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/defs.h"
  14
  15 #if wxUSE_WEBVIEW && wxUSE_WEBVIEW_WEBKIT && defined(__WXGTK__)
  16
  17 #include "wx/sharedptr.h"
  18 #include "wx/webview.h"
  19
  20 typedef struct _WebKitWebView WebKitWebView;
  21
  22 //-----------------------------------------------------------------------------
  23 // wxWebViewWebKit
  24 //-----------------------------------------------------------------------------
  25
  26 class WXDLLIMPEXP_WEBVIEW wxWebViewWebKit : public wxWebView
  27 {
  28 public:
  29     wxWebViewWebKit();
  30
  31     wxWebViewWebKit(wxWindow *parent,
  32            wxWindowID id = wxID_ANY,
  33            const wxString& url = wxWebViewDefaultURLStr,
  34            const wxPoint& pos = wxDefaultPosition,
  35            const wxSize& size = wxDefaultSize, long style = 0,
  36            const wxString& name = wxWebViewNameStr)
  37     {
  38         Create(parent, id, url, pos, size, style, name);
  39     }
  40
  41     virtual bool Create(wxWindow *parent,
  42            wxWindowID id = wxID_ANY,
  43            const wxString& url = wxWebViewDefaultURLStr,
  44            const wxPoint& pos = wxDefaultPosition,
  45            const wxSize& size = wxDefaultSize, long style = 0,
  46            const wxString& name = wxWebViewNameStr);
  47
  48     virtual ~wxWebViewWebKit();
  49
  50     virtual bool Enable( bool enable = true );
  51
  52     // implementation
  53     // --------------
  54
  55     static wxVisualAttributes
  56     GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
  57
  58     virtual void Stop();
  59     virtual void LoadURL(const wxString& url);
  60     virtual void GoBack();
  61     virtual void GoForward();
  62     virtual void Reload(wxWebViewReloadFlags flags = wxWEB_VIEW_RELOAD_DEFAULT);
  63     virtual bool CanGoBack() const;
  64     virtual bool CanGoForward() const;
  65     virtual void ClearHistory();
  66     virtual void EnableContextMenu(bool enable = true);
  67     virtual void EnableHistory(bool enable = true);
  68     virtual wxVector<wxSharedPtr<wxWebViewHistoryItem> > GetBackwardHistory();
  69     virtual wxVector<wxSharedPtr<wxWebViewHistoryItem> > GetForwardHistory();
  70     virtual void LoadHistoryItem(wxSharedPtr<wxWebViewHistoryItem> item);
  71     virtual wxString GetCurrentURL() const;
  72     virtual wxString GetCurrentTitle() const;
  73     virtual wxString GetPageSource() const;
  74     virtual wxString GetPageText() const;
  75     virtual void Print();
  76     virtual bool IsBusy() const;
  77
  78     void SetZoomType(wxWebViewZoomType);
  79     wxWebViewZoomType GetZoomType() const;
  80     bool CanSetZoomType(wxWebViewZoomType) const;
  81     virtual wxWebViewZoom GetZoom() const;
  82     virtual void SetZoom(wxWebViewZoom);
  83
  84     //Clipboard functions
  85     virtual bool CanCut() const;
  86     virtual bool CanCopy() const;
  87     virtual bool CanPaste() const;
  88     virtual void Cut();
  89     virtual void Copy();
  90     virtual void Paste();
  91
  92     //Undo / redo functionality
  93     virtual bool CanUndo() const;
  94     virtual bool CanRedo() const;
  95     virtual void Undo();
  96     virtual void Redo();
  97
  98     //Find function
  99     virtual long Find(const wxString& text, int flags = wxWEB_VIEW_FIND_DEFAULT);
 100
 101     //Editing functions
 102     virtual void SetEditable(bool enable = true);
 103     virtual bool IsEditable() const;
 104
 105     //Selection
 106     virtual void DeleteSelection();
 107     virtual bool HasSelection() const;
 108     virtual void SelectAll();
 109     virtual wxString GetSelectedText() const;
 110     virtual wxString GetSelectedSource() const;
 111     virtual void ClearSelection();
 112
 113     virtual void RunScript(const wxString& javascript);
 114
 115     //Virtual Filesystem Support
 116     virtual void RegisterHandler(wxSharedPtr<wxWebViewHandler> handler);
 117     virtual wxVector<wxSharedPtr<wxWebViewHandler> > GetHandlers() { return m_handlerList; }
 118
 119     virtual void* GetNativeBackend() const { return m_web_view; }
 120
 121     /** TODO: check if this can be made private
 122      * The native control has a getter to check for busy state, but except in
 123      * very recent versions of webkit this getter doesn't say everything we need
 124      * (namely it seems to stay indefinitely busy when loading is cancelled by
 125      * user)
 126      */
 127     bool m_busy;
 128
 129     wxString m_vfsurl;
 130
 131     //We use this flag to stop recursion when we load a page from the navigation
 132     //callback, mainly when loading a VFS page
 133     bool m_guard;
 134
 135 protected:
 136     virtual void DoSetPage(const wxString& html, const wxString& baseUrl);
 137
 138     virtual GdkWindow *GTKGetWindow(wxArrayGdkWindows& windows) const;
 139
 140 private:
 141
 142     void ZoomIn();
 143     void ZoomOut();
 144     void SetWebkitZoom(float level);
 145     float GetWebkitZoom() const;
 146
 147     //Find helper function
 148     void FindClear();
 149
 150     // focus event handler: calls GTKUpdateBitmap()
 151     void GTKOnFocus(wxFocusEvent& event);
 152
 153     WebKitWebView *m_web_view;
 154     int m_historyLimit;
 155
 156     wxVector<wxSharedPtr<wxWebViewHandler> > m_handlerList;
 157
 158     //variables used for Find()
 159     int m_findFlags;
 160     wxString m_findText;
 161     int m_findPosition;
 162     int m_findCount;
 163
 164     wxDECLARE_DYNAMIC_CLASS(wxWebViewWebKit);
 165 };
 166
 167 class WXDLLIMPEXP_WEBVIEW wxWebViewFactoryWebKit : public wxWebViewFactory
 168 {
 169 public:
 170     virtual wxWebView* Create() { return new wxWebViewWebKit; }
 171     virtual wxWebView* Create(wxWindow* parent,
 172                               wxWindowID id,
 173                               const wxString& url = wxWebViewDefaultURLStr,
 174                               const wxPoint& pos = wxDefaultPosition,
 175                               const wxSize& size = wxDefaultSize,
 176                               long style = 0,
 177                               const wxString& name = wxWebViewNameStr)
 178     { return new wxWebViewWebKit(parent, id, url, pos, size, style, name); }
 179 };
 180
 181
 182 #endif // wxUSE_WEBVIEW && wxUSE_WEBVIEW_WEBKIT && defined(__WXGTK__)
 183
 184 #endif