This documentation relates to Opera's now deprecated .oex Extension API framework for Opera versions <= 12.15 and also provided by our OEX2NEX shim library.
For the latest Opera Extensions API documentation for Opera versions > 12.15 please consult the latest Opera Extensions API documentation online.
The width of the popup window; by default, the width is 300px. Note that this attribute is set in the background script as part of the ToolbarUIItemProperties object. See the Browser Toolbar guide.
Number width
//
// The background process (e.g. '/background.js').
//
// Set options for the button
var UIItemProperties = {
disabled: false,
title: 'Opera Extension',
icon: 'images/icon_18.png',
popup: {
href: 'popup.html'
}
};
// Set the popup's height to 480 pixels
UIItemProperties.popup.width = 200;
// Create the button and add it to the toolbar
var button = opera.contexts.toolbar.createItem(UIItemProperties);
opera.contexts.toolbar.addItem(button);