Add examples of stateful actions

#77 Fixes #68 and #44
sebp · Mar 3, 2016 · b13d270 · b13d270
1 parent 402f670
commit b13d270
Showing 1 changed file with 64 additions and 2 deletions.
diff --git a/examples/application_example.py b/examples/application_example.py
@@ -9,6 +9,30 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <menu id="app-menu">
+    <section>
+      <attribute name="label" translatable="yes">Change label</attribute>
+      <item>
+        <attribute name="action">win.change_label</attribute>
+        <attribute name="target">String 1</attribute>
+        <attribute name="label" translatable="yes">String 1</attribute>
+      </item>
+      <item>
+        <attribute name="action">win.change_label</attribute>
+        <attribute name="target">String 2</attribute>
+        <attribute name="label" translatable="yes">String 2</attribute>
+      </item>
+      <item>
+        <attribute name="action">win.change_label</attribute>
+        <attribute name="target">String 3</attribute>
+        <attribute name="label" translatable="yes">String 3</attribute>
+      </item>
+    </section>
+    <section>
+      <item>
+        <attribute name="action">win.maximize</attribute>
+        <attribute name="label" translatable="yes">Maximize</attribute>
+      </item>
+    </section>
     <section>
       <item>
         <attribute name="action">app.about</attribute>
@@ -24,6 +48,44 @@
 </interface>
 """
 
+class AppWindow(Gtk.ApplicationWindow):
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+        # This will be in the windows group and have the "win" prefix
+        max_action = Gio.SimpleAction.new_stateful("maximize", None,
+                                           GLib.Variant.new_boolean(False))
+        max_action.connect("change-state", self.on_maximize_toggle)
+        self.add_action(max_action)
+
+        # Keep it in sync with the actual state
+        self.connect("notify::is-maximized",
+                            lambda obj, pspec: max_action.set_state(
+                                               GLib.Variant.new_boolean(obj.props.is_maximized)))
+
+        lbl_variant = GLib.Variant.new_string("String 1")
+        lbl_action = Gio.SimpleAction.new_stateful("change_label", lbl_variant.get_type(),
+                                               lbl_variant)
+        lbl_action.connect("change-state", self.on_change_label_state)
+        self.add_action(lbl_action)
+
+        self.label = Gtk.Label(label=lbl_variant.get_string(),
+                               margin=30)
+        self.add(self.label)
+        self.label.show()
+
+    def on_change_label_state(self, action, value):
+        action.set_state(value)
+        self.label.set_text(value.get_string())
+
+    def on_maximize_toggle(self, action, value):
+        action.set_state(value)
+        if value.get_boolean():
+            self.maximize()
+        else:
+            self.unmaximize()
+
 class Application(Gtk.Application):
 
     def __init__(self, *args, **kwargs):
@@ -54,8 +116,8 @@ def do_activate(self):
         if not self.window:
             # Windows are associated with the application
             # when the last one is closed the application shuts down
-            self.window = Gtk.ApplicationWindow(application=self,
-                                                title="Main Window")
+            self.window = AppWindow(application=self, title="Main Window")
+
         self.window.present()
 
     def do_command_line(self, command_line):