coral-spectrum/coral-component-masonry/src/scripts/MasonryFixedSpreadLayout.js
- /**
- * 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 MasonryColumnLayout from './MasonryColumnLayout';
- import {getFirstRowFilledColumns} from './MasonryLayoutUtil';
-
- /**
- Layout with fixed width and evenly spread items. The width of the items is defined with the <code>columnwidth</code>
- attribute.
-
- @example
- <coral-masonry layout="fixed-spread" columnwidth="300">
-
- @class Coral.Masonry.FixedSpreadLayout
- @extends {MasonryColumnLayout}
- */
- class MasonryFixedSpreadLayout extends MasonryColumnLayout {
- /** @inheritdoc */
- _writeStyles(items) {
- const columns = this._columns;
-
- // If the first row is not filled, then the items should be aligned left
- this._alignLeft = getFirstRowFilledColumns(columns, items) < columns.length;
- if (!this._alignLeft) {
- const remainingWidth = this._masonryInnerWidth - this._columnWidth * columns.length;
- this._horSpacing = remainingWidth / (columns.length + 1);
- }
-
- super._writeStyles(items);
- }
-
- /** @inheritdoc */
- _getItemWidth(colspan) {
- return this._columnWidth * colspan + this._horSpacing * (colspan - 1);
- }
-
- /** @inheritdoc */
- _getItemLeft(columnIndex) {
- return this._zeroOffsetLeft + this._columnWidth * columnIndex + this._horSpacing * (columnIndex + 1);
- }
- }
-
- export default MasonryFixedSpreadLayout;