--- /dev/null
+/*
+ * Copyright © 2020 Collabora, Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "ivi-compositor.h"
+#include "policy.h"
+
+/*
+ * default policy implementation allows every action to be possible
+ *
+ * This is an example, that implements the API
+ *
+ * For injecting rules back in the compositor one should use ivi_policy_add()
+ * - policy_rule_allow_to_add is required in order to add further policy rules
+ * - policy_rule_try_event will be callback executed when handling the state
+ * change
+ */
+static bool
+ivi_policy_default_surface_create(struct ivi_surface *surf, void *user_data)
+{
+ /* verify that the surface should be created */
+ return true;
+}
+
+static bool
+ivi_policy_default_surface_commmited(struct ivi_surface *surf, void *user_data)
+{
+ /* verify that the surface should be committed */
+ return true;
+}
+
+static bool
+ivi_policy_default_surface_activate(struct ivi_surface *surf, void *user_data)
+{
+ /* verify that the surface should be switched to */
+ return true;
+}
+
+static bool
+ivi_policy_default_allow_to_add(void *user_data)
+{
+ /* verify that policy rules can be added with ivi_policy_add() */
+ return true;
+}
+
+/*
+ * Policy rules added by ivi_policy_add() will be handled by this callback, and
+ * should be treated depending on the event. Note this is just an example.
+ */
+static void
+ivi_policy_default_try_event(struct ivi_a_policy *a_policy)
+{
+ uint32_t event = a_policy->event;
+
+ switch (event) {
+ case AGL_SHELL_POLICY_EVENT_SHOW:
+ ivi_layout_activate(a_policy->output, a_policy->app_id);
+ break;
+ case AGL_SHELL_POLICY_EVENT_HIDE:
+ /* FIXME: remove the active one, like basically unmap it? */
+ default:
+ break;
+ }
+}
+
+static const struct ivi_policy_api policy_api = {
+ .struct_size = sizeof(policy_api),
+ .surface_create = ivi_policy_default_surface_create,
+ .surface_commited = ivi_policy_default_surface_commmited,
+ .surface_activate = ivi_policy_default_surface_activate,
+ .policy_rule_allow_to_add = ivi_policy_default_allow_to_add,
+ .policy_rule_try_event = ivi_policy_default_try_event,
+};
+
+int
+ivi_policy_init(struct ivi_compositor *ivi)
+{
+ ivi->policy = ivi_policy_create(ivi, &policy_api, ivi);
+ if (!ivi->policy)
+ return -1;
+
+ return 0;
+}