javascript - 在 Tampermonkey 中模拟 mousedown、click、mouseup 序列？

Question

我想模拟整个点击，而不仅仅是

document.getElementsByClassName()[0].click();

我该怎么做？搜索结果似乎都是关于处理此类事件，而不是触发它们。

Answer 1

发送鼠标事件。像这样:

//--- Get the first link that has "stackoverflow" in its URL.
var targetNode = document.querySelector ("a[href*='stackoverflow']");
if (targetNode) {
    //--- Simulate a natural mouse-click sequence.
    triggerMouseEvent (targetNode, "mouseover");
    triggerMouseEvent (targetNode, "mousedown");
    triggerMouseEvent (targetNode, "mouseup");
    triggerMouseEvent (targetNode, "click");
}
else
    console.log ("*** Target node not found!");

function triggerMouseEvent (node, eventType) {
    var clickEvent = document.createEvent ('MouseEvents');
    clickEvent.initEvent (eventType, true, true);
    node.dispatchEvent (clickEvent);
}

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如果网页是静态加载的，这会起作用。如果网页是 AJAX 驱动的，请使用如下技术:

• "Normal" button-clicking approaches are not working in Greasemonkey script?
• Choosing and activating the right controls on an AJAX-driven site

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注意:
问题代码有错误。您需要将类名传递给该函数。像这样:

document.getElementsByClassName ("SomeClassName")[0].click();