ipc-app/components/ly-tree/tool/util.js

116 lines
2.4 KiB
JavaScript

export const NODE_KEY = '$treeNodeId';
export const markNodeData = function(node, data) {
if (!data || data[NODE_KEY]) return;
Object.defineProperty(data, NODE_KEY, {
value: node.id,
enumerable: false,
configurable: false,
writable: false
});
};
export const getNodeKey = function(key, data) {
if (!data) return null;
if (!key) return data[NODE_KEY];
return data[key];
};
export const objectAssign = function(target) {
for (let i = 1, j = arguments.length; i < j; i++) {
let source = arguments[i] || {};
for (let prop in source) {
if (source.hasOwnProperty(prop)) {
let value = source[prop];
if (value !== undefined) {
target[prop] = value;
}
}
}
}
return target;
};
// TODO: use native Array.find, Array.findIndex when IE support is dropped
export const arrayFindIndex = function(arr, pred) {
for (let i = 0; i !== arr.length; ++i) {
if (pred(arr[i])) {
return i;
}
}
return -1;
};
export const getChildState = function(node) {
let all = true;
let none = true;
let allWithoutDisable = true;
for (let i = 0, j = node.length; i < j; i++) {
const n = node[i];
if (n.checked !== true || n.indeterminate) {
all = false;
if (!n.disabled) {
allWithoutDisable = false;
}
}
if (n.checked !== false || n.indeterminate) {
none = false;
}
}
return {
all,
none,
allWithoutDisable,
half: !all && !none
};
};
export const reInitChecked = function(node) {
if (!node || node.childNodesId.length === 0) return;
let childNodes = node.getChildNodes(node.childNodesId);
const {
all,
none,
half
} = getChildState(childNodes);
if (all) {
node.checked = true;
node.indeterminate = false;
} else if (half) {
node.checked = false;
node.indeterminate = true;
} else if (none) {
node.checked = false;
node.indeterminate = false;
}
let parent = node.getParent(node.parentId);
if (!parent || parent.level === 0) return;
if (!node.store().checkStrictly) {
reInitChecked(parent);
}
};
export const getPropertyFromData = function(node, prop) {
const props = node.store().props;
const data = node.data || {};
const config = props[prop];
if (typeof config === 'function') {
return config(data, node);
} else if (typeof config === 'string') {
return data[config];
} else if (typeof config === 'undefined') {
const dataProp = data[prop];
return dataProp === undefined ? '' : dataProp;
}
};
export const isNull = function(v) {
return v === undefined || v === null || v === '';
}