wxWidgets/include/wx/gtk/webview_webkit.h

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/////////////////////////////////////////////////////////////////////////////
// Name: include/gtk/wx/webview.h
// Purpose: GTK webkit backend for web view component
// Author: Robert Roebling, Marianne Gagnon
// Copyright: (c) 2010 Marianne Gagnon, 1998 Robert Roebling
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_GTK_WEBKITCTRL_H_
#define _WX_GTK_WEBKITCTRL_H_
#include "wx/defs.h"
#if wxUSE_WEBVIEW && wxUSE_WEBVIEW_WEBKIT && defined(__WXGTK__)
#include "wx/sharedptr.h"
#include "wx/webview.h"
typedef struct _WebKitWebView WebKitWebView;
//-----------------------------------------------------------------------------
// wxWebViewWebKit
//-----------------------------------------------------------------------------
class WXDLLIMPEXP_WEBVIEW wxWebViewWebKit : public wxWebView
{
public:
wxWebViewWebKit();
wxWebViewWebKit(wxWindow *parent,
wxWindowID id = wxID_ANY,
const wxString& url = wxWebViewDefaultURLStr,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize, long style = 0,
const wxString& name = wxWebViewNameStr)
{
Create(parent, id, url, pos, size, style, name);
}
virtual bool Create(wxWindow *parent,
wxWindowID id = wxID_ANY,
const wxString& url = wxWebViewDefaultURLStr,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize, long style = 0,
const wxString& name = wxWebViewNameStr) wxOVERRIDE;
Fix crash on wxWebViewWebKit window destruction. We were getting crashes due to using methods of already half-destroyed object when wxWebView window was destroyed in wxGTK, with the following abbreviated stack: #0 wxgtk_webview_webkit_load_status (widget=0x12eb380, webKitCtrl=0x13ee040) at src/gtk/webview_webkit.cpp:38 ... #8 0x00007ffff05ca281 in dispatchDidFailLoad (error=..., this=0x7fffe32db900) at ../Source/WebKit/gtk/WebCoreSupport/FrameLoaderClientGtk.cpp:1054 #9 WebKit::FrameLoaderClient::dispatchDidFailLoad (this=0x7fffe32db900, error=...) at ../Source/WebKit/gtk/WebCoreSupport/FrameLoaderClientGtk.cpp:1049 #10 0x00007ffff0b0de54 in WebCore::FrameLoader::checkLoadCompleteForThisFrame (this=0x7fffe3221b70) at ../Source/WebCore/loader/FrameLoader.cpp:2128 #11 0x00007ffff0b0cfde in WebCore::FrameLoader::checkLoadComplete (this=<optimized out>) at ../Source/WebCore/loader/FrameLoader.cpp:2370 #12 0x00007ffff0b0a3b2 in WebCore::FrameLoader::receivedMainResourceError (this=0x7fffe3221b70, error=..., isComplete=true) at ../Source/WebCore/loader/FrameLoader.cpp:2640 #13 0x00007ffff0b423b7 in cancel (error=..., this=0x7fffe3279680) at ../Source/WebCore/loader/ResourceLoader.cpp:399 #14 WebCore::ResourceLoader::cancel (this=0x7fffe3279680, error=...) at ../Source/WebCore/loader/ResourceLoader.cpp:353 #15 0x00007ffff0b420c0 in WebCore::ResourceLoader::cancel (this=<optimized out>) at ../Source/WebCore/loader/ResourceLoader.cpp:350 #16 0x00007ffff0afda9e in WebCore::DocumentLoader::stopLoading (this=0x7fffa081d800) at ../Source/WebCore/loader/DocumentLoader.cpp:258 #17 0x00007ffff0b09561 in stopAllLoaders (clearProvisionalItemPolicy=WebCore::ShouldClearProvisionalItem, this=0x7fffe3221b70) at ../Source/WebCore/loader/FrameLoader.cpp:1523 #18 WebCore::FrameLoader::stopAllLoaders (this=0x7fffe3221b70, clearProvisionalItemPolicy=WebCore::ShouldClearProvisionalItem) at ../Source/WebCore/loader/FrameLoader.cpp:1501 #19 0x00007ffff0b0d17a in WebCore::FrameLoader::stopForUserCancel (this=0x7fffe3221b70, deferCheckLoadComplete=false) at ../Source/WebCore/loader/FrameLoader.cpp:1541 #20 0x00007ffff05f3a36 in webkit_web_view_dispose (object=0x12eb380) at ../Source/WebKit/gtk/webkit/webkitwebview.cpp:1327 #21 0x00007ffff27ff7a0 in g_object_run_dispose (object=0x12eb380) at /tmp/buildd/glib2.0-2.32.3/./gobject/gobject.c:1061 #22 0x00007ffff4476c1e in gtk_scrolled_window_forall (container=0x7fff9c007d10, include_internals=0, callback=0x7ffff452cd20 <IA__gtk_widget_destroy>, callback_data=0x0) at /tmp/buildd/gtk+2.0-2.24.10/gtk/gtkscrolledwindow.c:1085 #23 0x00007ffff439872f in gtk_container_destroy (object=0x7fff9c007d10) at /tmp/buildd/gtk+2.0-2.24.10/gtk/gtkcontainer.c:1073 ... #28 0x00007ffff443cd60 in gtk_object_dispose (gobject=0x7fff9c007d10) at /tmp/buildd/gtk+2.0-2.24.10/gtk/gtkobject.c:421 #29 0x00007ffff27ff7a0 in g_object_run_dispose (object=0x7fff9c007d10) at /tmp/buildd/glib2.0-2.32.3/./gobject/gobject.c:1061 #30 0x00007ffff6cb65ac in wxWindow::~wxWindow (this=0x13ee040, __in_chrg=<optimized out>) at src/gtk/window.cpp:2367 #31 0x00007ffff6d71241 in wxControlBase::~wxControlBase (this=0x13ee040, __in_chrg=<optimized out>) at src/common/ctrlcmn.cpp:49 #32 0x00000000005cf761 in wxControl::~wxControl (this=0x13ee040, __in_chrg=<optimized out>) at include/wx/gtk/control.h:27 #33 0x00007ffff7bd1eae in wxWebView::~wxWebView (this=0x13ee040, __in_chrg=<optimized out>) at include/wx/webview.h:96 #34 0x00007ffff7bd3443 in wxWebViewWebKit::~wxWebViewWebKit (this=0x13ee040, __in_chrg=<optimized out>) at include/wx/gtk/webview_webkit.h:26 #35 0x00007ffff7bd34ae in wxWebViewWebKit::~wxWebViewWebKit (this=0x13ee040, __in_chrg=<optimized out>) at include/wx/gtk/webview_webkit.h:26 Fix this by setting m_isBeingDeleted flag for wxWebViewWebKit early and checking it in the callback. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72173 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2012-07-23 11:03:05 -04:00
virtual ~wxWebViewWebKit();
virtual bool Enable( bool enable = true ) wxOVERRIDE;
// implementation
// --------------
static wxVisualAttributes
GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
virtual void Stop() wxOVERRIDE;
virtual void LoadURL(const wxString& url) wxOVERRIDE;
virtual void GoBack() wxOVERRIDE;
virtual void GoForward() wxOVERRIDE;
virtual void Reload(wxWebViewReloadFlags flags = wxWEBVIEW_RELOAD_DEFAULT) wxOVERRIDE;
virtual bool CanGoBack() const wxOVERRIDE;
virtual bool CanGoForward() const wxOVERRIDE;
virtual void ClearHistory() wxOVERRIDE;
virtual void EnableContextMenu(bool enable = true) wxOVERRIDE;
virtual void EnableHistory(bool enable = true) wxOVERRIDE;
virtual wxVector<wxSharedPtr<wxWebViewHistoryItem> > GetBackwardHistory() wxOVERRIDE;
virtual wxVector<wxSharedPtr<wxWebViewHistoryItem> > GetForwardHistory() wxOVERRIDE;
virtual void LoadHistoryItem(wxSharedPtr<wxWebViewHistoryItem> item) wxOVERRIDE;
virtual wxString GetCurrentURL() const wxOVERRIDE;
virtual wxString GetCurrentTitle() const wxOVERRIDE;
virtual wxString GetPageSource() const wxOVERRIDE;
virtual wxString GetPageText() const wxOVERRIDE;
virtual void Print() wxOVERRIDE;
virtual bool IsBusy() const wxOVERRIDE;
void SetZoomType(wxWebViewZoomType) wxOVERRIDE;
wxWebViewZoomType GetZoomType() const wxOVERRIDE;
bool CanSetZoomType(wxWebViewZoomType) const wxOVERRIDE;
virtual wxWebViewZoom GetZoom() const wxOVERRIDE;
virtual void SetZoom(wxWebViewZoom) wxOVERRIDE;
//Clipboard functions
virtual bool CanCut() const wxOVERRIDE;
virtual bool CanCopy() const wxOVERRIDE;
virtual bool CanPaste() const wxOVERRIDE;
virtual void Cut() wxOVERRIDE;
virtual void Copy() wxOVERRIDE;
virtual void Paste() wxOVERRIDE;
//Undo / redo functionality
virtual bool CanUndo() const wxOVERRIDE;
virtual bool CanRedo() const wxOVERRIDE;
virtual void Undo() wxOVERRIDE;
virtual void Redo() wxOVERRIDE;
//Find function
virtual long Find(const wxString& text, int flags = wxWEBVIEW_FIND_DEFAULT) wxOVERRIDE;
//Editing functions
virtual void SetEditable(bool enable = true) wxOVERRIDE;
virtual bool IsEditable() const wxOVERRIDE;
//Selection
virtual void DeleteSelection() wxOVERRIDE;
virtual bool HasSelection() const wxOVERRIDE;
virtual void SelectAll() wxOVERRIDE;
virtual wxString GetSelectedText() const wxOVERRIDE;
virtual wxString GetSelectedSource() const wxOVERRIDE;
virtual void ClearSelection() wxOVERRIDE;
virtual void RunScript(const wxString& javascript) wxOVERRIDE;
//Virtual Filesystem Support
virtual void RegisterHandler(wxSharedPtr<wxWebViewHandler> handler) wxOVERRIDE;
virtual wxVector<wxSharedPtr<wxWebViewHandler> > GetHandlers() { return m_handlerList; }
virtual void* GetNativeBackend() const wxOVERRIDE { return m_web_view; }
/** TODO: check if this can be made private
* The native control has a getter to check for busy state, but except in
* very recent versions of webkit this getter doesn't say everything we need
* (namely it seems to stay indefinitely busy when loading is cancelled by
* user)
*/
bool m_busy;
wxString m_vfsurl;
//We use this flag to stop recursion when we load a page from the navigation
//callback, mainly when loading a VFS page
bool m_guard;
//This flag is use to indicate when a navigation event is the result of a
//create-web-view signal and so we need to send a new window event
bool m_creating;
protected:
virtual void DoSetPage(const wxString& html, const wxString& baseUrl) wxOVERRIDE;
virtual GdkWindow *GTKGetWindow(wxArrayGdkWindows& windows) const wxOVERRIDE;
private:
void ZoomIn();
void ZoomOut();
void SetWebkitZoom(float level);
float GetWebkitZoom() const;
//Find helper function
void FindClear();
// focus event handler: calls GTKUpdateBitmap()
void GTKOnFocus(wxFocusEvent& event);
WebKitWebView *m_web_view;
int m_historyLimit;
wxVector<wxSharedPtr<wxWebViewHandler> > m_handlerList;
//variables used for Find()
int m_findFlags;
wxString m_findText;
int m_findPosition;
int m_findCount;
wxDECLARE_DYNAMIC_CLASS(wxWebViewWebKit);
};
class WXDLLIMPEXP_WEBVIEW wxWebViewFactoryWebKit : public wxWebViewFactory
{
public:
virtual wxWebView* Create() wxOVERRIDE { return new wxWebViewWebKit; }
virtual wxWebView* Create(wxWindow* parent,
wxWindowID id,
const wxString& url = wxWebViewDefaultURLStr,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = 0,
const wxString& name = wxWebViewNameStr) wxOVERRIDE
{ return new wxWebViewWebKit(parent, id, url, pos, size, style, name); }
};
#endif // wxUSE_WEBVIEW && wxUSE_WEBVIEW_WEBKIT && defined(__WXGTK__)
#endif