update components
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parent
d9299a0a48
commit
101944aab9
36 changed files with 240 additions and 66 deletions
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@ -1,4 +1,5 @@
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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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@ -113,6 +114,15 @@ subject to an additional IP rights grant found at http://polymer.github.io/PATEN
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value: null
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},
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/**
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* Default fallback if the selection based on selected with `attrForSelected`
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* is not found.
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*/
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fallbackSelection: {
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type: String,
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value: null
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},
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/**
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* The list of items from which a selection can be made.
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*/
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@ -143,7 +153,8 @@ subject to an additional IP rights grant found at http://polymer.github.io/PATEN
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observers: [
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'_updateAttrForSelected(attrForSelected)',
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'_updateSelected(selected)'
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'_updateSelected(selected)',
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'_checkFallback(fallbackSelection)'
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],
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created: function() {
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@ -229,6 +240,12 @@ subject to an additional IP rights grant found at http://polymer.github.io/PATEN
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return this.selected != null;
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},
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_checkFallback: function() {
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if (this._shouldUpdateSelection) {
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this._updateSelected();
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}
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},
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_addListener: function(eventName) {
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this.listen(this, eventName, '_activateHandler');
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},
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@ -250,7 +267,7 @@ subject to an additional IP rights grant found at http://polymer.github.io/PATEN
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_updateAttrForSelected: function() {
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if (this._shouldUpdateSelection) {
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this.selected = this._indexToValue(this.indexOf(this.selectedItem));
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this.selected = this._indexToValue(this.indexOf(this.selectedItem));
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}
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},
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@ -260,6 +277,11 @@ subject to an additional IP rights grant found at http://polymer.github.io/PATEN
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_selectSelected: function(selected) {
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this._selection.select(this._valueToItem(this.selected));
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// Check for items, since this array is populated only when attached
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// Since Number(0) is falsy, explicitly check for undefined
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if (this.fallbackSelection && this.items.length && (this._selection.get() === undefined)) {
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this.selected = this.fallbackSelection;
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}
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},
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_filterItem: function(node) {
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