Auto merge of #11781 - sjmelia:8719_support_for_css_active, r=Manishearth

Issue 8719: Add basic support for :active selector

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Added toggling of active state for element and parents on mousedown/mouseup. Active state is removed when mouseout. (hover)

- As with my other PR i'm struggling a bit with the automated testing. I've added a manual test case and found quirks-mode/active-and-hover-manual.html which - aside from also being a manual test, is functional in Firefox but does not render correctly in Servo.
- Not implemented: In Firefox, behaviour differs with a <!DOCTYPE HTML> and an anchor does not lose it's activation on mouseout; whereas a button does.

---
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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #8719  (github issue number if applicable).

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- [ ] There are tests for these changes OR
- [ ] These changes do not require tests because _____

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This commit is contained in:
bors-servo 2016-07-08 05:06:57 -07:00 committed by GitHub
commit 5afdf7fb5c
5 changed files with 63 additions and 2 deletions

View file

@ -735,9 +735,22 @@ impl Document {
// https://w3c.github.io/uievents/#trusted-events
event.set_trusted(true);
// https://html.spec.whatwg.org/multipage/#run-authentic-click-activation-steps
let activatable = el.as_maybe_activatable();
match mouse_event_type {
MouseEventType::Click => el.authentic_click_activation(event),
_ => {
MouseEventType::MouseDown => {
if let Some(a) = activatable {
a.enter_formal_activation_state();
}
let target = node.upcast();
event.fire(target);
},
MouseEventType::MouseUp => {
if let Some(a) = activatable {
a.exit_formal_activation_state();
}
let target = node.upcast();
event.fire(target);
},
@ -904,6 +917,7 @@ impl Document {
.inclusive_ancestors()
.filter_map(Root::downcast::<Element>) {
element.set_hover_state(false);
element.set_active_state(false);
}
}