mirror of
https://github.com/rhunk/SnapEnhance.git
synced 2025-06-13 13:47:47 +02:00
feat(manager/scripts): pull refresh
This commit is contained in:
rhunk
@ -52,11 +52,15 @@ class RemoteScriptManager(
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if (getModuleDataFolder(name) == null) {
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context.log.warn("Module data folder not found for $name")
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}
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val content = getScriptContent(name) ?: return@forEach
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runtime.load(name, content)
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loadScript(name)
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}
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}
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fun loadScript(name: String) {
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val content = getScriptContent(name) ?: return
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runtime.load(name, content)
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}
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fun getScriptInterface(scriptName: String, interfaceName: String)
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= userInterfaces[scriptName]?.get(interfaceName)
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@ -71,7 +71,7 @@ class InterfaceManager(
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) {
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@JSFunction
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fun create(name: String, callback: Function) {
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logger.info("Creating interface for ${moduleInfo.name}")
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logger.info("Creating interface $name for ${moduleInfo.name}")
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val interfaceBuilder = InterfaceBuilder()
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callback.call(Context.getCurrentContext(), callback, callback, arrayOf(interfaceBuilder))
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registerInterface(name, interfaceBuilder)
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@ -12,11 +12,15 @@ import androidx.compose.ui.Modifier
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import androidx.compose.ui.graphics.Color
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import androidx.compose.ui.unit.dp
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import androidx.compose.ui.unit.sp
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import kotlinx.coroutines.delay
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import kotlinx.coroutines.launch
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import me.rhunk.snapenhance.scripting.impl.ui.components.Node
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import me.rhunk.snapenhance.scripting.impl.ui.components.NodeType
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import me.rhunk.snapenhance.scripting.type.ModuleInfo
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import me.rhunk.snapenhance.ui.manager.Section
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import me.rhunk.snapenhance.ui.util.pullrefresh.PullRefreshIndicator
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import me.rhunk.snapenhance.ui.util.pullrefresh.pullRefresh
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import me.rhunk.snapenhance.ui.util.pullrefresh.rememberPullRefreshState
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import kotlin.math.abs
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class ScriptsSection : Section() {
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@ -70,12 +74,14 @@ class ScriptsSection : Section() {
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checked = enabled,
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onCheckedChange = {
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context.modDatabase.setScriptEnabled(script.name, it)
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if (it) {
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context.scriptManager.loadScript(script.name)
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}
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enabled = it
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}
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)
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}
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if (openSettings) {
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ScriptSettings(script)
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}
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@ -100,7 +106,11 @@ class ScriptsSection : Section() {
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val rowColumnModifier = Modifier
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.then(if (cachedAttributes["fillMaxWidth"] as? Boolean == true) Modifier.fillMaxWidth() else Modifier)
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.then(if (cachedAttributes["fillMaxHeight"] as? Boolean == true) Modifier.fillMaxHeight() else Modifier)
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.padding((cachedAttributes["padding"]?.toString()?.toInt()?.let { abs(it) } ?: 2).dp)
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.padding(
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(cachedAttributes["padding"]
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?.toString()
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?.toInt()
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?.let { abs(it) } ?: 2).dp)
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fun runCallbackSafe(callback: () -> Unit) {
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runCatching {
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@ -219,19 +229,43 @@ class ScriptsSection : Section() {
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@Composable
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override fun Content() {
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val scriptModules = remember {
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context.modDatabase.getScripts()
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var scriptModules by remember {
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mutableStateOf(context.modDatabase.getScripts())
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}
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val coroutineScope = rememberCoroutineScope()
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var refreshing by remember {
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mutableStateOf(false)
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}
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LazyColumn(
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val pullRefreshState = rememberPullRefreshState(refreshing, onRefresh = {
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refreshing = true
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runCatching {
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context.scriptManager.sync()
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scriptModules = context.modDatabase.getScripts()
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}.onFailure {
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context.log.error("Failed to sync scripts", it)
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}
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coroutineScope.launch {
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delay(300)
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refreshing = false
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}
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})
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Box(
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modifier = Modifier.fillMaxSize()
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) {
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LazyColumn(
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modifier = Modifier
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.fillMaxSize()
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.pullRefresh(pullRefreshState),
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) {
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item {
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if (scriptModules.isEmpty()) {
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Text(
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text = "No scripts found",
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style = MaterialTheme.typography.bodySmall,
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modifier = Modifier.padding(8.dp)
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modifier = Modifier.padding(8.dp).align(Alignment.Center)
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)
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}
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}
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@ -239,5 +273,12 @@ class ScriptsSection : Section() {
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ModuleItem(scriptModules[index])
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}
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}
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PullRefreshIndicator(
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refreshing = refreshing,
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state = pullRefreshState,
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modifier = Modifier.align(Alignment.TopCenter)
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)
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}
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}
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}
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@ -0,0 +1,120 @@
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/*
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* Copyright 2022 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package me.rhunk.snapenhance.ui.util.pullrefresh
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.geometry.Offset
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import androidx.compose.ui.input.nestedscroll.NestedScrollConnection
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import androidx.compose.ui.input.nestedscroll.NestedScrollSource
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import androidx.compose.ui.input.nestedscroll.NestedScrollSource.Companion.Drag
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import androidx.compose.ui.input.nestedscroll.nestedScroll
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import androidx.compose.ui.platform.debugInspectorInfo
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import androidx.compose.ui.platform.inspectable
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import androidx.compose.ui.unit.Velocity
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/**
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* A nested scroll modifier that provides scroll events to [state].
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*
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* Note that this modifier must be added above a scrolling container, such as a lazy column, in
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* order to receive scroll events. For example:
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*
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* @sample androidx.compose.material.samples.PullRefreshSample
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*
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* @param state The [PullRefreshState] associated with this pull-to-refresh component.
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* The state will be updated by this modifier.
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* @param enabled If not enabled, all scroll delta and fling velocity will be ignored.
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*/
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// TODO(b/244423199): Move pullRefresh into its own material library similar to material-ripple.
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fun Modifier.pullRefresh(
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state: PullRefreshState,
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enabled: Boolean = true,
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) = inspectable(
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inspectorInfo = debugInspectorInfo {
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name = "pullRefresh"
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properties["state"] = state
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properties["enabled"] = enabled
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},
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) {
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Modifier.pullRefresh(state::onPull, state::onRelease, enabled)
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}
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/**
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* A nested scroll modifier that provides [onPull] and [onRelease] callbacks to aid building custom
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* pull refresh components.
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*
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* Note that this modifier must be added above a scrolling container, such as a lazy column, in
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* order to receive scroll events. For example:
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*
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* @sample androidx.compose.material.samples.CustomPullRefreshSample
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*
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* @param onPull Callback for dispatching vertical scroll delta, takes float pullDelta as argument.
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* Positive delta (pulling down) is dispatched only if the child does not consume it (i.e. pulling
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* down despite being at the top of a scrollable component), whereas negative delta (swiping up) is
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* dispatched first (in case it is needed to push the indicator back up), and then the unconsumed
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* delta is passed on to the child. The callback returns how much delta was consumed.
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* @param onRelease Callback for when drag is released, takes float flingVelocity as argument.
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* The callback returns how much velocity was consumed - in most cases this should only consume
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* velocity if pull refresh has been dragged already and the velocity is positive (the fling is
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* downwards), as an upwards fling should typically still scroll a scrollable component beneath the
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* pullRefresh. This is invoked before any remaining velocity is passed to the child.
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* @param enabled If not enabled, all scroll delta and fling velocity will be ignored and neither
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* [onPull] nor [onRelease] will be invoked.
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*/
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fun Modifier.pullRefresh(
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onPull: (pullDelta: Float) -> Float,
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onRelease: suspend (flingVelocity: Float) -> Float,
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enabled: Boolean = true,
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) = inspectable(
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inspectorInfo = debugInspectorInfo {
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name = "pullRefresh"
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properties["onPull"] = onPull
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properties["onRelease"] = onRelease
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properties["enabled"] = enabled
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},
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) {
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Modifier.nestedScroll(PullRefreshNestedScrollConnection(onPull, onRelease, enabled))
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}
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private class PullRefreshNestedScrollConnection(
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private val onPull: (pullDelta: Float) -> Float,
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private val onRelease: suspend (flingVelocity: Float) -> Float,
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private val enabled: Boolean,
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) : NestedScrollConnection {
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override fun onPreScroll(
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available: Offset,
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source: NestedScrollSource,
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): Offset = when {
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!enabled -> Offset.Zero
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source == Drag && available.y < 0 -> Offset(0f, onPull(available.y)) // Swiping up
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else -> Offset.Zero
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}
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override fun onPostScroll(
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consumed: Offset,
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available: Offset,
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source: NestedScrollSource,
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): Offset = when {
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!enabled -> Offset.Zero
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source == Drag && available.y > 0 -> Offset(0f, onPull(available.y)) // Pulling down
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else -> Offset.Zero
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}
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override suspend fun onPreFling(available: Velocity): Velocity {
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return Velocity(0f, onRelease(available.y))
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}
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}
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@ -0,0 +1,238 @@
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/*
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* Copyright 2022 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package me.rhunk.snapenhance.ui.util.pullrefresh
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import androidx.compose.animation.Crossfade
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import androidx.compose.animation.core.LinearEasing
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import androidx.compose.animation.core.animateFloatAsState
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import androidx.compose.animation.core.tween
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import androidx.compose.foundation.Canvas
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import androidx.compose.foundation.layout.Box
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import androidx.compose.foundation.layout.fillMaxSize
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import androidx.compose.foundation.layout.size
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import androidx.compose.foundation.shape.CircleShape
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import androidx.compose.material3.CircularProgressIndicator
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import androidx.compose.material3.MaterialTheme
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import androidx.compose.material3.Surface
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import androidx.compose.material3.contentColorFor
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import androidx.compose.runtime.Composable
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import androidx.compose.runtime.Immutable
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import androidx.compose.runtime.derivedStateOf
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import androidx.compose.runtime.getValue
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import androidx.compose.runtime.remember
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import androidx.compose.ui.Alignment
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.geometry.Offset
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import androidx.compose.ui.geometry.Rect
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import androidx.compose.ui.geometry.center
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import androidx.compose.ui.graphics.Color
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import androidx.compose.ui.graphics.Path
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import androidx.compose.ui.graphics.PathFillType
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import androidx.compose.ui.graphics.StrokeCap
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import androidx.compose.ui.graphics.drawscope.DrawScope
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import androidx.compose.ui.graphics.drawscope.Stroke
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import androidx.compose.ui.graphics.drawscope.rotate
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import androidx.compose.ui.semantics.semantics
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import androidx.compose.ui.unit.dp
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import kotlin.math.abs
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import kotlin.math.max
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import kotlin.math.min
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import kotlin.math.pow
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/**
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* The default indicator for Compose pull-to-refresh, based on Android's SwipeRefreshLayout.
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*
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* @sample androidx.compose.material.samples.PullRefreshSample
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*
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* @param refreshing A boolean representing whether a refresh is occurring.
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* @param state The [PullRefreshState] which controls where and how the indicator will be drawn.
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* @param modifier Modifiers for the indicator.
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* @param backgroundColor The color of the indicator's background.
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* @param contentColor The color of the indicator's arc and arrow.
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* @param scale A boolean controlling whether the indicator's size scales with pull progress or not.
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*/
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// TODO(b/244423199): Consider whether the state parameter should be replaced with lambdas to
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// enable people to use this indicator with custom pull-to-refresh components.
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@Composable
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fun PullRefreshIndicator(
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refreshing: Boolean,
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state: PullRefreshState,
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modifier: Modifier = Modifier,
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backgroundColor: Color = MaterialTheme.colorScheme.surface,
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contentColor: Color = contentColorFor(backgroundColor),
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scale: Boolean = false,
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) {
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val showElevation by remember(refreshing, state) {
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derivedStateOf { refreshing || state.position > 0.5f }
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}
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Surface(
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modifier = modifier
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.size(IndicatorSize)
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.pullRefreshIndicatorTransform(state, scale),
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shape = SpinnerShape,
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color = backgroundColor,
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shadowElevation = if (showElevation) Elevation else 0.dp,
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) {
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Crossfade(
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targetState = refreshing,
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animationSpec = tween(durationMillis = CrossfadeDurationMs),
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) { refreshing ->
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Box(
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modifier = Modifier.fillMaxSize(),
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contentAlignment = Alignment.Center,
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) {
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val spinnerSize = (ArcRadius + StrokeWidth).times(2)
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if (refreshing) {
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CircularProgressIndicator(
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color = contentColor,
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strokeWidth = StrokeWidth,
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modifier = Modifier.size(spinnerSize),
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)
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} else {
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CircularArrowIndicator(state, contentColor, Modifier.size(spinnerSize))
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}
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}
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}
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}
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}
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/**
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* Modifier.size MUST be specified.
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*/
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@Composable
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private fun CircularArrowIndicator(
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state: PullRefreshState,
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color: Color,
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modifier: Modifier,
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) {
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val path = remember { Path().apply { fillType = PathFillType.EvenOdd } }
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val targetAlpha by remember(state) {
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derivedStateOf {
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if (state.progress >= 1f) MaxAlpha else MinAlpha
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}
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}
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val alphaState = animateFloatAsState(targetValue = targetAlpha, animationSpec = AlphaTween)
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// Empty semantics for tests
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Canvas(modifier.semantics {}) {
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val values = ArrowValues(state.progress)
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val alpha = alphaState.value
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rotate(degrees = values.rotation) {
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val arcRadius = ArcRadius.toPx() + StrokeWidth.toPx() / 2f
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val arcBounds = Rect(
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size.center.x - arcRadius,
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size.center.y - arcRadius,
|
||||
size.center.x + arcRadius,
|
||||
size.center.y + arcRadius,
|
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)
|
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drawArc(
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color = color,
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||||
alpha = alpha,
|
||||
startAngle = values.startAngle,
|
||||
sweepAngle = values.endAngle - values.startAngle,
|
||||
useCenter = false,
|
||||
topLeft = arcBounds.topLeft,
|
||||
size = arcBounds.size,
|
||||
style = Stroke(
|
||||
width = StrokeWidth.toPx(),
|
||||
cap = StrokeCap.Square,
|
||||
),
|
||||
)
|
||||
drawArrow(path, arcBounds, color, alpha, values)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@Immutable
|
||||
private class ArrowValues(
|
||||
val rotation: Float,
|
||||
val startAngle: Float,
|
||||
val endAngle: Float,
|
||||
val scale: Float,
|
||||
)
|
||||
|
||||
private fun ArrowValues(progress: Float): ArrowValues {
|
||||
// Discard first 40% of progress. Scale remaining progress to full range between 0 and 100%.
|
||||
val adjustedPercent = max(min(1f, progress) - 0.4f, 0f) * 5 / 3
|
||||
// How far beyond the threshold pull has gone, as a percentage of the threshold.
|
||||
val overshootPercent = abs(progress) - 1.0f
|
||||
// Limit the overshoot to 200%. Linear between 0 and 200.
|
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val linearTension = overshootPercent.coerceIn(0f, 2f)
|
||||
// Non-linear tension. Increases with linearTension, but at a decreasing rate.
|
||||
val tensionPercent = linearTension - linearTension.pow(2) / 4
|
||||
|
||||
// Calculations based on SwipeRefreshLayout specification.
|
||||
val endTrim = adjustedPercent * MaxProgressArc
|
||||
val rotation = (-0.25f + 0.4f * adjustedPercent + tensionPercent) * 0.5f
|
||||
val startAngle = rotation * 360
|
||||
val endAngle = (rotation + endTrim) * 360
|
||||
val scale = min(1f, adjustedPercent)
|
||||
|
||||
return ArrowValues(rotation, startAngle, endAngle, scale)
|
||||
}
|
||||
|
||||
private fun DrawScope.drawArrow(
|
||||
arrow: Path,
|
||||
bounds: Rect,
|
||||
color: Color,
|
||||
alpha: Float,
|
||||
values: ArrowValues,
|
||||
) {
|
||||
arrow.reset()
|
||||
arrow.moveTo(0f, 0f) // Move to left corner
|
||||
arrow.lineTo(x = ArrowWidth.toPx() * values.scale, y = 0f) // Line to right corner
|
||||
|
||||
// Line to tip of arrow
|
||||
arrow.lineTo(
|
||||
x = ArrowWidth.toPx() * values.scale / 2,
|
||||
y = ArrowHeight.toPx() * values.scale,
|
||||
)
|
||||
|
||||
val radius = min(bounds.width, bounds.height) / 2f
|
||||
val inset = ArrowWidth.toPx() * values.scale / 2f
|
||||
arrow.translate(
|
||||
Offset(
|
||||
x = radius + bounds.center.x - inset,
|
||||
y = bounds.center.y + StrokeWidth.toPx() / 2f,
|
||||
),
|
||||
)
|
||||
arrow.close()
|
||||
rotate(degrees = values.endAngle) {
|
||||
drawPath(path = arrow, color = color, alpha = alpha)
|
||||
}
|
||||
}
|
||||
|
||||
private const val CrossfadeDurationMs = 100
|
||||
private const val MaxProgressArc = 0.8f
|
||||
|
||||
private val IndicatorSize = 40.dp
|
||||
private val SpinnerShape = CircleShape
|
||||
private val ArcRadius = 7.5.dp
|
||||
private val StrokeWidth = 2.5.dp
|
||||
private val ArrowWidth = 10.dp
|
||||
private val ArrowHeight = 5.dp
|
||||
private val Elevation = 6.dp
|
||||
|
||||
// Values taken from SwipeRefreshLayout
|
||||
private const val MinAlpha = 0.3f
|
||||
private const val MaxAlpha = 1f
|
||||
private val AlphaTween = tween<Float>(300, easing = LinearEasing)
|
||||
@ -0,0 +1,75 @@
|
||||
/*
|
||||
* Copyright 2022 The Android Open Source Project
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
package me.rhunk.snapenhance.ui.util.pullrefresh
|
||||
|
||||
import androidx.compose.animation.core.LinearOutSlowInEasing
|
||||
import androidx.compose.ui.Modifier
|
||||
import androidx.compose.ui.draw.drawWithContent
|
||||
import androidx.compose.ui.graphics.drawscope.clipRect
|
||||
import androidx.compose.ui.graphics.graphicsLayer
|
||||
import androidx.compose.ui.platform.debugInspectorInfo
|
||||
import androidx.compose.ui.platform.inspectable
|
||||
|
||||
/**
|
||||
* A modifier for translating the position and scaling the size of a pull-to-refresh indicator
|
||||
* based on the given [PullRefreshState].
|
||||
*
|
||||
* @sample androidx.compose.material.samples.PullRefreshIndicatorTransformSample
|
||||
*
|
||||
* @param state The [PullRefreshState] which determines the position of the indicator.
|
||||
* @param scale A boolean controlling whether the indicator's size scales with pull progress or not.
|
||||
*/
|
||||
// TODO: Consider whether the state parameter should be replaced with lambdas.
|
||||
fun Modifier.pullRefreshIndicatorTransform(
|
||||
state: PullRefreshState,
|
||||
scale: Boolean = false,
|
||||
) = inspectable(
|
||||
inspectorInfo = debugInspectorInfo {
|
||||
name = "pullRefreshIndicatorTransform"
|
||||
properties["state"] = state
|
||||
properties["scale"] = scale
|
||||
},
|
||||
) {
|
||||
Modifier
|
||||
// Essentially we only want to clip the at the top, so the indicator will not appear when
|
||||
// the position is 0. It is preferable to clip the indicator as opposed to the layout that
|
||||
// contains the indicator, as this would also end up clipping shadows drawn by items in a
|
||||
// list for example - so we leave the clipping to the scrolling container. We use MAX_VALUE
|
||||
// for the other dimensions to allow for more room for elevation / arbitrary indicators - we
|
||||
// only ever really want to clip at the top edge.
|
||||
.drawWithContent {
|
||||
clipRect(
|
||||
top = 0f,
|
||||
left = -Float.MAX_VALUE,
|
||||
right = Float.MAX_VALUE,
|
||||
bottom = Float.MAX_VALUE,
|
||||
) {
|
||||
this@drawWithContent.drawContent()
|
||||
}
|
||||
}
|
||||
.graphicsLayer {
|
||||
translationY = state.position - size.height
|
||||
|
||||
if (scale && !state.refreshing) {
|
||||
val scaleFraction = LinearOutSlowInEasing
|
||||
.transform(state.position / state.threshold)
|
||||
.coerceIn(0f, 1f)
|
||||
scaleX = scaleFraction
|
||||
scaleY = scaleFraction
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,219 @@
|
||||
/*
|
||||
* Copyright 2022 The Android Open Source Project
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
package me.rhunk.snapenhance.ui.util.pullrefresh
|
||||
|
||||
import androidx.compose.animation.core.animate
|
||||
import androidx.compose.foundation.MutatorMutex
|
||||
import androidx.compose.runtime.*
|
||||
import androidx.compose.ui.platform.LocalDensity
|
||||
import androidx.compose.ui.unit.Dp
|
||||
import androidx.compose.ui.unit.dp
|
||||
import kotlinx.coroutines.CoroutineScope
|
||||
import kotlinx.coroutines.launch
|
||||
import kotlin.math.abs
|
||||
import kotlin.math.pow
|
||||
|
||||
/**
|
||||
* Creates a [PullRefreshState] that is remembered across compositions.
|
||||
*
|
||||
* Changes to [refreshing] will result in [PullRefreshState] being updated.
|
||||
*
|
||||
* @sample androidx.compose.material.samples.PullRefreshSample
|
||||
*
|
||||
* @param refreshing A boolean representing whether a refresh is currently occurring.
|
||||
* @param onRefresh The function to be called to trigger a refresh.
|
||||
* @param refreshThreshold The threshold below which, if a release
|
||||
* occurs, [onRefresh] will be called.
|
||||
* @param refreshingOffset The offset at which the indicator will be drawn while refreshing. This
|
||||
* offset corresponds to the position of the bottom of the indicator.
|
||||
*/
|
||||
@Composable
|
||||
fun rememberPullRefreshState(
|
||||
refreshing: Boolean,
|
||||
onRefresh: () -> Unit,
|
||||
refreshThreshold: Dp = PullRefreshDefaults.RefreshThreshold,
|
||||
refreshingOffset: Dp = PullRefreshDefaults.RefreshingOffset,
|
||||
): PullRefreshState {
|
||||
require(refreshThreshold > 0.dp) { "The refresh trigger must be greater than zero!" }
|
||||
|
||||
val scope = rememberCoroutineScope()
|
||||
val onRefreshState = rememberUpdatedState(onRefresh)
|
||||
val thresholdPx: Float
|
||||
val refreshingOffsetPx: Float
|
||||
|
||||
with(LocalDensity.current) {
|
||||
thresholdPx = refreshThreshold.toPx()
|
||||
refreshingOffsetPx = refreshingOffset.toPx()
|
||||
}
|
||||
|
||||
val state = remember(scope) {
|
||||
PullRefreshState(scope, onRefreshState, refreshingOffsetPx, thresholdPx)
|
||||
}
|
||||
|
||||
SideEffect {
|
||||
state.setRefreshing(refreshing)
|
||||
state.setThreshold(thresholdPx)
|
||||
state.setRefreshingOffset(refreshingOffsetPx)
|
||||
}
|
||||
|
||||
return state
|
||||
}
|
||||
|
||||
/**
|
||||
* A state object that can be used in conjunction with [pullRefresh] to add pull-to-refresh
|
||||
* behaviour to a scroll component. Based on Android's SwipeRefreshLayout.
|
||||
*
|
||||
* Provides [progress], a float representing how far the user has pulled as a percentage of the
|
||||
* refreshThreshold. Values of one or less indicate that the user has not yet pulled past the
|
||||
* threshold. Values greater than one indicate how far past the threshold the user has pulled.
|
||||
*
|
||||
* Can be used in conjunction with [pullRefreshIndicatorTransform] to implement Android-like
|
||||
* pull-to-refresh behaviour with a custom indicator.
|
||||
*
|
||||
* Should be created using [rememberPullRefreshState].
|
||||
*/
|
||||
class PullRefreshState internal constructor(
|
||||
private val animationScope: CoroutineScope,
|
||||
private val onRefreshState: State<() -> Unit>,
|
||||
refreshingOffset: Float,
|
||||
threshold: Float,
|
||||
) {
|
||||
/**
|
||||
* A float representing how far the user has pulled as a percentage of the refreshThreshold.
|
||||
*
|
||||
* If the component has not been pulled at all, progress is zero. If the pull has reached
|
||||
* halfway to the threshold, progress is 0.5f. A value greater than 1 indicates that pull has
|
||||
* gone beyond the refreshThreshold - e.g. a value of 2f indicates that the user has pulled to
|
||||
* two times the refreshThreshold.
|
||||
*/
|
||||
val progress get() = adjustedDistancePulled / threshold
|
||||
|
||||
internal val refreshing get() = _refreshing
|
||||
internal val position get() = _position
|
||||
internal val threshold get() = _threshold
|
||||
|
||||
private val adjustedDistancePulled by derivedStateOf { distancePulled * DragMultiplier }
|
||||
|
||||
private var _refreshing by mutableStateOf(false)
|
||||
private var _position by mutableFloatStateOf(0f)
|
||||
private var distancePulled by mutableFloatStateOf(0f)
|
||||
private var _threshold by mutableFloatStateOf(threshold)
|
||||
private var _refreshingOffset by mutableFloatStateOf(refreshingOffset)
|
||||
|
||||
internal fun onPull(pullDelta: Float): Float {
|
||||
if (_refreshing) return 0f // Already refreshing, do nothing.
|
||||
|
||||
val newOffset = (distancePulled + pullDelta).coerceAtLeast(0f)
|
||||
val dragConsumed = newOffset - distancePulled
|
||||
distancePulled = newOffset
|
||||
_position = calculateIndicatorPosition()
|
||||
return dragConsumed
|
||||
}
|
||||
|
||||
internal fun onRelease(velocity: Float): Float {
|
||||
if (refreshing) return 0f // Already refreshing, do nothing
|
||||
|
||||
if (adjustedDistancePulled > threshold) {
|
||||
onRefreshState.value()
|
||||
}
|
||||
animateIndicatorTo(0f)
|
||||
val consumed = when {
|
||||
// We are flinging without having dragged the pull refresh (for example a fling inside
|
||||
// a list) - don't consume
|
||||
distancePulled == 0f -> 0f
|
||||
// If the velocity is negative, the fling is upwards, and we don't want to prevent the
|
||||
// the list from scrolling
|
||||
velocity < 0f -> 0f
|
||||
// We are showing the indicator, and the fling is downwards - consume everything
|
||||
else -> velocity
|
||||
}
|
||||
distancePulled = 0f
|
||||
return consumed
|
||||
}
|
||||
|
||||
internal fun setRefreshing(refreshing: Boolean) {
|
||||
if (_refreshing != refreshing) {
|
||||
_refreshing = refreshing
|
||||
distancePulled = 0f
|
||||
animateIndicatorTo(if (refreshing) _refreshingOffset else 0f)
|
||||
}
|
||||
}
|
||||
|
||||
internal fun setThreshold(threshold: Float) {
|
||||
_threshold = threshold
|
||||
}
|
||||
|
||||
internal fun setRefreshingOffset(refreshingOffset: Float) {
|
||||
if (_refreshingOffset != refreshingOffset) {
|
||||
_refreshingOffset = refreshingOffset
|
||||
if (refreshing) animateIndicatorTo(refreshingOffset)
|
||||
}
|
||||
}
|
||||
|
||||
// Make sure to cancel any existing animations when we launch a new one. We use this instead of
|
||||
// Animatable as calling snapTo() on every drag delta has a one frame delay, and some extra
|
||||
// overhead of running through the animation pipeline instead of directly mutating the state.
|
||||
private val mutatorMutex = MutatorMutex()
|
||||
|
||||
private fun animateIndicatorTo(offset: Float) = animationScope.launch {
|
||||
mutatorMutex.mutate {
|
||||
animate(initialValue = _position, targetValue = offset) { value, _ ->
|
||||
_position = value
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private fun calculateIndicatorPosition(): Float = when {
|
||||
// If drag hasn't gone past the threshold, the position is the adjustedDistancePulled.
|
||||
adjustedDistancePulled <= threshold -> adjustedDistancePulled
|
||||
else -> {
|
||||
// How far beyond the threshold pull has gone, as a percentage of the threshold.
|
||||
val overshootPercent = abs(progress) - 1.0f
|
||||
// Limit the overshoot to 200%. Linear between 0 and 200.
|
||||
val linearTension = overshootPercent.coerceIn(0f, 2f)
|
||||
// Non-linear tension. Increases with linearTension, but at a decreasing rate.
|
||||
val tensionPercent = linearTension - linearTension.pow(2) / 4
|
||||
// The additional offset beyond the threshold.
|
||||
val extraOffset = threshold * tensionPercent
|
||||
threshold + extraOffset
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Default parameter values for [rememberPullRefreshState].
|
||||
*/
|
||||
object PullRefreshDefaults {
|
||||
/**
|
||||
* If the indicator is below this threshold offset when it is released, a refresh
|
||||
* will be triggered.
|
||||
*/
|
||||
val RefreshThreshold = 80.dp
|
||||
|
||||
/**
|
||||
* The offset at which the indicator should be rendered whilst a refresh is occurring.
|
||||
*/
|
||||
val RefreshingOffset = 56.dp
|
||||
}
|
||||
|
||||
/**
|
||||
* The distance pulled is multiplied by this value to give us the adjusted distance pulled, which
|
||||
* is used in calculating the indicator position (when the adjusted distance pulled is less than
|
||||
* the refresh threshold, it is the indicator position, otherwise the indicator position is
|
||||
* derived from the progress).
|
||||
*/
|
||||
private const val DragMultiplier = 0.5f
|
||||
@ -9,8 +9,8 @@ import me.rhunk.snapenhance.features.Feature
|
||||
import me.rhunk.snapenhance.features.FeatureLoadParams
|
||||
|
||||
class UnlimitedSnapViewTime :
|
||||
Feature("UnlimitedSnapViewTime", loadParams = FeatureLoadParams.ACTIVITY_CREATE_ASYNC) {
|
||||
override fun asyncOnActivityCreate() {
|
||||
Feature("UnlimitedSnapViewTime", loadParams = FeatureLoadParams.ACTIVITY_CREATE_SYNC) {
|
||||
override fun onActivityCreate() {
|
||||
val state by context.config.messaging.unlimitedSnapViewTime
|
||||
|
||||
context.event.subscribe(BuildMessageEvent::class, { state }, priority = 101) { event ->
|
||||
|
||||
Reference in New Issue
Block a user