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Update sample

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This commit is contained in:
Dimitry Ivanov 2020-03-24 09:55:28 +03:00
parent 392333806a
commit 54e5b27d59
1 changed files with 132 additions and 1 deletions
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133
sample/src/main/java/io/noties/markwon/sample/basicplugins/BasicPluginsActivity.java
View File

@ -14,8 +14,11 @@ import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import org.commonmark.node.BulletList;
import org.commonmark.node.Heading;
import org.commonmark.node.ListItem;
import org.commonmark.node.Node;
import org.commonmark.node.OrderedList;
import org.commonmark.node.Paragraph;
import java.util.Collection;
@ -28,11 +31,16 @@ import io.noties.markwon.Markwon;
import io.noties.markwon.MarkwonConfiguration;
import io.noties.markwon.MarkwonSpansFactory;
import io.noties.markwon.MarkwonVisitor;
import io.noties.markwon.Prop;
import io.noties.markwon.RenderProps;
import io.noties.markwon.SoftBreakAddsNewLinePlugin;
import io.noties.markwon.SpanFactory;
import io.noties.markwon.core.CoreProps;
import io.noties.markwon.core.MarkwonTheme;
import io.noties.markwon.core.spans.BulletListItemSpan;
import io.noties.markwon.core.spans.HeadingSpan;
import io.noties.markwon.core.spans.LastLineSpacingSpan;
import io.noties.markwon.core.spans.OrderedListItemSpan;
import io.noties.markwon.image.ImageItem;
import io.noties.markwon.image.ImagesPlugin;
import io.noties.markwon.image.SchemeHandler;
@ -62,7 +70,8 @@ public class BasicPluginsActivity extends ActivityWithMenuOptions {
.add("headingNoSpace", this::headingNoSpace)
.add("headingNoSpaceBlockHandler", this::headingNoSpaceBlockHandler)
.add("allBlocksNoForcedLine", this::allBlocksNoForcedLine)
.add("anchor", this::anchor);
.add("anchor", this::anchor)
.add("letterOrderedList", this::letterOrderedList);
}
@Override
@ -502,4 +511,126 @@ final Markwon markwon = Markwon.builder(this)
markwon.setMarkdown(textView, md);
}
private static final Prop<Boolean> ORDERED_IS_NESTED = Prop.of("my-ordered-is-nested");
private void letterOrderedList() {
// first level of ordered-list is still number,
// other ordered-list levels start with `A`
final String md = "" +
"1. Hello there!\n" +
"1. And here is how:\n" +
" 1. First\n" +
" 2. Second\n" +
" 3. Third\n" +
" 1. And first here\n\n";
final Markwon markwon = Markwon.builder(this)
.usePlugin(new AbstractMarkwonPlugin() {
@Override
public void configureVisitor(@NonNull MarkwonVisitor.Builder builder) {
builder.on(ListItem.class, new MarkwonVisitor.NodeVisitor<ListItem>() {
@Override
public void visit(@NonNull MarkwonVisitor visitor, @NonNull ListItem listItem) {
final int length = visitor.length();
// it's important to visit children before applying render props (
// we can have nested children, who are list items also, thus they will
// override out props (if we set them before visiting children)
visitor.visitChildren(listItem);
final Node parent = listItem.getParent();
if (parent instanceof OrderedList) {
final int start = ((OrderedList) parent).getStartNumber();
CoreProps.LIST_ITEM_TYPE.set(visitor.renderProps(), CoreProps.ListItemType.ORDERED);
CoreProps.ORDERED_LIST_ITEM_NUMBER.set(visitor.renderProps(), start);
ORDERED_IS_NESTED.set(visitor.renderProps(), isOrderedListNested(parent));
// after we have visited the children increment start number
final OrderedList orderedList = (OrderedList) parent;
orderedList.setStartNumber(orderedList.getStartNumber() + 1);
} else {
CoreProps.LIST_ITEM_TYPE.set(visitor.renderProps(), CoreProps.ListItemType.BULLET);
CoreProps.BULLET_LIST_ITEM_LEVEL.set(visitor.renderProps(), listLevel(listItem));
}
visitor.setSpansForNodeOptional(listItem, length);
if (visitor.hasNext(listItem)) {
visitor.ensureNewLine();
}
}
});
}
@Override
public void configureSpansFactory(@NonNull MarkwonSpansFactory.Builder builder) {
builder.setFactory(ListItem.class, new SpanFactory() {
@Override
public Object getSpans(@NonNull MarkwonConfiguration configuration, @NonNull RenderProps props) {
// type of list item
// bullet : level
// ordered: number
final Object spans;
if (CoreProps.ListItemType.BULLET == CoreProps.LIST_ITEM_TYPE.require(props)) {
spans = new BulletListItemSpan(
configuration.theme(),
CoreProps.BULLET_LIST_ITEM_LEVEL.require(props)
);
} else {
final int number = CoreProps.ORDERED_LIST_ITEM_NUMBER.require(props);
final String text;
if (ORDERED_IS_NESTED.get(props, false)) {
// or `a`, or any other logic
text = ((char)('A' + number - 1)) + ".\u00a0";
} else {
text = number + ".\u00a0";
}
spans = new OrderedListItemSpan(
configuration.theme(),
text
);
}
return spans;
}
});
}
})
.build();
markwon.setMarkdown(textView, md);
}
private static int listLevel(@NonNull Node node) {
int level = 0;
Node parent = node.getParent();
while (parent != null) {
if (parent instanceof ListItem) {
level += 1;
}
parent = parent.getParent();
}
return level;
}
private static boolean isOrderedListNested(@NonNull Node node) {
node = node.getParent();
while (node != null) {
if (node instanceof OrderedList) {
return true;
}
if (node instanceof BulletList) {
return false;
}
node = node.getParent();
}
return false;
}
}