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Bare minimum Chrome extension to inject a JS file into the given page when you click on the browser action icon. The script then inserts a new div into the DOM.
// this is the background code...
// listen for our browerAction to be clicked
chrome.browserAction.onClicked.addListener(function (tab) {
// for the current tab, inject the "inject.js" file & execute it
chrome.tabs.executeScript(tab.ib, {
file: 'inject.js'
});
});
// this is the code which will be injected into a given page...
(function() {
// just place a div at top right
var div = document.createElement('div');
div.style.position = 'fixed';
div.style.top = 0;
div.style.right = 0;
div.textContent = 'Injected!';
document.body.appendChild(div);
alert('inserted self... giggity');
})();
{
"name": "Injecta",
"version": "0.0.1",
"manifest_version": 2,
"description": "Injecting stuff",
"homepage_url": "http://danharper.me",
"background": {
"scripts": [
"background.js"
],
"persistent": true
},
"browser_action": {
"default_title": "Inject!"
},
"permissions": [
"https://*/*",
"http://*/*",
"tabs"
]
}
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