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

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/**
* Copyright 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.subflow = (function() {
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function getSubflow() {
return RED.nodes.subflow(RED.workspaces.active());
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}
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function findAvailableSubflowIOPosition(subflow,isInput) {
var pos = {x:50,y:30};
if (!isInput) {
pos.x += 110;
}
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for (var i=0;i<subflow.out.length+subflow.in.length;i++) {
var port;
if (i < subflow.out.length) {
port = subflow.out[i];
} else {
port = subflow.in[i-subflow.out.length];
}
if (port.x == pos.x && port.y == pos.y) {
pos.x += 55;
i=0;
}
}
return pos;
}
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function addSubflowInput() {
var subflow = RED.nodes.subflow(RED.workspaces.active());
if (subflow.in.length === 1) {
return;
}
var position = findAvailableSubflowIOPosition(subflow,true);
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var newInput = {
type:"subflow",
direction:"in",
z:subflow.id,
i:subflow.in.length,
x:position.x,
y:position.y,
id:RED.nodes.id()
};
var oldInCount = subflow.in.length;
subflow.in.push(newInput);
subflow.dirty = true;
var wasDirty = RED.nodes.dirty();
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var wasChanged = subflow.changed;
subflow.changed = true;
var result = refresh(true);
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var historyEvent = {
t:'edit',
node:subflow,
dirty:wasDirty,
changed:wasChanged,
subflow: {
inputCount: oldInCount,
instances: result.instances
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}
};
RED.history.push(historyEvent);
RED.view.select();
RED.nodes.dirty(true);
RED.view.redraw();
$("#workspace-subflow-input-add").addClass("active");
$("#workspace-subflow-input-remove").removeClass("active");
}
function removeSubflowInput() {
var activeSubflow = RED.nodes.subflow(RED.workspaces.active());
if (activeSubflow.in.length === 0) {
return;
}
var removedInput = activeSubflow.in[0];
var removedInputLinks = [];
RED.nodes.eachLink(function(l) {
if (l.source.type == "subflow" && l.source.z == activeSubflow.id && l.source.i == removedInput.i) {
removedInputLinks.push(l);
} else if (l.target.type == "subflow:"+activeSubflow.id) {
removedInputLinks.push(l);
}
});
removedInputLinks.forEach(function(l) { RED.nodes.removeLink(l)});
activeSubflow.in = [];
$("#workspace-subflow-input-add").removeClass("active");
$("#workspace-subflow-input-remove").addClass("active");
activeSubflow.changed = true;
return {subflowInputs: [ removedInput ], links:removedInputLinks};
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}
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function addSubflowOutput(id) {
var subflow = RED.nodes.subflow(RED.workspaces.active());
var position = findAvailableSubflowIOPosition(subflow,false);
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var newOutput = {
type:"subflow",
direction:"out",
z:subflow.id,
i:subflow.out.length,
x:position.x,
y:position.y,
id:RED.nodes.id()
};
var oldOutCount = subflow.out.length;
subflow.out.push(newOutput);
subflow.dirty = true;
var wasDirty = RED.nodes.dirty();
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var wasChanged = subflow.changed;
subflow.changed = true;
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var result = refresh(true);
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var historyEvent = {
t:'edit',
node:subflow,
dirty:wasDirty,
changed:wasChanged,
subflow: {
outputCount: oldOutCount,
instances: result.instances
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}
};
RED.history.push(historyEvent);
RED.view.select();
RED.nodes.dirty(true);
RED.view.redraw();
$("#workspace-subflow-output .spinner-value").html(subflow.out.length);
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}
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function removeSubflowOutput(removedSubflowOutputs) {
var activeSubflow = RED.nodes.subflow(RED.workspaces.active());
if (activeSubflow.out.length === 0) {
return;
}
if (typeof removedSubflowOutputs === "undefined") {
removedSubflowOutputs = [activeSubflow.out[activeSubflow.out.length-1]];
}
var removedLinks = [];
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;
}
}
activeSubflow.changed = true;
return {subflowOutputs: removedSubflowOutputs, links: removedLinks}
}
function refresh(markChange) {
var activeSubflow = RED.nodes.subflow(RED.workspaces.active());
refreshToolbar(activeSubflow);
var subflowInstances = [];
if (activeSubflow) {
RED.nodes.filterNodes({type:"subflow:"+activeSubflow.id}).forEach(function(n) {
subflowInstances.push({
id: n.id,
changed: n.changed
});
if (markChange) {
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.updateNodeProperties(n);
});
RED.editor.validateNode(activeSubflow);
return {
instances: subflowInstances
}
}
}
function refreshToolbar(activeSubflow) {
if (activeSubflow) {
$("#workspace-subflow-input-add").toggleClass("active", activeSubflow.in.length !== 0);
$("#workspace-subflow-input-remove").toggleClass("active",activeSubflow.in.length === 0);
$("#workspace-subflow-output .spinner-value").html(activeSubflow.out.length);
}
}
function showWorkspaceToolbar(activeSubflow) {
var toolbar = $("#workspace-toolbar");
toolbar.empty();
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$('<a class="button" id="workspace-subflow-edit" href="#" data-i18n="[append]subflow.editSubflowProperties"><i class="fa fa-pencil"></i> </a>').appendTo(toolbar);
$('<span style="margin-left: 5px;" data-i18n="subflow.input"></span> '+
'<div style="display: inline-block;" class="button-group">'+
'<a id="workspace-subflow-input-remove" class="button active" href="#">0</a>'+
'<a id="workspace-subflow-input-add" class="button" href="#">1</a>'+
'</div>').appendTo(toolbar);
$('<span style="margin-left: 5px;" data-i18n="subflow.output"></span> <div id="workspace-subflow-output" style="display: inline-block;" class="button-group spinner-group">'+
'<a id="workspace-subflow-output-remove" class="button" href="#"><i class="fa fa-minus"></i></a>'+
'<div class="spinner-value">3</div>'+
'<a id="workspace-subflow-output-add" class="button" href="#"><i class="fa fa-plus"></i></a>'+
'</div>').appendTo(toolbar);
// $('<a class="button disabled" id="workspace-subflow-add-input" href="#" data-i18n="[append]subflow.input"><i class="fa fa-plus"></i> </a>').appendTo(toolbar);
// $('<a class="button" id="workspace-subflow-add-output" href="#" data-i18n="[append]subflow.output"><i class="fa fa-plus"></i> </a>').appendTo(toolbar);
$('<a class="button" id="workspace-subflow-delete" href="#" data-i18n="[append]subflow.deleteSubflow"><i class="fa fa-trash"></i> </a>').appendTo(toolbar);
toolbar.i18n();
$("#workspace-subflow-output-remove").click(function(event) {
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event.preventDefault();
var wasDirty = RED.nodes.dirty();
var wasChanged = activeSubflow.changed;
var result = removeSubflowOutput();
if (result) {
var inst = refresh(true);
RED.history.push({
t:'delete',
links:result.links,
subflowOutputs: result.subflowOutputs,
changed: wasChanged,
dirty:wasDirty,
subflow: {
instances: inst.instances
}
});
RED.view.select();
RED.nodes.dirty(true);
RED.view.redraw(true);
}
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});
$("#workspace-subflow-output-add").click(function(event) {
event.preventDefault();
addSubflowOutput();
});
$("#workspace-subflow-input-add").click(function(event) {
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event.preventDefault();
addSubflowInput();
});
$("#workspace-subflow-input-remove").click(function(event) {
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event.preventDefault();
var wasDirty = RED.nodes.dirty();
var wasChanged = activeSubflow.changed;
activeSubflow.changed = true;
var result = removeSubflowInput();
if (result) {
var inst = refresh(true);
RED.history.push({
t:'delete',
links:result.links,
changed: wasChanged,
subflowInputs: result.subflowInputs,
dirty:wasDirty,
subflow: {
instances: inst.instances
}
});
RED.view.select();
RED.nodes.dirty(true);
RED.view.redraw(true);
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}
});
$("#workspace-subflow-edit").click(function(event) {
RED.editor.editSubflow(RED.nodes.subflow(RED.workspaces.active()));
event.preventDefault();
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});
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$("#workspace-subflow-delete").click(function(event) {
event.preventDefault();
var removedNodes = [];
var removedLinks = [];
var startDirty = RED.nodes.dirty();
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var activeSubflow = getSubflow();
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RED.nodes.eachNode(function(n) {
if (n.type == "subflow:"+activeSubflow.id) {
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removedNodes.push(n);
}
if (n.z == activeSubflow.id) {
removedNodes.push(n);
}
});
RED.nodes.eachConfig(function(n) {
if (n.z == activeSubflow.id) {
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removedNodes.push(n);
}
});
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var removedConfigNodes = [];
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for (var i=0;i<removedNodes.length;i++) {
var removedEntities = RED.nodes.remove(removedNodes[i].id);
removedLinks = removedLinks.concat(removedEntities.links);
removedConfigNodes = removedConfigNodes.concat(removedEntities.nodes);
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}
// TODO: this whole delete logic should be in RED.nodes.removeSubflow..
removedNodes = removedNodes.concat(removedConfigNodes);
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RED.nodes.removeSubflow(activeSubflow);
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RED.history.push({
t:'delete',
nodes:removedNodes,
links:removedLinks,
subflow: {
subflow: activeSubflow
},
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dirty:startDirty
});
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RED.workspaces.remove(activeSubflow);
RED.nodes.dirty(true);
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RED.view.redraw();
});
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refreshToolbar(activeSubflow);
$("#chart").css({"margin-top": "40px"});
$("#workspace-toolbar").show();
}
function hideWorkspaceToolbar() {
$("#workspace-toolbar").hide().empty();
$("#chart").css({"margin-top": "0"});
}
function init() {
RED.events.on("workspace:change",function(event) {
var activeSubflow = RED.nodes.subflow(event.workspace);
if (activeSubflow) {
showWorkspaceToolbar(activeSubflow);
} else {
hideWorkspaceToolbar();
}
});
RED.events.on("view:selection-changed",function(selection) {
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if (!selection.nodes) {
RED.menu.setDisabled("menu-item-subflow-convert",true);
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} else {
RED.menu.setDisabled("menu-item-subflow-convert",false);
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}
});
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RED.actions.add("core:create-subflow",createSubflow);
RED.actions.add("core:convert-to-subflow",convertToSubflow);
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}
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function createSubflow() {
var lastIndex = 0;
RED.nodes.eachSubflow(function(sf) {
var m = (new RegExp("^Subflow (\\d+)$")).exec(sf.name);
if (m) {
lastIndex = Math.max(lastIndex,m[1]);
}
});
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var name = "Subflow "+(lastIndex+1);
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var subflowId = RED.nodes.id();
var subflow = {
type:"subflow",
id:subflowId,
name:name,
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info:"",
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in: [],
out: []
};
RED.nodes.addSubflow(subflow);
RED.history.push({
t:'createSubflow',
subflow: {
subflow:subflow
},
dirty:RED.nodes.dirty()
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});
RED.workspaces.show(subflowId);
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RED.nodes.dirty(true);
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}
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function convertToSubflow() {
var selection = RED.view.selection();
if (!selection.nodes) {
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RED.notify(RED._("subflow.errors.noNodesSelected"),"error");
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return;
}
var i,n;
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var nodes = {};
var new_links = [];
var removedLinks = [];
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var candidateInputs = [];
var candidateOutputs = [];
var candidateInputNodes = {};
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var boundingBox = [selection.nodes[0].x,
selection.nodes[0].y,
selection.nodes[0].x,
selection.nodes[0].y];
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for (i=0;i<selection.nodes.length;i++) {
n = selection.nodes[i];
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nodes[n.id] = {n:n,outputs:{}};
boundingBox = [
Math.min(boundingBox[0],n.x),
Math.min(boundingBox[1],n.y),
Math.max(boundingBox[2],n.x),
Math.max(boundingBox[3],n.y)
]
}
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var center = [(boundingBox[2]+boundingBox[0]) / 2,(boundingBox[3]+boundingBox[1]) / 2];
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RED.nodes.eachLink(function(link) {
if (nodes[link.source.id] && nodes[link.target.id]) {
// A link wholely within the selection
}
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if (nodes[link.source.id] && !nodes[link.target.id]) {
// An outbound link from the selection
candidateOutputs.push(link);
removedLinks.push(link);
}
if (!nodes[link.source.id] && nodes[link.target.id]) {
// An inbound link
candidateInputs.push(link);
candidateInputNodes[link.target.id] = link.target;
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removedLinks.push(link);
}
});
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var outputs = {};
candidateOutputs = candidateOutputs.filter(function(v) {
if (outputs[v.source.id+":"+v.sourcePort]) {
outputs[v.source.id+":"+v.sourcePort].targets.push(v.target);
return false;
}
v.targets = [];
v.targets.push(v.target);
outputs[v.source.id+":"+v.sourcePort] = v;
return true;
});
candidateOutputs.sort(function(a,b) { return a.source.y-b.source.y});
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if (Object.keys(candidateInputNodes).length > 1) {
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RED.notify(RED._("subflow.errors.multipleInputsToSelection"),"error");
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return;
}
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var lastIndex = 0;
RED.nodes.eachSubflow(function(sf) {
var m = (new RegExp("^Subflow (\\d+)$")).exec(sf.name);
if (m) {
lastIndex = Math.max(lastIndex,m[1]);
}
});
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var name = "Subflow "+(lastIndex+1);
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var subflowId = RED.nodes.id();
var subflow = {
type:"subflow",
id:subflowId,
name:name,
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info:"",
in: Object.keys(candidateInputNodes).map(function(v,i) { var index = i; return {
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type:"subflow",
direction:"in",
x:candidateInputNodes[v].x-(candidateInputNodes[v].w/2)-80,
y:candidateInputNodes[v].y,
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z:subflowId,
i:index,
id:RED.nodes.id(),
wires:[{id:candidateInputNodes[v].id}]
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}}),
out: candidateOutputs.map(function(v,i) { var index = i; return {
type:"subflow",
direction:"in",
x:v.source.x+(v.source.w/2)+80,
y:v.source.y,
z:subflowId,
i:index,
id:RED.nodes.id(),
wires:[{id:v.source.id,port:v.sourcePort}]
}})
};
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RED.nodes.addSubflow(subflow);
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var subflowInstance = {
id:RED.nodes.id(),
type:"subflow:"+subflow.id,
x: center[0],
y: center[1],
z: RED.workspaces.active(),
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inputs: subflow.in.length,
outputs: subflow.out.length,
h: Math.max(30/*node_height*/,(subflow.out.length||0) * 15),
changed:true
}
subflowInstance._def = RED.nodes.getType(subflowInstance.type);
RED.editor.validateNode(subflowInstance);
RED.nodes.add(subflowInstance);
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candidateInputs.forEach(function(l) {
var link = {source:l.source, sourcePort:l.sourcePort, target: subflowInstance};
new_links.push(link);
RED.nodes.addLink(link);
});
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candidateOutputs.forEach(function(output,i) {
output.targets.forEach(function(target) {
var link = {source:subflowInstance, sourcePort:i, target: target};
new_links.push(link);
RED.nodes.addLink(link);
});
});
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subflow.in.forEach(function(input) {
input.wires.forEach(function(wire) {
var link = {source: input, sourcePort: 0, target: RED.nodes.node(wire.id) }
new_links.push(link);
RED.nodes.addLink(link);
});
});
subflow.out.forEach(function(output,i) {
output.wires.forEach(function(wire) {
var link = {source: RED.nodes.node(wire.id), sourcePort: wire.port , target: output }
new_links.push(link);
RED.nodes.addLink(link);
});
});
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for (i=0;i<removedLinks.length;i++) {
RED.nodes.removeLink(removedLinks[i]);
}
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for (i=0;i<selection.nodes.length;i++) {
n = selection.nodes[i];
if (/^link /.test(n.type)) {
n.links = n.links.filter(function(id) {
var isLocalLink = nodes.hasOwnProperty(id);
if (!isLocalLink) {
var otherNode = RED.nodes.node(id);
if (otherNode && otherNode.links) {
var i = otherNode.links.indexOf(n.id);
if (i > -1) {
otherNode.links.splice(i,1);
}
}
}
return isLocalLink;
});
}
n.z = subflow.id;
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}
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RED.history.push({
t:'createSubflow',
nodes:[subflowInstance.id],
links:new_links,
subflow: {
subflow: subflow
},
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activeWorkspace: RED.workspaces.active(),
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removedLinks: removedLinks,
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dirty:RED.nodes.dirty()
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});
RED.view.select(null);
RED.editor.validateNode(subflow);
RED.nodes.dirty(true);
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RED.view.redraw(true);
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}
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return {
init: init,
createSubflow: createSubflow,
convertToSubflow: convertToSubflow,
refresh: refresh,
removeInput: removeSubflowInput,
removeOutput: removeSubflowOutput
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}
})();