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add {subtree: "retain"} flag to allow skipping diff from app space

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This commit is contained in:
Leo Horie 2014-04-06 15:20:21 -04:00
parent c4494bf2ce
commit fcf77dfa44
12 changed files with 169 additions and 11 deletions
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8
mithril.js
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@ -33,7 +33,11 @@ new function(window) {
return cell
}
function build(parent, data, cached) {
if (data === null || data === undefined) return
if (data === null || data === undefined) {
if (cached) clear(cached.nodes)
return
}
if (data.subtree === "retain") return
var cachedType = type.call(cached), dataType = type.call(data)
if (cachedType != dataType) {
@ -59,8 +63,8 @@ new function(window) {
}
}
else if (dataType == "[object Object]") {
if (typeof data.tag != "string") return
if (data.tag != cached.tag || Object.keys(data.attrs).join() != Object.keys(cached.attrs).join()) clear(cached.nodes)
if (typeof data.tag != "string") return
var node, isNew = cached.nodes.length === 0
if (isNew) {