[gnome-control-center/gbsneto/search-applications: 10/10] panel-list: Simplify placeholder widget setup

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 476ea8f55094eac8d21656188a13c3f3c723a461
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Fri Mar 29 20:02:22 2019 -0300

    panel-list: Simplify placeholder widget setup
    
    I just learned that we can use <child type="placeholder"> and
    avoid C code to do that. Simplify CcPanelList as well.

 shell/cc-panel-list.c  |  5 ---
 shell/cc-panel-list.ui | 89 ++++++++++++++++++++++++++------------------------
 2 files changed, 46 insertions(+), 48 deletions(-)
---
diff --git a/shell/cc-panel-list.c b/shell/cc-panel-list.c
index 5bdc4c899..67a0ac77f 100644
--- a/shell/cc-panel-list.c
+++ b/shell/cc-panel-list.c
@@ -55,8 +55,6 @@ struct _CcPanelList
   GtkListBoxRow      *details_row;
   GtkListBoxRow      *devices_row;
 
-  GtkWidget          *empty_search_placeholder;
-
   gchar              *current_panel_id;
   gchar              *search_query;
 
@@ -827,7 +825,6 @@ cc_panel_list_class_init (CcPanelListClass *klass)
   gtk_widget_class_bind_template_child (widget_class, CcPanelList, details_row);
   gtk_widget_class_bind_template_child (widget_class, CcPanelList, devices_listbox);
   gtk_widget_class_bind_template_child (widget_class, CcPanelList, devices_row);
-  gtk_widget_class_bind_template_child (widget_class, CcPanelList, empty_search_placeholder);
   gtk_widget_class_bind_template_child (widget_class, CcPanelList, main_listbox);
   gtk_widget_class_bind_template_child (widget_class, CcPanelList, search_listbox);
 
@@ -874,8 +871,6 @@ cc_panel_list_init (CcPanelList *self)
                                 filter_func,
                                 self,
                                 NULL);
-
-  gtk_list_box_set_placeholder (GTK_LIST_BOX (self->search_listbox), self->empty_search_placeholder);
 }
 
 GtkWidget*
diff --git a/shell/cc-panel-list.ui b/shell/cc-panel-list.ui
index 3064a179e..32066fb93 100644
--- a/shell/cc-panel-list.ui
+++ b/shell/cc-panel-list.ui
@@ -160,6 +160,52 @@
         <property name="visible">True</property>
         <property name="can_focus">False</property>
         <signal name="row-activated" handler="search_row_activated_cb" object="CcPanelList" swapped="no" />
+
+        <!-- Placeholder -->
+        <child type="placeholder">
+          <object class="GtkBox" id="empty_search_placeholder">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="halign">center</property>
+            <property name="valign">center</property>
+            <property name="expand">True</property>
+            <property name="border_width">18</property>
+            <property name="orientation">vertical</property>
+            <property name="spacing">6</property>
+            <child>
+              <object class="GtkImage">
+                <property name="visible">True</property>
+                <property name="can_focus">False</property>
+                <property name="pixel_size">64</property>
+                <property name="icon_name">edit-find-symbolic</property>
+                <style>
+                  <class name="dim-label"/>
+                </style>
+              </object>
+            </child>
+            <child>
+              <object class="GtkLabel">
+                <property name="visible">True</property>
+                <property name="can_focus">False</property>
+                <property name="label" translatable="yes">No results found</property>
+                <attributes>
+                  <attribute name="weight" value="bold"/>
+                  <attribute name="scale" value="1.44"/>
+                </attributes>
+              </object>
+            </child>
+            <child>
+              <object class="GtkLabel">
+                <property name="visible">True</property>
+                <property name="can_focus">False</property>
+                <property name="label" translatable="yes">Try a different search</property>
+                <style>
+                  <class name="dim-label"/>
+                </style>
+              </object>
+            </child>
+          </object>
+        </child>
       </object>
       <packing>
         <property name="name">search</property>
@@ -167,47 +213,4 @@
       </packing>
     </child>
   </template>
-  <object class="GtkBox" id="empty_search_placeholder">
-    <property name="visible">True</property>
-    <property name="can_focus">False</property>
-    <property name="halign">center</property>
-    <property name="valign">center</property>
-    <property name="hexpand">True</property>
-    <property name="vexpand">True</property>
-    <property name="border_width">18</property>
-    <property name="orientation">vertical</property>
-    <property name="spacing">6</property>
-    <child>
-      <object class="GtkImage">
-        <property name="visible">True</property>
-        <property name="can_focus">False</property>
-        <property name="pixel_size">64</property>
-        <property name="icon_name">edit-find-symbolic</property>
-        <style>
-          <class name="dim-label"/>
-        </style>
-      </object>
-    </child>
-    <child>
-      <object class="GtkLabel">
-        <property name="visible">True</property>
-        <property name="can_focus">False</property>
-        <property name="label" translatable="yes">No results found</property>
-        <attributes>
-          <attribute name="weight" value="bold"/>
-          <attribute name="scale" value="1.44"/>
-        </attributes>
-      </object>
-    </child>
-    <child>
-      <object class="GtkLabel">
-        <property name="visible">True</property>
-        <property name="can_focus">False</property>
-        <property name="label" translatable="yes">Try a different search</property>
-        <style>
-          <class name="dim-label"/>
-        </style>
-      </object>
-    </child>
-  </object>
 </interface>