ace.define("ace/ext/elastic_tabstops_lite",["require","exports","module","ace/editor","ace/config"], function(require, exports, module) { "use strict"; var ElasticTabstopsLite = function(editor) { this.$editor = editor; var self = this; var changedRows = []; var recordChanges = false; this.onAfterExec = function() { recordChanges = false; self.processRows(changedRows); changedRows = []; }; this.onExec = function() { recordChanges = true; }; this.onChange = function(delta) { if (recordChanges) { if (changedRows.indexOf(delta.start.row) == -1) changedRows.push(delta.start.row); if (delta.end.row != delta.start.row) changedRows.push(delta.end.row); } }; }; (function() { this.processRows = function(rows) { this.$inChange = true; var checkedRows = []; for (var r = 0, rowCount = rows.length; r < rowCount; r++) { var row = rows[r]; if (checkedRows.indexOf(row) > -1) continue; var cellWidthObj = this.$findCellWidthsForBlock(row); var cellWidths = this.$setBlockCellWidthsToMax(cellWidthObj.cellWidths); var rowIndex = cellWidthObj.firstRow; for (var w = 0, l = cellWidths.length; w < l; w++) { var widths = cellWidths[w]; checkedRows.push(rowIndex); this.$adjustRow(rowIndex, widths); rowIndex++; } } this.$inChange = false; }; this.$findCellWidthsForBlock = function(row) { var cellWidths = [], widths; var rowIter = row; while (rowIter >= 0) { widths = this.$cellWidthsForRow(rowIter); if (widths.length == 0) break; cellWidths.unshift(widths); rowIter--; } var firstRow = rowIter + 1; rowIter = row; var numRows = this.$editor.session.getLength(); while (rowIter < numRows - 1) { rowIter++; widths = this.$cellWidthsForRow(rowIter); if (widths.length == 0) break; cellWidths.push(widths); } return { cellWidths: cellWidths, firstRow: firstRow }; }; this.$cellWidthsForRow = function(row) { var selectionColumns = this.$selectionColumnsForRow(row); var tabs = [-1].concat(this.$tabsForRow(row)); var widths = tabs.map(function(el) { return 0; } ).slice(1); var line = this.$editor.session.getLine(row); for (var i = 0, len = tabs.length - 1; i < len; i++) { var leftEdge = tabs[i]+1; var rightEdge = tabs[i+1]; var rightmostSelection = this.$rightmostSelectionInCell(selectionColumns, rightEdge); var cell = line.substring(leftEdge, rightEdge); widths[i] = Math.max(cell.replace(/\s+$/g,'').length, rightmostSelection - leftEdge); } return widths; }; this.$selectionColumnsForRow = function(row) { var selections = [], cursor = this.$editor.getCursorPosition(); if (this.$editor.session.getSelection().isEmpty()) { if (row == cursor.row) selections.push(cursor.column); } return selections; }; this.$setBlockCellWidthsToMax = function(cellWidths) { var startingNewBlock = true, blockStartRow, blockEndRow, maxWidth; var columnInfo = this.$izip_longest(cellWidths); for (var c = 0, l = columnInfo.length; c < l; c++) { var column = columnInfo[c]; if (!column.push) { console.error(column); continue; } column.push(NaN); for (var r = 0, s = column.length; r < s; r++) { var width = column[r]; if (startingNewBlock) { blockStartRow = r; maxWidth = 0; startingNewBlock = false; } if (isNaN(width)) { blockEndRow = r; for (var j = blockStartRow; j < blockEndRow; j++) { cellWidths[j][c] = maxWidth; } startingNewBlock = true; } maxWidth = Math.max(maxWidth, width); } } return cellWidths; }; this.$rightmostSelectionInCell = function(selectionColumns, cellRightEdge) { var rightmost = 0; if (selectionColumns.length) { var lengths = []; for (var s = 0, length = selectionColumns.length; s < length; s++) { if (selectionColumns[s] <= cellRightEdge) lengths.push(s); else lengths.push(0); } rightmost = Math.max.apply(Math, lengths); } return rightmost; }; this.$tabsForRow = function(row) { var rowTabs = [], line = this.$editor.session.getLine(row), re = /\t/g, match; while ((match = re.exec(line)) != null) { rowTabs.push(match.index); } return rowTabs; }; this.$adjustRow = function(row, widths) { var rowTabs = this.$tabsForRow(row); if (rowTabs.length == 0) return; var bias = 0, location = -1; var expandedSet = this.$izip(widths, rowTabs); for (var i = 0, l = expandedSet.length; i < l; i++) { var w = expandedSet[i][0], it = expandedSet[i][1]; location += 1 + w; it += bias; var difference = location - it; if (difference == 0) continue; var partialLine = this.$editor.session.getLine(row).substr(0, it ); var strippedPartialLine = partialLine.replace(/\s*$/g, ""); var ispaces = partialLine.length - strippedPartialLine.length; if (difference > 0) { this.$editor.session.getDocument().insertInLine({row: row, column: it + 1}, Array(difference + 1).join(" ") + "\t"); this.$editor.session.getDocument().removeInLine(row, it, it + 1); bias += difference; } if (difference < 0 && ispaces >= -difference) { this.$editor.session.getDocument().removeInLine(row, it + difference, it); bias += difference; } } }; this.$izip_longest = function(iterables) { if (!iterables[0]) return []; var longest = iterables[0].length; var iterablesLength = iterables.length; for (var i = 1; i < iterablesLength; i++) { var iLength = iterables[i].length; if (iLength > longest) longest = iLength; } var expandedSet = []; for (var l = 0; l < longest; l++) { var set = []; for (var i = 0; i < iterablesLength; i++) { if (iterables[i][l] === "") set.push(NaN); else set.push(iterables[i][l]); } expandedSet.push(set); } return expandedSet; }; this.$izip = function(widths, tabs) { var size = widths.length >= tabs.length ? tabs.length : widths.length; var expandedSet = []; for (var i = 0; i < size; i++) { var set = [ widths[i], tabs[i] ]; expandedSet.push(set); } return expandedSet; }; }).call(ElasticTabstopsLite.prototype); exports.ElasticTabstopsLite = ElasticTabstopsLite; var Editor = require("../editor").Editor; require("../config").defineOptions(Editor.prototype, "editor", { useElasticTabstops: { set: function(val) { if (val) { if (!this.elasticTabstops) this.elasticTabstops = new ElasticTabstopsLite(this); this.commands.on("afterExec", this.elasticTabstops.onAfterExec); this.commands.on("exec", this.elasticTabstops.onExec); this.on("change", this.elasticTabstops.onChange); } else if (this.elasticTabstops) { this.commands.removeListener("afterExec", this.elasticTabstops.onAfterExec); this.commands.removeListener("exec", this.elasticTabstops.onExec); this.removeListener("change", this.elasticTabstops.onChange); } } } }); }); (function() { ace.require(["ace/ext/elastic_tabstops_lite"], function(m) { if (typeof module == "object" && typeof exports == "object" && module) { module.exports = m; } }); })();