Fennec/Features/touch

Feature	Status	ETA	Owner
Touch Events	Implementation in progress	2011-07-01	Thomas Arend

Summary

Expose touch events to content for better interaction with web pages and services, and compatibility with WebKit/Opera and existing web content.

Team

• Wes Johnson - Mobile Front-end
• Olli Pettay (smaug) - Platform
• Matt Brubeck - W3C spec

Release Requirements

• No performance regressions on non-touch-event pages.
• Acceptable performance of touch events in content. (Need more precise criteria?)
• Sidebar (or some alternate form of navigation) is still accessible on pages that use touch events.

Next Steps

• Finish patches and get reviews.
• Write automated tests and do manual compatibility testing.
• Experiment with different ways of allowing sidebar panning.
• Performance testing and optimization.
• Send spec feedback to W3C Web Events working group.

Related Bugs & Dependencies

• bug 544614 - Tracking bug for touch events in Fennec

Designs

This is our new gesture set, as mapped to current browser features. We will also have on-screen touch buttons/targets, but we need to map all features to a gestures for accessibility reasons (more details on that soon)...

Browser Function / Feature	Gesture	Gesture Illustration
Back	Two-finger Swipe Left
Forward	Two-finger Swipe Right
Scroll	One-finger Drag
Kinetic Scroll	One-finger Swipe
Pan	One-finger Drag (when page is zoomed in)
Kenetic Pan	One-finger Swipe (when page is zoomed in)
Zoom In
Zoom Out
View All Tabs
Next Tab
Previous Tab
Close Tab
New Tab
Open in New Tab	Long Tap on Link, Tap on "Open in New Tab"
Bookmark Page
Open Bookmarks
Follow Link
Access to Awesomebar
Show All History
Site Info
Settings/Preferences/Add-ons
Share
Contextual Menu
Reload Page
Stop Loading Page
Access to Firefox Home
Full Screen
Save as PDF
Save Webpage

Goals/Use Cases

• Expose single-touch events to content in Fennec.
• Don't let pages completely block navigation or sidebar panning.
• Compatibility with existing pages like Google Maps.
• Conformance with a subset of W3C Touch Events editor's draft.
• Compatibility with a common subset of Safari/Android/WebKit functionality.

Non-Goals

• Expose multiple simultaneous touches to content (will be done in a future version).
• 100% conformance with W3C Touch Events spec (will be completed in future versions).
• 100% compatibility with Safari or other browsers.
• Enable W3C touch events in desktop Firefox (will be done in future versions).

Other Documentation

• W3C Touch Events editor's draft specification

Legend (remove if you like)

	Healthy: feature is progressing as expected.
	Blocked: feature is currently blocked.
	At Risk: feature is at risk of missing its targeted release.
ETA	Estimated date for completion of the current feature task. Overall ETA for the feature is the product release date.