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// Copyright 2018 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 "content/browser/picture_in_picture/picture_in_picture_window_controller_impl.h"
#include "components/viz/common/surfaces/surface_id.h"
#include "content/browser/media/media_web_contents_observer.h"
#include "content/browser/picture_in_picture/overlay_surface_embedder.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/common/media/media_player_delegate_messages.h"
#include "content/public/browser/content_browser_client.h"
#include "content/public/browser/overlay_window.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/content_client.h"
namespace content {
DEFINE_WEB_CONTENTS_USER_DATA_KEY(PictureInPictureWindowControllerImpl);
// static
PictureInPictureWindowController*
PictureInPictureWindowController::GetOrCreateForWebContents(
WebContents* web_contents) {
return PictureInPictureWindowControllerImpl::GetOrCreateForWebContents(
web_contents);
}
// static
PictureInPictureWindowControllerImpl*
PictureInPictureWindowControllerImpl::GetOrCreateForWebContents(
WebContents* web_contents) {
DCHECK(web_contents);
// This is a no-op if the controller already exists.
CreateForWebContents(web_contents);
return FromWebContents(web_contents);
}
PictureInPictureWindowControllerImpl::~PictureInPictureWindowControllerImpl() {
if (window_)
window_->Close();
// If the initiator WebContents is being destroyed, there is no need to put
// the video's media player in a post-Picture-in-Picture mode. In fact, some
// things, such as the MediaWebContentsObserver, may already been torn down.
if (initiator_->IsBeingDestroyed())
return;
initiator_->SetHasPictureInPictureVideo(false);
OnLeavingPictureInPicture(true /* should_pause_video */);
}
PictureInPictureWindowControllerImpl::PictureInPictureWindowControllerImpl(
WebContents* initiator)
: initiator_(static_cast<WebContentsImpl* const>(initiator)) {
DCHECK(initiator_);
media_web_contents_observer_ = initiator_->media_web_contents_observer();
EnsureWindow();
DCHECK(window_) << "Picture in Picture requires a valid window.";
}
gfx::Size PictureInPictureWindowControllerImpl::Show() {
DCHECK(window_);
DCHECK(surface_id_.is_valid());
window_->Show();
initiator_->SetHasPictureInPictureVideo(true);
return window_->GetBounds().size();
}
void PictureInPictureWindowControllerImpl::ClickCustomControl(
const std::string& control_id) {
DCHECK(window_);
media_player_id_->render_frame_host->Send(
new MediaPlayerDelegateMsg_ClickPictureInPictureControl(
media_player_id_->render_frame_host->GetRoutingID(),
media_player_id_->delegate_id, control_id));
}
void PictureInPictureWindowControllerImpl::Close(bool should_pause_video) {
if (!window_ || !window_->IsVisible())
return;
window_->Hide();
CloseInternal(should_pause_video);
}
void PictureInPictureWindowControllerImpl::OnWindowDestroyed() {
window_ = nullptr;
embedder_ = nullptr;
CloseInternal(true /* should_pause_video */);
}
void PictureInPictureWindowControllerImpl::EmbedSurface(
const viz::SurfaceId& surface_id,
const gfx::Size& natural_size) {
EnsureWindow();
DCHECK(window_);
DCHECK(surface_id.is_valid());
surface_id_ = surface_id;
// Update the media player id in step with the video surface id. If the
// surface id was updated for the same video, this is a no-op. This could
// be updated for a different video if another media player on the same
// |initiator_| enters Picture-in-Picture mode.
media_player_id_ =
media_web_contents_observer_->GetPictureInPictureVideoMediaPlayerId();
UpdatePlaybackState(IsPlayerActive(), !media_player_id_.has_value());
window_->UpdateVideoSize(natural_size);
if (!embedder_)
embedder_.reset(new OverlaySurfaceEmbedder(window_.get()));
embedder_->SetSurfaceId(surface_id_);
}
OverlayWindow* PictureInPictureWindowControllerImpl::GetWindowForTesting() {
return window_.get();
}
void PictureInPictureWindowControllerImpl::UpdateLayerBounds() {
if (window_ && window_->IsVisible()) {
media_web_contents_observer_->OnPictureInPictureWindowResize(
window_->GetBounds().size());
}
if (embedder_)
embedder_->UpdateLayerBounds();
}
bool PictureInPictureWindowControllerImpl::IsPlayerActive() {
if (!media_player_id_.has_value()) {
media_player_id_ =
media_web_contents_observer_->GetPictureInPictureVideoMediaPlayerId();
}
return media_player_id_.has_value() &&
media_web_contents_observer_->IsPlayerActive(*media_player_id_);
}
WebContents* PictureInPictureWindowControllerImpl::GetInitiatorWebContents() {
return initiator_;
}
void PictureInPictureWindowControllerImpl::UpdatePlaybackState(
bool is_playing,
bool reached_end_of_stream) {
if (!window_)
return;
if (reached_end_of_stream) {
media_player_id_.reset();
window_->SetPlaybackState(OverlayWindow::PlaybackState::kNoVideo);
return;
}
DCHECK(media_player_id_.has_value());
window_->SetPlaybackState(is_playing ? OverlayWindow::PlaybackState::kPlaying
: OverlayWindow::PlaybackState::kPaused);
}
bool PictureInPictureWindowControllerImpl::TogglePlayPause() {
DCHECK(window_ && window_->IsActive());
if (IsPlayerActive()) {
media_player_id_->render_frame_host->Send(new MediaPlayerDelegateMsg_Pause(
media_player_id_->render_frame_host->GetRoutingID(),
media_player_id_->delegate_id));
return false;
}
media_player_id_->render_frame_host->Send(new MediaPlayerDelegateMsg_Play(
media_player_id_->render_frame_host->GetRoutingID(),
media_player_id_->delegate_id));
return true;
}
void PictureInPictureWindowControllerImpl::OnLeavingPictureInPicture(
bool should_pause_video) {
if (IsPlayerActive() && should_pause_video) {
// Pause the current video so there is only one video playing at a time.
media_player_id_->render_frame_host->Send(new MediaPlayerDelegateMsg_Pause(
media_player_id_->render_frame_host->GetRoutingID(),
media_player_id_->delegate_id));
}
if (media_player_id_.has_value()) {
media_player_id_->render_frame_host->Send(
new MediaPlayerDelegateMsg_EndPictureInPictureMode(
media_player_id_->render_frame_host->GetRoutingID(),
media_player_id_->delegate_id));
}
}
void PictureInPictureWindowControllerImpl::CloseInternal(
bool should_pause_video) {
if (initiator_->IsBeingDestroyed())
return;
surface_id_ = viz::SurfaceId();
initiator_->SetHasPictureInPictureVideo(false);
OnLeavingPictureInPicture(should_pause_video);
}
void PictureInPictureWindowControllerImpl::EnsureWindow() {
if (window_)
return;
window_ =
GetContentClient()->browser()->CreateWindowForPictureInPicture(this);
}
} // namespace content
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