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gecko/mobile/android/base/GeckoInputConnection.java

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/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko;
import android.R;
import android.content.Context;
import android.os.Build;
import android.os.SystemClock;
import android.provider.Settings.Secure;
import android.text.Editable;
import android.text.InputType;
import android.text.Selection;
import android.text.Spannable;
import android.text.SpannableStringBuilder;
import android.text.Spanned;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.text.method.KeyListener;
import android.text.method.TextKeyListener;
import android.text.style.BackgroundColorSpan;
import android.text.style.CharacterStyle;
import android.text.style.ForegroundColorSpan;
import android.text.style.UnderlineSpan;
import android.util.DisplayMetrics;
import android.util.Log;
import android.util.LogPrinter;
import android.view.KeyCharacterMap;
import android.view.KeyEvent;
import android.view.View;
import android.view.inputmethod.BaseInputConnection;
import android.view.inputmethod.CompletionInfo;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.ExtractedText;
import android.view.inputmethod.ExtractedTextRequest;
import android.view.inputmethod.InputConnection;
import android.view.inputmethod.InputMethodManager;
import org.mozilla.gecko.gfx.InputConnectionHandler;
import org.mozilla.gecko.gfx.LayerController;
import java.util.Arrays;
import java.util.Collection;
import java.util.Timer;
import java.util.TimerTask;
public class GeckoInputConnection
extends BaseInputConnection
implements TextWatcher, InputConnectionHandler {
private static final boolean DEBUG = false;
protected static final String LOGTAG = "GeckoInputConnection";
// IME stuff
public static final int IME_STATE_DISABLED = 0;
public static final int IME_STATE_ENABLED = 1;
public static final int IME_STATE_PASSWORD = 2;
public static final int IME_STATE_PLUGIN = 3;
private static final int NOTIFY_IME_RESETINPUTSTATE = 0;
private static final int NOTIFY_IME_SETOPENSTATE = 1;
private static final int NOTIFY_IME_CANCELCOMPOSITION = 2;
private static final int NOTIFY_IME_FOCUSCHANGE = 3;
private static final int NO_COMPOSITION_STRING = -1;
private static final int INLINE_IME_MIN_DISPLAY_SIZE = 480;
private static final char UNICODE_BULLET = '\u2022';
private static final char UNICODE_CENT_SIGN = '\u00a2';
private static final char UNICODE_COPYRIGHT_SIGN = '\u00a9';
private static final char UNICODE_CRARR = '\u21b2'; // ↵
private static final char UNICODE_DIVISION_SIGN = '\u00f7';
private static final char UNICODE_DOUBLE_LOW_QUOTATION_MARK = '\u201e';
private static final char UNICODE_ELLIPSIS = '\u2026';
private static final char UNICODE_EURO_SIGN = '\u20ac';
private static final char UNICODE_INVERTED_EXCLAMATION_MARK = '\u00a1';
private static final char UNICODE_MULTIPLICATION_SIGN = '\u00d7';
private static final char UNICODE_PI = '\u03a0';
private static final char UNICODE_PILCROW_SIGN = '\u00b6';
private static final char UNICODE_POUND_SIGN = '\u00a3';
private static final char UNICODE_REGISTERED_SIGN = '\u00ae';
private static final char UNICODE_SQUARE_ROOT = '\u221a';
private static final char UNICODE_TRADEMARK_SIGN = '\u2122';
private static final char UNICODE_WHITE_BULLET = '\u25e6';
private static final char UNICODE_YEN_SIGN = '\u00a5';
private static final Timer mIMETimer = new Timer("GeckoInputConnection Timer");
private static int mIMEState;
private static String mIMETypeHint;
private static String mIMEActionHint;
// The blocklist is so short that ArrayList is probably cheaper than HashSet.
private final Collection<String> sFormAutoCompleteBlocklist = Arrays.asList(new String[] {
"com.adamrocker.android.input.simeji/.OpenWnnSimeji", // Simeji (bug 768108)
"com.google.android.inputmethod.japanese/.MozcService", // Google Japanese Input (bug 775850)
"com.nuance.swype.input/.IME", // Swype Beta (bug 755909)
"com.owplus.ime.openwnnplus/.OpenWnnJAJP", // OpenWnn Plus (bug 768108)
"com.swype.android.inputmethod/.SwypeInputMethod" // Swype (bug 755909)
});
private String mCurrentInputMethod;
// Is a composition active?
private int mCompositionStart = NO_COMPOSITION_STRING;
private boolean mCommittingText;
private KeyCharacterMap mKeyCharacterMap;
private Editable mEditable;
private Editable.Factory mEditableFactory;
private boolean mBatchMode;
private ExtractedTextRequest mUpdateRequest;
private final ExtractedText mUpdateExtract = new ExtractedText();
public static GeckoInputConnection create(View targetView) {
if (DEBUG)
return new DebugGeckoInputConnection(targetView);
else
return new GeckoInputConnection(targetView);
}
protected GeckoInputConnection(View targetView) {
super(targetView, true);
mEditableFactory = Editable.Factory.getInstance();
initEditable("");
mIMEState = IME_STATE_DISABLED;
mIMETypeHint = "";
mIMEActionHint = "";
}
@Override
public boolean beginBatchEdit() {
mBatchMode = true;
return true;
}
@Override
public boolean endBatchEdit() {
mBatchMode = false;
return true;
}
@Override
public boolean commitCompletion(CompletionInfo text) {
return commitText(text.getText(), 1);
}
@Override
public boolean commitText(CharSequence text, int newCursorPosition) {
if (mCommittingText)
Log.e(LOGTAG, "Please report this bug:",
new IllegalStateException("commitText, but already committing text?!"));
mCommittingText = true;
replaceText(text, newCursorPosition, false);
mCommittingText = false;
if (hasCompositionString()) {
if (DEBUG) Log.d(LOGTAG, ". . . commitText: endComposition");
endComposition();
}
return true;
}
@Override
public boolean finishComposingText() {
// finishComposingText() is sometimes called even when we are not composing text.
if (hasCompositionString()) {
if (DEBUG) Log.d(LOGTAG, ". . . finishComposingText: endComposition");
endComposition();
}
final Editable content = getEditable();
if (content != null) {
beginBatchEdit();
removeComposingSpans(content);
endBatchEdit();
}
return true;
}
@Override
public Editable getEditable() {
return mEditable;
}
@Override
public boolean performContextMenuAction(int id) {
final Editable content = getEditable();
if (content == null)
return false;
String text = content.toString();
Span selection = getSelection();
switch (id) {
case R.id.selectAll:
setSelection(0, text.length());
break;
case R.id.cut:
// Fill the clipboard
GeckoAppShell.setClipboardText(text);
// If selection is empty, we'll select everything
if (selection.length == 0)
GeckoAppShell.sendEventToGecko(
GeckoEvent.createIMEEvent(GeckoEvent.IME_SET_SELECTION, 0, text.length()));
GeckoAppShell.sendEventToGecko(
GeckoEvent.createIMEEvent(GeckoEvent.IME_DELETE_TEXT, 0, 0));
break;
case R.id.paste:
commitText(GeckoAppShell.getClipboardText(), 1);
break;
case R.id.copy:
// Copy the current selection or the empty string if nothing is selected.
String copiedText = selection.length > 0
? text.substring(selection.start, selection.end)
: "";
GeckoAppShell.setClipboardText(text);
break;
}
return true;
}
@Override
public ExtractedText getExtractedText(ExtractedTextRequest req, int flags) {
if (req == null)
return null;
final Editable content = getEditable();
if (content == null)
return null;
if ((flags & GET_EXTRACTED_TEXT_MONITOR) != 0)
mUpdateRequest = req;
Span selection = getSelection();
ExtractedText extract = new ExtractedText();
extract.flags = 0;
extract.partialStartOffset = -1;
extract.partialEndOffset = -1;
extract.selectionStart = selection.start;
extract.selectionEnd = selection.end;
extract.startOffset = 0;
extract.text = content.toString();
return extract;
}
@Override
public boolean setSelection(int start, int end) {
// Some IMEs call setSelection() with negative or stale indexes, so clamp them.
Span newSelection = Span.clamp(start, end, getEditable());
GeckoAppShell.sendEventToGecko(GeckoEvent.createIMEEvent(GeckoEvent.IME_SET_SELECTION,
newSelection.start,
newSelection.length));
return super.setSelection(newSelection.start, newSelection.end);
}
@Override
public CharSequence getTextBeforeCursor(int length, int flags) {
// Avoid underrunning text buffer.
Span selection = getSelection();
if (length > selection.start) {
length = selection.start;
}
if (length < 1) {
return "";
}
return super.getTextBeforeCursor(length, flags);
}
@Override
public CharSequence getTextAfterCursor(int length, int flags) {
// Avoid overrunning text buffer.
Span selection = getSelection();
int contentLength = getEditable().length();
if (selection.end + length > contentLength) {
length = contentLength - selection.end;
}
if (length < 1) {
return "";
}
return super.getTextAfterCursor(length, flags);
}
@Override
public boolean setComposingText(CharSequence text, int newCursorPosition) {
// setComposingText() places the given text into the editable, replacing any existing
// composing text. This method will likely be called multiple times while we are composing
// text.
// If the replacement composition string is empty and we have no active composition string
// to replace, then just ignore the empty string. Some VKBs, such as TouchPal Keyboard,
// send us empty strings at inopportune times, deleting committed text. See bug 768106.
if (text.length() == 0 && !hasCompositionString())
return true;
return super.setComposingText(text, newCursorPosition);
}
private static View getView() {
LayerController controller = GeckoApp.mAppContext.getLayerController();
return (controller == null ? null : controller.getView());
}
private Span getSelection() {
Editable content = getEditable();
int start = Selection.getSelectionStart(content);
int end = Selection.getSelectionEnd(content);
return Span.clamp(start, end, content);
}
private void replaceText(CharSequence text, int newCursorPosition, boolean composing) {
if (DEBUG) {
Log.d(LOGTAG, String.format("IME: replaceText(\"%s\", %d, %b)",
text, newCursorPosition, composing));
GeckoApp.assertOnUiThread();
}
if (text == null)
text = "";
final Editable content = getEditable();
if (content == null) {
return;
}
beginBatchEdit();
// delete composing text set previously.
int a;
int b;
Span composingSpan = getComposingSpan();
if (composingSpan != null) {
removeComposingSpans(content);
a = composingSpan.start;
b = composingSpan.end;
composingSpan = null;
} else {
Span selection = getSelection();
a = selection.start;
b = selection.end;
}
if (composing) {
Spannable sp = null;
if (!(text instanceof Spannable)) {
sp = new SpannableStringBuilder(text);
text = sp;
// Underline the active composition string.
sp.setSpan(new UnderlineSpan(), 0, sp.length(),
Spanned.SPAN_EXCLUSIVE_EXCLUSIVE | Spanned.SPAN_COMPOSING);
} else {
sp = (Spannable) text;
}
setComposingSpans(sp);
}
if (DEBUG) Log.d(LOGTAG, "Replacing from " + a + " to " + b + " with \""
+ text + "\", composing=" + composing
+ ", type=" + text.getClass().getCanonicalName());
if (DEBUG) {
LogPrinter lp = new LogPrinter(Log.VERBOSE, LOGTAG);
lp.println("Current text:");
TextUtils.dumpSpans(content, lp, " ");
lp.println("Composing text:");
TextUtils.dumpSpans(text, lp, " ");
}
// Position the cursor appropriately, so that after replacing the
// desired range of text it will be located in the correct spot.
// This allows us to deal with filters performing edits on the text
// we are providing here.
if (newCursorPosition > 0) {
newCursorPosition += b - 1;
} else {
newCursorPosition += a;
}
if (newCursorPosition < 0) newCursorPosition = 0;
if (newCursorPosition > content.length())
newCursorPosition = content.length();
Selection.setSelection(content, newCursorPosition);
content.replace(a, b, text);
if (DEBUG) {
LogPrinter lp = new LogPrinter(Log.VERBOSE, LOGTAG);
lp.println("Final text:");
TextUtils.dumpSpans(content, lp, " ");
}
endBatchEdit();
}
@Override
public boolean setComposingRegion(int start, int end) {
if (hasCompositionString()) {
if (DEBUG) Log.d(LOGTAG, ". . . setComposingRegion: endComposition");
endComposition();
}
Span newComposingRegion = Span.clamp(start, end, getEditable());
return super.setComposingRegion(newComposingRegion.start, newComposingRegion.end);
}
public String getComposingText() {
final Editable content = getEditable();
if (content == null) {
return null;
}
Span composingSpan = getComposingSpan();
if (composingSpan == null || composingSpan.length == 0) {
return "";
}
return TextUtils.substring(content, composingSpan.start, composingSpan.end);
}
public boolean onKeyDel() {
// Some IMEs don't update us on deletions
// In that case we are not updated when a composition
// is destroyed, and Bad Things happen
if (!hasCompositionString())
return false;
String text = getComposingText();
if (text != null && text.length() > 1) {
text = text.substring(0, text.length() - 1);
replaceText(text, 1, false);
return false;
}
commitText(null, 1);
return true;
}
private static InputMethodManager getInputMethodManager() {
Context context = getView().getContext();
return (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
}
protected void notifyTextChange(InputMethodManager imm, String text,
int start, int oldEnd, int newEnd) {
if (!mBatchMode) {
if (!text.contentEquals(mEditable)) {
if (DEBUG) Log.d(LOGTAG, ". . . notifyTextChange: current mEditable="
+ prettyPrintString(mEditable));
// Editable will be updated by IME event
if (!hasCompositionString())
setEditable(text);
}
}
if (mUpdateRequest == null)
return;
View v = getView();
if (imm == null) {
imm = getInputMethodManager();
if (imm == null)
return;
}
mUpdateExtract.flags = 0;
// We update from (0, oldEnd) to (0, newEnd) because some Android IMEs
// assume that updates start at zero, according to jchen.
mUpdateExtract.partialStartOffset = 0;
mUpdateExtract.partialEndOffset = oldEnd;
String updatedText = (newEnd > text.length() ? text : text.substring(0, newEnd));
int updatedTextLength = updatedText.length();
// Faster to not query for selection
mUpdateExtract.selectionStart = updatedTextLength;
mUpdateExtract.selectionEnd = updatedTextLength;
mUpdateExtract.text = updatedText;
mUpdateExtract.startOffset = 0;
imm.updateExtractedText(v, mUpdateRequest.token, mUpdateExtract);
}
protected void notifySelectionChange(InputMethodManager imm, int start, int end) {
if (!mBatchMode) {
final Editable content = getEditable();
Span newSelection = Span.clamp(start, end, content);
start = newSelection.start;
end = newSelection.end;
Span currentSelection = getSelection();
int a = currentSelection.start;
int b = currentSelection.end;
if (start != a || end != b) {
if (DEBUG) {
Log.d(LOGTAG, String.format(
". . . notifySelectionChange: current editable selection: [%d, %d)",
a, b));
}
super.setSelection(start, end);
// Check if the selection is inside composing span
Span composingSpan = getComposingSpan();
if (composingSpan != null) {
int ca = composingSpan.start;
int cb = composingSpan.end;
if (start < ca || start > cb || end < ca || end > cb) {
if (DEBUG) Log.d(LOGTAG, ". . . notifySelectionChange: removeComposingSpans");
removeComposingSpans(content);
}
}
}
}
if (imm != null && imm.isFullscreenMode()) {
View v = getView();
imm.updateSelection(v, start, end, -1, -1);
}
}
protected void resetCompositionState() {
mCompositionStart = NO_COMPOSITION_STRING;
mBatchMode = false;
mUpdateRequest = null;
}
// TextWatcher
public void onTextChanged(CharSequence s, int start, int before, int count) {
if (hasCompositionString() && mCompositionStart != start) {
// Changed range is different from the composition, need to reset the composition
endComposition();
}
CharSequence changedText = s.subSequence(start, start + count);
if (DEBUG) {
Log.d(LOGTAG, "onTextChanged: changedText=\"" + changedText + "\"");
}
if (changedText.length() == 1) {
char changedChar = changedText.charAt(0);
// Some IMEs (e.g. SwiftKey X) send a string with '\n' when Enter is pressed
// Such string cannot be handled by Gecko, so we convert it to a key press instead
if (changedChar == '\n') {
processKeyDown(KeyEvent.KEYCODE_ENTER, new KeyEvent(KeyEvent.ACTION_DOWN,
KeyEvent.KEYCODE_ENTER), false);
processKeyUp(KeyEvent.KEYCODE_ENTER, new KeyEvent(KeyEvent.ACTION_UP,
KeyEvent.KEYCODE_ENTER), false);
return;
}
// If we are committing a single character and didn't have an active composition string,
// we can send Gecko keydown/keyup events instead of composition events.
if (mCommittingText && !hasCompositionString() && sendKeyEventsToGecko(changedChar)) {
// Block this thread until all pending events are processed
GeckoAppShell.geckoEventSync();
return;
}
}
boolean startCompositionString = !hasCompositionString();
if (startCompositionString) {
if (DEBUG) Log.d(LOGTAG, ". . . onTextChanged: IME_COMPOSITION_BEGIN");
GeckoAppShell.sendEventToGecko(
GeckoEvent.createIMEEvent(GeckoEvent.IME_COMPOSITION_BEGIN, 0, 0));
mCompositionStart = start;
if (DEBUG) {
Log.d(LOGTAG, ". . . onTextChanged: IME_SET_SELECTION, start=" + start + ", len="
+ before);
}
GeckoAppShell.sendEventToGecko(
GeckoEvent.createIMEEvent(GeckoEvent.IME_SET_SELECTION, start, before));
}
sendTextToGecko(changedText, start + count);
if (DEBUG) {
Log.d(LOGTAG, ". . . onTextChanged: IME_SET_SELECTION, start=" + (start + count)
+ ", 0");
}
GeckoAppShell.sendEventToGecko(
GeckoEvent.createIMEEvent(GeckoEvent.IME_SET_SELECTION, start + count, 0));
// End composition if all characters in the word have been deleted.
// This fixes autocomplete results not appearing.
if (count == 0 || (startCompositionString && mCommittingText))
endComposition();
// Block this thread until all pending events are processed
GeckoAppShell.geckoEventSync();
}
private boolean sendKeyEventsToGecko(char inputChar) {
// Synthesize VKB key events that could plausibly generate the input character.
KeyEvent[] events = synthesizeKeyEvents(inputChar);
if (events == null) {
if (DEBUG) {
Log.d(LOGTAG, "synthesizeKeyEvents: char '" + inputChar
+ "' has no virtual key mapping");
}
return false;
}
boolean sentKeyEvents = false;
for (KeyEvent event : events) {
if (!KeyEvent.isModifierKey(event.getKeyCode())) {
if (DEBUG) {
Log.d(LOGTAG, "synthesizeKeyEvents: char '" + inputChar
+ "' -> action=" + event.getAction()
+ ", keyCode=" + event.getKeyCode()
+ ", UnicodeChar='" + (char) event.getUnicodeChar() + "'");
}
GeckoAppShell.sendEventToGecko(GeckoEvent.createKeyEvent(event));
sentKeyEvents = true;
}
}
return sentKeyEvents;
}
private KeyEvent[] synthesizeKeyEvents(char inputChar) {
// Some symbol characters produce unusual key events on Froyo and Gingerbread.
if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.GINGERBREAD_MR1) {
switch (inputChar) {
case '&':
// Some Gingerbread devices' KeyCharacterMaps return ALT+7 instead of SHIFT+7,
// but some devices like the Droid Bionic treat SHIFT+7 as '7'. So just return
// null and onTextChanged() will send "&" as a composition string instead of
// KEY_DOWN + KEY_UP event pair. This may break web content listening for '&'
// key events, but they will still receive "&" input event.
return null;
case '<':
case '>':
// We can't synthesize KeyEvents for '<' or '>' because Froyo and Gingerbread
// return incorrect shifted char codes from KeyEvent.getUnicodeChar().
// Send these characters as composition strings, not key events.
return null;
// Some symbol characters produce key events on Froyo and Gingerbread, but not
// Honeycomb and ICS. Send these characters as composition strings, not key events,
// to more closely mimic Honeycomb and ICS.
case UNICODE_BULLET:
case UNICODE_CENT_SIGN:
case UNICODE_COPYRIGHT_SIGN:
case UNICODE_DIVISION_SIGN:
case UNICODE_DOUBLE_LOW_QUOTATION_MARK:
case UNICODE_ELLIPSIS:
case UNICODE_EURO_SIGN:
case UNICODE_INVERTED_EXCLAMATION_MARK:
case UNICODE_MULTIPLICATION_SIGN:
case UNICODE_PI:
case UNICODE_PILCROW_SIGN:
case UNICODE_POUND_SIGN:
case UNICODE_REGISTERED_SIGN:
case UNICODE_SQUARE_ROOT:
case UNICODE_TRADEMARK_SIGN:
case UNICODE_WHITE_BULLET:
case UNICODE_YEN_SIGN:
return null;
default:
// Look up the character's key events in KeyCharacterMap below.
break;
}
}
if (mKeyCharacterMap == null) {
mKeyCharacterMap = KeyCharacterMap.load(KeyCharacterMap.VIRTUAL_KEYBOARD);
}
char[] inputChars = { inputChar };
return mKeyCharacterMap.getEvents(inputChars);
}
private static KeyEvent[] createKeyDownKeyUpEvents(int keyCode, int metaState) {
long now = SystemClock.uptimeMillis();
KeyEvent keyDown = new KeyEvent(now, now, KeyEvent.ACTION_DOWN, keyCode, 0, metaState);
KeyEvent keyUp = KeyEvent.changeAction(keyDown, KeyEvent.ACTION_UP);
KeyEvent[] events = { keyDown, keyUp };
return events;
}
private void endComposition() {
if (DEBUG) {
Log.d(LOGTAG, "IME: endComposition: IME_COMPOSITION_END");
GeckoApp.assertOnUiThread();
}
if (!hasCompositionString())
Log.e(LOGTAG, "Please report this bug:",
new IllegalStateException("endComposition, but not composing text?!"));
GeckoAppShell.sendEventToGecko(
GeckoEvent.createIMEEvent(GeckoEvent.IME_COMPOSITION_END, 0, 0));
mCompositionStart = NO_COMPOSITION_STRING;
}
private void sendTextToGecko(CharSequence text, int caretPos) {
if (DEBUG) {
Log.d(LOGTAG, "IME: sendTextToGecko(\"" + text + "\")");
GeckoApp.assertOnUiThread();
}
// Handle composition text styles
if (text != null && text instanceof Spanned) {
Spanned span = (Spanned) text;
int spanStart = 0, spanEnd = 0;
boolean pastSelStart = false, pastSelEnd = false;
do {
int rangeType = GeckoEvent.IME_RANGE_CONVERTEDTEXT;
int rangeStyles = 0, rangeForeColor = 0, rangeBackColor = 0;
// Find next offset where there is a style transition
spanEnd = span.nextSpanTransition(spanStart + 1, text.length(),
CharacterStyle.class);
// Empty range, continue
if (spanEnd <= spanStart)
continue;
// Get and iterate through list of span objects within range
CharacterStyle[] styles = span.getSpans(spanStart, spanEnd, CharacterStyle.class);
for (CharacterStyle style : styles) {
if (style instanceof UnderlineSpan) {
// Text should be underlined
rangeStyles |= GeckoEvent.IME_RANGE_UNDERLINE;
} else if (style instanceof ForegroundColorSpan) {
// Text should be of a different foreground color
rangeStyles |= GeckoEvent.IME_RANGE_FORECOLOR;
rangeForeColor = ((ForegroundColorSpan) style).getForegroundColor();
} else if (style instanceof BackgroundColorSpan) {
// Text should be of a different background color
rangeStyles |= GeckoEvent.IME_RANGE_BACKCOLOR;
rangeBackColor = ((BackgroundColorSpan) style).getBackgroundColor();
}
}
// Add range to array, the actual styles are
// applied when IME_SET_TEXT is sent
if (DEBUG) {
Log.d(LOGTAG, String.format(
". . . sendTextToGecko: IME_ADD_RANGE, %d, %d, %d, %d, %d, %d",
spanStart, spanEnd - spanStart, rangeType, rangeStyles, rangeForeColor,
rangeBackColor));
}
GeckoAppShell.sendEventToGecko(
GeckoEvent.createIMERangeEvent(spanStart, spanEnd - spanStart,
rangeType, rangeStyles,
rangeForeColor, rangeBackColor));
spanStart = spanEnd;
} while (spanStart < text.length());
} else {
if (DEBUG) Log.d(LOGTAG, ". . . sendTextToGecko: IME_ADD_RANGE, 0, " + text.length()
+ ", IME_RANGE_RAWINPUT, IME_RANGE_UNDERLINE)");
GeckoAppShell.sendEventToGecko(
GeckoEvent.createIMERangeEvent(0, text == null ? 0 : text.length(),
GeckoEvent.IME_RANGE_RAWINPUT,
GeckoEvent.IME_RANGE_UNDERLINE, 0, 0));
}
// Change composition (treating selection end as where the caret is)
if (DEBUG) {
Log.d(LOGTAG, ". . . sendTextToGecko: IME_SET_TEXT, IME_RANGE_CARETPOSITION, \""
+ text + "\")");
}
GeckoAppShell.sendEventToGecko(
GeckoEvent.createIMERangeEvent(caretPos, 0,
GeckoEvent.IME_RANGE_CARETPOSITION, 0, 0, 0,
text.toString()));
}
public void afterTextChanged(Editable s) {
}
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
outAttrs.inputType = InputType.TYPE_CLASS_TEXT;
outAttrs.imeOptions = EditorInfo.IME_ACTION_NONE;
outAttrs.actionLabel = null;
if (mIMEState == IME_STATE_PASSWORD)
outAttrs.inputType |= InputType.TYPE_TEXT_VARIATION_PASSWORD;
else if (mIMETypeHint.equalsIgnoreCase("url"))
outAttrs.inputType |= InputType.TYPE_TEXT_VARIATION_URI;
else if (mIMETypeHint.equalsIgnoreCase("email"))
outAttrs.inputType |= InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS;
else if (mIMETypeHint.equalsIgnoreCase("search"))
outAttrs.imeOptions = EditorInfo.IME_ACTION_SEARCH;
else if (mIMETypeHint.equalsIgnoreCase("tel"))
outAttrs.inputType = InputType.TYPE_CLASS_PHONE;
else if (mIMETypeHint.equalsIgnoreCase("number") ||
mIMETypeHint.equalsIgnoreCase("range"))
outAttrs.inputType = InputType.TYPE_CLASS_NUMBER
| InputType.TYPE_NUMBER_FLAG_SIGNED
| InputType.TYPE_NUMBER_FLAG_DECIMAL;
else if (mIMETypeHint.equalsIgnoreCase("datetime") ||
mIMETypeHint.equalsIgnoreCase("datetime-local"))
outAttrs.inputType = InputType.TYPE_CLASS_DATETIME
| InputType.TYPE_DATETIME_VARIATION_NORMAL;
else if (mIMETypeHint.equalsIgnoreCase("date"))
outAttrs.inputType = InputType.TYPE_CLASS_DATETIME
| InputType.TYPE_DATETIME_VARIATION_DATE;
else if (mIMETypeHint.equalsIgnoreCase("time"))
outAttrs.inputType = InputType.TYPE_CLASS_DATETIME
| InputType.TYPE_DATETIME_VARIATION_TIME;
if (mIMEActionHint.equalsIgnoreCase("go"))
outAttrs.imeOptions = EditorInfo.IME_ACTION_GO;
else if (mIMEActionHint.equalsIgnoreCase("done"))
outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE;
else if (mIMEActionHint.equalsIgnoreCase("next"))
outAttrs.imeOptions = EditorInfo.IME_ACTION_NEXT;
else if (mIMEActionHint.equalsIgnoreCase("search"))
outAttrs.imeOptions = EditorInfo.IME_ACTION_SEARCH;
else if (mIMEActionHint.equalsIgnoreCase("send"))
outAttrs.imeOptions = EditorInfo.IME_ACTION_SEND;
else if (mIMEActionHint != null && mIMEActionHint.length() != 0)
outAttrs.actionLabel = mIMEActionHint;
DisplayMetrics metrics = GeckoApp.mAppContext.getDisplayMetrics();
if (Math.min(metrics.widthPixels, metrics.heightPixels) > INLINE_IME_MIN_DISPLAY_SIZE) {
// prevent showing full-screen keyboard only when the screen is tall enough
// to show some reasonable amount of the page (see bug 752709)
outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_EXTRACT_UI
| EditorInfo.IME_FLAG_NO_FULLSCREEN;
}
// onCreateInputConnection() can be called during composition when input focus
// is restored from a VKB popup window (such as for entering accented characters)
// back to our IME. We want to commit our active composition string. Bug 756429
if (hasCompositionString()) {
endComposition();
}
String prevInputMethod = mCurrentInputMethod;
mCurrentInputMethod = getCurrentInputMethod();
// If the user has changed IMEs, check whether the new IME is blocklisted.
if (mCurrentInputMethod != prevInputMethod) {
FormAssistPopup popup = GeckoApp.mAppContext.mFormAssistPopup;
if (popup != null) {
boolean blocklisted = mCurrentInputMethod != null &&
sFormAutoCompleteBlocklist.contains(mCurrentInputMethod);
if (DEBUG && blocklisted) {
Log.d(LOGTAG, "FormAssist: Blocklisting \"" + mCurrentInputMethod + "\" IME");
}
popup.block(blocklisted);
}
}
resetCompositionState();
return this;
}
public boolean onKeyPreIme(int keyCode, KeyEvent event) {
switch (event.getAction()) {
case KeyEvent.ACTION_DOWN:
return processKeyDown(keyCode, event, true);
case KeyEvent.ACTION_UP:
return processKeyUp(keyCode, event, true);
case KeyEvent.ACTION_MULTIPLE:
return onKeyMultiple(keyCode, event.getRepeatCount(), event);
}
return false;
}
public boolean onKeyDown(int keyCode, KeyEvent event) {
return processKeyDown(keyCode, event, false);
}
private boolean processKeyDown(int keyCode, KeyEvent event, boolean isPreIme) {
if (DEBUG) {
Log.d(LOGTAG, "IME: processKeyDown(keyCode=" + keyCode + ", event=" + event + ", "
+ isPreIme + ")");
GeckoApp.assertOnUiThread();
}
if (keyCode > KeyEvent.getMaxKeyCode())
return false;
switch (keyCode) {
case KeyEvent.KEYCODE_MENU:
case KeyEvent.KEYCODE_BACK:
case KeyEvent.KEYCODE_VOLUME_UP:
case KeyEvent.KEYCODE_VOLUME_DOWN:
case KeyEvent.KEYCODE_SEARCH:
return false;
case KeyEvent.KEYCODE_DEL:
// See comments in GeckoInputConnection.onKeyDel
if (onKeyDel()) {
return true;
}
break;
case KeyEvent.KEYCODE_ENTER:
if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0 &&
mIMEActionHint.equalsIgnoreCase("next"))
event = new KeyEvent(event.getAction(), KeyEvent.KEYCODE_TAB);
break;
default:
break;
}
if (isPreIme && mIMEState != IME_STATE_DISABLED &&
(event.getMetaState() & KeyEvent.META_ALT_ON) != 0)
// Let active IME process pre-IME key events
return false;
View view = getView();
KeyListener keyListener = TextKeyListener.getInstance();
// KeyListener returns true if it handled the event for us.
if (mIMEState == IME_STATE_DISABLED ||
keyCode == KeyEvent.KEYCODE_ENTER ||
keyCode == KeyEvent.KEYCODE_DEL ||
keyCode == KeyEvent.KEYCODE_TAB ||
(event.getFlags() & KeyEvent.FLAG_SOFT_KEYBOARD) != 0 ||
!keyListener.onKeyDown(view, mEditable, keyCode, event)) {
// Make sure selection in Gecko is up-to-date
Span selection = getSelection();
GeckoAppShell.sendEventToGecko(GeckoEvent.createIMEEvent(GeckoEvent.IME_SET_SELECTION,
selection.start,
selection.length));
GeckoAppShell.sendEventToGecko(GeckoEvent.createKeyEvent(event));
}
return true;
}
public boolean onKeyUp(int keyCode, KeyEvent event) {
return processKeyUp(keyCode, event, false);
}
private boolean processKeyUp(int keyCode, KeyEvent event, boolean isPreIme) {
if (DEBUG) {
Log.d(LOGTAG, "IME: processKeyUp(keyCode=" + keyCode + ", event=" + event + ", "
+ isPreIme + ")");
GeckoApp.assertOnUiThread();
}
if (keyCode > KeyEvent.getMaxKeyCode())
return false;
switch (keyCode) {
case KeyEvent.KEYCODE_BACK:
case KeyEvent.KEYCODE_SEARCH:
case KeyEvent.KEYCODE_MENU:
return false;
default:
break;
}
if (isPreIme && mIMEState != IME_STATE_DISABLED &&
(event.getMetaState() & KeyEvent.META_ALT_ON) != 0)
// Let active IME process pre-IME key events
return false;
View view = getView();
KeyListener keyListener = TextKeyListener.getInstance();
if (mIMEState == IME_STATE_DISABLED ||
keyCode == KeyEvent.KEYCODE_ENTER ||
keyCode == KeyEvent.KEYCODE_DEL ||
(event.getFlags() & KeyEvent.FLAG_SOFT_KEYBOARD) != 0 ||
!keyListener.onKeyUp(view, mEditable, keyCode, event)) {
GeckoAppShell.sendEventToGecko(GeckoEvent.createKeyEvent(event));
}
return true;
}
public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) {
GeckoAppShell.sendEventToGecko(GeckoEvent.createKeyEvent(event));
return true;
}
public boolean onKeyLongPress(int keyCode, KeyEvent event) {
View v = getView();
switch (keyCode) {
case KeyEvent.KEYCODE_MENU:
InputMethodManager imm = getInputMethodManager();
imm.toggleSoftInputFromWindow(v.getWindowToken(),
InputMethodManager.SHOW_FORCED, 0);
return true;
default:
break;
}
return false;
}
public boolean isIMEEnabled() {
// make sure this picks up PASSWORD and PLUGIN states as well
return mIMEState != IME_STATE_DISABLED;
}
public void notifyIME(final int type, final int state) {
postToUiThread(new Runnable() {
public void run() {
View v = getView();
if (v == null)
return;
switch (type) {
case NOTIFY_IME_RESETINPUTSTATE:
if (DEBUG) Log.d(LOGTAG, ". . . notifyIME: reset");
// Gecko just cancelled the current composition from underneath us,
// so abandon our active composition string WITHOUT committing it!
resetCompositionState();
// Don't use IMEStateUpdater for reset.
// Because IME may not work showSoftInput()
// after calling restartInput() immediately.
// So we have to call showSoftInput() delay.
InputMethodManager imm = getInputMethodManager();
if (imm == null) {
// no way to reset IME status directly
IMEStateUpdater.resetIME();
} else {
imm.restartInput(v);
}
// keep current enabled state
IMEStateUpdater.enableIME();
break;
case NOTIFY_IME_CANCELCOMPOSITION:
if (DEBUG) Log.d(LOGTAG, ". . . notifyIME: cancel");
IMEStateUpdater.resetIME();
break;
case NOTIFY_IME_FOCUSCHANGE:
if (DEBUG) Log.d(LOGTAG, ". . . notifyIME: focus");
IMEStateUpdater.resetIME();
break;
}
}
});
}
public void notifyIMEEnabled(final int state, final String typeHint, final String actionHint) {
postToUiThread(new Runnable() {
public void run() {
View v = getView();
if (v == null)
return;
/* When IME is 'disabled', IME processing is disabled.
In addition, the IME UI is hidden */
mIMEState = state;
mIMETypeHint = typeHint;
mIMEActionHint = actionHint;
IMEStateUpdater.enableIME();
}
});
}
public final void notifyIMEChange(final String text, final int start, final int end,
final int newEnd) {
postToUiThread(new Runnable() {
public void run() {
InputMethodManager imm = getInputMethodManager();
if (imm == null)
return;
if (newEnd < 0)
notifySelectionChange(imm, start, end);
else
notifyTextChange(imm, text, start, end, newEnd);
}
});
}
/* Delay updating IME states (see bug 573800) */
private static final class IMEStateUpdater extends TimerTask {
private static IMEStateUpdater instance;
private boolean mEnable;
private boolean mReset;
private static IMEStateUpdater getInstance() {
if (instance == null) {
instance = new IMEStateUpdater();
mIMETimer.schedule(instance, 200);
}
return instance;
}
public static synchronized void enableIME() {
getInstance().mEnable = true;
}
public static synchronized void resetIME() {
getInstance().mReset = true;
}
public void run() {
if (DEBUG) Log.d(LOGTAG, "IME: run()");
synchronized (IMEStateUpdater.class) {
instance = null;
}
// TimerTask.run() is running on a random background thread, so post to UI thread.
postToUiThread(new Runnable() {
public void run() {
final View v = getView();
if (v == null)
return;
final InputMethodManager imm = getInputMethodManager();
if (imm == null)
return;
if (mReset)
imm.restartInput(v);
if (!mEnable)
return;
if (mIMEState != IME_STATE_DISABLED) {
imm.showSoftInput(v, 0);
} else if (imm.isActive(v)) {
imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
}
}
});
}
}
private void setEditable(String contents) {
mEditable.removeSpan(this);
mEditable.replace(0, mEditable.length(), contents);
mEditable.setSpan(this, 0, contents.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
Selection.setSelection(mEditable, contents.length());
}
private void initEditable(String contents) {
mEditable = mEditableFactory.newEditable(contents);
mEditable.setSpan(this, 0, contents.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
Selection.setSelection(mEditable, contents.length());
}
protected final boolean hasCompositionString() {
return mCompositionStart != NO_COMPOSITION_STRING;
}
private Span getComposingSpan() {
Editable content = getEditable();
int start = getComposingSpanStart(content);
int end = getComposingSpanEnd(content);
// Does the editable have a composing span?
if (start < 0 || end < 0) {
if (start != -1 || end != -1) {
throw new IndexOutOfBoundsException("Bad composing span [" + start + "," + end
+ "), contentLength=" + content.length());
}
return null;
}
return new Span(start, end, content);
}
private String getCurrentInputMethod() {
return Secure.getString(GeckoApp.mAppContext.getContentResolver(),
Secure.DEFAULT_INPUT_METHOD);
}
private static String prettyPrintString(CharSequence s) {
// Quote string and replace newlines with CR arrows.
return "\"" + s.toString().replace('\n', UNICODE_CRARR) + "\"";
}
private static void postToUiThread(Runnable runnable) {
// postToUiThread() is called by the Gecko and TimerTask threads.
// The UI thread does not need to post Runnables to itself.
GeckoApp.mAppContext.mMainHandler.post(runnable);
}
private static final class Span {
public final int start;
public final int end;
public final int length;
public static Span clamp(int start, int end, Editable content) {
return new Span(start, end, content);
}
private Span(int a, int b, Editable content) {
if (a > b) {
int tmp = a;
a = b;
b = tmp;
}
final int contentLength = content.length();
if (a < 0) {
a = 0;
} else if (a > contentLength) {
a = contentLength;
}
if (b < 0) {
b = 0;
} else if (b > contentLength) {
b = contentLength;
}
start = a;
end = b;
length = end - start;
}
}
private static final class DebugGeckoInputConnection extends GeckoInputConnection {
public DebugGeckoInputConnection(View targetView) {
super(targetView);
GeckoApp.assertOnUiThread();
}
@Override
public boolean beginBatchEdit() {
Log.d(LOGTAG, "IME: beginBatchEdit");
GeckoApp.assertOnUiThread();
return super.beginBatchEdit();
}
@Override
public boolean endBatchEdit() {
Log.d(LOGTAG, "IME: endBatchEdit");
GeckoApp.assertOnUiThread();
return super.endBatchEdit();
}
@Override
public boolean commitCompletion(CompletionInfo text) {
Log.d(LOGTAG, "IME: commitCompletion");
GeckoApp.assertOnUiThread();
return super.commitCompletion(text);
}
@Override
public boolean commitText(CharSequence text, int newCursorPosition) {
Log.d(LOGTAG, String.format("IME: commitText(\"%s\", %d)", text, newCursorPosition));
GeckoApp.assertOnUiThread();
return super.commitText(text, newCursorPosition);
}
@Override
public boolean deleteSurroundingText(int leftLength, int rightLength) {
Log.d(LOGTAG, "IME: deleteSurroundingText(leftLen=" + leftLength + ", rightLen="
+ rightLength + ")");
GeckoApp.assertOnUiThread();
return super.deleteSurroundingText(leftLength, rightLength);
}
@Override
public boolean finishComposingText() {
Log.d(LOGTAG, "IME: finishComposingText");
GeckoApp.assertOnUiThread();
return super.finishComposingText();
}
@Override
public Editable getEditable() {
Editable editable = super.getEditable();
Log.d(LOGTAG, "IME: getEditable -> " + prettyPrintString(editable));
GeckoApp.assertOnUiThread();
return editable;
}
@Override
public boolean performContextMenuAction(int id) {
Log.d(LOGTAG, "IME: performContextMenuAction");
GeckoApp.assertOnUiThread();
return super.performContextMenuAction(id);
}
@Override
public ExtractedText getExtractedText(ExtractedTextRequest req, int flags) {
Log.d(LOGTAG, "IME: getExtractedText");
GeckoApp.assertOnUiThread();
ExtractedText extract = super.getExtractedText(req, flags);
if (extract != null)
Log.d(LOGTAG, String.format(
". . . getExtractedText: extract.text=\"%s\", selStart=%d, selEnd=%d",
extract.text, extract.selectionStart, extract.selectionEnd));
return extract;
}
@Override
public CharSequence getTextAfterCursor(int length, int flags) {
Log.d(LOGTAG, "IME: getTextAfterCursor(length=" + length + ", flags=" + flags + ")");
GeckoApp.assertOnUiThread();
CharSequence s = super.getTextAfterCursor(length, flags);
Log.d(LOGTAG, ". . . getTextAfterCursor returns \"" + s + "\"");
return s;
}
@Override
public CharSequence getTextBeforeCursor(int length, int flags) {
Log.d(LOGTAG, "IME: getTextBeforeCursor");
GeckoApp.assertOnUiThread();
CharSequence s = super.getTextBeforeCursor(length, flags);
Log.d(LOGTAG, ". . . getTextBeforeCursor returns \"" + s + "\"");
return s;
}
@Override
public boolean setComposingText(CharSequence text, int newCursorPosition) {
Log.d(LOGTAG, String.format("IME: setComposingText(\"%s\", %d)", text, newCursorPosition));
GeckoApp.assertOnUiThread();
return super.setComposingText(text, newCursorPosition);
}
@Override
public boolean setComposingRegion(int start, int end) {
Log.d(LOGTAG, "IME: setComposingRegion(start=" + start + ", end=" + end + ")");
GeckoApp.assertOnUiThread();
return super.setComposingRegion(start, end);
}
@Override
public boolean setSelection(int start, int end) {
Log.d(LOGTAG, "IME: setSelection(start=" + start + ", end=" + end + ")");
GeckoApp.assertOnUiThread();
return super.setSelection(start, end);
}
@Override
public String getComposingText() {
Log.d(LOGTAG, "IME: getComposingText");
GeckoApp.assertOnUiThread();
String s = super.getComposingText();
Log.d(LOGTAG, ". . . getComposingText: Composing text = \"" + s + "\"");
return s;
}
@Override
public boolean onKeyDel() {
Log.d(LOGTAG, "IME: onKeyDel");
GeckoApp.assertOnUiThread();
return super.onKeyDel();
}
@Override
protected void notifyTextChange(InputMethodManager imm, String text,
int start, int oldEnd, int newEnd) {
// notifyTextChange() call is posted to UI thread from notifyIMEChange().
GeckoApp.assertOnUiThread();
String msg = String.format("IME: >notifyTextChange(%s, start=%d, oldEnd=%d, newEnd=%d)",
prettyPrintString(text), start, oldEnd, newEnd);
Log.d(LOGTAG, msg);
if (start < 0 || oldEnd < start || newEnd < start || newEnd > text.length()) {
throw new IllegalArgumentException("BUG! " + msg);
}
super.notifyTextChange(imm, text, start, oldEnd, newEnd);
}
@Override
protected void notifySelectionChange(InputMethodManager imm, int start, int end) {
// notifySelectionChange() call is posted to UI thread from notifyIMEChange().
GeckoApp.assertOnUiThread();
Log.d(LOGTAG, String.format("IME: >notifySelectionChange(start=%d, end=%d)", start, end));
super.notifySelectionChange(imm, start, end);
}
@Override
protected void resetCompositionState() {
Log.d(LOGTAG, "IME: resetCompositionState");
GeckoApp.assertOnUiThread();
if (hasCompositionString()) {
Log.d(LOGTAG, "resetCompositionState() is abandoning an active composition string");
}
super.resetCompositionState();
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
Log.d(LOGTAG, String.format("IME: onTextChanged(\"%s\" start=%d, before=%d, count=%d)",
s, start, before, count));
GeckoApp.assertOnUiThread();
super.onTextChanged(s, start, before, count);
}
@Override
public void afterTextChanged(Editable s) {
Log.d(LOGTAG, "IME: afterTextChanged(\"" + s + "\")");
GeckoApp.assertOnUiThread();
super.afterTextChanged(s);
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
Log.d(LOGTAG, String.format("IME: beforeTextChanged(\"%s\", start=%d, count=%d, after=%d)",
s, start, count, after));
GeckoApp.assertOnUiThread();
super.beforeTextChanged(s, start, count, after);
}
@Override
public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
Log.d(LOGTAG, "IME: onCreateInputConnection called");
GeckoApp.assertOnUiThread();
return super.onCreateInputConnection(outAttrs);
}
@Override
public boolean onKeyPreIme(int keyCode, KeyEvent event) {
Log.d(LOGTAG, "IME: onKeyPreIme(keyCode=" + keyCode + ", event=" + event + ")");
GeckoApp.assertOnUiThread();
return super.onKeyPreIme(keyCode, event);
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
Log.d(LOGTAG, "IME: onKeyDown(keyCode=" + keyCode + ", event=" + event + ")");
GeckoApp.assertOnUiThread();
return super.onKeyDown(keyCode, event);
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
Log.d(LOGTAG, "IME: onKeyUp(keyCode=" + keyCode + ", event=" + event + ")");
GeckoApp.assertOnUiThread();
return super.onKeyUp(keyCode, event);
}
@Override
public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) {
Log.d(LOGTAG, "IME: onKeyMultiple(keyCode=" + keyCode + ", repeatCount=" + repeatCount
+ ", event=" + event + ")");
GeckoApp.assertOnUiThread();
return super.onKeyMultiple(keyCode, repeatCount, event);
}
@Override
public boolean onKeyLongPress(int keyCode, KeyEvent event) {
Log.d(LOGTAG, "IME: onKeyLongPress(keyCode=" + keyCode + ", event=" + event + ")");
GeckoApp.assertOnUiThread();
return super.onKeyLongPress(keyCode, event);
}
@Override
public void notifyIME(int type, int state) {
Log.d(LOGTAG, String.format("IME: >notifyIME(type=%d, state=%d)", type, state));
GeckoApp.assertOnGeckoThread();
super.notifyIME(type, state);
}
}
}
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