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	Double Tap or Spread	Double Tap: Spread:
Zoom Out	Double Tap (once zoomed level has maxed out or Pinch	Double Tap: Pinch:
View All Tabs	Pinch (when page is at "fit width" zoom level)
Next Tab	Three-finger Swipe Left
Previous Tab	Three-finger Swipe Right
Close Tab	Five-finger Scrunch
New Tab	TBD or No Gesture	--
Open in New Tab	Long Tap (on link) then Tap on "Open in New Tab"
Bookmark Page	Dog-ear (Diagonal Swipe from bottom-right to top-right)
Open Bookmarks	TBD or No Gesture	--
Follow Link	One-finger Tap
Access to Awesomebar	TBD or No Gesture	--
Show All History	TBD or No Gesture	--
Site Info	TBD or No Gesture	--
Settings/Preferences/Add-ons	TBD or No Gesture	--
Share	TBD or No Gesture	--
Contextual Menu	Long Tap (on link)
Reload Page	TBD or No Gesture	--
Stop Loading Page	TBD or No Gesture	--
Access to Firefox Home	TBD or No Gesture	--
Full Screen	Five-finger Splay
Save as PDF	TBD or No Gesture	--
Save Webpage	TBD or No Gesture	--

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.