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2977 lines (2671 loc) · 96.3 KB
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/*
* client.c - client management
*
* Copyright © 2007-2009 Julien Danjou <julien@danjou.info>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
/** awesome client API
*
* Furthermore to the classes described here, one can also use signals as
* described in @{signals} and X properties as described in @{xproperties}.
*
* Some signal names are starting with a dot. These dots are artefacts from
* the documentation generation, you get the real signal name by
* removing the starting dot.
*
* @author Julien Danjou <julien@danjou.info>
* @copyright 2008-2009 Julien Danjou
* @release @AWESOME_VERSION@
* @classmod client
*/
#include "objects/client.h"
#include "common/atoms.h"
#include "common/xutil.h"
#include "event.h"
#include "ewmh.h"
#include "objects/drawable.h"
#include "objects/screen.h"
#include "objects/tag.h"
#include "property.h"
#include "spawn.h"
#include "systray.h"
#include "xwindow.h"
#include <xcb/xcb_atom.h>
#include <xcb/shape.h>
#include <cairo-xcb.h>
/** Client class.
*
* @table class
* @field focus The focused `client.object`.
*/
/** Client object.
*
* @field window The X window id.
* @field name The client title.
* @field skip_taskbar True if the client does not want to be in taskbar.
* @field type The window type (desktop, normal, dock, …).
* @field class The client class.
* @field instance The client instance.
* @field pid The client PID, if available.
* @field role The window role, if available.
* @field machine The machine client is running on.
* @field icon_name The client name when iconified.
* @field icon The client icon.
* @field screen Client screen.
* @field hidden Define if the client must be hidden, i.e. never mapped,
* invisible in taskbar.
* @field minimized Define it the client must be iconify, i.e. only visible in
* taskbar.
* @field size_hints_honor Honor size hints, i.e. respect size ratio.
* @field border_width The client border width.
* @field border_color The client border color.
* @field urgent The client urgent state.
* @field content An image representing the client window content (screenshot).
* @field opacity The client opacity between 0 and 1.
* @field ontop The client is on top of every other windows.
* @field above The client is above normal windows.
* @field below The client is below normal windows.
* @field fullscreen The client is fullscreen or not.
* @field maximized The client is maximized (horizontally and vertically) or not.
* @field maximized_horizontal The client is maximized horizontally or not.
* @field maximized_vertical The client is maximized vertically or not.
* @field transient_for The client the window is transient for.
* @field group_window Window identification unique to a group of windows.
* @field leader_window Identification unique to windows spawned by the same command.
* @field size_hints A table with size hints of the client: `user_position`,
* `user_size`, `program_position`, `program_size`, etc.
* @field sticky Set the client sticky, i.e. available on all tags.
* @field modal Indicate if the client is modal.
* @field focusable True if the client can receive the input focus.
* @field shape_bounding The client's bounding shape as set by awesome as a (native) cairo surface.
* @field shape_clip The client's clip shape as set by awesome as a (native) cairo surface.
* @field shape_client_bounding The client's bounding shape as set by the program as a (native) cairo surface.
* @field shape_client_clip The client's clip shape as set by the program as a (native) cairo surface.
* @field startup_id The FreeDesktop StartId.
* @field valid If the client that this object refers to is still managed by awesome.
* @field first_tag The first tag of the client. Optimized form of `c:tags()[1]`.
* @table object
*/
/** Return client struts (reserved space at the edge of the screen).
*
* @param struts A table with new strut values, or none.
* @return A table with strut values.
* @function struts
*/
/** Get or set mouse buttons bindings for a client.
*
* @param buttons_table An array of mouse button bindings objects, or nothing.
* @return A table with all buttons.
* @function buttons
*/
/** Get the number of instances.
*
* @return The number of client objects alive.
* @function instances
*/
static area_t titlebar_get_area(client_t *c, client_titlebar_t bar);
static drawable_t *titlebar_get_drawable(lua_State *L, client_t *c, int cl_idx, client_titlebar_t bar);
static void client_resize_do(client_t *c, area_t geometry, bool force_notice);
/** Collect a client.
* \param L The Lua VM state.
* \return The number of element pushed on stack.
*/
static void
client_wipe(client_t *c)
{
key_array_wipe(&c->keys);
xcb_icccm_get_wm_protocols_reply_wipe(&c->protocols);
p_delete(&c->machine);
p_delete(&c->class);
p_delete(&c->instance);
p_delete(&c->icon_name);
p_delete(&c->alt_icon_name);
p_delete(&c->name);
p_delete(&c->alt_name);
p_delete(&c->startup_id);
if(c->icon)
cairo_surface_destroy(c->icon);
}
/** Change the clients urgency flag.
* \param L The Lua VM state.
* \param cidx The client index on the stack.
* \param urgent The new flag state.
*/
void
client_set_urgent(lua_State *L, int cidx, bool urgent)
{
client_t *c = luaA_checkudata(L, cidx, &client_class);
if(c->urgent != urgent)
{
xcb_get_property_cookie_t hints =
xcb_icccm_get_wm_hints_unchecked(globalconf.connection, c->window);
c->urgent = urgent;
/* update ICCCM hints */
xcb_icccm_wm_hints_t wmh;
xcb_icccm_get_wm_hints_reply(globalconf.connection, hints, &wmh, NULL);
if(urgent)
wmh.flags |= XCB_ICCCM_WM_HINT_X_URGENCY;
else
wmh.flags &= ~XCB_ICCCM_WM_HINT_X_URGENCY;
xcb_icccm_set_wm_hints(globalconf.connection, c->window, &wmh);
luaA_object_emit_signal(L, cidx, "property::urgent", 0);
}
}
#define DO_CLIENT_SET_PROPERTY(prop) \
void \
client_set_##prop(lua_State *L, int cidx, fieldtypeof(client_t, prop) value) \
{ \
client_t *c = luaA_checkudata(L, cidx, &client_class); \
if(c->prop != value) \
{ \
c->prop = value; \
luaA_object_emit_signal(L, cidx, "property::" #prop, 0); \
} \
}
DO_CLIENT_SET_PROPERTY(group_window)
DO_CLIENT_SET_PROPERTY(type)
DO_CLIENT_SET_PROPERTY(transient_for)
DO_CLIENT_SET_PROPERTY(pid)
DO_CLIENT_SET_PROPERTY(skip_taskbar)
#undef DO_CLIENT_SET_PROPERTY
#define DO_CLIENT_SET_STRING_PROPERTY2(prop, signal) \
void \
client_set_##prop(lua_State *L, int cidx, char *value) \
{ \
client_t *c = luaA_checkudata(L, cidx, &client_class); \
if (A_STREQ(c->prop, value)) \
{ \
p_delete(&value); \
return; \
} \
p_delete(&c->prop); \
c->prop = value; \
luaA_object_emit_signal(L, cidx, "property::" #signal, 0); \
}
#define DO_CLIENT_SET_STRING_PROPERTY(prop) \
DO_CLIENT_SET_STRING_PROPERTY2(prop, prop)
DO_CLIENT_SET_STRING_PROPERTY(name)
DO_CLIENT_SET_STRING_PROPERTY2(alt_name, name)
DO_CLIENT_SET_STRING_PROPERTY(icon_name)
DO_CLIENT_SET_STRING_PROPERTY2(alt_icon_name, icon_name)
DO_CLIENT_SET_STRING_PROPERTY(role)
DO_CLIENT_SET_STRING_PROPERTY(machine)
#undef DO_CLIENT_SET_STRING_PROPERTY
void
client_set_class_instance(lua_State *L, int cidx, const char *class, const char *instance)
{
client_t *c = luaA_checkudata(L, cidx, &client_class);
p_delete(&c->class);
p_delete(&c->instance);
c->class = a_strdup(class);
luaA_object_emit_signal(L, cidx, "property::class", 0);
c->instance = a_strdup(instance);
luaA_object_emit_signal(L, cidx, "property::instance", 0);
}
/** Returns true if a client is tagged with one of the active tags.
* \param c The client to check.
* \return true if the client is visible, false otherwise.
*/
bool
client_on_selected_tags(client_t *c)
{
if(c->sticky)
return true;
foreach(tag, globalconf.tags)
if(tag_get_selected(*tag) && is_client_tagged(c, *tag))
return true;
return false;
}
/** Get a client by its window.
* \param w The client window to find.
* \return A client pointer if found, NULL otherwise.
*/
client_t *
client_getbywin(xcb_window_t w)
{
foreach(c, globalconf.clients)
if((*c)->window == w)
return *c;
return NULL;
}
/** Get a client by its frame window.
* \param w The client window to find.
* \return A client pointer if found, NULL otherwise.
*/
client_t *
client_getbyframewin(xcb_window_t w)
{
foreach(c, globalconf.clients)
if((*c)->frame_window == w)
return *c;
return NULL;
}
/** Unfocus a client (internal).
* \param c The client.
*/
static void
client_unfocus_internal(client_t *c)
{
lua_State *L = globalconf_get_lua_State();
globalconf.focus.client = NULL;
luaA_object_push(L, c);
luaA_object_emit_signal(L, -1, "unfocus", 0);
lua_pop(L, 1);
}
/** Unfocus a client.
* \param c The client.
*/
static void
client_unfocus(client_t *c)
{
client_unfocus_internal(c);
globalconf.focus.need_update = true;
}
/** Check if client supports atom a protocol in WM_PROTOCOL.
* \param c The client.
* \param atom The protocol atom to check for.
* \return True if client has the atom in protocol, false otherwise.
*/
bool
client_hasproto(client_t *c, xcb_atom_t atom)
{
for(uint32_t i = 0; i < c->protocols.atoms_len; i++)
if(c->protocols.atoms[i] == atom)
return true;
return false;
}
/** Prepare banning a client by running all needed lua events.
* \param c The client.
*/
void client_ban_unfocus(client_t *c)
{
/* Wait until the last moment to take away the focus from the window. */
if(globalconf.focus.client == c)
client_unfocus(c);
}
/** Ban client and move it out of the viewport.
* \param c The client.
*/
void
client_ban(client_t *c)
{
if(!c->isbanned)
{
xcb_unmap_window(globalconf.connection, c->frame_window);
c->isbanned = true;
client_ban_unfocus(c);
}
}
/** This is part of The Bob Marley Algorithm: we ignore enter and leave window
* in certain cases, like map/unmap or move, so we don't get spurious events.
*/
void
client_ignore_enterleave_events(void)
{
foreach(c, globalconf.clients)
{
xcb_change_window_attributes(globalconf.connection,
(*c)->window,
XCB_CW_EVENT_MASK,
(const uint32_t []) { CLIENT_SELECT_INPUT_EVENT_MASK & ~(XCB_EVENT_MASK_ENTER_WINDOW | XCB_EVENT_MASK_LEAVE_WINDOW) });
xcb_change_window_attributes(globalconf.connection,
(*c)->frame_window,
XCB_CW_EVENT_MASK,
(const uint32_t []) { FRAME_SELECT_INPUT_EVENT_MASK & ~(XCB_EVENT_MASK_ENTER_WINDOW | XCB_EVENT_MASK_LEAVE_WINDOW) });
}
}
void
client_restore_enterleave_events(void)
{
foreach(c, globalconf.clients)
{
xcb_change_window_attributes(globalconf.connection,
(*c)->window,
XCB_CW_EVENT_MASK,
(const uint32_t []) { CLIENT_SELECT_INPUT_EVENT_MASK });
xcb_change_window_attributes(globalconf.connection,
(*c)->frame_window,
XCB_CW_EVENT_MASK,
(const uint32_t []) { FRAME_SELECT_INPUT_EVENT_MASK });
}
}
/** Record that a client got focus.
* \param c The client.
* \return true if the client focus changed, false otherwise.
*/
bool
client_focus_update(client_t *c)
{
lua_State *L = globalconf_get_lua_State();
if(globalconf.focus.client && globalconf.focus.client != c)
{
/* When we are called due to a FocusIn event (=old focused client
* already unfocused), we don't want to cause a SetInputFocus,
* because the client which has focus now could be using globally
* active input model (or 'no input').
*/
client_unfocus_internal(globalconf.focus.client);
}
bool focused_new = globalconf.focus.client != c;
globalconf.focus.client = c;
/* According to EWMH, we have to remove the urgent state from a client.
* This should be done also for the current/focused client (FS#1310). */
luaA_object_push(L, c);
client_set_urgent(L, -1, false);
if(focused_new)
luaA_object_emit_signal(L, -1, "focus", 0);
lua_pop(L, 1);
return focused_new;
}
/** Give focus to client, or to first client if client is NULL.
* \param c The client.
*/
void
client_focus(client_t *c)
{
/* We have to set focus on first client */
if(!c && globalconf.clients.len && !(c = globalconf.clients.tab[0]))
return;
if(client_focus_update(c))
globalconf.focus.need_update = true;
}
void
client_focus_refresh(void)
{
client_t *c = globalconf.focus.client;
xcb_window_t win = globalconf.focus.window_no_focus;
if(!globalconf.focus.need_update)
return;
globalconf.focus.need_update = false;
if(c && client_on_selected_tags(c))
{
/* Make sure this window is unbanned and e.g. not minimized */
client_unban(c);
/* Sets focus on window - using xcb_set_input_focus or WM_TAKE_FOCUS */
if(!c->nofocus)
win = c->window;
else
/* Move the focus away from whatever has it to make sure the
* previously focused client doesn't get any input in case
* WM_TAKE_FOCUS gets ignored.
*/
win = globalconf.focus.window_no_focus;
if(client_hasproto(c, WM_TAKE_FOCUS))
xwindow_takefocus(c->window);
}
/* If nothing has the focus or the currently focused client does not want
* us to focus it, this sets the focus to the root window. This makes sure
* the previously focused client actually gets unfocused. Alternatively, the
* new client gets the input focus.
*/
xcb_set_input_focus(globalconf.connection, XCB_INPUT_FOCUS_PARENT,
win, globalconf.timestamp);
}
static void
border_width_callback(client_t *c, uint16_t old_width, uint16_t new_width)
{
if(c->size_hints.flags & XCB_ICCCM_SIZE_HINT_P_WIN_GRAVITY)
{
area_t geometry = c->geometry;
int16_t diff = new_width - old_width;
int16_t diff_x = 0, diff_y = 0;
xwindow_translate_for_gravity(c->size_hints.win_gravity,
diff, diff, diff, diff,
&diff_x, &diff_y);
geometry.x += diff_x;
geometry.y += diff_y;
/* force_notice = true -> inform client about changes */
client_resize_do(c, geometry, true);
}
}
static void
client_update_properties(lua_State *L, int cidx, client_t *c)
{
/* get all hints */
xcb_get_property_cookie_t wm_normal_hints = property_get_wm_normal_hints(c);
xcb_get_property_cookie_t wm_hints = property_get_wm_hints(c);
xcb_get_property_cookie_t wm_transient_for = property_get_wm_transient_for(c);
xcb_get_property_cookie_t wm_client_leader = property_get_wm_client_leader(c);
xcb_get_property_cookie_t wm_client_machine = property_get_wm_client_machine(c);
xcb_get_property_cookie_t wm_window_role = property_get_wm_window_role(c);
xcb_get_property_cookie_t net_wm_pid = property_get_net_wm_pid(c);
xcb_get_property_cookie_t net_wm_icon = property_get_net_wm_icon(c);
xcb_get_property_cookie_t wm_name = property_get_wm_name(c);
xcb_get_property_cookie_t net_wm_name = property_get_net_wm_name(c);
xcb_get_property_cookie_t wm_icon_name = property_get_wm_icon_name(c);
xcb_get_property_cookie_t net_wm_icon_name = property_get_net_wm_icon_name(c);
xcb_get_property_cookie_t wm_class = property_get_wm_class(c);
xcb_get_property_cookie_t wm_protocols = property_get_wm_protocols(c);
xcb_get_property_cookie_t opacity = xwindow_get_opacity_unchecked(c->window);
/* update strut */
ewmh_process_client_strut(c);
/* Now process all replies */
property_update_wm_normal_hints(c, wm_normal_hints);
property_update_wm_hints(c, wm_hints);
property_update_wm_transient_for(c, wm_transient_for);
property_update_wm_client_leader(c, wm_client_leader);
property_update_wm_client_machine(c, wm_client_machine);
property_update_wm_window_role(c, wm_window_role);
property_update_net_wm_pid(c, net_wm_pid);
property_update_net_wm_icon(c, net_wm_icon);
property_update_wm_name(c, wm_name);
property_update_net_wm_name(c, net_wm_name);
property_update_wm_icon_name(c, wm_icon_name);
property_update_net_wm_icon_name(c, net_wm_icon_name);
property_update_wm_class(c, wm_class);
property_update_wm_protocols(c, wm_protocols);
window_set_opacity(L, cidx, xwindow_get_opacity_from_cookie(opacity));
}
/** Manage a new client.
* \param w The window.
* \param wgeom Window geometry.
* \param startup True if we are managing at startup time.
*/
void
client_manage(xcb_window_t w, xcb_get_geometry_reply_t *wgeom, xcb_get_window_attributes_reply_t *wattr)
{
lua_State *L = globalconf_get_lua_State();
const uint32_t select_input_val[] = { CLIENT_SELECT_INPUT_EVENT_MASK };
if(systray_iskdedockapp(w))
{
systray_request_handle(w, NULL);
return;
}
/* If this is a new client that just has been launched, then request its
* startup id. */
xcb_get_property_cookie_t startup_id_q = xcb_get_property(globalconf.connection, false,
w, _NET_STARTUP_ID,
XCB_GET_PROPERTY_TYPE_ANY, 0, UINT_MAX);
/* Make sure the window is automatically mapped if awesome exits or dies. */
xcb_change_save_set(globalconf.connection, XCB_SET_MODE_INSERT, w);
if (globalconf.have_shape)
xcb_shape_select_input(globalconf.connection, w, 1);
client_t *c = client_new(L);
xcb_screen_t *s = globalconf.screen;
c->border_width_callback = (void (*) (void *, uint16_t, uint16_t)) border_width_callback;
/* consider the window banned */
c->isbanned = true;
/* Store window and visual */
c->window = w;
c->visualtype = draw_find_visual(globalconf.screen, wattr->visual);
c->frame_window = xcb_generate_id(globalconf.connection);
xcb_create_window(globalconf.connection, globalconf.default_depth, c->frame_window, s->root,
wgeom->x, wgeom->y, wgeom->width, wgeom->height,
wgeom->border_width, XCB_COPY_FROM_PARENT, globalconf.visual->visual_id,
XCB_CW_BORDER_PIXEL | XCB_CW_BIT_GRAVITY | XCB_CW_WIN_GRAVITY
| XCB_CW_OVERRIDE_REDIRECT | XCB_CW_EVENT_MASK | XCB_CW_COLORMAP,
(const uint32_t [])
{
globalconf.screen->black_pixel,
XCB_GRAVITY_NORTH_WEST,
XCB_GRAVITY_NORTH_WEST,
1,
FRAME_SELECT_INPUT_EVENT_MASK,
globalconf.default_cmap
});
/* The client may already be mapped, thus we must be sure that we don't send
* ourselves an UnmapNotify due to the xcb_reparent_window().
*
* Grab the server to make sure we don't lose any events.
*/
uint32_t no_event[] = { 0 };
xcb_grab_server(globalconf.connection);
xcb_change_window_attributes(globalconf.connection,
globalconf.screen->root,
XCB_CW_EVENT_MASK,
no_event);
xcb_reparent_window(globalconf.connection, w, c->frame_window, 0, 0);
xcb_map_window(globalconf.connection, w);
xcb_change_window_attributes(globalconf.connection,
globalconf.screen->root,
XCB_CW_EVENT_MASK,
ROOT_WINDOW_EVENT_MASK);
xcb_ungrab_server(globalconf.connection);
/* Do this now so that we don't get any events for the above
* (Else, reparent could cause an UnmapNotify) */
xcb_change_window_attributes(globalconf.connection, w, XCB_CW_EVENT_MASK, select_input_val);
luaA_object_emit_signal(L, -1, "property::window", 0);
/* The frame window gets the border, not the real client window */
xcb_configure_window(globalconf.connection, w,
XCB_CONFIG_WINDOW_BORDER_WIDTH,
(uint32_t[]) { 0 });
/* Move this window to the bottom of the stack. Without this we would force
* other windows which will be above this one to redraw themselves because
* this window occludes them for a tiny moment. The next stack_refresh()
* will fix this up and move the window to its correct place. */
xcb_configure_window(globalconf.connection, c->frame_window,
XCB_CONFIG_WINDOW_STACK_MODE,
(uint32_t[]) { XCB_STACK_MODE_BELOW});
/* Duplicate client and push it in client list */
lua_pushvalue(L, -1);
client_array_push(&globalconf.clients, luaA_object_ref(L, -1));
/* Set the right screen */
screen_client_moveto(c, screen_getbycoord(wgeom->x, wgeom->y), false);
/* Store initial geometry and emits signals so we inform that geometry have
* been set. */
#define HANDLE_GEOM(attr) \
c->geometry.attr = wgeom->attr; \
luaA_object_emit_signal(L, -1, "property::" #attr, 0);
HANDLE_GEOM(x)
HANDLE_GEOM(y)
HANDLE_GEOM(width)
HANDLE_GEOM(height)
#undef HANDLE_GEOM
luaA_object_emit_signal(L, -1, "property::geometry", 0);
/* Set border width */
window_set_border_width(L, -1, wgeom->border_width);
/* we honor size hints by default */
c->size_hints_honor = true;
luaA_object_emit_signal(L, -1, "property::size_hints_honor", 0);
/* update all properties */
client_update_properties(L, -1, c);
/* Then check clients hints */
ewmh_client_check_hints(c);
/* Push client in stack */
stack_client_push(c);
/* Put the window in normal state. */
xwindow_set_state(c->window, XCB_ICCCM_WM_STATE_NORMAL);
/* Request our response */
xcb_get_property_reply_t *reply =
xcb_get_property_reply(globalconf.connection, startup_id_q, NULL);
/* Say spawn that a client has been started, with startup id as argument */
char *startup_id = xutil_get_text_property_from_reply(reply);
c->startup_id = startup_id;
p_delete(&reply);
spawn_start_notify(c, startup_id);
luaA_class_emit_signal(L, &client_class, "list", 0);
/* client is still on top of the stack; emit signal */
luaA_object_emit_signal(L, -1, "manage", 0);
/* pop client */
lua_pop(L, 1);
}
static void
client_remove_titlebar_geometry(client_t *c, area_t *geometry)
{
geometry->x += c->titlebar[CLIENT_TITLEBAR_LEFT].size;
geometry->y += c->titlebar[CLIENT_TITLEBAR_TOP].size;
geometry->width -= c->titlebar[CLIENT_TITLEBAR_LEFT].size;
geometry->width -= c->titlebar[CLIENT_TITLEBAR_RIGHT].size;
geometry->height -= c->titlebar[CLIENT_TITLEBAR_TOP].size;
geometry->height -= c->titlebar[CLIENT_TITLEBAR_BOTTOM].size;
}
static void
client_add_titlebar_geometry(client_t *c, area_t *geometry)
{
geometry->x -= c->titlebar[CLIENT_TITLEBAR_LEFT].size;
geometry->y -= c->titlebar[CLIENT_TITLEBAR_TOP].size;
geometry->width += c->titlebar[CLIENT_TITLEBAR_LEFT].size;
geometry->width += c->titlebar[CLIENT_TITLEBAR_RIGHT].size;
geometry->height += c->titlebar[CLIENT_TITLEBAR_TOP].size;
geometry->height += c->titlebar[CLIENT_TITLEBAR_BOTTOM].size;
}
/** Send a synthetic configure event to a window.
*/
void
client_send_configure(client_t *c)
{
area_t geometry = c->geometry;
if (!c->fullscreen)
client_remove_titlebar_geometry(c, &geometry);
xwindow_configure(c->window, geometry, c->border_width);
}
/** Apply size hints to the client's new geometry.
*/
static area_t
client_apply_size_hints(client_t *c, area_t geometry)
{
int32_t minw = 0, minh = 0;
int32_t basew = 0, baseh = 0, real_basew = 0, real_baseh = 0;
if (c->fullscreen)
return geometry;
/* Size hints are applied to the window without any decoration */
client_remove_titlebar_geometry(c, &geometry);
if(c->size_hints.flags & XCB_ICCCM_SIZE_HINT_BASE_SIZE)
{
basew = c->size_hints.base_width;
baseh = c->size_hints.base_height;
real_basew = basew;
real_baseh = baseh;
}
else if(c->size_hints.flags & XCB_ICCCM_SIZE_HINT_P_MIN_SIZE)
{
/* base size is substituted with min size if not specified */
basew = c->size_hints.min_width;
baseh = c->size_hints.min_height;
}
if(c->size_hints.flags & XCB_ICCCM_SIZE_HINT_P_MIN_SIZE)
{
minw = c->size_hints.min_width;
minh = c->size_hints.min_height;
}
else if(c->size_hints.flags & XCB_ICCCM_SIZE_HINT_BASE_SIZE)
{
/* min size is substituted with base size if not specified */
minw = c->size_hints.base_width;
minh = c->size_hints.base_height;
}
/* Handle the size aspect ratio */
if(c->size_hints.flags & XCB_ICCCM_SIZE_HINT_P_ASPECT
&& c->size_hints.min_aspect_den > 0
&& c->size_hints.max_aspect_den > 0
&& geometry.height > real_baseh
&& geometry.width > real_basew)
{
/* ICCCM mandates:
* If a base size is provided along with the aspect ratio fields, the base size should be subtracted from the
* window size prior to checking that the aspect ratio falls in range. If a base size is not provided, nothing
* should be subtracted from the window size. (The minimum size is not to be used in place of the base size for
* this purpose.)
*/
double dx = geometry.width - real_basew;
double dy = geometry.height - real_baseh;
double ratio = dx / dy;
double min = c->size_hints.min_aspect_num / (double) c->size_hints.min_aspect_den;
double max = c->size_hints.max_aspect_num / (double) c->size_hints.max_aspect_den;
if(max > 0 && min > 0 && ratio > 0)
{
if(ratio < min)
{
/* dx is lower than allowed, make dy lower to compensate this (+ 0.5 to force proper rounding). */
dy = dx / min + 0.5;
geometry.width = dx + real_basew;
geometry.height = dy + real_baseh;
} else if(ratio > max)
{
/* dx is too high, lower it (+0.5 for proper rounding) */
dx = dy * max + 0.5;
geometry.width = dx + real_basew;
geometry.height = dy + real_baseh;
}
}
}
/* Handle the minimum size */
geometry.width = MAX(geometry.width, minw);
geometry.height = MAX(geometry.height, minh);
/* Handle the maximum size */
if(c->size_hints.flags & XCB_ICCCM_SIZE_HINT_P_MAX_SIZE)
{
if(c->size_hints.max_width)
geometry.width = MIN(geometry.width, c->size_hints.max_width);
if(c->size_hints.max_height)
geometry.height = MIN(geometry.height, c->size_hints.max_height);
}
/* Handle the size increment */
if(c->size_hints.flags & (XCB_ICCCM_SIZE_HINT_P_RESIZE_INC | XCB_ICCCM_SIZE_HINT_BASE_SIZE)
&& c->size_hints.width_inc && c->size_hints.height_inc)
{
uint16_t t1 = geometry.width, t2 = geometry.height;
unsigned_subtract(t1, basew);
unsigned_subtract(t2, baseh);
geometry.width -= t1 % c->size_hints.width_inc;
geometry.height -= t2 % c->size_hints.height_inc;
}
client_add_titlebar_geometry(c, &geometry);
return geometry;
}
static void
client_resize_do(client_t *c, area_t geometry, bool force_notice)
{
lua_State *L = globalconf_get_lua_State();
bool send_notice = force_notice;
bool hide_titlebars = c->fullscreen;
screen_t *new_screen = c->screen;
if(!screen_coord_in_screen(new_screen, geometry.x, geometry.y))
new_screen = screen_getbycoord(geometry.x, geometry.y);
if(c->geometry.width == geometry.width
&& c->geometry.height == geometry.height)
send_notice = true;
/* Also store geometry including border */
area_t old_geometry = c->geometry;
c->geometry = geometry;
/* Ignore all spurious enter/leave notify events */
client_ignore_enterleave_events();
/* Configure the client for its new size */
area_t real_geometry = geometry;
if (!hide_titlebars)
{
real_geometry.x = c->titlebar[CLIENT_TITLEBAR_LEFT].size;
real_geometry.y = c->titlebar[CLIENT_TITLEBAR_TOP].size;
real_geometry.width -= c->titlebar[CLIENT_TITLEBAR_LEFT].size;
real_geometry.width -= c->titlebar[CLIENT_TITLEBAR_RIGHT].size;
real_geometry.height -= c->titlebar[CLIENT_TITLEBAR_TOP].size;
real_geometry.height -= c->titlebar[CLIENT_TITLEBAR_BOTTOM].size;
} else {
real_geometry.x = 0;
real_geometry.y = 0;
}
xcb_configure_window(globalconf.connection, c->frame_window,
XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y | XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT,
(uint32_t[]) { geometry.x, geometry.y, geometry.width, geometry.height });
xcb_configure_window(globalconf.connection, c->window,
XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y | XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT,
(uint32_t[]) { real_geometry.x, real_geometry.y, real_geometry.width, real_geometry.height });
if(send_notice)
/* We are moving without changing the size, see ICCCM 4.2.3 */
client_send_configure(c);
client_restore_enterleave_events();
luaA_object_push(L, c);
if (!AREA_EQUAL(old_geometry, geometry))
luaA_object_emit_signal(L, -1, "property::geometry", 0);
if (old_geometry.x != geometry.x)
luaA_object_emit_signal(L, -1, "property::x", 0);
if (old_geometry.y != geometry.y)
luaA_object_emit_signal(L, -1, "property::y", 0);
if (old_geometry.width != geometry.width)
luaA_object_emit_signal(L, -1, "property::width", 0);
if (old_geometry.height != geometry.height)
luaA_object_emit_signal(L, -1, "property::height", 0);
lua_pop(L, 1);
screen_client_moveto(c, new_screen, false);
/* Update all titlebars */
for (client_titlebar_t bar = CLIENT_TITLEBAR_TOP; bar < CLIENT_TITLEBAR_COUNT; bar++) {
if (c->titlebar[bar].drawable == NULL && c->titlebar[bar].size == 0)
continue;
luaA_object_push(L, c);
drawable_t *drawable = titlebar_get_drawable(L, c, -1, bar);
luaA_object_push_item(L, -1, drawable);
area_t area = titlebar_get_area(c, bar);
/* Convert to global coordinates */
area.x += geometry.x;
area.y += geometry.y;
if (hide_titlebars)
area.width = area.height = 0;
drawable_set_geometry(L, -1, area);
/* Pop the client and the drawable */
lua_pop(L, 2);
}
}
/** Resize client window.
* The sizes given as parameters are with borders!
* \param c Client to resize.
* \param geometry New window geometry.
* \param honor_hints Use size hints.
* \return true if an actual resize occurred.
*/
bool
client_resize(client_t *c, area_t geometry, bool honor_hints)
{
area_t area;
/* offscreen appearance fixes */
area = display_area_get();
if(geometry.x > area.width)
geometry.x = area.width - geometry.width;
if(geometry.y > area.height)
geometry.y = area.height - geometry.height;
if(geometry.x + geometry.width < 0)
geometry.x = 0;
if(geometry.y + geometry.height < 0)
geometry.y = 0;
if(geometry.width < c->titlebar[CLIENT_TITLEBAR_LEFT].size + c->titlebar[CLIENT_TITLEBAR_RIGHT].size)
return false;
if(geometry.height < c->titlebar[CLIENT_TITLEBAR_TOP].size + c->titlebar[CLIENT_TITLEBAR_BOTTOM].size)
return false;
if(geometry.width == 0 || geometry.height == 0)
return false;
if (honor_hints)
geometry = client_apply_size_hints(c, geometry);
if(c->geometry.x != geometry.x
|| c->geometry.y != geometry.y
|| c->geometry.width != geometry.width
|| c->geometry.height != geometry.height)
{
client_resize_do(c, geometry, false);
return true;
}
return false;
}
static void
client_emit_property_workarea_on_screen(lua_State *L, client_t *c)
{
luaA_object_push(L, c->screen);
luaA_object_emit_signal(L, -1, "property::workarea", 0);
lua_pop(L, 1);
}
/** Set a client minimized, or not.
* \param L The Lua VM state.
* \param cidx The client index.
* \param s Set or not the client minimized.
*/
void
client_set_minimized(lua_State *L, int cidx, bool s)
{
client_t *c = luaA_checkudata(L, cidx, &client_class);
if(c->minimized != s)
{
c->minimized = s;
banning_need_update();
if(s)
{
/* ICCCM: To transition from ICONIC to NORMAL state, the client
* should just map the window. Thus, iconic clients need to be
* unmapped, else the MapWindow request doesn't have any effect.
*/
xwindow_set_state(c->window, XCB_ICCCM_WM_STATE_ICONIC);
uint32_t no_event[] = { 0 };
const uint32_t client_select_input_val[] = { CLIENT_SELECT_INPUT_EVENT_MASK };
const uint32_t frame_select_input_val[] = { FRAME_SELECT_INPUT_EVENT_MASK };
xcb_grab_server(globalconf.connection);
xcb_change_window_attributes(globalconf.connection,
globalconf.screen->root,
XCB_CW_EVENT_MASK,
no_event);
xcb_change_window_attributes(globalconf.connection,
c->frame_window,
XCB_CW_EVENT_MASK,
no_event);
xcb_change_window_attributes(globalconf.connection,
c->window,
XCB_CW_EVENT_MASK,
no_event);
xcb_unmap_window(globalconf.connection, c->window);
xcb_change_window_attributes(globalconf.connection,
globalconf.screen->root,