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Add support for transitionrun events

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These events are triggered as soon as a transition is added to the list
of running transitions. This will allow better test coverage while
reworking the transitions and animations processing model.
This commit is contained in:
Martin Robinson 2020-04-23 17:06:24 +02:00
parent 0540c4a284
commit d386d6d1f1
11 changed files with 105 additions and 93 deletions
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17
components/script/script_thread.rs
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@ -2920,22 +2920,20 @@ impl ScriptThread {
let js_runtime = self.js_runtime.rt();
let node = unsafe { from_untrusted_node_address(js_runtime, unsafe_node) };
let idx = self
let node_index = self
.transitioning_nodes
.borrow()
.iter()
.position(|n| &**n as *const _ == &*node as *const _);
match idx {
Some(idx) => {
self.transitioning_nodes.borrow_mut().remove(idx);
},
let node_index = match node_index {
Some(node_index) => node_index,
None => {
// If no index is found, we can't know whether this node is safe to use.
// It's better not to fire a DOM event than crash.
warn!("Ignoring transition end notification for unknown node.");
return;
},
}
};
if self.closed_pipelines.borrow().contains(&pipeline_id) {
warn!("Ignoring transition event for closed pipeline.");
@ -2943,12 +2941,17 @@ impl ScriptThread {
}
let event_atom = match event_type {
TransitionEventType::TransitionRun => atom!("transitionrun"),
TransitionEventType::TransitionEnd => {
// Not quite the right thing - see #13865.
node.dirty(NodeDamage::NodeStyleDamaged);
self.transitioning_nodes.borrow_mut().remove(node_index);
atom!("transitionend")
},
TransitionEventType::TransitionCancel => atom!("transitioncancel"),
TransitionEventType::TransitionCancel => {
self.transitioning_nodes.borrow_mut().remove(node_index);
atom!("transitioncancel")
},
};
let event_init = TransitionEventInit {