// Copyright (c) 2012 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 WEBKIT_CHILD_WEBKITPLATFORMSUPPORT_IMPL_H_ #define WEBKIT_CHILD_WEBKITPLATFORMSUPPORT_IMPL_H_ #include "base/compiler_specific.h" #include "base/debug/trace_event.h" #include "base/platform_file.h" #include "base/timer/timer.h" #include "third_party/WebKit/public/platform/Platform.h" #include "third_party/WebKit/public/platform/WebURLError.h" #include "ui/base/layout.h" #include "webkit/child/resource_loader_bridge.h" #include "webkit/child/webkit_child_export.h" namespace base { class MessageLoop; } namespace blink { class WebSocketStreamHandle; } namespace webkit_glue { class WebSocketStreamHandleDelegate; class WebSocketStreamHandleBridge; class WEBKIT_CHILD_EXPORT WebKitPlatformSupportImpl : NON_EXPORTED_BASE(public blink::Platform) { public: WebKitPlatformSupportImpl(); virtual ~WebKitPlatformSupportImpl(); // Platform methods (partial implementation): virtual base::PlatformFile databaseOpenFile( const blink::WebString& vfs_file_name, int desired_flags); virtual int databaseDeleteFile(const blink::WebString& vfs_file_name, bool sync_dir); virtual long databaseGetFileAttributes( const blink::WebString& vfs_file_name); virtual long long databaseGetFileSize(const blink::WebString& vfs_file_name); virtual long long databaseGetSpaceAvailableForOrigin( const blink::WebString& origin_identifier); virtual blink::WebString signedPublicKeyAndChallengeString( unsigned key_size_index, const blink::WebString& challenge, const blink::WebURL& url); virtual size_t memoryUsageMB(); virtual size_t actualMemoryUsageMB(); virtual size_t physicalMemoryMB(); virtual size_t numberOfProcessors(); virtual void startHeapProfiling(const blink::WebString& prefix); virtual void stopHeapProfiling() OVERRIDE; virtual void dumpHeapProfiling(const blink::WebString& reason); virtual blink::WebString getHeapProfile() OVERRIDE; virtual bool processMemorySizesInBytes(size_t* private_bytes, size_t* shared_bytes); virtual bool memoryAllocatorWasteInBytes(size_t* size); virtual size_t maxDecodedImageBytes() OVERRIDE; virtual blink::WebURLLoader* createURLLoader(); virtual blink::WebSocketStreamHandle* createSocketStreamHandle(); virtual blink::WebString userAgent(const blink::WebURL& url); virtual blink::WebData parseDataURL( const blink::WebURL& url, blink::WebString& mimetype, blink::WebString& charset); virtual blink::WebURLError cancelledError(const blink::WebURL& url) const; virtual void decrementStatsCounter(const char* name); virtual void incrementStatsCounter(const char* name); virtual void histogramCustomCounts( const char* name, int sample, int min, int max, int bucket_count); virtual void histogramEnumeration( const char* name, int sample, int boundary_value); virtual void histogramSparse(const char* name, int sample); virtual const unsigned char* getTraceCategoryEnabledFlag( const char* category_name); virtual long* getTraceSamplingState(const unsigned thread_bucket); virtual TraceEventHandle addTraceEvent( char phase, const unsigned char* category_group_enabled, const char* name, unsigned long long id, int num_args, const char** arg_names, const unsigned char* arg_types, const unsigned long long* arg_values, unsigned char flags); virtual void updateTraceEventDuration( const unsigned char* category_group_enabled, const char* name, TraceEventHandle); virtual blink::WebData loadResource(const char* name); virtual blink::WebString queryLocalizedString( blink::WebLocalizedString::Name name); virtual blink::WebString queryLocalizedString( blink::WebLocalizedString::Name name, int numeric_value); virtual blink::WebString queryLocalizedString( blink::WebLocalizedString::Name name, const blink::WebString& value); virtual blink::WebString queryLocalizedString( blink::WebLocalizedString::Name name, const blink::WebString& value1, const blink::WebString& value2); virtual void suddenTerminationChanged(bool enabled) { } virtual double currentTime(); virtual double monotonicallyIncreasingTime(); virtual void cryptographicallyRandomValues( unsigned char* buffer, size_t length); virtual void setSharedTimerFiredFunction(void (*func)()); virtual void setSharedTimerFireInterval(double interval_seconds); virtual void stopSharedTimer(); virtual void callOnMainThread(void (*func)(void*), void* context); // Embedder functions. The following are not implemented by the glue layer and // need to be specialized by the embedder. // Gets a localized string given a message id. Returns an empty string if the // message id is not found. virtual base::string16 GetLocalizedString(int message_id) = 0; // Returns the raw data for a resource. This resource must have been // specified as BINDATA in the relevant .rc file. virtual base::StringPiece GetDataResource(int resource_id, ui::ScaleFactor scale_factor) = 0; // Creates a ResourceLoaderBridge. virtual ResourceLoaderBridge* CreateResourceLoader( const ResourceLoaderBridge::RequestInfo& request_info) = 0; // Creates a WebSocketStreamHandleBridge. virtual WebSocketStreamHandleBridge* CreateWebSocketStreamBridge( blink::WebSocketStreamHandle* handle, WebSocketStreamHandleDelegate* delegate) = 0; void SuspendSharedTimer(); void ResumeSharedTimer(); virtual void OnStartSharedTimer(base::TimeDelta delay) {} private: void DoTimeout() { if (shared_timer_func_ && !shared_timer_suspended_) shared_timer_func_(); } base::MessageLoop* main_loop_; base::OneShotTimer<WebKitPlatformSupportImpl> shared_timer_; void (*shared_timer_func_)(); double shared_timer_fire_time_; bool shared_timer_fire_time_was_set_while_suspended_; int shared_timer_suspended_; // counter }; } // namespace webkit_glue #endif // WEBKIT_CHILD_WEBKITPLATFORMSUPPORT_IMPL_H_