The Tor Browser: browser/metro/base/content/console.js@7e26c7da4463 (annotated)

browser/metro/base/content/console.js@7e26c7da4463 (annotated)

browser/metro/base/content/console.js

Wed, 31 Dec 2014 06:55:50 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:55:50 +0100
changeset 2: 7e26c7da4463
permissions: -rw-r--r--

Added tag UPSTREAM_283F7C6 for changeset ca08bd8f51b2

 // -*- Mode: js2; tab-width: 2; indent-tabs-mode: nil; js2-basic-offset: 2; js2-skip-preprocessor-directives: t; -*-
 /* 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/. */
 let ConsolePanelView = {
   _list: null,
   _inited: false,
   _evalTextbox: null,
   _evalFrame: null,
   _evalCode: "",
   _bundle: null,
   _showChromeErrors: -1,
   _enabledPref: "devtools.errorconsole.enabled",
   get enabled() {
     return Services.prefs.getBoolPref(this._enabledPref);
   },
   get follow() {
     return document.getElementById("console-follow-checkbox").checked;
   },
   init: function cv_init() {
     if (this._list)
       return;
     this._list = document.getElementById("console-box");
     this._evalTextbox = document.getElementById("console-eval-textbox");
     this._bundle = Strings.browser;
     this._count = 0;
     this.limit = 250;
     this.fieldMaxLength = 140;
     try {
       // update users using the legacy pref
       if (Services.prefs.getBoolPref("browser.console.showInPanel")) {
         Services.prefs.setBoolPref(this._enabledPref, true);
         Services.prefs.clearUserPref("browser.console.showInPanel");
       }
     } catch(ex) {
       // likely don't have an old pref
     }
     Services.prefs.addObserver(this._enabledPref, this, false);
   },
   show: function show() {
     if (this._inited)
       return;
     this._inited = true;
     this.init(); // In case the panel is selected before init has been called.
     Services.console.registerListener(this);
     this.appendInitialItems();
     // Delay creation of the iframe for startup performance
     this._evalFrame = document.createElement("iframe");
     this._evalFrame.id = "console-evaluator";
     this._evalFrame.collapsed = true;
     document.getElementById("console-container").appendChild(this._evalFrame);
     this._evalFrame.addEventListener("load", this.loadOrDisplayResult.bind(this), true);
   },
   uninit: function cv_uninit() {
     if (this._inited)
       Services.console.unregisterListener(this);
     Services.prefs.removeObserver(this._enabledPref, this, false);
   },
   observe: function(aSubject, aTopic, aData) {
     if (aTopic == "nsPref:changed") {
       // We may choose to create a new menu in v2
       }
     else
       this.appendItem(aSubject);
   },
   showChromeErrors: function() {
     if (this._showChromeErrors != -1)
       return this._showChromeErrors;
     try {
       let pref = Services.prefs;
       return this._showChromeErrors = pref.getBoolPref("javascript.options.showInConsole");
     }
     catch(ex) {
       return this._showChromeErrors = false;
     }
   },
   appendItem: function cv_appendItem(aObject) {
     let index = -1;
     try {
       // Try to QI it to a script error to get more info
       let scriptError = aObject.QueryInterface(Ci.nsIScriptError);
       // filter chrome urls
       if (!this.showChromeErrors && scriptError.sourceName.substr(0, 9) == "chrome://")
         return;
       index = this.appendError(scriptError);
     }
     catch (ex) {
       try {
         // Try to QI it to a console message
         let msg = aObject.QueryInterface(Ci.nsIConsoleMessage);
         if (msg.message)
           index = this.appendMessage(msg.message);
         else // observed a null/"clear" message
           this.clearConsole();
       }
       catch (ex2) {
         // Give up and append the object itself as a string
         index = this.appendMessage(aObject);
       }
     }
     if (this.follow) {
       this._list.ensureIndexIsVisible(index);
     }
   },
   truncateIfNecessary: function (aString) {
     if (!aString || aString.length <= this.fieldMaxLength) {
       return aString;
     }
     let truncatedString = aString.substring(0, this.fieldMaxLength);
     let Ci = Components.interfaces;
     let ellipsis = Services.prefs.getComplexValue("intl.ellipsis",
                                                   Ci.nsIPrefLocalizedString).data;
     truncatedString = truncatedString + ellipsis;
     return truncatedString;
   },
   appendError: function cv_appendError(aObject) {
     let row = this.createConsoleRow();
     let nsIScriptError = Ci.nsIScriptError;
     // Is this error actually just a non-fatal warning?
     let warning = aObject.flags & nsIScriptError.warningFlag != 0;
     let typetext = warning ? "typeWarning" : "typeError";
     row.setAttribute("typetext", this._bundle.GetStringFromName(typetext));
     row.setAttribute("type", warning ? "warning" : "error");
     row.setAttribute("msg", aObject.errorMessage);
     row.setAttribute("category", aObject.category);
     if (aObject.lineNumber || aObject.sourceName) {
       row.setAttribute("href", aObject.sourceName);
       row.setAttribute("line", aObject.lineNumber);
     }
     else {
       row.setAttribute("hideSource", "true");
     }
     // hide code by default, otherwise initial item display will
     // hang the browser.
     row.setAttribute("hideCode", "true");
     row.setAttribute("hideCaret", "true");
     if (aObject.sourceLine) {
       row.setAttribute("code", this.truncateIfNecessary(aObject.sourceLine.replace(/\s/g, " ")));
       if (aObject.columnNumber) {
         row.setAttribute("col", aObject.columnNumber);
       }
     }
     let mode = document.getElementById("console-filter").value;
     if (mode != "all" && mode != row.getAttribute("type")) {
       row.collapsed = true;
     }
     row.setAttribute("onclick", "ConsolePanelView.onRowClick(this)");
     this.appendConsoleRow(row);
     return this._list.getIndexOfItem(row);
   },
   appendMessage: function cv_appendMessage (aMessage) {
     let row = this.createConsoleRow();
     row.setAttribute("type", "message");
     row.setAttribute("msg", aMessage);
     let mode = document.getElementById("console-filter").value;
     if (mode != "all" && mode != "message")
       row.collapsed = true;
     this.appendConsoleRow(row);
     return this._list.getIndexOfItem(row);
   },
   createConsoleRow: function cv_createConsoleRow() {
     let row = document.createElement("richlistitem");
     row.setAttribute("class", "console-row");
     return row;
   },
   appendConsoleRow: function cv_appendConsoleRow(aRow) {
     this._list.appendChild(aRow);
     if (++this._count > this.limit) {
       this.deleteFirst();
     }
   },
   deleteFirst: function cv_deleteFirst() {
     let node = this._list.firstChild;
     this._list.removeChild(node);
     --this._count;
   },
   appendInitialItems: function cv_appendInitialItems() {
     this._list.collapsed = true;
     let messages = Services.console.getMessageArray();
     // In case getMessageArray returns 0-length array as null
     if (!messages)
       messages = [];
     let limit = messages.length - this.limit;
     if (limit < 0)
       limit = 0;
     // Checks if console ever been cleared
     for (var i = messages.length - 1; i >= limit; --i) {
       if (!messages[i].message) {
         break;
       }
     }
     // Populate with messages after latest "clear"
     while (++i < messages.length) {
       this.appendItem(messages[i]);
     }
     this._list.collapsed = false;
   },
   clearConsole: function cv_clearConsole() {
     if (this._count == 0) // already clear
       return;
     this._count = 0;
     let newRows = this._list.cloneNode(false);
     this._list.parentNode.replaceChild(newRows, this._list);
     this._list = newRows;
     this.selectedItem = null;
   },
   copyAll: function () {
     let mode = document.getElementById("console-filter").value;
     let rows = this._list.childNodes;
     let copyText = "";
     for (let i=0; i < rows.length; i++) {
       let row = rows[i];
       if (mode == "all" || row.getAttribute ("type") == mode) {
         let text = "* " + row.getAttribute("msg");
         if (row.hasAttribute("href")) {
           text += "\r\n " + row.getAttribute("href") + " line:" + row.getAttribute("line");
         }
         if (row.hasAttribute("code")) {
           text += "\r\n " + row.getAttribute("code") + " col:" + row.getAttribute("col");
         }
         copyText += text + "\r\n";
       }
     }
     let clip = Cc["@mozilla.org/widget/clipboardhelper;1"].getService(Ci.nsIClipboardHelper);
     clip.copyString(copyText, document);
   },
   changeMode: function cv_changeMode() {
     let mode = document.getElementById("console-filter").value;
     if (this._list.getAttribute("mode") != mode) {
       let rows = this._list.childNodes;
       for (let i=0; i < rows.length; i++) {
         let row = rows[i];
         if (mode == "all" || row.getAttribute ("type") == mode)
           row.collapsed = false;
         else
           row.collapsed = true;
       }
       this._list.mode = mode;
       this._list.scrollToIndex(0);
     }
   },
   onContextMenu: function cv_onContextMenu(aEvent) {
     let row = aEvent.target;
     let text = ["msg", "href", "line", "code", "col"].map(function(attr) row.getAttribute(attr))
                .filter(function(x) x).join("\r\n");
     ContextMenuUI.showContextMenu({
       target: row,
       json: {
         types: ["copy"],
         string: text,
         xPos: aEvent.clientX,
         yPos: aEvent.clientY
       }
     });
   },
   onRowClick: function (aRow) {
     if (aRow.hasAttribute("code")) {
       aRow.setAttribute("hideCode", "false");
     }
     if (aRow.hasAttribute("col")) {
       aRow.setAttribute("hideCaret", "false");
     }
   },
   onEvalKeyPress: function cv_onEvalKeyPress(aEvent) {
     if (aEvent.keyCode == 13)
       this.evaluateTypein();
   },
   onConsoleBoxKeyPress: function cv_onConsoleBoxKeyPress(aEvent) {
     if ((aEvent.charCode == 99 || aEvent.charCode == 67) && aEvent.ctrlKey && this._list && this._list.selectedItem) {
       let clipboard = Cc["@mozilla.org/widget/clipboardhelper;1"].getService(Ci.nsIClipboardHelper);
       clipboard.copyString(this._list.selectedItem.getAttribute("msg"), document);
     }
   },
   evaluateTypein: function cv_evaluateTypein() {
     this._evalCode = this._evalTextbox.value;
     this.loadOrDisplayResult();
   },
   loadOrDisplayResult: function cv_loadOrDisplayResult() {
     if (this._evalCode) {
       this._evalFrame.contentWindow.location = "javascript: " + this._evalCode.replace(/%/g, "%25");
       this._evalCode = "";
       return;
     }
     let resultRange = this._evalFrame.contentDocument.createRange();
     resultRange.selectNode(this._evalFrame.contentDocument.documentElement);
     let result = resultRange.toString();
     if (result)
       Services.console.logStringMessage(result);
       // or could use appendMessage which doesn't persist
   },
   repeatChar: function cv_repeatChar(aChar, aCol) {
     if (--aCol <= 0)
       return "";
     for (let i = 2; i < aCol; i += i)
       aChar += aChar;
     return aChar + aChar.slice(0, aCol - aChar.length);
   }
 };