1 /* 2 * Copyright (C) 2008 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.systemui.statusbar; 18 19 import android.app.Notification; 20 import android.content.Context; 21 import android.content.pm.PackageManager; 22 import android.content.res.Resources; 23 import android.graphics.drawable.Drawable; 24 import android.graphics.Canvas; 25 import android.graphics.Paint; 26 import android.graphics.Rect; 27 import android.os.UserHandle; 28 import android.text.TextUtils; 29 import android.util.AttributeSet; 30 import android.util.Slog; 31 import android.util.Log; 32 import android.view.ViewDebug; 33 import android.view.accessibility.AccessibilityEvent; 34 import android.widget.ImageView; 35 36 import java.text.NumberFormat; 37 38 import com.android.internal.statusbar.StatusBarIcon; 39 40 import com.android.systemui.R; 41 42 public class StatusBarIconView extends AnimatedImageView { 43 private static final String TAG = "StatusBarIconView"; 44 45 private StatusBarIcon mIcon; 46 @ViewDebug.ExportedProperty private String mSlot; 47 private Drawable mNumberBackground; 48 private Paint mNumberPain; 49 private int mNumberX; 50 private int mNumberY; 51 private String mNumberText; 52 private Notification mNotification; 53 StatusBarIconView(Context context, String slot, Notification notification)54 public StatusBarIconView(Context context, String slot, Notification notification) { 55 super(context); 56 final Resources res = context.getResources(); 57 mSlot = slot; 58 mNumberPain = new Paint(); 59 mNumberPain.setTextAlign(Paint.Align.CENTER); 60 mNumberPain.setColor(res.getColor(R.drawable.notification_number_text_color)); 61 mNumberPain.setAntiAlias(true); 62 mNotification = notification; 63 setContentDescription(notification); 64 65 // We do not resize and scale system icons (on the right), only notification icons (on the 66 // left). 67 if (notification != null) { 68 final int outerBounds = res.getDimensionPixelSize(R.dimen.status_bar_icon_size); 69 final int imageBounds = res.getDimensionPixelSize(R.dimen.status_bar_icon_drawing_size); 70 final float scale = (float)imageBounds / (float)outerBounds; 71 setScaleX(scale); 72 setScaleY(scale); 73 final float alpha = res.getFraction(R.dimen.status_bar_icon_drawing_alpha, 1, 1); 74 setAlpha(alpha); 75 } 76 77 setScaleType(ImageView.ScaleType.CENTER); 78 } 79 StatusBarIconView(Context context, AttributeSet attrs)80 public StatusBarIconView(Context context, AttributeSet attrs) { 81 super(context, attrs); 82 final Resources res = context.getResources(); 83 final int outerBounds = res.getDimensionPixelSize(R.dimen.status_bar_icon_size); 84 final int imageBounds = res.getDimensionPixelSize(R.dimen.status_bar_icon_drawing_size); 85 final float scale = (float)imageBounds / (float)outerBounds; 86 setScaleX(scale); 87 setScaleY(scale); 88 final float alpha = res.getFraction(R.dimen.status_bar_icon_drawing_alpha, 1, 1); 89 setAlpha(alpha); 90 } 91 streq(String a, String b)92 private static boolean streq(String a, String b) { 93 if (a == b) { 94 return true; 95 } 96 if (a == null && b != null) { 97 return false; 98 } 99 if (a != null && b == null) { 100 return false; 101 } 102 return a.equals(b); 103 } 104 105 /** 106 * Returns whether the set succeeded. 107 */ set(StatusBarIcon icon)108 public boolean set(StatusBarIcon icon) { 109 final boolean iconEquals = mIcon != null 110 && streq(mIcon.iconPackage, icon.iconPackage) 111 && mIcon.iconId == icon.iconId; 112 final boolean levelEquals = iconEquals 113 && mIcon.iconLevel == icon.iconLevel; 114 final boolean visibilityEquals = mIcon != null 115 && mIcon.visible == icon.visible; 116 final boolean numberEquals = mIcon != null 117 && mIcon.number == icon.number; 118 mIcon = icon.clone(); 119 setContentDescription(icon.contentDescription); 120 if (!iconEquals) { 121 if (!updateDrawable(false /* no clear */)) return false; 122 } 123 if (!levelEquals) { 124 setImageLevel(icon.iconLevel); 125 } 126 127 if (!numberEquals) { 128 if (icon.number > 0 && mContext.getResources().getBoolean( 129 R.bool.config_statusBarShowNumber)) { 130 if (mNumberBackground == null) { 131 mNumberBackground = getContext().getResources().getDrawable( 132 R.drawable.ic_notification_overlay); 133 } 134 placeNumber(); 135 } else { 136 mNumberBackground = null; 137 mNumberText = null; 138 } 139 invalidate(); 140 } 141 if (!visibilityEquals) { 142 setVisibility(icon.visible ? VISIBLE : GONE); 143 } 144 return true; 145 } 146 updateDrawable()147 public void updateDrawable() { 148 updateDrawable(true /* with clear */); 149 } 150 updateDrawable(boolean withClear)151 private boolean updateDrawable(boolean withClear) { 152 Drawable drawable = getIcon(mIcon); 153 if (drawable == null) { 154 Slog.w(TAG, "No icon for slot " + mSlot); 155 return false; 156 } 157 if (withClear) { 158 setImageDrawable(null); 159 } 160 setImageDrawable(drawable); 161 return true; 162 } 163 getIcon(StatusBarIcon icon)164 private Drawable getIcon(StatusBarIcon icon) { 165 return getIcon(getContext(), icon); 166 } 167 168 /** 169 * Returns the right icon to use for this item, respecting the iconId and 170 * iconPackage (if set) 171 * 172 * @param context Context to use to get resources if iconPackage is not set 173 * @return Drawable for this item, or null if the package or item could not 174 * be found 175 */ getIcon(Context context, StatusBarIcon icon)176 public static Drawable getIcon(Context context, StatusBarIcon icon) { 177 Resources r = null; 178 179 if (icon.iconPackage != null) { 180 try { 181 int userId = icon.user.getIdentifier(); 182 if (userId == UserHandle.USER_ALL) { 183 userId = UserHandle.USER_OWNER; 184 } 185 r = context.getPackageManager() 186 .getResourcesForApplicationAsUser(icon.iconPackage, userId); 187 } catch (PackageManager.NameNotFoundException ex) { 188 Slog.e(TAG, "Icon package not found: " + icon.iconPackage); 189 return null; 190 } 191 } else { 192 r = context.getResources(); 193 } 194 195 if (icon.iconId == 0) { 196 return null; 197 } 198 199 try { 200 return r.getDrawable(icon.iconId); 201 } catch (RuntimeException e) { 202 Slog.w(TAG, "Icon not found in " 203 + (icon.iconPackage != null ? icon.iconId : "<system>") 204 + ": " + Integer.toHexString(icon.iconId)); 205 } 206 207 return null; 208 } 209 getStatusBarIcon()210 public StatusBarIcon getStatusBarIcon() { 211 return mIcon; 212 } 213 214 @Override onInitializeAccessibilityEvent(AccessibilityEvent event)215 public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 216 super.onInitializeAccessibilityEvent(event); 217 if (mNotification != null) { 218 event.setParcelableData(mNotification); 219 } 220 } 221 222 @Override onSizeChanged(int w, int h, int oldw, int oldh)223 protected void onSizeChanged(int w, int h, int oldw, int oldh) { 224 super.onSizeChanged(w, h, oldw, oldh); 225 if (mNumberBackground != null) { 226 placeNumber(); 227 } 228 } 229 230 @Override onDraw(Canvas canvas)231 protected void onDraw(Canvas canvas) { 232 super.onDraw(canvas); 233 234 if (mNumberBackground != null) { 235 mNumberBackground.draw(canvas); 236 canvas.drawText(mNumberText, mNumberX, mNumberY, mNumberPain); 237 } 238 } 239 240 @Override debug(int depth)241 protected void debug(int depth) { 242 super.debug(depth); 243 Log.d("View", debugIndent(depth) + "slot=" + mSlot); 244 Log.d("View", debugIndent(depth) + "icon=" + mIcon); 245 } 246 placeNumber()247 void placeNumber() { 248 final String str; 249 final int tooBig = mContext.getResources().getInteger( 250 android.R.integer.status_bar_notification_info_maxnum); 251 if (mIcon.number > tooBig) { 252 str = mContext.getResources().getString( 253 android.R.string.status_bar_notification_info_overflow); 254 } else { 255 NumberFormat f = NumberFormat.getIntegerInstance(); 256 str = f.format(mIcon.number); 257 } 258 mNumberText = str; 259 260 final int w = getWidth(); 261 final int h = getHeight(); 262 final Rect r = new Rect(); 263 mNumberPain.getTextBounds(str, 0, str.length(), r); 264 final int tw = r.right - r.left; 265 final int th = r.bottom - r.top; 266 mNumberBackground.getPadding(r); 267 int dw = r.left + tw + r.right; 268 if (dw < mNumberBackground.getMinimumWidth()) { 269 dw = mNumberBackground.getMinimumWidth(); 270 } 271 mNumberX = w-r.right-((dw-r.right-r.left)/2); 272 int dh = r.top + th + r.bottom; 273 if (dh < mNumberBackground.getMinimumWidth()) { 274 dh = mNumberBackground.getMinimumWidth(); 275 } 276 mNumberY = h-r.bottom-((dh-r.top-th-r.bottom)/2); 277 mNumberBackground.setBounds(w-dw, h-dh, w, h); 278 } 279 setContentDescription(Notification notification)280 private void setContentDescription(Notification notification) { 281 if (notification != null) { 282 CharSequence tickerText = notification.tickerText; 283 if (!TextUtils.isEmpty(tickerText)) { 284 setContentDescription(tickerText); 285 } 286 } 287 } 288 toString()289 public String toString() { 290 return "StatusBarIconView(slot=" + mSlot + " icon=" + mIcon 291 + " notification=" + mNotification + ")"; 292 } 293 } 294