Ext.fx.easing.BoundMomentum

Hierarchy

Ext.Base
Ext.fx.easing.Abstract
Ext.fx.easing.BoundMomentum

Requires

Files

NOTE: This is a private utility class for internal use by the framework. Don't rely on its existence.

This easing is typically used for Ext.scroll.Scroller. It's a combination of Ext.fx.easing.Momentum and Ext.fx.easing.Bounce, which emulates deceleration when the animated element is still within its boundary, then bouncing back (snapping) when it's out-of-bound.

Defined By

Config options

Ext.fx.easing.BoundMomentum
view source
: Object

A valid config object for Ext.fx.easing.Bounce

A valid config object for Ext.fx.easing.Bounce

Ext.fx.easing.BoundMomentum
view source
: Numberprivate
...

Defaults to: 0

Ext.fx.easing.BoundMomentum
view source
: Numberprivate
...

Defaults to: 0

Ext.fx.easing.BoundMomentum
view source
: Number
The minimum velocity to end this easing ...

The minimum velocity to end this easing

Defaults to: 0.01

Ext.fx.easing.BoundMomentum
view source
: Object

A valid config object for Ext.fx.easing.Momentum

A valid config object for Ext.fx.easing.Momentum

Ext.fx.easing.BoundMomentum
view source
: Number
The start velocity ...

The start velocity

Defaults to: 0

Properties

Defined By

Instance properties

...

Defaults to: true

...

Defaults to: false

Get the reference to the current class from which this object was instantiated. ...

Get the reference to the current class from which this object was instantiated. Unlike statics, this.self is scope-dependent and it's meant to be used for dynamic inheritance. See statics for a detailed comparison

Ext.define('My.Cat', {
    statics: {
        speciesName: 'Cat' // My.Cat.speciesName = 'Cat'
    },

    constructor: function() {
        alert(this.self.speciesName); // dependent on 'this'
    },

    clone: function() {
        return new this.self();
    }
});


Ext.define('My.SnowLeopard', {
    extend: 'My.Cat',
    statics: {
        speciesName: 'Snow Leopard'         // My.SnowLeopard.speciesName = 'Snow Leopard'
    }
});

var cat = new My.Cat();                     // alerts 'Cat'
var snowLeopard = new My.SnowLeopard();     // alerts 'Snow Leopard'

var clone = snowLeopard.clone();
alert(Ext.getClassName(clone));             // alerts 'My.SnowLeopard'
Defined By

Static properties

...

Defaults to: []

Methods

Defined By

Instance methods

Ext.fx.easing.BoundMomentum
view source
( config, currentEasing )private
...

Parameters

Ext.fx.easing.BoundMomentum
view source
( config, currentEasing )private
...

Parameters

...

Parameters

Call the original method that was previously overridden with override, This method is deprecated as callParent does ...

Call the original method that was previously overridden with override,

This method is deprecated as callParent does the same thing.

Ext.define('My.Cat', {
    constructor: function() {
        alert("I'm a cat!");
    }
});

My.Cat.override({
    constructor: function() {
        alert("I'm going to be a cat!");

        var instance = this.callOverridden();

        alert("Meeeeoooowwww");

        return instance;
    }
});

var kitty = new My.Cat(); // alerts "I'm going to be a cat!"
                          // alerts "I'm a cat!"
                          // alerts "Meeeeoooowwww"

Parameters

  • args : Array/Arguments

    The arguments, either an array or the arguments object from the current method, for example: this.callOverridden(arguments)

Returns

  • Object

    Returns the result of calling the overridden method

Call the "parent" method of the current method. ...

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 methods.

 Ext.define('My.Derived2', {
     extend: 'My.Base',

     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',

     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 callSuper. This is often done to patch a method to fix a bug.

Parameters

  • args : Array/Arguments

    The arguments, either an array or the arguments object from the current method, for example: this.callParent(arguments)

Returns

  • 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 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', {
     method: function () {
         console.log('Bad');

         // ... logic but with a bug ...

         this.callParent();
     }
 });

To patch the bug in DerivedClass.method, the typical solution is to create an override:

 Ext.define('App.paches.DerivedClass', {
     override: 'Ext.some.DerivedClass',

     method: function () {
         console.log('Fixed');

         // ... logic but with bug fixed ...

         this.callSuper();
     }
 });

The patch method cannot use 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".

Parameters

  • args : Array/Arguments

    The arguments, either an array or the arguments object from the current method, for example: this.callSuper(arguments)

Returns

  • Object

    Returns the result of calling the superclass method

Ext.fx.easing.BoundMomentum
view source
( ) : Object
Returns the value of bounce. ...

Returns the value of bounce.

Returns

...

Parameters

Returns the initial configuration passed to constructor. ...

Returns the initial configuration passed to constructor.

Parameters

  • name : String (optional)

    When supplied, value for particular configuration option is returned, otherwise the full config object is returned.

Returns

Ext.fx.easing.BoundMomentum
view source
( ) : Number
Returns the value of maxMomentumValue. ...

Returns the value of maxMomentumValue.

Returns

Ext.fx.easing.BoundMomentum
view source
( ) : Number
Returns the value of minMomentumValue. ...

Returns the value of minMomentumValue.

Returns

Ext.fx.easing.BoundMomentum
view source
( ) : Number
Returns the value of minVelocity. ...

Returns the value of minVelocity.

Returns

Ext.fx.easing.BoundMomentum
view source
( ) : Object
Returns the value of momentum. ...

Returns the value of momentum.

Returns

Returns the value of startTime. ...

Returns the value of startTime.

Returns

Returns the value of startValue. ...

Returns the value of startValue.

Returns

Ext.fx.easing.BoundMomentum
view source
( ) : Number
Returns the value of startVelocity. ...

Returns the value of startVelocity.

Returns

Ext.fx.easing.BoundMomentum
view source
( )private
...
...

Parameters

( instanceConfig ) : Objectchainableprotected
Initialize configuration for this class. ...

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'

Parameters

Returns

  • Object

    mixins The mixin prototypes as key - value pairs

Fires

    ( names, callback, scope )private
    ...

    Parameters

    Ext.fx.easing.BoundMomentum
    view source
    ( )private
    ...
    Ext.fx.easing.BoundMomentum
    view source
    ( bounce )
    Sets the value of bounce. ...

    Sets the value of bounce.

    Parameters

    ( config, applyIfNotSet ) : Ext.Basechainableprivate
    ...

    Parameters

    Returns

    Ext.fx.easing.BoundMomentum
    view source
    ( maxMomentumValue )
    Sets the value of maxMomentumValue. ...

    Sets the value of maxMomentumValue.

    Parameters

    Ext.fx.easing.BoundMomentum
    view source
    ( minMomentumValue )
    Sets the value of minMomentumValue. ...

    Sets the value of minMomentumValue.

    Parameters

    Ext.fx.easing.BoundMomentum
    view source
    ( minVelocity )
    Sets the value of minVelocity. ...

    Sets the value of minVelocity.

    Parameters

    Ext.fx.easing.BoundMomentum
    view source
    ( momentum )
    Sets the value of momentum. ...

    Sets the value of momentum.

    Parameters

    Sets the value of startTime. ...

    Sets the value of startTime.

    Parameters

    Sets the value of startValue. ...

    Sets the value of startValue.

    Parameters

    Ext.fx.easing.BoundMomentum
    view source
    ( startVelocity )
    Sets the value of startVelocity. ...

    Sets the value of startVelocity.

    Parameters

    Get the reference to the class from which this object was instantiated. ...

    Get the reference to the class from which this object was instantiated. Note that unlike 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
    

    Returns

    Ext.fx.easing.BoundMomentum
    view source
    ( startTime )private
    ...

    Parameters

    Fires

      Overrides: Ext.fx.easing.Abstract.updateStartTime

      Ext.fx.easing.BoundMomentum
      view source
      ( startValue )private
      ...

      Parameters

      Fires

        Ext.fx.easing.BoundMomentum
        view source
        ( startVelocity )private
        ...

        Parameters

        Fires

          Defined By

          Static methods

          ( config, fullMerge )privatestatic
          ...

          Parameters

          ( members )chainableprivatestatic
          ...

          Parameters

          ( name, member )chainableprivatestatic
          ...

          Parameters

          ( members )chainablestatic
          Add methods / properties to the prototype of this class. ...

          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();
          

          Parameters

          ( members ) : Ext.Basechainablestatic
          Add / override static properties of this class. ...

          Add / override static properties of this class.

          Ext.define('My.cool.Class', {
              // this.se
          });
          
          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() { ... };
          });
          

          Parameters

          Returns

          ( xtype )chainableprivatestatic
          ...

          Parameters

          ( fromClass, members ) : Ext.Basechainableprivatestatic
          Borrow another class' members to the prototype of this class. ...

          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 '$$$'
          steve.printMoney(); // alerts '$$$$$$$'
          

          Parameters

          • fromClass : Ext.Base

            The class to borrow members from

          • members : Array/String

            The names of the members to borrow

          Returns

          ( args )protectedstatic
          ...

          Parameters

          Create a new instance of this Class. ...

          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.

          Returns

          ( alias, origin )static
          Create aliases for existing prototype methods. ...

          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()
          

          Parameters

          ( parent )privatestatic
          ...

          Parameters

          Get the current class' name in string format. ...

          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'
          

          Returns

          ...
          ( name, mixinClass )privatestatic
          Used internally by the mixins pre-processor ...

          Used internally by the mixins pre-processor

          Parameters

          ( fn, scope )chainableprivatestatic
          ...

          Parameters

          ( members ) : Ext.Basechainabledeprecatedstatic
          Override members of this class. ...

          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!");
          
                  var instance = this.callParent(arguments);
          
                  alert("Meeeeoooowwww");
          
                  return instance;
              }
          });
          
          var kitty = new My.Cat(); // alerts "I'm going to be a cat!"
                                    // alerts "I'm a cat!"
                                    // alerts "Meeeeoooowwww"
          

          As of 2.1, direct use of this method is deprecated. Use Ext.define instead:

          Ext.define('My.CatOverride', {
              override: 'My.Cat',
          
              constructor: function() {
                  alert("I'm going to be a cat!");
          
                  var instance = this.callParent(arguments);
          
                  alert("Meeeeoooowwww");
          
                  return instance;
              }
          });
          

          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).

          This method has been deprecated since 2.1.0

          Please use Ext.define instead

          Parameters

          • members : Object

            The properties to add to this class. This should be specified as an object literal containing one or more properties.

          Returns