display: inline-flex;
   cursor: pointer;
 }
 .unchecked {
@@ -69,4 +82,24 @@ export default {
 img {
     display: block;
 }
+.label {
+  margin-left: 6px;
+  color: var(--color-text-base);
+}
+.checked .label {
+  color: var(--color-text-active);
+}
+
+.disabled.checkbox-container {
+  cursor: default;
+}
+
+.disabled .label {
+  color: var(--color-text-light-2);
+}
+
+.disabled .unchecked,
+.disabled .unchecked:hover {
+  background-color:  var(--color-bg-light-2);
+}
 </style>

src/components/CsvImport/DelimiterSelector/ascii.js

@@ -0,0 +1,130 @@
+export default {
+  0: { name: 'null character' },
+  1: { name: 'start of header' },
+  2: { name: 'start of text' },
+  3: { name: 'end of text' },
+  4: { name: 'end of transmission' },
+  5: { name: 'enquiry' },
+  6: { name: 'acknowledge' },
+  7: { name: 'bell (ring)' },
+  8: { name: 'backspace' },
+  9: { name: 'horizontal tab' },
+  10: { name: 'line feed' },
+  11: { name: 'vertical tab' },
+  12: { name: 'form feed' },
+  13: { name: 'carriage return' },
+  14: { name: 'shift out' },
+  15: { name: 'shift in' },
+  16: { name: 'data link escape' },
+  17: { name: 'device control 1' },
+  18: { name: 'device control 2' },
+  19: { name: 'device control 3' },
+  20: { name: 'device control 4' },
+  21: { name: 'negative acknowledge' },
+  22: { name: 'synchronize' },
+  23: { name: 'end transmission block' },
+  24: { name: 'cancel' },
+  25: { name: 'end of medium' },
+  26: { name: 'substitute' },
+  27: { name: 'escape' },
+  28: { name: 'file separator' },
+  29: { name: 'group separator' },
+  30: { name: 'record separator' },
+  31: { name: 'unit separator' },
+  32: { name: 'space' },
+  33: { name: 'exclamation mark' },
+  34: { name: 'quotation mark' },
+  35: { name: 'number sign' },
+  36: { name: 'dollar sign' },
+  37: { name: 'percent sign' },
+  38: { name: 'ampersand' },
+  39: { name: 'apostrophe' },
+  40: { name: 'left parenthesis' },
+  41: { name: 'right parenthesis' },
+  42: { name: 'asterisk' },
+  43: { name: 'plus sign' },
+  44: { name: 'comma' },
+  45: { name: 'hyphen' },
+  46: { name: 'period' },
+  47: { name: 'slash' },
+  48: { name: 'digit 0' },
+  49: { name: 'digit 1' },
+  50: { name: 'digit 2' },
+  51: { name: 'digit 3' },
+  52: { name: 'digit 4' },
+  53: { name: 'digit 5' },
+  54: { name: 'digit 6' },
+  55: { name: 'digit 7' },
+  56: { name: 'digit 8' },
+  57: { name: 'digit 9' },
+  58: { name: 'colon' },
+  59: { name: 'semicolon' },
+  60: { name: 'less-than' },
+  61: { name: 'equals-to' },
+  62: { name: 'greater-than' },
+  63: { name: 'question mark' },
+  64: { name: 'at sign' },
+  65: { name: 'uppercase A' },
+  66: { name: 'uppercase B' },
+  67: { name: 'uppercase C' },
+  68: { name: 'uppercase D' },
+  69: { name: 'uppercase E' },
+  70: { name: 'uppercase F' },
+  71: { name: 'uppercase G' },
+  72: { name: 'uppercase H' },
+  73: { name: 'uppercase I' },
+  74: { name: 'uppercase J' },
+  75: { name: 'uppercase K' },
+  76: { name: 'uppercase L' },
+  77: { name: 'uppercase M' },
+  78: { name: 'uppercase N' },
+  79: { name: 'uppercase O' },
+  80: { name: 'uppercase P' },
+  81: { name: 'uppercase Q' },
+  82: { name: 'uppercase R' },
+  83: { name: 'uppercase S' },
+  84: { name: 'uppercase T' },
+  85: { name: 'uppercase U' },
+  86: { name: 'uppercase V' },
+  87: { name: 'uppercase W' },
+  88: { name: 'uppercase X' },
+  89: { name: 'uppercase Y' },
+  90: { name: 'uppercase Z' },
+  91: { name: 'left square bracket' },
+  92: { name: 'backslash' },
+  93: { name: 'right square bracket' },
+  94: { name: 'caret' },
+  95: { name: 'underscore' },
+  96: { name: 'grave accent' },
+  97: { name: 'lowercase a' },
+  98: { name: 'lowercase b' },
+  99: { name: 'lowercase c' },
+  100: { name: 'lowercase d' },
+  101: { name: 'lowercase e' },
+  102: { name: 'lowercase f' },
+  103: { name: 'lowercase g' },
+  104: { name: 'lowercase h' },
+  105: { name: 'lowercase i' },
+  106: { name: 'lowercase j' },
+  107: { name: 'lowercase k' },
+  108: { name: 'lowercase l' },
+  109: { name: 'lowercase m' },
+  110: { name: 'lowercase n' },
+  111: { name: 'lowercase o' },
+  112: { name: 'lowercase p' },
+  113: { name: 'lowercase q' },
+  114: { name: 'lowercase r' },
+  115: { name: 'lowercase s' },
+  116: { name: 'lowercase t' },
+  117: { name: 'lowercase u' },
+  118: { name: 'lowercase v' },
+  119: { name: 'lowercase w' },
+  120: { name: 'lowercase x' },
+  121: { name: 'lowercase y' },
+  122: { name: 'lowercase z' },
+  123: { name: 'left curly brace' },
+  124: { name: 'vertical bar' },
+  125: { name: 'right curly brace' },
+  126: { name: 'tilde' },
+  127: { name: 'delete (rubout)' }
+}

src/components/CsvImport/DelimiterSelector/index.vue

@@ -0,0 +1,204 @@
+<template>
+  <div :class="{ 'disabled': disabled }">
+    <div class="text-field-label">Delimiter</div>
+    <div
+      class="delimiter-selector-container"
+      :style="{ width: width }"
+      @click="onContainerClick"
+    >
+      <div class="value">
+        <input
+          :class="{ 'filled': filled }"
+          ref="delimiterInput"
+          type="text"
+          maxlength="1"
+          v-model="inputValue"
+          @click.stop
+          :disabled="disabled"
+        />
+        <div class="name">{{ getSymbolName(value) }}</div>
+      </div>
+      <div class="controls" @click.stop>
+        <clear-icon @click.native="clear" :disabled="disabled"/>
+        <drop-down-chevron
+          :disabled="disabled"
+          @click.native="!disabled && (showOptions = !showOptions)"
+        />
+      </div>
+    </div>
+    <div v-show="showOptions" class="options" :style="{ width: width }">
+      <div
+        v-for="(option, index) in options"
+        :key="index"
+        @click="chooseOption(option)"
+        class="option"
+      >
+        <pre>{{option}}</pre><div>{{ getSymbolName(option) }}</div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script>
+import ascii from './ascii'
+import DropDownChevron from '@/components/svg/dropDownChevron'
+import ClearIcon from '@/components/svg/clear'
+
+export default {
+  name: 'DelimiterSelector',
+  props: ['value', 'width', 'disabled'],
+  components: { DropDownChevron, ClearIcon },
+  data () {
+    return {
+      showOptions: false,
+      options: [',', '\t', ' ', '|', ';', '\u001F', '\u001E'],
+      filled: false,
+      inputValue: ''
+    }
+  },
+  watch: {
+    inputValue () {
+      if (this.inputValue) {
+        this.filled = true
+        if (this.inputValue !== this.value) {
+          this.$emit('input', this.inputValue)
+        }
+      } else {
+        this.filled = false
+      }
+    }
+  },
+  created () {
+    this.inputValue = this.value
+  },
+  methods: {
+    getSymbolName (str) {
+      if (!str) {
+        return ''
+      }
+      return ascii[str.charCodeAt(0).toString()].name
+    },
+    chooseOption (option) {
+      this.inputValue = option
+      this.showOptions = false
+    },
+    onContainerClick (event) {
+      this.$refs.delimiterInput.focus()
+    },
+
+    clear () {
+      if (!this.disabled) {
+        this.inputValue = ''
+        this.$refs.delimiterInput.focus()
+      }
+    }
+  }
+}
+</script>
+
+<style scoped>
+.delimiter-selector-container {
+  background: var(--color-white);
+  border: 1px solid var(--color-border);
+  border-radius: var(--border-radius-medium-2);
+  height: 36px;
+  padding: 0 8px;
+  font-size: 12px;
+  box-sizing: border-box;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+}
+
+.value {
+  display: flex;
+  align-items: center;
+}
+
+.value .name {
+  color: var(--color-text-light-2);
+  cursor: default;
+  margin-left: 4px;
+}
+
+.controls {
+  display: flex;
+  align-items: center;
+}
+
+.options {
+  background: var(--color-white);
+  border: 1px solid var(--color-border);
+  border-width: 0 1px 1px 1px;
+  color: var(--color-text-base);
+  border-radius: var(--border-radius-medium-2);
+  font-size: 12px;
+  box-sizing: border-box;
+  position: absolute;
+  z-index: 2;
+}
+
+.option {
+  display: flex;
+  align-items: center;
+  height: 24px;
+  padding: 0 6px;
+}
+
+.option:hover {
+  background-color: var(--color-bg-light);
+  color: var(--color-text-active);
+  cursor: pointer;
+}
+
+.option pre {
+  background-color: var(--color-bg-warning);
+  line-height: 20px;
+  margin-right: 6px;
+  tab-size: 1;
+  font-family: monospace;
+  width: 16px;
+  text-align: center;
+}
+
+input {
+  background: var(--color-white);
+  border: none;
+  color: var(--color-text-base);
+  height: 20px;
+  font-family: monospace;
+  font-size: 12px;
+  box-sizing: border-box;
+  width: 16px;
+  text-align: center;
+}
+
+input.filled {
+  background: var(--color-bg-warning);
+}
+
+input:focus {
+  outline: none;
+}
+
+input:disabled {
+  background: var(--color-bg-light);
+  color: var(--color-text-light-2);
+  cursor: default;
+}
+
+.text-field-label {
+  font-size: 12px;
+  color: var(--color-text-base);
+  padding-left: 8px;
+  margin-bottom: 2px;
+}
+
+.disabled .text-field-label {
+  color: var(--color-text-light-2);
+}
+
+.disabled .delimiter-selector-container {
+  background: var(--color-bg-light);
+}
+</style>

src/components/CsvImport/index.vue

@@ -0,0 +1,387 @@
+<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 '@/lib/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'
+import events from '@/lib/utils/events'
+
+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')
+      events.send('inquiry.create', null, { auto: true })
+    }
+  }
+}
+</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

@@ -0,0 +1,265 @@
+<template>
+  <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'"
+        @dragleave.prevent="state=''"
+        @drop.prevent="drop"
+        @click="browse"
+      >
+        <div class="text">
+          Drop the database or CSV file here or click to choose a file from your computer.
+        </div>
+      </div>
+    </div>
+    <div v-if="type === 'illustrated'" id="img-container">
+      <img id="drop-file-top-img" :src="require('@/assets/images/top.svg')" />
+      <img
+        id="left-arm-img"
+        :class="{'swing': state === 'dragover'}"
+        :src="require('@/assets/images/leftArm.svg')"
+      />
+      <img
+        id="file-img"
+        ref="fileImg"
+        :class="{
+          'swing': state === 'dragover',
+          'fly': state === 'dropping',
+          'hidden': state === 'dropped'
+        }"
+        :src="require('@/assets/images/file.png')"
+      />
+      <img id="drop-file-bottom-img" :src="require('@/assets/images/bottom.svg')" />
+      <img id="body-img" :src="require('@/assets/images/body.svg')" />
+      <img
+        id="right-arm-img"
+        :class="{'swing': state === 'dragover'}"
+        :src="require('@/assets/images/rightArm.svg')"
+      />
+    </div>
+    <div id="error" class="error"></div>
+
+    <!--Parse csv dialog  -->
+    <csv-import
+      ref="addCsv"
+      :file="file"
+      :db="newDb"
+      dialog-name="importFromCsv"
+      @cancel="cancelCsvImport"
+      @finish="finish"
+    />
+  </div>
+</template>
+
+<script>
+import fIo from '@/lib/utils/fileIo'
+import ChangeDbIcon from '@/components/svg/changeDb'
+import database from '@/lib/database'
+import CsvImport from '@/components/CsvImport'
+import events from '@/lib/utils/events'
+
+export default {
+  name: 'DbUploader',
+  props: {
+    type: {
+      type: String,
+      required: false,
+      default: 'small',
+      validator: (value) => {
+        return ['illustrated', 'small'].includes(value)
+      }
+    },
+    width: {
+      type: String,
+      required: false,
+      default: 'unset'
+    }
+  },
+  components: {
+    ChangeDbIcon,
+    CsvImport
+  },
+  data () {
+    return {
+      state: '',
+      animationPromise: Promise.resolve(),
+      file: null,
+      newDb: null
+    }
+  },
+  mounted () {
+    if (this.type === 'illustrated') {
+      this.animationPromise = new Promise((resolve) => {
+        this.$refs.fileImg.addEventListener('animationend', event => {
+          if (event.animationName.startsWith('fly')) {
+            this.state = 'dropped'
+            resolve()
+          }
+        })
+      })
+    }
+  },
+  methods: {
+    cancelCsvImport () {
+      if (this.newDb) {
+        this.newDb.shutDown()
+        this.newDb = null
+      }
+    },
+
+    async finish () {
+      this.$store.commit('setDb', this.newDb)
+      if (this.$route.path !== '/workspace') {
+        this.$router.push('/workspace')
+      }
+    },
+
+    loadDb (file) {
+      return Promise.all([this.newDb.loadDb(file), this.animationPromise])
+        .then(this.finish)
+    },
+
+    async checkFile (file) {
+      this.state = 'dropping'
+      this.newDb = database.getNewDatabase()
+
+      if (fIo.isDatabase(file)) {
+        this.loadDb(file)
+      } else {
+        events.send('database.import', file.size, {
+          from: 'csv',
+          new_db: true
+        })
+
+        this.file = file
+        await this.$nextTick()
+        const csvImport = this.$refs.addCsv
+        csvImport.reset()
+        return Promise.all([csvImport.previewCsv(), this.animationPromise])
+          .then(csvImport.open)
+      }
+    },
+    browse () {
+      fIo.getFileFromUser('.db,.sqlite,.sqlite3,.csv')
+        .then(this.checkFile)
+    },
+
+    drop (event) {
+      this.checkFile(event.dataTransfer.files[0])
+    }
+  }
+}
+</script>
+
+<style scoped>
+.db-uploader-container {
+  position: relative;
+}
+.drop-area-container {
+  display: inline-block;
+  border: 1px dashed var(--color-border);
+  padding: 8px;
+  border-radius: var(--border-radius-big);
+  height: 100%;
+  width: 100%;
+  box-sizing: border-box;
+}
+
+.drop-area {
+  background-color: var(--color-bg-light-3);
+  border-radius: var(--border-radius-big);
+  color: var(--color-text-base);
+  font-size: 13px;
+  text-align: center;
+  box-sizing: border-box;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  height: 100%;
+  cursor: pointer;
+}
+
+#img-container {
+  position: absolute;
+  top: 54px;
+  left: 50%;
+  transform: translate(-50%, 0);
+  width: 450px;
+  height: 338px;
+  pointer-events: none;
+}
+
+#drop-file-top-img {
+  width: 450px;
+  height: 175px;
+  position: absolute;
+  top: 0;
+  left: 0;
+}
+#drop-file-bottom-img {
+  width: 450px;
+  height: 167px;
+  position: absolute;
+  bottom: 0;
+  left: 0;
+}
+#body-img {
+  width: 74px;
+  position: absolute;
+  top: 94.05px;
+  left: 46px;
+}
+#right-arm-img {
+  width: 106px;
+  position: absolute;
+  top: 110.05px;
+  left: 78px;
+}
+#left-arm-img {
+  width: 114px;
+  position: absolute;
+  top: 69.05px;
+  left: 69px;
+}
+#file-img {
+  width: 125px;
+  position: absolute;
+  top: 15.66px;
+  left: 152px;
+}
+
+.swing {
+  animation: swing ease-in-out 0.6s infinite alternate;
+}
+#left-arm-img.swing {
+  transform-origin: 9px 83px;
+}
+#right-arm-img.swing {
+  transform-origin: 0 56px;
+}
+#file-img.swing {
+   transform-origin: -74px 139px;
+}
+@keyframes swing {
+  0% { transform: rotate(0deg); }
+  100% { transform: rotate(-7deg); }
+}
+
+#file-img.fly {
+  animation: fly ease-in-out 1s 1 normal;
+  transform-origin: center center;
+}
+@keyframes fly {
+  100% {
+    transform: rotate(360deg) scale(0.5);
+    top: 183px;
+    left: 225px;
+  }
+}
+
+#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/LoadingDialog.vue

@@ -0,0 +1,83 @@
+<template>
+  <modal
+    :name="name"
+    classes="dialog"
+    height="auto"
+    :clickToClose="false"
+  >
+    <div class="dialog-header">
+      {{ title }}
+      <close-icon @click="$emit('cancel')" :disabled="loading"/>
+    </div>
+    <div class="dialog-body">
+      <div v-if="loading" class="loading-dialog-body">
+        <loading-indicator :size="30" class="state-icon"/>
+        {{ loadingMsg }}
+      </div>
+      <div v-else class="loading-dialog-body">
+        <img :src="require('@/assets/images/success.svg')" class="success-icon state-icon" />
+        {{ successMsg }}
+      </div>
+    </div>
+    <div class="dialog-buttons-container">
+      <button
+        class="secondary"
+        :disabled="loading"
+        @click="$emit('cancel')"
+      >
+        Cancel
+      </button>
+      <button
+        class="primary"
+        :disabled="loading"
+        @click="$emit('action')"
+      >
+        {{ actionBtnName }}
+      </button>
+    </div>
+  </modal>
+</template>
+
+<script>
+import LoadingIndicator from '@/components/LoadingIndicator'
+import CloseIcon from '@/components/svg/close'
+
+export default {
+  name: 'loadingDialog',
+  props: {
+    loadingMsg: String,
+    successMsg: String,
+    actionBtnName: String,
+    name: String,
+    title: String,
+    loading: Boolean
+  },
+  watch: {
+    loading () {
+      if (this.loading) {
+        this.$modal.show(this.name)
+      }
+    }
+  },
+  components: { LoadingIndicator, CloseIcon },
+  methods: {
+    cancel () {
+      this.$emit('cancel')
+    }
+  }
+}
+</script>
+
+<style scoped>
+.loading-dialog-body {
+  display: flex;
+  align-items: center;
+}
+.success-icon {
+  width: 30px;
+}
+
+.state-icon {
+  margin-right: 8px;
+}
+</style>

src/components/LoadingIndicator.vue

@@ -0,0 +1,115 @@
+<template>
+  <svg :class="animationClass" :height="size" :width="size" :viewBox="`0 0 ${size} ${size}`">
+    <circle
+      class="loader-svg bg"
+      :style="{ strokeWidth }"
+      :cx="size / 2"
+      :cy="size / 2"
+      :r="radius"
+    />
+    <circle
+      class="loader-svg front"
+      :style="{ strokeDasharray: circleProgress, strokeDashoffset: offset, strokeWidth }"
+      :cx="size / 2"
+      :cy="size / 2"
+      :r="radius"
+    />
+  </svg>
+</template>
+
+<script>
+export default {
+  name: 'LoadingIndicator',
+  props: {
+    progress: {
+      type: Number,
+      required: false
+    },
+    size: {
+      type: Number,
+      required: false,
+      default: 20
+    }
+  },
+  computed: {
+    circleProgress () {
+      const circle = this.radius * 3.14 * 2
+      const dash = this.progress ? (circle * this.progress) / 100 : circle * 1 / 3
+      const space = circle - dash
+      return `${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
+    }
+  }
+}
+</script>
+
+<style scoped>
+.loader-svg {
+  position: absolute;
+  left: 0; right: 0; top: 0; bottom: 0;
+  fill: none;
+  stroke-linecap: round;
+  stroke: var(--color-accent);
+}
+
+.loader-svg.bg {
+  stroke: var(--color-gray-light-3);
+}
+
+.loading .loader-svg.front {
+  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% {
+    transform: rotate(0deg);
+  }
+  100% {
+    transform: rotate(360deg);
+  }
+}
+
+.progress .loader-svg.front {
+  transition: stroke-dasharray 0.2s;
+}
+
+.progress .loader-svg.bg {
+  animation: bg-animation 1.5s cubic-bezier(1,1,1,1) 0s infinite;
+}
+
+@keyframes bg-animation{
+  0% {
+    r: 8;
+  }
+  50% {
+    stroke: var(--color-gray-light-2);
+    r: 9;
+  }
+  100% {
+   r: 8;
+  }
+}
+
+</style>

src/components/Logs.vue

@@ -0,0 +1,86 @@
+<template>
+  <div class="logs-container" ref="logsContainer">
+    <div v-for="(msg, index) in messages" :key="index" class="msg">
+      <img v-if="msg.type === 'error'" :src="require('@/assets/images/error.svg')">
+      <img v-if="msg.type === 'info'" :src="require('@/assets/images/info.svg')" width="20px">
+      <img v-if="msg.type === 'success'" :src="require('@/assets/images/success.svg')">
+      <loading-indicator v-if="msg.type === 'loading'" :progress="msg.progress" />
+      <span class="msg-text">{{ serializeMessage(msg) }}</span>
+    </div>
+  </div>
+</template>
+
+<script>
+import LoadingIndicator from '@/components/LoadingIndicator'
+
+export default {
+  name: 'logs',
+  props: ['messages'],
+  components: { LoadingIndicator },
+  watch: {
+    'messages.length': 'scrollToBottom'
+  },
+  mounted () {
+    this.scrollToBottom()
+  },
+  methods: {
+    async scrollToBottom () {
+      const container = this.$refs.logsContainer
+      if (container) {
+        await this.$nextTick()
+        container.scrollTop = container.scrollHeight
+      }
+    },
+
+    serializeMessage (msg) {
+      let result = ''
+      if (msg.row !== null && msg.row !== undefined) {
+        if (msg.type === 'error') {
+          result += `Error in row ${msg.row}. `
+        } else {
+          result += `Information about row ${msg.row}. `
+        }
+      }
+
+      result += msg.message
+      if (!(/(\.|!|\?)$/.test(result))) {
+        result += '.'
+      }
+
+      if (msg.hint) {
+        result += ` ${msg.hint}`
+      }
+      return result
+    }
+  }
+}
+</script>
+
+<style scoped>
+.logs-container {
+  background-color: var(--color-white);
+  padding: 0 5px;
+  border-radius: 5px;
+  border: 1px solid var(--color-border-light);
+  box-sizing: border-box;
+  overflow-y: auto;
+  color: var(--color-text-base);
+}
+.msg {
+  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 {
+  border-bottom: none;
+}
+
+.msg-text {
+  margin-left: 6px;
+  margin-top: 2px;
+}
+</style>

src/components/MainMenu.vue

@@ -1,106 +0,0 @@
-<template>
-  <nav>
-    <div>
-      <router-link to="/editor">Editor</router-link>
-      <router-link to="/my-queries">My queries</router-link>
-    </div>
-    <div>
-      <button
-        v-if="$store.state.tabs.length > 0"
-        class="primary"
-        :disabled="$store.state.currentTab && !$store.state.currentTab.isUnsaved"
-        @click="saveQuery"
-      >
-        Save
-      </button>
-      <button class="primary" @click="createNewQuery">Create</button>
-    </div>
-  </nav>
-</template>
-
-<script>
-import { nanoid } from 'nanoid'
-
-export default {
-  name: 'MainMenu',
-  created () {
-    this.$root.$on('createNewQuery', this.createNewQuery)
-  },
-  methods: {
-    createNewQuery () {
-      const tab = {
-        id: nanoid(),
-        name: null,
-        tempName: this.$store.state.untitledLastIndex
-          ? `Untitled ${this.$store.state.untitledLastIndex}`
-          : 'Untitled',
-        isUnsaved: true
-      }
-      this.$store.commit('addTab', tab)
-      this.$store.commit('setCurrentTabId', tab.id)
-      this.$store.commit('updateUntitledLastIndex')
-    },
-    saveQuery () {
-      const currentQuery = this.$store.state.currentTab
-      const isFromScratch = !this.$store.state.currentTab.initName
-      const value = {
-        id: currentQuery.id,
-        query: currentQuery.query,
-        chart: currentQuery.getChartSatateForSave()
-      }
-
-      if (isFromScratch) {
-        value.name = prompt('query name')
-        // TODO: create dialog
-        this.$store.commit('updateTabName', { index: currentQuery.tabIndex, newName: value.name })
-        value.createdAt = new Date()
-      } else {
-        value.name = currentQuery.initName
-      }
-
-      let myQueries = JSON.parse(localStorage.getItem('myQueries'))
-      if (!myQueries) {
-        myQueries = [value]
-      } else if (isFromScratch) {
-        myQueries.push(value)
-      } else {
-        const queryIndex = myQueries.findIndex(query => query.id === currentQuery.id)
-        value.createdAt = myQueries[queryIndex].createdAt
-        myQueries[queryIndex] = value
-      }
-      localStorage.setItem('myQueries', JSON.stringify(myQueries))
-      currentQuery.isUnsaved = false
-    }
-  }
-}
-</script>
-
-<style scoped>
-nav {
-  height: 68px;
-  display: flex;
-  justify-content: space-between;
-  align-items: center;
-  background-color: var(--color-bg-light);
-  border-bottom: 1px solid var(--color-border-light);
-  box-sizing: border-box;
-  position: fixed;
-  top: 0;
-  left: 0;
-  width: 100vw;
-  padding: 0 52px;
-}
-a {
-  font-size: 18px;
-  color: var(--color-text-base);
-  text-transform: none;
-  text-decoration: none;
-  margin-right: 28px;
-}
-a.router-link-active {
-  color: var(--color-accent);
-}
-button {
-  margin-left: 16px;
-}
-</style>

src/components/Schema.vue

@@ -1,136 +0,0 @@
-<template>
-  <div>
-    <text-field placeholder="Search table" width="100%"/>
-    <div id="db">
-      <div @click="schemaVisible = !schemaVisible" class="db-name">
-        <svg
-          :style="{transform: schemaVisible ? 'rotate(90deg)' : 'rotate(0)'}"
-          class="chevron-icon"
-          width="9"
-          height="9"
-          viewBox="0 0 8 12"
-          fill="none"
-          xmlns="http://www.w3.org/2000/svg"
-        >
-          <path
-            d="M0.721924 9.93097L4.85292 5.79997L0.721924 1.66897L1.99992 0.399973L7.39992 5.79997L1.99992 11.2L0.721924 9.93097Z"
-            :fill="schemaVisible ? '#506784' : 'rgba(80, 103, 132, 0.5)'"
-          />
-        </svg>
-        {{ dbName }}
-      </div>
-      <div class="db-edit">
-        <input type="file" id="actual-btn"  ref="dbfile" hidden @change="changeDb"/>
-        <label for="actual-btn">
-          <svg
-            class="db-edit-icon"
-            width="18"
-            height="18"
-            viewBox="0 0 18 18"
-            fill="none"
-            xmlns="http://www.w3.org/2000/svg"
-          >
-            <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>
-        </label>
-        <span class="db-edit-tooltip">Change database</span>
-      </div>
-    </div>
-    <div v-show="schemaVisible" class="schema">
-      <table-description
-        v-for="(table, index) in schema"
-        :key="index"
-        :name="table[0]"
-        :sql="table[1]"
-      />
-    </div>
-  </div>
-</template>
-
-<script>
-import TableDescription from '@/components/TableDescription'
-import TextField from '@/components/TextField'
-
-export default {
-  name: 'Schema',
-  components: { TableDescription, TextField },
-  data () {
-    return {
-      schemaVisible: true
-    }
-  },
-  computed: {
-    schema () {
-      return this.$store.state.schema
-    },
-    dbName () {
-      return this.$store.state.dbName
-    }
-  },
-  methods: {
-    changeDb () {
-      this.$db.loadDb(this.$refs.dbfile.files[0])
-    }
-  }
-}
-</script>
-
-<style scoped>
-.schema {
-  margin-left: 12px;
-}
-.schema, .db-name {
-  color: var(--color-text-base);
-  font-size: 13px;
-  white-space: nowrap;
-}
-#db {
-  display: flex;
-  align-items: center;
-}
-
-.db-name {
-  cursor: pointer;
-}
->>> .chevron-icon {
-  -webkit-transition: transform .15s ease-in-out;
-  transition: transform .15s ease-in-out;
-}
-.db-name:hover .chevron-icon path,
->>> .table-name:hover .chevron-icon path {
-  fill: #506784;
-}
-
-.db-edit {
-  position: relative;
-}
-.db-edit-icon {
-  display: block;
-}
-.db-edit-icon:hover path{
-  fill: var(--color-accent);
-  cursor: pointer;
-}
-
-.db-edit-tooltip {
-  visibility: hidden;
-  background-color: rgba(80, 103, 132, 0.75);
-  color: #fff;
-  text-align: center;
-  font-size: 11px;
-  padding: 0 6px;
-  line-height: 19px;;
-  position: absolute;
-  z-index: 5;
-  height: 19px;
-  left: 24px;
-  top: -12px;
-  border-radius: var(--border-radius-medium);
-  white-space: nowrap;
-}
-
-.db-edit:hover .db-edit-tooltip {
-  visibility: visible;
-}
-</style>

src/components/Splitpanes.vue

@@ -1,301 +0,0 @@
-<template>
-  <div
-    ref="container"
-    :class="[
-      'splitpanes',
-      `splitpanes--${horizontal ? 'horizontal' : 'vertical'}`,
-      { 'splitpanes--dragging': touch.dragging }
-    ]"
-  >
-    <div class="movable-splitter" ref="movableSplitter" :style="movableSplitterStyle" />
-    <div
-      class="splitpanes__pane"
-      ref="left"
-      :size="paneBefore.size"
-      max-size="30"
-      :style="styles[0]"
-    >
-      <slot name="left-pane" />
-    </div>
-    <!-- Splitter start-->
-    <div
-      class="splitpanes__splitter"
-      @mousedown="onMouseDown"
-      @touchstart="onMouseDown"
-    >
-      <div class="toggle-btn" @click="toggleFirstPane">
-        <img
-          class="direction-icon"
-          :src="require('@/assets/images/chevron.svg')"
-          :style="directionIconStyle"
-        >
-      </div>
-    </div>
-    <!-- splitter end -->
-    <div
-      class="splitpanes__pane"
-      ref="right"
-      :style="styles[1]"
-    >
-      <slot name="right-pane" />
-    </div>
-  </div>
-</template>
-
-<script>
-
-export default {
-  name: 'Splitpanes',
-  props: {
-    horizontal: { type: Boolean, default: false },
-    before: { type: Object },
-    after: { type: Object }
-  },
-  data () {
-    return {
-      container: null,
-      paneBefore: this.before,
-      paneAfter: this.after,
-      beforeMinimising: this.before.size,
-      touch: {
-        mouseDown: false,
-        dragging: false
-      },
-      movableSplitter: {
-        top: 0,
-        left: 0,
-        visibility: 'hidden'
-      }
-    }
-  },
-  computed: {
-    styles () {
-      return [
-        { [this.horizontal ? 'height' : 'width']: `${this.paneBefore.size}%` },
-        { [this.horizontal ? 'height' : 'width']: `${this.paneAfter.size}%` }
-      ]
-    },
-    movableSplitterStyle () {
-      const style = { ...this.movableSplitter }
-      style.top += '%'
-      style.left += '%'
-      return style
-    },
-    expanded () {
-      return this.paneBefore.size !== 0
-    },
-    directionIconStyle () {
-      const translation = 'translate(-50%, -50%)'
-      if (this.horizontal) {
-        return {
-          transform: `${translation} ${this.expanded ? 'rotate(-90deg)' : 'rotate(90deg)'}`
-        }
-      } else {
-        return {
-          transform: `${translation} ${this.expanded ? 'rotate(180deg)' : ''}`
-        }
-      }
-    }
-  },
-
-  methods: {
-    bindEvents () {
-      document.addEventListener('mousemove', this.onMouseMove, { passive: false })
-      document.addEventListener('mouseup', this.onMouseUp)
-
-      // Passive: false to prevent scrolling while touch dragging.
-      if ('ontouchstart' in window) {
-        document.addEventListener('touchmove', this.onMouseMove, { passive: false })
-        document.addEventListener('touchend', this.onMouseUp)
-      }
-    },
-
-    unbindEvents () {
-      document.removeEventListener('mousemove', this.onMouseMove, { passive: false })
-      document.removeEventListener('mouseup', this.onMouseUp)
-
-      if ('ontouchstart' in window) {
-        document.removeEventListener('touchmove', this.onMouseMove, { passive: false })
-        document.removeEventListener('touchend', this.onMouseUp)
-      }
-    },
-
-    onMouseDown () {
-      this.bindEvents()
-      this.touch.mouseDown = true
-    },
-
-    onMouseMove (event) {
-      if (this.touch.mouseDown) {
-        // Prevent scrolling while touch dragging (only works with an active event, eg. passive: false).
-        event.preventDefault()
-        this.touch.dragging = true
-        this.$set(this.movableSplitter, 'visibility', 'visible')
-        this.moveSplitter(event)
-      }
-    },
-
-    onMouseUp () {
-      this.touch.mouseDown = false
-      if (this.touch.dragging) {
-        const dragPercentage = this.horizontal
-          ? this.movableSplitter.top
-          : this.movableSplitter.left
-
-        this.paneBefore.size = dragPercentage
-        this.paneAfter.size = 100 - dragPercentage
-
-        this.movableSplitter = {
-          top: 0,
-          left: 0,
-          visibility: 'hidden'
-        }
-      }
-
-      // Keep dragging flag until click event is finished (click happens immediately after mouseup)
-      // in order to prevent emitting `splitter-click` event if splitter was dragged.
-      setTimeout(() => {
-        this.touch.dragging = false
-        this.unbindEvents()
-      }, 100)
-    },
-
-    // Get the cursor position relative to the splitpane container.
-    getCurrentMouseDrag (event) {
-      const rect = this.container.getBoundingClientRect()
-      const { clientX, clientY } = ('ontouchstart' in window && event.touches)
-        ? event.touches[0]
-        : event
-      return {
-        x: clientX - rect.left,
-        y: clientY - rect.top
-      }
-    },
-
-    // Returns the drag percentage of the splitter relative to the 2 panes it's inbetween.
-    // if the sum of size of the 2 cells is 60%, the dragPercentage range will be 0 to 100% of this 60%.
-    getCurrentDragPercentage (drag) {
-      drag = drag[this.horizontal ? 'y' : 'x']
-      // In the code bellow 'size' refers to 'width' for vertical and 'height' for horizontal layout.
-      const containerSize = this.container[this.horizontal ? 'clientHeight' : 'clientWidth']
-      return drag * 100 / containerSize
-    },
-
-    moveSplitter (event) {
-      const dragPercentage = this.getCurrentDragPercentage(this.getCurrentMouseDrag(event))
-      const paneBefore = this.paneBefore
-      const paneAfter = this.paneAfter
-
-      const paneBeforeMaxReached = paneBefore.max < 100 && (dragPercentage >= paneBefore.max)
-      const paneAfterMaxReached = paneAfter.max < 100 && (dragPercentage <= 100 - paneAfter.max)
-
-      const dir = this.horizontal ? 'top' : 'left'
-
-      // Prevent dragging beyond pane max.
-      if (paneBeforeMaxReached || paneAfterMaxReached) {
-        if (paneBeforeMaxReached) {
-          this.$set(this.movableSplitter, dir, paneBefore.max)
-        } else {
-          this.$set(this.movableSplitter, dir, Math.max(100 - paneAfter.max, 0))
-        }
-      } else {
-        this.$set(this.movableSplitter, dir, Math.min(Math.max(dragPercentage, 0), paneBefore.max))
-      }
-    },
-    toggleFirstPane () {
-      if (this.paneBefore.size > 0) {
-        this.beforeMinimising = this.paneBefore.size
-        this.paneBefore.size = 0
-      } else {
-        this.paneBefore.size = this.beforeMinimising
-      }
-      this.paneAfter.size = 100 - this.paneBefore.size
-    }
-  },
-  mounted () {
-    this.container = this.$refs.container
-  }
-}
-</script>
-
-<style>
-.splitpanes {
-  display: flex;
-  height: 100%;
-  position: relative;
-}
-
-.splitpanes--vertical {flex-direction: row;}
-.splitpanes--horizontal {flex-direction: column;}
-.splitpanes--dragging * {user-select: none;}
-
-.splitpanes__pane {
-  width: 100%;
-  height: 100%;
-  overflow: auto;
-}
-
-/* Splitter */
-
-.splitpanes--vertical > .splitpanes__splitter,
-.splitpanes--vertical.splitpanes--dragging {
-  cursor: col-resize;
-}
-.splitpanes--horizontal > .splitpanes__splitter,
-.splitpanes--horizontal.splitpanes--dragging {
-  cursor: row-resize;
-}
-
-.splitpanes__splitter {
-  touch-action: none;
-  background-color: var(--color-bg-light-2);
-  box-sizing: border-box;
-  position: relative;
-  flex-shrink: 0;
-  z-index: 1;
-}
-
-.movable-splitter {
-  position: absolute;
-  background-color:rgba(162, 177, 198, 0.5);
-}
-
-.splitpanes--vertical > .splitpanes__splitter,
-.splitpanes--vertical .movable-splitter {
-  width: 3px;
-  z-index: 5;
-  height: 100%
-}
-
-.splitpanes--horizontal > .splitpanes__splitter,
-.splitpanes--horizontal .movable-splitter {
-  height: 3px;
-  width: 100%;
-}
-.splitpanes__splitter .toggle-btn {
-  background-color: var(--color-bg-light-2);
-  border-radius: var(--border-radius-small);
-  position: absolute;
-  top: 50%;
-  left: 50%;
-  transform: translate(-50%, -50%);
-}
-
-.splitpanes__splitter .toggle-btn:hover {
-  cursor: pointer;
-}
-
-.splitpanes--vertical .toggle-btn {
-  height: 68px;
-  width: 15px;
-}
-.splitpanes--horizontal .toggle-btn {
-  width: 68px;
-  height: 15px;
-}
-.splitpanes__splitter .toggle-btn .direction-icon {
-  position: absolute;
-  top: 50%;
-  left: 50%;
-}
-</style>

src/components/Splitpanes/index.vue

@@ -0,0 +1,347 @@
+<template>
+  <div
+    ref="container"
+    :class="[
+      'splitpanes',
+      `splitpanes-${horizontal ? 'horizontal' : 'vertical'}`,
+      { 'splitpanes-dragging': dragging }
+    ]"
+  >
+    <div class="movable-splitter" ref="movableSplitter" :style="movableSplitterStyle" />
+    <div
+      class="splitpanes-pane"
+      ref="left"
+      :size="paneBefore.size"
+      max-size="30"
+      :style="styles.before"
+    >
+      <slot name="left-pane" />
+    </div>
+    <!-- Splitter start-->
+    <div
+      class="splitpanes-splitter"
+      @mousedown="bindEvents"
+      @touchstart="bindEvents"
+    >
+      <div
+        :class="[
+          'toggle-btns',
+          {
+            'both': after.max === 100 && before.max === 100 &&
+              paneAfter.size > 0 && paneBefore.size > 0
+          }
+        ]"
+      >
+        <div
+          v-if="after.max === 100 && paneAfter.size > 0"
+          class="toggle-btn"
+          @click="togglePane(paneBefore)"
+        >
+          <img
+            class="direction-icon"
+            :src="require('@/assets/images/chevron.svg')"
+            :style="directionBeforeIconStyle"
+          >
+        </div>
+        <div
+          v-if="before.max === 100 && paneBefore.size > 0"
+          class="toggle-btn"
+          @click="togglePane(paneAfter)"
+        >
+          <img
+            class="direction-icon"
+            :src="require('@/assets/images/chevron.svg')"
+            :style="directionAfterIconStyle"
+          >
+        </div>
+      </div>
+    </div>
+    <!-- splitter end -->
+    <div
+      class="splitpanes-pane"
+      ref="right"
+      :style="styles.after"
+    >
+      <slot name="right-pane" />
+    </div>
+  </div>
+</template>
+
+<script>
+import splitter from './splitter'
+
+export default {
+  name: 'Splitpanes',
+  props: {
+    horizontal: { type: Boolean, default: false },
+    before: { type: Object },
+    after: { type: Object }
+  },
+  data () {
+    return {
+      container: null,
+      paneBefore: this.before,
+      paneAfter: this.after,
+      beforeMinimising: {
+        before: this.before.size,
+        after: this.after.size
+      },
+      dragging: false,
+      movableSplitter: {
+        top: 0,
+        left: 0,
+        visibility: 'hidden'
+      }
+    }
+  },
+  computed: {
+    styles () {
+      return {
+        before: { [this.horizontal ? 'height' : 'width']: `${this.paneBefore.size}%` },
+        after: { [this.horizontal ? 'height' : 'width']: `${this.paneAfter.size}%` }
+      }
+    },
+    movableSplitterStyle () {
+      const style = { ...this.movableSplitter }
+      style.top += '%'
+      style.left += '%'
+      return style
+    },
+    directionBeforeIconStyle () {
+      const expanded = this.paneBefore.size !== 0
+      const translation = 'translate(-50%, -50%) '
+      let rotation = ''
+
+      if (this.horizontal) {
+        rotation = expanded ? 'rotate(90deg)' : 'rotate(-90deg)'
+      } else {
+        rotation = expanded ? 'rotate(0deg)' : 'rotate(180deg)'
+      }
+
+      return {
+        transform: translation + rotation
+      }
+    },
+    directionAfterIconStyle () {
+      const expanded = this.paneAfter.size !== 0
+      const translation = 'translate(-50%, -50%)'
+      let rotation = ''
+
+      if (this.horizontal) {
+        rotation = expanded ? 'rotate(-90deg)' : 'rotate(90deg)'
+      } else {
+        rotation = expanded ? 'rotate(180deg)' : 'rotate(0deg)'
+      }
+
+      return {
+        transform: translation + rotation
+      }
+    }
+  },
+
+  methods: {
+    bindEvents () {
+      // Passive: false to prevent scrolling while touch dragging.
+      document.addEventListener('mousemove', this.onMouseMove, { passive: false })
+      document.addEventListener('mouseup', this.onMouseUp)
+
+      if ('ontouchstart' in window) {
+        document.addEventListener('touchmove', this.onMouseMove, { passive: false })
+        document.addEventListener('touchend', this.onMouseUp)
+      }
+    },
+
+    unbindEvents () {
+      document.removeEventListener('mousemove', this.onMouseMove, { passive: false })
+      document.removeEventListener('mouseup', this.onMouseUp)
+
+      if ('ontouchstart' in window) {
+        document.removeEventListener('touchmove', this.onMouseMove, { passive: false })
+        document.removeEventListener('touchend', this.onMouseUp)
+      }
+    },
+
+    onMouseMove (event) {
+      event.preventDefault()
+      this.dragging = true
+      this.movableSplitter.visibility = 'visible'
+      this.moveSplitter(event)
+    },
+
+    onMouseUp () {
+      if (this.dragging) {
+        const dragPercentage = this.horizontal
+          ? this.movableSplitter.top
+          : this.movableSplitter.left
+
+        this.paneBefore.size = dragPercentage
+        this.paneAfter.size = 100 - dragPercentage
+
+        this.movableSplitter = {
+          top: 0,
+          left: 0,
+          visibility: 'hidden'
+        }
+
+        this.dragging = false
+      }
+
+      this.unbindEvents()
+    },
+
+    moveSplitter (event) {
+      const splitterInfo = {
+        container: this.container,
+        paneBeforeMax: this.paneBefore.max,
+        paneAfterMax: this.paneAfter.max,
+        isHorisontal: this.horizontal
+      }
+      const offset = splitter.calculateOffset(event, splitterInfo)
+      const dir = this.horizontal ? 'top' : 'left'
+      this.movableSplitter[dir] = offset
+    },
+
+    togglePane (pane) {
+      if (pane.size > 0) {
+        this.beforeMinimising.before = this.paneBefore.size
+        this.beforeMinimising.after = this.paneAfter.size
+        pane.size = 0
+        const otherPane = pane === this.paneBefore ? this.paneAfter : this.paneBefore
+        otherPane.size = 100 - pane.size
+      } else {
+        this.paneBefore.size = this.beforeMinimising.before
+        this.paneAfter.size = this.beforeMinimising.after
+      }
+    }
+  },
+  mounted () {
+    this.container = this.$refs.container
+  }
+}
+</script>
+
+<style>
+.splitpanes {
+  display: flex;
+  height: 100%;
+  position: relative;
+}
+
+.splitpanes-vertical {flex-direction: row;}
+.splitpanes-horizontal {flex-direction: column;}
+.splitpanes-dragging * {user-select: none;}
+
+.splitpanes-pane {
+  width: 100%;
+  height: 100%;
+  overflow: auto;
+}
+
+/* Splitter */
+
+.splitpanes-vertical > .splitpanes-splitter,
+.splitpanes-vertical.splitpanes-dragging {
+  cursor: col-resize;
+}
+.splitpanes-horizontal > .splitpanes-splitter,
+.splitpanes-horizontal.splitpanes-dragging {
+  cursor: row-resize;
+}
+
+.splitpanes-splitter {
+  touch-action: none;
+  background-color: var(--color-bg-light);
+  box-sizing: border-box;
+  position: relative;
+  flex-shrink: 0;
+  z-index: 1;
+}
+
+.splitpanes-horizontal > .splitpanes-splitter {
+  border-top: 1px solid var(--color-border-light);
+  border-bottom: 1px solid var(--color-border-light);
+}
+
+.splitpanes-vertical > .splitpanes-splitter {
+  border-left: 1px solid var(--color-border-light);
+  border-right: 1px solid var(--color-border-light);
+}
+
+.movable-splitter {
+  position: absolute;
+  background-color:rgba(162, 177, 198, 0.5);
+}
+
+.splitpanes-vertical > .splitpanes-splitter,
+.splitpanes-vertical > .movable-splitter {
+  width: 8px;
+  z-index: 5;
+  height: 100%
+}
+
+.splitpanes-horizontal > .splitpanes-splitter,
+.splitpanes-horizontal > .movable-splitter {
+  height: 8px;
+  width: 100%;
+  z-index: 5;
+}
+/* Toggle buttons */
+.toggle-btns {
+  position: absolute;
+  top: 50%;
+  left: 50%;
+  transform: translate(-50%, -50%);
+  display: flex;
+}
+
+.splitpanes-vertical > .splitpanes-splitter .toggle-btns {
+  flex-direction: column;
+}
+
+.splitpanes-horizontal > .splitpanes-splitter .toggle-btns {
+  flex-direction: row;
+}
+
+.toggle-btn {
+  background-color: var(--color-border-light);
+  border-radius: var(--border-radius-small);
+  border: 1px solid var(--color-border);
+  box-sizing: border-box;
+  position: relative;
+  cursor: pointer;
+}
+
+.splitpanes-vertical > .splitpanes-splitter .toggle-btn {
+  height: 49px;
+  width: 8px;
+}
+
+.splitpanes-horizontal > .splitpanes-splitter .toggle-btn {
+  width: 49px;
+  height: 8px;
+}
+
+.toggle-btn .direction-icon {
+  position: absolute;
+  top: 50%;
+  left: 50%;
+}
+
+.splitpanes-horizontal > .splitpanes-splitter .toggle-btns.both .toggle-btn:first-child {
+  border-radius: var(--border-radius-small) 0 0 var(--border-radius-small);
+}
+
+.splitpanes-horizontal > .splitpanes-splitter .toggle-btns.both .toggle-btn:last-child {
+  border-radius: 0 var(--border-radius-small) var(--border-radius-small) 0;
+  margin-left: -1px;
+}
+
+.splitpanes-vertical > .splitpanes-splitter .toggle-btns.both .toggle-btn:first-child {
+  border-radius: var(--border-radius-small) var(--border-radius-small) 0 0;
+}
+
+.splitpanes-vertical > .splitpanes-splitter .toggle-btns.both .toggle-btn:last-child {
+  border-radius: 0 0 var(--border-radius-small) var(--border-radius-small);
+  margin-top: -1px;
+}
+</style>

src/components/Splitpanes/splitter.js

@@ -0,0 +1,36 @@
+export default {
+  // Get the cursor position relative to the splitpane container.
+  getCurrentMouseDrag (event, container) {
+    const rect = container.getBoundingClientRect()
+    const { clientX, clientY } = ('ontouchstart' in window && event.touches)
+      ? event.touches[0]
+      : event
+    return {
+      x: clientX - rect.left,
+      y: clientY - rect.top
+    }
+  },
+
+  // Returns the drag percentage of the splitter relative to the 2 panes it's inbetween.
+  getCurrentDragPercentage (event, container, isHorisontal) {
+    let drag = this.getCurrentMouseDrag(event, container)
+    drag = drag[isHorisontal ? 'y' : 'x']
+    const containerSize = container[isHorisontal ? 'clientHeight' : 'clientWidth']
+    return drag * 100 / containerSize
+  },
+
+  // Returns the new position in percents.
+  calculateOffset (event, { container, isHorisontal, paneBeforeMax, paneAfterMax }) {
+    const dragPercentage = this.getCurrentDragPercentage(event, container, isHorisontal)
+
+    const paneBeforeMaxReached = paneBeforeMax < 100 && (dragPercentage >= paneBeforeMax)
+    const paneAfterMaxReached = paneAfterMax < 100 && (dragPercentage <= 100 - paneAfterMax)
+
+    // Prevent dragging beyond pane max.
+    if (paneBeforeMaxReached || paneAfterMaxReached) {
+      return paneBeforeMaxReached ? paneBeforeMax : Math.max(100 - paneAfterMax, 0)
+    } else {
+      return Math.min(Math.max(dragPercentage, 0), paneBeforeMax)
+    }
+  }
+}

src/components/SqlEditor.vue

@@ -1,82 +0,0 @@
-<template>
-  <div class="codemirror-container">
-    <codemirror v-model="query" :options="cmOptions" @changes="onCmChange" />
-  </div>
-</template>
-
-<script>
-import CM from 'codemirror'
-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.js'
-import 'codemirror/addon/hint/show-hint.css'
-import 'codemirror/addon/hint/sql-hint.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
-      },
-      result: null
-    }
-  },
-  watch: {
-    query () {
-      this.$emit('input', this.query)
-    }
-  },
-  methods: {
-    onCmChange (editor) {
-      // Don't show autocomplete after a space or semicolon
-      const ch = editor.getTokenAt(editor.getCursor()).string.slice(-1)
-      if (!ch || ch === ' ' || ch === ';') {
-        return
-      }
-
-      const hintOptions = {
-      //   tables: this.state.tables,
-        completeSingle: false,
-        completeOnSingleClick: true
-      }
-
-      // editor.hint.sql is defined when importing codemirror/addon/hint/sql-hint
-      // (this is mentioned in codemirror addon documentation)
-      // Reference the hint function imported here when including other hint addons
-      // or supply your own
-      CM.showHint(editor, CM.hint.sql, hintOptions)
-    }
-  }
-}
-</script>
-
-<style scoped>
-.codemirror-container {
-  flex-grow: 1;
-  min-height: 0;
-}
-
->>> .vue-codemirror {
-  height: 100%;
-  max-height: 100%;
-}
->>> .CodeMirror {
-  border: 1px solid var(--color-border);
-  border-radius: var(--border-radius-big);
-  height: 100%;
-  max-height: 100%;
-}
-</style>

src/components/SqlTable/Pager.vue

@@ -28,8 +28,11 @@ export default {
     return {
       page: this.value,
       chevron: `
-        <svg width="9" height="9" viewBox="0 0 8 12" fill="none" xmlns="http://www.w3.org/2000/svg">
-        <path d="M0.721924 9.93097L4.85292 5.79997L0.721924 1.66897L1.99992 0.399973L7.39992 5.79997L1.99992 11.2L0.721924 9.93097Z" fill="#506784"/>
+        <svg width="9" height="9" viewBox="0 0 8 12" fill="none">
+        <path
+          d="M0.721924 9.93097L4.85292 5.79997L0.721924 1.66897L1.99992 0.399973L7.39992
+            5.79997L1.99992 11.2L0.721924 9.93097Z" fill="#506784"
+        />
         </svg>
       `
     }
@@ -49,6 +52,7 @@ 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 data.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.values[col][rowIndex - 1 + currentPageData.start] }}
+              </div>
             </td>
           </tr>
         </tbody>
@@ -39,7 +40,9 @@
     </div>
     <div class="table-footer">
       <div class="table-footer-count">
-        {{ data.values.length}} {{data.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>
@@ -47,34 +50,53 @@
 </template>
 
 <script>
-import Pager from '@/components/Pager'
+import Pager from './Pager'
 
 export default {
   name: 'SqlTable',
   components: { Pager },
-  props: ['data', 'height'],
+  props: {
+    dataSet: Object,
+    time: String,
+    pageSize: {
+      type: Number,
+      default: 20
+    },
+    preview: Boolean
+  },
   data () {
     return {
       header: null,
       tableWidth: null,
-      currentPage: 1
+      currentPage: 1,
+      resizeObserver: null
     }
   },
   computed: {
+    columns () {
+      return this.dataSet.columns
+    },
+    rowCount () {
+      return this.dataSet.values[this.columns[0]].length
+    },
     cellStyle () {
-      const eq = this.tableWidth / this.data.columns.length
-
+      const eq = this.tableWidth / this.columns.length
       return { maxWidth: `${Math.max(eq, 100)}px` }
     },
-    pageSize () {
-      return Math.max(Math.floor(this.height / 40), 20)
-    },
     pageCount () {
-      return Math.ceil(this.data.values.length / this.pageSize)
+      return Math.ceil(this.rowCount / this.pageSize)
     },
     currentPageData () {
       const start = (this.currentPage - 1) * this.pageSize
-      return this.data.values.slice(start, start + this.pageSize)
+      let end = start + this.pageSize
+      if (end > this.rowCount - 1) {
+        end = this.rowCount - 1
+      }
+      return {
+        start,
+        end,
+        count: end - start + 1
+      }
     }
   },
   methods: {
@@ -82,24 +104,25 @@ export default {
       this.tableWidth = this.$refs['table-container'].offsetWidth
       this.$nextTick(() => {
         this.header = this.$refs.th.map(th => {
-          return { name: th.innerText, width: th.offsetWidth }
+          return { name: th.innerText, width: th.getBoundingClientRect().width }
         })
       })
     },
     onScrollTable () {
       this.$refs['header-container'].scrollLeft = this.$refs['table-container'].scrollLeft
-    },
-    functionName () {
-
     }
   },
   mounted () {
-    new ResizeObserver(this.calculateHeadersWidth).observe(this.$refs.table)
+    this.resizeObserver = new ResizeObserver(this.calculateHeadersWidth)
+    this.resizeObserver.observe(this.$refs.table)
     this.calculateHeadersWidth()
   },
+  beforeDestroy () {
+    this.resizeObserver.unobserve(this.$refs.table)
+  },
   watch: {
     currentPageData: 'calculateHeadersWidth',
-    data () {
+    dataSet () {
       this.currentPage = 1
     }
   }

src/components/TabContent.vue

@@ -1,209 +0,0 @@
-<template>
-  <div class="tab-content-container" v-show="isActive">
-    <splitpanes
-      class="query-results-splitter"
-      horizontal
-      :before="{ size: 50, max: 50 }"
-      :after="{ size: 50, max: 100 }"
-    >
-      <template #left-pane>
-        <div class="query-editor">
-          <sql-editor v-model="query" />
-          <div  class="run-btn-container">
-            <button
-              class="primary run-btn"
-              @click="execute"
-              :disabled="!$store.state.schema || !query"
-            >
-              Run
-            </button>
-          </div>
-        </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">
-              Run your query and get results here
-            </div>
-            <div v-show="isGettingResults" class="table-preview">
-              Fetching results...
-            </div>
-            <div v-show="result === undefined && !isGettingResults && !error" class="table-preview">
-              No rows retrieved according to your query
-            </div>
-            <div v-show="error" class="table-preview error">
-              {{ error }}
-            </div>
-            <sql-table v-if="result" :data="result" :height="tableViewHeight" />
-          </div>
-          <chart
-            :visible="view === 'chart'"
-            :sql-result="result"
-            :init-chart="initChart"
-            ref="chart"
-            @update="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: 'TabContent',
-  props: ['id', 'initName', 'initQuery', 'initChart', 'tabIndex'],
-  components: {
-    SqlEditor,
-    SqlTable,
-    Splitpanes,
-    ViewSwitcher,
-    Chart
-  },
-  data () {
-    return {
-      query: this.initQuery,
-      result: null,
-      view: 'table',
-      tableViewHeight: 0,
-      isUnsaved: !this.initName,
-      isGettingResults: false,
-      error: null
-    }
-  },
-  computed: {
-    isActive () {
-      return this.id === this.$store.state.currentTabId
-    }
-  },
-  created () {
-    this.$store.commit('setCurrentTab', this)
-  },
-  mounted () {
-    new ResizeObserver(this.handleResize).observe(this.$refs.bottomPane)
-    this.calculateTableHeight()
-  },
-  watch: {
-    isActive () {
-      if (this.isActive) {
-        this.$store.commit('setCurrentTab', this)
-      }
-    },
-    query () {
-      this.isUnsaved = true
-    },
-    isUnsaved () {
-      this.$store.commit('updateTabState', { index: this.tabIndex, newValue: this.isUnsaved })
-    }
-  },
-  methods: {
-    // Run a command in the database
-    execute () {
-      // this.$refs.output.textContent = 'Fetching results...' */
-      this.isGettingResults = true
-      this.result = null
-      this.error = null
-      this.$db.execute(this.query + ';')
-        .then(result => {
-          this.result = result
-        })
-        .catch(err => {
-          this.error = err
-        })
-        .finally(() => {
-          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)
-    },
-    getChartSatateForSave () {
-      return this.$refs.chart.getChartSatateForSave()
-    }
-  }
-}
-</script>
-
-<style scoped>
-.tab-content-container {
-  padding-top: 6px;
-  background-color: var(--color-bg-light);
-  border-top: 1px solid var(--color-border-light);
-  margin-top: -1px;
-}
-
-#bottomPane {
-  height: 100%;
-}
-
-.query-results-splitter {
-  height: calc(100vh - 110px);
-  background-color: var(--color-bg-light);
-}
-
-.run-btn {
-  margin-top: 24px;
-}
-
-.query-editor {
-  padding: 52px 52px 24px;
-  display: flex;
-  flex-direction: column;
-  height: 100%;
-  max-height: 100%;
-  box-sizing: border-box;
-  min-height: 190px;
-}
-
-.run-btn-container {
-  text-align: right;
-}
-
-.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/TableDescription.vue

@@ -1,84 +0,0 @@
-<template>
-  <div>
-    <div @click="colVisible = !colVisible" class="table-name">
-      <svg
-        :style="{transform: colVisible ? 'rotate(90deg)' : 'rotate(0)'}"
-        class="chevron-icon"
-        width="9"
-        height="9"
-        viewBox="0 0 8 12"
-        fill="none"
-        xmlns="http://www.w3.org/2000/svg"
-      >
-        <path
-          d="M0.721924 9.93097L4.85292 5.79997L0.721924 1.66897L1.99992 0.399973L7.39992 5.79997L1.99992 11.2L0.721924 9.93097Z"
-          :fill="colVisible ? '#506784' : 'rgba(80, 103, 132, 0.5)'"
-        />
-      </svg>
-      {{ name }}
-    </div>
-    <div v-show="colVisible" class="columns">
-      <div v-for="(col, index) in columns" :key="index" class="column">
-        {{ col.name }}
-        <span class="column-type">{{ col.type }}</span>
-      </div>
-    </div>
-  </div>
-</template>
-
-<script>
-import sqliteParser from 'sqlite-parser'
-
-export default {
-  name: 'TableDescription',
-  props: ['name', 'sql'],
-  data () {
-    return {
-      colVisible: false
-    }
-  },
-  computed: {
-    ast () {
-      return sqliteParser(this.sql)
-    },
-    columns () {
-      const columns = []
-      this.ast.statement[0].definition.forEach(item => {
-        if (item.variant === 'column') {
-          let type = item.datatype.variant
-          if (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
-    }
-  }
-}
-</script>
-<style scoped>
-.table-name, .column {
-  margin-top: 11px;
-}
-
-.table-name:hover {
-  cursor: pointer;
-}
-.columns {
-  margin-left: 24px;
-}
-.column-type {
-  display: inline-block;
-  background-color: var(--color-gray-light-4);
-  border: 1px solid var(--color-border);
-  border-radius: var(--border-radius-small);
-  padding: 2px 6px;
-  font-size: 11px;
-  text-transform: uppercase;
-}
-</style>

src/components/Tabs.vue

@@ -1,157 +0,0 @@
-<template>
-   <div id="tabs-container">
-    <div id="tabs__header" v-if="tabs.length > 0">
-      <div
-        v-for="(tab, index) in tabs"
-        :key="tab.id"
-        @click="selectTab(tab.id)"
-        :class="[{'tab__selected': (tab.id === selectedIndex)}, 'tab']"
-      >
-        <div class="tab-name">
-          <span v-show="tab.isUnsaved">*</span>
-          <span v-if="tab.name">{{ tab.name }}</span>
-          <span v-else class="tab-untitled">{{ tab.tempName }}</span>
-        </div>
-        <div>
-          <svg
-            class="close-icon"
-            @click.stop="closeTab(index)"
-            width="10"
-            height="10"
-            viewBox="0 0 14 14"
-            fill="none"
-            xmlns="http://www.w3.org/2000/svg"
-          >
-            <path
-              d="M14 1.41L12.59 0L7 5.59L1.41 0L0 1.41L5.59 7L0 12.59L1.41 14L7 8.41L12.59 14L14 12.59L8.41 7L14 1.41Z"
-              fill="#A2B1C6"/>
-          </svg>
-        </div>
-      </div>
-    </div>
-    <tab-content
-      v-for="(tab, index) in tabs"
-      :key="tab.id"
-      :id="tab.id"
-      :init-name="tab.name"
-      :init-query="tab.query"
-      :init-chart="tab.chart"
-      :tab-index="index"
-    />
-    <div v-if="tabs.length === 0" id="start-guide">
-      <span class="link" @click="$root.$emit('createNewQuery')">Create</span>
-      a new query from scratch or open the one from
-      <router-link class="link" to="/my-queries">My queries</router-link>
-    </div>
-  </div>
-</template>
-
-<script>
-import TabContent from '@/components/TabContent'
-
-export default {
-  components: {
-    TabContent
-  },
-  data () {
-    return {
-    }
-  },
-  computed: {
-    tabs () {
-      return this.$store.state.tabs
-    },
-    selectedIndex () {
-      return this.$store.state.currentTabId
-    }
-  },
-  methods: {
-    selectTab (id) {
-      this.$store.commit('setCurrentTabId', id)
-    },
-    closeTab (index) {
-      this.$store.commit('deleteTab', index)
-    }
-  }
-}
-</script>
-
-<style>
-#tabs-container {
-  position: relative;
-  height: 100%;
-}
-#tabs__header {
-  display: flex;
-  margin: 0;
-  max-width: 100%;
-  overflow: hidden;
-}
-#tabs__header .tab {
-  height: 36px;
-  background-color: var(--color-bg-light);
-  border-right: 1px solid var(--color-border-light);
-  border-bottom: 1px solid var(--color-border-light);
-  line-height: 36px;
-  font-size: 14px;
-  color: var(--color-text-base);
-  padding: 0 12px;
-  box-sizing: border-box;
-  position: relative;
-  max-width: 200px;
-  display: flex;
-  flex-shrink: 1;
-  min-width: 0;
-}
-#tabs__header .tab-name {
-  white-space: nowrap;
-  overflow: hidden;
-  text-overflow: ellipsis;
-  flex-shrink: 1;
-}
-
-#tabs__header div:hover {
-  cursor: pointer;
-}
-
-#tabs__header .tab__selected {
-  color: var(--color-text-active);
-  font-weight: 600;
-  border-bottom: none;
-}
-#tabs__header .tab__selected:hover {
-    cursor: default;
-}
-#tabs__header .tab__selected:before {
-  content: '';
-  position: absolute;
-  width: 100%;
-  height: 5px;
-  background-color: var(--color-accent);
-  top: 0;
-  left: 0;
-}
-
-.close-icon {
-  margin-left: 5px;
-}
-
-.close-icon:hover path {
-  fill: var(--color-text-base);
-  cursor: pointer;
-}
-#start-guide {
-  position: absolute;
-  top: 50%;
-  left: 50%;
-  transform: translate(-50%, -50%);
-  color: var(--color-text-base);
-  font-size: 14px;
-  text-align: center;
-}
-.link {
-  color: var(--color-accent);
-  text-decoration: none;
-  cursor: pointer;
-}
-</style>

src/components/TextField.vue

@@ -1,22 +1,28 @@
 <template>
   <div>
-    <div :class="['text-field-label', { error: errorMsg }]">{{ label }}</div>
+    <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>
     <input
       type="text"
       :placeholder="placeholder"
       :class="{ error: errorMsg }"
       :style="{ width: width }"
       :value="value"
-      @input="$emit('input',  $event.target.value)"
+      :disabled="disabled"
+      @input="$emit('input', $event.target.value)"
     />
-    <div class="text-field-error">{{ errorMsg }}</div>
+    <div v-show="errorMsg" class="text-field-error">{{ errorMsg }}</div>
   </div>
 </template>
 
 <script>
+import HintIcon from '@/components/svg/hint'
 export default {
   name: 'textField',
-  props: ['placeholder', 'label', 'errorMsg', 'value', 'width']
+  props: ['placeholder', 'label', 'errorMsg', 'value', 'width', 'hint', 'maxHintWidth', 'disabled'],
+  components: { HintIcon }
 }
 </script>
 
@@ -30,6 +36,7 @@ input {
   padding: 0 8px;
   font-size: 13px;
   box-sizing: border-box;
+  display: block;
 }
 
 input::placeholder {
@@ -40,24 +47,47 @@ input:focus {
   outline: none;
 }
 
+input:disabled {
+  background: var(--color-bg-light);
+  color: var(--color-text-light-2);
+  cursor: default;
+}
+
 input.error {
   border-color: var(--color-text-error);
 }
+
 .text-field-label {
   font-size: 12px;
   color: var(--color-text-base);
   padding-left: 8px;
   margin-bottom: 2px;
+  display: inline-block;
+  position: relative;
+}
+
+.text-field-label .hint{
+  position: absolute;
+  top: -2px;
+  right: -22px;
 }
 
 .text-field-label.error {
   color: var(--color-text-error);
 }
 
+.text-field-label.disabled {
+  color: var(--color-text-light-2);
+}
+
 .text-field-error {
   color: var(--color-text-error);
   font-size: 12px;
   padding-left: 8px;
   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 +1,68 @@
+<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

@@ -0,0 +1,53 @@
+<template>
+<div>
+  <svg
+    class="db-edit-icon"
+    width="18"
+    height="18"
+    viewBox="0 0 18 18"
+    fill="none"
+    @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" ref="tooltip">
+    Load another database or CSV
+  </span>
+</div>
+</template>
+
+<script>
+import tooltipMixin from '@/tooltipMixin'
+
+export default {
+  name: 'changeDbIcon',
+  mixins: [tooltipMixin],
+  methods: {
+    onClick () {
+      this.hideTooltip()
+      this.$emit('click')
+    }
+  }
+}
+</script>
+
+<style scoped>
+.db-edit-icon {
+  display: block;
+  cursor: pointer;
+}
+.db-edit-icon:hover path {
+  fill: var(--color-accent);
+}
+</style>

src/components/svg/chart.vue

@@ -0,0 +1,53 @@
+<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>