2007-06-12 Murray Cumming <murrayc@murrayc.com>
[modest] / src / modest-ui-dimming-rules.c
index 3572d5a..d81658a 100644 (file)
 #include <config.h>
 #endif /*HAVE_CONFIG_H*/
 
+#include <string.h>
 #include "modest-ui-dimming-rules.h"
+#include "modest-dimming-rule.h"
 #include "modest-tny-folder.h"
+#include <modest-runtime.h>
+
 
 static gboolean _folder_is_any_of_type (TnyFolder *folder, TnyFolderType types[], guint ntypes);
-static gboolean _invalid_msg_selected (ModestMainWindow *win, gboolean unique);
+static gboolean _invalid_msg_selected (ModestMainWindow *win, gboolean unique, ModestDimmingRule *rule);
+static gboolean _already_opened_msg (ModestWindow *win);
+static gboolean _selected_msg_marked_as (ModestWindow *win, TnyHeaderFlags mask, gboolean opposite);
+static gboolean _selected_folder_not_writeable (ModestMainWindow *win);
+static gboolean _selected_folder_is_any_of_type (ModestMainWindow *win, TnyFolderType types[], guint ntypes);
+static gboolean _selected_folder_is_root_or_inbox (ModestMainWindow *win);
+static gboolean _selected_folder_is_root (ModestMainWindow *win);
+static gboolean _selected_folder_is_empty (ModestMainWindow *win);
+static gboolean _msg_download_in_progress (ModestMsgViewWindow *win);
+static gboolean _msg_download_completed (ModestMainWindow *win);
+static gboolean _msg_sent_in_progress (ModestWindow *win);
+static gboolean _marked_as_deleted (ModestWindow *win);
+
+
+gboolean 
+modest_ui_dimming_rules_on_new_msg (ModestWindow *win, gpointer user_data)
+{
+       gboolean dimmed = FALSE;
+
+       g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
+               
+       /* Check dimmed rule */ 
+       if (!dimmed)
+               dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW(win));
+
+       return dimmed;
+}
 
 gboolean 
 modest_ui_dimming_rules_on_new_folder (ModestWindow *win, gpointer user_data)
 {
+       gboolean dimmed = FALSE;
        GtkWidget *folder_view = NULL;
        TnyFolderStore *parent_folder = NULL;
-       ModestTnyFolderRules rules;
-       gboolean dimmed = FALSE;
 
        g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 
-       /* Get folder view */
+
        folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
                                                           MODEST_WIDGET_TYPE_FOLDER_VIEW);
-       /* If no folder view, always dimmed */
-       if (!folder_view)
-               return TRUE;
-       
        /* Get selected folder as parent of new folder to create */
        parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
        if (!parent_folder)
                return TRUE;
        
+       if (TNY_IS_ACCOUNT (parent_folder)) {
+               /* If it's the local account then do not dim */
+               if (modest_tny_account_is_virtual_local_folders (
+                       TNY_ACCOUNT (parent_folder)))
+                       return FALSE;
+               else {
+                       const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
+                       /* If it's POP then dim */
+                       dimmed = (modest_protocol_info_get_transport_store_protocol (proto_str) == 
+                                 MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
+               }
+       } else {
+               /* TODO: the specs say that only one level of subfolder is allowed, is this true ? */
+
+               /* Apply folder rules */        
+               dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
+       }
+
+       return dimmed;
+}
+
+gboolean 
+modest_ui_dimming_rules_on_delete_folder (ModestWindow *win, gpointer user_data)
+{
+       gboolean dimmed = FALSE;
+
+       g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
+               
        /* Check dimmed rule */ 
-       rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
-       dimmed = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
+       if (!dimmed)
+               dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
+       if (!dimmed)
+               dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 
-       /* free */
-       g_object_unref (parent_folder);
+       return dimmed;
+}
+
+gboolean
+modest_ui_dimming_rules_on_sort (ModestWindow *win, gpointer user_data)
+{
+       gboolean dimmed = FALSE;
+
+       g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
+               
+       /* Check dimmed rule */ 
+       if (!dimmed)
+               dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
+
+       return dimmed;
+       
+}
+
+gboolean 
+modest_ui_dimming_rules_on_rename_folder (ModestWindow *win, gpointer user_data)
+{
+       gboolean dimmed = FALSE;
+
+       g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
+               
+       /* Check dimmed rule */ 
+       if (!dimmed)
+               dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
+       if (!dimmed)
+               dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 
        return dimmed;
 }
@@ -72,12 +155,21 @@ modest_ui_dimming_rules_on_new_folder (ModestWindow *win, gpointer user_data)
 gboolean 
 modest_ui_dimming_rules_on_open_msg (ModestWindow *win, gpointer user_data)
 {
+       ModestDimmingRule *rule = NULL;
        gboolean dimmed = FALSE;
 
        g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
+       g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
+       rule = MODEST_DIMMING_RULE (user_data);
                
        /* Check dimmed rule */ 
-       dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE);
+       if (!dimmed)
+               dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
+       if (!dimmed) {
+               dimmed = _msg_sent_in_progress (win);
+               if (dimmed)
+                       modest_dimming_rule_set_notification (rule, _("TEST"));
+       }
 
        return dimmed;
 }
@@ -85,61 +177,484 @@ modest_ui_dimming_rules_on_open_msg (ModestWindow *win, gpointer user_data)
 gboolean 
 modest_ui_dimming_rules_on_reply_msg (ModestWindow *win, gpointer user_data)
 {
-       GtkWidget *folder_view = NULL;
-       TnyFolderStore *current_folder = NULL;
-       gboolean local_folder = FALSE;
+       ModestDimmingRule *rule = NULL;
+       gboolean dimmed = FALSE;
+       TnyFolderType types[3];
+
+       g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
+       rule = MODEST_DIMMING_RULE (user_data);
+
+       /* main window dimming rules */
+       if (MODEST_IS_MAIN_WINDOW(win)) {
+               
+               types[0] = TNY_FOLDER_TYPE_DRAFTS; 
+               types[1] = TNY_FOLDER_TYPE_OUTBOX;
+               types[2] = TNY_FOLDER_TYPE_ROOT;
+               
+               /* Check dimmed rule */ 
+               if (!dimmed) {
+                       dimmed = _selected_folder_is_any_of_type (MODEST_MAIN_WINDOW(win), types, 3);                   
+                       if (dimmed)
+                               modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
+               }
+               if (!dimmed) {
+                       dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));                   
+                       if (dimmed)
+                               modest_dimming_rule_set_notification (rule, _("mcen_ib_nothing_to_reply"));
+               }
+               if (!dimmed)
+                       dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, rule);
+
+       /* msg view window dimming rules */
+       } else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
+               
+               /* Check dimmed rule */ 
+               if (!dimmed)
+                       dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW(win));
+       }
+       
+       return dimmed;
+}
+
+
+gboolean 
+modest_ui_dimming_rules_on_contents_msg (ModestWindow *win, gpointer user_data)
+{
        gboolean dimmed = FALSE;
-       TnyFolderType types[2];
 
        g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
+               
+       /* Check dimmed rule */ 
+       if (!dimmed)
+               dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
+       if (!dimmed)
+               dimmed = _msg_download_completed (MODEST_MAIN_WINDOW(win));
 
-       /* Get folder view */
-       folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
-                                                          MODEST_WIDGET_TYPE_FOLDER_VIEW);
-       /* If no folder view, always dimmed */
-       if (!folder_view)
-               return TRUE;
+       return dimmed;
+}
 
-       /* Get selected folder as parent of new folder to create */
-       current_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
-       if (!current_folder)
-               return TRUE;
+gboolean 
+modest_ui_dimming_rules_always_dimmed (ModestWindow *win, gpointer user_data)
+{
+       gboolean dimmed = FALSE;
+
+       g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
+               
+       /* Check dimmed rule */ 
+       if (!dimmed)
+               dimmed = TRUE;
+
+       return dimmed;
+}
+
+gboolean 
+modest_ui_dimming_rules_on_delete_msg (ModestWindow *win, gpointer user_data)
+{
+       ModestDimmingRule *rule = NULL;
+       gboolean dimmed = FALSE;
        
-       if (TNY_IS_FOLDER(current_folder))
-               local_folder = modest_tny_folder_is_local_folder (TNY_FOLDER(current_folder));
-       types[0] = TNY_FOLDER_TYPE_DRAFTS; 
-       types[1] = TNY_FOLDER_TYPE_OUTBOX;
+       g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
+       g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
+       rule = MODEST_DIMMING_RULE (user_data);
+       
+       /* Check dimmed rule */ 
+       if (!dimmed) {
+               dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));                   
+               if (dimmed)
+                       modest_dimming_rule_set_notification (rule, _("mcen_ib_nothing_to_del"));
+       }
+       if (!dimmed) {
+               dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
+               if (dimmed)
+                       modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
+       }
+       if (!dimmed) {
+               dimmed = _already_opened_msg (win);
+               if (dimmed)
+                       modest_dimming_rule_set_notification (rule, _("mcen_nc_unable_to_delete_n_messages"));
+       }
+       if (!dimmed) {
+               dimmed = _marked_as_deleted (win);
+               if (dimmed)
+                       modest_dimming_rule_set_notification (rule, _("mcen_ib_message_unableto_delete"));
+       }
+       if (!dimmed) {
+               dimmed = _msg_sent_in_progress (win);
+               if (dimmed)
+                       modest_dimming_rule_set_notification (rule, _("mcen_ib_message_unableto_delete"));
+       }
+
+       return dimmed;
+}
+
+gboolean 
+modest_ui_dimming_rules_on_details (ModestWindow *win, gpointer user_data)
+{
+       gboolean dimmed = FALSE;
+       GtkWidget *header_view = NULL;
+       
+       /* main window dimming rules */
+       if (MODEST_IS_MAIN_WINDOW(win)) {
+                               
+               /* Check dimmed rule */
+               header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
+                                                                  MODEST_WIDGET_TYPE_HEADER_VIEW);
+               
+               /* If the header view does not have the focus then do
+                  not apply msg dimming rules because the action will
+                  show the folder details that have no dimming
+                  rule */
+               if (gtk_widget_is_focus (header_view)) {
+                       /* Check dimmed rule */ 
+                       if (!dimmed)
+                               dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
+               }
+
+       /* msg view window dimming rules */
+       } else {
+
+               /* Check dimmed rule */ 
+               if (!dimmed)
+                       dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW(win));
+       }
+
+       return dimmed;
+}
+
+
+gboolean 
+modest_ui_dimming_rules_on_mark_as_read_msg (ModestWindow *win, gpointer user_data)
+{
+       gboolean dimmed = FALSE;
+       TnyHeaderFlags flags;
+
+       g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
+       
+       flags = TNY_HEADER_FLAG_SEEN; 
 
        /* Check dimmed rule */ 
        if (!dimmed)
-               dimmed = ((local_folder) && 
-                         (_folder_is_any_of_type (TNY_FOLDER(current_folder), types, 2)));
+               dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
+       if (!dimmed) 
+               dimmed = _selected_msg_marked_as (win, flags, FALSE);
+       
+       return dimmed;
+}
+
+gboolean 
+modest_ui_dimming_rules_on_mark_as_unread_msg (ModestWindow *win, gpointer user_data)
+{
+       gboolean dimmed = FALSE;
+       TnyHeaderFlags flags;
+
+       g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
        
+       flags = TNY_HEADER_FLAG_SEEN; 
+
+       /* Check dimmed rule */ 
        if (!dimmed)
-               dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE);
+               dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
+       if (!dimmed) 
+               dimmed = _selected_msg_marked_as (win, flags, TRUE);
 
-       /* free */
-       g_object_unref (current_folder);
+       return dimmed;
+}
+
+gboolean 
+modest_ui_dimming_rules_on_move_to (ModestWindow *win, gpointer user_data)
+{
+       gboolean dimmed = FALSE;
+
+       if (MODEST_IS_MAIN_WINDOW (win)) 
+               dimmed = modest_ui_dimming_rules_on_main_window_move_to (win, user_data);
+       else 
+               dimmed = modest_ui_dimming_rules_on_view_window_move_to (win, user_data);
 
        return dimmed;
 }
 
 
 gboolean 
-modest_ui_dimming_rules_on_contents_msg (ModestWindow *win, gpointer user_data)
+modest_ui_dimming_rules_on_main_window_move_to (ModestWindow *win, gpointer user_data)
 {
+       GtkWidget *folder_view = NULL;
+       GtkWidget *header_view = NULL;
        gboolean dimmed = FALSE;
+       
+       g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
+       
+       /* Get the folder view */
+       folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
+                                                          MODEST_WIDGET_TYPE_FOLDER_VIEW);
 
-       g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
+       /* Get header view */
+       header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
+                                                          MODEST_WIDGET_TYPE_HEADER_VIEW);
+
+       /* Check common diming rules */
+
+       /* Check diming rules for folder transfer  */
+       if (gtk_widget_is_focus (folder_view)) {
+               if (!dimmed) 
+                       dimmed = _selected_folder_not_writeable(MODEST_MAIN_WINDOW(win));
+       }
+       /* Check diming rules for msg transfer  */
+       else if (gtk_widget_is_focus (header_view)) {
+               if (!dimmed)
+                       dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
                
+       }
+
+       return dimmed;
+}
+
+gboolean 
+modest_ui_dimming_rules_on_view_window_move_to (ModestWindow *win, gpointer user_data)
+{
+       gboolean dimmed = FALSE;
+
+       return dimmed;
+}
+
+gboolean 
+modest_ui_dimming_rules_on_paste_msgs (ModestWindow *win, gpointer user_data)
+{
+       TnyFolderType types[3];
+       gboolean dimmed = FALSE;
+
+       g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
+
+       types[0] = TNY_FOLDER_TYPE_DRAFTS; 
+       types[1] = TNY_FOLDER_TYPE_OUTBOX;
+       types[2] = TNY_FOLDER_TYPE_SENT;
+       
+       /* Check dimmed rule */ 
+       if (!dimmed)
+               dimmed = _selected_folder_is_any_of_type (MODEST_MAIN_WINDOW(win), types, 3);
+
+       return dimmed;
+}
+
+gboolean 
+modest_ui_dimming_rules_on_delete_msgs (ModestWindow *win, gpointer user_data)
+{
+       TnyFolderType types[5];
+       gboolean dimmed = FALSE;
+
+       g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
+
+       types[0] = TNY_FOLDER_TYPE_DRAFTS; 
+       types[1] = TNY_FOLDER_TYPE_OUTBOX;
+       types[2] = TNY_FOLDER_TYPE_SENT;
+       types[3] = TNY_FOLDER_TYPE_INBOX;
+       types[4] = TNY_FOLDER_TYPE_ROOT;
+       
+       /* Check dimmed rule */ 
+       if (!dimmed)
+               dimmed = _selected_folder_is_any_of_type (MODEST_MAIN_WINDOW(win), types, 5);
+
+       return dimmed;
+}
+
+gboolean 
+modest_ui_dimming_rules_on_select_all (ModestWindow *win, gpointer user_data)
+{
+       gboolean dimmed = FALSE;
+
        /* Check dimmed rule */ 
-       dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE);
+       if (!dimmed) 
+               dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));                   
+               
+       return dimmed;
+}
+
 
+gboolean modest_ui_dimming_rules_on_tools_smtp_servers (ModestWindow *win, gpointer user_data)
+{
+       const gboolean dimmed = 
+               !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(), 
+                       TRUE);  
+               
        return dimmed;
 }
 
+
 /* *********************** static utility functions ******************** */
 
+static gboolean 
+_marked_as_deleted (ModestWindow *win)
+{
+       gboolean result = FALSE;
+       TnyHeaderFlags flags;
+
+       g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
+       
+       flags = TNY_HEADER_FLAG_DELETED; 
+
+       /* Check dimmed rule */ 
+       result = _selected_msg_marked_as (win, flags, FALSE);
+       
+       return result;
+}
+
+static gboolean
+_selected_folder_not_writeable (ModestMainWindow *win)
+{
+       GtkWidget *folder_view = NULL;
+       TnyFolderStore *parent_folder = NULL;
+       ModestTnyFolderRules rules;
+       gboolean result = FALSE;
+
+       g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
+
+       /* Get folder view */
+       folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
+                                                          MODEST_WIDGET_TYPE_FOLDER_VIEW);
+       /* If no folder view, always dimmed */
+       if (!folder_view)
+               return TRUE;
+       
+       /* Get selected folder as parent of new folder to create */
+       parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
+       if (!(parent_folder && TNY_IS_FOLDER(parent_folder)))
+               return TRUE;
+       
+       /* Check dimmed rule */ 
+       rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
+       result = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
+
+       /* free */
+       g_object_unref (parent_folder);
+
+       return result;
+}
+
+static gboolean
+_selected_folder_is_root_or_inbox (ModestMainWindow *win)
+{
+       TnyFolderType types[2];
+       gboolean result = FALSE;
+
+       g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
+
+       types[0] = TNY_FOLDER_TYPE_ROOT; 
+       types[1] = TNY_FOLDER_TYPE_INBOX; 
+
+       /* Check folder type */
+       result = _selected_folder_is_any_of_type (win, types, 2);
+
+       if (!result) {
+               GtkWidget *folder_view = NULL;
+               TnyFolderStore *parent_folder = NULL;
+               
+               folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
+                                                                  MODEST_WIDGET_TYPE_FOLDER_VIEW);
+               /* Get selected folder as parent of new folder to create */
+               parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
+               if (!parent_folder)
+                       return TRUE;
+
+               if (TNY_IS_ACCOUNT (parent_folder)) {
+                       /* If it's the local account then do not dim */
+                       if (modest_tny_account_is_virtual_local_folders (
+                                                                        TNY_ACCOUNT (parent_folder)))
+                               return FALSE;
+                       else {
+                               /* If it's the MMC root folder then dim it */
+                               if (!strcmp (tny_account_get_id (TNY_ACCOUNT (parent_folder)), MODEST_MMC_ACCOUNT_ID)) {
+                                       result = TRUE;
+                               } else {
+                                       const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
+                                       /* If it's POP then dim */
+                                       result = (modest_protocol_info_get_transport_store_protocol (proto_str) == 
+                                                 MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
+                               }
+                       }
+               }
+       }
+               
+       return result;
+}
+
+static gboolean
+_selected_folder_is_root (ModestMainWindow *win)
+{
+       TnyFolderType types[1];
+       gboolean result = FALSE;
+
+       g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
+
+       types[0] = TNY_FOLDER_TYPE_ROOT; 
+
+       /* Check folder type */
+       result = _selected_folder_is_any_of_type (win, types, 1);
+               
+       return result;
+}
+
+
+static gboolean
+_selected_folder_is_empty (ModestMainWindow *win)
+{
+       GtkWidget *folder_view = NULL;
+       TnyFolderStore *folder = NULL;
+       gboolean result = FALSE;
+
+       g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
+
+       /* Get folder view */
+       folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
+                                                          MODEST_WIDGET_TYPE_FOLDER_VIEW);
+       /* If no folder view, always dimmed */
+       if (!folder_view)
+               return TRUE;
+       
+       /* Get selected folder as parent of new folder to create */
+       folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
+       if (!(folder && TNY_IS_FOLDER(folder)))
+               return TRUE;
+       
+       /* Check folder type */
+       result = tny_folder_get_all_count (TNY_FOLDER (folder)) == 0;
+
+       /* free */
+       g_object_unref (folder);
+
+       return result;
+}
+
+static gboolean
+_selected_folder_is_any_of_type (ModestMainWindow *win,
+                                TnyFolderType types[], 
+                                guint ntypes)
+{
+       GtkWidget *folder_view = NULL;
+       TnyFolderStore *folder = NULL;
+       gboolean result = FALSE;
+
+       g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
+
+       /* Get folder view */
+       folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
+                                                          MODEST_WIDGET_TYPE_FOLDER_VIEW);
+       /* If no folder view, always dimmed */
+       if (!folder_view)
+               return TRUE;
+       
+       /* Get selected folder as parent of new folder to create */
+       folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
+       if (!(folder && TNY_IS_FOLDER(folder)))
+               return TRUE;
+       
+       /* Check folder type */
+       result = _folder_is_any_of_type (TNY_FOLDER(folder), types, ntypes);
+
+       /* free */
+       g_object_unref (folder);
+
+       return result;  
+}
+
 static gboolean
 _folder_is_any_of_type (TnyFolder *folder,
                        TnyFolderType types[], 
@@ -169,7 +684,8 @@ _folder_is_any_of_type (TnyFolder *folder,
 
 static gboolean
 _invalid_msg_selected (ModestMainWindow *win,
-                      gboolean unique) 
+                      gboolean unique,
+                      ModestDimmingRule *rule) 
 {
        GtkWidget *header_view = NULL;          
        GtkWidget *folder_view = NULL;
@@ -177,6 +693,7 @@ _invalid_msg_selected (ModestMainWindow *win,
        gboolean result = FALSE;
 
        g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
+       g_return_val_if_fail (MODEST_IS_DIMMING_RULE (rule), FALSE);
                
        /* Get header view to check selected messages */
        header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
@@ -190,14 +707,228 @@ _invalid_msg_selected (ModestMainWindow *win,
        selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
 
        /* Check dimmed rule (TODO: check focus on widgets */   
-       result = ((selected_headers == NULL) || 
-                 (GTK_WIDGET_HAS_FOCUS (folder_view)));
-       if (!result)
+       if (!result) {
+               result = ((selected_headers == NULL) || 
+                         (GTK_WIDGET_HAS_FOCUS (folder_view)));
+               if (result)
+                       modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
+       }
+       if (!result && unique) {
                result = tny_list_get_length (selected_headers) > 1;
+               if (result)
+                       modest_dimming_rule_set_notification (rule, _("mcen_ib_select_one_message"));
+       }
+
+       /* free */
+       if (selected_headers != NULL) 
+               g_object_unref (selected_headers);
+
+       return result;
+}
+
+static gboolean
+_already_opened_msg (ModestWindow *win)
+{
+       ModestWindow *window = NULL;
+       ModestWindowMgr *mgr = NULL;
+       GtkWidget *header_view = NULL;          
+       TnyList *selected_headers = NULL;
+       TnyIterator *iter = NULL;
+       TnyHeader *header = NULL;
+       gboolean result = TRUE;
+
+       g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
+               
+       /* Get header view to check selected messages */
+       header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
+                                                          MODEST_WIDGET_TYPE_HEADER_VIEW);
+
+       /* Get selected headers */
+       selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
+       if (selected_headers == NULL) 
+               return FALSE;
+
+       /* Check dimmed rule (TODO: check focus on widgets */   
+       mgr = modest_runtime_get_window_mgr ();
+       iter = tny_list_create_iterator (selected_headers);
+       while (!tny_iterator_is_done (iter) && result) {
+               header = TNY_HEADER (tny_iterator_get_current (iter));
+               window = modest_window_mgr_find_window_by_header (mgr, header);
+               result = result && (window != NULL);
+                       
+               g_object_unref (header);
+               tny_iterator_next (iter);
+       }
        
        /* free */
        if (selected_headers != NULL) 
                g_object_unref (selected_headers);
+       if (iter != NULL)
+               g_object_unref (iter);
+               
+       return result;
+}
+
+static gboolean
+_selected_msg_marked_as (ModestWindow *win, 
+                        TnyHeaderFlags mask, 
+                        gboolean opposite)
+{
+       GtkWidget *header_view = NULL;
+       TnyList *selected_headers = NULL;
+       TnyIterator *iter = NULL;
+       TnyHeader *header = NULL;
+       TnyHeaderFlags flags;
+       gboolean result = FALSE;
+
+       /* Get header view to check selected messages */
+       header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
+                                                          MODEST_WIDGET_TYPE_HEADER_VIEW);
+
+       /* Get selected headers */
+       selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
+       if (selected_headers == NULL) 
+               return TRUE;
+       
+       /* Call the function for each header */
+       iter = tny_list_create_iterator (selected_headers);
+       while (!tny_iterator_is_done (iter) && !result) {
+               header = TNY_HEADER (tny_iterator_get_current (iter));
+
+               flags = tny_header_get_flags (header);
+               if (opposite)
+                       result = (flags & mask) == 0; 
+               else
+                       result = (flags & mask) != 0; 
+
+               g_object_unref (header);
+               tny_iterator_next (iter);
+       }
+
+       /* free */
+       if (selected_headers != NULL) 
+               g_object_unref (selected_headers);
+       if (iter != NULL)
+               g_object_unref (iter);
+
+       return result;
+}
+
+static gboolean
+_msg_download_in_progress (ModestMsgViewWindow *win)
+{
+       gboolean result = FALSE;
+
+       g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW (win), FALSE);
+
+       result = modest_msg_view_window_toolbar_on_transfer_mode (win);
+
+       return result;
+}
+
+static gboolean
+_msg_download_completed (ModestMainWindow *win)
+{
+       GtkWidget *header_view = NULL;
+       TnyList *selected_headers = NULL;
+       TnyIterator *iter = NULL;
+       TnyHeader *header = NULL;
+       TnyHeaderFlags flags;
+       gboolean result = FALSE;
+
+       g_return_val_if_fail (MODEST_IS_MAIN_WINDOW (win), FALSE);
+
+
+       /* Get header view to check selected messages */
+       header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
+                                                          MODEST_WIDGET_TYPE_HEADER_VIEW);
+
+       /* Get selected headers */
+       selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
+       if (selected_headers == NULL) 
+               return TRUE;
+
+       /* Check dimmed rule  */        
+       result = TRUE;
+       iter = tny_list_create_iterator (selected_headers);
+       while (!tny_iterator_is_done (iter) && result) {
+               header = TNY_HEADER (tny_iterator_get_current (iter));
+                       
+               flags = tny_header_get_flags (header);
+               /* TODO: is this the right flag?, it seems that some
+                  headers that have been previously downloaded do not
+                  come with it */
+               result = (flags & TNY_HEADER_FLAG_CACHED);
+
+               g_object_unref (header);
+               tny_iterator_next (iter);
+       }
+
+       g_object_unref (iter);
 
        return result;
 }
+
+static gboolean
+_msg_sent_in_progress (ModestWindow *win)
+{
+/*     ModestTnySendQueue *send_queue = NULL; */
+/*     GtkWidget *header_view = NULL;  */
+/*     ModestTnyAccountStore *acc_store = NULL; */
+/*     TnyAccount *account = NULL;      */
+/*     TnyList *header_list = NULL; */
+/*     TnyIterator *iter = NULL; */
+/*     TnyHeader *header = NULL; */
+/*     const gchar *account_name = NULL; */
+       gboolean result = FALSE;
+/*     gchar *id = NULL; */
+       
+/*     g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW (win), FALSE); */
+       
+/*     /\* Get transport account *\/   */
+/*     acc_store = modest_runtime_get_account_store(); */
+/*     account_name = modest_window_get_active_account (win);   */
+/*     account = modest_tny_account_store_get_transport_account_for_open_connection (acc_store, account_name); */
+
+/*     /\* Get send queue for current ransport account *\/  */
+/*     send_queue = modest_runtime_get_send_queue (TNY_TRANSPORT_ACCOUNT(account)); */
+/*     g_return_val_if_fail (MODEST_IS_TNY_SEND_QUEUE (send_queue), FALSE); */
+
+/*     if (MODEST_IS_MAIN_WINDOW(win)) { */
+               
+/*             /\* Get header view to check selected messages *\/ */
+/*             header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win), */
+/*                                                                MODEST_WIDGET_TYPE_HEADER_VIEW); */
+               
+/*             /\* Get selected headers *\/ */
+/*             header_list = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view)); */
+
+/*             /\* Get message header *\/ */
+/*             if (!header_list) return FALSE; */
+/*             iter = tny_list_create_iterator (header_list); */
+/*             header = TNY_HEADER (tny_iterator_get_current (iter)); */
+
+/*             /\* Get message id *\/ */
+/*             id = g_strdup(tny_header_get_message_id (header));               */
+               
+/*         } else if (MODEST_IS_MSG_VIEW_WINDOW(win)) { */
+               
+/*             /\* Get message header *\/ */
+/*             header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW(win));                */
+
+/*             /\* Get message id *\/ */
+/*             id = g_strdup(tny_header_get_message_id (header));               */
+/*     } */
+
+/*     /\* Check if msg id is being processed inside send queue *\/ */
+/*     result = modest_tny_send_queue_msg_is_being_sent (send_queue, id); */
+
+/*     /\* Free *\/ */
+/*     g_free(id); */
+/*     g_object_unref (header); */
+/*     g_free(header_list); */
+/*     g_free(iter); */
+
+       return result;
+}
+