Send resize event when the screen info changes.

content/browser/renderer_host/render_widget_host_unittest.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 "base/basictypes.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/shared_memory.h"
 #include "base/timer/timer.h"
@@ skipping 227 matching lines @@
   int gesture_event_type() const { return gesture_event_type_; }
   InputEventAckState ack_result() const { return ack_result_; }
 
   void SetMockPhysicalBackingSize(const gfx::Size& mock_physical_backing_size) {
     use_fake_physical_backing_size_ = true;
     mock_physical_backing_size_ = mock_physical_backing_size;
   }
   void ClearMockPhysicalBackingSize() {
     use_fake_physical_backing_size_ = false;
   }
+  void SetScreenInfo(const blink::WebScreenInfo& screen_info) {
+    screen_info_ = screen_info;
+  }
 
   // RenderWidgetHostView override.
   gfx::Rect GetViewBounds() const override { return bounds_; }
   void ProcessAckedTouchEvent(const TouchEventWithLatencyInfo& touch,
                               InputEventAckState ack_result) override {
     acked_event_ = touch.event;
     ++acked_event_count_;
   }
   void WheelEventAck(const WebMouseWheelEvent& event,
                      InputEventAckState ack_result) override {
     if (ack_result == INPUT_EVENT_ACK_STATE_CONSUMED)
       return;
     unhandled_wheel_event_count_++;
     unhandled_wheel_event_ = event;
   }
   void GestureEventAck(const WebGestureEvent& event,
                        InputEventAckState ack_result) override {
     gesture_event_type_ = event.type;
     ack_result_ = ack_result;
   }
   gfx::Size GetPhysicalBackingSize() const override {
     if (use_fake_physical_backing_size_)
       return mock_physical_backing_size_;
     return TestRenderWidgetHostView::GetPhysicalBackingSize();
   }
+  void GetScreenInfo(blink::WebScreenInfo* screen_info) override {
+    *screen_info = screen_info_;
+  }
 #if defined(USE_AURA)
   ~TestView() override {
     // Simulate the mouse exit event dispatched when an aura window is
     // destroyed. (MakeWebMouseEventFromAuraEvent translates ET_MOUSE_EXITED
     // into WebInputEvent::MouseMove.)
     rwh_->input_router()->SendMouseEvent(
         MouseEventWithLatencyInfo(
             SyntheticWebMouseEventBuilder::Build(WebInputEvent::MouseMove),
             ui::LatencyInfo()));
   }
 #endif
 
  protected:
   WebMouseWheelEvent unhandled_wheel_event_;
   int unhandled_wheel_event_count_;
   WebTouchEvent acked_event_;
   int acked_event_count_;
   int gesture_event_type_;
   gfx::Rect bounds_;
   bool use_fake_physical_backing_size_;
   gfx::Size mock_physical_backing_size_;
   InputEventAckState ack_result_;
+  blink::WebScreenInfo screen_info_;
 
   DISALLOW_COPY_AND_ASSIGN(TestView);
 };
 
 // MockRenderWidgetHostDelegate --------------------------------------------
 
 class MockRenderWidgetHostDelegate : public RenderWidgetHostDelegate {
  public:
   MockRenderWidgetHostDelegate()
       : prehandle_keyboard_event_(false),
@@ skipping 292 matching lines @@
 class RenderWidgetHostWithSourceTest
     : public RenderWidgetHostTest,
       public testing::WithParamInterface<WebGestureDevice> {};
 #endif  // GTEST_HAS_PARAM_TEST
 
 }  // namespace
 
 // -----------------------------------------------------------------------------
 
 TEST_F(RenderWidgetHostTest, Resize) {
-  // The initial bounds is the empty rect, and the screen info hasn't been sent
-  // yet, so setting it to the same thing shouldn't send the resize message.
+  // The initial bounds is the empty rect, so setting it to the same thing
+  // shouldn't send the resize message.
   view_->set_bounds(gfx::Rect());
   host_->WasResized();
   EXPECT_FALSE(host_->resize_ack_pending_);
   EXPECT_FALSE(process_->sink().GetUniqueMessageMatching(ViewMsg_Resize::ID));
 
   // No resize ack if the physical backing gets set, but the view bounds are
   // zero.
   view_->SetMockPhysicalBackingSize(gfx::Size(200, 200));
   host_->WasResized();
   EXPECT_FALSE(host_->resize_ack_pending_);
@@ skipping 93 matching lines @@
   EXPECT_FALSE(process_->sink().GetFirstMessageMatching(ViewMsg_Resize::ID));
 
   // A different size should be sent again, however.
   view_->set_bounds(gfx::Rect(0, 0, 0, 31));
   host_->WasResized();
   EXPECT_FALSE(host_->resize_ack_pending_);
   EXPECT_EQ(gfx::Size(0, 31), host_->old_resize_params_->new_size);
   EXPECT_TRUE(process_->sink().GetUniqueMessageMatching(ViewMsg_Resize::ID));
 }
 
+// Test that a resize event is sent if WasResized() is called after a
+// WebScreenInfo change.
+TEST_F(RenderWidgetHostTest, ResizeScreenInfo) {
+  blink::WebScreenInfo screen_info;
+  screen_info.deviceScaleFactor = 1.f;
+  screen_info.rect = blink::WebRect(0, 0, 800, 600);
+  screen_info.availableRect = blink::WebRect(0, 0, 800, 600);
+  screen_info.orientationAngle = 0;
+  screen_info.orientationType = blink::WebScreenOrientationPortraitPrimary;
+
+  view_->SetScreenInfo(screen_info);
+  host_->WasResized();
+  EXPECT_FALSE(host_->resize_ack_pending_);
+  EXPECT_TRUE(process_->sink().GetUniqueMessageMatching(ViewMsg_Resize::ID));
+  process_->sink().ClearMessages();
+
+  screen_info.orientationAngle = 180;
+  screen_info.orientationType = blink::WebScreenOrientationLandscapePrimary;
+
+  view_->SetScreenInfo(screen_info);
+  host_->WasResized();
+  EXPECT_FALSE(host_->resize_ack_pending_);
+  EXPECT_TRUE(process_->sink().GetUniqueMessageMatching(ViewMsg_Resize::ID));
+  process_->sink().ClearMessages();
+
+  screen_info.deviceScaleFactor = 2.f;
+
+  view_->SetScreenInfo(screen_info);
+  host_->WasResized();
+  EXPECT_FALSE(host_->resize_ack_pending_);
+  EXPECT_TRUE(process_->sink().GetUniqueMessageMatching(ViewMsg_Resize::ID));
+  process_->sink().ClearMessages();
+
+  // No screen change.
+  view_->SetScreenInfo(screen_info);
+  host_->WasResized();
+  EXPECT_FALSE(host_->resize_ack_pending_);
+  EXPECT_FALSE(process_->sink().GetUniqueMessageMatching(ViewMsg_Resize::ID));
+}
+
 // Test for crbug.com/25097.  If a renderer crashes between a resize and the
 // corresponding update message, we must be sure to clear the resize ack logic.
 TEST_F(RenderWidgetHostTest, ResizeThenCrash) {
   // Clear the first Resize message that carried screen info.
   process_->sink().ClearMessages();
 
   // Setting the bounds to a "real" rect should send out the notification.
   gfx::Rect original_size(0, 0, 100, 100);
   view_->set_bounds(original_size);
   host_->WasResized();
@@ skipping 761 matching lines @@
   // Having an initial size set means that the size information had been sent
   // with the reqiest to new up the RenderView and so subsequent WasResized
   // calls should not result in new IPC (unless the size has actually changed).
   host_->WasResized();
   EXPECT_FALSE(process_->sink().GetUniqueMessageMatching(ViewMsg_Resize::ID));
   EXPECT_EQ(initial_size_, host_->old_resize_params_->new_size);
   EXPECT_TRUE(host_->resize_ack_pending_);
 }
 
 }  // namespace content