mirror of
https://github.com/overleaf/overleaf.git
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664 lines
22 KiB
JavaScript
Executable file
664 lines
22 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 util = require("./util");
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var keepScrollPosition = function(editor, fn) {
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var scrollTopRow = editor.renderer.getScrollTopRow();
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var initialRow = editor.getCursorPosition().row;
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var diff = initialRow - scrollTopRow;
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fn && fn.call(editor);
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editor.renderer.scrollToRow(editor.getCursorPosition().row - diff);
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};
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function Motion(m) {
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if (typeof m == "function") {
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var getPos = m;
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m = this;
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} else {
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var getPos = m.getPos;
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}
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m.nav = function(editor, range, count, param) {
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var a = getPos(editor, range, count, param, false);
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if (!a)
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return;
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editor.clearSelection();
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editor.moveCursorTo(a.row, a.column);
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};
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m.sel = function(editor, range, count, param) {
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var a = getPos(editor, range, count, param, true);
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if (!a)
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return;
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editor.selection.selectTo(a.row, a.column);
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};
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return m;
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}
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var nonWordRe = /[\s.\/\\()\"'-:,.;<>~!@#$%^&*|+=\[\]{}`~?]/;
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var wordSeparatorRe = /[.\/\\()\"'-:,.;<>~!@#$%^&*|+=\[\]{}`~?]/;
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var whiteRe = /\s/;
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var StringStream = function(editor, cursor) {
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var sel = editor.selection;
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this.range = sel.getRange();
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cursor = cursor || sel.selectionLead;
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this.row = cursor.row;
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this.col = cursor.column;
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var line = editor.session.getLine(this.row);
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var maxRow = editor.session.getLength();
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this.ch = line[this.col] || '\n';
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this.skippedLines = 0;
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this.next = function() {
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this.ch = line[++this.col] || this.handleNewLine(1);
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//this.debug()
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return this.ch;
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};
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this.prev = function() {
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this.ch = line[--this.col] || this.handleNewLine(-1);
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//this.debug()
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return this.ch;
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};
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this.peek = function(dir) {
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var ch = line[this.col + dir];
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if (ch)
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return ch;
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if (dir == -1)
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return '\n';
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if (this.col == line.length - 1)
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return '\n';
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return editor.session.getLine(this.row + 1)[0] || '\n';
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};
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this.handleNewLine = function(dir) {
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if (dir == 1){
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if (this.col == line.length)
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return '\n';
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if (this.row == maxRow - 1)
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return '';
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this.col = 0;
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this.row ++;
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line = editor.session.getLine(this.row);
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this.skippedLines++;
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return line[0] || '\n';
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}
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if (dir == -1) {
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if (this.row === 0)
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return '';
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this.row --;
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line = editor.session.getLine(this.row);
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this.col = line.length;
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this.skippedLines--;
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return '\n';
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}
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};
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this.debug = function() {
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console.log(line.substring(0, this.col)+'|'+this.ch+'\''+this.col+'\''+line.substr(this.col+1));
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};
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};
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var Search = require("../../../search").Search;
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var search = new Search();
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function find(editor, needle, dir) {
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search.$options.needle = needle;
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search.$options.backwards = dir == -1;
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return search.find(editor.session);
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}
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var Range = require("../../../range").Range;
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var LAST_SEARCH_MOTION = {};
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module.exports = {
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"w": new Motion(function(editor) {
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var str = new StringStream(editor);
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if (str.ch && wordSeparatorRe.test(str.ch)) {
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while (str.ch && wordSeparatorRe.test(str.ch))
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str.next();
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} else {
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while (str.ch && !nonWordRe.test(str.ch))
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str.next();
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}
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while (str.ch && whiteRe.test(str.ch) && str.skippedLines < 2)
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str.next();
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str.skippedLines == 2 && str.prev();
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return {column: str.col, row: str.row};
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}),
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"W": new Motion(function(editor) {
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var str = new StringStream(editor);
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while(str.ch && !(whiteRe.test(str.ch) && !whiteRe.test(str.peek(1))) && str.skippedLines < 2)
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str.next();
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if (str.skippedLines == 2)
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str.prev();
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else
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str.next();
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return {column: str.col, row: str.row};
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}),
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"b": new Motion(function(editor) {
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var str = new StringStream(editor);
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str.prev();
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while (str.ch && whiteRe.test(str.ch) && str.skippedLines > -2)
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str.prev();
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if (str.ch && wordSeparatorRe.test(str.ch)) {
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while (str.ch && wordSeparatorRe.test(str.ch))
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str.prev();
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} else {
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while (str.ch && !nonWordRe.test(str.ch))
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str.prev();
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}
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str.ch && str.next();
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return {column: str.col, row: str.row};
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}),
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"B": new Motion(function(editor) {
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var str = new StringStream(editor);
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str.prev();
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while(str.ch && !(!whiteRe.test(str.ch) && whiteRe.test(str.peek(-1))) && str.skippedLines > -2)
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str.prev();
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if (str.skippedLines == -2)
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str.next();
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return {column: str.col, row: str.row};
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}),
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"e": new Motion(function(editor) {
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var str = new StringStream(editor);
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str.next();
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while (str.ch && whiteRe.test(str.ch))
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str.next();
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if (str.ch && wordSeparatorRe.test(str.ch)) {
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while (str.ch && wordSeparatorRe.test(str.ch))
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str.next();
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} else {
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while (str.ch && !nonWordRe.test(str.ch))
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str.next();
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}
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str.ch && str.prev();
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return {column: str.col, row: str.row};
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}),
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"E": new Motion(function(editor) {
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var str = new StringStream(editor);
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str.next();
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while(str.ch && !(!whiteRe.test(str.ch) && whiteRe.test(str.peek(1))))
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str.next();
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return {column: str.col, row: str.row};
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}),
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"l": {
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nav: function(editor) {
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var pos = editor.getCursorPosition();
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var col = pos.column;
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var lineLen = editor.session.getLine(pos.row).length;
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if (lineLen && col !== lineLen)
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editor.navigateRight();
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},
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sel: function(editor) {
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var pos = editor.getCursorPosition();
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var col = pos.column;
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var lineLen = editor.session.getLine(pos.row).length;
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// Solving the behavior at the end of the line due to the
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// different 0 index-based colum positions in ACE.
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if (lineLen && col !== lineLen) //In selection mode you can select the newline
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editor.selection.selectRight();
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}
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},
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"h": {
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nav: function(editor) {
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var pos = editor.getCursorPosition();
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if (pos.column > 0)
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editor.navigateLeft();
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},
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sel: function(editor) {
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var pos = editor.getCursorPosition();
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if (pos.column > 0)
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editor.selection.selectLeft();
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}
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},
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"H": {
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nav: function(editor) {
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var row = editor.renderer.getScrollTopRow();
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editor.moveCursorTo(row);
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},
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sel: function(editor) {
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var row = editor.renderer.getScrollTopRow();
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editor.selection.selectTo(row);
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}
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},
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"M": {
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nav: function(editor) {
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var topRow = editor.renderer.getScrollTopRow();
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var bottomRow = editor.renderer.getScrollBottomRow();
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var row = topRow + ((bottomRow - topRow) / 2);
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editor.moveCursorTo(row);
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},
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sel: function(editor) {
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var topRow = editor.renderer.getScrollTopRow();
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var bottomRow = editor.renderer.getScrollBottomRow();
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var row = topRow + ((bottomRow - topRow) / 2);
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editor.selection.selectTo(row);
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}
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},
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"L": {
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nav: function(editor) {
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var row = editor.renderer.getScrollBottomRow();
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editor.moveCursorTo(row);
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},
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sel: function(editor) {
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var row = editor.renderer.getScrollBottomRow();
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editor.selection.selectTo(row);
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}
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},
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"k": {
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nav: function(editor) {
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editor.navigateUp();
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},
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sel: function(editor) {
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editor.selection.selectUp();
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}
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},
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"j": {
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nav: function(editor) {
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editor.navigateDown();
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},
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sel: function(editor) {
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editor.selection.selectDown();
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}
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},
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"i": {
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param: true,
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sel: function(editor, range, count, param) {
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switch (param) {
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case "w":
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editor.selection.selectWord();
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break;
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case "W":
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editor.selection.selectAWord();
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break;
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case "(":
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case "{":
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case "[":
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var cursor = editor.getCursorPosition();
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var end = editor.session.$findClosingBracket(param, cursor, /paren/);
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if (!end)
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return;
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var start = editor.session.$findOpeningBracket(editor.session.$brackets[param], cursor, /paren/);
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if (!start)
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return;
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start.column ++;
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editor.selection.setSelectionRange(Range.fromPoints(start, end));
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break;
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case "'":
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case '"':
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case "/":
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var end = find(editor, param, 1);
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if (!end)
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return;
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var start = find(editor, param, -1);
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if (!start)
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return;
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editor.selection.setSelectionRange(Range.fromPoints(start.end, end.start));
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break;
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}
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}
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},
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"a": {
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param: true,
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sel: function(editor, range, count, param) {
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switch (param) {
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case "w":
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editor.selection.selectAWord();
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break;
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case "W":
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editor.selection.selectAWord();
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break;
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case "(":
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case "{":
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case "[":
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var cursor = editor.getCursorPosition();
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var end = editor.session.$findClosingBracket(param, cursor, /paren/);
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if (!end)
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return;
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var start = editor.session.$findOpeningBracket(editor.session.$brackets[param], cursor, /paren/);
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if (!start)
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return;
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end.column ++;
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editor.selection.setSelectionRange(Range.fromPoints(start, end));
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break;
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case "'":
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case "\"":
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case "/":
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var end = find(editor, param, 1);
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if (!end)
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return;
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var start = find(editor, param, -1);
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if (!start)
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return;
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end.column ++;
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editor.selection.setSelectionRange(Range.fromPoints(start.start, end.end));
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break;
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}
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}
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},
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"f": new Motion({
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param: true,
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handlesCount: true,
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getPos: function(editor, range, count, param, isSel, isRepeat) {
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if (!isRepeat)
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LAST_SEARCH_MOTION = {ch: "f", param: param};
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var cursor = editor.getCursorPosition();
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var column = util.getRightNthChar(editor, cursor, param, count || 1);
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if (typeof column === "number") {
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cursor.column += column + (isSel ? 2 : 1);
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return cursor;
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}
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}
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}),
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"F": new Motion({
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param: true,
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handlesCount: true,
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getPos: function(editor, range, count, param, isSel, isRepeat) {
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if (!isRepeat)
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LAST_SEARCH_MOTION = {ch: "F", param: param};
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var cursor = editor.getCursorPosition();
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var column = util.getLeftNthChar(editor, cursor, param, count || 1);
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if (typeof column === "number") {
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cursor.column -= column + 1;
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return cursor;
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}
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}
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}),
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"t": new Motion({
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param: true,
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handlesCount: true,
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getPos: function(editor, range, count, param, isSel, isRepeat) {
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if (!isRepeat)
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LAST_SEARCH_MOTION = {ch: "t", param: param};
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var cursor = editor.getCursorPosition();
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var column = util.getRightNthChar(editor, cursor, param, count || 1);
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if (isRepeat && column == 0 && !(count > 1))
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var column = util.getRightNthChar(editor, cursor, param, 2);
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if (typeof column === "number") {
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cursor.column += column + (isSel ? 1 : 0);
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return cursor;
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}
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}
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}),
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"T": new Motion({
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param: true,
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handlesCount: true,
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getPos: function(editor, range, count, param, isSel, isRepeat) {
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if (!isRepeat)
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LAST_SEARCH_MOTION = {ch: "T", param: param};
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var cursor = editor.getCursorPosition();
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var column = util.getLeftNthChar(editor, cursor, param, count || 1);
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if (isRepeat && column == 0 && !(count > 1))
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var column = util.getLeftNthChar(editor, cursor, param, 2);
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if (typeof column === "number") {
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cursor.column -= column;
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return cursor;
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}
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}
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}),
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";": new Motion({
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handlesCount: true,
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getPos: function(editor, range, count, param, isSel) {
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var ch = LAST_SEARCH_MOTION.ch;
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if (!ch)
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return;
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return module.exports[ch].getPos(
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editor, range, count, LAST_SEARCH_MOTION.param, isSel, true
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);
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}
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}),
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",": new Motion({
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handlesCount: true,
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getPos: function(editor, range, count, param, isSel) {
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var ch = LAST_SEARCH_MOTION.ch;
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if (!ch)
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return;
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var up = ch.toUpperCase();
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ch = ch === up ? ch.toLowerCase() : up;
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return module.exports[ch].getPos(
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editor, range, count, LAST_SEARCH_MOTION.param, isSel, true
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);
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}
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}),
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"^": {
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nav: function(editor) {
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editor.navigateLineStart();
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},
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sel: function(editor) {
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editor.selection.selectLineStart();
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}
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},
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"$": {
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nav: function(editor) {
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editor.navigateLineEnd();
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},
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sel: function(editor) {
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editor.selection.selectLineEnd();
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}
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},
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"0": new Motion(function(ed) {
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return {row: ed.selection.lead.row, column: 0};
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}),
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"G": {
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nav: function(editor, range, count, param) {
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if (!count && count !== 0) { // Stupid JS
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count = editor.session.getLength();
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}
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editor.gotoLine(count);
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},
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sel: function(editor, range, count, param) {
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if (!count && count !== 0) { // Stupid JS
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count = editor.session.getLength();
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}
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editor.selection.selectTo(count, 0);
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}
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},
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"g": {
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param: true,
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nav: function(editor, range, count, param) {
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switch(param) {
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case "m":
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console.log("Middle line");
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break;
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case "e":
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console.log("End of prev word");
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break;
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case "g":
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editor.gotoLine(count || 0);
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case "u":
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editor.gotoLine(count || 0);
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case "U":
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editor.gotoLine(count || 0);
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}
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},
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sel: function(editor, range, count, param) {
|
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switch(param) {
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case "m":
|
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console.log("Middle line");
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break;
|
|
case "e":
|
|
console.log("End of prev word");
|
|
break;
|
|
case "g":
|
|
editor.selection.selectTo(count || 0, 0);
|
|
}
|
|
}
|
|
},
|
|
"o": {
|
|
nav: function(editor, range, count, param) {
|
|
count = count || 1;
|
|
var content = "";
|
|
while (0 < count--)
|
|
content += "\n";
|
|
|
|
if (content.length) {
|
|
editor.navigateLineEnd()
|
|
editor.insert(content);
|
|
util.insertMode(editor);
|
|
}
|
|
}
|
|
},
|
|
"O": {
|
|
nav: function(editor, range, count, param) {
|
|
var row = editor.getCursorPosition().row;
|
|
count = count || 1;
|
|
var content = "";
|
|
while (0 < count--)
|
|
content += "\n";
|
|
|
|
if (content.length) {
|
|
if(row > 0) {
|
|
editor.navigateUp();
|
|
editor.navigateLineEnd()
|
|
editor.insert(content);
|
|
} else {
|
|
editor.session.insert({row: 0, column: 0}, content);
|
|
editor.navigateUp();
|
|
}
|
|
util.insertMode(editor);
|
|
}
|
|
}
|
|
},
|
|
"%": new Motion(function(editor){
|
|
var brRe = /[\[\]{}()]/g;
|
|
var cursor = editor.getCursorPosition();
|
|
var ch = editor.session.getLine(cursor.row)[cursor.column];
|
|
if (!brRe.test(ch)) {
|
|
var range = find(editor, brRe);
|
|
if (!range)
|
|
return;
|
|
cursor = range.start;
|
|
}
|
|
var match = editor.session.findMatchingBracket({
|
|
row: cursor.row,
|
|
column: cursor.column + 1
|
|
});
|
|
|
|
return match;
|
|
}),
|
|
"{": new Motion(function(ed) {
|
|
var session = ed.session;
|
|
var row = session.selection.lead.row;
|
|
while(row > 0 && !/\S/.test(session.getLine(row)))
|
|
row--;
|
|
while(/\S/.test(session.getLine(row)))
|
|
row--;
|
|
return {column: 0, row: row};
|
|
}),
|
|
"}": new Motion(function(ed) {
|
|
var session = ed.session;
|
|
var l = session.getLength();
|
|
var row = session.selection.lead.row;
|
|
while(row < l && !/\S/.test(session.getLine(row)))
|
|
row++;
|
|
while(/\S/.test(session.getLine(row)))
|
|
row++;
|
|
return {column: 0, row: row};
|
|
}),
|
|
"ctrl-d": {
|
|
nav: function(editor, range, count, param) {
|
|
editor.selection.clearSelection();
|
|
keepScrollPosition(editor, editor.gotoPageDown);
|
|
},
|
|
sel: function(editor, range, count, param) {
|
|
keepScrollPosition(editor, editor.selectPageDown);
|
|
}
|
|
},
|
|
"ctrl-u": {
|
|
nav: function(editor, range, count, param) {
|
|
editor.selection.clearSelection();
|
|
keepScrollPosition(editor, editor.gotoPageUp);
|
|
},
|
|
sel: function(editor, range, count, param) {
|
|
keepScrollPosition(editor, editor.selectPageUp);
|
|
}
|
|
},
|
|
"`": new Motion({
|
|
param: true,
|
|
handlesCount: true,
|
|
getPos: function(editor, range, count, param, isSel) {
|
|
var s = editor.session;
|
|
var marker = s.vimMarkers && s.vimMarkers[param];
|
|
if (marker) {
|
|
return marker.getPosition();
|
|
}
|
|
}
|
|
}),
|
|
"'": new Motion({
|
|
param: true,
|
|
handlesCount: true,
|
|
getPos: function(editor, range, count, param, isSel) {
|
|
var s = editor.session;
|
|
var marker = s.vimMarkers && s.vimMarkers[param];
|
|
if (marker) {
|
|
var pos = marker.getPosition();
|
|
var line = editor.session.getLine(pos.row);
|
|
pos.column = line.search(/\S/);
|
|
if (pos.column == -1)
|
|
pos.column = line.length;
|
|
return pos;
|
|
}
|
|
}
|
|
})
|
|
};
|
|
|
|
module.exports.backspace = module.exports.left = module.exports.h;
|
|
module.exports.space = module.exports['return'] = module.exports.right = module.exports.l;
|
|
module.exports.up = module.exports.k;
|
|
module.exports.down = module.exports.j;
|
|
module.exports.pagedown = module.exports["ctrl-d"];
|
|
module.exports.pageup = module.exports["ctrl-u"];
|
|
|
|
});
|