Changing LauncherState to a class to allow adding custom functionality

Bug: 67678570
Change-Id: I777e335e9fdf7014b041addff6b8e54fb94167bb

3 files changed, 48 insertions, 35 deletions

diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 4efb911b7..c2d391684 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -1026,7 +1026,7 @@ public class Launcher extends BaseActivity
             return;
         }
 
-        int stateOrdinal = savedState.getInt(RUNTIME_STATE, LauncherState.NORMAL.ordinal());
+        int stateOrdinal = savedState.getInt(RUNTIME_STATE, LauncherState.NORMAL.ordinal);
         LauncherState[] stateValues = LauncherState.values();
         LauncherState state = stateValues[stateOrdinal];
         if (!state.doNotRestore) {
@@ -1495,7 +1495,7 @@ public class Launcher extends BaseActivity
             outState.putInt(RUNTIME_STATE_CURRENT_SCREEN, mWorkspace.getNextPage());
 
         }
-        outState.putInt(RUNTIME_STATE, mWorkspace.getState().ordinal());
+        outState.putInt(RUNTIME_STATE, mWorkspace.getState().ordinal);
 
 
         AbstractFloatingView widgets = AbstractFloatingView
@@ -2336,7 +2336,7 @@ public class Launcher extends BaseActivity
     public boolean onLongClick(View v) {
         if (!isDraggingEnabled()) return false;
         if (isWorkspaceLocked()) return false;
-        if (!isInState(LauncherState.NORMAL)) return false;
+        if (!isInState(LauncherState.NORMAL) && !isInState(LauncherState.OVERVIEW)) return false;
 
         boolean ignoreLongPressToOverview =
                 mDeviceProfile.shouldIgnoreLongPressToOverview(mLastDispatchTouchEventX);
@@ -2531,7 +2531,7 @@ public class Launcher extends BaseActivity
 
     public void enterSpringLoadedDragMode() {
         if (LOGD) Log.d(TAG, String.format("enterSpringLoadedDragMode [mState=%s",
-                mWorkspace.getState().name()));
+                mWorkspace.getState().ordinal));
         if (isInState(LauncherState.SPRING_LOADED)) {
             return;
         }
diff --git a/src/com/android/launcher3/LauncherState.java b/src/com/android/launcher3/LauncherState.java
index c51b92081..4619f4e58 100644
--- a/src/com/android/launcher3/LauncherState.java
+++ b/src/com/android/launcher3/LauncherState.java
@@ -21,34 +21,41 @@ import static android.view.View.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS;
 import static com.android.launcher3.LauncherAnimUtils.ALL_APPS_TRANSITION_MS;
 import static com.android.launcher3.LauncherAnimUtils.OVERVIEW_TRANSITION_MS;
 import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_TRANSITION_MS;
-import static com.android.launcher3.StateFlags.FLAG_DISABLE_ACCESSIBILITY;
-import static com.android.launcher3.StateFlags.FLAG_DO_NOT_RESTORE;
-import static com.android.launcher3.StateFlags.FLAG_HIDE_HOTSEAT;
-import static com.android.launcher3.StateFlags.FLAG_MULTI_PAGE;
-import static com.android.launcher3.StateFlags.FLAG_SHOW_SCRIM;
 
 import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
 
-interface StateFlags {
-    int FLAG_SHOW_SCRIM = 1 << 0;
-    int FLAG_MULTI_PAGE = 1 << 1;
-    int FLAG_HIDE_HOTSEAT = 1 << 2;
-    int FLAG_DISABLE_ACCESSIBILITY = 1 << 3;
-    int FLAG_DO_NOT_RESTORE = 1 << 4;
-}
+import java.util.Arrays;
+
 
 /**
  * Various states for launcher
  */
-public enum LauncherState {
+public class LauncherState {
+
+    protected static final int FLAG_SHOW_SCRIM = 1 << 0;
+    protected static final int FLAG_MULTI_PAGE = 1 << 1;
+    protected static final int FLAG_HIDE_HOTSEAT = 1 << 2;
+    protected static final int FLAG_DISABLE_ACCESSIBILITY = 1 << 3;
+    protected static final int FLAG_DO_NOT_RESTORE = 1 << 4;
+
+    private static final LauncherState[] sAllStates = new LauncherState[4];
+
+    public static LauncherState NORMAL = new LauncherState(0, ContainerType.WORKSPACE,
+            0, FLAG_DO_NOT_RESTORE);
+
+    public static LauncherState ALL_APPS = new LauncherState(1, ContainerType.ALLAPPS,
+            ALL_APPS_TRANSITION_MS, FLAG_DISABLE_ACCESSIBILITY);
 
-    NORMAL          (ContainerType.WORKSPACE, 0, FLAG_DO_NOT_RESTORE),
-    ALL_APPS        (ContainerType.ALLAPPS, ALL_APPS_TRANSITION_MS, FLAG_DISABLE_ACCESSIBILITY),
-    SPRING_LOADED   (ContainerType.WORKSPACE, SPRING_LOADED_TRANSITION_MS,
-            FLAG_SHOW_SCRIM | FLAG_MULTI_PAGE | FLAG_DISABLE_ACCESSIBILITY | FLAG_DO_NOT_RESTORE),
-    OVERVIEW        (ContainerType.OVERVIEW, OVERVIEW_TRANSITION_MS,
+    public static LauncherState SPRING_LOADED = new LauncherState(2, ContainerType.WORKSPACE,
+            SPRING_LOADED_TRANSITION_MS,
+            FLAG_SHOW_SCRIM | FLAG_MULTI_PAGE | FLAG_DISABLE_ACCESSIBILITY | FLAG_DO_NOT_RESTORE);
+
+    public static LauncherState OVERVIEW = new LauncherState(3, ContainerType.OVERVIEW,
+            OVERVIEW_TRANSITION_MS,
             FLAG_SHOW_SCRIM | FLAG_MULTI_PAGE | FLAG_HIDE_HOTSEAT | FLAG_DO_NOT_RESTORE);
 
+    public final int ordinal;
+
     /**
      * Used for containerType in {@link com.android.launcher3.logging.UserEventDispatcher}
      */
@@ -75,7 +82,7 @@ public enum LauncherState {
     public final boolean hideHotseat;
     public final int transitionDuration;
 
-    LauncherState(int containerType, int transitionDuration, int flags) {
+    public LauncherState(int id, int containerType, int transitionDuration, int flags) {
         this.containerType = containerType;
         this.transitionDuration = transitionDuration;
 
@@ -86,5 +93,12 @@ public enum LauncherState {
                 ? IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS
                 : IMPORTANT_FOR_ACCESSIBILITY_AUTO;
         this.doNotRestore = (flags & FLAG_DO_NOT_RESTORE) != 0;
+
+        this.ordinal = id;
+        sAllStates[id] = this;
+    }
+
+    public static LauncherState[] values() {
+        return Arrays.copyOf(sAllStates, sAllStates.length);
     }
 }
diff --git a/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java b/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
index 8e215b033..af56fd77c 100644
--- a/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
+++ b/src/com/android/launcher3/WorkspaceStateTransitionAnimation.java
@@ -18,6 +18,8 @@ package com.android.launcher3;
 
 import static com.android.launcher3.LauncherAnimUtils.DRAWABLE_ALPHA;
 import static com.android.launcher3.LauncherAnimUtils.SCALE_PROPERTY;
+import static com.android.launcher3.LauncherState.OVERVIEW;
+import static com.android.launcher3.LauncherState.SPRING_LOADED;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
@@ -187,18 +189,15 @@ public class WorkspaceStateTransitionAnimation {
         int finalBackgroundAlpha = state.hasScrim ? 255 : 0;
 
         final float finalWorkspaceTranslationY;
-        switch (state) {
-            case OVERVIEW:
-                mNewScale = mOverviewModeShrinkFactor;
-                finalWorkspaceTranslationY = mWorkspace.getOverviewModeTranslationY();
-                break;
-            case SPRING_LOADED:
-                mNewScale = mSpringLoadedShrinkFactor;
-                finalWorkspaceTranslationY = mWorkspace.getSpringLoadedTranslationY();
-                break;
-            default:
-                mNewScale = 1f;
-                finalWorkspaceTranslationY = 0;
+        if (state == OVERVIEW) {
+            mNewScale = mOverviewModeShrinkFactor;
+            finalWorkspaceTranslationY = mWorkspace.getOverviewModeTranslationY();
+        } else if (state == SPRING_LOADED) {
+            mNewScale = mSpringLoadedShrinkFactor;
+            finalWorkspaceTranslationY = mWorkspace.getSpringLoadedTranslationY();
+        } else {
+            mNewScale = 1f;
+            finalWorkspaceTranslationY = 0;
         }
 
         int toPage = mWorkspace.getPageNearestToCenterOfScreen();