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92 lines
2.6 KiB
92 lines
2.6 KiB
/** Modified from original Node-Red source, for audio system visualization
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* vim: set ts=4:
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* Copyright 2013 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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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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if (ev) {
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if (ev.t == 'add') {
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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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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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for (i=0;i<ev.workspaces.length;i++) {
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RED.nodes.removeWorkspace(ev.workspaces[i].id);
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RED.view.removeWorkspace(ev.workspaces[i]);
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}
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} else if (ev.t == "delete") {
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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.view.addWorkspace(ev.workspaces[i]);
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}
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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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}
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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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} 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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} 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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ev.node[i] = ev.changes[i];
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}
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}
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RED.editor.updateNodeProperties(ev.node);
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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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RED.editor.validateNode(ev.node);
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ev.node.dirty = true;
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ev.node.changed = ev.changed;
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}
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RED.view.dirty(ev.dirty);
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RED.view.redraw();
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}
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}
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}
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})();
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RED.validators = {
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number: function(){return function(v) { return v!=='' && !isNaN(v);}},
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regex: function(re){return function(v) { return re.test(v);}}
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};
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