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Remove FragmentDisplayListBuilding

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Anthony Ramine 2019-01-14 11:04:39 +01:00
parent f8c4a87a30
commit 6e0a7dc3b2
1 changed files with 46 additions and 225 deletions
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271
components/layout/display_list/builder.rs
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@ -581,230 +581,6 @@ impl<'a> DisplayListBuildState<'a> {
/// The logical width of an insertion point: at the moment, a one-pixel-wide line. /// The logical width of an insertion point: at the moment, a one-pixel-wide line.
const INSERTION_POINT_LOGICAL_WIDTH: Au = Au(1 * AU_PER_PX); const INSERTION_POINT_LOGICAL_WIDTH: Au = Au(1 * AU_PER_PX);
pub trait FragmentDisplayListBuilding {
fn collect_stacking_contexts_for_blocklike_fragment(
&mut self,
state: &mut StackingContextCollectionState,
) -> bool;
fn create_stacking_context_for_inline_block(
&mut self,
base: &BaseFlow,
state: &mut StackingContextCollectionState,
) -> bool;
/// Adds the display items necessary to paint the background of this fragment to the display
/// list if necessary.
fn build_display_list_for_background_if_applicable(
&self,
state: &mut DisplayListBuildState,
style: &ComputedValues,
display_list_section: DisplayListSection,
absolute_bounds: Rect<Au>,
);
/// Same as build_display_list_for_background_if_applicable, but lets you
/// override the actual background used
fn build_display_list_for_background_if_applicable_with_background(
&self,
state: &mut DisplayListBuildState,
style: &ComputedValues,
background: &style_structs::Background,
background_color: RGBA,
display_list_section: DisplayListSection,
absolute_bounds: Rect<Au>,
);
/// Adds the display items necessary to paint a webrender image of this fragment to the
/// appropriate section of the display list.
fn build_display_list_for_webrender_image(
&self,
state: &mut DisplayListBuildState,
style: &ComputedValues,
display_list_section: DisplayListSection,
absolute_bounds: Rect<Au>,
webrender_image: WebRenderImageInfo,
index: usize,
);
/// Calculates the webrender image for a paint worklet.
/// Returns None if the worklet is not registered.
/// If the worklet has missing image URLs, it passes them to the image cache for loading.
fn get_webrender_image_for_paint_worklet(
&self,
state: &mut DisplayListBuildState,
style: &ComputedValues,
paint_worklet: &PaintWorklet,
size: Size2D<Au>,
) -> Option<WebRenderImageInfo>;
/// Adds the display items necessary to paint the background linear gradient of this fragment
/// to the appropriate section of the display list.
fn build_display_list_for_background_gradient(
&self,
state: &mut DisplayListBuildState,
display_list_section: DisplayListSection,
absolute_bounds: Rect<Au>,
gradient: &Gradient,
style: &ComputedValues,
index: usize,
);
/// Adds the display items necessary to paint the borders of this fragment to a display list if
/// necessary.
fn build_display_list_for_borders_if_applicable(
&self,
state: &mut DisplayListBuildState,
style: &ComputedValues,
inline_node_info: Option<InlineNodeBorderInfo>,
border_painting_mode: BorderPaintingMode,
bounds: Rect<Au>,
display_list_section: DisplayListSection,
clip: Rect<Au>,
);
/// Add display item for image border.
///
/// Returns `Some` if the addition was successful.
fn build_display_list_for_border_image(
&self,
state: &mut DisplayListBuildState,
style: &ComputedValues,
base: BaseDisplayItem,
bounds: Rect<Au>,
image: &ComputedImage,
border_width: SideOffsets2D<Au>,
) -> Option<()>;
/// Adds the display items necessary to paint the outline of this fragment to the display list
/// if necessary.
fn build_display_list_for_outline_if_applicable(
&self,
state: &mut DisplayListBuildState,
style: &ComputedValues,
bounds: Rect<Au>,
clip: Rect<Au>,
);
/// Adds the display items necessary to paint the box shadow of this fragment to the display
/// list if necessary.
fn build_display_list_for_box_shadow_if_applicable(
&self,
state: &mut DisplayListBuildState,
style: &ComputedValues,
display_list_section: DisplayListSection,
absolute_bounds: Rect<Au>,
clip: Rect<Au>,
);
/// Adds display items necessary to draw debug boxes around a scanned text fragment.
fn build_debug_borders_around_text_fragments(
&self,
state: &mut DisplayListBuildState,
style: &ComputedValues,
stacking_relative_border_box: Rect<Au>,
stacking_relative_content_box: Rect<Au>,
text_fragment: &ScannedTextFragmentInfo,
clip: Rect<Au>,
);
/// Adds display items necessary to draw debug boxes around this fragment.
fn build_debug_borders_around_fragment(
&self,
state: &mut DisplayListBuildState,
stacking_relative_border_box: Rect<Au>,
clip: Rect<Au>,
);
/// Adds the display items for this fragment to the given display list.
///
/// Arguments:
///
/// * `state`: The display building state, including the display list currently
/// under construction and other metadata useful for constructing it.
/// * `dirty`: The dirty rectangle in the coordinate system of the owning flow.
/// * `clip`: The region to clip the display items to.
/// * `overflow_content_size`: The size of content associated with this fragment
/// that must have overflow handling applied to it. For a scrollable block
/// flow, it is expected that this is the size of the child boxes.
fn build_display_list(
&mut self,
state: &mut DisplayListBuildState,
stacking_relative_border_box: Rect<Au>,
border_painting_mode: BorderPaintingMode,
display_list_section: DisplayListSection,
clip: Rect<Au>,
overflow_content_size: Option<Size2D<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>,
overflow_content_size: Option<Size2D<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(
&self,
state: &mut DisplayListBuildState,
stacking_relative_border_box: Rect<Au>,
display_list_section: DisplayListSection,
clip: Rect<Au>,
);
/// Creates the text display item for one text fragment. This can be called multiple times for
/// one fragment if there are text shadows.
///
/// `text_shadow` will be `Some` if this is rendering a shadow.
fn build_display_list_for_text_fragment(
&self,
state: &mut DisplayListBuildState,
text_fragment: &ScannedTextFragmentInfo,
stacking_relative_content_box: Rect<Au>,
text_shadows: &[SimpleShadow],
clip: Rect<Au>,
);
/// Creates the display item for a text decoration: underline, overline, or line-through.
fn build_display_list_for_text_decoration(
&self,
state: &mut DisplayListBuildState,
color: &RGBA,
stacking_relative_box: &LogicalRect<Au>,
clip: Rect<Au>,
);
/// A helper method that `build_display_list` calls to create per-fragment-type display items.
fn build_fragment_type_specific_display_items(
&self,
state: &mut DisplayListBuildState,
stacking_relative_border_box: Rect<Au>,
clip: Rect<Au>,
);
/// Creates a stacking context for associated fragment.
fn create_stacking_context(
&self,
id: StackingContextId,
base_flow: &BaseFlow,
context_type: StackingContextType,
established_reference_frame: Option<ClipScrollNodeIndex>,
parent_clipping_and_scrolling: ClippingAndScrolling,
) -> StackingContext;
fn unique_id(&self) -> u64;
fn fragment_type(&self) -> FragmentType;
}
/// Get the border radius for the rectangle inside of a rounded border. This is useful /// Get the border radius for the rectangle inside of a rounded border. This is useful
/// for building the clip for the content inside the border. /// for building the clip for the content inside the border.
fn build_border_radius_for_inner_rect( fn build_border_radius_for_inner_rect(
@ -823,7 +599,7 @@ fn build_border_radius_for_inner_rect(
border::inner_radii(radii, border_widths) border::inner_radii(radii, border_widths)
} }
impl FragmentDisplayListBuilding for Fragment { impl Fragment {
fn collect_stacking_contexts_for_blocklike_fragment( fn collect_stacking_contexts_for_blocklike_fragment(
&mut self, &mut self,
state: &mut StackingContextCollectionState, state: &mut StackingContextCollectionState,
@ -881,6 +657,8 @@ impl FragmentDisplayListBuilding for Fragment {
true true
} }
/// Adds the display items necessary to paint the background of this fragment to the display
/// list if necessary.
fn build_display_list_for_background_if_applicable( fn build_display_list_for_background_if_applicable(
&self, &self,
state: &mut DisplayListBuildState, state: &mut DisplayListBuildState,
@ -902,6 +680,8 @@ impl FragmentDisplayListBuilding for Fragment {
) )
} }
/// Same as build_display_list_for_background_if_applicable, but lets you
/// override the actual background used
fn build_display_list_for_background_if_applicable_with_background( fn build_display_list_for_background_if_applicable_with_background(
&self, &self,
state: &mut DisplayListBuildState, state: &mut DisplayListBuildState,
@ -1028,6 +808,8 @@ impl FragmentDisplayListBuilding for Fragment {
} }
} }
/// Adds the display items necessary to paint a webrender image of this fragment to the
/// appropriate section of the display list.
fn build_display_list_for_webrender_image( fn build_display_list_for_webrender_image(
&self, &self,
state: &mut DisplayListBuildState, state: &mut DisplayListBuildState,
@ -1088,6 +870,9 @@ impl FragmentDisplayListBuilding for Fragment {
}); });
} }
/// Calculates the webrender image for a paint worklet.
/// Returns None if the worklet is not registered.
/// If the worklet has missing image URLs, it passes them to the image cache for loading.
fn get_webrender_image_for_paint_worklet( fn get_webrender_image_for_paint_worklet(
&self, &self,
state: &mut DisplayListBuildState, state: &mut DisplayListBuildState,
@ -1148,6 +933,8 @@ impl FragmentDisplayListBuilding for Fragment {
} }
} }
/// Adds the display items necessary to paint the background linear gradient of this fragment
/// to the appropriate section of the display list.
fn build_display_list_for_background_gradient( fn build_display_list_for_background_gradient(
&self, &self,
state: &mut DisplayListBuildState, state: &mut DisplayListBuildState,
@ -1220,6 +1007,8 @@ impl FragmentDisplayListBuilding for Fragment {
}); });
} }
/// Adds the display items necessary to paint the box shadow of this fragment to the display
/// list if necessary.
fn build_display_list_for_box_shadow_if_applicable( fn build_display_list_for_box_shadow_if_applicable(
&self, &self,
state: &mut DisplayListBuildState, state: &mut DisplayListBuildState,
@ -1269,6 +1058,8 @@ impl FragmentDisplayListBuilding for Fragment {
} }
} }
/// Adds the display items necessary to paint the borders of this fragment to a display list if
/// necessary.
fn build_display_list_for_borders_if_applicable( fn build_display_list_for_borders_if_applicable(
&self, &self,
state: &mut DisplayListBuildState, state: &mut DisplayListBuildState,
@ -1381,6 +1172,9 @@ impl FragmentDisplayListBuilding for Fragment {
))); )));
} }
/// Add display item for image border.
///
/// Returns `Some` if the addition was successful.
fn build_display_list_for_border_image( fn build_display_list_for_border_image(
&self, &self,
state: &mut DisplayListBuildState, state: &mut DisplayListBuildState,
@ -1483,6 +1277,8 @@ impl FragmentDisplayListBuilding for Fragment {
Some(()) Some(())
} }
/// Adds the display items necessary to paint the outline of this fragment to the display list
/// if necessary.
fn build_display_list_for_outline_if_applicable( fn build_display_list_for_outline_if_applicable(
&self, &self,
state: &mut DisplayListBuildState, state: &mut DisplayListBuildState,
@ -1532,6 +1328,7 @@ impl FragmentDisplayListBuilding for Fragment {
))); )));
} }
/// Adds display items necessary to draw debug boxes around a scanned text fragment.
fn build_debug_borders_around_text_fragments( fn build_debug_borders_around_text_fragments(
&self, &self,
state: &mut DisplayListBuildState, state: &mut DisplayListBuildState,
@ -1594,6 +1391,7 @@ impl FragmentDisplayListBuilding for Fragment {
))); )));
} }
/// Adds display items necessary to draw debug boxes around this fragment.
fn build_debug_borders_around_fragment( fn build_debug_borders_around_fragment(
&self, &self,
state: &mut DisplayListBuildState, state: &mut DisplayListBuildState,
@ -1621,6 +1419,8 @@ impl FragmentDisplayListBuilding for Fragment {
))); )));
} }
/// 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( fn build_display_items_for_selection_if_necessary(
&self, &self,
state: &mut DisplayListBuildState, state: &mut DisplayListBuildState,
@ -1702,6 +1502,17 @@ impl FragmentDisplayListBuilding for Fragment {
))); )));
} }
/// Adds the display items for this fragment to the given display list.
///
/// Arguments:
///
/// * `state`: The display building state, including the display list currently
/// under construction and other metadata useful for constructing it.
/// * `dirty`: The dirty rectangle in the coordinate system of the owning flow.
/// * `clip`: The region to clip the display items to.
/// * `overflow_content_size`: The size of content associated with this fragment
/// that must have overflow handling applied to it. For a scrollable block
/// flow, it is expected that this is the size of the child boxes.
fn build_display_list( fn build_display_list(
&mut self, &mut self,
state: &mut DisplayListBuildState, state: &mut DisplayListBuildState,
@ -1729,6 +1540,9 @@ impl FragmentDisplayListBuilding for Fragment {
state.current_clipping_and_scrolling = previous_clipping_and_scrolling; state.current_clipping_and_scrolling = previous_clipping_and_scrolling;
} }
/// 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( fn build_display_list_no_damage(
&self, &self,
state: &mut DisplayListBuildState, state: &mut DisplayListBuildState,
@ -1886,6 +1700,7 @@ impl FragmentDisplayListBuilding for Fragment {
} }
} }
/// A helper method that `build_display_list` calls to create per-fragment-type display items.
fn build_fragment_type_specific_display_items( fn build_fragment_type_specific_display_items(
&self, &self,
state: &mut DisplayListBuildState, state: &mut DisplayListBuildState,
@ -2087,6 +1902,7 @@ impl FragmentDisplayListBuilding for Fragment {
} }
} }
/// Creates a stacking context for associated fragment.
fn create_stacking_context( fn create_stacking_context(
&self, &self,
id: StackingContextId, id: StackingContextId,
@ -2139,6 +1955,10 @@ impl FragmentDisplayListBuilding for Fragment {
) )
} }
/// Creates the text display item for one text fragment. This can be called multiple times for
/// one fragment if there are text shadows.
///
/// `text_shadow` will be `Some` if this is rendering a shadow.
fn build_display_list_for_text_fragment( fn build_display_list_for_text_fragment(
&self, &self,
state: &mut DisplayListBuildState, state: &mut DisplayListBuildState,
@ -2290,6 +2110,7 @@ impl FragmentDisplayListBuilding for Fragment {
} }
} }
/// Creates the display item for a text decoration: underline, overline, or line-through.
fn build_display_list_for_text_decoration( fn build_display_list_for_text_decoration(
&self, &self,
state: &mut DisplayListBuildState, state: &mut DisplayListBuildState,