flutter_flutter/viewer/document_view.cc
James Robinson e5cb39f814 Remove mojo.SurfacesService interface in favor of mojo.Surface directly
Most of the callers have been updated to the new flow already. This
updates the rest and removes the deprecated interface to simplify the
flows in preparation for de-Clienting this interface.

Chromium caller updated to not use this interface here:
https://codereview.chromium.org/869343004/

R=sky@chromium.org
BUG=451319

Review URL: https://codereview.chromium.org/882083003
2015-01-30 13:02:48 -08:00

390 lines
13 KiB
C++

// 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 "sky/viewer/document_view.h"
#include "base/bind.h"
#include "base/location.h"
#include "base/message_loop/message_loop_proxy.h"
#include "base/single_thread_task_runner.h"
#include "base/strings/string_util.h"
#include "base/thread_task_runner_handle.h"
#include "mojo/converters/geometry/geometry_type_converters.h"
#include "mojo/converters/input_events/input_events_type_converters.h"
#include "mojo/public/cpp/application/connect.h"
#include "mojo/public/cpp/system/data_pipe.h"
#include "mojo/public/interfaces/application/shell.mojom.h"
#include "mojo/services/view_manager/public/cpp/view.h"
#include "mojo/services/view_manager/public/cpp/view_manager.h"
#include "skia/ext/refptr.h"
#include "sky/compositor/layer.h"
#include "sky/compositor/layer_host.h"
#include "sky/compositor/rasterizer_bitmap.h"
#include "sky/compositor/rasterizer_ganesh.h"
#include "sky/engine/public/platform/Platform.h"
#include "sky/engine/public/platform/WebHTTPHeaderVisitor.h"
#include "sky/engine/public/platform/WebInputEvent.h"
#include "sky/engine/public/platform/WebScreenInfo.h"
#include "sky/engine/public/web/Sky.h"
#include "sky/engine/public/web/WebConsoleMessage.h"
#include "sky/engine/public/web/WebDocument.h"
#include "sky/engine/public/web/WebElement.h"
#include "sky/engine/public/web/WebLocalFrame.h"
#include "sky/engine/public/web/WebScriptSource.h"
#include "sky/engine/public/web/WebSettings.h"
#include "sky/engine/public/web/WebView.h"
#include "sky/engine/v8_inspector/inspector_backend_mojo.h"
#include "sky/engine/v8_inspector/inspector_host.h"
#include "sky/viewer/converters/input_event_types.h"
#include "sky/viewer/converters/url_request_types.h"
#include "sky/viewer/internals.h"
#include "sky/viewer/platform/weburlloader_impl.h"
#include "sky/viewer/runtime_flags.h"
#include "sky/viewer/script/script_runner.h"
#include "third_party/skia/include/core/SkCanvas.h"
#include "third_party/skia/include/core/SkColor.h"
#include "third_party/skia/include/core/SkDevice.h"
#include "ui/events/gestures/gesture_recognizer.h"
#include "v8/include/v8.h"
namespace sky {
namespace {
void ConfigureSettings(blink::WebSettings* settings) {
settings->setDefaultFixedFontSize(13);
settings->setDefaultFontSize(16);
settings->setLoadsImagesAutomatically(true);
}
mojo::Target WebNavigationPolicyToNavigationTarget(
blink::WebNavigationPolicy policy) {
switch (policy) {
case blink::WebNavigationPolicyCurrentTab:
return mojo::TARGET_SOURCE_NODE;
case blink::WebNavigationPolicyNewBackgroundTab:
case blink::WebNavigationPolicyNewForegroundTab:
case blink::WebNavigationPolicyNewWindow:
case blink::WebNavigationPolicyNewPopup:
return mojo::TARGET_NEW_NODE;
default:
return mojo::TARGET_DEFAULT;
}
}
ui::EventType ConvertEventTypeToUIEventType(blink::WebInputEvent::Type type) {
if (type == blink::WebInputEvent::PointerDown)
return ui::ET_TOUCH_PRESSED;
if (type == blink::WebInputEvent::PointerUp)
return ui::ET_TOUCH_RELEASED;
if (type == blink::WebInputEvent::PointerMove)
return ui::ET_TOUCH_MOVED;
DCHECK(type == blink::WebInputEvent::PointerCancel);
return ui::ET_TOUCH_CANCELLED;
}
scoped_ptr<ui::TouchEvent> ConvertToUITouchEvent(
const blink::WebInputEvent& event,
float device_pixel_ratio) {
if (!blink::WebInputEvent::isPointerEventType(event.type))
return nullptr;
const blink::WebPointerEvent& pointer_event =
static_cast<const blink::WebPointerEvent&>(event);
return make_scoped_ptr(new ui::TouchEvent(
ConvertEventTypeToUIEventType(event.type),
gfx::PointF(pointer_event.x * device_pixel_ratio,
pointer_event.y * device_pixel_ratio),
pointer_event.pointer,
base::TimeDelta::FromMillisecondsD(pointer_event.timeStampMS)));
}
} // namespace
static int s_next_debugger_id = 1;
DocumentView::DocumentView(
mojo::InterfaceRequest<mojo::ServiceProvider> services,
mojo::ServiceProviderPtr exported_services,
mojo::URLResponsePtr response,
mojo::Shell* shell)
: response_(response.Pass()),
exported_services_(services.Pass()),
shell_(shell),
web_view_(nullptr),
root_(nullptr),
view_manager_client_factory_(shell_, this),
inspector_service_factory_(this),
bitmap_rasterizer_(nullptr),
debugger_id_(s_next_debugger_id++),
weak_factory_(this) {
exported_services_.AddService(&view_manager_client_factory_);
inspector_service_provider_impl_.AddService(&inspector_service_factory_);
}
DocumentView::~DocumentView() {
if (web_view_)
web_view_->close();
if (root_)
root_->RemoveObserver(this);
ui::GestureRecognizer::Get()->CleanupStateForConsumer(this);
}
base::WeakPtr<DocumentView> DocumentView::GetWeakPtr() {
return weak_factory_.GetWeakPtr();
}
void DocumentView::OnEmbed(
mojo::View* root,
mojo::InterfaceRequest<mojo::ServiceProvider> services,
mojo::ServiceProviderPtr exposed_services) {
root_ = root;
imported_services_ = exposed_services.Pass();
navigator_host_.set_service_provider(imported_services_.get());
if (services.is_pending())
inspector_service_provider_impl_.Bind(services.Pass());
Load(response_.Pass());
UpdateRootSizeAndViewportMetrics(root_->bounds());
// TODO(abarth): We should ask the view whether it is focused instead of
// assuming that we're focused.
web_view_->setFocus(true);
root_->AddObserver(this);
}
void DocumentView::OnViewManagerDisconnected(mojo::ViewManager* view_manager) {
// TODO(aa): Need to figure out how shutdown works.
}
void DocumentView::Load(mojo::URLResponsePtr response) {
web_view_ = blink::WebView::create(this);
ConfigureSettings(web_view_->settings());
web_view_->setMainFrame(blink::WebLocalFrame::create(this));
web_view_->mainFrame()->load(GURL(response->url), response->body.Pass());
}
void DocumentView::initializeLayerTreeView() {
layer_host_.reset(new LayerHost(this));
root_layer_ = make_scoped_refptr(new Layer(this));
root_layer_->set_rasterizer(CreateRasterizer());
layer_host_->SetRootLayer(root_layer_);
}
scoped_ptr<Rasterizer> DocumentView::CreateRasterizer() {
if (!RuntimeFlags::Get().testing())
return make_scoped_ptr(new RasterizerGanesh(layer_host_.get()));
// TODO(abarth): If we have more than one layer, we'll need to re-think how
// we capture pixels for testing;
DCHECK(!bitmap_rasterizer_);
bitmap_rasterizer_ = new RasterizerBitmap(layer_host_.get());
return make_scoped_ptr(bitmap_rasterizer_);
}
void DocumentView::GetPixelsForTesting(std::vector<unsigned char>* pixels) {
DCHECK(RuntimeFlags::Get().testing()) << "Requires testing runtime flag";
DCHECK(root_layer_) << "The root layer owns the rasterizer";
return bitmap_rasterizer_->GetPixelsForTesting(pixels);
}
mojo::Shell* DocumentView::GetShell() {
return shell_;
}
void DocumentView::BeginFrame(base::TimeTicks frame_time) {
double frame_time_sec = (frame_time - base::TimeTicks()).InSecondsF();
double deadline_sec = frame_time_sec;
double interval_sec = 1.0/60;
blink::WebBeginFrameArgs web_begin_frame_args(
frame_time_sec, deadline_sec, interval_sec);
web_view_->beginFrame(web_begin_frame_args);
web_view_->layout();
blink::WebSize size = web_view_->size();
float device_pixel_ratio = GetDevicePixelRatio();
root_layer_->SetSize(gfx::Size(size.width * device_pixel_ratio,
size.height * device_pixel_ratio));
}
void DocumentView::OnSurfaceIdAvailable(mojo::SurfaceIdPtr surface_id) {
if (root_)
root_->SetSurfaceId(surface_id.Pass());
}
void DocumentView::PaintContents(SkCanvas* canvas, const gfx::Rect& clip) {
blink::WebRect rect(clip.x(), clip.y(), clip.width(), clip.height());
web_view_->paint(canvas, rect);
}
void DocumentView::scheduleVisualUpdate() {
DCHECK(web_view_);
layer_host_->SetNeedsAnimate();
}
blink::WebScreenInfo DocumentView::screenInfo() {
DCHECK(root_);
auto& metrics = root_->viewport_metrics();
blink::WebScreenInfo screen;
screen.rect = blink::WebRect(0, 0, metrics.size->width, metrics.size->height);
screen.availableRect = screen.rect;
screen.deviceScaleFactor = metrics.device_pixel_ratio;
return screen;
}
mojo::View* DocumentView::createChildFrame() {
if (!root_)
return nullptr;
mojo::View* child = root_->view_manager()->CreateView();
child->SetVisible(true);
root_->AddChild(child);
return child;
}
void DocumentView::frameDetached(blink::WebFrame* frame) {
// |frame| is invalid after here.
frame->close();
}
float DocumentView::GetDevicePixelRatio() const {
if (root_)
return root_->viewport_metrics().device_pixel_ratio;
return 1.f;
}
blink::WebNavigationPolicy DocumentView::decidePolicyForNavigation(
const blink::WebFrameClient::NavigationPolicyInfo& info) {
navigator_host_->RequestNavigate(
WebNavigationPolicyToNavigationTarget(info.defaultPolicy),
mojo::URLRequest::From(info.urlRequest).Pass());
return blink::WebNavigationPolicyIgnore;
}
void DocumentView::didAddMessageToConsole(
const blink::WebConsoleMessage& message,
const blink::WebString& source_name,
unsigned source_line,
const blink::WebString& stack_trace) {
}
void DocumentView::didCreateScriptContext(blink::WebLocalFrame* frame,
v8::Handle<v8::Context> context) {
script_runner_.reset(new ScriptRunner(frame, context));
v8::Isolate* isolate = context->GetIsolate();
gin::Handle<Internals> internals = Internals::Create(isolate, this);
context->Global()->Set(gin::StringToV8(isolate, "internals"),
gin::ConvertToV8(isolate, internals));
}
blink::ServiceProvider& DocumentView::services() {
return *this;
}
mojo::NavigatorHost* DocumentView::NavigatorHost() {
return navigator_host_.get();
}
mojo::Shell* DocumentView::Shell() {
return shell_;
}
void DocumentView::OnViewBoundsChanged(mojo::View* view,
const mojo::Rect& old_bounds,
const mojo::Rect& new_bounds) {
DCHECK_EQ(view, root_);
UpdateRootSizeAndViewportMetrics(new_bounds);
}
void DocumentView::OnViewViewportMetricsChanged(
mojo::View* view,
const mojo::ViewportMetrics& old_metrics,
const mojo::ViewportMetrics& new_metrics) {
DCHECK_EQ(view, root_);
web_view_->setDeviceScaleFactor(GetDevicePixelRatio());
UpdateRootSizeAndViewportMetrics(root_->bounds());
}
void DocumentView::UpdateRootSizeAndViewportMetrics(
const mojo::Rect& new_bounds) {
float device_pixel_ratio = GetDevicePixelRatio();
web_view_->resize(blink::WebSize(new_bounds.width / device_pixel_ratio,
new_bounds.height / device_pixel_ratio));
}
void DocumentView::OnViewFocusChanged(mojo::View* gained_focus,
mojo::View* lost_focus) {
if (root_ == lost_focus) {
web_view_->setFocus(false);
} else if (root_ == gained_focus) {
web_view_->setFocus(true);
}
}
void DocumentView::OnViewDestroyed(mojo::View* view) {
DCHECK_EQ(view, root_);
root_ = nullptr;
}
void DocumentView::OnViewInputEvent(
mojo::View* view, const mojo::EventPtr& event) {
float device_pixel_ratio = GetDevicePixelRatio();
scoped_ptr<blink::WebInputEvent> web_event =
ConvertEvent(event, device_pixel_ratio);
if (!web_event)
return;
ui::GestureRecognizer* recognizer = ui::GestureRecognizer::Get();
scoped_ptr<ui::TouchEvent> touch_event =
ConvertToUITouchEvent(*web_event, device_pixel_ratio);
if (touch_event)
recognizer->ProcessTouchEventPreDispatch(*touch_event, this);
bool handled = web_view_->handleInputEvent(*web_event);
if (touch_event) {
ui::EventResult result = handled ? ui::ER_UNHANDLED : ui::ER_UNHANDLED;
if (auto gestures = recognizer->ProcessTouchEventPostDispatch(
*touch_event, result, this)) {
for (auto& gesture : *gestures) {
scoped_ptr<blink::WebInputEvent> gesture_event =
ConvertEvent(mojo::Event::From(*gesture), device_pixel_ratio);
if (gesture_event)
web_view_->handleInputEvent(*gesture_event);
}
}
}
}
class InspectorHostImpl : public inspector::InspectorHost {
public:
InspectorHostImpl(blink::WebView* web_view, mojo::Shell* shell)
: web_view_(web_view), shell_(shell) {}
virtual ~InspectorHostImpl() {}
mojo::Shell* GetShell() override { return shell_; }
v8::Isolate* GetIsolate() override { return blink::mainThreadIsolate(); }
v8::Local<v8::Context> GetContext() override {
return web_view_->mainFrame()->mainWorldScriptContext();
}
private:
blink::WebView* web_view_;
mojo::Shell* shell_;
};
void DocumentView::StartDebuggerInspectorBackend() {
if (!inspector_backend_) {
inspector_host_.reset(new InspectorHostImpl(web_view_, shell_));
inspector_backend_.reset(
new inspector::InspectorBackendMojo(inspector_host_.get()));
}
inspector_backend_->Connect();
}
} // namespace sky