From b99961249730bf26e597de281396e948454e42a1 Mon Sep 17 00:00:00 2001
From: Dmitriy Kovalenko <dmtr.kovalenko@outlook.com>
Date: Sat, 19 Dec 2020 15:22:10 +0200
Subject: [PATCH] Make a realDnd concept

---
 cypress/integration/realdnd.spec.ts | 10 ++++
 src/commands/realDnd.ts             | 78 +++++++++++++++++++++++++++++
 src/index.d.ts                      | 12 +++++
 src/support.ts                      | 15 ++++++
 4 files changed, 115 insertions(+)
 create mode 100644 cypress/integration/realdnd.spec.ts
 create mode 100644 src/commands/realDnd.ts

diff --git a/cypress/integration/realdnd.spec.ts b/cypress/integration/realdnd.spec.ts
new file mode 100644
index 0000000..c56fd3a
--- /dev/null
+++ b/cypress/integration/realdnd.spec.ts
@@ -0,0 +1,10 @@
+describe("cy.realDnd", () => {
+  beforeEach(() => {
+    cy.visit("https://csb-q3r9e-l9d9gloe1.vercel.app/")
+  })
+
+
+  it("can drag and drop", () => {
+    cy.get("div[draggable=true]").realDnd(':nth-child(43) > [style="position: relative; width: 100%; height: 100%;"] > div')
+  })
+})
\ No newline at end of file
diff --git a/src/commands/realDnd.ts b/src/commands/realDnd.ts
new file mode 100644
index 0000000..7a11713
--- /dev/null
+++ b/src/commands/realDnd.ts
@@ -0,0 +1,78 @@
+import { fireCdpCommand } from "../fireCdpCommand";
+import {
+  getCypressElementCoordinates,
+  Position,
+} from "../getCypressElementCoordinates";
+
+export interface RealDndOptions {
+  /** Pointer type for realClick, if "pen" touch simulated */
+  pointer?: "mouse" | "pen";
+  /**
+   * Position of the click event relative to the element
+   * @example cy.realClick({ position: "topLeft" })
+   */
+  position?: Position;
+}
+
+function isJQuery(obj: unknown): obj is JQuery {
+  return Boolean(obj.jquery);
+}
+
+/** @ignore this, update documentation for this function at index.d.ts */
+export async function realDnd(
+  subject: JQuery,
+  destination: JQuery | { x: number; y: number },
+  options: RealDndOptions = {}
+) {
+  if (!destination) {
+    throw new Error(
+      "destination is required when using cy.realDnd(destination)"
+    );
+  }
+
+  const startCoords = getCypressElementCoordinates(subject, options.position);
+  const endCoords = isJQuery(destination)
+    ? getCypressElementCoordinates(destination, options.position)
+    : destination;
+
+  const log = Cypress.log({
+    $el: subject,
+    name: "realClick",
+    consoleProps: () => ({
+      Dragged: subject.get(0),
+      From: startCoords,
+      End: endCoords,
+    }),
+  });
+
+  log.snapshot("before");
+  await fireCdpCommand("Input.dispatchMouseEvent", {
+    type: "mousePressed",
+    ...startCoords,
+    clickCount: 1,
+    buttons: 1,
+    pointerType: options.pointer ?? "mouse",
+    button: "left",
+  });
+
+  console.log(endCoords)
+  await fireCdpCommand("Input.dispatchMouseEvent", {
+    ...endCoords,
+    type: "mouseMoved",
+    button: "left",
+    pointerType: options.pointer ?? "mouse",
+  });
+
+  await fireCdpCommand("Input.dispatchMouseEvent", {
+    type: "mouseReleased",
+    ...endCoords,
+    clickCount: 1,
+    buttons: 1,
+    pointerType: options.pointer ?? "mouse",
+    button: "left",
+  });
+
+  log.snapshot("after").end();
+
+  return subject;
+}
diff --git a/src/index.d.ts b/src/index.d.ts
index 1c8f179..089893a 100644
--- a/src/index.d.ts
+++ b/src/index.d.ts
@@ -48,5 +48,17 @@ declare namespace Cypress {
      * @param text text to type. Should be the same as cypress's default type command argument (https://docs.cypress.io/api/commands/type.html#Arguments)
      */
     realType: typeof import("./commands/realType").realType;
+    /**
+     * Runs native drag and drop event.
+     * @see https://github.com/dmtrKovalenko/cypress-real-events#cyrealtype
+     * @example
+     * cy.get(".card").realDnd(".someOtherPane")
+     * cy.get(".card").realDnd({ x: 1000, y: 251 })
+     * @param destination where to drop the element
+     * @param options dnd options
+     */
+    realDnd: NormalizeCypressCommand<
+      typeof import("./commands/realDnd").realDnd
+    >;
   }
 }
diff --git a/src/support.ts b/src/support.ts
index 54de5c9..5392b3f 100644
--- a/src/support.ts
+++ b/src/support.ts
@@ -1,4 +1,5 @@
 import { realClick } from "./commands/realClick";
+import { realDnd } from "./commands/realDnd";
 import { realHover } from "./commands/realHover";
 import { realPress } from "./commands/realPress";
 import { realType } from "./commands/realType";
@@ -7,3 +8,17 @@ Cypress.Commands.add("realClick", { prevSubject: true }, realClick);
 Cypress.Commands.add("realHover", { prevSubject: true }, realHover);
 Cypress.Commands.add("realPress", realPress);
 Cypress.Commands.add("realType", realType);
+Cypress.Commands.add("realDndRaw", realDnd);
+Cypress.Commands.add(
+  "realDnd",
+  { prevSubject: true },
+  (subject, destination, opts) => {
+    if (typeof destination === "string") {
+      cy.get(destination).then((el) => {
+        cy.realDndRaw(subject, el, opts);
+      });
+    } else {
+      cy.realDndRaw(subject, destination, opts);
+    }
+  }
+);