eventTarget.addEventListener("cut", event) {{
//Save button should be disable
});
//Above is the code for cut event
//Similarly, I tried for undo event but it's not working
eventTarget.addEventListener("undo", event) {{
//Save button should be enable
});基本上我想检查一下,如果我从文本区剪切整个文本,那么保存按钮应该是禁用的。如果我从鼠标右键单击选择了粘贴或撤消选项,则应启用保存按钮。
如果有人知道如何处理鼠标撤消事件,请帮助我(粘贴事件以上述方式工作,但撤消事件不以类似方式工作)
等待你的回复。提前谢谢。
发布于 2021-01-16 18:48:10
您可以使用input事件来检测这些操作(没有用于复制的输入事件,因为它不会更改内容):
const textInput = document.getElementById("text-input");
textInput.addEventListener("input", (ev) => {
switch (ev.inputType) {
case "historyUndo":
console.log("The user undid an action.");
break;
case "insertFromPaste":
console.log("The user pasted something.");
break;
case "deleteByCut":
console.log("The user cut something.");
break;
}
});<input type="text" id="text-input" placeholder="Type here">
https://stackoverflow.com/questions/65748491
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