зеркало из https://github.com/mozilla/gecko-dev.git
112 строки
3.8 KiB
JavaScript
112 строки
3.8 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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this.EXPORTED_SYMBOLS = ["ShortcutUtils"];
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const Cu = Components.utils;
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Cu.import("resource://gre/modules/Services.jsm");
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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XPCOMUtils.defineLazyGetter(this, "PlatformKeys", function() {
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return Services.strings.createBundle(
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"chrome://global-platform/locale/platformKeys.properties");
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});
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XPCOMUtils.defineLazyGetter(this, "Keys", function() {
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return Services.strings.createBundle(
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"chrome://global/locale/keys.properties");
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});
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var ShortcutUtils = {
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/**
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* Prettifies the modifier keys for an element.
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*
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* @param Node aElemKey
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* The key element to get the modifiers from.
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* @param boolean aNoCloverLeaf
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* Pass true to use a descriptive string instead of the cloverleaf symbol. (OS X only)
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* @return string
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* A prettified and properly separated modifier keys string.
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*/
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prettifyShortcut: function(aElemKey, aNoCloverLeaf) {
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let elemString = "";
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let elemMod = aElemKey.getAttribute("modifiers");
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let haveCloverLeaf = false;
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if (elemMod.match("accel")) {
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if (Services.appinfo.OS == "Darwin") {
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// XXX bug 779642 Use "Cmd-" literal vs. cloverleaf meta-key until
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// Orion adds variable height lines.
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if (aNoCloverLeaf) {
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elemString += "Cmd-";
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} else {
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haveCloverLeaf = true;
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}
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} else {
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elemString += PlatformKeys.GetStringFromName("VK_CONTROL") +
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PlatformKeys.GetStringFromName("MODIFIER_SEPARATOR");
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}
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}
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if (elemMod.match("access")) {
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if (Services.appinfo.OS == "Darwin") {
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elemString += PlatformKeys.GetStringFromName("VK_CONTROL") +
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PlatformKeys.GetStringFromName("MODIFIER_SEPARATOR");
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} else {
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elemString += PlatformKeys.GetStringFromName("VK_ALT") +
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PlatformKeys.GetStringFromName("MODIFIER_SEPARATOR");
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}
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}
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if (elemMod.match("os")) {
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elemString += PlatformKeys.GetStringFromName("VK_WIN") +
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PlatformKeys.GetStringFromName("MODIFIER_SEPARATOR");
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}
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if (elemMod.match("shift")) {
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elemString += PlatformKeys.GetStringFromName("VK_SHIFT") +
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PlatformKeys.GetStringFromName("MODIFIER_SEPARATOR");
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}
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if (elemMod.match("alt")) {
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elemString += PlatformKeys.GetStringFromName("VK_ALT") +
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PlatformKeys.GetStringFromName("MODIFIER_SEPARATOR");
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}
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if (elemMod.match("ctrl") || elemMod.match("control")) {
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elemString += PlatformKeys.GetStringFromName("VK_CONTROL") +
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PlatformKeys.GetStringFromName("MODIFIER_SEPARATOR");
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}
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if (elemMod.match("meta")) {
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elemString += PlatformKeys.GetStringFromName("VK_META") +
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PlatformKeys.GetStringFromName("MODIFIER_SEPARATOR");
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}
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if (haveCloverLeaf) {
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elemString += PlatformKeys.GetStringFromName("VK_META") +
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PlatformKeys.GetStringFromName("MODIFIER_SEPARATOR");
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}
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let key;
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let keyCode = aElemKey.getAttribute("keycode");
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if (keyCode) {
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try {
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// Some keys might not exist in the locale file, which will throw:
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key = Keys.GetStringFromName(keyCode.toUpperCase());
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} catch (ex) {
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Cu.reportError("Error finding " + keyCode + ": " + ex);
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key = keyCode.replace(/^VK_/, '');
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}
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} else {
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key = aElemKey.getAttribute("key");
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key = key.toUpperCase();
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}
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return elemString + key;
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},
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findShortcut: function(aElemCommand) {
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let document = aElemCommand.ownerDocument;
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return document.querySelector("key[command=\"" + aElemCommand.getAttribute("id") + "\"]");
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}
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};
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Object.freeze(ShortcutUtils);
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