Adding upstream version 1:115.7.0.upstream/1%115.7.0 upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
author: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-07 17:32:43 +0000
committer: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-04-07 17:32:43 +0000
commit: 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch)
tree: a68f146d7fa01f0134297619fbe7e33db084e0aa /testing/web-platform/tests/paint-timing/with-first-paint
parent: Initial commit. (diff)
download: thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz
thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip
16 files changed, 706 insertions, 0 deletions
diff --git a/testing/web-platform/tests/paint-timing/with-first-paint/basetest.html b/testing/web-platform/tests/paint-timing/with-first-paint/basetest.html
new file mode 100644
index 0000000000..759dfaa97a
--- /dev/null
+++ b/testing/web-platform/tests/paint-timing/with-first-paint/basetest.html
@@ -0,0 +1,48 @@
+<!DOCTYPE html>
+<head>
+<title>Performance Paint Timing Test</title>
+</head>
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="main"></div>
+
+<script>
+setup({"hide_test_state": true});
+async_test(function(t) {
+    assert_implements(window.PerformancePaintTiming, "Paint Timing isn't supported.");
+    t.step(function() {
+        const bufferedEntries = performance.getEntriesByType('paint');
+        assert_equals(bufferedEntries.length, 0, "No paint entries yet");
+    });
+    const div = document.createElement("div");
+    div.style.width = "100px";
+    div.style.height = "100px";
+    div.style.backgroundColor = "red";
+    div.style.color = "blue";
+    div.innerHTML = "test"
+    document.getElementById("main").appendChild(div);
+    function testPaintEntries() {
+        const bufferedEntries = performance.getEntriesByType('paint');
+        if (bufferedEntries.length < 2) {
+            t.step_timeout(function() {
+                testPaintEntries();
+            }, 20);
+            return;
+        }
+        t.step(function() {
+            assert_equals(bufferedEntries.length, 2, "FP and FCP.");
+            assert_equals(bufferedEntries[0].entryType, "paint");
+            assert_equals(bufferedEntries[0].name, "first-paint");
+            assert_equals(bufferedEntries[1].entryType, "paint");
+            assert_equals(bufferedEntries[1].name, "first-contentful-paint");
+            t.done();
+        });
+    }
+    t.step(function() {
+        testPaintEntries();
+    });
+}, "Basic test to check existence of FP and FCP.");
+</script>
+</body>
+</html>
diff --git a/testing/web-platform/tests/paint-timing/with-first-paint/border-image.html b/testing/web-platform/tests/paint-timing/with-first-paint/border-image.html
new file mode 100644
index 0000000000..4abccfe8e8
--- /dev/null
+++ b/testing/web-platform/tests/paint-timing/with-first-paint/border-image.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="../resources/utils.js"></script>
+<style>
+  #bordered {
+    width: 100px;
+    height: 100px;
+    border: 30px solid transparent;
+    border-image-source: url(../resources/circle.svg);
+    border-image-width: 0px;
+  }
+</style>
+<div id='bordered'></div>
+<script>
+setup({"hide_test_state": true});
+promise_test(async t => {
+  const onload = new Promise(r => window.addEventListener('load', r));
+  await onload;
+  return assertNoFirstContentfulPaint(t).then(() => {
+    document.getElementById('bordered').style.borderImageWidth = '30px';
+  }).then(() => {
+    return assertFirstContentfulPaint(t);
+  });
+}, 'Border image triggers First Contentful Paint.');
+</script>
+</body>
diff --git a/testing/web-platform/tests/paint-timing/with-first-paint/buffered-flag.window.js b/testing/web-platform/tests/paint-timing/with-first-paint/buffered-flag.window.js
new file mode 100644
index 0000000000..0b7c8bea2e
--- /dev/null
+++ b/testing/web-platform/tests/paint-timing/with-first-paint/buffered-flag.window.js
@@ -0,0 +1,36 @@
+setup({"hide_test_state": true});
+async_test(t => {
+  assert_implements(window.PerformancePaintTiming, "Paint Timing isn't supported.");
+  // First observer creates second in callback to ensure the entry has been dispatched by the time
+  // the second observer begins observing.
+  let entries_seen = 0;
+  new PerformanceObserver(firstList => {
+    entries_seen += firstList.getEntries().length;
+    // Abort if we have not yet received both paint entries.
+    if (entries_seen < 2)
+      return;
+
+    // Second observer requires 'buffered: true' to see the entries.
+    let firstPaintSeen = false;
+    let firstContentfulPaintSeen = false;
+    new PerformanceObserver(list => {
+      list.getEntries().forEach(t.step_func(entry => {
+        assert_equals(entry.entryType, 'paint');
+        if (entry.name === 'first-paint')
+          firstPaintSeen = true;
+        else if (entry.name === 'first-contentful-paint')
+          firstContentfulPaintSeen = true;
+        else
+          assert_unreached('The observer should only see first paint or first contentful paint!');
+
+        if (firstPaintSeen && firstContentfulPaintSeen)
+          t.done();
+      }));
+    }).observe({'type': 'paint', buffered: true});
+  }).observe({'entryTypes': ['paint']});
+
+  // Trigger the first paint entries
+  const img = document.createElement("IMG");
+  img.src = "resources/circles.png";
+  document.body.appendChild(img);
+}, "PerformanceObserver with buffered flag sees previous paint entries.");
diff --git a/testing/web-platform/tests/paint-timing/with-first-paint/child-painting-first-image.html b/testing/web-platform/tests/paint-timing/with-first-paint/child-painting-first-image.html
new file mode 100644
index 0000000000..92a926a2b9
--- /dev/null
+++ b/testing/web-platform/tests/paint-timing/with-first-paint/child-painting-first-image.html
@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<script>
+var entriesExpectToReceive = [
+    {
+        'entryType': 'paint',
+        'name': 'first-paint'
+    },
+    {
+        'entryType': 'paint',
+        'name': 'first-contentful-paint'
+    }
+];
+
+setup({"hide_test_state": true});
+async_test(function (t) {
+    assert_implements(window.PerformancePaintTiming, "Paint Timing isn't supported.");
+    window.addEventListener('message', t.step_func(e => {
+        // When only child frame paints, expect only first-paint.
+        for (let i = 0; i < entriesExpectToReceive.length; i++) {
+            if (entriesExpectToReceive[i].entryType == e.data.entryType &&
+                entriesExpectToReceive[i].name == e.data.name) {
+                entriesExpectToReceive.splice(i, 1);
+                break;
+            }
+        }
+
+        if (entriesExpectToReceive.length == 0) {
+            const bufferedEntries = performance.getEntriesByType('paint');
+            assert_equals(bufferedEntries.length, 1);
+            assert_equals(bufferedEntries[0].entryType, 'paint');
+            assert_equals(bufferedEntries[0].name, 'first-paint');
+            t.done();
+        }
+    }));
+    const iframe = document.createElement('iframe');
+    iframe.id = 'child-iframe';
+    iframe.src = '../resources/subframe-painting.html';
+    document.body.appendChild(iframe);
+}, 'Parent frame ignores paint-timing events fired from child image rendering.');
+</script>
+</body>
+</html>
diff --git a/testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-bg-image.html b/testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-bg-image.html
new file mode 100644
index 0000000000..40eaa635bb
--- /dev/null
+++ b/testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-bg-image.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<head>
+<title>Performance Paint Timing Test: FCP due to background image</title>
+</head>
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="main"></div>
+</body>
+
+<footer>
+<script>
+setup({"hide_test_state": true});
+async_test(function (t) {
+    assert_implements(window.PerformancePaintTiming, "Paint Timing isn't supported.");
+    const body = document.getElementsByTagName('body')[0];
+    body.style.backgroundImage = 'url(../resources/circles.png)';
+    window.onload = function() {
+        function testPaintEntries() {
+            const bufferedEntries = performance.getEntriesByType('paint');
+            if (bufferedEntries.length < 2) {
+                t.step_timeout(function() {
+                    testPaintEntries();
+                }, 20);
+                return;
+            }
+            t.step(function() {
+                assert_equals(bufferedEntries.length, 2, "There should be two paint timing instances.");
+                assert_equals(bufferedEntries[0].entryType, "paint");
+                assert_equals(bufferedEntries[0].name, "first-paint");
+                assert_equals(bufferedEntries[1].entryType, "paint");
+                assert_equals(bufferedEntries[1].name, "first-contentful-paint");
+                t.done();
+            });
+        }
+        t.step(function() {
+            testPaintEntries();
+        });
+    };
+}, "First contentful paint fires due to background image render.");
+</script>
+<footer>
+</html>
diff --git a/testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-canvas-webgl2.html b/testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-canvas-webgl2.html
new file mode 100644
index 0000000000..f7c5f50ecb
--- /dev/null
+++ b/testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-canvas-webgl2.html
@@ -0,0 +1,47 @@
+<!DOCTYPE html>
+
+<head>
+  <title>Performance Paint Timing Test: FCP due to canvas</title>
+</head>
+
+<body>
+  <script src="/resources/testharness.js"></script>
+  <script src="/resources/testharnessreport.js"></script>
+  <canvas id="canvas" width="200" height="200"></canvas>
+
+  <script>
+    setup({ "hide_test_state": true });
+    async_test(function (t) {
+      assert_implements(window.PerformancePaintTiming, "Paint Timing isn't supported.");
+      const canvas = document.getElementById("canvas");
+      const context = canvas.getContext("webgl2");
+      if (!context) {
+        assert_implements_optional(context, "WebGL 2 Canvas isn't supported.")
+      }
+      context.clearColor(0.3, 0.3, 0.3, 1);
+      context.clear(context.COLOR_BUFFER_BIT);
+      function testPaintEntries() {
+        const bufferedEntries = performance.getEntriesByType('paint');
+        if (bufferedEntries.length < 2) {
+          t.step_timeout(function () {
+            testPaintEntries();
+          }, 20);
+          return;
+        }
+        t.step(function () {
+          assert_equals(bufferedEntries.length, 2, "There should be two paint timing instances.");
+          assert_equals(bufferedEntries[0].entryType, "paint");
+          assert_equals(bufferedEntries[0].name, "first-paint");
+          assert_equals(bufferedEntries[1].entryType, "paint");
+          assert_equals(bufferedEntries[1].name, "first-contentful-paint");
+          t.done();
+        });
+      };
+      t.step(function () {
+        testPaintEntries();
+      });
+    }, "First contentful paint fires due to webgl2 canvas render.");
+  </script>
+</body>
+
+</html>
diff --git a/testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-canvas.html b/testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-canvas.html
new file mode 100644
index 0000000000..e6a4365b76
--- /dev/null
+++ b/testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-canvas.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<head>
+<title>Performance Paint Timing Test: FCP due to canvas</title>
+</head>
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<canvas id="canvas" width="200" height="200" ></canvas>
+
+<script>
+setup({"hide_test_state": true});
+async_test(function (t) {
+    assert_implements(window.PerformancePaintTiming, "Paint Timing isn't supported.");
+    const canvas = document.getElementById("canvas");
+    const context = canvas.getContext("2d");
+    context.beginPath();
+    context.moveTo(0,0);
+    context.lineTo(300,150);
+    context.stroke();
+    function testPaintEntries() {
+        const bufferedEntries = performance.getEntriesByType('paint');
+        if (bufferedEntries.length < 2) {
+            t.step_timeout(function() {
+                testPaintEntries();
+            }, 20);
+            return;
+        }
+        t.step(function() {
+            assert_equals(bufferedEntries.length, 2, "There should be two paint timing instances.");
+            assert_equals(bufferedEntries[0].entryType, "paint");
+            assert_equals(bufferedEntries[0].name, "first-paint");
+            assert_equals(bufferedEntries[1].entryType, "paint");
+            assert_equals(bufferedEntries[1].name, "first-contentful-paint");
+            t.done();
+        });
+    };
+    t.step(function() {
+        testPaintEntries();
+    });
+}, "First contentful paint fires due to canvas render.");
+</script>
+</body>
+</html>
diff --git a/testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-image.html b/testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-image.html
new file mode 100644
index 0000000000..504a07dd43
--- /dev/null
+++ b/testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-image.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<head>
+<title>Performance Paint Timing Test: FCP due to image</title>
+</head>
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="image"></div>
+
+<script>
+setup({"hide_test_state": true});
+async_test(function (t) {
+    assert_implements(window.PerformancePaintTiming, "Paint Timing isn't supported.");
+    const img = document.createElement("IMG");
+    img.src = "../resources/circles.png";
+    img.onload = function() {
+        function testPaintEntries() {
+            const bufferedEntries = performance.getEntriesByType('paint');
+            if (bufferedEntries.length < 2) {
+                t.step_timeout(function() {
+                    testPaintEntries();
+                }, 20);
+                return;
+            }
+            t.step(function() {
+                assert_equals(bufferedEntries.length, 2, "There should be two paint timing instances.");
+                assert_equals(bufferedEntries[0].entryType, "paint");
+                assert_equals(bufferedEntries[0].name, "first-paint");
+                assert_equals(bufferedEntries[1].entryType, "paint");
+                assert_equals(bufferedEntries[1].name, "first-contentful-paint");
+                t.done();
+            })
+        }
+        t.step(function() {
+            testPaintEntries();
+        });
+    };
+    document.getElementById('image').appendChild(img);
+}, "First contentful paint fires due to image render.");
+</script>
+</body>
+</html>
diff --git a/testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-paint.html b/testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-paint.html
new file mode 100644
index 0000000000..7d23155b0d
--- /dev/null
+++ b/testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-paint.html
@@ -0,0 +1,76 @@
+<!DOCTYPE html>
+<head>
+<title>Performance Paint Timing Test: FP followed by FCP</title>
+</head>
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="main"></div>
+<div id="image"></div>
+
+<script>
+setup({"hide_test_state": true});
+async_test(function (t) {
+    assert_implements(window.PerformancePaintTiming, "Paint Timing isn't supported.");
+    const bufferedEntries = performance.getEntriesByType('paint');
+    assert_equals(bufferedEntries.length, 0, "No paint entries yet");
+    const div = document.createElement("div");
+    div.style.width = "100px";
+    div.style.height = "100px";
+    div.style.backgroundColor = "red";
+    div.style.color = "blue";
+    document.getElementById("main").appendChild(div);
+    function testPaintEntries() {
+      const bufferedEntries = performance.getEntriesByType('paint');
+      if (bufferedEntries.length < 1) {
+        t.step_timeout(function() {
+          testPaintEntries();
+        }, 20);
+        return;
+      }
+      t.step(function() {
+        assert_equals(bufferedEntries.length, 1, "FP only.");
+        assert_equals(bufferedEntries[0].entryType, "paint");
+        assert_equals(bufferedEntries[0].name, "first-paint");
+      });
+      const img = document.createElement("IMG");
+      img.src = "../resources/circles.png";
+      img.onload = function() {
+        function secondTestPaintEntries() {
+          const moreBufferedEntries = performance.getEntriesByType('paint');
+          if (moreBufferedEntries.length < 2) {
+            t.step_timeout(function() {
+              secondTestPaintEntries();
+            }, 20);
+            return;
+          }
+          t.step(function() {
+            assert_equals(moreBufferedEntries.length, 2, "FP and FCP.");
+            assert_equals(moreBufferedEntries[0].entryType, "paint");
+            assert_equals(moreBufferedEntries[0].name, "first-paint");
+            const fpEntriesGotByName =
+                performance.getEntriesByName('first-paint');
+            assert_equals(fpEntriesGotByName.length, 1);
+            assert_equals(moreBufferedEntries[0], fpEntriesGotByName[0]);
+            assert_equals(moreBufferedEntries[1].entryType, "paint");
+            assert_equals(moreBufferedEntries[1].name, "first-contentful-paint");
+            const fcpEntriesGotByName =
+                performance.getEntriesByName('first-contentful-paint');
+            assert_equals(fcpEntriesGotByName.length, 1);
+            assert_equals(moreBufferedEntries[1], fcpEntriesGotByName[0]);
+            t.done();
+          });
+        }
+        t.step(function() {
+          secondTestPaintEntries();
+        });
+      };
+      document.getElementById('image').appendChild(img);
+    }
+    t.step(function() {
+      testPaintEntries();
+    });
+}, "First Paint triggered by non-contentful paint. Image load triggers First Contentful Paint.");
+</script>
+</body>
+</html>
diff --git a/testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-svg.html b/testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-svg.html
new file mode 100644
index 0000000000..74799a2ecd
--- /dev/null
+++ b/testing/web-platform/tests/paint-timing/with-first-paint/first-contentful-svg.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<head>
+<title>Performance Paint Timing Test: FCP due to SVG</title>
+</head>
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="svg"></div>
+
+<script>
+setup({"hide_test_state": true});
+async_test(function (t) {
+    assert_implements(window.PerformancePaintTiming, "Paint Timing isn't supported.");
+    const img = document.createElement("IMG");
+    img.src = "../resources/circle.svg";
+    img.onload = function() {
+        function testPaintEntries() {
+            const bufferedEntries = performance.getEntriesByType('paint');
+            if (bufferedEntries.length < 2) {
+              t.step_timeout(function() {
+                testPaintEntries();
+              }, 20);
+              return;
+            }
+            t.step(function() {
+                assert_equals(bufferedEntries.length, 2, "There should be two paint timing instances.");
+                assert_equals(bufferedEntries[0].entryType, "paint");
+                assert_equals(bufferedEntries[0].name, "first-paint");
+                assert_equals(bufferedEntries[1].entryType, "paint");
+                assert_equals(bufferedEntries[1].name, "first-contentful-paint");
+                t.done();
+            });
+        }
+        t.step(function() {
+            testPaintEntries();
+        });
+    };
+    document.getElementById('svg').appendChild(img);
+}, "First contentful paint fires due to svg.");
+</script>
+</body>
+</html>
diff --git a/testing/web-platform/tests/paint-timing/with-first-paint/first-image-child.html b/testing/web-platform/tests/paint-timing/with-first-paint/first-image-child.html
new file mode 100644
index 0000000000..5c24527cf5
--- /dev/null
+++ b/testing/web-platform/tests/paint-timing/with-first-paint/first-image-child.html
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<head>
+<title>Performance Paint Timing Test: child ignores parent FCP</title>
+<meta name="timeout" content="long">
+</head>
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<iframe src='../resources/subframe-sending-paint.html' id='child-iframe'></iframe>
+<img src='../resources/circles.png'/>
+<script>
+setup({"hide_test_state": true});
+async_test(function (t) {
+    assert_implements(window.PerformancePaintTiming, "Paint Timing isn't supported.");
+
+    window.addEventListener('message', t.step_func(e => {
+        // Child iframe should not have any paint-timing entries.
+        assert_equals(e.data, '0');
+        t.done();
+    }));
+    // Wait for onload to ensure img and iframe have loaded.
+    window.addEventListener('load', function() {
+        function testPaintEntries() {
+            const bufferedEntries = performance.getEntriesByType('paint');
+            if (bufferedEntries.length < 2) {
+                t.step_timeout(testPaintEntries, 20);
+                return;
+            }
+            t.step(function() {
+                assert_equals(bufferedEntries.length, 2, 'There should be two paint timing instances.');
+                assert_equals(bufferedEntries[0].entryType, 'paint');
+                assert_equals(bufferedEntries[0].name, 'first-paint');
+                assert_equals(bufferedEntries[1].entryType, 'paint');
+                assert_equals(bufferedEntries[1].name, 'first-contentful-paint');
+                // Ask child iframe to send its paint-timing entries.
+                document.getElementById('child-iframe').
+                    contentWindow.postMessage('', '*');
+            })
+        }
+        testPaintEntries();
+    });
+}, 'Child iframe ignores paint-timing events fired from parent image rendering.');
+</script>
+</body>
+</html>
diff --git a/testing/web-platform/tests/paint-timing/with-first-paint/first-paint-bg-color.html b/testing/web-platform/tests/paint-timing/with-first-paint/first-paint-bg-color.html
new file mode 100644
index 0000000000..a4f799045f
--- /dev/null
+++ b/testing/web-platform/tests/paint-timing/with-first-paint/first-paint-bg-color.html
@@ -0,0 +1,39 @@
+<!DOCTYPE html>
+<head>
+<title>Performance Paint Timing Test: FP due to background color</title>
+</head>
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="main"></div>
+</body>
+
+<footer>
+<script>
+setup({"hide_test_state": true});
+async_test(function (t) {
+    assert_implements(window.PerformancePaintTiming, "Paint Timing isn't supported.");
+    document.body.style.backgroundColor = "#AA0000";
+
+    function testPaintEntries() {
+      const bufferedEntries = performance.getEntriesByType('paint');
+      if (bufferedEntries.length < 1) {
+        t.step_timeout(function() {
+          testPaintEntries();
+        }, 20);
+        return;
+      }
+      t.step(function() {
+        assert_equals(bufferedEntries.length, 1, "FP should fire for background color, not FCP");
+        assert_equals(bufferedEntries[0].entryType, "paint");
+        assert_equals(bufferedEntries[0].name, "first-paint");
+        t.done();
+      });
+    }
+    t.step(function() {
+      testPaintEntries();
+    })
+}, "First paint fires due to background color. No FCP");
+</script>
+<footer>
+</html>
diff --git a/testing/web-platform/tests/paint-timing/with-first-paint/first-paint-only.html b/testing/web-platform/tests/paint-timing/with-first-paint/first-paint-only.html
new file mode 100644
index 0000000000..473b1aa121
--- /dev/null
+++ b/testing/web-platform/tests/paint-timing/with-first-paint/first-paint-only.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<head>
+<title>Performance Paint Timing Test: FP only</title>
+</head>
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="main"></div>
+
+<script>
+setup({"hide_test_state": true});
+async_test(function (t) {
+    assert_implements(window.PerformancePaintTiming, "Paint Timing isn't supported.");
+    const div = document.createElement("div");
+    div.style.width = "100px";
+    div.style.height = "100px";
+    div.style.backgroundColor = "red";
+    div.style.color = "blue";
+    document.getElementById("main").appendChild(div);
+
+    function testPaintEntries() {
+        const bufferedEntries = performance.getEntriesByType('paint');
+        if (bufferedEntries.length < 1) {
+          t.step_timeout(function() {
+            testPaintEntries();
+          }, 20);
+          return;
+        }
+        t.step(function() {
+            assert_equals(bufferedEntries.length, 1, "FP only.");
+            assert_equals(bufferedEntries[0].entryType, "paint");
+            assert_equals(bufferedEntries[0].name, "first-paint");
+            t.done();
+        });
+    }
+    t.step(function() {
+      testPaintEntries();
+    })
+}, "Performance first paint timing entry exists. No first contentful paint.");
+</script>
+</body>
+</html>
diff --git a/testing/web-platform/tests/paint-timing/with-first-paint/mask-image.html b/testing/web-platform/tests/paint-timing/with-first-paint/mask-image.html
new file mode 100644
index 0000000000..e69e562d10
--- /dev/null
+++ b/testing/web-platform/tests/paint-timing/with-first-paint/mask-image.html
@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="../resources/utils.js"></script>
+<style>
+  #masked {
+    width: 0px;
+    height: 100px;
+    -webkit-mask-image: url(../resources/circle.svg);
+    mask-image: url(../resources/circle.svg);
+  }
+</style>
+<div id='masked'></div>
+<script>
+setup({"hide_test_state": true});
+promise_test(async t => {
+  const onload = new Promise(r => window.addEventListener('load', r));
+  await onload;
+  return assertNoFirstContentfulPaint(t).then(() => {
+    document.getElementById('masked').style.width = '100px';
+  }).then(() => {
+    return assertFirstContentfulPaint(t);
+  });
+}, 'Mask image triggers First Contentful Paint.');
+</script>
+</body>
diff --git a/testing/web-platform/tests/paint-timing/with-first-paint/paint-visited.html b/testing/web-platform/tests/paint-timing/with-first-paint/paint-visited.html
new file mode 100644
index 0000000000..c02ea24052
--- /dev/null
+++ b/testing/web-platform/tests/paint-timing/with-first-paint/paint-visited.html
@@ -0,0 +1,48 @@
+<!DOCTYPE html>
+<style>
+  a:visited {
+    color:white;
+  }
+</style>
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<a id="link" href="./">link</a>
+<script>
+/* This test ensures that an empty page is painted when there is an invisible visited link (that
+would be visible if the link was not visited). It's necessary that whether the page is painted or
+not does not depend on visitedness of the link. Otherwise the paint-timing API could be used to
+sniff whether a link has been visited or not. */
+window.onload = function() {
+  /* Convenience helper to get the link into the browsing history.
+    Using a relative path because some browsers only allow replaceState within the same domain. */
+  current_url = window.location.href;
+  history.replaceState({}, "", "./");
+  history.replaceState({}, "", current_url);
+}
+setup({"hide_test_state": true});
+async_test(function(t) {
+  assert_implements(window.PerformancePaintTiming, "Paint Timing isn't supported.");
+  function testPaintEntries() {
+      const bufferedEntries = performance.getEntriesByType('paint');
+      if (bufferedEntries.length < 2) {
+          t.step_timeout(function() {
+              testPaintEntries();
+          }, 20);
+          return;
+      }
+      t.step(function() {
+          assert_equals(bufferedEntries.length, 2, "FP and FCP.");
+          assert_equals(bufferedEntries[0].entryType, "paint");
+          assert_equals(bufferedEntries[0].name, "first-paint");
+          assert_equals(bufferedEntries[1].entryType, "paint");
+          assert_equals(bufferedEntries[1].name, "first-contentful-paint");
+          t.done();
+      });
+  }
+  t.step(function() {
+      testPaintEntries();
+  });
+}, "Visited-attack test to check existence of FP and FCP.");
+</script>
+</body>
diff --git a/testing/web-platform/tests/paint-timing/with-first-paint/sibling-painting-first-image.html b/testing/web-platform/tests/paint-timing/with-first-paint/sibling-painting-first-image.html
new file mode 100644
index 0000000000..d393795e2d
--- /dev/null
+++ b/testing/web-platform/tests/paint-timing/with-first-paint/sibling-painting-first-image.html
@@ -0,0 +1,54 @@
+<!DOCTYPE html>
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+ <!-- This iframe will have a sibling that paints, we want to ensure it does not detect that paint. -->
+<iframe id="listening-iframe" src="../resources/subframe-sending-paint.html"></iframe>
+<script>
+setup({"hide_test_state": true});
+var entriesExpectToReceive = [
+    {
+        'entryType': 'paint',
+        'name': 'first-paint'
+    },
+    {
+        'entryType': 'paint',
+        'name': 'first-contentful-paint'
+    }
+];
+async_test(function (t) {
+    assert_implements(window.PerformancePaintTiming, "Paint Timing isn't supported.");
+    let paintingIframeHasDispatchedEntries = false;
+    window.addEventListener('message', t.step_func(e => {
+        if (!paintingIframeHasDispatchedEntries) {
+            // Check paint-timing entries from the painting iframe.
+            for (let i = 0; i < entriesExpectToReceive.length; i++) {
+                if (entriesExpectToReceive[i].entryType == e.data.entryType &&
+                    entriesExpectToReceive[i].name == e.data.name) {
+                    entriesExpectToReceive.splice(i, 1);
+                    break;
+                }
+            }
+            if (entriesExpectToReceive.length == 0) {
+                paintingIframeHasDispatchedEntries = true;
+                // Ask the listening iframe to send its paint-timing entries.
+                document.getElementById('listening-iframe').
+                    contentWindow.postMessage('', '*');
+            }
+            return;
+        }
+        // Check the paint-timing entries from the listening iframe.
+        assert_equals(e.data, '0');
+        // Check that current frame receives first-paint but not first-contentful-paint.
+        const bufferedEntries = performance.getEntriesByType('paint');
+        assert_equals(bufferedEntries.length, 1);
+        assert_equals(bufferedEntries[0].entryType, 'paint');
+        assert_equals(bufferedEntries[0].name, 'first-paint');
+        t.done();
+    }));
+}, 'Frame ignores paint-timing events fired from sibling frame.');
+</script>
+<!-- This iframe is where all of the painting occurs. -->
+<iframe id="painting-iframe" src="../resources/subframe-painting.html"></iframe>
+</body>
+</html>
author	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-07 17:32:43 +0000
committer	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-04-07 17:32:43 +0000
commit	6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch)
tree	a68f146d7fa01f0134297619fbe7e33db084e0aa /testing/web-platform/tests/paint-timing/with-first-paint
parent	Initial commit. (diff)
download	thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip