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node-red/editor/js/ui/view.js

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/**
* Copyright 2013, 2016 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 workspaceScrollPositions = {};
var gridSize = 20;
var snapGrid = false;
var activeSpliceLink;
var spliceActive = false;
var spliceTimer;
var activeSubflow = null;
var activeNodes = [];
var activeLinks = [];
var activeFlowLinks = [];
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 = [],
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")
.on("mousedown", function() {
focusView();
});
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,space_width]).domain([0,space_width]);
var grid = vis.append("g");
grid.selectAll("line.horizontal").data(gridScale.ticks(space_width/gridSize)).enter()
.append("line")
.attr(
{
"class":"horizontal",
"x1" : 0,
"x2" : space_width,
"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(space_width/gridSize)).enter()
.append("line")
.attr(
{
"class":"vertical",
"y1" : 0,
"y2" : space_width,
"x1" : function(d){ return gridScale(d);},
"x2" : function(d){ return gridScale(d);},
"fill" : "none",
"shape-rendering" : "crispEdges",
"stroke" : "#eee",
"stroke-width" : "1px"
});
grid.style("visibility","hidden");
var dragGroup = vis.append("g");
var drag_lines = [];
function showDragLines(nodes) {
for (var i=0;i<nodes.length;i++) {
var node = nodes[i];
node.el = dragGroup.append("svg:path").attr("class", "drag_line");
drag_lines.push(node);
}
}
function hideDragLines() {
while(drag_lines.length) {
var line = drag_lines.pop();
if (line.el) {
line.el.remove();
}
}
}
function updateActiveNodes() {
var activeWorkspace = RED.workspaces.active();
activeNodes = RED.nodes.filterNodes({z:activeWorkspace});
activeLinks = RED.nodes.filterLinks({
source:{z:activeWorkspace},
target:{z:activeWorkspace}
});
}
function init() {
RED.events.on("workspace:change",function(event) {
var chart = $("#chart");
if (event.old !== 0) {
workspaceScrollPositions[event.old] = {
left:chart.scrollLeft(),
top:chart.scrollTop()
};
}
var scrollStartLeft = chart.scrollLeft();
var scrollStartTop = chart.scrollTop();
activeSubflow = RED.nodes.subflow(event.workspace);
RED.menu.setDisabled("menu-item-workspace-edit", activeSubflow);
RED.menu.setDisabled("menu-item-workspace-delete",RED.workspaces.count() == 1 || activeSubflow);
if (workspaceScrollPositions[event.workspace]) {
chart.scrollLeft(workspaceScrollPositions[event.workspace].left);
chart.scrollTop(workspaceScrollPositions[event.workspace].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;
});
updateSelection();
updateActiveNodes();
redraw();
});
$("#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(); }
}
});
// Handle nodes dragged from the palette
$("#chart").droppable({
accept:".palette_node",
drop: function( event, ui ) {
d3.event = event;
var selected_tool = ui.draggable[0].type;
var result = addNode(selected_tool);
if (!result) {
return;
}
var historyEvent = result.historyEvent;
var nn = result.node;
var helperOffset = d3.touches(ui.helper.get(0))[0]||d3.mouse(ui.helper.get(0));
var mousePos = d3.touches(this)[0]||d3.mouse(this);
mousePos[1] += this.scrollTop + ((nn.h/2)-helperOffset[1]);
mousePos[0] += this.scrollLeft + ((nn.w/2)-helperOffset[0]);
mousePos[1] /= scaleFactor;
mousePos[0] /= scaleFactor;
if (snapGrid) {
mousePos[0] = gridSize*(Math.ceil(mousePos[0]/gridSize));
mousePos[1] = gridSize*(Math.ceil(mousePos[1]/gridSize));
}
nn.x = mousePos[0];
nn.y = mousePos[1];
var spliceLink = $(ui.helper).data("splice");
if (spliceLink) {
// TODO: DRY - droppable/nodeMouseDown/canvasMouseUp
RED.nodes.removeLink(spliceLink);
var link1 = {
source:spliceLink.source,
sourcePort:spliceLink.sourcePort,
target: nn
};
var link2 = {
source:nn,
sourcePort:0,
target: spliceLink.target
};
RED.nodes.addLink(link1);
RED.nodes.addLink(link2);
historyEvent.links = [link1,link2];
historyEvent.removedLinks = [spliceLink];
}
RED.history.push(historyEvent);
RED.nodes.add(nn);
RED.editor.validateNode(nn);
RED.nodes.dirty(true);
// auto select dropped node - so info shows (if visible)
clearSelection();
nn.selected = true;
moving_set.push({n:nn});
updateActiveNodes();
updateSelection();
redraw();
if (nn._def.autoedit) {
RED.editor.edit(nn);
}
}
});
RED.actions.add("core:copy",copySelection);
RED.actions.add("core:cut",function(){copySelection();deleteSelection();});
RED.actions.add("core:paste",function(){importNodes(clipboard);});
RED.actions.add("core:delete",deleteSelection);
RED.actions.add("core:edit",editSelection);
RED.actions.add("core:undo",RED.history.pop);
RED.actions.add("core:select-all",selectAll);
RED.actions.add("core:zoom-in",zoomIn);
RED.actions.add("core:zoom-out",zoomOut);
RED.actions.add("core:zoom-reset",zoomZero);
RED.actions.add("core:toggle-show-grid",function(state) {
if (state === undefined) {
RED.menu.toggleSelected("menu-item-view-show-grid");
} else {
toggleShowGrid(state);
}
});
RED.actions.add("core:toggle-snap-grid",function(state) {
if (state === undefined) {
RED.menu.toggleSelected("menu-item-view-snap-grid");
} else {
toggleSnapGrid(state);
}
});
RED.actions.add("core:toggle-status",function(state) {
if (state === undefined) {
RED.menu.toggleSelected("menu-item-status");
} else {
toggleStatus(state);
}
});
RED.actions.add("core:move-selection-up", function() { moveSelection(0,-1);});
RED.actions.add("core:step-selection-up", function() { moveSelection(0,-20);});
RED.actions.add("core:move-selection-right", function() { moveSelection(1,0);});
RED.actions.add("core:step-selection-right", function() { moveSelection(20,0);});
RED.actions.add("core:move-selection-down", function() { moveSelection(0,1);});
RED.actions.add("core:step-selection-down", function() { moveSelection(0,20);});
RED.actions.add("core:move-selection-left", function() { moveSelection(-1,0);});
RED.actions.add("core:step-selection-left", function() { moveSelection(-20,0);});
}
function addNode(type,x,y) {
var m = /^subflow:(.+)$/.exec(type);
if (activeSubflow && m) {
var subflowId = m[1];
if (subflowId === activeSubflow.id) {
RED.notify(RED._("notification.error",{message: RED._("notification.errors.cannotAddSubflowToItself")}),"error");
return;
}
if (RED.nodes.subflowContains(m[1],activeSubflow.id)) {
RED.notify(RED._("notification.error",{message: RED._("notification.errors.cannotAddCircularReference")}),"error");
return;
}
}
var nn = { id:RED.nodes.id(),z:RED.workspaces.active()};
nn.type = type;
nn._def = RED.nodes.getType(nn.type);
if (!m) {
nn.inputs = nn._def.inputs || 0;
nn.outputs = nn._def.outputs;
for (var d in nn._def.defaults) {
if (nn._def.defaults.hasOwnProperty(d)) {
if (nn._def.defaults[d].value !== undefined) {
nn[d] = JSON.parse(JSON.stringify(nn._def.defaults[d].value));
}
}
}
if (nn._def.onadd) {
try {
nn._def.onadd.call(nn);
} catch(err) {
console.log("onadd:",err);
}
}
} else {
var subflow = RED.nodes.subflow(m[1]);
nn.inputs = subflow.in.length;
nn.outputs = subflow.out.length;
}
nn.changed = true;
nn.w = node_width;
nn.h = Math.max(node_height,(nn.outputs||0) * 15);
var historyEvent = {
t:"add",
nodes:[nn.id],
dirty:RED.nodes.dirty()
}
if (activeSubflow) {
var subflowRefresh = RED.subflow.refresh(true);
if (subflowRefresh) {
historyEvent.subflow = {
id:activeSubflow.id,
changed: activeSubflow.changed,
instances: subflowRefresh.instances
}
}
}
return {
node: nn,
historyEvent: historyEvent
}
}
function canvasMouseDown() {
var point;
if (!mousedown_node && !mousedown_link) {
selected_link = null;
updateSelection();
}
if (mouse_mode === 0) {
if (lasso) {
lasso.remove();
lasso = null;
}
}
if (mouse_mode === 0 || mouse_mode === RED.state.QUICK_JOINING) {
if (d3.event.metaKey || d3.event.ctrlKey) {
point = d3.mouse(this);
d3.event.stopPropagation();
var mainPos = $("#main-container").position();
if (mouse_mode !== RED.state.QUICK_JOINING) {
mouse_mode = RED.state.QUICK_JOINING;
$(window).on('keyup',disableQuickJoinEventHandler);
}
RED.typeSearch.show({
x:d3.event.clientX-mainPos.left-node_width/2,
y:d3.event.clientY-mainPos.top-node_height/2,
add: function(type) {
var result = addNode(type);
if (!result) {
return;
}
var nn = result.node;
var historyEvent = result.historyEvent;
nn.x = point[0];
nn.y = point[1];
if (mouse_mode === RED.state.QUICK_JOINING) {
if (drag_lines.length > 0) {
var drag_line = drag_lines[0];
var src = null,dst,src_port;
if (drag_line.portType === 0 && nn.inputs > 0) {
src = drag_line.node;
src_port = drag_line.port;
dst = nn;
} else if (drag_line.portType === 1 && nn.outputs > 0) {
src = nn;
dst = drag_line.node;
src_port = 0;
}
if (src !== null) {
var link = {source: src, sourcePort:src_port, target: dst};
RED.nodes.addLink(link);
historyEvent.links = [link];
hideDragLines();
if (drag_line.portType === 0 && nn.outputs > 0) {
showDragLines([{node:nn,port:0,portType:0}]);
} else if (drag_line.portType === 1 && nn.inputs > 0) {
showDragLines([{node:nn,port:0,portType:1}]);
} else {
resetMouseVars();
}
} else {
hideDragLines();
resetMouseVars();
}
} else {
if (nn.outputs > 0) {
showDragLines([{node:nn,port:0,portType:0}]);
} else if (nn.inputs > 0) {
showDragLines([{node:nn,port:0,portType:1}]);
} else {
resetMouseVars();
}
}
}
RED.history.push(historyEvent);
RED.nodes.add(nn);
RED.editor.validateNode(nn);
RED.nodes.dirty(true);
// auto select dropped node - so info shows (if visible)
clearSelection();
nn.selected = true;
moving_set.push({n:nn});
updateActiveNodes();
updateSelection();
redraw();
}
});
updateActiveNodes();
updateSelection();
redraw();
}
}
if (mouse_mode === 0 && !(d3.event.metaKey || d3.event.ctrlKey)) {
if (!touchStartTime) {
point = d3.mouse(this);
lasso = vis.append("rect")
.attr("ox",point[0])
.attr("oy",point[1])
.attr("rx",1)
.attr("ry",1)
.attr("x",point[0])
.attr("y",point[1])
.attr("width",0)
.attr("height",0)
.attr("class","lasso");
d3.event.preventDefault();
}
}
}
function canvasMouseMove() {
var i;
var node;
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.QUICK_JOINING && mouse_mode != RED.state.IMPORT_DRAGGING && !mousedown_node && selected_link == null) {
return;
}
var mousePos;
if (mouse_mode == RED.state.JOINING || mouse_mode === RED.state.QUICK_JOINING) {
// update drag line
if (drag_lines.length === 0) {
if (d3.event.shiftKey) {
// Get all the wires we need to detach.
var links = [];
var existingLinks = [];
if (selected_link &&
((mousedown_port_type === 0 &&
selected_link.source === mousedown_node &&
selected_link.sourcePort === mousedown_port_index
) ||
(mousedown_port_type === 1 &&
selected_link.target === mousedown_node
))
) {
existingLinks = [selected_link];
} else {
var filter;
if (mousedown_port_type === 0) {
filter = {
source:mousedown_node,
sourcePort: mousedown_port_index
}
} else {
filter = {
target: mousedown_node
}
}
existingLinks = RED.nodes.filterLinks(filter);
}
for (i=0;i<existingLinks.length;i++) {
var link = existingLinks[i];
RED.nodes.removeLink(link);
links.push({
link:link,
node: (mousedown_port_type===0)?link.target:link.source,
port: (mousedown_port_type===0)?0:link.sourcePort,
portType: (mousedown_port_type===0)?1:0
})
}
if (links.length === 0) {
resetMouseVars();
redraw();
} else {
showDragLines(links);
mouse_mode = 0;
updateActiveNodes();
redraw();
mouse_mode = RED.state.JOINING;
}
} else if (mousedown_node) {
showDragLines([{node:mousedown_node,port:mousedown_port_index,portType:mousedown_port_type}]);
}
selected_link = null;
}
mousePos = mouse_position;
for (i=0;i<drag_lines.length;i++) {
var drag_line = drag_lines[i];
var numOutputs = (drag_line.portType === 0)?(drag_line.node.outputs || 1):1;
var sourcePort = drag_line.port;
var portY = -((numOutputs-1)/2)*13 +13*sourcePort;
var sc = (drag_line.portType === 0)?1:-1;
var dy = mousePos[1]-(drag_line.node.y+portY);
var dx = mousePos[0]-(drag_line.node.x+sc*drag_line.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.el.attr("d",
"M "+(drag_line.node.x+sc*drag_line.node.w/2)+" "+(drag_line.node.y+portY)+
" C "+(drag_line.node.x+sc*(drag_line.node.w/2+node_width*scale))+" "+(drag_line.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 = d3.mouse(document.body);
if (isNaN(mousePos[0])) {
mousePos = d3.touches(document.body)[0];
}
var d = (mouse_offset[0]-mousePos[0])*(mouse_offset[0]-mousePos[0]) + (mouse_offset[1]-mousePos[1])*(mouse_offset[1]-mousePos[1]);
if (d > 3) {
mouse_mode = RED.state.MOVING_ACTIVE;
clickElapsed = 0;
spliceActive = false;
if (moving_set.length === 1) {
node = moving_set[0];
spliceActive = node.n.hasOwnProperty("_def") &&
node.n._def.inputs > 0 &&
node.n._def.outputs > 0 &&
RED.nodes.filterLinks({ source: node.n }).length === 0 &&
RED.nodes.filterLinks({ target: node.n }).length === 0;
}
}
} else if (mouse_mode == RED.state.MOVING_ACTIVE || mouse_mode == RED.state.IMPORT_DRAGGING) {
mousePos = mouse_position;
var minX = 0;
var minY = 0;
var maxX = space_width;
var maxY = space_height;
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);
maxX = Math.max(node.n.x+node.n.w/2+5,maxX);
maxY = Math.max(node.n.y+node.n.h/2+5,maxY);
}
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 (maxX !== space_width || maxY !== space_height) {
for (i = 0; i<moving_set.length; i++) {
node = moving_set[i];
node.n.x -= (maxX - space_width);
node.n.y -= (maxY - space_height);
}
}
if (snapGrid != d3.event.shiftKey && moving_set.length > 0) {
var gridOffset = [0,0];
node = moving_set[0];
gridOffset[0] = node.n.x-(gridSize*Math.floor((node.n.x-node.n.w/2)/gridSize)+node.n.w/2);
gridOffset[1] = node.n.y-(gridSize*Math.floor(node.n.y/gridSize));
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;
}
}
}
}
if ((mouse_mode == RED.state.MOVING_ACTIVE || mouse_mode == RED.state.IMPORT_DRAGGING) && moving_set.length === 1) {
node = moving_set[0];
if (spliceActive) {
if (!spliceTimer) {
spliceTimer = setTimeout(function() {
var nodes = [];
var bestDistance = Infinity;
var bestLink = null;
var mouseX = node.n.x;
var mouseY = node.n.y;
if (outer[0][0].getIntersectionList) {
var svgRect = outer[0][0].createSVGRect();
svgRect.x = mouseX;
svgRect.y = mouseY;
svgRect.width = 1;
svgRect.height = 1;
nodes = outer[0][0].getIntersectionList(svgRect, outer[0][0]);
} else {
// Firefox doesn"t do getIntersectionList and that
// makes us sad
nodes = RED.view.getLinksAtPoint(mouseX,mouseY);
}
for (var i=0;i<nodes.length;i++) {
if (d3.select(nodes[i]).classed("link_background")) {
var length = nodes[i].getTotalLength();
for (var j=0;j<length;j+=10) {
var p = nodes[i].getPointAtLength(j);
var d2 = ((p.x-mouseX)*(p.x-mouseX))+((p.y-mouseY)*(p.y-mouseY));
if (d2 < 200 && d2 < bestDistance) {
bestDistance = d2;
bestLink = nodes[i];
}
}
}
}
if (activeSpliceLink && activeSpliceLink !== bestLink) {
d3.select(activeSpliceLink.parentNode).classed("link_splice",false);
}
if (bestLink) {
d3.select(bestLink.parentNode).classed("link_splice",true)
} else {
d3.select(".link_splice").classed("link_splice",false);
}
activeSpliceLink = bestLink;
spliceTimer = null;
},100);
}
}
}
}
if (mouse_mode !== 0) {
redraw();
}
}
function canvasMouseUp() {
var i;
var historyEvent;
if (mouse_mode === RED.state.QUICK_JOINING) {
return;
}
if (mousedown_node && mouse_mode == RED.state.JOINING) {
var removedLinks = [];
for (i=0;i<drag_lines.length;i++) {
if (drag_lines[i].link) {
removedLinks.push(drag_lines[i].link)
}
}
historyEvent = {
t:"delete",
links: removedLinks,
dirty:RED.nodes.dirty()
};
RED.history.push(historyEvent);
hideDragLines();
}
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 == RED.workspaces.active() && !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});
}
}
});
if (activeSubflow) {
activeSubflow.in.forEach(function(n) {
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});
}
});
activeSubflow.out.forEach(function(n) {
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&& !d3.event.metaKey ) {
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,changed:moving_set[j].n.changed});
moving_set[j].n.dirty = true;
moving_set[j].n.changed = true;
}
historyEvent = {t:"move",nodes:ns,dirty:RED.nodes.dirty()};
if (activeSpliceLink) {
// TODO: DRY - droppable/nodeMouseDown/canvasMouseUp
var spliceLink = d3.select(activeSpliceLink).data()[0];
RED.nodes.removeLink(spliceLink);
var link1 = {
source:spliceLink.source,
sourcePort:spliceLink.sourcePort,
target: moving_set[0].n
};
var link2 = {
source:moving_set[0].n,
sourcePort:0,
target: spliceLink.target
};
RED.nodes.addLink(link1);
RED.nodes.addLink(link2);
historyEvent.links = [link1,link2];
historyEvent.removedLinks = [spliceLink];
updateActiveNodes();
}
RED.nodes.dirty(true);
RED.history.push(historyEvent);
}
}
if (mouse_mode == RED.state.MOVING || mouse_mode == RED.state.MOVING_ACTIVE) {
for (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");
updateActiveNodes();
RED.nodes.dirty(true);
}
resetMouseVars();
redraw();
}
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 == RED.workspaces.active()) {
if (!n.selected) {
n.selected = true;
n.dirty = true;
moving_set.push({n:n});
}
}
});
if (activeSubflow) {
activeSubflow.in.forEach(function(n) {
if (!n.selected) {
n.selected = true;
n.dirty = true;
moving_set.push({n:n});
}
});
activeSubflow.out.forEach(function(n) {
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() {
var selection = {};
if (moving_set.length > 0) {
selection.nodes = moving_set.map(function(n) { return n.n;});
}
if (selected_link != null) {
selection.link = selected_link;
}
var activeWorkspace = RED.workspaces.active();
activeLinks = RED.nodes.filterLinks({
source:{z:activeWorkspace},
target:{z:activeWorkspace}
});
var tabOrder = RED.nodes.getWorkspaceOrder();
var currentLinks = activeLinks;
var addedLinkLinks = {};
activeFlowLinks = [];
for (var i=0;i<moving_set.length;i++) {
if (moving_set[i].n.type === "link out" || moving_set[i].n.type === "link in") {
var linkNode = moving_set[i].n;
var offFlowLinks = {};
linkNode.links.forEach(function(id) {
var target = RED.nodes.node(id);
if (target) {
if (linkNode.type === "link out") {
if (target.z === linkNode.z) {
if (!addedLinkLinks[linkNode.id+":"+target.id]) {
activeLinks.push({
source:linkNode,
sourcePort:0,
target: target,
link: true
});
addedLinkLinks[linkNode.id+":"+target.id] = true;
}
} else {
offFlowLinks[target.z] = offFlowLinks[target.z]||[];
offFlowLinks[target.z].push(target);
}
} else {
if (target.z === linkNode.z) {
if (!addedLinkLinks[target.id+":"+linkNode.id]) {
activeLinks.push({
source:target,
sourcePort:0,
target: linkNode,
link: true
});
addedLinkLinks[target.id+":"+linkNode.id] = true;
}
} else {
offFlowLinks[target.z] = offFlowLinks[target.z]||[];
offFlowLinks[target.z].push(target);
}
}
}
});
var offFlows = Object.keys(offFlowLinks);
// offFlows.sort(function(A,B) {
// return tabOrder.indexOf(A) - tabOrder.indexOf(B);
// });
if (offFlows.length > 0) {
activeFlowLinks.push({
refresh: Math.floor(Math.random()*10000),
node: linkNode,
links: offFlowLinks//offFlows.map(function(i) { return {id:i,links:offFlowLinks[i]};})
});
}
}
}
RED.events.emit("view:selection-changed",selection);
}
function endKeyboardMove() {
endMoveSet = false;
if (moving_set.length > 0) {
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,changed:moving_set[i].n.changed});
moving_set[i].n.changed = true;
moving_set[i].n.dirty = true;
delete moving_set[i].ox;
delete moving_set[i].oy;
}
redraw();
RED.history.push({t:"move",nodes:ns,dirty:RED.nodes.dirty()});
RED.nodes.dirty(true);
}
}
var endMoveSet = false;
function moveSelection(dx,dy) {
if (moving_set.length > 0) {
if (!endMoveSet) {
$(document).one('keyup',endKeyboardMove);
endMoveSet = true;
}
var minX = 0;
var minY = 0;
var node;
for (var i=0;i<moving_set.length;i++) {
node = moving_set[i];
node.n.changed = true;
node.n.dirty = true;
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 editSelection() {
if (moving_set.length > 0) {
var node = moving_set[0].n;
if (node.type === "subflow") {
RED.editor.editSubflow(activeSubflow);
} else {
RED.editor.edit(node);
}
}
}
function deleteSelection() {
if (moving_set.length > 0 || selected_link != null) {
var result;
var removedNodes = [];
var removedLinks = [];
var removedSubflowOutputs = [];
var removedSubflowInputs = [];
var subflowInstances = [];
var startDirty = RED.nodes.dirty();
var startChanged = false;
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.type != "subflow") {
if (node.x < 0) {
node.x = 25
}
var removedEntities = RED.nodes.remove(node.id);
removedNodes.push(node);
removedNodes = removedNodes.concat(removedEntities.nodes);
removedLinks = removedLinks.concat(removedEntities.links);
} else {
if (node.direction === "out") {
removedSubflowOutputs.push(node);
} else if (node.direction === "in") {
removedSubflowInputs.push(node);
}
node.dirty = true;
}
}
if (removedSubflowOutputs.length > 0) {
result = RED.subflow.removeOutput(removedSubflowOutputs);
if (result) {
removedLinks = removedLinks.concat(result.links);
}
}
// Assume 0/1 inputs
if (removedSubflowInputs.length == 1) {
result = RED.subflow.removeInput();
if (result) {
removedLinks = removedLinks.concat(result.links);
}
}
var instances = RED.subflow.refresh(true);
if (instances) {
subflowInstances = instances.instances;
}
moving_set = [];
if (removedNodes.length > 0 || removedSubflowOutputs.length > 0 || removedSubflowInputs.length > 0) {
RED.nodes.dirty(true);
}
}
if (selected_link) {
RED.nodes.removeLink(selected_link);
removedLinks.push(selected_link);
RED.nodes.dirty(true);
}
var historyEvent = {
t:"delete",
nodes:removedNodes,
links:removedLinks,
subflowOutputs:removedSubflowOutputs,
subflowInputs:removedSubflowInputs,
subflow: {
instances: subflowInstances
},
dirty:startDirty
};
RED.history.push(historyEvent);
selected_link = null;
updateActiveNodes();
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;
// The only time a node.type == subflow can be selected is the
// input/output "proxy" nodes. They cannot be copied.
if (node.type != "subflow") {
for (var d in node._def.defaults) {
if (node._def.defaults.hasOwnProperty(d)) {
if (node._def.defaults[d].type) {
var configNode = RED.nodes.node(node[d]);
if (configNode && configNode._def.exclusive) {
nns.push(RED.nodes.convertNode(configNode));
}
}
}
}
nns.push(RED.nodes.convertNode(node));
//TODO: if the node has an exclusive config node, it should also be copied, to ensure it remains exclusive...
}
}
clipboard = JSON.stringify(nns);
RED.notify(RED._("clipboard.nodeCopied",{count:nns.length}));
}
}
function calculateTextWidth(str, className, offset) {
var sp = document.createElement("span");
sp.className = className;
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 offset+w;
}
function resetMouseVars() {
mousedown_node = null;
mouseup_node = null;
mousedown_link = null;
mouse_mode = 0;
mousedown_port_type = 0;
activeSpliceLink = null;
spliceActive = false;
d3.select(".link_splice").classed("link_splice",false);
if (spliceTimer) {
clearTimeout(spliceTimer);
spliceTimer = null;
}
}
function disableQuickJoinEventHandler(evt) {
// Check for ctrl (all browsers), "Meta" (Chrome/FF), keyCode 91 (Safari)
if (evt.keyCode === 17 || evt.key === "Meta" || evt.keyCode === 91) {
resetMouseVars();
hideDragLines();
redraw();
$(window).off('keyup',disableQuickJoinEventHandler);
}
}
function portMouseDown(d,portType,portIndex) {
//console.log(d,portType,portIndex);
// disable zoom
//vis.call(d3.behavior.zoom().on("zoom"), null);
mousedown_node = d;
mousedown_port_type = portType;
mousedown_port_index = portIndex || 0;
if (mouse_mode !== RED.state.QUICK_JOINING) {
mouse_mode = RED.state.JOINING;
document.body.style.cursor = "crosshair";
if (d3.event.ctrlKey || d3.event.metaKey) {
mouse_mode = RED.state.QUICK_JOINING;
showDragLines([{node:mousedown_node,port:mousedown_port_index,portType:mousedown_port_type}]);
$(window).on('keyup',disableQuickJoinEventHandler);
}
}
d3.event.stopPropagation();
d3.event.preventDefault();
}
function portMouseUp(d,portType,portIndex) {
var i;
if (mouse_mode === RED.state.QUICK_JOINING) {
if (drag_lines[0].node===d) {
return
}
}
document.body.style.cursor = "";
if (mouse_mode == RED.state.JOINING || mouse_mode == RED.state.QUICK_JOINING) {
if (typeof TouchEvent != "undefined" && d3.event instanceof TouchEvent) {
RED.nodes.eachNode(function(n) {
if (n.z == RED.workspaces.active()) {
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.inputs>0?1:0;
portIndex = 0;
}
}
});
} else {
mouseup_node = d;
}
var addedLinks = [];
var removedLinks = [];
for (i=0;i<drag_lines.length;i++) {
if (drag_lines[i].link) {
removedLinks.push(drag_lines[i].link)
}
}
for (i=0;i<drag_lines.length;i++) {
if (portType != drag_lines[i].portType && mouseup_node !== drag_lines[i].node) {
var drag_line = drag_lines[i];
var src,dst,src_port;
if (drag_line.portType === 0) {
src = drag_line.node;
src_port = drag_line.port;
dst = mouseup_node;
} else if (drag_line.portType == 1) {
src = mouseup_node;
dst = drag_line.node;
src_port = portIndex;
}
var existingLink = RED.nodes.filterLinks({source:src,target:dst,sourcePort: src_port}).length !== 0;
if (!existingLink) {
var link = {source: src, sourcePort:src_port, target: dst};
RED.nodes.addLink(link);
addedLinks.push(link);
}
}
}
if (addedLinks.length > 0 || removedLinks.length > 0) {
var historyEvent = {
t:"add",
links:addedLinks,
removedLinks: removedLinks,
dirty:RED.nodes.dirty()
};
if (activeSubflow) {
var subflowRefresh = RED.subflow.refresh(true);
if (subflowRefresh) {
historyEvent.subflow = {
id:activeSubflow.id,
changed: activeSubflow.changed,
instances: subflowRefresh.instances
}
}
}
RED.history.push(historyEvent);
updateActiveNodes();
RED.nodes.dirty(true);
}
if (mouse_mode === RED.state.QUICK_JOINING) {
if (addedLinks.length > 0) {
hideDragLines();
if (portType === 1 && d.outputs > 0) {
showDragLines([{node:d,port:0,portType:0}]);
} else if (portType === 0 && d.inputs > 0) {
showDragLines([{node:d,port:0,portType:1}]);
} else {
resetMouseVars();
}
}
redraw();
return;
}
resetMouseVars();
hideDragLines();
selected_link = null;
redraw();
}
}
function nodeMouseUp(d) {
if (dblClickPrimed && mousedown_node == d && clickElapsed > 0 && clickElapsed < 750) {
mouse_mode = RED.state.DEFAULT;
if (d.type != "subflow") {
RED.editor.edit(d);
} else {
RED.editor.editSubflow(activeSubflow);
}
clickElapsed = 0;
d3.event.stopPropagation();
return;
}
var direction = d._def? (d.inputs > 0 ? 1: 0) : (d.direction == "in" ? 0: 1)
portMouseUp(d, direction, 0);
}
function nodeMouseDown(d) {
focusView();
//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");
if (activeSpliceLink) {
// TODO: DRY - droppable/nodeMouseDown/canvasMouseUp
var spliceLink = d3.select(activeSpliceLink).data()[0];
RED.nodes.removeLink(spliceLink);
var link1 = {
source:spliceLink.source,
sourcePort:spliceLink.sourcePort,
target: moving_set[0].n
};
var link2 = {
source:moving_set[0].n,
sourcePort:0,
target: spliceLink.target
};
RED.nodes.addLink(link1);
RED.nodes.addLink(link2);
var historyEvent = RED.history.peek();
historyEvent.links = [link1,link2];
historyEvent.removedLinks = [spliceLink];
updateActiveNodes();
}
updateSelection();
RED.nodes.dirty(true);
redraw();
resetMouseVars();
d3.event.stopPropagation();
return;
} else if (mouse_mode == RED.state.QUICK_JOINING) {
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||d3.event.metaKey)) {
mousedown_node.selected = false;
for (i=0;i<moving_set.length;i+=1) {
if (moving_set[i].n === mousedown_node) {
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 && !d3.event.metaKey) {
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 (!activeSubflow && !d.changed) {
if (d._def.button.toggle) {
d[d._def.button.toggle] = !d[d._def.button.toggle];
d.dirty = true;
}
if (d._def.button.onclick) {
try {
d._def.button.onclick.call(d);
} catch(err) {
console.log("Definition error: "+d.type+".onclick",err);
}
}
if (d.dirty) {
redraw();
}
} else if (d.changed) {
RED.notify(RED._("notification.warning", {message:RED._("notification.warnings.undeployedChanges")}),"warning");
} else {
RED.notify(RED._("notification.warning", {message:RED._("notification.warnings.nodeActionDisabled")}),"warning");
}
d3.event.preventDefault();
}
function showTouchMenu(obj,pos) {
var mdn = mousedown_node;
var options = [];
options.push({name:"delete",disabled:(moving_set.length===0 && selected_link === null),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,false,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);
// Don't bother redrawing nodes if we're drawing links
if (mouse_mode != RED.state.JOINING) {
var dirtyNodes = {};
if (activeSubflow) {
var subflowOutputs = vis.selectAll(".subflowoutput").data(activeSubflow.out,function(d,i){ return d.id;});
subflowOutputs.exit().remove();
var outGroup = subflowOutputs.enter().insert("svg:g").attr("class","node subflowoutput").attr("transform",function(d) { return "translate("+(d.x-20)+","+(d.y-20)+")"});
outGroup.each(function(d,i) {
d.w=40;
d.h=40;
});
outGroup.append("rect").attr("class","subflowport").attr("rx",8).attr("ry",8).attr("width",40).attr("height",40)
// TODO: This is exactly the same set of handlers used for regular nodes - DRY
.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);
});
outGroup.append("rect").attr("class","port").attr("rx",3).attr("ry",3).attr("width",10).attr("height",10).attr("x",-5).attr("y",15)
.on("mousedown", function(d,i){portMouseDown(d,1,0);} )
.on("touchstart", function(d,i){portMouseDown(d,1,0);} )
.on("mouseup", function(d,i){portMouseUp(d,1,0);})
.on("touchend",function(d,i){portMouseUp(d,1,0);} )
.on("mouseover",function(d,i) { var port = d3.select(this); port.classed("port_hovered",(mouse_mode!=RED.state.JOINING || (drag_lines.length > 0 && drag_lines[0].portType !== 1)));})
.on("mouseout",function(d,i) { var port = d3.select(this); port.classed("port_hovered",false);});
outGroup.append("svg:text").attr("class","port_label").attr("x",20).attr("y",8).style("font-size","10px").text("output");
outGroup.append("svg:text").attr("class","port_label port_index").attr("x",20).attr("y",24).text(function(d,i){ return i+1});
var subflowInputs = vis.selectAll(".subflowinput").data(activeSubflow.in,function(d,i){ return d.id;});
subflowInputs.exit().remove();
var inGroup = subflowInputs.enter().insert("svg:g").attr("class","node subflowinput").attr("transform",function(d) { return "translate("+(d.x-20)+","+(d.y-20)+")"});
inGroup.each(function(d,i) {
d.w=40;
d.h=40;
});
inGroup.append("rect").attr("class","subflowport").attr("rx",8).attr("ry",8).attr("width",40).attr("height",40)
// TODO: This is exactly the same set of handlers used for regular nodes - DRY
.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);
});
inGroup.append("rect").attr("class","port").attr("rx",3).attr("ry",3).attr("width",10).attr("height",10).attr("x",35).attr("y",15)
.on("mousedown", function(d,i){portMouseDown(d,0,i);} )
.on("touchstart", function(d,i){portMouseDown(d,0,i);} )
.on("mouseup", function(d,i){portMouseUp(d,0,i);})
.on("touchend",function(d,i){portMouseUp(d,0,i);} )
.on("mouseover",function(d,i) { var port = d3.select(this); port.classed("port_hovered",(mouse_mode!=RED.state.JOINING || (drag_lines.length > 0 && drag_lines[0].portType !== 0) ));})
.on("mouseout",function(d,i) { var port = d3.select(this); port.classed("port_hovered",false);});
inGroup.append("svg:text").attr("class","port_label").attr("x",18).attr("y",20).style("font-size","10px").text("input");
subflowOutputs.each(function(d,i) {
if (d.dirty) {
var output = d3.select(this);
output.selectAll(".subflowport").classed("node_selected",function(d) { return d.selected; })
output.selectAll(".port_index").text(function(d){ return d.i+1});
output.attr("transform", function(d) { return "translate(" + (d.x-d.w/2) + "," + (d.y-d.h/2) + ")"; });
dirtyNodes[d.id] = d;
d.dirty = false;
}
});
subflowInputs.each(function(d,i) {
if (d.dirty) {
var input = d3.select(this);
input.selectAll(".subflowport").classed("node_selected",function(d) { return d.selected; })
input.attr("transform", function(d) { return "translate(" + (d.x-d.w/2) + "," + (d.y-d.h/2) + ")"; });
dirtyNodes[d.id] = d;
d.dirty = false;
}
});
} else {
vis.selectAll(".subflowoutput").remove();
vis.selectAll(".subflowinput").remove();
}
var node = vis.selectAll(".nodegroup").data(activeNodes,function(d){return d.id});
node.exit().remove();
var nodeEnter = node.enter().insert("svg:g")
.attr("class", "node nodegroup")
.classed("node_subflow",function(d) { return activeSubflow != null; })
.classed("node_link",function(d) { return d.type === "link in" || d.type === "link out" });
nodeEnter.each(function(d,i) {
var node = d3.select(this);
var isLink = d.type === "link in" || d.type === "link out";
node.attr("id",d.id);
var l = d._def.label;
try {
l = (typeof l === "function" ? l.call(d) : l)||"";
} catch(err) {
console.log("Definition error: "+d.type+".label",err);
l = d.type;
}
if (isLink) {
d.w = node_height;
} else {
d.w = Math.max(node_width,gridSize*(Math.ceil((calculateTextWidth(l, "node_label", 50)+(d._def.inputs>0?7:0))/gridSize)) );
}
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",5)
.attr("ry",5)
.attr("width",32)
.attr("height",node_height-4)
.attr("fill","#eee");//function(d) { return d._def.color;})
nodeButtonGroup.append("rect")
.attr("class","node_button_button")
.attr("x",function(d) { return d._def.align == "right"? 11:5})
.attr("y",4)
.attr("rx",4)
.attr("ry",4)
.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 && !d.changed) {focusView();d3.select(this).attr("fill-opacity",0.2);d3.event.preventDefault(); d3.event.stopPropagation();}})
.on("mouseup",function(d) {if (!lasso && !d.changed) { d3.select(this).attr("fill-opacity",0.4);d3.event.preventDefault();d3.event.stopPropagation();}})
.on("mouseover",function(d) {if (!lasso && !d.changed) { d3.select(this).attr("fill-opacity",0.4);}})
.on("mouseout",function(d) {if (!lasso && !d.changed) {
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", 5)
.attr("ry", 5)
.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","1");
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.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");
}
if (!isLink) {
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);
if (d._def.align === "right") {
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);
}
//node.append("circle").attr({"class":"centerDot","cx":0,"cy":0,"r":5});
//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) {
var isLink = d.type === "link in" || d.type === "link out";
dirtyNodes[d.id] = d;
//if (d.x < -50) deleteSelection(); // Delete nodes if dragged back to palette
if (!isLink && d.resize) {
var l = d._def.label;
try {
l = (typeof l === "function" ? l.call(d) : l)||"";
} catch(err) {
console.log("Definition error: "+d.type+".label",err);
l = d.type;
}
var ow = d.w;
d.w = Math.max(node_width,gridSize*(Math.ceil((calculateTextWidth(l, "node_label", 50)+(d._def.inputs>0?7:0))/gridSize)) );
d.h = Math.max(node_height,(d.outputs||0) * 15);
d.x += (d.w-ow)/2;
d.resize = false;
}
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) + ")"; });
if (mouse_mode != RED.state.MOVING_ACTIVE) {
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 inputPorts = thisNode.selectAll(".port_input");
if (d.inputs === 0 && !inputPorts.empty()) {
inputPorts.remove();
//nodeLabel.attr("x",30);
} else if (d.inputs === 1 && inputPorts.empty()) {
var inputGroup = thisNode.append("g").attr("class","port_input");
inputGroup.append("rect").attr("class","port").attr("rx",3).attr("ry",3).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 || (drag_lines.length > 0 && drag_lines[0].portType !== 1) ));})
.on("mouseout",function(d) { var port = d3.select(this); port.classed("port_hovered",false);})
}
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);
var output_group = d._ports.enter().append("g").attr("class","port_output");
output_group.append("rect").attr("class","port").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 || (drag_lines.length > 0 && drag_lines[0].portType !== 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);
port.attr("transform", function(d) { return "translate("+x+","+((y+13*i)-5)+")";});
});
}
thisNode.selectAll("text.node_label").text(function(d,i){
var l = "";
if (d._def.label) {
l = d._def.label;
try {
l = (typeof l === "function" ? l.call(d) : l)||"";
l = RED.text.bidi.enforceTextDirectionWithUCC(l);
} catch(err) {
console.log("Definition error: "+d.type+".label",err);
l = d.type;
}
}
return l;
})
.attr("y", function(d){return (d.h/2)-1;})
.attr("class",function(d){
var s = "";
if (d._def.labelStyle) {
s = d._def.labelStyle;
try {
s = (typeof s === "function" ? s.call(d) : s)||"";
} catch(err) {
console.log("Definition error: "+d.type+".labelStyle",err);
s = "";
}
s = " "+s;
}
return "node_label"+
(d._def.align?" node_label_"+d._def.align:"")+s;
});
if (d._def.icon) {
icon = thisNode.select(".node_icon");
var current_url = icon.attr("xlink:href");
var icon_url;
if (typeof d._def.icon == "function") {
try {
icon_url = d._def.icon.call(d);
} catch(err) {
console.log("icon",err);
icon_url = "arrow-in.png";
}
} else {
icon_url = d._def.icon;
}
if ("icons/"+icon_url != current_url) {
icon.attr("xlink:href","icons/"+icon_url);
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);
}
}
}
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("transform",function(d){return "translate(-5,"+((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_button").attr("opacity",function(d) {
return (activeSubflow||d.changed)?0.4:1
});
thisNode.selectAll(".node_button_button").attr("cursor",function(d) {
return (activeSubflow||d.changed)?"":"pointer";
});
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") {
try {
return d._def.badge.call(d);
} catch(err) {
console.log("Definition error: "+d.type+".badge",err);
return "";
}
} 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(
activeLinks,
function(d) {
return d.source.id+":"+d.sourcePort+":"+d.target.id+":"+d.target.i;
}
);
var linkEnter = link.enter().insert("g",".node").attr("class","link");
linkEnter.each(function(d,i) {
var l = d3.select(this);
d.added = true;
l.append("svg:path").attr("class","link_background link_path")
.on("mousedown",function(d) {
mousedown_link = d;
clearSelection();
selected_link = mousedown_link;
updateSelection();
redraw();
focusView();
d3.event.stopPropagation();
})
.on("touchstart",function(d) {
mousedown_link = d;
clearSelection();
selected_link = mousedown_link;
updateSelection();
redraw();
focusView();
d3.event.stopPropagation();
var obj = d3.select(document.body);
var touch0 = d3.event.touches.item(0);
var pos = [touch0.pageX,touch0.pageY];
touchStartTime = setTimeout(function() {
touchStartTime = null;
showTouchMenu(obj,pos);
},touchLongPressTimeout);
})
l.append("svg:path").attr("class","link_outline link_path");
l.append("svg:path").attr("class","link_line link_path")
.classed("link_link", function(d) { return d.link })
.classed("link_subflow", function(d) { return !d.link && activeSubflow });
});
link.exit().remove();
var links = vis.selectAll(".link_path");
links.each(function(d) {
var link = d3.select(this);
if (d.added || d===selected_link || d.selected || dirtyNodes[d.source.id] || dirtyNodes[d.target.id]) {
link.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) {
delete d.added;
return d.target.type == "unknown" || d.source.type == "unknown"
});
var offLinks = vis.selectAll(".link_flow_link_g").data(
activeFlowLinks,
function(d) {
return d.node.id+":"+d.refresh
}
);
var offLinksEnter = offLinks.enter().insert("g",".node").attr("class","link_flow_link_g");
offLinksEnter.each(function(d,i) {
var g = d3.select(this);
var s = 1;
var labelAnchor = "start";
if (d.node.type === "link in") {
s = -1;
labelAnchor = "end";
}
var stemLength = s*30;
var branchLength = s*20;
var l = g.append("svg:path").attr("class","link_flow_link")
.attr("class","link_link").attr("d","M 0 0 h "+stemLength);
var links = d.links;
var flows = Object.keys(links);
var tabOrder = RED.nodes.getWorkspaceOrder();
flows.sort(function(A,B) {
return tabOrder.indexOf(A) - tabOrder.indexOf(B);
});
var linkWidth = 10;
var h = node_height;
var y = -(flows.length-1)*h/2;
var linkGroups = g.selectAll(".link_group").data(flows);
var enterLinkGroups = linkGroups.enter().append("g").attr("class","link_group")
.on('mouseover', function() { d3.select(this).classed('link_group_active',true)})
.on('mouseout', function() { d3.select(this).classed('link_group_active',false)})
.on('mousedown', function() { d3.event.preventDefault(); d3.event.stopPropagation(); })
.on('mouseup', function(f) {
d3.event.stopPropagation();
var targets = d.links[f];
RED.workspaces.show(f);
targets.forEach(function(n) {
n.selected = true;
n.dirty = true;
moving_set.push({n:n});
});
updateSelection();
redraw();
});
enterLinkGroups.each(function(f) {
var linkG = d3.select(this);
linkG.append("svg:path").attr("class","link_flow_link")
.attr("class","link_link")
.attr("d",
"M "+stemLength+" 0 "+
"C "+(stemLength+(1.7*branchLength))+" "+0+
" "+(stemLength+(0.1*branchLength))+" "+y+" "+
(stemLength+branchLength*1.5)+" "+y+" "
);
linkG.append("svg:path")
.attr("class","link_port")
.attr("d",
"M "+(stemLength+branchLength*1.5+s*(linkWidth+7))+" "+(y-12)+" "+
"h "+(-s*linkWidth)+" "+
"a 3 3 45 0 "+(s===1?"0":"1")+" "+(s*-3)+" 3 "+
"v 18 "+
"a 3 3 45 0 "+(s===1?"0":"1")+" "+(s*3)+" 3 "+
"h "+(s*linkWidth)
);
linkG.append("svg:path")
.attr("class","link_port")
.attr("d",
"M "+(stemLength+branchLength*1.5+s*(linkWidth+10))+" "+(y-12)+" "+
"h "+(s*(linkWidth*3))+" "+
"M "+(stemLength+branchLength*1.5+s*(linkWidth+10))+" "+(y+12)+" "+
"h "+(s*(linkWidth*3))
).style("stroke-dasharray","12 3 8 4 3");
linkG.append("rect").attr("class","port link_port")
.attr("x",stemLength+branchLength*1.5-4+(s*4))
.attr("y",y-4)
.attr("rx",2)
.attr("ry",2)
.attr("width",8)
.attr("height",8);
linkG.append("rect")
.attr("x",stemLength+branchLength*1.5-(s===-1?node_width:0))
.attr("y",y-12)
.attr("width",node_width)
.attr("height",24)
.style("stroke","none")
.style("fill","transparent")
var tab = RED.nodes.workspace(f);
var label;
if (tab) {
label = tab.label || tab.id;
}
linkG.append("svg:text")
.attr("class","port_label")
.attr("x",stemLength+branchLength*1.5+(s*15))
.attr("y",y+1)
.style("font-size","10px")
.style("text-anchor",labelAnchor)
.text(label);
y += h;
});
linkGroups.exit().remove();
});
offLinks.exit().remove();
offLinks = vis.selectAll(".link_flow_link_g");
offLinks.each(function(d) {
var s = 1;
if (d.node.type === "link in") {
s = -1;
}
var link = d3.select(this);
link.attr("transform", function(d) { return "translate(" + (d.node.x+(s*d.node.w/2)) + "," + (d.node.y) + ")"; });
})
} else {
// JOINING - unselect any selected links
vis.selectAll(".link_selected").data(
activeLinks,
function(d) {
return d.source.id+":"+d.sourcePort+":"+d.target.id+":"+d.target.i;
}
).classed("link_selected", false);
}
if (d3.event) {
d3.event.preventDefault();
}
}
function focusView() {
try {
// Workaround for browser unexpectedly scrolling iframe into full
// view - record the parent scroll position and restore it after
// setting the focus
var scrollX = window.parent.window.scrollX;
var scrollY = window.parent.window.scrollY;
$("#chart").focus();
window.parent.window.scrollTo(scrollX,scrollY);
} catch(err) {
// In case we're iframed into a page of a different origin, just focus
// the view following the inevitable DOMException
$("#chart").focus();
}
}
/**
* 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,addNewFlow,touchImport) {
try {
var activeSubflowChanged;
if (activeSubflow) {
activeSubflowChanged = activeSubflow.changed;
}
var result = RED.nodes.import(newNodesStr,true,addNewFlow);
if (result) {
var new_nodes = result[0];
var new_links = result[1];
var new_workspaces = result[2];
var new_subflows = result[3];
var new_default_workspace = result[4];
if (addNewFlow && new_default_workspace) {
RED.workspaces.show(new_default_workspace.id);
}
var new_ms = new_nodes.filter(function(n) { return n.hasOwnProperty("x") && n.hasOwnProperty("y") && n.z == RED.workspaces.active() }).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 (node.n._def.onadd) {
try {
node.n._def.onadd.call(node.n);
} catch(err) {
console.log("onadd:",err);
}
}
}
if (!touchImport) {
mouse_mode = RED.state.IMPORT_DRAGGING;
spliceActive = false;
if (new_ms.length === 1) {
node = new_ms[0];
spliceActive = node.n.hasOwnProperty("_def") &&
node.n._def.inputs > 0 &&
node.n._def.outputs > 0;
}
}
RED.keyboard.add("*","escape",function(){
RED.keyboard.remove("escape");
clearSelection();
RED.history.pop();
mouse_mode = 0;
});
clearSelection();
moving_set = new_ms;
}
var historyEvent = {
t:"add",
nodes:new_node_ids,
links:new_links,
workspaces:new_workspaces,
subflows:new_subflows,
dirty:RED.nodes.dirty()
};
if (new_ms.length === 0) {
RED.nodes.dirty(true);
}
if (activeSubflow) {
var subflowRefresh = RED.subflow.refresh(true);
if (subflowRefresh) {
historyEvent.subflow = {
id:activeSubflow.id,
changed: activeSubflowChanged,
instances: subflowRefresh.instances
}
}
}
RED.history.push(historyEvent);
updateActiveNodes();
redraw();
}
} catch(error) {
if (error.code != "NODE_RED") {
console.log(error.stack);
RED.notify(RED._("notification.error",{message:error.toString()}),"error");
} else {
RED.notify(RED._("notification.error",{message:error.message}),"error");
}
}
}
function toggleShowGrid(state) {
if (state) {
grid.style("visibility","visible");
} else {
grid.style("visibility","hidden");
}
}
function toggleSnapGrid(state) {
snapGrid = state;
redraw();
}
function toggleStatus(s) {
showStatus = s;
RED.nodes.eachNode(function(n) { n.dirty = true;});
//TODO: subscribe/unsubscribe here
redraw();
}
return {
init: init,
state:function(state) {
if (state == null) {
return mouse_mode
} else {
mouse_mode = state;
}
},
redraw: function(updateActive) {
if (updateActive) {
updateActiveNodes();
updateSelection();
}
redraw();
},
focus: focusView,
importNodes: importNodes,
calculateTextWidth: calculateTextWidth,
select: function(selection) {
if (typeof selection !== "undefined") {
clearSelection();
if (typeof selection == "string") {
var selectedNode = RED.nodes.node(selection);
if (selectedNode) {
selectedNode.selected = true;
selectedNode.dirty = true;
moving_set = [{n:selectedNode}];
}
}
}
updateSelection();
redraw();
},
selection: function() {
var selection = {};
if (moving_set.length > 0) {
selection.nodes = moving_set.map(function(n) { return n.n;});
}
if (selected_link != null) {
selection.link = selected_link;
}
return selection;
},
scale: function() {
return scaleFactor;
},
getLinksAtPoint: function(x,y) {
var result = [];
var links = outer.selectAll(".link_background")[0];
for (var i=0;i<links.length;i++) {
var bb = links[i].getBBox();
if (x >= bb.x && y >= bb.y && x <= bb.x+bb.width && y <= bb.y+bb.height) {
result.push(links[i])
}
}
return result;
},
reveal: function(id) {
if (RED.nodes.workspace(id) || RED.nodes.subflow(id)) {
RED.workspaces.show(id);
} else {
var node = RED.nodes.node(id);
if (node._def.category !== 'config' && node.z) {
node.highlighted = true;
node.dirty = true;
RED.workspaces.show(node.z);
var screenSize = [$("#chart").width(),$("#chart").height()];
var scrollPos = [$("#chart").scrollLeft(),$("#chart").scrollTop()];
if (node.x < scrollPos[0] || node.y < scrollPos[1] || node.x > screenSize[0]+scrollPos[0] || node.y > screenSize[1]+scrollPos[1]) {
var deltaX = '-='+((scrollPos[0] - node.x) + screenSize[0]/2);
var deltaY = '-='+((scrollPos[1] - node.y) + screenSize[1]/2);
$("#chart").animate({
scrollLeft: deltaX,
scrollTop: deltaY
},200);
}
if (!node._flashing) {
node._flashing = true;
var flash = 22;
var flashFunc = function() {
flash--;
node.dirty = true;
if (flash >= 0) {
node.highlighted = !node.highlighted;
setTimeout(flashFunc,100);
} else {
node.highlighted = false;
delete node._flashing;
}
RED.view.redraw();
}
flashFunc();
}
} else if (node._def.category === 'config') {
RED.sidebar.config.show(id);
}
}
}
};
})();
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