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Chrome Extension Boilerplate – Toggle Using Browser Action
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| var toggle = false; | |
| var status = 'off'; | |
| var the_tab_id = ''; | |
| function set_status() { | |
| toggle = !toggle; | |
| status = 'off'; | |
| if(toggle) { status = 'on'; } | |
| } | |
| function toggle_extension(tab){ | |
| // Set icon | |
| chrome.browserAction.setIcon({ path: 'icons/icon-'+status+'.png', tabId:tab.id }); | |
| // Pass status variable & execute script | |
| chrome.tabs.executeScript({ code: 'var extension_status = "'+status+'"' }); | |
| chrome.tabs.executeScript({ file: 'inject.js' }); | |
| // Set the tab id | |
| the_tab_id = tab.id; | |
| } | |
| function my_listener(tabId, changeInfo, tab) { | |
| // If updated tab matches this one | |
| if (changeInfo.status == "complete" && tabId == the_tab_id && status == 'on') { | |
| toggle_extension(tab); | |
| } | |
| } | |
| chrome.browserAction.onClicked.addListener(function(tab) { | |
| set_status(); | |
| toggle_extension(tab); | |
| }); | |
| chrome.tabs.onUpdated.addListener(my_listener); |
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| if( extension_status == 'on' ) { | |
| // do something | |
| } |
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| { | |
| "name": "My Extension", | |
| "version": "0.0.1", | |
| "manifest_version": 2, | |
| "background": { | |
| "scripts": ["background.js"], | |
| "persistent": false | |
| }, | |
| "browser_action": { | |
| "default_icon": "icons/icon-off.png" | |
| }, | |
| "permissions": [ | |
| "activeTab", | |
| "<all_urls>" | |
| ] | |
| } |
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A very simple boilerplate for creating a chrome extension that toggles on/off when the browser action icon is clicked and injects some script into the current tab. Add
icon-on.pngandicon-off.pngto complete.