/
electron_api_native_theme.cc
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/
electron_api_native_theme.cc
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// Copyright (c) 2019 Slack Technologies, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "shell/browser/api/electron_api_native_theme.h"
#include <string>
#include "base/task/post_task.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "gin/handle.h"
#include "shell/common/gin_converters/std_converter.h"
#include "shell/common/gin_helper/dictionary.h"
#include "shell/common/gin_helper/object_template_builder.h"
#include "shell/common/node_includes.h"
#include "ui/gfx/color_utils.h"
#include "ui/native_theme/native_theme.h"
namespace electron {
namespace api {
gin::WrapperInfo NativeTheme::kWrapperInfo = {gin::kEmbedderNativeGin};
NativeTheme::NativeTheme(v8::Isolate* isolate,
ui::NativeTheme* ui_theme,
ui::NativeTheme* web_theme)
: ui_theme_(ui_theme), web_theme_(web_theme) {
ui_theme_->AddObserver(this);
}
NativeTheme::~NativeTheme() {
ui_theme_->RemoveObserver(this);
}
void NativeTheme::OnNativeThemeUpdatedOnUI() {
Emit("updated");
}
void NativeTheme::OnNativeThemeUpdated(ui::NativeTheme* theme) {
base::PostTask(FROM_HERE, {content::BrowserThread::UI},
base::BindOnce(&NativeTheme::OnNativeThemeUpdatedOnUI,
base::Unretained(this)));
}
void NativeTheme::SetThemeSource(ui::NativeTheme::ThemeSource override) {
ui_theme_->set_theme_source(override);
web_theme_->set_theme_source(override);
#if BUILDFLAG(IS_MAC)
// Update the macOS appearance setting for this new override value
UpdateMacOSAppearanceForOverrideValue(override);
#endif
// TODO(MarshallOfSound): Update all existing browsers windows to use GTK dark
// theme
}
ui::NativeTheme::ThemeSource NativeTheme::GetThemeSource() const {
return ui_theme_->theme_source();
}
bool NativeTheme::ShouldUseDarkColors() {
return ui_theme_->ShouldUseDarkColors();
}
bool NativeTheme::ShouldUseHighContrastColors() {
return ui_theme_->UserHasContrastPreference();
}
bool NativeTheme::InForcedColorsMode() {
return ui_theme_->InForcedColorsMode();
}
#if BUILDFLAG(IS_MAC)
const CFStringRef WhiteOnBlack = CFSTR("whiteOnBlack");
const CFStringRef UniversalAccessDomain = CFSTR("com.apple.universalaccess");
#endif
// TODO(MarshallOfSound): Implement for Linux
bool NativeTheme::ShouldUseInvertedColorScheme() {
#if BUILDFLAG(IS_MAC)
CFPreferencesAppSynchronize(UniversalAccessDomain);
Boolean keyExistsAndHasValidFormat = false;
Boolean is_inverted = CFPreferencesGetAppBooleanValue(
WhiteOnBlack, UniversalAccessDomain, &keyExistsAndHasValidFormat);
if (!keyExistsAndHasValidFormat)
return false;
return is_inverted;
#else
return ui_theme_->GetPlatformHighContrastColorScheme() ==
ui::NativeTheme::PlatformHighContrastColorScheme::kDark;
#endif
}
// static
gin::Handle<NativeTheme> NativeTheme::Create(v8::Isolate* isolate) {
ui::NativeTheme* ui_theme = ui::NativeTheme::GetInstanceForNativeUi();
ui::NativeTheme* web_theme = ui::NativeTheme::GetInstanceForWeb();
return gin::CreateHandle(isolate,
new NativeTheme(isolate, ui_theme, web_theme));
}
gin::ObjectTemplateBuilder NativeTheme::GetObjectTemplateBuilder(
v8::Isolate* isolate) {
return gin_helper::EventEmitterMixin<NativeTheme>::GetObjectTemplateBuilder(
isolate)
.SetProperty("shouldUseDarkColors", &NativeTheme::ShouldUseDarkColors)
.SetProperty("themeSource", &NativeTheme::GetThemeSource,
&NativeTheme::SetThemeSource)
.SetProperty("shouldUseHighContrastColors",
&NativeTheme::ShouldUseHighContrastColors)
.SetProperty("shouldUseInvertedColorScheme",
&NativeTheme::ShouldUseInvertedColorScheme)
.SetProperty("inForcedColorsMode", &NativeTheme::InForcedColorsMode);
}
const char* NativeTheme::GetTypeName() {
return "NativeTheme";
}
} // namespace api
} // namespace electron
namespace {
using electron::api::NativeTheme;
void Initialize(v8::Local<v8::Object> exports,
v8::Local<v8::Value> unused,
v8::Local<v8::Context> context,
void* priv) {
v8::Isolate* isolate = context->GetIsolate();
gin::Dictionary dict(isolate, exports);
dict.Set("nativeTheme", NativeTheme::Create(isolate));
}
} // namespace
namespace gin {
v8::Local<v8::Value> Converter<ui::NativeTheme::ThemeSource>::ToV8(
v8::Isolate* isolate,
const ui::NativeTheme::ThemeSource& val) {
switch (val) {
case ui::NativeTheme::ThemeSource::kForcedDark:
return ConvertToV8(isolate, "dark");
case ui::NativeTheme::ThemeSource::kForcedLight:
return ConvertToV8(isolate, "light");
case ui::NativeTheme::ThemeSource::kSystem:
default:
return ConvertToV8(isolate, "system");
}
}
bool Converter<ui::NativeTheme::ThemeSource>::FromV8(
v8::Isolate* isolate,
v8::Local<v8::Value> val,
ui::NativeTheme::ThemeSource* out) {
std::string theme_source;
if (ConvertFromV8(isolate, val, &theme_source)) {
if (theme_source == "dark") {
*out = ui::NativeTheme::ThemeSource::kForcedDark;
} else if (theme_source == "light") {
*out = ui::NativeTheme::ThemeSource::kForcedLight;
} else if (theme_source == "system") {
*out = ui::NativeTheme::ThemeSource::kSystem;
} else {
return false;
}
return true;
}
return false;
}
} // namespace gin
NODE_LINKED_MODULE_CONTEXT_AWARE(electron_common_native_theme, Initialize)