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整理代码

es6
guy 3 years ago
parent
commit
94eaec6ec3
  1. 21
      src/core/wrapper/layout.js

21
src/core/wrapper/layout.js

@ -440,19 +440,19 @@ BI.Layout = BI.inherit(BI.Widget, {
newStartVnode = newCh[++newStartIdx];
} else {
var sameOldVnode = findOldVnode(oldCh, newStartVnode, oldStartIdx, oldEndIdx);
if (BI.isNull(sameOldVnode)) { // 不存在就把新的放到左边
if (BI.isNull(sameOldVnode[0])) { // 不存在就把新的放到左边
delete self._children[self._getChildName(newStartIdx)];
var node = addNode(newStartVnode, newStartIdx);
insertBefore(node, oldStartVnode);
} else { // 如果新节点在旧节点区间中存在就复用一下
BI.each(oldCh, function (index, child) {
if (child && sameVnode(child, newStartVnode)) {
updated = self.patchItem(sameOldVnode, newStartVnode, index, index) || updated;
children[sameOldVnode.key == null ? index : sameOldVnode.key] = self._children[self._getChildName(index)];
oldCh[index] = undefined;
insertBefore(sameOldVnode, oldStartVnode);
var sameOldIndex = sameOldVnode[1];
updated = self.patchItem(sameOldVnode[0], newStartVnode, sameOldIndex, newStartIdx) || updated;
children[sameOldVnode[0].key == null ? newStartIdx : sameOldVnode[0].key] = self._children[self._getChildName(newStartIdx)] = self._children[self._getChildName(sameOldIndex)];
if (newStartIdx !== sameOldIndex) {
delete self._children[self._getChildName(sameOldIndex)];
}
});
oldCh[sameOldIndex] = undefined;
insertBefore(sameOldVnode[0], oldStartVnode);
}
newStartVnode = newCh[++newStartIdx];
}
@ -531,13 +531,14 @@ BI.Layout = BI.inherit(BI.Widget, {
}
function findOldVnode (vnodes, vNode, beginIdx, endIdx) {
var i, found;
var i, found, findIndex;
for (i = beginIdx; i <= endIdx; ++i) {
if (vnodes[i] && sameVnode(vnodes[i], vNode)) {
found = vnodes[i];
findIndex = i;
}
}
return found;
return [found, findIndex];
}
return updated;

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