feat(locator): introduce locator.page() getter

docs/src/api/class-locator.md

@@ -551,6 +551,11 @@ Returns locator to the n-th matching element.
 ### param: Locator.nth.index
 - `index` <[int]>
 
+## method: Locator.page
+- returns: <[Page]>
+
+A page this locator belongs to.
+
 ## async method: Locator.press
 
 Focuses the element, and then uses [`method: Keyboard.down`] and [`method: Keyboard.up`].

packages/playwright-core/src/client/locator.ts

@@ -59,6 +59,10 @@ export class Locator implements api.Locator {
     });
   }
 
+  page() {
+    return this._frame.page();
+  }
+
   async boundingBox(options?: TimeoutOptions): Promise<Rect | null> {
     return this._withElement(h => h.boundingBox(), options?.timeout);
   }

packages/playwright-core/types/types.d.ts

@@ -9279,6 +9279,11 @@ export interface Locator {
    */
   nth(index: number): Locator;
 
+  /**
+   * A page this locator belongs to.
+   */
+  page(): Page;
+
   /**
    * Focuses the element, and then uses [keyboard.down(key)](https://playwright.dev/docs/api/class-keyboard#keyboard-down)
    * and [keyboard.up(key)](https://playwright.dev/docs/api/class-keyboard#keyboard-up).

tests/page/locator-convenience.spec.ts

@@ -191,3 +191,15 @@ it('isVisible and isHidden should work with details', async ({ page }) => {
 
   await expect(page.locator('ul')).toBeHidden();
 });
+
+it('should return page', async ({ page, server }) => {
+  await page.goto(server.PREFIX + '/frames/two-frames.html');
+  const outer = page.locator('#outer');
+  expect(outer.page()).toBe(page);
+
+  const inner = outer.locator('#inner');
+  expect(inner.page()).toBe(page);
+
+  const inFrame = page.frames()[1].locator('div');
+  expect(inFrame.page()).toBe(page);
+});