Add support for a page to be module dependent if using a moduleFileRe…

…pository

Will be used in Tinkers Complement as its added modifiers are dependent on certain mods/modules being loaded

src/main/java/slimeknights/mantle/client/book/data/PageDataModule.java

@@ -0,0 +1,6 @@
+package slimeknights.mantle.client.book.data;
+
+public class PageDataModule extends PageData {
+    /** Module required to load this section, see {@link slimeknights.mantle.pulsar.control.PulseManager#isPulseLoaded(String)} for more details */
+    public String module = "";
+}

src/main/java/slimeknights/mantle/client/book/data/SectionData.java

@@ -58,7 +58,7 @@ public void load() {
         String data = source.resourceToString(pagesInfo);
         if(!data.isEmpty()) {
           try {
-            pages = new ArrayList<>(Arrays.asList(BookLoader.GSON.fromJson(data, PageData[].class)));
+            pages = getPages(data);
           } catch(Exception e) {
             pages = new ArrayList<>();
             PageData pdError = new PageData(true);
@@ -81,6 +81,15 @@ public void load() {
     icon.location = source.getResourceLocation(icon.file, true);
   }
 
+  /**
+   * Gets a list of pages from the given data
+   * @param data  JSON data
+   * @return  ArrayList of pages for the book
+   */
+  protected ArrayList<PageData> getPages(String data) {
+    return new ArrayList<>(Arrays.asList(BookLoader.GSON.fromJson(data, PageData[].class)));
+  }
+
   public void update(@Nullable GuiBook.AdvancementCache advancementCache) {
   }
 

src/main/java/slimeknights/mantle/client/book/data/SectionDataModule.java

@@ -1,5 +1,27 @@
 package slimeknights.mantle.client.book.data;
 
+import slimeknights.mantle.client.book.BookLoader;
+import slimeknights.mantle.client.book.repository.ModuleFileRepository;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.function.Predicate;
+import java.util.stream.Collectors;
+
 public class SectionDataModule extends SectionData {
+  /** Module required to load this section, see {@link slimeknights.mantle.pulsar.control.PulseManager#isPulseLoaded(String)} for more details */
   public String module = "";
+
+  @Override
+  protected ArrayList<PageData> getPages(String data) {
+      // this should always be the case, but just for safety
+      if(source instanceof ModuleFileRepository) {
+          // just filters out pages where the module is not loaded
+          Predicate<String> manager = ((ModuleFileRepository)source).getManager();
+          return new ArrayList<>(Arrays.stream(BookLoader.GSON.fromJson(data, PageDataModule[].class))
+                  .filter((page)->page.module.isEmpty() || manager.test(page.module))
+                  .collect(Collectors.toList()));
+      }
+      return super.getPages(data);
+    }
 }

src/main/java/slimeknights/mantle/client/book/repository/ModuleFileRepository.java

@@ -31,4 +31,12 @@ public List<SectionData> getSections() {
 				.filter((section)->section.module.isEmpty() || manager.test(section.module))
 				.collect(Collectors.toList());
 	}
+
+	/**
+	 * Gets the manager used to determine if a module is available
+	 * @return  Predicate to test a module availability
+	 */
+	public Predicate<String> getManager() {
+		return manager;
+	}
 }