handsontable
Version:
Handsontable is a JavaScript Data Grid available for React, Angular and Vue.
59 lines (57 loc) • 1.7 kB
JavaScript
/**
* Traverses the tree nodes and calls a callback when no hidden node is found. The callback
* is called with visual column index then.
*
* @param {TreeNode} node A tree node to traverse.
* @param {Function} callback The callback function which will be called for each node.
*/
export function traverseHiddenNodeColumnIndexes(node, callback) {
node.walkDown(_ref => {
let {
data,
childs
} = _ref;
if (!data.isHidden) {
callback(data.columnIndex);
if (childs.length === 0) {
for (let i = 1; i < data.colspan; i++) {
callback(data.columnIndex + i);
}
}
}
});
}
/**
* A tree helper for retrieving a data from the first child.
*
* @param {TreeNode} node A tree node to check.
* @param {string} propertyName A name of the property whose value you want to get.
* @returns {*}
*/
export function getFirstChildProperty(_ref2, propertyName) {
let {
childs
} = _ref2;
if (childs.length === 0) {
return;
}
return childs[0].data[propertyName];
}
/**
* A tree helper which checks if passed node has the same original colspan as its
* first child. In that case the node is treated as "mirrored" or "reflected" every
* action performed on one of that nodes should be reflected to other "mirrored" node.
*
* In that case nodes A1 and A2 are "reflected"
* +----+----+----+----+
* | A1 | B1 |
* +----+----+----+----+
* | A2 | B2 | B3 |
* +----+----+----+----+.
*
* @param {TreeNode} node A tree node to check.
* @returns {boolean}
*/
export function isNodeReflectsFirstChildColspan(node) {
return getFirstChildProperty(node, 'origColspan') === node.data.origColspan;
}