Index: chrome/browser/resources/pdf/elements/viewer-toolbar/viewer-toolbar.js |
diff --git a/chrome/browser/resources/pdf/elements/viewer-toolbar/viewer-toolbar.js b/chrome/browser/resources/pdf/elements/viewer-toolbar/viewer-toolbar.js |
new file mode 100644 |
index 0000000000000000000000000000000000000000..c28b45b670b32796a0979c2ffe1a35d313bdd238 |
--- /dev/null |
+++ b/chrome/browser/resources/pdf/elements/viewer-toolbar/viewer-toolbar.js |
@@ -0,0 +1,57 @@ |
+// Copyright 2014 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+Polymer('viewer-toolbar', { |
+ fadingIn: false, |
+ timerId_: undefined, |
+ inInitialFadeIn_: false, |
+ ready: function() { |
+ this.mousemoveCallback = function(e) { |
+ var rect = this.getBoundingClientRect(); |
+ if (e.clientX >= rect.left && e.clientX <= rect.right && |
+ e.clientY >= rect.top && e.clientY <= rect.bottom) { |
+ this.fadingIn = true; |
+ // If we hover over the toolbar, cancel the initial fade in. |
+ if (this.inInitialFadeIn_) |
+ this.inInitialFadeIn_ = false; |
+ } else { |
+ // Initially we want to keep the toolbar up for a longer period. |
+ if (!this.inInitialFadeIn_) |
+ this.fadingIn = false; |
+ } |
+ }.bind(this); |
+ }, |
+ attached: function() { |
+ this.parentNode.addEventListener('mousemove', this.mousemoveCallback); |
+ }, |
+ detached: function() { |
+ this.parentNode.removeEventListener('mousemove', this.mousemoveCallback); |
+ }, |
+ initialFadeIn: function() { |
+ this.inInitialFadeIn_ = true; |
+ this.fadeIn(); |
+ this.fadeOutAfterDelay(6000); |
+ }, |
+ fadingInChanged: function() { |
+ if (this.fadingIn) { |
+ this.fadeIn(); |
+ } else { |
+ if (this.timerId_ === undefined) |
+ this.fadeOutAfterDelay(3000); |
+ } |
+ }, |
+ fadeIn: function() { |
+ this.style.opacity = 1; |
+ clearTimeout(this.timerId_); |
+ this.timerId_ = undefined; |
+ }, |
+ fadeOutAfterDelay: function(delay) { |
+ this.timerId_ = setTimeout( |
+ function() { |
+ this.style.opacity = 0; |
+ this.timerId_ = undefined; |
+ this.inInitialFadeIn_ = false; |
+ }.bind(this), delay); |
+ } |
+}); |