Make swipe gestures feel more natural.
Removes opacity transition when swiping an article read/unread. Adds "resistance" to the swiped entry when the 75px threshold is reached. Fixes an issue in which a swiped article couldn't be moved <15px.
This commit is contained in:
parent
0f2b29741e
commit
ec2b911881
2 changed files with 19 additions and 8 deletions
|
@ -756,6 +756,12 @@ template {
|
|||
display: none;
|
||||
}
|
||||
|
||||
.touch-item {
|
||||
transition-property: transform;
|
||||
transition-duration: 0s;
|
||||
transition-timing-function: ease-out;
|
||||
}
|
||||
|
||||
/* Feeds list */
|
||||
article.feed-parsing-error {
|
||||
background-color: var(--feed-parsing-error-background-color);
|
||||
|
|
|
@ -7,6 +7,7 @@ class TouchHandler {
|
|||
this.touch = {
|
||||
start: { x: -1, y: -1 },
|
||||
move: { x: -1, y: -1 },
|
||||
moved: false,
|
||||
element: null
|
||||
};
|
||||
}
|
||||
|
@ -16,7 +17,7 @@ class TouchHandler {
|
|||
let horizontalDistance = Math.abs(this.touch.move.x - this.touch.start.x);
|
||||
let verticalDistance = Math.abs(this.touch.move.y - this.touch.start.y);
|
||||
|
||||
if (horizontalDistance > 30 && verticalDistance < 70) {
|
||||
if (horizontalDistance > 30 && verticalDistance < 70 || this.touch.moved) {
|
||||
return this.touch.move.x - this.touch.start.x;
|
||||
}
|
||||
}
|
||||
|
@ -41,6 +42,7 @@ class TouchHandler {
|
|||
this.touch.start.x = event.touches[0].clientX;
|
||||
this.touch.start.y = event.touches[0].clientY;
|
||||
this.touch.element = this.findElement(event.touches[0].target);
|
||||
this.touch.element.style.transitionDuration = "0s";
|
||||
}
|
||||
|
||||
onTouchMove(event) {
|
||||
|
@ -55,10 +57,14 @@ class TouchHandler {
|
|||
let absDistance = Math.abs(distance);
|
||||
|
||||
if (absDistance > 0) {
|
||||
let opacity = 1 - (absDistance > 75 ? 0.9 : absDistance / 75 * 0.9);
|
||||
let tx = distance > 75 ? 75 : (distance < -75 ? -75 : distance);
|
||||
this.touch.moved = true;
|
||||
|
||||
let tx = absDistance > 75 ? Math.pow(absDistance - 75, 0.5) + 75 : absDistance;
|
||||
|
||||
if (distance < 0) {
|
||||
tx = -tx;
|
||||
}
|
||||
|
||||
this.touch.element.style.opacity = opacity;
|
||||
this.touch.element.style.transform = "translateX(" + tx + "px)";
|
||||
|
||||
event.preventDefault();
|
||||
|
@ -75,11 +81,10 @@ class TouchHandler {
|
|||
|
||||
if (distance > 75) {
|
||||
toggleEntryStatus(this.touch.element);
|
||||
}
|
||||
}
|
||||
|
||||
// If not on the unread page, undo transform of the dragged element.
|
||||
if (document.URL.split("/").indexOf("unread") == -1 || distance <= 75) {
|
||||
this.touch.element.style.opacity = 1;
|
||||
if (this.touch.moved) {
|
||||
this.touch.element.style.transitionDuration = "0.15s";
|
||||
this.touch.element.style.transform = "none";
|
||||
}
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue