如果从上下文菜单中调用，Chrome getSelection不起作用 [英] Chrome getSelection not working if called from context menu

问题描述

我正在开发Chrome扩展程序，但似乎无法通过前几行。
问题是，当我单击上下文菜单时，它无法从文档中获取选择内容。当我将它用作包含在HTML页面中的简单脚本时，它显然运行良好。

以下是代码：

< pre $ var id = chrome.contextMenus.create（{
title：Search，
contexts：[selection]，
onclick：openUrl
}）;

函数openUrl（）{
var sel = window.getSelection（）。toString（）。trim（）
alert（sel）
}


此代码返回一个空的提示框。

在mouseup上抓取用户选择的单词并在字典中搜索该单词的脚本。这个脚本工作正常，我只需要在用户点击上下文菜单中的搜索时执行它。
所以我要找的是：
1）用户从文档
中选择一个单词2）右键单击它并单击上下文菜单
3）脚本包含所有要执行的指令。

在问这个问题之前，我环顾四周，但我找不到任何东西，可能是因为我对这个真棒站点很新颖。如果我错过了任何问题，请随时将我重定向到其他类似的问题。

解决方案

  function openUrl（info，tab）{
 alert（ info.selectionText）; 
} 
  

I'm working on a Chrome extension but I don't seem to be able to go past the first few lines. The problem is that when I click on the context menu it fails to grab the selection from the document. It works fine obviously when I use it as a simple script included in an HTML page.

Here's the code:

var id = chrome.contextMenus.create({
    "title" : "Search",
    "contexts" : ["selection"],
    "onclick" : openUrl
});

function openUrl() {
    var sel = window.getSelection().toString().trim()
    alert(sel)
}

This code returns an empty alert box.

I have a script that on mouseup grabs the word that the user has selected and searches for this word on a dictionary. This script works fine I just need to execute it when the user clicks "Search" in the context menu. So what I'm looking for is: 1) User selects a word from the document 2) Right clicks on it and clicks on the context menu 3) The script containing all instruction to be executed on that click.

I looked around before asking this question but I couldn't find anything probably because I'm pretty new to this awesome site. Please feel free to redirect me to other similiar question if I missed any. Thanks!

解决方案

function openUrl(info, tab) {
     alert(info.selectionText);
}

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