AudioSource: add indexOf

Author: pschatzmann

src/AudioTools/Disk/AudioSource.h

@@ -230,12 +230,9 @@ class AudioSourceVector : public AudioSource {
     TRACED();
     if (path == nullptr) return nullptr;
 
-    // Find the file by path
-    for (int i = 0; i < (int)files.size(); i++) {
-      Str fullPath = getFullPath(i);
-      if (fullPath.equals(path)) {
-        return selectStream(i);
-      }
+    int idx = indexOf(path);
+    if (idx >= 0) {
+      return selectStream(idx);
     }
 
     LOGE("File not found: %s", path);
@@ -247,6 +244,20 @@ class AudioSourceVector : public AudioSource {
     return current_index; 
   }
 
+  /// Find index of file by path
+  int indexOf(const char* path) {
+    if (path == nullptr) return -1;
+    
+    // Find the file by path
+    for (int i = 0; i < (int)files.size(); i++) {
+      Str fullPath = getFullPath(i);
+      if (fullPath.equals(path)) {
+        return i;
+      }
+    }
+    return -1;
+  }
+  
   /// Add a file with full path (path and name will be separated automatically)
   void addName(const char* nameWithPath) {
     TRACED();
@@ -326,6 +337,11 @@ class AudioSourceVector : public AudioSource {
     }
     return nullptr; 
   }
+
+  /// provides the name at the given index
+  const char* name(int index){
+    return getFullPath(index).c_str();
+  }
 
  protected:
   Vector<FileEntry> files;
@@ -464,12 +480,9 @@ class AudioSourceArray : public AudioSource {
     TRACED();
     if (path == nullptr) return nullptr;
 
-    // Find the file by path
-    for (int i = 0; i < (int)array_size; i++) {
-      const char* filePath = file_array[i];
-      if (StrView(path).equals(filePath)) {
-        return selectStream(i);
-      }
+    int idx = indexOf(path);
+    if (idx >= 0) {
+      return selectStream(idx);
     }
 
     LOGE("File not found: %s", path);
@@ -481,6 +494,20 @@ class AudioSourceArray : public AudioSource {
     return current_index; 
   }
 
+  /// Find index of file by path
+  int indexOf(const char* path) {
+    if (path == nullptr) return -1;
+    
+    // Find the file by path
+    for (int i = 0; i < (int)array_size; i++) {
+      const char* filePath = file_array[i];
+      if (filePath && StrView(path).equals(filePath)) {
+        return i;
+      }
+    }
+    return -1;
+  }
+  
   /// Set the array of file names
   template<size_t N>
   void setArray(const char* (&nameArray)[N]) {
@@ -533,7 +560,13 @@ class AudioSourceArray : public AudioSource {
     }
     return nullptr; 
   }
+
+  /// provides the name at the given index
+  const char* name(int index){
+    return getFilePath(index);
+  }
 
+ 
  protected:
   const char* const* file_array = nullptr;  // Pointer to array of const char*
   size_t array_size = 0;