private FixingResult addSpacesAroundSpansUntilFixed(
SpannableStringBuilder builder, int widthMeasureSpec, int heightMeasureSpec) {
Object[] spans = builder.getSpans(0, builder.length(), Object.class);
List<Object> spansWithSpacesBefore = new ArrayList<Object>(spans.length);
List<Object> spansWithSpacesAfter = new ArrayList<Object>(spans.length);
for (Object span : spans) {
int spanStart = builder.getSpanStart(span);
if (isNotSpace(builder, spanStart - 1)) {
builder.insert(spanStart, " ");
spansWithSpacesBefore.add(span);
}
int spanEnd = builder.getSpanEnd(span);
if (isNotSpace(builder, spanEnd)) {
builder.insert(spanEnd, " ");
spansWithSpacesAfter.add(span);
}
try {
setTextAndMeasure(builder, widthMeasureSpec, heightMeasureSpec);
return FixingResult.fixed(spansWithSpacesBefore, spansWithSpacesAfter);
} catch (IndexOutOfBoundsException notFixed) {
}
}
if (HtmlTextView.DEBUG) {
Log.d(HtmlTextView.TAG, "Could not fix the Spanned by adding spaces around spans");
}
return FixingResult.notFixed();
}
private void resetLinkSpan(SpannableStringBuilder ssb, RichTextConfig config, URLSpan urlSpan) {
int start = ssb.getSpanStart(urlSpan);
int end = ssb.getSpanEnd(urlSpan);
ssb.removeSpan(urlSpan);
LinkHolder linkHolder = new LinkHolder(urlSpan.getURL());
if (config.linkFixCallback != null) {
config.linkFixCallback.fix(linkHolder);
}
LongClickableURLSpan longClickableURLSpan =
new LongClickableURLSpan(
linkHolder, config.onUrlClickListener, config.onUrlLongClickListener);
ssb.setSpan(longClickableURLSpan, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
}
/**
* Set the necessary spans for each spoiler.
*
* <p>The algorithm works in the same way as <code>setCodeFont</code>.
*
* @param sequence
* @return
*/
private CharSequence setSpoilerStyle(SpannableStringBuilder sequence) {
int start = 0;
int end = 0;
for (int i = 0; i < sequence.length(); i++) {
if (sequence.charAt(i) == '[' && i < sequence.length() - 3) {
if (sequence.charAt(i + 1) == '['
&& sequence.charAt(i + 2) == 's'
&& sequence.charAt(i + 3) == '[') {
start = i;
}
} else if (sequence.charAt(i) == ']' && i < sequence.length() - 3) {
if (sequence.charAt(i + 1) == 's'
&& sequence.charAt(i + 2) == ']'
&& sequence.charAt(i + 3) == ']') {
end = i;
}
}
if (end > start) {
sequence.delete(end, end + 4);
sequence.delete(start, start + 4);
BackgroundColorSpan backgroundColorSpan = new BackgroundColorSpan(Color.BLACK);
ForegroundColorSpan foregroundColorSpan = new ForegroundColorSpan(Color.BLACK);
URLSpan urlSpan = sequence.getSpans(start, start, URLSpan.class)[0];
sequence.setSpan(
urlSpan, sequence.getSpanStart(urlSpan), start - 1, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
// spoiler text has a space at the front
sequence.setSpan(
backgroundColorSpan, start + 1, end - 4, Spannable.SPAN_INCLUSIVE_INCLUSIVE);
sequence.setSpan(foregroundColorSpan, start, end - 4, Spannable.SPAN_INCLUSIVE_INCLUSIVE);
storedSpoilerSpans.add(foregroundColorSpan);
storedSpoilerSpans.add(backgroundColorSpan);
// Shift 1 to account for remove of beginning "<"
storedSpoilerStarts.add(start - 1);
storedSpoilerStarts.add(start - 1);
storedSpoilerEnds.add(end - 5);
storedSpoilerEnds.add(end - 5);
sequence.delete(start - 2, start - 1); // remove the trailing <
start = 0;
end = 0;
i = i - 5; // move back to compensate for removal of [[s[
}
}
return sequence;
}
/**
* @desc
* <pre>表情解析,转成unicode字符</pre>
*
* @author Weiliang Hu
* @date 2013-12-17
* @param cs
* @param mContext
* @return
*/
public static String convertToMsg(CharSequence cs, Context mContext) {
SpannableStringBuilder ssb = new SpannableStringBuilder(cs);
ImageSpan[] spans = ssb.getSpans(0, cs.length(), ImageSpan.class);
for (int i = 0; i < spans.length; i++) {
ImageSpan span = spans[i];
String c = span.getSource();
int a = ssb.getSpanStart(span);
int b = ssb.getSpanEnd(span);
if (c.contains("[")) {
ssb.replace(a, b, convertUnicode(c));
}
}
ssb.clearSpans();
return ssb.toString();
}
protected void makeLinkClickable(
SpannableStringBuilder strBuilder, final URLSpan span, final Activity c) {
int start = strBuilder.getSpanStart(span);
int end = strBuilder.getSpanEnd(span);
int flags = strBuilder.getSpanFlags(span);
final ClickableSpan clickable =
new ClickableSpan() {
public void onClick(View view) {
// TODO make clickable ContentOpen.openingText(url, true, c);
}
};
strBuilder.setSpan(clickable, start, end, flags);
strBuilder.removeSpan(span);
}
public static void setTextWithIcon(Context context, TextView textView, String text) {
Spanned html = Html.fromHtml(text);
SpannableStringBuilder builder = new SpannableStringBuilder(html);
ImageSpan[] images = builder.getSpans(0, builder.length(), ImageSpan.class);
if (images != null && images.length > 0) {
ImageSpan imagePlaceholder = images[0];
int start = builder.getSpanStart(imagePlaceholder);
int end = builder.getSpanEnd(imagePlaceholder);
int flags = builder.getSpanFlags(imagePlaceholder);
ImageSpan imageSpan = new ImageSpan(context, R.drawable.lock_icon, ImageSpan.ALIGN_BASELINE);
builder.setSpan(imageSpan, start, end, flags);
builder.removeSpan(imagePlaceholder);
}
textView.setText(builder);
}
@SuppressLint("WrongCall")
private void removeUnneededSpaces(
int widthMeasureSpec,
int heightMeasureSpec,
SpannableStringBuilder builder,
FixingResult result) {
for (Object span : result.spansWithSpacesAfter) {
int spanEnd = builder.getSpanEnd(span);
builder.delete(spanEnd, spanEnd + 1);
try {
setTextAndMeasure(builder, widthMeasureSpec, heightMeasureSpec);
} catch (IndexOutOfBoundsException ignored) {
builder.insert(spanEnd, " ");
}
}
boolean needReset = true;
for (Object span : result.spansWithSpacesBefore) {
int spanStart = builder.getSpanStart(span);
builder.delete(spanStart - 1, spanStart);
try {
setTextAndMeasure(builder, widthMeasureSpec, heightMeasureSpec);
needReset = false;
} catch (IndexOutOfBoundsException ignored) {
needReset = true;
int newSpanStart = spanStart - 1;
builder.insert(newSpanStart, " ");
}
}
if (needReset) {
setText(builder);
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
}
private void icUpdateGecko(boolean force) {
// Skip if receiving a repeated request, or
// if suppressing compositions during text selection.
if ((!force && mIcUpdateSeqno == mLastIcUpdateSeqno) || mSuppressCompositions) {
if (DEBUG) {
Log.d(LOGTAG, "icUpdateGecko() skipped");
}
return;
}
mLastIcUpdateSeqno = mIcUpdateSeqno;
mActionQueue.syncWithGecko();
if (DEBUG) {
Log.d(LOGTAG, "icUpdateGecko()");
}
final int selStart = mText.getSpanStart(Selection.SELECTION_START);
final int selEnd = mText.getSpanEnd(Selection.SELECTION_END);
int composingStart = mText.length();
int composingEnd = 0;
Object[] spans = mText.getSpans(0, composingStart, Object.class);
for (Object span : spans) {
if ((mText.getSpanFlags(span) & Spanned.SPAN_COMPOSING) != 0) {
composingStart = Math.min(composingStart, mText.getSpanStart(span));
composingEnd = Math.max(composingEnd, mText.getSpanEnd(span));
}
}
if (DEBUG) {
Log.d(LOGTAG, " range = " + composingStart + "-" + composingEnd);
Log.d(LOGTAG, " selection = " + selStart + "-" + selEnd);
}
if (composingStart >= composingEnd) {
if (selStart >= 0 && selEnd >= 0) {
onImeSetSelection(selStart, selEnd);
} else {
onImeRemoveComposition();
}
return;
}
if (selEnd >= composingStart && selEnd <= composingEnd) {
onImeAddCompositionRange(
selEnd - composingStart,
selEnd - composingStart,
IME_RANGE_CARETPOSITION,
0,
0,
false,
0,
0,
0);
}
int rangeStart = composingStart;
TextPaint tp = new TextPaint();
TextPaint emptyTp = new TextPaint();
// set initial foreground color to 0, because we check for tp.getColor() == 0
// below to decide whether to pass a foreground color to Gecko
emptyTp.setColor(0);
do {
int rangeType, rangeStyles = 0, rangeLineStyle = IME_RANGE_LINE_NONE;
boolean rangeBoldLine = false;
int rangeForeColor = 0, rangeBackColor = 0, rangeLineColor = 0;
int rangeEnd = mText.nextSpanTransition(rangeStart, composingEnd, Object.class);
if (selStart > rangeStart && selStart < rangeEnd) {
rangeEnd = selStart;
} else if (selEnd > rangeStart && selEnd < rangeEnd) {
rangeEnd = selEnd;
}
CharacterStyle[] styleSpans = mText.getSpans(rangeStart, rangeEnd, CharacterStyle.class);
if (DEBUG) {
Log.d(LOGTAG, " found " + styleSpans.length + " spans @ " + rangeStart + "-" + rangeEnd);
}
if (styleSpans.length == 0) {
rangeType =
(selStart == rangeStart && selEnd == rangeEnd)
? IME_RANGE_SELECTEDRAWTEXT
: IME_RANGE_RAWINPUT;
} else {
rangeType =
(selStart == rangeStart && selEnd == rangeEnd)
? IME_RANGE_SELECTEDCONVERTEDTEXT
: IME_RANGE_CONVERTEDTEXT;
tp.set(emptyTp);
for (CharacterStyle span : styleSpans) {
span.updateDrawState(tp);
}
int tpUnderlineColor = 0;
float tpUnderlineThickness = 0.0f;
// These TextPaint fields only exist on Android ICS+ and are not in the SDK.
if (Versions.feature14Plus) {
tpUnderlineColor = (Integer) getField(tp, "underlineColor", 0);
tpUnderlineThickness = (Float) getField(tp, "underlineThickness", 0.0f);
}
if (tpUnderlineColor != 0) {
rangeStyles |= IME_RANGE_UNDERLINE | IME_RANGE_LINECOLOR;
rangeLineColor = tpUnderlineColor;
// Approximately translate underline thickness to what Gecko understands
if (tpUnderlineThickness <= 0.5f) {
rangeLineStyle = IME_RANGE_LINE_DOTTED;
} else {
rangeLineStyle = IME_RANGE_LINE_SOLID;
if (tpUnderlineThickness >= 2.0f) {
rangeBoldLine = true;
}
}
} else if (tp.isUnderlineText()) {
rangeStyles |= IME_RANGE_UNDERLINE;
rangeLineStyle = IME_RANGE_LINE_SOLID;
}
if (tp.getColor() != 0) {
rangeStyles |= IME_RANGE_FORECOLOR;
rangeForeColor = tp.getColor();
}
if (tp.bgColor != 0) {
rangeStyles |= IME_RANGE_BACKCOLOR;
rangeBackColor = tp.bgColor;
}
}
onImeAddCompositionRange(
rangeStart - composingStart,
rangeEnd - composingStart,
rangeType,
rangeStyles,
rangeLineStyle,
rangeBoldLine,
rangeForeColor,
rangeBackColor,
rangeLineColor);
rangeStart = rangeEnd;
if (DEBUG) {
Log.d(
LOGTAG,
" added "
+ rangeType
+ " : "
+ Integer.toHexString(rangeStyles)
+ " : "
+ Integer.toHexString(rangeForeColor)
+ " : "
+ Integer.toHexString(rangeBackColor));
}
} while (rangeStart < composingEnd);
onImeUpdateComposition(composingStart, composingEnd);
}
private int handleImage(
SpannableStringBuilder ssb,
ImageGetterWrapper imageGetterWrapper,
RichTextConfig config,
boolean cached) {
if (cached) {
ClickableImageSpan[] cis = ssb.getSpans(0, ssb.length(), ClickableImageSpan.class);
if (cis != null && cis.length > 0) {
for (ClickableImageSpan ci : cis) {
int start = ssb.getSpanStart(ci);
int end = ssb.getSpanEnd(ci);
ssb.removeSpan(ci);
OnImageClickListener onImageClickListener = null;
OnImageLongClickListener onImageLongClickListener = null;
if (config.clickable > 0) {
onImageClickListener = config.onImageClickListener;
onImageLongClickListener = config.onImageLongClickListener;
}
Drawable drawable = imageGetterWrapper.getDrawable(ci.getSource());
if (drawable == null) {
drawable = new ColorDrawable(Color.TRANSPARENT);
}
ClickableImageSpan nci =
new ClickableImageSpan(drawable, ci, onImageClickListener, onImageLongClickListener);
ssb.setSpan(nci, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
}
return cis.length;
}
} else if (!config.noImage) {
ImageSpan[] iss = ssb.getSpans(0, ssb.length(), ImageSpan.class);
if (iss != null && iss.length > 0) {
ArrayList<String> imageUrls = new ArrayList<>(iss.length);
for (int i = 0; i < iss.length; i++) {
ImageSpan imageSpan = iss[i];
String imageUrl = imageSpan.getSource();
imageUrls.add(imageUrl);
int start = ssb.getSpanStart(imageSpan);
int end = ssb.getSpanEnd(imageSpan);
ClickableSpan[] clickableSpans = ssb.getSpans(start, end, ClickableSpan.class);
if (clickableSpans != null && clickableSpans.length != 0) {
for (ClickableSpan cs : clickableSpans) {
ssb.removeSpan(cs);
}
}
OnImageClickListener onImageClickListener = null;
OnImageLongClickListener onImageLongClickListener = null;
if (config.clickable > 0) {
onImageClickListener = config.onImageClickListener;
onImageLongClickListener = config.onImageLongClickListener;
}
Drawable drawable = imageGetterWrapper.getDrawable(imageUrl);
if (drawable == null) {
drawable = new ColorDrawable(Color.TRANSPARENT);
}
ClickableImageSpan cacheImageSpan =
new ClickableImageSpan(
drawable, imageUrls, i, onImageClickListener, onImageLongClickListener);
ssb.removeSpan(imageSpan);
ssb.setSpan(cacheImageSpan, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
}
return iss.length;
}
}
return 0;
}
