gtk3/gtk3-atk-table-cell.patch

From f7b0e26b427f42d312dc84c4197181a364da88f0 Mon Sep 17 00:00:00 2001
From: Mike Gorse <mgorse@alum.wpi.edu>
Date: Thu, 8 Nov 2018 10:26:02 -0600
Subject: [PATCH] A11y: Add support for AtkTableCell

---
 gtk/a11y/gtkcellaccessible.c        | 88 ++++++++++++++++++++++++++++-
 gtk/a11y/gtkcellaccessibleparent.c  | 66 ++++++++++++++++++++++
 gtk/a11y/gtkcellaccessibleparent.h  | 19 +++++++
 gtk/a11y/gtktreeviewaccessible.c    | 52 +++++++++++++++++
 testsuite/a11y/accessibility-dump.c | 51 +++++++++++++++++
 5 files changed, 275 insertions(+), 1 deletion(-)

diff --git a/gtk/a11y/gtkcellaccessible.c b/gtk/a11y/gtkcellaccessible.c
index ad7601405f..ebbf096b3b 100644
--- a/gtk/a11y/gtkcellaccessible.c
+++ b/gtk/a11y/gtkcellaccessible.c
@@ -46,11 +46,13 @@ static const struct {
 static GtkCellRendererState gtk_cell_accessible_get_state (GtkCellAccessible *cell);
 static void atk_action_interface_init    (AtkActionIface    *iface);
 static void atk_component_interface_init (AtkComponentIface *iface);
+static void atk_table_cell_interface_init    (AtkTableCellIface    *iface);
 
 G_DEFINE_TYPE_WITH_CODE (GtkCellAccessible, gtk_cell_accessible, GTK_TYPE_ACCESSIBLE,
                          G_ADD_PRIVATE (GtkCellAccessible)
                          G_IMPLEMENT_INTERFACE (ATK_TYPE_ACTION, atk_action_interface_init)
-                         G_IMPLEMENT_INTERFACE (ATK_TYPE_COMPONENT, atk_component_interface_init))
+                         G_IMPLEMENT_INTERFACE (ATK_TYPE_COMPONENT, atk_component_interface_init)
+                         G_IMPLEMENT_INTERFACE (ATK_TYPE_TABLE_CELL, atk_table_cell_interface_init))
 
 static gint
 gtk_cell_accessible_get_index_in_parent (AtkObject *obj)
@@ -366,6 +368,90 @@ atk_component_interface_init (AtkComponentIface *iface)
   iface->grab_focus = gtk_cell_accessible_grab_focus;
 }
 
+static gboolean
+gtk_cell_accessible_get_column_span (AtkTableCell *table_cell)
+{
+  return 1;
+}
+
+static GPtrArray *
+gtk_cell_accessible_get_column_header_cells (AtkTableCell *table_cell)
+{
+  GtkCellAccessible *cell;
+  AtkObject *parent;
+
+  cell = GTK_CELL_ACCESSIBLE (table_cell);
+  parent = gtk_widget_get_accessible (gtk_accessible_get_widget (GTK_ACCESSIBLE (cell)));
+
+  return gtk_cell_accessible_parent_get_column_header_cells (GTK_CELL_ACCESSIBLE_PARENT (parent),
+                                                             cell);
+}
+
+static gboolean
+gtk_cell_accessible_get_position (AtkTableCell *table_cell,
+                                  gint         *row,
+                                  gint         *column)
+{
+  GtkCellAccessible *cell;
+  AtkObject *parent;
+
+  cell = GTK_CELL_ACCESSIBLE (table_cell);
+  parent = gtk_widget_get_accessible (gtk_accessible_get_widget (GTK_ACCESSIBLE (cell)));
+
+  gtk_cell_accessible_parent_get_cell_position (GTK_CELL_ACCESSIBLE_PARENT (parent),
+                                                cell,
+                                                row, column);
+  return ((row && *row > 0) || (column && *column > 0));
+}
+
+static gboolean
+gtk_cell_accessible_get_row_span (AtkTableCell *table_cell)
+{
+  return 1;
+}
+
+static GPtrArray *
+gtk_cell_accessible_get_row_header_cells (AtkTableCell *table_cell)
+{
+  GtkCellAccessible *cell;
+  AtkObject *parent;
+
+  cell = GTK_CELL_ACCESSIBLE (table_cell);
+  parent = gtk_widget_get_accessible (gtk_accessible_get_widget (GTK_ACCESSIBLE (cell)));
+
+  return gtk_cell_accessible_parent_get_row_header_cells (GTK_CELL_ACCESSIBLE_PARENT (parent),
+                                                          cell);
+}
+
+static gboolean
+gtk_cell_accessible_get_table (AtkTableCell *table_cell)
+{
+  AtkObject *obj;
+
+  obj = ATK_OBJECT (table_cell);
+  do
+    {
+      AtkRole role;
+      obj = atk_object_get_parent (obj);
+      role = atk_object_get_role (obj);
+      if (role == ATK_ROLE_TABLE || role == ATK_ROLE_TREE_TABLE)
+        break;
+    }
+  while (obj);
+  return obj;
+}
+
+static void
+atk_table_cell_interface_init (AtkTableCellIface *iface)
+{
+  iface->get_column_span = gtk_cell_accessible_get_column_span;
+  iface->get_column_header_cells = gtk_cell_accessible_get_column_header_cells;
+  iface->get_position = gtk_cell_accessible_get_position;
+  iface->get_row_span = gtk_cell_accessible_get_row_span;
+  iface->get_row_header_cells = gtk_cell_accessible_get_row_header_cells;
+  iface->get_table = gtk_cell_accessible_get_table;
+}
+
 static GtkCellRendererState
 gtk_cell_accessible_get_state (GtkCellAccessible *cell)
 {
diff --git a/gtk/a11y/gtkcellaccessibleparent.c b/gtk/a11y/gtkcellaccessibleparent.c
index e4ad784a27..1f9dcd75f9 100644
--- a/gtk/a11y/gtkcellaccessibleparent.c
+++ b/gtk/a11y/gtkcellaccessibleparent.c
@@ -187,3 +187,69 @@ gtk_cell_accessible_parent_update_relationset (GtkCellAccessibleParent *parent,
   if (iface->update_relationset)
     (iface->update_relationset) (parent, cell, relationset);
 }
+
+void
+gtk_cell_accessible_parent_get_cell_position (GtkCellAccessibleParent *parent,
+                                              GtkCellAccessible       *cell,
+                                              gint                    *row,
+                                              gint                    *column)
+{
+  GtkCellAccessibleParentIface *iface;
+
+  g_return_if_fail (GTK_IS_CELL_ACCESSIBLE_PARENT (parent));
+  g_return_if_fail (GTK_IS_CELL_ACCESSIBLE (cell));
+
+  iface = GTK_CELL_ACCESSIBLE_PARENT_GET_IFACE (parent);
+
+  if (iface->get_cell_position)
+    (iface->get_cell_position) (parent, cell, row, column);
+  else
+    {
+      if (row)
+        *row = -1;
+      if (column)
+        *column = -1;
+    }
+}
+
+/**
+ * gtk_cell_accessible_parent_get_column_header_cells:
+ * Returns: (transfer full) (element-type AtkObject)
+ */
+GPtrArray *
+gtk_cell_accessible_parent_get_column_header_cells (GtkCellAccessibleParent *parent,
+                                                    GtkCellAccessible       *cell)
+{
+  GtkCellAccessibleParentIface *iface;
+
+  g_return_val_if_fail (GTK_IS_CELL_ACCESSIBLE_PARENT (parent), NULL);
+  g_return_val_if_fail (GTK_IS_CELL_ACCESSIBLE (cell), NULL);
+
+  iface = GTK_CELL_ACCESSIBLE_PARENT_GET_IFACE (parent);
+
+  if (iface->get_column_header_cells)
+    return (iface->get_column_header_cells) (parent, cell);
+  else
+    return NULL;
+}
+
+/**
+ * gtk_cell_accessible_parent_get_row_header_cells:
+ * Returns: (transfer full) (element-type AtkObject)
+ */
+GPtrArray *
+gtk_cell_accessible_parent_get_row_header_cells (GtkCellAccessibleParent *parent,
+                                                    GtkCellAccessible       *cell)
+{
+  GtkCellAccessibleParentIface *iface;
+
+  g_return_val_if_fail (GTK_IS_CELL_ACCESSIBLE_PARENT (parent), NULL);
+  g_return_val_if_fail (GTK_IS_CELL_ACCESSIBLE (cell), NULL);
+
+  iface = GTK_CELL_ACCESSIBLE_PARENT_GET_IFACE (parent);
+
+  if (iface->get_row_header_cells)
+    return (iface->get_row_header_cells) (parent, cell);
+  else
+    return NULL;
+}
diff --git a/gtk/a11y/gtkcellaccessibleparent.h b/gtk/a11y/gtkcellaccessibleparent.h
index 7cece0e778..a773f37288 100644
--- a/gtk/a11y/gtkcellaccessibleparent.h
+++ b/gtk/a11y/gtkcellaccessibleparent.h
@@ -75,6 +75,14 @@ struct _GtkCellAccessibleParentIface
   void     ( *update_relationset) (GtkCellAccessibleParent *parent,
                                  GtkCellAccessible       *cell,
                                  AtkRelationSet          *relationset);
+  void     ( *get_cell_position) (GtkCellAccessibleParent *parent,
+                                  GtkCellAccessible       *cell,
+                                  gint                    *row,
+                                  gint                    *column);
+  GPtrArray *   ( *get_column_header_cells) (GtkCellAccessibleParent *parent,
+                                             GtkCellAccessible       *cell);
+  GPtrArray *   ( *get_row_header_cells)    (GtkCellAccessibleParent *parent,
+                                             GtkCellAccessible       *cell);
 };
 
 GDK_AVAILABLE_IN_ALL
@@ -115,6 +123,17 @@ GDK_AVAILABLE_IN_ALL
 void     gtk_cell_accessible_parent_update_relationset (GtkCellAccessibleParent *parent,
                                                       GtkCellAccessible       *cell,
                                                       AtkRelationSet          *relationset);
+GDK_AVAILABLE_IN_ALL
+void     gtk_cell_accessible_parent_get_cell_position(GtkCellAccessibleParent *parent,
+                                                      GtkCellAccessible       *cell,
+                                                      gint                    *row,
+                                                      gint                    *column);
+
+GPtrArray   *gtk_cell_accessible_parent_get_column_header_cells (GtkCellAccessibleParent *parent,
+                                                                 GtkCellAccessible       *cell);
+
+GPtrArray   *gtk_cell_accessible_parent_get_row_header_cells    (GtkCellAccessibleParent *parent,
+                                                                 GtkCellAccessible       *cell);
 
 G_END_DECLS
 
diff --git a/gtk/a11y/gtktreeviewaccessible.c b/gtk/a11y/gtktreeviewaccessible.c
index f32acee10b..37339ceb14 100644
--- a/gtk/a11y/gtktreeviewaccessible.c
+++ b/gtk/a11y/gtktreeviewaccessible.c
@@ -1391,6 +1391,56 @@ gtk_tree_view_accessible_update_relationset (GtkCellAccessibleParent *parent,
     }
 }
 
+static void
+gtk_tree_view_accessible_get_cell_position (GtkCellAccessibleParent *parent,
+                                            GtkCellAccessible       *cell,
+                                            gint                    *row,
+                                            gint                    *column)
+{
+  GtkWidget *widget;
+  GtkTreeView *tree_view;
+  GtkTreeViewAccessibleCellInfo *cell_info;
+  GtkTreeViewAccessible *accessible;
+
+  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (parent));
+  if (widget == NULL)
+    return;
+
+  tree_view = GTK_TREE_VIEW (widget);
+  accessible = GTK_TREE_VIEW_ACCESSIBLE (parent);
+  cell_info = find_cell_info (accessible, cell);
+  if (!cell_info)
+    return;
+
+  if (row)
+    (*row) = _gtk_rbtree_node_get_index (cell_info->tree, cell_info->node);
+  if (column)
+    (*column) = get_column_number (tree_view, cell_info->cell_col_ref);
+}
+
+static GPtrArray *
+gtk_tree_view_accessible_get_column_header_cells (GtkCellAccessibleParent *parent,
+                                                  GtkCellAccessible       *cell)
+{
+  GtkWidget *widget;
+  GtkTreeViewAccessibleCellInfo *cell_info;
+  GtkTreeViewAccessible *accessible;
+  GPtrArray *array;
+
+  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (parent));
+  if (widget == NULL)
+    return NULL;
+
+  accessible = GTK_TREE_VIEW_ACCESSIBLE (parent);
+  cell_info = find_cell_info (accessible, cell);
+  if (!cell_info)
+    return NULL;
+
+  array = g_ptr_array_new_full (1, g_object_unref);
+  g_ptr_array_add (array, g_object_ref (get_header_from_column ( (cell_info->cell_col_ref))));
+  return array;
+}
+
 static void
 gtk_cell_accessible_parent_interface_init (GtkCellAccessibleParentIface *iface)
 {
@@ -1403,6 +1453,8 @@ gtk_cell_accessible_parent_interface_init (GtkCellAccessibleParentIface *iface)
   iface->activate = gtk_tree_view_accessible_activate;
   iface->edit = gtk_tree_view_accessible_edit;
   iface->update_relationset = gtk_tree_view_accessible_update_relationset;
+  iface->get_cell_position = gtk_tree_view_accessible_get_cell_position;
+  iface->get_column_header_cells = gtk_tree_view_accessible_get_column_header_cells;
 }
 
 void
diff --git a/testsuite/a11y/accessibility-dump.c b/testsuite/a11y/accessibility-dump.c
index 5f848fb96a..96da1af98b 100644
--- a/testsuite/a11y/accessibility-dump.c
+++ b/testsuite/a11y/accessibility-dump.c
@@ -626,6 +626,54 @@ G_GNUC_END_IGNORE_DEPRECATIONS
     }
 }
 
+static void
+dump_atk_table_cell (AtkTableCell *table_cell,
+                     guint     depth,
+                     GString  *string)
+{
+  gint i;
+  AtkObject *obj;
+  GPtrArray *cells;
+  gint row = -1, column = -1;
+
+  g_string_append_printf (string, "%*s<AtkTableCell>\n", depth, "");
+
+  obj = atk_table_cell_get_table (table_cell);
+  if (obj)
+    g_string_append_printf (string, "%*stable: %s\n", depth, "", get_name (obj));
+
+  cells = atk_table_cell_get_column_header_cells (table_cell);
+  if (cells)
+    {
+      for (i = 0; i < cells->len; i++)
+        {
+          obj = g_ptr_array_index (cells, i);
+          if (obj)
+            g_string_append_printf (string, "%*scolumn-header[%d]: %s\n", depth, "", i, get_name (obj));
+        }
+      g_ptr_array_free (cells, TRUE);
+    }
+
+  cells = atk_table_cell_get_row_header_cells (table_cell);
+  if (cells)
+    {
+      for (i = 0; i < cells->len; i++)
+        {
+          obj = g_ptr_array_index (cells, i);
+          if (obj)
+            g_string_append_printf (string, "%*srow-header[%d]: %s\n", depth, "", i, get_name (obj));
+        }
+      g_ptr_array_free (cells, TRUE);
+    }
+
+  g_string_append_printf (string, "%*scolumn-span: %d\n", depth, "", atk_table_cell_get_column_span (table_cell));
+  g_string_append_printf (string, "%*srow-span: %d\n", depth, "", atk_table_cell_get_row_span (table_cell));
+  if (atk_table_cell_get_position (table_cell, &row, &column))
+    {
+      g_string_append_printf (string, "%*sposition: %d %d\n", depth, "", row, column);
+    }
+}
+
 static void
 dump_accessible (AtkObject     *accessible,
                  guint          depth,
@@ -679,6 +727,9 @@ dump_accessible (AtkObject     *accessible,
   if (ATK_IS_TABLE (accessible))
     dump_atk_table (ATK_TABLE (accessible), depth, string);
 
+  if (ATK_IS_TABLE_CELL (accessible))
+    dump_atk_table_cell (ATK_TABLE_CELL (accessible), depth, string);
+
   for (i = 0; i < atk_object_get_n_accessible_children (accessible); i++)
     {
       AtkObject *child = atk_object_ref_accessible_child (accessible, i);
diff --git a/testsuite/a11y/tree.txt b/testsuite/a11y/tree.txt
index 4b0bb681db..c26c1a9c84 100644
--- a/testsuite/a11y/tree.txt
+++ b/testsuite/a11y/tree.txt
@@ -59,6 +59,11 @@ window1
       action 1 description: Creates a widget in which the contents of the cell can be edited
       action 2 name: activate
       action 2 description: Activates the cell
+      <AtkTableCell>
+      table: tv
+      column-header[0]: unnamed-GtkButtonAccessible-0
+      column-span: 1
+      row-span: 1
       tv
         "table cell"
         parent: tv
@@ -103,6 +108,11 @@ window1
         action 1 description: Creates a widget in which the contents of the cell can be edited
         action 2 name: activate
         action 2 description: Activates the cell
+        <AtkTableCell>
+        table: tv
+        column-header[0]: unnamed-GtkButtonAccessible-0
+        column-span: 1
+        row-span: 1
       tv
         "table cell"
         parent: tv
@@ -147,6 +157,11 @@ window1
         action 1 description: Creates a widget in which the contents of the cell can be edited
         action 2 name: activate
         action 2 description: Activates the cell
+        <AtkTableCell>
+        table: tv
+        column-header[0]: unnamed-GtkButtonAccessible-0
+        column-span: 1
+        row-span: 1
     tv
       "table cell"
       parent: tv
@@ -162,6 +177,12 @@ window1
       action 1 description: Creates a widget in which the contents of the cell can be edited
       action 2 name: activate
       action 2 description: Activates the cell
+      <AtkTableCell>
+      table: tv
+      column-header[0]: unnamed-GtkButtonAccessible-0
+      column-span: 1
+      row-span: 1
+      position: 1 0
       tv
         "table cell"
         parent: tv
@@ -206,6 +227,12 @@ window1
         action 1 description: Creates a widget in which the contents of the cell can be edited
         action 2 name: activate
         action 2 description: Activates the cell
+        <AtkTableCell>
+        table: tv
+        column-header[0]: unnamed-GtkButtonAccessible-0
+        column-span: 1
+        row-span: 1
+        position: 1 0
       tv
         "table cell"
         parent: tv
@@ -250,6 +277,12 @@ window1
         action 1 description: Creates a widget in which the contents of the cell can be edited
         action 2 name: activate
         action 2 description: Activates the cell
+        <AtkTableCell>
+        table: tv
+        column-header[0]: unnamed-GtkButtonAccessible-0
+        column-span: 1
+        row-span: 1
+        position: 1 0
     tv
       "table cell"
       parent: tv
@@ -265,6 +298,12 @@ window1
       action 1 description: Creates a widget in which the contents of the cell can be edited
       action 2 name: activate
       action 2 description: Activates the cell
+      <AtkTableCell>
+      table: tv
+      column-header[0]: unnamed-GtkButtonAccessible-0
+      column-span: 1
+      row-span: 1
+      position: 2 0
       tv
         "table cell"
         parent: tv
@@ -309,6 +348,12 @@ window1
         action 1 description: Creates a widget in which the contents of the cell can be edited
         action 2 name: activate
         action 2 description: Activates the cell
+        <AtkTableCell>
+        table: tv
+        column-header[0]: unnamed-GtkButtonAccessible-0
+        column-span: 1
+        row-span: 1
+        position: 2 0
       tv
         "table cell"
         parent: tv
@@ -353,3 +398,9 @@ window1
         action 1 description: Creates a widget in which the contents of the cell can be edited
         action 2 name: activate
         action 2 description: Activates the cell
+        <AtkTableCell>
+        table: tv
+        column-header[0]: unnamed-GtkButtonAccessible-0
+        column-span: 1
+        row-span: 1
+        position: 2 0
-- 
2.18.0