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 WebView_h 27 #define WebView_h 28 29 #include "APIObject.h" 30 #include "PageClient.h" 31 #include "WKView.h" 32 #include "WebPageProxy.h" 33 #include "WebUndoClient.h" 34 #include <ShlObj.h> 35 #include <WebCore/COMPtr.h> 36 #include <WebCore/DragActions.h> 37 #include <WebCore/DragData.h> 38 #include <WebCore/WindowMessageListener.h> 39 #include <wtf/Forward.h> 40 #include <wtf/PassRefPtr.h> 41 #include <wtf/RefPtr.h> 42 43 interface IDropTargetHelper; 44 45 namespace WebKit { 46 47 class DrawingAreaProxy; 48 49 class WebView : public APIObject, public PageClient, WebCore::WindowMessageListener, public IDropTarget { 50 public: create(RECT rect,WebContext * context,WebPageGroup * pageGroup,HWND parentWindow)51 static PassRefPtr<WebView> create(RECT rect, WebContext* context, WebPageGroup* pageGroup, HWND parentWindow) 52 { 53 RefPtr<WebView> webView = adoptRef(new WebView(rect, context, pageGroup, parentWindow)); 54 webView->initialize(); 55 return webView; 56 } 57 ~WebView(); 58 window()59 HWND window() const { return m_window; } 60 void setParentWindow(HWND); 61 void windowAncestryDidChange(); 62 void setIsInWindow(bool); 63 void setIsVisible(bool); 64 void setOverrideCursor(HCURSOR); 65 void setInitialFocus(bool forward); 66 void setScrollOffsetOnNextResize(const WebCore::IntSize&); 67 void setFindIndicatorCallback(WKViewFindIndicatorCallback, void*); 68 WKViewFindIndicatorCallback getFindIndicatorCallback(void**); 69 void initialize(); 70 71 void initializeUndoClient(const WKViewUndoClient*); 72 void reapplyEditCommand(WebEditCommandProxy*); 73 void unapplyEditCommand(WebEditCommandProxy*); 74 75 // IUnknown 76 virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject); 77 virtual ULONG STDMETHODCALLTYPE AddRef(void); 78 virtual ULONG STDMETHODCALLTYPE Release(void); 79 80 // IDropTarget 81 virtual HRESULT STDMETHODCALLTYPE DragEnter(IDataObject* pDataObject, DWORD grfKeyState, POINTL pt, DWORD* pdwEffect); 82 virtual HRESULT STDMETHODCALLTYPE DragOver(DWORD grfKeyState, POINTL pt, DWORD* pdwEffect); 83 virtual HRESULT STDMETHODCALLTYPE DragLeave(); 84 virtual HRESULT STDMETHODCALLTYPE Drop(IDataObject* pDataObject, DWORD grfKeyState, POINTL pt, DWORD* pdwEffect); 85 page()86 WebPageProxy* page() const { return m_page.get(); } 87 88 private: 89 WebView(RECT, WebContext*, WebPageGroup*, HWND parentWindow); 90 type()91 virtual Type type() const { return TypeView; } 92 93 static bool registerWebViewWindowClass(); 94 static LRESULT CALLBACK WebViewWndProc(HWND, UINT, WPARAM, LPARAM); 95 LRESULT wndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam); 96 97 LRESULT onMouseEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled); 98 LRESULT onWheelEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled); 99 LRESULT onHorizontalScroll(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled); 100 LRESULT onVerticalScroll(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled); 101 LRESULT onGestureNotify(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled); 102 LRESULT onGesture(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled); 103 LRESULT onKeyEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled); 104 LRESULT onPaintEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled); 105 LRESULT onPrintClientEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled); 106 LRESULT onSizeEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled); 107 LRESULT onWindowPositionChangedEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled); 108 LRESULT onSetFocusEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled); 109 LRESULT onKillFocusEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled); 110 LRESULT onTimerEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled); 111 LRESULT onShowWindowEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled); 112 LRESULT onSetCursor(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled); 113 114 void paint(HDC, const WebCore::IntRect& dirtyRect); setWasActivatedByMouseEvent(bool flag)115 void setWasActivatedByMouseEvent(bool flag) { m_wasActivatedByMouseEvent = flag; } 116 bool onIMEStartComposition(); 117 bool onIMEComposition(LPARAM); 118 bool onIMEEndComposition(); 119 LRESULT onIMERequest(WPARAM, LPARAM); 120 bool onIMESelect(WPARAM, LPARAM); 121 bool onIMESetContext(WPARAM, LPARAM); 122 void resetIME(); 123 void setInputMethodState(bool); 124 HIMC getIMMContext(); 125 void prepareCandidateWindow(HIMC); 126 LRESULT onIMERequestCharPosition(IMECHARPOSITION*); 127 LRESULT onIMERequestReconvertString(RECONVERTSTRING*); 128 129 void updateActiveState(); 130 void updateActiveStateSoon(); 131 132 void initializeToolTipWindow(); 133 134 void startTrackingMouseLeave(); 135 void stopTrackingMouseLeave(); 136 137 bool shouldInitializeTrackPointHack(); 138 139 void close(); 140 141 HCURSOR cursorToShow() const; 142 void updateNativeCursor(); 143 144 // PageClient 145 virtual PassOwnPtr<DrawingAreaProxy> createDrawingAreaProxy(); 146 virtual void setViewNeedsDisplay(const WebCore::IntRect&); 147 virtual void displayView(); 148 virtual void scrollView(const WebCore::IntRect& scrollRect, const WebCore::IntSize& scrollOffset); 149 virtual void flashBackingStoreUpdates(const Vector<WebCore::IntRect>& updateRects); userSpaceScaleFactor()150 virtual float userSpaceScaleFactor() const { return 1; } 151 152 virtual WebCore::IntSize viewSize(); 153 virtual bool isViewWindowActive(); 154 virtual bool isViewFocused(); 155 virtual bool isViewVisible(); 156 virtual bool isViewInWindow(); 157 virtual void processDidCrash(); 158 virtual void didRelaunchProcess(); 159 virtual void pageClosed(); 160 virtual void toolTipChanged(const WTF::String&, const WTF::String&); 161 virtual void setCursor(const WebCore::Cursor&); 162 virtual void setViewportArguments(const WebCore::ViewportArguments&); 163 virtual void registerEditCommand(PassRefPtr<WebEditCommandProxy>, WebPageProxy::UndoOrRedo); 164 virtual void clearAllEditCommands(); 165 virtual bool canUndoRedo(WebPageProxy::UndoOrRedo); 166 virtual void executeUndoRedo(WebPageProxy::UndoOrRedo); 167 virtual WebCore::FloatRect convertToDeviceSpace(const WebCore::FloatRect&); 168 virtual WebCore::FloatRect convertToUserSpace(const WebCore::FloatRect&); 169 virtual WebCore::IntRect windowToScreen(const WebCore::IntRect&); 170 virtual void doneWithKeyEvent(const NativeWebKeyboardEvent&, bool wasEventHandled); 171 virtual void compositionSelectionChanged(bool); 172 virtual PassRefPtr<WebPopupMenuProxy> createPopupMenuProxy(WebPageProxy*); 173 virtual PassRefPtr<WebContextMenuProxy> createContextMenuProxy(WebPageProxy*); 174 virtual void setFindIndicator(PassRefPtr<FindIndicator>, bool fadeOut); 175 176 #if USE(ACCELERATED_COMPOSITING) 177 virtual void enterAcceleratedCompositingMode(const LayerTreeContext&); 178 virtual void exitAcceleratedCompositingMode(); 179 #endif 180 181 void didCommitLoadForMainFrame(bool useCustomRepresentation); 182 void didFinishLoadingDataForCustomRepresentation(const String& suggestedFilename, const CoreIPC::DataReference&); 183 virtual double customRepresentationZoomFactor(); 184 virtual void setCustomRepresentationZoomFactor(double); 185 WebCore::DragOperation keyStateToDragOperation(DWORD grfKeyState) const; 186 virtual void didChangeScrollbarsForMainFrame() const; 187 188 virtual void findStringInCustomRepresentation(const String&, FindOptions, unsigned maxMatchCount); 189 virtual void countStringMatchesInCustomRepresentation(const String&, FindOptions, unsigned maxMatchCount); 190 191 virtual HWND nativeWindow(); 192 setGestureReachedScrollingLimit(bool limitReached)193 virtual void setGestureReachedScrollingLimit(bool limitReached) { m_gestureReachedScrollingLimit = limitReached; } 194 195 // WebCore::WindowMessageListener 196 virtual void windowReceivedMessage(HWND, UINT message, WPARAM, LPARAM); 197 198 HWND m_window; 199 HWND m_topLevelParentWindow; 200 HWND m_toolTipWindow; 201 202 WebCore::IntSize m_nextResizeScrollOffset; 203 204 HCURSOR m_lastCursorSet; 205 HCURSOR m_webCoreCursor; 206 HCURSOR m_overrideCursor; 207 208 bool m_isInWindow; 209 bool m_isVisible; 210 bool m_wasActivatedByMouseEvent; 211 bool m_trackingMouseLeave; 212 bool m_isBeingDestroyed; 213 214 RefPtr<WebPageProxy> m_page; 215 216 unsigned m_inIMEComposition; 217 218 WebUndoClient m_undoClient; 219 220 WKViewFindIndicatorCallback m_findIndicatorCallback; 221 void* m_findIndicatorCallbackContext; 222 223 COMPtr<IDataObject> m_dragData; 224 COMPtr<IDropTargetHelper> m_dropTargetHelper; 225 // FIXME: This variable is part of a workaround. The drop effect (pdwEffect) passed to Drop is incorrect. 226 // We set this variable in DragEnter and DragOver so that it can be used in Drop to set the correct drop effect. 227 // Thus, on return from DoDragDrop we have the correct pdwEffect for the drag-and-drop operation. 228 // (see https://bugs.webkit.org/show_bug.cgi?id=29264) 229 DWORD m_lastDropEffect; 230 231 int m_lastPanX; 232 int m_lastPanY; 233 234 int m_overPanY; 235 236 bool m_gestureReachedScrollingLimit; 237 }; 238 239 } // namespace WebKit 240 241 #endif // WebView_h 242