|
| 1 | +import { pyodideLoaded, loadedEnvironments, componentDetailsNavOpen, mode } from '../stores'; |
| 2 | + |
| 3 | +// Premise used to connect to the first available pyodide interpreter |
| 4 | +let pyodideReadyPromise; |
| 5 | +let environments; |
| 6 | +let currentMode; |
| 7 | +let Element; |
| 8 | + |
| 9 | +pyodideLoaded.subscribe(value => { |
| 10 | + pyodideReadyPromise = value; |
| 11 | +}); |
| 12 | +loadedEnvironments.subscribe(value => { |
| 13 | + environments = value; |
| 14 | +}); |
| 15 | + |
| 16 | +let propertiesNavOpen; |
| 17 | +componentDetailsNavOpen.subscribe(value => { |
| 18 | + propertiesNavOpen = value; |
| 19 | +}); |
| 20 | + |
| 21 | +mode.subscribe(value => { |
| 22 | + currentMode = value; |
| 23 | +}); |
| 24 | + |
| 25 | +// TODO: use type declaractions |
| 26 | +type PyodideInterface = { |
| 27 | + registerJsModule(name: string, module: object): void |
| 28 | +} |
| 29 | + |
| 30 | + |
| 31 | +export class BaseEvalElement extends HTMLElement { |
| 32 | + shadow: ShadowRoot; |
| 33 | + wrapper: HTMLElement; |
| 34 | + code: string; |
| 35 | + source: string; |
| 36 | + btnConfig: HTMLElement; |
| 37 | + btnRun: HTMLElement; |
| 38 | + outputElement: HTMLElement; |
| 39 | + errorElement: HTMLElement; |
| 40 | + theme: string; |
| 41 | + |
| 42 | + constructor() { |
| 43 | + super(); |
| 44 | + |
| 45 | + // attach shadow so we can preserve the element original innerHtml content |
| 46 | + this.shadow = this.attachShadow({ mode: 'open'}); |
| 47 | + this.wrapper = document.createElement('slot'); |
| 48 | + this.shadow.appendChild(this.wrapper); |
| 49 | + } |
| 50 | + |
| 51 | + addToOutput(s: string) { |
| 52 | + this.outputElement.innerHTML += "<div>"+s+"</div>"; |
| 53 | + this.outputElement.hidden = false; |
| 54 | + } |
| 55 | + |
| 56 | + postEvaluate(){ |
| 57 | + |
| 58 | + } |
| 59 | + |
| 60 | + getSourceFromElement(): string{ |
| 61 | + return ""; |
| 62 | + } |
| 63 | + |
| 64 | + async getSourceFromFile(s: string): Promise<string>{ |
| 65 | + let pyodide = await pyodideReadyPromise; |
| 66 | + let response = await fetch(s); |
| 67 | + this.code = await response.text(); |
| 68 | + return this.code; |
| 69 | + } |
| 70 | + |
| 71 | + protected async _register_esm(pyodide: PyodideInterface): Promise<void> { |
| 72 | + const imports: {[key: string]: unknown} = {} |
| 73 | + |
| 74 | + for (const node of document.querySelectorAll("script[type='importmap']")) { |
| 75 | + const importmap = (() => { |
| 76 | + try { |
| 77 | + return JSON.parse(node.textContent) |
| 78 | + } catch { |
| 79 | + return null |
| 80 | + } |
| 81 | + })() |
| 82 | + |
| 83 | + if (importmap?.imports == null) |
| 84 | + continue |
| 85 | + |
| 86 | + for (const [name, url] of Object.entries(importmap.imports)) { |
| 87 | + if (typeof name != "string" || typeof url != "string") |
| 88 | + continue |
| 89 | + |
| 90 | + try { |
| 91 | + // XXX: pyodide doesn't like Module(), failing with |
| 92 | + // "can't read 'name' of undefined" at import time |
| 93 | + imports[name] = {...await import(url)} |
| 94 | + } catch { |
| 95 | + console.error(`failed to fetch '${url}' for '${name}'`) |
| 96 | + } |
| 97 | + } |
| 98 | + } |
| 99 | + |
| 100 | + pyodide.registerJsModule("esm", imports) |
| 101 | + } |
| 102 | + |
| 103 | + async evaluate(): Promise<void> { |
| 104 | + console.log('evaluate'); |
| 105 | + let pyodide = await pyodideReadyPromise; |
| 106 | + let source: string; |
| 107 | + let output; |
| 108 | + try { |
| 109 | + // @ts-ignore |
| 110 | + if (this.source){ |
| 111 | + source = await this.getSourceFromFile(this.source); |
| 112 | + }else{ |
| 113 | + source = this.getSourceFromElement(); |
| 114 | + } |
| 115 | + |
| 116 | + await this._register_esm(pyodide); |
| 117 | + |
| 118 | + if (source.includes("asyncio")){ |
| 119 | + await pyodide.runPythonAsync(`output_manager.change("`+this.outputElement.id+`", "`+this.errorElement.id+`")`); |
| 120 | + output = await pyodide.runPythonAsync(source); |
| 121 | + await pyodide.runPythonAsync(`output_manager.revert()`) |
| 122 | + }else{ |
| 123 | + output = pyodide.runPython(`output_manager.change("`+this.outputElement.id+`", "`+this.errorElement.id+`")`); |
| 124 | + output = pyodide.runPython(source); |
| 125 | + pyodide.runPython(`output_manager.revert()`) |
| 126 | + } |
| 127 | + |
| 128 | + if (output !== undefined){ |
| 129 | + if (Element === undefined){ |
| 130 | + Element = pyodide.globals.get('Element'); |
| 131 | + } |
| 132 | + const out = Element(this.outputElement.id); |
| 133 | + // @ts-ignore |
| 134 | + out.write.callKwargs(output, { append : true}); |
| 135 | + |
| 136 | + this.outputElement.hidden = false; |
| 137 | + this.outputElement.style.display = 'block'; |
| 138 | + } |
| 139 | + |
| 140 | + this.postEvaluate() |
| 141 | + |
| 142 | + } catch (err) { |
| 143 | + if (Element === undefined){ |
| 144 | + Element = pyodide.globals.get('Element'); |
| 145 | + } |
| 146 | + const out = Element(this.errorElement.id); |
| 147 | + // @ts-ignore |
| 148 | + out.write.callKwargs(err, { append : true}); |
| 149 | + this.errorElement.hidden = false; |
| 150 | + this.errorElement.style.display = 'block'; |
| 151 | + } |
| 152 | + } |
| 153 | + } |
0 commit comments