Java tutorial
/* * * Copyright (C) 2007-2015 Licensed to the Comunes Association (CA) under * one or more contributor license agreements (see COPYRIGHT for details). * The CA licenses this file to you under the GNU Affero General Public * License version 3, (the "License"); you may not use this file except in * compliance with the License. This file is part of kune. * * 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 cc.kune.common.client.ui; import cc.kune.common.client.tooltip.Tooltip; import cc.kune.common.client.ui.EditEvent.EditHandler; import cc.kune.common.shared.utils.SimpleCallback; import com.google.gwt.core.client.GWT; import com.google.gwt.event.dom.client.BlurEvent; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.KeyDownEvent; import com.google.gwt.event.dom.client.MouseOutEvent; import com.google.gwt.event.dom.client.MouseOverEvent; import com.google.gwt.event.shared.HandlerRegistration; import com.google.gwt.uibinder.client.UiBinder; import com.google.gwt.uibinder.client.UiField; import com.google.gwt.uibinder.client.UiHandler; import com.google.gwt.user.client.Timer; import com.google.gwt.user.client.ui.Composite; import com.google.gwt.user.client.ui.InlineLabel; import com.google.gwt.user.client.ui.TextBox; import com.google.gwt.user.client.ui.Widget; // TODO: Auto-generated Javadoc /** * The Class EditableLabel. * * @author vjrj@ourproject.org (Vicente J. Ruiz Jurado) */ public class EditableLabel extends Composite implements HasEditHandler { /** * The Interface EditableLabelUiBinder. * * @author vjrj@ourproject.org (Vicente J. Ruiz Jurado) */ interface EditableLabelUiBinder extends UiBinder<Widget, EditableLabel> { } /** The Constant BLINK_TIME. */ private static final int BLINK_TIME = 400; /** The ui binder. */ private static EditableLabelUiBinder uiBinder = GWT.create(EditableLabelUiBinder.class); /** The editable. */ private boolean editable; /** The label. */ @UiField InlineLabel label; /** The textbox. */ @UiField TextBox textbox; /** The tooltip text. */ private String tooltipText; /** * Instantiates a new editable label. */ public EditableLabel() { initWidget(uiBinder.createAndBindUi(this)); label.setStylePrimaryName("k-editableLabel"); editable = false; tooltipText = ""; } /* * (non-Javadoc) * * @see * cc.kune.common.client.ui.HasEditHandler#addEditHandler(cc.kune.common.client * .ui.EditEvent.EditHandler) */ @Override public HandlerRegistration addEditHandler(final EditHandler handler) { return addHandler(handler, EditEvent.getType()); } /** * Blink timer. * * @param add * the add * @param callback * the callback */ private void blinkTimer(final boolean add, final SimpleCallback callback) { new Timer() { @Override public void run() { if (add) { label.addStyleDependentName("high"); } else { label.removeStyleDependentName("high"); } callback.onCallback(); } }.schedule(BLINK_TIME); } /** * Edits the. */ public void edit() { if (editable) { label.setVisible(false); textbox.setVisible(true); textbox.setFocus(true); textbox.setCursorPos(textbox.getText().length()); } } /** * Finish edit. */ private void finishEdit() { label.setText(textbox.getText()); label.setVisible(true); textbox.setVisible(false); fireEvent(new EditEvent(textbox.getValue())); } /** * Gets the tooltip value. * * @return the tooltip value */ private String getTooltipValue() { return editable ? tooltipText : ""; } /** * Handle keys. * * @param event * the event */ @UiHandler("textbox") void handleKeys(final KeyDownEvent event) { if (event.getNativeKeyCode() == 13) { finishEdit(); } } /** * Highlight title. */ public void highlightTitle() { if (editable) { blinkTimer(true, new SimpleCallback() { @Override public void onCallback() { blinkTimer(false, new SimpleCallback() { @Override public void onCallback() { Tooltip.getTip().showTemporally(label, tooltipText); } }); } }); } } /** * On blur. * * @param event * the event */ @UiHandler("textbox") void onBlur(final BlurEvent event) { finishEdit(); } /** * On click. * * @param e * the e */ @UiHandler("label") void onClick(final ClickEvent e) { edit(); } /** * On mouse out. * * @param event * the event */ @UiHandler("label") void onMouseOut(final MouseOutEvent event) { if (editable) { label.removeStyleDependentName("high"); } } /** * On mouse over. * * @param event * the event */ @UiHandler("label") void onMouseOver(final MouseOverEvent event) { if (editable) { label.addStyleDependentName("high"); } } /** * Sets the editable. * * @param editable * the new editable */ public void setEditable(final boolean editable) { this.editable = editable; Tooltip.to(label, getTooltipValue()); } /** * Sets the text. * * @param text * the new text */ public void setText(final String text) { label.setText(text); textbox.setText(text); } /** * Sets the tooltip. * * @param tooltip * the new tooltip */ public void setTooltip(final String tooltip) { this.tooltipText = tooltip; } }