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Draw insertion point even for empty input fields

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This allows text layout to generate an empty text fragment if the fragment
contains the insertion point for a text input box.
This commit is contained in:
Matt Brubeck 2016-04-01 20:18:28 -07:00
parent 831243af7c
commit 32aad0838e
4 changed files with 26 additions and 11 deletions
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19
components/layout/display_list_builder.rs
View file

@ -1014,13 +1014,9 @@ impl FragmentDisplayListBuilding for Fragment {
// display list items.
let mut clip = (*clip).clone();
self.adjust_clip_for_style(&mut clip, &stacking_relative_border_box);
if !clip.might_intersect_rect(&stacking_relative_border_box) {
return;
}
let empty_rect = !clip.might_intersect_rect(&stacking_relative_border_box);
debug!("Fragment::build_display_list: intersected. Adding display item...");
if self.is_primary_fragment() {
if self.is_primary_fragment() && !empty_rect {
// Add shadows, background, borders, and outlines, if applicable.
if let Some(ref inline_context) = self.inline_context {
for node in inline_context.nodes.iter().rev() {
@ -1080,14 +1076,23 @@ impl FragmentDisplayListBuilding for Fragment {
&stacking_relative_border_box,
&clip);
}
}
// Paint the selection point if necessary.
if self.is_primary_fragment() {
// Paint the selection point if necessary. Even an empty text fragment may have an
// insertion point, so we do this even if `empty_rect` is true.
self.build_display_items_for_selection_if_necessary(state,
&stacking_relative_border_box,
display_list_section,
&clip);
}
if empty_rect {
return;
}
debug!("Fragment::build_display_list: intersected. Adding display item...");
// Create special per-fragment-type display items.
self.build_fragment_type_specific_display_items(state,
&stacking_relative_border_box,