@xeokit/xeokit-sdk
Version:
3D BIM IFC Viewer SDK for AEC engineering applications. Open Source JavaScript Toolkit based on pure WebGL for top performance, real-world coordinates and full double precision
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JavaScript
import {Component} from '../Component.js';
import {math} from '../math/math.js';
/**
* @desc Meditates mouse, touch and keyboard events for various interaction controls.
*
* Ordinarily, you would only use this component as a utility to help manage input events and state for your
* own custom input handlers.
*
* * Located at {@link Scene#input}
* * Used by (at least) {@link CameraControl}
*
* ## Usage
*
* Subscribing to mouse events on the canvas:
*
* ````javascript
* import {Viewer} from "xeokit-sdk.es.js";
*
* const viewer = new Viewer({
* canvasId: "myCanvas"
* });
*
* const input = viewer.scene.input;
*
* const onMouseDown = input.on("mousedown", (canvasCoords) => {
* console.log("Mouse down at: x=" + canvasCoords[0] + ", y=" + coords[1]);
* });
*
* const onMouseUp = input.on("mouseup", (canvasCoords) => {
* console.log("Mouse up at: x=" + canvasCoords[0] + ", y=" + canvasCoords[1]);
* });
*
* const onMouseClicked = input.on("mouseclicked", (canvasCoords) => {
* console.log("Mouse clicked at: x=" + canvasCoords[0] + ", y=" + canvasCoords[1]);
* });
*
* const onDblClick = input.on("dblclick", (canvasCoords) => {
* console.log("Double-click at: x=" + canvasCoords[0] + ", y=" + canvasCoords[1]);
* });
* ````
*
* Subscribing to keyboard events on the canvas:
*
* ````javascript
* const onKeyDown = input.on("keydown", (keyCode) => {
* switch (keyCode) {
* case this.KEY_A:
* console.log("The 'A' key is down");
* break;
*
* case this.KEY_B:
* console.log("The 'B' key is down");
* break;
*
* case this.KEY_C:
* console.log("The 'C' key is down");
* break;
*
* default:
* console.log("Some other key is down");
* }
* });
*
* const onKeyUp = input.on("keyup", (keyCode) => {
* switch (keyCode) {
* case this.KEY_A:
* console.log("The 'A' key is up");
* break;
*
* case this.KEY_B:
* console.log("The 'B' key is up");
* break;
*
* case this.KEY_C:
* console.log("The 'C' key is up");
* break;
*
* default:
* console.log("Some other key is up");
* }
* });
* ````
*
* Checking if keys are down:
*
* ````javascript
* const isCtrlDown = input.ctrlDown;
* const isAltDown = input.altDown;
* const shiftDown = input.shiftDown;
* //...
*
* const isAKeyDown = input.keyDown[input.KEY_A];
* const isBKeyDown = input.keyDown[input.KEY_B];
* const isShiftKeyDown = input.keyDown[input.KEY_SHIFT];
* //...
*
* ````
* Unsubscribing from events:
*
* ````javascript
* input.off(onMouseDown);
* input.off(onMouseUp);
* //...
* ````
*
* ## Disabling all events
*
* Event handling is enabled by default.
*
* To disable all events:
*
* ````javascript
* myViewer.scene.input.setEnabled(false);
* ````
* To enable all events again:
*
* ````javascript
* myViewer.scene.input.setEnabled(true);
* ````
*
* ## Disabling keyboard input
*
* When the mouse is over the canvas, the canvas will consume keyboard events. Therefore, sometimes we need
* to disable keyboard control, so that other UI elements can get those events.
*
* To disable keyboard events:
*
* ````javascript
* myViewer.scene.input.setKeyboardEnabled(false);
* ````
*
* To enable keyboard events again:
*
* ````javascript
* myViewer.scene.input.setKeyboardEnabled(true)
* ````
*/
class Input extends Component {
/**
* @private
*/
constructor(owner, cfg = {}) {
super(owner, cfg);
/**
* Code for the BACKSPACE key.
* @property KEY_BACKSPACE
* @final
* @type {Number}
*/
this.KEY_BACKSPACE = 8;
/**
* Code for the TAB key.
* @property KEY_TAB
* @final
* @type {Number}
*/
this.KEY_TAB = 9;
/**
* Code for the ENTER key.
* @property KEY_ENTER
* @final
* @type {Number}
*/
this.KEY_ENTER = 13;
/**
* Code for the SHIFT key.
* @property KEY_SHIFT
* @final
* @type {Number}
*/
this.KEY_SHIFT = 16;
/**
* Code for the CTRL key.
* @property KEY_CTRL
* @final
* @type {Number}
*/
this.KEY_CTRL = 17;
/**
* Code for the ALT key.
* @property KEY_ALT
* @final
* @type {Number}
*/
this.KEY_ALT = 18;
/**
* Code for the PAUSE_BREAK key.
* @property KEY_PAUSE_BREAK
* @final
* @type {Number}
*/
this.KEY_PAUSE_BREAK = 19;
/**
* Code for the CAPS_LOCK key.
* @property KEY_CAPS_LOCK
* @final
* @type {Number}
*/
this.KEY_CAPS_LOCK = 20;
/**
* Code for the ESCAPE key.
* @property KEY_ESCAPE
* @final
* @type {Number}
*/
this.KEY_ESCAPE = 27;
/**
* Code for the PAGE_UP key.
* @property KEY_PAGE_UP
* @final
* @type {Number}
*/
this.KEY_PAGE_UP = 33;
/**
* Code for the PAGE_DOWN key.
* @property KEY_PAGE_DOWN
* @final
* @type {Number}
*/
this.KEY_PAGE_DOWN = 34;
/**
* Code for the END key.
* @property KEY_END
* @final
* @type {Number}
*/
this.KEY_END = 35;
/**
* Code for the HOME key.
* @property KEY_HOME
* @final
* @type {Number}
*/
this.KEY_HOME = 36;
/**
* Code for the LEFT_ARROW key.
* @property KEY_LEFT_ARROW
* @final
* @type {Number}
*/
this.KEY_LEFT_ARROW = 37;
/**
* Code for the UP_ARROW key.
* @property KEY_UP_ARROW
* @final
* @type {Number}
*/
this.KEY_UP_ARROW = 38;
/**
* Code for the RIGHT_ARROW key.
* @property KEY_RIGHT_ARROW
* @final
* @type {Number}
*/
this.KEY_RIGHT_ARROW = 39;
/**
* Code for the DOWN_ARROW key.
* @property KEY_DOWN_ARROW
* @final
* @type {Number}
*/
this.KEY_DOWN_ARROW = 40;
/**
* Code for the INSERT key.
* @property KEY_INSERT
* @final
* @type {Number}
*/
this.KEY_INSERT = 45;
/**
* Code for the DELETE key.
* @property KEY_DELETE
* @final
* @type {Number}
*/
this.KEY_DELETE = 46;
/**
* Code for the 0 key.
* @property KEY_NUM_0
* @final
* @type {Number}
*/
this.KEY_NUM_0 = 48;
/**
* Code for the 1 key.
* @property KEY_NUM_1
* @final
* @type {Number}
*/
this.KEY_NUM_1 = 49;
/**
* Code for the 2 key.
* @property KEY_NUM_2
* @final
* @type {Number}
*/
this.KEY_NUM_2 = 50;
/**
* Code for the 3 key.
* @property KEY_NUM_3
* @final
* @type {Number}
*/
this.KEY_NUM_3 = 51;
/**
* Code for the 4 key.
* @property KEY_NUM_4
* @final
* @type {Number}
*/
this.KEY_NUM_4 = 52;
/**
* Code for the 5 key.
* @property KEY_NUM_5
* @final
* @type {Number}
*/
this.KEY_NUM_5 = 53;
/**
* Code for the 6 key.
* @property KEY_NUM_6
* @final
* @type {Number}
*/
this.KEY_NUM_6 = 54;
/**
* Code for the 7 key.
* @property KEY_NUM_7
* @final
* @type {Number}
*/
this.KEY_NUM_7 = 55;
/**
* Code for the 8 key.
* @property KEY_NUM_8
* @final
* @type {Number}
*/
this.KEY_NUM_8 = 56;
/**
* Code for the 9 key.
* @property KEY_NUM_9
* @final
* @type {Number}
*/
this.KEY_NUM_9 = 57;
/**
* Code for the A key.
* @property KEY_A
* @final
* @type {Number}
*/
this.KEY_A = 65;
/**
* Code for the B key.
* @property KEY_B
* @final
* @type {Number}
*/
this.KEY_B = 66;
/**
* Code for the C key.
* @property KEY_C
* @final
* @type {Number}
*/
this.KEY_C = 67;
/**
* Code for the D key.
* @property KEY_D
* @final
* @type {Number}
*/
this.KEY_D = 68;
/**
* Code for the E key.
* @property KEY_E
* @final
* @type {Number}
*/
this.KEY_E = 69;
/**
* Code for the F key.
* @property KEY_F
* @final
* @type {Number}
*/
this.KEY_F = 70;
/**
* Code for the G key.
* @property KEY_G
* @final
* @type {Number}
*/
this.KEY_G = 71;
/**
* Code for the H key.
* @property KEY_H
* @final
* @type {Number}
*/
this.KEY_H = 72;
/**
* Code for the I key.
* @property KEY_I
* @final
* @type {Number}
*/
this.KEY_I = 73;
/**
* Code for the J key.
* @property KEY_J
* @final
* @type {Number}
*/
this.KEY_J = 74;
/**
* Code for the K key.
* @property KEY_K
* @final
* @type {Number}
*/
this.KEY_K = 75;
/**
* Code for the L key.
* @property KEY_L
* @final
* @type {Number}
*/
this.KEY_L = 76;
/**
* Code for the M key.
* @property KEY_M
* @final
* @type {Number}
*/
this.KEY_M = 77;
/**
* Code for the N key.
* @property KEY_N
* @final
* @type {Number}
*/
this.KEY_N = 78;
/**
* Code for the O key.
* @property KEY_O
* @final
* @type {Number}
*/
this.KEY_O = 79;
/**
* Code for the P key.
* @property KEY_P
* @final
* @type {Number}
*/
this.KEY_P = 80;
/**
* Code for the Q key.
* @property KEY_Q
* @final
* @type {Number}
*/
this.KEY_Q = 81;
/**
* Code for the R key.
* @property KEY_R
* @final
* @type {Number}
*/
this.KEY_R = 82;
/**
* Code for the S key.
* @property KEY_S
* @final
* @type {Number}
*/
this.KEY_S = 83;
/**
* Code for the T key.
* @property KEY_T
* @final
* @type {Number}
*/
this.KEY_T = 84;
/**
* Code for the U key.
* @property KEY_U
* @final
* @type {Number}
*/
this.KEY_U = 85;
/**
* Code for the V key.
* @property KEY_V
* @final
* @type {Number}
*/
this.KEY_V = 86;
/**
* Code for the W key.
* @property KEY_W
* @final
* @type {Number}
*/
this.KEY_W = 87;
/**
* Code for the X key.
* @property KEY_X
* @final
* @type {Number}
*/
this.KEY_X = 88;
/**
* Code for the Y key.
* @property KEY_Y
* @final
* @type {Number}
*/
this.KEY_Y = 89;
/**
* Code for the Z key.
* @property KEY_Z
* @final
* @type {Number}
*/
this.KEY_Z = 90;
/**
* Code for the LEFT_WINDOW key.
* @property KEY_LEFT_WINDOW
* @final
* @type {Number}
*/
this.KEY_LEFT_WINDOW = 91;
/**
* Code for the RIGHT_WINDOW key.
* @property KEY_RIGHT_WINDOW
* @final
* @type {Number}
*/
this.KEY_RIGHT_WINDOW = 92;
/**
* Code for the SELECT key.
* @property KEY_SELECT
* @final
* @type {Number}
*/
this.KEY_SELECT_KEY = 93;
/**
* Code for the number pad 0 key.
* @property KEY_NUMPAD_0
* @final
* @type {Number}
*/
this.KEY_NUMPAD_0 = 96;
/**
* Code for the number pad 1 key.
* @property KEY_NUMPAD_1
* @final
* @type {Number}
*/
this.KEY_NUMPAD_1 = 97;
/**
* Code for the number pad 2 key.
* @property KEY_NUMPAD 2
* @final
* @type {Number}
*/
this.KEY_NUMPAD_2 = 98;
/**
* Code for the number pad 3 key.
* @property KEY_NUMPAD_3
* @final
* @type {Number}
*/
this.KEY_NUMPAD_3 = 99;
/**
* Code for the number pad 4 key.
* @property KEY_NUMPAD_4
* @final
* @type {Number}
*/
this.KEY_NUMPAD_4 = 100;
/**
* Code for the number pad 5 key.
* @property KEY_NUMPAD_5
* @final
* @type {Number}
*/
this.KEY_NUMPAD_5 = 101;
/**
* Code for the number pad 6 key.
* @property KEY_NUMPAD_6
* @final
* @type {Number}
*/
this.KEY_NUMPAD_6 = 102;
/**
* Code for the number pad 7 key.
* @property KEY_NUMPAD_7
* @final
* @type {Number}
*/
this.KEY_NUMPAD_7 = 103;
/**
* Code for the number pad 8 key.
* @property KEY_NUMPAD_8
* @final
* @type {Number}
*/
this.KEY_NUMPAD_8 = 104;
/**
* Code for the number pad 9 key.
* @property KEY_NUMPAD_9
* @final
* @type {Number}
*/
this.KEY_NUMPAD_9 = 105;
/**
* Code for the MULTIPLY key.
* @property KEY_MULTIPLY
* @final
* @type {Number}
*/
this.KEY_MULTIPLY = 106;
/**
* Code for the ADD key.
* @property KEY_ADD
* @final
* @type {Number}
*/
this.KEY_ADD = 107;
/**
* Code for the SUBTRACT key.
* @property KEY_SUBTRACT
* @final
* @type {Number}
*/
this.KEY_SUBTRACT = 109;
/**
* Code for the DECIMAL POINT key.
* @property KEY_DECIMAL_POINT
* @final
* @type {Number}
*/
this.KEY_DECIMAL_POINT = 110;
/**
* Code for the DIVIDE key.
* @property KEY_DIVIDE
* @final
* @type {Number}
*/
this.KEY_DIVIDE = 111;
/**
* Code for the F1 key.
* @property KEY_F1
* @final
* @type {Number}
*/
this.KEY_F1 = 112;
/**
* Code for the F2 key.
* @property KEY_F2
* @final
* @type {Number}
*/
this.KEY_F2 = 113;
/**
* Code for the F3 key.
* @property KEY_F3
* @final
* @type {Number}
*/
this.KEY_F3 = 114;
/**
* Code for the F4 key.
* @property KEY_F4
* @final
* @type {Number}
*/
this.KEY_F4 = 115;
/**
* Code for the F5 key.
* @property KEY_F5
* @final
* @type {Number}
*/
this.KEY_F5 = 116;
/**
* Code for the F6 key.
* @property KEY_F6
* @final
* @type {Number}
*/
this.KEY_F6 = 117;
/**
* Code for the F7 key.
* @property KEY_F7
* @final
* @type {Number}
*/
this.KEY_F7 = 118;
/**
* Code for the F8 key.
* @property KEY_F8
* @final
* @type {Number}
*/
this.KEY_F8 = 119;
/**
* Code for the F9 key.
* @property KEY_F9
* @final
* @type {Number}
*/
this.KEY_F9 = 120;
/**
* Code for the F10 key.
* @property KEY_F10
* @final
* @type {Number}
*/
this.KEY_F10 = 121;
/**
* Code for the F11 key.
* @property KEY_F11
* @final
* @type {Number}
*/
this.KEY_F11 = 122;
/**
* Code for the F12 key.
* @property KEY_F12
* @final
* @type {Number}
*/
this.KEY_F12 = 123;
/**
* Code for the NUM_LOCK key.
* @property KEY_NUM_LOCK
* @final
* @type {Number}
*/
this.KEY_NUM_LOCK = 144;
/**
* Code for the SCROLL_LOCK key.
* @property KEY_SCROLL_LOCK
* @final
* @type {Number}
*/
this.KEY_SCROLL_LOCK = 145;
/**
* Code for the SEMI_COLON key.
* @property KEY_SEMI_COLON
* @final
* @type {Number}
*/
this.KEY_SEMI_COLON = 186;
/**
* Code for the EQUAL_SIGN key.
* @property KEY_EQUAL_SIGN
* @final
* @type {Number}
*/
this.KEY_EQUAL_SIGN = 187;
/**
* Code for the COMMA key.
* @property KEY_COMMA
* @final
* @type {Number}
*/
this.KEY_COMMA = 188;
/**
* Code for the DASH key.
* @property KEY_DASH
* @final
* @type {Number}
*/
this.KEY_DASH = 189;
/**
* Code for the PERIOD key.
* @property KEY_PERIOD
* @final
* @type {Number}
*/
this.KEY_PERIOD = 190;
/**
* Code for the FORWARD_SLASH key.
* @property KEY_FORWARD_SLASH
* @final
* @type {Number}
*/
this.KEY_FORWARD_SLASH = 191;
/**
* Code for the GRAVE_ACCENT key.
* @property KEY_GRAVE_ACCENT
* @final
* @type {Number}
*/
this.KEY_GRAVE_ACCENT = 192;
/**
* Code for the OPEN_BRACKET key.
* @property KEY_OPEN_BRACKET
* @final
* @type {Number}
*/
this.KEY_OPEN_BRACKET = 219;
/**
* Code for the BACK_SLASH key.
* @property KEY_BACK_SLASH
* @final
* @type {Number}
*/
this.KEY_BACK_SLASH = 220;
/**
* Code for the CLOSE_BRACKET key.
* @property KEY_CLOSE_BRACKET
* @final
* @type {Number}
*/
this.KEY_CLOSE_BRACKET = 221;
/**
* Code for the SINGLE_QUOTE key.
* @property KEY_SINGLE_QUOTE
* @final
* @type {Number}
*/
this.KEY_SINGLE_QUOTE = 222;
/**
* Code for the SPACE key.
* @property KEY_SPACE
* @final
* @type {Number}
*/
this.KEY_SPACE = 32;
/**
* Code for the left mouse button.
* @property MOUSE_LEFT_BUTTON
* @final
* @type {Number}
*/
this.MOUSE_LEFT_BUTTON = 260;
/**
* Code for the middle mouse button.
* @property MOUSE_MIDDLE_BUTTON
* @final
* @type {Number}
*/
this.MOUSE_MIDDLE_BUTTON = 261;
/**
* Code for the right mouse button.
* @property MOUSE_RIGHT_BUTTON
* @final
* @type {Number}
*/
this.MOUSE_RIGHT_BUTTON = 262;
/**
* The canvas element that mouse and keyboards are bound to.
*
* @final
* @type {HTMLCanvasElement}
*/
this.element = cfg.element;
/** True whenever ALT key is down.
*
* @type {boolean}
*/
this.altDown = false;
/** True whenever CTRL key is down.
*
* @type {boolean}
*/
this.ctrlDown = false;
/** True whenever left mouse button is down.
*
* @type {boolean}
*/
this.mouseDownLeft = false;
/**
* True whenever middle mouse button is down.
*
* @type {boolean}
*/
this.mouseDownMiddle = false;
/**
* True whenever the right mouse button is down.
*
* @type {boolean}
*/
this.mouseDownRight = false;
/**
* Flag for each key that's down.
*
* @type {boolean[]}
*/
this.keyDown = [];
/** True while input enabled
*
* @type {boolean}
*/
this.enabled = true;
/** True while keyboard input is enabled.
*
* Default value is ````true````.
*
* {@link CameraControl} will not respond to keyboard events while this is ````false````.
*
* @type {boolean}
*/
this.keyboardEnabled = true;
/** True while the mouse is over the canvas.
*
* @type {boolean}
*/
this.mouseover = false;
/**
* Current mouse position within the canvas.
* @type {Number[]}
*/
this.mouseCanvasPos = math.vec2();
this._keyboardEventsElement = cfg.keyboardEventsElement || document;
this._bindEvents();
}
_bindEvents() {
if (this._eventsBound) {
return;
}
this._keyboardEventsElement.addEventListener("keydown", this._keyDownListener = (e) => {
if (!this.enabled || (!this.keyboardEnabled)) {
return;
}
if (e.target.tagName !== "INPUT" && e.target.tagName !== "TEXTAREA") {
if (e.keyCode === this.KEY_CTRL) {
this.ctrlDown = true;
} else if (e.keyCode === this.KEY_ALT) {
this.altDown = true;
} else if (e.keyCode === this.KEY_SHIFT) {
this.shiftDown = true;
}
this.keyDown[e.keyCode] = true;
this.fire("keydown", e.keyCode, true);
}
}, false);
this._keyboardEventsElement.addEventListener("keyup", this._keyUpListener = (e) => {
if (!this.enabled || (!this.keyboardEnabled)) {
return;
}
if (e.target.tagName !== "INPUT" && e.target.tagName !== "TEXTAREA") {
if (e.keyCode === this.KEY_CTRL) {
this.ctrlDown = false;
} else if (e.keyCode === this.KEY_ALT) {
this.altDown = false;
} else if (e.keyCode === this.KEY_SHIFT) {
this.shiftDown = false;
}
this.keyDown[e.keyCode] = false;
this.fire("keyup", e.keyCode, true);
}
});
this.element.addEventListener("mouseenter", this._mouseEnterListener = (e) => {
if (!this.enabled) {
return;
}
this.mouseover = true;
this._getMouseCanvasPos(e);
this.fire("mouseenter", this.mouseCanvasPos, true);
});
this.element.addEventListener("mouseleave", this._mouseLeaveListener = (e) => {
if (!this.enabled) {
return;
}
this.mouseover = false;
this._getMouseCanvasPos(e);
this.fire("mouseleave", this.mouseCanvasPos, true);
});
this.element.addEventListener("mousedown", this._mouseDownListener = (e) => {
if (!this.enabled) {
return;
}
switch (e.which) {
case 1:// Left button
this.mouseDownLeft = true;
break;
case 2:// Middle/both buttons
this.mouseDownMiddle = true;
break;
case 3:// Right button
this.mouseDownRight = true;
break;
default:
break;
}
this._getMouseCanvasPos(e);
this.element.focus();
this.fire("mousedown", this.mouseCanvasPos, true);
if (this.mouseover) {
e.preventDefault();
}
});
document.addEventListener("mouseup", this._mouseUpListener = (e) => {
if (!this.enabled) {
return;
}
switch (e.which) {
case 1:// Left button
this.mouseDownLeft = false;
break;
case 2:// Middle/both buttons
this.mouseDownMiddle = false;
break;
case 3:// Right button
this.mouseDownRight = false;
break;
default:
break;
}
this.fire("mouseup", this.mouseCanvasPos, true);
// if (this.mouseover) {
// e.preventDefault();
// }
}, true);
document.addEventListener("click", this._clickListener = (e) => {
if (!this.enabled) {
return;
}
switch (e.which) {
case 1:// Left button
this.mouseDownLeft = false;
this.mouseDownRight = false;
break;
case 2:// Middle/both buttons
this.mouseDownMiddle = false;
break;
case 3:// Right button
this.mouseDownLeft = false;
this.mouseDownRight = false;
break;
default:
break;
}
this._getMouseCanvasPos(e);
this.fire("click", this.mouseCanvasPos, true);
if (this.mouseover) {
e.preventDefault();
}
});
document.addEventListener("dblclick", this._dblClickListener = (e) => {
if (!this.enabled) {
return;
}
switch (e.which) {
case 1:// Left button
this.mouseDownLeft = false;
this.mouseDownRight = false;
break;
case 2:// Middle/both buttons
this.mouseDownMiddle = false;
break;
case 3:// Right button
this.mouseDownLeft = false;
this.mouseDownRight = false;
break;
default:
break;
}
this._getMouseCanvasPos(e);
this.fire("dblclick", this.mouseCanvasPos, true);
if (this.mouseover) {
e.preventDefault();
}
});
const tickifedMouseMoveFn = this.scene.tickify(
() => this.fire("mousemove", this.mouseCanvasPos, true)
);
this.element.addEventListener("mousemove", this._mouseMoveListener = (e) => {
if (!this.enabled) {
return;
}
this._getMouseCanvasPos(e);
tickifedMouseMoveFn();
if (this.mouseover) {
e.preventDefault();
}
});
this.element.addEventListener("contextmenu", this._contextmenuListener = (e) => {
if (!this.enabled) {
return;
}
this._getMouseCanvasPos(e);
this.fire("contextmenu", this.mouseCanvasPos, true);
});
const tickifiedMouseWheelFn = this.scene.tickify(
(delta) => { this.fire("mousewheel", delta, true); }
);
this.element.addEventListener("wheel", this._mouseWheelListener = (e, d) => {
if (!this.enabled) {
return;
}
const delta = Math.max(-1, Math.min(1, -e.deltaY * 40));
tickifiedMouseWheelFn(delta);
}, {passive: true});
// mouseclicked
{
let downX;
let downY;
// Tolerance between down and up positions for a mouse click
const tolerance = 2;
this.on("mousedown", (params) => {
downX = params[0];
downY = params[1];
});
this.on("mouseup", (params) => {
if (downX >= (params[0] - tolerance) &&
downX <= (params[0] + tolerance) &&
downY >= (params[1] - tolerance) &&
downY <= (params[1] + tolerance)) {
this.fire("mouseclicked", params, true);
}
});
}
this.element.addEventListener("touchstart", this._touchstartListener = (e) => {
if (!this.enabled) {
return;
}
[...e.changedTouches].forEach(e => {
this.fire("touchstart", [ e.identifier, this._getTouchCanvasPos(e) ], true);
});
});
this.element.addEventListener("touchend", this._touchendListener = (e) => {
if (!this.enabled) {
return;
}
[...e.changedTouches].forEach(e => {
this.fire("touchend", [ e.identifier, this._getTouchCanvasPos(e) ], true);
});
});
this._eventsBound = true;
}
_unbindEvents() {
if (!this._eventsBound) {
return;
}
this._keyboardEventsElement.removeEventListener("keydown", this._keyDownListener);
this._keyboardEventsElement.removeEventListener("keyup", this._keyUpListener);
this.element.removeEventListener("mouseenter", this._mouseEnterListener);
this.element.removeEventListener("mouseleave", this._mouseLeaveListener);
this.element.removeEventListener("mousedown", this._mouseDownListener);
document.removeEventListener("mouseup", this._mouseDownListener);
document.removeEventListener("click", this._clickListener);
document.removeEventListener("dblclick", this._dblClickListener);
this.element.removeEventListener("mousemove", this._mouseMoveListener);
this.element.removeEventListener("contextmenu", this._contextmenuListener);
this.element.removeEventListener("wheel", this._mouseWheelListener);
this.element.removeEventListener("touchstart", this._touchstartListener);
this.element.removeEventListener("touchend", this._touchendListener);
if (window.OrientationChangeEvent) {
window.removeEventListener('orientationchange', this._orientationchangedListener);
}
if (window.DeviceMotionEvent) {
window.removeEventListener('devicemotion', this._deviceMotionListener);
}
if (window.DeviceOrientationEvent) {
window.removeEventListener("deviceorientation", this._deviceOrientListener);
}
this._eventsBound = false;
}
_getTouchCanvasPos(event) {
let element = event.target;
let totalOffsetLeft = 0;
let totalOffsetTop = 0;
while (element.offsetParent) {
totalOffsetLeft += element.offsetLeft;
totalOffsetTop += element.offsetTop;
element = element.offsetParent;
}
return [ event.pageX - totalOffsetLeft, event.pageY - totalOffsetTop ];
}
_getMouseCanvasPos(event) {
if (!event) {
event = window.event;
this.mouseCanvasPos[0] = event.x;
this.mouseCanvasPos[1] = event.y;
} else {
let element = event.target;
const rect = element.getBoundingClientRect();
this.mouseCanvasPos[0] = event.clientX - rect.left;
this.mouseCanvasPos[1] = event.clientY - rect.top;
}
}
/**
* Sets whether input handlers are enabled.
*
* Default value is ````true````.
*
* @param {Boolean} enable Indicates if input handlers are enabled.
*/
setEnabled(enable) {
if (this.enabled !== enable) {
this.fire("enabled", this.enabled = enable);
}
}
/**
* Gets whether input handlers are enabled.
*
* Default value is ````true````.
*
* @returns {Boolean} Indicates if input handlers are enabled.
*/
getEnabled() {
return this.enabled;
}
/**
* Sets whether or not keyboard input is enabled.
*
* Default value is ````true````.
*
* {@link CameraControl} will not respond to keyboard events while this is set ````false````.
*
* @param {Boolean} value Indicates whether keyboard input is enabled.
*/
setKeyboardEnabled(value) {
this.keyboardEnabled = value;
}
/**
* Gets whether keyboard input is enabled.
*
* Default value is ````true````.
*
* {@link CameraControl} will not respond to keyboard events while this is set ````false````.
*
* @returns {Boolean} Returns whether keyboard input is enabled.
*/
getKeyboardEnabled() {
return this.keyboardEnabled;
}
/**
* @private
*/
destroy() {
super.destroy();
this._unbindEvents();
}
}
export {Input};