BrowserTabGroup.position
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Description:
The readonly position
attribute gets the tab position of this browser tab group, if the tab group is open. Otherwise, it returns NaN.
Syntax:
readonly unsigned long position
Example:
The following example creates a button on the browser toolbar. When the button is clicked, the position of the first tab group is displayed in the button's badge.
//
// The background process (e.g. index.html)
//
// Specify the properties of the button before creating it.
var UIItemProperties = {
disabled: false,
title: "Example extension",
icon: "images/icon_18.png",
badge: {
backgroundColor: '#cc0000',
color: '#ffffff'
}
};
// Create the button and add it to the toolbar.
var button = opera.contexts.toolbar.createItem( UIItemProperties );
opera.contexts.toolbar.addItem(button);
button.addEventListener('click', handleClick, false);
function handleClick() {
// Get all tab groups in the current window
var groups = opera.extension.tabGroups.getAll();
// Display the first group's position in the button's badge
button.badge.textContent = groups[0].position;
}
This article is licensed under a Creative Commons Attribution 3.0 Unported license.
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