WiP: #559 Use emojis for checkboxes in widgets if possible (1c63c0b7) · Commits · e / os / Notes

markdown/src/main/java/it/niedermann/android/markdown/MarkdownUtil.java

+41 −30

Original line number	Diff line number	Diff line
		@@ -15,16 +15,12 @@ import android.widget.TextView;
		import androidx.annotation.ColorInt;
		import androidx.annotation.NonNull;
		import androidx.annotation.Nullable;
		import androidx.annotation.RequiresApi;
		import androidx.core.text.HtmlCompat;
		import androidx.core.text.TextUtilsCompat;

		import com.yydcdut.markdown.MarkdownProcessor;
		import com.yydcdut.markdown.syntax.text.TextFactory;
		import com.yydcdut.rxmarkdown.RxMarkdown;

		import java.util.Arrays;
		import java.util.List;
		import java.util.regex.Matcher;
		import java.util.regex.Pattern;

		@@ -54,9 +50,9 @@ public class MarkdownUtil {
		private static final Pattern PATTERN_MARKDOWN_LINK = Pattern.compile("\\[(.+)?]\\(([^ ]+?)?( \"(.+)\")?\\)");

		@Nullable
		private static final String checkboxCheckedEmoji = getCheckboxCheckedEmoji();
		private static final String checkboxCheckedEmoji = getCheckboxEmoji(true);
		@Nullable
		private static final String checkboxUncheckedEmoji = getCheckboxUncheckedEmoji();
		private static final String checkboxUncheckedEmoji = getCheckboxEmoji(false);

		private MarkdownUtil() {
		// Util class
		@@ -69,41 +65,56 @@ public class MarkdownUtil {
		* Therefore we currently fall back on {@link RxMarkdown} as the results will look better in this special case.
		* We might change this in the future by utilizing {@link Markwon} and creating a {@link Spanned} from an {@link HtmlCompat} interemediate.
		*/
		public static CharSequence renderForRemoteView(@NonNull Context context, @NonNull CharSequence content) {
		public static CharSequence renderForRemoteView(@NonNull Context context, @NonNull String content) {
		final MarkdownProcessor markdownProcessor = new MarkdownProcessor(context);
		markdownProcessor.factory(TextFactory.create());
		final CharSequence parsed = parseCompat(markdownProcessor, content);
		return replaceCheckboxesWithEmojis(parsed);
		return parseCompat(markdownProcessor, replaceCheckboxesWithEmojis(content));
		}

		private static CharSequence replaceCheckboxesWithEmojis(CharSequence parsed) {
		private static CharSequence replaceCheckboxesWithEmojis(String content) {
		final String[] lines = TextUtils.split(content, "\n");
		boolean isInFencedCodeBlock = false;
		int fencedCodeBlockSigns = 0;
		for (int i = 0; i < lines.length; i++) {
		final Matcher matcher = PATTERN_CODE_FENCE.matcher(lines[i]);
		if (matcher.find()) {
		final String fence = matcher.group(1);
		if (fence != null) {
		int currentFencedCodeBlockSigns = fence.length();
		if (isInFencedCodeBlock) {
		if (currentFencedCodeBlockSigns == fencedCodeBlockSigns) {
		isInFencedCodeBlock = false;
		fencedCodeBlockSigns = 0;
		}
		} else {
		isInFencedCodeBlock = true;
		fencedCodeBlockSigns = currentFencedCodeBlockSigns;
		}
		}
		}
		if (!isInFencedCodeBlock) {
		if (lineStartsWithCheckbox(lines[i]) && lines[i].trim().length() > EListType.DASH.checkboxChecked.length()) {
		for(EListType listType: EListType.values()) {
		if (checkboxCheckedEmoji != null) {
		parsed = TextUtils.replace(parsed, new String[]{"- [x]"}, new String[]{checkboxCheckedEmoji});
		lines[i] = lines[i].replace(listType.checkboxChecked, checkboxCheckedEmoji);
		}
		if (checkboxUncheckedEmoji != null) {
		parsed = TextUtils.replace(parsed, new String[]{"- [ ]"}, new String[]{checkboxUncheckedEmoji});
		lines[i] = lines[i].replace(listType.checkboxUnchecked, checkboxUncheckedEmoji);
		}
		return parsed;
		}

		private static String getCheckboxCheckedEmoji() {
		final String[] emojis = new String[]{"✅", "☑️", "✔️"};
		final Paint paint = new Paint();
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
		for (String emoji : emojis) {
		if (paint.hasGlyph(emoji)) {
		return emoji;
		}
		}
		}
		return null;
		return TextUtils.join("\n", lines);
		}

		private static String getCheckboxUncheckedEmoji() {
		final String[] emojis = new String[]{"❌", "\uD83D\uDD32️", "☐️"};
		@Nullable
		private static String getCheckboxEmoji(boolean checked) {
		final String[] checkedEmojis = new String[]{"✅", "☑️", "✔️"};
		final String[] uncheckedEmojis = new String[]{"❌", "\uD83D\uDD32️", "☐️"};
		final Paint paint = new Paint();
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
		for (String emoji : emojis) {
		for (String emoji : checked ? checkedEmojis: uncheckedEmojis) {
		if (paint.hasGlyph(emoji)) {
		return emoji;
		}