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// 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_
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