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some refactoring...

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Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2016-12-03 17:28:58 +03:00
parent 0deba5d277
commit 9fceef362d
1 changed files with 31 additions and 8 deletions
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37
ui (gen4)/features/keyboard.js
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@ -400,6 +400,21 @@ var KeyboardActions = actions.Actions({
'max-key-repeat-rate': 0,
'keyboard-repeat-pause-check': 100,
// Sets the target element to which the keyboard event handler
// is bound...
//
// Supported values:
// 'window' - window element
// 'document' - document element
// 'viewer' - the viewer (default)
// null - default element
// <css selector> - any css selector
//
// NOTE: this value is not live, to update the target restart
// the handler by cycling the toggler off and on...
// NOTE: the target element must be focusable...
'keyboard-event-source': 'window',
},
get keyboard(){
@ -408,8 +423,7 @@ var KeyboardActions = actions.Actions({
pauseKeyboardRepeat: ['- Interface/',
function(){
this.__keyboard_repeat_paused = true
}],
this.__keyboard_repeat_paused = true }],
toggleKeyboardHandling: ['- Interface/Toggle keyboard handling',
toggler.Toggler(null, function(_, state){
@ -435,14 +449,19 @@ var KeyboardActions = actions.Actions({
return true
}).bind(this)
// XXX this does not work yet...
//var target = this.ribbons.viewer
var target = $(document)
// start/reset keyboard handling...
if(state == 'on'){
var that = this
// NOTE: the target element must be focusable...
var target =
this.__keyboard_event_source =
this.config['keyboard-event-source'] == null
|| this.config['keyboard-event-source'] == 'viewer' ? this.ribbons.viewer
: this.config['keyboard-event-source'] == 'window' ? $(window)
: this.config['keyboard-event-source'] == 'document' ? $(document)
: $(this.config['keyboard-event-source'])
// need to reset...
if(this.__keyboard_handler != null){
target.off('keydown', this.__keyboard_handler)
@ -483,8 +502,12 @@ var KeyboardActions = actions.Actions({
// stop keyboard handling...
} else {
target.off('keydown', this.__keyboard_handler)
this.__keyboard_event_source
&& this.__keyboard_event_source
.off('keydown', this.__keyboard_handler)
delete this.__keyboard_handler
delete this.__keyboard_event_source
}
},
['on', 'off'])],