548978bfe1
Summary: Building upon the generic X Selection support this patch establishes another selection class representing the XDND selection and provides interfaces to communicate drags originating from Xwayland windows to the Wayland server KWin and drags originating from Wayland native drags to Xwayland. For Wayland native drags KWin will claim the XDND selection as owner and will simply translate all relevant events to the XDND protocol and receive alike messages by X clients. When an X client claims the XDND selection KWin is notified via the X protocol and it decides if it allows the X drag to transcend into the Wayland protocol. If this is the case the mouse position is tracked and on entering a Wayland native window a proxy X Window is mapped to the top of the window stack. This proxy window acts as a drag destination for the drag origin window and again X messages will be translated into respective Wayland protocol calls. If the cursor leaves the Wayland window geometry before a drop is registered, the proxy window is unmapped, what triggers a subsequent drag leave event. In both directions the necessary core integration is minimal. There is a single call to be done in the drag and drop event filter through the Xwayland interface class. From my tests this patch facilitates drags between any Qt/KDE apps. What needs extra care are the browsers, which use target formats, that are not directly compatible with the Wayland protocol's MIME representation. For Chromium an additional integration step must be done in order to provide it with a net window stack containing the proxy window. Test Plan: Manually. Auto tests planned. Reviewers: #kwin Subscribers: zzag, kwin, alexde Tags: #kwin Maniphest Tasks: T4611 Differential Revision: https://phabricator.kde.org/D15627
109 lines
3 KiB
C++
109 lines
3 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 1999, 2000 Matthias Ettrich <ettrich@kde.org>
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Copyright (C) 2003 Lubos Lunak <l.lunak@kde.org>
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Copyright (C) 2013 Martin Gräßlin <mgraesslin@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#ifndef KWIN_ATOMS_H
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#define KWIN_ATOMS_H
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#include "xcbutils.h"
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namespace KWin
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{
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class KWIN_EXPORT Atoms
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{
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public:
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Atoms();
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Xcb::Atom kwin_running;
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Xcb::Atom activities;
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Xcb::Atom wm_protocols;
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Xcb::Atom wm_delete_window;
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Xcb::Atom wm_take_focus;
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Xcb::Atom wm_change_state;
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Xcb::Atom wm_client_leader;
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Xcb::Atom wm_window_role;
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Xcb::Atom wm_state;
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Xcb::Atom sm_client_id;
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Xcb::Atom motif_wm_hints;
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Xcb::Atom net_wm_context_help;
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Xcb::Atom net_wm_ping;
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Xcb::Atom net_wm_user_time;
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Xcb::Atom kde_net_wm_user_creation_time;
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Xcb::Atom net_wm_take_activity;
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Xcb::Atom net_wm_window_opacity;
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Xcb::Atom xdnd_selection;
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Xcb::Atom xdnd_aware;
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Xcb::Atom xdnd_enter;
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Xcb::Atom xdnd_type_list;
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Xcb::Atom xdnd_position;
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Xcb::Atom xdnd_status;
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Xcb::Atom xdnd_action_copy;
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Xcb::Atom xdnd_action_move;
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Xcb::Atom xdnd_action_ask;
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Xcb::Atom xdnd_drop;
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Xcb::Atom xdnd_leave;
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Xcb::Atom xdnd_finished;
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Xcb::Atom net_frame_extents;
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Xcb::Atom kde_net_wm_frame_strut;
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Xcb::Atom net_wm_sync_request_counter;
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Xcb::Atom net_wm_sync_request;
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Xcb::Atom kde_net_wm_shadow;
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Xcb::Atom kde_net_wm_tab_group;
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Xcb::Atom kde_first_in_window_list;
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Xcb::Atom kde_color_sheme;
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Xcb::Atom kde_skip_close_animation;
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Xcb::Atom kde_screen_edge_show;
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Xcb::Atom gtk_frame_extents;
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Xcb::Atom kwin_dbus_service;
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Xcb::Atom utf8_string;
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Xcb::Atom text;
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Xcb::Atom uri_list;
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Xcb::Atom wl_surface_id;
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Xcb::Atom kde_net_wm_appmenu_service_name;
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Xcb::Atom kde_net_wm_appmenu_object_path;
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Xcb::Atom clipboard;
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Xcb::Atom timestamp;
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Xcb::Atom targets;
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Xcb::Atom delete_atom;
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Xcb::Atom incr;
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Xcb::Atom wl_selection;
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/**
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* @internal
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**/
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void retrieveHelpers();
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private:
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// helper atoms we need to resolve to "announce" support (see #172028)
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Xcb::Atom m_dtSmWindowInfo;
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Xcb::Atom m_motifSupport;
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bool m_helpersRetrieved;
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};
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extern KWIN_EXPORT Atoms* atoms;
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} // namespace
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#endif
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