mirror of
https://github.com/node-red/node-red.git
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320 lines
10 KiB
JavaScript
320 lines
10 KiB
JavaScript
/**
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* Copyright JS Foundation and other contributors, http://js.foundation
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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.group = (function() {
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var _groupEditTemplate = '<script type="text/x-red" data-template-name="group">'+
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'<div class="form-row">'+
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'<label for="node-input-name" data-i18n="[append]editor:common.label.name"><i class="fa fa-tag"></i> </label>'+
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'<input type="text" id="node-input-name" data-i18n="[placeholder]common.label.name">'+
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'</div>'+
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'<div class="form-row">'+
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'<label for="node-input-style-stroke" data-i18n="[append]editor:group.label.stroke">Stroke</label>'+
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'<input type="text" id="node-input-style-stroke">'+
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'</div>'+
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'<div class="form-row">'+
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'<label for="node-input-style-fill" data-i18n="[append]editor:group.label.fill">Fill</label>'+
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'<input type="text" id="node-input-style-fill">'+
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'</div>'+
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'</script>';
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var groupDef = {
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defaults:{
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name:{value:""},
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style:{value:{}},
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nodes:{value:[]}
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},
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category: "config",
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oneditprepare: function() {
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var style = this.style || {};
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$("#node-input-style-stroke").val(style.stroke || "#eeeeee")
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$("#node-input-style-fill").val(style.fill || "none")
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},
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oneditresize: function(size) {
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},
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oneditsave: function() {
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this.style.stroke = $("#node-input-style-stroke").val();
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this.style.fill = $("#node-input-style-fill").val();
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},
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set:{
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module: "node-red"
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}
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}
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function init() {
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RED.actions.add("core:group-selection", function() { groupSelection() })
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RED.actions.add("core:ungroup-selection", function() { ungroupSelection() })
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RED.actions.add("core:merge-selection-to-group", function() { mergeSelection() })
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RED.actions.add("core:remove-selection-from-group", function() { removeSelection() })
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$(_groupEditTemplate).appendTo("#red-ui-editor-node-configs");
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}
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function groupSelection() {
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var selection = RED.view.selection();
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if (selection.nodes) {
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var group = createGroup(selection.nodes);
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if (group) {
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RED.view.select({nodes:[group]})
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}
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}
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}
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function ungroupSelection() {
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var selection = RED.view.selection();
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if (selection.nodes) {
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var newSelection = [];
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groups = selection.nodes.filter(function(n) { return n.type === "group" });
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groups.forEach(function(g) {
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newSelection = newSelection.concat(ungroup(g))
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})
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RED.view.select({nodes:newSelection})
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}
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}
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function ungroup(g) {
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var nodes = [];
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var parentGroup = RED.nodes.group(g.g);
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g.nodes.forEach(function(n) {
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nodes.push(n);
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if (parentGroup) {
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// Move nodes to parent group
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n.g = parentGroup.id;
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parentGroup.nodes.push(n);
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parentGroup.dirty = true;
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n.dirty = true;
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} else {
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delete n.g;
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}
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})
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RED.nodes.removeGroup(g);
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return nodes;
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}
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function mergeSelection() {
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// TODO: this currently creates an entirely new group. Need to merge properties
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// of any existing group
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var selection = RED.view.selection();
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if (selection.nodes) {
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var nodes = [];
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var n;
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var parentGroup;
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// First pass, check they are all in the same parent
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// TODO: DRY mergeSelection,removeSelection,...
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for (var i=0; i<selection.nodes.length; i++) {
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n = selection.nodes[i];
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if (i === 0) {
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parentGroup = n.g;
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} else if (n.g !== parentGroup) {
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RED.notify("Cannot merge nodes from different groups","error");
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return;
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}
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}
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// Second pass, ungroup any groups in the selection and add their contents
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// to the selection
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for (var i=0; i<selection.nodes.length; i++) {
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n = selection.nodes[i];
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if (n.type === "group") {
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nodes = nodes.concat(ungroup(n));
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} else {
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nodes.push(n);
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}
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n.dirty = true;
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}
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// Finally, create the new group
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var group = createGroup(nodes);
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if (group) {
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RED.view.select({nodes:[group]})
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}
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}
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}
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function removeSelection() {
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var selection = RED.view.selection();
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if (selection.nodes) {
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var nodes = [];
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var n;
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var parentGroup;
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// First pass, check they are all in the same parent
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// TODO: DRY mergeSelection,removeSelection,...
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for (var i=0; i<selection.nodes.length; i++) {
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n = selection.nodes[i];
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if (i === 0) {
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parentGroup = n.g;
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} else if (n.g !== parentGroup) {
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RED.notify("Cannot merge nodes from different groups","error");
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return;
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}
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}
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if (parentGroup) {
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parentGroup = RED.nodes.group(parentGroup);
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var grandparentGroup = RED.nodes.group(parentGroup.g);
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for (var i=0; i<selection.nodes.length; i++) {
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n = selection.nodes[i];
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n.dirty = true;
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nodes.push(n);
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var index = parentGroup.nodes.indexOf(n);
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parentGroup.nodes.splice(index,1);
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if (parentGroup.g) {
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n.g = parentGroup.g
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grandparentGroup.nodes.push(n);
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grandparentGroup.dirty = true;
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} else {
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delete n.g;
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}
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}
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RED.view.select({nodes:nodes})
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}
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}
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}
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function createGroup(nodes) {
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if (nodes.length === 0) {
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return;
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}
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// nodes is an array
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// each node must be on the same tab (z)
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var group = {
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id: RED.nodes.id(),
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type: 'group',
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nodes: [],
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style: {
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stroke: "#999",
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fill: "none"
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},
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x: Number.POSITIVE_INFINITY,
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y: Number.POSITIVE_INFINITY,
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w: 0,
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h: 0,
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_def: RED.group.def
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}
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try {
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addToGroup(group,nodes);
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} catch(err) {
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RED.notify(err,"error");
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return;
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}
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group.z = nodes[0].z;
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RED.nodes.addGroup(group);
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return group;
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}
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function addToGroup(group,nodes) {
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if (!Array.isArray(nodes)) {
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nodes = [nodes];
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}
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var i,n,z;
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var g;
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// First pass - validate we can safely add these nodes to the group
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for (i=0;i<nodes.length;i++) {
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n = nodes[i]
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if (!n.z) {
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throw new Error("Cannot add node without a z property to a group")
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}
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if (!z) {
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z = n.z;
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} else if (z !== n.z) {
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throw new Error("Cannot create group using nodes with different z properties")
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}
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if (n.g) {
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// This is already in a group.
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// - check they are all in the same group
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if (!g) {
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if (i!==0) {
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// TODO: this might be ok when merging groups
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throw new Error("Cannot create group using nodes from different groups")
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}
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g = n.g
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}
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}
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if (g !== n.g) {
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throw new Error("Cannot create group using nodes from different groups")
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}
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}
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if (g) {
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g = RED.nodes.group(g);
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g.nodes.push(group);
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g.dirty = true;
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group.g = g.id;
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}
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// Second pass - add them to the group
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for (i=0;i<nodes.length;i++) {
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n = nodes[i];
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if (g && n.g === g.id) {
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var ni = g.nodes.indexOf(n);
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if (ni > -1) {
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g.nodes.splice(ni,1)
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}
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}
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n.g = group.id;
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n.dirty = true;
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group.nodes.push(n);
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group.x = Math.min(group.x,n.x-n.w/2-25-((n._def.button && n._def.align!=="right")?20:0));
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group.y = Math.min(group.y,n.y-n.h/2-25);
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group.w = Math.max(group.w,n.x+n.w/2+25+((n._def.button && n._def.align=="right")?20:0) - group.x);
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group.h = Math.max(group.h,n.y+n.h/2+25-group.y);
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}
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}
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function getNodes(group,recursive) {
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var nodes = [];
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group.nodes.forEach(function(n) {
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if (!recursive || n.type !== 'group') {
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nodes.push(n);
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} else {
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nodes = nodes.concat(getNodes(n,recursive))
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}
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})
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return nodes;
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}
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function groupContains(group,item) {
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if (item.g === group.id) {
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return true;
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}
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for (var i=0;i<group.nodes.length;i++) {
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if (group.nodes[i].type === "group") {
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if (groupContains(group.nodes[i],item)) {
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return true;
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}
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}
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}
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return false;
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}
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function getRootGroup(group) {
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if (!group.g) {
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return group;
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}
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return getRootGroup(RED.nodes.group(group.g))
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}
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return {
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def: groupDef,
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init: init,
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createGroup: createGroup,
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addToGroup: addToGroup,
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getNodes: getNodes,
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contains: groupContains
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}
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})();
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