diff options
Diffstat (limited to 'src/main/java/de/pixart/messenger/ui/util')
-rw-r--r-- | src/main/java/de/pixart/messenger/ui/util/MyLinkify.java | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/src/main/java/de/pixart/messenger/ui/util/MyLinkify.java b/src/main/java/de/pixart/messenger/ui/util/MyLinkify.java new file mode 100644 index 000000000..2817c55c7 --- /dev/null +++ b/src/main/java/de/pixart/messenger/ui/util/MyLinkify.java @@ -0,0 +1,106 @@ +/* + * Copyright (c) 2018, Daniel Gultsch All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation and/or + * other materials provided with the distribution. + * + * 3. Neither the name of the copyright holder nor the names of its contributors + * may be used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +package de.pixart.messenger.ui.util; + +import android.os.Build; +import android.text.Editable; +import android.text.util.Linkify; + +import java.util.Locale; + +import de.pixart.messenger.ui.text.FixedURLSpan; +import de.pixart.messenger.utils.GeoHelper; +import de.pixart.messenger.utils.Patterns; +import de.pixart.messenger.utils.XmppUri; + +public class MyLinkify { + + private static final Linkify.TransformFilter WEBURL_TRANSFORM_FILTER = (matcher, url) -> { + if (url == null) { + return null; + } + final String lcUrl = url.toLowerCase(Locale.US); + if (lcUrl.startsWith("http://") || lcUrl.startsWith("https://")) { + return removeTrailingBracket(url); + } else { + return "http://" + removeTrailingBracket(url); + } + }; + + private static String removeTrailingBracket(final String url) { + int numOpenBrackets = 0; + for (char c : url.toCharArray()) { + if (c == '(') { + ++numOpenBrackets; + } else if (c == ')') { + --numOpenBrackets; + } + } + if (numOpenBrackets != 0 && url.charAt(url.length() - 1) == ')') { + return url.substring(0, url.length() - 1); + } else { + return url; + } + } + + private static final Linkify.MatchFilter WEBURL_MATCH_FILTER = (cs, start, end) -> { + if (start > 0) { + if (cs.charAt(start - 1) == '@' || cs.charAt(start - 1) == '.' + || cs.subSequence(Math.max(0, start - 3), start).equals("://")) { + return false; + } + } + if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { + if (end < cs.length()) { + // Reject strings that were probably matched only because they contain a dot followed by + // by some known TLD (see also comment for WORD_BOUNDARY in Patterns.java) + if (Character.isAlphabetic(cs.charAt(end - 1)) && Character.isAlphabetic(cs.charAt(end))) { + return false; + } + } + } + + return true; + }; + + private static final Linkify.MatchFilter XMPPURI_MATCH_FILTER = (s, start, end) -> { + XmppUri uri = new XmppUri(s.subSequence(start, end).toString()); + return uri.isJidValid(); + }; + + public static void addLinks(Editable body, boolean includeGeo) { + Linkify.addLinks(body, Patterns.XMPP_PATTERN, "xmpp", XMPPURI_MATCH_FILTER, null); + Linkify.addLinks(body, Patterns.AUTOLINK_WEB_URL, "http", WEBURL_MATCH_FILTER, WEBURL_TRANSFORM_FILTER); + if (includeGeo) { + Linkify.addLinks(body, GeoHelper.GEO_URI, "geo"); + } + FixedURLSpan.fix(body); + } +}
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