[gnome-builder] spellcheck: add GbpSpellNavigator



commit 66ab0c20788fe029d1f5de7492e81f5fc72b9454
Author: Christian Hergert <chergert redhat com>
Date:   Sat Jul 15 21:57:13 2017 -0700

    spellcheck: add GbpSpellNavigator
    
    This brings back the IdeEditorSpellNavigator in it's new
    namespace. Some fixups and style changes happened along the way.

 plugins/spellcheck/gbp-spell-navigator.c |  637 ++++++++++++++++++++++++++++++
 plugins/spellcheck/gbp-spell-navigator.h |   35 ++
 plugins/spellcheck/meson.build           |    2 +
 3 files changed, 674 insertions(+), 0 deletions(-)
---
diff --git a/plugins/spellcheck/gbp-spell-navigator.c b/plugins/spellcheck/gbp-spell-navigator.c
new file mode 100644
index 0000000..66daaf7
--- /dev/null
+++ b/plugins/spellcheck/gbp-spell-navigator.c
@@ -0,0 +1,637 @@
+/* gbp-spell-navigator.c
+ *
+ * Copyright (C) 2016 Sebastien Lafargue <slafargue gnome org>
+ *
+ * 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/>.
+
+ * This code is a modification of:
+ * https://git.gnome.org/browse/gspell/tree/gspell/gspell-navigator-text-view.c
+ */
+
+#include <glib/gi18n.h>
+#include <ide.h>
+
+#include "gbp-spell-navigator.h"
+#include "gbp-spell-utils.h"
+
+#define SPELLCHECKER_SUBREGION_LENGTH 500
+
+struct _GbpSpellNavigator
+{
+  GObject          parent_instance;
+
+  GtkTextView     *view;
+  GtkTextBuffer   *buffer;
+
+  GHashTable      *words_count;
+  GtkTextMark     *start_boundary;
+  GtkTextMark     *end_boundary;
+  GtkTextMark     *word_start;
+  GtkTextMark     *word_end;
+
+  guint            words_counted : 1;
+};
+
+static void gspell_navigator_iface_init (GspellNavigatorInterface *iface);
+
+G_DEFINE_TYPE_WITH_CODE (GbpSpellNavigator, gbp_spell_navigator, G_TYPE_INITIALLY_UNOWNED,
+                         G_IMPLEMENT_INTERFACE (GSPELL_TYPE_NAVIGATOR, gspell_navigator_iface_init))
+
+enum {
+  PROP_0,
+  PROP_VIEW,
+  PROP_WORDS_COUNTED,
+  N_PROPS
+};
+
+static GParamSpec *properties [N_PROPS];
+
+typedef struct
+{
+  GbpSpellNavigator    *navigator;
+  GtkSourceRegion      *words_count_region;
+  GtkSourceRegionIter   iter;
+} WordsCountState;
+
+static void
+words_count_state_free (gpointer user_data)
+{
+  WordsCountState *state = user_data;
+
+  g_clear_object (&state->navigator);
+  g_clear_object (&state->words_count_region);
+  g_slice_free (WordsCountState, state);
+}
+
+static gboolean
+gbp_spell_navigator_words_count_cb (WordsCountState *state)
+{
+  GbpSpellNavigator *self = state->navigator;
+  GtkTextTag *no_spell_check_tag;
+  GtkTextIter begin;
+  GtkTextIter end;
+  GtkTextIter word_start;
+  GtkTextIter word_end;
+  gchar *word;
+  guint count;
+
+  g_assert (GBP_IS_SPELL_NAVIGATOR (self));
+
+  no_spell_check_tag = gbp_spell_utils_get_no_spell_check_tag (self->buffer);
+
+  if (gtk_source_region_iter_get_subregion (&state->iter, &begin, &end))
+    {
+      word_start = word_end = begin;
+
+      while (TRUE)
+        {
+          if (!gbp_spell_utils_text_iter_starts_word (&word_start))
+            {
+              GtkTextIter iter;
+
+              iter = word_start;
+              gbp_spell_utils_text_iter_forward_word_end (&word_start);
+              if (gtk_text_iter_equal (&iter, &word_start))
+                break;
+
+              gbp_spell_utils_text_iter_backward_word_start (&word_start);
+            }
+
+          if (!gbp_spell_utils_skip_no_spell_check (no_spell_check_tag, &word_start, &end))
+            break;
+
+          word_end = word_start;
+          gbp_spell_utils_text_iter_forward_word_end (&word_end);
+          if (gtk_text_iter_compare (&word_end, &end) >= 0)
+            break;
+
+          word = gtk_text_buffer_get_text (self->buffer, &word_start, &word_end, FALSE);
+
+          count = GPOINTER_TO_UINT (g_hash_table_lookup (self->words_count, word));
+          count++;
+
+          g_hash_table_insert (self->words_count, word, GUINT_TO_POINTER (count));
+
+          word_start = word_end;
+        }
+
+      if (gtk_source_region_iter_next (&state->iter))
+        return G_SOURCE_CONTINUE;
+    }
+
+  self->words_counted = TRUE;
+
+  g_object_notify_by_pspec (G_OBJECT (self), properties [PROP_WORDS_COUNTED]);
+
+  return G_SOURCE_REMOVE;
+}
+
+/* Always process start and end by init_boudaries before */
+static GHashTable *
+gbp_spell_navigator_count_words (GbpSpellNavigator *self,
+                                        GtkTextIter             *start,
+                                        GtkTextIter             *end)
+{
+  GHashTable *table;
+  GtkSourceRegion *words_count_region;
+  WordsCountState *state;
+  GtkTextIter start_subregion;
+  GtkTextIter end_subregion;
+  gint line_start;
+  gint line_end;
+  gint nb_subregion;
+
+  g_assert (GBP_IS_SPELL_NAVIGATOR (self));
+  g_assert (start != NULL);
+  g_assert (end != NULL);
+
+  words_count_region = gtk_source_region_new (self->buffer);
+  line_start = gtk_text_iter_get_line (start);
+  line_end = gtk_text_iter_get_line (end);
+  nb_subregion = (line_end - line_start + 1) / SPELLCHECKER_SUBREGION_LENGTH;
+
+  if (nb_subregion > 1)
+    {
+      for (gint i = 0; i < nb_subregion; ++i)
+        {
+          line_end = line_start + SPELLCHECKER_SUBREGION_LENGTH - 1;
+          gtk_text_buffer_get_iter_at_line_offset (self->buffer, &start_subregion, line_start, 0);
+          gtk_text_buffer_get_iter_at_line_offset (self->buffer, &end_subregion, line_end, 0);
+          if (!gtk_text_iter_ends_line (&end_subregion))
+            gtk_text_iter_forward_to_line_end (&end_subregion);
+
+          gtk_source_region_add_subregion (words_count_region, &start_subregion, &end_subregion);
+          line_start = line_end + 1;
+        }
+    }
+
+  gtk_text_buffer_get_iter_at_line_offset (self->buffer, &start_subregion, line_start, 0);
+  gtk_source_region_add_subregion (words_count_region, &start_subregion, end);
+
+  table = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
+
+  state = g_slice_new0 (WordsCountState);
+  state->navigator = g_object_ref (self);
+  state->words_count_region = words_count_region;
+  gtk_source_region_get_start_region_iter (words_count_region, &state->iter);
+
+  g_idle_add_full (G_PRIORITY_LOW,
+                   (GSourceFunc)gbp_spell_navigator_words_count_cb,
+                   state,
+                   (GDestroyNotify)words_count_state_free);
+
+  return table;
+}
+
+gboolean
+gbp_spell_navigator_get_is_words_counted (GbpSpellNavigator *self)
+{
+  g_assert (GBP_IS_SPELL_NAVIGATOR (self));
+
+  return self->words_counted;
+}
+
+guint
+gbp_spell_navigator_get_count (GbpSpellNavigator *self,
+                               const gchar       *word)
+{
+  g_assert (GBP_IS_SPELL_NAVIGATOR (self));
+
+  if (self->words_count == NULL || ide_str_empty0 (word))
+    return 0;
+  else
+    return GPOINTER_TO_UINT (g_hash_table_lookup (self->words_count, word));
+}
+
+GspellNavigator *
+gbp_spell_navigator_new (GtkTextView *view)
+{
+  return g_object_new (GBP_TYPE_SPELL_NAVIGATOR,
+                       "view", view,
+                       NULL);
+}
+
+static void
+delete_mark (GtkTextBuffer  *buffer,
+             GtkTextMark   **mark)
+{
+  if (mark != NULL && *mark != NULL)
+    {
+      GtkTextMark *m = g_steal_pointer (mark);
+      gtk_text_buffer_delete_mark (buffer, m);
+    }
+}
+
+static void
+gbp_spell_navigator_dispose (GObject *object)
+{
+  GbpSpellNavigator *self = (GbpSpellNavigator *)object;
+
+  ide_source_view_set_misspelled_word (IDE_SOURCE_VIEW (self->view), NULL, NULL);
+  gtk_widget_queue_resize (GTK_WIDGET (self->view));
+
+  g_clear_object (&self->view);
+  g_clear_pointer (&self->words_count, g_hash_table_unref);
+
+  if (self->buffer != NULL)
+    {
+      delete_mark (self->buffer, &self->start_boundary);
+      delete_mark (self->buffer, &self->end_boundary);
+      delete_mark (self->buffer, &self->word_start);
+      delete_mark (self->buffer, &self->word_end);
+      g_clear_object (&self->buffer);
+    }
+
+  G_OBJECT_CLASS (gbp_spell_navigator_parent_class)->dispose (object);
+}
+
+static void
+init_boundaries (GbpSpellNavigator *self)
+{
+  GtkTextIter start;
+  GtkTextIter end;
+
+  g_assert (GBP_IS_SPELL_NAVIGATOR (self));
+  g_assert (self->start_boundary == NULL);
+  g_assert (self->end_boundary == NULL);
+
+  if (!gtk_text_buffer_get_selection_bounds (self->buffer, &start, &end))
+    gtk_text_buffer_get_bounds (self->buffer, &start, &end);
+
+  if (gbp_spell_utils_text_iter_inside_word (&start) &&
+      !gbp_spell_utils_text_iter_starts_word (&start))
+    gbp_spell_utils_text_iter_backward_word_start (&start);
+
+  if (gbp_spell_utils_text_iter_inside_word (&end))
+    gbp_spell_utils_text_iter_forward_word_end (&end);
+
+  self->start_boundary = gtk_text_buffer_create_mark (self->buffer, NULL, &start, TRUE);
+  self->end_boundary = gtk_text_buffer_create_mark (self->buffer, NULL, &end, FALSE);
+}
+
+static void
+set_view (GbpSpellNavigator *self,
+          GtkTextView       *view)
+{
+  GtkTextIter start;
+  GtkTextIter end;
+
+  g_assert (GBP_IS_SPELL_NAVIGATOR (self));
+  g_assert (self->view == NULL);
+  g_assert (self->buffer == NULL);
+
+  if (view != self->view)
+    {
+      self->view = g_object_ref (view);
+      self->buffer = g_object_ref (gtk_text_view_get_buffer (view));
+
+      init_boundaries (self);
+
+      gtk_text_buffer_get_iter_at_mark (self->buffer, &start, self->start_boundary);
+      gtk_text_buffer_get_iter_at_mark (self->buffer, &end, self->end_boundary);
+      self->words_count = gbp_spell_navigator_count_words (self, &start, &end);
+
+      g_object_notify (G_OBJECT (self), "view");
+    }
+}
+
+static void
+gbp_spell_navigator_set_property (GObject      *object,
+                                  guint         prop_id,
+                                  const GValue *value,
+                                  GParamSpec   *pspec)
+{
+  GbpSpellNavigator *self = GBP_SPELL_NAVIGATOR (object);
+
+  switch (prop_id)
+    {
+    case PROP_VIEW:
+      set_view (self, g_value_get_object (value));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static void
+gbp_spell_navigator_get_property (GObject    *object,
+                                  guint       prop_id,
+                                  GValue     *value,
+                                  GParamSpec *pspec)
+{
+  GbpSpellNavigator *self = GBP_SPELL_NAVIGATOR (object);
+
+  switch (prop_id)
+    {
+    case PROP_VIEW:
+      g_value_set_object (value, self->view);
+      break;
+
+    case PROP_WORDS_COUNTED:
+      g_value_set_boolean (value, self->words_counted);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static void
+gbp_spell_navigator_class_init (GbpSpellNavigatorClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->dispose = gbp_spell_navigator_dispose;
+  object_class->get_property = gbp_spell_navigator_get_property;
+  object_class->set_property = gbp_spell_navigator_set_property;
+
+  properties [PROP_VIEW] =
+    g_param_spec_object ("view",
+                        "View",
+                        "the view",
+                        GTK_TYPE_TEXT_VIEW,
+                        G_PARAM_READWRITE |
+                        G_PARAM_CONSTRUCT_ONLY |
+                        G_PARAM_STATIC_STRINGS);
+
+  properties [PROP_WORDS_COUNTED] =
+    g_param_spec_boolean ("words-counted",
+                          "words-counted",
+                          "words-counted",
+                          FALSE,
+                          (G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+
+  g_object_class_install_properties (object_class, N_PROPS, properties);
+}
+
+static void
+gbp_spell_navigator_init (GbpSpellNavigator *self)
+{
+}
+
+static void
+select_misspelled_word (GbpSpellNavigator *self)
+{
+  GtkTextIter word_start;
+  GtkTextIter word_end;
+
+  g_assert (GBP_IS_SPELL_NAVIGATOR (self));
+
+  gtk_text_buffer_get_iter_at_mark (self->buffer, &word_start, self->word_start);
+  gtk_text_buffer_get_iter_at_mark (self->buffer, &word_end, self->word_end);
+
+  ide_source_view_set_misspelled_word (IDE_SOURCE_VIEW (self->view), &word_start, &word_end);
+  gtk_widget_queue_draw (GTK_WIDGET (self->view));
+
+  g_return_if_fail (gtk_text_view_get_buffer (self->view) == self->buffer);
+
+  gtk_text_view_scroll_to_mark (self->view,
+                                self->word_start,
+                                0.25,
+                                FALSE,
+                                0.0,
+                                0.0);
+}
+
+/* Go to the start of the current checked word so that
+ * we can re-check it again, change of language for example
+ */
+gboolean
+gbp_spell_navigator_goto_word_start (GbpSpellNavigator *self)
+{
+  GtkTextIter start;
+
+  g_assert (GBP_IS_SPELL_NAVIGATOR (self));
+
+  if (self->word_start != NULL)
+    {
+      gtk_text_buffer_get_iter_at_mark (self->buffer, &start, self->word_start);
+      gtk_text_buffer_move_mark (self->buffer, self->word_end, &start);
+
+      return TRUE;
+    }
+
+  return FALSE;
+}
+
+static gboolean
+gbp_spell_navigator_goto_next (GspellNavigator  *navigator,
+                               gchar           **word_p,
+                               GspellChecker   **spell_checker_p,
+                               GError          **error_p)
+{
+  GbpSpellNavigator *self = (GbpSpellNavigator *)navigator;
+  GspellTextBuffer *gspell_buffer;
+  GspellChecker *spell_checker;
+  GtkTextIter word_start;
+  GtkTextIter end;
+  GtkTextTag *no_spell_check_tag;
+
+  g_assert (GBP_IS_SPELL_NAVIGATOR (self));
+  g_assert ((self->word_start == NULL && self->word_end == NULL) ||
+            (self->word_start != NULL && self->word_end != NULL));
+
+  gspell_buffer = gspell_text_buffer_get_from_gtk_text_buffer (self->buffer);
+  spell_checker = gspell_text_buffer_get_spell_checker (gspell_buffer);
+
+  if (spell_checker == NULL)
+    return FALSE;
+
+  if (gspell_checker_get_language (spell_checker) == NULL)
+    {
+      if (spell_checker_p != NULL)
+        *spell_checker_p = g_object_ref (spell_checker);
+
+      g_set_error (error_p,
+                   GSPELL_CHECKER_ERROR,
+                   GSPELL_CHECKER_ERROR_NO_LANGUAGE_SET,
+                   "%s",
+                   _("No language set. Check your dictionary installation."));
+
+      return FALSE;
+    }
+
+  gtk_text_buffer_get_iter_at_mark (self->buffer, &end, self->end_boundary);
+
+  if (self->word_start == NULL)
+    {
+      GtkTextIter start;
+
+      gtk_text_buffer_get_iter_at_mark (self->buffer, &start, self->start_boundary);
+
+      self->word_start = gtk_text_buffer_create_mark (self->buffer, NULL, &start, TRUE);
+      self->word_end = gtk_text_buffer_create_mark (self->buffer, NULL, &start, FALSE);
+
+      word_start = start;
+    }
+  else
+    {
+      GtkTextIter word_end;
+
+      gtk_text_buffer_get_iter_at_mark (self->buffer, &word_end, self->word_end);
+
+      if (gtk_text_iter_compare (&end, &word_end) <= 0)
+        return FALSE;
+
+      word_start = word_end;
+    }
+
+  no_spell_check_tag = gbp_spell_utils_get_no_spell_check_tag (self->buffer);
+
+  while (TRUE)
+    {
+      GtkTextIter word_end;
+      g_autofree gchar *word = NULL;
+      gboolean correctly_spelled;
+      GError *error = NULL;
+
+      if (!gbp_spell_utils_text_iter_starts_word (&word_start))
+        {
+          GtkTextIter iter;
+
+          iter = word_start;
+          gbp_spell_utils_text_iter_forward_word_end (&word_start);
+
+          if (gtk_text_iter_equal (&iter, &word_start))
+            return FALSE;
+
+          gbp_spell_utils_text_iter_backward_word_start (&word_start);
+        }
+
+        if (!gbp_spell_utils_skip_no_spell_check (no_spell_check_tag, &word_start, &end))
+          return FALSE;
+
+        g_return_val_if_fail (gbp_spell_utils_text_iter_starts_word (&word_start), FALSE);
+
+        word_end = word_start;
+        gbp_spell_utils_text_iter_forward_word_end (&word_end);
+
+        if (gtk_text_iter_compare (&end, &word_end) < 0)
+          return FALSE;
+
+        word = gtk_text_buffer_get_text (self->buffer, &word_start, &word_end, FALSE);
+        correctly_spelled = gspell_checker_check_word (spell_checker, word, -1, &error);
+
+        if (error != NULL)
+          {
+            g_propagate_error (error_p, error);
+            return FALSE;
+          }
+
+        if (!correctly_spelled)
+          {
+            /* Found! */
+            gtk_text_buffer_move_mark (self->buffer, self->word_start, &word_start);
+            gtk_text_buffer_move_mark (self->buffer, self->word_end, &word_end);
+            select_misspelled_word (self);
+
+            if (spell_checker_p != NULL)
+              *spell_checker_p = g_object_ref (spell_checker);
+
+            if (word_p != NULL)
+              *word_p = g_steal_pointer (&word);
+
+            return TRUE;
+         }
+
+        word_start = word_end;
+    }
+
+  return FALSE;
+}
+
+static void
+gbp_spell_navigator_change (GspellNavigator *navigator,
+                            const gchar     *word,
+                            const gchar     *change_to)
+{
+  GbpSpellNavigator *self = (GbpSpellNavigator *)navigator;
+  GtkTextIter word_start;
+  GtkTextIter word_end;
+  g_autofree gchar *word_in_buffer = NULL;
+
+  g_assert (GBP_IS_SPELL_NAVIGATOR (self));
+  g_assert (GTK_IS_TEXT_MARK (self->word_start));
+  g_assert (GTK_IS_TEXT_MARK (self->word_end));
+
+  gtk_text_buffer_get_iter_at_mark (self->buffer, &word_start, self->word_start);
+  gtk_text_buffer_get_iter_at_mark (self->buffer, &word_end, self->word_end);
+
+  word_in_buffer = gtk_text_buffer_get_slice (self->buffer, &word_start, &word_end, TRUE);
+  g_return_if_fail (word_in_buffer != NULL);
+  g_return_if_fail (g_strcmp0 (word_in_buffer, word) == 0);
+
+  gtk_text_buffer_begin_user_action (self->buffer);
+
+  gtk_text_buffer_delete (self->buffer, &word_start, &word_end);
+  gtk_text_buffer_insert (self->buffer, &word_start, change_to, -1);
+
+  gtk_text_buffer_end_user_action (self->buffer);
+}
+
+static void
+gbp_spell_navigator_change_all (GspellNavigator *navigator,
+                                const gchar     *word,
+                                const gchar     *change_to)
+{
+  GbpSpellNavigator *self = (GbpSpellNavigator *)navigator;
+  GtkTextIter iter;
+
+  g_assert (GBP_IS_SPELL_NAVIGATOR (self));
+  g_assert (GTK_IS_TEXT_MARK (self->start_boundary));
+  g_assert (GTK_IS_TEXT_MARK (self->end_boundary));
+
+  gtk_text_buffer_get_iter_at_mark (self->buffer, &iter, self->start_boundary);
+  gtk_text_buffer_begin_user_action (self->buffer);
+
+  while (TRUE)
+    {
+      gboolean found;
+      GtkTextIter match_start;
+      GtkTextIter match_end;
+      GtkTextIter limit;
+
+      gtk_text_buffer_get_iter_at_mark (self->buffer, &limit, self->end_boundary);
+      found = gtk_text_iter_forward_search (&iter,
+                                            word,
+                                            GTK_TEXT_SEARCH_VISIBLE_ONLY |
+                                            GTK_TEXT_SEARCH_TEXT_ONLY,
+                                            &match_start,
+                                            &match_end,
+                                            &limit);
+
+      if (!found)
+        break;
+
+      if (gbp_spell_utils_text_iter_starts_word (&match_start) &&
+          gbp_spell_utils_text_iter_ends_word (&match_end))
+        {
+          gtk_text_buffer_delete (self->buffer, &match_start, &match_end);
+          gtk_text_buffer_insert (self->buffer, &match_end, change_to, -1);
+        }
+
+      iter = match_end;
+    }
+
+  gtk_text_buffer_end_user_action (self->buffer);
+}
+
+static void
+gspell_navigator_iface_init (GspellNavigatorInterface *iface)
+{
+  iface->goto_next = gbp_spell_navigator_goto_next;
+  iface->change = gbp_spell_navigator_change;
+  iface->change_all = gbp_spell_navigator_change_all;
+}
diff --git a/plugins/spellcheck/gbp-spell-navigator.h b/plugins/spellcheck/gbp-spell-navigator.h
new file mode 100644
index 0000000..fc32fe1
--- /dev/null
+++ b/plugins/spellcheck/gbp-spell-navigator.h
@@ -0,0 +1,35 @@
+/* gbp-spell-navigator.h
+ *
+ * Copyright (C) 2016 Sebastien Lafargue <slafargue gnome org>
+ *
+ * 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/>.
+ */
+
+#pragma once
+
+#include <gspell/gspell.h>
+
+G_BEGIN_DECLS
+
+#define GBP_TYPE_SPELL_NAVIGATOR (gbp_spell_navigator_get_type())
+
+G_DECLARE_FINAL_TYPE (GbpSpellNavigator, gbp_spell_navigator, GBP, SPELL_NAVIGATOR, GInitiallyUnowned)
+
+GspellNavigator *gbp_spell_navigator_new                   (GtkTextView       *view);
+guint            gbp_spell_navigator_get_count             (GbpSpellNavigator *self,
+                                                            const gchar       *word);
+gboolean         gbp_spell_navigator_get_is_words_counted  (GbpSpellNavigator *self);
+gboolean         gbp_spell_navigator_goto_word_start       (GbpSpellNavigator *self);
+
+G_END_DECLS
diff --git a/plugins/spellcheck/meson.build b/plugins/spellcheck/meson.build
index 76fa89c..e8c3abb 100644
--- a/plugins/spellcheck/meson.build
+++ b/plugins/spellcheck/meson.build
@@ -18,6 +18,8 @@ spellcheck_sources = [
   'gbp-spell-editor-view-addin.h',
   'gbp-spell-language-popover.c',
   'gbp-spell-language-popover.h',
+  'gbp-spell-navigator.c',
+  'gbp-spell-navigator.h',
   'gbp-spell-utils.c',
   'gbp-spell-utils.h',
   spellcheck_resources[0],


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