diff options
| author | Shipwreckt <me@shipwreckt.co.uk> | 2025-10-31 20:02:14 +0000 |
|---|---|---|
| committer | Shipwreckt <me@shipwreckt.co.uk> | 2025-10-31 20:02:14 +0000 |
| commit | 7a52ddeba2a68388b544f529d2d92104420f77b0 (patch) | |
| tree | 15ddd47457a2cb4a96060747437d36474e4f6b4e /node_modules/morphdom/dist | |
| parent | 53d6ae2b5568437afa5e4995580a3fb679b7b91b (diff) | |
Changed from static to 11ty!
Diffstat (limited to 'node_modules/morphdom/dist')
| -rw-r--r-- | node_modules/morphdom/dist/morphdom-esm.js | 774 | ||||
| -rw-r--r-- | node_modules/morphdom/dist/morphdom-factory.js | 710 | ||||
| -rw-r--r-- | node_modules/morphdom/dist/morphdom-umd.js | 782 | ||||
| -rw-r--r-- | node_modules/morphdom/dist/morphdom-umd.min.js | 1 | ||||
| -rw-r--r-- | node_modules/morphdom/dist/morphdom.js | 776 |
5 files changed, 3043 insertions, 0 deletions
diff --git a/node_modules/morphdom/dist/morphdom-esm.js b/node_modules/morphdom/dist/morphdom-esm.js new file mode 100644 index 0000000..10a9605 --- /dev/null +++ b/node_modules/morphdom/dist/morphdom-esm.js @@ -0,0 +1,774 @@ +var DOCUMENT_FRAGMENT_NODE = 11; + +function morphAttrs(fromNode, toNode) { + var toNodeAttrs = toNode.attributes; + var attr; + var attrName; + var attrNamespaceURI; + var attrValue; + var fromValue; + + // document-fragments dont have attributes so lets not do anything + if (toNode.nodeType === DOCUMENT_FRAGMENT_NODE || fromNode.nodeType === DOCUMENT_FRAGMENT_NODE) { + return; + } + + // update attributes on original DOM element + for (var i = toNodeAttrs.length - 1; i >= 0; i--) { + attr = toNodeAttrs[i]; + attrName = attr.name; + attrNamespaceURI = attr.namespaceURI; + attrValue = attr.value; + + if (attrNamespaceURI) { + attrName = attr.localName || attrName; + fromValue = fromNode.getAttributeNS(attrNamespaceURI, attrName); + + if (fromValue !== attrValue) { + if (attr.prefix === 'xmlns'){ + attrName = attr.name; // It's not allowed to set an attribute with the XMLNS namespace without specifying the `xmlns` prefix + } + fromNode.setAttributeNS(attrNamespaceURI, attrName, attrValue); + } + } else { + fromValue = fromNode.getAttribute(attrName); + + if (fromValue !== attrValue) { + fromNode.setAttribute(attrName, attrValue); + } + } + } + + // Remove any extra attributes found on the original DOM element that + // weren't found on the target element. + var fromNodeAttrs = fromNode.attributes; + + for (var d = fromNodeAttrs.length - 1; d >= 0; d--) { + attr = fromNodeAttrs[d]; + attrName = attr.name; + attrNamespaceURI = attr.namespaceURI; + + if (attrNamespaceURI) { + attrName = attr.localName || attrName; + + if (!toNode.hasAttributeNS(attrNamespaceURI, attrName)) { + fromNode.removeAttributeNS(attrNamespaceURI, attrName); + } + } else { + if (!toNode.hasAttribute(attrName)) { + fromNode.removeAttribute(attrName); + } + } + } +} + +var range; // Create a range object for efficently rendering strings to elements. +var NS_XHTML = 'http://www.w3.org/1999/xhtml'; + +var doc = typeof document === 'undefined' ? undefined : document; +var HAS_TEMPLATE_SUPPORT = !!doc && 'content' in doc.createElement('template'); +var HAS_RANGE_SUPPORT = !!doc && doc.createRange && 'createContextualFragment' in doc.createRange(); + +function createFragmentFromTemplate(str) { + var template = doc.createElement('template'); + template.innerHTML = str; + return template.content.childNodes[0]; +} + +function createFragmentFromRange(str) { + if (!range) { + range = doc.createRange(); + range.selectNode(doc.body); + } + + var fragment = range.createContextualFragment(str); + return fragment.childNodes[0]; +} + +function createFragmentFromWrap(str) { + var fragment = doc.createElement('body'); + fragment.innerHTML = str; + return fragment.childNodes[0]; +} + +/** + * This is about the same + * var html = new DOMParser().parseFromString(str, 'text/html'); + * return html.body.firstChild; + * + * @method toElement + * @param {String} str + */ +function toElement(str) { + str = str.trim(); + if (HAS_TEMPLATE_SUPPORT) { + // avoid restrictions on content for things like `<tr><th>Hi</th></tr>` which + // createContextualFragment doesn't support + // <template> support not available in IE + return createFragmentFromTemplate(str); + } else if (HAS_RANGE_SUPPORT) { + return createFragmentFromRange(str); + } + + return createFragmentFromWrap(str); +} + +/** + * Returns true if two node's names are the same. + * + * NOTE: We don't bother checking `namespaceURI` because you will never find two HTML elements with the same + * nodeName and different namespace URIs. + * + * @param {Element} a + * @param {Element} b The target element + * @return {boolean} + */ +function compareNodeNames(fromEl, toEl) { + var fromNodeName = fromEl.nodeName; + var toNodeName = toEl.nodeName; + var fromCodeStart, toCodeStart; + + if (fromNodeName === toNodeName) { + return true; + } + + fromCodeStart = fromNodeName.charCodeAt(0); + toCodeStart = toNodeName.charCodeAt(0); + + // If the target element is a virtual DOM node or SVG node then we may + // need to normalize the tag name before comparing. Normal HTML elements that are + // in the "http://www.w3.org/1999/xhtml" + // are converted to upper case + if (fromCodeStart <= 90 && toCodeStart >= 97) { // from is upper and to is lower + return fromNodeName === toNodeName.toUpperCase(); + } else if (toCodeStart <= 90 && fromCodeStart >= 97) { // to is upper and from is lower + return toNodeName === fromNodeName.toUpperCase(); + } else { + return false; + } +} + +/** + * Create an element, optionally with a known namespace URI. + * + * @param {string} name the element name, e.g. 'div' or 'svg' + * @param {string} [namespaceURI] the element's namespace URI, i.e. the value of + * its `xmlns` attribute or its inferred namespace. + * + * @return {Element} + */ +function createElementNS(name, namespaceURI) { + return !namespaceURI || namespaceURI === NS_XHTML ? + doc.createElement(name) : + doc.createElementNS(namespaceURI, name); +} + +/** + * Copies the children of one DOM element to another DOM element + */ +function moveChildren(fromEl, toEl) { + var curChild = fromEl.firstChild; + while (curChild) { + var nextChild = curChild.nextSibling; + toEl.appendChild(curChild); + curChild = nextChild; + } + return toEl; +} + +function syncBooleanAttrProp(fromEl, toEl, name) { + if (fromEl[name] !== toEl[name]) { + fromEl[name] = toEl[name]; + if (fromEl[name]) { + fromEl.setAttribute(name, ''); + } else { + fromEl.removeAttribute(name); + } + } +} + +var specialElHandlers = { + OPTION: function(fromEl, toEl) { + var parentNode = fromEl.parentNode; + if (parentNode) { + var parentName = parentNode.nodeName.toUpperCase(); + if (parentName === 'OPTGROUP') { + parentNode = parentNode.parentNode; + parentName = parentNode && parentNode.nodeName.toUpperCase(); + } + if (parentName === 'SELECT' && !parentNode.hasAttribute('multiple')) { + if (fromEl.hasAttribute('selected') && !toEl.selected) { + // Workaround for MS Edge bug where the 'selected' attribute can only be + // removed if set to a non-empty value: + // https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/12087679/ + fromEl.setAttribute('selected', 'selected'); + fromEl.removeAttribute('selected'); + } + // We have to reset select element's selectedIndex to -1, otherwise setting + // fromEl.selected using the syncBooleanAttrProp below has no effect. + // The correct selectedIndex will be set in the SELECT special handler below. + parentNode.selectedIndex = -1; + } + } + syncBooleanAttrProp(fromEl, toEl, 'selected'); + }, + /** + * The "value" attribute is special for the <input> element since it sets + * the initial value. Changing the "value" attribute without changing the + * "value" property will have no effect since it is only used to the set the + * initial value. Similar for the "checked" attribute, and "disabled". + */ + INPUT: function(fromEl, toEl) { + syncBooleanAttrProp(fromEl, toEl, 'checked'); + syncBooleanAttrProp(fromEl, toEl, 'disabled'); + + if (fromEl.value !== toEl.value) { + fromEl.value = toEl.value; + } + + if (!toEl.hasAttribute('value')) { + fromEl.removeAttribute('value'); + } + }, + + TEXTAREA: function(fromEl, toEl) { + var newValue = toEl.value; + if (fromEl.value !== newValue) { + fromEl.value = newValue; + } + + var firstChild = fromEl.firstChild; + if (firstChild) { + // Needed for IE. Apparently IE sets the placeholder as the + // node value and vise versa. This ignores an empty update. + var oldValue = firstChild.nodeValue; + + if (oldValue == newValue || (!newValue && oldValue == fromEl.placeholder)) { + return; + } + + firstChild.nodeValue = newValue; + } + }, + SELECT: function(fromEl, toEl) { + if (!toEl.hasAttribute('multiple')) { + var selectedIndex = -1; + var i = 0; + // We have to loop through children of fromEl, not toEl since nodes can be moved + // from toEl to fromEl directly when morphing. + // At the time this special handler is invoked, all children have already been morphed + // and appended to / removed from fromEl, so using fromEl here is safe and correct. + var curChild = fromEl.firstChild; + var optgroup; + var nodeName; + while(curChild) { + nodeName = curChild.nodeName && curChild.nodeName.toUpperCase(); + if (nodeName === 'OPTGROUP') { + optgroup = curChild; + curChild = optgroup.firstChild; + // handle empty optgroups + if (!curChild) { + curChild = optgroup.nextSibling; + optgroup = null; + } + } else { + if (nodeName === 'OPTION') { + if (curChild.hasAttribute('selected')) { + selectedIndex = i; + break; + } + i++; + } + curChild = curChild.nextSibling; + if (!curChild && optgroup) { + curChild = optgroup.nextSibling; + optgroup = null; + } + } + } + + fromEl.selectedIndex = selectedIndex; + } + } +}; + +var ELEMENT_NODE = 1; +var DOCUMENT_FRAGMENT_NODE$1 = 11; +var TEXT_NODE = 3; +var COMMENT_NODE = 8; + +function noop() {} + +function defaultGetNodeKey(node) { + if (node) { + return (node.getAttribute && node.getAttribute('id')) || node.id; + } +} + +function morphdomFactory(morphAttrs) { + + return function morphdom(fromNode, toNode, options) { + if (!options) { + options = {}; + } + + if (typeof toNode === 'string') { + if (fromNode.nodeName === '#document' || fromNode.nodeName === 'HTML' || fromNode.nodeName === 'BODY') { + var toNodeHtml = toNode; + toNode = doc.createElement('html'); + toNode.innerHTML = toNodeHtml; + } else { + toNode = toElement(toNode); + } + } else if (toNode.nodeType === DOCUMENT_FRAGMENT_NODE$1) { + toNode = toNode.firstElementChild; + } + + var getNodeKey = options.getNodeKey || defaultGetNodeKey; + var onBeforeNodeAdded = options.onBeforeNodeAdded || noop; + var onNodeAdded = options.onNodeAdded || noop; + var onBeforeElUpdated = options.onBeforeElUpdated || noop; + var onElUpdated = options.onElUpdated || noop; + var onBeforeNodeDiscarded = options.onBeforeNodeDiscarded || noop; + var onNodeDiscarded = options.onNodeDiscarded || noop; + var onBeforeElChildrenUpdated = options.onBeforeElChildrenUpdated || noop; + var skipFromChildren = options.skipFromChildren || noop; + var addChild = options.addChild || function(parent, child){ return parent.appendChild(child); }; + var childrenOnly = options.childrenOnly === true; + + // This object is used as a lookup to quickly find all keyed elements in the original DOM tree. + var fromNodesLookup = Object.create(null); + var keyedRemovalList = []; + + function addKeyedRemoval(key) { + keyedRemovalList.push(key); + } + + function walkDiscardedChildNodes(node, skipKeyedNodes) { + if (node.nodeType === ELEMENT_NODE) { + var curChild = node.firstChild; + while (curChild) { + + var key = undefined; + + if (skipKeyedNodes && (key = getNodeKey(curChild))) { + // If we are skipping keyed nodes then we add the key + // to a list so that it can be handled at the very end. + addKeyedRemoval(key); + } else { + // Only report the node as discarded if it is not keyed. We do this because + // at the end we loop through all keyed elements that were unmatched + // and then discard them in one final pass. + onNodeDiscarded(curChild); + if (curChild.firstChild) { + walkDiscardedChildNodes(curChild, skipKeyedNodes); + } + } + + curChild = curChild.nextSibling; + } + } + } + + /** + * Removes a DOM node out of the original DOM + * + * @param {Node} node The node to remove + * @param {Node} parentNode The nodes parent + * @param {Boolean} skipKeyedNodes If true then elements with keys will be skipped and not discarded. + * @return {undefined} + */ + function removeNode(node, parentNode, skipKeyedNodes) { + if (onBeforeNodeDiscarded(node) === false) { + return; + } + + if (parentNode) { + parentNode.removeChild(node); + } + + onNodeDiscarded(node); + walkDiscardedChildNodes(node, skipKeyedNodes); + } + + // // TreeWalker implementation is no faster, but keeping this around in case this changes in the future + // function indexTree(root) { + // var treeWalker = document.createTreeWalker( + // root, + // NodeFilter.SHOW_ELEMENT); + // + // var el; + // while((el = treeWalker.nextNode())) { + // var key = getNodeKey(el); + // if (key) { + // fromNodesLookup[key] = el; + // } + // } + // } + + // // NodeIterator implementation is no faster, but keeping this around in case this changes in the future + // + // function indexTree(node) { + // var nodeIterator = document.createNodeIterator(node, NodeFilter.SHOW_ELEMENT); + // var el; + // while((el = nodeIterator.nextNode())) { + // var key = getNodeKey(el); + // if (key) { + // fromNodesLookup[key] = el; + // } + // } + // } + + function indexTree(node) { + if (node.nodeType === ELEMENT_NODE || node.nodeType === DOCUMENT_FRAGMENT_NODE$1) { + var curChild = node.firstChild; + while (curChild) { + var key = getNodeKey(curChild); + if (key) { + fromNodesLookup[key] = curChild; + } + + // Walk recursively + indexTree(curChild); + + curChild = curChild.nextSibling; + } + } + } + + indexTree(fromNode); + + function handleNodeAdded(el) { + onNodeAdded(el); + + var curChild = el.firstChild; + while (curChild) { + var nextSibling = curChild.nextSibling; + + var key = getNodeKey(curChild); + if (key) { + var unmatchedFromEl = fromNodesLookup[key]; + // if we find a duplicate #id node in cache, replace `el` with cache value + // and morph it to the child node. + if (unmatchedFromEl && compareNodeNames(curChild, unmatchedFromEl)) { + curChild.parentNode.replaceChild(unmatchedFromEl, curChild); + morphEl(unmatchedFromEl, curChild); + } else { + handleNodeAdded(curChild); + } + } else { + // recursively call for curChild and it's children to see if we find something in + // fromNodesLookup + handleNodeAdded(curChild); + } + + curChild = nextSibling; + } + } + + function cleanupFromEl(fromEl, curFromNodeChild, curFromNodeKey) { + // We have processed all of the "to nodes". If curFromNodeChild is + // non-null then we still have some from nodes left over that need + // to be removed + while (curFromNodeChild) { + var fromNextSibling = curFromNodeChild.nextSibling; + if ((curFromNodeKey = getNodeKey(curFromNodeChild))) { + // Since the node is keyed it might be matched up later so we defer + // the actual removal to later + addKeyedRemoval(curFromNodeKey); + } else { + // NOTE: we skip nested keyed nodes from being removed since there is + // still a chance they will be matched up later + removeNode(curFromNodeChild, fromEl, true /* skip keyed nodes */); + } + curFromNodeChild = fromNextSibling; + } + } + + function morphEl(fromEl, toEl, childrenOnly) { + var toElKey = getNodeKey(toEl); + + if (toElKey) { + // If an element with an ID is being morphed then it will be in the final + // DOM so clear it out of the saved elements collection + delete fromNodesLookup[toElKey]; + } + + if (!childrenOnly) { + // optional + var beforeUpdateResult = onBeforeElUpdated(fromEl, toEl); + if (beforeUpdateResult === false) { + return; + } else if (beforeUpdateResult instanceof HTMLElement) { + fromEl = beforeUpdateResult; + // reindex the new fromEl in case it's not in the same + // tree as the original fromEl + // (Phoenix LiveView sometimes returns a cloned tree, + // but keyed lookups would still point to the original tree) + indexTree(fromEl); + } + + // update attributes on original DOM element first + morphAttrs(fromEl, toEl); + // optional + onElUpdated(fromEl); + + if (onBeforeElChildrenUpdated(fromEl, toEl) === false) { + return; + } + } + + if (fromEl.nodeName !== 'TEXTAREA') { + morphChildren(fromEl, toEl); + } else { + specialElHandlers.TEXTAREA(fromEl, toEl); + } + } + + function morphChildren(fromEl, toEl) { + var skipFrom = skipFromChildren(fromEl, toEl); + var curToNodeChild = toEl.firstChild; + var curFromNodeChild = fromEl.firstChild; + var curToNodeKey; + var curFromNodeKey; + + var fromNextSibling; + var toNextSibling; + var matchingFromEl; + + // walk the children + outer: while (curToNodeChild) { + toNextSibling = curToNodeChild.nextSibling; + curToNodeKey = getNodeKey(curToNodeChild); + + // walk the fromNode children all the way through + while (!skipFrom && curFromNodeChild) { + fromNextSibling = curFromNodeChild.nextSibling; + + if (curToNodeChild.isSameNode && curToNodeChild.isSameNode(curFromNodeChild)) { + curToNodeChild = toNextSibling; + curFromNodeChild = fromNextSibling; + continue outer; + } + + curFromNodeKey = getNodeKey(curFromNodeChild); + + var curFromNodeType = curFromNodeChild.nodeType; + + // this means if the curFromNodeChild doesnt have a match with the curToNodeChild + var isCompatible = undefined; + + if (curFromNodeType === curToNodeChild.nodeType) { + if (curFromNodeType === ELEMENT_NODE) { + // Both nodes being compared are Element nodes + + if (curToNodeKey) { + // The target node has a key so we want to match it up with the correct element + // in the original DOM tree + if (curToNodeKey !== curFromNodeKey) { + // The current element in the original DOM tree does not have a matching key so + // let's check our lookup to see if there is a matching element in the original + // DOM tree + if ((matchingFromEl = fromNodesLookup[curToNodeKey])) { + if (fromNextSibling === matchingFromEl) { + // Special case for single element removals. To avoid removing the original + // DOM node out of the tree (since that can break CSS transitions, etc.), + // we will instead discard the current node and wait until the next + // iteration to properly match up the keyed target element with its matching + // element in the original tree + isCompatible = false; + } else { + // We found a matching keyed element somewhere in the original DOM tree. + // Let's move the original DOM node into the current position and morph + // it. + + // NOTE: We use insertBefore instead of replaceChild because we want to go through + // the `removeNode()` function for the node that is being discarded so that + // all lifecycle hooks are correctly invoked + fromEl.insertBefore(matchingFromEl, curFromNodeChild); + + // fromNextSibling = curFromNodeChild.nextSibling; + + if (curFromNodeKey) { + // Since the node is keyed it might be matched up later so we defer + // the actual removal to later + addKeyedRemoval(curFromNodeKey); + } else { + // NOTE: we skip nested keyed nodes from being removed since there is + // still a chance they will be matched up later + removeNode(curFromNodeChild, fromEl, true /* skip keyed nodes */); + } + + curFromNodeChild = matchingFromEl; + curFromNodeKey = getNodeKey(curFromNodeChild); + } + } else { + // The nodes are not compatible since the "to" node has a key and there + // is no matching keyed node in the source tree + isCompatible = false; + } + } + } else if (curFromNodeKey) { + // The original has a key + isCompatible = false; + } + + isCompatible = isCompatible !== false && compareNodeNames(curFromNodeChild, curToNodeChild); + if (isCompatible) { + // We found compatible DOM elements so transform + // the current "from" node to match the current + // target DOM node. + // MORPH + morphEl(curFromNodeChild, curToNodeChild); + } + + } else if (curFromNodeType === TEXT_NODE || curFromNodeType == COMMENT_NODE) { + // Both nodes being compared are Text or Comment nodes + isCompatible = true; + // Simply update nodeValue on the original node to + // change the text value + if (curFromNodeChild.nodeValue !== curToNodeChild.nodeValue) { + curFromNodeChild.nodeValue = curToNodeChild.nodeValue; + } + + } + } + + if (isCompatible) { + // Advance both the "to" child and the "from" child since we found a match + // Nothing else to do as we already recursively called morphChildren above + curToNodeChild = toNextSibling; + curFromNodeChild = fromNextSibling; + continue outer; + } + + // No compatible match so remove the old node from the DOM and continue trying to find a + // match in the original DOM. However, we only do this if the from node is not keyed + // since it is possible that a keyed node might match up with a node somewhere else in the + // target tree and we don't want to discard it just yet since it still might find a + // home in the final DOM tree. After everything is done we will remove any keyed nodes + // that didn't find a home + if (curFromNodeKey) { + // Since the node is keyed it might be matched up later so we defer + // the actual removal to later + addKeyedRemoval(curFromNodeKey); + } else { + // NOTE: we skip nested keyed nodes from being removed since there is + // still a chance they will be matched up later + removeNode(curFromNodeChild, fromEl, true /* skip keyed nodes */); + } + + curFromNodeChild = fromNextSibling; + } // END: while(curFromNodeChild) {} + + // If we got this far then we did not find a candidate match for + // our "to node" and we exhausted all of the children "from" + // nodes. Therefore, we will just append the current "to" node + // to the end + if (curToNodeKey && (matchingFromEl = fromNodesLookup[curToNodeKey]) && compareNodeNames(matchingFromEl, curToNodeChild)) { + // MORPH + if(!skipFrom){ addChild(fromEl, matchingFromEl); } + morphEl(matchingFromEl, curToNodeChild); + } else { + var onBeforeNodeAddedResult = onBeforeNodeAdded(curToNodeChild); + if (onBeforeNodeAddedResult !== false) { + if (onBeforeNodeAddedResult) { + curToNodeChild = onBeforeNodeAddedResult; + } + + if (curToNodeChild.actualize) { + curToNodeChild = curToNodeChild.actualize(fromEl.ownerDocument || doc); + } + addChild(fromEl, curToNodeChild); + handleNodeAdded(curToNodeChild); + } + } + + curToNodeChild = toNextSibling; + curFromNodeChild = fromNextSibling; + } + + cleanupFromEl(fromEl, curFromNodeChild, curFromNodeKey); + + var specialElHandler = specialElHandlers[fromEl.nodeName]; + if (specialElHandler) { + specialElHandler(fromEl, toEl); + } + } // END: morphChildren(...) + + var morphedNode = fromNode; + var morphedNodeType = morphedNode.nodeType; + var toNodeType = toNode.nodeType; + + if (!childrenOnly) { + // Handle the case where we are given two DOM nodes that are not + // compatible (e.g. <div> --> <span> or <div> --> TEXT) + if (morphedNodeType === ELEMENT_NODE) { + if (toNodeType === ELEMENT_NODE) { + if (!compareNodeNames(fromNode, toNode)) { + onNodeDiscarded(fromNode); + morphedNode = moveChildren(fromNode, createElementNS(toNode.nodeName, toNode.namespaceURI)); + } + } else { + // Going from an element node to a text node + morphedNode = toNode; + } + } else if (morphedNodeType === TEXT_NODE || morphedNodeType === COMMENT_NODE) { // Text or comment node + if (toNodeType === morphedNodeType) { + if (morphedNode.nodeValue !== toNode.nodeValue) { + morphedNode.nodeValue = toNode.nodeValue; + } + + return morphedNode; + } else { + // Text node to something else + morphedNode = toNode; + } + } + } + + if (morphedNode === toNode) { + // The "to node" was not compatible with the "from node" so we had to + // toss out the "from node" and use the "to node" + onNodeDiscarded(fromNode); + } else { + if (toNode.isSameNode && toNode.isSameNode(morphedNode)) { + return; + } + + morphEl(morphedNode, toNode, childrenOnly); + + // We now need to loop over any keyed nodes that might need to be + // removed. We only do the removal if we know that the keyed node + // never found a match. When a keyed node is matched up we remove + // it out of fromNodesLookup and we use fromNodesLookup to determine + // if a keyed node has been matched up or not + if (keyedRemovalList) { + for (var i=0, len=keyedRemovalList.length; i<len; i++) { + var elToRemove = fromNodesLookup[keyedRemovalList[i]]; + if (elToRemove) { + removeNode(elToRemove, elToRemove.parentNode, false); + } + } + } + } + + if (!childrenOnly && morphedNode !== fromNode && fromNode.parentNode) { + if (morphedNode.actualize) { + morphedNode = morphedNode.actualize(fromNode.ownerDocument || doc); + } + // If we had to swap out the from node with a new node because the old + // node was not compatible with the target node then we need to + // replace the old DOM node in the original DOM tree. This is only + // possible if the original DOM node was part of a DOM tree which + // we know is the case if it has a parent node. + fromNode.parentNode.replaceChild(morphedNode, fromNode); + } + + return morphedNode; + }; +} + +var morphdom = morphdomFactory(morphAttrs); + +export default morphdom; diff --git a/node_modules/morphdom/dist/morphdom-factory.js b/node_modules/morphdom/dist/morphdom-factory.js new file mode 100644 index 0000000..181d2a6 --- /dev/null +++ b/node_modules/morphdom/dist/morphdom-factory.js @@ -0,0 +1,710 @@ +'use strict'; + +var range; // Create a range object for efficently rendering strings to elements. +var NS_XHTML = 'http://www.w3.org/1999/xhtml'; + +var doc = typeof document === 'undefined' ? undefined : document; +var HAS_TEMPLATE_SUPPORT = !!doc && 'content' in doc.createElement('template'); +var HAS_RANGE_SUPPORT = !!doc && doc.createRange && 'createContextualFragment' in doc.createRange(); + +function createFragmentFromTemplate(str) { + var template = doc.createElement('template'); + template.innerHTML = str; + return template.content.childNodes[0]; +} + +function createFragmentFromRange(str) { + if (!range) { + range = doc.createRange(); + range.selectNode(doc.body); + } + + var fragment = range.createContextualFragment(str); + return fragment.childNodes[0]; +} + +function createFragmentFromWrap(str) { + var fragment = doc.createElement('body'); + fragment.innerHTML = str; + return fragment.childNodes[0]; +} + +/** + * This is about the same + * var html = new DOMParser().parseFromString(str, 'text/html'); + * return html.body.firstChild; + * + * @method toElement + * @param {String} str + */ +function toElement(str) { + str = str.trim(); + if (HAS_TEMPLATE_SUPPORT) { + // avoid restrictions on content for things like `<tr><th>Hi</th></tr>` which + // createContextualFragment doesn't support + // <template> support not available in IE + return createFragmentFromTemplate(str); + } else if (HAS_RANGE_SUPPORT) { + return createFragmentFromRange(str); + } + + return createFragmentFromWrap(str); +} + +/** + * Returns true if two node's names are the same. + * + * NOTE: We don't bother checking `namespaceURI` because you will never find two HTML elements with the same + * nodeName and different namespace URIs. + * + * @param {Element} a + * @param {Element} b The target element + * @return {boolean} + */ +function compareNodeNames(fromEl, toEl) { + var fromNodeName = fromEl.nodeName; + var toNodeName = toEl.nodeName; + var fromCodeStart, toCodeStart; + + if (fromNodeName === toNodeName) { + return true; + } + + fromCodeStart = fromNodeName.charCodeAt(0); + toCodeStart = toNodeName.charCodeAt(0); + + // If the target element is a virtual DOM node or SVG node then we may + // need to normalize the tag name before comparing. Normal HTML elements that are + // in the "http://www.w3.org/1999/xhtml" + // are converted to upper case + if (fromCodeStart <= 90 && toCodeStart >= 97) { // from is upper and to is lower + return fromNodeName === toNodeName.toUpperCase(); + } else if (toCodeStart <= 90 && fromCodeStart >= 97) { // to is upper and from is lower + return toNodeName === fromNodeName.toUpperCase(); + } else { + return false; + } +} + +/** + * Create an element, optionally with a known namespace URI. + * + * @param {string} name the element name, e.g. 'div' or 'svg' + * @param {string} [namespaceURI] the element's namespace URI, i.e. the value of + * its `xmlns` attribute or its inferred namespace. + * + * @return {Element} + */ +function createElementNS(name, namespaceURI) { + return !namespaceURI || namespaceURI === NS_XHTML ? + doc.createElement(name) : + doc.createElementNS(namespaceURI, name); +} + +/** + * Copies the children of one DOM element to another DOM element + */ +function moveChildren(fromEl, toEl) { + var curChild = fromEl.firstChild; + while (curChild) { + var nextChild = curChild.nextSibling; + toEl.appendChild(curChild); + curChild = nextChild; + } + return toEl; +} + +function syncBooleanAttrProp(fromEl, toEl, name) { + if (fromEl[name] !== toEl[name]) { + fromEl[name] = toEl[name]; + if (fromEl[name]) { + fromEl.setAttribute(name, ''); + } else { + fromEl.removeAttribute(name); + } + } +} + +var specialElHandlers = { + OPTION: function(fromEl, toEl) { + var parentNode = fromEl.parentNode; + if (parentNode) { + var parentName = parentNode.nodeName.toUpperCase(); + if (parentName === 'OPTGROUP') { + parentNode = parentNode.parentNode; + parentName = parentNode && parentNode.nodeName.toUpperCase(); + } + if (parentName === 'SELECT' && !parentNode.hasAttribute('multiple')) { + if (fromEl.hasAttribute('selected') && !toEl.selected) { + // Workaround for MS Edge bug where the 'selected' attribute can only be + // removed if set to a non-empty value: + // https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/12087679/ + fromEl.setAttribute('selected', 'selected'); + fromEl.removeAttribute('selected'); + } + // We have to reset select element's selectedIndex to -1, otherwise setting + // fromEl.selected using the syncBooleanAttrProp below has no effect. + // The correct selectedIndex will be set in the SELECT special handler below. + parentNode.selectedIndex = -1; + } + } + syncBooleanAttrProp(fromEl, toEl, 'selected'); + }, + /** + * The "value" attribute is special for the <input> element since it sets + * the initial value. Changing the "value" attribute without changing the + * "value" property will have no effect since it is only used to the set the + * initial value. Similar for the "checked" attribute, and "disabled". + */ + INPUT: function(fromEl, toEl) { + syncBooleanAttrProp(fromEl, toEl, 'checked'); + syncBooleanAttrProp(fromEl, toEl, 'disabled'); + + if (fromEl.value !== toEl.value) { + fromEl.value = toEl.value; + } + + if (!toEl.hasAttribute('value')) { + fromEl.removeAttribute('value'); + } + }, + + TEXTAREA: function(fromEl, toEl) { + var newValue = toEl.value; + if (fromEl.value !== newValue) { + fromEl.value = newValue; + } + + var firstChild = fromEl.firstChild; + if (firstChild) { + // Needed for IE. Apparently IE sets the placeholder as the + // node value and vise versa. This ignores an empty update. + var oldValue = firstChild.nodeValue; + + if (oldValue == newValue || (!newValue && oldValue == fromEl.placeholder)) { + return; + } + + firstChild.nodeValue = newValue; + } + }, + SELECT: function(fromEl, toEl) { + if (!toEl.hasAttribute('multiple')) { + var selectedIndex = -1; + var i = 0; + // We have to loop through children of fromEl, not toEl since nodes can be moved + // from toEl to fromEl directly when morphing. + // At the time this special handler is invoked, all children have already been morphed + // and appended to / removed from fromEl, so using fromEl here is safe and correct. + var curChild = fromEl.firstChild; + var optgroup; + var nodeName; + while(curChild) { + nodeName = curChild.nodeName && curChild.nodeName.toUpperCase(); + if (nodeName === 'OPTGROUP') { + optgroup = curChild; + curChild = optgroup.firstChild; + // handle empty optgroups + if (!curChild) { + curChild = optgroup.nextSibling; + optgroup = null; + } + } else { + if (nodeName === 'OPTION') { + if (curChild.hasAttribute('selected')) { + selectedIndex = i; + break; + } + i++; + } + curChild = curChild.nextSibling; + if (!curChild && optgroup) { + curChild = optgroup.nextSibling; + optgroup = null; + } + } + } + + fromEl.selectedIndex = selectedIndex; + } + } +}; + +var ELEMENT_NODE = 1; +var DOCUMENT_FRAGMENT_NODE = 11; +var TEXT_NODE = 3; +var COMMENT_NODE = 8; + +function noop() {} + +function defaultGetNodeKey(node) { + if (node) { + return (node.getAttribute && node.getAttribute('id')) || node.id; + } +} + +function morphdomFactory(morphAttrs) { + + return function morphdom(fromNode, toNode, options) { + if (!options) { + options = {}; + } + + if (typeof toNode === 'string') { + if (fromNode.nodeName === '#document' || fromNode.nodeName === 'HTML' || fromNode.nodeName === 'BODY') { + var toNodeHtml = toNode; + toNode = doc.createElement('html'); + toNode.innerHTML = toNodeHtml; + } else { + toNode = toElement(toNode); + } + } else if (toNode.nodeType === DOCUMENT_FRAGMENT_NODE) { + toNode = toNode.firstElementChild; + } + + var getNodeKey = options.getNodeKey || defaultGetNodeKey; + var onBeforeNodeAdded = options.onBeforeNodeAdded || noop; + var onNodeAdded = options.onNodeAdded || noop; + var onBeforeElUpdated = options.onBeforeElUpdated || noop; + var onElUpdated = options.onElUpdated || noop; + var onBeforeNodeDiscarded = options.onBeforeNodeDiscarded || noop; + var onNodeDiscarded = options.onNodeDiscarded || noop; + var onBeforeElChildrenUpdated = options.onBeforeElChildrenUpdated || noop; + var skipFromChildren = options.skipFromChildren || noop; + var addChild = options.addChild || function(parent, child){ return parent.appendChild(child); }; + var childrenOnly = options.childrenOnly === true; + + // This object is used as a lookup to quickly find all keyed elements in the original DOM tree. + var fromNodesLookup = Object.create(null); + var keyedRemovalList = []; + + function addKeyedRemoval(key) { + keyedRemovalList.push(key); + } + + function walkDiscardedChildNodes(node, skipKeyedNodes) { + if (node.nodeType === ELEMENT_NODE) { + var curChild = node.firstChild; + while (curChild) { + + var key = undefined; + + if (skipKeyedNodes && (key = getNodeKey(curChild))) { + // If we are skipping keyed nodes then we add the key + // to a list so that it can be handled at the very end. + addKeyedRemoval(key); + } else { + // Only report the node as discarded if it is not keyed. We do this because + // at the end we loop through all keyed elements that were unmatched + // and then discard them in one final pass. + onNodeDiscarded(curChild); + if (curChild.firstChild) { + walkDiscardedChildNodes(curChild, skipKeyedNodes); + } + } + + curChild = curChild.nextSibling; + } + } + } + + /** + * Removes a DOM node out of the original DOM + * + * @param {Node} node The node to remove + * @param {Node} parentNode The nodes parent + * @param {Boolean} skipKeyedNodes If true then elements with keys will be skipped and not discarded. + * @return {undefined} + */ + function removeNode(node, parentNode, skipKeyedNodes) { + if (onBeforeNodeDiscarded(node) === false) { + return; + } + + if (parentNode) { + parentNode.removeChild(node); + } + + onNodeDiscarded(node); + walkDiscardedChildNodes(node, skipKeyedNodes); + } + + // // TreeWalker implementation is no faster, but keeping this around in case this changes in the future + // function indexTree(root) { + // var treeWalker = document.createTreeWalker( + // root, + // NodeFilter.SHOW_ELEMENT); + // + // var el; + // while((el = treeWalker.nextNode())) { + // var key = getNodeKey(el); + // if (key) { + // fromNodesLookup[key] = el; + // } + // } + // } + + // // NodeIterator implementation is no faster, but keeping this around in case this changes in the future + // + // function indexTree(node) { + // var nodeIterator = document.createNodeIterator(node, NodeFilter.SHOW_ELEMENT); + // var el; + // while((el = nodeIterator.nextNode())) { + // var key = getNodeKey(el); + // if (key) { + // fromNodesLookup[key] = el; + // } + // } + // } + + function indexTree(node) { + if (node.nodeType === ELEMENT_NODE || node.nodeType === DOCUMENT_FRAGMENT_NODE) { + var curChild = node.firstChild; + while (curChild) { + var key = getNodeKey(curChild); + if (key) { + fromNodesLookup[key] = curChild; + } + + // Walk recursively + indexTree(curChild); + + curChild = curChild.nextSibling; + } + } + } + + indexTree(fromNode); + + function handleNodeAdded(el) { + onNodeAdded(el); + + var curChild = el.firstChild; + while (curChild) { + var nextSibling = curChild.nextSibling; + + var key = getNodeKey(curChild); + if (key) { + var unmatchedFromEl = fromNodesLookup[key]; + // if we find a duplicate #id node in cache, replace `el` with cache value + // and morph it to the child node. + if (unmatchedFromEl && compareNodeNames(curChild, unmatchedFromEl)) { + curChild.parentNode.replaceChild(unmatchedFromEl, curChild); + morphEl(unmatchedFromEl, curChild); + } else { + handleNodeAdded(curChild); + } + } else { + // recursively call for curChild and it's children to see if we find something in + // fromNodesLookup + handleNodeAdded(curChild); + } + + curChild = nextSibling; + } + } + + function cleanupFromEl(fromEl, curFromNodeChild, curFromNodeKey) { + // We have processed all of the "to nodes". If curFromNodeChild is + // non-null then we still have some from nodes left over that need + // to be removed + while (curFromNodeChild) { + var fromNextSibling = curFromNodeChild.nextSibling; + if ((curFromNodeKey = getNodeKey(curFromNodeChild))) { + // Since the node is keyed it might be matched up later so we defer + // the actual removal to later + addKeyedRemoval(curFromNodeKey); + } else { + // NOTE: we skip nested keyed nodes from being removed since there is + // still a chance they will be matched up later + removeNode(curFromNodeChild, fromEl, true /* skip keyed nodes */); + } + curFromNodeChild = fromNextSibling; + } + } + + function morphEl(fromEl, toEl, childrenOnly) { + var toElKey = getNodeKey(toEl); + + if (toElKey) { + // If an element with an ID is being morphed then it will be in the final + // DOM so clear it out of the saved elements collection + delete fromNodesLookup[toElKey]; + } + + if (!childrenOnly) { + // optional + var beforeUpdateResult = onBeforeElUpdated(fromEl, toEl); + if (beforeUpdateResult === false) { + return; + } else if (beforeUpdateResult instanceof HTMLElement) { + fromEl = beforeUpdateResult; + // reindex the new fromEl in case it's not in the same + // tree as the original fromEl + // (Phoenix LiveView sometimes returns a cloned tree, + // but keyed lookups would still point to the original tree) + indexTree(fromEl); + } + + // update attributes on original DOM element first + morphAttrs(fromEl, toEl); + // optional + onElUpdated(fromEl); + + if (onBeforeElChildrenUpdated(fromEl, toEl) === false) { + return; + } + } + + if (fromEl.nodeName !== 'TEXTAREA') { + morphChildren(fromEl, toEl); + } else { + specialElHandlers.TEXTAREA(fromEl, toEl); + } + } + + function morphChildren(fromEl, toEl) { + var skipFrom = skipFromChildren(fromEl, toEl); + var curToNodeChild = toEl.firstChild; + var curFromNodeChild = fromEl.firstChild; + var curToNodeKey; + var curFromNodeKey; + + var fromNextSibling; + var toNextSibling; + var matchingFromEl; + + // walk the children + outer: while (curToNodeChild) { + toNextSibling = curToNodeChild.nextSibling; + curToNodeKey = getNodeKey(curToNodeChild); + + // walk the fromNode children all the way through + while (!skipFrom && curFromNodeChild) { + fromNextSibling = curFromNodeChild.nextSibling; + + if (curToNodeChild.isSameNode && curToNodeChild.isSameNode(curFromNodeChild)) { + curToNodeChild = toNextSibling; + curFromNodeChild = fromNextSibling; + continue outer; + } + + curFromNodeKey = getNodeKey(curFromNodeChild); + + var curFromNodeType = curFromNodeChild.nodeType; + + // this means if the curFromNodeChild doesnt have a match with the curToNodeChild + var isCompatible = undefined; + + if (curFromNodeType === curToNodeChild.nodeType) { + if (curFromNodeType === ELEMENT_NODE) { + // Both nodes being compared are Element nodes + + if (curToNodeKey) { + // The target node has a key so we want to match it up with the correct element + // in the original DOM tree + if (curToNodeKey !== curFromNodeKey) { + // The current element in the original DOM tree does not have a matching key so + // let's check our lookup to see if there is a matching element in the original + // DOM tree + if ((matchingFromEl = fromNodesLookup[curToNodeKey])) { + if (fromNextSibling === matchingFromEl) { + // Special case for single element removals. To avoid removing the original + // DOM node out of the tree (since that can break CSS transitions, etc.), + // we will instead discard the current node and wait until the next + // iteration to properly match up the keyed target element with its matching + // element in the original tree + isCompatible = false; + } else { + // We found a matching keyed element somewhere in the original DOM tree. + // Let's move the original DOM node into the current position and morph + // it. + + // NOTE: We use insertBefore instead of replaceChild because we want to go through + // the `removeNode()` function for the node that is being discarded so that + // all lifecycle hooks are correctly invoked + fromEl.insertBefore(matchingFromEl, curFromNodeChild); + + // fromNextSibling = curFromNodeChild.nextSibling; + + if (curFromNodeKey) { + // Since the node is keyed it might be matched up later so we defer + // the actual removal to later + addKeyedRemoval(curFromNodeKey); + } else { + // NOTE: we skip nested keyed nodes from being removed since there is + // still a chance they will be matched up later + removeNode(curFromNodeChild, fromEl, true /* skip keyed nodes */); + } + + curFromNodeChild = matchingFromEl; + curFromNodeKey = getNodeKey(curFromNodeChild); + } + } else { + // The nodes are not compatible since the "to" node has a key and there + // is no matching keyed node in the source tree + isCompatible = false; + } + } + } else if (curFromNodeKey) { + // The original has a key + isCompatible = false; + } + + isCompatible = isCompatible !== false && compareNodeNames(curFromNodeChild, curToNodeChild); + if (isCompatible) { + // We found compatible DOM elements so transform + // the current "from" node to match the current + // target DOM node. + // MORPH + morphEl(curFromNodeChild, curToNodeChild); + } + + } else if (curFromNodeType === TEXT_NODE || curFromNodeType == COMMENT_NODE) { + // Both nodes being compared are Text or Comment nodes + isCompatible = true; + // Simply update nodeValue on the original node to + // change the text value + if (curFromNodeChild.nodeValue !== curToNodeChild.nodeValue) { + curFromNodeChild.nodeValue = curToNodeChild.nodeValue; + } + + } + } + + if (isCompatible) { + // Advance both the "to" child and the "from" child since we found a match + // Nothing else to do as we already recursively called morphChildren above + curToNodeChild = toNextSibling; + curFromNodeChild = fromNextSibling; + continue outer; + } + + // No compatible match so remove the old node from the DOM and continue trying to find a + // match in the original DOM. However, we only do this if the from node is not keyed + // since it is possible that a keyed node might match up with a node somewhere else in the + // target tree and we don't want to discard it just yet since it still might find a + // home in the final DOM tree. After everything is done we will remove any keyed nodes + // that didn't find a home + if (curFromNodeKey) { + // Since the node is keyed it might be matched up later so we defer + // the actual removal to later + addKeyedRemoval(curFromNodeKey); + } else { + // NOTE: we skip nested keyed nodes from being removed since there is + // still a chance they will be matched up later + removeNode(curFromNodeChild, fromEl, true /* skip keyed nodes */); + } + + curFromNodeChild = fromNextSibling; + } // END: while(curFromNodeChild) {} + + // If we got this far then we did not find a candidate match for + // our "to node" and we exhausted all of the children "from" + // nodes. Therefore, we will just append the current "to" node + // to the end + if (curToNodeKey && (matchingFromEl = fromNodesLookup[curToNodeKey]) && compareNodeNames(matchingFromEl, curToNodeChild)) { + // MORPH + if(!skipFrom){ addChild(fromEl, matchingFromEl); } + morphEl(matchingFromEl, curToNodeChild); + } else { + var onBeforeNodeAddedResult = onBeforeNodeAdded(curToNodeChild); + if (onBeforeNodeAddedResult !== false) { + if (onBeforeNodeAddedResult) { + curToNodeChild = onBeforeNodeAddedResult; + } + + if (curToNodeChild.actualize) { + curToNodeChild = curToNodeChild.actualize(fromEl.ownerDocument || doc); + } + addChild(fromEl, curToNodeChild); + handleNodeAdded(curToNodeChild); + } + } + + curToNodeChild = toNextSibling; + curFromNodeChild = fromNextSibling; + } + + cleanupFromEl(fromEl, curFromNodeChild, curFromNodeKey); + + var specialElHandler = specialElHandlers[fromEl.nodeName]; + if (specialElHandler) { + specialElHandler(fromEl, toEl); + } + } // END: morphChildren(...) + + var morphedNode = fromNode; + var morphedNodeType = morphedNode.nodeType; + var toNodeType = toNode.nodeType; + + if (!childrenOnly) { + // Handle the case where we are given two DOM nodes that are not + // compatible (e.g. <div> --> <span> or <div> --> TEXT) + if (morphedNodeType === ELEMENT_NODE) { + if (toNodeType === ELEMENT_NODE) { + if (!compareNodeNames(fromNode, toNode)) { + onNodeDiscarded(fromNode); + morphedNode = moveChildren(fromNode, createElementNS(toNode.nodeName, toNode.namespaceURI)); + } + } else { + // Going from an element node to a text node + morphedNode = toNode; + } + } else if (morphedNodeType === TEXT_NODE || morphedNodeType === COMMENT_NODE) { // Text or comment node + if (toNodeType === morphedNodeType) { + if (morphedNode.nodeValue !== toNode.nodeValue) { + morphedNode.nodeValue = toNode.nodeValue; + } + + return morphedNode; + } else { + // Text node to something else + morphedNode = toNode; + } + } + } + + if (morphedNode === toNode) { + // The "to node" was not compatible with the "from node" so we had to + // toss out the "from node" and use the "to node" + onNodeDiscarded(fromNode); + } else { + if (toNode.isSameNode && toNode.isSameNode(morphedNode)) { + return; + } + + morphEl(morphedNode, toNode, childrenOnly); + + // We now need to loop over any keyed nodes that might need to be + // removed. We only do the removal if we know that the keyed node + // never found a match. When a keyed node is matched up we remove + // it out of fromNodesLookup and we use fromNodesLookup to determine + // if a keyed node has been matched up or not + if (keyedRemovalList) { + for (var i=0, len=keyedRemovalList.length; i<len; i++) { + var elToRemove = fromNodesLookup[keyedRemovalList[i]]; + if (elToRemove) { + removeNode(elToRemove, elToRemove.parentNode, false); + } + } + } + } + + if (!childrenOnly && morphedNode !== fromNode && fromNode.parentNode) { + if (morphedNode.actualize) { + morphedNode = morphedNode.actualize(fromNode.ownerDocument || doc); + } + // If we had to swap out the from node with a new node because the old + // node was not compatible with the target node then we need to + // replace the old DOM node in the original DOM tree. This is only + // possible if the original DOM node was part of a DOM tree which + // we know is the case if it has a parent node. + fromNode.parentNode.replaceChild(morphedNode, fromNode); + } + + return morphedNode; + }; +} + +module.exports = morphdomFactory; diff --git a/node_modules/morphdom/dist/morphdom-umd.js b/node_modules/morphdom/dist/morphdom-umd.js new file mode 100644 index 0000000..d9a7563 --- /dev/null +++ b/node_modules/morphdom/dist/morphdom-umd.js @@ -0,0 +1,782 @@ +(function (global, factory) { + typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : + typeof define === 'function' && define.amd ? define(factory) : + (global = global || self, global.morphdom = factory()); +}(this, function () { 'use strict'; + + var DOCUMENT_FRAGMENT_NODE = 11; + + function morphAttrs(fromNode, toNode) { + var toNodeAttrs = toNode.attributes; + var attr; + var attrName; + var attrNamespaceURI; + var attrValue; + var fromValue; + + // document-fragments dont have attributes so lets not do anything + if (toNode.nodeType === DOCUMENT_FRAGMENT_NODE || fromNode.nodeType === DOCUMENT_FRAGMENT_NODE) { + return; + } + + // update attributes on original DOM element + for (var i = toNodeAttrs.length - 1; i >= 0; i--) { + attr = toNodeAttrs[i]; + attrName = attr.name; + attrNamespaceURI = attr.namespaceURI; + attrValue = attr.value; + + if (attrNamespaceURI) { + attrName = attr.localName || attrName; + fromValue = fromNode.getAttributeNS(attrNamespaceURI, attrName); + + if (fromValue !== attrValue) { + if (attr.prefix === 'xmlns'){ + attrName = attr.name; // It's not allowed to set an attribute with the XMLNS namespace without specifying the `xmlns` prefix + } + fromNode.setAttributeNS(attrNamespaceURI, attrName, attrValue); + } + } else { + fromValue = fromNode.getAttribute(attrName); + + if (fromValue !== attrValue) { + fromNode.setAttribute(attrName, attrValue); + } + } + } + + // Remove any extra attributes found on the original DOM element that + // weren't found on the target element. + var fromNodeAttrs = fromNode.attributes; + + for (var d = fromNodeAttrs.length - 1; d >= 0; d--) { + attr = fromNodeAttrs[d]; + attrName = attr.name; + attrNamespaceURI = attr.namespaceURI; + + if (attrNamespaceURI) { + attrName = attr.localName || attrName; + + if (!toNode.hasAttributeNS(attrNamespaceURI, attrName)) { + fromNode.removeAttributeNS(attrNamespaceURI, attrName); + } + } else { + if (!toNode.hasAttribute(attrName)) { + fromNode.removeAttribute(attrName); + } + } + } + } + + var range; // Create a range object for efficently rendering strings to elements. + var NS_XHTML = 'http://www.w3.org/1999/xhtml'; + + var doc = typeof document === 'undefined' ? undefined : document; + var HAS_TEMPLATE_SUPPORT = !!doc && 'content' in doc.createElement('template'); + var HAS_RANGE_SUPPORT = !!doc && doc.createRange && 'createContextualFragment' in doc.createRange(); + + function createFragmentFromTemplate(str) { + var template = doc.createElement('template'); + template.innerHTML = str; + return template.content.childNodes[0]; + } + + function createFragmentFromRange(str) { + if (!range) { + range = doc.createRange(); + range.selectNode(doc.body); + } + + var fragment = range.createContextualFragment(str); + return fragment.childNodes[0]; + } + + function createFragmentFromWrap(str) { + var fragment = doc.createElement('body'); + fragment.innerHTML = str; + return fragment.childNodes[0]; + } + + /** + * This is about the same + * var html = new DOMParser().parseFromString(str, 'text/html'); + * return html.body.firstChild; + * + * @method toElement + * @param {String} str + */ + function toElement(str) { + str = str.trim(); + if (HAS_TEMPLATE_SUPPORT) { + // avoid restrictions on content for things like `<tr><th>Hi</th></tr>` which + // createContextualFragment doesn't support + // <template> support not available in IE + return createFragmentFromTemplate(str); + } else if (HAS_RANGE_SUPPORT) { + return createFragmentFromRange(str); + } + + return createFragmentFromWrap(str); + } + + /** + * Returns true if two node's names are the same. + * + * NOTE: We don't bother checking `namespaceURI` because you will never find two HTML elements with the same + * nodeName and different namespace URIs. + * + * @param {Element} a + * @param {Element} b The target element + * @return {boolean} + */ + function compareNodeNames(fromEl, toEl) { + var fromNodeName = fromEl.nodeName; + var toNodeName = toEl.nodeName; + var fromCodeStart, toCodeStart; + + if (fromNodeName === toNodeName) { + return true; + } + + fromCodeStart = fromNodeName.charCodeAt(0); + toCodeStart = toNodeName.charCodeAt(0); + + // If the target element is a virtual DOM node or SVG node then we may + // need to normalize the tag name before comparing. Normal HTML elements that are + // in the "http://www.w3.org/1999/xhtml" + // are converted to upper case + if (fromCodeStart <= 90 && toCodeStart >= 97) { // from is upper and to is lower + return fromNodeName === toNodeName.toUpperCase(); + } else if (toCodeStart <= 90 && fromCodeStart >= 97) { // to is upper and from is lower + return toNodeName === fromNodeName.toUpperCase(); + } else { + return false; + } + } + + /** + * Create an element, optionally with a known namespace URI. + * + * @param {string} name the element name, e.g. 'div' or 'svg' + * @param {string} [namespaceURI] the element's namespace URI, i.e. the value of + * its `xmlns` attribute or its inferred namespace. + * + * @return {Element} + */ + function createElementNS(name, namespaceURI) { + return !namespaceURI || namespaceURI === NS_XHTML ? + doc.createElement(name) : + doc.createElementNS(namespaceURI, name); + } + + /** + * Copies the children of one DOM element to another DOM element + */ + function moveChildren(fromEl, toEl) { + var curChild = fromEl.firstChild; + while (curChild) { + var nextChild = curChild.nextSibling; + toEl.appendChild(curChild); + curChild = nextChild; + } + return toEl; + } + + function syncBooleanAttrProp(fromEl, toEl, name) { + if (fromEl[name] !== toEl[name]) { + fromEl[name] = toEl[name]; + if (fromEl[name]) { + fromEl.setAttribute(name, ''); + } else { + fromEl.removeAttribute(name); + } + } + } + + var specialElHandlers = { + OPTION: function(fromEl, toEl) { + var parentNode = fromEl.parentNode; + if (parentNode) { + var parentName = parentNode.nodeName.toUpperCase(); + if (parentName === 'OPTGROUP') { + parentNode = parentNode.parentNode; + parentName = parentNode && parentNode.nodeName.toUpperCase(); + } + if (parentName === 'SELECT' && !parentNode.hasAttribute('multiple')) { + if (fromEl.hasAttribute('selected') && !toEl.selected) { + // Workaround for MS Edge bug where the 'selected' attribute can only be + // removed if set to a non-empty value: + // https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/12087679/ + fromEl.setAttribute('selected', 'selected'); + fromEl.removeAttribute('selected'); + } + // We have to reset select element's selectedIndex to -1, otherwise setting + // fromEl.selected using the syncBooleanAttrProp below has no effect. + // The correct selectedIndex will be set in the SELECT special handler below. + parentNode.selectedIndex = -1; + } + } + syncBooleanAttrProp(fromEl, toEl, 'selected'); + }, + /** + * The "value" attribute is special for the <input> element since it sets + * the initial value. Changing the "value" attribute without changing the + * "value" property will have no effect since it is only used to the set the + * initial value. Similar for the "checked" attribute, and "disabled". + */ + INPUT: function(fromEl, toEl) { + syncBooleanAttrProp(fromEl, toEl, 'checked'); + syncBooleanAttrProp(fromEl, toEl, 'disabled'); + + if (fromEl.value !== toEl.value) { + fromEl.value = toEl.value; + } + + if (!toEl.hasAttribute('value')) { + fromEl.removeAttribute('value'); + } + }, + + TEXTAREA: function(fromEl, toEl) { + var newValue = toEl.value; + if (fromEl.value !== newValue) { + fromEl.value = newValue; + } + + var firstChild = fromEl.firstChild; + if (firstChild) { + // Needed for IE. Apparently IE sets the placeholder as the + // node value and vise versa. This ignores an empty update. + var oldValue = firstChild.nodeValue; + + if (oldValue == newValue || (!newValue && oldValue == fromEl.placeholder)) { + return; + } + + firstChild.nodeValue = newValue; + } + }, + SELECT: function(fromEl, toEl) { + if (!toEl.hasAttribute('multiple')) { + var selectedIndex = -1; + var i = 0; + // We have to loop through children of fromEl, not toEl since nodes can be moved + // from toEl to fromEl directly when morphing. + // At the time this special handler is invoked, all children have already been morphed + // and appended to / removed from fromEl, so using fromEl here is safe and correct. + var curChild = fromEl.firstChild; + var optgroup; + var nodeName; + while(curChild) { + nodeName = curChild.nodeName && curChild.nodeName.toUpperCase(); + if (nodeName === 'OPTGROUP') { + optgroup = curChild; + curChild = optgroup.firstChild; + // handle empty optgroups + if (!curChild) { + curChild = optgroup.nextSibling; + optgroup = null; + } + } else { + if (nodeName === 'OPTION') { + if (curChild.hasAttribute('selected')) { + selectedIndex = i; + break; + } + i++; + } + curChild = curChild.nextSibling; + if (!curChild && optgroup) { + curChild = optgroup.nextSibling; + optgroup = null; + } + } + } + + fromEl.selectedIndex = selectedIndex; + } + } + }; + + var ELEMENT_NODE = 1; + var DOCUMENT_FRAGMENT_NODE$1 = 11; + var TEXT_NODE = 3; + var COMMENT_NODE = 8; + + function noop() {} + + function defaultGetNodeKey(node) { + if (node) { + return (node.getAttribute && node.getAttribute('id')) || node.id; + } + } + + function morphdomFactory(morphAttrs) { + + return function morphdom(fromNode, toNode, options) { + if (!options) { + options = {}; + } + + if (typeof toNode === 'string') { + if (fromNode.nodeName === '#document' || fromNode.nodeName === 'HTML' || fromNode.nodeName === 'BODY') { + var toNodeHtml = toNode; + toNode = doc.createElement('html'); + toNode.innerHTML = toNodeHtml; + } else { + toNode = toElement(toNode); + } + } else if (toNode.nodeType === DOCUMENT_FRAGMENT_NODE$1) { + toNode = toNode.firstElementChild; + } + + var getNodeKey = options.getNodeKey || defaultGetNodeKey; + var onBeforeNodeAdded = options.onBeforeNodeAdded || noop; + var onNodeAdded = options.onNodeAdded || noop; + var onBeforeElUpdated = options.onBeforeElUpdated || noop; + var onElUpdated = options.onElUpdated || noop; + var onBeforeNodeDiscarded = options.onBeforeNodeDiscarded || noop; + var onNodeDiscarded = options.onNodeDiscarded || noop; + var onBeforeElChildrenUpdated = options.onBeforeElChildrenUpdated || noop; + var skipFromChildren = options.skipFromChildren || noop; + var addChild = options.addChild || function(parent, child){ return parent.appendChild(child); }; + var childrenOnly = options.childrenOnly === true; + + // This object is used as a lookup to quickly find all keyed elements in the original DOM tree. + var fromNodesLookup = Object.create(null); + var keyedRemovalList = []; + + function addKeyedRemoval(key) { + keyedRemovalList.push(key); + } + + function walkDiscardedChildNodes(node, skipKeyedNodes) { + if (node.nodeType === ELEMENT_NODE) { + var curChild = node.firstChild; + while (curChild) { + + var key = undefined; + + if (skipKeyedNodes && (key = getNodeKey(curChild))) { + // If we are skipping keyed nodes then we add the key + // to a list so that it can be handled at the very end. + addKeyedRemoval(key); + } else { + // Only report the node as discarded if it is not keyed. We do this because + // at the end we loop through all keyed elements that were unmatched + // and then discard them in one final pass. + onNodeDiscarded(curChild); + if (curChild.firstChild) { + walkDiscardedChildNodes(curChild, skipKeyedNodes); + } + } + + curChild = curChild.nextSibling; + } + } + } + + /** + * Removes a DOM node out of the original DOM + * + * @param {Node} node The node to remove + * @param {Node} parentNode The nodes parent + * @param {Boolean} skipKeyedNodes If true then elements with keys will be skipped and not discarded. + * @return {undefined} + */ + function removeNode(node, parentNode, skipKeyedNodes) { + if (onBeforeNodeDiscarded(node) === false) { + return; + } + + if (parentNode) { + parentNode.removeChild(node); + } + + onNodeDiscarded(node); + walkDiscardedChildNodes(node, skipKeyedNodes); + } + + // // TreeWalker implementation is no faster, but keeping this around in case this changes in the future + // function indexTree(root) { + // var treeWalker = document.createTreeWalker( + // root, + // NodeFilter.SHOW_ELEMENT); + // + // var el; + // while((el = treeWalker.nextNode())) { + // var key = getNodeKey(el); + // if (key) { + // fromNodesLookup[key] = el; + // } + // } + // } + + // // NodeIterator implementation is no faster, but keeping this around in case this changes in the future + // + // function indexTree(node) { + // var nodeIterator = document.createNodeIterator(node, NodeFilter.SHOW_ELEMENT); + // var el; + // while((el = nodeIterator.nextNode())) { + // var key = getNodeKey(el); + // if (key) { + // fromNodesLookup[key] = el; + // } + // } + // } + + function indexTree(node) { + if (node.nodeType === ELEMENT_NODE || node.nodeType === DOCUMENT_FRAGMENT_NODE$1) { + var curChild = node.firstChild; + while (curChild) { + var key = getNodeKey(curChild); + if (key) { + fromNodesLookup[key] = curChild; + } + + // Walk recursively + indexTree(curChild); + + curChild = curChild.nextSibling; + } + } + } + + indexTree(fromNode); + + function handleNodeAdded(el) { + onNodeAdded(el); + + var curChild = el.firstChild; + while (curChild) { + var nextSibling = curChild.nextSibling; + + var key = getNodeKey(curChild); + if (key) { + var unmatchedFromEl = fromNodesLookup[key]; + // if we find a duplicate #id node in cache, replace `el` with cache value + // and morph it to the child node. + if (unmatchedFromEl && compareNodeNames(curChild, unmatchedFromEl)) { + curChild.parentNode.replaceChild(unmatchedFromEl, curChild); + morphEl(unmatchedFromEl, curChild); + } else { + handleNodeAdded(curChild); + } + } else { + // recursively call for curChild and it's children to see if we find something in + // fromNodesLookup + handleNodeAdded(curChild); + } + + curChild = nextSibling; + } + } + + function cleanupFromEl(fromEl, curFromNodeChild, curFromNodeKey) { + // We have processed all of the "to nodes". If curFromNodeChild is + // non-null then we still have some from nodes left over that need + // to be removed + while (curFromNodeChild) { + var fromNextSibling = curFromNodeChild.nextSibling; + if ((curFromNodeKey = getNodeKey(curFromNodeChild))) { + // Since the node is keyed it might be matched up later so we defer + // the actual removal to later + addKeyedRemoval(curFromNodeKey); + } else { + // NOTE: we skip nested keyed nodes from being removed since there is + // still a chance they will be matched up later + removeNode(curFromNodeChild, fromEl, true /* skip keyed nodes */); + } + curFromNodeChild = fromNextSibling; + } + } + + function morphEl(fromEl, toEl, childrenOnly) { + var toElKey = getNodeKey(toEl); + + if (toElKey) { + // If an element with an ID is being morphed then it will be in the final + // DOM so clear it out of the saved elements collection + delete fromNodesLookup[toElKey]; + } + + if (!childrenOnly) { + // optional + var beforeUpdateResult = onBeforeElUpdated(fromEl, toEl); + if (beforeUpdateResult === false) { + return; + } else if (beforeUpdateResult instanceof HTMLElement) { + fromEl = beforeUpdateResult; + // reindex the new fromEl in case it's not in the same + // tree as the original fromEl + // (Phoenix LiveView sometimes returns a cloned tree, + // but keyed lookups would still point to the original tree) + indexTree(fromEl); + } + + // update attributes on original DOM element first + morphAttrs(fromEl, toEl); + // optional + onElUpdated(fromEl); + + if (onBeforeElChildrenUpdated(fromEl, toEl) === false) { + return; + } + } + + if (fromEl.nodeName !== 'TEXTAREA') { + morphChildren(fromEl, toEl); + } else { + specialElHandlers.TEXTAREA(fromEl, toEl); + } + } + + function morphChildren(fromEl, toEl) { + var skipFrom = skipFromChildren(fromEl, toEl); + var curToNodeChild = toEl.firstChild; + var curFromNodeChild = fromEl.firstChild; + var curToNodeKey; + var curFromNodeKey; + + var fromNextSibling; + var toNextSibling; + var matchingFromEl; + + // walk the children + outer: while (curToNodeChild) { + toNextSibling = curToNodeChild.nextSibling; + curToNodeKey = getNodeKey(curToNodeChild); + + // walk the fromNode children all the way through + while (!skipFrom && curFromNodeChild) { + fromNextSibling = curFromNodeChild.nextSibling; + + if (curToNodeChild.isSameNode && curToNodeChild.isSameNode(curFromNodeChild)) { + curToNodeChild = toNextSibling; + curFromNodeChild = fromNextSibling; + continue outer; + } + + curFromNodeKey = getNodeKey(curFromNodeChild); + + var curFromNodeType = curFromNodeChild.nodeType; + + // this means if the curFromNodeChild doesnt have a match with the curToNodeChild + var isCompatible = undefined; + + if (curFromNodeType === curToNodeChild.nodeType) { + if (curFromNodeType === ELEMENT_NODE) { + // Both nodes being compared are Element nodes + + if (curToNodeKey) { + // The target node has a key so we want to match it up with the correct element + // in the original DOM tree + if (curToNodeKey !== curFromNodeKey) { + // The current element in the original DOM tree does not have a matching key so + // let's check our lookup to see if there is a matching element in the original + // DOM tree + if ((matchingFromEl = fromNodesLookup[curToNodeKey])) { + if (fromNextSibling === matchingFromEl) { + // Special case for single element removals. To avoid removing the original + // DOM node out of the tree (since that can break CSS transitions, etc.), + // we will instead discard the current node and wait until the next + // iteration to properly match up the keyed target element with its matching + // element in the original tree + isCompatible = false; + } else { + // We found a matching keyed element somewhere in the original DOM tree. + // Let's move the original DOM node into the current position and morph + // it. + + // NOTE: We use insertBefore instead of replaceChild because we want to go through + // the `removeNode()` function for the node that is being discarded so that + // all lifecycle hooks are correctly invoked + fromEl.insertBefore(matchingFromEl, curFromNodeChild); + + // fromNextSibling = curFromNodeChild.nextSibling; + + if (curFromNodeKey) { + // Since the node is keyed it might be matched up later so we defer + // the actual removal to later + addKeyedRemoval(curFromNodeKey); + } else { + // NOTE: we skip nested keyed nodes from being removed since there is + // still a chance they will be matched up later + removeNode(curFromNodeChild, fromEl, true /* skip keyed nodes */); + } + + curFromNodeChild = matchingFromEl; + curFromNodeKey = getNodeKey(curFromNodeChild); + } + } else { + // The nodes are not compatible since the "to" node has a key and there + // is no matching keyed node in the source tree + isCompatible = false; + } + } + } else if (curFromNodeKey) { + // The original has a key + isCompatible = false; + } + + isCompatible = isCompatible !== false && compareNodeNames(curFromNodeChild, curToNodeChild); + if (isCompatible) { + // We found compatible DOM elements so transform + // the current "from" node to match the current + // target DOM node. + // MORPH + morphEl(curFromNodeChild, curToNodeChild); + } + + } else if (curFromNodeType === TEXT_NODE || curFromNodeType == COMMENT_NODE) { + // Both nodes being compared are Text or Comment nodes + isCompatible = true; + // Simply update nodeValue on the original node to + // change the text value + if (curFromNodeChild.nodeValue !== curToNodeChild.nodeValue) { + curFromNodeChild.nodeValue = curToNodeChild.nodeValue; + } + + } + } + + if (isCompatible) { + // Advance both the "to" child and the "from" child since we found a match + // Nothing else to do as we already recursively called morphChildren above + curToNodeChild = toNextSibling; + curFromNodeChild = fromNextSibling; + continue outer; + } + + // No compatible match so remove the old node from the DOM and continue trying to find a + // match in the original DOM. However, we only do this if the from node is not keyed + // since it is possible that a keyed node might match up with a node somewhere else in the + // target tree and we don't want to discard it just yet since it still might find a + // home in the final DOM tree. After everything is done we will remove any keyed nodes + // that didn't find a home + if (curFromNodeKey) { + // Since the node is keyed it might be matched up later so we defer + // the actual removal to later + addKeyedRemoval(curFromNodeKey); + } else { + // NOTE: we skip nested keyed nodes from being removed since there is + // still a chance they will be matched up later + removeNode(curFromNodeChild, fromEl, true /* skip keyed nodes */); + } + + curFromNodeChild = fromNextSibling; + } // END: while(curFromNodeChild) {} + + // If we got this far then we did not find a candidate match for + // our "to node" and we exhausted all of the children "from" + // nodes. Therefore, we will just append the current "to" node + // to the end + if (curToNodeKey && (matchingFromEl = fromNodesLookup[curToNodeKey]) && compareNodeNames(matchingFromEl, curToNodeChild)) { + // MORPH + if(!skipFrom){ addChild(fromEl, matchingFromEl); } + morphEl(matchingFromEl, curToNodeChild); + } else { + var onBeforeNodeAddedResult = onBeforeNodeAdded(curToNodeChild); + if (onBeforeNodeAddedResult !== false) { + if (onBeforeNodeAddedResult) { + curToNodeChild = onBeforeNodeAddedResult; + } + + if (curToNodeChild.actualize) { + curToNodeChild = curToNodeChild.actualize(fromEl.ownerDocument || doc); + } + addChild(fromEl, curToNodeChild); + handleNodeAdded(curToNodeChild); + } + } + + curToNodeChild = toNextSibling; + curFromNodeChild = fromNextSibling; + } + + cleanupFromEl(fromEl, curFromNodeChild, curFromNodeKey); + + var specialElHandler = specialElHandlers[fromEl.nodeName]; + if (specialElHandler) { + specialElHandler(fromEl, toEl); + } + } // END: morphChildren(...) + + var morphedNode = fromNode; + var morphedNodeType = morphedNode.nodeType; + var toNodeType = toNode.nodeType; + + if (!childrenOnly) { + // Handle the case where we are given two DOM nodes that are not + // compatible (e.g. <div> --> <span> or <div> --> TEXT) + if (morphedNodeType === ELEMENT_NODE) { + if (toNodeType === ELEMENT_NODE) { + if (!compareNodeNames(fromNode, toNode)) { + onNodeDiscarded(fromNode); + morphedNode = moveChildren(fromNode, createElementNS(toNode.nodeName, toNode.namespaceURI)); + } + } else { + // Going from an element node to a text node + morphedNode = toNode; + } + } else if (morphedNodeType === TEXT_NODE || morphedNodeType === COMMENT_NODE) { // Text or comment node + if (toNodeType === morphedNodeType) { + if (morphedNode.nodeValue !== toNode.nodeValue) { + morphedNode.nodeValue = toNode.nodeValue; + } + + return morphedNode; + } else { + // Text node to something else + morphedNode = toNode; + } + } + } + + if (morphedNode === toNode) { + // The "to node" was not compatible with the "from node" so we had to + // toss out the "from node" and use the "to node" + onNodeDiscarded(fromNode); + } else { + if (toNode.isSameNode && toNode.isSameNode(morphedNode)) { + return; + } + + morphEl(morphedNode, toNode, childrenOnly); + + // We now need to loop over any keyed nodes that might need to be + // removed. We only do the removal if we know that the keyed node + // never found a match. When a keyed node is matched up we remove + // it out of fromNodesLookup and we use fromNodesLookup to determine + // if a keyed node has been matched up or not + if (keyedRemovalList) { + for (var i=0, len=keyedRemovalList.length; i<len; i++) { + var elToRemove = fromNodesLookup[keyedRemovalList[i]]; + if (elToRemove) { + removeNode(elToRemove, elToRemove.parentNode, false); + } + } + } + } + + if (!childrenOnly && morphedNode !== fromNode && fromNode.parentNode) { + if (morphedNode.actualize) { + morphedNode = morphedNode.actualize(fromNode.ownerDocument || doc); + } + // If we had to swap out the from node with a new node because the old + // node was not compatible with the target node then we need to + // replace the old DOM node in the original DOM tree. This is only + // possible if the original DOM node was part of a DOM tree which + // we know is the case if it has a parent node. + fromNode.parentNode.replaceChild(morphedNode, fromNode); + } + + return morphedNode; + }; + } + + var morphdom = morphdomFactory(morphAttrs); + + return morphdom; + +})); diff --git a/node_modules/morphdom/dist/morphdom-umd.min.js b/node_modules/morphdom/dist/morphdom-umd.min.js new file mode 100644 index 0000000..a697896 --- /dev/null +++ b/node_modules/morphdom/dist/morphdom-umd.min.js @@ -0,0 +1 @@ +(function(global,factory){typeof exports==="object"&&typeof module!=="undefined"?module.exports=factory():typeof define==="function"&&define.amd?define(factory):(global=global||self,global.morphdom=factory())})(this,function(){"use strict";var DOCUMENT_FRAGMENT_NODE=11;function morphAttrs(fromNode,toNode){var toNodeAttrs=toNode.attributes;var attr;var attrName;var attrNamespaceURI;var attrValue;var fromValue;if(toNode.nodeType===DOCUMENT_FRAGMENT_NODE||fromNode.nodeType===DOCUMENT_FRAGMENT_NODE){return}for(var i=toNodeAttrs.length-1;i>=0;i--){attr=toNodeAttrs[i];attrName=attr.name;attrNamespaceURI=attr.namespaceURI;attrValue=attr.value;if(attrNamespaceURI){attrName=attr.localName||attrName;fromValue=fromNode.getAttributeNS(attrNamespaceURI,attrName);if(fromValue!==attrValue){if(attr.prefix==="xmlns"){attrName=attr.name}fromNode.setAttributeNS(attrNamespaceURI,attrName,attrValue)}}else{fromValue=fromNode.getAttribute(attrName);if(fromValue!==attrValue){fromNode.setAttribute(attrName,attrValue)}}}var fromNodeAttrs=fromNode.attributes;for(var d=fromNodeAttrs.length-1;d>=0;d--){attr=fromNodeAttrs[d];attrName=attr.name;attrNamespaceURI=attr.namespaceURI;if(attrNamespaceURI){attrName=attr.localName||attrName;if(!toNode.hasAttributeNS(attrNamespaceURI,attrName)){fromNode.removeAttributeNS(attrNamespaceURI,attrName)}}else{if(!toNode.hasAttribute(attrName)){fromNode.removeAttribute(attrName)}}}}var range;var NS_XHTML="http://www.w3.org/1999/xhtml";var doc=typeof document==="undefined"?undefined:document;var HAS_TEMPLATE_SUPPORT=!!doc&&"content"in doc.createElement("template");var HAS_RANGE_SUPPORT=!!doc&&doc.createRange&&"createContextualFragment"in doc.createRange();function createFragmentFromTemplate(str){var template=doc.createElement("template");template.innerHTML=str;return template.content.childNodes[0]}function createFragmentFromRange(str){if(!range){range=doc.createRange();range.selectNode(doc.body)}var fragment=range.createContextualFragment(str);return fragment.childNodes[0]}function createFragmentFromWrap(str){var fragment=doc.createElement("body");fragment.innerHTML=str;return fragment.childNodes[0]}function toElement(str){str=str.trim();if(HAS_TEMPLATE_SUPPORT){return createFragmentFromTemplate(str)}else if(HAS_RANGE_SUPPORT){return createFragmentFromRange(str)}return createFragmentFromWrap(str)}function compareNodeNames(fromEl,toEl){var fromNodeName=fromEl.nodeName;var toNodeName=toEl.nodeName;var fromCodeStart,toCodeStart;if(fromNodeName===toNodeName){return true}fromCodeStart=fromNodeName.charCodeAt(0);toCodeStart=toNodeName.charCodeAt(0);if(fromCodeStart<=90&&toCodeStart>=97){return fromNodeName===toNodeName.toUpperCase()}else if(toCodeStart<=90&&fromCodeStart>=97){return toNodeName===fromNodeName.toUpperCase()}else{return false}}function createElementNS(name,namespaceURI){return!namespaceURI||namespaceURI===NS_XHTML?doc.createElement(name):doc.createElementNS(namespaceURI,name)}function moveChildren(fromEl,toEl){var curChild=fromEl.firstChild;while(curChild){var nextChild=curChild.nextSibling;toEl.appendChild(curChild);curChild=nextChild}return toEl}function syncBooleanAttrProp(fromEl,toEl,name){if(fromEl[name]!==toEl[name]){fromEl[name]=toEl[name];if(fromEl[name]){fromEl.setAttribute(name,"")}else{fromEl.removeAttribute(name)}}}var specialElHandlers={OPTION:function(fromEl,toEl){var parentNode=fromEl.parentNode;if(parentNode){var parentName=parentNode.nodeName.toUpperCase();if(parentName==="OPTGROUP"){parentNode=parentNode.parentNode;parentName=parentNode&&parentNode.nodeName.toUpperCase()}if(parentName==="SELECT"&&!parentNode.hasAttribute("multiple")){if(fromEl.hasAttribute("selected")&&!toEl.selected){fromEl.setAttribute("selected","selected");fromEl.removeAttribute("selected")}parentNode.selectedIndex=-1}}syncBooleanAttrProp(fromEl,toEl,"selected")},INPUT:function(fromEl,toEl){syncBooleanAttrProp(fromEl,toEl,"checked");syncBooleanAttrProp(fromEl,toEl,"disabled");if(fromEl.value!==toEl.value){fromEl.value=toEl.value}if(!toEl.hasAttribute("value")){fromEl.removeAttribute("value")}},TEXTAREA:function(fromEl,toEl){var newValue=toEl.value;if(fromEl.value!==newValue){fromEl.value=newValue}var firstChild=fromEl.firstChild;if(firstChild){var oldValue=firstChild.nodeValue;if(oldValue==newValue||!newValue&&oldValue==fromEl.placeholder){return}firstChild.nodeValue=newValue}},SELECT:function(fromEl,toEl){if(!toEl.hasAttribute("multiple")){var selectedIndex=-1;var i=0;var curChild=fromEl.firstChild;var optgroup;var nodeName;while(curChild){nodeName=curChild.nodeName&&curChild.nodeName.toUpperCase();if(nodeName==="OPTGROUP"){optgroup=curChild;curChild=optgroup.firstChild;if(!curChild){curChild=optgroup.nextSibling;optgroup=null}}else{if(nodeName==="OPTION"){if(curChild.hasAttribute("selected")){selectedIndex=i;break}i++}curChild=curChild.nextSibling;if(!curChild&&optgroup){curChild=optgroup.nextSibling;optgroup=null}}}fromEl.selectedIndex=selectedIndex}}};var ELEMENT_NODE=1;var DOCUMENT_FRAGMENT_NODE$1=11;var TEXT_NODE=3;var COMMENT_NODE=8;function noop(){}function defaultGetNodeKey(node){if(node){return node.getAttribute&&node.getAttribute("id")||node.id}}function morphdomFactory(morphAttrs){return function morphdom(fromNode,toNode,options){if(!options){options={}}if(typeof toNode==="string"){if(fromNode.nodeName==="#document"||fromNode.nodeName==="HTML"||fromNode.nodeName==="BODY"){var toNodeHtml=toNode;toNode=doc.createElement("html");toNode.innerHTML=toNodeHtml}else{toNode=toElement(toNode)}}else if(toNode.nodeType===DOCUMENT_FRAGMENT_NODE$1){toNode=toNode.firstElementChild}var getNodeKey=options.getNodeKey||defaultGetNodeKey;var onBeforeNodeAdded=options.onBeforeNodeAdded||noop;var onNodeAdded=options.onNodeAdded||noop;var onBeforeElUpdated=options.onBeforeElUpdated||noop;var onElUpdated=options.onElUpdated||noop;var onBeforeNodeDiscarded=options.onBeforeNodeDiscarded||noop;var onNodeDiscarded=options.onNodeDiscarded||noop;var onBeforeElChildrenUpdated=options.onBeforeElChildrenUpdated||noop;var skipFromChildren=options.skipFromChildren||noop;var addChild=options.addChild||function(parent,child){return parent.appendChild(child)};var childrenOnly=options.childrenOnly===true;var fromNodesLookup=Object.create(null);var keyedRemovalList=[];function addKeyedRemoval(key){keyedRemovalList.push(key)}function walkDiscardedChildNodes(node,skipKeyedNodes){if(node.nodeType===ELEMENT_NODE){var curChild=node.firstChild;while(curChild){var key=undefined;if(skipKeyedNodes&&(key=getNodeKey(curChild))){addKeyedRemoval(key)}else{onNodeDiscarded(curChild);if(curChild.firstChild){walkDiscardedChildNodes(curChild,skipKeyedNodes)}}curChild=curChild.nextSibling}}}function removeNode(node,parentNode,skipKeyedNodes){if(onBeforeNodeDiscarded(node)===false){return}if(parentNode){parentNode.removeChild(node)}onNodeDiscarded(node);walkDiscardedChildNodes(node,skipKeyedNodes)}function indexTree(node){if(node.nodeType===ELEMENT_NODE||node.nodeType===DOCUMENT_FRAGMENT_NODE$1){var curChild=node.firstChild;while(curChild){var key=getNodeKey(curChild);if(key){fromNodesLookup[key]=curChild}indexTree(curChild);curChild=curChild.nextSibling}}}indexTree(fromNode);function handleNodeAdded(el){onNodeAdded(el);var curChild=el.firstChild;while(curChild){var nextSibling=curChild.nextSibling;var key=getNodeKey(curChild);if(key){var unmatchedFromEl=fromNodesLookup[key];if(unmatchedFromEl&&compareNodeNames(curChild,unmatchedFromEl)){curChild.parentNode.replaceChild(unmatchedFromEl,curChild);morphEl(unmatchedFromEl,curChild)}else{handleNodeAdded(curChild)}}else{handleNodeAdded(curChild)}curChild=nextSibling}}function cleanupFromEl(fromEl,curFromNodeChild,curFromNodeKey){while(curFromNodeChild){var fromNextSibling=curFromNodeChild.nextSibling;if(curFromNodeKey=getNodeKey(curFromNodeChild)){addKeyedRemoval(curFromNodeKey)}else{removeNode(curFromNodeChild,fromEl,true)}curFromNodeChild=fromNextSibling}}function morphEl(fromEl,toEl,childrenOnly){var toElKey=getNodeKey(toEl);if(toElKey){delete fromNodesLookup[toElKey]}if(!childrenOnly){var beforeUpdateResult=onBeforeElUpdated(fromEl,toEl);if(beforeUpdateResult===false){return}else if(beforeUpdateResult instanceof HTMLElement){fromEl=beforeUpdateResult;indexTree(fromEl)}morphAttrs(fromEl,toEl);onElUpdated(fromEl);if(onBeforeElChildrenUpdated(fromEl,toEl)===false){return}}if(fromEl.nodeName!=="TEXTAREA"){morphChildren(fromEl,toEl)}else{specialElHandlers.TEXTAREA(fromEl,toEl)}}function morphChildren(fromEl,toEl){var skipFrom=skipFromChildren(fromEl,toEl);var curToNodeChild=toEl.firstChild;var curFromNodeChild=fromEl.firstChild;var curToNodeKey;var curFromNodeKey;var fromNextSibling;var toNextSibling;var matchingFromEl;outer:while(curToNodeChild){toNextSibling=curToNodeChild.nextSibling;curToNodeKey=getNodeKey(curToNodeChild);while(!skipFrom&&curFromNodeChild){fromNextSibling=curFromNodeChild.nextSibling;if(curToNodeChild.isSameNode&&curToNodeChild.isSameNode(curFromNodeChild)){curToNodeChild=toNextSibling;curFromNodeChild=fromNextSibling;continue outer}curFromNodeKey=getNodeKey(curFromNodeChild);var curFromNodeType=curFromNodeChild.nodeType;var isCompatible=undefined;if(curFromNodeType===curToNodeChild.nodeType){if(curFromNodeType===ELEMENT_NODE){if(curToNodeKey){if(curToNodeKey!==curFromNodeKey){if(matchingFromEl=fromNodesLookup[curToNodeKey]){if(fromNextSibling===matchingFromEl){isCompatible=false}else{fromEl.insertBefore(matchingFromEl,curFromNodeChild);if(curFromNodeKey){addKeyedRemoval(curFromNodeKey)}else{removeNode(curFromNodeChild,fromEl,true)}curFromNodeChild=matchingFromEl;curFromNodeKey=getNodeKey(curFromNodeChild)}}else{isCompatible=false}}}else if(curFromNodeKey){isCompatible=false}isCompatible=isCompatible!==false&&compareNodeNames(curFromNodeChild,curToNodeChild);if(isCompatible){morphEl(curFromNodeChild,curToNodeChild)}}else if(curFromNodeType===TEXT_NODE||curFromNodeType==COMMENT_NODE){isCompatible=true;if(curFromNodeChild.nodeValue!==curToNodeChild.nodeValue){curFromNodeChild.nodeValue=curToNodeChild.nodeValue}}}if(isCompatible){curToNodeChild=toNextSibling;curFromNodeChild=fromNextSibling;continue outer}if(curFromNodeKey){addKeyedRemoval(curFromNodeKey)}else{removeNode(curFromNodeChild,fromEl,true)}curFromNodeChild=fromNextSibling}if(curToNodeKey&&(matchingFromEl=fromNodesLookup[curToNodeKey])&&compareNodeNames(matchingFromEl,curToNodeChild)){if(!skipFrom){addChild(fromEl,matchingFromEl)}morphEl(matchingFromEl,curToNodeChild)}else{var onBeforeNodeAddedResult=onBeforeNodeAdded(curToNodeChild);if(onBeforeNodeAddedResult!==false){if(onBeforeNodeAddedResult){curToNodeChild=onBeforeNodeAddedResult}if(curToNodeChild.actualize){curToNodeChild=curToNodeChild.actualize(fromEl.ownerDocument||doc)}addChild(fromEl,curToNodeChild);handleNodeAdded(curToNodeChild)}}curToNodeChild=toNextSibling;curFromNodeChild=fromNextSibling}cleanupFromEl(fromEl,curFromNodeChild,curFromNodeKey);var specialElHandler=specialElHandlers[fromEl.nodeName];if(specialElHandler){specialElHandler(fromEl,toEl)}}var morphedNode=fromNode;var morphedNodeType=morphedNode.nodeType;var toNodeType=toNode.nodeType;if(!childrenOnly){if(morphedNodeType===ELEMENT_NODE){if(toNodeType===ELEMENT_NODE){if(!compareNodeNames(fromNode,toNode)){onNodeDiscarded(fromNode);morphedNode=moveChildren(fromNode,createElementNS(toNode.nodeName,toNode.namespaceURI))}}else{morphedNode=toNode}}else if(morphedNodeType===TEXT_NODE||morphedNodeType===COMMENT_NODE){if(toNodeType===morphedNodeType){if(morphedNode.nodeValue!==toNode.nodeValue){morphedNode.nodeValue=toNode.nodeValue}return morphedNode}else{morphedNode=toNode}}}if(morphedNode===toNode){onNodeDiscarded(fromNode)}else{if(toNode.isSameNode&&toNode.isSameNode(morphedNode)){return}morphEl(morphedNode,toNode,childrenOnly);if(keyedRemovalList){for(var i=0,len=keyedRemovalList.length;i<len;i++){var elToRemove=fromNodesLookup[keyedRemovalList[i]];if(elToRemove){removeNode(elToRemove,elToRemove.parentNode,false)}}}}if(!childrenOnly&&morphedNode!==fromNode&&fromNode.parentNode){if(morphedNode.actualize){morphedNode=morphedNode.actualize(fromNode.ownerDocument||doc)}fromNode.parentNode.replaceChild(morphedNode,fromNode)}return morphedNode}}var morphdom=morphdomFactory(morphAttrs);return morphdom});
\ No newline at end of file diff --git a/node_modules/morphdom/dist/morphdom.js b/node_modules/morphdom/dist/morphdom.js new file mode 100644 index 0000000..301a663 --- /dev/null +++ b/node_modules/morphdom/dist/morphdom.js @@ -0,0 +1,776 @@ +'use strict'; + +var DOCUMENT_FRAGMENT_NODE = 11; + +function morphAttrs(fromNode, toNode) { + var toNodeAttrs = toNode.attributes; + var attr; + var attrName; + var attrNamespaceURI; + var attrValue; + var fromValue; + + // document-fragments dont have attributes so lets not do anything + if (toNode.nodeType === DOCUMENT_FRAGMENT_NODE || fromNode.nodeType === DOCUMENT_FRAGMENT_NODE) { + return; + } + + // update attributes on original DOM element + for (var i = toNodeAttrs.length - 1; i >= 0; i--) { + attr = toNodeAttrs[i]; + attrName = attr.name; + attrNamespaceURI = attr.namespaceURI; + attrValue = attr.value; + + if (attrNamespaceURI) { + attrName = attr.localName || attrName; + fromValue = fromNode.getAttributeNS(attrNamespaceURI, attrName); + + if (fromValue !== attrValue) { + if (attr.prefix === 'xmlns'){ + attrName = attr.name; // It's not allowed to set an attribute with the XMLNS namespace without specifying the `xmlns` prefix + } + fromNode.setAttributeNS(attrNamespaceURI, attrName, attrValue); + } + } else { + fromValue = fromNode.getAttribute(attrName); + + if (fromValue !== attrValue) { + fromNode.setAttribute(attrName, attrValue); + } + } + } + + // Remove any extra attributes found on the original DOM element that + // weren't found on the target element. + var fromNodeAttrs = fromNode.attributes; + + for (var d = fromNodeAttrs.length - 1; d >= 0; d--) { + attr = fromNodeAttrs[d]; + attrName = attr.name; + attrNamespaceURI = attr.namespaceURI; + + if (attrNamespaceURI) { + attrName = attr.localName || attrName; + + if (!toNode.hasAttributeNS(attrNamespaceURI, attrName)) { + fromNode.removeAttributeNS(attrNamespaceURI, attrName); + } + } else { + if (!toNode.hasAttribute(attrName)) { + fromNode.removeAttribute(attrName); + } + } + } +} + +var range; // Create a range object for efficently rendering strings to elements. +var NS_XHTML = 'http://www.w3.org/1999/xhtml'; + +var doc = typeof document === 'undefined' ? undefined : document; +var HAS_TEMPLATE_SUPPORT = !!doc && 'content' in doc.createElement('template'); +var HAS_RANGE_SUPPORT = !!doc && doc.createRange && 'createContextualFragment' in doc.createRange(); + +function createFragmentFromTemplate(str) { + var template = doc.createElement('template'); + template.innerHTML = str; + return template.content.childNodes[0]; +} + +function createFragmentFromRange(str) { + if (!range) { + range = doc.createRange(); + range.selectNode(doc.body); + } + + var fragment = range.createContextualFragment(str); + return fragment.childNodes[0]; +} + +function createFragmentFromWrap(str) { + var fragment = doc.createElement('body'); + fragment.innerHTML = str; + return fragment.childNodes[0]; +} + +/** + * This is about the same + * var html = new DOMParser().parseFromString(str, 'text/html'); + * return html.body.firstChild; + * + * @method toElement + * @param {String} str + */ +function toElement(str) { + str = str.trim(); + if (HAS_TEMPLATE_SUPPORT) { + // avoid restrictions on content for things like `<tr><th>Hi</th></tr>` which + // createContextualFragment doesn't support + // <template> support not available in IE + return createFragmentFromTemplate(str); + } else if (HAS_RANGE_SUPPORT) { + return createFragmentFromRange(str); + } + + return createFragmentFromWrap(str); +} + +/** + * Returns true if two node's names are the same. + * + * NOTE: We don't bother checking `namespaceURI` because you will never find two HTML elements with the same + * nodeName and different namespace URIs. + * + * @param {Element} a + * @param {Element} b The target element + * @return {boolean} + */ +function compareNodeNames(fromEl, toEl) { + var fromNodeName = fromEl.nodeName; + var toNodeName = toEl.nodeName; + var fromCodeStart, toCodeStart; + + if (fromNodeName === toNodeName) { + return true; + } + + fromCodeStart = fromNodeName.charCodeAt(0); + toCodeStart = toNodeName.charCodeAt(0); + + // If the target element is a virtual DOM node or SVG node then we may + // need to normalize the tag name before comparing. Normal HTML elements that are + // in the "http://www.w3.org/1999/xhtml" + // are converted to upper case + if (fromCodeStart <= 90 && toCodeStart >= 97) { // from is upper and to is lower + return fromNodeName === toNodeName.toUpperCase(); + } else if (toCodeStart <= 90 && fromCodeStart >= 97) { // to is upper and from is lower + return toNodeName === fromNodeName.toUpperCase(); + } else { + return false; + } +} + +/** + * Create an element, optionally with a known namespace URI. + * + * @param {string} name the element name, e.g. 'div' or 'svg' + * @param {string} [namespaceURI] the element's namespace URI, i.e. the value of + * its `xmlns` attribute or its inferred namespace. + * + * @return {Element} + */ +function createElementNS(name, namespaceURI) { + return !namespaceURI || namespaceURI === NS_XHTML ? + doc.createElement(name) : + doc.createElementNS(namespaceURI, name); +} + +/** + * Copies the children of one DOM element to another DOM element + */ +function moveChildren(fromEl, toEl) { + var curChild = fromEl.firstChild; + while (curChild) { + var nextChild = curChild.nextSibling; + toEl.appendChild(curChild); + curChild = nextChild; + } + return toEl; +} + +function syncBooleanAttrProp(fromEl, toEl, name) { + if (fromEl[name] !== toEl[name]) { + fromEl[name] = toEl[name]; + if (fromEl[name]) { + fromEl.setAttribute(name, ''); + } else { + fromEl.removeAttribute(name); + } + } +} + +var specialElHandlers = { + OPTION: function(fromEl, toEl) { + var parentNode = fromEl.parentNode; + if (parentNode) { + var parentName = parentNode.nodeName.toUpperCase(); + if (parentName === 'OPTGROUP') { + parentNode = parentNode.parentNode; + parentName = parentNode && parentNode.nodeName.toUpperCase(); + } + if (parentName === 'SELECT' && !parentNode.hasAttribute('multiple')) { + if (fromEl.hasAttribute('selected') && !toEl.selected) { + // Workaround for MS Edge bug where the 'selected' attribute can only be + // removed if set to a non-empty value: + // https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/12087679/ + fromEl.setAttribute('selected', 'selected'); + fromEl.removeAttribute('selected'); + } + // We have to reset select element's selectedIndex to -1, otherwise setting + // fromEl.selected using the syncBooleanAttrProp below has no effect. + // The correct selectedIndex will be set in the SELECT special handler below. + parentNode.selectedIndex = -1; + } + } + syncBooleanAttrProp(fromEl, toEl, 'selected'); + }, + /** + * The "value" attribute is special for the <input> element since it sets + * the initial value. Changing the "value" attribute without changing the + * "value" property will have no effect since it is only used to the set the + * initial value. Similar for the "checked" attribute, and "disabled". + */ + INPUT: function(fromEl, toEl) { + syncBooleanAttrProp(fromEl, toEl, 'checked'); + syncBooleanAttrProp(fromEl, toEl, 'disabled'); + + if (fromEl.value !== toEl.value) { + fromEl.value = toEl.value; + } + + if (!toEl.hasAttribute('value')) { + fromEl.removeAttribute('value'); + } + }, + + TEXTAREA: function(fromEl, toEl) { + var newValue = toEl.value; + if (fromEl.value !== newValue) { + fromEl.value = newValue; + } + + var firstChild = fromEl.firstChild; + if (firstChild) { + // Needed for IE. Apparently IE sets the placeholder as the + // node value and vise versa. This ignores an empty update. + var oldValue = firstChild.nodeValue; + + if (oldValue == newValue || (!newValue && oldValue == fromEl.placeholder)) { + return; + } + + firstChild.nodeValue = newValue; + } + }, + SELECT: function(fromEl, toEl) { + if (!toEl.hasAttribute('multiple')) { + var selectedIndex = -1; + var i = 0; + // We have to loop through children of fromEl, not toEl since nodes can be moved + // from toEl to fromEl directly when morphing. + // At the time this special handler is invoked, all children have already been morphed + // and appended to / removed from fromEl, so using fromEl here is safe and correct. + var curChild = fromEl.firstChild; + var optgroup; + var nodeName; + while(curChild) { + nodeName = curChild.nodeName && curChild.nodeName.toUpperCase(); + if (nodeName === 'OPTGROUP') { + optgroup = curChild; + curChild = optgroup.firstChild; + // handle empty optgroups + if (!curChild) { + curChild = optgroup.nextSibling; + optgroup = null; + } + } else { + if (nodeName === 'OPTION') { + if (curChild.hasAttribute('selected')) { + selectedIndex = i; + break; + } + i++; + } + curChild = curChild.nextSibling; + if (!curChild && optgroup) { + curChild = optgroup.nextSibling; + optgroup = null; + } + } + } + + fromEl.selectedIndex = selectedIndex; + } + } +}; + +var ELEMENT_NODE = 1; +var DOCUMENT_FRAGMENT_NODE$1 = 11; +var TEXT_NODE = 3; +var COMMENT_NODE = 8; + +function noop() {} + +function defaultGetNodeKey(node) { + if (node) { + return (node.getAttribute && node.getAttribute('id')) || node.id; + } +} + +function morphdomFactory(morphAttrs) { + + return function morphdom(fromNode, toNode, options) { + if (!options) { + options = {}; + } + + if (typeof toNode === 'string') { + if (fromNode.nodeName === '#document' || fromNode.nodeName === 'HTML' || fromNode.nodeName === 'BODY') { + var toNodeHtml = toNode; + toNode = doc.createElement('html'); + toNode.innerHTML = toNodeHtml; + } else { + toNode = toElement(toNode); + } + } else if (toNode.nodeType === DOCUMENT_FRAGMENT_NODE$1) { + toNode = toNode.firstElementChild; + } + + var getNodeKey = options.getNodeKey || defaultGetNodeKey; + var onBeforeNodeAdded = options.onBeforeNodeAdded || noop; + var onNodeAdded = options.onNodeAdded || noop; + var onBeforeElUpdated = options.onBeforeElUpdated || noop; + var onElUpdated = options.onElUpdated || noop; + var onBeforeNodeDiscarded = options.onBeforeNodeDiscarded || noop; + var onNodeDiscarded = options.onNodeDiscarded || noop; + var onBeforeElChildrenUpdated = options.onBeforeElChildrenUpdated || noop; + var skipFromChildren = options.skipFromChildren || noop; + var addChild = options.addChild || function(parent, child){ return parent.appendChild(child); }; + var childrenOnly = options.childrenOnly === true; + + // This object is used as a lookup to quickly find all keyed elements in the original DOM tree. + var fromNodesLookup = Object.create(null); + var keyedRemovalList = []; + + function addKeyedRemoval(key) { + keyedRemovalList.push(key); + } + + function walkDiscardedChildNodes(node, skipKeyedNodes) { + if (node.nodeType === ELEMENT_NODE) { + var curChild = node.firstChild; + while (curChild) { + + var key = undefined; + + if (skipKeyedNodes && (key = getNodeKey(curChild))) { + // If we are skipping keyed nodes then we add the key + // to a list so that it can be handled at the very end. + addKeyedRemoval(key); + } else { + // Only report the node as discarded if it is not keyed. We do this because + // at the end we loop through all keyed elements that were unmatched + // and then discard them in one final pass. + onNodeDiscarded(curChild); + if (curChild.firstChild) { + walkDiscardedChildNodes(curChild, skipKeyedNodes); + } + } + + curChild = curChild.nextSibling; + } + } + } + + /** + * Removes a DOM node out of the original DOM + * + * @param {Node} node The node to remove + * @param {Node} parentNode The nodes parent + * @param {Boolean} skipKeyedNodes If true then elements with keys will be skipped and not discarded. + * @return {undefined} + */ + function removeNode(node, parentNode, skipKeyedNodes) { + if (onBeforeNodeDiscarded(node) === false) { + return; + } + + if (parentNode) { + parentNode.removeChild(node); + } + + onNodeDiscarded(node); + walkDiscardedChildNodes(node, skipKeyedNodes); + } + + // // TreeWalker implementation is no faster, but keeping this around in case this changes in the future + // function indexTree(root) { + // var treeWalker = document.createTreeWalker( + // root, + // NodeFilter.SHOW_ELEMENT); + // + // var el; + // while((el = treeWalker.nextNode())) { + // var key = getNodeKey(el); + // if (key) { + // fromNodesLookup[key] = el; + // } + // } + // } + + // // NodeIterator implementation is no faster, but keeping this around in case this changes in the future + // + // function indexTree(node) { + // var nodeIterator = document.createNodeIterator(node, NodeFilter.SHOW_ELEMENT); + // var el; + // while((el = nodeIterator.nextNode())) { + // var key = getNodeKey(el); + // if (key) { + // fromNodesLookup[key] = el; + // } + // } + // } + + function indexTree(node) { + if (node.nodeType === ELEMENT_NODE || node.nodeType === DOCUMENT_FRAGMENT_NODE$1) { + var curChild = node.firstChild; + while (curChild) { + var key = getNodeKey(curChild); + if (key) { + fromNodesLookup[key] = curChild; + } + + // Walk recursively + indexTree(curChild); + + curChild = curChild.nextSibling; + } + } + } + + indexTree(fromNode); + + function handleNodeAdded(el) { + onNodeAdded(el); + + var curChild = el.firstChild; + while (curChild) { + var nextSibling = curChild.nextSibling; + + var key = getNodeKey(curChild); + if (key) { + var unmatchedFromEl = fromNodesLookup[key]; + // if we find a duplicate #id node in cache, replace `el` with cache value + // and morph it to the child node. + if (unmatchedFromEl && compareNodeNames(curChild, unmatchedFromEl)) { + curChild.parentNode.replaceChild(unmatchedFromEl, curChild); + morphEl(unmatchedFromEl, curChild); + } else { + handleNodeAdded(curChild); + } + } else { + // recursively call for curChild and it's children to see if we find something in + // fromNodesLookup + handleNodeAdded(curChild); + } + + curChild = nextSibling; + } + } + + function cleanupFromEl(fromEl, curFromNodeChild, curFromNodeKey) { + // We have processed all of the "to nodes". If curFromNodeChild is + // non-null then we still have some from nodes left over that need + // to be removed + while (curFromNodeChild) { + var fromNextSibling = curFromNodeChild.nextSibling; + if ((curFromNodeKey = getNodeKey(curFromNodeChild))) { + // Since the node is keyed it might be matched up later so we defer + // the actual removal to later + addKeyedRemoval(curFromNodeKey); + } else { + // NOTE: we skip nested keyed nodes from being removed since there is + // still a chance they will be matched up later + removeNode(curFromNodeChild, fromEl, true /* skip keyed nodes */); + } + curFromNodeChild = fromNextSibling; + } + } + + function morphEl(fromEl, toEl, childrenOnly) { + var toElKey = getNodeKey(toEl); + + if (toElKey) { + // If an element with an ID is being morphed then it will be in the final + // DOM so clear it out of the saved elements collection + delete fromNodesLookup[toElKey]; + } + + if (!childrenOnly) { + // optional + var beforeUpdateResult = onBeforeElUpdated(fromEl, toEl); + if (beforeUpdateResult === false) { + return; + } else if (beforeUpdateResult instanceof HTMLElement) { + fromEl = beforeUpdateResult; + // reindex the new fromEl in case it's not in the same + // tree as the original fromEl + // (Phoenix LiveView sometimes returns a cloned tree, + // but keyed lookups would still point to the original tree) + indexTree(fromEl); + } + + // update attributes on original DOM element first + morphAttrs(fromEl, toEl); + // optional + onElUpdated(fromEl); + + if (onBeforeElChildrenUpdated(fromEl, toEl) === false) { + return; + } + } + + if (fromEl.nodeName !== 'TEXTAREA') { + morphChildren(fromEl, toEl); + } else { + specialElHandlers.TEXTAREA(fromEl, toEl); + } + } + + function morphChildren(fromEl, toEl) { + var skipFrom = skipFromChildren(fromEl, toEl); + var curToNodeChild = toEl.firstChild; + var curFromNodeChild = fromEl.firstChild; + var curToNodeKey; + var curFromNodeKey; + + var fromNextSibling; + var toNextSibling; + var matchingFromEl; + + // walk the children + outer: while (curToNodeChild) { + toNextSibling = curToNodeChild.nextSibling; + curToNodeKey = getNodeKey(curToNodeChild); + + // walk the fromNode children all the way through + while (!skipFrom && curFromNodeChild) { + fromNextSibling = curFromNodeChild.nextSibling; + + if (curToNodeChild.isSameNode && curToNodeChild.isSameNode(curFromNodeChild)) { + curToNodeChild = toNextSibling; + curFromNodeChild = fromNextSibling; + continue outer; + } + + curFromNodeKey = getNodeKey(curFromNodeChild); + + var curFromNodeType = curFromNodeChild.nodeType; + + // this means if the curFromNodeChild doesnt have a match with the curToNodeChild + var isCompatible = undefined; + + if (curFromNodeType === curToNodeChild.nodeType) { + if (curFromNodeType === ELEMENT_NODE) { + // Both nodes being compared are Element nodes + + if (curToNodeKey) { + // The target node has a key so we want to match it up with the correct element + // in the original DOM tree + if (curToNodeKey !== curFromNodeKey) { + // The current element in the original DOM tree does not have a matching key so + // let's check our lookup to see if there is a matching element in the original + // DOM tree + if ((matchingFromEl = fromNodesLookup[curToNodeKey])) { + if (fromNextSibling === matchingFromEl) { + // Special case for single element removals. To avoid removing the original + // DOM node out of the tree (since that can break CSS transitions, etc.), + // we will instead discard the current node and wait until the next + // iteration to properly match up the keyed target element with its matching + // element in the original tree + isCompatible = false; + } else { + // We found a matching keyed element somewhere in the original DOM tree. + // Let's move the original DOM node into the current position and morph + // it. + + // NOTE: We use insertBefore instead of replaceChild because we want to go through + // the `removeNode()` function for the node that is being discarded so that + // all lifecycle hooks are correctly invoked + fromEl.insertBefore(matchingFromEl, curFromNodeChild); + + // fromNextSibling = curFromNodeChild.nextSibling; + + if (curFromNodeKey) { + // Since the node is keyed it might be matched up later so we defer + // the actual removal to later + addKeyedRemoval(curFromNodeKey); + } else { + // NOTE: we skip nested keyed nodes from being removed since there is + // still a chance they will be matched up later + removeNode(curFromNodeChild, fromEl, true /* skip keyed nodes */); + } + + curFromNodeChild = matchingFromEl; + curFromNodeKey = getNodeKey(curFromNodeChild); + } + } else { + // The nodes are not compatible since the "to" node has a key and there + // is no matching keyed node in the source tree + isCompatible = false; + } + } + } else if (curFromNodeKey) { + // The original has a key + isCompatible = false; + } + + isCompatible = isCompatible !== false && compareNodeNames(curFromNodeChild, curToNodeChild); + if (isCompatible) { + // We found compatible DOM elements so transform + // the current "from" node to match the current + // target DOM node. + // MORPH + morphEl(curFromNodeChild, curToNodeChild); + } + + } else if (curFromNodeType === TEXT_NODE || curFromNodeType == COMMENT_NODE) { + // Both nodes being compared are Text or Comment nodes + isCompatible = true; + // Simply update nodeValue on the original node to + // change the text value + if (curFromNodeChild.nodeValue !== curToNodeChild.nodeValue) { + curFromNodeChild.nodeValue = curToNodeChild.nodeValue; + } + + } + } + + if (isCompatible) { + // Advance both the "to" child and the "from" child since we found a match + // Nothing else to do as we already recursively called morphChildren above + curToNodeChild = toNextSibling; + curFromNodeChild = fromNextSibling; + continue outer; + } + + // No compatible match so remove the old node from the DOM and continue trying to find a + // match in the original DOM. However, we only do this if the from node is not keyed + // since it is possible that a keyed node might match up with a node somewhere else in the + // target tree and we don't want to discard it just yet since it still might find a + // home in the final DOM tree. After everything is done we will remove any keyed nodes + // that didn't find a home + if (curFromNodeKey) { + // Since the node is keyed it might be matched up later so we defer + // the actual removal to later + addKeyedRemoval(curFromNodeKey); + } else { + // NOTE: we skip nested keyed nodes from being removed since there is + // still a chance they will be matched up later + removeNode(curFromNodeChild, fromEl, true /* skip keyed nodes */); + } + + curFromNodeChild = fromNextSibling; + } // END: while(curFromNodeChild) {} + + // If we got this far then we did not find a candidate match for + // our "to node" and we exhausted all of the children "from" + // nodes. Therefore, we will just append the current "to" node + // to the end + if (curToNodeKey && (matchingFromEl = fromNodesLookup[curToNodeKey]) && compareNodeNames(matchingFromEl, curToNodeChild)) { + // MORPH + if(!skipFrom){ addChild(fromEl, matchingFromEl); } + morphEl(matchingFromEl, curToNodeChild); + } else { + var onBeforeNodeAddedResult = onBeforeNodeAdded(curToNodeChild); + if (onBeforeNodeAddedResult !== false) { + if (onBeforeNodeAddedResult) { + curToNodeChild = onBeforeNodeAddedResult; + } + + if (curToNodeChild.actualize) { + curToNodeChild = curToNodeChild.actualize(fromEl.ownerDocument || doc); + } + addChild(fromEl, curToNodeChild); + handleNodeAdded(curToNodeChild); + } + } + + curToNodeChild = toNextSibling; + curFromNodeChild = fromNextSibling; + } + + cleanupFromEl(fromEl, curFromNodeChild, curFromNodeKey); + + var specialElHandler = specialElHandlers[fromEl.nodeName]; + if (specialElHandler) { + specialElHandler(fromEl, toEl); + } + } // END: morphChildren(...) + + var morphedNode = fromNode; + var morphedNodeType = morphedNode.nodeType; + var toNodeType = toNode.nodeType; + + if (!childrenOnly) { + // Handle the case where we are given two DOM nodes that are not + // compatible (e.g. <div> --> <span> or <div> --> TEXT) + if (morphedNodeType === ELEMENT_NODE) { + if (toNodeType === ELEMENT_NODE) { + if (!compareNodeNames(fromNode, toNode)) { + onNodeDiscarded(fromNode); + morphedNode = moveChildren(fromNode, createElementNS(toNode.nodeName, toNode.namespaceURI)); + } + } else { + // Going from an element node to a text node + morphedNode = toNode; + } + } else if (morphedNodeType === TEXT_NODE || morphedNodeType === COMMENT_NODE) { // Text or comment node + if (toNodeType === morphedNodeType) { + if (morphedNode.nodeValue !== toNode.nodeValue) { + morphedNode.nodeValue = toNode.nodeValue; + } + + return morphedNode; + } else { + // Text node to something else + morphedNode = toNode; + } + } + } + + if (morphedNode === toNode) { + // The "to node" was not compatible with the "from node" so we had to + // toss out the "from node" and use the "to node" + onNodeDiscarded(fromNode); + } else { + if (toNode.isSameNode && toNode.isSameNode(morphedNode)) { + return; + } + + morphEl(morphedNode, toNode, childrenOnly); + + // We now need to loop over any keyed nodes that might need to be + // removed. We only do the removal if we know that the keyed node + // never found a match. When a keyed node is matched up we remove + // it out of fromNodesLookup and we use fromNodesLookup to determine + // if a keyed node has been matched up or not + if (keyedRemovalList) { + for (var i=0, len=keyedRemovalList.length; i<len; i++) { + var elToRemove = fromNodesLookup[keyedRemovalList[i]]; + if (elToRemove) { + removeNode(elToRemove, elToRemove.parentNode, false); + } + } + } + } + + if (!childrenOnly && morphedNode !== fromNode && fromNode.parentNode) { + if (morphedNode.actualize) { + morphedNode = morphedNode.actualize(fromNode.ownerDocument || doc); + } + // If we had to swap out the from node with a new node because the old + // node was not compatible with the target node then we need to + // replace the old DOM node in the original DOM tree. This is only + // possible if the original DOM node was part of a DOM tree which + // we know is the case if it has a parent node. + fromNode.parentNode.replaceChild(morphedNode, fromNode); + } + + return morphedNode; + }; +} + +var morphdom = morphdomFactory(morphAttrs); + +module.exports = morphdom; |
