77 lines
1.5 KiB
JavaScript
77 lines
1.5 KiB
JavaScript
exports.removeElement = function(elem){
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if(elem.prev) elem.prev.next = elem.next;
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if(elem.next) elem.next.prev = elem.prev;
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if(elem.parent){
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var childs = elem.parent.children;
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childs.splice(childs.lastIndexOf(elem), 1);
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}
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};
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exports.replaceElement = function(elem, replacement){
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var prev = replacement.prev = elem.prev;
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if(prev){
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prev.next = replacement;
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}
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var next = replacement.next = elem.next;
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if(next){
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next.prev = replacement;
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}
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var parent = replacement.parent = elem.parent;
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if(parent){
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var childs = parent.children;
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childs[childs.lastIndexOf(elem)] = replacement;
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}
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};
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exports.appendChild = function(elem, child){
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child.parent = elem;
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if(elem.children.push(child) !== 1){
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var sibling = elem.children[elem.children.length - 2];
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sibling.next = child;
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child.prev = sibling;
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child.next = null;
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}
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};
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exports.append = function(elem, next){
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var parent = elem.parent,
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currNext = elem.next;
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next.next = currNext;
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next.prev = elem;
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elem.next = next;
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next.parent = parent;
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if(currNext){
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currNext.prev = next;
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if(parent){
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var childs = parent.children;
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childs.splice(childs.lastIndexOf(currNext), 0, next);
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}
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} else if(parent){
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parent.children.push(next);
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}
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};
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exports.prepend = function(elem, prev){
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var parent = elem.parent;
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if(parent){
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var childs = parent.children;
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childs.splice(childs.lastIndexOf(elem), 0, prev);
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}
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if(elem.prev){
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elem.prev.next = prev;
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}
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prev.parent = parent;
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prev.prev = elem.prev;
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prev.next = elem;
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elem.prev = prev;
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};
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