Events - Keyman Engine for Web

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A number of events are exposed to allow the designer of a user interface to control the appearance and behavior of user interface elements. Standard event-processing requires all arguments to be passed as an array (object) with named member variables.

Two components of Keyman Engine for Web specify events:

• keyman object -- the main component
• keyman.osk object -- the on-screen keyboard component

Object events are handled in user code by passing the handler entry to the object, using addEventListener().

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keyman events

beforekeyboardchange

Called when keyboard input language about to change.

controlblurred

Called when input element loses focus.

controlfocused

Called when input element receives focus.

keyboardchange

Called when keyboard input language changed.

keyboardloaded

Called when keyboard code loaded.

keyboardregistered

Called when keyboard 'stub' processed (for listing as available keyboard).

loaduserinterface

Called when allow ui initialization.

unloaduserinterface

Called when allow ui clean-up.

For example, to define a user function to handle the KeymanWeb keyboardchange event, include:

keyman.addEventListener('keyboardchange',
  function(p)
  {
    ui.updateMenu(p.internalName,p.languageCode);
  });

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keyman.osk On Screen Keyboard events

configclick

Called when allows the UI to present KeymanWeb configuration options.

helpclick

Called when allows the UI to present a help page.

hide

Called when OSK hidden.

resizemove

Called when OSK resized or moved on desktop.

show

Called when OSK displayed.

For example, to add an event handler that modifies the user interface when the on-screen keyboard is displayed:

keyman.osk.addEventListener('show',
  function(p)
  {
    ui.updateUI(p.x, p.y, p.userLocated);
  });