The tree toolbar enables the user to trigger an action, such as adding nodes or change the view settings (e.g., filter). The toolbar appears above the tree and has a transparent background.

Do

• Use the toolbar to provide the user with key actions that impact the whole tree.
• Provide a title for the tree on the tree toolbar.
• Provide action buttons with icons or text.
• Provide filters to enable user to switching content using a select control or a segmented button.
• When using text in button, use as short a text as possible, preferably a single-word. Use self-explanatory text that clearly describes the action that the button performs, preferably a verb, and explain it in more detail in a tooltip with a hot key.
• When using icons in a button, provide the button name in a tooltip with some explanation and/or a hot key.
• Order buttons according to usage: most frequently-used action on the left and the most seldom-used action on the right. This ensures that the most important buttons are the last to be moved into the overflow menu.
• Use Web IDE icons for the following generic actions: add, remove, reorder (up, down), sort, filter, and search.
• Align buttons to the right edge of the toolbar.

Don’t

• Don’t combine icons and text in a button.
• Don’t only show the button name in the button tooltip.
• If the tree is the only control inside a panel with title, don’t add a title in the tree toolbar to avoid repetition.