// 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/common/view_messages.h"
#include "content/public/test/render_widget_test.h"
#include "content/renderer/render_widget.h"

namespace content {

TEST_F(RenderWidgetTest, OnResize) {
  // The initial bounds is empty, so setting it to the same thing should do
  // nothing.
  ViewMsg_Resize_Params resize_params;
  resize_params.screen_info = blink::WebScreenInfo();
  resize_params.new_size = gfx::Size();
  resize_params.physical_backing_size = gfx::Size();
  resize_params.top_controls_height = 0.f;
  resize_params.top_controls_shrink_blink_size = false;
  resize_params.resizer_rect = gfx::Rect();
  resize_params.is_fullscreen_granted = false;
  resize_params.needs_resize_ack = false;
  OnResize(resize_params);
  EXPECT_EQ(resize_params.needs_resize_ack, next_paint_is_resize_ack());

  // Setting empty physical backing size should not send the ack.
  resize_params.new_size = gfx::Size(10, 10);
  OnResize(resize_params);
  EXPECT_EQ(resize_params.needs_resize_ack, next_paint_is_resize_ack());

  // Setting the bounds to a "real" rect should send the ack.
  render_thread_->sink().ClearMessages();
  gfx::Size size(100, 100);
  resize_params.new_size = size;
  resize_params.physical_backing_size = size;
  resize_params.needs_resize_ack = true;
  OnResize(resize_params);
  EXPECT_EQ(resize_params.needs_resize_ack, next_paint_is_resize_ack());

  // Clear the flag.
  widget()->didCompleteSwapBuffers();

  // Setting the same size again should not send the ack.
  resize_params.needs_resize_ack = false;
  OnResize(resize_params);
  EXPECT_EQ(resize_params.needs_resize_ack, next_paint_is_resize_ack());

  // Resetting the rect to empty should not send the ack.
  resize_params.new_size = gfx::Size();
  resize_params.physical_backing_size = gfx::Size();
  OnResize(resize_params);
  EXPECT_EQ(resize_params.needs_resize_ack, next_paint_is_resize_ack());

  // Changing the screen info should not send the ack.
  resize_params.screen_info.orientationAngle = 90;
  OnResize(resize_params);
  EXPECT_EQ(resize_params.needs_resize_ack, next_paint_is_resize_ack());

  resize_params.screen_info.orientationType =
      blink::WebScreenOrientationPortraitPrimary;
  OnResize(resize_params);
  EXPECT_EQ(resize_params.needs_resize_ack, next_paint_is_resize_ack());
}

class RenderWidgetInitialSizeTest : public RenderWidgetTest {
 public:
  RenderWidgetInitialSizeTest()
      : RenderWidgetTest(), initial_size_(200, 100) {}

 protected:
  scoped_ptr<ViewMsg_Resize_Params> InitialSizeParams() override {
    scoped_ptr<ViewMsg_Resize_Params> initial_size_params(
        new ViewMsg_Resize_Params());
    initial_size_params->new_size = initial_size_;
    initial_size_params->physical_backing_size = initial_size_;
    initial_size_params->needs_resize_ack = true;
    return initial_size_params.Pass();
  }

  gfx::Size initial_size_;
};

TEST_F(RenderWidgetInitialSizeTest, InitialSize) {
  EXPECT_EQ(initial_size_, widget()->size());
  EXPECT_EQ(initial_size_, gfx::Size(widget()->webwidget()->size()));
  EXPECT_TRUE(next_paint_is_resize_ack());
}


}  // namespace content