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React ahooks 快捷键

 可以调用ahoks 里面的 useKeyPress

例子:

useKeyPress(["backspace", "delete"], () => {
myFunc()
});


// delete
useKeyPress(["backspace", "delete"], () => {
if (!isActiveElementValid()) {
return;
}
dispatch(deleteComponent());
});

// copy
useKeyPress(["ctrl.c", "meta.c"], () => { // meta is for Mac users
if (!isActiveElementValid()) {
return;
}
dispatch(copyComponent());
});

// paste
useKeyPress(["ctrl.v", "meta.v"], () => { // meta is for Mac users
if (!isActiveElementValid()) {
return;
}
dispatch(pasteComponent());
});


但是如果页面里面有输入框，这个时候点击这些删除键，也会导致选中的组件被删除，怎么办呢？


可以根据 document.activeElement来判断当前选中的是什么类型的组件

比如:

在我的项目中，定义了 isActiveElementValid()函数

function isActiveElementValid() {
const activeElement = document.activeElement;

if (activeElement === document.body) {
return true;
}
return false;
}

便可以来判断是否选中的为body

在input组件中删除内容的时候便不会把组件给删除了。


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