1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.inputmethod.keyboard; 18 19 import android.content.Context; 20 import android.content.res.Resources; 21 import android.util.AttributeSet; 22 import android.view.Gravity; 23 import android.view.View; 24 import android.widget.PopupWindow; 25 26 import com.android.inputmethod.keyboard.PointerTracker.DrawingProxy; 27 import com.android.inputmethod.keyboard.PointerTracker.TimerProxy; 28 import com.android.inputmethod.latin.R; 29 30 /** 31 * A view that renders a virtual {@link MoreKeysKeyboard}. It handles rendering of keys and 32 * detecting key presses and touch movements. 33 */ 34 public class MoreKeysKeyboardView extends KeyboardView implements MoreKeysPanel { 35 private final int[] mCoordinates = new int[2]; 36 37 private final KeyDetector mKeyDetector; 38 39 private Controller mController; 40 private KeyboardActionListener mListener; 41 private int mOriginX; 42 private int mOriginY; 43 44 private static final TimerProxy EMPTY_TIMER_PROXY = new TimerProxy.Adapter(); 45 46 private final KeyboardActionListener mMoreKeysKeyboardListener = 47 new KeyboardActionListener.Adapter() { 48 @Override 49 public void onCodeInput(int primaryCode, int x, int y) { 50 // Because a more keys keyboard doesn't need proximity characters correction, we don't 51 // send touch event coordinates. 52 mListener.onCodeInput(primaryCode, NOT_A_TOUCH_COORDINATE, NOT_A_TOUCH_COORDINATE); 53 } 54 55 @Override 56 public void onTextInput(CharSequence text) { 57 mListener.onTextInput(text); 58 } 59 60 @Override 61 public void onCancelInput() { 62 mListener.onCancelInput(); 63 } 64 65 @Override 66 public void onPressKey(int primaryCode) { 67 mListener.onPressKey(primaryCode); 68 } 69 70 @Override 71 public void onReleaseKey(int primaryCode, boolean withSliding) { 72 mListener.onReleaseKey(primaryCode, withSliding); 73 } 74 }; 75 76 public MoreKeysKeyboardView(Context context, AttributeSet attrs) { 77 this(context, attrs, R.attr.moreKeysKeyboardViewStyle); 78 } 79 80 public MoreKeysKeyboardView(Context context, AttributeSet attrs, int defStyle) { 81 super(context, attrs, defStyle); 82 83 final Resources res = context.getResources(); 84 mKeyDetector = new MoreKeysDetector( 85 res.getDimension(R.dimen.more_keys_keyboard_slide_allowance)); 86 setKeyPreviewPopupEnabled(false, 0); 87 } 88 89 @Override 90 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 91 final Keyboard keyboard = getKeyboard(); 92 if (keyboard != null) { 93 final int width = keyboard.mOccupiedWidth + getPaddingLeft() + getPaddingRight(); 94 final int height = keyboard.mOccupiedHeight + getPaddingTop() + getPaddingBottom(); 95 setMeasuredDimension(width, height); 96 } else { 97 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 98 } 99 } 100 101 @Override 102 public void setKeyboard(Keyboard keyboard) { 103 super.setKeyboard(keyboard); 104 mKeyDetector.setKeyboard(keyboard, -getPaddingLeft(), 105 -getPaddingTop() + mVerticalCorrection); 106 } 107 108 @Override 109 public KeyDetector getKeyDetector() { 110 return mKeyDetector; 111 } 112 113 @Override 114 public KeyboardActionListener getKeyboardActionListener() { 115 return mMoreKeysKeyboardListener; 116 } 117 118 @Override 119 public DrawingProxy getDrawingProxy() { 120 return this; 121 } 122 123 @Override 124 public TimerProxy getTimerProxy() { 125 return EMPTY_TIMER_PROXY; 126 } 127 128 @Override 129 public void setKeyPreviewPopupEnabled(boolean previewEnabled, int delay) { 130 // More keys keyboard needs no pop-up key preview displayed, so we pass always false with a 131 // delay of 0. The delay does not matter actually since the popup is not shown anyway. 132 super.setKeyPreviewPopupEnabled(false, 0); 133 } 134 135 @Override 136 public void showMoreKeysPanel(View parentView, Controller controller, int pointX, int pointY, 137 PopupWindow window, KeyboardActionListener listener) { 138 mController = controller; 139 mListener = listener; 140 final View container = (View)getParent(); 141 final MoreKeysKeyboard pane = (MoreKeysKeyboard)getKeyboard(); 142 final int defaultCoordX = pane.getDefaultCoordX(); 143 // The coordinates of panel's left-top corner in parentView's coordinate system. 144 final int x = pointX - defaultCoordX - container.getPaddingLeft(); 145 final int y = pointY - container.getMeasuredHeight() + container.getPaddingBottom(); 146 147 window.setContentView(container); 148 window.setWidth(container.getMeasuredWidth()); 149 window.setHeight(container.getMeasuredHeight()); 150 parentView.getLocationInWindow(mCoordinates); 151 window.showAtLocation(parentView, Gravity.NO_GRAVITY, 152 x + mCoordinates[0], y + mCoordinates[1]); 153 154 mOriginX = x + container.getPaddingLeft(); 155 mOriginY = y + container.getPaddingTop(); 156 } 157 158 private boolean mIsDismissing; 159 160 @Override 161 public boolean dismissMoreKeysPanel() { 162 if (mIsDismissing || mController == null) return false; 163 mIsDismissing = true; 164 final boolean dismissed = mController.dismissMoreKeysPanel(); 165 mIsDismissing = false; 166 return dismissed; 167 } 168 169 @Override 170 public int translateX(int x) { 171 return x - mOriginX; 172 } 173 174 @Override 175 public int translateY(int y) { 176 return y - mOriginY; 177 } 178 } 179
