001/*
002 * #%L
003 * GwtMaterial
004 * %%
005 * Copyright (C) 2015 - 2017 GwtMaterialDesign
006 * %%
007 * Licensed under the Apache License, Version 2.0 (the "License");
008 * you may not use this file except in compliance with the License.
009 * You may obtain a copy of the License at
010 * 
011 *      http://www.apache.org/licenses/LICENSE-2.0
012 * 
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 * #L%
019 */
020package gwt.material.design.client.base.mixin;
021
022import com.google.gwt.user.client.ui.HasEnabled;
023import com.google.gwt.user.client.ui.UIObject;
024import gwt.material.design.client.base.HasReadOnly;
025import gwt.material.design.client.base.helper.StyleHelper;
026import gwt.material.design.client.constants.CssName;
027
028import static gwt.material.design.jquery.client.api.JQuery.$;
029
030public class ReadOnlyMixin<T extends UIObject & HasReadOnly, H extends UIObject> extends AbstractMixin<T>
031        implements HasReadOnly {
032
033    private H target;
034
035    public ReadOnlyMixin(T uiObject, H target) {
036        super(uiObject);
037        this.target = target;
038    }
039
040    @Override
041    public void setReadOnly(boolean readOnly) {
042        uiObject.removeStyleName(CssName.READ_ONLY);
043        if (readOnly) {
044            if (uiObject instanceof HasEnabled) {
045                ((HasEnabled) uiObject).setEnabled(false);
046            }
047            uiObject.addStyleName(CssName.READ_ONLY);
048            target.getElement().setAttribute("readonly", "");
049        } else {
050            if (uiObject instanceof HasEnabled) {
051                ((HasEnabled) uiObject).setEnabled(true);
052            }
053            target.getElement().removeAttribute("readonly");
054            uiObject.removeStyleName(CssName.READ_ONLY);
055        }
056    }
057
058    @Override
059    public boolean isReadOnly() {
060        return StyleHelper.containsStyle(uiObject.getStyleName(), CssName.READ_ONLY);
061    }
062
063    @Override
064    public void setToggleReadOnly(boolean value) {
065        uiObject.removeStyleName(CssName.READ_ONLY_TOGGLE);
066        if (value) {
067            uiObject.addStyleName(CssName.READ_ONLY_TOGGLE);
068            if (uiObject instanceof HasEnabled && !((HasEnabled) uiObject).isEnabled()) {
069                ((HasEnabled) uiObject).setEnabled(true);
070            }
071            $(target).off("mousedown");
072            $(uiObject).mousedown((e, param1) -> {
073                setReadOnly(false);
074                return true;
075            });
076
077            $(target).off("blur");
078            $(target).blur((e, param1) -> {
079                setReadOnly(true);
080                return true;
081            });
082        }
083    }
084
085    @Override
086    public boolean isToggleReadOnly() {
087        return StyleHelper.containsStyle(uiObject.getStyleName(), CssName.READ_ONLY_TOGGLE);
088    }
089}