| /* |
| * Copyright 2000-2012 JetBrains s.r.o. |
| * |
| * 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. |
| */ |
| |
| /* |
| * @author max |
| */ |
| package com.intellij.ui; |
| |
| import com.intellij.util.ui.UIUtil; |
| import org.jetbrains.annotations.NotNull; |
| |
| import javax.swing.*; |
| import java.awt.*; |
| import java.awt.event.MouseAdapter; |
| import java.awt.event.MouseEvent; |
| |
| public abstract class ClickListener { |
| |
| private static final int EPS = 4; |
| private MouseAdapter myListener; |
| |
| public abstract boolean onClick(@NotNull MouseEvent event, int clickCount); |
| |
| public void installOn(@NotNull Component c) { |
| myListener = new MouseAdapter() { |
| private Point pressPoint; |
| private Point lastClickPoint; |
| private long lastTimeClicked = -1; |
| private int clickCount = 0; |
| |
| @Override |
| public void mousePressed(MouseEvent e) { |
| final Point point = e.getPoint(); |
| SwingUtilities.convertPointToScreen(point, e.getComponent()); |
| |
| if (Math.abs(lastTimeClicked - e.getWhen()) > UIUtil.getMultiClickInterval() || lastClickPoint != null && !isWithinEps(lastClickPoint, point)) { |
| clickCount = 0; |
| lastClickPoint = null; |
| } |
| clickCount++; |
| lastTimeClicked = e.getWhen(); |
| |
| if (!e.isPopupTrigger()) { |
| pressPoint = point; |
| } |
| } |
| |
| @Override |
| public void mouseReleased(MouseEvent e) { |
| Point releasedAt = e.getPoint(); |
| SwingUtilities.convertPointToScreen(releasedAt, e.getComponent()); |
| Point clickedAt = pressPoint; |
| lastClickPoint = clickedAt; |
| pressPoint = null; |
| |
| if (e.isConsumed() || clickedAt == null || e.isPopupTrigger() || !e.getComponent().contains(e.getPoint())) { |
| return; |
| } |
| |
| if (isWithinEps(releasedAt, clickedAt) && onClick(e, clickCount)) { |
| e.consume(); |
| } |
| } |
| }; |
| |
| c.addMouseListener(myListener); |
| } |
| |
| private static boolean isWithinEps(Point releasedAt, Point clickedAt) { |
| return Math.abs(clickedAt.x - releasedAt.x) < EPS && Math.abs(clickedAt.y - releasedAt.y) < EPS; |
| } |
| |
| public void uninstall(Component c) { |
| c.removeMouseListener(myListener); |
| } |
| } |