/
ResetFieldMixin.java
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/
ResetFieldMixin.java
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/*
* #%L
* GwtMaterial
* %%
* Copyright (C) 2015 - 2018 GwtMaterialDesign
* %%
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* #L%
*/
package gwt.material.design.client.base.mixin;
import com.google.gwt.user.client.ui.HasEnabled;
import com.google.gwt.user.client.ui.HasWidgets;
import com.google.gwt.user.client.ui.Widget;
import gwt.material.design.client.base.AbstractValueWidget;
import gwt.material.design.client.base.HasResetField;
import gwt.material.design.client.base.IsPropagateToChildren;
import gwt.material.design.client.ui.MaterialValueBox;
/**
* This mixin will perform resetting each {@link MaterialValueBox} inside the target {@link #content}.
*
* @author kevzlou7979@gmail.com
*/
public class ResetFieldMixin<C extends Widget> implements HasResetField, IsPropagateToChildren {
private C content;
private boolean allowResettingFields = true;
private boolean propagateToChildren = true;
public ResetFieldMixin(C content) {
assert content != null : "ResetFieldMixin content cannot be null";
this.content = content;
}
@Override
public void resetFields() {
if (allowResettingFields) {
if (content instanceof HasEnabled) {
((HasEnabled) content).setEnabled(true);
}
reset(content);
}
}
protected void reset(Widget parent) {
if (parent instanceof HasWidgets) {
for (Widget child : (HasWidgets) parent) {
if (child instanceof HasResetField) {
((HasResetField) child).resetFields();
}
else if (propagateToChildren) {
reset(child);
}
}
}
}
@Override
public void setAllowResettingFields(boolean allowResettingFields) {
this.allowResettingFields = allowResettingFields;
}
@Override
public boolean isAllowResettingFields() {
return allowResettingFields;
}
@Override
public boolean isPropagateToChildren() {
return propagateToChildren;
}
@Override
public void setPropagateToChildren(boolean propagateToChildren) {
this.propagateToChildren = propagateToChildren;
}
}