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[gnome-control-center] Add CcSettingEditor widget

commit 95057c5edbcd953c34e643e8fd5b5b8d86f18a04
Author: Rodrigo Moya <rodrigo gnome-db org>
Date:   Fri Oct 8 11:57:10 2010 +0200

    Add CcSettingEditor widget

 libgnome-control-center/Makefile.am           |   11 ++
 libgnome-control-center/cc-setting-editor.c   |  213 +++++++++++++++++++++++++
 libgnome-control-center/cc-setting-editor.h   |   75 +++++++++
 libgnome-control-center/test-setting-editor.c |   48 ++++++
 4 files changed, 347 insertions(+), 0 deletions(-)
---
diff --git a/libgnome-control-center/Makefile.am b/libgnome-control-center/Makefile.am
index 71719cf..17af870 100644
--- a/libgnome-control-center/Makefile.am
+++ b/libgnome-control-center/Makefile.am
@@ -10,6 +10,7 @@ lib_LTLIBRARIES = libgnome-control-center.la
 
 libgnome_control_center_include_HEADERS =	\
 	cc-panel.h				\
+	cc-setting-editor.h			\
 	cc-shell.h				\
 	gconf-property-editor.h			\
 	gconf-property-editor-marshal.h 	\
@@ -18,6 +19,8 @@ libgnome_control_center_include_HEADERS =	\
 libgnome_control_center_la_SOURCES =		\
 	cc-panel.c				\
 	cc-panel.h				\
+	cc-setting-editor.c			\
+	cc-setting-editor.h			\
 	cc-shell.c				\
 	cc-shell.h				\
 	gconf-property-editor-marshal.c 	\
@@ -39,6 +42,14 @@ libgnome_control_center_la_LIBTOOLFLAGS = --tag=disable-static
 
 libgnome_control_center_includedir = $(includedir)/gnome-control-center-1/libgnome-control-center
 
+noinst_PROGRAMS = test-setting-editor
+
+test_setting_editor_SOURCES = test-setting-editor.c
+test_setting_editor_LDADD =							\
+	$(CAPPLET_LIBS)								\
+	$(top_builddir)/libgnome-control-center/libgnome-control-center.la	\
+	$(NULL)
+
 pkgconfigdir=$(libdir)/pkgconfig
 pkgconfig_DATA=libgnome-control-center.pc
 
diff --git a/libgnome-control-center/cc-setting-editor.c b/libgnome-control-center/cc-setting-editor.c
new file mode 100644
index 0000000..c427c0b
--- /dev/null
+++ b/libgnome-control-center/cc-setting-editor.c
@@ -0,0 +1,213 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
+ *
+ * Copyright (C) 2010 Rodrigo Moya
+ *
+ * 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: Rodrigo Moya <rodrigo gnome org>
+ */
+
+#include "cc-setting-editor.h"
+
+enum {
+    PIXBUF_COL,
+    TEXT_COL,
+    APP_INFO_COL,
+    N_COLUMNS
+};
+
+typedef enum {
+  SETTING_TYPE_GSETTINGS,
+  SETTING_TYPE_APPLICATION
+} SettingType;
+
+struct _CcSettingEditorPrivate
+{
+  SettingType s_type;
+
+  GSettings *settings;
+  gchar *settings_prefix;
+  gchar *key;
+  GtkWidget *ui_control;
+};
+
+G_DEFINE_TYPE(CcSettingEditor, cc_setting_editor, G_TYPE_OBJECT)
+
+static void
+cc_setting_editor_finalize (GObject *object)
+{
+  CcSettingEditor *seditor = CC_SETTING_EDITOR (object);
+
+  if (seditor->priv != NULL) {
+    if (seditor->priv->settings != NULL)
+      g_object_unref (seditor->priv->settings);
+
+    if (seditor->priv->settings_prefix != NULL)
+      g_free (seditor->priv->settings_prefix);
+
+    if (seditor->priv->key != NULL)
+      g_free (seditor->priv->key);
+
+    g_free (seditor->priv);
+  }
+
+  G_OBJECT_CLASS (cc_setting_editor_parent_class)->finalize (object);
+}
+
+static void
+cc_setting_editor_class_init (CcSettingEditorClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->finalize = cc_setting_editor_finalize;
+}
+
+static void
+cc_setting_editor_init (CcSettingEditor *seditor)
+{
+  seditor->priv = g_new0 (CcSettingEditorPrivate, 1);
+}
+
+static CcSettingEditor *
+cc_setting_editor_new (SettingType s_type,
+                       const gchar *settings_prefix,
+                       const gchar *key,
+                       GtkWidget *ui_control)
+{
+  CcSettingEditor *seditor;
+
+  seditor = g_object_new (CC_TYPE_SETTING_EDITOR, NULL);
+  seditor->priv->s_type = s_type;
+  seditor->priv->key = g_strdup (key);
+  seditor->priv->ui_control = ui_control;
+
+  if (settings_prefix != NULL) {
+    seditor->priv->settings = g_settings_new (settings_prefix);
+    seditor->priv->settings_prefix = g_strdup (settings_prefix);
+  }
+
+  return seditor;
+}
+
+static void
+application_selection_changed_cb (GtkComboBox *combobox, CcSettingEditor *seditor)
+{
+  GtkTreeIter selected_row;
+
+  if (gtk_combo_box_get_active_iter (combobox, &selected_row)) {
+    GAppInfo *app_info;
+    GError *error = NULL;
+
+    gtk_tree_model_get (gtk_combo_box_get_model (combobox), &selected_row,
+                         APP_INFO_COL, &app_info,
+                         -1);
+    if (!g_app_info_set_as_default_for_type (app_info, seditor->priv->key, &error)) {
+      g_warning ("Could not set %s as default app for %s: %s",
+                 g_app_info_get_display_name (app_info),
+                 seditor->priv->key,
+                 error->message);
+    }
+  }
+}
+
+/**
+ * cc_setting_editor_new_application:
+ * @mime_type: The MIME type to configure application for.
+ * @combobox: The combo box widget used to display the list of applications for the given type.
+ *
+ * Create a new #CCSettingEditor object to configure the default application
+ * for the given MIME type.
+ *
+ * Return value: A newly created #CCSettingEditor object.
+ */
+GObject *
+cc_setting_editor_new_application (const gchar *mime_type, GtkWidget *combobox)
+{
+  CcSettingEditor *seditor;
+  GList *app_list;
+  GtkListStore *model;
+  GtkCellRenderer *renderer;
+  GAppInfo *default_app;
+
+  seditor = cc_setting_editor_new (SETTING_TYPE_APPLICATION,
+                                   NULL,
+                                   mime_type,
+                                   combobox);
+
+  model = gtk_list_store_new (3, GDK_TYPE_PIXBUF, G_TYPE_STRING, G_TYPE_POINTER);
+
+  renderer = gtk_cell_renderer_pixbuf_new ();
+  /* not all cells have a pixbuf, this prevents the combo box to shrink */
+  gtk_cell_renderer_set_fixed_size (renderer, -1, 22);
+  gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combobox), renderer, FALSE);
+  gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (combobox), renderer,
+                                  "pixbuf", PIXBUF_COL,
+                                  NULL);
+
+  renderer = gtk_cell_renderer_text_new ();
+  gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combobox), renderer, TRUE);
+  gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (combobox), renderer,
+                                  "text", TEXT_COL,
+                                  NULL);
+
+  /* Retrieve list of applications for the given MIME type */
+  default_app = g_app_info_get_default_for_type (mime_type, FALSE);
+
+  app_list = g_app_info_get_all_for_type (mime_type);
+  while (app_list != NULL) {
+    GtkTreeIter new_row;
+    GAppInfo *app_info = (GAppInfo *) app_list->data;
+
+    g_debug ("Adding application %s", g_app_info_get_display_name (app_info));
+
+    gtk_list_store_append (model, &new_row);
+    gtk_list_store_set (model, &new_row,
+                        PIXBUF_COL, /* FIXME */ NULL,
+                        TEXT_COL, g_app_info_get_display_name (app_info),
+                        APP_INFO_COL, app_info,
+                        -1);
+
+    /* If it's the default one, select it */
+    if (g_str_equal (g_app_info_get_name (default_app),
+                     g_app_info_get_name (app_info))) {
+      gtk_combo_box_set_active_iter (GTK_COMBO_BOX (combobox), &new_row);
+    }
+
+    app_list = g_list_remove (app_list, app_info);
+  }
+
+  gtk_combo_box_set_model (GTK_COMBO_BOX (combobox), GTK_TREE_MODEL (model));
+
+  g_signal_connect (combobox, "changed",
+                    G_CALLBACK (application_selection_changed_cb), seditor);
+
+  return (GObject *) seditor;
+}
+
+/**
+ * cc_setting_editor_get_ui_control:
+ * @seditor: a #CCSettingEditor object.
+ *
+ * Retrieve the UI control associated with the given #CCSettingEditor object.
+ *
+ * Return value: The UI control associated with the given #CCSettingEditor.
+ */
+GtkWidget *
+cc_setting_editor_get_ui_control (CcSettingEditor *seditor)
+{
+  g_return_val_if_fail (CC_IS_SETTING_EDITOR (seditor), NULL);
+
+  return seditor->priv->ui_control;
+}
diff --git a/libgnome-control-center/cc-setting-editor.h b/libgnome-control-center/cc-setting-editor.h
new file mode 100644
index 0000000..9e08151
--- /dev/null
+++ b/libgnome-control-center/cc-setting-editor.h
@@ -0,0 +1,75 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
+ *
+ * Copyright (C) 2010 Rodrigo Moya
+ *
+ * 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: Rodrigo Moya <rodrigo gnome org>
+ */
+
+#ifndef __CC_SETTING_EDITOR_H
+#define __CC_SETTING_EDITOR_H
+
+#include <glib-object.h>
+#include <gio/gio.h>
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define CC_TYPE_SETTING_EDITOR         (cc_setting_editor_get_type ())
+#define CC_SETTING_EDITOR(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), CC_TYPE_SETTING_EDITOR, CcSettingEditor))
+#define CC_SETTING_EDITOR_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST((k), CC_TYPE_SETTING_EDITOR, CcSettingEditorClass))
+#define CC_IS_SETTING_EDITOR(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), CC_TYPE_SETTING_EDITOR))
+#define CC_IS_SETTING_EDITOR_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), CC_TYPE_SETTING_EDITOR))
+#define CC_SETTING_EDITOR_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), CC_TYPE_SETTING_EDITOR, CcSettingEditorClass))
+
+typedef struct _CcSettingEditorPrivate CcSettingEditorPrivate;
+typedef struct _CcSettingEditor        CcSettingEditor;
+typedef struct _CcSettingEditorClass   CcSettingEditorClass;
+
+/**
+ * CcSettingEditor:
+ *
+ * The contents of this struct are private and should not be accessed directly.
+ */
+struct _CcSettingEditor
+{
+  /*< private >*/
+  GObject parent;
+  CcSettingEditorPrivate *priv;
+};
+
+/**
+ * CcSettingEditorClass:
+ *
+ * The contents of this struct are private and should not be accessed directly.
+ */
+struct _CcSettingEditorClass
+{
+  /*< private >*/
+  GObjectClass parent_class;
+
+  void (* value_changed) (CcSettingEditor *seditor, const gchar *key, GVariant *value);
+};
+
+GType      cc_setting_editor_get_type (void);
+
+GObject   *cc_setting_editor_new_application (const gchar *mime_type, GtkWidget *combobox);
+
+GtkWidget *cc_setting_editor_get_ui_control (CcSettingEditor *seditor);
+
+G_END_DECLS
+
+#endif
diff --git a/libgnome-control-center/test-setting-editor.c b/libgnome-control-center/test-setting-editor.c
new file mode 100644
index 0000000..6620f1b
--- /dev/null
+++ b/libgnome-control-center/test-setting-editor.c
@@ -0,0 +1,48 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
+ *
+ * Copyright (C) 2010 Rodrigo Moya
+ *
+ * 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: Rodrigo Moya <rodrigo gnome org>
+ */
+
+#include "cc-setting-editor.h"
+
+int
+main (int argc, char *argv[])
+{
+  GtkWidget *dialog, *w;
+  GObject *seditor;
+
+  gtk_init (&argc, &argv);
+
+  dialog = gtk_dialog_new_with_buttons ("Test Setting Editor", NULL, 0,
+                                        GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
+                                        NULL);
+  g_signal_connect (dialog, "response", G_CALLBACK (gtk_main_quit), NULL);
+
+  /* Create a default application selector */
+  w = gtk_combo_box_new ();
+  //seditor = cc_setting_editor_new_application ("x-scheme-handler/http", w);
+  seditor = cc_setting_editor_new_application ("text/plain", w);
+  gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))), w, TRUE, FALSE, 3);
+
+  /* Run the dialog */
+  gtk_widget_show_all (dialog);
+  gtk_main ();
+
+  return 0;
+}
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