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-rw-r--r--layout/style/test/mochitest.ini1
-rw-r--r--layout/style/test/test_animations.html3
-rw-r--r--layout/style/test/test_animations_event_handler_attribute.html40
-rw-r--r--layout/style/test/test_animations_event_order.html117
-rw-r--r--layout/style/test/test_animations_omta.html3
-rw-r--r--layout/style/test/test_dynamic_change_causing_reflow.html107
-rw-r--r--layout/style/test/test_viewport_scrollbar_causing_reflow.html125
7 files changed, 364 insertions, 32 deletions
diff --git a/layout/style/test/mochitest.ini b/layout/style/test/mochitest.ini
index 406c6f901..8182691ca 100644
--- a/layout/style/test/mochitest.ini
+++ b/layout/style/test/mochitest.ini
@@ -295,6 +295,7 @@ skip-if = toolkit == 'android'
[test_variables.html]
support-files = support/external-variable-url.css
[test_video_object_fit.html]
+[test_viewport_scrollbar_causing_reflow.html]
[test_viewport_units.html]
[test_visited_image_loading.html]
skip-if = toolkit == 'android' #TIMED_OUT
diff --git a/layout/style/test/test_animations.html b/layout/style/test/test_animations.html
index eaccba122..4019af77f 100644
--- a/layout/style/test/test_animations.html
+++ b/layout/style/test/test_animations.html
@@ -1195,9 +1195,6 @@ is_approx(px_to_num(cs.marginRight), 100 * gTF.ease_in(0.4), 0.01,
"large negative delay test at 0ms");
check_events([{ type: 'animationstart', target: div,
animationName: 'anim2', elapsedTime: 3.6,
- pseudoElement: "" },
- { type: 'animationiteration', target: div,
- animationName: 'anim2', elapsedTime: 3.6,
pseudoElement: "" }],
"right after start in large negative delay test");
advance_clock(380);
diff --git a/layout/style/test/test_animations_event_handler_attribute.html b/layout/style/test/test_animations_event_handler_attribute.html
index e5def2b34..036a77779 100644
--- a/layout/style/test/test_animations_event_handler_attribute.html
+++ b/layout/style/test/test_animations_event_handler_attribute.html
@@ -88,21 +88,55 @@ checkReceivedEvents("animationend", targets);
targets.forEach(div => { div.remove(); });
-// 2. Test CSS Transition event handlers.
+// 2a. Test CSS Transition event handlers (without transitioncancel)
-var targets = createAndRegisterTargets([ 'ontransitionend' ]);
+var targets = createAndRegisterTargets([ 'ontransitionrun',
+ 'ontransitionstart',
+ 'ontransitionend',
+ 'ontransitioncancel' ]);
targets.forEach(div => {
- div.style.transition = 'margin-left 100ms';
+ div.style.transition = 'margin-left 100ms 200ms';
getComputedStyle(div).marginLeft; // flush
div.style.marginLeft = "200px";
getComputedStyle(div).marginLeft; // flush
});
+advance_clock(0);
+checkReceivedEvents("transitionrun", targets);
+
+advance_clock(200);
+checkReceivedEvents("transitionstart", targets);
+
advance_clock(100);
checkReceivedEvents("transitionend", targets);
targets.forEach(div => { div.remove(); });
+// 2b. Test CSS Transition cancel event handler.
+
+var targets = createAndRegisterTargets([ 'ontransitioncancel' ]);
+targets.forEach(div => {
+ div.style.transition = 'margin-left 100ms 200ms';
+ getComputedStyle(div).marginLeft; // flush
+ div.style.marginLeft = "200px";
+ getComputedStyle(div).marginLeft; // flush
+});
+
+advance_clock(200);
+
+targets.forEach(div => {
+ div.style.display = "none"
+});
+getComputedStyle(targets[0]).display; // flush
+
+advance_clock(0);
+checkReceivedEvents("transitioncancel", targets);
+
+advance_clock(100);
+targets.forEach( div => { is(div.receivedEventType, undefined); });
+
+targets.forEach(div => { div.remove(); });
+
// 3. Test prefixed CSS Animation event handlers.
var targets = createAndRegisterTargets([ 'onwebkitanimationstart',
diff --git a/layout/style/test/test_animations_event_order.html b/layout/style/test/test_animations_event_order.html
index 5af7639cc..7204934d2 100644
--- a/layout/style/test/test_animations_event_order.html
+++ b/layout/style/test/test_animations_event_order.html
@@ -46,7 +46,10 @@ var gDisplay = document.getElementById('display');
[ 'animationstart',
'animationiteration',
'animationend',
- 'transitionend' ]
+ 'transitionrun',
+ 'transitionstart',
+ 'transitionend',
+ 'transitioncancel' ]
.forEach(event =>
gDisplay.addEventListener(event,
event => gEventsReceived.push(event),
@@ -322,9 +325,13 @@ getComputedStyle(divs[0]).marginLeft;
advance_clock(0);
advance_clock(10000);
-checkEventOrder([ divs[0], 'transitionend' ],
+checkEventOrder([ divs[0], 'transitionrun' ],
+ [ divs[0], 'transitionstart' ],
+ [ divs[1], 'transitionrun' ],
+ [ divs[1], 'transitionstart' ],
+ [ divs[0], 'transitionend' ],
[ divs[1], 'transitionend' ],
- 'Simultaneous transitionend on siblings');
+ 'Simultaneous transitionrun/start/end on siblings');
divs.forEach(div => div.remove());
divs = [];
@@ -360,10 +367,16 @@ getComputedStyle(divs[0]).marginLeft;
advance_clock(0);
advance_clock(10000);
-checkEventOrder([ divs[0], 'transitionend' ],
+checkEventOrder([ divs[0], 'transitionrun' ],
+ [ divs[0], 'transitionstart' ],
+ [ divs[2], 'transitionrun' ],
+ [ divs[2], 'transitionstart' ],
+ [ divs[1], 'transitionrun' ],
+ [ divs[1], 'transitionstart' ],
+ [ divs[0], 'transitionend' ],
[ divs[2], 'transitionend' ],
[ divs[1], 'transitionend' ],
- 'Simultaneous transitionend on children');
+ 'Simultaneous transitionrun/start/end on children');
divs.forEach(div => div.remove());
divs = [];
@@ -408,11 +421,19 @@ getComputedStyle(divs[0]).marginLeft;
advance_clock(0);
advance_clock(10000);
-checkEventOrder([ divs[0], 'transitionend' ],
+checkEventOrder([ divs[0], 'transitionrun' ],
+ [ divs[0], 'transitionstart' ],
+ [ divs[0], '::before', 'transitionrun' ],
+ [ divs[0], '::before', 'transitionstart' ],
+ [ divs[0], '::after', 'transitionrun' ],
+ [ divs[0], '::after', 'transitionstart' ],
+ [ divs[1], 'transitionrun' ],
+ [ divs[1], 'transitionstart' ],
+ [ divs[0], 'transitionend' ],
[ divs[0], '::before', 'transitionend' ],
[ divs[0], '::after', 'transitionend' ],
[ divs[1], 'transitionend' ],
- 'Simultaneous transitionend on pseudo-elements');
+ 'Simultaneous transitionrun/start/end on pseudo-elements');
divs.forEach(div => div.remove());
divs = [];
@@ -441,9 +462,13 @@ getComputedStyle(divs[0]).marginLeft;
advance_clock(0);
advance_clock(10000);
-checkEventOrder([ divs[1], 'transitionend' ],
+checkEventOrder([ divs[0], 'transitionrun' ],
+ [ divs[0], 'transitionstart' ],
+ [ divs[1], 'transitionrun' ],
+ [ divs[1], 'transitionstart' ],
+ [ divs[1], 'transitionend' ],
[ divs[0], 'transitionend' ],
- 'Sorting of transitionend events by time');
+ 'Sorting of transitionrun/start/end events by time');
divs.forEach(div => div.remove());
divs = [];
@@ -468,9 +493,13 @@ getComputedStyle(divs[0]).marginLeft;
advance_clock(0);
advance_clock(10 * 1000);
-checkEventOrder([ divs[1], 'transitionend' ],
+checkEventOrder([ divs[0], 'transitionrun' ],
+ [ divs[1], 'transitionrun' ],
+ [ divs[1], 'transitionstart' ],
+ [ divs[0], 'transitionstart' ],
+ [ divs[1], 'transitionend' ],
[ divs[0], 'transitionend' ],
- 'Sorting of transitionend events by time' +
+ 'Sorting of transitionrun/start/end events by time' +
'(including delay)');
divs.forEach(div => div.remove());
@@ -492,9 +521,14 @@ getComputedStyle(div).marginLeft;
advance_clock(0);
advance_clock(10000);
-checkEventOrder([ 'margin-left', 'transitionend' ],
+checkEventOrder([ 'margin-left', 'transitionrun' ],
+ [ 'margin-left', 'transitionstart' ],
+ [ 'opacity', 'transitionrun' ],
+ [ 'opacity', 'transitionstart' ],
+ [ 'margin-left', 'transitionend' ],
[ 'opacity', 'transitionend' ],
- 'Sorting of transitionend events by transition-property')
+ 'Sorting of transitionrun/start/end events by ' +
+ 'transition-property')
div.remove();
div = undefined;
@@ -519,7 +553,11 @@ getComputedStyle(divs[0]).marginLeft;
advance_clock(0);
advance_clock(10000);
-checkEventOrder([ divs[0], 'transitionend' ],
+checkEventOrder([ divs[0], 'transitionrun' ],
+ [ divs[0], 'transitionstart' ],
+ [ divs[1], 'transitionrun' ],
+ [ divs[1], 'transitionstart' ],
+ [ divs[0], 'transitionend' ],
[ divs[1], 'transitionend' ],
'Transition events are sorted by document position first, ' +
'before transition-property');
@@ -543,7 +581,11 @@ getComputedStyle(div).marginLeft;
advance_clock(0);
advance_clock(10000);
-checkEventOrder([ 'opacity', 'transitionend' ],
+checkEventOrder([ 'margin-left', 'transitionrun' ],
+ [ 'margin-left', 'transitionstart' ],
+ [ 'opacity', 'transitionrun' ],
+ [ 'opacity', 'transitionstart' ],
+ [ 'opacity', 'transitionend' ],
[ 'margin-left', 'transitionend' ],
'Transition events are sorted by time first, before ' +
'transition-property');
@@ -571,9 +613,50 @@ getComputedStyle(divs[0]).marginLeft;
advance_clock(0);
advance_clock(15 * 1000);
-checkEventOrder([ divs[1], 'transitionend' ],
+checkEventOrder([ divs[0], 'transitionrun' ],
+ [ divs[1], 'transitionrun' ],
+ [ divs[1], 'transitionstart' ],
+ [ divs[0], 'transitionstart' ],
+ [ divs[1], 'transitionend' ],
[ divs[0], 'transitionend' ],
- 'Simultaneous transitionend on siblings');
+ 'Simultaneous transitionrun/start/end on siblings');
+
+divs.forEach(div => div.remove());
+divs = [];
+
+// 4j. Test sorting transitions with cancel
+// The order of transitioncancel is based on StyleManager.
+// So this test looks like wrong result at a glance. However
+// the gecko will cancel div1's transition before div2 in this case.
+
+divs = [ document.createElement('div'),
+ document.createElement('div') ];
+divs.forEach((div, i) => {
+ gDisplay.appendChild(div);
+ div.style.marginLeft = '0px';
+ div.setAttribute('id', 'div' + i);
+});
+
+divs[0].style.transition = 'margin-left 10s 5s';
+divs[1].style.transition = 'margin-left 10s';
+
+getComputedStyle(divs[0]).marginLeft;
+divs.forEach(div => div.style.marginLeft = '100px');
+getComputedStyle(divs[0]).marginLeft;
+
+advance_clock(0);
+advance_clock(5 * 1000);
+divs.forEach(div => div.style.display = 'none' );
+getComputedStyle(divs[0]).display;
+advance_clock(10 * 1000);
+
+checkEventOrder([ divs[0], 'transitionrun' ],
+ [ divs[1], 'transitionrun' ],
+ [ divs[1], 'transitionstart' ],
+ [ divs[0], 'transitionstart' ],
+ [ divs[1], 'transitioncancel' ],
+ [ divs[0], 'transitioncancel' ],
+ 'Simultaneous transitionrun/start/cancel on siblings');
divs.forEach(div => div.remove());
divs = [];
diff --git a/layout/style/test/test_animations_omta.html b/layout/style/test/test_animations_omta.html
index 4b276c896..0b2a61ecc 100644
--- a/layout/style/test/test_animations_omta.html
+++ b/layout/style/test/test_animations_omta.html
@@ -1408,9 +1408,6 @@ addAsyncAnimTest(function *() {
"large negative delay test at 0ms");
check_events([{ type: 'animationstart', target: gDiv,
animationName: 'anim2', elapsedTime: 3.6,
- pseudoElement: "" },
- { type: 'animationiteration', target: gDiv,
- animationName: 'anim2', elapsedTime: 3.6,
pseudoElement: "" }],
"right after start in large negative delay test");
advance_clock(380);
diff --git a/layout/style/test/test_dynamic_change_causing_reflow.html b/layout/style/test/test_dynamic_change_causing_reflow.html
index a941191f6..a5bb3045c 100644
--- a/layout/style/test/test_dynamic_change_causing_reflow.html
+++ b/layout/style/test/test_dynamic_change_causing_reflow.html
@@ -95,6 +95,90 @@ const gTestcases = [
expectReflow: true,
},
+ // * Changing 'overflow' on <body> should cause reflow,
+ // but not frame reconstruction
+ {
+ elem: document.body,
+ /* beforeStyle: implicitly 'overflow:visible' */
+ afterStyle: "overflow: hidden",
+ expectConstruction: false,
+ expectReflow: true,
+ },
+ {
+ elem: document.body,
+ /* beforeStyle: implicitly 'overflow:visible' */
+ afterStyle: "overflow: scroll",
+ expectConstruction: false,
+ expectReflow: true,
+ },
+ {
+ elem: document.body,
+ beforeStyle: "overflow: hidden",
+ afterStyle: "overflow: auto",
+ expectConstruction: false,
+ expectReflow: true,
+ },
+ {
+ elem: document.body,
+ beforeStyle: "overflow: hidden",
+ afterStyle: "overflow: scroll",
+ expectConstruction: false,
+ expectReflow: true,
+ },
+ {
+ elem: document.body,
+ beforeStyle: "overflow: hidden",
+ afterStyle: "overflow: visible",
+ expectConstruction: false,
+ expectReflow: true,
+ },
+ {
+ elem: document.body,
+ beforeStyle: "overflow: auto",
+ afterStyle: "overflow: hidden",
+ expectConstruction: false,
+ expectReflow: true,
+ },
+ {
+ elem: document.body,
+ beforeStyle: "overflow: visible",
+ afterStyle: "overflow: hidden",
+ expectConstruction: false,
+ expectReflow: true,
+ },
+
+ // * Changing 'overflow' on <html> should cause reflow,
+ // but not frame reconstruction
+ {
+ elem: document.documentElement,
+ /* beforeStyle: implicitly 'overflow:visible' */
+ afterStyle: "overflow: auto",
+ expectConstruction: false,
+ expectReflow: true,
+ },
+ {
+ elem: document.documentElement,
+ beforeStyle: "overflow: visible",
+ afterStyle: "overflow: auto",
+ expectConstruction: false,
+ expectReflow: true,
+ },
+
+ // * Setting 'overflow' on arbitrary node should cause reflow as well as
+ // frame reconstruction
+ {
+ /* beforeStyle: implicitly 'overflow:visible' */
+ afterStyle: "overflow: auto",
+ expectConstruction: true,
+ expectReflow: true,
+ },
+ {
+ beforeStyle: "overflow: auto",
+ afterStyle: "overflow: visible",
+ expectConstruction: true,
+ expectReflow: true,
+ },
+
// * Changing 'display' should cause frame construction and reflow.
{
beforeStyle: "display: inline",
@@ -135,23 +219,34 @@ function runOneTest(aTestcase)
return;
}
+ // Figure out which element we'll be tweaking (defaulting to gElem)
+ let elem = aTestcase.elem ?
+ aTestcase.elem : gElem;
+
+ // Verify that 'style' attribute is unset (avoid causing ourselves trouble):
+ if (elem.hasAttribute("style")) {
+ ok(false,
+ "test element has 'style' attribute already set! We're going to stomp " +
+ "on whatever's there when we clean up...");
+ }
+
// Set the "before" style, and compose the first part of the message
// to be used in our "is"/"isnot" invocations:
let msgPrefix = "Changing style ";
if (aTestcase.beforeStyle) {
- gElem.setAttribute("style", aTestcase.beforeStyle);
+ elem.setAttribute("style", aTestcase.beforeStyle);
msgPrefix += "from '" + aTestcase.beforeStyle + "' ";
}
- msgPrefix += "to '" + aTestcase.afterStyle + "' ";
+ msgPrefix += "on " + elem.nodeName + " ";
// Establish initial counts:
- let unusedVal = gElem.offsetHeight; // flush layout
+ let unusedVal = elem.offsetHeight; // flush layout
let origFramesConstructed = gUtils.framesConstructed;
let origFramesReflowed = gUtils.framesReflowed;
// Make the change and flush:
- gElem.setAttribute("style", aTestcase.afterStyle);
- unusedVal = gElem.offsetHeight; // flush layout
+ elem.setAttribute("style", aTestcase.afterStyle);
+ unusedVal = elem.offsetHeight; // flush layout
// Make our is/isnot assertions about whether things should have changed:
checkFinalCount(gUtils.framesConstructed, origFramesConstructed,
@@ -162,7 +257,7 @@ function runOneTest(aTestcase)
"reflow");
// Clean up!
- gElem.removeAttribute("style");
+ elem.removeAttribute("style");
}
gTestcases.forEach(runOneTest);
diff --git a/layout/style/test/test_viewport_scrollbar_causing_reflow.html b/layout/style/test/test_viewport_scrollbar_causing_reflow.html
new file mode 100644
index 000000000..dfd7ec450
--- /dev/null
+++ b/layout/style/test/test_viewport_scrollbar_causing_reflow.html
@@ -0,0 +1,125 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1367568
+-->
+<head>
+ <meta charset="utf-8">
+ <title>Test for Bug 1367568</title>
+ <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=">Mozilla Bug 1367568</a>
+<div id="content">
+ <!-- Some fixed-width divs that we shouldn't have to reflow when the viewport
+ changes: -->
+ <div style="width: 100px">
+ fixed-width
+ <div>(child)</div>
+ </div>
+ <div style="position: absolute; width: 150px">
+ abs-fixed-width
+ <div>(child)</div>
+ </div>
+</div>
+<pre id="test">
+<script type="application/javascript">
+"use strict";
+
+/** Test for Bug 1367568 **/
+
+/**
+ * This test verifies that "overflow" changes on the <body> don't cause
+ * an unnecessarily large amount of reflow.
+ */
+
+// Vars used in setStyleAndMeasure that we really only have to look up once:
+const gUtils = SpecialPowers.getDOMWindowUtils(window);
+
+function setStyleAndMeasure(initialStyle, finalStyle) {
+ is(document.body.style.length, 0,
+ "Bug in test - body should start with empty style");
+ let unusedVal = document.body.offsetHeight; // flush layout
+ let constructCount = gUtils.framesConstructed;
+
+ document.body.style = initialStyle;
+ unusedVal = document.body.offsetHeight; // flush layout
+ let reflowCountBeforeTweak = gUtils.framesReflowed;
+
+ document.body.style = finalStyle;
+ unusedVal = document.body.offsetHeight; // flush layout
+ let reflowCountAfterTweak = gUtils.framesReflowed;
+
+ // Clean up:
+ document.body.style = "";
+
+ is(gUtils.framesConstructed, constructCount,
+ "Style tweak shouldn't have triggered frame construction");
+
+ // ...and return the delta:
+ return reflowCountAfterTweak - reflowCountBeforeTweak;
+}
+
+function main() {
+ // First, we sanity-check that our measurement make sense -- if we leave
+ // styles unchanged, we should measure no frames being reflowed:
+ let count = setStyleAndMeasure("width: 50px; height: 80px",
+ "width: 50px; height: 80px");
+ is(count, 0,
+ "Shouldn't reflow anything when we leave 'width' & 'height' unchanged");
+
+ // Now: see how many frames are reflowed when the "width" & "height" change.
+ // We'll use this as the reference when measuring reflow counts for various
+ // changes to "overflow" below.
+ count = setStyleAndMeasure("width: 50px; height: 80px",
+ "width: 90px; height: 60px");
+ ok(count > 0,
+ "Should reflow some frames when 'width' & 'height' change");
+
+ // Expected maximum number of frames reflowed for "overflow" changes
+ // (+2 is to allow for reflowing scrollbars themselves):
+ const expectedMax = count + 2;
+
+ // Shared ending for messages in all ok() checks below:
+ const messageSuffix =
+ " shouldn't be greater than count for tweaking width/height on body (" +
+ expectedMax + ")";
+
+ // OK, here is where the relevant tests actually begin!!
+ // See how many frames we reflow for various tweaks to "overflow" on
+ // the body -- we expect the count to be no larger than |expectedMax|.
+ count = setStyleAndMeasure("", "overflow: scroll");
+ ok(count <= expectedMax,
+ "Reflow count when setting 'overflow: scroll' on body (" + count + ")" +
+ messageSuffix);
+
+ count = setStyleAndMeasure("", "overflow: hidden");
+ ok(count <= expectedMax,
+ "Reflow count when setting 'overflow: hidden' on body (" + count + ")" +
+ messageSuffix);
+
+ // Test removal of "overflow: scroll":
+ count = setStyleAndMeasure("overflow: scroll", "");
+ ok(count <= expectedMax,
+ "Reflow count when removing 'overflow: scroll' from body (" + count + ")" +
+ messageSuffix);
+
+ count = setStyleAndMeasure("overflow: hidden", "");
+ ok(count <= expectedMax,
+ "Reflow count when removing 'overflow: hidden' from body (" + count + ")" +
+ messageSuffix);
+
+ // Test change between two non-'visible' overflow values:
+ count = setStyleAndMeasure("overflow: scroll", "overflow: hidden");
+ ok(count <= expectedMax,
+ "Reflow count when changing 'overflow' on body (" + count + ")" +
+ messageSuffix);
+}
+
+main();
+
+</script>
+</pre>
+</body>
+</html>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-27 09:10:42 +0000