/* * Compton - a compositor for X11 * * Based on `xcompmgr` - Copyright (c) 2003, Keith Packard * * Copyright (c) 2011, Christopher Jeffrey * See LICENSE for more information. * */ #include "compton.h" /** * Shared */ const char *WINTYPES[NUM_WINTYPES] = { "unknown", "desktop", "dock", "toolbar", "menu", "utility", "splash", "dialog", "normal", "dropdown_menu", "popup_menu", "tooltip", "notify", "combo", "dnd", }; struct timeval time_start = { 0, 0 }; win *list; Display *dpy; int scr; Window root; Picture root_picture; Picture root_buffer; Picture black_picture; Picture cshadow_picture; /// Picture used for dimming inactive windows. Picture dim_picture = 0; Picture root_tile; XserverRegion all_damage; #if HAS_NAME_WINDOW_PIXMAP Bool has_name_pixmap; #endif int root_height, root_width; /* errors */ ignore *ignore_head = NULL, **ignore_tail = &ignore_head; int xfixes_event, xfixes_error; int damage_event, damage_error; int composite_event, composite_error; /// Whether X Shape extension exists. Bool shape_exists = True; /// Event base number and error base number for X Shape extension. int shape_event, shape_error; int render_event, render_error; int composite_opcode; /* shadows */ conv *gaussian_map; /* for shadow precomputation */ int cgsize = -1; unsigned char *shadow_corner = NULL; unsigned char *shadow_top = NULL; /* for root tile */ static const char *background_props[] = { "_XROOTPMAP_ID", "_XSETROOT_ID", 0, }; /* for expose events */ XRectangle *expose_rects = 0; int size_expose = 0; int n_expose = 0; // atoms Atom extents_atom; Atom opacity_atom; Atom frame_extents_atom; Atom client_atom; Atom name_atom; Atom name_ewmh_atom; Atom class_atom; Atom win_type_atom; Atom win_type[NUM_WINTYPES]; unsigned long fade_time; /** * Macros */ #define HAS_FRAME_OPACITY(w) \ (frame_opacity && (w)->top_width) /** * Options */ static options_t opts = { .display = NULL, .shadow_radius = 12, .shadow_offset_x = -15, .shadow_offset_y = -15, .shadow_opacity = .75, .fade_in_step = 0.028 * OPAQUE, .fade_out_step = 0.03 * OPAQUE, .fade_delta = 10, .fade_trans = False, .clear_shadow = False, .inactive_opacity = 0, .inactive_opacity_override = False, .frame_opacity = 0.0, .inactive_dim = 0.0, .mark_wmwin_focused = False, .shadow_blacklist = NULL, .fade_blacklist = NULL, .fork_after_register = False, .shadow_red = 0.0, .shadow_green = 0.0, .shadow_blue = 0.0, .wintype_opacity = { 0.0 }, .wintype_shadow = { False }, .wintype_fade = { False }, .synchronize = False, .track_focus = False, .track_wdata = False, }; /** * Fades */ /** * Get current system clock in milliseconds. * * The return type must be unsigned long because so many milliseconds have * passed since the epoch. */ static unsigned long get_time_in_milliseconds() { struct timeval tv; gettimeofday(&tv, NULL); return tv.tv_sec * 1000 + tv.tv_usec / 1000; } /** * Get the time left before next fading point. * * In milliseconds. */ static int fade_timeout(void) { int diff = opts.fade_delta - get_time_in_milliseconds() + fade_time; if (diff < 0) diff = 0; return diff; } /** * Run fading on a window. * * @param steps steps of fading */ static void run_fade(Display *dpy, win *w, unsigned steps) { // If we reach target opacity, set fade_fin so the callback gets // executed if (w->opacity == w->opacity_tgt) { w->fade_fin = True; return; } if (!w->fade) w->opacity = w->opacity_tgt; else if (steps) { // Use double below because opacity_t will probably overflow during // calculations if (w->opacity < w->opacity_tgt) w->opacity = normalize_d_range( (double) w->opacity + (double) opts.fade_in_step * steps, 0.0, w->opacity_tgt); else w->opacity = normalize_d_range( (double) w->opacity - (double) opts.fade_out_step * steps, w->opacity_tgt, OPAQUE); } if (w->opacity == w->opacity_tgt) { w->fade_fin = True; return; } w->fade_fin = False; } /** * Set fade callback of a window, and possibly execute the previous * callback. * * @param exec_callback whether the previous callback is to be executed */ static void set_fade_callback(Display *dpy, win *w, void (*callback) (Display *dpy, win *w), Bool exec_callback) { void (*old_callback) (Display *dpy, win *w) = w->fade_callback; w->fade_callback = callback; // Must be the last line as the callback could destroy w! if (exec_callback && old_callback) old_callback(dpy, w); } /** * Shadows */ static double gaussian(double r, double x, double y) { return ((1 / (sqrt(2 * M_PI * r))) * exp((- (x * x + y * y)) / (2 * r * r))); } static conv * make_gaussian_map(Display *dpy, double r) { conv *c; int size = ((int) ceil((r * 3)) + 1) & ~1; int center = size / 2; int x, y; double t; double g; c = malloc(sizeof(conv) + size * size * sizeof(double)); c->size = size; c->data = (double *) (c + 1); t = 0.0; for (y = 0; y < size; y++) { for (x = 0; x < size; x++) { g = gaussian(r, (double) (x - center), (double) (y - center)); t += g; c->data[y * size + x] = g; } } for (y = 0; y < size; y++) { for (x = 0; x < size; x++) { c->data[y * size + x] /= t; } } return c; } /* * A picture will help * * -center 0 width width+center * -center +-----+-------------------+-----+ * | | | | * | | | | * 0 +-----+-------------------+-----+ * | | | | * | | | | * | | | | * height +-----+-------------------+-----+ * | | | | * height+ | | | | * center +-----+-------------------+-----+ */ static unsigned char sum_gaussian(conv *map, double opacity, int x, int y, int width, int height) { int fx, fy; double *g_data; double *g_line = map->data; int g_size = map->size; int center = g_size / 2; int fx_start, fx_end; int fy_start, fy_end; double v; /* * Compute set of filter values which are "in range", * that's the set with: * 0 <= x + (fx-center) && x + (fx-center) < width && * 0 <= y + (fy-center) && y + (fy-center) < height * * 0 <= x + (fx - center) x + fx - center < width * center - x <= fx fx < width + center - x */ fx_start = center - x; if (fx_start < 0) fx_start = 0; fx_end = width + center - x; if (fx_end > g_size) fx_end = g_size; fy_start = center - y; if (fy_start < 0) fy_start = 0; fy_end = height + center - y; if (fy_end > g_size) fy_end = g_size; g_line = g_line + fy_start * g_size + fx_start; v = 0; for (fy = fy_start; fy < fy_end; fy++) { g_data = g_line; g_line += g_size; for (fx = fx_start; fx < fx_end; fx++) { v += *g_data++; } } if (v > 1) v = 1; return ((unsigned char) (v * opacity * 255.0)); } /* precompute shadow corners and sides to save time for large windows */ static void presum_gaussian(conv *map) { int center = map->size / 2; int opacity, x, y; cgsize = map->size; if (shadow_corner) free((void *)shadow_corner); if (shadow_top) free((void *)shadow_top); shadow_corner = (unsigned char *)(malloc((cgsize + 1) * (cgsize + 1) * 26)); shadow_top = (unsigned char *)(malloc((cgsize + 1) * 26)); for (x = 0; x <= cgsize; x++) { shadow_top[25 * (cgsize + 1) + x] = sum_gaussian(map, 1, x - center, center, cgsize * 2, cgsize * 2); for (opacity = 0; opacity < 25; opacity++) { shadow_top[opacity * (cgsize + 1) + x] = shadow_top[25 * (cgsize + 1) + x] * opacity / 25; } for (y = 0; y <= x; y++) { shadow_corner[25 * (cgsize + 1) * (cgsize + 1) + y * (cgsize + 1) + x] = sum_gaussian(map, 1, x - center, y - center, cgsize * 2, cgsize * 2); shadow_corner[25 * (cgsize + 1) * (cgsize + 1) + x * (cgsize + 1) + y] = shadow_corner[25 * (cgsize + 1) * (cgsize + 1) + y * (cgsize + 1) + x]; for (opacity = 0; opacity < 25; opacity++) { shadow_corner[opacity * (cgsize + 1) * (cgsize + 1) + y * (cgsize + 1) + x] = shadow_corner[opacity * (cgsize + 1) * (cgsize + 1) + x * (cgsize + 1) + y] = shadow_corner[25 * (cgsize + 1) * (cgsize + 1) + y * (cgsize + 1) + x] * opacity / 25; } } } } static XImage * make_shadow(Display *dpy, double opacity, int width, int height) { XImage *ximage; unsigned char *data; int gsize = gaussian_map->size; int ylimit, xlimit; int swidth = width + gsize; int sheight = height + gsize; int center = gsize / 2; int x, y; unsigned char d; int x_diff; int opacity_int = (int)(opacity * 25); data = malloc(swidth * sheight * sizeof(unsigned char)); if (!data) return 0; ximage = XCreateImage( dpy, DefaultVisual(dpy, DefaultScreen(dpy)), 8, ZPixmap, 0, (char *) data, swidth, sheight, 8, swidth * sizeof(unsigned char)); if (!ximage) { free(data); return 0; } /* * Build the gaussian in sections */ /* * center (fill the complete data array) */ // If clear_shadow is enabled and the border & corner shadow (which // later will be filled) could entirely cover the area of the shadow // that will be displayed, do not bother filling other pixels. If it // can't, we must fill the other pixels here. if (!(opts.clear_shadow && opts.shadow_offset_x <= 0 && opts.shadow_offset_x >= -cgsize && opts.shadow_offset_y <= 0 && opts.shadow_offset_y >= -cgsize)) { if (cgsize > 0) { d = shadow_top[opacity_int * (cgsize + 1) + cgsize]; } else { d = sum_gaussian(gaussian_map, opacity, center, center, width, height); } memset(data, d, sheight * swidth); } /* * corners */ ylimit = gsize; if (ylimit > sheight / 2) ylimit = (sheight + 1) / 2; xlimit = gsize; if (xlimit > swidth / 2) xlimit = (swidth + 1) / 2; for (y = 0; y < ylimit; y++) { for (x = 0; x < xlimit; x++) { if (xlimit == cgsize && ylimit == cgsize) { d = shadow_corner[opacity_int * (cgsize + 1) * (cgsize + 1) + y * (cgsize + 1) + x]; } else { d = sum_gaussian(gaussian_map, opacity, x - center, y - center, width, height); } data[y * swidth + x] = d; data[(sheight - y - 1) * swidth + x] = d; data[(sheight - y - 1) * swidth + (swidth - x - 1)] = d; data[y * swidth + (swidth - x - 1)] = d; } } /* * top/bottom */ x_diff = swidth - (gsize * 2); if (x_diff > 0 && ylimit > 0) { for (y = 0; y < ylimit; y++) { if (ylimit == cgsize) { d = shadow_top[opacity_int * (cgsize + 1) + y]; } else { d = sum_gaussian(gaussian_map, opacity, center, y - center, width, height); } memset(&data[y * swidth + gsize], d, x_diff); memset(&data[(sheight - y - 1) * swidth + gsize], d, x_diff); } } /* * sides */ for (x = 0; x < xlimit; x++) { if (xlimit == cgsize) { d = shadow_top[opacity_int * (cgsize + 1) + x]; } else { d = sum_gaussian(gaussian_map, opacity, x - center, center, width, height); } for (y = gsize; y < sheight - gsize; y++) { data[y * swidth + x] = d; data[y * swidth + (swidth - x - 1)] = d; } } if (opts.clear_shadow) { // Clear the region in the shadow that the window would cover based // on shadow_offset_{x,y} user provides int xstart = normalize_i_range(- (int) opts.shadow_offset_x, 0, swidth); int xrange = normalize_i_range(width - (int) opts.shadow_offset_x, 0, swidth) - xstart; int ystart = normalize_i_range(- (int) opts.shadow_offset_y, 0, sheight); int yend = normalize_i_range(height - (int) opts.shadow_offset_y, 0, sheight); int y; for (y = ystart; y < yend; y++) { memset(&data[y * swidth + xstart], 0, xrange); } } return ximage; } static Picture shadow_picture(Display *dpy, double opacity, int width, int height) { XImage *shadow_image; Pixmap shadow_pixmap; Picture shadow_picture; GC gc; shadow_image = make_shadow(dpy, opacity, width, height); if (!shadow_image) return None; shadow_pixmap = XCreatePixmap(dpy, root, shadow_image->width, shadow_image->height, 8); if (!shadow_pixmap) { XDestroyImage(shadow_image); return None; } shadow_picture = XRenderCreatePicture(dpy, shadow_pixmap, XRenderFindStandardFormat(dpy, PictStandardA8), 0, 0); if (!shadow_picture) { XDestroyImage(shadow_image); XFreePixmap(dpy, shadow_pixmap); return None; } gc = XCreateGC(dpy, shadow_pixmap, 0, 0); if (!gc) { XDestroyImage(shadow_image); XFreePixmap(dpy, shadow_pixmap); XRenderFreePicture(dpy, shadow_picture); return None; } XPutImage( dpy, shadow_pixmap, gc, shadow_image, 0, 0, 0, 0, shadow_image->width, shadow_image->height); XFreeGC(dpy, gc); XDestroyImage(shadow_image); XFreePixmap(dpy, shadow_pixmap); return shadow_picture; } static Picture solid_picture(Display *dpy, Bool argb, double a, double r, double g, double b) { Pixmap pixmap; Picture picture; XRenderPictureAttributes pa; XRenderColor c; pixmap = XCreatePixmap(dpy, root, 1, 1, argb ? 32 : 8); if (!pixmap) return None; pa.repeat = True; picture = XRenderCreatePicture(dpy, pixmap, XRenderFindStandardFormat(dpy, argb ? PictStandardARGB32 : PictStandardA8), CPRepeat, &pa); if (!picture) { XFreePixmap(dpy, pixmap); return None; } c.alpha = a * 0xffff; c.red = r * 0xffff; c.green = g * 0xffff; c.blue = b * 0xffff; XRenderFillRectangle(dpy, PictOpSrc, picture, &c, 0, 0, 1, 1); XFreePixmap(dpy, pixmap); return picture; } /** * Errors */ static void discard_ignore(Display *dpy, unsigned long sequence) { while (ignore_head) { if ((long) (sequence - ignore_head->sequence) > 0) { ignore *next = ignore_head->next; free(ignore_head); ignore_head = next; if (!ignore_head) { ignore_tail = &ignore_head; } } else { break; } } } static void set_ignore(Display *dpy, unsigned long sequence) { ignore *i = malloc(sizeof(ignore)); if (!i) return; i->sequence = sequence; i->next = 0; *ignore_tail = i; ignore_tail = &i->next; } static int should_ignore(Display *dpy, unsigned long sequence) { discard_ignore(dpy, sequence); return ignore_head && ignore_head->sequence == sequence; } /** * Windows */ /** * Match a window against a single window condition. * * @return true if matched, false otherwise. */ static bool win_match_once(win *w, const wincond *cond) { const char *target; bool matched = false; #ifdef DEBUG_WINMATCH printf("win_match_once(%#010lx \"%s\"): cond = %p", w->id, w->name, cond); #endif // Determine the target target = NULL; switch (cond->target) { case CONDTGT_NAME: target = w->name; break; case CONDTGT_CLASSI: target = w->class_instance; break; case CONDTGT_CLASSG: target = w->class_general; break; } if (!target) { #ifdef DEBUG_WINMATCH printf(": Target not found\n"); #endif return false; } // Determine pattern type and match switch (cond->type) { case CONDTP_EXACT: if (cond->flags & CONDF_IGNORECASE) matched = !strcasecmp(target, cond->pattern); else matched = !strcmp(target, cond->pattern); break; case CONDTP_ANYWHERE: if (cond->flags & CONDF_IGNORECASE) matched = strcasestr(target, cond->pattern); else matched = strstr(target, cond->pattern); break; case CONDTP_FROMSTART: if (cond->flags & CONDF_IGNORECASE) matched = !strncasecmp(target, cond->pattern, strlen(cond->pattern)); else matched = !strncmp(target, cond->pattern, strlen(cond->pattern)); break; case CONDTP_WILDCARD: { int flags = 0; if (cond->flags & CONDF_IGNORECASE) flags = FNM_CASEFOLD; matched = !fnmatch(cond->pattern, target, flags); } break; case CONDTP_REGEX_PCRE: #ifdef CONFIG_REGEX_PCRE matched = (pcre_exec(cond->regex_pcre, cond->regex_pcre_extra, target, strlen(target), 0, 0, NULL, 0) >= 0); #endif break; } #ifdef DEBUG_WINMATCH printf(", matched = %d\n", matched); #endif return matched; } /** * Match a window against a condition linked list. * * @param cache a place to cache the last matched condition * @return true if matched, false otherwise. */ static bool win_match(win *w, wincond *condlst, wincond **cache) { // Check if the cached entry matches firstly if (cache && *cache && win_match_once(w, *cache)) return true; // Then go through the whole linked list for (; condlst; condlst = condlst->next) { if (win_match_once(w, condlst)) { *cache = condlst; return true; } } return false; } /** * Add a pattern to a condition linked list. */ static Bool condlst_add(wincond **pcondlst, const char *pattern) { if (!pattern) return False; unsigned plen = strlen(pattern); wincond *cond; const char *pos; if (plen < 4 || ':' != pattern[1] || !strchr(pattern + 2, ':')) { printf("Pattern \"%s\": Format invalid.\n", pattern); return False; } // Allocate memory for the new condition cond = malloc(sizeof(wincond)); // Determine the pattern target switch (pattern[0]) { case 'n': cond->target = CONDTGT_NAME; break; case 'i': cond->target = CONDTGT_CLASSI; break; case 'g': cond->target = CONDTGT_CLASSG; break; default: printf("Pattern \"%s\": Target \"%c\" invalid.\n", pattern, pattern[0]); free(cond); return False; } // Determine the pattern type switch (pattern[2]) { case 'e': cond->type = CONDTP_EXACT; break; case 'a': cond->type = CONDTP_ANYWHERE; break; case 's': cond->type = CONDTP_FROMSTART; break; case 'w': cond->type = CONDTP_WILDCARD; break; #ifdef CONFIG_REGEX_PCRE case 'p': cond->type = CONDTP_REGEX_PCRE; break; #endif default: printf("Pattern \"%s\": Type \"%c\" invalid.\n", pattern, pattern[2]); free(cond); return False; } // Determine the pattern flags pos = &pattern[3]; cond->flags = 0; while (':' != *pos) { switch (*pos) { case 'i': cond->flags |= CONDF_IGNORECASE; break; default: printf("Pattern \"%s\": Flag \"%c\" invalid.\n", pattern, *pos); break; } ++pos; } // Copy the pattern ++pos; cond->pattern = NULL; #ifdef CONFIG_REGEX_PCRE cond->regex_pcre = NULL; cond->regex_pcre_extra = NULL; #endif if (CONDTP_REGEX_PCRE == cond->type) { #ifdef CONFIG_REGEX_PCRE const char *error = NULL; int erroffset = 0; int options = 0; if (cond->flags & CONDF_IGNORECASE) options |= PCRE_CASELESS; cond->regex_pcre = pcre_compile(pos, options, &error, &erroffset, NULL); if (!cond->regex_pcre) { printf("Pattern \"%s\": PCRE regular expression parsing failed on " "offset %d: %s\n", pattern, erroffset, error); free(cond); return False; } #ifdef CONFIG_REGEX_PCRE_JIT cond->regex_pcre_extra = pcre_study(cond->regex_pcre, PCRE_STUDY_JIT_COMPILE, &error); if (!cond->regex_pcre_extra) { printf("Pattern \"%s\": PCRE regular expression study failed: %s", pattern, error); } #endif #endif } else { cond->pattern = mstrcpy(pos); } // Insert it into the linked list cond->next = *pcondlst; *pcondlst = cond; return True; } static long determine_evmask(Display *dpy, Window wid, win_evmode_t mode) { long evmask = NoEventMask; if (WIN_EVMODE_FRAME == mode || find_win(dpy, wid)) { evmask |= PropertyChangeMask; if (opts.track_focus) evmask |= FocusChangeMask; } if (WIN_EVMODE_CLIENT == mode || find_toplevel(dpy, wid)) { if (opts.frame_opacity || opts.track_wdata) evmask |= PropertyChangeMask; } return evmask; } static win * find_win(Display *dpy, Window id) { win *w; for (w = list; w; w = w->next) { if (w->id == id && !w->destroyed) return w; } return 0; } /** * Find out the WM frame of a client window using existing data. * * @param dpy display to use * @param w window ID * @return struct _win object of the found window, NULL if not found */ static win * find_toplevel(Display *dpy, Window id) { win *w; for (w = list; w; w = w->next) { if (w->client_win == id && !w->destroyed) return w; } return NULL; } /** * Find out the WM frame of a client window by querying X. * * @param dpy display to use * @param w window ID * @return struct _win object of the found window, NULL if not found */ static win * find_toplevel2(Display *dpy, Window wid) { win *w = NULL; // We traverse through its ancestors to find out the frame while (wid && wid != root && !(w = find_win(dpy, wid))) { Window troot; Window parent; Window *tchildren; unsigned tnchildren; // XQueryTree probably fails if you run compton when X is somehow // initializing (like add it in .xinitrc). In this case // just leave it alone. if (!XQueryTree(dpy, wid, &troot, &parent, &tchildren, &tnchildren)) { parent = 0; break; } if (tchildren) XFree(tchildren); wid = parent; } return w; } /** * Recheck currently focused window and set its w->focused * to True. * * @param dpy display to use * @return struct _win of currently focused window, NULL if not found */ static win * recheck_focus(Display *dpy) { // Determine the currently focused window so we can apply appropriate // opacity on it Window wid = 0; int revert_to; win *w = NULL; XGetInputFocus(dpy, &wid, &revert_to); // Fallback to the old method if find_toplevel() fails if (!(w = find_toplevel(dpy, wid))) { w = find_toplevel2(dpy, wid); } // And we set the focus state and opacity here if (w) { set_focused(dpy, w, True); return w; } return NULL; } static Picture root_tile_f(Display *dpy) { Picture picture; Atom actual_type; Pixmap pixmap; int actual_format; unsigned long nitems; unsigned long bytes_after; unsigned char *prop; Bool fill; XRenderPictureAttributes pa; int p; pixmap = None; for (p = 0; background_props[p]; p++) { prop = NULL; if (XGetWindowProperty(dpy, root, XInternAtom(dpy, background_props[p], False), 0, 4, False, AnyPropertyType, &actual_type, &actual_format, &nitems, &bytes_after, &prop ) == Success && actual_type == XInternAtom(dpy, "PIXMAP", False) && actual_format == 32 && nitems == 1) { memcpy(&pixmap, prop, 4); XFree(prop); fill = False; break; } else if (prop) XFree(prop); } if (!pixmap) { pixmap = XCreatePixmap(dpy, root, 1, 1, DefaultDepth(dpy, scr)); fill = True; } pa.repeat = True; picture = XRenderCreatePicture( dpy, pixmap, XRenderFindVisualFormat(dpy, DefaultVisual(dpy, scr)), CPRepeat, &pa); if (fill) { XRenderColor c; c.red = c.green = c.blue = 0x8080; c.alpha = 0xffff; XRenderFillRectangle( dpy, PictOpSrc, picture, &c, 0, 0, 1, 1); } return picture; } static void paint_root(Display *dpy) { if (!root_tile) { root_tile = root_tile_f(dpy); } XRenderComposite( dpy, PictOpSrc, root_tile, None, root_buffer, 0, 0, 0, 0, 0, 0, root_width, root_height); } /** * Get a rectangular region a window (and possibly its shadow) occupies. * * Note w->shadow and shadow geometry must be correct before calling this * function. */ static XserverRegion win_extents(Display *dpy, win *w) { XRectangle r; r.x = w->a.x; r.y = w->a.y; r.width = w->widthb; r.height = w->heightb; if (w->shadow) { XRectangle sr; sr.x = w->a.x + w->shadow_dx; sr.y = w->a.y + w->shadow_dy; sr.width = w->shadow_width; sr.height = w->shadow_height; if (sr.x < r.x) { r.width = (r.x + r.width) - sr.x; r.x = sr.x; } if (sr.y < r.y) { r.height = (r.y + r.height) - sr.y; r.y = sr.y; } if (sr.x + sr.width > r.x + r.width) { r.width = sr.x + sr.width - r.x; } if (sr.y + sr.height > r.y + r.height) { r.height = sr.y + sr.height - r.y; } } return XFixesCreateRegion(dpy, &r, 1); } static XserverRegion border_size(Display *dpy, win *w) { XserverRegion border; /* * if window doesn't exist anymore, this will generate an error * as well as not generate a region. Perhaps a better XFixes * architecture would be to have a request that copies instead * of creates, that way you'd just end up with an empty region * instead of an invalid XID. */ border = XFixesCreateRegionFromWindow( dpy, w->id, WindowRegionBounding); /* translate this */ XFixesTranslateRegion(dpy, border, w->a.x + w->a.border_width, w->a.y + w->a.border_width); return border; } static Window find_client_win(Display *dpy, Window w) { if (win_has_attr(dpy, w, client_atom)) { return w; } Window *children; unsigned int nchildren; unsigned int i; Window ret = 0; if (!win_get_children(dpy, w, &children, &nchildren)) { return 0; } for (i = 0; i < nchildren; ++i) { if ((ret = find_client_win(dpy, children[i]))) break; } XFree(children); return ret; } static void get_frame_extents(Display *dpy, win *w, Window client) { long *extents; Atom type; int format; unsigned long nitems, after; unsigned char *data = NULL; int result; w->left_width = 0; w->right_width = 0; w->top_width = 0; w->bottom_width = 0; result = XGetWindowProperty( dpy, client, frame_extents_atom, 0L, 4L, False, AnyPropertyType, &type, &format, &nitems, &after, &data); if (result == Success) { if (nitems == 4 && after == 0) { extents = (long *) data; w->left_width = extents[0]; w->right_width = extents[1]; w->top_width = extents[2]; w->bottom_width = extents[3]; } XFree(data); } } static win * paint_preprocess(Display *dpy, win *list) { win *w; win *t = NULL, *next = NULL; // Sounds like the timeout in poll() frequently does not work // accurately, asking it to wait to 20ms, and often it would wait for // 19ms, so the step value has to be rounded. unsigned steps = roundl((double) (get_time_in_milliseconds() - fade_time) / opts.fade_delta); // Reset fade_time fade_time = get_time_in_milliseconds(); for (w = list; w; w = next) { // In case calling the fade callback function destroys this window next = w->next; opacity_t opacity_old = w->opacity; #if CAN_DO_USABLE if (!w->usable) continue; #endif // Run fading run_fade(dpy, w, steps); // Give up if it's not damaged or invisible if (!w->damaged || w->a.x + w->a.width < 1 || w->a.y + w->a.height < 1 || w->a.x >= root_width || w->a.y >= root_height) { check_fade_fin(dpy, w); continue; } // If opacity changes if (w->opacity != opacity_old) { determine_mode(dpy, w); add_damage_win(dpy, w); } if (!w->opacity) { check_fade_fin(dpy, w); continue; } // Fetch the picture and pixmap if needed if (!w->picture) { XRenderPictureAttributes pa; XRenderPictFormat *format; Drawable draw = w->id; #if HAS_NAME_WINDOW_PIXMAP if (has_name_pixmap && !w->pixmap) { set_ignore(dpy, NextRequest(dpy)); w->pixmap = XCompositeNameWindowPixmap(dpy, w->id); } if (w->pixmap) draw = w->pixmap; #endif format = XRenderFindVisualFormat(dpy, w->a.visual); pa.subwindow_mode = IncludeInferiors; w->picture = XRenderCreatePicture( dpy, draw, format, CPSubwindowMode, &pa); } // Fetch bounding region and extents if needed if (!w->border_size) { w->border_size = border_size(dpy, w); } if (!w->extents) { w->extents = win_extents(dpy, w); // If w->extents does not exist, the previous add_damage_win() // call when opacity changes has no effect, so redo it here. if (w->opacity != opacity_old) add_damage_win(dpy, w); } // Rebuild alpha_pict only if necessary if (OPAQUE != w->opacity && (!w->alpha_pict || w->opacity != w->opacity_cur)) { free_picture(dpy, &w->alpha_pict); w->alpha_pict = solid_picture( dpy, False, get_opacity_percent(dpy, w), 0, 0, 0); w->opacity_cur = w->opacity; } // Calculate frame_opacity if (opts.frame_opacity && 1.0 != opts.frame_opacity && w->top_width) w->frame_opacity = get_opacity_percent(dpy, w) * opts.frame_opacity; else w->frame_opacity = 0.0; // Rebuild frame_alpha_pict only if necessary if (w->frame_opacity && (!w->frame_alpha_pict || w->frame_opacity != w->frame_opacity_cur)) { free_picture(dpy, &w->frame_alpha_pict); w->frame_alpha_pict = solid_picture( dpy, False, w->frame_opacity, 0, 0, 0); w->frame_opacity_cur = w->frame_opacity; } // Calculate shadow opacity if (w->frame_opacity) w->shadow_opacity = opts.shadow_opacity * w->frame_opacity; else w->shadow_opacity = opts.shadow_opacity * get_opacity_percent(dpy, w); // Rebuild shadow_pict if necessary if (w->flags & WFLAG_SIZE_CHANGE) free_picture(dpy, &w->shadow_pict); if (w->shadow && (!w->shadow_pict || w->shadow_opacity != w->shadow_opacity_cur)) { free_picture(dpy, &w->shadow_pict); w->shadow_pict = shadow_picture(dpy, w->shadow_opacity, w->widthb, w->heightb); w->shadow_opacity_cur = w->shadow_opacity; } // Reset flags w->flags = 0; w->prev_trans = t; t = w; } return t; } static void paint_all(Display *dpy, XserverRegion region, win *t) { win *w; if (!region) { region = get_screen_region(dpy); } #ifdef MONITOR_REPAINT root_buffer = root_picture; #else if (!root_buffer) { Pixmap root_pixmap = XCreatePixmap( dpy, root, root_width, root_height, DefaultDepth(dpy, scr)); root_buffer = XRenderCreatePicture(dpy, root_pixmap, XRenderFindVisualFormat(dpy, DefaultVisual(dpy, scr)), 0, 0); XFreePixmap(dpy, root_pixmap); } #endif XFixesSetPictureClipRegion(dpy, root_picture, 0, 0, region); #ifdef MONITOR_REPAINT XRenderComposite( dpy, PictOpSrc, black_picture, None, root_picture, 0, 0, 0, 0, 0, 0, root_width, root_height); #endif paint_root(dpy); #ifdef DEBUG_REPAINT printf("paint:"); #endif for (w = t; w; w = w->prev_trans) { int x, y, wid, hei; #if HAS_NAME_WINDOW_PIXMAP x = w->a.x; y = w->a.y; wid = w->widthb; hei = w->heightb; #else x = w->a.x + w->a.border_width; y = w->a.y + w->a.border_width; wid = w->a.width; hei = w->a.height; #endif #ifdef DEBUG_REPAINT printf(" %#010lx", w->id); #endif // Allow shadow to be painted anywhere in the damaged region XFixesSetPictureClipRegion(dpy, root_buffer, 0, 0, region); // Painting shadow if (w->shadow) { XRenderComposite( dpy, PictOpOver, cshadow_picture, w->shadow_pict, root_buffer, 0, 0, 0, 0, w->a.x + w->shadow_dx, w->a.y + w->shadow_dy, w->shadow_width, w->shadow_height); } // The window only could be painted in its bounding region XserverRegion paint_reg = XFixesCreateRegion(dpy, NULL, 0); XFixesIntersectRegion(dpy, paint_reg, region, w->border_size); XFixesSetPictureClipRegion(dpy, root_buffer, 0, 0, paint_reg); Picture alpha_mask = (OPAQUE == w->opacity ? None: w->alpha_pict); int op = (w->mode == WINDOW_SOLID ? PictOpSrc: PictOpOver); // Painting the window if (!w->frame_opacity) { XRenderComposite(dpy, op, w->picture, alpha_mask, root_buffer, 0, 0, 0, 0, x, y, wid, hei); } else { unsigned int t = w->top_width; unsigned int l = w->left_width; unsigned int b = w->bottom_width; unsigned int r = w->right_width; /* top */ XRenderComposite( dpy, PictOpOver, w->picture, w->frame_alpha_pict, root_buffer, 0, 0, 0, 0, x, y, wid, t); /* left */ XRenderComposite( dpy, PictOpOver, w->picture, w->frame_alpha_pict, root_buffer, 0, t, 0, t, x, y + t, l, hei - t); /* bottom */ XRenderComposite( dpy, PictOpOver, w->picture, w->frame_alpha_pict, root_buffer, l, hei - b, l, hei - b, x + l, y + hei - b, wid - l - r, b); /* right */ XRenderComposite( dpy, PictOpOver, w->picture, w->frame_alpha_pict, root_buffer, wid - r, t, wid - r, t, x + wid - r, y + t, r, hei - t); /* body */ XRenderComposite( dpy, op, w->picture, alpha_mask, root_buffer, l, t, l, t, x + l, y + t, wid - l - r, hei - t - b); } // Dimming the window if needed if (w->dim) { XRenderComposite(dpy, PictOpOver, dim_picture, None, root_buffer, 0, 0, 0, 0, x, y, wid, hei); } XFixesDestroyRegion(dpy, paint_reg); check_fade_fin(dpy, w); } #ifdef DEBUG_REPAINT printf("\n"); fflush(stdout); #endif XFixesDestroyRegion(dpy, region); if (root_buffer != root_picture) { XFixesSetPictureClipRegion(dpy, root_buffer, 0, 0, None); XRenderComposite( dpy, PictOpSrc, root_buffer, None, root_picture, 0, 0, 0, 0, 0, 0, root_width, root_height); } } static void add_damage(Display *dpy, XserverRegion damage) { if (all_damage) { XFixesUnionRegion(dpy, all_damage, all_damage, damage); XFixesDestroyRegion(dpy, damage); } else { all_damage = damage; } } static void repair_win(Display *dpy, win *w) { XserverRegion parts; if (!w->damaged) { parts = win_extents(dpy, w); set_ignore(dpy, NextRequest(dpy)); XDamageSubtract(dpy, w->damage, None, None); } else { parts = XFixesCreateRegion(dpy, 0, 0); set_ignore(dpy, NextRequest(dpy)); XDamageSubtract(dpy, w->damage, None, parts); XFixesTranslateRegion(dpy, parts, w->a.x + w->a.border_width, w->a.y + w->a.border_width); } add_damage(dpy, parts); w->damaged = 1; } static wintype get_wintype_prop(Display *dpy, Window wid) { Atom actual; int format; unsigned long n = 0, left, i; long *data = NULL; int j; set_ignore(dpy, NextRequest(dpy)); if (Success != XGetWindowProperty( dpy, wid, win_type_atom, 0L, 32L, False, XA_ATOM, &actual, &format, &n, &left, (unsigned char **) &data) || !data || !n) { if (data) XFree(data); return WINTYPE_UNKNOWN; } for (i = 0; i < n; ++i) { for (j = 1; j < NUM_WINTYPES; ++j) { if (win_type[j] == (Atom) data[i]) { XFree(data); return j; } } } XFree(data); return WINTYPE_UNKNOWN; } static wintype determine_wintype(Display *dpy, Window w) { Window *children = NULL; unsigned int nchildren, i; wintype type; type = get_wintype_prop(dpy, w); if (type != WINTYPE_UNKNOWN) return type; if (!win_get_children(dpy, w, &children, &nchildren)) return WINTYPE_UNKNOWN; for (i = 0; i < nchildren; i++) { type = determine_wintype(dpy, children[i]); if (type != WINTYPE_UNKNOWN) return type; } if (children) { XFree((void *)children); } return WINTYPE_UNKNOWN; } static void map_win(Display *dpy, Window id, unsigned long sequence, Bool fade, Bool override_redirect) { win *w = find_win(dpy, id); if (!w) return; w->focused = False; w->a.map_state = IsViewable; // Call XSelectInput() before reading properties so that no property // changes are lost XSelectInput(dpy, id, determine_evmask(dpy, id, WIN_EVMODE_FRAME)); // Notify compton when the shape of a window changes if (shape_exists) { XShapeSelectInput(dpy, id, ShapeNotifyMask); } // Detect client window here instead of in add_win() as the client // window should have been prepared at this point if (!w->client_win) { Window cw = find_client_win(dpy, w->id); #ifdef DEBUG_CLIENTWIN printf("find_client_win(%#010lx): client %#010lx\n", w->id, cw); #endif if (cw) { mark_client_win(dpy, w, cw); } } else if (opts.frame_opacity) { // Refetch frame extents just in case it changes when the window is // unmapped get_frame_extents(dpy, w, w->client_win); } if (WINTYPE_UNKNOWN == w->window_type) w->window_type = determine_wintype(dpy, w->id); #ifdef DEBUG_WINTYPE printf("map_win(%#010lx): type %s\n", w->id, WINTYPES[w->window_type]); #endif // Get window name and class if we are tracking them if (opts.track_wdata) { win_get_name(dpy, w); win_get_class(dpy, w); } /* * Occasionally compton does not seem able to get a FocusIn event from a * window just mapped. I suspect it's a timing issue again when the * XSelectInput() is called too late. We have to recheck the focused * window here. */ if (opts.track_focus) { recheck_focus(dpy); // Consider a window without client window a WM window and mark it // focused if mark_wmwin_focused is on if (opts.mark_wmwin_focused && !w->client_win) w->focused = True; } // Window type change could affect shadow and fade determine_shadow(dpy, w); determine_fade(dpy, w); // Determine mode here just in case the colormap changes determine_mode(dpy, w); // Fading in calc_opacity(dpy, w, True); set_fade_callback(dpy, w, NULL, True); calc_dim(dpy, w); #if CAN_DO_USABLE w->damage_bounds.x = w->damage_bounds.y = 0; w->damage_bounds.width = w->damage_bounds.height = 0; #endif w->damaged = 1; /* if any configure events happened while the window was unmapped, then configure the window to its correct place */ if (w->need_configure) { configure_win(dpy, &w->queue_configure); } } static void finish_unmap_win(Display *dpy, win *w) { w->damaged = 0; #if CAN_DO_USABLE w->usable = False; #endif if (w->extents != None) { /* destroys region */ add_damage(dpy, w->extents); w->extents = None; } #if HAS_NAME_WINDOW_PIXMAP free_pixmap(dpy, &w->pixmap); #endif free_picture(dpy, &w->picture); free_region(dpy, &w->border_size); free_picture(dpy, &w->shadow_pict); } static void unmap_callback(Display *dpy, win *w) { finish_unmap_win(dpy, w); } static void unmap_win(Display *dpy, Window id, Bool fade) { win *w = find_win(dpy, id); if (!w) return; w->a.map_state = IsUnmapped; // Fading out w->opacity_tgt = 0; set_fade_callback(dpy, w, unmap_callback, False); // don't care about properties anymore // Will get BadWindow if the window is destroyed set_ignore(dpy, NextRequest(dpy)); XSelectInput(dpy, w->id, 0); if (w->client_win) { set_ignore(dpy, NextRequest(dpy)); XSelectInput(dpy, w->client_win, 0); } } static opacity_t get_opacity_prop(Display *dpy, win *w, opacity_t def) { Atom actual; int format; unsigned long n, left; unsigned char *data; int result = XGetWindowProperty( dpy, w->id, opacity_atom, 0L, 1L, False, XA_CARDINAL, &actual, &format, &n, &left, &data); if (result == Success && data != NULL) { opacity_t i = *((opacity_t *) data); XFree(data); return i; } return def; } static double get_opacity_percent(Display *dpy, win *w) { return ((double) w->opacity) / OPAQUE; } static void determine_mode(Display *dpy, win *w) { int mode; XRenderPictFormat *format; /* if trans prop == -1 fall back on previous tests */ if (w->a.class == InputOnly) { format = 0; } else { format = XRenderFindVisualFormat(dpy, w->a.visual); } if (format && format->type == PictTypeDirect && format->direct.alphaMask) { mode = WINDOW_ARGB; } else if (w->opacity != OPAQUE) { mode = WINDOW_TRANS; } else { mode = WINDOW_SOLID; } w->mode = mode; } /** * Calculate and set the opacity of a window. * * If window is inactive and inactive_opacity_override is set, the * priority is: (Simulates the old behavior) * * inactive_opacity > _NET_WM_WINDOW_OPACITY (if not opaque) * > window type default opacity * * Otherwise: * * _NET_WM_WINDOW_OPACITY (if not opaque) * > window type default opacity (if not opaque) * > inactive_opacity * * @param dpy X display to use * @param w struct _win object representing the window * @param refetch_prop whether _NET_WM_OPACITY of the window needs to be * refetched */ static void calc_opacity(Display *dpy, win *w, Bool refetch_prop) { opacity_t opacity; // Do nothing for unmapped window, calc_opacity() will be called // when it's mapped // I suppose I need not to check for IsUnviewable here? if (IsViewable != w->a.map_state) return; // Do not refetch the opacity window attribute unless necessary, this // is probably an expensive operation in some cases if (refetch_prop) { w->opacity_prop = get_opacity_prop(dpy, w, OPAQUE); } if (OPAQUE == (opacity = w->opacity_prop)) { if (1.0 != opts.wintype_opacity[w->window_type]) { opacity = opts.wintype_opacity[w->window_type] * OPAQUE; } } // Respect inactive_opacity in some cases if (opts.inactive_opacity && is_normal_win(w) && False == w->focused && (OPAQUE == opacity || opts.inactive_opacity_override)) { opacity = opts.inactive_opacity; } w->opacity_tgt = opacity; } static void calc_dim(Display *dpy, win *w) { Bool dim; if (opts.inactive_dim && is_normal_win(w) && !(w->focused)) { dim = True; } else { dim = False; } if (dim != w->dim) { w->dim = dim; add_damage_win(dpy, w); } } /** * Determine if a window should fade on opacity change. */ static void determine_fade(Display *dpy, win *w) { w->fade = opts.wintype_fade[w->window_type]; } /** * Determine if a window should have shadow, and update things depending * on shadow state. */ static void determine_shadow(Display *dpy, win *w) { Bool shadow_old = w->shadow; w->shadow = (opts.wintype_shadow[w->window_type] && !win_match(w, opts.shadow_blacklist, &w->cache_sblst)); // Window extents need update on shadow state change if (w->shadow != shadow_old) { // Shadow geometry currently doesn't change on shadow state change // calc_shadow_geometry(dpy, w); if (w->extents) { // Mark the old extents as damaged if the shadow is removed if (!w->shadow) add_damage(dpy, w->extents); else free_region(dpy, &w->extents); w->extents = win_extents(dpy, w); // Mark the new extents as damaged if the shadow is added if (w->shadow) add_damage_win(dpy, w); } } } /** * Update cache data in struct _win that depends on window size. */ static void calc_win_size(Display *dpy, win *w) { w->widthb = w->a.width + w->a.border_width * 2; w->heightb = w->a.height + w->a.border_width * 2; calc_shadow_geometry(dpy, w); w->flags |= WFLAG_SIZE_CHANGE; } /** * Calculate and update geometry of the shadow of a window. */ static void calc_shadow_geometry(Display *dpy, win *w) { w->shadow_dx = opts.shadow_offset_x; w->shadow_dy = opts.shadow_offset_y; w->shadow_width = w->widthb + gaussian_map->size; w->shadow_height = w->heightb + gaussian_map->size; } /** * Mark a window as the client window of another. * * @param dpy display to use * @param w struct _win of the parent window * @param client window ID of the client window */ static void mark_client_win(Display *dpy, win *w, Window client) { w->client_win = client; // Get the frame width and monitor further frame width changes on client // window if necessary if (opts.frame_opacity) { get_frame_extents(dpy, w, client); } XSelectInput(dpy, client, determine_evmask(dpy, client, WIN_EVMODE_CLIENT)); if (WINTYPE_UNKNOWN == w->window_type) w->window_type = get_wintype_prop(dpy, w->client_win); } static void add_win(Display *dpy, Window id, Window prev, Bool override_redirect) { if (find_win(dpy, id)) { return; } win *new = malloc(sizeof(win)); win **p; if (!new) return; if (prev) { for (p = &list; *p; p = &(*p)->next) { if ((*p)->id == prev && !(*p)->destroyed) break; } } else { p = &list; } new->id = id; set_ignore(dpy, NextRequest(dpy)); if (!XGetWindowAttributes(dpy, id, &new->a)) { free(new); return; } new->damaged = 0; #if CAN_DO_USABLE new->usable = False; #endif #if HAS_NAME_WINDOW_PIXMAP new->pixmap = None; #endif new->picture = None; if (new->a.class == InputOnly) { new->damage_sequence = 0; new->damage = None; } else { new->damage_sequence = NextRequest(dpy); set_ignore(dpy, NextRequest(dpy)); new->damage = XDamageCreate(dpy, id, XDamageReportNonEmpty); } new->name = NULL; new->class_instance = NULL; new->class_general = NULL; new->cache_sblst = NULL; new->cache_fblst = NULL; new->border_size = None; new->extents = None; new->shadow = False; new->shadow_opacity = 0.0; new->shadow_opacity_cur = 0.0; new->shadow_pict = None; new->shadow_dx = 0; new->shadow_dy = 0; new->shadow_width = 0; new->shadow_height = 0; new->opacity = 0; new->opacity_tgt = 0; new->opacity_cur = OPAQUE; new->opacity_prop = OPAQUE; new->fade = False; new->fade_callback = NULL; new->fade_fin = False; new->alpha_pict = None; new->frame_opacity = 1.0; new->frame_opacity_cur = 1.0; new->frame_alpha_pict = None; new->dim = False; new->focused = False; new->destroyed = False; new->need_configure = False; new->window_type = WINTYPE_UNKNOWN; new->prev_trans = 0; new->left_width = 0; new->right_width = 0; new->top_width = 0; new->bottom_width = 0; new->client_win = 0; new->flags = 0; calc_win_size(dpy, new); new->next = *p; *p = new; if (new->a.map_state == IsViewable) { map_win(dpy, id, new->damage_sequence - 1, True, override_redirect); } } static void restack_win(Display *dpy, win *w, Window new_above) { Window old_above; if (w->next) { old_above = w->next->id; } else { old_above = None; } if (old_above != new_above) { win **prev; /* unhook */ for (prev = &list; *prev; prev = &(*prev)->next) { if ((*prev) == w) break; } *prev = w->next; /* rehook */ for (prev = &list; *prev; prev = &(*prev)->next) { if ((*prev)->id == new_above && !(*prev)->destroyed) break; } w->next = *prev; *prev = w; #ifdef DEBUG_RESTACK { const char *desc; char *window_name; Bool to_free; win* c = list; printf("restack_win(%#010lx, %#010lx): " "Window stack modified. Current stack:\n", w->id, new_above); for (; c; c = c->next) { window_name = "(Failed to get title)"; if (root == c->id) { window_name = "(Root window)"; } else { to_free = wid_get_name(dpy, c->id, &window_name); } desc = ""; if (c->destroyed) desc = "(D) "; printf("%#010lx \"%s\" %s-> ", c->id, window_name, desc); if (to_free) { XFree(window_name); window_name = NULL; } } fputs("\n", stdout); } #endif } } static void configure_win(Display *dpy, XConfigureEvent *ce) { win *w = find_win(dpy, ce->window); XserverRegion damage = None; if (!w) { if (ce->window == root) { if (root_buffer) { XRenderFreePicture(dpy, root_buffer); root_buffer = None; } root_width = ce->width; root_height = ce->height; } return; } if (w->a.map_state == IsUnmapped) { /* save the configure event for when the window maps */ w->need_configure = True; w->queue_configure = *ce; restack_win(dpy, w, ce->above); } else { if (!(w->need_configure)) { restack_win(dpy, w, ce->above); } w->need_configure = False; #if CAN_DO_USABLE if (w->usable) #endif { damage = XFixesCreateRegion(dpy, 0, 0); if (w->extents != None) { XFixesCopyRegion(dpy, damage, w->extents); } } w->a.x = ce->x; w->a.y = ce->y; if (w->a.width != ce->width || w->a.height != ce->height) { #if HAS_NAME_WINDOW_PIXMAP free_pixmap(dpy, &w->pixmap); free_picture(dpy, &w->picture); #endif } if (w->a.width != ce->width || w->a.height != ce->height || w->a.border_width != ce->border_width) { w->a.width = ce->width; w->a.height = ce->height; w->a.border_width = ce->border_width; calc_win_size(dpy, w); } if (w->a.map_state != IsUnmapped && damage) { XserverRegion extents = win_extents(dpy, w); XFixesUnionRegion(dpy, damage, damage, extents); XFixesDestroyRegion(dpy, extents); add_damage(dpy, damage); } // Window extents and border_size may have changed free_region(dpy, &w->extents); free_region(dpy, &w->border_size); } w->a.override_redirect = ce->override_redirect; } static void circulate_win(Display *dpy, XCirculateEvent *ce) { win *w = find_win(dpy, ce->window); Window new_above; if (!w) return; if (ce->place == PlaceOnTop) { new_above = list->id; } else { new_above = None; } restack_win(dpy, w, new_above); } static void finish_destroy_win(Display *dpy, Window id) { win **prev, *w; for (prev = &list; (w = *prev); prev = &w->next) { if (w->id == id && w->destroyed) { finish_unmap_win(dpy, w); *prev = w->next; free_picture(dpy, &w->alpha_pict); free_picture(dpy, &w->frame_alpha_pict); free_picture(dpy, &w->shadow_pict); free_damage(dpy, &w->damage); free(w->name); free(w->class_instance); free(w->class_general); free(w); break; } } } #if HAS_NAME_WINDOW_PIXMAP static void destroy_callback(Display *dpy, win *w) { finish_destroy_win(dpy, w->id); } #endif static void destroy_win(Display *dpy, Window id, Bool fade) { win *w = find_win(dpy, id); if (w) { w->destroyed = True; // Fading out the window w->opacity_tgt = 0; set_fade_callback(dpy, w, destroy_callback, False); } } static void damage_win(Display *dpy, XDamageNotifyEvent *de) { win *w = find_win(dpy, de->drawable); if (!w) return; #if CAN_DO_USABLE if (!w->usable) { if (w->damage_bounds.width == 0 || w->damage_bounds.height == 0) { w->damage_bounds = de->area; } else { if (de->area.x < w->damage_bounds.x) { w->damage_bounds.width += (w->damage_bounds.x - de->area.x); w->damage_bounds.x = de->area.x; } if (de->area.y < w->damage_bounds.y) { w->damage_bounds.height += (w->damage_bounds.y - de->area.y); w->damage_bounds.y = de->area.y; } if (de->area.x + de->area.width > w->damage_bounds.x + w->damage_bounds.width) { w->damage_bounds.width = de->area.x + de->area.width - w->damage_bounds.x; } if (de->area.y + de->area.height > w->damage_bounds.y + w->damage_bounds.height) { w->damage_bounds.height = de->area.y + de->area.height - w->damage_bounds.y; } } if (w->damage_bounds.x <= 0 && w->damage_bounds.y <= 0 && w->a.width <= w->damage_bounds.x + w->damage_bounds.width && w->a.height <= w->damage_bounds.y + w->damage_bounds.height) { if (opts.wintype_fade[w->window_type]) { set_fade(dpy, w, 0, get_opacity_percent(dpy, w), opts.fade_in_step, 0, True, True); } w->usable = True; } } if (w->usable) #endif repair_win(dpy, w); } static int error(Display *dpy, XErrorEvent *ev) { int o; const char *name = "Unknown"; if (should_ignore(dpy, ev->serial)) { return 0; } if (ev->request_code == composite_opcode && ev->minor_code == X_CompositeRedirectSubwindows) { fprintf(stderr, "Another composite manager is already running\n"); exit(1); } o = ev->error_code - xfixes_error; switch (o) { case BadRegion: name = "BadRegion"; break; default: break; } o = ev->error_code - damage_error; switch (o) { case BadDamage: name = "BadDamage"; break; default: break; } o = ev->error_code - render_error; switch (o) { case BadPictFormat: name = "BadPictFormat"; break; case BadPicture: name = "BadPicture"; break; case BadPictOp: name = "BadPictOp"; break; case BadGlyphSet: name = "BadGlyphSet"; break; case BadGlyph: name = "BadGlyph"; break; default: break; } switch (ev->error_code) { case BadAccess: name = "BadAccess"; break; case BadAlloc: name = "BadAlloc"; break; case BadAtom: name = "BadAtom"; break; case BadColor: name = "BadColor"; break; case BadCursor: name = "BadCursor"; break; case BadDrawable: name = "BadDrawable"; break; case BadFont: name = "BadFont"; break; case BadGC: name = "BadGC"; break; case BadIDChoice: name = "BadIDChoice"; break; case BadImplementation: name = "BadImplementation"; break; case BadLength: name = "BadLength"; break; case BadMatch: name = "BadMatch"; break; case BadName: name = "BadName"; break; case BadPixmap: name = "BadPixmap"; break; case BadRequest: name = "BadRequest"; break; case BadValue: name = "BadValue"; break; case BadWindow: name = "BadWindow"; break; } print_timestamp(); printf("error %d (%s) request %d minor %d serial %lu\n", ev->error_code, name, ev->request_code, ev->minor_code, ev->serial); return 0; } static void expose_root(Display *dpy, Window root, XRectangle *rects, int nrects) { XserverRegion region = XFixesCreateRegion(dpy, rects, nrects); add_damage(dpy, region); } static Bool wid_get_text_prop(Display *dpy, Window wid, Atom prop, char ***pstrlst, int *pnstr) { XTextProperty text_prop; if (!(XGetTextProperty(dpy, wid, &text_prop, prop) && text_prop.value)) return False; if (Success != XmbTextPropertyToTextList(dpy, &text_prop, pstrlst, pnstr) || !*pnstr) { *pnstr = 0; if (*pstrlst) XFreeStringList(*pstrlst); return False; } return True; } static Bool wid_get_name(Display *dpy, Window wid, char **name) { XTextProperty text_prop; char **strlst = NULL; int nstr = 0; // set_ignore(dpy, NextRequest(dpy)); if (!(XGetTextProperty(dpy, wid, &text_prop, name_ewmh_atom) && text_prop.value)) { // set_ignore(dpy, NextRequest(dpy)); #ifdef DEBUG_WINDATA printf("wid_get_name(%#010lx): _NET_WM_NAME unset, falling back to WM_NAME.\n", wid); #endif if (!(XGetWMName(dpy, wid, &text_prop) && text_prop.value)) { return False; } } if (Success != XmbTextPropertyToTextList(dpy, &text_prop, &strlst, &nstr) || !nstr || !strlst) { if (strlst) XFreeStringList(strlst); return False; } *name = mstrcpy(strlst[0]); XFreeStringList(strlst); return True; } static int win_get_name(Display *dpy, win *w) { Bool ret; char *name_old = w->name; // Can't do anything if there's no client window if (!w->client_win) return False; // Get the name ret = wid_get_name(dpy, w->client_win, &w->name); // Return -1 if wid_get_name() failed, 0 if name didn't change, 1 if // it changes if (!ret) ret = -1; else if (name_old && !strcmp(w->name, name_old)) ret = 0; else ret = 1; // Keep the old name if there's no new one if (w->name != name_old) free(name_old); #ifdef DEBUG_WINDATA printf("win_get_name(%#010lx): client = %#010lx, name = \"%s\", " "ret = %d\n", w->id, w->client_win, w->name, ret); #endif return ret; } static Bool win_get_class(Display *dpy, win *w) { char **strlst = NULL; int nstr = 0; // Can't do anything if there's no client window if (!w->client_win) return False; // Free and reset old strings free(w->class_instance); free(w->class_general); w->class_instance = NULL; w->class_general = NULL; // Retrieve the property string list if (!wid_get_text_prop(dpy, w->client_win, class_atom, &strlst, &nstr)) return False; // Copy the strings if successful w->class_instance = mstrcpy(strlst[0]); if (nstr > 1) w->class_general = mstrcpy(strlst[1]); XFreeStringList(strlst); #ifdef DEBUG_WINDATA printf("win_get_class(%#010lx): client = %#010lx, " "instance = \"%s\", general = \"%s\"\n", w->id, w->client_win, w->class_instance, w->class_general); #endif return True; } #ifdef DEBUG_EVENTS static int ev_serial(XEvent *ev) { if ((ev->type & 0x7f) != KeymapNotify) { return ev->xany.serial; } return NextRequest(ev->xany.display); } static char * ev_name(XEvent *ev) { static char buf[128]; switch (ev->type & 0x7f) { case FocusIn: return "FocusIn"; case FocusOut: return "FocusOut"; case CreateNotify: return "CreateNotify"; case ConfigureNotify: return "ConfigureNotify"; case DestroyNotify: return "DestroyNotify"; case MapNotify: return "Map"; case UnmapNotify: return "Unmap"; case ReparentNotify: return "Reparent"; case CirculateNotify: return "Circulate"; case Expose: return "Expose"; case PropertyNotify: return "PropertyNotify"; case ClientMessage: return "ClientMessage"; default: if (ev->type == damage_event + XDamageNotify) { return "Damage"; } if (shape_exists && ev->type == shape_event) { return "ShapeNotify"; } sprintf(buf, "Event %d", ev->type); return buf; } } static Window ev_window(XEvent *ev) { switch (ev->type) { case FocusIn: case FocusOut: return ev->xfocus.window; case CreateNotify: return ev->xcreatewindow.window; case ConfigureNotify: return ev->xconfigure.window; case DestroyNotify: return ev->xdestroywindow.window; case MapNotify: return ev->xmap.window; case UnmapNotify: return ev->xunmap.window; case ReparentNotify: return ev->xreparent.window; case CirculateNotify: return ev->xcirculate.window; case Expose: return ev->xexpose.window; case PropertyNotify: return ev->xproperty.window; case ClientMessage: return ev->xclient.window; default: if (ev->type == damage_event + XDamageNotify) { return ((XDamageNotifyEvent *)ev)->drawable; } if (shape_exists && ev->type == shape_event) { return ((XShapeEvent *) ev)->window; } return 0; } } #endif /** * Events */ inline static void ev_focus_in(XFocusChangeEvent *ev) { win *w = find_win(dpy, ev->window); // To deal with events sent from windows just destroyed if (!w) return; set_focused(dpy, w, True); } inline static void ev_focus_out(XFocusChangeEvent *ev) { if (ev->mode == NotifyGrab || (ev->mode == NotifyNormal && (ev->detail == NotifyNonlinear || ev->detail == NotifyNonlinearVirtual))) { ; } else { return; } win *w = find_win(dpy, ev->window); // To deal with events sent from windows just destroyed if (!w) return; set_focused(dpy, w, False); } inline static void ev_create_notify(XCreateWindowEvent *ev) { add_win(dpy, ev->window, 0, ev->override_redirect); } inline static void ev_configure_notify(XConfigureEvent *ev) { #ifdef DEBUG_EVENTS printf("{ send_event: %d, " " above: %#010lx, " " override_redirect: %d }\n", ev->send_event, ev->above, ev->override_redirect); #endif configure_win(dpy, ev); } inline static void ev_destroy_notify(XDestroyWindowEvent *ev) { destroy_win(dpy, ev->window, True); } inline static void ev_map_notify(XMapEvent *ev) { map_win(dpy, ev->window, ev->serial, True, ev->override_redirect); } inline static void ev_unmap_notify(XUnmapEvent *ev) { unmap_win(dpy, ev->window, True); } inline static void ev_reparent_notify(XReparentEvent *ev) { if (ev->parent == root) { add_win(dpy, ev->window, 0, ev->override_redirect); } else { destroy_win(dpy, ev->window, True); // Reset event mask in case something wrong happens XSelectInput(dpy, ev->window, determine_evmask(dpy, ev->window, WIN_EVMODE_UNKNOWN)); /* // Check if the window is a client window of another win *w_top = find_toplevel2(dpy, ev->window); if (w_top && !(w_top->client_win)) { mark_client_win(dpy, w_top, ev->window); } */ } } inline static void ev_circulate_notify(XCirculateEvent *ev) { circulate_win(dpy, ev); } inline static void ev_expose(XExposeEvent *ev) { if (ev->window == root) { int more = ev->count + 1; if (n_expose == size_expose) { if (expose_rects) { expose_rects = realloc(expose_rects, (size_expose + more) * sizeof(XRectangle)); size_expose += more; } else { expose_rects = malloc(more * sizeof(XRectangle)); size_expose = more; } } expose_rects[n_expose].x = ev->x; expose_rects[n_expose].y = ev->y; expose_rects[n_expose].width = ev->width; expose_rects[n_expose].height = ev->height; n_expose++; if (ev->count == 0) { expose_root(dpy, root, expose_rects, n_expose); n_expose = 0; } } } inline static void ev_property_notify(XPropertyEvent *ev) { int p; for (p = 0; background_props[p]; p++) { if (ev->atom == XInternAtom(dpy, background_props[p], False)) { if (root_tile) { XClearArea(dpy, root, 0, 0, 0, 0, True); XRenderFreePicture(dpy, root_tile); root_tile = None; break; } } } /* check if Trans property was changed */ if (ev->atom == opacity_atom) { /* reset mode and redraw window */ win *w = find_win(dpy, ev->window); if (w) { calc_opacity(dpy, w, True); } } // If frame extents property changes if (opts.frame_opacity && ev->atom == extents_atom) { win *w = find_toplevel(dpy, ev->window); if (w) { get_frame_extents(dpy, w, ev->window); // If frame extents change, the window needs repaint add_damage_win(dpy, w); } } // If name changes if (opts.track_wdata && (name_atom == ev->atom || name_ewmh_atom == ev->atom)) { win *w = find_toplevel(dpy, ev->window); if (w && 1 == win_get_name(dpy, w)) determine_shadow(dpy, w); } // If class changes if (opts.track_wdata && class_atom == ev->atom) { win *w = find_toplevel(dpy, ev->window); if (w) { win_get_class(dpy, w); determine_shadow(dpy, w); } } } inline static void ev_damage_notify(XDamageNotifyEvent *ev) { damage_win(dpy, ev); } inline static void ev_shape_notify(XShapeEvent *ev) { win *w = find_win(dpy, ev->window); if (!w) return; /* * Empty border_size may indicated an * unmapped/destroyed window, in which case * seemingly BadRegion errors would be triggered * if we attempt to rebuild border_size */ if (w->border_size) { // Mark the old border_size as damaged add_damage(dpy, w->border_size); w->border_size = border_size(dpy, w); // Mark the new border_size as damaged add_damage(dpy, copy_region(dpy, w->border_size)); } } inline static void ev_handle(XEvent *ev) { if ((ev->type & 0x7f) != KeymapNotify) { discard_ignore(dpy, ev->xany.serial); } #ifdef DEBUG_EVENTS if (ev->type != damage_event + XDamageNotify) { Window w; char *window_name; Bool to_free = False; w = ev_window(ev); window_name = "(Failed to get title)"; if (w) { if (root == w) { window_name = "(Root window)"; } else { to_free = (Bool) wid_get_name(dpy, w, &window_name); } } print_timestamp(); printf("event %10.10s serial %#010x window %#010lx \"%s\"\n", ev_name(ev), ev_serial(ev), w, window_name); if (to_free) { XFree(window_name); window_name = NULL; } } #endif switch (ev->type) { case FocusIn: ev_focus_in((XFocusChangeEvent *)ev); break; case FocusOut: ev_focus_out((XFocusChangeEvent *)ev); break; case CreateNotify: ev_create_notify((XCreateWindowEvent *)ev); break; case ConfigureNotify: ev_configure_notify((XConfigureEvent *)ev); break; case DestroyNotify: ev_destroy_notify((XDestroyWindowEvent *)ev); break; case MapNotify: ev_map_notify((XMapEvent *)ev); break; case UnmapNotify: ev_unmap_notify((XUnmapEvent *)ev); break; case ReparentNotify: ev_reparent_notify((XReparentEvent *)ev); break; case CirculateNotify: ev_circulate_notify((XCirculateEvent *)ev); break; case Expose: ev_expose((XExposeEvent *)ev); break; case PropertyNotify: ev_property_notify((XPropertyEvent *)ev); break; default: if (shape_exists && ev->type == shape_event) { ev_shape_notify((XShapeEvent *) ev); break; } if (ev->type == damage_event + XDamageNotify) { ev_damage_notify((XDamageNotifyEvent *)ev); } break; } } /** * Main */ static void usage(void) { fprintf(stderr, "compton (development version)\n"); fprintf(stderr, "usage: compton [options]\n"); fprintf(stderr, "Options:\n" "\n" "-d display\n" " Which display should be managed.\n" "-r radius\n" " The blur radius for shadows. (default 12)\n" "-o opacity\n" " The translucency for shadows. (default .75)\n" "-l left-offset\n" " The left offset for shadows. (default -15)\n" "-t top-offset\n" " The top offset for shadows. (default -15)\n" "-I fade-in-step\n" " Opacity change between steps while fading in. (default 0.028)\n" "-O fade-out-step\n" " Opacity change between steps while fading out. (default 0.03)\n" "-D fade-delta-time\n" " The time between steps in a fade in milliseconds. (default 10)\n" "-m opacity\n" " The opacity for menus. (default 1.0)\n" "-c\n" " Enabled client-side shadows on windows.\n" "-C\n" " Avoid drawing shadows on dock/panel windows.\n" "-z\n" " Zero the part of the shadow's mask behind the window (experimental).\n" "-f\n" " Fade windows in/out when opening/closing.\n" "-F\n" " Fade windows during opacity changes.\n" "-i opacity\n" " Opacity of inactive windows. (0.1 - 1.0)\n" "-e opacity\n" " Opacity of window titlebars and borders. (0.1 - 1.0)\n" "-G\n" " Don't draw shadows on DND windows\n" "-b daemonize\n" " Daemonize process.\n" "-S\n" " Enable synchronous operation (for debugging).\n" "--config path\n" " Look for configuration file at the path.\n" "--shadow-red value\n" " Red color value of shadow (0.0 - 1.0, defaults to 0).\n" "--shadow-green value\n" " Green color value of shadow (0.0 - 1.0, defaults to 0).\n" "--shadow-blue value\n" " Blue color value of shadow (0.0 - 1.0, defaults to 0).\n" "--inactive-opacity-override\n" " Inactive opacity set by -i overrides value of _NET_WM_OPACITY.\n" "--inactive-dim value\n" " Dim inactive windows. (0.0 - 1.0, defaults to 0)\n" "--mark-wmwin-focused\n" " Try to detect WM windows and mark them as active.\n" "--shadow-exclude condition\n" " Exclude conditions for shadows.\n" "\n" "Format of a condition:\n" "\n" " condition = :[]:\n" "\n" " is one of \"n\" (window name), \"i\" (window class\n" " instance), and \"g\" (window general class)\n" "\n" " is one of \"e\" (exact match), \"a\" (match anywhere),\n" " \"s\" (match from start), \"w\" (wildcard), and \"p\" (PCRE\n" " regular expressions, if compiled with the support).\n" "\n" " could be a series of flags. Currently the only defined\n" " flag is \"i\" (ignore case).\n" "\n" " is the actual pattern string.\n" ); exit(1); } static void register_cm(int scr) { Window w; Atom a; char *buf; int len, s; if (scr < 0) return; w = XCreateSimpleWindow( dpy, RootWindow(dpy, 0), 0, 0, 1, 1, 0, None, None); Xutf8SetWMProperties( dpy, w, "xcompmgr", "xcompmgr", NULL, 0, NULL, NULL, NULL); len = strlen(REGISTER_PROP) + 2; s = scr; while (s >= 10) { ++len; s /= 10; } buf = malloc(len); snprintf(buf, len, REGISTER_PROP"%d", scr); a = XInternAtom(dpy, buf, False); free(buf); XSetSelectionOwner(dpy, a, w, 0); } static void fork_after(void) { if (getppid() == 1) return; int pid = fork(); if (pid == -1) { fprintf(stderr, "Fork failed\n"); return; } if (pid > 0) _exit(0); setsid(); freopen("/dev/null", "r", stdin); freopen("/dev/null", "w", stdout); freopen("/dev/null", "w", stderr); } #ifdef CONFIG_LIBCONFIG /** * Get a file stream of the configuration file to read. * * Follows the XDG specification to search for the configuration file. */ static FILE * open_config_file(char *cpath, char **ppath) { const static char *config_filename = "/compton.conf"; const static char *config_filename_legacy = "/.compton.conf"; const static char *config_home_suffix = "/.config"; const static char *config_system_dir = "/etc/xdg"; char *dir = NULL, *home = NULL; char *path = cpath; FILE *f = NULL; if (path) { f = fopen(path, "r"); if (f && ppath) *ppath = path; else free(path); return f; } // Check user configuration file in $XDG_CONFIG_HOME firstly if (!((dir = getenv("XDG_CONFIG_HOME")) && strlen(dir))) { if (!((home = getenv("HOME")) && strlen(home))) return NULL; path = mstrjoin3(home, config_home_suffix, config_filename); } else path = mstrjoin(dir, config_filename); f = fopen(path, "r"); if (f && ppath) *ppath = path; else free(path); if (f) return f; // Then check user configuration file in $HOME if ((home = getenv("HOME")) && strlen(home)) { path = mstrjoin(home, config_filename_legacy); f = fopen(path, "r"); if (f && ppath) *ppath = path; else free(path); if (f) return f; } // Check system configuration file in $XDG_CONFIG_DIRS at last if ((dir = getenv("XDG_CONFIG_DIRS")) && strlen(dir)) { char *part = strtok(dir, ":"); while (part) { path = mstrjoin(part, config_filename); f = fopen(path, "r"); if (f && ppath) *ppath = path; else free(path); if (f) return f; part = strtok(NULL, ":"); } } else { path = mstrjoin(config_system_dir, config_filename); f = fopen(path, "r"); if (f && ppath) *ppath = path; else free(path); if (f) return f; } return NULL; } /** * Parse a configuration file from default location. */ static void parse_config(char *cpath, struct options_tmp *pcfgtmp) { char *path = NULL, *parent = NULL; FILE *f; config_t cfg; int ival = 0; double dval = 0.0; f = open_config_file(cpath, &path); if (!f) { if (cpath) printf("Failed to read the specified configuration file.\n"); return; } config_init(&cfg); parent = dirname(path); if (parent) config_set_include_dir(&cfg, parent); if (CONFIG_FALSE == config_read(&cfg, f)) { printf("Error when reading configuration file \"%s\", line %d: %s\n", path, config_error_line(&cfg), config_error_text(&cfg)); config_destroy(&cfg); free(path); return; } config_set_auto_convert(&cfg, 1); free(path); // Get options from the configuration file. We don't do range checking // right now. It will be done later // -D (fade_delta) if (config_lookup_int(&cfg, "fade-delta", &ival)) opts.fade_delta = ival; // -I (fade_in_step) if (config_lookup_float(&cfg, "fade-in-step", &dval)) opts.fade_in_step = normalize_d(dval) * OPAQUE; // -O (fade_out_step) if (config_lookup_float(&cfg, "fade-out-step", &dval)) opts.fade_out_step = normalize_d(dval) * OPAQUE; // -r (shadow_radius) config_lookup_int(&cfg, "shadow-radius", &opts.shadow_radius); // -o (shadow_opacity) config_lookup_float(&cfg, "shadow-opacity", &opts.shadow_opacity); // -l (shadow_offset_x) config_lookup_int(&cfg, "shadow-offset-x", &opts.shadow_offset_x); // -t (shadow_offset_y) config_lookup_int(&cfg, "shadow-offset-y", &opts.shadow_offset_y); // -i (inactive_opacity) if (config_lookup_float(&cfg, "inactive-opacity", &dval)) opts.inactive_opacity = normalize_d(dval) * OPAQUE; // -e (frame_opacity) config_lookup_float(&cfg, "frame-opacity", &opts.frame_opacity); // -z (clear_shadow) lcfg_lookup_bool(&cfg, "clear-shadow", &opts.clear_shadow); // -c (shadow_enable) if (config_lookup_bool(&cfg, "shadow", &ival) && ival) wintype_arr_enable(opts.wintype_shadow); // -C (no_dock_shadow) lcfg_lookup_bool(&cfg, "no-dock-shadow", &pcfgtmp->no_dock_shadow); // -G (no_dnd_shadow) lcfg_lookup_bool(&cfg, "no-dnd-shadow", &pcfgtmp->no_dnd_shadow); // -m (menu_opacity) config_lookup_float(&cfg, "menu-opacity", &pcfgtmp->menu_opacity); // -f (fading_enable) if (config_lookup_bool(&cfg, "fading", &ival) && ival) wintype_arr_enable(opts.wintype_fade); // --shadow-red config_lookup_float(&cfg, "shadow-red", &opts.shadow_red); // --shadow-green config_lookup_float(&cfg, "shadow-green", &opts.shadow_green); // --shadow-blue config_lookup_float(&cfg, "shadow-blue", &opts.shadow_blue); // --inactive-opacity-override lcfg_lookup_bool(&cfg, "inactive-opacity-override", &opts.inactive_opacity_override); // --inactive-dim config_lookup_float(&cfg, "inactive-dim", &opts.inactive_dim); // --mark-wmwin-focused lcfg_lookup_bool(&cfg, "mark-wmwin-focused", &opts.mark_wmwin_focused); // --shadow-exclude { config_setting_t *setting = config_lookup(&cfg, "shadow-exclude"); if (setting) { // Parse an array of shadow-exclude if (config_setting_is_array(setting)) { int i = config_setting_length(setting); while (i--) { condlst_add(&opts.shadow_blacklist, config_setting_get_string_elem(setting, i)); } } // Treat it as a single pattern if it's a string else if (CONFIG_TYPE_STRING == config_setting_type(setting)) { condlst_add(&opts.shadow_blacklist, config_setting_get_string(setting)); } } } // Wintype settings { wintype i; for (i = 0; i < NUM_WINTYPES; ++i) { char *str = mstrjoin("wintypes.", WINTYPES[i]); config_setting_t *setting = config_lookup(&cfg, str); free(str); if (setting) { if (config_setting_lookup_bool(setting, "shadow", &ival)) opts.wintype_shadow[i] = (Bool) ival; if (config_setting_lookup_bool(setting, "fade", &ival)) opts.wintype_fade[i] = (Bool) ival; config_setting_lookup_float(setting, "opacity", &opts.wintype_opacity[i]); } } } config_destroy(&cfg); } #endif /** * Process arguments and configuration files. */ static void get_cfg(int argc, char *const *argv) { const static char *shortopts = "D:I:O:d:r:o:m:l:t:i:e:scnfFCaSzGb"; const static struct option longopts[] = { { "config", required_argument, NULL, 256 }, { "shadow-red", required_argument, NULL, 257 }, { "shadow-green", required_argument, NULL, 258 }, { "shadow-blue", required_argument, NULL, 259 }, { "inactive-opacity-override", no_argument, NULL, 260 }, { "inactive-dim", required_argument, NULL, 261 }, { "mark-wmwin-focused", no_argument, NULL, 262 }, { "shadow-exclude", required_argument, NULL, 263 }, // Must terminate with a NULL entry { NULL, 0, NULL, 0 }, }; struct options_tmp cfgtmp = { .no_dock_shadow = False, .no_dnd_shadow = False, .menu_opacity = 1.0, }; Bool shadow_enable = False, fading_enable = False; int o, longopt_idx, i; char *config_file = NULL; for (i = 0; i < NUM_WINTYPES; ++i) { opts.wintype_fade[i] = False; opts.wintype_shadow[i] = False; opts.wintype_opacity[i] = 1.0; } // Pre-parse the commandline arguments to check for --config and invalid // switches while (-1 != (o = getopt_long(argc, argv, shortopts, longopts, &longopt_idx))) { if (256 == o) config_file = mstrcpy(optarg); else if ('?' == o || ':' == o) usage(); } #ifdef CONFIG_LIBCONFIG parse_config(config_file, &cfgtmp); #endif // Parse commandline arguments. Range checking will be done later. optind = 1; while (-1 != (o = getopt_long(argc, argv, shortopts, longopts, &longopt_idx))) { switch (o) { // Short options case 'd': opts.display = optarg; break; case 'D': opts.fade_delta = atoi(optarg); break; case 'I': opts.fade_in_step = normalize_d(atof(optarg)) * OPAQUE; break; case 'O': opts.fade_out_step = normalize_d(atof(optarg)) * OPAQUE; break; case 'c': shadow_enable = True; break; case 'C': cfgtmp.no_dock_shadow = True; break; case 'G': cfgtmp.no_dnd_shadow = True; break; case 'm': cfgtmp.menu_opacity = atof(optarg); break; case 'f': fading_enable = True; break; case 'F': opts.fade_trans = True; break; case 'S': opts.synchronize = True; break; case 'r': opts.shadow_radius = atoi(optarg); break; case 'o': opts.shadow_opacity = atof(optarg); break; case 'l': opts.shadow_offset_x = atoi(optarg); break; case 't': opts.shadow_offset_y = atoi(optarg); break; case 'i': opts.inactive_opacity = (normalize_d(atof(optarg)) * OPAQUE); break; case 'e': opts.frame_opacity = atof(optarg); break; case 'z': opts.clear_shadow = True; break; case 'n': case 'a': case 's': fprintf(stderr, "Warning: " "-n, -a, and -s have been removed.\n"); break; case 'b': opts.fork_after_register = True; break; // Long options case 256: // --config break; case 257: // --shadow-red opts.shadow_red = atof(optarg); break; case 258: // --shadow-green opts.shadow_green = atof(optarg); break; case 259: // --shadow-blue opts.shadow_blue = atof(optarg); break; case 260: // --inactive-opacity-override opts.inactive_opacity_override = True; break; case 261: // --inactive-dim opts.inactive_dim = atof(optarg); break; case 262: // --mark-wmwin-focused opts.mark_wmwin_focused = True; break; case 263: // --shadow-exclude condlst_add(&opts.shadow_blacklist, optarg); break; default: usage(); break; } } // Range checking and option assignments opts.fade_delta = max_i(opts.fade_delta, 1); opts.shadow_radius = max_i(opts.shadow_radius, 1); opts.shadow_red = normalize_d(opts.shadow_red); opts.shadow_green = normalize_d(opts.shadow_green); opts.shadow_blue = normalize_d(opts.shadow_blue); opts.inactive_dim = normalize_d(opts.inactive_dim); opts.frame_opacity = normalize_d(opts.frame_opacity); opts.shadow_opacity = normalize_d(opts.shadow_opacity); cfgtmp.menu_opacity = normalize_d(cfgtmp.menu_opacity); if (OPAQUE == opts.inactive_opacity) { opts.inactive_opacity = 0; } if (shadow_enable) wintype_arr_enable(opts.wintype_shadow); opts.wintype_shadow[WINTYPE_DESKTOP] = False; if (cfgtmp.no_dock_shadow) opts.wintype_shadow[WINTYPE_DOCK] = False; if (cfgtmp.no_dnd_shadow) opts.wintype_shadow[WINTYPE_DND] = False; if (fading_enable) wintype_arr_enable(opts.wintype_fade); if (1.0 != cfgtmp.menu_opacity) { opts.wintype_opacity[WINTYPE_DROPDOWN_MENU] = cfgtmp.menu_opacity; opts.wintype_opacity[WINTYPE_POPUP_MENU] = cfgtmp.menu_opacity; } // Other variables determined by options // Determine whether we need to track focus changes if (opts.inactive_opacity || opts.inactive_dim) { opts.track_focus = True; } // Determine whether we need to track window name and class if (opts.shadow_blacklist || opts.fade_blacklist) opts.track_wdata = True; } static void get_atoms(void) { extents_atom = XInternAtom(dpy, "_NET_FRAME_EXTENTS", False); opacity_atom = XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False); frame_extents_atom = XInternAtom(dpy, "_NET_FRAME_EXTENTS", False); client_atom = XA_WM_CLASS; name_atom = XA_WM_NAME; name_ewmh_atom = XInternAtom(dpy, "_NET_WM_NAME", False); class_atom = XA_WM_CLASS; win_type_atom = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False); win_type[WINTYPE_UNKNOWN] = 0; win_type[WINTYPE_DESKTOP] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DESKTOP", False); win_type[WINTYPE_DOCK] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DOCK", False); win_type[WINTYPE_TOOLBAR] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_TOOLBAR", False); win_type[WINTYPE_MENU] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_MENU", False); win_type[WINTYPE_UTILITY] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_UTILITY", False); win_type[WINTYPE_SPLASH] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_SPLASH", False); win_type[WINTYPE_DIALOG] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False); win_type[WINTYPE_NORMAL] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_NORMAL", False); win_type[WINTYPE_DROPDOWN_MENU] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DROPDOWN_MENU", False); win_type[WINTYPE_POPUP_MENU] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_POPUP_MENU", False); win_type[WINTYPE_TOOLTIP] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_TOOLTIP", False); win_type[WINTYPE_NOTIFY] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_NOTIFICATION", False); win_type[WINTYPE_COMBO] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_COMBO", False); win_type[WINTYPE_DND] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DND", False); } int main(int argc, char **argv) { XEvent ev; Window root_return, parent_return; Window *children; unsigned int nchildren; int i; XRenderPictureAttributes pa; struct pollfd ufd; int composite_major, composite_minor; win *t; gettimeofday(&time_start, NULL); // Set locale so window names with special characters are interpreted // correctly setlocale (LC_ALL, ""); get_cfg(argc, argv); fade_time = get_time_in_milliseconds(); dpy = XOpenDisplay(opts.display); if (!dpy) { fprintf(stderr, "Can't open display\n"); exit(1); } XSetErrorHandler(error); if (opts.synchronize) { XSynchronize(dpy, 1); } scr = DefaultScreen(dpy); root = RootWindow(dpy, scr); if (!XRenderQueryExtension(dpy, &render_event, &render_error)) { fprintf(stderr, "No render extension\n"); exit(1); } if (!XQueryExtension(dpy, COMPOSITE_NAME, &composite_opcode, &composite_event, &composite_error)) { fprintf(stderr, "No composite extension\n"); exit(1); } XCompositeQueryVersion(dpy, &composite_major, &composite_minor); #if HAS_NAME_WINDOW_PIXMAP if (composite_major > 0 || composite_minor >= 2) { has_name_pixmap = True; } #endif if (!XDamageQueryExtension(dpy, &damage_event, &damage_error)) { fprintf(stderr, "No damage extension\n"); exit(1); } if (!XFixesQueryExtension(dpy, &xfixes_event, &xfixes_error)) { fprintf(stderr, "No XFixes extension\n"); exit(1); } if (!XShapeQueryExtension(dpy, &shape_event, &shape_error)) { shape_exists = False; } register_cm(scr); if (opts.fork_after_register) fork_after(); get_atoms(); pa.subwindow_mode = IncludeInferiors; gaussian_map = make_gaussian_map(dpy, opts.shadow_radius); presum_gaussian(gaussian_map); root_width = DisplayWidth(dpy, scr); root_height = DisplayHeight(dpy, scr); root_picture = XRenderCreatePicture(dpy, root, XRenderFindVisualFormat(dpy, DefaultVisual(dpy, scr)), CPSubwindowMode, &pa); black_picture = solid_picture(dpy, True, 1, 0, 0, 0); // Generates another Picture for shadows if the color is modified by // user if (!opts.shadow_red && !opts.shadow_green && !opts.shadow_blue) { cshadow_picture = black_picture; } else { cshadow_picture = solid_picture(dpy, True, 1, opts.shadow_red, opts.shadow_green, opts.shadow_blue); } // Generates a picture for inactive_dim if (opts.inactive_dim) { dim_picture = solid_picture(dpy, True, opts.inactive_dim, 0, 0, 0); } all_damage = None; XGrabServer(dpy); XCompositeRedirectSubwindows( dpy, root, CompositeRedirectManual); XSelectInput(dpy, root, SubstructureNotifyMask | ExposureMask | StructureNotifyMask | PropertyChangeMask); XQueryTree(dpy, root, &root_return, &parent_return, &children, &nchildren); for (i = 0; i < nchildren; i++) { add_win(dpy, children[i], i ? children[i-1] : None, False); } XFree(children); if (opts.track_focus) { recheck_focus(dpy); } XUngrabServer(dpy); ufd.fd = ConnectionNumber(dpy); ufd.events = POLLIN; t = paint_preprocess(dpy, list); paint_all(dpy, None, t); for (;;) { do { if (!QLength(dpy)) { if (poll(&ufd, 1, fade_timeout()) == 0) { break; } } XNextEvent(dpy, &ev); ev_handle((XEvent *)&ev); } while (QLength(dpy)); t = paint_preprocess(dpy, list); if (all_damage) { static int paint; paint_all(dpy, all_damage, t); paint++; XSync(dpy, False); all_damage = None; } } }