/**
* Extract the text from a HTML based string. This is similar to what HTML.fromHtml(...) does, but
* this method also removes the embedded images instead of replacing them by a small rectangular
* representation character.
*
* @param html
* @return
*/
public static String extractText(CharSequence html) {
String result = html.toString();
// recognize images in textview HTML contents
if (html instanceof Spanned) {
Spanned text = (Spanned) html;
Object[] styles = text.getSpans(0, text.length(), Object.class);
ArrayList<Pair<Integer, Integer>> removals = new ArrayList<Pair<Integer, Integer>>();
for (Object style : styles) {
if (style instanceof ImageSpan) {
int start = text.getSpanStart(style);
int end = text.getSpanEnd(style);
removals.add(Pair.of(start, end));
}
}
// sort reversed and delete image spans
Collections.sort(
removals,
new Comparator<Pair<Integer, Integer>>() {
@Override
public int compare(Pair<Integer, Integer> lhs, Pair<Integer, Integer> rhs) {
return rhs.getRight().compareTo(lhs.getRight());
}
});
result = text.toString();
for (Pair<Integer, Integer> removal : removals) {
result = result.substring(0, removal.getLeft()) + result.substring(removal.getRight());
}
}
// some line breaks are still in the text, source is unknown
return StringUtils.replace(result, "<br />", "\n").trim();
}
@Override
public void onBindViewHolder(ViewHolder holder, Cursor cursor) {
final boolean isFavorite =
cursor.getInt(cursor.getColumnIndex(QuotesTableHelper.IS_FAVORITE)) == 1;
final boolean isAuthorNonNull =
null != cursor.getString(cursor.getColumnIndex(QuotesTableHelper.AUTHOR));
final String link = cursor.getString(cursor.getColumnIndex(QuotesTableHelper.LINK));
holder.setLink(link);
final String title = cursor.getString(cursor.getColumnIndex(QuotesTableHelper.TITLE));
final long id = cursor.getLong(cursor.getColumnIndex(QuotesTableHelper.ID));
holder.tvPubDate.setText(
DateUtil.getItemPubDate(
new Date(cursor.getLong(cursor.getColumnIndex(QuotesTableHelper.PUB_DATE)))));
if (isFavorite) holder.ivFavorite.setImageResource(android.R.drawable.star_big_on);
else holder.ivFavorite.setImageResource(android.R.drawable.star_big_off);
holder.ivFavorite.setOnClickListener(
v -> QuotesTableHelper.makeFavorite(getContext(), id, !isFavorite));
if (isAuthorNonNull) {
holder.tvText.setVisibility(View.GONE);
holder.ivComics.setVisibility(View.VISIBLE);
final String url = cursor.getString(cursor.getColumnIndex(QuotesTableHelper.DESCRIPTION));
holder.setText(url, cursor.getString(cursor.getColumnIndex(QuotesTableHelper.AUTHOR)));
if (mFavorite) holder.makeClick(0, false);
else holder.makeClick(cursor.getLong(cursor.getColumnIndex(QuotesTableHelper.ID)), true);
Picasso.with(getContext()).load(url).config(Bitmap.Config.ALPHA_8).into(holder.ivComics);
holder.tvTitle.setText(cursor.getString(cursor.getColumnIndex(QuotesTableHelper.AUTHOR)));
} else {
holder.tvText.setVisibility(View.VISIBLE);
holder.ivComics.setVisibility(View.GONE);
String description = cursor.getString(cursor.getColumnIndex(QuotesTableHelper.DESCRIPTION));
if (!description.contains("\n")) {
Spanned text = Html.fromHtml(description);
holder.tvText.setText(highlightTextileNeeded(text.toString()));
holder.setText(text.toString(), null);
} else {
holder.tvText.setText(highlightTextileNeeded(description));
holder.setText(description, null);
}
holder.tvTitle.setText(title);
holder.tvTitle.setOnClickListener(
v -> {
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(link));
getContext().startActivity(intent);
});
}
}
private void updateTextView(View bookView, Integer id, String value) {
TextView textView = (TextView) bookView.findViewById(id);
if (isBlankOrNull(value)) {
textView.setVisibility(View.GONE);
} else {
textView.setVisibility(View.VISIBLE);
Spanned markUp = Html.fromHtml(value);
textView.setText(markUp.toString());
}
}
private static CharSequence removeJumpingBeansSpans(Spanned text) {
SpannableStringBuilder sbb = new SpannableStringBuilder(text.toString());
Object[] spans = text.getSpans(0, text.length(), Object.class);
for (Object span : spans) {
if (!(span instanceof JumpingBeansSpan)) {
sbb.setSpan(span, text.getSpanStart(span), text.getSpanEnd(span), text.getSpanFlags(span));
}
}
return sbb;
}
@Override
public CharSequence filter(
CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
try {
int input = Integer.parseInt(dest.toString() + source.toString());
if (isInRange(min, max, input)) return null;
} catch (NumberFormatException nfe) {
}
return "";
}
public CharSequence filter(
CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
Log.d(
TAG,
"source:"
+ source
+ " start:"
+ start
+ " end:"
+ end
+ " dest:"
+ dest
+ " dstart:"
+ dstart
+ " dend:"
+ dend);
String s = source.toString();
// for(int i=0;i<s.length();i++){
// int c=s.charAt(i);
// if(c!=','&&(c<'0'||c>'9')){
// return "";
// }
// }
int sourceCommaIndex = s.indexOf(',');
if (sourceCommaIndex >= 0) {
int destCommaIndex = dest.toString().indexOf(',');
if (destCommaIndex >= 0) {
s = s.replace(COMMA, EMPYTY); // delete all ',',because of ',' is alread in dest.
} else {
int sourceCommaIndex2 = s.lastIndexOf(',');
if (sourceCommaIndex2 != sourceCommaIndex) { // more one ',' in source
s = s.replace(COMMA, EMPYTY);
}
}
}
source = s;
// if(dstart>0){
// s=dest.subSequence(0, dstart).toString()+s;
// }
// if(dend<dest.length()-1){
// s+=dest.subSequence(dend, dest.length());
// }
Log.d(TAG, "result:" + source);
return source;
}
public void setText(String text) {
Spanned spannedText = Html.fromHtml(text);
text = spannedText.toString();
textWidth = (int) textPaint.measureText(text, 0, text.length());
boolean modifiedText = false;
while (textWidth > maxX) {
text = text.substring(0, text.length() - 1);
textWidth = (int) textPaint.measureText(text, 0, text.length());
modifiedText = true;
}
if (modifiedText) text += "...";
this.text = text;
textPaint.getTextBounds(text, 0, text.length(), bounds);
}
@Override
protected void onPostExecute(Spanned spanned) {
if (mActivity != null && mActivity.getPost() != null && spanned != null) {
if (mActivity.getPost().isLocalDraft()) {
mTextView.setVisibility(View.VISIBLE);
mWebView.setVisibility(View.GONE);
mTextView.setText(spanned);
} else {
mTextView.setVisibility(View.GONE);
mWebView.setVisibility(View.VISIBLE);
mWebView.loadDataWithBaseURL(
"file:///android_asset/", spanned.toString(), "text/html", "utf-8", null);
}
}
mLoadTask = null;
}
@Override
public CharSequence filter(
CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
String destTxt = dest.toString();
String resultingTxt =
destTxt.substring(0, dstart) + source.subSequence(start, end) + destTxt.substring(dend);
if (!resultingTxt.matches("^\\d{1,9}(\\.(\\d{1,2}?)?)?")) {
return "";
} else {
splits = resultingTxt.split("\\.");
if (splits.length == 1) {
userinputlistenerpointexception = false;
} else {
userinputlistenerpointexception = true;
}
}
return null;
}
@Override
public CharSequence filter(
CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
if (end > start) {
String destTxt = dest.toString();
String resultingTxt =
destTxt.substring(0, dstart) + source.subSequence(start, end) + destTxt.substring(dend);
if (!resultingTxt.matches("^\\d{1,3}(\\.(\\d{1,3}(\\.(\\d{1,3}(\\.(\\d{1,3})?)?)?)?)?)?")) {
return "";
} else {
String[] splits = resultingTxt.split("\\.");
for (int i = 0; i < splits.length; i++) {
if (Integer.valueOf(splits[i]) > 255) {
return "";
}
}
}
}
return null;
}
public CharSequence filter(
CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
int i;
this.ch_old = dest.toString().toCharArray();
this.iallnum = 0;
for (char c : this.ch_old) {
this.ch_c = c;
if (SysApplication.isContainsChinese(this.ch_c)) {
this.iallnum += 3;
} else {
this.iallnum++;
}
}
if (this.iallnum >= 30) {
return "";
}
this.ch_new = source.toString().toCharArray();
int keep = 0;
for (i = 0; i < this.ch_new.length; i++) {
this.ch_c = this.ch_new[i];
if (SysApplication.isContainsChinese(this.ch_c)) {
this.iallnum += 3;
} else {
this.iallnum++;
}
if (this.iallnum > 30) {
keep = i;
break;
}
}
if (this.iallnum <= 30) {
return null;
}
if (keep == 0) {
return "";
}
return source.subSequence(start, start + keep);
}
/*
* This method is used to parse the xml file containing
* the articles.
*
* @param InputStream input stream of the download.
*
* @return ArrayList<Article> list of articles parsed from file
*/
public ArrayList<Article> parseXml(InputStream inputStream) {
XmlPullParserFactory pullParserFactory;
ArrayList<Article> articles = null;
String defaultImage = null;
try {
// Create the XmlPullParser factory and parser
pullParserFactory = XmlPullParserFactory.newInstance();
XmlPullParser parser = pullParserFactory.newPullParser();
// Get the xml file and set into the parser.
parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES, false);
parser.setInput(inputStream, null);
int eventType = parser.getEventType();
Article currentItem = null;
// kluge to take care of html to string issue.
int decimal = Integer.parseInt("fffc", 16);
// convert the decimal to character
char tempChar = (char) decimal;
// While not at the end of the document continue checking for required
// items.
while (eventType != XmlPullParser.END_DOCUMENT) {
String name = null;
switch (eventType) {
case XmlPullParser.START_DOCUMENT:
articles = new ArrayList<Article>();
break;
case XmlPullParser.START_TAG:
// Found a start tag. Check if one looking for. It item
// then have a new article. If a title or content then
// save the data.
name = parser.getName();
if (name.equals("item")) {
currentItem = new Article();
} else if (name.equals("title") && currentItem == null) {
// check which feed so can set default image if one
// isn't found.
String temp = parser.nextText();
// Hmmm, intended to access the default image. However,
// this would probably mean having to do differently.
// Should probably save images to internal storage so
// they can be accessed the same as cached images.
if (temp.toLowerCase().contains("google")) {
defaultImage = new String("google");
} else if (temp.toLowerCase().contains("yahoo")) {
defaultImage = new String("yahoo");
}
} else if (currentItem != null) {
if (name.equals("title")) {
currentItem.title = parser.nextText();
} else if (name.equals("description")) {
// TODO: This should be where we pull the image from the description
// and put that into the content image. Since we are already in
// an async task we can do here. If trying to make reusable would
// need to put into another async task.
Spanned result = Html.fromHtml(parser.nextText(), null, null);
currentItem.content = result.toString();
// Major hack to get rid of "obj" chars. Need to do different
// if have time.
currentItem.content = currentItem.content.replace(tempChar, '\0');
} else if (name.equals("pubDate")) {
currentItem.date = parser.nextText();
} else if (name.equals("media:content")) {
// Comment out for now since haven't downloaded images.
// currentItem.imageUri = parser.getAttributeValue(null, "url");
// currentItem.imageUri = parser.nextText();
}
}
break;
case XmlPullParser.END_TAG:
// If this is an end tag check if this means end of item.
// If so then save the article.
name = parser.getName();
if (name.equalsIgnoreCase("item") && currentItem != null) {
// If didn't find an image than use the default
if (currentItem.imageUri == null) {
currentItem.imageUri = defaultImage;
}
articles.add(currentItem);
}
break;
case XmlPullParser.TEXT:
// This is only used for checking how working.
System.out.println("getting text");
}
eventType = parser.next();
}
System.out.println("finally done");
} catch (XmlPullParserException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return articles;
}