SyntheticGestureTarget implementation for injecting synthetic input events

content/browser/renderer_host/render_widget_host_view_android.cc

 // 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.
 
 #include "content/browser/renderer_host/render_widget_host_view_android.h"
 
 #include <android/bitmap.h>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 16 matching lines @@
 #include "content/browser/accessibility/browser_accessibility_manager_android.h"
 #include "content/browser/android/content_view_core_impl.h"
 #include "content/browser/android/in_process/synchronous_compositor_impl.h"
 #include "content/browser/android/overscroll_glow.h"
 #include "content/browser/gpu/gpu_surface_tracker.h"
 #include "content/browser/renderer_host/compositor_impl_android.h"
 #include "content/browser/renderer_host/dip_util.h"
 #include "content/browser/renderer_host/generic_touch_gesture_android.h"
 #include "content/browser/renderer_host/image_transport_factory_android.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
+#include "content/browser/renderer_host/synthetic_touch_event_android.h"
 #include "content/common/gpu/client/gl_helper.h"
 #include "content/common/gpu/gpu_messages.h"
+#include "content/common/input/input_event.h"
 #include "content/common/input_messages.h"
 #include "content/common/view_messages.h"
 #include "content/public/common/content_switches.h"
 #include "skia/ext/image_operations.h"
+#include "third_party/WebKit/public/web/WebInputEvent.h"
 #include "third_party/khronos/GLES2/gl2.h"
 #include "third_party/khronos/GLES2/gl2ext.h"
 #include "ui/gfx/android/device_display_info.h"
 #include "ui/gfx/android/java_bitmap.h"
 #include "ui/gfx/display.h"
 #include "ui/gfx/screen.h"
 #include "ui/gfx/size_conversions.h"
 
+using WebKit::WebInputEvent;
+using WebKit::WebTouchEvent;
+
 namespace content {
 
 namespace {
 
 const int kUndefinedOutputSurfaceId = -1;
 const int kMinimumPointerDistance = 50;
 
 void InsertSyncPointAndAckForGpu(
     int gpu_host_id, int route_id, const std::string& return_mailbox) {
   uint32 sync_point =
@@ skipping 933 matching lines @@
 gfx::GLSurfaceHandle RenderWidgetHostViewAndroid::GetCompositingSurface() {
   return gfx::GLSurfaceHandle(gfx::kNullPluginWindow, gfx::TEXTURE_TRANSPORT);
 }
 
 void RenderWidgetHostViewAndroid::ProcessAckedTouchEvent(
     const TouchEventWithLatencyInfo& touch, InputEventAckState ack_result) {
   if (content_view_core_)
     content_view_core_->ConfirmTouchEvent(ack_result);
 }
 
+void RenderWidgetHostViewAndroid::QueueInputEventToPlatform(
+    const InputEvent& event) {
+  if (! synthetic_touch_event_)

[Dominik Grewe, 2013/10/15 09:10:55]

Does this work with scoped_ptr<> or should it be
if (!synthetic_touch_event_.get()) ?

Also, remove space between '!' and 'synthetic_touch_event_'.

[kouhei (in TOK), 2013/10/16 04:45:38]

This should be OK.
https://code.google.com/p/chromium/codesearch#chromium/src/base/memory/scoped...
Done.

+    synthetic_touch_event_.reset(
+        new SyntheticTouchEventAndroid(content_view_core_));
+
+  if (WebInputEvent::isTouchEventType(event.web_event->type)) {
+    const WebTouchEvent* web_touch =
+        static_cast<const WebTouchEvent*>(event.web_event.get());
+
+    synthetic_touch_event_->InjectWebTouchEvent(web_touch);
+  } else
+    NOTREACHED(); // FIXME: implement other types (MouseWheel?)
+}
+
 void RenderWidgetHostViewAndroid::SetHasHorizontalScrollbar(
     bool has_horizontal_scrollbar) {
   // intentionally empty, like RenderWidgetHostViewViews
 }
 
 void RenderWidgetHostViewAndroid::SetScrollOffsetPinning(
     bool is_pinned_to_left, bool is_pinned_to_right) {
   // intentionally empty, like RenderWidgetHostViewViews
 }
 
@@ skipping 372 matching lines @@
 // RenderWidgetHostView, public:
 
 // static
 RenderWidgetHostView*
 RenderWidgetHostView::CreateViewForWidget(RenderWidgetHost* widget) {
   RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(widget);
   return new RenderWidgetHostViewAndroid(rwhi, NULL);
 }
 
 } // namespace content