According to Bug 928254 Gallery Spec, there's a new Slideshow feature in tablet To play slide show, tap slideshow icon to play in full screen. * Slideshow only available on photos Preset transition effect and interval time: Fade in/out, 2.5 sec to show image and 1 sec to transfer image. * Slideshow settings is under TBD, and the transition will fine-tune during the implementation.

Gary suggest we could put slideshow code in share/ folder, thus both gallery slideshow and photoframe can reuse the same code.

After discussion, we'd handle core gallery slideshow function in this bug, left homescreen to gallery slideshow web activity & settings to bug 929883

WIP https://github.com/cctuan/gaia/commit/804208da22c6f4c11403356a528c42b2ec61a1ff I have done a digital_frame.html/css/js , user can define what kinda slide effect in css file and set the class name in the js file, and then use web activity to launch it . The pbs I have not yet solved, 1. digitalframe activity cannot be launched: I write test code with uitest and try to launch it but it doesn't work. Only after I replace all the content of open.html and use "open" to launch it 2. not yet handle when it stop and return 3. not yet handle when user touch screen 4. not yet handle db events (need UX input)

Hi Neo, Just some questions. What should we do if we receive below events in slideshow? 1. db is upgrading or scanning 2. db is unavailable 3. card is removed 4. new picture inserted

As offline discussed, it might be not possible to launch slideshow immediately while we're viewing photos. So, I will try to move it to frames.js and try to less impact our current logic.

hi Neo, can you please reply comment #4?

as offline discussed, I'll put activity handler inside gallery.js and reuse all the handling method.

Slideshow & PhotoFrame spec from Neo

WIP https://github.com/mozilla-b2g/gaia/pull/13543 Still working on 1. performance on tablet: everything works fine on mobile and desktop, but on tablet, the screen seems to repaint each time when image is changed and background image is resized to fullscreen. 2. first slide not equals to currentFileIndex 3. test cases

implementation resource and ETA date are both agree with RD team. this has to be done before 1.3FC

Deassign myself from this bug.