ilarkesto.gwt.client.desktop.fields.FieldEditorDialogBox.java Source code

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Here is the source code for ilarkesto.gwt.client.desktop.fields.FieldEditorDialogBox.java

Source

/*
 * Copyright 2011 Witoslaw Koczewsi <wi@koczewski.de>
 * 
 * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero
 * General Public License as published by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public
 * License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License along with this program. If not,
 * see <http://www.gnu.org/licenses/>.
 */
package ilarkesto.gwt.client.desktop.fields;

import ilarkesto.core.base.Str;
import ilarkesto.core.logging.Log;
import ilarkesto.gwt.client.Updatable;
import ilarkesto.gwt.client.desktop.BuilderPanel;
import ilarkesto.gwt.client.desktop.Widgets;

import java.util.List;

import com.google.gwt.dom.client.Style;
import com.google.gwt.dom.client.Style.Display;
import com.google.gwt.dom.client.Style.TextAlign;
import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.DialogBox;
import com.google.gwt.user.client.ui.IsWidget;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.Widget;

public class FieldEditorDialogBox {

    private static Log log = Log.get(FieldEditorDialogBox.class);

    private AEditableField field;
    private Widget editorWidget;

    private DialogBox dialog;
    private Label errorLabel;

    private ASelfdocPanel selfdocPanel;

    public FieldEditorDialogBox(AEditableField field) {
        this.field = field;
    }

    public void submit() {
        errorLabel.setText(null);
        Widgets.hide(errorLabel);
        try {
            field.submit();
        } catch (Exception ex) {
            log.info(ex);
            errorLabel.setText(Str.formatException(ex));
            Widgets.showAsBlock(errorLabel);
            return;
        }

        Updatable updatable = field.getUpdatable();
        if (updatable != null)
            updatable.update();
        field.update();

        if (dialog == null)
            return;
        dialog.hide();
        dialog = null;
    }

    public void center() {
        if (dialog == null)
            return;
        dialog.center();
    }

    public void cancel() {
        if (dialog == null)
            return;
        dialog.hide();
        dialog = null;
    }

    public void show() {
        createDialog();
        dialog.center();
        dialog.show();
        Widgets.focusAndSelect(editorWidget);
    }

    private void createDialog() {
        dialog = Widgets.dialog(true, field.getLabel(), createContent(), createFooter());
        if (selfdocPanel != null)
            selfdocPanel.setDialog(dialog);
    }

    private Widget createContent() {
        BuilderPanel panel = new BuilderPanel();
        panel.setSpacing(0);

        String tooltip = field.getTooltip();
        if (tooltip != null) {
            Label tooltipLabel = new Label(tooltip);
            tooltipLabel.getElement().getStyle().setMarginBottom(Widgets.defaultSpacing, Unit.PX);
            panel.add(tooltipLabel);
        }

        errorLabel = createErrorLabel();
        panel.add(errorLabel);

        IsWidget header = field.createEditorHeaderWidget();
        if (header != null) {
            panel.add(header);
            panel.add(Widgets.verticalSpacer());
        }

        editorWidget = field.createEditorWidgetForUse();
        panel.add(editorWidget);
        if (field.isSelfdocEnabled()) {
            String selfdocKey = Str.getSimpleName(field.getClass());
            panel.add(Widgets.verticalSpacer());
            selfdocPanel = Widgets.selfdocPanel(selfdocKey);
            panel.add(selfdocPanel);
        }

        return Widgets.frame(panel.asWidget());
    }

    private Widget createFooter() {
        Button applyButton = new Button(field.getApplyButtonLabel(), new ApplyClickHandler());
        applyButton.getElement().setId("applyButton");
        applyButton.setStyleName("goon-Button");
        applyButton.getElement().getStyle().setMarginTop(Widgets.defaultSpacing, Unit.PX);

        Button cancelButton = new Button("Abbrechen", new CancelClickHandler());
        cancelButton.getElement().setId("cancelButton");
        cancelButton.setStyleName("goon-Button");

        BuilderPanel buttonRow = new BuilderPanel().setHorizontal().setSpacing(0);

        buttonRow.setChildTextAlign(TextAlign.RIGHT);
        buttonRow.add(Widgets.horizontalSpacer());
        buttonRow.setChildWidth("1px");

        List<? extends IsWidget> additionalButtons = field.getAdditionalDialogButtons(this);
        buttonRow.addWithPadding(3, new Object[] { cancelButton });
        buttonRow.addWithPadding(3, new Object[] { additionalButtons });
        buttonRow.addWithPadding(3, new Object[] { applyButton });

        return buttonRow.asWidget();
    }

    private Label createErrorLabel() {
        Label label = new Label();
        Style style = label.getElement().getStyle();
        style.setDisplay(Display.NONE);
        style.setColor("#cc0000");
        style.setMarginTop(Widgets.defaultSpacing, Unit.PX);
        style.setMarginBottom(Widgets.defaultSpacing, Unit.PX);
        return label;
    }

    public boolean isField(AField f) {
        return field == f;
    }

    private class ApplyClickHandler implements ClickHandler {

        @Override
        public void onClick(ClickEvent event) {
            submit();
        }
    }

    private class CancelClickHandler implements ClickHandler {

        @Override
        public void onClick(ClickEvent event) {
            cancel();
        }
    }

}