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850 lines
26 KiB
JavaScript
850 lines
26 KiB
JavaScript
/* vim:set ts=2 sw=2 sts=2 et:
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Scratchpad.
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*
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* The Initial Developer of the Original Code is
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* The Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2011
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Rob Campbell <robcee@mozilla.com> (original author)
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* Erik Vold <erikvvold@gmail.com>
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* David Dahl <ddahl@mozilla.com>
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* Mihai Sucan <mihai.sucan@gmail.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK *****/
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/*
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* Original version history can be found here:
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* https://github.com/mozilla/workspace
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*
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* Copied and relicensed from the Public Domain.
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* See bug 653934 for details.
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* https://bugzilla.mozilla.org/show_bug.cgi?id=653934
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*/
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"use strict";
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const Cc = Components.classes;
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const Ci = Components.interfaces;
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const Cu = Components.utils;
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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Cu.import("resource://gre/modules/Services.jsm");
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Cu.import("resource://gre/modules/NetUtil.jsm");
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Cu.import("resource:///modules/PropertyPanel.jsm");
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Cu.import("resource:///modules/source-editor.jsm");
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Cu.import("resource:///modules/devtools/scratchpad-manager.jsm");
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const SCRATCHPAD_CONTEXT_CONTENT = 1;
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const SCRATCHPAD_CONTEXT_BROWSER = 2;
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const SCRATCHPAD_L10N = "chrome://browser/locale/devtools/scratchpad.properties";
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const DEVTOOLS_CHROME_ENABLED = "devtools.chrome.enabled";
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/**
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* The scratchpad object handles the Scratchpad window functionality.
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*/
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var Scratchpad = {
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/**
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* The script execution context. This tells Scratchpad in which context the
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* script shall execute.
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*
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* Possible values:
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* - SCRATCHPAD_CONTEXT_CONTENT to execute code in the context of the current
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* tab content window object.
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* - SCRATCHPAD_CONTEXT_BROWSER to execute code in the context of the
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* currently active chrome window object.
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*/
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executionContext: SCRATCHPAD_CONTEXT_CONTENT,
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/**
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* Retrieve the xul:notificationbox DOM element. It notifies the user when
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* the current code execution context is SCRATCHPAD_CONTEXT_BROWSER.
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*/
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get notificationBox() document.getElementById("scratchpad-notificationbox"),
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/**
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* Get the selected text from the editor.
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*
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* @return string
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* The selected text.
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*/
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get selectedText() this.editor.getSelectedText(),
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/**
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* Get the editor content, in the given range. If no range is given you get
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* the entire editor content.
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*
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* @param number [aStart=0]
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* Optional, start from the given offset.
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* @param number [aEnd=content char count]
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* Optional, end offset for the text you want. If this parameter is not
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* given, then the text returned goes until the end of the editor
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* content.
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* @return string
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* The text in the given range.
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*/
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getText: function SP_getText(aStart, aEnd)
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{
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return this.editor.getText(aStart, aEnd);
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},
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/**
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* Replace text in the source editor with the given text, in the given range.
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*
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* @param string aText
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* The text you want to put into the editor.
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* @param number [aStart=0]
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* Optional, the start offset, zero based, from where you want to start
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* replacing text in the editor.
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* @param number [aEnd=char count]
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* Optional, the end offset, zero based, where you want to stop
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* replacing text in the editor.
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*/
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setText: function SP_setText(aText, aStart, aEnd)
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{
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this.editor.setText(aText, aStart, aEnd);
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},
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/**
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* Set the filename in the scratchpad UI and object
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*
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* @param string aFilename
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* The new filename
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*/
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setFilename: function SP_setFilename(aFilename)
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{
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document.title = this.filename = aFilename;
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},
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/**
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* Get the current state of the scratchpad. Called by the
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* Scratchpad Manager for session storing.
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*
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* @return object
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* An object with 3 properties: filename, text, and
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* executionContext.
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*/
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getState: function SP_getState()
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{
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return {
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filename: this.filename,
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text: this.getText(),
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executionContext: this.executionContext
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};
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},
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/**
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* Set the filename and execution context using the given state. Called
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* when scratchpad is being restored from a previous session.
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*
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* @param object aState
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* An object with filename and executionContext properties.
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*/
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setState: function SP_getState(aState)
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{
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if (aState.filename) {
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this.setFilename(aState.filename);
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}
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if (aState.executionContext == SCRATCHPAD_CONTEXT_BROWSER) {
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this.setBrowserContext();
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}
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else {
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this.setContentContext();
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}
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},
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/**
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* Get the most recent chrome window of type navigator:browser.
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*/
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get browserWindow() Services.wm.getMostRecentWindow("navigator:browser"),
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/**
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* Reference to the last chrome window of type navigator:browser. We use this
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* to check if the chrome window changed since the last code evaluation.
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*/
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_previousWindow: null,
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/**
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* Get the gBrowser object of the most recent browser window.
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*/
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get gBrowser()
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{
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let recentWin = this.browserWindow;
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return recentWin ? recentWin.gBrowser : null;
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},
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/**
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* Cached Cu.Sandbox object for the active tab content window object.
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*/
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_contentSandbox: null,
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/**
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* Get the Cu.Sandbox object for the active tab content window object. Note
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* that the returned object is cached for later reuse. The cached object is
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* kept only for the current location in the current tab of the current
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* browser window and it is reset for each context switch,
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* navigator:browser window switch, tab switch or navigation.
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*/
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get contentSandbox()
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{
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if (!this.browserWindow) {
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Cu.reportError(this.strings.
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GetStringFromName("browserWindow.unavailable"));
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return;
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}
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if (!this._contentSandbox ||
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this.browserWindow != this._previousBrowserWindow ||
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this._previousBrowser != this.gBrowser.selectedBrowser ||
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this._previousLocation != this.gBrowser.contentWindow.location.href) {
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let contentWindow = this.gBrowser.selectedBrowser.contentWindow;
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this._contentSandbox = new Cu.Sandbox(contentWindow,
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{ sandboxPrototype: contentWindow, wantXrays: false,
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sandboxName: 'scratchpad-content'});
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this._previousBrowserWindow = this.browserWindow;
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this._previousBrowser = this.gBrowser.selectedBrowser;
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this._previousLocation = contentWindow.location.href;
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}
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return this._contentSandbox;
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},
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/**
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* Cached Cu.Sandbox object for the most recently active navigator:browser
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* chrome window object.
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*/
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_chromeSandbox: null,
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/**
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* Get the Cu.Sandbox object for the most recently active navigator:browser
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* chrome window object. Note that the returned object is cached for later
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* reuse. The cached object is kept only for the current browser window and it
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* is reset for each context switch or navigator:browser window switch.
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*/
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get chromeSandbox()
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{
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if (!this.browserWindow) {
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Cu.reportError(this.strings.
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GetStringFromName("browserWindow.unavailable"));
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return;
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}
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if (!this._chromeSandbox ||
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this.browserWindow != this._previousBrowserWindow) {
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this._chromeSandbox = new Cu.Sandbox(this.browserWindow,
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{ sandboxPrototype: this.browserWindow, wantXrays: false,
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sandboxName: 'scratchpad-chrome'});
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this._previousBrowserWindow = this.browserWindow;
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}
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return this._chromeSandbox;
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},
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/**
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* Drop the editor selection.
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*/
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deselect: function SP_deselect()
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{
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this.editor.dropSelection();
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},
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/**
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* Select a specific range in the Scratchpad editor.
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*
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* @param number aStart
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* Selection range start.
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* @param number aEnd
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* Selection range end.
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*/
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selectRange: function SP_selectRange(aStart, aEnd)
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{
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this.editor.setSelection(aStart, aEnd);
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},
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/**
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* Get the current selection range.
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*
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* @return object
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* An object with two properties, start and end, that give the
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* selection range (zero based offsets).
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*/
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getSelectionRange: function SP_getSelection()
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{
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return this.editor.getSelection();
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},
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/**
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* Evaluate a string in the active tab content window.
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*
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* @param string aString
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* The script you want evaluated.
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* @return mixed
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* The script evaluation result.
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*/
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evalInContentSandbox: function SP_evalInContentSandbox(aString)
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{
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let error, result;
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try {
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result = Cu.evalInSandbox(aString, this.contentSandbox, "1.8",
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"Scratchpad", 1);
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}
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catch (ex) {
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this.openWebConsole();
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let contentWindow = this.gBrowser.selectedBrowser.contentWindow;
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let scriptError = Cc["@mozilla.org/scripterror;1"].
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createInstance(Ci.nsIScriptError2);
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scriptError.initWithWindowID(ex.message + "\n" + ex.stack, ex.fileName,
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"", ex.lineNumber, 0, scriptError.errorFlag,
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"content javascript",
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this.getInnerWindowId(contentWindow));
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Services.console.logMessage(scriptError);
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error = true;
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}
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return [error, result];
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},
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/**
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* Evaluate a string in the most recent navigator:browser chrome window.
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*
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* @param string aString
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* The script you want evaluated.
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* @return mixed
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* The script evaluation result.
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*/
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evalInChromeSandbox: function SP_evalInChromeSandbox(aString)
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{
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let error, result;
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try {
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result = Cu.evalInSandbox(aString, this.chromeSandbox, "1.8",
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"Scratchpad", 1);
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}
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catch (ex) {
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Cu.reportError(ex);
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Cu.reportError(ex.stack);
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this.openErrorConsole();
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error = true;
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}
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return [error, result];
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},
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/**
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* Evaluate a string in the currently desired context, that is either the
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* chrome window or the tab content window object.
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*
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* @param string aString
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* The script you want to evaluate.
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* @return mixed
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* The script evaluation result.
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*/
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evalForContext: function SP_evaluateForContext(aString)
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{
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return this.executionContext == SCRATCHPAD_CONTEXT_CONTENT ?
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this.evalInContentSandbox(aString) :
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this.evalInChromeSandbox(aString);
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},
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/**
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* Execute the selected text (if any) or the entire editor content in the
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* current context.
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*/
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run: function SP_run()
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{
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let selection = this.selectedText || this.getText();
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let [error, result] = this.evalForContext(selection);
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this.deselect();
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return [selection, error, result];
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},
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/**
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* Execute the selected text (if any) or the entire editor content in the
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* current context. The resulting object is opened up in the Property Panel
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* for inspection.
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*/
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inspect: function SP_inspect()
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{
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let [selection, error, result] = this.run();
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if (!error) {
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this.openPropertyPanel(selection, result);
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}
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},
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/**
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* Execute the selected text (if any) or the entire editor content in the
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* current context. The evaluation result is inserted into the editor after
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* the selected text, or at the end of the editor content if there is no
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* selected text.
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*/
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display: function SP_display()
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{
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let selection = this.getSelectionRange();
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let insertionPoint = selection.start != selection.end ?
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selection.end : // after selected text
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this.editor.getCharCount(); // after text end
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let [selectedText, error, result] = this.run();
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if (error) {
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return;
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}
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let newComment = "/*\n" + result + "\n*/";
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this.setText(newComment, insertionPoint, insertionPoint);
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// Select the new comment.
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this.selectRange(insertionPoint, insertionPoint + newComment.length);
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},
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/**
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* Open the Property Panel to inspect the given object.
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*
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* @param string aEvalString
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* The string that was evaluated. This is re-used when the user updates
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* the properties list, by clicking the Update button.
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* @param object aOutputObject
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* The object to inspect, which is the aEvalString evaluation result.
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* @return object
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* The PropertyPanel object instance.
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*/
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openPropertyPanel: function SP_openPropertyPanel(aEvalString, aOutputObject)
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{
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let self = this;
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let propPanel;
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// The property panel has a button:
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// `Update`: reexecutes the string executed on the command line. The
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// result will be inspected by this panel.
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let buttons = [];
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// If there is a evalString passed to this function, then add a `Update`
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// button to the panel so that the evalString can be reexecuted to update
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// the content of the panel.
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if (aEvalString !== null) {
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buttons.push({
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label: this.strings.
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GetStringFromName("propertyPanel.updateButton.label"),
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accesskey: this.strings.
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GetStringFromName("propertyPanel.updateButton.accesskey"),
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oncommand: function () {
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let [error, result] = self.evalForContext(aEvalString);
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if (!error) {
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propPanel.treeView.data = result;
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}
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}
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});
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}
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let doc = this.browserWindow.document;
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let parent = doc.getElementById("mainPopupSet");
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let title = aOutputObject.toString();
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propPanel = new PropertyPanel(parent, doc, title, aOutputObject, buttons);
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let panel = propPanel.panel;
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panel.setAttribute("class", "scratchpad_propertyPanel");
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panel.openPopup(null, "after_pointer", 0, 0, false, false);
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panel.sizeTo(200, 400);
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return propPanel;
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},
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// Menu Operations
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/**
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* Open a new Scratchpad window.
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*/
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openScratchpad: function SP_openScratchpad()
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{
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ScratchpadManager.openScratchpad();
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},
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/**
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* Export the textbox content to a file.
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*
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* @param nsILocalFile aFile
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* The file where you want to save the textbox content.
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* @param boolean aNoConfirmation
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* If the file already exists, ask for confirmation?
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* @param boolean aSilentError
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* True if you do not want to display an error when file save fails,
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* false otherwise.
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* @param function aCallback
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* Optional function you want to call when file save completes. It will
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* get the following arguments:
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* 1) the nsresult status code for the export operation.
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*/
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exportToFile: function SP_exportToFile(aFile, aNoConfirmation, aSilentError,
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aCallback)
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{
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if (!aNoConfirmation && aFile.exists() &&
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!window.confirm(this.strings.
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GetStringFromName("export.fileOverwriteConfirmation"))) {
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return;
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}
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let fs = Cc["@mozilla.org/network/file-output-stream;1"].
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createInstance(Ci.nsIFileOutputStream);
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let modeFlags = 0x02 | 0x08 | 0x20;
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fs.init(aFile, modeFlags, 420 /* 0644 */, fs.DEFER_OPEN);
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let converter = Cc["@mozilla.org/intl/scriptableunicodeconverter"].
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createInstance(Ci.nsIScriptableUnicodeConverter);
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converter.charset = "UTF-8";
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let input = converter.convertToInputStream(this.getText());
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let self = this;
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NetUtil.asyncCopy(input, fs, function(aStatus) {
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if (!aSilentError && !Components.isSuccessCode(aStatus)) {
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window.alert(self.strings.GetStringFromName("saveFile.failed"));
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}
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if (aCallback) {
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aCallback.call(self, aStatus);
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}
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});
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},
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/**
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* Read the content of a file and put it into the textbox.
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*
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* @param nsILocalFile aFile
|
|
* The file you want to save the textbox content into.
|
|
* @param boolean aSilentError
|
|
* True if you do not want to display an error when file load fails,
|
|
* false otherwise.
|
|
* @param function aCallback
|
|
* Optional function you want to call when file load completes. It will
|
|
* get the following arguments:
|
|
* 1) the nsresult status code for the import operation.
|
|
* 2) the data that was read from the file, if any.
|
|
*/
|
|
importFromFile: function SP_importFromFile(aFile, aSilentError, aCallback)
|
|
{
|
|
// Prevent file type detection.
|
|
let channel = NetUtil.newChannel(aFile);
|
|
channel.contentType = "application/javascript";
|
|
|
|
let self = this;
|
|
NetUtil.asyncFetch(channel, function(aInputStream, aStatus) {
|
|
let content = null;
|
|
|
|
if (Components.isSuccessCode(aStatus)) {
|
|
content = NetUtil.readInputStreamToString(aInputStream,
|
|
aInputStream.available());
|
|
self.setText(content);
|
|
}
|
|
else if (!aSilentError) {
|
|
window.alert(self.strings.GetStringFromName("openFile.failed"));
|
|
}
|
|
|
|
if (aCallback) {
|
|
aCallback.call(self, aStatus, content);
|
|
}
|
|
});
|
|
},
|
|
|
|
/**
|
|
* Open a file to edit in the Scratchpad.
|
|
*/
|
|
openFile: function SP_openFile()
|
|
{
|
|
let fp = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
|
|
fp.init(window, this.strings.GetStringFromName("openFile.title"),
|
|
Ci.nsIFilePicker.modeOpen);
|
|
fp.defaultString = "";
|
|
if (fp.show() != Ci.nsIFilePicker.returnCancel) {
|
|
this.setFilename(fp.file.path);
|
|
this.importFromFile(fp.file);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Save the textbox content to the currently open file.
|
|
*/
|
|
saveFile: function SP_saveFile()
|
|
{
|
|
if (!this.filename) {
|
|
return this.saveFileAs();
|
|
}
|
|
|
|
let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsILocalFile);
|
|
file.initWithPath(this.filename);
|
|
this.exportToFile(file, true);
|
|
},
|
|
|
|
/**
|
|
* Save the textbox content to a new file.
|
|
*/
|
|
saveFileAs: function SP_saveFileAs()
|
|
{
|
|
let fp = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
|
|
fp.init(window, this.strings.GetStringFromName("saveFileAs"),
|
|
Ci.nsIFilePicker.modeSave);
|
|
fp.defaultString = "scratchpad.js";
|
|
if (fp.show() != Ci.nsIFilePicker.returnCancel) {
|
|
document.title = this.filename = fp.file.path;
|
|
this.exportToFile(fp.file, true);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Open the Error Console.
|
|
*/
|
|
openErrorConsole: function SP_openErrorConsole()
|
|
{
|
|
this.browserWindow.toJavaScriptConsole();
|
|
},
|
|
|
|
/**
|
|
* Open the Web Console.
|
|
*/
|
|
openWebConsole: function SP_openWebConsole()
|
|
{
|
|
if (!this.browserWindow.HUDConsoleUI.getOpenHUD()) {
|
|
this.browserWindow.HUDConsoleUI.toggleHUD();
|
|
}
|
|
this.browserWindow.focus();
|
|
},
|
|
|
|
/**
|
|
* Set the current execution context to be the active tab content window.
|
|
*/
|
|
setContentContext: function SP_setContentContext()
|
|
{
|
|
if (this.executionContext == SCRATCHPAD_CONTEXT_CONTENT) {
|
|
return;
|
|
}
|
|
|
|
let content = document.getElementById("sp-menu-content");
|
|
document.getElementById("sp-menu-browser").removeAttribute("checked");
|
|
content.setAttribute("checked", true);
|
|
this.executionContext = SCRATCHPAD_CONTEXT_CONTENT;
|
|
this.notificationBox.removeAllNotifications(false);
|
|
this.resetContext();
|
|
},
|
|
|
|
/**
|
|
* Set the current execution context to be the most recent chrome window.
|
|
*/
|
|
setBrowserContext: function SP_setBrowserContext()
|
|
{
|
|
if (this.executionContext == SCRATCHPAD_CONTEXT_BROWSER) {
|
|
return;
|
|
}
|
|
|
|
let browser = document.getElementById("sp-menu-browser");
|
|
document.getElementById("sp-menu-content").removeAttribute("checked");
|
|
browser.setAttribute("checked", true);
|
|
this.executionContext = SCRATCHPAD_CONTEXT_BROWSER;
|
|
this.notificationBox.appendNotification(
|
|
this.strings.GetStringFromName("browserContext.notification"),
|
|
SCRATCHPAD_CONTEXT_BROWSER,
|
|
null,
|
|
this.notificationBox.PRIORITY_WARNING_HIGH,
|
|
null);
|
|
this.resetContext();
|
|
},
|
|
|
|
/**
|
|
* Reset the cached Cu.Sandbox object for the current context.
|
|
*/
|
|
resetContext: function SP_resetContext()
|
|
{
|
|
this._chromeSandbox = null;
|
|
this._contentSandbox = null;
|
|
this._previousWindow = null;
|
|
this._previousBrowser = null;
|
|
this._previousLocation = null;
|
|
},
|
|
|
|
/**
|
|
* Gets the ID of the inner window of the given DOM window object.
|
|
*
|
|
* @param nsIDOMWindow aWindow
|
|
* @return integer
|
|
* the inner window ID
|
|
*/
|
|
getInnerWindowId: function SP_getInnerWindowId(aWindow)
|
|
{
|
|
return aWindow.QueryInterface(Ci.nsIInterfaceRequestor).
|
|
getInterface(Ci.nsIDOMWindowUtils).currentInnerWindowID;
|
|
},
|
|
|
|
/**
|
|
* The Scratchpad window DOMContentLoaded event handler. This method
|
|
* initializes the Scratchpad window and source editor.
|
|
*
|
|
* @param nsIDOMEvent aEvent
|
|
*/
|
|
onLoad: function SP_onLoad(aEvent)
|
|
{
|
|
if (aEvent.target != document) {
|
|
return;
|
|
}
|
|
|
|
let chrome = Services.prefs.getBoolPref(DEVTOOLS_CHROME_ENABLED);
|
|
if (chrome) {
|
|
let environmentMenu = document.getElementById("sp-environment-menu");
|
|
let errorConsoleCommand = document.getElementById("sp-cmd-errorConsole");
|
|
let chromeContextCommand = document.getElementById("sp-cmd-browserContext");
|
|
environmentMenu.removeAttribute("hidden");
|
|
chromeContextCommand.removeAttribute("disabled");
|
|
errorConsoleCommand.removeAttribute("disabled");
|
|
}
|
|
|
|
let initialText = this.strings.GetStringFromName("scratchpadIntro");
|
|
if ("arguments" in window &&
|
|
window.arguments[0] instanceof Ci.nsIDialogParamBlock) {
|
|
let state = JSON.parse(window.arguments[0].GetString(0));
|
|
this.setState(state);
|
|
initialText = state.text;
|
|
}
|
|
|
|
this.editor = new SourceEditor();
|
|
|
|
let config = {
|
|
mode: SourceEditor.MODES.JAVASCRIPT,
|
|
showLineNumbers: true,
|
|
placeholderText: initialText
|
|
};
|
|
|
|
let editorPlaceholder = document.getElementById("scratchpad-editor");
|
|
this.editor.init(editorPlaceholder, config, this.onEditorLoad.bind(this));
|
|
},
|
|
|
|
/**
|
|
* The load event handler for the source editor. This method does post-load
|
|
* editor initialization.
|
|
*/
|
|
onEditorLoad: function SP_onEditorLoad()
|
|
{
|
|
this.editor.addEventListener(SourceEditor.EVENTS.CONTEXT_MENU,
|
|
this.onContextMenu);
|
|
this.editor.focus();
|
|
this.editor.setCaretOffset(this.editor.getCharCount());
|
|
},
|
|
|
|
/**
|
|
* Insert text at the current caret location.
|
|
*
|
|
* @param string aText
|
|
* The text you want to insert.
|
|
*/
|
|
insertTextAtCaret: function SP_insertTextAtCaret(aText)
|
|
{
|
|
let caretOffset = this.editor.getCaretOffset();
|
|
this.setText(aText, caretOffset, caretOffset);
|
|
this.editor.setCaretOffset(caretOffset + aText.length);
|
|
},
|
|
|
|
/**
|
|
* The contextmenu event handler for the source editor. This method opens the
|
|
* Scratchpad context menu popup at the pointer location.
|
|
*
|
|
* @param object aEvent
|
|
* An event object coming from the SourceEditor. This object needs to
|
|
* hold the screenX and screenY properties.
|
|
*/
|
|
onContextMenu: function SP_onContextMenu(aEvent)
|
|
{
|
|
let menu = document.getElementById("scratchpad-text-popup");
|
|
if (menu.state == "closed") {
|
|
menu.openPopupAtScreen(aEvent.screenX, aEvent.screenY, true);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* The popupshowing event handler for the Edit menu. This method updates the
|
|
* enabled/disabled state of the Undo and Redo commands, based on the editor
|
|
* state such that the menu items render correctly for the user when the menu
|
|
* shows.
|
|
*/
|
|
onEditPopupShowing: function SP_onEditPopupShowing()
|
|
{
|
|
let undo = document.getElementById("sp-cmd-undo");
|
|
undo.setAttribute("disabled", !this.editor.canUndo());
|
|
|
|
let redo = document.getElementById("sp-cmd-redo");
|
|
redo.setAttribute("disabled", !this.editor.canRedo());
|
|
},
|
|
|
|
/**
|
|
* Undo the last action of the user.
|
|
*/
|
|
undo: function SP_undo()
|
|
{
|
|
this.editor.undo();
|
|
},
|
|
|
|
/**
|
|
* Redo the previously undone action.
|
|
*/
|
|
redo: function SP_redo()
|
|
{
|
|
this.editor.redo();
|
|
},
|
|
|
|
/**
|
|
* The Scratchpad window unload event handler. This method unloads/destroys
|
|
* the source editor.
|
|
*
|
|
* @param nsIDOMEvent aEvent
|
|
*/
|
|
onUnload: function SP_onUnload(aEvent)
|
|
{
|
|
if (aEvent.target != document) {
|
|
return;
|
|
}
|
|
|
|
this.resetContext();
|
|
this.editor.removeEventListener(SourceEditor.EVENTS.CONTEXT_MENU,
|
|
this.onContextMenu);
|
|
this.editor.destroy();
|
|
this.editor = null;
|
|
},
|
|
};
|
|
|
|
XPCOMUtils.defineLazyGetter(Scratchpad, "strings", function () {
|
|
return Services.strings.createBundle(SCRATCHPAD_L10N);
|
|
});
|
|
|
|
addEventListener("DOMContentLoaded", Scratchpad.onLoad.bind(Scratchpad), false);
|
|
addEventListener("unload", Scratchpad.onUnload.bind(Scratchpad), false);
|