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/*
 * #%L
 * GwtMaterial
 * %%
 * Copyright (C) 2015 - 2017 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.ui;

import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.Style.Display;
import com.google.gwt.i18n.client.HasDirection.Direction;
import com.google.gwt.i18n.shared.DirectionEstimator;
import com.google.gwt.safehtml.shared.SafeHtml;
import com.google.gwt.user.client.DOM;
import gwt.material.design.client.async.AsyncWidgetCallback;
import gwt.material.design.client.async.IsAsyncWidget;
import gwt.material.design.client.async.loader.AsyncDisplayLoader;
import gwt.material.design.client.async.loader.DefaultCheckBoxLoader;
import gwt.material.design.client.async.mixin.AsyncWidgetMixin;
import gwt.material.design.client.base.BaseCheckBox;
import gwt.material.design.client.base.mixin.ToggleStyleMixin;
import gwt.material.design.client.constants.CheckBoxType;
import gwt.material.design.client.constants.CssName;
import gwt.material.design.client.events.DefaultHandlerRegistry;
import gwt.material.design.client.events.HandlerRegistry;

//@formatter:off

/**
 * Checkbox component provides two types
 * - FILLED
 * - INTERMEDIATE
 * 

*

UiBinder Usage:

*
 * {@code
 * // Default
 * 
 *
 * // Filled
 * 
 * }
 * 
*

* * @author kevzlou7979 * @author Ben Dol * @see CheckBox * @see Material Design Specification */ public class MaterialCheckBox extends BaseCheckBox implements IsAsyncWidget { private Object object; private static final String CHECKBOX = "checkbox"; private HandlerRegistry handlerRegistry = new DefaultHandlerRegistry(this); private ToggleStyleMixin toggleOldMixin; private AsyncWidgetMixin asyncWidgetMixin; private CheckBoxType type; public MaterialCheckBox() { super(DOM.createDiv()); setStyleName(CHECKBOX); setAsyncDisplayLoader(new DefaultCheckBoxLoader(this)); setType(CheckBoxType.FILLED); } public MaterialCheckBox(Element elem) { super(elem); } public MaterialCheckBox(SafeHtml label, Direction dir) { super(label, dir); } public MaterialCheckBox(SafeHtml label, DirectionEstimator directionEstimator) { super(label, directionEstimator); } public MaterialCheckBox(SafeHtml label) { super(label); } public MaterialCheckBox(String label, boolean asHTML) { super(label, asHTML); } public MaterialCheckBox(String label, Direction dir) { super(label, dir); } public MaterialCheckBox(String label, DirectionEstimator directionEstimator) { super(label, directionEstimator); } public MaterialCheckBox(String label) { super(label); } public MaterialCheckBox(String label, CheckBoxType type) { super(label); setType(type); } @Override protected void onLoad() { super.onLoad(); getElement().getStyle().setDisplay(isVisible() ? Display.BLOCK : Display.NONE); handlerRegistry.registerHandler(addClickHandler(event -> { if (isAsynchronous()) { load(getAsyncCallback()); event.preventDefault(); event.stopPropagation(); } })); } @Override protected void onUnload() { super.onUnload(); handlerRegistry.clearHandlers(); } public Object getObject() { return object; } public void setObject(Object object) { this.object = object; } /** * Used the old checkbox. */ public void setOld(boolean old) { getToggleOldMixin().setOn(old); } public boolean isOld() { return getToggleOldMixin().isOn(); } /** * Setting the type of Checkbox. */ public void setType(CheckBoxType type) { this.type = type; switch (type) { case FILLED: Element input = DOM.getChild(getElement(), 0); input.setAttribute("class", CssName.FILLED_IN); break; case INTERMEDIATE: addStyleName(type.getCssName() + "-checkbox"); break; default: addStyleName(type.getCssName()); break; } } public CheckBoxType getType() { return type; } public ToggleStyleMixin getToggleOldMixin() { if (toggleOldMixin == null) { toggleOldMixin = new ToggleStyleMixin<>(this, CssName.OLD_CHECKBOX); } return toggleOldMixin; } @Override public void setAsynchronous(boolean asynchronous) { getAsyncWidgetMixin().setAsynchronous(asynchronous); } @Override public boolean isAsynchronous() { return getAsyncWidgetMixin().isAsynchronous(); } @Override public void load(AsyncWidgetCallback asyncCallback) { getAsyncWidgetMixin().load(asyncCallback); } @Override public void setLoaded(boolean loaded) { getAsyncWidgetMixin().setLoaded(loaded); } @Override public boolean isLoaded() { return getAsyncWidgetMixin().isLoaded(); } @Override public void setAsyncCallback(AsyncWidgetCallback asyncCallback) { getAsyncWidgetMixin().setAsyncCallback(asyncCallback); } @Override public AsyncWidgetCallback getAsyncCallback() { return getAsyncWidgetMixin().getAsyncCallback(); } @Override public void setAsyncDisplayLoader(AsyncDisplayLoader displayLoader) { getAsyncWidgetMixin().setAsyncDisplayLoader(displayLoader); } @Override public AsyncDisplayLoader getAsyncDisplayLoader() { return getAsyncWidgetMixin().getAsyncDisplayLoader(); } public AsyncWidgetMixin getAsyncWidgetMixin() { if (asyncWidgetMixin == null) { asyncWidgetMixin = new AsyncWidgetMixin<>(this); } return asyncWidgetMixin; } }




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