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101 lines
3.3 KiB
JavaScript
101 lines
3.3 KiB
JavaScript
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- /
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/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
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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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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dump("###################################### BrowserElementCopyPaste.js loaded\n");
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let { classes: Cc, interfaces: Ci, results: Cr, utils: Cu } = Components;
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let CopyPasteAssistent = {
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COMMAND_MAP: {
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'cut': 'cmd_cut',
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'copy': 'cmd_copyAndCollapseToEnd',
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'paste': 'cmd_paste',
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'selectall': 'cmd_selectAll'
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},
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init: function() {
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addEventListener('mozcaretstatechanged',
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this._caretStateChangedHandler.bind(this),
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/* useCapture = */ true,
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/* wantsUntrusted = */ false);
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addMessageListener('browser-element-api:call', this._browserAPIHandler.bind(this));
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},
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_browserAPIHandler: function(e) {
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switch (e.data.msg_name) {
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case 'copypaste-do-command':
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if (this._isCommandEnabled(e.data.command)) {
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docShell.doCommand(COMMAND_MAP[e.data.command]);
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}
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break;
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}
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},
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_isCommandEnabled: function(cmd) {
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let command = this.COMMAND_MAP[cmd];
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if (!command) {
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return false;
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}
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return docShell.isCommandEnabled(command);
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},
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_caretStateChangedHandler: function(e) {
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e.stopPropagation();
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let boundingClientRect = e.boundingClientRect;
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let canPaste = this._isCommandEnabled("paste");
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let zoomFactor = content.innerWidth == 0 ? 1 : content.screen.width / content.innerWidth;
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let detail = {
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rect: {
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width: boundingClientRect ? boundingClientRect.width : 0,
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height: boundingClientRect ? boundingClientRect.height : 0,
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top: boundingClientRect ? boundingClientRect.top : 0,
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bottom: boundingClientRect ? boundingClientRect.bottom : 0,
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left: boundingClientRect ? boundingClientRect.left : 0,
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right: boundingClientRect ? boundingClientRect.right : 0,
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},
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commands: {
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canSelectAll: this._isCommandEnabled("selectall"),
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canCut: this._isCommandEnabled("cut"),
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canCopy: this._isCommandEnabled("copy"),
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canPaste: this._isCommandEnabled("paste"),
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},
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zoomFactor: zoomFactor,
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reason: e.reason,
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collapsed: e.collapsed,
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caretVisible: e.caretVisible,
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selectionVisible: e.selectionVisible,
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selectionEditable: e.selectionEditable
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};
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// Get correct geometry information if we have nested iframe.
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let currentWindow = e.target.defaultView;
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while (currentWindow.realFrameElement) {
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let currentRect = currentWindow.realFrameElement.getBoundingClientRect();
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detail.rect.top += currentRect.top;
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detail.rect.bottom += currentRect.top;
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detail.rect.left += currentRect.left;
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detail.rect.right += currentRect.left;
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currentWindow = currentWindow.realFrameElement.ownerDocument.defaultView;
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let targetDocShell = currentWindow
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.QueryInterface(Ci.nsIInterfaceRequestor)
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.getInterface(Ci.nsIWebNavigation);
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if(targetDocShell.isBrowserOrApp) {
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break;
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}
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}
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sendAsyncMsg('caretstatechanged', detail);
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},
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};
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CopyPasteAssistent.init();
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