Re: popup menu problem

[Olivier Abad <oabad noos fr>]

Le mardi 26 septembre 2006 Ã 10:47 +0200, Olivier Abad a Ãcrit :
> Hi,
>
> I'm trying to implement a popup menu, but the items in my menu don't
> seem to receive the "activate" signal, so my handler is never called.
>
> However, it works if I connect the handler to "button-release-event"
> instead of "activate" for my menu items.
>
> Can someone tell me what I'm doing wrong ?
>
> I'm attaching the code I used (taken from gtk+ documentation).

It didn't work the first time. Here is the code :

#include <gtk/gtk.h>

static void
click(GtkWidget *menu, gpointer user_data)
{
    printf("click %d\n", (int)user_data);
}

static void
do_popup_menu (GtkWidget *my_widget, GdkEventButton *event)
{
    GtkWidget *menu, *item;
    int button, event_time;

    menu = gtk_menu_new ();
    g_signal_connect (G_OBJECT(menu), "deactivate", 
                      G_CALLBACK (gtk_widget_destroy), NULL);

    /* ... add menu items ... */
    item = gtk_menu_item_new_with_label("label1");
    gtk_widget_show(item);
    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
    g_signal_connect(item, "activate", G_CALLBACK(click), (gpointer)1);
    item = gtk_menu_item_new_with_label("label2");
    gtk_widget_show(item);
    gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
    g_signal_connect(item, "activate", G_CALLBACK(click), (gpointer)2);

    if (event)
    {
        button = event->button;
        event_time = event->time;
    }
    else
    {
        button = 0;
        event_time = gtk_get_current_event_time ();
    }

    gtk_menu_attach_to_widget (GTK_MENU (menu), my_widget, NULL);
    gtk_menu_popup (GTK_MENU (menu), NULL, NULL, NULL, NULL, 
                    button, event_time);
}

static gboolean
my_widget_button_press_event_handler (GtkWidget *widget, GdkEventButton
*event)
{
    /* Ignore double-clicks and triple-clicks */
    if (event->button == 3 && event->type == GDK_BUTTON_PRESS)
    {
        do_popup_menu (widget, event);
        return TRUE;
    }

    return FALSE;
}

static gboolean
my_widget_popup_menu_handler (GtkWidget *widget)
{
    do_popup_menu (widget, NULL);
    return TRUE;
}

int main(int argc, char *argv[])
{
    GtkWidget *window, *bt;

    gtk_init(&argc, &argv);

    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    g_signal_connect(window, "delete-event",
                     G_CALLBACK(gtk_main_quit), NULL);
    bt = gtk_button_new_with_label("click me");
    g_signal_connect(bt, "button-press-event",
                     G_CALLBACK(my_widget_button_press_event_handler),
NULL);
    g_signal_connect(bt, "popup-menu",
                     G_CALLBACK(my_widget_popup_menu_handler), NULL);
    gtk_container_add(GTK_CONTAINER(window), bt);
    gtk_widget_show(bt);
    gtk_widget_show(window);
    gtk_main();
}