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A packaging of the IntelliJ Community Edition platform-impl library.
This is release number 1 of trunk branch 142.
The newest version!
/*
* Copyright 2000-2015 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.
*/
/*
* Created by IntelliJ IDEA.
* User: max
* Date: Jun 6, 2002
* Time: 4:54:58 PM
* To change template for new class use
* Code Style | Class Templates options (Tools | IDE Options).
*/
package com.intellij.openapi.editor.actions;
import com.intellij.ide.ui.customization.CustomActionsSchema;
import com.intellij.openapi.actionSystem.ActionGroup;
import com.intellij.openapi.actionSystem.ActionManager;
import com.intellij.openapi.actionSystem.ActionPlaces;
import com.intellij.openapi.actionSystem.ActionPopupMenu;
import com.intellij.openapi.editor.*;
import com.intellij.openapi.editor.event.EditorMouseEvent;
import com.intellij.openapi.editor.event.EditorMouseEventArea;
import com.intellij.openapi.editor.ex.EditorEx;
import com.intellij.openapi.editor.ex.util.EditorUtil;
import com.intellij.openapi.editor.highlighter.EditorHighlighter;
import com.intellij.openapi.editor.highlighter.HighlighterIterator;
import com.intellij.openapi.editor.impl.EditorImpl;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.Comparing;
import com.intellij.openapi.util.Key;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.psi.PsiDocumentManager;
import com.intellij.psi.PsiFile;
import com.intellij.psi.codeStyle.CodeStyleSettingsManager;
import com.intellij.psi.tree.IElementType;
import com.intellij.util.EditorPopupHandler;
import com.intellij.util.text.CharArrayUtil;
import org.jetbrains.annotations.NotNull;
import java.awt.*;
import java.awt.event.MouseEvent;
import java.util.List;
public class EditorActionUtil {
protected static final Object EDIT_COMMAND_GROUP = Key.create("EditGroup");
public static final Object DELETE_COMMAND_GROUP = Key.create("DeleteGroup");
private EditorActionUtil() {
}
/**
* Tries to change given editor's viewport position in vertical dimension by the given number of visual lines.
*
* @param editor target editor which viewport position should be changed
* @param lineShift defines viewport position's vertical change length
* @param columnShift defines viewport position's horizontal change length
* @param moveCaret flag that identifies whether caret should be moved if its current position becomes off-screen
*/
public static void scrollRelatively(@NotNull Editor editor, int lineShift, int columnShift, boolean moveCaret) {
if (lineShift != 0) {
editor.getScrollingModel().scrollVertically(
editor.getScrollingModel().getVerticalScrollOffset() + lineShift * editor.getLineHeight()
);
}
if (columnShift != 0) {
editor.getScrollingModel().scrollHorizontally(
editor.getScrollingModel().getHorizontalScrollOffset() + columnShift * EditorUtil.getSpaceWidth(Font.PLAIN, editor)
);
}
if (!moveCaret) {
return;
}
Rectangle viewRectangle = editor.getScrollingModel().getVisibleArea();
int lineNumber = editor.getCaretModel().getVisualPosition().line;
VisualPosition startPos = editor.xyToVisualPosition(new Point(0, viewRectangle.y));
int start = startPos.line + 1;
VisualPosition endPos = editor.xyToVisualPosition(new Point(0, viewRectangle.y + viewRectangle.height));
int end = endPos.line - 2;
if (lineNumber < start) {
editor.getCaretModel().moveCaretRelatively(0, start - lineNumber, false, false, true);
}
else if (lineNumber > end) {
editor.getCaretModel().moveCaretRelatively(0, end - lineNumber, false, false, true);
}
}
public static void moveCaretRelativelyAndScroll(@NotNull Editor editor,
int columnShift,
int lineShift,
boolean withSelection) {
Rectangle visibleArea = editor.getScrollingModel().getVisibleArea();
VisualPosition pos = editor.getCaretModel().getVisualPosition();
Point caretLocation = editor.visualPositionToXY(pos);
int caretVShift = caretLocation.y - visibleArea.y;
editor.getCaretModel().moveCaretRelatively(columnShift, lineShift, withSelection, false, false);
VisualPosition caretPos = editor.getCaretModel().getVisualPosition();
Point caretLocation2 = editor.visualPositionToXY(caretPos);
final boolean scrollToCaret = !(editor instanceof EditorImpl) || ((EditorImpl)editor).isScrollToCaret();
if (scrollToCaret) {
editor.getScrollingModel().scrollVertically(caretLocation2.y - caretVShift);
}
}
public static void indentLine(Project project, @NotNull Editor editor, int lineNumber, int indent) {
int caretOffset = editor.getCaretModel().getOffset();
int newCaretOffset = indentLine(project, editor, lineNumber, indent, caretOffset);
editor.getCaretModel().moveToOffset(newCaretOffset);
}
// This method avoid moving caret directly, so it's suitable for invocation in bulk mode.
// It does calculate (and returns) target caret position.
public static int indentLine(Project project, @NotNull Editor editor, int lineNumber, int indent, int caretOffset) {
EditorSettings editorSettings = editor.getSettings();
int tabSize = editorSettings.getTabSize(project);
Document document = editor.getDocument();
CharSequence text = document.getImmutableCharSequence();
int spacesEnd = 0;
int lineStart = 0;
int lineEnd = 0;
int tabsEnd = 0;
if (lineNumber < document.getLineCount()) {
lineStart = document.getLineStartOffset(lineNumber);
lineEnd = document.getLineEndOffset(lineNumber);
spacesEnd = lineStart;
boolean inTabs = true;
for (; spacesEnd <= lineEnd; spacesEnd++) {
if (spacesEnd == lineEnd) {
break;
}
char c = text.charAt(spacesEnd);
if (c != '\t') {
if (inTabs) {
inTabs = false;
tabsEnd = spacesEnd;
}
if (c != ' ') break;
}
}
if (inTabs) {
tabsEnd = lineEnd;
}
}
int newCaretOffset = caretOffset;
if (newCaretOffset >= lineStart && newCaretOffset < lineEnd && spacesEnd == lineEnd) {
spacesEnd = newCaretOffset;
tabsEnd = Math.min(spacesEnd, tabsEnd);
}
int oldLength = getSpaceWidthInColumns(text, lineStart, spacesEnd, tabSize);
tabsEnd = getSpaceWidthInColumns(text, lineStart, tabsEnd, tabSize);
int newLength = oldLength + indent;
if (newLength < 0) {
newLength = 0;
}
tabsEnd += indent;
if (tabsEnd < 0) tabsEnd = 0;
if (!shouldUseSmartTabs(project, editor)) tabsEnd = newLength;
StringBuilder buf = new StringBuilder(newLength);
for (int i = 0; i < newLength;) {
if (tabSize > 0 && editorSettings.isUseTabCharacter(project) && i + tabSize <= tabsEnd) {
buf.append('\t');
//noinspection AssignmentToForLoopParameter
i += tabSize;
}
else {
buf.append(' ');
//noinspection AssignmentToForLoopParameter
i++;
}
}
int newSpacesEnd = lineStart + buf.length();
if (newCaretOffset >= spacesEnd) {
newCaretOffset += buf.length() - (spacesEnd - lineStart);
}
else if (newCaretOffset >= lineStart && newCaretOffset < spacesEnd && newCaretOffset > newSpacesEnd) {
newCaretOffset = newSpacesEnd;
}
if (buf.length() > 0) {
if (spacesEnd > lineStart) {
document.replaceString(lineStart, spacesEnd, buf.toString());
}
else {
document.insertString(lineStart, buf.toString());
}
}
else {
if (spacesEnd > lineStart) {
document.deleteString(lineStart, spacesEnd);
}
}
return newCaretOffset;
}
private static int getSpaceWidthInColumns(CharSequence seq, int startOffset, int endOffset, int tabSize) {
int result = 0;
for (int i = startOffset; i < endOffset; i++) {
if (seq.charAt(i) == '\t') {
result = (result / tabSize + 1) * tabSize;
}
else {
result++;
}
}
return result;
}
private static boolean shouldUseSmartTabs(Project project, @NotNull Editor editor) {
if (!(editor instanceof EditorEx)) return false;
PsiFile file = PsiDocumentManager.getInstance(project).getPsiFile(editor.getDocument());
return CodeStyleSettingsManager.getSettings(project).getIndentOptionsByFile(file).SMART_TABS;
}
public static boolean isWordOrLexemeStart(@NotNull Editor editor, int offset, boolean isCamel) {
CharSequence chars = editor.getDocument().getCharsSequence();
return isWordStart(chars, offset, isCamel) || !isWordEnd(chars, offset, isCamel) && isLexemeBoundary(editor, offset);
}
public static boolean isWordOrLexemeEnd(@NotNull Editor editor, int offset, boolean isCamel) {
CharSequence chars = editor.getDocument().getCharsSequence();
return isWordEnd(chars, offset, isCamel) || !isWordStart(chars, offset, isCamel) && isLexemeBoundary(editor, offset);
}
/**
* Finds out whether there's a boundary between two lexemes of different type at given offset.
*/
public static boolean isLexemeBoundary(@NotNull Editor editor, int offset) {
if (!(editor instanceof EditorEx) || offset <= 0 || offset >= editor.getDocument().getTextLength()) return false;
if (CharArrayUtil.isEmptyOrSpaces(editor.getDocument().getImmutableCharSequence(), offset - 1, offset + 1)) return false;
EditorHighlighter highlighter = ((EditorEx)editor).getHighlighter();
HighlighterIterator it = highlighter.createIterator(offset);
if (it.getStart() != offset) {
return false;
}
IElementType rightToken = it.getTokenType();
it.retreat();
IElementType leftToken = it.getTokenType();
return !Comparing.equal(leftToken, rightToken);
}
public static boolean isWordStart(@NotNull CharSequence text, int offset, boolean isCamel) {
char prev = offset > 0 ? text.charAt(offset - 1) : 0;
char current = text.charAt(offset);
final boolean firstIsIdentifierPart = Character.isJavaIdentifierPart(prev);
final boolean secondIsIdentifierPart = Character.isJavaIdentifierPart(current);
if (!firstIsIdentifierPart && secondIsIdentifierPart) {
return true;
}
if (isCamel && firstIsIdentifierPart && secondIsIdentifierPart && isHumpBound(text, offset, true)) {
return true;
}
return (Character.isWhitespace(prev) || firstIsIdentifierPart) &&
!Character.isWhitespace(current) && !secondIsIdentifierPart;
}
private static boolean isLowerCaseOrDigit(char c) {
return Character.isLowerCase(c) || Character.isDigit(c);
}
public static boolean isWordEnd(@NotNull CharSequence text, int offset, boolean isCamel) {
char prev = offset > 0 ? text.charAt(offset - 1) : 0;
char current = text.charAt(offset);
char next = offset + 1 < text.length() ? text.charAt(offset + 1) : 0;
final boolean firstIsIdentifierPart = Character.isJavaIdentifierPart(prev);
final boolean secondIsIdentifierPart = Character.isJavaIdentifierPart(current);
if (firstIsIdentifierPart && !secondIsIdentifierPart) {
return true;
}
if (isCamel) {
if (firstIsIdentifierPart
&& (Character.isLowerCase(prev) && Character.isUpperCase(current)
|| prev != '_' && current == '_'
|| Character.isUpperCase(prev) && Character.isUpperCase(current) && Character.isLowerCase(next)))
{
return true;
}
}
return !Character.isWhitespace(prev) && !firstIsIdentifierPart &&
(Character.isWhitespace(current) || secondIsIdentifierPart);
}
/**
* Depending on the current caret position and 'smart Home' editor settings, moves caret to the start of current visual line
* or to the first non-whitespace character on it.
*
* @param isWithSelection if true - sets selection from old caret position to the new one, if false - clears selection
*
* @see EditorActionUtil#moveCaretToLineStartIgnoringSoftWraps(Editor)
*/
public static void moveCaretToLineStart(@NotNull Editor editor, boolean isWithSelection) {
Document document = editor.getDocument();
SelectionModel selectionModel = editor.getSelectionModel();
int selectionStart = selectionModel.getLeadSelectionOffset();
CaretModel caretModel = editor.getCaretModel();
LogicalPosition blockSelectionStart = caretModel.getLogicalPosition();
EditorSettings editorSettings = editor.getSettings();
int logCaretLine = caretModel.getLogicalPosition().line;
VisualPosition currentVisCaret = caretModel.getVisualPosition();
VisualPosition caretLogLineStartVis = editor.offsetToVisualPosition(document.getLineStartOffset(logCaretLine));
if (currentVisCaret.line > caretLogLineStartVis.line) {
// Caret is located not at the first visual line of soft-wrapped logical line.
if (editorSettings.isSmartHome()) {
moveCaretToStartOfSoftWrappedLine(editor, currentVisCaret, currentVisCaret.line - caretLogLineStartVis.line);
}
else {
caretModel.moveToVisualPosition(new VisualPosition(currentVisCaret.line, 0));
}
setupSelection(editor, isWithSelection, selectionStart, blockSelectionStart);
EditorModificationUtil.scrollToCaret(editor);
return;
}
// Skip folded lines.
int logLineToUse = logCaretLine - 1;
while (logLineToUse >= 0 && editor.offsetToVisualPosition(document.getLineEndOffset(logLineToUse)).line == currentVisCaret.line) {
logLineToUse--;
}
logLineToUse++;
if (logLineToUse >= document.getLineCount() || !editorSettings.isSmartHome()) {
editor.getCaretModel().moveToLogicalPosition(new LogicalPosition(logLineToUse, 0));
}
else if (logLineToUse == logCaretLine) {
int line = currentVisCaret.line;
int column;
if (currentVisCaret.column == 0) {
column = findSmartIndentColumn(editor, currentVisCaret.line);
}
else {
column = findFirstNonSpaceColumnOnTheLine(editor, currentVisCaret.line);
if (column >= currentVisCaret.column) {
column = 0;
}
}
caretModel.moveToVisualPosition(new VisualPosition(line, Math.max(column, 0)));
}
else {
LogicalPosition logLineEndLog = editor.offsetToLogicalPosition(document.getLineEndOffset(logLineToUse));
VisualPosition logLineEndVis = editor.logicalToVisualPosition(logLineEndLog);
if (logLineEndLog.softWrapLinesOnCurrentLogicalLine > 0) {
moveCaretToStartOfSoftWrappedLine(editor, logLineEndVis, logLineEndLog.softWrapLinesOnCurrentLogicalLine);
}
else {
int line = logLineEndVis.line;
if (currentVisCaret.column == 0 && editorSettings.isSmartHome()) {
findSmartIndentColumn(editor, line);
}
int column = 0;
caretModel.moveToVisualPosition(new VisualPosition(line, column));
}
}
setupSelection(editor, isWithSelection, selectionStart, blockSelectionStart);
EditorModificationUtil.scrollToCaret(editor);
}
private static void moveCaretToStartOfSoftWrappedLine(@NotNull Editor editor, VisualPosition currentVisual, int softWrappedLines) {
CaretModel caretModel = editor.getCaretModel();
LogicalPosition startLineLogical = editor.visualToLogicalPosition(new VisualPosition(currentVisual.line, 0));
int startLineOffset = editor.logicalPositionToOffset(startLineLogical);
SoftWrapModel softWrapModel = editor.getSoftWrapModel();
SoftWrap softWrap = softWrapModel.getSoftWrap(startLineOffset);
if (softWrap == null) {
// Don't expect to be here.
int column = findFirstNonSpaceColumnOnTheLine(editor, currentVisual.line);
int columnToMove = column;
if (column < 0 || currentVisual.column <= column && currentVisual.column > 0) {
columnToMove = 0;
}
caretModel.moveToVisualPosition(new VisualPosition(currentVisual.line, columnToMove));
return;
}
if (currentVisual.column > softWrap.getIndentInColumns()) {
caretModel.moveToOffset(softWrap.getStart());
}
else if (currentVisual.column > 0) {
caretModel.moveToVisualPosition(new VisualPosition(currentVisual.line, 0));
}
else {
// We assume that caret is already located at zero visual column of soft-wrapped line if control flow reaches this place.
int newVisualCaretLine = currentVisual.line - 1;
int newVisualCaretColumn = -1;
if (softWrappedLines > 1) {
int offset = editor.logicalPositionToOffset(editor.visualToLogicalPosition(new VisualPosition(newVisualCaretLine, 0)));
SoftWrap prevLineSoftWrap = softWrapModel.getSoftWrap(offset);
if (prevLineSoftWrap != null) {
newVisualCaretColumn = prevLineSoftWrap.getIndentInColumns();
}
}
if (newVisualCaretColumn < 0) {
newVisualCaretColumn = findFirstNonSpaceColumnOnTheLine(editor, newVisualCaretLine);
}
caretModel.moveToVisualPosition(new VisualPosition(newVisualCaretLine, newVisualCaretColumn));
}
}
private static int findSmartIndentColumn(@NotNull Editor editor, int visualLine) {
for (int i = visualLine; i >= 0; i--) {
int column = findFirstNonSpaceColumnOnTheLine(editor, i);
if (column >= 0) {
return column;
}
}
return 0;
}
/**
* Tries to find visual column that points to the first non-white space symbol at the visual line at the given editor.
*
* @param editor target editor
* @param visualLineNumber target visual line
* @return visual column that points to the first non-white space symbol at the target visual line if the one exists;
* '-1' otherwise
*/
public static int findFirstNonSpaceColumnOnTheLine(@NotNull Editor editor, int visualLineNumber) {
Document document = editor.getDocument();
VisualPosition visLine = new VisualPosition(visualLineNumber, 0);
int logLine = editor.visualToLogicalPosition(visLine).line;
int logLineStartOffset = document.getLineStartOffset(logLine);
int logLineEndOffset = document.getLineEndOffset(logLine);
LogicalPosition logLineStart = editor.offsetToLogicalPosition(logLineStartOffset);
VisualPosition visLineStart = editor.logicalToVisualPosition(logLineStart);
boolean softWrapIntroducedLine = visLineStart.line != visualLineNumber;
if (!softWrapIntroducedLine) {
int offset = findFirstNonSpaceOffsetInRange(document.getCharsSequence(), logLineStartOffset, logLineEndOffset);
if (offset >= 0) {
return EditorUtil.calcColumnNumber(editor, document.getCharsSequence(), logLineStartOffset, offset);
}
else {
return -1;
}
}
int lineFeedsToSkip = visualLineNumber - visLineStart.line;
List softWraps = editor.getSoftWrapModel().getSoftWrapsForLine(logLine);
for (SoftWrap softWrap : softWraps) {
CharSequence softWrapText = softWrap.getText();
int softWrapLineFeedsNumber = StringUtil.countNewLines(softWrapText);
if (softWrapLineFeedsNumber < lineFeedsToSkip) {
lineFeedsToSkip -= softWrapLineFeedsNumber;
continue;
}
// Point to the first non-white space symbol at the target soft wrap visual line or to the first non-white space symbol
// of document line that follows it if possible.
int softWrapTextLength = softWrapText.length();
boolean skip = true;
for (int j = 0; j < softWrapTextLength; j++) {
if (softWrapText.charAt(j) == '\n') {
skip = --lineFeedsToSkip > 0;
continue;
}
if (skip) {
continue;
}
int nextSoftWrapLineFeedOffset = StringUtil.indexOf(softWrapText, '\n', j, softWrapTextLength);
int end = findFirstNonSpaceOffsetInRange(softWrapText, j, softWrapTextLength);
if (end >= 0) {
// Non space symbol is contained at soft wrap text after offset that corresponds to the target visual line start.
if (nextSoftWrapLineFeedOffset < 0 || end < nextSoftWrapLineFeedOffset) {
return EditorUtil.calcColumnNumber(editor, softWrapText, j, end);
}
else {
return -1;
}
}
if (nextSoftWrapLineFeedOffset >= 0) {
// There are soft wrap-introduced visual lines after the target one
return -1;
}
}
int end = findFirstNonSpaceOffsetInRange(document.getCharsSequence(), softWrap.getStart(), logLineEndOffset);
if (end >= 0) {
return EditorUtil.calcColumnNumber(editor, document.getCharsSequence(), softWrap.getStart(), end);
}
else {
return -1;
}
}
return -1;
}
public static int findFirstNonSpaceOffsetOnTheLine(@NotNull Document document, int lineNumber) {
int lineStart = document.getLineStartOffset(lineNumber);
int lineEnd = document.getLineEndOffset(lineNumber);
int result = findFirstNonSpaceOffsetInRange(document.getCharsSequence(), lineStart, lineEnd);
return result >= 0 ? result : lineEnd;
}
/**
* Tries to find non white space symbol at the given range at the given document.
*
* @param text text to be inspected
* @param start target start offset (inclusive)
* @param end target end offset (exclusive)
* @return index of the first non-white space character at the given document at the given range if the one is found;
* '-1' otherwise
*/
public static int findFirstNonSpaceOffsetInRange(@NotNull CharSequence text, int start, int end) {
for (; start < end; start++) {
char c = text.charAt(start);
if (c != ' ' && c != '\t') {
return start;
}
}
return -1;
}
public static void moveCaretToLineEnd(@NotNull Editor editor, boolean isWithSelection) {
moveCaretToLineEnd(editor, isWithSelection, true);
}
/**
* Moves caret to visual line end.
*
* @param editor target editor
* @param isWithSelection whether selection should be set from original caret position to its target position
* @param ignoreTrailingWhitespace if true, line end will be determined while ignoring trailing whitespace, unless caret is
* already at so-determined target position, in which case trailing whitespace will be taken into account
*/
public static void moveCaretToLineEnd(@NotNull Editor editor, boolean isWithSelection, boolean ignoreTrailingWhitespace) {
Document document = editor.getDocument();
SelectionModel selectionModel = editor.getSelectionModel();
int selectionStart = selectionModel.getLeadSelectionOffset();
CaretModel caretModel = editor.getCaretModel();
LogicalPosition blockSelectionStart = caretModel.getLogicalPosition();
SoftWrapModel softWrapModel = editor.getSoftWrapModel();
int lineNumber = editor.getCaretModel().getLogicalPosition().line;
if (lineNumber >= document.getLineCount()) {
LogicalPosition pos = new LogicalPosition(lineNumber, 0);
editor.getCaretModel().moveToLogicalPosition(pos);
setupSelection(editor, isWithSelection, selectionStart, blockSelectionStart);
EditorModificationUtil.scrollToCaret(editor);
return;
}
VisualPosition currentVisualCaret = editor.getCaretModel().getVisualPosition();
VisualPosition visualEndOfLineWithCaret
= new VisualPosition(currentVisualCaret.line, EditorUtil.getLastVisualLineColumnNumber(editor, currentVisualCaret.line), true);
// There is a possible case that the caret is already located at the visual end of line and the line is soft wrapped.
// We want to move the caret to the end of the next visual line then.
if (currentVisualCaret.equals(visualEndOfLineWithCaret)) {
LogicalPosition logical = editor.visualToLogicalPosition(visualEndOfLineWithCaret);
int offset = editor.logicalPositionToOffset(logical);
if (offset < editor.getDocument().getTextLength()) {
SoftWrap softWrap = softWrapModel.getSoftWrap(offset);
if (softWrap == null) {
// Same offset may correspond to positions on different visual lines in case of soft wraps presence
// (all soft-wrap introduced virtual text is mapped to the same offset as the first document symbol after soft wrap).
// Hence, we check for soft wraps presence at two offsets.
softWrap = softWrapModel.getSoftWrap(offset + 1);
}
int line = currentVisualCaret.line;
int column = currentVisualCaret.column;
if (softWrap != null) {
line++;
column = EditorUtil.getLastVisualLineColumnNumber(editor, line);
}
visualEndOfLineWithCaret = new VisualPosition(line, column, true);
}
}
LogicalPosition logLineEnd = editor.visualToLogicalPosition(visualEndOfLineWithCaret);
int offset = editor.logicalPositionToOffset(logLineEnd);
lineNumber = logLineEnd.line;
int newOffset = offset;
CharSequence text = document.getCharsSequence();
for (int i = newOffset - 1; i >= document.getLineStartOffset(lineNumber); i--) {
if (softWrapModel.getSoftWrap(i) != null) {
newOffset = offset;
break;
}
if (text.charAt(i) != ' ' && text.charAt(i) != '\t') {
break;
}
newOffset = i;
}
// Move to the calculated end of visual line if caret is located on a last non-white space symbols on a line and there are
// remaining white space symbols.
if (newOffset == offset || newOffset == caretModel.getOffset() || !ignoreTrailingWhitespace) {
caretModel.moveToVisualPosition(visualEndOfLineWithCaret);
}
else {
if (editor instanceof EditorImpl && ((EditorImpl)editor).myUseNewRendering) {
caretModel.moveToLogicalPosition(editor.offsetToLogicalPosition(newOffset).leanForward(true));
}
else {
caretModel.moveToOffset(newOffset);
}
}
EditorModificationUtil.scrollToCaret(editor);
setupSelection(editor, isWithSelection, selectionStart, blockSelectionStart);
}
public static void moveCaretToNextWord(@NotNull Editor editor, boolean isWithSelection, boolean camel) {
Document document = editor.getDocument();
SelectionModel selectionModel = editor.getSelectionModel();
int selectionStart = selectionModel.getLeadSelectionOffset();
CaretModel caretModel = editor.getCaretModel();
LogicalPosition blockSelectionStart = caretModel.getLogicalPosition();
int offset = caretModel.getOffset();
if (offset == document.getTextLength()) {
return;
}
int newOffset;
FoldRegion currentFoldRegion = editor.getFoldingModel().getCollapsedRegionAtOffset(offset);
if (currentFoldRegion != null) {
newOffset = currentFoldRegion.getEndOffset();
}
else {
newOffset = offset + 1;
int lineNumber = caretModel.getLogicalPosition().line;
if (lineNumber >= document.getLineCount()) return;
int maxOffset = document.getLineEndOffset(lineNumber);
if (newOffset > maxOffset) {
if (lineNumber + 1 >= document.getLineCount()) {
return;
}
maxOffset = document.getLineEndOffset(lineNumber + 1);
}
for (; newOffset < maxOffset; newOffset++) {
if (isWordOrLexemeStart(editor, newOffset, camel)) {
break;
}
}
FoldRegion foldRegion = editor.getFoldingModel().getCollapsedRegionAtOffset(newOffset);
if (foldRegion != null) {
newOffset = foldRegion.getStartOffset();
}
}
if (editor instanceof EditorImpl) {
int boundaryOffset = ((EditorImpl)editor).findNearestDirectionBoundary(offset, true);
if (boundaryOffset >= 0) {
newOffset = Math.min(boundaryOffset, newOffset);
}
}
caretModel.moveToOffset(newOffset);
EditorModificationUtil.scrollToCaret(editor);
setupSelection(editor, isWithSelection, selectionStart, blockSelectionStart);
}
private static void setupSelection(@NotNull Editor editor,
boolean isWithSelection,
int selectionStart,
@NotNull LogicalPosition blockSelectionStart) {
SelectionModel selectionModel = editor.getSelectionModel();
CaretModel caretModel = editor.getCaretModel();
if (isWithSelection) {
if (editor.isColumnMode() && !caretModel.supportsMultipleCarets()) {
selectionModel.setBlockSelection(blockSelectionStart, caretModel.getLogicalPosition());
}
else {
selectionModel.setSelection(selectionStart, caretModel.getVisualPosition(), caretModel.getOffset());
}
}
else {
selectionModel.removeSelection();
}
selectNonexpandableFold(editor);
}
private static final Key PREV_POS = Key.create("PREV_POS");
public static void selectNonexpandableFold(@NotNull Editor editor) {
final CaretModel caretModel = editor.getCaretModel();
final VisualPosition pos = caretModel.getVisualPosition();
VisualPosition prevPos = editor.getUserData(PREV_POS);
if (prevPos != null) {
int columnShift = pos.line == prevPos.line ? pos.column - prevPos.column : 0;
int caret = caretModel.getOffset();
final FoldRegion collapsedUnderCaret = editor.getFoldingModel().getCollapsedRegionAtOffset(caret);
if (collapsedUnderCaret != null && collapsedUnderCaret.shouldNeverExpand()) {
if (caret > collapsedUnderCaret.getStartOffset() && columnShift > 0) {
caretModel.moveToOffset(collapsedUnderCaret.getEndOffset());
}
else if (caret + 1 < collapsedUnderCaret.getEndOffset() && columnShift < 0) {
caretModel.moveToOffset(collapsedUnderCaret.getStartOffset());
}
editor.getSelectionModel().setSelection(collapsedUnderCaret.getStartOffset(), collapsedUnderCaret.getEndOffset());
}
}
editor.putUserData(PREV_POS, pos);
}
public static void moveCaretToPreviousWord(@NotNull Editor editor, boolean isWithSelection, boolean camel) {
Document document = editor.getDocument();
SelectionModel selectionModel = editor.getSelectionModel();
int selectionStart = selectionModel.getLeadSelectionOffset();
CaretModel caretModel = editor.getCaretModel();
LogicalPosition blockSelectionStart = caretModel.getLogicalPosition();
int offset = editor.getCaretModel().getOffset();
if (offset == 0) return;
int newOffset;
FoldRegion currentFoldRegion = editor.getFoldingModel().getCollapsedRegionAtOffset(offset - 1);
if (currentFoldRegion != null) {
newOffset = currentFoldRegion.getStartOffset();
}
else {
int lineNumber = editor.getCaretModel().getLogicalPosition().line;
newOffset = offset - 1;
int minOffset = lineNumber > 0 ? document.getLineEndOffset(lineNumber - 1) : 0;
for (; newOffset > minOffset; newOffset--) {
if (isWordOrLexemeStart(editor, newOffset, camel)) break;
}
FoldRegion foldRegion = editor.getFoldingModel().getCollapsedRegionAtOffset(newOffset);
if (foldRegion != null && newOffset > foldRegion.getStartOffset()) {
newOffset = foldRegion.getEndOffset();
}
}
if (editor instanceof EditorImpl && ((EditorImpl)editor).myUseNewRendering) {
int boundaryOffset = ((EditorImpl)editor).findNearestDirectionBoundary(offset, false);
if (boundaryOffset >= 0) {
newOffset = Math.max(boundaryOffset, newOffset);
}
caretModel.moveToLogicalPosition(editor.offsetToLogicalPosition(newOffset).leanForward(true));
}
else {
editor.getCaretModel().moveToOffset(newOffset);
}
EditorModificationUtil.scrollToCaret(editor);
setupSelection(editor, isWithSelection, selectionStart, blockSelectionStart);
}
public static void moveCaretPageUp(@NotNull Editor editor, boolean isWithSelection) {
int lineHeight = editor.getLineHeight();
Rectangle visibleArea = editor.getScrollingModel().getVisibleArea();
int linesIncrement = visibleArea.height / lineHeight;
editor.getScrollingModel().scrollVertically(visibleArea.y - visibleArea.y % lineHeight - linesIncrement * lineHeight);
int lineShift = -linesIncrement;
editor.getCaretModel().moveCaretRelatively(0, lineShift, isWithSelection, editor.isColumnMode(), true);
}
public static void moveCaretPageDown(@NotNull Editor editor, boolean isWithSelection) {
int lineHeight = editor.getLineHeight();
Rectangle visibleArea = editor.getScrollingModel().getVisibleArea();
int linesIncrement = visibleArea.height / lineHeight;
int allowedBottom = ((EditorEx)editor).getContentSize().height - visibleArea.height;
editor.getScrollingModel().scrollVertically(
Math.min(allowedBottom, visibleArea.y - visibleArea.y % lineHeight + linesIncrement * lineHeight));
editor.getCaretModel().moveCaretRelatively(0, linesIncrement, isWithSelection, editor.isColumnMode(), true);
}
public static void moveCaretPageTop(@NotNull Editor editor, boolean isWithSelection) {
int lineHeight = editor.getLineHeight();
SelectionModel selectionModel = editor.getSelectionModel();
int selectionStart = selectionModel.getLeadSelectionOffset();
CaretModel caretModel = editor.getCaretModel();
LogicalPosition blockSelectionStart = caretModel.getLogicalPosition();
Rectangle visibleArea = editor.getScrollingModel().getVisibleArea();
int lineNumber = visibleArea.y / lineHeight;
if (visibleArea.y % lineHeight > 0) {
lineNumber++;
}
VisualPosition pos = new VisualPosition(lineNumber, editor.getCaretModel().getVisualPosition().column);
editor.getCaretModel().moveToVisualPosition(pos);
setupSelection(editor, isWithSelection, selectionStart, blockSelectionStart);
}
public static void moveCaretPageBottom(@NotNull Editor editor, boolean isWithSelection) {
int lineHeight = editor.getLineHeight();
SelectionModel selectionModel = editor.getSelectionModel();
int selectionStart = selectionModel.getLeadSelectionOffset();
CaretModel caretModel = editor.getCaretModel();
LogicalPosition blockSelectionStart = caretModel.getLogicalPosition();
Rectangle visibleArea = editor.getScrollingModel().getVisibleArea();
int lineNumber = (visibleArea.y + visibleArea.height) / lineHeight - 1;
VisualPosition pos = new VisualPosition(lineNumber, editor.getCaretModel().getVisualPosition().column);
editor.getCaretModel().moveToVisualPosition(pos);
setupSelection(editor, isWithSelection, selectionStart, blockSelectionStart);
}
public static EditorPopupHandler createEditorPopupHandler(@NotNull final String groupId) {
return new EditorPopupHandler() {
@Override
public void invokePopup(final EditorMouseEvent event) {
if (!event.isConsumed() && event.getArea() == EditorMouseEventArea.EDITING_AREA) {
ActionGroup group = (ActionGroup)CustomActionsSchema.getInstance().getCorrectedAction(groupId);
showEditorPopup(event, group);
}
}
};
}
public static EditorPopupHandler createEditorPopupHandler(@NotNull final ActionGroup group) {
return new EditorPopupHandler() {
@Override
public void invokePopup(final EditorMouseEvent event) {
showEditorPopup(event, group);
}
};
}
private static void showEditorPopup(final EditorMouseEvent event, @NotNull final ActionGroup group) {
if (!event.isConsumed() && event.getArea() == EditorMouseEventArea.EDITING_AREA) {
ActionPopupMenu popupMenu = ActionManager.getInstance().createActionPopupMenu(ActionPlaces.EDITOR_POPUP, group);
MouseEvent e = event.getMouseEvent();
final Component c = e.getComponent();
if (c != null && c.isShowing()) {
popupMenu.getComponent().show(c, e.getX(), e.getY());
}
e.consume();
}
}
public static boolean isHumpBound(@NotNull CharSequence editorText, int offset, boolean start) {
final char prevChar = editorText.charAt(offset - 1);
final char curChar = editorText.charAt(offset);
final char nextChar = offset + 1 < editorText.length() ? editorText.charAt(offset + 1) : 0; // 0x00 is not lowercase.
return isLowerCaseOrDigit(prevChar) && Character.isUpperCase(curChar) ||
start && prevChar == '_' && curChar != '_' ||
!start && prevChar != '_' && curChar == '_' ||
start && prevChar == '$' && Character.isLetterOrDigit(curChar) ||
!start && Character.isLetterOrDigit(prevChar) && curChar == '$' ||
Character.isUpperCase(prevChar) && Character.isUpperCase(curChar) && Character.isLowerCase(nextChar);
}
/**
* This method moves caret to the nearest preceding visual line start, which is not a soft line wrap
*
* @see EditorUtil#calcCaretLineRange(Editor)
* @see EditorActionUtil#moveCaretToLineStart(Editor, boolean)
*/
public static void moveCaretToLineStartIgnoringSoftWraps(@NotNull Editor editor) {
editor.getCaretModel().moveToLogicalPosition(EditorUtil.calcCaretLineRange(editor).first);
}
/**
* This method will make required expansions of collapsed region to make given offset 'visible'.
*/
public static void makePositionVisible(@NotNull final Editor editor, final int offset) {
FoldingModel foldingModel = editor.getFoldingModel();
FoldRegion collapsedRegionAtOffset;
while ((collapsedRegionAtOffset = foldingModel.getCollapsedRegionAtOffset(offset)) != null) {
final FoldRegion region = collapsedRegionAtOffset;
foldingModel.runBatchFoldingOperation(new Runnable() {
@Override
public void run() {
region.setExpanded(true);
}
});
}
}
/**
* Clones caret in a given direction if it's possible. If there already exists a caret at the given direction, removes the current caret.
*
* @param editor editor to perform operation in
* @param caret caret to work on
* @param above whether to clone the caret above or below
* @return false if the operation cannot be performed due to current caret being at the edge (top or bottom) of the document,
* and true otherwise
*/
public static boolean cloneOrRemoveCaret(Editor editor, Caret caret, boolean above) {
if (above && caret.getLogicalPosition().line == 0) {
return false;
}
if (!above && caret.getLogicalPosition().line == editor.getDocument().getLineCount() - 1) {
return false;
}
if (caret.clone(above) == null) {
editor.getCaretModel().removeCaret(caret);
}
return true;
}
}
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