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-rw-r--r--layout/style/test/chrome/bug418986-2.js2
-rw-r--r--layout/style/test/mochitest.ini1
-rw-r--r--layout/style/test/property_database.js14
-rw-r--r--layout/style/test/test_dynamic_change_causing_reflow.html107
-rw-r--r--layout/style/test/test_media_queries.html7
-rw-r--r--layout/style/test/test_viewport_scrollbar_causing_reflow.html125
6 files changed, 242 insertions, 14 deletions
diff --git a/layout/style/test/chrome/bug418986-2.js b/layout/style/test/chrome/bug418986-2.js
index 4336f4abd..b083f48ee 100644
--- a/layout/style/test/chrome/bug418986-2.js
+++ b/layout/style/test/chrome/bug418986-2.js
@@ -53,8 +53,6 @@ var suppressed_toggles = [
// Possible values for '-moz-os-version'
var windows_versions = [
- "windows-xp",
- "windows-vista",
"windows-win7",
"windows-win8",
"windows-win10",
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/property_database.js b/layout/style/test/property_database.js
index 9c69e7d10..62d413d98 100644
--- a/layout/style/test/property_database.js
+++ b/layout/style/test/property_database.js
@@ -132,6 +132,9 @@ var validGradientAndElementValues = [
"linear-gradient(to right bottom, red, 50%, green 50%, 50%, blue)",
"linear-gradient(to right bottom, red, 0%, green 50%, 100%, blue)",
+ /* Unitless 0 is valid as an <angle> */
+ "linear-gradient(0, red, blue)",
+
"-moz-linear-gradient(red, blue)",
"-moz-linear-gradient(red, yellow, blue)",
"-moz-linear-gradient(red 1px, yellow 20%, blue 24em, green)",
@@ -388,10 +391,8 @@ var invalidGradientAndElementValues = [
"-moz-linear-gradient(10 10px -45deg, red, blue) repeat",
"-moz-linear-gradient(10px 10 -45deg, red, blue) repeat",
"linear-gradient(red -99, yellow, green, blue 120%)",
- /* Unitless 0 is invalid as an <angle> */
- "-moz-linear-gradient(top left 0, red, blue)",
- "-moz-linear-gradient(5px 5px 0, red, blue)",
- "linear-gradient(0, red, blue)",
+ /* Unitless nonzero numbers are valid as an <angle> */
+ "linear-gradient(30, red, blue)",
/* Invalid color, calc() or -moz-image-rect() function */
"linear-gradient(red, rgb(0, rubbish, 0) 50%, red)",
"linear-gradient(red, red calc(50% + rubbish), red)",
@@ -6270,6 +6271,7 @@ if (IsCSSPropertyPrefEnabled("layout.css.grid.enabled")) {
"repeat(auto-fill,minmax(1%,auto))",
"repeat(auto-fill,minmax(1em,min-content)) minmax(min-content,0)",
"repeat(auto-fill,minmax(max-content,1mm))",
+ "repeat(2, fit-content(1px))",
"fit-content(1px) 1fr",
"[a] fit-content(calc(1px - 99%)) [b]",
"[a] fit-content(10%) [b c] fit-content(1em)",
@@ -6314,6 +6316,8 @@ if (IsCSSPropertyPrefEnabled("layout.css.grid.enabled")) {
"repeat(1, repeat(1, 20px))",
"repeat(auto-fill, auto)",
"repeat(auto-fit,auto)",
+ "repeat(auto-fill, fit-content(1px))",
+ "repeat(auto-fit, fit-content(1px))",
"repeat(auto-fit,[])",
"repeat(auto-fill, 0) repeat(auto-fit, 0) ",
"repeat(auto-fit, 0) repeat(auto-fill, 0) ",
@@ -6335,6 +6339,8 @@ if (IsCSSPropertyPrefEnabled("layout.css.grid.enabled")) {
"fit-content(-1px)",
"fit-content(auto)",
"fit-content(min-content)",
+ "fit-content(1px) repeat(auto-fit, 1px)",
+ "fit-content(1px) repeat(auto-fill, 1px)",
],
unbalanced_values: [
"(foo] 40px",
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_media_queries.html b/layout/style/test/test_media_queries.html
index 1edac15ae..d503fad0b 100644
--- a/layout/style/test/test_media_queries.html
+++ b/layout/style/test/test_media_queries.html
@@ -628,6 +628,7 @@ function run() {
expression_should_be_parseable("-moz-windows-default-theme");
expression_should_be_parseable("-moz-mac-graphite-theme");
expression_should_be_parseable("-moz-mac-yosemite-theme");
+ expression_should_be_parseable("-moz-windows-accent-color-applies");
expression_should_be_parseable("-moz-windows-compositor");
expression_should_be_parseable("-moz-windows-classic");
expression_should_be_parseable("-moz-windows-glass");
@@ -643,6 +644,7 @@ function run() {
expression_should_be_parseable("-moz-windows-default-theme: 0");
expression_should_be_parseable("-moz-mac-graphite-theme: 0");
expression_should_be_parseable("-moz-mac-yosemite-theme: 0");
+ expression_should_be_parseable("-moz-windows-accent-color-applies: 0");
expression_should_be_parseable("-moz-windows-compositor: 0");
expression_should_be_parseable("-moz-windows-classic: 0");
expression_should_be_parseable("-moz-windows-glass: 0");
@@ -658,6 +660,7 @@ function run() {
expression_should_be_parseable("-moz-windows-default-theme: 1");
expression_should_be_parseable("-moz-mac-graphite-theme: 1");
expression_should_be_parseable("-moz-mac-yosemite-theme: 1");
+ expression_should_be_parseable("-moz-windows-accent-color-applies: 1");
expression_should_be_parseable("-moz-windows-compositor: 1");
expression_should_be_parseable("-moz-windows-classic: 1");
expression_should_be_parseable("-moz-windows-glass: 1");
@@ -673,6 +676,7 @@ function run() {
expression_should_not_be_parseable("-moz-windows-default-theme: -1");
expression_should_not_be_parseable("-moz-mac-graphite-theme: -1");
expression_should_not_be_parseable("-moz-mac-yosemite-theme: -1");
+ expression_should_not_be_parseable("-moz-windows-accent-color-applies: -1");
expression_should_not_be_parseable("-moz-windows-compositor: -1");
expression_should_not_be_parseable("-moz-windows-classic: -1");
expression_should_not_be_parseable("-moz-windows-glass: -1");
@@ -688,6 +692,7 @@ function run() {
expression_should_not_be_parseable("-moz-windows-default-theme: true");
expression_should_not_be_parseable("-moz-mac-graphite-theme: true");
expression_should_not_be_parseable("-moz-mac-yosemite-theme: true");
+ expression_should_not_be_parseable("-moz-windows-accent-color-applies: true");
expression_should_not_be_parseable("-moz-windows-compositor: true");
expression_should_not_be_parseable("-moz-windows-classic: true");
expression_should_not_be_parseable("-moz-windows-glass: true");
@@ -708,8 +713,6 @@ function run() {
expression_should_not_be_parseable("-moz-windows-theme: ");
// os version media queries (currently windows only)
- expression_should_be_parseable("-moz-os-version: windows-xp");
- expression_should_be_parseable("-moz-os-version: windows-vista");
expression_should_be_parseable("-moz-os-version: windows-win7");
expression_should_be_parseable("-moz-os-version: windows-win8");
expression_should_be_parseable("-moz-os-version: windows-win10");
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 2024-11-08 19:04:17 +0000