+
+ final class IndexAdapter extends BaseAdapter {
+
+ private static final float PADDING_DEFAULT_DP = 8;
+
+ private static final float PADDING_LARGE_DP = 16;
+
+ final Index index;
+
+ final List<RowBase> rows;
+
+ final Set<String> toHighlight;
+
+ private int mPaddingDefault;
+
+ private int mPaddingLarge;
+
+ IndexAdapter(final Index index) {
+ this.index = index;
+ rows = index.rows;
+ this.toHighlight = null;
+ getMetrics();
+ }
+
+ IndexAdapter(final Index index, final List<RowBase> rows, final List<String> toHighlight) {
+ this.index = index;
+ this.rows = rows;
+ this.toHighlight = new LinkedHashSet<>(toHighlight);
+ getMetrics();
+ }
+
+ private void getMetrics() {
+ float scale = 1;
+ // Get the screen's density scale
+ // The previous method getResources().getDisplayMetrics()
+ // used to occasionally trigger a null pointer exception,
+ // so try this instead.
+ // As it still crashes, add a fallback
+ try {
+ DisplayMetrics dm = new DisplayMetrics();
+ getWindowManager().getDefaultDisplay().getMetrics(dm);
+ scale = dm.density;
+ } catch (NullPointerException ignored)
+ {}
+ // Convert the dps to pixels, based on density scale
+ mPaddingDefault = (int) (PADDING_DEFAULT_DP * scale + 0.5f);
+ mPaddingLarge = (int) (PADDING_LARGE_DP * scale + 0.5f);
+ }
+
+ @Override
+ public int getCount() {
+ return rows.size();
+ }
+
+ @Override
+ public RowBase getItem(int position) {
+ return rows.get(position);
+ }
+
+ @Override
+ public long getItemId(int position) {
+ return getItem(position).index();
+ }
+
+ @Override
+ public int getViewTypeCount() {
+ return 5;
+ }
+
+ @Override
+ public int getItemViewType(int position) {
+ final RowBase row = getItem(position);
+ if (row instanceof PairEntry.Row) {
+ final PairEntry entry = ((PairEntry.Row)row).getEntry();
+ final int rowCount = entry.pairs.size();
+ return rowCount > 1 ? 1 : 0;
+ } else if (row instanceof TokenRow) {
+ final IndexEntry indexEntry = ((TokenRow)row).getIndexEntry();
+ return indexEntry.htmlEntries.isEmpty() ? 2 : 3;
+ } else if (row instanceof HtmlEntry.Row) {
+ return 4;
+ } else {
+ throw new IllegalArgumentException("Unsupported Row type: " + row.getClass());
+ }
+ }
+
+ @Override
+ public View getView(int position, View convertView, ViewGroup parent) {
+ final RowBase row = getItem(position);
+ if (row instanceof PairEntry.Row) {
+ return getView(position, (PairEntry.Row) row, parent, (TableLayout)convertView);
+ } else if (row instanceof TokenRow) {
+ return getView((TokenRow) row, parent, (TextView)convertView);
+ } else if (row instanceof HtmlEntry.Row) {
+ return getView((HtmlEntry.Row) row, parent, (TextView)convertView);
+ } else {
+ throw new IllegalArgumentException("Unsupported Row type: " + row.getClass());
+ }
+ }
+
+ private void addBoldSpans(String token, String col1Text, Spannable col1Spannable) {
+ int startPos = 0;
+ while ((startPos = col1Text.indexOf(token, startPos)) != -1) {
+ col1Spannable.setSpan(new StyleSpan(Typeface.BOLD), startPos, startPos
+ + token.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
+ startPos += token.length();
+ }
+ }
+
+ private TableLayout getView(final int position, PairEntry.Row row, ViewGroup parent,
+ TableLayout result) {
+ final Context context = parent.getContext();
+ final PairEntry entry = row.getEntry();
+ final int rowCount = entry.pairs.size();
+ if (result == null) {
+ result = new TableLayout(context);
+ result.setStretchAllColumns(true);
+ // Because we have a Button inside a ListView row:
+ // http://groups.google.com/group/android-developers/browse_thread/thread/3d96af1530a7d62a?pli=1
+ result.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
+ result.setClickable(true);
+ result.setFocusable(false);
+ result.setLongClickable(true);
+// result.setBackgroundResource(android.R.drawable.menuitem_background);
+
+ result.setBackgroundResource(theme.normalRowBg);
+ } else if (result.getChildCount() > rowCount) {
+ result.removeViews(rowCount, result.getChildCount() - rowCount);
+ }
+
+ for (int r = result.getChildCount(); r < rowCount; ++r) {
+ final TableRow.LayoutParams layoutParams = new TableRow.LayoutParams(0, LinearLayout.LayoutParams.WRAP_CONTENT);
+ layoutParams.leftMargin = mPaddingLarge;
+
+ final TableRow tableRow = new TableRow(result.getContext());
+
+ final TextView col1 = new TextView(tableRow.getContext());
+ final TextView col2 = new TextView(tableRow.getContext());
+ if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB) {
+ col1.setTextIsSelectable(true);
+ col2.setTextIsSelectable(true);
+ }
+ col1.setTextColor(textColorFg);
+ col2.setTextColor(textColorFg);
+
+ col1.setWidth(1);
+ col2.setWidth(1);
+
+ col1.setTypeface(typeface);
+ col2.setTypeface(typeface);
+ col1.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
+ col2.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
+ // col2.setBackgroundResource(theme.otherLangBg);
+
+ if (index.swapPairEntries) {
+ col2.setOnLongClickListener(textViewLongClickListenerIndex0);
+ col1.setOnLongClickListener(textViewLongClickListenerIndex1);
+ } else {
+ col1.setOnLongClickListener(textViewLongClickListenerIndex0);
+ col2.setOnLongClickListener(textViewLongClickListenerIndex1);
+ }
+
+ // Set the columns in the table.
+ if (r == 0) {
+ tableRow.addView(col1, layoutParams);
+ tableRow.addView(col2, layoutParams);
+ } else {
+ for (int i = 0; i < 2; i++) {
+ final TextView bullet = new TextView(tableRow.getContext());
+ bullet.setText(" • ");
+ LinearLayout wrapped = new LinearLayout(context);
+ wrapped.setOrientation(LinearLayout.HORIZONTAL);
+ LinearLayout.LayoutParams p1 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT, 0);
+ wrapped.addView(bullet, p1);
+ LinearLayout.LayoutParams p2 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT, 1);
+ wrapped.addView(i == 0 ? col1 : col2, p2);
+ tableRow.addView(wrapped, layoutParams);
+ }
+ }
+
+ result.addView(tableRow);
+ }
+
+ for (int r = 0; r < rowCount; ++r) {
+ final TableRow tableRow = (TableRow)result.getChildAt(r);
+ View left = tableRow.getChildAt(0);
+ View right = tableRow.getChildAt(1);
+ if (r > 0) {
+ left = ((ViewGroup)left).getChildAt(1);
+ right = ((ViewGroup)right).getChildAt(1);
+ }
+ final TextView col1 = (TextView)left;
+ final TextView col2 = (TextView)right;
+
+ // Set what's in the columns.
+ final Pair pair = entry.pairs.get(r);
+ final String col1Text = index.swapPairEntries ? pair.lang2 : pair.lang1;
+ final String col2Text = index.swapPairEntries ? pair.lang1 : pair.lang2;
+ final Spannable col1Spannable = new SpannableString(col1Text);
+ final Spannable col2Spannable = new SpannableString(col2Text);
+
+ // Bold the token instances in col1.
+ if (toHighlight != null) {
+ for (final String token : toHighlight) {
+ addBoldSpans(token, col1Text, col1Spannable);
+ }
+ } else
+ addBoldSpans(row.getTokenRow(true).getToken(), col1Text, col1Spannable);
+
+ createTokenLinkSpans(col1, col1Spannable, col1Text);
+ createTokenLinkSpans(col2, col2Spannable, col2Text);
+
+ col1.setText(col1Spannable);
+ col2.setText(col2Spannable);
+ }
+
+ result.setOnClickListener(new TextView.OnClickListener() {
+ @Override
+ public void onClick(View v) {
+ DictionaryActivity.this.onListItemClick(getListView(), v, position, position);
+ }
+ });
+
+ return result;
+ }
+
+ private TextView getPossibleLinkToHtmlEntryView(final boolean isTokenRow,
+ final String text, final boolean hasMainEntry, final List<HtmlEntry> htmlEntries,
+ final String htmlTextToHighlight, ViewGroup parent, TextView textView) {
+ final Context context = parent.getContext();
+ if (textView == null) {
+ textView = new TextView(context);
+ // set up things invariant across one ItemViewType
+ // ItemViewTypes handled here are:
+ // 2: isTokenRow == true, htmlEntries.isEmpty() == true
+ // 3: isTokenRow == true, htmlEntries.isEmpty() == false
+ // 4: isTokenRow == false, htmlEntries.isEmpty() == false
+ textView.setPadding(isTokenRow ? mPaddingDefault : mPaddingLarge, mPaddingDefault, mPaddingDefault, 0);
+ textView.setOnLongClickListener(indexIndex > 0 ? textViewLongClickListenerIndex1 : textViewLongClickListenerIndex0);
+ textView.setLongClickable(true);
+
+ textView.setTypeface(typeface);
+ if (isTokenRow) {
+ textView.setTextAppearance(context, theme.tokenRowFg);
+ textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 4 * fontSizeSp / 3);
+ } else {
+ textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
+ }
+ textView.setTextColor(textColorFg);
+ if (!htmlEntries.isEmpty()) {
+ textView.setClickable(true);
+ textView.setMovementMethod(LinkMovementMethod.getInstance());
+ }
+ }
+
+ textView.setBackgroundResource(hasMainEntry ? theme.tokenRowMainBg
+ : theme.tokenRowOtherBg);
+
+ // Make it so we can long-click on these token rows, too:
+ final Spannable textSpannable = new SpannableString(text);
+ createTokenLinkSpans(textView, textSpannable, text);
+
+ if (!htmlEntries.isEmpty()) {
+ final ClickableSpan clickableSpan = new ClickableSpan() {
+ @Override
+ public void onClick(View widget) {
+ }
+ };
+ textSpannable.setSpan(clickableSpan, 0, text.length(),
+ Spannable.SPAN_INCLUSIVE_INCLUSIVE);
+ textView.setOnClickListener(new OnClickListener() {
+ @Override
+ public void onClick(View v) {
+ showHtml(htmlEntries, htmlTextToHighlight);
+ }
+ });
+ }
+ textView.setText(textSpannable);
+ return textView;
+ }
+
+ private TextView getView(TokenRow row, ViewGroup parent, final TextView result) {
+ final IndexEntry indexEntry = row.getIndexEntry();
+ return getPossibleLinkToHtmlEntryView(true, indexEntry.token, row.hasMainEntry,
+ indexEntry.htmlEntries, null, parent, result);
+ }
+
+ private TextView getView(HtmlEntry.Row row, ViewGroup parent, final TextView result) {
+ final HtmlEntry htmlEntry = row.getEntry();
+ final TokenRow tokenRow = row.getTokenRow(true);
+ return getPossibleLinkToHtmlEntryView(false,
+ getString(R.string.seeAlso, htmlEntry.title, htmlEntry.entrySource.getName()),
+ false, Collections.singletonList(htmlEntry), tokenRow.getToken(), parent,
+ result);
+ }
+