Function createElement

app/services/tdc_vm_runner.cjs:98–156

(tag)

    documentElement: createElementStub({ clientWidth: 1920, clientHeight: 1080 }),
    body: createElementStub({ clientWidth: 1920, clientHeight: 1080 }),
    createElement(tag) {
      const normalized = String(tag).toLowerCase();
      if (normalized === 'canvas') {
        return createElementStub({
          getContext() {
            return makeNoopProxy({
              fillRect() {},
              clearRect() {},
              getImageData() {
                return { data: new Uint8ClampedArray(4) };
              },
              putImageData() {},
              createImageData() {
                return [];
              },
              setTransform() {},
              drawImage() {},
              save() {},
              fillText() {},
              restore() {},
              beginPath() {},
              moveTo() {},
              lineTo() {},
              closePath() {},
              stroke() {},
              translate() {},
              scale() {},
              rotate() {},
              arc() {},
              fill() {},
              measureText(text) {
                return { width: String(text).length * 8 };
              },
              transform() {},
              rect() {},
              clip() {},
            });
          },
          toDataURL() {
            return 'data:image/png;base64,AAAA';
          },
          width: 300,
          height: 150,
        });
      }
      if (normalized === 'audio' || normalized === 'video') {
        return createElementStub({
          canPlayType() {
            return 'probably';
          },
        });
      }
      return createElementStub({
        tagName: normalized.toUpperCase(),
        getContext() {
          return makeNoopProxy({});
        },
      });