(function(){
Ext.ns('Ext.a11y');
Ext.a11y.Frame = Ext.extend(Object, {
initialized: false,
constructor: function(size, color){
this.setSize(size || 1);
this.setColor(color || '15428B');
},
init: function(){
if (!this.initialized) {
this.sides = [];
var s, i;
this.ct = Ext.DomHelper.append(document.body, {
cls: 'x-a11y-focusframe'
}, true);
for (i = 0; i < 4; i++) {
s = Ext.DomHelper.append(this.ct, {
cls: 'x-a11y-focusframe-side',
style: 'background-color: #' + this.color
}, true);
s.visibilityMode = Ext.Element.DISPLAY;
this.sides.push(s);
}
this.frameTask = new Ext.util.DelayedTask(function(el){
var newEl = Ext.get(el);
if (newEl != this.curEl) {
var w = newEl.getWidth();
var h = newEl.getHeight();
this.sides[0].show().setSize(w, this.size).anchorTo(el, 'tl', [0, -1]);
this.sides[2].show().setSize(w, this.size).anchorTo(el, 'bl', [0, -1]);
this.sides[1].show().setSize(this.size, h).anchorTo(el, 'tr', [-1, 0]);
this.sides[3].show().setSize(this.size, h).anchorTo(el, 'tl', [-1, 0]);
this.curEl = newEl;
}
}, this);
this.unframeTask = new Ext.util.DelayedTask(function(){
if (this.initialized) {
this.sides[0].hide();
this.sides[1].hide();
this.sides[2].hide();
this.sides[3].hide();
this.curEl = null;
}
}, this);
this.initialized = true;
}
},
frame: function(el){
this.init();
this.unframeTask.cancel();
this.frameTask.delay(2, false, false, [el]);
},
unframe: function(){
this.init();
this.unframeTask.delay(2);
},
setSize: function(size){
this.size = size;
},
setColor: function(color){
this.color = color;
}
});
Ext.a11y.FocusFrame = new Ext.a11y.Frame(2, '15428B');
Ext.a11y.RelayFrame = new Ext.a11y.Frame(1, '6B8CBF');
Ext.a11y.Focusable = Ext.extend(Ext.util.Observable, {
constructor: function(el, relayTo, noFrame, frameEl){
Ext.a11y.Focusable.superclass.constructor.call(this);
this.addEvents('focus', 'blur', 'left', 'right', 'up', 'down', 'esc', 'enter', 'space');
if (el instanceof Ext.Component) {
this.el = el.el;
this.setComponent(el);
}
else {
this.el = Ext.get(el);
this.setComponent(null);
}
this.setRelayTo(relayTo)
this.setNoFrame(noFrame);
this.setFrameEl(frameEl);
this.init();
Ext.a11y.FocusMgr.register(this);
},
init: function(){
this.el.dom.tabIndex = '1';
this.el.addClass('x-a11y-focusable');
this.el.on({
focus: this.onFocus,
blur: this.onBlur,
keydown: this.onKeyDown,
scope: this
});
},
setRelayTo: function(relayTo){
this.relayTo = relayTo ? Ext.a11y.FocusMgr.get(relayTo) : null;
},
setNoFrame: function(noFrame){
this.noFrame = (noFrame === true) ? true : false;
},
setFrameEl: function(frameEl){
this.frameEl = frameEl && Ext.get(frameEl) || this.el;
},
setComponent: function(cmp){
this.component = cmp || null;
},
onKeyDown: function(e, t){
var k = e.getKey(), SK = Ext.a11y.Focusable.SpecialKeys, ret, tf;
tf = (t !== this.el.dom) ? Ext.a11y.FocusMgr.get(t, true) : this;
if (!tf) {
// this can happen when you are on a focused item within a panel body
// that is not a Ext.a11y.Focusable
tf = Ext.a11y.FocusMgr.get(Ext.fly(t).parent('.x-a11y-focusable'));
}
if (SK[k] !== undefined) {
ret = this.fireEvent(SK[k], e, t, tf, this);
}
if (ret === false || this.fireEvent('keydown', e, t, tf, this) === false) {
e.stopEvent();
}
},
focus: function(){
this.el.dom.focus();
},
blur: function(){
this.el.dom.blur();
},
onFocus: function(e, t){
this.el.addClass('x-a11y-focused');
if (this.relayTo) {
this.relayTo.el.addClass('x-a11y-focused-relay');
if (!this.relayTo.noFrame) {
Ext.a11y.FocusFrame.frame(this.relayTo.frameEl);
}
if (!this.noFrame) {
Ext.a11y.RelayFrame.frame(this.frameEl);
}
}
else {
if (!this.noFrame) {
Ext.a11y.FocusFrame.frame(this.frameEl);
}
}
this.fireEvent('focus', e, t, this);
},
onBlur: function(e, t){
if (this.relayTo) {
this.relayTo.el.removeClass('x-a11y-focused-relay');
Ext.a11y.RelayFrame.unframe();
}
this.el.removeClass('x-a11y-focused');
Ext.a11y.FocusFrame.unframe();
this.fireEvent('blur', e, t, this);
},
destroy: function(){
this.el.un('keydown', this.onKeyDown);
this.el.un('focus', this.onFocus);
this.el.un('blur', this.onBlur);
this.el.removeClass('x-a11y-focusable');
this.el.removeClass('x-a11y-focused');
if (this.relayTo) {
this.relayTo.el.removeClass('x-a11y-focused-relay');
}
}
});
Ext.a11y.FocusItem = Ext.extend(Object, {
constructor: function(el, enableTabbing){
Ext.a11y.FocusItem.superclass.constructor.call(this);
this.el = Ext.get(el);
this.fi = new Ext.a11y.Focusable(el);
this.fi.setComponent(this);
this.fi.on('tab', this.onTab, this);
this.enableTabbing = enableTabbing === true ? true : false;
},
getEnterItem: function(){
if (this.enableTabbing) {
var items = this.getFocusItems();
if (items && items.length) {
return items[0];
}
}
},
getFocusItems: function(){
if (this.enableTabbing) {
return this.el.query('a, button, input, select');
}
return null;
},
onTab: function(e, t){
var items = this.getFocusItems(), i;
if (items && items.length && (i = items.indexOf(t)) !== -1) {
if (e.shiftKey && i > 0) {
e.stopEvent();
items[i - 1].focus();
Ext.a11y.FocusFrame.frame.defer(20, Ext.a11y.FocusFrame, [this.el]);
return;
}
else
if (!e.shiftKey && i < items.length - 1) {
e.stopEvent();
items[i + 1].focus();
Ext.a11y.FocusFrame.frame.defer(20, Ext.a11y.FocusFrame, [this.el]);
return;
}
}
},
focus: function(){
if (this.enableTabbing) {
var items = this.getFocusItems();
if (items && items.length) {
items[0].focus();
Ext.a11y.FocusFrame.frame.defer(20, Ext.a11y.FocusFrame, [this.el]);
return;
}
}
this.fi.focus();
},
blur: function(){
this.fi.blur();
}
});
Ext.a11y.FocusMgr = function(){
var all = new Ext.util.MixedCollection();
return {
register: function(f){
all.add(f.el && Ext.id(f.el), f);
},
unregister: function(f){
all.remove(f);
},
get: function(el, noCreate){
return all.get(Ext.id(el)) || (noCreate ? false : new Ext.a11y.Focusable(el));
},
all: all
}
}();
Ext.a11y.Focusable.SpecialKeys = {};
Ext.a11y.Focusable.SpecialKeys[Ext.EventObjectImpl.prototype.LEFT] = 'left';
Ext.a11y.Focusable.SpecialKeys[Ext.EventObjectImpl.prototype.RIGHT] = 'right';
Ext.a11y.Focusable.SpecialKeys[Ext.EventObjectImpl.prototype.DOWN] = 'down';
Ext.a11y.Focusable.SpecialKeys[Ext.EventObjectImpl.prototype.UP] = 'up';
Ext.a11y.Focusable.SpecialKeys[Ext.EventObjectImpl.prototype.ESC] = 'esc';
Ext.a11y.Focusable.SpecialKeys[Ext.EventObjectImpl.prototype.ENTER] = 'enter';
Ext.a11y.Focusable.SpecialKeys[Ext.EventObjectImpl.prototype.SPACE] = 'space';
Ext.a11y.Focusable.SpecialKeys[Ext.EventObjectImpl.prototype.TAB] = 'tab';
// we use the new observeClass method to fire our new initFocus method on components
Ext.util.Observable.observeClass(Ext.Component);
Ext.Component.on('render', function(cmp){
cmp.initFocus();
cmp.initARIA();
});
Ext.override(Ext.Component, {
initFocus: Ext.emptyFn,
initARIA: Ext.emptyFn
});
Ext.override(Ext.Container, {
isFocusable: true,
noFocus: false,
// private
initFocus: function(){
if (!this.fi && !this.noFocus) {
this.fi = new Ext.a11y.Focusable(this);
}
this.mon(this.fi, {
focus: this.onFocus,
blur: this.onBlur,
tab: this.onTab,
enter: this.onEnter,
esc: this.onEsc,
scope: this
});
if (this.hidden) {
this.isFocusable = false;
}
this.on('show', function(){
this.isFocusable = true;
}, this);
this.on('hide', function(){
this.isFocusable = false;
}, this);
},
focus: function(){
this.fi.focus();
},
blur: function(){
this.fi.blur();
},
enter: function(){
var eitem = this.getEnterItem();
if (eitem) {
eitem.focus();
}
},
onFocus: Ext.emptyFn,
onBlur: Ext.emptyFn,
onTab: function(e, t, tf){
var rf = tf.relayTo || tf;
if (rf.component && rf.component !== this) {
e.stopEvent();
var item = e.shiftKey ? this.getPreviousFocus(rf.component) : this.getNextFocus(rf.component);
item.focus();
}
},
onEnter: function(e, t, tf){
// check to see if enter is pressed while "on" the panel
if (tf.component && tf.component === this) {
e.stopEvent();
this.enter();
}
e.stopPropagation();
},
onEsc: function(e, t){
e.preventDefault();
// check to see if esc is pressed while "inside" the panel
// or while "on" the panel
if (t === this.el.dom) {
// "on" the panel, check if this panel has an owner panel and focus that
// we dont stop the event in this case so that this same check will be
// done for this ownerCt
if (this.ownerCt) {
this.ownerCt.focus();
}
}
else {
// we were inside the panel when esc was pressed,
// so go back "on" the panel
if (this.ownerCt && this.ownerCt.isFocusable) {
var si = this.ownerCt.getFocusItems();
if (si && si.getCount() > 1) {
e.stopEvent();
}
}
this.focus();
}
},
getFocusItems: function(){
return this.items &&
this.items.filterBy(function(o){
return o.isFocusable;
}) ||
null;
},
getEnterItem: function(){
var ci = this.getFocusItems(), length = ci ? ci.getCount() : 0;
if (length === 1) {
return ci.first().getEnterItem && ci.first().getEnterItem() || ci.first();
}
else
if (length > 1) {
return ci.first();
}
},
getNextFocus: function(current){
var items = this.getFocusItems(), next = current, i = items.indexOf(current), length = items.getCount();
if (i === length - 1) {
next = items.first();
}
else {
next = items.get(i + 1);
}
return next;
},
getPreviousFocus: function(current){
var items = this.getFocusItems(), prev = current, i = items.indexOf(current), length = items.getCount();
if (i === 0) {
prev = items.last();
}
else {
prev = items.get(i - 1);
}
return prev;
},
getFocusable : function() {
return this.fi;
}
});
Ext.override(Ext.Panel, {
/**
* @cfg {Boolean} enableTabbing true to enable tabbing. Default is false.
*/
getFocusItems: function(){
// items gets all the items inside the body
var items = Ext.Panel.superclass.getFocusItems.call(this), bodyFocus = null;
if (!items) {
items = new Ext.util.MixedCollection();
this.bodyFocus = this.bodyFocus || new Ext.a11y.FocusItem(this.body, this.enableTabbing);
items.add('body', this.bodyFocus);
}
// but panels can also have tbar, bbar, fbar
if (this.tbar && this.topToolbar) {
items.insert(0, this.topToolbar);
}
if (this.bbar && this.bottomToolbar) {
items.add(this.bottomToolbar);
}
if (this.fbar) {
items.add(this.fbar);
}
return items;
}
});
Ext.override(Ext.TabPanel, {
// private
initFocus: function(){
Ext.TabPanel.superclass.initFocus.call(this);
this.mon(this.fi, {
left: this.onLeft,
right: this.onRight,
scope: this
});
},
onLeft: function(e){
if (!this.activeTab) {
return;
}
e.stopEvent();
var prev = this.items.itemAt(this.items.indexOf(this.activeTab) - 1);
if (prev) {
this.setActiveTab(prev);
}
return false;
},
onRight: function(e){
if (!this.activeTab) {
return;
}
e.stopEvent();
var next = this.items.itemAt(this.items.indexOf(this.activeTab) + 1);
if (next) {
this.setActiveTab(next);
}
return false;
}
});
Ext.override(Ext.tree.TreeNodeUI, {
// private
focus: function(){
this.node.getOwnerTree().bodyFocus.focus();
}
});
Ext.override(Ext.tree.TreePanel, {
// private
afterRender : function(){
Ext.tree.TreePanel.superclass.afterRender.call(this);
this.root.render();
if(!this.rootVisible){
this.root.renderChildren();
}
this.bodyFocus = new Ext.a11y.FocusItem(this.body.down('.x-tree-root-ct'));
this.bodyFocus.fi.setFrameEl(this.body);
}
});
Ext.override(Ext.grid.GridPanel, {
initFocus: function(){
Ext.grid.GridPanel.superclass.initFocus.call(this);
this.bodyFocus = new Ext.a11y.FocusItem(this.view.focusEl);
this.bodyFocus.fi.setFrameEl(this.body);
}
});
Ext.override(Ext.Button, {
isFocusable: true,
noFocus: false,
initFocus: function(){
Ext.Button.superclass.initFocus.call(this);
this.fi = this.fi || new Ext.a11y.Focusable(this.btnEl, null, null, this.el);
this.fi.setComponent(this);
this.mon(this.fi, {
focus: this.onFocus,
blur: this.onBlur,
scope: this
});
if (this.menu) {
this.mon(this.fi, 'down', this.showMenu, this);
this.on('menuhide', this.focus, this);
}
if (this.hidden) {
this.isFocusable = false;
}
this.on('show', function(){
this.isFocusable = true;
}, this);
this.on('hide', function(){
this.isFocusable = false;
}, this);
},
focus: function(){
this.fi.focus();
},
blur: function(){
this.fi.blur();
},
onFocus: function(){
if (!this.disabled) {
this.el.addClass("x-btn-focus");
}
},
onBlur: function(){
this.el.removeClass("x-btn-focus");
}
});
Ext.override(Ext.Toolbar, {
initFocus: function(){
Ext.Toolbar.superclass.initFocus.call(this);
this.mon(this.fi, {
left: this.onLeft,
right: this.onRight,
scope: this
});
this.on('focus', this.onButtonFocus, this, {
stopEvent: true
});
},
addItem: function(item){
Ext.Toolbar.superclass.add.apply(this, arguments);
if (item.rendered && item.fi !== undefined) {
item.fi.setRelayTo(this.el);
this.relayEvents(item.fi, ['focus']);
}
else {
item.on('render', function(){
if (item.fi !== undefined) {
item.fi.setRelayTo(this.el);
this.relayEvents(item.fi, ['focus']);
}
}, this, {
single: true
});
}
return item;
},
onFocus: function(){
var items = this.getFocusItems();
if (items && items.getCount() > 0) {
if (this.lastFocus && items.indexOf(this.lastFocus) !== -1) {
this.lastFocus.focus();
}
else {
items.first().focus();
}
}
},
onButtonFocus: function(e, t, tf){
this.lastFocus = tf.component || null;
},
onLeft: function(e, t, tf){
e.stopEvent();
this.getPreviousFocus(tf.component).focus();
},
onRight: function(e, t, tf){
e.stopEvent();
this.getNextFocus(tf.component).focus();
},
getEnterItem: Ext.emptyFn,
onTab: Ext.emptyFn,
onEsc: Ext.emptyFn
});
Ext.override(Ext.menu.BaseItem, {
initFocus: function(){
this.fi = new Ext.a11y.Focusable(this, this.parentMenu && this.parentMenu.el || null, true);
}
});
Ext.override(Ext.menu.Menu, {
initFocus: function(){
this.fi = new Ext.a11y.Focusable(this);
this.focusEl = this.fi;
}
});
Ext.a11y.WindowMgr = new Ext.WindowGroup();
Ext.apply(Ext.WindowMgr, {
bringToFront: function(win){
Ext.a11y.WindowMgr.bringToFront.call(this, win);
if (win.modal) {
win.enter();
}
else {
win.focus();
}
}
});
Ext.override(Ext.Window, {
initFocus: function(){
Ext.Window.superclass.initFocus.call(this);
this.on('beforehide', function(){
Ext.a11y.RelayFrame.unframe();
Ext.a11y.FocusFrame.unframe();
});
}
});
Ext.override(Ext.form.Field, {
isFocusable: true,
noFocus: false,
initFocus: function(){
this.fi = this.fi || new Ext.a11y.Focusable(this, null, true);
Ext.form.Field.superclass.initFocus.call(this);
if (this.hidden) {
this.isFocusable = false;
}
this.on('show', function(){
this.isFocusable = true;
}, this);
this.on('hide', function(){
this.isFocusable = false;
}, this);
}
});
Ext.override(Ext.FormPanel, {
initFocus: function(){
Ext.FormPanel.superclass.initFocus.call(this);
this.on('focus', this.onFieldFocus, this, {
stopEvent: true
});
},
// private
createForm: function(){
delete this.initialConfig.listeners;
var form = new Ext.form.BasicForm(null, this.initialConfig);
form.afterMethod('add', this.formItemAdd, this);
return form;
},
formItemAdd: function(item){
item.on('render', function(field){
field.fi.setRelayTo(this.el);
this.relayEvents(field.fi, ['focus']);
}, this, {
single: true
});
},
onFocus: function(){
var items = this.getFocusItems();
if (items && items.getCount() > 0) {
if (this.lastFocus && items.indexOf(this.lastFocus) !== -1) {
this.lastFocus.focus();
}
else {
items.first().focus();
}
}
},
onFieldFocus: function(e, t, tf){
this.lastFocus = tf.component || null;
},
onTab: function(e, t, tf){
if (tf.relayTo.component === this) {
var item = e.shiftKey ? this.getPreviousFocus(tf.component) : this.getNextFocus(tf.component);
if (item) {
ev.stopEvent();
item.focus();
return;
}
}
Ext.FormPanel.superclass.onTab.apply(this, arguments);
},
getNextFocus: function(current){
var items = this.getFocusItems(), i = items.indexOf(current), length = items.getCount();
return (i < length - 1) ? items.get(i + 1) : false;
},
getPreviousFocus: function(current){
var items = this.getFocusItems(), i = items.indexOf(current), length = items.getCount();
return (i > 0) ? items.get(i - 1) : false;
}
});
Ext.override(Ext.Viewport, {
initFocus: function(){
Ext.Viewport.superclass.initFocus.apply(this);
this.mon(Ext.get(document), 'focus', this.focus, this);
this.mon(Ext.get(document), 'blur', this.blur, this);
this.fi.setNoFrame(true);
},
onTab: function(e, t, tf, f){
e.stopEvent();
if (tf === f) {
items = this.getFocusItems();
if (items && items.getCount() > 0) {
items.first().focus();
}
}
else {
var rf = tf.relayTo || tf;
var item = e.shiftKey ? this.getPreviousFocus(rf.component) : this.getNextFocus(rf.component);
item.focus();
}
}
});
})();