include/wx/gtk/webview_webkit.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        include/gtk/wx/webview.h
   3 // Purpose:     GTK webkit backend for web view component
   4 // Author:      Robert Roebling, Marianne Gagnon
   5 // Id:          $Id$
   6 // Copyright:   (c) 2010 Marianne Gagnon, 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifndef _WX_GTK_WEBKITCTRL_H_
  11 #define _WX_GTK_WEBKITCTRL_H_
  12
  13 #include "wx/setup.h"
  14
  15 #if wxUSE_WEBVIEW_WEBKIT && defined(__WXGTK__)
  16
  17 #include "webkit/webkit.h"
  18 #include "wx/sharedptr.h"
  19 #include "wx/webview.h"
  20
  21 //-----------------------------------------------------------------------------
  22 // wxWebViewWebKit
  23 //-----------------------------------------------------------------------------
  24
  25 class WXDLLIMPEXP_WEB wxWebViewWebKit : public wxWebView
  26 {
  27 public:
  28     wxWebViewWebKit() { Init(); }
  29
  30     wxWebViewWebKit(wxWindow *parent,
  31            wxWindowID id = wxID_ANY,
  32            const wxString& url = wxWebViewDefaultURLStr,
  33            const wxPoint& pos = wxDefaultPosition,
  34            const wxSize& size = wxDefaultSize, long style = 0,
  35            const wxString& name = wxWebViewNameStr)
  36     {
  37         Init();
  38
  39         Create(parent, id, url, pos, size, style, name);
  40     }
  41
  42     virtual bool Create(wxWindow *parent,
  43            wxWindowID id = wxID_ANY,
  44            const wxString& url = wxWebViewDefaultURLStr,
  45            const wxPoint& pos = wxDefaultPosition,
  46            const wxSize& size = wxDefaultSize, long style = 0,
  47            const wxString& name = wxWebViewNameStr);
  48
  49     virtual bool Enable( bool enable = true );
  50
  51     // implementation
  52     // --------------
  53
  54     static wxVisualAttributes
  55     GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
  56
  57     // helper to allow access to protected member from GTK callback
  58     void MoveWindow(int x, int y, int width, int height)
  59     {
  60         DoMoveWindow(x, y, width, height);
  61     }
  62
  63     virtual void Stop();
  64     virtual void LoadUrl(const wxString& url);
  65     virtual void GoBack();
  66     virtual void GoForward();
  67     virtual void Reload(wxWebViewReloadFlags flags = wxWEB_VIEW_RELOAD_DEFAULT);
  68     virtual bool CanGoBack() const;
  69     virtual bool CanGoForward() const;
  70     virtual void ClearHistory();
  71     virtual void EnableHistory(bool enable = true);
  72     virtual wxVector<wxSharedPtr<wxWebViewHistoryItem> > GetBackwardHistory();
  73     virtual wxVector<wxSharedPtr<wxWebViewHistoryItem> > GetForwardHistory();
  74     virtual void LoadHistoryItem(wxSharedPtr<wxWebViewHistoryItem> item);
  75     virtual wxString GetCurrentURL() const;
  76     virtual wxString GetCurrentTitle() const;
  77     virtual wxString GetPageSource() const;
  78     virtual wxString GetPageText() const;
  79     //We do not want to hide the other overloads
  80     using wxWebView::SetPage;
  81     virtual void SetPage(const wxString& html, const wxString& baseUrl);
  82     virtual void Print();
  83     virtual bool IsBusy() const;
  84
  85     void SetZoomType(wxWebViewZoomType);
  86     wxWebViewZoomType GetZoomType() const;
  87     bool CanSetZoomType(wxWebViewZoomType) const;
  88     virtual wxWebViewZoom GetZoom() const;
  89     virtual void SetZoom(wxWebViewZoom);
  90
  91     //Clipboard functions
  92     virtual bool CanCut() const;
  93     virtual bool CanCopy() const;
  94     virtual bool CanPaste() const;
  95     virtual void Cut();
  96     virtual void Copy();
  97     virtual void Paste();
  98
  99     //Undo / redo functionality
 100     virtual bool CanUndo() const;
 101     virtual bool CanRedo() const;
 102     virtual void Undo();
 103     virtual void Redo();
 104
 105     //Editing functions
 106     virtual void SetEditable(bool enable = true);
 107     virtual bool IsEditable() const;
 108
 109     //Selection
 110     virtual void DeleteSelection();
 111     virtual bool HasSelection() const;
 112     virtual void SelectAll();
 113     virtual wxString GetSelectedText() const;
 114     virtual wxString GetSelectedSource() const;
 115     virtual void ClearSelection();
 116
 117     virtual void RunScript(const wxString& javascript);
 118
 119     //Virtual Filesystem Support
 120     virtual void RegisterHandler(wxSharedPtr<wxWebViewHandler> handler);
 121     virtual wxVector<wxSharedPtr<wxWebViewHandler> > GetHandlers() { return m_handlerList; }
 122
 123     /** FIXME: hack to work around signals being received too early */
 124     bool m_ready;
 125
 126
 127     /** TODO: check if this can be made private
 128      * The native control has a getter to check for busy state, but except in
 129      * very recent versions of webkit this getter doesn't say everything we need
 130      * (namely it seems to stay indefinitely busy when loading is cancelled by
 131      * user)
 132      */
 133     bool m_busy;
 134
 135     wxString m_vfsurl;
 136
 137     //We use this flag to stop recursion when we load a page from the navigation
 138     //callback, mainly when loading a VFS page
 139     bool m_guard;
 140
 141 protected:
 142
 143     virtual GdkWindow *GTKGetWindow(wxArrayGdkWindows& windows) const;
 144
 145 private:
 146
 147     void ZoomIn();
 148     void ZoomOut();
 149     void SetWebkitZoom(float level);
 150     float GetWebkitZoom() const;
 151
 152     // focus event handler: calls GTKUpdateBitmap()
 153     void GTKOnFocus(wxFocusEvent& event);
 154
 155     GtkWidget *web_view;
 156     gint m_historyLimit;
 157
 158     wxVector<wxSharedPtr<wxWebViewHandler> > m_handlerList;
 159
 160     wxDECLARE_DYNAMIC_CLASS(wxWebViewWebKit);
 161 };
 162
 163 #endif // wxUSE_WEBVIEW_WEBKIT && defined(__WXGTK__)
 164
 165 #endif