| /* |
| * Copyright 2000-2009 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. |
| */ |
| package com.intellij.openapi.vcs.changes.issueLinks; |
| |
| import com.intellij.ui.ClickListener; |
| import com.intellij.ui.SimpleColoredComponent; |
| import com.intellij.util.Consumer; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.awt.*; |
| import java.awt.event.MouseEvent; |
| import java.awt.event.MouseMotionListener; |
| |
| public abstract class LinkMouseListenerBase<T> extends ClickListener implements MouseMotionListener { |
| public static void installSingleTagOn(@NotNull SimpleColoredComponent component) { |
| new LinkMouseListenerBase<Object>() { |
| @Nullable |
| @Override |
| protected Object getTagAt(@NotNull MouseEvent e) { |
| //noinspection unchecked |
| return ((SimpleColoredComponent)e.getSource()).getFragmentTagAt(e.getX()); |
| } |
| |
| @Override |
| protected void handleTagClick(@Nullable Object tag, @NotNull MouseEvent event) { |
| if (tag != null) { |
| if (tag instanceof Consumer) { |
| //noinspection unchecked |
| ((Consumer<MouseEvent>)tag).consume(event); |
| } |
| else { |
| ((Runnable)tag).run(); |
| } |
| } |
| } |
| }.installOn(component); |
| } |
| |
| @Nullable |
| protected abstract T getTagAt(@NotNull MouseEvent e); |
| |
| @Override |
| public boolean onClick(@NotNull MouseEvent e, int clickCount) { |
| if (e.getButton() == MouseEvent.BUTTON1) { |
| handleTagClick(getTagAt(e), e); |
| } |
| return false; |
| } |
| |
| protected void handleTagClick(@Nullable T tag, @NotNull MouseEvent event) { |
| if (tag instanceof Runnable) { |
| ((Runnable)tag).run(); |
| } |
| } |
| |
| @Override |
| public void mouseDragged(MouseEvent e) { |
| } |
| |
| @Override |
| public void mouseMoved(MouseEvent e) { |
| Component component = (Component)e.getSource(); |
| Object tag = getTagAt(e); |
| if (tag != null) { |
| component.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR)); |
| } |
| else { |
| component.setCursor(Cursor.getDefaultCursor()); |
| } |
| } |
| |
| @Override |
| public void installOn(@NotNull Component component) { |
| super.installOn(component); |
| |
| component.addMouseMotionListener(this); |
| } |
| } |