Differential D1231 Diff 15553 src/client/remote_access.h

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src/client/remote_access.h

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1​/****************************************************************************
2​Copyright 2016 Oleg Chernovskiy <kanedias@xaker.ru>
3​
4​This library is free software; you can redistribute it and/or
5​modify it under the terms of the GNU Lesser General Public
6​License as published by the Free Software Foundation; either
7​version 2.1 of the License, or (at your option) version 3, or any
8​later version accepted by the membership of KDE e.V. (or its
9​successor approved by the membership of KDE e.V.), which shall
10​act as a proxy defined in Section 6 of version 3 of the license.
11​
12​This library is distributed in the hope that it will be useful,
13​but WITHOUT ANY WARRANTY; without even the implied warranty of
14​MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15​Lesser General Public License for more details.
16​
17​You should have received a copy of the GNU Lesser General Public
18​License along with this library. If not, see <http://www.gnu.org/licenses/>.
19​****************************************************************************/
20​#ifndef KWAYLAND_CLIENT_REMOTE_ACCESS_H
21​#define KWAYLAND_CLIENT_REMOTE_ACCESS_H
22​
23​#include <QObject>
24​
25​#include <KWayland/Client/kwaylandclient_export.h>
26​
27​struct org_kde_kwin_remote_access_manager;
28​struct org_kde_kwin_remote_buffer;
29​
30​namespace KWayland
31​{
32​namespace Client
33​{
34​
35​class EventQueue;
36​class RemoteBuffer;
37​
38​/**
39​ * @short Wrapper for the org_kde_kwin_remote_access_manager interface.
40​ *
41​ * This class provides a convenient wrapper for the org_kde_kwin_remote_access_manager interface.
42​ *
43​ * To use this class one needs to interact with the Registry. There are two
44​ * possible ways to create the RemoteAccessManager interface:
45​ * @code
46​ * RemoteAccessManager *c = registry->createRemoteAccessManager(name, version);
47​ * @endcode
48​ *
49​ * This creates the RemoteAccessManager and sets it up directly. As an alternative this
50​ * can also be done in a more low level way:
51​ * @code
52​ * RemoteAccessManager *c = new RemoteAccessManager;
53​ * c->setup(registry->bindRemoteAccessManager(name, version));
54​ * @endcode
55​ *
56​ * The RemoteAccessManager can be used as a drop-in replacement for any org_kde_kwin_remote_access_manager
57​ * pointer as it provides matching cast operators.
58​ *
59​ * @see Registry
60​ **/
61​class KWAYLANDCLIENT_EXPORT RemoteAccessManager : public QObject
62​{
63​ Q_OBJECT
64​public:
65​ /**
66​ * Creates a new RemoteAccessManager.
67​ * Note: after constructing the RemoteAccessManager it is not yet valid and one needs
68​ * to call setup. In order to get a ready to use RemoteAccessManager prefer using
69​ * Registry::createRemoteAccessManager.
70​ **/
71​ explicit RemoteAccessManager(QObject *parent = nullptr);
72​ virtual ~RemoteAccessManager();
73​
74​ /**
75​ * Setup this RemoteAccessManager to manage the @p remoteaccessmanager.
76​ * When using Registry::createRemoteAccessManager there is no need to call this
77​ * method.
78​ **/
79​ void setup(org_kde_kwin_remote_access_manager *remoteaccessmanager);
80​ /**
81​ * @returns @c true if managing a org_kde_kwin_remote_access_manager.
82​ **/
83​ bool isValid() const;
84​ /**
85​ * Releases the org_kde_kwin_remote_access_manager interface.
86​ * After the interface has been released the RemoteAccessManager instance is no
87​ * longer valid and can be setup with another org_kde_kwin_remote_access_manager interface.
88​ **/
89​ void release();
90​ /**
91​ * Destroys the data held by this RemoteAccessManager.
92​ * This method is supposed to be used when the connection to the Wayland
93​ * server goes away. If the connection is not valid anymore, it's not
94​ * possible to call release anymore as that calls into the Wayland
95​ * connection and the call would fail. This method cleans up the data, so
96​ * that the instance can be deleted or set up to a new org_kde_kwin_remote_access_manager interface
97​ * once there is a new connection available.
98​ *
99​ * It is suggested to connect this method to ConnectionThread::connectionDied:
100​ * @code
101​ * connect(connection, &ConnectionThread::connectionDied, remoteaccessmanager, &RemoteAccessManager::destroy);
102​ * @endcode
103​ *
104​ * @see release
105​ **/
106​ void destroy();
107​
108​ /**
109​ * Sets the @p queue to use for creating objects with this RemoteAccessManager.
110​ **/
111​ void setEventQueue(EventQueue *queue);
112​ /**
113​ * @returns The event queue to use for creating objects with this RemoteAccessManager.
114​ **/
115​ EventQueue *eventQueue();
116​
117​ operator org_kde_kwin_remote_access_manager*();
118​ operator org_kde_kwin_remote_access_manager*() const;
119​
120​Q_SIGNALS:
121​ /**
122​ * The corresponding global for this interface on the Registry got removed.
123​ *
124​ * This signal gets only emitted if the RemoteAccessManager got created by
125​ * Registry::createRemoteAccessManager
126​ **/
127​ void removed();
128​
129​ /**
130​ * Buffer from server is ready to be delivered to this client
131​ * @param buffer_id internal buffer id to be created
132​ **/
133​ void bufferReady(RemoteBuffer *rbuf);
134​
135​private:
136​ class Private;
137​ QScopedPointer<Private> d;
138​};
139​
140​/**
141​ * @short Wrapper for org_kde_kwin_remote_buffer interface.
142​ * The instances of this class are created by parent RemoteAccessManager.
143​ * Deletion (by noLongerNeeded call) is in responsibility of underlying system.
144​ */
145​class KWAYLANDCLIENT_EXPORT RemoteBuffer : public QObject
146​{
147​ Q_OBJECT
148​public:
149​ virtual ~RemoteBuffer();
150​ /**
151​ * Setup this RemoteBuffer to manage the @p remotebuffer.
152​ **/
153​ void setup(org_kde_kwin_remote_buffer *remotebuffer);
154​ /**
155​ * @returns @c true if managing a org_kde_kwin_remote_buffer.
156​ **/
157​ bool isValid() const;
158​ /**
159​ * Releases the org_kde_kwin_remote_buffer interface.
160​ * After the interface has been released the RemoteBuffer instance is no
161​ * longer valid and can be setup with another org_kde_kwin_remote_buffer interface.
162​ **/
163​ void release();
164​ /**
165​ * Destroys the data held by this RemoteBuffer.
166​ * This method is supposed to be used when the connection to the Wayland
167​ * server goes away. If the connection is not valid anymore, it's not
168​ * possible to call release anymore as that calls into the Wayland
169​ * connection and the call would fail. This method cleans up the data, so
170​ * that the instance can be deleted or set up to a new org_kde_kwin_remote_buffer interface
171​ * once there is a new connection available.
172​ *
173​ * It is suggested to connect this method to ConnectionThread::connectionDied:
174​ * @code
175​ * connect(connection, &ConnectionThread::connectionDied, remotebuffer, &RemoteBuffer::destroy);
176​ * @endcode
177​ *
178​ * @see release
179​ **/
180​ void destroy();
181​
182​ operator org_kde_kwin_remote_buffer*();
183​ operator org_kde_kwin_remote_buffer*() const;
184​
185​ qint32 fd();
186​ quint32 width();
187​ quint32 height();
188​ quint32 stride();
189​ quint32 format();
190​
191​
192​Q_SIGNALS:
graesslinUnsubmitted
Done

I would make the arguments getters in the interface and rather have an empty signal.

graesslin: I would make the arguments getters in the interface and rather have an empty signal.
193​ void parametersObtained();
194​
graesslinUnsubmitted
Done

hmm maybe parametersObtained?

graesslin: hmm maybe parametersObtained?
KanediasAuthorUnsubmitted
Not Done

Sounds reasonable, changed

Kanedias: Sounds reasonable, changed
195​private:
196​
197​ friend class RemoteAccessManager;
198​ explicit RemoteBuffer(QObject *parent = nullptr);
199​ class Private;
200​ QScopedPointer<Private> d;
201​};
202​
203​
204​}
205​}
206​
207​#endif