| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.systemui.statusbar.tablet; |
| |
| import android.content.Context; |
| import android.os.IBinder; |
| import android.provider.Settings; |
| import android.util.AttributeSet; |
| import android.view.View; |
| import android.view.inputmethod.InputMethodInfo; |
| import android.view.inputmethod.InputMethodManager; |
| import android.view.inputmethod.InputMethodSubtype; |
| import android.widget.ImageView; |
| |
| import com.android.systemui.R; |
| |
| import java.util.List; |
| |
| public class InputMethodButton extends ImageView { |
| |
| private static final String TAG = "StatusBar/InputMethodButton"; |
| private static final boolean DEBUG = false; |
| |
| // These values are defined in Settings application. |
| private static final int ID_IME_BUTTON_VISIBILITY_AUTO = 0; |
| private static final int ID_IME_BUTTON_VISIBILITY_ALWAYS_SHOW = 1; |
| private static final int ID_IME_BUTTON_VISIBILITY_ALWAYS_HIDE = 2; |
| |
| // other services we wish to talk to |
| private final InputMethodManager mImm; |
| private final int mId; |
| private ImageView mIcon; |
| private IBinder mToken; |
| private boolean mShowButton = false; |
| private boolean mScreenLocked = false; |
| private boolean mHardKeyboardAvailable; |
| |
| // Please refer to InputMethodManagerService.TAG_TRY_SUPPRESSING_IME_SWITCHER |
| private static final String TAG_TRY_SUPPRESSING_IME_SWITCHER = "TrySuppressingImeSwitcher"; |
| |
| public InputMethodButton(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| |
| // Resource Id of the input method button. This id is defined in status_bar.xml |
| mId = getId(); |
| // IME hookup |
| mImm = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE); |
| } |
| |
| @Override |
| protected void onAttachedToWindow() { |
| mIcon = (ImageView) findViewById(mId); |
| |
| refreshStatusIcon(); |
| } |
| |
| // Refer to InputMethodManagerService.needsToShowImeSwitchOngoingNotification() |
| private boolean needsToShowIMEButtonWhenVisibilityAuto() { |
| List<InputMethodInfo> imis = mImm.getEnabledInputMethodList(); |
| final int N = imis.size(); |
| if (N > 2) return true; |
| if (N < 1) return false; |
| int nonAuxCount = 0; |
| int auxCount = 0; |
| InputMethodSubtype nonAuxSubtype = null; |
| InputMethodSubtype auxSubtype = null; |
| for(int i = 0; i < N; ++i) { |
| final InputMethodInfo imi = imis.get(i); |
| final List<InputMethodSubtype> subtypes = mImm.getEnabledInputMethodSubtypeList( |
| imi, true); |
| final int subtypeCount = subtypes.size(); |
| if (subtypeCount == 0) { |
| ++nonAuxCount; |
| } else { |
| for (int j = 0; j < subtypeCount; ++j) { |
| final InputMethodSubtype subtype = subtypes.get(j); |
| if (!subtype.isAuxiliary()) { |
| ++nonAuxCount; |
| nonAuxSubtype = subtype; |
| } else { |
| ++auxCount; |
| auxSubtype = subtype; |
| } |
| } |
| } |
| } |
| if (nonAuxCount > 1 || auxCount > 1) { |
| return true; |
| } else if (nonAuxCount == 1 && auxCount == 1) { |
| if (nonAuxSubtype != null && auxSubtype != null |
| && (nonAuxSubtype.getLocale().equals(auxSubtype.getLocale()) |
| || auxSubtype.overridesImplicitlyEnabledSubtype() |
| || nonAuxSubtype.overridesImplicitlyEnabledSubtype()) |
| && nonAuxSubtype.containsExtraValueKey(TAG_TRY_SUPPRESSING_IME_SWITCHER)) { |
| return false; |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| private boolean needsToShowIMEButton() { |
| if (!mShowButton || mScreenLocked) return false; |
| |
| if (mHardKeyboardAvailable) { |
| return true; |
| } |
| |
| final int visibility = loadInputMethodSelectorVisibility(); |
| switch (visibility) { |
| case ID_IME_BUTTON_VISIBILITY_AUTO: |
| return needsToShowIMEButtonWhenVisibilityAuto(); |
| case ID_IME_BUTTON_VISIBILITY_ALWAYS_SHOW: |
| return true; |
| case ID_IME_BUTTON_VISIBILITY_ALWAYS_HIDE: |
| return false; |
| } |
| return false; |
| } |
| |
| private void refreshStatusIcon() { |
| if (mIcon == null) { |
| return; |
| } |
| if (!needsToShowIMEButton()) { |
| setVisibility(View.GONE); |
| return; |
| } else { |
| setVisibility(View.VISIBLE); |
| } |
| mIcon.setImageResource(R.drawable.ic_sysbar_ime); |
| } |
| |
| private int loadInputMethodSelectorVisibility() { |
| return Settings.Secure.getInt(getContext().getContentResolver(), |
| Settings.Secure.INPUT_METHOD_SELECTOR_VISIBILITY, ID_IME_BUTTON_VISIBILITY_AUTO); |
| } |
| |
| public void setIconImage(int resId) { |
| if (mIcon != null) { |
| mIcon.setImageResource(resId); |
| } |
| } |
| |
| public void setImeWindowStatus(IBinder token, boolean showButton) { |
| mToken = token; |
| mShowButton = showButton; |
| refreshStatusIcon(); |
| } |
| |
| public void setHardKeyboardStatus(boolean available) { |
| if (mHardKeyboardAvailable != available) { |
| mHardKeyboardAvailable = available; |
| refreshStatusIcon(); |
| } |
| } |
| |
| public void setScreenLocked(boolean locked) { |
| mScreenLocked = locked; |
| refreshStatusIcon(); |
| } |
| } |