/*
* Copyright 2014-2016 CyberVision, Inc.
*
* 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.
*/
package org.kaaproject.kaa.server.admin.client.mvp.view.base;
import com.google.gwt.core.client.GWT;
import com.google.gwt.event.dom.client.ChangeEvent;
import com.google.gwt.event.dom.client.ChangeHandler;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.HasClickHandlers;
import com.google.gwt.safehtml.shared.SafeHtmlUtils;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.DockLayoutPanel;
import com.google.gwt.user.client.ui.FlexTable;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.HTMLPanel;
import com.google.gwt.user.client.ui.HasHorizontalAlignment;
import com.google.gwt.user.client.ui.HasVerticalAlignment;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;
import org.kaaproject.avro.ui.gwt.client.AvroUiResources.AvroUiStyle;
import org.kaaproject.avro.ui.gwt.client.input.InputEvent;
import org.kaaproject.avro.ui.gwt.client.input.InputEventHandler;
import org.kaaproject.avro.ui.gwt.client.widget.AlertPanel;
import org.kaaproject.avro.ui.gwt.client.widget.AlertPanel.Type;
import org.kaaproject.kaa.server.admin.client.KaaAdminResources.KaaAdminStyle;
import org.kaaproject.kaa.server.admin.client.mvp.view.BaseDetailsView;
import org.kaaproject.kaa.server.admin.client.util.Utils;
public abstract class BaseDetailsViewImpl
extends Composite
implements InputEventHandler, ChangeHandler, BaseDetailsView {
protected static final String FULL_WIDTH = "100%";
protected static final int DEFAULT_TEXTBOX_SIZE = 255;
private static BaseDetailsViewImplUiBinder uiBinder =
GWT.create(BaseDetailsViewImplUiBinder.class);
@UiField(provided = true)
public final AlertPanel errorPanel;
@UiField(provided = true)
public final KaaAdminStyle kaaAdminStyle;
@UiField(provided = true)
public final AvroUiStyle avroUiStyle;
protected final boolean create;
protected final boolean editable;
@UiField
public DockLayoutPanel dockPanel;
@UiField
public VerticalPanel northPanel;
@UiField
public HorizontalPanel topPanel;
@UiField
public Label subTitleLabel;
@UiField
public FlexTable detailsTable;
@UiField
public HTMLPanel requiredFieldsNoteLabel;
@UiField
public FlowPanel footer;
protected Presenter presenter;
private boolean hasChanged = false;
private Widget backButtonPanelWidget;
private Button backButtonWidget;
private Label titleLabelWidget;
private Button saveButtonWidget;
private Button cancelButtonWidget;
public BaseDetailsViewImpl(boolean create) {
this(create, true);
}
/**
* Instantiates a new BaseDetailsViewImpl.
*/
public BaseDetailsViewImpl(boolean create, boolean editable) {
this.create = create;
this.editable = editable;
errorPanel = new AlertPanel(Type.ERROR);
kaaAdminStyle = Utils.kaaAdminStyle;
avroUiStyle = Utils.avroUiStyle;
initWidget(uiBinder.createAndBindUi(this));
constructTopPanel();
getTitileLabelWidget().setText(Utils.constants.title());
getSaveButtonWidget().setText(Utils.constants.save());
getCancelButtonWidget().setText(Utils.constants.cancel());
requiredFieldsNoteLabel.getElement().setInnerSafeHtml(
SafeHtmlUtils.fromSafeConstant(Utils.messages
.requiredFieldsNote(Utils.avroUiStyle
.requiredField())));
if (create) {
getTitileLabelWidget().setText(getCreateTitle());
getCancelButtonWidget().setVisible(true);
} else {
getTitileLabelWidget().setText(getViewTitle());
getBackButtonPanelWidget().setVisible(true);
}
subTitleLabel.setText(getSubTitle());
updateSaveButton(false, false);
detailsTable.getColumnFormatter().setWidth(0, "200px");
detailsTable.getColumnFormatter().setWidth(1, "300px");
if (!create) {
detailsTable.getColumnFormatter().setWidth(2, "300px");
}
getSaveButtonWidget().addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
updateSaveButton(false, false);
hasChanged = false;
}
});
getSaveButtonWidget().setVisible(editable);
requiredFieldsNoteLabel.setVisible(editable);
initDetailsTable();
clearError();
}
protected void updateNorthSize(int sizePx) {
dockPanel.setWidgetSize(northPanel, sizePx);
}
protected Widget getBackButtonPanelWidget() {
return backButtonPanelWidget;
}
protected Button getBackButtonWidget() {
return backButtonWidget;
}
protected Label getTitileLabelWidget() {
return titleLabelWidget;
}
protected Button getSaveButtonWidget() {
return saveButtonWidget;
}
protected Button getCancelButtonWidget() {
return cancelButtonWidget;
}
protected void constructTopPanel() {
FlowPanel panel = new FlowPanel();
panel.setSize("100%", "100%");
topPanel.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_LEFT);
topPanel.setVerticalAlignment(HasVerticalAlignment.ALIGN_MIDDLE);
topPanel.add(panel);
topPanel.setCellHeight(panel, "100%");
HorizontalPanel horizontalPanel = new HorizontalPanel();
horizontalPanel.setHeight("100%");
panel.add(horizontalPanel);
HorizontalPanel backButtonPanel = new HorizontalPanel();
backButtonPanel.setHeight("100%");
backButtonPanel.addStyleName(Utils.kaaAdminStyle.bAppPaddedPanel());
backButtonPanel.setVisible(false);
horizontalPanel.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_LEFT);
horizontalPanel.setVerticalAlignment(HasVerticalAlignment.ALIGN_MIDDLE);
horizontalPanel.add(backButtonPanel);
horizontalPanel.setCellHeight(backButtonPanel, "100%");
backButtonPanelWidget = backButtonPanel;
Button backButton = new Button();
backButton.addStyleName(Utils.kaaAdminStyle.bAppBackButton());
backButtonPanel.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_LEFT);
backButtonPanel.setVerticalAlignment(HasVerticalAlignment.ALIGN_MIDDLE);
backButtonPanel.add(backButton);
backButtonPanel.setCellHeight(backButton, "100%");
backButtonWidget = backButton;
Label titleLabel = new Label();
titleLabel.addStyleName(Utils.kaaAdminStyle.bAppContentTitle());
horizontalPanel.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_LEFT);
horizontalPanel.setVerticalAlignment(HasVerticalAlignment.ALIGN_MIDDLE);
horizontalPanel.add(titleLabel);
horizontalPanel.setCellHeight(titleLabel, "100%");
titleLabelWidget = titleLabel;
HorizontalPanel buttonsPanel = new HorizontalPanel();
buttonsPanel.setHeight("100%");
buttonsPanel.addStyleName(Utils.avroUiStyle.buttonsPanel());
horizontalPanel.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_LEFT);
horizontalPanel.setVerticalAlignment(HasVerticalAlignment.ALIGN_MIDDLE);
horizontalPanel.add(buttonsPanel);
horizontalPanel.setCellHeight(buttonsPanel, "100%");
Button saveButton = new Button();
buttonsPanel.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_LEFT);
buttonsPanel.setVerticalAlignment(HasVerticalAlignment.ALIGN_MIDDLE);
buttonsPanel.add(saveButton);
buttonsPanel.setCellHeight(saveButton, "100%");
saveButtonWidget = saveButton;
Button cancelButton = new Button();
cancelButton.setVisible(false);
buttonsPanel.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_LEFT);
buttonsPanel.setVerticalAlignment(HasVerticalAlignment.ALIGN_MIDDLE);
buttonsPanel.add(cancelButton);
buttonsPanel.setCellHeight(cancelButton, "100%");
cancelButtonWidget = cancelButton;
}
@Override
public void reset() {
clearError();
resetImpl();
updateSaveButton(false, false);
hasChanged = false;
}
@Override
public boolean hasChanged() {
return hasChanged;
}
@Override
public void setBackEnabled(boolean enabled) {
getBackButtonPanelWidget().setVisible(!create && enabled);
}
@Override
public void setCancelEnabled(boolean enabled) {
getCancelButtonWidget().setVisible(create && enabled);
}
@Override
public HasClickHandlers getBackButton() {
return getBackButtonWidget();
}
@Override
public HasClickHandlers getSaveButton() {
return getSaveButtonWidget();
}
@Override
public HasClickHandlers getCancelButton() {
return getCancelButtonWidget();
}
@Override
public void setPresenter(Presenter presenter) {
this.presenter = presenter;
}
@Override
public void setTitle(String title) {
getTitileLabelWidget().setText(title);
}
@Override
public void clearError() {
errorPanel.setMessage("");
errorPanel.setVisible(false);
}
@Override
public void setErrorMessage(String message) {
errorPanel.setMessage(message);
errorPanel.setVisible(true);
}
@Override
public void onInputChanged(InputEvent event) {
fireChanged();
}
@Override
public void onChange(ChangeEvent event) {
fireChanged();
}
protected void fireChanged() {
boolean valid = true;
valid &= validate();
updateSaveButton(valid, !valid);
hasChanged = true;
}
protected abstract String getCreateTitle();
protected abstract String getViewTitle();
protected abstract String getSubTitle();
protected abstract void initDetailsTable();
protected abstract void resetImpl();
protected abstract boolean validate();
protected void updateSaveButton(boolean enabled, boolean invalid) {
if (create || invalid) {
getSaveButtonWidget().setText(create ? Utils.constants.add() : Utils.constants.save());
} else {
getSaveButtonWidget().setText(enabled ? Utils.constants.save() : Utils.constants.saved());
}
getSaveButtonWidget().setEnabled(enabled);
}
protected FlowPanel getFooter() {
return footer;
}
interface BaseDetailsViewImplUiBinder extends UiBinder<Widget, BaseDetailsViewImpl> {
}
}