google chrome extension update text after response callback
- by Jerome
I am writing a Google Chrome extension. I have reached the stage where I can pass messages back and forth readily but I am running into trouble with using the response callback. My background page opens a message page and then the message page requests more information from background. When the message page receives the response I want to replace some of the standard text on the message page with custom text based on the response. Here is the code:
chrome.extension.sendRequest({cmd: "sendKeyWords"}, function(response) {
keyWordList=response.keyWordsFound;
var keyWords="";
for (var i = 0; i
FIRST QUESTION: This all seems to work fine but the text on the page doesn't change. I am almost certainly because the callback completes after the page is finished loading and the rest of the code finishes before the callback completes, too. How do I update the page with the new text? Can I listen for the callback to complete or something like that?
SECOND QUESTION: The procedure I am pursuing first opens the message page and then the message page requests the keyword list from background. Since I always want the keyword list, it makes more sense to just send it when I create the tab. Can I do that? Here is the code from background that opens the message page:
//when request from detail page to open message page
chrome.extension.onRequest.addListener(function(request, sender, sendResponse) {
if(request.cmd == "openMessage") {
console.log("Received Request to Open Message, Profile Score: "+request.keyWordsFound.length);
keyWordList=request.keyWordsFound;
chrome.tabs.create({url: request.url}, function(tab){
msgTabId=tab.id; //needed to determine if message tab has later been closed
chrome.tabs.executeScript(tab.id, {file: "message.js"});
});
console.log("Opening Message");
}
});
