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// Copyright (C) 2017 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
(function() {
'use strict';
Polymer({
is: 'gr-label-score-row',
/**
* Fired when any label is changed.
*
* @event labels-changed
*/
properties: {
/**
* @type {{ name: string }}
*/
label: Object,
labels: Object,
name: {
type: String,
reflectToAttribute: true,
},
permittedLabels: Object,
labelValues: Object,
_selectedValueText: {
type: String,
value: 'No value selected',
},
},
get selectedItem() {
if (!this._ironSelector) { return; }
return this._ironSelector.selectedItem;
},
get selectedValue() {
if (!this._ironSelector) { return; }
return this._ironSelector.selected;
},
setSelectedValue(value) {
// The selector may not be present if it’s not at the latest patch set.
if (!this._ironSelector) { return; }
this._ironSelector.select(value);
},
get _ironSelector() {
return this.$$('iron-selector');
},
_computeBlankItems(permittedLabels, label, side) {
if (!permittedLabels || !permittedLabels[label] || !this.labelValues ||
!Object.keys(this.labelValues).length) {
return [];
}
const startPosition = this.labelValues[parseInt(
permittedLabels[label][0], 10)];
if (side === 'start') {
return new Array(startPosition);
}
const endPosition = this.labelValues[parseInt(
permittedLabels[label][permittedLabels[label].length - 1], 10)];
return new Array(Object.keys(this.labelValues).length - endPosition - 1);
},
_getLabelValue(labels, permittedLabels, label) {
if (label.value) {
return label.value;
} else if (labels[label.name].hasOwnProperty('default_value') &&
permittedLabels.hasOwnProperty(label.name)) {
// default_value is an int, convert it to string label, e.g. "+1".
return permittedLabels[label.name].find(
value => parseInt(value, 10) === labels[label.name].default_value);
}
},
_computeLabelValue(labels, permittedLabels, label) {
if (!labels[label.name]) { return null; }
const labelValue = this._getLabelValue(labels, permittedLabels, label);
const len = permittedLabels[label.name] != null ?
permittedLabels[label.name].length : 0;
for (let i = 0; i < len; i++) {
const val = permittedLabels[label.name][i];
if (val === labelValue) {
return val;
}
}
return null;
},
_setSelectedValueText(e) {
// Needed because when the selected item changes, it first changes to
// nothing and then to the new item.
if (!e.target.selectedItem) { return; }
this._selectedValueText = e.target.selectedItem.getAttribute('title');
// Needed to update the style of the selected button.
this.updateStyles();
this.fire('labels-changed');
},
_computeAnyPermittedLabelValues(permittedLabels, label) {
return permittedLabels.hasOwnProperty(label);
},
_computeHiddenClass(permittedLabels, label) {
return !this._computeAnyPermittedLabelValues(permittedLabels, label) ?
'hidden' : '';
},
_computePermittedLabelValues(permittedLabels, label) {
return permittedLabels[label];
},
_computeLabelValueTitle(labels, label, value) {
return labels[label] && labels[label].values[value];
},
});
})();
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