fold_mode.js 4.1 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120
  1. /* ***** BEGIN LICENSE BLOCK *****
  2. * Distributed under the BSD license:
  3. *
  4. * Copyright (c) 2010, Ajax.org B.V.
  5. * All rights reserved.
  6. *
  7. * Redistribution and use in source and binary forms, with or without
  8. * modification, are permitted provided that the following conditions are met:
  9. * * Redistributions of source code must retain the above copyright
  10. * notice, this list of conditions and the following disclaimer.
  11. * * Redistributions in binary form must reproduce the above copyright
  12. * notice, this list of conditions and the following disclaimer in the
  13. * documentation and/or other materials provided with the distribution.
  14. * * Neither the name of Ajax.org B.V. nor the
  15. * names of its contributors may be used to endorse or promote products
  16. * derived from this software without specific prior written permission.
  17. *
  18. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  19. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  20. * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  21. * DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
  22. * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  23. * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  24. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  25. * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27. * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28. *
  29. * ***** END LICENSE BLOCK ***** */
  30. define(function(require, exports, module) {
  31. "use strict";
  32. var Range = require("../../range").Range;
  33. var FoldMode = exports.FoldMode = function() {};
  34. (function() {
  35. this.foldingStartMarker = null;
  36. this.foldingStopMarker = null;
  37. // must return "" if there's no fold, to enable caching
  38. this.getFoldWidget = function(session, foldStyle, row) {
  39. var line = session.getLine(row);
  40. if (this.foldingStartMarker.test(line))
  41. return "start";
  42. if (foldStyle == "markbeginend"
  43. && this.foldingStopMarker
  44. && this.foldingStopMarker.test(line))
  45. return "end";
  46. return "";
  47. };
  48. this.getFoldWidgetRange = function(session, foldStyle, row) {
  49. return null;
  50. };
  51. this.indentationBlock = function(session, row, column) {
  52. var re = /\S/;
  53. var line = session.getLine(row);
  54. var startLevel = line.search(re);
  55. if (startLevel == -1)
  56. return;
  57. var startColumn = column || line.length;
  58. var maxRow = session.getLength();
  59. var startRow = row;
  60. var endRow = row;
  61. while (++row < maxRow) {
  62. var level = session.getLine(row).search(re);
  63. if (level == -1)
  64. continue;
  65. if (level <= startLevel)
  66. break;
  67. endRow = row;
  68. }
  69. if (endRow > startRow) {
  70. var endColumn = session.getLine(endRow).length;
  71. return new Range(startRow, startColumn, endRow, endColumn);
  72. }
  73. };
  74. this.openingBracketBlock = function(session, bracket, row, column, typeRe) {
  75. var start = {row: row, column: column + 1};
  76. var end = session.$findClosingBracket(bracket, start, typeRe);
  77. if (!end)
  78. return;
  79. var fw = session.foldWidgets[end.row];
  80. if (fw == null)
  81. fw = session.getFoldWidget(end.row);
  82. if (fw == "start" && end.row > start.row) {
  83. end.row --;
  84. end.column = session.getLine(end.row).length;
  85. }
  86. return Range.fromPoints(start, end);
  87. };
  88. this.closingBracketBlock = function(session, bracket, row, column, typeRe) {
  89. var end = {row: row, column: column};
  90. var start = session.$findOpeningBracket(bracket, end);
  91. if (!start)
  92. return;
  93. start.column++;
  94. end.column--;
  95. return Range.fromPoints(start, end);
  96. };
  97. }).call(FoldMode.prototype);
  98. });