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<!DOCTYPE html>
<!--
@license
Copyright (c) 2016 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
-->
<html>
<head>
<script src="../../webcomponentsjs/webcomponents-lite.js"></script>
<title>app-route Demo</title>
<link rel="import" href="../../polymer/polymer.html">
<link rel="import" href="../../iron-demo-helpers/url-bar.html">
<link rel="import" href="../../iron-pages/iron-pages.html">
<link rel="import" href="../app-location.html">
<link rel="import" href="../app-route.html">
<link rel="import" href="youtube-demo/youtube-search.html">
<link rel="import" href="youtube-demo/youtube-toolbar.html">
<link rel="import" href="youtube-demo/video-viewer.html">
<link rel="import" href="youtube-demo/search-results.html">
<style>
body {
margin: 0;
padding: 0;
}
url-bar {
background-color: white;
}
</style>
</head>
<body>
<url-bar></url-bar>
<app-router-demo></app-router-demo>
<dom-module id="app-router-demo">
<template>
<style>
:host {
display: block;
position: relative;
height: 100vh;
@apply(--paper-font-common-base);
}
:host([video-page-active]) {
overflow: hidden;
}
:host([video-page-active]) iron-pages {
transform: translateY(-170px);
}
iron-pages {
transition: transform 0.3s;
}
</style>
<!-- app-location binds with the URL and produces a route for
app-route elements to consume. Since this demo needs to run without
server cooperation (e.g. with polyserve, in the elements catalog, etc) we'll
use the hash portion of the URL for our route paths. -->
<app-location route="{{route}}" use-hash-as-path></app-location>
<!-- app-routes parse route paths based on the their `pattern`.
Parameters are extracted into the `data` object. The rest of the path that
comes after the `pattern` is put into the `tail` object, which can be
passed to the `route` property of downstream app-routes. -->
<app-route route="{{route}}" pattern="/:page" data="{{data}}"></app-route>
<app-route route="{{route}}" pattern="/search" tail="{{searchTail}}"></app-route>
<app-route route="{{route}}" pattern="/video" tail="{{videoTail}}" active="{{videoPageActive}}"></app-route>
<youtube-toolbar collapsed$="{{videoPageActive}}">
<!-- The youtube-search has a app-route that consumes the tail of
another route (`searchTail`) -->
<youtube-search
route="{{searchTail}}"
video-data="{{videoData}}">
</youtube-search>
</youtube-toolbar>
<iron-pages attr-for-selected="id" selected="{{data.page}}">
<search-results id="search" items="{{videos}}"></search-results>
<!-- The video-viewer has a app-route that consumes the tail of
another route -->
<video-viewer id="video" route="{{videoTail}}"></video-viewer>
</iron-pages>
</template>
<script>
window.addEventListener('WebComponentsReady', function() {
Polymer({
is: 'app-router-demo',
properties: {
route: {
type: Object
},
videoData: {
type: Object,
observer: '_videoDataChanged'
},
videoPageActive: {
type: Boolean,
reflectToAttribute: true,
observer: '_videoPageActiveChanged'
},
searchTail: {
type: Object,
notify: true
},
videoTail: {
type: Object,
notify: true
},
newCategory: {
type: String
},
videos: {
type: Array,
value: function() {
return [];
}
},
data: {
type: Object,
value: function() {
return {
page: '/search/'
};
}
}
},
observers: [
'_onRoutePathChanged(route.path)'
],
_onRoutePathChanged: function(path) {
// If we do not have an initial URL, we redirect to /search
if (!path) {
this.set('route.path', '/search/');
}
},
_videoDataChanged: function(data) {
var allVideos = [];
var that = this;
data.items.forEach(function (videoItem) {
var youtubeVideo = {
id: videoItem.id.videoId,
title: videoItem.snippet.title,
thumbnail: videoItem.snippet.thumbnails.high.url
};
allVideos.push(youtubeVideo);
});
this.set('videos', allVideos);
},
_videoPageActiveChanged: function(videoPageActive, previousValue) {
// change color of page on page change
var newColor;
if (videoPageActive) {
// black
newColor = 0;
} else {
// white
newColor = 255;
}
document.body.style.backgroundColor = 'rgb(' + newColor + ',' + newColor
+ ',' + newColor + ')';
// on first load, set the color then allow color transition animations
if (previousValue === undefined) {
document.body.style.transition = 'background-color .2s linear';
return;
}
}
});
});
</script>
</dom-module>
</body>
</html>
|
