// no super to call through to
        private void press(android.text.Editable content, object what)
        {
            int state = content.getSpanFlags(what);

            if (state == PRESSED)
            {
            }
            else
            {
                // repeat before use
                if (state == RELEASED)
                {
                    content.setSpan(what, 0, 0, LOCKED);
                }
                else
                {
                    if (state == USED)
                    {
                    }
                    else
                    {
                        // repeat after use
                        if (state == LOCKED)
                        {
                            content.removeSpan(what);
                        }
                        else
                        {
                            content.setSpan(what, 0, 0, PRESSED);
                        }
                    }
                }
            }
        }
        // no super to call through to
        private void release(android.text.Editable content, object what, android.view.KeyEvent
                             @event)
        {
            int current = content.getSpanFlags(what);

            switch (@event.getKeyCharacterMap().getModifierBehavior())
            {
            case android.view.KeyCharacterMap.MODIFIER_BEHAVIOR_CHORDED_OR_TOGGLED:
            {
                if (current == USED)
                {
                    content.removeSpan(what);
                }
                else
                {
                    if (current == PRESSED)
                    {
                        content.setSpan(what, 0, 0, RELEASED);
                    }
                }
                break;
            }

            default:
            {
                content.removeSpan(what);
                break;
            }
            }
        }
Exemple #3
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        public override bool onKeyDown(android.view.View view, android.text.Editable content
                                       , int keyCode, android.view.KeyEvent @event)
        {
            int selStart;
            int selEnd;
            int pref = 0;

            if (view != null)
            {
                pref = android.text.method.TextKeyListener.getInstance().getPrefs(view.getContext
                                                                                      ());
            }
            {
                int a = android.text.Selection.getSelectionStart(content);
                int b = android.text.Selection.getSelectionEnd(content);
                selStart = System.Math.Min(a, b);
                selEnd   = System.Math.Max(a, b);
                if (selStart < 0 || selEnd < 0)
                {
                    selStart = selEnd = 0;
                    android.text.Selection.setSelection(content, 0, 0);
                }
            }
            int activeStart = content.getSpanStart(android.text.method.TextKeyListener.ACTIVE
                                                   );
            int activeEnd = content.getSpanEnd(android.text.method.TextKeyListener.ACTIVE);
            // QWERTY keyboard normal case
            int i = @event.getUnicodeChar(@event.getMetaState() | getMetaState(content));

            if (!mFullKeyboard)
            {
                int count = @event.getRepeatCount();
                if (count > 0 && selStart == selEnd && selStart > 0)
                {
                    char c = content[selStart - 1];
                    if (c == i || c == Sharpen.CharHelper.ToUpper(i) && view != null)
                    {
                        if (showCharacterPicker(view, content, c, false, count))
                        {
                            resetMetaState(content);
                            return(true);
                        }
                    }
                }
            }
            if (i == android.view.KeyCharacterMap.PICKER_DIALOG_INPUT)
            {
                if (view != null)
                {
                    showCharacterPicker(view, content, android.view.KeyCharacterMap.PICKER_DIALOG_INPUT
                                        , true, 1);
                }
                resetMetaState(content);
                return(true);
            }
            if (i == android.view.KeyCharacterMap.HEX_INPUT)
            {
                int start;
                if (selStart == selEnd)
                {
                    start = selEnd;
                    while (start > 0 && selEnd - start < 4 && Sharpen.CharHelper.Digit(content[start
                                                                                               - 1], 16) >= 0)
                    {
                        start--;
                    }
                }
                else
                {
                    start = selStart;
                }
                int ch = -1;
                try
                {
                    string hex = android.text.TextUtils.substring(content, start, selEnd);
                    ch = System.Convert.ToInt32(hex, 16);
                }
                catch (System.ArgumentException)
                {
                }
                if (ch >= 0)
                {
                    selStart = start;
                    android.text.Selection.setSelection(content, selStart, selEnd);
                    i = ch;
                }
                else
                {
                    i = 0;
                }
            }
            if (i != 0)
            {
                bool dead = false;
                if ((i & android.view.KeyCharacterMap.COMBINING_ACCENT) != 0)
                {
                    dead = true;
                    i    = i & android.view.KeyCharacterMap.COMBINING_ACCENT_MASK;
                }
                if (activeStart == selStart && activeEnd == selEnd)
                {
                    bool replace = false;
                    if (selEnd - selStart - 1 == 0)
                    {
                        char accent   = content[selStart];
                        int  composed = android.view.KeyEvent.getDeadChar(accent, i);
                        if (composed != 0)
                        {
                            i       = composed;
                            replace = true;
                        }
                    }
                    if (!replace)
                    {
                        android.text.Selection.setSelection(content, selEnd);
                        content.removeSpan(android.text.method.TextKeyListener.ACTIVE);
                        selStart = selEnd;
                    }
                }
                if ((pref & android.text.method.TextKeyListener.AUTO_CAP) != 0 && Sharpen.CharHelper.IsLower
                        (i) && android.text.method.TextKeyListener.shouldCap(mAutoCap, content, selStart
                                                                             ))
                {
                    int where = content.getSpanEnd(android.text.method.TextKeyListener.CAPPED);
                    int flags = content.getSpanFlags(android.text.method.TextKeyListener.CAPPED);
                    if (where == selStart && (((flags >> 16) & unchecked ((int)(0xFFFF))) == i))
                    {
                        content.removeSpan(android.text.method.TextKeyListener.CAPPED);
                    }
                    else
                    {
                        flags = i << 16;
                        i     = Sharpen.CharHelper.ToUpper(i);
                        if (selStart == 0)
                        {
                            content.setSpan(android.text.method.TextKeyListener.CAPPED, 0, 0, android.text.SpannedClass.SPAN_MARK_MARK
                                            | flags);
                        }
                        else
                        {
                            content.setSpan(android.text.method.TextKeyListener.CAPPED, selStart - 1, selStart
                                            , android.text.SpannedClass.SPAN_EXCLUSIVE_EXCLUSIVE | flags);
                        }
                    }
                }
                if (selStart != selEnd)
                {
                    android.text.Selection.setSelection(content, selEnd);
                }
                content.setSpan(OLD_SEL_START, selStart, selStart, android.text.SpannedClass.SPAN_MARK_MARK
                                );
                content.replace(selStart, selEnd, java.lang.CharSequenceProxy.Wrap(((char)i).ToString
                                                                                       ()));
                int oldStart = content.getSpanStart(OLD_SEL_START);
                selEnd = android.text.Selection.getSelectionEnd(content);
                if (oldStart < selEnd)
                {
                    content.setSpan(android.text.method.TextKeyListener.LAST_TYPED, oldStart, selEnd,
                                    android.text.SpannedClass.SPAN_EXCLUSIVE_EXCLUSIVE);
                    if (dead)
                    {
                        android.text.Selection.setSelection(content, oldStart, selEnd);
                        content.setSpan(android.text.method.TextKeyListener.ACTIVE, oldStart, selEnd, android.text.SpannedClass.SPAN_EXCLUSIVE_EXCLUSIVE
                                        );
                    }
                }
                adjustMetaAfterKeypress(content);
                // potentially do autotext replacement if the character
                // that was typed was an autotext terminator
                if ((pref & android.text.method.TextKeyListener.AUTO_TEXT) != 0 && mAutoText && (
                        i == ' ' || i == '\t' || i == '\n' || i == ',' || i == '.' || i == '!' || i == '?' ||
                        i == '"' || Sharpen.CharHelper.GetType(i) == Sharpen.CharHelper.END_PUNCTUATION
                        ) && content.getSpanEnd(android.text.method.TextKeyListener.INHIBIT_REPLACEMENT)
                    != oldStart)
                {
                    int x;
                    for (x = oldStart; x > 0; x--)
                    {
                        char c = content[x - 1];
                        if (c != '\'' && !System.Char.IsLetter(c))
                        {
                            break;
                        }
                    }
                    string rep = getReplacement(content, x, oldStart, view);
                    if (rep != null)
                    {
                        android.text.method.QwertyKeyListener.Replaced[] repl = content.getSpans <android.text.method.QwertyKeyListener
                                                                                                  .Replaced>(0, content.Length);
                        {
                            for (int a = 0; a < repl.Length; a++)
                            {
                                content.removeSpan(repl[a]);
                            }
                        }
                        char[] orig = new char[oldStart - x];
                        android.text.TextUtils.getChars(content, x, oldStart, orig, 0);
                        content.setSpan(new android.text.method.QwertyKeyListener.Replaced(orig), x, oldStart
                                        , android.text.SpannedClass.SPAN_EXCLUSIVE_EXCLUSIVE);
                        content.replace(x, oldStart, java.lang.CharSequenceProxy.Wrap(rep));
                    }
                }
                // Replace two spaces by a period and a space.
                if ((pref & android.text.method.TextKeyListener.AUTO_PERIOD) != 0 && mAutoText)
                {
                    selEnd = android.text.Selection.getSelectionEnd(content);
                    if (selEnd - 3 >= 0)
                    {
                        if (content[selEnd - 1] == ' ' && content[selEnd - 2] == ' ')
                        {
                            char c = content[selEnd - 3];
                            {
                                for (int j = selEnd - 3; j > 0; j--)
                                {
                                    if (c == '"' || Sharpen.CharHelper.GetType(c) == Sharpen.CharHelper.END_PUNCTUATION)
                                    {
                                        c = content[j - 1];
                                    }
                                    else
                                    {
                                        break;
                                    }
                                }
                            }
                            if (System.Char.IsLetter(c) || System.Char.IsDigit(c))
                            {
                                content.replace(selEnd - 2, selEnd - 1, java.lang.CharSequenceProxy.Wrap("."));
                            }
                        }
                    }
                }
                return(true);
            }
            else
            {
                if (keyCode == android.view.KeyEvent.KEYCODE_DEL && (@event.hasNoModifiers() || @event
                                                                     .hasModifiers(android.view.KeyEvent.META_ALT_ON)) && selStart == selEnd)
                {
                    // special backspace case for undoing autotext
                    int consider = 1;
                    // if backspacing over the last typed character,
                    // it undoes the autotext prior to that character
                    // (unless the character typed was newline, in which
                    // case this behavior would be confusing)
                    if (content.getSpanEnd(android.text.method.TextKeyListener.LAST_TYPED) == selStart)
                    {
                        if (content[selStart - 1] != '\n')
                        {
                            consider = 2;
                        }
                    }
                    android.text.method.QwertyKeyListener.Replaced[] repl = content.getSpans <android.text.method.QwertyKeyListener
                                                                                              .Replaced>(selStart - consider, selStart);
                    if (repl.Length > 0)
                    {
                        int    st  = content.getSpanStart(repl[0]);
                        int    en  = content.getSpanEnd(repl[0]);
                        string old = new string(repl[0].mText);
                        content.removeSpan(repl[0]);
                        // only cancel the autocomplete if the cursor is at the end of
                        // the replaced span (or after it, because the user is
                        // backspacing over the space after the word, not the word
                        // itself).
                        if (selStart >= en)
                        {
                            content.setSpan(android.text.method.TextKeyListener.INHIBIT_REPLACEMENT, en, en,
                                            android.text.SpannedClass.SPAN_POINT_POINT);
                            content.replace(st, en, java.lang.CharSequenceProxy.Wrap(old));
                            en = content.getSpanStart(android.text.method.TextKeyListener.INHIBIT_REPLACEMENT
                                                      );
                            if (en - 1 >= 0)
                            {
                                content.setSpan(android.text.method.TextKeyListener.INHIBIT_REPLACEMENT, en - 1,
                                                en, android.text.SpannedClass.SPAN_EXCLUSIVE_EXCLUSIVE);
                            }
                            else
                            {
                                content.removeSpan(android.text.method.TextKeyListener.INHIBIT_REPLACEMENT);
                            }
                            adjustMetaAfterKeypress(content);
                        }
                        else
                        {
                            adjustMetaAfterKeypress(content);
                            return(base.onKeyDown(view, content, keyCode, @event));
                        }
                        return(true);
                    }
                }
            }
            return(base.onKeyDown(view, content, keyCode, @event));
        }