content/browser/host_zoom_map_impl_browsertest.cc - chromium/src - Git at Google

 // Copyright 2015 The Chromium Authors
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.

 #include "base/memory/raw_ptr.h"
 #include "base/metrics/field_trial_params.h"
 #include "base/test/scoped_feature_list.h"
 #include "content/browser/host_zoom_map_impl.h"

 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/content_features.h"
 #include "content/public/test/browser_test.h"
 #include "content/public/test/content_browser_test.h"
 #include "content/public/test/content_browser_test_utils.h"
 #include "content/shell/browser/shell.h"
 #include "net/dns/mock_host_resolver.h"
 #include "url/gurl.h"

 namespace content {

 class HostZoomMapImplBrowserTest : public ContentBrowserTest {
  protected:
   void SetUpOnMainThread() override {
     host_resolver()->AddRule("*", "127.0.0.1");
     ASSERT_TRUE(embedded_test_server()->Start());

     // We must navigate so the WebContents has a committed entry.
     url_ = GURL(embedded_test_server()->GetURL("abc.com", "/title1.html"));
     EXPECT_TRUE(NavigateToURL(shell(), url_));

     host_zoom_map_impl_ = static_cast<HostZoomMapImpl*>(
         HostZoomMap::GetForWebContents(shell()->web_contents()));
   }

   void RunTestForURL(double host_zoom_level, double temp_zoom_level) {
     WebContents* web_contents = shell()->web_contents();
     GlobalRenderFrameHostId rfh_id =
         web_contents->GetPrimaryMainFrame()->GetGlobalId();
     // Assume caller has set the zoom level to |host_zoom_level| using
     // either a host or host+scheme entry in the HostZoomMap prior to
     // calling this function.
     EXPECT_DOUBLE_EQ(host_zoom_level,
                      host_zoom_map_impl_->GetZoomLevel(web_contents));

     // Make sure that GetZoomLevel() works for temporary zoom levels.
     host_zoom_map_impl_->SetTemporaryZoomLevel(rfh_id, temp_zoom_level);
     EXPECT_DOUBLE_EQ(temp_zoom_level,
                      host_zoom_map_impl_->GetZoomLevel(web_contents));
     // Clear the temporary zoom level in case subsequent test calls use the same
     // web_contents.
     host_zoom_map_impl_->ClearTemporaryZoomLevel(rfh_id);
   }

   // Placeholder GURL to give WebContents instances a committed entry.
   GURL url_;

   // Customizable set of Features used for Android-specific tests.
   base::test::ScopedFeatureList feature_list_;

   // Instance of HostZoomMapImpl for convenience in tests.
   raw_ptr<HostZoomMapImpl, DanglingUntriaged> host_zoom_map_impl_;
 };

 #if BUILDFLAG(IS_ANDROID)
 // For Android, there are experimental features that affect the value of zoom.
 // These classes allow easy testing of the combination of enabled features.
 class HostZoomMapImplBrowserTestWithPageZoom
     : public HostZoomMapImplBrowserTest {
  public:
   HostZoomMapImplBrowserTestWithPageZoom() {
     feature_list_.InitAndEnableFeature(features::kAccessibilityPageZoom);
   }
 };

 class HostZoomMapImplBrowserTestWithRDS : public HostZoomMapImplBrowserTest {
  public:
   HostZoomMapImplBrowserTestWithRDS() {
     base::FieldTrialParams params{{"desktop_site_zoom_scale", "1.3"}};
     feature_list_.InitAndEnableFeatureWithParameters(
         features::kRequestDesktopSiteZoom, params);
   }
 };

 class HostZoomMapImplBrowserTestWithPageZoomAndRDS
     : public HostZoomMapImplBrowserTest {
  public:
   HostZoomMapImplBrowserTestWithPageZoomAndRDS() {
     base::FieldTrialParams params{{"desktop_site_zoom_scale", "1.3"}};
     base::test::FeatureRefAndParams rds{features::kRequestDesktopSiteZoom,
                                         params};
     base::test::FeatureRefAndParams page_zoom{features::kAccessibilityPageZoom,
                                               {}};
     feature_list_.InitWithFeaturesAndParameters({rds, page_zoom}, {});
   }
 };
 #endif

 // Test to make sure that GetZoomLevel() works properly for zoom levels
 // stored by host value, and can distinguish temporary zoom levels from
 // these.
 IN_PROC_BROWSER_TEST_F(HostZoomMapImplBrowserTest, GetZoomForView_Host) {
   double default_zoom_level = host_zoom_map_impl_->GetDefaultZoomLevel();
   double host_zoom_level = default_zoom_level + 1.0;
   double temp_zoom_level = default_zoom_level + 2.0;

   host_zoom_map_impl_->SetZoomLevelForHost(url_.host(), host_zoom_level);

   RunTestForURL(host_zoom_level, temp_zoom_level);
 }

 // Test to make sure that GetZoomLevel() works properly for zoom levels
 // stored by host and scheme values, and can distinguish temporary zoom levels
 // from these.
 IN_PROC_BROWSER_TEST_F(HostZoomMapImplBrowserTest,
                        GetZoomForView_HostAndScheme) {
   double default_zoom_level = host_zoom_map_impl_->GetDefaultZoomLevel();
   double host_zoom_level = default_zoom_level + 1.0;
   double temp_zoom_level = default_zoom_level + 2.0;

   host_zoom_map_impl_->SetZoomLevelForHostAndScheme(url_.scheme(), url_.host(),
                                                     host_zoom_level);

   RunTestForURL(host_zoom_level, temp_zoom_level);
 }

 #if BUILDFLAG(IS_ANDROID)
 // Test to make sure that GetZoomLevelForHostAndScheme() adjusts zoom level
 // when there is a non-default OS-level font size setting on Android.
 IN_PROC_BROWSER_TEST_F(HostZoomMapImplBrowserTestWithPageZoom,
                        GetZoomLevelForHostAndScheme) {
   // At the default level, there should be no adjustment.
   bool is_overriding_user_agent = shell()
                                       ->web_contents()
                                       ->GetController()
                                       .GetLastCommittedEntry()
                                       ->GetIsOverridingUserAgent();
   EXPECT_DOUBLE_EQ(host_zoom_map_impl_->GetDefaultZoomLevel(),
                    host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
                        url_.scheme(), url_.host(), is_overriding_user_agent));

   // Test various levels of system font size.
   // A scale of 1.3 is equivalent to an Android OS font size of XL.
   // Zoom level will be 1.44 for exponential scale: 1.2 ^ 1.44 = 1.30.
   host_zoom_map_impl_->SetSystemFontScaleForTesting(1.30);
   EXPECT_DOUBLE_EQ(1.44,
                    host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
                        url_.scheme(), url_.host(), is_overriding_user_agent));

   host_zoom_map_impl_->SetSystemFontScaleForTesting(0.85);
   EXPECT_DOUBLE_EQ(-0.89,
                    host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
                        url_.scheme(), url_.host(), is_overriding_user_agent));

   host_zoom_map_impl_->SetSystemFontScaleForTesting(1.15);
   EXPECT_DOUBLE_EQ(0.77,
                    host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
                        url_.scheme(), url_.host(), is_overriding_user_agent));
 }

 // Test to make sure that GetZoomLevelForHostAndScheme() adjusts zoom level
 // when there is an overriding user agent and the RDS zoom feature is enabled.
 IN_PROC_BROWSER_TEST_F(HostZoomMapImplBrowserTestWithRDS,
                        GetZoomLevelForHostAndScheme) {
   // By default, the feature should not result in any adjustments.
   bool is_overriding_user_agent = shell()
                                       ->web_contents()
                                       ->GetController()
                                       .GetLastCommittedEntry()
                                       ->GetIsOverridingUserAgent();
   EXPECT_DOUBLE_EQ(host_zoom_map_impl_->GetDefaultZoomLevel(),
                    host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
                        url_.scheme(), url_.host(), is_overriding_user_agent));

   // Simulate the web contents to use the desktop user agent.
   shell()
       ->web_contents()
       ->GetController()
       .GetLastCommittedEntry()
       ->SetIsOverridingUserAgent(true);
   is_overriding_user_agent = shell()
                                  ->web_contents()
                                  ->GetController()
                                  .GetLastCommittedEntry()
                                  ->GetIsOverridingUserAgent();

   // Once a desktop user agent is set, adjustments should be made. With the Page
   // Zoom feature off, the value of system font size should have no impact.
   EXPECT_DOUBLE_EQ(1.44,
                    host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
                        url_.scheme(), url_.host(), is_overriding_user_agent));

   host_zoom_map_impl_->SetSystemFontScaleForTesting(0.85);
   EXPECT_DOUBLE_EQ(1.44,
                    host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
                        url_.scheme(), url_.host(), is_overriding_user_agent));

   host_zoom_map_impl_->SetSystemFontScaleForTesting(1.15);
   EXPECT_DOUBLE_EQ(1.44,
                    host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
                        url_.scheme(), url_.host(), is_overriding_user_agent));
 }

 // Test to make sure that GetZoomLevelForHostAndScheme() adjusts zoom level
 // when both Page Zoom and an overriding user agent with RDS are enabled.
 IN_PROC_BROWSER_TEST_F(HostZoomMapImplBrowserTestWithPageZoomAndRDS,
                        GetZoomLevelForHostAndScheme) {
   bool is_overriding_user_agent = shell()
                                       ->web_contents()
                                       ->GetController()
                                       .GetLastCommittedEntry()
                                       ->GetIsOverridingUserAgent();
   // By default, the features should not result in any adjustments.
   EXPECT_DOUBLE_EQ(host_zoom_map_impl_->GetDefaultZoomLevel(),
                    host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
                        url_.scheme(), url_.host(), is_overriding_user_agent));

   // Simulate the web contents to use the desktop user agent.
   shell()
       ->web_contents()
       ->GetController()
       .GetLastCommittedEntry()
       ->SetIsOverridingUserAgent(true);
   is_overriding_user_agent = shell()
                                  ->web_contents()
                                  ->GetController()
                                  .GetLastCommittedEntry()
                                  ->GetIsOverridingUserAgent();

   // Simulate a system font scale factor of 1.3.
   host_zoom_map_impl_->SetSystemFontScaleForTesting(1.3);

   // These values should be multiplied, so 1.3 * 1.3 = 1.69, which gives a
   // zoom level of 2.88, since 1.2 ^ 2.88 = 1.69.
   EXPECT_DOUBLE_EQ(2.88,
                    host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
                        url_.scheme(), url_.host(), is_overriding_user_agent));

   host_zoom_map_impl_->SetSystemFontScaleForTesting(0.85);
   EXPECT_DOUBLE_EQ(0.55,
                    host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
                        url_.scheme(), url_.host(), is_overriding_user_agent));

   host_zoom_map_impl_->SetSystemFontScaleForTesting(1.15);
   EXPECT_DOUBLE_EQ(2.21,
                    host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
                        url_.scheme(), url_.host(), is_overriding_user_agent));
 }

 #endif
 }  // namespace content
	// Copyright 2015 The Chromium Authors
	// Use of this source code is governed by a BSD-style license that can be
	// found in the LICENSE file.

	#include "base/memory/raw_ptr.h"
	#include "base/metrics/field_trial_params.h"
	#include "base/test/scoped_feature_list.h"
	#include "content/browser/host_zoom_map_impl.h"

	#include "content/public/browser/navigation_entry.h"
	#include "content/public/browser/render_frame_host.h"
	#include "content/public/browser/render_process_host.h"
	#include "content/public/browser/render_view_host.h"
	#include "content/public/browser/web_contents.h"
	#include "content/public/common/content_features.h"
	#include "content/public/test/browser_test.h"
	#include "content/public/test/content_browser_test.h"
	#include "content/public/test/content_browser_test_utils.h"
	#include "content/shell/browser/shell.h"
	#include "net/dns/mock_host_resolver.h"
	#include "url/gurl.h"

	namespace content {

	class HostZoomMapImplBrowserTest : public ContentBrowserTest {
	protected:
	void SetUpOnMainThread() override {
	host_resolver()->AddRule("*", "127.0.0.1");
	ASSERT_TRUE(embedded_test_server()->Start());

	// We must navigate so the WebContents has a committed entry.
	url_ = GURL(embedded_test_server()->GetURL("abc.com", "/title1.html"));
	EXPECT_TRUE(NavigateToURL(shell(), url_));

	host_zoom_map_impl_ = static_cast<HostZoomMapImpl*>(
	HostZoomMap::GetForWebContents(shell()->web_contents()));
	}

	void RunTestForURL(double host_zoom_level, double temp_zoom_level) {
	WebContents* web_contents = shell()->web_contents();
	GlobalRenderFrameHostId rfh_id =
	web_contents->GetPrimaryMainFrame()->GetGlobalId();
	// Assume caller has set the zoom level to \|host_zoom_level\| using
	// either a host or host+scheme entry in the HostZoomMap prior to
	// calling this function.
	EXPECT_DOUBLE_EQ(host_zoom_level,
	host_zoom_map_impl_->GetZoomLevel(web_contents));

	// Make sure that GetZoomLevel() works for temporary zoom levels.
	host_zoom_map_impl_->SetTemporaryZoomLevel(rfh_id, temp_zoom_level);
	EXPECT_DOUBLE_EQ(temp_zoom_level,
	host_zoom_map_impl_->GetZoomLevel(web_contents));
	// Clear the temporary zoom level in case subsequent test calls use the same
	// web_contents.
	host_zoom_map_impl_->ClearTemporaryZoomLevel(rfh_id);
	}

	// Placeholder GURL to give WebContents instances a committed entry.
	GURL url_;

	// Customizable set of Features used for Android-specific tests.
	base::test::ScopedFeatureList feature_list_;

	// Instance of HostZoomMapImpl for convenience in tests.
	raw_ptr<HostZoomMapImpl, DanglingUntriaged> host_zoom_map_impl_;
	};

	#if BUILDFLAG(IS_ANDROID)
	// For Android, there are experimental features that affect the value of zoom.
	// These classes allow easy testing of the combination of enabled features.
	class HostZoomMapImplBrowserTestWithPageZoom
	: public HostZoomMapImplBrowserTest {
	public:
	HostZoomMapImplBrowserTestWithPageZoom() {
	feature_list_.InitAndEnableFeature(features::kAccessibilityPageZoom);
	}
	};

	class HostZoomMapImplBrowserTestWithRDS : public HostZoomMapImplBrowserTest {
	public:
	HostZoomMapImplBrowserTestWithRDS() {
	base::FieldTrialParams params{{"desktop_site_zoom_scale", "1.3"}};
	feature_list_.InitAndEnableFeatureWithParameters(
	features::kRequestDesktopSiteZoom, params);
	}
	};

	class HostZoomMapImplBrowserTestWithPageZoomAndRDS
	: public HostZoomMapImplBrowserTest {
	public:
	HostZoomMapImplBrowserTestWithPageZoomAndRDS() {
	base::FieldTrialParams params{{"desktop_site_zoom_scale", "1.3"}};
	base::test::FeatureRefAndParams rds{features::kRequestDesktopSiteZoom,
	params};
	base::test::FeatureRefAndParams page_zoom{features::kAccessibilityPageZoom,
	{}};
	feature_list_.InitWithFeaturesAndParameters({rds, page_zoom}, {});
	}
	};
	#endif

	// Test to make sure that GetZoomLevel() works properly for zoom levels
	// stored by host value, and can distinguish temporary zoom levels from
	// these.
	IN_PROC_BROWSER_TEST_F(HostZoomMapImplBrowserTest, GetZoomForView_Host) {
	double default_zoom_level = host_zoom_map_impl_->GetDefaultZoomLevel();
	double host_zoom_level = default_zoom_level + 1.0;
	double temp_zoom_level = default_zoom_level + 2.0;

	host_zoom_map_impl_->SetZoomLevelForHost(url_.host(), host_zoom_level);

	RunTestForURL(host_zoom_level, temp_zoom_level);
	}

	// Test to make sure that GetZoomLevel() works properly for zoom levels
	// stored by host and scheme values, and can distinguish temporary zoom levels
	// from these.
	IN_PROC_BROWSER_TEST_F(HostZoomMapImplBrowserTest,
	GetZoomForView_HostAndScheme) {
	double default_zoom_level = host_zoom_map_impl_->GetDefaultZoomLevel();
	double host_zoom_level = default_zoom_level + 1.0;
	double temp_zoom_level = default_zoom_level + 2.0;

	host_zoom_map_impl_->SetZoomLevelForHostAndScheme(url_.scheme(), url_.host(),
	host_zoom_level);

	RunTestForURL(host_zoom_level, temp_zoom_level);
	}

	#if BUILDFLAG(IS_ANDROID)
	// Test to make sure that GetZoomLevelForHostAndScheme() adjusts zoom level
	// when there is a non-default OS-level font size setting on Android.
	IN_PROC_BROWSER_TEST_F(HostZoomMapImplBrowserTestWithPageZoom,
	GetZoomLevelForHostAndScheme) {
	// At the default level, there should be no adjustment.
	bool is_overriding_user_agent = shell()
	->web_contents()
	->GetController()
	.GetLastCommittedEntry()
	->GetIsOverridingUserAgent();
	EXPECT_DOUBLE_EQ(host_zoom_map_impl_->GetDefaultZoomLevel(),
	host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
	url_.scheme(), url_.host(), is_overriding_user_agent));

	// Test various levels of system font size.
	// A scale of 1.3 is equivalent to an Android OS font size of XL.
	// Zoom level will be 1.44 for exponential scale: 1.2 ^ 1.44 = 1.30.
	host_zoom_map_impl_->SetSystemFontScaleForTesting(1.30);
	EXPECT_DOUBLE_EQ(1.44,
	host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
	url_.scheme(), url_.host(), is_overriding_user_agent));

	host_zoom_map_impl_->SetSystemFontScaleForTesting(0.85);
	EXPECT_DOUBLE_EQ(-0.89,
	host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
	url_.scheme(), url_.host(), is_overriding_user_agent));

	host_zoom_map_impl_->SetSystemFontScaleForTesting(1.15);
	EXPECT_DOUBLE_EQ(0.77,
	host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
	url_.scheme(), url_.host(), is_overriding_user_agent));
	}

	// Test to make sure that GetZoomLevelForHostAndScheme() adjusts zoom level
	// when there is an overriding user agent and the RDS zoom feature is enabled.
	IN_PROC_BROWSER_TEST_F(HostZoomMapImplBrowserTestWithRDS,
	GetZoomLevelForHostAndScheme) {
	// By default, the feature should not result in any adjustments.
	bool is_overriding_user_agent = shell()
	->web_contents()
	->GetController()
	.GetLastCommittedEntry()
	->GetIsOverridingUserAgent();
	EXPECT_DOUBLE_EQ(host_zoom_map_impl_->GetDefaultZoomLevel(),
	host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
	url_.scheme(), url_.host(), is_overriding_user_agent));

	// Simulate the web contents to use the desktop user agent.
	shell()
	->web_contents()
	->GetController()
	.GetLastCommittedEntry()
	->SetIsOverridingUserAgent(true);
	is_overriding_user_agent = shell()
	->web_contents()
	->GetController()
	.GetLastCommittedEntry()
	->GetIsOverridingUserAgent();

	// Once a desktop user agent is set, adjustments should be made. With the Page
	// Zoom feature off, the value of system font size should have no impact.
	EXPECT_DOUBLE_EQ(1.44,
	host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
	url_.scheme(), url_.host(), is_overriding_user_agent));

	host_zoom_map_impl_->SetSystemFontScaleForTesting(0.85);
	EXPECT_DOUBLE_EQ(1.44,
	host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
	url_.scheme(), url_.host(), is_overriding_user_agent));

	host_zoom_map_impl_->SetSystemFontScaleForTesting(1.15);
	EXPECT_DOUBLE_EQ(1.44,
	host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
	url_.scheme(), url_.host(), is_overriding_user_agent));
	}

	// Test to make sure that GetZoomLevelForHostAndScheme() adjusts zoom level
	// when both Page Zoom and an overriding user agent with RDS are enabled.
	IN_PROC_BROWSER_TEST_F(HostZoomMapImplBrowserTestWithPageZoomAndRDS,
	GetZoomLevelForHostAndScheme) {
	bool is_overriding_user_agent = shell()
	->web_contents()
	->GetController()
	.GetLastCommittedEntry()
	->GetIsOverridingUserAgent();
	// By default, the features should not result in any adjustments.
	EXPECT_DOUBLE_EQ(host_zoom_map_impl_->GetDefaultZoomLevel(),
	host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
	url_.scheme(), url_.host(), is_overriding_user_agent));

	// Simulate the web contents to use the desktop user agent.
	shell()
	->web_contents()
	->GetController()
	.GetLastCommittedEntry()
	->SetIsOverridingUserAgent(true);
	is_overriding_user_agent = shell()
	->web_contents()
	->GetController()
	.GetLastCommittedEntry()
	->GetIsOverridingUserAgent();

	// Simulate a system font scale factor of 1.3.
	host_zoom_map_impl_->SetSystemFontScaleForTesting(1.3);

	// These values should be multiplied, so 1.3 * 1.3 = 1.69, which gives a
	// zoom level of 2.88, since 1.2 ^ 2.88 = 1.69.
	EXPECT_DOUBLE_EQ(2.88,
	host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
	url_.scheme(), url_.host(), is_overriding_user_agent));

	host_zoom_map_impl_->SetSystemFontScaleForTesting(0.85);
	EXPECT_DOUBLE_EQ(0.55,
	host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
	url_.scheme(), url_.host(), is_overriding_user_agent));

	host_zoom_map_impl_->SetSystemFontScaleForTesting(1.15);
	EXPECT_DOUBLE_EQ(2.21,
	host_zoom_map_impl_->GetZoomLevelForHostAndScheme(
	url_.scheme(), url_.host(), is_overriding_user_agent));
	}

	#endif
	} // namespace content