mirror of
https://github.com/nextcloud/notes-android.git
synced 2024-11-25 14:26:13 +03:00
Apply ToggleTaskListSpan only for areas without ClickableSpan
Signed-off-by: Stefan Niedermann <info@niedermann.it>
This commit is contained in:
Stefan Niedermann
parent
3ea6cf1226
commit
db3513961c
5 changed files with 129 additions and 124 deletions
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@ -2,6 +2,7 @@ package it.niedermann.owncloud.notes.edit;
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import android.content.Intent;
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import android.content.SharedPreferences;
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import android.graphics.Color;
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import android.graphics.Typeface;
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import android.os.Bundle;
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import android.text.Layout;
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@ -1,22 +1,19 @@
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package it.niedermann.android.markdown.markwon.plugins;
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import android.text.Spannable;
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import android.text.style.URLSpan;
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import android.widget.TextView;
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import androidx.annotation.NonNull;
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import org.commonmark.node.Link;
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import java.util.Collection;
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import java.util.LinkedList;
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import java.util.function.Function;
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import io.noties.markwon.AbstractMarkwonPlugin;
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import io.noties.markwon.MarkwonPlugin;
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import io.noties.markwon.MarkwonSpansFactory;
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import io.noties.markwon.core.CoreProps;
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import it.niedermann.android.markdown.markwon.span.InterceptedURLSpan;
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import static android.text.Spanned.SPAN_EXCLUSIVE_EXCLUSIVE;
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import static it.niedermann.android.markdown.MarkdownUtil.getContentAsSpannable;
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public class LinkClickInterceptorPlugin extends AbstractMarkwonPlugin {
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@NonNull
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@ -27,20 +24,9 @@ public class LinkClickInterceptorPlugin extends AbstractMarkwonPlugin {
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}
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@Override
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public void afterSetText(@NonNull TextView textView) {
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super.afterSetText(textView);
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if (onLinkClickCallbacks.size() > 0) {
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final Spannable spannable = getContentAsSpannable(textView);
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final URLSpan[] spans = spannable.getSpans(0, spannable.length(), URLSpan.class);
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for (URLSpan originalSpan : spans) {
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final InterceptedURLSpan interceptedSpan = new InterceptedURLSpan(onLinkClickCallbacks, originalSpan.getURL());
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final int start = spannable.getSpanStart(originalSpan);
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final int end = spannable.getSpanEnd(originalSpan);
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spannable.removeSpan(originalSpan);
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spannable.setSpan(interceptedSpan, start, end, SPAN_EXCLUSIVE_EXCLUSIVE);
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}
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}
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public void configureSpansFactory(@NonNull MarkwonSpansFactory.Builder builder) {
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super.configureSpansFactory(builder);
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builder.setFactory(Link.class, (configuration, props) -> new InterceptedURLSpan(onLinkClickCallbacks, CoreProps.LINK_DESTINATION.get(props)));
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}
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public void registerOnLinkClickCallback(@NonNull Function<String, Boolean> callback) {
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@ -1,19 +1,20 @@
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package it.niedermann.android.markdown.markwon.plugins;
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import android.util.Log;
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import android.text.Spannable;
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import android.text.style.ClickableSpan;
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import android.util.Range;
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import androidx.annotation.NonNull;
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import org.commonmark.node.AbstractVisitor;
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import org.commonmark.node.Block;
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import org.commonmark.node.HardLineBreak;
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import org.commonmark.node.Node;
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import org.commonmark.node.Paragraph;
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import org.commonmark.node.SoftLineBreak;
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import org.commonmark.node.Text;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.List;
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import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.function.BiConsumer;
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import java.util.stream.Collectors;
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import io.noties.markwon.AbstractMarkwonPlugin;
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import io.noties.markwon.MarkwonVisitor;
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@ -56,32 +57,6 @@ public class ToggleableTaskListPlugin extends AbstractMarkwonPlugin {
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.get(TaskListItem.class);
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final Object spans = spanFactory == null ? null :
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spanFactory.getSpans(visitor.configuration(), visitor.renderProps());
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if (spans != null) {
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final TaskListSpan taskListSpan;
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if (spans instanceof TaskListSpan[]) {
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if (((TaskListSpan[]) spans).length > 0) {
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taskListSpan = ((TaskListSpan[]) spans)[0];
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} else {
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taskListSpan = null;
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}
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} else if (spans instanceof TaskListSpan) {
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taskListSpan = (TaskListSpan) spans;
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} else {
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taskListSpan = null;
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}
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final int content = TaskListContextVisitor.contentLength(node);
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if (content > 0 && taskListSpan != null) {
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// maybe additionally identify this task list (for persistence)
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visitor.builder().setSpan(
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new ToggleTaskListSpan(enabled, toggleListener, taskListSpan, visitor.builder().subSequence(length, length + content).toString()),
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length,
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length + content
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);
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}
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}
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SpannableBuilder.setSpans(
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visitor.builder(),
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spans,
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@ -95,48 +70,111 @@ public class ToggleableTaskListPlugin extends AbstractMarkwonPlugin {
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});
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}
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static class TaskListContextVisitor extends AbstractVisitor {
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private int contentLength = 0;
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@Override
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public void afterRender(@NonNull Node node, @NonNull MarkwonVisitor visitor) {
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super.afterRender(node, visitor);
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final Spannable spanned = visitor.builder().spannableStringBuilder();
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final List<SpannableBuilder.Span> spans = visitor.builder().getSpans(0, visitor.builder().length());
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final List<TaskListSpan> taskListSpans = spans.stream()
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.filter(span -> span.what instanceof TaskListSpan)
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.map(span -> ((TaskListSpan) span.what))
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.sorted((o1, o2) -> spanned.getSpanStart(o1) - spanned.getSpanStart(o2))
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.collect(Collectors.toList());
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static int contentLength(Node node) {
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final TaskListContextVisitor visitor = new TaskListContextVisitor();
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visitor.visitChildren(node);
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return visitor.contentLength;
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}
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@Override
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public void visit(Text text) {
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super.visit(text);
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contentLength += text.getLiteral().length();
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}
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// NB! if count both soft and hard breaks as having length of 1
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@Override
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public void visit(SoftLineBreak softLineBreak) {
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super.visit(softLineBreak);
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contentLength += 1;
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}
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// NB! if count both soft and hard breaks as having length of 1
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@Override
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public void visit(HardLineBreak hardLineBreak) {
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super.visit(hardLineBreak);
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contentLength += 1;
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}
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@Override
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protected void visitChildren(Node parent) {
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Node node = parent.getFirstChild();
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while (node != null) {
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// A subclass of this visitor might modify the node, resulting in getNext returning a different node or no
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// node after visiting it. So get the next node before visiting.
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Node next = node.getNext();
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if (node instanceof Block && !(node instanceof Paragraph)) {
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break;
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}
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node.accept(this);
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node = next;
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for (int position = 0; position < taskListSpans.size(); position++) {
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final TaskListSpan taskListSpan = taskListSpans.get(position);
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final int start = spanned.getSpanStart(taskListSpan);
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// final int contentLength = TaskListContextVisitor.contentLength(node);
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// final int end = start + contentLength;
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final int end = spanned.getSpanEnd(taskListSpan);
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final List<Range<Integer>> freeRanges = findFreeRanges(spanned, start, end);
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for (Range<Integer> freeRange : freeRanges) {
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visitor.builder().setSpan(
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new ToggleTaskListSpan(enabled, toggleListener, taskListSpan, position),
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freeRange.getLower(), freeRange.getUpper());
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}
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}
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}
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/**
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* @return a list of ranges in the given {@param spanned} from {@param start} to {@param end} which is <strong>not</strong> taken for a {@link ClickableSpan}.
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*/
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@NonNull
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private static List<Range<Integer>> findFreeRanges(@NonNull Spannable spanned, int start, int end) {
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final List<Range<Integer>> freeRanges;
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final List<ClickableSpan> clickableSpans = getClickableSpans(spanned, start, end);
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if (clickableSpans.size() > 0) {
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freeRanges = new ArrayList<>(clickableSpans.size());
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int from = start;
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for (ClickableSpan clickableSpan : clickableSpans) {
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final int clickableStart = spanned.getSpanStart(clickableSpan);
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final int clickableEnd = spanned.getSpanEnd(clickableSpan);
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if (from != clickableStart) {
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freeRanges.add(new Range<>(from, clickableStart));
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}
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from = clickableEnd;
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}
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if (clickableSpans.size() > 0) {
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final int lastUpperBlocker = spanned.getSpanEnd(clickableSpans.get(clickableSpans.size() - 1));
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if (lastUpperBlocker < end) {
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freeRanges.add(new Range<>(lastUpperBlocker, end));
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}
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}
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} else {
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freeRanges = Collections.singletonList(new Range<>(start, end));
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}
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return freeRanges;
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}
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@NonNull
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private static List<ClickableSpan> getClickableSpans(@NonNull Spannable spanned, int start, int end) {
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return Arrays.stream(spanned.getSpans(start, end, ClickableSpan.class))
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.sorted((o1, o2) -> spanned.getSpanStart(o1) - spanned.getSpanStart(o2))
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.collect(Collectors.toList());
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}
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// static class TaskListContextVisitor extends AbstractVisitor {
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// private int contentLength = 0;
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//
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// static int contentLength(Node node) {
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// final TaskListContextVisitor visitor = new TaskListContextVisitor();
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// visitor.visitChildren(node);
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// return visitor.contentLength;
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// }
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//
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// @Override
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// public void visit(Text text) {
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// super.visit(text);
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// contentLength += text.getLiteral().length();
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// }
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//
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// // NB! if count both soft and hard breaks as having length of 1
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// @Override
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// public void visit(SoftLineBreak softLineBreak) {
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// super.visit(softLineBreak);
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// contentLength += 1;
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// }
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//
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// // NB! if count both soft and hard breaks as having length of 1
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// @Override
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// public void visit(HardLineBreak hardLineBreak) {
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// super.visit(hardLineBreak);
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// contentLength += 1;
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// }
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//
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// @Override
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// protected void visitChildren(Node parent) {
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// Node node = parent.getFirstChild();
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// while (node != null) {
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// // A subclass of this visitor might modify the node, resulting in getNext returning a different node or no
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// // node after visiting it. So get the next node before visiting.
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// Node next = node.getNext();
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// if (node instanceof Block && !(node instanceof Paragraph)) {
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// break;
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// }
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// node.accept(this);
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// node = next;
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// }
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// }
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// }
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}
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@ -1,8 +1,10 @@
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package it.niedermann.android.markdown.markwon.span;
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import android.text.Spanned;
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import android.text.style.URLSpan;
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import android.util.Log;
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import android.view.View;
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import android.widget.TextView;
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import androidx.annotation.NonNull;
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@ -22,7 +24,6 @@ public class InterceptedURLSpan extends URLSpan {
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super(url);
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this.onLinkClickCallbacks = onLinkClickCallbacks;
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}
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@Override
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public void onClick(View widget) {
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if (onLinkClickCallbacks.size() > 0) {
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@ -1,15 +1,12 @@
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package it.niedermann.android.markdown.markwon.span;
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import android.text.Spanned;
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import android.text.TextPaint;
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import android.text.style.ClickableSpan;
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import android.util.Log;
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import android.view.View;
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import android.widget.TextView;
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import androidx.annotation.NonNull;
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import java.util.Arrays;
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import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.function.BiConsumer;
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@ -19,42 +16,24 @@ public class ToggleTaskListSpan extends ClickableSpan {
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private static final String TAG = ToggleTaskListSpan.class.getSimpleName();
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final AtomicBoolean enabled;
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final BiConsumer<Integer, Boolean> toggleListener;
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final TaskListSpan span;
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final String content;
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private final AtomicBoolean enabled;
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private final BiConsumer<Integer, Boolean> toggleListener;
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private final TaskListSpan span;
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private final int position;
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public ToggleTaskListSpan(@NonNull AtomicBoolean enabled, @NonNull BiConsumer<Integer, Boolean> toggleListener, @NonNull TaskListSpan span, String content) {
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public ToggleTaskListSpan(@NonNull AtomicBoolean enabled, @NonNull BiConsumer<Integer, Boolean> toggleListener, @NonNull TaskListSpan span, int position) {
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this.enabled = enabled;
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this.toggleListener = toggleListener;
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this.span = span;
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this.content = content;
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this.position = position;
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}
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@Override
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public void onClick(@NonNull View widget) {
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if(enabled.get()) {
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if (enabled.get()) {
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span.setDone(!span.isDone());
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widget.invalidate();
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// it must be a TextView
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final TextView textView = (TextView) widget;
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// it must be spanned
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// TODO what if textView is not a spanned?
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final Spanned spanned = (Spanned) textView.getText();
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final ClickableSpan[] toggles = spanned.getSpans(0, spanned.length(), getClass());
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Arrays.sort(toggles, (o1, o2) -> spanned.getSpanStart(o1) - spanned.getSpanStart(o2));
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int currentTogglePosition = -1;
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for (int i = 0; i < toggles.length; i++) {
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if (spanned.getSpanStart(toggles[i]) == spanned.getSpanStart(this) && spanned.getSpanEnd(toggles[i]) == spanned.getSpanEnd(this)) {
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currentTogglePosition = i;
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break;
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}
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}
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toggleListener.accept(currentTogglePosition, span.isDone());
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toggleListener.accept(position, span.isDone());
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} else {
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Log.w(TAG, "Prevented toggling checkbox because the view is disabled");
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}
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