1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef WEBKIT_CHILD_WEBKITPLATFORMSUPPORT_IMPL_H_ 6 #define WEBKIT_CHILD_WEBKITPLATFORMSUPPORT_IMPL_H_ 7 8 #include "base/compiler_specific.h" 9 #include "base/debug/trace_event.h" 10 #include "base/platform_file.h" 11 #include "base/timer/timer.h" 12 #include "third_party/WebKit/public/platform/Platform.h" 13 #include "third_party/WebKit/public/platform/WebURLError.h" 14 #include "ui/base/layout.h" 15 #include "webkit/child/resource_loader_bridge.h" 16 #include "webkit/child/webkit_child_export.h" 17 18 namespace base { 19 class MessageLoop; 20 } 21 22 namespace blink { 23 class WebSocketStreamHandle; 24 } 25 26 namespace webkit_glue { 27 28 class WebSocketStreamHandleDelegate; 29 class WebSocketStreamHandleBridge; 30 31 class WEBKIT_CHILD_EXPORT WebKitPlatformSupportImpl : 32 NON_EXPORTED_BASE(public blink::Platform) { 33 public: 34 WebKitPlatformSupportImpl(); 35 virtual ~WebKitPlatformSupportImpl(); 36 37 // Platform methods (partial implementation): 38 virtual base::PlatformFile databaseOpenFile( 39 const blink::WebString& vfs_file_name, int desired_flags); 40 virtual int databaseDeleteFile(const blink::WebString& vfs_file_name, 41 bool sync_dir); 42 virtual long databaseGetFileAttributes( 43 const blink::WebString& vfs_file_name); 44 virtual long long databaseGetFileSize(const blink::WebString& vfs_file_name); 45 virtual long long databaseGetSpaceAvailableForOrigin( 46 const blink::WebString& origin_identifier); 47 virtual blink::WebString signedPublicKeyAndChallengeString( 48 unsigned key_size_index, const blink::WebString& challenge, 49 const blink::WebURL& url); 50 virtual size_t memoryUsageMB(); 51 virtual size_t actualMemoryUsageMB(); 52 virtual size_t physicalMemoryMB(); 53 virtual size_t numberOfProcessors(); 54 55 virtual void startHeapProfiling(const blink::WebString& prefix); 56 virtual void stopHeapProfiling() OVERRIDE; 57 virtual void dumpHeapProfiling(const blink::WebString& reason); 58 virtual blink::WebString getHeapProfile() OVERRIDE; 59 60 virtual bool processMemorySizesInBytes(size_t* private_bytes, 61 size_t* shared_bytes); 62 virtual bool memoryAllocatorWasteInBytes(size_t* size); 63 virtual size_t maxDecodedImageBytes() OVERRIDE; 64 virtual blink::WebURLLoader* createURLLoader(); 65 virtual blink::WebSocketStreamHandle* createSocketStreamHandle(); 66 virtual blink::WebString userAgent(const blink::WebURL& url); 67 virtual blink::WebData parseDataURL( 68 const blink::WebURL& url, blink::WebString& mimetype, 69 blink::WebString& charset); 70 virtual blink::WebURLError cancelledError(const blink::WebURL& url) const; 71 virtual void decrementStatsCounter(const char* name); 72 virtual void incrementStatsCounter(const char* name); 73 virtual void histogramCustomCounts( 74 const char* name, int sample, int min, int max, int bucket_count); 75 virtual void histogramEnumeration( 76 const char* name, int sample, int boundary_value); 77 virtual void histogramSparse(const char* name, int sample); 78 virtual const unsigned char* getTraceCategoryEnabledFlag( 79 const char* category_name); 80 virtual long* getTraceSamplingState(const unsigned thread_bucket); 81 virtual TraceEventHandle addTraceEvent( 82 char phase, 83 const unsigned char* category_group_enabled, 84 const char* name, 85 unsigned long long id, 86 int num_args, 87 const char** arg_names, 88 const unsigned char* arg_types, 89 const unsigned long long* arg_values, 90 unsigned char flags); 91 virtual void updateTraceEventDuration( 92 const unsigned char* category_group_enabled, 93 const char* name, 94 TraceEventHandle); 95 virtual blink::WebData loadResource(const char* name); 96 virtual blink::WebString queryLocalizedString( 97 blink::WebLocalizedString::Name name); 98 virtual blink::WebString queryLocalizedString( 99 blink::WebLocalizedString::Name name, int numeric_value); 100 virtual blink::WebString queryLocalizedString( 101 blink::WebLocalizedString::Name name, const blink::WebString& value); 102 virtual blink::WebString queryLocalizedString( 103 blink::WebLocalizedString::Name name, 104 const blink::WebString& value1, const blink::WebString& value2); 105 virtual void suddenTerminationChanged(bool enabled) { } 106 virtual double currentTime(); 107 virtual double monotonicallyIncreasingTime(); 108 virtual void cryptographicallyRandomValues( 109 unsigned char* buffer, size_t length); 110 virtual void setSharedTimerFiredFunction(void (*func)()); 111 virtual void setSharedTimerFireInterval(double interval_seconds); 112 virtual void stopSharedTimer(); 113 virtual void callOnMainThread(void (*func)(void*), void* context); 114 115 116 // Embedder functions. The following are not implemented by the glue layer and 117 // need to be specialized by the embedder. 118 119 // Gets a localized string given a message id. Returns an empty string if the 120 // message id is not found. 121 virtual base::string16 GetLocalizedString(int message_id) = 0; 122 123 // Returns the raw data for a resource. This resource must have been 124 // specified as BINDATA in the relevant .rc file. 125 virtual base::StringPiece GetDataResource(int resource_id, 126 ui::ScaleFactor scale_factor) = 0; 127 128 // Creates a ResourceLoaderBridge. 129 virtual ResourceLoaderBridge* CreateResourceLoader( 130 const ResourceLoaderBridge::RequestInfo& request_info) = 0; 131 // Creates a WebSocketStreamHandleBridge. 132 virtual WebSocketStreamHandleBridge* CreateWebSocketStreamBridge( 133 blink::WebSocketStreamHandle* handle, 134 WebSocketStreamHandleDelegate* delegate) = 0; 135 136 void SuspendSharedTimer(); 137 void ResumeSharedTimer(); 138 virtual void OnStartSharedTimer(base::TimeDelta delay) {} 139 140 private: 141 void DoTimeout() { 142 if (shared_timer_func_ && !shared_timer_suspended_) 143 shared_timer_func_(); 144 } 145 146 base::MessageLoop* main_loop_; 147 base::OneShotTimer<WebKitPlatformSupportImpl> shared_timer_; 148 void (*shared_timer_func_)(); 149 double shared_timer_fire_time_; 150 bool shared_timer_fire_time_was_set_while_suspended_; 151 int shared_timer_suspended_; // counter 152 }; 153 154 } // namespace webkit_glue 155 156 #endif // WEBKIT_CHILD_WEBKITPLATFORMSUPPORT_IMPL_H_ 157
