@ng-dnd/core
Version:
Drag and Drop for Angular
91 lines • 12.7 kB
JavaScript
import { NgModule, NgZone } from '@angular/core';
import { DragPreviewDirective, DragSourceDirective, DropTargetDirective } from './dnd-directives';
import { DRAG_DROP_BACKEND, DRAG_DROP_BACKEND_DEBUG_MODE, DRAG_DROP_BACKEND_FACTORY, DRAG_DROP_BACKEND_OPTIONS, DRAG_DROP_GLOBAL_CONTEXT, DRAG_DROP_MANAGER, } from './tokens';
import { createDragDropManager } from 'dnd-core';
import { invariant } from './internal/invariant';
import * as i0 from "@angular/core";
/** @ignore */
export function unpackBackendForEs5Users(backendOrModule) {
// Auto-detect ES6 default export for people still using ES5
let backend = backendOrModule;
if (typeof backend === 'object' && typeof backend.default === 'function') {
backend = backend.default;
}
invariant(typeof backend === 'function', 'Expected the backend to be a function or an ES6 module exporting a default function. ' +
'Read more: http://react-dnd.github.io/react-dnd/docs-drag-drop-context.html');
return backend;
}
// TODO: allow injecting window
/** @ignore */
// @dynamic
export function managerFactory(backendFactory, ngZone, context, backendOptions, debugMode) {
backendFactory = unpackBackendForEs5Users(backendFactory);
return ngZone.runOutsideAngular(() => createDragDropManager(backendFactory, context, backendOptions, debugMode));
}
/** @ignore */
// @dynamic
export function getBackend(manager) {
return manager.getBackend();
}
/** @ignore */
export function getGlobalContext() {
return typeof global !== 'undefined' ? global : window;
}
/** @ignore */
const EXPORTS = [DragSourceDirective, DropTargetDirective, DragPreviewDirective];
// @dynamic
export class DndModule {
static forRoot(backendInput) {
return {
ngModule: DndModule,
providers: [provideDnd(backendInput)],
};
}
/** @nocollapse */ static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "18.2.5", ngImport: i0, type: DndModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule }); }
/** @nocollapse */ static { this.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: "14.0.0", version: "18.2.5", ngImport: i0, type: DndModule, imports: [DragSourceDirective, DropTargetDirective, DragPreviewDirective], exports: [DragSourceDirective, DropTargetDirective, DragPreviewDirective] }); }
/** @nocollapse */ static { this.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: "12.0.0", version: "18.2.5", ngImport: i0, type: DndModule }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "18.2.5", ngImport: i0, type: DndModule, decorators: [{
type: NgModule,
args: [{
imports: EXPORTS,
exports: EXPORTS,
}]
}] });
export function provideDnd(backendInput) {
return [
{
provide: DRAG_DROP_BACKEND_FACTORY,
useValue: backendInput.backend,
},
{
provide: DRAG_DROP_BACKEND_OPTIONS,
useValue: backendInput.options,
},
{
provide: DRAG_DROP_BACKEND_DEBUG_MODE,
useValue: backendInput.debug,
},
{
provide: DRAG_DROP_GLOBAL_CONTEXT,
useFactory: getGlobalContext,
},
{
provide: DRAG_DROP_MANAGER,
useFactory: managerFactory,
deps: [
DRAG_DROP_BACKEND_FACTORY,
NgZone,
DRAG_DROP_GLOBAL_CONTEXT,
DRAG_DROP_BACKEND_OPTIONS,
DRAG_DROP_BACKEND_DEBUG_MODE,
],
},
{
provide: DRAG_DROP_BACKEND,
deps: [DRAG_DROP_MANAGER],
useFactory: getBackend,
},
];
}
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' +\n      'Read more: http://react-dnd.github.io/react-dnd/docs-drag-drop-context.html'\n  );\n  return backend;\n}\n\n// TODO: allow injecting window\n/** @ignore */\n// @dynamic\nexport function managerFactory(\n  backendFactory: BackendFactory,\n  ngZone: NgZone,\n  context: unknown,\n  backendOptions?: unknown,\n  debugMode?: boolean\n): DragDropManager {\n  backendFactory = unpackBackendForEs5Users(backendFactory);\n  return ngZone.runOutsideAngular(() =>\n    createDragDropManager(backendFactory, context, backendOptions, debugMode)\n  );\n}\n\n/** @ignore */\n// @dynamic\nexport function getBackend(manager: DragDropManager) {\n  return manager.getBackend();\n}\n\n/** @ignore */\ndeclare const global: any;\n/** @ignore */\nexport function getGlobalContext() {\n  return typeof global !== 'undefined' ? global : (window as any);\n}\n\n/*\n * Hold on, this gets a little confusing.\n *\n * A dnd-core Backend has lots of useful methods for registering elements and firing events.\n * However, backends are not distributed this way.\n * The HTML5Backend and the TestBackend, when imported { default as HTML5Backend }, are not Backends, they are\n * functions: (manager: DragDropManager, ...) => Backend.\n * This is now known as a BackendFactory under dnd-core 4+ typescript annotations.\n *\n * However, Angular has its own conception of what a factory is for AOT. This is the 'factory'\n * to which BackendFactoryInput refers below.\n * Sometimes, users will want to preconfigure a backend (like TouchBackend, or MultiBackend).\n * For this, they need to export a function that returns a configured BackendFactory\n * and pass it in as  { backendFactory: exportedFunction }.\n */\n\n/**\n * Used for providing backends to {@link DndModule#forRoot}.\n * You can configure your backend with `options`.\n */\nexport interface BackendInput {\n  /** A plain backend, for example the HTML5Backend. */\n  backend: BackendFactory;\n  /**\n   * Any configuration your backend accepts. Use this with the TouchBackend or the MultiBackend,\n   * for example.\n   */\n  options?: any;\n  /**\n   * Whether dnd-core should enable debugging, which lets you see dnd-core actions\n   * in the Redux extension for Chrome.\n   */\n  debug?: boolean;\n}\n\n/** @ignore */\nconst EXPORTS = [DragSourceDirective, DropTargetDirective, DragPreviewDirective];\n\n// @dynamic\n@NgModule({\n  imports: EXPORTS,\n  exports: EXPORTS,\n})\nexport class DndModule {\n  static forRoot(backendInput: BackendInput): ModuleWithProviders<DndModule> {\n    return {\n      ngModule: DndModule,\n      providers: [provideDnd(backendInput)],\n    };\n  }\n}\n\nexport function provideDnd(backendInput: BackendInput): Provider[] {\n  return [\n    {\n      provide: DRAG_DROP_BACKEND_FACTORY,\n      useValue: backendInput.backend,\n    },\n    {\n      provide: DRAG_DROP_BACKEND_OPTIONS,\n      useValue: backendInput.options,\n    },\n    {\n      provide: DRAG_DROP_BACKEND_DEBUG_MODE,\n      useValue: backendInput.debug,\n    },\n    {\n      provide: DRAG_DROP_GLOBAL_CONTEXT,\n      useFactory: getGlobalContext,\n    },\n    {\n      provide: DRAG_DROP_MANAGER,\n      useFactory: managerFactory,\n      deps: [\n        DRAG_DROP_BACKEND_FACTORY,\n        NgZone,\n        DRAG_DROP_GLOBAL_CONTEXT,\n        DRAG_DROP_BACKEND_OPTIONS,\n        DRAG_DROP_BACKEND_DEBUG_MODE,\n      ],\n    },\n    {\n      provide: DRAG_DROP_BACKEND,\n      deps: [DRAG_DROP_MANAGER],\n      useFactory: getBackend,\n    },\n  ];\n}\n"]}