diff options
| author | Stanley Yip <stanley_yip@brown.edu> | 2020-01-15 13:30:08 -0500 |
|---|---|---|
| committer | Stanley Yip <stanley_yip@brown.edu> | 2020-01-15 13:30:08 -0500 |
| commit | 19be14b5807b117f477b57b9ecc7b96247bf4fef (patch) | |
| tree | de87c664ab1181426f6dbebb4c4a92b1e3e045b9 /src/client/views/Touchable.tsx | |
| parent | de0c00ff0bb1f58a0736da24acc984f5a090d009 (diff) | |
the quick brown fox jumped over the lazy dog
Diffstat (limited to 'src/client/views/Touchable.tsx')
| -rw-r--r-- | src/client/views/Touchable.tsx | 35 |
1 files changed, 15 insertions, 20 deletions
diff --git a/src/client/views/Touchable.tsx b/src/client/views/Touchable.tsx index a71015b05..7800c4019 100644 --- a/src/client/views/Touchable.tsx +++ b/src/client/views/Touchable.tsx @@ -29,15 +29,13 @@ export abstract class Touchable<T = {}> extends React.Component<T> { const actualPts: React.Touch[] = []; const te = me.touchEvent; // loop through all touches on screen - for (let i = 0; i < te.touches.length; i++) { - const pt: any = te.touches.item(i); + for (const pt of me.touches) { actualPts.push(pt); 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 (let j = 0; j < te.changedTouches.length; j++) { - const tPt = te.changedTouches.item(j); + 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 @@ -58,22 +56,21 @@ export abstract class Touchable<T = {}> extends React.Component<T> { // console.log(ptsToDelete.length); ptsToDelete.forEach(pt => this.prevPoints.delete(pt)); - // console.log(this.prevPoints.size); if (this.prevPoints.size) { switch (this.prevPoints.size) { case 1: - this.handle1PointerDown(te); + this.handle1PointerDown(te, me); te.persist(); // if (this.holdTimer) { // clearTimeout(this.holdTimer) // this.holdTimer = undefined; // } - this.holdTimer = setTimeout(() => this.handle1PointerHoldStart(te), HOLD_DURATION); + this.holdTimer = setTimeout(() => this.handle1PointerHoldStart(te, me), HOLD_DURATION); // e.stopPropagation(); // console.log(this.holdTimer); break; case 2: - this.handle2PointersDown(te); + this.handle2PointersDown(te, me); // e.stopPropagation(); break; // case 5: @@ -89,7 +86,7 @@ export abstract class Touchable<T = {}> extends React.Component<T> { @action protected onTouch = (e: Event, me: InteractionUtils.MultiTouchEvent<TouchEvent>): void => { const te = me.touchEvent; - const myTouches = InteractionUtils.GetMyTargetTouches(te, this.prevPoints, true); + 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; @@ -102,15 +99,14 @@ export abstract class Touchable<T = {}> extends React.Component<T> { // console.log(myTouches.length); switch (myTouches.length) { case 1: - this.handle1PointerMove(te); + this.handle1PointerMove(te, me); break; case 2: - this.handle2PointersMove(te); + this.handle2PointersMove(te, me); break; } - for (let i = 0; i < te.touches.length; i++) { - const pt = te.touches.item(i); + for (const pt of me.touches) { if (pt) { if (this.prevPoints.has(pt.identifier)) { this.prevPoints.set(pt.identifier, pt); @@ -124,8 +120,7 @@ export abstract class Touchable<T = {}> extends React.Component<T> { // console.log(InteractionUtils.GetMyTargetTouches(e, this.prevPoints).length + " up"); // remove all the touches associated with the event const te = me.touchEvent; - for (let i = 0; i < te.changedTouches.length; i++) { - const pt = te.changedTouches.item(i); + for (const pt of me.changedTouches) { if (pt) { if (this.prevPoints.has(pt.identifier)) { this.prevPoints.delete(pt.identifier); @@ -155,31 +150,31 @@ export abstract class Touchable<T = {}> extends React.Component<T> { 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 => { + handle1PointerDown = (e: React.TouchEvent, me: InteractionUtils.MultiTouchEvent<React.TouchEvent>): any => { this.removeMoveListeners(); this.addMoveListeners(); this.removeEndListeners(); this.addEndListeners(); } - handle2PointersDown = (e: React.TouchEvent): any => { + 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: React.TouchEvent, me: InteractionUtils.MultiTouchEvent<React.TouchEvent>): any => { e.stopPropagation(); e.preventDefault(); this.removeMoveListeners(); |
