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@ -492,7 +492,7 @@ BI.Layout = BI.inherit(BI.Widget, {
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} |
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}, |
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updateChildren: function (oldCh, newCh) { |
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updateChildren: function (oldCh, newCh, context) { |
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var self = this; |
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var oldStartIdx = 0, newStartIdx = 0; |
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var oldEndIdx = oldCh.length - 1; |
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@ -546,7 +546,7 @@ BI.Layout = BI.inherit(BI.Widget, {
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} else { |
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var sameOldVnode = findOldVnode(oldCh, newStartVnode, oldStartIdx, oldEndIdx); |
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if (BI.isNull(sameOldVnode[0])) { // 不存在就把新的放到左边
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var node = addNode(newStartVnode, newStartIdx); |
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var node = addNode(newStartVnode, newStartIdx, context); |
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insertBefore(node, oldStartVnode); |
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} else { // 如果新节点在旧节点区间中存在就复用一下
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var sameOldIndex = sameOldVnode[1]; |
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@ -561,7 +561,7 @@ BI.Layout = BI.inherit(BI.Widget, {
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} |
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if (oldStartIdx > oldEndIdx) { |
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before = BI.isNull(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1]; |
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addVnodes(before, newCh, newStartIdx, newEndIdx); |
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addVnodes(before, newCh, newStartIdx, newEndIdx, context); |
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} else if (newStartIdx > newEndIdx) { |
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removeVnodes(oldCh, oldStartIdx, oldEndIdx); |
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} |
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@ -586,15 +586,15 @@ BI.Layout = BI.inherit(BI.Widget, {
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} |
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} |
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function addNode (vnode, index) { |
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function addNode (vnode, index, context) { |
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var opt = self._getOptions(vnode); |
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var key = opt.key == null ? index : opt.key; |
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return children[key] = self._newElement(index, vnode); |
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return children[key] = self._newElement(index, vnode, context); |
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} |
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function addVnodes (before, vnodes, startIdx, endIdx) { |
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function addVnodes (before, vnodes, startIdx, endIdx, context) { |
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for (; startIdx <= endIdx; ++startIdx) { |
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var node = addNode(vnodes[startIdx], startIdx); |
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var node = addNode(vnodes[startIdx], startIdx, context); |
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insertBefore(node, before, false, startIdx); |
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} |
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} |
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@ -662,16 +662,18 @@ BI.Layout = BI.inherit(BI.Widget, {
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update: function (opt) { |
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var o = this.options; |
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var items = opt.items || []; |
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var context = opt.context; |
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var oldItems = o.items; |
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this.options.items = items; |
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return this.updateChildren(oldItems, items); |
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return this.updateChildren(oldItems, items, context); |
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}, |
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stroke: function (items) { |
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stroke: function (items, options) { |
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options = options || {}; |
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var self = this; |
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BI.each(items, function (i, item) { |
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if (item) { |
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self._addElement(i, item); |
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self._addElement(i, item, options.context); |
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} |
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}); |
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}, |
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@ -702,14 +704,18 @@ BI.Layout = BI.inherit(BI.Widget, {
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this.options.items = []; |
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}, |
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populate: function (items) { |
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populate: function (items, options) { |
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items = items || []; |
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options = options || {}; |
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if (this._isMounted) { |
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this.update({items: items}); |
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this.update({ |
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items: items, |
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context: options.context |
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}); |
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return; |
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} |
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this.options.items = items; |
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this.stroke(items); |
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this.stroke(items, options); |
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}, |
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resize: function () { |
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