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Code Issues Packages Projects Releases Wiki Activity

Highlight found text

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M66B
2021-11-12 16:12:54 +01:00
parent 99acb26b69
commit d29ab53dec
4 changed files with 66 additions and 3 deletions
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51
app/src/main/java/eu/faircode/email/HtmlHelper.java
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@@ -36,6 +36,7 @@ import android.os.Build;
import android.text.Html;
import android.text.Layout;
import android.text.Spannable;
import android.text.SpannableString;
import android.text.SpannableStringBuilder;
import android.text.Spanned;
import android.text.TextDirectionHeuristics;
@@ -2400,6 +2401,56 @@ public class HtmlHelper {
return ssb;
}
static Document highlightSearched(Context context, Document document, String searched) {
String find = searched.toLowerCase();
int color = Helper.resolveColor(context, R.attr.colorHighlight);
NodeTraversor.traverse(new NodeVisitor() {
@Override
public void head(Node node, int depth) {
if (node instanceof TextNode) {
TextNode tnode = (TextNode) node;
String text = tnode.getWholeText();
int start = text.toLowerCase().indexOf(find);
if (start < 0)
return;
int prev = 0;
Element holder = document.createElement("span");
while (start >= 0) {
if (start > prev)
holder.appendText(text.substring(prev, start));
Element span = document.createElement("span");
span.attr("style", mergeStyles(
span.attr("style"),
"font-size:larger; background-color:" + encodeWebColor(color)
));
span.text(text.substring(start, start + find.length()));
holder.appendChild(span);
prev = start + find.length();
start = text.toLowerCase().indexOf(find, prev);
}
if (prev < text.length())
holder.appendText(text.substring(prev));
tnode.before(holder);
tnode.text("");
}
}
@Override
public void tail(Node node, int depth) {
}
}, document);
return document;
}
static void cleanup(Document d) {
// https://www.chromestatus.com/feature/5756335865987072
// Some messages contain 100 thousands of Apple spaces