Merge webxr repository (#35228)

Signed-off-by: Martin Robinson <mrobinson@igalia.com>

components/shared/webxr/mock.rs

@@ -0,0 +1,146 @@
+/* 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 https://mozilla.org/MPL/2.0/. */
+
+use crate::DiscoveryAPI;
+use crate::Display;
+use crate::EntityType;
+use crate::Error;
+use crate::Floor;
+use crate::Handedness;
+use crate::Input;
+use crate::InputId;
+use crate::InputSource;
+use crate::LeftEye;
+use crate::Native;
+use crate::Receiver;
+use crate::RightEye;
+use crate::SelectEvent;
+use crate::SelectKind;
+use crate::Sender;
+use crate::TargetRayMode;
+use crate::Triangle;
+use crate::Viewer;
+use crate::Viewport;
+use crate::Visibility;
+
+use euclid::{Point2D, Rect, RigidTransform3D, Transform3D};
+
+#[cfg(feature = "ipc")]
+use serde::{Deserialize, Serialize};
+
+/// A trait for discovering mock XR devices
+pub trait MockDiscoveryAPI<GL>: 'static {
+    fn simulate_device_connection(
+        &mut self,
+        init: MockDeviceInit,
+        receiver: Receiver<MockDeviceMsg>,
+    ) -> Result<Box<dyn DiscoveryAPI<GL>>, Error>;
+}
+
+#[derive(Clone, Debug)]
+#[cfg_attr(feature = "ipc", derive(Serialize, Deserialize))]
+pub struct MockDeviceInit {
+    pub floor_origin: Option<RigidTransform3D<f32, Floor, Native>>,
+    pub supports_inline: bool,
+    pub supports_vr: bool,
+    pub supports_ar: bool,
+    pub viewer_origin: Option<RigidTransform3D<f32, Viewer, Native>>,
+    pub views: MockViewsInit,
+    pub supported_features: Vec<String>,
+    pub world: Option<MockWorld>,
+}
+
+#[derive(Clone, Debug)]
+#[cfg_attr(feature = "ipc", derive(Serialize, Deserialize))]
+pub struct MockViewInit<Eye> {
+    pub transform: RigidTransform3D<f32, Viewer, Eye>,
+    pub projection: Transform3D<f32, Eye, Display>,
+    pub viewport: Rect<i32, Viewport>,
+    /// field of view values, in radians
+    pub fov: Option<(f32, f32, f32, f32)>,
+}
+
+#[derive(Clone, Debug)]
+#[cfg_attr(feature = "ipc", derive(Serialize, Deserialize))]
+pub enum MockViewsInit {
+    Mono(MockViewInit<Viewer>),
+    Stereo(MockViewInit<LeftEye>, MockViewInit<RightEye>),
+}
+
+#[derive(Debug)]
+#[cfg_attr(feature = "ipc", derive(Serialize, Deserialize))]
+pub enum MockDeviceMsg {
+    SetViewerOrigin(Option<RigidTransform3D<f32, Viewer, Native>>),
+    SetFloorOrigin(Option<RigidTransform3D<f32, Floor, Native>>),
+    SetViews(MockViewsInit),
+    AddInputSource(MockInputInit),
+    MessageInputSource(InputId, MockInputMsg),
+    VisibilityChange(Visibility),
+    SetWorld(MockWorld),
+    ClearWorld,
+    Disconnect(Sender<()>),
+    SetBoundsGeometry(Vec<Point2D<f32, Floor>>),
+    SimulateResetPose,
+}
+
+#[derive(Clone, Debug)]
+#[cfg_attr(feature = "ipc", derive(Serialize, Deserialize))]
+pub struct MockInputInit {
+    pub source: InputSource,
+    pub pointer_origin: Option<RigidTransform3D<f32, Input, Native>>,
+    pub grip_origin: Option<RigidTransform3D<f32, Input, Native>>,
+    pub supported_buttons: Vec<MockButton>,
+}
+
+#[derive(Debug)]
+#[cfg_attr(feature = "ipc", derive(Serialize, Deserialize))]
+pub enum MockInputMsg {
+    SetHandedness(Handedness),
+    SetTargetRayMode(TargetRayMode),
+    SetProfiles(Vec<String>),
+    SetPointerOrigin(Option<RigidTransform3D<f32, Input, Native>>),
+    SetGripOrigin(Option<RigidTransform3D<f32, Input, Native>>),
+    /// Note: SelectEvent::Select here refers to a complete Select event,
+    /// not just the end event, i.e. it refers to
+    /// https://immersive-web.github.io/webxr-test-api/#dom-fakexrinputcontroller-simulateselect
+    TriggerSelect(SelectKind, SelectEvent),
+    Disconnect,
+    Reconnect,
+    SetSupportedButtons(Vec<MockButton>),
+    UpdateButtonState(MockButton),
+}
+
+#[derive(Clone, Debug)]
+#[cfg_attr(feature = "ipc", derive(Serialize, Deserialize))]
+pub struct MockRegion {
+    pub faces: Vec<Triangle>,
+    pub ty: EntityType,
+}
+
+#[derive(Clone, Debug)]
+#[cfg_attr(feature = "ipc", derive(Serialize, Deserialize))]
+pub struct MockWorld {
+    pub regions: Vec<MockRegion>,
+}
+
+#[derive(Clone, Debug, PartialEq)]
+#[cfg_attr(feature = "ipc", derive(Serialize, Deserialize))]
+pub enum MockButtonType {
+    Grip,
+    Touchpad,
+    Thumbstick,
+    OptionalButton,
+    OptionalThumbstick,
+}
+
+#[derive(Clone, Debug)]
+#[cfg_attr(feature = "ipc", derive(Serialize, Deserialize))]
+pub struct MockButton {
+    pub button_type: MockButtonType,
+    pub pressed: bool,
+    pub touched: bool,
+    pub pressed_value: f32,
+    pub x_value: f32,
+    pub y_value: f32,
+}