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authorFederico Mena Quintero <federico@ximian.com>2001-04-16 10:50:55 +0800
committerFederico Mena Quintero <federico@src.gnome.org>2001-04-16 10:50:55 +0800
commit819a11d2fc2b50868787edd3760f902020b59a99 (patch)
tree6f36ba0b8be6f801d802d4b9d848249136ea0a7a /calendar/pcs
parente1a2f6999ae81f87585f84bbe25a609bf52b9d6b (diff)
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Create the ESearchBar thingy. (search_bar_query_changed_cb): Build the
2001-04-15 Federico Mena Quintero <federico@ximian.com> * gui/gnome-cal.c (setup_widgets): Create the ESearchBar thingy. (search_bar_query_changed_cb): Build the different queries based on the type and string. * pcs/query.c (backend_obj_updated_cb): Ref the query while we are notifying the listener so that it will not disappear from under us. (backend_obj_removed_cb): Likewise. (process_component_cb): Likewise. (func_contains): New function to match text fields. (matches_comment): New function to match comment lists. (matches_description): New function to match description lists. (matches_summary): New function to match summaries. (matches_any): New function to match any text field. (func_has_categories): New function to match categories. svn path=/trunk/; revision=9340
Diffstat (limited to 'calendar/pcs')
-rw-r--r--calendar/pcs/query.c279
1 files changed, 272 insertions, 7 deletions
diff --git a/calendar/pcs/query.c b/calendar/pcs/query.c
index 474a2eb971..48e77d216a 100644
--- a/calendar/pcs/query.c
+++ b/calendar/pcs/query.c
@@ -28,6 +28,7 @@
#include <libgnome/gnome-defs.h>
#include <libgnome/gnome-i18n.h>
#include <gtk/gtksignal.h>
+#include <gal/widgets/e-unicode.h>
#include <e-util/e-sexp.h>
#include <cal-util/cal-recur.h>
#include <cal-util/timeutil.h>
@@ -497,6 +498,240 @@ func_occur_in_time_range (ESExp *esexp, int argc, ESExpResult **argv, void *data
return result;
}
+/* Returns whether a list of CalComponentText items matches the specified string */
+static gboolean
+matches_text_list (GSList *text_list, const char *str)
+{
+ GSList *l;
+ gboolean matches;
+
+ matches = FALSE;
+
+ for (l = text_list; l; l = l->next) {
+ CalComponentText *text;
+
+ text = l->data;
+ g_assert (text->value != NULL);
+
+ if (e_utf8_strstrcase (text->value, str) != NULL) {
+ matches = TRUE;
+ break;
+ }
+ }
+
+ return matches;
+}
+
+/* Returns whether the comments in a component matches the specified string */
+static gboolean
+matches_comment (CalComponent *comp, const char *str)
+{
+ GSList *list;
+ gboolean matches;
+
+ cal_component_get_comment_list (comp, &list);
+ matches = matches_text_list (list, str);
+ cal_component_free_text_list (list);
+
+ return matches;
+}
+
+/* Returns whether the description in a component matches the specified string */
+static gboolean
+matches_description (CalComponent *comp, const char *str)
+{
+ GSList *list;
+ gboolean matches;
+
+ cal_component_get_description_list (comp, &list);
+ matches = matches_text_list (list, str);
+ cal_component_free_text_list (list);
+
+ return matches;
+}
+
+/* Returns whether the summary in a component matches the specified string */
+static gboolean
+matches_summary (CalComponent *comp, const char *str)
+{
+ CalComponentText text;
+
+ cal_component_get_summary (comp, &text);
+
+ if (!text.value)
+ return FALSE;
+
+ return e_utf8_strstrcase (text.value, str) != NULL;
+}
+
+/* Returns whether any text field in a component matches the specified string */
+static gboolean
+matches_any (CalComponent *comp, const char *str)
+{
+ /* As an optimization, and to make life easier for the individual
+ * predicate functions, see if we are looking for the empty string right
+ * away.
+ */
+ if (strlen (str) == 0)
+ return TRUE;
+
+ return (matches_comment (comp, str)
+ || matches_description (comp, str)
+ || matches_summary (comp, str));
+}
+
+/* (contains? FIELD STR)
+ *
+ * FIELD - string, name of field to match (any, comment, description, summary)
+ * STR - string, match string
+ *
+ * Returns a boolean indicating whether the specified field contains the
+ * specified string.
+ */
+static ESExpResult *
+func_contains (ESExp *esexp, int argc, ESExpResult **argv, void *data)
+{
+ Query *query;
+ QueryPrivate *priv;
+ CalComponent *comp;
+ const char *field;
+ const char *str;
+ gboolean matches;
+ ESExpResult *result;
+
+ query = QUERY (data);
+ priv = query->priv;
+
+ g_assert (priv->next_comp != NULL);
+ comp = priv->next_comp;
+
+ /* Check argument types */
+
+ if (argc != 2) {
+ e_sexp_fatal_error (esexp, _("contains? expects 2 arguments"));
+ return NULL;
+ }
+
+ if (argv[0]->type != ESEXP_RES_STRING) {
+ e_sexp_fatal_error (esexp, _("contains? expects argument 1 "
+ "to be a string"));
+ return NULL;
+ }
+ field = argv[0]->value.string;
+
+ if (argv[1]->type != ESEXP_RES_STRING) {
+ e_sexp_fatal_error (esexp, _("contains? expects argument 2 "
+ "to be a string"));
+ return NULL;
+ }
+ str = argv[1]->value.string;
+
+ /* See if it matches */
+
+ if (strcmp (field, "any") == 0)
+ matches = matches_any (comp, str);
+ else if (strcmp (field, "comment") == 0)
+ matches = matches_comment (comp, str);
+ else if (strcmp (field, "description") == 0)
+ matches = matches_description (comp, str);
+ else if (strcmp (field, "summary") == 0)
+ matches = matches_summary (comp, str);
+ else {
+ e_sexp_fatal_error (esexp, _("contains? expects argument 1 to "
+ "be one of \"any\", \"summary\", \"description\""));
+ return NULL;
+ }
+
+ result = e_sexp_result_new (esexp, ESEXP_RES_BOOL);
+ result->value.bool = matches;
+
+ return result;
+}
+
+/* (has-categories? STR+)
+ *
+ * STR - At least one string specifying a category
+ *
+ * Returns a boolean indicating whether the component has all the specified
+ * categories.
+ */
+static ESExpResult *
+func_has_categories (ESExp *esexp, int argc, ESExpResult **argv, void *data)
+{
+ Query *query;
+ QueryPrivate *priv;
+ CalComponent *comp;
+ int i;
+ GSList *categories;
+ gboolean matches;
+ ESExpResult *result;
+
+ query = QUERY (data);
+ priv = query->priv;
+
+ g_assert (priv->next_comp != NULL);
+ comp = priv->next_comp;
+
+ /* Check argument types */
+
+ if (argc < 1) {
+ e_sexp_fatal_error (esexp, _("has-categories? expects at least 1 argument"));
+ return NULL;
+ }
+
+ for (i = 0; i < argc; i++)
+ if (argv[i]->type != ESEXP_RES_STRING) {
+ e_sexp_fatal_error (esexp, _("has-categories? expects all arguments "
+ "to be strings"));
+ return NULL;
+ }
+
+ /* Search categories */
+
+ cal_component_get_categories_list (comp, &categories);
+ if (!categories) {
+ result = e_sexp_result_new (esexp, ESEXP_RES_BOOL);
+ result->value.bool = FALSE;
+
+ return result;
+ }
+
+ matches = TRUE;
+
+ for (i = 0; i < argc; i++) {
+ const char *sought;
+ GSList *l;
+ gboolean has_category;
+
+ sought = argv[i]->value.string;
+
+ has_category = FALSE;
+
+ for (l = categories; l; l = l->next) {
+ const char *category;
+
+ category = l->data;
+
+ if (strcmp (category, sought) == 0) {
+ has_category = TRUE;
+ break;
+ }
+ }
+
+ if (!has_category) {
+ matches = FALSE;
+ break;
+ }
+ }
+
+ cal_component_free_categories_list (categories);
+
+ result = e_sexp_result_new (esexp, ESEXP_RES_BOOL);
+ result->value.bool = matches;
+
+ return result;
+}
+
/* Adds a component to our the UIDs hash table and notifies the client */
@@ -612,7 +847,9 @@ static struct {
/* Component-related functions */
{ "get-vtype", func_get_vtype },
- { "occur-in-time-range?", func_occur_in_time_range }
+ { "occur-in-time-range?", func_occur_in_time_range },
+ { "contains?", func_contains },
+ { "has-categories?", func_has_categories }
};
/* Initializes a sexp by interning our own symbols */
@@ -681,7 +918,7 @@ match_component (Query *query, const char *uid,
&ev);
if (ev._major != CORBA_NO_EXCEPTION)
- g_message ("process_component_cb(): Could not notify the listener of "
+ g_message ("match_component(): Could not notify the listener of "
"an evaluation error");
CORBA_exception_free (&ev);
@@ -696,7 +933,7 @@ match_component (Query *query, const char *uid,
&ev);
if (ev._major != CORBA_NO_EXCEPTION)
- g_message ("process_component_cb(): Could not notify the listener of "
+ g_message ("match_component(): Could not notify the listener of "
"an unexpected result value type when evaluating the "
"search expression");
@@ -730,7 +967,6 @@ process_component_cb (gpointer data)
if (!priv->pending_uids) {
g_assert (priv->n_pending == 0);
- g_source_remove (priv->idle_id);
priv->idle_id = 0;
return FALSE;
}
@@ -751,11 +987,15 @@ process_component_cb (gpointer data)
g_list_free_1 (l);
+ bonobo_object_ref (BONOBO_OBJECT (query));
+
match_component (query, uid,
TRUE,
priv->pending_total - priv->n_pending,
priv->pending_total);
+ bonobo_object_unref (BONOBO_OBJECT (query));
+
g_free (uid);
return TRUE;
@@ -841,6 +1081,7 @@ backend_opened_cb (CalBackend *backend, CalBackendOpenStatus status, gpointer da
if (status == CAL_BACKEND_OPEN_SUCCESS) {
g_assert (cal_backend_is_loaded (backend));
+ g_assert (priv->idle_id == 0);
priv->idle_id = g_idle_add (start_query_cb, query);
}
@@ -854,8 +1095,12 @@ backend_obj_updated_cb (CalBackend *backend, const char *uid, gpointer data)
query = QUERY (data);
+ bonobo_object_ref (BONOBO_OBJECT (query));
+
match_component (query, uid, FALSE, 0, 0);
remove_from_pending (query, uid);
+
+ bonobo_object_unref (BONOBO_OBJECT (query));
}
/* Callback used when a component is removed from the backend */
@@ -868,8 +1113,12 @@ backend_obj_removed_cb (CalBackend *backend, const char *uid, gpointer data)
query = QUERY (data);
priv = query->priv;
+ bonobo_object_ref (BONOBO_OBJECT (query));
+
remove_component (query, uid);
remove_from_pending (query, uid);
+
+ bonobo_object_unref (BONOBO_OBJECT (query));
}
/**
@@ -928,9 +1177,10 @@ query_construct (Query *query,
/* Queue the query to be started asynchronously */
- if (cal_backend_is_loaded (priv->backend))
+ if (cal_backend_is_loaded (priv->backend)) {
+ g_assert (priv->idle_id == 0);
priv->idle_id = g_idle_add (start_query_cb, query);
- else
+ } else
gtk_signal_connect (GTK_OBJECT (priv->backend), "opened",
GTK_SIGNAL_FUNC (backend_opened_cb),
query);
@@ -938,6 +1188,16 @@ query_construct (Query *query,
return query;
}
+/**
+ * query_new:
+ * @backend: Calendar backend that the query object will monitor.
+ * @ql: Listener for query results.
+ * @sexp: Sexp that defines the query.
+ *
+ * Creates a new query engine object that monitors a calendar backend.
+ *
+ * Return value: A newly-created query object, or NULL on failure.
+ **/
Query *
query_new (CalBackend *backend,
GNOME_Evolution_Calendar_QueryListener ql,
@@ -946,5 +1206,10 @@ query_new (CalBackend *backend,
Query *query;
query = QUERY (gtk_type_new (QUERY_TYPE));
- return query_construct (query, backend, ql, sexp);
+ if (!query_construct (query, backend, ql, sexp)) {
+ bonobo_object_unref (BONOBO_OBJECT (query));
+ return NULL;
+ }
+
+ return query;
}