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script: Chain up keyboard scrolling to parent <iframe>s (#39469)

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When an `<iframe>` cannot scroll because the size of the frame is
greater than or
equal to the size of page contents, chain up the keyboard scroll
operation to the parent frame.

Testing: A new Servo-only WPT tests is added, though needs to be
manually
run with `--product servodriver`.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Delan Azabani <dazabani@igalia.com>
This commit is contained in:
Martin Robinson 2025-09-25 13:16:41 +02:00 • committed by GitHub
parent 75e32ba5a4
commit ffdb7d3663
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23 changed files with 406 additions and 132 deletions
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1
components/shared/constellation/Cargo.toml
View file

@ -26,6 +26,7 @@ fonts_traits = { workspace = true }
http = { workspace = true }
hyper_serde = { workspace = true }
ipc-channel = { workspace = true }
keyboard-types = { workspace = true }
log = { workspace = true }
malloc_size_of = { workspace = true }
malloc_size_of_derive = { workspace = true }

23
components/shared/constellation/from_script_message.rs
View file

@ -480,6 +480,27 @@ pub struct IFrameSizeMsg {
pub type_: WindowSizeType,
}
/// An enum that describe a type of keyboard scroll.
#[derive(Clone, Copy, Debug, Deserialize, Serialize)]
pub enum KeyboardScroll {
/// Scroll the container one line up.
Up,
/// Scroll the container one line down.
Down,
/// Scroll the container one "line" left.
Left,
/// Scroll the container one "line" right.
Right,
/// Scroll the container one page up.
PageUp,
/// Scroll the container one page down.
PageDown,
/// Scroll the container to the vertical start.
Home,
/// Scroll the container to the vertical end.
End,
}
/// Messages from the script to the constellation.
#[derive(Deserialize, IntoStaticStr, Serialize)]
pub enum ScriptToConstellationMessage {
@ -665,6 +686,8 @@ pub enum ScriptToConstellationMessage {
),
/// Notify the completion of a webdriver command.
WebDriverInputComplete(WebDriverMessageId),
/// Forward a keyboard scroll operation from an `<iframe>` to a parent pipeline.
ForwardKeyboardScroll(PipelineId, KeyboardScroll),
}
impl fmt::Debug for ScriptToConstellationMessage {