content/browser/renderer_host/render_widget_host_view_aura_browsertest.cc - chromium/src - Git at Google

 // Copyright 2018 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_aura.h"

 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/run_loop.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "content/browser/renderer_host/delegated_frame_host.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_view_aura.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_delegate.h"
 #include "content/public/test/browser_test_utils.h"
 #include "content/public/test/content_browser_test.h"
 #include "content/public/test/content_browser_test_utils.h"
 #include "content/shell/browser/shell.h"

 namespace content {
 namespace {

 #if defined(OS_CHROMEOS)
 const char kMinimalPageDataURL[] =
     "data:text/html,<html><head></head><body>Hello, world</body></html>";

 // Run the current message loop for a short time without unwinding the current
 // call stack.
 void GiveItSomeTime() {
   base::RunLoop run_loop;
   base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
       FROM_HERE, run_loop.QuitClosure(),
       base::TimeDelta::FromMilliseconds(250));
   run_loop.Run();
 }
 #endif  // defined(OS_CHROMEOS)

 class FakeWebContentsDelegate : public WebContentsDelegate {
  public:
   FakeWebContentsDelegate() = default;
   ~FakeWebContentsDelegate() override = default;

   void SetShowStaleContentOnEviction(bool value) {
     show_stale_content_on_eviction_ = value;
   }

   bool ShouldShowStaleContentOnEviction(WebContents* source) override {
     return show_stale_content_on_eviction_;
   }

  private:
   bool show_stale_content_on_eviction_ = false;

   DISALLOW_COPY_AND_ASSIGN(FakeWebContentsDelegate);
 };

 }  // namespace

 class RenderWidgetHostViewAuraBrowserTest : public ContentBrowserTest {
  public:
   RenderViewHost* GetRenderViewHost() const {
     RenderViewHost* const rvh = shell()->web_contents()->GetRenderViewHost();
     CHECK(rvh);
     return rvh;
   }

   RenderWidgetHostViewAura* GetRenderWidgetHostView() const {
     return static_cast<RenderWidgetHostViewAura*>(
         GetRenderViewHost()->GetWidget()->GetView());
   }

   DelegatedFrameHost* GetDelegatedFrameHost() const {
     return GetRenderWidgetHostView()->delegated_frame_host_.get();
   }
 };

 #if defined(OS_CHROMEOS)
 IN_PROC_BROWSER_TEST_F(RenderWidgetHostViewAuraBrowserTest,
                        StaleFrameContentOnEvictionNormal) {
   NavigateToURL(shell(), GURL(kMinimalPageDataURL));

   // Wait for first frame activation when a surface is embedded.
   while (!GetDelegatedFrameHost()->HasSavedFrame())
     GiveItSomeTime();

   FakeWebContentsDelegate delegate;
   delegate.SetShowStaleContentOnEviction(true);
   shell()->web_contents()->SetDelegate(&delegate);

   // Initially there should be no stale content set.
   EXPECT_FALSE(
       GetDelegatedFrameHost()->stale_content_layer_->has_external_content());
   EXPECT_EQ(GetDelegatedFrameHost()->frame_eviction_state_,
             DelegatedFrameHost::FrameEvictionState::kNotStarted);

   // Hide the view and evict the frame. This should trigger a copy of the stale
   // frame content.
   GetRenderWidgetHostView()->Hide();
   static_cast<viz::FrameEvictorClient*>(GetDelegatedFrameHost())
       ->EvictDelegatedFrame();
   EXPECT_EQ(GetDelegatedFrameHost()->frame_eviction_state_,
             DelegatedFrameHost::FrameEvictionState::kPendingEvictionRequests);

   // Wait until the stale frame content is copied and set onto the layer.
   while (!GetDelegatedFrameHost()->stale_content_layer_->has_external_content())
     GiveItSomeTime();

   EXPECT_EQ(GetDelegatedFrameHost()->frame_eviction_state_,
             DelegatedFrameHost::FrameEvictionState::kNotStarted);

   // Unhidding the view should reset the stale content layer to show the new
   // frame content.
   GetRenderWidgetHostView()->Show();
   EXPECT_FALSE(
       GetDelegatedFrameHost()->stale_content_layer_->has_external_content());
 }

 IN_PROC_BROWSER_TEST_F(RenderWidgetHostViewAuraBrowserTest,
                        StaleFrameContentOnEvictionRejected) {
   NavigateToURL(shell(), GURL(kMinimalPageDataURL));

   // Wait for first frame activation when a surface is embedded.
   while (!GetDelegatedFrameHost()->HasSavedFrame())
     GiveItSomeTime();

   FakeWebContentsDelegate delegate;
   delegate.SetShowStaleContentOnEviction(true);
   shell()->web_contents()->SetDelegate(&delegate);

   // Initially there should be no stale content set.
   EXPECT_FALSE(
       GetDelegatedFrameHost()->stale_content_layer_->has_external_content());
   EXPECT_EQ(GetDelegatedFrameHost()->frame_eviction_state_,
             DelegatedFrameHost::FrameEvictionState::kNotStarted);

   // Hide the view and evict the frame. This should trigger a copy of the stale
   // frame content.
   GetRenderWidgetHostView()->Hide();
   static_cast<viz::FrameEvictorClient*>(GetDelegatedFrameHost())
       ->EvictDelegatedFrame();
   EXPECT_EQ(GetDelegatedFrameHost()->frame_eviction_state_,
             DelegatedFrameHost::FrameEvictionState::kPendingEvictionRequests);

   GetRenderWidgetHostView()->Show();
   EXPECT_EQ(GetDelegatedFrameHost()->frame_eviction_state_,
             DelegatedFrameHost::FrameEvictionState::kNotStarted);

   // Wait until the stale frame content is copied and the result callback is
   // complete.
   GiveItSomeTime();

   // This should however not set the stale content as the view is visible and
   // new frames are being submitted.
   EXPECT_FALSE(
       GetDelegatedFrameHost()->stale_content_layer_->has_external_content());
 }

 IN_PROC_BROWSER_TEST_F(RenderWidgetHostViewAuraBrowserTest,
                        StaleFrameContentOnEvictionNone) {
   NavigateToURL(shell(), GURL(kMinimalPageDataURL));

   // Wait for first frame activation when a surface is embedded.
   while (!GetDelegatedFrameHost()->HasSavedFrame())
     GiveItSomeTime();

   FakeWebContentsDelegate delegate;
   delegate.SetShowStaleContentOnEviction(false);
   shell()->web_contents()->SetDelegate(&delegate);

   // Initially there should be no stale content set.
   EXPECT_FALSE(
       GetDelegatedFrameHost()->stale_content_layer_->has_external_content());
   EXPECT_EQ(GetDelegatedFrameHost()->frame_eviction_state_,
             DelegatedFrameHost::FrameEvictionState::kNotStarted);

   // Hide the view and evict the frame. This should not trigger a copy of the
   // stale frame content as the WebContentDelegate returns false.
   GetRenderWidgetHostView()->Hide();
   static_cast<viz::FrameEvictorClient*>(GetDelegatedFrameHost())
       ->EvictDelegatedFrame();

   EXPECT_EQ(GetDelegatedFrameHost()->frame_eviction_state_,
             DelegatedFrameHost::FrameEvictionState::kNotStarted);

   // Wait for a while to ensure any copy requests that were sent out are not
   // completed. There shouldnt be any requests sent however.
   GiveItSomeTime();
   EXPECT_FALSE(
       GetDelegatedFrameHost()->stale_content_layer_->has_external_content());
 }
 #endif  // #if defined(OS_CHROMEOS)

 }  // namespace content
	// Copyright 2018 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_aura.h"

	#include "base/bind.h"
	#include "base/macros.h"
	#include "base/run_loop.h"
	#include "base/threading/thread_task_runner_handle.h"
	#include "content/browser/renderer_host/delegated_frame_host.h"
	#include "content/browser/renderer_host/render_widget_host_impl.h"
	#include "content/browser/renderer_host/render_widget_host_view_aura.h"
	#include "content/public/browser/render_frame_host.h"
	#include "content/public/browser/render_view_host.h"
	#include "content/public/browser/web_contents.h"
	#include "content/public/browser/web_contents_delegate.h"
	#include "content/public/test/browser_test_utils.h"
	#include "content/public/test/content_browser_test.h"
	#include "content/public/test/content_browser_test_utils.h"
	#include "content/shell/browser/shell.h"

	namespace content {
	namespace {

	#if defined(OS_CHROMEOS)
	const char kMinimalPageDataURL[] =
	"data:text/html,<html><head></head><body>Hello, world</body></html>";

	// Run the current message loop for a short time without unwinding the current
	// call stack.
	void GiveItSomeTime() {
	base::RunLoop run_loop;
	base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
	FROM_HERE, run_loop.QuitClosure(),
	base::TimeDelta::FromMilliseconds(250));
	run_loop.Run();
	}
	#endif // defined(OS_CHROMEOS)

	class FakeWebContentsDelegate : public WebContentsDelegate {
	public:
	FakeWebContentsDelegate() = default;
	~FakeWebContentsDelegate() override = default;

	void SetShowStaleContentOnEviction(bool value) {
	show_stale_content_on_eviction_ = value;
	}

	bool ShouldShowStaleContentOnEviction(WebContents* source) override {
	return show_stale_content_on_eviction_;
	}

	private:
	bool show_stale_content_on_eviction_ = false;

	DISALLOW_COPY_AND_ASSIGN(FakeWebContentsDelegate);
	};

	} // namespace

	class RenderWidgetHostViewAuraBrowserTest : public ContentBrowserTest {
	public:
	RenderViewHost* GetRenderViewHost() const {
	RenderViewHost* const rvh = shell()->web_contents()->GetRenderViewHost();
	CHECK(rvh);
	return rvh;
	}

	RenderWidgetHostViewAura* GetRenderWidgetHostView() const {
	return static_cast<RenderWidgetHostViewAura*>(
	GetRenderViewHost()->GetWidget()->GetView());
	}

	DelegatedFrameHost* GetDelegatedFrameHost() const {
	return GetRenderWidgetHostView()->delegated_frame_host_.get();
	}
	};

	#if defined(OS_CHROMEOS)
	IN_PROC_BROWSER_TEST_F(RenderWidgetHostViewAuraBrowserTest,
	StaleFrameContentOnEvictionNormal) {
	NavigateToURL(shell(), GURL(kMinimalPageDataURL));

	// Wait for first frame activation when a surface is embedded.
	while (!GetDelegatedFrameHost()->HasSavedFrame())
	GiveItSomeTime();

	FakeWebContentsDelegate delegate;
	delegate.SetShowStaleContentOnEviction(true);
	shell()->web_contents()->SetDelegate(&delegate);

	// Initially there should be no stale content set.
	EXPECT_FALSE(
	GetDelegatedFrameHost()->stale_content_layer_->has_external_content());
	EXPECT_EQ(GetDelegatedFrameHost()->frame_eviction_state_,
	DelegatedFrameHost::FrameEvictionState::kNotStarted);

	// Hide the view and evict the frame. This should trigger a copy of the stale
	// frame content.
	GetRenderWidgetHostView()->Hide();
	static_cast<viz::FrameEvictorClient*>(GetDelegatedFrameHost())
	->EvictDelegatedFrame();
	EXPECT_EQ(GetDelegatedFrameHost()->frame_eviction_state_,
	DelegatedFrameHost::FrameEvictionState::kPendingEvictionRequests);

	// Wait until the stale frame content is copied and set onto the layer.
	while (!GetDelegatedFrameHost()->stale_content_layer_->has_external_content())
	GiveItSomeTime();

	EXPECT_EQ(GetDelegatedFrameHost()->frame_eviction_state_,
	DelegatedFrameHost::FrameEvictionState::kNotStarted);

	// Unhidding the view should reset the stale content layer to show the new
	// frame content.
	GetRenderWidgetHostView()->Show();
	EXPECT_FALSE(
	GetDelegatedFrameHost()->stale_content_layer_->has_external_content());
	}

	IN_PROC_BROWSER_TEST_F(RenderWidgetHostViewAuraBrowserTest,
	StaleFrameContentOnEvictionRejected) {
	NavigateToURL(shell(), GURL(kMinimalPageDataURL));

	// Wait for first frame activation when a surface is embedded.
	while (!GetDelegatedFrameHost()->HasSavedFrame())
	GiveItSomeTime();

	FakeWebContentsDelegate delegate;
	delegate.SetShowStaleContentOnEviction(true);
	shell()->web_contents()->SetDelegate(&delegate);

	// Initially there should be no stale content set.
	EXPECT_FALSE(
	GetDelegatedFrameHost()->stale_content_layer_->has_external_content());
	EXPECT_EQ(GetDelegatedFrameHost()->frame_eviction_state_,
	DelegatedFrameHost::FrameEvictionState::kNotStarted);

	// Hide the view and evict the frame. This should trigger a copy of the stale
	// frame content.
	GetRenderWidgetHostView()->Hide();
	static_cast<viz::FrameEvictorClient*>(GetDelegatedFrameHost())
	->EvictDelegatedFrame();
	EXPECT_EQ(GetDelegatedFrameHost()->frame_eviction_state_,
	DelegatedFrameHost::FrameEvictionState::kPendingEvictionRequests);

	GetRenderWidgetHostView()->Show();
	EXPECT_EQ(GetDelegatedFrameHost()->frame_eviction_state_,
	DelegatedFrameHost::FrameEvictionState::kNotStarted);

	// Wait until the stale frame content is copied and the result callback is
	// complete.
	GiveItSomeTime();

	// This should however not set the stale content as the view is visible and
	// new frames are being submitted.
	EXPECT_FALSE(
	GetDelegatedFrameHost()->stale_content_layer_->has_external_content());
	}

	IN_PROC_BROWSER_TEST_F(RenderWidgetHostViewAuraBrowserTest,
	StaleFrameContentOnEvictionNone) {
	NavigateToURL(shell(), GURL(kMinimalPageDataURL));

	// Wait for first frame activation when a surface is embedded.
	while (!GetDelegatedFrameHost()->HasSavedFrame())
	GiveItSomeTime();

	FakeWebContentsDelegate delegate;
	delegate.SetShowStaleContentOnEviction(false);
	shell()->web_contents()->SetDelegate(&delegate);

	// Initially there should be no stale content set.
	EXPECT_FALSE(
	GetDelegatedFrameHost()->stale_content_layer_->has_external_content());
	EXPECT_EQ(GetDelegatedFrameHost()->frame_eviction_state_,
	DelegatedFrameHost::FrameEvictionState::kNotStarted);

	// Hide the view and evict the frame. This should not trigger a copy of the
	// stale frame content as the WebContentDelegate returns false.
	GetRenderWidgetHostView()->Hide();
	static_cast<viz::FrameEvictorClient*>(GetDelegatedFrameHost())
	->EvictDelegatedFrame();

	EXPECT_EQ(GetDelegatedFrameHost()->frame_eviction_state_,
	DelegatedFrameHost::FrameEvictionState::kNotStarted);

	// Wait for a while to ensure any copy requests that were sent out are not
	// completed. There shouldnt be any requests sent however.
	GiveItSomeTime();
	EXPECT_FALSE(
	GetDelegatedFrameHost()->stale_content_layer_->has_external_content());
	}
	#endif // #if defined(OS_CHROMEOS)

	} // namespace content