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Unified Diff: third_party/polymer/v1_0/components/iron-image/iron-image.html

Issue 1162963002: Revert "Rename polymer and cr_elements v0_8 to v1_0" (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years, 7 months ago
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Index: third_party/polymer/v1_0/components/iron-image/iron-image.html
diff --git a/third_party/polymer/v1_0/components/iron-image/iron-image.html b/third_party/polymer/v1_0/components/iron-image/iron-image.html
deleted file mode 100644
index 07eb4585161c032e82204878c3725cf6e6f59bca..0000000000000000000000000000000000000000
--- a/third_party/polymer/v1_0/components/iron-image/iron-image.html
+++ /dev/null
@@ -1,394 +0,0 @@
-<!--
-@license
-Copyright (c) 2015 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 rel="import" href="../polymer/polymer.html">
-<link rel="import" href="../iron-flex-layout/classes/iron-flex-layout.html">
-
-<!--
-`iron-image` is an element for displaying an image that provides useful sizing and
-preloading options not found on the standard `<img>` tag.
-
-The `sizing` option allows the image to be either cropped (`cover`) or
-letterboxed (`contain`) to fill a fixed user-size placed on the element.
-
-The `preload` option prevents the browser from rendering the image until the
-image is fully loaded. In the interim, either the element's CSS `background-color`
-can be be used as the placeholder, or the `placeholder` property can be
-set to a URL (preferably a data-URI, for instant rendering) for an
-placeholder image.
-
-The `fade` option (only valid when `preload` is set) will cause the placeholder
-image/color to be faded out once the image is rendered.
-
-Examples:
-
- Basically identical to &lt;img src="..."&gt; tag:
-
- <iron-image src="http://lorempixel.com/400/400"></iron-image>
-
- Will letterbox the image to fit:
-
- <iron-image style="width:400px; height:400px;" sizing="contain"
- src="http://lorempixel.com/600/400"></iron-image>
-
- Will crop the image to fit:
-
- <iron-image style="width:400px; height:400px;" sizing="cover"
- src="http://lorempixel.com/600/400"></iron-image>
-
- Will show light-gray background until the image loads:
-
- <iron-image style="width:400px; height:400px; background-color: lightgray;"
- sizing="cover" preload src="http://lorempixel.com/600/400"></iron-image>
-
- Will show a base-64 encoded placeholder image until the image loads:
-
- <iron-image style="width:400px; height:400px;" placeholder="data:image/gif;base64,..."
- sizing="cover" preload src="http://lorempixel.com/600/400"></iron-image>
-
- Will fade the light-gray background out once the image is loaded:
-
- <iron-image style="width:400px; height:400px; background-color: lightgray;"
- sizing="cover" preload fade src="http://lorempixel.com/600/400"></iron-image>
-
-
-@group Iron Elements
-@element iron-image
-@demo demo/index.html
--->
-
-<dom-module id="iron-image">
-
- <style>
-
- :host {
- display: inline-block;
- overflow: hidden;
- position: relative;
- }
-
- :host([sizing]) #img {
- display: none;
- }
-
- #placeholder {
- background-color: inherit;
- opacity: 1;
- }
-
- #placeholder.faded-out {
- transition: opacity 0.5s linear;
- opacity: 0;
- }
-
- </style>
-
- <template>
-
- <img id="img" role="none" hidden$="[[_computeImageVisibility(sizing)]]">
- <div id="placeholder" hidden$="[[_computePlaceholderVisibility(fade,loaded,preload)]]" class$="[[_computePlaceholderClassName(fade,loaded,preload)]]"></div>
- <content></content>
-
- </template>
-
-</dom-module>
-
-<script>
-
- Polymer({
-
- is: 'iron-image',
-
- properties: {
- /**
- * The URL of an image.
- *
- * @attribute src
- * @type string
- * @default ''
- */
- src: {
- observer: '_srcChanged',
- type: String,
- value: ''
- },
-
- /**
- * When true, the image is prevented from loading and any placeholder is
- * shown. This may be useful when a binding to the src property is known to
- * be invalid, to prevent 404 requests.
- *
- * @attribute preventLoad
- * @type boolean
- * @default false
- */
- preventLoad: {
- type: Boolean,
- value: false
- },
-
- /**
- * Sets a sizing option for the image. Valid values are `contain` (full
- * aspect ratio of the image is contained within the element and
- * letterboxed) or `cover` (image is cropped in order to fully cover the
- * bounds of the element), or `null` (default: image takes natural size).
- *
- * @attribute sizing
- * @type string
- * @default null
- */
- sizing: {
- type: String,
- value: null
- },
-
- /**
- * When a sizing option is uzed (`cover` or `contain`), this determines
- * how the image is aligned within the element bounds.
- *
- * @attribute position
- * @type string
- * @default 'center'
- */
- position: {
- type: String,
- value: 'center'
- },
-
- /**
- * When `true`, any change to the `src` property will cause the `placeholder`
- * image to be shown until the
- *
- * @attribute preload
- * @type boolean
- * @default false
- */
- preload: {
- type: Boolean,
- value: false
- },
-
- /**
- * This image will be used as a background/placeholder until the src image has
- * loaded. Use of a data-URI for placeholder is encouraged for instant rendering.
- *
- * @attribute placeholder
- * @type string
- * @default null
- */
- placeholder: {
- type: String,
- value: null
- },
-
- /**
- * When `preload` is true, setting `fade` to true will cause the image to
- * fade into place.
- *
- * @attribute fade
- * @type boolean
- * @default false
- */
- fade: {
- type: Boolean,
- value: false
- },
-
- /**
- * Read-only value that is true when the image is loaded.
- *
- * @attribute preloaded
- * @type boolean
- * @default false
- */
- loaded: {
- notify: true,
- type: Boolean,
- value: false
- },
-
- /**
- * Read-only value that tracks the loading state of the image when the `preload`
- * option is used.
- *
- * @attribute loading
- * @type boolean
- * @default false
- */
- loading: {
- notify: true,
- type: Boolean,
- value: false
- },
-
- /**
- * Can be used to set the width of image (e.g. via binding); size may also be
- * set via CSS.
- *
- * @attribute width
- * @type number
- * @default null
- */
- width: {
- observer: '_widthChanged',
- type: Number,
- value: null
- },
-
- /**
- * Can be used to set the height of image (e.g. via binding); size may also be
- * set via CSS.
- *
- * @attribute height
- * @type number
- * @default null
- */
- height: {
- observer: '_heightChanged',
- type: Number,
- value: null
- },
-
- _placeholderBackgroundUrl: {
- type: String,
- computed: '_computePlaceholderBackgroundUrl(preload,placeholder)',
- observer: '_placeholderBackgroundUrlChanged'
- },
-
- requiresPreload: {
- type: Boolean,
- computed: '_computeRequiresPreload(preload,loaded)'
- },
-
- canLoad: {
- type: Boolean,
- computed: '_computeCanLoad(preventLoad, src)'
- }
-
- },
-
- observers: [
- '_transformChanged(sizing, position)',
- '_loadBehaviorChanged(canLoad, preload, loaded)',
- '_loadStateChanged(src, preload, loaded)',
- ],
-
- ready: function() {
- if (!this.hasAttribute('role')) {
- this.setAttribute('role', 'img');
- }
- },
-
- _computeImageVisibility: function() {
- return !!this.sizing;
- },
-
- _computePlaceholderVisibility: function() {
- return !this.preload || (this.loaded && !this.fade);
- },
-
- _computePlaceholderClassName: function() {
- if (!this.preload) {
- return '';
- }
-
- var className = 'fit';
- if (this.loaded && this.fade) {
- className += ' faded-out';
- }
- return className;
- },
-
- _computePlaceholderBackgroundUrl: function() {
- if (this.preload && this.placeholder) {
- return 'url(' + this.placeholder + ')';
- }
-
- return null;
- },
-
- _computeRequiresPreload: function() {
- return this.preload && !this.loaded;
- },
-
- _computeCanLoad: function() {
- return Boolean(!this.preventLoad && this.src);
- },
-
- _widthChanged: function() {
- this.style.width = isNaN(this.width) ? this.width : this.width + 'px';
- },
-
- _heightChanged: function() {
- this.style.height = isNaN(this.height) ? this.height : this.height + 'px';
- },
-
- _srcChanged: function(newSrc, oldSrc) {
- if (newSrc !== oldSrc) {
- this.loaded = false;
- }
- },
-
- _placeholderBackgroundUrlChanged: function() {
- this.$.placeholder.style.backgroundImage =
- this._placeholderBackgroundUrl;
- },
-
- _transformChanged: function() {
- var placeholderStyle = this.$.placeholder.style;
-
- this.style.backgroundSize =
- placeholderStyle.backgroundSize = this.sizing;
-
- this.style.backgroundPosition =
- placeholderStyle.backgroundPosition =
- this.sizing ? this.position : null;
-
- this.style.backgroundRepeat =
- placeholderStyle.backgroundRepeat =
- this.sizing ? 'no-repeat' : null;
- },
-
- _loadBehaviorChanged: function() {
- var img;
-
- if (!this.canLoad) {
- return;
- }
-
- if (this.requiresPreload) {
- img = new Image();
- img.src = this.src;
-
- this.loading = true;
-
- img.onload = function() {
- this.loading = false;
- this.loaded = true;
- }.bind(this);
- } else {
- this.loaded = true;
- }
- },
-
- _loadStateChanged: function() {
- if (this.requiresPreload) {
- return;
- }
-
- if (this.sizing) {
- this.style.backgroundImage = this.src ? 'url(' + this.src + ')': '';
- } else {
- this.$.img.src = this.src || '';
- }
- }
- });
-
-</script>
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