52 lines
1.8 KiB
Kotlin
52 lines
1.8 KiB
Kotlin
/*
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* Copyright 2016 Hippo Seven
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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 com.hippo.ehviewer.util
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import android.text.Spannable
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import android.text.SpannableString
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import android.text.style.URLSpan
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import java.util.regex.Pattern
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object TextUrl {
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private val URL_PATTERN =
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Pattern.compile("(http|https)://[a-z0-9A-Z%-]+(\\.[a-z0-9A-Z%-]+)+(:\\d{1,5})?(/[a-zA-Z0-9-_~:#@!&',;=%/*.?+$\\[\\]()]+)?/?")
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fun handleTextUrl(content: CharSequence): CharSequence {
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val m = URL_PATTERN.matcher(content)
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var spannable: Spannable? = null
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while (m.find()) {
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// Ensure spannable
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if (spannable == null) {
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spannable = if (content is Spannable) {
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content
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} else {
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SpannableString(content)
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}
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}
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val start = m.start()
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val end = m.end()
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val links = spannable.getSpans(start, end, URLSpan::class.java)
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if (links.isNotEmpty()) {
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// There has been URLSpan already, leave it alone
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continue
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}
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val urlSpan = URLSpan(m.group(0))
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spannable.setSpan(urlSpan, start, end, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE)
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}
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return spannable ?: content
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}
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}
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