Implement desktop capture API on OS X.
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12 changed files with 768 additions and 6 deletions
127
atom/browser/api/atom_api_desktop_capturer.cc
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127
atom/browser/api/atom_api_desktop_capturer.cc
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// Copyright (c) 2015 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#include "atom/browser/api/atom_api_desktop_capturer.h"
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#include "atom/common/api/atom_api_native_image.h"
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#include "atom/common/native_mate_converters/callback.h"
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#include "atom/common/node_includes.h"
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#include "base/strings/utf_string_conversions.h"
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#include "chrome/browser/media/desktop_media_list.h"
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#include "native_mate/dictionary.h"
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#include "native_mate/handle.h"
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#include "third_party/webrtc/modules/desktop_capture/desktop_capture_options.h"
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#include "third_party/webrtc/modules/desktop_capture/screen_capturer.h"
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#include "third_party/webrtc/modules/desktop_capture/window_capturer.h"
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namespace mate {
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template<>
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struct Converter<DesktopMediaList::Source> {
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static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
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const DesktopMediaList::Source& source) {
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mate::Dictionary dict(isolate, v8::Object::New(isolate));
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content::DesktopMediaID id = source.id;
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dict.Set("name", base::UTF16ToUTF8(source.name));
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dict.Set("id", id.ToString());
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dict.Set("thumbnail",
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atom::api::NativeImage::Create(isolate, gfx::Image(source.thumbnail)));
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return ConvertToV8(isolate, dict);
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}
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};
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} // namespace mate
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namespace atom {
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namespace api {
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namespace {
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// The wrapDesktopCapturer funtion which is implemented in JavaScript
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using WrapDesktopCapturerCallback = base::Callback<void(v8::Local<v8::Value>)>;
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WrapDesktopCapturerCallback g_wrap_desktop_capturer;
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const int kThumbnailWidth = 150;
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const int kThumbnailHeight = 150;
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} // namespace
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DesktopCapturer::DesktopCapturer(bool show_screens, bool show_windows) {
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scoped_ptr<webrtc::ScreenCapturer> screen_capturer(
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show_screens ? webrtc::ScreenCapturer::Create() : nullptr);
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scoped_ptr<webrtc::WindowCapturer> window_capturer(
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show_windows ? webrtc::WindowCapturer::Create() : nullptr);
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media_list_.reset(new NativeDesktopMediaList(screen_capturer.Pass(),
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window_capturer.Pass()));
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media_list_->SetThumbnailSize(gfx::Size(kThumbnailWidth, kThumbnailHeight));
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media_list_->StartUpdating(this);
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}
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DesktopCapturer::~DesktopCapturer() {
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}
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const DesktopMediaList::Source& DesktopCapturer::GetSource(int index) {
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return media_list_->GetSource(index);
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}
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void DesktopCapturer::OnSourceAdded(int index) {
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Emit("source-added", index);
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}
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void DesktopCapturer::OnSourceRemoved(int index) {
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Emit("source-removed", index);
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}
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void DesktopCapturer::OnSourceMoved(int old_index, int new_index) {
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Emit("source-moved", old_index, new_index);
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}
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void DesktopCapturer::OnSourceNameChanged(int index) {
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Emit("source-name-changed", index);
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}
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void DesktopCapturer::OnSourceThumbnailChanged(int index) {
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Emit("source-thumbnail-changed", index);
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}
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mate::ObjectTemplateBuilder DesktopCapturer::GetObjectTemplateBuilder(
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v8::Isolate* isolate) {
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return mate::ObjectTemplateBuilder(isolate)
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.SetMethod("getSource", &DesktopCapturer::GetSource);
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}
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void SetWrapDesktopCapturer(const WrapDesktopCapturerCallback& callback) {
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g_wrap_desktop_capturer = callback;
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}
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void ClearWrapDesktopCapturer() {
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g_wrap_desktop_capturer.Reset();
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}
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// static
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mate::Handle<DesktopCapturer> DesktopCapturer::Create(v8::Isolate* isolate,
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bool show_screens, bool show_windows) {
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auto handle = mate::CreateHandle(isolate,
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new DesktopCapturer(show_screens, show_windows));
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g_wrap_desktop_capturer.Run(handle.ToV8());
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return handle;
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}
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} // namespace api
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} // namespace atom
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namespace {
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void Initialize(v8::Local<v8::Object> exports, v8::Local<v8::Value> unused,
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v8::Local<v8::Context> context, void* priv) {
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v8::Isolate* isolate = context->GetIsolate();
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mate::Dictionary dict(isolate, exports);
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dict.SetMethod("_setWrapDesktopCapturer", &atom::api::SetWrapDesktopCapturer);
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dict.SetMethod("_clearWrapDesktopCapturer",
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&atom::api::ClearWrapDesktopCapturer);
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}
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} // namespace
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NODE_MODULE_CONTEXT_AWARE_BUILTIN(atom_browser_desktop_capturer, Initialize);
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