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authorjanekptacijarabaci <janekptacijarabaci@seznam.cz>2018-04-01 19:32:49 +0200
committerjanekptacijarabaci <janekptacijarabaci@seznam.cz>2018-04-01 19:32:49 +0200
commit1f4ce97ecd5fa47eead41e1408d2d26ce50749fa (patch)
treed47291e5471dc98ebf2e4f4d5281d9c3eda15518 /layout/generic/nsTextFrame.cpp
parentdc8aad9b9dc6983bb88aa586f34d9db007840eb8 (diff)
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moebius#90: CSS - implement text-justify property
Diffstat (limited to 'layout/generic/nsTextFrame.cpp')
-rw-r--r--layout/generic/nsTextFrame.cpp30
1 files changed, 24 insertions, 6 deletions
diff --git a/layout/generic/nsTextFrame.cpp b/layout/generic/nsTextFrame.cpp
index 00c0016fd..fa31443fd 100644
--- a/layout/generic/nsTextFrame.cpp
+++ b/layout/generic/nsTextFrame.cpp
@@ -2936,22 +2936,40 @@ nsTextFrame::GetTrimmedOffsets(const nsTextFragment* aFrag,
return offsets;
}
-static bool IsJustifiableCharacter(const nsTextFragment* aFrag, int32_t aPos,
+static bool IsJustifiableCharacter(const nsStyleText* aTextStyle,
+ const nsTextFragment* aFrag, int32_t aPos,
bool aLangIsCJ)
{
NS_ASSERTION(aPos >= 0, "negative position?!");
+
+ StyleTextJustify justifyStyle = aTextStyle->mTextJustify;
+ if (justifyStyle == StyleTextJustify::None) {
+ return false;
+ }
+
char16_t ch = aFrag->CharAt(aPos);
- if (ch == '\n' || ch == '\t' || ch == '\r')
+ if (ch == '\n' || ch == '\t' || ch == '\r') {
return true;
+ }
if (ch == ' ' || ch == CH_NBSP) {
// Don't justify spaces that are combined with diacriticals
- if (!aFrag->Is2b())
+ if (!aFrag->Is2b()) {
return true;
+ }
return !nsTextFrameUtils::IsSpaceCombiningSequenceTail(
- aFrag->Get2b() + aPos + 1, aFrag->GetLength() - (aPos + 1));
+ aFrag->Get2b() + aPos + 1, aFrag->GetLength() - (aPos + 1));
}
- if (ch < 0x2150u)
+
+ if (justifyStyle == StyleTextJustify::InterCharacter) {
+ return true;
+ } else if (justifyStyle == StyleTextJustify::InterWord) {
+ return false;
+ }
+
+ // text-justify: auto
+ if (ch < 0x2150u) {
return false;
+ }
if (aLangIsCJ) {
if ((0x2150u <= ch && ch <= 0x22ffu) || // Number Forms, Arrows, Mathematical Operators
(0x2460u <= ch && ch <= 0x24ffu) || // Enclosed Alphanumerics
@@ -3279,7 +3297,7 @@ PropertyProvider::ComputeJustification(
gfxSkipCharsIterator iter = run.GetPos();
for (uint32_t i = 0; i < length; ++i) {
uint32_t offset = originalOffset + i;
- if (!IsJustifiableCharacter(mFrag, offset, isCJ)) {
+ if (!IsJustifiableCharacter(mTextStyle, mFrag, offset, isCJ)) {
continue;
}