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/*----------------------------------------------------------------------* |
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* File: rxvttoolkit.C |
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*----------------------------------------------------------------------* |
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* |
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* All portions of code are copyright by their respective author/s. |
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* Copyright (c) 2003-2011 Marc Lehmann <schmorp@schmorp.de> |
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* Copyright (c) 2011 Emanuele Giaquinta <e.giaquinta@glauco.it> |
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* |
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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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* |
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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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* |
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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, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*----------------------------------------------------------------------*/ |
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|
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#include "../config.h" |
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#include <rxvt.h> |
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#include <rxvttoolkit.h> |
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|
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#include <unistd.h> |
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#include <fcntl.h> |
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|
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#include <sys/utsname.h> |
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#include <sys/socket.h> |
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#include <sys/un.h> |
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|
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#if XFT |
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# include <X11/extensions/Xrender.h> |
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#endif |
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|
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static const char *const xa_names[] = |
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{ |
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"TEXT", |
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"COMPOUND_TEXT", |
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"UTF8_STRING", |
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"MULTIPLE", |
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"TARGETS", |
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"TIMESTAMP", |
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"VT_SELECTION", |
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"INCR", |
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"WM_PROTOCOLS", |
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"WM_DELETE_WINDOW", |
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"CLIPBOARD", |
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"AVERAGE_WIDTH", |
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"WEIGHT_NAME", |
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"SLANT", |
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"CHARSET_REGISTRY", |
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"CHARSET_ENCODING", |
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#if ENABLE_FRILLS |
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"_MOTIF_WM_HINTS", |
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#endif |
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#if ENABLE_EWMH |
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"_NET_WM_PID", |
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"_NET_WM_NAME", |
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"_NET_WM_ICON_NAME", |
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"_NET_WM_PING", |
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"_NET_WM_ICON", |
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#endif |
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#if USE_XIM |
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"WM_LOCALE_NAME", |
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"XIM_SERVERS", |
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#endif |
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#if ENABLE_TRANSPARENCY || ENABLE_PERL |
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"_XROOTPMAP_ID", |
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"ESETROOT_PMAP_ID", |
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#endif |
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#if ENABLE_XEMBED |
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"_XEMBED", |
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"_XEMBED_INFO", |
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#endif |
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#if !ENABLE_MINIMAL |
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"SCREEN_RESOURCES", |
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"XDCCC_LINEAR_RGB_CORRECTION", |
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"XDCCC_LINEAR_RGB_MATRICES", |
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"WM_COLORMAP_WINDOWS", |
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"WM_STATE", |
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"cursor", |
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# if USE_XIM |
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"TRANSPORT", |
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"LOCALES", |
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"_XIM_PROTOCOL", |
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"_XIM_XCONNECT", |
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"_XIM_MOREDATA", |
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# endif |
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#endif |
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}; |
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|
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///////////////////////////////////////////////////////////////////////////// |
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|
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refcounted::refcounted (const char *id) |
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{ |
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this->id = strdup (id); |
101 |
} |
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|
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refcounted::~refcounted () |
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{ |
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free (id); |
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} |
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|
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template<class T> |
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T *refcache<T>::get (const char *id) |
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{ |
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for (T **i = this->begin (); i < this->end (); ++i) |
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{ |
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if (!strcmp (id, (*i)->id)) |
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{ |
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++(*i)->referenced; |
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(*i)->ref_next (); |
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return *i; |
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} |
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} |
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|
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T *obj = new T (id); |
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|
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if (obj && obj->ref_init ()) |
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{ |
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obj->referenced = 1; |
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this->push_back (obj); |
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return obj; |
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} |
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else |
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{ |
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delete obj; |
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return 0; |
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} |
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} |
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|
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template<class T> |
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void refcache<T>::put (T *obj) |
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{ |
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if (!obj) |
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return; |
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|
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if (!--obj->referenced) |
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{ |
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this->erase (find (this->begin (), this->end (), obj)); |
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delete obj; |
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} |
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} |
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|
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template<class T> |
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void refcache<T>::clear () |
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{ |
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while (this->size ()) |
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put (*this->begin ()); |
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} |
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|
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///////////////////////////////////////////////////////////////////////////// |
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|
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#if USE_XIM |
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|
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static void |
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#if XIMCB_PROTO_BROKEN |
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im_destroy_cb (XIC unused1, XPointer client_data, XPointer unused3) |
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#else |
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im_destroy_cb (XIM unused1, XPointer client_data, XPointer unused3) |
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#endif |
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{ |
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rxvt_xim *xim = (rxvt_xim *)client_data; |
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rxvt_display *display = xim->display; |
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|
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xim->xim = 0; |
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|
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display->xims.erase (find (display->xims.begin (), display->xims.end (), xim)); |
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display->im_change_cb (); |
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} |
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|
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bool |
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rxvt_xim::ref_init () |
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{ |
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display = GET_R->display; //HACK: TODO |
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|
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xim = XOpenIM (display->dpy, 0, 0, 0); |
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|
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if (!xim) |
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return false; |
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|
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XIMCallback ximcallback; |
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ximcallback.client_data = (XPointer)this; |
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ximcallback.callback = im_destroy_cb; |
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|
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XSetIMValues (xim, XNDestroyCallback, &ximcallback, (char *)0); |
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|
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return true; |
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} |
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|
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rxvt_xim::~rxvt_xim () |
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{ |
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if (xim) |
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XCloseIM (xim); |
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} |
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|
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#endif |
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|
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///////////////////////////////////////////////////////////////////////////// |
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|
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#if XFT |
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rxvt_drawable::~rxvt_drawable () |
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{ |
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if (xftdrawable) |
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XftDrawDestroy (xftdrawable); |
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} |
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|
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rxvt_drawable::operator XftDraw *() |
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{ |
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if (!xftdrawable) |
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xftdrawable = XftDrawCreate (screen->dpy, drawable, screen->visual, screen->cmap); |
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|
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return xftdrawable; |
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} |
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#endif |
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|
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///////////////////////////////////////////////////////////////////////////// |
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|
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#if XFT |
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|
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// not strictly necessary as it is only used with superclass of zero_initialised |
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rxvt_screen::rxvt_screen () |
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: scratch_area (0) |
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{ |
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} |
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|
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rxvt_drawable &rxvt_screen::scratch_drawable (int w, int h) |
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{ |
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if (!scratch_area || w > scratch_w || h > scratch_h) |
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{ |
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if (scratch_area) |
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{ |
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XFreePixmap (dpy, scratch_area->drawable); |
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delete scratch_area; |
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} |
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|
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Pixmap pm = XCreatePixmap (dpy, RootWindowOfScreen (ScreenOfDisplay (dpy, display->screen)), |
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scratch_w = w, scratch_h = h, depth); |
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|
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scratch_area = new rxvt_drawable (this, pm); |
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} |
246 |
|
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return *scratch_area; |
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} |
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|
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#endif |
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|
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void |
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rxvt_screen::set (rxvt_display *disp) |
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{ |
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display = disp; |
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dpy = disp->dpy; |
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|
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Screen *screen = ScreenOfDisplay (dpy, disp->screen); |
259 |
|
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depth = DefaultDepthOfScreen (screen); |
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visual = DefaultVisualOfScreen (screen); |
262 |
cmap = DefaultColormapOfScreen (screen); |
263 |
} |
264 |
|
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#if ENABLE_FRILLS |
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|
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void |
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rxvt_screen::select_visual (int id) |
269 |
{ |
270 |
XVisualInfo vinfo; |
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vinfo.visualid = id; |
272 |
int n; |
273 |
|
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if (XVisualInfo *vi = XGetVisualInfo (dpy, VisualIDMask, &vinfo, &n)) |
275 |
{ |
276 |
depth = vi->depth; |
277 |
visual = vi->visual; |
278 |
|
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XFree (vi); |
280 |
|
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cmap = XCreateColormap (dpy, display->root, visual, AllocNone); |
282 |
} |
283 |
else |
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rxvt_warn ("cannot requested visual id 0x%02x, using default visual.\n", id); |
285 |
} |
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|
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void |
288 |
rxvt_screen::select_depth (int bitdepth) |
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{ |
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XVisualInfo vinfo; |
291 |
|
292 |
if (XMatchVisualInfo (dpy, display->screen, bitdepth, TrueColor, &vinfo)) |
293 |
select_visual (vinfo.visualid); |
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else |
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rxvt_warn ("no visual found for requested depth %d, using default visual.\n", bitdepth); |
296 |
} |
297 |
|
298 |
#endif |
299 |
|
300 |
void |
301 |
rxvt_screen::clear () |
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{ |
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#if XFT |
304 |
if (scratch_area) |
305 |
{ |
306 |
XFreePixmap (dpy, scratch_area->drawable); |
307 |
delete scratch_area; |
308 |
} |
309 |
#endif |
310 |
|
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if (cmap != DefaultColormapOfScreen (ScreenOfDisplay (dpy, display->screen))) |
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XFreeColormap (dpy, cmap); |
313 |
} |
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|
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///////////////////////////////////////////////////////////////////////////// |
316 |
|
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rxvt_display::rxvt_display (const char *id) |
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: refcounted (id) |
319 |
, selection_owner (0) |
320 |
, clipboard_owner (0) |
321 |
{ |
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x_ev .set<rxvt_display, &rxvt_display::x_cb > (this); |
323 |
flush_ev.set<rxvt_display, &rxvt_display::flush_cb> (this); |
324 |
} |
325 |
|
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XrmDatabase |
327 |
rxvt_display::get_resources (bool refresh) |
328 |
{ |
329 |
char *homedir = getenv ("HOME"); |
330 |
char fname[1024]; |
331 |
|
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/* |
333 |
* get resources using the X library function |
334 |
*/ |
335 |
char *displayResource, *xe; |
336 |
XrmDatabase rdb1, database = 0; |
337 |
|
338 |
#if !XLIB_ILLEGAL_ACCESS |
339 |
/* work around a bug in XrmSetDatabase where it frees the db, see ref_next */ |
340 |
database = XrmGetStringDatabase (""); |
341 |
#endif |
342 |
|
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// for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20 |
344 |
// as opposed to "standard practise", we always read in ~/.Xdefaults |
345 |
|
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// 6. System wide per application default file. |
347 |
|
348 |
/* Add in $XAPPLRESDIR/Rxvt only; not bothering with XUSERFILESEARCHPATH */ |
349 |
if ((xe = getenv ("XAPPLRESDIR"))) |
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{ |
351 |
snprintf (fname, sizeof (fname), "%s/%s", xe, RESCLASS); |
352 |
|
353 |
if ((rdb1 = XrmGetFileDatabase (fname))) |
354 |
XrmMergeDatabases (rdb1, &database); |
355 |
} |
356 |
|
357 |
// 5. User's per application default file. |
358 |
// none |
359 |
|
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// 4. User's defaults file. |
361 |
if (homedir) |
362 |
{ |
363 |
snprintf (fname, sizeof (fname), "%s/.Xdefaults", homedir); |
364 |
|
365 |
if ((rdb1 = XrmGetFileDatabase (fname))) |
366 |
XrmMergeDatabases (rdb1, &database); |
367 |
} |
368 |
|
369 |
/* Get any Xserver defaults */ |
370 |
if (refresh) |
371 |
{ |
372 |
// fucking xlib keeps a copy of the rm string |
373 |
Atom actual_type; |
374 |
int actual_format; |
375 |
unsigned long nitems, nremaining; |
376 |
char *val = 0; |
377 |
|
378 |
#if XLIB_ILLEGAL_ACCESS |
379 |
if (dpy->xdefaults) |
380 |
XFree (dpy->xdefaults); |
381 |
#endif |
382 |
|
383 |
if (XGetWindowProperty (dpy, RootWindow (dpy, 0), XA_RESOURCE_MANAGER, |
384 |
0L, 100000000L, False, |
385 |
XA_STRING, &actual_type, &actual_format, |
386 |
&nitems, &nremaining, |
387 |
(unsigned char **)&val) == Success |
388 |
&& actual_type == XA_STRING |
389 |
&& actual_format == 8) |
390 |
displayResource = val; |
391 |
else |
392 |
{ |
393 |
displayResource = 0; |
394 |
|
395 |
if (val) |
396 |
XFree (val); |
397 |
} |
398 |
|
399 |
#if XLIB_ILLEGAL_ACCESS |
400 |
dpy->xdefaults = displayResource; |
401 |
#endif |
402 |
} |
403 |
else |
404 |
displayResource = XResourceManagerString (dpy); |
405 |
|
406 |
if (displayResource) |
407 |
{ |
408 |
if ((rdb1 = XrmGetStringDatabase (displayResource))) |
409 |
XrmMergeDatabases (rdb1, &database); |
410 |
} |
411 |
|
412 |
#if !XLIB_ILLEGAL_ACCESS |
413 |
if (refresh && displayResource) |
414 |
XFree (displayResource); |
415 |
#endif |
416 |
|
417 |
/* Get screen specific resources */ |
418 |
displayResource = XScreenResourceString (ScreenOfDisplay (dpy, screen)); |
419 |
|
420 |
if (displayResource) |
421 |
{ |
422 |
if ((rdb1 = XrmGetStringDatabase (displayResource))) |
423 |
/* Merge with screen-independent resources */ |
424 |
XrmMergeDatabases (rdb1, &database); |
425 |
|
426 |
XFree (displayResource); |
427 |
} |
428 |
|
429 |
// 3. User's per host defaults file |
430 |
/* Add in XENVIRONMENT file */ |
431 |
if ((xe = getenv ("XENVIRONMENT")) |
432 |
&& (rdb1 = XrmGetFileDatabase (xe))) |
433 |
XrmMergeDatabases (rdb1, &database); |
434 |
else if (homedir) |
435 |
{ |
436 |
struct utsname un; |
437 |
|
438 |
if (!uname (&un)) |
439 |
{ |
440 |
snprintf (fname, sizeof (fname), "%s/.Xdefaults-%s", homedir, un.nodename); |
441 |
|
442 |
if ((rdb1 = XrmGetFileDatabase (fname))) |
443 |
XrmMergeDatabases (rdb1, &database); |
444 |
} |
445 |
} |
446 |
|
447 |
return database; |
448 |
} |
449 |
|
450 |
bool rxvt_display::ref_init () |
451 |
{ |
452 |
#ifdef LOCAL_X_IS_UNIX |
453 |
if (id[0] == ':') |
454 |
{ |
455 |
char *val = rxvt_temp_buf<char> (5 + strlen (id) + 1); |
456 |
|
457 |
strcpy (val, "unix/"); |
458 |
strcat (val, id); |
459 |
|
460 |
dpy = XOpenDisplay (val); |
461 |
} |
462 |
else |
463 |
#endif |
464 |
dpy = 0; |
465 |
|
466 |
if (!dpy) |
467 |
dpy = XOpenDisplay (id); |
468 |
|
469 |
if (!dpy) |
470 |
return false; |
471 |
|
472 |
screen = DefaultScreen (dpy); |
473 |
root = DefaultRootWindow (dpy); |
474 |
|
475 |
assert (ecb_array_length (xa_names) == NUM_XA); |
476 |
XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa); |
477 |
|
478 |
XrmSetDatabase (dpy, get_resources (false)); |
479 |
|
480 |
#ifdef POINTER_BLANK |
481 |
XColor blackcolour; |
482 |
blackcolour.red = 0; |
483 |
blackcolour.green = 0; |
484 |
blackcolour.blue = 0; |
485 |
Font f = XLoadFont (dpy, "fixed"); |
486 |
blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ', |
487 |
&blackcolour, &blackcolour); |
488 |
XUnloadFont (dpy, f); |
489 |
#endif |
490 |
|
491 |
flags = 0; |
492 |
#if XRENDER |
493 |
int major, minor; |
494 |
if (XRenderQueryVersion (dpy, &major, &minor)) |
495 |
if (major > 0 || (major == 0 && minor >= 10)) |
496 |
{ |
497 |
flags |= DISPLAY_HAS_RENDER; |
498 |
|
499 |
#if 0 |
500 |
if (major > 0 || (major == 0 && minor >= 11)) |
501 |
flags |= DISPLAY_HAS_RENDER_MUL; |
502 |
#endif |
503 |
|
504 |
if (XFilters *filters = XRenderQueryFilters (dpy, root)) |
505 |
{ |
506 |
for (int i = 0; i < filters->nfilter; i++) |
507 |
if (!strcmp (filters->filter [i], FilterConvolution)) |
508 |
flags |= DISPLAY_HAS_RENDER_CONV; |
509 |
|
510 |
XFree (filters); |
511 |
} |
512 |
} |
513 |
#endif |
514 |
|
515 |
int fd = XConnectionNumber (dpy); |
516 |
|
517 |
// try to detect whether we have a local connection. |
518 |
// assume unix domain socket == local, everything else not |
519 |
// TODO: might want to check for inet/127.0.0.1 |
520 |
is_local = 0; |
521 |
sockaddr_un sa; |
522 |
socklen_t sl = sizeof (sa); |
523 |
|
524 |
if (!getsockname (fd, (sockaddr *)&sa, &sl)) |
525 |
is_local = sa.sun_family == AF_UNIX; |
526 |
|
527 |
flush_ev.start (); |
528 |
x_ev.start (fd, ev::READ); |
529 |
fcntl (fd, F_SETFD, FD_CLOEXEC); |
530 |
|
531 |
XSelectInput (dpy, root, PropertyChangeMask); |
532 |
|
533 |
flush (); |
534 |
|
535 |
return true; |
536 |
} |
537 |
|
538 |
void |
539 |
rxvt_display::ref_next () |
540 |
{ |
541 |
// TODO: somehow check whether the database files/resources changed |
542 |
// before affording re-loading/parsing |
543 |
XrmDestroyDatabase (XrmGetDatabase (dpy)); |
544 |
#if XLIB_ILLEGAL_ACCESS |
545 |
/* work around a bug in XrmSetDatabase where it frees the db */ |
546 |
dpy->db = 0; |
547 |
#endif |
548 |
XrmSetDatabase (dpy, get_resources (true)); |
549 |
} |
550 |
|
551 |
rxvt_display::~rxvt_display () |
552 |
{ |
553 |
if (!dpy) |
554 |
return; |
555 |
|
556 |
#ifdef POINTER_BLANK |
557 |
XFreeCursor (dpy, blank_cursor); |
558 |
#endif |
559 |
x_ev.stop (); |
560 |
flush_ev.stop (); |
561 |
#if USE_XIM |
562 |
xims.clear (); |
563 |
#endif |
564 |
XrmDestroyDatabase (XrmGetDatabase (dpy)); |
565 |
XCloseDisplay (dpy); |
566 |
} |
567 |
|
568 |
#if USE_XIM |
569 |
void rxvt_display::im_change_cb () |
570 |
{ |
571 |
for (im_watcher **i = imw.begin (); i != imw.end (); ++i) |
572 |
(*i)->call (); |
573 |
} |
574 |
|
575 |
void rxvt_display::im_change_check () |
576 |
{ |
577 |
// try to only call im_change_cb when a new input method |
578 |
// registers, as xlib crashes due to a race otherwise. |
579 |
Atom actual_type, *atoms; |
580 |
int actual_format; |
581 |
unsigned long nitems, bytes_after; |
582 |
|
583 |
if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L, |
584 |
False, XA_ATOM, &actual_type, &actual_format, |
585 |
&nitems, &bytes_after, (unsigned char **)&atoms) |
586 |
!= Success) |
587 |
return; |
588 |
|
589 |
if (actual_type == XA_ATOM && actual_format == 32) |
590 |
for (int i = 0; i < nitems; i++) |
591 |
if (XGetSelectionOwner (dpy, atoms[i])) |
592 |
{ |
593 |
im_change_cb (); |
594 |
break; |
595 |
} |
596 |
|
597 |
XFree (atoms); |
598 |
} |
599 |
#endif |
600 |
|
601 |
void rxvt_display::x_cb (ev::io &w, int revents) |
602 |
{ |
603 |
flush_ev.start (); |
604 |
} |
605 |
|
606 |
void rxvt_display::flush_cb (ev::prepare &w, int revents) |
607 |
{ |
608 |
while (XEventsQueued (dpy, QueuedAfterFlush)) |
609 |
do |
610 |
{ |
611 |
XEvent xev; |
612 |
XNextEvent (dpy, &xev); |
613 |
|
614 |
#if USE_XIM |
615 |
if (!XFilterEvent (&xev, None)) |
616 |
{ |
617 |
if (xev.type == PropertyNotify |
618 |
&& xev.xany.window == root |
619 |
&& xev.xproperty.atom == xa[XA_XIM_SERVERS]) |
620 |
im_change_check (); |
621 |
#endif |
622 |
if (xev.type == MappingNotify) |
623 |
XRefreshKeyboardMapping (&xev.xmapping); |
624 |
|
625 |
for (int i = xw.size (); i--; ) |
626 |
{ |
627 |
if (!xw[i]) |
628 |
xw.erase_unordered (i); |
629 |
else if (xw[i]->window == xev.xany.window) |
630 |
xw[i]->call (xev); |
631 |
} |
632 |
#if USE_XIM |
633 |
} |
634 |
#endif |
635 |
} |
636 |
while (XEventsQueued (dpy, QueuedAlready)); |
637 |
|
638 |
w.stop (); |
639 |
} |
640 |
|
641 |
void rxvt_display::reg (xevent_watcher *w) |
642 |
{ |
643 |
if (!w->active) |
644 |
{ |
645 |
xw.push_back (w); |
646 |
w->active = xw.size (); |
647 |
} |
648 |
} |
649 |
|
650 |
void rxvt_display::unreg (xevent_watcher *w) |
651 |
{ |
652 |
if (w->active) |
653 |
{ |
654 |
xw[w->active - 1] = 0; |
655 |
w->active = 0; |
656 |
} |
657 |
} |
658 |
|
659 |
void rxvt_display::set_selection_owner (rxvt_term *owner, bool clipboard) |
660 |
{ |
661 |
rxvt_term * &cur_owner = !clipboard ? selection_owner : clipboard_owner; |
662 |
|
663 |
if (cur_owner && cur_owner != owner) |
664 |
{ |
665 |
rxvt_term *term = cur_owner; |
666 |
term->selection_clear (clipboard); |
667 |
term->flush (); |
668 |
} |
669 |
|
670 |
cur_owner = owner; |
671 |
} |
672 |
|
673 |
#if USE_XIM |
674 |
|
675 |
void rxvt_display::reg (im_watcher *w) |
676 |
{ |
677 |
imw.push_back (w); |
678 |
} |
679 |
|
680 |
void rxvt_display::unreg (im_watcher *w) |
681 |
{ |
682 |
imw.erase (find (imw.begin (), imw.end (), w)); |
683 |
} |
684 |
|
685 |
rxvt_xim *rxvt_display::get_xim (const char *locale, const char *modifiers) |
686 |
{ |
687 |
char *id; |
688 |
int l, m; |
689 |
|
690 |
l = strlen (locale); |
691 |
m = strlen (modifiers); |
692 |
|
693 |
if (!(id = rxvt_temp_buf<char> (l + m + 2))) |
694 |
return 0; |
695 |
|
696 |
memcpy (id, locale, l); id[l] = '\n'; |
697 |
memcpy (id + l + 1, modifiers, m); id[l + m + 1] = 0; |
698 |
|
699 |
rxvt_xim *xim = xims.get (id); |
700 |
|
701 |
return xim; |
702 |
} |
703 |
|
704 |
void rxvt_display::put_xim (rxvt_xim *xim) |
705 |
{ |
706 |
# if XLIB_IS_RACEFREE |
707 |
xims.put (xim); |
708 |
# endif |
709 |
} |
710 |
|
711 |
#endif |
712 |
|
713 |
Atom rxvt_display::atom (const char *name) |
714 |
{ |
715 |
return XInternAtom (dpy, name, False); |
716 |
} |
717 |
|
718 |
Pixmap |
719 |
rxvt_display::get_pixmap_property (Atom property) |
720 |
{ |
721 |
Pixmap pixmap = None; |
722 |
|
723 |
int aformat; |
724 |
unsigned long nitems, bytes_after; |
725 |
Atom atype; |
726 |
unsigned char *prop; |
727 |
int result = XGetWindowProperty (dpy, root, property, |
728 |
0L, 1L, False, XA_PIXMAP, &atype, &aformat, |
729 |
&nitems, &bytes_after, &prop); |
730 |
if (result == Success) |
731 |
{ |
732 |
if (atype == XA_PIXMAP) |
733 |
pixmap = *(Pixmap *)prop; |
734 |
XFree (prop); |
735 |
} |
736 |
|
737 |
return pixmap; |
738 |
} |
739 |
|
740 |
///////////////////////////////////////////////////////////////////////////// |
741 |
|
742 |
template class refcache<rxvt_display>; |
743 |
refcache<rxvt_display> displays; |
744 |
|
745 |
///////////////////////////////////////////////////////////////////////////// |
746 |
// |
747 |
|
748 |
static unsigned int |
749 |
insert_component (unsigned int value, unsigned int mask, unsigned int shift) |
750 |
{ |
751 |
return (value * (mask + 1) >> 16) << shift; |
752 |
} |
753 |
|
754 |
bool |
755 |
rxvt_color::alloc (rxvt_screen *screen, const rgba &color) |
756 |
{ |
757 |
//TODO: only supports 24 bit |
758 |
unsigned int alpha = color.a >= 0xff00 ? 0xffff : color.a; |
759 |
|
760 |
#if XFT |
761 |
XRenderPictFormat *format; |
762 |
|
763 |
// FUCKING Xft gets it wrong, of course, so work around it. |
764 |
// Transparency users should eat shit and die, and then |
765 |
// XRenderQueryPictIndexValues themselves plenty. |
766 |
if ((screen->visual->c_class == TrueColor) |
767 |
&& (format = XRenderFindVisualFormat (screen->dpy, screen->visual))) |
768 |
{ |
769 |
// the fun lies in doing everything manually... |
770 |
c.color.red = color.r; |
771 |
c.color.green = color.g; |
772 |
c.color.blue = color.b; |
773 |
c.color.alpha = alpha; |
774 |
|
775 |
// Xft wants premultiplied alpha, but abuses the alpha channel |
776 |
// as blend factor, and doesn't allow us to set the alpha channel |
777 |
c.color.red = c.color.red * alpha / 0xffff; |
778 |
c.color.green = c.color.green * alpha / 0xffff; |
779 |
c.color.blue = c.color.blue * alpha / 0xffff; |
780 |
|
781 |
c.pixel = insert_component (c.color.red , format->direct.redMask , format->direct.red ) |
782 |
| insert_component (c.color.green, format->direct.greenMask, format->direct.green) |
783 |
| insert_component (c.color.blue , format->direct.blueMask , format->direct.blue ) |
784 |
| insert_component (alpha , format->direct.alphaMask, format->direct.alpha); |
785 |
|
786 |
return true; |
787 |
} |
788 |
else |
789 |
{ |
790 |
XRenderColor d; |
791 |
|
792 |
d.red = color.r; |
793 |
d.green = color.g; |
794 |
d.blue = color.b; |
795 |
d.alpha = alpha; |
796 |
|
797 |
if (XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c)) |
798 |
return true; |
799 |
} |
800 |
#else |
801 |
c.red = color.r; |
802 |
c.green = color.g; |
803 |
c.blue = color.b; |
804 |
|
805 |
if (screen->visual->c_class == TrueColor) |
806 |
{ |
807 |
c.pixel = (color.r >> (16 - ecb_popcount32 (screen->visual->red_mask )) << ecb_ctz32 (screen->visual->red_mask )) |
808 |
| (color.g >> (16 - ecb_popcount32 (screen->visual->green_mask)) << ecb_ctz32 (screen->visual->green_mask)) |
809 |
| (color.b >> (16 - ecb_popcount32 (screen->visual->blue_mask )) << ecb_ctz32 (screen->visual->blue_mask )); |
810 |
|
811 |
return true; |
812 |
} |
813 |
else if (XAllocColor (screen->dpy, screen->cmap, &c)) |
814 |
return true; |
815 |
#endif |
816 |
|
817 |
c.pixel = (color.r + color.g + color.b) > 128*3 |
818 |
? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy)) |
819 |
: BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy)); |
820 |
|
821 |
return false; |
822 |
} |
823 |
|
824 |
bool |
825 |
rxvt_color::set (rxvt_screen *screen, const char *name) |
826 |
{ |
827 |
rgba c; |
828 |
char eos; |
829 |
int skip; |
830 |
|
831 |
c.a = rgba::MAX_CC; |
832 |
|
833 |
// parse the nonstandard "[alphapercent]" prefix |
834 |
if (1 <= sscanf (name, "[%hd]%n", &c.a, &skip)) |
835 |
{ |
836 |
c.a = lerp<int, int, int> (0, rgba::MAX_CC, c.a); |
837 |
name += skip; |
838 |
} |
839 |
|
840 |
// parse the non-standard "rgba:rrrr/gggg/bbbb/aaaa" format |
841 |
if (strlen (name) != 4+5*4 || 4 != sscanf (name, "rgba:%4hx/%4hx/%4hx/%4hx%c", &c.r, &c.g, &c.b, &c.a, &eos)) |
842 |
{ |
843 |
XColor xc; |
844 |
|
845 |
if (XParseColor (screen->dpy, screen->cmap, name, &xc)) |
846 |
{ |
847 |
c.r = xc.red; |
848 |
c.g = xc.green; |
849 |
c.b = xc.blue; |
850 |
} |
851 |
else |
852 |
{ |
853 |
c.r = 0xffff; |
854 |
c.g = 0x6969; |
855 |
c.b = 0xb4b4; |
856 |
|
857 |
rxvt_warn ("unable to parse color '%s', using pink instead.\n", name); |
858 |
} |
859 |
} |
860 |
|
861 |
return set (screen, c); |
862 |
} |
863 |
|
864 |
bool |
865 |
rxvt_color::set (rxvt_screen *screen, const rgba &color) |
866 |
{ |
867 |
bool got = alloc (screen, color); |
868 |
|
869 |
#if !ENABLE_MINIMAL |
870 |
int cmap_size = screen->visual->map_entries; |
871 |
|
872 |
if (!got |
873 |
&& screen->visual->c_class == PseudoColor |
874 |
&& cmap_size < 4096) |
875 |
{ |
876 |
XColor *colors = new XColor [screen->visual->map_entries]; |
877 |
|
878 |
for (int i = 0; i < cmap_size; i++) |
879 |
colors [i].pixel = i; |
880 |
|
881 |
// many kilobytes transfer per colour, but pseudocolor isn't worth |
882 |
// many extra optimisations. |
883 |
XQueryColors (screen->dpy, screen->cmap, colors, cmap_size); |
884 |
|
885 |
int diff = 0x7fffffffUL; |
886 |
XColor *best = colors; |
887 |
|
888 |
for (int i = 0; i < cmap_size; i++) |
889 |
{ |
890 |
int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2)) |
891 |
+ (squared_diff<int> (color.g >> 2, colors [i].green >> 2)) |
892 |
+ (squared_diff<int> (color.b >> 2, colors [i].blue >> 2)); |
893 |
|
894 |
if (d < diff) |
895 |
{ |
896 |
diff = d; |
897 |
best = colors + i; |
898 |
} |
899 |
} |
900 |
|
901 |
//rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n", |
902 |
// color.r, color.g, color.b, best->red, best->green, best->blue, diff); |
903 |
|
904 |
got = alloc (screen, rgba (best->red, best->green, best->blue)); |
905 |
|
906 |
delete [] colors; |
907 |
} |
908 |
#endif |
909 |
|
910 |
return got; |
911 |
} |
912 |
|
913 |
void |
914 |
rxvt_color::get (rgba &color) const |
915 |
{ |
916 |
#if XFT |
917 |
color.r = c.color.red; |
918 |
color.g = c.color.green; |
919 |
color.b = c.color.blue; |
920 |
color.a = c.color.alpha; |
921 |
#else |
922 |
color.r = c.red; |
923 |
color.g = c.green; |
924 |
color.b = c.blue; |
925 |
color.a = rgba::MAX_CC; |
926 |
#endif |
927 |
} |
928 |
|
929 |
void |
930 |
rxvt_color::get (XColor &color) const |
931 |
{ |
932 |
rgba c; |
933 |
get (c); |
934 |
|
935 |
color.red = c.r; |
936 |
color.green = c.g; |
937 |
color.blue = c.b; |
938 |
color.pixel = (Pixel)*this; |
939 |
} |
940 |
|
941 |
void |
942 |
rxvt_color::free (rxvt_screen *screen) |
943 |
{ |
944 |
if (screen->visual->c_class == TrueColor) |
945 |
return; // nothing to do |
946 |
|
947 |
#if XFT |
948 |
XftColorFree (screen->dpy, screen->visual, screen->cmap, &c); |
949 |
#else |
950 |
XFreeColors (screen->dpy, screen->cmap, &c.pixel, 1, AllPlanes); |
951 |
#endif |
952 |
} |
953 |
|
954 |
void |
955 |
rxvt_color::fade (rxvt_screen *screen, int percent, rxvt_color &result, const rgba &to) |
956 |
{ |
957 |
rgba c; |
958 |
get (c); |
959 |
|
960 |
result.set ( |
961 |
screen, |
962 |
rgba ( |
963 |
lerp (c.r, to.r, percent), |
964 |
lerp (c.g, to.g, percent), |
965 |
lerp (c.b, to.b, percent), |
966 |
lerp (c.a, to.a, percent) |
967 |
) |
968 |
); |
969 |
} |
970 |
|
971 |
rxvt_selection::rxvt_selection (rxvt_display *disp, int selnum, Time tm, Window win, Atom prop, rxvt_term *term) |
972 |
: display (disp), request_time (tm), request_win (win), request_prop (prop), term (term) |
973 |
{ |
974 |
assert (selnum >= Sel_Primary && selnum <= Sel_Clipboard); |
975 |
|
976 |
timer_ev.set<rxvt_selection, &rxvt_selection::timer_cb> (this); |
977 |
timer_ev.repeat = 10.; |
978 |
x_ev.set<rxvt_selection, &rxvt_selection::x_cb> (this); |
979 |
|
980 |
incr_buf = 0; |
981 |
incr_buf_size = incr_buf_fill = 0; |
982 |
selection_wait = Sel_normal; |
983 |
selection_type = selnum; |
984 |
cb_sv = 0; |
985 |
} |
986 |
|
987 |
void |
988 |
rxvt_selection::stop () |
989 |
{ |
990 |
free (incr_buf); |
991 |
incr_buf = 0; |
992 |
timer_ev.stop (); |
993 |
x_ev.stop (display); |
994 |
} |
995 |
|
996 |
rxvt_selection::~rxvt_selection () |
997 |
{ |
998 |
stop (); |
999 |
} |
1000 |
|
1001 |
void |
1002 |
rxvt_selection::run () |
1003 |
{ |
1004 |
int selnum = selection_type; |
1005 |
|
1006 |
#if ENABLE_FRILLS |
1007 |
if (selnum == Sel_Primary && display->selection_owner) |
1008 |
{ |
1009 |
/* internal selection */ |
1010 |
char *str = rxvt_wcstombs (display->selection_owner->selection.text, display->selection_owner->selection.len); |
1011 |
finish (str, strlen (str)); |
1012 |
free (str); |
1013 |
return; |
1014 |
} |
1015 |
#endif |
1016 |
|
1017 |
#if X_HAVE_UTF8_STRING |
1018 |
selection_type = Sel_UTF8String; |
1019 |
if (request (display->xa[XA_UTF8_STRING], selnum)) |
1020 |
return; |
1021 |
#else |
1022 |
selection_type = Sel_CompoundText; |
1023 |
if (request (display->xa[XA_COMPOUND_TEXT], selnum)) |
1024 |
return; |
1025 |
#endif |
1026 |
|
1027 |
// fallback to CUT_BUFFER0 if the requested property has no owner |
1028 |
handle_selection (display->root, XA_CUT_BUFFER0, false); |
1029 |
} |
1030 |
|
1031 |
void |
1032 |
rxvt_selection::finish (char *data, unsigned int len) |
1033 |
{ |
1034 |
if (!cb_sv) |
1035 |
{ |
1036 |
if (data) |
1037 |
term->paste (data, len); |
1038 |
|
1039 |
term->selection_req = 0; |
1040 |
delete this; |
1041 |
} |
1042 |
#if ENABLE_PERL |
1043 |
else |
1044 |
{ |
1045 |
stop (); // we do not really trust perl callbacks |
1046 |
rxvt_perl.selection_finish (this, data, len); |
1047 |
} |
1048 |
#endif |
1049 |
} |
1050 |
|
1051 |
bool |
1052 |
rxvt_selection::request (Atom target, int selnum) |
1053 |
{ |
1054 |
Atom sel; |
1055 |
|
1056 |
selection_type |= selnum; |
1057 |
|
1058 |
if (selnum == Sel_Primary) |
1059 |
sel = XA_PRIMARY; |
1060 |
else if (selnum == Sel_Secondary) |
1061 |
sel = XA_SECONDARY; |
1062 |
else |
1063 |
sel = display->xa[XA_CLIPBOARD]; |
1064 |
|
1065 |
if (XGetSelectionOwner (display->dpy, sel) != None) |
1066 |
{ |
1067 |
XConvertSelection (display->dpy, sel, target, request_prop, |
1068 |
request_win, request_time); |
1069 |
x_ev.start (display, request_win); |
1070 |
timer_ev.again (); |
1071 |
return true; |
1072 |
} |
1073 |
|
1074 |
return false; |
1075 |
} |
1076 |
|
1077 |
void |
1078 |
rxvt_selection::handle_selection (Window win, Atom prop, bool delete_prop) |
1079 |
{ |
1080 |
Display *dpy = display->dpy; |
1081 |
char *data = 0; |
1082 |
unsigned int data_len = 0; |
1083 |
unsigned long bytes_after; |
1084 |
XTextProperty ct; |
1085 |
|
1086 |
// check for failed XConvertSelection |
1087 |
if (prop == None) |
1088 |
{ |
1089 |
bool error = true; |
1090 |
int selnum = selection_type & Sel_whereMask; |
1091 |
|
1092 |
if (selection_type & Sel_CompoundText) |
1093 |
{ |
1094 |
selection_type = 0; |
1095 |
error = !request (XA_STRING, selnum); |
1096 |
} |
1097 |
|
1098 |
if (selection_type & Sel_UTF8String) |
1099 |
{ |
1100 |
selection_type = Sel_CompoundText; |
1101 |
error = !request (display->xa[XA_COMPOUND_TEXT], selnum); |
1102 |
} |
1103 |
|
1104 |
if (error) |
1105 |
{ |
1106 |
ct.value = 0; |
1107 |
goto bailout; |
1108 |
} |
1109 |
|
1110 |
return; |
1111 |
} |
1112 |
|
1113 |
// length == (2^31 - 1) / 4, as gdk |
1114 |
if (XGetWindowProperty (dpy, win, prop, |
1115 |
0, 0x1fffffff, |
1116 |
delete_prop, AnyPropertyType, |
1117 |
&ct.encoding, &ct.format, |
1118 |
&ct.nitems, &bytes_after, |
1119 |
&ct.value) != Success) |
1120 |
{ |
1121 |
ct.value = 0; |
1122 |
goto bailout; |
1123 |
} |
1124 |
|
1125 |
if (ct.encoding == None) |
1126 |
goto bailout; |
1127 |
|
1128 |
if (ct.value == 0) |
1129 |
goto bailout; |
1130 |
|
1131 |
if (ct.encoding == display->xa[XA_INCR]) |
1132 |
{ |
1133 |
// INCR selection, start handshake |
1134 |
if (!delete_prop) |
1135 |
XDeleteProperty (dpy, win, prop); |
1136 |
|
1137 |
selection_wait = Sel_incr; |
1138 |
timer_ev.again (); |
1139 |
|
1140 |
goto bailout; |
1141 |
} |
1142 |
|
1143 |
if (ct.nitems == 0) |
1144 |
{ |
1145 |
if (selection_wait == Sel_incr) |
1146 |
{ |
1147 |
XFree (ct.value); |
1148 |
|
1149 |
// finally complete, now paste the whole thing |
1150 |
selection_wait = Sel_normal; |
1151 |
ct.value = (unsigned char *)incr_buf; |
1152 |
ct.nitems = incr_buf_fill; |
1153 |
incr_buf = 0; |
1154 |
timer_ev.stop (); |
1155 |
} |
1156 |
else |
1157 |
{ |
1158 |
// avoid recursion |
1159 |
if (win != display->root || prop != XA_CUT_BUFFER0) |
1160 |
{ |
1161 |
XFree (ct.value); |
1162 |
|
1163 |
// fallback to CUT_BUFFER0 if the requested property |
1164 |
// has an owner but is empty |
1165 |
handle_selection (display->root, XA_CUT_BUFFER0, False); |
1166 |
return; |
1167 |
} |
1168 |
|
1169 |
goto bailout; |
1170 |
} |
1171 |
} |
1172 |
else if (selection_wait == Sel_incr) |
1173 |
{ |
1174 |
timer_ev.again (); |
1175 |
|
1176 |
while (incr_buf_fill + ct.nitems > incr_buf_size) |
1177 |
{ |
1178 |
incr_buf_size = incr_buf_size ? incr_buf_size * 2 : 128*1024; |
1179 |
incr_buf = (char *)rxvt_realloc (incr_buf, incr_buf_size); |
1180 |
} |
1181 |
|
1182 |
memcpy (incr_buf + incr_buf_fill, ct.value, ct.nitems); |
1183 |
incr_buf_fill += ct.nitems; |
1184 |
|
1185 |
goto bailout; |
1186 |
} |
1187 |
|
1188 |
char **cl; |
1189 |
int cr; |
1190 |
|
1191 |
// we honour the first item only |
1192 |
|
1193 |
#if !ENABLE_MINIMAL |
1194 |
// xlib is horribly broken with respect to UTF8_STRING, and nobody cares to fix it |
1195 |
// so recode it manually |
1196 |
if (ct.encoding == display->xa[XA_UTF8_STRING]) |
1197 |
{ |
1198 |
wchar_t *w = rxvt_utf8towcs ((const char *)ct.value, ct.nitems); |
1199 |
data = rxvt_wcstombs (w); |
1200 |
free (w); |
1201 |
} |
1202 |
else |
1203 |
#endif |
1204 |
if (XmbTextPropertyToTextList (dpy, &ct, &cl, &cr) >= 0 |
1205 |
&& cl) |
1206 |
{ |
1207 |
data = strdup (cl[0]); |
1208 |
XFreeStringList (cl); |
1209 |
} |
1210 |
else |
1211 |
{ |
1212 |
// paste raw |
1213 |
data = strdup ((const char *)ct.value); |
1214 |
} |
1215 |
|
1216 |
data_len = strlen (data); |
1217 |
|
1218 |
bailout: |
1219 |
XFree (ct.value); |
1220 |
|
1221 |
if (selection_wait == Sel_normal) |
1222 |
{ |
1223 |
finish (data, data_len); |
1224 |
free (data); |
1225 |
} |
1226 |
} |
1227 |
|
1228 |
void |
1229 |
rxvt_selection::timer_cb (ev::timer &w, int revents) |
1230 |
{ |
1231 |
if (selection_wait == Sel_incr) |
1232 |
rxvt_warn ("data loss: timeout on INCR selection paste, ignoring.\n"); |
1233 |
|
1234 |
finish (); |
1235 |
} |
1236 |
|
1237 |
void |
1238 |
rxvt_selection::x_cb (XEvent &xev) |
1239 |
{ |
1240 |
switch (xev.type) |
1241 |
{ |
1242 |
case PropertyNotify: |
1243 |
if (selection_wait == Sel_incr |
1244 |
&& xev.xproperty.atom == request_prop |
1245 |
&& xev.xproperty.state == PropertyNewValue) |
1246 |
handle_selection (xev.xproperty.window, xev.xproperty.atom, true); |
1247 |
break; |
1248 |
|
1249 |
case SelectionNotify: |
1250 |
if (selection_wait == Sel_normal |
1251 |
&& xev.xselection.time == request_time) |
1252 |
{ |
1253 |
timer_ev.stop (); |
1254 |
handle_selection (xev.xselection.requestor, xev.xselection.property, true); |
1255 |
} |
1256 |
break; |
1257 |
} |
1258 |
} |