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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() {
function getSubflow() {
return RED.nodes.subflow(RED.workspaces.active());
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}
function findAvailableSubflowIOPosition(subflow) {
var pos = {x:70,y:70};
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;
}
function addSubflowInput() {
var subflow = RED.nodes.subflow(RED.workspaces.active());
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var position = findAvailableSubflowIOPosition(subflow);
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;
RED.nodes.eachNode(function(n) {
if (n.type == "subflow:"+subflow.id) {
n.changed = true;
n.inputs = subflow.in.length;
RED.editor.updateNodeProperties(n);
}
});
var historyEvent = {
t:'edit',
node:subflow,
dirty:wasDirty,
changed:wasChanged,
subflow: {
inputCount: oldInCount
}
};
RED.history.push(historyEvent);
$("#workspace-subflow-add-input").toggleClass("disabled",true);
RED.view.select();
}
function addSubflowOutput(id) {
var subflow = RED.nodes.subflow(RED.workspaces.active());
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var position = findAvailableSubflowIOPosition(subflow);
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;
RED.nodes.eachNode(function(n) {
if (n.type == "subflow:"+subflow.id) {
n.changed = true;
n.outputs = subflow.out.length;
RED.editor.updateNodeProperties(n);
}
});
var historyEvent = {
t:'edit',
node:subflow,
dirty:wasDirty,
changed:wasChanged,
subflow: {
outputCount: oldOutCount
}
};
RED.history.push(historyEvent);
RED.view.select();
}
function init() {
$("#workspace-subflow-edit").click(function(event) {
RED.editor.editSubflow(RED.nodes.subflow(RED.workspaces.active()));
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event.preventDefault();
});
$("#workspace-subflow-add-input").click(function(event) {
event.preventDefault();
if ($(this).hasClass("disabled")) {
return;
}
addSubflowInput();
});
$("#workspace-subflow-add-output").click(function(event) {
event.preventDefault();
if ($(this).hasClass("disabled")) {
return;
}
addSubflowOutput();
});
$("#workspace-subflow-delete").click(function(event) {
event.preventDefault();
var removedNodes = [];
var removedLinks = [];
var startDirty = RED.nodes.dirty();
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RED.nodes.eachNode(function(n) {
if (n.type == "subflow:"+getSubflow().id) {
removedNodes.push(n);
}
if (n.z == getSubflow().id) {
removedNodes.push(n);
}
});
for (var i=0;i<removedNodes.length;i++) {
var rmlinks = RED.nodes.remove(removedNodes[i].id);
removedLinks = removedLinks.concat(rmlinks);
}
var activeSubflow = getSubflow();
RED.nodes.removeSubflow(activeSubflow);
RED.history.push({
t:'delete',
nodes:removedNodes,
links:removedLinks,
subflow: activeSubflow,
dirty:startDirty
});
RED.workspaces.remove(activeSubflow);
RED.nodes.dirty(true);
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RED.view.redraw();
});
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RED.view.on("selection-changed",function(selection) {
if (!selection.nodes) {
RED.menu.setDisabled("btn-convert-subflow",true);
} else {
RED.menu.setDisabled("btn-convert-subflow",false);
}
});
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}
function createSubflow() {
var lastIndex = 0;
RED.nodes.eachSubflow(function(sf) {
var m = (new RegExp("^Subflow (\\d+)$")).exec(sf.name);
if (m) {
lastIndex = Math.max(lastIndex,m[1]);
}
});
var name = "Subflow "+(lastIndex+1);
var subflowId = RED.nodes.id();
var subflow = {
type:"subflow",
id:subflowId,
name:name,
in: [],
out: []
};
RED.nodes.addSubflow(subflow);
RED.history.push({
t:'createSubflow',
subflow: subflow,
dirty:RED.nodes.dirty()
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});
RED.workspaces.show(subflowId);
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}
function convertToSubflow() {
var selection = RED.view.selection();
if (!selection.nodes) {
RED.notify("<strong>Cannot create subflow</strong>: no nodes selected","error");
return;
}
var i;
var nodes = {};
var new_links = [];
var removedLinks = [];
var candidateInputs = [];
var candidateOutputs = [];
var boundingBox = [selection.nodes[0].x,
selection.nodes[0].y,
selection.nodes[0].x,
selection.nodes[0].y];
for (i=0;i<selection.nodes.length;i++) {
var n = selection.nodes[i];
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)
]
}
var center = [(boundingBox[2]+boundingBox[0]) / 2,(boundingBox[3]+boundingBox[1]) / 2];
RED.nodes.eachLink(function(link) {
if (nodes[link.source.id] && nodes[link.target.id]) {
// A link wholely within the selection
}
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);
removedLinks.push(link);
}
});
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});
if (candidateInputs.length > 1) {
RED.notify("<strong>Cannot create subflow</strong>: multiple inputs to selection","error");
return;
}
//if (candidateInputs.length == 0) {
// RED.notify("<strong>Cannot create subflow</strong>: no input to selection","error");
// return;
//}
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]);
}
});
var name = "Subflow "+(lastIndex+1);
var subflowId = RED.nodes.id();
var subflow = {
type:"subflow",
id:subflowId,
name:name,
in: candidateInputs.map(function(v,i) { var index = i; return {
type:"subflow",
direction:"in",
x:v.target.x-(v.target.w/2)-80,
y:v.target.y,
z:subflowId,
i:index,
id:RED.nodes.id(),
wires:[{id:v.target.id}]
}}),
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}]
}})
};
RED.nodes.addSubflow(subflow);
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);
candidateInputs.forEach(function(l) {
var link = {source:l.source, sourcePort:l.sourcePort, target: subflowInstance};
new_links.push(link);
RED.nodes.addLink(link);
});
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);
});
});
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);
});
});
for (i=0;i<removedLinks.length;i++) {
RED.nodes.removeLink(removedLinks[i]);
}
for (i=0;i<selection.nodes.length;i++) {
selection.nodes[i].z = subflow.id;
}
RED.history.push({
t:'createSubflow',
nodes:[subflowInstance.id],
links:new_links,
subflow: subflow,
activeWorkspace: RED.workspaces.active(),
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removedLinks: removedLinks,
dirty:RED.nodes.dirty()
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});
RED.editor.validateNode(subflow);
RED.nodes.dirty(true);
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RED.view.redraw(true);
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}
return {
init: init,
createSubflow: createSubflow,
convertToSubflow: convertToSubflow
}
})();