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Auto merge of #15129 - cynicaldevil:iframe-resize, r=emilio

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Refactor to send iframe resize messages directly from layout thread to constellation

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---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #14682.
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r? @jdm
passing tests:
tests/wpt/mozilla/tests/css/matchMedia.html, tests/wpt/mozilla/tests/mozilla/window_resize_not_triggered_on_load.html, tests/wpt/mozilla/tests/mozilla/iframe/resize_after_load.html, tests/wpt/mozilla/tests/css/meta_viewport_resize.html

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This commit is contained in:
bors-servo 2017-01-23 06:08:02 -08:00 • committed by GitHub
commit 7e2329ea4e
6 changed files with 54 additions and 44 deletions
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51
components/constellation/constellation.rs
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@ -817,12 +817,6 @@ impl<Message, LTF, STF> Constellation<Message, LTF, STF>
debug!("constellation exiting");
self.handle_exit();
}
// The compositor discovered the size of a subframe. This needs to be reflected by all
// frame trees in the navigation context containing the subframe.
FromCompositorMsg::FrameSize(pipeline_id, size) => {
debug!("constellation got frame size message");
self.handle_frame_size_msg(pipeline_id, &TypedSize2D::from_untyped(&size));
}
FromCompositorMsg::GetFrame(pipeline_id, resp_chan) => {
debug!("constellation got get root pipeline message");
self.handle_get_frame(pipeline_id, resp_chan);
@ -1089,6 +1083,12 @@ impl<Message, LTF, STF> Constellation<Message, LTF, STF>
FromLayoutMsg::ChangeRunningAnimationsState(pipeline_id, animation_state) => {
self.handle_change_running_animations_state(pipeline_id, animation_state)
}
// Layout sends new sizes for all subframes. This needs to be reflected by all
// frame trees in the navigation context containing the subframe.
FromLayoutMsg::FrameSizes(iframe_sizes) => {
debug!("constellation got frame size message");
self.handle_frame_size_msg(iframe_sizes);
}
FromLayoutMsg::SetCursor(cursor) => {
self.handle_set_cursor_msg(cursor)
}
@ -1327,30 +1327,27 @@ impl<Message, LTF, STF> Constellation<Message, LTF, STF>
}
fn handle_frame_size_msg(&mut self,
pipeline_id: PipelineId,
size: &TypedSize2D<f32, PagePx>) {
let msg = ConstellationControlMsg::Resize(pipeline_id, WindowSizeData {
visible_viewport: *size,
initial_viewport: *size * ScaleFactor::new(1.0),
device_pixel_ratio: self.window_size.device_pixel_ratio,
}, WindowSizeType::Initial);
// Store the new rect inside the pipeline
let result = {
// Find the pipeline that corresponds to this rectangle. It's possible that this
// pipeline may have already exited before we process this message, so just
// early exit if that occurs.
match self.pipelines.get_mut(&pipeline_id) {
iframe_sizes: Vec<(PipelineId, TypedSize2D<f32, PagePx>)>) {
for (pipeline_id, size) in iframe_sizes {
let result = match self.pipelines.get_mut(&pipeline_id) {
Some(pipeline) => {
pipeline.size = Some(*size);
pipeline.event_loop.send(msg)
if pipeline.size != Some(size) {
pipeline.size = Some(size);
let msg = ConstellationControlMsg::Resize(pipeline_id, WindowSizeData {
visible_viewport: size,
initial_viewport: size * ScaleFactor::new(1.0),
device_pixel_ratio: self.window_size.device_pixel_ratio,
}, WindowSizeType::Initial);
Some(pipeline.event_loop.send(msg))
} else {
None
}
}
None => return,
None => None
};
if let Some(Err(e)) = result {
self.handle_send_error(pipeline_id, e);
}
};
if let Err(e) = result {
self.handle_send_error(pipeline_id, e);
}
}