CodeAPI

HiddenCollapsedMixin

Provides functionality for all elements that can be hidden or collapsed.

Table of Contents

PROPERTIES

?
Store values associated with an object.
collapsedIndicates if the element is collapsed or expanded.
hiddenIndicates if the element is visible or hidden.
isVisibleIndicates if the element is actually visible.

FUNCTIONS

?
Perform actions on an object.
collapse( )Collapses the element and sets its collapsed property to true.
expand( )Expands the element and sets its collapsed property to false.
hide( )

Hides the element and sets its hidden property to true, using an effect if specified.

show( )

Shows the element and sets its hidden property to false, using an effect if specified.

MIXES IN

?
Where some functionality is inherited from.
$w.HiddenMixin, $w.CollapsedMixin

collapsed

Indicates if the element is collapsed or expanded.

Description

If collapsed is true, the element is not displayed on the page under any circumstances. A collapsed element, unlike a hidden element, does not take up any space on the page. When collapsed, elements positioned within 70 pixels below the collapsed element and each other move up to take the collapsed element's place where possible. The elements that move up maintain their positions relative to one another.

If collapsed is false, the element may be displayed on the page. Elements that moved up to take the collapsed element's place on the page are moved back down.

However, an expanded element (an element whose collapsed property is false) is still not displayed if:

Even if the element is not be displayed due to the conditions mentioned above, if its collapsed property is false, it's displayed when the conditions no longer apply.

To set the collapsed property on an element, use the element's collapse() and expand() functions.

If you select Collapsed on load in the element's Properties panel in the Editor, the collapsed property is set to true when the page loads.

See Also

collapse( ), expand( ), hide( ), show( ), hidden

Syntax

get collapsed(): boolean
TYPE
?
The kind of data the property stores.
boolean
DEFAULT VALUE
?
The value of a property before you explicitly set it.
false

MIXED IN FROM

?
Where this functionality is inherited from.
$w.CollapsedMixin

Examples

Get an element's collapsed status

let isCollapsed = $w("#myElement").collapsed; // false

Toggle an element's collapsed state

if( $w("#myElement").collapsed ) {
  $w("#myElement").expand();
}
else {
  $w("#myElement").collapse();
}

hidden

Indicates if the element is visible or hidden.

Description

If hidden is true, the element is not displayed on the page under any circumstances. A hidden element, unlike a collapsed element, continues to take up the same space on the page as it did when it was visible.

If hidden is false, the element may be displayed on the page.

However, an element whose hidden property is false is still not displayed if:

Even if the element is not displayed due to the conditions mentioned above, if its hidden property is set to false, it's displayed when the conditions no longer apply.

To determine if the element is actually visible, use the isVisible property.

To set the hidden property on an element, use the element's hide() or show() functions.

If you select Hidden on load in the element's Properties panel in the Editor, the hidden property is set to true when the page loads.

Note

An element's hidden property is not the same as its isVisible property. The hidden property indicates whether the element should be displayed, while isVisible indicates if it is actually displayed.

See Also

hide( ), show( ), collapse( ), expand( ), collapsed, rendered

Syntax

get hidden(): boolean
TYPE
?
The kind of data the property stores.
boolean
DEFAULT VALUE
?
The value of a property before you explicitly set it.
false

MIXED IN FROM

?
Where this functionality is inherited from.
$w.HiddenMixin

Examples

Get an element's hidden status

let isHidden = $w("#myElement").hidden;  // false

Toggle an element's hidden state

if( $w("#myElement").hidden ) {
  $w("#myElement").show();
}
else {
  $w("#myElement").hide();
}

isVisible

Indicates if the element is actually visible.

Description

If isVisible is true, the element is displayed on the page.

If isVisible is false, the element is not displayed on the page.

The value of the isVisible property is calculated based on the hidden, collapsed, and rendered properties of the element and all of its ancestors. It is true only if the conditions exist in the element's property values and the property values of its ancestors such that the element is actually displayed on the page.

Note

An element's isVisible property is not the same as its hidden property. The isVisible property indicates whether the element is actually displayed, while hidden indicates if it should be displayed.

The isVisible property of an element remains true even if another element completely covers it so that a user cannot see it.

See Also

hidden, collapsed, rendered

Syntax

get isVisible(): boolean
TYPE
?
The kind of data the property stores.
boolean
DEFAULT VALUE
?
The value of a property before you explicitly set it.
true

MIXED IN FROM

?
Where this functionality is inherited from.
$w.HiddenMixin

Examples

Get whether an element is visible

let isVisible = $w("#myElement").isVisible;  // true

collapse( )

Collapses the element and sets its collapsed property to true.

Description

The collapse() function returns a Promise that is resolved when the element's collapsed property has been set to true.

To learn about the behavior of a collapsed element, see the collapsed property.

You can also collapse an element when the page loads by using the Properties panel in the Editor.

See Also

expand( ), collapsed, hide( )

Syntax

function collapse(): Promise<void>
RETURN VALUE
?
Value that a function evaluates to when it is finished running.
Promise<void>
Fulfilled - When the element's collapsed property has been set to true.

MIXED IN FROM

?
Where this functionality is inherited from.
$w.CollapsedMixin

Examples

Collapse an element

$w("#myElement").collapse();

Collapse an element and log a message when done

$w("#myElement").collapse()
  .then( () => {
    console.log("Done with collapse");
  } );

Toggle an element's collapsed state

if( $w("#myElement").collapsed ) {
  $w("#myElement").expand();
}
else {
  $w("#myElement").collapse();
}

expand( )

Expands the element and sets its collapsed property to false.

Description

The expand() function returns a Promise that is resolved when the element's collapsed property has been set to false.

To learn about the behavior of an expanded element, see the collapsed property.

See Also

expand( ), collapsed, show( )

Syntax

function expand(): Promise<void>
RETURN VALUE
?
Value that a function evaluates to when it is finished running.
Promise<void>
Fulfilled - When the element's collapsed property has been set to false.

MIXED IN FROM

?
Where this functionality is inherited from.
$w.CollapsedMixin

Examples

Expand an element

$w("#myElement").expand();

Expand an element and log a message when done

$w("#myElement").expand()
  .then( () => {
    console.log("Done with expand");
  } );

Toggle an element's collapsed state

if( $w("#myElement").collapsed ) {
  $w("#myElement").expand();
}
else {
  $w("#myElement").collapse();
}

hide( )

Hides the element and sets its hidden property to true, using an effect if specified.

Description

The hide() function hides the element and returns a Promise that is resolved when the effect is complete and the element's hidden property has been set to true.

To learn about the behavior of a hidden element, see the hidden property.

You can optionally apply an effect when hiding the element by providing an effectName value. You can also customize the effect by providing the optional effectOptions object.

Effects:

You can also hide an element when the page loads by using the Properties panel in the Editor.

See Also

show( ), hidden, collapse( )

Syntax

function hide([effectName: string], [effectOptions: ArcEffectOptions | BounceEffectOptions | FadeEffectOptions | FlipEffectOptions | FloatEffectOptions | FlyEffectOptions | FoldEffectOptions | GlideEffectOptions | PuffEffectOptions | RollEffectOptions | SlideEffectOptions | SpinEffectOptions | TurnEffectOptions | ZoomEffectOptions]): Promise<void>
RETURN VALUE
?
Value that a function evaluates to when it is finished running.
Promise<void>
Fulfilled - When the effect is complete and the element's hidden property has been set to true.

MIXED IN FROM

?
Where this functionality is inherited from.
$w.HiddenMixin

Examples

Hide an element with no effect

$w("#myElement").hide();

Hide an element with the "fade" effect

$w("#myElement").hide("fade");

Hide an element with an effect and log message when the effect is done

let fadeOptions = {
  "duration":   2000,
  "delay":      1000
};

$w("#myElement").hide("fade", fadeOptions);

Hide an element with an effect and log message when the effect is done

$w("#myElement").hide("fade")
  .then( ( ) => {
    console.log("Done with fade");
} );

Toggle an element's hidden state

if( $w("#myElement").hidden ) {
  $w("#myElement").show();
}
else {
  $w("#myElement").hide();
}

show( )

Shows the element and sets its hidden property to false, using an effect if specified.

Description

The show() function shows the element and returns a Promise that is resolved when the effect is complete and the element's hidden property has been set to false.

You can optionally apply an effect when showing the element by providing an effectName value. You can also customize the effect by providing the optional effectOptions object.

Effects:

See Also

hide( ), hidden, expand( )

Syntax

function show([effectName: string], [effectOptions: ArcEffectOptions | BounceEffectOptions | FadeEffectOptions | FlipEffectOptions | FloatEffectOptions | FlyEffectOptions | FoldEffectOptions | GlideEffectOptions | PuffEffectOptions | RollEffectOptions | SlideEffectOptions | SpinEffectOptions | TurnEffectOptions | ZoomEffectOptions]): Promise<void>
RETURN VALUE
?
Value that a function evaluates to when it is finished running.
Promise<void>
Fulfilled - When the effect is complete and the element's hidden property has been set to false.

MIXED IN FROM

?
Where this functionality is inherited from.
$w.HiddenMixin

Examples

Show an element with no effect

$w("#myElement").show();

Show an element with the "fade" effect

$w("#myElement").show("fade");

Show an element with the "fade" effect and custom options

let fadeOptions = {
  "duration":   2000,
  "delay":      1000
};

$w("#myElement").show("fade", fadeOptions);

Show an element with an effect and log message when the effect is done

$w("#myElement").show("fade")
  .then( ( ) => {
    console.log("Done with fade");
  } );

Toggle an element's hidden state

if( $w("#myElement").hidden ) {
  $w("#myElement").show();
}
else {
  $w("#myElement").hide();
}