blob: eabe0615ec02650e8a53abbd8a824167d7ff89cf [file] [log] [blame]
// 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';
/*
* The gr-limited-text element is for displaying text with a maximum length
* (in number of characters) to display. If the length of the text exceeds the
* configured limit, then an ellipsis indicates that the text was truncated
* and a tooltip containing the full text is enabled.
*/
Polymer({
is: 'gr-limited-text',
properties: {
/** The un-truncated text to display. */
text: String,
/** The maximum length for the text to display before truncating. */
limit: {
type: Number,
value: null,
},
/** Boolean property used by Gerrit.TooltipBehavior. */
hasTooltip: {
type: Boolean,
value: false,
},
},
observers: [
'_updateTitle(text, limit)',
],
behaviors: [
Gerrit.TooltipBehavior,
],
/**
* The text or limit have changed. Recompute whether a tooltip needs to be
* enabled.
*/
_updateTitle(text, limit) {
this.hasTooltip = !!limit && !!text && text.length > limit;
if (this.hasTooltip) {
this.setAttribute('title', text);
} else {
this.removeAttribute('title');
}
},
_computeDisplayText(text, limit) {
if (!!limit && !!text && text.length > limit) {
return text.substr(0, limit - 1) + '…';
}
return text;
},
});
})();