/* vim:set ts=2 sw=2 sts=2 et: * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ /* * Original version history can be found here: * https://github.com/mozilla/workspace * * Copied and relicensed from the Public Domain. * See bug 653934 for details. * https://bugzilla.mozilla.org/show_bug.cgi?id=653934 */ "use strict"; const Cc = Components.classes; const Ci = Components.interfaces; const Cu = Components.utils; Cu.import("resource://gre/modules/XPCOMUtils.jsm"); Cu.import("resource://gre/modules/Services.jsm"); Cu.import("resource://gre/modules/NetUtil.jsm"); Cu.import("resource:///modules/PropertyPanel.jsm"); Cu.import("resource:///modules/source-editor.jsm"); Cu.import("resource:///modules/devtools/scratchpad-manager.jsm"); Cu.import("resource://gre/modules/jsdebugger.jsm"); const SCRATCHPAD_CONTEXT_CONTENT = 1; const SCRATCHPAD_CONTEXT_BROWSER = 2; const SCRATCHPAD_L10N = "chrome://browser/locale/devtools/scratchpad.properties"; const DEVTOOLS_CHROME_ENABLED = "devtools.chrome.enabled"; const BUTTON_POSITION_SAVE = 0; const BUTTON_POSITION_CANCEL = 1; const BUTTON_POSITION_DONT_SAVE = 2; /** * The scratchpad object handles the Scratchpad window functionality. */ var Scratchpad = { _initialWindowTitle: document.title, /** * The script execution context. This tells Scratchpad in which context the * script shall execute. * * Possible values: * - SCRATCHPAD_CONTEXT_CONTENT to execute code in the context of the current * tab content window object. * - SCRATCHPAD_CONTEXT_BROWSER to execute code in the context of the * currently active chrome window object. */ executionContext: SCRATCHPAD_CONTEXT_CONTENT, /** * Tells if this Scratchpad is initialized and ready for use. * @boolean * @see addObserver */ initialized: false, /** * Retrieve the xul:notificationbox DOM element. It notifies the user when * the current code execution context is SCRATCHPAD_CONTEXT_BROWSER. */ get notificationBox() document.getElementById("scratchpad-notificationbox"), /** * Get the selected text from the editor. * * @return string * The selected text. */ get selectedText() this.editor.getSelectedText(), /** * Get the editor content, in the given range. If no range is given you get * the entire editor content. * * @param number [aStart=0] * Optional, start from the given offset. * @param number [aEnd=content char count] * Optional, end offset for the text you want. If this parameter is not * given, then the text returned goes until the end of the editor * content. * @return string * The text in the given range. */ getText: function SP_getText(aStart, aEnd) { return this.editor.getText(aStart, aEnd); }, /** * Replace text in the source editor with the given text, in the given range. * * @param string aText * The text you want to put into the editor. * @param number [aStart=0] * Optional, the start offset, zero based, from where you want to start * replacing text in the editor. * @param number [aEnd=char count] * Optional, the end offset, zero based, where you want to stop * replacing text in the editor. */ setText: function SP_setText(aText, aStart, aEnd) { this.editor.setText(aText, aStart, aEnd); }, /** * Set the filename in the scratchpad UI and object * * @param string aFilename * The new filename */ setFilename: function SP_setFilename(aFilename) { this.filename = aFilename; this._updateTitle(); }, /** * Update the Scratchpad window title based on the current state. * @private */ _updateTitle: function SP__updateTitle() { if (this.filename) { document.title = (this.editor && this.editor.dirty ? "*" : "") + this.filename; } else { document.title = this._initialWindowTitle; } }, /** * Get the current state of the scratchpad. Called by the * Scratchpad Manager for session storing. * * @return object * An object with 3 properties: filename, text, and * executionContext. */ getState: function SP_getState() { return { filename: this.filename, text: this.getText(), executionContext: this.executionContext, saved: !this.editor.dirty, }; }, /** * Set the filename and execution context using the given state. Called * when scratchpad is being restored from a previous session. * * @param object aState * An object with filename and executionContext properties. */ setState: function SP_getState(aState) { if (aState.filename) { this.setFilename(aState.filename); } if (this.editor) { this.editor.dirty = !aState.saved; } if (aState.executionContext == SCRATCHPAD_CONTEXT_BROWSER) { this.setBrowserContext(); } else { this.setContentContext(); } }, /** * Get the most recent chrome window of type navigator:browser. */ get browserWindow() Services.wm.getMostRecentWindow("navigator:browser"), /** * Reference to the last chrome window of type navigator:browser. We use this * to check if the chrome window changed since the last code evaluation. */ _previousWindow: null, /** * Get the gBrowser object of the most recent browser window. */ get gBrowser() { let recentWin = this.browserWindow; return recentWin ? recentWin.gBrowser : null; }, /** * Cached Cu.Sandbox object for the active tab content window object. */ _contentSandbox: null, /** * Get the Cu.Sandbox object for the active tab content window object. Note * that the returned object is cached for later reuse. The cached object is * kept only for the current location in the current tab of the current * browser window and it is reset for each context switch, * navigator:browser window switch, tab switch or navigation. */ get contentSandbox() { if (!this.browserWindow) { Cu.reportError(this.strings. GetStringFromName("browserWindow.unavailable")); return; } if (!this._contentSandbox || this.browserWindow != this._previousBrowserWindow || this._previousBrowser != this.gBrowser.selectedBrowser || this._previousLocation != this.gBrowser.contentWindow.location.href) { let contentWindow = this.gBrowser.selectedBrowser.contentWindow; this._contentSandbox = new Cu.Sandbox(contentWindow, { sandboxPrototype: contentWindow, wantXrays: false, sandboxName: 'scratchpad-content'}); this._previousBrowserWindow = this.browserWindow; this._previousBrowser = this.gBrowser.selectedBrowser; this._previousLocation = contentWindow.location.href; } return this._contentSandbox; }, /** * Cached Cu.Sandbox object for the most recently active navigator:browser * chrome window object. */ _chromeSandbox: null, /** * Get the Cu.Sandbox object for the most recently active navigator:browser * chrome window object. Note that the returned object is cached for later * reuse. The cached object is kept only for the current browser window and it * is reset for each context switch or navigator:browser window switch. */ get chromeSandbox() { if (!this.browserWindow) { Cu.reportError(this.strings. GetStringFromName("browserWindow.unavailable")); return; } if (!this._chromeSandbox || this.browserWindow != this._previousBrowserWindow) { this._chromeSandbox = new Cu.Sandbox(this.browserWindow, { sandboxPrototype: this.browserWindow, wantXrays: false, sandboxName: 'scratchpad-chrome'}); addDebuggerToGlobal(this._chromeSandbox); this._previousBrowserWindow = this.browserWindow; } return this._chromeSandbox; }, /** * Drop the editor selection. */ deselect: function SP_deselect() { this.editor.dropSelection(); }, /** * Select a specific range in the Scratchpad editor. * * @param number aStart * Selection range start. * @param number aEnd * Selection range end. */ selectRange: function SP_selectRange(aStart, aEnd) { this.editor.setSelection(aStart, aEnd); }, /** * Get the current selection range. * * @return object * An object with two properties, start and end, that give the * selection range (zero based offsets). */ getSelectionRange: function SP_getSelection() { return this.editor.getSelection(); }, /** * Evaluate a string in the active tab content window. * * @param string aString * The script you want evaluated. * @return mixed * The script evaluation result. */ evalInContentSandbox: function SP_evalInContentSandbox(aString) { let error, result; try { result = Cu.evalInSandbox(aString, this.contentSandbox, "1.8", "Scratchpad", 1); } catch (ex) { error = ex; } return [error, result]; }, /** * Evaluate a string in the most recent navigator:browser chrome window. * * @param string aString * The script you want evaluated. * @return mixed * The script evaluation result. */ evalInChromeSandbox: function SP_evalInChromeSandbox(aString) { let error, result; try { result = Cu.evalInSandbox(aString, this.chromeSandbox, "1.8", "Scratchpad", 1); } catch (ex) { error = ex; } return [error, result]; }, /** * Evaluate a string in the currently desired context, that is either the * chrome window or the tab content window object. * * @param string aString * The script you want to evaluate. * @return mixed * The script evaluation result. */ evalForContext: function SP_evaluateForContext(aString) { return this.executionContext == SCRATCHPAD_CONTEXT_CONTENT ? this.evalInContentSandbox(aString) : this.evalInChromeSandbox(aString); }, /** * Execute the selected text (if any) or the entire editor content in the * current context. * @return mixed * The script evaluation result. */ execute: function SP_execute() { let selection = this.selectedText || this.getText(); let [error, result] = this.evalForContext(selection); return [selection, error, result]; }, /** * Execute the selected text (if any) or the entire editor content in the * current context. */ run: function SP_run() { let [selection, error, result] = this.execute(); if (!error) { this.deselect(); } else { this.writeAsErrorComment(error); } return [selection, error, result]; }, /** * Execute the selected text (if any) or the entire editor content in the * current context. The resulting object is opened up in the Property Panel * for inspection. */ inspect: function SP_inspect() { let [selection, error, result] = this.execute(); if (!error) { this.deselect(); this.openPropertyPanel(selection, result); } else { this.writeAsErrorComment(error); } }, /** * Execute the selected text (if any) or the entire editor content in the * current context. The evaluation result is inserted into the editor after * the selected text, or at the end of the editor content if there is no * selected text. */ display: function SP_display() { let [selectedText, error, result] = this.execute(); if (!error) { this.writeAsComment(result); } else { this.writeAsErrorComment(error); } }, /** * Write out a value at the next line from the current insertion point. * The comment block will always be preceded by a newline character. * @param object aValue * The Object to write out as a string */ writeAsComment: function SP_writeAsComment(aValue) { let selection = this.getSelectionRange(); let insertionPoint = selection.start != selection.end ? selection.end : // after selected text this.editor.getCharCount(); // after text end let newComment = "\n/*\n" + aValue + "\n*/"; this.setText(newComment, insertionPoint, insertionPoint); // Select the new comment. this.selectRange(insertionPoint, insertionPoint + newComment.length); }, /** * Write out an error at the current insertion point as a block comment * @param object aValue * The Error object to write out the message and stack trace */ writeAsErrorComment: function SP_writeAsErrorComment(aError) { let stack = aError.stack || aError.fileName + ":" + aError.lineNumber; let newComment = "Exception: " + aError.message + "\n" + stack.replace(/\n$/, ""); this.writeAsComment(newComment); }, /** * Open the Property Panel to inspect the given object. * * @param string aEvalString * The string that was evaluated. This is re-used when the user updates * the properties list, by clicking the Update button. * @param object aOutputObject * The object to inspect, which is the aEvalString evaluation result. * @return object * The PropertyPanel object instance. */ openPropertyPanel: function SP_openPropertyPanel(aEvalString, aOutputObject) { let self = this; let propPanel; // The property panel has a button: // `Update`: reexecutes the string executed on the command line. The // result will be inspected by this panel. let buttons = []; // If there is a evalString passed to this function, then add a `Update` // button to the panel so that the evalString can be reexecuted to update // the content of the panel. if (aEvalString !== null) { buttons.push({ label: this.strings. GetStringFromName("propertyPanel.updateButton.label"), accesskey: this.strings. GetStringFromName("propertyPanel.updateButton.accesskey"), oncommand: function () { let [error, result] = self.evalForContext(aEvalString); if (!error) { propPanel.treeView.data = result; } } }); } let doc = this.browserWindow.document; let parent = doc.getElementById("mainPopupSet"); let title = aOutputObject.toString(); propPanel = new PropertyPanel(parent, doc, title, aOutputObject, buttons); let panel = propPanel.panel; panel.setAttribute("class", "scratchpad_propertyPanel"); panel.openPopup(null, "after_pointer", 0, 0, false, false); panel.sizeTo(200, 400); return propPanel; }, // Menu Operations /** * Open a new Scratchpad window. * * @return nsIWindow */ openScratchpad: function SP_openScratchpad() { return ScratchpadManager.openScratchpad(); }, /** * Export the textbox content to a file. * * @param nsILocalFile aFile * The file where you want to save the textbox content. * @param boolean aNoConfirmation * If the file already exists, ask for confirmation? * @param boolean aSilentError * True if you do not want to display an error when file save fails, * false otherwise. * @param function aCallback * Optional function you want to call when file save completes. It will * get the following arguments: * 1) the nsresult status code for the export operation. */ exportToFile: function SP_exportToFile(aFile, aNoConfirmation, aSilentError, aCallback) { if (!aNoConfirmation && aFile.exists() && !window.confirm(this.strings. GetStringFromName("export.fileOverwriteConfirmation"))) { return; } let fs = Cc["@mozilla.org/network/file-output-stream;1"]. createInstance(Ci.nsIFileOutputStream); let modeFlags = 0x02 | 0x08 | 0x20; fs.init(aFile, modeFlags, 420 /* 0644 */, fs.DEFER_OPEN); let converter = Cc["@mozilla.org/intl/scriptableunicodeconverter"]. createInstance(Ci.nsIScriptableUnicodeConverter); converter.charset = "UTF-8"; let input = converter.convertToInputStream(this.getText()); let self = this; NetUtil.asyncCopy(input, fs, function(aStatus) { if (!aSilentError && !Components.isSuccessCode(aStatus)) { window.alert(self.strings.GetStringFromName("saveFile.failed")); } if (aCallback) { aCallback.call(self, aStatus); } }); }, /** * Read the content of a file and put it into the textbox. * * @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)) { let converter = Cc["@mozilla.org/intl/scriptableunicodeconverter"]. createInstance(Ci.nsIScriptableUnicodeConverter); converter.charset = "UTF-8"; content = NetUtil.readInputStreamToString(aInputStream, aInputStream.available()); content = converter.ConvertToUnicode(content); self.setText(content); self.editor.resetUndo(); } 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, false); } }, /** * Save the textbox content to the currently open file. * * @param function aCallback * Optional function you want to call when file is saved */ saveFile: function SP_saveFile(aCallback) { if (!this.filename) { return this.saveFileAs(aCallback); } let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsILocalFile); file.initWithPath(this.filename); this.exportToFile(file, true, false, function(aStatus) { if (Components.isSuccessCode(aStatus)) { this.editor.dirty = false; } if (aCallback) { aCallback(aStatus); } }); }, /** * Save the textbox content to a new file. * * @param function aCallback * Optional function you want to call when file is saved */ saveFileAs: function SP_saveFileAs(aCallback) { 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) { this.setFilename(fp.file.path); this.exportToFile(fp.file, true, false, function(aStatus) { if (Components.isSuccessCode(aStatus)) { this.editor.dirty = false; } if (aCallback) { aCallback(aStatus); } }); } }, /** * 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 load 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 state = null; let initialText = this.strings.GetStringFromName("scratchpadIntro"); if ("arguments" in window && window.arguments[0] instanceof Ci.nsIDialogParamBlock) { 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, initialText: initialText, contextMenu: "scratchpad-text-popup", }; let editorPlaceholder = document.getElementById("scratchpad-editor"); this.editor.init(editorPlaceholder, config, this._onEditorLoad.bind(this, state)); }, /** * The load event handler for the source editor. This method does post-load * editor initialization. * * @private * @param object aState * The initial Scratchpad state object. */ _onEditorLoad: function SP__onEditorLoad(aState) { this.editor.addEventListener(SourceEditor.EVENTS.DIRTY_CHANGED, this._onDirtyChanged); this.editor.focus(); this.editor.setCaretOffset(this.editor.getCharCount()); if (aState) { this.editor.dirty = !aState.saved; } this.initialized = true; this._triggerObservers("Ready"); }, /** * 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 Source Editor DirtyChanged event handler. This function updates the * Scratchpad window title to show an asterisk when there are unsaved changes. * * @private * @see SourceEditor.EVENTS.DIRTY_CHANGED * @param object aEvent * The DirtyChanged event object. */ _onDirtyChanged: function SP__onDirtyChanged(aEvent) { Scratchpad._updateTitle(); }, /** * 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.DIRTY_CHANGED, this._onDirtyChanged); this.editor.destroy(); this.editor = null; this.initialized = false; }, /** * Prompt to save scratchpad if it has unsaved changes. * * @param function aCallback * Optional function you want to call when file is saved. The callback * receives three arguments: * - toClose (boolean) - tells if the window should be closed. * - saved (boolen) - tells if the file has been saved. * - status (number) - the file save status result (if the file was * saved). * @return boolean * Whether the window should be closed */ promptSave: function SP_promptSave(aCallback) { if (this.filename && this.editor.dirty) { let ps = Services.prompt; let flags = ps.BUTTON_POS_0 * ps.BUTTON_TITLE_SAVE + ps.BUTTON_POS_1 * ps.BUTTON_TITLE_CANCEL + ps.BUTTON_POS_2 * ps.BUTTON_TITLE_DONT_SAVE; let button = ps.confirmEx(window, this.strings.GetStringFromName("confirmClose.title"), this.strings.GetStringFromName("confirmClose"), flags, null, null, null, null, {}); if (button == BUTTON_POSITION_CANCEL) { if (aCallback) { aCallback(false, false); } return false; } if (button == BUTTON_POSITION_SAVE) { this.saveFile(function(aStatus) { if (aCallback) { aCallback(true, true, aStatus); } }); return true; } } if (aCallback) { aCallback(true, false); } return true; }, /** * Handler for window close event. Prompts to save scratchpad if * there are unsaved changes. * * @param nsIDOMEvent aEvent */ onClose: function SP_onClose(aEvent) { if (this._skipClosePrompt) { return; } this.promptSave(function(aShouldClose, aSaved, aStatus) { let shouldClose = aShouldClose; if (aSaved && !Components.isSuccessCode(aStatus)) { shouldClose = false; } if (shouldClose) { this._skipClosePrompt = true; window.close(); } }.bind(this)); aEvent.preventDefault(); }, /** * Close the scratchpad window. Prompts before closing if the scratchpad * has unsaved changes. * * @param function aCallback * Optional function you want to call when file is saved */ close: function SP_close(aCallback) { this.promptSave(function(aShouldClose, aSaved, aStatus) { let shouldClose = aShouldClose; if (aSaved && !Components.isSuccessCode(aStatus)) { shouldClose = false; } if (shouldClose) { this._skipClosePrompt = true; window.close(); } if (aCallback) { aCallback(); } }.bind(this)); }, _observers: [], /** * Add an observer for Scratchpad events. * * The observer implements IScratchpadObserver := { * onReady: Called when the Scratchpad and its SourceEditor are ready. * Arguments: (Scratchpad aScratchpad) * } * * All observer handlers are optional. * * @param IScratchpadObserver aObserver * @see removeObserver */ addObserver: function SP_addObserver(aObserver) { this._observers.push(aObserver); }, /** * Remove an observer for Scratchpad events. * * @param IScratchpadObserver aObserver * @see addObserver */ removeObserver: function SP_removeObserver(aObserver) { let index = this._observers.indexOf(aObserver); if (index != -1) { this._observers.splice(index, 1); } }, /** * Trigger named handlers in Scratchpad observers. * * @param string aName * Name of the handler to trigger. * @param Array aArgs * Optional array of arguments to pass to the observer(s). * @see addObserver */ _triggerObservers: function SP_triggerObservers(aName, aArgs) { // insert this Scratchpad instance as the first argument if (!aArgs) { aArgs = [this]; } else { aArgs.unshift(this); } // trigger all observers that implement this named handler for (let i = 0; i < this._observers.length; ++i) { let observer = this._observers[i]; let handler = observer["on" + aName]; if (handler) { handler.apply(observer, aArgs); } } }, openDocumentationPage: function SP_openDocumentationPage() { let url = this.strings.GetStringFromName("help.openDocumentationPage"); let newTab = this.gBrowser.addTab(url); this.browserWindow.focus(); this.gBrowser.selectedTab = newTab; }, }; XPCOMUtils.defineLazyGetter(Scratchpad, "strings", function () { return Services.strings.createBundle(SCRATCHPAD_L10N); }); addEventListener("load", Scratchpad.onLoad.bind(Scratchpad), false); addEventListener("unload", Scratchpad.onUnload.bind(Scratchpad), false); addEventListener("close", Scratchpad.onClose.bind(Scratchpad), false);