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[evolution-kolab/ek-wip-gui: 9/22] EPlugin: added infrastructure for mail/pim folder context menus

commit b3f677799074f2bfcfe570676c273491e8116355
Author: Christian Hilberg <hilberg kernelconcepts de>
Date:   Mon Feb 13 16:43:27 2012 +0100

    EPlugin: added infrastructure for mail/pim folder context menus
    
    * added context menu entries for Kolab mail folders
      and Kolab pim folders
    * added entries: "Permissions..." and "Metadata..."
    * added callback paths which end in the same functions
      for mail and PIM (one function for folder permissions,
      one for metadata)

 src/eplugin/e-kolab-plugin-ui.c |  400 ++++++++++++++++++++++++++++++++++++++-
 1 files changed, 390 insertions(+), 10 deletions(-)
---
diff --git a/src/eplugin/e-kolab-plugin-ui.c b/src/eplugin/e-kolab-plugin-ui.c
index c6ffab3..43e93a2 100644
--- a/src/eplugin/e-kolab-plugin-ui.c
+++ b/src/eplugin/e-kolab-plugin-ui.c
@@ -28,10 +28,387 @@
 
 #include <config.h>
 
+#include <glib/gi18n-lib.h>
+
+#include <libedataserverui/e-source-selector.h>
+
+#include <e-util/e-util.h>
+#include <e-util/e-dialog-utils.h>
+#include <e-util/e-plugin-ui.h>
+
+#include <shell/e-shell-sidebar.h>
+#include <shell/e-shell-view.h>
+#include <shell/e-shell-window.h>
+
+#include <mail/em-config.h>
+#include <mail/em-folder-tree.h>
+
+#include <libekolabutil/kolab-util-camel.h>
+#include <libekolabutil/kolab-util-types.h>
+
 #include "e-kolab-plugin-ui.h"
 
 /*----------------------------------------------------------------------------*/
 
+/* how many menu entries are defined; all calendar/tasks/memos/contacts
+   actions should have same count */
+#define KOLAB_ESOURCE_NUM_ENTRIES 2
+
+static void kolab_plugin_ui_action_folder_permissions_cb (GtkAction *action, EShellView *shell_view);
+static void kolab_plugin_ui_action_folder_metadata_cb (GtkAction *action, EShellView *shell_view);
+
+static GtkActionEntry mail_folder_context_entries[] = {
+	{ "kolab-mail-folder-permissions",
+	  "folder-new",
+	  N_("Permissions..."),
+	  NULL,
+	  N_("Edit Kolab mail folder permissions"),
+	  G_CALLBACK (kolab_plugin_ui_action_folder_permissions_cb) },
+
+	{ "kolab-mail-folder-metadata",
+	  "folder-new",
+	  N_("Metadata..."),
+	  NULL,
+	  N_("Edit Kolab mail folder metadata"),
+	  G_CALLBACK (kolab_plugin_ui_action_folder_metadata_cb) }
+};
+
+static GtkActionEntry calendar_context_entries[] = {
+
+	{ "kolab-calendar-folder-permissions",
+	  "folder-new",
+	  N_("Permissions..."),
+	  NULL,
+	  N_("Edit Kolab calendar permissions"),
+	  G_CALLBACK (kolab_plugin_ui_action_folder_permissions_cb) },
+
+	{ "kolab-calendar-folder-metadata",
+	  "folder-new",
+	  N_("Metadata..."),
+	  NULL,
+	  N_("Edit Kolab calendar metadata"),
+	  G_CALLBACK (kolab_plugin_ui_action_folder_metadata_cb) }
+};
+
+static GtkActionEntry memos_context_entries[] = {
+
+	{ "kolab-memos-folder-permissions",
+	  "folder-new",
+	  N_("Permissions..."),
+	  NULL,
+	  N_("Edit Kolab memos permissions"),
+	  G_CALLBACK (kolab_plugin_ui_action_folder_permissions_cb) },
+
+	{ "kolab-memos-folder-metadata",
+	  "folder-new",
+	  N_("Metadata..."),
+	  NULL,
+	  N_("Edit Kolab memos metadata"),
+	  G_CALLBACK (kolab_plugin_ui_action_folder_metadata_cb) }
+};
+
+static GtkActionEntry tasks_context_entries[] = {
+
+	{ "kolab-tasks-folder-permissions",
+	  "folder-new",
+	  N_("Permissions..."),
+	  NULL,
+	  N_("Edit Kolab tasks permissions"),
+	  G_CALLBACK (kolab_plugin_ui_action_folder_permissions_cb) },
+
+	{ "kolab-tasks-folder-metadata",
+	  "folder-new",
+	  N_("Metadata..."),
+	  NULL,
+	  N_("Edit Kolab tasks metadata"),
+	  G_CALLBACK (kolab_plugin_ui_action_folder_metadata_cb) }
+};
+
+static GtkActionEntry contacts_context_entries[] = {
+
+	{ "kolab-contacts-folder-permissions",
+	  "folder-new",
+	  N_("Permissions..."),
+	  NULL,
+	  N_("Edit Kolab contacts permissions"),
+	  G_CALLBACK (kolab_plugin_ui_action_folder_permissions_cb) },
+
+	{ "kolab-contacts-folder-metadata",
+	  "folder-new",
+	  N_("Metadata..."),
+	  NULL,
+	  N_("Edit Kolab contacts metadata"),
+	  G_CALLBACK (kolab_plugin_ui_action_folder_metadata_cb) }
+};
+
+/*----------------------------------------------------------------------------*/
+/* internal statics (non-UI) */
+
+
+/*----------------------------------------------------------------------------*/
+/* internal statics (UI) */
+
+static void
+kolab_plugin_ui_action_folder_permissions_cb (GtkAction *action,
+                                              EShellView *shell_view)
+{
+	g_assert (action != NULL);
+	g_assert (E_IS_SHELL_VIEW (shell_view));
+
+	/* FIXME implement me */
+	g_warning ("%s: FIXME implement me", __func__);
+}
+
+static void
+kolab_plugin_ui_action_folder_metadata_cb (GtkAction *action,
+                                           EShellView *shell_view)
+{
+	g_assert (action != NULL);
+	g_assert (E_IS_SHELL_VIEW (shell_view));
+
+	/* FIXME implement me */
+	g_warning ("%s: FIXME implement me", __func__);
+}
+
+static gboolean
+kolab_plugin_ui_get_selected_source (EShellView *shell_view,
+                                     ESource **selected_source)
+{
+	ESource *source;
+	gchar *uri = NULL;
+	EShellSidebar *shell_sidebar;
+	ESourceSelector *selector = NULL;
+
+	g_return_val_if_fail (shell_view != NULL, FALSE);
+	g_return_val_if_fail (selected_source == NULL || *selected_source == NULL, FALSE);
+
+	shell_sidebar = e_shell_view_get_shell_sidebar (shell_view);
+	g_return_val_if_fail (shell_sidebar != NULL, FALSE);
+
+	g_object_get (shell_sidebar, "selector", &selector, NULL);
+	g_return_val_if_fail (selector != NULL, FALSE);
+
+	source = e_source_selector_peek_primary_selection (selector);
+	uri = source ? e_source_get_uri (source) : NULL;
+	/* check whether we have a Kolab ESource selected */
+	if (uri && g_str_has_prefix (uri, KOLAB_URI_PREFIX))
+		source = g_object_ref (source);
+	else
+		source = NULL;
+
+	g_free (uri);
+	g_object_unref (selector);
+
+	if (selected_source)
+		*selected_source = source;
+	else if (source)
+		g_object_unref (source);
+
+	return source != NULL;
+}
+
+static void
+kolab_plugin_ui_enable_actions (GtkActionGroup *action_group,
+                                const GtkActionEntry *entries,
+                                guint n_entries,
+                                gboolean can_show,
+                                gboolean is_online)
+{
+	guint ii = 0;
+
+	g_return_if_fail (action_group != NULL);
+	g_return_if_fail (entries != NULL);
+
+	for (ii = 0; ii < n_entries; ii++) {
+		GtkAction *action;
+
+		action = gtk_action_group_get_action (action_group, entries[ii].name);
+		if (!action)
+			continue;
+
+		gtk_action_set_visible (action, can_show);
+		if (can_show)
+			gtk_action_set_sensitive (action, is_online);
+	}
+}
+
+static void
+kolab_plugin_ui_update_mail_entries_cb (EShellView *shell_view,
+                                        GtkActionEntry *entries)
+{
+	EShellWindow *shell_window = NULL;
+	GtkActionGroup *action_group = NULL;
+	GtkUIManager *ui_manager = NULL;
+	EShellSidebar *shell_sidebar = NULL;
+	EMFolderTree *folder_tree = NULL;
+	CamelStore *selected_store = NULL;
+	gchar *selected_path = NULL;
+	gboolean is_kolab_account_node = FALSE;
+	gboolean is_kolab_folder_node = FALSE;
+	gboolean is_online = FALSE;
+
+	g_assert (E_IS_SHELL_VIEW (shell_view));
+	g_assert (entries != NULL);
+	
+	shell_sidebar = e_shell_view_get_shell_sidebar (shell_view);
+	g_object_get (shell_sidebar, "folder-tree", &folder_tree, NULL);
+	if (em_folder_tree_get_selected (folder_tree, &selected_store, &selected_path) ||
+	    em_folder_tree_store_root_selected (folder_tree, &selected_store)) {
+		if (selected_store) {
+			CamelProvider *provider = camel_service_get_provider (CAMEL_SERVICE (selected_store));
+
+			if (provider && g_ascii_strcasecmp (provider->protocol, KOLAB_CAMEL_PROVIDER_PROTOCOL) == 0) {
+				is_kolab_account_node = !selected_path || !*selected_path;
+				is_kolab_folder_node = !is_kolab_account_node;
+			}
+
+			g_object_unref (selected_store);
+		}
+	}
+	g_object_unref (folder_tree);
+
+	g_free (selected_path);
+
+	shell_window = e_shell_view_get_shell_window (shell_view);
+	ui_manager = e_shell_window_get_ui_manager (shell_window);
+	action_group = e_lookup_action_group (ui_manager, "mail");
+
+	if (is_kolab_account_node || is_kolab_folder_node) {
+		EShellBackend *backend = NULL;
+		CamelSession *session = NULL;
+
+		backend = e_shell_view_get_shell_backend (shell_view);
+		g_object_get (G_OBJECT (backend), "session", &session, NULL);
+
+		is_online = session && camel_session_get_online (session);
+
+		if (session)
+			g_object_unref (session);
+	}
+
+	kolab_plugin_ui_enable_actions (action_group,
+	                                mail_folder_context_entries,
+	                                G_N_ELEMENTS (mail_folder_context_entries),
+	                                is_kolab_folder_node,
+	                                is_online);
+}
+
+static void
+kolab_plugin_ui_update_source_entries_cb (EShellView *shell_view,
+                                          GtkActionEntry *entries)
+{
+	GtkActionGroup *action_group = NULL;
+	EShell *shell = NULL;
+	EShellWindow *shell_window = NULL;
+	const gchar *group = NULL;
+	gboolean is_kolab_source = FALSE;
+	gboolean is_online = FALSE;
+
+	g_return_if_fail (E_IS_SHELL_VIEW (shell_view));
+	g_return_if_fail (entries != NULL);
+
+	if (strstr (entries->name, "calendar") != NULL)
+		group = "tasks";
+	else if (strstr (entries->name, "tasks") != NULL)
+		group = "tasks";
+	else if (strstr (entries->name, "memos") != NULL)
+		group = "memos";
+	else if (strstr (entries->name, "contacts") != NULL)
+		group = "contacts";
+	else
+		g_return_if_reached ();
+
+	is_kolab_source = kolab_plugin_ui_get_selected_source (shell_view, NULL);
+	shell_window = e_shell_view_get_shell_window (shell_view);
+	shell = e_shell_window_get_shell (shell_window);
+
+	/* this is a shortcut. we should actually query
+	 * the online state from the backend
+	 */
+	is_online = shell && e_shell_get_online (shell);
+	action_group = e_shell_window_get_action_group (shell_window, group);
+
+	kolab_plugin_ui_enable_actions (action_group,
+	                                entries,
+	                                KOLAB_ESOURCE_NUM_ENTRIES,
+	                                is_kolab_source,
+	                                is_online);
+
+	g_object_unref (action_group);
+}
+
+static void
+kolab_plugin_ui_setup_mail_actions (EShellView *shell_view)
+{
+	EShellWindow *shell_window;
+	GtkActionGroup *action_group;
+
+	g_assert (E_IS_SHELL_VIEW (shell_view));
+
+	shell_window = e_shell_view_get_shell_window (shell_view);
+	action_group = e_shell_window_get_action_group (shell_window, "mail");
+
+	/* Add actions to the "mail" action group. */
+	e_action_group_add_actions_localized (action_group,
+	                                      GETTEXT_PACKAGE,
+	                                      mail_folder_context_entries,
+	                                      G_N_ELEMENTS (mail_folder_context_entries),
+	                                      shell_view);
+
+	/* Decide whether we want this option to be visible or not */
+	g_signal_connect (shell_view,
+	                  "update-actions",
+			  G_CALLBACK (kolab_plugin_ui_update_mail_entries_cb),
+			  shell_view);
+
+	g_object_unref (action_group);
+}
+
+static void
+kolab_plugin_ui_setup_source_actions (EShellView *shell_view,
+                                      GtkActionEntry *entries,
+                                      guint n_entries)
+{
+	EShellWindow *shell_window;
+	const gchar *group;
+
+	g_assert (E_IS_SHELL_VIEW (shell_view));
+	g_return_if_fail (entries != NULL);
+	g_return_if_fail (n_entries > 0);
+	g_return_if_fail (n_entries == KOLAB_ESOURCE_NUM_ENTRIES);
+
+	if (strstr (entries->name, "calendar"))
+		group = "calendar";
+	else if (strstr (entries->name, "tasks"))
+		group = "tasks";
+	else if (strstr (entries->name, "memos"))
+		group = "memos";
+	else if (strstr (entries->name, "contacts"))
+		group = "contacts";
+	else
+		g_return_if_reached ();
+
+	shell_window = e_shell_view_get_shell_window (shell_view);
+
+	e_action_group_add_actions_localized (e_shell_window_get_action_group (shell_window, group),
+	                                      GETTEXT_PACKAGE,
+	                                      entries,
+	                                      KOLAB_ESOURCE_NUM_ENTRIES,
+	                                      shell_view);
+
+	g_signal_connect (shell_view,
+	                  "update-actions",
+	                  G_CALLBACK (kolab_plugin_ui_update_source_entries_cb),
+	                  entries);
+}
+
+/*----------------------------------------------------------------------------*/
+/* API functions (non-UI) */
+
+
+/*----------------------------------------------------------------------------*/
+/* API functions (UI) */
+
 gboolean
 e_kolab_plugin_ui_init_mail (GtkUIManager *ui_manager,
                              EShellView *shell_view)
@@ -39,8 +416,7 @@ e_kolab_plugin_ui_init_mail (GtkUIManager *ui_manager,
 	g_assert (GTK_IS_UI_MANAGER (ui_manager));
 	g_assert (E_IS_SHELL_VIEW (shell_view));
 
-	g_debug ("%s: called.", __func__);
-
+	kolab_plugin_ui_setup_mail_actions (shell_view);
 	return TRUE;
 }
 
@@ -51,8 +427,9 @@ e_kolab_plugin_ui_init_calendar (GtkUIManager *ui_manager,
 	g_assert (GTK_IS_UI_MANAGER (ui_manager));
 	g_assert (E_IS_SHELL_VIEW (shell_view));
 
-	g_debug ("%s: called.", __func__);
-
+	kolab_plugin_ui_setup_source_actions (shell_view,
+	                                      calendar_context_entries,
+	                                      G_N_ELEMENTS (calendar_context_entries));
 	return TRUE;
 }
 
@@ -63,8 +440,9 @@ e_kolab_plugin_ui_init_tasks (GtkUIManager *ui_manager,
 	g_assert (GTK_IS_UI_MANAGER (ui_manager));
 	g_assert (E_IS_SHELL_VIEW (shell_view));
 
-	g_debug ("%s: called.", __func__);
-
+	kolab_plugin_ui_setup_source_actions (shell_view,
+	                                      tasks_context_entries,
+	                                      G_N_ELEMENTS (tasks_context_entries));
 	return TRUE;
 }
 
@@ -75,8 +453,9 @@ e_kolab_plugin_ui_init_memos (GtkUIManager *ui_manager,
 	g_assert (GTK_IS_UI_MANAGER (ui_manager));
 	g_assert (E_IS_SHELL_VIEW (shell_view));
 
-	g_debug ("%s: called.", __func__);
-
+	kolab_plugin_ui_setup_source_actions (shell_view,
+	                                      memos_context_entries,
+	                                      G_N_ELEMENTS (memos_context_entries));
 	return TRUE;
 }
 
@@ -87,8 +466,9 @@ e_kolab_plugin_ui_init_contacts (GtkUIManager *ui_manager,
 	g_assert (GTK_IS_UI_MANAGER (ui_manager));
 	g_assert (E_IS_SHELL_VIEW (shell_view));
 
-	g_debug ("%s: called.", __func__);
-
+	kolab_plugin_ui_setup_source_actions (shell_view,
+	                                      contacts_context_entries,
+	                                      G_N_ELEMENTS (contacts_context_entries));
 	return TRUE;
 }
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