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Auto merge of #8326 - jdm:iframehover, r=glennw

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Send mouse move events to the the previous layer when directing event…

…s to a new one for the first time. Resolves #7865.

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This commit is contained in:
bors-servo 2015-11-06 06:24:59 +05:30
commit 4067960ba5
4 changed files with 41 additions and 12 deletions
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26
components/compositing/compositor.rs
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@ -35,7 +35,7 @@ use msg::constellation_msg::{NavigationDirection, PipelineId, WindowSizeData};
use pipeline::CompositionPipeline;
use profile_traits::mem::{self, ReportKind, Reporter, ReporterRequest};
use profile_traits::time::{self, ProfilerCategory, profile};
use script_traits::CompositorEvent::TouchEvent;
use script_traits::CompositorEvent::{MouseMoveEvent, TouchEvent};
use script_traits::{ConstellationControlMsg, LayoutControlMsg, MouseButton};
use script_traits::{TouchEventType, TouchId};
use scrolling::ScrollingTimerProxy;
@ -201,6 +201,9 @@ pub struct IOCompositor<Window: WindowMethods> {
/// Pipeline IDs of subpages that the compositor has seen in a layer tree but which have not
/// yet been painted.
pending_subpages: HashSet<PipelineId>,
/// The id of the pipeline that was last sent a mouse move event, if any.
last_mouse_move_recipient: Option<PipelineId>,
}
/// The states of the touch input state machine.
@ -370,6 +373,7 @@ impl<Window: WindowMethods> IOCompositor<Window> {
ready_to_save_state: ReadyState::Unknown,
surface_map: SurfaceMap::new(BUFFER_MAP_SIZE),
pending_subpages: HashSet::new(),
last_mouse_move_recipient: None,
}
}
@ -1205,8 +1209,24 @@ impl<Window: WindowMethods> IOCompositor<Window> {
}
match self.find_topmost_layer_at_point(cursor / self.scene.scale) {
Some(result) => result.layer.send_mouse_move_event(self, result.point),
None => {},
Some(result) => {
// In the case that the mouse was previously over a different layer,
// that layer must update its state.
if let Some(last_pipeline_id) = self.last_mouse_move_recipient {
if last_pipeline_id != result.layer.pipeline_id() {
if let Some(pipeline) = self.pipeline(last_pipeline_id) {
let _ = pipeline.script_chan
.send(ConstellationControlMsg::SendEvent(
last_pipeline_id.clone(),
MouseMoveEvent(None)));
}
}
}
self.last_mouse_move_recipient = Some(result.layer.pipeline_id());
result.layer.send_mouse_move_event(self, result.point);
}
None => {}
}
}