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federated-calendar/src/gcal-subscriber-view.c
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/* -*- mode: c; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* gcal-subscriber-view.c
*
* Copyright (C) 2014 - Erick Pérez Castellanos
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "gcal-subscriber-view.h"
#include "gcal-subscriber-view-private.h"
#include "gcal-view.h"
#include "gcal-event-widget.h"
enum
{
EVENT_ACTIVATED,
NUM_SIGNALS
};
static guint signals[NUM_SIGNALS] = { 0, };
static void event_activated (GcalEventWidget *widget,
gpointer user_data);
static void event_visibility_changed (GtkWidget *widget,
gpointer user_data);
static void gcal_data_model_subscriber_interface_init (ECalDataModelSubscriberInterface *iface);
static void gcal_subscriber_view_finalize (GObject *object);
static void gcal_subscriber_view_add (GtkContainer *container,
GtkWidget *widget);
static void gcal_subscriber_view_remove (GtkContainer *container,
GtkWidget *widget);
static void gcal_subscriber_view_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data);
static gboolean gcal_subscriber_view_is_child_multicell (GcalSubscriberView *subscriber,
GcalEventWidget *child);
static guint gcal_subscriber_view_get_child_cell (GcalSubscriberView *subscriber,
GcalEventWidget *child);
static void gcal_subscriber_view_clear_state (GcalSubscriberView *subscriber_view);
static void gcal_subscriber_view_component_added (ECalDataModelSubscriber *subscriber,
ECalClient *client,
ECalComponent *comp);
static void gcal_subscriber_view_component_modified (ECalDataModelSubscriber *subscriber,
ECalClient *client,
ECalComponent *comp);
static void gcal_subscriber_view_component_removed (ECalDataModelSubscriber *subscriber,
ECalClient *client,
const gchar *uid,
const gchar *rid);
static void gcal_subscriber_view_freeze (ECalDataModelSubscriber *subscriber);
static void gcal_subscriber_view_thaw (ECalDataModelSubscriber *subscriber);
G_DEFINE_TYPE_WITH_CODE (GcalSubscriberView, gcal_subscriber_view, GTK_TYPE_CONTAINER,
G_ADD_PRIVATE (GcalSubscriberView)
G_IMPLEMENT_INTERFACE (E_TYPE_CAL_DATA_MODEL_SUBSCRIBER,
gcal_data_model_subscriber_interface_init));
static void
event_activated (GcalEventWidget *widget,
gpointer user_data)
{
/* FIXME: implement clear_state vfunc in descendants */
gcal_subscriber_view_clear_state (GCAL_SUBSCRIBER_VIEW (user_data));
g_signal_emit (GCAL_SUBSCRIBER_VIEW (user_data), signals[EVENT_ACTIVATED], 0, widget);
}
static void
event_visibility_changed(GtkWidget *widget,
gpointer user_data)
{
GcalSubscriberViewPrivate *priv = GCAL_SUBSCRIBER_VIEW (user_data)->priv;
priv->children_changed = TRUE;
}
static void
gcal_subscriber_view_class_init (GcalSubscriberViewClass *klass)
{
GtkContainerClass *container_class;
klass->is_child_multicell = gcal_subscriber_view_is_child_multicell;
klass->get_child_cell = gcal_subscriber_view_get_child_cell;
G_OBJECT_CLASS (klass)->finalize = gcal_subscriber_view_finalize;
container_class = GTK_CONTAINER_CLASS (klass);
container_class->add = gcal_subscriber_view_add;
container_class->remove = gcal_subscriber_view_remove;
container_class->forall = gcal_subscriber_view_forall;
signals[EVENT_ACTIVATED] = g_signal_new ("event-activated", GCAL_TYPE_SUBSCRIBER_VIEW, G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GcalSubscriberViewClass, event_activated),
NULL, NULL, NULL,
G_TYPE_NONE, 1, GCAL_TYPE_EVENT_WIDGET);
}
static void
gcal_subscriber_view_init (GcalSubscriberView *self)
{
GcalSubscriberViewPrivate *priv;
priv = gcal_subscriber_view_get_instance_private (self);
self->priv = priv;
priv->children = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, (GDestroyNotify) g_list_free);
priv->single_cell_children = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, (GDestroyNotify) g_list_free);
priv->overflow_cells = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, (GDestroyNotify) g_list_free);
priv->hidden_as_overflow = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
}
static void
gcal_data_model_subscriber_interface_init (ECalDataModelSubscriberInterface *iface)
{
iface->component_added = gcal_subscriber_view_component_added;
iface->component_modified = gcal_subscriber_view_component_modified;
iface->component_removed = gcal_subscriber_view_component_removed;
iface->freeze = gcal_subscriber_view_freeze;
iface->thaw = gcal_subscriber_view_thaw;
}
static void
gcal_subscriber_view_finalize (GObject *object)
{
GcalSubscriberViewPrivate *priv;
priv = gcal_subscriber_view_get_instance_private (GCAL_SUBSCRIBER_VIEW (object));
g_hash_table_destroy (priv->children);
g_hash_table_destroy (priv->single_cell_children);
g_hash_table_destroy (priv->overflow_cells);
g_hash_table_destroy (priv->hidden_as_overflow);
if (priv->multi_cell_children != NULL)
g_list_free (priv->multi_cell_children);
/* Chain up to parent's finalize() method. */
G_OBJECT_CLASS (gcal_subscriber_view_parent_class)->finalize (object);
}
static void
gcal_subscriber_view_add (GtkContainer *container,
GtkWidget *widget)
{
GcalSubscriberViewPrivate *priv;
const gchar *uuid;
GList *l = NULL;
g_return_if_fail (GCAL_IS_EVENT_WIDGET (widget));
g_return_if_fail (gtk_widget_get_parent (widget) == NULL);
priv = gcal_subscriber_view_get_instance_private (GCAL_SUBSCRIBER_VIEW (container));
uuid = gcal_event_widget_peek_uuid (GCAL_EVENT_WIDGET (widget));
/* inserting in all children hash */
if (g_hash_table_lookup (priv->children, uuid) != NULL)
{
g_warning ("Event with uuid: %s already added", uuid);
gtk_widget_destroy (widget);
return;
}
priv->children_changed = TRUE;
l = g_list_append (l, widget);
g_hash_table_insert (priv->children, g_strdup (uuid), l);
if (gcal_subscriber_view_is_child_multicell (GCAL_SUBSCRIBER_VIEW (container), GCAL_EVENT_WIDGET (widget)))
{
priv->multi_cell_children = g_list_insert_sorted (priv->multi_cell_children, widget,
(GCompareFunc) gcal_event_widget_compare_by_length);
}
else
{
guint cell_idx = gcal_subscriber_view_get_child_cell (GCAL_SUBSCRIBER_VIEW (container), GCAL_EVENT_WIDGET (widget));
l = g_hash_table_lookup (priv->single_cell_children, GINT_TO_POINTER (cell_idx));
l = g_list_insert_sorted (l, widget, (GCompareFunc) gcal_event_widget_compare_by_start_date);
if (g_list_length (l) != 1)
{
g_hash_table_steal (priv->single_cell_children, GINT_TO_POINTER (cell_idx));
}
g_hash_table_insert (priv->single_cell_children, GINT_TO_POINTER (cell_idx), l);
}
_gcal_subscriber_view_setup_child (GCAL_SUBSCRIBER_VIEW (container), widget);
}
static void
gcal_subscriber_view_remove (GtkContainer *container,
GtkWidget *widget)
{
GcalSubscriberViewPrivate *priv;
const gchar *uuid;
GList *l, *aux;
GtkWidget *master_widget;
g_return_if_fail (gtk_widget_get_parent (widget) == GTK_WIDGET (container));
priv = gcal_subscriber_view_get_instance_private (GCAL_SUBSCRIBER_VIEW (container));
uuid = gcal_event_widget_peek_uuid (GCAL_EVENT_WIDGET (widget));
l = g_hash_table_lookup (priv->children, uuid);
if (l != NULL)
{
priv->children_changed = TRUE;
gtk_widget_unparent (widget);
master_widget = (GtkWidget*) l->data;
if (widget == master_widget)
{
if (gcal_subscriber_view_is_child_multicell (GCAL_SUBSCRIBER_VIEW (container), GCAL_EVENT_WIDGET (widget)))
{
priv->multi_cell_children = g_list_remove (priv->multi_cell_children, widget);
aux = g_list_next (l);
if (aux != NULL)
{
l->next = NULL;
aux->prev = NULL;
g_list_foreach (aux, (GFunc) gtk_widget_unparent, NULL);
g_list_free (aux);
}
}
else
{
guint cell_idx = gcal_subscriber_view_get_child_cell (GCAL_SUBSCRIBER_VIEW (container), GCAL_EVENT_WIDGET (widget));
aux = g_hash_table_lookup (priv->single_cell_children, GINT_TO_POINTER (cell_idx));
aux = g_list_remove (g_list_copy (aux), widget);
if (aux == NULL)
g_hash_table_remove (priv->single_cell_children, GINT_TO_POINTER (cell_idx));
else
g_hash_table_replace (priv->single_cell_children, GINT_TO_POINTER (cell_idx), aux);
}
}
l = g_list_remove (g_list_copy (l), widget);
if (l == NULL)
g_hash_table_remove (priv->children, uuid);
else
g_hash_table_replace (priv->children, g_strdup (uuid), l);
g_hash_table_remove (priv->hidden_as_overflow, uuid);
gtk_widget_queue_resize (GTK_WIDGET (container));
}
}
static void
gcal_subscriber_view_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
GcalSubscriberViewPrivate *priv;
GList *l, *l2, *aux = NULL;
priv = gcal_subscriber_view_get_instance_private (GCAL_SUBSCRIBER_VIEW (container));
l2 = g_hash_table_get_values (priv->children);
for (l = l2; l != NULL; l = g_list_next (l))
aux = g_list_concat (aux, g_list_reverse (g_list_copy (l->data)));
g_list_free (l2);
l = aux;
while (aux != NULL)
{
GtkWidget *widget = (GtkWidget*) aux->data;
aux = aux->next;
(*callback) (widget, callback_data);
}
g_list_free (l);
}
static gboolean
gcal_subscriber_view_is_child_multicell (GcalSubscriberView *subscriber,
GcalEventWidget *child)
{
GcalSubscriberViewClass *klass;
g_return_val_if_fail (GCAL_IS_SUBSCRIBER_VIEW (subscriber), FALSE);
g_return_val_if_fail (GCAL_IS_EVENT_WIDGET (child), FALSE);
klass = GCAL_SUBSCRIBER_VIEW_GET_CLASS (subscriber);
if (klass->is_child_multicell)
return klass->is_child_multicell (subscriber, child);
return FALSE;
}
static guint
gcal_subscriber_view_get_child_cell (GcalSubscriberView *subscriber,
GcalEventWidget *child)
{
GcalSubscriberViewClass *klass;
g_return_val_if_fail (GCAL_IS_SUBSCRIBER_VIEW (subscriber), 0);
g_return_val_if_fail (GCAL_IS_EVENT_WIDGET (child), 0);
klass = GCAL_SUBSCRIBER_VIEW_GET_CLASS (subscriber);
if (klass->get_child_cell)
return klass->get_child_cell (subscriber, child);
return 0;
}
static void
gcal_subscriber_view_clear_state (GcalSubscriberView *subscriber_view)
{
GcalSubscriberViewClass *klass;
g_return_if_fail (GCAL_IS_SUBSCRIBER_VIEW (subscriber_view));
klass = GCAL_SUBSCRIBER_VIEW_GET_CLASS (subscriber_view);
if (klass->clear_state)
klass->clear_state (subscriber_view);
}
/* ECalDataModelSubscriber interface API */
static void
gcal_subscriber_view_component_added (ECalDataModelSubscriber *subscriber,
ECalClient *client,
ECalComponent *comp)
{
GtkWidget *event;
GcalEventData *data;
data = g_new0 (GcalEventData, 1);
data->source = e_client_get_source (E_CLIENT (client));
data->event_component = e_cal_component_clone (comp);
event = gcal_event_widget_new_from_data (data);
gcal_event_widget_set_read_only (GCAL_EVENT_WIDGET (event), e_client_is_readonly (E_CLIENT (client)));
gtk_widget_show (event);
gtk_container_add (GTK_CONTAINER (subscriber), event);
g_free (data);
}
static void
gcal_subscriber_view_component_modified (ECalDataModelSubscriber *subscriber,
ECalClient *client,
ECalComponent *comp)
{
GcalSubscriberViewPrivate *priv;
GList *l;
GtkWidget *new_widget;
GcalEventData *data;
priv = gcal_subscriber_view_get_instance_private (GCAL_SUBSCRIBER_VIEW (subscriber));
data = g_new0 (GcalEventData, 1);
data->source = e_client_get_source (E_CLIENT (client));
data->event_component = e_cal_component_clone (comp);
new_widget = gcal_event_widget_new_from_data (data);
g_free (data);
l = g_hash_table_lookup (priv->children, gcal_event_widget_peek_uuid (GCAL_EVENT_WIDGET (new_widget)));
if (l != NULL)
{
gtk_widget_destroy (l->data);
gtk_widget_show (new_widget);
gtk_container_add (GTK_CONTAINER (subscriber), new_widget);
}
else
{
g_warning ("%s: Widget with uuid: %s not found in view: %s",
G_STRFUNC, gcal_event_widget_peek_uuid (GCAL_EVENT_WIDGET (new_widget)),
gtk_widget_get_name (GTK_WIDGET (subscriber)));
gtk_widget_destroy (new_widget);
}
}
static void
gcal_subscriber_view_component_removed (ECalDataModelSubscriber *subscriber,
ECalClient *client,
const gchar *uid,
const gchar *rid)
{
GcalSubscriberViewPrivate *priv;
const gchar *sid;
gchar *uuid;
GList *l;
priv = gcal_subscriber_view_get_instance_private (GCAL_SUBSCRIBER_VIEW (subscriber));
sid = e_source_get_uid (e_client_get_source (E_CLIENT (client)));
if (rid != NULL)
uuid = g_strdup_printf ("%s:%s:%s", sid, uid, rid);
else
uuid = g_strdup_printf ("%s:%s", sid, uid);
l = g_hash_table_lookup (priv->children, uuid);
if (l != NULL)
{
gtk_widget_destroy (l->data);
}
else
{
g_warning ("%s: Widget with uuid: %s not found in view: %s",
G_STRFUNC, uuid, gtk_widget_get_name (GTK_WIDGET (subscriber)));
}
g_free (uuid);
}
static void
gcal_subscriber_view_freeze (ECalDataModelSubscriber *subscriber)
{
}
static void
gcal_subscriber_view_thaw (ECalDataModelSubscriber *subscriber)
{
}
/* Public API */
GtkWidget*
gcal_subscriber_view_get_child_by_uuid (GcalSubscriberView *subscriber_view,
const gchar *uuid)
{
GcalSubscriberViewClass *klass;
GcalSubscriberViewPrivate *priv;
GList *l;
g_return_val_if_fail (GCAL_IS_SUBSCRIBER_VIEW (subscriber_view), NULL);
/* Allow for descendants to hook in here */
klass = GCAL_SUBSCRIBER_VIEW_GET_CLASS (subscriber_view);
if (klass->get_child_by_uuid)
return klass->get_child_by_uuid (subscriber_view, uuid);
priv = gcal_subscriber_view_get_instance_private (subscriber_view);
l = g_hash_table_lookup (priv->children, uuid);
if (l != NULL)
return l->data;
return 0;
}
void
_gcal_subscriber_view_setup_child (GcalSubscriberView *subscriber_view,
GtkWidget *child_widget)
{
if (gtk_widget_get_parent (child_widget) == NULL)
gtk_widget_set_parent (child_widget, GTK_WIDGET (subscriber_view));
g_signal_connect (child_widget, "activate", G_CALLBACK (event_activated), subscriber_view);
g_signal_connect (child_widget, "hide", G_CALLBACK (event_visibility_changed), subscriber_view);
g_signal_connect (child_widget, "show", G_CALLBACK (event_visibility_changed), subscriber_view);
}