| /* |
| * Copyright (C) 2006 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 android.view; |
| |
| import android.graphics.PixelFormat; |
| import android.os.IBinder; |
| import android.util.AndroidRuntimeException; |
| import android.util.Config; |
| import android.util.Log; |
| import android.view.WindowManager; |
| import android.view.inputmethod.InputMethodManager; |
| |
| final class WindowLeaked extends AndroidRuntimeException { |
| public WindowLeaked(String msg) { |
| super(msg); |
| } |
| } |
| |
| /** |
| * Low-level communication with the global system window manager. It implements |
| * the ViewManager interface, allowing you to add any View subclass as a |
| * top-level window on the screen. Additional window manager specific layout |
| * parameters are defined for control over how windows are displayed. |
| * It also implemens the WindowManager interface, allowing you to control the |
| * displays attached to the device. |
| * |
| * <p>Applications will not normally use WindowManager directly, instead relying |
| * on the higher-level facilities in {@link android.app.Activity} and |
| * {@link android.app.Dialog}. |
| * |
| * <p>Even for low-level window manager access, it is almost never correct to use |
| * this class. For example, {@link android.app.Activity#getWindowManager} |
| * provides a ViewManager for adding windows that are associated with that |
| * activity -- the window manager will not normally allow you to add arbitrary |
| * windows that are not associated with an activity. |
| * |
| * @hide |
| */ |
| public class WindowManagerImpl implements WindowManager { |
| /** |
| * The user is navigating with keys (not the touch screen), so |
| * navigational focus should be shown. |
| */ |
| public static final int RELAYOUT_IN_TOUCH_MODE = 0x1; |
| /** |
| * This is the first time the window is being drawn, |
| * so the client must call drawingFinished() when done |
| */ |
| public static final int RELAYOUT_FIRST_TIME = 0x2; |
| |
| public static final int ADD_FLAG_APP_VISIBLE = 0x2; |
| public static final int ADD_FLAG_IN_TOUCH_MODE = RELAYOUT_IN_TOUCH_MODE; |
| |
| public static final int ADD_OKAY = 0; |
| public static final int ADD_BAD_APP_TOKEN = -1; |
| public static final int ADD_BAD_SUBWINDOW_TOKEN = -2; |
| public static final int ADD_NOT_APP_TOKEN = -3; |
| public static final int ADD_APP_EXITING = -4; |
| public static final int ADD_DUPLICATE_ADD = -5; |
| public static final int ADD_STARTING_NOT_NEEDED = -6; |
| public static final int ADD_MULTIPLE_SINGLETON = -7; |
| public static final int ADD_PERMISSION_DENIED = -8; |
| |
| public static WindowManagerImpl getDefault() |
| { |
| return mWindowManager; |
| } |
| |
| public boolean isHardwareAccelerated() { |
| return false; |
| } |
| |
| public void addView(View view) |
| { |
| addView(view, new WindowManager.LayoutParams( |
| WindowManager.LayoutParams.TYPE_APPLICATION, 0, PixelFormat.OPAQUE)); |
| } |
| |
| public void addView(View view, ViewGroup.LayoutParams params) |
| { |
| addView(view, params, false); |
| } |
| |
| public void addViewNesting(View view, ViewGroup.LayoutParams params) |
| { |
| addView(view, params, false); |
| } |
| |
| private void addView(View view, ViewGroup.LayoutParams params, boolean nest) |
| { |
| if (Config.LOGV) Log.v("WindowManager", "addView view=" + view); |
| |
| if (!(params instanceof WindowManager.LayoutParams)) { |
| throw new IllegalArgumentException( |
| "Params must be WindowManager.LayoutParams"); |
| } |
| |
| final WindowManager.LayoutParams wparams |
| = (WindowManager.LayoutParams)params; |
| |
| ViewRoot root; |
| View panelParentView = null; |
| |
| synchronized (this) { |
| // Here's an odd/questionable case: if someone tries to add a |
| // view multiple times, then we simply bump up a nesting count |
| // and they need to remove the view the corresponding number of |
| // times to have it actually removed from the window manager. |
| // This is useful specifically for the notification manager, |
| // which can continually add/remove the same view as a |
| // notification gets updated. |
| int index = findViewLocked(view, false); |
| if (index >= 0) { |
| if (!nest) { |
| throw new IllegalStateException("View " + view |
| + " has already been added to the window manager."); |
| } |
| root = mRoots[index]; |
| root.mAddNesting++; |
| // Update layout parameters. |
| view.setLayoutParams(wparams); |
| root.setLayoutParams(wparams, true); |
| return; |
| } |
| |
| // If this is a panel window, then find the window it is being |
| // attached to for future reference. |
| if (wparams.type >= WindowManager.LayoutParams.FIRST_SUB_WINDOW && |
| wparams.type <= WindowManager.LayoutParams.LAST_SUB_WINDOW) { |
| final int count = mViews != null ? mViews.length : 0; |
| for (int i=0; i<count; i++) { |
| if (mRoots[i].mWindow.asBinder() == wparams.token) { |
| panelParentView = mViews[i]; |
| } |
| } |
| } |
| |
| root = new ViewRoot(view.getContext()); |
| root.mAddNesting = 1; |
| |
| view.setLayoutParams(wparams); |
| |
| if (mViews == null) { |
| index = 1; |
| mViews = new View[1]; |
| mRoots = new ViewRoot[1]; |
| mParams = new WindowManager.LayoutParams[1]; |
| } else { |
| index = mViews.length + 1; |
| Object[] old = mViews; |
| mViews = new View[index]; |
| System.arraycopy(old, 0, mViews, 0, index-1); |
| old = mRoots; |
| mRoots = new ViewRoot[index]; |
| System.arraycopy(old, 0, mRoots, 0, index-1); |
| old = mParams; |
| mParams = new WindowManager.LayoutParams[index]; |
| System.arraycopy(old, 0, mParams, 0, index-1); |
| } |
| index--; |
| |
| mViews[index] = view; |
| mRoots[index] = root; |
| mParams[index] = wparams; |
| } |
| // do this last because it fires off messages to start doing things |
| root.setView(view, wparams, panelParentView); |
| } |
| |
| public void updateViewLayout(View view, ViewGroup.LayoutParams params) { |
| if (!(params instanceof WindowManager.LayoutParams)) { |
| throw new IllegalArgumentException("Params must be WindowManager.LayoutParams"); |
| } |
| |
| final WindowManager.LayoutParams wparams |
| = (WindowManager.LayoutParams)params; |
| |
| view.setLayoutParams(wparams); |
| |
| synchronized (this) { |
| int index = findViewLocked(view, true); |
| ViewRoot root = mRoots[index]; |
| mParams[index] = wparams; |
| root.setLayoutParams(wparams, false); |
| } |
| } |
| |
| public void removeView(View view) { |
| synchronized (this) { |
| int index = findViewLocked(view, true); |
| View curView = removeViewLocked(index); |
| if (curView == view) { |
| return; |
| } |
| |
| throw new IllegalStateException("Calling with view " + view |
| + " but the ViewRoot is attached to " + curView); |
| } |
| } |
| |
| public void removeViewImmediate(View view) { |
| synchronized (this) { |
| int index = findViewLocked(view, true); |
| ViewRoot root = mRoots[index]; |
| View curView = root.getView(); |
| |
| root.mAddNesting = 0; |
| root.die(true); |
| finishRemoveViewLocked(curView, index); |
| if (curView == view) { |
| return; |
| } |
| |
| throw new IllegalStateException("Calling with view " + view |
| + " but the ViewRoot is attached to " + curView); |
| } |
| } |
| |
| View removeViewLocked(int index) { |
| ViewRoot root = mRoots[index]; |
| View view = root.getView(); |
| |
| // Don't really remove until we have matched all calls to add(). |
| root.mAddNesting--; |
| if (root.mAddNesting > 0) { |
| return view; |
| } |
| |
| InputMethodManager imm = InputMethodManager.getInstance(view.getContext()); |
| if (imm != null) { |
| imm.windowDismissed(mViews[index].getWindowToken()); |
| } |
| root.die(false); |
| finishRemoveViewLocked(view, index); |
| return view; |
| } |
| |
| void finishRemoveViewLocked(View view, int index) { |
| final int count = mViews.length; |
| |
| // remove it from the list |
| View[] tmpViews = new View[count-1]; |
| removeItem(tmpViews, mViews, index); |
| mViews = tmpViews; |
| |
| ViewRoot[] tmpRoots = new ViewRoot[count-1]; |
| removeItem(tmpRoots, mRoots, index); |
| mRoots = tmpRoots; |
| |
| WindowManager.LayoutParams[] tmpParams |
| = new WindowManager.LayoutParams[count-1]; |
| removeItem(tmpParams, mParams, index); |
| mParams = tmpParams; |
| |
| view.assignParent(null); |
| // func doesn't allow null... does it matter if we clear them? |
| //view.setLayoutParams(null); |
| } |
| |
| public void closeAll(IBinder token, String who, String what) { |
| synchronized (this) { |
| if (mViews == null) |
| return; |
| |
| int count = mViews.length; |
| //Log.i("foo", "Closing all windows of " + token); |
| for (int i=0; i<count; i++) { |
| //Log.i("foo", "@ " + i + " token " + mParams[i].token |
| // + " view " + mRoots[i].getView()); |
| if (token == null || mParams[i].token == token) { |
| ViewRoot root = mRoots[i]; |
| root.mAddNesting = 1; |
| |
| //Log.i("foo", "Force closing " + root); |
| if (who != null) { |
| WindowLeaked leak = new WindowLeaked( |
| what + " " + who + " has leaked window " |
| + root.getView() + " that was originally added here"); |
| leak.setStackTrace(root.getLocation().getStackTrace()); |
| Log.e("WindowManager", leak.getMessage(), leak); |
| } |
| |
| removeViewLocked(i); |
| i--; |
| count--; |
| } |
| } |
| } |
| } |
| |
| public WindowManager.LayoutParams getRootViewLayoutParameter(View view) { |
| ViewParent vp = view.getParent(); |
| while (vp != null && !(vp instanceof ViewRoot)) { |
| vp = vp.getParent(); |
| } |
| |
| if (vp == null) return null; |
| |
| ViewRoot vr = (ViewRoot)vp; |
| |
| int N = mRoots.length; |
| for (int i = 0; i < N; ++i) { |
| if (mRoots[i] == vr) { |
| return mParams[i]; |
| } |
| } |
| |
| return null; |
| } |
| |
| public void closeAll() { |
| closeAll(null, null, null); |
| } |
| |
| public Display getDefaultDisplay() { |
| return new Display(Display.DEFAULT_DISPLAY); |
| } |
| |
| private View[] mViews; |
| private ViewRoot[] mRoots; |
| private WindowManager.LayoutParams[] mParams; |
| |
| private static void removeItem(Object[] dst, Object[] src, int index) |
| { |
| if (dst.length > 0) { |
| if (index > 0) { |
| System.arraycopy(src, 0, dst, 0, index); |
| } |
| if (index < dst.length) { |
| System.arraycopy(src, index+1, dst, index, src.length-index-1); |
| } |
| } |
| } |
| |
| private int findViewLocked(View view, boolean required) |
| { |
| synchronized (this) { |
| final int count = mViews != null ? mViews.length : 0; |
| for (int i=0; i<count; i++) { |
| if (mViews[i] == view) { |
| return i; |
| } |
| } |
| if (required) { |
| throw new IllegalArgumentException( |
| "View not attached to window manager"); |
| } |
| return -1; |
| } |
| } |
| |
| private static WindowManagerImpl mWindowManager = new WindowManagerImpl(); |
| } |