testing/web-platform/tests/html/dom/elements/global-attributes/dir_auto-textarea-mixed.html


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<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8" />
    <title>HTML Test: textarea with dir=auto, mixed L and R paragraphs</title>
    <link rel="match" href="dir_auto-textarea-mixed-ref.html" />
    <link rel="author" title="Aharon Lanin" href="mailto:aharon@google.com" />
    <link rel="author" title="HTML5 bidi test WG" href="mailto:html5bidi@googlegroups.com" />
    <link rel="help" href="https://html.spec.whatwg.org/multipage/#the-dir-attribute" />
    <link rel="help" href="http://dev.w3.org/csswg/css3-writing-modes/#unicode-bidi0" />
    <meta name="assert" content="
      When dir='auto', the direction is set according to the first strong character
      of the text.
      For textarea and pre elements, the heuristic is applied on a per-paragraph level." />
    <style>
      body, textarea {
        font-size:18px;
        text-align:left;
      }
      textarea {
        resize: none;
      }
      .test, .ref {
        border: medium solid gray;
        width: 400px;
        margin: 20px;
      }
      .comments {
        display: none;
      }
    </style>
  </head>
  <body>
    <div class="instructions"><p>Test passes if the two boxes below look exactly the same.</p></div>
    <div class="comments">
      Key to entities used below:
        &#x200E; - LRM, the invisible left-to-right mark (strongly LTR).
        &#x200F; - RLM, the invisible right-to-left mark (strongly RTL).
      We use text-align:left because neither the dir="auto" nor the unicode-bidi:plaintext
      specification states whether text-align:start and text-align:end should obey the paragraph
      direction or the direction property in a unicode-bidi:plaintext element.
    </div>
    <div class="test">
      <div dir="ltr">
        <textarea rows="5" dir="auto">
!&#x200F;123&#x200E;@
@&#x200E;123&#x200F;!
!123&#x200F;&#x200E;@
@123&#x200E;&#x200F;!
        </textarea>
      </div>
      <div dir="rtl">
        <textarea rows="5" dir="auto">
@&#x200E;123&#x200F;!
!&#x200F;123&#x200E;@
@123&#x200E;&#x200F;!
!123&#x200F;&#x200E;@
        </textarea>
      </div>
    </div>
    <div class="ref">
      <div dir="ltr">
        <textarea rows="5" dir="rtl">
!123@
!123@
!123@
!123@
        </textarea>
      </div>
      <div dir="rtl">
        <textarea rows="5" dir="ltr">
@123!
@123!
@123!
@123!
        </textarea>
      </div>
    </div>
  </body>
</html>