( availableWidth: number, columns: IColumn[], changedColumns: Map<Key, ColumnSize>, getDefaultWidth?: (index: number) => ColumnSize | null | undefined, getDefaultMinWidth?: (index: number) => ColumnSize | null | undefined )
| 107 | * index. |
| 108 | */ |
| 109 | export function calculateColumnSizes( |
| 110 | availableWidth: number, |
| 111 | columns: IColumn[], |
| 112 | changedColumns: Map<Key, ColumnSize>, |
| 113 | getDefaultWidth?: (index: number) => ColumnSize | null | undefined, |
| 114 | getDefaultMinWidth?: (index: number) => ColumnSize | null | undefined |
| 115 | ): number[] { |
| 116 | let originalWidth = availableWidth; |
| 117 | let flooredWidth = Math.floor(availableWidth); |
| 118 | let hasFractionalWidth = availableWidth - flooredWidth > 0; |
| 119 | availableWidth = flooredWidth; |
| 120 | let hasNonFrozenItems = false; |
| 121 | let flexItems: FlexItem[] = columns.map((column, index) => { |
| 122 | let width: ColumnSize = ( |
| 123 | changedColumns.get(column.key) != null |
| 124 | ? (changedColumns.get(column.key) ?? '1fr') |
| 125 | : (column.width ?? column.defaultWidth ?? getDefaultWidth?.(index) ?? '1fr') |
| 126 | ) as ColumnSize; |
| 127 | let frozen = false; |
| 128 | let baseSize = 0; |
| 129 | let flex = 0; |
| 130 | let targetMainSize = 0; |
| 131 | if (isStatic(width)) { |
| 132 | baseSize = parseStaticWidth(width, availableWidth); |
| 133 | frozen = true; |
| 134 | } else { |
| 135 | flex = parseFractionalUnit(width); |
| 136 | if (flex <= 0) { |
| 137 | frozen = true; |
| 138 | } |
| 139 | } |
| 140 | |
| 141 | let min = getMinWidth(column.minWidth ?? getDefaultMinWidth?.(index) ?? 0, availableWidth); |
| 142 | let max = getMaxWidth(column.maxWidth, availableWidth); |
| 143 | let hypotheticalMainSize = Math.max(min, Math.min(baseSize, max)); |
| 144 | |
| 145 | // 9.7.1 |
| 146 | // We don't make use of flex basis, it's always 0, so we are always in 'grow' mode. |
| 147 | // 9.7.2 |
| 148 | if (frozen) { |
| 149 | targetMainSize = hypotheticalMainSize; |
| 150 | } else if (baseSize > hypotheticalMainSize) { |
| 151 | frozen = true; |
| 152 | targetMainSize = hypotheticalMainSize; |
| 153 | } |
| 154 | |
| 155 | // 9.7.3 |
| 156 | if (!frozen) { |
| 157 | hasNonFrozenItems = true; |
| 158 | } |
| 159 | return { |
| 160 | frozen, |
| 161 | baseSize, |
| 162 | hypotheticalMainSize, |
| 163 | min, |
| 164 | max, |
| 165 | flex, |
| 166 | targetMainSize, |
no test coverage detected