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script: Stop destroying all flows on every mouse-over event.

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This commit is contained in:
Patrick Walton 2015-03-27 19:00:31 -07:00
parent afbc51a746
commit 1fe55a27b1
2 changed files with 17 additions and 13 deletions
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26
components/script/dom/document.rs
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@ -219,9 +219,13 @@ pub trait DocumentHelpers<'a> {
fn handle_click_event(self, js_runtime: *mut JSRuntime, _button: uint, point: Point2D<f32>);
fn dispatch_key_event(self, key: Key, state: KeyState,
modifiers: KeyModifiers, compositor: &mut Box<ScriptListener+'static>);
/// Return need force reflow or not
fn handle_mouse_move_event(self, js_runtime: *mut JSRuntime, point: Point2D<f32>,
prev_mouse_over_targets: &mut Vec<JS<Node>>) -> bool;
/// Handles a mouse-move event coming from the compositor.
fn handle_mouse_move_event(self,
js_runtime: *mut JSRuntime,
point: Point2D<f32>,
prev_mouse_over_targets: &mut Vec<JS<Node>>);
fn set_current_script(self, script: Option<JSRef<HTMLScriptElement>>);
fn trigger_mozbrowser_event(self, event: MozBrowserEvent);
}
@ -538,10 +542,10 @@ impl<'a> DocumentHelpers<'a> for JSRef<'a, Document> {
window.r().reflow(ReflowGoal::ForDisplay, ReflowQueryType::NoQuery, ReflowReason::MouseEvent);
}
/// Return need force reflow or not
fn handle_mouse_move_event(self, js_runtime: *mut JSRuntime, point: Point2D<f32>,
prev_mouse_over_targets: &mut Vec<JS<Node>>) -> bool {
let mut needs_reflow = false;
fn handle_mouse_move_event(self,
js_runtime: *mut JSRuntime,
point: Point2D<f32>,
prev_mouse_over_targets: &mut Vec<JS<Node>>) {
// Build a list of elements that are currently under the mouse.
let mouse_over_addresses = self.get_nodes_under_mouse(&point);
let mouse_over_targets: Vec<JS<Node>> = mouse_over_addresses.iter()
@ -555,7 +559,6 @@ impl<'a> DocumentHelpers<'a> for JSRef<'a, Document> {
for target in prev_mouse_over_targets.iter() {
if !mouse_over_targets.contains(target) {
target.root().r().set_hover_state(false);
needs_reflow = true;
}
}
@ -567,7 +570,6 @@ impl<'a> DocumentHelpers<'a> for JSRef<'a, Document> {
let target_ref = target.r();
if !target_ref.get_hover_state() {
target_ref.set_hover_state(true);
needs_reflow = true;
}
}
@ -598,7 +600,11 @@ impl<'a> DocumentHelpers<'a> for JSRef<'a, Document> {
// Store the current mouse over targets for next frame
*prev_mouse_over_targets = mouse_over_targets;
needs_reflow
let window = self.window.root();
window.r().reflow(ReflowGoal::ForDisplay,
ReflowQueryType::NoQuery,
ReflowReason::MouseEvent);
}
/// The entry point for all key processing for web content