Added a resourcecollection class

This class will typically be the super class of globals which creates
wl_resources in the bind functions. If for some reason some other class
needs to get a resource for a given client of the global, it can look it
up

Change-Id: I939cc7aaeb15586f2c760c600c188a8cbf19f358
Reviewed-by: Laszlo Agocs <laszlo.p.agocs@nokia.com>

4 files changed, 252 insertions, 1 deletions

diff --git a/src/compositor/global/global.pri b/src/compositor/global/global.pri
index bdabcbfcf..4dcbe340e 100644
--- a/src/compositor/global/global.pri
+++ b/src/compositor/global/global.pri
@@ -1,5 +1,10 @@
 INCLUDEPATH += $$PWD
 
-HEADERS += $$PWD/waylandexport.h
+HEADERS += \
+    $$PWD/waylandexport.h \
+    $$PWD/waylandobject.h \
+    $$PWD/waylandresourcecollection.h \
 
+SOURCES += \
+    $$PWD/waylandresourcecollection.cpp \
 
diff --git a/src/compositor/global/waylandobject.h b/src/compositor/global/waylandobject.h
new file mode 100644
index 000000000..131cd0993
--- /dev/null
+++ b/src/compositor/global/waylandobject.h
@@ -0,0 +1,87 @@
+/****************************************************************************
+**
+** This file is part of QtCompositor**
+**
+** Copyright © 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+**
+** Contact:  Nokia Corporation qt-info@nokia.com
+**
+** You may use this file under the terms of the BSD license as follows:
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**
+** Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+**
+** Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in the
+** documentation and/or other materials provided with the distribution.
+**
+** Neither the name of Nokia Corporation and its Subsidiary(-ies) nor the
+** names of its contributors may be used to endorse or promote products
+** derived from this software without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+**
+****************************************************************************/
+
+#ifndef WAYLAND_OBJECT_H
+#define WAYLAND_OBJECT_H
+
+#include <wayland-server.h>
+
+#include <string.h>
+
+namespace Wayland {
+
+template <typename T>
+class Object
+{
+public:
+    Object() { memset(&m_waylandObject, 0, sizeof(T)); }
+
+    const T *base() const { return &m_waylandObject; }
+    T *base() { return &m_waylandObject; }
+
+private:
+    T m_waylandObject;
+};
+
+template <typename To, typename From>
+To wayland_cast(From *from)
+{
+    Object<From> *object = reinterpret_cast<Object<From> *>(from);
+    return static_cast<To>(object);
+}
+
+template <typename Implementation>
+void addClientResource(struct wl_client *client,
+                       struct wl_resource *resource,
+                       int id, const struct wl_interface *interface,
+                       Implementation implementation,
+                       void (*destroy)(struct wl_resource *resource))
+{
+    resource->object.id = id;
+    resource->object.interface = interface;
+    resource->object.implementation = (void (**)(void))implementation;
+    resource->destroy = destroy;
+
+    wl_client_add_resource(client, resource);
+}
+
+}
+
+#endif //WAYLAND_OBJECT_H
diff --git a/src/compositor/global/waylandresourcecollection.cpp b/src/compositor/global/waylandresourcecollection.cpp
new file mode 100644
index 000000000..9601f6f49
--- /dev/null
+++ b/src/compositor/global/waylandresourcecollection.cpp
@@ -0,0 +1,92 @@
+/****************************************************************************
+**
+** This file is part of QtCompositor**
+**
+** Copyright © 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+**
+** Contact:  Nokia Corporation qt-info@nokia.com
+**
+** You may use this file under the terms of the BSD license as follows:
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**
+** Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+**
+** Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in the
+** documentation and/or other materials provided with the distribution.
+**
+** Neither the name of Nokia Corporation and its Subsidiary(-ies) nor the
+** names of its contributors may be used to endorse or promote products
+** derived from this software without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+**
+****************************************************************************/
+
+#include "waylandresourcecollection.h"
+
+#include <QtCore/qglobal.h>
+
+namespace Wayland {
+
+ResourceCollection::ResourceCollection()
+{
+    wl_list_init(&client_resources);
+}
+
+ResourceCollection::~ResourceCollection()
+{
+
+}
+
+void ResourceCollection::registerResource(struct wl_resource *resource)
+{
+    wl_list_insert(&client_resources,&resource->link);
+    struct wl_listener *listener = new struct wl_listener;
+    listener->func = ResourceCollection::destroy_listener_func;
+    wl_list_insert(&resource->destroy_listener_list,&listener->link);
+}
+
+struct wl_resource *ResourceCollection::resourceForClient(wl_client *client) const
+{
+    struct wl_resource *resource;
+    wl_list_for_each(resource,&client_resources, link) {
+        if (resource->client == client) {
+            return resource;
+        }
+    }
+    return 0;
+
+}
+
+bool ResourceCollection::resourceListIsEmpty() const
+{
+    return wl_list_empty(const_cast<struct wl_list *>(&client_resources));
+}
+
+void ResourceCollection::destroy_listener_func(struct wl_listener *listener,
+                                   wl_resource *resource,
+                                   uint32_t time)
+{
+    Q_UNUSED(time);
+    wl_list_remove(&resource->link);
+    delete listener;
+}
+
+
+}
diff --git a/src/compositor/global/waylandresourcecollection.h b/src/compositor/global/waylandresourcecollection.h
new file mode 100644
index 000000000..104ec97d0
--- /dev/null
+++ b/src/compositor/global/waylandresourcecollection.h
@@ -0,0 +1,67 @@
+/****************************************************************************
+**
+** This file is part of QtCompositor**
+**
+** Copyright © 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+**
+** Contact:  Nokia Corporation qt-info@nokia.com
+**
+** You may use this file under the terms of the BSD license as follows:
+**
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**
+** Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+**
+** Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in the
+** documentation and/or other materials provided with the distribution.
+**
+** Neither the name of Nokia Corporation and its Subsidiary(-ies) nor the
+** names of its contributors may be used to endorse or promote products
+** derived from this software without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+**
+****************************************************************************/
+
+#ifndef WAYLAND_RESOURCE_OBJECT_H
+#define WAYLAND_RESOURCE_OBJECT_H
+
+#include <wayland-server.h>
+
+namespace Wayland {
+
+class ResourceCollection
+{
+public:
+    ResourceCollection();
+    virtual ~ResourceCollection();
+    void registerResource(struct wl_resource *resource);
+    struct wl_resource *resourceForClient(struct wl_client *client) const;
+    bool resourceListIsEmpty() const;
+
+protected:
+    struct wl_list client_resources;
+private:
+    static void destroy_listener_func(struct wl_listener *listener,
+             struct wl_resource *resource, uint32_t time);
+
+};
+
+}
+
+#endif //WAYLAND_RESOURCE_OBJECT_H