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// 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 TearDownOnMainThread() override { host_zoom_map_impl_ = nullptr; }
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> host_zoom_map_impl_;
};
// 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 GetZoomLevelForHostAndSchemeAndroid() adjusts zoom
// level when there is a non-default OS-level font size setting on Android.
IN_PROC_BROWSER_TEST_F(HostZoomMapImplBrowserTest,
GetZoomLevelForHostAndSchemeAndroid) {
// At the default level, there should be no adjustment.
EXPECT_DOUBLE_EQ(host_zoom_map_impl_->GetDefaultZoomLevel(),
host_zoom_map_impl_->GetZoomLevelForHostAndSchemeAndroid(
url_.scheme(), url_.host()));
host_zoom_map_impl_->SetShouldAdjustForOSLevelForTesting(true);
// 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_->GetZoomLevelForHostAndSchemeAndroid(
url_.scheme(), url_.host()));
host_zoom_map_impl_->SetSystemFontScaleForTesting(0.85);
EXPECT_DOUBLE_EQ(-0.89,
host_zoom_map_impl_->GetZoomLevelForHostAndSchemeAndroid(
url_.scheme(), url_.host()));
host_zoom_map_impl_->SetSystemFontScaleForTesting(1.15);
EXPECT_DOUBLE_EQ(0.77,
host_zoom_map_impl_->GetZoomLevelForHostAndSchemeAndroid(
url_.scheme(), url_.host()));
}
// Same as above test but without the OS-level adjustment.
IN_PROC_BROWSER_TEST_F(HostZoomMapImplBrowserTest,
GetZoomLevelForHostAndSchemeAndroidNoAdjust) {
// At the default level, there should be no adjustment.
EXPECT_DOUBLE_EQ(host_zoom_map_impl_->GetDefaultZoomLevel(),
host_zoom_map_impl_->GetZoomLevelForHostAndSchemeAndroid(
url_.scheme(), url_.host()));
host_zoom_map_impl_->SetShouldAdjustForOSLevelForTesting(false);
// Test various levels of system font size.
// A scale of 1.3 is equivalent to an Android OS font size of XL.
// Zoom level should remain zero because we are ignoring OS setting.
host_zoom_map_impl_->SetSystemFontScaleForTesting(1.30);
EXPECT_DOUBLE_EQ(0, host_zoom_map_impl_->GetZoomLevelForHostAndSchemeAndroid(
url_.scheme(), url_.host()));
host_zoom_map_impl_->SetSystemFontScaleForTesting(0.85);
EXPECT_DOUBLE_EQ(0, host_zoom_map_impl_->GetZoomLevelForHostAndSchemeAndroid(
url_.scheme(), url_.host()));
host_zoom_map_impl_->SetSystemFontScaleForTesting(1.15);
EXPECT_DOUBLE_EQ(0, host_zoom_map_impl_->GetZoomLevelForHostAndSchemeAndroid(
url_.scheme(), url_.host()));
}
#endif
} // namespace content
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