/*
* vim:ts=4:sw=4:expandtab
*
* i3 - an improved dynamic tiling window manager
* © 2009 Michael Stapelberg and contributors (see also: LICENSE)
*
* x.c: Interface to X11, transfers our in-memory state to X11 (see also
* render.c). Basically a big state machine.
*
*/
#include "all.h"
#include <unistd.h>
#ifndef MAX
#define MAX(x, y) ((x) > (y) ? (x) : (y))
#endif
/* Stores the X11 window ID of the currently focused window */
xcb_window_t focused_id = XCB_NONE;
/* Because 'focused_id' might be reset to force input focus, we separately keep
* track of the X11 window ID to be able to always tell whether the focused
* window actually changed. */
static xcb_window_t last_focused = XCB_NONE;
/* Stores coordinates to warp mouse pointer to if set */
static Rect *warp_to;
/*
* Describes the X11 state we may modify (map state, position, window stack).
* There is one entry per container. The state represents the current situation
* as X11 sees it (with the exception of the order in the state_head CIRCLEQ,
* which represents the order that will be pushed to X11, while old_state_head
* represents the current order). It will be updated in x_push_changes().
*
*/
typedef struct con_state {
xcb_window_t id;
bool mapped;
bool unmap_now;
bool child_mapped;
bool is_hidden;
/* The con for which this state is. */
Con *con;
/* For reparenting, we have a flag (need_reparent) and the X ID of the old
* frame this window was in. The latter is necessary because we need to
* ignore UnmapNotify events (by changing the window event mask). */
bool need_reparent;
xcb_window_t old_frame;
/* The container was child of floating container during the previous call of
* x_push_node(). This is used to remove the shape when the container is no
* longer floating. */
bool was_floating;
Rect rect;
Rect window_rect;
bool initial;
char *name;
CIRCLEQ_ENTRY(con_state) state;
CIRCLEQ_ENTRY(con_state) old_state;
TAILQ_ENTRY(con_state) initial_mapping_order;
} con_state;
CIRCLEQ_HEAD(state_head, con_state) state_head =
CIRCLEQ_HEAD_INITIALIZER(state_head);
CIRCLEQ_HEAD(old_state_head, con_state) old_state_head =
CIRCLEQ_HEAD_INITIALIZER(old_state_head);
TAILQ_HEAD(initial_mapping_head, con_state) initial_mapping_head =
TAILQ_HEAD_INITIALIZER(initial_mapping_head);
/*
* Returns the container state for the given frame. This function always
* returns a container state (otherwise, there is a bug in the code and the
* container state of a container for which x_con_init() was not called was
* requested).
*
*/
static con_state *state_for_frame(xcb_window_t window) {
con_state *state;
CIRCLEQ_FOREACH (state, &state_head, state) {
if (state->id == window) {
return state;
}
}
/* TODO: better error handling? */
ELOG("No state found for window 0x%08x\n", window);
assert(false);
return NULL;
}
/*
* Changes the atoms on the root window and the windows themselves to properly
* reflect the current focus for ewmh compliance.
*
*/
static void change_ewmh_focus(xcb_window_t new_focus, xcb_window_t old_focus) {
if (new_focus == old_focus) {
return;
}
ewmh_update_active_window(new_focus);
if (new_focus != XCB_WINDOW_NONE) {
ewmh_update_focused(new_focus, true);
}
if (old_focus != XCB_WINDOW_NONE) {
ewmh_update_focused(old_focus, false);
}
}
/*
* Initializes the X11 part for the given container. Called exactly once for
* every container from con_new().
*
*/
void x_con_init(Con *con) {
/* TODO: maybe create the window when rendering first? we could then even
* get the initial geometry right */
uint32_t mask = 0;
uint32_t values[5];
xcb_visualid_t visual = get_visualid_by_depth(con->depth);
xcb_colormap_t win_colormap;
if (con->depth != root_depth) {
/* We need to create a custom colormap. */
win_colormap = xcb_generate_id(conn);
xcb_create_colormap(conn, XCB_COLORMAP_ALLOC_NONE, win_colormap, root, visual);
con->colormap = win_colormap;
} else {
/* Use the default colormap. */
win_colormap = colormap;
con->colormap = XCB_NONE;
}
/* We explicitly set a background color and border color (even though we
* don’t even have a border) because the X11 server requires us to when
* using 32 bit color depths, see
* https://stackoverflow.com/questions/3645632 */
mask |= XCB_CW_BACK_PIXEL;
values[0] = root_screen->black_pixel;
mask |= XCB_CW_BORDER_PIXEL;
values[1] = root_screen->black_pixel;
/* our own frames should not be managed */
mask |= XCB_CW_OVERRIDE_REDIRECT;
values[2] = 1;
/* see include/xcb.h for the FRAME_EVENT_MASK */
mask |= XCB_CW_EVENT_MASK;
values[3] = FRAME_EVENT_MASK & ~XCB_EVENT_MASK_ENTER_WINDOW;
mask |= XCB_CW_COLORMAP;
values[4] = win_colormap;
Rect dims = {-15, -15, 10, 10};
xcb_window_t frame_id = create_window(conn, dims, con->depth, visual, XCB_WINDOW_CLASS_INPUT_OUTPUT, XCURSOR_CURSOR_POINTER, false, mask, values);
draw_util_surface_init(conn, &(con->frame), frame_id, get_visualtype_by_id(visual), dims.width, dims.height);
xcb_change_property(conn,
XCB_PROP_MODE_REPLACE,
con->frame.id,
XCB_ATOM_WM_CLASS,
XCB_ATOM_STRING,
8,
(strlen("i3-frame") + 1) * 2,
"i3-frame\0i3-frame\0");
struct con_state *state = scalloc(1, sizeof(struct con_state));
state->id = con->frame.id;
state->mapped = false;
state->initial = true;
DLOG("Adding window 0x%08x to lists\n", state->id);
CIRCLEQ_INSERT_HEAD(&state_head, state, state);
CIRCLEQ_INSERT_HEAD(&old_state_head, state, old_state);
TAILQ_INSERT_TAIL(&initial_mapping_head, state, initial_mapping_order);
DLOG("adding new state for window id 0x%08x\n", state->id);
}
/*
* Re-initializes the associated X window state for this container. You have
* to call this when you assign a client to an empty container to ensure that
* its state gets updated correctly.
*
*/
void x_reinit(Con *con) {
struct con_state *state;
if ((state = state_for_frame(con->frame.id)) == NULL) {
ELOG("window state not found\n");
return;
}
DLOG("resetting state %p to initial\n", state);
state->initial = true;
state->child_mapped = false;
state->con = con;
memset(&(state->window_rect), 0, sizeof(Rect));
}
/*
* Reparents the child window of the given container (necessary for sticky
* containers). The reparenting happens in the next call of x_push_changes().
*
*/
void x_reparent_child(Con *con, Con *old) {
struct con_state *state;
if ((state = state_for_frame(con->frame.id)) == NULL) {
ELOG("window state for con not found\n");
return;
}
state->need_reparent = true;
state->old_frame = old->frame.id;
}
/*
* Moves a child window from Container src to Container dest.
*
*/
void x_move_win(Con *src, Con *dest) {
struct con_state *state_src, *state_dest;
if ((state_src = state_for_frame(src->frame.id)) == NULL) {
ELOG("window state for src not found\n");
return;
}
if ((state_dest = state_for_frame(dest->frame.id)) == NULL) {
ELOG("window state for dest not found\n");
return;
}
state_dest->con = state_src->con;
state_src->con = NULL;
if (rect_equals(state_dest->window_rect, (Rect){0, 0, 0, 0})) {
memcpy(&(state_dest->window_rect), &(state_src->window_rect), sizeof(Rect));
DLOG("COPYING RECT\n");
}
}
static void _x_con_kill(Con *con) {
con_state *state;
if (con->colormap != XCB_NONE) {
xcb_free_colormap(conn, con->colormap);
}
draw_util_surface_free(conn, &(con->frame));
draw_util_surface_free(conn, &(con->frame_buffer));
xcb_free_pixmap(conn, con->frame_buffer.id);
con->frame_buffer.id = XCB_NONE;
state = state_for_frame(con->frame.id);
CIRCLEQ_REMOVE(&state_head, state, state);
CIRCLEQ_REMOVE(&old_state_head, state, old_state);
TAILQ_REMOVE(&initial_mapping_head, state, initial_mapping_order);
FREE(state->name);
free(state);
/* Invalidate focused_id to correctly focus new windows with the same ID */
if (con->frame.id == focused_id) {
focused_id = XCB_NONE;
}
if (con->frame.id == last_focused) {
last_focused = XCB_NONE;
}
}
/*
* Kills the window decoration associated with the given container.
*
*/
void x_con_kill(Con *con) {
_x_con_kill(con);
xcb_destroy_window(conn, con->frame.id);
}
/*
* Completely reinitializes the container's frame, without destroying the old window.
*
*/
void x_con_reframe(Con *con) {
_x_con_kill(con);
x_con_init(con);
}
/*
* Returns true if the client supports the given protocol atom (like WM_DELETE_WINDOW)
*
*/
bool window_supports_protocol(xcb_window_t window, xcb_atom_t atom) {
xcb_get_property_cookie_t cookie;
xcb_icccm_get_wm_protocols_reply_t protocols;
bool result = false;
cookie = xcb_icccm_get_wm_protocols(conn, window, A_WM_PROTOCOLS);
if (xcb_icccm_get_wm_protocols_reply(conn, cookie, &protocols, NULL) != 1)
return false;
/* Check if the client’s protocols have the requested atom set */
for (uint32_t i = 0; i < protocols.atoms_len; i++)
if (protocols.atoms[i] == atom)
result = true;
xcb_icccm_get_wm_protocols_reply_wipe(&protocols);
return result;
}
/*
* Kills the given X11 window using WM_DELETE_WINDOW (if supported).
*
*/
void x_window_kill(xcb_window_t window, kill_window_t kill_window) {
/* if this window does not support WM_DELETE_WINDOW, we kill it the hard way */
if (!window_supports_protocol(window, A_WM_DELETE_WINDOW)) {
if (kill_window == KILL_WINDOW) {
LOG("Killing specific window 0x%08x\n", window);
xcb_destroy_window(conn, window);
} else {
LOG("Killing the X11 client which owns window 0x%08x\n", window);
xcb_kill_client(conn, window);
}
return;
}
/* Every X11 event is 32 bytes long. Therefore, XCB will copy 32 bytes.
* In order to properly initialize these bytes, we allocate 32 bytes even
* though we only need less for an xcb_configure_notify_event_t */
void *event = scalloc(32, 1);
xcb_client_message_event_t *ev = event;
ev->response_type = XCB_CLIENT_MESSAGE;
ev->window = window;
ev->type = A_WM_PROTOCOLS;
ev->format = 32;
ev->data.data32[0] = A_WM_DELETE_WINDOW;
ev->data.data32[1] = XCB_CURRENT_TIME;
LOG("Sending WM_DELETE to the client\n");
xcb_send_event(conn, false, window, XCB_EVENT_MASK_NO_EVENT, (char *)ev);
xcb_flush(conn);
free(event);
}
static void x_draw_title_border(Con *con, struct deco_render_params *p) {
assert(con->parent != NULL);
Rect *dr = &(con->deco_rect);
/* Left */
draw_util_rectangle(&(con->parent->frame_buffer), p->color->border,
dr->x, dr->y, 1, dr->height);
/* Right */
draw_util_rectangle(&(con->parent->frame_buffer), p->color->border,
dr->x + dr->width - 1, dr->y, 1, dr->height);
/* Top */
draw_util_rectangle(&(con->parent->frame_buffer), p->color->border,
dr->x, dr->y, dr->width, 1);
/* Bottom */
draw_util_rectangle(&(con->parent->frame_buffer), p->color->border,
dr->x, dr->y + dr->height - 1, dr->width, 1);
}
static void x_draw_decoration_after_title(Con *con, struct deco_render_params *p) {
assert(con->parent != NULL);
Rect *dr = &(con->deco_rect);
/* Redraw the right border to cut off any text that went past it.
* This is necessary when the text was drawn using XCB since cutting text off
* automatically does not work there. For pango rendering, this isn't necessary. */
if (!font_is_pango()) {
/* We actually only redraw the far right two pixels as that is the
* distance we keep from the edge (not the entire border width).
* Redrawing the entire border would cause text to be cut off. */
draw_util_rectangle(&(con->parent->frame_buffer), p->color->background,
dr->x + dr->width - 2 * logical_px(1),
dr->y,
2 * logical_px(1),
dr->height);
}
/* Redraw the border. */
x_draw_title_border(con, p);
}
/*
* Get rectangles representing the border around the child window. Some borders
* are adjacent to the screen-edge and thus not returned. Return value is the
* number of rectangles.
*
*/
static size_t x_get_border_rectangles(Con *con, xcb_rectangle_t rectangles[4]) {
size_t count = 0;
int border_style = con_border_style(con);
if (border_style != BS_NONE && con_is_leaf(con)) {
adjacent_t borders_to_hide = con_adjacent_borders(con) & config.hide_edge_borders;
Rect br = con_border_style_rect(con);
if (!(borders_to_hide & ADJ_LEFT_SCREEN_EDGE)) {
rectangles[count++] = (xcb_rectangle_t){
.x = 0,
.y = 0,
.width = br.x,
.height = con->rect.height,
};
}
if (!(borders_to_hide & ADJ_RIGHT_SCREEN_EDGE)) {
rectangles[count++] = (xcb_rectangle_t){
.x = con->rect.width + (br.width + br.x),
.y = 0,
.width = -(br.width + br.x),
.height = con->rect.height,
};
}
if (!(borders_to_hide & ADJ_LOWER_SCREEN_EDGE)) {
rectangles[count++] = (xcb_rectangle_t){
.x = br.x,
.y = con->rect.height + (br.height + br.y),
.width = con->rect.width + br.width,
.height = -(br.height + br.y),
};
}
/* pixel border have an additional line at the top */
if (border_style == BS_PIXEL && !(borders_to_hide & ADJ_UPPER_SCREEN_EDGE)) {
rectangles[count++] = (xcb_rectangle_t){
.x = br.x,
.y = 0,
.width = con->rect.width + br.width,
.height = br.y,
};
}
}
return count;
}
/*
* Draws the decoration of the given container onto its parent.
*
*/
void x_draw_decoration(Con *con) {
Con *parent = con->parent;
bool leaf = con_is_leaf(con);
/* This code needs to run for:
* • leaf containers
* • non-leaf containers which are in a stacked/tabbed container
*
* It does not need to run for:
* • direct children of outputs or dockareas
* • floating containers (they don’t have a decoration)
*/
if ((!leaf &&
parent->layout != L_STACKED &&
parent->layout != L_TABBED) ||
parent->type == CT_OUTPUT ||
parent->type == CT_DOCKAREA ||
con->type == CT_FLOATING_CON)
return;
/* Skip containers whose height is 0 (for example empty dockareas) */
if (con->rect.height == 0)
return;
/* Skip containers whose pixmap has not yet been created (can happen when
* decoration rendering happens recursively for a window for which
* x_push_node() was not yet called) */
if (leaf && con->frame_buffer.id == XCB_NONE)
return;
/* 1: build deco_params and compare with cache */
struct deco_render_params *p = scalloc(1, sizeof(struct deco_render_params));
/* find out which colors to use */
if (con->urgent) {
p->color = &config.client.urgent;
} else if (con == focused || con_inside_focused(con)) {
p->color = &config.client.focused;
} else if (con == TAILQ_FIRST(&(parent->focus_head))) {
if (config.client.got_focused_tab_title && !leaf && con_descend_focused(con) == focused) {
/* Stacked/tabbed parent of focused container */
p->color = &config.client.focused_tab_title;
} else {
p->color = &config.client.focused_inactive;
}
} else {
p->color = &config.client.unfocused;
}
p->border_style = con_border_style(con);
Rect *r = &(con->rect);
Rect *w = &(con->window_rect);
p->con_rect = (struct width_height){r->width, r->height};
p->con_window_rect = (struct width_height){w->width, w->height};
p->con_deco_rect = con->deco_rect;
p->background = config.client.background;
p->con_is_leaf = con_is_leaf(con);
p->parent_layout = con->parent->layout;
if (con->deco_render_params != NULL &&
(con->window == NULL || !con->window->name_x_changed) &&
!parent->pixmap_recreated &&
!con->pixmap_recreated &&
!con->mark_changed &&
memcmp(p, con->deco_render_params, sizeof(struct deco_render_params)) == 0) {
free(p);
goto copy_pixmaps;
}
Con *next = con;
while ((next = TAILQ_NEXT(next, nodes))) {
FREE(next->deco_render_params);
}
FREE(con->deco_render_params);
con->deco_render_params = p;
if (con->window != NULL && con->window->name_x_changed)
con->window->name_x_changed = false;
parent->pixmap_recreated = false;
con->pixmap_recreated = false;
con->mark_changed = false;
/* 2: draw the client.background, but only for the parts around the window_rect */
if (con->window != NULL) {
/* Clear visible windows before beginning to draw */
draw_util_clear_surface(&(con->frame_buffer), (color_t){.red = 0.0, .green = 0.0, .blue = 0.0});
/* top area */
draw_util_rectangle(&(con->frame_buffer), config.client.background,
0, 0, r->width, w->y);
/* bottom area */
draw_util_rectangle(&(con->frame_buffer), config.client.background,
0, w->y + w->height, r->width, r->height - (w->y + w->height));
/* left area */
draw_util_rectangle(&(con->frame_buffer), config.client.background,
0, 0, w->x, r->height);
/* right area */
draw_util_rectangle(&(con->frame_buffer), config.client.background,
w->x + w->width, 0, r->width - (w->x + w->width), r->height);
}
/* 3: draw a rectangle in border color around the client */
if (p->border_style != BS_NONE && p->con_is_leaf) {
/* Fill the border. We don’t just fill the whole rectangle because some
* children are not freely resizable and we want their background color
* to "shine through". */
xcb_rectangle_t rectangles[4];
size_t rectangles_count = x_get_border_rectangles(con, rectangles);
for (size_t i = 0; i < rectangles_count; i++) {
draw_util_rectangle(&(con->frame_buffer), p->color->child_border,
rectangles[i].x,
rectangles[i].y,
rectangles[i].width,
rectangles[i].height);
}
/* Highlight the side of the border at which the next window will be
* opened if we are rendering a single window within a split container
* (which is undistinguishable from a single window outside a split
* container otherwise. */
Rect br = con_border_style_rect(con);
if (TAILQ_NEXT(con, nodes) == NULL &&
TAILQ_PREV(con, nodes_head, nodes) == NULL &&
con->parent->type != CT_FLOATING_CON) {
if (p->parent_layout == L_SPLITH) {
draw_util_rectangle(&(con->frame_buffer), p->color->indicator,
r->width + (br.width + br.x), br.y, -(br.width + br.x), r->height + br.height);
} else if (p->parent_layout == L_SPLITV) {
draw_util_rectangle(&(con->frame_buffer), p->color->indicator,
br.x, r->height + (br.height + br.y), r->width + br.width, -(br.height + br.y));
}
}
}
/* If the parent hasn't been set up yet, skip the decoration rendering
* for now. */
if (parent->frame_buffer.id == XCB_NONE)
goto copy_pixmaps;
/* For the first child, we clear the parent pixmap to ensure there's no
* garbage left on there. This is important to avoid tearing when using
* transparency. */
if (con == TAILQ_FIRST(&(con->parent->nodes_head))) {
draw_util_clear_surface(&(con->parent->frame_buffer), COLOR_TRANSPARENT);
FREE(con->parent->deco_render_params);
}
/* if this is a borderless/1pixel window, we don’t need to render the
* decoration. */
if (p->border_style != BS_NORMAL)
goto copy_pixmaps;
/* 4: paint the bar */
draw_util_rectangle(&(parent->frame_buffer), p->color->background,
con->deco_rect.x, con->deco_rect.y, con->deco_rect.width, con->deco_rect.height);
/* 5: draw title border */
x_draw_title_border(con, p);
/* 6: draw the icon and title */
int text_offset_y = (con->deco_rect.height - config.font.height) / 2;
struct Window *win = con->window;
const int deco_width = (int)con->deco_rect.width;
const int title_padding = logical_px(2);
int mark_width = 0;
if (config.show_marks && !TAILQ_EMPTY(&(con->marks_head))) {
char *formatted_mark = sstrdup("");
bool had_visible_mark = false;
mark_t *mark;
TAILQ_FOREACH (mark, &(con->marks_head), marks) {
if (mark->name[0] == '_')
continue;
had_visible_mark = true;
char *buf;
sasprintf(&buf, "%s[%s]", formatted_mark, mark->name);
free(formatted_mark);
formatted_mark = buf;
}
if (had_visible_mark) {
i3String *mark = i3string_from_utf8(formatted_mark);
mark_width = predict_text_width(mark);
int mark_offset_x = (config.title_align == ALIGN_RIGHT)
? title_padding
: deco_width - mark_width - title_padding;
draw_util_text(mark, &(parent->frame_buffer),
p->color->text, p->color->background,
con->deco_rect.x + mark_offset_x,
con->deco_rect.y + text_offset_y, mark_width);
I3STRING_FREE(mark);
mark_width += title_padding;
}
FREE(formatted_mark);
}
i3String *title = NULL;
if (win == NULL) {
if (con->title_format == NULL) {
char *_title;
char *tree = con_get_tree_representation(con);
sasprintf(&_title, "i3: %s", tree);
free(tree);
title = i3string_from_utf8(_title);
FREE(_title);
} else {
title = con_parse_title_format(con);
}
} else {
title = con->title_format == NULL ? win->name : con_parse_title_format(con);
}
if (title == NULL) {
goto copy_pixmaps;
}
/* icon_padding is applied horizontally only, the icon will always use all
* available vertical space. */
int icon_size = max(0, con->deco_rect.height - logical_px(2));
int icon_padding = logical_px(max(1, con->window_icon_padding));
int total_icon_space = icon_size + 2 * icon_padding;
const bool has_icon = (con->window_icon_padding > -1) && win && win->icon && (total_icon_space < deco_width);
if (!has_icon) {
icon_size = icon_padding = total_icon_space = 0;
}
/* Determine x offsets according to title alignment */
int icon_offset_x;
int title_offset_x;
switch (config.title_align) {
case ALIGN_LEFT:
/* (pad)[(pad)(icon)(pad)][text ](pad)[mark + its pad)
* ^ ^--- title_offset_x
* ^--- icon_offset_x */
icon_offset_x = icon_padding;
title_offset_x = title_padding + total_icon_space;
break;
case ALIGN_CENTER:
/* (pad)[ ][(pad)(icon)(pad)][text ](pad)[mark + its pad)
* ^ ^--- title_offset_x
* ^--- icon_offset_x
* Text should come right after the icon (+padding). We calculate
* the offset for the icon (white space in the title) by dividing
* by two the total available area. That's the decoration width
* minus the elements that come after icon_offset_x (icon, its
* padding, text, marks). */
icon_offset_x = max(icon_padding, (deco_width - icon_padding - icon_size - predict_text_width(title) - title_padding - mark_width) / 2);
title_offset_x = max(title_padding, icon_offset_x + icon_padding + icon_size);
break;
case ALIGN_RIGHT:
/* [mark + its pad](pad)[ text][(pad)(icon)(pad)](pad)
* ^ ^--- icon_offset_x
* ^--- title_offset_x */
title_offset_x = max(title_padding + mark_width, deco_width - title_padding - predict_text_width(title) - total_icon_space);
/* Make sure the icon does not escape title boundaries */
icon_offset_x = min(deco_width - icon_size - icon_padding - title_padding, title_offset_x + predict_text_width(title) + icon_padding);
break;
}
draw_util_text(title, &(parent->frame_buffer),
p->color->text, p->color->background,
con->deco_rect.x + title_offset_x,
con->deco_rect.y + text_offset_y,
deco_width - mark_width - 2 * title_padding - total_icon_space);
if (has_icon) {
draw_util_image(
win->icon,
&(parent->frame_buffer),
con->deco_rect.x + icon_offset_x,
con->deco_rect.y + logical_px(1),
icon_size,
icon_size);
}
if (win == NULL || con->title_format != NULL) {
I3STRING_FREE(title);
}
x_draw_decoration_after_title(con, p);
copy_pixmaps:
draw_util_copy_surface(&(con->frame_buffer), &(con->frame), 0, 0, 0, 0, con->rect.width, con->rect.height);
}
/*
* Recursively calls x_draw_decoration. This cannot be done in x_push_node
* because x_push_node uses focus order to recurse (see the comment above)
* while drawing the decoration needs to happen in the actual order.
*
*/
void x_deco_recurse(Con *con) {
Con *current;
bool leaf = TAILQ_EMPTY(&(con->nodes_head)) &&
TAILQ_EMPTY(&(con->floating_head));
con_state *state = state_for_frame(con->frame.id);
if (!leaf) {
TAILQ_FOREACH (current, &(con->nodes_head), nodes) {
x_deco_recurse(current);
}
TAILQ_FOREACH (current, &(con->floating_head), floating_windows) {
x_deco_recurse(current);
}
if (state->mapped) {
draw_util_copy_surface(&(con->frame_buffer), &(con->frame), 0, 0, 0, 0, con->rect.width, con->rect.height);
}
}
if ((con->type != CT_ROOT && con->type != CT_OUTPUT) &&
(!leaf || con->mapped))
x_draw_decoration(con);
}
/*
* Sets or removes the _NET_WM_STATE_HIDDEN property on con if necessary.
*
*/
static void set_hidden_state(Con *con) {
if (con->window == NULL) {
return;
}
con_state *state = state_for_frame(con->frame.id);
bool should_be_hidden = con_is_hidden(con);
if (should_be_hidden == state->is_hidden)
return;
if (should_be_hidden) {
DLOG("setting _NET_WM_STATE_HIDDEN for con = %p\n", con);
xcb_add_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_HIDDEN);
} else {
DLOG("removing _NET_WM_STATE_HIDDEN for con = %p\n", con);
xcb_remove_property_atom(conn, con->window->id, A__NET_WM_STATE, A__NET_WM_STATE_HIDDEN);
}
state->is_hidden = should_be_hidden;
}
/*
* Set the container frame shape as the union of the window shape and the
* shape of the frame borders.
*/
static void x_shape_frame(Con *con, xcb_shape_sk_t shape_kind) {
assert(con->window);
xcb_shape_combine(conn, XCB_SHAPE_SO_SET, shape_kind, shape_kind,
con->frame.id,
con->window_rect.x + con->border_width,
con->window_rect.y + con->border_width,
con->window->id);
xcb_rectangle_t rectangles[4];
size_t rectangles_count = x_get_border_rectangles(con, rectangles);
if (rectangles_count) {
xcb_shape_rectangles(conn, XCB_SHAPE_SO_UNION, shape_kind,
XCB_CLIP_ORDERING_UNSORTED, con->frame.id,
0, 0, rectangles_count, rectangles);
}
}
/*
* Reset the container frame shape.
*/
static void x_unshape_frame(Con *con, xcb_shape_sk_t shape_kind) {
assert(con->window);
xcb_shape_mask(conn, XCB_SHAPE_SO_SET, shape_kind, con->frame.id, 0, 0, XCB_PIXMAP_NONE);
}
/*
* Shape or unshape container frame based on the con state.
*/
static void set_shape_state(Con *con, bool need_reshape) {
if (!shape_supported || con->window == NULL) {
return;
}
struct con_state *state;
if ((state = state_for_frame(con->frame.id)) == NULL) {
ELOG("window state for con %p not found\n", con);
return;
}
if (need_reshape && con_is_floating(con)) {
/* We need to reshape the window frame only if it already has shape. */
if (con->window->shaped) {
x_shape_frame(con, XCB_SHAPE_SK_BOUNDING);
}
if (con->window->input_shaped) {
x_shape_frame(con, XCB_SHAPE_SK_INPUT);
}
}
if (state->was_floating && !con_is_floating(con)) {
/* Remove the shape when container is no longer floating. */
if (con->window->shaped) {
x_unshape_frame(con, XCB_SHAPE_SK_BOUNDING);
}
if (con->window->input_shaped) {
x_unshape_frame(con, XCB_SHAPE_SK_INPUT);
}
}
}
/*
* This function pushes the properties of each node of the layout tree to
* X11 if they have changed (like the map state, position of the window, …).
* It recursively traverses all children of the given node.
*
*/
void x_push_node(Con *con) {
Con *current;
con_state *state;
Rect rect = con->rect;
state = state_for_frame(con->frame.id);
if (state->name != NULL) {
DLOG("pushing name %s for con %p\n", state->name, con);
xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->frame.id,
XCB_ATOM_WM_NAME, XCB_ATOM_STRING, 8, strlen(state->name), state->name);
FREE(state->name);
}
if (con->window == NULL) {
/* Calculate the height of all window decorations which will be drawn on to
* this frame. */
uint32_t max_y = 0, max_height = 0;
TAILQ_FOREACH (current, &(con->nodes_head), nodes) {
Rect *dr = &(current->deco_rect);
if (dr->y >= max_y && dr->height >= max_height) {
max_y = dr->y;
max_height = dr->height;
}
}
rect.height = max_y + max_height;
if (rect.height == 0)
con->mapped = false;
}
bool need_reshape = false;
/* reparent the child window (when the window was moved due to a sticky
* container) */
if (state->need_reparent && con->window != NULL) {
DLOG("Reparenting child window\n");
/* Temporarily set the event masks to XCB_NONE so that we won’t get
* UnmapNotify events (otherwise the handler would close the container).
* These events are generated automatically when reparenting. */
uint32_t values[] = {XCB_NONE};
xcb_change_window_attributes(conn, state->old_frame, XCB_CW_EVENT_MASK, values);
xcb_change_window_attributes(conn, con->window->id, XCB_CW_EVENT_MASK, values);
xcb_reparent_window(conn, con->window->id, con->frame.id, 0, 0);
values[0] = FRAME_EVENT_MASK;
xcb_change_window_attributes(conn, state->old_frame, XCB_CW_EVENT_MASK, values);
values[0] = CHILD_EVENT_MASK;
xcb_change_window_attributes(conn, con->window->id, XCB_CW_EVENT_MASK, values);
state->old_frame = XCB_NONE;
state->need_reparent = false;
con->ignore_unmap++;
DLOG("ignore_unmap for reparenting of con %p (win 0x%08x) is now %d\n",
con, con->window->id, con->ignore_unmap);
need_reshape = true;
}
/* We need to update shape when window frame dimensions is updated. */
need_reshape |= state->rect.width != rect.width ||
state->rect.height != rect.height ||
state->window_rect.width != con->window_rect.width ||
state->window_rect.height != con->window_rect.height;
/* We need to set shape when container becomes floating. */
need_reshape |= con_is_floating(con) && !state->was_floating;
/* The pixmap of a borderless leaf container will not be used except
* for the titlebar in a stack or tabs (issue #1013). */
bool is_pixmap_needed = (con->border_style != BS_NONE ||
!con_is_leaf(con) ||
con->parent->layout == L_STACKED ||
con->parent->layout == L_TABBED);
/* The root con and output cons will never require a pixmap. In particular for the
* __i3 output, this will likely not work anyway because it might be ridiculously
* large, causing an XCB_ALLOC error. */
if (con->type == CT_ROOT || con->type == CT_OUTPUT)
is_pixmap_needed = false;
bool fake_notify = false;
/* Set new position if rect changed (and if height > 0) or if the pixmap
* needs to be recreated */
if ((is_pixmap_needed && con->frame_buffer.id == XCB_NONE) || (!rect_equals(state->rect, rect) &&
rect.height > 0)) {
/* We first create the new pixmap, then render to it, set it as the
* background and only afterwards change the window size. This reduces
* flickering. */
bool has_rect_changed = (state->rect.x != rect.x || state->rect.y != rect.y ||
state->rect.width != rect.width || state->rect.height != rect.height);
/* Check if the container has an unneeded pixmap left over from
* previously having a border or titlebar. */
if (!is_pixmap_needed && con->frame_buffer.id != XCB_NONE) {
draw_util_surface_free(conn, &(con->frame_buffer));
xcb_free_pixmap(conn, con->frame_buffer.id);
con->frame_buffer.id = XCB_NONE;
}
if (is_pixmap_needed && (has_rect_changed || con->frame_buffer.id == XCB_NONE)) {
if (con->frame_buffer.id == XCB_NONE) {
con->frame_buffer.id = xcb_generate_id(conn);
} else {
draw_util_surface_free(conn, &(con->frame_buffer));
xcb_free_pixmap(conn, con->frame_buffer.id);
}
uint16_t win_depth = root_depth;
if (con->window)
win_depth = con->window->depth;
/* Ensure we have valid dimensions for our surface. */
/* TODO: This is probably a bug in the condition above as we should
* never enter this path for height == 0. Also, we should probably
* handle width == 0 the same way. */
int width = MAX((int32_t)rect.width, 1);
int height = MAX((int32_t)rect.height, 1);
xcb_create_pixmap(conn, win_depth, con->frame_buffer.id, con->frame.id, width, height);
draw_util_surface_init(conn, &(con->frame_buffer), con->frame_buffer.id,
get_visualtype_by_id(get_visualid_by_depth(win_depth)), width, height);
draw_util_clear_surface(&(con->frame_buffer), (color_t){.red = 0.0, .green = 0.0, .blue = 0.0});
/* For the graphics context, we disable GraphicsExposure events.
* Those will be sent when a CopyArea request cannot be fulfilled
* properly due to parts of the source being unmapped or otherwise
* unavailable. Since we always copy from pixmaps to windows, this
* is not a concern for us. */
xcb_change_gc(conn, con->frame_buffer.gc, XCB_GC_GRAPHICS_EXPOSURES, (uint32_t[]){0});
draw_util_surface_set_size(&(con->frame), width, height);
con->pixmap_recreated = true;
/* Don’t render the decoration for windows inside a stack which are
* not visible right now
* TODO: Should this work the same way for L_TABBED? */
if (!con->parent ||
con->parent->layout != L_STACKED ||
TAILQ_FIRST(&(con->parent->focus_head)) == con)
/* Render the decoration now to make the correct decoration visible
* from the very first moment. Later calls will be cached, so this
* doesn’t hurt performance. */
x_deco_recurse(con);
}
DLOG("setting rect (%d, %d, %d, %d)\n", rect.x, rect.y, rect.width, rect.height);
/* flush to ensure that the following commands are sent in a single
* buffer and will be processed directly afterwards (the contents of a
* window get lost when resizing it, therefore we want to provide it as
* fast as possible) */
xcb_flush(conn);
xcb_set_window_rect(conn, con->frame.id, rect);
if (con->frame_buffer.id != XCB_NONE) {
draw_util_copy_surface(&(con->frame_buffer), &(con->frame), 0, 0, 0, 0, con->rect.width, con->rect.height);
}
xcb_flush(conn);
memcpy(&(state->rect), &rect, sizeof(Rect));
fake_notify = true;
}
/* dito, but for child windows */
if (con->window != NULL &&
!rect_equals(state->window_rect, con->window_rect)) {
DLOG("setting window rect (%d, %d, %d, %d)\n",
con->window_rect.x, con->window_rect.y, con->window_rect.width, con->window_rect.height);
xcb_set_window_rect(conn, con->window->id, con->window_rect);
memcpy(&(state->window_rect), &(con->window_rect), sizeof(Rect));
fake_notify = true;
}
set_shape_state(con, need_reshape);
/* Map if map state changed, also ensure that the child window
* is changed if we are mapped and there is a new, unmapped child window.
* Unmaps are handled in x_push_node_unmaps(). */
if ((state->mapped != con->mapped || (con->window != NULL && !state->child_mapped)) &&
con->mapped) {
xcb_void_cookie_t cookie;
if (con->window != NULL) {
/* Set WM_STATE_NORMAL because GTK applications don’t want to
* drag & drop if we don’t. Also, xprop(1) needs it. */
long data[] = {XCB_ICCCM_WM_STATE_NORMAL, XCB_NONE};
xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->window->id,
A_WM_STATE, A_WM_STATE, 32, 2, data);
}
uint32_t values[1];
if (!state->child_mapped && con->window != NULL) {
cookie = xcb_map_window(conn, con->window->id);
/* We are interested in EnterNotifys as soon as the window is
* mapped */
values[0] = CHILD_EVENT_MASK;
xcb_change_window_attributes(conn, con->window->id, XCB_CW_EVENT_MASK, values);
DLOG("mapping child window (serial %d)\n", cookie.sequence);
state->child_mapped = true;
}
cookie = xcb_map_window(conn, con->frame.id);
values[0] = FRAME_EVENT_MASK;
xcb_change_window_attributes(conn, con->frame.id, XCB_CW_EVENT_MASK, values);
/* copy the pixmap contents to the frame window immediately after mapping */
if (con->frame_buffer.id != XCB_NONE) {
draw_util_copy_surface(&(con->frame_buffer), &(con->frame), 0, 0, 0, 0, con->rect.width, con->rect.height);
}
xcb_flush(conn);
DLOG("mapping container %08x (serial %d)\n", con->frame.id, cookie.sequence);
state->mapped = con->mapped;
}
state->unmap_now = (state->mapped != con->mapped) && !con->mapped;
state->was_floating = con_is_floating(con);
if (fake_notify) {
DLOG("Sending fake configure notify\n");
fake_absolute_configure_notify(con);
}
set_hidden_state(con);
/* Handle all children and floating windows of this node. We recurse
* in focus order to display the focused client in a stack first when
* switching workspaces (reduces flickering). */
TAILQ_FOREACH (current, &(con->focus_head), focused) {
x_push_node(current);
}
}
/*
* Same idea as in x_push_node(), but this function only unmaps windows. It is
* necessary to split this up to handle new fullscreen clients properly: The
* new window needs to be mapped and focus needs to be set *before* the
* underlying windows are unmapped. Otherwise, focus will revert to the
* PointerRoot and will then be set to the new window, generating unnecessary
* FocusIn/FocusOut events.
*
*/
static void x_push_node_unmaps(Con *con) {
Con *current;
con_state *state;
state = state_for_frame(con->frame.id);
/* map/unmap if map state changed, also ensure that the child window
* is changed if we are mapped *and* in initial state (meaning the
* container was empty before, but now got a child) */
if (state->unmap_now) {
xcb_void_cookie_t cookie;
if (con->window != NULL) {
/* Set WM_STATE_WITHDRAWN, it seems like Java apps need it */
long data[] = {XCB_ICCCM_WM_STATE_WITHDRAWN, XCB_NONE};
xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->window->id,
A_WM_STATE, A_WM_STATE, 32, 2, data);
}
cookie = xcb_unmap_window(conn, con->frame.id);
DLOG("unmapping container %p / %s (serial %d)\n", con, con->name, cookie.sequence);
/* we need to increase ignore_unmap for this container (if it
* contains a window) and for every window "under" this one which
* contains a window */
if (con->window != NULL) {
con->ignore_unmap++;
DLOG("ignore_unmap for con %p (frame 0x%08x) now %d\n", con, con->frame.id, con->ignore_unmap);
}
state->mapped = con->mapped;
}
/* handle all children and floating windows of this node */
TAILQ_FOREACH (current, &(con->nodes_head), nodes) {
x_push_node_unmaps(current);
}
TAILQ_FOREACH (current, &(con->floating_head), floating_windows) {
x_push_node_unmaps(current);
}
}
/*
* Returns true if the given container is currently attached to its parent.
*
* TODO: Remove once #1185 has been fixed
*/
static bool is_con_attached(Con *con) {
if (con->parent == NULL)
return false;
Con *current;
TAILQ_FOREACH (current, &(con->parent->nodes_head), nodes) {
if (current == con)
return true;
}
return false;
}
/*
* Pushes all changes (state of each node, see x_push_node() and the window
* stack) to X11.
*
* NOTE: We need to push the stack first so that the windows have the correct
* stacking order. This is relevant for workspace switching where we map the
* windows because mapping may generate EnterNotify events. When they are
* generated in the wrong order, this will cause focus problems when switching
* workspaces.
*
*/
void x_push_changes(Con *con) {
con_state *state;
xcb_query_pointer_cookie_t pointercookie;
/* If we need to warp later, we request the pointer position as soon as possible */
if (warp_to) {
pointercookie = xcb_query_pointer(conn, root);
}
DLOG("-- PUSHING WINDOW STACK --\n");
/* We need to keep SubstructureRedirect around, otherwise clients can send
* ConfigureWindow requests and get them applied directly instead of having
* them become ConfigureRequests that i3 handles. */
uint32_t values[1] = {XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT};
CIRCLEQ_FOREACH_REVERSE (state, &state_head, state) {
if (state->mapped)
xcb_change_window_attributes(conn, state->id, XCB_CW_EVENT_MASK, values);
}
bool order_changed = false;
bool stacking_changed = false;
/* count first, necessary to (re)allocate memory for the bottom-to-top
* stack afterwards */
int cnt = 0;
CIRCLEQ_FOREACH_REVERSE (state, &state_head, state) {
if (con_has_managed_window(state->con)) {
cnt++;
}
}
/* The bottom-to-top window stack of all windows which are managed by i3.
* Used for x_get_window_stack(). */
static xcb_window_t *client_list_windows = NULL;
static int client_list_count = 0;
if (cnt != client_list_count) {
client_list_windows = srealloc(client_list_windows, sizeof(xcb_window_t) * cnt);
client_list_count = cnt;
}
xcb_window_t *walk = client_list_windows;
/* X11 correctly represents the stack if we push it from bottom to top */
CIRCLEQ_FOREACH_REVERSE (state, &state_head, state) {
if (con_has_managed_window(state->con))
memcpy(walk++, &(state->con->window->id), sizeof(xcb_window_t));
con_state *prev = CIRCLEQ_PREV(state, state);
con_state *old_prev = CIRCLEQ_PREV(state, old_state);
if (prev != old_prev)
order_changed = true;
if ((state->initial || order_changed) && prev != CIRCLEQ_END(&state_head)) {
stacking_changed = true;
uint32_t mask = 0;
mask |= XCB_CONFIG_WINDOW_SIBLING;
mask |= XCB_CONFIG_WINDOW_STACK_MODE;
uint32_t values[] = {state->id, XCB_STACK_MODE_ABOVE};
xcb_configure_window(conn, prev->id, mask, values);
}
state->initial = false;
}
/* If we re-stacked something (or a new window appeared), we need to update
* the _NET_CLIENT_LIST and _NET_CLIENT_LIST_STACKING hints */
if (stacking_changed) {
DLOG("Client list changed (%i clients)\n", cnt);
ewmh_update_client_list_stacking(client_list_windows, client_list_count);
walk = client_list_windows;
/* reorder by initial mapping */
TAILQ_FOREACH (state, &initial_mapping_head, initial_mapping_order) {
if (con_has_managed_window(state->con))
*walk++ = state->con->window->id;
}
ewmh_update_client_list(client_list_windows, client_list_count);
}
DLOG("PUSHING CHANGES\n");
x_push_node(con);
if (warp_to) {
xcb_query_pointer_reply_t *pointerreply = xcb_query_pointer_reply(conn, pointercookie, NULL);
if (!pointerreply) {
ELOG("Could not query pointer position, not warping pointer\n");
} else {
int mid_x = warp_to->x + (warp_to->width / 2);
int mid_y = warp_to->y + (warp_to->height / 2);
Output *current = get_output_containing(pointerreply->root_x, pointerreply->root_y);
Output *target = get_output_containing(mid_x, mid_y);
if (current != target) {
/* Ignore MotionNotify events generated by warping */
xcb_change_window_attributes(conn, root, XCB_CW_EVENT_MASK, (uint32_t[]){XCB_EVENT_MASK_SUBSTRUCTURE_REDIRECT});
xcb_warp_pointer(conn, XCB_NONE, root, 0, 0, 0, 0, mid_x, mid_y);
xcb_change_window_attributes(conn, root, XCB_CW_EVENT_MASK, (uint32_t[]){ROOT_EVENT_MASK});
}
free(pointerreply);
}
warp_to = NULL;
}
values[0] = FRAME_EVENT_MASK;
CIRCLEQ_FOREACH_REVERSE (state, &state_head, state) {
if (state->mapped)
xcb_change_window_attributes(conn, state->id, XCB_CW_EVENT_MASK, values);
}
x_deco_recurse(con);
xcb_window_t to_focus = focused->frame.id;
if (focused->window != NULL)
to_focus = focused->window->id;
if (focused_id != to_focus) {
if (!focused->mapped) {
DLOG("Not updating focus (to %p / %s), focused window is not mapped.\n", focused, focused->name);
/* Invalidate focused_id to correctly focus new windows with the same ID */
focused_id = XCB_NONE;
} else {
if (focused->window != NULL &&
focused->window->needs_take_focus &&
focused->window->doesnt_accept_focus) {
DLOG("Updating focus by sending WM_TAKE_FOCUS to window 0x%08x (focused: %p / %s)\n",
to_focus, focused, focused->name);
send_take_focus(to_focus, last_timestamp);
change_ewmh_focus((con_has_managed_window(focused) ? focused->window->id : XCB_WINDOW_NONE), last_focused);
if (to_focus != last_focused && is_con_attached(focused))
ipc_send_window_event("focus", focused);
} else {
DLOG("Updating focus (focused: %p / %s) to X11 window 0x%08x\n", focused, focused->name, to_focus);
/* We remove XCB_EVENT_MASK_FOCUS_CHANGE from the event mask to get
* no focus change events for our own focus changes. We only want
* these generated by the clients. */
if (focused->window != NULL) {
values[0] = CHILD_EVENT_MASK & ~(XCB_EVENT_MASK_FOCUS_CHANGE);
xcb_change_window_attributes(conn, focused->window->id, XCB_CW_EVENT_MASK, values);
}
xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, to_focus, last_timestamp);
if (focused->window != NULL) {
values[0] = CHILD_EVENT_MASK;
xcb_change_window_attributes(conn, focused->window->id, XCB_CW_EVENT_MASK, values);
}
change_ewmh_focus((con_has_managed_window(focused) ? focused->window->id : XCB_WINDOW_NONE), last_focused);
if (to_focus != XCB_NONE && to_focus != last_focused && focused->window != NULL && is_con_attached(focused))
ipc_send_window_event("focus", focused);
}
focused_id = last_focused = to_focus;
}
}
if (focused_id == XCB_NONE) {
/* If we still have no window to focus, we focus the EWMH window instead. We use this rather than the
* root window in order to avoid an X11 fallback mechanism causing a ghosting effect (see #1378). */
DLOG("Still no window focused, better set focus to the EWMH support window (%d)\n", ewmh_window);
xcb_set_input_focus(conn, XCB_INPUT_FOCUS_POINTER_ROOT, ewmh_window, last_timestamp);
change_ewmh_focus(XCB_WINDOW_NONE, last_focused);
focused_id = ewmh_window;
last_focused = XCB_NONE;
}
xcb_flush(conn);
DLOG("ENDING CHANGES\n");
/* Disable EnterWindow events for windows which will be unmapped in
* x_push_node_unmaps() now. Unmapping windows happens when switching
* workspaces. We want to avoid getting EnterNotifies during that phase
* because they would screw up our focus. One of these cases is having a
* stack with two windows. If the first window is focused and gets
* unmapped, the second one appears under the cursor and therefore gets an
* EnterNotify event. */
values[0] = FRAME_EVENT_MASK & ~XCB_EVENT_MASK_ENTER_WINDOW;
CIRCLEQ_FOREACH_REVERSE (state, &state_head, state) {
if (!state->unmap_now)
continue;
xcb_change_window_attributes(conn, state->id, XCB_CW_EVENT_MASK, values);
}
/* Push all pending unmaps */
x_push_node_unmaps(con);
/* save the current stack as old stack */
CIRCLEQ_FOREACH (state, &state_head, state) {
CIRCLEQ_REMOVE(&old_state_head, state, old_state);
CIRCLEQ_INSERT_TAIL(&old_state_head, state, old_state);
}
xcb_flush(conn);
}
/*
* Raises the specified container in the internal stack of X windows. The
* next call to x_push_changes() will make the change visible in X11.
*
*/
void x_raise_con(Con *con) {
con_state *state;
state = state_for_frame(con->frame.id);
CIRCLEQ_REMOVE(&state_head, state, state);
CIRCLEQ_INSERT_HEAD(&state_head, state, state);
}
/*
* Sets the WM_NAME property (so, no UTF8, but used only for debugging anyways)
* of the given name. Used for properly tagging the windows for easily spotting
* i3 windows in xwininfo -root -all.
*
*/
void x_set_name(Con *con, const char *name) {
struct con_state *state;
if ((state = state_for_frame(con->frame.id)) == NULL) {
ELOG("window state not found\n");
return;
}
FREE(state->name);
state->name = sstrdup(name);
}
/*
* Set up the I3_SHMLOG_PATH atom.
*
*/
void update_shmlog_atom(void) {
if (*shmlogname == '\0') {
xcb_delete_property(conn, root, A_I3_SHMLOG_PATH);
} else {
xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root,
A_I3_SHMLOG_PATH, A_UTF8_STRING, 8,
strlen(shmlogname), shmlogname);
}
}
/*
* Sets up i3 specific atoms (I3_SOCKET_PATH and I3_CONFIG_PATH)
*
*/
void x_set_i3_atoms(void) {
pid_t pid = getpid();
xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, A_I3_SOCKET_PATH, A_UTF8_STRING, 8,
(current_socketpath == NULL ? 0 : strlen(current_socketpath)),
current_socketpath);
xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, A_I3_PID, XCB_ATOM_CARDINAL, 32, 1, &pid);
xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, A_I3_CONFIG_PATH, A_UTF8_STRING, 8,
strlen(current_configpath), current_configpath);
xcb_change_property(conn, XCB_PROP_MODE_REPLACE, root, A_I3_LOG_STREAM_SOCKET_PATH, A_UTF8_STRING, 8,
strlen(current_log_stream_socket_path), current_log_stream_socket_path);
update_shmlog_atom();
}
/*
* Set warp_to coordinates. This will trigger on the next call to
* x_push_changes().
*
*/
void x_set_warp_to(Rect *rect) {
if (config.mouse_warping != POINTER_WARPING_NONE)
warp_to = rect;
}
/*
* Applies the given mask to the event mask of every i3 window decoration X11
* window. This is useful to disable EnterNotify while resizing so that focus
* is untouched.
*
*/
void x_mask_event_mask(uint32_t mask) {
uint32_t values[] = {FRAME_EVENT_MASK & mask};
con_state *state;
CIRCLEQ_FOREACH_REVERSE (state, &state_head, state) {
if (state->mapped)
xcb_change_window_attributes(conn, state->id, XCB_CW_EVENT_MASK, values);
}
}
/*
* Enables or disables nonrectangular shape of the container frame.
*/
void x_set_shape(Con *con, xcb_shape_sk_t kind, bool enable) {
struct con_state *state;
if ((state = state_for_frame(con->frame.id)) == NULL) {
ELOG("window state for con %p not found\n", con);
return;
}
switch (kind) {
case XCB_SHAPE_SK_BOUNDING:
con->window->shaped = enable;
break;
case XCB_SHAPE_SK_INPUT:
con->window->input_shaped = enable;
break;
default:
ELOG("Received unknown shape event kind for con %p. This is a bug.\n",
con);
return;
}
if (con_is_floating(con)) {
if (enable) {
x_shape_frame(con, kind);
} else {
x_unshape_frame(con, kind);
}
xcb_flush(conn);
}
}