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public/javascripts/ace/ext-elastic_tabstops_lite.js  view on Meta::CPAN

            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;