// Copyright 2021 The Chromium Authors // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #include #include #include #include #include "base/command_line.h" #include "base/test/scoped_feature_list.h" #include "build/build_config.h" #include "cc/base/features.h" #include "cc/trees/render_frame_metadata.h" #include "content/browser/renderer_host/render_widget_host_impl.h" #include "content/public/common/content_switches.h" #include "content/public/test/browser_test.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" #include "content/shell/common/shell_switches.h" #include "url/gurl.h" namespace content { namespace { GURL HtmlAsDataUrl(std::string viewport_content) { const std::string placeholder = "viewport_content_placeholder"; std::string html_with_placeholder = R""""(data:text/html,

The meta viewport tag will vary between tests

Scrollable horizontally and vertically

)""""; std::size_t start = html_with_placeholder.find(placeholder); std::string final_html = html_with_placeholder.replace( start, placeholder.length(), viewport_content); return GURL(final_html); } } // namespace // This test class verifies usages of meta viewport tag for which double tap // to zoom is disabled/enabled. // The input to this parameterized test is a tuple of the form: // - viewport_content // - expected value for is viewport mobile optimized // - description of test class DoubleTapToZoomBrowserTest : public ContentBrowserTest, public ::testing::WithParamInterface< std::tuple> { public: DoubleTapToZoomBrowserTest() {} ~DoubleTapToZoomBrowserTest() override = default; protected: void SetUpCommandLine(base::CommandLine* command_line) override { // We need to use internals.settings to enable android settings related to // the meta viewport tag. command_line->AppendSwitch(switches::kExposeInternalsForTesting); } void LoadURL() { EXPECT_TRUE(NavigateToURL(shell(), HtmlAsDataUrl(std::get<0>(GetParam())))); } }; IN_PROC_BROWSER_TEST_P(DoubleTapToZoomBrowserTest, MobileOptimizedStatus) { bool expected_is_viewport_mobile_optimized = std::get<1>(GetParam()); LoadURL(); WebContents* main_contents = shell()->web_contents(); RenderFrameSubmissionObserver frame_observer(main_contents); frame_observer.WaitForMetadataChange(); const cc::RenderFrameMetadata& last_metadata = frame_observer.LastRenderFrameMetadata(); EXPECT_EQ(expected_is_viewport_mobile_optimized, last_metadata.is_mobile_optimized) << std::get<2>(GetParam()); } // TODO(crbug.com/40805444): Flaky on mac and linux. #if BUILDFLAG(IS_MAC) || BUILDFLAG(IS_LINUX) #define MAYBE_TapDelayEnabled DISABLED_TapDelayEnabled #else #define MAYBE_TapDelayEnabled TapDelayEnabled #endif IN_PROC_BROWSER_TEST_P(DoubleTapToZoomBrowserTest, MAYBE_TapDelayEnabled) { bool expected_is_viewport_mobile_optimized = std::get<1>(GetParam()); LoadURL(); WebContents* main_contents = shell()->web_contents(); RenderFrameSubmissionObserver frame_observer(main_contents); frame_observer.WaitForMetadataChange(); ASSERT_EQ(!expected_is_viewport_mobile_optimized, EvalJs(shell(), "let kTapDelayEnabled = 3965;" "internals.isUseCounted(document, kTapDelayEnabled)")) << std::get<2>(GetParam()); } INSTANTIATE_TEST_SUITE_P( /* No prefix. */, DoubleTapToZoomBrowserTest, ::testing::Values( std::make_tuple("width=device-width", true, "device-width alone in meta viewport tag content"), std::make_tuple("", false, "nothing specified in meta viewport tag content"), std::make_tuple("initial-scale=1", true, "initial-scale=1 alone in meta viewport tag content"), std::make_tuple( "minimum-scale=2, maximum-scale=2", true, "minimum-scale equals maximum-scale so no zooming allowed"), std::make_tuple("width=device-width, initial-scale=1", true, "both width=device-width and initial-scale=1 in meta " "viewport tag content"), std::make_tuple("width=device-width, initial-scale=0.5", false, "initial-scale=0.5 and width=device-width DTZ enabled"), std::make_tuple( "width=device-width, height=device-height", true, "width is device-width and height is set to device-height"), std::make_tuple( "initial-scale=1, height=device-height", true, "initial scale set to 1 and height set to device-height"), std::make_tuple("minimum-scale=1", true, "minimum scale set to 1 implying initial-scale >=1"), std::make_tuple( "initial-scale=1.5", true, "initial scale set to >=1 implying the site is readable"), std::make_tuple( "initial-scale=1.5, minimum-scale=2", true, "minimum scale set to >=1 implying the site is readable"), std::make_tuple( "initial-scale=0.5, minimum-scale=2", true, "minimum scale set to >=1 implying the site is readable"), std::make_tuple("initial-scale=0.5, minimum-scale=0.75", false, "minimum scale set to <1 and initial-scale <1"), std::make_tuple("width=500", false, "fixed width"), std::make_tuple("width=500, minimum-scale=1", false, "fixed width with minimum scale"), std::make_tuple("maximum-scale=1", false, "maximum scale seeting does not disable DTZ"))); } // namespace content