diff options
author | toasted-nutbread <toasted-nutbread@users.noreply.github.com> | 2021-02-13 22:52:28 -0500 |
---|---|---|
committer | GitHub <noreply@github.com> | 2021-02-13 22:52:28 -0500 |
commit | 6a271e067fa917614f4c81f473533e24c6d04404 (patch) | |
tree | 0d81658b1c03aecfbba133425aefc0ea7612338c /ext/mixed/js/hotkey-handler.js | |
parent | deed5027cd18bcdb9cb9d13cb7831be0ec5384e8 (diff) |
Move mixed/js (#1383)
* Move mixed/js/core.js to js/core.js
* Move mixed/js/yomichan.js to js/yomichan.js
* Move mixed/js/timer.js to js/debug/timer.js
* Move mixed/js/hotkey-handler.js to js/input/hotkey-handler.js
* Move mixed/js/hotkey-help-controller.js to js/input/hotkey-help-controller.js
* Move mixed/js/hotkey-util.js to js/input/hotkey-util.js
* Move mixed/js/audio-system.js to js/input/audio-system.js
* Move mixed/js/media-loader.js to js/input/media-loader.js
* Move mixed/js/text-to-speech-audio.js to js/input/text-to-speech-audio.js
* Move mixed/js/comm.js to js/comm/cross-frame-api.js
* Move mixed/js/api.js to js/comm/api.js
* Move mixed/js/frame-client.js to js/comm/frame-client.js
* Move mixed/js/frame-endpoint.js to js/comm/frame-endpoint.js
* Move mixed/js/display.js to js/display/display.js
* Move mixed/js/display-audio.js to js/display/display-audio.js
* Move mixed/js/display-generator.js to js/display/display-generator.js
* Move mixed/js/display-history.js to js/display/display-history.js
* Move mixed/js/display-notification.js to js/display/display-notification.js
* Move mixed/js/display-profile-selection.js to js/display/display-profile-selection.js
* Move mixed/js/japanese.js to js/language/japanese-util.js
* Move mixed/js/dictionary-data-util.js to js/language/dictionary-data-util.js
* Move mixed/js/document-focus-controller.js to js/dom/document-focus-controller.js
* Move mixed/js/document-util.js to js/dom/document-util.js
* Move mixed/js/dom-data-binder.js to js/dom/dom-data-binder.js
* Move mixed/js/html-template-collection.js to js/dom/html-template-collection.js
* Move mixed/js/panel-element.js to js/dom/panel-element.js
* Move mixed/js/popup-menu.js to js/dom/popup-menu.js
* Move mixed/js/selector-observer.js to js/dom/selector-observer.js
* Move mixed/js/scroll.js to js/dom/window-scroll.js
* Move mixed/js/text-scanner.js to js/language/text-scanner.js
* Move mixed/js/cache-map.js to js/general/cache-map.js
* Move mixed/js/object-property-accessor.js to js/general/object-property-accessor.js
* Move mixed/js/task-accumulator.js to js/general/task-accumulator.js
* Move mixed/js/environment.js to js/background/environment.js
* Move mixed/js/dynamic-loader.js to js/scripting/dynamic-loader.js
* Move mixed/js/dynamic-loader-sentinel.js to js/scripting/dynamic-loader-sentinel.js
Diffstat (limited to 'ext/mixed/js/hotkey-handler.js')
-rw-r--r-- | ext/mixed/js/hotkey-handler.js | 267 |
1 files changed, 0 insertions, 267 deletions
diff --git a/ext/mixed/js/hotkey-handler.js b/ext/mixed/js/hotkey-handler.js deleted file mode 100644 index 423410b7..00000000 --- a/ext/mixed/js/hotkey-handler.js +++ /dev/null @@ -1,267 +0,0 @@ -/* - * 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 - * DocumentUtil - * api - */ - -/** - * Class which handles hotkey events and actions. - */ -class HotkeyHandler extends EventDispatcher { - /** - * Creates a new instance of the class. - */ - constructor() { - super(); - this._actions = new Map(); - this._hotkeys = new Map(); - this._hotkeyRegistrations = new Map(); - this._eventListeners = new EventListenerCollection(); - this._isPrepared = false; - this._hasEventListeners = false; - this._forwardFrameId = null; - } - - /** - * Gets the frame ID used for forwarding hotkeys. - */ - get forwardFrameId() { - return this._forwardFrameId; - } - - /** - * Sets the frame ID used for forwarding hotkeys. - */ - set forwardFrameId(value) { - this._forwardFrameId = value; - this._updateHotkeyRegistrations(); - } - - /** - * Begins listening to key press events in order to detect hotkeys. - */ - prepare() { - this._isPrepared = true; - this._updateEventHandlers(); - api.crossFrame.registerHandlers([ - ['hotkeyHandler.forwardHotkey', {async: false, handler: this._onMessageForwardHotkey.bind(this)}] - ]); - } - - /** - * Registers a set of actions that this hotkey handler supports. - * @param actions An array of `[name, handler]` entries, where `name` is a string and `handler` is a function. - */ - registerActions(actions) { - for (const [name, handler] of actions) { - this._actions.set(name, handler); - } - } - - /** - * Registers a set of hotkeys for a given scope. - * @param scope The scope that the hotkey definitions must be for in order to be activated. - * @param hotkeys An array of hotkey definitions of the format `{action, key, modifiers, scopes, enabled}`. - * * `action` - a string indicating which action to perform. - * * `key` - a keyboard key code indicating which key needs to be pressed. - * * `modifiers` - an array of keyboard modifiers which also need to be pressed. Supports: `'alt', 'ctrl', 'shift', 'meta'`. - * * `scopes` - an array of scopes for which the hotkey is valid. If this array does not contain `this.scope`, the hotkey will not be registered. - * * `enabled` - a boolean indicating whether the hotkey is currently enabled. - */ - registerHotkeys(scope, hotkeys) { - let registrations = this._hotkeyRegistrations.get(scope); - if (typeof registrations === 'undefined') { - registrations = []; - this._hotkeyRegistrations.set(scope, registrations); - } - registrations.push(...hotkeys); - this._updateHotkeyRegistrations(); - } - - /** - * Removes all registered hotkeys for a given scope. - */ - clearHotkeys(scope) { - const registrations = this._hotkeyRegistrations.get(scope); - if (typeof registrations !== 'undefined') { - registrations.length = 0; - } - this._updateHotkeyRegistrations(); - } - - /** - * Assigns a set of hotkeys for a given scope. This is an optimized shorthand for calling - * `clearHotkeys`, then calling `registerHotkeys`. - * @see registerHotkeys for argument information. - */ - setHotkeys(scope, hotkeys) { - let registrations = this._hotkeyRegistrations.get(scope); - if (typeof registrations === 'undefined') { - registrations = []; - this._hotkeyRegistrations.set(scope, registrations); - } else { - registrations.length = 0; - } - registrations.push(...hotkeys); - this._updateHotkeyRegistrations(); - } - - /** - * Adds a single event listener to a specific event. - * @param eventName The string representing the event's name. - * @param callback The event listener callback to add. - */ - on(eventName, callback) { - const result = super.on(eventName, callback); - this._updateHasEventListeners(); - this._updateEventHandlers(); - return result; - } - - /** - * Removes a single event listener from a specific event. - * @param eventName The string representing the event's name. - * @param callback The event listener callback to add. - * @returns `true` if the callback was removed, `false` otherwise. - */ - off(eventName, callback) { - const result = super.off(eventName, callback); - this._updateHasEventListeners(); - this._updateEventHandlers(); - return result; - } - - /** - * Attempts to simulate an action for a given combination of key and modifiers. - * @param key A keyboard key code indicating which key needs to be pressed. - * @param modifiers An array of keyboard modifiers which also need to be pressed. Supports: `'alt', 'ctrl', 'shift', 'meta'`. - * @returns `true` if an action was performed, `false` otherwise. - */ - simulate(key, modifiers) { - const hotkeyInfo = this._hotkeys.get(key); - return ( - typeof hotkeyInfo !== 'undefined' && - this._invokeHandlers(key, modifiers, hotkeyInfo, false) - ); - } - - // Message handlers - - _onMessageForwardHotkey({key, modifiers}) { - return this.simulate(key, modifiers); - } - - // Private - - _onKeyDown(e) { - const key = e.code; - const hotkeyInfo = this._hotkeys.get(key); - if (typeof hotkeyInfo !== 'undefined') { - const eventModifiers = DocumentUtil.getActiveModifiers(e); - const canForward = (this._forwardFrameId !== null); - if (this._invokeHandlers(key, eventModifiers, hotkeyInfo, canForward)) { - e.preventDefault(); - return; - } - } - this.trigger('keydownNonHotkey', e); - } - - _invokeHandlers(key, modifiers, hotkeyInfo, canForward) { - for (const {modifiers: handlerModifiers, action} of hotkeyInfo.handlers) { - if (!this._areSame(handlerModifiers, modifiers)) { continue; } - - const actionHandler = this._actions.get(action); - if (typeof actionHandler !== 'undefined') { - const result = actionHandler(); - if (result !== false) { - return true; - } - } - } - - if (canForward && hotkeyInfo.forward) { - this._forwardHotkey(key, modifiers); - return true; - } - - return false; - } - - _areSame(set, array) { - if (set.size !== array.length) { return false; } - for (const value of array) { - if (!set.has(value)) { - return false; - } - } - return true; - } - - _updateHotkeyRegistrations() { - if (this._hotkeys.size === 0 && this._hotkeyRegistrations.size === 0) { return; } - - const canForward = (this._forwardFrameId !== null); - this._hotkeys.clear(); - for (const [scope, registrations] of this._hotkeyRegistrations.entries()) { - for (const {action, key, modifiers, scopes, enabled} of registrations) { - if (!(enabled && key !== null && action !== '')) { continue; } - - const correctScope = scopes.includes(scope); - if (!correctScope && !canForward) { continue; } - - let hotkeyInfo = this._hotkeys.get(key); - if (typeof hotkeyInfo === 'undefined') { - hotkeyInfo = {handlers: [], forward: false}; - this._hotkeys.set(key, hotkeyInfo); - } - - if (correctScope) { - hotkeyInfo.handlers.push({modifiers: new Set(modifiers), action}); - } else { - hotkeyInfo.forward = true; - } - } - } - this._updateEventHandlers(); - } - - _updateHasEventListeners() { - this._hasEventListeners = this.hasListeners('keydownNonHotkey'); - } - - _updateEventHandlers() { - if (this._isPrepared && (this._hotkeys.size > 0 || this._hasEventListeners)) { - if (this._eventListeners.size !== 0) { return; } - this._eventListeners.addEventListener(document, 'keydown', this._onKeyDown.bind(this), false); - } else { - this._eventListeners.removeAllEventListeners(); - } - } - - async _forwardHotkey(key, modifiers) { - const frameId = this._forwardFrameId; - if (frameId === null) { throw new Error('No forwarding target'); } - try { - await api.crossFrame.invoke(frameId, 'hotkeyHandler.forwardHotkey', {key, modifiers}); - } catch (e) { - // NOP - } - } -} |