65 lines
2.1 KiB
JavaScript
65 lines
2.1 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 classes
|
|
// [support for inheritance and other function related functionality]
|
|
|
|
// declare one class to be a subclass of another class
|
|
// (runs anonymous function to prevent local functions cluttering global namespace)
|
|
(function() {
|
|
var _inheritFromHelper = function() {};
|
|
OSRM.inheritFrom = function( sub_class, base_class ) {
|
|
_inheritFromHelper.prototype = base_class.prototype;
|
|
sub_class.prototype = new _inheritFromHelper();
|
|
sub_class.prototype.constructor = sub_class;
|
|
sub_class.prototype.base = base_class.prototype;
|
|
};
|
|
}());
|
|
|
|
|
|
// extend prototypes of a class -> used to add member values and functions
|
|
OSRM.extend = function( target_class, properties ) {
|
|
for( property in properties ) {
|
|
target_class.prototype[property] = properties[property];
|
|
}
|
|
};
|
|
|
|
|
|
// bind a function to an execution context, i.e. an object (needed for correcting this pointers)
|
|
OSRM.bind = function( context, fct1 ) {
|
|
return function() {
|
|
fct1.apply(context, arguments);
|
|
};
|
|
};
|
|
|
|
|
|
// concatenate the execution of two functions with the same set of parameters
|
|
OSRM.concat = function( fct1, fct2 ) {
|
|
return function() {
|
|
fct1.apply(this,arguments);
|
|
fct2.apply(this,arguments);
|
|
};
|
|
};
|
|
|
|
|
|
// [usage of convenience functions]
|
|
// SubClass = function() {
|
|
// SubClass.prototype.base.constructor.apply(this, arguments);
|
|
// }
|
|
// OSRM.inheritFrom( SubClass, BaseClass );
|
|
// OSRM.extend( SubClass, { property:value } );
|