<!DOCTYPE html>
<title>Custom Functions: Conditionals within @function</title>
<link rel="help" href="https://drafts.csswg.org/css-mixins-1/#conditional-rules">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/utils.js"></script>

<style>
  #container {
    container-type: size;
    width: 100px;
    height: 50px;
  }
</style>
<div id=container>
  <div id=target></div>
<div>
<div id=main></div>

<!-- To pass, a test must produce matching computed values for --actual and
     --expected on #target. -->

<template data-name="Basic @supports">
  <style>
    @function --f() {
      result: FAIL;
      @supports (width: 100px) {
        result: PASS;
      }
    }
    #target {
      --actual: --f();
      --expected: PASS;
    }
  </style>
</template>

<template data-name="Basic @supports (false)">
  <style>
    @function --f() {
      result: PASS;
      @supports (not (width: 100px)) {
        result: FAIL;
      }
    }
    #target {
      --actual: --f();
      --expected: PASS;
    }
  </style>
</template>

<template data-name="Nested @supports">
  <style>
    @function --f() {
      result: FAIL;
      @supports (not (width: red)) {
        @supports (height: 100px) {
          result: PASS;
        }
      }
    }
    #target {
      --actual: --f();
      --expected: PASS;
    }
  </style>
</template>

<template data-name="Nested @supports (false)">
  <style>
    @function --f() {
      result: FAIL-outer;
      @supports (not (width: red)) {
        result: PASS;
        @supports (height: red) {
          result: FAIL-inner;
        }
      }
    }
    #target {
      --actual: --f();
      --expected: PASS;
    }
  </style>
</template>

<template data-name="Inconsequential conditional">
  <style>
    @function --f() {
      @supports (width: 100px) {
        result: FAIL;
      }
      result: PASS;
    }
    #target {
      --actual: --f();
      --expected: PASS;
    }
  </style>
</template>

<template data-name="@supports with locals">
  <style>
    @function --f(--x) {
      --y: 2;
      --z: 3;
      @supports (width: 100px) {
        --y: 20;
      }
      result: var(--x) var(--y) var(--z);
    }
    #target {
      --actual: --f(1);
      --expected: 1 20 3;
    }
  </style>
</template>

<!-- @media -->

<template data-name="Basic @media">
  <style>
    @function --f() {
      result: FAIL;
      @media (width > 0px) {
        result: PASS;
      }
    }
    #target {
      --actual: --f();
      --expected: PASS;
    }
  </style>
</template>

<template data-name="Basic @media (false)">
  <style>
    @function --f() {
      result: PASS;
      @media (not (width)) {
        result: FAIL;
      }
    }
    #target {
      --actual: --f();
      --expected: PASS;
    }
  </style>
</template>

<template data-name="Nested @media">
  <style>
    @function --f() {
      result: FAIL;
      @media (width > 0px) {
        @media (not (height: 99999999px)) {
          result: PASS;
        }
        @media (width: 99999999px) {
          result: FAIL;
        }
      }
    }
    #target {
      --actual: --f();
      --expected: PASS;
    }
  </style>
</template>

<template data-name="Nested @media (false)">
  <style>
    @function --f() {
      result: PASS;
      @media (not (width > 0px)) {
        @media (not (height: 99999999px)) {
          result: FAIL;
        }
        @media (width: 99999999px) {
          result: FAIL;
        }
      }
    }
    #target {
      --actual: --f();
      --expected: PASS;
    }
  </style>
</template>

<template data-name="Locals within @media">
  <style>
    @function --f() {
      --x: FAIL;
      @media (width > 0px) {
        --x: PASS;
      }
      result: var(--x);
    }
    #target {
      --actual: --f();
      --expected: PASS;
    }
  </style>
</template>

<template data-name="@supports within @media">
  <style>
    @function --f() {
      --x: FAIL;
      @media (width > 0px) {
        @supports (color: green) {
          --x: PASS;
        }
        @supports (not (color: green)) {
          --x: FAIL;
        }
      }
      result: var(--x);
    }
    #target {
      --actual: --f();
      --expected: PASS;
    }
  </style>
</template>

<template data-name="@media within @supports">
  <style>
    @function --f() {
      --x: FAIL;
      @supports (color: green) {
        @media (width > 0px) {
          --x: PASS;
        }
        @media (width = 99999999999px) {
          --x: FAIL;
        }
      }
      result: var(--x);
    }
    #target {
      --actual: --f();
      --expected: PASS;
    }
  </style>
</template>


<!-- @container -->

<template data-name="Basic @container">
  <style>
    @function --f() {
      result: FAIL;
      @container (width = 100px) {
        result: PASS;
      }
    }
    #target {
      --actual: --f();
      --expected: PASS;
    }
  </style>
</template>

<template data-name="Basic @container (false)">
  <style>
    @function --f() {
      result: PASS;
      @container (width = 110px) {
        result: FAIL;
      }
    }
    #target {
      --actual: --f();
      --expected: PASS;
    }
  </style>
</template>

<template data-name="Nested @container">
  <style>
    @function --f() {
      result: FAIL;
      @container (width = 100px) {
        @container (not (height = 75px)) {
          result: PASS;
        }
        @container (height: 75px) {
          result: FAIL;
        }
      }
    }
    #target {
      --actual: --f();
      --expected: PASS;
    }
  </style>
</template>

<template data-name="Nested @container (false)">
  <style>
    @function --f() {
      result: PASS;
      @container (width = 200px) {
        @container (not (height = 75px)) {
          result: FAIL;
        }
        @container (width: 75px) {
          result: FAIL;
        }
      }
    }
    #target {
      --actual: --f();
      --expected: PASS;
    }
  </style>
</template>

<template data-name="Locals within @container">
  <style>
    @function --f() {
      --x: FAIL;
      @container (width = 100px) {
        --x: PASS;
      }
      result: var(--x);
    }
    #target {
      --actual: --f();
      --expected: PASS;
    }
  </style>
</template>

<template data-name="@supports within @container">
  <style>
    @function --f() {
      --x: FAIL;
      @container (width = 100px) {
        @supports (color: green) {
          --x: PASS;
        }
        @supports (not (color: green)) {
          --x: FAIL;
        }
      }
      result: var(--x);
    }
    #target {
      --actual: --f();
      --expected: PASS;
    }
  </style>
</template>

<template data-name="@container within @supports">
  <style>
    @function --f() {
      --x: FAIL;
      @supports (color: green) {
        @container (width = 100px) {
          --x: PASS;
        }
        @container (width = 75px) {
          --x: FAIL;
        }
      }
      result: var(--x);
    }
    #target {
      --actual: --f();
      --expected: PASS;
    }
  </style>
</template>

<template data-name="@container, @media, @supports">
  <style>
    @function --f() {
      --x: FAIL;
      @container (width = 100px) {
        @media (width > 0px) {
          @supports (color: red) {
            --x: PASS;
          }
        }
      }
      result: var(--x);
    }
    #target {
      --actual: --f();
      --expected: PASS;
    }
  </style>
</template>

<template data-name="@supports, @media, @container">
  <style>
    @function --f() {
      --x: FAIL;
      @supports (color: red) {
        @media (width > 0px) {
          @container (width = 100px) {
            --x: PASS;
          }
        }
      }
      result: var(--x);
    }
    #target {
      --actual: --f();
      --expected: PASS;
    }
  </style>
</template>

<script>
  test_all_templates();
</script>