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Library
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package fmlib_browser
Subscriptions to global events.
Basics
val none : 'm tGeneric subscription to windows events
on_window event_type decode
Subscribe to window events of type event_type. Examples
on_window "resize" decode
on_window "keydown" decodeSubscribe to incoming messages from javascript
on_message decode
Subscribe to incoming messages from the javascript world. If there is an incoming message (a javascript object) then decode the object with the help of the function decode and send the decoded value as a message to the update function of the application.
Subscribe to timer events
every millis f Subscribe to an event which is fired every millis milliseconds. Use f to map the posix time into a message for the update function.
Subscribe to keyboard events
val on_keydown : (string -> 'm) -> 'm tSubscribe to mouse events
The following mouse event subscriptions just decode the clientX and clientY value of the mouse event. But a mouse event has much more information. You can get a customized subscription which decodes more mouse event data by just writing a decoder decode which decodes all values from a mouse event which are of interest and subscribe to the mouse event e.g. by on_window "mouseup" decode.
val on_mouse_down : (int -> int -> 'm) -> 'm tSubscribe to mousedown events.
val on_mouse_move : (int -> int -> 'm) -> 'm tSubscribe to mousemove events.
val on_mouse_up : (int -> int -> 'm) -> 'm tSubscribe to mouseup events.
Subscribe to the window resize event
val on_resize : (int -> int -> 'm) -> 'm ton_resize f Subscribe to the window resize event and report the innerWidth and innerHeight properties to the function f to generate the message for the update function.
Subscribe to the window visibility change event
val on_visibility_change : (string -> 'm) -> 'm ton_visibility_change f Subscribe to the window visibility change event and report the visibility state which is either "visible" or "hidden" to the function f to generate the message for the update function.