Java tutorial
/* * Copyright 2000-2018 Vaadin Ltd. * * 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 com.vaadin.shared; import java.io.Serializable; /** * Helper class to store and transfer mouse event details. */ public class MouseEventDetails implements Serializable { /** * @deprecated use {@link MouseButton#LEFT} instead. */ @Deprecated public static final MouseButton BUTTON_LEFT = MouseButton.LEFT; /** * @deprecated use {@link MouseButton#MIDDLE} instead. */ @Deprecated public static final MouseButton BUTTON_MIDDLE = MouseButton.MIDDLE; /** * @deprecated use {@link MouseButton#RIGHT} instead. */ @Deprecated public static final MouseButton BUTTON_RIGHT = MouseButton.RIGHT; /** * Constants for mouse buttons. * * @author Vaadin Ltd * @since 7.0 * */ public enum MouseButton { LEFT("left"), RIGHT("right"), MIDDLE("middle"); private String name; private MouseButton(String name) { this.name = name; } /** * Returns a human readable text representing the button. * * @return */ public String getName() { return name; } } private static final char DELIM = ','; // From com.google.gwt.user.client.Event private static final int ONDBLCLICK = 0x00002; private MouseButton button; private int clientX; private int clientY; private boolean altKey; private boolean ctrlKey; private boolean metaKey; private boolean shiftKey; private int type; private int relativeX = -1; private int relativeY = -1; public MouseButton getButton() { return button; } public int getClientX() { return clientX; } public int getClientY() { return clientY; } public boolean isAltKey() { return altKey; } public boolean isCtrlKey() { return ctrlKey; } public boolean isMetaKey() { return metaKey; } public boolean isShiftKey() { return shiftKey; } public int getRelativeX() { return relativeX; } public int getRelativeY() { return relativeY; } public void setButton(MouseButton button) { this.button = button; } public void setClientX(int clientX) { this.clientX = clientX; } public void setClientY(int clientY) { this.clientY = clientY; } public void setAltKey(boolean altKey) { this.altKey = altKey; } public void setCtrlKey(boolean ctrlKey) { this.ctrlKey = ctrlKey; } public void setMetaKey(boolean metaKey) { this.metaKey = metaKey; } public void setShiftKey(boolean shiftKey) { this.shiftKey = shiftKey; } public void setType(int type) { this.type = type; } public void setRelativeX(int relativeX) { this.relativeX = relativeX; } public void setRelativeY(int relativeY) { this.relativeY = relativeY; } public MouseEventDetails() { } @Override public String toString() { return serialize(); } public String serialize() { return button.toString() + DELIM + clientX + DELIM + clientY + DELIM + altKey + DELIM + ctrlKey + DELIM + metaKey + DELIM + shiftKey + DELIM + type + DELIM + relativeX + DELIM + relativeY; } public static MouseEventDetails deSerialize(String serializedString) { MouseEventDetails instance = new MouseEventDetails(); String[] fields = serializedString.split(","); instance.button = MouseButton.valueOf(fields[0]); instance.clientX = Integer.parseInt(fields[1]); instance.clientY = Integer.parseInt(fields[2]); instance.altKey = Boolean.valueOf(fields[3]).booleanValue(); instance.ctrlKey = Boolean.valueOf(fields[4]).booleanValue(); instance.metaKey = Boolean.valueOf(fields[5]).booleanValue(); instance.shiftKey = Boolean.valueOf(fields[6]).booleanValue(); instance.type = Integer.parseInt(fields[7]); instance.relativeX = Integer.parseInt(fields[8]); instance.relativeY = Integer.parseInt(fields[9]); return instance; } public String getButtonName() { return button == null ? "" : button.getName(); } public int getType() { return type; } public boolean isDoubleClick() { return type == ONDBLCLICK; } }