css/css-multicol/getclientrects-001.html

<!DOCTYPE html>
<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
<link rel="help" href="https://developer.mozilla.org/en-US/docs/Web/API/Element/getClientRects">
<link rel="help" href="https://drafts.csswg.org/css-multicol/">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<style>
  .multicol {
      visibility: hidden;
      position: absolute;
      left: 100px;
      top: 50px;
      columns: 3;
      column-gap: 10px;
      inline-size: 290px;
      font: 20px/1 Ahem;
      orphans: 1;
      widows: 1;
  }
  #horizontalTbLtr {
      writing-mode: horizontal-tb;
  }
  #verticalLrLtr {
      writing-mode: vertical-lr;
  }
  #verticalRlLtr {
      writing-mode: vertical-rl;
  }
  #sidewaysLrLtr {
      writing-mode: sideways-lr;
  }
  #sidewaysRlLtr {
      writing-mode: sideways-rl;
  }
  #horizontalTbRtl {
      writing-mode: horizontal-tb;
      direction: rtl;
  }
  #verticalLrRtl {
      writing-mode: vertical-lr;
      direction: rtl;
  }
  #verticalRlRtl {
      writing-mode: vertical-rl;
      direction: rtl;
  }
  #sidewaysLrRtl {
      writing-mode: sideways-lr;
      direction: rtl;
  }
  #sidewaysRlRtl {
      writing-mode: sideways-rl;
      direction: rtl;
  }
</style>
<div class="multicol" id="horizontalTbLtr">
  <br>
  <span>XXXX XXXX XXXX XXXX</span>
</div>
<div class="multicol" id="verticalLrLtr">
  <br>
  <span>XXXX XXXX XXXX XXXX</span>
</div>
<div class="multicol" id="verticalRlLtr">
  <br>
  <span>XXXX XXXX XXXX XXXX</span>
</div>
<div class="multicol" id="sidewaysLrLtr">
  <br>
  <span>XXXX XXXX XXXX XXXX</span>
</div>
<div class="multicol" id="sidewaysRlLtr">
  <br>
  <span>XXXX XXXX XXXX XXXX</span>
</div>
<div class="multicol" id="horizontalTbRtl" >
  <br>
  <span>XXXX XXXX XXXX XXXX</span>
</div>
<div class="multicol" id="verticalLrRtl">
  <br>
  <span>XXXX XXXX XXXX XXXX</span>
</div>
<div class="multicol" id="verticalRlRtl">
  <br>
  <span>XXXX XXXX XXXX XXXX</span>
</div>
<div class="multicol" id="sidewaysLrRtl">
  <br>
  <span>XXXX XXXX XXXX XXXX</span>
</div>
<div class="multicol" id="sidewaysRlRtl">
  <br>
  <span>XXXX XXXX XXXX XXXX</span>
</div>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
  const LEFT = 100;
  const TOP = 50;
  const LINE = 20;
  const COLUMN = 90;
  const GAP = 10;
  const TEXT_SIZE = 80;

  setup({ explicit_done: true });

  document.fonts.ready.then(() => {
    test(()=> {
      var span = document.querySelector("#horizontalTbLtr span");
      var rects = span.getClientRects();
      assert_equals(rects.length, 4);
      assert_equals(rects[0].left, 100);
      assert_equals(rects[0].top, 70);
      assert_equals(rects[1].left, 200);
      assert_equals(rects[1].top, 50);
      assert_equals(rects[2].left, 200);
      assert_equals(rects[2].top, 70);
      assert_equals(rects[3].left, 300);
      assert_equals(rects[3].top, 50);
    }, "horizontal-tb ltr");

    test(()=> {
      var span = document.querySelector("#verticalLrLtr span");
      var rects = span.getClientRects();
      assert_equals(rects.length, 4);
      assert_equals(rects[0].left, 120);
      assert_equals(rects[0].top, 50);
      assert_equals(rects[1].left, 100);
      assert_equals(rects[1].top, 150);
      assert_equals(rects[2].left, 120);
      assert_equals(rects[2].top, 150);
      assert_equals(rects[3].left, 100);
      assert_equals(rects[3].top, 250);
    }, "vertical-lr ltr");

    test(()=> {
      var span = document.querySelector("#verticalRlLtr span");
      var rects = span.getClientRects();
      assert_equals(rects.length, 4);
      assert_equals(rects[0].left, 100);
      assert_equals(rects[0].top, 50);
      assert_equals(rects[1].left, 120);
      assert_equals(rects[1].top, 150);
      assert_equals(rects[2].left, 100);
      assert_equals(rects[2].top, 150);
      assert_equals(rects[3].left, 120);
      assert_equals(rects[3].top, 250);
    }, "vertical-rl ltr");

    test(()=> {
      var span = document.querySelector("#sidewaysLrLtr span");
      var rects = span.getClientRects();
      assert_equals(rects.length, 4);
      assert_equals(rects[0].left, LEFT + LINE);
      assert_equals(rects[0].top, TOP + COLUMN * 3 + GAP * 2 - TEXT_SIZE);
      assert_equals(rects[1].left, LEFT);
      assert_equals(rects[1].top, TOP + COLUMN * 2 + GAP - TEXT_SIZE);
      assert_equals(rects[2].left, LEFT + LINE);
      assert_equals(rects[2].top, TOP + COLUMN * 2 + GAP - TEXT_SIZE);
      assert_equals(rects[3].left, LEFT);
      assert_equals(rects[3].top, TOP + COLUMN - TEXT_SIZE);
    }, "sideways-lr ltr");

    test(()=> {
      var span = document.querySelector("#sidewaysRlLtr span");
      var rects = span.getClientRects();
      assert_equals(rects.length, 4);
      assert_equals(rects[0].left, LEFT);
      assert_equals(rects[0].top, TOP);
      assert_equals(rects[1].left, LEFT + LINE);
      assert_equals(rects[1].top, TOP + COLUMN + GAP);
      assert_equals(rects[2].left, LEFT);
      assert_equals(rects[2].top, TOP + COLUMN + GAP);
      assert_equals(rects[3].left, LEFT + LINE);
      assert_equals(rects[3].top, TOP + COLUMN * 2 + GAP * 2);
    }, "sideways-rl ltr");

    test(()=> {
      var span = document.querySelector("#horizontalTbRtl span");
      var rects = span.getClientRects();
      assert_equals(rects.length, 4);
      assert_equals(rects[0].left, 310);
      assert_equals(rects[0].top, 70);
      assert_equals(rects[1].left, 210);
      assert_equals(rects[1].top, 50);
      assert_equals(rects[2].left, 210);
      assert_equals(rects[2].top, 70);
      assert_equals(rects[3].left, 110);
      assert_equals(rects[3].top, 50);
    }, "horizontal-tb rtl");

    test(()=> {
      var span = document.querySelector("#verticalLrRtl span");
      var rects = span.getClientRects();
      assert_equals(rects.length, 4);
      assert_equals(rects[0].left, 120);
      assert_equals(rects[0].top, 260);
      assert_equals(rects[1].left, 100);
      assert_equals(rects[1].top, 160);
      assert_equals(rects[2].left, 120);
      assert_equals(rects[2].top, 160);
      assert_equals(rects[3].left, 100);
      assert_equals(rects[3].top, 60);
    }, "vertical-lr rtl");

    test(()=> {
      var span = document.querySelector("#verticalRlRtl span");
      var rects = span.getClientRects();
      assert_equals(rects.length, 4);
      assert_equals(rects[0].left, 100);
      assert_equals(rects[0].top, 260);
      assert_equals(rects[1].left, 120);
      assert_equals(rects[1].top, 160);
      assert_equals(rects[2].left, 100);
      assert_equals(rects[2].top, 160);
      assert_equals(rects[3].left, 120);
      assert_equals(rects[3].top, 60);
    }, "vertical-rl rtl");

    test(()=> {
      var span = document.querySelector("#sidewaysLrRtl span");
      var rects = span.getClientRects();
      assert_equals(rects.length, 4);
      assert_equals(rects[0].left, LEFT + LINE);
      assert_equals(rects[0].top, TOP);
      assert_equals(rects[1].left, LEFT);
      assert_equals(rects[1].top, TOP + COLUMN + GAP);
      assert_equals(rects[2].left, LEFT + LINE);
      assert_equals(rects[2].top, TOP + COLUMN + GAP);
      assert_equals(rects[3].left, LEFT);
      assert_equals(rects[3].top, TOP + COLUMN + GAP + COLUMN + GAP);
    }, "sideways-lr rtl");

    test(()=> {
      var span = document.querySelector("#sidewaysRlRtl span");
      var rects = span.getClientRects();
      assert_equals(rects.length, 4);
      assert_equals(rects[0].left, LEFT);
      assert_equals(rects[0].top, TOP + COLUMN * 3 + GAP * 2 - TEXT_SIZE);
      assert_equals(rects[1].left, LEFT + LINE);
      assert_equals(rects[1].top, TOP + COLUMN * 2 + GAP - TEXT_SIZE);
      assert_equals(rects[2].left, LEFT);
      assert_equals(rects[2].top, TOP + COLUMN * 2 + GAP - TEXT_SIZE);
      assert_equals(rects[3].left, LEFT + LINE);
      assert_equals(rects[3].top, TOP + COLUMN - TEXT_SIZE);
    }, "sideways-rl rtl");

    done();
  });
</script>