implab/implabjs-core Files · src/js/components/StateMachine.js

repository reorganized

cin - - Load All Authors

File last commit:

r0:6a5387d69bf1 default


                r0:6a5387d69bf1

default

Download file

             StateMachine.js
        
                    33 lines
            
             | 1.1 KiB
            
                | application/javascript
            
             |
                JavascriptLexer
            
             / src / js / components / StateMachine.js
          
                    History
                
                 |
                  Annotation
                 | Raw
                 |Copy content
                 |Copy permalink

      define([ "dojo/_base/declare", "../safe", "../text/format" ], function(declare, safe, format) {

          return declare(null, {

              states : null,

              current : null,

              constructor : function(opts) {

                  safe.argumentNotNull(opts, "opts");

                  safe.argumentNotNull(opts.states, "opts.states");

                  safe.argumentNotNull(opts.initial, "opts.initial");

                  this.states = opts.states;

                  this.current =  opts.initial;

                  if (safe.isNull(this.states[this.current]))

                      throw new Error("Invalid initial state " + this.current);

              },

              move : function(input, noThrow) {

                  safe.argumentNotNull(input, "input");

                  var next = this.states[this.current][input];

                  if(safe.isNull(next)) {

                      if (noThrow)

                          return false;

                      else

                          throw new Error(format("Invalid transition {0}-{1}->?", this.current, input));

                  } else {

                      this.current = next;

                      return true;

                  }

              }

          });

      });

	Site-wide shortcuts
/	Use quick search box
g h	Goto home page
g g	Goto my private gists page
g G	Goto my public gists page
g 0-9	Goto bookmarked items from 0-9
n r	New repository page
n g	New gist page

	Repositories
g s	Goto summary page
g c	Goto changelog page
g f	Goto files page
g F	Goto files page with file search activated
g p	Goto pull requests page
g o	Goto repository settings
g O	Goto repository access permissions settings
t s	Toggle sidebar on some pages

				define([ "dojo/_base/declare", "../safe", "../text/format" ], function(declare, safe, format) {
				return declare(null, {
				states : null,

				current : null,

				constructor : function(opts) {
				safe.argumentNotNull(opts, "opts");
				safe.argumentNotNull(opts.states, "opts.states");
				safe.argumentNotNull(opts.initial, "opts.initial");

				this.states = opts.states;
				this.current = opts.initial;

				if (safe.isNull(this.states[this.current]))
				throw new Error("Invalid initial state " + this.current);
				},

				move : function(input, noThrow) {
				safe.argumentNotNull(input, "input");

				var next = this.states[this.current][input];
				if(safe.isNull(next)) {
				if (noThrow)
				return false;
				else
				throw new Error(format("Invalid transition {0}-{1}->?", this.current, input));
				} else {
				this.current = next;
				return true;
				}
				}
				});
				});