Fix call chip rendering and placement stability

app/src/main/java/se/ajpanton/statusbartweak/runtime/RuntimeMutationGuard.java

@@ -0,0 +1,27 @@
+package se.ajpanton.statusbartweak.runtime;
+
+public final class RuntimeMutationGuard {
+    private static final ThreadLocal<Integer> SNAPSHOT_RENDER_DEPTH =
+            ThreadLocal.withInitial(() -> 0);
+
+    private RuntimeMutationGuard() {
+    }
+
+    public static void enterSnapshotRenderMutation() {
+        SNAPSHOT_RENDER_DEPTH.set(SNAPSHOT_RENDER_DEPTH.get() + 1);
+    }
+
+    public static void exitSnapshotRenderMutation() {
+        int depth = SNAPSHOT_RENDER_DEPTH.get() - 1;
+        if (depth <= 0) {
+            SNAPSHOT_RENDER_DEPTH.remove();
+        } else {
+            SNAPSHOT_RENDER_DEPTH.set(depth);
+        }
+    }
+
+    public static boolean isSnapshotRenderMutation() {
+        Integer depth = SNAPSHOT_RENDER_DEPTH.get();
+        return depth != null && depth > 0;
+    }
+}

app/src/main/java/se/ajpanton/statusbartweak/runtime/layout/StockLayoutCanvasController.java

@@ -34,6 +34,7 @@ import java.util.WeakHashMap;
 import java.util.function.Function;
 
 import se.ajpanton.statusbartweak.runtime.NotificationKeyReflection;
+import se.ajpanton.statusbartweak.runtime.RuntimeMutationGuard;
 import se.ajpanton.statusbartweak.runtime.ViewIdNames;
 import se.ajpanton.statusbartweak.runtime.features.RuntimeContext;
 import se.ajpanton.statusbartweak.runtime.hooks.ReflectionSupport;
@@ -1491,6 +1492,9 @@ final class StockLayoutCanvasController {
     }
 
     private void markStatusChipLifecycleDirtyIfNeeded(View view, View fallbackRoot) {
+        if (RuntimeMutationGuard.isSnapshotRenderMutation()) {
+            return;
+        }
         if (view == null || !isStatusChipCandidate(view)) {
             View root = view != null ? unlockedStatusBarRootFor(view) : fallbackRoot;
             if (deferDrawerStatusChipRefresh(root)) {
@@ -2989,6 +2993,7 @@ final class StockLayoutCanvasController {
     private boolean isTrackedStatusChipWriteTarget(View view) {
         if (view == null
                 || ownHiddenViewAlphaWriteDepth > 0
+                || RuntimeMutationGuard.isSnapshotRenderMutation()
                 || !trackedStatusChipSources.contains(view)
                 || !hiddenViewStates.containsKey(view)
                 || !view.isAttachedToWindow()
@@ -3008,6 +3013,7 @@ final class StockLayoutCanvasController {
     private boolean isStatusChipShellWriteTarget(View view) {
         if (view == null
                 || ownHiddenViewAlphaWriteDepth > 0
+                || RuntimeMutationGuard.isSnapshotRenderMutation()
                 || !view.isAttachedToWindow()
                 || !isLayoutEnabled(view.getContext())
                 || !isStatusChipShell(view)) {

app/src/main/java/se/ajpanton/statusbartweak/runtime/render/SnapshotRenderer.java

@@ -35,6 +35,7 @@ import java.util.Objects;
 import java.util.WeakHashMap;
 
 import se.ajpanton.statusbartweak.runtime.NotificationKeyReflection;
+import se.ajpanton.statusbartweak.runtime.RuntimeMutationGuard;
 import se.ajpanton.statusbartweak.runtime.ViewIdNames;
 import se.ajpanton.statusbartweak.runtime.hooks.ReflectionSupport;
 import se.ajpanton.statusbartweak.runtime.layoutsolver.StatusBarLayoutSolver.Bounds;
@@ -748,16 +749,26 @@ final class SnapshotRenderer {
                             bitmap.getHeight())) {
                 return;
             }
-            sourceView.setVisibility(View.VISIBLE);
-            sourceView.setAlpha(1f);
-            if (source.mode() == SnapshotMode.STATUS_CHIP) {
-                drawTemporarilySizedView(sourceView, canvas, bitmap.getWidth(), bitmap.getHeight());
-            } else {
-                sourceView.draw(canvas);
+            RuntimeMutationGuard.enterSnapshotRenderMutation();
+            try {
+                sourceView.setVisibility(View.VISIBLE);
+                sourceView.setAlpha(1f);
+                if (source.mode() == SnapshotMode.STATUS_CHIP) {
+                    drawTemporarilySizedView(sourceView, canvas, bitmap.getWidth(), bitmap.getHeight());
+                } else {
+                    sourceView.draw(canvas);
+                }
+            } finally {
+                RuntimeMutationGuard.exitSnapshotRenderMutation();
             }
         } finally {
-            sourceView.setAlpha(oldAlpha);
-            sourceView.setVisibility(oldVisibility);
+            RuntimeMutationGuard.enterSnapshotRenderMutation();
+            try {
+                sourceView.setAlpha(oldAlpha);
+                sourceView.setVisibility(oldVisibility);
+            } finally {
+                RuntimeMutationGuard.exitSnapshotRenderMutation();
+            }
         }
     }
 
@@ -1183,7 +1194,9 @@ final class SnapshotRenderer {
                 view.getRight(),
                 view.getBottom(),
                 view.getMeasuredWidth(),
-                view.getMeasuredHeight()));
+                view.getMeasuredHeight(),
+                view.getVisibility(),
+                view.getAlpha()));
         if (view instanceof ViewGroup group) {
             for (int i = 0; i < group.getChildCount(); i++) {
                 captureFrameState(group.getChildAt(i), state);
@@ -1207,6 +1220,12 @@ final class SnapshotRenderer {
                         View.MeasureSpec.makeMeasureSpec(frame.measuredHeight, View.MeasureSpec.EXACTLY));
             }
             view.layout(frame.left, frame.top, frame.right, frame.bottom);
+            if (view.getAlpha() != frame.alpha) {
+                view.setAlpha(frame.alpha);
+            }
+            if (view.getVisibility() != frame.visibility) {
+                view.setVisibility(frame.visibility);
+            }
         }
     }
 
@@ -1221,7 +1240,9 @@ final class SnapshotRenderer {
             int right,
             int bottom,
             int measuredWidth,
-            int measuredHeight
+            int measuredHeight,
+            int visibility,
+            float alpha
     ) {
     }
 

app/src/main/java/se/ajpanton/statusbartweak/runtime/render/UnlockedChipPlacementController.java

@@ -21,6 +21,10 @@ final class UnlockedChipPlacementController {
     }
 
     void clear() {
+        resetMissingChipFallback();
+    }
+
+    private void resetMissingChipFallback() {
         heldPlacements = null;
         lastCollisionBounds = null;
         lastRootWidth = 0;
@@ -47,10 +51,11 @@ final class UnlockedChipPlacementController {
             return rawPlacements;
         }
 
-        ArrayList<SnapshotPlacement> placements = isAnyChipHidingEnabled(settings)
+        boolean hasMetricSources = metricSources != null && !metricSources.isEmpty();
+        ArrayList<SnapshotPlacement> placements = isAnyChipHidingEnabled(settings) || !hasMetricSources
                 ? new ArrayList<>()
                 : heldPlacements(root);
-        if (placements.isEmpty()) {
+        if (placements.isEmpty() && hasMetricSources) {
             placements = emptyPlacement(root, metricSources);
         }
         return placements;

app/src/main/java/se/ajpanton/statusbartweak/runtime/render/UnlockedLayoutPlanner.java

@@ -88,7 +88,13 @@ final class UnlockedLayoutPlanner {
         Bounds aodStatusbarBounds = scene != null && scene.isAod()
                 ? aodStatusbarBounds(root, settings, aodNotificationBounds, aodStatusAnchorBounds)
                 : null;
-        LayoutEdges edges = layoutEdges(root, settings, anchors, scene, aodStatusAnchorBounds);
+        LayoutEdges edges = layoutEdges(
+                root,
+                settings,
+                anchors,
+                collectedIcons,
+                scene,
+                aodStatusAnchorBounds);
         int statusbarHeight = statusbarHeight(root, anchors, scene, aodStatusContentBounds);
         if (clockEnabledForScene(settings, scene) && clockLayout != null && clockLayout.width() > 0) {
             bands.add(UnlockedLayoutBand.clock(
@@ -1393,6 +1399,7 @@ final class UnlockedLayoutPlanner {
             View root,
             SbtSettings settings,
             RootAnchors anchors,
+            CollectedIcons collectedIcons,
             SceneKey scene,
             Bounds aodStatusAnchorBounds
     ) {
@@ -1419,11 +1426,29 @@ final class UnlockedLayoutPlanner {
         if (settings.layoutPaddingRightAddStock) {
             right -= stockInsets.right;
         }
+        if (scene != null && scene.isUnlocked() && hasStatusChipSources(collectedIcons)) {
+            LayoutEdges recentEdges = recentNonAodEdgesByRootWidth.get(rootWidth);
+            if (isReusableUnlockedEdge(left, recentEdges)) {
+                left = recentEdges.left();
+            }
+        }
         LayoutEdges edges = new LayoutEdges(left, right);
         rememberNonAodEdges(rootWidth, scene, edges);
         return edges;
     }
 
+    private boolean hasStatusChipSources(CollectedIcons icons) {
+        return icons != null
+                && ((icons.statusChips != null && !icons.statusChips.isEmpty())
+                || (icons.statusChipMetrics != null && !icons.statusChipMetrics.isEmpty()));
+    }
+
+    private boolean isReusableUnlockedEdge(int currentLeft, LayoutEdges recentEdges) {
+        return recentEdges != null
+                && recentEdges.right() > recentEdges.left()
+                && Math.abs(currentLeft - recentEdges.left()) <= 8;
+    }
+
     private LayoutEdges stableAodEdges(int rootWidth, LayoutEdges aodEdges) {
         if (rootWidth <= 0) {
             return aodEdges;