Adapt Android mobile controls and native client UI

extension/src/port/EterPack/EterPack.cpp

@@ -33,6 +33,32 @@
 
 #include <iostream>
 #include <fstream>
+#if !defined(_WIN32)
+#include <dirent.h> // PORT: resolve separately cased .eix/.epk names on case-sensitive mobile filesystems
+#include <strings.h> // PORT: strcasecmp for the on-disk pack name lookup
+
+// PORT: 40250 ships pairs such as ETC.eix and Etc.epk. Windows opens both through the
+// same stem; Android must locate each file using its actual on-disk spelling.
+static std::string ResolvePackFileName(const std::string& requested)
+{
+	const std::string::size_type slash = requested.find_last_of('/');
+	const std::string folder = slash == std::string::npos ? "." : requested.substr(0, slash);
+	const std::string name = requested.substr(slash == std::string::npos ? 0 : slash + 1);
+	DIR* dir = opendir(folder.c_str());
+	if (!dir) return requested;
+	std::string result = requested;
+	while (dirent* entry = readdir(dir))
+	{
+		if (strcasecmp(entry->d_name, name.c_str()) == 0)
+		{
+			result = folder + "/" + entry->d_name;
+			break;
+		}
+	}
+	closedir(dir);
+	return result;
+}
+#endif
 
 void CMakePackLog::SetFileName(const char* c_szFileName)
 {
@@ -257,6 +283,18 @@ bool CEterPack::Create(CEterFileDict& rkFileDict, const char * dbname, const cha
 
 	m_stDataFileName = dbname;
 	m_stDataFileName += ".epk";
+	// PORT: the two extensions may have different capitalization in the original Client/pack.
+#if !defined(_WIN32)
+	if (bReadOnly)
+	{
+		const std::string indexName = ResolvePackFileName(m_indexFileName);
+		if (indexName.size() < sizeof(m_indexFileName))
+		{
+			strcpy(m_indexFileName, indexName.c_str());
+		}
+		m_stDataFileName = ResolvePackFileName(m_stDataFileName);
+	}
+#endif
 	
 	m_bReadOnly = bReadOnly;