osrm-backend/WebContent/utils/OSRM.browsers.js
2012-05-08 21:40:55 +02:00

82 lines
3.0 KiB
JavaScript

/*
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU AFFERO General Public License as published by
the Free Software Foundation; either version 3 of the License, or
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
or see http://www.gnu.org/licenses/agpl.txt.
*/
// OSRM old/cross browser support
// [browser detection and routines for old/cross browser support]
// browser detection (runs anonymous function to prevent local variables cluttering global namespace)
(function() {
var useragent = navigator.userAgent;
OSRM.Browser = {
FF3: useragent.search(/Firefox\/3/),
IE6_8: useragent.search(/MSIE (6|7|8)/),
IE6_9: useragent.search(/MSIE (6|7|8|9)/)
};
}());
// compatibility tools
//add document.head reference for older browsers
document.head = document.head || document.getElementsByTagName('head')[0];
// supply getElementsByClassName method for older browser
OSRM.Browser.getElementsByClassName = function( node, classname ) {
var a = [];
var re = new RegExp('(^| )'+classname+'( |$)');
var els = node.getElementsByTagName("*");
for(var i=0,j=els.length; i<j; i++)
if(re.test(els[i].className))a.push(els[i]);
return a;
};
// call a function when DOM has finished loading and remove event handler (optionally pass a different window object)
OSRM.Browser.onLoadHandler = function( function_pointer, the_window ) {
the_window = the_window || window; // default document
var the_document = the_window.document;
if(the_window.addEventListener) { // FF, CH, IE9+
var temp_function = function() {
the_window.removeEventListener("DOMContentLoaded", arguments.callee, false);
function_pointer.call();
};
the_window.addEventListener("DOMContentLoaded", temp_function, false);
}
else if(the_document.attachEvent) { // IE8-
var temp_function = function() {
if ( the_document.readyState === "interactive" || the_document.readyState === "complete" ) {
the_document.detachEvent("onreadystatechange", arguments.callee);
function_pointer.call();
}
};
the_document.attachEvent("onreadystatechange", temp_function);
}
};
OSRM.Browser.onUnloadHandler = function( function_pointer, the_window ) {
the_window = the_window || window; // default document
var the_document = the_window.document;
if(the_window.addEventListener) { // FF, CH, IE9+
the_window.addEventListener("unload", function_pointer, false);
}
else if(the_document.attachEvent) { // IE8-
the_document.attachEvent("onunload", function_pointer);
}
};