forked from mirrors/gecko-dev
a4f7ce3218
This implements just enough of [Touch Events](http://w3c.github.io/touch-events/) to enable scrolling on Android without regressing basic single-touch interaction like clicking on links. Dragging a page will scroll it, unless the page calls `preventDefault` on the "touchstart" event. Does **not** yet support pinch zooming or other multi-touch gestures or events. Includes a `-Z convert-mouse-to-touch` command line flag for testing on non-touch platforms. This is also enabled by default on Android because Glutin currently translates touch input to mouse events on Android. Source-Repo: https://github.com/servo/servo Source-Revision: dcd207f9bf15c9ecf5d043385ba93277e69201f6
50 lines
1.7 KiB
Rust
50 lines
1.7 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use dom::bindings::codegen::Bindings::TouchListBinding;
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use dom::bindings::codegen::Bindings::TouchListBinding::TouchListMethods;
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use dom::bindings::global::GlobalRef;
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use dom::bindings::js::{JS, Root};
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use dom::bindings::utils::{Reflector, reflect_dom_object};
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use dom::touch::Touch;
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use dom::window::Window;
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#[dom_struct]
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pub struct TouchList {
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reflector_: Reflector,
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touches: Vec<JS<Touch>>,
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}
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impl TouchList {
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fn new_inherited(touches: &[&Touch]) -> TouchList {
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TouchList {
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reflector_: Reflector::new(),
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touches: touches.iter().map(|touch| JS::from_ref(*touch)).collect(),
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}
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}
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pub fn new(window: &Window, touches: &[&Touch]) -> Root<TouchList> {
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reflect_dom_object(box TouchList::new_inherited(touches),
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GlobalRef::Window(window), TouchListBinding::Wrap)
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}
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}
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impl TouchListMethods for TouchList {
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/// https://w3c.github.io/touch-events/#widl-TouchList-length
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fn Length(&self) -> u32 {
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self.touches.len() as u32
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}
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/// https://w3c.github.io/touch-events/#widl-TouchList-item-getter-Touch-unsigned-long-index
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fn Item(&self, index: u32) -> Option<Root<Touch>> {
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self.touches.get(index as usize).map(JS::root)
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}
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/// https://w3c.github.io/touch-events/#widl-TouchList-item-getter-Touch-unsigned-long-index
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fn IndexedGetter(&self, index: u32, found: &mut bool) -> Option<Root<Touch>> {
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let item = self.Item(index);
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*found = item.is_some();
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item
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}
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}
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