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Allow for build_display_list to be called immutably

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This commit is contained in:
Manish Goregaokar 2018-02-14 15:48:00 -08:00
parent 5cd15eeb54
commit 265a2ab2cc
2 changed files with 45 additions and 8 deletions
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2
components/layout/block.rs
View file

@ -1777,7 +1777,7 @@ impl BlockFlow {
}
}
pub fn has_scrolling_overflow(&mut self) -> bool {
pub fn has_scrolling_overflow(&self) -> bool {
self.flags.contains(BlockFlowFlags::HAS_SCROLLING_OVERFLOW)
}

51
components/layout/display_list/builder.rs
View file

@ -661,6 +661,18 @@ pub trait FragmentDisplayListBuilding {
clip: &Rect<Au>,
);
/// build_display_list, but don't update the restyle damage
///
/// Must be paired with a self.restyle_damage.remove(REPAINT) somewhere
fn build_display_list_no_damage(
&self,
state: &mut DisplayListBuildState,
stacking_relative_border_box: Rect<Au>,
border_painting_mode: BorderPaintingMode,
display_list_section: DisplayListSection,
clip: &Rect<Au>,
);
/// Builds the display items necessary to paint the selection and/or caret for this fragment,
/// if any.
fn build_display_items_for_selection_if_necessary(
@ -695,7 +707,7 @@ pub trait FragmentDisplayListBuilding {
/// A helper method that `build_display_list` calls to create per-fragment-type display items.
fn build_fragment_type_specific_display_items(
&mut self,
&self,
state: &mut DisplayListBuildState,
stacking_relative_border_box: &Rect<Au>,
clip: &Rect<Au>,
@ -1721,6 +1733,18 @@ impl FragmentDisplayListBuilding for Fragment {
clip: &Rect<Au>,
) {
self.restyle_damage.remove(ServoRestyleDamage::REPAINT);
self.build_display_list_no_damage(state, stacking_relative_border_box,
border_painting_mode, display_list_section, clip)
}
fn build_display_list_no_damage(
&self,
state: &mut DisplayListBuildState,
stacking_relative_border_box: Rect<Au>,
border_painting_mode: BorderPaintingMode,
display_list_section: DisplayListSection,
clip: &Rect<Au>,
) {
if self.style().get_inheritedbox().visibility != Visibility::Visible {
return;
}
@ -1839,7 +1863,7 @@ impl FragmentDisplayListBuilding for Fragment {
}
fn build_fragment_type_specific_display_items(
&mut self,
&self,
state: &mut DisplayListBuildState,
stacking_relative_border_box: &Rect<Au>,
clip: &Rect<Au>,
@ -1963,7 +1987,7 @@ impl FragmentDisplayListBuilding for Fragment {
state.add_display_item(item);
}
},
SpecificFragmentInfo::Image(ref mut image_fragment) => {
SpecificFragmentInfo::Image(ref image_fragment) => {
// Place the image into the display list.
if let Some(ref image) = image_fragment.image {
let base = state.create_base_display_item(
@ -2329,7 +2353,11 @@ pub trait BlockFlowDisplayListBuilding {
state: &mut DisplayListBuildState,
border_painting_mode: BorderPaintingMode,
);
fn build_display_list_for_block_no_damage(
&self,
state: &mut DisplayListBuildState,
border_painting_mode: BorderPaintingMode,
);
fn build_display_list_for_background_if_applicable_with_background(
&self,
state: &mut DisplayListBuildState,
@ -2873,8 +2901,8 @@ impl BlockFlowDisplayListBuilding for BlockFlow {
self.base.collect_stacking_contexts_for_children(state);
}
fn build_display_list_for_block(
&mut self,
fn build_display_list_for_block_no_damage(
&self,
state: &mut DisplayListBuildState,
border_painting_mode: BorderPaintingMode,
) {
@ -2884,7 +2912,7 @@ impl BlockFlowDisplayListBuilding for BlockFlow {
let stacking_relative_border_box =
self.base.stacking_relative_border_box_for_display_list(&self.fragment);
// Add the box that starts the block context.
self.fragment.build_display_list(
self.fragment.build_display_list_no_damage(
state,
stacking_relative_border_box,
border_painting_mode,
@ -2898,6 +2926,15 @@ impl BlockFlowDisplayListBuilding for BlockFlow {
state.processing_scrolling_overflow_element = false;
}
fn build_display_list_for_block(
&mut self,
state: &mut DisplayListBuildState,
border_painting_mode: BorderPaintingMode,
) {
self.fragment.restyle_damage.remove(ServoRestyleDamage::REPAINT);
self.build_display_list_for_block_no_damage(state, border_painting_mode);
}
fn build_display_list_for_background_if_applicable_with_background(
&self,
state: &mut DisplayListBuildState,