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* Copyright 2019 Adobe. All rights reserved.
* This file is licensed to you 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 REPRESENTATIONS
* OF ANY KIND, either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*/
import MasonryVariableLayout from './MasonryVariableLayout';
/**
Layout with variable width items which are expanded in their height to fill gaps (which are common with colspan).
The minimal width of the items is defined with the <code>columnwidth</code> attribute.
@example
<coral-masonry layout="dashboard" columnwidth="300">
@class Coral.Masonry.DashboardLayout
@extends {MasonryVariableLayout}
*/
class MasonryDashboardLayout extends MasonryVariableLayout {
/** @inheritdoc */
_writeItemStyle(item) {
// Reset height because otherwise getBoundingClientRect() will not return the real height
this._resetItem(item);
}
/** @inheritdoc */
_postLayout(contentHeight) {
for (let columnIndex = 0 ; columnIndex < this._columns.length ; columnIndex++) {
const column = this._columns[columnIndex];
let nextItemTop = contentHeight + this._offsetTop;
// Fill gaps by expanding the height of the items
for (let itemIndex = column.items.length - 1 ; itemIndex >= 0 ; itemIndex--) {
const item = column.items[itemIndex];
const layoutData = item._layoutData;
if (layoutData.columnIndex === columnIndex) {
const expandedHeight = nextItemTop - layoutData.top - this._verSpacing;
item.style.height = `${expandedHeight}px`;
}
nextItemTop = layoutData.top;
}
}
}
/** @inheritdoc */
_resetItem(item) {
item.style.height = '';
}
}
export default MasonryDashboardLayout;
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