// Copyright 2025 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/command_line.h" #include "build/build_config.h" #include "content/public/browser/site_instance.h" #include "content/public/browser/web_contents.h" #include "content/public/common/content_features.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_content_browser_client.h" #include "content/public/test/content_browser_test_utils.h" #include "content/shell/browser/shell.h" #include "third_party/blink/public/common/web_preferences/web_preferences.h" #include "ui/native_theme/native_theme.h" #include "url/gurl.h" #if BUILDFLAG(IS_MAC) #import "content/browser/theme_helper_mac.h" #include "third_party/blink/public/common/sandbox_support/sandbox_support_mac.h" #endif // BUILDFLAG(IS_MAC) namespace content { // Test that the System AccentColor keyword is supported ONLY for installed // WebApps on the browser's initial ("Default") profile. Currently this test is // applied ONLY for Windows, ChromeOS and Mac. #if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_MAC) enum class AppType { WebApp, NoneWebApp }; class SystemAccentColorTest : public ContentBrowserTest { protected: enum class TestType { InstalledWebApp, NonWebApp }; void SetUpOnMainThread() override { ContentBrowserTest::SetUpOnMainThread(); browser_client_ = std::make_unique(); } void SetUpCommandLine(base::CommandLine* command_line) override { command_line->AppendSwitchASCII( switches::kEnableBlinkFeatures, "CSSAccentColorKeyword,WebAppScopeSystemAccentColor"); } void SetWebAppScope(const GURL web_app_scope) { browser_client_->set_web_app_scope(web_app_scope); shell()->web_contents()->OnWebPreferencesChanged(); } void SetIsInitialProfile(bool is_initial_profile) { browser_client_->set_is_initial_profile(is_initial_profile); shell()->web_contents()->OnWebPreferencesChanged(); } void SetAccentColor(SkColor accent_color) { #if BUILDFLAG(IS_MAC) // Mac uses a different pipeline to get the accent color, so we need to // update the color through the ThemeHelperMac. // Windows && ChromeOS pipeline： // system color ---set to ---> NativeTheme <---get from--- css // MacOS pipeline: // system color ---set to---> ThemeHelperMac ---duplicate to---> // SandboxSupport <---get from--- css ThemeHelperMac::GetInstance()->SetAccentColorForTesting(accent_color); #else ui::NativeTheme::GetInstanceForWeb()->set_user_color(accent_color); ui::NativeTheme::GetInstanceForWeb()->NotifyOnNativeThemeUpdated(); #endif // BUILDFLAG(IS_MAC) } void SetUpTestPageWithAccentColor(TestType type, SkColor accent_color, bool is_initial_profile = true) { GURL web_app_scope = GURL( "data:text/html, System Accent Color "); SetWebAppScope(type == TestType::InstalledWebApp ? web_app_scope : GURL()); SetIsInitialProfile(is_initial_profile); SetAccentColor(accent_color); ASSERT_TRUE(NavigateToURL(shell(), web_app_scope)); ASSERT_EQ("System Accent Color", EvalJs(shell(), "document.body.innerText")); } EvalJsResult GetBodyBackgroundColor() { return EvalJs(shell(), "window.getComputedStyle(document.body).backgroundColor"); } private: class BrowserClientForAccentColorTest : public ContentBrowserTestContentBrowserClient { public: explicit BrowserClientForAccentColorTest() {} void set_web_app_scope(const GURL& web_app_scope) { web_app_scope_ = web_app_scope; } void set_is_initial_profile(bool is_initial_profile) { is_initial_profile_ = is_initial_profile; } void OverrideWebPreferences( WebContents* web_contents, SiteInstance& main_frame_site, blink::web_pref::WebPreferences* web_prefs) override { ContentBrowserTestContentBrowserClient::OverrideWebPreferences( web_contents, main_frame_site, web_prefs); web_prefs->web_app_scope = web_app_scope_; web_prefs->is_initial_profile = is_initial_profile_; } private: GURL web_app_scope_; bool is_initial_profile_ = true; }; std::unique_ptr browser_client_; }; IN_PROC_BROWSER_TEST_F(SystemAccentColorTest, SystemAccentColorKeywordForInstalledWebApp) { SetUpTestPageWithAccentColor(TestType::InstalledWebApp, SkColorSetRGB(135, 115, 10)); // For installed WebApps we expect System AccentColor keyword resolve to // OS-defined accent-color, which are currently pumped for ChromeOS, // Windows and Mac. EXPECT_EQ("rgb(135, 115, 10)", GetBodyBackgroundColor()); } IN_PROC_BROWSER_TEST_F(SystemAccentColorTest, SystemAccentColorKeywordForNonWebApp) { SetUpTestPageWithAccentColor(TestType::NonWebApp, SkColorSetRGB(135, 115, 10)); // System AccentColor keyword returns a hard coded value (shade of blue) for // non-installed websites. EXPECT_EQ("rgb(0, 117, 255)", GetBodyBackgroundColor()); } IN_PROC_BROWSER_TEST_F(SystemAccentColorTest, SystemAccentColorKeywordForNonInitialProfile) { // Even in a web app scope, non-initial profiles should not see the system // accent color to prevent cross-profile fingerprinting. SetUpTestPageWithAccentColor(TestType::InstalledWebApp, SkColorSetRGB(135, 115, 10), /*is_initial_profile=*/false); // System AccentColor keyword returns a hard coded value (shade of blue) for // non-initial profiles. EXPECT_EQ("rgb(0, 117, 255)", GetBodyBackgroundColor()); } #endif // BUILDFLAG(IS_WIN) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_MAC) } // namespace content