include/wx/msw/webview_ie.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        include/wx/msw/webviewie.h
   3 // Purpose:     wxMSW IE wxWebView backend
   4 // Author:      Marianne Gagnon
   5 // Id:          $Id$
   6 // Copyright:   (c) 2010 Marianne Gagnon, Steven Lamerton
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifndef wxWebViewIE_H
  11 #define wxWebViewIE_H
  12
  13 #include "wx/setup.h"
  14
  15 #if wxUSE_WEBVIEW_IE
  16
  17 #include "wx/control.h"
  18 #include "wx/webview.h"
  19 #include "wx/msw/ole/automtn.h"
  20 #include "wx/msw/ole/activex.h"
  21 #include "wx/sharedptr.h"
  22 #include "wx/vector.h"
  23
  24 struct IHTMLDocument2;
  25
  26 class wxFSFile;
  27 class wxFileSystem;
  28
  29 class WXDLLIMPEXP_WEB wxWebViewIE : public wxWebView
  30 {
  31 public:
  32
  33     wxWebViewIE() {}
  34
  35     wxWebViewIE(wxWindow* parent,
  36            wxWindowID id,
  37            const wxString& url = wxWebViewDefaultURLStr,
  38            const wxPoint& pos = wxDefaultPosition,
  39            const wxSize& size = wxDefaultSize,
  40            long style = 0,
  41            const wxString& name = wxWebViewNameStr)
  42    {
  43        Create(parent, id, url, pos, size, style, name);
  44    }
  45
  46     bool Create(wxWindow* parent,
  47            wxWindowID id,
  48            const wxString& url = wxWebViewDefaultURLStr,
  49            const wxPoint& pos = wxDefaultPosition,
  50            const wxSize& size = wxDefaultSize,
  51            long style = 0,
  52            const wxString& name = wxWebViewNameStr);
  53
  54     virtual void LoadUrl(const wxString& url);
  55     virtual void LoadHistoryItem(wxSharedPtr<wxWebHistoryItem> item);
  56     virtual wxVector<wxSharedPtr<wxWebHistoryItem> > GetBackwardHistory();
  57     virtual wxVector<wxSharedPtr<wxWebHistoryItem> > GetForwardHistory();
  58
  59     virtual bool CanGoForward();
  60     virtual bool CanGoBack();
  61     virtual void GoBack();
  62     virtual void GoForward();
  63     virtual void ClearHistory();
  64     virtual void EnableHistory(bool enable = true);
  65     virtual void Stop();
  66     virtual void Reload(wxWebViewReloadFlags flags = wxWEB_VIEW_RELOAD_DEFAULT);
  67
  68     virtual wxString GetPageSource();
  69     virtual wxString GetPageText();
  70
  71     virtual bool IsBusy();
  72     virtual wxString GetCurrentURL();
  73     virtual wxString GetCurrentTitle();
  74
  75     virtual void SetZoomType(wxWebViewZoomType);
  76     virtual wxWebViewZoomType GetZoomType() const;
  77     virtual bool CanSetZoomType(wxWebViewZoomType) const;
  78
  79     virtual void Print();
  80
  81     virtual void SetPage(const wxString& html, const wxString& baseUrl);
  82
  83     virtual wxWebViewZoom GetZoom();
  84     virtual void SetZoom(wxWebViewZoom zoom);
  85
  86     //Clipboard functions
  87     virtual bool CanCut();
  88     virtual bool CanCopy();
  89     virtual bool CanPaste();
  90     virtual void Cut();
  91     virtual void Copy();
  92     virtual void Paste();
  93
  94     //Undo / redo functionality
  95     virtual bool CanUndo();
  96     virtual bool CanRedo();
  97     virtual void Undo();
  98     virtual void Redo();
  99
 100     //Editing functions
 101     virtual void SetEditable(bool enable = true);
 102     virtual bool IsEditable();
 103
 104     //Selection
 105     virtual void SelectAll();
 106     virtual bool HasSelection();
 107     virtual void DeleteSelection();
 108     virtual wxString GetSelectedText();
 109     virtual wxString GetSelectedSource();
 110     virtual void ClearSelection();
 111
 112     virtual void RunScript(const wxString& javascript);
 113
 114     // ---- IE-specific methods
 115
 116     // FIXME: I seem to be able to access remote webpages even in offline mode...
 117     bool IsOfflineMode();
 118     void SetOfflineMode(bool offline);
 119
 120     wxWebViewZoom GetIETextZoom();
 121     void SetIETextZoom(wxWebViewZoom level);
 122
 123     wxWebViewZoom GetIEOpticalZoom();
 124     void SetIEOpticalZoom(wxWebViewZoom level);
 125
 126     void onActiveXEvent(wxActiveXEvent& evt);
 127     void onEraseBg(wxEraseEvent&) {}
 128
 129     DECLARE_EVENT_TABLE();
 130
 131 private:
 132     wxActiveXContainer* m_container;
 133     wxAutomationObject m_ie;
 134     IWebBrowser2* m_webBrowser;
 135     DWORD m_dwCookie;
 136     bool m_canNavigateBack;
 137     bool m_canNavigateForward;
 138
 139     //We store the current zoom type;
 140     wxWebViewZoomType m_zoomType;
 141
 142     /** The "Busy" property of IWebBrowser2 does not always return busy when
 143      *  we'd want it to; this variable may be set to true in cases where the
 144      *  Busy property is false but should be true.
 145      */
 146     bool m_isBusy;
 147     //We manage our own history, the history list contains the history items
 148     //which are added as documentcomplete events arrive, unless we are loading
 149     //an item from the history. The position is stored as an int, and reflects
 150     //where we are in the history list.
 151     wxVector<wxSharedPtr<wxWebHistoryItem> > m_historyList;
 152     int m_historyPosition;
 153     bool m_historyLoadingFromList;
 154     bool m_historyEnabled;
 155
 156     //Generic helper functions for IHtmlDocument commands
 157     bool CanExecCommand(wxString command);
 158     void ExecCommand(wxString command);
 159     IHTMLDocument2* GetDocument();
 160
 161 };
 162
 163 class VirtualProtocol : public IInternetProtocol
 164 {
 165 protected:
 166     ULONG m_refCount;
 167     IInternetProtocolSink* m_protocolSink;
 168     wxString m_html;
 169     VOID * fileP;
 170
 171     wxFSFile* m_file;
 172     wxFileSystem* m_fileSys;
 173
 174 public:
 175     VirtualProtocol();
 176     ~VirtualProtocol();
 177
 178     //IUnknown
 179     ULONG STDMETHODCALLTYPE AddRef();
 180     HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObject);
 181     ULONG STDMETHODCALLTYPE Release();
 182
 183     //IInternetProtocolRoot
 184     HRESULT STDMETHODCALLTYPE Abort(HRESULT hrReason, DWORD dwOptions)
 185                                    { return E_NOTIMPL; }
 186     HRESULT STDMETHODCALLTYPE Continue(PROTOCOLDATA *pProtocolData)
 187                                        { return S_OK; }
 188     HRESULT STDMETHODCALLTYPE Resume() { return S_OK; }
 189     HRESULT STDMETHODCALLTYPE Start(LPCWSTR szUrl,
 190                                     IInternetProtocolSink *pOIProtSink,
 191                                     IInternetBindInfo *pOIBindInfo,
 192                                     DWORD grfPI,
 193                                     HANDLE_PTR dwReserved);
 194     HRESULT STDMETHODCALLTYPE Suspend() { return S_OK; }
 195     HRESULT STDMETHODCALLTYPE Terminate(DWORD dwOptions) { return S_OK; }
 196
 197     //IInternetProtocol
 198     HRESULT STDMETHODCALLTYPE LockRequest(DWORD dwOptions) { return S_OK; }
 199     HRESULT STDMETHODCALLTYPE Read(void *pv, ULONG cb, ULONG *pcbRead);
 200     HRESULT STDMETHODCALLTYPE Seek(LARGE_INTEGER dlibMove, DWORD dwOrigin,
 201                                    ULARGE_INTEGER* plibNewPosition)
 202                                    { return E_FAIL; }
 203     HRESULT STDMETHODCALLTYPE UnlockRequest() { return S_OK; }
 204 };
 205
 206 class ClassFactory : public IClassFactory
 207 {
 208 private:
 209     ULONG m_refCount;
 210 public:
 211     //IUnknown
 212     ULONG STDMETHODCALLTYPE AddRef();
 213     HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObject);
 214     ULONG STDMETHODCALLTYPE Release();
 215
 216     //IClassFactory
 217     HRESULT STDMETHODCALLTYPE CreateInstance(IUnknown* pUnkOuter,
 218                                              REFIID riid, void** ppvObject);
 219     HRESULT STDMETHODCALLTYPE LockServer(BOOL fLock);
 220 };
 221
 222 #endif // wxUSE_WEBVIEW_IE
 223
 224 #endif // wxWebViewIE_H