/* Any copyright is dedicated to the Public Domain.
 http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

// Test that the box model view continues to work after a page navigation and that
// it also works after going back

const IFRAME1 = URL_ROOT_SSL + "doc_boxmodel_iframe1.html";
const IFRAME2 = URL_ROOT_SSL + "doc_boxmodel_iframe2.html";

add_task(async function () {
  const tab = await addTab(IFRAME1);
  const browser = tab.linkedBrowser;
  const { inspector, boxmodel } = await openLayoutView();

  await testFirstPage(inspector, boxmodel, browser);

  info("Navigate to the second page");
  let onMarkupLoaded = waitForMarkupLoaded(inspector);
  await navigateTo(IFRAME2);
  await onMarkupLoaded;

  await testSecondPage(inspector, boxmodel, browser);

  info("Go back to the first page");
  onMarkupLoaded = waitForMarkupLoaded(inspector);
  gBrowser.goBack();
  await onMarkupLoaded;

  await testBackToFirstPage(inspector, boxmodel, browser);
});

async function testFirstPage(inspector, boxmodel, browser) {
  info("Test that the box model view works on the first page");

  await selectNode("p", inspector);

  info("Checking that the box model view shows the right value");
  const paddingElt = boxmodel.document.querySelector(
    ".boxmodel-padding.boxmodel-top > span"
  );
  is(paddingElt.textContent, "50");

  info("Listening for box model view changes and modifying the padding");
  const onUpdated = waitForUpdate(inspector);
  await setStyle(browser, "p", "padding", "20px");
  await onUpdated;
  ok(true, "Box model view got updated");

  info("Checking that the box model view shows the right value after update");
  is(paddingElt.textContent, "20");
}

async function testSecondPage(inspector, boxmodel, browser) {
  info("Test that the box model view works on the second page");

  await selectNode("p", inspector);

  info("Checking that the box model view shows the right value");
  const sizeElt = boxmodel.document.querySelector(".boxmodel-size > span");
  is(sizeElt.textContent, "100" + "\u00D7" + "100");

  info("Listening for box model view changes and modifying the size");
  const onUpdated = waitForUpdate(inspector);
  await setStyle(browser, "p", "width", "200px");
  await onUpdated;
  ok(true, "Box model view got updated");

  info("Checking that the box model view shows the right value after update");
  is(sizeElt.textContent, "200" + "\u00D7" + "100");
}

async function testBackToFirstPage(inspector, boxmodel, browser) {
  info("Test that the box model view works on the first page after going back");

  await selectNode("p", inspector);

  info(
    "Checking that the box model view shows the right value, which is the" +
      "modified value from step one because of the bfcache"
  );
  const paddingElt = boxmodel.document.querySelector(
    ".boxmodel-padding.boxmodel-top > span"
  );
  is(paddingElt.textContent, "20");

  info("Listening for box model view changes and modifying the padding");
  const onUpdated = waitForUpdate(inspector);
  await setStyle(browser, "p", "padding", "100px");
  await onUpdated;
  ok(true, "Box model view got updated");

  info("Checking that the box model view shows the right value after update");
  is(paddingElt.textContent, "100");
}