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 WebKit { 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 WebKit::Platform) { 33 public: 34 WebKitPlatformSupportImpl(); 35 virtual ~WebKitPlatformSupportImpl(); 36 37 // Platform methods (partial implementation): 38 virtual base::PlatformFile databaseOpenFile( 39 const WebKit::WebString& vfs_file_name, int desired_flags); 40 virtual int databaseDeleteFile(const WebKit::WebString& vfs_file_name, 41 bool sync_dir); 42 virtual long databaseGetFileAttributes( 43 const WebKit::WebString& vfs_file_name); 44 virtual long long databaseGetFileSize(const WebKit::WebString& vfs_file_name); 45 virtual long long databaseGetSpaceAvailableForOrigin( 46 const WebKit::WebString& origin_identifier); 47 virtual WebKit::WebString signedPublicKeyAndChallengeString( 48 unsigned key_size_index, const WebKit::WebString& challenge, 49 const WebKit::WebURL& url); 50 virtual size_t memoryUsageMB(); 51 virtual size_t actualMemoryUsageMB(); 52 53 virtual void startHeapProfiling(const WebKit::WebString& prefix); 54 virtual void stopHeapProfiling() OVERRIDE; 55 virtual void dumpHeapProfiling(const WebKit::WebString& reason); 56 virtual WebKit::WebString getHeapProfile() OVERRIDE; 57 58 virtual bool processMemorySizesInBytes(size_t* private_bytes, 59 size_t* shared_bytes); 60 virtual bool memoryAllocatorWasteInBytes(size_t* size); 61 virtual WebKit::WebURLLoader* createURLLoader(); 62 virtual WebKit::WebSocketStreamHandle* createSocketStreamHandle(); 63 virtual WebKit::WebString userAgent(const WebKit::WebURL& url); 64 virtual WebKit::WebData parseDataURL( 65 const WebKit::WebURL& url, WebKit::WebString& mimetype, 66 WebKit::WebString& charset); 67 virtual WebKit::WebURLError cancelledError(const WebKit::WebURL& url) const; 68 virtual void decrementStatsCounter(const char* name); 69 virtual void incrementStatsCounter(const char* name); 70 virtual void histogramCustomCounts( 71 const char* name, int sample, int min, int max, int bucket_count); 72 virtual void histogramEnumeration( 73 const char* name, int sample, int boundary_value); 74 virtual void histogramSparse(const char* name, int sample); 75 virtual const unsigned char* getTraceCategoryEnabledFlag( 76 const char* category_name); 77 virtual long* getTraceSamplingState(const unsigned thread_bucket); 78 virtual void addTraceEvent( 79 char phase, 80 const unsigned char* category_group_enabled, 81 const char* name, 82 unsigned long long id, 83 int num_args, 84 const char** arg_names, 85 const unsigned char* arg_types, 86 const unsigned long long* arg_values, 87 unsigned char flags); 88 virtual WebKit::WebData loadResource(const char* name); 89 virtual WebKit::WebString queryLocalizedString( 90 WebKit::WebLocalizedString::Name name); 91 virtual WebKit::WebString queryLocalizedString( 92 WebKit::WebLocalizedString::Name name, int numeric_value); 93 virtual WebKit::WebString queryLocalizedString( 94 WebKit::WebLocalizedString::Name name, const WebKit::WebString& value); 95 virtual WebKit::WebString queryLocalizedString( 96 WebKit::WebLocalizedString::Name name, 97 const WebKit::WebString& value1, const WebKit::WebString& value2); 98 virtual void suddenTerminationChanged(bool enabled) { } 99 virtual double currentTime(); 100 virtual double monotonicallyIncreasingTime(); 101 virtual void cryptographicallyRandomValues( 102 unsigned char* buffer, size_t length); 103 virtual void setSharedTimerFiredFunction(void (*func)()); 104 virtual void setSharedTimerFireInterval(double interval_seconds); 105 virtual void stopSharedTimer(); 106 virtual void callOnMainThread(void (*func)(void*), void* context); 107 108 109 // Embedder functions. The following are not implemented by the glue layer and 110 // need to be specialized by the embedder. 111 112 // Gets a localized string given a message id. Returns an empty string if the 113 // message id is not found. 114 virtual base::string16 GetLocalizedString(int message_id) = 0; 115 116 // Returns the raw data for a resource. This resource must have been 117 // specified as BINDATA in the relevant .rc file. 118 virtual base::StringPiece GetDataResource(int resource_id, 119 ui::ScaleFactor scale_factor) = 0; 120 121 // Creates a ResourceLoaderBridge. 122 virtual ResourceLoaderBridge* CreateResourceLoader( 123 const ResourceLoaderBridge::RequestInfo& request_info) = 0; 124 // Creates a WebSocketStreamHandleBridge. 125 virtual WebSocketStreamHandleBridge* CreateWebSocketBridge( 126 WebKit::WebSocketStreamHandle* handle, 127 WebSocketStreamHandleDelegate* delegate) = 0; 128 129 void SuspendSharedTimer(); 130 void ResumeSharedTimer(); 131 virtual void OnStartSharedTimer(base::TimeDelta delay) {} 132 133 private: 134 void DoTimeout() { 135 if (shared_timer_func_ && !shared_timer_suspended_) 136 shared_timer_func_(); 137 } 138 139 base::MessageLoop* main_loop_; 140 base::OneShotTimer<WebKitPlatformSupportImpl> shared_timer_; 141 void (*shared_timer_func_)(); 142 double shared_timer_fire_time_; 143 bool shared_timer_fire_time_was_set_while_suspended_; 144 int shared_timer_suspended_; // counter 145 }; 146 147 } // namespace webkit_glue 148 149 #endif // WEBKIT_CHILD_WEBKITPLATFORMSUPPORT_IMPL_H_ 150
