pitaya-launcher/js/components/app-icon.jsx

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React
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2015-09-03 15:50:23 +02:00
var React = require('react');
var Util = require('../util');
var LazyLoad = require('./mixins/lazy-load');
var LOADING_ICON = 'img/hourglass.svg';
var DEFAULT_ICON = 'img/default-icon.svg';
module.exports = React.createClass({
mixins: [LazyLoad],
getInitialState: function() {
return { icon: DEFAULT_ICON, currentTheme: undefined };
},
onInViewport: function() {
this.updateIconIfInViewport();
},
updateIconIfInViewport: function() {
var currentTheme = this.state.currentTheme;
var newTheme = this.props.theme;
if( !this.isInViewport() || newTheme === currentTheme ) return;
this.setState({ icon: LOADING_ICON, currentTheme: newTheme });
var desktopEntry = this.props.desktopEntry;
this._findIcon(this.props.icon, newTheme);
},
componentDidUpdate: function() {
this.updateIconIfInViewport();
},
render: function() {
var icon = this.state.icon;
return (
<img src={icon} className="app-icon" />
);
},
_findIcon: function(iconPath, theme) {
var self = this;
console.log('Search icon %s:%s', iconPath, theme);
Util.DesktopApps.findIcon(iconPath || DEFAULT_ICON, theme)
.then(function(iconPath) {
if( !iconPath || /\.xpm$/.test(iconPath) ) {
return Util.DesktopApps.findIcon(DEFAULT_ICON, theme);
}
return iconPath;
})
.then(function(iconPath) {
global.window.requestAnimationFrame(function() {
self.setState({ icon: iconPath });
});
})
;
}
});