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authorDavid Heinemeier Hansson <david@loudthinking.com>2005-03-28 10:22:44 +0000
committerDavid Heinemeier Hansson <david@loudthinking.com>2005-03-28 10:22:44 +0000
commitb0c0c9c2ef908606c03e03c7db422fde703eaa99 (patch)
tree9324906f08b575b0e1dd27f6c4694a22dd52849d /railties/html/javascripts
parentb14e5d8334ac5c46d69c1eee4fcb2f3a73da3e6a (diff)
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Added Effect.Fade which smoothly turns opacity from 100 to 0 and then hides the element #960 [thomas@fesch.at]
git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@1032 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
Diffstat (limited to 'railties/html/javascripts')
-rw-r--r--railties/html/javascripts/prototype.js30
1 files changed, 30 insertions, 0 deletions
diff --git a/railties/html/javascripts/prototype.js b/railties/html/javascripts/prototype.js
index 5042e3304d..2541866ccb 100644
--- a/railties/html/javascripts/prototype.js
+++ b/railties/html/javascripts/prototype.js
@@ -452,3 +452,33 @@ Effect.Highlight.prototype = {
element.style.backgroundColor = "#ffff" + current.toColorPart();
}
}
+
+
+Effect.Fade = Class.create();
+Effect.Fade.prototype = {
+ initialize: function(element) {
+ this.element = $(element);
+ this.start = 100;
+ this.finish = 0;
+ this.current = this.start;
+ this.fade();
+ },
+
+ fade: function() {
+ if (this.isFinished()) { this.element.style.display = 'none'; return; }
+ if (this.timer) clearTimeout(this.timer);
+ this.setOpacity(this.element, this.current);
+ this.current -= 10;
+ this.timer = setTimeout(this.fade.bind(this), 100);
+ },
+
+ isFinished: function() {
+ return this.current <= this.finish;
+ },
+
+ setOpacity: function(element, opacity) {
+ opacity = (opacity == 100) ? 99.999 : opacity;
+ element.style.filter = "alpha(opacity:"+opacity+")";
+ element.style.opacity = opacity/100;
+ }
+} \ No newline at end of file