Native keyboard shortcuts settings (#1322)

* Fix style issue

* Add ExtensionKeyboardShortcutController

* Move descriptions

* Add separator line

4 files changed, 394 insertions, 26 deletions

diff --git a/ext/bg/css/settings2.css b/ext/bg/css/settings2.css
index 327c3f37..4a465a2c 100644
--- a/ext/bg/css/settings2.css
+++ b/ext/bg/css/settings2.css
@@ -791,7 +791,8 @@ select.short-height {
     flex: 0 0 auto;
     padding: var(--modal-padding-vertical-half) var(--modal-padding-horizontal);
 }
-.modal-body>.settings-item {
+.modal-body>.settings-item,
+.modal-settings-group>.settings-item {
     margin-left: calc(var(--modal-padding-horizontal) * -1);
 }
 .modal-body .settings-item {
@@ -912,6 +913,15 @@ button.icon-button.modal-header-button:active>.icon-button-inner>.icon {
         visibility 0s ease-in-out var(--animation-duration2);
 }
 
+.modal-separator-line {
+    border-bottom: var(--thin-border-size) solid var(--separator-color1);
+    margin: 0 calc(var(--modal-padding-horizontal) * -1);
+}
+.modal-separator-line-light {
+    border-bottom: var(--thin-border-size) solid var(--separator-color2);
+    margin: 0 calc(var(--modal-padding-horizontal) * -1);
+}
+
 
 /* Status footer */
 .status-footer-container {
@@ -1944,11 +1954,6 @@ input.sentence-termination-character-input2 {
     padding-left: 0.375em;
 }
 
-.anki-card-primary-separator {
-    border-bottom: var(--thin-border-size) solid var(--separator-color1);
-    margin: 0 calc(var(--modal-padding-horizontal) * -1);
-}
-
 
 /* Generic layouts */
 .margin-above {
diff --git a/ext/bg/js/settings2/extension-keyboard-shortcuts-controller.js b/ext/bg/js/settings2/extension-keyboard-shortcuts-controller.js
new file mode 100644
index 00000000..9c930703
--- /dev/null
+++ b/ext/bg/js/settings2/extension-keyboard-shortcuts-controller.js
@@ -0,0 +1,292 @@
+/*
+ * Copyright (C) 2021  Yomichan Authors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/* global
+ * HotkeyUtil
+ * KeyboardMouseInputField
+ * api
+ */
+
+class ExtensionKeyboardShortcutController {
+    constructor(settingsController) {
+        this._settingsController = settingsController;
+        this._resetButton = null;
+        this._clearButton = null;
+        this._listContainer = null;
+        this._hotkeyUtil = new HotkeyUtil();
+        this._os = null;
+        this._entries = [];
+    }
+
+    get hotkeyUtil() {
+        return this._hotkeyUtil;
+    }
+
+    async prepare() {
+        this._resetButton = document.querySelector('#extension-hotkey-list-reset-all');
+        this._clearButton = document.querySelector('#extension-hotkey-list-clear-all');
+        this._listContainer = document.querySelector('#extension-hotkey-list');
+
+        const canResetCommands = this.canResetCommands();
+        const canModifyCommands = this.canModifyCommands();
+        this._resetButton.hidden = !canResetCommands;
+        this._clearButton.hidden = !canModifyCommands;
+
+        if (canResetCommands) {
+            this._resetButton.addEventListener('click', this._onResetClick.bind(this));
+        }
+        if (canModifyCommands) {
+            this._clearButton.addEventListener('click', this._onClearClick.bind(this));
+        }
+
+        const {platform: {os}} = await api.getEnvironmentInfo();
+        this._os = os;
+        this._hotkeyUtil.os = os;
+
+        const commands = await this._getCommands();
+        this._setupCommands(commands);
+    }
+
+    async resetCommand(name) {
+        await this._resetCommand(name);
+
+        let key = null;
+        let modifiers = [];
+
+        const commands = await this._getCommands();
+        for (const {name: name2, shortcut} of commands) {
+            if (name === name2) {
+                ({key, modifiers} = this._hotkeyUtil.convertCommandToInput(shortcut));
+                break;
+            }
+        }
+
+        return {key, modifiers};
+    }
+
+    async updateCommand(name, key, modifiers) {
+        // Firefox-only; uses Promise API
+        const shortcut = this._hotkeyUtil.convertInputToCommand(key, modifiers);
+        return await chrome.commands.update({name, shortcut});
+    }
+
+    canResetCommands() {
+        return isObject(chrome.commands) && typeof chrome.commands.reset === 'function';
+    }
+
+    canModifyCommands() {
+        return isObject(chrome.commands) && typeof chrome.commands.update === 'function';
+    }
+
+    // Add
+
+    _onResetClick(e) {
+        e.preventDefault();
+        this._resetAllCommands();
+    }
+
+    _onClearClick(e) {
+        e.preventDefault();
+        this._clearAllCommands();
+    }
+
+    _getCommands() {
+        return new Promise((resolve, reject) => {
+            if (!(isObject(chrome.commands) && typeof chrome.commands.getAll === 'function')) {
+                resolve([]);
+                return;
+            }
+
+            chrome.commands.getAll((result) => {
+                const e = chrome.runtime.lastError;
+                if (e) {
+                    reject(new Error(e.message));
+                } else {
+                    resolve(result);
+                }
+            });
+        });
+    }
+
+    _setupCommands(commands) {
+        for (const entry of this._entries) {
+            entry.cleanup();
+        }
+        this._entries = [];
+
+        const fragment = document.createDocumentFragment();
+
+        for (const {name, description, shortcut} of commands) {
+            if (name.startsWith('_')) { continue; }
+
+            const {key, modifiers} = this._hotkeyUtil.convertCommandToInput(shortcut);
+
+            const node = this._settingsController.instantiateTemplate('extension-hotkey-list-item');
+            fragment.appendChild(node);
+
+            const entry = new ExtensionKeyboardShortcutHotkeyEntry(this, node, name, description, key, modifiers, this._os);
+            entry.prepare();
+            this._entries.push(entry);
+        }
+
+        this._listContainer.textContent = '';
+        this._listContainer.appendChild(fragment);
+    }
+
+    async _resetAllCommands() {
+        if (!this.canModifyCommands()) { return; }
+
+        let commands = await this._getCommands();
+        const promises = [];
+
+        for (const {name} of commands) {
+            if (name.startsWith('_')) { continue; }
+            promises.push(this._resetCommand(name));
+        }
+
+        await Promise.all(promises);
+
+        commands = await this._getCommands();
+        this._setupCommands(commands);
+    }
+
+    async _clearAllCommands() {
+        if (!this.canModifyCommands()) { return; }
+
+        let commands = await this._getCommands();
+        const promises = [];
+
+        for (const {name} of commands) {
+            if (name.startsWith('_')) { continue; }
+            promises.push(this.updateCommand(name, null, []));
+        }
+
+        await Promise.all(promises);
+
+        commands = await this._getCommands();
+        this._setupCommands(commands);
+    }
+
+    async _resetCommand(name) {
+        // Firefox-only; uses Promise API
+        return await chrome.commands.reset(name);
+    }
+}
+
+class ExtensionKeyboardShortcutHotkeyEntry {
+    constructor(parent, node, name, description, key, modifiers, os) {
+        this._parent = parent;
+        this._node = node;
+        this._name = name;
+        this._description = description;
+        this._key = key;
+        this._modifiers = modifiers;
+        this._os = os;
+        this._input = null;
+        this._inputField = null;
+        this._eventListeners = new EventListenerCollection();
+    }
+
+    prepare() {
+        this._node.querySelector('.settings-item-label').textContent = this._description || this._name;
+
+        const button = this._node.querySelector('.extension-hotkey-list-item-button');
+        const input = this._node.querySelector('input');
+
+        this._input = input;
+
+        if (this._parent.canModifyCommands()) {
+            this._inputField = new KeyboardMouseInputField(input, null, this._os);
+            this._inputField.prepare(this._key, this._modifiers, false, true);
+            this._eventListeners.on(this._inputField, 'change', this._onInputFieldChange.bind(this));
+            this._eventListeners.addEventListener(button, 'menuClose', this._onMenuClose.bind(this));
+            this._eventListeners.addEventListener(input, 'blur', this._onInputFieldBlur.bind(this));
+        } else {
+            input.readOnly = true;
+            input.value = this._parent.hotkeyUtil.getInputDisplayValue(this._key, this._modifiers);
+            button.hidden = true;
+        }
+    }
+
+    cleanup() {
+        this._eventListeners.removeAllEventListeners();
+        if (this._node.parentNode !== null) {
+            this._node.parentNode.removeChild(this._node);
+        }
+        if (this._inputField !== null) {
+            this._inputField.cleanup();
+            this._inputField = null;
+        }
+    }
+
+    // Private
+
+    _onInputFieldChange(e) {
+        const {key, modifiers} = e;
+        this._tryUpdateInput(key, modifiers, false);
+    }
+
+    _onInputFieldBlur() {
+        this._updateInput();
+    }
+
+    _onMenuClose(e) {
+        switch (e.detail.action) {
+            case 'clearInput':
+                this._tryUpdateInput(null, [], true);
+                break;
+            case 'resetInput':
+                this._resetInput();
+                break;
+        }
+    }
+
+    _updateInput() {
+        this._inputField.setInput(this._key, this._modifiers);
+        delete this._input.dataset.invalid;
+    }
+
+    async _tryUpdateInput(key, modifiers, updateInput) {
+        let okay = (key === null ? (modifiers.length === 0) : (modifiers.length !== 0));
+        if (okay) {
+            try {
+                await this._parent.updateCommand(this._name, key, modifiers);
+            } catch (e) {
+                okay = false;
+            }
+        }
+
+        if (okay) {
+            this._key = key;
+            this._modifiers = modifiers;
+            delete this._input.dataset.invalid;
+        } else {
+            this._input.dataset.invalid = 'true';
+        }
+
+        if (updateInput) {
+            this._updateInput();
+        }
+    }
+
+    async _resetInput() {
+        const {key, modifiers} = await this._parent.resetCommand(this._name);
+        this._key = key;
+        this._modifiers = modifiers;
+        this._updateInput();
+    }
+}
diff --git a/ext/bg/js/settings2/settings-main.js b/ext/bg/js/settings2/settings-main.js
index 76a40d81..31c5b0fa 100644
--- a/ext/bg/js/settings2/settings-main.js
+++ b/ext/bg/js/settings2/settings-main.js
@@ -24,6 +24,7 @@
  * DictionaryController
  * DictionaryImportController
  * DocumentFocusController
+ * ExtensionKeyboardShortcutController
  * GenericSettingController
  * KeyboardShortcutController
  * ModalController
@@ -133,6 +134,9 @@ async function setupGenericSettingsController(genericSettingController) {
         const keyboardShortcutController = new KeyboardShortcutController(settingsController);
         keyboardShortcutController.prepare();
 
+        const extensionKeyboardShortcutController = new ExtensionKeyboardShortcutController(settingsController);
+        extensionKeyboardShortcutController.prepare();
+
         const popupWindowController = new PopupWindowController();
         popupWindowController.prepare();
 
diff --git a/ext/bg/settings2.html b/ext/bg/settings2.html
index e55df47a..63498020 100644
--- a/ext/bg/settings2.html
+++ b/ext/bg/settings2.html
@@ -1628,32 +1628,32 @@
             <div class="settings-item-left">
                 <div class="settings-item-label">
                     <p>
-                        Yomichan includes keyboard shortcuts for some common actions that can be configured
-                        using the web browser's settings.
-                        To configure these shortcuts:
+                        Yomichan has two categories of keyboard shortcuts:
                     </p>
-
-                    <ul data-show-for-browser="chrome">
-                        <li>Open <a data-select-on-click="">chrome://extensions/shortcuts</a> in a new tab.</li>
-                        <li>Find the <em>Yomichan</em> section and configure the shortcuts.</li>
-                    </ul>
-
-                    <ul data-show-for-browser="edge">
-                        <li>Open <a data-select-on-click="">edge://extensions/shortcuts</a> in a new tab.</li>
-                        <li>Find the <em>Yomichan</em> section and configure the shortcuts.</li>
-                    </ul>
-
-                    <ul data-show-for-browser="firefox">
-                        <li>Open the extensions page (<a data-select-on-click="">about:addons</a>)</li>
-                        <li>Click the button on the right with the gear icon, then click <em>Manage Extension Shortcuts</em>.</li>
-                        <li>Find the <em>Yomichan</em> section and configure the shortcuts.</li>
+                    <ul>
+                        <li>
+                            <strong>Standard</strong> keyboard shortcuts are controlled by the extension, and can be added, removed,
+                            and configured to work on webpages that Yomichan functions on.
+                        </li>
+                        <li>
+                            <strong>Native</strong> keyboard shortcuts are controlled by the web browser, and function globally
+                            within the web browser<span data-show-for-browser="chrome edge"> or system-wide</span>.
+                        </li>
                     </ul>
                 </div>
             </div>
         </div></div>
         <div class="settings-item settings-item-button" data-modal-action="show,keyboard-shortcuts"><div class="settings-item-inner">
             <div class="settings-item-left">
-                <div class="settings-item-label">Configure keyboard shortcuts&hellip;</div>
+                <div class="settings-item-label">Configure standard keyboard shortcuts&hellip;</div>
+            </div>
+            <div class="settings-item-right open-panel-button-container">
+                <button class="icon-button"><span class="icon-button-inner"><span class="icon" data-icon="material-right-arrow"></span></span></button>
+            </div>
+        </div></div>
+        <div class="settings-item settings-item-button" data-modal-action="show,extension-keyboard-shortcuts"><div class="settings-item-inner">
+            <div class="settings-item-left">
+                <div class="settings-item-label">Configure native keyboard shortcuts&hellip;</div>
             </div>
             <div class="settings-item-right open-panel-button-container">
                 <button class="icon-button"><span class="icon-button-inner"><span class="icon" data-icon="material-right-arrow"></span></span></button>
@@ -2534,7 +2534,7 @@
                 </select>
             </div>
         </div></div>
-        <div class="anki-card-primary-separator"></div>
+        <div class="modal-separator-line"></div>
         <div class="settings-item"><div class="settings-item-inner">
             <div class="settings-item-left">
                 <div class="settings-item-label">Deck</div>
@@ -3042,6 +3042,55 @@
     </div>
 </div></div>
 
+<div id="extension-keyboard-shortcuts" class="modal-container" tabindex="-1" role="dialog" hidden><div class="modal-content">
+    <div class="modal-header">
+        <div class="modal-title">Native Keyboard Shortcuts</div>
+        <div class="modal-header-button-container">
+            <div class="modal-header-button-group">
+                <button class="icon-button modal-header-button" data-modal-action="expand"><span class="icon-button-inner"><span class="icon" data-icon="expand"></span></span></button>
+                <button class="icon-button modal-header-button" data-modal-action="collapse"><span class="icon-button-inner"><span class="icon" data-icon="collapse"></span></span></button>
+            </div>
+        </div>
+    </div>
+    <div class="modal-body">
+        <div>
+            <p data-show-for-browser="chrome edge">
+                The native keyboard shortcuts are listed below,
+                but cannot be configured from within the extension on this browser.
+                To configure these shortcuts:
+            </p>
+
+            <p data-show-for-browser="firefox">
+                The native keyboard shortcuts can be configured below on this browser,
+                or by doing the following:
+            </p>
+
+            <ul data-show-for-browser="chrome">
+                <li>Open <a data-select-on-click="">chrome://extensions/shortcuts</a> in a new tab.</li>
+                <li>Find the <em>Yomichan</em> section and configure the shortcuts.</li>
+            </ul>
+
+            <ul data-show-for-browser="edge">
+                <li>Open <a data-select-on-click="">edge://extensions/shortcuts</a> in a new tab.</li>
+                <li>Find the <em>Yomichan</em> section and configure the shortcuts.</li>
+            </ul>
+
+            <ul data-show-for-browser="firefox">
+                <li>Open the extensions page (<a data-select-on-click="">about:addons</a>)</li>
+                <li>Click the button on the right with the gear icon, then click <em>Manage Extension Shortcuts</em>.</li>
+                <li>Find the <em>Yomichan</em> section and configure the shortcuts.</li>
+            </ul>
+        </div>
+        <div class="modal-separator-line"></div>
+        <div class="modal-settings-group" id="extension-hotkey-list"></div>
+    </div>
+    <div class="modal-footer">
+        <button class="low-emphasis danger" id="extension-hotkey-list-reset-all">Reset All</button>
+        <button class="low-emphasis danger" id="extension-hotkey-list-clear-all">Clear All</button>
+        <button data-modal-action="hide">Close</button>
+    </div>
+</div></div>
+
 <!-- Keyboard shortcuts templates -->
 <template id="hotkey-list-item-template"><div class="hotkey-list-item"><div class="hotkey-list-item-grid">
     <div class="hotkey-list-item-index-cell generic-list-index-prefix"></div>
@@ -3101,12 +3150,29 @@
     </div>
 </div></div></template>
 
+<template id="extension-hotkey-list-item-template"><div class="settings-item"><div class="settings-item-inner settings-item-inner-wrappable">
+    <div class="settings-item-left">
+        <div class="settings-item-label"></div>
+    </div>
+    <div class="settings-item-right">
+        <div class="flex-row-nowrap">
+            <input type="text">
+            <button class="icon-button extension-hotkey-list-item-button" data-menu="extension-hotkey-list-item-menu" data-menu-position="below left"><span class="icon-button-inner"><span class="icon" data-icon="kebab-menu"></span></span></button>
+        </div>
+    </div>
+</div></div></template>
+
 <template id="hotkey-list-item-menu-template"><div class="popup-menu-container" tabindex="-1" role="dialog"><div class="popup-menu"><div class="popup-menu-body">
     <button class="popup-menu-item" data-menu-action="clearInputs">Clear input</button>
     <button class="popup-menu-item" data-menu-action="resetInput">Reset input</button>
     <button class="popup-menu-item" data-menu-action="delete">Delete</button>
 </div></div></div></template>
 
+<template id="extension-hotkey-list-item-menu-template"><div class="popup-menu-container" tabindex="-1" role="dialog"><div class="popup-menu"><div class="popup-menu-body">
+    <button class="popup-menu-item" data-menu-action="clearInput">Clear input</button>
+    <button class="popup-menu-item" data-menu-action="resetInput">Reset input</button>
+</div></div></div></template>
+
 
 <!-- Scripts -->
 <script src="/mixed/lib/jszip.min.js"></script>
@@ -3165,6 +3231,7 @@
 <script src="/bg/js/settings/status-footer.js"></script>
 <script src="/bg/js/settings/storage-controller.js"></script>
 
+<script src="/bg/js/settings2/extension-keyboard-shortcuts-controller.js"></script>
 <script src="/bg/js/settings2/keyboard-shortcuts-controller.js"></script>
 <script src="/bg/js/settings2/nested-popups-controller.js"></script>
 <script src="/bg/js/settings2/popup-window-controller.js"></script>