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authorGravatar Frédéric Guillot <f@miniflux.net> 2023-08-10 19:46:45 -0700
committerGravatar Frédéric Guillot <f@miniflux.net> 2023-08-10 20:29:34 -0700
commit168a870c025bfef6efdeb46e166e79a16093c157 (patch)
tree4d8ab69c7e3ef03a7ade06e7b5e5053429a64c3b /ui/static/js/touch_handler.js
parentc2349032552891745cbbc3d2a9e772845a0239f4 (diff)
downloadv2-168a870c025bfef6efdeb46e166e79a16093c157.tar.gz
v2-168a870c025bfef6efdeb46e166e79a16093c157.tar.zst
v2-168a870c025bfef6efdeb46e166e79a16093c157.zip
Move internal packages to an internal folder
For reference: https://go.dev/doc/go1.4#internalpackages
Diffstat (limited to 'ui/static/js/touch_handler.js')
-rw-r--r--ui/static/js/touch_handler.js187
1 files changed, 0 insertions, 187 deletions
diff --git a/ui/static/js/touch_handler.js b/ui/static/js/touch_handler.js
deleted file mode 100644
index 99c1d5b2..00000000
--- a/ui/static/js/touch_handler.js
+++ /dev/null
@@ -1,187 +0,0 @@
-class TouchHandler {
- constructor() {
- this.reset();
- }
-
- reset() {
- this.touch = {
- start: { x: -1, y: -1 },
- move: { x: -1, y: -1 },
- moved: false,
- time: 0,
- element: null
- };
- }
-
- calculateDistance() {
- if (this.touch.start.x >= -1 && this.touch.move.x >= -1) {
- 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 || this.touch.moved) {
- return this.touch.move.x - this.touch.start.x;
- }
- }
-
- return 0;
- }
-
- findElement(element) {
- if (element.classList.contains("entry-swipe")) {
- return element;
- }
-
- return DomHelper.findParent(element, "entry-swipe");
- }
-
- onItemTouchStart(event) {
- if (event.touches === undefined || event.touches.length !== 1) {
- return;
- }
-
- this.reset();
- 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";
- }
-
- onItemTouchMove(event) {
- if (event.touches === undefined || event.touches.length !== 1 || this.element === null) {
- return;
- }
-
- this.touch.move.x = event.touches[0].clientX;
- this.touch.move.y = event.touches[0].clientY;
-
- let distance = this.calculateDistance();
- let absDistance = Math.abs(distance);
-
- if (absDistance > 0) {
- 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.transform = "translateX(" + tx + "px)";
-
- event.preventDefault();
- }
- }
-
- onItemTouchEnd(event) {
- if (event.touches === undefined) {
- return;
- }
-
- if (this.touch.element !== null) {
- let absDistance = Math.abs(this.calculateDistance());
-
- if (absDistance > 75) {
- toggleEntryStatus(this.touch.element);
- }
-
- if (this.touch.moved) {
- this.touch.element.style.transitionDuration = "0.15s";
- this.touch.element.style.transform = "none";
- }
- }
-
- this.reset();
- }
-
- onContentTouchStart(event) {
- if (event.touches === undefined || event.touches.length !== 1) {
- return;
- }
-
- this.reset();
- this.touch.start.x = event.touches[0].clientX;
- this.touch.start.y = event.touches[0].clientY;
- this.touch.time = Date.now();
- }
-
- onContentTouchMove(event) {
- if (event.touches === undefined || event.touches.length !== 1 || this.element === null) {
- return;
- }
-
- this.touch.move.x = event.touches[0].clientX;
- this.touch.move.y = event.touches[0].clientY;
- }
-
- onContentTouchEnd(event) {
- if (event.touches === undefined) {
- return;
- }
-
- let distance = this.calculateDistance();
- let absDistance = Math.abs(distance);
- let now = Date.now();
-
- if (now - this.touch.time <= 1000 && absDistance > 75) {
- if (distance > 0) {
- goToPage("previous");
- } else {
- goToPage("next");
- }
- }
-
- this.reset();
- }
-
- onTapEnd(event) {
- if (event.touches === undefined) {
- return;
- }
-
- let now = Date.now();
-
- if (this.touch.start.x !== -1 && now - this.touch.time <= 200) {
- let innerWidthHalf = window.innerWidth / 2;
-
- if (this.touch.start.x >= innerWidthHalf && event.changedTouches[0].clientX >= innerWidthHalf) {
- goToPage("next");
- } else if (this.touch.start.x < innerWidthHalf && event.changedTouches[0].clientX < innerWidthHalf) {
- goToPage("previous");
- }
-
- this.reset();
- } else {
- this.reset();
- this.touch.start.x = event.changedTouches[0].clientX;
- this.touch.time = now;
- }
- }
-
- listen() {
- let hasPassiveOption = DomHelper.hasPassiveEventListenerOption();
-
- let elements = document.querySelectorAll(".entry-swipe");
-
- elements.forEach((element) => {
- element.addEventListener("touchstart", (e) => this.onItemTouchStart(e), hasPassiveOption ? { passive: true } : false);
- element.addEventListener("touchmove", (e) => this.onItemTouchMove(e), hasPassiveOption ? { passive: false } : false);
- element.addEventListener("touchend", (e) => this.onItemTouchEnd(e), hasPassiveOption ? { passive: true } : false);
- element.addEventListener("touchcancel", () => this.reset(), hasPassiveOption ? { passive: true } : false);
- });
-
- let element = document.querySelector(".entry-content");
-
- if (element) {
- if (element.classList.contains("gesture-nav-tap")) {
- element.addEventListener("touchend", (e) => this.onTapEnd(e), hasPassiveOption ? { passive: true } : false);
- element.addEventListener("touchmove", () => this.reset(), hasPassiveOption ? { passive: true } : false);
- element.addEventListener("touchcancel", () => this.reset(), hasPassiveOption ? { passive: true } : false);
- } else if (element.classList.contains("gesture-nav-swipe")) {
- element.addEventListener("touchstart", (e) => this.onContentTouchStart(e), hasPassiveOption ? { passive: true } : false);
- element.addEventListener("touchmove", (e) => this.onContentTouchMove(e), hasPassiveOption ? { passive: true } : false);
- element.addEventListener("touchend", (e) => this.onContentTouchEnd(e), hasPassiveOption ? { passive: true } : false);
- element.addEventListener("touchcancel", () => this.reset(), hasPassiveOption ? { passive: true } : false);
- }
- }
- }
-}