焦点变化时截图

发布于 2024-11-24 02:27:11 字数 421 浏览 1 评论 0原文

我正在开发一个 chrome 扩展，我遇到的情况是有两个输入字段（文本框）。一旦焦点从第一个文本框更改为第二个文本框，我想在发生鼠标单击事件时开始截屏。

我的第一个问题是，每当焦点发生变化时，如何收到警报？

这是我用于截取屏幕截图的内容脚本，我将把它注入到网站中。不幸的是，它目前不起作用。

内容脚本.js

document.onclick=function() {
  {
    chrome.windows.getCurrent(function(win){

  chrome.tabs.captureVisibleTab(win.id, function(imgUrl) {
     var screenshotUrl = imgUrl;
console.log(screenshotUrl);
});
});
};

原文

I am developing a chrome extension and I have a situation where I have two input fields(textbox). Once the focus changes from the first textbox to the second textbox, I want to start taking screenshots whenever a mouse-click event occurs.

My first question is how do I get alerted whenever focus change takes place ?

This is my content script for taking screenshots which I am going to inject into a website. Unfortunately it's not working at the moment.

content_script.js

document.onclick=function() {
  {
    chrome.windows.getCurrent(function(win){

  chrome.tabs.captureVisibleTab(win.id, function(imgUrl) {
     var screenshotUrl = imgUrl;
console.log(screenshotUrl);
});
});
};

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长不大的小祸害 2024-12-01 02:27:12

http://www.devguru.com/technologies/ecmascript/quickref/evhan_onblur.html

Code:
Enter email address <INPUT TYPE="text" VALUE="" NAME="userEmail" onBlur=addCheck()>

<script type="text/javascript" language="JavaScript">

function addCheck() {
 alert("Please check your email details are correct before submitting")
}

</script>

http://www.devguru.com/technologies/ecmascript/quickref/evhan_onblur.html

Code:
Enter email address <INPUT TYPE="text" VALUE="" NAME="userEmail" onBlur=addCheck()>

<script type="text/javascript" language="JavaScript">

function addCheck() {
 alert("Please check your email details are correct before submitting")
}

</script>

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