Function scheduleLazyCodeBlock

vditor/src/ts/codeBlock/codeMirrorManager.ts:494–510

(vditor: IVditor, blockElement: HTMLElement)

};

const scheduleLazyCodeBlock = (vditor: IVditor, blockElement: HTMLElement) => {
    if (isSpecialBlock(blockElement)) {
        scheduleSpecialBlock(vditor, blockElement);
        return;
    }
    if (isBlockNearViewport(blockElement)) {
        enforceMaxMounted(vditor, blockElement);
        mountCodeMirror(blockElement, vditor, true);
    } else {
        if (bindings.has(blockElement)) {
            cancelLazyTeardown(blockElement);
            destroyCodeMirror(blockElement);
        }
        showPlainCodeBlockPlaceholder(blockElement);
    }
    registerLazyCodeBlockVisibility(vditor, blockElement);
};

export const setupLazyCodeMirrorObserver = (_vditor: IVditor) => {
    if (lazyCodeMirrorObserver) {