electron/atom/browser/api/atom_api_screen.cc
2015-01-16 11:39:25 -08:00

115 lines
3.1 KiB
C++

// Copyright (c) 2013 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "atom/browser/api/atom_api_screen.h"
#include <algorithm>
#include "atom/browser/browser.h"
#include "atom/common/native_mate_converters/gfx_converter.h"
#include "base/bind.h"
#include "native_mate/dictionary.h"
#include "native_mate/object_template_builder.h"
#include "ui/gfx/screen.h"
#include "atom/common/node_includes.h"
namespace atom {
namespace api {
namespace {
template<class T>
typename T::iterator FindById(T* container, int id) {
auto predicate = [id] (const typename T::value_type& item) -> bool {
return item.id() == id;
};
return std::find_if(container->begin(), container->end(), predicate);
}
} // namespace
Screen::Screen(gfx::Screen* screen) : screen_(screen) {
screen_->AddObserver(this);
}
Screen::~Screen() {
screen_->RemoveObserver(this);
}
gfx::Point Screen::GetCursorScreenPoint() {
return screen_->GetCursorScreenPoint();
}
gfx::Display Screen::GetPrimaryDisplay() {
return screen_->GetPrimaryDisplay();
}
std::vector<gfx::Display> Screen::GetAllDisplays() {
if (displays_.size() == 0)
displays_ = screen_->GetAllDisplays();
return displays_;
}
gfx::Display Screen::GetDisplayNearestPoint(const gfx::Point& point) {
return screen_->GetDisplayNearestPoint(point);
}
gfx::Display Screen::GetDisplayMatching(const gfx::Rect& match_rect) {
return screen_->GetDisplayMatching(match_rect);
}
void Screen::OnDisplayAdded(const gfx::Display& new_display) {
displays_.push_back(new_display);
Emit("display-added");
}
void Screen::OnDisplayRemoved(const gfx::Display& old_display) {
displays_.erase(FindById(&displays_, old_display.id()));
Emit("display-removed");
}
void Screen::OnDisplayMetricsChanged(const gfx::Display& display,
uint32_t changed_metrics) {
Emit("display-metrics-changed");
}
mate::ObjectTemplateBuilder Screen::GetObjectTemplateBuilder(
v8::Isolate* isolate) {
return mate::ObjectTemplateBuilder(isolate)
.SetMethod("getCursorScreenPoint", &Screen::GetCursorScreenPoint)
.SetMethod("getPrimaryDisplay", &Screen::GetPrimaryDisplay)
.SetMethod("getAllDisplays", &Screen::GetAllDisplays)
.SetMethod("getDisplayNearestPoint", &Screen::GetDisplayNearestPoint)
.SetMethod("getDisplayMatching", &Screen::GetDisplayMatching);
}
// static
mate::Handle<Screen> Screen::Create(v8::Isolate* isolate) {
gfx::Screen* screen = gfx::Screen::GetNativeScreen();
if (!screen) {
isolate->ThrowException(v8::Exception::Error(mate::StringToV8(
isolate, "Failed to get screen information")));
return mate::Handle<Screen>();
}
return CreateHandle(isolate, new Screen(screen));
}
} // namespace api
} // namespace atom
namespace {
void Initialize(v8::Handle<v8::Object> exports, v8::Handle<v8::Value> unused,
v8::Handle<v8::Context> context, void* priv) {
mate::Dictionary dict(context->GetIsolate(), exports);
dict.Set("screen", atom::api::Screen::Create(context->GetIsolate()));
}
} // namespace
NODE_MODULE_CONTEXT_AWARE_BUILTIN(atom_common_screen, Initialize)