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