diff options
Diffstat (limited to 'src/client/views/Touchable.tsx')
| -rw-r--r-- | src/client/views/Touchable.tsx | 174 |
1 files changed, 124 insertions, 50 deletions
diff --git a/src/client/views/Touchable.tsx b/src/client/views/Touchable.tsx index 2a7599fbf..13cc38589 100644 --- a/src/client/views/Touchable.tsx +++ b/src/client/views/Touchable.tsx @@ -8,8 +8,13 @@ const HOLD_DURATION = 1000; export abstract class Touchable<T = {}> extends React.Component<T> { //private holdTimer: NodeJS.Timeout | undefined; - holdTimer: NodeJS.Timeout | undefined; + private moveDisposer?: InteractionUtils.MultiTouchEventDisposer; + private endDisposer?: InteractionUtils.MultiTouchEventDisposer; + private holdMoveDisposer?: InteractionUtils.MultiTouchEventDisposer; + private holdEndDisposer?: InteractionUtils.MultiTouchEventDisposer; + + protected abstract multiTouchDisposer?: InteractionUtils.MultiTouchEventDisposer; protected _touchDrag: boolean = false; protected prevPoints: Map<number, React.Touch> = new Map<number, React.Touch>(); @@ -22,16 +27,26 @@ export abstract class Touchable<T = {}> extends React.Component<T> { * When a touch even starts, we keep track of each touch that is associated with that event */ @action - protected onTouchStart = (e: React.TouchEvent): void => { + protected onTouchStart = (e: Event, me: InteractionUtils.MultiTouchEvent<React.TouchEvent>): void => { + const actualPts: React.Touch[] = []; - for (let i = 0; i < e.targetTouches.length; i++) { - const pt: any = e.targetTouches.item(i); + const te = me.touchEvent; + // loop through all touches on screen + for (const pt of me.touches) { actualPts.push(pt); - // pen is also a touch, but with a radius of 0.5 (at least with the surface pens) - // and this seems to be the only way of differentiating pen and touch on touch events - if (pt.radiusX > 1 && pt.radiusY > 1) { + if (this.prevPoints.has(pt.identifier)) { this.prevPoints.set(pt.identifier, pt); } + // only add the ones that are targeted on "this" element, but with the identifier that the screen touch gives + for (const tPt of me.changedTouches) { + if (pt.clientX === tPt.clientX && pt.clientY === tPt.clientY) { + // pen is also a touch, but with a radius of 0.5 (at least with the surface pens) + // and this seems to be the only way of differentiating pen and touch on touch events + if (pt.radiusX > 1 && pt.radiusY > 1) { + this.prevPoints.set(pt.identifier, pt); + } + } + } } const ptsToDelete: number[] = []; @@ -41,26 +56,28 @@ export abstract class Touchable<T = {}> extends React.Component<T> { } }); + // console.log(ptsToDelete.length); ptsToDelete.forEach(pt => this.prevPoints.delete(pt)); if (this.prevPoints.size) { switch (this.prevPoints.size) { case 1: - this.handle1PointerDown(e); - e.persist(); + this.handle1PointerDown(te, me); + te.persist(); // if (this.holdTimer) { // clearTimeout(this.holdTimer) // this.holdTimer = undefined; // } - this.holdTimer = setTimeout(() => this.handle1PointerHoldStart(e), HOLD_DURATION); + // console.log(this.holdTimer); // console.log(this.holdTimer); break; case 2: - this.handle2PointersDown(e); - break; - case 5: - this.handleHandDown(e); + this.handle2PointersDown(te, me); + // e.stopPropagation(); break; + // case 5: + // this.handleHandDown(te); + // break; } } } @@ -69,28 +86,24 @@ export abstract class Touchable<T = {}> extends React.Component<T> { * Handle touch move event */ @action - protected onTouch = (e: TouchEvent): void => { - const myTouches = InteractionUtils.GetMyTargetTouches(e, this.prevPoints, true); + protected onTouch = (e: Event, me: InteractionUtils.MultiTouchEvent<TouchEvent>): void => { + const te = me.touchEvent; + const myTouches = InteractionUtils.GetMyTargetTouches(me, this.prevPoints, true); // if we're not actually moving a lot, don't consider it as dragging yet if (!InteractionUtils.IsDragging(this.prevPoints, myTouches, 5) && !this._touchDrag) return; this._touchDrag = true; - if (this.holdTimer) { - console.log("CLEAR") - clearTimeout(this.holdTimer); - // this.holdTimer = undefined; - } + // console.log(myTouches.length); switch (myTouches.length) { case 1: - this.handle1PointerMove(e); + this.handle1PointerMove(te, me); break; case 2: - this.handle2PointersMove(e); + this.handle2PointersMove(te, me); break; } - for (let i = 0; i < e.targetTouches.length; i++) { - const pt = e.targetTouches.item(i); + for (const pt of me.touches) { if (pt) { if (this.prevPoints.has(pt.identifier)) { this.prevPoints.set(pt.identifier, pt); @@ -100,23 +113,19 @@ export abstract class Touchable<T = {}> extends React.Component<T> { } @action - protected onTouchEnd = (e: TouchEvent): void => { + protected onTouchEnd = (e: Event, me: InteractionUtils.MultiTouchEvent<TouchEvent>): void => { // console.log(InteractionUtils.GetMyTargetTouches(e, this.prevPoints).length + " up"); // remove all the touches associated with the event - for (let i = 0; i < e.changedTouches.length; i++) { - const pt = e.changedTouches.item(i); + const te = me.touchEvent; + for (const pt of me.changedTouches) { if (pt) { if (this.prevPoints.has(pt.identifier)) { this.prevPoints.delete(pt.identifier); } } } - if (this.holdTimer) { - clearTimeout(this.holdTimer); - console.log("clear"); - } this._touchDrag = false; - e.stopPropagation(); + te.stopPropagation(); // if (e.targetTouches.length === 0) { @@ -126,43 +135,108 @@ export abstract class Touchable<T = {}> extends React.Component<T> { if (this.prevPoints.size === 0) { this.cleanUpInteractions(); } + e.stopPropagation(); } cleanUpInteractions = (): void => { - document.removeEventListener("touchmove", this.onTouch); - document.removeEventListener("touchend", this.onTouchEnd); + this.removeMoveListeners(); + this.removeEndListeners(); } - handle1PointerMove = (e: TouchEvent): any => { + handle1PointerMove = (e: TouchEvent, me: InteractionUtils.MultiTouchEvent<TouchEvent>): any => { e.stopPropagation(); e.preventDefault(); } - handle2PointersMove = (e: TouchEvent): any => { + handle2PointersMove = (e: TouchEvent, me: InteractionUtils.MultiTouchEvent<TouchEvent>): any => { e.stopPropagation(); e.preventDefault(); } - handle1PointerDown = (e: React.TouchEvent): any => { - document.removeEventListener("touchmove", this.onTouch); - document.addEventListener("touchmove", this.onTouch); - document.removeEventListener("touchend", this.onTouchEnd); - document.addEventListener("touchend", this.onTouchEnd); + handle1PointerDown = (e: React.TouchEvent, me: InteractionUtils.MultiTouchEvent<React.TouchEvent>): any => { + this.removeMoveListeners(); + this.addMoveListeners(); + this.removeEndListeners(); + this.addEndListeners(); } - handle2PointersDown = (e: React.TouchEvent): any => { - document.removeEventListener("touchmove", this.onTouch); - document.addEventListener("touchmove", this.onTouch); - document.removeEventListener("touchend", this.onTouchEnd); - document.addEventListener("touchend", this.onTouchEnd); + handle2PointersDown = (e: React.TouchEvent, me: InteractionUtils.MultiTouchEvent<React.TouchEvent>): any => { + this.removeMoveListeners(); + this.addMoveListeners(); + this.removeEndListeners(); + this.addEndListeners(); } - handle1PointerHoldStart = (e: React.TouchEvent): any => { + handle1PointerHoldStart = (e: Event, me: InteractionUtils.MultiTouchEvent<React.TouchEvent>): any => { e.stopPropagation(); - e.preventDefault(); - document.removeEventListener("touchmove", this.onTouch); + me.touchEvent.stopPropagation(); + this.removeMoveListeners(); + this.removeEndListeners(); + this.removeHoldMoveListeners(); + this.removeHoldEndListeners(); + this.addHoldMoveListeners(); + this.addHoldEndListeners(); + + } + + addMoveListeners = () => { + const handler = (e: Event) => this.onTouch(e, (e as CustomEvent<InteractionUtils.MultiTouchEvent<TouchEvent>>).detail); + document.addEventListener("dashOnTouchMove", handler); + this.moveDisposer = () => document.removeEventListener("dashOnTouchMove", handler); + } + + removeMoveListeners = () => { + this.moveDisposer && this.moveDisposer(); + } + + addEndListeners = () => { + const handler = (e: Event) => this.onTouchEnd(e, (e as CustomEvent<InteractionUtils.MultiTouchEvent<TouchEvent>>).detail); + document.addEventListener("dashOnTouchEnd", handler); + this.endDisposer = () => document.removeEventListener("dashOnTouchEnd", handler); + } + + removeEndListeners = () => { + this.endDisposer && this.endDisposer(); + } + + addHoldMoveListeners = () => { + const handler = (e: Event) => this.handle1PointerHoldMove(e, (e as CustomEvent<InteractionUtils.MultiTouchEvent<TouchEvent>>).detail); + document.addEventListener("dashOnTouchHoldMove", handler); + this.holdMoveDisposer = () => document.removeEventListener("dashOnTouchHoldMove", handler); + } + + addHoldEndListeners = () => { + const handler = (e: Event) => this.handle1PointerHoldEnd(e, (e as CustomEvent<InteractionUtils.MultiTouchEvent<TouchEvent>>).detail); + document.addEventListener("dashOnTouchHoldEnd", handler); + this.holdEndDisposer = () => document.removeEventListener("dashOnTouchHoldEnd", handler); } + removeHoldMoveListeners = () => { + this.holdMoveDisposer && this.holdMoveDisposer(); + } + + removeHoldEndListeners = () => { + this.holdEndDisposer && this.holdEndDisposer(); + } + + + handle1PointerHoldMove = (e: Event, me: InteractionUtils.MultiTouchEvent<TouchEvent>): void => { + e.stopPropagation(); + me.touchEvent.stopPropagation(); + } + + + handle1PointerHoldEnd = (e: Event, me: InteractionUtils.MultiTouchEvent<TouchEvent>): void => { + e.stopPropagation(); + me.touchEvent.stopPropagation(); + this.removeHoldMoveListeners(); + this.removeHoldEndListeners(); + + me.touchEvent.stopPropagation(); + me.touchEvent.preventDefault(); + } + + handleHandDown = (e: React.TouchEvent) => { // e.stopPropagation(); // e.preventDefault(); |