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CommunityID/javascript/yui/container/container_core-debug.js

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/*
Copyright (c) 2009, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.7.0
*/
(function () {
/**
* Config is a utility used within an Object to allow the implementer to
* maintain a list of local configuration properties and listen for changes
* to those properties dynamically using CustomEvent. The initial values are
* also maintained so that the configuration can be reset at any given point
* to its initial state.
* @namespace YAHOO.util
* @class Config
* @constructor
* @param {Object} owner The owner Object to which this Config Object belongs
*/
YAHOO.util.Config = function (owner) {
if (owner) {
this.init(owner);
}
if (!owner) { YAHOO.log("No owner specified for Config object", "error", "Config"); }
};
var Lang = YAHOO.lang,
CustomEvent = YAHOO.util.CustomEvent,
Config = YAHOO.util.Config;
/**
* Constant representing the CustomEvent type for the config changed event.
* @property YAHOO.util.Config.CONFIG_CHANGED_EVENT
* @private
* @static
* @final
*/
Config.CONFIG_CHANGED_EVENT = "configChanged";
/**
* Constant representing the boolean type string
* @property YAHOO.util.Config.BOOLEAN_TYPE
* @private
* @static
* @final
*/
Config.BOOLEAN_TYPE = "boolean";
Config.prototype = {
/**
* Object reference to the owner of this Config Object
* @property owner
* @type Object
*/
owner: null,
/**
* Boolean flag that specifies whether a queue is currently
* being executed
* @property queueInProgress
* @type Boolean
*/
queueInProgress: false,
/**
* Maintains the local collection of configuration property objects and
* their specified values
* @property config
* @private
* @type Object
*/
config: null,
/**
* Maintains the local collection of configuration property objects as
* they were initially applied.
* This object is used when resetting a property.
* @property initialConfig
* @private
* @type Object
*/
initialConfig: null,
/**
* Maintains the local, normalized CustomEvent queue
* @property eventQueue
* @private
* @type Object
*/
eventQueue: null,
/**
* Custom Event, notifying subscribers when Config properties are set
* (setProperty is called without the silent flag
* @event configChangedEvent
*/
configChangedEvent: null,
/**
* Initializes the configuration Object and all of its local members.
* @method init
* @param {Object} owner The owner Object to which this Config
* Object belongs
*/
init: function (owner) {
this.owner = owner;
this.configChangedEvent =
this.createEvent(Config.CONFIG_CHANGED_EVENT);
this.configChangedEvent.signature = CustomEvent.LIST;
this.queueInProgress = false;
this.config = {};
this.initialConfig = {};
this.eventQueue = [];
},
/**
* Validates that the value passed in is a Boolean.
* @method checkBoolean
* @param {Object} val The value to validate
* @return {Boolean} true, if the value is valid
*/
checkBoolean: function (val) {
return (typeof val == Config.BOOLEAN_TYPE);
},
/**
* Validates that the value passed in is a number.
* @method checkNumber
* @param {Object} val The value to validate
* @return {Boolean} true, if the value is valid
*/
checkNumber: function (val) {
return (!isNaN(val));
},
/**
* Fires a configuration property event using the specified value.
* @method fireEvent
* @private
* @param {String} key The configuration property's name
* @param {value} Object The value of the correct type for the property
*/
fireEvent: function ( key, value ) {
YAHOO.log("Firing Config event: " + key + "=" + value, "info", "Config");
var property = this.config[key];
if (property && property.event) {
property.event.fire(value);
}
},
/**
* Adds a property to the Config Object's private config hash.
* @method addProperty
* @param {String} key The configuration property's name
* @param {Object} propertyObject The Object containing all of this
* property's arguments
*/
addProperty: function ( key, propertyObject ) {
key = key.toLowerCase();
YAHOO.log("Added property: " + key, "info", "Config");
this.config[key] = propertyObject;
propertyObject.event = this.createEvent(key, { scope: this.owner });
propertyObject.event.signature = CustomEvent.LIST;
propertyObject.key = key;
if (propertyObject.handler) {
propertyObject.event.subscribe(propertyObject.handler,
this.owner);
}
this.setProperty(key, propertyObject.value, true);
if (! propertyObject.suppressEvent) {
this.queueProperty(key, propertyObject.value);
}
},
/**
* Returns a key-value configuration map of the values currently set in
* the Config Object.
* @method getConfig
* @return {Object} The current config, represented in a key-value map
*/
getConfig: function () {
var cfg = {},
currCfg = this.config,
prop,
property;
for (prop in currCfg) {
if (Lang.hasOwnProperty(currCfg, prop)) {
property = currCfg[prop];
if (property && property.event) {
cfg[prop] = property.value;
}
}
}
return cfg;
},
/**
* Returns the value of specified property.
* @method getProperty
* @param {String} key The name of the property
* @return {Object} The value of the specified property
*/
getProperty: function (key) {
var property = this.config[key.toLowerCase()];
if (property && property.event) {
return property.value;
} else {
return undefined;
}
},
/**
* Resets the specified property's value to its initial value.
* @method resetProperty
* @param {String} key The name of the property
* @return {Boolean} True is the property was reset, false if not
*/
resetProperty: function (key) {
key = key.toLowerCase();
var property = this.config[key];
if (property && property.event) {
if (this.initialConfig[key] &&
!Lang.isUndefined(this.initialConfig[key])) {
this.setProperty(key, this.initialConfig[key]);
return true;
}
} else {
return false;
}
},
/**
* Sets the value of a property. If the silent property is passed as
* true, the property's event will not be fired.
* @method setProperty
* @param {String} key The name of the property
* @param {String} value The value to set the property to
* @param {Boolean} silent Whether the value should be set silently,
* without firing the property event.
* @return {Boolean} True, if the set was successful, false if it failed.
*/
setProperty: function (key, value, silent) {
var property;
key = key.toLowerCase();
YAHOO.log("setProperty: " + key + "=" + value, "info", "Config");
if (this.queueInProgress && ! silent) {
// Currently running through a queue...
this.queueProperty(key,value);
return true;
} else {
property = this.config[key];
if (property && property.event) {
if (property.validator && !property.validator(value)) {
return false;
} else {
property.value = value;
if (! silent) {
this.fireEvent(key, value);
this.configChangedEvent.fire([key, value]);
}
return true;
}
} else {
return false;
}
}
},
/**
* Sets the value of a property and queues its event to execute. If the
* event is already scheduled to execute, it is
* moved from its current position to the end of the queue.
* @method queueProperty
* @param {String} key The name of the property
* @param {String} value The value to set the property to
* @return {Boolean} true, if the set was successful, false if
* it failed.
*/
queueProperty: function (key, value) {
key = key.toLowerCase();
YAHOO.log("queueProperty: " + key + "=" + value, "info", "Config");
var property = this.config[key],
foundDuplicate = false,
iLen,
queueItem,
queueItemKey,
queueItemValue,
sLen,
supercedesCheck,
qLen,
queueItemCheck,
queueItemCheckKey,
queueItemCheckValue,
i,
s,
q;
if (property && property.event) {
if (!Lang.isUndefined(value) && property.validator &&
!property.validator(value)) { // validator
return false;
} else {
if (!Lang.isUndefined(value)) {
property.value = value;
} else {
value = property.value;
}
foundDuplicate = false;
iLen = this.eventQueue.length;
for (i = 0; i < iLen; i++) {
queueItem = this.eventQueue[i];
if (queueItem) {
queueItemKey = queueItem[0];
queueItemValue = queueItem[1];
if (queueItemKey == key) {
/*
found a dupe... push to end of queue, null
current item, and break
*/
this.eventQueue[i] = null;
this.eventQueue.push(
[key, (!Lang.isUndefined(value) ?
value : queueItemValue)]);
foundDuplicate = true;
break;
}
}
}
// this is a refire, or a new property in the queue
if (! foundDuplicate && !Lang.isUndefined(value)) {
this.eventQueue.push([key, value]);
}
}
if (property.supercedes) {
sLen = property.supercedes.length;
for (s = 0; s < sLen; s++) {
supercedesCheck = property.supercedes[s];
qLen = this.eventQueue.length;
for (q = 0; q < qLen; q++) {
queueItemCheck = this.eventQueue[q];
if (queueItemCheck) {
queueItemCheckKey = queueItemCheck[0];
queueItemCheckValue = queueItemCheck[1];
if (queueItemCheckKey ==
supercedesCheck.toLowerCase() ) {
this.eventQueue.push([queueItemCheckKey,
queueItemCheckValue]);
this.eventQueue[q] = null;
break;
}
}
}
}
}
YAHOO.log("Config event queue: " + this.outputEventQueue(), "info", "Config");
return true;
} else {
return false;
}
},
/**
* Fires the event for a property using the property's current value.
* @method refireEvent
* @param {String} key The name of the property
*/
refireEvent: function (key) {
key = key.toLowerCase();
var property = this.config[key];
if (property && property.event &&
!Lang.isUndefined(property.value)) {
if (this.queueInProgress) {
this.queueProperty(key);
} else {
this.fireEvent(key, property.value);
}
}
},
/**
* Applies a key-value Object literal to the configuration, replacing
* any existing values, and queueing the property events.
* Although the values will be set, fireQueue() must be called for their
* associated events to execute.
* @method applyConfig
* @param {Object} userConfig The configuration Object literal
* @param {Boolean} init When set to true, the initialConfig will
* be set to the userConfig passed in, so that calling a reset will
* reset the properties to the passed values.
*/
applyConfig: function (userConfig, init) {
var sKey,
oConfig;
if (init) {
oConfig = {};
for (sKey in userConfig) {
if (Lang.hasOwnProperty(userConfig, sKey)) {
oConfig[sKey.toLowerCase()] = userConfig[sKey];
}
}
this.initialConfig = oConfig;
}
for (sKey in userConfig) {
if (Lang.hasOwnProperty(userConfig, sKey)) {
this.queueProperty(sKey, userConfig[sKey]);
}
}
},
/**
* Refires the events for all configuration properties using their
* current values.
* @method refresh
*/
refresh: function () {
var prop;
for (prop in this.config) {
if (Lang.hasOwnProperty(this.config, prop)) {
this.refireEvent(prop);
}
}
},
/**
* Fires the normalized list of queued property change events
* @method fireQueue
*/
fireQueue: function () {
var i,
queueItem,
key,
value,
property;
this.queueInProgress = true;
for (i = 0;i < this.eventQueue.length; i++) {
queueItem = this.eventQueue[i];
if (queueItem) {
key = queueItem[0];
value = queueItem[1];
property = this.config[key];
property.value = value;
// Clear out queue entry, to avoid it being
// re-added to the queue by any queueProperty/supercedes
// calls which are invoked during fireEvent
this.eventQueue[i] = null;
this.fireEvent(key,value);
}
}
this.queueInProgress = false;
this.eventQueue = [];
},
/**
* Subscribes an external handler to the change event for any
* given property.
* @method subscribeToConfigEvent
* @param {String} key The property name
* @param {Function} handler The handler function to use subscribe to
* the property's event
* @param {Object} obj The Object to use for scoping the event handler
* (see CustomEvent documentation)
* @param {Boolean} override Optional. If true, will override "this"
* within the handler to map to the scope Object passed into the method.
* @return {Boolean} True, if the subscription was successful,
* otherwise false.
*/
subscribeToConfigEvent: function (key, handler, obj, override) {
var property = this.config[key.toLowerCase()];
if (property && property.event) {
if (!Config.alreadySubscribed(property.event, handler, obj)) {
property.event.subscribe(handler, obj, override);
}
return true;
} else {
return false;
}
},
/**
* Unsubscribes an external handler from the change event for any
* given property.
* @method unsubscribeFromConfigEvent
* @param {String} key The property name
* @param {Function} handler The handler function to use subscribe to
* the property's event
* @param {Object} obj The Object to use for scoping the event
* handler (see CustomEvent documentation)
* @return {Boolean} True, if the unsubscription was successful,
* otherwise false.
*/
unsubscribeFromConfigEvent: function (key, handler, obj) {
var property = this.config[key.toLowerCase()];
if (property && property.event) {
return property.event.unsubscribe(handler, obj);
} else {
return false;
}
},
/**
* Returns a string representation of the Config object
* @method toString
* @return {String} The Config object in string format.
*/
toString: function () {
var output = "Config";
if (this.owner) {
output += " [" + this.owner.toString() + "]";
}
return output;
},
/**
* Returns a string representation of the Config object's current
* CustomEvent queue
* @method outputEventQueue
* @return {String} The string list of CustomEvents currently queued
* for execution
*/
outputEventQueue: function () {
var output = "",
queueItem,
q,
nQueue = this.eventQueue.length;
for (q = 0; q < nQueue; q++) {
queueItem = this.eventQueue[q];
if (queueItem) {
output += queueItem[0] + "=" + queueItem[1] + ", ";
}
}
return output;
},
/**
* Sets all properties to null, unsubscribes all listeners from each
* property's change event and all listeners from the configChangedEvent.
* @method destroy
*/
destroy: function () {
var oConfig = this.config,
sProperty,
oProperty;
for (sProperty in oConfig) {
if (Lang.hasOwnProperty(oConfig, sProperty)) {
oProperty = oConfig[sProperty];
oProperty.event.unsubscribeAll();
oProperty.event = null;
}
}
this.configChangedEvent.unsubscribeAll();
this.configChangedEvent = null;
this.owner = null;
this.config = null;
this.initialConfig = null;
this.eventQueue = null;
}
};
/**
* Checks to determine if a particular function/Object pair are already
* subscribed to the specified CustomEvent
* @method YAHOO.util.Config.alreadySubscribed
* @static
* @param {YAHOO.util.CustomEvent} evt The CustomEvent for which to check
* the subscriptions
* @param {Function} fn The function to look for in the subscribers list
* @param {Object} obj The execution scope Object for the subscription
* @return {Boolean} true, if the function/Object pair is already subscribed
* to the CustomEvent passed in
*/
Config.alreadySubscribed = function (evt, fn, obj) {
var nSubscribers = evt.subscribers.length,
subsc,
i;
if (nSubscribers > 0) {
i = nSubscribers - 1;
do {
subsc = evt.subscribers[i];
if (subsc && subsc.obj == obj && subsc.fn == fn) {
return true;
}
}
while (i--);
}
return false;
};
YAHOO.lang.augmentProto(Config, YAHOO.util.EventProvider);
}());
(function () {
/**
* The Container family of components is designed to enable developers to
* create different kinds of content-containing modules on the web. Module
* and Overlay are the most basic containers, and they can be used directly
* or extended to build custom containers. Also part of the Container family
* are four UI controls that extend Module and Overlay: Tooltip, Panel,
* Dialog, and SimpleDialog.
* @module container
* @title Container
* @requires yahoo, dom, event
* @optional dragdrop, animation, button
*/
/**
* Module is a JavaScript representation of the Standard Module Format.
* Standard Module Format is a simple standard for markup containers where
* child nodes representing the header, body, and footer of the content are
* denoted using the CSS classes "hd", "bd", and "ft" respectively.
* Module is the base class for all other classes in the YUI
* Container package.
* @namespace YAHOO.widget
* @class Module
* @constructor
* @param {String} el The element ID representing the Module <em>OR</em>
* @param {HTMLElement} el The element representing the Module
* @param {Object} userConfig The configuration Object literal containing
* the configuration that should be set for this module. See configuration
* documentation for more details.
*/
YAHOO.widget.Module = function (el, userConfig) {
if (el) {
this.init(el, userConfig);
} else {
YAHOO.log("No element or element ID specified" +
" for Module instantiation", "error");
}
};
var Dom = YAHOO.util.Dom,
Config = YAHOO.util.Config,
Event = YAHOO.util.Event,
CustomEvent = YAHOO.util.CustomEvent,
Module = YAHOO.widget.Module,
UA = YAHOO.env.ua,
m_oModuleTemplate,
m_oHeaderTemplate,
m_oBodyTemplate,
m_oFooterTemplate,
/**
* Constant representing the name of the Module's events
* @property EVENT_TYPES
* @private
* @final
* @type Object
*/
EVENT_TYPES = {
"BEFORE_INIT": "beforeInit",
"INIT": "init",
"APPEND": "append",
"BEFORE_RENDER": "beforeRender",
"RENDER": "render",
"CHANGE_HEADER": "changeHeader",
"CHANGE_BODY": "changeBody",
"CHANGE_FOOTER": "changeFooter",
"CHANGE_CONTENT": "changeContent",
"DESTORY": "destroy",
"BEFORE_SHOW": "beforeShow",
"SHOW": "show",
"BEFORE_HIDE": "beforeHide",
"HIDE": "hide"
},
/**
* Constant representing the Module's configuration properties
* @property DEFAULT_CONFIG
* @private
* @final
* @type Object
*/
DEFAULT_CONFIG = {
"VISIBLE": {
key: "visible",
value: true,
validator: YAHOO.lang.isBoolean
},
"EFFECT": {
key: "effect",
suppressEvent: true,
supercedes: ["visible"]
},
"MONITOR_RESIZE": {
key: "monitorresize",
value: true
},
"APPEND_TO_DOCUMENT_BODY": {
key: "appendtodocumentbody",
value: false
}
};
/**
* Constant representing the prefix path to use for non-secure images
* @property YAHOO.widget.Module.IMG_ROOT
* @static
* @final
* @type String
*/
Module.IMG_ROOT = null;
/**
* Constant representing the prefix path to use for securely served images
* @property YAHOO.widget.Module.IMG_ROOT_SSL
* @static
* @final
* @type String
*/
Module.IMG_ROOT_SSL = null;
/**
* Constant for the default CSS class name that represents a Module
* @property YAHOO.widget.Module.CSS_MODULE
* @static
* @final
* @type String
*/
Module.CSS_MODULE = "yui-module";
/**
* Constant representing the module header
* @property YAHOO.widget.Module.CSS_HEADER
* @static
* @final
* @type String
*/
Module.CSS_HEADER = "hd";
/**
* Constant representing the module body
* @property YAHOO.widget.Module.CSS_BODY
* @static
* @final
* @type String
*/
Module.CSS_BODY = "bd";
/**
* Constant representing the module footer
* @property YAHOO.widget.Module.CSS_FOOTER
* @static
* @final
* @type String
*/
Module.CSS_FOOTER = "ft";
/**
* Constant representing the url for the "src" attribute of the iframe
* used to monitor changes to the browser's base font size
* @property YAHOO.widget.Module.RESIZE_MONITOR_SECURE_URL
* @static
* @final
* @type String
*/
Module.RESIZE_MONITOR_SECURE_URL = "javascript:false;";
/**
* Constant representing the buffer amount (in pixels) to use when positioning
* the text resize monitor offscreen. The resize monitor is positioned
* offscreen by an amount eqaul to its offsetHeight + the buffer value.
*
* @property YAHOO.widget.Module.RESIZE_MONITOR_BUFFER
* @static
* @type Number
*/
// Set to 1, to work around pixel offset in IE8, which increases when zoom is used
Module.RESIZE_MONITOR_BUFFER = 1;
/**
* Singleton CustomEvent fired when the font size is changed in the browser.
* Opera's "zoom" functionality currently does not support text
* size detection.
* @event YAHOO.widget.Module.textResizeEvent
*/
Module.textResizeEvent = new CustomEvent("textResize");
/**
* Helper utility method, which forces a document level
* redraw for Opera, which can help remove repaint
* irregularities after applying DOM changes.
*
* @method YAHOO.widget.Module.forceDocumentRedraw
* @static
*/
Module.forceDocumentRedraw = function() {
var docEl = document.documentElement;
if (docEl) {
docEl.className += " ";
docEl.className = YAHOO.lang.trim(docEl.className);
}
};
function createModuleTemplate() {
if (!m_oModuleTemplate) {
m_oModuleTemplate = document.createElement("div");
m_oModuleTemplate.innerHTML = ("<div class=\"" +
Module.CSS_HEADER + "\"></div>" + "<div class=\"" +
Module.CSS_BODY + "\"></div><div class=\"" +
Module.CSS_FOOTER + "\"></div>");
m_oHeaderTemplate = m_oModuleTemplate.firstChild;
m_oBodyTemplate = m_oHeaderTemplate.nextSibling;
m_oFooterTemplate = m_oBodyTemplate.nextSibling;
}
return m_oModuleTemplate;
}
function createHeader() {
if (!m_oHeaderTemplate) {
createModuleTemplate();
}
return (m_oHeaderTemplate.cloneNode(false));
}
function createBody() {
if (!m_oBodyTemplate) {
createModuleTemplate();
}
return (m_oBodyTemplate.cloneNode(false));
}
function createFooter() {
if (!m_oFooterTemplate) {
createModuleTemplate();
}
return (m_oFooterTemplate.cloneNode(false));
}
Module.prototype = {
/**
* The class's constructor function
* @property contructor
* @type Function
*/
constructor: Module,
/**
* The main module element that contains the header, body, and footer
* @property element
* @type HTMLElement
*/
element: null,
/**
* The header element, denoted with CSS class "hd"
* @property header
* @type HTMLElement
*/
header: null,
/**
* The body element, denoted with CSS class "bd"
* @property body
* @type HTMLElement
*/
body: null,
/**
* The footer element, denoted with CSS class "ft"
* @property footer
* @type HTMLElement
*/
footer: null,
/**
* The id of the element
* @property id
* @type String
*/
id: null,
/**
* A string representing the root path for all images created by
* a Module instance.
* @deprecated It is recommend that any images for a Module be applied
* via CSS using the "background-image" property.
* @property imageRoot
* @type String
*/
imageRoot: Module.IMG_ROOT,
/**
* Initializes the custom events for Module which are fired
* automatically at appropriate times by the Module class.
* @method initEvents
*/
initEvents: function () {
var SIGNATURE = CustomEvent.LIST;
/**
* CustomEvent fired prior to class initalization.
* @event beforeInitEvent
* @param {class} classRef class reference of the initializing
* class, such as this.beforeInitEvent.fire(Module)
*/
this.beforeInitEvent = this.createEvent(EVENT_TYPES.BEFORE_INIT);
this.beforeInitEvent.signature = SIGNATURE;
/**
* CustomEvent fired after class initalization.
* @event initEvent
* @param {class} classRef class reference of the initializing
* class, such as this.beforeInitEvent.fire(Module)
*/
this.initEvent = this.createEvent(EVENT_TYPES.INIT);
this.initEvent.signature = SIGNATURE;
/**
* CustomEvent fired when the Module is appended to the DOM
* @event appendEvent
*/
this.appendEvent = this.createEvent(EVENT_TYPES.APPEND);
this.appendEvent.signature = SIGNATURE;
/**
* CustomEvent fired before the Module is rendered
* @event beforeRenderEvent
*/
this.beforeRenderEvent = this.createEvent(EVENT_TYPES.BEFORE_RENDER);
this.beforeRenderEvent.signature = SIGNATURE;
/**
* CustomEvent fired after the Module is rendered
* @event renderEvent
*/
this.renderEvent = this.createEvent(EVENT_TYPES.RENDER);
this.renderEvent.signature = SIGNATURE;
/**
* CustomEvent fired when the header content of the Module
* is modified
* @event changeHeaderEvent
* @param {String/HTMLElement} content String/element representing
* the new header content
*/
this.changeHeaderEvent = this.createEvent(EVENT_TYPES.CHANGE_HEADER);
this.changeHeaderEvent.signature = SIGNATURE;
/**
* CustomEvent fired when the body content of the Module is modified
* @event changeBodyEvent
* @param {String/HTMLElement} content String/element representing
* the new body content
*/
this.changeBodyEvent = this.createEvent(EVENT_TYPES.CHANGE_BODY);
this.changeBodyEvent.signature = SIGNATURE;
/**
* CustomEvent fired when the footer content of the Module
* is modified
* @event changeFooterEvent
* @param {String/HTMLElement} content String/element representing
* the new footer content
*/
this.changeFooterEvent = this.createEvent(EVENT_TYPES.CHANGE_FOOTER);
this.changeFooterEvent.signature = SIGNATURE;
/**
* CustomEvent fired when the content of the Module is modified
* @event changeContentEvent
*/
this.changeContentEvent = this.createEvent(EVENT_TYPES.CHANGE_CONTENT);
this.changeContentEvent.signature = SIGNATURE;
/**
* CustomEvent fired when the Module is destroyed
* @event destroyEvent
*/
this.destroyEvent = this.createEvent(EVENT_TYPES.DESTORY);
this.destroyEvent.signature = SIGNATURE;
/**
* CustomEvent fired before the Module is shown
* @event beforeShowEvent
*/
this.beforeShowEvent = this.createEvent(EVENT_TYPES.BEFORE_SHOW);
this.beforeShowEvent.signature = SIGNATURE;
/**
* CustomEvent fired after the Module is shown
* @event showEvent
*/
this.showEvent = this.createEvent(EVENT_TYPES.SHOW);
this.showEvent.signature = SIGNATURE;
/**
* CustomEvent fired before the Module is hidden
* @event beforeHideEvent
*/
this.beforeHideEvent = this.createEvent(EVENT_TYPES.BEFORE_HIDE);
this.beforeHideEvent.signature = SIGNATURE;
/**
* CustomEvent fired after the Module is hidden
* @event hideEvent
*/
this.hideEvent = this.createEvent(EVENT_TYPES.HIDE);
this.hideEvent.signature = SIGNATURE;
},
/**
* String representing the current user-agent platform
* @property platform
* @type String
*/
platform: function () {
var ua = navigator.userAgent.toLowerCase();
if (ua.indexOf("windows") != -1 || ua.indexOf("win32") != -1) {
return "windows";
} else if (ua.indexOf("macintosh") != -1) {
return "mac";
} else {
return false;
}
}(),
/**
* String representing the user-agent of the browser
* @deprecated Use YAHOO.env.ua
* @property browser
* @type String
*/
browser: function () {
var ua = navigator.userAgent.toLowerCase();
/*
Check Opera first in case of spoof and check Safari before
Gecko since Safari's user agent string includes "like Gecko"
*/
if (ua.indexOf('opera') != -1) {
return 'opera';
} else if (ua.indexOf('msie 7') != -1) {
return 'ie7';
} else if (ua.indexOf('msie') != -1) {
return 'ie';
} else if (ua.indexOf('safari') != -1) {
return 'safari';
} else if (ua.indexOf('gecko') != -1) {
return 'gecko';
} else {
return false;
}
}(),
/**
* Boolean representing whether or not the current browsing context is
* secure (https)
* @property isSecure
* @type Boolean
*/
isSecure: function () {
if (window.location.href.toLowerCase().indexOf("https") === 0) {
return true;
} else {
return false;
}
}(),
/**
* Initializes the custom events for Module which are fired
* automatically at appropriate times by the Module class.
*/
initDefaultConfig: function () {
// Add properties //
/**
* Specifies whether the Module is visible on the page.
* @config visible
* @type Boolean
* @default true
*/
this.cfg.addProperty(DEFAULT_CONFIG.VISIBLE.key, {
handler: this.configVisible,
value: DEFAULT_CONFIG.VISIBLE.value,
validator: DEFAULT_CONFIG.VISIBLE.validator
});
/**
* <p>
* Object or array of objects representing the ContainerEffect
* classes that are active for animating the container.
* </p>
* <p>
* <strong>NOTE:</strong> Although this configuration
* property is introduced at the Module level, an out of the box
* implementation is not shipped for the Module class so setting
* the proroperty on the Module class has no effect. The Overlay
* class is the first class to provide out of the box ContainerEffect
* support.
* </p>
* @config effect
* @type Object
* @default null
*/
this.cfg.addProperty(DEFAULT_CONFIG.EFFECT.key, {
suppressEvent: DEFAULT_CONFIG.EFFECT.suppressEvent,
supercedes: DEFAULT_CONFIG.EFFECT.supercedes
});
/**
* Specifies whether to create a special proxy iframe to monitor
* for user font resizing in the document
* @config monitorresize
* @type Boolean
* @default true
*/
this.cfg.addProperty(DEFAULT_CONFIG.MONITOR_RESIZE.key, {
handler: this.configMonitorResize,
value: DEFAULT_CONFIG.MONITOR_RESIZE.value
});
/**
* Specifies if the module should be rendered as the first child
* of document.body or appended as the last child when render is called
* with document.body as the "appendToNode".
* <p>
* Appending to the body while the DOM is still being constructed can
* lead to Operation Aborted errors in IE hence this flag is set to
* false by default.
* </p>
*
* @config appendtodocumentbody
* @type Boolean
* @default false
*/
this.cfg.addProperty(DEFAULT_CONFIG.APPEND_TO_DOCUMENT_BODY.key, {
value: DEFAULT_CONFIG.APPEND_TO_DOCUMENT_BODY.value
});
},
/**
* The Module class's initialization method, which is executed for
* Module and all of its subclasses. 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.
* <p>
* If the element passed in does not have an id, one will be generated
* for it.
* </p>
* @method init
* @param {String} el The element ID representing the Module <em>OR</em>
* @param {HTMLElement} el The element representing the Module
* @param {Object} userConfig The configuration Object literal
* containing the configuration that should be set for this module.
* See configuration documentation for more details.
*/
init: function (el, userConfig) {
var elId, child;
this.initEvents();
this.beforeInitEvent.fire(Module);
/**
* The Module's Config object used for monitoring
* configuration properties.
* @property cfg
* @type YAHOO.util.Config
*/
this.cfg = new Config(this);
if (this.isSecure) {
this.imageRoot = Module.IMG_ROOT_SSL;
}
if (typeof el == "string") {
elId = el;
el = document.getElementById(el);
if (! el) {
el = (createModuleTemplate()).cloneNode(false);
el.id = elId;
}
}
this.id = Dom.generateId(el);
this.element = el;
child = this.element.firstChild;
if (child) {
var fndHd = false, fndBd = false, fndFt = false;
do {
// We're looking for elements
if (1 == child.nodeType) {
if (!fndHd && Dom.hasClass(child, Module.CSS_HEADER)) {
this.header = child;
fndHd = true;
} else if (!fndBd && Dom.hasClass(child, Module.CSS_BODY)) {
this.body = child;
fndBd = true;
} else if (!fndFt && Dom.hasClass(child, Module.CSS_FOOTER)){
this.footer = child;
fndFt = true;
}
}
} while ((child = child.nextSibling));
}
this.initDefaultConfig();
Dom.addClass(this.element, Module.CSS_MODULE);
if (userConfig) {
this.cfg.applyConfig(userConfig, true);
}
/*
Subscribe to the fireQueue() method of Config so that any
queued configuration changes are excecuted upon render of
the Module
*/
if (!Config.alreadySubscribed(this.renderEvent, this.cfg.fireQueue, this.cfg)) {
this.renderEvent.subscribe(this.cfg.fireQueue, this.cfg, true);
}
this.initEvent.fire(Module);
},
/**
* Initialize an empty IFRAME that is placed out of the visible area
* that can be used to detect text resize.
* @method initResizeMonitor
*/
initResizeMonitor: function () {
var isGeckoWin = (UA.gecko && this.platform == "windows");
if (isGeckoWin) {
// Help prevent spinning loading icon which
// started with FireFox 2.0.0.8/Win
var self = this;
setTimeout(function(){self._initResizeMonitor();}, 0);
} else {
this._initResizeMonitor();
}
},
/**
* Create and initialize the text resize monitoring iframe.
*
* @protected
* @method _initResizeMonitor
*/
_initResizeMonitor : function() {
var oDoc,
oIFrame,
sHTML;
function fireTextResize() {
Module.textResizeEvent.fire();
}
if (!UA.opera) {
oIFrame = Dom.get("_yuiResizeMonitor");
var supportsCWResize = this._supportsCWResize();
if (!oIFrame) {
oIFrame = document.createElement("iframe");
if (this.isSecure && Module.RESIZE_MONITOR_SECURE_URL && UA.ie) {
oIFrame.src = Module.RESIZE_MONITOR_SECURE_URL;
}
if (!supportsCWResize) {
// Can't monitor on contentWindow, so fire from inside iframe
sHTML = ["<html><head><script ",
"type=\"text/javascript\">",
"window.onresize=function(){window.parent.",
"YAHOO.widget.Module.textResizeEvent.",
"fire();};<",
"\/script></head>",
"<body></body></html>"].join('');
oIFrame.src = "data:text/html;charset=utf-8," + encodeURIComponent(sHTML);
}
oIFrame.id = "_yuiResizeMonitor";
oIFrame.title = "Text Resize Monitor";
/*
Need to set "position" property before inserting the
iframe into the document or Safari's status bar will
forever indicate the iframe is loading
(See SourceForge bug #1723064)
*/
oIFrame.style.position = "absolute";
oIFrame.style.visibility = "hidden";
var db = document.body,
fc = db.firstChild;
if (fc) {
db.insertBefore(oIFrame, fc);
} else {
db.appendChild(oIFrame);
}
oIFrame.style.width = "2em";
oIFrame.style.height = "2em";
oIFrame.style.top = (-1 * (oIFrame.offsetHeight + Module.RESIZE_MONITOR_BUFFER)) + "px";
oIFrame.style.left = "0";
oIFrame.style.borderWidth = "0";
oIFrame.style.visibility = "visible";
/*
Don't open/close the document for Gecko like we used to, since it
leads to duplicate cookies. (See SourceForge bug #1721755)
*/
if (UA.webkit) {
oDoc = oIFrame.contentWindow.document;
oDoc.open();
oDoc.close();
}
}
if (oIFrame && oIFrame.contentWindow) {
Module.textResizeEvent.subscribe(this.onDomResize, this, true);
if (!Module.textResizeInitialized) {
if (supportsCWResize) {
if (!Event.on(oIFrame.contentWindow, "resize", fireTextResize)) {
/*
This will fail in IE if document.domain has
changed, so we must change the listener to
use the oIFrame element instead
*/
Event.on(oIFrame, "resize", fireTextResize);
}
}
Module.textResizeInitialized = true;
}
this.resizeMonitor = oIFrame;
}
}
},
/**
* Text resize monitor helper method.
* Determines if the browser supports resize events on iframe content windows.
*
* @private
* @method _supportsCWResize
*/
_supportsCWResize : function() {
/*
Gecko 1.8.0 (FF1.5), 1.8.1.0-5 (FF2) won't fire resize on contentWindow.
Gecko 1.8.1.6+ (FF2.0.0.6+) and all other browsers will fire resize on contentWindow.
We don't want to start sniffing for patch versions, so fire textResize the same
way on all FF2 flavors
*/
var bSupported = true;
if (UA.gecko && UA.gecko <= 1.8) {
bSupported = false;
}
return bSupported;
},
/**
* Event handler fired when the resize monitor element is resized.
* @method onDomResize
* @param {DOMEvent} e The DOM resize event
* @param {Object} obj The scope object passed to the handler
*/
onDomResize: function (e, obj) {
var nTop = -1 * (this.resizeMonitor.offsetHeight + Module.RESIZE_MONITOR_BUFFER);
this.resizeMonitor.style.top = nTop + "px";
this.resizeMonitor.style.left = "0";
},
/**
* Sets the Module's header content to the string specified, or appends
* the passed element to the header. If no header is present, one will
* be automatically created. An empty string can be passed to the method
* to clear the contents of the header.
*
* @method setHeader
* @param {String} headerContent The string used to set the header.
* As a convenience, non HTMLElement objects can also be passed into
* the method, and will be treated as strings, with the header innerHTML
* set to their default toString implementations.
* <em>OR</em>
* @param {HTMLElement} headerContent The HTMLElement to append to
* <em>OR</em>
* @param {DocumentFragment} headerContent The document fragment
* containing elements which are to be added to the header
*/
setHeader: function (headerContent) {
var oHeader = this.header || (this.header = createHeader());
if (headerContent.nodeName) {
oHeader.innerHTML = "";
oHeader.appendChild(headerContent);
} else {
oHeader.innerHTML = headerContent;
}
this.changeHeaderEvent.fire(headerContent);
this.changeContentEvent.fire();
},
/**
* Appends the passed element to the header. If no header is present,
* one will be automatically created.
* @method appendToHeader
* @param {HTMLElement | DocumentFragment} element The element to
* append to the header. In the case of a document fragment, the
* children of the fragment will be appended to the header.
*/
appendToHeader: function (element) {
var oHeader = this.header || (this.header = createHeader());
oHeader.appendChild(element);
this.changeHeaderEvent.fire(element);
this.changeContentEvent.fire();
},
/**
* Sets the Module's body content to the HTML specified.
*
* If no body is present, one will be automatically created.
*
* An empty string can be passed to the method to clear the contents of the body.
* @method setBody
* @param {String} bodyContent The HTML used to set the body.
* As a convenience, non HTMLElement objects can also be passed into
* the method, and will be treated as strings, with the body innerHTML
* set to their default toString implementations.
* <em>OR</em>
* @param {HTMLElement} bodyContent The HTMLElement to add as the first and only
* child of the body element.
* <em>OR</em>
* @param {DocumentFragment} bodyContent The document fragment
* containing elements which are to be added to the body
*/
setBody: function (bodyContent) {
var oBody = this.body || (this.body = createBody());
if (bodyContent.nodeName) {
oBody.innerHTML = "";
oBody.appendChild(bodyContent);
} else {
oBody.innerHTML = bodyContent;
}
this.changeBodyEvent.fire(bodyContent);
this.changeContentEvent.fire();
},
/**
* Appends the passed element to the body. If no body is present, one
* will be automatically created.
* @method appendToBody
* @param {HTMLElement | DocumentFragment} element The element to
* append to the body. In the case of a document fragment, the
* children of the fragment will be appended to the body.
*
*/
appendToBody: function (element) {
var oBody = this.body || (this.body = createBody());
oBody.appendChild(element);
this.changeBodyEvent.fire(element);
this.changeContentEvent.fire();
},
/**
* Sets the Module's footer content to the HTML specified, or appends
* the passed element to the footer. If no footer is present, one will
* be automatically created. An empty string can be passed to the method
* to clear the contents of the footer.
* @method setFooter
* @param {String} footerContent The HTML used to set the footer
* As a convenience, non HTMLElement objects can also be passed into
* the method, and will be treated as strings, with the footer innerHTML
* set to their default toString implementations.
* <em>OR</em>
* @param {HTMLElement} footerContent The HTMLElement to append to
* the footer
* <em>OR</em>
* @param {DocumentFragment} footerContent The document fragment containing
* elements which are to be added to the footer
*/
setFooter: function (footerContent) {
var oFooter = this.footer || (this.footer = createFooter());
if (footerContent.nodeName) {
oFooter.innerHTML = "";
oFooter.appendChild(footerContent);
} else {
oFooter.innerHTML = footerContent;
}
this.changeFooterEvent.fire(footerContent);
this.changeContentEvent.fire();
},
/**
* Appends the passed element to the footer. If no footer is present,
* one will be automatically created.
* @method appendToFooter
* @param {HTMLElement | DocumentFragment} element The element to
* append to the footer. In the case of a document fragment, the
* children of the fragment will be appended to the footer
*/
appendToFooter: function (element) {
var oFooter = this.footer || (this.footer = createFooter());
oFooter.appendChild(element);
this.changeFooterEvent.fire(element);
this.changeContentEvent.fire();
},
/**
* Renders the Module by inserting the elements that are not already
* in the main Module into their correct places. Optionally appends
* the Module to the specified node prior to the render's execution.
* <p>
* For Modules without existing markup, the appendToNode argument
* is REQUIRED. If this argument is ommitted and the current element is
* not present in the document, the function will return false,
* indicating that the render was a failure.
* </p>
* <p>
* NOTE: As of 2.3.1, if the appendToNode is the document's body element
* then the module is rendered as the first child of the body element,
* and not appended to it, to avoid Operation Aborted errors in IE when
* rendering the module before window's load event is fired. You can
* use the appendtodocumentbody configuration property to change this
* to append to document.body if required.
* </p>
* @method render
* @param {String} appendToNode The element id to which the Module
* should be appended to prior to rendering <em>OR</em>
* @param {HTMLElement} appendToNode The element to which the Module
* should be appended to prior to rendering
* @param {HTMLElement} moduleElement OPTIONAL. The element that
* represents the actual Standard Module container.
* @return {Boolean} Success or failure of the render
*/
render: function (appendToNode, moduleElement) {
var me = this,
firstChild;
function appendTo(parentNode) {
if (typeof parentNode == "string") {
parentNode = document.getElementById(parentNode);
}
if (parentNode) {
me._addToParent(parentNode, me.element);
me.appendEvent.fire();
}
}
this.beforeRenderEvent.fire();
if (! moduleElement) {
moduleElement = this.element;
}
if (appendToNode) {
appendTo(appendToNode);
} else {
// No node was passed in. If the element is not already in the Dom, this fails
if (! Dom.inDocument(this.element)) {
YAHOO.log("Render failed. Must specify appendTo node if " + " Module isn't already in the DOM.", "error");
return false;
}
}
// Need to get everything into the DOM if it isn't already
if (this.header && ! Dom.inDocument(this.header)) {
// There is a header, but it's not in the DOM yet. Need to add it.
firstChild = moduleElement.firstChild;
if (firstChild) {
moduleElement.insertBefore(this.header, firstChild);
} else {
moduleElement.appendChild(this.header);
}
}
if (this.body && ! Dom.inDocument(this.body)) {
// There is a body, but it's not in the DOM yet. Need to add it.
if (this.footer && Dom.isAncestor(this.moduleElement, this.footer)) {
moduleElement.insertBefore(this.body, this.footer);
} else {
moduleElement.appendChild(this.body);
}
}
if (this.footer && ! Dom.inDocument(this.footer)) {
// There is a footer, but it's not in the DOM yet. Need to add it.
moduleElement.appendChild(this.footer);
}
this.renderEvent.fire();
return true;
},
/**
* Removes the Module element from the DOM and sets all child elements
* to null.
* @method destroy
*/
destroy: function () {
var parent;
if (this.element) {
Event.purgeElement(this.element, true);
parent = this.element.parentNode;
}
if (parent) {
parent.removeChild(this.element);
}
this.element = null;
this.header = null;
this.body = null;
this.footer = null;
Module.textResizeEvent.unsubscribe(this.onDomResize, this);
this.cfg.destroy();
this.cfg = null;
this.destroyEvent.fire();
},
/**
* Shows the Module element by setting the visible configuration
* property to true. Also fires two events: beforeShowEvent prior to
* the visibility change, and showEvent after.
* @method show
*/
show: function () {
this.cfg.setProperty("visible", true);
},
/**
* Hides the Module element by setting the visible configuration
* property to false. Also fires two events: beforeHideEvent prior to
* the visibility change, and hideEvent after.
* @method hide
*/
hide: function () {
this.cfg.setProperty("visible", false);
},
// BUILT-IN EVENT HANDLERS FOR MODULE //
/**
* Default event handler for changing the visibility property of a
* Module. By default, this is achieved by switching the "display" style
* between "block" and "none".
* This method is responsible for firing showEvent and hideEvent.
* @param {String} type The CustomEvent type (usually the property name)
* @param {Object[]} args The CustomEvent arguments. For configuration
* handlers, args[0] will equal the newly applied value for the property.
* @param {Object} obj The scope object. For configuration handlers,
* this will usually equal the owner.
* @method configVisible
*/
configVisible: function (type, args, obj) {
var visible = args[0];
if (visible) {
this.beforeShowEvent.fire();
Dom.setStyle(this.element, "display", "block");
this.showEvent.fire();
} else {
this.beforeHideEvent.fire();
Dom.setStyle(this.element, "display", "none");
this.hideEvent.fire();
}
},
/**
* Default event handler for the "monitorresize" configuration property
* @param {String} type The CustomEvent type (usually the property name)
* @param {Object[]} args The CustomEvent arguments. For configuration
* handlers, args[0] will equal the newly applied value for the property.
* @param {Object} obj The scope object. For configuration handlers,
* this will usually equal the owner.
* @method configMonitorResize
*/
configMonitorResize: function (type, args, obj) {
var monitor = args[0];
if (monitor) {
this.initResizeMonitor();
} else {
Module.textResizeEvent.unsubscribe(this.onDomResize, this, true);
this.resizeMonitor = null;
}
},
/**
* This method is a protected helper, used when constructing the DOM structure for the module
* to account for situations which may cause Operation Aborted errors in IE. It should not
* be used for general DOM construction.
* <p>
* If the parentNode is not document.body, the element is appended as the last element.
* </p>
* <p>
* If the parentNode is document.body the element is added as the first child to help
* prevent Operation Aborted errors in IE.
* </p>
*
* @param {parentNode} The HTML element to which the element will be added
* @param {element} The HTML element to be added to parentNode's children
* @method _addToParent
* @protected
*/
_addToParent: function(parentNode, element) {
if (!this.cfg.getProperty("appendtodocumentbody") && parentNode === document.body && parentNode.firstChild) {
parentNode.insertBefore(element, parentNode.firstChild);
} else {
parentNode.appendChild(element);
}
},
/**
* Returns a String representation of the Object.
* @method toString
* @return {String} The string representation of the Module
*/
toString: function () {
return "Module " + this.id;
}
};
YAHOO.lang.augmentProto(Module, YAHOO.util.EventProvider);
}());
(function () {
/**
* Overlay is a Module that is absolutely positioned above the page flow. It
* has convenience methods for positioning and sizing, as well as options for
* controlling zIndex and constraining the Overlay's position to the current
* visible viewport. Overlay also contains a dynamicly generated IFRAME which
* is placed beneath it for Internet Explorer 6 and 5.x so that it will be
* properly rendered above SELECT elements.
* @namespace YAHOO.widget
* @class Overlay
* @extends YAHOO.widget.Module
* @param {String} el The element ID representing the Overlay <em>OR</em>
* @param {HTMLElement} el The element representing the Overlay
* @param {Object} userConfig The configuration object literal containing
* the configuration that should be set for this Overlay. See configuration
* documentation for more details.
* @constructor
*/
YAHOO.widget.Overlay = function (el, userConfig) {
YAHOO.widget.Overlay.superclass.constructor.call(this, el, userConfig);
};
var Lang = YAHOO.lang,
CustomEvent = YAHOO.util.CustomEvent,
Module = YAHOO.widget.Module,
Event = YAHOO.util.Event,
Dom = YAHOO.util.Dom,
Config = YAHOO.util.Config,
UA = YAHOO.env.ua,
Overlay = YAHOO.widget.Overlay,
_SUBSCRIBE = "subscribe",
_UNSUBSCRIBE = "unsubscribe",
_CONTAINED = "contained",
m_oIFrameTemplate,
/**
* Constant representing the name of the Overlay's events
* @property EVENT_TYPES
* @private
* @final
* @type Object
*/
EVENT_TYPES = {
"BEFORE_MOVE": "beforeMove",
"MOVE": "move"
},
/**
* Constant representing the Overlay's configuration properties
* @property DEFAULT_CONFIG
* @private
* @final
* @type Object
*/
DEFAULT_CONFIG = {
"X": {
key: "x",
validator: Lang.isNumber,
suppressEvent: true,
supercedes: ["iframe"]
},
"Y": {
key: "y",
validator: Lang.isNumber,
suppressEvent: true,
supercedes: ["iframe"]
},
"XY": {
key: "xy",
suppressEvent: true,
supercedes: ["iframe"]
},
"CONTEXT": {
key: "context",
suppressEvent: true,
supercedes: ["iframe"]
},
"FIXED_CENTER": {
key: "fixedcenter",
value: false,
supercedes: ["iframe", "visible"]
},
"WIDTH": {
key: "width",
suppressEvent: true,
supercedes: ["context", "fixedcenter", "iframe"]
},
"HEIGHT": {
key: "height",
suppressEvent: true,
supercedes: ["context", "fixedcenter", "iframe"]
},
"AUTO_FILL_HEIGHT" : {
key: "autofillheight",
supercedes: ["height"],
value:"body"
},
"ZINDEX": {
key: "zindex",
value: null
},
"CONSTRAIN_TO_VIEWPORT": {
key: "constraintoviewport",
value: false,
validator: Lang.isBoolean,
supercedes: ["iframe", "x", "y", "xy"]
},
"IFRAME": {
key: "iframe",
value: (UA.ie == 6 ? true : false),
validator: Lang.isBoolean,
supercedes: ["zindex"]
},
"PREVENT_CONTEXT_OVERLAP": {
key: "preventcontextoverlap",
value: false,
validator: Lang.isBoolean,
supercedes: ["constraintoviewport"]
}
};
/**
* The URL that will be placed in the iframe
* @property YAHOO.widget.Overlay.IFRAME_SRC
* @static
* @final
* @type String
*/
Overlay.IFRAME_SRC = "javascript:false;";
/**
* Number representing how much the iframe shim should be offset from each
* side of an Overlay instance, in pixels.
* @property YAHOO.widget.Overlay.IFRAME_SRC
* @default 3
* @static
* @final
* @type Number
*/
Overlay.IFRAME_OFFSET = 3;
/**
* Number representing the minimum distance an Overlay instance should be
* positioned relative to the boundaries of the browser's viewport, in pixels.
* @property YAHOO.widget.Overlay.VIEWPORT_OFFSET
* @default 10
* @static
* @final
* @type Number
*/
Overlay.VIEWPORT_OFFSET = 10;
/**
* Constant representing the top left corner of an element, used for
* configuring the context element alignment
* @property YAHOO.widget.Overlay.TOP_LEFT
* @static
* @final
* @type String
*/
Overlay.TOP_LEFT = "tl";
/**
* Constant representing the top right corner of an element, used for
* configuring the context element alignment
* @property YAHOO.widget.Overlay.TOP_RIGHT
* @static
* @final
* @type String
*/
Overlay.TOP_RIGHT = "tr";
/**
* Constant representing the top bottom left corner of an element, used for
* configuring the context element alignment
* @property YAHOO.widget.Overlay.BOTTOM_LEFT
* @static
* @final
* @type String
*/
Overlay.BOTTOM_LEFT = "bl";
/**
* Constant representing the bottom right corner of an element, used for
* configuring the context element alignment
* @property YAHOO.widget.Overlay.BOTTOM_RIGHT
* @static
* @final
* @type String
*/
Overlay.BOTTOM_RIGHT = "br";
/**
* Constant representing the default CSS class used for an Overlay
* @property YAHOO.widget.Overlay.CSS_OVERLAY
* @static
* @final
* @type String
*/
Overlay.CSS_OVERLAY = "yui-overlay";
/**
* Constant representing the names of the standard module elements
* used in the overlay.
* @property YAHOO.widget.Overlay.STD_MOD_RE
* @static
* @final
* @type RegExp
*/
Overlay.STD_MOD_RE = /^\s*?(body|footer|header)\s*?$/i;
/**
* A singleton CustomEvent used for reacting to the DOM event for
* window scroll
* @event YAHOO.widget.Overlay.windowScrollEvent
*/
Overlay.windowScrollEvent = new CustomEvent("windowScroll");
/**
* A singleton CustomEvent used for reacting to the DOM event for
* window resize
* @event YAHOO.widget.Overlay.windowResizeEvent
*/
Overlay.windowResizeEvent = new CustomEvent("windowResize");
/**
* The DOM event handler used to fire the CustomEvent for window scroll
* @method YAHOO.widget.Overlay.windowScrollHandler
* @static
* @param {DOMEvent} e The DOM scroll event
*/
Overlay.windowScrollHandler = function (e) {
var t = Event.getTarget(e);
// - Webkit (Safari 2/3) and Opera 9.2x bubble scroll events from elements to window
// - FF2/3 and IE6/7, Opera 9.5x don't bubble scroll events from elements to window
// - IE doesn't recognize scroll registered on the document.
//
// Also, when document view is scrolled, IE doesn't provide a target,
// rest of the browsers set target to window.document, apart from opera
// which sets target to window.
if (!t || t === window || t === window.document) {
if (UA.ie) {
if (! window.scrollEnd) {
window.scrollEnd = -1;
}
clearTimeout(window.scrollEnd);
window.scrollEnd = setTimeout(function () {
Overlay.windowScrollEvent.fire();
}, 1);
} else {
Overlay.windowScrollEvent.fire();
}
}
};
/**
* The DOM event handler used to fire the CustomEvent for window resize
* @method YAHOO.widget.Overlay.windowResizeHandler
* @static
* @param {DOMEvent} e The DOM resize event
*/
Overlay.windowResizeHandler = function (e) {
if (UA.ie) {
if (! window.resizeEnd) {
window.resizeEnd = -1;
}
clearTimeout(window.resizeEnd);
window.resizeEnd = setTimeout(function () {
Overlay.windowResizeEvent.fire();
}, 100);
} else {
Overlay.windowResizeEvent.fire();
}
};
/**
* A boolean that indicated whether the window resize and scroll events have
* already been subscribed to.
* @property YAHOO.widget.Overlay._initialized
* @private
* @type Boolean
*/
Overlay._initialized = null;
if (Overlay._initialized === null) {
Event.on(window, "scroll", Overlay.windowScrollHandler);
Event.on(window, "resize", Overlay.windowResizeHandler);
Overlay._initialized = true;
}
/**
* Internal map of special event types, which are provided
* by the instance. It maps the event type to the custom event
* instance. Contains entries for the "windowScroll", "windowResize" and
* "textResize" static container events.
*
* @property YAHOO.widget.Overlay._TRIGGER_MAP
* @type Object
* @static
* @private
*/
Overlay._TRIGGER_MAP = {
"windowScroll" : Overlay.windowScrollEvent,
"windowResize" : Overlay.windowResizeEvent,
"textResize" : Module.textResizeEvent
};
YAHOO.extend(Overlay, Module, {
/**
* <p>
* Array of default event types which will trigger
* context alignment for the Overlay class.
* </p>
* <p>The array is empty by default for Overlay,
* but maybe populated in future releases, so classes extending
* Overlay which need to define their own set of CONTEXT_TRIGGERS
* should concatenate their super class's prototype.CONTEXT_TRIGGERS
* value with their own array of values.
* </p>
* <p>
* E.g.:
* <code>CustomOverlay.prototype.CONTEXT_TRIGGERS = YAHOO.widget.Overlay.prototype.CONTEXT_TRIGGERS.concat(["windowScroll"]);</code>
* </p>
*
* @property CONTEXT_TRIGGERS
* @type Array
* @final
*/
CONTEXT_TRIGGERS : [],
/**
* The Overlay initialization method, which is executed for Overlay and
* all of its subclasses. 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.
* @method init
* @param {String} el The element ID representing the Overlay <em>OR</em>
* @param {HTMLElement} el The element representing the Overlay
* @param {Object} userConfig The configuration object literal
* containing the configuration that should be set for this Overlay.
* See configuration documentation for more details.
*/
init: function (el, userConfig) {
/*
Note that we don't pass the user config in here yet because we
only want it executed once, at the lowest subclass level
*/
Overlay.superclass.init.call(this, el/*, userConfig*/);
this.beforeInitEvent.fire(Overlay);
Dom.addClass(this.element, Overlay.CSS_OVERLAY);
if (userConfig) {
this.cfg.applyConfig(userConfig, true);
}
if (this.platform == "mac" && UA.gecko) {
if (! Config.alreadySubscribed(this.showEvent,
this.showMacGeckoScrollbars, this)) {
this.showEvent.subscribe(this.showMacGeckoScrollbars,
this, true);
}
if (! Config.alreadySubscribed(this.hideEvent,
this.hideMacGeckoScrollbars, this)) {
this.hideEvent.subscribe(this.hideMacGeckoScrollbars,
this, true);
}
}
this.initEvent.fire(Overlay);
},
/**
* Initializes the custom events for Overlay which are fired
* automatically at appropriate times by the Overlay class.
* @method initEvents
*/
initEvents: function () {
Overlay.superclass.initEvents.call(this);
var SIGNATURE = CustomEvent.LIST;
/**
* CustomEvent fired before the Overlay is moved.
* @event beforeMoveEvent
* @param {Number} x x coordinate
* @param {Number} y y coordinate
*/
this.beforeMoveEvent = this.createEvent(EVENT_TYPES.BEFORE_MOVE);
this.beforeMoveEvent.signature = SIGNATURE;
/**
* CustomEvent fired after the Overlay is moved.
* @event moveEvent
* @param {Number} x x coordinate
* @param {Number} y y coordinate
*/
this.moveEvent = this.createEvent(EVENT_TYPES.MOVE);
this.moveEvent.signature = SIGNATURE;
},
/**
* Initializes the class's configurable properties which can be changed
* using the Overlay's Config object (cfg).
* @method initDefaultConfig
*/
initDefaultConfig: function () {
Overlay.superclass.initDefaultConfig.call(this);
var cfg = this.cfg;
// Add overlay config properties //
/**
* The absolute x-coordinate position of the Overlay
* @config x
* @type Number
* @default null
*/
cfg.addProperty(DEFAULT_CONFIG.X.key, {
handler: this.configX,
validator: DEFAULT_CONFIG.X.validator,
suppressEvent: DEFAULT_CONFIG.X.suppressEvent,
supercedes: DEFAULT_CONFIG.X.supercedes
});
/**
* The absolute y-coordinate position of the Overlay
* @config y
* @type Number
* @default null
*/
cfg.addProperty(DEFAULT_CONFIG.Y.key, {
handler: this.configY,
validator: DEFAULT_CONFIG.Y.validator,
suppressEvent: DEFAULT_CONFIG.Y.suppressEvent,
supercedes: DEFAULT_CONFIG.Y.supercedes
});
/**
* An array with the absolute x and y positions of the Overlay
* @config xy
* @type Number[]
* @default null
*/
cfg.addProperty(DEFAULT_CONFIG.XY.key, {
handler: this.configXY,
suppressEvent: DEFAULT_CONFIG.XY.suppressEvent,
supercedes: DEFAULT_CONFIG.XY.supercedes
});
/**
* <p>
* The array of context arguments for context-sensitive positioning.
* </p>
*
* <p>
* The format of the array is: <code>[contextElementOrId, overlayCorner, contextCorner, arrayOfTriggerEvents (optional)]</code>, the
* the 4 array elements described in detail below:
* </p>
*
* <dl>
* <dt>contextElementOrId &#60;String|HTMLElement&#62;</dt>
* <dd>A reference to the context element to which the overlay should be aligned (or it's id).</dd>
* <dt>overlayCorner &#60;String&#62;</dt>
* <dd>The corner of the overlay which is to be used for alignment. This corner will be aligned to the
* corner of the context element defined by the "contextCorner" entry which follows. Supported string values are:
* "tr" (top right), "tl" (top left), "br" (bottom right), or "bl" (bottom left).</dd>
* <dt>contextCorner &#60;String&#62;</dt>
* <dd>The corner of the context element which is to be used for alignment. Supported string values are the same ones listed for the "overlayCorner" entry above.</dd>
* <dt>arrayOfTriggerEvents (optional) &#60;Array[String|CustomEvent]&#62;</dt>
* <dd>
* <p>
* By default, context alignment is a one time operation, aligning the Overlay to the context element when context configuration property is set, or when the <a href="#method_align">align</a>
* method is invoked. However, you can use the optional "arrayOfTriggerEvents" entry to define the list of events which should force the overlay to re-align itself with the context element.
* This is useful in situations where the layout of the document may change, resulting in the context element's position being modified.
* </p>
* <p>
* The array can contain either event type strings for events the instance publishes (e.g. "beforeShow") or CustomEvent instances. Additionally the following
* 3 static container event types are also currently supported : <code>"windowResize", "windowScroll", "textResize"</code> (defined in <a href="#property__TRIGGER_MAP">_TRIGGER_MAP</a> private property).
* </p>
* </dd>
* </dl>
*
* <p>
* For example, setting this property to <code>["img1", "tl", "bl"]</code> will
* align the Overlay's top left corner to the bottom left corner of the
* context element with id "img1".
* </p>
* <p>
* Adding the optional trigger values: <code>["img1", "tl", "bl", ["beforeShow", "windowResize"]]</code>,
* will re-align the overlay position, whenever the "beforeShow" or "windowResize" events are fired.
* </p>
*
* @config context
* @type Array
* @default null
*/
cfg.addProperty(DEFAULT_CONFIG.CONTEXT.key, {
handler: this.configContext,
suppressEvent: DEFAULT_CONFIG.CONTEXT.suppressEvent,
supercedes: DEFAULT_CONFIG.CONTEXT.supercedes
});
/**
* Determines whether or not the Overlay should be anchored
* to the center of the viewport.
*
* <p>This property can be set to:</p>
*
* <dl>
* <dt>true</dt>
* <dd>
* To enable fixed center positioning
* <p>
* When enabled, the overlay will
* be positioned in the center of viewport when initially displayed, and
* will remain in the center of the viewport whenever the window is
* scrolled or resized.
* </p>
* <p>
* If the overlay is too big for the viewport,
* it's top left corner will be aligned with the top left corner of the viewport.
* </p>
* </dd>
* <dt>false</dt>
* <dd>
* To disable fixed center positioning.
* <p>In this case the overlay can still be
* centered as a one-off operation, by invoking the <code>center()</code> method,
* however it will not remain centered when the window is scrolled/resized.
* </dd>
* <dt>"contained"<dt>
* <dd>To enable fixed center positioning, as with the <code>true</code> option.
* <p>However, unlike setting the property to <code>true</code>,
* when the property is set to <code>"contained"</code>, if the overlay is
* too big for the viewport, it will not get automatically centered when the
* user scrolls or resizes the window (until the window is large enough to contain the
* overlay). This is useful in cases where the Overlay has both header and footer
* UI controls which the user may need to access.
* </p>
* </dd>
* </dl>
*
* @config fixedcenter
* @type Boolean | String
* @default false
*/
cfg.addProperty(DEFAULT_CONFIG.FIXED_CENTER.key, {
handler: this.configFixedCenter,
value: DEFAULT_CONFIG.FIXED_CENTER.value,
validator: DEFAULT_CONFIG.FIXED_CENTER.validator,
supercedes: DEFAULT_CONFIG.FIXED_CENTER.supercedes
});
/**
* CSS width of the Overlay.
* @config width
* @type String
* @default null
*/
cfg.addProperty(DEFAULT_CONFIG.WIDTH.key, {
handler: this.configWidth,
suppressEvent: DEFAULT_CONFIG.WIDTH.suppressEvent,
supercedes: DEFAULT_CONFIG.WIDTH.supercedes
});
/**
* CSS height of the Overlay.
* @config height
* @type String
* @default null
*/
cfg.addProperty(DEFAULT_CONFIG.HEIGHT.key, {
handler: this.configHeight,
suppressEvent: DEFAULT_CONFIG.HEIGHT.suppressEvent,
supercedes: DEFAULT_CONFIG.HEIGHT.supercedes
});
/**
* Standard module element which should auto fill out the height of the Overlay if the height config property is set.
* Supported values are "header", "body", "footer".
*
* @config autofillheight
* @type String
* @default null
*/
cfg.addProperty(DEFAULT_CONFIG.AUTO_FILL_HEIGHT.key, {
handler: this.configAutoFillHeight,
value : DEFAULT_CONFIG.AUTO_FILL_HEIGHT.value,
validator : this._validateAutoFill,
supercedes: DEFAULT_CONFIG.AUTO_FILL_HEIGHT.supercedes
});
/**
* CSS z-index of the Overlay.
* @config zIndex
* @type Number
* @default null
*/
cfg.addProperty(DEFAULT_CONFIG.ZINDEX.key, {
handler: this.configzIndex,
value: DEFAULT_CONFIG.ZINDEX.value
});
/**
* True if the Overlay should be prevented from being positioned
* out of the viewport.
* @config constraintoviewport
* @type Boolean
* @default false
*/
cfg.addProperty(DEFAULT_CONFIG.CONSTRAIN_TO_VIEWPORT.key, {
handler: this.configConstrainToViewport,
value: DEFAULT_CONFIG.CONSTRAIN_TO_VIEWPORT.value,
validator: DEFAULT_CONFIG.CONSTRAIN_TO_VIEWPORT.validator,
supercedes: DEFAULT_CONFIG.CONSTRAIN_TO_VIEWPORT.supercedes
});
/**
* @config iframe
* @description Boolean indicating whether or not the Overlay should
* have an IFRAME shim; used to prevent SELECT elements from
* poking through an Overlay instance in IE6. When set to "true",
* the iframe shim is created when the Overlay instance is intially
* made visible.
* @type Boolean
* @default true for IE6 and below, false for all other browsers.
*/
cfg.addProperty(DEFAULT_CONFIG.IFRAME.key, {
handler: this.configIframe,
value: DEFAULT_CONFIG.IFRAME.value,
validator: DEFAULT_CONFIG.IFRAME.validator,
supercedes: DEFAULT_CONFIG.IFRAME.supercedes
});
/**
* @config preventcontextoverlap
* @description Boolean indicating whether or not the Overlay should overlap its
* context element (defined using the "context" configuration property) when the
* "constraintoviewport" configuration property is set to "true".
* @type Boolean
* @default false
*/
cfg.addProperty(DEFAULT_CONFIG.PREVENT_CONTEXT_OVERLAP.key, {
value: DEFAULT_CONFIG.PREVENT_CONTEXT_OVERLAP.value,
validator: DEFAULT_CONFIG.PREVENT_CONTEXT_OVERLAP.validator,
supercedes: DEFAULT_CONFIG.PREVENT_CONTEXT_OVERLAP.supercedes
});
},
/**
* Moves the Overlay to the specified position. This function is
* identical to calling this.cfg.setProperty("xy", [x,y]);
* @method moveTo
* @param {Number} x The Overlay's new x position
* @param {Number} y The Overlay's new y position
*/
moveTo: function (x, y) {
this.cfg.setProperty("xy", [x, y]);
},
/**
* Adds a CSS class ("hide-scrollbars") and removes a CSS class
* ("show-scrollbars") to the Overlay to fix a bug in Gecko on Mac OS X
* (https://bugzilla.mozilla.org/show_bug.cgi?id=187435)
* @method hideMacGeckoScrollbars
*/
hideMacGeckoScrollbars: function () {
Dom.replaceClass(this.element, "show-scrollbars", "hide-scrollbars");
},
/**
* Adds a CSS class ("show-scrollbars") and removes a CSS class
* ("hide-scrollbars") to the Overlay to fix a bug in Gecko on Mac OS X
* (https://bugzilla.mozilla.org/show_bug.cgi?id=187435)
* @method showMacGeckoScrollbars
*/
showMacGeckoScrollbars: function () {
Dom.replaceClass(this.element, "hide-scrollbars", "show-scrollbars");
},
/**
* Internal implementation to set the visibility of the overlay in the DOM.
*
* @method _setDomVisibility
* @param {boolean} visible Whether to show or hide the Overlay's outer element
* @protected
*/
_setDomVisibility : function(show) {
Dom.setStyle(this.element, "visibility", (show) ? "visible" : "hidden");
if (show) {
Dom.removeClass(this.element, "yui-overlay-hidden");
} else {
Dom.addClass(this.element, "yui-overlay-hidden");
}
},
// BEGIN BUILT-IN PROPERTY EVENT HANDLERS //
/**
* The default event handler fired when the "visible" property is
* changed. This method is responsible for firing showEvent
* and hideEvent.
* @method configVisible
* @param {String} type The CustomEvent type (usually the property name)
* @param {Object[]} args The CustomEvent arguments. For configuration
* handlers, args[0] will equal the newly applied value for the property.
* @param {Object} obj The scope object. For configuration handlers,
* this will usually equal the owner.
*/
configVisible: function (type, args, obj) {
var visible = args[0],
currentVis = Dom.getStyle(this.element, "visibility"),
effect = this.cfg.getProperty("effect"),
effectInstances = [],
isMacGecko = (this.platform == "mac" && UA.gecko),
alreadySubscribed = Config.alreadySubscribed,
eff, ei, e, i, j, k, h,
nEffects,
nEffectInstances;
if (currentVis == "inherit") {
e = this.element.parentNode;
while (e.nodeType != 9 && e.nodeType != 11) {
currentVis = Dom.getStyle(e, "visibility");
if (currentVis != "inherit") {
break;
}
e = e.parentNode;
}
if (currentVis == "inherit") {
currentVis = "visible";
}
}
if (effect) {
if (effect instanceof Array) {
nEffects = effect.length;
for (i = 0; i < nEffects; i++) {
eff = effect[i];
effectInstances[effectInstances.length] =
eff.effect(this, eff.duration);
}
} else {
effectInstances[effectInstances.length] =
effect.effect(this, effect.duration);
}
}
if (visible) { // Show
if (isMacGecko) {
this.showMacGeckoScrollbars();
}
if (effect) { // Animate in
if (visible) { // Animate in if not showing
if (currentVis != "visible" || currentVis === "") {
this.beforeShowEvent.fire();
nEffectInstances = effectInstances.length;
for (j = 0; j < nEffectInstances; j++) {
ei = effectInstances[j];
if (j === 0 && !alreadySubscribed(
ei.animateInCompleteEvent,
this.showEvent.fire, this.showEvent)) {
/*
Delegate showEvent until end
of animateInComplete
*/
ei.animateInCompleteEvent.subscribe(
this.showEvent.fire, this.showEvent, true);
}
ei.animateIn();
}
}
}
} else { // Show
if (currentVis != "visible" || currentVis === "") {
this.beforeShowEvent.fire();
this._setDomVisibility(true);
this.cfg.refireEvent("iframe");
this.showEvent.fire();
} else {
this._setDomVisibility(true);
}
}
} else { // Hide
if (isMacGecko) {
this.hideMacGeckoScrollbars();
}
if (effect) { // Animate out if showing
if (currentVis == "visible") {
this.beforeHideEvent.fire();
nEffectInstances = effectInstances.length;
for (k = 0; k < nEffectInstances; k++) {
h = effectInstances[k];
if (k === 0 && !alreadySubscribed(
h.animateOutCompleteEvent, this.hideEvent.fire,
this.hideEvent)) {
/*
Delegate hideEvent until end
of animateOutComplete
*/
h.animateOutCompleteEvent.subscribe(
this.hideEvent.fire, this.hideEvent, true);
}
h.animateOut();
}
} else if (currentVis === "") {
this._setDomVisibility(false);
}
} else { // Simple hide
if (currentVis == "visible" || currentVis === "") {
this.beforeHideEvent.fire();
this._setDomVisibility(false);
this.hideEvent.fire();
} else {
this._setDomVisibility(false);
}
}
}
},
/**
* Fixed center event handler used for centering on scroll/resize, but only if
* the overlay is visible and, if "fixedcenter" is set to "contained", only if
* the overlay fits within the viewport.
*
* @method doCenterOnDOMEvent
*/
doCenterOnDOMEvent: function () {
var cfg = this.cfg,
fc = cfg.getProperty("fixedcenter");
if (cfg.getProperty("visible")) {
if (fc && (fc !== _CONTAINED || this.fitsInViewport())) {
this.center();
}
}
},
/**
* Determines if the Overlay (including the offset value defined by Overlay.VIEWPORT_OFFSET)
* will fit entirely inside the viewport, in both dimensions - width and height.
*
* @method fitsInViewport
* @return boolean true if the Overlay will fit, false if not
*/
fitsInViewport : function() {
var nViewportOffset = Overlay.VIEWPORT_OFFSET,
element = this.element,
elementWidth = element.offsetWidth,
elementHeight = element.offsetHeight,
viewportWidth = Dom.getViewportWidth(),
viewportHeight = Dom.getViewportHeight();
return ((elementWidth + nViewportOffset < viewportWidth) && (elementHeight + nViewportOffset < viewportHeight));
},
/**
* The default event handler fired when the "fixedcenter" property
* is changed.
* @method configFixedCenter
* @param {String} type The CustomEvent type (usually the property name)
* @param {Object[]} args The CustomEvent arguments. For configuration
* handlers, args[0] will equal the newly applied value for the property.
* @param {Object} obj The scope object. For configuration handlers,
* this will usually equal the owner.
*/
configFixedCenter: function (type, args, obj) {
var val = args[0],
alreadySubscribed = Config.alreadySubscribed,
windowResizeEvent = Overlay.windowResizeEvent,
windowScrollEvent = Overlay.windowScrollEvent;
if (val) {
this.center();
if (!alreadySubscribed(this.beforeShowEvent, this.center)) {
this.beforeShowEvent.subscribe(this.center);
}
if (!alreadySubscribed(windowResizeEvent, this.doCenterOnDOMEvent, this)) {
windowResizeEvent.subscribe(this.doCenterOnDOMEvent, this, true);
}
if (!alreadySubscribed(windowScrollEvent, this.doCenterOnDOMEvent, this)) {
windowScrollEvent.subscribe(this.doCenterOnDOMEvent, this, true);
}
} else {
this.beforeShowEvent.unsubscribe(this.center);
windowResizeEvent.unsubscribe(this.doCenterOnDOMEvent, this);
windowScrollEvent.unsubscribe(this.doCenterOnDOMEvent, this);
}
},
/**
* The default event handler fired when the "height" property is changed.
* @method configHeight
* @param {String} type The CustomEvent type (usually the property name)
* @param {Object[]} args The CustomEvent arguments. For configuration
* handlers, args[0] will equal the newly applied value for the property.
* @param {Object} obj The scope object. For configuration handlers,
* this will usually equal the owner.
*/
configHeight: function (type, args, obj) {
var height = args[0],
el = this.element;
Dom.setStyle(el, "height", height);
this.cfg.refireEvent("iframe");
},
/**
* The default event handler fired when the "autofillheight" property is changed.
* @method configAutoFillHeight
*
* @param {String} type The CustomEvent type (usually the property name)
* @param {Object[]} args The CustomEvent arguments. For configuration
* handlers, args[0] will equal the newly applied value for the property.
* @param {Object} obj The scope object. For configuration handlers,
* this will usually equal the owner.
*/
configAutoFillHeight: function (type, args, obj) {
var fillEl = args[0],
cfg = this.cfg,
autoFillHeight = "autofillheight",
height = "height",
currEl = cfg.getProperty(autoFillHeight),
autoFill = this._autoFillOnHeightChange;
cfg.unsubscribeFromConfigEvent(height, autoFill);
Module.textResizeEvent.unsubscribe(autoFill);
this.changeContentEvent.unsubscribe(autoFill);
if (currEl && fillEl !== currEl && this[currEl]) {
Dom.setStyle(this[currEl], height, "");
}
if (fillEl) {
fillEl = Lang.trim(fillEl.toLowerCase());
cfg.subscribeToConfigEvent(height, autoFill, this[fillEl], this);
Module.textResizeEvent.subscribe(autoFill, this[fillEl], this);
this.changeContentEvent.subscribe(autoFill, this[fillEl], this);
cfg.setProperty(autoFillHeight, fillEl, true);
}
},
/**
* The default event handler fired when the "width" property is changed.
* @method configWidth
* @param {String} type The CustomEvent type (usually the property name)
* @param {Object[]} args The CustomEvent arguments. For configuration
* handlers, args[0] will equal the newly applied value for the property.
* @param {Object} obj The scope object. For configuration handlers,
* this will usually equal the owner.
*/
configWidth: function (type, args, obj) {
var width = args[0],
el = this.element;
Dom.setStyle(el, "width", width);
this.cfg.refireEvent("iframe");
},
/**
* The default event handler fired when the "zIndex" property is changed.
* @method configzIndex
* @param {String} type The CustomEvent type (usually the property name)
* @param {Object[]} args The CustomEvent arguments. For configuration
* handlers, args[0] will equal the newly applied value for the property.
* @param {Object} obj The scope object. For configuration handlers,
* this will usually equal the owner.
*/
configzIndex: function (type, args, obj) {
var zIndex = args[0],
el = this.element;
if (! zIndex) {
zIndex = Dom.getStyle(el, "zIndex");
if (! zIndex || isNaN(zIndex)) {
zIndex = 0;
}
}
if (this.iframe || this.cfg.getProperty("iframe") === true) {
if (zIndex <= 0) {
zIndex = 1;
}
}
Dom.setStyle(el, "zIndex", zIndex);
this.cfg.setProperty("zIndex", zIndex, true);
if (this.iframe) {
this.stackIframe();
}
},
/**
* The default event handler fired when the "xy" property is changed.
* @method configXY
* @param {String} type The CustomEvent type (usually the property name)
* @param {Object[]} args The CustomEvent arguments. For configuration
* handlers, args[0] will equal the newly applied value for the property.
* @param {Object} obj The scope object. For configuration handlers,
* this will usually equal the owner.
*/
configXY: function (type, args, obj) {
var pos = args[0],
x = pos[0],
y = pos[1];
this.cfg.setProperty("x", x);
this.cfg.setProperty("y", y);
this.beforeMoveEvent.fire([x, y]);
x = this.cfg.getProperty("x");
y = this.cfg.getProperty("y");
YAHOO.log(("xy: " + [x, y]), "iframe");
this.cfg.refireEvent("iframe");
this.moveEvent.fire([x, y]);
},
/**
* The default event handler fired when the "x" property is changed.
* @method configX
* @param {String} type The CustomEvent type (usually the property name)
* @param {Object[]} args The CustomEvent arguments. For configuration
* handlers, args[0] will equal the newly applied value for the property.
* @param {Object} obj The scope object. For configuration handlers,
* this will usually equal the owner.
*/
configX: function (type, args, obj) {
var x = args[0],
y = this.cfg.getProperty("y");
this.cfg.setProperty("x", x, true);
this.cfg.setProperty("y", y, true);
this.beforeMoveEvent.fire([x, y]);
x = this.cfg.getProperty("x");
y = this.cfg.getProperty("y");
Dom.setX(this.element, x, true);
this.cfg.setProperty("xy", [x, y], true);
this.cfg.refireEvent("iframe");
this.moveEvent.fire([x, y]);
},
/**
* The default event handler fired when the "y" property is changed.
* @method configY
* @param {String} type The CustomEvent type (usually the property name)
* @param {Object[]} args The CustomEvent arguments. For configuration
* handlers, args[0] will equal the newly applied value for the property.
* @param {Object} obj The scope object. For configuration handlers,
* this will usually equal the owner.
*/
configY: function (type, args, obj) {
var x = this.cfg.getProperty("x"),
y = args[0];
this.cfg.setProperty("x", x, true);
this.cfg.setProperty("y", y, true);
this.beforeMoveEvent.fire([x, y]);
x = this.cfg.getProperty("x");
y = this.cfg.getProperty("y");
Dom.setY(this.element, y, true);
this.cfg.setProperty("xy", [x, y], true);
this.cfg.refireEvent("iframe");
this.moveEvent.fire([x, y]);
},
/**
* Shows the iframe shim, if it has been enabled.
* @method showIframe
*/
showIframe: function () {
var oIFrame = this.iframe,
oParentNode;
if (oIFrame) {
oParentNode = this.element.parentNode;
if (oParentNode != oIFrame.parentNode) {
this._addToParent(oParentNode, oIFrame);
}
oIFrame.style.display = "block";
}
},
/**
* Hides the iframe shim, if it has been enabled.
* @method hideIframe
*/
hideIframe: function () {
if (this.iframe) {
this.iframe.style.display = "none";
}
},
/**
* Syncronizes the size and position of iframe shim to that of its
* corresponding Overlay instance.
* @method syncIframe
*/
syncIframe: function () {
var oIFrame = this.iframe,
oElement = this.element,
nOffset = Overlay.IFRAME_OFFSET,
nDimensionOffset = (nOffset * 2),
aXY;
if (oIFrame) {
// Size <iframe>
oIFrame.style.width = (oElement.offsetWidth + nDimensionOffset + "px");
oIFrame.style.height = (oElement.offsetHeight + nDimensionOffset + "px");
// Position <iframe>
aXY = this.cfg.getProperty("xy");
if (!Lang.isArray(aXY) || (isNaN(aXY[0]) || isNaN(aXY[1]))) {
this.syncPosition();
aXY = this.cfg.getProperty("xy");
}
Dom.setXY(oIFrame, [(aXY[0] - nOffset), (aXY[1] - nOffset)]);
}
},
/**
* Sets the zindex of the iframe shim, if it exists, based on the zindex of
* the Overlay element. The zindex of the iframe is set to be one less
* than the Overlay element's zindex.
*
* <p>NOTE: This method will not bump up the zindex of the Overlay element
* to ensure that the iframe shim has a non-negative zindex.
* If you require the iframe zindex to be 0 or higher, the zindex of
* the Overlay element should be set to a value greater than 0, before
* this method is called.
* </p>
* @method stackIframe
*/
stackIframe: function () {
if (this.iframe) {
var overlayZ = Dom.getStyle(this.element, "zIndex");
if (!YAHOO.lang.isUndefined(overlayZ) && !isNaN(overlayZ)) {
Dom.setStyle(this.iframe, "zIndex", (overlayZ - 1));
}
}
},
/**
* The default event handler fired when the "iframe" property is changed.
* @method configIframe
* @param {String} type The CustomEvent type (usually the property name)
* @param {Object[]} args The CustomEvent arguments. For configuration
* handlers, args[0] will equal the newly applied value for the property.
* @param {Object} obj The scope object. For configuration handlers,
* this will usually equal the owner.
*/
configIframe: function (type, args, obj) {
var bIFrame = args[0];
function createIFrame() {
var oIFrame = this.iframe,
oElement = this.element,
oParent;
if (!oIFrame) {
if (!m_oIFrameTemplate) {
m_oIFrameTemplate = document.createElement("iframe");
if (this.isSecure) {
m_oIFrameTemplate.src = Overlay.IFRAME_SRC;
}
/*
Set the opacity of the <iframe> to 0 so that it
doesn't modify the opacity of any transparent
elements that may be on top of it (like a shadow).
*/
if (UA.ie) {
m_oIFrameTemplate.style.filter = "alpha(opacity=0)";
/*
Need to set the "frameBorder" property to 0
supress the default <iframe> border in IE.
Setting the CSS "border" property alone
doesn't supress it.
*/
m_oIFrameTemplate.frameBorder = 0;
}
else {
m_oIFrameTemplate.style.opacity = "0";
}
m_oIFrameTemplate.style.position = "absolute";
m_oIFrameTemplate.style.border = "none";
m_oIFrameTemplate.style.margin = "0";
m_oIFrameTemplate.style.padding = "0";
m_oIFrameTemplate.style.display = "none";
m_oIFrameTemplate.tabIndex = -1;
}
oIFrame = m_oIFrameTemplate.cloneNode(false);
oParent = oElement.parentNode;
var parentNode = oParent || document.body;
this._addToParent(parentNode, oIFrame);
this.iframe = oIFrame;
}
/*
Show the <iframe> before positioning it since the "setXY"
method of DOM requires the element be in the document
and visible.
*/
this.showIframe();
/*
Syncronize the size and position of the <iframe> to that
of the Overlay.
*/
this.syncIframe();
this.stackIframe();
// Add event listeners to update the <iframe> when necessary
if (!this._hasIframeEventListeners) {
this.showEvent.subscribe(this.showIframe);
this.hideEvent.subscribe(this.hideIframe);
this.changeContentEvent.subscribe(this.syncIframe);
this._hasIframeEventListeners = true;
}
}
function onBeforeShow() {
createIFrame.call(this);
this.beforeShowEvent.unsubscribe(onBeforeShow);
this._iframeDeferred = false;
}
if (bIFrame) { // <iframe> shim is enabled
if (this.cfg.getProperty("visible")) {
createIFrame.call(this);
} else {
if (!this._iframeDeferred) {
this.beforeShowEvent.subscribe(onBeforeShow);
this._iframeDeferred = true;
}
}
} else { // <iframe> shim is disabled
this.hideIframe();
if (this._hasIframeEventListeners) {
this.showEvent.unsubscribe(this.showIframe);
this.hideEvent.unsubscribe(this.hideIframe);
this.changeContentEvent.unsubscribe(this.syncIframe);
this._hasIframeEventListeners = false;
}
}
},
/**
* Set's the container's XY value from DOM if not already set.
*
* Differs from syncPosition, in that the XY value is only sync'd with DOM if
* not already set. The method also refire's the XY config property event, so any
* beforeMove, Move event listeners are invoked.
*
* @method _primeXYFromDOM
* @protected
*/
_primeXYFromDOM : function() {
if (YAHOO.lang.isUndefined(this.cfg.getProperty("xy"))) {
// Set CFG XY based on DOM XY
this.syncPosition();
// Account for XY being set silently in syncPosition (no moveTo fired/called)
this.cfg.refireEvent("xy");
this.beforeShowEvent.unsubscribe(this._primeXYFromDOM);
}
},
/**
* The default event handler fired when the "constraintoviewport"
* property is changed.
* @method configConstrainToViewport
* @param {String} type The CustomEvent type (usually the property name)
* @param {Object[]} args The CustomEvent arguments. For configuration
* handlers, args[0] will equal the newly applied value for
* the property.
* @param {Object} obj The scope object. For configuration handlers,
* this will usually equal the owner.
*/
configConstrainToViewport: function (type, args, obj) {
var val = args[0];
if (val) {
if (! Config.alreadySubscribed(this.beforeMoveEvent, this.enforceConstraints, this)) {
this.beforeMoveEvent.subscribe(this.enforceConstraints, this, true);
}
if (! Config.alreadySubscribed(this.beforeShowEvent, this._primeXYFromDOM)) {
this.beforeShowEvent.subscribe(this._primeXYFromDOM);
}
} else {
this.beforeShowEvent.unsubscribe(this._primeXYFromDOM);
this.beforeMoveEvent.unsubscribe(this.enforceConstraints, this);
}
},
/**
* The default event handler fired when the "context" property
* is changed.
*
* @method configContext
* @param {String} type The CustomEvent type (usually the property name)
* @param {Object[]} args The CustomEvent arguments. For configuration
* handlers, args[0] will equal the newly applied value for the property.
* @param {Object} obj The scope object. For configuration handlers,
* this will usually equal the owner.
*/
configContext: function (type, args, obj) {
var contextArgs = args[0],
contextEl,
elementMagnetCorner,
contextMagnetCorner,
triggers,
defTriggers = this.CONTEXT_TRIGGERS;
if (contextArgs) {
contextEl = contextArgs[0];
elementMagnetCorner = contextArgs[1];
contextMagnetCorner = contextArgs[2];
triggers = contextArgs[3];
if (defTriggers && defTriggers.length > 0) {
triggers = (triggers || []).concat(defTriggers);
}
if (contextEl) {
if (typeof contextEl == "string") {
this.cfg.setProperty("context", [
document.getElementById(contextEl),
elementMagnetCorner,
contextMagnetCorner,
triggers ],
true);
}
if (elementMagnetCorner && contextMagnetCorner) {
this.align(elementMagnetCorner, contextMagnetCorner);
}
if (this._contextTriggers) {
// Unsubscribe Old Set
this._processTriggers(this._contextTriggers, _UNSUBSCRIBE, this._alignOnTrigger);
}
if (triggers) {
// Subscribe New Set
this._processTriggers(triggers, _SUBSCRIBE, this._alignOnTrigger);
this._contextTriggers = triggers;
}
}
}
},
/**
* Custom Event handler for context alignment triggers. Invokes the align method
*
* @method _alignOnTrigger
* @protected
*
* @param {String} type The event type (not used by the default implementation)
* @param {Any[]} args The array of arguments for the trigger event (not used by the default implementation)
*/
_alignOnTrigger: function(type, args) {
this.align();
},
/**
* Helper method to locate the custom event instance for the event name string
* passed in. As a convenience measure, any custom events passed in are returned.
*
* @method _findTriggerCE
* @private
*
* @param {String|CustomEvent} t Either a CustomEvent, or event type (e.g. "windowScroll") for which a
* custom event instance needs to be looked up from the Overlay._TRIGGER_MAP.
*/
_findTriggerCE : function(t) {
var tce = null;
if (t instanceof CustomEvent) {
tce = t;
} else if (Overlay._TRIGGER_MAP[t]) {
tce = Overlay._TRIGGER_MAP[t];
}
return tce;
},
/**
* Utility method that subscribes or unsubscribes the given
* function from the list of trigger events provided.
*
* @method _processTriggers
* @protected
*
* @param {Array[String|CustomEvent]} triggers An array of either CustomEvents, event type strings
* (e.g. "beforeShow", "windowScroll") to/from which the provided function should be
* subscribed/unsubscribed respectively.
*
* @param {String} mode Either "subscribe" or "unsubscribe", specifying whether or not
* we are subscribing or unsubscribing trigger listeners
*
* @param {Function} fn The function to be subscribed/unsubscribed to/from the trigger event.
* Context is always set to the overlay instance, and no additional object argument
* get passed to the subscribed function.
*/
_processTriggers : function(triggers, mode, fn) {
var t, tce;
for (var i = 0, l = triggers.length; i < l; ++i) {
t = triggers[i];
tce = this._findTriggerCE(t);
if (tce) {
tce[mode](fn, this, true);
} else {
this[mode](t, fn);
}
}
},
// END BUILT-IN PROPERTY EVENT HANDLERS //
/**
* Aligns the Overlay to its context element using the specified corner
* points (represented by the constants TOP_LEFT, TOP_RIGHT, BOTTOM_LEFT,
* and BOTTOM_RIGHT.
* @method align
* @param {String} elementAlign The String representing the corner of
* the Overlay that should be aligned to the context element
* @param {String} contextAlign The corner of the context element
* that the elementAlign corner should stick to.
*/
align: function (elementAlign, contextAlign) {
var contextArgs = this.cfg.getProperty("context"),
me = this,
context,
element,
contextRegion;
function doAlign(v, h) {
switch (elementAlign) {
case Overlay.TOP_LEFT:
me.moveTo(h, v);
break;
case Overlay.TOP_RIGHT:
me.moveTo((h - element.offsetWidth), v);
break;
case Overlay.BOTTOM_LEFT:
me.moveTo(h, (v - element.offsetHeight));
break;
case Overlay.BOTTOM_RIGHT:
me.moveTo((h - element.offsetWidth),
(v - element.offsetHeight));
break;
}
}
if (contextArgs) {
context = contextArgs[0];
element = this.element;
me = this;
if (! elementAlign) {
elementAlign = contextArgs[1];
}
if (! contextAlign) {
contextAlign = contextArgs[2];
}
if (element && context) {
contextRegion = Dom.getRegion(context);
switch (contextAlign) {
case Overlay.TOP_LEFT:
doAlign(contextRegion.top, contextRegion.left);
break;
case Overlay.TOP_RIGHT:
doAlign(contextRegion.top, contextRegion.right);
break;
case Overlay.BOTTOM_LEFT:
doAlign(contextRegion.bottom, contextRegion.left);
break;
case Overlay.BOTTOM_RIGHT:
doAlign(contextRegion.bottom, contextRegion.right);
break;
}
}
}
},
/**
* The default event handler executed when the moveEvent is fired, if the
* "constraintoviewport" is set to true.
* @method enforceConstraints
* @param {String} type The CustomEvent type (usually the property name)
* @param {Object[]} args The CustomEvent arguments. For configuration
* handlers, args[0] will equal the newly applied value for the property.
* @param {Object} obj The scope object. For configuration handlers,
* this will usually equal the owner.
*/
enforceConstraints: function (type, args, obj) {
var pos = args[0];
var cXY = this.getConstrainedXY(pos[0], pos[1]);
this.cfg.setProperty("x", cXY[0], true);
this.cfg.setProperty("y", cXY[1], true);
this.cfg.setProperty("xy", cXY, true);
},
/**
* Given x coordinate value, returns the calculated x coordinate required to
* position the Overlay if it is to be constrained to the viewport, based on the
* current element size, viewport dimensions and scroll values.
*
* @param {Number} x The X coordinate value to be constrained
* @return {Number} The constrained x coordinate
*/
getConstrainedX: function (x) {
var oOverlay = this,
oOverlayEl = oOverlay.element,
nOverlayOffsetWidth = oOverlayEl.offsetWidth,
nViewportOffset = Overlay.VIEWPORT_OFFSET,
viewPortWidth = Dom.getViewportWidth(),
scrollX = Dom.getDocumentScrollLeft(),
bCanConstrain = (nOverlayOffsetWidth + nViewportOffset < viewPortWidth),
aContext = this.cfg.getProperty("context"),
oContextEl,
nContextElX,
nContextElWidth,
bFlipped = false,
nLeftRegionWidth,
nRightRegionWidth,
leftConstraint = scrollX + nViewportOffset,
rightConstraint = scrollX + viewPortWidth - nOverlayOffsetWidth - nViewportOffset,
xNew = x,
oOverlapPositions = {
"tltr": true,
"blbr": true,
"brbl": true,
"trtl": true
};
var flipHorizontal = function () {
var nNewX;
if ((oOverlay.cfg.getProperty("x") - scrollX) > nContextElX) {
nNewX = (nContextElX - nOverlayOffsetWidth);
}
else {
nNewX = (nContextElX + nContextElWidth);
}
oOverlay.cfg.setProperty("x", (nNewX + scrollX), true);
return nNewX;
};
/*
Uses the context element's position to calculate the availble width
to the right and left of it to display its corresponding Overlay.
*/
var getDisplayRegionWidth = function () {
// The Overlay is to the right of the context element
if ((oOverlay.cfg.getProperty("x") - scrollX) > nContextElX) {
return (nRightRegionWidth - nViewportOffset);
}
else { // The Overlay is to the left of the context element
return (nLeftRegionWidth - nViewportOffset);
}
};
/*
Positions the Overlay to the left or right of the context element so that it remains
inside the viewport.
*/
var setHorizontalPosition = function () {
var nDisplayRegionWidth = getDisplayRegionWidth(),
fnReturnVal;
if (nOverlayOffsetWidth > nDisplayRegionWidth) {
if (bFlipped) {
/*
All possible positions and values have been
tried, but none were successful, so fall back
to the original size and position.
*/
flipHorizontal();
}
else {
flipHorizontal();
bFlipped = true;
fnReturnVal = setHorizontalPosition();
}
}
return fnReturnVal;
};
// Determine if the current value for the Overlay's "x" configuration property will
// result in the Overlay being positioned outside the boundaries of the viewport
if (x < leftConstraint || x > rightConstraint) {
// The current value for the Overlay's "x" configuration property WILL
// result in the Overlay being positioned outside the boundaries of the viewport
if (bCanConstrain) {
// If the "preventcontextoverlap" configuration property is set to "true",
// try to flip the Overlay to both keep it inside the boundaries of the
// viewport AND from overlaping its context element.
if (this.cfg.getProperty("preventcontextoverlap") && aContext &&
oOverlapPositions[(aContext[1] + aContext[2])]) {
oContextEl = aContext[0];
nContextElX = Dom.getX(oContextEl) - scrollX;
nContextElWidth = oContextEl.offsetWidth;
nLeftRegionWidth = nContextElX;
nRightRegionWidth = (viewPortWidth - (nContextElX + nContextElWidth));
setHorizontalPosition();
xNew = this.cfg.getProperty("x");
}
else {
if (x < leftConstraint) {
xNew = leftConstraint;
} else if (x > rightConstraint) {
xNew = rightConstraint;
}
}
} else {
// The "x" configuration property cannot be set to a value that will keep
// entire Overlay inside the boundary of the viewport. Therefore, set
// the "x" configuration property to scrollY to keep as much of the
// Overlay inside the viewport as possible.
xNew = nViewportOffset + scrollX;
}
}
return xNew;
},
/**
* Given y coordinate value, returns the calculated y coordinate required to
* position the Overlay if it is to be constrained to the viewport, based on the
* current element size, viewport dimensions and scroll values.
*
* @param {Number} y The Y coordinate value to be constrained
* @return {Number} The constrained y coordinate
*/
getConstrainedY: function (y) {
var oOverlay = this,
oOverlayEl = oOverlay.element,
nOverlayOffsetHeight = oOverlayEl.offsetHeight,
nViewportOffset = Overlay.VIEWPORT_OFFSET,
viewPortHeight = Dom.getViewportHeight(),
scrollY = Dom.getDocumentScrollTop(),
bCanConstrain = (nOverlayOffsetHeight + nViewportOffset < viewPortHeight),
aContext = this.cfg.getProperty("context"),
oContextEl,
nContextElY,
nContextElHeight,
bFlipped = false,
nTopRegionHeight,
nBottomRegionHeight,
topConstraint = scrollY + nViewportOffset,
bottomConstraint = scrollY + viewPortHeight - nOverlayOffsetHeight - nViewportOffset,
yNew = y,
oOverlapPositions = {
"trbr": true,
"tlbl": true,
"bltl": true,
"brtr": true
};
var flipVertical = function () {
var nNewY;
// The Overlay is below the context element, flip it above
if ((oOverlay.cfg.getProperty("y") - scrollY) > nContextElY) {
nNewY = (nContextElY - nOverlayOffsetHeight);
}
else { // The Overlay is above the context element, flip it below
nNewY = (nContextElY + nContextElHeight);
}
oOverlay.cfg.setProperty("y", (nNewY + scrollY), true);
return nNewY;
};
/*
Uses the context element's position to calculate the availble height
above and below it to display its corresponding Overlay.
*/
var getDisplayRegionHeight = function () {
// The Overlay is below the context element
if ((oOverlay.cfg.getProperty("y") - scrollY) > nContextElY) {
return (nBottomRegionHeight - nViewportOffset);
}
else { // The Overlay is above the context element
return (nTopRegionHeight - nViewportOffset);
}
};
/*
Trys to place the Overlay in the best possible position (either above or
below its corresponding context element).
*/
var setVerticalPosition = function () {
var nDisplayRegionHeight = getDisplayRegionHeight(),
fnReturnVal;
if (nOverlayOffsetHeight > nDisplayRegionHeight) {
if (bFlipped) {
/*
All possible positions and values for the
"maxheight" configuration property have been
tried, but none were successful, so fall back
to the original size and position.
*/
flipVertical();
}
else {
flipVertical();
bFlipped = true;
fnReturnVal = setVerticalPosition();
}
}
return fnReturnVal;
};
// Determine if the current value for the Overlay's "y" configuration property will
// result in the Overlay being positioned outside the boundaries of the viewport
if (y < topConstraint || y > bottomConstraint) {
// The current value for the Overlay's "y" configuration property WILL
// result in the Overlay being positioned outside the boundaries of the viewport
if (bCanConstrain) {
// If the "preventcontextoverlap" configuration property is set to "true",
// try to flip the Overlay to both keep it inside the boundaries of the
// viewport AND from overlaping its context element.
if (this.cfg.getProperty("preventcontextoverlap") && aContext &&
oOverlapPositions[(aContext[1] + aContext[2])]) {
oContextEl = aContext[0];
nContextElHeight = oContextEl.offsetHeight;
nContextElY = (Dom.getY(oContextEl) - scrollY);
nTopRegionHeight = nContextElY;
nBottomRegionHeight = (viewPortHeight - (nContextElY + nContextElHeight));
setVerticalPosition();
yNew = oOverlay.cfg.getProperty("y");
}
else {
if (y < topConstraint) {
yNew = topConstraint;
} else if (y > bottomConstraint) {
yNew = bottomConstraint;
}
}
}
else {
// The "y" configuration property cannot be set to a value that will keep
// entire Overlay inside the boundary of the viewport. Therefore, set
// the "y" configuration property to scrollY to keep as much of the
// Overlay inside the viewport as possible.
yNew = nViewportOffset + scrollY;
}
}
return yNew;
},
/**
* Given x, y coordinate values, returns the calculated coordinates required to
* position the Overlay if it is to be constrained to the viewport, based on the
* current element size, viewport dimensions and scroll values.
*
* @param {Number} x The X coordinate value to be constrained
* @param {Number} y The Y coordinate value to be constrained
* @return {Array} The constrained x and y coordinates at index 0 and 1 respectively;
*/
getConstrainedXY: function(x, y) {
return [this.getConstrainedX(x), this.getConstrainedY(y)];
},
/**
* Centers the container in the viewport.
* @method center
*/
center: function () {
var nViewportOffset = Overlay.VIEWPORT_OFFSET,
elementWidth = this.element.offsetWidth,
elementHeight = this.element.offsetHeight,
viewPortWidth = Dom.getViewportWidth(),
viewPortHeight = Dom.getViewportHeight(),
x,
y;
if (elementWidth < viewPortWidth) {
x = (viewPortWidth / 2) - (elementWidth / 2) + Dom.getDocumentScrollLeft();
} else {
x = nViewportOffset + Dom.getDocumentScrollLeft();
}
if (elementHeight < viewPortHeight) {
y = (viewPortHeight / 2) - (elementHeight / 2) + Dom.getDocumentScrollTop();
} else {
y = nViewportOffset + Dom.getDocumentScrollTop();
}
this.cfg.setProperty("xy", [parseInt(x, 10), parseInt(y, 10)]);
this.cfg.refireEvent("iframe");
if (UA.webkit) {
this.forceContainerRedraw();
}
},
/**
* Synchronizes the Panel's "xy", "x", and "y" properties with the
* Panel's position in the DOM. This is primarily used to update
* position information during drag & drop.
* @method syncPosition
*/
syncPosition: function () {
var pos = Dom.getXY(this.element);
this.cfg.setProperty("x", pos[0], true);
this.cfg.setProperty("y", pos[1], true);
this.cfg.setProperty("xy", pos, true);
},
/**
* Event handler fired when the resize monitor element is resized.
* @method onDomResize
* @param {DOMEvent} e The resize DOM event
* @param {Object} obj The scope object
*/
onDomResize: function (e, obj) {
var me = this;
Overlay.superclass.onDomResize.call(this, e, obj);
setTimeout(function () {
me.syncPosition();
me.cfg.refireEvent("iframe");
me.cfg.refireEvent("context");
}, 0);
},
/**
* Determines the content box height of the given element (height of the element, without padding or borders) in pixels.
*
* @method _getComputedHeight
* @private
* @param {HTMLElement} el The element for which the content height needs to be determined
* @return {Number} The content box height of the given element, or null if it could not be determined.
*/
_getComputedHeight : (function() {
if (document.defaultView && document.defaultView.getComputedStyle) {
return function(el) {
var height = null;
if (el.ownerDocument && el.ownerDocument.defaultView) {
var computed = el.ownerDocument.defaultView.getComputedStyle(el, '');
if (computed) {
height = parseInt(computed.height, 10);
}
}
return (Lang.isNumber(height)) ? height : null;
};
} else {
return function(el) {
var height = null;
if (el.style.pixelHeight) {
height = el.style.pixelHeight;
}
return (Lang.isNumber(height)) ? height : null;
};
}
})(),
/**
* autofillheight validator. Verifies that the autofill value is either null
* or one of the strings : "body", "header" or "footer".
*
* @method _validateAutoFillHeight
* @protected
* @param {String} val
* @return true, if valid, false otherwise
*/
_validateAutoFillHeight : function(val) {
return (!val) || (Lang.isString(val) && Overlay.STD_MOD_RE.test(val));
},
/**
* The default custom event handler executed when the overlay's height is changed,
* if the autofillheight property has been set.
*
* @method _autoFillOnHeightChange
* @protected
* @param {String} type The event type
* @param {Array} args The array of arguments passed to event subscribers
* @param {HTMLElement} el The header, body or footer element which is to be resized to fill
* out the containers height
*/
_autoFillOnHeightChange : function(type, args, el) {
var height = this.cfg.getProperty("height");
if ((height && height !== "auto") || (height === 0)) {
this.fillHeight(el);
}
},
/**
* Returns the sub-pixel height of the el, using getBoundingClientRect, if available,
* otherwise returns the offsetHeight
* @method _getPreciseHeight
* @private
* @param {HTMLElement} el
* @return {Float} The sub-pixel height if supported by the browser, else the rounded height.
*/
_getPreciseHeight : function(el) {
var height = el.offsetHeight;
if (el.getBoundingClientRect) {
var rect = el.getBoundingClientRect();
height = rect.bottom - rect.top;
}
return height;
},
/**
* <p>
* Sets the height on the provided header, body or footer element to
* fill out the height of the container. It determines the height of the
* containers content box, based on it's configured height value, and
* sets the height of the autofillheight element to fill out any
* space remaining after the other standard module element heights
* have been accounted for.
* </p>
* <p><strong>NOTE:</strong> This method is not designed to work if an explicit
* height has not been set on the container, since for an "auto" height container,
* the heights of the header/body/footer will drive the height of the container.</p>
*
* @method fillHeight
* @param {HTMLElement} el The element which should be resized to fill out the height
* of the container element.
*/
fillHeight : function(el) {
if (el) {
var container = this.innerElement || this.element,
containerEls = [this.header, this.body, this.footer],
containerEl,
total = 0,
filled = 0,
remaining = 0,
validEl = false;
for (var i = 0, l = containerEls.length; i < l; i++) {
containerEl = containerEls[i];
if (containerEl) {
if (el !== containerEl) {
filled += this._getPreciseHeight(containerEl);
} else {
validEl = true;
}
}
}
if (validEl) {
if (UA.ie || UA.opera) {
// Need to set height to 0, to allow height to be reduced
Dom.setStyle(el, 'height', 0 + 'px');
}
total = this._getComputedHeight(container);
// Fallback, if we can't get computed value for content height
if (total === null) {
Dom.addClass(container, "yui-override-padding");
total = container.clientHeight; // Content, No Border, 0 Padding (set by yui-override-padding)
Dom.removeClass(container, "yui-override-padding");
}
remaining = Math.max(total - filled, 0);
Dom.setStyle(el, "height", remaining + "px");
// Re-adjust height if required, to account for el padding and border
if (el.offsetHeight != remaining) {
remaining = Math.max(remaining - (el.offsetHeight - remaining), 0);
}
Dom.setStyle(el, "height", remaining + "px");
}
}
},
/**
* Places the Overlay on top of all other instances of
* YAHOO.widget.Overlay.
* @method bringToTop
*/
bringToTop: function () {
var aOverlays = [],
oElement = this.element;
function compareZIndexDesc(p_oOverlay1, p_oOverlay2) {
var sZIndex1 = Dom.getStyle(p_oOverlay1, "zIndex"),
sZIndex2 = Dom.getStyle(p_oOverlay2, "zIndex"),
nZIndex1 = (!sZIndex1 || isNaN(sZIndex1)) ? 0 : parseInt(sZIndex1, 10),
nZIndex2 = (!sZIndex2 || isNaN(sZIndex2)) ? 0 : parseInt(sZIndex2, 10);
if (nZIndex1 > nZIndex2) {
return -1;
} else if (nZIndex1 < nZIndex2) {
return 1;
} else {
return 0;
}
}
function isOverlayElement(p_oElement) {
var isOverlay = Dom.hasClass(p_oElement, Overlay.CSS_OVERLAY),
Panel = YAHOO.widget.Panel;
if (isOverlay && !Dom.isAncestor(oElement, p_oElement)) {
if (Panel && Dom.hasClass(p_oElement, Panel.CSS_PANEL)) {
aOverlays[aOverlays.length] = p_oElement.parentNode;
} else {
aOverlays[aOverlays.length] = p_oElement;
}
}
}
Dom.getElementsBy(isOverlayElement, "DIV", document.body);
aOverlays.sort(compareZIndexDesc);
var oTopOverlay = aOverlays[0],
nTopZIndex;
if (oTopOverlay) {
nTopZIndex = Dom.getStyle(oTopOverlay, "zIndex");
if (!isNaN(nTopZIndex)) {
var bRequiresBump = false;
if (oTopOverlay != oElement) {
bRequiresBump = true;
} else if (aOverlays.length > 1) {
var nNextZIndex = Dom.getStyle(aOverlays[1], "zIndex");
// Don't rely on DOM order to stack if 2 overlays are at the same zindex.
if (!isNaN(nNextZIndex) && (nTopZIndex == nNextZIndex)) {
bRequiresBump = true;
}
}
if (bRequiresBump) {
this.cfg.setProperty("zindex", (parseInt(nTopZIndex, 10) + 2));
}
}
}
},
/**
* Removes the Overlay element from the DOM and sets all child
* elements to null.
* @method destroy
*/
destroy: function () {
if (this.iframe) {
this.iframe.parentNode.removeChild(this.iframe);
}
this.iframe = null;
Overlay.windowResizeEvent.unsubscribe(
this.doCenterOnDOMEvent, this);
Overlay.windowScrollEvent.unsubscribe(
this.doCenterOnDOMEvent, this);
Module.textResizeEvent.unsubscribe(this._autoFillOnHeightChange);
Overlay.superclass.destroy.call(this);
},
/**
* Can be used to force the container to repaint/redraw it's contents.
* <p>
* By default applies and then removes a 1px bottom margin through the
* application/removal of a "yui-force-redraw" class.
* </p>
* <p>
* It is currently used by Overlay to force a repaint for webkit
* browsers, when centering.
* </p>
* @method forceContainerRedraw
*/
forceContainerRedraw : function() {
var c = this;
Dom.addClass(c.element, "yui-force-redraw");
setTimeout(function() {
Dom.removeClass(c.element, "yui-force-redraw");
}, 0);
},
/**
* Returns a String representation of the object.
* @method toString
* @return {String} The string representation of the Overlay.
*/
toString: function () {
return "Overlay " + this.id;
}
});
}());
(function () {
/**
* OverlayManager is used for maintaining the focus status of
* multiple Overlays.
* @namespace YAHOO.widget
* @namespace YAHOO.widget
* @class OverlayManager
* @constructor
* @param {Array} overlays Optional. A collection of Overlays to register
* with the manager.
* @param {Object} userConfig The object literal representing the user
* configuration of the OverlayManager
*/
YAHOO.widget.OverlayManager = function (userConfig) {
this.init(userConfig);
};
var Overlay = YAHOO.widget.Overlay,
Event = YAHOO.util.Event,
Dom = YAHOO.util.Dom,
Config = YAHOO.util.Config,
CustomEvent = YAHOO.util.CustomEvent,
OverlayManager = YAHOO.widget.OverlayManager;
/**
* The CSS class representing a focused Overlay
* @property OverlayManager.CSS_FOCUSED
* @static
* @final
* @type String
*/
OverlayManager.CSS_FOCUSED = "focused";
OverlayManager.prototype = {
/**
* The class's constructor function
* @property contructor
* @type Function
*/
constructor: OverlayManager,
/**
* The array of Overlays that are currently registered
* @property overlays
* @type YAHOO.widget.Overlay[]
*/
overlays: null,
/**
* Initializes the default configuration of the OverlayManager
* @method initDefaultConfig
*/
initDefaultConfig: function () {
/**
* The collection of registered Overlays in use by
* the OverlayManager
* @config overlays
* @type YAHOO.widget.Overlay[]
* @default null
*/
this.cfg.addProperty("overlays", { suppressEvent: true } );
/**
* The default DOM event that should be used to focus an Overlay
* @config focusevent
* @type String
* @default "mousedown"
*/
this.cfg.addProperty("focusevent", { value: "mousedown" } );
},
/**
* Initializes the OverlayManager
* @method init
* @param {Overlay[]} overlays Optional. A collection of Overlays to
* register with the manager.
* @param {Object} userConfig The object literal representing the user
* configuration of the OverlayManager
*/
init: function (userConfig) {
/**
* The OverlayManager's Config object used for monitoring
* configuration properties.
* @property cfg
* @type Config
*/
this.cfg = new Config(this);
this.initDefaultConfig();
if (userConfig) {
this.cfg.applyConfig(userConfig, true);
}
this.cfg.fireQueue();
/**
* The currently activated Overlay
* @property activeOverlay
* @private
* @type YAHOO.widget.Overlay
*/
var activeOverlay = null;
/**
* Returns the currently focused Overlay
* @method getActive
* @return {Overlay} The currently focused Overlay
*/
this.getActive = function () {
return activeOverlay;
};
/**
* Focuses the specified Overlay
* @method focus
* @param {Overlay} overlay The Overlay to focus
* @param {String} overlay The id of the Overlay to focus
*/
this.focus = function (overlay) {
var o = this.find(overlay);
if (o) {
o.focus();
}
};
/**
* Removes the specified Overlay from the manager
* @method remove
* @param {Overlay} overlay The Overlay to remove
* @param {String} overlay The id of the Overlay to remove
*/
this.remove = function (overlay) {
var o = this.find(overlay),
originalZ;
if (o) {
if (activeOverlay == o) {
activeOverlay = null;
}
var bDestroyed = (o.element === null && o.cfg === null) ? true : false;
if (!bDestroyed) {
// Set it's zindex so that it's sorted to the end.
originalZ = Dom.getStyle(o.element, "zIndex");
o.cfg.setProperty("zIndex", -1000, true);
}
this.overlays.sort(this.compareZIndexDesc);
this.overlays = this.overlays.slice(0, (this.overlays.length - 1));
o.hideEvent.unsubscribe(o.blur);
o.destroyEvent.unsubscribe(this._onOverlayDestroy, o);
o.focusEvent.unsubscribe(this._onOverlayFocusHandler, o);
o.blurEvent.unsubscribe(this._onOverlayBlurHandler, o);
if (!bDestroyed) {
Event.removeListener(o.element, this.cfg.getProperty("focusevent"), this._onOverlayElementFocus);
o.cfg.setProperty("zIndex", originalZ, true);
o.cfg.setProperty("manager", null);
}
/* _managed Flag for custom or existing. Don't want to remove existing */
if (o.focusEvent._managed) { o.focusEvent = null; }
if (o.blurEvent._managed) { o.blurEvent = null; }
if (o.focus._managed) { o.focus = null; }
if (o.blur._managed) { o.blur = null; }
}
};
/**
* Removes focus from all registered Overlays in the manager
* @method blurAll
*/
this.blurAll = function () {
var nOverlays = this.overlays.length,
i;
if (nOverlays > 0) {
i = nOverlays - 1;
do {
this.overlays[i].blur();
}
while(i--);
}
};
/**
* Updates the state of the OverlayManager and overlay, as a result of the overlay
* being blurred.
*
* @method _manageBlur
* @param {Overlay} overlay The overlay instance which got blurred.
* @protected
*/
this._manageBlur = function (overlay) {
var changed = false;
if (activeOverlay == overlay) {
Dom.removeClass(activeOverlay.element, OverlayManager.CSS_FOCUSED);
activeOverlay = null;
changed = true;
}
return changed;
};
/**
* Updates the state of the OverlayManager and overlay, as a result of the overlay
* receiving focus.
*
* @method _manageFocus
* @param {Overlay} overlay The overlay instance which got focus.
* @protected
*/
this._manageFocus = function(overlay) {
var changed = false;
if (activeOverlay != overlay) {
if (activeOverlay) {
activeOverlay.blur();
}
activeOverlay = overlay;
this.bringToTop(activeOverlay);
Dom.addClass(activeOverlay.element, OverlayManager.CSS_FOCUSED);
changed = true;
}
return changed;
};
var overlays = this.cfg.getProperty("overlays");
if (! this.overlays) {
this.overlays = [];
}
if (overlays) {
this.register(overlays);
this.overlays.sort(this.compareZIndexDesc);
}
},
/**
* @method _onOverlayElementFocus
* @description Event handler for the DOM event that is used to focus
* the Overlay instance as specified by the "focusevent"
* configuration property.
* @private
* @param {Event} p_oEvent Object representing the DOM event
* object passed back by the event utility (Event).
*/
_onOverlayElementFocus: function (p_oEvent) {
var oTarget = Event.getTarget(p_oEvent),
oClose = this.close;
if (oClose && (oTarget == oClose || Dom.isAncestor(oClose, oTarget))) {
this.blur();
} else {
this.focus();
}
},
/**
* @method _onOverlayDestroy
* @description "destroy" event handler for the Overlay.
* @private
* @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 {Overlay} p_oOverlay Object representing the overlay that
* fired the event.
*/
_onOverlayDestroy: function (p_sType, p_aArgs, p_oOverlay) {
this.remove(p_oOverlay);
},
/**
* @method _onOverlayFocusHandler
*
* focusEvent Handler, used to delegate to _manageFocus with the
* correct arguments.
*
* @private
* @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 {Overlay} p_oOverlay Object representing the overlay that
* fired the event.
*/
_onOverlayFocusHandler: function(p_sType, p_aArgs, p_oOverlay) {
this._manageFocus(p_oOverlay);
},
/**
* @method _onOverlayBlurHandler
*
* blurEvent Handler, used to delegate to _manageBlur with the
* correct arguments.
*
* @private
* @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 {Overlay} p_oOverlay Object representing the overlay that
* fired the event.
*/
_onOverlayBlurHandler: function(p_sType, p_aArgs, p_oOverlay) {
this._manageBlur(p_oOverlay);
},
/**
* Subscribes to the Overlay based instance focusEvent, to allow the OverlayManager to
* monitor focus state.
*
* If the instance already has a focusEvent (e.g. Menu), OverlayManager will subscribe
* to the existing focusEvent, however if a focusEvent or focus method does not exist
* on the instance, the _bindFocus method will add them, and the focus method will
* update the OverlayManager's state directly.
*
* @method _bindFocus
* @param {Overlay} overlay The overlay for which focus needs to be managed
* @protected
*/
_bindFocus : function(overlay) {
var mgr = this;
if (!overlay.focusEvent) {
overlay.focusEvent = overlay.createEvent("focus");
overlay.focusEvent.signature = CustomEvent.LIST;
overlay.focusEvent._managed = true;
} else {
overlay.focusEvent.subscribe(mgr._onOverlayFocusHandler, overlay, mgr);
}
if (!overlay.focus) {
Event.on(overlay.element, mgr.cfg.getProperty("focusevent"), mgr._onOverlayElementFocus, null, overlay);
overlay.focus = function () {
if (mgr._manageFocus(this)) {
// For Panel/Dialog
if (this.cfg.getProperty("visible") && this.focusFirst) {
this.focusFirst();
}
this.focusEvent.fire();
}
};
overlay.focus._managed = true;
}
},
/**
* Subscribes to the Overlay based instance's blurEvent to allow the OverlayManager to
* monitor blur state.
*
* If the instance already has a blurEvent (e.g. Menu), OverlayManager will subscribe
* to the existing blurEvent, however if a blurEvent or blur method does not exist
* on the instance, the _bindBlur method will add them, and the blur method
* update the OverlayManager's state directly.
*
* @method _bindBlur
* @param {Overlay} overlay The overlay for which blur needs to be managed
* @protected
*/
_bindBlur : function(overlay) {
var mgr = this;
if (!overlay.blurEvent) {
overlay.blurEvent = overlay.createEvent("blur");
overlay.blurEvent.signature = CustomEvent.LIST;
overlay.focusEvent._managed = true;
} else {
overlay.blurEvent.subscribe(mgr._onOverlayBlurHandler, overlay, mgr);
}
if (!overlay.blur) {
overlay.blur = function () {
if (mgr._manageBlur(this)) {
this.blurEvent.fire();
}
};
overlay.blur._managed = true;
}
overlay.hideEvent.subscribe(overlay.blur);
},
/**
* Subscribes to the Overlay based instance's destroyEvent, to allow the Overlay
* to be removed for the OverlayManager when destroyed.
*
* @method _bindDestroy
* @param {Overlay} overlay The overlay instance being managed
* @protected
*/
_bindDestroy : function(overlay) {
var mgr = this;
overlay.destroyEvent.subscribe(mgr._onOverlayDestroy, overlay, mgr);
},
/**
* Ensures the zIndex configuration property on the managed overlay based instance
* is set to the computed zIndex value from the DOM (with "auto" translating to 0).
*
* @method _syncZIndex
* @param {Overlay} overlay The overlay instance being managed
* @protected
*/
_syncZIndex : function(overlay) {
var zIndex = Dom.getStyle(overlay.element, "zIndex");
if (!isNaN(zIndex)) {
overlay.cfg.setProperty("zIndex", parseInt(zIndex, 10));
} else {
overlay.cfg.setProperty("zIndex", 0);
}
},
/**
* Registers an Overlay or an array of Overlays with the manager. Upon
* registration, the Overlay receives functions for focus and blur,
* along with CustomEvents for each.
*
* @method register
* @param {Overlay} overlay An Overlay to register with the manager.
* @param {Overlay[]} overlay An array of Overlays to register with
* the manager.
* @return {boolean} true if any Overlays are registered.
*/
register: function (overlay) {
var registered = false,
i,
n;
if (overlay instanceof Overlay) {
overlay.cfg.addProperty("manager", { value: this } );
this._bindFocus(overlay);
this._bindBlur(overlay);
this._bindDestroy(overlay);
this._syncZIndex(overlay);
this.overlays.push(overlay);
this.bringToTop(overlay);
registered = true;
} else if (overlay instanceof Array) {
for (i = 0, n = overlay.length; i < n; i++) {
registered = this.register(overlay[i]) || registered;
}
}
return registered;
},
/**
* Places the specified Overlay instance on top of all other
* Overlay instances.
* @method bringToTop
* @param {YAHOO.widget.Overlay} p_oOverlay Object representing an
* Overlay instance.
* @param {String} p_oOverlay String representing the id of an
* Overlay instance.
*/
bringToTop: function (p_oOverlay) {
var oOverlay = this.find(p_oOverlay),
nTopZIndex,
oTopOverlay,
aOverlays;
if (oOverlay) {
aOverlays = this.overlays;
aOverlays.sort(this.compareZIndexDesc);
oTopOverlay = aOverlays[0];
if (oTopOverlay) {
nTopZIndex = Dom.getStyle(oTopOverlay.element, "zIndex");
if (!isNaN(nTopZIndex)) {
var bRequiresBump = false;
if (oTopOverlay !== oOverlay) {
bRequiresBump = true;
} else if (aOverlays.length > 1) {
var nNextZIndex = Dom.getStyle(aOverlays[1].element, "zIndex");
// Don't rely on DOM order to stack if 2 overlays are at the same zindex.
if (!isNaN(nNextZIndex) && (nTopZIndex == nNextZIndex)) {
bRequiresBump = true;
}
}
if (bRequiresBump) {
oOverlay.cfg.setProperty("zindex", (parseInt(nTopZIndex, 10) + 2));
}
}
aOverlays.sort(this.compareZIndexDesc);
}
}
},
/**
* Attempts to locate an Overlay by instance or ID.
* @method find
* @param {Overlay} overlay An Overlay to locate within the manager
* @param {String} overlay An Overlay id to locate within the manager
* @return {Overlay} The requested Overlay, if found, or null if it
* cannot be located.
*/
find: function (overlay) {
var isInstance = overlay instanceof Overlay,
overlays = this.overlays,
n = overlays.length,
found = null,
o,
i;
if (isInstance || typeof overlay == "string") {
for (i = n-1; i >= 0; i--) {
o = overlays[i];
if ((isInstance && (o === overlay)) || (o.id == overlay)) {
found = o;
break;
}
}
}
return found;
},
/**
* Used for sorting the manager's Overlays by z-index.
* @method compareZIndexDesc
* @private
* @return {Number} 0, 1, or -1, depending on where the Overlay should
* fall in the stacking order.
*/
compareZIndexDesc: function (o1, o2) {
var zIndex1 = (o1.cfg) ? o1.cfg.getProperty("zIndex") : null, // Sort invalid (destroyed)
zIndex2 = (o2.cfg) ? o2.cfg.getProperty("zIndex") : null; // objects at bottom.
if (zIndex1 === null && zIndex2 === null) {
return 0;
} else if (zIndex1 === null){
return 1;
} else if (zIndex2 === null) {
return -1;
} else if (zIndex1 > zIndex2) {
return -1;
} else if (zIndex1 < zIndex2) {
return 1;
} else {
return 0;
}
},
/**
* Shows all Overlays in the manager.
* @method showAll
*/
showAll: function () {
var overlays = this.overlays,
n = overlays.length,
i;
for (i = n - 1; i >= 0; i--) {
overlays[i].show();
}
},
/**
* Hides all Overlays in the manager.
* @method hideAll
*/
hideAll: function () {
var overlays = this.overlays,
n = overlays.length,
i;
for (i = n - 1; i >= 0; i--) {
overlays[i].hide();
}
},
/**
* Returns a string representation of the object.
* @method toString
* @return {String} The string representation of the OverlayManager
*/
toString: function () {
return "OverlayManager";
}
};
}());
(function () {
/**
* ContainerEffect encapsulates animation transitions that are executed when
* an Overlay is shown or hidden.
* @namespace YAHOO.widget
* @class ContainerEffect
* @constructor
* @param {YAHOO.widget.Overlay} overlay The Overlay that the animation
* should be associated with
* @param {Object} attrIn The object literal representing the animation
* arguments to be used for the animate-in transition. The arguments for
* this literal are: attributes(object, see YAHOO.util.Anim for description),
* duration(Number), and method(i.e. Easing.easeIn).
* @param {Object} attrOut The object literal representing the animation
* arguments to be used for the animate-out transition. The arguments for
* this literal are: attributes(object, see YAHOO.util.Anim for description),
* duration(Number), and method(i.e. Easing.easeIn).
* @param {HTMLElement} targetElement Optional. The target element that
* should be animated during the transition. Defaults to overlay.element.
* @param {class} Optional. The animation class to instantiate. Defaults to
* YAHOO.util.Anim. Other options include YAHOO.util.Motion.
*/
YAHOO.widget.ContainerEffect = function (overlay, attrIn, attrOut, targetElement, animClass) {
if (!animClass) {
animClass = YAHOO.util.Anim;
}
/**
* The overlay to animate
* @property overlay
* @type YAHOO.widget.Overlay
*/
this.overlay = overlay;
/**
* The animation attributes to use when transitioning into view
* @property attrIn
* @type Object
*/
this.attrIn = attrIn;
/**
* The animation attributes to use when transitioning out of view
* @property attrOut
* @type Object
*/
this.attrOut = attrOut;
/**
* The target element to be animated
* @property targetElement
* @type HTMLElement
*/
this.targetElement = targetElement || overlay.element;
/**
* The animation class to use for animating the overlay
* @property animClass
* @type class
*/
this.animClass = animClass;
};
var Dom = YAHOO.util.Dom,
CustomEvent = YAHOO.util.CustomEvent,
ContainerEffect = YAHOO.widget.ContainerEffect;
/**
* A pre-configured ContainerEffect instance that can be used for fading
* an overlay in and out.
* @method FADE
* @static
* @param {YAHOO.widget.Overlay} overlay The Overlay object to animate
* @param {Number} dur The duration of the animation
* @return {YAHOO.widget.ContainerEffect} The configured ContainerEffect object
*/
ContainerEffect.FADE = function (overlay, dur) {
var Easing = YAHOO.util.Easing,
fin = {
attributes: {opacity:{from:0, to:1}},
duration: dur,
method: Easing.easeIn
},
fout = {
attributes: {opacity:{to:0}},
duration: dur,
method: Easing.easeOut
},
fade = new ContainerEffect(overlay, fin, fout, overlay.element);
fade.handleUnderlayStart = function() {
var underlay = this.overlay.underlay;
if (underlay && YAHOO.env.ua.ie) {
var hasFilters = (underlay.filters && underlay.filters.length > 0);
if(hasFilters) {
Dom.addClass(overlay.element, "yui-effect-fade");
}
}
};
fade.handleUnderlayComplete = function() {
var underlay = this.overlay.underlay;
if (underlay && YAHOO.env.ua.ie) {
Dom.removeClass(overlay.element, "yui-effect-fade");
}
};
fade.handleStartAnimateIn = function (type, args, obj) {
Dom.addClass(obj.overlay.element, "hide-select");
if (!obj.overlay.underlay) {
obj.overlay.cfg.refireEvent("underlay");
}
obj.handleUnderlayStart();
obj.overlay._setDomVisibility(true);
Dom.setStyle(obj.overlay.element, "opacity", 0);
};
fade.handleCompleteAnimateIn = function (type,args,obj) {
Dom.removeClass(obj.overlay.element, "hide-select");
if (obj.overlay.element.style.filter) {
obj.overlay.element.style.filter = null;
}
obj.handleUnderlayComplete();
obj.overlay.cfg.refireEvent("iframe");
obj.animateInCompleteEvent.fire();
};
fade.handleStartAnimateOut = function (type, args, obj) {
Dom.addClass(obj.overlay.element, "hide-select");
obj.handleUnderlayStart();
};
fade.handleCompleteAnimateOut = function (type, args, obj) {
Dom.removeClass(obj.overlay.element, "hide-select");
if (obj.overlay.element.style.filter) {
obj.overlay.element.style.filter = null;
}
obj.overlay._setDomVisibility(false);
Dom.setStyle(obj.overlay.element, "opacity", 1);
obj.handleUnderlayComplete();
obj.overlay.cfg.refireEvent("iframe");
obj.animateOutCompleteEvent.fire();
};
fade.init();
return fade;
};
/**
* A pre-configured ContainerEffect instance that can be used for sliding an
* overlay in and out.
* @method SLIDE
* @static
* @param {YAHOO.widget.Overlay} overlay The Overlay object to animate
* @param {Number} dur The duration of the animation
* @return {YAHOO.widget.ContainerEffect} The configured ContainerEffect object
*/
ContainerEffect.SLIDE = function (overlay, dur) {
var Easing = YAHOO.util.Easing,
x = overlay.cfg.getProperty("x") || Dom.getX(overlay.element),
y = overlay.cfg.getProperty("y") || Dom.getY(overlay.element),
clientWidth = Dom.getClientWidth(),
offsetWidth = overlay.element.offsetWidth,
sin = {
attributes: { points: { to: [x, y] } },
duration: dur,
method: Easing.easeIn
},
sout = {
attributes: { points: { to: [(clientWidth + 25), y] } },
duration: dur,
method: Easing.easeOut
},
slide = new ContainerEffect(overlay, sin, sout, overlay.element, YAHOO.util.Motion);
slide.handleStartAnimateIn = function (type,args,obj) {
obj.overlay.element.style.left = ((-25) - offsetWidth) + "px";
obj.overlay.element.style.top = y + "px";
};
slide.handleTweenAnimateIn = function (type, args, obj) {
var pos = Dom.getXY(obj.overlay.element),
currentX = pos[0],
currentY = pos[1];
if (Dom.getStyle(obj.overlay.element, "visibility") ==
"hidden" && currentX < x) {
obj.overlay._setDomVisibility(true);
}
obj.overlay.cfg.setProperty("xy", [currentX, currentY], true);
obj.overlay.cfg.refireEvent("iframe");
};
slide.handleCompleteAnimateIn = function (type, args, obj) {
obj.overlay.cfg.setProperty("xy", [x, y], true);
obj.startX = x;
obj.startY = y;
obj.overlay.cfg.refireEvent("iframe");
obj.animateInCompleteEvent.fire();
};
slide.handleStartAnimateOut = function (type, args, obj) {
var vw = Dom.getViewportWidth(),
pos = Dom.getXY(obj.overlay.element),
yso = pos[1];
obj.animOut.attributes.points.to = [(vw + 25), yso];
};
slide.handleTweenAnimateOut = function (type, args, obj) {
var pos = Dom.getXY(obj.overlay.element),
xto = pos[0],
yto = pos[1];
obj.overlay.cfg.setProperty("xy", [xto, yto], true);
obj.overlay.cfg.refireEvent("iframe");
};
slide.handleCompleteAnimateOut = function (type, args, obj) {
obj.overlay._setDomVisibility(false);
obj.overlay.cfg.setProperty("xy", [x, y]);
obj.animateOutCompleteEvent.fire();
};
slide.init();
return slide;
};
ContainerEffect.prototype = {
/**
* Initializes the animation classes and events.
* @method init
*/
init: function () {
this.beforeAnimateInEvent = this.createEvent("beforeAnimateIn");
this.beforeAnimateInEvent.signature = CustomEvent.LIST;
this.beforeAnimateOutEvent = this.createEvent("beforeAnimateOut");
this.beforeAnimateOutEvent.signature = CustomEvent.LIST;
this.animateInCompleteEvent = this.createEvent("animateInComplete");
this.animateInCompleteEvent.signature = CustomEvent.LIST;
this.animateOutCompleteEvent =
this.createEvent("animateOutComplete");
this.animateOutCompleteEvent.signature = CustomEvent.LIST;
this.animIn = new this.animClass(this.targetElement,
this.attrIn.attributes, this.attrIn.duration,
this.attrIn.method);
this.animIn.onStart.subscribe(this.handleStartAnimateIn, this);
this.animIn.onTween.subscribe(this.handleTweenAnimateIn, this);
this.animIn.onComplete.subscribe(this.handleCompleteAnimateIn,
this);
this.animOut = new this.animClass(this.targetElement,
this.attrOut.attributes, this.attrOut.duration,
this.attrOut.method);
this.animOut.onStart.subscribe(this.handleStartAnimateOut, this);
this.animOut.onTween.subscribe(this.handleTweenAnimateOut, this);
this.animOut.onComplete.subscribe(this.handleCompleteAnimateOut,
this);
},
/**
* Triggers the in-animation.
* @method animateIn
*/
animateIn: function () {
this.beforeAnimateInEvent.fire();
this.animIn.animate();
},
/**
* Triggers the out-animation.
* @method animateOut
*/
animateOut: function () {
this.beforeAnimateOutEvent.fire();
this.animOut.animate();
},
/**
* The default onStart handler for the in-animation.
* @method handleStartAnimateIn
* @param {String} type The CustomEvent type
* @param {Object[]} args The CustomEvent arguments
* @param {Object} obj The scope object
*/
handleStartAnimateIn: function (type, args, obj) { },
/**
* The default onTween handler for the in-animation.
* @method handleTweenAnimateIn
* @param {String} type The CustomEvent type
* @param {Object[]} args The CustomEvent arguments
* @param {Object} obj The scope object
*/
handleTweenAnimateIn: function (type, args, obj) { },
/**
* The default onComplete handler for the in-animation.
* @method handleCompleteAnimateIn
* @param {String} type The CustomEvent type
* @param {Object[]} args The CustomEvent arguments
* @param {Object} obj The scope object
*/
handleCompleteAnimateIn: function (type, args, obj) { },
/**
* The default onStart handler for the out-animation.
* @method handleStartAnimateOut
* @param {String} type The CustomEvent type
* @param {Object[]} args The CustomEvent arguments
* @param {Object} obj The scope object
*/
handleStartAnimateOut: function (type, args, obj) { },
/**
* The default onTween handler for the out-animation.
* @method handleTweenAnimateOut
* @param {String} type The CustomEvent type
* @param {Object[]} args The CustomEvent arguments
* @param {Object} obj The scope object
*/
handleTweenAnimateOut: function (type, args, obj) { },
/**
* The default onComplete handler for the out-animation.
* @method handleCompleteAnimateOut
* @param {String} type The CustomEvent type
* @param {Object[]} args The CustomEvent arguments
* @param {Object} obj The scope object
*/
handleCompleteAnimateOut: function (type, args, obj) { },
/**
* Returns a string representation of the object.
* @method toString
* @return {String} The string representation of the ContainerEffect
*/
toString: function () {
var output = "ContainerEffect";
if (this.overlay) {
output += " [" + this.overlay.toString() + "]";
}
return output;
}
};
YAHOO.lang.augmentProto(ContainerEffect, YAHOO.util.EventProvider);
})();
YAHOO.register("containercore", YAHOO.widget.Module, {version: "2.7.0", build: "1799"});
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