layout/reftests/flexbox/pagination/flexbox-multi-row-1d.html

   1 <!DOCTYPE html>
   2 <!-- Any copyright is dedicated to the Public Domain.
   3      http://creativecommons.org/publicdomain/zero/1.0/ -->
   4 <html>
   5   <meta charset="utf-8">
   6   <title>CSS Flexbox Test: Fragmentation of block-size:auto multi-line row-reverse flex container with fixed block-size flex items</title>
   7   <link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com">
   8   <link rel="author" title="Mozilla" href="http://www.mozilla.org/">
   9   <link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#pagination">
  10   <link rel="match" href="flexbox-multi-row-1-ref.html">
  11   <meta name="assert" content="This test verifies fragmentation of fixed block-size flex items in a block-size:auto multi-line row flex container, with various combinations of margin/border/padding, alignments, and gap. Also use a script to enlarge multicol block-size.">
  12
  13   <style>
  14   .multicol {
  15     block-size: 30px;
  16     inline-size: 200px;
  17     column-width: 60px;
  18     column-fill: auto;
  19     column-gap: 10px;
  20     border: 5px solid orange;
  21     margin-block-end: 5px; /* Just to separate each sub-testcase visually. */
  22   }
  23   .flexContainer {
  24     display: flex;
  25     flex-wrap: wrap-reverse;
  26     flex-direction: row-reverse;
  27     background: gray;
  28     /* border-width is 0 by default; some sub-testcases will increase it. */
  29     border: 0 solid lightgray;
  30   }
  31   .border-padding {
  32     border-block-width: 10px;
  33     padding-block: 5px;
  34   }
  35   .with-gap {
  36     row-gap: 20px;
  37     column-gap: 10px;
  38   }
  39
  40   header, nav, article, footer {
  41     inline-size: 30px;
  42   }
  43   .with-gap header, .with-gap nav, .with-gap article, .with-gap footer {
  44     inline-size: 25px;
  45   }
  46
  47   /* Note: flex items are in visual order as "CMYK": cyan, magenta, yellow, black. */
  48   footer {
  49     background: cyan;
  50     block-size: 50px;
  51   }
  52   article {
  53     background: magenta;
  54     block-size: 25px;
  55     align-self: flex-end;
  56   }
  57   nav {
  58     background: yellow;
  59     block-size: 40px;
  60     align-self: center;
  61   }
  62   header {
  63     background: black;
  64     block-size: 50px;
  65     align-self: flex-start;
  66   }
  67
  68   body.multicol-children-block-size > .multicol {
  69     block-size: 50px;
  70   }
  71   </style>
  72
  73   <script>
  74   function runTest() {
  75     document.body.offsetHeight;
  76
  77     /* Enlarge the multicol's block-size to exercise pulling and pushing flex items
  78        of an already fragmented flex container. */
  79     document.body.classList.add("multicol-children-block-size");
  80   }
  81   </script>
  82
  83   <body onload="runTest()">
  84     <!-- Basic one without any margin/border/padding. -->
  85     <div class="multicol">
  86       <div class="flexContainer">
  87         <header></header><nav></nav><article></article><footer></footer>
  88       </div>
  89     </div>
  90
  91     <!-- Test a container with margin-block-start. -->
  92     <div class="multicol">
  93       <div class="flexContainer" style="margin-block-start: 25px">
  94         <header></header><nav></nav><article></article><footer></footer>
  95       </div>
  96     </div>
  97
  98     <!-- Test a container not at the top of the column/page. -->
  99     <div class="multicol">
 100       <div style="block-size: 25px"></div>
 101       <div class="flexContainer">
 102         <header></header><nav></nav><article></article><footer></footer>
 103       </div>
 104     </div>
 105
 106     <!-- Test a container with border and padding. -->
 107     <div class="multicol">
 108       <div class="flexContainer border-padding">
 109         <header></header><nav></nav><article></article><footer></footer>
 110       </div>
 111     </div>
 112
 113     <!-- Test a container with border, padding, and gap. -->
 114     <div class="multicol">
 115       <div class="flexContainer border-padding with-gap">
 116         <header></header><nav></nav><article></article><footer></footer>
 117       </div>
 118     </div>
 119   </body>
 120 </html>