[gnome-shell] screenshot: Immediately show the flash spot

[Jasper St. Pierre <jstpierre src gnome org>]

commit 90fae00aa6c0d13db995453dbd6b4bcf483f8f9c
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Mon Jan 14 17:51:36 2013 -0500

    screenshot: Immediately show the flash spot
    
    The "flash" effect looks awkward when it fades in and out. Real
    camera have an immediate flash of light, which then seems to fade
    out as our eyes readjust the rapid change in lighting.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=691875

 js/ui/screenshot.js |   17 ++++-------------
 1 files changed, 4 insertions(+), 13 deletions(-)
---
diff --git a/js/ui/screenshot.js b/js/ui/screenshot.js
index 12cf186..5537bf1 100644
--- a/js/ui/screenshot.js
+++ b/js/ui/screenshot.js
@@ -242,7 +242,7 @@ const SelectArea = new Lang.Class({
 });
 Signals.addSignalMethods(SelectArea.prototype);
 
-const FLASHSPOT_ANIMATION_TIME = 0.25; // seconds
+const FLASHSPOT_ANIMATION_OUT_TIME = 0.5; // seconds
 
 const Flashspot = new Lang.Class({
     Name: 'Flashspot',
@@ -258,21 +258,12 @@ const Flashspot = new Lang.Class({
     },
 
     fire: function() {
-        this.actor.opacity = 0;
-        Tweener.addTween(this.actor,
-                         { opacity: 255,
-                           time: FLASHSPOT_ANIMATION_TIME,
-                           transition: 'linear',
-                           onComplete: Lang.bind(this, this._onFireShowComplete)
-                         });
         this.actor.show();
-    },
-
-    _onFireShowComplete: function() {
+        this.actor.opacity = 255;
         Tweener.addTween(this.actor,
                          { opacity: 0,
-                           time: FLASHSPOT_ANIMATION_TIME,
-                           transition: 'linear',
+                           time: FLASHSPOT_ANIMATION_OUT_TIME,
+                           transition: 'easeOutQuad',
                            onComplete: Lang.bind(this, function() {
                                this.destroy();
                            })