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added functions for binding functions to a context and for concating

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This commit is contained in:
DennisSchiefer 2012-05-08 15:58:54 +01:00
parent a975dba975
commit 39f33b670d
1 changed files with 20 additions and 2 deletions
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22
WebContent/utils/OSRM.classes.js
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@ -15,8 +15,8 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
or see http://www.gnu.org/licenses/agpl.txt.
*/
// OSRM base class
// [support for inheritance]
// 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)
@ -39,6 +39,24 @@ OSRM.extend = function( target_class, properties ) {
};
// bind a function to an execution context, i.e. an object (needed for correcting this pointers)
OSRM.bind = function( context, fct1, fct2 ) {
return function() {
if(fct1) fct1.apply(context, arguments);
if(fct2) fct2.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);