forked from mirrors/gecko-dev
1d9a694577
Address https://github.com/servo/servo/issues/6542 Ensure that click() calls are not limited to activatable elements. Also makes the isTrusted attribute false when synthetic click activation are called from a click() method (as per spec). Source-Repo: https://github.com/servo/servo Source-Revision: f2f6787189d8ea021cbd4ea3425d39ef8b1b8f93
98 lines
3.4 KiB
Rust
98 lines
3.4 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
use dom::bindings::codegen::Bindings::EventBinding::EventMethods;
|
|
use dom::bindings::inheritance::Castable;
|
|
use dom::element::Element;
|
|
use dom::event::{Event, EventBubbles, EventCancelable};
|
|
use dom::eventtarget::EventTarget;
|
|
use dom::mouseevent::MouseEvent;
|
|
use dom::node::window_from_node;
|
|
use util::str::DOMString;
|
|
|
|
/// Trait for elements with defined activation behavior
|
|
pub trait Activatable {
|
|
fn as_element(&self) -> ∈
|
|
|
|
// Is this particular instance of the element activatable?
|
|
fn is_instance_activatable(&self) -> bool;
|
|
|
|
// https://html.spec.whatwg.org/multipage/#run-pre-click-activation-steps
|
|
fn pre_click_activation(&self);
|
|
|
|
// https://html.spec.whatwg.org/multipage/#run-canceled-activation-steps
|
|
fn canceled_activation(&self);
|
|
|
|
// https://html.spec.whatwg.org/multipage/#run-post-click-activation-steps
|
|
fn activation_behavior(&self, event: &Event, target: &EventTarget);
|
|
|
|
// https://html.spec.whatwg.org/multipage/#implicit-submission
|
|
fn implicit_submission(&self, ctrlKey: bool, shiftKey: bool, altKey: bool, metaKey: bool);
|
|
}
|
|
|
|
/// Whether an activation was initiated via the click() method
|
|
#[derive(PartialEq)]
|
|
pub enum ActivationSource {
|
|
FromClick,
|
|
NotFromClick,
|
|
}
|
|
|
|
// https://html.spec.whatwg.org/multipage/#run-synthetic-click-activation-steps
|
|
pub fn synthetic_click_activation(element: &Element,
|
|
ctrlKey: bool,
|
|
shiftKey: bool,
|
|
altKey: bool,
|
|
metaKey: bool,
|
|
source: ActivationSource) {
|
|
// Step 1
|
|
if element.click_in_progress() {
|
|
return;
|
|
}
|
|
// Step 2
|
|
element.set_click_in_progress(true);
|
|
// Step 3
|
|
let activatable = element.as_maybe_activatable();
|
|
if let Some(a) = activatable {
|
|
a.pre_click_activation();
|
|
}
|
|
|
|
// Step 4
|
|
// https://html.spec.whatwg.org/multipage/#fire-a-synthetic-mouse-event
|
|
let win = window_from_node(element);
|
|
let target = element.upcast::<EventTarget>();
|
|
let mouse = MouseEvent::new(win.r(),
|
|
DOMString::from("click"),
|
|
EventBubbles::DoesNotBubble,
|
|
EventCancelable::NotCancelable,
|
|
Some(win.r()),
|
|
1,
|
|
0,
|
|
0,
|
|
0,
|
|
0,
|
|
ctrlKey,
|
|
shiftKey,
|
|
altKey,
|
|
metaKey,
|
|
0,
|
|
None);
|
|
let event = mouse.upcast::<Event>();
|
|
if source == ActivationSource::FromClick {
|
|
event.set_trusted(false);
|
|
}
|
|
target.dispatch_event(event);
|
|
|
|
// Step 5
|
|
if let Some(a) = activatable {
|
|
if event.DefaultPrevented() {
|
|
a.canceled_activation();
|
|
} else {
|
|
// post click activation
|
|
a.activation_behavior(event, target);
|
|
}
|
|
}
|
|
|
|
// Step 6
|
|
element.set_click_in_progress(false);
|
|
}
|