electron/shell/common/api/atom_api_native_theme.cc
Samuel Attard efa1818cb4
feat: add new nativeTheme API (#19656)
* feat: add new nativeTheme API

* chore: deprecate and clean up old systemPreferences theme APIs in favor of new nativeTheme module

* chore: clean up and deprecate things per feedback

* chore: add tests for deprecate and clean up invert impl

* build: when is a boolean not a boolean???
2019-08-14 13:42:55 -07:00

97 lines
3 KiB
C++

// 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/common/api/atom_api_native_theme.h"
#include "native_mate/dictionary.h"
#include "native_mate/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 {
NativeTheme::NativeTheme(v8::Isolate* isolate, ui::NativeTheme* theme)
: theme_(theme) {
theme_->AddObserver(this);
Init(isolate);
}
NativeTheme::~NativeTheme() {
theme_->RemoveObserver(this);
}
void NativeTheme::OnNativeThemeUpdated(ui::NativeTheme* theme) {
Emit("updated");
}
bool NativeTheme::ShouldUseDarkColors() {
return theme_->SystemDarkModeEnabled();
}
bool NativeTheme::ShouldUseHighContrastColors() {
return theme_->UsesHighContrastColors();
}
#if defined(OS_MACOSX)
const CFStringRef WhiteOnBlack = CFSTR("whiteOnBlack");
const CFStringRef UniversalAccessDomain = CFSTR("com.apple.universalaccess");
#endif
// TODO(MarshallOfSound): Implement for Linux
bool NativeTheme::ShouldUseInvertedColorScheme() {
#if defined(OS_MACOSX)
CFPreferencesAppSynchronize(UniversalAccessDomain);
Boolean keyExistsAndHasValidFormat = false;
Boolean is_inverted = CFPreferencesGetAppBooleanValue(
WhiteOnBlack, UniversalAccessDomain, &keyExistsAndHasValidFormat);
if (!keyExistsAndHasValidFormat)
return false;
return is_inverted;
#else
return color_utils::IsInvertedColorScheme();
#endif
}
// static
v8::Local<v8::Value> NativeTheme::Create(v8::Isolate* isolate) {
ui::NativeTheme* theme = ui::NativeTheme::GetInstanceForNativeUi();
return mate::CreateHandle(isolate, new NativeTheme(isolate, theme)).ToV8();
}
// static
void NativeTheme::BuildPrototype(v8::Isolate* isolate,
v8::Local<v8::FunctionTemplate> prototype) {
prototype->SetClassName(mate::StringToV8(isolate, "NativeTheme"));
mate::ObjectTemplateBuilder(isolate, prototype->PrototypeTemplate())
.SetProperty("shouldUseDarkColors", &NativeTheme::ShouldUseDarkColors)
.SetProperty("shouldUseHighContrastColors",
&NativeTheme::ShouldUseHighContrastColors)
.SetProperty("shouldUseInvertedColorScheme",
&NativeTheme::ShouldUseInvertedColorScheme);
}
} // namespace api
} // namespace electron
namespace {
void Initialize(v8::Local<v8::Object> exports,
v8::Local<v8::Value> unused,
v8::Local<v8::Context> context,
void* priv) {
v8::Isolate* isolate = context->GetIsolate();
mate::Dictionary dict(isolate, exports);
dict.Set("nativeTheme", electron::api::NativeTheme::Create(isolate));
dict.Set("NativeTheme", electron::api::NativeTheme::GetConstructor(isolate)
->GetFunction(context)
.ToLocalChecked());
}
} // namespace
NODE_LINKED_MODULE_CONTEXT_AWARE(atom_common_native_theme, Initialize)