mediawiki-skins-MinervaNeue/resources/skins.minerva.scripts/DownloadIcon.js

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( function ( M ) {
var msg = mw.msg,
MAX_PRINT_TIMEOUT = 3000,
Icon = M.require( 'mobile.startup/Icon' );
/**
* A download icon for triggering print functionality
* @class DownloadIcon
* @extends Icon
*
* @param {Skin} skin
* @constructor
*/
function DownloadIcon( skin ) {
var options = {};
this.skin = skin;
options.tagName = 'li';
options.title = msg( 'minerva-download' );
options.name = 'download';
Icon.call( this, options );
}
OO.mfExtend( DownloadIcon, Icon, {
/**
* Replace download icon with a spinner
*/
showSpinner: function () {
this.options.name = 'spinner';
this.render();
},
/**
* Restore download icon from spinner state
*/
hideSpinner: function () {
this.options.name = 'download';
this.render();
},
isTemplateMode: false,
/**
* onClick handler for button that invokes print function
*/
onClick: function () {
var self = this,
hideSpinner = this.hideSpinner.bind( this );
function doPrint() {
self.timeout = clearTimeout( self.timeout );
window.print();
hideSpinner();
}
// The click handler may be invoked multiple times so if a pending print is occurring
// do nothing.
if ( !this.timeout ) {
this.showSpinner();
// If all image downloads are taking longer to load then the MAX_PRINT_TIMEOUT
// abort the spinner and print regardless.
this.timeout = setTimeout( doPrint, MAX_PRINT_TIMEOUT );
this.skin.loadImagesList().always( function () {
if ( self.timeout ) {
doPrint();
}
} );
}
},
events: {
click: 'onClick'
}
} );
M.define( 'skins.minerva.scripts/DownloadIcon', DownloadIcon );
}( mw.mobileFrontend ) );