mirror of
https://github.com/jellyfin/jellyfin-web.git
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103 lines
2.6 KiB
HTML
103 lines
2.6 KiB
HTML
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<!--
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@license
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Copyright (c) 2015 The Polymer Project Authors. All rights reserved.
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This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
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The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
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The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
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Code distributed by Google as part of the polymer project is also
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subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
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-->
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<link rel="import" href="../polymer/polymer.html">
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<script>
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/**
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* @demo demo/index.html
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* @polymerBehavior
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*/
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Polymer.IronControlState = {
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properties: {
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/**
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* If true, the element currently has focus.
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*/
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focused: {
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type: Boolean,
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value: false,
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notify: true,
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readOnly: true,
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reflectToAttribute: true
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},
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/**
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* If true, the user cannot interact with this element.
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*/
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disabled: {
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type: Boolean,
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value: false,
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notify: true,
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observer: '_disabledChanged',
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reflectToAttribute: true
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},
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_oldTabIndex: {
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type: Number
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},
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_boundFocusBlurHandler: {
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type: Function,
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value: function() {
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return this._focusBlurHandler.bind(this);
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}
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}
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},
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observers: [
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'_changedControlState(focused, disabled)'
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],
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ready: function() {
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this.addEventListener('focus', this._boundFocusBlurHandler, true);
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this.addEventListener('blur', this._boundFocusBlurHandler, true);
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},
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_focusBlurHandler: function(event) {
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var target = event.path ? event.path[0] : event.target;
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if (target === this) {
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var focused = event.type === 'focus';
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this._setFocused(focused);
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} else if (!this.shadowRoot) {
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this.fire(event.type, {sourceEvent: event}, {
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node: this,
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bubbles: event.bubbles,
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cancelable: event.cancelable
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});
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}
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},
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_disabledChanged: function(disabled, old) {
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this.setAttribute('aria-disabled', disabled ? 'true' : 'false');
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this.style.pointerEvents = disabled ? 'none' : '';
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if (disabled) {
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this._oldTabIndex = this.tabIndex;
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this.focused = false;
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this.tabIndex = -1;
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} else if (this._oldTabIndex !== undefined) {
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this.tabIndex = this._oldTabIndex;
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}
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},
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_changedControlState: function() {
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// _controlStateChanged is abstract, follow-on behaviors may implement it
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if (this._controlStateChanged) {
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this._controlStateChanged();
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}
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}
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};
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</script>
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