// WinClient.cc for Fluxbox - an X11 Window manager // Copyright (c) 2003 - 2005 Henrik Kinnunen (fluxgen at fluxbox dot org) // // 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 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. // $Id$ #include "WinClient.hh" #include "Window.hh" #include "fluxbox.hh" #include "Screen.hh" #include "FbAtoms.hh" #include "Xutil.hh" #include "EventManager.hh" #include "FbTk/I18n.hh" #include "FbTk/MultLayers.hh" #include <iostream> #include <algorithm> #include <iterator> #include <memory> #ifdef HAVE_CASSERT #include <cassert> #else #include <assert.h> #endif using namespace std; WinClient::TransientWaitMap WinClient::s_transient_wait; WinClient::WinClient(Window win, BScreen &screen, FluxboxWindow *fbwin):FbTk::FbWindow(win), transient_for(0), window_group(0), x(0), y(0), old_bw(0), min_width(1), min_height(1), max_width(0), max_height(0), width_inc(1), height_inc(1), min_aspect_x(0), min_aspect_y(0), max_aspect_x(0), max_aspect_y(0), base_width(1), base_height(1), initial_state(0), normal_hint_flags(0), wm_hint_flags(0), m_win(fbwin), m_modal(0), send_focus_message(false), send_close_message(false), m_win_gravity(0), m_title(""), m_icon_title(""), m_class_name(""), m_instance_name(""), m_blackbox_hint(0), m_mwm_hint(0), m_focus_mode(F_PASSIVE), m_diesig(*this), m_screen(screen), m_strut(0) { updateWMProtocols(); updateBlackboxHints(); updateMWMHints(); updateWMHints(); updateWMNormalHints(); updateWMClassHint(); updateTitle(); updateIconTitle(); Fluxbox::instance()->saveWindowSearch(win, this); if (window_group != None) Fluxbox::instance()->saveGroupSearch(window_group, this); // search for this in transient waiting list if (s_transient_wait.find(win) != s_transient_wait.end()) { // Found transients that are waiting for this. // For each transient that waits call updateTransientInfo for_each(s_transient_wait[win].begin(), s_transient_wait[win].end(), mem_fun(&WinClient::updateTransientInfo)); // clear transient waiting list for this window s_transient_wait.erase(win); } } WinClient::~WinClient() { #ifdef DEBUG cerr<<__FILE__<<"(~"<<__FUNCTION__<<")[this="<<this<<"]"<<endl; #endif // DEBUG FbTk::EventManager::instance()->remove(window()); clearStrut(); if (m_win != 0) m_win->removeClient(*this); // this takes care of any focus issues m_diesig.notify(); Fluxbox *fluxbox = Fluxbox::instance(); // // clear transients and transient_for // if (transient_for != 0) { assert(transient_for != this); transient_for->transientList().remove(this); transient_for = 0; } while (!transients.empty()) { transients.back()->transient_for = 0; transients.pop_back(); } // This fixes issue 1 (see WinClient.hh): // If transients die before the transient_for is created removeTransientFromWaitingList(); s_transient_wait.erase(window()); screen().removeNetizen(window()); if (window_group != 0) { fluxbox->removeGroupSearch(window_group); window_group = 0; } if (m_mwm_hint != 0) XFree(m_mwm_hint); if (m_blackbox_hint != 0) XFree(m_blackbox_hint); if (window()) fluxbox->removeWindowSearch(window()); m_win = 0; } bool WinClient::acceptsFocus() const { return (m_focus_mode == F_LOCALLYACTIVE || m_focus_mode == F_PASSIVE || m_focus_mode == F_GLOBALLYACTIVE && send_focus_message); } bool WinClient::sendFocus() { if (!send_focus_message) return false; #ifdef DEBUG cerr<<"WinClient::"<<__FUNCTION__<<": this = "<<this<< " window = 0x"<<hex<<window()<<dec<<endl; #endif // DEBUG // setup focus msg XEvent ce; ce.xclient.type = ClientMessage; ce.xclient.message_type = FbAtoms::instance()->getWMProtocolsAtom(); ce.xclient.display = display(); ce.xclient.window = window(); ce.xclient.format = 32; ce.xclient.data.l[0] = FbAtoms::instance()->getWMTakeFocusAtom(); ce.xclient.data.l[1] = Fluxbox::instance()->getLastTime(); ce.xclient.data.l[2] = 0l; ce.xclient.data.l[3] = 0l; ce.xclient.data.l[4] = 0l; // send focus msg XSendEvent(display(), window(), false, NoEventMask, &ce); return true; } void WinClient::sendClose(bool forceful) { if (forceful || !send_close_message) XKillClient(display(), window()); else { // send WM_DELETE message // fill in XClientMessage structure for delete message XEvent ce; ce.xclient.type = ClientMessage; ce.xclient.message_type = FbAtoms::instance()->getWMProtocolsAtom(); ce.xclient.display = display(); ce.xclient.window = window(); ce.xclient.format = 32; ce.xclient.data.l[0] = FbAtoms::instance()->getWMDeleteAtom(); ce.xclient.data.l[1] = CurrentTime; ce.xclient.data.l[2] = 0l; ce.xclient.data.l[3] = 0l; ce.xclient.data.l[4] = 0l; // send event delete message to client window XSendEvent(display(), window(), false, NoEventMask, &ce); } } bool WinClient::getAttrib(XWindowAttributes &attr) const { return XGetWindowAttributes(display(), window(), &attr); } bool WinClient::getWMName(XTextProperty &textprop) const { return XGetWMName(display(), window(), &textprop); } bool WinClient::getWMIconName(XTextProperty &textprop) const { return XGetWMName(display(), window(), &textprop); } const std::string &WinClient::getWMClassName() const { return m_instance_name; } const std::string &WinClient::getWMClassClass() const { return m_class_name; } void WinClient::updateWMClassHint() { XClassHint ch; if (XGetClassHint(display(), window(), &ch) == 0) { #ifdef DEBUG cerr<<"WinClient: Failed to read class hint!"<<endl; #endif //DEBUG } else { if (ch.res_name != 0) { m_instance_name = const_cast<char *>(ch.res_name); XFree(ch.res_name); ch.res_name = 0; } else m_instance_name = ""; if (ch.res_class != 0) { m_class_name = const_cast<char *>(ch.res_class); XFree(ch.res_class); ch.res_class = 0; } else m_class_name = ""; } } void WinClient::updateTransientInfo() { #ifdef DEBUG cerr<<__FUNCTION__<<": m_win = "<<m_win<<endl; #endif // DEBUG if (m_win == 0) return; // remove this from parent if (transientFor() != 0) { transientFor()->transientList().remove(this); } transient_for = 0; // determine if this is a transient window Window win = 0; if (!XGetTransientForHint(display(), window(), &win)) { #ifdef DEBUG cerr<<__FUNCTION__<<": window() = 0x"<<hex<<window()<<dec<<"Failed to read transient for hint."<<endl; #endif // DEBUG return; } // we can't be transient to ourself if (win == window()) { #ifdef DEBUG cerr<<__FUNCTION__<<": transient to ourself"<<endl; #endif // DEBUG return; } if (win != None && m_win->screen().rootWindow() == win) { // transient for root window... = transient for group // I don't think we are group-aware yet return; } transient_for = Fluxbox::instance()->searchWindow(win); // if we did not find a transient WinClient but still // have a transient X window, then we have to put the // X transient_for window in a waiting list and update this clients transient // list later when the transient_for has a Winclient if (!transient_for) { // We might also already waiting for an old transient_for; // // this call fixes issue 2: // If transients changes to new transient_for before the old transient_for is created. // (see comment in WinClient.hh) // removeTransientFromWaitingList(); s_transient_wait[win].push_back(this); } #ifdef DEBUG cerr<<__FUNCTION__<<": transient_for window = 0x"<<hex<<win<<dec<<endl; cerr<<__FUNCTION__<<": transient_for = "<<transient_for<<endl; #endif // DEBUG // make sure we don't have deadlock loop in transient chain for (WinClient *w = this; w != 0; w = w->transient_for) { if (w == w->transient_for) { w->transient_for = 0; break; } } if (transientFor() != 0) { // we need to add ourself to the right client in // the transientFor() window so we search client transient_for->transientList().push_back(this); if (transientFor()->fbwindow() && transientFor()->fbwindow()->isStuck()) m_win->stick(); } } void WinClient::updateTitle() { // why 512? very very long wmnames seem to either // crash fluxbox or to make it have high cpuload // see also: // http://www.securityfocus.com/archive/1/382398/2004-11-24/2004-11-30/2 // // TODO: - find out why this mostly happens when using xft-fonts // - why other windowmanagers (pekwm/pwm3/openbox etc) are // also influenced // // the limitation to 512 chars only avoids running in that trap m_title = string(Xutil::getWMName(window()), 0, 512); } void WinClient::updateIconTitle() { XTextProperty text_prop; char **list = 0; int num = 0; if (getWMIconName(text_prop)) { if (text_prop.value && text_prop.nitems > 0) { if (text_prop.encoding != XA_STRING) { text_prop.nitems = strlen((char *) text_prop.value); if (XmbTextPropertyToTextList(display(), &text_prop, &list, &num) == Success && num > 0 && *list) { m_icon_title = (char *)*list; XFreeStringList(list); } else m_icon_title = text_prop.value ? (char *)text_prop.value : ""; } else m_icon_title = text_prop.value ? (char *)text_prop.value : ""; if (text_prop.value) XFree((char *) text_prop.value); } else m_icon_title = title(); } else m_icon_title = title(); } void WinClient::saveBlackboxAttribs(FluxboxWindow::BlackboxAttributes &blackbox_attribs) { changeProperty(FbAtoms::instance()->getFluxboxAttributesAtom(), XA_CARDINAL, 32, PropModeReplace, (unsigned char *)&blackbox_attribs, FluxboxWindow::PropBlackboxAttributesElements ); } void WinClient::setFluxboxWindow(FluxboxWindow *win) { m_win = win; } void WinClient::updateBlackboxHints() { int format; Atom atom_return; unsigned long num, len; FbAtoms *atoms = FbAtoms::instance(); if (m_blackbox_hint) { XFree(m_blackbox_hint); m_blackbox_hint = 0; } if (property(atoms->getFluxboxHintsAtom(), 0, PropBlackboxHintsElements, False, atoms->getFluxboxHintsAtom(), &atom_return, &format, &num, &len, (unsigned char **) &m_blackbox_hint) && m_blackbox_hint) { if (num != (unsigned)PropBlackboxHintsElements) { XFree(m_blackbox_hint); m_blackbox_hint = 0; } } } void WinClient::updateMWMHints() { int format; Atom atom_return; unsigned long num = 0, len = 0; if (m_mwm_hint) { XFree(m_mwm_hint); m_mwm_hint = 0; } Atom motif_wm_hints = FbAtoms::instance()->getMWMHintsAtom(); if (!(property(motif_wm_hints, 0, PropMwmHintsElements, false, motif_wm_hints, &atom_return, &format, &num, &len, (unsigned char **) &m_mwm_hint) && m_mwm_hint)) { if (num != static_cast<unsigned int>(PropMwmHintsElements)) { XFree(m_mwm_hint); m_mwm_hint = 0; return; } } } void WinClient::updateWMHints() { XWMHints *wmhint = XGetWMHints(display(), window()); if (! wmhint) { m_focus_mode = F_PASSIVE; window_group = None; initial_state = NormalState; } else { wm_hint_flags = wmhint->flags; /* * ICCCM 4.1.7 *--------------------------------------------- * Input Model Input Field WM_TAKE_FOCUS *--------------------------------------------- * No Input False Absent * Passive True Absent * Locally Active True Present * Globally Active False Present *--------------------------------------------- * Here: WM_TAKE_FOCUS = send_focus_message * Input Field = wmhint->input * Input Model = m_focus_mode */ if (wmhint->flags & InputHint) { if (wmhint->input) { if (send_focus_message) m_focus_mode = F_LOCALLYACTIVE; else m_focus_mode = F_PASSIVE; } else { if (send_focus_message) m_focus_mode = F_GLOBALLYACTIVE; else m_focus_mode = F_NOINPUT; } } else // InputHint not present: ignoring send_focus_message and assuming F_PASSIVE m_focus_mode = F_PASSIVE; if (wmhint->flags & StateHint) initial_state = wmhint->initial_state; else initial_state = NormalState; if (wmhint->flags & WindowGroupHint) { if (! window_group) window_group = wmhint->window_group; } else window_group = None; XFree(wmhint); } } void WinClient::updateWMNormalHints() { long icccm_mask; XSizeHints sizehint; if (! XGetWMNormalHints(display(), window(), &sizehint, &icccm_mask)) { min_width = min_height = base_width = base_height = width_inc = height_inc = 1; max_width = 0; // unbounded max_height = 0; min_aspect_x = min_aspect_y = max_aspect_x = max_aspect_y = 0; m_win_gravity = NorthWestGravity; } else { normal_hint_flags = sizehint.flags; if (sizehint.flags & PMinSize) { min_width = sizehint.min_width; min_height = sizehint.min_height; if (!(sizehint.flags & PBaseSize)) { base_width = min_width; base_height = min_height; } } else { min_width = min_height = 1; base_width = base_height = 0; } if (sizehint.flags & PBaseSize) { base_width = sizehint.base_width; base_height = sizehint.base_height; if (!(sizehint.flags & PMinSize)) { min_width = base_width; min_height = base_height; } } // default set in PMinSize if (sizehint.flags & PMaxSize) { max_width = sizehint.max_width; max_height = sizehint.max_height; } else { max_width = 0; // unbounded max_height = 0; } if (sizehint.flags & PResizeInc) { width_inc = sizehint.width_inc; height_inc = sizehint.height_inc; } else width_inc = height_inc = 1; if (sizehint.flags & PAspect) { min_aspect_x = sizehint.min_aspect.x; min_aspect_y = sizehint.min_aspect.y; max_aspect_x = sizehint.max_aspect.x; max_aspect_y = sizehint.max_aspect.y; } else min_aspect_x = min_aspect_y = max_aspect_x = max_aspect_y = 0; if (sizehint.flags & PWinGravity) m_win_gravity = sizehint.win_gravity; else m_win_gravity = NorthWestGravity; } } Window WinClient::getGroupLeftWindow() const { int format; Atom atom_return; unsigned long num = 0, len = 0; Atom group_left_hint = XInternAtom(display(), "_FLUXBOX_GROUP_LEFT", False); Window *data = 0; if (property(group_left_hint, 0, 1, false, XA_WINDOW, &atom_return, &format, &num, &len, (unsigned char **) &data) && data) { if (num != 1) { XFree(data); return None; } else { Window ret = *data; XFree(data); return ret; } } return None; } void WinClient::setGroupLeftWindow(Window win) { Atom group_left_hint = XInternAtom(display(), "_FLUXBOX_GROUP_LEFT", False); changeProperty(group_left_hint, XA_WINDOW, 32, PropModeReplace, (unsigned char *) &win, 1); } bool WinClient::hasGroupLeftWindow() const { // try to find _FLUXBOX_GROUP_LEFT atom in window // if we have one then we have a group left window int format; Atom atom_return; unsigned long num = 0, len = 0; Atom group_left_hint = XInternAtom(display(), "_FLUXBOX_GROUP_LEFT", False); Window *data = 0; if (property(group_left_hint, 0, 1, false, XA_WINDOW, &atom_return, &format, &num, &len, (unsigned char **) &data) && data) { XFree(data); if (num != 1) return false; else return true; } return false; } void WinClient::addModal() { ++m_modal; if (transient_for) transient_for->addModal(); } void WinClient::removeModal() { --m_modal; if (transient_for) transient_for->removeModal(); } bool WinClient::validateClient() const { FbTk::App::instance()->sync(false); XEvent e; if (( XCheckTypedWindowEvent(display(), window(), DestroyNotify, &e) || XCheckTypedWindowEvent(display(), window(), UnmapNotify, &e)) && XPutBackEvent(display(), &e)) { Fluxbox::instance()->ungrab(); return false; } return true; } void WinClient::setStrut(Strut *strut) { clearStrut(); m_strut = strut; } void WinClient::clearStrut() { if (m_strut != 0) { screen().clearStrut(m_strut); screen().updateAvailableWorkspaceArea(); m_strut = 0; } } bool WinClient::focus() { if (m_win == 0) return false; else return m_win->setCurrentClient(*this, true); } void WinClient::updateWMProtocols() { Atom *proto = 0; int num_return = 0; FbAtoms *fbatoms = FbAtoms::instance(); if (XGetWMProtocols(display(), window(), &proto, &num_return)) { // defaults send_focus_message = false; send_close_message = false; // could be added to netizens twice... for (int i = 0; i < num_return; ++i) { if (proto[i] == fbatoms->getWMDeleteAtom()) send_close_message = true; else if (proto[i] == fbatoms->getWMTakeFocusAtom()) send_focus_message = true; else if (proto[i] == fbatoms->getFluxboxStructureMessagesAtom()) screen().addNetizen(window()); } XFree(proto); if (m_win) m_win->updateFunctions(); #ifdef DEBUG } else { cerr<<"Warning: Failed to read WM Protocols. "<<endl; #endif // DEBUG } } /* For aspect ratios Note that its slightly simplified in that only the line gradient is given - this is because for aspect ratios, we always have the line going through the origin * Based on this formula: http://astronomy.swin.edu.au/~pbourke/geometry/pointline/ Note that a gradient from origin goes through ( grad , 1 ) */ void closestPointToLine(double &ret_x, double &ret_y, double point_x, double point_y, double gradient) { double u = (point_x * gradient + point_y) / (gradient*gradient + 1); ret_x = u*gradient; ret_y = u; } /** * Changes width and height to the nearest (lower) value * that conforms to it's size hints. * * display_* give the values that would be displayed * to the user when resizing. * We use pointers for display_* since they are optional. * * See ICCCM section 4.1.2.3 */ void WinClient::applySizeHints(int &width, int &height, int *display_width, int *display_height) { int i = width, j = height; // Check minimum size if (width < 0 || width < static_cast<signed>(min_width)) width = min_width; if (height < 0 || height < static_cast<signed>(min_height)) height = min_height; // Check maximum size if (max_width > 0 && width > static_cast<signed>(max_width)) width = max_width; if (max_height > 0 && height > static_cast<signed>(max_height)) height = max_height; // we apply aspect ratios before incrementals // Too difficult to exactly satisfy both incremental+aspect // in most situations // (they really shouldn't happen at the same time anyway). /* aspect ratios are applied exclusive to the base_width * * min_aspect_x width max_aspect_x * ------------ < ------- < ------------ * min_aspect_y height max_aspect_y * * beware of integer maximum (so I'll use doubles instead and divide) * * The trick is how to get back to the aspect ratio with minimal * change - do we modify x, y or both? * A: we minimise the distance between the current point, and * the target aspect ratio (consider them as x,y coordinates) * Consider that the aspect ratio is a line, and the current * w/h is a point, so we're just using the formula for * shortest distance from a point to a line! */ if (min_aspect_y > 0 && max_aspect_y > 0 && (height - base_height) > 0) { double widthd = static_cast<double>(width - base_width); double heightd = static_cast<double>(height - base_height); double min = static_cast<double>(min_aspect_x) / static_cast<double>(min_aspect_y); double max = static_cast<double>(max_aspect_x) / static_cast<double>(max_aspect_y); double actual = widthd / heightd; if (max > 0 && min > 0 && actual > 0) { // don't even try otherwise bool changed = false; if (actual < min) { changed = true; closestPointToLine(widthd, heightd, widthd, heightd, min); } else if (actual > max) { changed = true; closestPointToLine(widthd, heightd, widthd, heightd, max); } if (changed) { width = static_cast<int>(widthd) + base_width; height = static_cast<int>(heightd) + base_height; } } } // enforce incremental size limits, wrt base size // only calculate this if we really need to i = (width - base_width) / width_inc; width = i*width_inc + base_width; j = (height - base_height) / height_inc; height = j*height_inc + base_height; if (display_width) *display_width = i; if (display_height) *display_height = j; } void WinClient::removeTransientFromWaitingList() { // holds the windows that dont have empty // transient waiting list std::list<Window> remove_list; // The worst case complexity is huge, but since we usually do not (virtualy never) // have a large transient waiting list the time spent here is neglectable TransientWaitMap::iterator t_it = s_transient_wait.begin(); TransientWaitMap::iterator t_it_end = s_transient_wait.end(); for (; t_it != t_it_end; ++t_it) { (*t_it).second.remove(this); // if the list is empty, add it to remove list // so we can erase it later if ((*t_it).second.empty()) remove_list.push_back((*t_it).first); } // erase empty waiting lists std::list<Window>::iterator it = remove_list.begin(); std::list<Window>::iterator it_end = remove_list.end(); for (; it != it_end; ++it) s_transient_wait.erase(*it); }