/*
* vim:ts=4:sw=4:expandtab
+ *
+ * i3 - an improved dynamic tiling window manager
+ * © 2009-2011 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"
/* Stores the X11 window ID of the currently focused window */
xcb_window_t focused_id = XCB_NONE;
+/* The bottom-to-top window stack of all windows which are managed by i3.
+ * Used for x_get_window_stack(). */
+static xcb_window_t *btt_stack;
+static int btt_stack_num;
+
+/* 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
bool unmap_now;
bool child_mapped;
+ /** 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). */
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));
}
return;
}
+ state_dest->con = state_src->con;
+ state_src->con = NULL;
+
Rect zero = { 0, 0, 0, 0 };
if (memcmp(&(state_dest->window_rect), &(zero), sizeof(Rect)) == 0) {
memcpy(&(state_dest->window_rect), &(state_src->window_rect), sizeof(Rect));
xcb_icccm_get_wm_protocols_reply_t protocols;
bool result = false;
- cookie = xcb_icccm_get_wm_protocols_unchecked(conn, window, A_WM_PROTOCOLS);
+ 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;
return;
}
- xcb_client_message_event_t ev;
-
- memset(&ev, 0, sizeof(xcb_client_message_event_t));
+ /* 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);
+ 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;
+ 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_send_event(conn, false, window, XCB_EVENT_MASK_NO_EVENT, (char*)ev);
xcb_flush(conn);
+ free(event);
}
/*
*/
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:
* • floating containers (they don’t have a decoration)
*/
- if ((!con_is_leaf(con) &&
+ if ((!leaf &&
parent->layout != L_STACKED &&
parent->layout != L_TABBED) ||
con->type == CT_FLOATING_CON)
return;
- DLOG("decoration should be rendered for con %p\n", con);
/* Skip containers whose height is 0 (for example empty dockareas) */
- if (con->rect.height == 0) {
- DLOG("height == 0, not rendering\n");
+ 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->pixmap == XCB_NONE)
return;
- }
/* 1: build deco_params and compare with cache */
struct deco_render_params *p = scalloc(sizeof(struct deco_render_params));
/* find out which colors to use */
if (con->urgent)
p->color = &config.client.urgent;
- else if (con == focused)
+ else if (con == focused || con_inside_focused(con))
p->color = &config.client.focused;
else if (con == TAILQ_FIRST(&(parent->focus_head)))
p->color = &config.client.focused_inactive;
p->con_deco_rect = con->deco_rect;
p->background = config.client.background;
p->con_is_leaf = con_is_leaf(con);
- p->font = config.font.id;
if (con->deco_render_params != NULL &&
(con->window == NULL || !con->window->name_x_changed) &&
!parent->pixmap_recreated &&
!con->pixmap_recreated &&
memcmp(p, con->deco_render_params, sizeof(struct deco_render_params)) == 0) {
- DLOG("CACHE HIT, copying existing pixmaps\n");
free(p);
goto copy_pixmaps;
}
- DLOG("CACHE MISS\n");
Con *next = con;
while ((next = TAILQ_NEXT(next, nodes))) {
- DLOG("Also invalidating cache of %p\n", next);
FREE(next->deco_render_params);
}
parent->pixmap_recreated = false;
con->pixmap_recreated = false;
- /* If the con is in fullscreen mode, the decoration height we work with is set to 0 */
- Rect deco_rect = con->deco_rect;
- if (con_get_fullscreen_con(parent, CF_OUTPUT) == con)
- deco_rect.height = 0;
-
/* 2: draw the client.background, but only for the parts around the client_rect */
if (con->window != NULL) {
xcb_rectangle_t background[] = {
);
#endif
- xcb_change_gc_single(conn, con->pm_gc, XCB_GC_FOREGROUND, config.client.background);
+ xcb_change_gc(conn, con->pm_gc, XCB_GC_FOREGROUND, (uint32_t[]) { config.client.background });
xcb_poly_fill_rectangle(conn, con->pixmap, con->pm_gc, sizeof(background) / sizeof(xcb_rectangle_t), background);
}
* (left, bottom and right part). We don’t just fill the whole
* rectangle because some childs are not freely resizable and we want
* their background color to "shine through". */
- xcb_change_gc_single(conn, con->pm_gc, XCB_GC_FOREGROUND, p->color->background);
+ xcb_change_gc(conn, con->pm_gc, XCB_GC_FOREGROUND, (uint32_t[]){ p->color->background });
xcb_rectangle_t borders[] = {
{ 0, 0, br.x, r->height },
{ 0, r->height + br.height + br.y, r->width, r->height },
/* if this is a borderless/1pixel window, we don’t * need to render the
* decoration. */
- if (p->border_style != BS_NORMAL) {
- DLOG("border style not BS_NORMAL, aborting rendering of decoration\n");
+ if (p->border_style != BS_NORMAL)
goto copy_pixmaps;
- }
/* 4: paint the bar */
- xcb_change_gc_single(conn, parent->pm_gc, XCB_GC_FOREGROUND, p->color->background);
+ xcb_change_gc(conn, parent->pm_gc, XCB_GC_FOREGROUND, (uint32_t[]){ p->color->background });
xcb_rectangle_t drect = { con->deco_rect.x, con->deco_rect.y, con->deco_rect.width, con->deco_rect.height };
xcb_poly_fill_rectangle(conn, parent->pixmap, parent->pm_gc, 1, &drect);
- /* 5: draw the two lines in border color */
- xcb_draw_line(conn, parent->pixmap, parent->pm_gc, p->color->border,
- con->deco_rect.x, /* x */
- con->deco_rect.y, /* y */
- con->deco_rect.x + con->deco_rect.width, /* to_x */
- con->deco_rect.y); /* to_y */
- xcb_draw_line(conn, parent->pixmap, parent->pm_gc, p->color->border,
- con->deco_rect.x, /* x */
- con->deco_rect.y + con->deco_rect.height - 1, /* y */
- con->deco_rect.x + con->deco_rect.width, /* to_x */
- con->deco_rect.y + con->deco_rect.height - 1); /* to_y */
+ /* 5: draw two unconnected lines in border color */
+ xcb_change_gc(conn, parent->pm_gc, XCB_GC_FOREGROUND, (uint32_t[]){ p->color->border });
+ Rect *dr = &(con->deco_rect);
+ xcb_segment_t segments[] = {
+ { dr->x, dr->y,
+ dr->x + dr->width - 1, dr->y },
+
+ { dr->x + 2, dr->y + dr->height - 1,
+ dr->x + dr->width - 3, dr->y + dr->height - 1 }
+ };
+ xcb_poly_segment(conn, parent->pixmap, parent->pm_gc, 2, segments);
/* 6: draw the title */
- uint32_t mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND | XCB_GC_FONT;
- uint32_t values[] = { p->color->text, p->color->background, config.font.id };
- xcb_change_gc(conn, parent->pm_gc, mask, values);
- int text_offset_y = config.font.height + (con->deco_rect.height - config.font.height) / 2 - 1;
+ set_font_colors(parent->pm_gc, p->color->text, p->color->background);
+ int text_offset_y = (con->deco_rect.height - config.font.height) / 2;
struct Window *win = con->window;
if (win == NULL || win->name_x == NULL) {
/* this is a non-leaf container, we need to make up a good description */
// TODO: use a good description instead of just "another container"
- xcb_image_text_8(
- conn,
- strlen("another container"),
- parent->pixmap,
- parent->pm_gc,
- con->deco_rect.x + 2,
- con->deco_rect.y + text_offset_y,
- "another container"
- );
-
+ draw_text("another container", strlen("another container"), false,
+ parent->pixmap, parent->pm_gc,
+ con->deco_rect.x + 2, con->deco_rect.y + text_offset_y,
+ con->deco_rect.width - 2);
goto copy_pixmaps;
}
Con *il_parent = parent;
if (il_parent->layout != L_STACKED) {
while (1) {
- DLOG("il_parent = %p, layout = %d\n", il_parent, il_parent->layout);
+ //DLOG("il_parent = %p, layout = %d\n", il_parent, il_parent->layout);
if (il_parent->layout == L_STACKED)
indent_level++;
if (il_parent->type == CT_WORKSPACE || il_parent->type == CT_DOCKAREA || il_parent->type == CT_OUTPUT)
indent_mult++;
}
}
- DLOG("indent_level = %d, indent_mult = %d\n", indent_level, indent_mult);
+ //DLOG("indent_level = %d, indent_mult = %d\n", indent_level, indent_mult);
int indent_px = (indent_level * 5) * indent_mult;
- if (win->uses_net_wm_name)
- xcb_image_text_16(
- conn,
- win->name_len,
- parent->pixmap,
- parent->pm_gc,
- con->deco_rect.x + 2 + indent_px,
- con->deco_rect.y + text_offset_y,
- (xcb_char2b_t*)win->name_x
- );
- else
- xcb_image_text_8(
- conn,
- win->name_len,
- parent->pixmap,
- parent->pm_gc,
- con->deco_rect.x + 2 + indent_px,
- con->deco_rect.y + text_offset_y,
- win->name_x
- );
+ draw_text(win->name_x, win->name_len, win->uses_net_wm_name,
+ parent->pixmap, parent->pm_gc,
+ con->deco_rect.x + 2 + indent_px, con->deco_rect.y + text_offset_y,
+ con->deco_rect.width - 2 - indent_px);
copy_pixmaps:
xcb_copy_area(conn, con->pixmap, con->frame, con->pm_gc, 0, 0, 0, 0, con->rect.width, con->rect.height);
* while drawing the decoration needs to happen in the actual order.
*
*/
-static void x_deco_recurse(Con *con) {
+void x_deco_recurse(Con *con) {
Con *current;
bool leaf = TAILQ_EMPTY(&(con->nodes_head)) &&
TAILQ_EMPTY(&(con->floating_head));
}
if ((con->type != CT_ROOT && con->type != CT_OUTPUT) &&
- con->mapped)
+ (!leaf || con->mapped))
x_draw_decoration(con);
}
DLOG("pushing name %s for con %p\n", state->name, con);
xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->frame,
- A_WM_NAME, A_STRING, 8, strlen(state->name), state->name);
+ XCB_ATOM_WM_NAME, XCB_ATOM_STRING, 8, strlen(state->name), state->name);
FREE(state->name);
}
}
}
rect.height = max_y + max_height;
- if (rect.height == 0) {
- DLOG("Unmapping container %p because it does not contain anything.\n", con);
+ if (rect.height == 0)
con->mapped = false;
- }
}
/* reparent the child window (when the window was moved due to a sticky
}
bool fake_notify = false;
- /* set new position if rect changed */
- if (memcmp(&(state->rect), &rect, sizeof(Rect)) != 0) {
+ /* Set new position if rect changed (and if height > 0) */
+ if (memcmp(&(state->rect), &rect, sizeof(Rect)) != 0 &&
+ 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. */
* is enough to check if width/height have changed. Also, we don’t
* create a pixmap at all when the window is actually not visible
* (height == 0). */
- if (rect.height > 0 &&
- (state->rect.width != rect.width ||
+ if ((state->rect.width != rect.width ||
state->rect.height != rect.height)) {
- DLOG("CACHE: creating new pixmap for con %p (old: %d x %d, new: %d x %d)\n",
- con, state->rect.width, state->rect.height,
- rect.width, rect.height);
if (con->pixmap == 0) {
con->pixmap = xcb_generate_id(conn);
con->pm_gc = xcb_generate_id(conn);
xcb_free_gc(conn, con->pm_gc);
}
xcb_create_pixmap(conn, root_depth, con->pixmap, con->frame, rect.width, rect.height);
- xcb_create_gc(conn, con->pm_gc, con->pixmap, 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. */
+ uint32_t values[] = { 0 };
+ xcb_create_gc(conn, con->pm_gc, con->pixmap, XCB_GC_GRAPHICS_EXPOSURES, values);
con->pixmap_recreated = true;
- /* 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);
+ /* Don’t render the decoration for windows inside a stack which are
+ * not visible right now */
+ 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);
* fast as possible) */
xcb_flush(conn);
xcb_set_window_rect(conn, con->frame, rect);
- xcb_copy_area(conn, con->pixmap, con->frame, con->pm_gc, 0, 0, 0, 0, con->rect.width, con->rect.height);
+ if (con->pixmap != XCB_NONE)
+ xcb_copy_area(conn, con->pixmap, con->frame, con->pm_gc, 0, 0, 0, 0, con->rect.width, con->rect.height);
xcb_flush(conn);
memcpy(&(state->rect), &rect, sizeof(Rect));
xcb_change_window_attributes(conn, con->frame, XCB_CW_EVENT_MASK, values);
/* copy the pixmap contents to the frame window immediately after mapping */
- xcb_copy_area(conn, con->pixmap, con->frame, con->pm_gc, 0, 0, 0, 0, con->rect.width, con->rect.height);
+ if (con->pixmap != XCB_NONE)
+ xcb_copy_area(conn, con->pixmap, con->frame, con->pm_gc, 0, 0, 0, 0, con->rect.width, con->rect.height);
xcb_flush(conn);
DLOG("mapping container %08x (serial %d)\n", con->frame, cookie.sequence);
*/
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");
//DLOG("Disabling EnterNotify\n");
}
//DLOG("Done, EnterNotify disabled\n");
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 (state->con && state->con->window)
+ cnt++;
+
+ if (cnt != btt_stack_num) {
+ btt_stack = srealloc(btt_stack, sizeof(xcb_window_t) * cnt);
+ btt_stack_num = cnt;
+ }
+
+ xcb_window_t *walk = btt_stack;
+
/* X11 correctly represents the stack if we push it from bottom to top */
CIRCLEQ_FOREACH_REVERSE(state, &state_head, state) {
+ if (state->con && state->con->window)
+ memcpy(walk++, &(state->con->window->id), sizeof(xcb_window_t));
+
//DLOG("stack: 0x%08x\n", state->id);
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)) {
- DLOG("Stacking 0x%08x above 0x%08x\n", prev->id, state->id);
+ stacking_changed = true;
+ //DLOG("Stacking 0x%08x above 0x%08x\n", prev->id, state->id);
uint32_t mask = 0;
mask |= XCB_CONFIG_WINDOW_SIBLING;
mask |= XCB_CONFIG_WINDOW_STACK_MODE;
}
state->initial = false;
}
+
+ /* If we re-stacked something (or a new window appeared), we need to update
+ * the _NET_CLIENT_LIST_STACKING hint */
+ if (stacking_changed)
+ ewmh_update_client_list_stacking(btt_stack, btt_stack_num);
+
+ 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)
+ xcb_warp_pointer(conn, XCB_NONE, root, 0, 0, 0, 0, mid_x, mid_y);
+ }
+ warp_to = NULL;
+ }
+
//DLOG("Re-enabling EnterNotify\n");
values[0] = FRAME_EVENT_MASK;
CIRCLEQ_FOREACH_REVERSE(state, &state_head, state) {
}
//DLOG("Done, EnterNotify re-enabled\n");
- DLOG("\n\n PUSHING CHANGES\n\n");
- x_push_node(con);
x_deco_recurse(con);
xcb_window_t to_focus = focused->frame;
if (focused->window != NULL)
to_focus = focused->window->id;
- DLOG("focused_id = 0x%08x, to_focus = 0x%08x\n", focused_id, to_focus);
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 {
- DLOG("Updating focus (focused: %p / %s)\n", focused, focused->name);
- /* 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, XCB_CURRENT_TIME);
- if (focused->window != NULL) {
- values[0] = CHILD_EVENT_MASK;
- xcb_change_window_attributes(conn, focused->window->id, XCB_CW_EVENT_MASK, values);
- }
-
if (focused->window != NULL &&
focused->window->needs_take_focus) {
+ DLOG("Updating focus by sending WM_TAKE_FOCUS to window 0x%08x only (focused: %p / %s)\n",
+ to_focus, focused, focused->name);
send_take_focus(to_focus);
+ } else {
+ DLOG("Updating focus (focused: %p / %s)\n", focused, focused->name);
+ /* 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, XCB_CURRENT_TIME);
+ if (focused->window != NULL) {
+ values[0] = CHILD_EVENT_MASK;
+ xcb_change_window_attributes(conn, focused->window->id, XCB_CW_EVENT_MASK, values);
+ }
+
+ ewmh_update_active_window(to_focus);
}
- ewmh_update_active_window(to_focus);
focused_id = to_focus;
}
}
}
xcb_flush(conn);
- DLOG("\n\n ENDING CHANGES\n\n");
+ DLOG("ENDING CHANGES\n");
/* Disable EnterWindow events for windows which will be unmapped in
* x_push_node_unmaps() now. Unmapping windows happens when switching
current_socketpath);
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_SHMLOG_PATH, A_UTF8_STRING, 8,
+ strlen(shmlogname), shmlogname);
+}
+
+/*
+ * Set warp_to coordinates. This will trigger on the next call to
+ * x_push_changes().
+ *
+ */
+void x_set_warp_to(Rect *rect)
+{
+ 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);
+ }
}
projects / i3 / i3 / blobdiff