third_party/polymer/v1_0/components-chromium/paper-behaviors/paper-button-behavior-extracted.js

   1
   2
   3   /** @polymerBehavior */
   4   Polymer.PaperButtonBehaviorImpl = {
   5
   6     properties: {
   7
   8       _elevation: {
   9         type: Number
  10       }
  11
  12     },
  13
  14     observers: [
  15       '_calculateElevation(focused, disabled, active, pressed, receivedFocusFromKeyboard)'
  16     ],
  17
  18     hostAttributes: {
  19       role: 'button',
  20       tabindex: '0'
  21     },
  22
  23     _calculateElevation: function() {
  24       var e = 1;
  25       if (this.disabled) {
  26         e = 0;
  27       } else if (this.active || this.pressed) {
  28         e = 4;
  29       } else if (this.receivedFocusFromKeyboard) {
  30         e = 3;
  31       }
  32       this._elevation = e;
  33     }
  34   };
  35
  36   /** @polymerBehavior */
  37   Polymer.PaperButtonBehavior = [
  38     Polymer.IronButtonState,
  39     Polymer.IronControlState,
  40     Polymer.PaperButtonBehaviorImpl
  41   ];
  42