Adding MimeHandlerView.

extensions/browser/extension_message_filter.cc

 // Copyright 2014 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.
 
 #include "extensions/browser/extension_message_filter.h"
 
 #include "components/crx_file/id_util.h"
 #include "content/public/browser/browser_thread.h"
+#include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
+#include "content/public/browser/render_view_host.h"
 #include "content/public/browser/resource_dispatcher_host.h"
 #include "extensions/browser/blob_holder.h"
 #include "extensions/browser/event_router.h"
 #include "extensions/browser/extension_function_dispatcher.h"
 #include "extensions/browser/extension_system.h"
+#include "extensions/browser/guest_view/guest_view_base.h"
 #include "extensions/browser/guest_view/guest_view_manager.h"
+#include "extensions/browser/guest_view/mime_handler_view/mime_handler_view_constants.h"
+#include "extensions/browser/guest_view/mime_handler_view/mime_handler_view_guest.h"
 #include "extensions/browser/info_map.h"
 #include "extensions/browser/process_manager.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/extension_messages.h"
 #include "ipc/ipc_message_macros.h"
 
 using content::BrowserThread;
 using content::RenderProcessHost;
 
 namespace extensions {
@@ skipping 13 matching lines @@
 }
 
 void ExtensionMessageFilter::OverrideThreadForMessage(
     const IPC::Message& message,
     BrowserThread::ID* thread) {
   switch (message.type()) {
     case ExtensionHostMsg_AddListener::ID:
     case ExtensionHostMsg_AttachGuest::ID:
     case ExtensionHostMsg_RemoveListener::ID:
     case ExtensionHostMsg_AddLazyListener::ID:
+    case ExtensionHostMsg_CreateMimeHandlerViewGuest::ID:
     case ExtensionHostMsg_RemoveLazyListener::ID:
     case ExtensionHostMsg_AddFilteredListener::ID:
     case ExtensionHostMsg_RemoveFilteredListener::ID:
     case ExtensionHostMsg_ShouldSuspendAck::ID:
     case ExtensionHostMsg_SuspendAck::ID:
     case ExtensionHostMsg_TransferBlobsAck::ID:
       *thread = BrowserThread::UI;
       break;
     default:
       break;
@@ skipping 10 matching lines @@
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(ExtensionMessageFilter, message)
     IPC_MESSAGE_HANDLER(ExtensionHostMsg_AddListener,
                         OnExtensionAddListener)
     IPC_MESSAGE_HANDLER(ExtensionHostMsg_RemoveListener,
                         OnExtensionRemoveListener)
     IPC_MESSAGE_HANDLER(ExtensionHostMsg_AddLazyListener,
                         OnExtensionAddLazyListener)
     IPC_MESSAGE_HANDLER(ExtensionHostMsg_AttachGuest,
                         OnExtensionAttachGuest)
+    IPC_MESSAGE_HANDLER(ExtensionHostMsg_CreateMimeHandlerViewGuest,
+                        OnExtensionCreateMimeHandlerViewGuest)
     IPC_MESSAGE_HANDLER(ExtensionHostMsg_RemoveLazyListener,
                         OnExtensionRemoveLazyListener)
     IPC_MESSAGE_HANDLER(ExtensionHostMsg_AddFilteredListener,
                         OnExtensionAddFilteredListener)
     IPC_MESSAGE_HANDLER(ExtensionHostMsg_RemoveFilteredListener,
                         OnExtensionRemoveFilteredListener)
     IPC_MESSAGE_HANDLER(ExtensionHostMsg_ShouldSuspendAck,
                         OnExtensionShouldSuspendAck)
     IPC_MESSAGE_HANDLER(ExtensionHostMsg_SuspendAck,
                         OnExtensionSuspendAck)
@@ skipping 71 matching lines @@
   if (!manager)
     return;
 
   manager->AttachGuest(render_process_id_,
                        routing_id,
                        element_instance_id,
                        guest_instance_id,
                        params);
 }
 
+void ExtensionMessageFilter::OnExtensionCreateMimeHandlerViewGuest(
+    int render_frame_id,
+    const std::string& src,
+    const std::string& mime_type,
+    int element_instance_id) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  extensions::GuestViewManager* manager =
+      extensions::GuestViewManager::FromBrowserContext(browser_context_);
+  if (!manager)
+    return;
+
+  content::RenderFrameHost* rfh =
+      content::RenderFrameHost::FromID(render_process_id_, render_frame_id);
+  content::WebContents* embedder_web_contents =
+      content::WebContents::FromRenderFrameHost(rfh);
+  if (!embedder_web_contents)
+    return;
+
+  GuestViewManager::WebContentsCreatedCallback callback =
+      base::Bind(&ExtensionMessageFilter::MimeHandlerViewGuestCreatedCallback,
+                 this,
+                 element_instance_id,
+                 render_process_id_,
+                 render_frame_id,
+                 src);
+  base::DictionaryValue create_params;
+  create_params.SetString(mimehandlerview::kMimeType, mime_type);
+  manager->CreateGuest(MimeHandlerViewGuest::Type,
+                       "",
+                       embedder_web_contents,
+                       create_params,
+                       callback);
+}
+
 void ExtensionMessageFilter::OnExtensionRemoveLazyListener(
     const std::string& extension_id, const std::string& event_name) {
   EventRouter* router = EventRouter::Get(browser_context_);
   if (!router)
     return;
   router->RemoveLazyEventListener(event_name, extension_id);
 }
 
 void ExtensionMessageFilter::OnExtensionAddFilteredListener(
     const std::string& extension_id,
@@ skipping 65 matching lines @@
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   ExtensionFunctionDispatcher::DispatchOnIOThread(
       extension_info_map_.get(),
       browser_context_,
       render_process_id_,
       weak_ptr_factory_.GetWeakPtr(),
       routing_id,
       params);
 }
 
+void ExtensionMessageFilter::MimeHandlerViewGuestCreatedCallback(
+    int element_instance_id,
+    int embedder_render_process_id,
+    int embedder_render_frame_id,
+    const std::string& src,
+    content::WebContents* web_contents) {
+  extensions::GuestViewManager* manager =
+      extensions::GuestViewManager::FromBrowserContext(browser_context_);
+  if (!manager)
+    return;
+
+  extensions::GuestViewBase* guest_view =
+      extensions::GuestViewBase::FromWebContents(web_contents);

[Fady Samuel, 2014/09/04 17:31:07]

Be more specific: MimeHandlerViewGuest::FromWebContents.

If the GuestView type is wrong, it'll return NULL. This is an extra safety check
that you get essentially for free.

[lazyboy, 2014/09/04 18:59:33]

Thanks.
Done.

+  if (!guest_view)
+    return;
+  int guest_instance_id = guest_view->guest_instance_id();
+
+  content::RenderFrameHost* rfh = content::RenderFrameHost::FromID(
+      embedder_render_process_id, embedder_render_frame_id);
+  if (!rfh)
+    return;
+
+  base::DictionaryValue attach_params;
+  attach_params.SetString(mimehandlerview::kSrc, src);
+  manager->AttachGuest(embedder_render_process_id,
+                       rfh->GetRenderViewHost()->GetRoutingID(),
+                       element_instance_id,
+                       guest_instance_id,
+                       attach_params);
+
+  IPC::Message* msg =
+      new ExtensionMsg_CreateMimeHandlerViewGuestACK(element_instance_id);
+  msg->set_routing_id(rfh->GetRoutingID());
+  rfh->Send(msg);
+}
+
 }  // namespace extensions