Bug 1417049 - [1.2] Don't show Add to Home Screen page action for incompatible launchers. r=nechen

mobile/android/base/java/org/mozilla/gecko/BrowserApp.java

@@ -163,6 +163,7 @@ import org.mozilla.gecko.util.HardwareUtils;
 import org.mozilla.gecko.util.IntentUtils;
 import org.mozilla.gecko.util.MenuUtils;
 import org.mozilla.gecko.util.PrefUtils;
+import org.mozilla.gecko.util.ShortcutUtils;
 import org.mozilla.gecko.util.StringUtils;
 import org.mozilla.gecko.util.ThreadUtils;
 import org.mozilla.gecko.util.WindowUtil;
@@ -3649,7 +3650,8 @@ public class BrowserApp extends GeckoApp
         MenuUtils.safeSetEnabled(aMenu, R.id.page, !isAboutHome(tab));
         MenuUtils.safeSetEnabled(aMenu, R.id.subscribe, tab.hasFeeds());
         MenuUtils.safeSetEnabled(aMenu, R.id.add_search_engine, tab.hasOpenSearch());
-        MenuUtils.safeSetEnabled(aMenu, R.id.add_to_launcher, !isAboutHome(tab));
+        MenuUtils.safeSetEnabled(aMenu, R.id.add_to_launcher,
+            !isAboutHome(tab) && ShortcutUtils.isPinShortcutSupported());
         MenuUtils.safeSetEnabled(aMenu, R.id.set_as_homepage, !isAboutHome(tab));
         onPrepareOptionsMenuPinToTopSites(aMenu, tab);
 

mobile/android/base/java/org/mozilla/gecko/Tab.java

@@ -25,6 +25,7 @@ import org.mozilla.gecko.reader.ReadingListHelper;
 import org.mozilla.gecko.toolbar.BrowserToolbar.TabEditingState;
 import org.mozilla.gecko.toolbar.PageActionLayout;
 import org.mozilla.gecko.util.GeckoBundle;
+import org.mozilla.gecko.util.ShortcutUtils;
 import org.mozilla.gecko.util.ThreadUtils;
 import org.mozilla.gecko.webapps.WebAppManifest;
 import org.mozilla.gecko.widget.SiteLogins;
@@ -480,6 +481,10 @@ public class Tab {
     }
 
     public void updatePageAction() {
+        if (!ShortcutUtils.isPinShortcutSupported()) {
+            return;
+        }
+
         if (mManifestUrl != null) {
             showPwaPageAction();
 

mobile/android/base/java/org/mozilla/gecko/delegates/BookmarkStateChangeDelegate.java

@@ -31,6 +31,7 @@ import org.mozilla.gecko.prompts.Prompt;
 import org.mozilla.gecko.prompts.PromptListItem;
 import org.mozilla.gecko.util.DrawableUtil;
 import org.mozilla.gecko.util.GeckoBundle;
+import org.mozilla.gecko.util.ShortcutUtils;
 import org.mozilla.gecko.util.ThreadUtils;
 
 /**
@@ -192,9 +193,15 @@ public class BookmarkStateChangeDelegate extends BrowserAppDelegateWithReference
             }
         });
 
-        final PromptListItem[] items = new PromptListItem[2];
-        items[0] = new PromptListItem(res.getString(R.string.contextmenu_edit_bookmark));
-        items[1] = new PromptListItem(res.getString(R.string.contextmenu_add_page_shortcut));
+        final PromptListItem[] items;
+        if  (ShortcutUtils.isPinShortcutSupported()) {
+            items = new PromptListItem[2];
+            items[0] = new PromptListItem(res.getString(R.string.contextmenu_edit_bookmark));
+            items[1] = new PromptListItem(res.getString(R.string.contextmenu_add_page_shortcut));
+        } else {
+            items = new PromptListItem[1];
+            items[0] = new PromptListItem(res.getString(R.string.contextmenu_edit_bookmark));
+        }
 
         ps.show("", "", items, ListView.CHOICE_MODE_NONE);
     }

mobile/android/base/java/org/mozilla/gecko/toolbar/PageActionLayout.java

@@ -11,11 +11,12 @@ import org.mozilla.gecko.R;
 import org.mozilla.gecko.Tab;
 import org.mozilla.gecko.Tabs;
 import org.mozilla.gecko.preferences.GeckoPreferences;
-import org.mozilla.gecko.util.DrawableUtil;
-import org.mozilla.gecko.util.ResourceDrawableUtils;
 import org.mozilla.gecko.util.BundleEventListener;
+import org.mozilla.gecko.util.DrawableUtil;
 import org.mozilla.gecko.util.EventCallback;
 import org.mozilla.gecko.util.GeckoBundle;
+import org.mozilla.gecko.util.ResourceDrawableUtils;
+import org.mozilla.gecko.util.ShortcutUtils;
 import org.mozilla.gecko.util.ThreadUtils;
 import org.mozilla.gecko.widget.GeckoPopupMenu;
 import org.mozilla.gecko.widget.themed.ThemedImageButton;
@@ -169,7 +170,7 @@ public class PageActionLayout extends ThemedLinearLayout implements BundleEventL
         if (UUID_PAGE_ACTION_PWA.equals(id)) {
             final SharedPreferences prefs = GeckoSharedPrefs.forApp(getContext());
             final boolean show = prefs.getBoolean(PREF_PWA_ONBOARDING, true);
-            if (show) {
+            if (show && ShortcutUtils.isPinShortcutSupported()) {
                 PwaOnboarding.show(getContext());
                 prefs.edit().putBoolean(PREF_PWA_ONBOARDING, false).apply();
             }

mobile/android/base/java/org/mozilla/gecko/util/ShortcutUtils.java

@@ -114,6 +114,29 @@ public class ShortcutUtils {
         // mgr.requestPinShortcut(info, null);
     }
 
+    public static boolean isPinShortcutSupported() {
+        if (Versions.feature26Plus) {
+            return isPinShortcutSupported26();
+        }
+        return true;
+    }
+
+    @TargetApi(26)
+    private static boolean isPinShortcutSupported26() {
+        final Context context = GeckoAppShell.getApplicationContext();
+        try {
+            final Class<?> mgrCls = Class.forName("android.content.pm.ShortcutManager");
+            final Object mgr = context.getSystemService(mgrCls);
+
+            final boolean supported = (boolean)
+                mgrCls.getDeclaredMethod("isRequestPinShortcutSupported")
+                .invoke(mgr);
+            return supported;
+        } catch (final Exception e) {
+            return false;
+        }
+    }
+
     private static Bitmap getLauncherIcon(Bitmap aSource, int size) {
         final float[] DEFAULT_LAUNCHER_ICON_HSV = { 32.0f, 1.0f, 1.0f };
         final int kOffset = 6;