Chrome Extension - Get entire text content of the current tab

Question

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.

Answer 1

Use executeScript: (requires permission activeTab)

chrome.tabs.executeScript(null, {     code: `document.all[0].innerText`,     allFrames: false, // this is the default     runAt: 'document_start', // default is document_idle. See https://stackoverflow.com/q/42509273 for more details. }, function(results) {     // results.length must be 1     var result = results[0];     process_result(result); }); 

In case the code is complex, it's possible to define a function in the content script and call that function in the code (or use file).

Answer 2

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.

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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 

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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.