[gtk+] inspector: Support saving CSS

[Matthias Clasen <matthiasc src gnome org>]

commit 6a9ea3487ec0f99ced4cdb05464089336a30f262
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri May 30 20:35:43 2014 -0400

    inspector: Support saving CSS
    
    We have a file chooser, lets use it.

 gtk/inspector/css-editor.c  |   91 +++++++++++++++++++++++++++++++++++++------
 gtk/inspector/css-editor.ui |    8 ++++
 2 files changed, 87 insertions(+), 12 deletions(-)
---
diff --git a/gtk/inspector/css-editor.c b/gtk/inspector/css-editor.c
index 2639fb1..10c63b9 100644
--- a/gtk/inspector/css-editor.c
+++ b/gtk/inspector/css-editor.c
@@ -114,6 +114,84 @@ disable_toggled (GtkToggleToolButton   *button,
     }
 }
 
+static gchar *
+get_current_text (GtkTextBuffer *buffer)
+{
+  GtkTextIter start, end;
+
+  gtk_text_buffer_get_start_iter (buffer, &start);
+  gtk_text_buffer_get_end_iter (buffer, &end);
+  gtk_text_buffer_remove_all_tags (buffer, &start, &end);
+
+  return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
+}
+
+static void
+save_to_file (GtkInspectorCssEditor *ce,
+              const gchar           *filename)
+{
+  gchar *text;
+  GError *error = NULL;
+
+  text = get_current_text (ce->priv->text);
+
+  if (!g_file_set_contents (filename, text, -1, &error))
+    {
+      GtkWidget *dialog;
+
+      dialog = gtk_message_dialog_new (GTK_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (ce))),
+                                       GTK_DIALOG_MODAL|GTK_DIALOG_DESTROY_WITH_PARENT,
+                                       GTK_MESSAGE_INFO,
+                                       GTK_BUTTONS_OK,
+                                       _("Saving CSS failed"));
+      gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog),
+                                                "%s", error->message);
+      g_signal_connect (dialog, "response", G_CALLBACK (gtk_widget_destroy), NULL);
+      gtk_widget_show (dialog);
+      g_error_free (error);
+    }
+
+  g_free (text);
+}
+
+static void
+save_response (GtkWidget             *dialog,
+               gint                   response,
+               GtkInspectorCssEditor *ce)
+{
+  gtk_widget_hide (dialog);
+
+  if (response == GTK_RESPONSE_ACCEPT)
+    {
+      gchar *filename;
+
+      filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
+      save_to_file (ce, filename);
+      g_free (filename);
+    }
+
+  gtk_widget_destroy (dialog);
+}
+
+static void
+save_clicked (GtkToolButton         *button,
+              GtkInspectorCssEditor *ce)
+{
+  GtkWidget *dialog;
+
+  dialog = gtk_file_chooser_dialog_new ("",
+                                        GTK_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (ce))),
+                                        GTK_FILE_CHOOSER_ACTION_SAVE,
+                                        _("_Cancel"), GTK_RESPONSE_CANCEL,
+                                        _("_Save"), GTK_RESPONSE_ACCEPT,
+                                        NULL);
+  gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_ACCEPT);
+  gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
+  gtk_file_chooser_set_do_overwrite_confirmation (GTK_FILE_CHOOSER (dialog), TRUE);
+  g_signal_connect (dialog, "response", G_CALLBACK (save_response), ce);
+  gtk_widget_show (dialog);
+}
+
 static void
 apply_system_font (GtkInspectorCssEditor *ce)
 {
@@ -128,18 +206,6 @@ apply_system_font (GtkInspectorCssEditor *ce)
   g_object_unref (s);
 }
 
-static gchar *
-get_current_text (GtkTextBuffer *buffer)
-{
-  GtkTextIter start, end;
-
-  gtk_text_buffer_get_start_iter (buffer, &start);
-  gtk_text_buffer_get_end_iter (buffer, &end);
-  gtk_text_buffer_remove_all_tags (buffer, &start, &end);
-
-  return gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
-}
-
 static void
 text_changed (GtkTextBuffer         *buffer,
               GtkInspectorCssEditor *ce)
@@ -291,6 +357,7 @@ gtk_inspector_css_editor_class_init (GtkInspectorCssEditorClass *klass)
   gtk_widget_class_bind_template_child_private (widget_class, GtkInspectorCssEditor, view);
   gtk_widget_class_bind_template_child_private (widget_class, GtkInspectorCssEditor, disable_button);
   gtk_widget_class_bind_template_callback (widget_class, disable_toggled);
+  gtk_widget_class_bind_template_callback (widget_class, save_clicked);
   gtk_widget_class_bind_template_callback (widget_class, text_changed);
 }
 
diff --git a/gtk/inspector/css-editor.ui b/gtk/inspector/css-editor.ui
index 0c18d3c..baad7f8 100644
--- a/gtk/inspector/css-editor.ui
+++ b/gtk/inspector/css-editor.ui
@@ -30,6 +30,14 @@
             <signal name="toggled" handler="disable_toggled"/>
           </object>
         </child>
+        <child>
+          <object class="GtkToolButton" id="save_button">
+            <property name="visible">True</property>
+            <property name="icon-name">document-save-symbolic</property>
+            <property name="tooltip-text" translatable="yes">Save the current CSS</property>
+            <signal name="clicked" handler="save_clicked"/>
+          </object>
+        </child>
       </object>
     </child>
     <child>