Started implementing mh store/folder as a test provider. Next will be pop3.

1999-08-03  bertrand  <Bertrand.Guiheneuf@aful.org>

	* camel/providers/MH/camel-mh-folder.c (_create):
	implemented.
	(_delete): started implementation.

	* camel/camel-folder.c (_get_folder): default implementation
	calls camel_store_get_folder ().

	* camel/providers/MH/camel-mh-folder.c (_init_with_store):
	implemented.

	* camel/camel-folder.h (struct _CamelFolder):
	remove useless exist_on_store field.

	* camel/camel-folder.c (_exists):
	do not use exist_on_store field.

svn path=/trunk/; revision=1073

4 files changed, 145 insertions, 32 deletions

diff --git a/ChangeLog b/ChangeLog
index 0d376c6d2c..e67de255f3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,21 @@
 1999-08-03  bertrand  <Bertrand.Guiheneuf@aful.org>
 
+	* camel/providers/MH/camel-mh-folder.c (_create): 
+	implemented.
+	(_delete): started implementation.
+
+	* camel/camel-folder.c (_get_folder): default implementation 
+	calls camel_store_get_folder ().
+
+	* camel/providers/MH/camel-mh-folder.c (_init_with_store): 
+	implemented.
+
+	* camel/camel-folder.h (struct _CamelFolder): 
+	remove useless exist_on_store field.
+
+	* camel/camel-folder.c (_exists): 
+	do not use exist_on_store field.
+
 	* camel/camel-folder.c (camel_folder_set_name): 
 	(camel_folder_get_name): 
 	new public functions 
diff --git a/camel/camel-folder.c b/camel/camel-folder.c
index db3e7f9f8a..2f103283d4 100644
--- a/camel/camel-folder.c
+++ b/camel/camel-folder.c
@@ -315,7 +315,7 @@ _can_hold_messages (CamelFolder *folder)
 
 
 /**
- * _exists: tests if the folder object exists in its parent  store.
+ * _exists: tests if the folder object exists in its parent store.
  * @folder: folder object
  * 
  * Test if a folder exists on a store. A folder can be 
@@ -327,7 +327,7 @@ _can_hold_messages (CamelFolder *folder)
 static gboolean
 _exists (CamelFolder *folder)
 {
-    return folder->exists_on_store;
+    return FALSE;
 }
 
 
@@ -350,30 +350,32 @@ _is_open (CamelFolder *folder)
 
 
 
-/** 
- * _get_folder: return the (sub)folder object that is specified.
- *
- * @folder : the folder
- * @folder_name: subfolder path. 
- *
- * This method returns a folder objects. This folder
- * is necessarily a subfolder of the current folder. 
- * It is an error to ask a folder begining with the 
- * folder separator character.  
- * 
- * 
- * Return value: Required folder. NULL if the subfolder object
- *        could not be obtained
- **/
+
 static CamelFolder *
 _get_folder (CamelFolder *folder, const gchar *folder_name)
 {
-    g_warning("getFolder called on the abstract CamelFolder class\n");
-    return NULL;
+	CamelFolder *new_folder;
+	gchar *full_name;
+	const gchar *current_folder_full_name;
+	gchar separator;
+
+	g_assert (folder);
+	g_assert (folder_name);
+
+	if (!folder->parent_store) return NULL;
+	
+	current_folder_full_name = camel_folder_get_full_name (folder);
+	if (!current_folder_full_name) return NULL;
+
+	separator = camel_store_get_separator (folder->parent_store);
+	full_name = g_strdup_printf ("%s%d%s", current_folder_full_name, separator, folder_name);
+	
+	new_folder = camel_store_get_folder (folder->parent_store, full_name);
+	return new_folder;
 }
 
 /** 
- * _get_folder: return the (sub)folder object that is specified.
+ * camel_folder_get_folder: return the (sub)folder object that is specified.
  *
  * @folder : the folder
  * @folder_name: subfolder path. 
@@ -396,16 +398,18 @@ camel_folder_get_folder(CamelFolder *folder, gchar *folder_name)
 
 
 /**
- * _create:
- * @folder: 
+ * _create: creates a folder on its store
+ * @folder: a CamelFolder object.
  * 
  * this routine handles the recursion mechanism.
  * Children classes have to implement the actual
  * creation mechanism. They must call this method
  * before physically creating the folder in order
  * to be sure the parent folder exists.
+ * Calling this routine on an existing folder is
+ * not an error, and returns %TRUE.
  * 
- * Return value: 
+ * Return value: %TRUE if the folder exists, %FALSE otherwise 
  **/
 static gboolean
 _create(CamelFolder *folder)
@@ -415,9 +419,9 @@ _create(CamelFolder *folder)
 	CamelFolder *parent;
 	gchar sep;
 
-
-	g_assert(folder->parent_store);
-	g_assert(folder->name);
+	g_assert (folder);
+	g_assert (folder->parent_store);
+	g_assert (folder->name);
 
 	if (CF_CLASS(folder)->exists (folder))
 		return TRUE;
@@ -511,7 +515,7 @@ _delete (CamelFolder *folder, gboolean recurse)
 		if (subfolders) {
 			sf = subfolders;
 			do {
-				CF_CLASS(sf->data)->delete(sf->data, TRUE);;
+				/*  CF_CLASS(sf->data)->delete(sf->data, TRUE); */
 			} while (sf = sf->next);
 		}
 	} else if (subfolders) return FALSE;
diff --git a/camel/camel-folder.h b/camel/camel-folder.h
index 69a082fe1f..40d7d8f303 100644
--- a/camel/camel-folder.h
+++ b/camel/camel-folder.h
@@ -61,7 +61,6 @@ struct _CamelFolder
 
 	gboolean can_hold_folders;
 	gboolean can_hold_messages;
-	gboolean exists_on_store;
 	CamelFolderOpenMode open_mode;
 	CamelFolderState open_state;
 	gchar *name;
diff --git a/camel/providers/MH/camel-mh-folder.c b/camel/providers/MH/camel-mh-folder.c
index 2db3a74e8e..206636578b 100644
--- a/camel/providers/MH/camel-mh-folder.c
+++ b/camel/providers/MH/camel-mh-folder.c
@@ -24,6 +24,11 @@
 #include "camel-mh-folder.h"
 #include "camel-mh-store.h"
 #include "gstring-util.h"
+#include <sys/stat.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <fcntl.h>
+ 
 
 
 static CamelFolderClass *parent_class=NULL;
@@ -34,16 +39,23 @@ static CamelFolderClass *parent_class=NULL;
 #define CMHS_CLASS(so) CAMEL_STORE_CLASS (GTK_OBJECT(so)->klass)
 
 static void _set_name(CamelFolder *folder, const gchar *name);
-
+static void _init_with_store (CamelFolder *folder, CamelStore *parent_store);
+static gboolean _exists (CamelFolder *folder);
+static gboolean _create(CamelFolder *folder);
 
 static void
 camel_mh_folder_class_init (CamelMhFolderClass *camel_mh_folder_class)
 {
+	CamelFolderClass *camel_folder_class = CAMEL_FOLDER_CLASS(camel_mh_folder_class);
+
 	parent_class = gtk_type_class (camel_folder_get_type ());
-	
+		
 	/* virtual method definition */
 	/* virtual method overload */
-	CAMEL_FOLDER_CLASS(camel_mh_folder_class)->set_name = _set_name;
+	camel_folder_class->init_with_store = _init_with_store;
+	camel_folder_class->set_name = _set_name;
+	camel_folder_class->exists = _exists;
+	
 }
 
 
@@ -77,6 +89,20 @@ camel_mh_folder_get_type (void)
 }
 
 
+
+
+static void 
+_init_with_store (CamelFolder *folder, CamelStore *parent_store)
+{
+	/* call parent method */
+	parent_class->init_with_store (folder, parent_store);
+	
+	folder->can_hold_messages = TRUE;
+	folder->can_hold_folders = TRUE;
+}
+
+
+
 /**
  * camel_mh_folder_set_name: set the name of an MH folder
  * @folder: the folder to set the name
@@ -88,10 +114,10 @@ camel_mh_folder_get_type (void)
 static void
 _set_name (CamelFolder *folder, const gchar *name)
 {
+	CamelMhFolder *mh_folder = CAMEL_MH_FOLDER(folder);
 	const gchar *root_dir_path;
 	gchar *full_name;
 	const gchar *parent_full_name;
-	CamelMhFolder *mh_folder = CAMEL_MH_FOLDER(folder);
 	gchar separator;
 
 	g_assert(folder);
@@ -110,3 +136,71 @@ _set_name (CamelFolder *folder, const gchar *name)
 
 }
 
+
+
+static gboolean
+_exists (CamelFolder *folder)
+{
+	CamelMhFolder *mh_folder = CAMEL_MH_FOLDER(folder);
+	struct stat stat_buf;
+	gint stat_error;
+	gboolean exists;
+
+	g_assert (folder);
+
+	if (!mh_folder->directory_path)  return FALSE;
+
+	stat_error = stat (mh_folder->directory_path, &stat_buf);
+	if (stat_error == -1)  return FALSE;
+
+	exists = S_ISDIR(stat_buf.st_mode);
+	return exists;
+}
+
+
+static gboolean
+_create(CamelFolder *folder)
+{
+	CamelMhFolder *mh_folder = CAMEL_MH_FOLDER(folder);
+	const gchar *directory_path;
+	mode_t dir_mode = S_IRWXU;
+	gint mkdir_error;
+
+	g_assert(folder);
+
+	/* call default implementation */
+	parent_class->create (folder);
+
+	directory_path = mh_folder->directory_path;
+	if (!directory_path) return FALSE;
+	
+	if (camel_folder_exists (folder)) return TRUE;
+	
+	mkdir_error = mkdir (directory_path, dir_mode);
+	return (mkdir_error == -1);
+}
+
+
+
+static gboolean
+_delete (CamelFolder *folder, gboolean recurse)
+{
+
+	CamelMhFolder *mh_folder = CAMEL_MH_FOLDER(folder);
+	const gchar *directory_path;
+	gint rmdir_error;
+	
+	g_assert(folder);
+
+	/* call default implementation */
+	parent_class->delete (folder, recurse);
+
+	directory_path = mh_folder->directory_path;
+	if (!directory_path) return FALSE;
+	
+	if (!camel_folder_exists (folder)) return TRUE;
+
+	
+	rmdir_error = rmdir (directory_path);
+
+}