src/jsMain/kotlin/de/kif/frontend/views/calendar/Calendar.kt

@@ -3,16 +3,14 @@ package de.kif.frontend.views.calendar
 import de.kif.frontend.launch
 import de.kif.frontend.repository.RoomRepository
 import de.kif.frontend.repository.ScheduleRepository
-import de.westermann.kwebview.*
-import de.westermann.robots.website.toolkit.view.TouchEvent
+import de.westermann.kwebview.View
+import de.westermann.kwebview.createHtmlView
+import de.westermann.kwebview.iterator
 import org.w3c.dom.*
-import org.w3c.dom.events.Event
-import org.w3c.dom.events.EventListener
-import org.w3c.dom.events.MouseEvent
-import org.w3c.dom.events.WheelEvent
 import kotlin.browser.document
 import kotlin.browser.window
 import kotlin.js.Date
+import kotlin.math.abs
 import kotlin.math.max
 import kotlin.math.min
 
@@ -81,41 +79,6 @@ class Calendar(calendar: HTMLElement) : View(calendar) {
         }
     }
 
-    private fun scroll(horizontal: Double, vertical: Double, event: Event? = null) {
-        var horizontalScroll = horizontal
-        var verticalScroll = vertical
-
-        if (verticalScroll > 0) {
-            val x = html.offsetTop - htmlBody.scrollTop
-            if (x > 0) {
-                val bodyScroll = min(x, verticalScroll)
-                verticalScroll -= bodyScroll
-                htmlBody.scrollBy(ScrollToOptions(0.0, bodyScroll, ScrollBehavior.INSTANT))
-            } else {
-                if (calendarTable.scrollTop + calendarTable.clientHeight + 5 >= calendarTable.scrollHeight) {
-                    htmlBody.scrollBy(ScrollToOptions(0.0, verticalScroll, ScrollBehavior.INSTANT))
-                }
-            }
-        } else if (verticalScroll < 0) {
-            val x = html.offsetTop - htmlBody.scrollTop
-            if (x < 0) {
-                val bodyScroll = max(x, verticalScroll)
-                verticalScroll -= bodyScroll
-                htmlBody.scrollBy(ScrollToOptions(0.0, bodyScroll, ScrollBehavior.INSTANT))
-            } else {
-                if (calendarTable.scrollTop == 0.0) {
-                    htmlBody.scrollBy(ScrollToOptions(0.0, verticalScroll, ScrollBehavior.INSTANT))
-                }
-            }
-        }
-
-        scrollHorizontalBy(horizontalScroll, ScrollBehavior.INSTANT)
-        scrollVerticalBy(verticalScroll, ScrollBehavior.INSTANT)
-
-        event?.preventDefault()
-        event?.stopPropagation()
-    }
-
     init {
         scroll += calendarTable
 
@@ -149,63 +112,46 @@ class Calendar(calendar: HTMLElement) : View(calendar) {
             }
         }
 
-        document.addEventListener("wheel", EventListener {
-            val event = it as? WheelEvent ?: return@EventListener
-
+        onWheel {
             autoScroll = false
 
-            val multiplier = when (event.deltaMode) {
+            val multiplier = when (it.deltaMode) {
                 1 -> 16.0
                 2 -> window.innerHeight.toDouble()
                 else -> 1.0
             }
 
-            scroll(event.deltaX * multiplier, event.deltaY * multiplier, event)
-        })
+            var verticalScroll = it.deltaY * multiplier
 
-        var mousePoint: Point? = null
+            if (verticalScroll > 0) {
+                val x = html.offsetTop - htmlBody.scrollTop
+                if (x > 0) {
+                    val bodyScroll = min(x, verticalScroll)
+                    verticalScroll -= bodyScroll
+                    htmlBody.scrollBy(ScrollToOptions(0.0, bodyScroll, ScrollBehavior.INSTANT))
+                } else {
+                    if (calendarTable.scrollTop + calendarTable.clientHeight + 5 >= calendarTable.scrollHeight) {
+                        htmlBody.scrollBy(ScrollToOptions(0.0, verticalScroll, ScrollBehavior.INSTANT))
+                    }
+                }
+            } else if (verticalScroll < 0) {
+                val x = html.offsetTop - htmlBody.scrollTop
+                if (x < 0) {
+                    val bodyScroll = max(x, verticalScroll)
+                    verticalScroll -= bodyScroll
+                    htmlBody.scrollBy(ScrollToOptions(0.0, bodyScroll, ScrollBehavior.INSTANT))
+                } else {
+                    if (calendarTable.scrollTop == 0.0) {
+                        htmlBody.scrollBy(ScrollToOptions(0.0, verticalScroll, ScrollBehavior.INSTANT))
+                    }
+                }
+            }
 
-        document.addEventListener("mousedown", EventListener {
-            val event = it as? MouseEvent ?: return@EventListener
-            mousePoint = event.toPoint()
-        })
-        document.addEventListener("mouseup", EventListener {
-            mousePoint = null
-        })
-        document.addEventListener("mousemove", EventListener {
-            val event = it as? MouseEvent ?: return@EventListener
-            autoScroll = false
+            scrollHorizontalBy(it.deltaX * multiplier, ScrollBehavior.INSTANT)
+            scrollVerticalBy(verticalScroll, ScrollBehavior.INSTANT)
 
-            val mp = mousePoint ?: return@EventListener
-            val p = event.toPoint()
-
-            scroll(mp.x - p.x, mp.y - p.y, event)
-
-            mousePoint = p
-        })
-
-        document.addEventListener("touchstart", EventListener {
-            val event = it as? TouchEvent ?: return@EventListener
-            mousePoint = event.toPoint()
-        })
-        document.addEventListener("touchend", EventListener {
-            mousePoint = null
-        })
-        document.addEventListener("touchmove", EventListener {
-            val event = it as? TouchEvent ?: return@EventListener
-            autoScroll = false
-
-            val mp = mousePoint ?: return@EventListener
-            val p = event.toPoint() ?: return@EventListener
-
-            scroll(mp.x - p.x, mp.y - p.y, event)
-
-            mousePoint = p
-        })
-
-        document.addEventListener("scroll", EventListener {
-            autoScroll = false
-        })
+            it.preventDefault()
+        }
 
         RoomRepository.onCreate {
             val cell = createHtmlView<HTMLElement>()

src/jsMain/kotlin/de/westermann/kwebview/TouchPolyfill.kt

@@ -1,39 +0,0 @@
-package de.westermann.robots.website.toolkit.view
-
-import org.w3c.dom.events.EventTarget
-import org.w3c.dom.events.UIEvent
-
-/**
- * @author lars
- */
-
-open external class TouchEvent(type: String) : UIEvent {
-    open val changedTouches: TouchList
-    open val targetTouches: TouchList
-    open val touches: TouchList
-    open val ctrlKey: Boolean
-    open val shiftKey: Boolean
-    open val altKey: Boolean
-    open val metaKey: Boolean
-    fun getModifierState(keyArg: String): Boolean
-}
-
-open external class TouchList() {
-    open val length: Int
-    open fun item(index: Int): Touch?
-}
-
-open external class Touch() {
-    open val identifier: Int
-    open val target: EventTarget
-    open val screenX: Int
-    open val screenY: Int
-    open val clientX: Int
-    open val clientY: Int
-    open val pageX: Int
-    open val pageY: Int
-}
-
-operator fun TouchList.get(index: Int) = item(index)
-fun TouchList.all(): List<Touch> = (0..length).map { item(it) }.filterNotNull()
-fun TouchList.find(identifier: Int): Touch? = all().find { it.identifier == identifier }

src/jsMain/kotlin/de/westermann/kwebview/extensions.kt

@@ -1,8 +1,6 @@
 package de.westermann.kwebview
 
 import de.westermann.kobserve.event.EventHandler
-import de.westermann.robots.website.toolkit.view.TouchEvent
-import de.westermann.robots.website.toolkit.view.get
 import org.w3c.dom.*
 import org.w3c.dom.events.Event
 import org.w3c.dom.events.EventListener
@@ -74,7 +72,6 @@ inline fun <reified T> EventHandler<T>.bind(element: HTMLElement, event: String)
 }
 
 fun MouseEvent.toPoint(): Point = Point(clientX, clientY)
-fun TouchEvent.toPoint(): Point? = touches[0]?.let { Point(it.clientX, it.clientY) }
 fun DOMRect.toDimension(): Dimension = Dimension(x, y, width, height)
 
 fun Number.format(digits: Int): String = this.asDynamic().toFixed(digits)