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feat(XR): Handle WebXR XRInputSourceEvents #2221

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feat(XR): Handle WebXR XRInputSourceEvents #2221

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59 changes: 59 additions & 0 deletions Sources/Rendering/Core/RenderWindowInteractor/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -59,6 +59,12 @@ const handledEvents = [
'StartInteraction',
'Interaction',
'EndInteraction',
'StartXrSelect',
'XrSelect',
'EndXrSelect',
'StartXrSqueeze',
'XrSqueeze',
'EndXrSqueeze',
Comment on lines +62 to +67
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I think capitalizing the 'R' in 'XR' for consistency is a good idea here.

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still relevant?

];

function preventDefault(event) {
Expand Down Expand Up @@ -247,6 +253,16 @@ function vtkRenderWindowInteractor(publicAPI, model) {
container.addEventListener('touchstart', publicAPI.handleTouchStart, false);
};

publicAPI.bindXREvents = (xrSession) => {
model.xrSession = xrSession;
xrSession.addEventListener('selectstart', publicAPI.handleXRSelectStart);
xrSession.addEventListener('select', publicAPI.handleXRSelect);
xrSession.addEventListener('selectend', publicAPI.handleXRSelectEnd);
xrSession.addEventListener('squeezestart', publicAPI.handleXRSqueezeStart);
xrSession.addEventListener('squeeze', publicAPI.handleXRSqueeze);
xrSession.addEventListener('squeezeend', publicAPI.handleXRSqueezeEnd);
};

publicAPI.unbindEvents = () => {
// force unbinding listeners
interactionRegistration(false, true);
Expand Down Expand Up @@ -281,6 +297,28 @@ function vtkRenderWindowInteractor(publicAPI, model) {
model.container = null;
};

publicAPI.unbindXREvents = () => {
model.xrSession.removeEventListener(
'selectstart',
publicAPI.handleXRSelectStart
);
model.xrSession.removeEventListener('select', publicAPI.handleXRSelect);
model.xrSession.removeEventListener(
'selectend',
publicAPI.handleXRSelectEnd
);
model.xrSession.removeEventListener(
'squeezestart',
publicAPI.handleXRSqueezeStart
);
model.xrSession.removeEventListener('squeeze', publicAPI.handleXRSqueeze);
model.xrSession.removeEventListener(
'squeezeend',
publicAPI.handleXRSqueezeEnd
);
model.xrSession = null;
};

publicAPI.handleKeyPress = (event) => {
const data = getKeysFor(event);
publicAPI.keyPressEvent(data);
Expand Down Expand Up @@ -325,6 +363,26 @@ function vtkRenderWindowInteractor(publicAPI, model) {
}
};

publicAPI.handleXRSelect = (event) => {
publicAPI.xrSelectEvent({ xrEvent: event });
};

publicAPI.handleXRSelectStart = (event) => {
publicAPI.startXrSelectEvent({ xrEvent: event });
};
publicAPI.handleXRSelectEnd = (event) => {
publicAPI.endXrSelectEvent({ xrEvent: event });
};
publicAPI.handleXRSqueezeStart = (event) => {
publicAPI.startXrSqueezeEvent({ xrEvent: event });
};
publicAPI.handleXRSqueeze = (event) => {
publicAPI.xrSqueezeEvent({ xrEvent: event });
};
publicAPI.handleXRSqueezeEnd = (event) => {
publicAPI.endXrSqueezeEvent({ xrEvent: event });
};

//----------------------------------------------------------------------
publicAPI.requestPointerLock = () => {
const canvas = publicAPI.getView().getCanvas();
Expand Down Expand Up @@ -1036,6 +1094,7 @@ const DEFAULT_VALUES = {
wheelTimeoutID: 0,
moveTimeoutID: 0,
lastGamepadValues: {},
xrSession: null,
};

// ----------------------------------------------------------------------------
Expand Down
4 changes: 4 additions & 0 deletions Sources/Rendering/OpenGL/RenderWindow/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -311,6 +311,8 @@ function vtkOpenGLRenderWindow(publicAPI, model) {
model.xrSession = xrSession;
model.oldCanvasSize = model.size.slice();

model.renderable.getInteractor().bindXREvents(xrSession);

if (model.xrSession !== null) {
const gl = publicAPI.get3DContext();
await gl.makeXRCompatible();
Expand Down Expand Up @@ -384,6 +386,8 @@ function vtkOpenGLRenderWindow(publicAPI, model) {
}

if (model.xrSession !== null) {
model.renderable.getInteractor().unbindXREvents();

model.xrSession.cancelAnimationFrame(model.xrSceneFrame);
model.renderable.getInteractor().returnFromXRAnimation();
const gl = publicAPI.get3DContext();
Expand Down