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react4j.ReactElement Maven / Gradle / Ivy
package react4j;
import java.util.Objects;
import javaemul.internal.annotations.DoNotAutobox;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import jsinterop.annotations.JsOverlay;
import jsinterop.annotations.JsPackage;
import jsinterop.annotations.JsProperty;
import jsinterop.annotations.JsType;
import jsinterop.base.JsPropertyMap;
import react4j.internal.ViewConstructorFunction;
/**
* Element represents either a view or a host component.
*/
@SuppressWarnings( "unused" )
@JsType( isNative = true, name = "Object", namespace = JsPackage.GLOBAL )
public class ReactElement
implements ReactNode
{
@JsProperty( name = "$$typeof" )
private Object typeof;
private Object type;
private String key;
private Object ref;
@JsProperty( name = "props" )
private JsPropertyMap inputs;
// The view responsible for creating this element.
// can be null if create happens outside of a render method (i.e. at the top level).
@Nullable
private Object _owner;
@JsOverlay
public final ReactElement dup()
{
final ReactElement element = createRawNode( typeof, type );
element.key = key;
element.ref = ref;
element.inputs = JsPropertyMap.of();
inputs.forEach( key -> element.inputs.set( key, inputs.get( key ) ) );
return element;
}
@JsOverlay
@Nonnull
public static ReactElement createViewElement( @Nonnull final ViewConstructorFunction type )
{
final ReactElement element = create( type );
element.inputs = JsPropertyMap.of();
element.key = null;
element.ref = null;
return element;
}
@JsOverlay
@Nonnull
static ReactElement createContextElement( @Nonnull final Object type )
{
final ReactElement element = create( type );
element.inputs = JsPropertyMap.of();
element.key = null;
element.ref = null;
return element;
}
@JsOverlay
@Nonnull
private static ReactElement create( @Nonnull final Object type )
{
return createRawNode( React.Element, type );
}
@JsOverlay
@Nonnull
private static ReactElement createRawNode( @Nonnull final Object typeof, @Nonnull final Object type )
{
final ReactElement element = new ReactElement();
element.typeof = Objects.requireNonNull( typeof );
element.type = Objects.requireNonNull( type );
element._owner = React.currentOwner();
return element;
}
@JsOverlay
@Nonnull
private static ReactElement createRawElement( @Nonnull final Object type,
@Nullable final String key,
@Nullable final Object ref,
@Nonnull final JsPropertyMap inputs )
{
final ReactElement element = create( type );
element.key = key;
element.ref = ref;
element.inputs = Objects.requireNonNull( inputs );
return element;
}
@JsOverlay
@Nonnull
public static ReactElement createFragment( @Nullable final String key, @Nonnull final ReactNode... children )
{
final ReactElement element = createRawNode( React.Element, React.Fragment );
element.key = key;
element.ref = null;
element.inputs = JsPropertyMap.of( "children", Objects.requireNonNull( children ) );
return element;
}
/**
* Create a StrictMode component with the specified children.
*
* @param children the child nodes.
* @return a new React.StrictMode component.
*/
@JsOverlay
@Nonnull
public static ReactNode createStrictMode( @Nonnull final ReactNode... children )
{
return ReactElement.createRawElement( React.StrictMode,
null,
null,
JsPropertyMap.of( "children", Objects.requireNonNull( children ) ) );
}
@JsOverlay
@Nonnull
public static ReactElement createSuspense( @Nullable final String key,
@Nullable final ReactNode fallback,
final int maxTimeToFallback,
@Nonnull final ReactNode... children )
{
final ReactElement element = createRawNode( React.Element, React.Suspense );
element.key = key;
element.ref = null;
element.inputs = JsPropertyMap.of( "children", Objects.requireNonNull( children ),
"fallback", fallback,
"ms", maxTimeToFallback );
return element;
}
@JsOverlay
@Nonnull
public static ReactElement createHostElement( @Nonnull final String type,
@Nullable final String key,
@Nullable final Object ref,
@Nonnull final JsPropertyMap inputs )
{
return createRawElement( type, key, ref, inputs );
}
@JsOverlay
@Nullable
public final String key()
{
return key;
}
@JsOverlay
public final void setKey( @Nullable final String key )
{
this.key = key;
}
@JsOverlay
@Nonnull
public final JsPropertyMap inputs()
{
return inputs;
}
@JsOverlay
@Nonnull
public final ReactElement input( @Nonnull final String key, @DoNotAutobox final Object value )
{
inputs.set( key, value );
return this;
}
@JsOverlay
protected final void setInputs( @Nonnull final JsPropertyMap inputs )
{
this.inputs = inputs;
}
}
