dat.gui/elements/controller-base/controller-base.js

/* globals Gui, Polymer, PathObserver */
'use strict';

/*

[ ] onChange()
[ ] onFinishChange()

*/

Polymer('controller-base', {

  ready: function() {

    this.update();

  },

  update: function() {},

  init: function() {},

  // Observers
  // -------------------------------

  watch: function(object, path) {

    this.object = object;
    this.path = path;

    this.bind('value', new PathObserver(this.object, this.path));

  },

  valueChanged: function() {

    this.update();

  },

  // Helpers
  // -------------------------------

  map: function(x, a, b, c, d) {
    return (x - a) / (b - a) * (d - c) + c;
  },

  // Legacy
  // -------------------------------

  listen: function() {

    Gui.warn('controller.listen() is deprecated. ' +
             'All controllers are listened for free.');
    return this;

  },

  getValue: function() {

    return this.value;

  },

  setValue: function(v) {

    this.value = v;

  }

});