Instance Methods
This method applies a versioned, deprecation declaration to this class. This
is typically called by the deprecated config.
Overridden and disabled. A DDTarget does not support being dragged.
Overridden and disabled. A DDTarget does not support being dragged.
Overridden and disabled. A DDTarget does not support being dragged.
Adds this instance to a group of related drag/drop objects. All
instances belong to at least one group, and can belong to as many
groups as needed.
Applies the configuration parameters that were passed into the constructor.
This is supposed to happen at each level through the inheritance chain. So
a DDProxy implentation will execute apply config on DDProxy, DD, and
DragDrop in order to get all of the parameters that are available in
each object.
Code that executes immediately before the onDrag event
Code that executes immediately before the onDragDrop event
Code that executes immediately before the onDragOut event
Code that executes immediately before the onDragOver event
Code that executes immediately before the endDrag event
Code executed immediately before the onMouseDown event
Code that executes immediately before the startDrag event
Call the original method that was previously overridden with Ext.Base#override
Ext.define('My.Cat', {
constructor: function() {
alert("I'm a cat!");
}
});
My.Cat.override({
constructor: function() {
alert("I'm going to be a cat!");
this.callOverridden();
alert("Meeeeoooowwww");
}
});
var kitty = new My.Cat(); // alerts "I'm going to be a cat!"
// alerts "I'm a cat!"
// alerts "Meeeeoooowwww"
args :
Array/Arguments
The arguments, either an array or the arguments object
from the current method, for example: this.callOverridden(arguments)
:
Object
Returns the result of calling the overridden method
Deprecated since version 4.1.0
Use method-callParent instead.
Call the "parent" method of the current method. That is the method previously
overridden by derivation or by an override (see Ext#define).
Ext.define('My.Base', {
constructor: function (x) {
this.x = x;
},
statics: {
method: function (x) {
return x;
}
}
});
Ext.define('My.Derived', {
extend: 'My.Base',
constructor: function () {
this.callParent([21]);
}
});
var obj = new My.Derived();
alert(obj.x); // alerts 21
This can be used with an override as follows:
Ext.define('My.DerivedOverride', {
override: 'My.Derived',
constructor: function (x) {
this.callParent([x*2]); // calls original My.Derived constructor
}
});
var obj = new My.Derived();
alert(obj.x); // now alerts 42
This also works with static and private methods.
Ext.define('My.Derived2', {
extend: 'My.Base',
// privates: {
statics: {
method: function (x) {
return this.callParent([x*2]); // calls My.Base.method
}
}
});
alert(My.Base.method(10)); // alerts 10
alert(My.Derived2.method(10)); // alerts 20
Lastly, it also works with overridden static methods.
Ext.define('My.Derived2Override', {
override: 'My.Derived2',
// privates: {
statics: {
method: function (x) {
return this.callParent([x*2]); // calls My.Derived2.method
}
}
});
alert(My.Derived2.method(10); // now alerts 40
To override a method and replace it and also call the superclass method, use
method-callSuper. This is often done to patch a method to fix a bug.
args :
Array/Arguments
The arguments, either an array or the arguments object
from the current method, for example: this.callParent(arguments)
:
Object
Returns the result of calling the parent method
This method is used by an override to call the superclass method but
bypass any overridden method. This is often done to "patch" a method that
contains a bug but for whatever reason cannot be fixed directly.
Consider:
Ext.define('Ext.some.Class', {
method: function () {
console.log('Good');
}
});
Ext.define('Ext.some.DerivedClass', {
extend: 'Ext.some.Class',
method: function () {
console.log('Bad');
// ... logic but with a bug ...
this.callParent();
}
});
To patch the bug in Ext.some.DerivedClass.method, the typical solution is to create an
override:
Ext.define('App.patches.DerivedClass', {
override: 'Ext.some.DerivedClass',
method: function () {
console.log('Fixed');
// ... logic but with bug fixed ...
this.callSuper();
}
});
The patch method cannot use method-callParent to call the superclass
method since that would call the overridden method containing the bug. In
other words, the above patch would only produce "Fixed" then "Good" in the
console log, whereas, using callParent would produce "Fixed" then "Bad"
then "Good".
args :
Array/Arguments
The arguments, either an array or the arguments object
from the current method, for example: this.callSuper(arguments)
:
Object
Returns the result of calling the superclass method
Overridden and disabled. A DDTarget does not support being dragged.
Overridden and disabled. A DDTarget does not support being dragged.
Initializes the drag drop object's constraints to restrict movement to a certain element.
Usage:
var dd = new Ext.dd.DDProxy("dragDiv1", "proxytest",
{ dragElId: "existingProxyDiv" });
dd.startDrag = function(){
this.constrainTo("parent-id");
};
Or you can initalize it using the Ext.dom.Element object:
Ext.get("dragDiv1").initDDProxy("proxytest", {dragElId: "existingProxyDiv"}, {
startDrag : function(){
this.constrainTo("parent-id");
}
});
constrainTo :
String/HTMLElement/Ext.dom.Element
The element or element ID to constrain to.
pad :
Object/Number
(optional)
Pad provides a way to specify "padding" of the constraints,
and can be either a number for symmetrical padding (4 would be equal to {left:4, right:4, top:4, bottom:4}) or
an object containing the sides to pad. For example: {right:10, bottom:10}
inContent :
Boolean
(optional)
Constrain the draggable in the content box of the element (inside padding and borders)
Creates new DDTarget.
id :
String
the id of the element that is a drop target
sGroup :
String
the group of related DragDrop objects
config :
Object
an object containing configurable attributes.
Valid properties for DDTarget in addition to those in DragDrop: none.
This method is called to cleanup an object and its resources. After calling
this method, the object should not be used any further in any way, including
access to its methods and properties.
To prevent potential memory leaks, all object references will be nulled
at the end of destruction sequence, unless clearPropertiesOnDestroy
is set to false.
Destroys member properties by name.
If a property name is the name of a config, the getter is not invoked, so
if the config has not been initialized, nothing will be done.
The property will be destroyed, and the corrected name (if the property is a config
and config names are prefixed) will set to null in this object's dictionary.
args :
String...
One or more names of the properties to destroy and remove from the object.
Overridden and disabled. A DDTarget does not support being dragged.
Returns a specified config property value. If the name parameter is not passed,
all current configuration options will be returned as key value pairs.
name :
String
(optional)
The name of the config property to get.
peek :
Boolean
(optional)
true to peek at the raw value without calling the getter.
Defaults to: false
ifInitialized :
Boolean
(optional)
true to only return the initialized property value,
not the raw config value, and not to trigger initialization. Returns undefined if the
property has not yet been initialized.
Defaults to: false
:
Object
The config property value.
Overridden and disabled. A DDTarget does not support being dragged.
Returns a reference to the linked element
:
HTMLElement
Returns the initial configuration passed to the constructor when
instantiating this class.
Given this example Ext.button.Button definition and instance:
Ext.define('MyApp.view.Button', {
extend: 'Ext.button.Button',
xtype: 'mybutton',
scale: 'large',
enableToggle: true
});
var btn = Ext.create({
xtype: 'mybutton',
renderTo: Ext.getBody(),
text: 'Test Button'
});
Calling btn.getInitialConfig() would return an object including the config
options passed to the create method:
xtype: 'mybutton',
renderTo: // The document body itself
text: 'Test Button'
Calling btn.getInitialConfig('text')returns 'Test Button'.
name :
String
(optional)
Name of the config option to return.
:
Object/Mixed
The full config object or a single config value
when name parameter specified.
Normally the drag element is moved pixel by pixel, but we can specify
that it move a number of pixels at a time. This method resolves the
location when we have it set up like this.
val :
Number
where we want to place the object
tickArray :
Number[]
sorted array of valid points
:
Number
Called when this object is clicked
oDD :
Ext.dd.DragDrop
the clicked dd object (this dd obj)
Executed when the linked element is available
Sets up the DragDrop object. Must be called in the constructor of any
Ext.dd.DragDrop subclass
id :
String
the id of the linked element
sGroup :
String
the group of related items
Initialize configuration for this class. a typical example:
Ext.define('My.awesome.Class', {
// The default config
config: {
name: 'Awesome',
isAwesome: true
},
constructor: function(config) {
this.initConfig(config);
}
});
var awesome = new My.awesome.Class({
name: 'Super Awesome'
});
alert(awesome.getName()); // 'Super Awesome'
:
Ext.Base
Initializes Targeting functionality only... the object does not
get a mousedown handler.
id :
String
the id of the linked element
sGroup :
String
the group of related items
Returns true if this instance is locked, or the drag drop mgr is locked
(meaning that all drag/drop is disabled on the page.)
:
Boolean
true if this obj or all drag/drop is locked, else
false
Overridden and disabled. A DDTarget does not support being dragged.
Adds a "destroyable" object to an internal list of objects that will be destroyed
when this instance is destroyed (via destroy).
:
Object
Override the onAvailable method to do what is needed after the initial
position was determined.
Overridden and disabled. A DDTarget does not support being dragged.
Overridden and disabled. A DDTarget does not support being dragged.
Overridden and disabled. A DDTarget does not support being dragged.
Overridden and disabled. A DDTarget does not support being dragged.
Overridden and disabled. A DDTarget does not support being dragged.
Overridden and disabled. A DDTarget does not support being dragged.
Overridden and disabled. A DDTarget does not support being dragged.
Overridden and disabled. A DDTarget does not support being dragged.
Removes this instance from the supplied interaction group
Overridden and disabled. A DDTarget does not support being dragged.
Overridden and disabled. A DDTarget does not support being dragged.
Overridden and disabled. A DDTarget does not support being dragged.
Overridden and disabled. A DDTarget does not support being dragged.
Sets a single/multiple configuration options.
name :
String/Object
The name of the property to set, or a set of key value pairs to set.
value :
Object
(optional)
The value to set for the name parameter.
:
Ext.Base
Overridden and disabled. A DDTarget does not support being dragged.
Overridden and disabled. A DDTarget does not support being dragged.
Overridden and disabled. A DDTarget does not support being dragged.
Overridden and disabled. A DDTarget does not support being dragged.
Configures the padding for the target zone in px. Effectively expands
(or reduces) the virtual object size for targeting calculations.
Supports css-style shorthand; if only one parameter is passed, all sides
will have that padding, and if only two are passed, the top and bottom
will have the first param, the left and right the second.
Sets the start position of the element. This is set when the obj
is initialized, the reset when a drag is started.
pos :
Object
current position (from previous lookup)
Overridden and disabled. A DDTarget does not support being dragged.
Creates the array of horizontal tick marks if an interval was specified
in setXConstraint().
Overridden and disabled. A DDTarget does not support being dragged.
Creates the array of vertical tick marks if an interval was specified in
setYConstraint().
Overridden and disabled. A DDTarget does not support being dragged.
Get the reference to the class from which this object was instantiated. Note that unlike Ext.Base#self,
this.statics() is scope-independent and it always returns the class from which it was called, regardless of what
this points to during run-time
Ext.define('My.Cat', {
statics: {
totalCreated: 0,
speciesName: 'Cat' // My.Cat.speciesName = 'Cat'
},
constructor: function() {
var statics = this.statics();
alert(statics.speciesName); // always equals to 'Cat' no matter what 'this' refers to
// equivalent to: My.Cat.speciesName
alert(this.self.speciesName); // dependent on 'this'
statics.totalCreated++;
},
clone: function() {
var cloned = new this.self(); // dependent on 'this'
cloned.groupName = this.statics().speciesName; // equivalent to: My.Cat.speciesName
return cloned;
}
});
Ext.define('My.SnowLeopard', {
extend: 'My.Cat',
statics: {
speciesName: 'Snow Leopard' // My.SnowLeopard.speciesName = 'Snow Leopard'
},
constructor: function() {
this.callParent();
}
});
var cat = new My.Cat(); // alerts 'Cat', then alerts 'Cat'
var snowLeopard = new My.SnowLeopard(); // alerts 'Cat', then alerts 'Snow Leopard'
var clone = snowLeopard.clone();
alert(Ext.getClassName(clone)); // alerts 'My.SnowLeopard'
alert(clone.groupName); // alerts 'Cat'
alert(My.Cat.totalCreated); // alerts 3
:
Ext.Class
toString method
:
String
string representation of the dd obj
Destroys a given set of linked objects. This is only needed if
the linked object is being destroyed before this instance.
names :
String[]
The names of the linked objects to destroy.
:
Ext.Base
Removes all drag and drop hooks for this element
Static Methods
Adds new config properties to this class. This is called for classes when they
are declared, then for any mixins that class may define and finally for any
overrides defined that target the class.
mixinClass :
Ext.Class
(optional)
The mixin class if the configs are from a mixin.
Add methods / properties to the prototype of this class.
Ext.define('My.awesome.Cat', {
constructor: function() {
...
}
});
My.awesome.Cat.addMembers({
meow: function() {
alert('Meowww...');
}
});
var kitty = new My.awesome.Cat();
kitty.meow();
members :
Object
The members to add to this class.
isStatic :
Boolean
(optional)
Pass true if the members are static.
Defaults to: false
privacy :
Boolean
(optional)
Pass true if the members are private. This
only has meaning in debug mode and only for methods.
Defaults to: false
:
Add / override static properties of this class.
Ext.define('My.cool.Class', {
...
});
My.cool.Class.addStatics({
someProperty: 'someValue', // My.cool.Class.someProperty = 'someValue'
method1: function() { ... }, // My.cool.Class.method1 = function() { ... };
method2: function() { ... } // My.cool.Class.method2 = function() { ... };
});
:
Ext.Base
Borrow another class' members to the prototype of this class.
Ext.define('Bank', {
money: '$$$',
printMoney: function() {
alert('$$$$$$$');
}
});
Ext.define('Thief', {
...
});
Thief.borrow(Bank, ['money', 'printMoney']);
var steve = new Thief();
alert(steve.money); // alerts '$$$'
steve.printMoney(); // alerts '$$$$$$$'
fromClass :
Ext.Base
The class to borrow members from
members :
Array/String
The names of the members to borrow
:
Ext.Base
Create a new instance of this Class.
Ext.define('My.cool.Class', {
...
});
My.cool.Class.create({
someConfig: true
});
All parameters are passed to the constructor of the class.
:
Object
Create aliases for existing prototype methods. Example:
Ext.define('My.cool.Class', {
method1: function() { ... },
method2: function() { ... }
});
var test = new My.cool.Class();
My.cool.Class.createAlias({
method3: 'method1',
method4: 'method2'
});
test.method3(); // test.method1()
My.cool.Class.createAlias('method5', 'method3');
test.method5(); // test.method3() -> test.method1()
alias :
String/Object
The new method name, or an object to set multiple aliases. See
flexSetter
Get the current class' name in string format.
Ext.define('My.cool.Class', {
constructor: function() {
alert(this.self.getName()); // alerts 'My.cool.Class'
}
});
My.cool.Class.getName(); // 'My.cool.Class'
:
String
Used internally by the mixins pre-processor
:
Override members of this class. Overridden methods can be invoked via
callParent.
Ext.define('My.Cat', {
constructor: function() {
alert("I'm a cat!");
}
});
My.Cat.override({
constructor: function() {
alert("I'm going to be a cat!");
this.callParent(arguments);
alert("Meeeeoooowwww");
}
});
var kitty = new My.Cat(); // alerts "I'm going to be a cat!"
// alerts "I'm a cat!"
// alerts "Meeeeoooowwww"
Direct use of this method should be rare. Use Ext.define
instead:
Ext.define('My.CatOverride', {
override: 'My.Cat',
constructor: function() {
alert("I'm going to be a cat!");
this.callParent(arguments);
alert("Meeeeoooowwww");
}
});
The above accomplishes the same result but can be managed by the Ext.Loader
which can properly order the override and its target class and the build process
can determine whether the override is needed based on the required state of the
target class (My.Cat).
members :
Object
The properties to add to this class. This should be
specified as an object literal containing one or more properties.
:
Ext.Base
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