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This CL makes it possible to run Sky apps offline by introducing new DartLibraryProvider subclasses, specifically one that can load directly from the file system. A future CL will expand this functionality to work with asset bundles as well. Currently, the only platform that uses this functionality is Linux, which can now load a simple Sky app without even loading a network stack. Making this work on other platforms is work for future CLs. TBR=eseidel@chromium.org Review URL: https://codereview.chromium.org/1203143004.
129 lines
4.0 KiB
C++
129 lines
4.0 KiB
C++
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef SKY_SHELL_UI_ENGINE_H_
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#define SKY_SHELL_UI_ENGINE_H_
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#include "base/macros.h"
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#include "base/memory/scoped_ptr.h"
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#include "base/memory/weak_ptr.h"
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#include "base/single_thread_task_runner.h"
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#include "mojo/public/cpp/bindings/binding.h"
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#include "mojo/public/cpp/system/core.h"
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#include "mojo/public/interfaces/application/service_provider.mojom.h"
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#include "mojo/services/navigation/public/interfaces/navigation.mojom.h"
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#include "skia/ext/refptr.h"
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#include "sky/engine/public/platform/ServiceProvider.h"
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#include "sky/engine/public/sky/sky_view.h"
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#include "sky/engine/public/sky/sky_view_client.h"
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#include "sky/engine/public/web/WebFrameClient.h"
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#include "sky/engine/public/web/WebViewClient.h"
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#include "sky/shell/gpu_delegate.h"
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#include "sky/shell/ui_delegate.h"
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#include "sky/shell/service_provider.h"
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#include "third_party/skia/include/core/SkPicture.h"
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#include "ui/gfx/geometry/size.h"
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namespace sky {
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class PlatformImpl;
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namespace shell {
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class Animator;
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class Engine : public UIDelegate,
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public ViewportObserver,
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public blink::ServiceProvider,
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public mojo::NavigatorHost,
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public blink::WebFrameClient,
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public blink::WebViewClient,
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public blink::SkyViewClient {
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public:
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struct Config {
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Config();
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~Config();
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ServiceProviderContext* service_provider_context;
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base::WeakPtr<GPUDelegate> gpu_delegate;
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scoped_refptr<base::SingleThreadTaskRunner> gpu_task_runner;
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};
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explicit Engine(const Config& config);
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~Engine() override;
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base::WeakPtr<Engine> GetWeakPtr();
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static void Init(ServiceProviderContext* service_provider_context);
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void BeginFrame(base::TimeTicks frame_time);
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skia::RefPtr<SkPicture> Paint();
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private:
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// UIDelegate methods:
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void ConnectToViewportObserver(
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mojo::InterfaceRequest<ViewportObserver> request) override;
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void OnAcceleratedWidgetAvailable(gfx::AcceleratedWidget widget) override;
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void OnOutputSurfaceDestroyed() override;
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// ViewportObserver:
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void OnViewportMetricsChanged(int width, int height,
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float device_pixel_ratio) override;
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void OnInputEvent(InputEventPtr event) override;
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void RunFromNetwork(const mojo::String& url) override;
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void RunFromFile(const mojo::String& main,
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const mojo::String& package_root) override;
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void RunFromSnapshot(mojo::ScopedDataPipeConsumerHandle snapshot) override;
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// WebViewClient methods:
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void frameDetached(blink::WebFrame*) override;
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void initializeLayerTreeView() override;
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void scheduleVisualUpdate() override;
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blink::WebScreenInfo screenInfo() override;
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blink::ServiceProvider* services() override;
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// WebFrameClient methods:
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void didCreateIsolate(blink::WebLocalFrame* frame,
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Dart_Isolate isolate) override;
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// SkyViewClient methods:
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void ScheduleFrame() override;
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void DidCreateIsolate(Dart_Isolate isolate) override;
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// Services methods:
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mojo::NavigatorHost* NavigatorHost() override;
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// NavigatorHost methods:
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void RequestNavigate(mojo::Target target,
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mojo::URLRequestPtr request) override;
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void DidNavigateLocally(const mojo::String& url) override;
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void RequestNavigateHistory(int32_t delta) override;
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void RunFromLibrary(const mojo::String& name);
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void CloseWebViewIfNeeded();
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void LoadUsingWebView(const mojo::String& mojo_url);
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void UpdateSkyViewSize();
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void UpdateWebViewSize();
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Config config_;
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scoped_ptr<Animator> animator_;
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scoped_ptr<blink::DartLibraryProvider> dart_library_provider_;
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std::unique_ptr<blink::SkyView> sky_view_;
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blink::WebView* web_view_;
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float device_pixel_ratio_;
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gfx::Size physical_size_;
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mojo::Binding<ViewportObserver> viewport_observer_binding_;
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base::WeakPtrFactory<Engine> weak_factory_;
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DISALLOW_COPY_AND_ASSIGN(Engine);
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};
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} // namespace shell
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} // namespace sky
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#endif // SKY_SHELL_UI_ENGINE_H_
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