Yahoo! UI Library

Slider Widget  2.3.0

Yahoo! UI Library > slider > YAHOO.widget.SliderThumb

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Class YAHOO.widget.SliderThumb - extends YAHOO.util.DD

A drag and drop implementation to be used as the thumb of a slider.

Constructor

YAHOO.widget.SliderThumb ( id , sGroup , iLeft , iRight , iUp , iDown , iTickSize )
Parameters:
id <String> the id of the slider html element
sGroup <String> the group of related DragDrop items
iLeft <int> the number of pixels the element can move left
iRight <int> the number of pixels the element can move right
iUp <int> the number of pixels the element can move up
iDown <int> the number of pixels the element can move down
iTickSize <int> optional parameter for specifying that the element should move a certain number pixels at a time.

Properties

_graduated - private boolean

The slider is _graduated if there is a tick interval defined

_isHoriz - private boolean

Flag used to figure out if this is a horizontal or vertical slider

_prevVal - private int

Cache the last value so we can check for change

isTarget - private object

Overrides the isTarget property in YAHOO.util.DragDrop

maintainOffset - private boolean

Informs the drag and drop util that the offsets should remain when resetting the constraints. This preserves the slider value when the constraints are reset

parentElId - string

The id of the thumbs parent HTML element (the slider background element).

scroll - private object

Turns off the autoscroll feature in drag and drop

startOffset - [int, int]

The (X and Y) difference between the thumb location and its parent (the slider background) when the control is instantiated.

tickSize - private int

The tick size for this slider

Properties inherited from YAHOO.util.DD:

scroll

Properties inherited from YAHOO.util.DragDrop:

__ygDragDrop, _domRef, available, config, constrainX, constrainY, cursorIsOver, deltaX, deltaY, dragElId, groups, handleElId, hasOuterHandles, id, invalidHandleClasses, invalidHandleIds, invalidHandleTypes, locked, maintainOffset, maxX, maxY, minX, minY, overlap, primaryButtonOnly, startPageX, startPageY, xTicks, yTicks

Methods

clearTicks

void clearTicks ( )
Clear's the slider's ticks
Returns: void

getOffsetFromParent

void getOffsetFromParent ( parentPos )
Returns the difference between the location of the thumb and its parent.
Parameters:
parentPos <[int, int]> Optionally accepts the position of the parent
Returns: void

getValue

int getValue ( )
Gets the current offset from the element's start position in pixels.
Returns: int
the number of pixels (positive or negative) the slider has moved from the start position.

getXValue

int getXValue ( )
Gets the current X offset from the element's start position in pixels.
Returns: int
the number of pixels (positive or negative) the slider has moved horizontally from the start position.

getYValue

int getYValue ( )
Gets the current Y offset from the element's start position in pixels.
Returns: int
the number of pixels (positive or negative) the slider has moved vertically from the start position.

initSlider

void initSlider ( iLeft , iRight , iUp , iDown , iTickSize )
Set up the slider, must be called in the constructor of all subclasses
Parameters:
iLeft <int> the number of pixels the element can move left
iRight <int> the number of pixels the element can move right
iUp <int> the number of pixels the element can move up
iDown <int> the number of pixels the element can move down
iTickSize <int> the width of the tick interval.
Returns: void

onChange

private void onChange ( )
The onchange event for the handle/thumb is delegated to the YAHOO.widget.Slider instance it belongs to.
Returns: void

toString

string toString ( )
Thumb toString
Returns: string
string representation of the instance

Methods inherited from YAHOO.util.DD:

alignElWithMouse, autoOffset, autoScroll, cachePosition, setDelta, setDragElPos

Methods inherited from YAHOO.util.DragDrop:

addInvalidHandleClass, addInvalidHandleId, addInvalidHandleType, addToGroup, applyConfig, b4Drag, b4DragDrop, b4DragOut, b4DragOver, b4EndDrag, b4MouseDown, b4StartDrag, clearConstraints, clearTicks, endDrag, getDragEl, getEl, getTargetCoord, getTick, handleMouseDown, handleOnAvailable, init, initTarget, isLocked, isTarget, isValidHandleChild, lock, onAvailable, onDrag, onDragDrop, onDragEnter, onDragOut, onDragOver, onInvalidDrop, onMouseDown, onMouseUp, padding, removeFromGroup, removeInvalidHandleClass, removeInvalidHandleId, removeInvalidHandleType, resetConstraints, setDragElId, setHandleElId, setInitialPosition, setOuterHandleElId, setPadding, setStartPosition, setXConstraint, setXTicks, setYConstraint, setYTicks, startDrag, toString, unlock, unreg

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