[Question] page.waitForEvent supported?

I don’t see a waitForEvent in the java version of playwright. Is it supported?

https://playwright.dev/docs/api/class-page#pagewaitforeventevent-optionsorpredicate

[yury-s]

Page.waitForFunction is likely what you need. You can do something like this:

// Get a handle to a promise in the page that resolves when the event is fired
JSHandle promise = page.evaluateHandle("() => {" +
  "  const p = new Promise(r => {\n" +
  "    const listener = e => {\n" +
  "      document.removeEventListener('my-event', listener);\n" +
  "      r('done');\n" +
  "    };\n" +
  "    document.addEventListener('my-event', listener);\n" +
  "  });" +
  "  return { p };" +
  "}");
// Do something that eventually triggers the event
page.evaluate("setTimeout(() => document.dispatchEvent(new Event('my-event')), 1000)");
// Wait for the promise to get fulfilled
JSHandle result = page.waitForFunction("arg => arg.p", promise);
System.out.println(result.jsonValue());

[chaganiu]

i’m using Ag-Grid to display data. When the user uses the filter functionality of the grid it takes a couple seconds for the grid to update. Ag-Grid emits events (https://www.ag-grid.com/javascript-grid/grid-events/) when things happen in the grid and i wanted to listen for the filterChanged or modelUpdated event so my UI tests will know when the grid has finished filtering.