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836c701cb3
The algorithm used to detect when and where the stylus or finger is touching the tablet has been improved. * hovering the finger/stylus over the surface of the tablet should cause buttons to highlight. * flicking or using the stylus like a drum stick, should more accurately click buttons on the tablet. * stabbing the tablet quickly, should also more accurately trigger button presses. * moving the hand/stylus from behind the tablet should be less likely to cause press events.
544 lines
21 KiB
JavaScript
544 lines
21 KiB
JavaScript
//
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// WebTablet.js
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//
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// Created by Anthony J. Thibault on 8/8/2016
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// Copyright 2016 High Fidelity, Inc.
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//
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// Distributed under the Apache License, Version 2.0.
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// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
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//
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/* global getControllerWorldLocation, Tablet, WebTablet:true, HMD, Settings, Script,
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Vec3, Quat, MyAvatar, Entities, Overlays, Camera, Messages, Xform, clamp, Controller, Mat4 */
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Script.include(Script.resolvePath("../libraries/utils.js"));
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Script.include(Script.resolvePath("../libraries/controllers.js"));
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Script.include(Script.resolvePath("../libraries/Xform.js"));
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var X_AXIS = {x: 1, y: 0, z: 0};
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var Y_AXIS = {x: 0, y: 1, z: 0};
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var DEFAULT_DPI = 34;
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var DEFAULT_WIDTH = 0.4375;
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var DEFAULT_VERTICAL_FIELD_OF_VIEW = 45; // degrees
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var SENSOR_TO_ROOM_MATRIX = -2;
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var CAMERA_MATRIX = -7;
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var ROT_Y_180 = {x: 0, y: 1, z: 0, w: 0};
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var TABLET_TEXTURE_RESOLUTION = { x: 480, y: 706 };
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var INCHES_TO_METERS = 1 / 39.3701;
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var AVATAR_SELF_ID = "{00000000-0000-0000-0000-000000000001}";
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var NO_HANDS = -1;
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// will need to be recaclulated if dimensions of fbx model change.
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var TABLET_NATURAL_DIMENSIONS = {x: 33.797, y: 50.129, z: 2.269};
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var HOME_BUTTON_TEXTURE = "http://hifi-content.s3.amazonaws.com/alan/dev/tablet-with-home-button.fbx/tablet-with-home-button.fbm/button-close.png";
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// var HOME_BUTTON_TEXTURE = Script.resourcesPath() + "meshes/tablet-with-home-button.fbx/tablet-with-home-button.fbm/button-close.png";
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var TABLET_MODEL_PATH = "http://hifi-content.s3.amazonaws.com/alan/dev/tablet-with-home-button.fbx";
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var LOCAL_TABLET_MODEL_PATH = Script.resourcesPath() + "meshes/tablet-with-home-button.fbx";
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// returns object with two fields:
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// * position - position in front of the user
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// * rotation - rotation of entity so it faces the user.
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function calcSpawnInfo(hand, height) {
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var finalPosition;
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var headPos = (HMD.active && Camera.mode === "first person") ? HMD.position : Camera.position;
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var headRot = (HMD.active && Camera.mode === "first person") ? HMD.orientation : Camera.orientation;
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if (HMD.active && hand !== NO_HANDS) {
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var handController = getControllerWorldLocation(hand, true);
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var controllerPosition = handController.position;
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// base of the tablet is slightly above controller position
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var TABLET_BASE_DISPLACEMENT = {x: 0, y: 0.1, z: 0};
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var tabletBase = Vec3.sum(controllerPosition, TABLET_BASE_DISPLACEMENT);
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var d = Vec3.subtract(headPos, tabletBase);
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var theta = Math.acos(d.y / Vec3.length(d));
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d.y = 0;
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if (Vec3.length(d) < 0.0001) {
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d = {x: 1, y: 0, z: 0};
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} else {
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d = Vec3.normalize(d);
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}
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var w = Vec3.normalize(Vec3.cross(Y_AXIS, d));
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var ANGLE_OFFSET = 25;
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var q = Quat.angleAxis(theta * (180 / Math.PI) - (90 - ANGLE_OFFSET), w);
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var u = Vec3.multiplyQbyV(q, d);
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// use u to compute a full lookAt quaternion.
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var lookAtRot = Quat.lookAt(tabletBase, Vec3.sum(tabletBase, u), Y_AXIS);
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var yDisplacement = (height / 2);
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var zDisplacement = 0.05;
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var tabletOffset = Vec3.multiplyQbyV(lookAtRot, {x: 0, y: yDisplacement, z: zDisplacement});
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finalPosition = Vec3.sum(tabletBase, tabletOffset);
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return {
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position: finalPosition,
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rotation: lookAtRot
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};
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} else {
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var front = Quat.getFront(headRot);
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finalPosition = Vec3.sum(headPos, Vec3.multiply(0.6, front));
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var orientation = Quat.lookAt({x: 0, y: 0, z: 0}, front, {x: 0, y: 1, z: 0});
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return {
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position: finalPosition,
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rotation: Quat.multiply(orientation, {x: 0, y: 1, z: 0, w: 0})
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};
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}
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}
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/**
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* WebTablet
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* @param url [string] url of content to show on the tablet.
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* @param width [number] width in meters of the tablet model
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* @param dpi [number] dpi of web surface used to show the content.
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* @param hand [number] -1 indicates no hand, Controller.Standard.RightHand or Controller.Standard.LeftHand
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* @param clientOnly [bool] true indicates tablet model is only visible to client.
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*/
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WebTablet = function (url, width, dpi, hand, clientOnly) {
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var _this = this;
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// scale factor of natural tablet dimensions.
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this.width = width || DEFAULT_WIDTH;
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var tabletScaleFactor = this.width / TABLET_NATURAL_DIMENSIONS.x;
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this.height = TABLET_NATURAL_DIMENSIONS.y * tabletScaleFactor;
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this.depth = TABLET_NATURAL_DIMENSIONS.z * tabletScaleFactor;
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if (dpi) {
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this.dpi = dpi;
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} else {
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this.dpi = DEFAULT_DPI * (DEFAULT_WIDTH / this.width);
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}
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var modelURL;
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if (Settings.getValue("tabletVisibleToOthers")) {
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modelURL = TABLET_MODEL_PATH;
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} else {
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modelURL = LOCAL_TABLET_MODEL_PATH;
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}
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var tabletProperties = {
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name: "WebTablet Tablet",
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type: "Model",
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modelURL: modelURL,
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url: modelURL, // for overlay
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grabbable: true, // for overlay
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userData: JSON.stringify({
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"grabbableKey": {"grabbable": true}
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}),
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dimensions: {x: this.width, y: this.height, z: this.depth},
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parentID: AVATAR_SELF_ID
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};
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// compute position, rotation & parentJointIndex of the tablet
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this.calculateTabletAttachmentProperties(hand, true, tabletProperties);
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this.cleanUpOldTablets();
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if (Settings.getValue("tabletVisibleToOthers")) {
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this.tabletEntityID = Entities.addEntity(tabletProperties, clientOnly);
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this.tabletIsOverlay = false;
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} else {
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this.tabletEntityID = Overlays.addOverlay("model", tabletProperties);
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this.tabletIsOverlay = true;
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}
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if (this.webOverlayID) {
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Overlays.deleteOverlay(this.webOverlayID);
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}
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var WEB_ENTITY_Z_OFFSET = (this.depth / 2);
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var WEB_ENTITY_Y_OFFSET = 0.004;
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this.webOverlayID = Overlays.addOverlay("web3d", {
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name: "WebTablet Web",
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url: url,
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localPosition: { x: 0, y: WEB_ENTITY_Y_OFFSET, z: -WEB_ENTITY_Z_OFFSET },
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localRotation: Quat.angleAxis(180, Y_AXIS),
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resolution: TABLET_TEXTURE_RESOLUTION,
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dpi: this.dpi,
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color: { red: 255, green: 255, blue: 255 },
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alpha: 1.0,
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parentID: this.tabletEntityID,
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parentJointIndex: -1,
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showKeyboardFocusHighlight: false,
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isAA: HMD.active
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});
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var HOME_BUTTON_Y_OFFSET = (this.height / 2) - (this.height / 20);
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this.homeButtonID = Overlays.addOverlay("sphere", {
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name: "homeButton",
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localPosition: {x: -0.001, y: -HOME_BUTTON_Y_OFFSET, z: 0.0},
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dimensions: { x: 4 * tabletScaleFactor, y: 4 * tabletScaleFactor, z: 4 * tabletScaleFactor},
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alpha: 0.0,
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visible: true,
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drawInFront: false,
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parentID: this.tabletEntityID,
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parentJointIndex: -1
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});
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this.receive = function (channel, senderID, senderUUID, localOnly) {
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if (_this.homeButtonID == senderID) {
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var tablet = Tablet.getTablet("com.highfidelity.interface.tablet.system");
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var onHomeScreen = tablet.onHomeScreen();
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if (onHomeScreen) {
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HMD.closeTablet();
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} else {
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tablet.gotoHomeScreen();
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_this.setHomeButtonTexture();
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}
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}
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};
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this.state = "idle";
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this.getRoot = function() {
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return Entities.getWebViewRoot(_this.tabletEntityID);
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};
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this.getLocation = function() {
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if (this.tabletIsOverlay) {
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var location = Overlays.getProperty(this.tabletEntityID, "localPosition");
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var orientation = Overlays.getProperty(this.tabletEntityID, "localOrientation");
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return {
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localPosition: location,
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localRotation: orientation
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};
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} else {
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return Entities.getEntityProperties(_this.tabletEntityID, ["localPosition", "localRotation"]);
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}
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};
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this.clicked = false;
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this.myOnHmdChanged = function () {
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_this.onHmdChanged();
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};
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HMD.displayModeChanged.connect(this.myOnHmdChanged);
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this.myMousePressEvent = function (event) {
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_this.mousePressEvent(event);
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};
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this.myMouseMoveEvent = function (event) {
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_this.mouseMoveEvent(event);
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};
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this.myMouseReleaseEvent = function (event) {
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_this.mouseReleaseEvent(event);
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};
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Controller.mousePressEvent.connect(this.myMousePressEvent);
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Controller.mouseMoveEvent.connect(this.myMouseMoveEvent);
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Controller.mouseReleaseEvent.connect(this.myMouseReleaseEvent);
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this.dragging = false;
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this.initialLocalIntersectionPoint = {x: 0, y: 0, z: 0};
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this.initialLocalPosition = {x: 0, y: 0, z: 0};
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this.myGeometryChanged = function (geometry) {
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_this.geometryChanged(geometry);
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};
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Window.geometryChanged.connect(this.myGeometryChanged);
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this.myCameraModeChanged = function(newMode) {
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_this.cameraModeChanged(newMode);
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};
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Camera.modeUpdated.connect(this.myCameraModeChanged);
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};
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WebTablet.prototype.setHomeButtonTexture = function() {
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Entities.editEntity(this.tabletEntityID, {textures: JSON.stringify({"tex.close": HOME_BUTTON_TEXTURE})});
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};
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WebTablet.prototype.setURL = function (url) {
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Overlays.editOverlay(this.webOverlayID, { url: url });
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};
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WebTablet.prototype.setScriptURL = function (scriptURL) {
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Overlays.editOverlay(this.webOverlayID, { scriptURL: scriptURL });
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};
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WebTablet.prototype.getOverlayObject = function () {
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return Overlays.getOverlayObject(this.webOverlayID);
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};
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WebTablet.prototype.destroy = function () {
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Overlays.deleteOverlay(this.webOverlayID);
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if (this.tabletIsOverlay) {
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Overlays.deleteOverlay(this.tabletEntityID);
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} else {
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Entities.deleteEntity(this.tabletEntityID);
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}
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Overlays.deleteOverlay(this.homeButtonID);
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HMD.displayModeChanged.disconnect(this.myOnHmdChanged);
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Controller.mousePressEvent.disconnect(this.myMousePressEvent);
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Controller.mouseMoveEvent.disconnect(this.myMouseMoveEvent);
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Controller.mouseReleaseEvent.disconnect(this.myMouseReleaseEvent);
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Window.geometryChanged.disconnect(this.myGeometryChanged);
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Camera.modeUpdated.disconnect(this.myCameraModeChanged);
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};
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WebTablet.prototype.geometryChanged = function (geometry) {
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if (!HMD.active) {
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var tabletProperties = {};
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// compute position, rotation & parentJointIndex of the tablet
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this.calculateTabletAttachmentProperties(NO_HANDS, false, tabletProperties);
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Entities.editEntity(this.tabletEntityID, tabletProperties);
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}
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};
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function gluPerspective(fovy, aspect, zNear, zFar) {
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var cotan = 1 / Math.tan(fovy / 2);
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var alpha = -(zFar + zNear) / (zFar - zNear);
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var beta = -(2 * zFar * zNear) / (zFar - zNear);
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var col0 = {x: cotan / aspect, y: 0, z: 0, w: 0};
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var col1 = {x: 0, y: cotan, z: 0, w: 0};
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var col2 = {x: 0, y: 0, z: alpha, w: -1};
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var col3 = {x: 0, y: 0, z: beta, w: 0};
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return Mat4.createFromColumns(col0, col1, col2, col3);
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}
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// calclulate the appropriate position of the tablet in world space, such that it fits in the center of the screen.
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// with a bit of padding on the top and bottom.
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// windowPos is used to position the center of the tablet at the given position.
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WebTablet.prototype.calculateWorldAttitudeRelativeToCamera = function (windowPos) {
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var DEFAULT_DESKTOP_TABLET_SCALE = 75;
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var DESKTOP_TABLET_SCALE = Settings.getValue("desktopTabletScale") || DEFAULT_DESKTOP_TABLET_SCALE;
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// clamp window pos so 2d tablet is not off-screen.
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var TABLET_TEXEL_PADDING = {x: 60, y: 90};
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var X_CLAMP = (DESKTOP_TABLET_SCALE / 100) * ((TABLET_TEXTURE_RESOLUTION.x / 2) + TABLET_TEXEL_PADDING.x);
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var Y_CLAMP = (DESKTOP_TABLET_SCALE / 100) * ((TABLET_TEXTURE_RESOLUTION.y / 2) + TABLET_TEXEL_PADDING.y);
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windowPos.x = clamp(windowPos.x, X_CLAMP, Window.innerWidth - X_CLAMP);
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windowPos.y = clamp(windowPos.y, Y_CLAMP, Window.innerHeight - Y_CLAMP);
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var fov = (Settings.getValue('fieldOfView') || DEFAULT_VERTICAL_FIELD_OF_VIEW) * (Math.PI / 180);
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var MAX_PADDING_FACTOR = 2.2;
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var PADDING_FACTOR = Math.min(Window.innerHeight / TABLET_TEXTURE_RESOLUTION.y, MAX_PADDING_FACTOR);
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var TABLET_HEIGHT = (TABLET_TEXTURE_RESOLUTION.y / this.dpi) * INCHES_TO_METERS;
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var WEB_ENTITY_Z_OFFSET = (this.depth / 2);
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// calcualte distance from camera
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var dist = (PADDING_FACTOR * TABLET_HEIGHT) / (2 * Math.tan(fov / 2) * (DESKTOP_TABLET_SCALE / 100)) - WEB_ENTITY_Z_OFFSET;
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var Z_NEAR = 0.01;
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var Z_FAR = 100.0;
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// calculate mouse position in clip space
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var alpha = -(Z_FAR + Z_NEAR) / (Z_FAR - Z_NEAR);
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var beta = -(2 * Z_FAR * Z_NEAR) / (Z_FAR - Z_NEAR);
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var clipZ = (beta / dist) - alpha;
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var clipMousePosition = {x: (2 * windowPos.x / Window.innerWidth) - 1,
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y: (2 * ((Window.innerHeight - windowPos.y) / Window.innerHeight)) - 1,
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z: clipZ};
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// calculate projection matrix
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var aspect = Window.innerWidth / Window.innerHeight;
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var projMatrix = gluPerspective(fov, aspect, Z_NEAR, Z_FAR);
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// transform mouse clip position into view coordinates.
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var viewMousePosition = Mat4.transformPoint(Mat4.inverse(projMatrix), clipMousePosition);
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// transform view mouse position into world coordinates.
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var viewToWorldMatrix = Mat4.createFromRotAndTrans(Camera.orientation, Camera.position);
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var worldMousePosition = Mat4.transformPoint(viewToWorldMatrix, viewMousePosition);
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return {
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position: worldMousePosition,
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rotation: Quat.multiply(Camera.orientation, ROT_Y_180)
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};
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};
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// compute position, rotation & parentJointIndex of the tablet
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WebTablet.prototype.calculateTabletAttachmentProperties = function (hand, useMouse, tabletProperties) {
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if (HMD.active) {
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// in HMD mode, the tablet should be relative to the sensor to world matrix.
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tabletProperties.parentJointIndex = SENSOR_TO_ROOM_MATRIX;
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// compute the appropriate position of the tablet, near the hand controller that was used to spawn it.
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var spawnInfo = calcSpawnInfo(hand, this.height);
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tabletProperties.position = spawnInfo.position;
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tabletProperties.rotation = spawnInfo.rotation;
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} else {
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// in desktop mode, the tablet should be relative to the camera
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tabletProperties.parentJointIndex = CAMERA_MATRIX;
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var windowPos;
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if (useMouse) {
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// compute the appropriate postion of the tablet such that it fits in the center of the screen nicely.
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windowPos = {x: Controller.getValue(Controller.Hardware.Keyboard.MouseX),
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y: Controller.getValue(Controller.Hardware.Keyboard.MouseY)};
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} else {
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windowPos = {x: Window.innerWidth / 2,
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y: Window.innerHeight / 2};
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}
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var attitude = this.calculateWorldAttitudeRelativeToCamera(windowPos);
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tabletProperties.position = attitude.position;
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tabletProperties.rotation = attitude.rotation;
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}
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};
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WebTablet.prototype.onHmdChanged = function () {
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if (HMD.active) {
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Controller.mousePressEvent.disconnect(this.myMousePressEvent);
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Controller.mouseMoveEvent.disconnect(this.myMouseMoveEvent);
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Controller.mouseReleaseEvent.disconnect(this.myMouseReleaseEvent);
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} else {
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Controller.mousePressEvent.connect(this.myMousePressEvent);
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Controller.mouseMoveEvent.connect(this.myMouseMoveEvent);
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Controller.mouseReleaseEvent.connect(this.myMouseReleaseEvent);
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}
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var tabletProperties = {};
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// compute position, rotation & parentJointIndex of the tablet
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this.calculateTabletAttachmentProperties(NO_HANDS, false, tabletProperties);
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Entities.editEntity(this.tabletEntityID, tabletProperties);
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// Full scene FXAA should be disabled on the overlay when the tablet in desktop mode.
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// This should make the text more readable.
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Overlays.editOverlay(this.webOverlayID, { isAA: HMD.active });
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};
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WebTablet.prototype.pickle = function () {
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return JSON.stringify({ webOverlayID: this.webOverlayID, tabletEntityID: this.tabletEntityID });
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};
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WebTablet.prototype.register = function() {
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Messages.subscribe("home");
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Messages.messageReceived.connect(this.receive);
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};
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WebTablet.prototype.cleanUpOldTabletsOnJoint = function(jointIndex) {
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var children = Entities.getChildrenIDsOfJoint(MyAvatar.sessionUUID, jointIndex);
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children = children.concat(Entities.getChildrenIDsOfJoint(AVATAR_SELF_ID, jointIndex));
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children.forEach(function(childID) {
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var props = Entities.getEntityProperties(childID, ["name"]);
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if (props.name === "WebTablet Tablet") {
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Entities.deleteEntity(childID);
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}
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});
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};
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WebTablet.prototype.cleanUpOldTablets = function() {
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this.cleanUpOldTabletsOnJoint(-1);
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this.cleanUpOldTabletsOnJoint(SENSOR_TO_ROOM_MATRIX);
|
|
this.cleanUpOldTabletsOnJoint(CAMERA_MATRIX);
|
|
this.cleanUpOldTabletsOnJoint(65529);
|
|
this.cleanUpOldTabletsOnJoint(65534);
|
|
};
|
|
|
|
WebTablet.prototype.unregister = function() {
|
|
Messages.unsubscribe("home");
|
|
Messages.messageReceived.disconnect(this.receive);
|
|
};
|
|
|
|
WebTablet.unpickle = function (string) {
|
|
if (!string) {
|
|
return;
|
|
}
|
|
var tablet = JSON.parse(string);
|
|
tablet.__proto__ = WebTablet.prototype;
|
|
return tablet;
|
|
};
|
|
|
|
WebTablet.prototype.getPosition = function () {
|
|
return Overlays.getProperty(this.webOverlayID, "position");
|
|
};
|
|
|
|
WebTablet.prototype.mousePressEvent = function (event) {
|
|
var pickRay = Camera.computePickRay(event.x, event.y);
|
|
var entityPickResults;
|
|
if (this.tabletIsOverlay) {
|
|
entityPickResults = Overlays.findRayIntersection(pickRay, true, [this.tabletEntityID]);
|
|
} else {
|
|
entityPickResults = Entities.findRayIntersection(pickRay, true, [this.tabletEntityID]);
|
|
}
|
|
if (entityPickResults.intersects && (entityPickResults.entityID === this.tabletEntityID ||
|
|
entityPickResults.overlayID === this.tabletEntityID)) {
|
|
var overlayPickResults = Overlays.findRayIntersection(pickRay, true, [this.webOverlayID, this.homeButtonID], []);
|
|
if (overlayPickResults.intersects && overlayPickResults.overlayID === this.homeButtonID) {
|
|
var tablet = Tablet.getTablet("com.highfidelity.interface.tablet.system");
|
|
var onHomeScreen = tablet.onHomeScreen();
|
|
if (onHomeScreen) {
|
|
HMD.closeTablet();
|
|
} else {
|
|
tablet.gotoHomeScreen();
|
|
this.setHomeButtonTexture();
|
|
}
|
|
} else if (!HMD.active && (!overlayPickResults.intersects || overlayPickResults.overlayID !== this.webOverlayID)) {
|
|
this.dragging = true;
|
|
var invCameraXform = new Xform(Camera.orientation, Camera.position).inv();
|
|
this.initialLocalIntersectionPoint = invCameraXform.xformPoint(entityPickResults.intersection);
|
|
if (this.tabletIsOverlay) {
|
|
this.initialLocalPosition = Overlays.getProperty(this.tabletEntityID, "localPosition");
|
|
} else {
|
|
this.initialLocalPosition = Entities.getEntityProperties(this.tabletEntityID, ["localPosition"]).localPosition;
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
WebTablet.prototype.cameraModeChanged = function (newMode) {
|
|
// reposition the tablet.
|
|
// This allows HMD.position to reflect the new camera mode.
|
|
if (HMD.active) {
|
|
var self = this;
|
|
var tabletProperties = {};
|
|
// compute position, rotation & parentJointIndex of the tablet
|
|
self.calculateTabletAttachmentProperties(NO_HANDS, false, tabletProperties);
|
|
Entities.editEntity(self.tabletEntityID, tabletProperties);
|
|
}
|
|
};
|
|
|
|
function rayIntersectPlane(planePosition, planeNormal, rayStart, rayDirection) {
|
|
var rayDirectionDotPlaneNormal = Vec3.dot(rayDirection, planeNormal);
|
|
if (rayDirectionDotPlaneNormal > 0.00001 || rayDirectionDotPlaneNormal < -0.00001) {
|
|
var rayStartDotPlaneNormal = Vec3.dot(Vec3.subtract(planePosition, rayStart), planeNormal);
|
|
var distance = rayStartDotPlaneNormal / rayDirectionDotPlaneNormal;
|
|
return {hit: true, distance: distance};
|
|
} else {
|
|
// ray is parallel to the plane
|
|
return {hit: false, distance: 0};
|
|
}
|
|
}
|
|
|
|
WebTablet.prototype.mouseMoveEvent = function (event) {
|
|
if (this.dragging) {
|
|
var pickRay = Camera.computePickRay(event.x, event.y);
|
|
|
|
// transform pickRay into camera local coordinates
|
|
var invCameraXform = new Xform(Camera.orientation, Camera.position).inv();
|
|
var localPickRay = {
|
|
origin: invCameraXform.xformPoint(pickRay.origin),
|
|
direction: invCameraXform.xformVector(pickRay.direction)
|
|
};
|
|
|
|
var NORMAL = {x: 0, y: 0, z: -1};
|
|
var result = rayIntersectPlane(this.initialLocalIntersectionPoint, NORMAL, localPickRay.origin, localPickRay.direction);
|
|
if (result.hit) {
|
|
var localIntersectionPoint = Vec3.sum(localPickRay.origin, Vec3.multiply(localPickRay.direction, result.distance));
|
|
var localOffset = Vec3.subtract(localIntersectionPoint, this.initialLocalIntersectionPoint);
|
|
var localPosition = Vec3.sum(this.initialLocalPosition, localOffset);
|
|
if (this.tabletIsOverlay) {
|
|
Overlays.editOverlay(this.tabletEntityID, {
|
|
localPosition: localPosition
|
|
});
|
|
} else {
|
|
Entities.editEntity(this.tabletEntityID, {
|
|
localPosition: localPosition
|
|
});
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
WebTablet.prototype.mouseReleaseEvent = function (event) {
|
|
this.dragging = false;
|
|
};
|