open module app preferences per domain

app/src/main/java/com/trianguloy/urlchecker/modules/list/OpenModule.java

@@ -178,7 +178,7 @@ class OpenDialog extends AModuleDialog implements View.OnClickListener, PopupMen
         }
 
         // sort
-        lastOpened.sort(packages);
+        lastOpened.sort(packages, getUrl());
 
         // set
         btn_open.setText(getActivity().getString(R.string.mOpen_with, PackageUtilities.getPackageName(packages.get(0), getActivity())));
@@ -207,7 +207,7 @@ class OpenDialog extends AModuleDialog implements View.OnClickListener, PopupMen
 
         // update chosen
         String chosed = packages.get(index);
-        lastOpened.usedPackage(chosed);
+        lastOpened.usedPackage(chosed, getUrl());
 
         // open
         Intent intent = new Intent(getActivity().getIntent());

app/src/main/java/com/trianguloy/urlchecker/utilities/LastOpened.java

@@ -2,7 +2,9 @@ package com.trianguloy.urlchecker.utilities;
 
 import android.content.Context;
 
-import java.util.ArrayList;
+import java.net.URL;
+import java.util.Arrays;
+import java.util.Collections;
 import java.util.List;
 
 /**
@@ -15,72 +17,70 @@ public class LastOpened {
      */
     private static final int N = 5;
 
-    /**
-     * The preferences
-     */
-    private final List<GenericPref.Str> list = new ArrayList<>(N);
     private static final String PREFIX = "opened";
 
+    private final Context cntx;
+
     /**
      * Initializes this utility
-     *
-     * @param cntx base context
      */
     public LastOpened(Context cntx) {
-        for (int i = 0; i < N; i++) {
+        this.cntx = cntx;
-            GenericPref.Str gp = new GenericPref.Str(PREFIX + i, null);
-            gp.init(cntx);
-            list.add(gp);
-        }
 
         // debug
 //        System.out.println(list);
     }
 
     /**
-     * Sorts an existing list with the last opened
+     * Sorts an existing list of packages in-place with the last opened for a given url
-     *
-     * @param packs list to sort
      */
-    public void sort(List<String> packs) {
+    public void sort(List<String> packs, String url) {
-        // check if a priority app is in the list
+        List<String> priority = getPriority(url).get();
-        for (int i = 0; i < N; i++) {
+
-            final String pack = list.get(i).get();
+        // sort list based on priority
-            // and if it is, move to front
+        Collections.sort(packs, (p1, p2) -> Integer.compare(priority.indexOf(p1), priority.indexOf(p2)));
-            if (packs.contains(pack)) {
-                packs.remove(pack);
-                packs.add(0, pack);
-            }
-        }
     }
 
     /**
-     * Marks a package as used, updating the priority list
+     * Returns the priority list preferences for a given url.
-     *
+     * The most preferred is the last.
-     * @param pack packagename of the used app
      */
-    public void usedPackage(String pack) {
+    private GenericPref.LstStr getPriority(String url) {
-
+        // get top level domain and first subdomain (if any)
-        // check if already the most used, and move all one below
+        String domain;
-        if (pack.equals(list.get(N - 1).get())) {
+        try {
-            for (int i = 0; i < N - 3; ++i) {
+            List<String> domainParts = Arrays.asList(new URL(url).getHost().split("\\.", 3));
-                list.get(i).set(list.get(i + 1).get());
+            domain = String.join(".", domainParts.size() < 2 ? domainParts : domainParts.subList(0, 2));
-            }
+        } catch (Exception e) {
-            list.get(N - 2).set(null);
+            e.printStackTrace();
-            return;
+            domain = "";
         }
 
-        // check intermediate ones, and swap with previous
+        // init list for that domain
-        for (int i = N - 2; i >= 0; i--) {
+        GenericPref.LstStr pref = new GenericPref.LstStr(PREFIX + domain, ";", Collections.emptyList());
-            if (pack.equals(list.get(i).get())) {
+        pref.init(cntx);
-                String prev = list.get(i).get();
+        return pref;
-                list.get(i).set(list.get(i + 1).get());
+    }
-                list.get(i + 1).set(prev);
+
-                return;
+    /**
-            }
+     * Marks a package as used for a given url, updating the priority list
+     */
+    public void usedPackage(String pack, String url) {
+        GenericPref<List<String>> pref = getPriority(url);
+        List<String> priority = pref.get();
+
+        // update
+        int i = priority.indexOf(pack);
+        if (i >= 0 && i < priority.size()) {
+            // already present and not most prioritized, shift up
+            Collections.swap(priority, i, i + 1);
+        } else if (i == -1) {
+            // not present, add as last (keep to N max)
+            while (priority.size() >= N) priority.remove(0);
+            priority.add(0, pack);
         }
 
-        // if not in list, set as last
+        // save
-        list.get(0).set(pack);
+        pref.set(priority);
     }
 }