feat: 引入 Keyed Each 与节点回收机制，大幅提升列表滚动与排序性能 (by AI)
This commit is contained in:
AI Engineer
parent
d688483f5a
commit
c0d089a990
54
dist/state.js
vendored
54
dist/state.js
vendored
@ -213,7 +213,10 @@ function _updateBinding(binding) {
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const node = binding.node;
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if (!node.isConnected && node.tagName !== "TEMPLATE") return;
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setActiveBinding(binding);
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if (window.__perfTrace) window.__perfTrace.evalCount++;
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const evalStart = window.__perfTrace ? performance.now() : 0;
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let result = binding.exp ? binding.tpl ? _returnCode(binding.tpl, { thisNode: node }, node._thisObj || node, node._ref || null) : null : binding.tpl;
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if (window.__perfTrace) window.__perfTrace.evalTotal += performance.now() - evalStart;
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setActiveBinding(null);
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if (binding.prop) {
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const prop = binding.prop;
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@ -241,10 +244,13 @@ function _updateBinding(binding) {
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if (result) {
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if (!node._renderedNodes || node._renderedNodes.length === 0) {
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node._children.forEach((child) => {
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child._stManaged = true;
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node.parentNode.insertBefore(child, node);
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child._ref = { ...node._ref };
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});
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node._renderedNodes = [node._children];
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} else {
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node._renderedNodes[0].forEach((child) => _scanTree(child, { thisObj: node._thisObj, extendVars: child._ref }));
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}
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} else {
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_clearRenderedNodes(node);
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@ -254,6 +260,7 @@ function _updateBinding(binding) {
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if (result && typeof result === "object") {
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const asName = node.getAttribute("as") || "item";
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const indexName = node.getAttribute("index") || "index";
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const keyName = node.getAttribute("key");
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let keys, getVal;
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if (result instanceof Map) {
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keys = Array.from(result.keys());
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@ -267,35 +274,50 @@ function _updateBinding(binding) {
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keys = Object.keys(result);
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getVal = (k) => result[k];
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}
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if (!node._keyedNodes) node._keyedNodes = /* @__PURE__ */ new Map();
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const newKeyedNodes = /* @__PURE__ */ new Map();
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const currentRenderedNodes = [];
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keys.forEach((k, i) => {
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const item = getVal(k);
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if (node._renderedNodes && i < node._renderedNodes.length) {
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node._renderedNodes[i].forEach((child) => {
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const rawKey = keyName ? item && typeof item === "object" ? item[keyName] : item : k;
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const keyVal = rawKey === void 0 || rawKey === null || newKeyedNodes.has(rawKey) ? `st_key_fallback_${i}_${Math.random()}` : rawKey;
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let existingNodes = node._keyedNodes.get(keyVal);
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if (existingNodes) {
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node._keyedNodes.delete(keyVal);
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existingNodes.forEach((child) => {
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child._ref[indexName] = k;
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child._ref[asName] = item;
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_scanTree(child, { thisObj: node._thisObj, extendVars: child._ref });
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if (child._ref[asName] !== item) {
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child._ref[asName] = item;
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_scanTree(child, { thisObj: node._thisObj, extendVars: child._ref });
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} else if (node.parentNode.lastChild !== child) {
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node.parentNode.insertBefore(child, node);
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}
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});
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} else {
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const newNodes = [];
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if (!node._renderedNodes) node._renderedNodes = [];
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existingNodes = [];
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node._children.forEach((child) => {
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const cloned = child.cloneNode(true);
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cloned._stManaged = true;
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cloned._ref = { ...node._ref, [indexName]: k, [asName]: item };
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cloned._thisObj = node._thisObj;
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node.parentNode.insertBefore(cloned, node);
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newNodes.push(cloned);
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existingNodes.push(cloned);
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});
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node._renderedNodes.push(newNodes);
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}
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newKeyedNodes.set(keyVal, existingNodes);
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currentRenderedNodes.push(existingNodes);
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existingNodes.forEach((child) => node.parentNode.insertBefore(child, node));
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});
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while (node._renderedNodes && node._renderedNodes.length > keys.length) {
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node._renderedNodes.pop().forEach((child) => {
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_clearRenderedNodes(child);
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child.remove();
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});
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}
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node._keyedNodes.forEach((nodes) => nodes.forEach((child) => {
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_clearRenderedNodes(child);
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child.remove();
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}));
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node._keyedNodes = newKeyedNodes;
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node._renderedNodes = currentRenderedNodes;
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} else {
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_clearRenderedNodes(node);
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if (node._keyedNodes) node._keyedNodes.forEach((nodes) => nodes.forEach((child) => child.remove()));
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node._keyedNodes = /* @__PURE__ */ new Map();
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node._renderedNodes = [];
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}
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} else if (attr === "bind") {
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@ -492,7 +514,9 @@ const _scanTree = (node, scanObj = {}) => {
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_parseNode(node, scanObj);
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const nodes = [...node.childNodes || []];
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const nextScanObj = { thisObj: scanObj.thisObj, extendVars: { ...node._ref } };
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nodes.forEach((child) => _scanTree(child, nextScanObj));
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nodes.forEach((child) => {
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if (!child._stManaged) _scanTree(child, nextScanObj);
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});
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};
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const _unbindTree = (node) => {
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if (node.nodeType !== 1) return;
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2
dist/state.min.js
vendored
2
dist/state.min.js
vendored
File diff suppressed because one or more lines are too long
69
src/dom.js
69
src/dom.js
@ -49,7 +49,10 @@ export function _updateBinding(binding) {
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if (!node.isConnected && node.tagName !== 'TEMPLATE') return;
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setActiveBinding(binding);
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if (window.__perfTrace) window.__perfTrace.evalCount++;
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const evalStart = window.__perfTrace ? performance.now() : 0;
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let result = binding.exp ? (binding.tpl ? _returnCode(binding.tpl, { thisNode: node }, node._thisObj || node, node._ref || null) : null) : binding.tpl;
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if (window.__perfTrace) window.__perfTrace.evalTotal += (performance.now() - evalStart);
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setActiveBinding(null);
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if (binding.prop) {
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@ -78,10 +81,13 @@ export function _updateBinding(binding) {
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if (result) {
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if (!node._renderedNodes || node._renderedNodes.length === 0) {
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node._children.forEach(child => {
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child._stManaged = true;
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node.parentNode.insertBefore(child, node);
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child._ref = { ...node._ref };
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});
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node._renderedNodes = [node._children];
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} else {
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node._renderedNodes[0].forEach(child => _scanTree(child, { thisObj: node._thisObj, extendVars: child._ref }));
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}
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} else {
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_clearRenderedNodes(node);
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@ -91,48 +97,71 @@ export function _updateBinding(binding) {
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if (result && typeof result === 'object') {
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const asName = node.getAttribute('as') || 'item';
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const indexName = node.getAttribute('index') || 'index';
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const keyName = node.getAttribute('key');
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let keys, getVal;
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if (result instanceof Map) {
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keys = Array.from(result.keys());
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getVal = k => result.get(k);
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keys = Array.from(result.keys()); getVal = k => result.get(k);
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} else if (typeof result[Symbol.iterator] === 'function') {
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const arr = Array.isArray(result) ? result : Array.from(result);
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keys = new Array(arr.length);
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for (let i = 0; i < arr.length; i++) keys[i] = i;
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getVal = k => arr[k];
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} else {
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keys = Object.keys(result);
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getVal = k => result[k];
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keys = Object.keys(result); getVal = k => result[k];
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}
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if (!node._keyedNodes) node._keyedNodes = new Map();
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const newKeyedNodes = new Map();
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const currentRenderedNodes = [];
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keys.forEach((k, i) => {
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const item = getVal(k);
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if (node._renderedNodes && i < node._renderedNodes.length) {
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node._renderedNodes[i].forEach(child => {
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const rawKey = keyName ? (item && typeof item === 'object' ? item[keyName] : item) : k;
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// Safety: Handle potential duplicate keys or undefined keys
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const keyVal = (rawKey === undefined || rawKey === null || newKeyedNodes.has(rawKey)) ? `st_key_fallback_${i}_${Math.random()}` : rawKey;
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let existingNodes = node._keyedNodes.get(keyVal);
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if (existingNodes) {
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// Reuse existing nodes
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node._keyedNodes.delete(keyVal);
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existingNodes.forEach(child => {
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child._ref[indexName] = k;
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child._ref[asName] = item;
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_scanTree(child, { thisObj: node._thisObj, extendVars: child._ref });
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// If data reference hasn't changed, skip heavy scan
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if (child._ref[asName] !== item) {
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child._ref[asName] = item;
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_scanTree(child, { thisObj: node._thisObj, extendVars: child._ref });
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} else if (node.parentNode.lastChild !== child) {
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// Just move to the end to maintain order
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node.parentNode.insertBefore(child, node);
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}
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});
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} else {
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const newNodes = [];
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if (!node._renderedNodes) node._renderedNodes = [];
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// Create new nodes
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existingNodes = [];
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node._children.forEach(child => {
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const cloned = child.cloneNode(true);
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cloned._stManaged = true;
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cloned._ref = { ...node._ref, [indexName]: k, [asName]: item };
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cloned._thisObj = node._thisObj;
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node.parentNode.insertBefore(cloned, node);
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newNodes.push(cloned);
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existingNodes.push(cloned);
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});
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node._renderedNodes.push(newNodes);
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}
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newKeyedNodes.set(keyVal, existingNodes);
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currentRenderedNodes.push(existingNodes);
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// Ensure DOM order
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existingNodes.forEach(child => node.parentNode.insertBefore(child, node));
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});
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while (node._renderedNodes && node._renderedNodes.length > keys.length) {
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node._renderedNodes.pop().forEach(child => {
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_clearRenderedNodes(child);
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child.remove();
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});
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}
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// Cleanup old nodes
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node._keyedNodes.forEach(nodes => nodes.forEach(child => { _clearRenderedNodes(child); child.remove(); }));
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node._keyedNodes = newKeyedNodes;
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node._renderedNodes = currentRenderedNodes;
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} else {
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_clearRenderedNodes(node);
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if (node._keyedNodes) node._keyedNodes.forEach(nodes => nodes.forEach(child => child.remove()));
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node._keyedNodes = new Map();
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node._renderedNodes = [];
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}
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} else if (attr === 'bind') {
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@ -322,7 +351,9 @@ export const _scanTree = (node, scanObj = {}) => {
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const nodes = [...(node.childNodes || [])];
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const nextScanObj = { thisObj: scanObj.thisObj, extendVars: { ...node._ref } };
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nodes.forEach(child => _scanTree(child, nextScanObj));
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nodes.forEach(child => {
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if (!child._stManaged) _scanTree(child, nextScanObj);
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});
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};
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export const _unbindTree = (node) => {
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352
src/dom.js.keyed.bak
Normal file
352
src/dom.js.keyed.bak
Normal file
@ -0,0 +1,352 @@
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// src/dom.js
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import { _runCode, _returnCode, setDisableRunCodeError } from './core.js';
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import { getActiveBinding, setActiveBinding, getNoWriteBack, setNoWriteBack, NewState, onNotifyUpdate } from './observer.js';
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import { Component, _makeComponent, _mergeNode } from './component.js';
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import { $, $$ } from './dom-utils.js';
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let _translator = (text, args) => {
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if (!text || typeof text !== 'string') return text;
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return text.replace(/\{(.+?)\}/g, (match, key) => args.hasOwnProperty(key) ? args[key] : match);
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};
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export const SetTranslator = (fn) => _translator = fn;
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const _translate = (text) => {
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if (!text || typeof text !== 'string' || !text.includes('{#')) return text;
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return text.replace(/\{#(.+?)#\}/g, (m, content) => {
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const parts = content.split('||').map(s => s.trim());
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const args = {};
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if (parts.length > 1) {
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const matches = parts[0].match(/\{(.+?)\}/g);
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if (matches) matches.forEach((match, i) => args[match.substring(1, match.length - 1)] = parts[i + 1] || '');
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}
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return _translator(parts[0], args);
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});
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};
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if (typeof document !== 'undefined') {
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try { document.createElement('div').setAttribute('$t', '1'); } catch (e) {
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const originalSetAttribute = Element.prototype.setAttribute;
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Element.prototype.setAttribute = function (name, value) {
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if (!name.startsWith('$')) return originalSetAttribute.call(this, name, value);
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return originalSetAttribute.call(this, 'st-' + name.substring(1), value);
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};
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}
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}
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export { $, $$ };
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onNotifyUpdate((binding) => _updateBinding(binding));
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export function _clearRenderedNodes(node) {
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if (node._renderedNodes) node._renderedNodes.forEach(nodes => nodes.forEach(child => {
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child.remove();
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if (child._renderedNodes) _clearRenderedNodes(child);
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}));
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}
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export function _updateBinding(binding) {
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const node = binding.node;
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if (!node.isConnected && node.tagName !== 'TEMPLATE') return;
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setActiveBinding(binding);
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if (window.__perfTrace) window.__perfTrace.evalCount++;
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const evalStart = window.__perfTrace ? performance.now() : 0;
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let result = binding.exp ? (binding.tpl ? _returnCode(binding.tpl, { thisNode: node }, node._thisObj || node, node._ref || null) : null) : binding.tpl;
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if (window.__perfTrace) window.__perfTrace.evalTotal += (performance.now() - evalStart);
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setActiveBinding(null);
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if (binding.prop) {
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const prop = binding.prop;
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let o = node;
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for (let i = 0; i < prop.length - 1; i++) {
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if (!prop[i]) continue;
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if (o[prop[i]] == null) o[prop[i]] = {};
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o = o[prop[i]];
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if (typeof o !== 'object') break;
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}
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if (typeof o === 'object' && o !== null) {
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const lk = prop[prop.length - 1];
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if (lk) {
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if (typeof result === 'object' && result != null && !Array.isArray(result) && o[lk] == null) o[lk] = {};
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const lo = o[lk];
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if (typeof lo === 'object' && lo != null && lo.__watch) Object.assign(lo, result);
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else o[lk] = result;
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} else if (typeof result === 'object' && result != null && !Array.isArray(result)) {
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Object.assign(o, result);
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}
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}
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} else if (binding.attr) {
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const attr = binding.attr;
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if (attr === 'if') {
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if (result) {
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if (!node._renderedNodes || node._renderedNodes.length === 0) {
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node._children.forEach(child => {
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child._stManaged = true;
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node.parentNode.insertBefore(child, node);
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child._ref = { ...node._ref };
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});
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node._renderedNodes = [node._children];
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} else {
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node._renderedNodes[0].forEach(child => _scanTree(child, { thisObj: node._thisObj, extendVars: child._ref }));
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}
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} else {
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_clearRenderedNodes(node);
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node._renderedNodes = [];
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}
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} else if (attr === 'each') {
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if (result && typeof result === 'object') {
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const asName = node.getAttribute('as') || 'item';
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const indexName = node.getAttribute('index') || 'index';
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let keys, getVal;
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if (result instanceof Map) {
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keys = Array.from(result.keys());
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getVal = k => result.get(k);
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} else if (typeof result[Symbol.iterator] === 'function') {
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const arr = Array.isArray(result) ? result : Array.from(result);
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keys = new Array(arr.length);
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for (let i = 0; i < arr.length; i++) keys[i] = i;
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getVal = k => arr[k];
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} else {
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keys = Object.keys(result);
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getVal = k => result[k];
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}
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keys.forEach((k, i) => {
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const item = getVal(k);
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if (node._renderedNodes && i < node._renderedNodes.length) {
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node._renderedNodes[i].forEach(child => {
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child._ref[indexName] = k;
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child._ref[asName] = item;
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// 性能探针：记录节点复用时的 _scanTree 耗时
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if (window.__perfTrace) window.__perfTrace.eachUpdateCount++;
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const start = window.__perfTrace ? performance.now() : 0;
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_scanTree(child, { thisObj: node._thisObj, extendVars: child._ref });
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if (window.__perfTrace) window.__perfTrace.eachUpdateTotal += (performance.now() - start);
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});
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} else {
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const newNodes = [];
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if (!node._renderedNodes) node._renderedNodes = [];
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node._children.forEach(child => {
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const cloned = child.cloneNode(true);
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cloned._stManaged = true;
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cloned._ref = { ...node._ref, [indexName]: k, [asName]: item };
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cloned._thisObj = node._thisObj;
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node.parentNode.insertBefore(cloned, node);
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newNodes.push(cloned);
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});
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node._renderedNodes.push(newNodes);
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}
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});
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while (node._renderedNodes && node._renderedNodes.length > keys.length) {
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node._renderedNodes.pop().forEach(child => {
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_clearRenderedNodes(child);
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child.remove();
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});
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}
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} else {
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_clearRenderedNodes(node);
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node._renderedNodes = [];
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}
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} else if (attr === 'bind') {
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if (['INPUT', 'SELECT', 'TEXTAREA'].includes(node.tagName) && !node.hasAttribute('autocomplete')) node.setAttribute('autocomplete', 'off');
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if (node.type === 'checkbox') {
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if (node.value !== 'on' && !result) { _runCode(`${binding.tpl} = []`, { thisNode: node }, node._thisObj || node, node._ref || {}); result = []; }
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node._checkboxMultiMode = result instanceof Array;
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const isChecked = result instanceof Array ? result.includes(node.value) : !!result;
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if (node.checked !== isChecked) node.checked = isChecked;
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} else if (node.type === 'radio') {
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if (node.checked !== (node.value === String(result ?? ''))) node.checked = (node.value === String(result ?? ''));
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} else if ('value' in node && node.type !== 'file') {
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setTimeout(() => { if (node.value !== String(result ?? '')) node.value = result; });
|
||||
} else if (node.isContentEditable) {
|
||||
if (node.innerHTML !== String(result ?? '')) node.innerHTML = result;
|
||||
}
|
||||
node.dispatchEvent(new CustomEvent('bind', { bubbles: false, detail: result }));
|
||||
} else {
|
||||
if (['checked', 'disabled', 'readonly'].includes(attr)) result = !!result;
|
||||
if (typeof result === 'boolean') result ? node.setAttribute(attr, '') : node.removeAttribute(attr);
|
||||
else if (result !== undefined) {
|
||||
if (typeof result !== 'string') result = JSON.stringify(result);
|
||||
if (attr === 'text') node.textContent = result ?? '';
|
||||
else if (attr === 'html') node.innerHTML = result ?? '';
|
||||
else if (node.tagName === 'IMG' && attr === 'src' && result.includes('.svg')) node.setAttribute('_src', result ?? '');
|
||||
else node.setAttribute(attr, result ?? '');
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
export const _initBinding = (binding) => {
|
||||
if (!binding.node._bindings) binding.node._bindings = [];
|
||||
binding.node._bindings.push({ attr: binding.attr, prop: binding.prop, tpl: binding.tpl, exp: binding.exp });
|
||||
_updateBinding(binding);
|
||||
};
|
||||
|
||||
export const _parseNode = (node, scanObj) => {
|
||||
let hasBindings = false;
|
||||
if (node._bindings) {
|
||||
node._states = new Set();
|
||||
node._bindings.forEach(b => _updateBinding({ node, ...b }));
|
||||
if (node._hasOnUpdate) node.dispatchEvent(new Event('update', { bubbles: false }));
|
||||
hasBindings = true;
|
||||
}
|
||||
|
||||
if (Component.exists(node.tagName) && !node._componentInitialized) {
|
||||
Array.from(node.attributes).forEach(attr => {
|
||||
if (attr.name.startsWith('$.')) {
|
||||
const realAttrName = attr.name.slice(2);
|
||||
let tpl = _translate(attr.value);
|
||||
if (tpl.includes('this.')) tpl = tpl.replace(/\bthis\./g, 'this.parent.');
|
||||
const result = _returnCode(tpl, { thisNode: node }, { parent: scanObj.thisObj || node }, node._ref || {});
|
||||
let o = node;
|
||||
const prop = realAttrName.split('.');
|
||||
for (let i = 0; i < prop.length - 1; i++) { if (prop[i]) o = (o[prop[i]] ??= {}); }
|
||||
o[prop[prop.length - 1]] = result;
|
||||
node.removeAttribute(attr.name);
|
||||
}
|
||||
});
|
||||
_makeComponent(node.tagName, node, scanObj);
|
||||
$$(node, '[slot-id]').forEach(p => p.removeAttribute('slot-id'));
|
||||
node._componentInitialized = true;
|
||||
if (!node._thisObj) node._thisObj = node;
|
||||
}
|
||||
|
||||
if (node.tagName === 'TEMPLATE') {
|
||||
node._children = [...node.content.childNodes];
|
||||
if (!node._renderedNodes) node._renderedNodes = [];
|
||||
}
|
||||
|
||||
if (hasBindings) return;
|
||||
|
||||
let attrs = [];
|
||||
if (node.tagName === 'TEMPLATE') {
|
||||
['$if', '$each', 'st-if', 'st-each'].forEach(n => node.hasAttribute(n) && attrs.push(node.getAttributeNode(n)));
|
||||
} else {
|
||||
attrs = Array.from(node.attributes).filter(a => (a.name.startsWith('$') || a.name.startsWith('st-')) && !['$if', '$each', 'st-if', 'st-each'].includes(a.name) || a.name.includes('.'));
|
||||
}
|
||||
|
||||
if (node._thisObj && scanObj.thisObj) node._thisObj.parent = scanObj.thisObj;
|
||||
if (!node._thisObj) node._thisObj = scanObj.thisObj || null;
|
||||
if (!node._ref) node._ref = scanObj.extendVars || {};
|
||||
node._states = new Set();
|
||||
|
||||
attrs.forEach(attr => {
|
||||
const exp = attr.name.startsWith('$') || attr.name.startsWith('st-');
|
||||
const realAttrName = exp ? attr.name.slice(attr.name.startsWith('$') ? 1 : 3) : attr.name;
|
||||
let tpl = attr.value;
|
||||
node.removeAttribute(attr.name);
|
||||
if (realAttrName.startsWith('.')) _initBinding({ node, prop: realAttrName.split('.'), tpl, exp });
|
||||
else if (realAttrName.startsWith('on')) {
|
||||
const eventName = realAttrName.slice(2);
|
||||
if (eventName === 'update') node._hasOnUpdate = true;
|
||||
if (eventName === 'load' && !['BODY', 'IMG', 'IFRAME'].includes(node.tagName)) node._hasOnLoad = true;
|
||||
if (eventName === 'unload' && !['BODY', 'IMG', 'IFRAME'].includes(node.tagName)) node._hasOnUnload = true;
|
||||
node.addEventListener(eventName, (e) => _runCode(tpl, { event: e, thisNode: node, ...(e.detail || {}) }, scanObj.thisObj || node, node._ref || {}));
|
||||
} else {
|
||||
if (realAttrName === 'bind') {
|
||||
node.addEventListener(node.tagName === 'TEXTAREA' || node.isContentEditable || node.type === 'text' || node.type === 'password' ? 'input' : 'change', (e) => {
|
||||
let newVal = node.isContentEditable ? e.target.innerHTML : (node.type === 'checkbox' ? e.target.checked : e.target.files || e.target.value || e.detail);
|
||||
setNoWriteBack(node); setDisableRunCodeError(true);
|
||||
if (node.type === 'checkbox' && node._checkboxMultiMode) _runCode(`!!checked ? (!${tpl}.includes(val) && ${tpl}.push(val)) : (index = ${tpl}.indexOf(val), index > -1 && ${tpl}.splice(index, 1))`, { val: node.value, checked: newVal, thisNode: node }, scanObj.thisObj || node, node._ref || {});
|
||||
else _runCode(`${tpl} = val`, { val: newVal, thisNode: node }, scanObj.thisObj || node, node._ref || {});
|
||||
setDisableRunCodeError(false); setNoWriteBack(null);
|
||||
});
|
||||
} else if (realAttrName === 'text' && !tpl) { tpl = node.textContent; node.textContent = ''; }
|
||||
if (tpl) { tpl = _translate(tpl); _initBinding({ node, attr: realAttrName, tpl, exp }); }
|
||||
}
|
||||
});
|
||||
|
||||
if (node._hasOnLoad || node._componentInitialized) Promise.resolve().then(() => node.dispatchEvent(new Event('load', { bubbles: false })));
|
||||
if (node._hasOnUpdate) node.dispatchEvent(new Event('update', { bubbles: false }));
|
||||
if (node._thisObj) scanObj.thisObj = node._thisObj;
|
||||
};
|
||||
|
||||
export const _scanTree = (node, scanObj = {}) => {
|
||||
if (node.nodeType === 3) {
|
||||
if (node._stTranslated) return;
|
||||
const translated = _translate(node.textContent);
|
||||
if (translated !== node.textContent) node.textContent = translated;
|
||||
node._stTranslated = true; return;
|
||||
}
|
||||
if (node.nodeType !== 1) return;
|
||||
|
||||
if (!node._stTranslated) {
|
||||
Array.from(node.attributes).forEach(attr => {
|
||||
if (!attr.name.startsWith('$') && !attr.name.startsWith('st-') && !attr.name.startsWith('.')) {
|
||||
const translated = _translate(attr.value);
|
||||
if (translated !== attr.value) attr.value = translated;
|
||||
}
|
||||
});
|
||||
node._stTranslated = true;
|
||||
}
|
||||
|
||||
if (node.tagName !== 'TEMPLATE' && (node.hasAttribute('$if') || node.hasAttribute('$each') || node.hasAttribute('st-if') || node.hasAttribute('st-each'))) {
|
||||
const template = document.createElement('TEMPLATE');
|
||||
const attrs = Array.from(node.attributes).filter(attr => ['$if', '$each', 'st-if', 'st-each'].includes(attr.name) || ((node.hasAttribute('$each') || node.hasAttribute('st-each')) && ['as', 'index'].includes(attr.name)));
|
||||
attrs.forEach(attr => { template.setAttribute(attr.name, attr.value); node.removeAttribute(attr.name); });
|
||||
node.parentNode.insertBefore(template, node);
|
||||
template.content.appendChild(node);
|
||||
template._ref = node._ref;
|
||||
return;
|
||||
}
|
||||
if (node.tagName === 'TEMPLATE' && (node.hasAttribute('$if') || node.hasAttribute('st-if')) && (node.hasAttribute('$each') || node.hasAttribute('st-each'))) {
|
||||
const template = document.createElement('TEMPLATE');
|
||||
const attrs = Array.from(node.attributes).filter(attr => ['$if', '$each', 'st-if', 'st-each'].includes(attr.name));
|
||||
const attr = attrs[attrs.length - 1];
|
||||
template.setAttribute(attr.name, attr.value);
|
||||
node.removeAttribute(attr.name);
|
||||
if (attr.name === '$each' || attr.name === 'st-each') {
|
||||
Array.from(node.attributes).filter(attr => ['as', 'index'].includes(attr.name)).forEach(attr => { template.setAttribute(attr.name, attr.value); node.removeAttribute(attr.name); });
|
||||
}
|
||||
Array.from(node.content.childNodes).forEach(child => template.content.appendChild(child));
|
||||
node.content.appendChild(template);
|
||||
template._ref = node._ref;
|
||||
}
|
||||
|
||||
if (node.tagName === 'IMG' && (node.hasAttribute('src') || node.hasAttribute('_src') || node.hasAttribute('$src'))) {
|
||||
const imgNode = node;
|
||||
Promise.resolve().then(() => {
|
||||
const url = imgNode.getAttribute('_src') || imgNode.getAttribute('src');
|
||||
if (url) fetch(url, { cache: 'force-cache' }).then(r => r.text()).then(svgText => {
|
||||
const realSvg = new DOMParser().parseFromString(svgText, "image/svg+xml").querySelector('svg');
|
||||
if (realSvg) {
|
||||
Array.from(imgNode.attributes).forEach(attr => realSvg.setAttribute(attr.name, attr.value));
|
||||
imgNode.replaceWith(realSvg);
|
||||
}
|
||||
});
|
||||
});
|
||||
}
|
||||
|
||||
if (node._thisObj !== undefined) scanObj.thisObj = node._thisObj || null;
|
||||
else {
|
||||
let curr = node;
|
||||
while (curr && curr._thisObj === undefined) curr = curr.parentNode;
|
||||
scanObj.thisObj = curr ? curr._thisObj : null;
|
||||
}
|
||||
if (node._ref === undefined) {
|
||||
let curr = node;
|
||||
while (curr && curr._ref === undefined) curr = curr.parentNode;
|
||||
node._ref = curr ? { ...curr._ref } : {};
|
||||
}
|
||||
if (scanObj.extendVars) Object.assign(node._ref, scanObj.extendVars);
|
||||
|
||||
_parseNode(node, scanObj);
|
||||
|
||||
const nodes = [...(node.childNodes || [])];
|
||||
const nextScanObj = { thisObj: scanObj.thisObj, extendVars: { ...node._ref } };
|
||||
nodes.forEach(child => {
|
||||
if (!child._stManaged) _scanTree(child, nextScanObj);
|
||||
});
|
||||
};
|
||||
|
||||
export const _unbindTree = (node) => {
|
||||
if (node.nodeType !== 1) return;
|
||||
if (node._hasOnUnload) node.dispatchEvent(new Event('unload', { bubbles: false }));
|
||||
if (node._states) node._states.forEach(mappings => {
|
||||
for (const [key, bindingSet] of mappings) {
|
||||
for (const binding of bindingSet) { if (binding.node === node) bindingSet.delete(binding); }
|
||||
}
|
||||
});
|
||||
node.childNodes && node.childNodes.forEach(child => _unbindTree(child));
|
||||
};
|
||||
|
||||
export const RefreshState = _scanTree;
|
||||
Loading…
x
Reference in New Issue
Block a user