highlight search term in search results

This commit is contained in:
Daniel Gultsch 2018-04-28 23:50:35 +02:00
parent effeb7b585
commit 3011f875eb
49 changed files with 59 additions and 5 deletions

View File

@ -140,7 +140,7 @@
transform="translate(0,-2)">
<g
id="g3759"
style="fill:#c64545;fill-opacity:1;stroke:none;fill-rule:nonzero;filter:url(#filter3811)">
style="fill:#ad4545;fill-opacity:1;stroke:none;fill-rule:nonzero;filter:url(#filter3811)">
<path
style="display:none"
d="m 8,6 c 2,2 4,6 4,10 L 16,6 z"

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View File

@ -207,6 +207,7 @@ public class SearchActivity extends XmppActivity implements TextWatcher, OnSearc
} else {
MessageSearchTask.cancelRunningTasks();
this.messages.clear();
messageListAdapter.setHighlightedTerm(null);
messageListAdapter.notifyDataSetChanged();
changeBackground(false, false);
}
@ -216,6 +217,7 @@ public class SearchActivity extends XmppActivity implements TextWatcher, OnSearc
public void onSearchResultsAvailable(String term, List<Message> messages) {
runOnUiThread(() -> {
this.messages.clear();
messageListAdapter.setHighlightedTerm(term);
DateSeparator.addAll(messages);
this.messages.addAll(messages);
messageListAdapter.notifyDataSetChanged();

View File

@ -99,6 +99,8 @@ public class MessageAdapter extends ArrayAdapter<Message> implements CopyTextVie
+ "\\;\\/\\?\\@\\&\\=\\#\\~\\-\\.\\+\\!\\*\\'\\(\\)\\,\\_])"
+ "|(?:\\%[a-fA-F0-9]{2}))+");
private String highlightedText = null;
private static final Linkify.TransformFilter WEBURL_TRANSFORM_FILTER = (matcher, url) -> {
if (url == null) {
return null;
@ -548,6 +550,9 @@ public class MessageAdapter extends ArrayAdapter<Message> implements CopyTextVie
}
StylingHelper.format(body, viewHolder.messageBody.getCurrentTextColor());
if (highlightedText != null) {
StylingHelper.highlight(activity, body, highlightedText, StylingHelper.isDarkText(viewHolder.messageBody));
}
Linkify.addLinks(body, XMPP_PATTERN, "xmpp", XMPPURI_MATCH_FILTER, null);
Linkify.addLinks(body, Patterns.AUTOLINK_WEB_URL, "http", WEBURL_MATCH_FILTER, WEBURL_TRANSFORM_FILTER);
@ -1003,6 +1008,10 @@ public class MessageAdapter extends ArrayAdapter<Message> implements CopyTextVie
}
}
public void setHighlightedTerm(String term) {
this.highlightedText = term;
}
public interface OnQuoteListener {
void onQuote(String text);
}

View File

@ -29,22 +29,28 @@
package eu.siacs.conversations.utils;
import android.content.Context;
import android.graphics.Color;
import android.graphics.Typeface;
import android.support.annotation.ColorInt;
import android.support.v4.content.ContextCompat;
import android.text.Editable;
import android.text.ParcelableSpan;
import android.text.SpannableString;
import android.text.Spanned;
import android.text.TextWatcher;
import android.text.style.BackgroundColorSpan;
import android.text.style.ForegroundColorSpan;
import android.text.style.StrikethroughSpan;
import android.text.style.StyleSpan;
import android.text.style.TypefaceSpan;
import android.widget.EditText;
import android.widget.TextView;
import java.util.Arrays;
import java.util.List;
import eu.siacs.conversations.R;
import eu.siacs.conversations.entities.Message;
import eu.siacs.conversations.ui.text.QuoteSpan;
@ -85,6 +91,24 @@ public class StylingHelper {
format(editable, end, editable.length() - 1, textColor);
}
public static void highlight(final Context context, final Editable editable, String needle, boolean dark) {
final int length = needle.length();
String string = editable.toString();
int start = indexOfIgnoreCase(string, needle, 0);
while (start != -1) {
int end = start + length;
editable.setSpan(new BackgroundColorSpan(ContextCompat.getColor(context, dark ? R.color.deep_purple_a100 : R.color.deep_purple_a200)), start, end, SpannableString.SPAN_EXCLUSIVE_EXCLUSIVE);
editable.setSpan(new ForegroundColorSpan(ContextCompat.getColor(context, dark ? R.color.black87 : R.color.white)), start, end, SpannableString.SPAN_EXCLUSIVE_EXCLUSIVE);
start = indexOfIgnoreCase(string, needle, start + length);
}
}
public static boolean isDarkText(TextView textView) {
int argb = textView.getCurrentTextColor();
return Color.red(argb) + Color.green(argb) + Color.blue(argb) == 0;
}
private static ParcelableSpan createSpanForStyle(ImStyleParser.Style style) {
switch (style.getKeyword()) {
case "*":
@ -114,6 +138,25 @@ public class StylingHelper {
return Color.argb(Math.round(Color.alpha(c) * 0.6f), Color.red(c), Color.green(c), Color.blue(c));
}
private static int indexOfIgnoreCase(final String haystack, final String needle, final int start) {
if (haystack == null || needle == null) {
return -1;
}
final int endLimit = haystack.length() - needle.length() + 1;
if (start > endLimit) {
return -1;
}
if (needle.length() == 0) {
return start;
}
for (int i = start; i < endLimit; i++) {
if (haystack.regionMatches(true, i, needle, 0, needle.length())) {
return i;
}
}
return -1;
}
public static class MessageEditorStyler implements TextWatcher {
private final EditText mEditText;

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