Preparation skeleton for Offline maps implementation

app/build.gradle.kts

@@ -46,6 +46,7 @@ dependencies {
     implementation(libs.constraintlayout)
     implementation(libs.viewpager2)
 
+    implementation("androidx.core:core-ktx:1.17.0")
     implementation("org.osmdroid:osmdroid-android:6.1.20")
     implementation("org.maplibre.gl:android-sdk:11.13.0")
     implementation("com.github.mapsforge.vtm:vtm:0.27.0")
@@ -61,7 +62,6 @@ dependencies {
     implementation("com.squareup.okhttp3:okhttp:4.12.0")
     implementation("com.fasterxml.jackson.core:jackson-databind:2.15.0")
     implementation("org.apache.commons:commons-lang3:3.14.0")
-    implementation(libs.core.ktx)
 
     testImplementation(libs.junit)
     androidTestImplementation(libs.ext.junit)

app/src/main/java/eu/konggdev/strikemaps/map/offline/OfflineTileResolver.java

@@ -0,0 +1,10 @@
+package eu.konggdev.strikemaps.map.offline;
+
+import java.io.IOException;
+public final class OfflineTileResolver {
+    public byte[] resolve(String url) throws IOException {
+
+        //byte[] data = getOfflineTile();
+        return null;
+    }
+}

app/src/main/java/eu/konggdev/strikemaps/map/offline/download/OfflineDownloader.java

@@ -0,0 +1,22 @@
+package eu.konggdev.strikemaps.map.offline.download;
+
+import eu.konggdev.strikemaps.map.source.MapSource;
+
+import java.net.URI;
+
+public final class OfflineDownloader {
+
+    public static String[] fetchAvailableExports(MapSource source) {
+        URI uri = URI.create(source.url);
+        String host = uri.getHost();
+        return new String[0];
+    }
+
+    public static void download(MapSource source, String export) {
+        //TODO
+    }
+
+    public static void download(MapSource source, int[] bounds) {
+        //TODO
+    }
+}

app/src/main/java/eu/konggdev/strikemaps/ui/UIComponent.java

@@ -12,6 +12,7 @@ import eu.konggdev.strikemaps.ui.element.region.content.MainContentRegion;
 import eu.konggdev.strikemaps.ui.element.region.UIRegion;
 import eu.konggdev.strikemaps.ui.fragment.layout.FragmentLayoutControls;
 import eu.konggdev.strikemaps.ui.fragment.layout.FragmentLayoutSearch;
+import eu.konggdev.strikemaps.ui.fragment.layout.content.main.FragmentLayoutContentOfflineMaps;
 import eu.konggdev.strikemaps.ui.fragment.layout.content.main.FragmentLayoutContentSettings;
 import eu.konggdev.strikemaps.ui.screen.Screen;
 import eu.konggdev.strikemaps.ui.screen.definition.DefinedScreen;
@@ -51,6 +52,13 @@ public class UIComponent implements Component {
                         Map.of(
                                 R.id.mainContentView, new MainContentRegion(new FragmentLayoutContentSettings(app), R.id.mainContentView)
                         )
+                ),
+                //Offline maps screen
+                DefinedScreen.OFFLINE, new Screen(
+                        app,
+                        Map.of(
+                                R.id.mainContentView, new MainContentRegion(new FragmentLayoutContentOfflineMaps(app), R.id.mainContentView)
+                        )
                 )
         );
     }

app/src/main/java/eu/konggdev/strikemaps/ui/element/item/PreviewItem.java

@@ -4,33 +4,36 @@ import android.graphics.Bitmap;
 import android.view.View;
 import android.widget.TextView;
 
+import androidx.annotation.NonNull;
 import eu.konggdev.strikemaps.ui.UIComponent;
 import org.maplibre.geojson.Feature;
 
 import eu.konggdev.strikemaps.R;
 public class PreviewItem implements UIItem {
-    public String name;
+    @NonNull public String name;
-    public String type;
+    public String details;
     public Bitmap image;
     boolean hasImage;
     public PreviewItem(String refName, String refType) {
         this.name = refName;
-        this.type = refType;
+        this.details = refType;
         hasImage = false;
     }
     public PreviewItem(String refName, String refType, Bitmap refImage) {
         this.name = refName;
-        this.type = refType;
+        this.details = refType;
         this.image = refImage;
         hasImage = true;
     }
+
     public static PreviewItem fromFeature(Feature feature) {
         return new PreviewItem(feature.getStringProperty("name"), feature.getStringProperty("class"));
     }
     public View makeView(UIComponent spawner) {
         View view = spawner.inflateUi(R.layout.item_preview);
         ((TextView) view.findViewById(R.id.choiceName)).setText(name);
-        ((TextView) view.findViewById(R.id.type)).setText(type);
+        if (details != null)
+            ((TextView) view.findViewById(R.id.details)).setText(details);
         return view;
     }
     public View makeView(UIComponent spawner, View.OnClickListener onClick) {

app/src/main/java/eu/konggdev/strikemaps/ui/element/item/UIItem.java

@@ -12,5 +12,4 @@ public interface UIItem {
     }
 
     default View.OnLongClickListener longClick(Runnable action) { return v -> { action.run(); return true; };}
-
 }

app/src/main/java/eu/konggdev/strikemaps/ui/fragment/layout/FragmentLayoutSearch.java

@@ -1,6 +1,5 @@
 package eu.konggdev.strikemaps.ui.fragment.layout;
 
-import android.app.AlertDialog;
 import android.graphics.Color;
 import android.graphics.drawable.ColorDrawable;
 import android.os.Bundle;
@@ -10,7 +9,6 @@ import android.view.ViewGroup;
 import android.widget.PopupWindow;
 import androidx.annotation.NonNull;
 import androidx.fragment.app.Fragment;
-import android.widget.PopupMenu;
 
 import eu.konggdev.strikemaps.R;
 import eu.konggdev.strikemaps.app.AppController;
@@ -41,9 +39,11 @@ public class FragmentLayoutSearch extends Fragment implements Layout {
     public void onViewCreated(@NonNull View view, Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
 
+
+
         setupButton(view, R.id.hamburgerButton, click(() -> {
 
-            View menuView = getLayoutInflater().inflate(R.layout.menu_dropdown, null);
+            View menuView = getLayoutInflater().inflate(R.layout.dropdown_main, null);
 
             PopupWindow popupWindow = new PopupWindow(
                     menuView,
@@ -85,5 +85,41 @@ public class FragmentLayoutSearch extends Fragment implements Layout {
             });
 
         }));
+
+        setupButton(view, R.id.offlineMapsButton, click(() -> {
+            View offlineMapsPopupView = getLayoutInflater().inflate(R.layout.dropdown_offline, null);
+
+            PopupWindow popupWindow = new PopupWindow(
+                    offlineMapsPopupView,
+                    ViewGroup.LayoutParams.WRAP_CONTENT,
+                    ViewGroup.LayoutParams.WRAP_CONTENT,
+                    true
+            );
+
+            popupWindow.setOutsideTouchable(true);
+            popupWindow.setFocusable(true);
+            popupWindow.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
+
+            View anchor = view.findViewById(R.id.searchContainer);
+
+            setupButton(offlineMapsPopupView, R.id.offlineMaps, click(() -> {
+                popupWindow.dismiss();
+                app.getUi().swapScreen(DefinedScreen.OFFLINE);
+            }));
+
+            anchor.post(() -> {
+
+                offlineMapsPopupView.measure(
+                        View.MeasureSpec.UNSPECIFIED,
+                        View.MeasureSpec.UNSPECIFIED
+                );
+
+                int popupWidth = offlineMapsPopupView.getMeasuredWidth();
+                int containerWidth = anchor.getWidth();
+
+                int xOffset = containerWidth - popupWidth;
+                popupWindow.showAsDropDown(anchor, xOffset, 1);
+            });
+        }));
     }
 }

app/src/main/java/eu/konggdev/strikemaps/ui/fragment/layout/content/main/FragmentLayoutContentOfflineMaps.java

@@ -0,0 +1,58 @@
+package eu.konggdev.strikemaps.ui.fragment.layout.content.main;
+
+import android.os.Bundle;
+import android.view.View;
+import android.widget.LinearLayout;
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
+import eu.konggdev.strikemaps.R;
+import eu.konggdev.strikemaps.app.AppController;
+import eu.konggdev.strikemaps.data.helper.FileHelper;
+import eu.konggdev.strikemaps.map.source.MapSource;
+import eu.konggdev.strikemaps.map.style.MapStyle;
+import eu.konggdev.strikemaps.ui.element.item.GenericItem;
+import eu.konggdev.strikemaps.ui.element.item.PreviewItem;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Objects;
+
+public class FragmentLayoutContentOfflineMaps extends Fragment implements MainContentLayout {
+    @NonNull AppController app;
+
+    public FragmentLayoutContentOfflineMaps(AppController app) {
+        super(R.layout.fragment_offline_maps);
+        this.app = app;
+    }
+
+    @Override
+    public Fragment toFragment() {
+        return this;
+    }
+
+    @Override
+    public void onViewCreated(@NonNull View view, Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+
+        List<MapSource> sources = new ArrayList<>();
+
+        List<String> stylePaths = new ArrayList<>();
+        stylePaths.addAll(Arrays.asList(FileHelper.getAssetFiles("bundled/style", ".style.json", app)));
+        stylePaths.addAll(Arrays.asList(FileHelper.getUserFiles("style", ".style.json", app)));
+        /* Parsing an entire MapStyle is absolutely unnecessary and resource wasteful
+           TODO: A method should be implemented to parse a List<MapSource> directly from the JSON */
+        for (String stylePath : stylePaths) {
+            MapStyle parsedStyle = MapStyle.fromFile(stylePath, app);
+            sources.addAll(parsedStyle.sources.values());
+        }
+
+        LinearLayout sourcesLayout = view.findViewById(R.id.llDownloadContainer);
+        for (MapSource source : sources) {
+            if (!Objects.equals(source.type, "raster"))
+                sourcesLayout.addView(new PreviewItem(source.url, "").makeView(app.getUi()));
+            else
+                sourcesLayout.addView(new PreviewItem(source.tiles.toString(), "").makeView(app.getUi()));
+        }
+    }
+}

app/src/main/java/eu/konggdev/strikemaps/ui/screen/definition/DefinedScreen.java

@@ -1,5 +1,6 @@
 package eu.konggdev.strikemaps.ui.screen.definition;
 public enum DefinedScreen {
     MAIN,
-    SETTINGS
+    SETTINGS,
+    OFFLINE
 }

app/src/main/res/drawable/ic_arrow_forward.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24"
+        android:viewportHeight="24"
+        android:tint="?attr/colorControlNormal">
+    <path
+            android:fillColor="#FFFFFF"
+            android:pathData="M12,4l-1.41,1.41L16.17,11H4v2h12.17l-5.58,5.59L12,20l8,-8z" />
+</vector>

app/src/main/res/drawable/ic_offline.xml

@@ -0,0 +1,5 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:tint="#000000" android:viewportHeight="24" android:viewportWidth="24" android:width="24dp">
+      
+    <path android:fillColor="@android:color/white" android:pathData="M12,2C6.49,2 2,6.49 2,12s4.49,10 10,10s10,-4.49 10,-10S17.51,2 12,2zM11,10V6h2v4h3l-4,4l-4,-4H11zM17,17H7v-2h10V17z"/>
+    
+</vector>

app/src/main/res/layout/dropdown_offline.xml

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                                                   android:layout_width="match_parent"
+                                                   android:layout_height="match_parent">
+
+    <com.google.android.material.card.MaterialCardView
+            xmlns:android="http://schemas.android.com/apk/res/android"
+            xmlns:app="http://schemas.android.com/apk/res-auto"
+            android:layout_width="200dp"
+            android:layout_height="wrap_content"
+            app:cardCornerRadius="12dp"
+            app:cardElevation="12dp"
+            app:cardBackgroundColor="#000000">
+
+        <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="vertical"
+                android:padding="8dp">
+
+            <TextView
+                    android:id="@+id/offlineMaps"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:padding="12dp"
+                    android:text="Offline Maps"
+                    android:textColor="#FFFFFF"
+                    android:background="?android:attr/selectableItemBackground"/>
+
+        </LinearLayout>
+
+    </com.google.android.material.card.MaterialCardView>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/fragment_map.xml

@@ -2,5 +2,4 @@
 <android.widget.LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
-
 </android.widget.LinearLayout>

app/src/main/res/layout/fragment_offline_maps.xml

@@ -0,0 +1,41 @@
+<androidx.constraintlayout.widget.ConstraintLayout
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:app="http://schemas.android.com/apk/res-auto"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="#000000">
+
+    <TextView
+            android:id="@+id/tvDownloadLabel"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="Download for source:"
+            android:textColor="#FFFFFF"
+            android:textSize="18sp"
+            android:includeFontPadding="true"
+            android:paddingBottom="4dp"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            android:layout_marginTop="16dp"
+            android:layout_marginStart="16dp" />
+
+    <androidx.core.widget.NestedScrollView
+            android:id="@+id/scrollDownloadContainer"
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            app:layout_constraintTop_toBottomOf="@id/tvDownloadLabel"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintBottom_toBottomOf="parent"
+            android:layout_marginTop="8dp"
+            android:fillViewport="true">
+
+        <LinearLayout
+                android:id="@+id/llDownloadContainer"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="vertical" />
+
+    </androidx.core.widget.NestedScrollView>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/fragment_search.xml

@@ -4,7 +4,7 @@
         xmlns:app="http://schemas.android.com/apk/res-auto"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:padding="6dp">
+        android:padding="12dp">
 
     <LinearLayout
             android:id="@+id/searchContainer"
@@ -26,6 +26,17 @@
                 android:queryHint="Search..."
                 android:background="@android:color/transparent" />
 
+        <ImageButton
+                android:id="@+id/offlineMapsButton"
+                android:layout_width="wrap_content"
+                android:layout_height="match_parent"
+                android:background="@android:color/transparent"
+                android:contentDescription="Offline Maps"
+                android:src="@drawable/ic_offline"
+                android:padding="6dp"
+                android:scaleType="fitCenter"
+                app:tint="#B0B0B0" />
+
         <ImageButton
                 android:id="@+id/hamburgerButton"
                 android:layout_width="wrap_content"

app/src/main/res/layout/item_preview.xml

@@ -1,10 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:background="#0E0000"
+    android:background="#000000"
     android:foregroundTint="#FFFFFF">
 
     <TextView
@@ -16,7 +15,7 @@
         android:layout_marginEnd="12dp"
         android:text="Choice Item"
         android:textColor="#FFFFFF"
-        android:textSize="24sp"
+        android:textSize="20sp"
         android:ellipsize="end"
         android:maxLines="1"
         android:scrollHorizontally="false"
@@ -24,12 +23,12 @@
         android:autoSizeMinTextSize="12sp"
         android:autoSizeMaxTextSize="24sp"
         android:autoSizeStepGranularity="1sp"
-        app:layout_constraintStart_toEndOf="@+id/poiIcon"
+        app:layout_constraintStart_toEndOf="@+id/icon"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
     <ImageView
-        android:id="@+id/poiIcon"
+        android:id="@+id/icon"
         android:layout_width="55dp"
         android:layout_height="55dp"
         android:layout_marginStart="7dp"
@@ -39,19 +38,18 @@
         app:srcCompat="@drawable/maplibre_info_bg_selector" />
 
     <TextView
-        android:id="@+id/type"
+        android:id="@+id/details"
         android:layout_width="0dp"
         android:layout_height="wrap_content"
         android:layout_marginStart="7dp"
         android:layout_marginEnd="12dp"
         android:layout_marginBottom="12dp"
-        android:text="Type"
         android:textColor="#FFFFFF"
         android:textSize="16sp"
         android:textStyle="bold"
         android:ellipsize="end"
         android:singleLine="true"
-        app:layout_constraintStart_toEndOf="@id/poiIcon"
+        app:layout_constraintStart_toEndOf="@id/icon"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintTop_toBottomOf="@id/choiceName"
         app:layout_constraintBottom_toBottomOf="parent"/>

build.gradle.kts

@@ -2,4 +2,4 @@
 plugins {
     alias(libs.plugins.android.application) apply false
     alias(libs.plugins.kotlin.android) apply false
-}
+}

gradle/libs.versions.toml

@@ -10,7 +10,6 @@ constraintlayout = "2.1.4"
 playServicesMaps = "19.0.0"
 viewpager2 = "1.1.0"
 kotlin = "2.3.10"
-coreKtx = "1.18.0"
 
 [libraries]
 junit = { group = "junit", name = "junit", version.ref = "junit" }
@@ -20,9 +19,7 @@ appcompat = { group = "androidx.appcompat", name = "appcompat", version.ref = "a
 material = { group = "com.google.android.material", name = "material", version.ref = "material" }
 activity = { group = "androidx.activity", name = "activity", version.ref = "activity" }
 constraintlayout = { group = "androidx.constraintlayout", name = "constraintlayout", version.ref = "constraintlayout" }
-play-services-maps = { group = "com.google.android.gms", name = "play-services-maps", version.ref = "playServicesMaps" }
 viewpager2 = { group = "androidx.viewpager2", name = "viewpager2", version.ref = "viewpager2" }
-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
 
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }