Chrome extension: passing variables to a popup

问题

I'm trying to create an etension for Google Chrome. I am monitoring page text selection and i want the popup page to recieve the selected text when i click on the popup button.

Is there a way to pass variables to a popup? I understand, that messging doen't work for closed popups, so what should i do?

回答1:

Once a text is selected send it to a background page where you would store it in lets say textSelection global variable. Once popup is opened you can access this variable with:

var selection = chrome.extension.getBackgroundPage().textSelection;

(you can access any variable and function from a background page directly, without requests)

回答2:

Your question can't be concisely answered, but I recommend you look here and read through some of the code samples:

http://code.google.com/chrome/extensions/messaging.html

来源：https://stackoverflow.com/questions/7217123/chrome-extension-passing-variables-to-a-popup