extension appearing in the context menu of the browsers - kango-framework

Question

I am developing a cross browser extension using kango framework. I want to add my extension to the context menu of the browser. I already have set "context_menu": true in the permissions array in extension_info.json file, but still my extension does not appear in the context menu ( when there is a right click in the browser window). How can I do this?

Answer 1

You need to add an event listener to main.js like this:
kango.ui.contextMenuItem.addEventListener(kango.ui.contextMenuItem.event.CLICK, function() {
kango.browser.tabs.getCurrent(function(tab) {
tab.dispatchMessage('ContextMenuItemClick');
});
});
And in the content.js you need to consume the event like this:
function handleContextMenuClick() {
var clickedElement = null;
if ('addEventListener' in document) {
document.addEventListener('mousedown', function(event) {
if (event.button == 2 && IsSupported()) {
clickedElement = event.target;
kango.console.log('StopIt menu item click 1');
}
}, true);
} else {
document.attachEvent('onmousedown', function(event) {
event = event || window.event;
if (event.button == 2&& IsSupported()) {
clickedElement = event.srcElement;
kango.console.log('StopIt menu item click 2');
}
});
}
kango.addMessageListener('ContextMenuItemClick', function(event) {
kango.console.log("addMessageListener: ContextMenuItemClick added");
});
}
handleContextMenuClick();
// Only activate the menu when the user is on facebook or twitter.
// This should be loaded from a service and updated one each new domain visited.
function IsSupported()
{
if(document.domain.indexOf("facebook.") > -1) return true;
if(document.domain.indexOf("twitter.") > -1) return true;
return false;
}