There are two possible ways I can think of the shift key's behavior:

1. Either, pressing it once means that the key is down, then it toggles all the alphabets (caps to small case and vice-versa)

2. Or, user needs to explicitly keep pressing the shift key. We can keep this behavior for future enhancement since we would need to implement keyDown and keyUp for all the keys then 😿

Anyway, let's go via the simple way and later see if someone else can take up porting work to keyDown/keyUp.

click action on the touchpad should trigger left mouse button click. Right now, since primary button is not configurable, it is okay to hard code left mouse button.

Features

• The current state of caps lock should be determined and then accordingly the keyboard keys should be configured (capital letters or not).
• Small led right in the caps lock button is a good UI feature.
• And of course, pressing caps lock should toggle the actual caps lock state 😉

• Design remote (mouse pad and keys).
• On touch drag action should trigger mouse movement.
• Write control server side code to move mouse corresponding to the movement on the UI.
• [Edit] Add scroll feature as well. Maybe a vertical line and dragging on that vertical line will scroll it based on the direction of movement.
  Note: Look out for performance issue. Maybe websocket will be better here instead of making multiple HTTP requests.

• Design multimedia remote

• Play/pause button
• Volume controls (increase / decrease)
• Forward / rewind buttons
• Mute
• Fullscreen
• Brightness controls (increase / decrease)

• Javascrpt side code to interact with the server on keypress action

• Server side code to handle keypress.

Common actions like opening a specific window, performing something specific, etc. can be automatized. We can do this by providing user a page for his custom actions / shortcuts. The shortcuts can be made via small building blocks like keypress, keydown, keyup, type, etc. A good small use-case for this is:

Different people have different ways in which they watch Netflix. Some may have an app installed. While other may be opening it in their browser. So, a shortcut like "Open netflix" can be customized as follows:

Option 1. keypress(winleft) > type("netflix") > keypress(enter)

Option 2. keypress(winleft) > type("firefox") > keypress(enter) > type("netflix") > keypress(enter)

• Design keyboard

• The keyboard design should be such that the keys are properly spaced and not too small for the mobile interface.
• Should be adjustable according to landscape and portrait mode.
• Common keys should be there.
• Feedback to the user that the key click happened (maybe a key tap sound)

• Javascrpt side code to interact with the server on keypress action

• Server side code to handle keypress.

User should be able to switch window quickly. Probably a dedicated key which maps to

KeyDown(Alt) > KeyPress(Tab) > KeyUp(Alt)

But this will only switch between the last two active windows. We should be able to move across all the open apps / windows. I guess, the best we could do is to make something like below:

    [   <<   ]         [  Switch window  ]        [   >>   ]

Switch window tapped once will switch to last opened window (i.e. Alt + Tab)
Switch window tapped twice will keep the switcher opened and user can use << and >> keys to select. Clicking back on Switch window button will select the chosen window

User should be able to configure what key (or combination) is pressed when they press a button on the UI (remote control). This setting should be provided per remote and should be stored once configured.