mirror of
https://github.com/k0shk0sh/FastHub.git
synced 2025-12-08 19:05:54 +00:00
329 lines
13 KiB
Java
329 lines
13 KiB
Java
package com.fastaccess.provider.markdown;
|
|
|
|
import android.support.annotation.NonNull;
|
|
import android.support.annotation.Nullable;
|
|
import android.text.Html;
|
|
import android.view.ViewTreeObserver;
|
|
import android.webkit.MimeTypeMap;
|
|
import android.widget.EditText;
|
|
import android.widget.TextView;
|
|
|
|
import com.annimon.stream.IntStream;
|
|
import com.fastaccess.helper.InputHelper;
|
|
import com.fastaccess.helper.Logger;
|
|
import com.fastaccess.provider.markdown.extension.emoji.EmojiExtension;
|
|
import com.fastaccess.provider.markdown.extension.mention.MentionExtension;
|
|
import com.fastaccess.provider.timeline.HtmlHelper;
|
|
|
|
import org.commonmark.Extension;
|
|
import org.commonmark.ext.autolink.AutolinkExtension;
|
|
import org.commonmark.ext.front.matter.YamlFrontMatterExtension;
|
|
import org.commonmark.ext.gfm.strikethrough.StrikethroughExtension;
|
|
import org.commonmark.ext.gfm.tables.TablesExtension;
|
|
import org.commonmark.ext.ins.InsExtension;
|
|
import org.commonmark.node.Node;
|
|
import org.commonmark.parser.Parser;
|
|
import org.commonmark.renderer.html.HtmlRenderer;
|
|
|
|
import java.util.Arrays;
|
|
import java.util.List;
|
|
|
|
/**
|
|
* Created by Kosh on 24 Nov 2016, 7:43 PM
|
|
*/
|
|
|
|
public class MarkDownProvider {
|
|
|
|
private static final String[] IMAGE_EXTENSIONS = {".png", ".jpg", ".jpeg", ".gif", ".svg"};
|
|
|
|
private static final String[] MARKDOWN_EXTENSIONS = {
|
|
".md", ".mkdn", ".mdwn", ".mdown", ".markdown", ".mkd", ".mkdown", ".ron", ".rst", "adoc"
|
|
};
|
|
|
|
private static final String[] ARCHIVE_EXTENSIONS = {
|
|
".zip", ".7z", ".rar", ".tar.gz", ".tgz", ".tar.Z", ".tar.bz2", ".tbz2", ".tar.lzma", ".tlz", ".apk", ".jar", ".dmg", ".pdf"
|
|
};
|
|
|
|
private MarkDownProvider() {}
|
|
|
|
public static void setMdText(@NonNull TextView textView, String markdown) {
|
|
if (!InputHelper.isEmpty(markdown)) {
|
|
int width = textView.getMeasuredWidth();
|
|
if (width > 0) {
|
|
render(textView, markdown, width);
|
|
} else {
|
|
textView.getViewTreeObserver().addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
|
|
@Override public boolean onPreDraw() {
|
|
textView.getViewTreeObserver().removeOnPreDrawListener(this);
|
|
render(textView, markdown, textView.getMeasuredWidth());
|
|
return true;
|
|
}
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|
|
public static void setMdText(@NonNull TextView textView, String markdown, int width) {
|
|
if (!InputHelper.isEmpty(markdown)) {
|
|
render(textView, markdown, width);
|
|
}
|
|
}
|
|
|
|
protected static void render(@NonNull TextView textView, String markdown, int width) {
|
|
List<Extension> extensions = Arrays.asList(
|
|
StrikethroughExtension.create(),
|
|
AutolinkExtension.create(),
|
|
TablesExtension.create(),
|
|
InsExtension.create(),
|
|
EmojiExtension.create(),
|
|
MentionExtension.create(),
|
|
YamlFrontMatterExtension.create());
|
|
Parser parser = Parser.builder()
|
|
.extensions(extensions)
|
|
.build();
|
|
try {
|
|
Node node = parser.parse(markdown);
|
|
String rendered = HtmlRenderer
|
|
.builder()
|
|
.extensions(extensions)
|
|
.build()
|
|
.render(node);
|
|
HtmlHelper.htmlIntoTextView(textView, rendered, (width - (textView.getPaddingStart() + textView.getPaddingEnd())));
|
|
} catch (Exception ignored) {
|
|
HtmlHelper.htmlIntoTextView(textView, markdown, (width - (textView.getPaddingStart() + textView.getPaddingEnd())));
|
|
}
|
|
}
|
|
|
|
public static void stripMdText(@NonNull TextView textView, String markdown) {
|
|
if (!InputHelper.isEmpty(markdown)) {
|
|
Parser parser = Parser.builder().build();
|
|
Node node = parser.parse(markdown);
|
|
textView.setText(stripHtml(HtmlRenderer.builder().build().render(node)));
|
|
}
|
|
}
|
|
|
|
public static String stripHtml(String html) {
|
|
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.N) {
|
|
return Html.fromHtml(html, Html.FROM_HTML_MODE_LEGACY).toString();
|
|
} else {
|
|
return Html.fromHtml(html).toString();
|
|
}
|
|
}
|
|
|
|
public static void addList(@NonNull EditText editText, @NonNull String list) {
|
|
String tag = list + " ";
|
|
String source = editText.getText().toString();
|
|
int selectionStart = editText.getSelectionStart();
|
|
int selectionEnd = editText.getSelectionEnd();
|
|
String substring = source.substring(0, selectionStart);
|
|
int line = substring.lastIndexOf(10);
|
|
if (line != -1) {
|
|
selectionStart = line + 1;
|
|
} else {
|
|
selectionStart = 0;
|
|
}
|
|
substring = source.substring(selectionStart, selectionEnd);
|
|
String[] split = substring.split("\n");
|
|
StringBuilder stringBuffer = new StringBuilder();
|
|
if (split.length > 0)
|
|
for (String s : split) {
|
|
if (s.length() == 0 && stringBuffer.length() != 0) {
|
|
stringBuffer.append("\n");
|
|
continue;
|
|
}
|
|
if (!s.trim().startsWith(tag)) {
|
|
if (stringBuffer.length() > 0) stringBuffer.append("\n");
|
|
stringBuffer.append(tag).append(s);
|
|
} else {
|
|
if (stringBuffer.length() > 0) stringBuffer.append("\n");
|
|
stringBuffer.append(s);
|
|
}
|
|
}
|
|
|
|
if (stringBuffer.length() == 0) {
|
|
stringBuffer.append(tag);
|
|
}
|
|
editText.getText().replace(selectionStart, selectionEnd, stringBuffer.toString());
|
|
editText.setSelection(stringBuffer.length() + selectionStart);
|
|
}
|
|
|
|
public static void addHeader(@NonNull EditText editText, int level) {
|
|
String source = editText.getText().toString();
|
|
int selectionStart = editText.getSelectionStart();
|
|
int selectionEnd = editText.getSelectionEnd();
|
|
StringBuilder result = new StringBuilder();
|
|
String substring = source.substring(selectionStart, selectionEnd);
|
|
if (!hasNewLine(source, selectionStart))
|
|
result.append("\n");
|
|
IntStream.range(0, level).forEach(integer -> result.append("#"));
|
|
result.append(" ").append(substring);
|
|
editText.getText().replace(selectionStart, selectionEnd, result.toString());
|
|
editText.setSelection(selectionStart + result.length());
|
|
|
|
}
|
|
|
|
public static void addItalic(@NonNull EditText editText) {
|
|
String source = editText.getText().toString();
|
|
int selectionStart = editText.getSelectionStart();
|
|
int selectionEnd = editText.getSelectionEnd();
|
|
String substring = source.substring(selectionStart, selectionEnd);
|
|
String result = "_" + substring + "_ ";
|
|
editText.getText().replace(selectionStart, selectionEnd, result);
|
|
editText.setSelection(result.length() + selectionStart - 2);
|
|
|
|
}
|
|
|
|
public static void addBold(@NonNull EditText editText) {
|
|
String source = editText.getText().toString();
|
|
int selectionStart = editText.getSelectionStart();
|
|
int selectionEnd = editText.getSelectionEnd();
|
|
String substring = source.substring(selectionStart, selectionEnd);
|
|
String result = "**" + substring + "** ";
|
|
editText.getText().replace(selectionStart, selectionEnd, result);
|
|
editText.setSelection(result.length() + selectionStart - 3);
|
|
|
|
}
|
|
|
|
public static void addCode(@NonNull EditText editText) {
|
|
try {
|
|
String source = editText.getText().toString();
|
|
int selectionStart = editText.getSelectionStart();
|
|
int selectionEnd = editText.getSelectionEnd();
|
|
String substring = source.substring(selectionStart, selectionEnd);
|
|
String result;
|
|
if (hasNewLine(source, selectionStart))
|
|
result = "```\n" + substring + "\n```\n";
|
|
else
|
|
result = "\n```\n" + substring + "\n```\n";
|
|
|
|
editText.getText().replace(selectionStart, selectionEnd, result);
|
|
editText.setSelection(result.length() + selectionStart - 5);
|
|
|
|
} catch (Exception e) {
|
|
e.printStackTrace();
|
|
}
|
|
}
|
|
|
|
public static void addInlinleCode(@NonNull EditText editText) {
|
|
String source = editText.getText().toString();
|
|
int selectionStart = editText.getSelectionStart();
|
|
int selectionEnd = editText.getSelectionEnd();
|
|
String substring = source.substring(selectionStart, selectionEnd);
|
|
String result = "`" + substring + "` ";
|
|
editText.getText().replace(selectionStart, selectionEnd, result);
|
|
editText.setSelection(result.length() + selectionStart - 2);
|
|
|
|
}
|
|
|
|
public static void addStrikeThrough(@NonNull EditText editText) {
|
|
String source = editText.getText().toString();
|
|
int selectionStart = editText.getSelectionStart();
|
|
int selectionEnd = editText.getSelectionEnd();
|
|
String substring = source.substring(selectionStart, selectionEnd);
|
|
String result = "~~" + substring + "~~ ";
|
|
editText.getText().replace(selectionStart, selectionEnd, result);
|
|
editText.setSelection(result.length() + selectionStart - 3);
|
|
|
|
}
|
|
|
|
public static void addQuote(@NonNull EditText editText) {
|
|
String source = editText.getText().toString();
|
|
int selectionStart = editText.getSelectionStart();
|
|
int selectionEnd = editText.getSelectionEnd();
|
|
String substring = source.substring(selectionStart, selectionEnd);
|
|
String result;
|
|
if (hasNewLine(source, selectionStart)) {
|
|
result = "> " + substring;
|
|
} else {
|
|
result = "\n> " + substring;
|
|
|
|
}
|
|
editText.getText().replace(selectionStart, selectionEnd, result);
|
|
editText.setSelection(result.length() + selectionStart);
|
|
|
|
}
|
|
|
|
public static void addDivider(@NonNull EditText editText) {
|
|
String source = editText.getText().toString();
|
|
int selectionStart = editText.getSelectionStart();
|
|
String result;
|
|
if (hasNewLine(source, selectionStart)) {
|
|
result = "-------\n";
|
|
} else {
|
|
result = "\n-------\n";
|
|
}
|
|
editText.getText().replace(selectionStart, selectionStart, result);
|
|
editText.setSelection(result.length() + selectionStart);
|
|
|
|
}
|
|
|
|
public static void addPhoto(@NonNull EditText editText, @NonNull String title, @NonNull String link) {
|
|
String result = "![" + InputHelper.toString(title) + "](" + InputHelper.toString(link) + ")";
|
|
insertAtCursor(editText, result);
|
|
}
|
|
|
|
public static void addLink(@NonNull EditText editText, @NonNull String title, @NonNull String link) {
|
|
String result = "[" + InputHelper.toString(title) + "](" + InputHelper.toString(link) + ")";
|
|
insertAtCursor(editText, result);
|
|
}
|
|
|
|
private static boolean hasNewLine(@NonNull String source, int selectionStart) {
|
|
try {
|
|
if (source.isEmpty()) return true;
|
|
source = source.substring(0, selectionStart);
|
|
return source.charAt(source.length() - 1) == 10;
|
|
} catch (StringIndexOutOfBoundsException e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public static boolean isImage(@Nullable String name) {
|
|
if (InputHelper.isEmpty(name)) return false;
|
|
name = name.toLowerCase();
|
|
for (String value : IMAGE_EXTENSIONS) {
|
|
String extension = MimeTypeMap.getFileExtensionFromUrl(name);
|
|
if ((extension != null && value.replace(".", "").equals(extension)) || name.endsWith(value)) return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public static boolean isMarkdown(@Nullable String name) {
|
|
if (InputHelper.isEmpty(name)) return false;
|
|
name = name.toLowerCase();
|
|
for (String value : MARKDOWN_EXTENSIONS) {
|
|
String extension = MimeTypeMap.getFileExtensionFromUrl(name);
|
|
if ((extension != null && value.replace(".", "").equals(extension)) ||
|
|
name.equalsIgnoreCase("README") || name.endsWith(value))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
public static boolean isArchive(@Nullable String name) {
|
|
if (InputHelper.isEmpty(name)) return false;
|
|
name = name.toLowerCase();
|
|
for (String value : ARCHIVE_EXTENSIONS) {
|
|
String extension = MimeTypeMap.getFileExtensionFromUrl(name);
|
|
if ((extension != null && value.replace(".", "").equals(extension)) || name.endsWith(value)) return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
public static void insertAtCursor(@NonNull EditText editText, @NonNull String text) {
|
|
String oriContent = editText.getText().toString();
|
|
int start = editText.getSelectionStart();
|
|
int end = editText.getSelectionEnd();
|
|
int index = start >= 0 ? start : 0;
|
|
Logger.e(start, end);
|
|
if (start >= 0 && end > 0) {
|
|
editText.setText(editText.getText().replace(start, end, text));
|
|
} else {
|
|
StringBuilder builder = new StringBuilder(oriContent);
|
|
builder.insert(index, text);
|
|
editText.setText(builder.toString());
|
|
editText.setSelection(index + text.length());
|
|
}
|
|
}
|
|
}
|