[gnome-calculator/wip/glade] Migrate HistoryView to use GtkBuilder templates

[Alberto Ruiz <aruiz src gnome org>]

commit 483257a493c495218a22c77eb0579539533c60d2
Author: Alberto Ruiz <aruiz gnome org>
Date:   Sat Jan 16 21:43:19 2016 +0000

    Migrate HistoryView to use GtkBuilder templates

 data/gnome-calculator.gresource.xml |    1 +
 data/history-view.ui                |   30 ++++++++++++++++++++++++++++++
 src/math-display.vala               |    3 ++-
 src/math-history.vala               |   25 +++++--------------------
 4 files changed, 38 insertions(+), 21 deletions(-)
---
diff --git a/data/gnome-calculator.gresource.xml b/data/gnome-calculator.gresource.xml
index 30630d9..8d33a98 100644
--- a/data/gnome-calculator.gresource.xml
+++ b/data/gnome-calculator.gresource.xml
@@ -5,6 +5,7 @@
     <file preprocess="xml-stripblanks">buttons-basic.ui</file>
     <file preprocess="xml-stripblanks">buttons-financial.ui</file>
     <file preprocess="xml-stripblanks">buttons-programming.ui</file>
+    <file preprocess="xml-stripblanks">history-view.ui</file>
     <file preprocess="xml-stripblanks">math-converter.ui</file>
     <file preprocess="xml-stripblanks">math-window.ui</file>
     <file preprocess="xml-stripblanks">menu.ui</file>
diff --git a/data/history-view.ui b/data/history-view.ui
new file mode 100644
index 0000000..ce0dcd5
--- /dev/null
+++ b/data/history-view.ui
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Generated with glade 3.19.0 -->
+<interface>
+  <requires lib="gtk+" version="3.16"/>
+  <template class="HistoryView" parent="GtkScrolledWindow">
+    <property name="width_request">100</property>
+    <property name="height_request">100</property>
+    <property name="visible">True</property>
+    <property name="can_focus">True</property>
+    <property name="vexpand">True</property>
+    <property name="hscrollbar_policy">never</property>
+    <property name="shadow_type">etched-out</property>
+    <signal name="size-allocate" handler="scroll_bottom" swapped="no"/>
+    <child>
+      <object class="GtkViewport" id="viewport">
+        <property name="visible">True</property>
+        <property name="can_focus">False</property>
+        <child>
+          <object class="GtkListBox" id="listbox">
+            <property name="visible">True</property>
+            <property name="can_focus">False</property>
+            <property name="vexpand">True</property>
+            <property name="border_width">5</property>
+            <property name="selection_mode">none</property>
+          </object>
+        </child>
+      </object>
+    </child>
+  </template>
+</interface>
diff --git a/src/math-display.vala b/src/math-display.vala
index 1d22300..f2aae97 100644
--- a/src/math-display.vala
+++ b/src/math-display.vala
@@ -31,7 +31,8 @@ public class MathDisplay : Gtk.Viewport
         var main_box = new Gtk.Box (Gtk.Orientation.VERTICAL, 0);
         add (main_box);
 
-        history = new HistoryView (this);
+        history = new HistoryView ();
+        history.display = this;
         main_box.add (history);
         main_box.show_all ();
 
diff --git a/src/math-history.vala b/src/math-history.vala
index a9c1567..2433a74 100644
--- a/src/math-history.vala
+++ b/src/math-history.vala
@@ -8,33 +8,18 @@
  * license.
 */
 
+[GtkTemplate (ui = "/org/gnome/calculator/history-view.ui")]
 public class HistoryView : Gtk.ScrolledWindow
 {
     int no_ofitems = 0; /* No of entries in history-view listbox */
+
+    [GtkChild]
     Gtk.ListBox listbox;
 
     private MathDisplay _display;
-    public MathDisplay display { get { return _display; } }
-    /* Creates a History-View box */
-    public HistoryView (MathDisplay display)
-    {
-        _display = display;
-
-        listbox = new Gtk.ListBox ();
-        listbox.set_selection_mode (Gtk.SelectionMode.NONE);
-        listbox.set_border_width (5);
-        listbox.set_vexpand (true);
-        add (listbox);
-
-        set_shadow_type (Gtk.ShadowType.ETCHED_OUT);
-        set_policy (Gtk.PolicyType.NEVER, Gtk.PolicyType.AUTOMATIC);
-        set_placement (Gtk.CornerType.TOP_LEFT);
-        set_vexpand (true);
-
-        set_size_request (100, 100);
-        size_allocate.connect (scroll_bottom);
-    }
+    public MathDisplay display { set { _display = value; } get { return _display; } }
 
+    [GtkCallback]
     public void scroll_bottom ()
     {
         var adjustment = get_vadjustment ();