include/wx/webview.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        webview.h
   3 // Purpose:     Common interface and events for web view component
   4 // Author:      Marianne Gagnon
   5 // Id:          $Id$
   6 // Copyright:   (c) 2010 Marianne Gagnon, 2011 Steven Lamerton
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifndef _WX_WEB_VIEW_H_
  11 #define _WX_WEB_VIEW_H_
  12
  13 #include "wx/setup.h"
  14
  15 #if wxUSE_WEBVIEW
  16
  17 #include "wx/control.h"
  18 #include "wx/event.h"
  19 #include "wx/sstream.h"
  20 #include "wx/sharedptr.h"
  21 #include "wx/vector.h"
  22
  23 #include "wx/osx/webviewhistoryitem_webkit.h"
  24 #include "wx/gtk/webviewhistoryitem_webkit.h"
  25 #include "wx/msw/webviewhistoryitem_ie.h"
  26
  27 class wxFSFile;
  28 class wxFileSystem;
  29
  30 enum wxWebViewZoom
  31 {
  32     wxWEB_VIEW_ZOOM_TINY,
  33     wxWEB_VIEW_ZOOM_SMALL,
  34     wxWEB_VIEW_ZOOM_MEDIUM,
  35     wxWEB_VIEW_ZOOM_LARGE,
  36     wxWEB_VIEW_ZOOM_LARGEST
  37 };
  38
  39 enum wxWebViewZoomType
  40 {
  41     //Scales entire page, including images
  42     wxWEB_VIEW_ZOOM_TYPE_LAYOUT,
  43     wxWEB_VIEW_ZOOM_TYPE_TEXT
  44 };
  45
  46 enum wxWebViewNavigationError
  47 {
  48     wxWEB_NAV_ERR_CONNECTION,
  49     wxWEB_NAV_ERR_CERTIFICATE,
  50     wxWEB_NAV_ERR_AUTH,
  51     wxWEB_NAV_ERR_SECURITY,
  52     wxWEB_NAV_ERR_NOT_FOUND,
  53     wxWEB_NAV_ERR_REQUEST,
  54     wxWEB_NAV_ERR_USER_CANCELLED,
  55     wxWEB_NAV_ERR_OTHER
  56 };
  57
  58 enum wxWebViewReloadFlags
  59 {
  60     //Default, may access cache
  61     wxWEB_VIEW_RELOAD_DEFAULT,
  62     wxWEB_VIEW_RELOAD_NO_CACHE
  63 };
  64
  65 enum wxWebViewBackend
  66 {
  67     wxWEB_VIEW_BACKEND_DEFAULT,
  68     wxWEB_VIEW_BACKEND_WEBKIT,
  69     wxWEB_VIEW_BACKEND_IE
  70 };
  71
  72 //Base class for custom scheme handlers
  73 class WXDLLIMPEXP_WEBVIEW wxWebViewHandler
  74 {
  75 public:
  76     wxWebViewHandler(const wxString& scheme) : m_scheme(scheme) {}
  77     virtual ~wxWebViewHandler() {}
  78     virtual wxString GetName() const { return m_scheme; }
  79     virtual wxFSFile* GetFile(const wxString &uri) = 0;
  80 private:
  81     wxString m_scheme;
  82 };
  83
  84 extern WXDLLIMPEXP_DATA_WEBVIEW(const char) wxWebViewNameStr[];
  85 extern WXDLLIMPEXP_DATA_WEBVIEW(const char) wxWebViewDefaultURLStr[];
  86
  87 class WXDLLIMPEXP_WEBVIEW wxWebView : public wxControl
  88 {
  89 public:
  90     virtual ~wxWebView() {}
  91
  92     virtual bool Create(wxWindow* parent,
  93            wxWindowID id,
  94            const wxString& url = wxWebViewDefaultURLStr,
  95            const wxPoint& pos = wxDefaultPosition,
  96            const wxSize& size = wxDefaultSize,
  97            long style = 0,
  98            const wxString& name = wxWebViewNameStr) = 0;
  99
 100     static wxWebView* New(wxWebViewBackend backend = wxWEB_VIEW_BACKEND_DEFAULT);
 101     static wxWebView* New(wxWindow* parent,
 102            wxWindowID id,
 103            const wxString& url = wxWebViewDefaultURLStr,
 104            const wxPoint& pos = wxDefaultPosition,
 105            const wxSize& size = wxDefaultSize,
 106            wxWebViewBackend backend = wxWEB_VIEW_BACKEND_DEFAULT,
 107            long style = 0,
 108            const wxString& name = wxWebViewNameStr);
 109
 110     //General methods
 111     virtual wxString GetCurrentTitle() const = 0;
 112     virtual wxString GetCurrentURL() const = 0;
 113     // TODO: handle choosing a frame when calling GetPageSource()?
 114     virtual wxString GetPageSource() const = 0;
 115     virtual wxString GetPageText() const = 0;
 116     virtual bool IsBusy() const = 0;
 117     virtual bool IsEditable() const = 0;
 118     virtual void LoadURL(const wxString& url) = 0;
 119     virtual void Print() = 0;
 120     virtual void RegisterHandler(wxSharedPtr<wxWebViewHandler> handler) = 0;
 121     virtual void Reload(wxWebViewReloadFlags flags = wxWEB_VIEW_RELOAD_DEFAULT) = 0;
 122     virtual void RunScript(const wxString& javascript) = 0;
 123     virtual void SetEditable(bool enable = true) = 0;
 124     virtual void SetPage(const wxString& html, const wxString& baseUrl) = 0;
 125     virtual void SetPage(wxInputStream& html, wxString baseUrl)
 126     {
 127         wxStringOutputStream stream;
 128         stream.Write(html);
 129         SetPage(stream.GetString(), baseUrl);
 130     }
 131     virtual void Stop() = 0;
 132
 133     //History
 134     virtual bool CanGoBack() const = 0;
 135     virtual bool CanGoForward() const = 0;
 136     virtual void GoBack() = 0;
 137     virtual void GoForward() = 0;
 138     virtual void ClearHistory() = 0;
 139     virtual void EnableHistory(bool enable = true) = 0;
 140     virtual wxVector<wxSharedPtr<wxWebViewHistoryItem> > GetBackwardHistory() = 0;
 141     virtual wxVector<wxSharedPtr<wxWebViewHistoryItem> > GetForwardHistory() = 0;
 142     virtual void LoadHistoryItem(wxSharedPtr<wxWebViewHistoryItem> item) = 0;
 143
 144     //Zoom
 145     virtual bool CanSetZoomType(wxWebViewZoomType type) const = 0;
 146     virtual wxWebViewZoom GetZoom() const = 0;
 147     virtual wxWebViewZoomType GetZoomType() const = 0;
 148     virtual void SetZoom(wxWebViewZoom zoom) = 0;
 149     virtual void SetZoomType(wxWebViewZoomType zoomType) = 0;
 150
 151     //Selection
 152     virtual void SelectAll() = 0;
 153     virtual bool HasSelection() const = 0;
 154     virtual void DeleteSelection() = 0;
 155     virtual wxString GetSelectedText() const = 0;
 156     virtual wxString GetSelectedSource() const = 0;
 157     virtual void ClearSelection() = 0;
 158
 159     //Clipboard functions
 160     virtual bool CanCut() const = 0;
 161     virtual bool CanCopy() const = 0;
 162     virtual bool CanPaste() const = 0;
 163     virtual void Cut() = 0;
 164     virtual void Copy() = 0;
 165     virtual void Paste() = 0;
 166
 167     //Undo / redo functionality
 168     virtual bool CanUndo() const = 0;
 169     virtual bool CanRedo() const = 0;
 170     virtual void Undo() = 0;
 171     virtual void Redo() = 0;
 172
 173     wxDECLARE_ABSTRACT_CLASS(wxWebView);
 174 };
 175
 176 class WXDLLIMPEXP_WEBVIEW wxWebViewEvent : public wxNotifyEvent
 177 {
 178 public:
 179     wxWebViewEvent() {}
 180     wxWebViewEvent(wxEventType type, int id, const wxString url,
 181                    const wxString target)
 182         : wxNotifyEvent(type, id), m_url(url), m_target(target)
 183     {}
 184
 185
 186     const wxString& GetURL() const { return m_url; }
 187     const wxString& GetTarget() const { return m_target; }
 188
 189     virtual wxEvent* Clone() const { return new wxWebViewEvent(*this); }
 190 private:
 191     wxString m_url;
 192     wxString m_target;
 193
 194     wxDECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxWebViewEvent);
 195 };
 196
 197 wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_WEBVIEW, wxEVT_COMMAND_WEB_VIEW_NAVIGATING, wxWebViewEvent );
 198 wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_WEBVIEW, wxEVT_COMMAND_WEB_VIEW_NAVIGATED, wxWebViewEvent );
 199 wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_WEBVIEW, wxEVT_COMMAND_WEB_VIEW_LOADED, wxWebViewEvent );
 200 wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_WEBVIEW, wxEVT_COMMAND_WEB_VIEW_ERROR, wxWebViewEvent );
 201 wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_WEBVIEW, wxEVT_COMMAND_WEB_VIEW_NEWWINDOW, wxWebViewEvent );
 202 wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_WEBVIEW, wxEVT_COMMAND_WEB_VIEW_TITLE_CHANGED, wxWebViewEvent );
 203
 204 typedef void (wxEvtHandler::*wxWebViewEventFunction)
 205              (wxWebViewEvent&);
 206
 207 #define wxWebViewEventHandler(func) \
 208     wxEVENT_HANDLER_CAST(wxWebViewEventFunction, func)
 209
 210 #define EVT_WEB_VIEW_NAVIGATING(id, fn) \
 211     wx__DECLARE_EVT1(wxEVT_COMMAND_WEB_VIEW_NAVIGATING, id, \
 212                      wxWebViewEventHandler(fn))
 213
 214 #define EVT_WEB_VIEW_NAVIGATED(id, fn) \
 215     wx__DECLARE_EVT1(wxEVT_COMMAND_WEB_VIEW_NAVIGATED, id, \
 216                      wxWebViewEventHandler(fn))
 217
 218 #define EVT_WEB_VIEW_LOADED(id, fn) \
 219     wx__DECLARE_EVT1(wxEVT_COMMAND_WEB_VIEW_LOADED, id, \
 220                      wxWebViewEventHandler(fn))
 221
 222 #define EVT_WEB_VIEW_ERRROR(id, fn) \
 223     wx__DECLARE_EVT1(wxEVT_COMMAND_WEB_VIEW_ERROR, id, \
 224                      wxWebViewEventHandler(fn))
 225
 226 #define EVT_WEB_VIEW_NEWWINDOW(id, fn) \
 227     wx__DECLARE_EVT1(wxEVT_COMMAND_WEB_VIEW_NEWWINDOW, id, \
 228                      wxWebViewEventHandler(fn))
 229
 230 #define EVT_WEB_VIEW_TITLE_CHANGED(id, fn) \
 231     wx__DECLARE_EVT1(wxEVT_COMMAND_WEB_VIEW_TITLE_CHANGED, id, \
 232                      wxWebViewEventHandler(fn))
 233
 234 #endif // wxUSE_WEBVIEW
 235
 236 #endif // _WX_WEB_VIEW_H_