Initial commit for OpenECOMP SDN-C OA&M

Change-Id: I7ab579fd0d206bf356f36d52dcdf4f71f1fa2680
Signed-off-by: Timoney, Daniel (dt5972) <dtimoney@att.com>

Former-commit-id: 2a9f0edd09581f907e62ec4689b5ac94dd5382ba

1 files changed, 1639 insertions, 0 deletions

diff --git a/dgbuilder/public/red/ui/view.js.orig b/dgbuilder/public/red/ui/view.js.orig
new file mode 100644
index 00000000..73981fd6
--- /dev/null
+++ b/dgbuilder/public/red/ui/view.js.orig
@@ -0,0 +1,1639 @@
+/**
+ * Copyright 2013, 2014 IBM Corp.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+
+RED.view = (function() {
+    var space_width = 5000,
+        space_height = 5000,
+        lineCurveScale = 0.75,
+        scaleFactor = 1,
+        node_width = 100,
+        node_height = 30;
+    
+    var touchLongPressTimeout = 1000,
+        startTouchDistance = 0,
+        startTouchCenter = [],
+        moveTouchCenter = [],
+        touchStartTime = 0;
+
+
+    var activeWorkspace = 0;
+    var workspaceScrollPositions = {};
+
+    var selected_link = null,
+        mousedown_link = null,
+        mousedown_node = null,
+        mousedown_port_type = null,
+        mousedown_port_index = 0,
+        mouseup_node = null,
+        mouse_offset = [0,0],
+        mouse_position = null,
+        mouse_mode = 0,
+        moving_set = [],
+        dirty = false,
+        lasso = null,
+        showStatus = false,
+        lastClickNode = null,
+        dblClickPrimed = null,
+        clickTime = 0,
+        clickElapsed = 0;
+
+    var clipboard = "";
+
+    var status_colours = {
+        "red":    "#c00",
+        "green":  "#5a8",
+        "yellow": "#F9DF31",
+        "blue":   "#53A3F3",
+        "grey":   "#d3d3d3"
+    }
+
+    var outer = d3.select("#chart")
+        .append("svg:svg")
+        .attr("width", space_width)
+        .attr("height", space_height)
+        .attr("pointer-events", "all")
+        .style("cursor","crosshair");
+
+     var vis = outer
+        .append('svg:g')
+        .on("dblclick.zoom", null)
+        .append('svg:g')
+        .on("mousemove", canvasMouseMove)
+        .on("mousedown", canvasMouseDown)
+        .on("mouseup", canvasMouseUp)
+        .on("touchend", function() {
+            clearTimeout(touchStartTime);
+            touchStartTime = null;
+            if  (RED.touch.radialMenu.active()) {
+                return;
+            }
+            if (lasso) {
+                outer_background.attr("fill","#fff");
+            }
+            canvasMouseUp.call(this);
+        })
+        .on("touchcancel", canvasMouseUp)
+        .on("touchstart", function() {
+            var touch0;
+            if (d3.event.touches.length>1) {
+                clearTimeout(touchStartTime);
+                touchStartTime = null;
+                d3.event.preventDefault();
+                touch0 = d3.event.touches.item(0);
+                var touch1 = d3.event.touches.item(1);
+                var a = touch0['pageY']-touch1['pageY'];
+                var b = touch0['pageX']-touch1['pageX'];
+
+                var offset = $("#chart").offset();
+                var scrollPos = [$("#chart").scrollLeft(),$("#chart").scrollTop()];
+                startTouchCenter = [
+                    (touch1['pageX']+(b/2)-offset.left+scrollPos[0])/scaleFactor,
+                    (touch1['pageY']+(a/2)-offset.top+scrollPos[1])/scaleFactor
+                ];
+                moveTouchCenter = [
+                    touch1['pageX']+(b/2),
+                    touch1['pageY']+(a/2)
+                ]
+                startTouchDistance = Math.sqrt((a*a)+(b*b));
+            } else {
+                var obj = d3.select(document.body);
+                touch0 = d3.event.touches.item(0);
+                var pos = [touch0.pageX,touch0.pageY];
+                startTouchCenter = [touch0.pageX,touch0.pageY];
+                startTouchDistance = 0;
+                var point = d3.touches(this)[0];
+                touchStartTime = setTimeout(function() {
+                    touchStartTime = null;
+                    showTouchMenu(obj,pos);
+                    //lasso = vis.append('rect')
+                    //    .attr("ox",point[0])
+                    //    .attr("oy",point[1])
+                    //    .attr("rx",2)
+                    //    .attr("ry",2)
+                    //    .attr("x",point[0])
+                    //    .attr("y",point[1])
+                    //    .attr("width",0)
+                    //    .attr("height",0)
+                    //    .attr("class","lasso");
+                    //outer_background.attr("fill","#e3e3f3");
+                },touchLongPressTimeout);
+            }
+        })
+        .on("touchmove", function(){
+                if  (RED.touch.radialMenu.active()) {
+                    d3.event.preventDefault();
+                    return;
+                }
+                var touch0;
+                if (d3.event.touches.length<2) {
+                    if (touchStartTime) {
+                        touch0 = d3.event.touches.item(0);
+                        var dx = (touch0.pageX-startTouchCenter[0]);
+                        var dy = (touch0.pageY-startTouchCenter[1]);
+                        var d = Math.abs(dx*dx+dy*dy);
+                        if (d > 64) {
+                            clearTimeout(touchStartTime);
+                            touchStartTime = null;
+                        }
+                    } else if (lasso) {
+                        d3.event.preventDefault();
+                    }
+                    canvasMouseMove.call(this);
+                } else {
+                    touch0 = d3.event.touches.item(0);
+                    var touch1 = d3.event.touches.item(1);
+                    var a = touch0['pageY']-touch1['pageY'];
+                    var b = touch0['pageX']-touch1['pageX'];
+                    var offset = $("#chart").offset();
+                    var scrollPos = [$("#chart").scrollLeft(),$("#chart").scrollTop()];
+                    var moveTouchDistance = Math.sqrt((a*a)+(b*b));
+                    var touchCenter = [
+                        touch1['pageX']+(b/2),
+                        touch1['pageY']+(a/2)
+                    ];
+
+                    if (!isNaN(moveTouchDistance)) {
+                        oldScaleFactor = scaleFactor;
+                        scaleFactor = Math.min(2,Math.max(0.3, scaleFactor + (Math.floor(((moveTouchDistance*100)-(startTouchDistance*100)))/10000)));
+
+                        var deltaTouchCenter = [                             // Try to pan whilst zooming - not 100%
+                            startTouchCenter[0]*(scaleFactor-oldScaleFactor),//-(touchCenter[0]-moveTouchCenter[0]),
+                            startTouchCenter[1]*(scaleFactor-oldScaleFactor) //-(touchCenter[1]-moveTouchCenter[1])
+                        ];
+
+                        startTouchDistance = moveTouchDistance;
+                        moveTouchCenter = touchCenter;
+
+                        $("#chart").scrollLeft(scrollPos[0]+deltaTouchCenter[0]);
+                        $("#chart").scrollTop(scrollPos[1]+deltaTouchCenter[1]);
+                        redraw();
+                    }
+                }
+        });
+
+    var outer_background = vis.append('svg:rect')
+        .attr('width', space_width)
+        .attr('height', space_height)
+        .attr('fill','#fff');
+
+    //var gridScale = d3.scale.linear().range([0,2000]).domain([0,2000]);
+    //var grid = vis.append('g');
+    //
+    //grid.selectAll("line.horizontal").data(gridScale.ticks(100)).enter()
+    //    .append("line")
+    //        .attr(
+    //        {
+    //            "class":"horizontal",
+    //            "x1" : 0,
+    //            "x2" : 2000,
+    //            "y1" : function(d){ return gridScale(d);},
+    //            "y2" : function(d){ return gridScale(d);},
+    //            "fill" : "none",
+    //            "shape-rendering" : "crispEdges",
+    //            "stroke" : "#eee",
+    //            "stroke-width" : "1px"
+    //        });
+    //grid.selectAll("line.vertical").data(gridScale.ticks(100)).enter()
+    //    .append("line")
+    //        .attr(
+    //        {
+    //            "class":"vertical",
+    //            "y1" : 0,
+    //            "y2" : 2000,
+    //            "x1" : function(d){ return gridScale(d);},
+    //            "x2" : function(d){ return gridScale(d);},
+    //            "fill" : "none",
+    //            "shape-rendering" : "crispEdges",
+    //            "stroke" : "#eee",
+    //            "stroke-width" : "1px"
+    //        });
+
+
+    var drag_line = vis.append("svg:path").attr("class", "drag_line");
+
+    var workspace_tabs = RED.tabs.create({
+        id: "workspace-tabs",
+        onchange: function(tab) {
+            if (tab.type == "subflow") {
+                $("#workspace-toolbar").show();
+            } else {
+                $("#workspace-toolbar").hide();
+            }
+            var chart = $("#chart");
+            if (activeWorkspace !== 0) {
+                workspaceScrollPositions[activeWorkspace] = {
+                    left:chart.scrollLeft(),
+                    top:chart.scrollTop()
+                };
+            }
+            var scrollStartLeft = chart.scrollLeft();
+            var scrollStartTop = chart.scrollTop();
+
+            activeWorkspace = tab.id;
+            if (workspaceScrollPositions[activeWorkspace]) {
+                chart.scrollLeft(workspaceScrollPositions[activeWorkspace].left);
+                chart.scrollTop(workspaceScrollPositions[activeWorkspace].top);
+            } else {
+                chart.scrollLeft(0);
+                chart.scrollTop(0);
+            }
+            var scrollDeltaLeft = chart.scrollLeft() - scrollStartLeft;
+            var scrollDeltaTop = chart.scrollTop() - scrollStartTop;
+            if (mouse_position != null) {
+                mouse_position[0] += scrollDeltaLeft;
+                mouse_position[1] += scrollDeltaTop;
+            }
+
+            clearSelection();
+            RED.nodes.eachNode(function(n) {
+                    n.dirty = true;
+            });
+            redraw();
+        },
+        ondblclick: function(tab) {
+            showRenameWorkspaceDialog(tab.id);
+        },
+        onadd: function(tab) {
+            RED.menu.addItem("btn-workspace-menu",{
+                id:"btn-workspace-menu-"+tab.id.replace(".","-"),
+                label:tab.label,
+                onselect:function() {
+                    workspace_tabs.activateTab(tab.id);
+                }
+            });
+            RED.menu.setDisabled("btn-workspace-delete",workspace_tabs.count() == 1);
+        },
+        onremove: function(tab) {
+            RED.menu.setDisabled("btn-workspace-delete",workspace_tabs.count() == 1);
+            RED.menu.removeItem("btn-workspace-menu-"+tab.id.replace(".","-"));
+        }
+    });
+
+    var workspaceIndex = 0;
+
+    function addWorkspace() {
+        var tabId = RED.nodes.id();
+        do {
+            workspaceIndex += 1;
+        } while($("#workspace-tabs a[title='Sheet "+workspaceIndex+"']").size() !== 0);
+
+        var ws = {type:"tab",id:tabId,label:"Sheet "+workspaceIndex};
+        RED.nodes.addWorkspace(ws);
+        workspace_tabs.addTab(ws);
+        workspace_tabs.activateTab(tabId);
+        RED.history.push({t:'add',workspaces:[ws],dirty:dirty});
+        RED.view.dirty(true);
+    }
+    $(function() {
+        $('#btn-workspace-add-tab').on("click",addWorkspace);
+        $('#btn-workspace-add').on("click",addWorkspace);
+        $('#btn-workspace-edit').on("click",function() {
+            showRenameWorkspaceDialog(activeWorkspace);
+        });
+        $('#btn-workspace-delete').on("click",function() {
+            deleteWorkspace(activeWorkspace);
+        });
+    });
+
+    function deleteWorkspace(id) {
+        if (workspace_tabs.count() == 1) {
+            return;
+        }
+        var ws = RED.nodes.workspace(id);
+        $( "#node-dialog-delete-workspace" ).dialog('option','workspace',ws);
+        $( "#node-dialog-delete-workspace-name" ).text(ws.label);
+        $( "#node-dialog-delete-workspace" ).dialog('open');
+    }
+
+    function canvasMouseDown() {
+        if (!mousedown_node && !mousedown_link) {
+            selected_link = null;
+            updateSelection();
+        }
+        if (mouse_mode === 0) {
+            if (lasso) {
+                lasso.remove();
+                lasso = null;
+            }
+            
+            if (!touchStartTime) {
+                var point = d3.mouse(this);
+                lasso = vis.append('rect')
+                    .attr("ox",point[0])
+                    .attr("oy",point[1])
+                    .attr("rx",2)
+                    .attr("ry",2)
+                    .attr("x",point[0])
+                    .attr("y",point[1])
+                    .attr("width",0)
+                    .attr("height",0)
+                    .attr("class","lasso");
+                d3.event.preventDefault();
+            }
+        }
+    }
+
+    function canvasMouseMove() {
+        mouse_position = d3.touches(this)[0]||d3.mouse(this);
+
+        // Prevent touch scrolling...
+        //if (d3.touches(this)[0]) {
+        //    d3.event.preventDefault();
+        //}
+
+        // TODO: auto scroll the container
+        //var point = d3.mouse(this);
+        //if (point[0]-container.scrollLeft < 30 && container.scrollLeft > 0) { container.scrollLeft -= 15; }
+        //console.log(d3.mouse(this),container.offsetWidth,container.offsetHeight,container.scrollLeft,container.scrollTop);
+
+        if (lasso) {
+            var ox = parseInt(lasso.attr("ox"));
+            var oy = parseInt(lasso.attr("oy"));
+            var x = parseInt(lasso.attr("x"));
+            var y = parseInt(lasso.attr("y"));
+            var w;
+            var h;
+            if (mouse_position[0] < ox) {
+                x = mouse_position[0];
+                w = ox-x;
+            } else {
+                w = mouse_position[0]-x;
+            }
+            if (mouse_position[1] < oy) {
+                y = mouse_position[1];
+                h = oy-y;
+            } else {
+                h = mouse_position[1]-y;
+            }
+            lasso
+                .attr("x",x)
+                .attr("y",y)
+                .attr("width",w)
+                .attr("height",h)
+            ;
+            return;
+        }
+
+        if (mouse_mode != RED.state.IMPORT_DRAGGING && !mousedown_node && selected_link == null) {
+            return;
+        }
+
+        var mousePos;
+        if (mouse_mode == RED.state.JOINING) {
+            // update drag line
+            drag_line.attr("class", "drag_line");
+            mousePos = mouse_position;
+            var numOutputs = (mousedown_port_type === 0)?(mousedown_node.outputs || 1):1;
+            var sourcePort = mousedown_port_index;
+            var portY = -((numOutputs-1)/2)*13 +13*sourcePort;
+
+            var sc = (mousedown_port_type === 0)?1:-1;
+
+            var dy = mousePos[1]-(mousedown_node.y+portY);
+            var dx = mousePos[0]-(mousedown_node.x+sc*mousedown_node.w/2);
+            var delta = Math.sqrt(dy*dy+dx*dx);
+            var scale = lineCurveScale;
+            var scaleY = 0;
+
+            if (delta < node_width) {
+                scale = 0.75-0.75*((node_width-delta)/node_width);
+            }
+            if (dx*sc < 0) {
+                scale += 2*(Math.min(5*node_width,Math.abs(dx))/(5*node_width));
+                if (Math.abs(dy) < 3*node_height) {
+                    scaleY = ((dy>0)?0.5:-0.5)*(((3*node_height)-Math.abs(dy))/(3*node_height))*(Math.min(node_width,Math.abs(dx))/(node_width)) ;
+                }
+            }
+
+            drag_line.attr("d",
+                "M "+(mousedown_node.x+sc*mousedown_node.w/2)+" "+(mousedown_node.y+portY)+
+                " C "+(mousedown_node.x+sc*(mousedown_node.w/2+node_width*scale))+" "+(mousedown_node.y+portY+scaleY*node_height)+" "+
+                (mousePos[0]-sc*(scale)*node_width)+" "+(mousePos[1]-scaleY*node_height)+" "+
+                mousePos[0]+" "+mousePos[1]
+                );
+            d3.event.preventDefault();
+        } else if (mouse_mode == RED.state.MOVING) {
+            mousePos = mouse_position;
+            var d = (mouse_offset[0]-mousePos[0])*(mouse_offset[0]-mousePos[0]) + (mouse_offset[1]-mousePos[1])*(mouse_offset[1]-mousePos[1]);
+            if (d > 2) {
+                mouse_mode = RED.state.MOVING_ACTIVE;
+                clickElapsed = 0;
+            }
+        } else if (mouse_mode == RED.state.MOVING_ACTIVE || mouse_mode == RED.state.IMPORT_DRAGGING) {
+            mousePos = mouse_position;
+            var node;
+            var i;
+            var minX = 0;
+            var minY = 0;
+            for (var n = 0; n<moving_set.length; n++) {
+                node = moving_set[n];
+                if (d3.event.shiftKey) {
+                    node.n.ox = node.n.x;
+                    node.n.oy = node.n.y;
+                }
+                node.n.x = mousePos[0]+node.dx;
+                node.n.y = mousePos[1]+node.dy;
+                node.n.dirty = true;
+                minX = Math.min(node.n.x-node.n.w/2-5,minX);
+                minY = Math.min(node.n.y-node.n.h/2-5,minY);
+            }
+            if (minX !== 0 || minY !== 0) {
+                for (i = 0; i<moving_set.length; i++) {
+                    node = moving_set[i];
+                    node.n.x -= minX;
+                    node.n.y -= minY;
+                }
+            }
+            if (d3.event.shiftKey && moving_set.length > 0) {
+                var gridOffset =  [0,0];
+                node = moving_set[0];
+                gridOffset[0] = node.n.x-(20*Math.floor((node.n.x-node.n.w/2)/20)+node.n.w/2);
+                gridOffset[1] = node.n.y-(20*Math.floor(node.n.y/20));
+                if (gridOffset[0] !== 0 || gridOffset[1] !== 0) {
+                    for (i = 0; i<moving_set.length; i++) {
+                        node = moving_set[i];
+                        node.n.x -= gridOffset[0];
+                        node.n.y -= gridOffset[1];
+                        if (node.n.x == node.n.ox && node.n.y == node.n.oy) {
+                            node.dirty = false;
+                        }
+                    }
+                }
+            }
+        }
+        redraw();
+    }
+
+    function canvasMouseUp() {
+        if (mousedown_node && mouse_mode == RED.state.JOINING) {
+            drag_line.attr("class", "drag_line_hidden");
+        }
+        if (lasso) {
+            var x = parseInt(lasso.attr("x"));
+            var y = parseInt(lasso.attr("y"));
+            var x2 = x+parseInt(lasso.attr("width"));
+            var y2 = y+parseInt(lasso.attr("height"));
+            if (!d3.event.ctrlKey) {
+                clearSelection();
+            }
+            RED.nodes.eachNode(function(n) {
+                if (n.z == activeWorkspace && !n.selected) {
+                    n.selected = (n.x > x && n.x < x2 && n.y > y && n.y < y2);
+                    if (n.selected) {
+                        n.dirty = true;
+                        moving_set.push({n:n});
+                    }
+                }
+            });
+            updateSelection();
+            lasso.remove();
+            lasso = null;
+        } else if (mouse_mode == RED.state.DEFAULT && mousedown_link == null && !d3.event.ctrlKey ) {
+            clearSelection();
+            updateSelection();
+        }
+        if (mouse_mode == RED.state.MOVING_ACTIVE) {
+            if (moving_set.length > 0) {
+                var ns = [];
+                for (var j=0;j<moving_set.length;j++) {
+                    ns.push({n:moving_set[j].n,ox:moving_set[j].ox,oy:moving_set[j].oy});
+                }
+                RED.history.push({t:'move',nodes:ns,dirty:dirty});
+            }
+        }
+        if (mouse_mode == RED.state.MOVING || mouse_mode == RED.state.MOVING_ACTIVE) {
+            for (var i=0;i<moving_set.length;i++) {
+                delete moving_set[i].ox;
+                delete moving_set[i].oy;
+            }
+        }
+        if (mouse_mode == RED.state.IMPORT_DRAGGING) {
+            RED.keyboard.remove(/* ESCAPE */ 27);
+            setDirty(true);
+        }
+        redraw();
+        // clear mouse event vars
+        resetMouseVars();
+    }
+
+    $('#btn-zoom-out').click(function() {zoomOut();});
+    $('#btn-zoom-zero').click(function() {zoomZero();});
+    $('#btn-zoom-in').click(function() {zoomIn();});
+    $("#chart").on('DOMMouseScroll mousewheel', function (evt) {
+        if ( evt.altKey ) {
+            evt.preventDefault();
+            evt.stopPropagation();
+            var move = -(evt.originalEvent.detail) || evt.originalEvent.wheelDelta;
+            if (move <= 0) { zoomOut(); }
+            else { zoomIn(); }
+        }
+    });
+    $("#chart").droppable({
+            accept:".palette_node",
+            drop: function( event, ui ) {
+                d3.event = event;
+                var selected_tool = ui.draggable[0].type;
+                var mousePos = d3.touches(this)[0]||d3.mouse(this);
+                mousePos[1] += this.scrollTop;
+                mousePos[0] += this.scrollLeft;
+                mousePos[1] /= scaleFactor;
+                mousePos[0] /= scaleFactor;
+
+                var nn = { id:(1+Math.random()*4294967295).toString(16),x: mousePos[0],y:mousePos[1],w:node_width,z:activeWorkspace};
+
+                nn.type = selected_tool;
+                nn._def = RED.nodes.getType(nn.type);
+                nn.outputs = nn._def.outputs;
+                nn.changed = true;
+
+                for (var d in nn._def.defaults) {
+                    if (nn._def.defaults.hasOwnProperty(d)) {
+                        nn[d] = nn._def.defaults[d].value;
+                    }
+                }
+
+                if (nn._def.onadd) {
+                    nn._def.onadd.call(nn);
+                }
+
+                nn.h = Math.max(node_height,(nn.outputs||0) * 15);
+                RED.history.push({t:'add',nodes:[nn.id],dirty:dirty});
+                RED.nodes.add(nn);
+                RED.editor.validateNode(nn);
+                setDirty(true);
+                // auto select dropped node - so info shows (if visible)
+                clearSelection();
+                nn.selected = true;
+                moving_set.push({n:nn});
+                updateSelection();
+                redraw();
+
+                if (nn._def.autoedit) {
+                    RED.editor.edit(nn);
+                }
+            }
+    });
+
+    function zoomIn() {
+        if (scaleFactor < 2) {
+            scaleFactor += 0.1;
+            redraw();
+        }
+    }
+    function zoomOut() {
+        if (scaleFactor > 0.3) {
+            scaleFactor -= 0.1;
+            redraw();
+        }
+    }
+    function zoomZero() {
+        scaleFactor = 1;
+        redraw();
+    }
+
+    function selectAll() {
+        RED.nodes.eachNode(function(n) {
+            if (n.z == activeWorkspace) {
+                if (!n.selected) {
+                    n.selected = true;
+                    n.dirty = true;
+                    moving_set.push({n:n});
+                }
+            }
+        });
+        selected_link = null;
+        updateSelection();
+        redraw();
+    }
+
+    function clearSelection() {
+        for (var i=0;i<moving_set.length;i++) {
+            var n = moving_set[i];
+            n.n.dirty = true;
+            n.n.selected = false;
+        }
+        moving_set = [];
+        selected_link = null;
+    }
+
+    function updateSelection() {
+        if (moving_set.length === 0) {
+            RED.menu.setDisabled("btn-export-menu",true);
+            RED.menu.setDisabled("btn-export-clipboard",true);
+            RED.menu.setDisabled("btn-export-library",true);
+        } else {
+            RED.menu.setDisabled("btn-export-menu",false);
+            RED.menu.setDisabled("btn-export-clipboard",false);
+            RED.menu.setDisabled("btn-export-library",false);
+        }
+        if (moving_set.length === 0 && selected_link == null) {
+            RED.keyboard.remove(/* backspace */ 8);
+            RED.keyboard.remove(/* delete */ 46);
+            RED.keyboard.remove(/* c */ 67);
+            RED.keyboard.remove(/* x */ 88);
+        } else {
+            RED.keyboard.add(/* backspace */ 8,function(){deleteSelection();d3.event.preventDefault();});
+            RED.keyboard.add(/* delete */ 46,function(){deleteSelection();d3.event.preventDefault();});
+            RED.keyboard.add(/* c */ 67,{ctrl:true},function(){copySelection();d3.event.preventDefault();});
+            RED.keyboard.add(/* x */ 88,{ctrl:true},function(){copySelection();deleteSelection();d3.event.preventDefault();});
+        }
+        if (moving_set.length === 0) {
+            RED.keyboard.remove(/* up   */ 38);
+            RED.keyboard.remove(/* down */ 40);
+            RED.keyboard.remove(/* left */ 37);
+            RED.keyboard.remove(/* right*/ 39);
+        } else {
+            RED.keyboard.add(/* up   */ 38, function() { if(d3.event.shiftKey){moveSelection(  0,-20)}else{moveSelection( 0,-1);}d3.event.preventDefault();},endKeyboardMove);
+            RED.keyboard.add(/* down */ 40, function() { if(d3.event.shiftKey){moveSelection(  0, 20)}else{moveSelection( 0, 1);}d3.event.preventDefault();},endKeyboardMove);
+            RED.keyboard.add(/* left */ 37, function() { if(d3.event.shiftKey){moveSelection(-20,  0)}else{moveSelection(-1, 0);}d3.event.preventDefault();},endKeyboardMove);
+            RED.keyboard.add(/* right*/ 39, function() { if(d3.event.shiftKey){moveSelection( 20,  0)}else{moveSelection( 1, 0);}d3.event.preventDefault();},endKeyboardMove);
+        }
+        if (moving_set.length == 1) {
+            RED.sidebar.info.refresh(moving_set[0].n);
+        } else {
+            RED.sidebar.info.clear();
+        }
+    }
+    function endKeyboardMove() {
+        var ns = [];
+        for (var i=0;i<moving_set.length;i++) {
+            ns.push({n:moving_set[i].n,ox:moving_set[i].ox,oy:moving_set[i].oy});
+            delete moving_set[i].ox;
+            delete moving_set[i].oy;
+        }
+        RED.history.push({t:'move',nodes:ns,dirty:dirty});
+    }
+    function moveSelection(dx,dy) {
+        var minX = 0;
+        var minY = 0;
+        var node;
+        
+        for (var i=0;i<moving_set.length;i++) {
+            node = moving_set[i];
+            if (node.ox == null && node.oy == null) {
+                node.ox = node.n.x;
+                node.oy = node.n.y;
+            }
+            node.n.x += dx;
+            node.n.y += dy;
+            node.n.dirty = true;
+            minX = Math.min(node.n.x-node.n.w/2-5,minX);
+            minY = Math.min(node.n.y-node.n.h/2-5,minY);
+        }
+
+        if (minX !== 0 || minY !== 0) {
+            for (var n = 0; n<moving_set.length; n++) {
+                node = moving_set[n];
+                node.n.x -= minX;
+                node.n.y -= minY;
+            }
+        }
+
+        redraw();
+    }
+    function deleteSelection() {
+        var removedNodes = [];
+        var removedLinks = [];
+        var startDirty = dirty;
+        if (moving_set.length > 0) {
+            for (var i=0;i<moving_set.length;i++) {
+                var node = moving_set[i].n;
+                node.selected = false;
+                if (node.x < 0) {
+                    node.x = 25
+                }
+                var rmlinks = RED.nodes.remove(node.id);
+                removedNodes.push(node);
+                removedLinks = removedLinks.concat(rmlinks);
+            }
+            moving_set = [];
+            setDirty(true);
+        }
+        if (selected_link) {
+            RED.nodes.removeLink(selected_link);
+            removedLinks.push(selected_link);
+            setDirty(true);
+        }
+        RED.history.push({t:'delete',nodes:removedNodes,links:removedLinks,dirty:startDirty});
+
+        selected_link = null;
+        updateSelection();
+        redraw();
+    }
+
+    function copySelection() {
+        if (moving_set.length > 0) {
+            var nns = [];
+            for (var n=0;n<moving_set.length;n++) {
+                var node = moving_set[n].n;
+                nns.push(RED.nodes.convertNode(node));
+            }
+            clipboard = JSON.stringify(nns);
+            RED.notify(moving_set.length+" node"+(moving_set.length>1?"s":"")+" copied");
+        }
+    }
+
+
+    function calculateTextWidth(str) {
+        var sp = document.createElement("span");
+        sp.className = "node_label";
+        sp.style.position = "absolute";
+        sp.style.top = "-1000px";
+        sp.innerHTML = (str||"").replace(/&/g,"&amp;").replace(/</g,"&lt;").replace(/>/g,"&gt;");
+        document.body.appendChild(sp);
+        var w = sp.offsetWidth;
+        document.body.removeChild(sp);
+        return 50+w;
+    }
+
+    function resetMouseVars() {
+        mousedown_node = null;
+        mouseup_node = null;
+        mousedown_link = null;
+        mouse_mode = 0;
+        mousedown_port_type = 0;
+    }
+
+    function portMouseDown(d,portType,portIndex) {
+        // disable zoom
+        //vis.call(d3.behavior.zoom().on("zoom"), null);
+        mousedown_node = d;
+        selected_link = null;
+        mouse_mode = RED.state.JOINING;
+        mousedown_port_type = portType;
+        mousedown_port_index = portIndex || 0;
+        document.body.style.cursor = "crosshair";
+        d3.event.preventDefault();
+    }
+
+    function portMouseUp(d,portType,portIndex) {
+        document.body.style.cursor = "";
+        if (mouse_mode == RED.state.JOINING && mousedown_node) {
+            if (typeof TouchEvent != "undefined" && d3.event instanceof TouchEvent) {
+                RED.nodes.eachNode(function(n) {
+                        if (n.z == activeWorkspace) {
+                            var hw = n.w/2;
+                            var hh = n.h/2;
+                            if (n.x-hw<mouse_position[0] && n.x+hw> mouse_position[0] &&
+                                n.y-hh<mouse_position[1] && n.y+hh>mouse_position[1]) {
+                                    mouseup_node = n;
+                                    portType = mouseup_node._def.inputs>0?1:0;
+                                    portIndex = 0;
+                            }
+                        }
+                });
+            } else {
+                mouseup_node = d;
+            }
+            if (portType == mousedown_port_type || mouseup_node === mousedown_node) {
+                drag_line.attr("class", "drag_line_hidden");
+                resetMouseVars();
+                return;
+            }
+            var src,dst,src_port;
+            if (mousedown_port_type === 0) {
+                src = mousedown_node;
+                src_port = mousedown_port_index;
+                dst = mouseup_node;
+            } else if (mousedown_port_type == 1) {
+                src = mouseup_node;
+                dst = mousedown_node;
+                src_port = portIndex;
+            }
+
+            var existingLink = false;
+            RED.nodes.eachLink(function(d) {
+                    existingLink = existingLink || (d.source === src && d.target === dst && d.sourcePort == src_port);
+            });
+            if (!existingLink) {
+                var link = {source: src, sourcePort:src_port, target: dst};
+                RED.nodes.addLink(link);
+                RED.history.push({t:'add',links:[link],dirty:dirty});
+                setDirty(true);
+            }
+            selected_link = null;
+            redraw();
+        }
+    }
+
+    function nodeMouseUp(d) {
+        if (dblClickPrimed && mousedown_node == d && clickElapsed > 0 && clickElapsed < 750) {
+            RED.editor.edit(d);
+            clickElapsed = 0;
+            d3.event.stopPropagation();
+            return;
+        }
+        portMouseUp(d, d._def.inputs > 0 ? 1 : 0, 0);
+    }
+
+    function nodeMouseDown(d) {
+        //var touch0 = d3.event;
+        //var pos = [touch0.pageX,touch0.pageY];
+        //RED.touch.radialMenu.show(d3.select(this),pos);
+        if (mouse_mode == RED.state.IMPORT_DRAGGING) {
+            RED.keyboard.remove(/* ESCAPE */ 27);
+            updateSelection();
+            setDirty(true);
+            redraw();
+            resetMouseVars();
+            d3.event.stopPropagation();
+            return;
+        }
+        mousedown_node = d;
+        var now = Date.now();
+        clickElapsed = now-clickTime;
+        clickTime = now;
+
+        dblClickPrimed = (lastClickNode == mousedown_node);
+        lastClickNode = mousedown_node;
+        
+        var i;
+        
+        if (d.selected && d3.event.ctrlKey) {
+            d.selected = false;
+            for (i=0;i<moving_set.length;i+=1) {
+                if (moving_set[i].n === d) {
+                    moving_set.splice(i,1);
+                    break;
+                }
+            }
+        } else {
+            if (d3.event.shiftKey) {
+                clearSelection();
+                var cnodes = RED.nodes.getAllFlowNodes(mousedown_node);
+                for (var n=0;n<cnodes.length;n++) {
+                    cnodes[n].selected = true;
+                    cnodes[n].dirty = true;
+                    moving_set.push({n:cnodes[n]});
+                }
+            } else if (!d.selected) {
+                if (!d3.event.ctrlKey) {
+                    clearSelection();
+                }
+                mousedown_node.selected = true;
+                moving_set.push({n:mousedown_node});
+            }
+            selected_link = null;
+            if (d3.event.button != 2) {
+                mouse_mode = RED.state.MOVING;
+                var mouse = d3.touches(this)[0]||d3.mouse(this);
+                mouse[0] += d.x-d.w/2;
+                mouse[1] += d.y-d.h/2;
+                for (i=0;i<moving_set.length;i++) {
+                    moving_set[i].ox = moving_set[i].n.x;
+                    moving_set[i].oy = moving_set[i].n.y;
+                    moving_set[i].dx = moving_set[i].n.x-mouse[0];
+                    moving_set[i].dy = moving_set[i].n.y-mouse[1];
+                }
+                mouse_offset = d3.mouse(document.body);
+                if (isNaN(mouse_offset[0])) {
+                    mouse_offset = d3.touches(document.body)[0];
+                }
+            }
+        }
+        d.dirty = true;
+        updateSelection();
+        redraw();
+        d3.event.stopPropagation();
+    }
+
+    function nodeButtonClicked(d) {
+        if (d._def.button.toggle) {
+            d[d._def.button.toggle] = !d[d._def.button.toggle];
+            d.dirty = true;
+        }
+        if (d._def.button.onclick) {
+            d._def.button.onclick.call(d);
+        }
+        if (d.dirty) {
+            redraw();
+        }
+        d3.event.preventDefault();
+    }
+
+    function showTouchMenu(obj,pos) {
+        var mdn = mousedown_node;
+        var options = [];
+        options.push({name:"delete",disabled:(moving_set.length===0),onselect:function() {deleteSelection();}});
+        options.push({name:"cut",disabled:(moving_set.length===0),onselect:function() {copySelection();deleteSelection();}});
+        options.push({name:"copy",disabled:(moving_set.length===0),onselect:function() {copySelection();}});
+        options.push({name:"paste",disabled:(clipboard.length===0),onselect:function() {importNodes(clipboard,true);}});
+        options.push({name:"edit",disabled:(moving_set.length != 1),onselect:function() { RED.editor.edit(mdn);}});
+        options.push({name:"select",onselect:function() {selectAll();}});
+        options.push({name:"undo",disabled:(RED.history.depth() === 0),onselect:function() {RED.history.pop();}});
+        
+        RED.touch.radialMenu.show(obj,pos,options);
+        resetMouseVars();
+    }
+    function redraw() {
+        vis.attr("transform","scale("+scaleFactor+")");
+        outer.attr("width", space_width*scaleFactor).attr("height", space_height*scaleFactor);
+
+        if (mouse_mode != RED.state.JOINING) {
+            // Don't bother redrawing nodes if we're drawing links
+
+            var node = vis.selectAll(".nodegroup").data(RED.nodes.nodes.filter(function(d) { return d.z == activeWorkspace }),function(d){return d.id});
+            node.exit().remove();
+
+            var nodeEnter = node.enter().insert("svg:g").attr("class", "node nodegroup");
+            nodeEnter.each(function(d,i) {
+                    var node = d3.select(this);
+                    node.attr("id",d.id);
+                    var l = d._def.label;
+                    l = (typeof l === "function" ? l.call(d) : l)||"";
+                    d.w = Math.max(node_width,calculateTextWidth(l)+(d._def.inputs>0?7:0) );
+                    d.h = Math.max(node_height,(d.outputs||0) * 15);
+
+                    if (d._def.badge) {
+                        var badge = node.append("svg:g").attr("class","node_badge_group");
+                        var badgeRect = badge.append("rect").attr("class","node_badge").attr("rx",5).attr("ry",5).attr("width",40).attr("height",15);
+                        badge.append("svg:text").attr("class","node_badge_label").attr("x",35).attr("y",11).attr('text-anchor','end').text(d._def.badge());
+                        if (d._def.onbadgeclick) {
+                            badgeRect.attr("cursor","pointer")
+                                .on("click",function(d) { d._def.onbadgeclick.call(d);d3.event.preventDefault();});
+                        }
+                    }
+
+                    if (d._def.button) {
+                        var nodeButtonGroup = node.append('svg:g')
+                            .attr("transform",function(d) { return "translate("+((d._def.align == "right") ? 94 : -25)+",2)"; })
+                            .attr("class",function(d) { return "node_button "+((d._def.align == "right") ? "node_right_button" : "node_left_button"); });
+                        nodeButtonGroup.append('rect')
+                            .attr("rx",8)
+                            .attr("ry",8)
+                            .attr("width",32)
+                            .attr("height",node_height-4)
+                            .attr("fill","#eee");//function(d) { return d._def.color;})
+                        nodeButtonGroup.append('rect')
+                            .attr("x",function(d) { return d._def.align == "right"? 10:5})
+                            .attr("y",4)
+                            .attr("rx",5)
+                            .attr("ry",5)
+                            .attr("width",16)
+                            .attr("height",node_height-12)
+                            .attr("fill",function(d) { return d._def.color;})
+                            .attr("cursor","pointer")
+                            .on("mousedown",function(d) {if (!lasso) { d3.select(this).attr("fill-opacity",0.2);d3.event.preventDefault(); d3.event.stopPropagation();}})
+                            .on("mouseup",function(d) {if (!lasso) { d3.select(this).attr("fill-opacity",0.4);d3.event.preventDefault();d3.event.stopPropagation();}})
+                            .on("mouseover",function(d) {if (!lasso) { d3.select(this).attr("fill-opacity",0.4);}})
+                            .on("mouseout",function(d) {if (!lasso) {
+                                var op = 1;
+                                if (d._def.button.toggle) {
+                                    op = d[d._def.button.toggle]?1:0.2;
+                                }
+                                d3.select(this).attr("fill-opacity",op);
+                            }})
+                            .on("click",nodeButtonClicked)
+                            .on("touchstart",nodeButtonClicked)
+                    }
+
+                    var mainRect = node.append("rect")
+                        .attr("class", "node")
+                        .classed("node_unknown",function(d) { return d.type == "unknown"; })
+                        .attr("rx", 6)
+                        .attr("ry", 6)
+                        .attr("fill",function(d) { return d._def.color;})
+                        .on("mouseup",nodeMouseUp)
+                        .on("mousedown",nodeMouseDown)
+                        .on("touchstart",function(d) {
+                            var obj = d3.select(this);
+                            var touch0 = d3.event.touches.item(0);
+                            var pos = [touch0.pageX,touch0.pageY];
+                            startTouchCenter = [touch0.pageX,touch0.pageY];
+                            startTouchDistance = 0;
+                            touchStartTime = setTimeout(function() {
+                                showTouchMenu(obj,pos);
+                            },touchLongPressTimeout);
+                            nodeMouseDown.call(this,d)       
+                        })
+                        .on("touchend", function(d) {
+                            clearTimeout(touchStartTime);
+                            touchStartTime = null;
+                            if  (RED.touch.radialMenu.active()) {
+                                d3.event.stopPropagation();
+                                return;
+                            }
+                            nodeMouseUp.call(this,d);
+                        })
+                        .on("mouseover",function(d) {
+                                if (mouse_mode === 0) {
+                                    var node = d3.select(this);
+                                    node.classed("node_hovered",true);
+                                }
+                        })
+                        .on("mouseout",function(d) {
+                                var node = d3.select(this);
+                                node.classed("node_hovered",false);
+                        });
+
+                   //node.append("rect").attr("class", "node-gradient-top").attr("rx", 6).attr("ry", 6).attr("height",30).attr("stroke","none").attr("fill","url(#gradient-top)").style("pointer-events","none");
+                   //node.append("rect").attr("class", "node-gradient-bottom").attr("rx", 6).attr("ry", 6).attr("height",30).attr("stroke","none").attr("fill","url(#gradient-bottom)").style("pointer-events","none");
+
+                    if (d._def.icon) {
+                        
+                        var icon_group = node.append("g")
+                            .attr("class","node_icon_group")
+                            .attr("x",0).attr("y",0);
+                        
+                        var icon_shade = icon_group.append("rect")
+                            .attr("x",0).attr("y",0)
+                            .attr("class","node_icon_shade")
+                            .attr("width","30")
+                            .attr("stroke","none")
+                            .attr("fill","#000")
+                            .attr("fill-opacity","0.05")
+                            .attr("height",function(d){return Math.min(50,d.h-4);});
+                            
+                        var icon = icon_group.append("image")
+                            .attr("xlink:href","icons/"+d._def.icon)
+                            .attr("class","node_icon")
+                            .attr("x",0)
+                            .attr("width","30")
+                            .attr("height","30");
+                            
+                        var icon_shade_border = icon_group.append("path")
+                            .attr("d",function(d) { return "M 30 1 l 0 "+(d.h-2)})
+                            .attr("class","node_icon_shade_border")
+                            .attr("stroke-opacity","0.1")
+                            .attr("stroke","#000")
+                            .attr("stroke-width","2");
+
+                        if ("right" == d._def.align) {
+                            icon_group.attr('class','node_icon_group node_icon_group_'+d._def.align);
+                            icon_shade_border.attr("d",function(d) { return "M 0 1 l 0 "+(d.h-2)})
+                            //icon.attr('class','node_icon node_icon_'+d._def.align);
+                            //icon.attr('class','node_icon_shade node_icon_shade_'+d._def.align);
+                            //icon.attr('class','node_icon_shade_border node_icon_shade_border_'+d._def.align);
+                        }
+                        
+                        //if (d._def.inputs > 0 && d._def.align == null) {
+                        //    icon_shade.attr("width",35);
+                        //    icon.attr("transform","translate(5,0)");
+                        //    icon_shade_border.attr("transform","translate(5,0)");
+                        //}
+                        //if (d._def.outputs > 0 && "right" == d._def.align) {
+                        //    icon_shade.attr("width",35); //icon.attr("x",5);
+                        //}
+                        
+                        var img = new Image();
+                        img.src = "icons/"+d._def.icon;
+                        img.onload = function() {
+                            icon.attr("width",Math.min(img.width,30));
+                            icon.attr("height",Math.min(img.height,30));
+                            icon.attr("x",15-Math.min(img.width,30)/2);
+                            //if ("right" == d._def.align) {
+                            //    icon.attr("x",function(d){return d.w-img.width-1-(d.outputs>0?5:0);});
+                            //    icon_shade.attr("x",function(d){return d.w-30});
+                            //    icon_shade_border.attr("d",function(d){return "M "+(d.w-30)+" 1 l 0 "+(d.h-2);});
+                            //}
+                        }
+                        
+                        //icon.style("pointer-events","none");
+                        icon_group.style("pointer-events","none");
+                    }
+                    var text = node.append('svg:text').attr('class','node_label').attr('x', 38).attr('dy', '.35em').attr('text-anchor','start');
+                    if (d._def.align) {
+                        text.attr('class','node_label node_label_'+d._def.align);
+                        text.attr('text-anchor','end');
+                    }
+
+                    var status = node.append("svg:g").attr("class","node_status_group").style("display","none");
+
+                    var statusRect = status.append("rect").attr("class","node_status")
+                                        .attr("x",6).attr("y",1).attr("width",9).attr("height",9)
+                                        .attr("rx",2).attr("ry",2).attr("stroke-width","3");
+
+                    var statusLabel = status.append("svg:text")
+                        .attr("class","node_status_label")
+                        .attr('x',20).attr('y',9)
+                        .style({
+                                'stroke-width': 0,
+                                'fill': '#888',
+                                'font-size':'9pt',
+                                'stroke':'#000',
+                                'text-anchor':'start'
+                        });
+
+                    //node.append("circle").attr({"class":"centerDot","cx":0,"cy":0,"r":5});
+
+                    if (d._def.inputs > 0) {
+                        text.attr("x",38);
+                        node.append("rect").attr("class","port port_input").attr("rx",3).attr("ry",3).attr("x",-5).attr("width",10).attr("height",10)
+                            .on("mousedown",function(d){portMouseDown(d,1,0);})
+                            .on("touchstart",function(d){portMouseDown(d,1,0);})
+                            .on("mouseup",function(d){portMouseUp(d,1,0);} )
+                            .on("touchend",function(d){portMouseUp(d,1,0);} )
+                            .on("mouseover",function(d) { var port = d3.select(this); port.classed("port_hovered",(mouse_mode!=RED.state.JOINING || mousedown_port_type != 1 ));})
+                            .on("mouseout",function(d) { var port = d3.select(this); port.classed("port_hovered",false);})
+                    }
+
+                    //node.append("path").attr("class","node_error").attr("d","M 3,-3 l 10,0 l -5,-8 z");
+                    node.append("image").attr("class","node_error hidden").attr("xlink:href","icons/node-error.png").attr("x",0).attr("y",-6).attr("width",10).attr("height",9);
+                    node.append("image").attr("class","node_changed hidden").attr("xlink:href","icons/node-changed.png").attr("x",12).attr("y",-6).attr("width",10).attr("height",10);
+            });
+
+            node.each(function(d,i) {
+                    if (d.dirty) {
+                        //if (d.x < -50) deleteSelection();  // Delete nodes if dragged back to palette
+                        if (d.resize) {
+                            var l = d._def.label;
+                            l = (typeof l === "function" ? l.call(d) : l)||"";
+                            d.w = Math.max(node_width,calculateTextWidth(l)+(d._def.inputs>0?7:0) );
+                            d.h = Math.max(node_height,(d.outputs||0) * 15);
+                        }
+                        var thisNode = d3.select(this);
+                        //thisNode.selectAll(".centerDot").attr({"cx":function(d) { return d.w/2;},"cy":function(d){return d.h/2}});
+                        thisNode.attr("transform", function(d) { return "translate(" + (d.x-d.w/2) + "," + (d.y-d.h/2) + ")"; });
+                        thisNode.selectAll(".node")
+                            .attr("width",function(d){return d.w})
+                            .attr("height",function(d){return d.h})
+                            .classed("node_selected",function(d) { return d.selected; })
+                            .classed("node_highlighted",function(d) { return d.highlighted; })
+                        ;
+                        //thisNode.selectAll(".node-gradient-top").attr("width",function(d){return d.w});
+                        //thisNode.selectAll(".node-gradient-bottom").attr("width",function(d){return d.w}).attr("y",function(d){return d.h-30});
+
+                        thisNode.selectAll(".node_icon_group_right").attr('transform', function(d){return "translate("+(d.w-30)+",0)"});
+                        thisNode.selectAll(".node_label_right").attr('x', function(d){return d.w-38});
+                        //thisNode.selectAll(".node_icon_right").attr("x",function(d){return d.w-d3.select(this).attr("width")-1-(d.outputs>0?5:0);});
+                        //thisNode.selectAll(".node_icon_shade_right").attr("x",function(d){return d.w-30;});
+                        //thisNode.selectAll(".node_icon_shade_border_right").attr("d",function(d){return "M "+(d.w-30)+" 1 l 0 "+(d.h-2)});
+
+                        
+                        var numOutputs = d.outputs;
+                        var y = (d.h/2)-((numOutputs-1)/2)*13;
+                        d.ports = d.ports || d3.range(numOutputs);
+                        d._ports = thisNode.selectAll(".port_output").data(d.ports);
+                        d._ports.enter().append("rect").attr("class","port port_output").attr("rx",3).attr("ry",3).attr("width",10).attr("height",10)
+                            .on("mousedown",(function(){var node = d; return function(d,i){portMouseDown(node,0,i);}})() )
+                            .on("touchstart",(function(){var node = d; return function(d,i){portMouseDown(node,0,i);}})() )
+                            .on("mouseup",(function(){var node = d; return function(d,i){portMouseUp(node,0,i);}})() )
+                            .on("touchend",(function(){var node = d; return function(d,i){portMouseUp(node,0,i);}})() )
+                            .on("mouseover",function(d,i) { var port = d3.select(this); port.classed("port_hovered",(mouse_mode!=RED.state.JOINING || mousedown_port_type !== 0 ));})
+                            .on("mouseout",function(d,i) { var port = d3.select(this); port.classed("port_hovered",false);});
+                        d._ports.exit().remove();
+                        if (d._ports) {
+                            numOutputs = d.outputs || 1;
+                            y = (d.h/2)-((numOutputs-1)/2)*13;
+                            var x = d.w - 5;
+                            d._ports.each(function(d,i) {
+                                    var port = d3.select(this);
+                                    port.attr("y",(y+13*i)-5).attr("x",x);
+                            });
+                        }
+                        thisNode.selectAll('text.node_label').text(function(d,i){
+                                if (d._def.label) {
+                                    if (typeof d._def.label == "function") {
+                                        return d._def.label.call(d);
+                                    } else {
+                                        return d._def.label;
+                                    }
+                                }
+                                return "";
+                        })
+                            .attr('y', function(d){return (d.h/2)-1;})
+                            .attr('class',function(d){
+                                return 'node_label'+
+                                (d._def.align?' node_label_'+d._def.align:'')+
+                                (d._def.labelStyle?' '+(typeof d._def.labelStyle == "function" ? d._def.labelStyle.call(d):d._def.labelStyle):'') ;
+                        });
+                        thisNode.selectAll(".node_tools").attr("x",function(d){return d.w-35;}).attr("y",function(d){return d.h-20;});
+
+                        thisNode.selectAll(".node_changed")
+                            .attr("x",function(d){return d.w-10})
+                            .classed("hidden",function(d) { return !d.changed; });
+
+                        thisNode.selectAll(".node_error")
+                            .attr("x",function(d){return d.w-10-(d.changed?13:0)})
+                            .classed("hidden",function(d) { return d.valid; });
+
+                        thisNode.selectAll(".port_input").each(function(d,i) {
+                                var port = d3.select(this);
+                                port.attr("y",function(d){return (d.h/2)-5;})
+                        });
+
+                        thisNode.selectAll(".node_icon").attr("y",function(d){return (d.h-d3.select(this).attr("height"))/2;});
+                        thisNode.selectAll(".node_icon_shade").attr("height",function(d){return d.h;});
+                        thisNode.selectAll(".node_icon_shade_border").attr("d",function(d){ return "M "+(("right" == d._def.align) ?0:30)+" 1 l 0 "+(d.h-2)});
+
+                        
+                        thisNode.selectAll('.node_right_button').attr("transform",function(d){
+                                var x = d.w-6;
+                                if (d._def.button.toggle && !d[d._def.button.toggle]) {
+                                    x = x - 8;
+                                }
+                                return "translate("+x+",2)";
+                        });
+                        thisNode.selectAll('.node_right_button rect').attr("fill-opacity",function(d){
+                                if (d._def.button.toggle) {
+                                    return d[d._def.button.toggle]?1:0.2;
+                                }
+                                return 1;
+                        });
+
+                        //thisNode.selectAll('.node_right_button').attr("transform",function(d){return "translate("+(d.w - d._def.button.width.call(d))+","+0+")";}).attr("fill",function(d) {
+                        //         return typeof d._def.button.color  === "function" ? d._def.button.color.call(d):(d._def.button.color != null ? d._def.button.color : d._def.color)
+                        //});
+
+                        thisNode.selectAll('.node_badge_group').attr("transform",function(d){return "translate("+(d.w-40)+","+(d.h+3)+")";});
+                        thisNode.selectAll('text.node_badge_label').text(function(d,i) {
+                            if (d._def.badge) {
+                                if (typeof d._def.badge == "function") {
+                                    return d._def.badge.call(d);
+                                } else {
+                                    return d._def.badge;
+                                }
+                            }
+                            return "";
+                        });
+                        if (!showStatus || !d.status) {
+                            thisNode.selectAll('.node_status_group').style("display","none");
+                        } else {
+                            thisNode.selectAll('.node_status_group').style("display","inline").attr("transform","translate(3,"+(d.h+3)+")");
+                            var fill = status_colours[d.status.fill]; // Only allow our colours for now
+                            if (d.status.shape == null && fill == null) {
+                                thisNode.selectAll('.node_status').style("display","none");
+                            } else {
+                                var style;
+                                if (d.status.shape == null || d.status.shape == "dot") {
+                                    style = {
+                                        display: "inline",
+                                        fill: fill,
+                                        stroke: fill
+                                    };
+                                } else if (d.status.shape == "ring" ){
+                                    style = {
+                                        display: "inline",
+                                        fill: '#fff',
+                                        stroke: fill
+                                    }
+                                }
+                                thisNode.selectAll('.node_status').style(style);
+                            }
+                            if (d.status.text) {
+                                thisNode.selectAll('.node_status_label').text(d.status.text);
+                            } else {
+                                thisNode.selectAll('.node_status_label').text("");
+                            }
+                        }
+
+                        d.dirty = false;
+                    }
+            });
+        }
+
+        var link = vis.selectAll(".link").data(RED.nodes.links.filter(function(d) { return d.source.z == activeWorkspace && d.target.z == activeWorkspace }),function(d) { return d.source.id+":"+d.sourcePort+":"+d.target.id;});
+
+        var linkEnter = link.enter().insert("g",".node").attr("class","link");
+        
+        linkEnter.each(function(d,i) {
+            var l = d3.select(this);
+            l.append("svg:path").attr("class","link_background link_path")
+               .on("mousedown",function(d) {
+                    mousedown_link = d;
+                    clearSelection();
+                    selected_link = mousedown_link;
+                    updateSelection();
+                    redraw();
+                    d3.event.stopPropagation();
+                })
+                .on("touchstart",function(d) {
+                    mousedown_link = d;
+                    clearSelection();
+                    selected_link = mousedown_link;
+                    updateSelection();
+                    redraw();
+                    d3.event.stopPropagation();
+                });
+            l.append("svg:path").attr("class","link_outline link_path");
+            l.append("svg:path").attr("class","link_line link_path");
+        });
+
+        link.exit().remove();
+
+        var links = vis.selectAll(".link_path")
+        links.attr("d",function(d){
+                var numOutputs = d.source.outputs || 1;
+                var sourcePort = d.sourcePort || 0;
+                var y = -((numOutputs-1)/2)*13 +13*sourcePort;
+
+                var dy = d.target.y-(d.source.y+y);
+                var dx = (d.target.x-d.target.w/2)-(d.source.x+d.source.w/2);
+                var delta = Math.sqrt(dy*dy+dx*dx);
+                var scale = lineCurveScale;
+                var scaleY = 0;
+                if (delta < node_width) {
+                    scale = 0.75-0.75*((node_width-delta)/node_width);
+                }
+
+                if (dx < 0) {
+                    scale += 2*(Math.min(5*node_width,Math.abs(dx))/(5*node_width));
+                    if (Math.abs(dy) < 3*node_height) {
+                        scaleY = ((dy>0)?0.5:-0.5)*(((3*node_height)-Math.abs(dy))/(3*node_height))*(Math.min(node_width,Math.abs(dx))/(node_width)) ;
+                    }
+                }
+
+                d.x1 = d.source.x+d.source.w/2;
+                d.y1 = d.source.y+y;
+                d.x2 = d.target.x-d.target.w/2;
+                d.y2 = d.target.y;
+
+                return "M "+(d.source.x+d.source.w/2)+" "+(d.source.y+y)+
+                    " C "+(d.source.x+d.source.w/2+scale*node_width)+" "+(d.source.y+y+scaleY*node_height)+" "+
+                    (d.target.x-d.target.w/2-scale*node_width)+" "+(d.target.y-scaleY*node_height)+" "+
+                    (d.target.x-d.target.w/2)+" "+d.target.y;
+        })
+
+        link.classed("link_selected", function(d) { return d === selected_link || d.selected; });
+        link.classed("link_unknown",function(d) { return d.target.type == "unknown" || d.source.type == "unknown"});
+
+        if (d3.event) {
+            d3.event.preventDefault();
+        }
+    }
+
+    RED.keyboard.add(/* z */ 90,{ctrl:true},function(){RED.history.pop();});
+    RED.keyboard.add(/* a */ 65,{ctrl:true},function(){selectAll();d3.event.preventDefault();});
+    RED.keyboard.add(/* = */ 187,{ctrl:true},function(){zoomIn();d3.event.preventDefault();});
+    RED.keyboard.add(/* - */ 189,{ctrl:true},function(){zoomOut();d3.event.preventDefault();});
+    RED.keyboard.add(/* 0 */ 48,{ctrl:true},function(){zoomZero();d3.event.preventDefault();});
+    RED.keyboard.add(/* v */ 86,{ctrl:true},function(){importNodes(clipboard);d3.event.preventDefault();});
+    RED.keyboard.add(/* e */ 69,{ctrl:true},function(){showExportNodesDialog();d3.event.preventDefault();});
+    RED.keyboard.add(/* i */ 73,{ctrl:true},function(){showImportNodesDialog();d3.event.preventDefault();});
+
+    // TODO: 'dirty' should be a property of RED.nodes - with an event callback for ui hooks
+    function setDirty(d) {
+        dirty = d;
+        if (dirty) {
+            $("#btn-deploy").removeClass("disabled");
+        } else {
+            $("#btn-deploy").addClass("disabled");
+        }
+    }
+
+    /**
+     * Imports a new collection of nodes from a JSON String.
+     *  - all get new IDs assigned
+     *  - all 'selected'
+     *  - attached to mouse for placing - 'IMPORT_DRAGGING'
+     */
+    function importNodes(newNodesStr,touchImport) {
+        try {
+            var result = RED.nodes.import(newNodesStr,true);
+            if (result) {
+                var new_nodes = result[0];
+                var new_links = result[1];
+                var new_workspaces = result[2];
+                
+                var new_ms = new_nodes.filter(function(n) { return n.z == activeWorkspace }).map(function(n) { return {n:n};});
+                var new_node_ids = new_nodes.map(function(n){ return n.id; });
+                
+                // TODO: pick a more sensible root node
+                if (new_ms.length > 0) {
+                    var root_node = new_ms[0].n;
+                    var dx = root_node.x;
+                    var dy = root_node.y;
+    
+                    if (mouse_position == null) {
+                        mouse_position = [0,0];
+                    }
+    
+                    var minX = 0;
+                    var minY = 0;
+                    var i;
+                    var node;
+                    
+                    for (i=0;i<new_ms.length;i++) {
+                        node = new_ms[i];
+                        node.n.selected = true;
+                        node.n.changed = true;
+                        node.n.x -= dx - mouse_position[0];
+                        node.n.y -= dy - mouse_position[1];
+                        node.dx = node.n.x - mouse_position[0];
+                        node.dy = node.n.y - mouse_position[1];
+                        minX = Math.min(node.n.x-node_width/2-5,minX);
+                        minY = Math.min(node.n.y-node_height/2-5,minY);
+                    }
+                    for (i=0;i<new_ms.length;i++) {
+                        node = new_ms[i];
+                        node.n.x -= minX;
+                        node.n.y -= minY;
+                        node.dx -= minX;
+                        node.dy -= minY;
+                    }
+                    if (!touchImport) {
+                        mouse_mode = RED.state.IMPORT_DRAGGING;
+                    }
+    
+                    RED.keyboard.add(/* ESCAPE */ 27,function(){
+                            RED.keyboard.remove(/* ESCAPE */ 27);
+                            clearSelection();
+                            RED.history.pop();
+                            mouse_mode = 0;
+                    });
+                    clearSelection();
+                    moving_set = new_ms;
+                }
+
+                RED.history.push({t:'add',nodes:new_node_ids,links:new_links,workspaces:new_workspaces,dirty:RED.view.dirty()});
+
+
+                redraw();
+            }
+        } catch(error) {
+            console.log(error.stack);
+            RED.notify("<strong>Error</strong>: "+error,"error");
+        }
+    }
+
+    function showExportNodesDialog() {
+        mouse_mode = RED.state.EXPORT;
+        var nns = RED.nodes.createExportableNodeSet(moving_set);
+        $("#dialog-form").html($("script[data-template-name='export-clipboard-dialog']").html());
+        $("#node-input-export").val(JSON.stringify(nns));
+        $("#node-input-export").focus(function() {
+                var textarea = $(this);
+                textarea.select();
+                textarea.mouseup(function() {
+                        textarea.unbind("mouseup");
+                        return false;
+                });
+        });
+        $( "#dialog" ).dialog("option","title","Export nodes to clipboard").dialog( "open" );
+        $("#node-input-export").focus();
+    }
+
+    function showExportNodesLibraryDialog() {
+        mouse_mode = RED.state.EXPORT;
+        var nns = RED.nodes.createExportableNodeSet(moving_set);
+        $("#dialog-form").html($("script[data-template-name='export-library-dialog']").html());
+        $("#node-input-filename").attr('nodes',JSON.stringify(nns));
+        $( "#dialog" ).dialog("option","title","Export nodes to library").dialog( "open" );
+    }
+
+    function showImportNodesDialog() {
+        mouse_mode = RED.state.IMPORT;
+        $("#dialog-form").html($("script[data-template-name='import-dialog']").html());
+        $("#node-input-import").val("");
+        $( "#dialog" ).dialog("option","title","Import nodes").dialog( "open" );
+    }
+
+    function showRenameWorkspaceDialog(id) {
+        var ws = RED.nodes.workspace(id);
+        $( "#node-dialog-rename-workspace" ).dialog("option","workspace",ws);
+
+        if (workspace_tabs.count() == 1) {
+            $( "#node-dialog-rename-workspace").next().find(".leftButton")
+                .prop('disabled',true)
+                .addClass("ui-state-disabled");
+        } else {
+            $( "#node-dialog-rename-workspace").next().find(".leftButton")
+                .prop('disabled',false)
+                .removeClass("ui-state-disabled");
+        }
+
+        $( "#node-input-workspace-name" ).val(ws.label);
+        $( "#node-dialog-rename-workspace" ).dialog("open");
+    }
+
+    $("#node-dialog-rename-workspace form" ).submit(function(e) { e.preventDefault();});
+    $( "#node-dialog-rename-workspace" ).dialog({
+        modal: true,
+        autoOpen: false,
+        width: 500,
+        title: "Rename sheet",
+        buttons: [
+            {
+                class: 'leftButton',
+                text: "Delete",
+                click: function() {
+                    var workspace = $(this).dialog('option','workspace');
+                    $( this ).dialog( "close" );
+                    deleteWorkspace(workspace.id);
+                }
+            },
+            {
+                text: "Ok",
+                click: function() {
+                    var workspace = $(this).dialog('option','workspace');
+                    var label = $( "#node-input-workspace-name" ).val();
+                    if (workspace.label != label) {
+                        workspace.label = label;
+                        var link = $("#workspace-tabs a[href='#"+workspace.id+"']");
+                        link.attr("title",label);
+                        link.text(label);
+                        RED.view.dirty(true);
+                    }
+                    $( this ).dialog( "close" );
+                }
+            },
+            {
+                text: "Cancel",
+                click: function() {
+                    $( this ).dialog( "close" );
+                }
+            }
+        ],
+        open: function(e) {
+            RED.keyboard.disable();
+        },
+        close: function(e) {
+            RED.keyboard.enable();
+        }
+    });
+    $( "#node-dialog-delete-workspace" ).dialog({
+        modal: true,
+        autoOpen: false,
+        width: 500,
+        title: "Confirm delete",
+        buttons: [
+            {
+                text: "Ok",
+                click: function() {
+                    var workspace = $(this).dialog('option','workspace');
+                    RED.view.removeWorkspace(workspace);
+                    var historyEvent = RED.nodes.removeWorkspace(workspace.id);
+                    historyEvent.t = 'delete';
+                    historyEvent.dirty = dirty;
+                    historyEvent.workspaces = [workspace];
+                    RED.history.push(historyEvent);
+                    RED.view.dirty(true);
+                    $( this ).dialog( "close" );
+                }
+            },
+            {
+                text: "Cancel",
+                click: function() {
+                    $( this ).dialog( "close" );
+                }
+            }
+        ],
+        open: function(e) {
+            RED.keyboard.disable();
+        },
+        close: function(e) {
+            RED.keyboard.enable();
+        }
+
+    });
+
+    return {
+        state:function(state) {
+            if (state == null) {
+                return mouse_mode
+            } else {
+                mouse_mode = state;
+            }
+        },
+        addWorkspace: function(ws) {
+            workspace_tabs.addTab(ws);
+            workspace_tabs.resize();
+        },
+        removeWorkspace: function(ws) {
+            workspace_tabs.removeTab(ws.id);
+        },
+        getWorkspace: function() {
+            return activeWorkspace;
+        },
+        showWorkspace: function(id) {
+            workspace_tabs.activateTab(id);
+        },
+        redraw:redraw,
+        dirty: function(d) {
+            if (d == null) {
+                return dirty;
+            } else {
+                setDirty(d);
+            }
+        },
+        importNodes: importNodes,
+        resize: function() {
+            workspace_tabs.resize();
+        },
+        status: function(s) {
+            showStatus = s;
+            RED.nodes.eachNode(function(n) { n.dirty = true;});
+            //TODO: subscribe/unsubscribe here
+            redraw();
+        },
+        
+        //TODO: should these move to an import/export module?
+        showImportNodesDialog: showImportNodesDialog,
+        showExportNodesDialog: showExportNodesDialog,
+        showExportNodesLibraryDialog: showExportNodesLibraryDialog
+    };
+})();