Unofficial JDA (Javascript Dataflow Architecture) WikiPublic Space

TimerInfotron

Everytime a message comes into "trigger", the timer is reset

input terminals: trigger - <type: any>

output_terminals: time_out - <type: any>

properties: timeout - <type: number> timeout_value - <type: any> auto_start - <type: boolean>

Demos that use it

  • timer.html

BLUEPRINT(
"~01F5F5C7589CB94811A660996941406A57",
[
 ["%startup", "onStartUp", 1],
 ["trigger_in", "onTrigger", 1]
],
[
 "timeout_value_out"
],
function()
{
  var Blueprint = function(id, props, bp_uuid)
  {
    this.__init__(id, bp_uuid);

    this._id = undefined;
    this._timeout = props["timeout"] || 1000;
    this._timeout_val = props["timeout_value"];
    this._autostart = (props["auto_start"] == false) ? false : true;
  };


  Blueprint.prototype = new Infotron;

  Blueprint.prototype.onStartUp = function(msg) 
  {
    if (this._autostart) {
      this.onTrigger(msg);
    }
  }

  Blueprint.prototype.onTrigger = function(msg) 
  {
    var val;
    var self = this;
    var func = function()
    {
      if (self._timeout_val === undefined) {
        val = new Date();
      } else {
        val = self._timeout_val;
      }
      self.postMessage("timeout_value_out", val);
    };

    if (this._id != undefined) {
        __w.clearTimeout(this._id);
    }

    this._id = __w.setTimeout(func, this._timeout);
  };
    

  return Blueprint;
}, "Wait, then Send Message");
View Page History
Print this page