Use DeviceProfile numFolderRows and numFolderColumns

Invariant hold values that are not related to current DP in use. This is a change needed for IDP to hold more values in the future akin to iconSize.

Bug: 309800141
Change-Id: Iefb388a5f6590d7da3452d2c388c02bd5e9d32bb
Flag: N/A
Test: NexusLauncherTests
diff --git a/src/com/android/launcher3/DeviceProfile.java b/src/com/android/launcher3/DeviceProfile.java
index 28c7a37..3b07791 100644
--- a/src/com/android/launcher3/DeviceProfile.java
+++ b/src/com/android/launcher3/DeviceProfile.java
@@ -176,6 +176,8 @@
     public int cellYPaddingPx = -1;
 
     // Folder
+    public final int numFolderRows;
+    public final int numFolderColumns;
     public float folderLabelTextScale;
     public int folderLabelTextSizePx;
     public int folderFooterHeightPx;
@@ -431,6 +433,8 @@
         }
 
         folderLabelTextScale = res.getFloat(R.dimen.folder_label_text_scale);
+        numFolderRows = inv.numFolderRows;
+        numFolderColumns = inv.numFolderColumns;
 
         if (mIsScalableGrid && inv.folderStyle != INVALID_RESOURCE_HANDLE) {
             TypedArray folderStyle = context.obtainStyledAttributes(inv.folderStyle,
@@ -622,11 +626,11 @@
                             isTwoPanels ? inv.folderSpecsTwoPanelId : inv.folderSpecsId),
                     ResponsiveSpecType.Folder);
             mResponsiveFolderWidthSpec = folderSpecs.getCalculatedSpec(responsiveAspectRatio,
-                    DimensionType.WIDTH, inv.numFolderColumns,
+                    DimensionType.WIDTH, numFolderColumns,
                     mResponsiveWorkspaceWidthSpec.getAvailableSpace(),
                     mResponsiveWorkspaceWidthSpec);
             mResponsiveFolderHeightSpec = folderSpecs.getCalculatedSpec(responsiveAspectRatio,
-                    DimensionType.HEIGHT, inv.numFolderRows,
+                    DimensionType.HEIGHT, numFolderRows,
                     mResponsiveWorkspaceHeightSpec.getAvailableSpace(),
                     mResponsiveWorkspaceHeightSpec);
         }
@@ -1365,16 +1369,16 @@
         Point totalWorkspacePadding = getTotalWorkspacePadding();
 
         // Check if the folder fit within the available height.
-        float contentUsedHeight = folderCellHeightPx * inv.numFolderRows
-                + ((inv.numFolderRows - 1) * folderCellLayoutBorderSpacePx.y)
+        float contentUsedHeight = folderCellHeightPx * numFolderRows
+                + ((numFolderRows - 1) * folderCellLayoutBorderSpacePx.y)
                 + folderFooterHeightPx
                 + folderContentPaddingTop;
         int contentMaxHeight = availableHeightPx - totalWorkspacePadding.y;
         float scaleY = contentMaxHeight / contentUsedHeight;
 
         // Check if the folder fit within the available width.
-        float contentUsedWidth = folderCellWidthPx * inv.numFolderColumns
-                + ((inv.numFolderColumns - 1) * folderCellLayoutBorderSpacePx.x)
+        float contentUsedWidth = folderCellWidthPx * numFolderColumns
+                + ((numFolderColumns - 1) * folderCellLayoutBorderSpacePx.x)
                 + folderContentPaddingLeftRight * 2;
         int contentMaxWidth = availableWidthPx - totalWorkspacePadding.x;
         float scaleX = contentMaxWidth / contentUsedWidth;
@@ -1991,8 +1995,8 @@
         writer.println(prefix + pxToDpStr("iconTextSizePx", iconTextSizePx));
         writer.println(prefix + pxToDpStr("iconDrawablePaddingPx", iconDrawablePaddingPx));
 
-        writer.println(prefix + "\tinv.numFolderRows: " + inv.numFolderRows);
-        writer.println(prefix + "\tinv.numFolderColumns: " + inv.numFolderColumns);
+        writer.println(prefix + "\tnumFolderRows: " + numFolderRows);
+        writer.println(prefix + "\tnumFolderColumns: " + numFolderColumns);
         writer.println(prefix + pxToDpStr("folderCellWidthPx", folderCellWidthPx));
         writer.println(prefix + pxToDpStr("folderCellHeightPx", folderCellHeightPx));
         writer.println(prefix + pxToDpStr("folderChildIconSizePx", folderChildIconSizePx));
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index a351947..0eebdc6 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -792,7 +792,7 @@
         if (info.container >= 0) {
             View folderIcon = getWorkspace().getHomescreenIconByItemId(info.container);
             if (folderIcon instanceof FolderIcon && folderIcon.getTag() instanceof FolderInfo) {
-                if (new FolderGridOrganizer(getDeviceProfile().inv)
+                if (new FolderGridOrganizer(getDeviceProfile())
                         .setFolderInfo((FolderInfo) folderIcon.getTag())
                         .isItemInPreview(info.rank)) {
                     folderIcon.invalidate();
@@ -2646,7 +2646,7 @@
 
         // Cache one page worth of icons
         getViewCache().setCacheSize(R.layout.folder_application,
-                mDeviceProfile.inv.numFolderColumns * mDeviceProfile.inv.numFolderRows);
+                mDeviceProfile.numFolderColumns * mDeviceProfile.numFolderRows);
         getViewCache().setCacheSize(R.layout.folder_page, 2);
 
         TraceHelper.INSTANCE.endSection();
diff --git a/src/com/android/launcher3/folder/Folder.java b/src/com/android/launcher3/folder/Folder.java
index 8bf7ec2..e7a559e 100644
--- a/src/com/android/launcher3/folder/Folder.java
+++ b/src/com/android/launcher3/folder/Folder.java
@@ -1082,7 +1082,7 @@
 
     private void updateItemLocationsInDatabaseBatch(boolean isBind) {
         FolderGridOrganizer verifier = new FolderGridOrganizer(
-                mActivityContext.getDeviceProfile().inv).setFolderInfo(mInfo);
+                mActivityContext.getDeviceProfile()).setFolderInfo(mInfo);
 
         ArrayList<ItemInfo> items = new ArrayList<>();
         int total = mInfo.contents.size();
@@ -1381,7 +1381,7 @@
     @Override
     public void onAdd(WorkspaceItemInfo item, int rank) {
         FolderGridOrganizer verifier = new FolderGridOrganizer(
-                mActivityContext.getDeviceProfile().inv).setFolderInfo(mInfo);
+                mActivityContext.getDeviceProfile()).setFolderInfo(mInfo);
         verifier.updateRankAndPos(item, rank);
         mLauncherDelegate.getModelWriter().addOrMoveItemInDatabase(item, mInfo.id, 0, item.cellX,
                 item.cellY);
diff --git a/src/com/android/launcher3/folder/FolderAnimationManager.java b/src/com/android/launcher3/folder/FolderAnimationManager.java
index 9e2e2bf..a91373b 100644
--- a/src/com/android/launcher3/folder/FolderAnimationManager.java
+++ b/src/com/android/launcher3/folder/FolderAnimationManager.java
@@ -96,7 +96,7 @@
 
         mContext = folder.getContext();
         mDeviceProfile = folder.mActivityContext.getDeviceProfile();
-        mPreviewVerifier = new FolderGridOrganizer(mDeviceProfile.inv);
+        mPreviewVerifier = new FolderGridOrganizer(mDeviceProfile);
 
         mIsOpening = isOpening;
 
diff --git a/src/com/android/launcher3/folder/FolderGridOrganizer.java b/src/com/android/launcher3/folder/FolderGridOrganizer.java
index 4be82ed..0436011 100644
--- a/src/com/android/launcher3/folder/FolderGridOrganizer.java
+++ b/src/com/android/launcher3/folder/FolderGridOrganizer.java
@@ -20,7 +20,7 @@
 
 import android.graphics.Point;
 
-import com.android.launcher3.InvariantDeviceProfile;
+import com.android.launcher3.DeviceProfile;
 import com.android.launcher3.model.data.FolderInfo;
 import com.android.launcher3.model.data.ItemInfo;
 
@@ -41,16 +41,33 @@
     private int mCountX;
     private int mCountY;
     private boolean mDisplayingUpperLeftQuadrant = false;
+    private static final int PREVIEW_MAX_ROWS = 2;
+    private static final int PREVIEW_MAX_COLUMNS = 2;
 
     /**
      * Note: must call {@link #setFolderInfo(FolderInfo)} manually for verifier to work.
      */
-    public FolderGridOrganizer(InvariantDeviceProfile profile) {
+    public FolderGridOrganizer(DeviceProfile profile) {
         mMaxCountX = profile.numFolderColumns;
         mMaxCountY = profile.numFolderRows;
         mMaxItemsPerPage = mMaxCountX * mMaxCountY;
     }
 
+    private FolderGridOrganizer(int maxCountX, int maxCountY) {
+        mMaxCountX = maxCountX;
+        mMaxCountY = maxCountY;
+        mMaxItemsPerPage = mMaxCountX * mMaxCountY;
+    }
+
+    /**
+     * Returns a FolderGridOrganizer that should only be used to verify if the folder icon is
+     * showing in the preview. Max number of rows is {@link #PREVIEW_MAX_ROWS} and columns is
+     * {@link #PREVIEW_MAX_COLUMNS}.
+     */
+    public static FolderGridOrganizer getPreviewIconVerifier() {
+        return new FolderGridOrganizer(PREVIEW_MAX_ROWS, PREVIEW_MAX_COLUMNS);
+    }
+
     /**
      * Updates the organizer with the provided folder info
      */
@@ -127,6 +144,7 @@
 
     /**
      * Updates the item's cellX, cellY and rank corresponding to the provided rank.
+     *
      * @return true if there was any change
      */
     public boolean updateRankAndPos(ItemInfo item, int rank) {
@@ -189,7 +207,7 @@
         if (page > 0 || mDisplayingUpperLeftQuadrant) {
             int col = rank % mCountX;
             int row = rank / mCountX;
-            return col < 2 && row < 2;
+            return col < PREVIEW_MAX_COLUMNS && row < PREVIEW_MAX_ROWS;
         }
         return rank < MAX_NUM_ITEMS_IN_PREVIEW;
     }
diff --git a/src/com/android/launcher3/folder/FolderIcon.java b/src/com/android/launcher3/folder/FolderIcon.java
index cb1dc4f..c80fb8c 100644
--- a/src/com/android/launcher3/folder/FolderIcon.java
+++ b/src/com/android/launcher3/folder/FolderIcon.java
@@ -221,7 +221,7 @@
 
         icon.setAccessibilityDelegate(activity.getAccessibilityDelegate());
 
-        icon.mPreviewVerifier = new FolderGridOrganizer(activity.getDeviceProfile().inv);
+        icon.mPreviewVerifier = new FolderGridOrganizer(activity.getDeviceProfile());
         icon.mPreviewVerifier.setFolderInfo(folderInfo);
         icon.updatePreviewItems(false);
 
diff --git a/src/com/android/launcher3/folder/FolderPagedView.java b/src/com/android/launcher3/folder/FolderPagedView.java
index 36e5e1b..f2bed92 100644
--- a/src/com/android/launcher3/folder/FolderPagedView.java
+++ b/src/com/android/launcher3/folder/FolderPagedView.java
@@ -37,8 +37,6 @@
 import com.android.launcher3.BubbleTextView;
 import com.android.launcher3.CellLayout;
 import com.android.launcher3.DeviceProfile;
-import com.android.launcher3.InvariantDeviceProfile;
-import com.android.launcher3.LauncherAppState;
 import com.android.launcher3.PagedView;
 import com.android.launcher3.R;
 import com.android.launcher3.ShortcutAndWidgetContainer;
@@ -101,14 +99,15 @@
 
     public FolderPagedView(Context context, AttributeSet attrs) {
         super(context, attrs);
-        InvariantDeviceProfile profile = LauncherAppState.getIDP(context);
+        ActivityContext activityContext = ActivityContext.lookupContext(context);
+        DeviceProfile profile = activityContext.getDeviceProfile();
         mOrganizer = new FolderGridOrganizer(profile);
 
         mIsRtl = Utilities.isRtl(getResources());
         setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES);
 
         mFocusIndicatorHelper = new ViewGroupFocusHelper(this);
-        mViewCache = ActivityContext.lookupContext(context).getViewCache();
+        mViewCache = activityContext.getViewCache();
     }
 
     public void setFolder(Folder folder) {
diff --git a/src/com/android/launcher3/model/LoaderTask.java b/src/com/android/launcher3/model/LoaderTask.java
index f4ce360..d9f43ef 100644
--- a/src/com/android/launcher3/model/LoaderTask.java
+++ b/src/com/android/launcher3/model/LoaderTask.java
@@ -481,8 +481,7 @@
             mItemsDeleted = c.commitDeleted();
 
             // Sort the folder items, update ranks, and make sure all preview items are high res.
-            FolderGridOrganizer verifier =
-                    new FolderGridOrganizer(mApp.getInvariantDeviceProfile());
+            FolderGridOrganizer verifier = FolderGridOrganizer.getPreviewIconVerifier();
             for (FolderInfo folder : mBgDataModel.folders) {
                 Collections.sort(folder.contents, Folder.ITEM_POS_COMPARATOR);
                 verifier.setFolderInfo(folder);