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[empathy] add EmpathyCalendarButton

commit f0154b61b01a8cfe1db948126d64508880116fa4
Author: Guillaume Desmottes <guillaume desmottes collabora co uk>
Date:   Tue Mar 13 16:08:00 2012 +0100

    add EmpathyCalendarButton
    
    https://bugzilla.gnome.org/show_bug.cgi?id=671981

 libempathy-gtk/Makefile.am                       |    2 +
 libempathy-gtk/empathy-calendar-button.c         |  273 ++++++++++++++++++++++
 libempathy-gtk/empathy-calendar-button.h         |   68 ++++++
 tests/interactive/.gitignore                     |    1 +
 tests/interactive/Makefile.am                    |    4 +-
 tests/interactive/test-empathy-calendar-button.c |   72 ++++++
 6 files changed, 419 insertions(+), 1 deletions(-)
---
diff --git a/libempathy-gtk/Makefile.am b/libempathy-gtk/Makefile.am
index 32426a9..abc48fe 100644
--- a/libempathy-gtk/Makefile.am
+++ b/libempathy-gtk/Makefile.am
@@ -36,6 +36,7 @@ libempathy_gtk_handwritten_source =            	\
 	empathy-avatar-image.c			\
 	empathy-bad-password-dialog.c 		\
 	empathy-base-password-dialog.c 		\
+	empathy-calendar-button.c \
 	empathy-call-utils.c			\
 	empathy-cell-renderer-activatable.c	\
 	empathy-cell-renderer-expander.c	\
@@ -102,6 +103,7 @@ libempathy_gtk_headers =			\
 	empathy-avatar-image.h			\
 	empathy-bad-password-dialog.h 		\
 	empathy-base-password-dialog.h 		\
+	empathy-calendar-button.h \
 	empathy-call-utils.h			\
 	empathy-cell-renderer-activatable.h	\
 	empathy-cell-renderer-expander.h	\
diff --git a/libempathy-gtk/empathy-calendar-button.c b/libempathy-gtk/empathy-calendar-button.c
new file mode 100644
index 0000000..9f4c479
--- /dev/null
+++ b/libempathy-gtk/empathy-calendar-button.c
@@ -0,0 +1,273 @@
+/*
+ * empathy-calendar-button.c - Source for EmpathyCalendarButton
+ * Copyright (C) 2012 Collabora Ltd.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include "config.h"
+
+#include <glib/gi18n-lib.h>
+
+#include "empathy-calendar-button.h"
+
+#include <libempathy/empathy-utils.h>
+
+#define DEBUG_FLAG EMPATHY_DEBUG_OTHER_THING
+#include <libempathy/empathy-debug.h>
+
+G_DEFINE_TYPE (EmpathyCalendarButton, empathy_calendar_button, GTK_TYPE_BOX)
+
+/* signal enum */
+enum {
+  DATE_CHANGED,
+  LAST_SIGNAL,
+};
+
+static guint signals[LAST_SIGNAL] = {0};
+
+struct _EmpathyCalendarButtonPriv {
+  GDate *date;
+
+  GtkWidget *button_date;
+  GtkWidget *button_clear;
+  GtkWidget *dialog;
+  GtkWidget *calendar;
+};
+
+static void
+empathy_calendar_button_finalize (GObject *object)
+{
+  EmpathyCalendarButton *self = (EmpathyCalendarButton *) object;
+
+  tp_clear_pointer (&self->priv->date, g_date_free);
+
+  G_OBJECT_CLASS (empathy_calendar_button_parent_class)->finalize (object);
+}
+
+static void
+update_label (EmpathyCalendarButton *self)
+{
+  if (self->priv->date == NULL)
+    {
+      gtk_button_set_label (GTK_BUTTON (self->priv->button_date),
+          _("Select..."));
+    }
+  else
+    {
+      gchar buffer[128];
+
+      g_date_strftime (buffer, 128, "%e %b %Y", self->priv->date);
+      gtk_button_set_label (GTK_BUTTON (self->priv->button_date), buffer);
+    }
+}
+
+static void
+empathy_calendar_button_constructed (GObject *object)
+{
+  EmpathyCalendarButton *self = (EmpathyCalendarButton *) object;
+
+  G_OBJECT_CLASS (empathy_calendar_button_parent_class)->constructed (
+      object);
+
+  update_label (self);
+}
+
+static void
+dialog_response (GtkDialog *dialog,
+    gint response,
+    EmpathyCalendarButton *self)
+{
+  GDate *date;
+  guint year, month, day;
+
+  if (response != GTK_RESPONSE_OK)
+    goto out;
+
+  gtk_calendar_get_date (GTK_CALENDAR (self->priv->calendar),
+      &year, &month, &day);
+  date = g_date_new_dmy (day, month + 1, year);
+
+  empathy_calendar_button_set_date (self, date);
+
+  g_date_free (date);
+
+out:
+  gtk_widget_hide (GTK_WIDGET (dialog));
+}
+
+static gboolean
+dialog_destroy (GtkWidget *widget,
+    EmpathyCalendarButton *self)
+{
+  self->priv->dialog = NULL;
+  self->priv->calendar = NULL;
+
+  return FALSE;
+}
+
+static void
+update_calendar (EmpathyCalendarButton *self)
+{
+  if (self->priv->calendar == NULL)
+    return;
+
+  gtk_calendar_clear_marks (GTK_CALENDAR (self->priv->calendar));
+
+  if (self->priv->date == NULL)
+    return;
+
+  gtk_calendar_select_day (GTK_CALENDAR (self->priv->calendar),
+      g_date_get_day (self->priv->date));
+  gtk_calendar_select_month (GTK_CALENDAR (self->priv->calendar),
+      g_date_get_month (self->priv->date) - 1,
+      g_date_get_year (self->priv->date));
+  gtk_calendar_mark_day (GTK_CALENDAR (self->priv->calendar),
+      g_date_get_day (self->priv->date));
+}
+
+static void
+empathy_calendar_button_date_clicked (GtkButton *button,
+    EmpathyCalendarButton *self)
+{
+  if (self->priv->dialog == NULL)
+    {
+      GtkWidget *parent, *content;
+
+      parent = gtk_widget_get_toplevel (GTK_WIDGET (button));
+
+      self->priv->dialog = gtk_dialog_new_with_buttons (NULL,
+          GTK_WINDOW (parent), GTK_DIALOG_MODAL,
+          GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
+          _("_Select"), GTK_RESPONSE_OK,
+          NULL);
+
+      gtk_window_set_transient_for (GTK_WINDOW (self->priv->dialog),
+          GTK_WINDOW (parent));
+
+      self->priv->calendar = gtk_calendar_new ();
+
+      update_calendar (self);
+
+      content = gtk_dialog_get_content_area (GTK_DIALOG (self->priv->dialog));
+
+      gtk_box_pack_start (GTK_BOX (content), self->priv->calendar, TRUE, TRUE,
+          6);
+      gtk_widget_show (self->priv->calendar);
+
+      g_signal_connect (self->priv->dialog, "response",
+          G_CALLBACK (dialog_response), self);
+      g_signal_connect (self->priv->dialog, "destroy",
+          G_CALLBACK (dialog_destroy), self);
+    }
+
+  gtk_window_present (GTK_WINDOW (self->priv->dialog));
+}
+
+static void
+empathy_calendar_button_clear_clicked (GtkButton *button,
+    EmpathyCalendarButton *self)
+{
+  empathy_calendar_button_set_date (self, NULL);
+}
+
+static void
+empathy_calendar_button_init (EmpathyCalendarButton *self)
+{
+  GtkWidget *image;
+  GtkStyleContext *context;
+
+  self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
+      EMPATHY_TYPE_CALENDAR_BUTTON, EmpathyCalendarButtonPriv);
+
+  context = gtk_widget_get_style_context (GTK_WIDGET (self));
+  gtk_style_context_add_class (context, GTK_STYLE_CLASS_LINKED);
+
+  /* Date */
+  self->priv->button_date = gtk_button_new ();
+
+  g_signal_connect (self->priv->button_date, "clicked",
+      G_CALLBACK (empathy_calendar_button_date_clicked), self);
+
+  gtk_button_set_alignment (GTK_BUTTON (self->priv->button_date), 0, 0.5);
+
+  gtk_box_pack_start (GTK_BOX (self), self->priv->button_date, TRUE, TRUE, 0);
+
+  /* Clear */
+  self->priv->button_clear = gtk_button_new ();
+
+  image = gtk_image_new_from_stock (GTK_STOCK_CLEAR,
+      GTK_ICON_SIZE_MENU);
+  gtk_button_set_image (GTK_BUTTON (self->priv->button_clear), image);
+
+  g_signal_connect (self->priv->button_clear, "clicked",
+      G_CALLBACK (empathy_calendar_button_clear_clicked), self);
+
+  gtk_box_pack_start (GTK_BOX (self), self->priv->button_clear,
+      FALSE, FALSE, 0);
+}
+
+static void
+empathy_calendar_button_class_init (EmpathyCalendarButtonClass *klass)
+{
+  GObjectClass *oclass = G_OBJECT_CLASS (klass);
+
+  g_type_class_add_private (klass, sizeof (EmpathyCalendarButtonPriv));
+
+  oclass->finalize = empathy_calendar_button_finalize;
+  oclass->constructed = empathy_calendar_button_constructed;
+
+  signals[DATE_CHANGED] = g_signal_new ("date-changed",
+      G_TYPE_FROM_CLASS (klass),
+      G_SIGNAL_RUN_LAST, 0,
+      NULL, NULL,
+      g_cclosure_marshal_generic,
+      G_TYPE_NONE, 1, G_TYPE_DATE);
+}
+
+GtkWidget *
+empathy_calendar_button_new (void)
+{
+  return g_object_new (EMPATHY_TYPE_CALENDAR_BUTTON,
+      "orientation", GTK_ORIENTATION_HORIZONTAL,
+      NULL);
+}
+
+GDate *
+empathy_calendar_button_get_date (EmpathyCalendarButton *self)
+{
+  return self->priv->date;
+}
+
+void
+empathy_calendar_button_set_date (EmpathyCalendarButton *self,
+    GDate *date)
+{
+  if (date == self->priv->date)
+    return;
+
+  tp_clear_pointer (&self->priv->date, g_date_free);
+
+  if (date != NULL)
+    {
+      /* There is no g_date_copy()... */
+      self->priv->date = g_date_new_dmy (date->day, date->month, date->year);
+    }
+
+  update_label (self);
+  update_calendar (self);
+
+  g_signal_emit (self, signals[DATE_CHANGED], 0, self->priv->date);
+}
diff --git a/libempathy-gtk/empathy-calendar-button.h b/libempathy-gtk/empathy-calendar-button.h
new file mode 100644
index 0000000..3f1aed1
--- /dev/null
+++ b/libempathy-gtk/empathy-calendar-button.h
@@ -0,0 +1,68 @@
+/*
+ * empathy-calendar-button.h - Header for EmpathyCalendarButton
+ * Copyright (C) 2012 Collabora Ltd.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef __EMPATHY_CALENDAR_BUTTON_H__
+#define __EMPATHY_CALENDAR_BUTTON_H__
+
+#include <glib-object.h>
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+typedef struct _EmpathyCalendarButton EmpathyCalendarButton;
+typedef struct _EmpathyCalendarButtonClass EmpathyCalendarButtonClass;
+typedef struct _EmpathyCalendarButtonPriv EmpathyCalendarButtonPriv;
+
+struct _EmpathyCalendarButtonClass {
+    GtkBoxClass parent_class;
+};
+
+struct _EmpathyCalendarButton {
+    GtkBox parent;
+    EmpathyCalendarButtonPriv *priv;
+};
+
+GType empathy_calendar_button_get_type (void);
+
+#define EMPATHY_TYPE_CALENDAR_BUTTON \
+  (empathy_calendar_button_get_type ())
+#define EMPATHY_CALENDAR_BUTTON(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj), EMPATHY_TYPE_CALENDAR_BUTTON, \
+    EmpathyCalendarButton))
+#define EMPATHY_CALENDAR_BUTTON_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass), EMPATHY_TYPE_CALENDAR_BUTTON, \
+  EmpathyCalendarButtonClass))
+#define EMPATHY_IS_CALENDAR_BUTTON(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj), EMPATHY_TYPE_CALENDAR_BUTTON))
+#define EMPATHY_IS_CALENDAR_BUTTON_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass), EMPATHY_TYPE_CALENDAR_BUTTON))
+#define EMPATHY_CALENDAR_BUTTON_GET_CLASS(obj) \
+  (G_TYPE_INSTANCE_GET_CLASS ((obj), EMPATHY_TYPE_CALENDAR_BUTTON, \
+  EmpathyCalendarButtonClass))
+
+GtkWidget * empathy_calendar_button_new (void);
+
+GDate * empathy_calendar_button_get_date (EmpathyCalendarButton *self);
+
+void empathy_calendar_button_set_date (EmpathyCalendarButton *self,
+    GDate *date);
+
+G_END_DECLS
+
+#endif /* #ifndef __EMPATHY_CALENDAR_BUTTON_H__*/
diff --git a/tests/interactive/.gitignore b/tests/interactive/.gitignore
index ea32716..535570e 100644
--- a/tests/interactive/.gitignore
+++ b/tests/interactive/.gitignore
@@ -9,3 +9,4 @@ test-empathy-presence-chooser
 test-empathy-status-preset-dialog
 test-empathy-protocol-chooser
 test-empathy-account-chooser
+test-empathy-calendar-button
diff --git a/tests/interactive/Makefile.am b/tests/interactive/Makefile.am
index bb0f415..5cb89bb 100644
--- a/tests/interactive/Makefile.am
+++ b/tests/interactive/Makefile.am
@@ -19,7 +19,8 @@ noinst_PROGRAMS =			\
 	test-empathy-presence-chooser	\
 	test-empathy-status-preset-dialog \
 	test-empathy-protocol-chooser \
-	test-empathy-account-chooser
+	test-empathy-account-chooser \
+	test-empathy-calendar-button
 
 empathy_logs_SOURCES = empathy-logs.c
 test_empathy_contact_blocking_dialog_SOURCES = test-empathy-contact-blocking-dialog.c
@@ -27,3 +28,4 @@ test_empathy_presence_chooser_SOURCES = test-empathy-presence-chooser.c
 test_empathy_status_preset_dialog_SOURCES = test-empathy-status-preset-dialog.c
 test_empathy_protocol_chooser_SOURCES = test-empathy-protocol-chooser.c
 test_empathy_account_chooser_SOURCES = test-empathy-account-chooser.c
+test_empathy_calendar_button_SOURCES = test-empathy-calendar-button.c
diff --git a/tests/interactive/test-empathy-calendar-button.c b/tests/interactive/test-empathy-calendar-button.c
new file mode 100644
index 0000000..df91f1f
--- /dev/null
+++ b/tests/interactive/test-empathy-calendar-button.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2012 Collabora Ltd.
+ *
+ * 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, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Authors: Danielle Madeley <danielle madeley collabora co uk>
+ */
+
+#include "config.h"
+
+#include <libempathy-gtk/empathy-calendar-button.h>
+
+static void
+date_changed_cb (EmpathyCalendarButton *button,
+    GDate *date,
+    gpointer user_data)
+{
+  if (date == NULL)
+    {
+      g_print ("date changed: none\n");
+    }
+  else
+    {
+      gchar buffer[128];
+
+      g_date_strftime (buffer, 128, "%x", date);
+      g_print ("date changed: %s\n", buffer);
+    }
+}
+
+int
+main (int argc,
+    char **argv)
+{
+  GtkWidget *win, *button;
+  GDate *date;
+
+  gtk_init (&argc, &argv);
+
+  win = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+
+  g_signal_connect_swapped (win, "destroy",
+      G_CALLBACK (gtk_main_quit), NULL);
+
+  button = empathy_calendar_button_new ();
+
+  date = g_date_new_dmy (30, 11, 1984);
+  empathy_calendar_button_set_date (EMPATHY_CALENDAR_BUTTON (button), date);
+  g_date_free (date);
+
+  g_signal_connect (button, "date-changed",
+      G_CALLBACK (date_changed_cb), NULL);
+
+  gtk_container_add (GTK_CONTAINER (win), button);
+  gtk_widget_show_all (win);
+
+  gtk_main ();
+  return 0;
+}
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