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Auto merge of #11798 - notriddle:input_caret, r=nox

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Account for the font of empty input fields

The font of empty fragments is not accounted for in layout. This behavior is incorrect when part of an input field.

- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #11653
- [X] There are tests for these changes

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This commit is contained in:
bors-servo 2016-06-20 05:58:23 -05:00 • committed by GitHub
commit 881c02ec89
4 changed files with 38 additions and 3 deletions
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6
components/layout/fragment.rs
View file

@ -1972,16 +1972,16 @@ impl Fragment {
ascent: computed_block_size + self.border_padding.block_start,
}
}
SpecificFragmentInfo::ScannedText(ref text_fragment) => {
SpecificFragmentInfo::ScannedText(ref info) => {
// Fragments with no glyphs don't contribute any inline metrics.
// TODO: Filter out these fragments during flow construction?
if text_fragment.content_size.inline == Au(0) {
if info.insertion_point.is_none() && info.content_size.inline == Au(0) {
return InlineMetrics::new(Au(0), Au(0), Au(0));
}
// See CSS 2.1 § 10.8.1.
let line_height = self.calculate_line_height(layout_context);
let font_derived_metrics =
InlineMetrics::from_font_metrics(&text_fragment.run.font_metrics, line_height);
InlineMetrics::from_font_metrics(&info.run.font_metrics, line_height);
InlineMetrics {
block_size_above_baseline: font_derived_metrics.block_size_above_baseline +
self.border_padding.block_start,

24
tests/wpt/mozilla/meta/MANIFEST.json
View file

@ -2724,6 +2724,18 @@
"url": "/_mozilla/css/input_button_size_a.html"
}
],
"css/input_empty_equiv.html": [
{
"path": "css/input_empty_equiv.html",
"references": [
[
"/_mozilla/css/input_empty_equiv_ref.html",
"=="
]
],
"url": "/_mozilla/css/input_empty_equiv.html"
}
],
"css/input_height_a.html": [
{
"path": "css/input_height_a.html",
@ -9782,6 +9794,18 @@
"url": "/_mozilla/css/input_button_size_a.html"
}
],
"css/input_empty_equiv.html": [
{
"path": "css/input_empty_equiv.html",
"references": [
[
"/_mozilla/css/input_empty_equiv_ref.html",
"=="
]
],
"url": "/_mozilla/css/input_empty_equiv.html"
}
],
"css/input_height_a.html": [
{
"path": "css/input_height_a.html",

6
tests/wpt/mozilla/tests/css/input_empty_equiv.html Normal file
View file

@ -0,0 +1,6 @@
<!doctype html>
<meta charset="utf-8">
<title>An input field is drawn the same with or without content</title>
<link rel="match" href="input_empty_equiv_ref.html">
<input></input>
<script>document.getElementsByTagName("input")[0].focus()</script>

5
tests/wpt/mozilla/tests/css/input_empty_equiv_ref.html Normal file
View file

@ -0,0 +1,5 @@
<!doctype html>
<meta charset="utf-8">
<title>An input field is drawn the same with or without content</title>
<input value=" "></input>
<script>document.getElementsByTagName("input")[0].focus()</script>