Delete unused direct share expansion code

ChooserGridAdapter#canExpandDirectShare was inlined everywhere and
deleted; the code was trivially optimized and all methods that became
unused has been deleted.
A few IDE-suggested trivial changes along the way.

Fix: 277015101
Test: manual testing
Change-Id: I88462fde08842a348a5e4039a641a224476fa13e

3 files changed, 15 insertions, 234 deletions

diff --git a/java/src/com/android/intentresolver/ChooserActivity.java b/java/src/com/android/intentresolver/ChooserActivity.java
index dc9ba5ee..75ee0648 100644
--- a/java/src/com/android/intentresolver/ChooserActivity.java
+++ b/java/src/com/android/intentresolver/ChooserActivity.java
@@ -57,7 +57,6 @@ import android.os.SystemClock;
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.os.storage.StorageManager;
-import android.provider.DeviceConfig;
 import android.service.chooser.ChooserTarget;
 import android.util.Log;
 import android.util.Slog;
@@ -88,7 +87,6 @@ import com.android.intentresolver.contentpreview.HeadlineGeneratorImpl;
 import com.android.intentresolver.flags.FeatureFlagRepository;
 import com.android.intentresolver.flags.FeatureFlagRepositoryFactory;
 import com.android.intentresolver.grid.ChooserGridAdapter;
-import com.android.intentresolver.grid.DirectShareViewHolder;
 import com.android.intentresolver.model.AbstractResolverComparator;
 import com.android.intentresolver.model.AppPredictionServiceResolverComparator;
 import com.android.intentresolver.model.ResolverRankerServiceResolverComparator;
@@ -96,7 +94,6 @@ import com.android.intentresolver.shortcuts.AppPredictorFactory;
 import com.android.intentresolver.shortcuts.ShortcutLoader;
 import com.android.intentresolver.widget.ResolverDrawerLayout;
 import com.android.internal.annotations.VisibleForTesting;
-import com.android.internal.config.sysui.SystemUiDeviceConfigFlags;
 import com.android.internal.content.PackageMonitor;
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 
@@ -141,19 +138,11 @@ public class ChooserActivity extends ResolverActivity implements
 
     private static final String PREF_NUM_SHEET_EXPANSIONS = "pref_num_sheet_expansions";
 
-    private static final String CHIP_LABEL_METADATA_KEY = "android.service.chooser.chip_label";
-    private static final String CHIP_ICON_METADATA_KEY = "android.service.chooser.chip_icon";
-
     private static final boolean DEBUG = true;
 
     public static final String LAUNCH_LOCATION_DIRECT_SHARE = "direct_share";
     private static final String SHORTCUT_TARGET = "shortcut_target";
 
-    private static final String PLURALS_COUNT = "count";
-    private static final String PLURALS_FILE_NAME = "file_name";
-
-    private static final String IMAGE_EDITOR_SHARED_ELEMENT = "screenshot_preview_image";
-
     // TODO: these data structures are for one-time use in shuttling data from where they're
     // populated in `ShortcutToChooserTargetConverter` to where they're consumed in
     // `ShortcutSelectionLogic` which packs the appropriate elements into the final `TargetInfo`.
@@ -180,18 +169,6 @@ public class ChooserActivity extends ResolverActivity implements
     @Retention(RetentionPolicy.SOURCE)
     public @interface ShareTargetType {}
 
-    public static final float DIRECT_SHARE_EXPANSION_RATE = 0.78f;
-
-    private static final int DEFAULT_SALT_EXPIRATION_DAYS = 7;
-    private final int mMaxHashSaltDays = DeviceConfig.getInt(DeviceConfig.NAMESPACE_SYSTEMUI,
-            SystemUiDeviceConfigFlags.HASH_SALT_MAX_DAYS,
-            DEFAULT_SALT_EXPIRATION_DAYS);
-
-    private static final int URI_PERMISSION_INTENT_FLAGS = Intent.FLAG_GRANT_READ_URI_PERMISSION
-            | Intent.FLAG_GRANT_WRITE_URI_PERMISSION
-            | Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION
-            | Intent.FLAG_GRANT_PREFIX_URI_PERMISSION;
-
     private ChooserIntegratedDeviceComponents mIntegratedDeviceComponents;
 
     /* TODO: this is `nullable` because we have to defer the assignment til onCreate(). We make the
@@ -329,11 +306,6 @@ public class ChooserActivity extends ResolverActivity implements
         if (mResolverDrawerLayout != null) {
             mResolverDrawerLayout.addOnLayoutChangeListener(this::handleLayoutChange);
 
-            // expand/shrink direct share 4 -> 8 viewgroup
-            if (mChooserRequest.isSendActionTarget()) {
-                mResolverDrawerLayout.setOnScrollChangeListener(this::handleScroll);
-            }
-
             mResolverDrawerLayout.setOnCollapsedChangedListener(
                     new ResolverDrawerLayout.OnCollapsedChangedListener() {
 
@@ -1240,34 +1212,6 @@ public class ChooserActivity extends ResolverActivity implements
                         mProfileView.setOnClickListener(ChooserActivity.this::onProfileClick);
                         ChooserActivity.this.updateProfileViewButton();
                     }
-
-                    @Override
-                    public int getValidTargetCount() {
-                        return mChooserMultiProfilePagerAdapter
-                                .getActiveListAdapter()
-                                .getSelectableServiceTargetCount();
-                    }
-
-                    @Override
-                    public void updateDirectShareExpansion(DirectShareViewHolder directShareGroup) {
-                        RecyclerView activeAdapterView =
-                                mChooserMultiProfilePagerAdapter.getActiveAdapterView();
-                        if (mResolverDrawerLayout.isCollapsed()) {
-                            directShareGroup.collapse(activeAdapterView);
-                        } else {
-                            directShareGroup.expand(activeAdapterView);
-                        }
-                    }
-
-                    @Override
-                    public void handleScrollToExpandDirectShare(
-                            DirectShareViewHolder directShareGroup, int y, int oldy) {
-                        directShareGroup.handleScroll(
-                                mChooserMultiProfilePagerAdapter.getActiveAdapterView(),
-                                y,
-                                oldy,
-                                mMaxTargetsPerRow);
-                    }
                 },
                 chooserListAdapter,
                 shouldShowContentPreview(),
@@ -1381,12 +1325,6 @@ public class ChooserActivity extends ResolverActivity implements
                 });
     }
 
-    private void handleScroll(View view, int x, int y, int oldx, int oldy) {
-        if (mChooserMultiProfilePagerAdapter.getCurrentRootAdapter() != null) {
-            mChooserMultiProfilePagerAdapter.getCurrentRootAdapter().handleScroll(view, y, oldy);
-        }
-    }
-
     /*
      * Need to dynamically adjust how many icons can fit per row before we add them,
      * which also means setting the correct offset to initially show the content
@@ -1455,9 +1393,7 @@ public class ChooserActivity extends ResolverActivity implements
     private int calculateDrawerOffset(
             int top, int bottom, RecyclerView recyclerView, ChooserGridAdapter gridAdapter) {
 
-        final int bottomInset = mSystemWindowInsets != null
-                ? mSystemWindowInsets.bottom : 0;
-        int offset = bottomInset;
+        int offset = mSystemWindowInsets != null ? mSystemWindowInsets.bottom : 0;
         int rowsToShow = gridAdapter.getSystemRowCount()
                 + gridAdapter.getProfileRowCount()
                 + gridAdapter.getServiceTargetRowCount()
@@ -1487,7 +1423,6 @@ public class ChooserActivity extends ResolverActivity implements
         }
 
         if (recyclerView.getVisibility() == View.VISIBLE) {
-            int directShareHeight = 0;
             rowsToShow = Math.min(4, rowsToShow);
             boolean shouldShowExtraRow = shouldShowExtraRow(rowsToShow);
             mLastNumberOfChildren = recyclerView.getChildCount();
@@ -1503,29 +1438,8 @@ public class ChooserActivity extends ResolverActivity implements
                 if (shouldShowExtraRow) {
                     offset += height;
                 }
-
-                if (gridAdapter.getTargetType(
-                        recyclerView.getChildAdapterPosition(child))
-                        == ChooserListAdapter.TARGET_SERVICE) {
-                    directShareHeight = height;
-                }
                 rowsToShow--;
             }
-
-            boolean isPortrait = getResources().getConfiguration().orientation
-                    == Configuration.ORIENTATION_PORTRAIT;
-            boolean isExpandable = isPortrait && !isInMultiWindowMode()
-                    && gridAdapter.canExpandDirectShare();
-            if (directShareHeight != 0 && shouldShowContentPreview() && isExpandable) {
-                // make sure to leave room for direct share 4->8 expansion, if enabled
-                int requiredExpansionHeight =
-                        (int) (directShareHeight / DIRECT_SHARE_EXPANSION_RATE);
-                int topInset = mSystemWindowInsets != null ? mSystemWindowInsets.top : 0;
-                int minHeight = bottom - top - mResolverDrawerLayout.getAlwaysShowHeight()
-                        - requiredExpansionHeight - topInset - bottomInset;
-
-                offset = Math.min(offset, minHeight);
-            }
         } else {
             ViewGroup currentEmptyStateView = getActiveEmptyStateView();
             if (currentEmptyStateView.getVisibility() == View.VISIBLE) {
@@ -1825,9 +1739,6 @@ public class ChooserActivity extends ResolverActivity implements
 
     @Override
     protected void onProfileTabSelected() {
-        ChooserGridAdapter currentRootAdapter =
-                mChooserMultiProfilePagerAdapter.getCurrentRootAdapter();
-        currentRootAdapter.updateDirectShareExpansion();
         // This fixes an edge case where after performing a variety of gestures, vertical scrolling
         // ends up disabled. That's because at some point the old tab's vertical scrolling is
         // disabled and the new tab's is enabled. For context, see b/159997845
diff --git a/java/src/com/android/intentresolver/grid/ChooserGridAdapter.java b/java/src/com/android/intentresolver/grid/ChooserGridAdapter.java
index 96f8c4d1..e6f70d4f 100644
--- a/java/src/com/android/intentresolver/grid/ChooserGridAdapter.java
+++ b/java/src/com/android/intentresolver/grid/ChooserGridAdapter.java
@@ -89,26 +89,6 @@ public final class ChooserGridAdapter extends RecyclerView.Adapter<RecyclerView.
          * behaviors on this view.
          */
         void updateProfileViewButton(View newButtonFromProfileRow);
-
-        /**
-         * @return the number of "valid" targets in the active list adapter.
-         * TODO: define "valid."
-         */
-        int getValidTargetCount();
-
-        /**
-         * Request that the client update our {@code directShareGroup} to match their desired
-         * state for the "expansion" UI.
-         */
-        void updateDirectShareExpansion(DirectShareViewHolder directShareGroup);
-
-        /**
-         * Request that the client handle a scroll event that should be taken as expanding the
-         * provided {@code directShareGroup}. Note that this currently never happens due to a
-         * hard-coded condition in {@link #canExpandDirectShare()}.
-         */
-        void handleScrollToExpandDirectShare(
-                DirectShareViewHolder directShareGroup, int y, int oldy);
     }
 
     private static final int VIEW_TYPE_DIRECT_SHARE = 0;
@@ -131,7 +111,6 @@ public final class ChooserGridAdapter extends RecyclerView.Adapter<RecyclerView.
     private final int mChooserRowTextOptionTranslatePixelSize;
     private final boolean mShowAzLabelIfPoss;
 
-    private DirectShareViewHolder mDirectShareViewHolder;
     private int mChooserTargetWidth = 0;
 
     private int mFooterHeight = 0;
@@ -190,8 +169,7 @@ public final class ChooserGridAdapter extends RecyclerView.Adapter<RecyclerView.
         }
 
         // Limit width to the maximum width of the chooser activity
-        int maxWidth = mChooserWidthPixels;
-        width = Math.min(maxWidth, width);
+        width = Math.min(mChooserWidthPixels, width);
 
         int newWidth = width / mMaxTargetsPerRow;
         if (newWidth != mChooserTargetWidth) {
@@ -270,15 +248,13 @@ public final class ChooserGridAdapter extends RecyclerView.Adapter<RecyclerView.
 
     @Override
     public int getItemCount() {
-        return (int) (
-                getSystemRowCount()
-                        + getProfileRowCount()
-                        + getServiceTargetRowCount()
-                        + getCallerAndRankedTargetRowCount()
-                        + getAzLabelRowCount()
-                        + mChooserListAdapter.getAlphaTargetCount()
-                        + getFooterRowCount()
-            );
+        return getSystemRowCount()
+                + getProfileRowCount()
+                + getServiceTargetRowCount()
+                + getCallerAndRankedTargetRowCount()
+                + getAzLabelRowCount()
+                + mChooserListAdapter.getAlphaTargetCount()
+                + getFooterRowCount();
     }
 
     @Override
@@ -453,12 +429,11 @@ public final class ChooserGridAdapter extends RecyclerView.Adapter<RecyclerView.
             parentGroup.addView(row1);
             parentGroup.addView(row2);
 
-            mDirectShareViewHolder = new DirectShareViewHolder(parentGroup,
-                    Lists.newArrayList(row1, row2), mMaxTargetsPerRow, viewType,
-                    mChooserActivityDelegate::getValidTargetCount);
-            loadViewsIntoGroup(mDirectShareViewHolder);
+            DirectShareViewHolder directShareViewHolder = new DirectShareViewHolder(parentGroup,
+                    Lists.newArrayList(row1, row2), mMaxTargetsPerRow, viewType);
+            loadViewsIntoGroup(directShareViewHolder);
 
-            return mDirectShareViewHolder;
+            return directShareViewHolder;
         } else {
             ViewGroup row = (ViewGroup) mLayoutInflater.inflate(
                     R.layout.chooser_row, parent, false);
@@ -572,21 +547,6 @@ public final class ChooserGridAdapter extends RecyclerView.Adapter<RecyclerView.
         return callerAndRankedCount + serviceCount + position;
     }
 
-    public void handleScroll(View v, int y, int oldy) {
-        boolean canExpandDirectShare = canExpandDirectShare();
-        if (mDirectShareViewHolder != null && canExpandDirectShare) {
-            mChooserActivityDelegate.handleScrollToExpandDirectShare(
-                    mDirectShareViewHolder, y, oldy);
-        }
-    }
-
-    /** Only expand direct share area if there is a minimum number of targets. */
-    public boolean canExpandDirectShare() {
-        // Do not enable until we have confirmed more apps are using sharing shortcuts
-        // Check git history for enablement logic
-        return false;
-    }
-
     public ChooserListAdapter getListAdapter() {
         return mChooserListAdapter;
     }
@@ -594,11 +554,4 @@ public final class ChooserGridAdapter extends RecyclerView.Adapter<RecyclerView.
     public boolean shouldCellSpan(int position) {
         return getItemViewType(position) == VIEW_TYPE_NORMAL;
     }
-
-    public void updateDirectShareExpansion() {
-        if (mDirectShareViewHolder == null || !canExpandDirectShare()) {
-            return;
-        }
-        mChooserActivityDelegate.updateDirectShareExpansion(mDirectShareViewHolder);
-    }
 }
diff --git a/java/src/com/android/intentresolver/grid/DirectShareViewHolder.java b/java/src/com/android/intentresolver/grid/DirectShareViewHolder.java
index 316c9f07..ad78c719 100644
--- a/java/src/com/android/intentresolver/grid/DirectShareViewHolder.java
+++ b/java/src/com/android/intentresolver/grid/DirectShareViewHolder.java
@@ -25,35 +25,25 @@ import android.view.View.MeasureSpec;
 import android.view.ViewGroup;
 import android.view.animation.AccelerateInterpolator;
 
-import androidx.recyclerview.widget.RecyclerView;
-
-import com.android.intentresolver.ChooserActivity;
-
 import java.util.Arrays;
 import java.util.List;
-import java.util.function.Supplier;
 
 /** Holder for direct share targets in the {@link ChooserGridAdapter}. */
 public class DirectShareViewHolder extends ItemGroupViewHolder {
     private final ViewGroup mParent;
     private final List<ViewGroup> mRows;
-    private int mCellCountPerRow;
+    private final int mCellCountPerRow;
 
-    private boolean mHideDirectShareExpansion = false;
     private int mDirectShareMinHeight = 0;
     private int mDirectShareCurrHeight = 0;
-    private int mDirectShareMaxHeight = 0;
 
     private final boolean[] mCellVisibility;
 
-    private final Supplier<Integer> mDeferredTargetCountSupplier;
-
     public DirectShareViewHolder(
             ViewGroup parent,
             List<ViewGroup> rows,
             int cellCountPerRow,
-            int viewType,
-            Supplier<Integer> deferredTargetCountSupplier) {
+            int viewType) {
         super(rows.size() * cellCountPerRow, parent, viewType);
 
         this.mParent = parent;
@@ -61,7 +51,6 @@ public class DirectShareViewHolder extends ItemGroupViewHolder {
         this.mCellCountPerRow = cellCountPerRow;
         this.mCellVisibility = new boolean[rows.size() * cellCountPerRow];
         Arrays.fill(mCellVisibility, true);
-        this.mDeferredTargetCountSupplier = deferredTargetCountSupplier;
     }
 
     public ViewGroup addView(int index, View v) {
@@ -92,7 +81,6 @@ public class DirectShareViewHolder extends ItemGroupViewHolder {
         mDirectShareMinHeight = getRow(0).getMeasuredHeight();
         mDirectShareCurrHeight = (mDirectShareCurrHeight > 0)
                 ? mDirectShareCurrHeight : mDirectShareMinHeight;
-        mDirectShareMaxHeight = 2 * mDirectShareMinHeight;
     }
 
     public int getMeasuredRowHeight() {
@@ -123,75 +111,4 @@ public class DirectShareViewHolder extends ItemGroupViewHolder {
             fadeAnim.start();
         }
     }
-
-    public void handleScroll(RecyclerView view, int y, int oldy, int maxTargetsPerRow) {
-        // only exit early if fully collapsed, otherwise onListRebuilt() with shifting
-        // targets can lock us into an expanded mode
-        boolean notExpanded = mDirectShareCurrHeight == mDirectShareMinHeight;
-        if (notExpanded) {
-            if (mHideDirectShareExpansion) {
-                return;
-            }
-
-            // only expand if we have more than maxTargetsPerRow, and delay that decision
-            // until they start to scroll
-            final int validTargets = this.mDeferredTargetCountSupplier.get();
-            if (validTargets <= maxTargetsPerRow) {
-                mHideDirectShareExpansion = true;
-                return;
-            }
-        }
-
-        int yDiff = (int) ((oldy - y) * ChooserActivity.DIRECT_SHARE_EXPANSION_RATE);
-
-        int prevHeight = mDirectShareCurrHeight;
-        int newHeight = Math.min(prevHeight + yDiff, mDirectShareMaxHeight);
-        newHeight = Math.max(newHeight, mDirectShareMinHeight);
-        yDiff = newHeight - prevHeight;
-
-        updateDirectShareRowHeight(view, yDiff, newHeight);
-    }
-
-    public void expand(RecyclerView view) {
-        updateDirectShareRowHeight(
-                view, mDirectShareMaxHeight - mDirectShareCurrHeight, mDirectShareMaxHeight);
-    }
-
-    public void collapse(RecyclerView view) {
-        updateDirectShareRowHeight(
-                view, mDirectShareMinHeight - mDirectShareCurrHeight, mDirectShareMinHeight);
-    }
-
-    private void updateDirectShareRowHeight(RecyclerView view, int yDiff, int newHeight) {
-        if (view == null || view.getChildCount() == 0 || yDiff == 0) {
-            return;
-        }
-
-        // locate the item to expand, and offset the rows below that one
-        boolean foundExpansion = false;
-        for (int i = 0; i < view.getChildCount(); i++) {
-            View child = view.getChildAt(i);
-
-            if (foundExpansion) {
-                child.offsetTopAndBottom(yDiff);
-            } else {
-                if (child.getTag() != null && child.getTag() instanceof DirectShareViewHolder) {
-                    int widthSpec = MeasureSpec.makeMeasureSpec(child.getWidth(),
-                            MeasureSpec.EXACTLY);
-                    int heightSpec = MeasureSpec.makeMeasureSpec(newHeight,
-                            MeasureSpec.EXACTLY);
-                    child.measure(widthSpec, heightSpec);
-                    child.getLayoutParams().height = child.getMeasuredHeight();
-                    child.layout(child.getLeft(), child.getTop(), child.getRight(),
-                            child.getTop() + child.getMeasuredHeight());
-
-                    foundExpansion = true;
-                }
-            }
-        }
-
-        if (foundExpansion) {
-            mDirectShareCurrHeight = newHeight;
-        }
-    }
 }