a7eef27e99
beautified comments, moved language settings to config, moved timeout settings to config, corrected bug with route link and via nodes, removed old files, corrected spelling error for roundabout
89 lines
3.0 KiB
JavaScript
89 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 JSONP call wrapper
|
|
// [wrapper for JSONP calls with DOM cleaning, fencing, timout handling]
|
|
|
|
|
|
OSRM.JSONP = {
|
|
|
|
// storage to keep track of unfinished JSONP calls
|
|
fences: {},
|
|
callbacks: {},
|
|
timeouts: {},
|
|
timers: {},
|
|
|
|
|
|
// default callback routines
|
|
late: function() { /*OSRM.debug.log("[jsonp] reply too late");*/ },
|
|
empty: function() { /*OSRM.debug.log("[jsonp] empty callback");*/ },
|
|
|
|
|
|
// init JSONP call
|
|
call: function(source, callback_function, timeout_function, timeout, id) {
|
|
// only one active JSONP call per id
|
|
if (OSRM.JSONP.fences[id] == true)
|
|
return false;
|
|
OSRM.JSONP.fences[id] = true;
|
|
|
|
// wrap timeout function
|
|
OSRM.JSONP.timeouts[id] = function(response) {
|
|
timeout_function(response);
|
|
|
|
OSRM.JSONP.callbacks[id] = OSRM.JSONP.late; // clean functions
|
|
OSRM.JSONP.timeouts[id] = OSRM.JSONP.late;
|
|
OSRM.JSONP.fences[id] = undefined; // clean fence
|
|
|
|
// OSRM.debug.log("[jsonp] timout handling: "+id);
|
|
};
|
|
|
|
// wrap callback function
|
|
OSRM.JSONP.callbacks[id] = function(response) {
|
|
clearTimeout(OSRM.JSONP.timers[id]); // clear timeout timer
|
|
OSRM.JSONP.timers[id] = undefined;
|
|
|
|
if( OSRM.JSONP.fences[id] == undefined ) // fence to prevent execution after timeout function (when precompiled!)
|
|
return;
|
|
|
|
callback_function(response); // actual wrapped callback
|
|
|
|
OSRM.JSONP.callbacks[id] = OSRM.JSONP.late; // clean functions
|
|
OSRM.JSONP.timeouts[id] = OSRM.JSONP.late;
|
|
OSRM.JSONP.fences[id] = undefined; // clean fence
|
|
|
|
// OSRM.debug.log("[jsonp] response handling: "+id);
|
|
};
|
|
|
|
// clean DOM (unfortunately, script elements cannot be reused by all browsers)
|
|
var jsonp = document.getElementById('jsonp_'+id);
|
|
if(jsonp)
|
|
jsonp.parentNode.removeChild(jsonp);
|
|
|
|
// add script to DOM
|
|
var script = document.createElement('script');
|
|
script.type = 'text/javascript';
|
|
script.id = 'jsonp_'+id;
|
|
script.src = source + "&json_callback=OSRM.JSONP.callbacks."+id + "&jsonp=OSRM.JSONP.callbacks."+id;
|
|
document.head.appendChild(script);
|
|
|
|
// start timeout timer
|
|
OSRM.JSONP.timers[id] = setTimeout(OSRM.JSONP.timeouts[id], timeout);
|
|
|
|
// OSRM.debug.log("[jsonp] init: "+id);
|
|
return true;
|
|
}
|
|
}; |