refactor: desktop capturer module (#14835)
* Revert "post all desktop capturer apis to worker threads"
This reverts commit 5a28759fea.
* refactor: desktop capturer module
* Creates the screen and window capturer for the liftime of the app
* Fixes incorrect usage of weak ptr
* build: add //ui/snapshot to chromium_src deps
* fix: handle scenarios when there are no captured sources
This commit is contained in:
Robo
Cheng Zhao
parent
e06bc311a9
commit
596ae2c2df
13 changed files with 465 additions and 829 deletions
|
|
@ -1,61 +0,0 @@
|
|||
// Copyright 2013 The Chromium Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
#ifndef CHROME_BROWSER_MEDIA_DESKTOP_MEDIA_LIST_H_
|
||||
#define CHROME_BROWSER_MEDIA_DESKTOP_MEDIA_LIST_H_
|
||||
|
||||
#include "base/strings/string16.h"
|
||||
#include "base/time/time.h"
|
||||
#include "content/public/browser/desktop_media_id.h"
|
||||
#include "ui/gfx/image/image_skia.h"
|
||||
|
||||
class DesktopMediaListObserver;
|
||||
|
||||
// DesktopMediaList provides the list of desktop media source (screens, windows,
|
||||
// tabs), and their thumbnails, to the desktop media picker dialog. It
|
||||
// transparently updates the list in the background, and notifies the desktop
|
||||
// media picker when something changes.
|
||||
class DesktopMediaList {
|
||||
public:
|
||||
// Struct used to represent each entry in the list.
|
||||
struct Source {
|
||||
// Id of the source.
|
||||
content::DesktopMediaID id;
|
||||
|
||||
// Name of the source that should be shown to the user.
|
||||
base::string16 name;
|
||||
|
||||
// The thumbnail for the source.
|
||||
gfx::ImageSkia thumbnail;
|
||||
};
|
||||
|
||||
virtual ~DesktopMediaList() {}
|
||||
|
||||
// Sets time interval between updates. By default list of sources and their
|
||||
// thumbnail are updated once per second. If called after StartUpdating() then
|
||||
// it will take effect only after the next update.
|
||||
virtual void SetUpdatePeriod(base::TimeDelta period) = 0;
|
||||
|
||||
// Sets size to which the thumbnails should be scaled. If called after
|
||||
// StartUpdating() then some thumbnails may be still scaled to the old size
|
||||
// until they are updated.
|
||||
virtual void SetThumbnailSize(const gfx::Size& thumbnail_size) = 0;
|
||||
|
||||
// Sets ID of the hosting desktop picker dialog. The window with this ID will
|
||||
// be filtered out from the list of sources.
|
||||
virtual void SetViewDialogWindowId(content::DesktopMediaID::Id dialog_id) = 0;
|
||||
|
||||
// Starts updating the model. The model is initially empty, so OnSourceAdded()
|
||||
// notifications will be generated for each existing source as it is
|
||||
// enumerated. After the initial enumeration the model will be refreshed based
|
||||
// on the update period, and notifications generated only for changes in the
|
||||
// model.
|
||||
virtual void StartUpdating(DesktopMediaListObserver* observer) = 0;
|
||||
|
||||
virtual int GetSourceCount() const = 0;
|
||||
virtual const Source& GetSource(int index) const = 0;
|
||||
virtual std::vector<Source> GetSources() const = 0;
|
||||
};
|
||||
|
||||
#endif // CHROME_BROWSER_MEDIA_DESKTOP_MEDIA_LIST_H_
|
||||
|
|
@ -1,26 +0,0 @@
|
|||
// Copyright 2013 The Chromium Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
#ifndef CHROME_BROWSER_MEDIA_DESKTOP_MEDIA_LIST_OBSERVER_H_
|
||||
#define CHROME_BROWSER_MEDIA_DESKTOP_MEDIA_LIST_OBSERVER_H_
|
||||
|
||||
// Interface implemented by the desktop media picker dialog to receive
|
||||
// notifications about changes in DesktopMediaList.
|
||||
class DesktopMediaListObserver {
|
||||
public:
|
||||
virtual void OnSourceAdded(int index) = 0;
|
||||
virtual void OnSourceRemoved(int index) = 0;
|
||||
virtual void OnSourceMoved(int old_index, int new_index) = 0;
|
||||
virtual void OnSourceNameChanged(int index) = 0;
|
||||
virtual void OnSourceThumbnailChanged(int index) = 0;
|
||||
|
||||
// Return false to stop refreshing. The associated |DesktopMediaList| should
|
||||
// no longer be used.
|
||||
virtual bool OnRefreshFinished() = 0;
|
||||
|
||||
protected:
|
||||
virtual ~DesktopMediaListObserver() {}
|
||||
};
|
||||
|
||||
#endif // CHROME_BROWSER_MEDIA_DESKTOP_MEDIA_LIST_OBSERVER_H_
|
||||
|
|
@ -1,367 +0,0 @@
|
|||
// Copyright 2013 The Chromium Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
#include "chrome/browser/media/native_desktop_media_list.h"
|
||||
|
||||
#include <map>
|
||||
#include <set>
|
||||
#include <sstream>
|
||||
|
||||
using base::PlatformThreadRef;
|
||||
|
||||
#include "base/hash.h"
|
||||
#include "base/logging.h"
|
||||
#include "base/strings/string_number_conversions.h"
|
||||
#include "base/strings/utf_string_conversions.h"
|
||||
#include "base/task_scheduler/post_task.h"
|
||||
#include "chrome/browser/media/desktop_media_list_observer.h"
|
||||
#include "content/public/browser/browser_thread.h"
|
||||
#include "media/base/video_util.h"
|
||||
#include "third_party/libyuv/include/libyuv/scale_argb.h"
|
||||
#include "third_party/skia/include/core/SkBitmap.h"
|
||||
#include "third_party/webrtc/modules/desktop_capture/desktop_capturer.h"
|
||||
#include "third_party/webrtc/modules/desktop_capture/desktop_frame.h"
|
||||
#include "ui/base/l10n/l10n_util.h"
|
||||
#include "ui/gfx/skia_util.h"
|
||||
|
||||
using content::BrowserThread;
|
||||
using content::DesktopMediaID;
|
||||
|
||||
namespace {
|
||||
|
||||
// Update the list every second.
|
||||
const int kDefaultUpdatePeriod = 1000;
|
||||
|
||||
// Returns a hash of a DesktopFrame content to detect when image for a desktop
|
||||
// media source has changed.
|
||||
uint32_t GetFrameHash(webrtc::DesktopFrame* frame) {
|
||||
int data_size = frame->stride() * frame->size().height();
|
||||
return base::Hash(frame->data(), data_size);
|
||||
}
|
||||
|
||||
gfx::ImageSkia ScaleDesktopFrame(std::unique_ptr<webrtc::DesktopFrame> frame,
|
||||
gfx::Size size) {
|
||||
gfx::Rect scaled_rect = media::ComputeLetterboxRegion(
|
||||
gfx::Rect(0, 0, size.width(), size.height()),
|
||||
gfx::Size(frame->size().width(), frame->size().height()));
|
||||
|
||||
SkBitmap result;
|
||||
result.allocN32Pixels(scaled_rect.width(), scaled_rect.height(), true);
|
||||
|
||||
uint8* pixels_data = reinterpret_cast<uint8*>(result.getPixels());
|
||||
libyuv::ARGBScale(frame->data(), frame->stride(), frame->size().width(),
|
||||
frame->size().height(), pixels_data, result.rowBytes(),
|
||||
scaled_rect.width(), scaled_rect.height(),
|
||||
libyuv::kFilterBilinear);
|
||||
|
||||
// Set alpha channel values to 255 for all pixels.
|
||||
// TODO(sergeyu): Fix screen/window capturers to capture alpha channel and
|
||||
// remove this code. Currently screen/window capturers (at least some
|
||||
// implementations) only capture R, G and B channels and set Alpha to 0.
|
||||
// crbug.com/264424
|
||||
for (int y = 0; y < result.height(); ++y) {
|
||||
for (int x = 0; x < result.width(); ++x) {
|
||||
pixels_data[result.rowBytes() * y + x * result.bytesPerPixel() + 3] =
|
||||
0xff;
|
||||
}
|
||||
}
|
||||
|
||||
return gfx::ImageSkia::CreateFrom1xBitmap(result);
|
||||
}
|
||||
|
||||
} // namespace
|
||||
|
||||
NativeDesktopMediaList::SourceDescription::SourceDescription(
|
||||
DesktopMediaID id,
|
||||
const base::string16& name)
|
||||
: id(id), name(name) {}
|
||||
|
||||
class NativeDesktopMediaList::Worker
|
||||
: public webrtc::DesktopCapturer::Callback {
|
||||
public:
|
||||
Worker(base::WeakPtr<NativeDesktopMediaList> media_list,
|
||||
std::unique_ptr<webrtc::DesktopCapturer> screen_capturer,
|
||||
std::unique_ptr<webrtc::DesktopCapturer> window_capturer);
|
||||
~Worker() override;
|
||||
|
||||
void Refresh(const gfx::Size& thumbnail_size,
|
||||
content::DesktopMediaID::Id view_dialog_id);
|
||||
|
||||
private:
|
||||
typedef std::map<DesktopMediaID, uint32> ImageHashesMap;
|
||||
|
||||
// webrtc::DesktopCapturer::Callback interface.
|
||||
void OnCaptureResult(webrtc::DesktopCapturer::Result result,
|
||||
std::unique_ptr<webrtc::DesktopFrame> frame) override;
|
||||
|
||||
base::WeakPtr<NativeDesktopMediaList> media_list_;
|
||||
|
||||
std::unique_ptr<webrtc::DesktopCapturer> screen_capturer_;
|
||||
std::unique_ptr<webrtc::DesktopCapturer> window_capturer_;
|
||||
|
||||
std::unique_ptr<webrtc::DesktopFrame> current_frame_;
|
||||
|
||||
ImageHashesMap image_hashes_;
|
||||
|
||||
DISALLOW_COPY_AND_ASSIGN(Worker);
|
||||
};
|
||||
|
||||
NativeDesktopMediaList::Worker::Worker(
|
||||
base::WeakPtr<NativeDesktopMediaList> media_list,
|
||||
std::unique_ptr<webrtc::DesktopCapturer> screen_capturer,
|
||||
std::unique_ptr<webrtc::DesktopCapturer> window_capturer)
|
||||
: media_list_(media_list),
|
||||
screen_capturer_(std::move(screen_capturer)),
|
||||
window_capturer_(std::move(window_capturer)) {
|
||||
if (screen_capturer_)
|
||||
screen_capturer_->Start(this);
|
||||
if (window_capturer_)
|
||||
window_capturer_->Start(this);
|
||||
}
|
||||
|
||||
NativeDesktopMediaList::Worker::~Worker() {}
|
||||
|
||||
void NativeDesktopMediaList::Worker::Refresh(
|
||||
const gfx::Size& thumbnail_size,
|
||||
content::DesktopMediaID::Id view_dialog_id) {
|
||||
std::vector<SourceDescription> sources;
|
||||
|
||||
if (screen_capturer_) {
|
||||
webrtc::DesktopCapturer::SourceList screens;
|
||||
if (screen_capturer_->GetSourceList(&screens)) {
|
||||
bool mutiple_screens = screens.size() > 1;
|
||||
base::string16 title;
|
||||
for (size_t i = 0; i < screens.size(); ++i) {
|
||||
if (mutiple_screens) {
|
||||
title = base::UTF8ToUTF16("Screen " + base::IntToString(i + 1));
|
||||
} else {
|
||||
title = base::UTF8ToUTF16("Entire screen");
|
||||
}
|
||||
sources.push_back(SourceDescription(
|
||||
DesktopMediaID(DesktopMediaID::TYPE_SCREEN, screens[i].id), title));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (window_capturer_) {
|
||||
webrtc::DesktopCapturer::SourceList windows;
|
||||
if (window_capturer_->GetSourceList(&windows)) {
|
||||
for (auto it = windows.begin(); it != windows.end(); ++it) {
|
||||
// Skip the picker dialog window.
|
||||
if (it->id != view_dialog_id) {
|
||||
sources.push_back(SourceDescription(
|
||||
DesktopMediaID(DesktopMediaID::TYPE_WINDOW, it->id),
|
||||
base::UTF8ToUTF16(it->title)));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
// Update list of windows before updating thumbnails.
|
||||
BrowserThread::PostTask(
|
||||
BrowserThread::UI, FROM_HERE,
|
||||
base::Bind(&NativeDesktopMediaList::OnSourcesList, media_list_, sources));
|
||||
|
||||
ImageHashesMap new_image_hashes;
|
||||
|
||||
// Get a thumbnail for each source.
|
||||
for (size_t i = 0; i < sources.size(); ++i) {
|
||||
SourceDescription& source = sources[i];
|
||||
switch (source.id.type) {
|
||||
case DesktopMediaID::TYPE_SCREEN:
|
||||
if (!screen_capturer_->SelectSource(source.id.id))
|
||||
continue;
|
||||
screen_capturer_->CaptureFrame();
|
||||
break;
|
||||
|
||||
case DesktopMediaID::TYPE_WINDOW:
|
||||
if (!window_capturer_->SelectSource(source.id.id))
|
||||
continue;
|
||||
window_capturer_->CaptureFrame();
|
||||
break;
|
||||
|
||||
default:
|
||||
NOTREACHED();
|
||||
}
|
||||
|
||||
// Expect that DesktopCapturer to always captures frames synchronously.
|
||||
// |current_frame_| may be NULL if capture failed (e.g. because window has
|
||||
// been closed).
|
||||
if (current_frame_) {
|
||||
uint32_t frame_hash = GetFrameHash(current_frame_.get());
|
||||
new_image_hashes[source.id] = frame_hash;
|
||||
|
||||
// Scale the image only if it has changed.
|
||||
ImageHashesMap::iterator it = image_hashes_.find(source.id);
|
||||
if (it == image_hashes_.end() || it->second != frame_hash) {
|
||||
gfx::ImageSkia thumbnail =
|
||||
ScaleDesktopFrame(std::move(current_frame_), thumbnail_size);
|
||||
BrowserThread::PostTask(
|
||||
BrowserThread::UI, FROM_HERE,
|
||||
base::Bind(&NativeDesktopMediaList::OnSourceThumbnail, media_list_,
|
||||
i, thumbnail));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
image_hashes_.swap(new_image_hashes);
|
||||
|
||||
BrowserThread::PostTask(
|
||||
BrowserThread::UI, FROM_HERE,
|
||||
base::Bind(&NativeDesktopMediaList::OnRefreshFinished, media_list_));
|
||||
|
||||
// Destroy capturers when done.
|
||||
screen_capturer_.reset();
|
||||
window_capturer_.reset();
|
||||
}
|
||||
|
||||
void NativeDesktopMediaList::Worker::OnCaptureResult(
|
||||
webrtc::DesktopCapturer::Result result,
|
||||
std::unique_ptr<webrtc::DesktopFrame> frame) {
|
||||
current_frame_ = std::move(frame);
|
||||
}
|
||||
|
||||
NativeDesktopMediaList::NativeDesktopMediaList(
|
||||
std::unique_ptr<webrtc::DesktopCapturer> screen_capturer,
|
||||
std::unique_ptr<webrtc::DesktopCapturer> window_capturer)
|
||||
: screen_capturer_(std::move(screen_capturer)),
|
||||
window_capturer_(std::move(window_capturer)),
|
||||
update_period_(base::TimeDelta::FromMilliseconds(kDefaultUpdatePeriod)),
|
||||
thumbnail_size_(100, 100),
|
||||
view_dialog_id_(-1),
|
||||
observer_(NULL),
|
||||
weak_factory_(this) {
|
||||
capture_task_runner_ = base::CreateSequencedTaskRunnerWithTraits(
|
||||
{base::WithBaseSyncPrimitives(), base::MayBlock(),
|
||||
base::TaskPriority::USER_VISIBLE});
|
||||
}
|
||||
|
||||
NativeDesktopMediaList::~NativeDesktopMediaList() {
|
||||
capture_task_runner_->DeleteSoon(FROM_HERE, worker_.release());
|
||||
}
|
||||
|
||||
void NativeDesktopMediaList::SetUpdatePeriod(base::TimeDelta period) {
|
||||
DCHECK(!observer_);
|
||||
update_period_ = period;
|
||||
}
|
||||
|
||||
void NativeDesktopMediaList::SetThumbnailSize(const gfx::Size& thumbnail_size) {
|
||||
thumbnail_size_ = thumbnail_size;
|
||||
}
|
||||
|
||||
void NativeDesktopMediaList::SetViewDialogWindowId(
|
||||
content::DesktopMediaID::Id dialog_id) {
|
||||
view_dialog_id_ = dialog_id;
|
||||
}
|
||||
|
||||
void NativeDesktopMediaList::StartUpdating(DesktopMediaListObserver* observer) {
|
||||
DCHECK(!observer_);
|
||||
DCHECK(screen_capturer_ || window_capturer_);
|
||||
|
||||
observer_ = observer;
|
||||
|
||||
worker_.reset(new Worker(weak_factory_.GetWeakPtr(),
|
||||
std::move(screen_capturer_),
|
||||
std::move(window_capturer_)));
|
||||
Refresh();
|
||||
}
|
||||
|
||||
int NativeDesktopMediaList::GetSourceCount() const {
|
||||
return sources_.size();
|
||||
}
|
||||
|
||||
const DesktopMediaList::Source& NativeDesktopMediaList::GetSource(
|
||||
int index) const {
|
||||
return sources_[index];
|
||||
}
|
||||
|
||||
std::vector<DesktopMediaList::Source> NativeDesktopMediaList::GetSources()
|
||||
const {
|
||||
return sources_;
|
||||
}
|
||||
|
||||
void NativeDesktopMediaList::Refresh() {
|
||||
capture_task_runner_->PostTask(
|
||||
FROM_HERE, base::Bind(&Worker::Refresh, base::Unretained(worker_.get()),
|
||||
thumbnail_size_, view_dialog_id_));
|
||||
}
|
||||
|
||||
void NativeDesktopMediaList::OnSourcesList(
|
||||
const std::vector<SourceDescription>& new_sources) {
|
||||
typedef std::set<content::DesktopMediaID> SourceSet;
|
||||
SourceSet new_source_set;
|
||||
for (size_t i = 0; i < new_sources.size(); ++i) {
|
||||
new_source_set.insert(new_sources[i].id);
|
||||
}
|
||||
// Iterate through the old sources to find the removed sources.
|
||||
for (size_t i = 0; i < sources_.size(); ++i) {
|
||||
if (new_source_set.find(sources_[i].id) == new_source_set.end()) {
|
||||
observer_->OnSourceRemoved(i);
|
||||
sources_.erase(sources_.begin() + i);
|
||||
--i;
|
||||
}
|
||||
}
|
||||
// Iterate through the new sources to find the added sources.
|
||||
if (new_sources.size() > sources_.size()) {
|
||||
SourceSet old_source_set;
|
||||
for (size_t i = 0; i < sources_.size(); ++i) {
|
||||
old_source_set.insert(sources_[i].id);
|
||||
}
|
||||
|
||||
for (size_t i = 0; i < new_sources.size(); ++i) {
|
||||
if (old_source_set.find(new_sources[i].id) == old_source_set.end()) {
|
||||
sources_.insert(sources_.begin() + i, Source());
|
||||
sources_[i].id = new_sources[i].id;
|
||||
sources_[i].name = new_sources[i].name;
|
||||
observer_->OnSourceAdded(i);
|
||||
}
|
||||
}
|
||||
}
|
||||
DCHECK_EQ(new_sources.size(), sources_.size());
|
||||
|
||||
// Find the moved/changed sources.
|
||||
size_t pos = 0;
|
||||
while (pos < sources_.size()) {
|
||||
if (!(sources_[pos].id == new_sources[pos].id)) {
|
||||
// Find the source that should be moved to |pos|, starting from |pos + 1|
|
||||
// of |sources_|, because entries before |pos| should have been sorted.
|
||||
size_t old_pos = pos + 1;
|
||||
for (; old_pos < sources_.size(); ++old_pos) {
|
||||
if (sources_[old_pos].id == new_sources[pos].id)
|
||||
break;
|
||||
}
|
||||
DCHECK(sources_[old_pos].id == new_sources[pos].id);
|
||||
|
||||
// Move the source from |old_pos| to |pos|.
|
||||
Source temp = sources_[old_pos];
|
||||
sources_.erase(sources_.begin() + old_pos);
|
||||
sources_.insert(sources_.begin() + pos, temp);
|
||||
|
||||
observer_->OnSourceMoved(old_pos, pos);
|
||||
}
|
||||
|
||||
if (sources_[pos].name != new_sources[pos].name) {
|
||||
sources_[pos].name = new_sources[pos].name;
|
||||
observer_->OnSourceNameChanged(pos);
|
||||
}
|
||||
++pos;
|
||||
}
|
||||
}
|
||||
|
||||
void NativeDesktopMediaList::OnSourceThumbnail(int index,
|
||||
const gfx::ImageSkia& image) {
|
||||
DCHECK_LT(index, static_cast<int>(sources_.size()));
|
||||
sources_[index].thumbnail = image;
|
||||
observer_->OnSourceThumbnailChanged(index);
|
||||
}
|
||||
|
||||
void NativeDesktopMediaList::OnRefreshFinished() {
|
||||
// Give a chance to the observer to stop the refresh work.
|
||||
bool is_continue = observer_->OnRefreshFinished();
|
||||
if (is_continue) {
|
||||
BrowserThread::PostDelayedTask(BrowserThread::UI, FROM_HERE,
|
||||
base::Bind(&NativeDesktopMediaList::Refresh,
|
||||
weak_factory_.GetWeakPtr()),
|
||||
update_period_);
|
||||
}
|
||||
}
|
||||
|
|
@ -1,98 +0,0 @@
|
|||
// Copyright 2013 The Chromium Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
#ifndef CHROME_BROWSER_MEDIA_NATIVE_DESKTOP_MEDIA_LIST_H_
|
||||
#define CHROME_BROWSER_MEDIA_NATIVE_DESKTOP_MEDIA_LIST_H_
|
||||
|
||||
#include "base/memory/weak_ptr.h"
|
||||
#include "base/sequenced_task_runner.h"
|
||||
#include "chrome/browser/media/desktop_media_list.h"
|
||||
#include "content/public/browser/desktop_media_id.h"
|
||||
#include "ui/gfx/image/image_skia.h"
|
||||
|
||||
namespace webrtc {
|
||||
class DesktopCapturer;
|
||||
}
|
||||
|
||||
// Implementation of DesktopMediaList that shows native screens and
|
||||
// native windows.
|
||||
class NativeDesktopMediaList : public DesktopMediaList {
|
||||
public:
|
||||
// Caller may pass NULL for either of the arguments in case when only some
|
||||
// types of sources the model should be populated with (e.g. it will only
|
||||
// contain windows, if |screen_capturer| is NULL).
|
||||
NativeDesktopMediaList(
|
||||
std::unique_ptr<webrtc::DesktopCapturer> screen_capturer,
|
||||
std::unique_ptr<webrtc::DesktopCapturer> window_capturer);
|
||||
~NativeDesktopMediaList() override;
|
||||
|
||||
// DesktopMediaList interface.
|
||||
void SetUpdatePeriod(base::TimeDelta period) override;
|
||||
void SetThumbnailSize(const gfx::Size& thumbnail_size) override;
|
||||
void StartUpdating(DesktopMediaListObserver* observer) override;
|
||||
int GetSourceCount() const override;
|
||||
const Source& GetSource(int index) const override;
|
||||
std::vector<Source> GetSources() const override;
|
||||
void SetViewDialogWindowId(content::DesktopMediaID::Id dialog_id) override;
|
||||
|
||||
private:
|
||||
class Worker;
|
||||
friend class Worker;
|
||||
|
||||
// Struct used to represent sources list the model gets from the Worker.
|
||||
struct SourceDescription {
|
||||
SourceDescription(content::DesktopMediaID id, const base::string16& name);
|
||||
|
||||
content::DesktopMediaID id;
|
||||
base::string16 name;
|
||||
};
|
||||
|
||||
// Order comparator for sources. Used to sort list of sources.
|
||||
static bool CompareSources(const SourceDescription& a,
|
||||
const SourceDescription& b);
|
||||
|
||||
// Post a task for the |worker_| to update list of windows and get thumbnails.
|
||||
void Refresh();
|
||||
|
||||
// Called by |worker_| to refresh the model. First it posts tasks for
|
||||
// OnSourcesList() with the fresh list of sources, then follows with
|
||||
// OnSourceThumbnail() for each changed thumbnail and then calls
|
||||
// OnRefreshFinished() at the end.
|
||||
void OnSourcesList(const std::vector<SourceDescription>& sources);
|
||||
void OnSourceThumbnail(int index, const gfx::ImageSkia& thumbnail);
|
||||
void OnRefreshFinished();
|
||||
|
||||
// Capturers specified in SetCapturers() and passed to the |worker_| later.
|
||||
std::unique_ptr<webrtc::DesktopCapturer> screen_capturer_;
|
||||
std::unique_ptr<webrtc::DesktopCapturer> window_capturer_;
|
||||
|
||||
// Time interval between mode updates.
|
||||
base::TimeDelta update_period_;
|
||||
|
||||
// Size of thumbnails generated by the model.
|
||||
gfx::Size thumbnail_size_;
|
||||
|
||||
// ID of the hosting dialog.
|
||||
content::DesktopMediaID::Id view_dialog_id_;
|
||||
|
||||
// The observer passed to StartUpdating().
|
||||
DesktopMediaListObserver* observer_;
|
||||
|
||||
// Task runner used for the |worker_|.
|
||||
scoped_refptr<base::SequencedTaskRunner> capture_task_runner_;
|
||||
|
||||
// An object that does all the work of getting list of sources on a background
|
||||
// thread (see |capture_task_runner_|). Destroyed on |capture_task_runner_|
|
||||
// after the model is destroyed.
|
||||
std::unique_ptr<Worker> worker_;
|
||||
|
||||
// Current list of sources.
|
||||
std::vector<Source> sources_;
|
||||
|
||||
base::WeakPtrFactory<NativeDesktopMediaList> weak_factory_;
|
||||
|
||||
DISALLOW_COPY_AND_ASSIGN(NativeDesktopMediaList);
|
||||
};
|
||||
|
||||
#endif // CHROME_BROWSER_MEDIA_NATIVE_DESKTOP_MEDIA_LIST_H_
|
||||
Loading…
Add table
Add a link
Reference in a new issue