com.intellij.openapi.diff.DocumentContent.java Source code

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Here is the source code for com.intellij.openapi.diff.DocumentContent.java

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// Copyright 2000-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
package com.intellij.openapi.diff;

import com.intellij.ide.util.PsiNavigationSupport;
import com.intellij.openapi.editor.Document;
import com.intellij.openapi.fileEditor.FileDocumentManager;
import com.intellij.openapi.fileTypes.FileType;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.pom.Navigatable;
import com.intellij.util.LineSeparator;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import java.nio.charset.StandardCharsets;

public class DocumentContent extends DiffContent {
    private final Document myDocument;
    private final VirtualFile myFile;
    private final FileType myOverriddenType;
    private final Project myProject;
    private final FileDocumentManager myDocumentManager;

    public DocumentContent(Project project, Document document) {
        this(project, document, null);
    }

    public DocumentContent(Project project, @NotNull Document document, FileType type) {
        myProject = project;
        myDocument = document;
        myDocumentManager = FileDocumentManager.getInstance();
        myFile = myDocumentManager.getFile(document);
        myOverriddenType = type;
    }

    public DocumentContent(@NotNull Document document) {
        this(null, document, null);
    }

    public DocumentContent(@NotNull Document document, @NotNull FileType type) {
        this(null, document, type);
    }

    @Override
    @NotNull
    public Document getDocument() {
        return myDocument;
    }

    @Override
    public Navigatable getOpenFileDescriptor(int offset) {
        VirtualFile file = getFile();
        if (file == null)
            return null;
        if (myProject == null)
            return null;
        return PsiNavigationSupport.getInstance().createNavigatable(myProject, file, offset);
    }

    @Override
    public VirtualFile getFile() {
        return myFile;
    }

    @Override
    @Nullable
    public FileType getContentType() {
        return myOverriddenType == null ? DiffContentUtil.getContentType(getFile()) : myOverriddenType;
    }

    @Override
    public byte[] getBytes() {
        return myDocument.getText().getBytes(StandardCharsets.UTF_8);
    }

    @NotNull
    @Override
    public LineSeparator getLineSeparator() {
        return LineSeparator.fromString(myDocumentManager.getLineSeparator(myFile, myProject));
    }
}