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-rw-r--r--calendar/ChangeLog23
-rw-r--r--calendar/cal-util/cal-component.c384
-rw-r--r--calendar/cal-util/cal-component.h10
3 files changed, 326 insertions, 91 deletions
diff --git a/calendar/ChangeLog b/calendar/ChangeLog
index 06518ca29f..94d0e17080 100644
--- a/calendar/ChangeLog
+++ b/calendar/ChangeLog
@@ -1,3 +1,26 @@
+2000-06-30 Federico Mena Quintero <federico@helixcode.com>
+
+ * cal-util/cal-component.c: Change of plans. We use an
+ icalcomponent from libical as our core representation so that we
+ can preserve extension fields and fields that we don't (yet)
+ support. CalComponent is just a wrapper with a nice API that
+ provides non-iterative, random access to the ical's fields.
+ (cal_component_destroy): Free the thing correctly.
+ (cal_component_get_vtype): Re-implement in terms of icalcomponent.
+ (cal_component_set_icalcomponent): New function to set the
+ CalComponent's data from an existing icalcomponent.
+ (cal_component_get_icalcomponent): New function.
+ (cal_component_set_new_vtype): New convenience function to create
+ an empty component.
+ (scan_icalcomponent): Core scanning function.
+ (scan_property): Another core scanning function.
+ (cal_component_get_uid): Use the property directly.
+ (cal_component_get_summary): Ditto. Handle the altrep parameter
+ as well.
+ (cal_component_set_summary): Ditto. Feel the pain, motherfucker.
+ It is ridiculous how much code this involves.
+ (scan_summary): Ditto.
+
2000-06-29 Ettore Perazzoli <ettore@helixcode.com>
* gui/component-factory.c (owner_set_cb): Get an
diff --git a/calendar/cal-util/cal-component.c b/calendar/cal-util/cal-component.c
index bb2fd1a50e..3370b8f9ea 100644
--- a/calendar/cal-util/cal-component.c
+++ b/calendar/cal-util/cal-component.c
@@ -28,14 +28,17 @@
/* Private part of the CalComponent structure */
typedef struct {
- /* Type of this component */
- CalComponentVType type;
+ /* The icalcomponent we wrap */
+ icalcomponent *icalcomp;
- /* Summary string, optional */
- char *summary;
+ /* Properties */
- /* Unique identifier, MUST be present */
- char *uid;
+ icalproperty *uid_prop;
+
+ struct {
+ icalproperty *prop;
+ icalparameter *altrep_param;
+ } summary;
} CalComponentPrivate;
@@ -102,7 +105,28 @@ cal_component_init (CalComponent *comp)
priv = g_new0 (CalComponentPrivate, 1);
comp->priv = priv;
- priv->uid = cal_component_gen_uid ();
+ priv->uid_prop = cal_component_gen_uid ();
+}
+
+/* Frees the internal icalcomponent only if it does not have a parent. If it
+ * does, it means we don't own it and we shouldn't free it.
+ */
+static void
+free_icalcomponent (CalComponent *comp)
+{
+ CalComponentPrivate *priv;
+
+ priv = comp->priv;
+
+ if (!priv->icalcomp)
+ return;
+
+ /* FIXME: remove the mappings! */
+
+ if (icalcomponent_get_parent (priv->icalcomp) != NULL)
+ icalcomponent_free (priv->icalcomp);
+
+ priv->icalcomp = NULL;
}
/* Destroy handler for the calendar component object */
@@ -118,10 +142,7 @@ cal_component_destroy (GtkObject *object)
comp = CAL_COMPONENT (object);
priv = comp->priv;
- if (priv->uid) {
- g_free (priv->uid);
- priv->uid = NULL;
- }
+ free_icalcomponent (comp);
g_free (priv);
comp->priv = NULL;
@@ -172,9 +193,9 @@ cal_component_gen_uid (void)
* cal_component_new:
* @void:
*
- * Creates a new empty calendar component object whose only set field is the
- * unique identifier. You should set the type of this component as soon as
- * possible by using cal_component_set_vtype().
+ * Creates a new empty calendar component object. You should set it from an
+ * #icalcomponent structure by using cal_component_set_icalcomponent() or with a
+ * new empty component type by using cal_component_set_new_vtype().
*
* Return value: A newly-created calendar component object.
**/
@@ -184,119 +205,256 @@ cal_component_new (void)
return CAL_COMPONENT (gtk_type_new (CAL_COMPONENT_TYPE));
}
-/* Parses a property and stores it in the calendar component */
+/* Scans the summary property */
static void
-load_property (CalComponent *comp, icalproperty *prop)
+scan_summary (CalComponent *comp, icalproperty *prop)
{
+ CalComponentPrivate *priv;
+ icalparameter *param;
+
+ priv = comp->priv;
+
+ priv->summary.prop = prop;
+
+ for (param = icalproperty_get_first_parameter (prop, ICAL_ANY_PARAMETER);
+ param;
+ param = icalproperty_get_next_parameter (prop, ICAL_ANY_PARAMETER)) {
+ icalparameter_kind kind;
+
+ kind = icalparameter_isa (param);
+
+ switch (kind) {
+ case ICAL_ALTREP_PARAMETER:
+ priv->summary.altrep_param = param;
+ break;
+
+ default:
+ break;
+ }
+ }
+}
+
+/* Scans an icalproperty and adds its mapping to the component */
+static void
+scan_property (CalComponent *comp, icalproperty *prop)
+{
+ CalComponentPrivate *priv;
icalproperty_kind kind;
- kind = icalproperty_isa (prop);
+ priv = comp->priv;
+
+ switch (kind) {
+ case ICAL_SUMMARY_PROPERTY:
+ scan_summary (comp, prop);
+
+ case ICAL_UID_PROPERTY:
+ priv->uid_prop = prop;
+
+ default:
+ break;
+ }
+}
+
+/* Scans an icalcomponent for its properties so that we can provide
+ * random-access to them.
+ */
+static void
+scan_icalcomponent (CalComponent *comp)
+{
+ CalComponentPrivate *priv;
+ icalproperty *prop;
+
+ priv = comp->priv;
+
+ g_assert (priv->icalcomp != NULL);
+
+ for (prop = icalcomponent_get_first_property (priv->icalcomp, ICAL_ANY_PROPERTY);
+ prop;
+ prop = icalcomponent_get_next_property (priv->icalcomp, ICAL_ANY_PROPERTY))
+ scan_property (comp, prop);
- /* FIXME */
+ /* FIXME: parse ALARM subcomponents */
}
/**
- * cal_component_new_from_icalcomponent:
- * @ical: An #icalcomponent structure with the component to parse.
- *
- * Creates a new calendar component object from an #icalcomponent from libical.
- * This function only deals with VEVENT, VTODO, VJOURNAL, VFREEBUSY, AND
- * VTIMEZONE components.
+ * cal_component_set_new_vtype:
+ * @comp: A calendar component object.
+ * @type: Type of calendar component to create.
*
- * Return value: A newly-created calendar component object.
+ * Clears any existing component data from a calendar component object and
+ * creates a new #icalcomponent of the specified type for it. The only property
+ * that will be set in the new component will be its unique identifier.
**/
-CalComponent *
-cal_component_new_from_icalcomponent (icalcomponent *ical)
+void
+cal_component_set_new_vtype (CalComponent *comp, CalComponentVType type)
{
- CalComponent *comp;
+ CalComponentPrivate *priv;
+ icalcomponent *icalcomp;
icalcomponent_kind kind;
- CalComponentVType type;
+ char *uid;
icalproperty *prop;
- g_return_val_if_fail (ical != NULL, NULL);
+ g_return_if_fail (comp != NULL);
+ g_return_if_fail (IS_CAL_COMPONENT (comp));
- kind = icalcomponent_isa (ical);
+ priv = comp->priv;
- switch (kind) {
- case ICAL_VEVENT_COMPONENT:
- type = CAL_COMPONENT_EVENT;
+ free_icalcomponent (comp);
+
+ if (type == CAL_COMPONENT_NO_TYPE)
+ return;
+
+ /* Figure out the kind */
+
+ switch (type) {
+ case CAL_COMPONENT_EVENT:
+ kind = ICAL_VEVENT_COMPONENT;
break;
- case ICAL_VTODO_COMPONENT:
- type = CAL_COMPONENT_TODO;
+ case CAL_COMPONENT_TODO:
+ kind = ICAL_VTODO_COMPONENT;
break;
- case ICAL_VJOURNAL_COMPONENT:
- type = CAL_COMPONENT_JOURNAL;
+ case CAL_COMPONENT_JOURNAL:
+ kind = ICAL_VJOURNAL_COMPONENT;
break;
- case ICAL_VFREEBUSY_COMPONENT:
- type = CAL_COMPONENT_FREEBUSY;
+ case CAL_COMPONENT_FREEBUSY:
+ kind = ICAL_VFREEBUSY_COMPONENT;
break;
- case ICAL_VTIMEZONE_COMPONENT:
- type = CAL_COMPONENT_TIMEZONE;
+ case CAL_COMPONENT_TIMEZONE:
+ kind = ICAL_VTIMEZONE_COMPONENT;
break;
default:
- g_message ("cal_component_new_from_icalcomponent(): Unsupported component type %d",
- kind);
- return NULL;
+ g_assert_not_reached ();
+ kind = ICAL_NO_COMPONENT;
}
- comp = cal_component_new ();
- cal_component_set_vtype (comp, type);
+ /* Create an UID */
- for (prop = icalcomponent_get_first_property (ical, ICAL_ANY_PROPERTY);
- prop;
- prop = icalcomponent_get_next_property (ical, ICAL_ANY_PROPERTY))
- load_property (comp, prop);
+ icalcomp = icalcomponent_new (kind);
+ if (!icalcomp) {
+ g_message ("cal_component_set_new_vtype(): Could not create the icalcomponent!");
+ return;
+ }
- /* FIXME: parse ALARM subcomponents */
+ uid = cal_component_gen_uid ();
+ prop = icalproperty_new_uid (uid);
+ g_free (uid);
- return comp;
+ if (!prop) {
+ icalcomponent_free (icalcomp);
+ g_message ("cal_component_set_new_vtype(): Could not create the UID property!");
+ return;
+ }
+
+ icalcomponent_add_property (icalcomp, prop);
+
+ /* Scan the component to build our mapping table */
+
+ priv->icalcomp = icalcomp;
+ scan_icalcomponent (comp);
}
/**
- * cal_component_get_vtype:
+ * cal_component_set_icalcomponent:
* @comp: A calendar component object.
+ * @icalcomp: An #icalcomponent.
*
- * Queries the type of a calendar component object.
+ * Sets the contents of a calendar component object from an #icalcomponent
+ * structure. If the @comp already had an #icalcomponent set into it, it will
+ * will be freed automatically if the #icalcomponent does not have a parent
+ * component itself.
+ **/
+void
+cal_component_set_icalcomponent (CalComponent *comp, icalcomponent *icalcomp)
+{
+ CalComponentPrivate *priv;
+
+ g_return_if_fail (comp != NULL);
+ g_return_if_fail (IS_CAL_COMPONENT (comp));
+
+ priv = comp->priv;
+
+ if (priv->icalcomp == icalcomp)
+ return;
+
+ free_icalcomponent (comp);
+
+ priv->icalcomp = icalcomp;
+
+ if (priv->icalcomp)
+ scan_icalcomponent (comp);
+}
+
+/**
+ * cal_component_get_icalcomponent:
+ * @comp: A calendar component object.
*
- * Return value: The type of the component, as defined by RFC 2445.
+ * Queries the #icalcomponent structure that a calendar component object is
+ * wrapping.
+ *
+ * Return value: An #icalcomponent structure, or NULL if the @comp has no
+ * #icalcomponent set to it.
**/
-CalComponentVType
-cal_component_get_vtype (CalComponent *comp)
+icalcomponent *
+cal_component_get_icalcomponent (CalComponent *comp)
{
CalComponentPrivate *priv;
- g_return_val_if_fail (comp != NULL, CAL_COMPONENT_NO_TYPE);
- g_return_val_if_fail (IS_CAL_COMPONENT (comp), CAL_COMPONENT_NO_TYPE);
+ g_return_val_if_fail (comp != NULL, NULL);
+ g_return_val_if_fail (IS_CAL_COMPONENT (comp), NULL);
priv = comp->priv;
- return priv->type;
+ return priv->icalcomp;
}
/**
- * cal_component_set_vtype:
+ * cal_component_get_vtype:
* @comp: A calendar component object.
- * @type: Type of the component, as defined by RFC 2445.
*
- * Sets the type of a calendar component object. This function should be used
- * as soon as possible after creating a new calendar component so that its type
- * can be known to the rest of the program.
+ * Queries the type of a calendar component object.
+ *
+ * Return value: The type of the component, as defined by RFC 2445.
**/
-void
-cal_component_set_vtype (CalComponent *comp, CalComponentVType type)
+CalComponentVType
+cal_component_get_vtype (CalComponent *comp)
{
CalComponentPrivate *priv;
+ icalcomponent_kind kind;
- g_return_if_fail (comp != NULL);
- g_return_if_fail (IS_CAL_COMPONENT (comp));
- g_return_if_fail (type != CAL_COMPONENT_NO_TYPE);
+ g_return_val_if_fail (comp != NULL, CAL_COMPONENT_NO_TYPE);
+ g_return_val_if_fail (IS_CAL_COMPONENT (comp), CAL_COMPONENT_NO_TYPE);
priv = comp->priv;
- priv->type = type;
+
+ if (!priv->icalcomp)
+ return CAL_COMPONENT_NO_TYPE;
+
+ kind = icalcomponent_isa (priv->icalcomp);
+ switch (kind) {
+ case ICAL_VEVENT_COMPONENT:
+ return CAL_COMPONENT_EVENT;
+
+ case ICAL_VTODO_COMPONENT:
+ return CAL_COMPONENT_TODO;
+
+ case ICAL_VJOURNAL_COMPONENT:
+ return CAL_COMPONENT_JOURNAL;
+
+ case ICAL_VFREEBUSY_COMPONENT:
+ return CAL_COMPONENT_FREEBUSY;
+
+ case ICAL_VTIMEZONE_COMPONENT:
+ return CAL_COMPONENT_TIMEZONE;
+
+ default:
+ /* We should have been loaded with a supported type! */
+ g_assert_not_reached ();
+ return CAL_COMPONENT_NO_TYPE;
+ }
}
/**
@@ -316,7 +474,11 @@ cal_component_get_uid (CalComponent *comp)
g_return_val_if_fail (IS_CAL_COMPONENT (comp), NULL);
priv = comp->priv;
- return priv->uid;
+
+ /* This MUST exist, since we ensured that it did */
+ g_assert (priv->uid_prop != NULL);
+
+ return icalproperty_get_uid (priv->uid_prop);
}
/**
@@ -336,30 +498,44 @@ cal_component_set_uid (CalComponent *comp, const char *uid)
g_return_if_fail (uid != NULL);
priv = comp->priv;
- g_assert (priv->uid != NULL);
- g_free (priv->uid);
- priv->uid = g_strdup (uid);
+ /* This MUST exist, since we ensured that it did */
+ g_assert (priv->uid_prop != NULL);
+
+ icalproperty_set_uid (priv->uid_prop, (char *) uid);
}
/**
* cal_component_get_summary:
* @comp: A calendar component object.
+ * @summary: Return value for the summary string.
+ * @altrep: Return value for the alternate representation string.
*
* Queries the summary of a calendar component object.
- *
- * Return value: Summary string.
**/
-const char *
-cal_component_get_summary (CalComponent *comp)
+void
+cal_component_get_summary (CalComponent *comp, const char **summary, const char **altrep)
{
CalComponentPrivate *priv;
- g_return_val_if_fail (comp != NULL, NULL);
- g_return_val_if_fail (IS_CAL_COMPONENT (comp), NULL);
+ g_return_if_fail (comp != NULL);
+ g_return_if_fail (IS_CAL_COMPONENT (comp));
priv = comp->priv;
- return priv->summary;
+
+ if (summary) {
+ if (priv->summary.prop)
+ *summary = icalproperty_get_summary (priv->summary.prop);
+ else
+ *summary = NULL;
+ }
+
+ if (altrep) {
+ if (priv->summary.altrep_param)
+ *altrep = icalparameter_get_altrep (priv->summary.altrep_param);
+ else
+ *altrep = NULL;
+ }
}
/**
@@ -370,7 +546,7 @@ cal_component_get_summary (CalComponent *comp)
* Sets the summary of a calendar component object.
**/
void
-cal_component_set_summary (CalComponent *comp, const char *summary)
+cal_component_set_summary (CalComponent *comp, const char *summary, const char *altrep)
{
CalComponentPrivate *priv;
@@ -379,8 +555,42 @@ cal_component_set_summary (CalComponent *comp, const char *summary)
priv = comp->priv;
- if (priv->summary)
- g_free (priv->summary);
+ g_return_if_fail (priv->icalcomp != NULL);
+
+ if (!summary)
+ g_return_if_fail (altrep == NULL);
- priv->summary = g_strdup (summary);
+ if (summary) {
+ if (priv->summary.prop)
+ icalproperty_set_summary (priv->summary.prop, (char *) summary);
+ else {
+ priv->summary.prop = icalproperty_new_summary ((char *) summary);
+ icalcomponent_add_property (priv->icalcomp, priv->summary.prop);
+ }
+ } else if (priv->summary.prop) {
+ icalcomponent_remove_property (priv->icalcomp, priv->summary.prop);
+ icalproperty_free (priv->summary.prop);
+
+ priv->summary.prop = NULL;
+ priv->summary.altrep_param = NULL;
+ }
+
+ if (altrep) {
+ g_assert (priv->summary.prop != NULL);
+
+ if (priv->summary.altrep_param)
+ icalparameter_set_altrep (priv->summary.altrep_param, (char *) altrep);
+ else {
+ priv->summary.altrep_param = icalparameter_new_altrep ((char *) altrep);
+ icalproperty_add_parameter (priv->summary.prop, priv->summary.altrep_param);
+ }
+ } else if (priv->summary.altrep_param) {
+#if 0
+ /* FIXME: this fucking routine will assert(0) since it is not implemented */
+ icalproperty_remove_parameter (priv->summary.prop, ICAL_ALTREP_PARAMETER);
+ icalparameter_free (priv->summary.altrep_param);
+#endif
+
+ priv->summary.altrep_param = NULL;
+ }
}
diff --git a/calendar/cal-util/cal-component.h b/calendar/cal-util/cal-component.h
index 1a5a271d9b..bc869670c8 100644
--- a/calendar/cal-util/cal-component.h
+++ b/calendar/cal-util/cal-component.h
@@ -71,16 +71,18 @@ char *cal_component_gen_uid (void);
CalComponent *cal_component_new (void);
-CalComponent *cal_component_new_from_icalcomponent (icalcomponent *ical);
+void cal_component_set_new_vtype (CalComponent *comp, CalComponentVType type);
+
+void cal_component_set_icalcomponent (CalComponent *comp, icalcomponent *icalcomp);
+icalcomponent *cal_component_get_icalcomponent (CalComponent *comp);
CalComponentVType cal_component_get_vtype (CalComponent *comp);
-void cal_component_set_vtype (CalComponent *comp, CalComponentVType type);
const char *cal_component_get_uid (CalComponent *comp);
void cal_component_set_uid (CalComponent *comp, const char *uid);
-const char *cal_component_get_summary (CalComponent *comp);
-void cal_component_set_summary (CalComponent *comp, const char *summary);
+void cal_component_get_summary (CalComponent *comp, const char **summary, const char **altrep);
+void cal_component_set_summary (CalComponent *comp, const char *summary, const char *altrep);