ProgressBar

ProgressBar

new ProgressBar()

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ProgressBar is a pre-configured LevelMeter to display progress in percent.

Extends

Members

_backdrop :HTMLCanvas

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The canvas element drawing the background. Has class .aux-backdrop.

Type:
  • HTMLCanvas

_bar :HTMLDivElement

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The DIV element containing the masks and drawing the background. Has class .aux-bar.

Type:
  • HTMLDivElement

_canvas :HTMLCanvas

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The canvas element drawing the mask. Has class .aux-mask.

Type:
  • HTMLCanvas

element :HTMLDivElement

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The main DIV container. Has class .aux-progressbar.

Type:
  • HTMLDivElement

label :Label

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The Label displaying the title. Has class .aux-label.

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scale :Scale

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The Scale of the meter.

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value :Label

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The Label displaying the value.

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Methods

addChild(child)

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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)

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Registers an array of widgets as children.

Parameters:
Name Type Description
a Array.<Widget>

An array of Widgets.

allChildren()

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Returns an array of all children.

appendChild(child)

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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)

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Calls Widget#appendChild for an array of widgets.

Parameters:
Name Type Description
children Array.<Widget>

The child widgets to append.

disableTansitions()

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Disable CSS transitions.

enableDraw()

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Schedules this widget for drawing.

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enableDrawChildren()

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Enables rendering for all children of this widget.

enableTransitions()

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Enable CSS transitions.

forceHide()

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Hide the widget immediately by applying the class aux-hide. Does not call disableDraw().

forceShow()

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Show the widget immediately by applying the class aux-show. Does not call enableDraw().

getStyle()

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Returns the computed style of this widget's DOM element.

hidden()

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Returns the current hidden status.

hide()

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Hide the widget. This will result in the class aux-hide being applied to this widget in the next rendering step.

invalidate(key)

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Invalidates an option and triggers a redraw() call.

Parameters:
Name Type Description
key string

observeResize(cb)

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Calls a callback whenever the widget resizes. This method will trigger one resize.

Parameters:
Name Type Description
cb function

removeChild(child)

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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)

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Removes an array of children.

Parameters:
Name Type Description
a Array.<Widget>

An array of Widgets.

set(key, value)

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Sets an option.

Parameters:
Name Type Description
key string

The option name.

value

The option value.

setFocus(focus)

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Sets or removes focus on the element returned by getFocusTarget.

Parameters:
Name Type Description
focus Boolean

setStyle()

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Sets a CSS style property in this widget's DOM element.

show()

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Make the widget visible. This will apply the class aux-show during the next rendering step.

toggleHidden()

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Toggle the hidden status. This is equivalent to calling hide() or show(), depending on the current hidden status of this widget.

transitionsDisabled()

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Returns true if transitions are currently disabled on this widget.

visibleChildren()

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Returns an array of all visible children.

Events

destroy

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Is fired when a widget is destroyed.

doubleclick

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Is fired after a double click appeared. Set dblclick to 0 to disable click event handling.

Parameters:
Name Type Description
event string

The browsers MouseEvent.

GenericDOMEvents

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Generic DOM events. Please refer to W3Schools for further details.

hide

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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

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Is fired when a widget is initialized.

redraw

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The redraw event is emitted when a widget is redrawn. This can be used to do additional DOM modifications to a Widget.

resize

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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

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The resized event is emitted after each rendering frame, which was triggered by a resize event.

set

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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.

show

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The show event is emitted when a widget is shown and is being rendered. This is the counterpart to Widget#hide.

visibility

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Is fired when the visibility state changes. The first argument is the visibility state, which is either true or false.