Also, at this point, you no longer need the mousedown handler, because you have already clicked.

而且，在此时，不再需要mousedown处理程序，因为已经进行单击。

youdao

Then it's time to ask for listening for various mouse events (mousedown, mouseup, and click) on the shadow tree's rectangle — you'll see how to react to these later.

接下来要求对影像树的矩形监听各种不同的鼠标事件(mousedown、mouseup和click)，后面将看到如何响应这些事件。

youdao

So when the shadow tree's rectangle receives a mousedown event, I change the CSS fill property to something a little flashier -- say pink.

因此，当影像树的矩形接收到mousedown事件时，我把CSS 的fill属性改成稍微亮一点的颜色——比如粉红色。

youdao

The text element has two events that it reacts to — mouseover and mousedown.

文字元素可以对两种事件做出反应——mouseover和mousedown。

youdao

The initial mousedown handler is shown in Listing 11.

最初的mousedown处理程序如清单11所示。

youdao

However, at first, you only want to install the mousedown handler, because you're still waiting for the click that initiates the drag-and-drop sequence.

不过，开始时，只需安装mousedown处理程序，因为此时您尚在等待激发初始化拖放过程的单击。

youdao

However, at first, you only want to install the mousedown handler, because you're still waiting for the click that initiates the drag-and-drop sequence.

不过，开始时，只需安装mousedown处理程序，因为此时您尚在等待激发初始化拖放过程的单击。

youdao