1 files changed, 367 insertions, 0 deletions
diff --git a/ext/js/pages/settings/keyboard-shortcuts-controller.js b/ext/js/pages/settings/keyboard-shortcuts-controller.js
new file mode 100644
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--- /dev/null
+++ b/ext/js/pages/settings/keyboard-shortcuts-controller.js
@@ -0,0 +1,367 @@
+/*
+ * 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
+ * KeyboardMouseInputField
+ */
+
+class KeyboardShortcutController {
+    constructor(settingsController) {
+        this._settingsController = settingsController;
+        this._entries = [];
+        this._os = null;
+        this._addButton = null;
+        this._resetButton = null;
+        this._listContainer = null;
+        this._emptyIndicator = null;
+        this._stringComparer = new Intl.Collator('en-US'); // Invariant locale
+        this._scrollContainer = null;
+    }
+
+    get settingsController() {
+        return this._settingsController;
+    }
+
+    async prepare() {
+        const {platform: {os}} = await yomichan.api.getEnvironmentInfo();
+        this._os = os;
+
+        this._addButton = document.querySelector('#hotkey-list-add');
+        this._resetButton = document.querySelector('#hotkey-list-reset');
+        this._listContainer = document.querySelector('#hotkey-list');
+        this._emptyIndicator = document.querySelector('#hotkey-list-empty');
+        this._scrollContainer = document.querySelector('#keyboard-shortcuts-modal .modal-body');
+
+        this._addButton.addEventListener('click', this._onAddClick.bind(this));
+        this._resetButton.addEventListener('click', this._onResetClick.bind(this));
+        this._settingsController.on('optionsChanged', this._onOptionsChanged.bind(this));
+
+        await this._updateOptions();
+    }
+
+    async addEntry(terminationCharacterEntry) {
+        const options = await this._settingsController.getOptions();
+        const {inputs: {hotkeys}} = options;
+
+        await this._settingsController.modifyProfileSettings([{
+            action: 'splice',
+            path: 'inputs.hotkeys',
+            start: hotkeys.length,
+            deleteCount: 0,
+            items: [terminationCharacterEntry]
+        }]);
+
+        await this._updateOptions();
+        this._scrollContainer.scrollTop = this._scrollContainer.scrollHeight;
+    }
+
+    async deleteEntry(index) {
+        const options = await this._settingsController.getOptions();
+        const {inputs: {hotkeys}} = options;
+
+        if (index < 0 || index >= hotkeys.length) { return false; }
+
+        await this._settingsController.modifyProfileSettings([{
+            action: 'splice',
+            path: 'inputs.hotkeys',
+            start: index,
+            deleteCount: 1,
+            items: []
+        }]);
+
+        await this._updateOptions();
+        return true;
+    }
+
+    async modifyProfileSettings(targets) {
+        return await this._settingsController.modifyProfileSettings(targets);
+    }
+
+    async getDefaultHotkeys() {
+        const defaultOptions = await this._settingsController.getDefaultOptions();
+        return defaultOptions.profiles[0].options.inputs.hotkeys;
+    }
+
+    // Private
+
+    _onOptionsChanged({options}) {
+        for (const entry of this._entries) {
+            entry.cleanup();
+        }
+
+        this._entries = [];
+        const {inputs: {hotkeys}} = options;
+        const fragment = document.createDocumentFragment();
+
+        for (let i = 0, ii = hotkeys.length; i < ii; ++i) {
+            const hotkeyEntry = hotkeys[i];
+            const node = this._settingsController.instantiateTemplate('hotkey-list-item');
+            fragment.appendChild(node);
+            const entry = new KeyboardShortcutHotkeyEntry(this, hotkeyEntry, i, node, this._os, this._stringComparer);
+            this._entries.push(entry);
+            entry.prepare();
+        }
+
+        this._listContainer.appendChild(fragment);
+        this._listContainer.hidden = (hotkeys.length === 0);
+        this._emptyIndicator.hidden = (hotkeys.length !== 0);
+    }
+
+    _onAddClick(e) {
+        e.preventDefault();
+        this._addNewEntry();
+    }
+
+    _onResetClick(e) {
+        e.preventDefault();
+        this._reset();
+    }
+
+    async _addNewEntry() {
+        const newEntry = {
+            action: '',
+            key: null,
+            modifiers: [],
+            scopes: ['popup', 'search'],
+            enabled: true
+        };
+        return await this.addEntry(newEntry);
+    }
+
+    async _updateOptions() {
+        const options = await this._settingsController.getOptions();
+        this._onOptionsChanged({options});
+    }
+
+    async _reset() {
+        const value = await this.getDefaultHotkeys();
+        await this._settingsController.setProfileSetting('inputs.hotkeys', value);
+        await this._updateOptions();
+    }
+}
+
+class KeyboardShortcutHotkeyEntry {
+    constructor(parent, data, index, node, os, stringComparer) {
+        this._parent = parent;
+        this._data = data;
+        this._index = index;
+        this._node = node;
+        this._os = os;
+        this._eventListeners = new EventListenerCollection();
+        this._inputField = null;
+        this._actionSelect = null;
+        this._scopeCheckboxes = null;
+        this._scopeCheckboxContainers = null;
+        this._basePath = `inputs.hotkeys[${this._index}]`;
+        this._stringComparer = stringComparer;
+    }
+
+    prepare() {
+        const node = this._node;
+
+        const menuButton = node.querySelector('.hotkey-list-item-button');
+        const input = node.querySelector('.hotkey-list-item-input');
+        const action = node.querySelector('.hotkey-list-item-action');
+        const scopeCheckboxes = node.querySelectorAll('.hotkey-scope-checkbox');
+        const scopeCheckboxContainers = node.querySelectorAll('.hotkey-scope-checkbox-container');
+        const enabledToggle = node.querySelector('.hotkey-list-item-enabled');
+
+        this._actionSelect = action;
+        this._scopeCheckboxes = scopeCheckboxes;
+        this._scopeCheckboxContainers = scopeCheckboxContainers;
+
+        this._inputField = new KeyboardMouseInputField(input, null, this._os);
+        this._inputField.prepare(this._data.key, this._data.modifiers, false, true);
+
+        action.value = this._data.action;
+
+        enabledToggle.checked = this._data.enabled;
+        enabledToggle.dataset.setting = `${this._basePath}.enabled`;
+
+        this._updateCheckboxVisibility();
+        this._updateCheckboxStates();
+
+        for (const scopeCheckbox of scopeCheckboxes) {
+            this._eventListeners.addEventListener(scopeCheckbox, 'change', this._onScopeCheckboxChange.bind(this), false);
+        }
+        this._eventListeners.addEventListener(menuButton, 'menuClose', this._onMenuClose.bind(this), false);
+        this._eventListeners.addEventListener(this._actionSelect, 'change', this._onActionSelectChange.bind(this), false);
+        this._eventListeners.on(this._inputField, 'change', this._onInputFieldChange.bind(this));
+    }
+
+    cleanup() {
+        this._eventListeners.removeAllEventListeners();
+        this._inputField.cleanup();
+        if (this._node.parentNode !== null) {
+            this._node.parentNode.removeChild(this._node);
+        }
+    }
+
+    // Private
+
+    _onMenuClose(e) {
+        switch (e.detail.action) {
+            case 'delete':
+                this._delete();
+                break;
+            case 'clearInputs':
+                this._inputField.clearInputs();
+                break;
+            case 'resetInput':
+                this._resetInput();
+                break;
+        }
+    }
+
+    _onInputFieldChange({key, modifiers}) {
+        this._setKeyAndModifiers(key, modifiers);
+    }
+
+    _onScopeCheckboxChange(e) {
+        const node = e.currentTarget;
+        const {scope} = node.dataset;
+        if (typeof scope !== 'string') { return; }
+        this._setScopeEnabled(scope, node.checked);
+    }
+
+    _onActionSelectChange(e) {
+        const value = e.currentTarget.value;
+        this._setAction(value);
+    }
+
+    async _delete() {
+        this._parent.deleteEntry(this._index);
+    }
+
+    async _setKeyAndModifiers(key, modifiers) {
+        this._data.key = key;
+        this._data.modifiers = modifiers;
+        await this._modifyProfileSettings([
+            {
+                action: 'set',
+                path: `${this._basePath}.key`,
+                value: key
+            },
+            {
+                action: 'set',
+                path: `${this._basePath}.modifiers`,
+                value: modifiers
+            }
+        ]);
+    }
+
+    async _setScopeEnabled(scope, enabled) {
+        const scopes = this._data.scopes;
+        const index = scopes.indexOf(scope);
+        if ((index >= 0) === enabled) { return; }
+
+        if (enabled) {
+            scopes.push(scope);
+            const stringComparer = this._stringComparer;
+            scopes.sort((scope1, scope2) => stringComparer.compare(scope1, scope2));
+        } else {
+            scopes.splice(index, 1);
+        }
+
+        await this._modifyProfileSettings([{
+            action: 'set',
+            path: `${this._basePath}.scopes`,
+            value: scopes
+        }]);
+    }
+
+    async _modifyProfileSettings(targets) {
+        return await this._parent.settingsController.modifyProfileSettings(targets);
+    }
+
+    async _resetInput() {
+        const defaultHotkeys = await this._parent.getDefaultHotkeys();
+        const defaultValue = this._getDefaultKeyAndModifiers(defaultHotkeys, this._data.action);
+        if (defaultValue === null) { return; }
+
+        const {key, modifiers} = defaultValue;
+        await this._setKeyAndModifiers(key, modifiers);
+        this._inputField.setInput(key, modifiers);
+    }
+
+    _getDefaultKeyAndModifiers(defaultHotkeys, action) {
+        for (const {action: action2, key, modifiers} of defaultHotkeys) {
+            if (action2 !== action) { continue; }
+            return {modifiers, key};
+        }
+        return null;
+    }
+
+    async _setAction(value) {
+        const targets = [{
+            action: 'set',
+            path: `${this._basePath}.action`,
+            value
+        }];
+
+        this._data.action = value;
+
+        const scopes = this._data.scopes;
+        const validScopes = this._getValidScopesForAction(value);
+        if (validScopes !== null) {
+            let changed = false;
+            for (let i = 0, ii = scopes.length; i < ii; ++i) {
+                if (!validScopes.has(scopes[i])) {
+                    scopes.splice(i, 1);
+                    --i;
+                    --ii;
+                    changed = true;
+                }
+            }
+            if (changed) {
+                if (scopes.length === 0) {
+                    scopes.push(...validScopes);
+                }
+                targets.push({
+                    action: 'set',
+                    path: `${this._basePath}.scopes`,
+                    value: scopes
+                });
+                this._updateCheckboxStates();
+            }
+        }
+
+        await this._modifyProfileSettings(targets);
+
+        this._updateCheckboxVisibility();
+    }
+
+    _updateCheckboxStates() {
+        const scopes = this._data.scopes;
+        for (const scopeCheckbox of this._scopeCheckboxes) {
+            scopeCheckbox.checked = scopes.includes(scopeCheckbox.dataset.scope);
+        }
+    }
+
+    _updateCheckboxVisibility() {
+        const validScopes = this._getValidScopesForAction(this._data.action);
+        for (const node of this._scopeCheckboxContainers) {
+            node.hidden = !(validScopes === null || validScopes.has(node.dataset.scope));
+        }
+    }
+
+    _getValidScopesForAction(action) {
+        const optionNode = this._actionSelect.querySelector(`option[value="${action}"]`);
+        const scopesString = (optionNode !== null ? optionNode.dataset.scopes : void 0);
+        return (typeof scopesString === 'string' ? new Set(scopesString.split(' ')) : null);
+    }
+}