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export default ( elemId, args ) => { |
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return { |
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forcingHeight: false, |
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forceHeight() { |
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if ( ! this.forcingHeight ) { |
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this.forcingHeight = true; |
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|
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const rows = this.getVisibleItemsPerRow(); |
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let changesMade = false; |
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|
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for ( let row of rows ) { |
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let heights = []; |
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|
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for ( let item of row ) { |
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const currentHeight = item.style.height; |
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|
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// Get item heights, without height set. |
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item.style.height = ''; |
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heights.push( item.offsetHeight ); |
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|
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// Reset to current height. |
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item.style.height = currentHeight; |
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} |
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|
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const maxHeight = Math.max( ...heights ); |
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|
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// If an item is not the same size, resize. |
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for ( let item of row ) { |
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const itemHeight = item.offsetHeight; |
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|
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if ( itemHeight !== maxHeight ) { |
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changesMade = true; |
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|
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item.style.height = `${ maxHeight }px`; |
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item.animate( |
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[{ height: `${ itemHeight }px` }, { height: `${ maxHeight }px` } ], |
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300 |
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); |
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} |
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} |
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} |
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|
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// Wait until animations are done. |
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setTimeout(() => { |
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// Relayout if changes were made. |
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if ( changesMade ) { |
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this.layout(); |
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} |
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|
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this.forcingHeight = false; |
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}, 400); |
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} |
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}, |
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getVisibleItemsPerRow() { |
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const visibleItems = this.isotope.getFilteredItemElements(); |
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|
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let currentRowTop = 0; |
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let currentRow = []; |
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let rows = []; |
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|
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for ( let item of visibleItems ) { |
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if ( currentRowTop < item.offsetTop ) { |
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// Item is on a new row. |
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if ( 0 < currentRow.length ) { |
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rows.push( currentRow ); |
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} |
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|
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currentRow = []; |
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currentRowTop = item.offsetTop; |
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} |
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|
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// Add item to current row. |
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currentRow.push( item ); |
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} |
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|
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// Make sure to add last row. |
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if ( 0 < currentRow.length ) { |
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rows.push( currentRow ); |
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} |
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|
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return rows; |
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}, |
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initLayout() { |
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if ( args.hasOwnProperty( 'force_height' ) && args.force_height ) { |
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this.isotope.on( 'layoutComplete', () => { |
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this.forceHeight(); |
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} ); |
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} |
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}, |
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} |
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}; |
