1 files changed, 114 insertions, 0 deletions

diff --git a/CPP/7zip/FileManager/AppState.h b/CPP/7zip/FileManager/AppState.h
new file mode 100755
index 00000000..318c0258
--- /dev/null
+++ b/CPP/7zip/FileManager/AppState.h
@@ -0,0 +1,114 @@
+// AppState.h
+
+#ifndef __APPSTATE_H
+#define __APPSTATE_H
+
+#include "Windows/Synchronization.h"
+
+void inline AddUniqueStringToHead(UStringVector &list, 
+    const UString &string)
+{
+  for(int i = 0; i < list.Size();)
+    if (string.CompareNoCase(list[i]) == 0)
+      list.Delete(i);
+    else
+      i++;
+  list.Insert(0, string);
+}
+
+class CFastFolders
+{
+  NWindows::NSynchronization::CCriticalSection _criticalSection;
+public:
+  UStringVector Strings;
+  void SetString(int index, const UString &string)
+  {
+    NWindows::NSynchronization::CCriticalSectionLock lock(_criticalSection);
+    while(Strings.Size() <= index)
+      Strings.Add(UString());
+    Strings[index] = string;
+  }
+  UString GetString(int index)
+  {
+    NWindows::NSynchronization::CCriticalSectionLock lock(_criticalSection);
+    if (index >= Strings.Size())
+      return UString();
+    return Strings[index];
+  }
+  void Save()
+  {
+    NWindows::NSynchronization::CCriticalSectionLock lock(_criticalSection);
+    SaveFastFolders(Strings);
+  }
+  void Read()
+  {
+    NWindows::NSynchronization::CCriticalSectionLock lock(_criticalSection);
+    ReadFastFolders(Strings);
+  }
+};
+
+class CFolderHistory
+{
+  NWindows::NSynchronization::CCriticalSection _criticalSection;
+  UStringVector Strings;
+public:
+  
+  void GetList(UStringVector &foldersHistory)
+  {
+    NWindows::NSynchronization::CCriticalSectionLock lock(_criticalSection);
+    foldersHistory = Strings;
+  }
+  
+  void Normalize()
+  {
+    NWindows::NSynchronization::CCriticalSectionLock lock(_criticalSection);
+    const int kMaxSize = 100;
+    if (Strings.Size() > kMaxSize)
+      Strings.Delete(kMaxSize, Strings.Size() - kMaxSize);
+  }
+  
+  void AddString(const UString &string)
+  {
+    NWindows::NSynchronization::CCriticalSectionLock lock(_criticalSection);
+    AddUniqueStringToHead(Strings, string);
+    Normalize();
+  }
+  
+  void RemoveAll()
+  {
+    NWindows::NSynchronization::CCriticalSectionLock lock(_criticalSection);
+    Strings.Clear();
+  }
+  
+  void Save()
+  {
+    NWindows::NSynchronization::CCriticalSectionLock lock(_criticalSection);
+    SaveFolderHistory(Strings);
+  }
+  
+  void Read()
+  {
+    NWindows::NSynchronization::CCriticalSectionLock lock(_criticalSection);
+    ReadFolderHistory(Strings);
+    Normalize();
+  }
+};
+
+struct CAppState
+{
+  CFastFolders FastFolders;
+  CFolderHistory FolderHistory;
+  void Save()
+  {
+    FastFolders.Save();
+    FolderHistory.Save();
+  }
+  void Read()
+  {
+    FastFolders.Read();
+    FolderHistory.Read();
+  }
+};
+
+
+#endif
\ No newline at end of file