gecko-dev/browser/devtools/scratchpad/scratchpad.js

2421 lines
68 KiB
JavaScript

/* 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 Cu = Components.utils;
const Cc = Components.classes;
const Ci = Components.interfaces;
const SCRATCHPAD_CONTEXT_CONTENT = 1;
const SCRATCHPAD_CONTEXT_BROWSER = 2;
const BUTTON_POSITION_SAVE = 0;
const BUTTON_POSITION_CANCEL = 1;
const BUTTON_POSITION_DONT_SAVE = 2;
const BUTTON_POSITION_REVERT = 0;
const EVAL_FUNCTION_TIMEOUT = 1000; // milliseconds
const MAXIMUM_FONT_SIZE = 96;
const MINIMUM_FONT_SIZE = 6;
const NORMAL_FONT_SIZE = 12;
const SCRATCHPAD_L10N = "chrome://browser/locale/devtools/scratchpad.properties";
const DEVTOOLS_CHROME_ENABLED = "devtools.chrome.enabled";
const PREF_RECENT_FILES_MAX = "devtools.scratchpad.recentFilesMax";
const SHOW_TRAILING_SPACE = "devtools.scratchpad.showTrailingSpace";
const ENABLE_AUTOCOMPLETION = "devtools.scratchpad.enableAutocompletion";
const TAB_SIZE = "devtools.editor.tabsize";
const FALLBACK_CHARSET_LIST = "intl.fallbackCharsetList.ISO-8859-1";
const VARIABLES_VIEW_URL = "chrome://browser/content/devtools/widgets/VariablesView.xul";
const require = Cu.import("resource://gre/modules/devtools/Loader.jsm", {}).devtools.require;
const Telemetry = require("devtools/shared/telemetry");
const Editor = require("devtools/sourceeditor/editor");
const TargetFactory = require("devtools/framework/target").TargetFactory;
const EventEmitter = require("devtools/toolkit/event-emitter");
const { Promise: promise } = Cu.import("resource://gre/modules/Promise.jsm", {});
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/devtools/scratchpad-manager.jsm");
Cu.import("resource://gre/modules/jsdebugger.jsm");
Cu.import("resource:///modules/devtools/gDevTools.jsm");
Cu.import("resource://gre/modules/osfile.jsm");
Cu.import("resource:///modules/devtools/ViewHelpers.jsm");
Cu.import("resource://gre/modules/reflect.jsm");
Cu.import("resource://gre/modules/devtools/DevToolsUtils.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "VariablesView",
"resource:///modules/devtools/VariablesView.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "VariablesViewController",
"resource:///modules/devtools/VariablesViewController.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "EnvironmentClient",
"resource://gre/modules/devtools/dbg-client.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "ObjectClient",
"resource://gre/modules/devtools/dbg-client.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "DebuggerServer",
"resource://gre/modules/devtools/dbg-server.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "DebuggerClient",
"resource://gre/modules/devtools/dbg-client.jsm");
XPCOMUtils.defineLazyGetter(this, "REMOTE_TIMEOUT", () =>
Services.prefs.getIntPref("devtools.debugger.remote-timeout"));
XPCOMUtils.defineLazyModuleGetter(this, "ShortcutUtils",
"resource://gre/modules/ShortcutUtils.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "Reflect",
"resource://gre/modules/reflect.jsm");
// Because we have no constructor / destructor where we can log metrics we need
// to do so here.
let telemetry = new Telemetry();
telemetry.toolOpened("scratchpad");
let WebConsoleUtils = require("devtools/toolkit/webconsole/utils").Utils;
/**
* The scratchpad object handles the Scratchpad window functionality.
*/
var Scratchpad = {
_instanceId: null,
_initialWindowTitle: document.title,
_dirty: false,
/**
* Check if provided string is a mode-line and, if it is, return an
* object with its values.
*
* @param string aLine
* @return string
*/
_scanModeLine: function SP__scanModeLine(aLine="")
{
aLine = aLine.trim();
let obj = {};
let ch1 = aLine.charAt(0);
let ch2 = aLine.charAt(1);
if (ch1 !== "/" || (ch2 !== "*" && ch2 !== "/")) {
return obj;
}
aLine = aLine
.replace(/^\/\//, "")
.replace(/^\/\*/, "")
.replace(/\*\/$/, "");
aLine.split(",").forEach(pair => {
let [key, val] = pair.split(":");
if (key && val) {
obj[key.trim()] = val.trim();
}
});
return obj;
},
/**
* Add the event listeners for popupshowing events.
*/
_setupPopupShowingListeners: function SP_setupPopupShowing() {
let elementIDs = ['sp-menu_editpopup', 'scratchpad-text-popup'];
for (let elementID of elementIDs) {
let elem = document.getElementById(elementID);
if (elem) {
elem.addEventListener("popupshowing", function () {
goUpdateGlobalEditMenuItems();
let commands = ['cmd_undo', 'cmd_redo', 'cmd_delete', 'cmd_findAgain'];
commands.forEach(goUpdateCommand);
});
}
}
},
/**
* Add the event event listeners for command events.
*/
_setupCommandListeners: function SP_setupCommands() {
let commands = {
"cmd_gotoLine": () => {
goDoCommand('cmd_gotoLine');
},
"sp-cmd-newWindow": () => {
Scratchpad.openScratchpad();
},
"sp-cmd-openFile": () => {
Scratchpad.openFile();
},
"sp-cmd-clearRecentFiles": () => {
Scratchpad.clearRecentFiles();
},
"sp-cmd-save": () => {
Scratchpad.saveFile();
},
"sp-cmd-saveas": () => {
Scratchpad.saveFileAs();
},
"sp-cmd-revert": () => {
Scratchpad.promptRevert();
},
"sp-cmd-close": () => {
Scratchpad.close();
},
"sp-cmd-run": () => {
Scratchpad.run();
},
"sp-cmd-inspect": () => {
Scratchpad.inspect();
},
"sp-cmd-display": () => {
Scratchpad.display();
},
"sp-cmd-pprint": () => {
Scratchpad.prettyPrint();
},
"sp-cmd-contentContext": () => {
Scratchpad.setContentContext();
},
"sp-cmd-browserContext": () => {
Scratchpad.setBrowserContext();
},
"sp-cmd-reloadAndRun": () => {
Scratchpad.reloadAndRun();
},
"sp-cmd-evalFunction": () => {
Scratchpad.evalTopLevelFunction();
},
"sp-cmd-errorConsole": () => {
Scratchpad.openErrorConsole();
},
"sp-cmd-webConsole": () => {
Scratchpad.openWebConsole();
},
"sp-cmd-documentationLink": () => {
Scratchpad.openDocumentationPage();
},
"sp-cmd-hideSidebar": () => {
Scratchpad.sidebar.hide();
},
"sp-cmd-line-numbers": () => {
Scratchpad.toggleEditorOption('lineNumbers');
},
"sp-cmd-wrap-text": () => {
Scratchpad.toggleEditorOption('lineWrapping');
},
"sp-cmd-highlight-trailing-space": () => {
Scratchpad.toggleEditorOption('showTrailingSpace');
},
"sp-cmd-larger-font": () => {
Scratchpad.increaseFontSize();
},
"sp-cmd-smaller-font": () => {
Scratchpad.decreaseFontSize();
},
"sp-cmd-normal-font": () => {
Scratchpad.normalFontSize();
},
}
for (let command in commands) {
let elem = document.getElementById(command);
if (elem) {
elem.addEventListener("command", commands[command]);
}
}
},
/**
* 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,
/**
* Returns the 'dirty' state of this Scratchpad.
*/
get dirty()
{
let clean = this.editor && this.editor.isClean();
return this._dirty || !clean;
},
/**
* Sets the 'dirty' state of this Scratchpad.
*/
set dirty(aValue)
{
this._dirty = aValue;
if (!aValue && this.editor)
this.editor.setClean();
this._updateTitle();
},
/**
* Retrieve the xul:notificationbox DOM element. It notifies the user when
* the current code execution context is SCRATCHPAD_CONTEXT_BROWSER.
*/
get notificationBox()
{
return document.getElementById("scratchpad-notificationbox");
},
/**
* Hide the menu bar.
*/
hideMenu: function SP_hideMenu()
{
document.getElementById("sp-menubar").style.display = "none";
},
/**
* Show the menu bar.
*/
showMenu: function SP_showMenu()
{
document.getElementById("sp-menubar").style.display = "";
},
/**
* 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)
{
var value = this.editor.getText();
return value.slice(aStart || 0, aEnd || value.length);
},
/**
* 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()
{
let title = this.filename || this._initialWindowTitle;
if (this.dirty)
title = "*" + title;
document.title = title;
},
/**
* 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.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_setState(aState)
{
if (aState.filename)
this.setFilename(aState.filename);
this.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()
{
return Services.wm.getMostRecentWindow("navigator:browser");
},
/**
* Get the gBrowser object of the most recent browser window.
*/
get gBrowser()
{
let recentWin = this.browserWindow;
return recentWin ? recentWin.gBrowser : null;
},
/**
* Unique name for the current Scratchpad instance. Used to distinguish
* Scratchpad windows between each other. See bug 661762.
*/
get uniqueName()
{
return "Scratchpad/" + this._instanceId;
},
/**
* Sidebar that contains the VariablesView for object inspection.
*/
get sidebar()
{
if (!this._sidebar) {
this._sidebar = new ScratchpadSidebar(this);
}
return this._sidebar;
},
/**
* Replaces context of an editor with provided value (a string).
* Note: this method is simply a shortcut to editor.setText.
*/
setText: function SP_setText(value)
{
return this.editor.setText(value);
},
/**
* 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 Promise
* The promise for the script evaluation result.
*/
evaluate: function SP_evaluate(aString)
{
let connection;
if (this.target) {
connection = ScratchpadTarget.consoleFor(this.target);
}
else if (this.executionContext == SCRATCHPAD_CONTEXT_CONTENT) {
connection = ScratchpadTab.consoleFor(this.gBrowser.selectedTab);
}
else {
connection = ScratchpadWindow.consoleFor(this.browserWindow);
}
let evalOptions = { url: this.uniqueName };
return connection.then(({ debuggerClient, webConsoleClient }) => {
let deferred = promise.defer();
webConsoleClient.evaluateJS(aString, aResponse => {
this.debuggerClient = debuggerClient;
this.webConsoleClient = webConsoleClient;
if (aResponse.error) {
deferred.reject(aResponse);
}
else if (aResponse.exception !== null) {
deferred.resolve([aString, aResponse]);
}
else {
deferred.resolve([aString, undefined, aResponse.result]);
}
}, evalOptions);
return deferred.promise;
});
},
/**
* Execute the selected text (if any) or the entire editor content in the
* current context.
*
* @return Promise
* The promise for the script evaluation result.
*/
execute: function SP_execute()
{
WebConsoleUtils.usageCount++;
let selection = this.editor.getSelection() || this.getText();
return this.evaluate(selection);
},
/**
* Execute the selected text (if any) or the entire editor content in the
* current context.
*
* @return Promise
* The promise for the script evaluation result.
*/
run: function SP_run()
{
let deferred = promise.defer();
let reject = aReason => deferred.reject(aReason);
this.execute().then(([aString, aError, aResult]) => {
let resolve = () => deferred.resolve([aString, aError, aResult]);
if (aError) {
this.writeAsErrorComment(aError.exception).then(resolve, reject);
}
else {
this.editor.dropSelection();
resolve();
}
}, reject);
return deferred.promise;
},
/**
* Execute the selected text (if any) or the entire editor content in the
* current context. The resulting object is inspected up in the sidebar.
*
* @return Promise
* The promise for the script evaluation result.
*/
inspect: function SP_inspect()
{
let deferred = promise.defer();
let reject = aReason => deferred.reject(aReason);
this.execute().then(([aString, aError, aResult]) => {
let resolve = () => deferred.resolve([aString, aError, aResult]);
if (aError) {
this.writeAsErrorComment(aError.exception).then(resolve, reject);
}
else {
this.editor.dropSelection();
this.sidebar.open(aString, aResult).then(resolve, reject);
}
}, reject);
return deferred.promise;
},
/**
* Reload the current page and execute the entire editor content when
* the page finishes loading. Note that this operation should be available
* only in the content context.
*
* @return Promise
* The promise for the script evaluation result.
*/
reloadAndRun: function SP_reloadAndRun()
{
let deferred = promise.defer();
if (this.executionContext !== SCRATCHPAD_CONTEXT_CONTENT) {
Cu.reportError(this.strings.
GetStringFromName("scratchpadContext.invalid"));
return;
}
let browser = this.gBrowser.selectedBrowser;
this._reloadAndRunEvent = evt => {
if (evt.target !== browser.contentDocument) {
return;
}
browser.removeEventListener("load", this._reloadAndRunEvent, true);
this.run().then(aResults => deferred.resolve(aResults));
};
browser.addEventListener("load", this._reloadAndRunEvent, true);
browser.contentWindow.location.reload();
return deferred.promise;
},
/**
* 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.
*
* @return Promise
* The promise for the script evaluation result.
*/
display: function SP_display()
{
let deferred = promise.defer();
let reject = aReason => deferred.reject(aReason);
this.execute().then(([aString, aError, aResult]) => {
let resolve = () => deferred.resolve([aString, aError, aResult]);
if (aError) {
this.writeAsErrorComment(aError.exception).then(resolve, reject);
}
else if (VariablesView.isPrimitive({ value: aResult })) {
this._writePrimitiveAsComment(aResult).then(resolve, reject);
}
else {
let objectClient = new ObjectClient(this.debuggerClient, aResult);
objectClient.getDisplayString(aResponse => {
if (aResponse.error) {
reportError("display", aResponse);
reject(aResponse);
}
else {
this.writeAsComment(aResponse.displayString);
resolve();
}
});
}
}, reject);
return deferred.promise;
},
_prettyPrintWorker: null,
/**
* Get or create the worker that handles pretty printing.
*/
get prettyPrintWorker() {
if (!this._prettyPrintWorker) {
this._prettyPrintWorker = new ChromeWorker(
"resource://gre/modules/devtools/server/actors/pretty-print-worker.js");
this._prettyPrintWorker.addEventListener("error", ({ message, filename, lineno }) => {
DevToolsUtils.reportException(message + " @ " + filename + ":" + lineno);
}, false);
}
return this._prettyPrintWorker;
},
/**
* Pretty print the source text inside the scratchpad.
*
* @return Promise
* A promise resolved with the pretty printed code, or rejected with
* an error.
*/
prettyPrint: function SP_prettyPrint() {
const uglyText = this.getText();
const tabsize = Services.prefs.getIntPref(TAB_SIZE);
const id = Math.random();
const deferred = promise.defer();
const onReply = ({ data }) => {
if (data.id !== id) {
return;
}
this.prettyPrintWorker.removeEventListener("message", onReply, false);
if (data.error) {
let errorString = DevToolsUtils.safeErrorString(data.error);
this.writeAsErrorComment(errorString);
deferred.reject(errorString);
} else {
this.editor.setText(data.code);
deferred.resolve(data.code);
}
};
this.prettyPrintWorker.addEventListener("message", onReply, false);
this.prettyPrintWorker.postMessage({
id: id,
url: "(scratchpad)",
indent: tabsize,
source: uglyText
});
return deferred.promise;
},
/**
* Parse the text and return an AST. If we can't parse it, write an error
* comment and return false.
*/
_parseText: function SP__parseText(aText) {
try {
return Reflect.parse(aText);
} catch (e) {
this.writeAsErrorComment(DevToolsUtils.safeErrorString(e));
return false;
}
},
/**
* Determine if the given AST node location contains the given cursor
* position.
*
* @returns Boolean
*/
_containsCursor: function (aLoc, aCursorPos) {
// Our line numbers are 1-based, while CodeMirror's are 0-based.
const lineNumber = aCursorPos.line + 1;
const columnNumber = aCursorPos.ch;
if (aLoc.start.line <= lineNumber && aLoc.end.line >= lineNumber) {
if (aLoc.start.line === aLoc.end.line) {
return aLoc.start.column <= columnNumber
&& aLoc.end.column >= columnNumber;
}
if (aLoc.start.line == lineNumber) {
return columnNumber >= aLoc.start.column;
}
if (aLoc.end.line == lineNumber) {
return columnNumber <= aLoc.end.column;
}
return true;
}
return false;
},
/**
* Find the top level function AST node that the cursor is within.
*
* @returns Object|null
*/
_findTopLevelFunction: function SP__findTopLevelFunction(aAst, aCursorPos) {
for (let statement of aAst.body) {
switch (statement.type) {
case "FunctionDeclaration":
if (this._containsCursor(statement.loc, aCursorPos)) {
return statement;
}
break;
case "VariableDeclaration":
for (let decl of statement.declarations) {
if (!decl.init) {
continue;
}
if ((decl.init.type == "FunctionExpression"
|| decl.init.type == "ArrowExpression")
&& this._containsCursor(decl.loc, aCursorPos)) {
return decl;
}
}
break;
}
}
return null;
},
/**
* Get the source text associated with the given function statement.
*
* @param Object aFunction
* @param String aFullText
* @returns String
*/
_getFunctionText: function SP__getFunctionText(aFunction, aFullText) {
let functionText = "";
// Initially set to 0, but incremented first thing in the loop below because
// line numbers are 1 based, not 0 based.
let lineNumber = 0;
const { start, end } = aFunction.loc;
const singleLine = start.line === end.line;
for (let line of aFullText.split(/\n/g)) {
lineNumber++;
if (singleLine && start.line === lineNumber) {
functionText = line.slice(start.column, end.column);
break;
}
if (start.line === lineNumber) {
functionText += line.slice(start.column) + "\n";
continue;
}
if (end.line === lineNumber) {
functionText += line.slice(0, end.column);
break;
}
if (start.line < lineNumber && end.line > lineNumber) {
functionText += line + "\n";
}
}
return functionText;
},
/**
* Evaluate the top level function that the cursor is resting in.
*
* @returns Promise [text, error, result]
*/
evalTopLevelFunction: function SP_evalTopLevelFunction() {
const text = this.getText();
const ast = this._parseText(text);
if (!ast) {
return promise.resolve([text, undefined, undefined]);
}
const cursorPos = this.editor.getCursor();
const funcStatement = this._findTopLevelFunction(ast, cursorPos);
if (!funcStatement) {
return promise.resolve([text, undefined, undefined]);
}
let functionText = this._getFunctionText(funcStatement, text);
// TODO: This is a work around for bug 940086. It should be removed when
// that is fixed.
if (funcStatement.type == "FunctionDeclaration"
&& !functionText.startsWith("function ")) {
functionText = "function " + functionText;
funcStatement.loc.start.column -= 9;
}
// The decrement by one is because our line numbers are 1-based, while
// CodeMirror's are 0-based.
const from = {
line: funcStatement.loc.start.line - 1,
ch: funcStatement.loc.start.column
};
const to = {
line: funcStatement.loc.end.line - 1,
ch: funcStatement.loc.end.column
};
const marker = this.editor.markText(from, to, "eval-text");
setTimeout(() => marker.clear(), EVAL_FUNCTION_TIMEOUT);
return this.evaluate(functionText);
},
/**
* Writes out a primitive value as a comment. This handles values which are
* to be printed directly (number, string) as well as grips to values
* (null, undefined, longString).
*
* @param any aValue
* The value to print.
* @return Promise
* The promise that resolves after the value has been printed.
*/
_writePrimitiveAsComment: function SP__writePrimitiveAsComment(aValue)
{
let deferred = promise.defer();
if (aValue.type == "longString") {
let client = this.webConsoleClient;
client.longString(aValue).substring(0, aValue.length, aResponse => {
if (aResponse.error) {
reportError("display", aResponse);
deferred.reject(aResponse);
}
else {
deferred.resolve(aResponse.substring);
}
});
}
else {
deferred.resolve(aValue.type || aValue);
}
return deferred.promise.then(aComment => {
this.writeAsComment(aComment);
});
},
/**
* 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 value = "\n/*\n" + aValue + "\n*/";
if (this.editor.somethingSelected()) {
let from = this.editor.getCursor("end");
this.editor.replaceSelection(this.editor.getSelection() + value);
let to = this.editor.getPosition(this.editor.getOffset(from) + value.length);
this.editor.setSelection(from, to);
return;
}
let text = this.editor.getText();
this.editor.setText(text + value);
let [ from, to ] = this.editor.getPosition(text.length, (text + value).length);
this.editor.setSelection(from, to);
},
/**
* 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
* @return Promise
* The promise that indicates when writing the comment completes.
*/
writeAsErrorComment: function SP_writeAsErrorComment(aError)
{
let deferred = promise.defer();
if (VariablesView.isPrimitive({ value: aError })) {
let type = aError.type;
if (type == "undefined" ||
type == "null" ||
type == "Infinity" ||
type == "-Infinity" ||
type == "NaN" ||
type == "-0") {
deferred.resolve(type);
}
else if (type == "longString") {
deferred.resolve(aError.initial + "\u2026");
}
else {
deferred.resolve(aError);
}
}
else {
let objectClient = new ObjectClient(this.debuggerClient, aError);
objectClient.getPrototypeAndProperties(aResponse => {
if (aResponse.error) {
deferred.reject(aResponse);
return;
}
let { ownProperties, safeGetterValues } = aResponse;
let error = Object.create(null);
// Combine all the property descriptor/getter values into one object.
for (let key of Object.keys(safeGetterValues)) {
error[key] = safeGetterValues[key].getterValue;
}
for (let key of Object.keys(ownProperties)) {
error[key] = ownProperties[key].value;
}
// Assemble the best possible stack we can given the properties we have.
let stack;
if (typeof error.stack == "string" && error.stack) {
stack = error.stack;
}
else if (typeof error.fileName == "string") {
stack = "@" + error.fileName;
if (typeof error.lineNumber == "number") {
stack += ":" + error.lineNumber;
}
}
else if (typeof error.lineNumber == "number") {
stack = "@" + error.lineNumber;
}
stack = stack ? "\n" + stack.replace(/\n$/, "") : "";
if (typeof error.message == "string") {
deferred.resolve(error.message + stack);
}
else {
objectClient.getDisplayString(aResponse => {
if (aResponse.error) {
deferred.reject(aResponse);
}
else if (typeof aResponse.displayString == "string") {
deferred.resolve(aResponse.displayString + stack);
}
else {
deferred.resolve(stack);
}
});
}
});
}
return deferred.promise.then(aMessage => {
console.error(aMessage);
this.writeAsComment("Exception: " + aMessage);
});
},
// 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 encoder = new TextEncoder();
let buffer = encoder.encode(this.getText());
let writePromise = OS.File.writeAtomic(aFile.path, buffer,{tmpPath: aFile.path + ".tmp"});
writePromise.then(value => {
if (aCallback) {
aCallback.call(this, Components.results.NS_OK);
}
}, reason => {
if (!aSilentError) {
window.alert(this.strings.GetStringFromName("saveFile.failed"));
}
if (aCallback) {
aCallback.call(this, Components.results.NS_ERROR_UNEXPECTED);
}
});
},
/**
* Get a list of applicable charsets.
* The best charset, defaulting to "UTF-8"
*
* @param string aBestCharset
* @return array of strings
*/
_getApplicableCharsets: function SP__getApplicableCharsets(aBestCharset="UTF-8") {
let charsets = Services.prefs.getCharPref(
FALLBACK_CHARSET_LIST).split(",").filter(function (value) {
return value.length;
});
charsets.unshift(aBestCharset);
return charsets;
},
/**
* Get content converted to unicode, using a list of input charset to try.
*
* @param string aContent
* @param array of string aCharsetArray
* @return string
*/
_getUnicodeContent: function SP__getUnicodeContent(aContent, aCharsetArray) {
let content = null,
converter = Cc["@mozilla.org/intl/scriptableunicodeconverter"].createInstance(Ci.nsIScriptableUnicodeConverter),
success = aCharsetArray.some(charset => {
try {
converter.charset = charset;
content = converter.ConvertToUnicode(aContent);
return true;
} catch (e) {
this.notificationBox.appendNotification(
this.strings.formatStringFromName("importFromFile.convert.failed",
[ charset ], 1),
"file-import-convert-failed",
null,
this.notificationBox.PRIORITY_WARNING_HIGH,
null);
}
});
return content;
},
/**
* 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";
this.notificationBox.removeAllNotifications(false);
NetUtil.asyncFetch(channel, (aInputStream, aStatus) => {
let content = null;
if (Components.isSuccessCode(aStatus)) {
let charsets = this._getApplicableCharsets();
content = NetUtil.readInputStreamToString(aInputStream,
aInputStream.available());
content = this._getUnicodeContent(content, charsets);
if (!content) {
let message = this.strings.formatStringFromName(
"importFromFile.convert.failed",
[ charsets.join(", ") ],
1);
this.notificationBox.appendNotification(
message,
"file-import-convert-failed",
null,
this.notificationBox.PRIORITY_CRITICAL_MEDIUM,
null);
if (aCallback) {
aCallback.call(this, aStatus, content);
}
return;
}
// Check to see if the first line is a mode-line comment.
let line = content.split("\n")[0];
let modeline = this._scanModeLine(line);
let chrome = Services.prefs.getBoolPref(DEVTOOLS_CHROME_ENABLED);
if (chrome && modeline["-sp-context"] === "browser") {
this.setBrowserContext();
}
this.editor.setText(content);
this.editor.clearHistory();
this.dirty = false;
document.getElementById("sp-cmd-revert").setAttribute("disabled", true);
}
else if (!aSilentError) {
window.alert(this.strings.GetStringFromName("openFile.failed"));
}
this.setFilename(aFile.path);
this.setRecentFile(aFile);
if (aCallback) {
aCallback.call(this, aStatus, content);
}
});
},
/**
* Open a file to edit in the Scratchpad.
*
* @param integer aIndex
* Optional integer: clicked menuitem in the 'Open Recent'-menu.
*/
openFile: function SP_openFile(aIndex)
{
let promptCallback = aFile => {
this.promptSave((aCloseFile, aSaved, aStatus) => {
let shouldOpen = aCloseFile;
if (aSaved && !Components.isSuccessCode(aStatus)) {
shouldOpen = false;
}
if (shouldOpen) {
let file;
if (aFile) {
file = aFile;
} else {
file = Components.classes["@mozilla.org/file/local;1"].
createInstance(Components.interfaces.nsILocalFile);
let filePath = this.getRecentFiles()[aIndex];
file.initWithPath(filePath);
}
if (!file.exists()) {
this.notificationBox.appendNotification(
this.strings.GetStringFromName("fileNoLongerExists.notification"),
"file-no-longer-exists",
null,
this.notificationBox.PRIORITY_WARNING_HIGH,
null);
this.clearFiles(aIndex, 1);
return;
}
this.importFromFile(file, false);
}
});
};
if (aIndex > -1) {
promptCallback();
} else {
let fp = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
fp.init(window, this.strings.GetStringFromName("openFile.title"),
Ci.nsIFilePicker.modeOpen);
fp.defaultString = "";
fp.appendFilter("JavaScript Files", "*.js; *.jsm; *.json");
fp.appendFilter("All Files", "*.*");
fp.open(aResult => {
if (aResult != Ci.nsIFilePicker.returnCancel) {
promptCallback(fp.file);
}
});
}
},
/**
* Get recent files.
*
* @return Array
* File paths.
*/
getRecentFiles: function SP_getRecentFiles()
{
let branch = Services.prefs.getBranch("devtools.scratchpad.");
let filePaths = [];
// WARNING: Do not use getCharPref here, it doesn't play nicely with
// Unicode strings.
if (branch.prefHasUserValue("recentFilePaths")) {
let data = branch.getComplexValue("recentFilePaths",
Ci.nsISupportsString).data;
filePaths = JSON.parse(data);
}
return filePaths;
},
/**
* Save a recent file in a JSON parsable string.
*
* @param nsILocalFile aFile
* The nsILocalFile we want to save as a recent file.
*/
setRecentFile: function SP_setRecentFile(aFile)
{
let maxRecent = Services.prefs.getIntPref(PREF_RECENT_FILES_MAX);
if (maxRecent < 1) {
return;
}
let filePaths = this.getRecentFiles();
let filesCount = filePaths.length;
let pathIndex = filePaths.indexOf(aFile.path);
// We are already storing this file in the list of recent files.
if (pathIndex > -1) {
// If it's already the most recent file, we don't have to do anything.
if (pathIndex === (filesCount - 1)) {
// Updating the menu to clear the disabled state from the wrong menuitem
// in rare cases when two or more Scratchpad windows are open and the
// same file has been opened in two or more windows.
this.populateRecentFilesMenu();
return;
}
// It is not the most recent file. Remove it from the list, we add it as
// the most recent farther down.
filePaths.splice(pathIndex, 1);
}
// If we are not storing the file and the 'recent files'-list is full,
// remove the oldest file from the list.
else if (filesCount === maxRecent) {
filePaths.shift();
}
filePaths.push(aFile.path);
// WARNING: Do not use setCharPref here, it doesn't play nicely with
// Unicode strings.
let str = Cc["@mozilla.org/supports-string;1"]
.createInstance(Ci.nsISupportsString);
str.data = JSON.stringify(filePaths);
let branch = Services.prefs.getBranch("devtools.scratchpad.");
branch.setComplexValue("recentFilePaths",
Ci.nsISupportsString, str);
},
/**
* Populates the 'Open Recent'-menu.
*/
populateRecentFilesMenu: function SP_populateRecentFilesMenu()
{
let maxRecent = Services.prefs.getIntPref(PREF_RECENT_FILES_MAX);
let recentFilesMenu = document.getElementById("sp-open_recent-menu");
if (maxRecent < 1) {
recentFilesMenu.setAttribute("hidden", true);
return;
}
let recentFilesPopup = recentFilesMenu.firstChild;
let filePaths = this.getRecentFiles();
let filename = this.getState().filename;
recentFilesMenu.setAttribute("disabled", true);
while (recentFilesPopup.hasChildNodes()) {
recentFilesPopup.removeChild(recentFilesPopup.firstChild);
}
if (filePaths.length > 0) {
recentFilesMenu.removeAttribute("disabled");
// Print out menuitems with the most recent file first.
for (let i = filePaths.length - 1; i >= 0; --i) {
let menuitem = document.createElement("menuitem");
menuitem.setAttribute("type", "radio");
menuitem.setAttribute("label", filePaths[i]);
if (filePaths[i] === filename) {
menuitem.setAttribute("checked", true);
menuitem.setAttribute("disabled", true);
}
menuitem.addEventListener("command", Scratchpad.openFile.bind(Scratchpad, i));
recentFilesPopup.appendChild(menuitem);
}
recentFilesPopup.appendChild(document.createElement("menuseparator"));
let clearItems = document.createElement("menuitem");
clearItems.setAttribute("id", "sp-menu-clear_recent");
clearItems.setAttribute("label",
this.strings.
GetStringFromName("clearRecentMenuItems.label"));
clearItems.setAttribute("command", "sp-cmd-clearRecentFiles");
recentFilesPopup.appendChild(clearItems);
}
},
/**
* Clear a range of files from the list.
*
* @param integer aIndex
* Index of file in menu to remove.
* @param integer aLength
* Number of files from the index 'aIndex' to remove.
*/
clearFiles: function SP_clearFile(aIndex, aLength)
{
let filePaths = this.getRecentFiles();
filePaths.splice(aIndex, aLength);
// WARNING: Do not use setCharPref here, it doesn't play nicely with
// Unicode strings.
let str = Cc["@mozilla.org/supports-string;1"]
.createInstance(Ci.nsISupportsString);
str.data = JSON.stringify(filePaths);
let branch = Services.prefs.getBranch("devtools.scratchpad.");
branch.setComplexValue("recentFilePaths",
Ci.nsISupportsString, str);
},
/**
* Clear all recent files.
*/
clearRecentFiles: function SP_clearRecentFiles()
{
Services.prefs.clearUserPref("devtools.scratchpad.recentFilePaths");
},
/**
* Handle changes to the 'PREF_RECENT_FILES_MAX'-preference.
*/
handleRecentFileMaxChange: function SP_handleRecentFileMaxChange()
{
let maxRecent = Services.prefs.getIntPref(PREF_RECENT_FILES_MAX);
let menu = document.getElementById("sp-open_recent-menu");
// Hide the menu if the 'PREF_RECENT_FILES_MAX'-pref is set to zero or less.
if (maxRecent < 1) {
menu.setAttribute("hidden", true);
} else {
if (menu.hasAttribute("hidden")) {
if (!menu.firstChild.hasChildNodes()) {
this.populateRecentFilesMenu();
}
menu.removeAttribute("hidden");
}
let filePaths = this.getRecentFiles();
if (maxRecent < filePaths.length) {
let diff = filePaths.length - maxRecent;
this.clearFiles(0, diff);
}
}
},
/**
* 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, aStatus => {
if (Components.isSuccessCode(aStatus)) {
this.dirty = false;
document.getElementById("sp-cmd-revert").setAttribute("disabled", true);
this.setRecentFile(file);
}
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);
let fpCallback = aResult => {
if (aResult != Ci.nsIFilePicker.returnCancel) {
this.setFilename(fp.file.path);
this.exportToFile(fp.file, true, false, aStatus => {
if (Components.isSuccessCode(aStatus)) {
this.dirty = false;
this.setRecentFile(fp.file);
}
if (aCallback) {
aCallback(aStatus);
}
});
}
};
fp.init(window, this.strings.GetStringFromName("saveFileAs"),
Ci.nsIFilePicker.modeSave);
fp.defaultString = "scratchpad.js";
fp.appendFilter("JavaScript Files", "*.js; *.jsm; *.json");
fp.appendFilter("All Files", "*.*");
fp.open(fpCallback);
},
/**
* Restore content from saved version of current file.
*
* @param function aCallback
* Optional function you want to call when file is saved
*/
revertFile: function SP_revertFile(aCallback)
{
let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsILocalFile);
file.initWithPath(this.filename);
if (!file.exists()) {
return;
}
this.importFromFile(file, false, (aStatus, aContent) => {
if (aCallback) {
aCallback(aStatus);
}
});
},
/**
* Prompt to revert scratchpad if it has unsaved changes.
*
* @param function aCallback
* Optional function you want to call when file is saved. The callback
* receives three arguments:
* - aRevert (boolean) - tells if the file has been reverted.
* - status (number) - the file revert status result (if the file was
* saved).
*/
promptRevert: function SP_promptRervert(aCallback)
{
if (this.filename) {
let ps = Services.prompt;
let flags = ps.BUTTON_POS_0 * ps.BUTTON_TITLE_REVERT +
ps.BUTTON_POS_1 * ps.BUTTON_TITLE_CANCEL;
let button = ps.confirmEx(window,
this.strings.GetStringFromName("confirmRevert.title"),
this.strings.GetStringFromName("confirmRevert"),
flags, null, null, null, null, {});
if (button == BUTTON_POSITION_CANCEL) {
if (aCallback) {
aCallback(false);
}
return;
}
if (button == BUTTON_POSITION_REVERT) {
this.revertFile(aStatus => {
if (aCallback) {
aCallback(true, aStatus);
}
});
return;
}
}
if (aCallback) {
aCallback(false);
}
},
/**
* Open the Error Console.
*/
openErrorConsole: function SP_openErrorConsole()
{
this.browserWindow.HUDService.toggleBrowserConsole();
},
/**
* Open the Web Console.
*/
openWebConsole: function SP_openWebConsole()
{
let target = TargetFactory.forTab(this.gBrowser.selectedTab);
gDevTools.showToolbox(target, "webconsole");
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");
document.getElementById("sp-cmd-reloadAndRun").removeAttribute("disabled");
content.setAttribute("checked", true);
this.executionContext = SCRATCHPAD_CONTEXT_CONTENT;
this.notificationBox.removeAllNotifications(false);
},
/**
* 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");
let reloadAndRun = document.getElementById("sp-cmd-reloadAndRun");
document.getElementById("sp-menu-content").removeAttribute("checked");
reloadAndRun.setAttribute("disabled", true);
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);
},
/**
* 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;
},
updateStatusBar: function SP_updateStatusBar(aEventType)
{
var statusBarField = document.getElementById("statusbar-line-col");
let { line, ch } = this.editor.getCursor();
statusBarField.textContent = this.strings.formatStringFromName(
"scratchpad.statusBarLineCol", [ line + 1, ch + 1], 2);
},
/**
* 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 initialText = this.strings.formatStringFromName(
"scratchpadIntro1",
[ShortcutUtils.prettifyShortcut(document.getElementById("sp-key-run"), true),
ShortcutUtils.prettifyShortcut(document.getElementById("sp-key-inspect"), true),
ShortcutUtils.prettifyShortcut(document.getElementById("sp-key-display"), true)],
3);
let args = window.arguments;
let state = null;
if (args && args[0] instanceof Ci.nsIDialogParamBlock) {
args = args[0];
this._instanceId = args.GetString(0);
state = args.GetString(1) || null;
if (state) {
state = JSON.parse(state);
this.setState(state);
initialText = state.text;
}
} else {
this._instanceId = ScratchpadManager.createUid();
}
let config = {
mode: Editor.modes.js,
value: initialText,
lineNumbers: true,
contextMenu: "scratchpad-text-popup",
showTrailingSpace: Services.prefs.getBoolPref(SHOW_TRAILING_SPACE),
autocomplete: Services.prefs.getBoolPref(ENABLE_AUTOCOMPLETION),
};
this.editor = new Editor(config);
let editorElement = document.querySelector("#scratchpad-editor");
this.editor.appendTo(editorElement).then(() => {
var lines = initialText.split("\n");
this.editor.on("change", this._onChanged);
// Keep a reference to the bound version for use in onUnload.
this.updateStatusBar = Scratchpad.updateStatusBar.bind(this);
this.editor.on("cursorActivity", this.updateStatusBar);
let okstring = this.strings.GetStringFromName("selfxss.okstring");
let msg = this.strings.formatStringFromName("selfxss.msg", [okstring], 1);
this._onPaste = WebConsoleUtils.pasteHandlerGen(this.editor.container.contentDocument.body,
document.querySelector('#scratchpad-notificationbox'),
msg, okstring);
editorElement.addEventListener("paste", this._onPaste);
editorElement.addEventListener("drop", this._onPaste);
this.editor.on("save", () => this.saveFile());
this.editor.focus();
this.editor.setCursor({ line: lines.length, ch: lines.pop().length });
if (state)
this.dirty = !state.saved;
this.initialized = true;
this._triggerObservers("Ready");
this.populateRecentFilesMenu();
PreferenceObserver.init();
CloseObserver.init();
}).then(null, (err) => console.error(err));
this._setupCommandListeners();
this._setupPopupShowingListeners();
},
/**
* The Source Editor "change" event handler. This function updates the
* Scratchpad window title to show an asterisk when there are unsaved changes.
*
* @private
*/
_onChanged: function SP__onChanged()
{
Scratchpad._updateTitle();
if (Scratchpad.filename) {
if (Scratchpad.dirty)
document.getElementById("sp-cmd-revert").removeAttribute("disabled");
else
document.getElementById("sp-cmd-revert").setAttribute("disabled", true);
}
},
/**
* 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 event is created only after user uses 'reload and run' feature.
if (this._reloadAndRunEvent && this.gBrowser) {
this.gBrowser.selectedBrowser.removeEventListener("load",
this._reloadAndRunEvent, true);
}
PreferenceObserver.uninit();
CloseObserver.uninit();
if (this._onPaste) {
let editorElement = document.querySelector("#scratchpad-editor");
editorElement.removeEventListener("paste", this._onPaste);
editorElement.removeEventListener("drop", this._onPaste);
this._onPaste = null;
}
this.editor.off("change", this._onChanged);
this.editor.off("cursorActivity", this.updateStatusBar);
this.editor.destroy();
this.editor = null;
if (this._sidebar) {
this._sidebar.destroy();
this._sidebar = null;
}
if (this._prettyPrintWorker) {
this._prettyPrintWorker.terminate();
this._prettyPrintWorker = null;
}
scratchpadTargets = null;
this.webConsoleClient = null;
this.debuggerClient = 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.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(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
* @param function aCallback
* Optional function you want to call when file is saved/closed.
* Used mainly for tests.
*/
onClose: function SP_onClose(aEvent, aCallback)
{
aEvent.preventDefault();
this.close(aCallback);
},
/**
* 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)
{
let shouldClose;
this.promptSave((aShouldClose, aSaved, aStatus) => {
shouldClose = aShouldClose;
if (aSaved && !Components.isSuccessCode(aStatus)) {
shouldClose = false;
}
if (shouldClose) {
telemetry.toolClosed("scratchpad");
window.close();
}
if (aCallback) {
aCallback(shouldClose);
}
});
return shouldClose;
},
/**
* Toggle a editor's boolean option.
*/
toggleEditorOption: function SP_toggleEditorOption(optionName)
{
let newOptionValue = !this.editor.getOption(optionName);
this.editor.setOption(optionName, newOptionValue);
},
/**
* Increase the editor's font size by 1 px.
*/
increaseFontSize: function SP_increaseFontSize()
{
let size = this.editor.getFontSize();
if (size < MAXIMUM_FONT_SIZE) {
this.editor.setFontSize(size + 1);
}
},
/**
* Decrease the editor's font size by 1 px.
*/
decreaseFontSize: function SP_decreaseFontSize()
{
let size = this.editor.getFontSize();
if (size > MINIMUM_FONT_SIZE) {
this.editor.setFontSize(size - 1);
}
},
/**
* Restore the editor's original font size.
*/
normalFontSize: function SP_normalFontSize()
{
this.editor.setFontSize(NORMAL_FONT_SIZE);
},
_observers: [],
/**
* Add an observer for Scratchpad events.
*
* The observer implements IScratchpadObserver := {
* onReady: Called when the Scratchpad and its Editor 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);
}
}
},
/**
* Opens the MDN documentation page for Scratchpad.
*/
openDocumentationPage: function SP_openDocumentationPage()
{
let url = this.strings.GetStringFromName("help.openDocumentationPage");
let newTab = this.gBrowser.addTab(url);
this.browserWindow.focus();
this.gBrowser.selectedTab = newTab;
},
};
/**
* Represents the DebuggerClient connection to a specific tab as used by the
* Scratchpad.
*
* @param object aTab
* The tab to connect to.
*/
function ScratchpadTab(aTab)
{
this._tab = aTab;
}
let scratchpadTargets = new WeakMap();
/**
* Returns the object containing the DebuggerClient and WebConsoleClient for a
* given tab or window.
*
* @param object aSubject
* The tab or window to obtain the connection for.
* @return Promise
* The promise for the connection information.
*/
ScratchpadTab.consoleFor = function consoleFor(aSubject)
{
if (!scratchpadTargets.has(aSubject)) {
scratchpadTargets.set(aSubject, new this(aSubject));
}
return scratchpadTargets.get(aSubject).connect(aSubject);
};
ScratchpadTab.prototype = {
/**
* The promise for the connection.
*/
_connector: null,
/**
* Initialize a debugger client and connect it to the debugger server.
*
* @param object aSubject
* The tab or window to obtain the connection for.
* @return Promise
* The promise for the result of connecting to this tab or window.
*/
connect: function ST_connect(aSubject)
{
if (this._connector) {
return this._connector;
}
let deferred = promise.defer();
this._connector = deferred.promise;
let connectTimer = setTimeout(() => {
deferred.reject({
error: "timeout",
message: Scratchpad.strings.GetStringFromName("connectionTimeout"),
});
}, REMOTE_TIMEOUT);
deferred.promise.then(() => clearTimeout(connectTimer));
this._attach(aSubject).then(aTarget => {
let consoleActor = aTarget.form.consoleActor;
let client = aTarget.client;
client.attachConsole(consoleActor, [], (aResponse, aWebConsoleClient) => {
if (aResponse.error) {
reportError("attachConsole", aResponse);
deferred.reject(aResponse);
}
else {
deferred.resolve({
webConsoleClient: aWebConsoleClient,
debuggerClient: client
});
}
});
});
return deferred.promise;
},
/**
* Attach to this tab.
*
* @param object aSubject
* The tab or window to obtain the connection for.
* @return Promise
* The promise for the TabTarget for this tab.
*/
_attach: function ST__attach(aSubject)
{
let target = TargetFactory.forTab(this._tab);
target.once("close", () => {
if (scratchpadTargets) {
scratchpadTargets.delete(aSubject);
}
});
return target.makeRemote().then(() => target);
},
};
/**
* Represents the DebuggerClient connection to a specific window as used by the
* Scratchpad.
*/
function ScratchpadWindow() {}
ScratchpadWindow.consoleFor = ScratchpadTab.consoleFor;
ScratchpadWindow.prototype = Heritage.extend(ScratchpadTab.prototype, {
/**
* Attach to this window.
*
* @return Promise
* The promise for the target for this window.
*/
_attach: function SW__attach()
{
let deferred = promise.defer();
if (!DebuggerServer.initialized) {
DebuggerServer.init();
DebuggerServer.addBrowserActors();
}
let client = new DebuggerClient(DebuggerServer.connectPipe());
client.connect(() => {
client.listTabs(aResponse => {
if (aResponse.error) {
reportError("listTabs", aResponse);
deferred.reject(aResponse);
}
else {
deferred.resolve({ form: aResponse, client: client });
}
});
});
return deferred.promise;
}
});
function ScratchpadTarget(aTarget)
{
this._target = aTarget;
}
ScratchpadTarget.consoleFor = ScratchpadTab.consoleFor;
ScratchpadTarget.prototype = Heritage.extend(ScratchpadTab.prototype, {
_attach: function ST__attach()
{
if (this._target.isRemote) {
return promise.resolve(this._target);
}
return this._target.makeRemote().then(() => this._target);
}
});
/**
* Encapsulates management of the sidebar containing the VariablesView for
* object inspection.
*/
function ScratchpadSidebar(aScratchpad)
{
// Make sure to decorate this object. ToolSidebar requires the parent
// panel to support event (emit) API.
EventEmitter.decorate(this);
let ToolSidebar = require("devtools/framework/sidebar").ToolSidebar;
let tabbox = document.querySelector("#scratchpad-sidebar");
this._sidebar = new ToolSidebar(tabbox, this, "scratchpad");
this._scratchpad = aScratchpad;
}
ScratchpadSidebar.prototype = {
/*
* The ToolSidebar for this sidebar.
*/
_sidebar: null,
/*
* The VariablesView for this sidebar.
*/
variablesView: null,
/*
* Whether the sidebar is currently shown.
*/
visible: false,
/**
* Open the sidebar, if not open already, and populate it with the properties
* of the given object.
*
* @param string aString
* The string that was evaluated.
* @param object aObject
* The object to inspect, which is the aEvalString evaluation result.
* @return Promise
* A promise that will resolve once the sidebar is open.
*/
open: function SS_open(aEvalString, aObject)
{
this.show();
let deferred = promise.defer();
let onTabReady = () => {
if (this.variablesView) {
this.variablesView.controller.releaseActors();
}
else {
let window = this._sidebar.getWindowForTab("variablesview");
let container = window.document.querySelector("#variables");
this.variablesView = new VariablesView(container, {
searchEnabled: true,
searchPlaceholder: this._scratchpad.strings
.GetStringFromName("propertiesFilterPlaceholder")
});
VariablesViewController.attach(this.variablesView, {
getEnvironmentClient: aGrip => {
return new EnvironmentClient(this._scratchpad.debuggerClient, aGrip);
},
getObjectClient: aGrip => {
return new ObjectClient(this._scratchpad.debuggerClient, aGrip);
},
getLongStringClient: aActor => {
return this._scratchpad.webConsoleClient.longString(aActor);
},
releaseActor: aActor => {
this._scratchpad.debuggerClient.release(aActor);
}
});
}
this._update(aObject).then(() => deferred.resolve());
};
if (this._sidebar.getCurrentTabID() == "variablesview") {
onTabReady();
}
else {
this._sidebar.once("variablesview-ready", onTabReady);
this._sidebar.addTab("variablesview", VARIABLES_VIEW_URL, true);
}
return deferred.promise;
},
/**
* Show the sidebar.
*/
show: function SS_show()
{
if (!this.visible) {
this.visible = true;
this._sidebar.show();
}
},
/**
* Hide the sidebar.
*/
hide: function SS_hide()
{
if (this.visible) {
this.visible = false;
this._sidebar.hide();
}
},
/**
* Destroy the sidebar.
*
* @return Promise
* The promise that resolves when the sidebar is destroyed.
*/
destroy: function SS_destroy()
{
if (this.variablesView) {
this.variablesView.controller.releaseActors();
this.variablesView = null;
}
return this._sidebar.destroy();
},
/**
* Update the object currently inspected by the sidebar.
*
* @param any aValue
* The JS value to inspect in the sidebar.
* @return Promise
* A promise that resolves when the update completes.
*/
_update: function SS__update(aValue)
{
let options, onlyEnumVisible;
if (VariablesView.isPrimitive({ value: aValue })) {
options = { rawObject: { value: aValue } };
onlyEnumVisible = true;
} else {
options = { objectActor: aValue };
onlyEnumVisible = false;
}
let view = this.variablesView;
view.onlyEnumVisible = onlyEnumVisible;
view.empty();
return view.controller.setSingleVariable(options).expanded;
}
};
/**
* Report an error coming over the remote debugger protocol.
*
* @param string aAction
* The name of the action or method that failed.
* @param object aResponse
* The response packet that contains the error.
*/
function reportError(aAction, aResponse)
{
Cu.reportError(aAction + " failed: " + aResponse.error + " " +
aResponse.message);
}
/**
* The PreferenceObserver listens for preference changes while Scratchpad is
* running.
*/
var PreferenceObserver = {
_initialized: false,
init: function PO_init()
{
if (this._initialized) {
return;
}
this.branch = Services.prefs.getBranch("devtools.scratchpad.");
this.branch.addObserver("", this, false);
this._initialized = true;
},
observe: function PO_observe(aMessage, aTopic, aData)
{
if (aTopic != "nsPref:changed") {
return;
}
if (aData == "recentFilesMax") {
Scratchpad.handleRecentFileMaxChange();
}
else if (aData == "recentFilePaths") {
Scratchpad.populateRecentFilesMenu();
}
},
uninit: function PO_uninit () {
if (!this.branch) {
return;
}
this.branch.removeObserver("", this);
this.branch = null;
}
};
/**
* The CloseObserver listens for the last browser window closing and attempts to
* close the Scratchpad.
*/
var CloseObserver = {
init: function CO_init()
{
Services.obs.addObserver(this, "browser-lastwindow-close-requested", false);
},
observe: function CO_observe(aSubject)
{
if (Scratchpad.close()) {
this.uninit();
}
else {
aSubject.QueryInterface(Ci.nsISupportsPRBool);
aSubject.data = true;
}
},
uninit: function CO_uninit()
{
// Will throw exception if removeObserver is called twice.
if (this._uninited) {
return;
}
this._uninited = true;
Services.obs.removeObserver(this, "browser-lastwindow-close-requested",
false);
},
};
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);