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fix node index displacement by null/undefined nodes

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This commit is contained in:
Leo Horie 2014-04-20 21:48:33 -04:00
parent f589a33842
commit a425bbca88
10 changed files with 56 additions and 20 deletions
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27
archive/v0.1.9/mithril-tests.js
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@ -48,18 +48,18 @@ Mithril = m = new function app(window) {
if (dataType == "[object Array]") {
var nodes = [], intact = cached.length === data.length, subArrayCount = 0
for (var i = 0; i < data.length; i++) {
var item = build(parent, data[i], cached[i], shouldReattach, index + subArrayCount || subArrayCount, namespace)
for (var i = 0, cacheCount = 0; i < data.length; i++) {
var item = build(parent, data[i], cached[cacheCount], shouldReattach, index + subArrayCount || subArrayCount, namespace)
if (item === undefined) continue
if (!item.nodes.intact) intact = false
subArrayCount += item instanceof Array ? item.length : 1
cached[i] = item
cached[cacheCount++] = item
}
if (!intact) {
for (var i = 0; i < data.length; i++) if (cached[i] !== undefined) nodes = nodes.concat(cached[i].nodes)
for (var i = nodes.length, node; node = cached.nodes[i]; i++) if (node.parentNode !== null) node.parentNode.removeChild(node)
for (var i = cached.nodes.length, node; node = nodes[i]; i++) if (node.parentNode === null) parent.appendChild(node)
cached.length = data.length
if (data.length < cached.length) cached.length = data.length
cached.nodes = nodes
}
}
@ -498,9 +498,12 @@ mock.window = new function() {
replaceChild: window.document.replaceChild,
insertBefore: function(node, reference) {
node.parentNode = this
var index = this.childNodes.indexOf(reference)
if (index < 0) this.childNodes.push(node)
else this.childNodes.splice(index, 0, node)
var referenceIndex = this.childNodes.indexOf(reference)
if (referenceIndex < 0) this.childNodes.push(node)
else {
var index = this.childNodes.indexOf(node)
this.childNodes.splice(referenceIndex, index < 0 ? 0 : 1, node)
}
},
insertAdjacentHTML: function(position, html) {
//todo: accept markup
@ -540,6 +543,8 @@ mock.window = new function() {
oldChild.parentNode = null
}
window.document.appendChild = function(child) {
var index = this.childNodes.indexOf(child)
if (index > -1) this.childNodes.splice(index, 1)
this.childNodes.push(child)
child.parentNode = this
}
@ -899,6 +904,14 @@ function testMithril(mock) {
var elementAfter = root.childNodes[0]
return elementBefore !== elementAfter
})
test(function() {
//https://github.com/lhorie/mithril.js/issues/56
var root = mock.document.createElement("div")
m.render(root, [null, "foo"])
m.render(root, ["bar"])
console.log(root.childNodes)
return root.childNodes.length == 1
})
//end m.render
//m.redraw