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Create a solid rectangle display list entry for the page background.

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This commit is contained in:
Josh Matthews 2019-06-10 17:09:44 -04:00
parent e57e2121b2
commit 10ab466e5d
4 changed files with 37 additions and 11 deletions
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25
components/layout/sequential.rs
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@ -6,6 +6,7 @@
use crate::context::LayoutContext;
use crate::display_list::{DisplayListBuildState, StackingContextCollectionState};
use crate::display_list::items::{self, CommonDisplayItem, DisplayItem, DisplayListSection};
use crate::floats::SpeculatedFloatPlacement;
use crate::flow::{Flow, FlowFlags, GetBaseFlow, ImmutableFlowUtils};
use crate::fragment::{CoordinateSystem, FragmentBorderBoxIterator};
@ -14,7 +15,7 @@ use crate::incremental::RelayoutMode;
use crate::traversal::{AssignBSizes, AssignISizes, BubbleISizes, BuildDisplayList};
use crate::traversal::{InorderFlowTraversal, PostorderFlowTraversal, PreorderFlowTraversal};
use app_units::Au;
use euclid::{Point2D, Vector2D};
use euclid::{Point2D, Rect, Size2D, Vector2D};
use servo_config::opts;
use style::servo::restyle_damage::ServoRestyleDamage;
use webrender_api::units::LayoutPoint;
@ -72,11 +73,31 @@ pub fn reflow(root: &mut dyn Flow, layout_context: &LayoutContext, relayout_mode
pub fn build_display_list_for_subtree<'a>(
flow_root: &mut dyn Flow,
layout_context: &'a LayoutContext,
background_color: webrender_api::ColorF,
client_size: Size2D<Au>,
) -> DisplayListBuildState<'a> {
let mut state = StackingContextCollectionState::new(layout_context.id);
flow_root.collect_stacking_contexts(&mut state);
let state = DisplayListBuildState::new(layout_context, state);
let mut state = DisplayListBuildState::new(layout_context, state);
// Create a base rectangle for the page background based on the root
// background color.
let base = state.create_base_display_item(
Rect::new(Point2D::new(Au::new(0), Au::new(0)), client_size),
Rect::new(Point2D::new(Au::new(0), Au::new(0)), client_size),
flow_root.as_block().fragment.node,
None,
DisplayListSection::BackgroundAndBorders,
);
state.add_display_item(DisplayItem::Rectangle(CommonDisplayItem::new(
base,
webrender_api::RectangleDisplayItem {
color: background_color,
common: items::empty_common_item_properties(),
},
)));
let mut build_display_list = BuildDisplayList { state: state };
build_display_list.traverse(flow_root);
build_display_list.state