/**
* Copyright 2013, 2015 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 activeSubflow = null;
var activeNodes = [];
var activeLinks = [];
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("tabindex",1)
.attr("pointer-events", "all")
.style("cursor","crosshair")
.on("mousedown", function() {
this.focus();
});
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");
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.workspaces.on("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);
if (activeSubflow) {
$("#workspace-subflow-add-input").toggleClass("disabled",activeSubflow.in.length > 0);
}
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
$("#chart").droppable({
accept:".palette_node",
drop: function( event, ui ) {
d3.event = event;
var selected_tool = ui.draggable[0].type;
var m = /^subflow:(.+)$/.exec(selected_tool);
if (activeSubflow && m) {
var subflowId = m[1];
if (subflowId === activeSubflow.id) {
RED.notify("<strong>Error</strong>: Cannot add subflow to itself","error");
return;
}
if (RED.nodes.subflowContains(m[1],activeSubflow.id)) {
RED.notify("<strong>Error</strong>: Cannot add subflow - circular reference detected","error");
return;
}
}
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:RED.workspaces.active()};
nn.type = selected_tool;
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)) {
nn[d] = nn._def.defaults[d].value;
}
}
if (nn._def.onadd) {
nn._def.onadd.call(nn);
}
} else {
var subflow = RED.nodes.subflow(m[1]);
nn.inputs = subflow.in.length;
nn.outputs = subflow.out.length;
}
nn.changed = true;
nn.h = Math.max(node_height,(nn.outputs||0) * 15);
RED.history.push({t:'add',nodes:[nn.id],dirty:RED.nodes.dirty()});
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.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();});
}
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 = 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;
}
} 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;
}
}
}
}
}
if (mouse_mode !== 0) {
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 == 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 ) {
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:RED.nodes.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);
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() {
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);
}
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;
}
eventHandler.emit("selection-changed",selection);
}
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:RED.nodes.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 removedSubflowOutputs = [];
var removedSubflowInputs = [];
var startDirty = RED.nodes.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.type != "subflow") {
if (node.x < 0) {
node.x = 25
}
var rmlinks = RED.nodes.remove(node.id);
removedNodes.push(node);
removedLinks = removedLinks.concat(rmlinks);
} else {
if (node.direction === "out") {
removedSubflowOutputs.push(node);
} else if (node.direction === "in") {
removedSubflowInputs.push(node);
}
node.dirty = true;
}
}
if (removedSubflowOutputs.length > 0) {
removedSubflowOutputs.sort(function(a,b) { return b.i-a.i});
for (i=0;i<removedSubflowOutputs.length;i++) {
var output = removedSubflowOutputs[i];
activeSubflow.out.splice(output.i,1);
var subflowRemovedLinks = [];
var subflowMovedLinks = [];
RED.nodes.eachLink(function(l) {
if (l.target.type == "subflow" && l.target.z == activeSubflow.id && l.target.i == output.i) {
subflowRemovedLinks.push(l);
}
if (l.source.type == "subflow:"+activeSubflow.id) {
if (l.sourcePort == output.i) {
subflowRemovedLinks.push(l);
} else if (l.sourcePort > output.i) {
subflowMovedLinks.push(l);
}
}
});
subflowRemovedLinks.forEach(function(l) { RED.nodes.removeLink(l)});
subflowMovedLinks.forEach(function(l) { l.sourcePort--; });
removedLinks = removedLinks.concat(subflowRemovedLinks);
for (var j=output.i;j<activeSubflow.out.length;j++) {
activeSubflow.out[j].i--;
activeSubflow.out[j].dirty = true;
}
}
}
// Assume 0/1 inputs
if (removedSubflowInputs.length == 1) {
var input = removedSubflowInputs[0];
var subflowRemovedInputLinks = [];
RED.nodes.eachLink(function(l) {
if (l.source.type == "subflow" && l.source.z == activeSubflow.id && l.source.i == input.i) {
subflowRemovedInputLinks.push(l);
} else if (l.target.type == "subflow:"+activeSubflow.id) {
subflowRemovedInputLinks.push(l);
}
});
subflowRemovedInputLinks.forEach(function(l) { RED.nodes.removeLink(l)});
removedLinks = removedLinks.concat(subflowRemovedInputLinks);
activeSubflow.in = [];
$("#workspace-subflow-add-input").toggleClass("disabled",false);
}
if (activeSubflow) {
RED.nodes.filterNodes({type:"subflow:"+activeSubflow.id}).forEach(function(n) {
n.changed = true;
n.inputs = activeSubflow.in.length;
n.outputs = activeSubflow.out.length;
while (n.outputs < n.ports.length) {
n.ports.pop();
}
n.resize = true;
n.dirty = true;
});
RED.editor.validateNode(activeSubflow);
}
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);
}
RED.history.push({t:'delete',nodes:removedNodes,links:removedLinks,subflowOutputs:removedSubflowOutputs,subflowInputs:removedSubflowInputs,dirty:startDirty});
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;
if (node.type != "subflow") {
nns.push(RED.nodes.convertNode(node));
}
}
clipboard = JSON.stringify(nns);
RED.notify(nns.length+" node"+(nns.length>1?"s":"")+" copied");
}
}
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,"&").replace(/</g,"<").replace(/>/g,">");
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;
}
function portMouseDown(d,portType,portIndex) {
//console.log(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 == 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;
}
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 = 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);
RED.history.push({t:'add',links:[link],dirty:RED.nodes.dirty()});
updateActiveNodes();
RED.nodes.dirty(true);
} else {
}
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 */ 27);
updateSelection();
RED.nodes.dirty(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 (!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) {
d._def.button.onclick.call(d);
}
if (d.dirty) {
redraw();
}
} else if (d.changed) {
RED.notify("<strong>Warning</strong>: node has undeployed changes","warning");
} else {
RED.notify("<strong>Warning</strong>: node actions disabled within subflow","warning");
}
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);
// 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 || mousedown_port_type !== 0 ));})
.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 || mousedown_port_type !== 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");
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, "node_label", 50)+(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("class","node_button_button")
.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 && !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", 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.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});
//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) {
dirtyNodes[d.id] = d;
//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, "node_label", 50)+(d._def.inputs>0?7:0) );
d.h = Math.max(node_height,(d.outputs||0) * 15);
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 || mousedown_port_type != 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 || 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);
port.attr("transform", function(d) { return "translate("+x+","+((y+13*i)-5)+")";});
});
}
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):'') ;
});
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") {
icon_url = d._def.icon.call(d);
} 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") {
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(
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();
});
l.append("svg:path").attr("class","link_outline link_path");
l.append("svg:path").attr("class","link_line link_path")
.classed("link_subflow", function(d) { return activeSubflow && (d.source.type === "subflow" || d.target.type === "subflow") });
});
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"
});
} 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() {
$("#chart svg").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,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_subflows = result[3];
var new_ms = new_nodes.filter(function(n) { return 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 (!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,
subflows:new_subflows,
dirty:RED.nodes.dirty()
});
updateActiveNodes();
redraw();
}
} catch(error) {
if (error.code != "NODE_RED") {
console.log(error.stack);
RED.notify("<strong>Error</strong>: "+error,"error");
} else {
RED.notify("<strong>Error</strong>: "+error.message,"error");
}
}
}
// TODO: DRY
var eventHandler = (function() {
var handlers = {};
return {
on: function(evt,func) {
handlers[evt] = handlers[evt]||[];
handlers[evt].push(func);
},
emit: function(evt,arg) {
if (handlers[evt]) {
for (var i=0;i<handlers[evt].length;i++) {
handlers[evt][i](arg);
}
}
}
}
})();
return {
init: init,
on: eventHandler.on,
state:function(state) {
if (state == null) {
return mouse_mode
} else {
mouse_mode = state;
}
},
redraw: function(updateActive) {
if (updateActive) {
updateActiveNodes();
}
RED.workspaces.refresh();
redraw();
},
focus: focusView,
importNodes: importNodes,
status: function(s) {
if (s == null) {
return showStatus;
} else {
showStatus = s;
RED.nodes.eachNode(function(n) { n.dirty = true;});
//TODO: subscribe/unsubscribe here
redraw();
}
},
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;
}
};
})();