The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2007 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 android.widget; |
| 18 | |
| 19 | import com.android.internal.R; |
| 20 | |
svetoslavganov | 75986cf | 2009-05-14 22:28:01 -0700 | [diff] [blame] | 21 | import android.content.Context; |
| 22 | import android.content.res.TypedArray; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 23 | import android.view.KeyEvent; |
| 24 | import android.view.MotionEvent; |
| 25 | import android.view.View; |
| 26 | import android.view.WindowManager; |
| 27 | import android.view.Gravity; |
| 28 | import android.view.ViewGroup; |
| 29 | import android.view.ViewTreeObserver; |
| 30 | import android.view.ViewTreeObserver.OnScrollChangedListener; |
| 31 | import android.view.View.OnTouchListener; |
| 32 | import android.graphics.PixelFormat; |
| 33 | import android.graphics.Rect; |
| 34 | import android.graphics.drawable.Drawable; |
| 35 | import android.graphics.drawable.StateListDrawable; |
| 36 | import android.os.IBinder; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 37 | import android.util.AttributeSet; |
| 38 | |
| 39 | import java.lang.ref.WeakReference; |
| 40 | |
| 41 | /** |
| 42 | * <p>A popup window that can be used to display an arbitrary view. The popup |
| 43 | * windows is a floating container that appears on top of the current |
| 44 | * activity.</p> |
| 45 | * |
| 46 | * @see android.widget.AutoCompleteTextView |
| 47 | * @see android.widget.Spinner |
| 48 | */ |
| 49 | public class PopupWindow { |
| 50 | /** |
Romain Guy | e29f064 | 2009-06-23 21:27:02 -0700 | [diff] [blame] | 51 | * Mode for {@link #setInputMethodMode(int)}: the requirements for the |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 52 | * input method should be based on the focusability of the popup. That is |
| 53 | * if it is focusable than it needs to work with the input method, else |
| 54 | * it doesn't. |
| 55 | */ |
| 56 | public static final int INPUT_METHOD_FROM_FOCUSABLE = 0; |
| 57 | |
| 58 | /** |
Romain Guy | e29f064 | 2009-06-23 21:27:02 -0700 | [diff] [blame] | 59 | * Mode for {@link #setInputMethodMode(int)}: this popup always needs to |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 60 | * work with an input method, regardless of whether it is focusable. This |
| 61 | * means that it will always be displayed so that the user can also operate |
| 62 | * the input method while it is shown. |
| 63 | */ |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 64 | public static final int INPUT_METHOD_NEEDED = 1; |
| 65 | |
| 66 | /** |
Romain Guy | e29f064 | 2009-06-23 21:27:02 -0700 | [diff] [blame] | 67 | * Mode for {@link #setInputMethodMode(int)}: this popup never needs to |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 68 | * work with an input method, regardless of whether it is focusable. This |
| 69 | * means that it will always be displayed to use as much space on the |
| 70 | * screen as needed, regardless of whether this covers the input method. |
| 71 | */ |
| 72 | public static final int INPUT_METHOD_NOT_NEEDED = 2; |
| 73 | |
Romain Guy | 448ecf5 | 2009-05-14 16:03:42 -0700 | [diff] [blame] | 74 | private Context mContext; |
| 75 | private WindowManager mWindowManager; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 76 | |
| 77 | private boolean mIsShowing; |
| 78 | private boolean mIsDropdown; |
| 79 | |
| 80 | private View mContentView; |
| 81 | private View mPopupView; |
| 82 | private boolean mFocusable; |
| 83 | private int mInputMethodMode = INPUT_METHOD_FROM_FOCUSABLE; |
Romain Guy | 374aaaed3 | 2009-07-14 15:11:59 -0700 | [diff] [blame] | 84 | private int mSoftInputMode; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 85 | private boolean mTouchable = true; |
| 86 | private boolean mOutsideTouchable = false; |
| 87 | private boolean mClippingEnabled = true; |
| 88 | |
| 89 | private OnTouchListener mTouchInterceptor; |
| 90 | |
| 91 | private int mWidthMode; |
| 92 | private int mWidth; |
| 93 | private int mLastWidth; |
| 94 | private int mHeightMode; |
| 95 | private int mHeight; |
| 96 | private int mLastHeight; |
| 97 | |
| 98 | private int mPopupWidth; |
| 99 | private int mPopupHeight; |
| 100 | |
| 101 | private int[] mDrawingLocation = new int[2]; |
| 102 | private int[] mScreenLocation = new int[2]; |
| 103 | private Rect mTempRect = new Rect(); |
| 104 | |
| 105 | private Drawable mBackground; |
| 106 | private Drawable mAboveAnchorBackgroundDrawable; |
| 107 | private Drawable mBelowAnchorBackgroundDrawable; |
| 108 | |
| 109 | private boolean mAboveAnchor; |
| 110 | |
| 111 | private OnDismissListener mOnDismissListener; |
| 112 | private boolean mIgnoreCheekPress = false; |
| 113 | |
| 114 | private int mAnimationStyle = -1; |
| 115 | |
| 116 | private static final int[] ABOVE_ANCHOR_STATE_SET = new int[] { |
| 117 | com.android.internal.R.attr.state_above_anchor |
| 118 | }; |
| 119 | |
| 120 | private WeakReference<View> mAnchor; |
| 121 | private OnScrollChangedListener mOnScrollChangedListener = |
| 122 | new OnScrollChangedListener() { |
| 123 | public void onScrollChanged() { |
| 124 | View anchor = mAnchor.get(); |
| 125 | if (anchor != null && mPopupView != null) { |
| 126 | WindowManager.LayoutParams p = (WindowManager.LayoutParams) |
| 127 | mPopupView.getLayoutParams(); |
| 128 | |
| 129 | mAboveAnchor = findDropDownPosition(anchor, p, mAnchorXoff, mAnchorYoff); |
| 130 | update(p.x, p.y, -1, -1, true); |
| 131 | } |
| 132 | } |
| 133 | }; |
| 134 | private int mAnchorXoff, mAnchorYoff; |
| 135 | |
| 136 | /** |
| 137 | * <p>Create a new empty, non focusable popup window of dimension (0,0).</p> |
| 138 | * |
| 139 | * <p>The popup does provide a background.</p> |
| 140 | */ |
| 141 | public PopupWindow(Context context) { |
| 142 | this(context, null); |
| 143 | } |
| 144 | |
| 145 | /** |
| 146 | * <p>Create a new empty, non focusable popup window of dimension (0,0).</p> |
| 147 | * |
| 148 | * <p>The popup does provide a background.</p> |
| 149 | */ |
| 150 | public PopupWindow(Context context, AttributeSet attrs) { |
| 151 | this(context, attrs, com.android.internal.R.attr.popupWindowStyle); |
| 152 | } |
| 153 | |
| 154 | /** |
| 155 | * <p>Create a new empty, non focusable popup window of dimension (0,0).</p> |
| 156 | * |
| 157 | * <p>The popup does provide a background.</p> |
| 158 | */ |
| 159 | public PopupWindow(Context context, AttributeSet attrs, int defStyle) { |
| 160 | mContext = context; |
Romain Guy | 448ecf5 | 2009-05-14 16:03:42 -0700 | [diff] [blame] | 161 | mWindowManager = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 162 | |
| 163 | TypedArray a = |
| 164 | context.obtainStyledAttributes( |
| 165 | attrs, com.android.internal.R.styleable.PopupWindow, defStyle, 0); |
| 166 | |
| 167 | mBackground = a.getDrawable(R.styleable.PopupWindow_popupBackground); |
| 168 | |
| 169 | // If this is a StateListDrawable, try to find and store the drawable to be |
| 170 | // used when the drop-down is placed above its anchor view, and the one to be |
| 171 | // used when the drop-down is placed below its anchor view. We extract |
| 172 | // the drawables ourselves to work around a problem with using refreshDrawableState |
| 173 | // that it will take into account the padding of all drawables specified in a |
| 174 | // StateListDrawable, thus adding superfluous padding to drop-down views. |
| 175 | // |
| 176 | // We assume a StateListDrawable will have a drawable for ABOVE_ANCHOR_STATE_SET and |
| 177 | // at least one other drawable, intended for the 'below-anchor state'. |
| 178 | if (mBackground instanceof StateListDrawable) { |
| 179 | StateListDrawable background = (StateListDrawable) mBackground; |
| 180 | |
| 181 | // Find the above-anchor view - this one's easy, it should be labeled as such. |
| 182 | int aboveAnchorStateIndex = background.getStateDrawableIndex(ABOVE_ANCHOR_STATE_SET); |
| 183 | |
| 184 | // Now, for the below-anchor view, look for any other drawable specified in the |
| 185 | // StateListDrawable which is not for the above-anchor state and use that. |
| 186 | int count = background.getStateCount(); |
| 187 | int belowAnchorStateIndex = -1; |
| 188 | for (int i = 0; i < count; i++) { |
| 189 | if (i != aboveAnchorStateIndex) { |
| 190 | belowAnchorStateIndex = i; |
| 191 | break; |
| 192 | } |
| 193 | } |
| 194 | |
| 195 | // Store the drawables we found, if we found them. Otherwise, set them both |
| 196 | // to null so that we'll just use refreshDrawableState. |
| 197 | if (aboveAnchorStateIndex != -1 && belowAnchorStateIndex != -1) { |
| 198 | mAboveAnchorBackgroundDrawable = background.getStateDrawable(aboveAnchorStateIndex); |
| 199 | mBelowAnchorBackgroundDrawable = background.getStateDrawable(belowAnchorStateIndex); |
| 200 | } else { |
| 201 | mBelowAnchorBackgroundDrawable = null; |
| 202 | mAboveAnchorBackgroundDrawable = null; |
| 203 | } |
| 204 | } |
| 205 | |
| 206 | a.recycle(); |
| 207 | } |
| 208 | |
| 209 | /** |
| 210 | * <p>Create a new empty, non focusable popup window of dimension (0,0).</p> |
| 211 | * |
| 212 | * <p>The popup does not provide any background. This should be handled |
| 213 | * by the content view.</p> |
| 214 | */ |
| 215 | public PopupWindow() { |
| 216 | this(null, 0, 0); |
| 217 | } |
| 218 | |
| 219 | /** |
| 220 | * <p>Create a new non focusable popup window which can display the |
| 221 | * <tt>contentView</tt>. The dimension of the window are (0,0).</p> |
| 222 | * |
| 223 | * <p>The popup does not provide any background. This should be handled |
| 224 | * by the content view.</p> |
| 225 | * |
| 226 | * @param contentView the popup's content |
| 227 | */ |
| 228 | public PopupWindow(View contentView) { |
| 229 | this(contentView, 0, 0); |
| 230 | } |
| 231 | |
| 232 | /** |
| 233 | * <p>Create a new empty, non focusable popup window. The dimension of the |
| 234 | * window must be passed to this constructor.</p> |
| 235 | * |
| 236 | * <p>The popup does not provide any background. This should be handled |
| 237 | * by the content view.</p> |
| 238 | * |
| 239 | * @param width the popup's width |
| 240 | * @param height the popup's height |
| 241 | */ |
| 242 | public PopupWindow(int width, int height) { |
| 243 | this(null, width, height); |
| 244 | } |
| 245 | |
| 246 | /** |
| 247 | * <p>Create a new non focusable popup window which can display the |
| 248 | * <tt>contentView</tt>. The dimension of the window must be passed to |
| 249 | * this constructor.</p> |
| 250 | * |
| 251 | * <p>The popup does not provide any background. This should be handled |
| 252 | * by the content view.</p> |
| 253 | * |
| 254 | * @param contentView the popup's content |
| 255 | * @param width the popup's width |
| 256 | * @param height the popup's height |
| 257 | */ |
| 258 | public PopupWindow(View contentView, int width, int height) { |
| 259 | this(contentView, width, height, false); |
| 260 | } |
| 261 | |
| 262 | /** |
| 263 | * <p>Create a new popup window which can display the <tt>contentView</tt>. |
| 264 | * The dimension of the window must be passed to this constructor.</p> |
| 265 | * |
| 266 | * <p>The popup does not provide any background. This should be handled |
| 267 | * by the content view.</p> |
| 268 | * |
| 269 | * @param contentView the popup's content |
| 270 | * @param width the popup's width |
| 271 | * @param height the popup's height |
| 272 | * @param focusable true if the popup can be focused, false otherwise |
| 273 | */ |
Romain Guy | 448ecf5 | 2009-05-14 16:03:42 -0700 | [diff] [blame] | 274 | public PopupWindow(View contentView, int width, int height, boolean focusable) { |
| 275 | if (contentView != null) { |
| 276 | mContext = contentView.getContext(); |
| 277 | mWindowManager = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE); |
| 278 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 279 | setContentView(contentView); |
| 280 | setWidth(width); |
| 281 | setHeight(height); |
| 282 | setFocusable(focusable); |
| 283 | } |
| 284 | |
| 285 | /** |
| 286 | * <p>Return the drawable used as the popup window's background.</p> |
| 287 | * |
| 288 | * @return the background drawable or null |
| 289 | */ |
| 290 | public Drawable getBackground() { |
| 291 | return mBackground; |
| 292 | } |
| 293 | |
| 294 | /** |
| 295 | * <p>Change the background drawable for this popup window. The background |
| 296 | * can be set to null.</p> |
| 297 | * |
| 298 | * @param background the popup's background |
| 299 | */ |
| 300 | public void setBackgroundDrawable(Drawable background) { |
| 301 | mBackground = background; |
| 302 | } |
| 303 | |
| 304 | /** |
| 305 | * <p>Return the animation style to use the popup appears and disappears</p> |
| 306 | * |
| 307 | * @return the animation style to use the popup appears and disappears |
| 308 | */ |
| 309 | public int getAnimationStyle() { |
| 310 | return mAnimationStyle; |
| 311 | } |
| 312 | |
| 313 | /** |
| 314 | * Set the flag on popup to ignore cheek press eventt; by default this flag |
| 315 | * is set to false |
| 316 | * which means the pop wont ignore cheek press dispatch events. |
| 317 | * |
| 318 | * <p>If the popup is showing, calling this method will take effect only |
| 319 | * the next time the popup is shown or through a manual call to one of |
| 320 | * the {@link #update()} methods.</p> |
| 321 | * |
| 322 | * @see #update() |
| 323 | */ |
| 324 | public void setIgnoreCheekPress() { |
| 325 | mIgnoreCheekPress = true; |
| 326 | } |
| 327 | |
| 328 | |
| 329 | /** |
| 330 | * <p>Change the animation style resource for this popup.</p> |
| 331 | * |
| 332 | * <p>If the popup is showing, calling this method will take effect only |
| 333 | * the next time the popup is shown or through a manual call to one of |
| 334 | * the {@link #update()} methods.</p> |
| 335 | * |
| 336 | * @param animationStyle animation style to use when the popup appears |
| 337 | * and disappears. Set to -1 for the default animation, 0 for no |
| 338 | * animation, or a resource identifier for an explicit animation. |
| 339 | * |
| 340 | * @see #update() |
| 341 | */ |
| 342 | public void setAnimationStyle(int animationStyle) { |
| 343 | mAnimationStyle = animationStyle; |
| 344 | } |
| 345 | |
| 346 | /** |
| 347 | * <p>Return the view used as the content of the popup window.</p> |
| 348 | * |
| 349 | * @return a {@link android.view.View} representing the popup's content |
| 350 | * |
| 351 | * @see #setContentView(android.view.View) |
| 352 | */ |
| 353 | public View getContentView() { |
| 354 | return mContentView; |
| 355 | } |
| 356 | |
| 357 | /** |
| 358 | * <p>Change the popup's content. The content is represented by an instance |
| 359 | * of {@link android.view.View}.</p> |
| 360 | * |
| 361 | * <p>This method has no effect if called when the popup is showing. To |
| 362 | * apply it while a popup is showing, call </p> |
| 363 | * |
| 364 | * @param contentView the new content for the popup |
| 365 | * |
| 366 | * @see #getContentView() |
| 367 | * @see #isShowing() |
| 368 | */ |
| 369 | public void setContentView(View contentView) { |
| 370 | if (isShowing()) { |
| 371 | return; |
| 372 | } |
| 373 | |
| 374 | mContentView = contentView; |
Romain Guy | 448ecf5 | 2009-05-14 16:03:42 -0700 | [diff] [blame] | 375 | |
| 376 | if (mContext == null) { |
| 377 | mContext = mContentView.getContext(); |
| 378 | } |
| 379 | |
| 380 | if (mWindowManager == null) { |
| 381 | mWindowManager = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE); |
| 382 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 383 | } |
| 384 | |
| 385 | /** |
| 386 | * Set a callback for all touch events being dispatched to the popup |
| 387 | * window. |
| 388 | */ |
| 389 | public void setTouchInterceptor(OnTouchListener l) { |
| 390 | mTouchInterceptor = l; |
| 391 | } |
| 392 | |
| 393 | /** |
| 394 | * <p>Indicate whether the popup window can grab the focus.</p> |
| 395 | * |
| 396 | * @return true if the popup is focusable, false otherwise |
| 397 | * |
| 398 | * @see #setFocusable(boolean) |
| 399 | */ |
| 400 | public boolean isFocusable() { |
| 401 | return mFocusable; |
| 402 | } |
| 403 | |
| 404 | /** |
| 405 | * <p>Changes the focusability of the popup window. When focusable, the |
| 406 | * window will grab the focus from the current focused widget if the popup |
| 407 | * contains a focusable {@link android.view.View}. By default a popup |
| 408 | * window is not focusable.</p> |
| 409 | * |
| 410 | * <p>If the popup is showing, calling this method will take effect only |
| 411 | * the next time the popup is shown or through a manual call to one of |
| 412 | * the {@link #update()} methods.</p> |
| 413 | * |
| 414 | * @param focusable true if the popup should grab focus, false otherwise. |
| 415 | * |
| 416 | * @see #isFocusable() |
| 417 | * @see #isShowing() |
| 418 | * @see #update() |
| 419 | */ |
| 420 | public void setFocusable(boolean focusable) { |
| 421 | mFocusable = focusable; |
| 422 | } |
| 423 | |
| 424 | /** |
| 425 | * Return the current value in {@link #setInputMethodMode(int)}. |
| 426 | * |
| 427 | * @see #setInputMethodMode(int) |
| 428 | */ |
| 429 | public int getInputMethodMode() { |
| 430 | return mInputMethodMode; |
| 431 | |
| 432 | } |
| 433 | |
| 434 | /** |
| 435 | * Control how the popup operates with an input method: one of |
| 436 | * {@link #INPUT_METHOD_FROM_FOCUSABLE}, {@link #INPUT_METHOD_NEEDED}, |
| 437 | * or {@link #INPUT_METHOD_NOT_NEEDED}. |
| 438 | * |
| 439 | * <p>If the popup is showing, calling this method will take effect only |
| 440 | * the next time the popup is shown or through a manual call to one of |
| 441 | * the {@link #update()} methods.</p> |
| 442 | * |
| 443 | * @see #getInputMethodMode() |
| 444 | * @see #update() |
| 445 | */ |
| 446 | public void setInputMethodMode(int mode) { |
| 447 | mInputMethodMode = mode; |
| 448 | } |
Romain Guy | 374aaaed3 | 2009-07-14 15:11:59 -0700 | [diff] [blame] | 449 | |
| 450 | /** |
| 451 | * Sets the operating mode for the soft input area. |
| 452 | * |
| 453 | * @param mode The desired mode, see |
| 454 | * {@link android.view.WindowManager.LayoutParams#softInputMode} |
| 455 | * for the full list |
| 456 | * |
| 457 | * @see android.view.WindowManager.LayoutParams#softInputMode |
| 458 | * @see #getSoftInputMode() |
| 459 | */ |
| 460 | public void setSoftInputMode(int mode) { |
| 461 | mSoftInputMode = mode; |
| 462 | } |
| 463 | |
| 464 | /** |
| 465 | * Returns the current value in {@link #setSoftInputMode(int)}. |
| 466 | * |
| 467 | * @see #setSoftInputMode(int) |
| 468 | * @see android.view.WindowManager.LayoutParams#softInputMode |
| 469 | */ |
| 470 | public int getSoftInputMode() { |
| 471 | return mSoftInputMode; |
| 472 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 473 | |
| 474 | /** |
| 475 | * <p>Indicates whether the popup window receives touch events.</p> |
| 476 | * |
| 477 | * @return true if the popup is touchable, false otherwise |
| 478 | * |
| 479 | * @see #setTouchable(boolean) |
| 480 | */ |
| 481 | public boolean isTouchable() { |
| 482 | return mTouchable; |
| 483 | } |
| 484 | |
| 485 | /** |
| 486 | * <p>Changes the touchability of the popup window. When touchable, the |
| 487 | * window will receive touch events, otherwise touch events will go to the |
| 488 | * window below it. By default the window is touchable.</p> |
| 489 | * |
| 490 | * <p>If the popup is showing, calling this method will take effect only |
| 491 | * the next time the popup is shown or through a manual call to one of |
| 492 | * the {@link #update()} methods.</p> |
| 493 | * |
| 494 | * @param touchable true if the popup should receive touch events, false otherwise |
| 495 | * |
| 496 | * @see #isTouchable() |
| 497 | * @see #isShowing() |
| 498 | * @see #update() |
| 499 | */ |
| 500 | public void setTouchable(boolean touchable) { |
| 501 | mTouchable = touchable; |
| 502 | } |
| 503 | |
| 504 | /** |
| 505 | * <p>Indicates whether the popup window will be informed of touch events |
| 506 | * outside of its window.</p> |
| 507 | * |
| 508 | * @return true if the popup is outside touchable, false otherwise |
| 509 | * |
| 510 | * @see #setOutsideTouchable(boolean) |
| 511 | */ |
| 512 | public boolean isOutsideTouchable() { |
| 513 | return mOutsideTouchable; |
| 514 | } |
| 515 | |
| 516 | /** |
| 517 | * <p>Controls whether the pop-up will be informed of touch events outside |
| 518 | * of its window. This only makes sense for pop-ups that are touchable |
| 519 | * but not focusable, which means touches outside of the window will |
| 520 | * be delivered to the window behind. The default is false.</p> |
| 521 | * |
| 522 | * <p>If the popup is showing, calling this method will take effect only |
| 523 | * the next time the popup is shown or through a manual call to one of |
| 524 | * the {@link #update()} methods.</p> |
| 525 | * |
| 526 | * @param touchable true if the popup should receive outside |
| 527 | * touch events, false otherwise |
| 528 | * |
| 529 | * @see #isOutsideTouchable() |
| 530 | * @see #isShowing() |
| 531 | * @see #update() |
| 532 | */ |
| 533 | public void setOutsideTouchable(boolean touchable) { |
| 534 | mOutsideTouchable = touchable; |
| 535 | } |
| 536 | |
| 537 | /** |
| 538 | * <p>Indicates whether clipping of the popup window is enabled.</p> |
| 539 | * |
| 540 | * @return true if the clipping is enabled, false otherwise |
| 541 | * |
| 542 | * @see #setClippingEnabled(boolean) |
| 543 | */ |
| 544 | public boolean isClippingEnabled() { |
| 545 | return mClippingEnabled; |
| 546 | } |
| 547 | |
| 548 | /** |
| 549 | * <p>Allows the popup window to extend beyond the bounds of the screen. By default the |
| 550 | * window is clipped to the screen boundaries. Setting this to false will allow windows to be |
| 551 | * accurately positioned.</p> |
| 552 | * |
| 553 | * <p>If the popup is showing, calling this method will take effect only |
| 554 | * the next time the popup is shown or through a manual call to one of |
| 555 | * the {@link #update()} methods.</p> |
| 556 | * |
| 557 | * @param enabled false if the window should be allowed to extend outside of the screen |
| 558 | * @see #isShowing() |
| 559 | * @see #isClippingEnabled() |
| 560 | * @see #update() |
| 561 | */ |
| 562 | public void setClippingEnabled(boolean enabled) { |
| 563 | mClippingEnabled = enabled; |
| 564 | } |
| 565 | |
| 566 | /** |
| 567 | * <p>Change the width and height measure specs that are given to the |
| 568 | * window manager by the popup. By default these are 0, meaning that |
| 569 | * the current width or height is requested as an explicit size from |
| 570 | * the window manager. You can supply |
| 571 | * {@link ViewGroup.LayoutParams#WRAP_CONTENT} or |
| 572 | * {@link ViewGroup.LayoutParams#FILL_PARENT} to have that measure |
| 573 | * spec supplied instead, replacing the absolute width and height that |
| 574 | * has been set in the popup.</p> |
| 575 | * |
| 576 | * <p>If the popup is showing, calling this method will take effect only |
| 577 | * the next time the popup is shown.</p> |
| 578 | * |
| 579 | * @param widthSpec an explicit width measure spec mode, either |
| 580 | * {@link ViewGroup.LayoutParams#WRAP_CONTENT}, |
| 581 | * {@link ViewGroup.LayoutParams#FILL_PARENT}, or 0 to use the absolute |
| 582 | * width. |
| 583 | * @param heightSpec an explicit height measure spec mode, either |
| 584 | * {@link ViewGroup.LayoutParams#WRAP_CONTENT}, |
| 585 | * {@link ViewGroup.LayoutParams#FILL_PARENT}, or 0 to use the absolute |
| 586 | * height. |
| 587 | */ |
| 588 | public void setWindowLayoutMode(int widthSpec, int heightSpec) { |
| 589 | mWidthMode = widthSpec; |
| 590 | mHeightMode = heightSpec; |
| 591 | } |
| 592 | |
| 593 | /** |
| 594 | * <p>Return this popup's height MeasureSpec</p> |
| 595 | * |
| 596 | * @return the height MeasureSpec of the popup |
| 597 | * |
| 598 | * @see #setHeight(int) |
| 599 | */ |
| 600 | public int getHeight() { |
| 601 | return mHeight; |
| 602 | } |
| 603 | |
| 604 | /** |
| 605 | * <p>Change the popup's height MeasureSpec</p> |
| 606 | * |
| 607 | * <p>If the popup is showing, calling this method will take effect only |
| 608 | * the next time the popup is shown.</p> |
| 609 | * |
| 610 | * @param height the height MeasureSpec of the popup |
| 611 | * |
| 612 | * @see #getHeight() |
| 613 | * @see #isShowing() |
| 614 | */ |
| 615 | public void setHeight(int height) { |
| 616 | mHeight = height; |
| 617 | } |
| 618 | |
| 619 | /** |
| 620 | * <p>Return this popup's width MeasureSpec</p> |
| 621 | * |
| 622 | * @return the width MeasureSpec of the popup |
| 623 | * |
| 624 | * @see #setWidth(int) |
| 625 | */ |
| 626 | public int getWidth() { |
| 627 | return mWidth; |
| 628 | } |
| 629 | |
| 630 | /** |
| 631 | * <p>Change the popup's width MeasureSpec</p> |
| 632 | * |
| 633 | * <p>If the popup is showing, calling this method will take effect only |
| 634 | * the next time the popup is shown.</p> |
| 635 | * |
| 636 | * @param width the width MeasureSpec of the popup |
| 637 | * |
| 638 | * @see #getWidth() |
| 639 | * @see #isShowing() |
| 640 | */ |
| 641 | public void setWidth(int width) { |
| 642 | mWidth = width; |
| 643 | } |
| 644 | |
| 645 | /** |
| 646 | * <p>Indicate whether this popup window is showing on screen.</p> |
| 647 | * |
| 648 | * @return true if the popup is showing, false otherwise |
| 649 | */ |
| 650 | public boolean isShowing() { |
| 651 | return mIsShowing; |
| 652 | } |
| 653 | |
| 654 | /** |
| 655 | * <p> |
| 656 | * Display the content view in a popup window at the specified location. If the popup window |
| 657 | * cannot fit on screen, it will be clipped. See {@link android.view.WindowManager.LayoutParams} |
| 658 | * for more information on how gravity and the x and y parameters are related. Specifying |
| 659 | * a gravity of {@link android.view.Gravity#NO_GRAVITY} is similar to specifying |
| 660 | * <code>Gravity.LEFT | Gravity.TOP</code>. |
| 661 | * </p> |
| 662 | * |
| 663 | * @param parent a parent view to get the {@link android.view.View#getWindowToken()} token from |
| 664 | * @param gravity the gravity which controls the placement of the popup window |
| 665 | * @param x the popup's x location offset |
| 666 | * @param y the popup's y location offset |
| 667 | */ |
| 668 | public void showAtLocation(View parent, int gravity, int x, int y) { |
| 669 | if (isShowing() || mContentView == null) { |
| 670 | return; |
| 671 | } |
| 672 | |
| 673 | unregisterForScrollChanged(); |
| 674 | |
| 675 | mIsShowing = true; |
| 676 | mIsDropdown = false; |
| 677 | |
| 678 | WindowManager.LayoutParams p = createPopupLayout(parent.getWindowToken()); |
| 679 | p.windowAnimations = computeAnimationResource(); |
| 680 | |
| 681 | preparePopup(p); |
| 682 | if (gravity == Gravity.NO_GRAVITY) { |
| 683 | gravity = Gravity.TOP | Gravity.LEFT; |
| 684 | } |
| 685 | p.gravity = gravity; |
| 686 | p.x = x; |
| 687 | p.y = y; |
| 688 | invokePopup(p); |
| 689 | } |
| 690 | |
| 691 | /** |
| 692 | * <p>Display the content view in a popup window anchored to the bottom-left |
| 693 | * corner of the anchor view. If there is not enough room on screen to show |
| 694 | * the popup in its entirety, this method tries to find a parent scroll |
| 695 | * view to scroll. If no parent scroll view can be scrolled, the bottom-left |
| 696 | * corner of the popup is pinned at the top left corner of the anchor view.</p> |
| 697 | * |
| 698 | * @param anchor the view on which to pin the popup window |
| 699 | * |
| 700 | * @see #dismiss() |
| 701 | */ |
| 702 | public void showAsDropDown(View anchor) { |
| 703 | showAsDropDown(anchor, 0, 0); |
| 704 | } |
| 705 | |
| 706 | /** |
| 707 | * <p>Display the content view in a popup window anchored to the bottom-left |
| 708 | * corner of the anchor view offset by the specified x and y coordinates. |
| 709 | * If there is not enough room on screen to show |
| 710 | * the popup in its entirety, this method tries to find a parent scroll |
| 711 | * view to scroll. If no parent scroll view can be scrolled, the bottom-left |
| 712 | * corner of the popup is pinned at the top left corner of the anchor view.</p> |
| 713 | * <p>If the view later scrolls to move <code>anchor</code> to a different |
| 714 | * location, the popup will be moved correspondingly.</p> |
| 715 | * |
| 716 | * @param anchor the view on which to pin the popup window |
| 717 | * |
| 718 | * @see #dismiss() |
| 719 | */ |
| 720 | public void showAsDropDown(View anchor, int xoff, int yoff) { |
| 721 | if (isShowing() || mContentView == null) { |
| 722 | return; |
| 723 | } |
| 724 | |
| 725 | registerForScrollChanged(anchor, xoff, yoff); |
| 726 | |
| 727 | mIsShowing = true; |
| 728 | mIsDropdown = true; |
| 729 | |
| 730 | WindowManager.LayoutParams p = createPopupLayout(anchor.getWindowToken()); |
| 731 | preparePopup(p); |
| 732 | mAboveAnchor = findDropDownPosition(anchor, p, xoff, yoff); |
| 733 | |
| 734 | if (mBackground != null) { |
| 735 | // If the background drawable provided was a StateListDrawable with above-anchor |
| 736 | // and below-anchor states, use those. Otherwise rely on refreshDrawableState to |
| 737 | // do the job. |
| 738 | if (mAboveAnchorBackgroundDrawable != null) { |
| 739 | if (mAboveAnchor) { |
| 740 | mPopupView.setBackgroundDrawable(mAboveAnchorBackgroundDrawable); |
| 741 | } else { |
| 742 | mPopupView.setBackgroundDrawable(mBelowAnchorBackgroundDrawable); |
| 743 | } |
| 744 | } else { |
| 745 | mPopupView.refreshDrawableState(); |
| 746 | } |
| 747 | } |
| 748 | |
| 749 | if (mHeightMode < 0) p.height = mLastHeight = mHeightMode; |
| 750 | if (mWidthMode < 0) p.width = mLastWidth = mWidthMode; |
| 751 | |
| 752 | p.windowAnimations = computeAnimationResource(); |
| 753 | |
| 754 | invokePopup(p); |
| 755 | } |
| 756 | |
| 757 | /** |
| 758 | * Indicates whether the popup is showing above (the y coordinate of the popup's bottom |
| 759 | * is less than the y coordinate of the anchor) or below the anchor view (the y coordinate |
| 760 | * of the popup is greater than y coordinate of the anchor's bottom). |
| 761 | * |
| 762 | * The value returned |
| 763 | * by this method is meaningful only after {@link #showAsDropDown(android.view.View)} |
| 764 | * or {@link #showAsDropDown(android.view.View, int, int)} was invoked. |
| 765 | * |
| 766 | * @return True if this popup is showing above the anchor view, false otherwise. |
| 767 | */ |
| 768 | public boolean isAboveAnchor() { |
| 769 | return mAboveAnchor; |
| 770 | } |
| 771 | |
| 772 | /** |
| 773 | * <p>Prepare the popup by embedding in into a new ViewGroup if the |
| 774 | * background drawable is not null. If embedding is required, the layout |
| 775 | * parameters' height is mnodified to take into account the background's |
| 776 | * padding.</p> |
| 777 | * |
| 778 | * @param p the layout parameters of the popup's content view |
| 779 | */ |
| 780 | private void preparePopup(WindowManager.LayoutParams p) { |
Romain Guy | 448ecf5 | 2009-05-14 16:03:42 -0700 | [diff] [blame] | 781 | if (mContentView == null || mContext == null || mWindowManager == null) { |
| 782 | throw new IllegalStateException("You must specify a valid content view by " |
| 783 | + "calling setContentView() before attempting to show the popup."); |
| 784 | } |
| 785 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 786 | if (mBackground != null) { |
| 787 | final ViewGroup.LayoutParams layoutParams = mContentView.getLayoutParams(); |
| 788 | int height = ViewGroup.LayoutParams.FILL_PARENT; |
| 789 | if (layoutParams != null && |
| 790 | layoutParams.height == ViewGroup.LayoutParams.WRAP_CONTENT) { |
| 791 | height = ViewGroup.LayoutParams.WRAP_CONTENT; |
| 792 | } |
| 793 | |
| 794 | // when a background is available, we embed the content view |
| 795 | // within another view that owns the background drawable |
| 796 | PopupViewContainer popupViewContainer = new PopupViewContainer(mContext); |
| 797 | PopupViewContainer.LayoutParams listParams = new PopupViewContainer.LayoutParams( |
| 798 | ViewGroup.LayoutParams.FILL_PARENT, height |
| 799 | ); |
| 800 | popupViewContainer.setBackgroundDrawable(mBackground); |
| 801 | popupViewContainer.addView(mContentView, listParams); |
| 802 | |
| 803 | mPopupView = popupViewContainer; |
| 804 | } else { |
| 805 | mPopupView = mContentView; |
| 806 | } |
| 807 | mPopupWidth = p.width; |
| 808 | mPopupHeight = p.height; |
| 809 | } |
| 810 | |
| 811 | /** |
| 812 | * <p>Invoke the popup window by adding the content view to the window |
| 813 | * manager.</p> |
| 814 | * |
| 815 | * <p>The content view must be non-null when this method is invoked.</p> |
| 816 | * |
| 817 | * @param p the layout parameters of the popup's content view |
| 818 | */ |
| 819 | private void invokePopup(WindowManager.LayoutParams p) { |
Amith Yamasani | d034856 | 2009-08-17 07:50:19 -0700 | [diff] [blame] | 820 | p.packageName = mContext.getPackageName(); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 821 | mWindowManager.addView(mPopupView, p); |
| 822 | } |
| 823 | |
| 824 | /** |
| 825 | * <p>Generate the layout parameters for the popup window.</p> |
| 826 | * |
| 827 | * @param token the window token used to bind the popup's window |
| 828 | * |
| 829 | * @return the layout parameters to pass to the window manager |
| 830 | */ |
| 831 | private WindowManager.LayoutParams createPopupLayout(IBinder token) { |
| 832 | // generates the layout parameters for the drop down |
| 833 | // we want a fixed size view located at the bottom left of the anchor |
| 834 | WindowManager.LayoutParams p = new WindowManager.LayoutParams(); |
| 835 | // these gravity settings put the view at the top left corner of the |
| 836 | // screen. The view is then positioned to the appropriate location |
| 837 | // by setting the x and y offsets to match the anchor's bottom |
| 838 | // left corner |
| 839 | p.gravity = Gravity.LEFT | Gravity.TOP; |
| 840 | p.width = mLastWidth = mWidth; |
| 841 | p.height = mLastHeight = mHeight; |
| 842 | if (mBackground != null) { |
| 843 | p.format = mBackground.getOpacity(); |
| 844 | } else { |
| 845 | p.format = PixelFormat.TRANSLUCENT; |
| 846 | } |
| 847 | p.flags = computeFlags(p.flags); |
| 848 | p.type = WindowManager.LayoutParams.TYPE_APPLICATION_PANEL; |
| 849 | p.token = token; |
Romain Guy | 374aaaed3 | 2009-07-14 15:11:59 -0700 | [diff] [blame] | 850 | p.softInputMode = mSoftInputMode; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 851 | p.setTitle("PopupWindow:" + Integer.toHexString(hashCode())); |
| 852 | |
| 853 | return p; |
| 854 | } |
| 855 | |
| 856 | private int computeFlags(int curFlags) { |
| 857 | curFlags &= ~( |
| 858 | WindowManager.LayoutParams.FLAG_IGNORE_CHEEK_PRESSES | |
| 859 | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | |
| 860 | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE | |
| 861 | WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH | |
| 862 | WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS | |
| 863 | WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM); |
| 864 | if(mIgnoreCheekPress) { |
| 865 | curFlags |= WindowManager.LayoutParams.FLAG_IGNORE_CHEEK_PRESSES; |
| 866 | } |
| 867 | if (!mFocusable) { |
| 868 | curFlags |= WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE; |
| 869 | if (mInputMethodMode == INPUT_METHOD_NEEDED) { |
| 870 | curFlags |= WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM; |
| 871 | } |
| 872 | } else if (mInputMethodMode == INPUT_METHOD_NOT_NEEDED) { |
| 873 | curFlags |= WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM; |
| 874 | } |
| 875 | if (!mTouchable) { |
| 876 | curFlags |= WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE; |
| 877 | } |
The Android Open Source Project | c39a6e0 | 2009-03-11 12:11:56 -0700 | [diff] [blame] | 878 | if (mOutsideTouchable) { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 879 | curFlags |= WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH; |
| 880 | } |
| 881 | if (!mClippingEnabled) { |
| 882 | curFlags |= WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS; |
| 883 | } |
| 884 | return curFlags; |
| 885 | } |
| 886 | |
| 887 | private int computeAnimationResource() { |
| 888 | if (mAnimationStyle == -1) { |
| 889 | if (mIsDropdown) { |
| 890 | return mAboveAnchor |
| 891 | ? com.android.internal.R.style.Animation_DropDownUp |
| 892 | : com.android.internal.R.style.Animation_DropDownDown; |
| 893 | } |
| 894 | return 0; |
| 895 | } |
| 896 | return mAnimationStyle; |
| 897 | } |
| 898 | |
| 899 | /** |
| 900 | * <p>Positions the popup window on screen. When the popup window is too |
| 901 | * tall to fit under the anchor, a parent scroll view is seeked and scrolled |
| 902 | * up to reclaim space. If scrolling is not possible or not enough, the |
| 903 | * popup window gets moved on top of the anchor.</p> |
| 904 | * |
| 905 | * <p>The height must have been set on the layout parameters prior to |
| 906 | * calling this method.</p> |
| 907 | * |
| 908 | * @param anchor the view on which the popup window must be anchored |
| 909 | * @param p the layout parameters used to display the drop down |
| 910 | * |
| 911 | * @return true if the popup is translated upwards to fit on screen |
| 912 | */ |
| 913 | private boolean findDropDownPosition(View anchor, WindowManager.LayoutParams p, |
| 914 | int xoff, int yoff) { |
| 915 | |
| 916 | anchor.getLocationInWindow(mDrawingLocation); |
| 917 | p.x = mDrawingLocation[0] + xoff; |
| 918 | p.y = mDrawingLocation[1] + anchor.getMeasuredHeight() + yoff; |
| 919 | |
| 920 | boolean onTop = false; |
| 921 | |
| 922 | p.gravity = Gravity.LEFT | Gravity.TOP; |
| 923 | |
| 924 | anchor.getLocationOnScreen(mScreenLocation); |
| 925 | final Rect displayFrame = new Rect(); |
| 926 | anchor.getWindowVisibleDisplayFrame(displayFrame); |
| 927 | |
| 928 | final View root = anchor.getRootView(); |
| 929 | if (p.y + mPopupHeight > displayFrame.bottom || p.x + mPopupWidth - root.getWidth() > 0) { |
| 930 | // if the drop down disappears at the bottom of the screen. we try to |
| 931 | // scroll a parent scrollview or move the drop down back up on top of |
| 932 | // the edit box |
| 933 | int scrollX = anchor.getScrollX(); |
| 934 | int scrollY = anchor.getScrollY(); |
| 935 | Rect r = new Rect(scrollX, scrollY, scrollX + mPopupWidth, |
| 936 | scrollY + mPopupHeight + anchor.getMeasuredHeight()); |
| 937 | anchor.requestRectangleOnScreen(r, true); |
| 938 | |
| 939 | // now we re-evaluate the space available, and decide from that |
| 940 | // whether the pop-up will go above or below the anchor. |
| 941 | anchor.getLocationInWindow(mDrawingLocation); |
| 942 | p.x = mDrawingLocation[0] + xoff; |
| 943 | p.y = mDrawingLocation[1] + anchor.getMeasuredHeight() + yoff; |
| 944 | |
| 945 | // determine whether there is more space above or below the anchor |
| 946 | anchor.getLocationOnScreen(mScreenLocation); |
| 947 | |
| 948 | onTop = (displayFrame.bottom - mScreenLocation[1] - anchor.getMeasuredHeight() - yoff) < |
| 949 | (mScreenLocation[1] - yoff - displayFrame.top); |
| 950 | if (onTop) { |
| 951 | p.gravity = Gravity.LEFT | Gravity.BOTTOM; |
| 952 | p.y = root.getHeight() - mDrawingLocation[1] + yoff; |
| 953 | } else { |
| 954 | p.y = mDrawingLocation[1] + anchor.getMeasuredHeight() + yoff; |
| 955 | } |
| 956 | } |
| 957 | |
| 958 | p.gravity |= Gravity.DISPLAY_CLIP_VERTICAL; |
| 959 | |
| 960 | return onTop; |
| 961 | } |
| 962 | |
| 963 | /** |
| 964 | * Returns the maximum height that is available for the popup to be |
| 965 | * completely shown. It is recommended that this height be the maximum for |
| 966 | * the popup's height, otherwise it is possible that the popup will be |
| 967 | * clipped. |
| 968 | * |
| 969 | * @param anchor The view on which the popup window must be anchored. |
| 970 | * @return The maximum available height for the popup to be completely |
| 971 | * shown. |
| 972 | */ |
| 973 | public int getMaxAvailableHeight(View anchor) { |
| 974 | return getMaxAvailableHeight(anchor, 0); |
| 975 | } |
| 976 | |
| 977 | /** |
| 978 | * Returns the maximum height that is available for the popup to be |
| 979 | * completely shown. It is recommended that this height be the maximum for |
| 980 | * the popup's height, otherwise it is possible that the popup will be |
| 981 | * clipped. |
| 982 | * |
| 983 | * @param anchor The view on which the popup window must be anchored. |
| 984 | * @param yOffset y offset from the view's bottom edge |
| 985 | * @return The maximum available height for the popup to be completely |
| 986 | * shown. |
| 987 | */ |
| 988 | public int getMaxAvailableHeight(View anchor, int yOffset) { |
Mike LeBeau | 98acd54 | 2009-05-07 19:04:39 -0700 | [diff] [blame] | 989 | return getMaxAvailableHeight(anchor, yOffset, false); |
| 990 | } |
| 991 | |
| 992 | /** |
| 993 | * Returns the maximum height that is available for the popup to be |
| 994 | * completely shown, optionally ignoring any bottom decorations such as |
| 995 | * the input method. It is recommended that this height be the maximum for |
| 996 | * the popup's height, otherwise it is possible that the popup will be |
| 997 | * clipped. |
| 998 | * |
| 999 | * @param anchor The view on which the popup window must be anchored. |
| 1000 | * @param yOffset y offset from the view's bottom edge |
| 1001 | * @param ignoreBottomDecorations if true, the height returned will be |
| 1002 | * all the way to the bottom of the display, ignoring any |
| 1003 | * bottom decorations |
| 1004 | * @return The maximum available height for the popup to be completely |
| 1005 | * shown. |
| 1006 | * |
| 1007 | * @hide Pending API council approval. |
| 1008 | */ |
| 1009 | public int getMaxAvailableHeight(View anchor, int yOffset, boolean ignoreBottomDecorations) { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1010 | final Rect displayFrame = new Rect(); |
| 1011 | anchor.getWindowVisibleDisplayFrame(displayFrame); |
| 1012 | |
| 1013 | final int[] anchorPos = mDrawingLocation; |
| 1014 | anchor.getLocationOnScreen(anchorPos); |
| 1015 | |
Mike LeBeau | 98acd54 | 2009-05-07 19:04:39 -0700 | [diff] [blame] | 1016 | int bottomEdge = displayFrame.bottom; |
| 1017 | if (ignoreBottomDecorations) { |
Mitsuru Oshima | 64f5934 | 2009-06-21 00:03:11 -0700 | [diff] [blame] | 1018 | bottomEdge = anchor.getContext().getResources().getDisplayMetrics().heightPixels; |
Mike LeBeau | 98acd54 | 2009-05-07 19:04:39 -0700 | [diff] [blame] | 1019 | } |
| 1020 | final int distanceToBottom = bottomEdge - (anchorPos[1] + anchor.getHeight()) - yOffset; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1021 | final int distanceToTop = anchorPos[1] - displayFrame.top + yOffset; |
| 1022 | |
| 1023 | // anchorPos[1] is distance from anchor to top of screen |
| 1024 | int returnedHeight = Math.max(distanceToBottom, distanceToTop); |
| 1025 | if (mBackground != null) { |
| 1026 | mBackground.getPadding(mTempRect); |
| 1027 | returnedHeight -= mTempRect.top + mTempRect.bottom; |
| 1028 | } |
| 1029 | |
| 1030 | return returnedHeight; |
| 1031 | } |
| 1032 | |
| 1033 | /** |
| 1034 | * <p>Dispose of the popup window. This method can be invoked only after |
| 1035 | * {@link #showAsDropDown(android.view.View)} has been executed. Failing that, calling |
| 1036 | * this method will have no effect.</p> |
| 1037 | * |
| 1038 | * @see #showAsDropDown(android.view.View) |
| 1039 | */ |
| 1040 | public void dismiss() { |
| 1041 | if (isShowing() && mPopupView != null) { |
| 1042 | unregisterForScrollChanged(); |
| 1043 | |
| 1044 | mWindowManager.removeView(mPopupView); |
svetoslavganov | 75986cf | 2009-05-14 22:28:01 -0700 | [diff] [blame] | 1045 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1046 | if (mPopupView != mContentView && mPopupView instanceof ViewGroup) { |
| 1047 | ((ViewGroup) mPopupView).removeView(mContentView); |
| 1048 | } |
| 1049 | mPopupView = null; |
| 1050 | mIsShowing = false; |
| 1051 | |
| 1052 | if (mOnDismissListener != null) { |
| 1053 | mOnDismissListener.onDismiss(); |
| 1054 | } |
| 1055 | } |
| 1056 | } |
| 1057 | |
| 1058 | /** |
| 1059 | * Sets the listener to be called when the window is dismissed. |
| 1060 | * |
| 1061 | * @param onDismissListener The listener. |
| 1062 | */ |
| 1063 | public void setOnDismissListener(OnDismissListener onDismissListener) { |
| 1064 | mOnDismissListener = onDismissListener; |
| 1065 | } |
| 1066 | |
| 1067 | /** |
| 1068 | * Updates the state of the popup window, if it is currently being displayed, |
| 1069 | * from the currently set state. This include: |
| 1070 | * {@link #setClippingEnabled(boolean)}, {@link #setFocusable(boolean)}, |
| 1071 | * {@link #setIgnoreCheekPress()}, {@link #setInputMethodMode(int)}, |
| 1072 | * {@link #setTouchable(boolean)}, and {@link #setAnimationStyle(int)}. |
| 1073 | */ |
| 1074 | public void update() { |
| 1075 | if (!isShowing() || mContentView == null) { |
| 1076 | return; |
| 1077 | } |
| 1078 | |
| 1079 | WindowManager.LayoutParams p = (WindowManager.LayoutParams) |
| 1080 | mPopupView.getLayoutParams(); |
| 1081 | |
| 1082 | boolean update = false; |
| 1083 | |
| 1084 | final int newAnim = computeAnimationResource(); |
| 1085 | if (newAnim != p.windowAnimations) { |
| 1086 | p.windowAnimations = newAnim; |
| 1087 | update = true; |
| 1088 | } |
| 1089 | |
| 1090 | final int newFlags = computeFlags(p.flags); |
| 1091 | if (newFlags != p.flags) { |
| 1092 | p.flags = newFlags; |
| 1093 | update = true; |
| 1094 | } |
| 1095 | |
| 1096 | if (update) { |
| 1097 | mWindowManager.updateViewLayout(mPopupView, p); |
| 1098 | } |
| 1099 | } |
Romain Guy | d6a463a | 2009-05-21 23:10:10 -0700 | [diff] [blame] | 1100 | |
| 1101 | /** |
| 1102 | * <p>Updates the dimension of the popup window. Calling this function |
| 1103 | * also updates the window with the current popup state as described |
| 1104 | * for {@link #update()}.</p> |
| 1105 | * |
| 1106 | * @param width the new width |
| 1107 | * @param height the new height |
| 1108 | */ |
| 1109 | public void update(int width, int height) { |
| 1110 | WindowManager.LayoutParams p = (WindowManager.LayoutParams) |
| 1111 | mPopupView.getLayoutParams(); |
| 1112 | update(p.x, p.y, width, height, false); |
| 1113 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1114 | |
| 1115 | /** |
| 1116 | * <p>Updates the position and the dimension of the popup window. Width and |
| 1117 | * height can be set to -1 to update location only. Calling this function |
| 1118 | * also updates the window with the current popup state as |
| 1119 | * described for {@link #update()}.</p> |
| 1120 | * |
| 1121 | * @param x the new x location |
| 1122 | * @param y the new y location |
| 1123 | * @param width the new width, can be -1 to ignore |
| 1124 | * @param height the new height, can be -1 to ignore |
| 1125 | */ |
| 1126 | public void update(int x, int y, int width, int height) { |
| 1127 | update(x, y, width, height, false); |
| 1128 | } |
| 1129 | |
| 1130 | /** |
| 1131 | * <p>Updates the position and the dimension of the popup window. Width and |
| 1132 | * height can be set to -1 to update location only. Calling this function |
| 1133 | * also updates the window with the current popup state as |
| 1134 | * described for {@link #update()}.</p> |
| 1135 | * |
| 1136 | * @param x the new x location |
| 1137 | * @param y the new y location |
| 1138 | * @param width the new width, can be -1 to ignore |
| 1139 | * @param height the new height, can be -1 to ignore |
| 1140 | * @param force reposition the window even if the specified position |
| 1141 | * already seems to correspond to the LayoutParams |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1142 | */ |
| 1143 | public void update(int x, int y, int width, int height, boolean force) { |
| 1144 | if (width != -1) { |
| 1145 | mLastWidth = width; |
| 1146 | setWidth(width); |
| 1147 | } |
| 1148 | |
| 1149 | if (height != -1) { |
| 1150 | mLastHeight = height; |
| 1151 | setHeight(height); |
| 1152 | } |
| 1153 | |
| 1154 | if (!isShowing() || mContentView == null) { |
| 1155 | return; |
| 1156 | } |
| 1157 | |
Romain Guy | e29f064 | 2009-06-23 21:27:02 -0700 | [diff] [blame] | 1158 | WindowManager.LayoutParams p = (WindowManager.LayoutParams) mPopupView.getLayoutParams(); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1159 | |
| 1160 | boolean update = force; |
| 1161 | |
| 1162 | final int finalWidth = mWidthMode < 0 ? mWidthMode : mLastWidth; |
| 1163 | if (width != -1 && p.width != finalWidth) { |
| 1164 | p.width = mLastWidth = finalWidth; |
| 1165 | update = true; |
| 1166 | } |
| 1167 | |
| 1168 | final int finalHeight = mHeightMode < 0 ? mHeightMode : mLastHeight; |
| 1169 | if (height != -1 && p.height != finalHeight) { |
| 1170 | p.height = mLastHeight = finalHeight; |
| 1171 | update = true; |
| 1172 | } |
| 1173 | |
| 1174 | if (p.x != x) { |
| 1175 | p.x = x; |
| 1176 | update = true; |
| 1177 | } |
| 1178 | |
| 1179 | if (p.y != y) { |
| 1180 | p.y = y; |
| 1181 | update = true; |
| 1182 | } |
| 1183 | |
| 1184 | final int newAnim = computeAnimationResource(); |
| 1185 | if (newAnim != p.windowAnimations) { |
| 1186 | p.windowAnimations = newAnim; |
| 1187 | update = true; |
| 1188 | } |
| 1189 | |
| 1190 | final int newFlags = computeFlags(p.flags); |
| 1191 | if (newFlags != p.flags) { |
| 1192 | p.flags = newFlags; |
| 1193 | update = true; |
| 1194 | } |
Mike LeBeau | 98acd54 | 2009-05-07 19:04:39 -0700 | [diff] [blame] | 1195 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1196 | if (update) { |
| 1197 | mWindowManager.updateViewLayout(mPopupView, p); |
| 1198 | } |
| 1199 | } |
| 1200 | |
| 1201 | /** |
The Android Open Source Project | 1059253 | 2009-03-18 17:39:46 -0700 | [diff] [blame] | 1202 | * <p>Updates the position and the dimension of the popup window. Calling this |
| 1203 | * function also updates the window with the current popup state as described |
| 1204 | * for {@link #update()}.</p> |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1205 | * |
| 1206 | * @param anchor the popup's anchor view |
| 1207 | * @param width the new width, can be -1 to ignore |
| 1208 | * @param height the new height, can be -1 to ignore |
| 1209 | */ |
| 1210 | public void update(View anchor, int width, int height) { |
The Android Open Source Project | 1059253 | 2009-03-18 17:39:46 -0700 | [diff] [blame] | 1211 | update(anchor, false, 0, 0, true, width, height); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1212 | } |
| 1213 | |
| 1214 | /** |
| 1215 | * <p>Updates the position and the dimension of the popup window. Width and |
| 1216 | * height can be set to -1 to update location only. Calling this function |
| 1217 | * also updates the window with the current popup state as |
| 1218 | * described for {@link #update()}.</p> |
| 1219 | * <p>If the view later scrolls to move <code>anchor</code> to a different |
| 1220 | * location, the popup will be moved correspondingly.</p> |
| 1221 | * |
| 1222 | * @param anchor the popup's anchor view |
| 1223 | * @param xoff x offset from the view's left edge |
| 1224 | * @param yoff y offset from the view's bottom edge |
| 1225 | * @param width the new width, can be -1 to ignore |
| 1226 | * @param height the new height, can be -1 to ignore |
| 1227 | */ |
| 1228 | public void update(View anchor, int xoff, int yoff, int width, int height) { |
The Android Open Source Project | 1059253 | 2009-03-18 17:39:46 -0700 | [diff] [blame] | 1229 | update(anchor, true, xoff, yoff, true, width, height); |
| 1230 | } |
| 1231 | |
| 1232 | private void update(View anchor, boolean updateLocation, int xoff, int yoff, |
| 1233 | boolean updateDimension, int width, int height) { |
| 1234 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1235 | if (!isShowing() || mContentView == null) { |
| 1236 | return; |
| 1237 | } |
| 1238 | |
| 1239 | WeakReference<View> oldAnchor = mAnchor; |
| 1240 | if (oldAnchor == null || oldAnchor.get() != anchor || |
The Android Open Source Project | 1059253 | 2009-03-18 17:39:46 -0700 | [diff] [blame] | 1241 | (updateLocation && (mAnchorXoff != xoff || mAnchorYoff != yoff))) { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1242 | registerForScrollChanged(anchor, xoff, yoff); |
| 1243 | } |
| 1244 | |
Romain Guy | e29f064 | 2009-06-23 21:27:02 -0700 | [diff] [blame] | 1245 | WindowManager.LayoutParams p = (WindowManager.LayoutParams) mPopupView.getLayoutParams(); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1246 | |
The Android Open Source Project | 1059253 | 2009-03-18 17:39:46 -0700 | [diff] [blame] | 1247 | if (updateDimension) { |
| 1248 | if (width == -1) { |
| 1249 | width = mPopupWidth; |
| 1250 | } else { |
| 1251 | mPopupWidth = width; |
| 1252 | } |
| 1253 | if (height == -1) { |
| 1254 | height = mPopupHeight; |
| 1255 | } else { |
| 1256 | mPopupHeight = height; |
| 1257 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1258 | } |
The Android Open Source Project | 1059253 | 2009-03-18 17:39:46 -0700 | [diff] [blame] | 1259 | |
| 1260 | if (updateLocation) { |
| 1261 | mAboveAnchor = findDropDownPosition(anchor, p, xoff, yoff); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1262 | } else { |
The Android Open Source Project | 1059253 | 2009-03-18 17:39:46 -0700 | [diff] [blame] | 1263 | mAboveAnchor = findDropDownPosition(anchor, p, mAnchorXoff, mAnchorYoff); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1264 | } |
The Android Open Source Project | 1059253 | 2009-03-18 17:39:46 -0700 | [diff] [blame] | 1265 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1266 | update(p.x, p.y, width, height); |
| 1267 | } |
| 1268 | |
| 1269 | /** |
| 1270 | * Listener that is called when this popup window is dismissed. |
| 1271 | */ |
| 1272 | public interface OnDismissListener { |
| 1273 | /** |
| 1274 | * Called when this popup window is dismissed. |
| 1275 | */ |
| 1276 | public void onDismiss(); |
| 1277 | } |
| 1278 | |
| 1279 | private void unregisterForScrollChanged() { |
| 1280 | WeakReference<View> anchorRef = mAnchor; |
| 1281 | View anchor = null; |
| 1282 | if (anchorRef != null) { |
| 1283 | anchor = anchorRef.get(); |
| 1284 | } |
| 1285 | if (anchor != null) { |
| 1286 | ViewTreeObserver vto = anchor.getViewTreeObserver(); |
| 1287 | vto.removeOnScrollChangedListener(mOnScrollChangedListener); |
| 1288 | } |
| 1289 | mAnchor = null; |
| 1290 | } |
| 1291 | |
| 1292 | private void registerForScrollChanged(View anchor, int xoff, int yoff) { |
| 1293 | unregisterForScrollChanged(); |
| 1294 | |
| 1295 | mAnchor = new WeakReference<View>(anchor); |
| 1296 | ViewTreeObserver vto = anchor.getViewTreeObserver(); |
| 1297 | if (vto != null) { |
| 1298 | vto.addOnScrollChangedListener(mOnScrollChangedListener); |
| 1299 | } |
| 1300 | |
| 1301 | mAnchorXoff = xoff; |
| 1302 | mAnchorYoff = yoff; |
| 1303 | } |
| 1304 | |
| 1305 | private class PopupViewContainer extends FrameLayout { |
| 1306 | |
| 1307 | public PopupViewContainer(Context context) { |
| 1308 | super(context); |
| 1309 | } |
| 1310 | |
| 1311 | @Override |
| 1312 | protected int[] onCreateDrawableState(int extraSpace) { |
| 1313 | if (mAboveAnchor) { |
| 1314 | // 1 more needed for the above anchor state |
| 1315 | final int[] drawableState = super.onCreateDrawableState(extraSpace + 1); |
| 1316 | View.mergeDrawableStates(drawableState, ABOVE_ANCHOR_STATE_SET); |
| 1317 | return drawableState; |
| 1318 | } else { |
| 1319 | return super.onCreateDrawableState(extraSpace); |
| 1320 | } |
| 1321 | } |
| 1322 | |
| 1323 | @Override |
| 1324 | public boolean dispatchKeyEvent(KeyEvent event) { |
| 1325 | if (event.getKeyCode() == KeyEvent.KEYCODE_BACK) { |
Dianne Hackborn | 8d37426 | 2009-09-14 21:21:52 -0700 | [diff] [blame] | 1326 | if (event.getAction() == KeyEvent.ACTION_DOWN |
| 1327 | && event.getRepeatCount() == 0) { |
| 1328 | getKeyDispatcherState().startTracking(event, this); |
| 1329 | return true; |
| 1330 | } else if (event.getAction() == KeyEvent.ACTION_UP |
| 1331 | && event.isTracking() && !event.isCanceled()) { |
| 1332 | dismiss(); |
| 1333 | return true; |
| 1334 | } |
| 1335 | return super.dispatchKeyEvent(event); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1336 | } else { |
| 1337 | return super.dispatchKeyEvent(event); |
| 1338 | } |
| 1339 | } |
| 1340 | |
| 1341 | @Override |
| 1342 | public boolean dispatchTouchEvent(MotionEvent ev) { |
| 1343 | if (mTouchInterceptor != null && mTouchInterceptor.onTouch(this, ev)) { |
| 1344 | return true; |
| 1345 | } |
| 1346 | return super.dispatchTouchEvent(ev); |
| 1347 | } |
| 1348 | |
| 1349 | @Override |
| 1350 | public boolean onTouchEvent(MotionEvent event) { |
| 1351 | final int x = (int) event.getX(); |
| 1352 | final int y = (int) event.getY(); |
| 1353 | |
| 1354 | if ((event.getAction() == MotionEvent.ACTION_DOWN) |
| 1355 | && ((x < 0) || (x >= getWidth()) || (y < 0) || (y >= getHeight()))) { |
| 1356 | dismiss(); |
| 1357 | return true; |
| 1358 | } else if (event.getAction() == MotionEvent.ACTION_OUTSIDE) { |
| 1359 | dismiss(); |
| 1360 | return true; |
| 1361 | } else { |
| 1362 | return super.onTouchEvent(event); |
| 1363 | } |
| 1364 | } |
svetoslavganov | 75986cf | 2009-05-14 22:28:01 -0700 | [diff] [blame] | 1365 | |
| 1366 | @Override |
| 1367 | public void sendAccessibilityEvent(int eventType) { |
| 1368 | // clinets are interested in the content not the container, make it event source |
| 1369 | if (mContentView != null) { |
| 1370 | mContentView.sendAccessibilityEvent(eventType); |
| 1371 | } else { |
| 1372 | super.sendAccessibilityEvent(eventType); |
| 1373 | } |
| 1374 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1375 | } |
| 1376 | |
| 1377 | } |