Chapter Thirteen. Dialogs and Overlays
Dialogs and overlays present content that appears to float over the page. Dialogs usually offer richer interactive content like embedded form elements, buttons, and links, and require a decision or input from the user; overlays typically present read-only content. The wide range of uses for dialogs and overlays include:
• Presenting system error messages and confirmations that require user interaction to dismiss
• Collecting user input in a form or multi-step wizard
• Displaying large version of a photo in a “lightbox” when a thumbnail image is clicked on the page
• Creating floating palettes and UI inspector windows in a web application, like a document editor
• Opening a “sticky” tooltip or mini-overlay ...
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