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From d4f62b44d47e3dddfb57add4f1f76cab0297584d Mon Sep 17 00:00:00 2001
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From: Matthias Clasen <mclasen@redhat.com>
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Date: Fri, 11 Jun 2021 08:53:46 -0400
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Subject: [PATCH 1/2] a11y: Fix ref counting in tree views
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GtkContainerCellAccessible wasn't unsetting accessible
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parents. Fix that.
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By itself, this doesn't help for freeing a memory leak,
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since AtkObject keeps a ref on its parent, so we never
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free the GtkContainerCellAccessible as long as it has children.
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---
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gtk/a11y/gtkcontainercellaccessible.c | 10 +++++++++-
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1 file changed, 9 insertions(+), 1 deletion(-)
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diff --git a/gtk/a11y/gtkcontainercellaccessible.c b/gtk/a11y/gtkcontainercellaccessible.c
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index a756e3cadf..a40446fb47 100644
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--- a/gtk/a11y/gtkcontainercellaccessible.c
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+++ b/gtk/a11y/gtkcontainercellaccessible.c
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@@ -30,12 +30,19 @@ struct _GtkContainerCellAccessiblePrivate
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G_DEFINE_TYPE_WITH_PRIVATE (GtkContainerCellAccessible, gtk_container_cell_accessible, GTK_TYPE_CELL_ACCESSIBLE)
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+static void
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+unset_child (gpointer child)
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+{
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+ atk_object_set_parent (ATK_OBJECT (child), NULL);
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+ g_object_unref (child);
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+}
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+
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static void
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gtk_container_cell_accessible_finalize (GObject *obj)
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{
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GtkContainerCellAccessible *container = GTK_CONTAINER_CELL_ACCESSIBLE (obj);
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- g_list_free_full (container->priv->children, g_object_unref);
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+ g_list_free_full (container->priv->children, unset_child);
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G_OBJECT_CLASS (gtk_container_cell_accessible_parent_class)->finalize (obj);
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}
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@@ -157,6 +164,7 @@ gtk_container_cell_accessible_remove_child (GtkContainerCellAccessible *containe
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g_return_if_fail (GTK_IS_CELL_ACCESSIBLE (child));
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g_return_if_fail (container->priv->n_children > 0);
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+ atk_object_set_parent (ATK_OBJECT (child), NULL);
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container->priv->children = g_list_remove (container->priv->children, child);
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container->priv->n_children--;
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--
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GitLab
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From 21f8098261486417db371b202bc0494c12017468 Mon Sep 17 00:00:00 2001
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From: Matthias Clasen <mclasen@redhat.com>
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Date: Fri, 11 Jun 2021 08:55:48 -0400
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Subject: [PATCH 2/2] a11y: Plug a memory leak with treeviews
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We need to explicitly remove the children from
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a GtkContainerCellAccessible, since they otherwise
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keep the parent alive.
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Fixes: #3981
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---
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gtk/a11y/gtktreeviewaccessible.c | 11 +++++++++++
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1 file changed, 11 insertions(+)
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diff --git a/gtk/a11y/gtktreeviewaccessible.c b/gtk/a11y/gtktreeviewaccessible.c
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index adad462064..c1a2097a1e 100644
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--- a/gtk/a11y/gtktreeviewaccessible.c
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+++ b/gtk/a11y/gtktreeviewaccessible.c
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@@ -104,6 +104,17 @@ static void
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cell_info_free (GtkTreeViewAccessibleCellInfo *cell_info)
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{
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gtk_accessible_set_widget (GTK_ACCESSIBLE (cell_info->cell), NULL);
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+ if (GTK_IS_CONTAINER_CELL_ACCESSIBLE (cell_info->cell))
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+ {
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+ GList *children;
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+
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+ while ((children = gtk_container_cell_accessible_get_children (GTK_CONTAINER_CELL_ACCESSIBLE (cell_info->cell))) != NULL)
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+ {
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+ GtkCellAccessible *child = children->data;
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+ gtk_container_cell_accessible_remove_child (GTK_CONTAINER_CELL_ACCESSIBLE (cell_info->cell), child);
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+ }
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+ }
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+
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g_object_unref (cell_info->cell);
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g_free (cell_info);
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--
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GitLab
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