new ValueButton(optionsopt)
- Source:
- Mixes In:
Properties:
Name | Type | Attributes | Default | Description |
---|---|---|---|---|
options.value |
Number |
<optional> |
0
|
The value of the widget. |
options.direction |
String |
<optional> |
"polar"
|
Direction for changing the value. Can be "polar", "vertical" or "horizontal". See DragValue for more details. |
options.blind_angle |
Number |
<optional> |
20
|
If |
options.rotation |
Number |
<optional> |
45
|
Defines the angle of the center of the positive value changes. 0 means straight upward. For instance, a value of 45 leads to increasing value when moving towards top and right. See DragValue for more details. |
options.snap |
Number |
<optional> |
0.01
|
Snap value while dragging. |
options.basis |
Number |
<optional> |
300
|
Distance to drag between |
options.label |
String | Boolean |
<optional> |
false
|
Text for the
button label. Set to |
options.icon |
String | Boolean |
<optional> |
false
|
URL to an image
file or an icon class (see styles/fonts/AUX.html). If set
to |
options.state |
Boolean |
<optional> |
false
|
State of the button,
reflected as class |
options.layout |
String |
<optional> |
"horizontal"
|
Define the
arrangement of label and icon. |
options.delay |
Integer |
<optional> |
0
|
Enable delayed events. The
value is set in milliseconds. If
this is set to >0, Button fires some additional events, most importantly
|
options.title |
String |
<optional> |
""
|
A string to be set as title attribute on the main element to be displayed as tooltip. (Defined in Widget) |
options.disabled |
Boolean |
<optional> |
false
|
Toggles the class |
options.active |
Boolean |
<optional> |
Toggles the class |
|
options.visible |
Boolean |
<optional> |
Toggles the class |
|
options.needs_resize |
Boolean |
<optional> |
true
|
Set to true if the resize function shall be called before the next redraw. (Defined in Widget) |
options.dblclick |
Boolean |
<optional> |
400
|
Set a time in milliseconds for triggering double click event. If 0, no double click events are fired. (Defined in Widget) |
options.preset |
String |
<optional> |
Set a preset. This string
gets set as class attribute |
|
options.presets |
Object |
<optional> |
{}
|
An object with available preset
specific options. Refer to |
options.notransitions_duration |
number |
<optional> |
500
|
A time in milliseconds until transitions are activated. (Defined in Widget) |
options.scale |
String | Array.<Number> | function |
<optional> |
"linear"
|
The type of the scale. Either one of |
options.reverse |
Boolean |
<optional> |
false
|
Reverse the scale of the range. (Defined in Ranged) |
options.clip |
Boolean |
<optional> |
true
|
If true, snap() will clip values into the interval between min and max. (Defined in Ranged) |
options.min |
Number |
<optional> |
0
|
Minimum value of the range. (Defined in Ranged) |
options.max |
Number |
<optional> |
1
|
Maximum value of the range. (Defined in Ranged) |
options.log_factor |
Number |
<optional> |
1
|
Used to overexpand logarithmic curves. 1 keeps the natural curve while values above 1 will overbend. (Defined in Ranged) |
options.base |
Number |
<optional> |
0
|
Base point. Used e.g. to mark 0dB on a fader from -96dB to 12dB. (Defined in Ranged) |
options.step |
Number |
<optional> |
0
|
Step size. Used for instance by ScrollValue as the step size. (Defined in Ranged) |
options.shift_up |
Number |
<optional> |
4
|
Multiplier for increased stepping speed, e.g. used by ScrollValue when simultaneously pressing 'shift'. (Defined in Ranged) |
options.shift_down |
Number |
<optional> |
0.25
|
Multiplier for decreased stepping speed, e.g. used by ScrollValue when simultaneously pressing 'shift' and 'ctrl'. (Defined in Ranged) |
This widget combines a Button, a Scale and a Value. ValueButton uses DragValue and ScrollValue for setting its value. It inherits all options of DragValue and Scale.
Parameters:
Name | Type | Attributes | Default | Description |
---|---|---|---|---|
options |
Object |
<optional> |
{ }
|
An object containing initial options. |
Extends
Members
drag :DragValue
- Source:
The DragValue module.
Type:
element :HTMLDivElement
- Source:
- Overrides:
The main DIV container.
Has class .aux-valuebutton
.
Type:
- HTMLDivElement
icon :Icon
- Source:
- Inherited From:
The Icon widget.
Type:
label :Label
- Source:
- Inherited From:
The Label of the button.
Type:
scale :Scale
- Source:
The Scale showing the value.
Type:
scroll :ScrollValue
- Source:
The ScrollValue module.
Type:
value :Value
- Source:
The value widget for editing the value manually.
Type:
Methods
addChild(child)
- Source:
- Inherited From:
- See:
Registers a widget as a child widget. This method is used to build up the widget tree. It does not modify the DOM tree.
Parameters:
Name | Type | Description |
---|---|---|
child |
Widget | The child to add. |
Fires:
- Widget#event:child_added
addChildren(a)
- Source:
- Inherited From:
Registers an array of widgets as children.
Parameters:
Name | Type | Description |
---|---|---|
a |
Array.<Widget> | An array of Widgets. |
addEventListener(event, func)
- Source:
- Inherited From:
Register an event handler.
Parameters:
Name | Type | Description |
---|---|---|
event |
string | The event descriptor. |
func |
function | The function to call when the event happens. |
allChildren()
- Source:
- Inherited From:
Returns an array of all children.
appendChild(child)
- Source:
- Inherited From:
Appends child.element
to the widget element and
registers child
as a child widget.
Parameters:
Name | Type | Description |
---|---|---|
child |
Widget | The child widget to append. |
appendChildren(children)
- Source:
- Inherited From:
Calls Widget#appendChild for an array of widgets.
Parameters:
Name | Type | Description |
---|---|---|
children |
Array.<Widget> | The child widgets to append. |
delegateEvents(element) → {HTMLElement}
- Source:
- Inherited From:
Delegates all occuring DOM events of a specific DOM node to the widget. This way the widget fires e.g. a click event if someone clicks on the given DOM node.
Parameters:
Name | Type | Description |
---|---|---|
element |
HTMLElement | The element all native events of the widget should be bound to. |
Fires:
Returns:
The element
- Type
- HTMLElement
destroy()
- Source:
- Inherited From:
Destroys all event handlers and the options object.
disableTansitions()
- Source:
- Inherited From:
Disable CSS transitions.
dispatchEvent(event, …args)
- Source:
- Inherited From:
Fires an event.
Parameters:
Name | Type | Attributes | Description |
---|---|---|---|
event |
string | The event descriptor. |
|
args |
* |
<repeatable> |
Event arguments. |
enableDraw()
- Source:
- Inherited From:
Schedules this widget for drawing.
Fires:
enableDrawChildren()
- Source:
- Inherited From:
Enables rendering for all children of this widget.
enableTransitions()
- Source:
- Inherited From:
Enable CSS transitions.
forceHide()
- Source:
- Inherited From:
Hide the widget immediately by applying the class aux-hide
.
Does not call disableDraw().
forceShow()
- Source:
- Inherited From:
Show the widget immediately by applying the class aux-show
.
Does not call enableDraw().
get(key)
- Source:
- Inherited From:
Get the value of an option.
Parameters:
Name | Type | Description |
---|---|---|
key |
string | The option name. |
getDefault()
- Source:
- Inherited From:
Returns the default value of a given option. If the option does not exist, an exception is thrown.
getOptionType()
- Source:
- Inherited From:
Returns the type of an option. If the given option does not exist, 'undefined' is returned.
getStyle()
- Source:
- Inherited From:
Returns the computed style of this widget's DOM element.
hasEventListeners(event) → {boolean}
- Source:
- Inherited From:
Test if the event descriptor has some handler functions in the queue.
Parameters:
Name | Type | Description |
---|---|---|
event |
string | The event desriptor. |
Returns:
True if the event has some handler functions in the queue, false if not.
- Type
- boolean
hidden()
- Source:
- Inherited From:
Returns the current hidden status.
hide()
- Source:
- Inherited From:
Hide the widget. This will result in the class aux-hide
being applied to this widget in the next rendering step.
off(event, fun)
- Source:
- Inherited From:
Removes the given function from the event queue. If it is a native DOM event, it removes the DOM event listener as well.
Parameters:
Name | Type | Description |
---|---|---|
event |
string | The event descriptor. |
fun |
function | The function to remove. |
removeChild(child)
- Source:
- Inherited From:
Removes a child widget. Note that this method only modifies the widget tree and does not change the DOM.
Parameters:
Name | Type | Description |
---|---|---|
child |
Widget | The child to remove. |
Fires:
- Widget#event:child_removed
removeChildren(a)
- Source:
- Inherited From:
Removes an array of children.
Parameters:
Name | Type | Description |
---|---|---|
a |
Array.<Widget> | An array of Widgets. |
reset(key)
- Source:
- Inherited From:
Resets an option to its default value.
Parameters:
Name | Type | Description |
---|---|---|
key |
string | The option name. |
set(key, value)
- Source:
- Inherited From:
Sets an option.
Parameters:
Name | Type | Description |
---|---|---|
key |
string | The option name. |
value |
The option value. |
setOptions(optionsopt)
- Source:
- Inherited From:
Merges a new options object into the existing one, including deep copies of objects. If an option key begins with the string "on" it is considered an event handler. In this case the value should be the handler function for the event with the corresponding name without the first "on" characters.
Parameters:
Name | Type | Attributes | Default | Description |
---|---|---|---|---|
options |
Object |
<optional> |
{ }
|
An object containing initial options. |
setStyle()
- Source:
- Inherited From:
Sets a CSS style property in this widget's DOM element.
show()
- Source:
- Inherited From:
Make the widget visible. This will apply the class aux-show
during the next rendering step.
toggleHidden()
- Source:
- Inherited From:
Toggle the hidden status. This is equivalent to calling hide() or show(), depending on the current hidden status of this widget.
update(key, value)
- Source:
- Inherited From:
Conditionally sets an option unless it already has the requested value.
Parameters:
Name | Type | Description |
---|---|---|
key |
string | The name of the option. |
value |
mixed | The value of the option. |
Fires:
userset(key, value)
- Source:
- Inherited From:
Sets an option by user interaction. Emits the userset
event. The userset
event can be cancelled (if an event handler
returns false
), in which case the option is not set.
Returns true
if the option was set, false
otherwise. If the option was set, it will emit a useraction
event.
Parameters:
Name | Type | Description |
---|---|---|
key |
string | The name of the option. |
value |
mixed | The value of the option. |
Fires:
- Base#event:userset
- Base#event:useraction
visibleChildren()
- Source:
- Inherited From:
Returns an array of all visible children.
Events
clicked
- Source:
- Inherited From:
Is fired if a delay is set, after the pointer is released and the timeout hasn't finished yet. Doesn't fire after the timeout finished.
Parameters:
Name | Type | Description |
---|---|---|
event |
Event | Either the MouseEvent or the TouchEvent. |
delegated
- Source:
- Inherited From:
Is fired when an element is delegated.
Parameters:
Name | Type | Description |
---|---|---|
element |
HTMLElement | Array | The element which receives all native DOM events. |
old_element |
HTMLElement | Array | The element which previously received all native DOM events. |
destroy
- Source:
- Inherited From:
Is fired when a widget is destroyed.
doubleclick
- Source:
- Overrides:
Is fired when the user doubleclicks the valuebutton in order to to reset to initial value. The Argument is the new value.
Parameters:
Name | Type | Description |
---|---|---|
value |
number | The value of the widget. |
GenericDOMEvents
- Source:
- Inherited From:
Generic DOM events. Please refer to W3Schools for further details.
hide
- Source:
- Inherited From:
The hide
event is emitted when a widget is hidden and is not rendered anymore.
This happens both with browser visibility changes and also internally when using layout widgets
such as Pager.
initialized
- Source:
- Inherited From:
Is fired when a widget is initialized.
press_cancel
- Source:
- Inherited From:
Is fired after press_start
or press_delay
and before
a press_end
was fired while the pointer is dragged outside of the
button element.
Parameters:
Name | Type | Description |
---|---|---|
event |
Event | Either the MouseEvent or the TouchEvent. |
press_delayed
- Source:
- Inherited From:
Is fired after either a mousedown or a touchstart happened
but delay
is set so firing press_start
will be delayed.
press_end
- Source:
- Inherited From:
Is fired after either a mouseup or a touchend happened and the
pointer didn't leave the button element after press_start
or
press_delayed
was fired.
Parameters:
Name | Type | Description |
---|---|---|
event |
Event | Either the MouseEvent or the TouchEvent. |
press_start
- Source:
- Inherited From:
Is fired after either a mousedown or a touchstart happened and
delay
is set to 0
. If a delay is set, press_delayed
is fired
instead on mousedown/touchstart and this event gets fired as soon
as the delay time is over.
Parameters:
Name | Type | Description |
---|---|---|
event |
Event | Either the MouseEvent or the TouchEvent. |
pressed
- Source:
- Inherited From:
Is fired if delay
is set and the timeout has finished.
Parameters:
Name | Type | Description |
---|---|---|
event |
Event | Either the MouseEvent or the TouchEvent. |
redraw
- Source:
- Inherited From:
The redraw
event is emitted when a widget is redrawn. This can be used
to do additional DOM modifications to a Widget.
resize
- Source:
- Inherited From:
The resize
event is emitted whenever a widget is being resized. This event can
be used to e.g. measure its new size. Note that some widgets do internal adjustments after
the resize
event. If that is relevant, the Widget#resized event can
be used instead.
resized
- Source:
- Inherited From:
The resized
event is emitted after each rendering frame, which was triggered by
a resize event.
set
- Source:
- Inherited From:
The set
event is emitted when an option was set using the Widget#set
method. The arguments are the option name and its new value.
Note that this happens both for user interaction and programmatical option changes.
set_[option]
- Source:
- Inherited From:
Is fired when an option is set.
Parameters:
Name | Type | Description |
---|---|---|
value |
mixed | The value of the option. |
show
- Source:
- Inherited From:
The show
event is emitted when a widget is shown and is being rendered. This is the
counterpart to Widget#hide.
useraction
- Source:
The useraction
event is emitted when a widget gets modified by user interaction.
The event is emitted for the option value
.
Parameters:
Name | Type | Description |
---|---|---|
name |
string | The name of the option which was changed due to the users action |
value |
mixed | The new value of the option |
valueedit
- Source:
Is fired when the user starts editing the value manually
Parameters:
Name | Type | Description |
---|---|---|
value |
number | The value of the widget. |
valueedit
- Source:
Is fired when the user starts editing the value manually.
Parameters:
Name | Type | Description |
---|---|---|
value |
number | The value of the widget. |
valueset
- Source:
Is fired when the user finished editing the value manually
Parameters:
Name | Type | Description |
---|---|---|
value |
number | The value of the widget. |
valueset
- Source:
Is fired when the user finished editing the value manually.
Parameters:
Name | Type | Description |
---|---|---|
value |
number | The value of the widget. |
visibility
- Source:
- Inherited From:
Is fired when the visibility state changes. The first argument
is the visibility state, which is either true
or false
.