browser_grids_grid-list-on-iframe-reloaded.js

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/* Any copyright is dedicated to the Public Domain.

 http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

// Tests that the list of grids does refresh when an iframe containing a grid is removed

// and re-created.

// See bug 1378306 where this happened with jsfiddle.

const TEST_URI = URL_ROOT + "doc_iframe_reloaded.html";

add_task(async function () {

  await addTab(TEST_URI);

  const { gridInspector, inspector } = await openLayoutView();

  const { document: doc } = gridInspector;

  const { highlighters, store } = inspector;

  const gridList = doc.getElementById("grid-list");

  const checkbox = gridList.children[0].querySelector("input");

  info("Clicking on the first checkbox to highlight the grid");

  const onHighlighterShown = highlighters.once("grid-highlighter-shown");

  const onCheckboxChange = waitUntilState(

    store,

    state => state.grids.length == 1 && state.grids[0].highlighted

);

  checkbox.click();

  await onHighlighterShown;

  await onCheckboxChange;

  ok(checkbox.checked, "The checkbox is checked");

  is(gridList.childNodes.length, 1, "There's one grid in the list");

  is(highlighters.gridHighlighters.size, 1, "There's a highlighter shown");

is(

    highlighters.state.grids.size,

1,

    "There's a saved grid state to be restored."

);

  info("Reload the iframe in content and expect the grid list to update");

  const oldGrid = store.getState().grids[0];

  const onNewListUnchecked = waitUntilState(

    store,

    state =>

      state.grids.length == 1 &&

      state.grids[0].actorID !== oldGrid.actorID &&

      !state.grids[0].highlighted

);

  const onHighlighterHidden = highlighters.once("grid-highlighter-hidden");

  SpecialPowers.spawn(gBrowser.selectedBrowser, [], () =>

    content.wrappedJSObject.reloadIFrame()

);

  await onNewListUnchecked;

  await onHighlighterHidden;

  is(gridList.childNodes.length, 1, "There's still one grid in the list");

  ok(!highlighters.state.grids.size, "No grids to be restored on page reload.");

});