app/assets/javascripts/ext/src/widgets/menu/Menu.js
/*!
* Ext JS Library 3.3.0
* Copyright(c) 2006-2010 Ext JS, Inc.
* licensing@extjs.com
* http://www.extjs.com/license
*/
/**
* @class Ext.menu.Menu
* @extends Ext.Container
* <p>A menu object. This is the container to which you may add menu items. Menu can also serve as a base class
* when you want a specialized menu based off of another component (like {@link Ext.menu.DateMenu} for example).</p>
* <p>Menus may contain either {@link Ext.menu.Item menu items}, or general {@link Ext.Component Component}s.</p>
* <p>To make a contained general {@link Ext.Component Component} line up with other {@link Ext.menu.Item menu items}
* specify <tt>iconCls: 'no-icon'</tt>. This reserves a space for an icon, and indents the Component in line
* with the other menu items. See {@link Ext.form.ComboBox}.{@link Ext.form.ComboBox#getListParent getListParent}
* for an example.</p>
* <p>By default, Menus are absolutely positioned, floating Components. By configuring a Menu with
* <b><tt>{@link #floating}:false</tt></b>, a Menu may be used as child of a Container.</p>
*
* @xtype menu
*/
Ext.menu.Menu = Ext.extend(Ext.Container, {
/**
* @cfg {Object} defaults
* A config object that will be applied to all items added to this container either via the {@link #items}
* config or via the {@link #add} method. The defaults config can contain any number of
* name/value property pairs to be added to each item, and should be valid for the types of items
* being added to the menu.
*/
/**
* @cfg {Mixed} items
* An array of items to be added to this menu. Menus may contain either {@link Ext.menu.Item menu items},
* or general {@link Ext.Component Component}s.
*/
/**
* @cfg {Number} minWidth The minimum width of the menu in pixels (defaults to 120)
*/
minWidth : 120,
/**
* @cfg {Boolean/String} shadow True or 'sides' for the default effect, 'frame' for 4-way shadow, and 'drop'
* for bottom-right shadow (defaults to 'sides')
*/
shadow : 'sides',
/**
* @cfg {String} subMenuAlign The {@link Ext.Element#alignTo} anchor position value to use for submenus of
* this menu (defaults to 'tl-tr?')
*/
subMenuAlign : 'tl-tr?',
/**
* @cfg {String} defaultAlign The default {@link Ext.Element#alignTo} anchor position value for this menu
* relative to its element of origin (defaults to 'tl-bl?')
*/
defaultAlign : 'tl-bl?',
/**
* @cfg {Boolean} allowOtherMenus True to allow multiple menus to be displayed at the same time (defaults to false)
*/
allowOtherMenus : false,
/**
* @cfg {Boolean} ignoreParentClicks True to ignore clicks on any item in this menu that is a parent item (displays
* a submenu) so that the submenu is not dismissed when clicking the parent item (defaults to false).
*/
ignoreParentClicks : false,
/**
* @cfg {Boolean} enableScrolling True to allow the menu container to have scroller controls if the menu is too long (defaults to true).
*/
enableScrolling : true,
/**
* @cfg {Number} maxHeight The maximum height of the menu. Only applies when enableScrolling is set to True (defaults to null).
*/
maxHeight : null,
/**
* @cfg {Number} scrollIncrement The amount to scroll the menu. Only applies when enableScrolling is set to True (defaults to 24).
*/
scrollIncrement : 24,
/**
* @cfg {Boolean} showSeparator True to show the icon separator. (defaults to true).
*/
showSeparator : true,
/**
* @cfg {Array} defaultOffsets An array specifying the [x, y] offset in pixels by which to
* change the default Menu popup position after aligning according to the {@link #defaultAlign}
* configuration. Defaults to <tt>[0, 0]</tt>.
*/
defaultOffsets : [0, 0],
/**
* @cfg {Boolean} plain
* True to remove the incised line down the left side of the menu. Defaults to <tt>false</tt>.
*/
plain : false,
/**
* @cfg {Boolean} floating
* <p>By default, a Menu configured as <b><code>floating:true</code></b>
* will be rendered as an {@link Ext.Layer} (an absolutely positioned,
* floating Component with zindex=15000).
* If configured as <b><code>floating:false</code></b>, the Menu may be
* used as child item of another Container instead of a free-floating
* {@link Ext.Layer Layer}.
*/
floating : true,
/**
* @cfg {Number} zIndex
* zIndex to use when the menu is floating.
*/
zIndex: 15000,
// private
hidden : true,
/**
* @cfg {String/Object} layout
* This class assigns a default layout (<code>layout:'<b>menu</b>'</code>).
* Developers <i>may</i> override this configuration option if another layout is required.
* See {@link Ext.Container#layout} for additional information.
*/
layout : 'menu',
hideMode : 'offsets', // Important for laying out Components
scrollerHeight : 8,
autoLayout : true, // Provided for backwards compat
defaultType : 'menuitem',
bufferResize : false,
initComponent : function(){
if(Ext.isArray(this.initialConfig)){
Ext.apply(this, {items:this.initialConfig});
}
this.addEvents(
/**
* @event click
* Fires when this menu is clicked (or when the enter key is pressed while it is active)
* @param {Ext.menu.Menu} this
* @param {Ext.menu.Item} menuItem The menu item that was clicked
* @param {Ext.EventObject} e
*/
'click',
/**
* @event mouseover
* Fires when the mouse is hovering over this menu
* @param {Ext.menu.Menu} this
* @param {Ext.EventObject} e
* @param {Ext.menu.Item} menuItem The menu item that was clicked
*/
'mouseover',
/**
* @event mouseout
* Fires when the mouse exits this menu
* @param {Ext.menu.Menu} this
* @param {Ext.EventObject} e
* @param {Ext.menu.Item} menuItem The menu item that was clicked
*/
'mouseout',
/**
* @event itemclick
* Fires when a menu item contained in this menu is clicked
* @param {Ext.menu.BaseItem} baseItem The BaseItem that was clicked
* @param {Ext.EventObject} e
*/
'itemclick'
);
Ext.menu.MenuMgr.register(this);
if(this.floating){
Ext.EventManager.onWindowResize(this.hide, this);
}else{
if(this.initialConfig.hidden !== false){
this.hidden = false;
}
this.internalDefaults = {hideOnClick: false};
}
Ext.menu.Menu.superclass.initComponent.call(this);
if(this.autoLayout){
var fn = this.doLayout.createDelegate(this, []);
this.on({
add: fn,
remove: fn
});
}
},
//private
getLayoutTarget : function() {
return this.ul;
},
// private
onRender : function(ct, position){
if(!ct){
ct = Ext.getBody();
}
var dh = {
id: this.getId(),
cls: 'x-menu ' + ((this.floating) ? 'x-menu-floating x-layer ' : '') + (this.cls || '') + (this.plain ? ' x-menu-plain' : '') + (this.showSeparator ? '' : ' x-menu-nosep'),
style: this.style,
cn: [
{tag: 'a', cls: 'x-menu-focus', href: '#', onclick: 'return false;', tabIndex: '-1'},
{tag: 'ul', cls: 'x-menu-list'}
]
};
if(this.floating){
this.el = new Ext.Layer({
shadow: this.shadow,
dh: dh,
constrain: false,
parentEl: ct,
zindex: this.zIndex
});
}else{
this.el = ct.createChild(dh);
}
Ext.menu.Menu.superclass.onRender.call(this, ct, position);
if(!this.keyNav){
this.keyNav = new Ext.menu.MenuNav(this);
}
// generic focus element
this.focusEl = this.el.child('a.x-menu-focus');
this.ul = this.el.child('ul.x-menu-list');
this.mon(this.ul, {
scope: this,
click: this.onClick,
mouseover: this.onMouseOver,
mouseout: this.onMouseOut
});
if(this.enableScrolling){
this.mon(this.el, {
scope: this,
delegate: '.x-menu-scroller',
click: this.onScroll,
mouseover: this.deactivateActive
});
}
},
// private
findTargetItem : function(e){
var t = e.getTarget('.x-menu-list-item', this.ul, true);
if(t && t.menuItemId){
return this.items.get(t.menuItemId);
}
},
// private
onClick : function(e){
var t = this.findTargetItem(e);
if(t){
if(t.isFormField){
this.setActiveItem(t);
}else if(t instanceof Ext.menu.BaseItem){
if(t.menu && this.ignoreParentClicks){
t.expandMenu();
e.preventDefault();
}else if(t.onClick){
t.onClick(e);
this.fireEvent('click', this, t, e);
}
}
}
},
// private
setActiveItem : function(item, autoExpand){
if(item != this.activeItem){
this.deactivateActive();
if((this.activeItem = item).isFormField){
item.focus();
}else{
item.activate(autoExpand);
}
}else if(autoExpand){
item.expandMenu();
}
},
deactivateActive : function(){
var a = this.activeItem;
if(a){
if(a.isFormField){
//Fields cannot deactivate, but Combos must collapse
if(a.collapse){
a.collapse();
}
}else{
a.deactivate();
}
delete this.activeItem;
}
},
// private
tryActivate : function(start, step){
var items = this.items;
for(var i = start, len = items.length; i >= 0 && i < len; i+= step){
var item = items.get(i);
if(item.isVisible() && !item.disabled && (item.canActivate || item.isFormField)){
this.setActiveItem(item, false);
return item;
}
}
return false;
},
// private
onMouseOver : function(e){
var t = this.findTargetItem(e);
if(t){
if(t.canActivate && !t.disabled){
this.setActiveItem(t, true);
}
}
this.over = true;
this.fireEvent('mouseover', this, e, t);
},
// private
onMouseOut : function(e){
var t = this.findTargetItem(e);
if(t){
if(t == this.activeItem && t.shouldDeactivate && t.shouldDeactivate(e)){
this.activeItem.deactivate();
delete this.activeItem;
}
}
this.over = false;
this.fireEvent('mouseout', this, e, t);
},
// private
onScroll : function(e, t){
if(e){
e.stopEvent();
}
var ul = this.ul.dom, top = Ext.fly(t).is('.x-menu-scroller-top');
ul.scrollTop += this.scrollIncrement * (top ? -1 : 1);
if(top ? ul.scrollTop <= 0 : ul.scrollTop + this.activeMax >= ul.scrollHeight){
this.onScrollerOut(null, t);
}
},
// private
onScrollerIn : function(e, t){
var ul = this.ul.dom, top = Ext.fly(t).is('.x-menu-scroller-top');
if(top ? ul.scrollTop > 0 : ul.scrollTop + this.activeMax < ul.scrollHeight){
Ext.fly(t).addClass(['x-menu-item-active', 'x-menu-scroller-active']);
}
},
// private
onScrollerOut : function(e, t){
Ext.fly(t).removeClass(['x-menu-item-active', 'x-menu-scroller-active']);
},
/**
* If <code>{@link #floating}=true</code>, shows this menu relative to
* another element using {@link #showat}, otherwise uses {@link Ext.Component#show}.
* @param {Mixed} element The element to align to
* @param {String} position (optional) The {@link Ext.Element#alignTo} anchor position to use in aligning to
* the element (defaults to this.defaultAlign)
* @param {Ext.menu.Menu} parentMenu (optional) This menu's parent menu, if applicable (defaults to undefined)
*/
show : function(el, pos, parentMenu){
if(this.floating){
this.parentMenu = parentMenu;
if(!this.el){
this.render();
this.doLayout(false, true);
}
this.showAt(this.el.getAlignToXY(el, pos || this.defaultAlign, this.defaultOffsets), parentMenu);
}else{
Ext.menu.Menu.superclass.show.call(this);
}
},
/**
* Displays this menu at a specific xy position and fires the 'show' event if a
* handler for the 'beforeshow' event does not return false cancelling the operation.
* @param {Array} xyPosition Contains X & Y [x, y] values for the position at which to show the menu (coordinates are page-based)
* @param {Ext.menu.Menu} parentMenu (optional) This menu's parent menu, if applicable (defaults to undefined)
*/
showAt : function(xy, parentMenu){
if(this.fireEvent('beforeshow', this) !== false){
this.parentMenu = parentMenu;
if(!this.el){
this.render();
}
if(this.enableScrolling){
// set the position so we can figure out the constrain value.
this.el.setXY(xy);
//constrain the value, keep the y coordinate the same
xy[1] = this.constrainScroll(xy[1]);
xy = [this.el.adjustForConstraints(xy)[0], xy[1]];
}else{
//constrain to the viewport.
xy = this.el.adjustForConstraints(xy);
}
this.el.setXY(xy);
this.el.show();
Ext.menu.Menu.superclass.onShow.call(this);
if(Ext.isIE){
// internal event, used so we don't couple the layout to the menu
this.fireEvent('autosize', this);
if(!Ext.isIE8){
this.el.repaint();
}
}
this.hidden = false;
this.focus();
this.fireEvent('show', this);
}
},
constrainScroll : function(y){
var max, full = this.ul.setHeight('auto').getHeight(),
returnY = y, normalY, parentEl, scrollTop, viewHeight;
if(this.floating){
parentEl = Ext.fly(this.el.dom.parentNode);
scrollTop = parentEl.getScroll().top;
viewHeight = parentEl.getViewSize().height;
//Normalize y by the scroll position for the parent element. Need to move it into the coordinate space
//of the view.
normalY = y - scrollTop;
max = this.maxHeight ? this.maxHeight : viewHeight - normalY;
if(full > viewHeight) {
max = viewHeight;
//Set returnY equal to (0,0) in view space by reducing y by the value of normalY
returnY = y - normalY;
} else if(max < full) {
returnY = y - (full - max);
max = full;
}
}else{
max = this.getHeight();
}
// Always respect maxHeight
if (this.maxHeight){
max = Math.min(this.maxHeight, max);
}
if(full > max && max > 0){
this.activeMax = max - this.scrollerHeight * 2 - this.el.getFrameWidth('tb') - Ext.num(this.el.shadowOffset, 0);
this.ul.setHeight(this.activeMax);
this.createScrollers();
this.el.select('.x-menu-scroller').setDisplayed('');
}else{
this.ul.setHeight(full);
this.el.select('.x-menu-scroller').setDisplayed('none');
}
this.ul.dom.scrollTop = 0;
return returnY;
},
createScrollers : function(){
if(!this.scroller){
this.scroller = {
pos: 0,
top: this.el.insertFirst({
tag: 'div',
cls: 'x-menu-scroller x-menu-scroller-top',
html: ' '
}),
bottom: this.el.createChild({
tag: 'div',
cls: 'x-menu-scroller x-menu-scroller-bottom',
html: ' '
})
};
this.scroller.top.hover(this.onScrollerIn, this.onScrollerOut, this);
this.scroller.topRepeater = new Ext.util.ClickRepeater(this.scroller.top, {
listeners: {
click: this.onScroll.createDelegate(this, [null, this.scroller.top], false)
}
});
this.scroller.bottom.hover(this.onScrollerIn, this.onScrollerOut, this);
this.scroller.bottomRepeater = new Ext.util.ClickRepeater(this.scroller.bottom, {
listeners: {
click: this.onScroll.createDelegate(this, [null, this.scroller.bottom], false)
}
});
}
},
onLayout : function(){
if(this.isVisible()){
if(this.enableScrolling){
this.constrainScroll(this.el.getTop());
}
if(this.floating){
this.el.sync();
}
}
},
focus : function(){
if(!this.hidden){
this.doFocus.defer(50, this);
}
},
doFocus : function(){
if(!this.hidden){
this.focusEl.focus();
}
},
/**
* Hides this menu and optionally all parent menus
* @param {Boolean} deep (optional) True to hide all parent menus recursively, if any (defaults to false)
*/
hide : function(deep){
if (!this.isDestroyed) {
this.deepHide = deep;
Ext.menu.Menu.superclass.hide.call(this);
delete this.deepHide;
}
},
// private
onHide : function(){
Ext.menu.Menu.superclass.onHide.call(this);
this.deactivateActive();
if(this.el && this.floating){
this.el.hide();
}
var pm = this.parentMenu;
if(this.deepHide === true && pm){
if(pm.floating){
pm.hide(true);
}else{
pm.deactivateActive();
}
}
},
// private
lookupComponent : function(c){
if(Ext.isString(c)){
c = (c == 'separator' || c == '-') ? new Ext.menu.Separator() : new Ext.menu.TextItem(c);
this.applyDefaults(c);
}else{
if(Ext.isObject(c)){
c = this.getMenuItem(c);
}else if(c.tagName || c.el){ // element. Wrap it.
c = new Ext.BoxComponent({
el: c
});
}
}
return c;
},
applyDefaults : function(c) {
if (!Ext.isString(c)) {
c = Ext.menu.Menu.superclass.applyDefaults.call(this, c);
var d = this.internalDefaults;
if(d){
if(c.events){
Ext.applyIf(c.initialConfig, d);
Ext.apply(c, d);
}else{
Ext.applyIf(c, d);
}
}
}
return c;
},
// private
getMenuItem : function(config) {
if (!config.isXType) {
if (!config.xtype && Ext.isBoolean(config.checked)) {
return new Ext.menu.CheckItem(config);
}
return Ext.create(config, this.defaultType);
}
return config;
},
/**
* Adds a separator bar to the menu
* @return {Ext.menu.Item} The menu item that was added
*/
addSeparator : function() {
return this.add(new Ext.menu.Separator());
},
/**
* Adds an {@link Ext.Element} object to the menu
* @param {Mixed} el The element or DOM node to add, or its id
* @return {Ext.menu.Item} The menu item that was added
*/
addElement : function(el) {
return this.add(new Ext.menu.BaseItem({
el: el
}));
},
/**
* Adds an existing object based on {@link Ext.menu.BaseItem} to the menu
* @param {Ext.menu.Item} item The menu item to add
* @return {Ext.menu.Item} The menu item that was added
*/
addItem : function(item) {
return this.add(item);
},
/**
* Creates a new {@link Ext.menu.Item} based an the supplied config object and adds it to the menu
* @param {Object} config A MenuItem config object
* @return {Ext.menu.Item} The menu item that was added
*/
addMenuItem : function(config) {
return this.add(this.getMenuItem(config));
},
/**
* Creates a new {@link Ext.menu.TextItem} with the supplied text and adds it to the menu
* @param {String} text The text to display in the menu item
* @return {Ext.menu.Item} The menu item that was added
*/
addText : function(text){
return this.add(new Ext.menu.TextItem(text));
},
//private
onDestroy : function(){
Ext.EventManager.removeResizeListener(this.hide, this);
var pm = this.parentMenu;
if(pm && pm.activeChild == this){
delete pm.activeChild;
}
delete this.parentMenu;
Ext.menu.Menu.superclass.onDestroy.call(this);
Ext.menu.MenuMgr.unregister(this);
if(this.keyNav) {
this.keyNav.disable();
}
var s = this.scroller;
if(s){
Ext.destroy(s.topRepeater, s.bottomRepeater, s.top, s.bottom);
}
Ext.destroy(
this.el,
this.focusEl,
this.ul
);
}
});
Ext.reg('menu', Ext.menu.Menu);
// MenuNav is a private utility class used internally by the Menu
Ext.menu.MenuNav = Ext.extend(Ext.KeyNav, function(){
function up(e, m){
if(!m.tryActivate(m.items.indexOf(m.activeItem)-1, -1)){
m.tryActivate(m.items.length-1, -1);
}
}
function down(e, m){
if(!m.tryActivate(m.items.indexOf(m.activeItem)+1, 1)){
m.tryActivate(0, 1);
}
}
return {
constructor : function(menu){
Ext.menu.MenuNav.superclass.constructor.call(this, menu.el);
this.scope = this.menu = menu;
},
doRelay : function(e, h){
var k = e.getKey();
// Keystrokes within a form Field (e.g.: down in a Combo) do not navigate. Allow only TAB
if (this.menu.activeItem && this.menu.activeItem.isFormField && k != e.TAB) {
return false;
}
if(!this.menu.activeItem && e.isNavKeyPress() && k != e.SPACE && k != e.RETURN){
this.menu.tryActivate(0, 1);
return false;
}
return h.call(this.scope || this, e, this.menu);
},
tab: function(e, m) {
e.stopEvent();
if (e.shiftKey) {
up(e, m);
} else {
down(e, m);
}
},
up : up,
down : down,
right : function(e, m){
if(m.activeItem){
m.activeItem.expandMenu(true);
}
},
left : function(e, m){
m.hide();
if(m.parentMenu && m.parentMenu.activeItem){
m.parentMenu.activeItem.activate();
}
},
enter : function(e, m){
if(m.activeItem){
e.stopPropagation();
m.activeItem.onClick(e);
m.fireEvent('click', this, m.activeItem);
return true;
}
}
};
}());