nsDialogs: the next InstallOptions

git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@5199 212acab6-be3b-0410-9dea-997c60f758d6

Contrib/nsDialogs/browse.c

@@ -0,0 +1,153 @@
+#include <windows.h>
+#include <shlobj.h>
+
+#include "defs.h"
+#include "nsis.h"
+
+int CALLBACK BrowseCallbackProc(HWND hwnd, UINT uMsg, LPARAM lp, LPARAM pData) {
+  if (uMsg == BFFM_INITIALIZED)
+    SendMessage(hwnd, BFFM_SETSELECTION, TRUE, pData);
+
+  return 0;
+}
+
+void __declspec(dllexport) SelectFolderDialog(HWND hwndParent, int string_size, char *variables, stack_t **stacktop, extra_parameters *extra)
+{
+  BROWSEINFO bi;
+
+  char result[MAX_PATH];
+  char initial[MAX_PATH];
+  char title[1024];
+  LPITEMIDLIST resultPIDL;
+
+  EXDLL_INIT();
+
+  if (popstring(title, sizeof(initial)))
+  {
+    pushstring("error");
+    return;
+  }
+
+  if (popstring(initial, sizeof(title)))
+  {
+    pushstring("error");
+    return;
+  }
+
+  bi.hwndOwner = hwndParent;
+  bi.pidlRoot = NULL;
+  bi.pszDisplayName = result;
+  bi.lpszTitle = title;
+#ifndef BIF_NEWDIALOGSTYLE
+#define BIF_NEWDIALOGSTYLE 0x0040
+#endif
+  bi.ulFlags = BIF_STATUSTEXT | BIF_RETURNONLYFSDIRS | BIF_NEWDIALOGSTYLE;
+  bi.lpfn = BrowseCallbackProc;
+  bi.lParam = (LPARAM) initial;
+  bi.iImage = 0;
+
+  /*if (pField->pszRoot) {
+    LPSHELLFOLDER sf;
+    ULONG eaten;
+    LPITEMIDLIST root;
+    int ccRoot = (lstrlen(pField->pszRoot) * 2) + 2;
+    LPWSTR pwszRoot = (LPWSTR) MALLOC(ccRoot);
+    MultiByteToWideChar(CP_ACP, 0, pField->pszRoot, -1, pwszRoot, ccRoot);
+    SHGetDesktopFolder(&sf);
+    sf->ParseDisplayName(hConfigWindow, NULL, pwszRoot, &eaten, &root, NULL);
+    bi.pidlRoot = root;
+    sf->Release();
+    FREE(pwszRoot);
+  }*/
+
+  resultPIDL = SHBrowseForFolder(&bi);
+  if (!resultPIDL)
+  {
+    pushstring("error");
+    return;
+  }
+
+  if (SHGetPathFromIDList(resultPIDL, result))
+  {
+    pushstring(result);
+  }
+  else
+  {
+    pushstring("error");
+  }
+
+  CoTaskMemFree(resultPIDL);
+}
+
+void __declspec(dllexport) SelectFileDialog(HWND hwndParent, int string_size, char *variables, stack_t **stacktop, extra_parameters *extra)
+{
+  OPENFILENAME ofn={0,}; // XXX WTF
+  int save;
+  char type[5];
+  char path[1024];
+  char filter[1024];
+  char currentDirectory[1024];
+
+  EXDLL_INIT();
+
+  ofn.lStructSize = sizeof(OPENFILENAME);
+  ofn.hwndOwner = hwndParent;
+  ofn.lpstrFilter = filter;
+  ofn.lpstrFile = path;
+  ofn.nMaxFile  = sizeof(path);
+  //ofn.Flags = pField->nFlags & (OFN_OVERWRITEPROMPT | OFN_HIDEREADONLY | OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST | OFN_CREATEPROMPT | OFN_EXPLORER);
+  ofn.Flags = OFN_CREATEPROMPT | OFN_EXPLORER;
+
+  popstring(type, sizeof(type));
+  popstring(path, sizeof(path));
+  popstring(filter, sizeof(filter));
+
+  save = !lstrcmpi(type, "save");
+
+  if (!filter[0])
+  {
+    lstrcpy(filter, "All Files|*.*");
+  }
+
+  {
+    // Convert the filter to the format required by Windows: NULL after each
+    // item followed by a terminating NULL
+    char *p = filter;
+    while (*p) // XXX take care for 1024
+    {
+      if (*p == '|')
+      {
+        *p++ = 0;
+      }
+      else
+      {
+        p = CharNext(p);
+      }
+    }
+    p++;
+    *p = 0;
+  }
+
+  GetCurrentDirectory(sizeof(currentDirectory), currentDirectory); // save working dir
+
+  if ((save ? GetSaveFileName(&ofn) : GetOpenFileName(&ofn)))
+  {
+    pushstring(path);
+  }
+  else if (CommDlgExtendedError() == FNERR_INVALIDFILENAME)
+  {
+    *path = '\0';
+    if ((save ? GetSaveFileName(&ofn) : GetOpenFileName(&ofn)))
+    {
+      pushstring(path);
+    }
+    else
+    {
+      pushstring("");
+    }
+  }
+
+  // restore working dir
+  // OFN_NOCHANGEDIR doesn't always work (see MSDN)
+  SetCurrentDirectory(currentDirectory);
+}