Gecko/Touch

This table summarizes some of the broad features related to touch input on the web, and their implementation status on different Gecko platforms:

Platform	Touch Events	Pointer Events (bug 960316)	touch-action	async pan/zoom	mobile viewport
Android	yes	no	no (bug 1029631)	Java (bug 776030)	Java (bug 799585)
Firefox OS	yes	no	no (bug 960209)	Gecko APZC	Gecko
Linux	no	mouse only (disabled)	no	no	no
Mac	no	mouse only (disabled)	no	no (bug 1011833)	no
Windows desktop	disabled (bug win-touch-issues)	mouse only (disabled)	no (bug 1001440)	no	no
Windows metro	yes	yes (disabled)	yes	Gecko APZC	Gecko

Standards:

• W3C Touch Events
• W3C Pointer Events

Current work:

• Windows metro: Finish Pointer Events / touch-action as reference implementation for W3C spec (MS Open Tech).
• Windows desktop: Fix and enable Touch Events, and implement Pointer Events / touch-action (MS Open Tech, Platform Integration?).
• Firefox OS: Implement and enable pointer events / touch-action (MS Open Tech?).

Possible future priorities:

• Android: Unify Android and Gecko APZC and viewport code.
• Android: Implement Pointer Events / touch-action.
• Mac: Implement async pan/zoom for trackpad gestures.
• Windows desktop: Implement async pan/zoom for touch-screen and trackpad gestures.
• Platform: Implement CSS Device Adaptation to rationalize mobile viewport code (bug 747754).