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import { css, PropertyValueMap, unsafeCSS } from 'lit';
import { property, state } from 'lit/decorators.js';
import {
FlowDefinition,
FlowPosition,
Action,
Node,
NodeUI
} from '../store/flow-definition';
import { getStore } from '../store/Store';
import { AppState, fromStore, zustand } from '../store/AppState';
import { RapidElement } from '../RapidElement';
import { repeat } from 'lit-html/directives/repeat.js';
import { CustomEventType } from '../interfaces';
import { Plumber } from './Plumber';
import { CanvasNode } from './CanvasNode';
import { Dialog } from '../layout/Dialog';
import { Connection } from '@jsplumb/browser-ui';
export function snapToGrid(value: number): number {
const snapped = Math.round(value / 20) * 20;
return Math.max(snapped, 0);
}
export function findNodeForExit(
definition: FlowDefinition,
exitUuid: string
): string | null {
for (const node of definition.nodes) {
const exit = node.exits.find((e) => e.uuid === exitUuid);
if (exit) {
return node.uuid;
}
}
return null;
}
const SAVE_QUIET_TIME = 500;
export interface DraggableItem {
uuid: string;
position: FlowPosition;
element: HTMLElement;
type: 'node' | 'sticky';
}
export interface SelectionBox {
startX: number;
startY: number;
endX: number;
endY: number;
}
const DRAG_THRESHOLD = 5;
export class Editor extends RapidElement {
// unfortunately, jsplumb requires that we be in light DOM
createRenderRoot() {
return this;
}
// this is the master plumber
private plumber: Plumber;
// timer for debounced saving
private saveTimer: number | null = null;
@property({ type: String })
public flow: string;
@property({ type: String })
public version: string;
@fromStore(zustand, (state: AppState) => state.flowDefinition)
private definition!: FlowDefinition;
@fromStore(zustand, (state: AppState) => state.canvasSize)
private canvasSize!: { width: number; height: number };
@fromStore(zustand, (state: AppState) => state.dirtyDate)
private dirtyDate!: Date;
// Drag state
@state()
private isDragging = false;
private isMouseDown = false;
private dragStartPos = { x: 0, y: 0 };
// Public getter for drag state
public get dragging(): boolean {
return this.isDragging;
}
@state()
private currentDragItem: DraggableItem | null = null;
private startPos = { left: 0, top: 0 };
// Selection state
@state()
private selectedItems: Set<string> = new Set();
@state()
private isSelecting = false;
@state()
private selectionBox: SelectionBox | null = null;
@state()
private targetId: string | null = null;
@state()
private sourceId: string | null = null;
@state()
private dragFromNodeId: string | null = null;
@state()
private isValidTarget = true;
// NodeEditor state - handles both node and action editing
@state()
private editingNode: Node | null = null;
@state()
private editingNodeUI: NodeUI | null = null;
@state()
private editingAction: Action | null = null;
private canvasMouseDown = false;
// Bound event handlers to maintain proper 'this' context
private boundMouseMove = this.handleMouseMove.bind(this);
private boundMouseUp = this.handleMouseUp.bind(this);
private boundGlobalMouseDown = this.handleGlobalMouseDown.bind(this);
private boundKeyDown = this.handleKeyDown.bind(this);
private boundCanvasDoubleClick = this.handleCanvasDoubleClick.bind(this);
static get styles() {
return css`
#editor {
overflow: scroll;
flex: 1;
}
#grid {
position: relative;
background-color: #f9f9f9;
background-image: radial-gradient(
circle,
rgba(61, 177, 255, 0.3) 1px,
transparent 1px
);
background-size: 20px 20px;
background-position: 10px 10px;
box-shadow: inset -5px 0 10px rgba(0, 0, 0, 0.05);
border-top: 1px solid #e0e0e0;
width: 100%;
display: flex;
}
#canvas {
position: relative;
padding: 0px;
flex-grow: 1;
margin: 20px;
}
#canvas > .draggable {
position: absolute;
z-index: 100;
}
#canvas > .dragging {
z-index: 99999 !important;
}
body .jtk-endpoint {
width: initial;
height: initial;
}
.jtk-endpoint {
z-index: 600;
opacity: 0;
}
.plumb-source {
z-index: 600;
cursor: pointer;
opacity: 0;
}
.plumb-source.connected {
border-radius: 50%;
pointer-events: none;
}
.plumb-source circle {
fill: purple;
}
.plumb-target {
z-index: 600;
opacity: 0;
cursor: pointer;
fill: transparent;
}
body svg.jtk-connector.plumb-connector path {
stroke: var(--color-connectors) !important;
stroke-width: 3px;
}
body .plumb-connector {
z-index: 10 !important;
}
body .plumb-connector .plumb-arrow {
fill: var(--color-connectors);
stroke: var(--color-connectors);
stroke-width: 0px !important;
margin-top: 6px;
z-index: 10;
}
body svg.jtk-connector.jtk-hover path {
stroke: var(--color-success) !important;
stroke-width: 3px;
}
body .plumb-connector.jtk-hover .plumb-arrow {
fill: var(--color-success) !important;
stroke-width: 0px;
z-index: 10;
}
/* Connection dragging feedback */
body svg.jtk-connector.jtk-dragging {
z-index: 99999 !important;
}
.katavorio-drag-no-select svg.jtk-connector path,
.katavorio-drag-no-select svg.jtk-endpoint path {
pointer-events: none !important;
border: 1px solid purple;
}
/* Connection target feedback */
temba-flow-node.connection-target-valid {
outline: 3px solid var(--color-success, #22c55e) !important;
outline-offset: 2px;
border-radius: var(--curvature);
}
temba-flow-node.connection-target-invalid {
outline: 3px solid var(--color-error, #ef4444) !important;
outline-offset: 2px;
border-radius: var(--curvature);
}
/* Selection box styles */
.selection-box {
position: absolute;
border: 2px dashed #6298f0ff;
background-color: rgba(59, 130, 246, 0.1);
z-index: 9999;
pointer-events: none;
}
/* Selected item styles */
.draggable.selected {
outline: 3px solid #6298f0ff;
outline-offset: 0px;
border-radius: var(--curvature);
}
.jtk-floating-endpoint {
pointer-events: none;
}
`;
}
constructor() {
super();
}
protected firstUpdated(
changes: PropertyValueMap<any> | Map<PropertyKey, unknown>
): void {
super.firstUpdated(changes);
this.plumber = new Plumber(this.querySelector('#canvas'));
this.setupGlobalEventListeners();
if (changes.has('flow')) {
getStore().getState().fetchRevision(`/flow/revisions/${this.flow}`);
}
this.plumber.on('connection:drag', (info: Connection) => {
this.dragFromNodeId = document
.getElementById(info.sourceId)
.closest('.node').id;
this.sourceId = info.sourceId;
});
this.plumber.on('connection:abort', () => {
this.makeConnection();
});
this.plumber.on('connection:detach', () => {
this.makeConnection();
});
}
private makeConnection() {
if (this.sourceId && this.targetId && this.isValidTarget) {
this.plumber.connectIds(
this.dragFromNodeId,
this.sourceId,
this.targetId
);
getStore()
.getState()
.updateConnection(this.dragFromNodeId, this.sourceId, this.targetId);
setTimeout(() => {
this.plumber.repaintEverything();
}, 100);
}
// Clean up visual feedback
document.querySelectorAll('temba-flow-node').forEach((node) => {
node.classList.remove(
'connection-target-valid',
'connection-target-invalid'
);
});
this.sourceId = null;
this.targetId = null;
this.dragFromNodeId = null;
this.isValidTarget = true;
}
protected updated(
changes: PropertyValueMap<any> | Map<PropertyKey, unknown>
): void {
super.updated(changes);
if (changes.has('canvasSize')) {
// console.log('Setting canvas size', this.canvasSize);
}
if (changes.has('definition')) {
this.updateCanvasSize();
}
if (changes.has('dirtyDate')) {
if (this.dirtyDate) {
this.debouncedSave();
}
}
}
private debouncedSave(): void {
// Clear any existing timer
if (this.saveTimer !== null) {
clearTimeout(this.saveTimer);
}
this.saveTimer = window.setTimeout(() => {
const now = new Date();
const timeSinceLastChange = now.getTime() - this.dirtyDate.getTime();
if (timeSinceLastChange >= SAVE_QUIET_TIME) {
this.saveChanges();
this.saveTimer = null;
} else {
this.debouncedSave();
}
}, SAVE_QUIET_TIME);
}
private saveChanges(): void {
// post the flow definition to the server
getStore()
.postJSON(`/flow/revisions/${this.flow}`, this.definition)
.then((response) => {
// Update flow info with the response data
if (response.json && response.json.info) {
getStore().getState().setFlowInfo(response.json.info);
}
})
.catch((error) => {
console.error('Failed to save flow:', error);
});
getStore().getState().setDirtyDate(null);
}
disconnectedCallback(): void {
super.disconnectedCallback();
if (this.saveTimer !== null) {
clearTimeout(this.saveTimer);
this.saveTimer = null;
}
document.removeEventListener('mousemove', this.boundMouseMove);
document.removeEventListener('mouseup', this.boundMouseUp);
document.removeEventListener('mousedown', this.boundGlobalMouseDown);
document.removeEventListener('keydown', this.boundKeyDown);
const canvas = this.querySelector('#canvas');
if (canvas) {
canvas.removeEventListener('dblclick', this.boundCanvasDoubleClick);
}
}
private setupGlobalEventListeners(): void {
document.addEventListener('mousemove', this.boundMouseMove);
document.addEventListener('mouseup', this.boundMouseUp);
document.addEventListener('mousedown', this.boundGlobalMouseDown);
document.addEventListener('keydown', this.boundKeyDown);
const canvas = this.querySelector('#canvas');
if (canvas) {
canvas.addEventListener('dblclick', this.boundCanvasDoubleClick);
}
// Listen for action edit requests from flow nodes
this.addEventListener(
CustomEventType.ActionEditRequested,
this.handleActionEditRequested.bind(this)
);
// Listen for node edit requests from flow nodes
this.addEventListener(
CustomEventType.NodeEditRequested,
this.handleNodeEditRequested.bind(this)
);
}
private getPosition(uuid: string, type: 'node' | 'sticky'): FlowPosition {
if (type === 'node') {
return this.definition._ui.nodes[uuid]?.position;
} else {
return this.definition._ui.stickies?.[uuid]?.position;
}
}
private handleMouseDown(event: MouseEvent): void {
// ignore right clicks
if (event.button !== 0) return;
const element = event.currentTarget as HTMLElement;
// Only start dragging if clicking on the element itself, not on exits or other interactive elements
const target = event.target as HTMLElement;
if (target.classList.contains('exit') || target.closest('.exit')) {
return;
}
const uuid = element.getAttribute('uuid');
const type = element.tagName === 'TEMBA-FLOW-NODE' ? 'node' : 'sticky';
const position = this.getPosition(uuid, type);
if (!position) return;
// If clicking on a non-selected item, clear selection unless Ctrl/Cmd is held
if (!this.selectedItems.has(uuid) && !event.ctrlKey && !event.metaKey) {
this.selectedItems.clear();
// Don't add single items to selection - single clicks just clear existing selection
} else if (!this.selectedItems.has(uuid)) {
// Add this item to selection only if Ctrl/Cmd is held
this.selectedItems.add(uuid);
}
// Always set up drag state regardless of selection status
// This allows single nodes to be dragged without being selected
this.isMouseDown = true;
this.dragStartPos = { x: event.clientX, y: event.clientY };
this.startPos = { left: position.left, top: position.top };
this.currentDragItem = {
uuid,
position,
element,
type
};
event.preventDefault();
event.stopPropagation();
}
private handleGlobalMouseDown(event: MouseEvent): void {
// ignore right clicks
if (event.button !== 0) return;
// Check if the click is within our canvas
const canvasRect = this.querySelector('#grid')?.getBoundingClientRect();
if (!canvasRect) return;
const isWithinCanvas =
event.clientX >= canvasRect.left &&
event.clientX <= canvasRect.right &&
event.clientY >= canvasRect.top &&
event.clientY <= canvasRect.bottom;
if (!isWithinCanvas) return;
// Check if we clicked on a draggable item (node or sticky)
const target = event.target as HTMLElement;
const clickedOnDraggable = target.closest('.draggable');
if (clickedOnDraggable) {
// This is handled by the individual item mousedown handlers
return;
}
// We clicked on empty canvas space, start selection
this.handleCanvasMouseDown(event);
}
private handleCanvasMouseDown(event: MouseEvent): void {
const target = event.target as HTMLElement;
if (target.id === 'canvas' || target.id === 'grid') {
// Ignore clicks on exits
// Start selection box
this.canvasMouseDown = true;
this.dragStartPos = { x: event.clientX, y: event.clientY };
const canvasRect = this.querySelector('#canvas')?.getBoundingClientRect();
if (canvasRect) {
// Clear current selection
this.selectedItems.clear();
const relativeX = event.clientX - canvasRect.left;
const relativeY = event.clientY - canvasRect.top;
this.selectionBox = {
startX: relativeX,
startY: relativeY,
endX: relativeX,
endY: relativeY
};
}
event.preventDefault();
}
}
private handleKeyDown(event: KeyboardEvent): void {
if (event.key === 'Delete' || event.key === 'Backspace') {
if (this.selectedItems.size > 0) {
this.showDeleteConfirmation();
}
}
if (event.key === 'Escape') {
this.selectedItems.clear();
this.requestUpdate();
}
}
private showDeleteConfirmation(): void {
const itemCount = this.selectedItems.size;
const itemType = itemCount === 1 ? 'item' : 'items';
// Create and show confirmation dialog
const dialog = document.createElement('temba-dialog') as Dialog;
dialog.header = 'Delete Items';
dialog.primaryButtonName = 'Delete';
dialog.cancelButtonName = 'Cancel';
dialog.destructive = true;
dialog.innerHTML = `<div style="padding: 20px;">Are you sure you want to delete ${itemCount} ${itemType}?</div>`;
dialog.addEventListener('temba-button-clicked', (event: any) => {
if (event.detail.button.name === 'Delete') {
this.deleteSelectedItems();
dialog.open = false;
}
});
// Add to document and show
document.body.appendChild(dialog);
dialog.open = true;
// Clean up dialog when closed
dialog.addEventListener('temba-dialog-hidden', () => {
document.body.removeChild(dialog);
});
}
private deleteNodes(uuids: string[]): void {
// Clean up jsPlumb connections for nodes before removing them
uuids.forEach((uuid) => {
this.plumber.removeNodeConnections(uuid);
});
// Now remove them from the definition
if (uuids.length > 0 && this.plumber) {
getStore().getState().removeNodes(uuids);
}
}
private deleteSelectedItems(): void {
const nodes = Array.from(this.selectedItems).filter((uuid) =>
this.definition.nodes.some((node) => node.uuid === uuid)
);
this.deleteNodes(Array.from(nodes));
const stickies = Array.from(this.selectedItems).filter(
(uuid) => this.definition._ui?.stickies?.[uuid]
);
getStore().getState().removeStickyNotes(stickies);
// Clear selection
this.selectedItems.clear();
}
private updateSelectionBox(event: MouseEvent): void {
if (!this.selectionBox || !this.canvasMouseDown) return;
const canvasRect = this.querySelector('#canvas')?.getBoundingClientRect();
if (!canvasRect) return;
const relativeX = event.clientX - canvasRect.left;
const relativeY = event.clientY - canvasRect.top;
this.selectionBox = {
...this.selectionBox,
endX: relativeX,
endY: relativeY
};
// Update selected items based on selection box
this.updateSelectedItemsFromBox();
}
private updateSelectedItemsFromBox(): void {
if (!this.selectionBox) return;
const newSelection = new Set<string>();
const boxLeft = Math.min(this.selectionBox.startX, this.selectionBox.endX);
const boxTop = Math.min(this.selectionBox.startY, this.selectionBox.endY);
const boxRight = Math.max(this.selectionBox.startX, this.selectionBox.endX);
const boxBottom = Math.max(
this.selectionBox.startY,
this.selectionBox.endY
);
// Check nodes
this.definition?.nodes.forEach((node) => {
const nodeElement = this.querySelector(`[id="${node.uuid}"]`);
if (nodeElement) {
const position = this.definition._ui?.nodes[node.uuid]?.position;
if (position) {
const rect = nodeElement.getBoundingClientRect();
const canvasRect =
this.querySelector('#canvas')?.getBoundingClientRect();
if (canvasRect) {
const nodeLeft = position.left;
const nodeTop = position.top;
const nodeRight = nodeLeft + rect.width;
const nodeBottom = nodeTop + rect.height;
// Check if selection box intersects with node
if (
boxLeft < nodeRight &&
boxRight > nodeLeft &&
boxTop < nodeBottom &&
boxBottom > nodeTop
) {
newSelection.add(node.uuid);
}
}
}
}
});
// Check sticky notes
const stickies = this.definition?._ui?.stickies || {};
Object.entries(stickies).forEach(([uuid, sticky]) => {
if (sticky.position) {
const stickyElement = this.querySelector(
`temba-sticky-note[uuid="${uuid}"]`
) as HTMLElement;
if (stickyElement) {
// Use clientWidth/clientHeight instead of getBoundingClientRect() to get element dimensions
// This avoids the coordinate system mismatch between viewport and canvas coordinates
const width = stickyElement.clientWidth;
const height = stickyElement.clientHeight;
// Use the canvas coordinates from the sticky's position
const stickyLeft = sticky.position.left;
const stickyTop = sticky.position.top;
const stickyRight = stickyLeft + width;
const stickyBottom = stickyTop + height;
// Check if selection box intersects with sticky
if (
boxLeft < stickyRight &&
boxRight > stickyLeft &&
boxTop < stickyBottom &&
boxBottom > stickyTop
) {
newSelection.add(uuid);
}
}
}
});
this.selectedItems = newSelection;
}
private renderSelectionBox(): TemplateResult | string {
if (!this.selectionBox || !this.isSelecting) return '';
const left = Math.min(this.selectionBox.startX, this.selectionBox.endX);
const top = Math.min(this.selectionBox.startY, this.selectionBox.endY);
const width = Math.abs(this.selectionBox.endX - this.selectionBox.startX);
const height = Math.abs(this.selectionBox.endY - this.selectionBox.startY);
return html`<div
class="selection-box"
style="left: ${left}px; top: ${top}px; width: ${width}px; height: ${height}px;"
></div>`;
}
private handleMouseMove(event: MouseEvent): void {
// Handle selection box drawing
if (this.canvasMouseDown && !this.isMouseDown) {
this.isSelecting = true;
this.updateSelectionBox(event);
this.requestUpdate(); // Force re-render
return;
}
if (this.plumber.connectionDragging) {
const targetNode = document.querySelector('temba-flow-node:hover');
// Clear previous target styles
document.querySelectorAll('temba-flow-node').forEach((node) => {
node.classList.remove(
'connection-target-valid',
'connection-target-invalid'
);
});
if (targetNode) {
this.targetId = targetNode.getAttribute('uuid');
// Check if target is different from source node (prevent self-targeting)
this.isValidTarget = this.targetId !== this.dragFromNodeId;
// Apply visual feedback based on validity
if (this.isValidTarget) {
targetNode.classList.add('connection-target-valid');
} else {
targetNode.classList.add('connection-target-invalid');
}
} else {
this.targetId = null;
this.isValidTarget = true;
}
}
// Handle item dragging
if (!this.isMouseDown || !this.currentDragItem) return;
const deltaX = event.clientX - this.dragStartPos.x;
const deltaY = event.clientY - this.dragStartPos.y;
const distance = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
// Only start dragging if we've moved beyond the threshold
if (!this.isDragging && distance > DRAG_THRESHOLD) {
this.isDragging = true;
}
// If we're actually dragging, update positions
if (this.isDragging) {
// Determine what items to move
const itemsToMove =
this.selectedItems.has(this.currentDragItem.uuid) &&
this.selectedItems.size > 1
? Array.from(this.selectedItems)
: [this.currentDragItem.uuid];
itemsToMove.forEach((uuid) => {
const element = this.querySelector(`[uuid="${uuid}"]`) as HTMLElement;
if (element) {
const type =
element.tagName === 'TEMBA-FLOW-NODE' ? 'node' : 'sticky';
const position = this.getPosition(uuid, type);
if (position) {
const newLeft = position.left + deltaX;
const newTop = position.top + deltaY;
// Update the visual position during drag
element.style.left = `${newLeft}px`;
element.style.top = `${newTop}px`;
// Add dragging class to ensure highest z-index
element.classList.add('dragging');
}
}
});
this.plumber.revalidate(itemsToMove);
}
}
private handleMouseUp(event: MouseEvent): void {
// Handle selection box completion
if (this.canvasMouseDown && this.isSelecting) {
this.isSelecting = false;
this.selectionBox = null;
this.canvasMouseDown = false;
this.requestUpdate();
return;
}
// Handle canvas click (clear selection)
if (this.canvasMouseDown && !this.isSelecting) {
this.canvasMouseDown = false;
return;
}
// Handle item drag completion
if (!this.isMouseDown || !this.currentDragItem) return;
// If we were actually dragging, handle the drag end
if (this.isDragging) {
const deltaX = event.clientX - this.dragStartPos.x;
const deltaY = event.clientY - this.dragStartPos.y;
// Determine what items were moved
const itemsToMove =
this.selectedItems.has(this.currentDragItem.uuid) &&
this.selectedItems.size > 1
? Array.from(this.selectedItems)
: [this.currentDragItem.uuid];
// Update positions for all moved items
const newPositions: { [uuid: string]: FlowPosition } = {};
itemsToMove.forEach((uuid) => {
const type = this.definition.nodes.find((node) => node.uuid === uuid)
? 'node'
: 'sticky';
const position = this.getPosition(uuid, type);
if (position) {
const newLeft = position.left + deltaX;
const newTop = position.top + deltaY;
// Snap to 20px grid for final position
const snappedLeft = snapToGrid(newLeft);
const snappedTop = snapToGrid(newTop);
const newPosition = { left: snappedLeft, top: snappedTop };
newPositions[uuid] = newPosition;
// Remove dragging class
const element = this.querySelector(`[uuid="${uuid}"]`) as HTMLElement;
if (element) {
element.classList.remove('dragging');
element.style.left = `${snappedLeft}px`;
element.style.top = `${snappedTop}px`;
}
}
});
if (Object.keys(newPositions).length > 0) {
getStore().getState().updateCanvasPositions(newPositions);
setTimeout(() => {
this.plumber.repaintEverything();
}, 0);
}
this.selectedItems.clear();
}
// Reset all drag state
this.isDragging = false;
this.isMouseDown = false;
this.currentDragItem = null;
this.canvasMouseDown = false;
}
private updateCanvasSize(): void {
if (!this.definition) return;
const store = getStore();
if (!store) return;
// Calculate required canvas size based on all elements
let maxWidth = 0;
let maxHeight = 0;
// Check node positions
this.definition.nodes.forEach((node) => {
const ui = this.definition._ui.nodes[node.uuid];
if (ui && ui.position) {
const nodeElement = this.querySelector(`[id="${node.uuid}"]`);
if (nodeElement) {
const rect = nodeElement.getBoundingClientRect();
maxWidth = Math.max(maxWidth, ui.position.left + rect.width);
maxHeight = Math.max(maxHeight, ui.position.top + rect.height);
}
}
});
// Check sticky note positions
const stickies = this.definition._ui?.stickies || {};
Object.entries(stickies).forEach(([uuid, sticky]) => {
if (sticky.position) {
const stickyElement = this.querySelector(
`temba-sticky-note[uuid="${uuid}"]`
) as HTMLElement;
if (stickyElement) {
// Use clientWidth/clientHeight instead of getBoundingClientRect() to get element dimensions
// This avoids the coordinate system mismatch between viewport and canvas coordinates
const width = stickyElement.clientWidth;
const height = stickyElement.clientHeight;
// Both sticky.position and width/height are now in the same coordinate system
maxWidth = Math.max(maxWidth, sticky.position.left + width);
maxHeight = Math.max(maxHeight, sticky.position.top + height);
} else {
// Fallback to default sizes if element not found
maxWidth = Math.max(maxWidth, sticky.position.left + 200);
maxHeight = Math.max(maxHeight, sticky.position.top + 100);
}
}
});
// Update canvas size in store
store.getState().expandCanvas(maxWidth, maxHeight);
}
private handleCanvasDoubleClick(event: MouseEvent): void {
// Check if we double-clicked on empty canvas space
const target = event.target as HTMLElement;
if (target.id !== 'canvas') {
return;
}
// Get canvas position
const canvas = this.querySelector('#canvas');
if (!canvas) {
return;
}
const canvasRect = canvas.getBoundingClientRect();
const relativeX = event.clientX - canvasRect.left - 10;
const relativeY = event.clientY - canvasRect.top - 10;
// Snap position to grid
const snappedLeft = snapToGrid(relativeX);
const snappedTop = snapToGrid(relativeY);
// Create new sticky note
const store = getStore();
store.getState().createStickyNote({
left: snappedLeft,
top: snappedTop
});
event.preventDefault();
event.stopPropagation();
}
private handleActionEditRequested(event: CustomEvent): void {
// For action editing, we set the action and find the corresponding node
this.editingAction = event.detail.action;
// Find the node that contains this action
const nodeUuid = event.detail.nodeUuid;
const node = this.definition.nodes.find((n) => n.uuid === nodeUuid);
if (node) {
this.editingNode = node;
this.editingNodeUI = this.definition._ui.nodes[nodeUuid];
}
}
private handleNodeEditRequested(event: CustomEvent): void {
this.editingNode = event.detail.node;
this.editingNodeUI = event.detail.nodeUI;
}
private handleActionSaved(updatedAction: Action): void {
if (this.editingNode && this.editingAction) {
// Update the specific action in the node
const updatedActions = this.editingNode.actions.map((action) =>
action.uuid === this.editingAction.uuid ? updatedAction : action
);
const updatedNode = { ...this.editingNode, actions: updatedActions };
// Update the node in the store
getStore()?.getState().updateNode(this.editingNode.uuid, updatedNode);
// Repaint jsplumb connections in case node size changed
if (this.plumber) {
// Use requestAnimationFrame to ensure DOM has been updated first
requestAnimationFrame(() => {
this.plumber.repaintEverything();
});
}
}
this.closeNodeEditor();
}
private closeNodeEditor(): void {
this.editingNode = null;
this.editingNodeUI = null;
this.editingAction = null;
}
private handleActionEditCanceled(): void {
this.closeNodeEditor();
}
private handleNodeSaved(updatedNode: Node): void {
if (this.editingNode) {
// Clean up jsPlumb connections for removed exits before updating the node
if (this.plumber) {
const oldExits = this.editingNode.exits || [];
const newExits = updatedNode.exits || [];
// Find exits that were removed
const removedExits = oldExits.filter(
(oldExit) =>
!newExits.find((newExit) => newExit.uuid === oldExit.uuid)
);
// Remove jsPlumb connections for removed exits
removedExits.forEach((exit) => {
this.plumber.removeExitConnection(exit.uuid);
});
}
this.plumber.revalidate([updatedNode.uuid]);
// Update the node in the store
getStore()?.getState().updateNode(this.editingNode.uuid, updatedNode);
// Repaint jsplumb connections in case node size changed
if (this.plumber) {
// Use requestAnimationFrame to ensure DOM has been updated first
requestAnimationFrame(() => {
this.plumber.repaintEverything();
});
}
}
this.closeNodeEditor();
}
private handleNodeEditCanceled(): void {
this.closeNodeEditor();
}
public render(): TemplateResult {
// we have to embed our own style since we are in light DOM
const style = html`<style>
${unsafeCSS(Editor.styles.cssText)}
${unsafeCSS(CanvasNode.styles.cssText)}
</style>`;
const stickies = this.definition?._ui?.stickies || {};
return html`${style}
<div id="editor">
<div
id="grid"
style="min-width:100%;width:${this.canvasSize.width}px; height:${this
.canvasSize.height}px"
>
<div id="canvas">
${this.definition
? repeat(
this.definition.nodes,
(node) => node.uuid,
(node) => {
const position = this.definition._ui?.nodes[node.uuid]
?.position || {
left: 0,
top: 0
};
const dragging =
this.isDragging &&
this.currentDragItem?.uuid === node.uuid;
const selected = this.selectedItems.has(node.uuid);
return html`<temba-flow-node
class="draggable ${dragging ? 'dragging' : ''} ${selected
? 'selected'
: ''}"
@mousedown=${this.handleMouseDown.bind(this)}
uuid=${node.uuid}
style="left:${position.left}px; top:${position.top}px"
.plumber=${this.plumber}
.node=${node}
.ui=${this.definition._ui.nodes[node.uuid]}
@temba-node-deleted=${(event) => {
this.deleteNodes([event.detail.uuid]);
}}
></temba-flow-node>`;
}
)
: html`<temba-loading></temba-loading>`}
${repeat(
Object.entries(stickies),
([uuid]) => uuid,
([uuid, sticky]) => {
const position = sticky.position || { left: 0, top: 0 };
const dragging =
this.isDragging && this.currentDragItem?.uuid === uuid;
const selected = this.selectedItems.has(uuid);
return html`<temba-sticky-note
class="draggable ${dragging ? 'dragging' : ''} ${selected
? 'selected'
: ''}"
@mousedown=${this.handleMouseDown.bind(this)}
style="left:${position.left}px; top:${position.top}px; z-index: ${1000 +
position.top}"
uuid=${uuid}
.data=${sticky}
.dragging=${dragging}
.selected=${selected}
></temba-sticky-note>`;
}
)}
${this.renderSelectionBox()}
</div>
</div>
</div>
${this.editingNode || this.editingAction
? html`<temba-node-editor
.node=${this.editingNode}
.nodeUI=${this.editingNodeUI}
.action=${this.editingAction}
@temba-node-saved=${(e: CustomEvent) =>
this.handleNodeSaved(e.detail.node)}
@temba-action-saved=${(e: CustomEvent) =>
this.handleActionSaved(e.detail.action)}
@temba-node-edit-cancelled=${this.handleNodeEditCanceled}
></temba-node-editor>`
: ''} `;
}
}
|