Sindbad~EG File Manager
/*
YUI 3.17.2 (build 9c3c78e)
Copyright 2014 Yahoo! Inc. All rights reserved.
Licensed under the BSD License.
http://yuilibrary.com/license/
*/
YUI.add('attribute-core', function (Y, NAME) {
/**
* The State class maintains state for a collection of named items, with
* a varying number of properties defined.
*
* It avoids the need to create a separate class for the item, and separate instances
* of these classes for each item, by storing the state in a 2 level hash table,
* improving performance when the number of items is likely to be large.
*
* @constructor
* @class State
*/
Y.State = function() {
/**
* Hash of attributes
* @property data
*/
this.data = {};
};
Y.State.prototype = {
/**
* Adds a property to an item.
*
* @method add
* @param name {String} The name of the item.
* @param key {String} The name of the property.
* @param val {Any} The value of the property.
*/
add: function(name, key, val) {
var item = this.data[name];
if (!item) {
item = this.data[name] = {};
}
item[key] = val;
},
/**
* Adds multiple properties to an item.
*
* @method addAll
* @param name {String} The name of the item.
* @param obj {Object} A hash of property/value pairs.
*/
addAll: function(name, obj) {
var item = this.data[name],
key;
if (!item) {
item = this.data[name] = {};
}
for (key in obj) {
if (obj.hasOwnProperty(key)) {
item[key] = obj[key];
}
}
},
/**
* Removes a property from an item.
*
* @method remove
* @param name {String} The name of the item.
* @param key {String} The property to remove.
*/
remove: function(name, key) {
var item = this.data[name];
if (item) {
delete item[key];
}
},
/**
* Removes multiple properties from an item, or removes the item completely.
*
* @method removeAll
* @param name {String} The name of the item.
* @param obj {Object|Array} Collection of properties to delete. If not provided, the entire item is removed.
*/
removeAll: function(name, obj) {
var data;
if (!obj) {
data = this.data;
if (name in data) {
delete data[name];
}
} else {
Y.each(obj, function(value, key) {
this.remove(name, typeof key === 'string' ? key : value);
}, this);
}
},
/**
* For a given item, returns the value of the property requested, or undefined if not found.
*
* @method get
* @param name {String} The name of the item
* @param key {String} Optional. The property value to retrieve.
* @return {Any} The value of the supplied property.
*/
get: function(name, key) {
var item = this.data[name];
if (item) {
return item[key];
}
},
/**
* For the given item, returns an object with all of the
* item's property/value pairs. By default the object returned
* is a shallow copy of the stored data, but passing in true
* as the second parameter will return a reference to the stored
* data.
*
* @method getAll
* @param name {String} The name of the item
* @param reference {boolean} true, if you want a reference to the stored
* object
* @return {Object} An object with property/value pairs for the item.
*/
getAll : function(name, reference) {
var item = this.data[name],
key, obj;
if (reference) {
obj = item;
} else if (item) {
obj = {};
for (key in item) {
if (item.hasOwnProperty(key)) {
obj[key] = item[key];
}
}
}
return obj;
}
};
/*For log lines*/
/*jshint maxlen:200*/
/**
* The attribute module provides an augmentable Attribute implementation, which
* adds configurable attributes and attribute change events to the class being
* augmented. It also provides a State class, which is used internally by Attribute,
* but can also be used independently to provide a name/property/value data structure to
* store state.
*
* @module attribute
*/
/**
* The attribute-core submodule provides the lightest level of attribute handling support
* without Attribute change events, or lesser used methods such as reset(), modifyAttrs(),
* and removeAttr().
*
* @module attribute
* @submodule attribute-core
*/
var O = Y.Object,
Lang = Y.Lang,
DOT = ".",
// Externally configurable props
GETTER = "getter",
SETTER = "setter",
READ_ONLY = "readOnly",
WRITE_ONCE = "writeOnce",
INIT_ONLY = "initOnly",
VALIDATOR = "validator",
VALUE = "value",
VALUE_FN = "valueFn",
LAZY_ADD = "lazyAdd",
// Used for internal state management
ADDED = "added",
BYPASS_PROXY = "_bypassProxy",
INIT_VALUE = "initValue",
LAZY = "lazy",
INVALID_VALUE;
/**
* <p>
* AttributeCore provides the lightest level of configurable attribute support. It is designed to be
* augmented on to a host class, and provides the host with the ability to configure
* attributes to store and retrieve state, <strong>but without support for attribute change events</strong>.
* </p>
* <p>For example, attributes added to the host can be configured:</p>
* <ul>
* <li>As read only.</li>
* <li>As write once.</li>
* <li>With a setter function, which can be used to manipulate
* values passed to Attribute's <a href="#method_set">set</a> method, before they are stored.</li>
* <li>With a getter function, which can be used to manipulate stored values,
* before they are returned by Attribute's <a href="#method_get">get</a> method.</li>
* <li>With a validator function, to validate values before they are stored.</li>
* </ul>
*
* <p>See the <a href="#method_addAttr">addAttr</a> method, for the complete set of configuration
* options available for attributes.</p>
*
* <p>Object/Classes based on AttributeCore can augment <a href="AttributeObservable.html">AttributeObservable</a>
* (with true for overwrite) and <a href="AttributeExtras.html">AttributeExtras</a> to add attribute event and
* additional, less commonly used attribute methods, such as `modifyAttr`, `removeAttr` and `reset`.</p>
*
* @class AttributeCore
* @param attrs {Object} The attributes to add during construction (passed through to <a href="#method_addAttrs">addAttrs</a>).
* These can also be defined on the constructor being augmented with Attribute by defining the ATTRS property on the constructor.
* @param values {Object} The initial attribute values to apply (passed through to <a href="#method_addAttrs">addAttrs</a>).
* These are not merged/cloned. The caller is responsible for isolating user provided values if required.
* @param lazy {boolean} Whether or not to add attributes lazily (passed through to <a href="#method_addAttrs">addAttrs</a>).
*/
function AttributeCore(attrs, values, lazy) {
// HACK: Fix #2531929
// Complete hack, to make sure the first clone of a node value in IE doesn't doesn't hurt state - maintains 3.4.1 behavior.
// Too late in the release cycle to do anything about the core problem.
// The root issue is that cloning a Y.Node instance results in an object which barfs in IE, when you access it's properties (since 3.3.0).
this._yuievt = null;
this._initAttrHost(attrs, values, lazy);
}
/**
* <p>The value to return from an attribute setter in order to prevent the set from going through.</p>
*
* <p>You can return this value from your setter if you wish to combine validator and setter
* functionality into a single setter function, which either returns the massaged value to be stored or
* AttributeCore.INVALID_VALUE to prevent invalid values from being stored.</p>
*
* @property INVALID_VALUE
* @type Object
* @static
* @final
*/
AttributeCore.INVALID_VALUE = {};
INVALID_VALUE = AttributeCore.INVALID_VALUE;
/**
* The list of properties which can be configured for
* each attribute (e.g. setter, getter, writeOnce etc.).
*
* This property is used internally as a whitelist for faster
* Y.mix operations.
*
* @property _ATTR_CFG
* @type Array
* @static
* @protected
*/
AttributeCore._ATTR_CFG = [SETTER, GETTER, VALIDATOR, VALUE, VALUE_FN, WRITE_ONCE, READ_ONLY, LAZY_ADD, BYPASS_PROXY];
/**
* Utility method to protect an attribute configuration hash, by merging the
* entire object and the individual attr config objects.
*
* @method protectAttrs
* @static
* @param {Object} attrs A hash of attribute to configuration object pairs.
* @return {Object} A protected version of the `attrs` argument.
*/
AttributeCore.protectAttrs = function (attrs) {
if (attrs) {
attrs = Y.merge(attrs);
for (var attr in attrs) {
if (attrs.hasOwnProperty(attr)) {
attrs[attr] = Y.merge(attrs[attr]);
}
}
}
return attrs;
};
AttributeCore.prototype = {
/**
* Constructor logic for attributes. Initializes the host state, and sets up the inital attributes passed to the
* constructor.
*
* @method _initAttrHost
* @param attrs {Object} The attributes to add during construction (passed through to <a href="#method_addAttrs">addAttrs</a>).
* These can also be defined on the constructor being augmented with Attribute by defining the ATTRS property on the constructor.
* @param values {Object} The initial attribute values to apply (passed through to <a href="#method_addAttrs">addAttrs</a>).
* These are not merged/cloned. The caller is responsible for isolating user provided values if required.
* @param lazy {boolean} Whether or not to add attributes lazily (passed through to <a href="#method_addAttrs">addAttrs</a>).
* @private
*/
_initAttrHost : function(attrs, values, lazy) {
this._state = new Y.State();
this._initAttrs(attrs, values, lazy);
},
/**
* <p>
* Adds an attribute with the provided configuration to the host object.
* </p>
* <p>
* The config argument object supports the following properties:
* </p>
*
* <dl>
* <dt>value <Any></dt>
* <dd>The initial value to set on the attribute</dd>
*
* <dt>valueFn <Function | String></dt>
* <dd>
* <p>A function, which will return the initial value to set on the attribute. This is useful
* for cases where the attribute configuration is defined statically, but needs to
* reference the host instance ("this") to obtain an initial value. If both the value and valueFn properties are defined,
* the value returned by the valueFn has precedence over the value property, unless it returns undefined, in which
* case the value property is used.</p>
*
* <p>valueFn can also be set to a string, representing the name of the instance method to be used to retrieve the value.</p>
* </dd>
*
* <dt>readOnly <boolean></dt>
* <dd>Whether or not the attribute is read only. Attributes having readOnly set to true
* cannot be modified by invoking the set method.</dd>
*
* <dt>writeOnce <boolean> or <string></dt>
* <dd>
* Whether or not the attribute is "write once". Attributes having writeOnce set to true,
* can only have their values set once, be it through the default configuration,
* constructor configuration arguments, or by invoking set.
* <p>The writeOnce attribute can also be set to the string "initOnly",
* in which case the attribute can only be set during initialization
* (when used with Base, this means it can only be set during construction)</p>
* </dd>
*
* <dt>setter <Function | String></dt>
* <dd>
* <p>The setter function used to massage or normalize the value passed to the set method for the attribute.
* The value returned by the setter will be the final stored value. Returning
* <a href="#property_Attribute.INVALID_VALUE">Attribute.INVALID_VALUE</a>, from the setter will prevent
* the value from being stored.
* </p>
*
* <p>setter can also be set to a string, representing the name of the instance method to be used as the setter function.</p>
* </dd>
*
* <dt>getter <Function | String></dt>
* <dd>
* <p>
* The getter function used to massage or normalize the value returned by the get method for the attribute.
* The value returned by the getter function is the value which will be returned to the user when they
* invoke get.
* </p>
*
* <p>getter can also be set to a string, representing the name of the instance method to be used as the getter function.</p>
* </dd>
*
* <dt>validator <Function | String></dt>
* <dd>
* <p>
* The validator function invoked prior to setting the stored value. Returning
* false from the validator function will prevent the value from being stored.
* </p>
*
* <p>validator can also be set to a string, representing the name of the instance method to be used as the validator function.</p>
* </dd>
*
* <dt>lazyAdd <boolean></dt>
* <dd>Whether or not to delay initialization of the attribute until the first call to get/set it.
* This flag can be used to over-ride lazy initialization on a per attribute basis, when adding multiple attributes through
* the <a href="#method_addAttrs">addAttrs</a> method.</dd>
*
* </dl>
*
* <p>The setter, getter and validator are invoked with the value and name passed in as the first and second arguments, and with
* the context ("this") set to the host object.</p>
*
* <p>Configuration properties outside of the list mentioned above are considered private properties used internally by attribute,
* and are not intended for public use.</p>
*
* @method addAttr
*
* @param {String} name The name of the attribute.
* @param {Object} config An object with attribute configuration property/value pairs, specifying the configuration for the attribute.
*
* <p>
* <strong>NOTE:</strong> The configuration object is modified when adding an attribute, so if you need
* to protect the original values, you will need to merge the object.
* </p>
*
* @param {boolean} lazy (optional) Whether or not to add this attribute lazily (on the first call to get/set).
*
* @return {Object} A reference to the host object.
*
* @chainable
*/
addAttr : function(name, config, lazy) {
Y.log('Adding attribute: ' + name, 'info', 'attribute');
var host = this, // help compression
state = host._state,
data = state.data,
value,
added,
hasValue;
config = config || {};
if (LAZY_ADD in config) {
lazy = config[LAZY_ADD];
}
added = state.get(name, ADDED);
if (lazy && !added) {
state.data[name] = {
lazy : config,
added : true
};
} else {
if (added && !config.isLazyAdd) { Y.log('Attribute: ' + name + ' already exists. Cannot add it again without removing it first', 'warn', 'attribute'); }
if (!added || config.isLazyAdd) {
hasValue = (VALUE in config);
if (config.readOnly && !hasValue) { Y.log('readOnly attribute: ' + name + ', added without an initial value. Value will be set on initial call to set', 'warn', 'attribute');}
if (hasValue) {
// We'll go through set, don't want to set value in config directly
// PERF TODO: VALIDATE: See if setting this to undefined is sufficient. We use to delete before.
// In certain code paths/use cases, undefined may not be the same as not present.
// If not, we can set it to some known fixed value (like INVALID_VALUE, say INITIALIZING_VALUE) for performance,
// to avoid a delete which seems to help a lot.
value = config.value;
config.value = undefined;
}
config.added = true;
config.initializing = true;
data[name] = config;
if (hasValue) {
// Go through set, so that raw values get normalized/validated
host.set(name, value);
}
config.initializing = false;
}
}
return host;
},
/**
* Checks if the given attribute has been added to the host
*
* @method attrAdded
* @param {String} name The name of the attribute to check.
* @return {boolean} true if an attribute with the given name has been added, false if it hasn't.
* This method will return true for lazily added attributes.
*/
attrAdded: function(name) {
return !!(this._state.get(name, ADDED));
},
/**
* Returns the current value of the attribute. If the attribute
* has been configured with a 'getter' function, this method will delegate
* to the 'getter' to obtain the value of the attribute.
*
* @method get
*
* @param {String} name The name of the attribute. If the value of the attribute is an Object,
* dot notation can be used to obtain the value of a property of the object (e.g. <code>get("x.y.z")</code>)
*
* @return {Any} The value of the attribute
*/
get : function(name) {
return this._getAttr(name);
},
/**
* Checks whether or not the attribute is one which has been
* added lazily and still requires initialization.
*
* @method _isLazyAttr
* @private
* @param {String} name The name of the attribute
* @return {boolean} true if it's a lazily added attribute, false otherwise.
*/
_isLazyAttr: function(name) {
return this._state.get(name, LAZY);
},
/**
* Finishes initializing an attribute which has been lazily added.
*
* @method _addLazyAttr
* @private
* @param {Object} name The name of the attribute
* @param {Object} [lazyCfg] Optional config hash for the attribute. This is added for performance
* along the critical path, where the calling method has already obtained lazy config from state.
*/
_addLazyAttr: function(name, lazyCfg) {
var state = this._state;
lazyCfg = lazyCfg || state.get(name, LAZY);
if (lazyCfg) {
// PERF TODO: For App's id override, otherwise wouldn't be
// needed. It expects to find it in the cfg for it's
// addAttr override. Would like to remove, once App override is
// removed.
state.data[name].lazy = undefined;
lazyCfg.isLazyAdd = true;
this.addAttr(name, lazyCfg);
}
},
/**
* Sets the value of an attribute.
*
* @method set
* @chainable
*
* @param {String} name The name of the attribute. If the
* current value of the attribute is an Object, dot notation can be used
* to set the value of a property within the object (e.g. <code>set("x.y.z", 5)</code>).
* @param {Any} value The value to set the attribute to.
* @param {Object} [opts] Optional data providing the circumstances for the change.
* @return {Object} A reference to the host object.
*/
set : function(name, val, opts) {
return this._setAttr(name, val, opts);
},
/**
* Allows setting of readOnly/writeOnce attributes. See <a href="#method_set">set</a> for argument details.
*
* @method _set
* @protected
* @chainable
*
* @param {String} name The name of the attribute.
* @param {Any} val The value to set the attribute to.
* @param {Object} [opts] Optional data providing the circumstances for the change.
* @return {Object} A reference to the host object.
*/
_set : function(name, val, opts) {
return this._setAttr(name, val, opts, true);
},
/**
* Provides the common implementation for the public set and protected _set methods.
*
* See <a href="#method_set">set</a> for argument details.
*
* @method _setAttr
* @protected
* @chainable
*
* @param {String} name The name of the attribute.
* @param {Any} value The value to set the attribute to.
* @param {Object} [opts] Optional data providing the circumstances for the change.
* @param {boolean} force If true, allows the caller to set values for
* readOnly or writeOnce attributes which have already been set.
*
* @return {Object} A reference to the host object.
*/
_setAttr : function(name, val, opts, force) {
var allowSet = true,
state = this._state,
stateProxy = this._stateProxy,
tCfgs = this._tCfgs,
cfg,
initialSet,
strPath,
path,
currVal,
writeOnce,
initializing;
if (name.indexOf(DOT) !== -1) {
strPath = name;
path = name.split(DOT);
name = path.shift();
}
// On Demand - Should be rare - handles out of order valueFn, setter, getter references
if (tCfgs && tCfgs[name]) {
this._addOutOfOrder(name, tCfgs[name]);
}
cfg = state.data[name] || {};
if (cfg.lazy) {
cfg = cfg.lazy;
this._addLazyAttr(name, cfg);
}
initialSet = (cfg.value === undefined);
if (stateProxy && name in stateProxy && !cfg._bypassProxy) {
// TODO: Value is always set for proxy. Can we do any better? Maybe take a snapshot as the initial value for the first call to set?
initialSet = false;
}
writeOnce = cfg.writeOnce;
initializing = cfg.initializing;
if (!initialSet && !force) {
if (writeOnce) {
Y.log('Set attribute:' + name + ', aborted; Attribute is writeOnce', 'warn', 'attribute');
allowSet = false;
}
if (cfg.readOnly) {
Y.log('Set attribute:' + name + ', aborted; Attribute is readOnly', 'warn', 'attribute');
allowSet = false;
}
}
if (!initializing && !force && writeOnce === INIT_ONLY) {
Y.log('Set attribute:' + name + ', aborted; Attribute is writeOnce: "initOnly"', 'warn', 'attribute');
allowSet = false;
}
if (allowSet) {
// Don't need currVal if initialSet (might fail in custom getter if it always expects a non-undefined/non-null value)
if (!initialSet) {
currVal = this.get(name);
}
if (path) {
val = O.setValue(Y.clone(currVal), path, val);
if (val === undefined) {
Y.log('Set attribute path:' + strPath + ', aborted; Path is invalid', 'warn', 'attribute');
allowSet = false;
}
}
if (allowSet) {
if (!this._fireAttrChange || initializing) {
this._setAttrVal(name, strPath, currVal, val, opts, cfg);
} else {
// HACK - no real reason core needs to know about _fireAttrChange, but
// it adds fn hops if we want to break it out. Not sure it's worth it for this critical path
this._fireAttrChange(name, strPath, currVal, val, opts, cfg);
}
}
}
return this;
},
/**
* Utility method used by get/set to add attributes
* encountered out of order when calling addAttrs().
*
* For example, if:
*
* this.addAttrs({
* foo: {
* setter: function() {
* // make sure this bar is available when foo is added
* this.get("bar");
* }
* },
* bar: {
* value: ...
* }
* });
*
* @method _addOutOfOrder
* @private
* @param name {String} attribute name
* @param cfg {Object} attribute configuration
*/
_addOutOfOrder : function(name, cfg) {
var attrs = {};
attrs[name] = cfg;
delete this._tCfgs[name];
// TODO: The original code went through addAttrs, so
// sticking with it for this pass. Seems like we could
// just jump straight to _addAttr() and get some perf
// improvement.
this._addAttrs(attrs, this._tVals);
},
/**
* Provides the common implementation for the public get method,
* allowing Attribute hosts to over-ride either method.
*
* See <a href="#method_get">get</a> for argument details.
*
* @method _getAttr
* @protected
* @chainable
*
* @param {String} name The name of the attribute.
* @return {Any} The value of the attribute.
*/
_getAttr : function(name) {
var fullName = name,
tCfgs = this._tCfgs,
path,
getter,
val,
attrCfg;
if (name.indexOf(DOT) !== -1) {
path = name.split(DOT);
name = path.shift();
}
// On Demand - Should be rare - handles out of
// order valueFn, setter, getter references
if (tCfgs && tCfgs[name]) {
this._addOutOfOrder(name, tCfgs[name]);
}
attrCfg = this._state.data[name] || {};
// Lazy Init
if (attrCfg.lazy) {
attrCfg = attrCfg.lazy;
this._addLazyAttr(name, attrCfg);
}
val = this._getStateVal(name, attrCfg);
getter = attrCfg.getter;
if (getter && !getter.call) {
getter = this[getter];
}
val = (getter) ? getter.call(this, val, fullName) : val;
val = (path) ? O.getValue(val, path) : val;
return val;
},
/**
* Gets the stored value for the attribute, from either the
* internal state object, or the state proxy if it exits
*
* @method _getStateVal
* @private
* @param {String} name The name of the attribute
* @param {Object} [cfg] Optional config hash for the attribute. This is added for performance along the critical path,
* where the calling method has already obtained the config from state.
*
* @return {Any} The stored value of the attribute
*/
_getStateVal : function(name, cfg) {
var stateProxy = this._stateProxy;
if (!cfg) {
cfg = this._state.getAll(name) || {};
}
return (stateProxy && (name in stateProxy) && !(cfg._bypassProxy)) ? stateProxy[name] : cfg.value;
},
/**
* Sets the stored value for the attribute, in either the
* internal state object, or the state proxy if it exits
*
* @method _setStateVal
* @private
* @param {String} name The name of the attribute
* @param {Any} value The value of the attribute
*/
_setStateVal : function(name, value) {
var stateProxy = this._stateProxy;
if (stateProxy && (name in stateProxy) && !this._state.get(name, BYPASS_PROXY)) {
stateProxy[name] = value;
} else {
this._state.add(name, VALUE, value);
}
},
/**
* Updates the stored value of the attribute in the privately held State object,
* if validation and setter passes.
*
* @method _setAttrVal
* @private
* @param {String} attrName The attribute name.
* @param {String} subAttrName The sub-attribute name, if setting a sub-attribute property ("x.y.z").
* @param {Any} prevVal The currently stored value of the attribute.
* @param {Any} newVal The value which is going to be stored.
* @param {Object} [opts] Optional data providing the circumstances for the change.
* @param {Object} [attrCfg] Optional config hash for the attribute. This is added for performance along the critical path,
* where the calling method has already obtained the config from state.
*
* @return {Boolean} true if the new attribute value was stored, false if not.
*/
_setAttrVal : function(attrName, subAttrName, prevVal, newVal, opts, attrCfg) {
var host = this,
allowSet = true,
cfg = attrCfg || this._state.data[attrName] || {},
validator = cfg.validator,
setter = cfg.setter,
initializing = cfg.initializing,
prevRawVal = this._getStateVal(attrName, cfg),
name = subAttrName || attrName,
retVal,
valid;
if (validator) {
if (!validator.call) {
// Assume string - trying to keep critical path tight, so avoiding Lang check
validator = this[validator];
}
if (validator) {
valid = validator.call(host, newVal, name, opts);
if (!valid && initializing) {
newVal = cfg.defaultValue;
valid = true; // Assume it's valid, for perf.
}
}
}
if (!validator || valid) {
if (setter) {
if (!setter.call) {
// Assume string - trying to keep critical path tight, so avoiding Lang check
setter = this[setter];
}
if (setter) {
retVal = setter.call(host, newVal, name, opts);
if (retVal === INVALID_VALUE) {
if (initializing) {
Y.log('Attribute: ' + attrName + ', setter returned Attribute.INVALID_VALUE for value:' + newVal + ', initializing to default value', 'warn', 'attribute');
newVal = cfg.defaultValue;
} else {
Y.log('Attribute: ' + attrName + ', setter returned Attribute.INVALID_VALUE for value:' + newVal, 'warn', 'attribute');
allowSet = false;
}
} else if (retVal !== undefined){
Y.log('Attribute: ' + attrName + ', raw value: ' + newVal + ' modified by setter to:' + retVal, 'info', 'attribute');
newVal = retVal;
}
}
}
if (allowSet) {
if(!subAttrName && (newVal === prevRawVal) && !Lang.isObject(newVal)) {
Y.log('Attribute: ' + attrName + ', value unchanged:' + newVal, 'warn', 'attribute');
allowSet = false;
} else {
// Store value
if (!(INIT_VALUE in cfg)) {
cfg.initValue = newVal;
}
host._setStateVal(attrName, newVal);
}
}
} else {
Y.log('Attribute:' + attrName + ', Validation failed for value:' + newVal, 'warn', 'attribute');
allowSet = false;
}
return allowSet;
},
/**
* Sets multiple attribute values.
*
* @method setAttrs
* @param {Object} attrs An object with attributes name/value pairs.
* @param {Object} [opts] Optional data providing the circumstances for the change.
* @return {Object} A reference to the host object.
* @chainable
*/
setAttrs : function(attrs, opts) {
return this._setAttrs(attrs, opts);
},
/**
* Implementation behind the public setAttrs method, to set multiple attribute values.
*
* @method _setAttrs
* @protected
* @param {Object} attrs An object with attributes name/value pairs.
* @param {Object} [opts] Optional data providing the circumstances for the change
* @return {Object} A reference to the host object.
* @chainable
*/
_setAttrs : function(attrs, opts) {
var attr;
for (attr in attrs) {
if ( attrs.hasOwnProperty(attr) ) {
this.set(attr, attrs[attr], opts);
}
}
return this;
},
/**
* Gets multiple attribute values.
*
* @method getAttrs
* @param {String[]|Boolean} attrs Optional. An array of attribute names. If omitted, all attribute values are
* returned. If set to true, all attributes modified from their initial values are returned.
* @return {Object} An object with attribute name/value pairs.
*/
getAttrs : function(attrs) {
return this._getAttrs(attrs);
},
/**
* Implementation behind the public getAttrs method, to get multiple attribute values.
*
* @method _getAttrs
* @protected
* @param {String[]|Boolean} attrs Optional. An array of attribute names. If omitted, all attribute values are
* returned. If set to true, all attributes modified from their initial values are returned.
* @return {Object} An object with attribute name/value pairs.
*/
_getAttrs : function(attrs) {
var obj = {},
attr, i, len,
modifiedOnly = (attrs === true);
// TODO - figure out how to get all "added"
if (!attrs || modifiedOnly) {
attrs = O.keys(this._state.data);
}
for (i = 0, len = attrs.length; i < len; i++) {
attr = attrs[i];
if (!modifiedOnly || this._getStateVal(attr) != this._state.get(attr, INIT_VALUE)) {
// Go through get, to honor cloning/normalization
obj[attr] = this.get(attr);
}
}
return obj;
},
/**
* Configures a group of attributes, and sets initial values.
*
* <p>
* <strong>NOTE:</strong> This method does not isolate the configuration object by merging/cloning.
* The caller is responsible for merging/cloning the configuration object if required.
* </p>
*
* @method addAttrs
* @chainable
*
* @param {Object} cfgs An object with attribute name/configuration pairs.
* @param {Object} values An object with attribute name/value pairs, defining the initial values to apply.
* Values defined in the cfgs argument will be over-written by values in this argument unless defined as read only.
* @param {boolean} lazy Whether or not to delay the intialization of these attributes until the first call to get/set.
* Individual attributes can over-ride this behavior by defining a lazyAdd configuration property in their configuration.
* See <a href="#method_addAttr">addAttr</a>.
*
* @return {Object} A reference to the host object.
*/
addAttrs : function(cfgs, values, lazy) {
if (cfgs) {
this._tCfgs = cfgs;
this._tVals = (values) ? this._normAttrVals(values) : null;
this._addAttrs(cfgs, this._tVals, lazy);
this._tCfgs = this._tVals = null;
}
return this;
},
/**
* Implementation behind the public addAttrs method.
*
* This method is invoked directly by get if it encounters a scenario
* in which an attribute's valueFn attempts to obtain the
* value an attribute in the same group of attributes, which has not yet
* been added (on demand initialization).
*
* @method _addAttrs
* @private
* @param {Object} cfgs An object with attribute name/configuration pairs.
* @param {Object} values An object with attribute name/value pairs, defining the initial values to apply.
* Values defined in the cfgs argument will be over-written by values in this argument unless defined as read only.
* @param {boolean} lazy Whether or not to delay the intialization of these attributes until the first call to get/set.
* Individual attributes can over-ride this behavior by defining a lazyAdd configuration property in their configuration.
* See <a href="#method_addAttr">addAttr</a>.
*/
_addAttrs : function(cfgs, values, lazy) {
var tCfgs = this._tCfgs,
tVals = this._tVals,
attr,
attrCfg,
value;
for (attr in cfgs) {
if (cfgs.hasOwnProperty(attr)) {
// Not Merging. Caller is responsible for isolating configs
attrCfg = cfgs[attr];
attrCfg.defaultValue = attrCfg.value;
// Handle simple, complex and user values, accounting for read-only
value = this._getAttrInitVal(attr, attrCfg, tVals);
if (value !== undefined) {
attrCfg.value = value;
}
if (tCfgs[attr]) {
tCfgs[attr] = undefined;
}
this.addAttr(attr, attrCfg, lazy);
}
}
},
/**
* Utility method to protect an attribute configuration
* hash, by merging the entire object and the individual
* attr config objects.
*
* @method _protectAttrs
* @protected
* @param {Object} attrs A hash of attribute to configuration object pairs.
* @return {Object} A protected version of the attrs argument.
* @deprecated Use `AttributeCore.protectAttrs()` or
* `Attribute.protectAttrs()` which are the same static utility method.
*/
_protectAttrs : AttributeCore.protectAttrs,
/**
* Utility method to normalize attribute values. The base implementation
* simply merges the hash to protect the original.
*
* @method _normAttrVals
* @param {Object} valueHash An object with attribute name/value pairs
*
* @return {Object} An object literal with 2 properties - "simple" and "complex",
* containing simple and complex attribute values respectively keyed
* by the top level attribute name, or null, if valueHash is falsey.
*
* @private
*/
_normAttrVals : function(valueHash) {
var vals,
subvals,
path,
attr,
v, k;
if (!valueHash) {
return null;
}
vals = {};
for (k in valueHash) {
if (valueHash.hasOwnProperty(k)) {
if (k.indexOf(DOT) !== -1) {
path = k.split(DOT);
attr = path.shift();
subvals = subvals || {};
v = subvals[attr] = subvals[attr] || [];
v[v.length] = {
path : path,
value: valueHash[k]
};
} else {
vals[k] = valueHash[k];
}
}
}
return { simple:vals, complex:subvals };
},
/**
* Returns the initial value of the given attribute from
* either the default configuration provided, or the
* over-ridden value if it exists in the set of initValues
* provided and the attribute is not read-only.
*
* @param {String} attr The name of the attribute
* @param {Object} cfg The attribute configuration object
* @param {Object} initValues The object with simple and complex attribute name/value pairs returned from _normAttrVals
*
* @return {Any} The initial value of the attribute.
*
* @method _getAttrInitVal
* @private
*/
_getAttrInitVal : function(attr, cfg, initValues) {
var val = cfg.value,
valFn = cfg.valueFn,
tmpVal,
initValSet = false,
readOnly = cfg.readOnly,
simple,
complex,
i,
l,
path,
subval,
subvals;
if (!readOnly && initValues) {
// Simple Attributes
simple = initValues.simple;
if (simple && simple.hasOwnProperty(attr)) {
val = simple[attr];
initValSet = true;
}
}
if (valFn && !initValSet) {
if (!valFn.call) {
valFn = this[valFn];
}
if (valFn) {
tmpVal = valFn.call(this, attr);
val = tmpVal;
}
}
if (!readOnly && initValues) {
// Complex Attributes (complex values applied, after simple, in case both are set)
complex = initValues.complex;
if (complex && complex.hasOwnProperty(attr) && (val !== undefined) && (val !== null)) {
subvals = complex[attr];
for (i = 0, l = subvals.length; i < l; ++i) {
path = subvals[i].path;
subval = subvals[i].value;
O.setValue(val, path, subval);
}
}
}
return val;
},
/**
* Utility method to set up initial attributes defined during construction,
* either through the constructor.ATTRS property, or explicitly passed in.
*
* @method _initAttrs
* @protected
* @param attrs {Object} The attributes to add during construction (passed through to <a href="#method_addAttrs">addAttrs</a>).
* These can also be defined on the constructor being augmented with Attribute by defining the ATTRS property on the constructor.
* @param values {Object} The initial attribute values to apply (passed through to <a href="#method_addAttrs">addAttrs</a>).
* These are not merged/cloned. The caller is responsible for isolating user provided values if required.
* @param lazy {boolean} Whether or not to add attributes lazily (passed through to <a href="#method_addAttrs">addAttrs</a>).
*/
_initAttrs : function(attrs, values, lazy) {
// ATTRS support for Node, which is not Base based
attrs = attrs || this.constructor.ATTRS;
var Base = Y.Base,
BaseCore = Y.BaseCore,
baseInst = (Base && Y.instanceOf(this, Base)),
baseCoreInst = (!baseInst && BaseCore && Y.instanceOf(this, BaseCore));
if (attrs && !baseInst && !baseCoreInst) {
this.addAttrs(Y.AttributeCore.protectAttrs(attrs), values, lazy);
}
}
};
Y.AttributeCore = AttributeCore;
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Sindbad File Manager Version 1.0, Coded By Sindbad EG ~ The Terrorists