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wxWidgets/src/gtk/webview_webkit2.cpp
Tobias Taschner 93f7df50d5 Implement RunScriptAsync for webkit2
2021-11-03 11:19:08 +01:00

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/////////////////////////////////////////////////////////////////////////////
// Name: src/gtk/webview_webkit2.cpp
// Purpose: GTK WebKit2 backend for web view component
// Author: Scott Talbert
// Copyright: (c) 2017 Scott Talbert
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#if wxUSE_WEBVIEW && wxUSE_WEBVIEW_WEBKIT2
#include "wx/dir.h"
#include "wx/dynlib.h"
#include "wx/filename.h"
#include "wx/stdpaths.h"
#include "wx/stockitem.h"
#include "wx/gtk/webview_webkit.h"
#include "wx/gtk/control.h"
#include "wx/gtk/private.h"
#include "wx/filesys.h"
#include "wx/base64.h"
#include "wx/log.h"
#include "wx/gtk/private/webview_webkit2_extension.h"
#include "wx/gtk/private/string.h"
#include "wx/gtk/private/webkit.h"
#include "wx/gtk/private/error.h"
#include "wx/private/jsscriptwrapper.h"
#include <webkit2/webkit2.h>
#include <JavaScriptCore/JSValueRef.h>
#include <JavaScriptCore/JSStringRef.h>
// Helper function to get string from Webkit JS result
bool wxGetStringFromJSResult(WebKitJavascriptResult* js_result, wxString* output)
{
JSGlobalContextRef context = webkit_javascript_result_get_global_context(js_result);
JSValueRef value = webkit_javascript_result_get_value(js_result);
JSValueRef exception = NULL;
wxJSStringRef js_value
(
JSValueIsObject(context, value)
? JSValueCreateJSONString(context, value, 0, &exception)
: JSValueToStringCopy(context, value, &exception)
);
if ( exception )
{
if ( output )
{
wxJSStringRef ex_value(JSValueToStringCopy(context, exception, NULL));
*output = ex_value.ToWxString();
}
return false;
}
if ( output != NULL )
*output = js_value.ToWxString();
return true;
}
// ----------------------------------------------------------------------------
// GTK callbacks
// ----------------------------------------------------------------------------
extern "C"
{
static void
wxgtk_webview_webkit_load_changed(GtkWidget *,
WebKitLoadEvent load_event,
wxWebViewWebKit *webKitCtrl)
{
wxString url = webKitCtrl->GetCurrentURL();
wxString target; // TODO: get target (if possible)
if (load_event == WEBKIT_LOAD_FINISHED)
{
webKitCtrl->m_busy = false;
wxWebViewEvent event(wxEVT_WEBVIEW_LOADED,
webKitCtrl->GetId(),
url, target);
event.SetEventObject(webKitCtrl);
webKitCtrl->HandleWindowEvent(event);
}
else if (load_event == WEBKIT_LOAD_COMMITTED)
{
webKitCtrl->m_busy = true;
wxWebViewEvent event(wxEVT_WEBVIEW_NAVIGATED,
webKitCtrl->GetId(),
url, target);
event.SetEventObject(webKitCtrl);
webKitCtrl->HandleWindowEvent(event);
}
}
static gboolean
wxgtk_webview_webkit_navigation(WebKitWebView *,
WebKitPolicyDecision *decision,
wxWebViewWebKit *webKitCtrl)
{
WebKitNavigationPolicyDecision* navigation_decision = WEBKIT_NAVIGATION_POLICY_DECISION(decision);
WebKitNavigationAction* action = webkit_navigation_policy_decision_get_navigation_action(navigation_decision);
WebKitURIRequest* request = webkit_navigation_action_get_request(action);
const gchar* uri = webkit_uri_request_get_uri(request);
wxString target = webkit_navigation_policy_decision_get_frame_name(navigation_decision);
//If m_creating is true then we are the result of a new window
//and so we need to send the event and veto the load
if(webKitCtrl->m_creating)
{
webKitCtrl->m_creating = false;
wxWebViewEvent event(wxEVT_WEBVIEW_NEWWINDOW,
webKitCtrl->GetId(),
wxString(uri, wxConvUTF8),
target);
event.SetEventObject(webKitCtrl);
webKitCtrl->HandleWindowEvent(event);
webkit_policy_decision_ignore(decision);
return TRUE;
}
webKitCtrl->m_busy = true;
wxWebViewEvent event(wxEVT_WEBVIEW_NAVIGATING,
webKitCtrl->GetId(),
wxString( uri, wxConvUTF8 ),
target);
event.SetEventObject(webKitCtrl);
webKitCtrl->HandleWindowEvent(event);
if (!event.IsAllowed())
{
webKitCtrl->m_busy = false;
webkit_policy_decision_ignore(decision);
return TRUE;
}
else
{
return FALSE;
}
}
static gboolean
wxgtk_webview_webkit_load_failed(WebKitWebView *,
WebKitLoadEvent,
gchar *uri,
GError *error,
wxWebViewWebKit* webKitWindow)
{
webKitWindow->m_busy = false;
wxWebViewNavigationError type = wxWEBVIEW_NAV_ERR_OTHER;
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 = wxWEBVIEW_NAV_ERR_USER_CANCELLED;
break;
case SOUP_STATUS_CANT_RESOLVE:
case SOUP_STATUS_NOT_FOUND:
type = wxWEBVIEW_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 = wxWEBVIEW_NAV_ERR_CONNECTION;
break;
case SOUP_STATUS_MALFORMED:
type = wxWEBVIEW_NAV_ERR_REQUEST;
break;
case SOUP_STATUS_BAD_REQUEST:
type = wxWEBVIEW_NAV_ERR_REQUEST;
break;
case SOUP_STATUS_UNAUTHORIZED:
case SOUP_STATUS_FORBIDDEN:
type = wxWEBVIEW_NAV_ERR_AUTH;
break;
case SOUP_STATUS_METHOD_NOT_ALLOWED:
case SOUP_STATUS_NOT_ACCEPTABLE:
type = wxWEBVIEW_NAV_ERR_SECURITY;
break;
case SOUP_STATUS_PROXY_AUTHENTICATION_REQUIRED:
type = wxWEBVIEW_NAV_ERR_AUTH;
break;
case SOUP_STATUS_REQUEST_TIMEOUT:
type = wxWEBVIEW_NAV_ERR_CONNECTION;
break;
case SOUP_STATUS_REQUEST_ENTITY_TOO_LARGE:
case SOUP_STATUS_REQUEST_URI_TOO_LONG:
case SOUP_STATUS_UNSUPPORTED_MEDIA_TYPE:
type = wxWEBVIEW_NAV_ERR_REQUEST;
break;
case SOUP_STATUS_BAD_GATEWAY:
case SOUP_STATUS_SERVICE_UNAVAILABLE:
case SOUP_STATUS_GATEWAY_TIMEOUT:
type = wxWEBVIEW_NAV_ERR_CONNECTION;
break;
case SOUP_STATUS_HTTP_VERSION_NOT_SUPPORTED:
type = wxWEBVIEW_NAV_ERR_REQUEST;
break;
}
}
else if (strcmp(g_quark_to_string(error->domain),
"webkit-network-error-quark") == 0)
{
switch (error->code)
{
case WEBKIT_NETWORK_ERROR_UNKNOWN_PROTOCOL:
type = wxWEBVIEW_NAV_ERR_REQUEST;
break;
case WEBKIT_NETWORK_ERROR_CANCELLED:
type = wxWEBVIEW_NAV_ERR_USER_CANCELLED;
break;
case WEBKIT_NETWORK_ERROR_FILE_DOES_NOT_EXIST:
type = wxWEBVIEW_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_CANNOT_USE_RESTRICTED_PORT:
type = wxWEBVIEW_NAV_ERR_SECURITY;
break;
}
}
wxWebViewEvent event(wxEVT_WEBVIEW_ERROR,
webKitWindow->GetId(),
uri, "");
event.SetEventObject(webKitWindow);
event.SetString(description);
event.SetInt(type);
webKitWindow->HandleWindowEvent(event);
return FALSE;
}
static gboolean
wxgtk_webview_webkit_new_window(WebKitPolicyDecision *decision,
wxWebViewWebKit *webKitCtrl)
{
WebKitNavigationPolicyDecision* navigation_decision = WEBKIT_NAVIGATION_POLICY_DECISION(decision);
WebKitNavigationAction* action = webkit_navigation_policy_decision_get_navigation_action(navigation_decision);
WebKitURIRequest* request = webkit_navigation_action_get_request(action);
const gchar* uri = webkit_uri_request_get_uri(request);
wxString target = webkit_navigation_policy_decision_get_frame_name(navigation_decision);
wxWebViewEvent event(wxEVT_WEBVIEW_NEWWINDOW,
webKitCtrl->GetId(),
wxString( uri, wxConvUTF8 ),
target);
event.SetEventObject(webKitCtrl);
webKitCtrl->HandleWindowEvent(event);
//We always want the user to handle this themselves
webkit_policy_decision_ignore(decision);
return TRUE;
}
static gboolean
wxgtk_webview_webkit_enter_fullscreen(WebKitWebView *WXUNUSED(web_view),
wxWebViewWebKit *webKitCtrl)
{
wxWebViewEvent event(wxEVT_WEBVIEW_FULLSCREEN_CHANGED,
webKitCtrl->GetId(),
wxString(),
wxString());
event.SetEventObject(webKitCtrl);
event.SetInt(1);
webKitCtrl->HandleWindowEvent(event);
return FALSE;
}
static gboolean
wxgtk_webview_webkit_leave_fullscreen(WebKitWebView *WXUNUSED(web_view),
wxWebViewWebKit *webKitCtrl)
{
wxWebViewEvent event(wxEVT_WEBVIEW_FULLSCREEN_CHANGED,
webKitCtrl->GetId(),
wxString(),
wxString());
event.SetEventObject(webKitCtrl);
event.SetInt(0);
webKitCtrl->HandleWindowEvent(event);
return FALSE;
}
static void
wxgtk_webview_webkit_script_message_received(WebKitUserContentManager *WXUNUSED(content_manager),
WebKitJavascriptResult *js_result,
wxWebViewWebKit *webKitCtrl)
{
wxWebViewEvent event(wxEVT_WEBVIEW_SCRIPT_MESSAGE_RECEIVED,
webKitCtrl->GetId(),
webKitCtrl->GetCurrentURL(),
"");
wxString msgStr;
if (wxGetStringFromJSResult(js_result, &msgStr))
event.SetString(msgStr);
webKitCtrl->HandleWindowEvent(event);
}
static gboolean
wxgtk_webview_webkit_decide_policy(WebKitWebView *web_view,
WebKitPolicyDecision *decision,
WebKitPolicyDecisionType type,
wxWebViewWebKit *webKitCtrl)
{
switch (type)
{
case WEBKIT_POLICY_DECISION_TYPE_NAVIGATION_ACTION:
return wxgtk_webview_webkit_navigation(web_view, decision, webKitCtrl);
case WEBKIT_POLICY_DECISION_TYPE_NEW_WINDOW_ACTION:
return wxgtk_webview_webkit_new_window(decision, webKitCtrl);
default:
return FALSE;
}
}
static void
wxgtk_webview_webkit_title_changed(GtkWidget* widget,
GParamSpec *,
wxWebViewWebKit *webKitCtrl)
{
gchar *title;
g_object_get(G_OBJECT(widget), "title", &title, NULL);
wxWebViewEvent event(wxEVT_WEBVIEW_TITLE_CHANGED,
webKitCtrl->GetId(),
webKitCtrl->GetCurrentURL(),
"");
event.SetEventObject(webKitCtrl);
event.SetString(wxString(title, wxConvUTF8));
webKitCtrl->HandleWindowEvent(event);
g_free(title);
}
static void
wxgtk_webview_webkit_uri_scheme_request_cb(WebKitURISchemeRequest *request,
wxWebViewWebKit *webKitCtrl)
{
const wxString scheme = wxString::FromUTF8(webkit_uri_scheme_request_get_scheme(request));
wxSharedPtr<wxWebViewHandler> handler;
wxVector<wxSharedPtr<wxWebViewHandler> > handlers = webKitCtrl->GetHandlers();
for(wxVector<wxSharedPtr<wxWebViewHandler> >::iterator it = handlers.begin();
it != handlers.end(); ++it)
{
if(scheme == (*it)->GetName())
{
handler = (*it);
}
}
if(handler)
{
const wxString uri = wxString::FromUTF8(webkit_uri_scheme_request_get_uri(request));
wxFSFile* file = handler->GetFile(uri);
if(file)
{
gint64 length = file->GetStream()->GetLength();
guint8 *data = g_new(guint8, length);
file->GetStream()->Read(data, length);
GInputStream *stream = g_memory_input_stream_new_from_data(data,
length,
g_free);
wxString mime = file->GetMimeType();
webkit_uri_scheme_request_finish(request, stream, length, mime.utf8_str());
}
else
{
wxGtkError error(g_error_new(WEBKIT_NETWORK_ERROR,
WEBKIT_NETWORK_ERROR_FILE_DOES_NOT_EXIST,
"File not found: %s", uri.utf8_str().data()));
webkit_uri_scheme_request_finish_error(request, error);
}
}
else
{
wxGtkError error(g_error_new(WEBKIT_NETWORK_ERROR,
WEBKIT_NETWORK_ERROR_UNKNOWN_PROTOCOL,
"Unknown scheme: %s", scheme.utf8_str().data()));
webkit_uri_scheme_request_finish_error(request, error);
}
}
static gboolean
wxgtk_webview_webkit_context_menu(WebKitWebView *,
WebKitContextMenu *,
GdkEvent *,
WebKitHitTestResult *,
wxWebViewWebKit *webKitCtrl)
{
return !webKitCtrl->IsContextMenuEnabled();
}
static WebKitWebView*
wxgtk_webview_webkit_create_webview(WebKitWebView *web_view,
WebKitNavigationAction *,
wxWebViewWebKit *webKitCtrl)
{
//As we do not know the uri being loaded at this point allow the load to
//continue and catch it in navigation-policy-decision-requested
webKitCtrl->m_creating = true;
return web_view;
}
static void
wxgtk_webview_webkit_counted_matches(WebKitFindController *,
guint match_count,
int *findCount)
{
*findCount = match_count;
}
// This function checks if the specified directory contains our web extension.
static bool CheckDirectoryForWebExt(const wxString& dirname)
{
wxDir dir;
if ( !wxDir::Exists(dirname) || !dir.Open(dirname) )
return false;
wxString file;
bool cont = dir.GetFirst
(
&file,
"webkit2_ext*" + wxDynamicLibrary::GetDllExt(wxDL_MODULE),
wxDIR_FILES
);
while ( cont )
{
wxDynamicLibrary dl;
if ( dl.Load(wxFileName(dirname, file).GetFullPath(),
wxDL_VERBATIM | wxDL_LAZY) &&
dl.HasSymbol("webkit_web_extension_initialize_with_user_data") )
{
// Looks like our extension.
return true;
}
cont = dir.GetNext(&file);
}
return false;
}
static bool TrySetWebExtensionsDirectory(WebKitWebContext *context, const wxString& dir)
{
if (dir.empty() || !CheckDirectoryForWebExt(dir))
return false;
webkit_web_context_set_web_extensions_directory(context, dir.utf8_str());
return true;
}
static wxString GetStandardWebExtensionsDir()
{
wxString dir = wxDynamicLibrary::GetPluginsDirectory();
if ( !dir.empty() )
dir += "/web-extensions";
return dir;
}
static void
wxgtk_initialize_web_extensions(WebKitWebContext *context,
GDBusServer *dbusServer)
{
const char *address = g_dbus_server_get_client_address(dbusServer);
GVariant *user_data = g_variant_new("(s)", address);
// Try to setup extension loading from the location it is supposed to be
// normally installed in.
if ( !TrySetWebExtensionsDirectory(context, GetStandardWebExtensionsDir()) )
{
// These relative locations are used as fallbacks to allow running
// the tests and sample using wxWebView before installing it.
wxString exepath = wxFileName(wxStandardPaths::Get().GetExecutablePath()).GetPath();
if ( !exepath.empty() )
{
wxString const directories[] =
{
exepath + "/..",
exepath + "/../..",
exepath + "/lib",
};
for ( size_t n = 0; n < WXSIZEOF(directories); ++n )
{
if ( !TrySetWebExtensionsDirectory(context, directories[n]) )
break;
}
}
}
webkit_web_context_set_web_extensions_initialization_user_data(context,
user_data);
}
static gboolean
wxgtk_new_connection_cb(GDBusServer *,
GDBusConnection *connection,
GDBusProxy **proxy)
{
GError *error = NULL;
GDBusProxyFlags flags = GDBusProxyFlags(G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES | G_DBUS_PROXY_FLAGS_DO_NOT_CONNECT_SIGNALS);
*proxy = g_dbus_proxy_new_sync(connection,
flags,
NULL,
NULL,
WXGTK_WEB_EXTENSION_OBJECT_PATH,
WXGTK_WEB_EXTENSION_INTERFACE,
NULL,
&error);
if (error)
{
g_warning("Failed to create dbus proxy: %s", error->message);
g_error_free(error);
}
return TRUE;
}
static
gboolean
wxgtk_dbus_peer_is_authorized(GCredentials *peer_credentials)
{
static GCredentials *own_credentials = g_credentials_new();
GError *error = NULL;
if (peer_credentials && g_credentials_is_same_user(peer_credentials, own_credentials, &error))
{
return TRUE;
}
if (error)
{
g_warning("Failed to authorize web extension connection: %s", error->message);
g_error_free(error);
}
return FALSE;
}
static gboolean
wxgtk_authorize_authenticated_peer_cb(GDBusAuthObserver *,
GIOStream *,
GCredentials *credentials,
wxWebViewWebKit *)
{
return wxgtk_dbus_peer_is_authorized(credentials);
}
} // extern "C"
//-----------------------------------------------------------------------------
// wxWebViewFactoryWebKit
//-----------------------------------------------------------------------------
wxVersionInfo wxWebViewFactoryWebKit::GetVersionInfo()
{
return wxVersionInfo("webkit2", webkit_get_major_version(),
webkit_get_minor_version(), webkit_get_micro_version());
}
//-----------------------------------------------------------------------------
// wxWebViewWebKit
//-----------------------------------------------------------------------------
wxIMPLEMENT_DYNAMIC_CLASS(wxWebViewWebKit, wxWebView);
wxWebViewWebKit::wxWebViewWebKit()
{
m_web_view = NULL;
m_dbusServer = NULL;
m_extension = NULL;
}
bool wxWebViewWebKit::Create(wxWindow *parent,
wxWindowID id,
const wxString &url,
const wxPoint& pos,
const wxSize& size,
long style,
const wxString& name)
{
m_web_view = NULL;
m_dbusServer = NULL;
m_extension = NULL;
m_busy = false;
m_guard = false;
m_creating = false;
FindClear();
// We currently unconditionally impose scrolling in both directions as it's
// necessary to show arbitrary pages.
style |= wxHSCROLL | wxVSCROLL;
if (!PreCreation( parent, pos, size ) ||
!CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
{
wxFAIL_MSG( wxT("wxWebViewWebKit creation failed") );
return false;
}
SetupWebExtensionServer();
g_signal_connect(webkit_web_context_get_default(),
"initialize-web-extensions",
G_CALLBACK(wxgtk_initialize_web_extensions),
m_dbusServer);
m_web_view = WEBKIT_WEB_VIEW(webkit_web_view_new());
GTKCreateScrolledWindowWith(GTK_WIDGET(m_web_view));
g_object_ref(m_widget);
if (!m_customUserAgent.empty())
SetUserAgent(m_customUserAgent);
g_signal_connect(m_web_view, "decide-policy",
G_CALLBACK(wxgtk_webview_webkit_decide_policy),
this);
g_signal_connect(m_web_view, "load-failed",
G_CALLBACK(wxgtk_webview_webkit_load_failed), this);
g_signal_connect(m_web_view, "notify::title",
G_CALLBACK(wxgtk_webview_webkit_title_changed), this);
g_signal_connect(m_web_view, "context-menu",
G_CALLBACK(wxgtk_webview_webkit_context_menu), this);
g_signal_connect(m_web_view, "create",
G_CALLBACK(wxgtk_webview_webkit_create_webview), this);
g_signal_connect(m_web_view, "enter-fullscreen",
G_CALLBACK(wxgtk_webview_webkit_enter_fullscreen), this);
g_signal_connect(m_web_view, "leave-fullscreen",
G_CALLBACK(wxgtk_webview_webkit_leave_fullscreen), this);
WebKitFindController* findctrl = webkit_web_view_get_find_controller(m_web_view);
g_signal_connect(findctrl, "counted-matches",
G_CALLBACK(wxgtk_webview_webkit_counted_matches),
&m_findCount);
m_parent->DoAddChild( this );
PostCreation(size);
/* Open a webpage */
webkit_web_view_load_uri(m_web_view, url.utf8_str());
// last to avoid getting signal too early
g_signal_connect(m_web_view, "load-changed",
G_CALLBACK(wxgtk_webview_webkit_load_changed),
this);
return true;
}
wxWebViewWebKit::~wxWebViewWebKit()
{
if (m_web_view)
GTKDisconnect(m_web_view);
if (m_dbusServer)
{
g_dbus_server_stop(m_dbusServer);
g_signal_handlers_disconnect_by_data(
webkit_web_context_get_default(), m_dbusServer);
}
g_clear_object(&m_dbusServer);
g_clear_object(&m_extension);
}
bool wxWebViewWebKit::Enable( bool enable )
{
if (!wxControl::Enable(enable))
return false;
gtk_widget_set_sensitive(gtk_bin_get_child(GTK_BIN(m_widget)), enable);
return true;
}
GdkWindow*
wxWebViewWebKit::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
{
GdkWindow* window = gtk_widget_get_parent_window(m_widget);
return window;
}
void wxWebViewWebKit::ZoomIn()
{
SetWebkitZoom(GetWebkitZoom() + 0.1f);
}
void wxWebViewWebKit::ZoomOut()
{
SetWebkitZoom(GetWebkitZoom() - 0.1f);
}
void wxWebViewWebKit::SetWebkitZoom(float level)
{
webkit_web_view_set_zoom_level(m_web_view, double(level));
}
float wxWebViewWebKit::GetWebkitZoom() const
{
return webkit_web_view_get_zoom_level(m_web_view);
}
void wxWebViewWebKit::EnableAccessToDevTools(bool enable)
{
WebKitSettings* settings = webkit_web_view_get_settings(m_web_view);
webkit_settings_set_enable_developer_extras(settings, enable);
}
bool wxWebViewWebKit::IsAccessToDevToolsEnabled() const
{
WebKitSettings* settings = webkit_web_view_get_settings(m_web_view);
return webkit_settings_get_enable_developer_extras(settings);
}
bool wxWebViewWebKit::SetUserAgent(const wxString& userAgent)
{
if (m_web_view)
{
WebKitSettings* settings = webkit_web_view_get_settings(m_web_view);
webkit_settings_set_user_agent(settings, userAgent.utf8_str());
}
else
m_customUserAgent = userAgent;
return true;
}
void wxWebViewWebKit::Stop()
{
webkit_web_view_stop_loading(m_web_view);
}
void wxWebViewWebKit::Reload(wxWebViewReloadFlags flags)
{
if (flags & wxWEBVIEW_RELOAD_NO_CACHE)
{
webkit_web_view_reload_bypass_cache(m_web_view);
}
else
{
webkit_web_view_reload(m_web_view);
}
}
void wxWebViewWebKit::LoadURL(const wxString& url)
{
webkit_web_view_load_uri(m_web_view, wxGTK_CONV(url));
}
void wxWebViewWebKit::GoBack()
{
webkit_web_view_go_back(m_web_view);
}
void wxWebViewWebKit::GoForward()
{
webkit_web_view_go_forward(m_web_view);
}
bool wxWebViewWebKit::CanGoBack() const
{
return webkit_web_view_can_go_back(m_web_view) != 0;
}
bool wxWebViewWebKit::CanGoForward() const
{
return webkit_web_view_can_go_forward(m_web_view) != 0;
}
void wxWebViewWebKit::ClearHistory()
{
// In WebKit2GTK+, the BackForwardList can't be cleared so do nothing.
}
void wxWebViewWebKit::EnableHistory(bool)
{
// In WebKit2GTK+, history can't be disabled so do nothing here.
}
wxVector<wxSharedPtr<wxWebViewHistoryItem> > wxWebViewWebKit::GetBackwardHistory()
{
wxVector<wxSharedPtr<wxWebViewHistoryItem> > backhist;
WebKitBackForwardList* history =
webkit_web_view_get_back_forward_list(m_web_view);
GList* list = webkit_back_forward_list_get_back_list(history);
//We need to iterate in reverse to get the order we desire
for(int i = g_list_length(list) - 1; i >= 0 ; i--)
{
WebKitBackForwardListItem* gtkitem = (WebKitBackForwardListItem*)g_list_nth_data(list, i);
wxWebViewHistoryItem* wxitem = new wxWebViewHistoryItem(
webkit_back_forward_list_item_get_uri(gtkitem),
webkit_back_forward_list_item_get_title(gtkitem));
wxitem->m_histItem = gtkitem;
wxSharedPtr<wxWebViewHistoryItem> item(wxitem);
backhist.push_back(item);
}
return backhist;
}
wxVector<wxSharedPtr<wxWebViewHistoryItem> > wxWebViewWebKit::GetForwardHistory()
{
wxVector<wxSharedPtr<wxWebViewHistoryItem> > forwardhist;
WebKitBackForwardList* history =
webkit_web_view_get_back_forward_list(m_web_view);
GList* list = webkit_back_forward_list_get_forward_list(history);
for(guint i = 0; i < g_list_length(list); i++)
{
WebKitBackForwardListItem* gtkitem = (WebKitBackForwardListItem*)g_list_nth_data(list, i);
wxWebViewHistoryItem* wxitem = new wxWebViewHistoryItem(
webkit_back_forward_list_item_get_uri(gtkitem),
webkit_back_forward_list_item_get_title(gtkitem));
wxitem->m_histItem = gtkitem;
wxSharedPtr<wxWebViewHistoryItem> item(wxitem);
forwardhist.push_back(item);
}
return forwardhist;
}
void wxWebViewWebKit::LoadHistoryItem(wxSharedPtr<wxWebViewHistoryItem> item)
{
WebKitBackForwardListItem* gtkitem = (WebKitBackForwardListItem*)item->m_histItem;
if(gtkitem)
{
webkit_web_view_go_to_back_forward_list_item(m_web_view,
WEBKIT_BACK_FORWARD_LIST_ITEM(gtkitem));
}
}
extern "C" {
static void wxgtk_can_execute_editing_command_cb(GObject*,
GAsyncResult *res,
void* user_data)
{
GAsyncResult** res_out = static_cast<GAsyncResult**>(user_data);
g_object_ref(res);
*res_out = res;
}
}
bool wxWebViewWebKit::CanExecuteEditingCommand(const gchar* command) const
{
GAsyncResult *result = NULL;
webkit_web_view_can_execute_editing_command(m_web_view,
command,
NULL,
wxgtk_can_execute_editing_command_cb,
&result);
GMainContext *main_context = g_main_context_get_thread_default();
while (!result)
{
g_main_context_iteration(main_context, TRUE);
}
gboolean can_execute = webkit_web_view_can_execute_editing_command_finish(m_web_view,
result,
NULL);
g_object_unref(result);
return can_execute != 0;
}
bool wxWebViewWebKit::CanCut() const
{
return CanExecuteEditingCommand(WEBKIT_EDITING_COMMAND_CUT);
}
bool wxWebViewWebKit::CanCopy() const
{
return CanExecuteEditingCommand(WEBKIT_EDITING_COMMAND_COPY);
}
bool wxWebViewWebKit::CanPaste() const
{
return CanExecuteEditingCommand(WEBKIT_EDITING_COMMAND_PASTE);
}
void wxWebViewWebKit::Cut()
{
webkit_web_view_execute_editing_command(m_web_view,
WEBKIT_EDITING_COMMAND_CUT);
}
void wxWebViewWebKit::Copy()
{
webkit_web_view_execute_editing_command(m_web_view,
WEBKIT_EDITING_COMMAND_COPY);
}
void wxWebViewWebKit::Paste()
{
webkit_web_view_execute_editing_command(m_web_view,
WEBKIT_EDITING_COMMAND_PASTE);
}
bool wxWebViewWebKit::CanUndo() const
{
return CanExecuteEditingCommand(WEBKIT_EDITING_COMMAND_UNDO);
}
bool wxWebViewWebKit::CanRedo() const
{
return CanExecuteEditingCommand(WEBKIT_EDITING_COMMAND_REDO);
}
void wxWebViewWebKit::Undo()
{
webkit_web_view_execute_editing_command(m_web_view,
WEBKIT_EDITING_COMMAND_UNDO);
}
void wxWebViewWebKit::Redo()
{
webkit_web_view_execute_editing_command(m_web_view,
WEBKIT_EDITING_COMMAND_REDO);
}
wxString wxWebViewWebKit::GetCurrentURL() const
{
// 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(m_web_view));
}
wxString wxWebViewWebKit::GetCurrentTitle() const
{
return wxString::FromUTF8(webkit_web_view_get_title(m_web_view));
}
extern "C" {
static void wxgtk_web_resource_get_data_cb(GObject*,
GAsyncResult *res,
void* user_data)
{
GAsyncResult** res_out = static_cast<GAsyncResult**>(user_data);
g_object_ref(res);
*res_out = res;
}
}
wxString wxWebViewWebKit::GetPageSource() const
{
WebKitWebResource *resource = webkit_web_view_get_main_resource(m_web_view);
if (!resource)
{
return wxString();
}
GAsyncResult *result = NULL;
webkit_web_resource_get_data(resource, NULL,
wxgtk_web_resource_get_data_cb,
&result);
GMainContext *main_context = g_main_context_get_thread_default();
while (!result)
{
g_main_context_iteration(main_context, TRUE);
}
size_t length;
guchar *source = webkit_web_resource_get_data_finish(resource, result,
&length, NULL);
if (result)
{
g_object_unref(result);
}
if (source)
{
wxString wxs(source, wxConvUTF8, length);
free(source);
return wxs;
}
return wxString();
}
float wxWebViewWebKit::GetZoomFactor() const
{
return GetWebkitZoom();
}
void wxWebViewWebKit::SetZoomFactor(float zoom)
{
SetWebkitZoom(zoom);
}
void wxWebViewWebKit::SetZoomType(wxWebViewZoomType type)
{
WebKitSettings* settings = webkit_web_view_get_settings(m_web_view);
webkit_settings_set_zoom_text_only(settings,
type == wxWEBVIEW_ZOOM_TYPE_TEXT);
}
wxWebViewZoomType wxWebViewWebKit::GetZoomType() const
{
WebKitSettings* settings = webkit_web_view_get_settings(m_web_view);
gboolean tozoom = webkit_settings_get_zoom_text_only(settings);
if (tozoom)
return wxWEBVIEW_ZOOM_TYPE_TEXT;
else
return wxWEBVIEW_ZOOM_TYPE_LAYOUT;
}
bool wxWebViewWebKit::CanSetZoomType(wxWebViewZoomType) const
{
// this port supports all zoom types
return true;
}
void wxWebViewWebKit::DoSetPage(const wxString& html, const wxString& baseUri)
{
webkit_web_view_load_html(m_web_view,
html.mb_str(wxConvUTF8),
baseUri.mb_str(wxConvUTF8));
}
void wxWebViewWebKit::Print()
{
WebKitPrintOperation* printop = webkit_print_operation_new(m_web_view);
webkit_print_operation_run_dialog(printop, NULL);
g_object_unref(printop);
}
bool wxWebViewWebKit::IsBusy() const
{
return m_busy;
}
void wxWebViewWebKit::SetEditable(bool enable)
{
#if WEBKIT_CHECK_VERSION(2, 8, 0)
webkit_web_view_set_editable(m_web_view, enable);
#else
// Not supported in older versions.
wxUnusedVar(enable);
#endif
}
bool wxWebViewWebKit::IsEditable() const
{
#if WEBKIT_CHECK_VERSION(2, 8, 0)
gboolean editable;
g_object_get(m_web_view, "editable", &editable, NULL);
return editable != 0;
#else
return false;
#endif
}
void wxWebViewWebKit::DeleteSelection()
{
GDBusProxy *extension = GetExtensionProxy();
if (extension)
{
guint64 page_id = webkit_web_view_get_page_id(m_web_view);
GVariant *retval = g_dbus_proxy_call_sync(extension,
"DeleteSelection",
g_variant_new("(t)", page_id),
G_DBUS_CALL_FLAGS_NONE, -1,
NULL, NULL);
if (retval)
{
g_variant_unref(retval);
}
}
}
bool wxWebViewWebKit::HasSelection() const
{
GDBusProxy *extension = GetExtensionProxy();
if (extension)
{
guint64 page_id = webkit_web_view_get_page_id(m_web_view);
GVariant *retval = g_dbus_proxy_call_sync(extension,
"HasSelection",
g_variant_new("(t)", page_id),
G_DBUS_CALL_FLAGS_NONE, -1,
NULL, NULL);
if (retval)
{
gboolean has_selection = FALSE;
g_variant_get(retval, "(b)", &has_selection);
g_variant_unref(retval);
return has_selection != 0;
}
}
return false;
}
void wxWebViewWebKit::SelectAll()
{
webkit_web_view_execute_editing_command(m_web_view,
WEBKIT_EDITING_COMMAND_SELECT_ALL);
}
wxString wxWebViewWebKit::GetSelectedText() const
{
GDBusProxy *extension = GetExtensionProxy();
if (extension)
{
guint64 page_id = webkit_web_view_get_page_id(m_web_view);
GVariant *retval = g_dbus_proxy_call_sync(extension,
"GetSelectedText",
g_variant_new("(t)", page_id),
G_DBUS_CALL_FLAGS_NONE, -1,
NULL, NULL);
if (retval)
{
char *text;
g_variant_get(retval, "(s)", &text);
g_variant_unref(retval);
return wxString(text, wxConvUTF8);
}
}
return wxString();
}
wxString wxWebViewWebKit::GetSelectedSource() const
{
GDBusProxy *extension = GetExtensionProxy();
if (extension)
{
guint64 page_id = webkit_web_view_get_page_id(m_web_view);
GVariant *retval = g_dbus_proxy_call_sync(extension,
"GetSelectedSource",
g_variant_new("(t)", page_id),
G_DBUS_CALL_FLAGS_NONE, -1,
NULL, NULL);
if (retval)
{
char *source;
g_variant_get(retval, "(s)", &source);
g_variant_unref(retval);
return wxString(source, wxConvUTF8);
}
}
return wxString();
}
void wxWebViewWebKit::ClearSelection()
{
GDBusProxy *extension = GetExtensionProxy();
if (extension)
{
guint64 page_id = webkit_web_view_get_page_id(m_web_view);
GVariant *retval = g_dbus_proxy_call_sync(extension,
"ClearSelection",
g_variant_new("(t)", page_id),
G_DBUS_CALL_FLAGS_NONE, -1,
NULL, NULL);
if (retval)
{
g_variant_unref(retval);
}
}
}
wxString wxWebViewWebKit::GetPageText() const
{
GDBusProxy *extension = GetExtensionProxy();
if (extension)
{
guint64 page_id = webkit_web_view_get_page_id(m_web_view);
GVariant *retval = g_dbus_proxy_call_sync(extension,
"GetPageText",
g_variant_new("(t)", page_id),
G_DBUS_CALL_FLAGS_NONE, -1,
NULL, NULL);
if (retval)
{
char *text;
g_variant_get(retval, "(s)", &text);
g_variant_unref(retval);
return wxString(text, wxConvUTF8);
}
}
return wxString();
}
class wxWebKitRunScriptParams
{
public:
const wxWebViewWebKit* webKitCtrl;
void* clientData;
};
extern "C"
{
static void wxgtk_run_javascript_cb(GObject *,
GAsyncResult *res,
void *user_data)
{
wxWebKitRunScriptParams* params = static_cast<wxWebKitRunScriptParams*>(user_data);
params->webKitCtrl->ProcessJavaScriptResult(res, params);
}
} // extern "C"
void wxWebViewWebKit::ProcessJavaScriptResult(GAsyncResult *res, wxWebKitRunScriptParams* params) const
{
wxGtkError error;
wxWebKitJavascriptResult js_result
(
webkit_web_view_run_javascript_finish
(
m_web_view,
res,
error.Out()
)
);
if ( js_result )
{
wxString scriptResult;
if ( wxGetStringFromJSResult(js_result, &scriptResult) )
{
wxString scriptOutput;
bool success = wxJSScriptWrapper::ExtractOutput(scriptResult, &scriptOutput);
SendScriptResult(params->clientData, success, scriptOutput);
}
}
else
SendScriptResult(params->clientData, false, error.GetMessage());
delete params;
}
void wxWebViewWebKit::RunScriptAsync(const wxString& javascript, void* clientData) const
{
wxJSScriptWrapper wrapJS(javascript, wxJSScriptWrapper::JS_OUTPUT_STRING);
// Collect parameters for access from the callback
wxWebKitRunScriptParams* params = new wxWebKitRunScriptParams;
params->webKitCtrl = this;
params->clientData = clientData;
webkit_web_view_run_javascript(m_web_view,
wrapJS.GetWrappedCode().utf8_str(),
NULL,
wxgtk_run_javascript_cb,
params);
}
bool wxWebViewWebKit::AddScriptMessageHandler(const wxString& name)
{
if (!m_web_view)
return false;
WebKitUserContentManager *ucm = webkit_web_view_get_user_content_manager(m_web_view);
g_signal_connect(ucm, wxString::Format("script-message-received::%s", name).utf8_str(),
G_CALLBACK(wxgtk_webview_webkit_script_message_received), this);
bool res = webkit_user_content_manager_register_script_message_handler(ucm, name.utf8_str());
if (res)
{
// Make webkit message handler available under common name
wxString js = wxString::Format("window.%s = window.webkit.messageHandlers.%s;",
name, name);
AddUserScript(js);
RunScript(js);
}
return res;
}
bool wxWebViewWebKit::RemoveScriptMessageHandler(const wxString& name)
{
WebKitUserContentManager *ucm = webkit_web_view_get_user_content_manager(m_web_view);
webkit_user_content_manager_unregister_script_message_handler(ucm, name.utf8_str());
return true;
}
bool wxWebViewWebKit::AddUserScript(const wxString& javascript,
wxWebViewUserScriptInjectionTime injectionTime)
{
WebKitUserScript* userScript = webkit_user_script_new(
javascript.utf8_str(),
WEBKIT_USER_CONTENT_INJECT_ALL_FRAMES,
(injectionTime == wxWEBVIEW_INJECT_AT_DOCUMENT_START) ?
WEBKIT_USER_SCRIPT_INJECT_AT_DOCUMENT_START : WEBKIT_USER_SCRIPT_INJECT_AT_DOCUMENT_END,
NULL, NULL
);
WebKitUserContentManager *ucm = webkit_web_view_get_user_content_manager(m_web_view);
webkit_user_content_manager_add_script(ucm, userScript);
webkit_user_script_unref(userScript);
return true;
}
void wxWebViewWebKit::RemoveAllUserScripts()
{
WebKitUserContentManager *ucm = webkit_web_view_get_user_content_manager(m_web_view);
webkit_user_content_manager_remove_all_scripts(ucm);
}
void wxWebViewWebKit::RegisterHandler(wxSharedPtr<wxWebViewHandler> handler)
{
m_handlerList.push_back(handler);
WebKitWebContext* context = webkit_web_context_get_default();
webkit_web_context_register_uri_scheme(context, handler->GetName().utf8_str(),
(WebKitURISchemeRequestCallback)wxgtk_webview_webkit_uri_scheme_request_cb,
this, NULL);
}
void wxWebViewWebKit::EnableContextMenu(bool enable)
{
wxWebView::EnableContextMenu(enable);
}
long wxWebViewWebKit::Find(const wxString& text, int flags)
{
WebKitFindController* findctrl = webkit_web_view_get_find_controller(m_web_view);
bool newSearch = false;
if(text != m_findText ||
(flags & wxWEBVIEW_FIND_MATCH_CASE) != (m_findFlags & wxWEBVIEW_FIND_MATCH_CASE))
{
newSearch = true;
//If it is a new search we need to clear existing highlights
webkit_find_controller_search_finish(findctrl);
}
m_findFlags = flags;
m_findText = text;
//If the search string is empty then we clear any selection and highlight
if(text.empty())
{
webkit_find_controller_search_finish(findctrl);
ClearSelection();
return wxNOT_FOUND;
}
bool wrap = false, forward = true;
guint32 options = WEBKIT_FIND_OPTIONS_NONE;
if(flags & wxWEBVIEW_FIND_WRAP)
{
wrap = true;
options |= WEBKIT_FIND_OPTIONS_WRAP_AROUND;
}
if(!(flags & wxWEBVIEW_FIND_MATCH_CASE))
{
options |= WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE;
}
if(flags & wxWEBVIEW_FIND_BACKWARDS)
{
forward = false;
options |= WEBKIT_FIND_OPTIONS_BACKWARDS;
}
if(newSearch)
{
//Initially we count the matches to know how many we have
m_findCount = -1;
webkit_find_controller_count_matches(findctrl,
wxGTK_CONV(text),
options,
G_MAXUINT);
GMainContext *main_context = g_main_context_get_thread_default();
while (m_findCount == -1)
{
g_main_context_iteration(main_context, TRUE);
}
//Highlight them if needed
if(flags & wxWEBVIEW_FIND_HIGHLIGHT_RESULT)
{
webkit_find_controller_search(findctrl,
wxGTK_CONV(text),
options,
G_MAXUINT);
}
//In this case we return early to match IE behaviour
m_findPosition = -1;
return m_findCount;
}
else
{
if(forward)
m_findPosition++;
else
m_findPosition--;
if(m_findPosition < 0)
m_findPosition += m_findCount;
if(m_findPosition > m_findCount)
m_findPosition -= m_findCount;
}
if(forward)
{
webkit_find_controller_search_next(findctrl);
if(m_findPosition == m_findCount && !wrap)
{
return wxNOT_FOUND;
}
}
else
{
webkit_find_controller_search_previous(findctrl);
if(m_findPosition == -1 && !wrap)
{
return wxNOT_FOUND;
}
}
return newSearch ? m_findCount : m_findPosition;
}
void wxWebViewWebKit::FindClear()
{
m_findCount = 0;
m_findFlags = 0;
m_findText.clear();
m_findPosition = -1;
}
// static
wxVisualAttributes
wxWebViewWebKit::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
{
return GetDefaultAttributesFromGTKWidget(webkit_web_view_new());
}
void wxWebViewWebKit::SetupWebExtensionServer()
{
char *address = g_strdup_printf("unix:tmpdir=%s", g_get_tmp_dir());
char *guid = g_dbus_generate_guid();
GDBusAuthObserver *observer = g_dbus_auth_observer_new();
GError *error = NULL;
g_signal_connect(observer, "authorize-authenticated-peer",
G_CALLBACK(wxgtk_authorize_authenticated_peer_cb), this);
m_dbusServer = g_dbus_server_new_sync(address,
G_DBUS_SERVER_FLAGS_NONE,
guid,
observer,
NULL,
&error);
if (error)
{
g_warning("Failed to start web extension server on %s: %s", address, error->message);
g_error_free(error);
}
else
{
g_signal_connect(m_dbusServer, "new-connection",
G_CALLBACK(wxgtk_new_connection_cb), &m_extension);
g_dbus_server_start(m_dbusServer);
}
g_free(address);
g_free(guid);
g_object_unref(observer);
}
GDBusProxy *wxWebViewWebKit::GetExtensionProxy() const
{
if (!m_extension)
{
g_warning("Web extension not found in \"%s\", "
"some wxWebView functionality will be not available",
(const char*)GetStandardWebExtensionsDir().utf8_str());
}
return m_extension;
}
#endif // wxUSE_WEBVIEW && wxUSE_WEBVIEW_WEBKIT2
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