Android/frameworks_base
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge "Place black background only behind nav bar when letterboxed" into oc-dr1-dev

Browse Source
This commit is contained in:
Andrii Kulian
2017-08-15 16:26:04 +00:00
committed by Android (Google) Code Review
parent 684b056531 06ab1e14eb
commit 3289a5a1e0
1 changed files with 55 additions and 46 deletions
Download Patch File Download Diff File Expand all files Collapse all files

101
services/core/java/com/android/server/wm/SurfaceControlWithBackground.java
View File

@@ -29,12 +29,16 @@ import android.view.SurfaceSession;
import static android.view.WindowManager.LayoutParams.FIRST_APPLICATION_WINDOW;
import static android.view.WindowManager.LayoutParams.LAST_APPLICATION_WINDOW;
import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_STARTING;
import static android.view.WindowManagerPolicy.NAV_BAR_BOTTOM;
import static android.view.WindowManagerPolicy.NAV_BAR_LEFT;
import static android.view.WindowManagerPolicy.NAV_BAR_RIGHT;
/**
* SurfaceControl extension that has background sized to match its container.
* SurfaceControl extension that has black background behind navigation bar area for fullscreen
* letterboxed apps.
*/
class SurfaceControlWithBackground extends SurfaceControl {
// SurfaceControl that holds the background behind opaque letterboxed app windows.
// SurfaceControl that holds the background.
private SurfaceControl mBackgroundControl;
// Flag that defines whether the background should be shown.
@@ -51,8 +55,10 @@ class SurfaceControlWithBackground extends SurfaceControl {
private float mLastDsDx = 1, mLastDsDy = 1;
private float mLastX, mLastY;
// Will skip alpha animation for background of starting window.
private boolean mIsStartingWindow;
// SurfaceFlinger doesn't support crop rectangles where width or height is non-positive.
// If we just set an empty crop it will behave as if there is no crop at all.
// To fix this we explicitly hide the surface and won't let it to be shown.
private boolean mHiddenForCrop = false;
public SurfaceControlWithBackground(SurfaceControlWithBackground other) {
super(other);
@@ -76,7 +82,6 @@ class SurfaceControlWithBackground extends SurfaceControl {
mLastWidth = w;
mLastHeight = h;
mWindowSurfaceController.getContainerRect(mTmpContainerRect);
mIsStartingWindow = windowType == TYPE_APPLICATION_STARTING;
mBackgroundControl = new SurfaceControl(s, "Background for - " + name,
mTmpContainerRect.width(), mTmpContainerRect.height(), PixelFormat.OPAQUE,
flags | SurfaceControl.FX_SURFACE_DIM);
@@ -89,10 +94,7 @@ class SurfaceControlWithBackground extends SurfaceControl {
if (mBackgroundControl == null) {
return;
}
// We won't animate alpha for starting window because it will be visible as a flash for user
// when fading out to reveal real app window.
final float backgroundAlpha = mIsStartingWindow && alpha < 1.f ? 0 : alpha;
mBackgroundControl.setAlpha(backgroundAlpha);
mBackgroundControl.setAlpha(alpha);
}
@Override
@@ -146,15 +148,10 @@ class SurfaceControlWithBackground extends SurfaceControl {
if (mBackgroundControl == null) {
return;
}
if (crop.width() < mLastWidth || crop.height() < mLastHeight) {
// We're animating and cropping window, compute the appropriate crop for background.
calculateBgCrop(crop);
mBackgroundControl.setWindowCrop(mTmpContainerRect);
} else {
// When not animating just set crop to container rect.
mWindowSurfaceController.getContainerRect(mTmpContainerRect);
mBackgroundControl.setWindowCrop(mTmpContainerRect);
}
calculateBgCrop(crop);
mBackgroundControl.setWindowCrop(mTmpContainerRect);
mHiddenForCrop = mTmpContainerRect.isEmpty();
updateBackgroundVisibility();
}
@Override
@@ -164,34 +161,24 @@ class SurfaceControlWithBackground extends SurfaceControl {
if (mBackgroundControl == null) {
return;
}
if (crop.width() < mLastWidth || crop.height() < mLastHeight) {
// We're animating and cropping window, compute the appropriate crop for background.
calculateBgCrop(crop);
mBackgroundControl.setFinalCrop(mTmpContainerRect);
} else {
// When not animating just set crop to container rect.
mWindowSurfaceController.getContainerRect(mTmpContainerRect);
mBackgroundControl.setFinalCrop(mTmpContainerRect);
}
mWindowSurfaceController.getContainerRect(mTmpContainerRect);
mBackgroundControl.setFinalCrop(mTmpContainerRect);
}
/** Compute background crop based on current animation progress for main surface control. */
/**
* Compute background crop based on current animation progress for main surface control and
* update {@link #mTmpContainerRect} with new values.
*/
private void calculateBgCrop(Rect crop) {
// Track overall progress of animation by computing cropped portion of status bar.
final Rect contentInsets = mWindowSurfaceController.mAnimator.mWin.mContentInsets;
float d = contentInsets.top == 0 ? 0 : (float) crop.top / contentInsets.top;
if (d > 1.f) {
// We're running expand animation from launcher, won't compute custom bg crop here.
mTmpContainerRect.set(crop);
mTmpContainerRect.setEmpty();
return;
}
// Compute additional offset for the background when app window is positioned not at (0,0).
// E.g. landscape with navigation bar on the left.
final Rect winFrame = mWindowSurfaceController.mAnimator.mWin.mFrame;
final int offsetX = (int) (winFrame.left * mLastDsDx * d + 0.5);
final int offsetY = (int) (winFrame.top * mLastDsDy * d + 0.5);
// Compute new scaled width and height for background that will depend on current animation
// progress. Those consist of current crop rect for the main surface + scaled areas outside
// of letterboxed area.
@@ -201,17 +188,39 @@ class SurfaceControlWithBackground extends SurfaceControl {
// computing correct frames for letterboxed windows in WindowState.
d = d < 0.025f ? 0 : d;
mWindowSurfaceController.getContainerRect(mTmpContainerRect);
final int backgroundWidth =
(int) (crop.width() + (mTmpContainerRect.width() - mLastWidth) * (1 - d) + 0.5);
final int backgroundHeight =
(int) (crop.height() + (mTmpContainerRect.height() - mLastHeight) * (1 - d) + 0.5);
int backgroundWidth = 0, backgroundHeight = 0;
// Compute additional offset for the background when app window is positioned not at (0,0).
// E.g. landscape with navigation bar on the left.
final Rect winFrame = mWindowSurfaceController.mAnimator.mWin.mFrame;
int offsetX = (int)((winFrame.left - mTmpContainerRect.left) * mLastDsDx),
offsetY = (int) ((winFrame.top - mTmpContainerRect.top) * mLastDsDy);
mTmpContainerRect.set(crop);
// Make sure that part of background to left/top is visible and scaled.
mTmpContainerRect.offset(offsetX, offsetY);
// Set correct width/height, so that area to right/bottom is cropped properly.
mTmpContainerRect.right = mTmpContainerRect.left + backgroundWidth;
mTmpContainerRect.bottom = mTmpContainerRect.top + backgroundHeight;
// Position and size background.
final int bgPosition = mWindowSurfaceController.mAnimator.mService.getNavBarPosition();
switch (bgPosition) {
case NAV_BAR_LEFT:
backgroundWidth = (int) ((mTmpContainerRect.width() - mLastWidth) * (1 - d) + 0.5);
backgroundHeight = crop.height();
offsetX += crop.left - backgroundWidth;
offsetY += crop.top;
break;
case NAV_BAR_RIGHT:
backgroundWidth = (int) ((mTmpContainerRect.width() - mLastWidth) * (1 - d) + 0.5);
backgroundHeight = crop.height();
offsetX += crop.right;
offsetY += crop.top;
break;
case NAV_BAR_BOTTOM:
backgroundWidth = crop.width();
backgroundHeight = (int) ((mTmpContainerRect.height() - mLastHeight) * (1 - d)
+ 0.5);
offsetX += crop.left;
offsetY += crop.bottom;
break;
}
mTmpContainerRect.set(offsetX, offsetY, offsetX + backgroundWidth,
offsetY + backgroundHeight);
}
@Override
@@ -317,7 +326,7 @@ class SurfaceControlWithBackground extends SurfaceControl {
return;
}
final AppWindowToken appWindowToken = mWindowSurfaceController.mAnimator.mWin.mAppToken;
if (appWindowToken != null && appWindowToken.fillsParent() && mVisible) {
if (!mHiddenForCrop && mVisible && appWindowToken != null && appWindowToken.fillsParent()) {
mBackgroundControl.show();
} else {
mBackgroundControl.hide();