Scrollbar.updateDisplay_() 方法
根据滚动条是否应该可见以及其所在的工作区是否可见，更新滚动条的可见性。我们不能依赖于包含的工作区被隐藏来隐藏我们，因为它不一定是 DOM 中的父元素。
Signature:
updateDisplay_(): void;
返回：
void
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最后更新时间 (UTC)：2024-09-12。
[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC)：2024-09-12。"],[[["The `updateDisplay_` method controls the scrollbar's visibility based on its own state and the visibility of its workspace."],["It is necessary because the workspace's visibility alone may not hide the scrollbar due to potential DOM structure variations."],["This method ensures the scrollbar remains appropriately visible or hidden, independent of workspace DOM relationships."]]],["The `updateDisplay_` method in the Scrollbar class controls the scrollbar's visibility. It determines if the scrollbar should be shown by assessing its own state and the visibility of the containing workspace. The method's logic doesn't rely solely on the workspace's parent-child DOM relationship for visibility decisions. It takes no arguments and returns nothing (void). The method's core function is to synchronize the scrollbar's display state with the workspace's current state.\n"]]