Principle #1: Make it Direct

In the earlier version of Gmail, the only way to label or organize messages was to select the row or rows, then navigate to the “Move To” combo box or “Label” combo box.

But last week (at least in my Gmail account) Google decided to Make It Direct. Why select a row and look for an action button somewhere- just grab that message and drag it!

The Drag and Drop Object Pattern, in Chapter 2 of our book explains the nuances involved in this pattern such as affordance- ie. letting the user know they can drag something to reorganize the relationship, and clearly indicating the available drop zone.

Affordance

Gmail introduces the feature with a well designed help tip:

And by visually indicating the messages can be moved by displaying a drag handle on each row:

We did something similar in the new design of Zenoss, an open source systems management application. On Step 3 of Set-Up, the systems administrator can efficiently organize their infrastructure by dragging devices (right) into the proper category (shown on left).

Since this is a set-up screen folks will only use once, we decided to embed the instructions in the screens instead of using a dialog with the tip.

Drop Zone

Although Gmail did a nice job introducing the feature, they didn’t implement the standard cursors for drop zones:

Typically, the cursor should provide feedback when hovering over different zones, showing the user where the object can or can’t be dropped:

The Ajax framework Ext JS handles this perfectly right out of the box- click to watch the screencast.

Expandable Drop Zone

So does this mean I have to go click to expand to see ‘12 More’ before I can drag any messages into those folders? Nope- Gmail borrowed an slick interaction from the Mac – the Expandable Drop Zone.

Now in Gmail, you can select one or more messages, drag them to an expandable drop zone, and a layer opens dispalying all of the other labels. Bill mentioned to me that a slightly longer delay ‘on drop’ would help provide feedback that the messages actually ended up in the right label.

By Theresa Neil

As Bill mentioned in an earlier post, we don’t want to limit this blog to just the principles and patterns found in the book. For that you can check out our Explore the Book section.

This is the second article in a three part series on patterns and principles for RIA design.

Standard Screen Patterns: 12 patterns w/100 examples
Essential Controls: 30 controls for RIA design and development
Components for Commonly Requested Features: 15 patterns and examples

Every designer has a set of controls they rely on to communicate an effective UI. This is my library of essential controls.

Unfortunately, no single RIA framework offers all 30 of these. So I included a checklist of which frameworks provide each control. If you have an addition or correction, please e-mail me, and I will post an updated framework/control matrix.

The frameworks reviewed include: Flex, Laszlo, Silverlight and 12 Ajax frameworks and toolkits: ExtJS, Dojo, YUI, Google Web Toolkit, Prototype/script.aculo.us, JQuery, MooTools, MochaUI, SproutCore, LivePipeUI,IT Mill, Backbase.

01. Auto Suggest

Google’s Auto-Complete

Supported by: Flex, Laszlo, ExtJs, Dojo, YUI, Google Web Toolkit, Prototype/script.aculo.us, JQuery, MooTools, MochaUI, IT Mill, Backbase, Silverlight.

02. Carousel (variation as Coverflow)

Carousel Prototype carousel widget

Supported by: YUI, Prototype/script.aculo.us, JQuery, ITMill, Backbase, iCarousel

Coverflow MediaEvent Service’s Slideflow

Supported by: Flex, Prototype/script.aculo.us, JQuery, MooTools, RadControls for Silverlight

03. Charts & Graphs

Charts Advanced charting features like hover details, drill down, rolling windows, toggle views…

Supported by: Flex, Laszlo, Dojo, YUI, Google Web Toolkit, Prototype/script.aculo.us, JQuery (SWF/Chart), MooTools, MochaUI, Backbase, SilverLight, AnyChart, Dundas, JPowered, JFreeChart, OpenFlashCharts, Flot, Plotr, PlotKit, WebFX, AjaxMcGraph, Measure Map.

04. Collapsible Panels (accordion, disclosure triangles, slide drawer)

Accordion Mutually exclusive collapsible panels showing status

Disclosure arrows Mint.com uses disclosure arrows for summarizing and displaying accounts

Sliding panel Fluxiom uses a sliding panel instead of a dialog to show the selected photo’s details

Supported by: Flex, Laszlo, ExtJs (called panels), Dojo, Google Web Toolkit (disclosure panel), Prototype/script.aculo.us (accordion), JQuery, MooTools (accordion), MochaUI (split pane), SproutCore (split pane), IT Mill, Backbase (accordion), RadControls for Silverlight (PanelBar and Sliding Panel).

05. Combobox (select multiple, alternate list box UI, editable)

Select multiple LivePipe UI’s control takes less space and is easier to scan than an ocean of checkboxes

Alternate listbox UI Best alternative for multi select in small spaces, clearly displays all selections, and provides an easy way to edit

Supported by: Alternate Listbox UI, LivePipeUI

Editable combobox Editable combobox allows for lookup and/or text entry

Supported by: Flex, Laszlo, ExtJs, Prototype/script.aculo.us, JQuery, MooTools (MUI.ComboBox), IT Mill, Backbase, RadControls for Silverlight.

06. Date Picker/Calendar (select range, date/time combination)

Advanced calendar Select a range, discontinuous dates, or exclude a certain day

Date/time picker Select a date and time in a single control

Supported by: Flex, Laszlo, ExtJS, Dojo, YUI, JQuery, Scal built on Prototype, MooTools, MochUI, IT Mill, Backbase, Silverlight, dhtmlxCalendar, keyboard accessible calendar, more examples on Woork

07. Dialogs (modal, light weight, lightbox)

Modal dialog Mint offers a modal for adding an account

Modeless dialog Google Maps provides a modeless dialog for getting directions

Lightbox JQuery provides a lightbox plugin, a modal dialog that blacks out the parent screen

Supported by: Flex(modal), Laszlo (modal and modeless), ExtJs (modal), Dojo (modal and lightbox), YUI( listed under Containers: Modal and Overlay), Prototype/script.aculo.us, JQuery (modal, modeless, lightbox) , SproutCore (has a really nice example of each under ‘panes’), MooTools, MochaUI, LivePipe UI, IT Mill, Backbase (modal and modeless window), Silverlight (modal and lightbox).

08. Docking

Dockable menu Campaign Manager by eyeblaster offers a pinned/unpinned menu for navigating between campaigns

Supported by: Flex, Laszlo, ExtJs, Dojo, YUI, Google Web Toolkit, Prototype/script.aculo.us, JQuery, MooTools, MochaUI, LivePipe UI, Backbase, Silverlight.

09. Drag & Drop Manager

Drag and drop ExtJS photo organizer demo

Supported by: Flex, Laszlo, ExtJs, Dojo, YUI, Google Web Toolkit, Prototype/script.aculo.us, JQuery, MooTools, MochaUI, LivePipe UI, Backbase, Silverlight.

10. Dynamic Filter

Dynamic table filtering Flex offers a filter feature that dynamically filters the results while the user types, demo

Dynamic column filtering Dynamic filtering can be implemented at the column level providing advanced filtering capabilities Supported by: Flex, Laszlo, ExtJs, Dojo, YUI, JQuery, IT Mill, Backbase, Silverlight, Open Rico

11. Feedback/ Status

Feedback Gmail status message

Supported by: Flex, Laszlo, ExtJs, Dojo, YUI, Google Web Toolkit, Prototype/script.aculo.us, JQuery, MooTools, MochaUI, LivePipe UI, IT Mill, Backbase, Silverlight

12. Fisheye/ Spotlight

Fisheye Apslab Fish-eye Lense

Apply this concept to a dense chart or map for a truly useful feature.

Supported by: Flex, ExtJs (spotlight), Dojo , Prototype/script.aculo.us, JQuery, MooTools, MochaUI, Silverlight

13. Gauges (and other visual progress or status indicators)

Gauge Thermometer gauge in RadControls for Silverlight

Gauges provide a concise visual summary in heads-up-display or other goal directed designs

Supported by: Flex (various plug-ins and Flex Charting), ExtJs (combined with GWT), Dojo, Google Web Toolkit, Prototype/script.aculo.us, JQuery (SWF/Gauge), MooTools, MochaUI, Silverlight, AnyChart, Dundas

14. Help Tip/ Quick Tip

Quick Tip Picnik engages new users with some helpful advice

More than just a tooltip, these are fully formatted messages typically presented in a modeless dialog.

Supported by: Flex, Laszlo, ExtJs, Dojo, YUI (use overlay container), Google Web Toolkit (use popup panel), Prototype/script.aculo.us, JQuery, MooTools, MochaUI, LivePipe UI (use window control), IT Mill, Backbase, Silverlight

15. Hot Keys

Hot keys Balsamiq Mockups has hot keys for frequent actions

Supported by: Flex, Laszlo, Mochui, LivePipe UI, IT Mill, Backbase, Silverlight

16. Hover Action

Hover action Instead of cluttering the screen with redundant actions, Basecamp reveals the edit and delete actions onHover

Supported by: Flex, Laszlo, ExtJs, YUI, JQuery, MooTools, MochaUI, Backbase, Silverlight, good post by Bill on hover actions and missed moments

17. Hover Detail

Hover detail Netflix hover details

Supported by: Flex, Laszlo, ExtJs, Dojo, YUI (overlay), Prototype/script.aculo.us, JQuery, MooTools (smart hover box), IT Mill, Silverlight

18. Inline Edit

Inline edit Instead of showing form fields in pages that are usually read (not edited), Flickr provides inline editing

Supported by: Flex (only in the grid), Laszlo (only in the grid), ExtJs, Dojo, YUI, Prototype/script.aculo.us, JQuery, MooTools, MochaUI, IT Mill, Backbase (only in the grid), Silverlight (only in the grid)

19. Progress Indicator/ Loading

Progress indicator Picnik loading indicator

Supported by: Flex, Laszlo, ExtJs, Dojo, YUI, Google Web Toolkit, Prototype/script.aculo.us, JQuery, MooTools, MochaUI, LivePipe UI, IT Mill, Backbase, Silverlight

20. Rating

Star rating Graffletopia offers one-click star ratings for shared stencils

Supported by: ExtJs extension, Dojo widget, Starbox for Prototype/script.aculo.us, JQuery, MooTools , MochaUI

21. Record Locator/ Paginator

Record locator Like the control in PDF Viewer, the record locator lets you navigate through records in a dataset or skip to a specific record by name

Paginator Typically used for paging through tables, screens, or other result sets

Supported by: Flex, Laszlo, ExtJs, Dojo, YUI, Google Web Toolkit, Prototype/script.aculo.us, JQuery, MooTools, MochaUI, LivePipe UI, Backbase, Silverlight

22. Slider

Slider Innography provides sliders in their quick filter for refining results displayed on a chart

Supported by: Flex, Laszlo, ExtJs, Dojo, Prototype/script.aculo.us, JQuery, MooTools, MochaUI, IT Mill, Backbase, RadControls for Silverlight

23. Scoped Search

Scoped search Like iTunes, allows for the optional selection of a category before entering free form search text, example from Vimeo’s help page

Supported by: custom css and js code, example at Janko at warp speed, RadControls for Silverlight

24. Sparklines

Sparklines Great way to show the “shape” or trend of data is a small space, examples from RetailMeNot.com and Google Analytics. Created by Edward Tufte.

Supported by: Nuby on Rails, Any Chart, JQuery plugin, Flex , and two more ones for Flex at Microcharts and Birdeye, Google API, Visifire for Silverlight

25. Table/ Data Grid ( scrolling, editable, grouped)

Scrolling table Endless scrolling, no paging, just like a desktop app, example from ExtJS

Editable table Blist offers inline cell editing in their products. Best practice, highlight the selected row, and only display an editor in the selected cell. Don’t forget to accomodate keyboard navigation.

Tree table Grouping by row, displays as a tree table, example from ExtJS

Supported by: Flex, Laszlo, ExtJs, Dojo, YUI, Backbase, Silverlight

26. Toolbar

Toolbar Provide actions in proximity to the object, examples from SugarSync and Flickr

Supported by: Flex, Laszlo, ExtJs, Dojo, YUI, Google Web Toolkit, Prototype/script.aculo.us, JQuery, MooTools, MochaUI, Backbase, RadControls for Silverlight

27. Vertical Browser

Vertical browser Apple’s vertical browser for exploring Dashboard widgets

Supported by: custom code of multiple list boxes

28. View Toggle (buttons, button bar)

Toggle buttons Separate buttons for switching between graph and grid views Campaign Manager by eyeblaster

Toggle button bar Single button bar for capturing binary choices

Supported by: Flex, Laszlo, Dojo, YUI, JQuery, MooTools, MochaUI, Backbase, Silverlight

29. WYSIWYG Editor/ Rich Text Editor

Rich text editor WordPress offers a a WYSIWYG editor for blogging

Supported by: Flex, Laszlo, Dojo, YUI, Google Web Toolkit, JQuery, MooTools, MochaUI, IT Mill, Backbase, Silverlight

30. Zoom

Zoom Zoom in on a certain spot, example from jQZoom

Supported by: Flex, Laszlo, ExtJs (spotlight), Prototype/script.aculo.us (zOOm), JQuery, MooTools (Joomla), MochaUI, Silverlight (silverZoom)

Bonus- Desktop Style Container

Desktop style app OtherInbox built with SproutCore

A desktop style container isn’t actually a control, but frequently required when developing enterprise software and productivity web applications. Many of the frameworks that offer this feature include built in windows management, split panels, and fluid layout.

Supported by: Flex, Laszlo, ExtJs, YUI, JQuery, MochaUI, Backbase, SproutCore, Silverlight

Send me any corrections and/or additions, and I will upload an updated control/framework matrix.

Thanks to Joonas Lehtinen of IT Mill, Ryan Johnson of LivePipe, and Peter Svensson who is a Dojo expert, and Darren James, co-author of Ajax in Action.

Update* Cody Lindley at jQuery provided a comprehensive list with links to code for jQuery support for all 30 controls.