[gtk/modelbutton-tooltip: 2/2] modelbutton: Set up tooltips

[Matthias Clasen <matthiasc src gnome org>]

commit 55ccaf9df9af4322266fa79cfad144575c16f23d
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Oct 18 22:35:28 2022 -0400

    modelbutton: Set up tooltips
    
    Use the text of iconic model buttons as tooltip.
    
    Fixes: #5220

 gtk/gtkmodelbutton.c | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkmodelbutton.c b/gtk/gtkmodelbutton.c
index c24115dd1a..c6565af843 100644
--- a/gtk/gtkmodelbutton.c
+++ b/gtk/gtkmodelbutton.c
@@ -640,6 +640,22 @@ update_visibility (GtkModelButton *self)
     }
 }
 
+static void
+update_tooltip (GtkModelButton *self)
+{
+  if (self->iconic)
+    {
+      if (gtk_label_get_use_markup (GTK_LABEL (self->label)))
+        gtk_widget_set_tooltip_markup (GTK_WIDGET (self), gtk_label_get_text (GTK_LABEL (self->label)));
+      else
+        gtk_widget_set_tooltip_text (GTK_WIDGET (self), gtk_label_get_text (GTK_LABEL (self->label)));
+    }
+  else
+    {
+      gtk_widget_set_tooltip_text (GTK_WIDGET (self), NULL);
+    }
+}
+
 static void
 gtk_model_button_set_icon (GtkModelButton *self,
                            GIcon          *icon)
@@ -662,6 +678,8 @@ gtk_model_button_set_icon (GtkModelButton *self,
     }
 
   update_visibility (self);
+  update_tooltip (self);
+
   g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_ICON]);
 }
 
@@ -669,9 +687,9 @@ static void
 gtk_model_button_set_text (GtkModelButton *button,
                            const char     *text)
 {
-  gtk_label_set_text_with_mnemonic (GTK_LABEL (button->label),
-                                    text ? text : "");
+  gtk_label_set_text_with_mnemonic (GTK_LABEL (button->label), text ? text : "");
   update_visibility (button);
+  update_tooltip (button);
 
   gtk_accessible_update_relation (GTK_ACCESSIBLE (button),
                                   GTK_ACCESSIBLE_RELATION_LABELLED_BY, button->label, NULL,
@@ -690,6 +708,8 @@ gtk_model_button_set_use_markup (GtkModelButton *button,
 
   gtk_label_set_use_markup (GTK_LABEL (button->label), use_markup);
   update_visibility (button);
+  update_tooltip (button);
+
   g_object_notify_by_pspec (G_OBJECT (button), properties[PROP_USE_MARKUP]);
 }
 
@@ -769,6 +789,7 @@ gtk_model_button_set_iconic (GtkModelButton *self,
 
   update_node_name (self);
   update_visibility (self);
+  update_tooltip (self);
   g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_ICONIC]);
 }