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| 1 | 1 |
| 2 | 2 |
| 3 /** @polymerBehavior */ | 3 /** |
| 4 | 4 * @demo demo/index.html |
| 5 * @polymerBehavior |
| 6 */ |
| 5 Polymer.IronControlState = { | 7 Polymer.IronControlState = { |
| 6 | 8 |
| 7 properties: { | 9 properties: { |
| 8 | 10 |
| 9 /** | 11 /** |
| 10 * If true, the element currently has focus. | 12 * If true, the element currently has focus. |
| 11 * | |
| 12 * @attribute focused | |
| 13 * @type boolean | |
| 14 * @default false | |
| 15 */ | 13 */ |
| 16 focused: { | 14 focused: { |
| 17 type: Boolean, | 15 type: Boolean, |
| 18 value: false, | 16 value: false, |
| 19 notify: true, | 17 notify: true, |
| 20 readOnly: true, | 18 readOnly: true, |
| 21 reflectToAttribute: true | 19 reflectToAttribute: true |
| 22 }, | 20 }, |
| 23 | 21 |
| 24 /** | 22 /** |
| 25 * If true, the user cannot interact with this element. | 23 * If true, the user cannot interact with this element. |
| 26 * | |
| 27 * @attribute disabled | |
| 28 * @type boolean | |
| 29 * @default false | |
| 30 */ | 24 */ |
| 31 disabled: { | 25 disabled: { |
| 32 type: Boolean, | 26 type: Boolean, |
| 33 value: false, | 27 value: false, |
| 34 notify: true, | 28 notify: true, |
| 35 observer: '_disabledChanged', | 29 observer: '_disabledChanged', |
| 36 reflectToAttribute: true | 30 reflectToAttribute: true |
| 37 }, | 31 }, |
| 38 | 32 |
| 39 _oldTabIndex: { | 33 _oldTabIndex: { |
| 40 type: Number | 34 type: Number |
| 35 }, |
| 36 |
| 37 _boundFocusBlurHandler: { |
| 38 type: Function, |
| 39 value: function() { |
| 40 return this._focusBlurHandler.bind(this); |
| 41 } |
| 41 } | 42 } |
| 43 |
| 42 }, | 44 }, |
| 43 | 45 |
| 44 observers: [ | 46 observers: [ |
| 45 '_changedControlState(focused, disabled)' | 47 '_changedControlState(focused, disabled)' |
| 46 ], | 48 ], |
| 47 | 49 |
| 48 listeners: { | |
| 49 focus: '_focusHandler', | |
| 50 blur: '_blurHandler' | |
| 51 }, | |
| 52 | |
| 53 ready: function() { | 50 ready: function() { |
| 54 // TODO(sjmiles): ensure read-only property is valued so the compound | 51 // TODO(sjmiles): ensure read-only property is valued so the compound |
| 55 // observer will fire | 52 // observer will fire |
| 56 if (this.focused === undefined) { | 53 if (this.focused === undefined) { |
| 57 this._setFocused(false); | 54 this._setFocused(false); |
| 58 } | 55 } |
| 56 this.addEventListener('focus', this._boundFocusBlurHandler, true); |
| 57 this.addEventListener('blur', this._boundFocusBlurHandler, true); |
| 59 }, | 58 }, |
| 60 | 59 |
| 61 _focusHandler: function() { | 60 _focusBlurHandler: function(event) { |
| 62 this._setFocused(true); | 61 var target = event.path ? event.path[0] : event.target; |
| 63 }, | 62 if (target === this) { |
| 64 | 63 var focused = event.type === 'focus'; |
| 65 _blurHandler: function() { | 64 this._setFocused(focused); |
| 66 this._setFocused(false); | 65 } else if (!this.shadowRoot) { |
| 66 event.stopPropagation(); |
| 67 this.fire(event.type, {sourceEvent: event}, { |
| 68 node: this, |
| 69 bubbles: event.bubbles, |
| 70 cancelable: event.cancelable |
| 71 }); |
| 72 } |
| 67 }, | 73 }, |
| 68 | 74 |
| 69 _disabledChanged: function(disabled, old) { | 75 _disabledChanged: function(disabled, old) { |
| 70 this.setAttribute('aria-disabled', disabled ? 'true' : 'false'); | 76 this.setAttribute('aria-disabled', disabled ? 'true' : 'false'); |
| 71 this.style.pointerEvents = disabled ? 'none' : ''; | 77 this.style.pointerEvents = disabled ? 'none' : ''; |
| 72 if (disabled) { | 78 if (disabled) { |
| 73 this._oldTabIndex = this.tabIndex; | 79 this._oldTabIndex = this.tabIndex; |
| 74 this.focused = false; | 80 this.focused = false; |
| 75 this.tabIndex = -1; | 81 this.tabIndex = -1; |
| 76 } else if (this._oldTabIndex !== undefined) { | 82 } else if (this._oldTabIndex !== undefined) { |
| 77 this.tabIndex = this._oldTabIndex; | 83 this.tabIndex = this._oldTabIndex; |
| 78 } | 84 } |
| 79 }, | 85 }, |
| 80 | 86 |
| 81 _changedControlState: function() { | 87 _changedControlState: function() { |
| 82 // _controlStateChanged is abstract, follow-on behaviors may implement it | 88 // _controlStateChanged is abstract, follow-on behaviors may implement it |
| 83 if (this._controlStateChanged) { | 89 if (this._controlStateChanged) { |
| 84 this._controlStateChanged(); | 90 this._controlStateChanged(); |
| 85 } | 91 } |
| 86 } | 92 } |
| 87 | 93 |
| 88 }; | 94 }; |
| 89 | 95 |
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