[gnome-builder] stack: <Control><Alt>Page_Up and Page_Down to quickly move documents

[Christian Hergert <chergert src gnome org>]

commit 8870bb39badab36ee79479c331932a79307d85ca
Author: Christian Hergert <christian hergert me>
Date:   Mon Dec 22 14:15:31 2014 -0800

    stack: <Control><Alt>Page_Up and Page_Down to quickly move documents
    
    This still isn't my preferred way to navigate, but no reason we shouldn't
    at least have it in here. We probably should add some context to what
    constitutes "previous" and "next" document though.
    
    Right now, that context is widget packing dependent.

 src/documents/gb-document-stack.c     |   98 +++++++++++++++++++++++++++++++++
 src/resources/keybindings/default.ini |    2 +
 2 files changed, 100 insertions(+), 0 deletions(-)
---
diff --git a/src/documents/gb-document-stack.c b/src/documents/gb-document-stack.c
index 70892c5..b510cad 100644
--- a/src/documents/gb-document-stack.c
+++ b/src/documents/gb-document-stack.c
@@ -686,6 +686,102 @@ gb_document_stack_focus_search (GSimpleAction *action,
 }
 
 static void
+gb_document_stack_previous_document_activate (GSimpleAction *action,
+                                              GVariant      *parameter,
+                                              gpointer       user_data)
+{
+  GbDocumentStack *stack = user_data;
+  GtkWidget *child;
+  GList *children;
+  GList *iter;
+  gint position = -1;
+
+  g_return_if_fail (GB_IS_DOCUMENT_STACK (stack));
+
+  child = gtk_stack_get_visible_child (stack->priv->stack);
+  if (!child)
+    return;
+
+  gtk_container_child_get (GTK_CONTAINER (stack->priv->stack), child,
+                           "position", &position,
+                           NULL);
+  if (position <= 0)
+    return;
+
+  position--;
+
+  children = gtk_container_get_children (GTK_CONTAINER (stack->priv->stack));
+
+  for (iter = children; iter; iter = iter->next)
+    {
+      gint child_pos = -1;
+
+      gtk_container_child_get (GTK_CONTAINER (stack->priv->stack), iter->data,
+                               "position", &child_pos,
+                               NULL);
+
+      if (child_pos == position)
+        {
+          GbDocument *document;
+
+          document = gb_document_view_get_document (iter->data);
+          gb_document_menu_button_select_document (stack->priv->document_button,
+                                                   document);
+          break;
+        }
+    }
+
+  g_list_free (children);
+}
+
+static void
+gb_document_stack_next_document_activate (GSimpleAction *action,
+                                          GVariant      *parameter,
+                                          gpointer       user_data)
+{
+  GbDocumentStack *stack = user_data;
+  GtkWidget *child;
+  GList *children;
+  GList *iter;
+  gint position = -1;
+
+  g_return_if_fail (GB_IS_DOCUMENT_STACK (stack));
+
+  child = gtk_stack_get_visible_child (stack->priv->stack);
+  if (!child)
+    return;
+
+  gtk_container_child_get (GTK_CONTAINER (stack->priv->stack), child,
+                           "position", &position,
+                           NULL);
+
+  position++;
+
+  children = gtk_container_get_children (GTK_CONTAINER (stack->priv->stack));
+
+  for (iter = children; iter; iter = iter->next)
+    {
+      gint child_pos = -1;
+
+      gtk_container_child_get (GTK_CONTAINER (stack->priv->stack), iter->data,
+                               "position", &child_pos,
+                               NULL);
+
+      if (child_pos == position)
+        {
+          GbDocument *document;
+
+          document = gb_document_view_get_document (iter->data);
+          gb_document_menu_button_select_document (stack->priv->document_button,
+                                                   document);
+          break;
+        }
+    }
+
+  g_list_free (children);
+}
+
+static void
 gb_document_stack_finalize (GObject *object)
 {
   GbDocumentStackPrivate *priv = GB_DOCUMENT_STACK (object)->priv;
@@ -848,6 +944,8 @@ gb_document_stack_init (GbDocumentStack *self)
     { "preview", gb_document_stack_preview_activate },
     { "save", gb_document_stack_save_activate },
     { "save-as", gb_document_stack_save_as_activate },
+    { "previous-document", gb_document_stack_previous_document_activate },
+    { "next-document", gb_document_stack_next_document_activate },
   };
 
   self->priv = gb_document_stack_get_instance_private (self);
diff --git a/src/resources/keybindings/default.ini b/src/resources/keybindings/default.ini
index 27f39da..8740a40 100644
--- a/src/resources/keybindings/default.ini
+++ b/src/resources/keybindings/default.ini
@@ -35,3 +35,5 @@ split-document-right = <Control><Alt>L
 save = <Control>S
 save-as = <Control><Shift>S
 preview = <Control><Alt>P
+previous-document = <Control><Alt>Page_Up
+next-document = <Control><Alt>Page_Down