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Implement nested quotes through iteration.

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Millesimus 2021-08-20 21:53:01 +02:00 committed by Daniel Gultsch
parent 65a72827bc
commit 74d60d0131
2 changed files with 50 additions and 39 deletions
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3
src/main/java/eu/siacs/conversations/Config.java
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@ -201,4 +201,7 @@ public final class Config {
public final static float LOCATION_FIX_SPACE_DELTA = 10; // m
public final static int LOCATION_FIX_SIGNIFICANT_TIME_DELTA = 1000 * 60 * 2; // ms
}
// How deep nested quotes should become. '2' means one quote nested in another.
public static final int QUOTE_MAX_DEPTH = 3;
}

86
src/main/java/eu/siacs/conversations/ui/adapter/MessageAdapter.java
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@ -59,6 +59,7 @@ import eu.siacs.conversations.ui.text.DividerSpan;
import eu.siacs.conversations.ui.text.QuoteSpan;
import eu.siacs.conversations.ui.util.AvatarWorkerTask;
import eu.siacs.conversations.ui.util.MyLinkify;
import eu.siacs.conversations.ui.util.QuoteHelper;
import eu.siacs.conversations.ui.util.ViewUtil;
import eu.siacs.conversations.ui.widget.ClickableMovementMethod;
import eu.siacs.conversations.utils.CryptoHelper;
@ -359,48 +360,55 @@ public class MessageAdapter extends ArrayAdapter<Message> {
*/
private boolean handleTextQuotes(SpannableStringBuilder body, boolean darkBackground) {
boolean startsWithQuote = false;
char previous = '\n';
int lineStart = -1;
int lineTextStart = -1;
int quoteStart = -1;
for (int i = 0; i <= body.length(); i++) {
char current = body.length() > i ? body.charAt(i) : '\n';
if (lineStart == -1) {
if (previous == '\n') {
if ((current == '>' && UIHelper.isPositionFollowedByQuoteableCharacter(body, i))
|| current == '\u00bb' && !UIHelper.isPositionFollowedByQuote(body, i)) {
// Line start with quote
lineStart = i;
if (quoteStart == -1) quoteStart = i;
if (i == 0) startsWithQuote = true;
} else if (quoteStart >= 0) {
// Line start without quote, apply spans there
applyQuoteSpan(body, quoteStart, i - 1, darkBackground);
quoteStart = -1;
int quoteDepth = 1;
while (QuoteHelper.bodyContainsQuoteStart(body) && quoteDepth <= Config.QUOTE_MAX_DEPTH) {
char previous = '\n';
int lineStart = -1;
int lineTextStart = -1;
int quoteStart = -1;
for (int i = 0; i <= body.length(); i++) {
char current = body.length() > i ? body.charAt(i) : '\n';
if (lineStart == -1) {
if (previous == '\n') {
if (
(QuoteHelper.isPositionQuoteStart(body, i)
|| (current == '\u00bb' && !UIHelper.isPositionFollowedByQuote(body, i)
))) {
// Line start with quote
lineStart = i;
if (quoteStart == -1) quoteStart = i;
if (i == 0) startsWithQuote = true;
} else if (quoteStart >= 0) {
// Line start without quote, apply spans there
applyQuoteSpan(body, quoteStart, i - 1, darkBackground);
quoteStart = -1;
quoteDepth++;
}
}
} else {
// Remove extra spaces between > and first character in the line
// > character will be removed too
if (current != ' ' && lineTextStart == -1) {
lineTextStart = i;
}
if (current == '\n') {
body.delete(lineStart, lineTextStart);
i -= lineTextStart - lineStart;
if (i == lineStart) {
// Avoid empty lines because span over empty line can be hidden
body.insert(i++, " ");
}
lineStart = -1;
lineTextStart = -1;
}
}
} else {
// Remove extra spaces between > and first character in the line
// > character will be removed too
if (current != ' ' && lineTextStart == -1) {
lineTextStart = i;
}
if (current == '\n') {
body.delete(lineStart, lineTextStart);
i -= lineTextStart - lineStart;
if (i == lineStart) {
// Avoid empty lines because span over empty line can be hidden
body.insert(i++, " ");
}
lineStart = -1;
lineTextStart = -1;
}
previous = current;
}
if (quoteStart >= 0) {
// Apply spans to finishing open quote
applyQuoteSpan(body, quoteStart, body.length(), darkBackground);
quoteDepth++;
}
previous = current;
}
if (quoteStart >= 0) {
// Apply spans to finishing open quote
applyQuoteSpan(body, quoteStart, body.length(), darkBackground);
}
return startsWithQuote;
}