[gnome-builder] quick-highlight: add preference in Editor section

[Christian Hergert <chergert src gnome org>]

commit 52ba38f0deb68cade223423ecfd2e4dfd42abf48
Author: Christian Hergert <chergert redhat com>
Date:   Sat Aug 27 12:44:53 2016 -0700

    quick-highlight: add preference in Editor section
    
    This allows us to enable/disable the feature of the plugin without
    unloading the plugin.

 plugins/quick-highlight/Makefile.am                |    2 +
 .../quick-highlight/gbp-quick-highlight-plugin.c   |    4 +
 .../gbp-quick-highlight-preferences.c              |   86 ++++++++++++++++++++
 .../gbp-quick-highlight-preferences.h              |   32 +++++++
 .../gbp-quick-highlight-view-addin.c               |   49 +++++++++++
 5 files changed, 173 insertions(+), 0 deletions(-)
---
diff --git a/plugins/quick-highlight/Makefile.am b/plugins/quick-highlight/Makefile.am
index f067efd..e8c8ebd 100644
--- a/plugins/quick-highlight/Makefile.am
+++ b/plugins/quick-highlight/Makefile.am
@@ -10,6 +10,8 @@ libquick_highlight_plugin_la_SOURCES = \
        gbp-quick-highlight-plugin.c \
        gbp-quick-highlight-view-addin.c \
        gbp-quick-highlight-view-addin.h \
+       gbp-quick-highlight-preferences.c \
+       gbp-quick-highlight-preferences.h \
        $(NULL)
 
 libquick_highlight_plugin_la_CFLAGS = $(PLUGIN_CFLAGS)
diff --git a/plugins/quick-highlight/gbp-quick-highlight-plugin.c 
b/plugins/quick-highlight/gbp-quick-highlight-plugin.c
index d359ca3..1d38adb 100644
--- a/plugins/quick-highlight/gbp-quick-highlight-plugin.c
+++ b/plugins/quick-highlight/gbp-quick-highlight-plugin.c
@@ -20,6 +20,7 @@
 #include <ide.h>
 
 #include "gbp-quick-highlight-view-addin.h"
+#include "gbp-quick-highlight-preferences.h"
 
 void
 peas_register_types (PeasObjectModule *module)
@@ -27,4 +28,7 @@ peas_register_types (PeasObjectModule *module)
   peas_object_module_register_extension_type (module,
                                               IDE_TYPE_EDITOR_VIEW_ADDIN,
                                               GBP_TYPE_QUICK_HIGHLIGHT_VIEW_ADDIN);
+  peas_object_module_register_extension_type (module,
+                                              IDE_TYPE_PREFERENCES_ADDIN,
+                                              GBP_TYPE_QUICK_HIGHLIGHT_PREFERENCES);
 }
diff --git a/plugins/quick-highlight/gbp-quick-highlight-preferences.c 
b/plugins/quick-highlight/gbp-quick-highlight-preferences.c
new file mode 100644
index 0000000..0f57c08
--- /dev/null
+++ b/plugins/quick-highlight/gbp-quick-highlight-preferences.c
@@ -0,0 +1,86 @@
+/* gbp-quick-highlight-preferences.c
+ *
+ * Copyright (C) 2016 Christian Hergert <chergert redhat com>
+ *
+ * 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 3 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/>.
+ */
+
+#define G_LOG_DOMAIN "gbp-quick-highlight-preferences"
+
+#include <glib/gi18n.h>
+
+#include "gbp-quick-highlight-preferences.h"
+
+struct _GbpQuickHighlightPreferences
+{
+  GObject parent_instance;
+  guint   enable_switch;
+};
+
+static void
+gbp_quick_highlight_preferences_load (IdePreferencesAddin *addin,
+                                      IdePreferences      *preferences)
+{
+  GbpQuickHighlightPreferences *self = (GbpQuickHighlightPreferences *)addin;
+
+  g_assert (IDE_IS_PREFERENCES_ADDIN (self));
+  g_assert (IDE_IS_PREFERENCES (preferences));
+
+  self->enable_switch =
+    ide_preferences_add_switch (preferences,
+                                "editor",
+                                "highlight",
+                                "org.gnome.builder.extension-type",
+                                "enabled",
+                                
"/org/gnome/builder/extension-types/quick-highlight-plugin/GbpQuickHighlightViewAddin/",
+                                NULL,
+                                _("Words matching selection"),
+                                _("Highlight all occurrences of words matching the current selection"),
+                                /* Translators: the following are keywords used for searching to locate this 
preference */
+                                _("quick highlight words matching current selection"),
+                                10);
+}
+
+static void
+gbp_quick_highlight_preferences_unload (IdePreferencesAddin *addin,
+                                        IdePreferences      *preferences)
+{
+  GbpQuickHighlightPreferences *self = (GbpQuickHighlightPreferences *)addin;
+
+  g_assert (IDE_IS_PREFERENCES_ADDIN (self));
+  g_assert (IDE_IS_PREFERENCES (preferences));
+
+  ide_preferences_remove_id (preferences, self->enable_switch);
+  self->enable_switch = 0;
+}
+
+static void
+preferences_addin_iface_init (IdePreferencesAddinInterface *iface)
+{
+  iface->load = gbp_quick_highlight_preferences_load;
+  iface->unload = gbp_quick_highlight_preferences_unload;
+}
+
+G_DEFINE_TYPE_EXTENDED (GbpQuickHighlightPreferences, gbp_quick_highlight_preferences, G_TYPE_OBJECT, 0,
+                        G_IMPLEMENT_INTERFACE (IDE_TYPE_PREFERENCES_ADDIN, preferences_addin_iface_init))
+
+static void
+gbp_quick_highlight_preferences_class_init (GbpQuickHighlightPreferencesClass *klass)
+{
+}
+
+static void
+gbp_quick_highlight_preferences_init (GbpQuickHighlightPreferences *self)
+{
+}
diff --git a/plugins/quick-highlight/gbp-quick-highlight-preferences.h 
b/plugins/quick-highlight/gbp-quick-highlight-preferences.h
new file mode 100644
index 0000000..30c4c95
--- /dev/null
+++ b/plugins/quick-highlight/gbp-quick-highlight-preferences.h
@@ -0,0 +1,32 @@
+/* gbp-quick-highlight-preferences.h
+ *
+ * Copyright (C) 2016 Christian Hergert <chergert redhat com>
+ *
+ * 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 3 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/>.
+ */
+
+#ifndef GBP_QUICK_HIGHLIGHT_PREFERENCES_H
+#define GBP_QUICK_HIGHLIGHT_PREFERENCES_H
+
+#include <ide.h>
+
+G_BEGIN_DECLS
+
+#define GBP_TYPE_QUICK_HIGHLIGHT_PREFERENCES (gbp_quick_highlight_preferences_get_type())
+
+G_DECLARE_FINAL_TYPE (GbpQuickHighlightPreferences, gbp_quick_highlight_preferences, GBP, 
QUICK_HIGHLIGHT_PREFERENCES, GObject)
+
+G_END_DECLS
+
+#endif /* GBP_QUICK_HIGHLIGHT_PREFERENCES_H */
diff --git a/plugins/quick-highlight/gbp-quick-highlight-view-addin.c 
b/plugins/quick-highlight/gbp-quick-highlight-view-addin.c
index 428593c..4a8da14 100644
--- a/plugins/quick-highlight/gbp-quick-highlight-view-addin.c
+++ b/plugins/quick-highlight/gbp-quick-highlight-view-addin.c
@@ -30,9 +30,13 @@ struct _GbpQuickHighlightViewAddin
 
   GtkSourceSearchContext  *search_context;
   GtkSourceSearchSettings *search_settings;
+  GSettings               *settings;
 
   gulong                   notify_style_scheme_handler;
   gulong                   mark_set_handler;
+  gulong                   changed_enabled_handler;
+
+  guint                    enabled : 1;
 };
 
 static void editor_view_addin_iface_init (IdeEditorViewAddinInterface *iface);
@@ -131,6 +135,36 @@ gbp_quick_highlight_view_addin_match (GtkTextBuffer *buffer,
 }
 
 static void
+gbp_quick_highlight_view_addin_enabled_changed (GbpQuickHighlightViewAddin *self,
+                                                const gchar                *key,
+                                                GSettings                  *settings)
+{
+  IdeBuffer *buffer;
+  gboolean enabled;
+
+  g_assert (GBP_IS_QUICK_HIGHLIGHT_VIEW_ADDIN (self));
+  g_assert (G_IS_SETTINGS (settings));
+
+  buffer = ide_editor_view_get_document (self->editor_view);
+  enabled = g_settings_get_boolean (settings, "enabled");
+
+  if (!self->enabled && enabled)
+    {
+      g_signal_handler_unblock (buffer, self->notify_style_scheme_handler);
+      g_signal_handler_unblock (buffer, self->mark_set_handler);
+    }
+  else if (self->enabled && !enabled)
+    {
+      g_signal_handler_block (buffer, self->notify_style_scheme_handler);
+      g_signal_handler_block (buffer, self->mark_set_handler);
+      gtk_source_search_settings_set_search_text (self->search_settings, NULL);
+      gtk_source_search_context_set_highlight (self->search_context, FALSE);
+    }
+
+  self->enabled = enabled;
+}
+
+static void
 gbp_quick_highlight_view_addin_load (IdeEditorViewAddin *addin,
                                      IdeEditorView      *view)
 {
@@ -178,6 +212,19 @@ gbp_quick_highlight_view_addin_load (IdeEditorViewAddin *addin,
                              G_CALLBACK (gbp_quick_highlight_view_addin_match),
                              self,
                              G_CONNECT_AFTER);
+
+  /* Use conventions from IdeExtensionSetAdapter */
+  self->settings = g_settings_new_with_path ("org.gnome.builder.extension-type",
+                                             
"/org/gnome/builder/extension-types/quick-highlight-plugin/GbpQuickHighlightViewAddin/");
+
+  self->changed_enabled_handler =
+    g_signal_connect_object (self->settings,
+                             "changed::enabled",
+                             G_CALLBACK (gbp_quick_highlight_view_addin_enabled_changed),
+                             self,
+                             G_CONNECT_SWAPPED);
+
+  self->enabled = TRUE;
 }
 
 static void
@@ -195,9 +242,11 @@ gbp_quick_highlight_view_addin_unload (IdeEditorViewAddin *addin,
 
   g_signal_handler_disconnect (buffer, self->notify_style_scheme_handler);
   g_signal_handler_disconnect (buffer, self->mark_set_handler);
+  g_signal_handler_disconnect (self->settings, self->changed_enabled_handler);
 
   g_clear_object (&self->search_settings);
   g_clear_object (&self->search_context);
+  g_clear_object (&self->settings);
 
   self->editor_view = NULL;
 }