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// Copyright 2014 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 "components/native_viewport/native_viewport_impl.h"
#include "base/auto_reset.h"
#include "base/bind.h"
#include "base/macros.h"
#include "base/message_loop/message_loop.h"
#include "base/time/time.h"
#include "components/gles2/gpu_state.h"
#include "components/native_viewport/platform_viewport_headless.h"
#include "mojo/converters/geometry/geometry_type_converters.h"
#include "third_party/mojo/src/mojo/public/cpp/application/interface_factory.h"
#include "ui/events/event.h"
namespace native_viewport {
NativeViewportImpl::NativeViewportImpl(
bool is_headless,
const scoped_refptr<gles2::GpuState>& gpu_state,
mojo::InterfaceRequest<mojo::NativeViewport> request)
: is_headless_(is_headless),
context_provider_(gpu_state),
sent_metrics_(false),
metrics_(mojo::ViewportMetrics::New()),
binding_(this, request.Pass()),
weak_factory_(this) {
binding_.set_error_handler(this);
}
NativeViewportImpl::~NativeViewportImpl() {
// Destroy the NativeViewport early on as it may call us back during
// destruction and we want to be in a known state.
platform_viewport_.reset();
}
void NativeViewportImpl::Create(mojo::SizePtr size,
const CreateCallback& callback) {
create_callback_ = callback;
metrics_->size = size.Clone();
if (is_headless_)
platform_viewport_ = PlatformViewportHeadless::Create(this);
else
platform_viewport_ = PlatformViewport::Create(this);
platform_viewport_->Init(gfx::Rect(size.To<gfx::Size>()));
}
void NativeViewportImpl::RequestMetrics(
const RequestMetricsCallback& callback) {
if (!sent_metrics_) {
callback.Run(metrics_.Clone());
sent_metrics_ = true;
return;
}
metrics_callback_ = callback;
}
void NativeViewportImpl::Show() {
platform_viewport_->Show();
}
void NativeViewportImpl::Hide() {
platform_viewport_->Hide();
}
void NativeViewportImpl::Close() {
DCHECK(platform_viewport_);
platform_viewport_->Close();
}
void NativeViewportImpl::SetSize(mojo::SizePtr size) {
platform_viewport_->SetBounds(gfx::Rect(size.To<gfx::Size>()));
}
void NativeViewportImpl::GetContextProvider(
mojo::InterfaceRequest<mojo::ContextProvider> request) {
context_provider_.Bind(request.Pass());
}
void NativeViewportImpl::SetEventDispatcher(
mojo::NativeViewportEventDispatcherPtr dispatcher) {
event_dispatcher_ = dispatcher.Pass();
}
void NativeViewportImpl::OnMetricsChanged(mojo::ViewportMetricsPtr metrics) {
if (metrics_->Equals(*metrics))
return;
metrics_ = metrics.Pass();
sent_metrics_ = false;
if (!metrics_callback_.is_null()) {
metrics_callback_.Run(metrics_.Clone());
metrics_callback_.reset();
sent_metrics_ = true;
}
}
void NativeViewportImpl::OnAcceleratedWidgetAvailable(
gfx::AcceleratedWidget widget,
float device_pixel_ratio) {
metrics_->device_pixel_ratio = device_pixel_ratio;
context_provider_.SetAcceleratedWidget(widget);
// TODO: The metrics here might not match the actual window size on android
// where we don't know the actual size until the first OnMetricsChanged call.
create_callback_.Run(metrics_.Clone());
sent_metrics_ = true;
create_callback_.reset();
}
void NativeViewportImpl::OnAcceleratedWidgetDestroyed() {
context_provider_.SetAcceleratedWidget(gfx::kNullAcceleratedWidget);
}
bool NativeViewportImpl::OnEvent(mojo::EventPtr event) {
if (event.is_null() || !event_dispatcher_.get())
return false;
mojo::NativeViewportEventDispatcher::OnEventCallback callback;
switch (event->action) {
case mojo::EVENT_TYPE_POINTER_MOVE: {
// TODO(sky): add logic to remember last event location and not send if
// the same.
if (pointers_waiting_on_ack_.count(event->pointer_data->pointer_id))
return false;
pointers_waiting_on_ack_.insert(event->pointer_data->pointer_id);
callback =
base::Bind(&NativeViewportImpl::AckEvent, weak_factory_.GetWeakPtr(),
event->pointer_data->pointer_id);
break;
}
case mojo::EVENT_TYPE_POINTER_CANCEL:
pointers_waiting_on_ack_.clear();
break;
case mojo::EVENT_TYPE_POINTER_UP:
pointers_waiting_on_ack_.erase(event->pointer_data->pointer_id);
break;
default:
break;
}
event_dispatcher_->OnEvent(event.Pass(), callback);
return false;
}
void NativeViewportImpl::OnDestroyed() {
// This will signal a connection error and cause us to delete |this|.
binding_.Close();
}
void NativeViewportImpl::OnConnectionError() {
binding_.set_error_handler(nullptr);
delete this;
}
void NativeViewportImpl::AckEvent(int32 pointer_id) {
pointers_waiting_on_ack_.erase(pointer_id);
}
} // namespace native_viewport
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