[Android WebView] AwContentsClient.shouldCreate window callback part 2.

android_webview/browser/aw_contents_io_thread_client.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ANDROID_WEBVIEW_BROWSER_AW_CONTENTS_IO_THREAD_CLIENT_H_
 #define ANDROID_WEBVIEW_BROWSER_AW_CONTENTS_IO_THREAD_CLIENT_H_
 
 #include "base/memory/scoped_ptr.h"
 
 class GURL;
@@ skipping 25 matching lines @@
  public:
   virtual ~AwContentsIoThreadClient() {}
 
   // This will attempt to fetch the AwContentsIoThreadClient for the given
   // |render_process_id|, |render_view_id| pair.
   // This method can be called from any thread.
   // An empty scoped_ptr is a valid return value.
   static scoped_ptr<AwContentsIoThreadClient> FromID(int render_process_id,
                                                      int render_view_id);
 
+  // Notifies registered observers when an AwIoThreadClient is registerd
+  // for the specified |child_id| and |route_id|. Invoked on the thread
+  // that the Observer was registered on.
+  class ReadyObserver {
+   public:
+    virtual void OnIoThreadClientReady(int child_id, int route_id) = 0;

[joth, 2012/11/16 21:52:57]

protected virtual d'tor.

[benm (inactive), 2012/11/28 20:00:05]

Done.

+  };
+
+  // Add/remove an observer that will be notified as AwIoThreadClients
+  // are registered.
+  static void AddReadyObserver(ReadyObserver* obs);
+  static void RemoveReadyObserver(ReadyObserver* obs);

[joth, 2012/11/16 21:52:57]

document which thread these must be called on, and which thread you'll receive
the callback on.

[benm (inactive), 2012/11/28 20:00:05]

Would do, but I think I'm going to go with your suggestion of keeping the map
"dumb" and have AwContents call into the AwResourceDispatcherHostDelegate. For
completeness though, you can call on any thread and you will be called back on
the thread that you call on.

+
   // This method is called on the IO thread only.
   virtual scoped_ptr<InterceptedRequestData> ShouldInterceptRequest(
       const GURL& location,
       const net::URLRequest* request) = 0;
 
   // Retrieve the AllowContentAccess setting value of this AwContents.
   // This method is called on the IO thread only.
   virtual bool ShouldBlockContentUrls() const = 0;
 
   // Retrieve the AllowFileAccess setting value of this AwContents.
   // This method is called on the IO thread only.
   virtual bool ShouldBlockFileUrls() const = 0;
 
   // Retrieve the BlockNetworkLoads setting value of this AwContents.
   // This method is called on the IO thread only.
   virtual bool ShouldBlockNetworkLoads() const = 0;
 };
 
 } // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_BROWSER_AW_CONTENTS_IO_THREAD_CLIENT_H_