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Add a compositor-side scroll tree

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This will allow the compositor to properly chain scrolling requests up
when a node has reached the extent of the scroll area. This fixes
scrolling on servo.org.
This commit is contained in:
Martin Robinson 2023-05-15 15:48:12 +02:00
parent 918557ad6d
commit c56a814806
12 changed files with 677 additions and 102 deletions
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4
components/script_traits/lib.rs
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@ -30,6 +30,7 @@ use crate::transferable::MessagePortImpl;
use crate::webdriver_msg::{LoadStatus, WebDriverScriptCommand};
use bluetooth_traits::BluetoothRequest;
use canvas_traits::webgl::WebGLPipeline;
use compositor::ScrollTreeNodeId;
use crossbeam_channel::{Receiver, RecvTimeoutError, Sender};
use devtools_traits::{DevtoolScriptControlMsg, ScriptToDevtoolsControlMsg, WorkerId};
use embedder_traits::{Cursor, EventLoopWaker};
@ -1118,6 +1119,9 @@ pub struct CompositorHitTestResult {
/// The cursor that should be used when hovering the item hit by the hit test.
pub cursor: Option<Cursor>,
/// The scroll tree node associated with this hit test item.
pub scroll_tree_node: ScrollTreeNodeId,
}
/// The set of WebRender operations that can be initiated by the content process.