Initial Alpine Version

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+/*
+ * $Id: foldertype.h 768 2007-10-24 00:10:03Z hubert@u.washington.edu $
+ *
+ * ========================================================================
+ * Copyright 2006-2007 University of Washington
+ * Copyright 2013 Eduardo Chappa
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * ========================================================================
+ */
+
+#ifndef PITH_FOLDERTYPE_INCLUDED
+#define PITH_FOLDERTYPE_INCLUDED
+
+
+#include "../pith/conftype.h"
+#include "../pith/string.h"
+
+
+/*
+ * Type definitions for folder and context structures.
+ */
+
+
+/*------------------------------
+   Used for displaying as well as
+   keeping track of folders. 
+  ----*/
+typedef struct folder {
+    unsigned char   name_len;			/* name length		      */
+    unsigned	    isfolder:1;			/* is it a folder?	      */
+    unsigned	    isdir:1;			/* is it a directory?	      */
+		    /* isdual is only set if the user has the separate
+		       directory and folder display option set. Otherwise,
+		       we can tell it's dual use because both isfolder
+		       and isdir will be set. */
+    unsigned	    isdual:1;			/* dual use                   */
+    unsigned        haschildren:1;              /* dir known to have children */
+    unsigned        hasnochildren:1;            /* known not to have children */
+    unsigned	    scanned:1;			/* scanned by c-client	      */
+    unsigned	    selected:1;			/* selected by user	      */
+    unsigned	    subscribed:1;		/* selected by user	      */
+    unsigned	    unseen_valid:1;		/* unseen count is valid      */
+    unsigned long   varhash;			/* hash of var for incoming   */
+    imapuid_t       uidvalidity;		/* only for #move folder      */
+    imapuid_t       uidnext;			/* only for #move folder      */
+    char	   *nickname;			/* folder's short name        */
+    unsigned long   unseen;			/* for monitoring unseen      */
+    unsigned long   new;			/* for monitoring unseen      */
+    unsigned long   total;			/* for monitoring unseen      */
+    time_t          last_unseen_update;		/* see LUU_ constants below   */
+    char	    name[1];			/* folder's name              */
+} FOLDER_S;
+
+
+/* special values stored in last_unseen_update */
+#define LUU_INIT	((time_t) 0)	/* before first check is done */
+#define LUU_NEVERCHK	((time_t) 1)	/* don't check this folder */
+#define LUU_NOMORECHK	((time_t) 2)	/* check failed so stop checking */
+
+/* this value is eligible for checking */
+#define LUU_YES(luu)	(((luu) != LUU_NEVERCHK) && ((luu) != LUU_NOMORECHK))
+
+
+/*
+ * Folder List Structure - provides for two ways to access and manage
+ *                         folder list data.  One as an array of pointers
+ *                         to folder structs or
+ */
+typedef struct folder_list {
+    unsigned   used;
+    unsigned   allocated;
+    FOLDER_S **folders;		/* array of pointers to folder structs */
+} FLIST;
+
+
+/*
+ * digested form of context including pointer to the parent
+ * level of hierarchy...
+ */
+typedef struct folder_dir {
+    char	   *ref,			/* collection location     */
+		   *desc,			/* Optional description	   */
+		    delim,			/* dir/file delimiter      */
+		    status;			/* folder data's status    */
+    struct {
+	char	   *user,
+		   *internal;
+    } view;					/* file's within dir	   */
+
+    FLIST          *folders;			/* folder data             */
+    struct folder_dir *prev;			/* parent directory	   */
+} FDIR_S;
+
+
+typedef struct selected_s {
+    char	*reference;	                /* location of selected	   */
+    STRLIST_S   *folders;			/* list of selected	   */
+    unsigned     zoomed:1;			/* zoomed state		   */
+    struct selected_s  *sub;
+} SELECTED_S;
+
+
+/*------------------------------
+    Stucture to keep track of the various folder collections being
+    dealt with.
+  ----*/
+typedef struct context {
+    FDIR_S	    *dir;			/* directory stack	   */
+    char	    *context,			/* raw context string	   */
+		    *server,			/* server name/parms	   */
+		    *nickname,			/* user provided nickname  */
+		    *label,			/* Description		   */
+		    *comment,			/* Optional comment	   */
+		     last_folder[MAXFOLDER+1];	/* last folder used        */
+    struct {
+	struct variable *v;			/* variable where defined  */
+	short		 i;			/* index into config list  */
+    } var;
+
+    unsigned short   use,			/* use flags (see below)   */
+		     d_line;			/* display line for labels */
+    SELECTED_S       selected;
+    struct context  *next,			/* next context struct	   */
+		    *prev;			/* previous context struct */
+} CONTEXT_S;
+
+/*
+ * Flags to indicate context (i.e., folder collection) use
+ */
+#define	CNTXT_PSEUDO	0x0001			/* fake folder entry exists  */
+#define	CNTXT_INCMNG	0x0002			/* inbox collection	     */
+#define	CNTXT_SAVEDFLT	0x0004			/* default save collection   */
+#define	CNTXT_PARTFIND	0x0008			/* partial find done         */
+#define	CNTXT_NOFIND	0x0010			/* no find done in context   */
+#define	CNTXT_FINDALL   0x0020			/* Do a find_all on context  */
+#define	CNTXT_NEWS	0x0040			/* News namespace collection */
+#define	CNTXT_SUBDIR	0x0080			/* subdirectory within col'n */
+#define	CNTXT_PRESRV	0x0100			/* preserve/restore selected */
+#define	CNTXT_ZOOM	0x0200			/* context display narrowed  */
+#define	CNTXT_INHERIT	0x1000
+
+
+/*
+ * Macros to help users of above two structures...
+ */
+#define	NEWS_TEST(c)	((c) && ((c)->use & CNTXT_NEWS))
+			 
+#define	FOLDERS(c)	((c)->dir->folders)
+#define	FLDR_NAME(X)	((X) ? ((X)->nickname ? (X)->nickname : (X)->name) :"")
+#define	ALL_FOUND(X)	(((X)->dir->status & CNTXT_NOFIND) == 0 && \
+			  ((X)->dir->status & CNTXT_PARTFIND) == 0)
+
+
+/* exported protoypes */
+
+
+#endif /* PITH_FOLDERTYPE_INCLUDED */