(function() {
/**
* Creates an item for a menu.
*
* @param {String} p_oObject String specifying the text of the menu item.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-74680021">HTMLLIElement</a>} p_oObject Object specifying
* the <code><li></code> element of the menu item.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-38450247">HTMLOptGroupElement</a>} p_oObject Object
* specifying the <code><optgroup></code> element of the menu item.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-70901257">HTMLOptionElement</a>} p_oObject Object
* specifying the <code><option></code> element of the menu item.
* @param {Object} p_oConfig Optional. Object literal specifying the
* configuration for the menu item. See configuration class documentation
* for more details.
* @class MenuItem
* @constructor
*/
YAHOO.widget.MenuItem = function(p_oObject, p_oConfig) {
if(p_oObject) {
if(p_oConfig) {
this.parent = p_oConfig.parent;
this.value = p_oConfig.value;
this.id = p_oConfig.id;
}
this.init(p_oObject, p_oConfig);
}
};
var Dom = YAHOO.util.Dom,
Module = YAHOO.widget.Module,
Menu = YAHOO.widget.Menu,
MenuItem = YAHOO.widget.MenuItem,
CustomEvent = YAHOO.util.CustomEvent,
Lang = YAHOO.lang,
m_oMenuItemTemplate,
/**
* Constant representing the name of the MenuItem's events
* @property EVENT_TYPES
* @private
* @final
* @type Object
*/
EVENT_TYPES = {
"MOUSE_OVER": "mouseover",
"MOUSE_OUT": "mouseout",
"MOUSE_DOWN": "mousedown",
"MOUSE_UP": "mouseup",
"CLICK": "click",
"KEY_PRESS": "keypress",
"KEY_DOWN": "keydown",
"KEY_UP": "keyup",
"ITEM_ADDED": "itemAdded",
"ITEM_REMOVED": "itemRemoved",
"FOCUS": "focus",
"BLUR": "blur",
"DESTROY": "destroy"
},
/**
* Constant representing the MenuItem's configuration properties
* @property DEFAULT_CONFIG
* @private
* @final
* @type Object
*/
DEFAULT_CONFIG = {
"TEXT": {
key: "text",
value: "",
validator: Lang.isString,
suppressEvent: true
},
"HELP_TEXT": {
key: "helptext",
supercedes: ["text"]
},
"URL": {
key: "url",
value: "#",
suppressEvent: true
},
"TARGET": {
key: "target",
suppressEvent: true
},
"EMPHASIS": {
key: "emphasis",
value: false,
validator: Lang.isBoolean,
suppressEvent: true,
supercedes: ["text"]
},
"STRONG_EMPHASIS": {
key: "strongemphasis",
value: false,
validator: Lang.isBoolean,
suppressEvent: true,
supercedes: ["text"]
},
"CHECKED": {
key: "checked",
value: false,
validator: Lang.isBoolean,
suppressEvent: true,
supercedes: ["text"]
},
"DISABLED": {
key: "disabled",
value: false,
validator: Lang.isBoolean,
suppressEvent: true,
supercedes: ["text"]
},
"SELECTED": {
key: "selected",
value: false,
validator: Lang.isBoolean,
suppressEvent: true
},
"SUBMENU": {
key: "submenu",
supercedes: ["text"]
},
"ONCLICK": {
key: "onclick"
},
"CLASS_NAME": {
key: "classname",
value: null,
validator: Lang.isString
}
};
MenuItem.prototype = {
// Constants
/**
* @property COLLAPSED_SUBMENU_INDICATOR_TEXT
* @description String representing the text for the <code><em></code>
* element used for the submenu arrow indicator.
* @default "Submenu collapsed. Click to expand submenu."
* @final
* @type String
*/
COLLAPSED_SUBMENU_INDICATOR_TEXT:
"Submenu collapsed. Click to expand submenu.",
/**
* @property EXPANDED_SUBMENU_INDICATOR_TEXT
* @description String representing the text for the submenu arrow indicator
* element (<code><em></code>) when the submenu is visible.
* @default "Submenu expanded. Click to collapse submenu."
* @final
* @type String
*/
EXPANDED_SUBMENU_INDICATOR_TEXT:
"Submenu expanded. Click to collapse submenu.",
/**
* @property DISABLED_SUBMENU_INDICATOR_TEXT
* @description String representing the text for the submenu arrow indicator
* element (<code><em></code>) when the menu item is disabled.
* @default "Submenu collapsed. (Item disabled.)."
* @final
* @type String
*/
DISABLED_SUBMENU_INDICATOR_TEXT: "Submenu collapsed. (Item disabled.)",
/**
* @property CHECKED_TEXT
* @description String representing the text to be used for the checked
* indicator element (<code><em></code>).
* @default "Checked."
* @final
* @type String
*/
CHECKED_TEXT: "Menu item checked.",
/**
* @property DISABLED_CHECKED_TEXT
* @description String representing the text to be used for the checked
* indicator element (<code><em></code>) when the menu item
* is disabled.
* @default "Checked. (Item disabled.)"
* @final
* @type String
*/
DISABLED_CHECKED_TEXT: "Checked. (Item disabled.)",
/**
* @property CSS_CLASS_NAME
* @description String representing the CSS class(es) to be applied to the
* <code><li></code> element of the menu item.
* @default "yuimenuitem"
* @final
* @type String
*/
CSS_CLASS_NAME: "yuimenuitem",
/**
* @property CSS_LABEL_CLASS_NAME
* @description String representing the CSS class(es) to be applied to the
* menu item's <code><a></code> element.
* @default "yuimenuitemlabel"
* @final
* @type String
*/
CSS_LABEL_CLASS_NAME: "yuimenuitemlabel",
/**
* @property SUBMENU_TYPE
* @description Object representing the type of menu to instantiate and
* add when parsing the child nodes of the menu item's source HTML element.
* @final
* @type YAHOO.widget.Menu
*/
SUBMENU_TYPE: null,
// Private member variables
/**
* @property _oAnchor
* @description Object reference to the menu item's
* <code><a></code> element.
* @default null
* @private
* @type <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-48250443">HTMLAnchorElement</a>
*/
_oAnchor: null,
/**
* @property _oHelpTextEM
* @description Object reference to the menu item's help text
* <code><em></code> element.
* @default null
* @private
* @type <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-58190037">HTMLElement</a>
*/
_oHelpTextEM: null,
/**
* @property _oSubmenu
* @description Object reference to the menu item's submenu.
* @default null
* @private
* @type YAHOO.widget.Menu
*/
_oSubmenu: null,
/**
* @property _oCheckedIndicator
* @description Object reference to the menu item's checkmark image.
* @default <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
* level-one-html.html#ID-58190037">HTMLElement</a>
* @private
* @type <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
* level-one-html.html#ID-58190037">HTMLElement</a>
*/
_oCheckedIndicator: null,
/**
* @property _oOnclickAttributeValue
* @description Object reference to the menu item's current value for the
* "onclick" configuration attribute.
* @default null
* @private
* @type Object
*/
_oOnclickAttributeValue: null,
/**
* @property _sClassName
* @description The current value of the "classname" configuration attribute.
* @default null
* @private
* @type String
*/
_sClassName: null,
// Public properties
/**
* @property constructor
* @description Object reference to the menu item's constructor function.
* @default YAHOO.widget.MenuItem
* @type YAHOO.widget.MenuItem
*/
constructor: MenuItem,
/**
* @property index
* @description Number indicating the ordinal position of the menu item in
* its group.
* @default null
* @type Number
*/
index: null,
/**
* @property groupIndex
* @description Number indicating the index of the group to which the menu
* item belongs.
* @default null
* @type Number
*/
groupIndex: null,
/**
* @property parent
* @description Object reference to the menu item's parent menu.
* @default null
* @type YAHOO.widget.Menu
*/
parent: null,
/**
* @property element
* @description Object reference to the menu item's
* <code><li></code> element.
* @default <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level
* -one-html.html#ID-74680021">HTMLLIElement</a>
* @type <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-74680021">HTMLLIElement</a>
*/
element: null,
/**
* @property srcElement
* @description Object reference to the HTML element (either
* <code><li></code>, <code><optgroup></code> or
* <code><option></code>) used create the menu item.
* @default <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
* level-one-html.html#ID-74680021">HTMLLIElement</a>|<a href="http://www.
* w3.org/TR/2000/WD-DOM-Level-1-20000929/level-one-html.html#ID-38450247"
* >HTMLOptGroupElement</a>|<a href="http://www.w3.org/TR/2000/WD-DOM-
* Level-1-20000929/level-one-html.html#ID-70901257">HTMLOptionElement</a>
* @type <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-74680021">HTMLLIElement</a>|<a href="http://www.w3.
* org/TR/2000/WD-DOM-Level-1-20000929/level-one-html.html#ID-38450247">
* HTMLOptGroupElement</a>|<a href="http://www.w3.org/TR/2000/WD-DOM-
* Level-1-20000929/level-one-html.html#ID-70901257">HTMLOptionElement</a>
*/
srcElement: null,
/**
* @property value
* @description Object reference to the menu item's value.
* @default null
* @type Object
*/
value: null,
/**
* @property submenuIndicator
* @description Object reference to the <code><em></code> element
* used to create the submenu indicator for the menu item.
* @default <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
* level-one-html.html#ID-58190037">HTMLElement</a>
* @type <a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/
* level-one-html.html#ID-58190037">HTMLElement</a>
*/
submenuIndicator: null,
/**
* @property browser
* @deprecated Use YAHOO.env.ua
* @description String representing the browser.
* @type String
*/
browser: Module.prototype.browser,
/**
* @property id
* @description Id of the menu item's root <code><li></code>
* element. This property should be set via the constructor using the
* configuration object literal. If an id is not specified, then one will
* be created using the "generateId" method of the Dom utility.
* @default null
* @type String
*/
id: null,
// Events
/**
* @event destroyEvent
* @description Fires when the menu item's <code><li></code>
* element is removed from its parent <code><ul></code> element.
* @type YAHOO.util.CustomEvent
*/
destroyEvent: null,
/**
* @event mouseOverEvent
* @description Fires when the mouse has entered the menu item. Passes
* back the DOM Event object as an argument.
* @type YAHOO.util.CustomEvent
*/
mouseOverEvent: null,
/**
* @event mouseOutEvent
* @description Fires when the mouse has left the menu item. Passes back
* the DOM Event object as an argument.
* @type YAHOO.util.CustomEvent
*/
mouseOutEvent: null,
/**
* @event mouseDownEvent
* @description Fires when the user mouses down on the menu item. Passes
* back the DOM Event object as an argument.
* @type YAHOO.util.CustomEvent
*/
mouseDownEvent: null,
/**
* @event mouseUpEvent
* @description Fires when the user releases a mouse button while the mouse
* is over the menu item. Passes back the DOM Event object as an argument.
* @type YAHOO.util.CustomEvent
*/
mouseUpEvent: null,
/**
* @event clickEvent
* @description Fires when the user clicks the on the menu item. Passes
* back the DOM Event object as an argument.
* @type YAHOO.util.CustomEvent
*/
clickEvent: null,
/**
* @event keyPressEvent
* @description Fires when the user presses an alphanumeric key when the
* menu item has focus. Passes back the DOM Event object as an argument.
* @type YAHOO.util.CustomEvent
*/
keyPressEvent: null,
/**
* @event keyDownEvent
* @description Fires when the user presses a key when the menu item has
* focus. Passes back the DOM Event object as an argument.
* @type YAHOO.util.CustomEvent
*/
keyDownEvent: null,
/**
* @event keyUpEvent
* @description Fires when the user releases a key when the menu item has
* focus. Passes back the DOM Event object as an argument.
* @type YAHOO.util.CustomEvent
*/
keyUpEvent: null,
/**
* @event focusEvent
* @description Fires when the menu item receives focus.
* @type YAHOO.util.CustomEvent
*/
focusEvent: null,
/**
* @event blurEvent
* @description Fires when the menu item loses the input focus.
* @type YAHOO.util.CustomEvent
*/
blurEvent: null,
/**
* @method init
* @description The MenuItem class's initialization method. This method is
* automatically called by the constructor, and sets up all DOM references
* for pre-existing markup, and creates required markup if it is not
* already present.
* @param {String} p_oObject String specifying the text of the menu item.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-74680021">HTMLLIElement</a>} p_oObject Object specifying
* the <code><li></code> element of the menu item.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-38450247">HTMLOptGroupElement</a>} p_oObject Object
* specifying the <code><optgroup></code> element of the menu item.
* @param {<a href="http://www.w3.org/TR/2000/WD-DOM-Level-1-20000929/level-
* one-html.html#ID-70901257">HTMLOptionElement</a>} p_oObject Object
* specifying the <code><option></code> element of the menu item.
* @param {Object} p_oConfig Optional. Object literal specifying the
* configuration for the menu item. See configuration class documentation
* for more details.
*/
init: function(p_oObject, p_oConfig) {
if(!this.SUBMENU_TYPE) {
this.SUBMENU_TYPE = Menu;
}
// Create the config object
this.cfg = new YAHOO.util.Config(this);
this.initDefaultConfig();
var SIGNATURE = CustomEvent.LIST,
oConfig = this.cfg,
sURL = "#",
oAnchor,
sTarget,
sText,
sId;
if(Lang.isString(p_oObject)) {
this._createRootNodeStructure();
oConfig.queueProperty("text", p_oObject);
}
else if(p_oObject && p_oObject.tagName) {
switch(p_oObject.tagName.toUpperCase()) {
case "OPTION":
this._createRootNodeStructure();
oConfig.queueProperty("text", p_oObject.text);
this.srcElement = p_oObject;
break;
case "OPTGROUP":
this._createRootNodeStructure();
oConfig.queueProperty("text", p_oObject.label);
this.srcElement = p_oObject;
this._initSubTree();
break;
case "LI":
// Get the anchor node (if it exists)
oAnchor = Dom.getFirstChild(p_oObject);
// Capture the "text" and/or the "URL"
if(oAnchor) {
sURL = oAnchor.getAttribute("href");
sTarget = oAnchor.getAttribute("target");
sText = oAnchor.innerHTML;
}
this.srcElement = p_oObject;
this.element = p_oObject;
this._oAnchor = oAnchor;
/*
Set these properties silently to sync up the
configuration object without making changes to the
element's DOM
*/
oConfig.setProperty("text", sText, true);
oConfig.setProperty("url", sURL, true);
oConfig.setProperty("target", sTarget, true);
this._initSubTree();
break;
}
}
if(this.element) {
sId = this.element.id;
if(!sId) {
sId = this.id || Dom.generateId();
this.element.id = sId;
}
this.id = sId;
Dom.addClass(this.element, this.CSS_CLASS_NAME);
Dom.addClass(this._oAnchor, this.CSS_LABEL_CLASS_NAME);
// Create custom events
this.mouseOverEvent = this.createEvent(EVENT_TYPES.MOUSE_OVER);
this.mouseOverEvent.signature = SIGNATURE;
this.mouseOutEvent = this.createEvent(EVENT_TYPES.MOUSE_OUT);
this.mouseOutEvent.signature = SIGNATURE;
this.mouseDownEvent = this.createEvent(EVENT_TYPES.MOUSE_DOWN);
this.mouseDownEvent.signature = SIGNATURE;
this.mouseUpEvent = this.createEvent(EVENT_TYPES.MOUSE_UP);
this.mouseUpEvent.signature = SIGNATURE;
this.clickEvent = this.createEvent(EVENT_TYPES.CLICK);
this.clickEvent.signature = SIGNATURE;
this.keyPressEvent = this.createEvent(EVENT_TYPES.KEY_PRESS);
this.keyPressEvent.signature = SIGNATURE;
this.keyDownEvent = this.createEvent(EVENT_TYPES.KEY_DOWN);
this.keyDownEvent.signature = SIGNATURE;
this.keyUpEvent = this.createEvent(EVENT_TYPES.KEY_UP);
this.keyUpEvent.signature = SIGNATURE;
this.focusEvent = this.createEvent(EVENT_TYPES.FOCUS);
this.focusEvent.signature = SIGNATURE;
this.blurEvent = this.createEvent(EVENT_TYPES.BLUR);
this.blurEvent.signature = SIGNATURE;
this.destroyEvent = this.createEvent(EVENT_TYPES.DESTROY);
this.destroyEvent.signature = SIGNATURE;
if(p_oConfig) {
oConfig.applyConfig(p_oConfig);
}
oConfig.fireQueue();
}
},
// Private methods
/**
* @method _createRootNodeStructure
* @description Creates the core DOM structure for the menu item.
* @private
*/
_createRootNodeStructure: function () {
var oElement,
oAnchor;
if(!m_oMenuItemTemplate) {
m_oMenuItemTemplate = document.createElement("li");
m_oMenuItemTemplate.innerHTML = "<a href=\"#\"></a>";
}
oElement = m_oMenuItemTemplate.cloneNode(true);
oElement.className = this.CSS_CLASS_NAME;
oAnchor = oElement.firstChild;
oAnchor.className = this.CSS_LABEL_CLASS_NAME;
this.element = oElement;
this._oAnchor = oAnchor;
},
/**
* @method _initSubTree
* @description Iterates the source element's childNodes collection and uses
* the child nodes to instantiate other menus.
* @private
*/
_initSubTree: function() {
var oSrcEl = this.srcElement,
oConfig = this.cfg,
oNode,
aOptions,
nOptions,
oMenu,
n;
if(oSrcEl.childNodes.length > 0) {
if(this.parent.lazyLoad && this.parent.srcElement &&
this.parent.srcElement.tagName.toUpperCase() == "SELECT") {
oConfig.setProperty(
"submenu",
{ id: Dom.generateId(), itemdata: oSrcEl.childNodes }
);
}
else {
oNode = oSrcEl.firstChild;
aOptions = [];
do {
if(oNode && oNode.tagName) {
switch(oNode.tagName.toUpperCase()) {
case "DIV":
oConfig.setProperty("submenu", oNode);
break;
case "OPTION":
aOptions[aOptions.length] = oNode;
break;
}
}
}
while((oNode = oNode.nextSibling));
nOptions = aOptions.length;
if(nOptions > 0) {
oMenu = new this.SUBMENU_TYPE(Dom.generateId());
oConfig.setProperty("submenu", oMenu);
for(n=0; n<nOptions; n++) {
oMenu.addItem((new oMenu.ITEM_TYPE(aOptions[n])));
}
}
}
}
},
// Event handlers for configuration properties
/**
* @method configText
* @description Event handler for when the "text" configuration property of
* the menu item changes.
* @param {String} p_sType String representing the name of the event that
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
* that fired the event.
*/
configText: function(p_sType, p_aArgs, p_oItem) {
var sText = p_aArgs[0],
oConfig = this.cfg,
oAnchor = this._oAnchor,
sHelpText = oConfig.getProperty("helptext"),
sHelpTextHTML = "",
sCheckHTML = "",
oSubmenu = oConfig.getProperty("submenu"),
sSubmenuIndicatorHTML = "",
sEmphasisStartTag = "",
sEmphasisEndTag = "";
if (sText) {
if (sHelpText) {
sHelpTextHTML = "<em class=\"helptext\">" + sHelpText + "</em>";
}
if (oConfig.getProperty("checked")) {
sCheckHTML = "<em class=\"checkedindicator\">" +
this.CHECKED_TEXT + "</em>";
}
if (oSubmenu) {
sSubmenuIndicatorHTML = "<em class=\"submenuindicator\">" +
((oSubmenu instanceof Menu &&
oSubmenu.cfg.getProperty("visible")) ?
this.EXPANDED_SUBMENU_INDICATOR_TEXT :
this.COLLAPSED_SUBMENU_INDICATOR_TEXT) + "</em>";
}
if (oConfig.getProperty("emphasis")) {
sEmphasisStartTag = "<em>";
sEmphasisEndTag = "</em>";
}
if (oConfig.getProperty("strongemphasis")) {
sEmphasisStartTag = "<strong>";
sEmphasisEndTag = "</strong>";
}
oAnchor.innerHTML = (sEmphasisStartTag + sText +
sEmphasisEndTag + sHelpTextHTML +
sCheckHTML + sSubmenuIndicatorHTML);
if (oSubmenu) {
this.submenuIndicator = oAnchor.lastChild;
}
}
},
/**
* @method configHelpText
* @description Event handler for when the "helptext" configuration property
* of the menu item changes.
* @param {String} p_sType String representing the name of the event that
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
* that fired the event.
*/
configHelpText: function(p_sType, p_aArgs, p_oItem) {
var sHelpText = p_aArgs[0],
oAnchor = this._oAnchor;
if (sHelpText) {
Dom.addClass(oAnchor, "hashelptext");
}
else {
Dom.removeClass(oAnchor, "hashelptext");
}
this.cfg.refireEvent("text");
},
/**
* @method configURL
* @description Event handler for when the "url" configuration property of
* the menu item changes.
* @param {String} p_sType String representing the name of the event that
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
* that fired the event.
*/
configURL: function(p_sType, p_aArgs, p_oItem) {
var sURL = p_aArgs[0];
if(!sURL) {
sURL = "#";
}
this._oAnchor.setAttribute("href", sURL);
},
/**
* @method configTarget
* @description Event handler for when the "target" configuration property
* of the menu item changes.
* @param {String} p_sType String representing the name of the event that
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
* that fired the event.
*/
configTarget: function(p_sType, p_aArgs, p_oItem) {
var sTarget = p_aArgs[0],
oAnchor = this._oAnchor;
if(sTarget && sTarget.length > 0) {
oAnchor.setAttribute("target", sTarget);
}
else {
oAnchor.removeAttribute("target");
}
},
/**
* @method configEmphasis
* @description Event handler for when the "emphasis" configuration property
* of the menu item changes.
* @param {String} p_sType String representing the name of the event that
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
* that fired the event.
*/
configEmphasis: function(p_sType, p_aArgs, p_oItem) {
var bEmphasis = p_aArgs[0],
oConfig = this.cfg;
if(bEmphasis && oConfig.getProperty("strongemphasis")) {
oConfig.setProperty("strongemphasis", false);
}
oConfig.refireEvent("text");
},
/**
* @method configStrongEmphasis
* @description Event handler for when the "strongemphasis" configuration
* property of the menu item changes.
* @param {String} p_sType String representing the name of the event that
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
* that fired the event.
*/
configStrongEmphasis: function(p_sType, p_aArgs, p_oItem) {
var bStrongEmphasis = p_aArgs[0],
oConfig = this.cfg;
if(bStrongEmphasis && oConfig.getProperty("emphasis")) {
oConfig.setProperty("emphasis", false);
}
oConfig.refireEvent("text");
},
/**
* @method configChecked
* @description Event handler for when the "checked" configuration property
* of the menu item changes.
* @param {String} p_sType String representing the name of the event that
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
* that fired the event.
*/
configChecked: function(p_sType, p_aArgs, p_oItem) {
var bChecked = p_aArgs[0],
oAnchor = this._oAnchor;
if (bChecked) {
Dom.addClass(oAnchor, "checked");
}
else {
Dom.removeClass(oAnchor, "checked");
}
this.cfg.refireEvent("text");
},
/**
* @method configDisabled
* @description Event handler for when the "disabled" configuration property
* of the menu item changes.
* @param {String} p_sType String representing the name of the event that
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
* that fired the event.
*/
configDisabled: function(p_sType, p_aArgs, p_oItem) {
var bDisabled = p_aArgs[0],
oConfig = this.cfg,
oAnchor = this._oAnchor;
if(bDisabled) {
if(oConfig.getProperty("selected")) {
oConfig.setProperty("selected", false);
}
oAnchor.removeAttribute("href");
Dom.addClass(oAnchor, "disabled");
}
else {
oAnchor.setAttribute("href", oConfig.getProperty("url"));
Dom.removeClass(oAnchor, "disabled");
}
},
/**
* @method configSelected
* @description Event handler for when the "selected" configuration property
* of the menu item changes.
* @param {String} p_sType String representing the name of the event that
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
* that fired the event.
*/
configSelected: function(p_sType, p_aArgs, p_oItem) {
var bSelected,
oAnchor;
if(!this.cfg.getProperty("disabled")) {
bSelected = p_aArgs[0];
oAnchor = this._oAnchor;
if(bSelected) {
Dom.addClass(oAnchor, "selected");
}
else {
Dom.removeClass(oAnchor, "selected");
}
}
},
/**
* @method configSubmenu
* @description Event handler for when the "submenu" configuration property
* of the menu item changes.
* @param {String} p_sType String representing the name of the event that
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
* that fired the event.
*/
configSubmenu: function(p_sType, p_aArgs, p_oItem) {
var oAnchor = this._oAnchor,
oSubmenu = p_aArgs[0],
oSubmenuIndicator = this.submenuIndicator,
oConfig = this.cfg,
bLazyLoad = this.parent && this.parent.lazyLoad,
oMenu,
sSubmenuId,
oSubmenuConfig;
if(oSubmenu) {
if(oSubmenu instanceof Menu) {
oMenu = oSubmenu;
oMenu.parent = this;
oMenu.lazyLoad = bLazyLoad;
}
else if(typeof oSubmenu == "object" && oSubmenu.id &&
!oSubmenu.nodeType) {
sSubmenuId = oSubmenu.id;
oSubmenuConfig = oSubmenu;
oSubmenuConfig.lazyload = bLazyLoad;
oSubmenuConfig.parent = this;
oMenu = new this.SUBMENU_TYPE(sSubmenuId, oSubmenuConfig);
// Set the value of the property to the Menu instance
this.cfg.setProperty("submenu", oMenu, true);
}
else {
oMenu = new this.SUBMENU_TYPE(oSubmenu,
{ lazyload: bLazyLoad, parent: this });
// Set the value of the property to the Menu instance
this.cfg.setProperty("submenu", oMenu, true);
}
if(oMenu) {
Dom.addClass(oAnchor, "hassubmenu");
this._oSubmenu = oMenu;
}
}
else {
Dom.removeClass(oAnchor, "hassubmenu");
if(oSubmenuIndicator) {
oAnchor.removeChild(oSubmenuIndicator);
}
if(this._oSubmenu) {
this._oSubmenu.destroy();
}
}
oConfig.refireEvent("text");
},
/**
* @method configOnClick
* @description Event handler for when the "onclick" configuration property
* of the menu item changes.
* @param {String} p_sType String representing the name of the event that
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
* that fired the event.
*/
configOnClick: function(p_sType, p_aArgs, p_oItem) {
var oObject = p_aArgs[0];
/*
Remove any existing listeners if a "click" event handler has
already been specified.
*/
if(this._oOnclickAttributeValue &&
(this._oOnclickAttributeValue != oObject)) {
this.clickEvent.unsubscribe(this._oOnclickAttributeValue.fn,
this._oOnclickAttributeValue.obj);
this._oOnclickAttributeValue = null;
}
if(!this._oOnclickAttributeValue && typeof oObject == "object" &&
typeof oObject.fn == "function") {
this.clickEvent.subscribe(oObject.fn,
((!YAHOO.lang.isUndefined(oObject.obj)) ? oObject.obj : this),
oObject.scope);
this._oOnclickAttributeValue = oObject;
}
},
/**
* @method configClassName
* @description Event handler for when the "classname" configuration
* property of a menu item changes.
* @param {String} p_sType String representing the name of the event that
* was fired.
* @param {Array} p_aArgs Array of arguments sent when the event was fired.
* @param {YAHOO.widget.MenuItem} p_oItem Object representing the menu item
* that fired the event.
*/
configClassName: function(p_sType, p_aArgs, p_oItem) {
var sClassName = p_aArgs[0];
if(this._sClassName) {
Dom.removeClass(this.element, this._sClassName);
}
Dom.addClass(this.element, sClassName);
this._sClassName = sClassName;
},
// Public methods
/**
* @method initDefaultConfig
* @description Initializes an item's configurable properties.
*/
initDefaultConfig : function() {
var oConfig = this.cfg;
// Define the configuration attributes
/**
* @config text
* @description String specifying the text label for the menu item.
* When building a menu from existing HTML the value of this property
* will be interpreted from the menu's markup.
* @default ""
* @type String
*/
oConfig.addProperty(
DEFAULT_CONFIG.TEXT.key,
{
handler: this.configText,
value: DEFAULT_CONFIG.TEXT.value,
validator: DEFAULT_CONFIG.TEXT.validator,
suppressEvent: DEFAULT_CONFIG.TEXT.suppressEvent
}
);
/**
* @config helptext
* @description String specifying additional instructional text to
* accompany the text for the menu item.
* @deprecated Use "text" configuration property to add help text markup.
* For example: <code>oMenuItem.cfg.setProperty("text", "Copy <em
* class=\"helptext\">Ctrl + C</em<");</code>
* @default null
* @type String|<a href="http://www.w3.org/TR/
* 2000/WD-DOM-Level-1-20000929/level-one-html.html#ID-58190037">
* HTMLElement</a>
*/
oConfig.addProperty(
DEFAULT_CONFIG.HELP_TEXT.key,
{ handler: this.configHelpText }
);
/**
* @config url
* @description String specifying the URL for the menu item's anchor's
* "href" attribute. When building a menu from existing HTML the value
* of this property will be interpreted from the menu's markup.
* @default "#"
* @type String
*/
oConfig.addProperty(
DEFAULT_CONFIG.URL.key,
{
handler: this.configURL,
value: DEFAULT_CONFIG.URL.value,
suppressEvent: DEFAULT_CONFIG.URL.suppressEvent
}
);
/**
* @config target
* @description String specifying the value for the "target" attribute
* of the menu item's anchor element. <strong>Specifying a target will
* require the user to click directly on the menu item's anchor node in
* order to cause the browser to navigate to the specified URL.</strong>
* When building a menu from existing HTML the value of this property
* will be interpreted from the menu's markup.
* @default null
* @type String
*/
oConfig.addProperty(
DEFAULT_CONFIG.TARGET.key,
{
handler: this.configTarget,
suppressEvent: DEFAULT_CONFIG.TARGET.suppressEvent
}
);
/**
* @config emphasis
* @description Boolean indicating if the text of the menu item will be
* rendered with emphasis.
* @deprecated Use "text" configuration property to add emphasis.
* For example: <code>oMenuItem.cfg.setProperty("text", "<em>Some
* Text</em<");</code>
* @default false
* @type Boolean
*/
oConfig.addProperty(
DEFAULT_CONFIG.EMPHASIS.key,
{
handler: this.configEmphasis,
value: DEFAULT_CONFIG.EMPHASIS.value,
validator: DEFAULT_CONFIG.EMPHASIS.validator,
suppressEvent: DEFAULT_CONFIG.EMPHASIS.suppressEvent
}
);
/**
* @config strongemphasis
* @description Boolean indicating if the text of the menu item will be
* rendered with strong emphasis.
* @deprecated Use "text" configuration property to add strong emphasis.
* For example: <code>oMenuItem.cfg.setProperty("text", "<strong>
* Some Text</strong<");</code>
* @default false
* @type Boolean
*/
oConfig.addProperty(
DEFAULT_CONFIG.STRONG_EMPHASIS.key,
{
handler: this.configStrongEmphasis,
value: DEFAULT_CONFIG.STRONG_EMPHASIS.value,
validator: DEFAULT_CONFIG.STRONG_EMPHASIS.validator,
suppressEvent: DEFAULT_CONFIG.STRONG_EMPHASIS.suppressEvent
}
);
/**
* @config checked
* @description Boolean indicating if the menu item should be rendered
* with a checkmark.
* @default false
* @type Boolean
*/
oConfig.addProperty(
DEFAULT_CONFIG.CHECKED.key,
{
handler: this.configChecked,
value: DEFAULT_CONFIG.CHECKED.value,
validator: DEFAULT_CONFIG.CHECKED.validator,
suppressEvent: DEFAULT_CONFIG.CHECKED.suppressEvent,
supercedes: DEFAULT_CONFIG.CHECKED.supercedes
}
);
/**
* @config disabled
* @description Boolean indicating if the menu item should be disabled.
* (Disabled menu items are dimmed and will not respond to user input
* or fire events.)
* @default false
* @type Boolean
*/
oConfig.addProperty(
DEFAULT_CONFIG.DISABLED.key,
{
handler: this.configDisabled,
value: DEFAULT_CONFIG.DISABLED.value,
validator: DEFAULT_CONFIG.DISABLED.validator,
suppressEvent: DEFAULT_CONFIG.DISABLED.suppressEvent
}
);
/**
* @config selected
* @description Boolean indicating if the menu item should
* be highlighted.
* @default false
* @type Boolean
*/
oConfig.addProperty(
DEFAULT_CONFIG.SELECTED.key,
{
handler: this.configSelected,
value: DEFAULT_CONFIG.SELECTED.value,
validator: DEFAULT_CONFIG.SELECTED.validator,
suppressEvent: DEFAULT_CONFIG.SELECTED.suppressEvent
}
);
/**
* @config submenu
* @description Object specifying the submenu to be appended to the
* menu item. The value can be one of the following: <ul><li>Object
* specifying a Menu instance.</li><li>Object literal specifying the
* menu to be created. Format: <code>{ id: [menu id], itemdata:
* [<a href="YAHOO.widget.Menu.html#itemData">array of values for
* items</a>] }</code>.</li><li>String specifying the id attribute
* of the <code><div></code> element of the menu.</li><li>
* Object specifying the <code><div></code> element of the
* menu.</li></ul>
* @default null
* @type Menu|String|Object|<a href="http://www.w3.org/TR/2000/
* WD-DOM-Level-1-20000929/level-one-html.html#ID-58190037">
* HTMLElement</a>
*/
oConfig.addProperty(
DEFAULT_CONFIG.SUBMENU.key,
{ handler: this.configSubmenu }
);
/**
* @config onclick
* @description Object literal representing the code to be executed when
* the item is clicked. Format:<br> <code> {<br>
* <strong>fn:</strong> Function, // The handler to call when
* the event fires.<br> <strong>obj:</strong> Object, // An
* object to pass back to the handler.<br> <strong>scope:</strong>
* Object // The object to use for the scope of the handler.
* <br> } </code>
* @type Object
* @default null
*/
oConfig.addProperty(
DEFAULT_CONFIG.ONCLICK.key,
{ handler: this.configOnClick }
);
/**
* @config classname
* @description CSS class to be applied to the menu item's root
* <code><li></code> element. The specified class(es) are
* appended in addition to the default class as specified by the menu
* item's CSS_CLASS_NAME constant.
* @default null
* @type String
*/
oConfig.addProperty(
DEFAULT_CONFIG.CLASS_NAME.key,
{
handler: this.configClassName,
value: DEFAULT_CONFIG.CLASS_NAME.value,
validator: DEFAULT_CONFIG.CLASS_NAME.validator
}
);
},
/**
* @method getNextEnabledSibling
* @description Finds the menu item's next enabled sibling.
* @return YAHOO.widget.MenuItem
*/
getNextEnabledSibling: function() {
var nGroupIndex,
aItemGroups,
oNextItem,
nNextGroupIndex,
aNextGroup;
function getNextArrayItem(p_aArray, p_nStartIndex) {
return p_aArray[p_nStartIndex] ||
getNextArrayItem(p_aArray, (p_nStartIndex+1));
}
if(this.parent instanceof Menu) {
nGroupIndex = this.groupIndex;
aItemGroups = this.parent.getItemGroups();
if(this.index < (aItemGroups[nGroupIndex].length - 1)) {
oNextItem = getNextArrayItem(aItemGroups[nGroupIndex],
(this.index+1));
}
else {
if(nGroupIndex < (aItemGroups.length - 1)) {
nNextGroupIndex = nGroupIndex + 1;
}
else {
nNextGroupIndex = 0;
}
aNextGroup = getNextArrayItem(aItemGroups, nNextGroupIndex);
// Retrieve the first menu item in the next group
oNextItem = getNextArrayItem(aNextGroup, 0);
}
return (oNextItem.cfg.getProperty("disabled") ||
oNextItem.element.style.display == "none") ?
oNextItem.getNextEnabledSibling() : oNextItem;
}
},
/**
* @method getPreviousEnabledSibling
* @description Finds the menu item's previous enabled sibling.
* @return {YAHOO.widget.MenuItem}
*/
getPreviousEnabledSibling: function() {
var nGroupIndex,
aItemGroups,
oPreviousItem,
nPreviousGroupIndex,
aPreviousGroup;
function getPreviousArrayItem(p_aArray, p_nStartIndex) {
return p_aArray[p_nStartIndex] ||
getPreviousArrayItem(p_aArray, (p_nStartIndex-1));
}
function getFirstItemIndex(p_aArray, p_nStartIndex) {
return p_aArray[p_nStartIndex] ? p_nStartIndex :
getFirstItemIndex(p_aArray, (p_nStartIndex+1));
}
if(this.parent instanceof Menu) {
nGroupIndex = this.groupIndex;
aItemGroups = this.parent.getItemGroups();
if(this.index > getFirstItemIndex(aItemGroups[nGroupIndex], 0)) {
oPreviousItem = getPreviousArrayItem(aItemGroups[nGroupIndex],
(this.index-1));
}
else {
if(nGroupIndex > getFirstItemIndex(aItemGroups, 0)) {
nPreviousGroupIndex = nGroupIndex - 1;
}
else {
nPreviousGroupIndex = aItemGroups.length - 1;
}
aPreviousGroup = getPreviousArrayItem(aItemGroups,
nPreviousGroupIndex);
oPreviousItem = getPreviousArrayItem(aPreviousGroup,
(aPreviousGroup.length - 1));
}
return (oPreviousItem.cfg.getProperty("disabled") ||
oPreviousItem.element.style.display == "none") ?
oPreviousItem.getPreviousEnabledSibling() : oPreviousItem;
}
},
/**
* @method focus
* @description Causes the menu item to receive the focus and fires the
* focus event.
*/
focus: function() {
var oParent = this.parent,
oAnchor = this._oAnchor,
oActiveItem = oParent.activeItem,
me = this;
function setFocus() {
try {
if (YAHOO.env.ua.ie && !document.hasFocus()) {
return;
}
oAnchor.focus();
}
catch(e) {
}
}
if(!this.cfg.getProperty("disabled") && oParent &&
oParent.cfg.getProperty("visible") &&
this.element.style.display != "none") {
if(oActiveItem) {
oActiveItem.blur();
}
/*
Setting focus via a timer fixes a race condition in Firefox, IE
and Opera where the browser viewport jumps as it trys to
position and focus the menu.
*/
window.setTimeout(setFocus, 0);
this.focusEvent.fire();
}
},
/**
* @method blur
* @description Causes the menu item to lose focus and fires the
* blur event.
*/
blur: function() {
var oParent = this.parent;
if(!this.cfg.getProperty("disabled") && oParent &&
oParent.cfg.getProperty("visible")) {
this._oAnchor.blur();
this.blurEvent.fire();
}
},
/**
* @method hasFocus
* @description Returns a boolean indicating whether or not the menu item
* has focus.
* @return {Boolean}
*/
hasFocus: function() {
return (YAHOO.widget.MenuManager.getFocusedMenuItem() == this);
},
/**
* @method destroy
* @description Removes the menu item's <code><li></code> element
* from its parent <code><ul></code> element.
*/
destroy: function() {
var oEl = this.element,
oSubmenu,
oParentNode;
if(oEl) {
// If the item has a submenu, destroy it first
oSubmenu = this.cfg.getProperty("submenu");
if(oSubmenu) {
oSubmenu.destroy();
}
// Remove CustomEvent listeners
this.mouseOverEvent.unsubscribeAll();
this.mouseOutEvent.unsubscribeAll();
this.mouseDownEvent.unsubscribeAll();
this.mouseUpEvent.unsubscribeAll();
this.clickEvent.unsubscribeAll();
this.keyPressEvent.unsubscribeAll();
this.keyDownEvent.unsubscribeAll();
this.keyUpEvent.unsubscribeAll();
this.focusEvent.unsubscribeAll();
this.blurEvent.unsubscribeAll();
this.cfg.configChangedEvent.unsubscribeAll();
// Remove the element from the parent node
oParentNode = oEl.parentNode;
if(oParentNode) {
oParentNode.removeChild(oEl);
this.destroyEvent.fire();
}
this.destroyEvent.unsubscribeAll();
}
},
/**
* @method toString
* @description Returns a string representing the menu item.
* @return {String}
*/
toString: function() {
var sReturnVal = "MenuItem",
sId = this.id;
if(sId) {
sReturnVal += (" " + sId);
}
return sReturnVal;
}
};
Lang.augmentProto(MenuItem, YAHOO.util.EventProvider);
})();