Gallery Control browser extension

View next/previous image in a sequence with tap, click, or keyboard.

how to install

Search "Gallery Control" in your browser's add-on/extension manager, or visit the add-ons page at AMO using Firefox.

how to use

Tap left/right to advance in that direction. Tap center or spacebar to continue at that same rate*.

commands

• next shows the image after the current one.
  (key: Right Arrow, pointer: Right)
• previous shows the image before the current one.
  (key: Left Arrow, pointer: Left)
• larger shows the full size version of the current image.
  (key: Up Arrow, pointer: Top)
• smaller shows the thumbnail version of the current image.
  (key: Down Arrow, pointer: Bottom)
• pause/unpause continues next/previous at the same rate*.
  (key: Space, pointer: Middle)
• stop pauses and resets rate.
  (key: Escape, pointer: N/A)

*The rate when unpaused is taken from the recent rate of issuing "next"/"previous" commands. It defaults to 1Hz if the user has not established a rate, or if that rate is slower than the minimum (currently 0.25Hz, or once every 4 seconds).

pointer regions

Left, Right, Top, Middle, Bottom

+-------+
| | T | |
| |---| |
|L| M |R|
| |---| |
| | B | |
+-------+

• Left and Right are the outer 25% horizontally.
• Top and Bottom are the outer 25% vertically (excluding after Left and Right)
• Middle is the 50% left over in the middle.

how to build

Run npm start to build the packaged extension, and also prepare an unpacked version with manifest version 3 (for loading into Chrome).

Run npm run to list other script commands.