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// 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 "content/browser/web_contents/aura/overscroll_navigation_overlay.h"
#include "content/browser/frame_host/navigation_entry_impl.h"
#include "content/browser/web_contents/aura/image_window_delegate.h"
#include "content/browser/web_contents/web_contents_view.h"
#include "content/common/frame_messages.h"
#include "content/common/view_messages.h"
#include "content/public/test/mock_render_process_host.h"
#include "content/test/test_render_frame_host.h"
#include "content/test/test_render_view_host.h"
#include "content/test/test_web_contents.h"
#include "ui/aura/test/test_windows.h"
#include "ui/aura/window.h"
#include "ui/gfx/codec/png_codec.h"
namespace content {
class OverscrollNavigationOverlayTest : public RenderViewHostImplTestHarness {
public:
OverscrollNavigationOverlayTest() {}
~OverscrollNavigationOverlayTest() override {}
gfx::Image CreateDummyScreenshot() {
SkBitmap bitmap;
bitmap.allocN32Pixels(1, 1);
bitmap.eraseColor(SK_ColorWHITE);
return gfx::Image::CreateFrom1xBitmap(bitmap);
}
void SetDummyScreenshotOnNavEntry(NavigationEntry* entry) {
SkBitmap bitmap;
bitmap.allocN32Pixels(1, 1);
bitmap.eraseColor(SK_ColorWHITE);
std::vector<unsigned char> png_data;
gfx::PNGCodec::EncodeBGRASkBitmap(bitmap, true, &png_data);
scoped_refptr<base::RefCountedBytes> png_bytes =
base::RefCountedBytes::TakeVector(&png_data);
NavigationEntryImpl* entry_impl =
NavigationEntryImpl::FromNavigationEntry(entry);
entry_impl->SetScreenshotPNGData(png_bytes);
}
void ReceivePaintUpdate() {
FrameHostMsg_DidFirstVisuallyNonEmptyPaint msg(
main_test_rfh()->GetRoutingID());
RenderViewHostTester::TestOnMessageReceived(test_rvh(), msg);
}
void PerformBackNavigationViaSliderCallbacks() {
// Sets slide direction to SLIDE_BACK, sets screenshot from NavEntry at
// offset -1 on layer_delegate_.
delete GetOverlay()->CreateBackLayer();
// Performs BACK navigation, sets image from layer_delegate_ on
// image_delegate_.
GetOverlay()->OnWindowSlideCompleting();
GetOverlay()->OnWindowSlideCompleted(scoped_ptr<ui::Layer>());
}
protected:
// RenderViewHostImplTestHarness:
void SetUp() override {
RenderViewHostImplTestHarness::SetUp();
const GURL first("https://www.google.com");
contents()->NavigateAndCommit(first);
EXPECT_TRUE(controller().GetVisibleEntry());
EXPECT_FALSE(controller().CanGoBack());
const GURL second("http://www.chromium.org");
contents()->NavigateAndCommit(second);
EXPECT_TRUE(controller().CanGoBack());
// Receive a paint update. This is necessary to make sure the size is set
// correctly in RenderWidgetHostImpl.
ViewHostMsg_UpdateRect_Params params;
memset(¶ms, 0, sizeof(params));
params.view_size = gfx::Size(10, 10);
ViewHostMsg_UpdateRect rect(test_rvh()->GetRoutingID(), params);
RenderViewHostTester::TestOnMessageReceived(test_rvh(), rect);
// Reset pending flags for size/paint.
test_rvh()->ResetSizeAndRepaintPendingFlags();
// Create the overlay, and set the contents of the overlay window.
overlay_.reset(new OverscrollNavigationOverlay(contents()));
ImageWindowDelegate* image_delegate = new ImageWindowDelegate();
scoped_ptr<aura::Window> overlay_window(
aura::test::CreateTestWindowWithDelegate(
image_delegate,
0,
gfx::Rect(root_window()->bounds().size()),
root_window()));
overlay_->SetOverlayWindow(overlay_window.Pass(), image_delegate);
overlay_->StartObserving();
EXPECT_TRUE(overlay_->web_contents());
EXPECT_FALSE(overlay_->loading_complete_);
EXPECT_FALSE(overlay_->received_paint_update_);
}
void TearDown() override {
overlay_.reset();
RenderViewHostImplTestHarness::TearDown();
}
OverscrollNavigationOverlay* GetOverlay() {
return overlay_.get();
}
private:
scoped_ptr<OverscrollNavigationOverlay> overlay_;
DISALLOW_COPY_AND_ASSIGN(OverscrollNavigationOverlayTest);
};
TEST_F(OverscrollNavigationOverlayTest, FirstVisuallyNonEmptyPaint_NoImage) {
ReceivePaintUpdate();
EXPECT_TRUE(GetOverlay()->received_paint_update_);
EXPECT_FALSE(GetOverlay()->loading_complete_);
// The paint update will hide the overlay.
EXPECT_FALSE(GetOverlay()->web_contents());
}
TEST_F(OverscrollNavigationOverlayTest, FirstVisuallyNonEmptyPaint_WithImage) {
GetOverlay()->image_delegate_->SetImage(CreateDummyScreenshot());
ReceivePaintUpdate();
EXPECT_TRUE(GetOverlay()->received_paint_update_);
EXPECT_FALSE(GetOverlay()->loading_complete_);
// The paint update will hide the overlay.
EXPECT_FALSE(GetOverlay()->web_contents());
}
TEST_F(OverscrollNavigationOverlayTest, LoadUpdateWithoutNonEmptyPaint) {
GetOverlay()->image_delegate_->SetImage(CreateDummyScreenshot());
process()->sink().ClearMessages();
contents()->TestSetIsLoading(false);
EXPECT_TRUE(GetOverlay()->loading_complete_);
EXPECT_FALSE(GetOverlay()->received_paint_update_);
// The page load should hide the overlay.
EXPECT_FALSE(GetOverlay()->web_contents());
}
TEST_F(OverscrollNavigationOverlayTest, MultiNavigation_PaintUpdate) {
GetOverlay()->image_delegate_->SetImage(CreateDummyScreenshot());
SetDummyScreenshotOnNavEntry(controller().GetEntryAtOffset(-1));
PerformBackNavigationViaSliderCallbacks();
// Screenshot was set on NavEntry at offset -1.
EXPECT_TRUE(GetOverlay()->image_delegate_->has_image());
EXPECT_FALSE(GetOverlay()->received_paint_update_);
ReceivePaintUpdate();
// Paint updates until the navigation is committed typically represent updates
// for the previous page, so they shouldn't affect the flag.
EXPECT_FALSE(GetOverlay()->received_paint_update_);
contents()->CommitPendingNavigation();
ReceivePaintUpdate();
// Navigation was committed and the paint update was received - the flag
// should now be updated.
EXPECT_TRUE(GetOverlay()->received_paint_update_);
EXPECT_FALSE(GetOverlay()->web_contents());
}
TEST_F(OverscrollNavigationOverlayTest, MultiNavigation_LoadingUpdate) {
GetOverlay()->image_delegate_->SetImage(CreateDummyScreenshot());
PerformBackNavigationViaSliderCallbacks();
// No screenshot was set on NavEntry at offset -1.
EXPECT_FALSE(GetOverlay()->image_delegate_->has_image());
// Navigation was started, so the loading status flag should be reset.
EXPECT_FALSE(GetOverlay()->loading_complete_);
// DidStopLoading for any navigation should always reset the load flag and
// dismiss the overlay even if the pending navigation wasn't committed -
// this is a "safety net" in case we mis-identify the destination webpage
// (which can happen if a new navigation is performed while while a GestureNav
// navigation is in progress).
contents()->TestSetIsLoading(true);
contents()->TestSetIsLoading(false);
EXPECT_TRUE(GetOverlay()->loading_complete_);
EXPECT_FALSE(GetOverlay()->web_contents());
}
} // namespace content
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