| /* |
| * Copyright 2000-2014 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.diff.actions; |
| |
| import com.intellij.openapi.actionSystem.AnAction; |
| import com.intellij.openapi.actionSystem.AnActionEvent; |
| import com.intellij.openapi.actionSystem.Presentation; |
| import com.intellij.openapi.diff.impl.DiffUtil; |
| import com.intellij.openapi.diff.impl.util.FocusDiffSide; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.editor.LogicalPosition; |
| import com.intellij.openapi.editor.ScrollType; |
| import com.intellij.openapi.project.DumbAware; |
| |
| import java.awt.event.KeyEvent; |
| |
| abstract class DiffWalkerAction extends AnAction implements DumbAware { |
| protected DiffWalkerAction() { |
| setEnabledInModalContext(true); |
| } |
| |
| public void actionPerformed(AnActionEvent event) { |
| FocusDiffSide side = DiffUtil.getFocusDiffSide(event.getDataContext()); |
| if (side == null) return; |
| int line = getLineNumberToGo(side); |
| Editor editor = side.getEditor(); |
| if (line >= 0 && editor != null) { |
| LogicalPosition pos = new LogicalPosition(line, 0); |
| editor.getCaretModel().removeSecondaryCarets(); |
| editor.getCaretModel().moveToLogicalPosition(pos); |
| editor.getScrollingModel().scrollToCaret(ScrollType.CENTER); |
| } |
| } |
| |
| public void update(AnActionEvent event) { |
| FocusDiffSide side = DiffUtil.getFocusDiffSide(event.getDataContext()); |
| Presentation presentation = event.getPresentation(); |
| if (side == null) { |
| presentation.setEnabled(false); |
| } else { |
| presentation.setEnabled(getLineNumberToGo(side) >= 0 || event.getInputEvent() instanceof KeyEvent); |
| } |
| } |
| |
| protected abstract int getLineNumberToGo(FocusDiffSide side); |
| } |