2016-01-15 15:02:28 +03:00
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/*
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Copyright 2015, 2016 OpenMarket Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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'use strict';
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var React = require('react');
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var AvatarLogic = require("../../../Avatar");
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module.exports = React.createClass({
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displayName: 'BaseAvatar',
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propTypes: {
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name: React.PropTypes.string.isRequired, // The name (first initial used as default)
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idName: React.PropTypes.string, // ID for generating hash colours
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title: React.PropTypes.string, // onHover title text
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url: React.PropTypes.string, // highest priority of them all, shortcut to set in urls[0]
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urls: React.PropTypes.array, // [highest_priority, ... , lowest_priority]
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width: React.PropTypes.number,
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height: React.PropTypes.number,
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resizeMethod: React.PropTypes.string,
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defaultToInitialLetter: React.PropTypes.bool // true to add default url
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},
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getDefaultProps: function() {
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return {
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width: 40,
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height: 40,
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resizeMethod: 'crop',
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defaultToInitialLetter: true
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}
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},
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getInitialState: function() {
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return this._getState(this.props);
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},
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componentWillReceiveProps: function(nextProps) {
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// work out if we need to call setState (if the image URLs array has changed)
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var newState = this._getState(nextProps);
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var newImageUrls = newState.imageUrls;
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var oldImageUrls = this.state.imageUrls;
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if (newImageUrls.length !== oldImageUrls.length) {
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this.setState(newState); // detected a new entry
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}
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else {
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// check each one to see if they are the same
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for (var i = 0; i < newImageUrls.length; i++) {
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if (oldImageUrls[i] !== newImageUrls[i]) {
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this.setState(newState); // detected a diff
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break;
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}
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}
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}
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},
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_getState: function(props) {
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// work out the full set of urls to try to load. This is formed like so:
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// imageUrls: [ props.url, props.urls, default image ]
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var urls = props.urls || [];
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if (props.url) {
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urls.unshift(props.url); // put in urls[0]
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}
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var defaultImageUrl = null;
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if (props.defaultToInitialLetter) {
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defaultImageUrl = AvatarLogic.defaultAvatarUrlForString(
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props.idName || props.name
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);
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urls.push(defaultImageUrl); // lowest priority
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}
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return {
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imageUrls: urls,
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defaultImageUrl: defaultImageUrl,
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urlsIndex: 0
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};
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},
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onError: function(ev) {
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var nextIndex = this.state.urlsIndex + 1;
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if (nextIndex < this.state.imageUrls.length) {
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// try the next one
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this.setState({
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urlsIndex: nextIndex
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});
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}
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},
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_getInitialLetter: function() {
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var name = this.props.name;
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//For large characters (exceeding 2 bytes), this function will get the correct character.
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//However, this does NOT get the second character correctly if a large character is before it.
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var initial = String.fromCodePoint(name.codePointAt(0));
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if ((initial === '@' || initial === '#') && name[1]) {
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initial = String.fromCodePoint(name.codePointAt(1));
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}
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return initial.toUpperCase();
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},
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render: function() {
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var name = this.props.name;
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var imageUrl = this.state.imageUrls[this.state.urlsIndex];
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if (imageUrl === this.state.defaultImageUrl) {
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var initialLetter = this._getInitialLetter();
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return (
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<span className="mx_BaseAvatar" {...this.props}>
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<span className="mx_BaseAvatar_initial" aria-hidden="true"
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style={{ fontSize: (this.props.width * 0.65) + "px",
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width: this.props.width + "px",
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lineHeight: this.props.height + "px" }}>
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{ initialLetter }
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</span>
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<img className="mx_BaseAvatar_image" src={imageUrl}
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title={this.props.title} onError={this.onError}
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width={this.props.width} height={this.props.height} />
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</span>
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);
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}
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return (
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<img className="mx_BaseAvatar mx_BaseAvatar_image" src={imageUrl}
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onError={this.onError}
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width={this.props.width} height={this.props.height}
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title={this.props.title}
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{...this.props} />
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);
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}
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});
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