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ae26e17b93fd8c3dce7c66ce9f23475867160f62
wxWidgets/src/gtk/webview_webkit.cpp
Steve Lamerton ae26e17b93 Implement clipboard api in gtk. 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/SOC2011_WEBVIEW@68130 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2011-07-02 14:32:02 +00:00

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/////////////////////////////////////////////////////////////////////////////
// Name: src/gtk/webview_webkit.cpp
// Purpose: GTK WebKit backend for web view component
// Author: Marianne Gagnon, Robert Roebling
// Id: $Id$
// Copyright: (c) 2010 Marianne Gagnon, 1998 Robert Roebling
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#if wxUSE_WEBVIEW_WEBKIT
#include "wx/stockitem.h"
#include "wx/gtk/webview_webkit.h"
#include "wx/gtk/control.h"
#include "wx/gtk/private.h"
#include "webkit/webkit.h"
// ----------------------------------------------------------------------------
// GTK callbacks
// ----------------------------------------------------------------------------
extern "C"
{
static void
wxgtk_webkitctrl_load_status_callback(GtkWidget* widget, GParamSpec* arg1,
wxWebViewWebKit *webKitCtrl)
{
if (!webKitCtrl->m_ready) return;
wxString url = webKitCtrl->GetCurrentURL();
WebKitLoadStatus status;
g_object_get(G_OBJECT(widget), "load-status", &status, NULL);
wxString target; // TODO: get target (if possible)
if (status == WEBKIT_LOAD_FINISHED)
{
webKitCtrl->m_busy = false;
wxWebNavigationEvent thisEvent(wxEVT_COMMAND_WEB_VIEW_LOADED,
webKitCtrl->GetId(),
url, target, false);
if (webKitCtrl && webKitCtrl->GetEventHandler())
webKitCtrl->GetEventHandler()->ProcessEvent(thisEvent);
}
else if (status == WEBKIT_LOAD_COMMITTED)
{
webKitCtrl->m_busy = true;
wxWebNavigationEvent thisEvent(wxEVT_COMMAND_WEB_VIEW_NAVIGATED,
webKitCtrl->GetId(),
url, target, false);
if (webKitCtrl && webKitCtrl->GetEventHandler())
webKitCtrl->GetEventHandler()->ProcessEvent(thisEvent);
}
}
static WebKitNavigationResponse
wxgtk_webkitctrl_navigation_requ_callback(WebKitWebView *web_view,
WebKitWebFrame *frame,
WebKitNetworkRequest *request,
wxWebViewWebKit *webKitCtrl)
{
webKitCtrl->m_busy = true;
const gchar* uri = webkit_network_request_get_uri(request);
wxString target = webkit_web_frame_get_name (frame);
wxWebNavigationEvent thisEvent(wxEVT_COMMAND_WEB_VIEW_NAVIGATING,
webKitCtrl->GetId(),
wxString( uri, wxConvUTF8 ),
target,
true);
if (webKitCtrl && webKitCtrl->GetEventHandler())
webKitCtrl->GetEventHandler()->ProcessEvent(thisEvent);
if (thisEvent.IsVetoed())
{
webKitCtrl->m_busy = false;
return WEBKIT_NAVIGATION_RESPONSE_IGNORE;
}
else
{
return WEBKIT_NAVIGATION_RESPONSE_ACCEPT;
}
}
static gboolean
wxgtk_webkitctrl_error (WebKitWebView *web_view,
WebKitWebFrame *web_frame,
gchar *uri,
gpointer web_error,
wxWebViewWebKit* webKitWindow)
{
webKitWindow->m_busy = false;
wxWebNavigationError type = wxWEB_NAV_ERR_OTHER;
GError* error = (GError*)web_error;
wxString description(error->message, wxConvUTF8);
if (strcmp(g_quark_to_string(error->domain), "soup_http_error_quark") == 0)
{
switch (error->code)
{
case SOUP_STATUS_CANCELLED:
type = wxWEB_NAV_ERR_USER_CANCELLED;
break;
case SOUP_STATUS_CANT_RESOLVE:
case SOUP_STATUS_NOT_FOUND:
type = wxWEB_NAV_ERR_NOT_FOUND;
break;
case SOUP_STATUS_CANT_RESOLVE_PROXY:
case SOUP_STATUS_CANT_CONNECT:
case SOUP_STATUS_CANT_CONNECT_PROXY:
case SOUP_STATUS_SSL_FAILED:
case SOUP_STATUS_IO_ERROR:
type = wxWEB_NAV_ERR_CONNECTION;
break;
case SOUP_STATUS_MALFORMED:
//case SOUP_STATUS_TOO_MANY_REDIRECTS:
type = wxWEB_NAV_ERR_REQUEST;
break;
//case SOUP_STATUS_NO_CONTENT:
//case SOUP_STATUS_RESET_CONTENT:
case SOUP_STATUS_BAD_REQUEST:
type = wxWEB_NAV_ERR_REQUEST;
break;
case SOUP_STATUS_UNAUTHORIZED:
case SOUP_STATUS_FORBIDDEN:
type = wxWEB_NAV_ERR_AUTH;
break;
case SOUP_STATUS_METHOD_NOT_ALLOWED:
case SOUP_STATUS_NOT_ACCEPTABLE:
type = wxWEB_NAV_ERR_SECURITY;
break;
case SOUP_STATUS_PROXY_AUTHENTICATION_REQUIRED:
type = wxWEB_NAV_ERR_AUTH;
break;
case SOUP_STATUS_REQUEST_TIMEOUT:
type = wxWEB_NAV_ERR_CONNECTION;
break;
//case SOUP_STATUS_PAYMENT_REQUIRED:
case SOUP_STATUS_REQUEST_ENTITY_TOO_LARGE:
case SOUP_STATUS_REQUEST_URI_TOO_LONG:
case SOUP_STATUS_UNSUPPORTED_MEDIA_TYPE:
type = wxWEB_NAV_ERR_REQUEST;
break;
case SOUP_STATUS_BAD_GATEWAY:
case SOUP_STATUS_SERVICE_UNAVAILABLE:
case SOUP_STATUS_GATEWAY_TIMEOUT:
type = wxWEB_NAV_ERR_CONNECTION;
break;
case SOUP_STATUS_HTTP_VERSION_NOT_SUPPORTED:
type = wxWEB_NAV_ERR_REQUEST;
break;
//case SOUP_STATUS_INSUFFICIENT_STORAGE:
//case SOUP_STATUS_NOT_EXTENDED:
}
}
else if (strcmp(g_quark_to_string(error->domain),
"webkit-network-error-quark") == 0)
{
switch (error->code)
{
//WEBKIT_NETWORK_ERROR_FAILED:
//WEBKIT_NETWORK_ERROR_TRANSPORT:
case WEBKIT_NETWORK_ERROR_UNKNOWN_PROTOCOL:
type = wxWEB_NAV_ERR_REQUEST;
break;
case WEBKIT_NETWORK_ERROR_CANCELLED:
type = wxWEB_NAV_ERR_USER_CANCELLED;
break;
case WEBKIT_NETWORK_ERROR_FILE_DOES_NOT_EXIST:
type = wxWEB_NAV_ERR_NOT_FOUND;
break;
}
}
else if (strcmp(g_quark_to_string(error->domain),
"webkit-policy-error-quark") == 0)
{
switch (error->code)
{
//case WEBKIT_POLICY_ERROR_FAILED:
//case WEBKIT_POLICY_ERROR_CANNOT_SHOW_MIME_TYPE:
//case WEBKIT_POLICY_ERROR_CANNOT_SHOW_URL:
//case WEBKIT_POLICY_ERROR_FRAME_LOAD_INTERRUPTED_BY_POLICY_CHANGE:
case WEBKIT_POLICY_ERROR_CANNOT_USE_RESTRICTED_PORT:
type = wxWEB_NAV_ERR_SECURITY;
break;
}
}
/*
webkit_plugin_error_quark
else
{
printf("Error domain %s\n", g_quark_to_string(error->domain));
}
*/
wxWebNavigationEvent thisEvent(wxEVT_COMMAND_WEB_VIEW_ERROR,
webKitWindow->GetId(),
uri,
wxEmptyString,
false);
thisEvent.SetString(description);
thisEvent.SetInt(type);
if (webKitWindow && webKitWindow->GetEventHandler())
{
webKitWindow->GetEventHandler()->ProcessEvent(thisEvent);
}
return FALSE;
}
static gboolean
wxgtk_webkitctrl_new_window(WebKitWebView *webView,
WebKitWebFrame *frame,
WebKitNetworkRequest *request,
WebKitWebNavigationAction *navigation_action,
WebKitWebPolicyDecision *policy_decision,
wxWebViewWebKit *webKitCtrl)
{
const gchar* uri = webkit_network_request_get_uri(request);
wxString target = webkit_web_frame_get_name (frame);
wxWebNavigationEvent thisEvent(wxEVT_COMMAND_WEB_VIEW_NEWWINDOW,
webKitCtrl->GetId(),
wxString( uri, wxConvUTF8 ),
target,
true);
if (webKitCtrl && webKitCtrl->GetEventHandler())
webKitCtrl->GetEventHandler()->ProcessEvent(thisEvent);
if (thisEvent.IsVetoed())
{
webkit_web_policy_decision_ignore(policy_decision);
}
else
{
webkit_web_policy_decision_use(policy_decision);
}
return TRUE;
}
} // extern "C"
//-----------------------------------------------------------------------------
// wxWebViewWebKit
//-----------------------------------------------------------------------------
//IMPLEMENT_DYNAMIC_CLASS(wxWebViewWebKit, wxControl)
bool wxWebViewWebKit::Create(wxWindow *parent,
wxWindowID id,
const wxString &url,
const wxPoint& pos,
const wxSize& size,
long style,
const wxString& name)
{
m_ready = false;
m_busy = false;
if (!PreCreation( parent, pos, size ) ||
!CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
{
wxFAIL_MSG( wxT("wxWebViewWebKit creation failed") );
return false;
}
GtkWidget *scrolled_window = gtk_scrolled_window_new (NULL, NULL);
web_view = webkit_web_view_new ();
g_object_ref(web_view); // TODO: check memory management
m_widget = scrolled_window;
g_object_ref(m_widget); // TODO: check memory management
/* Place the WebKitWebView in the GtkScrolledWindow */
gtk_container_add (GTK_CONTAINER (scrolled_window), web_view);
gtk_widget_show(m_widget);
gtk_widget_show(web_view);
g_signal_connect_after(web_view, "notify::load-status",
G_CALLBACK(wxgtk_webkitctrl_load_status_callback),
this);
g_signal_connect_after(web_view, "navigation-requested",
G_CALLBACK(wxgtk_webkitctrl_navigation_requ_callback),
this);
g_signal_connect_after(web_view, "load-error",
G_CALLBACK(wxgtk_webkitctrl_error),
this);
g_signal_connect_after(web_view, "new-window-policy-decision-requested",
G_CALLBACK(wxgtk_webkitctrl_new_window), this);
m_parent->DoAddChild( this );
PostCreation(size);
/* Open a webpage */
webkit_web_view_load_uri (WEBKIT_WEB_VIEW (web_view), url);
//Get the initial history limit so we can enable and disable it later
WebKitWebBackForwardList* history;
history = webkit_web_view_get_back_forward_list(WEBKIT_WEB_VIEW(web_view));
m_historyLimit = webkit_web_back_forward_list_get_limit(history);
m_ready = true;
return true;
}
bool wxWebViewWebKit::Enable( bool enable )
{
if (!wxControl::Enable(enable))
return false;
gtk_widget_set_sensitive(GTK_BIN(m_widget)->child, enable);
//if (enable)
// GTKFixSensitivity();
return true;
}
GdkWindow*
wxWebViewWebKit::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
{
GdkWindow* window = gtk_widget_get_parent_window(m_widget);
return window;
}
void wxWebViewWebKit::ZoomIn()
{
webkit_web_view_zoom_in (WEBKIT_WEB_VIEW(web_view));
}
void wxWebViewWebKit::ZoomOut()
{
webkit_web_view_zoom_out (WEBKIT_WEB_VIEW(web_view));
}
void wxWebViewWebKit::SetWebkitZoom(float level)
{
webkit_web_view_set_zoom_level (WEBKIT_WEB_VIEW(web_view), level);
}
float wxWebViewWebKit::GetWebkitZoom()
{
return webkit_web_view_get_zoom_level (WEBKIT_WEB_VIEW(web_view));
}
void wxWebViewWebKit::Stop()
{
webkit_web_view_stop_loading (WEBKIT_WEB_VIEW(web_view));
}
void wxWebViewWebKit::Reload(wxWebViewReloadFlags flags)
{
if (flags & wxWEB_VIEW_RELOAD_NO_CACHE)
{
webkit_web_view_reload_bypass_cache (WEBKIT_WEB_VIEW(web_view));
}
else
{
webkit_web_view_reload (WEBKIT_WEB_VIEW(web_view));
}
}
void wxWebViewWebKit::LoadUrl(const wxString& url)
{
webkit_web_view_load_uri(WEBKIT_WEB_VIEW(web_view), wxGTK_CONV(url));
}
void wxWebViewWebKit::GoBack()
{
webkit_web_view_go_back (WEBKIT_WEB_VIEW(web_view));
}
void wxWebViewWebKit::GoForward()
{
webkit_web_view_go_forward (WEBKIT_WEB_VIEW(web_view));
}
bool wxWebViewWebKit::CanGoBack()
{
return webkit_web_view_can_go_back (WEBKIT_WEB_VIEW(web_view));
}
bool wxWebViewWebKit::CanGoForward()
{
return webkit_web_view_can_go_forward (WEBKIT_WEB_VIEW(web_view));
}
void wxWebViewWebKit::ClearHistory()
{
WebKitWebBackForwardList* history;
history = webkit_web_view_get_back_forward_list(WEBKIT_WEB_VIEW(web_view));
webkit_web_back_forward_list_clear(history);
}
void wxWebViewWebKit::EnableHistory(bool enable)
{
WebKitWebBackForwardList* history;
history = webkit_web_view_get_back_forward_list(WEBKIT_WEB_VIEW(web_view));
if(enable)
{
webkit_web_back_forward_list_set_limit(history, m_historyLimit);
}
else
{
webkit_web_back_forward_list_set_limit(history, 0);
}
}
wxVector<wxSharedPtr<wxWebHistoryItem> > wxWebViewWebKit::GetBackwardHistory()
{
wxVector<wxSharedPtr<wxWebHistoryItem> > backhist;
WebKitWebBackForwardList* history;
history = webkit_web_view_get_back_forward_list(WEBKIT_WEB_VIEW(web_view));
GList* list = webkit_web_back_forward_list_get_back_list_with_limit(history,
m_historyLimit);
//We need to iterate in reverse to get the order we desire
for(int i = g_list_length(list) - 1; i >= 0 ; i--)
{
WebKitWebHistoryItem* gtkitem = (WebKitWebHistoryItem*)g_list_nth_data(list, i);
wxSharedPtr<wxWebHistoryItem> item(new wxWebHistoryItem(
webkit_web_history_item_get_uri(gtkitem),
webkit_web_history_item_get_title(gtkitem)));
backhist.push_back(item);
m_historyMap[item] = gtkitem;
}
return backhist;
}
wxVector<wxSharedPtr<wxWebHistoryItem> > wxWebViewWebKit::GetForwardHistory()
{
wxVector<wxSharedPtr<wxWebHistoryItem> > forwardhist;
WebKitWebBackForwardList* history;
history = webkit_web_view_get_back_forward_list(WEBKIT_WEB_VIEW(web_view));
GList* list = webkit_web_back_forward_list_get_forward_list_with_limit(history,
m_historyLimit);
for(guint i = 0; i < g_list_length(list); i++)
{
WebKitWebHistoryItem* gtkitem = (WebKitWebHistoryItem*)g_list_nth_data(list, i);
wxSharedPtr<wxWebHistoryItem> item(new wxWebHistoryItem(
webkit_web_history_item_get_uri(gtkitem),
webkit_web_history_item_get_title(gtkitem)));
forwardhist.push_back(item);
m_historyMap[item] = gtkitem;
}
return forwardhist;
}
void wxWebViewWebKit::LoadHistoryItem(wxSharedPtr<wxWebHistoryItem> item)
{
WebKitWebHistoryItem* gtkitem = m_historyMap[item];
if(gtkitem)
{
WebKitWebBackForwardList* history;
history = webkit_web_view_get_back_forward_list(WEBKIT_WEB_VIEW(web_view));
webkit_web_back_forward_list_go_to_item(history, gtkitem);
}
}
bool wxWebViewWebKit::CanCut()
{
return webkit_web_view_can_cut_clipboard(WEBKIT_WEB_VIEW(web_view));
}
bool wxWebViewWebKit::CanCopy()
{
return webkit_web_view_can_copy_clipboard(WEBKIT_WEB_VIEW(web_view));
}
bool wxWebViewWebKit::CanPaste()
{
return webkit_web_view_can_paste_clipboard(WEBKIT_WEB_VIEW(web_view));
}
void wxWebViewWebKit::Cut()
{
webkit_web_view_cut_clipboard(WEBKIT_WEB_VIEW(web_view));
}
void wxWebViewWebKit::Copy()
{
webkit_web_view_copy_clipboard(WEBKIT_WEB_VIEW(web_view));
}
void wxWebViewWebKit::Paste()
{
webkit_web_view_paste_clipboard(WEBKIT_WEB_VIEW(web_view));
}
wxString wxWebViewWebKit::GetCurrentURL()
{
// FIXME: check which encoding the web kit control uses instead of
// assuming UTF8 (here and elsewhere too)
return wxString::FromUTF8(webkit_web_view_get_uri(
WEBKIT_WEB_VIEW(web_view)));
}
wxString wxWebViewWebKit::GetCurrentTitle()
{
return wxString::FromUTF8(webkit_web_view_get_title(
WEBKIT_WEB_VIEW(web_view)));
}
wxString wxWebViewWebKit::GetPageSource()
{
WebKitWebFrame* frame = webkit_web_view_get_main_frame(
WEBKIT_WEB_VIEW(web_view));
WebKitWebDataSource* src = webkit_web_frame_get_data_source (frame);
// TODO: check encoding with
// const gchar*
// webkit_web_data_source_get_encoding(WebKitWebDataSource *data_source);
return wxString(webkit_web_data_source_get_data (src)->str, wxConvUTF8);
}
wxWebViewZoom wxWebViewWebKit::GetZoom()
{
float zoom = GetWebkitZoom();
// arbitrary way to map float zoom to our common zoom enum
if (zoom <= 0.65)
{
return wxWEB_VIEW_ZOOM_TINY;
}
else if (zoom > 0.65 && zoom <= 0.90)
{
return wxWEB_VIEW_ZOOM_SMALL;
}
else if (zoom > 0.90 && zoom <= 1.15)
{
return wxWEB_VIEW_ZOOM_MEDIUM;
}
else if (zoom > 1.15 && zoom <= 1.45)
{
return wxWEB_VIEW_ZOOM_LARGE;
}
else if (zoom > 1.45)
{
return wxWEB_VIEW_ZOOM_LARGEST;
}
// to shut up compilers, this can never be reached logically
wxASSERT(false);
return wxWEB_VIEW_ZOOM_MEDIUM;
}
void wxWebViewWebKit::SetZoom(wxWebViewZoom zoom)
{
// arbitrary way to map our common zoom enum to float zoom
switch (zoom)
{
case wxWEB_VIEW_ZOOM_TINY:
SetWebkitZoom(0.6f);
break;
case wxWEB_VIEW_ZOOM_SMALL:
SetWebkitZoom(0.8f);
break;
case wxWEB_VIEW_ZOOM_MEDIUM:
SetWebkitZoom(1.0f);
break;
case wxWEB_VIEW_ZOOM_LARGE:
SetWebkitZoom(1.3);
break;
case wxWEB_VIEW_ZOOM_LARGEST:
SetWebkitZoom(1.6);
break;
default:
wxASSERT(false);
}
}
void wxWebViewWebKit::SetZoomType(wxWebViewZoomType type)
{
webkit_web_view_set_full_content_zoom(WEBKIT_WEB_VIEW(web_view),
(type == wxWEB_VIEW_ZOOM_TYPE_LAYOUT ?
TRUE : FALSE));
}
wxWebViewZoomType wxWebViewWebKit::GetZoomType() const
{
gboolean fczoom = webkit_web_view_get_full_content_zoom(
WEBKIT_WEB_VIEW(web_view));
if (fczoom) return wxWEB_VIEW_ZOOM_TYPE_LAYOUT;
else return wxWEB_VIEW_ZOOM_TYPE_TEXT;
}
bool wxWebViewWebKit::CanSetZoomType(wxWebViewZoomType) const
{
// this port supports all zoom types
return true;
}
void wxWebViewWebKit::SetPage(const wxString& html, const wxString& baseUri)
{
webkit_web_view_load_string (WEBKIT_WEB_VIEW(web_view),
html.mb_str(wxConvUTF8),
"text/html",
"UTF-8",
baseUri.mb_str(wxConvUTF8));
}
void wxWebViewWebKit::Print()
{
WebKitWebFrame* frame = webkit_web_view_get_main_frame(
WEBKIT_WEB_VIEW(web_view));
webkit_web_frame_print (frame);
// GtkPrintOperationResult webkit_web_frame_print_full
// (WebKitWebFrame *frame,
// GtkPrintOperation *operation,
// GtkPrintOperationAction action,
// GError **error);
}
bool wxWebViewWebKit::IsBusy()
{
return m_busy;
// This code looks nice but returns true after a page was cancelled
/*
WebKitLoadStatus status = webkit_web_view_get_load_status
(WEBKIT_WEB_VIEW(web_view));
#if WEBKIT_CHECK_VERSION(1,1,16)
// WEBKIT_LOAD_FAILED is new in webkit 1.1.16
if (status == WEBKIT_LOAD_FAILED)
{
return false;
}
#endif
if (status == WEBKIT_LOAD_FINISHED)
{
return false;
}
return true;
*/
}
// static
wxVisualAttributes
wxWebViewWebKit::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
{
return GetDefaultAttributesFromGTKWidget(webkit_web_view_new);
}
#endif // wxHAVE_WEB_BACKEND_GTK_WEBKIT
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