Examples with RootViewSurfaceTaker com.android.internal.view.RootViewSurfaceTaker used on opensource projects

Example 1 with RootViewSurfaceTaker

use of com.android.internal.view.RootViewSurfaceTaker in project android_frameworks_base by ResurrectionRemix.

the class ViewRootImpl method performTraversals.

private void performTraversals() {
    // cache mView since it is used so much below...
    final View host = mView;
    if (DBG) {
        System.out.println("======================================");
        System.out.println("performTraversals");
        host.debug();
    }
    if (host == null || !mAdded)
        return;
    mIsInTraversal = true;
    mWillDrawSoon = true;
    boolean windowSizeMayChange = false;
    boolean newSurface = false;
    boolean surfaceChanged = false;
    WindowManager.LayoutParams lp = mWindowAttributes;
    int desiredWindowWidth;
    int desiredWindowHeight;
    final int viewVisibility = getHostVisibility();
    final boolean viewVisibilityChanged = !mFirst && (mViewVisibility != viewVisibility || mNewSurfaceNeeded);
    final boolean viewUserVisibilityChanged = !mFirst && ((mViewVisibility == View.VISIBLE) != (viewVisibility == View.VISIBLE));
    WindowManager.LayoutParams params = null;
    if (mWindowAttributesChanged) {
        mWindowAttributesChanged = false;
        surfaceChanged = true;
        params = lp;
    }
    CompatibilityInfo compatibilityInfo = mDisplay.getDisplayAdjustments().getCompatibilityInfo();
    if (compatibilityInfo.supportsScreen() == mLastInCompatMode) {
        params = lp;
        mFullRedrawNeeded = true;
        mLayoutRequested = true;
        if (mLastInCompatMode) {
            params.privateFlags &= ~WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW;
            mLastInCompatMode = false;
        } else {
            params.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW;
            mLastInCompatMode = true;
        }
    }
    mWindowAttributesChangesFlag = 0;
    Rect frame = mWinFrame;
    if (mFirst) {
        mFullRedrawNeeded = true;
        mLayoutRequested = true;
        if (shouldUseDisplaySize(lp)) {
            // NOTE -- system code, won't try to do compat mode.
            Point size = new Point();
            mDisplay.getRealSize(size);
            desiredWindowWidth = size.x;
            desiredWindowHeight = size.y;
        } else {
            Configuration config = mContext.getResources().getConfiguration();
            desiredWindowWidth = dipToPx(config.screenWidthDp);
            desiredWindowHeight = dipToPx(config.screenHeightDp);
        }
        // We used to use the following condition to choose 32 bits drawing caches:
        // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888
        // However, windows are now always 32 bits by default, so choose 32 bits
        mAttachInfo.mUse32BitDrawingCache = true;
        mAttachInfo.mHasWindowFocus = false;
        mAttachInfo.mWindowVisibility = viewVisibility;
        mAttachInfo.mRecomputeGlobalAttributes = false;
        mLastConfiguration.setTo(host.getResources().getConfiguration());
        mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility;
        // Set the layout direction if it has not been set before (inherit is the default)
        if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) {
            host.setLayoutDirection(mLastConfiguration.getLayoutDirection());
        }
        host.dispatchAttachedToWindow(mAttachInfo, 0);
        mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(true);
        dispatchApplyInsets(host);
    //Log.i(mTag, "Screen on initialized: " + attachInfo.mKeepScreenOn);
    } else {
        desiredWindowWidth = frame.width();
        desiredWindowHeight = frame.height();
        if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) {
            if (DEBUG_ORIENTATION)
                Log.v(mTag, "View " + host + " resized to: " + frame);
            mFullRedrawNeeded = true;
            mLayoutRequested = true;
            windowSizeMayChange = true;
        }
    }
    if (viewVisibilityChanged) {
        mAttachInfo.mWindowVisibility = viewVisibility;
        host.dispatchWindowVisibilityChanged(viewVisibility);
        if (viewUserVisibilityChanged) {
            host.dispatchVisibilityAggregated(viewVisibility == View.VISIBLE);
        }
        if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) {
            endDragResizing();
            destroyHardwareResources();
        }
        if (viewVisibility == View.GONE) {
            // After making a window gone, we will count it as being
            // shown for the first time the next time it gets focus.
            mHasHadWindowFocus = false;
        }
    }
    // Non-visible windows can't hold accessibility focus.
    if (mAttachInfo.mWindowVisibility != View.VISIBLE) {
        host.clearAccessibilityFocus();
    }
    // Execute enqueued actions on every traversal in case a detached view enqueued an action
    getRunQueue().executeActions(mAttachInfo.mHandler);
    boolean insetsChanged = false;
    boolean layoutRequested = mLayoutRequested && (!mStopped || mReportNextDraw);
    if (layoutRequested) {
        final Resources res = mView.getContext().getResources();
        if (mFirst) {
            // make sure touch mode code executes by setting cached value
            // to opposite of the added touch mode.
            mAttachInfo.mInTouchMode = !mAddedTouchMode;
            ensureTouchModeLocally(mAddedTouchMode);
        } else {
            if (!mPendingOverscanInsets.equals(mAttachInfo.mOverscanInsets)) {
                insetsChanged = true;
            }
            if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) {
                insetsChanged = true;
            }
            if (!mPendingStableInsets.equals(mAttachInfo.mStableInsets)) {
                insetsChanged = true;
            }
            if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) {
                mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets);
                if (DEBUG_LAYOUT)
                    Log.v(mTag, "Visible insets changing to: " + mAttachInfo.mVisibleInsets);
            }
            if (!mPendingOutsets.equals(mAttachInfo.mOutsets)) {
                insetsChanged = true;
            }
            if (mPendingAlwaysConsumeNavBar != mAttachInfo.mAlwaysConsumeNavBar) {
                insetsChanged = true;
            }
            if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) {
                windowSizeMayChange = true;
                if (shouldUseDisplaySize(lp)) {
                    // NOTE -- system code, won't try to do compat mode.
                    Point size = new Point();
                    mDisplay.getRealSize(size);
                    desiredWindowWidth = size.x;
                    desiredWindowHeight = size.y;
                } else {
                    Configuration config = res.getConfiguration();
                    desiredWindowWidth = dipToPx(config.screenWidthDp);
                    desiredWindowHeight = dipToPx(config.screenHeightDp);
                }
            }
        }
        // Ask host how big it wants to be
        windowSizeMayChange |= measureHierarchy(host, lp, res, desiredWindowWidth, desiredWindowHeight);
    }
    if (collectViewAttributes()) {
        params = lp;
    }
    if (mAttachInfo.mForceReportNewAttributes) {
        mAttachInfo.mForceReportNewAttributes = false;
        params = lp;
    }
    if (mFirst || mAttachInfo.mViewVisibilityChanged) {
        mAttachInfo.mViewVisibilityChanged = false;
        int resizeMode = mSoftInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST;
        // what mode to use now.
        if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) {
            final int N = mAttachInfo.mScrollContainers.size();
            for (int i = 0; i < N; i++) {
                if (mAttachInfo.mScrollContainers.get(i).isShown()) {
                    resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE;
                }
            }
            if (resizeMode == 0) {
                resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN;
            }
            if ((lp.softInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) {
                lp.softInputMode = (lp.softInputMode & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | resizeMode;
                params = lp;
            }
        }
    }
    if (params != null) {
        if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) {
            if (!PixelFormat.formatHasAlpha(params.format)) {
                params.format = PixelFormat.TRANSLUCENT;
            }
        }
        mAttachInfo.mOverscanRequested = (params.flags & WindowManager.LayoutParams.FLAG_LAYOUT_IN_OVERSCAN) != 0;
    }
    if (mApplyInsetsRequested) {
        mApplyInsetsRequested = false;
        mLastOverscanRequested = mAttachInfo.mOverscanRequested;
        dispatchApplyInsets(host);
        if (mLayoutRequested) {
            // Short-circuit catching a new layout request here, so
            // we don't need to go through two layout passes when things
            // change due to fitting system windows, which can happen a lot.
            windowSizeMayChange |= measureHierarchy(host, lp, mView.getContext().getResources(), desiredWindowWidth, desiredWindowHeight);
        }
    }
    if (layoutRequested) {
        // Clear this now, so that if anything requests a layout in the
        // rest of this function we will catch it and re-run a full
        // layout pass.
        mLayoutRequested = false;
    }
    boolean windowShouldResize = layoutRequested && windowSizeMayChange && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && frame.width() < desiredWindowWidth && frame.width() != mWidth) || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && frame.height() < desiredWindowHeight && frame.height() != mHeight));
    windowShouldResize |= mDragResizing && mResizeMode == RESIZE_MODE_FREEFORM;
    // If the activity was just relaunched, it might have unfrozen the task bounds (while
    // relaunching), so we need to force a call into window manager to pick up the latest
    // bounds.
    windowShouldResize |= mActivityRelaunched;
    // Determine whether to compute insets.
    // If there are no inset listeners remaining then we may still need to compute
    // insets in case the old insets were non-empty and must be reset.
    final boolean computesInternalInsets = mAttachInfo.mTreeObserver.hasComputeInternalInsetsListeners() || mAttachInfo.mHasNonEmptyGivenInternalInsets;
    boolean insetsPending = false;
    int relayoutResult = 0;
    boolean updatedConfiguration = false;
    final int surfaceGenerationId = mSurface.getGenerationId();
    final boolean isViewVisible = viewVisibility == View.VISIBLE;
    if (mFirst || windowShouldResize || insetsChanged || viewVisibilityChanged || params != null || mForceNextWindowRelayout) {
        mForceNextWindowRelayout = false;
        if (isViewVisible) {
            // If this window is giving internal insets to the window
            // manager, and it is being added or changing its visibility,
            // then we want to first give the window manager "fake"
            // insets to cause it to effectively ignore the content of
            // the window during layout.  This avoids it briefly causing
            // other windows to resize/move based on the raw frame of the
            // window, waiting until we can finish laying out this window
            // and get back to the window manager with the ultimately
            // computed insets.
            insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged);
        }
        if (mSurfaceHolder != null) {
            mSurfaceHolder.mSurfaceLock.lock();
            mDrawingAllowed = true;
        }
        boolean hwInitialized = false;
        boolean contentInsetsChanged = false;
        boolean hadSurface = mSurface.isValid();
        try {
            if (DEBUG_LAYOUT) {
                Log.i(mTag, "host=w:" + host.getMeasuredWidth() + ", h:" + host.getMeasuredHeight() + ", params=" + params);
            }
            if (mAttachInfo.mHardwareRenderer != null) {
                // and stop using the surface in case it gets destroyed.
                if (mAttachInfo.mHardwareRenderer.pauseSurface(mSurface)) {
                    // Animations were running so we need to push a frame
                    // to resume them
                    mDirty.set(0, 0, mWidth, mHeight);
                }
                mChoreographer.mFrameInfo.addFlags(FrameInfo.FLAG_WINDOW_LAYOUT_CHANGED);
            }
            relayoutResult = relayoutWindow(params, viewVisibility, insetsPending);
            if (DEBUG_LAYOUT)
                Log.v(mTag, "relayout: frame=" + frame.toShortString() + " overscan=" + mPendingOverscanInsets.toShortString() + " content=" + mPendingContentInsets.toShortString() + " visible=" + mPendingVisibleInsets.toShortString() + " visible=" + mPendingStableInsets.toShortString() + " outsets=" + mPendingOutsets.toShortString() + " surface=" + mSurface);
            if (mPendingConfiguration.seq != 0) {
                if (DEBUG_CONFIGURATION)
                    Log.v(mTag, "Visible with new config: " + mPendingConfiguration);
                updateConfiguration(new Configuration(mPendingConfiguration), !mFirst);
                mPendingConfiguration.seq = 0;
                updatedConfiguration = true;
            }
            final boolean overscanInsetsChanged = !mPendingOverscanInsets.equals(mAttachInfo.mOverscanInsets);
            contentInsetsChanged = !mPendingContentInsets.equals(mAttachInfo.mContentInsets);
            final boolean visibleInsetsChanged = !mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets);
            final boolean stableInsetsChanged = !mPendingStableInsets.equals(mAttachInfo.mStableInsets);
            final boolean outsetsChanged = !mPendingOutsets.equals(mAttachInfo.mOutsets);
            final boolean surfaceSizeChanged = (relayoutResult & WindowManagerGlobal.RELAYOUT_RES_SURFACE_RESIZED) != 0;
            final boolean alwaysConsumeNavBarChanged = mPendingAlwaysConsumeNavBar != mAttachInfo.mAlwaysConsumeNavBar;
            if (contentInsetsChanged) {
                mAttachInfo.mContentInsets.set(mPendingContentInsets);
                if (DEBUG_LAYOUT)
                    Log.v(mTag, "Content insets changing to: " + mAttachInfo.mContentInsets);
            }
            if (overscanInsetsChanged) {
                mAttachInfo.mOverscanInsets.set(mPendingOverscanInsets);
                if (DEBUG_LAYOUT)
                    Log.v(mTag, "Overscan insets changing to: " + mAttachInfo.mOverscanInsets);
                // Need to relayout with content insets.
                contentInsetsChanged = true;
            }
            if (stableInsetsChanged) {
                mAttachInfo.mStableInsets.set(mPendingStableInsets);
                if (DEBUG_LAYOUT)
                    Log.v(mTag, "Decor insets changing to: " + mAttachInfo.mStableInsets);
                // Need to relayout with content insets.
                contentInsetsChanged = true;
            }
            if (alwaysConsumeNavBarChanged) {
                mAttachInfo.mAlwaysConsumeNavBar = mPendingAlwaysConsumeNavBar;
                contentInsetsChanged = true;
            }
            if (contentInsetsChanged || mLastSystemUiVisibility != mAttachInfo.mSystemUiVisibility || mApplyInsetsRequested || mLastOverscanRequested != mAttachInfo.mOverscanRequested || outsetsChanged) {
                mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility;
                mLastOverscanRequested = mAttachInfo.mOverscanRequested;
                mAttachInfo.mOutsets.set(mPendingOutsets);
                mApplyInsetsRequested = false;
                dispatchApplyInsets(host);
            }
            if (visibleInsetsChanged) {
                mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets);
                if (DEBUG_LAYOUT)
                    Log.v(mTag, "Visible insets changing to: " + mAttachInfo.mVisibleInsets);
            }
            if (!hadSurface) {
                if (mSurface.isValid()) {
                    // If we are creating a new surface, then we need to
                    // completely redraw it.  Also, when we get to the
                    // point of drawing it we will hold off and schedule
                    // a new traversal instead.  This is so we can tell the
                    // window manager about all of the windows being displayed
                    // before actually drawing them, so it can display then
                    // all at once.
                    newSurface = true;
                    mFullRedrawNeeded = true;
                    mPreviousTransparentRegion.setEmpty();
                    // will be transparent
                    if (mAttachInfo.mHardwareRenderer != null) {
                        try {
                            hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mSurface);
                            if (hwInitialized && (host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) == 0) {
                                // Don't pre-allocate if transparent regions
                                // are requested as they may not be needed
                                mSurface.allocateBuffers();
                            }
                        } catch (OutOfResourcesException e) {
                            handleOutOfResourcesException(e);
                            return;
                        }
                    }
                }
            } else if (!mSurface.isValid()) {
                // positions.
                if (mLastScrolledFocus != null) {
                    mLastScrolledFocus.clear();
                }
                mScrollY = mCurScrollY = 0;
                if (mView instanceof RootViewSurfaceTaker) {
                    ((RootViewSurfaceTaker) mView).onRootViewScrollYChanged(mCurScrollY);
                }
                if (mScroller != null) {
                    mScroller.abortAnimation();
                }
                // Our surface is gone
                if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) {
                    mAttachInfo.mHardwareRenderer.destroy();
                }
            } else if ((surfaceGenerationId != mSurface.getGenerationId() || surfaceSizeChanged) && mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) {
                mFullRedrawNeeded = true;
                try {
                    // Need to do updateSurface (which leads to CanvasContext::setSurface and
                    // re-create the EGLSurface) if either the Surface changed (as indicated by
                    // generation id), or WindowManager changed the surface size. The latter is
                    // because on some chips, changing the consumer side's BufferQueue size may
                    // not take effect immediately unless we create a new EGLSurface.
                    // Note that frame size change doesn't always imply surface size change (eg.
                    // drag resizing uses fullscreen surface), need to check surfaceSizeChanged
                    // flag from WindowManager.
                    mAttachInfo.mHardwareRenderer.updateSurface(mSurface);
                } catch (OutOfResourcesException e) {
                    handleOutOfResourcesException(e);
                    return;
                }
            }
            final boolean freeformResizing = (relayoutResult & WindowManagerGlobal.RELAYOUT_RES_DRAG_RESIZING_FREEFORM) != 0;
            final boolean dockedResizing = (relayoutResult & WindowManagerGlobal.RELAYOUT_RES_DRAG_RESIZING_DOCKED) != 0;
            final boolean dragResizing = freeformResizing || dockedResizing;
            if (mDragResizing != dragResizing) {
                if (dragResizing) {
                    mResizeMode = freeformResizing ? RESIZE_MODE_FREEFORM : RESIZE_MODE_DOCKED_DIVIDER;
                    startDragResizing(mPendingBackDropFrame, mWinFrame.equals(mPendingBackDropFrame), mPendingVisibleInsets, mPendingStableInsets, mResizeMode);
                } else {
                    // We shouldn't come here, but if we come we should end the resize.
                    endDragResizing();
                }
            }
            if (!USE_MT_RENDERER) {
                if (dragResizing) {
                    mCanvasOffsetX = mWinFrame.left;
                    mCanvasOffsetY = mWinFrame.top;
                } else {
                    mCanvasOffsetX = mCanvasOffsetY = 0;
                }
            }
        } catch (RemoteException e) {
        }
        if (DEBUG_ORIENTATION)
            Log.v(TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface);
        mAttachInfo.mWindowLeft = frame.left;
        mAttachInfo.mWindowTop = frame.top;
        // the window session beforehand.
        if (mWidth != frame.width() || mHeight != frame.height()) {
            mWidth = frame.width();
            mHeight = frame.height();
        }
        if (mSurfaceHolder != null) {
            // The app owns the surface; tell it about what is going on.
            if (mSurface.isValid()) {
                // XXX .copyFrom() doesn't work!
                //mSurfaceHolder.mSurface.copyFrom(mSurface);
                mSurfaceHolder.mSurface = mSurface;
            }
            mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight);
            mSurfaceHolder.mSurfaceLock.unlock();
            if (mSurface.isValid()) {
                if (!hadSurface) {
                    mSurfaceHolder.ungetCallbacks();
                    mIsCreating = true;
                    mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder);
                    SurfaceHolder.Callback[] callbacks = mSurfaceHolder.getCallbacks();
                    if (callbacks != null) {
                        for (SurfaceHolder.Callback c : callbacks) {
                            c.surfaceCreated(mSurfaceHolder);
                        }
                    }
                    surfaceChanged = true;
                }
                if (surfaceChanged || surfaceGenerationId != mSurface.getGenerationId()) {
                    mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, lp.format, mWidth, mHeight);
                    SurfaceHolder.Callback[] callbacks = mSurfaceHolder.getCallbacks();
                    if (callbacks != null) {
                        for (SurfaceHolder.Callback c : callbacks) {
                            c.surfaceChanged(mSurfaceHolder, lp.format, mWidth, mHeight);
                        }
                    }
                }
                mIsCreating = false;
            } else if (hadSurface) {
                mSurfaceHolder.ungetCallbacks();
                SurfaceHolder.Callback[] callbacks = mSurfaceHolder.getCallbacks();
                mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder);
                if (callbacks != null) {
                    for (SurfaceHolder.Callback c : callbacks) {
                        c.surfaceDestroyed(mSurfaceHolder);
                    }
                }
                mSurfaceHolder.mSurfaceLock.lock();
                try {
                    mSurfaceHolder.mSurface = new Surface();
                } finally {
                    mSurfaceHolder.mSurfaceLock.unlock();
                }
            }
        }
        final ThreadedRenderer hardwareRenderer = mAttachInfo.mHardwareRenderer;
        if (hardwareRenderer != null && hardwareRenderer.isEnabled()) {
            if (hwInitialized || mWidth != hardwareRenderer.getWidth() || mHeight != hardwareRenderer.getHeight() || mNeedsHwRendererSetup) {
                hardwareRenderer.setup(mWidth, mHeight, mAttachInfo, mWindowAttributes.surfaceInsets);
                mNeedsHwRendererSetup = false;
            }
        }
        if (!mStopped || mReportNextDraw) {
            boolean focusChangedDueToTouchMode = ensureTouchModeLocally((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0);
            if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight() || contentInsetsChanged || updatedConfiguration) {
                int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width);
                int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height);
                if (DEBUG_LAYOUT)
                    Log.v(mTag, "Ooops, something changed!  mWidth=" + mWidth + " measuredWidth=" + host.getMeasuredWidth() + " mHeight=" + mHeight + " measuredHeight=" + host.getMeasuredHeight() + " coveredInsetsChanged=" + contentInsetsChanged);
                // Ask host how big it wants to be
                performMeasure(childWidthMeasureSpec, childHeightMeasureSpec);
                // Implementation of weights from WindowManager.LayoutParams
                // We just grow the dimensions as needed and re-measure if
                // needs be
                int width = host.getMeasuredWidth();
                int height = host.getMeasuredHeight();
                boolean measureAgain = false;
                if (lp.horizontalWeight > 0.0f) {
                    width += (int) ((mWidth - width) * lp.horizontalWeight);
                    childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, MeasureSpec.EXACTLY);
                    measureAgain = true;
                }
                if (lp.verticalWeight > 0.0f) {
                    height += (int) ((mHeight - height) * lp.verticalWeight);
                    childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY);
                    measureAgain = true;
                }
                if (measureAgain) {
                    if (DEBUG_LAYOUT)
                        Log.v(mTag, "And hey let's measure once more: width=" + width + " height=" + height);
                    performMeasure(childWidthMeasureSpec, childHeightMeasureSpec);
                }
                layoutRequested = true;
            }
        }
    } else {
        // Not the first pass and no window/insets/visibility change but the window
        // may have moved and we need check that and if so to update the left and right
        // in the attach info. We translate only the window frame since on window move
        // the window manager tells us only for the new frame but the insets are the
        // same and we do not want to translate them more than once.
        maybeHandleWindowMove(frame);
    }
    final boolean didLayout = layoutRequested && (!mStopped || mReportNextDraw);
    boolean triggerGlobalLayoutListener = didLayout || mAttachInfo.mRecomputeGlobalAttributes;
    if (didLayout) {
        performLayout(lp, mWidth, mHeight);
        if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) {
            // start out transparent
            // TODO: AVOID THAT CALL BY CACHING THE RESULT?
            host.getLocationInWindow(mTmpLocation);
            mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], mTmpLocation[0] + host.mRight - host.mLeft, mTmpLocation[1] + host.mBottom - host.mTop);
            host.gatherTransparentRegion(mTransparentRegion);
            if (mTranslator != null) {
                mTranslator.translateRegionInWindowToScreen(mTransparentRegion);
            }
            if (!mTransparentRegion.equals(mPreviousTransparentRegion)) {
                mPreviousTransparentRegion.set(mTransparentRegion);
                mFullRedrawNeeded = true;
                // reconfigure window manager
                try {
                    mWindowSession.setTransparentRegion(mWindow, mTransparentRegion);
                } catch (RemoteException e) {
                }
            }
        }
        if (DBG) {
            System.out.println("======================================");
            System.out.println("performTraversals -- after setFrame");
            host.debug();
        }
    }
    if (triggerGlobalLayoutListener) {
        mAttachInfo.mRecomputeGlobalAttributes = false;
        mAttachInfo.mTreeObserver.dispatchOnGlobalLayout();
    }
    if (computesInternalInsets) {
        // Clear the original insets.
        final ViewTreeObserver.InternalInsetsInfo insets = mAttachInfo.mGivenInternalInsets;
        insets.reset();
        // Compute new insets in place.
        mAttachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets);
        mAttachInfo.mHasNonEmptyGivenInternalInsets = !insets.isEmpty();
        // Tell the window manager.
        if (insetsPending || !mLastGivenInsets.equals(insets)) {
            mLastGivenInsets.set(insets);
            // Translate insets to screen coordinates if needed.
            final Rect contentInsets;
            final Rect visibleInsets;
            final Region touchableRegion;
            if (mTranslator != null) {
                contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets);
                visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets);
                touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion);
            } else {
                contentInsets = insets.contentInsets;
                visibleInsets = insets.visibleInsets;
                touchableRegion = insets.touchableRegion;
            }
            try {
                mWindowSession.setInsets(mWindow, insets.mTouchableInsets, contentInsets, visibleInsets, touchableRegion);
            } catch (RemoteException e) {
            }
        }
    }
    if (mFirst) {
        // handle first focus request
        if (DEBUG_INPUT_RESIZE)
            Log.v(mTag, "First: mView.hasFocus()=" + mView.hasFocus());
        if (mView != null) {
            if (!mView.hasFocus()) {
                mView.requestFocus(View.FOCUS_FORWARD);
                if (DEBUG_INPUT_RESIZE)
                    Log.v(mTag, "First: requested focused view=" + mView.findFocus());
            } else {
                if (DEBUG_INPUT_RESIZE)
                    Log.v(mTag, "First: existing focused view=" + mView.findFocus());
            }
        }
    }
    final boolean changedVisibility = (viewVisibilityChanged || mFirst) && isViewVisible;
    final boolean hasWindowFocus = mAttachInfo.mHasWindowFocus && isViewVisible;
    final boolean regainedFocus = hasWindowFocus && mLostWindowFocus;
    if (regainedFocus) {
        mLostWindowFocus = false;
    } else if (!hasWindowFocus && mHadWindowFocus) {
        mLostWindowFocus = true;
    }
    if (changedVisibility || regainedFocus) {
        // Toasts are presented as notifications - don't present them as windows as well
        boolean isToast = (mWindowAttributes == null) ? false : (mWindowAttributes.type == WindowManager.LayoutParams.TYPE_TOAST);
        if (!isToast) {
            host.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
        }
    }
    mFirst = false;
    mWillDrawSoon = false;
    mNewSurfaceNeeded = false;
    mActivityRelaunched = false;
    mViewVisibility = viewVisibility;
    mHadWindowFocus = hasWindowFocus;
    if (hasWindowFocus && !isInLocalFocusMode()) {
        final boolean imTarget = WindowManager.LayoutParams.mayUseInputMethod(mWindowAttributes.flags);
        if (imTarget != mLastWasImTarget) {
            mLastWasImTarget = imTarget;
            InputMethodManager imm = InputMethodManager.peekInstance();
            if (imm != null && imTarget) {
                imm.onPreWindowFocus(mView, hasWindowFocus);
                imm.onPostWindowFocus(mView, mView.findFocus(), mWindowAttributes.softInputMode, !mHasHadWindowFocus, mWindowAttributes.flags);
            }
        }
    }
    // Remember if we must report the next draw.
    if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) {
        mReportNextDraw = true;
    }
    boolean cancelDraw = mAttachInfo.mTreeObserver.dispatchOnPreDraw() || !isViewVisible;
    if (!cancelDraw && !newSurface) {
        if (mPendingTransitions != null && mPendingTransitions.size() > 0) {
            for (int i = 0; i < mPendingTransitions.size(); ++i) {
                mPendingTransitions.get(i).startChangingAnimations();
            }
            mPendingTransitions.clear();
        }
        performDraw();
    } else {
        if (isViewVisible) {
            // Try again
            scheduleTraversals();
        } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) {
            for (int i = 0; i < mPendingTransitions.size(); ++i) {
                mPendingTransitions.get(i).endChangingAnimations();
            }
            mPendingTransitions.clear();
        }
    }
    mIsInTraversal = false;
}

Example 2 with RootViewSurfaceTaker

use of com.android.internal.view.RootViewSurfaceTaker in project android_frameworks_base by DirtyUnicorns.

the class ViewRootImpl method performTraversals.

private void performTraversals() {
    // cache mView since it is used so much below...
    final View host = mView;
    if (DBG) {
        System.out.println("======================================");
        System.out.println("performTraversals");
        host.debug();
    }
    if (host == null || !mAdded)
        return;
    mIsInTraversal = true;
    mWillDrawSoon = true;
    boolean windowSizeMayChange = false;
    boolean newSurface = false;
    boolean surfaceChanged = false;
    WindowManager.LayoutParams lp = mWindowAttributes;
    int desiredWindowWidth;
    int desiredWindowHeight;
    final int viewVisibility = getHostVisibility();
    final boolean viewVisibilityChanged = !mFirst && (mViewVisibility != viewVisibility || mNewSurfaceNeeded);
    final boolean viewUserVisibilityChanged = !mFirst && ((mViewVisibility == View.VISIBLE) != (viewVisibility == View.VISIBLE));
    WindowManager.LayoutParams params = null;
    if (mWindowAttributesChanged) {
        mWindowAttributesChanged = false;
        surfaceChanged = true;
        params = lp;
    }
    CompatibilityInfo compatibilityInfo = mDisplay.getDisplayAdjustments().getCompatibilityInfo();
    if (compatibilityInfo.supportsScreen() == mLastInCompatMode) {
        params = lp;
        mFullRedrawNeeded = true;
        mLayoutRequested = true;
        if (mLastInCompatMode) {
            params.privateFlags &= ~WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW;
            mLastInCompatMode = false;
        } else {
            params.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW;
            mLastInCompatMode = true;
        }
    }
    mWindowAttributesChangesFlag = 0;
    Rect frame = mWinFrame;
    if (mFirst) {
        mFullRedrawNeeded = true;
        mLayoutRequested = true;
        if (shouldUseDisplaySize(lp)) {
            // NOTE -- system code, won't try to do compat mode.
            Point size = new Point();
            mDisplay.getRealSize(size);
            desiredWindowWidth = size.x;
            desiredWindowHeight = size.y;
        } else {
            Configuration config = mContext.getResources().getConfiguration();
            desiredWindowWidth = dipToPx(config.screenWidthDp);
            desiredWindowHeight = dipToPx(config.screenHeightDp);
        }
        // We used to use the following condition to choose 32 bits drawing caches:
        // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888
        // However, windows are now always 32 bits by default, so choose 32 bits
        mAttachInfo.mUse32BitDrawingCache = true;
        mAttachInfo.mHasWindowFocus = false;
        mAttachInfo.mWindowVisibility = viewVisibility;
        mAttachInfo.mRecomputeGlobalAttributes = false;
        mLastConfiguration.setTo(host.getResources().getConfiguration());
        mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility;
        // Set the layout direction if it has not been set before (inherit is the default)
        if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) {
            host.setLayoutDirection(mLastConfiguration.getLayoutDirection());
        }
        host.dispatchAttachedToWindow(mAttachInfo, 0);
        mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(true);
        dispatchApplyInsets(host);
    //Log.i(mTag, "Screen on initialized: " + attachInfo.mKeepScreenOn);
    } else {
        desiredWindowWidth = frame.width();
        desiredWindowHeight = frame.height();
        if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) {
            if (DEBUG_ORIENTATION)
                Log.v(mTag, "View " + host + " resized to: " + frame);
            mFullRedrawNeeded = true;
            mLayoutRequested = true;
            windowSizeMayChange = true;
        }
    }
    if (viewVisibilityChanged) {
        mAttachInfo.mWindowVisibility = viewVisibility;
        host.dispatchWindowVisibilityChanged(viewVisibility);
        if (viewUserVisibilityChanged) {
            host.dispatchVisibilityAggregated(viewVisibility == View.VISIBLE);
        }
        if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) {
            endDragResizing();
            destroyHardwareResources();
        }
        if (viewVisibility == View.GONE) {
            // After making a window gone, we will count it as being
            // shown for the first time the next time it gets focus.
            mHasHadWindowFocus = false;
        }
    }
    // Non-visible windows can't hold accessibility focus.
    if (mAttachInfo.mWindowVisibility != View.VISIBLE) {
        host.clearAccessibilityFocus();
    }
    // Execute enqueued actions on every traversal in case a detached view enqueued an action
    getRunQueue().executeActions(mAttachInfo.mHandler);
    boolean insetsChanged = false;
    boolean layoutRequested = mLayoutRequested && (!mStopped || mReportNextDraw);
    if (layoutRequested) {
        final Resources res = mView.getContext().getResources();
        if (mFirst) {
            // make sure touch mode code executes by setting cached value
            // to opposite of the added touch mode.
            mAttachInfo.mInTouchMode = !mAddedTouchMode;
            ensureTouchModeLocally(mAddedTouchMode);
        } else {
            if (!mPendingOverscanInsets.equals(mAttachInfo.mOverscanInsets)) {
                insetsChanged = true;
            }
            if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) {
                insetsChanged = true;
            }
            if (!mPendingStableInsets.equals(mAttachInfo.mStableInsets)) {
                insetsChanged = true;
            }
            if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) {
                mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets);
                if (DEBUG_LAYOUT)
                    Log.v(mTag, "Visible insets changing to: " + mAttachInfo.mVisibleInsets);
            }
            if (!mPendingOutsets.equals(mAttachInfo.mOutsets)) {
                insetsChanged = true;
            }
            if (mPendingAlwaysConsumeNavBar != mAttachInfo.mAlwaysConsumeNavBar) {
                insetsChanged = true;
            }
            if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) {
                windowSizeMayChange = true;
                if (shouldUseDisplaySize(lp)) {
                    // NOTE -- system code, won't try to do compat mode.
                    Point size = new Point();
                    mDisplay.getRealSize(size);
                    desiredWindowWidth = size.x;
                    desiredWindowHeight = size.y;
                } else {
                    Configuration config = res.getConfiguration();
                    desiredWindowWidth = dipToPx(config.screenWidthDp);
                    desiredWindowHeight = dipToPx(config.screenHeightDp);
                }
            }
        }
        // Ask host how big it wants to be
        windowSizeMayChange |= measureHierarchy(host, lp, res, desiredWindowWidth, desiredWindowHeight);
    }
    if (collectViewAttributes()) {
        params = lp;
    }
    if (mAttachInfo.mForceReportNewAttributes) {
        mAttachInfo.mForceReportNewAttributes = false;
        params = lp;
    }
    if (mFirst || mAttachInfo.mViewVisibilityChanged) {
        mAttachInfo.mViewVisibilityChanged = false;
        int resizeMode = mSoftInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST;
        // what mode to use now.
        if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) {
            final int N = mAttachInfo.mScrollContainers.size();
            for (int i = 0; i < N; i++) {
                if (mAttachInfo.mScrollContainers.get(i).isShown()) {
                    resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE;
                }
            }
            if (resizeMode == 0) {
                resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN;
            }
            if ((lp.softInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) {
                lp.softInputMode = (lp.softInputMode & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | resizeMode;
                params = lp;
            }
        }
    }
    if (params != null) {
        if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) {
            if (!PixelFormat.formatHasAlpha(params.format)) {
                params.format = PixelFormat.TRANSLUCENT;
            }
        }
        mAttachInfo.mOverscanRequested = (params.flags & WindowManager.LayoutParams.FLAG_LAYOUT_IN_OVERSCAN) != 0;
    }
    if (mApplyInsetsRequested) {
        mApplyInsetsRequested = false;
        mLastOverscanRequested = mAttachInfo.mOverscanRequested;
        dispatchApplyInsets(host);
        if (mLayoutRequested) {
            // Short-circuit catching a new layout request here, so
            // we don't need to go through two layout passes when things
            // change due to fitting system windows, which can happen a lot.
            windowSizeMayChange |= measureHierarchy(host, lp, mView.getContext().getResources(), desiredWindowWidth, desiredWindowHeight);
        }
    }
    if (layoutRequested) {
        // Clear this now, so that if anything requests a layout in the
        // rest of this function we will catch it and re-run a full
        // layout pass.
        mLayoutRequested = false;
    }
    boolean windowShouldResize = layoutRequested && windowSizeMayChange && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && frame.width() < desiredWindowWidth && frame.width() != mWidth) || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && frame.height() < desiredWindowHeight && frame.height() != mHeight));
    windowShouldResize |= mDragResizing && mResizeMode == RESIZE_MODE_FREEFORM;
    // If the activity was just relaunched, it might have unfrozen the task bounds (while
    // relaunching), so we need to force a call into window manager to pick up the latest
    // bounds.
    windowShouldResize |= mActivityRelaunched;
    // Determine whether to compute insets.
    // If there are no inset listeners remaining then we may still need to compute
    // insets in case the old insets were non-empty and must be reset.
    final boolean computesInternalInsets = mAttachInfo.mTreeObserver.hasComputeInternalInsetsListeners() || mAttachInfo.mHasNonEmptyGivenInternalInsets;
    boolean insetsPending = false;
    int relayoutResult = 0;
    boolean updatedConfiguration = false;
    final int surfaceGenerationId = mSurface.getGenerationId();
    final boolean isViewVisible = viewVisibility == View.VISIBLE;
    if (mFirst || windowShouldResize || insetsChanged || viewVisibilityChanged || params != null || mForceNextWindowRelayout) {
        mForceNextWindowRelayout = false;
        if (isViewVisible) {
            // If this window is giving internal insets to the window
            // manager, and it is being added or changing its visibility,
            // then we want to first give the window manager "fake"
            // insets to cause it to effectively ignore the content of
            // the window during layout.  This avoids it briefly causing
            // other windows to resize/move based on the raw frame of the
            // window, waiting until we can finish laying out this window
            // and get back to the window manager with the ultimately
            // computed insets.
            insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged);
        }
        if (mSurfaceHolder != null) {
            mSurfaceHolder.mSurfaceLock.lock();
            mDrawingAllowed = true;
        }
        boolean hwInitialized = false;
        boolean contentInsetsChanged = false;
        boolean hadSurface = mSurface.isValid();
        try {
            if (DEBUG_LAYOUT) {
                Log.i(mTag, "host=w:" + host.getMeasuredWidth() + ", h:" + host.getMeasuredHeight() + ", params=" + params);
            }
            if (mAttachInfo.mHardwareRenderer != null) {
                // and stop using the surface in case it gets destroyed.
                if (mAttachInfo.mHardwareRenderer.pauseSurface(mSurface)) {
                    // Animations were running so we need to push a frame
                    // to resume them
                    mDirty.set(0, 0, mWidth, mHeight);
                }
                mChoreographer.mFrameInfo.addFlags(FrameInfo.FLAG_WINDOW_LAYOUT_CHANGED);
            }
            relayoutResult = relayoutWindow(params, viewVisibility, insetsPending);
            if (DEBUG_LAYOUT)
                Log.v(mTag, "relayout: frame=" + frame.toShortString() + " overscan=" + mPendingOverscanInsets.toShortString() + " content=" + mPendingContentInsets.toShortString() + " visible=" + mPendingVisibleInsets.toShortString() + " visible=" + mPendingStableInsets.toShortString() + " outsets=" + mPendingOutsets.toShortString() + " surface=" + mSurface);
            if (mPendingConfiguration.seq != 0) {
                if (DEBUG_CONFIGURATION)
                    Log.v(mTag, "Visible with new config: " + mPendingConfiguration);
                updateConfiguration(new Configuration(mPendingConfiguration), !mFirst);
                mPendingConfiguration.seq = 0;
                updatedConfiguration = true;
            }
            final boolean overscanInsetsChanged = !mPendingOverscanInsets.equals(mAttachInfo.mOverscanInsets);
            contentInsetsChanged = !mPendingContentInsets.equals(mAttachInfo.mContentInsets);
            final boolean visibleInsetsChanged = !mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets);
            final boolean stableInsetsChanged = !mPendingStableInsets.equals(mAttachInfo.mStableInsets);
            final boolean outsetsChanged = !mPendingOutsets.equals(mAttachInfo.mOutsets);
            final boolean surfaceSizeChanged = (relayoutResult & WindowManagerGlobal.RELAYOUT_RES_SURFACE_RESIZED) != 0;
            final boolean alwaysConsumeNavBarChanged = mPendingAlwaysConsumeNavBar != mAttachInfo.mAlwaysConsumeNavBar;
            if (contentInsetsChanged) {
                mAttachInfo.mContentInsets.set(mPendingContentInsets);
                if (DEBUG_LAYOUT)
                    Log.v(mTag, "Content insets changing to: " + mAttachInfo.mContentInsets);
            }
            if (overscanInsetsChanged) {
                mAttachInfo.mOverscanInsets.set(mPendingOverscanInsets);
                if (DEBUG_LAYOUT)
                    Log.v(mTag, "Overscan insets changing to: " + mAttachInfo.mOverscanInsets);
                // Need to relayout with content insets.
                contentInsetsChanged = true;
            }
            if (stableInsetsChanged) {
                mAttachInfo.mStableInsets.set(mPendingStableInsets);
                if (DEBUG_LAYOUT)
                    Log.v(mTag, "Decor insets changing to: " + mAttachInfo.mStableInsets);
                // Need to relayout with content insets.
                contentInsetsChanged = true;
            }
            if (alwaysConsumeNavBarChanged) {
                mAttachInfo.mAlwaysConsumeNavBar = mPendingAlwaysConsumeNavBar;
                contentInsetsChanged = true;
            }
            if (contentInsetsChanged || mLastSystemUiVisibility != mAttachInfo.mSystemUiVisibility || mApplyInsetsRequested || mLastOverscanRequested != mAttachInfo.mOverscanRequested || outsetsChanged) {
                mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility;
                mLastOverscanRequested = mAttachInfo.mOverscanRequested;
                mAttachInfo.mOutsets.set(mPendingOutsets);
                mApplyInsetsRequested = false;
                dispatchApplyInsets(host);
            }
            if (visibleInsetsChanged) {
                mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets);
                if (DEBUG_LAYOUT)
                    Log.v(mTag, "Visible insets changing to: " + mAttachInfo.mVisibleInsets);
            }
            if (!hadSurface) {
                if (mSurface.isValid()) {
                    // If we are creating a new surface, then we need to
                    // completely redraw it.  Also, when we get to the
                    // point of drawing it we will hold off and schedule
                    // a new traversal instead.  This is so we can tell the
                    // window manager about all of the windows being displayed
                    // before actually drawing them, so it can display then
                    // all at once.
                    newSurface = true;
                    mFullRedrawNeeded = true;
                    mPreviousTransparentRegion.setEmpty();
                    // will be transparent
                    if (mAttachInfo.mHardwareRenderer != null) {
                        try {
                            hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mSurface);
                            if (hwInitialized && (host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) == 0) {
                                // Don't pre-allocate if transparent regions
                                // are requested as they may not be needed
                                mSurface.allocateBuffers();
                            }
                        } catch (OutOfResourcesException e) {
                            handleOutOfResourcesException(e);
                            return;
                        }
                    }
                }
            } else if (!mSurface.isValid()) {
                // positions.
                if (mLastScrolledFocus != null) {
                    mLastScrolledFocus.clear();
                }
                mScrollY = mCurScrollY = 0;
                if (mView instanceof RootViewSurfaceTaker) {
                    ((RootViewSurfaceTaker) mView).onRootViewScrollYChanged(mCurScrollY);
                }
                if (mScroller != null) {
                    mScroller.abortAnimation();
                }
                // Our surface is gone
                if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) {
                    mAttachInfo.mHardwareRenderer.destroy();
                }
            } else if ((surfaceGenerationId != mSurface.getGenerationId() || surfaceSizeChanged) && mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) {
                mFullRedrawNeeded = true;
                try {
                    // Need to do updateSurface (which leads to CanvasContext::setSurface and
                    // re-create the EGLSurface) if either the Surface changed (as indicated by
                    // generation id), or WindowManager changed the surface size. The latter is
                    // because on some chips, changing the consumer side's BufferQueue size may
                    // not take effect immediately unless we create a new EGLSurface.
                    // Note that frame size change doesn't always imply surface size change (eg.
                    // drag resizing uses fullscreen surface), need to check surfaceSizeChanged
                    // flag from WindowManager.
                    mAttachInfo.mHardwareRenderer.updateSurface(mSurface);
                } catch (OutOfResourcesException e) {
                    handleOutOfResourcesException(e);
                    return;
                }
            }
            final boolean freeformResizing = (relayoutResult & WindowManagerGlobal.RELAYOUT_RES_DRAG_RESIZING_FREEFORM) != 0;
            final boolean dockedResizing = (relayoutResult & WindowManagerGlobal.RELAYOUT_RES_DRAG_RESIZING_DOCKED) != 0;
            final boolean dragResizing = freeformResizing || dockedResizing;
            if (mDragResizing != dragResizing) {
                if (dragResizing) {
                    mResizeMode = freeformResizing ? RESIZE_MODE_FREEFORM : RESIZE_MODE_DOCKED_DIVIDER;
                    startDragResizing(mPendingBackDropFrame, mWinFrame.equals(mPendingBackDropFrame), mPendingVisibleInsets, mPendingStableInsets, mResizeMode);
                } else {
                    // We shouldn't come here, but if we come we should end the resize.
                    endDragResizing();
                }
            }
            if (!USE_MT_RENDERER) {
                if (dragResizing) {
                    mCanvasOffsetX = mWinFrame.left;
                    mCanvasOffsetY = mWinFrame.top;
                } else {
                    mCanvasOffsetX = mCanvasOffsetY = 0;
                }
            }
        } catch (RemoteException e) {
        }
        if (DEBUG_ORIENTATION)
            Log.v(TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface);
        mAttachInfo.mWindowLeft = frame.left;
        mAttachInfo.mWindowTop = frame.top;
        // the window session beforehand.
        if (mWidth != frame.width() || mHeight != frame.height()) {
            mWidth = frame.width();
            mHeight = frame.height();
        }
        if (mSurfaceHolder != null) {
            // The app owns the surface; tell it about what is going on.
            if (mSurface.isValid()) {
                // XXX .copyFrom() doesn't work!
                //mSurfaceHolder.mSurface.copyFrom(mSurface);
                mSurfaceHolder.mSurface = mSurface;
            }
            mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight);
            mSurfaceHolder.mSurfaceLock.unlock();
            if (mSurface.isValid()) {
                if (!hadSurface) {
                    mSurfaceHolder.ungetCallbacks();
                    mIsCreating = true;
                    mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder);
                    SurfaceHolder.Callback[] callbacks = mSurfaceHolder.getCallbacks();
                    if (callbacks != null) {
                        for (SurfaceHolder.Callback c : callbacks) {
                            c.surfaceCreated(mSurfaceHolder);
                        }
                    }
                    surfaceChanged = true;
                }
                if (surfaceChanged || surfaceGenerationId != mSurface.getGenerationId()) {
                    mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, lp.format, mWidth, mHeight);
                    SurfaceHolder.Callback[] callbacks = mSurfaceHolder.getCallbacks();
                    if (callbacks != null) {
                        for (SurfaceHolder.Callback c : callbacks) {
                            c.surfaceChanged(mSurfaceHolder, lp.format, mWidth, mHeight);
                        }
                    }
                }
                mIsCreating = false;
            } else if (hadSurface) {
                mSurfaceHolder.ungetCallbacks();
                SurfaceHolder.Callback[] callbacks = mSurfaceHolder.getCallbacks();
                mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder);
                if (callbacks != null) {
                    for (SurfaceHolder.Callback c : callbacks) {
                        c.surfaceDestroyed(mSurfaceHolder);
                    }
                }
                mSurfaceHolder.mSurfaceLock.lock();
                try {
                    mSurfaceHolder.mSurface = new Surface();
                } finally {
                    mSurfaceHolder.mSurfaceLock.unlock();
                }
            }
        }
        final ThreadedRenderer hardwareRenderer = mAttachInfo.mHardwareRenderer;
        if (hardwareRenderer != null && hardwareRenderer.isEnabled()) {
            if (hwInitialized || mWidth != hardwareRenderer.getWidth() || mHeight != hardwareRenderer.getHeight() || mNeedsHwRendererSetup) {
                hardwareRenderer.setup(mWidth, mHeight, mAttachInfo, mWindowAttributes.surfaceInsets);
                mNeedsHwRendererSetup = false;
            }
        }
        if (!mStopped || mReportNextDraw) {
            boolean focusChangedDueToTouchMode = ensureTouchModeLocally((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0);
            if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight() || contentInsetsChanged || updatedConfiguration) {
                int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width);
                int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height);
                if (DEBUG_LAYOUT)
                    Log.v(mTag, "Ooops, something changed!  mWidth=" + mWidth + " measuredWidth=" + host.getMeasuredWidth() + " mHeight=" + mHeight + " measuredHeight=" + host.getMeasuredHeight() + " coveredInsetsChanged=" + contentInsetsChanged);
                // Ask host how big it wants to be
                performMeasure(childWidthMeasureSpec, childHeightMeasureSpec);
                // Implementation of weights from WindowManager.LayoutParams
                // We just grow the dimensions as needed and re-measure if
                // needs be
                int width = host.getMeasuredWidth();
                int height = host.getMeasuredHeight();
                boolean measureAgain = false;
                if (lp.horizontalWeight > 0.0f) {
                    width += (int) ((mWidth - width) * lp.horizontalWeight);
                    childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, MeasureSpec.EXACTLY);
                    measureAgain = true;
                }
                if (lp.verticalWeight > 0.0f) {
                    height += (int) ((mHeight - height) * lp.verticalWeight);
                    childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY);
                    measureAgain = true;
                }
                if (measureAgain) {
                    if (DEBUG_LAYOUT)
                        Log.v(mTag, "And hey let's measure once more: width=" + width + " height=" + height);
                    performMeasure(childWidthMeasureSpec, childHeightMeasureSpec);
                }
                layoutRequested = true;
            }
        }
    } else {
        // Not the first pass and no window/insets/visibility change but the window
        // may have moved and we need check that and if so to update the left and right
        // in the attach info. We translate only the window frame since on window move
        // the window manager tells us only for the new frame but the insets are the
        // same and we do not want to translate them more than once.
        maybeHandleWindowMove(frame);
    }
    final boolean didLayout = layoutRequested && (!mStopped || mReportNextDraw);
    boolean triggerGlobalLayoutListener = didLayout || mAttachInfo.mRecomputeGlobalAttributes;
    if (didLayout) {
        performLayout(lp, mWidth, mHeight);
        if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) {
            // start out transparent
            // TODO: AVOID THAT CALL BY CACHING THE RESULT?
            host.getLocationInWindow(mTmpLocation);
            mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], mTmpLocation[0] + host.mRight - host.mLeft, mTmpLocation[1] + host.mBottom - host.mTop);
            host.gatherTransparentRegion(mTransparentRegion);
            if (mTranslator != null) {
                mTranslator.translateRegionInWindowToScreen(mTransparentRegion);
            }
            if (!mTransparentRegion.equals(mPreviousTransparentRegion)) {
                mPreviousTransparentRegion.set(mTransparentRegion);
                mFullRedrawNeeded = true;
                // reconfigure window manager
                try {
                    mWindowSession.setTransparentRegion(mWindow, mTransparentRegion);
                } catch (RemoteException e) {
                }
            }
        }
        if (DBG) {
            System.out.println("======================================");
            System.out.println("performTraversals -- after setFrame");
            host.debug();
        }
    }
    if (triggerGlobalLayoutListener) {
        mAttachInfo.mRecomputeGlobalAttributes = false;
        mAttachInfo.mTreeObserver.dispatchOnGlobalLayout();
    }
    if (computesInternalInsets) {
        // Clear the original insets.
        final ViewTreeObserver.InternalInsetsInfo insets = mAttachInfo.mGivenInternalInsets;
        insets.reset();
        // Compute new insets in place.
        mAttachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets);
        mAttachInfo.mHasNonEmptyGivenInternalInsets = !insets.isEmpty();
        // Tell the window manager.
        if (insetsPending || !mLastGivenInsets.equals(insets)) {
            mLastGivenInsets.set(insets);
            // Translate insets to screen coordinates if needed.
            final Rect contentInsets;
            final Rect visibleInsets;
            final Region touchableRegion;
            if (mTranslator != null) {
                contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets);
                visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets);
                touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion);
            } else {
                contentInsets = insets.contentInsets;
                visibleInsets = insets.visibleInsets;
                touchableRegion = insets.touchableRegion;
            }
            try {
                mWindowSession.setInsets(mWindow, insets.mTouchableInsets, contentInsets, visibleInsets, touchableRegion);
            } catch (RemoteException e) {
            }
        }
    }
    if (mFirst) {
        // handle first focus request
        if (DEBUG_INPUT_RESIZE)
            Log.v(mTag, "First: mView.hasFocus()=" + mView.hasFocus());
        if (mView != null) {
            if (!mView.hasFocus()) {
                mView.requestFocus(View.FOCUS_FORWARD);
                if (DEBUG_INPUT_RESIZE)
                    Log.v(mTag, "First: requested focused view=" + mView.findFocus());
            } else {
                if (DEBUG_INPUT_RESIZE)
                    Log.v(mTag, "First: existing focused view=" + mView.findFocus());
            }
        }
    }
    final boolean changedVisibility = (viewVisibilityChanged || mFirst) && isViewVisible;
    final boolean hasWindowFocus = mAttachInfo.mHasWindowFocus && isViewVisible;
    final boolean regainedFocus = hasWindowFocus && mLostWindowFocus;
    if (regainedFocus) {
        mLostWindowFocus = false;
    } else if (!hasWindowFocus && mHadWindowFocus) {
        mLostWindowFocus = true;
    }
    if (changedVisibility || regainedFocus) {
        // Toasts are presented as notifications - don't present them as windows as well
        boolean isToast = (mWindowAttributes == null) ? false : (mWindowAttributes.type == WindowManager.LayoutParams.TYPE_TOAST);
        if (!isToast) {
            host.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
        }
    }
    mFirst = false;
    mWillDrawSoon = false;
    mNewSurfaceNeeded = false;
    mActivityRelaunched = false;
    mViewVisibility = viewVisibility;
    mHadWindowFocus = hasWindowFocus;
    if (hasWindowFocus && !isInLocalFocusMode()) {
        final boolean imTarget = WindowManager.LayoutParams.mayUseInputMethod(mWindowAttributes.flags);
        if (imTarget != mLastWasImTarget) {
            mLastWasImTarget = imTarget;
            InputMethodManager imm = InputMethodManager.peekInstance();
            if (imm != null && imTarget) {
                imm.onPreWindowFocus(mView, hasWindowFocus);
                imm.onPostWindowFocus(mView, mView.findFocus(), mWindowAttributes.softInputMode, !mHasHadWindowFocus, mWindowAttributes.flags);
            }
        }
    }
    // Remember if we must report the next draw.
    if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) {
        mReportNextDraw = true;
    }
    boolean cancelDraw = mAttachInfo.mTreeObserver.dispatchOnPreDraw() || !isViewVisible;
    if (!cancelDraw && !newSurface) {
        if (mPendingTransitions != null && mPendingTransitions.size() > 0) {
            for (int i = 0; i < mPendingTransitions.size(); ++i) {
                mPendingTransitions.get(i).startChangingAnimations();
            }
            mPendingTransitions.clear();
        }
        performDraw();
    } else {
        if (isViewVisible) {
            // Try again
            scheduleTraversals();
        } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) {
            for (int i = 0; i < mPendingTransitions.size(); ++i) {
                mPendingTransitions.get(i).endChangingAnimations();
            }
            mPendingTransitions.clear();
        }
    }
    mIsInTraversal = false;
}

Example 3 with RootViewSurfaceTaker

use of com.android.internal.view.RootViewSurfaceTaker in project android_frameworks_base by ParanoidAndroid.

the class ViewRootImpl method setView.

/**
     * We have one child
     */
public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) {
    synchronized (this) {
        if (mView == null) {
            mView = view;
            mViewLayoutDirectionInitial = mView.getRawLayoutDirection();
            mFallbackEventHandler.setView(view);
            mWindowAttributes.copyFrom(attrs);
            if (mWindowAttributes.packageName == null) {
                mWindowAttributes.packageName = mBasePackageName;
            }
            attrs = mWindowAttributes;
            // Keep track of the actual window flags supplied by the client.
            mClientWindowLayoutFlags = attrs.flags;
            setAccessibilityFocus(null, null);
            if (view instanceof RootViewSurfaceTaker) {
                mSurfaceHolderCallback = ((RootViewSurfaceTaker) view).willYouTakeTheSurface();
                if (mSurfaceHolderCallback != null) {
                    mSurfaceHolder = new TakenSurfaceHolder();
                    mSurfaceHolder.setFormat(PixelFormat.UNKNOWN);
                }
            }
            CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get();
            mTranslator = compatibilityInfo.getTranslator();
            // If the application owns the surface, don't enable hardware acceleration
            if (mSurfaceHolder == null) {
                enableHardwareAcceleration(mView.getContext(), attrs);
            }
            boolean restore = false;
            if (mTranslator != null) {
                mSurface.setCompatibilityTranslator(mTranslator);
                restore = true;
                attrs.backup();
                mTranslator.translateWindowLayout(attrs);
            }
            if (DEBUG_LAYOUT)
                Log.d(TAG, "WindowLayout in setView:" + attrs);
            if (!compatibilityInfo.supportsScreen()) {
                attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW;
                mLastInCompatMode = true;
            }
            mSoftInputMode = attrs.softInputMode;
            mWindowAttributesChanged = true;
            mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED;
            mAttachInfo.mRootView = view;
            mAttachInfo.mScalingRequired = mTranslator != null;
            mAttachInfo.mApplicationScale = mTranslator == null ? 1.0f : mTranslator.applicationScale;
            if (panelParentView != null) {
                mAttachInfo.mPanelParentWindowToken = panelParentView.getApplicationWindowToken();
            }
            mAdded = true;
            int res;
            /* = WindowManagerImpl.ADD_OKAY; */
            // Schedule the first layout -before- adding to the window
            // manager, to make sure we do the relayout before receiving
            // any other events from the system.
            requestLayout();
            if ((mWindowAttributes.inputFeatures & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) {
                mInputChannel = new InputChannel();
            }
            try {
                mOrigWindowType = mWindowAttributes.type;
                mAttachInfo.mRecomputeGlobalAttributes = true;
                collectViewAttributes();
                res = mWindowSession.addToDisplay(mWindow, mSeq, mWindowAttributes, getHostVisibility(), mDisplay.getDisplayId(), mAttachInfo.mContentInsets, mInputChannel);
            } catch (RemoteException e) {
                mAdded = false;
                mView = null;
                mAttachInfo.mRootView = null;
                mInputChannel = null;
                mFallbackEventHandler.setView(null);
                unscheduleTraversals();
                setAccessibilityFocus(null, null);
                throw new RuntimeException("Adding window failed", e);
            } finally {
                if (restore) {
                    attrs.restore();
                }
            }
            if (mTranslator != null) {
                mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets);
            }
            mPendingOverscanInsets.set(0, 0, 0, 0);
            mPendingContentInsets.set(mAttachInfo.mContentInsets);
            mPendingVisibleInsets.set(0, 0, 0, 0);
            if (DEBUG_LAYOUT)
                Log.v(TAG, "Added window " + mWindow);
            if (res < WindowManagerGlobal.ADD_OKAY) {
                mAttachInfo.mRootView = null;
                mAdded = false;
                mFallbackEventHandler.setView(null);
                unscheduleTraversals();
                setAccessibilityFocus(null, null);
                switch(res) {
                    case WindowManagerGlobal.ADD_BAD_APP_TOKEN:
                    case WindowManagerGlobal.ADD_BAD_SUBWINDOW_TOKEN:
                        throw new WindowManager.BadTokenException("Unable to add window -- token " + attrs.token + " is not valid; is your activity running?");
                    case WindowManagerGlobal.ADD_NOT_APP_TOKEN:
                        throw new WindowManager.BadTokenException("Unable to add window -- token " + attrs.token + " is not for an application");
                    case WindowManagerGlobal.ADD_APP_EXITING:
                        throw new WindowManager.BadTokenException("Unable to add window -- app for token " + attrs.token + " is exiting");
                    case WindowManagerGlobal.ADD_DUPLICATE_ADD:
                        throw new WindowManager.BadTokenException("Unable to add window -- window " + mWindow + " has already been added");
                    case WindowManagerGlobal.ADD_STARTING_NOT_NEEDED:
                        // right away, anyway.
                        return;
                    case WindowManagerGlobal.ADD_MULTIPLE_SINGLETON:
                        throw new WindowManager.BadTokenException("Unable to add window " + mWindow + " -- another window of this type already exists");
                    case WindowManagerGlobal.ADD_PERMISSION_DENIED:
                        throw new WindowManager.BadTokenException("Unable to add window " + mWindow + " -- permission denied for this window type");
                    case WindowManagerGlobal.ADD_INVALID_DISPLAY:
                        throw new WindowManager.InvalidDisplayException("Unable to add window " + mWindow + " -- the specified display can not be found");
                }
                throw new RuntimeException("Unable to add window -- unknown error code " + res);
            }
            if (view instanceof RootViewSurfaceTaker) {
                mInputQueueCallback = ((RootViewSurfaceTaker) view).willYouTakeTheInputQueue();
            }
            if (mInputChannel != null) {
                if (mInputQueueCallback != null) {
                    mInputQueue = new InputQueue();
                    mInputQueueCallback.onInputQueueCreated(mInputQueue);
                }
                mInputEventReceiver = new WindowInputEventReceiver(mInputChannel, Looper.myLooper());
            }
            view.assignParent(this);
            mAddedTouchMode = (res & WindowManagerGlobal.ADD_FLAG_IN_TOUCH_MODE) != 0;
            mAppVisible = (res & WindowManagerGlobal.ADD_FLAG_APP_VISIBLE) != 0;
            if (mAccessibilityManager.isEnabled()) {
                mAccessibilityInteractionConnectionManager.ensureConnection();
            }
            if (view.getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) {
                view.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES);
            }
            // Set up the input pipeline.
            CharSequence counterSuffix = attrs.getTitle();
            InputStage syntheticStage = new SyntheticInputStage();
            InputStage viewPostImeStage = new ViewPostImeInputStage(syntheticStage);
            InputStage nativePostImeStage = new NativePostImeInputStage(viewPostImeStage, "aq:native-post-ime:" + counterSuffix);
            InputStage earlyPostImeStage = new EarlyPostImeInputStage(nativePostImeStage);
            InputStage imeStage = new ImeInputStage(earlyPostImeStage, "aq:ime:" + counterSuffix);
            InputStage viewPreImeStage = new ViewPreImeInputStage(imeStage);
            InputStage nativePreImeStage = new NativePreImeInputStage(viewPreImeStage, "aq:native-pre-ime:" + counterSuffix);
            mFirstInputStage = nativePreImeStage;
            mFirstPostImeInputStage = earlyPostImeStage;
            mPendingInputEventQueueLengthCounterName = "aq:pending:" + counterSuffix;
        }
    }
}

Example 4 with RootViewSurfaceTaker

use of com.android.internal.view.RootViewSurfaceTaker in project XobotOS by xamarin.

the class ViewRootImpl method setView.

/**
     * We have one child
     */
public void setView(View view, WindowManager.LayoutParams attrs, View panelParentView) {
    synchronized (this) {
        if (mView == null) {
            mView = view;
            mFallbackEventHandler.setView(view);
            mWindowAttributes.copyFrom(attrs);
            attrs = mWindowAttributes;
            if (view instanceof RootViewSurfaceTaker) {
                mSurfaceHolderCallback = ((RootViewSurfaceTaker) view).willYouTakeTheSurface();
                if (mSurfaceHolderCallback != null) {
                    mSurfaceHolder = new TakenSurfaceHolder();
                    mSurfaceHolder.setFormat(PixelFormat.UNKNOWN);
                }
            }
            // If the application owns the surface, don't enable hardware acceleration
            if (mSurfaceHolder == null) {
                enableHardwareAcceleration(attrs);
            }
            CompatibilityInfo compatibilityInfo = mCompatibilityInfo.get();
            mTranslator = compatibilityInfo.getTranslator();
            if (mTranslator != null) {
                mSurface.setCompatibilityTranslator(mTranslator);
            }
            boolean restore = false;
            if (mTranslator != null) {
                restore = true;
                attrs.backup();
                mTranslator.translateWindowLayout(attrs);
            }
            if (DEBUG_LAYOUT)
                Log.d(TAG, "WindowLayout in setView:" + attrs);
            if (!compatibilityInfo.supportsScreen()) {
                attrs.flags |= WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW;
                mLastInCompatMode = true;
            }
            mSoftInputMode = attrs.softInputMode;
            mWindowAttributesChanged = true;
            mWindowAttributesChangesFlag = WindowManager.LayoutParams.EVERYTHING_CHANGED;
            mAttachInfo.mRootView = view;
            mAttachInfo.mScalingRequired = mTranslator != null;
            mAttachInfo.mApplicationScale = mTranslator == null ? 1.0f : mTranslator.applicationScale;
            if (panelParentView != null) {
                mAttachInfo.mPanelParentWindowToken = panelParentView.getApplicationWindowToken();
            }
            mAdded = true;
            int res;
            /* = WindowManagerImpl.ADD_OKAY; */
            // Schedule the first layout -before- adding to the window
            // manager, to make sure we do the relayout before receiving
            // any other events from the system.
            requestLayout();
            if ((mWindowAttributes.inputFeatures & WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL) == 0) {
                mInputChannel = new InputChannel();
            }
            try {
                mOrigWindowType = mWindowAttributes.type;
                res = sWindowSession.add(mWindow, mSeq, mWindowAttributes, getHostVisibility(), mAttachInfo.mContentInsets, mInputChannel);
            } catch (RemoteException e) {
                mAdded = false;
                mView = null;
                mAttachInfo.mRootView = null;
                mInputChannel = null;
                mFallbackEventHandler.setView(null);
                unscheduleTraversals();
                throw new RuntimeException("Adding window failed", e);
            } finally {
                if (restore) {
                    attrs.restore();
                }
            }
            if (mTranslator != null) {
                mTranslator.translateRectInScreenToAppWindow(mAttachInfo.mContentInsets);
            }
            mPendingContentInsets.set(mAttachInfo.mContentInsets);
            mPendingVisibleInsets.set(0, 0, 0, 0);
            if (DEBUG_LAYOUT)
                Log.v(TAG, "Added window " + mWindow);
            if (res < WindowManagerImpl.ADD_OKAY) {
                mView = null;
                mAttachInfo.mRootView = null;
                mAdded = false;
                mFallbackEventHandler.setView(null);
                unscheduleTraversals();
                switch(res) {
                    case WindowManagerImpl.ADD_BAD_APP_TOKEN:
                    case WindowManagerImpl.ADD_BAD_SUBWINDOW_TOKEN:
                        throw new WindowManagerImpl.BadTokenException("Unable to add window -- token " + attrs.token + " is not valid; is your activity running?");
                    case WindowManagerImpl.ADD_NOT_APP_TOKEN:
                        throw new WindowManagerImpl.BadTokenException("Unable to add window -- token " + attrs.token + " is not for an application");
                    case WindowManagerImpl.ADD_APP_EXITING:
                        throw new WindowManagerImpl.BadTokenException("Unable to add window -- app for token " + attrs.token + " is exiting");
                    case WindowManagerImpl.ADD_DUPLICATE_ADD:
                        throw new WindowManagerImpl.BadTokenException("Unable to add window -- window " + mWindow + " has already been added");
                    case WindowManagerImpl.ADD_STARTING_NOT_NEEDED:
                        // right away, anyway.
                        return;
                    case WindowManagerImpl.ADD_MULTIPLE_SINGLETON:
                        throw new WindowManagerImpl.BadTokenException("Unable to add window " + mWindow + " -- another window of this type already exists");
                    case WindowManagerImpl.ADD_PERMISSION_DENIED:
                        throw new WindowManagerImpl.BadTokenException("Unable to add window " + mWindow + " -- permission denied for this window type");
                }
                throw new RuntimeException("Unable to add window -- unknown error code " + res);
            }
            if (view instanceof RootViewSurfaceTaker) {
                mInputQueueCallback = ((RootViewSurfaceTaker) view).willYouTakeTheInputQueue();
            }
            if (mInputChannel != null) {
                if (mInputQueueCallback != null) {
                    mInputQueue = new InputQueue(mInputChannel);
                    mInputQueueCallback.onInputQueueCreated(mInputQueue);
                } else {
                    InputQueue.registerInputChannel(mInputChannel, mInputHandler, Looper.myQueue());
                }
            }
            view.assignParent(this);
            mAddedTouchMode = (res & WindowManagerImpl.ADD_FLAG_IN_TOUCH_MODE) != 0;
            mAppVisible = (res & WindowManagerImpl.ADD_FLAG_APP_VISIBLE) != 0;
            if (mAccessibilityManager.isEnabled()) {
                mAccessibilityInteractionConnectionManager.ensureConnection();
            }
        }
    }
}

Example 5 with RootViewSurfaceTaker

use of com.android.internal.view.RootViewSurfaceTaker in project platform_frameworks_base by android.

the class ViewRootImpl method performTraversals.

private void performTraversals() {
    // cache mView since it is used so much below...
    final View host = mView;
    if (DBG) {
        System.out.println("======================================");
        System.out.println("performTraversals");
        host.debug();
    }
    if (host == null || !mAdded)
        return;
    mIsInTraversal = true;
    mWillDrawSoon = true;
    boolean windowSizeMayChange = false;
    boolean newSurface = false;
    boolean surfaceChanged = false;
    WindowManager.LayoutParams lp = mWindowAttributes;
    int desiredWindowWidth;
    int desiredWindowHeight;
    final int viewVisibility = getHostVisibility();
    final boolean viewVisibilityChanged = !mFirst && (mViewVisibility != viewVisibility || mNewSurfaceNeeded);
    final boolean viewUserVisibilityChanged = !mFirst && ((mViewVisibility == View.VISIBLE) != (viewVisibility == View.VISIBLE));
    WindowManager.LayoutParams params = null;
    if (mWindowAttributesChanged) {
        mWindowAttributesChanged = false;
        surfaceChanged = true;
        params = lp;
    }
    CompatibilityInfo compatibilityInfo = mDisplay.getDisplayAdjustments().getCompatibilityInfo();
    if (compatibilityInfo.supportsScreen() == mLastInCompatMode) {
        params = lp;
        mFullRedrawNeeded = true;
        mLayoutRequested = true;
        if (mLastInCompatMode) {
            params.privateFlags &= ~WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW;
            mLastInCompatMode = false;
        } else {
            params.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW;
            mLastInCompatMode = true;
        }
    }
    mWindowAttributesChangesFlag = 0;
    Rect frame = mWinFrame;
    if (mFirst) {
        mFullRedrawNeeded = true;
        mLayoutRequested = true;
        if (shouldUseDisplaySize(lp)) {
            // NOTE -- system code, won't try to do compat mode.
            Point size = new Point();
            mDisplay.getRealSize(size);
            desiredWindowWidth = size.x;
            desiredWindowHeight = size.y;
        } else {
            Configuration config = mContext.getResources().getConfiguration();
            desiredWindowWidth = dipToPx(config.screenWidthDp);
            desiredWindowHeight = dipToPx(config.screenHeightDp);
        }
        // We used to use the following condition to choose 32 bits drawing caches:
        // PixelFormat.hasAlpha(lp.format) || lp.format == PixelFormat.RGBX_8888
        // However, windows are now always 32 bits by default, so choose 32 bits
        mAttachInfo.mUse32BitDrawingCache = true;
        mAttachInfo.mHasWindowFocus = false;
        mAttachInfo.mWindowVisibility = viewVisibility;
        mAttachInfo.mRecomputeGlobalAttributes = false;
        mLastConfiguration.setTo(host.getResources().getConfiguration());
        mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility;
        // Set the layout direction if it has not been set before (inherit is the default)
        if (mViewLayoutDirectionInitial == View.LAYOUT_DIRECTION_INHERIT) {
            host.setLayoutDirection(mLastConfiguration.getLayoutDirection());
        }
        host.dispatchAttachedToWindow(mAttachInfo, 0);
        mAttachInfo.mTreeObserver.dispatchOnWindowAttachedChange(true);
        dispatchApplyInsets(host);
    //Log.i(mTag, "Screen on initialized: " + attachInfo.mKeepScreenOn);
    } else {
        desiredWindowWidth = frame.width();
        desiredWindowHeight = frame.height();
        if (desiredWindowWidth != mWidth || desiredWindowHeight != mHeight) {
            if (DEBUG_ORIENTATION)
                Log.v(mTag, "View " + host + " resized to: " + frame);
            mFullRedrawNeeded = true;
            mLayoutRequested = true;
            windowSizeMayChange = true;
        }
    }
    if (viewVisibilityChanged) {
        mAttachInfo.mWindowVisibility = viewVisibility;
        host.dispatchWindowVisibilityChanged(viewVisibility);
        if (viewUserVisibilityChanged) {
            host.dispatchVisibilityAggregated(viewVisibility == View.VISIBLE);
        }
        if (viewVisibility != View.VISIBLE || mNewSurfaceNeeded) {
            endDragResizing();
            destroyHardwareResources();
        }
        if (viewVisibility == View.GONE) {
            // After making a window gone, we will count it as being
            // shown for the first time the next time it gets focus.
            mHasHadWindowFocus = false;
        }
    }
    // Non-visible windows can't hold accessibility focus.
    if (mAttachInfo.mWindowVisibility != View.VISIBLE) {
        host.clearAccessibilityFocus();
    }
    // Execute enqueued actions on every traversal in case a detached view enqueued an action
    getRunQueue().executeActions(mAttachInfo.mHandler);
    boolean insetsChanged = false;
    boolean layoutRequested = mLayoutRequested && (!mStopped || mReportNextDraw);
    if (layoutRequested) {
        final Resources res = mView.getContext().getResources();
        if (mFirst) {
            // make sure touch mode code executes by setting cached value
            // to opposite of the added touch mode.
            mAttachInfo.mInTouchMode = !mAddedTouchMode;
            ensureTouchModeLocally(mAddedTouchMode);
        } else {
            if (!mPendingOverscanInsets.equals(mAttachInfo.mOverscanInsets)) {
                insetsChanged = true;
            }
            if (!mPendingContentInsets.equals(mAttachInfo.mContentInsets)) {
                insetsChanged = true;
            }
            if (!mPendingStableInsets.equals(mAttachInfo.mStableInsets)) {
                insetsChanged = true;
            }
            if (!mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets)) {
                mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets);
                if (DEBUG_LAYOUT)
                    Log.v(mTag, "Visible insets changing to: " + mAttachInfo.mVisibleInsets);
            }
            if (!mPendingOutsets.equals(mAttachInfo.mOutsets)) {
                insetsChanged = true;
            }
            if (mPendingAlwaysConsumeNavBar != mAttachInfo.mAlwaysConsumeNavBar) {
                insetsChanged = true;
            }
            if (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT || lp.height == ViewGroup.LayoutParams.WRAP_CONTENT) {
                windowSizeMayChange = true;
                if (shouldUseDisplaySize(lp)) {
                    // NOTE -- system code, won't try to do compat mode.
                    Point size = new Point();
                    mDisplay.getRealSize(size);
                    desiredWindowWidth = size.x;
                    desiredWindowHeight = size.y;
                } else {
                    Configuration config = res.getConfiguration();
                    desiredWindowWidth = dipToPx(config.screenWidthDp);
                    desiredWindowHeight = dipToPx(config.screenHeightDp);
                }
            }
        }
        // Ask host how big it wants to be
        windowSizeMayChange |= measureHierarchy(host, lp, res, desiredWindowWidth, desiredWindowHeight);
    }
    if (collectViewAttributes()) {
        params = lp;
    }
    if (mAttachInfo.mForceReportNewAttributes) {
        mAttachInfo.mForceReportNewAttributes = false;
        params = lp;
    }
    if (mFirst || mAttachInfo.mViewVisibilityChanged) {
        mAttachInfo.mViewVisibilityChanged = false;
        int resizeMode = mSoftInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST;
        // what mode to use now.
        if (resizeMode == WindowManager.LayoutParams.SOFT_INPUT_ADJUST_UNSPECIFIED) {
            final int N = mAttachInfo.mScrollContainers.size();
            for (int i = 0; i < N; i++) {
                if (mAttachInfo.mScrollContainers.get(i).isShown()) {
                    resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE;
                }
            }
            if (resizeMode == 0) {
                resizeMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN;
            }
            if ((lp.softInputMode & WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) != resizeMode) {
                lp.softInputMode = (lp.softInputMode & ~WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST) | resizeMode;
                params = lp;
            }
        }
    }
    if (params != null) {
        if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) {
            if (!PixelFormat.formatHasAlpha(params.format)) {
                params.format = PixelFormat.TRANSLUCENT;
            }
        }
        mAttachInfo.mOverscanRequested = (params.flags & WindowManager.LayoutParams.FLAG_LAYOUT_IN_OVERSCAN) != 0;
    }
    if (mApplyInsetsRequested) {
        mApplyInsetsRequested = false;
        mLastOverscanRequested = mAttachInfo.mOverscanRequested;
        dispatchApplyInsets(host);
        if (mLayoutRequested) {
            // Short-circuit catching a new layout request here, so
            // we don't need to go through two layout passes when things
            // change due to fitting system windows, which can happen a lot.
            windowSizeMayChange |= measureHierarchy(host, lp, mView.getContext().getResources(), desiredWindowWidth, desiredWindowHeight);
        }
    }
    if (layoutRequested) {
        // Clear this now, so that if anything requests a layout in the
        // rest of this function we will catch it and re-run a full
        // layout pass.
        mLayoutRequested = false;
    }
    boolean windowShouldResize = layoutRequested && windowSizeMayChange && ((mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight()) || (lp.width == ViewGroup.LayoutParams.WRAP_CONTENT && frame.width() < desiredWindowWidth && frame.width() != mWidth) || (lp.height == ViewGroup.LayoutParams.WRAP_CONTENT && frame.height() < desiredWindowHeight && frame.height() != mHeight));
    windowShouldResize |= mDragResizing && mResizeMode == RESIZE_MODE_FREEFORM;
    // If the activity was just relaunched, it might have unfrozen the task bounds (while
    // relaunching), so we need to force a call into window manager to pick up the latest
    // bounds.
    windowShouldResize |= mActivityRelaunched;
    // Determine whether to compute insets.
    // If there are no inset listeners remaining then we may still need to compute
    // insets in case the old insets were non-empty and must be reset.
    final boolean computesInternalInsets = mAttachInfo.mTreeObserver.hasComputeInternalInsetsListeners() || mAttachInfo.mHasNonEmptyGivenInternalInsets;
    boolean insetsPending = false;
    int relayoutResult = 0;
    boolean updatedConfiguration = false;
    final int surfaceGenerationId = mSurface.getGenerationId();
    final boolean isViewVisible = viewVisibility == View.VISIBLE;
    if (mFirst || windowShouldResize || insetsChanged || viewVisibilityChanged || params != null || mForceNextWindowRelayout) {
        mForceNextWindowRelayout = false;
        if (isViewVisible) {
            // If this window is giving internal insets to the window
            // manager, and it is being added or changing its visibility,
            // then we want to first give the window manager "fake"
            // insets to cause it to effectively ignore the content of
            // the window during layout.  This avoids it briefly causing
            // other windows to resize/move based on the raw frame of the
            // window, waiting until we can finish laying out this window
            // and get back to the window manager with the ultimately
            // computed insets.
            insetsPending = computesInternalInsets && (mFirst || viewVisibilityChanged);
        }
        if (mSurfaceHolder != null) {
            mSurfaceHolder.mSurfaceLock.lock();
            mDrawingAllowed = true;
        }
        boolean hwInitialized = false;
        boolean contentInsetsChanged = false;
        boolean hadSurface = mSurface.isValid();
        try {
            if (DEBUG_LAYOUT) {
                Log.i(mTag, "host=w:" + host.getMeasuredWidth() + ", h:" + host.getMeasuredHeight() + ", params=" + params);
            }
            if (mAttachInfo.mHardwareRenderer != null) {
                // and stop using the surface in case it gets destroyed.
                if (mAttachInfo.mHardwareRenderer.pauseSurface(mSurface)) {
                    // Animations were running so we need to push a frame
                    // to resume them
                    mDirty.set(0, 0, mWidth, mHeight);
                }
                mChoreographer.mFrameInfo.addFlags(FrameInfo.FLAG_WINDOW_LAYOUT_CHANGED);
            }
            relayoutResult = relayoutWindow(params, viewVisibility, insetsPending);
            if (DEBUG_LAYOUT)
                Log.v(mTag, "relayout: frame=" + frame.toShortString() + " overscan=" + mPendingOverscanInsets.toShortString() + " content=" + mPendingContentInsets.toShortString() + " visible=" + mPendingVisibleInsets.toShortString() + " visible=" + mPendingStableInsets.toShortString() + " outsets=" + mPendingOutsets.toShortString() + " surface=" + mSurface);
            if (mPendingConfiguration.seq != 0) {
                if (DEBUG_CONFIGURATION)
                    Log.v(mTag, "Visible with new config: " + mPendingConfiguration);
                updateConfiguration(new Configuration(mPendingConfiguration), !mFirst);
                mPendingConfiguration.seq = 0;
                updatedConfiguration = true;
            }
            final boolean overscanInsetsChanged = !mPendingOverscanInsets.equals(mAttachInfo.mOverscanInsets);
            contentInsetsChanged = !mPendingContentInsets.equals(mAttachInfo.mContentInsets);
            final boolean visibleInsetsChanged = !mPendingVisibleInsets.equals(mAttachInfo.mVisibleInsets);
            final boolean stableInsetsChanged = !mPendingStableInsets.equals(mAttachInfo.mStableInsets);
            final boolean outsetsChanged = !mPendingOutsets.equals(mAttachInfo.mOutsets);
            final boolean surfaceSizeChanged = (relayoutResult & WindowManagerGlobal.RELAYOUT_RES_SURFACE_RESIZED) != 0;
            final boolean alwaysConsumeNavBarChanged = mPendingAlwaysConsumeNavBar != mAttachInfo.mAlwaysConsumeNavBar;
            if (contentInsetsChanged) {
                mAttachInfo.mContentInsets.set(mPendingContentInsets);
                if (DEBUG_LAYOUT)
                    Log.v(mTag, "Content insets changing to: " + mAttachInfo.mContentInsets);
            }
            if (overscanInsetsChanged) {
                mAttachInfo.mOverscanInsets.set(mPendingOverscanInsets);
                if (DEBUG_LAYOUT)
                    Log.v(mTag, "Overscan insets changing to: " + mAttachInfo.mOverscanInsets);
                // Need to relayout with content insets.
                contentInsetsChanged = true;
            }
            if (stableInsetsChanged) {
                mAttachInfo.mStableInsets.set(mPendingStableInsets);
                if (DEBUG_LAYOUT)
                    Log.v(mTag, "Decor insets changing to: " + mAttachInfo.mStableInsets);
                // Need to relayout with content insets.
                contentInsetsChanged = true;
            }
            if (alwaysConsumeNavBarChanged) {
                mAttachInfo.mAlwaysConsumeNavBar = mPendingAlwaysConsumeNavBar;
                contentInsetsChanged = true;
            }
            if (contentInsetsChanged || mLastSystemUiVisibility != mAttachInfo.mSystemUiVisibility || mApplyInsetsRequested || mLastOverscanRequested != mAttachInfo.mOverscanRequested || outsetsChanged) {
                mLastSystemUiVisibility = mAttachInfo.mSystemUiVisibility;
                mLastOverscanRequested = mAttachInfo.mOverscanRequested;
                mAttachInfo.mOutsets.set(mPendingOutsets);
                mApplyInsetsRequested = false;
                dispatchApplyInsets(host);
            }
            if (visibleInsetsChanged) {
                mAttachInfo.mVisibleInsets.set(mPendingVisibleInsets);
                if (DEBUG_LAYOUT)
                    Log.v(mTag, "Visible insets changing to: " + mAttachInfo.mVisibleInsets);
            }
            if (!hadSurface) {
                if (mSurface.isValid()) {
                    // If we are creating a new surface, then we need to
                    // completely redraw it.  Also, when we get to the
                    // point of drawing it we will hold off and schedule
                    // a new traversal instead.  This is so we can tell the
                    // window manager about all of the windows being displayed
                    // before actually drawing them, so it can display then
                    // all at once.
                    newSurface = true;
                    mFullRedrawNeeded = true;
                    mPreviousTransparentRegion.setEmpty();
                    // will be transparent
                    if (mAttachInfo.mHardwareRenderer != null) {
                        try {
                            hwInitialized = mAttachInfo.mHardwareRenderer.initialize(mSurface);
                            if (hwInitialized && (host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) == 0) {
                                // Don't pre-allocate if transparent regions
                                // are requested as they may not be needed
                                mSurface.allocateBuffers();
                            }
                        } catch (OutOfResourcesException e) {
                            handleOutOfResourcesException(e);
                            return;
                        }
                    }
                }
            } else if (!mSurface.isValid()) {
                // positions.
                if (mLastScrolledFocus != null) {
                    mLastScrolledFocus.clear();
                }
                mScrollY = mCurScrollY = 0;
                if (mView instanceof RootViewSurfaceTaker) {
                    ((RootViewSurfaceTaker) mView).onRootViewScrollYChanged(mCurScrollY);
                }
                if (mScroller != null) {
                    mScroller.abortAnimation();
                }
                // Our surface is gone
                if (mAttachInfo.mHardwareRenderer != null && mAttachInfo.mHardwareRenderer.isEnabled()) {
                    mAttachInfo.mHardwareRenderer.destroy();
                }
            } else if ((surfaceGenerationId != mSurface.getGenerationId() || surfaceSizeChanged) && mSurfaceHolder == null && mAttachInfo.mHardwareRenderer != null) {
                mFullRedrawNeeded = true;
                try {
                    // Need to do updateSurface (which leads to CanvasContext::setSurface and
                    // re-create the EGLSurface) if either the Surface changed (as indicated by
                    // generation id), or WindowManager changed the surface size. The latter is
                    // because on some chips, changing the consumer side's BufferQueue size may
                    // not take effect immediately unless we create a new EGLSurface.
                    // Note that frame size change doesn't always imply surface size change (eg.
                    // drag resizing uses fullscreen surface), need to check surfaceSizeChanged
                    // flag from WindowManager.
                    mAttachInfo.mHardwareRenderer.updateSurface(mSurface);
                } catch (OutOfResourcesException e) {
                    handleOutOfResourcesException(e);
                    return;
                }
            }
            final boolean freeformResizing = (relayoutResult & WindowManagerGlobal.RELAYOUT_RES_DRAG_RESIZING_FREEFORM) != 0;
            final boolean dockedResizing = (relayoutResult & WindowManagerGlobal.RELAYOUT_RES_DRAG_RESIZING_DOCKED) != 0;
            final boolean dragResizing = freeformResizing || dockedResizing;
            if (mDragResizing != dragResizing) {
                if (dragResizing) {
                    mResizeMode = freeformResizing ? RESIZE_MODE_FREEFORM : RESIZE_MODE_DOCKED_DIVIDER;
                    startDragResizing(mPendingBackDropFrame, mWinFrame.equals(mPendingBackDropFrame), mPendingVisibleInsets, mPendingStableInsets, mResizeMode);
                } else {
                    // We shouldn't come here, but if we come we should end the resize.
                    endDragResizing();
                }
            }
            if (!USE_MT_RENDERER) {
                if (dragResizing) {
                    mCanvasOffsetX = mWinFrame.left;
                    mCanvasOffsetY = mWinFrame.top;
                } else {
                    mCanvasOffsetX = mCanvasOffsetY = 0;
                }
            }
        } catch (RemoteException e) {
        }
        if (DEBUG_ORIENTATION)
            Log.v(TAG, "Relayout returned: frame=" + frame + ", surface=" + mSurface);
        mAttachInfo.mWindowLeft = frame.left;
        mAttachInfo.mWindowTop = frame.top;
        // the window session beforehand.
        if (mWidth != frame.width() || mHeight != frame.height()) {
            mWidth = frame.width();
            mHeight = frame.height();
        }
        if (mSurfaceHolder != null) {
            // The app owns the surface; tell it about what is going on.
            if (mSurface.isValid()) {
                // XXX .copyFrom() doesn't work!
                //mSurfaceHolder.mSurface.copyFrom(mSurface);
                mSurfaceHolder.mSurface = mSurface;
            }
            mSurfaceHolder.setSurfaceFrameSize(mWidth, mHeight);
            mSurfaceHolder.mSurfaceLock.unlock();
            if (mSurface.isValid()) {
                if (!hadSurface) {
                    mSurfaceHolder.ungetCallbacks();
                    mIsCreating = true;
                    mSurfaceHolderCallback.surfaceCreated(mSurfaceHolder);
                    SurfaceHolder.Callback[] callbacks = mSurfaceHolder.getCallbacks();
                    if (callbacks != null) {
                        for (SurfaceHolder.Callback c : callbacks) {
                            c.surfaceCreated(mSurfaceHolder);
                        }
                    }
                    surfaceChanged = true;
                }
                if (surfaceChanged || surfaceGenerationId != mSurface.getGenerationId()) {
                    mSurfaceHolderCallback.surfaceChanged(mSurfaceHolder, lp.format, mWidth, mHeight);
                    SurfaceHolder.Callback[] callbacks = mSurfaceHolder.getCallbacks();
                    if (callbacks != null) {
                        for (SurfaceHolder.Callback c : callbacks) {
                            c.surfaceChanged(mSurfaceHolder, lp.format, mWidth, mHeight);
                        }
                    }
                }
                mIsCreating = false;
            } else if (hadSurface) {
                mSurfaceHolder.ungetCallbacks();
                SurfaceHolder.Callback[] callbacks = mSurfaceHolder.getCallbacks();
                mSurfaceHolderCallback.surfaceDestroyed(mSurfaceHolder);
                if (callbacks != null) {
                    for (SurfaceHolder.Callback c : callbacks) {
                        c.surfaceDestroyed(mSurfaceHolder);
                    }
                }
                mSurfaceHolder.mSurfaceLock.lock();
                try {
                    mSurfaceHolder.mSurface = new Surface();
                } finally {
                    mSurfaceHolder.mSurfaceLock.unlock();
                }
            }
        }
        final ThreadedRenderer hardwareRenderer = mAttachInfo.mHardwareRenderer;
        if (hardwareRenderer != null && hardwareRenderer.isEnabled()) {
            if (hwInitialized || mWidth != hardwareRenderer.getWidth() || mHeight != hardwareRenderer.getHeight() || mNeedsHwRendererSetup) {
                hardwareRenderer.setup(mWidth, mHeight, mAttachInfo, mWindowAttributes.surfaceInsets);
                mNeedsHwRendererSetup = false;
            }
        }
        if (!mStopped || mReportNextDraw) {
            boolean focusChangedDueToTouchMode = ensureTouchModeLocally((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_IN_TOUCH_MODE) != 0);
            if (focusChangedDueToTouchMode || mWidth != host.getMeasuredWidth() || mHeight != host.getMeasuredHeight() || contentInsetsChanged || updatedConfiguration) {
                int childWidthMeasureSpec = getRootMeasureSpec(mWidth, lp.width);
                int childHeightMeasureSpec = getRootMeasureSpec(mHeight, lp.height);
                if (DEBUG_LAYOUT)
                    Log.v(mTag, "Ooops, something changed!  mWidth=" + mWidth + " measuredWidth=" + host.getMeasuredWidth() + " mHeight=" + mHeight + " measuredHeight=" + host.getMeasuredHeight() + " coveredInsetsChanged=" + contentInsetsChanged);
                // Ask host how big it wants to be
                performMeasure(childWidthMeasureSpec, childHeightMeasureSpec);
                // Implementation of weights from WindowManager.LayoutParams
                // We just grow the dimensions as needed and re-measure if
                // needs be
                int width = host.getMeasuredWidth();
                int height = host.getMeasuredHeight();
                boolean measureAgain = false;
                if (lp.horizontalWeight > 0.0f) {
                    width += (int) ((mWidth - width) * lp.horizontalWeight);
                    childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, MeasureSpec.EXACTLY);
                    measureAgain = true;
                }
                if (lp.verticalWeight > 0.0f) {
                    height += (int) ((mHeight - height) * lp.verticalWeight);
                    childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY);
                    measureAgain = true;
                }
                if (measureAgain) {
                    if (DEBUG_LAYOUT)
                        Log.v(mTag, "And hey let's measure once more: width=" + width + " height=" + height);
                    performMeasure(childWidthMeasureSpec, childHeightMeasureSpec);
                }
                layoutRequested = true;
            }
        }
    } else {
        // Not the first pass and no window/insets/visibility change but the window
        // may have moved and we need check that and if so to update the left and right
        // in the attach info. We translate only the window frame since on window move
        // the window manager tells us only for the new frame but the insets are the
        // same and we do not want to translate them more than once.
        maybeHandleWindowMove(frame);
    }
    final boolean didLayout = layoutRequested && (!mStopped || mReportNextDraw);
    boolean triggerGlobalLayoutListener = didLayout || mAttachInfo.mRecomputeGlobalAttributes;
    if (didLayout) {
        performLayout(lp, mWidth, mHeight);
        if ((host.mPrivateFlags & View.PFLAG_REQUEST_TRANSPARENT_REGIONS) != 0) {
            // start out transparent
            // TODO: AVOID THAT CALL BY CACHING THE RESULT?
            host.getLocationInWindow(mTmpLocation);
            mTransparentRegion.set(mTmpLocation[0], mTmpLocation[1], mTmpLocation[0] + host.mRight - host.mLeft, mTmpLocation[1] + host.mBottom - host.mTop);
            host.gatherTransparentRegion(mTransparentRegion);
            if (mTranslator != null) {
                mTranslator.translateRegionInWindowToScreen(mTransparentRegion);
            }
            if (!mTransparentRegion.equals(mPreviousTransparentRegion)) {
                mPreviousTransparentRegion.set(mTransparentRegion);
                mFullRedrawNeeded = true;
                // reconfigure window manager
                try {
                    mWindowSession.setTransparentRegion(mWindow, mTransparentRegion);
                } catch (RemoteException e) {
                }
            }
        }
        if (DBG) {
            System.out.println("======================================");
            System.out.println("performTraversals -- after setFrame");
            host.debug();
        }
    }
    if (triggerGlobalLayoutListener) {
        mAttachInfo.mRecomputeGlobalAttributes = false;
        mAttachInfo.mTreeObserver.dispatchOnGlobalLayout();
    }
    if (computesInternalInsets) {
        // Clear the original insets.
        final ViewTreeObserver.InternalInsetsInfo insets = mAttachInfo.mGivenInternalInsets;
        insets.reset();
        // Compute new insets in place.
        mAttachInfo.mTreeObserver.dispatchOnComputeInternalInsets(insets);
        mAttachInfo.mHasNonEmptyGivenInternalInsets = !insets.isEmpty();
        // Tell the window manager.
        if (insetsPending || !mLastGivenInsets.equals(insets)) {
            mLastGivenInsets.set(insets);
            // Translate insets to screen coordinates if needed.
            final Rect contentInsets;
            final Rect visibleInsets;
            final Region touchableRegion;
            if (mTranslator != null) {
                contentInsets = mTranslator.getTranslatedContentInsets(insets.contentInsets);
                visibleInsets = mTranslator.getTranslatedVisibleInsets(insets.visibleInsets);
                touchableRegion = mTranslator.getTranslatedTouchableArea(insets.touchableRegion);
            } else {
                contentInsets = insets.contentInsets;
                visibleInsets = insets.visibleInsets;
                touchableRegion = insets.touchableRegion;
            }
            try {
                mWindowSession.setInsets(mWindow, insets.mTouchableInsets, contentInsets, visibleInsets, touchableRegion);
            } catch (RemoteException e) {
            }
        }
    }
    if (mFirst) {
        // handle first focus request
        if (DEBUG_INPUT_RESIZE)
            Log.v(mTag, "First: mView.hasFocus()=" + mView.hasFocus());
        if (mView != null) {
            if (!mView.hasFocus()) {
                mView.requestFocus(View.FOCUS_FORWARD);
                if (DEBUG_INPUT_RESIZE)
                    Log.v(mTag, "First: requested focused view=" + mView.findFocus());
            } else {
                if (DEBUG_INPUT_RESIZE)
                    Log.v(mTag, "First: existing focused view=" + mView.findFocus());
            }
        }
    }
    final boolean changedVisibility = (viewVisibilityChanged || mFirst) && isViewVisible;
    final boolean hasWindowFocus = mAttachInfo.mHasWindowFocus && isViewVisible;
    final boolean regainedFocus = hasWindowFocus && mLostWindowFocus;
    if (regainedFocus) {
        mLostWindowFocus = false;
    } else if (!hasWindowFocus && mHadWindowFocus) {
        mLostWindowFocus = true;
    }
    if (changedVisibility || regainedFocus) {
        // Toasts are presented as notifications - don't present them as windows as well
        boolean isToast = (mWindowAttributes == null) ? false : (mWindowAttributes.type == WindowManager.LayoutParams.TYPE_TOAST);
        if (!isToast) {
            host.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
        }
    }
    mFirst = false;
    mWillDrawSoon = false;
    mNewSurfaceNeeded = false;
    mActivityRelaunched = false;
    mViewVisibility = viewVisibility;
    mHadWindowFocus = hasWindowFocus;
    if (hasWindowFocus && !isInLocalFocusMode()) {
        final boolean imTarget = WindowManager.LayoutParams.mayUseInputMethod(mWindowAttributes.flags);
        if (imTarget != mLastWasImTarget) {
            mLastWasImTarget = imTarget;
            InputMethodManager imm = InputMethodManager.peekInstance();
            if (imm != null && imTarget) {
                imm.onPreWindowFocus(mView, hasWindowFocus);
                imm.onPostWindowFocus(mView, mView.findFocus(), mWindowAttributes.softInputMode, !mHasHadWindowFocus, mWindowAttributes.flags);
            }
        }
    }
    // Remember if we must report the next draw.
    if ((relayoutResult & WindowManagerGlobal.RELAYOUT_RES_FIRST_TIME) != 0) {
        mReportNextDraw = true;
    }
    boolean cancelDraw = mAttachInfo.mTreeObserver.dispatchOnPreDraw() || !isViewVisible;
    if (!cancelDraw && !newSurface) {
        if (mPendingTransitions != null && mPendingTransitions.size() > 0) {
            for (int i = 0; i < mPendingTransitions.size(); ++i) {
                mPendingTransitions.get(i).startChangingAnimations();
            }
            mPendingTransitions.clear();
        }
        performDraw();
    } else {
        if (isViewVisible) {
            // Try again
            scheduleTraversals();
        } else if (mPendingTransitions != null && mPendingTransitions.size() > 0) {
            for (int i = 0; i < mPendingTransitions.size(); ++i) {
                mPendingTransitions.get(i).endChangingAnimations();
            }
            mPendingTransitions.clear();
        }
    }
    mIsInTraversal = false;
}