smc

smc/panel/plugins/tablednd/js/jquery.tablednd.0.9.rc1.js

@@ -0,0 +1,664 @@
+/**
+ * TableDnD plug-in for JQuery, allows you to drag and drop table rows
+ * You can set up various options to control how the system will work
+ * Copyright (c) Denis Howlett <denish@isocra.com>
+ * Licensed like jQuery, see http://docs.jquery.com/License.
+ *
+ * Configuration options:
+ *
+ * onDragStyle
+ *     This is the style that is assigned to the row during drag. There are limitations to the styles that can be
+ *     associated with a row (such as you can't assign a border--well you can, but it won't be
+ *     displayed). (So instead consider using onDragClass.) The CSS style to apply is specified as
+ *     a map (as used in the jQuery css(...) function).
+ * onDropStyle
+ *     This is the style that is assigned to the row when it is dropped. As for onDragStyle, there are limitations
+ *     to what you can do. Also this replaces the original style, so again consider using onDragClass which
+ *     is simply added and then removed on drop.
+ * onDragClass
+ *     This class is added for the duration of the drag and then removed when the row is dropped. It is more
+ *     flexible than using onDragStyle since it can be inherited by the row cells and other content. The default
+ *     is class is tDnD_whileDrag. So to use the default, simply customise this CSS class in your
+ *     stylesheet.
+ * onDrop
+ *     Pass a function that will be called when the row is dropped. The function takes 2 parameters: the table
+ *     and the row that was dropped. You can work out the new order of the rows by using
+ *     table.rows.
+ * onDragStart
+ *     Pass a function that will be called when the user starts dragging. The function takes 2 parameters: the
+ *     table and the row which the user has started to drag.
+ * onAllowDrop
+ *     Pass a function that will be called as a row is over another row. If the function returns true, allow
+ *     dropping on that row, otherwise not. The function takes 2 parameters: the dragged row and the row under
+ *     the cursor. It returns a boolean: true allows the drop, false doesn't allow it.
+ * scrollAmount
+ *     This is the number of pixels to scroll if the user moves the mouse cursor to the top or bottom of the
+ *     window. The page should automatically scroll up or down as appropriate (tested in IE6, IE7, Safari, FF2,
+ *     FF3 beta
+ * dragHandle
+ *     This is a jQuery mach string for one or more cells in each row that is draggable. If you
+ *     specify this, then you are responsible for setting cursor: move in the CSS and only these cells
+ *     will have the drag behaviour. If you do not specify a dragHandle, then you get the old behaviour where
+ *     the whole row is draggable.
+ *
+ * Other ways to control behaviour:
+ *
+ * Add class="nodrop" to any rows for which you don't want to allow dropping, and class="nodrag" to any rows
+ * that you don't want to be draggable.
+ *
+ * Inside the onDrop method you can also call $.tableDnD.serialize() this returns a string of the form
+ * <tableID>[]=<rowID1>&<tableID>[]=<rowID2> so that you can send this back to the server. The table must have
+ * an ID as must all the rows.
+ *
+ * Other methods:
+ *
+ * $("...").tableDnDUpdate()
+ * Will update all the matching tables, that is it will reapply the mousedown method to the rows (or handle cells).
+ * This is useful if you have updated the table rows using Ajax and you want to make the table draggable again.
+ * The table maintains the original configuration (so you don't have to specify it again).
+ *
+ * $("...").tableDnDSerialize()
+ * Will serialize and return the serialized string as above, but for each of the matching tables--so it can be
+ * called from anywhere and isn't dependent on the currentTable being set up correctly before calling
+ *
+ * Known problems:
+ * - Auto-scoll has some problems with IE7  (it scrolls even when it shouldn't), work-around: set scrollAmount to 0
+ *
+ * Version 0.2: 2008-02-20 First public version
+ * Version 0.3: 2008-02-07 Added onDragStart option
+ *                         Made the scroll amount configurable (default is 5 as before)
+ * Version 0.4: 2008-03-15 Changed the noDrag/noDrop attributes to nodrag/nodrop classes
+ *                         Added onAllowDrop to control dropping
+ *                         Fixed a bug which meant that you couldn't set the scroll amount in both directions
+ *                         Added serialize method
+ * Version 0.5: 2008-05-16 Changed so that if you specify a dragHandle class it doesn't make the whole row
+ *                         draggable
+ *                         Improved the serialize method to use a default (and settable) regular expression.
+ *                         Added tableDnDupate() and tableDnDSerialize() to be called when you are outside the table
+ * Version 0.6: 2011-12-02 Added support for touch devices
+ * Version 0.7  2012-04-09 Now works with jQuery 1.7 and supports touch, tidied up tabs and spaces
+ */
+!function ($, window, document, undefined) {
+// Determine if this is a touch device
+var hasTouch   = 'ontouchstart' in document.documentElement,
+    startEvent = hasTouch ? 'touchstart' : 'mousedown',
+    moveEvent  = hasTouch ? 'touchmove'  : 'mousemove',
+    endEvent   = hasTouch ? 'touchend'   : 'mouseup';
+
+// If we're on a touch device, then wire up the events
+// see http://stackoverflow.com/a/8456194/1316086
+hasTouch
+    && $.each("touchstart touchmove touchend".split(" "), function(i, name) {
+        $.event.fixHooks[name] = $.event.mouseHooks;
+    });
+
+
+$(document).ready(function () {
+    function parseStyle(css) {
+        var objMap = {},
+            parts = css.match(/([^;:]+)/g) || [];
+        while (parts.length)
+            objMap[parts.shift()] = parts.shift().trim();
+
+        return objMap;
+    }
+    $('table').each(function () {
+        if ($(this).data('table') == 'dnd') {
+
+            $(this).tableDnD({
+                onDragStyle: $(this).data('ondragstyle') && parseStyle($(this).data('ondragstyle')) || null,
+                onDropStyle: $(this).data('ondropstyle') && parseStyle($(this).data('ondropstyle')) || null,
+                onDragClass: $(this).data('ondragclass') == undefined && "tDnD_whileDrag" || $(this).data('ondragclass'),
+                onDrop: $(this).data('ondrop') && new Function('table', 'row', $(this).data('ondrop')), // 'return eval("'+$(this).data('ondrop')+'");') || null,
+                onDragStart: $(this).data('ondragstart') && new Function('table', 'row' ,$(this).data('ondragstart')), // 'return eval("'+$(this).data('ondragstart')+'");') || null,
+                scrollAmount: $(this).data('scrollamount') || 5,
+                sensitivity: $(this).data('sensitivity') || 10,
+                hierarchyLevel: $(this).data('hierarchylevel') || 0,
+                indentArtifact: $(this).data('indentartifact') || '<div class="indent">&nbsp;</div>',
+                autoWidthAdjust: $(this).data('autowidthadjust') || true,
+                autoCleanRelations: $(this).data('autocleanrelations') || true,
+                jsonPretifySeparator: $(this).data('jsonpretifyseparator') || '\t',
+                serializeRegexp: $(this).data('serializeregexp') && new RegExp($(this).data('serializeregexp')) || /[^\-]*$/,
+                serializeParamName: $(this).data('serializeparamname') || false,
+                dragHandle: $(this).data('draghandle') || null
+            });
+        }
+
+
+    });
+});
+
+window.jQuery.tableDnD = {
+    /** Keep hold of the current table being dragged */
+    currentTable: null,
+    /** Keep hold of the current drag object if any */
+    dragObject: null,
+    /** The current mouse offset */
+    mouseOffset: null,
+    /** Remember the old value of X and Y so that we don't do too much processing */
+    oldX: 0,
+    oldY: 0,
+
+    /** Actually build the structure */
+    build: function(options) {
+        // Set up the defaults if any
+
+        this.each(function() {
+            // This is bound to each matching table, set up the defaults and override with user options
+            this.tableDnDConfig = $.extend({
+                onDragStyle: null,
+                onDropStyle: null,
+                // Add in the default class for whileDragging
+                onDragClass: "tDnD_whileDrag",
+                onDrop: null,
+                onDragStart: null,
+                scrollAmount: 5,
+                /** Sensitivity setting will throttle the trigger rate for movement detection */
+                sensitivity: 10,
+                /** Hierarchy level to support parent child. 0 switches this functionality off */
+                hierarchyLevel: 0,
+                /** The html artifact to prepend the first cell with as indentation */
+                indentArtifact: '<div class="indent">&nbsp;</div>',
+                /** Automatically adjust width of first cell */
+                autoWidthAdjust: true,
+                /** Automatic clean-up to ensure relationship integrity */
+                autoCleanRelations: true,
+                /** Specify a number (4) as number of spaces or any indent string for JSON.stringify */
+                jsonPretifySeparator: '\t',
+                /** The regular expression to use to trim row IDs */
+                serializeRegexp: /[^\-]*$/,
+                /** If you want to specify another parameter name instead of the table ID */
+                serializeParamName: false,
+                /** If you give the name of a class here, then only Cells with this class will be draggable */
+                dragHandle: null
+            }, options || {});
+
+            // Now make the rows draggable
+            $.tableDnD.makeDraggable(this);
+            // Prepare hierarchy support
+            this.tableDnDConfig.hierarchyLevel
+                && $.tableDnD.makeIndented(this);
+        });
+
+        // Don't break the chain
+        return this;
+    },
+    makeIndented: function (table) {
+        var config = table.tableDnDConfig,
+            rows = table.rows,
+            firstCell = $(rows).first().find('td:first')[0],
+            indentLevel = 0,
+            cellWidth = 0,
+            longestCell,
+            tableStyle;
+
+        if ($(table).hasClass('indtd'))
+            return null;
+
+        tableStyle = $(table).addClass('indtd').attr('style');
+        $(table).css({whiteSpace: "nowrap"});
+
+        for (var w = 0; w < rows.length; w++) {
+            if (cellWidth < $(rows[w]).find('td:first').text().length) {
+                cellWidth = $(rows[w]).find('td:first').text().length;
+                longestCell = w;
+            }
+        }
+        $(firstCell).css({width: 'auto'});
+        for (w = 0; w < config.hierarchyLevel; w++)
+            $(rows[longestCell]).find('td:first').prepend(config.indentArtifact);
+        firstCell && $(firstCell).css({width: firstCell.offsetWidth});
+        tableStyle && $(table).css(tableStyle);
+
+        for (w = 0; w < config.hierarchyLevel; w++)
+            $(rows[longestCell]).find('td:first').children(':first').remove();
+
+        config.hierarchyLevel
+            && $(rows).each(function () {
+                indentLevel = $(this).data('level') || 0;
+                indentLevel <= config.hierarchyLevel
+                    && $(this).data('level', indentLevel)
+                    || $(this).data('level', 0);
+                for (var i = 0; i < $(this).data('level'); i++)
+                    $(this).find('td:first').prepend(config.indentArtifact);
+            });
+
+        return this;
+    },
+    /** This function makes all the rows on the table draggable apart from those marked as "NoDrag" */
+    makeDraggable: function(table) {
+        var config = table.tableDnDConfig;
+
+        config.dragHandle
+            // We only need to add the event to the specified cells
+            && $(config.dragHandle, table).each(function() {
+                // The cell is bound to "this"
+                $(this).bind(startEvent, function(e) {
+                    $.tableDnD.initialiseDrag($(this).parents('tr')[0], table, this, e, config);
+                    return false;
+                });
+            })
+            // For backwards compatibility, we add the event to the whole row
+            // get all the rows as a wrapped set
+            || $(table.rows).each(function() {
+                // Iterate through each row, the row is bound to "this"
+                if (! $(this).hasClass("nodrag")) {
+                    $(this).bind(startEvent, function(e) {
+                        if (e.target.tagName == "TD") {
+                            $.tableDnD.initialiseDrag(this, table, this, e, config);
+                            return false;
+                        }
+                    }).css("cursor", "move"); // Store the tableDnD object
+                }
+            });
+    },
+    currentOrder: function() {
+        var rows = this.currentTable.rows;
+        return $.map(rows, function (val) {
+            return ($(val).data('level') + val.id).replace(/\s/g, '');
+        }).join('');
+    },
+    initialiseDrag: function(dragObject, table, target, e, config) {
+        this.dragObject    = dragObject;
+        this.currentTable  = table;
+        this.mouseOffset   = this.getMouseOffset(target, e);
+        this.originalOrder = this.currentOrder();
+
+        // Now we need to capture the mouse up and mouse move event
+        // We can use bind so that we don't interfere with other event handlers
+        $(document)
+            .bind(moveEvent, this.mousemove)
+            .bind(endEvent, this.mouseup);
+
+        // Call the onDragStart method if there is one
+        config.onDragStart
+            && config.onDragStart(table, target);
+    },
+    updateTables: function() {
+        this.each(function() {
+            // this is now bound to each matching table
+            if (this.tableDnDConfig)
+                $.tableDnD.makeDraggable(this);
+        });
+    },
+    /** Get the mouse coordinates from the event (allowing for browser differences) */
+    mouseCoords: function(e) {
+        if(e.pageX || e.pageY)
+            return {
+                x: e.pageX,
+                y: e.pageY
+            };
+
+        return {
+            x: e.clientX + document.body.scrollLeft - document.body.clientLeft,
+            y: e.clientY + document.body.scrollTop  - document.body.clientTop
+        };
+    },
+    /** Given a target element and a mouse eent, get the mouse offset from that element.
+     To do this we need the element's position and the mouse position */
+    getMouseOffset: function(target, e) {
+        var mousePos,
+            docPos;
+
+        e = e || window.event;
+
+        docPos    = this.getPosition(target);
+        mousePos  = this.mouseCoords(e);
+
+        return {
+            x: mousePos.x - docPos.x,
+            y: mousePos.y - docPos.y
+        };
+    },
+    /** Get the position of an element by going up the DOM tree and adding up all the offsets */
+    getPosition: function(element) {
+        var left = 0,
+            top  = 0;
+
+        // Safari fix -- thanks to Luis Chato for this!
+        // Safari 2 doesn't correctly grab the offsetTop of a table row
+        // this is detailed here:
+        // http://jacob.peargrove.com/blog/2006/technical/table-row-offsettop-bug-in-safari/
+        // the solution is likewise noted there, grab the offset of a table cell in the row - the firstChild.
+        // note that firefox will return a text node as a first child, so designing a more thorough
+        // solution may need to take that into account, for now this seems to work in firefox, safari, ie
+        if (element.offsetHeight == 0)
+            element = element.firstChild; // a table cell
+
+        while (element.offsetParent) {
+            left   += element.offsetLeft;
+            top    += element.offsetTop;
+            element = element.offsetParent;
+        }
+
+        left += element.offsetLeft;
+        top  += element.offsetTop;
+
+        return {
+            x: left,
+            y: top
+        };
+    },
+    autoScroll: function (mousePos) {
+      var config       = this.currentTable.tableDnDConfig,
+          yOffset      = window.pageYOffset,
+          windowHeight = window.innerHeight
+            ? window.innerHeight
+            : document.documentElement.clientHeight
+            ? document.documentElement.clientHeight
+            : document.body.clientHeight;
+
+        // Windows version
+        // yOffset=document.body.scrollTop;
+        if (document.all)
+            if (typeof document.compatMode != 'undefined'
+                && document.compatMode != 'BackCompat')
+                yOffset = document.documentElement.scrollTop;
+            else if (typeof document.body != 'undefined')
+                yOffset = document.body.scrollTop;
+
+        mousePos.y - yOffset < config.scrollAmount
+            && window.scrollBy(0, - config.scrollAmount)
+        || windowHeight - (mousePos.y - yOffset) < config.scrollAmount
+            && window.scrollBy(0, config.scrollAmount);
+
+    },
+    moveVerticle: function (moving, currentRow) {
+
+        if (0 != moving.vertical
+            // If we're over a row then move the dragged row to there so that the user sees the
+            // effect dynamically
+            && currentRow
+            && this.dragObject != currentRow
+            && this.dragObject.parentNode == currentRow.parentNode)
+            0 > moving.vertical
+                && this.dragObject.parentNode.insertBefore(this.dragObject, currentRow.nextSibling)
+            || 0 < moving.vertical
+                && this.dragObject.parentNode.insertBefore(this.dragObject, currentRow);
+
+    },
+    moveHorizontal: function (moving, currentRow) {
+        var config       = this.currentTable.tableDnDConfig,
+            currentLevel;
+
+        if (!config.hierarchyLevel
+            || 0 == moving.horizontal
+            // We only care if moving left or right on the current row
+            || !currentRow
+            || this.dragObject != currentRow)
+                return null;
+
+            currentLevel = $(currentRow).data('level');
+
+            0 < moving.horizontal
+                && currentLevel > 0
+                && $(currentRow).find('td:first').children(':first').remove()
+                && $(currentRow).data('level', --currentLevel);
+
+            0 > moving.horizontal
+                && currentLevel < config.hierarchyLevel
+                && $(currentRow).prev().data('level') >= currentLevel
+                && $(currentRow).children(':first').prepend(config.indentArtifact)
+                && $(currentRow).data('level', ++currentLevel);
+
+    },
+    mousemove: function(e) {
+        var dragObj      = $($.tableDnD.dragObject),
+            config       = $.tableDnD.currentTable.tableDnDConfig,
+            currentRow,
+            mousePos,
+            moving,
+            x,
+            y;
+
+        e && e.preventDefault();
+
+        if (!$.tableDnD.dragObject)
+            return false;
+
+        // prevent touch device screen scrolling
+        e.type == 'touchmove'
+            && event.preventDefault(); // TODO verify this is event and not really e
+
+        // update the style to show we're dragging
+        config.onDragClass
+            && dragObj.addClass(config.onDragClass)
+            || dragObj.css(config.onDragStyle);
+
+        mousePos = $.tableDnD.mouseCoords(e);
+        x = mousePos.x - $.tableDnD.mouseOffset.x;
+        y = mousePos.y - $.tableDnD.mouseOffset.y;
+
+        // auto scroll the window
+        $.tableDnD.autoScroll(mousePos);
+
+        currentRow = $.tableDnD.findDropTargetRow(dragObj, y);
+        moving = $.tableDnD.findDragDirection(x, y);
+
+        $.tableDnD.moveVerticle(moving, currentRow);
+        $.tableDnD.moveHorizontal(moving, currentRow);
+
+        return false;
+    },
+    findDragDirection: function (x,y) {
+        var sensitivity = this.currentTable.tableDnDConfig.sensitivity,
+            oldX        = this.oldX,
+            oldY        = this.oldY,
+            xMin        = oldX - sensitivity,
+            xMax        = oldX + sensitivity,
+            yMin        = oldY - sensitivity,
+            yMax        = oldY + sensitivity,
+            moving      = {
+                horizontal: x >= xMin && x <= xMax ? 0 : x > oldX ? -1 : 1,
+                vertical  : y >= yMin && y <= yMax ? 0 : y > oldY ? -1 : 1
+            };
+
+        // update the old value
+        if (moving.horizontal != 0)
+            this.oldX    = x;
+        if (moving.vertical   != 0)
+            this.oldY    = y;
+
+        return moving;
+    },
+    /** We're only worried about the y position really, because we can only move rows up and down */
+    findDropTargetRow: function(draggedRow, y) {
+        var rowHeight = 0,
+            rows      = this.currentTable.rows,
+            config    = this.currentTable.tableDnDConfig,
+            rowY      = 0,
+            row       = null;
+
+        for (var i = 0; i < rows.length; i++) {
+            row       = rows[i];
+            rowY      = this.getPosition(row).y;
+            rowHeight = parseInt(row.offsetHeight) / 2;
+            if (row.offsetHeight == 0) {
+                rowY      = this.getPosition(row.firstChild).y;
+                rowHeight = parseInt(row.firstChild.offsetHeight) / 2;
+            }
+            // Because we always have to insert before, we need to offset the height a bit
+            if (y > (rowY - rowHeight) && y < (rowY + rowHeight))
+                // that's the row we're over
+                // If it's the same as the current row, ignore it
+                if (row == draggedRow
+                    || (config.onAllowDrop
+                    && !config.onAllowDrop(draggedRow, row))
+                    // If a row has nodrop class, then don't allow dropping (inspired by John Tarr and Famic)
+                    || $(row).hasClass("nodrop"))
+                        return null;
+                else
+                    return row;
+        }
+        return null;
+    },
+    processMouseup: function() {
+        var config      = this.currentTable.tableDnDConfig,
+            droppedRow  = this.dragObject,
+            parentLevel = 0,
+            myLevel     = 0;
+
+        if (!this.currentTable || !droppedRow)
+            return null;
+
+        // Unbind the event handlers
+        $(document)
+            .unbind(moveEvent, this.mousemove)
+            .unbind(endEvent,  this.mouseup);
+
+        config.hierarchyLevel
+            && config.autoCleanRelations
+            && $(this.currentTable.rows).first().find('td:first').children().each(function () {
+                myLevel = $(this).parents('tr:first').data('level');
+                myLevel
+                    && $(this).parents('tr:first').data('level', --myLevel)
+                    && $(this).remove();
+            })
+            && config.hierarchyLevel > 1
+            && $(this.currentTable.rows).each(function () {
+                myLevel = $(this).data('level');
+                if (myLevel > 1) {
+                    parentLevel = $(this).prev().data('level');
+                    while (myLevel > parentLevel + 1) {
+                        $(this).find('td:first').children(':first').remove();
+                        $(this).data('level', --myLevel);
+                    }
+                }
+            });
+
+        // If we have a dragObject, then we need to release it,
+        // The row will already have been moved to the right place so we just reset stuff
+        config.onDragClass
+            && $(droppedRow).removeClass(config.onDragClass)
+            || $(droppedRow).css(config.onDropStyle);
+
+        this.dragObject = null;
+        // Call the onDrop method if there is one
+        config.onDrop
+            && this.originalOrder != this.currentOrder()
+            && $(droppedRow).hide().fadeIn('fast')
+            && config.onDrop(this.currentTable, droppedRow);
+
+        this.currentTable = null; // let go of the table too
+    },
+    mouseup: function(e) {
+        e && e.preventDefault();
+        $.tableDnD.processMouseup();
+        return false;
+    },
+    jsonize: function(pretify) {
+        var table = this.currentTable;
+        if (pretify)
+            return JSON.stringify(
+                this.tableData(table),
+                null,
+                table.tableDnDConfig.jsonPretifySeparator
+            );
+        return JSON.stringify(this.tableData(table));
+    },
+    serialize: function() {
+        return $.param(this.tableData(this.currentTable));
+    },
+    serializeTable: function(table) {
+        var result = "";
+        var paramName = table.tableDnDConfig.serializeParamName || table.id;
+        var rows = table.rows;
+        for (var i=0; i<rows.length; i++) {
+            if (result.length > 0) result += "&";
+            var rowId = rows[i].id;
+            if (rowId && table.tableDnDConfig && table.tableDnDConfig.serializeRegexp) {
+                rowId = rowId.match(table.tableDnDConfig.serializeRegexp)[0];
+                result += paramName + '[]=' + rowId;
+            }
+        }
+        return result;
+    },
+    serializeTables: function() {
+        var result = [];
+        $('table').each(function() {
+            this.id && result.push($.param(this.tableData(this)));
+        });
+        return result.join('&');
+    },
+    tableData: function (table) {
+        var config = table.tableDnDConfig,
+            previousIDs  = [],
+            currentLevel = 0,
+            indentLevel  = 0,
+            rowID        = null,
+            data         = {},
+            getSerializeRegexp,
+            paramName,
+            currentID,
+            rows;
+
+        if (!table)
+            table = this.currentTable;
+        if (!table || !table.id || !table.rows || !table.rows.length)
+            return {error: { code: 500, message: "Not a valid table, no serializable unique id provided."}};
+
+        rows      = config.autoCleanRelations
+                        && table.rows
+                        || $.makeArray(table.rows);
+        paramName = config.serializeParamName || table.id;
+        currentID = paramName;
+
+        getSerializeRegexp = function (rowId) {
+            if (rowId && config && config.serializeRegexp)
+                return rowId.match(config.serializeRegexp)[0];
+            return rowId;
+        };
+
+        data[currentID] = [];
+        !config.autoCleanRelations
+            && $(rows[0]).data('level')
+            && rows.unshift({id: 'undefined'});
+
+
+
+        for (var i=0; i < rows.length; i++) {
+            if (config.hierarchyLevel) {
+                indentLevel = $(rows[i]).data('level') || 0;
+                if (indentLevel == 0) {
+                    currentID   = paramName;
+                    previousIDs = [];
+                }
+                else if (indentLevel > currentLevel) {
+                    previousIDs.push([currentID, currentLevel]);
+                    currentID = getSerializeRegexp(rows[i-1].id);
+                }
+                else if (indentLevel < currentLevel) {
+                    for (var h = 0; h < previousIDs.length; h++) {
+                        if (previousIDs[h][1] == indentLevel)
+                            currentID         = previousIDs[h][0];
+                        if (previousIDs[h][1] >= currentLevel)
+                            previousIDs[h][1] = 0;
+                    }
+                }
+                currentLevel = indentLevel;
+
+                if (!$.isArray(data[currentID]))
+                    data[currentID] = [];
+                rowID = getSerializeRegexp(rows[i].id);
+                rowID && data[currentID].push(rowID);
+            }
+            else {
+                rowID = getSerializeRegexp(rows[i].id);
+                rowID && data[currentID].push(rowID);
+            }
+        }
+        return data;
+    }
+};
+
+window.jQuery.fn.extend(
+    {
+        tableDnD             : $.tableDnD.build,
+        tableDnDUpdate       : $.tableDnD.updateTables,
+        tableDnDSerialize    : $.proxy($.tableDnD.serialize, $.tableDnD),
+        tableDnDSerializeAll : $.tableDnD.serializeTables,
+        tableDnDData         : $.proxy($.tableDnD.tableData, $.tableDnD)
+    }
+);
+
+}(window.jQuery, window, window.document);

smc/panel/plugins/tablednd/js/jquery.tablednd.js

@@ -0,0 +1,591 @@
+/**
+ * TableDnD plug-in for JQuery, allows you to drag and drop table rows
+ * You can set up various options to control how the system will work
+ * Copyright (c) Denis Howlett <denish@isocra.com>
+ * License: MIT.
+ * See https://github.com/isocra/TableDnD
+ */
+
+/*jshint -W054 */
+
+!function ($, window, document, undefined) {
+
+var startEvent = 'touchstart mousedown',
+    moveEvent  = 'touchmove mousemove',
+    endEvent   = 'touchend mouseup';
+
+$(document).ready(function () {
+    function parseStyle(css) {
+        var objMap = {},
+            parts = css.match(/([^;:]+)/g) || [];
+        while (parts.length)
+            objMap[parts.shift()] = parts.shift().trim();
+
+        return objMap;
+    }
+    $('table').each(function () {
+        if ($(this).data('table') === 'dnd') {
+
+            $(this).tableDnD({
+                onDragStyle: $(this).data('ondragstyle') && parseStyle($(this).data('ondragstyle')) || null,
+                onDropStyle: $(this).data('ondropstyle') && parseStyle($(this).data('ondropstyle')) || null,
+                onDragClass: $(this).data('ondragclass') === undefined && "tDnD_whileDrag" || $(this).data('ondragclass'),
+                onDrop: $(this).data('ondrop') && new Function('table', 'row', $(this).data('ondrop')), // 'return eval("'+$(this).data('ondrop')+'");') || null,
+                onDragStart: $(this).data('ondragstart') && new Function('table', 'row' ,$(this).data('ondragstart')), // 'return eval("'+$(this).data('ondragstart')+'");') || null,
+                onDragStop: $(this).data('ondragstop') && new Function('table', 'row' ,$(this).data('ondragstop')),
+                scrollAmount: $(this).data('scrollamount') || 5,
+                sensitivity: $(this).data('sensitivity') || 10,
+                hierarchyLevel: $(this).data('hierarchylevel') || 0,
+                indentArtifact: $(this).data('indentartifact') || '<div class="indent">&nbsp;</div>',
+                autoWidthAdjust: $(this).data('autowidthadjust') || true,
+                autoCleanRelations: $(this).data('autocleanrelations') || true,
+                jsonPretifySeparator: $(this).data('jsonpretifyseparator') || '\t',
+                serializeRegexp: $(this).data('serializeregexp') && new RegExp($(this).data('serializeregexp')) || /[^\-]*$/,
+                serializeParamName: $(this).data('serializeparamname') || false,
+                dragHandle: $(this).data('draghandle') || null
+            });
+        }
+
+
+    });
+});
+
+jQuery.tableDnD = {
+    /** Keep hold of the current table being dragged */
+    currentTable: null,
+    /** Keep hold of the current drag object if any */
+    dragObject: null,
+    /** The current mouse offset */
+    mouseOffset: null,
+    /** Remember the old value of X and Y so that we don't do too much processing */
+    oldX: 0,
+    oldY: 0,
+
+    /** Actually build the structure */
+    build: function(options) {
+        // Set up the defaults if any
+
+        this.each(function() {
+            // This is bound to each matching table, set up the defaults and override with user options
+            this.tableDnDConfig = $.extend({
+                onDragStyle: null,
+                onDropStyle: null,
+                // Add in the default class for whileDragging
+                onDragClass: "tDnD_whileDrag",
+                onDrop: null,
+                onDragStart: null,
+                onDragStop: null,
+                scrollAmount: 5,
+                /** Sensitivity setting will throttle the trigger rate for movement detection */
+                sensitivity: 10,
+                /** Hierarchy level to support parent child. 0 switches this functionality off */
+                hierarchyLevel: 0,
+                /** The html artifact to prepend the first cell with as indentation */
+                indentArtifact: '<div class="indent">&nbsp;</div>',
+                /** Automatically adjust width of first cell */
+                autoWidthAdjust: true,
+                /** Automatic clean-up to ensure relationship integrity */
+                autoCleanRelations: true,
+                /** Specify a number (4) as number of spaces or any indent string for JSON.stringify */
+                jsonPretifySeparator: '\t',
+                /** The regular expression to use to trim row IDs */
+                serializeRegexp: /[^\-]*$/,
+                /** If you want to specify another parameter name instead of the table ID */
+                serializeParamName: false,
+                /** If you give the name of a class here, then only Cells with this class will be draggable */
+                dragHandle: null
+            }, options || {});
+
+            // Now make the rows draggable
+            $.tableDnD.makeDraggable(this);
+            // Prepare hierarchy support
+            this.tableDnDConfig.hierarchyLevel
+                && $.tableDnD.makeIndented(this);
+        });
+
+        // Don't break the chain
+        return this;
+    },
+    makeIndented: function (table) {
+        var config = table.tableDnDConfig,
+            rows = table.rows,
+            firstCell = $(rows).first().find('td:first')[0],
+            indentLevel = 0,
+            cellWidth = 0,
+            longestCell,
+            tableStyle;
+
+        if ($(table).hasClass('indtd'))
+            return null;
+
+        tableStyle = $(table).addClass('indtd').attr('style');
+        $(table).css({whiteSpace: "nowrap"});
+
+        for (var w = 0; w < rows.length; w++) {
+            if (cellWidth < $(rows[w]).find('td:first').text().length) {
+                cellWidth = $(rows[w]).find('td:first').text().length;
+                longestCell = w;
+            }
+        }
+        $(firstCell).css({width: 'auto'});
+        for (w = 0; w < config.hierarchyLevel; w++)
+            $(rows[longestCell]).find('td:first').prepend(config.indentArtifact);
+        firstCell && $(firstCell).css({width: firstCell.offsetWidth});
+        tableStyle && $(table).css(tableStyle);
+
+        for (w = 0; w < config.hierarchyLevel; w++)
+            $(rows[longestCell]).find('td:first').children(':first').remove();
+
+        config.hierarchyLevel
+            && $(rows).each(function () {
+                indentLevel = $(this).data('level') || 0;
+                indentLevel <= config.hierarchyLevel
+                    && $(this).data('level', indentLevel)
+                    || $(this).data('level', 0);
+                for (var i = 0; i < $(this).data('level'); i++)
+                    $(this).find('td:first').prepend(config.indentArtifact);
+            });
+
+        return this;
+    },
+    /** This function makes all the rows on the table draggable apart from those marked as "NoDrag" */
+    makeDraggable: function(table) {
+        var config = table.tableDnDConfig;
+
+        config.dragHandle
+            // We only need to add the event to the specified cells
+            && $(config.dragHandle, table).each(function() {
+                // The cell is bound to "this"
+                $(this).bind(startEvent, function(e) {
+                    $.tableDnD.initialiseDrag($(this).parents('tr')[0], table, this, e, config);
+                    return false;
+                });
+            })
+            // For backwards compatibility, we add the event to the whole row
+            // get all the rows as a wrapped set
+            || $(table.rows).each(function() {
+                // Iterate through each row, the row is bound to "this"
+                if (! $(this).hasClass("nodrag")) {
+                    $(this).bind(startEvent, function(e) {
+                        if (e.target.tagName === "TD") {
+                            $.tableDnD.initialiseDrag(this, table, this, e, config);
+                            return false;
+                        }
+                    }).css("cursor", "move"); // Store the tableDnD object
+                } else {
+                    $(this).css("cursor", ""); // Remove the cursor if we don't have the nodrag class
+                }
+            });
+    },
+    currentOrder: function() {
+        var rows = this.currentTable.rows;
+        return $.map(rows, function (val) {
+            return ($(val).data('level') + val.id).replace(/\s/g, '');
+        }).join('');
+    },
+    initialiseDrag: function(dragObject, table, target, e, config) {
+        this.dragObject    = dragObject;
+        this.currentTable  = table;
+        this.mouseOffset   = this.getMouseOffset(target, e);
+        this.originalOrder = this.currentOrder();
+
+        // Now we need to capture the mouse up and mouse move event
+        // We can use bind so that we don't interfere with other event handlers
+        $(document)
+            .bind(moveEvent, this.mousemove)
+            .bind(endEvent, this.mouseup);
+
+        // Call the onDragStart method if there is one
+        config.onDragStart
+            && config.onDragStart(table, target);
+    },
+    updateTables: function() {
+        this.each(function() {
+            // this is now bound to each matching table
+            if (this.tableDnDConfig)
+                $.tableDnD.makeDraggable(this);
+        });
+    },
+    /** Get the mouse coordinates from the event (allowing for browser differences) */
+    mouseCoords: function(e) {
+        if (e.originalEvent.changedTouches)
+            return {
+                x: e.originalEvent.changedTouches[0].clientX,
+                y: e.originalEvent.changedTouches[0].clientY
+            };
+
+        if(e.pageX || e.pageY)
+            return {
+                x: e.pageX,
+                y: e.pageY
+            };
+
+        return {
+            x: e.clientX + document.body.scrollLeft - document.body.clientLeft,
+            y: e.clientY + document.body.scrollTop  - document.body.clientTop
+        };
+    },
+    /** Given a target element and a mouse eent, get the mouse offset from that element.
+     To do this we need the element's position and the mouse position */
+    getMouseOffset: function(target, e) {
+        var mousePos,
+            docPos;
+
+        e = e || window.event;
+
+        docPos    = this.getPosition(target);
+        mousePos  = this.mouseCoords(e);
+
+        return {
+            x: mousePos.x - docPos.x,
+            y: mousePos.y - docPos.y
+        };
+    },
+    /** Get the position of an element by going up the DOM tree and adding up all the offsets */
+    getPosition: function(element) {
+        var left = 0,
+            top  = 0;
+
+        while (element.offsetParent) {
+            left   += element.offsetLeft;
+            top    += element.offsetTop;
+            element = element.offsetParent;
+        }
+
+        left += element.offsetLeft;
+        top  += element.offsetTop;
+
+        return {
+            x: left,
+            y: top
+        };
+    },
+    autoScroll: function (mousePos) {
+      var config       = this.currentTable.tableDnDConfig,
+          yOffset      = window.pageYOffset,
+          windowHeight = window.innerHeight
+            ? window.innerHeight
+            : document.documentElement.clientHeight
+            ? document.documentElement.clientHeight
+            : document.body.clientHeight;
+
+        // Windows version
+        // yOffset=document.body.scrollTop;
+        if (document.all)
+            if (typeof document.compatMode !== 'undefined'
+                && document.compatMode !== 'BackCompat')
+                yOffset = document.documentElement.scrollTop;
+            else if (typeof document.body !== 'undefined')
+                yOffset = document.body.scrollTop;
+
+        mousePos.y - yOffset < config.scrollAmount
+            && window.scrollBy(0, - config.scrollAmount)
+        || windowHeight - (mousePos.y - yOffset) < config.scrollAmount
+            && window.scrollBy(0, config.scrollAmount);
+
+    },
+    moveVerticle: function (moving, currentRow) {
+
+        if (0 !== moving.vertical
+            // If we're over a row then move the dragged row to there so that the user sees the
+            // effect dynamically
+            && currentRow
+            && this.dragObject !== currentRow
+            && this.dragObject.parentNode === currentRow.parentNode)
+            0 > moving.vertical
+                && this.dragObject.parentNode.insertBefore(this.dragObject, currentRow.nextSibling)
+            || 0 < moving.vertical
+                && this.dragObject.parentNode.insertBefore(this.dragObject, currentRow);
+
+    },
+    moveHorizontal: function (moving, currentRow) {
+        var config       = this.currentTable.tableDnDConfig,
+            currentLevel;
+
+        if (!config.hierarchyLevel
+            || 0 === moving.horizontal
+            // We only care if moving left or right on the current row
+            || !currentRow
+            || this.dragObject !== currentRow)
+                return null;
+
+            currentLevel = $(currentRow).data('level');
+
+            0 < moving.horizontal
+                && currentLevel > 0
+                && $(currentRow).find('td:first').children(':first').remove()
+                && $(currentRow).data('level', --currentLevel);
+
+            0 > moving.horizontal
+                && currentLevel < config.hierarchyLevel
+                && $(currentRow).prev().data('level') >= currentLevel
+                && $(currentRow).children(':first').prepend(config.indentArtifact)
+                && $(currentRow).data('level', ++currentLevel);
+
+    },
+    mousemove: function(e) {
+        var dragObj      = $($.tableDnD.dragObject),
+            config       = $.tableDnD.currentTable.tableDnDConfig,
+            currentRow,
+            mousePos,
+            moving,
+            x,
+            y;
+
+        e && e.preventDefault();
+
+        if (!$.tableDnD.dragObject)
+            return false;
+
+        // prevent touch device screen scrolling
+        e.type === 'touchmove'
+            && event.preventDefault(); // TODO verify this is event and not really e
+
+        // update the style to show we're dragging
+        config.onDragClass
+            && dragObj.addClass(config.onDragClass)
+            || dragObj.css(config.onDragStyle);
+
+        mousePos = $.tableDnD.mouseCoords(e);
+        x = mousePos.x - $.tableDnD.mouseOffset.x;
+        y = mousePos.y - $.tableDnD.mouseOffset.y;
+
+        // auto scroll the window
+        $.tableDnD.autoScroll(mousePos);
+
+        currentRow = $.tableDnD.findDropTargetRow(dragObj, y);
+        moving = $.tableDnD.findDragDirection(x, y);
+
+        $.tableDnD.moveVerticle(moving, currentRow);
+        $.tableDnD.moveHorizontal(moving, currentRow);
+
+        return false;
+    },
+    findDragDirection: function (x,y) {
+        var sensitivity = this.currentTable.tableDnDConfig.sensitivity,
+            oldX        = this.oldX,
+            oldY        = this.oldY,
+            xMin        = oldX - sensitivity,
+            xMax        = oldX + sensitivity,
+            yMin        = oldY - sensitivity,
+            yMax        = oldY + sensitivity,
+            moving      = {
+                horizontal: x >= xMin && x <= xMax ? 0 : x > oldX ? -1 : 1,
+                vertical  : y >= yMin && y <= yMax ? 0 : y > oldY ? -1 : 1
+            };
+
+        // update the old value
+        if (moving.horizontal !== 0)
+            this.oldX    = x;
+        if (moving.vertical   !== 0)
+            this.oldY    = y;
+
+        return moving;
+    },
+    /** We're only worried about the y position really, because we can only move rows up and down */
+    findDropTargetRow: function(draggedRow, y) {
+        var rowHeight = 0,
+            rows      = this.currentTable.rows,
+            config    = this.currentTable.tableDnDConfig,
+            rowY      = 0,
+            row       = null;
+
+        for (var i = 0; i < rows.length; i++) {
+            row       = rows[i];
+            rowY      = this.getPosition(row).y;
+            rowHeight = parseInt(row.offsetHeight) / 2;
+            if (row.offsetHeight === 0) {
+                rowY      = this.getPosition(row.firstChild).y;
+                rowHeight = parseInt(row.firstChild.offsetHeight) / 2;
+            }
+            // Because we always have to insert before, we need to offset the height a bit
+            if (y > (rowY - rowHeight) && y < (rowY + rowHeight))
+                // that's the row we're over
+                // If it's the same as the current row, ignore it
+                if (draggedRow.is(row)
+                    || (config.onAllowDrop
+                    && !config.onAllowDrop(draggedRow, row))
+                    // If a row has nodrop class, then don't allow dropping (inspired by John Tarr and Famic)
+                    || $(row).hasClass("nodrop"))
+                        return null;
+                else
+                    return row;
+        }
+        return null;
+    },
+    processMouseup: function() {
+        if (!this.currentTable || !this.dragObject)
+            return null;
+
+        var config      = this.currentTable.tableDnDConfig,
+            droppedRow  = this.dragObject,
+            parentLevel = 0,
+            myLevel     = 0;
+
+        // Unbind the event handlers
+        $(document)
+            .unbind(moveEvent, this.mousemove)
+            .unbind(endEvent,  this.mouseup);
+
+        config.hierarchyLevel
+            && config.autoCleanRelations
+            && $(this.currentTable.rows).first().find('td:first').children().each(function () {
+                myLevel = $(this).parents('tr:first').data('level');
+                myLevel
+                    && $(this).parents('tr:first').data('level', --myLevel)
+                    && $(this).remove();
+            })
+            && config.hierarchyLevel > 1
+            && $(this.currentTable.rows).each(function () {
+                myLevel = $(this).data('level');
+                if (myLevel > 1) {
+                    parentLevel = $(this).prev().data('level');
+                    while (myLevel > parentLevel + 1) {
+                        $(this).find('td:first').children(':first').remove();
+                        $(this).data('level', --myLevel);
+                    }
+                }
+            });
+
+        // If we have a dragObject, then we need to release it,
+        // The row will already have been moved to the right place so we just reset stuff
+        config.onDragClass
+            && $(droppedRow).removeClass(config.onDragClass)
+            || $(droppedRow).css(config.onDropStyle);
+
+        this.dragObject = null;
+        // Call the onDrop method if there is one
+        config.onDrop
+            && this.originalOrder !== this.currentOrder()
+            && $(droppedRow).hide().fadeIn('fast')
+            && config.onDrop(this.currentTable, droppedRow);
+
+        // Call the onDragStop method if there is one
+        config.onDragStop
+            && config.onDragStop(this.currentTable, droppedRow);
+
+        this.currentTable = null; // let go of the table too
+    },
+    mouseup: function(e) {
+        e && e.preventDefault();
+        $.tableDnD.processMouseup();
+        return false;
+    },
+    jsonize: function(pretify) {
+        var table = this.currentTable;
+        if (pretify)
+            return JSON.stringify(
+                this.tableData(table),
+                null,
+                table.tableDnDConfig.jsonPretifySeparator
+            );
+        return JSON.stringify(this.tableData(table));
+    },
+    serialize: function() {
+        return $.param(this.tableData(this.currentTable));
+    },
+    serializeTable: function(table) {
+        var result = "";
+        var paramName = table.tableDnDConfig.serializeParamName || table.id;
+        var rows = table.rows;
+        for (var i=0; i<rows.length; i++) {
+            if (result.length > 0) result += "&";
+            var rowId = rows[i].id;
+            if (rowId && table.tableDnDConfig && table.tableDnDConfig.serializeRegexp) {
+                rowId = rowId.match(table.tableDnDConfig.serializeRegexp)[0];
+                result += paramName + '[]=' + rowId;
+            }
+        }
+        return result;
+    },
+    serializeTables: function() {
+        var result = [];
+        $('table').each(function() {
+            this.id && result.push($.param($.tableDnD.tableData(this)));
+        });
+        return result.join('&');
+    },
+    tableData: function (table) {
+        var config = table.tableDnDConfig,
+            previousIDs  = [],
+            currentLevel = 0,
+            indentLevel  = 0,
+            rowID        = null,
+            data         = {},
+            getSerializeRegexp,
+            paramName,
+            currentID,
+            rows;
+
+        if (!table)
+            table = this.currentTable;
+        if (!table || !table.rows || !table.rows.length)
+            return {error: { code: 500, message: "Not a valid table."}};
+        if (!table.id && !config.serializeParamName)
+            return {error: { code: 500, message: "No serializable unique id provided."}};
+        
+        rows      = config.autoCleanRelations
+                        && table.rows
+                        || $.makeArray(table.rows);
+        paramName = config.serializeParamName || table.id;
+        currentID = paramName;
+
+        getSerializeRegexp = function (rowId) {
+            if (rowId && config && config.serializeRegexp)
+                return rowId.match(config.serializeRegexp)[0];
+            return rowId;
+        };
+
+        data[currentID] = [];
+        !config.autoCleanRelations
+            && $(rows[0]).data('level')
+            && rows.unshift({id: 'undefined'});
+
+
+
+        for (var i=0; i < rows.length; i++) {
+            if (config.hierarchyLevel) {
+                indentLevel = $(rows[i]).data('level') || 0;
+                if (indentLevel === 0) {
+                    currentID   = paramName;
+                    previousIDs = [];
+                }
+                else if (indentLevel > currentLevel) {
+                    previousIDs.push([currentID, currentLevel]);
+                    currentID = getSerializeRegexp(rows[i-1].id);
+                }
+                else if (indentLevel < currentLevel) {
+                    for (var h = 0; h < previousIDs.length; h++) {
+                        if (previousIDs[h][1] === indentLevel)
+                            currentID         = previousIDs[h][0];
+                        if (previousIDs[h][1] >= currentLevel)
+                            previousIDs[h][1] = 0;
+                    }
+                }
+                currentLevel = indentLevel;
+
+                if (!$.isArray(data[currentID]))
+                    data[currentID] = [];
+                rowID = getSerializeRegexp(rows[i].id);
+                rowID && data[currentID].push(rowID);
+            }
+            else {
+                rowID = getSerializeRegexp(rows[i].id);
+                rowID && data[currentID].push(rowID);
+            }
+        }
+        return data;
+    }
+};
+
+jQuery.fn.extend(
+    {
+        tableDnD             : $.tableDnD.build,
+        tableDnDUpdate       : $.tableDnD.updateTables,
+        tableDnDSerialize    : $.proxy($.tableDnD.serialize, $.tableDnD),
+        tableDnDSerializeAll : $.tableDnD.serializeTables,
+        tableDnDData         : $.proxy($.tableDnD.tableData, $.tableDnD)
+    }
+);
+
+}(jQuery, window, window.document);