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      1 /*
      2  * Copyright (C) 2010 Google Inc. All rights reserved.
      3  * Copyright (C) 2012 Intel Inc. All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are
      7  * met:
      8  *
      9  *     * Redistributions of source code must retain the above copyright
     10  * notice, this list of conditions and the following disclaimer.
     11  *     * Redistributions in binary form must reproduce the above
     12  * copyright notice, this list of conditions and the following disclaimer
     13  * in the documentation and/or other materials provided with the
     14  * distribution.
     15  *     * Neither the name of Google Inc. nor the names of its
     16  * contributors may be used to endorse or promote products derived from
     17  * this software without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef Performance_h
     33 #define Performance_h
     34 
     35 #include "bindings/v8/ScriptWrappable.h"
     36 #include "core/events/EventTarget.h"
     37 #include "core/frame/DOMWindowProperty.h"
     38 #include "core/timing/MemoryInfo.h"
     39 #include "core/timing/PerformanceEntry.h"
     40 #include "core/timing/PerformanceNavigation.h"
     41 #include "core/timing/PerformanceTiming.h"
     42 #include "platform/heap/Handle.h"
     43 #include "wtf/PassRefPtr.h"
     44 #include "wtf/RefCounted.h"
     45 #include "wtf/RefPtr.h"
     46 #include "wtf/text/WTFString.h"
     47 
     48 namespace WebCore {
     49 
     50 class Document;
     51 class ExceptionState;
     52 class ResourceRequest;
     53 class ResourceResponse;
     54 class ResourceTimingInfo;
     55 class UserTiming;
     56 
     57 typedef WillBeHeapVector<RefPtrWillBeMember<PerformanceEntry> > PerformanceEntryVector;
     58 
     59 class Performance FINAL : public RefCountedWillBeRefCountedGarbageCollected<Performance>, public ScriptWrappable, public DOMWindowProperty, public EventTargetWithInlineData {
     60     REFCOUNTED_EVENT_TARGET(Performance);
     61     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(Performance);
     62 public:
     63     static PassRefPtrWillBeRawPtr<Performance> create(LocalFrame* frame)
     64     {
     65         return adoptRefWillBeRefCountedGarbageCollected(new Performance(frame));
     66     }
     67     virtual ~Performance();
     68 
     69     virtual const AtomicString& interfaceName() const OVERRIDE;
     70     virtual ExecutionContext* executionContext() const OVERRIDE;
     71 
     72     PassRefPtrWillBeRawPtr<MemoryInfo> memory() const;
     73     PerformanceNavigation* navigation() const;
     74     PerformanceTiming* timing() const;
     75     double now() const;
     76 
     77     PerformanceEntryVector getEntries() const;
     78     PerformanceEntryVector getEntriesByType(const String& entryType);
     79     PerformanceEntryVector getEntriesByName(const String& name, const String& entryType);
     80 
     81     void webkitClearResourceTimings();
     82     void webkitSetResourceTimingBufferSize(unsigned);
     83 
     84     DEFINE_ATTRIBUTE_EVENT_LISTENER(webkitresourcetimingbufferfull);
     85 
     86     void addResourceTiming(const ResourceTimingInfo&, Document*);
     87 
     88     void mark(const String& markName, ExceptionState&);
     89     void clearMarks(const String& markName);
     90 
     91     void measure(const String& measureName, const String& startMark, const String& endMark, ExceptionState&);
     92     void clearMeasures(const String& measureName);
     93 
     94     virtual void trace(Visitor*) OVERRIDE;
     95 
     96 private:
     97     explicit Performance(LocalFrame*);
     98 
     99     bool isResourceTimingBufferFull();
    100     void addResourceTimingBuffer(PassRefPtrWillBeRawPtr<PerformanceEntry>);
    101 
    102     mutable RefPtrWillBeMember<PerformanceNavigation> m_navigation;
    103     mutable RefPtrWillBeMember<PerformanceTiming> m_timing;
    104 
    105     PerformanceEntryVector m_resourceTimingBuffer;
    106     unsigned m_resourceTimingBufferSize;
    107     double m_referenceTime;
    108 
    109     RefPtrWillBeMember<UserTiming> m_userTiming;
    110 };
    111 
    112 }
    113 
    114 #endif // Performance_h
    115