Add multi language spell check

res/css/_components.scss

@@ -207,6 +207,7 @@
 @import "./views/settings/_DevicesPanel.scss";
 @import "./views/settings/_E2eAdvancedPanel.scss";
 @import "./views/settings/_EmailAddresses.scss";
+@import "./views/settings/_SpellCheckLanguages.scss";
 @import "./views/settings/_IntegrationManager.scss";
 @import "./views/settings/_Notifications.scss";
 @import "./views/settings/_PhoneNumbers.scss";

res/css/views/settings/_SpellCheckLanguages.scss

@@ -0,0 +1,36 @@
+/*
+Copyright 2019 New Vector Ltd
+Copyright 2019 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+.mx_ExistingSpellCheckLanguage {
+    display: flex;
+    align-items: center;
+    margin-bottom: 5px;
+}
+
+.mx_ExistingSpellCheckLanguage_language {
+    flex: 1;
+    margin-right: 10px;
+}
+
+.mx_GeneralUserSettingsTab_spellCheckLanguageInput {
+    margin-top: 1em;
+    margin-bottom: 1em;
+}
+
+.mx_SpellCheckLanguages {
+    @mixin mx_Settings_fullWidthField;
+}

src/components/views/settings/SpellCheckSettings.tsx

@@ -0,0 +1,110 @@
+/*
+Copyright 2019 New Vector Ltd
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import React from 'react';
+import LanguageDropdown from "../../../components/views/elements/LanguageDropdown";
+import AccessibleButton from "../../../components/views/elements/AccessibleButton";
+import {_t} from "../../../languageHandler";
+
+interface ExistingSpellCheckLanguageIProps {
+    language: string,
+    onRemoved(language: string),
+};
+
+interface SpellCheckLanguagesIProps {
+    languages: Array<string>,
+    onLanguagesChange(languages: Array<string>),
+};
+
+interface SpellCheckLanguagesIState {
+    newLanguage: string,
+}
+
+export class ExistingSpellCheckLanguage extends React.Component<ExistingSpellCheckLanguageIProps> {
+    _onRemove = (e) => {
+        e.stopPropagation();
+        e.preventDefault();
+
+        return this.props.onRemoved(this.props.language);
+    };
+
+    render() {
+        return (
+            <div className="mx_ExistingSpellCheckLanguage">
+                <span className="mx_ExistingSpellCheckLanguage_language">{this.props.language}</span>
+                <AccessibleButton onClick={this._onRemove} kind="danger_sm">
+                    {_t("Remove")}
+                </AccessibleButton>
+            </div>
+        );
+    }
+}
+
+export default class SpellCheckLanguages extends React.Component<SpellCheckLanguagesIProps, SpellCheckLanguagesIState> {
+    constructor(props) {
+        super(props);
+        this.state = {
+            newLanguage: "",
+        }
+    }
+
+    _onRemoved = (language) => {
+        const languages = this.props.languages.filter((e) => e !== language);
+        this.props.onLanguagesChange(languages);
+    };
+
+    _onAddClick = (e) => {
+        e.stopPropagation();
+        e.preventDefault();
+
+        const language = this.state.newLanguage;
+
+        if (!language) return;
+        if (this.props.languages.includes(language)) return;
+
+        this.props.languages.push(language)
+        this.props.onLanguagesChange(this.props.languages);
+    };
+
+    _onNewLanguageChange = (language: string) => {
+        if (this.state.newLanguage === language) return;
+        this.setState({newLanguage: language});
+    };
+
+    render() {
+        const existingSpellCheckLanguages = this.props.languages.map((e) => {
+            return <ExistingSpellCheckLanguage language={e} onRemoved={this._onRemoved} key={e} />;
+        });
+
+        let addButton = (
+            <AccessibleButton onClick={this._onAddClick} kind="primary">
+                {_t("Add")}
+            </AccessibleButton>
+        );
+
+        return (
+            <div className="mx_SpellCheckLanguages">
+                {existingSpellCheckLanguages}
+                <form onSubmit={this._onAddClick} noValidate={true}>
+                    <LanguageDropdown className="mx_GeneralUserSettingsTab_spellCheckLanguageInput"
+                                      value={this.state.newLanguage}
+                                      onOptionChange={this._onNewLanguageChange} />
+                    {addButton}
+                </form>
+            </div>
+        );
+    };
+}

src/components/views/settings/tabs/user/GeneralUserSettingsTab.js

@@ -22,6 +22,7 @@ import ProfileSettings from "../../ProfileSettings";
 import * as languageHandler from "../../../../../languageHandler";
 import SettingsStore from "../../../../../settings/SettingsStore";
 import LanguageDropdown from "../../../elements/LanguageDropdown";
+import SpellCheckSettings from "../../SpellCheckSettings"
 import AccessibleButton from "../../../elements/AccessibleButton";
 import DeactivateAccountDialog from "../../../dialogs/DeactivateAccountDialog";
 import PropTypes from "prop-types";
@@ -49,6 +50,7 @@ export default class GeneralUserSettingsTab extends React.Component {
 
         this.state = {
             language: languageHandler.getCurrentLanguage(),
+            spellCheckLanguages: SettingsStore.getValue("spell-check-languages", null, false),
             haveIdServer: Boolean(MatrixClientPeg.get().getIdentityServerUrl()),
             serverSupportsSeparateAddAndBind: null,
             idServerHasUnsignedTerms: false,
@@ -182,6 +184,12 @@ export default class GeneralUserSettingsTab extends React.Component {
         PlatformPeg.get().reload();
     };
 
+    _onSpellCheckLanguagesChange = (languages) => {
+        SettingsStore.setValue("spell-check-languages", null, SettingLevel.DEVICE, languages);
+        this.setState({spellCheckLanguages: languages})
+        PlatformPeg.get().reload();
+    };
+
     _onPasswordChangeError = (err) => {
         // TODO: Figure out a design that doesn't involve replacing the current dialog
         let errMsg = err.error || "";
@@ -303,6 +311,16 @@ export default class GeneralUserSettingsTab extends React.Component {
         );
     }
 
+    _renderSpellCheckSection() {
+        return (
+            <div className="mx_SettingsTab_section">
+                <span className="mx_SettingsTab_subheading">{_t("Spell checking")}</span>
+                <SpellCheckSettings languages={this.state.spellCheckLanguages}
+                                    onLanguagesChange={this._onSpellCheckLanguagesChange} />
+            </div>
+        );
+    }
+
     _renderDiscoverySection() {
         const SetIdServer = sdk.getComponent("views.settings.SetIdServer");
 
@@ -409,6 +427,7 @@ export default class GeneralUserSettingsTab extends React.Component {
                 {this._renderProfileSection()}
                 {this._renderAccountSection()}
                 {this._renderLanguageSection()}
+                {this._renderSpellCheckSection()}
                 { discoverySection }
                 {this._renderIntegrationManagerSection() /* Has its own title */}
                 { accountManagementSection }

src/i18n/strings/en_EN.json

@@ -1117,6 +1117,7 @@
     "Use an Integration Manager to manage bots, widgets, and sticker packs.": "Use an Integration Manager to manage bots, widgets, and sticker packs.",
     "Manage integrations": "Manage integrations",
     "Integration Managers receive configuration data, and can modify widgets, send room invites, and set power levels on your behalf.": "Integration Managers receive configuration data, and can modify widgets, send room invites, and set power levels on your behalf.",
+    "Add": "Add",
     "Error encountered (%(errorDetail)s).": "Error encountered (%(errorDetail)s).",
     "Checking for an update...": "Checking for an update...",
     "No update available.": "No update available.",
@@ -1148,6 +1149,7 @@
     "Set a new account password...": "Set a new account password...",
     "Account": "Account",
     "Language and region": "Language and region",
+    "Spell checking": "Spell checking",
     "Agree to the identity server (%(serverName)s) Terms of Service to allow yourself to be discoverable by email address or phone number.": "Agree to the identity server (%(serverName)s) Terms of Service to allow yourself to be discoverable by email address or phone number.",
     "Account management": "Account management",
     "Deactivating your account is a permanent action - be careful!": "Deactivating your account is a permanent action - be careful!",
@@ -1345,7 +1347,6 @@
     "Invalid Email Address": "Invalid Email Address",
     "This doesn't appear to be a valid email address": "This doesn't appear to be a valid email address",
     "Unable to add email address": "Unable to add email address",
-    "Add": "Add",
     "We've sent you an email to verify your address. Please follow the instructions there and then click the button below.": "We've sent you an email to verify your address. Please follow the instructions there and then click the button below.",
     "Email Address": "Email Address",
     "Remove %(phone)s?": "Remove %(phone)s?",

src/languageHandler.tsx

@@ -346,6 +346,13 @@ export function setLanguage(preferredLangs: string | string[]) {
     });
 }
 
+export function setSpellCheckLanguages(preferredLangs: string[]) {
+    const plaf = PlatformPeg.get();
+    if (plaf) {
+        plaf.setLanguage(preferredLangs);
+    }
+}
+
 export function getAllLanguagesFromJson() {
     return getLangsJson().then((langsObject) => {
         const langs = [];

src/settings/Settings.ts

@@ -402,6 +402,10 @@ export const SETTINGS: {[setting: string]: ISetting} = {
         supportedLevels: LEVELS_DEVICE_ONLY_SETTINGS_WITH_CONFIG,
         default: "en",
     },
+    "spell-check-languages": {
+        supportedLevels: LEVELS_DEVICE_ONLY_SETTINGS_WITH_CONFIG,
+        default: [],
+    },
     "breadcrumb_rooms": {
         // not really a setting
         supportedLevels: [SettingLevel.ACCOUNT],