monaco-editor
Version:
A browser based code editor
310 lines (309 loc) • 18.4 kB
JavaScript
/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import * as strings from '../../../base/common/strings.js';
import { ShiftCommand } from '../../common/commands/shiftCommand.js';
import { Range } from '../../common/core/range.js';
import { Selection } from '../../common/core/selection.js';
import { IndentAction } from '../../common/modes/languageConfiguration.js';
import { LanguageConfigurationRegistry } from '../../common/modes/languageConfigurationRegistry.js';
import * as indentUtils from '../indentation/indentUtils.js';
var MoveLinesCommand = /** @class */ (function () {
function MoveLinesCommand(selection, isMovingDown, autoIndent) {
this._selection = selection;
this._isMovingDown = isMovingDown;
this._autoIndent = autoIndent;
this._moveEndLineSelectionShrink = false;
}
MoveLinesCommand.prototype.getEditOperations = function (model, builder) {
var modelLineCount = model.getLineCount();
if (this._isMovingDown && this._selection.endLineNumber === modelLineCount) {
return;
}
if (!this._isMovingDown && this._selection.startLineNumber === 1) {
return;
}
this._moveEndPositionDown = false;
var s = this._selection;
if (s.startLineNumber < s.endLineNumber && s.endColumn === 1) {
this._moveEndPositionDown = true;
s = s.setEndPosition(s.endLineNumber - 1, model.getLineMaxColumn(s.endLineNumber - 1));
}
var tabSize = model.getOptions().tabSize;
var insertSpaces = model.getOptions().insertSpaces;
var indentConverter = this.buildIndentConverter(tabSize);
var virtualModel = {
getLineTokens: function (lineNumber) {
return model.getLineTokens(lineNumber);
},
getLanguageIdentifier: function () {
return model.getLanguageIdentifier();
},
getLanguageIdAtPosition: function (lineNumber, column) {
return model.getLanguageIdAtPosition(lineNumber, column);
},
getLineContent: null,
};
if (s.startLineNumber === s.endLineNumber && model.getLineMaxColumn(s.startLineNumber) === 1) {
// Current line is empty
var lineNumber = s.startLineNumber;
var otherLineNumber = (this._isMovingDown ? lineNumber + 1 : lineNumber - 1);
if (model.getLineMaxColumn(otherLineNumber) === 1) {
// Other line number is empty too, so no editing is needed
// Add a no-op to force running by the model
builder.addEditOperation(new Range(1, 1, 1, 1), null);
}
else {
// Type content from other line number on line number
builder.addEditOperation(new Range(lineNumber, 1, lineNumber, 1), model.getLineContent(otherLineNumber));
// Remove content from other line number
builder.addEditOperation(new Range(otherLineNumber, 1, otherLineNumber, model.getLineMaxColumn(otherLineNumber)), null);
}
// Track selection at the other line number
s = new Selection(otherLineNumber, 1, otherLineNumber, 1);
}
else {
var movingLineNumber_1;
var movingLineText = void 0;
if (this._isMovingDown) {
movingLineNumber_1 = s.endLineNumber + 1;
movingLineText = model.getLineContent(movingLineNumber_1);
// Delete line that needs to be moved
builder.addEditOperation(new Range(movingLineNumber_1 - 1, model.getLineMaxColumn(movingLineNumber_1 - 1), movingLineNumber_1, model.getLineMaxColumn(movingLineNumber_1)), null);
var insertingText_1 = movingLineText;
if (this.shouldAutoIndent(model, s)) {
var movingLineMatchResult = this.matchEnterRule(model, indentConverter, tabSize, movingLineNumber_1, s.startLineNumber - 1);
// if s.startLineNumber - 1 matches onEnter rule, we still honor that.
if (movingLineMatchResult !== null) {
var oldIndentation = strings.getLeadingWhitespace(model.getLineContent(movingLineNumber_1));
var newSpaceCnt = movingLineMatchResult + indentUtils.getSpaceCnt(oldIndentation, tabSize);
var newIndentation = indentUtils.generateIndent(newSpaceCnt, tabSize, insertSpaces);
insertingText_1 = newIndentation + this.trimLeft(movingLineText);
}
else {
// no enter rule matches, let's check indentatin rules then.
virtualModel.getLineContent = function (lineNumber) {
if (lineNumber === s.startLineNumber) {
return model.getLineContent(movingLineNumber_1);
}
else {
return model.getLineContent(lineNumber);
}
};
var indentOfMovingLine = LanguageConfigurationRegistry.getGoodIndentForLine(virtualModel, model.getLanguageIdAtPosition(movingLineNumber_1, 1), s.startLineNumber, indentConverter);
if (indentOfMovingLine !== null) {
var oldIndentation = strings.getLeadingWhitespace(model.getLineContent(movingLineNumber_1));
var newSpaceCnt = indentUtils.getSpaceCnt(indentOfMovingLine, tabSize);
var oldSpaceCnt = indentUtils.getSpaceCnt(oldIndentation, tabSize);
if (newSpaceCnt !== oldSpaceCnt) {
var newIndentation = indentUtils.generateIndent(newSpaceCnt, tabSize, insertSpaces);
insertingText_1 = newIndentation + this.trimLeft(movingLineText);
}
}
}
// add edit operations for moving line first to make sure it's executed after we make indentation change
// to s.startLineNumber
builder.addEditOperation(new Range(s.startLineNumber, 1, s.startLineNumber, 1), insertingText_1 + '\n');
var ret = this.matchEnterRule(model, indentConverter, tabSize, s.startLineNumber, s.startLineNumber, insertingText_1);
// check if the line being moved before matches onEnter rules, if so let's adjust the indentation by onEnter rules.
if (ret !== null) {
if (ret !== 0) {
this.getIndentEditsOfMovingBlock(model, builder, s, tabSize, insertSpaces, ret);
}
}
else {
// it doesn't match onEnter rules, let's check indentation rules then.
virtualModel.getLineContent = function (lineNumber) {
if (lineNumber === s.startLineNumber) {
return insertingText_1;
}
else if (lineNumber >= s.startLineNumber + 1 && lineNumber <= s.endLineNumber + 1) {
return model.getLineContent(lineNumber - 1);
}
else {
return model.getLineContent(lineNumber);
}
};
var newIndentatOfMovingBlock = LanguageConfigurationRegistry.getGoodIndentForLine(virtualModel, model.getLanguageIdAtPosition(movingLineNumber_1, 1), s.startLineNumber + 1, indentConverter);
if (newIndentatOfMovingBlock !== null) {
var oldIndentation = strings.getLeadingWhitespace(model.getLineContent(s.startLineNumber));
var newSpaceCnt = indentUtils.getSpaceCnt(newIndentatOfMovingBlock, tabSize);
var oldSpaceCnt = indentUtils.getSpaceCnt(oldIndentation, tabSize);
if (newSpaceCnt !== oldSpaceCnt) {
var spaceCntOffset = newSpaceCnt - oldSpaceCnt;
this.getIndentEditsOfMovingBlock(model, builder, s, tabSize, insertSpaces, spaceCntOffset);
}
}
}
}
else {
// Insert line that needs to be moved before
builder.addEditOperation(new Range(s.startLineNumber, 1, s.startLineNumber, 1), insertingText_1 + '\n');
}
}
else {
movingLineNumber_1 = s.startLineNumber - 1;
movingLineText = model.getLineContent(movingLineNumber_1);
// Delete line that needs to be moved
builder.addEditOperation(new Range(movingLineNumber_1, 1, movingLineNumber_1 + 1, 1), null);
// Insert line that needs to be moved after
builder.addEditOperation(new Range(s.endLineNumber, model.getLineMaxColumn(s.endLineNumber), s.endLineNumber, model.getLineMaxColumn(s.endLineNumber)), '\n' + movingLineText);
if (this.shouldAutoIndent(model, s)) {
virtualModel.getLineContent = function (lineNumber) {
if (lineNumber === movingLineNumber_1) {
return model.getLineContent(s.startLineNumber);
}
else {
return model.getLineContent(lineNumber);
}
};
var ret = this.matchEnterRule(model, indentConverter, tabSize, s.startLineNumber, s.startLineNumber - 2);
// check if s.startLineNumber - 2 matches onEnter rules, if so adjust the moving block by onEnter rules.
if (ret !== null) {
if (ret !== 0) {
this.getIndentEditsOfMovingBlock(model, builder, s, tabSize, insertSpaces, ret);
}
}
else {
// it doesn't match any onEnter rule, let's check indentation rules then.
var indentOfFirstLine = LanguageConfigurationRegistry.getGoodIndentForLine(virtualModel, model.getLanguageIdAtPosition(s.startLineNumber, 1), movingLineNumber_1, indentConverter);
if (indentOfFirstLine !== null) {
// adjust the indentation of the moving block
var oldIndent = strings.getLeadingWhitespace(model.getLineContent(s.startLineNumber));
var newSpaceCnt = indentUtils.getSpaceCnt(indentOfFirstLine, tabSize);
var oldSpaceCnt = indentUtils.getSpaceCnt(oldIndent, tabSize);
if (newSpaceCnt !== oldSpaceCnt) {
var spaceCntOffset = newSpaceCnt - oldSpaceCnt;
this.getIndentEditsOfMovingBlock(model, builder, s, tabSize, insertSpaces, spaceCntOffset);
}
}
}
}
}
}
this._selectionId = builder.trackSelection(s);
};
MoveLinesCommand.prototype.buildIndentConverter = function (tabSize) {
return {
shiftIndent: function (indentation) {
var desiredIndentCount = ShiftCommand.shiftIndentCount(indentation, indentation.length + 1, tabSize);
var newIndentation = '';
for (var i = 0; i < desiredIndentCount; i++) {
newIndentation += '\t';
}
return newIndentation;
},
unshiftIndent: function (indentation) {
var desiredIndentCount = ShiftCommand.unshiftIndentCount(indentation, indentation.length + 1, tabSize);
var newIndentation = '';
for (var i = 0; i < desiredIndentCount; i++) {
newIndentation += '\t';
}
return newIndentation;
}
};
};
MoveLinesCommand.prototype.matchEnterRule = function (model, indentConverter, tabSize, line, oneLineAbove, oneLineAboveText) {
var validPrecedingLine = oneLineAbove;
while (validPrecedingLine >= 1) {
// ship empty lines as empty lines just inherit indentation
var lineContent = void 0;
if (validPrecedingLine === oneLineAbove && oneLineAboveText !== undefined) {
lineContent = oneLineAboveText;
}
else {
lineContent = model.getLineContent(validPrecedingLine);
}
var nonWhitespaceIdx = strings.lastNonWhitespaceIndex(lineContent);
if (nonWhitespaceIdx >= 0) {
break;
}
validPrecedingLine--;
}
if (validPrecedingLine < 1 || line > model.getLineCount()) {
return null;
}
var maxColumn = model.getLineMaxColumn(validPrecedingLine);
var enter = LanguageConfigurationRegistry.getEnterAction(model, new Range(validPrecedingLine, maxColumn, validPrecedingLine, maxColumn));
if (enter) {
var enterPrefix = enter.indentation;
var enterAction = enter.enterAction;
if (enterAction.indentAction === IndentAction.None) {
enterPrefix = enter.indentation + enterAction.appendText;
}
else if (enterAction.indentAction === IndentAction.Indent) {
enterPrefix = enter.indentation + enterAction.appendText;
}
else if (enterAction.indentAction === IndentAction.IndentOutdent) {
enterPrefix = enter.indentation;
}
else if (enterAction.indentAction === IndentAction.Outdent) {
enterPrefix = indentConverter.unshiftIndent(enter.indentation) + enterAction.appendText;
}
var movingLineText = model.getLineContent(line);
if (this.trimLeft(movingLineText).indexOf(this.trimLeft(enterPrefix)) >= 0) {
var oldIndentation = strings.getLeadingWhitespace(model.getLineContent(line));
var newIndentation = strings.getLeadingWhitespace(enterPrefix);
var indentMetadataOfMovelingLine = LanguageConfigurationRegistry.getIndentMetadata(model, line);
if (indentMetadataOfMovelingLine !== null && indentMetadataOfMovelingLine & 2 /* DECREASE_MASK */) {
newIndentation = indentConverter.unshiftIndent(newIndentation);
}
var newSpaceCnt = indentUtils.getSpaceCnt(newIndentation, tabSize);
var oldSpaceCnt = indentUtils.getSpaceCnt(oldIndentation, tabSize);
return newSpaceCnt - oldSpaceCnt;
}
}
return null;
};
MoveLinesCommand.prototype.trimLeft = function (str) {
return str.replace(/^\s+/, '');
};
MoveLinesCommand.prototype.shouldAutoIndent = function (model, selection) {
if (!this._autoIndent) {
return false;
}
// if it's not easy to tokenize, we stop auto indent.
if (!model.isCheapToTokenize(selection.startLineNumber)) {
return false;
}
var languageAtSelectionStart = model.getLanguageIdAtPosition(selection.startLineNumber, 1);
var languageAtSelectionEnd = model.getLanguageIdAtPosition(selection.endLineNumber, 1);
if (languageAtSelectionStart !== languageAtSelectionEnd) {
return false;
}
if (LanguageConfigurationRegistry.getIndentRulesSupport(languageAtSelectionStart) === null) {
return false;
}
return true;
};
MoveLinesCommand.prototype.getIndentEditsOfMovingBlock = function (model, builder, s, tabSize, insertSpaces, offset) {
for (var i = s.startLineNumber; i <= s.endLineNumber; i++) {
var lineContent = model.getLineContent(i);
var originalIndent = strings.getLeadingWhitespace(lineContent);
var originalSpacesCnt = indentUtils.getSpaceCnt(originalIndent, tabSize);
var newSpacesCnt = originalSpacesCnt + offset;
var newIndent = indentUtils.generateIndent(newSpacesCnt, tabSize, insertSpaces);
if (newIndent !== originalIndent) {
builder.addEditOperation(new Range(i, 1, i, originalIndent.length + 1), newIndent);
if (i === s.endLineNumber && s.endColumn <= originalIndent.length + 1 && newIndent === '') {
// as users select part of the original indent white spaces
// when we adjust the indentation of endLine, we should adjust the cursor position as well.
this._moveEndLineSelectionShrink = true;
}
}
}
};
MoveLinesCommand.prototype.computeCursorState = function (model, helper) {
var result = helper.getTrackedSelection(this._selectionId);
if (this._moveEndPositionDown) {
result = result.setEndPosition(result.endLineNumber + 1, 1);
}
if (this._moveEndLineSelectionShrink && result.startLineNumber < result.endLineNumber) {
result = result.setEndPosition(result.endLineNumber, 2);
}
return result;
};
return MoveLinesCommand;
}());
export { MoveLinesCommand };