gecko-dev/browser/devtools/tilt/test/browser_tilt_zoom.js

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

const ZOOM = 2;
const RESIZE = 50;
let tiltOpened = false;

function test() {
  if (!isTiltEnabled()) {
    info("Skipping controller test because Tilt isn't enabled.");
    return;
  }
  if (!isWebGLSupported()) {
    info("Skipping controller test because WebGL isn't supported.");
    return;
  }

  waitForExplicitFinish();

  createTab(function() {
    TiltUtils.setDocumentZoom(window, ZOOM);

    createTilt({
      onTiltOpen: function(instance)
      {
        tiltOpened = true;

        ok(isApprox(instance.presenter._getPageZoom(), ZOOM),
          "The Highlighter zoom doesn't have the expected results.");

        ok(isApprox(instance.presenter.transforms.zoom, ZOOM),
          "The presenter transforms zoom wasn't initially set correctly.");

        let contentWindow = gBrowser.selectedBrowser.contentWindow;
        let initialWidth = contentWindow.innerWidth;
        let initialHeight = contentWindow.innerHeight;

        let renderer = instance.presenter._renderer;
        let arcball = instance.controller.arcball;

        ok(isApprox(contentWindow.innerWidth * ZOOM, renderer.width, 1),
          "The renderer width wasn't set correctly before the resize.");
        ok(isApprox(contentWindow.innerHeight * ZOOM, renderer.height, 1),
          "The renderer height wasn't set correctly before the resize.");

        ok(isApprox(contentWindow.innerWidth * ZOOM, arcball.width, 1),
          "The arcball width wasn't set correctly before the resize.");
        ok(isApprox(contentWindow.innerHeight * ZOOM, arcball.height, 1),
          "The arcball height wasn't set correctly before the resize.");


        window.resizeBy(-RESIZE * ZOOM, -RESIZE * ZOOM);

        executeSoon(function() {
          ok(isApprox(contentWindow.innerWidth + RESIZE, initialWidth, 1),
            "The content window width wasn't set correctly after the resize.");
          ok(isApprox(contentWindow.innerHeight + RESIZE, initialHeight, 1),
            "The content window height wasn't set correctly after the resize.");

          ok(isApprox(contentWindow.innerWidth * ZOOM, renderer.width, 1),
            "The renderer width wasn't set correctly after the resize.");
          ok(isApprox(contentWindow.innerHeight * ZOOM, renderer.height, 1),
            "The renderer height wasn't set correctly after the resize.");

          ok(isApprox(contentWindow.innerWidth * ZOOM, arcball.width, 1),
            "The arcball width wasn't set correctly after the resize.");
          ok(isApprox(contentWindow.innerHeight * ZOOM, arcball.height, 1),
            "The arcball height wasn't set correctly after the resize.");


          window.resizeBy(RESIZE * ZOOM, RESIZE * ZOOM);


          Services.obs.addObserver(cleanup, DESTROYED, false);
          Tilt.destroy(Tilt.currentWindowId);
        });
      }
    }, false, function suddenDeath()
    {
      info("Tilt could not be initialized properly.");
      cleanup();
    });
  });
}

function cleanup() {
  if (tiltOpened) { Services.obs.removeObserver(cleanup, DESTROYED); }
  gBrowser.removeCurrentTab();
  finish();
}