Bug 56295 – Junk Characters coming on displaying webpage

• Status: RESOLVED
• Resolution: WONTFIX
• Component: Page Loading

[monil]

Hi,
Iam trying to use gtk based webkit launcher to see the webpages.
 
In my program iam calling gtk_init, gtk_main, creation of window and display of page, quiting gtk_main  all in different threads.
Now if i open the webpage first time -> it opens fine.
then iam quit gtk and relaunching it . This time no webpage is coming lot of junk characters are coming.
 
Any idea what is happening here.
snipet of code:


static GtkWidget*
create_browser () //cretion of window
{
    GtkWidget* scrolled_window = gtk_scrolled_window_new (NULL, NULL);
    gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
    gtk_container_add (GTK_CONTAINER (scrolled_window), GTK_WIDGET (web_view));
    return scrolled_window;
}
void *thread_1(void *param) //gtk _init
{
    if (!g_thread_supported ())
        g_thread_init (NULL);
    gdk_threads_init();
        gdk_threads_enter();
    gtk_init (NULL,NULL);//&argc, &argv);
    gdk_threads_leave();
}
void *thread_2(void *param)  //gtk main
{
    web_view = WEBKIT_WEB_VIEW (webkit_web_view_new ());
        GdkDisplay *display;
    gdk_threads_enter();
        display=gdk_display_get_default();
    gtk_main ();
        gdk_display_close(display);
    gdk_threads_leave();
}
void *thread_3(void *param) //creating window and display webview
{
        gchar* uri;
    gdk_threads_enter();
    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    gtk_window_set_default_size (GTK_WINDOW (window), 1280,720);//800, 600);
    gtk_container_add (GTK_CONTAINER (window),GTK_WIDGET (web_view));
        if (i==0)
        {
            uri = (gchar*)("http://www.naver.com/");
                i++;
        }
        else
        {
            uri = (gchar*)("http://www.google.com/");
                i--;
        }
    webkit_web_view_load_uri (web_view, uri);
    gtk_widget_show_all (window);
    gdk_threads_leave();
    printf("\nLEAVING THREAD 3\n");
}
//void *thread_4(void *param)
static gboolean  thread_4(void *param) //calling gtk_main_quit
{
    gdk_threads_enter();
        webkit_web_view_stop_loading(web_view);
        web_view=NULL;
        sleep(2);
        gtk_widget_hide(window);
        sleep(2);
       gtk_widget_destroy(window);
        window=NULL;
        gtk_main_quit();
    gdk_threads_leave();
        return FALSE;
}
int test_gtkapp_quit(void) ///calling destroy 
{
//    pthread_create(&mythread_4,NULL,thread_4,NULL);
        g_timeout_add(50,thread_4, NULL);
}

 
int main (int argc, char ** argv) //Main function
{
    pthread_create(&mythread_1,NULL,thread_1,NULL);
    sleep(2);
    pthread_create(&mythread_3,NULL,thread_2,NULL);
    sleep(3);
    pthread_create(&mythread_2,NULL,thread_3,NULL);
    return 0;
}

[Alexey Proskuryakov]

WebKit can only be used from main thread.

[Martin Robinson]

Likely due to the non-main thread usage, so closing as invalid.