feat: add copy/paste support for nodes

src/graph-builder/graph-core/3-component.js

@@ -267,6 +267,31 @@ class GraphComponent extends GraphCanvas {
         }
     }
 
+    copySelected() {
+        const selected = this.cy.$('node[type="ordin"]:selected');
+        return selected.map((node) => ({
+            label: node.data('label'),
+            style: this.getStyle(node.id()),
+            position: { ...node.position() },
+        }));
+    }
+
+    pasteClipboard(nodes) {
+        if (!nodes.length) return;
+        const tid = this.getTid();
+        nodes.forEach((node) => {
+            this.addNode(
+                node.label,
+                node.style,
+                'ordin',
+                { x: node.position.x + 20, y: node.position.y + 20 },
+                {},
+                undefined,
+                tid,
+            );
+        });
+    }
+
     validiateNode(label, style, id, type) {
         if (id) {
             const node = this.getById(id);

src/reducer/actionType.js

@@ -46,6 +46,7 @@ const actionType = {
     SET_LOGS_MESSAGE: 'SET_LOGS_MESSAGE',
     SET_GRAPH_INSTANCE: 'SET_GRAPH_INSTANCE',
     TOGGLE_DARK_MODE: 'TOGGLE_DARK_MODE',
+    SET_CLIPBOARD: 'SET_CLIPBOARD',
 };
 
 export default zealit(actionType);

src/reducer/initialState.js

@@ -39,6 +39,7 @@ const initialState = {
     logs: false,
     logsmessage: '',
     darkMode: false,
+    clipboard: [],
 };
 
 const initialGraphState = {

src/reducer/reducer.js

@@ -260,6 +260,10 @@ const reducer = (state, action) => {
         return { ...state, darkMode: !state.darkMode };
     }
 
+    case T.SET_CLIPBOARD: {
+        return { ...state, clipboard: action.payload };
+    }
+
     default:
         return state;
     }

src/toolbarActions/toolbarFunctions.js

@@ -178,6 +178,17 @@ const redo = (state) => {
     if (getGraphFun(state)) getGraphFun(state).redo();
 };
 
+const copySelected = (state, dispatcher) => {
+    if (!getGraphFun(state)) return;
+    const nodes = getGraphFun(state).copySelected();
+    if (nodes.length) dispatcher({ type: T.SET_CLIPBOARD, payload: nodes });
+};
+
+const pasteClipboard = (state) => {
+    if (!getGraphFun(state) || !state.clipboard.length) return;
+    getGraphFun(state).pasteClipboard(state.clipboard);
+};
+
 const openShareModal = (state, setState) => {
     setState({ type: T.SET_SHARE_MODAL, payload: true });
 };
@@ -202,5 +213,6 @@ export {
     createNode, editElement, deleteElem, downloadImg, saveAction, saveGraphMLFile,
     createFile, readFile, readTextFile, newProject, clearAll, editDetails, undo, redo,
     openShareModal, openSettingModal, viewHistory, resetAfterClear, toggleLogs,
+    copySelected, pasteClipboard,
     toggleServer, optionModalToggle, contribute,
 };

src/toolbarActions/toolbarList.js

@@ -2,6 +2,7 @@
 import {
     FaSave, FaUndo, FaRedo, FaTrash, FaFileImport, FaPlus, FaDownload, FaEdit, FaRegTimesCircle, FaHistory,
     FaHammer, FaBug, FaBomb, FaToggleOn, FaThermometerEmpty, FaTrashRestore, FaCogs, FaPencilAlt, FaTerminal,
+    FaCopy, FaPaste,
 } from 'react-icons/fa';
 
 import {
@@ -12,7 +13,7 @@ import {
 import {
     createNode, editElement, deleteElem, downloadImg, saveAction, saveGraphMLFile,
     createFile, readFile, clearAll, undo, redo, viewHistory, resetAfterClear,
-    toggleServer, optionModalToggle, toggleLogs, contribute,
+    toggleServer, optionModalToggle, toggleLogs, contribute, copySelected, pasteClipboard,
     // openSettingModal,
 } from './toolbarFunctions';
 
@@ -117,6 +118,25 @@ const toolbarList = (state, dispatcher) => [
         hotkey: 'Delete,Backspace,Del,Clear',
     },
     { type: 'vsep' },
+    {
+        type: 'action',
+        text: 'Copy',
+        icon: FaCopy,
+        action: copySelected,
+        active: state.curGraphInstance && state.eleSelected,
+        visibility: true,
+        hotkey: 'Ctrl+C',
+    },
+    {
+        type: 'action',
+        text: 'Paste',
+        icon: FaPaste,
+        action: pasteClipboard,
+        active: state.curGraphInstance && state.clipboard.length > 0,
+        visibility: true,
+        hotkey: 'Ctrl+V',
+    },
+    { type: 'vsep' },
     {
         type: 'action',
         text: 'History',