[gnome-builder] git: start on some basic search functionality using git index

[Christian Hergert <chergert src gnome org>]

commit 5832f285852b7275abd39a9365cad519a95a99fa
Author: Christian Hergert <christian hergert me>
Date:   Sun Dec 14 16:39:55 2014 -0800

    git: start on some basic search functionality using git index

 src/git/gb-git-search-provider.c |   70 ++++++++++++++++++++++++++++++++++++-
 src/search/gb-search-context.c   |   17 +++++++--
 src/search/gb-search-context.h   |   19 +++++-----
 3 files changed, 92 insertions(+), 14 deletions(-)
---
diff --git a/src/git/gb-git-search-provider.c b/src/git/gb-git-search-provider.c
index 1a0c6fe..fb4e2de 100644
--- a/src/git/gb-git-search-provider.c
+++ b/src/git/gb-git-search-provider.c
@@ -23,6 +23,10 @@
 #include "fuzzy.h"
 #include "gb-git-search-provider.h"
 #include "gb-log.h"
+#include "gb-search-context.h"
+#include "gb-search-result.h"
+
+#define GB_GIT_SEARCH_PROVIDER_MAX_MATCHES 1000
 
 struct _GbGitSearchProviderPrivate
 {
@@ -30,8 +34,15 @@ struct _GbGitSearchProviderPrivate
   Fuzzy          *file_index;
 };
 
-G_DEFINE_TYPE_WITH_PRIVATE (GbGitSearchProvider, gb_git_search_provider,
-                            G_TYPE_OBJECT)
+static void search_provider_init (GbSearchProviderInterface *iface);
+
+G_DEFINE_TYPE_EXTENDED (GbGitSearchProvider,
+                        gb_git_search_provider,
+                        G_TYPE_OBJECT,
+                        0,
+                        G_ADD_PRIVATE (GbGitSearchProvider)
+                        G_IMPLEMENT_INTERFACE (GB_TYPE_SEARCH_PROVIDER,
+                                               search_provider_init))
 
 enum {
   PROP_0,
@@ -122,6 +133,55 @@ cleanup:
   EXIT;
 }
 
+static void
+gb_git_search_provider_populate (GbSearchProvider *provider,
+                                 GbSearchContext  *context,
+                                 GCancellable     *cancellable)
+{
+  GbGitSearchProvider *self = (GbGitSearchProvider *)provider;
+  GList *list = NULL;
+
+  g_return_if_fail (GB_IS_GIT_SEARCH_PROVIDER (self));
+  g_return_if_fail (GB_IS_SEARCH_CONTEXT (context));
+  g_return_if_fail (!cancellable || G_IS_CANCELLABLE (cancellable));
+
+  if (self->priv->file_index)
+    {
+      const gchar *search_text;
+      GArray *matches;
+      guint i;
+
+      search_text = gb_search_context_get_search_text (context);
+      matches = fuzzy_match (self->priv->file_index, search_text,
+                             GB_GIT_SEARCH_PROVIDER_MAX_MATCHES);
+
+      for (i = 0; i < matches->len; i++)
+        {
+          FuzzyMatch *match;
+          GtkWidget *widget;
+          GtkWidget *child;
+
+          match = &g_array_index (matches, FuzzyMatch, i);
+
+          /* TODO: Make a git file search result */
+          widget = g_object_new (GB_TYPE_SEARCH_RESULT,
+                                 "visible", TRUE,
+                                 NULL);
+          child = g_object_new (GTK_TYPE_LABEL,
+                                "label", match->key,
+                                "xalign", 0.0f,
+                                "visible", TRUE,
+                                NULL);
+          gtk_container_add (GTK_CONTAINER (widget), child);
+          list = g_list_prepend (list, widget);
+        }
+
+      list = g_list_reverse (list);
+      gb_search_context_add_results (context, provider, list, TRUE);
+      g_array_unref (matches);
+    }
+}
+
 GgitRepository *
 gb_git_search_provider_get_repository (GbGitSearchProvider *provider)
 {
@@ -230,3 +290,9 @@ gb_git_search_provider_init (GbGitSearchProvider *self)
 {
   self->priv = gb_git_search_provider_get_instance_private (self);
 }
+
+static void
+search_provider_init (GbSearchProviderInterface *iface)
+{
+  iface->populate = gb_git_search_provider_populate;
+}
diff --git a/src/search/gb-search-context.c b/src/search/gb-search-context.c
index ad3712f..4027cbc 100644
--- a/src/search/gb-search-context.c
+++ b/src/search/gb-search-context.c
@@ -141,21 +141,32 @@ gb_search_context_results_added (GbSearchContext  *context,
   g_return_if_fail (GB_IS_SEARCH_CONTEXT (context));
   g_return_if_fail (GB_IS_SEARCH_PROVIDER (provider));
 
+  /* TODO: how should we deal with priority? */
+
   context->priv->results = g_list_concat (context->priv->results, results);
 }
 
+/**
+ * gb_search_context_add_results:
+ * @results: (transfer full) (element-type GbSearchResult*): A #GList or %NULL
+ * @finished: if the provider is finished adding results.
+ *
+ * This function will add a list of results to the context. Ownership of
+ * @results and the contained elements will be transfered to @context.
+ */
 void
 gb_search_context_add_results (GbSearchContext  *context,
                                GbSearchProvider *provider,
-                               GList            *proposals,
+                               GList            *results,
                                gboolean          finished)
 {
   g_return_if_fail (GB_IS_SEARCH_CONTEXT (context));
   g_return_if_fail (GB_IS_SEARCH_PROVIDER (provider));
 
-  g_signal_emit (context, gSignals [RESULTS_ADDED], 0,
-                 provider, proposals, finished);
+  g_list_foreach (results, (GFunc)g_object_ref_sink, NULL);
 
+  g_signal_emit (context, gSignals [RESULTS_ADDED], 0,
+                 provider, results, finished);
 }
 
 const gchar *
diff --git a/src/search/gb-search-context.h b/src/search/gb-search-context.h
index 94bb03b..8b34f83 100644
--- a/src/search/gb-search-context.h
+++ b/src/search/gb-search-context.h
@@ -51,15 +51,16 @@ struct _GbSearchContextClass
                          gboolean          finished);
 };
 
-GType            gb_search_context_get_type    (void);
-GbSearchContext *gb_search_context_new         (const GList      *providers,
-                                                const gchar      *search_text);
-void             gb_search_context_cancel      (GbSearchContext  *context);
-void             gb_search_context_add_results (GbSearchContext  *context,
-                                                GbSearchProvider *provider,
-                                                GList            *results,
-                                                gboolean          finished);
-void             gb_search_context_execute     (GbSearchContext  *context);
+GType            gb_search_context_get_type        (void);
+GbSearchContext *gb_search_context_new             (const GList      *providers,
+                                                    const gchar      *search_text);
+void             gb_search_context_cancel          (GbSearchContext  *context);
+void             gb_search_context_add_results     (GbSearchContext  *context,
+                                                    GbSearchProvider *provider,
+                                                    GList            *results,
+                                                    gboolean          finished);
+void             gb_search_context_execute         (GbSearchContext  *context);
+const gchar     *gb_search_context_get_search_text (GbSearchContext *context);
 
 G_END_DECLS