image-x-y-zoom.html

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This WPT test may be referenced by the following Test IDs:
- /css/cssom-view/image-x-y-zoom.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>x and y properties for image elements with css zoom</title>

<link rel="author" title="Yotam Hacohen" href="mailto:yotha@chromium.org">

<link rel="author" title="Google" href="http://www.google.com/">

<link rel="help" href="https://drafts.csswg.org/cssom-view/#dom-element-scroll">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

  <head>

    <style>

      img {

        display: block;

      .container {

        height: 100px;

        width: 100px;

      #x4_zoom_container {

        zoom: 4;

    </style>

  </head>

  <body>

    <div class="container" id="no_zoom_container">

      <img src="support/1x1-green.png" id="no_zoom_image_no_zoom_container">

      <img src="support/1x1-navy.png" style="zoom: 2;" id="x2_zoom_image_no_zoom_container">

    </div>

    <div class="container" id="x4_zoom_container">

      <img style="position: relative; top: 10px;" src="support/1x1-maroon.png" id="no_zoom_image_x4_zoom_container">

      <img src="support/1x1-navy.png" style="zoom: 2;" id="x2_zoom_image_x4_zoom_container">

      <img src="support/1x1-red.png" style="transform: scale(5);" id="transformed_and_zoomed_image">

    </div>

    <script>

        function compareXYCoordinatesToBoundingBox(object, object_name){

          assert_equals(object.x, object.getBoundingClientRect().left, object_name + ' x');

          assert_equals(object.y, object.getBoundingClientRect().top, object_name + ' y');

        window.onload = function() {

        test(function() {

          // Values should be same as values of getBoundingClientRect

          compareXYCoordinatesToBoundingBox(no_zoom_image_no_zoom_container, 'no-zoom image in a no-zoom container');

          compareXYCoordinatesToBoundingBox(x2_zoom_image_no_zoom_container, 'image with css zoom in a no zoom container');

          compareXYCoordinatesToBoundingBox(no_zoom_image_x4_zoom_container, 'no-zoom image in a container with css zoom');

          compareXYCoordinatesToBoundingBox(x2_zoom_image_x4_zoom_container, 'both image and container have css zoom');

});

        test(function() {

          // Values should be in the root coordinate system, and affected by zoom

          assert_equals(no_zoom_image_no_zoom_container.x, 8, 'no zoom image no zoom container x');

          assert_equals(no_zoom_image_no_zoom_container.y, 8, 'no zoom image no zoom container y');

          assert_equals(x2_zoom_image_no_zoom_container.x, 8, 'x2 zoom image no zoom container x');

          assert_equals(x2_zoom_image_no_zoom_container.y, 9, 'x2 zoom image no zoom container y');

          assert_equals(no_zoom_image_x4_zoom_container.x, 8, 'no zoom image x4 zoom container x');

          // This element also has a position-top, which is affected by zoom

          assert_equals(no_zoom_image_x4_zoom_container.y, 148, 'no zoom image x4 zoom container y');

          assert_equals(x2_zoom_image_x4_zoom_container.x, 8, 'x2 zoom image x4 zoom container x');

          assert_equals(x2_zoom_image_x4_zoom_container.y, 112, 'x2 zoom image x4 zoom container y');

          assert_equals(transformed_and_zoomed_image.x, 8, 'image with transform properties x');

          assert_equals(transformed_and_zoomed_image.y, 120, 'image with transform properties y');

});

};

      </script>

  </body>