File: test_containing_block_of.html

package info (click to toggle)
firefox 141.0.2-1
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 4,550,616 kB
  • sloc: cpp: 7,426,508; javascript: 6,367,238; ansic: 3,707,354; python: 1,368,984; xml: 623,983; asm: 426,916; java: 184,324; sh: 64,488; makefile: 19,203; objc: 13,059; perl: 12,955; yacc: 4,583; cs: 3,846; pascal: 3,352; lex: 1,720; ruby: 1,071; exp: 762; php: 436; lisp: 258; awk: 247; sql: 66; sed: 54; csh: 10
file content (34 lines) | stat: -rw-r--r-- 1,178 bytes parent folder | download | duplicates (23) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
 
<!doctype html>
<meta charset="utf-8">
<title>Test InspectorUtils.containingBlockOf</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<style>
  #positioned-grid {
    display: grid;
    position: relative;
  }
  .abs {
    position: absolute;
  }
  .fixed {
    position: fixed;
  }
</style>
<div id="positioned-grid">
  <div class="item">
    <div class="abs"></div>
    <div class="fixed"></div>
  </div>
</div>
<script>
const InspectorUtils = SpecialPowers.InspectorUtils;
const abs = document.querySelector(".abs");
const fixed = document.querySelector(".fixed");
const grid = document.querySelector("#positioned-grid");
is(InspectorUtils.containingBlockOf(fixed), null, "CB of fixed pos is the viewport");
is(SpecialPowers.unwrap(InspectorUtils.containingBlockOf(abs)), grid, "CB of abspos is the grid container");
const item = document.querySelector(".item");
item.style.willChange = "transform";
is(SpecialPowers.unwrap(InspectorUtils.containingBlockOf(fixed)), item, "Transformed element is the cb of fixed pos elements");
is(SpecialPowers.unwrap(InspectorUtils.containingBlockOf(abs)), item, "Transformed element is the cb of abspos elements");
</script>