/*
* Copyright 2000-2016 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.editor.impl;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.actionSystem.ActionPlan;
import com.intellij.util.text.ImmutableCharSequence;
import org.jetbrains.annotations.NotNull;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
class EditorActionPlan implements ActionPlan {
private ImmutableCharSequence myText;
private final Editor myEditor;
private int myCaretOffset;
private final List<Replacement> myReplacements = new ArrayList<>();
EditorActionPlan(@NotNull Editor editor) {
myEditor = editor;
myText = (ImmutableCharSequence)editor.getDocument().getImmutableCharSequence();
myCaretOffset = editor.getCaretModel().getOffset();
}
@NotNull
@Override
public ImmutableCharSequence getText() {
return myText;
}
@Override
public void replace(int begin, int end, String s) {
myText = myText.delete(begin, end).insert(begin, s);
myReplacements.add(new Replacement(begin, end, s));
if (myCaretOffset == end) {
myCaretOffset += s.length() - (end - begin);
}
}
@Override
public int getCaretOffset() {
return myCaretOffset;
}
@Override
public void setCaretOffset(int offset) {
myCaretOffset = offset;
}
public List<Replacement> getReplacements() {
return Collections.unmodifiableList(myReplacements);
}
public int getCaretShift() {
return myCaretOffset - myEditor.getCaretModel().getOffset();
}
static class Replacement {
private final int myBegin;
private final int myEnd;
private final String myText;
Replacement(int begin, int end, String text) {
myBegin = begin;
myEnd = end;
myText = text;
}
public int getBegin() {
return myBegin;
}
public int getEnd() {
return myEnd;
}
public String getText() {
return myText;
}
}
}