/*
* Copyright (C) 2008-2009 Google Inc.
*
* 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.inputmethod.latin;
import android.content.Context;
import android.content.res.Resources;
import android.content.res.XmlResourceParser;
import android.graphics.drawable.Drawable;
import android.inputmethodservice.Keyboard;
import android.view.inputmethod.EditorInfo;
public class LatinKeyboard extends Keyboard {
private Drawable mShiftLockIcon;
private Drawable mShiftLockPreviewIcon;
private Drawable mOldShiftIcon;
private Drawable mOldShiftPreviewIcon;
private Key mShiftKey;
private Key mEnterKey;
private static final int SHIFT_OFF = 0;
private static final int SHIFT_ON = 1;
private static final int SHIFT_LOCKED = 2;
private int mShiftState = SHIFT_OFF;
public LatinKeyboard(Context context, int xmlLayoutResId) {
this(context, xmlLayoutResId, 0);
}
public LatinKeyboard(Context context, int xmlLayoutResId, int mode) {
super(context, xmlLayoutResId, mode);
mShiftLockIcon = context.getResources()
.getDrawable(R.drawable.sym_keyboard_shift_locked);
mShiftLockPreviewIcon = context.getResources()
.getDrawable(R.drawable.sym_keyboard_feedback_shift_locked);
mShiftLockPreviewIcon.setBounds(0, 0,
mShiftLockPreviewIcon.getIntrinsicWidth(),
mShiftLockPreviewIcon.getIntrinsicHeight());
}
public LatinKeyboard(Context context, int layoutTemplateResId,
CharSequence characters, int columns, int horizontalPadding) {
super(context, layoutTemplateResId, characters, columns, horizontalPadding);
}
@Override
protected Key createKeyFromXml(Resources res, Row parent, int x, int y,
XmlResourceParser parser) {
Key key = new LatinKey(res, parent, x, y, parser);
if (key.codes[0] == 10) {
mEnterKey = key;
}
return key;
}
void setImeOptions(Resources res, int mode, int options) {
if (mEnterKey != null) {
// Reset some of the rarely used attributes.
mEnterKey.popupCharacters = null;
mEnterKey.popupResId = 0;
mEnterKey.text = null;
switch (options&(EditorInfo.IME_MASK_ACTION|EditorInfo.IME_FLAG_NO_ENTER_ACTION)) {
case EditorInfo.IME_ACTION_GO:
mEnterKey.iconPreview = null;
mEnterKey.icon = null;
mEnterKey.label = res.getText(R.string.label_go_key);
break;
case EditorInfo.IME_ACTION_NEXT:
mEnterKey.iconPreview = null;
mEnterKey.icon = null;
mEnterKey.label = res.getText(R.string.label_next_key);
break;
case EditorInfo.IME_ACTION_DONE:
mEnterKey.iconPreview = null;
mEnterKey.icon = null;
mEnterKey.label = res.getText(R.string.label_done_key);
break;
case EditorInfo.IME_ACTION_SEARCH:
mEnterKey.iconPreview = res.getDrawable(
R.drawable.sym_keyboard_feedback_search);
mEnterKey.icon = res.getDrawable(
R.drawable.sym_keyboard_search);
mEnterKey.label = null;
break;
case EditorInfo.IME_ACTION_SEND:
mEnterKey.iconPreview = null;
mEnterKey.icon = null;
mEnterKey.label = res.getText(R.string.label_send_key);
break;
default:
if (mode == KeyboardSwitcher.MODE_IM) {
mEnterKey.icon = null;
mEnterKey.iconPreview = null;
mEnterKey.label = ":-)";
mEnterKey.text = ":-) ";
mEnterKey.popupResId = R.xml.popup_smileys;
} else {
mEnterKey.iconPreview = res.getDrawable(
R.drawable.sym_keyboard_feedback_return);
mEnterKey.icon = res.getDrawable(
R.drawable.sym_keyboard_return);
mEnterKey.label = null;
}
break;
}
// Set the initial size of the preview icon
if (mEnterKey.iconPreview != null) {
mEnterKey.iconPreview.setBounds(0, 0,
mEnterKey.iconPreview.getIntrinsicWidth(),
mEnterKey.iconPreview.getIntrinsicHeight());
}
}
}
void enableShiftLock() {
int index = getShiftKeyIndex();
if (index >= 0) {
mShiftKey = getKeys().get(index);
if (mShiftKey instanceof LatinKey) {
((LatinKey)mShiftKey).enableShiftLock();
}
mOldShiftIcon = mShiftKey.icon;
mOldShiftPreviewIcon = mShiftKey.iconPreview;
}
}
void setShiftLocked(boolean shiftLocked) {
if (mShiftKey != null) {
if (shiftLocked) {
mShiftKey.on = true;
mShiftKey.icon = mShiftLockIcon;
mShiftState = SHIFT_LOCKED;
} else {
mShiftKey.on = false;
mShiftKey.icon = mShiftLockIcon;
mShiftState = SHIFT_ON;
}
}
}
boolean isShiftLocked() {
return mShiftState == SHIFT_LOCKED;
}
@Override
public boolean setShifted(boolean shiftState) {
boolean shiftChanged = false;
if (mShiftKey != null) {
if (shiftState == false) {
shiftChanged = mShiftState != SHIFT_OFF;
mShiftState = SHIFT_OFF;
mShiftKey.on = false;
mShiftKey.icon = mOldShiftIcon;
} else {
if (mShiftState == SHIFT_OFF) {
shiftChanged = mShiftState == SHIFT_OFF;
mShiftState = SHIFT_ON;
mShiftKey.icon = mShiftLockIcon;
}
}
} else {
return super.setShifted(shiftState);
}
return shiftChanged;
}
@Override
public boolean isShifted() {
if (mShiftKey != null) {
return mShiftState != SHIFT_OFF;
} else {
return super.isShifted();
}
}
static class LatinKey extends Keyboard.Key {
private boolean mShiftLockEnabled;
public LatinKey(Resources res, Keyboard.Row parent, int x, int y,
XmlResourceParser parser) {
super(res, parent, x, y, parser);
if (popupCharacters != null && popupCharacters.length() == 0) {
// If there is a keyboard with no keys specified in popupCharacters
popupResId = 0;
}
}
void enableShiftLock() {
mShiftLockEnabled = true;
}
@Override
public void onReleased(boolean inside) {
if (!mShiftLockEnabled) {
super.onReleased(inside);
} else {
pressed = !pressed;
}
}
/**
* Overriding this method so that we can reduce the target area for certain keys.
*/
@Override
public boolean isInside(int x, int y) {
if ((edgeFlags & Keyboard.EDGE_BOTTOM) != 0 ||
codes[0] == KEYCODE_SHIFT ||
codes[0] == KEYCODE_DELETE) {
y -= height / 10;
}
if (codes[0] == KEYCODE_SHIFT) x += width / 6;
if (codes[0] == KEYCODE_DELETE) x -= width / 6;
return super.isInside(x, y);
}
}
}
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