forked from GitHub-Mirror/riotX-android
43 lines
1.4 KiB
Kotlin
43 lines
1.4 KiB
Kotlin
/*
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* Copyright 2019 New Vector Ltd
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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 im.vector.matrix.android.internal.util
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import android.os.Handler
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internal class Debouncer(private val handler: Handler) {
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private val runnables = HashMap<String, Runnable>()
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fun debounce(identifier: String, r: Runnable, millis: Long): Boolean {
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if (runnables.containsKey(identifier)) {
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// debounce
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val old = runnables[identifier]
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handler.removeCallbacks(old)
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}
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insertRunnable(identifier, r, millis)
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return true
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}
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private fun insertRunnable(identifier: String, r: Runnable, millis: Long) {
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val chained = Runnable {
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handler.post(r)
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runnables.remove(identifier)
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}
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runnables[identifier] = chained
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handler.postDelayed(chained, millis)
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}
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} |