113 lines
2.6 KiB
JavaScript
113 lines
2.6 KiB
JavaScript
/**
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* Ritz Runtime - DOM Bridge for WASM
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*
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* Provides DOM manipulation functions called by WASM code.
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*/
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class RitzRuntime {
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constructor(rootElement) {
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this.rootElement = rootElement || document.body;
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this.nodes = new Map(); // Map of node IDs to DOM nodes
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this.nextNodeId = 1;
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this.rootNodeId = null;
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}
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/**
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* Create a DOM element and return its ID
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*/
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createElement(tag) {
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const element = document.createElement(tag);
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const id = this.nextNodeId++;
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this.nodes.set(id, element);
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console.log(`[Ritz] Created element <${tag}> with ID ${id}`);
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return id;
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}
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/**
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* Create a text node and return its ID
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*/
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createTextNode(text) {
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const textNode = document.createTextNode(text);
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const id = this.nextNodeId++;
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this.nodes.set(id, textNode);
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console.log(`[Ritz] Created text node "${text}" with ID ${id}`);
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return id;
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}
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/**
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* Append child to parent
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*/
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appendChild(parentId, childId) {
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const parent = this.nodes.get(parentId);
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const child = this.nodes.get(childId);
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if (!parent || !child) {
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console.error(`[Ritz] appendChild failed: parent=${parentId}, child=${childId}`);
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return;
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}
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parent.appendChild(child);
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console.log(`[Ritz] Appended node ${childId} to node ${parentId}`);
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}
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/**
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* Set an attribute on an element
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*/
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setAttribute(elemId, name, value) {
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const element = this.nodes.get(elemId);
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if (!element) {
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console.error(`[Ritz] setAttribute failed: element=${elemId}`);
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return;
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}
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// Handle special cases
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if (name === 'class') {
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element.className = value;
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} else {
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element.setAttribute(name, value);
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}
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console.log(`[Ritz] Set attribute ${name}="${value}" on node ${elemId}`);
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}
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/**
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* Set the root element and mount it to DOM
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*/
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setRoot(elemId) {
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const element = this.nodes.get(elemId);
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if (!element) {
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console.error(`[Ritz] setRoot failed: element=${elemId}`);
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return;
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}
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this.rootNodeId = elemId;
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// Clear the root element
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this.rootElement.innerHTML = '';
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// Mount the component
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this.rootElement.appendChild(element);
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console.log(`[Ritz] Mounted component (node ${elemId}) to DOM`);
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}
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/**
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* Clear all nodes (for hot reload)
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*/
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clear() {
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this.nodes.clear();
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this.nextNodeId = 1;
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this.rootNodeId = null;
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this.rootElement.innerHTML = '';
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}
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}
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// Export for use in module or global scope
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if (typeof module !== 'undefined' && module.exports) {
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module.exports = RitzRuntime;
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} else {
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window.RitzRuntime = RitzRuntime;
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}
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