KeyNav.js
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/**
* @private
*/
Ext.define('Ext.menu.KeyNav', {
extend: 'Ext.util.KeyNav',
requires: ['Ext.FocusManager'],
constructor: function(menu) {
var me = this;
me.menu = menu;
me.callParent([menu.el, {
down: me.down,
enter: me.enter,
esc: me.escape,
left: me.left,
right: me.right,
space: me.enter,
tab: me.tab,
up: me.up
}]);
},
down: function(e) {
var me = this,
fi = me.menu.focusedItem;
if (fi && e.getKey() == Ext.EventObject.DOWN && me.isWhitelisted(fi)) {
return true;
}
me.focusNextItem(1);
},
enter: function(e) {
var menu = this.menu,
focused = menu.focusedItem;
if (menu.activeItem) {
menu.onClick(e);
} else if (focused && focused.isFormField) {
// prevent stopEvent being called
return true;
}
},
escape: function(e) {
Ext.menu.Manager.hideAll();
},
focusNextItem: function(step) {
var menu = this.menu,
items = menu.items,
focusedItem = menu.focusedItem,
startIdx = focusedItem ? items.indexOf(focusedItem) : -1,
idx = startIdx + step,
item;
while (idx != startIdx) {
if (idx < 0) {
idx = items.length - 1;
} else if (idx >= items.length) {
idx = 0;
}
item = items.getAt(idx);
if (menu.canActivateItem(item)) {
menu.setActiveItem(item);
break;
}
idx += step;
}
},
isWhitelisted: function(item) {
return Ext.FocusManager.isWhitelisted(item);
},
left: function(e) {
var menu = this.menu,
fi = menu.focusedItem,
ai = menu.activeItem;
if (fi && this.isWhitelisted(fi)) {
return true;
}
menu.hide();
if (menu.parentMenu) {
menu.parentMenu.focus();
}
},
right: function(e) {
var menu = this.menu,
fi = menu.focusedItem,
ai = menu.activeItem,
am;
if (fi && this.isWhitelisted(fi)) {
return true;
}
if (ai) {
am = menu.activeItem.menu;
if (am) {
ai.expandMenu(0);
Ext.defer(function() {
am.setActiveItem(am.items.getAt(0));
}, 25);
}
}
},
tab: function(e) {
var me = this;
if (e.shiftKey) {
me.up(e);
} else {
me.down(e);
}
},
up: function(e) {
var me = this,
fi = me.menu.focusedItem;
if (fi && e.getKey() == Ext.EventObject.UP && me.isWhitelisted(fi)) {
return true;
}
me.focusNextItem(-1);
}
});