In the process of developing my Firefox extension, I am attempting to dynamically create a global function:
window.performAction= function() { ... };
After further investigation, I have discovered that the window is encapsulated by an XrayWrapper.
window -> [object XrayWrapper [object Window]]
As a result, it appears that assigning the function has no effect. Is there a secure way to modify the window object in this manner?
Snippet from your extension code:
gBrowser.contentWindow.addEventListener('customEventListenerMy',triggerMyFunction,false);
function triggerMyFunction(){
console.log('executing function');
}
gBrowser.contentWindow refers to the active tab's document. You might need to include
Services.wm.getMostRecentWindow('navigator:browser')Services.wm.getMostRecentWindow('navigator:browser').gBrowser.contentWindowDispatching events in your window:
var event = new Event('customEventListenerMy');
// Dispatch the event.
window.dispatchEvent(event);
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