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-rw-r--r--src/com/android/dialer/list/ListsFragment.java3
-rw-r--r--src/com/android/dialer/widget/OverlappingPaneLayout.java98
2 files changed, 93 insertions, 8 deletions
diff --git a/src/com/android/dialer/list/ListsFragment.java b/src/com/android/dialer/list/ListsFragment.java
index 3de714d11..ab790ed25 100644
--- a/src/com/android/dialer/list/ListsFragment.java
+++ b/src/com/android/dialer/list/ListsFragment.java
@@ -73,6 +73,7 @@ public class ListsFragment extends Fragment implements CallLogQueryHandler.Liste
public interface HostInterface {
public void showCallHistory();
+ public int getActionBarHeight();
}
private ActionBar mActionBar;
@@ -348,6 +349,8 @@ public class ListsFragment extends Fragment implements CallLogQueryHandler.Liste
paneLayout.setCapturableView(mViewPagerTabs);
paneLayout.openPane();
paneLayout.setPanelSlideListener(mPanelSlideListener);
+ paneLayout.setIntermediatePinnedOffset(
+ ((HostInterface) getActivity()).getActionBarHeight());
LayoutTransition transition = paneLayout.getLayoutTransition();
// Turns on animations for all types of layout changes so that they occur for
diff --git a/src/com/android/dialer/widget/OverlappingPaneLayout.java b/src/com/android/dialer/widget/OverlappingPaneLayout.java
index e17194e21..e28bcc578 100644
--- a/src/com/android/dialer/widget/OverlappingPaneLayout.java
+++ b/src/com/android/dialer/widget/OverlappingPaneLayout.java
@@ -44,6 +44,7 @@ import android.view.accessibility.AccessibilityEvent;
*/
public class OverlappingPaneLayout extends ViewGroup {
private static final String TAG = "SlidingPaneLayout";
+ private static final boolean DEBUG = false;
/**
* Default size of the overhang for a pane in the open state.
@@ -92,6 +93,12 @@ public class OverlappingPaneLayout extends ViewGroup {
private float mSlideOffset;
/**
+ * How far the panel is offset from its closed position, in pixels.
+ * range [0, {@link #mSlideRange}] where 0 is completely closed.
+ */
+ private int mSlideOffsetPx;
+
+ /**
* How far in pixels the slideable panel may move.
*/
private int mSlideRange;
@@ -107,6 +114,20 @@ public class OverlappingPaneLayout extends ViewGroup {
*/
private boolean mIsInNestedScroll;
+ /**
+ * Indicates that the layout is currently in the process of a nested pre-scroll operation where
+ * the child is being dragged downwards. If so, we should open the pane up to the maximum
+ * offset defined in {@link #mIntermediateOffset}, and no further.
+ */
+ boolean mInNestedPreScrollDownwards = false;
+
+ /**
+ * Stores an offset used to represent a point somewhere in between the panel's fully closed
+ * state and fully opened state where the panel can be temporarily pinned or opened up to
+ * during scrolling.
+ */
+ private int mIntermediateOffset = 0;
+
private float mInitialMotionX;
private float mInitialMotionY;
@@ -173,6 +194,16 @@ public class OverlappingPaneLayout extends ViewGroup {
}
/**
+ * Set an offset, somewhere in between the panel's fully closed state and fully opened state,
+ * where the panel can be temporarily pinned or opened up to.
+ *
+ * @param offset Offset in pixels
+ */
+ public void setIntermediatePinnedOffset(int offset) {
+ mIntermediateOffset = offset;
+ }
+
+ /**
* Set the view that can be used to start dragging the sliding pane.
*/
public void setCapturableView(View capturableView) {
@@ -525,7 +556,7 @@ public class OverlappingPaneLayout extends ViewGroup {
final int lpMargin = lp.topMargin;
final int pos = (int) (range * mSlideOffset);
yStart += pos + lpMargin;
- mSlideOffset = (float) pos / mSlideRange;
+ updateSlideOffset(pos);
} else {
yStart = nextYStart;
}
@@ -664,6 +695,11 @@ public class OverlappingPaneLayout extends ViewGroup {
return false;
}
+ private void updateSlideOffset(int offsetPx) {
+ mSlideOffsetPx = offsetPx;
+ mSlideOffset = (float) mSlideOffsetPx / mSlideRange;
+ }
+
/**
* Open the sliding pane if it is currently slideable. If first layout
* has already completed this will animate.
@@ -685,13 +721,13 @@ public class OverlappingPaneLayout extends ViewGroup {
}
/**
- * Check if the layout is completely open. It can be open either because the slider
+ * Check if the layout is open. It can be open either because the slider
* itself is open revealing the left pane, or if all content fits without sliding.
*
- * @return true if sliding panels are completely open
+ * @return true if sliding panels are open
*/
public boolean isOpen() {
- return !mCanSlide || mSlideOffset == 1;
+ return !mCanSlide || mSlideOffset > 0;
}
/**
@@ -715,7 +751,7 @@ public class OverlappingPaneLayout extends ViewGroup {
final int lpMargin = lp.topMargin;
final int topBound = getPaddingTop() + lpMargin;
- mSlideOffset = (float) (newTop - topBound) / mSlideRange;
+ updateSlideOffset(newTop - topBound);
dispatchOnPanelSlide(mSlideableView);
}
@@ -855,17 +891,44 @@ public class OverlappingPaneLayout extends ViewGroup {
mIsInNestedScroll = true;
mDragHelper.startNestedScroll(mSlideableView);
}
+ if (DEBUG) {
+ Log.d(TAG, "onStartNestedScroll: " + startNestedScroll);
+ }
return startNestedScroll;
}
@Override
public void onNestedPreScroll(View target, int dx, int dy, int[] consumed) {
+ if (dy == 0) {
+ // Nothing to do
+ return;
+ }
+ if (DEBUG) {
+ Log.d(TAG, "onNestedPreScroll: " + dy);
+ }
+ mInNestedPreScrollDownwards = (dy > 0 && mSlideOffsetPx <= mIntermediateOffset);
mDragHelper.processNestedScroll(mSlideableView, 0, dy, consumed);
}
@Override
+ public void onNestedScroll(View target, int dxConsumed, int dyConsumed, int dxUnconsumed,
+ int dyUnconsumed) {
+ if (DEBUG) {
+ Log.d(TAG, "onNestedScroll: " + dyUnconsumed);
+ }
+ mInNestedPreScrollDownwards = false;
+ // We need to flip dyUnconsumed here, because its magnitude is reversed. b/14585990
+ mDragHelper.processNestedScroll(mSlideableView, 0, -dyUnconsumed, null);
+ }
+
+ @Override
public void onStopNestedScroll(View child) {
- mDragHelper.stopNestedScroll(mSlideableView);
+ if (DEBUG) {
+ Log.d(TAG, "onStopNestedScroll");
+ }
+ if (mIsInNestedScroll) {
+ mDragHelper.stopNestedScroll(mSlideableView);
+ }
mIsInNestedScroll = false;
}
@@ -911,7 +974,25 @@ public class OverlappingPaneLayout extends ViewGroup {
final LayoutParams lp = (LayoutParams) releasedChild.getLayoutParams();
int top = getPaddingTop() + lp.topMargin;
- if (yvel > 0 || (yvel == 0 && mSlideOffset > 0.5f)) {
+
+ if (mInNestedPreScrollDownwards) {
+ // Snap to the closest pinnable position based on the current slide offset
+ // (in pixels) [0 - mIntermediateoffset - mSlideRange]
+ if (yvel > 0) {
+ top += mSlideRange;
+ } else if (0 <= mSlideOffsetPx && mSlideOffsetPx <= mIntermediateOffset / 2) {
+ // Offset is between 0 and mIntermediateOffset, but closer to 0
+ // Leave top unchanged
+ } else if (mIntermediateOffset / 2 <= mSlideOffsetPx
+ && mSlideOffsetPx <= (mIntermediateOffset + mSlideRange) / 2) {
+ // Offset is closest to mIntermediateOffset
+ top += mIntermediateOffset;
+ } else {
+ // Offset is between mIntermediateOffset and mSlideRange, but closer to
+ // mSlideRange
+ top += mSlideRange;
+ }
+ } else if (yvel > 0 || (yvel == 0 && mSlideOffset > 0.5f)) {
top += mSlideRange;
}
@@ -936,7 +1017,8 @@ public class OverlappingPaneLayout extends ViewGroup {
final int newTop;
int topBound = getPaddingTop() + lp.topMargin;
- int bottomBound = topBound + mSlideRange;
+ int bottomBound = topBound
+ + (mInNestedPreScrollDownwards ? mIntermediateOffset : mSlideRange);
newTop = Math.min(Math.max(top, topBound), bottomBound);
return newTop;