[libhandy/wip/exalm/leaflet-transltions: 31/31] leaflet: Add 'progress' child property

[Alexander Mikhaylenko <alexm src gnome org>]

commit 189567ef4ebb8130ca0ac12cc87e6eb6be95f65b
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Fri Jul 31 22:57:00 2020 +0500

    leaflet: Add 'progress' child property
    
    Signed-off-by: Alexander Mikhaylenko <alexm gnome org>

 src/hdy-leaflet.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
---
diff --git a/src/hdy-leaflet.c b/src/hdy-leaflet.c
index 2e6e1761..e8e23945 100644
--- a/src/hdy-leaflet.c
+++ b/src/hdy-leaflet.c
@@ -87,6 +87,7 @@ enum {
   CHILD_PROP_NAME,
   CHILD_PROP_NAVIGATABLE,
   CHILD_PROP_VISIBLE,
+  CHILD_PROP_PROGRESS,
   LAST_CHILD_PROP,
 };
 
@@ -842,6 +843,10 @@ hdy_leaflet_get_child_property (GtkContainer *container,
     g_value_set_boolean (value, hdy_stackable_box_get_child_visible (HDY_GET_HELPER (container), widget));
     break;
 
+  case CHILD_PROP_PROGRESS:
+    g_value_set_double (value, hdy_stackable_box_get_child_progress (HDY_GET_HELPER (container), widget));
+    break;
+
   default:
     GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
     break;
@@ -1186,6 +1191,21 @@ hdy_leaflet_class_init (HdyLeafletClass *klass)
                           FALSE,
                           G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY);
 
+  /**
+   * HdyLeaflet:progress:
+   *
+   * The child transition animation progress value. 0 means invisible, 1 means
+   * fully visible.
+   *
+   * Since: 1.0
+   */
+  child_props[CHILD_PROP_PROGRESS] =
+    g_param_spec_double ("progress",
+                         _("Progress"),
+                         _("The child transition animation progress value"),
+                         0.0, 1.0, 1.0,
+                         G_PARAM_READABLE | G_PARAM_EXPLICIT_NOTIFY);
+
   gtk_container_class_install_child_properties (container_class, LAST_CHILD_PROP, child_props);
 
   gtk_widget_class_set_accessible_role (widget_class, ATK_ROLE_PANEL);
@@ -1234,6 +1254,15 @@ child_notify_visible_cb (HdyLeaflet *self,
                                        child_props[CHILD_PROP_VISIBLE]);
 }
 
+static void
+child_notify_progress_cb (HdyLeaflet *self,
+                          GtkWidget  *child)
+{
+  gtk_container_child_notify_by_pspec (GTK_CONTAINER (self),
+                                       child,
+                                       child_props[CHILD_PROP_PROGRESS]);
+}
+
 static void
 hdy_leaflet_init (HdyLeaflet *self)
 {
@@ -1260,6 +1289,7 @@ hdy_leaflet_init (HdyLeaflet *self)
   g_signal_connect_object (priv->box, "notify::can-swipe-forward", G_CALLBACK (notify_can_swipe_forward_cb), 
self, G_CONNECT_SWAPPED);
   g_signal_connect_object (priv->box, "notify::orientation", G_CALLBACK (notify_orientation_cb), self, 
G_CONNECT_SWAPPED);
   g_signal_connect_object (priv->box, "child-notify-visible", G_CALLBACK (child_notify_visible_cb), self, 
G_CONNECT_SWAPPED);
+  g_signal_connect_object (priv->box, "child-notify-progress", G_CALLBACK (child_notify_progress_cb), self, 
G_CONNECT_SWAPPED);
 }
 
 static void