Browser Plugin: Move input to RWHVGuest to support interstitial pages

content/browser/frame_host/render_widget_host_view_guest.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 "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "content/browser/browser_plugin/browser_plugin_guest.h"
 #include "content/browser/frame_host/render_widget_host_view_guest.h"
@@ skipping 45 matching lines @@
   gesture_recognizer_->AddGestureEventHelper(this);
 #endif  // defined(USE_AURA)
 }
 
 RenderWidgetHostViewGuest::~RenderWidgetHostViewGuest() {
 #if defined(USE_AURA)
   gesture_recognizer_->RemoveGestureEventHelper(this);
 #endif  // defined(USE_AURA)
 }
 
+bool RenderWidgetHostViewGuest::OnMessageReceivedFromEmbedder(
+    const IPC::Message& message) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP(RenderWidgetHostViewGuest, message)
+    IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_HandleInputEvent,
+                        OnHandleInputEvent)

[Charlie Reis, 2014/09/10 00:28:21]

To pass the embedder_web_contents to the handler, you can use
IPC_BEGIN_MESSAGE_MAP_WITH_PARAM.

(Nasko pointed me to an example:
https://code.google.com/p/chromium/codesearch#chromium/src/content/browser/ge...)

[Fady Samuel, 2014/09/10 02:51:37]

Done.

+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  return handled;
+}
+
 void RenderWidgetHostViewGuest::WasShown() {
   // If the WebContents associated with us showed an interstitial page in the
   // beginning, the teardown path might call WasShown() while |host_| is in
   // the process of destruction. Avoid calling WasShown below in this case.
   // TODO(lazyboy): We shouldn't be showing interstitial pages in guests in the
   // first place: http://crbug.com/273089.
   //
   // |guest_| is NULL during test.
   if ((guest_ && guest_->is_in_destruction()) || !host_->is_hidden())
     return;
@@ skipping 447 matching lines @@
 SkColorType RenderWidgetHostViewGuest::PreferredReadbackFormat() {
   return kN32_SkColorType;
 }
 
 RenderWidgetHostViewBase*
 RenderWidgetHostViewGuest::GetGuestRenderWidgetHostView() const {
   return static_cast<RenderWidgetHostViewBase*>(
       guest_->GetEmbedderRenderWidgetHostView());
 }
 
+void RenderWidgetHostViewGuest::OnHandleInputEvent(
+    int browser_plugin_instance_id,
+    const gfx::Rect& guest_window_rect,
+    const blink::WebInputEvent* event) {
+  if (blink::WebInputEvent::isMouseEventType(event->type)) {
+    host_->ForwardMouseEvent(
+        *static_cast<const blink::WebMouseEvent*>(event));
+    return;
+  }
+
+  if (event->type == blink::WebInputEvent::MouseWheel) {
+    host_->ForwardWheelEvent(
+        *static_cast<const blink::WebMouseWheelEvent*>(event));
+    return;
+  }
+
+  if (blink::WebInputEvent::isKeyboardEventType(event->type)) {
+    RenderViewHostImpl* embedder_rvh = static_cast<RenderViewHostImpl*>(
+        guest_->embedder_web_contents()->GetRenderViewHost());
+    if (!embedder_rvh->GetLastKeyboardEvent())
+      return;
+    NativeWebKeyboardEvent keyboard_event(
+        *embedder_rvh->GetLastKeyboardEvent());
+    host_->ForwardKeyboardEvent(keyboard_event);
+    return;
+  }
+
+  if (blink::WebInputEvent::isTouchEventType(event->type)) {
+    host_->ForwardTouchEventWithLatencyInfo(
+        *static_cast<const blink::WebTouchEvent*>(event),
+        ui::LatencyInfo());
+    return;
+  }
+
+  if (blink::WebInputEvent::isGestureEventType(event->type)) {
+    host_->ForwardGestureEvent(
+        *static_cast<const blink::WebGestureEvent*>(event));
+    return;
+  }
+}
+
 }  // namespace content