[gnome-builder] ls: add some accelerators for ls page

[Christian Hergert <chergert src gnome org>]

commit a8324adf74628b542e01946d1fc49e13a4faa08a
Author: Christian Hergert <chergert redhat com>
Date:   Wed May 1 15:50:56 2019 -0700

    ls: add some accelerators for ls page
    
    We should probably eventually move more from GbpLsPage into the
    GbpLsTreeView subclass to allow us to add more features as necessary.

 src/plugins/ls/gbp-ls-page.c      |   3 ++
 src/plugins/ls/gbp-ls-page.ui     |   2 +-
 src/plugins/ls/gbp-ls-tree-view.c | 101 ++++++++++++++++++++++++++++++++++++++
 src/plugins/ls/gbp-ls-tree-view.h |  31 ++++++++++++
 src/plugins/ls/meson.build        |   1 +
 5 files changed, 137 insertions(+), 1 deletion(-)
---
diff --git a/src/plugins/ls/gbp-ls-page.c b/src/plugins/ls/gbp-ls-page.c
index f833383c6..111b98334 100644
--- a/src/plugins/ls/gbp-ls-page.c
+++ b/src/plugins/ls/gbp-ls-page.c
@@ -27,6 +27,7 @@
 
 #include "gbp-ls-model.h"
 #include "gbp-ls-page.h"
+#include "gbp-ls-tree-view.h"
 
 struct _GbpLsPage
 {
@@ -246,6 +247,8 @@ gbp_ls_page_class_init (GbpLsPageClass *klass)
   gtk_widget_class_bind_template_child (widget_class, GbpLsPage, size_column);
   gtk_widget_class_bind_template_child (widget_class, GbpLsPage, scroller);
   gtk_widget_class_bind_template_child (widget_class, GbpLsPage, tree_view);
+
+  g_type_ensure (GBP_TYPE_LS_TREE_VIEW);
 }
 
 static void
diff --git a/src/plugins/ls/gbp-ls-page.ui b/src/plugins/ls/gbp-ls-page.ui
index 38a50a7d3..ac03eb568 100644
--- a/src/plugins/ls/gbp-ls-page.ui
+++ b/src/plugins/ls/gbp-ls-page.ui
@@ -6,7 +6,7 @@
         <property name="vexpand">true</property>
         <property name="visible">true</property>
         <child>
-          <object class="GtkTreeView" id="tree_view">
+          <object class="GbpLsTreeView" id="tree_view">
             <property name="vexpand">true</property>
             <property name="headers-visible">true</property>
             <property name="visible">true</property>
diff --git a/src/plugins/ls/gbp-ls-tree-view.c b/src/plugins/ls/gbp-ls-tree-view.c
new file mode 100644
index 000000000..fe43fa0d1
--- /dev/null
+++ b/src/plugins/ls/gbp-ls-tree-view.c
@@ -0,0 +1,101 @@
+/* gbp-ls-tree-view.c
+ *
+ * Copyright 2019 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/>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#define G_LOG_DOMAIN "gbp-ls-tree-view"
+
+#include "config.h"
+
+#include "gbp-ls-model.h"
+#include "gbp-ls-tree-view.h"
+
+struct _GbpLsTreeView
+{
+  GtkTreeView  parent_instance;
+};
+
+enum {
+  GO_UP,
+  N_SIGNALS
+};
+
+static guint signals [N_SIGNALS];
+
+G_DEFINE_TYPE (GbpLsTreeView, gbp_ls_tree_view, GTK_TYPE_TREE_VIEW)
+
+static void
+gbp_ls_tree_view_go_up (GbpLsTreeView *self)
+{
+  g_autoptr(GFile) parent = NULL;
+  GtkTreeSelection *selection;
+  GtkTreeModel *model;
+  GtkTreeIter iter;
+  GFile *directory;
+
+  g_assert (GBP_IS_LS_TREE_VIEW (self));
+
+  selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
+  model = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
+
+  if (!GBP_IS_LS_MODEL (model) ||
+      !(directory = gbp_ls_model_get_directory (GBP_LS_MODEL (model))) ||
+      !(parent = g_file_get_parent (directory)))
+    return;
+
+  if (gtk_tree_model_get_iter_first (model, &iter))
+    {
+      g_autoptr(GtkTreePath) path = gtk_tree_model_get_path (model, &iter);
+      GtkTreeViewColumn *column = gtk_tree_view_get_column (GTK_TREE_VIEW (self), 0);
+
+      gtk_tree_selection_select_iter (selection, &iter);
+      gtk_tree_view_row_activated (GTK_TREE_VIEW (self), path, column);
+    }
+}
+
+static void
+gbp_ls_tree_view_finalize (GObject *object)
+{
+  G_OBJECT_CLASS (gbp_ls_tree_view_parent_class)->finalize (object);
+}
+
+static void
+gbp_ls_tree_view_class_init (GbpLsTreeViewClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  GtkBindingSet *binding_set = gtk_binding_set_by_class (klass);
+
+  object_class->finalize = gbp_ls_tree_view_finalize;
+
+  signals [GO_UP] =
+    g_signal_new_class_handler ("go-up",
+                                G_TYPE_FROM_CLASS (klass),
+                                G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+                                G_CALLBACK (gbp_ls_tree_view_go_up),
+                                NULL, NULL,
+                                g_cclosure_marshal_VOID__VOID,
+                                G_TYPE_NONE, 0);
+
+  gtk_binding_entry_add_signal (binding_set, GDK_KEY_Up, GDK_MOD1_MASK, "go-up", 0);
+  gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, 0, "go-up", 0);
+}
+
+static void
+gbp_ls_tree_view_init (GbpLsTreeView *self)
+{
+}
diff --git a/src/plugins/ls/gbp-ls-tree-view.h b/src/plugins/ls/gbp-ls-tree-view.h
new file mode 100644
index 000000000..e904f4edc
--- /dev/null
+++ b/src/plugins/ls/gbp-ls-tree-view.h
@@ -0,0 +1,31 @@
+/* gbp-ls-tree-view.h
+ *
+ * Copyright 2019 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/>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#pragma once
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define GBP_TYPE_LS_TREE_VIEW (gbp_ls_tree_view_get_type())
+
+G_DECLARE_FINAL_TYPE (GbpLsTreeView, gbp_ls_tree_view, GBP, LS_TREE_VIEW, GtkTreeView)
+
+G_END_DECLS
diff --git a/src/plugins/ls/meson.build b/src/plugins/ls/meson.build
index b4afd4aa9..e74df7ebe 100644
--- a/src/plugins/ls/meson.build
+++ b/src/plugins/ls/meson.build
@@ -3,6 +3,7 @@ plugins_sources += files([
   'gbp-ls-page.c',
   'gbp-ls-editor-page-addin.c',
   'gbp-ls-workbench-addin.c',
+  'gbp-ls-tree-view.c',
   'ls-plugin.c',
 ])