Set camera icon as gray when app is unlaunchable

This CL is a follow-up to ag/26825455. Now that we are changing app pairs' disabled appearance back to icon-only, the case where a camera icon should be grayed out on an app pair on a small screen needs to be reinstated.

Fixes: 333137187
Flag: ACONFIG com.android.wm.shell.enable_app_pairs TRUNKFOOD
Test: Manual
Change-Id: I64ae3db28293fa0adc249d700e9e03c074b6854f
(cherry picked from commit a5e838d61c)
Merged-In: I64ae3db28293fa0adc249d700e9e03c074b6854f

src/com/android/launcher3/apppairs/AppPairIcon.java

@@ -143,7 +143,7 @@ public class AppPairIcon extends FrameLayout implements DraggableView, Reorderab
         CharSequence app2 = getInfo().getSecondApp().title;
         String a11yTitle = getContext().getString(R.string.app_pair_name_format, app1, app2);
         setContentDescription(
-                getInfo().shouldDrawAsDisabled(getContext())
+                getInfo().shouldReportDisabled(getContext())
                         ? getContext().getString(R.string.disabled_app_label, a11yTitle)
                         : a11yTitle);
     }

src/com/android/launcher3/apppairs/AppPairIconGraphic.kt

@@ -55,6 +55,12 @@ constructor(context: Context, attrs: AttributeSet? = null) :
             appIcon1.setBounds(0, 0, p.memberIconSize.toInt(), p.memberIconSize.toInt())
             appIcon2.setBounds(0, 0, p.memberIconSize.toInt(), p.memberIconSize.toInt())
 
+            // If icons are unlaunchable due to screen size, manually override disabled appearance.
+            // (otherwise, leave disabled state alone; icons will naturally inherit the app's state)
+            val (isApp1Launchable, isApp2Launchable) = appPairInfo.isLaunchable(p.context)
+            if (!isApp1Launchable) appIcon1.setIsDisabled(true)
+            if (!isApp2Launchable) appIcon2.setIsDisabled(true)
+
             // Create icon drawable.
             val fullIconDrawable = AppPairIconDrawable(p, appIcon1, appIcon2)
             fullIconDrawable.setBounds(0, 0, p.iconSize, p.iconSize)

src/com/android/launcher3/model/data/AppPairInfo.kt

@@ -68,12 +68,15 @@ class AppPairInfo() : CollectionInfo() {
     /** Returns if either of the app pair members is currently disabled. */
     override fun isDisabled() = anyMatch { it.isDisabled }
 
-    /** Checks if the app pair is launchable at the current screen size. */
-    fun isLaunchable(context: Context) =
-        (ActivityContext.lookupContext(context) as ActivityContext).getDeviceProfile().isTablet ||
-            getAppContents().stream().noneMatch {
-                it.hasStatusFlag(WorkspaceItemInfo.FLAG_NON_RESIZEABLE)
-            }
+    /** Checks if member apps are launchable at the current screen size. */
+    fun isLaunchable(context: Context): Pair<Boolean, Boolean> {
+        val isTablet =
+            (ActivityContext.lookupContext(context) as ActivityContext).getDeviceProfile().isTablet
+        return Pair(
+            isTablet || !getFirstApp().hasStatusFlag(WorkspaceItemInfo.FLAG_NON_RESIZEABLE),
+            isTablet || !getSecondApp().hasStatusFlag(WorkspaceItemInfo.FLAG_NON_RESIZEABLE)
+        )
+    }
 
     /** Fetches high-res icons for member apps if needed. */
     fun fetchHiResIconsIfNeeded(iconCache: IconCache) {
@@ -83,13 +86,14 @@ class AppPairInfo() : CollectionInfo() {
     }
 
     /**
-     * App pairs will draw as "disabled" if either of the following is true:
+     * App pairs will report itself as "disabled" (for accessibility) if either of the following is
+     * true:
      * 1) One of the member WorkspaceItemInfos is disabled (i.e. the app software itself is paused
      *    or can't be launched for some other reason).
      * 2) One of the member apps can't be launched due to screen size requirements.
      */
-    fun shouldDrawAsDisabled(context: Context): Boolean {
-        return isDisabled || !isLaunchable(context)
+    fun shouldReportDisabled(context: Context): Boolean {
+        return isDisabled || !isLaunchable(context).first || !isLaunchable(context).second
     }
 
     /** Generates a default title for the app pair and sets it. */

src/com/android/launcher3/touch/ItemClickHandler.java

@@ -149,9 +149,12 @@ public class ItemClickHandler {
      */
     private static void onClickAppPairIcon(View v) {
         Launcher launcher = Launcher.getLauncher(v.getContext());
-        AppPairIcon appPairIcon = (AppPairIcon) v;
-        if (!appPairIcon.getInfo().isLaunchable(launcher)) {
-            // Display a message for app pairs that are disabled due to screen size
+        AppPairIcon icon = (AppPairIcon) v;
+        AppPairInfo info = icon.getInfo();
+        boolean isApp1Launchable = info.isLaunchable(launcher).getFirst(),
+                isApp2Launchable = info.isLaunchable(launcher).getSecond();
+        if (!isApp1Launchable || !isApp2Launchable) {
+            // App pair is unlaunchable due to screen size.
             boolean isFoldable = InvariantDeviceProfile.INSTANCE.get(launcher)
                     .supportedProfiles.stream().anyMatch(dp -> dp.isTwoPanels);
             Toast.makeText(launcher, isFoldable
@@ -159,26 +162,27 @@ public class ItemClickHandler {
                             : R.string.app_pair_unlaunchable_at_screen_size,
                     Toast.LENGTH_SHORT).show();
             return;
-        } else if (appPairIcon.getInfo().isDisabled()) {
-            WorkspaceItemInfo app1 = appPairIcon.getInfo().getFirstApp();
-            WorkspaceItemInfo app2 = appPairIcon.getInfo().getSecondApp();
+        } else if (info.isDisabled()) {
+            // App pair is disabled for another reason.
+            WorkspaceItemInfo app1 = info.getFirstApp();
+            WorkspaceItemInfo app2 = info.getSecondApp();
             // Show the user why the app pair is disabled.
             if (app1.isDisabled() && app2.isDisabled()) {
-                // Both apps are disabled, show "app pair is not available" toast.
+                // Both apps are disabled, show generic "app pair is not available" toast.
                 Toast.makeText(launcher, R.string.app_pair_not_available, Toast.LENGTH_SHORT)
                         .show();
                 return;
             } else if ((app1.isDisabled() && handleDisabledItemClicked(app1, launcher))
                     || (app2.isDisabled() && handleDisabledItemClicked(app2, launcher))) {
-                // Only one is disabled, and handleDisabledItemClicked() will show a toast, so we
-                // are done.
+                // Only one is disabled, and handleDisabledItemClicked() showed a specific toast
+                // explaining why, so we are done.
                 return;
             }
         }
 
         // Either the app pair is not disabled, or it is a disabled state that can be handled by
         // framework directly (e.g. one app is paused), so go ahead and launch.
-        launcher.launchAppPair(appPairIcon);
+        launcher.launchAppPair(icon);
     }
 
     /**