[gnome-shell] tests: add animated box-shadow test to demo optimized painting

[Lionel Landwerlin <llandwerlin src gnome org>]

commit ffac5279a7271cacc7177db1c8d9f97e5dd38726
Author: Lionel Landwerlin <llandwerlin gmail com>
Date:   Fri Dec 21 12:08:48 2012 +0000

    tests: add animated box-shadow test to demo optimized painting

 tests/Makefile.am                        |    1 +
 tests/interactive/box-shadow-animated.js |   84 ++++++++++++++++++++++++++++++
 2 files changed, 85 insertions(+), 0 deletions(-)
---
diff --git a/tests/Makefile.am b/tests/Makefile.am
index e464634..74567f4 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -8,6 +8,7 @@ TEST_JS =                                       \
        interactive/border-radius.js            \
        interactive/border-width.js             \
        interactive/box-layout.js               \
+       interactive/box-shadow-animated.js      \
        interactive/box-shadows.js              \
        interactive/calendar.js                 \
        interactive/css-fonts.js                \
diff --git a/tests/interactive/box-shadow-animated.js b/tests/interactive/box-shadow-animated.js
new file mode 100644
index 0000000..2dc7cea
--- /dev/null
+++ b/tests/interactive/box-shadow-animated.js
@@ -0,0 +1,84 @@
+// -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
+
+const Clutter = imports.gi.Clutter;
+const St = imports.gi.St;
+const Mainloop = imports.mainloop;
+const GLib = imports.gi.GLib;
+const Lang = imports.lang;
+
+const UI = imports.testcommon.ui;
+
+const DELAY = 2000;
+
+function resize_animated(label) {
+    if (label.width == 100) {
+        label.save_easing_state();
+        label.set_easing_mode(Clutter.AnimationMode.EASE_OUT_QUAD);
+        label.set_easing_duration(DELAY - 50);
+        label.set_size(500, 500);
+        label.restore_easing_state();
+    } else {
+        label.save_easing_state();
+        label.set_easing_mode(Clutter.AnimationMode.EASE_OUT_QUAD);
+        label.set_easing_duration(DELAY - 50);
+        label.set_size(100, 100);
+        label.restore_easing_state();
+    }
+}
+
+function get_css_style(shadow_style)
+{
+    return 'border: 20px solid black;' +
+        'border-radius: 20px;' +
+        'background-color: white; ' +
+        'padding: 5px;' + shadow_style;
+}
+
+function test() {
+    let stage = new Clutter.Stage({ width: 1000, height: 600 });
+    UI.init(stage);
+
+    let iter = 0;
+    let shadowStyles = [ 'box-shadow: 3px 50px 0px 4px rgba(0,0,0,0.5);',
+                         'box-shadow: 3px 4px 10px 4px rgba(0,0,0,0.5);',
+                         'box-shadow: 0px 50px 0px 0px rgba(0,0,0,0.5);',
+                         'box-shadow: 100px 100px 20px 4px rgba(0,0,0,0.5);'];
+    let label1 = new St.Label({ style: get_css_style(shadowStyles[iter]),
+                                text: shadowStyles[iter],
+                                x: 20,
+                                y: 20,
+                                width: 100,
+                                height: 100
+                             });
+    stage.add_actor(label1);
+    let label2 = new St.Label({ style: get_css_style(shadowStyles[iter]),
+                                text: shadowStyles[iter],
+                                x: 500,
+                                y: 20,
+                                width: 100,
+                                height: 100
+                              });
+    stage.add_actor(label2);
+
+    resize_animated(label1);
+    resize_animated(label2);
+    Mainloop.timeout_add(DELAY, Lang.bind(this, function() {
+        log(label1 + label1.get_size());
+        resize_animated(label1);
+        resize_animated(label2);
+        return true;
+    }));
+
+    Mainloop.timeout_add(2 * DELAY, Lang.bind(this, function() {
+        iter += 1;
+        iter %= shadowStyles.length;
+        label1.set_style(get_css_style(shadowStyles[iter]));
+        label1.set_text(shadowStyles[iter]);
+        label2.set_style(get_css_style(shadowStyles[iter]));
+        label2.set_text(shadowStyles[iter]);
+        return true;
+    }));
+
+    UI.main(stage);
+}
+test();