Index: third_party/polymer/components-chromium/core-animated-pages/transitions/hero-transition.html |
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+<!-- |
+Copyright (c) 2014 The Polymer Project Authors. All rights reserved. |
+This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt |
+The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt |
+The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt |
+Code distributed by Google as part of the polymer project is also |
+subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt |
+--> |
+ |
+<link href="core-transition-pages.html" rel="import"> |
+ |
+<core-style id="hero-transition"> |
+ /* Hide heroes that are not currently transitioning */ |
+ polyfill-next-selector { content: ':host > [animate]:not(.core-selected) [hero]'; } |
+ ::content > [animate]:not(.core-selected) /deep/ [hero] { |
+ opacity: 0; |
+ } |
+ |
+ polyfill-next-selector { content: ':host > .core-selected[animate] [hero]'; } |
+ ::content > .core-selected[animate] /deep/ [hero] { |
+ opacity: 1; |
+ z-index: 10000; |
+ } |
+ |
+ polyfill-next-selector { content: ':host > * [hero-p]'; } |
+ ::content > * /deep/ [hero-p] { |
+ -webkit-transition: box-shadow 100ms ease-out; |
+ transition: box-shadow 100ms ease-out; |
+ } |
+ |
+ polyfill-next-selector { content: ':host > [animate] [hero-p]'; } |
+ ::content > [animate] /deep/ [hero-p] { |
+ box-shadow: none !important; |
+ } |
+</core-style> |
+ |
+ |
+<!-- |
+ |
+`hero-transition` transforms two elements in different pages such that they appear |
+to be shared across the pages. |
+ |
+Example: |
+ |
+ <core-animated-pages transition="hero-transition"> |
+ <section layout horizontal> |
+ <div id="div1" flex></div> |
+ <div id="div2" flex hero-id="shared" hero></div> |
+ </section> |
+ <section> |
+ <section layout horizontal> |
+ <div id="div3" flex hero-id="shared" hero></div> |
+ <div id="div4" flex></div> |
+ </section> |
+ </section> |
+ </core-animated-pages> |
+ |
+In the above example, the elements `#div2` and `#div3` shares the same `hero-id` |
+attribute and a single element appears to translate and scale smoothly between |
+the two positions during a page transition. |
+ |
+Both elements from the source and destination pages must share the same `hero-id` |
+and must both contain the `hero` attribute to trigger the transition. The separate |
+`hero` attribute allows you to use binding to configure the transition: |
+ |
+Example: |
+ |
+ <core-animated-pages transition="hero-transition"> |
+ <section layout horizontal> |
+ <div id="div1" flex hero-id="shared" hero?="{{selected == 0}}"></div> |
+ <div id="div2" flex hero-id="shared" hero?="{{selected == 1}}"></div> |
+ </section> |
+ <section> |
+ <section layout horizontal> |
+ <div id="div3" flex hero-id="shared" hero></div> |
+ </section> |
+ </section> |
+ </core-animated-pages> |
+ |
+In the above example, either `#div1` or `#div2` scales to `#div3` during a page transition, |
+depending on the value of `selected`. |
+ |
+Because it is common to share elements with different `border-radius` values, by default |
+this transition will also animate the `border-radius` property. |
+ |
+You can configure the duration of the hero transition with the global variable |
+`CoreStyle.g.transitions.heroDuration`. |
+ |
+@class hero-transition |
+@extends core-transition-pages |
+@status beta |
+@homepage github.io |
+--> |
+<polymer-element name="hero-transition" extends="core-transition-pages" assetpath=""> |
+ |
+</polymer-element> |
+ |
+<hero-transition id="hero-transition"></hero-transition> |
+<script src="hero-transition-extracted.js"></script> |