| /* |
| * 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.history.integration.ui.models; |
| |
| import com.intellij.history.core.tree.Entry; |
| import com.intellij.history.integration.IdeaGateway; |
| import com.intellij.history.integration.LocalHistoryBundle; |
| import com.intellij.openapi.diff.DiffContent; |
| import com.intellij.openapi.diff.SimpleContent; |
| import com.intellij.openapi.editor.Document; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.io.FileUtil; |
| import com.intellij.util.text.DateFormatUtil; |
| |
| public abstract class FileDifferenceModel { |
| protected final Project myProject; |
| protected final IdeaGateway myGateway; |
| private final boolean isRightContentCurrent; |
| |
| protected FileDifferenceModel(Project p, IdeaGateway gw, boolean currentRightContent) { |
| myProject = p; |
| myGateway = gw; |
| isRightContentCurrent = currentRightContent; |
| } |
| |
| public String getTitle() { |
| Entry e = getRightEntry(); |
| if (e == null) e = getLeftEntry(); |
| return FileUtil.toSystemDependentName(e.getPath()); |
| } |
| |
| public String getLeftTitle(RevisionProcessingProgress p) { |
| if (!hasLeftEntry()) return LocalHistoryBundle.message("file.does.not.exist"); |
| return formatTitle(getLeftEntry(), isLeftContentAvailable(p)); |
| } |
| |
| public String getRightTitle(RevisionProcessingProgress p) { |
| if (!hasRightEntry()) return LocalHistoryBundle.message("file.does.not.exist"); |
| if (!isRightContentAvailable(p)) { |
| return formatTitle(getRightEntry(), false); |
| } |
| if (isRightContentCurrent) return LocalHistoryBundle.message("current.revision"); |
| return formatTitle(getRightEntry(), true); |
| } |
| |
| private String formatTitle(Entry e, boolean isAvailable) { |
| String result = DateFormatUtil.formatPrettyDateTime(e.getTimestamp()) + " - " + e.getName(); |
| if (!isAvailable) { |
| result += " - " + LocalHistoryBundle.message("content.not.available"); |
| } |
| return result; |
| } |
| |
| protected abstract Entry getLeftEntry(); |
| |
| protected abstract Entry getRightEntry(); |
| |
| public DiffContent getLeftDiffContent(RevisionProcessingProgress p) { |
| if (!canShowLeftEntry(p)) return new SimpleContent(""); |
| return doGetLeftDiffContent(p); |
| } |
| |
| protected abstract DiffContent doGetLeftDiffContent(RevisionProcessingProgress p); |
| |
| public DiffContent getRightDiffContent(RevisionProcessingProgress p) { |
| if (!canShowRightEntry(p)) return new SimpleContent(""); |
| if (isRightContentCurrent) return getEditableRightDiffContent(p); |
| return getReadOnlyRightDiffContent(p); |
| } |
| |
| private boolean canShowLeftEntry(RevisionProcessingProgress p) { |
| return hasLeftEntry() && isLeftContentAvailable(p); |
| } |
| |
| private boolean canShowRightEntry(RevisionProcessingProgress p) { |
| return hasRightEntry() && isRightContentAvailable(p); |
| } |
| |
| private boolean hasLeftEntry() { |
| return getLeftEntry() != null; |
| } |
| |
| private boolean hasRightEntry() { |
| return getRightEntry() != null; |
| } |
| |
| protected abstract boolean isLeftContentAvailable(RevisionProcessingProgress p); |
| |
| protected abstract boolean isRightContentAvailable(RevisionProcessingProgress p); |
| |
| protected abstract DiffContent getReadOnlyRightDiffContent(RevisionProcessingProgress p); |
| |
| protected abstract DiffContent getEditableRightDiffContent(RevisionProcessingProgress p); |
| |
| protected SimpleContent createSimpleDiffContent(String content, Entry e) { |
| return new SimpleContent(content, myGateway.getFileType(e.getName())); |
| } |
| |
| protected Document getDocument() { |
| return myGateway.getDocument(getRightEntry().getPath()); |
| } |
| } |