Bug 706351 - Add support for Console API r=mbrubeck

mobile/android/chrome/content/browser.js

@@ -198,6 +198,7 @@ var BrowserApp = {
     OfflineApps.init();
     IndexedDB.init();
     XPInstallObserver.init();
+    ConsoleAPI.init();
 
     // Init LoginManager
     Cc["@mozilla.org/login-manager;1"].getService(Ci.nsILoginManager);
@@ -259,6 +260,7 @@ var BrowserApp = {
     IndexedDB.uninit();
     ViewportHandler.uninit();
     XPInstallObserver.uninit();
+    ConsoleAPI.uninit();
   },
 
   get tabs() {
@@ -2550,3 +2552,110 @@ var IndexedDB = {
     NativeWindow.doorhanger.show(message, notificationID, buttons, tab.id);
   }
 };
+
+var ConsoleAPI = {
+  init: function init() {
+    Services.obs.addObserver(this, "console-api-log-event", false);
+  },
+
+  uninit: function uninit() {
+    Services.obs.removeObserver(this, "console-api-log-event", false);
+  },
+
+  observe: function observe(aMessage, aTopic, aData) {
+    aMessage = aMessage.wrappedJSObject;
+
+    let mappedArguments = Array.map(aMessage.arguments, this.formatResult, this);
+    let joinedArguments = Array.join(mappedArguments, " ");
+
+    if (aMessage.level == "error" || aMessage.level == "warn") {
+      let flag = (aMessage.level == "error" ? Ci.nsIScriptError.errorFlag : Ci.nsIScriptError.warningFlag);
+      let consoleMsg = Cc["@mozilla.org/scripterror;1"].createInstance(Ci.nsIScriptError);
+      consoleMsg.init(joinedArguments, null, null, 0, 0, flag, "content javascript");
+      Services.console.logMessage(consoleMsg);
+    } else if (aMessage.level == "trace") {
+      let bundle = Services.strings.createBundle("chrome://browser/locale/browser.properties");
+      let args = aMessage.arguments;
+      let filename = this.abbreviateSourceURL(args[0].filename);
+      let functionName = args[0].functionName || bundle.GetStringFromName("stacktrace.anonymousFunction");
+      let lineNumber = args[0].lineNumber;
+
+      let body = bundle.formatStringFromName("stacktrace.outputMessage", [filename, functionName, lineNumber], 3);
+      body += "\n";
+      args.forEach(function(aFrame) {
+        let functionName = aFrame.functionName || bundle.GetStringFromName("stacktrace.anonymousFunction");
+        body += "  " + aFrame.filename + " :: " + functionName + " :: " + aFrame.lineNumber + "\n";
+      });
+
+      Services.console.logStringMessage(body);
+    } else if (aMessage.level == "time" && aMessage.arguments) {
+      let bundle = Services.strings.createBundle("chrome://browser/locale/browser.properties");
+      let body = bundle.formatStringFromName("timer.start", [aMessage.arguments.name], 1);
+      Services.console.logStringMessage(body);
+    } else if (aMessage.level == "timeEnd" && aMessage.arguments) {
+      let bundle = Services.strings.createBundle("chrome://browser/locale/browser.properties");
+      let body = bundle.formatStringFromName("timer.end", [aMessage.arguments.name, aMessage.arguments.duration], 2);
+      Services.console.logStringMessage(body);
+    } else if (["group", "groupCollapsed", "groupEnd"].indexOf(aMessage.level) != -1) {
+      // Do nothing yet
+    } else {
+      Services.console.logStringMessage(joinedArguments);
+    }
+  },
+
+  getResultType: function getResultType(aResult) {
+    let type = aResult === null ? "null" : typeof aResult;
+    if (type == "object" && aResult.constructor && aResult.constructor.name)
+      type = aResult.constructor.name;
+    return type.toLowerCase();
+  },
+
+  formatResult: function formatResult(aResult) {
+    let output = "";
+    let type = this.getResultType(aResult);
+    switch (type) {
+      case "string":
+      case "boolean":
+      case "date":
+      case "error":
+      case "number":
+      case "regexp":
+        output = aResult.toString();
+        break;
+      case "null":
+      case "undefined":
+        output = type;
+        break;
+      default:
+        if (aResult.toSource) {
+          try {
+            output = aResult.toSource();
+          } catch (ex) { }
+        }
+        if (!output || output == "({})") {
+          output = aResult.toString();
+        }
+        break;
+    }
+
+    return output;
+  },
+
+  abbreviateSourceURL: function abbreviateSourceURL(aSourceURL) {
+    // Remove any query parameters.
+    let hookIndex = aSourceURL.indexOf("?");
+    if (hookIndex > -1)
+      aSourceURL = aSourceURL.substring(0, hookIndex);
+
+    // Remove a trailing "/".
+    if (aSourceURL[aSourceURL.length - 1] == "/")
+      aSourceURL = aSourceURL.substring(0, aSourceURL.length - 1);
+
+    // Remove all but the last path component.
+    let slashIndex = aSourceURL.lastIndexOf("/");
+    if (slashIndex > -1)
+      aSourceURL = aSourceURL.substring(slashIndex + 1);
+
+    return aSourceURL;
+  }
+};

mobile/android/locales/en-US/chrome/browser.properties

@@ -250,16 +250,26 @@ browser.menu.showCharacterEncoding=false
 # values for charsets that the user can select from in the Character Encoding menu.
 intl.charsetmenu.browser.static=iso-8859-1,utf-8,x-gbk,big5,iso-2022-jp,shift_jis,euc-jp
 
-#Application Menu
+# Application Menu
 appMenu.more=More
 
-#Text Selection
+# Text Selection
 selectionHelper.textCopied=Text copied to clipboard
 
-#Context menu
+# Context menu
 contextmenu.openInNewTab=Open Link in New Tab
 contextmenu.changeInputMethod=Select Input Method
 contextmenu.fullScreen=Full Screen
 
-#Select UI
+# Select UI
 selectHelper.closeMultipleSelectDialog=Done
+
+# Web Console API
+stacktrace.anonymousFunction=<anonymous>
+stacktrace.outputMessage=Stack trace from %S, function %S, line %S.
+timer.start=%S: timer started
+
+# LOCALIZATION NOTE (timer.end):
+# This string is used to display the result of the console.timeEnd() call.
+# %1$S=name of timer, %2$S=number of milliseconds
+timer.end=%1$S: %2$Sms