mirror of
https://github.com/node-red/node-red.git
synced 2023-10-10 13:36:53 +02:00
297 lines
13 KiB
JavaScript
297 lines
13 KiB
JavaScript
/**
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* Copyright 2013, 2016 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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RED.history = (function() {
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var undo_history = [];
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return {
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//TODO: this function is a placeholder until there is a 'save' event that can be listened to
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markAllDirty: function() {
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for (var i=0;i<undo_history.length;i++) {
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undo_history[i].dirty = true;
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}
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},
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list: function() {
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return undo_history
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},
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depth: function() {
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return undo_history.length;
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},
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push: function(ev) {
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undo_history.push(ev);
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},
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pop: function() {
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var ev = undo_history.pop();
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var i;
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var node;
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var subflow;
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var modifiedTabs = {};
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if (ev) {
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if (ev.t == 'add') {
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if (ev.nodes) {
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for (i=0;i<ev.nodes.length;i++) {
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node = RED.nodes.node(ev.nodes[i]);
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if (node.z) {
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modifiedTabs[node.z] = true;
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}
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RED.nodes.remove(ev.nodes[i]);
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}
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}
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if (ev.links) {
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for (i=0;i<ev.links.length;i++) {
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RED.nodes.removeLink(ev.links[i]);
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}
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}
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if (ev.workspaces) {
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for (i=0;i<ev.workspaces.length;i++) {
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RED.nodes.removeWorkspace(ev.workspaces[i].id);
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RED.workspaces.remove(ev.workspaces[i]);
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}
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}
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if (ev.subflows) {
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for (i=0;i<ev.subflows.length;i++) {
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RED.nodes.removeSubflow(ev.subflows[i]);
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RED.workspaces.remove(ev.subflows[i]);
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}
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}
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if (ev.subflow) {
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if (ev.subflow.instances) {
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ev.subflow.instances.forEach(function(n) {
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var node = RED.nodes.node(n.id);
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if (node) {
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node.changed = n.changed;
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node.dirty = true;
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}
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});
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}
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if (ev.subflow.hasOwnProperty('changed')) {
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subflow = RED.nodes.subflow(ev.subflow.id);
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if (subflow) {
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subflow.changed = ev.subflow.changed;
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}
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}
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}
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if (ev.removedLinks) {
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for (i=0;i<ev.removedLinks.length;i++) {
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RED.nodes.addLink(ev.removedLinks[i]);
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}
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}
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} else if (ev.t == "delete") {
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if (ev.workspaces) {
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for (i=0;i<ev.workspaces.length;i++) {
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RED.nodes.addWorkspace(ev.workspaces[i]);
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RED.workspaces.add(ev.workspaces[i]);
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}
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}
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if (ev.subflow && ev.subflow.subflow) {
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RED.nodes.addSubflow(ev.subflow.subflow);
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}
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if (ev.subflowInputs && ev.subflowInputs.length > 0) {
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subflow = RED.nodes.subflow(ev.subflowInputs[0].z);
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subflow.in.push(ev.subflowInputs[0]);
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subflow.in[0].dirty = true;
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}
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if (ev.subflowOutputs && ev.subflowOutputs.length > 0) {
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subflow = RED.nodes.subflow(ev.subflowOutputs[0].z);
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ev.subflowOutputs.sort(function(a,b) { return a.i-b.i});
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for (i=0;i<ev.subflowOutputs.length;i++) {
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var output = ev.subflowOutputs[i];
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subflow.out.splice(output.i,0,output);
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for (var j=output.i+1;j<subflow.out.length;j++) {
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subflow.out[j].i++;
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subflow.out[j].dirty = true;
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}
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RED.nodes.eachLink(function(l) {
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if (l.source.type == "subflow:"+subflow.id) {
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if (l.sourcePort >= output.i) {
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l.sourcePort++;
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}
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}
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});
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}
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}
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if (ev.subflow && ev.subflow.hasOwnProperty('instances')) {
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ev.subflow.instances.forEach(function(n) {
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var node = RED.nodes.node(n.id);
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if (node) {
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node.changed = n.changed;
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node.dirty = true;
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}
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});
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}
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if (subflow) {
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RED.nodes.filterNodes({type:"subflow:"+subflow.id}).forEach(function(n) {
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n.inputs = subflow.in.length;
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n.outputs = subflow.out.length;
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while (n.outputs > n.ports.length) {
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n.ports.push(n.ports.length);
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}
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n.resize = true;
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n.dirty = true;
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});
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}
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if (ev.nodes) {
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for (i=0;i<ev.nodes.length;i++) {
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RED.nodes.add(ev.nodes[i]);
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modifiedTabs[ev.nodes[i].z] = true;
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}
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}
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if (ev.links) {
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for (i=0;i<ev.links.length;i++) {
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RED.nodes.addLink(ev.links[i]);
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}
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}
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if (ev.changes) {
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for (i in ev.changes) {
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if (ev.changes.hasOwnProperty(i)) {
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node = RED.nodes.node(i);
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if (node) {
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for (var d in ev.changes[i]) {
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if (ev.changes[i].hasOwnProperty(d)) {
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node[d] = ev.changes[i][d];
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}
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}
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node.dirty = true;
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}
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}
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}
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}
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} else if (ev.t == "move") {
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for (i=0;i<ev.nodes.length;i++) {
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var n = ev.nodes[i];
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n.n.x = n.ox;
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n.n.y = n.oy;
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n.n.dirty = true;
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}
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// A move could have caused a link splice
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if (ev.links) {
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for (i=0;i<ev.links.length;i++) {
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RED.nodes.removeLink(ev.links[i]);
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}
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}
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if (ev.removedLinks) {
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for (i=0;i<ev.removedLinks.length;i++) {
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RED.nodes.addLink(ev.removedLinks[i]);
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}
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}
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} else if (ev.t == "edit") {
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for (i in ev.changes) {
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if (ev.changes.hasOwnProperty(i)) {
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if (ev.node._def.defaults[i].type) {
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// This is a config node property
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var currentConfigNode = RED.nodes.node(ev.node[i]);
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if (currentConfigNode) {
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currentConfigNode.users.splice(currentConfigNode.users.indexOf(ev.node),1);
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}
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var newConfigNode = RED.nodes.node(ev.changes[i]);
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if (newConfigNode) {
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newConfigNode.users.push(ev.node);
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}
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}
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ev.node[i] = ev.changes[i];
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}
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}
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if (ev.subflow) {
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if (ev.subflow.hasOwnProperty('inputCount')) {
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if (ev.node.in.length > ev.subflow.inputCount) {
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ev.node.in.splice(ev.subflow.inputCount);
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} else if (ev.subflow.inputs.length > 0) {
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ev.node.in = ev.node.in.concat(ev.subflow.inputs);
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}
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}
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if (ev.subflow.hasOwnProperty('outputCount')) {
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if (ev.node.out.length > ev.subflow.outputCount) {
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ev.node.out.splice(ev.subflow.outputCount);
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} else if (ev.subflow.outputs.length > 0) {
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ev.node.out = ev.node.out.concat(ev.subflow.outputs);
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}
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}
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if (ev.subflow.hasOwnProperty('instances')) {
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ev.subflow.instances.forEach(function(n) {
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var node = RED.nodes.node(n.id);
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if (node) {
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node.changed = n.changed;
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node.dirty = true;
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}
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});
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}
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RED.nodes.filterNodes({type:"subflow:"+ev.node.id}).forEach(function(n) {
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n.inputs = ev.node.in.length;
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n.outputs = ev.node.out.length;
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RED.editor.updateNodeProperties(n);
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});
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} else {
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RED.editor.updateNodeProperties(ev.node);
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RED.editor.validateNode(ev.node);
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}
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if (ev.links) {
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for (i=0;i<ev.links.length;i++) {
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RED.nodes.addLink(ev.links[i]);
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}
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}
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ev.node.dirty = true;
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ev.node.changed = ev.changed;
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} else if (ev.t == "createSubflow") {
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if (ev.nodes) {
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RED.nodes.filterNodes({z:ev.subflow.subflow.id}).forEach(function(n) {
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n.z = ev.activeWorkspace;
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n.dirty = true;
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});
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for (i=0;i<ev.nodes.length;i++) {
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RED.nodes.remove(ev.nodes[i]);
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}
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}
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if (ev.links) {
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for (i=0;i<ev.links.length;i++) {
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RED.nodes.removeLink(ev.links[i]);
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}
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}
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RED.nodes.removeSubflow(ev.subflow.subflow);
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RED.workspaces.remove(ev.subflow.subflow);
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if (ev.removedLinks) {
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for (i=0;i<ev.removedLinks.length;i++) {
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RED.nodes.addLink(ev.removedLinks[i]);
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}
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}
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} else if (ev.t == "reorder") {
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if (ev.order) {
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RED.workspaces.order(ev.order);
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}
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}
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Object.keys(modifiedTabs).forEach(function(id) {
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var subflow = RED.nodes.subflow(id);
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if (subflow) {
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RED.editor.validateNode(subflow);
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}
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});
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RED.nodes.dirty(ev.dirty);
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RED.view.redraw(true);
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RED.palette.refresh();
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RED.workspaces.refresh();
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RED.sidebar.config.refresh();
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}
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},
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peek: function() {
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return undo_history[undo_history.length-1];
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}
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}
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})();
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