Function removeCmCodeBlock

vditor/src/ts/codeBlock/codeMirrorManager.ts:1258–1334

(vditor: IVditor, blockElement: HTMLElement)

        },
    ]));

export const removeCmCodeBlock = (vditor: IVditor, blockElement: HTMLElement) => {
    if (!isCmCodeBlock(blockElement)) {
        return;
    }

    const editor = getModeEditor(vditor);
    if (!editor) {
        blockElement.remove();
        return;
    }

    const previousElement = blockElement.previousElementSibling as HTMLElement | null;
    const nextElement = blockElement.nextElementSibling as HTMLElement | null;

    const binding = bindings.get(blockElement);
    if (binding) {
        window.clearTimeout(binding.syncTimer);
        window.clearTimeout(binding.previewTimer);
        binding.syncCode.textContent = binding.view.state.doc.toString();
        binding.view.destroy();
        bindings.delete(blockElement);
        binding.editPre.querySelector(".cm-editor")?.remove();
    }
    removeCodeBlockChrome(blockElement);
    blockElement.remove();

    focusEditorWithoutScroll(editor);
    const range = getEditorRange(vditor);

    if (previousElement) {
        if (isCmCodeBlock(previousElement)) {
            focusCodeMirror(previousElement, false, vditor);
        } else {
            range.selectNodeContents(previousElement);
            range.collapse(false);
            setSelectionFocus(range);
            if (vditor.currentMode === "ir") {
                expandMarker(range, vditor.ir.element);
                syncIrMathBlockAfterExpand(vditor, range);
            }
        }
    } else if (nextElement) {
        if (isCmCodeBlock(nextElement)) {
            focusCodeMirror(nextElement, true, vditor);
        } else {
            range.selectNodeContents(nextElement);
            range.collapse(true);
            setSelectionFocus(range);
            if (vditor.currentMode === "ir") {
                expandMarker(range, vditor.ir.element);
                syncIrMathBlockAfterExpand(vditor, range);
            }
        }
    } else {
        editor.insertAdjacentHTML("beforeend", `<p data-block="0">${Constants.ZWSP}<wbr></p>`);
        setRangeByWbr(editor, range);
        setSelectionFocus(range);