@esotericsoftware/spine-webgl
Version:
The official Spine Runtimes for the web.
248 lines • 38.5 kB
JavaScript
/******************************************************************************
* Spine Runtimes License Agreement
* Last updated April 5, 2025. Replaces all prior versions.
*
* Copyright (c) 2013-2025, Esoteric Software LLC
*
* Integration of the Spine Runtimes into software or otherwise creating
* derivative works of the Spine Runtimes is permitted under the terms and
* conditions of Section 2 of the Spine Editor License Agreement:
* http://esotericsoftware.com/spine-editor-license
*
* Otherwise, it is permitted to integrate the Spine Runtimes into software
* or otherwise create derivative works of the Spine Runtimes (collectively,
* "Products"), provided that each user of the Products must obtain their own
* Spine Editor license and redistribution of the Products in any form must
* include this license and copyright notice.
*
* THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
* BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
export class Input {
element;
mouseX = 0;
mouseY = 0;
buttonDown = false;
touch0 = null;
touch1 = null;
initialPinchDistance = 0;
listeners = [];
autoPreventDefault;
// this is needed because browsers sends mousedown-mousemove-mousesup after a touch sequence, unless touch end preventDefault
// but preventing default will result in preventing interaction with the page.
isTouch = false;
callbacks;
constructor(element, autoPreventDefault = true) {
this.element = element;
this.autoPreventDefault = autoPreventDefault;
this.callbacks = this.setupCallbacks(element);
}
setupCallbacks(element) {
const mouseDown = (ev) => {
if (ev instanceof MouseEvent && !this.isTouch) {
const rect = element.getBoundingClientRect();
this.mouseX = ev.clientX - rect.left;
this.mouseY = ev.clientY - rect.top;
this.buttonDown = true;
this.listeners.map((listener) => { if (listener.down)
listener.down(this.mouseX, this.mouseY, ev); });
}
};
const mouseMove = (ev) => {
if (ev instanceof MouseEvent && !this.isTouch) {
const rect = element.getBoundingClientRect();
this.mouseX = ev.clientX - rect.left;
this.mouseY = ev.clientY - rect.top;
this.listeners.map((listener) => {
if (this.buttonDown) {
if (listener.dragged)
listener.dragged(this.mouseX, this.mouseY, ev);
}
else {
if (listener.moved)
listener.moved(this.mouseX, this.mouseY, ev);
}
});
}
};
const mouseUp = (ev) => {
if (ev instanceof MouseEvent && !this.isTouch) {
const rect = element.getBoundingClientRect();
this.mouseX = ev.clientX - rect.left;
;
this.mouseY = ev.clientY - rect.top;
this.buttonDown = false;
this.listeners.map((listener) => { if (listener.up)
listener.up(this.mouseX, this.mouseY, ev); });
}
};
const mouseWheel = (ev) => {
if (this.autoPreventDefault)
ev.preventDefault();
let deltaY = ev.deltaY;
if (ev.deltaMode === WheelEvent.DOM_DELTA_LINE)
deltaY *= 8;
if (ev.deltaMode === WheelEvent.DOM_DELTA_PAGE)
deltaY *= 24;
this.listeners.map((listener) => { if (listener.wheel)
listener.wheel(deltaY, ev); });
};
const touchStart = (ev) => {
this.isTouch = true;
if (!this.touch0 || !this.touch1) {
const touches = ev.changedTouches;
const nativeTouch = touches.item(0);
if (!nativeTouch)
return;
const rect = element.getBoundingClientRect();
const x = nativeTouch.clientX - rect.left;
const y = nativeTouch.clientY - rect.top;
const touch = new Touch(nativeTouch.identifier, x, y);
this.mouseX = x;
this.mouseY = y;
this.buttonDown = true;
if (!this.touch0) {
this.touch0 = touch;
this.listeners.map((listener) => { if (listener.down)
listener.down(touch.x, touch.y, ev); });
}
else if (!this.touch1) {
this.touch1 = touch;
const dx = this.touch1.x - this.touch0.x;
const dy = this.touch1.x - this.touch0.x;
this.initialPinchDistance = Math.sqrt(dx * dx + dy * dy);
this.listeners.map((listener) => { if (listener.zoom)
listener.zoom(this.initialPinchDistance, this.initialPinchDistance, ev); });
}
}
if (this.autoPreventDefault)
ev.preventDefault();
};
const touchMove = (ev) => {
this.isTouch = true;
if (this.touch0) {
const touches = ev.changedTouches;
const rect = element.getBoundingClientRect();
for (let i = 0; i < touches.length; i++) {
const nativeTouch = touches[i];
const x = nativeTouch.clientX - rect.left;
const y = nativeTouch.clientY - rect.top;
if (this.touch0.identifier === nativeTouch.identifier) {
this.touch0.x = this.mouseX = x;
this.touch0.y = this.mouseY = y;
this.listeners.map((listener) => { if (listener.dragged)
listener.dragged(x, y, ev); });
}
if (this.touch1 && this.touch1.identifier === nativeTouch.identifier) {
this.touch1.x = this.mouseX = x;
this.touch1.y = this.mouseY = y;
}
}
if (this.touch0 && this.touch1) {
const dx = this.touch1.x - this.touch0.x;
const dy = this.touch1.x - this.touch0.x;
const distance = Math.sqrt(dx * dx + dy * dy);
this.listeners.map((listener) => { if (listener.zoom)
listener.zoom(this.initialPinchDistance, distance, ev); });
}
}
if (this.autoPreventDefault)
ev.preventDefault();
};
const touchEnd = (ev) => {
this.isTouch = true;
const touch0 = this.touch0;
if (touch0) {
const touches = ev.changedTouches;
const rect = element.getBoundingClientRect();
for (let i = 0; i < touches.length; i++) {
const nativeTouch = touches[i];
const x = nativeTouch.clientX - rect.left;
const y = nativeTouch.clientY - rect.top;
if (touch0.identifier === nativeTouch.identifier) {
this.touch0 = null;
this.mouseX = x;
this.mouseY = y;
this.listeners.map((listener) => { if (listener.up)
listener.up(x, y, ev); });
if (!this.touch1) {
this.buttonDown = false;
break;
}
else {
const touch0 = this.touch0 = this.touch1;
this.touch1 = null;
this.mouseX = touch0.x;
this.mouseY = touch0.y;
this.buttonDown = true;
this.listeners.map((listener) => { if (listener.down)
listener.down(touch0.x, touch0.y, ev); });
}
}
if (this.touch1?.identifier) {
this.touch1 = null;
}
}
}
if (this.autoPreventDefault)
ev.preventDefault();
};
element.addEventListener("mousedown", mouseDown, true);
element.addEventListener("mousemove", mouseMove, true);
element.addEventListener("mouseup", mouseUp, true);
element.addEventListener("wheel", mouseWheel, true);
element.addEventListener("touchstart", touchStart, { passive: false, capture: false });
element.addEventListener("touchmove", touchMove, { passive: false, capture: false });
element.addEventListener("touchend", touchEnd, { passive: false, capture: false });
element.addEventListener("touchcancel", touchEnd);
return {
mouseDown,
mouseMove,
mouseUp,
mouseWheel,
touchStart,
touchMove,
touchEnd,
};
}
dispose() {
const element = this.element;
element.removeEventListener("mousedown", this.callbacks.mouseDown, true);
element.removeEventListener("mousemove", this.callbacks.mouseMove, true);
element.removeEventListener("mouseup", this.callbacks.mouseUp, true);
element.removeEventListener("wheel", this.callbacks.mouseWheel, true);
element.removeEventListener("touchstart", this.callbacks.touchStart, { capture: false });
element.removeEventListener("touchmove", this.callbacks.touchMove, { capture: false });
element.removeEventListener("touchend", this.callbacks.touchEnd, { capture: false });
element.removeEventListener("touchcancel", this.callbacks.touchEnd);
this.listeners.length = 0;
}
addListener(listener) {
this.listeners.push(listener);
}
removeListener(listener) {
const idx = this.listeners.indexOf(listener);
if (idx > -1) {
this.listeners.splice(idx, 1);
}
}
}
export class Touch {
identifier;
x;
y;
constructor(identifier, x, y) {
this.identifier = identifier;
this.x = x;
this.y = y;
}
}
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* Spine Runtimes License Agreement\n * Last updated April 5, 2025. Replaces all prior versions.\n *\n * Copyright (c) 2013-2025, Esoteric Software LLC\n *\n * Integration of the Spine Runtimes into software or otherwise creating\n * derivative works of the Spine Runtimes is permitted under the terms and\n * conditions of Section 2 of the Spine Editor License Agreement:\n * http://esotericsoftware.com/spine-editor-license\n *\n * Otherwise, it is permitted to integrate the Spine Runtimes into software\n * or otherwise create derivative works of the Spine Runtimes (collectively,\n * \"Products\"), provided that each user of the Products must obtain their own\n * Spine Editor license and redistribution of the Products in any form must\n * include this license and copyright notice.\n *\n * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC \"AS IS\" AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\n * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY\n * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\n * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,\n * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND\n * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF\n * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n *****************************************************************************/\n\nimport type { Disposable } from \"./index.js\"\nexport class Input implements Disposable {\n\telement: HTMLElement;\n\tmouseX = 0;\n\tmouseY = 0;\n\tbuttonDown = false;\n\ttouch0: Touch | null = null;\n\ttouch1: Touch | null = null;\n\tinitialPinchDistance = 0;\n\tprivate listeners = [] as InputListener[];\n\tprivate autoPreventDefault: boolean;\n\n\t// this is needed because browsers sends mousedown-mousemove-mousesup after a touch sequence, unless touch end preventDefault\n\t// but preventing default will result in preventing interaction with the page.\n\tprivate isTouch = false;\n\n\tprivate callbacks: {\n\t\tmouseDown: (ev: UIEvent) => void;\n\t\tmouseMove: (ev: UIEvent) => void;\n\t\tmouseUp: (ev: UIEvent) => void;\n\t\tmouseWheel: (ev: WheelEvent) => void;\n\t\ttouchStart: (ev: TouchEvent) => void;\n\t\ttouchMove: (ev: TouchEvent) => void;\n\t\ttouchEnd: (ev: TouchEvent) => void;\n\t};\n\n\tconstructor (element: HTMLElement, autoPreventDefault = true) {\n\t\tthis.element = element;\n\t\tthis.autoPreventDefault = autoPreventDefault;\n\t\tthis.callbacks = this.setupCallbacks(element);\n\t}\n\n\tprivate setupCallbacks (element: HTMLElement) {\n\t\tconst mouseDown = (ev: UIEvent) => {\n\t\t\tif (ev instanceof MouseEvent && !this.isTouch) {\n\t\t\t\tconst rect = element.getBoundingClientRect();\n\t\t\t\tthis.mouseX = ev.clientX - rect.left;\n\t\t\t\tthis.mouseY = ev.clientY - rect.top;\n\t\t\t\tthis.buttonDown = true;\n\t\t\t\tthis.listeners.map((listener) => { if (listener.down) listener.down(this.mouseX, this.mouseY, ev); });\n\t\t\t}\n\t\t}\n\n\t\tconst mouseMove = (ev: UIEvent) => {\n\t\t\tif (ev instanceof MouseEvent && !this.isTouch) {\n\t\t\t\tconst rect = element.getBoundingClientRect();\n\t\t\t\tthis.mouseX = ev.clientX - rect.left;\n\t\t\t\tthis.mouseY = ev.clientY - rect.top;\n\n\t\t\t\tthis.listeners.map((listener) => {\n\t\t\t\t\tif (this.buttonDown) {\n\t\t\t\t\t\tif (listener.dragged) listener.dragged(this.mouseX, this.mouseY, ev);\n\t\t\t\t\t} else {\n\t\t\t\t\t\tif (listener.moved) listener.moved(this.mouseX, this.mouseY, ev);\n\t\t\t\t\t}\n\t\t\t\t});\n\t\t\t}\n\t\t};\n\n\t\tconst mouseUp = (ev: UIEvent) => {\n\t\t\tif (ev instanceof MouseEvent && !this.isTouch) {\n\t\t\t\tconst rect = element.getBoundingClientRect();\n\t\t\t\tthis.mouseX = ev.clientX - rect.left;;\n\t\t\t\tthis.mouseY = ev.clientY - rect.top;\n\t\t\t\tthis.buttonDown = false;\n\t\t\t\tthis.listeners.map((listener) => { if (listener.up) listener.up(this.mouseX, this.mouseY, ev); });\n\t\t\t}\n\t\t}\n\n\t\tconst mouseWheel = (ev: WheelEvent) => {\n\t\t\tif (this.autoPreventDefault) ev.preventDefault();\n\t\t\tlet deltaY = ev.deltaY;\n\t\t\tif (ev.deltaMode === WheelEvent.DOM_DELTA_LINE) deltaY *= 8;\n\t\t\tif (ev.deltaMode === WheelEvent.DOM_DELTA_PAGE) deltaY *= 24;\n\t\t\tthis.listeners.map((listener) => { if (listener.wheel) listener.wheel(deltaY, ev); });\n\t\t};\n\n\t\tconst touchStart = (ev: TouchEvent) => {\n\t\t\tthis.isTouch = true;\n\t\t\tif (!this.touch0 || !this.touch1) {\n\t\t\t\tconst touches = ev.changedTouches;\n\t\t\t\tconst nativeTouch = touches.item(0);\n\t\t\t\tif (!nativeTouch) return;\n\t\t\t\tconst rect = element.getBoundingClientRect();\n\t\t\t\tconst x = nativeTouch.clientX - rect.left;\n\t\t\t\tconst y = nativeTouch.clientY - rect.top;\n\t\t\t\tconst touch = new Touch(nativeTouch.identifier, x, y);\n\t\t\t\tthis.mouseX = x;\n\t\t\t\tthis.mouseY = y;\n\t\t\t\tthis.buttonDown = true;\n\n\t\t\t\tif (!this.touch0) {\n\t\t\t\t\tthis.touch0 = touch;\n\t\t\t\t\tthis.listeners.map((listener) => { if (listener.down) listener.down(touch.x, touch.y, ev) })\n\t\t\t\t} else if (!this.touch1) {\n\t\t\t\t\tthis.touch1 = touch;\n\t\t\t\t\tconst dx = this.touch1.x - this.touch0.x;\n\t\t\t\t\tconst dy = this.touch1.x - this.touch0.x;\n\t\t\t\t\tthis.initialPinchDistance = Math.sqrt(dx * dx + dy * dy);\n\t\t\t\t\tthis.listeners.map((listener) => { if (listener.zoom) listener.zoom(this.initialPinchDistance, this.initialPinchDistance, ev) });\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (this.autoPreventDefault) ev.preventDefault();\n\t\t}\n\n\t\tconst touchMove = (ev: TouchEvent) => {\n\t\t\tthis.isTouch = true;\n\t\t\tif (this.touch0) {\n\t\t\t\tconst touches = ev.changedTouches;\n\t\t\t\tconst rect = element.getBoundingClientRect();\n\t\t\t\tfor (let i = 0; i < touches.length; i++) {\n\t\t\t\t\tconst nativeTouch = touches[i];\n\t\t\t\t\tconst x = nativeTouch.clientX - rect.left;\n\t\t\t\t\tconst y = nativeTouch.clientY - rect.top;\n\n\t\t\t\t\tif (this.touch0.identifier === nativeTouch.identifier) {\n\t\t\t\t\t\tthis.touch0.x = this.mouseX = x;\n\t\t\t\t\t\tthis.touch0.y = this.mouseY = y;\n\t\t\t\t\t\tthis.listeners.map((listener) => { if (listener.dragged) listener.dragged(x, y, ev) });\n\t\t\t\t\t}\n\t\t\t\t\tif (this.touch1 && this.touch1.identifier === nativeTouch.identifier) {\n\t\t\t\t\t\tthis.touch1.x = this.mouseX = x;\n\t\t\t\t\t\tthis.touch1.y = this.mouseY = y;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tif (this.touch0 && this.touch1) {\n\t\t\t\t\tconst dx = this.touch1.x - this.touch0.x;\n\t\t\t\t\tconst dy = this.touch1.x - this.touch0.x;\n\t\t\t\t\tconst distance = Math.sqrt(dx * dx + dy * dy);\n\t\t\t\t\tthis.listeners.map((listener) => { if (listener.zoom) listener.zoom(this.initialPinchDistance, distance, ev) });\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (this.autoPreventDefault) ev.preventDefault();\n\t\t}\n\n\t\tconst touchEnd = (ev: TouchEvent) => {\n\t\t\tthis.isTouch = true;\n\t\t\tconst touch0 = this.touch0 as Touch;\n\t\t\tif (touch0) {\n\t\t\t\tconst touches = ev.changedTouches;\n\t\t\t\tconst rect = element.getBoundingClientRect();\n\n\t\t\t\tfor (let i = 0; i < touches.length; i++) {\n\t\t\t\t\tconst nativeTouch = touches[i];\n\t\t\t\t\tconst x = nativeTouch.clientX - rect.left;\n\t\t\t\t\tconst y = nativeTouch.clientY - rect.top;\n\n\t\t\t\t\tif (touch0.identifier === nativeTouch.identifier) {\n\t\t\t\t\t\tthis.touch0 = null;\n\t\t\t\t\t\tthis.mouseX = x;\n\t\t\t\t\t\tthis.mouseY = y;\n\t\t\t\t\t\tthis.listeners.map((listener) => { if (listener.up) listener.up(x, y, ev) });\n\n\t\t\t\t\t\tif (!this.touch1) {\n\t\t\t\t\t\t\tthis.buttonDown = false;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tconst touch0 = this.touch0 = this.touch1;\n\t\t\t\t\t\t\tthis.touch1 = null;\n\t\t\t\t\t\t\tthis.mouseX = touch0.x;\n\t\t\t\t\t\t\tthis.mouseY = touch0.y;\n\t\t\t\t\t\t\tthis.buttonDown = true;\n\t\t\t\t\t\t\tthis.listeners.map((listener) => { if (listener.down) listener.down(touch0.x, touch0.y, ev) });\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\tif (this.touch1?.identifier) {\n\t\t\t\t\t\tthis.touch1 = null;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (this.autoPreventDefault) ev.preventDefault();\n\t\t};\n\n\t\telement.addEventListener(\"mousedown\", mouseDown, true);\n\t\telement.addEventListener(\"mousemove\", mouseMove, true);\n\t\telement.addEventListener(\"mouseup\", mouseUp, true);\n\t\telement.addEventListener(\"wheel\", mouseWheel, true);\n\t\telement.addEventListener(\"touchstart\", touchStart, { passive: false, capture: false });\n\t\telement.addEventListener(\"touchmove\", touchMove, { passive: false, capture: false });\n\t\telement.addEventListener(\"touchend\", touchEnd, { passive: false, capture: false });\n\t\telement.addEventListener(\"touchcancel\", touchEnd);\n\n\t\treturn {\n\t\t\tmouseDown,\n\t\t\tmouseMove,\n\t\t\tmouseUp,\n\t\t\tmouseWheel,\n\t\t\ttouchStart,\n\t\t\ttouchMove,\n\t\t\ttouchEnd,\n\t\t}\n\t}\n\n\tdispose (): void {\n\t\tconst element = this.element;\n\t\telement.removeEventListener(\"mousedown\", this.callbacks.mouseDown, true);\n\t\telement.removeEventListener(\"mousemove\", this.callbacks.mouseMove, true);\n\t\telement.removeEventListener(\"mouseup\", this.callbacks.mouseUp, true);\n\t\telement.removeEventListener(\"wheel\", this.callbacks.mouseWheel, true);\n\t\telement.removeEventListener(\"touchstart\", this.callbacks.touchStart, { capture: false });\n\t\telement.removeEventListener(\"touchmove\", this.callbacks.touchMove, { capture: false });\n\t\telement.removeEventListener(\"touchend\", this.callbacks.touchEnd, { capture: false });\n\t\telement.removeEventListener(\"touchcancel\", this.callbacks.touchEnd);\n\t\tthis.listeners.length = 0;\n\t}\n\n\taddListener (listener: InputListener) {\n\t\tthis.listeners.push(listener);\n\t}\n\n\tremoveListener (listener: InputListener) {\n\t\tconst idx = this.listeners.indexOf(listener);\n\t\tif (idx > -1) {\n\t\t\tthis.listeners.splice(idx, 1);\n\t\t}\n\t}\n}\n\nexport class Touch {\n\tconstructor (public identifier: number, public x: number, public y: number) {\n\t}\n}\n\nexport interface InputListener {\n\tdown?(x: number, y: number, ev?: MouseEvent | TouchEvent): void;\n\tup?(x: number, y: number, ev?: MouseEvent | TouchEvent): void;\n\tmoved?(x: number, y: number, ev?: MouseEvent | TouchEvent): void;\n\tdragged?(x: number, y: number, ev?: MouseEvent | TouchEvent): void;\n\twheel?(delta: number, ev?: MouseEvent | TouchEvent): void;\n\tzoom?(initialDistance: number, distance: number, ev?: MouseEvent | TouchEvent): void;\n}\n"]}