save and restore main window size

Saves and restores the main window size in the GSettings.

The default size is updated to be 800x500. Gtk should automatically
resize it smaller if it doesn't fit on the screen.

Change-Id: Ia85f9fe870cf0695c5095cb138c2b8a61a8855a7
Tuleap: #1030

data/cx.ring.RingGnome.gschema.xml

@@ -34,5 +34,15 @@
         <default>true</default>
         <summary>Enable notifications for new chat messages.</summary>
     </key>
+    <key name="window-width" type="i">
+        <default>800</default>
+        <summary>Main window width.</summary>
+        <description>Main window width.</description>
+    </key>
+    <key name="window-height" type="i">
+        <default>500</default>
+        <summary>Main window height.</summary>
+        <description>Main window height.</description>
+    </key>
   </schema>
 </schemalist>

src/ringmainwindow.cpp

@@ -66,6 +66,7 @@
 #include "recentcontactsview.h"
 #include "chatview.h"
 #include "avatarmanipulation.h"
+#include "utils/files.h"
 
 static constexpr const char* CALL_VIEW_NAME             = "calls";
 static constexpr const char* CREATE_ACCOUNT_VIEW_NAME   = "wizard";
@@ -143,6 +144,8 @@ struct _RingMainWindowPrivate
 
     /* fullscreen */
     gboolean is_fullscreen;
+
+    GSettings *settings;
 };
 
 G_DEFINE_TYPE_WITH_PRIVATE(RingMainWindow, ring_main_window, GTK_TYPE_APPLICATION_WINDOW);
@@ -1078,12 +1081,30 @@ history_selection_changed(GtkTreeSelection *selection, RingMainWindow *self)
     selection_changed(self);
 }
 
+static gboolean
+window_size_changed(GtkWidget *win, GdkEventConfigure *event, gpointer)
+{
+    auto *priv = RING_MAIN_WINDOW_GET_PRIVATE(win);
+
+    g_settings_set_int(priv->settings, "window-width", event->width);
+    g_settings_set_int(priv->settings, "window-height", event->height);
+
+    return GDK_EVENT_PROPAGATE;
+}
+
 static void
 ring_main_window_init(RingMainWindow *win)
 {
     RingMainWindowPrivate *priv = RING_MAIN_WINDOW_GET_PRIVATE(win);
     gtk_widget_init_template(GTK_WIDGET(win));
 
+    /* bind to window size settings */
+    priv->settings = g_settings_new_full(get_ring_schema(), nullptr, nullptr);
+    auto width = g_settings_get_int(priv->settings, "window-width");
+    auto height = g_settings_get_int(priv->settings, "window-height");
+    gtk_window_set_default_size(GTK_WINDOW(win), width, height);
+    g_signal_connect(win, "configure-event", G_CALLBACK(window_size_changed), nullptr);
+
      /* set window icon */
     GError *error = NULL;
     GdkPixbuf* icon = gdk_pixbuf_new_from_resource("/cx/ring/RingGnome/ring-symbol-blue", &error);
@@ -1287,6 +1308,11 @@ ring_main_window_dispose(GObject *object)
 static void
 ring_main_window_finalize(GObject *object)
 {
+    RingMainWindow *self = RING_MAIN_WINDOW(object);
+    RingMainWindowPrivate *priv = RING_MAIN_WINDOW_GET_PRIVATE(self);
+
+    g_clear_object(&priv->settings);
+
     G_OBJECT_CLASS(ring_main_window_parent_class)->finalize(object);
 }
 

ui/ringmainwindow.ui

@@ -3,10 +3,7 @@
 <interface>
   <requires lib="gtk+" version="3.10"/>
   <template class="RingMainWindow" parent="GtkApplicationWindow">
-    <property name="can_focus">False</property>
     <property name="show_menubar">False</property>
-    <property name="default-width">700</property>
-    <property name="default-height">450</property>
     <!-- header definition -->
     <child type="titlebar">
       <object class="GtkHeaderBar" id="header">