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1 <!-- | |
2 @license | |
3 Copyright (c) 2015 The Polymer Project Authors. All rights reserved. | |
4 This code may only be used under the BSD style license found at http://polymer.g
ithub.io/LICENSE | |
5 The complete set of authors may be found at http://polymer.github.io/AUTHORS | |
6 The complete set of contributors may be found at http://polymer.github.io/CONTRI
BUTORS | |
7 Code distributed by Google as part of the polymer project is also | |
8 subject to an additional IP rights grant found at http://polymer.github.io/PATEN
TS | |
9 --> | |
10 | |
11 <link rel="import" href="../paper-styles/paper-styles.html"> | |
12 <link rel="import" href="../iron-range-behavior/iron-range-behavior.html"> | |
13 <link rel="import" href="../iron-flex-layout/classes/iron-flex-layout.html"> | |
14 | |
15 <!-- | |
16 The progress bars are for situations where the percentage completed can be | |
17 determined. They give users a quick sense of how much longer an operation | |
18 will take. | |
19 | |
20 Example: | |
21 | |
22 <paper-progress value="10"></paper-progress> | |
23 | |
24 There is also a secondary progress which is useful for displaying intermediate | |
25 progress, such as the buffer level during a streaming playback progress bar. | |
26 | |
27 Example: | |
28 | |
29 <paper-progress value="10" secondary-progress="30"></paper-progress> | |
30 | |
31 Styling progress bar: | |
32 | |
33 To change the active progress bar color: | |
34 | |
35 paper-progress { | |
36 --paper-progress-active-color: #e91e63; | |
37 } | |
38 | |
39 To change the secondary progress bar color: | |
40 | |
41 paper-progress { | |
42 --paper-progress-secondary-color: #f8bbd0; | |
43 } | |
44 | |
45 To change the progress bar background color: | |
46 | |
47 paper-progress { | |
48 --paper-progress-container-color: #64ffda; | |
49 } | |
50 | |
51 @group Paper Elements | |
52 @element paper-progress | |
53 @hero hero.svg | |
54 @demo demo/index.html | |
55 --> | |
56 | |
57 <dom-module id="paper-progress"> | |
58 <style> | |
59 :host { | |
60 display: inline-block; | |
61 width: 200px; | |
62 height: 4px; | |
63 } | |
64 | |
65 #progressContainer { | |
66 position: relative; | |
67 height: 100%; | |
68 background-color: var(--paper-progress-container-color, --google-grey-300)
; | |
69 overflow: hidden; | |
70 } | |
71 | |
72 #activeProgress, | |
73 #secondaryProgress { | |
74 -webkit-transform-origin: left center; | |
75 transform-origin: left center; | |
76 -webkit-transform: scaleX(0); | |
77 transform: scaleX(0); | |
78 } | |
79 | |
80 #activeProgress { | |
81 background-color: var(--paper-progress-active-color, --google-green-500); | |
82 } | |
83 | |
84 #secondaryProgress { | |
85 background-color: var(--paper-progress-secondary-color, --google-green-100
); | |
86 } | |
87 | |
88 #activeProgress.indeterminate { | |
89 -webkit-transform-origin: center center; | |
90 transform-origin: center center; | |
91 -webkit-animation: indeterminate-bar 1s linear infinite; | |
92 animation: indeterminate-bar 1s linear infinite; | |
93 } | |
94 | |
95 @-webkit-keyframes indeterminate-bar { | |
96 0% { | |
97 -webkit-transform: translate(-50%) scaleX(0); | |
98 } | |
99 50% { | |
100 -webkit-transform: translate(0%) scaleX(0.3); | |
101 } | |
102 100% { | |
103 -webkit-transform: translate(50%) scaleX(0); | |
104 } | |
105 } | |
106 | |
107 @keyframes indeterminate-bar { | |
108 0% { | |
109 transform: translate(-50%) scaleX(0); | |
110 } | |
111 50% { | |
112 transform: translate(0%) scaleX(0.3); | |
113 } | |
114 100% { | |
115 transform: translate(50%) scaleX(0); | |
116 } | |
117 } | |
118 </style> | |
119 <template> | |
120 <div id="progressContainer" role="progressbar" aria-valuenow$="{{value}}" ar
ia-valuemin$="{{min}}" aria-valuemax$="{{max}}"> | |
121 <div id="secondaryProgress" class="fit"></div> | |
122 <div id="activeProgress" class="fit"></div> | |
123 </div> | |
124 </template> | |
125 </dom-module> | |
126 | |
127 <script> | |
128 Polymer({ | |
129 | |
130 is: 'paper-progress', | |
131 | |
132 behaviors: [ | |
133 Polymer.IronRangeBehavior | |
134 ], | |
135 | |
136 properties: { | |
137 | |
138 /** | |
139 * The number that represents the current secondary progress. | |
140 */ | |
141 secondaryProgress: { | |
142 type: Number, | |
143 value: 0, | |
144 notify: true | |
145 }, | |
146 | |
147 /** | |
148 * The secondary ratio | |
149 */ | |
150 secondaryRatio: { | |
151 type: Number, | |
152 value: 0, | |
153 readOnly: true, | |
154 observer: '_secondaryRatioChanged' | |
155 }, | |
156 | |
157 /** | |
158 * Use an indeterminate progress indicator. | |
159 */ | |
160 indeterminate: { | |
161 type: Boolean, | |
162 value: false, | |
163 notify: true, | |
164 observer: '_toggleIndeterminate' | |
165 } | |
166 }, | |
167 | |
168 observers: [ | |
169 '_ratioChanged(ratio)', | |
170 '_secondaryProgressChanged(secondaryProgress, min, max)' | |
171 ], | |
172 | |
173 _toggleIndeterminate: function() { | |
174 // If we use attribute/class binding, the animation sometimes doesn't tran
slate properly | |
175 // on Safari 7.1. So instead, we toggle the class here in the update metho
d. | |
176 this.toggleClass('indeterminate', this.indeterminate, this.$.activeProgres
s); | |
177 }, | |
178 | |
179 _transformProgress: function(progress, ratio) { | |
180 var transform = 'scaleX(' + (ratio / 100) + ')'; | |
181 progress.style.transform = progress.style.webkitTransform = transform; | |
182 }, | |
183 | |
184 _ratioChanged: function(ratio) { | |
185 this._transformProgress(this.$.activeProgress, ratio); | |
186 }, | |
187 | |
188 _secondaryRatioChanged: function(secondaryRatio) { | |
189 this._transformProgress(this.$.secondaryProgress, secondaryRatio); | |
190 }, | |
191 | |
192 _secondaryProgressChanged: function() { | |
193 this.secondaryProgress = this._clampValue(this.secondaryProgress); | |
194 this._setSecondaryRatio(this._calcRatio(this.secondaryProgress) * 100); | |
195 } | |
196 | |
197 }); | |
198 | |
199 </script> | |
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