Merge pull request #65 from vadimkorr/feature/#56_Split-handlers

feature/#56 Fix touchable handlers

README.md

@@ -86,7 +86,7 @@ npm install svelte-carousel -D
 | `autoplay`                | `boolean`  | `false`         | Enables autoplay of pages                     |
 | `autoplayDuration`        | `number`   | `3000`          | Autoplay change interval (ms)                 |
 | `autoplayDirection`       | `string`   | `'next'`        | Autoplay change direction (`next` or `prev`)  |
-| `pauseOnFocus`            | `boolean`  | `false`         | Pauses autoplay on focus (for desktop - hover over the carousel to toggle the autoplay, for touchable devices - tap the carousel to toggle the autoplay) |
+| `pauseOnFocus`            | `boolean`  | `false`         | Pauses autoplay on focus (for touchable devices - tap the carousel to toggle the autoplay, for non-touchable devices - hover over the carousel to pause the autoplay) |
 | `autoplayProgressVisible` | `boolean`  | `false`         | Shows autoplay duration progress indicator    |
 | `dots`                    | `boolean`  | `true`          | Current page indicator dots                   |
 | `timingFunction`          | `string`   | `'ease-in-out'` | CSS animation timing function                 |

src/actions/focusable/event.js

@@ -1,15 +0,0 @@
-// focusin event
-export function addFocusinEventListener(source, cb) {
-  source.addEventListener('mouseenter', cb)
-}
-export function removeFocusinEventListener(source, cb) {
-  source.removeEventListener('mouseenter', cb)
-}
-
-// focusout event
-export function addFocusoutEventListener(source, cb) {
-  source.addEventListener('mouseleave', cb)
-}
-export function removeFocusoutEventListener(source, cb) {
-  source.removeEventListener('mouseleave', cb)
-}

src/actions/focusable/focusable.js

@@ -1,35 +0,0 @@
-import { createDispatcher } from '../../utils/event'
-import { get } from '../../utils/object'
-import {
-  addFocusinEventListener,
-  removeFocusinEventListener,
-  addFocusoutEventListener,
-  removeFocusoutEventListener
-} from './event'
-
-/**
- * focusable events are for mouse events only
- */
-export function focusable(node, options) {
-  // pass custom dispatch fn in order to re-translate dispatched event
-  const dispatch = get(options, 'dispatch', createDispatcher(node))
-
-  function handleFocusin() {
-    addFocusoutEventListener(node, handleFocusout)
-    dispatch('focused', { value: true })
-  }
-
-  function handleFocusout() {
-    dispatch('focused', { value: false })
-    removeFocusoutEventListener(node, handleFocusout)
-  }
-
-  addFocusinEventListener(node, handleFocusin)
-  
-  return {
-    destroy() {
-      removeFocusinEventListener(node, handleFocusin)
-      removeFocusoutEventListener(node, handleFocusout)
-    },
-  }
-}

src/actions/focusable/index.js

@@ -1 +0,0 @@
-export * from './focusable'

src/actions/hoverable/event.js

@@ -0,0 +1,15 @@
+// in event
+export function addHoverInEventListener(source, cb) {
+  source.addEventListener('mouseenter', cb)
+}
+export function removeHoverInEventListener(source, cb) {
+  source.removeEventListener('mouseenter', cb)
+}
+
+// out event
+export function addHoverOutEventListener(source, cb) {
+  source.addEventListener('mouseleave', cb)
+}
+export function removeHoverOutEventListener(source, cb) {
+  source.removeEventListener('mouseleave', cb)
+}

src/actions/hoverable/hoverable.js

@@ -0,0 +1,33 @@
+import { createDispatcher } from '../../utils/event'
+import {
+  addHoverInEventListener,
+  removeHoverInEventListener,
+  addHoverOutEventListener,
+  removeHoverOutEventListener
+} from './event'
+
+/**
+ * hoverable events are for mouse events only
+ */
+export function hoverable(node) {
+  const dispatch = createDispatcher(node)
+
+  function handleHoverIn() {
+    addHoverOutEventListener(node, handleHoverOut)
+    dispatch('hovered', { value: true })
+  }
+
+  function handleHoverOut() {
+    dispatch('hovered', { value: false })
+    removeHoverOutEventListener(node, handleHoverOut)
+  }
+
+  addHoverInEventListener(node, handleHoverIn)
+  
+  return {
+    destroy() {
+      removeHoverInEventListener(node, handleHoverIn)
+      removeHoverOutEventListener(node, handleHoverOut)
+    },
+  }
+}

src/actions/hoverable/index.js

@@ -0,0 +1 @@
+export * from './hoverable'

src/actions/pausable/index.js

@@ -1 +0,0 @@
-export * from './pausable'

src/actions/pausable/pausable.js

@@ -1,48 +0,0 @@
-import {
-  // addTouchableChangeEventListener,
-  getIsTouchable,
-  createDispatcher,
-} from '../../utils/event'
-import { focusable } from '../focusable'
-import { tappable } from '../tappable'
-
-function getHandler(isTouchable, node) {
-  const dispatch = createDispatcher(node)
-
-  if (isTouchable) {
-    return tappable(node, {
-      dispatch: (_, payload) => {
-        dispatch('pausedToggle', {
-          isTouchable: true,
-          ...payload
-        })
-      }
-    })
-  }
-  return focusable(node, {
-    dispatch: (_, payload) => {
-      dispatch('pausedToggle', {
-        isTouchable: false,
-        ...payload
-      })
-    }
-  })
-}
-
-export function pausable(node) {
-  let destroy
-
-  const handleTouchableChange = (isTouchable) => {
-    destroy && destroy() // destroy when touchable changed
-    destroy = getHandler(isTouchable, node).destroy
-  }
-  handleTouchableChange(getIsTouchable())
-  // in order to change handlers when browser was switched to mobile view and vice versa
-  // const removeTouchableChangeListener = addTouchableChangeEventListener(handleTouchableChange)
-  return {
-    destroy() {
-      // removeTouchableChangeListener()
-      destroy() // destroy here in case if touchable was not changed
-    }
-  }
-}

src/actions/swipeable/swipeable.js

@@ -70,6 +70,7 @@ export function swipeable(node, { thresholdProvider }) {
   }
 
   function handleUp(event) {
+    event.preventDefault();
     removeEndEventListener(window, handleUp)
     removeMoveEventListener(window, handleMove)
 

src/actions/tappable/tappable.js

@@ -1,5 +1,4 @@
 import { createDispatcher } from '../../utils/event'
-import { get } from '../../utils/object'
 import { getDistance } from '../../utils/math'
 import {
   addFocusinEventListener,
@@ -15,9 +14,8 @@ import {
 /**
  * tappable events are for touchable devices only
  */
-export function tappable(node, options) {
+export function tappable(node) {
-  // pass custom dispatch fn in order to re-translate dispatched event
+  const dispatch = createDispatcher(node)
-  const dispatch = get(options, 'dispatch', createDispatcher(node))
 
   let tapStartedAt = 0
   let tapStartPos = { x: 0, y: 0 }
@@ -44,6 +42,7 @@ export function tappable(node, options) {
   }
 
   function handleTapend(event) {
+    event.preventDefault();
     removeFocusoutEventListener(node, handleTapend)
 
     const touch = event.changedTouches[0]

src/components/Carousel/Carousel.svelte

@@ -6,7 +6,8 @@
   import Progress from '../Progress/Progress.svelte'
   import { NEXT, PREV } from '../../direction'
   import { swipeable } from '../../actions/swipeable'
-  import { pausable } from '../../actions/pausable'
+  import { hoverable } from '../../actions/hoverable'
+  import { tappable } from '../../actions/tappable'
   import {
     addResizeEventListener,
     removeResizeEventListener
@@ -310,13 +311,12 @@
     await offsetPage({ animated: true })
   }
 
-  function handlePausedToggle(event) {
+  function handleHovered(event) {
-    if (event.detail.isTouchable) {
-      focused = !focused
-      return
-    }
     focused = event.detail.value
   } 
+  function handleTapped(event) {
+    focused = !focused
+  } 
 </script>
 
 <div class="sc-carousel__carousel-container">
@@ -336,8 +336,11 @@
       class="sc-carousel__pages-window"
       bind:this={pageWindowElement}
 
-      use:pausable
+      use:hoverable
-      on:pausedToggle={handlePausedToggle}
+      on:hovered={handleHovered}
+
+      use:tappable
+      on:tapped={handleTapped}
     >
       <div
         class="sc-carousel__pages-container"

src/docs/Carousel.svx

@@ -102,8 +102,8 @@
 <Divider />
 
 ## Autoplay with pause on focus!anchorId:features-autoplay-pause-on-focus;
-**For desktop** - hover over the carousel to toggle the autoplay.
 **For touchable devices** - tap the carousel to toggle the autoplay.
+**For non-touchable devices** - hover over the carousel to pause the autoplay.
 
 <Carousel
   autoplay
@@ -271,7 +271,7 @@ Import component:
 | `autoplay`                | `boolean`  | `false`         | Enables auto play of pages                    |
 | `autoplayDuration`        | `number`   | `3000`          | Autoplay change interval (ms)                 |
 | `autoplayDirection`       | `string`   | `'next'`        | Autoplay change direction (`next` or `prev`)  |
-| `pauseOnFocus`            | `boolean`  | `false`         | Pauses autoplay on focus (for desktop - hover over the carousel to toggle the autoplay, for touchable devices - tap the carousel to toggle the autoplay) |
+| `pauseOnFocus`            | `boolean`  | `false`         | Pauses autoplay on focus (for touchable devices - tap the carousel to toggle the autoplay, for non-touchable devices - hover over the carousel to pause the autoplay) |
 | `autoplayProgressVisible` | `boolean`  | `false`         | Shows autoplay duration progress indicator    |
 | `dots`                    | `boolean`  | `true`          | Current page indicator dots                   |
 | `timingFunction`          | `string`   | `'ease-in-out'` | CSS animation timing function                 |

src/utils/event.js

@@ -1,5 +1,3 @@
-import { setIntervalImmediate } from './interval'
-
 // resize event
 export function addResizeEventListener(cb) {
   window.addEventListener('resize', cb)
@@ -17,29 +15,3 @@ export function createDispatcher(source) {
     )
   }
 }
-
-export function getIsTouchable() {
-  return (
-    ('ontouchstart' in window) 
-    // || // not changing value during browser view switching (mobile <-> desktop)
-    // (navigator.maxTouchPoints > 0) ||
-    // (navigator.msMaxTouchPoints > 0)
-  )
-}
-
-export function addTouchableChangeEventListener(cb) {
-  let isTouchable = null
-
-  function handleTouchableChange() {
-    const isTouchableNext = getIsTouchable();
-    if (isTouchable !== isTouchableNext) {
-      cb(isTouchableNext)
-      isTouchable = isTouchableNext
-    }
-  }
-
-  const interval = setIntervalImmediate(handleTouchableChange, 500);
-  return () => {
-    clearInterval(interval)
-  }
-}