dubuval/galleria/plugins/history/galleria.history.js

147 lines
2.9 KiB
JavaScript
Raw Normal View History

2016-10-16 08:53:19 +00:00
/**
* Galleria History Plugin 2012-04-04
* http://galleria.io
*
* Licensed under the MIT license
* https://raw.github.com/aino/galleria/master/LICENSE
*
*/
(function( $, window ) {
/*global jQuery, Galleria, window */
Galleria.requires(1.25, 'The History Plugin requires Galleria version 1.2.5 or later.');
Galleria.History = (function() {
var onloads = [],
init = false,
loc = window.location,
doc = window.document,
ie = Galleria.IE,
support = 'onhashchange' in window && ( doc.mode === undefined || doc.mode > 7 ),
iframe,
get = function( winloc ) {
if( iframe && !support && Galleria.IE ) {
winloc = winloc || iframe.location;
} else {
winloc = loc;
}
return parseInt( winloc.hash.substr(2), 10 );
},
saved = get( loc ),
callbacks = [],
onchange = function() {
$.each( callbacks, function( i, fn ) {
fn.call( window, get() );
});
},
ready = function() {
$.each( onloads, function(i, fn) {
fn();
});
init = true;
},
setHash = function( val ) {
return '/' + val;
};
// always remove support if IE < 8
if ( support && ie < 8 ) {
support = false;
}
if ( !support ) {
$(function() {
var interval = window.setInterval(function() {
var hash = get();
if ( !isNaN( hash ) && hash != saved ) {
saved = hash;
loc.hash = setHash( hash );
onchange();
}
}, 50);
if ( ie ) {
$('<iframe tabindex="-1" title="empty">').hide().attr( 'src', 'about:blank' ).one('load', function() {
iframe = this.contentWindow;
ready();
}).insertAfter(doc.body);
} else {
ready();
}
});
} else {
ready();
}
return {
change: function( fn ) {
callbacks.push( fn );
if( support ) {
window.onhashchange = onchange;
}
},
set: function( val ) {
if ( isNaN( val ) ) {
return;
}
if ( !support && ie ) {
this.ready(function() {
var idoc = iframe.document;
idoc.open();
idoc.close();
iframe.location.hash = setHash( val );
});
}
loc.hash = setHash( val );
},
ready: function(fn) {
if (!init) {
onloads.push(fn);
} else {
fn();
}
}
};
}());
}( jQuery, this ));