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      1 /*
      2  * Copyright (C) 2010 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
     14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
     17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     23  * THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef WebFrame_h
     27 #define WebFrame_h
     28 
     29 #include "APIObject.h"
     30 #include "ImmutableArray.h"
     31 #include "WebFrameLoaderClient.h"
     32 #include <JavaScriptCore/JSBase.h>
     33 #include <WebCore/FrameLoaderClient.h>
     34 #include <WebCore/FrameLoaderTypes.h>
     35 #include <WebCore/PolicyChecker.h>
     36 #include <wtf/Forward.h>
     37 #include <wtf/PassRefPtr.h>
     38 #include <wtf/RefPtr.h>
     39 
     40 namespace WebCore {
     41     class Frame;
     42     class HTMLFrameOwnerElement;
     43     class KURL;
     44 }
     45 
     46 namespace WebKit {
     47 
     48 class InjectedBundleNodeHandle;
     49 class InjectedBundleRangeHandle;
     50 class InjectedBundleScriptWorld;
     51 class WebPage;
     52 
     53 class WebFrame : public APIObject {
     54 public:
     55     static const Type APIType = TypeBundleFrame;
     56 
     57     static PassRefPtr<WebFrame> createMainFrame(WebPage*);
     58     static PassRefPtr<WebFrame> createSubframe(WebPage*, const String& frameName, WebCore::HTMLFrameOwnerElement*);
     59     ~WebFrame();
     60 
     61     // Called when the FrameLoaderClient (and therefore the WebCore::Frame) is being torn down.
     62     void invalidate();
     63 
     64     WebPage* page() const;
     65     WebCore::Frame* coreFrame() const { return m_coreFrame; }
     66 
     67     uint64_t frameID() const { return m_frameID; }
     68 
     69     uint64_t setUpPolicyListener(WebCore::FramePolicyFunction);
     70     void invalidatePolicyListener();
     71     void didReceivePolicyDecision(uint64_t listenerID, WebCore::PolicyAction, uint64_t downloadID);
     72 
     73     void startDownload(const WebCore::ResourceRequest&);
     74     void convertHandleToDownload(WebCore::ResourceHandle*, const WebCore::ResourceRequest&, const WebCore::ResourceRequest& initialRequest, const WebCore::ResourceResponse&);
     75 
     76     String source() const;
     77     String contentsAsString() const;
     78     String selectionAsString() const;
     79 
     80     WebCore::IntSize size() const;
     81 
     82     // WKBundleFrame API and SPI functions
     83     bool isMainFrame() const;
     84     String name() const;
     85     String url() const;
     86     String innerText() const;
     87     bool isFrameSet() const;
     88     PassRefPtr<ImmutableArray> childFrames();
     89     JSValueRef computedStyleIncludingVisitedInfo(JSObjectRef element);
     90     JSGlobalContextRef jsContext();
     91     JSGlobalContextRef jsContextForWorld(InjectedBundleScriptWorld*);
     92     WebCore::IntRect contentBounds() const;
     93     WebCore::IntRect visibleContentBounds() const;
     94     WebCore::IntRect visibleContentBoundsExcludingScrollbars() const;
     95     WebCore::IntSize scrollOffset() const;
     96     bool hasHorizontalScrollbar() const;
     97     bool hasVerticalScrollbar() const;
     98     bool getDocumentBackgroundColor(double* red, double* green, double* blue, double* alpha);
     99 
    100     static WebFrame* frameForContext(JSContextRef);
    101 
    102     JSValueRef jsWrapperForWorld(InjectedBundleNodeHandle*, InjectedBundleScriptWorld*);
    103     JSValueRef jsWrapperForWorld(InjectedBundleRangeHandle*, InjectedBundleScriptWorld*);
    104 
    105     static String counterValue(JSObjectRef element);
    106     static String markerText(JSObjectRef element);
    107 
    108     unsigned numberOfActiveAnimations() const;
    109     bool pauseAnimationOnElementWithId(const String& animationName, const String& elementID, double time);
    110     void suspendAnimations();
    111     void resumeAnimations();
    112     String layerTreeAsText() const;
    113 
    114     unsigned pendingUnloadCount() const;
    115 
    116     bool allowsFollowingLink(const WebCore::KURL&) const;
    117 
    118     String provisionalURL() const;
    119     String suggestedFilenameForResourceWithURL(const WebCore::KURL&) const;
    120     String mimeTypeForResourceWithURL(const WebCore::KURL&) const;
    121 
    122     // Simple listener class used by plug-ins to know when frames finish or fail loading.
    123     class LoadListener {
    124     public:
    125         virtual ~LoadListener() { }
    126 
    127         virtual void didFinishLoad(WebFrame*) = 0;
    128         virtual void didFailLoad(WebFrame*, bool wasCancelled) = 0;
    129     };
    130     void setLoadListener(LoadListener* loadListener) { m_loadListener = loadListener; }
    131     LoadListener* loadListener() const { return m_loadListener; }
    132 
    133 private:
    134     static PassRefPtr<WebFrame> create();
    135     WebFrame();
    136 
    137     void init(WebPage*, const String& frameName, WebCore::HTMLFrameOwnerElement*);
    138 
    139     virtual Type type() const { return APIType; }
    140 
    141     WebCore::Frame* m_coreFrame;
    142 
    143     uint64_t m_policyListenerID;
    144     WebCore::FramePolicyFunction m_policyFunction;
    145     uint64_t m_policyDownloadID;
    146 
    147     WebFrameLoaderClient m_frameLoaderClient;
    148     LoadListener* m_loadListener;
    149 
    150     uint64_t m_frameID;
    151 };
    152 
    153 } // namespace WebKit
    154 
    155 #endif // WebFrame_h
    156