[ghex/gtk4-port: 60/91] Add close-tab keyboard shortcut.

[Logan Rathbone <larathbone src gnome org>]

commit 7fd9cfb33209af74a25ef69344d762f6f7fa3041
Author: Logan Rathbone <poprocks gmail com>
Date:   Tue Jan 26 21:15:53 2021 -0500

    Add close-tab keyboard shortcut.

 src/ghex-application-window.c | 31 +++++++++++++++++++++++++++----
 1 file changed, 27 insertions(+), 4 deletions(-)
---
diff --git a/src/ghex-application-window.c b/src/ghex-application-window.c
index ed72472e..23fbbbcd 100644
--- a/src/ghex-application-window.c
+++ b/src/ghex-application-window.c
@@ -741,7 +741,24 @@ enable_main_actions (GHexApplicationWindow *self, gboolean enable)
        }
 }
 
+
 /* GHexApplicationWindow -- CALLBACKS */
+
+static gboolean
+close_tab_shortcut_cb (GtkWidget *widget,
+               GVariant *args,
+               gpointer user_data)
+{
+       GHexApplicationWindow *self = GHEX_APPLICATION_WINDOW(widget);
+       GHexNotebookTab *tab = ghex_application_window_get_current_tab (self);
+
+       g_return_val_if_fail (GHEX_IS_NOTEBOOK_TAB (tab), FALSE);
+
+       g_signal_emit_by_name (tab, "closed");
+
+       return TRUE;
+}
+
 static void
 ghex_application_window_file_saved_cb (HexDocument *doc,
                gpointer user_data)
@@ -781,6 +798,8 @@ tab_close_cb (GHexNotebookTab *tab,
        GHexApplicationWindow *self = GHEX_APPLICATION_WINDOW(user_data);
        HexDocument *doc;
 
+       g_debug ("%s: start", __func__);
+
        doc = gtk_hex_get_document (self->gh);
        g_return_if_fail (HEX_IS_DOCUMENT (doc));
 
@@ -1709,7 +1728,7 @@ ghex_notebook_tab_class_init (GHexNotebookTabClass *klass)
 
        notebook_signals[CLOSED] = g_signal_new_class_handler("closed",
                        G_OBJECT_CLASS_TYPE(object_class),
-                       G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+                       G_SIGNAL_RUN_FIRST,
                /* GCallback class_handler: */
                        NULL,
                /* no accumulator or accu_data */
@@ -2101,14 +2120,18 @@ ghex_application_window_class_init(GHexApplicationWindowClass *klass)
                        "ghex.jump",
                        NULL);  /* no args. */
 
+       /* Ctrl+W - close tab */
+       gtk_widget_class_add_binding (widget_class,
+                       GDK_KEY_w,
+                       GDK_CONTROL_MASK,
+                       close_tab_shortcut_cb,
+                       NULL);
+
        /* WIDGET TEMPLATE .UI */
 
        gtk_widget_class_set_template_from_resource (widget_class,
                                        "/org/gnome/ghex/ghex-application-window.ui");
 
-       /* 
-        * for i in `cat tmp.txt`; do echo "gtk_widget_class_bind_template_child (widget_class, 
GHexApplicationWindow, ${i});"; done
-        */
        gtk_widget_class_bind_template_child (widget_class, GHexApplicationWindow,
                        no_doc_label);
        gtk_widget_class_bind_template_child (widget_class, GHexApplicationWindow,