[DevTools] Typed events and event listeners.

third_party/WebKit/Source/devtools/front_end/sources/TabbedEditorContainer.js

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  * 1. Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *
@@ skipping 43 matching lines @@
     this._tabbedPane = new UI.TabbedPane();
     this._tabbedPane.setPlaceholderText(placeholderText);
     this._tabbedPane.setTabDelegate(new Sources.EditorContainerTabDelegate(this));
 
     this._tabbedPane.setCloseableTabs(true);
     this._tabbedPane.setAllowTabReorder(true, true);
 
     this._tabbedPane.addEventListener(UI.TabbedPane.Events.TabClosed, this._tabClosed, this);
     this._tabbedPane.addEventListener(UI.TabbedPane.Events.TabSelected, this._tabSelected, this);
 
-    Persistence.persistence.addEventListener(
-        Persistence.Persistence.Events.BindingCreated, this._onBindingCreated, this);
-    Persistence.persistence.addEventListener(
-        Persistence.Persistence.Events.BindingRemoved, this._onBindingRemoved, this);
+    Persistence.persistence.addEventListener(Persistence.Persistence.BindingChangedEvent, this._onBindingChanged, this);
 
     this._tabIds = new Map();
     this._files = {};
 
     this._previouslyViewedFilesSetting = setting;
     this._history = Sources.TabbedEditorContainer.History.fromObject(this._previouslyViewedFilesSetting.get());
   }
 
   /**
-   * @param {!Common.Event} event
+   * @param {!Persistence.Persistence.BindingChangedEvent} event
    */
-  _onBindingCreated(event) {
-    var binding = /** @type {!Persistence.PersistenceBinding} */ (event.data);
+  _onBindingChanged(event) {
+    if (event.created)
+      this._onBindingCreated(event.binding);
+    else
+      this._onBindingRemoved(event.binding);
+  }
+
+  /**
+   * @param {!Persistence.PersistenceBinding} binding
+   */
+  _onBindingCreated(binding) {
     this._updateFileTitle(binding.network);
 
     var networkTabId = this._tabIds.get(binding.network);
     var fileSystemTabId = this._tabIds.get(binding.fileSystem);
     if (!fileSystemTabId)
       return;
 
     var wasSelectedInFileSystem = this._currentFile === binding.fileSystem;
     var currentSelectionRange = this._history.selectionRange(binding.fileSystem.url());
     var currentScrollLineNumber = this._history.scrollLineNumber(binding.fileSystem.url());
 
     var tabIndex = this._tabbedPane.tabIndex(fileSystemTabId);
     var tabsToClose = [fileSystemTabId];
     if (networkTabId)
       tabsToClose.push(networkTabId);
     this._closeTabs(tabsToClose, true);
     networkTabId = this._appendFileTab(binding.network, false, tabIndex);
     this._updateHistory();
 
     if (wasSelectedInFileSystem)
       this._tabbedPane.selectTab(networkTabId, false);
 
     var networkTabView = /** @type {!UI.Widget} */ (this._tabbedPane.tabView(networkTabId));
     this._restoreEditorProperties(networkTabView, currentSelectionRange, currentScrollLineNumber);
   }
 
   /**
-   * @param {!Common.Event} event
+   * @param {!Persistence.PersistenceBinding} binding
    */
-  _onBindingRemoved(event) {
-    var binding = /** @type {!Persistence.PersistenceBinding} */ (event.data);
+  _onBindingRemoved(binding) {
     this._updateFileTitle(binding.network);
 
     var networkTabId = this._tabIds.get(binding.network);
     if (!networkTabId)
       return;
 
     var tabIndex = this._tabbedPane.tabIndex(networkTabId);
     var wasSelected = this._currentFile === binding.network;
     var fileSystemTabId = this._appendFileTab(binding.fileSystem, false, tabIndex);
     this._updateHistory();
@@ skipping 698 matching lines @@
 
   /**
    * @override
    * @param {string} tabId
    * @param {!UI.ContextMenu} contextMenu
    */
   onContextMenu(tabId, contextMenu) {
     this._editorContainer._onContextMenu(tabId, contextMenu);
   }
 };