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// 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. 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<BrowserClientForAccentColorTest>();
}
void SetUpCommandLine(base::CommandLine* command_line) override {
command_line->AppendSwitchASCII(switches::kEnableBlinkFeatures,
"CSSAccentColorKeyword");
}
void SetWebAppScope(const GURL web_app_scope) {
browser_client_->set_web_app_scope(web_app_scope);
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 pipelineļ¼
// 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) {
GURL web_app_scope = GURL(
"data:text/html,<body style='background-color: "
"AccentColor;'> System Accent Color </body>");
SetWebAppScope(type == TestType::InstalledWebApp ? web_app_scope : GURL());
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 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_;
}
private:
GURL web_app_scope_;
};
std::unique_ptr<BrowserClientForAccentColorTest> 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());
}
#endif // BUILDFLAG(IS_WIN) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_MAC)
} // namespace content
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