Google Chrome Extensions: Passing user highlighted webpage text to a browser_action
I'm working on a Chrome extension where I need to pass highlighted text into a browser_action. I found the following code in a Google Group, and at the time it was written it was still valid - but it doesn't work anymore..
Does anyone know an alternative solution?
background.html:
<html>
<head>
<script type="text/javascript">
var selection_callbacks = [];
function getSelection(callback) {
selection_callbacks.push(callback);
chrome.tabs.executeScript(null, { file: "contentscript.js" });
};
chrome.extension.onRequest.addListener(function (request) {
var callback = selection_callbacks.shift();
callback(request);
});
</script>
</head>
<body>
</body>
</html>
popup.html:
<html>
<head>
<script type="text/javascript">
function onSelection(text) {
document.getElementById("output").innerHTML = text;
}
chrome.extension.getBackgroundPage().getSelection(onSelection);
</script>
</head>
<body>
<div id="output">
This should be replaced with the selected text
</div>
</body>
</html>
contentscript.js:
chrome.extension.sendRequest(window.getSelection().toS开发者_StackOverflowtring());
You could use a real content script instead of injecting JavaScript into the page with chrome.extension.executeScript. You could then have background.html ask the content script for the selection using chrome.tabs.sendRequest.
加载中,请稍侯......
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