diff options
Diffstat (limited to 'components/layout/text.rs')
| -rw-r--r-- | components/layout/text.rs | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/components/layout/text.rs b/components/layout/text.rs index 0299199af39..5c9b93edee1 100644 --- a/components/layout/text.rs +++ b/components/layout/text.rs @@ -234,17 +234,22 @@ impl TextRunScanner { let flush_run = run_info.font_index != font_index || run_info.bidi_level != bidi_level || !compatible_script; - let flush_mapping = flush_run || mapping.selected != selected; - - if flush_mapping { - mapping.flush(&mut mappings, - &mut run_info, - &**text, - compression, - text_transform, - &mut last_whitespace, - &mut start_position, - end_position); + let new_mapping_needed = flush_run || mapping.selected != selected; + + if new_mapping_needed { + // We ignore empty mappings at the very start of a fragment. + // The run info values are uninitialized at this point so + // flushing an empty mapping is pointless. + if end_position > 0 { + mapping.flush(&mut mappings, + &mut run_info, + &**text, + compression, + text_transform, + &mut last_whitespace, + &mut start_position, + end_position); + } if run_info.text.len() > 0 { if flush_run { run_info.flush(&mut run_info_list, &mut insertion_point); |