您可以使用 document.body.innerText 或 document.all [0] .innerText 在 内容脚本 。

它将获得所有 / em> 在页面中，没有任何HTML代码。

或者您可以使用 document.all [0] .outerHTML 来获取整个页面的HTML。

---

示例

在内容脚本中

 函数getText（）{
返回document.body.innerText 
} 
函数getHTML（）{
 return document.body.outerHTML 
} 
 console.log（getText（））; //给你所有页面上的文字
 console.log（getHTML（））; //给出页面的整个HTML 
 

---

已添加

所以您希望内容脚本将 文本 返回到弹出窗口。您可以使用：

• chrome.tabs.getSelected 来获取选中的选项卡，


• chrome.tabs.sendRequest 向内容脚本发送请求，


• 和 chrome.extension.onRequest.addListener 来侦听请求。

弹出页面

  chrome.tabs.getSelected（null，function（tab）{
 chrome.tabs .sendRequest（tab.id，{method：getText}，function（response）{
 if（response.method ==getText）{
 alltext = response.data; 
 } 
}）; 
}）; 
 

内容脚本

  chrome.extension.onRequest.addListener（
函数（request，sender，sendResponse）{
 if（request.method ==getText）{
 sendResponse（{data：document.all [0] .innerText，method：getText}）; //与innerText相同
} 
} 
）; 
 

这应该有效。

I'm developing an extension where i need to get the entire text content on the current tab. Now i've a plugin which retrieves selected text from the current tab. So, in essence i'm looking for the ctrl-A version of it :). This is what i've done so far taking the hint from @Derek.

This is in my event handler(this is just one, there are other listeners too for onUpdated etc):

chrome.tabs.onSelectionChanged.addListener(function(tabId,changeInfo,tab){  
chrome.tabs.getSelected(null,function(tab){
chrome.tabs.sendRequest(tab.id, {method: "getSelection"}, function (response) {
  selectedtext = response.data;
});
chrome.tabs.sendRequest(tab.id, {method: "getText"}, function (response) {
  alltext = response.data;
});
});
});

This is what i've written in the content script:

chrome.extension.onRequest.addListener(function(request, sender, sendResponse) {
if (request.method == "getSelection")
  sendResponse({data: window.getSelection().toString()});
else if (request.method == "getText")
  sendResponse({data: document.body.innerText});
else 
  sendResponse({});
});

However the document.body.innerText is returning undefined. I need the entire text of the current tab in alltext. Can someone help me out on this? Thanks.

You can use document.body.innerText or document.all[0].innerText to do it in the content script.
It will get all the text content in the page, without any HTML code.

Or you can use document.all[0].outerHTML to get the HTML of the whole page.

---

Example

In the Content Script

function getText(){
    return document.body.innerText
}
function getHTML(){
    return document.body.outerHTML
}
console.log(getText());             //Gives you all the text on the page
console.log(getHTML());             //Gives you the whole HTML of the page

---

Added

So you want the content script to return the text to the popup. You can use:

• chrome.tabs.getSelected to get the tab selected,
• chrome.tabs.sendRequest to send request to the content script,
• and chrome.extension.onRequest.addListener to listen to requests.

Popup page

chrome.tabs.getSelected(null, function(tab) {
    chrome.tabs.sendRequest(tab.id, {method: "getText"}, function(response) {
        if(response.method=="getText"){
            alltext = response.data;
        }
    });
});

Content Script

chrome.extension.onRequest.addListener(
    function(request, sender, sendResponse) {
        if(request.method == "getText"){
            sendResponse({data: document.all[0].innerText, method: "getText"}); //same as innerText
        }
    }
);

This should work.