[ghex/gtk4-port: 30/91] Implement toggling insert mode

[Logan Rathbone <larathbone src gnome org>]

commit 3267ed1e95d1332574d722c452f30615542f8e5b
Author: Logan Rathbone <poprocks gmail com>
Date:   Wed Jan 13 00:25:49 2021 -0500

    Implement toggling insert mode

 src/ghex-application-window.c  | 38 +++++++++++++++++++++++++++++++++++++-
 src/ghex-application-window.ui |  3 +--
 2 files changed, 38 insertions(+), 3 deletions(-)
---
diff --git a/src/ghex-application-window.c b/src/ghex-application-window.c
index 26a11991..51aff460 100644
--- a/src/ghex-application-window.c
+++ b/src/ghex-application-window.c
@@ -9,6 +9,7 @@ struct _GHexApplicationWindow
 {
        GtkApplicationWindow parent_instance;
 
+       GtkHex *gh;
        HexDialog *dialog;
        GtkWidget *dialog_widget;
        guint statusbar_id;
@@ -22,6 +23,7 @@ struct _GHexApplicationWindow
        GtkWidget *child_box;
        GtkWidget *conversions_box;
        GtkWidget *pane_toggle_button;
+       GtkWidget *insert_mode_button;
        GtkWidget *statusbar;
        GtkWidget *scrollbar;
 };
@@ -49,7 +51,8 @@ cursor_moved_cb(GtkHex *gtkhex, gpointer user_data)
     hex_dialog_updateview (self->dialog, &val);
 }
 
-/* --- */
+
+/* ACTIONS */
 
 static void
 toggle_conversions (GtkWidget *widget,
@@ -71,6 +74,28 @@ toggle_conversions (GtkWidget *widget,
        }
 }
 
+static void
+toggle_insert_mode (GtkWidget *widget,
+               const char *action_name,
+               GVariant *parameter)
+{
+       GHexApplicationWindow *self = GHEX_APPLICATION_WINDOW(widget);
+
+       (void)parameter, (void)action_name;             /* unused */
+
+       /* this tests whether the button is pressed AFTER its state has changed. */
+       if (gtk_toggle_button_get_active (self->insert_mode_button)) {
+               g_debug("%s: TOGGLING INSERT MODE", __func__);
+               gtk_hex_set_insert_mode(self->gh, TRUE);
+       } else {
+               g_debug("%s: UNTOGGLING INSERT MODE", __func__);
+               gtk_hex_set_insert_mode(self->gh, FALSE);
+       }
+}
+
+/* --- */
+
+// DUMB TEST
 static void
 set_statusbar(GHexApplicationWindow *self, const char *str)
 {
@@ -152,9 +177,16 @@ ghex_application_window_class_init(GHexApplicationWindowClass *klass)
        gtk_widget_class_set_template_from_resource (widget_class,
                                        "/org/gnome/ghex/ghex-application-window.ui");
 
+       /* ACTIONS */
+
        gtk_widget_class_install_action (widget_class, "ghex.show-conversions",
                        NULL,   // GVariant string param_type
                        toggle_conversions);
+
+       gtk_widget_class_install_action (widget_class, "ghex.insert-mode",
+                       NULL,   // GVariant string param_type
+                       toggle_insert_mode);
+
        /* 
         * for i in `cat tmp.txt`; do echo "gtk_widget_class_bind_template_child (widget_class, 
GHexApplicationWindow, ${i});"; done
         */
@@ -164,6 +196,8 @@ ghex_application_window_class_init(GHexApplicationWindowClass *klass)
                        conversions_box);
        gtk_widget_class_bind_template_child (widget_class, GHexApplicationWindow,
                        pane_toggle_button);
+       gtk_widget_class_bind_template_child (widget_class, GHexApplicationWindow,
+                       insert_mode_button);
        gtk_widget_class_bind_template_child (widget_class, GHexApplicationWindow,
                        statusbar);
        gtk_widget_class_bind_template_child (widget_class, GHexApplicationWindow,
@@ -181,6 +215,8 @@ ghex_application_window_add_hex(GHexApplicationWindow *self, GtkHex *gh)
 {
        g_return_if_fail (GTK_IS_HEX(gh));
 
+       self->gh = gh;
+
        gtk_box_prepend (GTK_BOX(self->child_box), GTK_WIDGET(gh));
 
        /* Setup signals */
diff --git a/src/ghex-application-window.ui b/src/ghex-application-window.ui
index 4ff6772b..a6a4ecb7 100644
--- a/src/ghex-application-window.ui
+++ b/src/ghex-application-window.ui
@@ -183,11 +183,10 @@
                                                </child>
 
                                                <child> <!-- insert_mode_button -->
-                                                       <object class="GtkButton" id="insert_mode_button">
+                                                       <object class="GtkToggleButton" 
id="insert_mode_button">
                                                                <property name="valign">center</property>
                                                                <property name="halign">end</property>
                                                                <property 
name="icon-name">insert-text-symbolic</property>
-                                                               <property name="has-frame">false</property>
                                                                <property 
name="action-name">ghex.insert-mode</property>
                                                                <property name="tooltip-text" 
translatable="yes">Toggle insert mode (add data to file rather than replace existing data)</property>
                                                        </object>