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✏️ Editing: ResizeBars.js

/**
 * ResizeBars.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2015 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This class handles table column and row resizing by adding divs over the columns and rows of the table.
 * These divs are then manipulated using mouse events to resize the underlying table.
 *
 * @class tinymce.tableplugin.ResizeBars
 * @private
 */
define("tinymce/tableplugin/ResizeBars", [
	"tinymce/util/Tools",
	"tinymce/util/VK"
], function(Tools, VK) {
	return function(editor) {
		var RESIZE_BAR_CLASS = 'mce-resize-bar',
			RESIZE_BAR_ROW_CLASS = 'mce-resize-bar-row',
			RESIZE_BAR_ROW_CURSOR_STYLE = 'row-resize',
			RESIZE_BAR_ROW_DATA_ATTRIBUTE = 'data-row',
			RESIZE_BAR_ROW_DATA_INITIAL_TOP_ATTRIBUTE = 'data-initial-top',
			RESIZE_BAR_COL_CLASS = 'mce-resize-bar-col',
			RESIZE_BAR_COL_CURSOR_STYLE = 'col-resize',
			RESIZE_BAR_COL_DATA_ATTRIBUTE = 'data-col',
			RESIZE_BAR_COL_DATA_INITIAL_LEFT_ATTRIBUTE = 'data-initial-left',
			RESIZE_BAR_THICKNESS = 4,
			RESIZE_MINIMUM_WIDTH = 10,
			RESIZE_MINIMUM_HEIGHT = 10,
			RESIZE_BAR_DRAGGING_CLASS = 'mce-resize-bar-dragging';

var percentageBasedSizeRegex = new RegExp(/(\d+(\.\d+)?%)/),
			pixelBasedSizeRegex = new RegExp(/px|em/);

var delayDrop, dragging, blockerElement, dragBar, lastX, lastY, hoverTable;

// Get the absolute position's top edge.
		function getTopEdge(index, row) {
			return {
				index: index,
				y: editor.dom.getPos(row).y
			};
		}

// Get the absolute position's bottom edge.
		function getBottomEdge(index, row) {
			return {
				index: index,
				y: editor.dom.getPos(row).y + row.offsetHeight
			};
		}

// Get the absolute position's left edge.
		function getLeftEdge(index, cell) {
			return {
				index: index,
				x: editor.dom.getPos(cell).x
			};
		}

// Get the absolute position's right edge.
		function getRightEdge(index, cell) {
			return {
				index: index,
				x: editor.dom.getPos(cell).x + cell.offsetWidth
			};
		}

function isRtl() {
			var dir = editor.getBody().dir;
			return dir === 'rtl';
		}

function isInline() {
			return editor.inline;
		}

function getBody() {
			return isInline ? editor.getBody().ownerDocument.body : editor.getBody();
		}

function getInnerEdge(index, cell) {
			return isRtl() ? getRightEdge(index, cell) : getLeftEdge(index, cell);
		}

function getOuterEdge(index, cell) {
			return isRtl() ? getLeftEdge(index, cell) : getRightEdge(index, cell);
		}

function getPercentageWidthFallback(element, table) {
			return getComputedStyleSize(element, 'width') / getComputedStyleSize(table, 'width') * 100;
		}

function getComputedStyleSize(element, property) {
			var widthString = editor.dom.getStyle(element, property, true);
			var width = parseInt(widthString, 10);
			return width;
		}

function getCurrentTablePercentWidth(table) {
			var tableWidth = getComputedStyleSize(table, 'width');
			var tableParentWidth = getComputedStyleSize(table.parentElement, 'width');
			return tableWidth / tableParentWidth * 100;
		}

function getCellPercentDelta(table, delta) {
			var tableWidth = getComputedStyleSize(table, 'width');
			return delta / tableWidth * 100;
		}

function getTablePercentDelta(table, delta) {
			var tableParentWidth = getComputedStyleSize(table.parentElement, 'width');
			return delta / tableParentWidth * 100;
		}

// Find the left/right (ltr/rtl) or top side locations of the cells to measure.
		// This is the location of the borders we need to draw over.
		function findPositions(getInner, getOuter, thingsToMeasure) {
			var tablePositions = [];

// Skip the first item in the array = no left (LTR), right (RTL) or top bars
			for (var i = 1; i < thingsToMeasure.length; i++) {
				// Get the element from the details
				var item = thingsToMeasure[i].element;
				// We need to zero index this again
				tablePositions.push(getInner(i - 1, item));
			}

var lastTableLineToMake = thingsToMeasure[thingsToMeasure.length - 1];
			tablePositions.push(getOuter(thingsToMeasure.length - 1, lastTableLineToMake.element));

return tablePositions;
		}

// Clear the bars.
		function clearBars() {
			var bars = editor.dom.select('.' + RESIZE_BAR_CLASS, getBody());
			Tools.each(bars, function(bar) {
				editor.dom.remove(bar);
			});
		}

// Refresh the bars.
		function refreshBars(tableElement) {
			clearBars();
			drawBars(tableElement);
		}

// Generates a resize bar object for the editor to add.
		function generateBar(classToAdd, cursor, left, top, height, width, indexAttr, index) {
			var bar = {
				'data-mce-bogus': 'all',
				'class': RESIZE_BAR_CLASS + ' ' + classToAdd,
				'unselectable': 'on',
				'data-mce-resize': false,
				style: 'cursor: ' + cursor + '; ' +
					'margin: 0; ' +
					'padding: 0; ' +
					'position: absolute; ' +
					'left: ' + left + 'px; ' +
					'top: ' + top + 'px; ' +
					'height: ' + height + 'px; ' +
					'width: ' + width + 'px; '
			};

bar[indexAttr] = index;

return bar;
		}

// Draw the row bars over the row borders.
		function drawRows(rowPositions, tableWidth, tablePosition) {
			Tools.each(rowPositions, function(rowPosition) {
				var left = tablePosition.x,
					top = rowPosition.y - RESIZE_BAR_THICKNESS / 2,
					height = RESIZE_BAR_THICKNESS,
					width = tableWidth;

editor.dom.add(getBody(), 'div',
					generateBar(RESIZE_BAR_ROW_CLASS, RESIZE_BAR_ROW_CURSOR_STYLE,
						left, top, height, width, RESIZE_BAR_ROW_DATA_ATTRIBUTE, rowPosition.index));
			});
		}

// Draw the column bars over the column borders.
		function drawCols(cellPositions, tableHeight, tablePosition) {
			Tools.each(cellPositions, function(cellPosition) {
				var left = cellPosition.x - RESIZE_BAR_THICKNESS / 2,
					top = tablePosition.y,
					height = tableHeight,
					width = RESIZE_BAR_THICKNESS;

editor.dom.add(getBody(), 'div',
					generateBar(RESIZE_BAR_COL_CLASS, RESIZE_BAR_COL_CURSOR_STYLE,
						left, top, height, width, RESIZE_BAR_COL_DATA_ATTRIBUTE, cellPosition.index));
			});
		}

// Get a matrix of the cells in each row and the rows in the table.
		function getTableDetails(table) {
			return Tools.map(table.rows, function(row) {

var cells = Tools.map(row.cells, function(cell) {

var rowspan = cell.hasAttribute('rowspan') ? parseInt(cell.getAttribute('rowspan'), 10) : 1;
					var colspan = cell.hasAttribute('colspan') ? parseInt(cell.getAttribute('colspan'), 10) : 1;

return {
						element: cell,
						rowspan: rowspan,
						colspan: colspan
					};
				});

return {
					element: row,
					cells: cells
				};

});

}

// Get a grid model of the table.
		function getTableGrid(tableDetails) {
			function key(rowIndex, colIndex) {
				return rowIndex + ',' + colIndex;
			}

function getAt(rowIndex, colIndex) {
				return access[key(rowIndex, colIndex)];
			}

function getAllCells() {
				var allCells = [];
				Tools.each(rows, function(row) {
					allCells = allCells.concat(row.cells);
				});
				return allCells;
			}

function getAllRows() {
				return rows;
			}

var access = {};
			var rows = [];

var maxRows = 0;
			var maxCols = 0;

Tools.each(tableDetails, function(row, rowIndex) {
				var currentRow = [];

Tools.each(row.cells, function(cell) {

var start = 0;

while (access[key(rowIndex, start)] !== undefined) {
						start++;
					}

var current = {
						element: cell.element,
						colspan: cell.colspan,
						rowspan: cell.rowspan,
						rowIndex: rowIndex,
						colIndex: start
					};

for (var i = 0; i < cell.colspan; i++) {
						for (var j = 0; j < cell.rowspan; j++) {
							var cr = rowIndex + j;
							var cc = start + i;
							access[key(cr, cc)] = current;
							maxRows = Math.max(maxRows, cr + 1);
							maxCols = Math.max(maxCols, cc + 1);
						}
					}

currentRow.push(current);
				});

rows.push({
					element: row.element,
					cells: currentRow
				});
			});

return {
				grid: {
					maxRows: maxRows,
					maxCols: maxCols
				},
				getAt: getAt,
				getAllCells: getAllCells,
				getAllRows: getAllRows
			};
		}

function range(start, end) {
			var r = [];

for (var i = start; i < end; i++) {
				r.push(i);
			}

return r;
		}

// Attempt to get a representative single block for this column.
		// If we can't find a single block, all blocks in this row/column are spanned
		// and we'll need to fallback to getting the first cell in the row/column.
		function decide(getBlock, isSingle, getFallback) {
			var inBlock = getBlock();
			var singleInBlock;

for (var i = 0; i < inBlock.length; i++) {
				if (isSingle(inBlock[i])) {
					singleInBlock = inBlock[i];
				}
			}
			return singleInBlock ? singleInBlock : getFallback();
		}

// Attempt to get representative blocks for the width of each column.
		function getColumnBlocks(tableGrid) {
			var cols = range(0, tableGrid.grid.maxCols);
			var rows = range(0, tableGrid.grid.maxRows);

return Tools.map(cols, function(col) {

function isSingle(detail) {
					return detail.colspan === 1;
				}

function getFallback() {
					return tableGrid.getAt(0, col);
				}

return decide(getBlock, isSingle, getFallback);

});
		}

// Attempt to get representative blocks for the height of each row.
		function getRowBlocks(tableGrid) {

var cols = range(0, tableGrid.grid.maxCols);
			var rows = range(0, tableGrid.grid.maxRows);

return Tools.map(rows, function(row) {

function isSingle(detail) {
					return detail.rowspan === 1;
				}

function getFallback() {
					tableGrid.getAt(row, 0);
				}

return decide(getBlock, isSingle, getFallback);
			});
		}

// Draw resize bars over the left/right (ltr/rtl) or top side locations of the cells to measure.
		// This is the location of the borders we need to draw over.
		function drawBars(table) {
			var tableDetails = getTableDetails(table);
			var tableGrid = getTableGrid(tableDetails);
			var rows = getRowBlocks(tableGrid);
			var cols = getColumnBlocks(tableGrid);

var tablePosition = editor.dom.getPos(table);
			var rowPositions = rows.length > 0 ? findPositions(getTopEdge, getBottomEdge, rows) : [];
			var colPositions = cols.length > 0 ? findPositions(getInnerEdge, getOuterEdge, cols) : [];

drawRows(rowPositions, table.offsetWidth, tablePosition);
			drawCols(colPositions, table.offsetHeight, tablePosition);
		}

// Attempt to deduce the width/height of a column/row that has more than one cell spanned.
		function deduceSize(deducables, index, isPercentageBased, table) {
			if (index < 0 || index >= deducables.length - 1) {
				return "";
			}

var current = deducables[index];

if (current) {
				current = {
					value: current,
					delta: 0
				};
			} else {
				var reversedUpToIndex = deducables.slice(0, index).reverse();
				for (var i = 0; i < reversedUpToIndex.length; i++) {
					if (reversedUpToIndex[i]) {
						current = {
							value: reversedUpToIndex[i],
							delta: i + 1
						};
					}
				}
			}

var next = deducables[index + 1];

if (next) {
				next = {
					value: next,
					delta: 1
				};
			} else {
				var rest = deducables.slice(index + 1);
				for (var j = 0; j < rest.length; j++) {
					if (rest[j]) {
						next = {
							value: rest[j],
							delta: j + 1
						};
					}
				}
			}

var extras = next.delta - current.delta;
			var pixelWidth = Math.abs(next.value - current.value) / extras;
			return isPercentageBased ? pixelWidth / getComputedStyleSize(table, 'width') * 100 : pixelWidth;
		}

function getWidth(element, isPercentageBased, table) {
			var widthString = getStyleOrAttrib(element, 'width');

var widthNumber = parseInt(widthString, 10);

var getWidthFallback = isPercentageBased ? getPercentageWidthFallback(element, table) : getComputedStyleSize(element, 'width');

// If this is percentage based table, but this cell isn't percentage based.
			// Or if this is a pixel based table, but this cell isn't pixel based.
			if (isPercentageBased && !isPercentageBasedSize(widthString) ||
			!isPercentageBased && !isPixelBasedSize(widthString)) {
				// set the widthnumber to 0
				widthNumber = 0;
			}

return !isNaN(widthNumber) && widthNumber > 0 ?
				widthNumber : getWidthFallback;
		}

// Attempt to get the css width from column representative cells.
		function getWidths(tableGrid, isPercentageBased, table) {

var cols = getColumnBlocks(tableGrid);

var backups = Tools.map(cols, function(col) {
				return getInnerEdge(col.colIndex, col.element).x;
			});

var widths = [];

for (var i = 0; i < cols.length; i++) {
				var span = cols[i].element.hasAttribute('colspan') ? parseInt(cols[i].element.getAttribute('colspan'), 10) : 1;
				// Deduce if the column has colspan of more than 1
				var width = span > 1 ? deduceSize(backups, i) : getWidth(cols[i].element, isPercentageBased, table);
				// If everything's failed and we still don't have a width
				width = width ? width : RESIZE_MINIMUM_WIDTH;
				widths.push(width);
			}

return widths;
		}

// Attempt to get the pixel height from a cell.
		function getPixelHeight(element) {

var heightString = getStyleOrAttrib(element, 'height');

var heightNumber = parseInt(heightString, 10);

if (isPercentageBasedSize(heightString)) {
				heightNumber = 0;
			}

return !isNaN(heightNumber) && heightNumber > 0 ?
							heightNumber : getComputedStyleSize(element, 'height');
		}

// Attempt to get the css height from row representative cells.
		function getPixelHeights(tableGrid) {

var rows = getRowBlocks(tableGrid);

var backups = Tools.map(rows, function(row) {
				return getTopEdge(row.rowIndex, row.element).y;
			});

var heights = [];

for (var i = 0; i < rows.length; i++) {
				var span = rows[i].element.hasAttribute('rowspan') ? parseInt(rows[i].element.getAttribute('rowspan'), 10) : 1;

var height = span > 1 ? deduceSize(backups, i) : getPixelHeight(rows[i].element);

height = height ? height : RESIZE_MINIMUM_HEIGHT;
				heights.push(height);
			}

return heights;
		}

// Determine how much each column's css width will need to change.
		// Sizes = result = pixels widths OR percentage based widths
		function determineDeltas(sizes, column, step, min, isPercentageBased) {

var result = sizes.slice(0);

function generateZeros(array) {
				return Tools.map(array, function() {
					return 0;
				});
			}

function onLeftOrMiddle(index, next) {

var startZeros = generateZeros(result.slice(0, index));
				var endZeros = generateZeros(result.slice(next + 1));
				var deltas;

if (step >= 0) {
					var newNext = Math.max(min, result[next] - step);
					deltas = startZeros.concat([step, newNext - result[next]]).concat(endZeros);
				} else {
					var newThis = Math.max(min, result[index] + step);
					var diffx = result[index] - newThis;
					deltas = startZeros.concat([newThis - result[index], diffx]).concat(endZeros);
				}

return deltas;
			}

function onRight(previous, index) {
				var startZeros = generateZeros(result.slice(0, index));
				var deltas;

if (step >= 0) {
					deltas = startZeros.concat([step]);
				} else {
					var size = Math.max(min, result[index] + step);
					deltas = startZeros.concat([size - result[index]]);
				}

return deltas;

}

var deltas;

if (sizes.length === 0) { // No Columns
				deltas = [];
			} else if (sizes.length === 1) { // One Column
				deltas = onOneColumn();
			} else if (column === 0) { // Left Column
				deltas = onLeftOrMiddle(0, 1);
			} else if (column > 0 && column < sizes.length - 1) { // Middle Column
				deltas = onLeftOrMiddle(column, column + 1);
			} else if (column === sizes.length - 1) { // Right Column
				deltas = onRight(column - 1, column);
			} else {
				deltas = [];
			}

return deltas;
		}

function total(start, end, measures) {
			var r = 0;
			for (var i = start; i < end; i++) {
				r += measures[i];
			}
			return r;
		}

// Combine cell's css widths to determine widths of colspan'd cells.
		function recalculateWidths(tableGrid, widths) {
			var allCells = tableGrid.getAllCells();
			return Tools.map(allCells, function(cell) {
				var width = total(cell.colIndex, cell.colIndex + cell.colspan, widths);
				return {
					element: cell.element,
					width: width,
					colspan: cell.colspan
				};
			});
		}

// Combine cell's css heights to determine heights of rowspan'd cells.
		function recalculateCellHeights(tableGrid, heights) {
			var allCells = tableGrid.getAllCells();
			return Tools.map(allCells, function(cell) {
				var height = total(cell.rowIndex, cell.rowIndex + cell.rowspan, heights);
				return {
					element: cell.element,
					height: height,
					rowspan: cell.rowspan
				};
			});
		}

// Calculate row heights.
		function recalculateRowHeights(tableGrid, heights) {
			var allRows = tableGrid.getAllRows();
			return Tools.map(allRows, function(row, i) {
				return {
					element: row.element,
					height: heights[i]
				};
			});
		}

function isPercentageBasedSize(size) {
			return percentageBasedSizeRegex.test(size);
		}

function isPixelBasedSize(size) {
			return pixelBasedSizeRegex.test(size);
		}

// Adjust the width of the column of table at index, with delta.
		function adjustWidth(table, delta, index) {
			var tableDetails = getTableDetails(table);
			var tableGrid = getTableGrid(tableDetails);

function setSizes(newSizes, styleExtension) {
				Tools.each(newSizes, function(cell) {
					editor.dom.setStyle(cell.element, 'width', cell.width + styleExtension);
					editor.dom.setAttrib(cell.element, 'width', null);
				});
			}

function getNewTablePercentWidth() {
				return index < tableGrid.grid.maxCols - 1 ? getCurrentTablePercentWidth(table) :
					getCurrentTablePercentWidth(table) + getTablePercentDelta(table, delta);
			}

function getNewTablePixelWidth() {
				return index < tableGrid.grid.maxCols - 1 ? getComputedStyleSize(table, 'width') :
					getComputedStyleSize(table, 'width') + delta;
			}

function setTableSize(newTableWidth, styleExtension, isPercentBased) {
				if (index == tableGrid.grid.maxCols - 1 || !isPercentBased) {
					editor.dom.setStyle(table, 'width', newTableWidth + styleExtension);
					editor.dom.setAttrib(table, 'width', null);
				}
			}

var percentageBased = isPercentageBasedSize(table.width) ||
				isPercentageBasedSize(table.style.width);

var widths = getWidths(tableGrid, percentageBased, table);

var step = percentageBased ? getCellPercentDelta(table, delta) : delta;
			// TODO: change the min for percentage maybe?
			var deltas = determineDeltas(widths, index, step, RESIZE_MINIMUM_WIDTH, percentageBased, table);
			var newWidths = [];

for (var i = 0; i < deltas.length; i++) {
				newWidths.push(deltas[i] + widths[i]);
			}

var newSizes = recalculateWidths(tableGrid, newWidths);
			var styleExtension = percentageBased ? '%' : 'px';
			var newTableWidth = percentageBased ? getNewTablePercentWidth() :
				getNewTablePixelWidth();

editor.undoManager.transact(function() {
				setSizes(newSizes, styleExtension);
				setTableSize(newTableWidth, styleExtension, percentageBased);
			});
		}

// Adjust the height of the row of table at index, with delta.
		function adjustHeight(table, delta, index) {
			var tableDetails = getTableDetails(table);
			var tableGrid = getTableGrid(tableDetails);

var heights = getPixelHeights(tableGrid);

var newHeights = [], newTotalHeight = 0;

for (var i = 0; i < heights.length; i++) {
				newHeights.push(i === index ? delta + heights[i] : heights[i]);
				newTotalHeight += newTotalHeight[i];
			}

var newCellSizes = recalculateCellHeights(tableGrid, newHeights);
			var newRowSizes = recalculateRowHeights(tableGrid, newHeights);

editor.undoManager.transact(function() {

Tools.each(newRowSizes, function(row) {
					editor.dom.setStyle(row.element, 'height', row.height + 'px');
					editor.dom.setAttrib(row.element, 'height', null);
				});

Tools.each(newCellSizes, function(cell) {
					editor.dom.setStyle(cell.element, 'height', cell.height + 'px');
					editor.dom.setAttrib(cell.element, 'height', null);
				});

editor.dom.setStyle(table, 'height', newTotalHeight + 'px');
				editor.dom.setAttrib(table, 'height', null);
			});
		}

function scheduleDelayedDropEvent() {
			delayDrop = setTimeout(function() {
				drop();
			}, 200);
		}

function cancelDelayedDropEvent() {
			clearTimeout(delayDrop);
		}

function getBlockerElement() {
			var blocker = document.createElement('div');

blocker.setAttribute('style', 'margin: 0; ' +
						'padding: 0; ' +
						'position: fixed; ' +
						'left: 0px; ' +
						'top: 0px; ' +
						'height: 100%; ' +
						'width: 100%;');
			blocker.setAttribute('data-mce-bogus', 'all');

return blocker;
		}

function bindBlockerEvents(blocker, dragHandler) {
			editor.dom.bind(blocker, 'mouseup', function() {
				drop();
			});

editor.dom.bind(blocker, 'mousemove', function(e) {
				cancelDelayedDropEvent();

if (dragging) {
					dragHandler(e);
				}
			});

editor.dom.bind(blocker, 'mouseout', function() {
				scheduleDelayedDropEvent();
			});

}

function drop() {
			editor.dom.remove(blockerElement);

if (dragging) {
				editor.dom.removeClass(dragBar, RESIZE_BAR_DRAGGING_CLASS);
				dragging = false;

var index, delta;

if (isCol(dragBar)) {
					var initialLeft = parseInt(editor.dom.getAttrib(dragBar, RESIZE_BAR_COL_DATA_INITIAL_LEFT_ATTRIBUTE), 10);
					var newLeft = editor.dom.getPos(dragBar).x;
					index = parseInt(editor.dom.getAttrib(dragBar, RESIZE_BAR_COL_DATA_ATTRIBUTE), 10);
					delta = isRtl() ? initialLeft - newLeft : newLeft - initialLeft;
					adjustWidth(hoverTable, delta, index);
				} else if (isRow(dragBar)) {
					var initialTop = parseInt(editor.dom.getAttrib(dragBar, RESIZE_BAR_ROW_DATA_INITIAL_TOP_ATTRIBUTE), 10);
					var newTop = editor.dom.getPos(dragBar).y;
					index = parseInt(editor.dom.getAttrib(dragBar, RESIZE_BAR_ROW_DATA_ATTRIBUTE), 10);
					delta = newTop - initialTop;
					adjustHeight(hoverTable, delta, index);
				}
				refreshBars(hoverTable);
				editor.nodeChanged();
			}
		}

function setupBaseDrag(bar, dragHandler) {
			blockerElement = blockerElement ? blockerElement : getBlockerElement();
			dragging = true;
			editor.dom.addClass(bar, RESIZE_BAR_DRAGGING_CLASS);
			dragBar = bar;
			bindBlockerEvents(blockerElement, dragHandler);
			editor.dom.add(getBody(), blockerElement);
		}

function isCol(target) {
			return editor.dom.hasClass(target, RESIZE_BAR_COL_CLASS);
		}

function isRow(target) {
			return editor.dom.hasClass(target, RESIZE_BAR_ROW_CLASS);
		}

function colDragHandler(event) {
			lastX = lastX !== undefined ? lastX : event.clientX; // we need a firstX
			var deltaX = event.clientX - lastX;
			lastX = event.clientX;
			var oldLeft = editor.dom.getPos(dragBar).x;
			editor.dom.setStyle(dragBar, 'left', oldLeft + deltaX + 'px');
		}

function rowDragHandler(event) {
			lastY = lastY !== undefined ? lastY : event.clientY;
			var deltaY = event.clientY - lastY;
			lastY = event.clientY;
			var oldTop = editor.dom.getPos(dragBar).y;
			editor.dom.setStyle(dragBar, 'top', oldTop + deltaY + 'px');
		}

function setupColDrag(bar) {
			lastX = undefined;
			setupBaseDrag(bar, colDragHandler);
		}

function setupRowDrag(bar) {
			lastY = undefined;
			setupBaseDrag(bar, rowDragHandler);
		}

editor.on('init', function() {
			// Needs to be like this for inline mode, editor.on does not bind to elements in the document body otherwise
			editor.dom.bind(getBody(), 'mousedown', function(e) {
				var target = e.target;

if (isCol(target)) {
					e.preventDefault();
					var initialLeft = editor.dom.getPos(target).x;
					editor.dom.setAttrib(target, RESIZE_BAR_COL_DATA_INITIAL_LEFT_ATTRIBUTE, initialLeft);
					setupColDrag(target);
				} else if (isRow(target)) {
					e.preventDefault();
					var initialTop = editor.dom.getPos(target).y;
					editor.dom.setAttrib(target, RESIZE_BAR_ROW_DATA_INITIAL_TOP_ATTRIBUTE, initialTop);
					setupRowDrag(target);
				}
			});
		});

// If we're updating the table width via the old mechanic, we need to update the constituent cells' widths/heights too.
		editor.on('ObjectResized', function(e) {
			var table = e.target;
			if (table.nodeName === 'TABLE') {
				var newCellSizes = [];
				Tools.each(table.rows, function(row) {
					Tools.each(row.cells, function(cell) {
						var width = editor.dom.getStyle(cell, 'width', true);
						newCellSizes.push({
							cell: cell,
							width: width
						});
					});
				});
				Tools.each(newCellSizes, function(newCellSize) {
					editor.dom.setStyle(newCellSize.cell, 'width', newCellSize.width);
					editor.dom.setAttrib(newCellSize.cell, 'width', null);
				});
			}
		});

editor.on('mouseover', function(e) {
			if (!dragging) {
				var tableElement = editor.dom.getParent(e.target, 'table');

if (e.target.nodeName === 'table' || tableElement) {
					hoverTable = tableElement;
					refreshBars(tableElement);
				}
			}
		});

// Prevents the user from moving the caret inside the resize bars on Chrome
		// Only does it on arrow keys since clearBars might be an epxensive operation
		// since it's querying the DOM
		editor.on('keydown', function(e) {
			switch (e.keyCode) {
				case VK.LEFT:
				case VK.RIGHT:
				case VK.UP:
				case VK.DOWN:
					clearBars();
					break;
			}
		});

return {
			adjustWidth: adjustWidth,
			adjustHeight: adjustHeight,
			clearBars: clearBars,
			drawBars: drawBars,
			determineDeltas: determineDeltas,
			getTableGrid: getTableGrid,
			getTableDetails: getTableDetails,
			getWidths: getWidths,
			getPixelHeights: getPixelHeights,
			isPercentageBasedSize: isPercentageBasedSize,
			isPixelBasedSize: isPixelBasedSize,
			recalculateWidths: recalculateWidths,
			recalculateCellHeights: recalculateCellHeights,
			recalculateRowHeights: recalculateRowHeights
		};
	};
});

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