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      1 /*
      2  * Copyright (C) 2010 Google 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 are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef WebDevToolsAgentImpl_h
     32 #define WebDevToolsAgentImpl_h
     33 
     34 #include "core/inspector/InspectorClient.h"
     35 #include "core/inspector/InspectorFrontendChannel.h"
     36 
     37 #include "public/platform/WebSize.h"
     38 #include "public/platform/WebThread.h"
     39 #include "public/web/WebPageOverlay.h"
     40 #include "web/WebDevToolsAgentPrivate.h"
     41 #include "wtf/Forward.h"
     42 #include "wtf/OwnPtr.h"
     43 #include "wtf/Vector.h"
     44 
     45 namespace blink {
     46 
     47 class Document;
     48 class LocalFrame;
     49 class FrameView;
     50 class GraphicsContext;
     51 class InspectorClient;
     52 class InspectorController;
     53 class Node;
     54 class Page;
     55 class PlatformKeyboardEvent;
     56 class WebDevToolsAgentClient;
     57 class WebFrame;
     58 class WebLocalFrameImpl;
     59 class WebString;
     60 class WebURLRequest;
     61 class WebURLResponse;
     62 class WebViewImpl;
     63 struct WebMemoryUsageInfo;
     64 struct WebURLError;
     65 struct WebDevToolsMessageData;
     66 
     67 class WebDevToolsAgentImpl FINAL
     68     : public WebDevToolsAgentPrivate
     69     , public InspectorClient
     70     , public InspectorFrontendChannel
     71     , public WebPageOverlay
     72     , private WebThread::TaskObserver {
     73 public:
     74     WebDevToolsAgentImpl(WebViewImpl* webViewImpl, WebDevToolsAgentClient* client);
     75     virtual ~WebDevToolsAgentImpl();
     76 
     77     WebDevToolsAgentClient* client() { return m_client; }
     78 
     79     // WebDevToolsAgentPrivate implementation.
     80     virtual void didCreateScriptContext(WebLocalFrameImpl*, int worldId) OVERRIDE;
     81     virtual bool handleInputEvent(Page*, const WebInputEvent&) OVERRIDE;
     82     virtual void didLayout() OVERRIDE;
     83 
     84     // WebDevToolsAgent implementation.
     85     virtual void attach(const WebString& hostId) OVERRIDE;
     86     virtual void reattach(const WebString& hostId, const WebString& savedState) OVERRIDE;
     87     virtual void detach() OVERRIDE;
     88     virtual void continueProgram() OVERRIDE;
     89     virtual void didBeginFrame(int frameId) OVERRIDE;
     90     virtual void didCancelFrame() OVERRIDE;
     91     virtual void willComposite() OVERRIDE;
     92     virtual void didComposite() OVERRIDE;
     93     virtual void dispatchOnInspectorBackend(const WebString& message) OVERRIDE;
     94     virtual void inspectElementAt(const WebPoint&) OVERRIDE;
     95     virtual void evaluateInWebInspector(long callId, const WebString& script) OVERRIDE;
     96     virtual void setLayerTreeId(int) OVERRIDE;
     97     virtual void processGPUEvent(const GPUEvent&) OVERRIDE;
     98 
     99     // InspectorClient implementation.
    100     virtual void highlight() OVERRIDE;
    101     virtual void hideHighlight() OVERRIDE;
    102     virtual void updateInspectorStateCookie(const WTF::String&) OVERRIDE;
    103     virtual void sendMessageToFrontend(PassRefPtr<JSONObject> message) OVERRIDE;
    104     virtual void flush() OVERRIDE;
    105     virtual void resumeStartup() OVERRIDE;
    106 
    107     virtual void setDeviceMetricsOverride(int width, int height, float deviceScaleFactor, bool mobile, bool fitWindow, float scale, float offsetX, float offsetY) OVERRIDE;
    108     virtual void clearDeviceMetricsOverride() OVERRIDE;
    109     virtual void setTouchEventEmulationEnabled(bool) OVERRIDE;
    110 
    111     virtual void setTraceEventCallback(const WTF::String& categoryFilter, TraceEventCallback) OVERRIDE;
    112     virtual void resetTraceEventCallback() OVERRIDE;
    113     virtual void enableTracing(const WTF::String& categoryFilter) OVERRIDE;
    114     virtual void disableTracing() OVERRIDE;
    115 
    116     virtual void startGPUEventsRecording() OVERRIDE;
    117     virtual void stopGPUEventsRecording() OVERRIDE;
    118 
    119     virtual void dispatchKeyEvent(const PlatformKeyboardEvent&) OVERRIDE;
    120     virtual void dispatchMouseEvent(const PlatformMouseEvent&) OVERRIDE;
    121 
    122     // WebPageOverlay
    123     virtual void paintPageOverlay(WebCanvas*) OVERRIDE;
    124 
    125     void flushPendingFrontendMessages();
    126 
    127 private:
    128     // WebThread::TaskObserver
    129     virtual void willProcessTask() OVERRIDE;
    130     virtual void didProcessTask() OVERRIDE;
    131 
    132     void enableMobileEmulation();
    133     void disableMobileEmulation();
    134     void updatePageScaleFactorLimits();
    135 
    136     InspectorController* inspectorController();
    137     LocalFrame* mainFrame();
    138 
    139     int m_debuggerId;
    140     int m_layerTreeId;
    141     WebDevToolsAgentClient* m_client;
    142     WebViewImpl* m_webViewImpl;
    143     bool m_attached;
    144     bool m_generatingEvent;
    145 
    146     bool m_webViewDidLayoutOnceAfterLoad;
    147 
    148     bool m_deviceMetricsEnabled;
    149     bool m_emulateMobileEnabled;
    150     bool m_originalViewportEnabled;
    151     bool m_isOverlayScrollbarsEnabled;
    152 
    153     float m_originalMinimumPageScaleFactor;
    154     float m_originalMaximumPageScaleFactor;
    155     bool m_pageScaleLimitsOverriden;
    156 
    157     bool m_touchEventEmulationEnabled;
    158     OwnPtr<IntPoint> m_lastPinchAnchorCss;
    159     OwnPtr<IntPoint> m_lastPinchAnchorDip;
    160 
    161     typedef Vector<RefPtr<JSONObject> > FrontendMessageQueue;
    162     FrontendMessageQueue m_frontendMessageQueue;
    163 };
    164 
    165 } // namespace blink
    166 
    167 #endif
    168