зеркало из https://github.com/mozilla/gecko-dev.git
112 строки
4.7 KiB
JavaScript
112 строки
4.7 KiB
JavaScript
// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
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/* 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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// update menu items that rely on focus or on the current selection
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function goUpdateGlobalEditMenuItems(force) {
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// Don't bother updating the edit commands if they aren't visible in any way
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// (i.e. the Edit menu isn't open, nor is the context menu open, nor have the
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// cut, copy, and paste buttons been added to the toolbars) for performance.
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// This only works in applications/on platforms that set the gEditUIVisible
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// flag, so we check to see if that flag is defined before using it.
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if (!force && (typeof gEditUIVisible != "undefined" && !gEditUIVisible)) {
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return;
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}
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goUpdateCommand("cmd_undo");
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goUpdateCommand("cmd_redo");
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goUpdateCommand("cmd_cut");
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goUpdateCommand("cmd_copy");
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goUpdateCommand("cmd_paste");
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goUpdateCommand("cmd_selectAll");
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goUpdateCommand("cmd_delete");
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goUpdateCommand("cmd_switchTextDirection");
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}
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// update menu items that relate to undo/redo
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function goUpdateUndoEditMenuItems() {
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goUpdateCommand("cmd_undo");
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goUpdateCommand("cmd_redo");
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}
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// update menu items that depend on clipboard contents
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function goUpdatePasteMenuItems() {
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goUpdateCommand("cmd_paste");
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}
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// Inject the commandset here instead of relying on preprocessor to share this across documents.
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window.addEventListener(
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"DOMContentLoaded",
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() => {
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let container =
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document.querySelector("commandset") || document.documentElement;
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container.appendChild(
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MozXULElement.parseXULToFragment(`
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<commandset id="editMenuCommands">
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<commandset id="editMenuCommandSetAll" commandupdater="true" events="focus,select"
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oncommandupdate="goUpdateGlobalEditMenuItems()"/>
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<commandset id="editMenuCommandSetUndo" commandupdater="true" events="undo"
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oncommandupdate="goUpdateUndoEditMenuItems()"/>
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<commandset id="editMenuCommandSetPaste" commandupdater="true" events="clipboard"
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oncommandupdate="goUpdatePasteMenuItems()"/>
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<command id="cmd_undo" oncommand="goDoCommand('cmd_undo')"/>
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<command id="cmd_redo" oncommand="goDoCommand('cmd_redo')"/>
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<command id="cmd_cut" oncommand="goDoCommand('cmd_cut')"/>
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<command id="cmd_copy" oncommand="goDoCommand('cmd_copy')"/>
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<command id="cmd_paste" oncommand="goDoCommand('cmd_paste')"/>
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<command id="cmd_delete" oncommand="goDoCommand('cmd_delete')"/>
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<command id="cmd_selectAll" oncommand="goDoCommand('cmd_selectAll')"/>
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<command id="cmd_switchTextDirection" oncommand="goDoCommand('cmd_switchTextDirection');"/>
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</commandset>
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`)
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);
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},
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{ once: true }
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);
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// Support context menus on html textareas in the parent process:
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window.addEventListener("contextmenu", e => {
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const HTML_NS = "http://www.w3.org/1999/xhtml";
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// Note that there's not a risk of e.target being XBL anonymous content for <textbox> (which manages
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// its own context menu), because e.target will be the XBL binding parent in that case.
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let needsContextMenu =
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e.target.ownerDocument == document &&
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!e.defaultPrevented &&
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e.target.parentNode.nodeName != "moz-input-box" &&
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((["textarea", "input"].includes(e.target.localName) &&
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e.target.namespaceURI == HTML_NS) ||
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e.target.closest("textbox[is='search-textbox']"));
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if (!needsContextMenu) {
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return;
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}
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let popup = document.getElementById("textbox-contextmenu");
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if (!popup) {
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MozXULElement.insertFTLIfNeeded("toolkit/main-window/editmenu.ftl");
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document.documentElement.appendChild(
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MozXULElement.parseXULToFragment(`
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<menupopup id="textbox-contextmenu" class="textbox-contextmenu">
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<menuitem data-l10n-id="editmenu-undo" command="cmd_undo"></menuitem>
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<menuseparator></menuseparator>
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<menuitem data-l10n-id="editmenu-cut" command="cmd_cut"></menuitem>
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<menuitem data-l10n-id="editmenu-copy" command="cmd_copy"></menuitem>
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<menuitem data-l10n-id="editmenu-paste" command="cmd_paste"></menuitem>
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<menuitem data-l10n-id="editmenu-delete" command="cmd_delete"></menuitem>
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<menuseparator></menuseparator>
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<menuitem data-l10n-id="editmenu-select-all" command="cmd_selectAll"></menuitem>
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</menupopup>
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`)
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);
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popup = document.documentElement.lastElementChild;
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}
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goUpdateGlobalEditMenuItems(true);
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popup.openPopupAtScreen(e.screenX, e.screenY, true);
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// Don't show any other context menu at the same time. There can be a
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// context menu from an ancestor too but we only want to show this one.
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e.preventDefault();
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});
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