Add test for sideways writing-mode (#18127)
diff --git a/css/cssom-view/scrollIntoView-sideways-lr-writing-mode-and-rtl-direction.html b/css/cssom-view/scrollIntoView-sideways-lr-writing-mode-and-rtl-direction.html
new file mode 100644
index 0000000..8d43540
--- /dev/null
+++ b/css/cssom-view/scrollIntoView-sideways-lr-writing-mode-and-rtl-direction.html
@@ -0,0 +1,106 @@
+<!DOCTYPE html>
+<title>CSSOM View - scrollIntoView considers sideways-lr writing mode and rtl direction</title>
+<meta charset="utf-8">
+<link rel="author" title="Cathie Chen" href="mailto:cathiechen@igalia.com">
+<link rel="help" href="https://drafts.csswg.org/cssom-view/#dom-element-scrollintoview">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<style>
+.box {
+ float: left;
+ width: 200px;
+ height: 200px;
+}
+#scroller {
+ writing-mode: sideways-lr;
+ direction: rtl;
+ overflow: scroll;
+ width: 300px;
+ height: 300px;
+}
+#container{
+ width: 600px;
+ height: 600px;
+}
+#target {
+ background-color: #ff0;
+}
+</style>
+<body>
+<div id="scroller">
+ <div id="container">
+ <!-- ROW-1 -->
+ <div class="row">
+ <div class="box"></div>
+ <div class="box"></div>
+ <div class="box"></div>
+ </div>
+
+ <!-- ROW-2 -->
+ <div class="row">
+ <div class="box"></div>
+ <div class="box" id="target"></div>
+ <div class="box"></div>
+ </div>
+
+ <!-- ROW-3 -->
+ <div class="row">
+ <div class="box"></div>
+ <div class="box"></div>
+ <div class="box"></div>
+ </div>
+ </div>
+</div>
+
+<script>
+// In sideways-lr mode and rtl direction, X corresponds to the block axis and is oriented rightward.
+// Y corresponds to the inline axis and is oriented downward.
+// So the beginning edges are the top and left edges and the ending edges are the bottom and right edges.
+
+// This assumes that the horizontal scrollbar is on the bottom side and the vertical scrollbar is on the right side.
+
+var target = document.getElementById("target");
+var scroller = document.getElementById("scroller");
+var scrollbar_width = scroller.offsetWidth - scroller.clientWidth;
+
+var scroller_width = scroller.offsetWidth;
+var scroller_height = scroller.offsetHeight;
+var box_width = target.offsetWidth;
+var box_height = target.offsetHeight;
+
+var expectedX = {
+ blockStart: box_width,
+ blockCenter: (3*box_width - scroller_width)/2 + scrollbar_width/2,
+ blockEnd: 2*box_width - scroller_width + scrollbar_width,
+};
+
+var expectedY = {
+ inlineStart: box_height,
+ inlineCenter: (3*box_height - scroller_height)/2 + scrollbar_width/2,
+ inlineEnd: 2*box_height - scroller_height + scrollbar_width,
+};
+
+[
+ [{block: "start", inline: "start"}, expectedX.blockStart, expectedY.inlineStart],
+ [{block: "start", inline: "center"}, expectedX.blockStart, expectedY.inlineCenter],
+ [{block: "start", inline: "end"}, expectedX.blockStart, expectedY.inlineEnd],
+ [{block: "center", inline: "start"}, expectedX.blockCenter, expectedY.inlineStart],
+ [{block: "center", inline: "center"}, expectedX.blockCenter, expectedY.inlineCenter],
+ [{block: "center", inline: "end"}, expectedX.blockCenter, expectedY.inlineEnd],
+ [{block: "end", inline: "start"}, expectedX.blockEnd, expectedY.inlineStart],
+ [{block: "end", inline: "center"}, expectedX.blockEnd, expectedY.inlineCenter],
+ [{block: "end", inline: "end"}, expectedX.blockEnd, expectedY.inlineEnd],
+].forEach(([input, expectedX, expectedY]) => {
+ test(() => {
+ scroller.scrollTo(0, 0);
+ target.scrollIntoView(input);
+ assert_approx_equals(scroller.scrollLeft, expectedX, 0.5, "scrollX");
+ assert_approx_equals(scroller.scrollTop, expectedY, 0.5, "scrollY");
+ }, `scrollIntoView(${JSON.stringify(input)})`);
+})
+
+</script>
+
+</body>
+</html>
diff --git a/css/cssom-view/scrollIntoView-sideways-lr-writing-mode.html b/css/cssom-view/scrollIntoView-sideways-lr-writing-mode.html
new file mode 100644
index 0000000..0659dec
--- /dev/null
+++ b/css/cssom-view/scrollIntoView-sideways-lr-writing-mode.html
@@ -0,0 +1,108 @@
+<!DOCTYPE html>
+<title>CSSOM View - scrollIntoView considers sideways-rl writing mode</title>
+<meta charset="utf-8">
+<link rel="author" title="Cathie Chen" href="mailto:cathiechen@igalia.com">
+<link rel="help" href="https://drafts.csswg.org/cssom-view/#dom-element-scrollintoview">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<style>
+.box {
+ float: left;
+ width: 200px;
+ height: 200px;
+}
+#scroller {
+ writing-mode: sideways-lr;
+ overflow: scroll;
+ width: 300px;
+ height: 300px;
+}
+#container{
+ width: 600px;
+ height: 600px;
+}
+#target {
+ background-color: #ff0;
+}
+</style>
+<body>
+<div id="scroller">
+ <div id="container">
+ <!-- ROW-1 -->
+ <div class="row">
+ <div class="box"></div>
+ <div class="box"></div>
+ <div class="box"></div>
+ </div>
+
+ <!-- ROW-2 -->
+ <div class="row">
+ <div class="box"></div>
+ <div class="box" id="target"></div>
+ <div class="box"></div>
+ </div>
+
+ <!-- ROW-3 -->
+ <div class="row">
+ <div class="box"></div>
+ <div class="box"></div>
+ <div class="box"></div>
+ </div>
+ </div>
+</div>
+
+<script>
+// In sideways-lr mode, X corresponds to the block axis and is oriented rightward.
+// Y corresponds to the inline axis and is oriented upward.
+// So the beginning edges are the bottom and left edges and the ending edges are the top and right edges.
+
+// According to the spec, y be min(0, max(y, element padding edge height - element scrolling area height)).
+// So y is nonpositive and decreases upward.
+
+// This assumes that the horizontal scrollbar is on the bottom side and the vertical scrollbar is on the right side.
+
+var target = document.getElementById("target");
+var scroller = document.getElementById("scroller");
+var scrollbar_width = scroller.offsetWidth - scroller.clientWidth;
+
+var scroller_width = scroller.offsetWidth;
+var scroller_height = scroller.offsetHeight;
+var box_width = target.offsetWidth;
+var box_height = target.offsetHeight;
+
+var expectedX = {
+ blockStart: box_width,
+ blockCenter: (3*box_width - scroller_width)/2 + scrollbar_width/2,
+ blockEnd: 2*box_width - scroller_width + scrollbar_width,
+};
+
+var expectedY = {
+ inlineStart: -box_height,
+ inlineCenter: -((3*box_height - scroller_height)/2) - scrollbar_width/2,
+ inlineEnd: -(2*box_height - scroller_height) - scrollbar_width,
+};
+
+[
+ [{block: "start", inline: "start"}, expectedX.blockStart, expectedY.inlineStart],
+ [{block: "start", inline: "center"}, expectedX.blockStart, expectedY.inlineCenter],
+ [{block: "start", inline: "end"}, expectedX.blockStart, expectedY.inlineEnd],
+ [{block: "center", inline: "start"}, expectedX.blockCenter, expectedY.inlineStart],
+ [{block: "center", inline: "center"}, expectedX.blockCenter, expectedY.inlineCenter],
+ [{block: "center", inline: "end"}, expectedX.blockCenter, expectedY.inlineEnd],
+ [{block: "end", inline: "start"}, expectedX.blockEnd, expectedY.inlineStart],
+ [{block: "end", inline: "center"}, expectedX.blockEnd, expectedY.inlineCenter],
+ [{block: "end", inline: "end"}, expectedX.blockEnd, expectedY.inlineEnd],
+].forEach(([input, expectedX, expectedY]) => {
+ test(() => {
+ scroller.scrollTo(0, 0);
+ target.scrollIntoView(input);
+ assert_approx_equals(scroller.scrollLeft, expectedX, 0.5, "scrollX");
+ assert_approx_equals(scroller.scrollTop, expectedY, 0.5, "scrollY");
+ }, `scrollIntoView(${JSON.stringify(input)})`);
+})
+
+</script>
+
+</body>
+</html>
diff --git a/css/cssom-view/scrollIntoView-sideways-rl-writing-mode-and-rtl-direction.html b/css/cssom-view/scrollIntoView-sideways-rl-writing-mode-and-rtl-direction.html
new file mode 100644
index 0000000..82e43eb
--- /dev/null
+++ b/css/cssom-view/scrollIntoView-sideways-rl-writing-mode-and-rtl-direction.html
@@ -0,0 +1,111 @@
+<!DOCTYPE html>
+<title>CSSOM View - scrollIntoView considers sideways-rl writing mode and rtl direction</title>
+<meta charset="utf-8">
+<link rel="author" title="Cathie Chen" href="mailto:cathiechen@igalia.com">
+<link rel="help" href="https://drafts.csswg.org/cssom-view/#dom-element-scrollintoview">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<style>
+.box {
+ float: left;
+ width: 200px;
+ height: 200px;
+}
+#scroller {
+ writing-mode: sideways-rl;
+ direction: rtl;
+ overflow: scroll;
+ width: 300px;
+ height: 300px;
+}
+#container{
+ width: 600px;
+ height: 600px;
+}
+#target {
+ background-color: #ff0;
+}
+</style>
+<body>
+<div id="scroller">
+ <div id="container">
+ <!-- ROW-1 -->
+ <div class="row">
+ <div class="box"></div>
+ <div class="box"></div>
+ <div class="box"></div>
+ </div>
+
+ <!-- ROW-2 -->
+ <div class="row">
+ <div class="box"></div>
+ <div class="box" id="target"></div>
+ <div class="box"></div>
+ </div>
+
+ <!-- ROW-3 -->
+ <div class="row">
+ <div class="box"></div>
+ <div class="box"></div>
+ <div class="box"></div>
+ </div>
+ </div>
+</div>
+
+<script>
+// In sideways-rl mode and rtl direction, X corresponds to the block axis and is oriented leftward.
+// Y corresponds to the inline axis and is oriented upward.
+// So the beginning edges are the bottom and right edges and the ending edges are the top and left edges.
+
+// According to the spec, x be min(0, max(x, element padding edge width - element scrolling area width)).
+// So x is nonpositive and decreases leftward.
+// According to the spec, y be min(0, max(y, element padding edge height - element scrolling area height)).
+// So y is nonpositive and decreases upward.
+
+// This assumes that the horizontal scrollbar is on the bottom side and the vertical scrollbar is on the left side.
+
+var target = document.getElementById("target");
+var scroller = document.getElementById("scroller");
+var scrollbar_width = scroller.offsetWidth - scroller.clientWidth;
+
+var scroller_width = scroller.offsetWidth;
+var scroller_height = scroller.offsetHeight;
+var box_width = target.offsetWidth;
+var box_height = target.offsetHeight;
+
+var expectedX = {
+ blockStart: -box_width,
+ blockCenter: -((3*box_width - scroller_width)/2) - scrollbar_width/2,
+ blockEnd: -(2*box_width - scroller_width) - scrollbar_width,
+};
+
+var expectedY = {
+ inlineStart: -box_height,
+ inlineCenter: -((3*box_height - scroller_height)/2) - scrollbar_width/2,
+ inlineEnd: -(2*box_height - scroller_height) - scrollbar_width,
+};
+
+[
+ [{block: "start", inline: "start"}, expectedX.blockStart, expectedY.inlineStart],
+ [{block: "start", inline: "center"}, expectedX.blockStart, expectedY.inlineCenter],
+ [{block: "start", inline: "end"}, expectedX.blockStart, expectedY.inlineEnd],
+ [{block: "center", inline: "start"}, expectedX.blockCenter, expectedY.inlineStart],
+ [{block: "center", inline: "center"}, expectedX.blockCenter, expectedY.inlineCenter],
+ [{block: "center", inline: "end"}, expectedX.blockCenter, expectedY.inlineEnd],
+ [{block: "end", inline: "start"}, expectedX.blockEnd, expectedY.inlineStart],
+ [{block: "end", inline: "center"}, expectedX.blockEnd, expectedY.inlineCenter],
+ [{block: "end", inline: "end"}, expectedX.blockEnd, expectedY.inlineEnd],
+].forEach(([input, expectedX, expectedY]) => {
+ test(() => {
+ scroller.scrollTo(0, 0);
+ target.scrollIntoView(input);
+ assert_approx_equals(scroller.scrollLeft, expectedX, 0.5, "scrollX");
+ assert_approx_equals(scroller.scrollTop, expectedY, 0.5, "scrollY");
+ }, `scrollIntoView(${JSON.stringify(input)})`);
+})
+
+</script>
+
+</body>
+</html>
diff --git a/css/cssom-view/scrollIntoView-sideways-rl-writing-mode.html b/css/cssom-view/scrollIntoView-sideways-rl-writing-mode.html
new file mode 100644
index 0000000..9d7fda6
--- /dev/null
+++ b/css/cssom-view/scrollIntoView-sideways-rl-writing-mode.html
@@ -0,0 +1,108 @@
+<!DOCTYPE html>
+<title>CSSOM View - scrollIntoView considers sideways-rl writing mode</title>
+<meta charset="utf-8">
+<link rel="author" title="Cathie Chen" href="mailto:cathiechen@igalia.com">
+<link rel="help" href="https://drafts.csswg.org/cssom-view/#dom-element-scrollintoview">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<style>
+.box {
+ float: left;
+ width: 200px;
+ height: 200px;
+}
+#scroller {
+ writing-mode: sideways-rl;
+ overflow: scroll;
+ width: 300px;
+ height: 300px;
+}
+#container{
+ width: 600px;
+ height: 600px;
+}
+#target {
+ background-color: #ff0;
+}
+</style>
+<body>
+<div id="scroller">
+ <div id="container">
+ <!-- ROW-1 -->
+ <div class="row">
+ <div class="box"></div>
+ <div class="box"></div>
+ <div class="box"></div>
+ </div>
+
+ <!-- ROW-2 -->
+ <div class="row">
+ <div class="box"></div>
+ <div class="box" id="target"></div>
+ <div class="box"></div>
+ </div>
+
+ <!-- ROW-3 -->
+ <div class="row">
+ <div class="box"></div>
+ <div class="box"></div>
+ <div class="box"></div>
+ </div>
+ </div>
+</div>
+
+<script>
+// In sideways-rl mode, X corresponds to the block axis and is oriented leftward.
+// Y corresponds to the inline axis and is oriented downward.
+// So the beginning edges are the top and right edges and the ending edges are the bottom and left edges.
+
+// According to the spec, x be min(0, max(x, element padding edge width - element scrolling area width)).
+// So x is nonpositive and decreases leftward.
+
+// This assumes that the horizontal scrollbar is on the bottom side and the vertical scrollbar is on the left side.
+
+var target = document.getElementById("target");
+var scroller = document.getElementById("scroller");
+var scrollbar_width = scroller.offsetWidth - scroller.clientWidth;
+
+var scroller_width = scroller.offsetWidth;
+var scroller_height = scroller.offsetHeight;
+var box_width = target.offsetWidth;
+var box_height = target.offsetHeight;
+
+var expectedX = {
+ blockStart: -box_width,
+ blockCenter: -((3*box_width - scroller_width)/2) - scrollbar_width/2,
+ blockEnd: -(2*box_width - scroller_width) - scrollbar_width,
+};
+
+var expectedY = {
+ inlineStart: box_height,
+ inlineCenter: ((3*box_height - scroller_height)/2) + (scrollbar_width/2),
+ inlineEnd: ((2*box_height) - scroller_height) + scrollbar_width,
+};
+
+[
+ [{block: "start", inline: "start"}, expectedX.blockStart, expectedY.inlineStart],
+ [{block: "start", inline: "center"}, expectedX.blockStart, expectedY.inlineCenter],
+ [{block: "start", inline: "end"}, expectedX.blockStart, expectedY.inlineEnd],
+ [{block: "center", inline: "start"}, expectedX.blockCenter, expectedY.inlineStart],
+ [{block: "center", inline: "center"}, expectedX.blockCenter, expectedY.inlineCenter],
+ [{block: "center", inline: "end"}, expectedX.blockCenter, expectedY.inlineEnd],
+ [{block: "end", inline: "start"}, expectedX.blockEnd, expectedY.inlineStart],
+ [{block: "end", inline: "center"}, expectedX.blockEnd, expectedY.inlineCenter],
+ [{block: "end", inline: "end"}, expectedX.blockEnd, expectedY.inlineEnd],
+].forEach(([input, expectedX, expectedY]) => {
+ test(() => {
+ scroller.scrollTo(0, 0);
+ target.scrollIntoView(input);
+ assert_approx_equals(scroller.scrollLeft, expectedX, 0.5, "scrollX");
+ assert_approx_equals(scroller.scrollTop, expectedY, 0.5, "scrollY");
+ }, `scrollIntoView(${JSON.stringify(input)})`);
+})
+
+</script>
+
+</body>
+</html>
