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Dispatch touch events and perform default touch actions.

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This is currently limited to simple single-touch actions. It does not include
momentum scrolling or pinch zooming.
This commit is contained in:
Matt Brubeck 2015-08-14 07:24:50 -07:00
parent 4ed15a8853
commit fe7460f34d
9 changed files with 276 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

35
components/script/script_task.rs
View file

@ -60,7 +60,7 @@ use layout_interface::{ReflowQueryType};
use layout_interface::{self, LayoutChan, NewLayoutTaskInfo, ReflowGoal, ScriptLayoutChan};
use libc;
use mem::heap_size_of_self_and_children;
use msg::compositor_msg::{LayerId, ScriptToCompositorMsg};
use msg::compositor_msg::{EventResult, LayerId, ScriptToCompositorMsg};
use msg::constellation_msg::Msg as ConstellationMsg;
use msg::constellation_msg::{ConstellationChan, FocusType, LoadData};
use msg::constellation_msg::{MozBrowserEvent, PipelineExitType, PipelineId};
@ -79,6 +79,7 @@ use profile_traits::time::{self, ProfilerCategory, profile};
use script_traits::CompositorEvent::{ClickEvent, ResizeEvent};
use script_traits::CompositorEvent::{KeyEvent, MouseMoveEvent};
use script_traits::CompositorEvent::{MouseDownEvent, MouseUpEvent};
use script_traits::CompositorEvent::{TouchDownEvent, TouchMoveEvent, TouchUpEvent};
use script_traits::{CompositorEvent, ConstellationControlMsg};
use script_traits::{InitialScriptState, MouseButton, NewLayoutInfo};
use script_traits::{OpaqueScriptLayoutChannel, ScriptState, ScriptTaskFactory};
@ -1784,6 +1785,27 @@ impl ScriptTask {
std_mem::swap(&mut *self.mouse_over_targets.borrow_mut(), &mut *mouse_over_targets);
}
TouchDownEvent(identifier, point) => {
let default_action_allowed =
self.handle_touch_event(pipeline_id, identifier, point, "touchstart");
if default_action_allowed {
// TODO: Wait to see if preventDefault is called on the first touchmove event.
self.compositor.borrow_mut().send(ScriptToCompositorMsg::TouchEventProcessed(
EventResult::DefaultAllowed)).unwrap();
} else {
self.compositor.borrow_mut().send(ScriptToCompositorMsg::TouchEventProcessed(
EventResult::DefaultPrevented)).unwrap();
}
}
TouchMoveEvent(identifier, point) => {
self.handle_touch_event(pipeline_id, identifier, point, "touchmove");
}
TouchUpEvent(identifier, point) => {
self.handle_touch_event(pipeline_id, identifier, point, "touchend");
}
KeyEvent(key, state, modifiers) => {
let page = get_page(&self.root_page(), pipeline_id);
let document = page.document();
@ -1803,6 +1825,17 @@ impl ScriptTask {
document.r().handle_mouse_event(self.js_runtime.rt(), button, point, mouse_event_type);
}
fn handle_touch_event(&self,
pipeline_id: PipelineId,
identifier: i32,
point: Point2D<f32>,
event_name: &str) -> bool {
let page = get_page(&self.root_page(), pipeline_id);
let document = page.document();
document.r().handle_touch_event(self.js_runtime.rt(), identifier, point,
event_name.to_owned())
}
/// https://html.spec.whatwg.org/multipage/#navigating-across-documents
/// The entry point for content to notify that a new load has been requested
/// for the given pipeline (specifically the "navigate" algorithm).