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- /* ***** BEGIN LICENSE BLOCK *****
- * Distributed under the BSD license:
- *
- * Copyright (c) 2010, Ajax.org B.V.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * * Neither the name of Ajax.org B.V. nor the
- * names of its contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * ***** END LICENSE BLOCK ***** */
- define(function(require, exports, module) {
- "use strict";
- var oop = require("../../lib/oop");
- var Behaviour = require("../behaviour").Behaviour;
- var TokenIterator = require("../../token_iterator").TokenIterator;
- var lang = require("../../lib/lang");
- var SAFE_INSERT_IN_TOKENS =
- ["text", "paren.rparen", "punctuation.operator"];
- var SAFE_INSERT_BEFORE_TOKENS =
- ["text", "paren.rparen", "punctuation.operator", "comment"];
- var context;
- var contextCache = {};
- var initContext = function(editor) {
- var id = -1;
- if (editor.multiSelect) {
- id = editor.selection.index;
- if (contextCache.rangeCount != editor.multiSelect.rangeCount)
- contextCache = {rangeCount: editor.multiSelect.rangeCount};
- }
- if (contextCache[id])
- return context = contextCache[id];
- context = contextCache[id] = {
- autoInsertedBrackets: 0,
- autoInsertedRow: -1,
- autoInsertedLineEnd: "",
- maybeInsertedBrackets: 0,
- maybeInsertedRow: -1,
- maybeInsertedLineStart: "",
- maybeInsertedLineEnd: ""
- };
- };
- var getWrapped = function(selection, selected, opening, closing) {
- var rowDiff = selection.end.row - selection.start.row;
- return {
- text: opening + selected + closing,
- selection: [
- 0,
- selection.start.column + 1,
- rowDiff,
- selection.end.column + (rowDiff ? 0 : 1)
- ]
- };
- };
- var CstyleBehaviour = function() {
- this.add("braces", "insertion", function(state, action, editor, session, text) {
- var cursor = editor.getCursorPosition();
- var line = session.doc.getLine(cursor.row);
- if (text == '{') {
- initContext(editor);
- var selection = editor.getSelectionRange();
- var selected = session.doc.getTextRange(selection);
- if (selected !== "" && selected !== "{" && editor.getWrapBehavioursEnabled()) {
- return getWrapped(selection, selected, '{', '}');
- } else if (CstyleBehaviour.isSaneInsertion(editor, session)) {
- if (/[\]\}\)]/.test(line[cursor.column]) || editor.inMultiSelectMode) {
- CstyleBehaviour.recordAutoInsert(editor, session, "}");
- return {
- text: '{}',
- selection: [1, 1]
- };
- } else {
- CstyleBehaviour.recordMaybeInsert(editor, session, "{");
- return {
- text: '{',
- selection: [1, 1]
- };
- }
- }
- } else if (text == '}') {
- initContext(editor);
- var rightChar = line.substring(cursor.column, cursor.column + 1);
- if (rightChar == '}') {
- var matching = session.$findOpeningBracket('}', {column: cursor.column + 1, row: cursor.row});
- if (matching !== null && CstyleBehaviour.isAutoInsertedClosing(cursor, line, text)) {
- CstyleBehaviour.popAutoInsertedClosing();
- return {
- text: '',
- selection: [1, 1]
- };
- }
- }
- } else if (text == "\n" || text == "\r\n") {
- initContext(editor);
- var closing = "";
- if (CstyleBehaviour.isMaybeInsertedClosing(cursor, line)) {
- closing = lang.stringRepeat("}", context.maybeInsertedBrackets);
- CstyleBehaviour.clearMaybeInsertedClosing();
- }
- var rightChar = line.substring(cursor.column, cursor.column + 1);
- if (rightChar === '}') {
- var openBracePos = session.findMatchingBracket({row: cursor.row, column: cursor.column+1}, '}');
- if (!openBracePos)
- return null;
- var next_indent = this.$getIndent(session.getLine(openBracePos.row));
- } else if (closing) {
- var next_indent = this.$getIndent(line);
- } else {
- CstyleBehaviour.clearMaybeInsertedClosing();
- return;
- }
- var indent = next_indent + session.getTabString();
- return {
- text: '\n' + indent + '\n' + next_indent + closing,
- selection: [1, indent.length, 1, indent.length]
- };
- } else {
- CstyleBehaviour.clearMaybeInsertedClosing();
- }
- });
- this.add("braces", "deletion", function(state, action, editor, session, range) {
- var selected = session.doc.getTextRange(range);
- if (!range.isMultiLine() && selected == '{') {
- initContext(editor);
- var line = session.doc.getLine(range.start.row);
- var rightChar = line.substring(range.end.column, range.end.column + 1);
- if (rightChar == '}') {
- range.end.column++;
- return range;
- } else {
- context.maybeInsertedBrackets--;
- }
- }
- });
- this.add("parens", "insertion", function(state, action, editor, session, text) {
- if (text == '(') {
- initContext(editor);
- var selection = editor.getSelectionRange();
- var selected = session.doc.getTextRange(selection);
- if (selected !== "" && editor.getWrapBehavioursEnabled()) {
- return getWrapped(selection, selected, '(', ')');
- } else if (CstyleBehaviour.isSaneInsertion(editor, session)) {
- CstyleBehaviour.recordAutoInsert(editor, session, ")");
- return {
- text: '()',
- selection: [1, 1]
- };
- }
- } else if (text == ')') {
- initContext(editor);
- var cursor = editor.getCursorPosition();
- var line = session.doc.getLine(cursor.row);
- var rightChar = line.substring(cursor.column, cursor.column + 1);
- if (rightChar == ')') {
- var matching = session.$findOpeningBracket(')', {column: cursor.column + 1, row: cursor.row});
- if (matching !== null && CstyleBehaviour.isAutoInsertedClosing(cursor, line, text)) {
- CstyleBehaviour.popAutoInsertedClosing();
- return {
- text: '',
- selection: [1, 1]
- };
- }
- }
- }
- });
- this.add("parens", "deletion", function(state, action, editor, session, range) {
- var selected = session.doc.getTextRange(range);
- if (!range.isMultiLine() && selected == '(') {
- initContext(editor);
- var line = session.doc.getLine(range.start.row);
- var rightChar = line.substring(range.start.column + 1, range.start.column + 2);
- if (rightChar == ')') {
- range.end.column++;
- return range;
- }
- }
- });
- this.add("brackets", "insertion", function(state, action, editor, session, text) {
- if (text == '[') {
- initContext(editor);
- var selection = editor.getSelectionRange();
- var selected = session.doc.getTextRange(selection);
- if (selected !== "" && editor.getWrapBehavioursEnabled()) {
- return getWrapped(selection, selected, '[', ']');
- } else if (CstyleBehaviour.isSaneInsertion(editor, session)) {
- CstyleBehaviour.recordAutoInsert(editor, session, "]");
- return {
- text: '[]',
- selection: [1, 1]
- };
- }
- } else if (text == ']') {
- initContext(editor);
- var cursor = editor.getCursorPosition();
- var line = session.doc.getLine(cursor.row);
- var rightChar = line.substring(cursor.column, cursor.column + 1);
- if (rightChar == ']') {
- var matching = session.$findOpeningBracket(']', {column: cursor.column + 1, row: cursor.row});
- if (matching !== null && CstyleBehaviour.isAutoInsertedClosing(cursor, line, text)) {
- CstyleBehaviour.popAutoInsertedClosing();
- return {
- text: '',
- selection: [1, 1]
- };
- }
- }
- }
- });
- this.add("brackets", "deletion", function(state, action, editor, session, range) {
- var selected = session.doc.getTextRange(range);
- if (!range.isMultiLine() && selected == '[') {
- initContext(editor);
- var line = session.doc.getLine(range.start.row);
- var rightChar = line.substring(range.start.column + 1, range.start.column + 2);
- if (rightChar == ']') {
- range.end.column++;
- return range;
- }
- }
- });
- this.add("string_dquotes", "insertion", function(state, action, editor, session, text) {
- if (text == '"' || text == "'") {
- initContext(editor);
- var quote = text;
- var selection = editor.getSelectionRange();
- var selected = session.doc.getTextRange(selection);
- if (selected !== "" && selected !== "'" && selected != '"' && editor.getWrapBehavioursEnabled()) {
- return getWrapped(selection, selected, quote, quote);
- } else if (!selected) {
- var cursor = editor.getCursorPosition();
- var line = session.doc.getLine(cursor.row);
- var leftChar = line.substring(cursor.column-1, cursor.column);
- var rightChar = line.substring(cursor.column, cursor.column + 1);
-
- var token = session.getTokenAt(cursor.row, cursor.column);
- var rightToken = session.getTokenAt(cursor.row, cursor.column + 1);
- // We're escaped.
- if (leftChar == "\\" && token && /escape/.test(token.type))
- return null;
-
- var stringBefore = token && /string|escape/.test(token.type);
- var stringAfter = !rightToken || /string|escape/.test(rightToken.type);
-
- var pair;
- if (rightChar == quote) {
- pair = stringBefore !== stringAfter;
- } else {
- if (stringBefore && !stringAfter)
- return null; // wrap string with different quote
- if (stringBefore && stringAfter)
- return null; // do not pair quotes inside strings
- var wordRe = session.$mode.tokenRe;
- wordRe.lastIndex = 0;
- var isWordBefore = wordRe.test(leftChar);
- wordRe.lastIndex = 0;
- var isWordAfter = wordRe.test(leftChar);
- if (isWordBefore || isWordAfter)
- return null; // before or after alphanumeric
- if (rightChar && !/[\s;,.})\]\\]/.test(rightChar))
- return null; // there is rightChar and it isn't closing
- pair = true;
- }
- return {
- text: pair ? quote + quote : "",
- selection: [1,1]
- };
- }
- }
- });
- this.add("string_dquotes", "deletion", function(state, action, editor, session, range) {
- var selected = session.doc.getTextRange(range);
- if (!range.isMultiLine() && (selected == '"' || selected == "'")) {
- initContext(editor);
- var line = session.doc.getLine(range.start.row);
- var rightChar = line.substring(range.start.column + 1, range.start.column + 2);
- if (rightChar == selected) {
- range.end.column++;
- return range;
- }
- }
- });
- };
-
- CstyleBehaviour.isSaneInsertion = function(editor, session) {
- var cursor = editor.getCursorPosition();
- var iterator = new TokenIterator(session, cursor.row, cursor.column);
-
- // Don't insert in the middle of a keyword/identifier/lexical
- if (!this.$matchTokenType(iterator.getCurrentToken() || "text", SAFE_INSERT_IN_TOKENS)) {
- // Look ahead in case we're at the end of a token
- var iterator2 = new TokenIterator(session, cursor.row, cursor.column + 1);
- if (!this.$matchTokenType(iterator2.getCurrentToken() || "text", SAFE_INSERT_IN_TOKENS))
- return false;
- }
-
- // Only insert in front of whitespace/comments
- iterator.stepForward();
- return iterator.getCurrentTokenRow() !== cursor.row ||
- this.$matchTokenType(iterator.getCurrentToken() || "text", SAFE_INSERT_BEFORE_TOKENS);
- };
- CstyleBehaviour.$matchTokenType = function(token, types) {
- return types.indexOf(token.type || token) > -1;
- };
- CstyleBehaviour.recordAutoInsert = function(editor, session, bracket) {
- var cursor = editor.getCursorPosition();
- var line = session.doc.getLine(cursor.row);
- // Reset previous state if text or context changed too much
- if (!this.isAutoInsertedClosing(cursor, line, context.autoInsertedLineEnd[0]))
- context.autoInsertedBrackets = 0;
- context.autoInsertedRow = cursor.row;
- context.autoInsertedLineEnd = bracket + line.substr(cursor.column);
- context.autoInsertedBrackets++;
- };
- CstyleBehaviour.recordMaybeInsert = function(editor, session, bracket) {
- var cursor = editor.getCursorPosition();
- var line = session.doc.getLine(cursor.row);
- if (!this.isMaybeInsertedClosing(cursor, line))
- context.maybeInsertedBrackets = 0;
- context.maybeInsertedRow = cursor.row;
- context.maybeInsertedLineStart = line.substr(0, cursor.column) + bracket;
- context.maybeInsertedLineEnd = line.substr(cursor.column);
- context.maybeInsertedBrackets++;
- };
- CstyleBehaviour.isAutoInsertedClosing = function(cursor, line, bracket) {
- return context.autoInsertedBrackets > 0 &&
- cursor.row === context.autoInsertedRow &&
- bracket === context.autoInsertedLineEnd[0] &&
- line.substr(cursor.column) === context.autoInsertedLineEnd;
- };
- CstyleBehaviour.isMaybeInsertedClosing = function(cursor, line) {
- return context.maybeInsertedBrackets > 0 &&
- cursor.row === context.maybeInsertedRow &&
- line.substr(cursor.column) === context.maybeInsertedLineEnd &&
- line.substr(0, cursor.column) == context.maybeInsertedLineStart;
- };
- CstyleBehaviour.popAutoInsertedClosing = function() {
- context.autoInsertedLineEnd = context.autoInsertedLineEnd.substr(1);
- context.autoInsertedBrackets--;
- };
- CstyleBehaviour.clearMaybeInsertedClosing = function() {
- if (context) {
- context.maybeInsertedBrackets = 0;
- context.maybeInsertedRow = -1;
- }
- };
- oop.inherits(CstyleBehaviour, Behaviour);
- exports.CstyleBehaviour = CstyleBehaviour;
- });
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