#if 0 libdecor_path="/home/mr4th/mr4th/libdecor" gtk_flags="$(pkg-config --cflags --libs gtk+-3.0)" dbus_flags="$(pkg-config --cflags --libs dbus-1)" #echo "gtk_flags: $gtk_flags" #echo "dbus_flags: $dbus_flags" root_path="$PWD" mkdir -p build clang -o build/demo -g $root_path/digesting_libdecor.c $gtk_flags $dbus_flags -Iwayland -I$libdecor_path/src -I$libdecor_path/src/plugins -I$libdecor_path/build -lwayland-client -lwayland-cursor -lwayland-egl -lEGL -lm exit 0 #endif /* ** Reading From: ** (1) Wayland Docs https://wayland.freedesktop.org/docs/html/ ** (egl) EGL spec https://registry.khronos.org/EGL/sdk/docs/man/ ** (libdecor.h) /usr/include/libdecor-0/libdecor.h ** ** (nodocs-wl_egl) I cannot find any documentation for wl_egl_ except for ** headers and example code. */ /* [1] IMPORTANT NOTE @see([1] in wayland_xdg_egl.c) */ #define _GNU_SOURCE #include #include #include #include /*~ NOTE: wayland-egl.h *before* EGL/ */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "xdg-shell-client-protocol.h" #include "xdg-decoration-client-protocol.h" #include "xdg-shell-client-protocol.c" #include "xdg-decoration-client-protocol.c" #include "digesting_libdecor.h" // X(N:name,R:return,P:params) #define GL_FUNCS_XLIST(X)\ X(glDrawBuffer, void, (GLenum buf)) \ X(glViewport, void, (GLint x, GLint y, GLsizei w, GLsizei h)) \ X(glClear, void, (GLbitfield mask)) \ X(glClearColor, void, (GLfloat r, GLfloat g, GLfloat b, GLfloat a)) #define X(N,R,P) R (*N)P = 0; GL_FUNCS_XLIST(X) #undef X static Ctx ctx = {0}; static void xdg_wm_base_ping(void *user_data, struct xdg_wm_base *xdg_wm_base, uint32_t serial){ xdg_wm_base_pong(xdg_wm_base, serial); } const struct xdg_wm_base_listener xdg_wm_base_listener = { xdg_wm_base_ping, }; static void shm_format(void *user_data, struct wl_shm *wl_shm, uint32_t format){ if (format == WL_SHM_FORMAT_ARGB8888){ ctx.has_argb = true; } } const struct wl_shm_listener shm_listener = { shm_format }; static void pointer_enter(void *data, struct wl_pointer *wl_pointer, uint32_t serial, struct wl_surface *surface, wl_fixed_t x, wl_fixed_t y){ struct seat *seat = data; seat->pointer_x = wl_fixed_to_int(x); seat->pointer_y = wl_fixed_to_int(y); seat->serial = serial; seat->pointer_focus = surface; ctx.active = component_slot_from_wl_surface(surface); if (own_proxy(surface)){ if (ctx.active != 0){ draw_decoration(); wl_surface_commit(ctx.wl_surface); } seat->current_cursor = wl_cursor_from_pos(seat->pointer_x, seat->pointer_y); if (seat->current_cursor != 0){ struct wl_cursor_image *image = seat->current_cursor->images[0]; struct wl_buffer *buffer = wl_cursor_image_get_buffer(image); wl_surface_set_buffer_scale(seat->cursor_surface, 1); wl_surface_attach(seat->cursor_surface, buffer, 0, 0); wl_surface_damage_buffer(seat->cursor_surface, 0, 0, image->width, image->height); wl_surface_commit(seat->cursor_surface); wl_pointer_set_cursor(seat->wl_pointer, seat->serial, seat->cursor_surface, image->hotspot_x, image->hotspot_y); } } } static void pointer_leave(void *data, struct wl_pointer *wl_pointer, uint32_t serial, struct wl_surface *surface){ struct seat *seat = data; seat->pointer_focus = 0; if (surface != 0 && own_proxy(surface)){ ctx.titlebar_gesture.state = TITLEBAR_GESTURE_STATE_INIT; ctx.titlebar_gesture.first_pressed_button = 0; ctx.active = 0; ctx.hdr_focus.widget = 0; ctx.hdr_focus.type = HEADER_NONE; draw_decoration(); wl_surface_commit(ctx.wl_surface); seat->current_cursor = wl_cursor_from_pos(seat->pointer_x, seat->pointer_y); } } static void pointer_motion(void *data, struct wl_pointer *wl_pointer, uint32_t time, wl_fixed_t surface_x, wl_fixed_t surface_y){ struct seat *seat = data; struct header_element_data new_focus; if (own_proxy(seat->pointer_focus)){ seat->pointer_x = wl_fixed_to_int(surface_x); seat->pointer_y = wl_fixed_to_int(surface_y); seat->current_cursor = wl_cursor_from_pos(seat->pointer_x, seat->pointer_y); if (seat->current_cursor != 0){ struct wl_cursor_image *image = seat->current_cursor->images[0]; struct wl_buffer *buffer = wl_cursor_image_get_buffer(image); wl_surface_attach(seat->cursor_surface, buffer, 0, 0); wl_surface_set_buffer_scale(seat->cursor_surface, 1); wl_surface_damage_buffer(seat->cursor_surface, 0, 0, image->width, image->height); wl_surface_commit(seat->cursor_surface); wl_pointer_set_cursor(seat->wl_pointer, seat->serial, seat->cursor_surface, image->hotspot_x, image->hotspot_y); } /* avoid warnings after decoration has been turned off */ if (!GTK_IS_WIDGET(ctx.header) || ctx.active != COMPONENT_SLOT_HEADER){ ctx.hdr_focus.type = HEADER_NONE; } new_focus = get_header_focus(GTK_HEADER_BAR(ctx.header), seat->pointer_x, seat->pointer_y); /* only update if widget change so that we keep the state */ if (ctx.hdr_focus.widget != new_focus.widget){ ctx.hdr_focus = new_focus; } ctx.hdr_focus.state |= GTK_STATE_FLAG_PRELIGHT; /* redraw with updated button visuals */ draw_title_bar(); wl_surface_commit(ctx.wl_surface); if (ctx.titlebar_gesture.state == TITLEBAR_GESTURE_STATE_BUTTON_PRESSED){ if (ctx.titlebar_gesture.first_pressed_button == BTN_LEFT){ int xd = ABS(seat->pointer_x - ctx.titlebar_gesture.pressed_x); int yd = ABS(seat->pointer_y - ctx.titlebar_gesture.pressed_y); if (xd > ctx.drag_threshold || yd > ctx.drag_threshold){ xdg_toplevel_move(ctx.xdg_toplevel, seat->wl_seat, ctx.titlebar_gesture.serial); } } } } } static void pointer_button(void *data, struct wl_pointer *wl_pointer, uint32_t serial, uint32_t time, uint32_t button, uint32_t state){ struct seat *seat = data; if (own_proxy(seat->pointer_focus)){ switch (ctx.active){ case COMPONENT_SLOT_SHADOW: { enum libdecor_resize_edge edge = edge_from_pos(seat->pointer_x, seat->pointer_y); if (edge != LIBDECOR_RESIZE_EDGE_NONE && (ctx.frame_capabilities & LIBDECOR_ACTION_RESIZE)){ xdg_toplevel_resize(ctx.xdg_toplevel, seat->wl_seat, serial, xdg_edge_from_edge(edge)); } }break; case COMPONENT_SLOT_HEADER: { switch (ctx.titlebar_gesture.state){ case TITLEBAR_GESTURE_STATE_INIT: { if (state == WL_POINTER_BUTTON_STATE_PRESSED){ if (button == BTN_RIGHT){ const int title_height = gtk_widget_get_allocated_height(ctx.header); xdg_toplevel_show_window_menu(ctx.xdg_toplevel, seat->wl_seat, serial, seat->pointer_x, -title_height); ctx.titlebar_gesture.state = TITLEBAR_GESTURE_STATE_CONSUMED; } else{ if (button == BTN_LEFT && ctx.titlebar_gesture.first_pressed_button == BTN_LEFT && time - ctx.titlebar_gesture.first_pressed_time < (uint32_t)ctx.double_click_time_ms){ if ((ctx.frame_capabilities & LIBDECOR_ACTION_RESIZE)){ toggle_maximized(); } ctx.titlebar_gesture.state = TITLEBAR_GESTURE_STATE_CONSUMED; } else{ ctx.titlebar_gesture.first_pressed_button = button; ctx.titlebar_gesture.first_pressed_time = time; ctx.titlebar_gesture.pressed_x = seat->pointer_x; ctx.titlebar_gesture.pressed_y = seat->pointer_y; ctx.titlebar_gesture.serial = serial; ctx.titlebar_gesture.state = TITLEBAR_GESTURE_STATE_BUTTON_PRESSED; } } ctx.titlebar_gesture.button_pressed_count = 1; switch (ctx.hdr_focus.type){ case HEADER_MIN: case HEADER_MAX: case HEADER_CLOSE: { ctx.hdr_focus.state |= GTK_STATE_FLAG_ACTIVE; draw_title_bar(); wl_surface_commit(ctx.wl_surface); }break; default: break; } } }break; case TITLEBAR_GESTURE_STATE_BUTTON_PRESSED: { if (state == WL_POINTER_BUTTON_STATE_PRESSED) { ctx.titlebar_gesture.state = TITLEBAR_GESTURE_STATE_DISCARDED; ctx.titlebar_gesture.button_pressed_count += 1; } else{ ctx.titlebar_gesture.button_pressed_count -= 1; if (ctx.titlebar_gesture.button_pressed_count == 0) { ctx.titlebar_gesture.state = TITLEBAR_GESTURE_STATE_INIT; if (ctx.titlebar_gesture.first_pressed_button == button && button == BTN_LEFT) { switch (ctx.hdr_focus.type) { case HEADER_MIN: { if (ctx.frame_capabilities & LIBDECOR_ACTION_MINIMIZE){ xdg_toplevel_set_minimized(ctx.xdg_toplevel); } }break; case HEADER_MAX: { if ((ctx.frame_capabilities & LIBDECOR_ACTION_RESIZE)){ toggle_maximized(); } }break; case HEADER_CLOSE: { if (ctx.frame_capabilities & LIBDECOR_ACTION_CLOSE){ ctx.close_signal = 1; seat->pointer_focus = 0; } }break; default: break; } ctx.hdr_focus.state &= ~GTK_STATE_FLAG_ACTIVE; if (GTK_IS_WIDGET(ctx.header)){ draw_title_bar(); wl_surface_commit(ctx.wl_surface); } } } else{ ctx.hdr_focus.state &= ~GTK_STATE_FLAG_ACTIVE; if (GTK_IS_WIDGET(ctx.header)) { draw_title_bar(); wl_surface_commit(ctx.wl_surface); } } } }break; case TITLEBAR_GESTURE_STATE_CONSUMED: case TITLEBAR_GESTURE_STATE_DISCARDED: { if (state == WL_POINTER_BUTTON_STATE_PRESSED){ ctx.titlebar_gesture.button_pressed_count++; } else{ ctx.titlebar_gesture.button_pressed_count--; if (ctx.titlebar_gesture.button_pressed_count == 0) { ctx.titlebar_gesture.state = TITLEBAR_GESTURE_STATE_INIT; ctx.titlebar_gesture.first_pressed_button = 0; } } }break; } }break; default: break; } } } static void pointer_axis(void *data, struct wl_pointer *wl_pointer, uint32_t time, uint32_t axis, wl_fixed_t value){} const struct wl_pointer_listener pointer_listener = { pointer_enter, pointer_leave, pointer_motion, pointer_button, pointer_axis }; static void touch_down(void *data, struct wl_touch *wl_touch, uint32_t serial, uint32_t time, struct wl_surface *surface, int32_t id, wl_fixed_t x, wl_fixed_t y){ struct seat *seat = data; if (surface != 0 && own_proxy(surface)){ seat->touch_focus = surface; ctx.touch_active = component_slot_from_wl_surface(surface); if (ctx.touch_active){ update_touch_focus(seat, x, y); /* update decorations */ draw_decoration(); wl_surface_commit(ctx.wl_surface); switch (ctx.touch_active){ case COMPONENT_SLOT_SHADOW: { enum libdecor_resize_edge edge = edge_from_pos(wl_fixed_to_int(x), wl_fixed_to_int(y)); if (edge != LIBDECOR_RESIZE_EDGE_NONE && (ctx.frame_capabilities & LIBDECOR_ACTION_RESIZE)){ xdg_toplevel_resize(ctx.xdg_toplevel, seat->wl_seat, serial, xdg_edge_from_edge(edge)); } }break; case COMPONENT_SLOT_HEADER: { switch (ctx.hdr_focus.type){ case HEADER_MIN: case HEADER_MAX: case HEADER_CLOSE: { ctx.hdr_focus.state |= GTK_STATE_FLAG_ACTIVE; draw_title_bar(); wl_surface_commit(ctx.wl_surface); }break; default: { if (time - seat->touch_down_time_stamp < (uint32_t)ctx.double_click_time_ms) { if ((ctx.frame_capabilities & LIBDECOR_ACTION_RESIZE)){ toggle_maximized(); } } else{ if (ctx.frame_capabilities & LIBDECOR_ACTION_MOVE){ seat->touch_down_time_stamp = time; xdg_toplevel_move(ctx.xdg_toplevel, seat->wl_seat, serial); } } }break; } }break; default: break; } } } } static void touch_up(void *data, struct wl_touch *wl_touch, uint32_t serial, uint32_t time, int32_t id){ struct seat *seat = data; if (seat->touch_focus && own_proxy(seat->touch_focus)){ if (ctx.touch_active != 0){ if (ctx.touch_active == COMPONENT_SLOT_HEADER){ switch (ctx.hdr_focus.type) { case HEADER_MIN: { if (ctx.frame_capabilities & LIBDECOR_ACTION_MINIMIZE){ xdg_toplevel_set_minimized(ctx.xdg_toplevel); } }break; case HEADER_MAX: { if ((ctx.frame_capabilities & LIBDECOR_ACTION_RESIZE)){ toggle_maximized(); } }break; case HEADER_CLOSE: { if (ctx.frame_capabilities & LIBDECOR_ACTION_CLOSE){ ctx.close_signal = 1; seat->touch_focus = 0; } }break; default: break; } /* unset active/clicked state once released */ ctx.hdr_focus.state &= ~GTK_STATE_FLAG_ACTIVE; if (GTK_IS_WIDGET(ctx.header)) { draw_title_bar(); wl_surface_commit(ctx.wl_surface); } } seat->touch_focus = 0; ctx.touch_active = 0; ctx.hdr_focus.widget = 0; ctx.hdr_focus.type = HEADER_NONE; draw_decoration(); wl_surface_commit(ctx.wl_surface); } } } static void touch_motion(void *data, struct wl_touch *wl_touch, uint32_t time, int32_t id, wl_fixed_t x, wl_fixed_t y){ struct seat *seat = data; if (seat->touch_focus != 0 && own_proxy(seat->touch_focus)){ update_touch_focus(seat, x, y); } } static void touch_frame(void *data, struct wl_touch *wl_touch){} static void touch_cancel(void *data, struct wl_touch *wl_touch){} const struct wl_touch_listener touch_listener = { touch_down, touch_up, touch_motion, touch_frame, touch_cancel }; static void seat_capabilities(void *data, struct wl_seat *wl_seat, uint32_t capabilities){ struct seat *seat = data; if ((capabilities & WL_SEAT_CAPABILITY_POINTER) && seat->wl_pointer == 0){ seat->wl_pointer = wl_seat_get_pointer(wl_seat); wl_pointer_add_listener(seat->wl_pointer, &pointer_listener, seat); } else if (!(capabilities & WL_SEAT_CAPABILITY_POINTER) && seat->wl_pointer != 0){ wl_pointer_release(seat->wl_pointer); seat->wl_pointer = 0; } if ((capabilities & WL_SEAT_CAPABILITY_TOUCH) && seat->wl_touch == 0){ seat->wl_touch = wl_seat_get_touch(wl_seat); wl_touch_add_listener(seat->wl_touch, &touch_listener, seat); } else if (!(capabilities & WL_SEAT_CAPABILITY_TOUCH) && seat->wl_touch != 0){ wl_touch_release(seat->wl_touch); seat->wl_touch = 0; } } static void seat_name(void *data, struct wl_seat *wl_seat, const char *name){ struct seat *seat = (struct seat*)data; seat->name = strdup(name); } const struct wl_seat_listener seat_listener = { seat_capabilities, seat_name }; static void wl_registry_global(void *data, struct wl_registry *wl_registry, uint32_t name, const char *interface, uint32_t version){ if (strcmp(interface, "wl_compositor") == 0){ ctx.wl_compositor = (struct wl_compositor*) wl_registry_bind(wl_registry, name, &wl_compositor_interface, MIN(version, 4)); } else if (!strcmp(interface, xdg_wm_base_interface.name)){ ctx.xdg_wm_base = wl_registry_bind(ctx.wl_registry, name, &xdg_wm_base_interface, MIN(version, 2)); xdg_wm_base_add_listener(ctx.xdg_wm_base, &xdg_wm_base_listener, 0); } else if (!strcmp(interface, zxdg_decoration_manager_v1_interface.name)){ uint32_t desired_version = 2; /* Find the required version for the available features. */ #ifdef XDG_TOPLEVEL_STATE_CONSTRAINED_LEFT_SINCE_VERSION desired_version = MAX(desired_version, XDG_TOPLEVEL_STATE_CONSTRAINED_LEFT_SINCE_VERSION); #endif #ifdef XDG_TOPLEVEL_STATE_SUSPENDED_SINCE_VERSION desired_version = MAX(desired_version, XDG_TOPLEVEL_STATE_SUSPENDED_SINCE_VERSION); #endif #ifdef XDG_TOPLEVEL_WM_CAPABILITIES_SINCE_VERSION desired_version = MAX(desired_version, XDG_TOPLEVEL_WM_CAPABILITIES_SINCE_VERSION); #endif #ifdef XDG_TOPLEVEL_CONFIGURE_BOUNDS_SINCE_VERSION desired_version = MAX(desired_version, XDG_TOPLEVEL_CONFIGURE_BOUNDS_SINCE_VERSION); #endif ctx.decoration_manager = wl_registry_bind(wl_registry, name, &zxdg_decoration_manager_v1_interface, MIN(version, desired_version)); } else if (strcmp(interface, "wl_subcompositor") == 0){ ctx.wl_subcompositor = wl_registry_bind(ctx.wl_registry, name, &wl_subcompositor_interface, 1); } else if (strcmp(interface, "wl_shm") == 0){ ctx.wl_shm = wl_registry_bind(ctx.wl_registry, name, &wl_shm_interface, 1); wl_shm_add_listener(ctx.wl_shm, &shm_listener, 0); } else if (strcmp(interface, "wl_seat") == 0){ struct seat *seat; if (version < 3){ ctx.has_error = true; } seat = calloc(1, sizeof *seat); wl_list_insert(&ctx.seat_list, &seat->link); seat->wl_seat = wl_registry_bind(ctx.wl_registry, name, &wl_seat_interface, 3); wl_seat_add_listener(seat->wl_seat, &seat_listener, seat); seat->cursor_surface = wl_compositor_create_surface(ctx.wl_compositor); } } static void wl_registry_global_remove(void *data, struct wl_registry *registry, uint32_t name){} const struct wl_registry_listener wl_registry_listener = { wl_registry_global, wl_registry_global_remove, }; static void xdg_surface_configure(void *user_data, struct xdg_surface *xdg_surface, uint32_t serial){ struct libdecor_configuration *configuration; configuration = ctx.pending_configuration; ctx.pending_configuration = 0; if (configuration == 0){ configuration = calloc(1, sizeof *configuration); } configuration->serial = serial; { int w = ctx.w; int h = ctx.h; if (libdecor_configuration_get_content_size(configuration, &w, &h)){ ctx.w = w; ctx.h = h; } if (!ctx.configured){ ctx.configured = 1; libdecor_frame_commit(w, h, configuration); } else{ ctx.has_cached_config = 1; ctx.cached_config = *configuration; } } free(configuration); } const struct xdg_surface_listener xdg_surface_listener = { xdg_surface_configure, }; static void xdg_toplevel_configure(void *user_data, struct xdg_toplevel *xdg_toplevel, int32_t width, int32_t height, struct wl_array *states){ enum libdecor_window_state window_state = LIBDECOR_WINDOW_STATE_NONE; uint32_t *p; wl_array_for_each(p, states) { enum xdg_toplevel_state state = *p; switch (state) { case XDG_TOPLEVEL_STATE_FULLSCREEN: window_state |= LIBDECOR_WINDOW_STATE_FULLSCREEN; break; case XDG_TOPLEVEL_STATE_MAXIMIZED: window_state |= LIBDECOR_WINDOW_STATE_MAXIMIZED; break; case XDG_TOPLEVEL_STATE_ACTIVATED: window_state |= LIBDECOR_WINDOW_STATE_ACTIVE; break; case XDG_TOPLEVEL_STATE_TILED_LEFT: window_state |= LIBDECOR_WINDOW_STATE_TILED_LEFT; break; case XDG_TOPLEVEL_STATE_TILED_RIGHT: window_state |= LIBDECOR_WINDOW_STATE_TILED_RIGHT; break; case XDG_TOPLEVEL_STATE_TILED_TOP: window_state |= LIBDECOR_WINDOW_STATE_TILED_TOP; break; case XDG_TOPLEVEL_STATE_TILED_BOTTOM: window_state |= LIBDECOR_WINDOW_STATE_TILED_BOTTOM; break; case XDG_TOPLEVEL_STATE_RESIZING: window_state |= LIBDECOR_WINDOW_STATE_RESIZING; break; #ifdef XDG_TOPLEVEL_STATE_SUSPENDED_SINCE_VERSION case XDG_TOPLEVEL_STATE_SUSPENDED: window_state |= LIBDECOR_WINDOW_STATE_SUSPENDED; break; #endif #ifdef XDG_TOPLEVEL_STATE_CONSTRAINED_LEFT_SINCE_VERSION case XDG_TOPLEVEL_STATE_CONSTRAINED_LEFT: window_state |= LIBDECOR_WINDOW_STATE_CONSTRAINED_LEFT; break; case XDG_TOPLEVEL_STATE_CONSTRAINED_RIGHT: window_state |= LIBDECOR_WINDOW_STATE_CONSTRAINED_RIGHT; break; case XDG_TOPLEVEL_STATE_CONSTRAINED_TOP: window_state |= LIBDECOR_WINDOW_STATE_CONSTRAINED_TOP; break; case XDG_TOPLEVEL_STATE_CONSTRAINED_BOTTOM: window_state |= LIBDECOR_WINDOW_STATE_CONSTRAINED_BOTTOM; break; #endif default: break; } } ctx.pending_configuration = calloc(1, sizeof *ctx.pending_configuration); ctx.pending_configuration->has_size = true; ctx.pending_configuration->window_width = width; ctx.pending_configuration->window_height = height; ctx.pending_configuration->has_window_state = true; ctx.pending_configuration->window_state = window_state; } static void xdg_toplevel_close(void *user_data, struct xdg_toplevel *xdg_toplevel){ ctx.close_signal = 1; } #ifdef XDG_TOPLEVEL_CONFIGURE_BOUNDS_SINCE_VERSION static void xdg_toplevel_configure_bounds(void *user_data, struct xdg_toplevel *xdg_toplevel, int32_t w, int32_t h){ int32_t inner_w = w; int32_t inner_h = h; if (ctx.visible && ctx.decoration_mode == ZXDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE){ Bounds2D border_size = border_size_from_window_state(0); inner_w -= border_size.x[0] + border_size.x[1]; inner_h -= border_size.y[0] + border_size.y[1]; } // event to user (inner_w,inner_h) } #endif #ifdef XDG_TOPLEVEL_WM_CAPABILITIES_SINCE_VERSION static void xdg_toplevel_wm_capabilities(void *user_data, struct xdg_toplevel *xdg_toplevel, struct wl_array *capabilities){ enum xdg_toplevel_wm_capabilities *wm_cap; ctx.wm_capabilities = 0; wl_array_for_each(wm_cap, capabilities) { switch (*wm_cap) { case XDG_TOPLEVEL_WM_CAPABILITIES_WINDOW_MENU: { ctx.wm_capabilities |= LIBDECOR_WM_CAPABILITIES_WINDOW_MENU; }break; case XDG_TOPLEVEL_WM_CAPABILITIES_MAXIMIZE: { ctx.wm_capabilities |= LIBDECOR_WM_CAPABILITIES_MAXIMIZE; }break; case XDG_TOPLEVEL_WM_CAPABILITIES_FULLSCREEN: { ctx.wm_capabilities |= LIBDECOR_WM_CAPABILITIES_FULLSCREEN; }break; case XDG_TOPLEVEL_WM_CAPABILITIES_MINIMIZE: { ctx.wm_capabilities |= LIBDECOR_WM_CAPABILITIES_MINIMIZE; }break; default: break; } } } #endif const struct xdg_toplevel_listener xdg_toplevel_listener = { xdg_toplevel_configure, xdg_toplevel_close, #ifdef XDG_TOPLEVEL_CONFIGURE_BOUNDS_SINCE_VERSION xdg_toplevel_configure_bounds, #endif #ifdef XDG_TOPLEVEL_WM_CAPABILITIES_SINCE_VERSION xdg_toplevel_wm_capabilities, #endif }; static void xdg_toplevel_decoration_configure(void *data, struct zxdg_toplevel_decoration_v1 *zxdg_toplevel_decoration_v1, uint32_t mode){ if (!ctx.has_decoration_mode){ ctx.has_decoration_mode = true; ctx.decoration_mode = mode; } } const struct zxdg_toplevel_decoration_v1_listener xdg_toplevel_decoration_listener = { xdg_toplevel_decoration_configure, }; int main(){ /* get desktop settings */ ctx.color_scheme = libdecor_get_color_scheme(); if (libdecor_get_cursor_settings(&ctx.cursor_theme_name, &ctx.cursor_size)){ ctx.cursor_theme_name = 0; ctx.cursor_size = 24; } /* setup GTK context */ int gtk_init_success = 0; { gdk_set_allowed_backends("wayland"); gtk_disable_setlocale(); if (gtk_init_check(0, 0)){ gtk_init_success = 1; } g_object_set(gtk_settings_get_default(), "gtk-application-prefer-dark-theme", (ctx.color_scheme == LIBDECOR_COLOR_SCHEME_PREFER_DARK), NULL); if (!gtk_init_success){ printf("failed to initialize gtk\n"); } } /*~ NOTE: **~ initialize Wayland, Libdecor, & EGL */ { ctx.w = 640; ctx.h = 480; wl_list_init(&ctx.seat_list); } if (gtk_init_success){ ctx.wl_display = wl_display_connect(0); if (ctx.wl_display == 0){ printf("wl_display_connect failed\n"); } } if (ctx.wl_display != 0){ ctx.wl_registry = wl_display_get_registry(ctx.wl_display); if (ctx.wl_registry == 0){ printf("wl_display_get_registry failed\n"); } } if (ctx.wl_registry != 0){ wl_registry_add_listener(ctx.wl_registry, &wl_registry_listener, 0); wl_display_flush(ctx.wl_display); wl_display_dispatch(ctx.wl_display); wl_display_roundtrip(ctx.wl_display); if (ctx.wl_compositor == 0){ printf("failed to get wl_compositor\n"); ctx.has_error = 1; } if (ctx.wl_subcompositor == 0){ printf("failed to get wl_subcompositor\n"); ctx.has_error = 1; } if (ctx.wl_shm == 0){ printf("failed to get wl_shm\n"); ctx.has_error = 1; } } if (!ctx.has_error){ ctx.cursor_theme = wl_cursor_theme_load(ctx.cursor_theme_name, ctx.cursor_size, ctx.wl_shm); if (ctx.cursor_theme != 0){ for (unsigned int i = 0; i < ARRAY_LENGTH(cursor_names); i += 1){ ctx.cursors[i] = wl_cursor_theme_get_cursor(ctx.cursor_theme, cursor_names[i]); } ctx.cursor_left_ptr = wl_cursor_theme_get_cursor(ctx.cursor_theme, "left_ptr"); } } int opengl_load_success = 0; if (!ctx.has_error){ /* (egl) eglGetDisplay ** " obtains the EGL display connection for the native display " */ ctx.egl_display = eglGetDisplay(ctx.wl_display); if (ctx.egl_display == 0){ printf("eglGetDisplay failed\n"); } /* (egl) eglInitialize ** " initializes* the EGL display connection obtained with eglGetDisplay " */ int egl_init_success = 0; EGLint major = 0, minor = 0; if (ctx.egl_display != 0){ egl_init_success = eglInitialize(ctx.egl_display, &major, &minor); if (!egl_init_success){ printf("eglInitialize failed\n"); } } // print version if (egl_init_success){ printf("EGL version %d.%d\n", major, minor); if (major < 1 || (major == 1 && minor < 5)){ printf("version 1.5 or higher\n"); egl_init_success = 0; } } /* (egl) eglBindAPI ** " defines the current rendering API for EGL in the thread it is ** called from " */ EGLBoolean bind_api_success = 0; if (egl_init_success){ bind_api_success = eglBindAPI(EGL_OPENGL_API); } /* (egl) eglCreateContext ** " creates an EGL rendering context for the current rendering API ** (as set with eglBindAPI) and returns a handle to the context " */ if (bind_api_success){ EGLint attr[] = { EGL_CONTEXT_MAJOR_VERSION, 3, EGL_CONTEXT_MINOR_VERSION, 3, EGL_CONTEXT_OPENGL_PROFILE_MASK, EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT, EGL_NONE, }; ctx.egl_context = eglCreateContext(ctx.egl_display, EGL_NO_CONFIG_KHR, EGL_NO_CONTEXT, attr); if (ctx.egl_context == EGL_NO_CONTEXT){ printf("eglCreateContext failed\n"); } } /* (egl) eglMakeCurrent ** " binds context to the current rendering thread " */ EGLBoolean make_current_success = 0; if (ctx.egl_context != 0){ make_current_success = eglMakeCurrent(ctx.egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, ctx.egl_context); if (!make_current_success){ printf("eglMakeCurrent failed\n"); } } /* (egl) eglGetProcAddress ** " returns the address of the client API or EGL function " */ if (make_current_success){ opengl_load_success = 1; #define X(N,R,P) N = (R(*)P)(eglGetProcAddress(#N)); if (N == 0) opengl_load_success = 0; GL_FUNCS_XLIST(X) #undef X if (!opengl_load_success){ printf("GL procedure loading failed\n"); } } } /*~ NOTE: **~ Create a window */ if (opengl_load_success){ /* (1) Appendix A: wl_compositor::create_surface ** " create new surface " */ ctx.wl_surface = wl_compositor_create_surface(ctx.wl_compositor); if (ctx.wl_surface == 0){ printf("wl_compositor_create_surface failed\n"); } } if (ctx.wl_surface != 0){ { static const int size = 128; static const int boundary = 32; cairo_t *cr; cairo_surface_t *shadow_blur; shadow_blur = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, size, size); cr = cairo_create(shadow_blur); cairo_set_operator(cr, CAIRO_OPERATOR_OVER); cairo_set_source_rgba(cr, 0, 0, 0, 1); cairo_rectangle(cr, boundary, boundary, size - 2*boundary, size - 2*boundary); cairo_fill(cr); cairo_destroy(cr); blur_surface(shadow_blur, 64); ctx.shadow_blur = shadow_blur; } ctx.visible = true; ctx.wm_capabilities = (LIBDECOR_WM_CAPABILITIES_WINDOW_MENU | LIBDECOR_WM_CAPABILITIES_MAXIMIZE | LIBDECOR_WM_CAPABILITIES_FULLSCREEN | LIBDECOR_WM_CAPABILITIES_MINIMIZE); ctx.frame_capabilities = (LIBDECOR_ACTION_MOVE | LIBDECOR_ACTION_RESIZE | LIBDECOR_ACTION_MINIMIZE | LIBDECOR_ACTION_FULLSCREEN | LIBDECOR_ACTION_CLOSE); ctx.xdg_surface = xdg_wm_base_get_xdg_surface(ctx.xdg_wm_base, ctx.wl_surface); xdg_surface_add_listener(ctx.xdg_surface, &xdg_surface_listener, 0); ctx.xdg_toplevel = xdg_surface_get_toplevel(ctx.xdg_surface); xdg_toplevel_add_listener(ctx.xdg_toplevel, &xdg_toplevel_listener, 0); ctx.decoration_mode = ZXDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE; if (ctx.decoration_manager != 0){ ctx.toplevel_decoration = zxdg_decoration_manager_v1_get_toplevel_decoration(ctx.decoration_manager, ctx.xdg_toplevel); zxdg_toplevel_decoration_v1_add_listener(ctx.toplevel_decoration, &xdg_toplevel_decoration_listener, 0); } ctx.size_bounds.x[0] = 80; ctx.size_bounds.y[0] = 60; ctx.size_bounds.x[1] = (1 << 30); ctx.size_bounds.y[1] = (1 << 30); xdg_toplevel_set_app_id(ctx.xdg_toplevel, "demo"); xdg_toplevel_set_title(ctx.xdg_toplevel, "Example Window"); ctx.title = strdup("Example Window"); draw_decoration(); wl_surface_commit(ctx.wl_surface); /* (nodocs-wl_egl) */ ctx.wl_egl_window = wl_egl_window_create(ctx.wl_surface, ctx.w, ctx.h); if (ctx.wl_egl_window == EGL_NO_SURFACE){ printf("wl_egl_window_create failed\n"); } } if (ctx.wl_egl_window != EGL_NO_SURFACE){ /* (nodocs-wl_egl) eglChooseConfig ** " returns in configs a list of all EGL frame buffer configurations ** that match the attributes specified in attrib_list " */ EGLConfig configs[64]; EGLint config_cap = sizeof(configs)/sizeof(*configs); EGLint config_count = 0; { EGLint attributes[] = { EGL_SURFACE_TYPE, EGL_WINDOW_BIT, EGL_CONFORMANT, EGL_OPENGL_BIT, EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT, EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER, EGL_RED_SIZE, 8, EGL_GREEN_SIZE, 8, EGL_BLUE_SIZE, 8, EGL_DEPTH_SIZE, 24, EGL_STENCIL_SIZE, 8, EGL_NONE, }; if (!eglChooseConfig(ctx.egl_display, attributes, configs, config_cap, &config_count)){ printf("eglChooseConfig failed\n"); config_count = 0; } } /* (egl) eglCreateWindowSurface ** " creates an on-screen EGL window surface and returns a handle to it " */ { EGLint attributes[] = { EGL_RENDER_BUFFER, EGL_BACK_BUFFER, EGL_NONE, }; for (EGLint i = 0; i < config_count; i += 1){ ctx.egl_surface = eglCreateWindowSurface(ctx.egl_display, configs[i], ctx.wl_egl_window, attributes); if (ctx.egl_surface != EGL_NO_SURFACE){ break; } } if (ctx.egl_surface == EGL_NO_SURFACE){ printf("eglCreateWindowSurface failed\n"); } } } /* (egl) eglMakeCurrent */ EGLBoolean make_current_success2 = 0; if (ctx.egl_surface != EGL_NO_SURFACE){ make_current_success2 = eglMakeCurrent(ctx.egl_display, ctx.egl_surface, ctx.egl_surface, ctx.egl_context); } /* (egl) eglSwapInterval ** " specifies the minimum number of video frame periods per buffer swap ** for the window associated with the current context " */ EGLBoolean swap_interval_success = 0; if (make_current_success2){ swap_interval_success = eglSwapInterval(ctx.egl_display, 1); if (!swap_interval_success){ printf("eglSwapInterval failed\n"); } } /*~ NOTE: Main loop */ int exit_loop = 0; if (!swap_interval_success){ exit_loop = 1; } for (;!exit_loop;){ for (;g_main_context_iteration(0, 0);){} { struct pollfd fds[1] = {0}; /* register fds[0] ~ wayland events */ bool wayland_started_read = false; bool wayland_did_read = false; { fds[0].fd = -1; wl_display_dispatch_pending(ctx.wl_display); wayland_started_read = (wl_display_prepare_read(ctx.wl_display) != -1); if (wayland_started_read){ fds[0].fd = wl_display_get_fd(ctx.wl_display); fds[0].events = POLLIN; wl_display_flush(ctx.wl_display); } } /* poll and handle events */ int ret = poll(fds, ARRAY_LENGTH(fds), 0); if (ret > 0){ /* handle fds[0] ~ wayland events */ if (fds[0].revents & POLLIN){ wayland_did_read = true; wl_display_read_events(ctx.wl_display); wl_display_dispatch_pending(ctx.wl_display); } } /* wayland event read cleanup */ if (wayland_started_read && !wayland_did_read){ wl_display_cancel_read(ctx.wl_display); } } if (ctx.close_signal){ exit_loop = 1; } if (ctx.has_cached_config){ ctx.has_cached_config = 0; libdecor_frame_commit(ctx.w, ctx.h, &ctx.cached_config); } /* (nodocs-wl_egl) */ wl_egl_window_resize(ctx.wl_egl_window, ctx.w, ctx.h, 0, 0); /*~ NOTE: render */ { glDrawBuffer(GL_BACK); glViewport(0, 0, 640, 480); glClearColor(0.40f, 0.90f, 0.15f, 1.f); glClear(GL_COLOR_BUFFER_BIT); } /* (egl) eglSwapBuffers ** " back-buffered window surface, then the color buffer is copied ** (posted) to the native window associated with that surface " */ EGLBoolean swap_success = eglSwapBuffers(ctx.egl_display, ctx.egl_surface); if (!swap_success){ printf("eglSwapBuffers failed\n"); } } /* (1) #Client-classwl__display_1a9150a7e3213a58b469a6966e60a9f108 ** " Close the connection to display " */ if (ctx.wl_display != 0){ wl_display_disconnect(ctx.wl_display); } return(0); } /*libdecor.so, libdecor-gtk.so*/ /* * Copyright © 2012 Collabora, Ltd. * Copyright © 2012 Intel Corporation * Copyright © 2017-2018 Red Hat Inc. * Copyright © 2018 Jonas Ådahl * Copyright © 2021 Christian Rauch * Copyright © 2024 Colin Kinloch * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial * portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ //#include "libdecor.c" static void frame_get_window_size_for(struct libdecor_state *state, int *window_width, int *window_height){ *window_width = state->content_width; *window_height = state->content_height; if (ctx.visible && ctx.decoration_mode == ZXDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE){ Bounds2D border_size = border_size_from_window_state(ctx.frame_window_state); *window_width += border_size.x[0] + border_size.x[1]; *window_height += border_size.y[0] + border_size.y[1]; } } static void frame_set_window_geometry(int32_t w, int32_t h){ Extent2D extent = {0}; extent.w = w; extent.w = h; if (ctx.visible && ctx.decoration_mode == ZXDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE){ Bounds2D border_size = border_size_from_window_state(ctx.frame_window_state); extent.x = -border_size.x[0]; extent.y = -border_size.y[0]; extent.w = w + border_size.x[0] + border_size.x[1]; extent.h = h + border_size.y[0] + border_size.y[1]; } xdg_surface_set_window_geometry(ctx.xdg_surface, extent.x, extent.y, extent.w, extent.h); } bool libdecor_configuration_get_content_size(struct libdecor_configuration *configuration, int *width, int *height){ /* get configured toplevel dimensions */ if (!configuration->has_size) return false; if (configuration->window_width == 0 || configuration->window_height == 0) return false; *width = configuration->window_width; *height = configuration->window_height; if (ctx.visible != 0 && ctx.decoration_mode == ZXDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE){ ctx.frame_window_state = configuration->window_state; if (configuration->has_window_state){ Bounds2D border_size = border_size_from_window_state(configuration->window_state); *width -= border_size.x[0] + border_size.x[1]; *height -= border_size.y[0] + border_size.y[1]; } else{ return false; } } /* constrain content dimensions manually */ if (!(configuration->window_state & LIBDECOR_WINDOW_STATE_NON_FLOATING)) { // TODO(allen): if (ctx.size_bounds.x[0] > 0){ *width = MAX(ctx.size_bounds.x[0], *width); } if (ctx.size_bounds.x[1] > 0){ *width = MIN(*width, ctx.size_bounds.x[1]); } if (ctx.size_bounds.y[0] > 0){ *height = MAX(ctx.size_bounds.y[0], *height); } if (ctx.size_bounds.y[1] > 0){ *height = MIN(*height, ctx.size_bounds.y[1]); } } return true; } void libdecor_frame_set_visibility(bool visible){ ctx.visible = visible; /* enable/disable decorations that are managed by the compositor. * Note that, as of xdg_decoration v1, this is just a hint and there is * no reliable way of disabling all decorations. In practice this should * work but per spec this is not guaranteed. * * See also: https://gitlab.freedesktop.org/wayland/wayland-protocols/-/merge_requests/17 */ if (ctx.decoration_manager != 0 && ctx.toplevel_decoration != 0 && ctx.has_decoration_mode && ctx.decoration_mode == ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE){ zxdg_toplevel_decoration_v1_set_mode(ctx.toplevel_decoration, ctx.visible ? ZXDG_TOPLEVEL_DECORATION_V1_MODE_SERVER_SIDE : ZXDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE); } if (ctx.frame_content_width > 0 && ctx.frame_content_height > 0){ if (ctx.visible != 0 && ctx.decoration_mode == ZXDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE){ libdecor_plugin_gtk_frame_commit(); } else{ libdecor_plugin_gtk_frame_free(); } frame_set_window_geometry(ctx.frame_content_width, ctx.frame_content_height); wl_surface_commit(ctx.wl_surface); } } static enum xdg_toplevel_resize_edge xdg_edge_from_edge(enum libdecor_resize_edge edge){ enum xdg_toplevel_resize_edge result = XDG_TOPLEVEL_RESIZE_EDGE_NONE; switch (edge) { default: case LIBDECOR_RESIZE_EDGE_NONE: break; case LIBDECOR_RESIZE_EDGE_TOP: result = XDG_TOPLEVEL_RESIZE_EDGE_TOP; break; case LIBDECOR_RESIZE_EDGE_BOTTOM: result = XDG_TOPLEVEL_RESIZE_EDGE_BOTTOM; break; case LIBDECOR_RESIZE_EDGE_LEFT: result = XDG_TOPLEVEL_RESIZE_EDGE_LEFT; break; case LIBDECOR_RESIZE_EDGE_TOP_LEFT: result = XDG_TOPLEVEL_RESIZE_EDGE_TOP_LEFT; break; case LIBDECOR_RESIZE_EDGE_BOTTOM_LEFT: result = XDG_TOPLEVEL_RESIZE_EDGE_BOTTOM_LEFT; break; case LIBDECOR_RESIZE_EDGE_RIGHT: result = XDG_TOPLEVEL_RESIZE_EDGE_RIGHT; break; case LIBDECOR_RESIZE_EDGE_TOP_RIGHT: result = XDG_TOPLEVEL_RESIZE_EDGE_TOP_RIGHT; break; case LIBDECOR_RESIZE_EDGE_BOTTOM_RIGHT: result = XDG_TOPLEVEL_RESIZE_EDGE_BOTTOM_RIGHT; break; } return(result); } void libdecor_frame_set_fullscreen(struct wl_output *output){ xdg_toplevel_set_fullscreen(ctx.xdg_toplevel, output); } void libdecor_frame_unset_fullscreen(void){ xdg_toplevel_unset_fullscreen(ctx.xdg_toplevel); } void libdecor_frame_commit(int w, int h, struct libdecor_configuration *configuration){ struct libdecor_state state = {0}; state.content_width = w; state.content_height = h; if (configuration != 0 && configuration->has_window_state){ ctx.frame_window_state = configuration->window_state; state.window_state = configuration->window_state; } else{ state.window_state = ctx.frame_window_state; } ctx.frame_content_width = state.content_width; ctx.frame_content_height = state.content_height; { /* If the frame is configured as non-resizable before the first * configure event is received, we have to manually set the min/max * limits with the configured content size afterwards. */ if (!(ctx.frame_capabilities & LIBDECOR_ACTION_RESIZE)){ ctx.size_bounds.x[0] = ctx.frame_content_width; ctx.size_bounds.y[0] = ctx.frame_content_height; ctx.size_bounds.x[1] = ctx.frame_content_width; ctx.size_bounds.y[1] = ctx.frame_content_height; } if (ctx.size_bounds.x[0] > 0 && ctx.size_bounds.y[0] > 0){ struct libdecor_state state_min; int win_min_width, win_min_height; state_min.content_width = ctx.size_bounds.x[0]; state_min.content_height = ctx.size_bounds.y[0]; state_min.window_state = state.window_state; frame_get_window_size_for(&state_min, &win_min_width, &win_min_height); xdg_toplevel_set_min_size(ctx.xdg_toplevel, win_min_width, win_min_height); } else{ xdg_toplevel_set_min_size(ctx.xdg_toplevel, 0, 0); } if (ctx.size_bounds.x[1] > 0 && ctx.size_bounds.y[1] > 0){ struct libdecor_state state_max; int win_max_width, win_max_height; state_max.content_width = ctx.size_bounds.x[1]; state_max.content_height = ctx.size_bounds.y[1]; state_max.window_state = state.window_state; frame_get_window_size_for(&state_max, &win_max_width, &win_max_height); xdg_toplevel_set_max_size(ctx.xdg_toplevel, win_max_width, win_max_height); } else{ xdg_toplevel_set_max_size(ctx.xdg_toplevel, 0, 0); } } /* switch between decoration modes */ if (ctx.visible && ctx.decoration_mode == ZXDG_TOPLEVEL_DECORATION_V1_MODE_CLIENT_SIDE){ libdecor_plugin_gtk_frame_commit(); } else{ libdecor_plugin_gtk_frame_free(); } frame_set_window_geometry(ctx.frame_content_width, ctx.frame_content_height); if (configuration != 0){ xdg_surface_ack_configure(ctx.xdg_surface, configuration->serial); } } void cleanup(void){ { struct seat *seat, *seat_tmp; wl_list_for_each_safe(seat, seat_tmp, &ctx.seat_list, link) { if (seat->wl_pointer){ wl_pointer_destroy(seat->wl_pointer); } if (seat->wl_touch){ wl_touch_destroy(seat->wl_touch); } wl_surface_destroy(seat->cursor_surface); wl_seat_destroy(seat->wl_seat); if (ctx.cursor_theme != 0){ wl_cursor_theme_destroy(ctx.cursor_theme); } if (seat->name != 0){ free(seat->name); } free(seat); } } if (ctx.wl_shm){ wl_shm_destroy(ctx.wl_shm); } if (ctx.wl_subcompositor != 0){ wl_subcompositor_destroy(ctx.wl_subcompositor); } if (ctx.xdg_wm_base != 0){ xdg_wm_base_destroy(ctx.xdg_wm_base); } if (ctx.decoration_manager != 0){ zxdg_decoration_manager_v1_destroy(ctx.decoration_manager); } } //#include "libdecor-cairo-blur.c" int blur_surface(cairo_surface_t *surface, int margin){ int32_t width, height, stride, x, y, z, w; uint8_t *src, *dst; uint32_t *s, *d, a, p; int i, j, k, size, half; uint32_t kernel[71]; double f; size = ARRAY_LENGTH(kernel); width = cairo_image_surface_get_width(surface); height = cairo_image_surface_get_height(surface); stride = cairo_image_surface_get_stride(surface); src = cairo_image_surface_get_data(surface); dst = malloc(height * stride); if (dst == NULL) return -1; half = size / 2; a = 0; for (i = 0; i < size; i++) { f = (i - half); kernel[i] = exp(- f * f / ARRAY_LENGTH(kernel)) * 10000; a += kernel[i]; } for (i = 0; i < height; i++) { s = (uint32_t *) (src + i * stride); d = (uint32_t *) (dst + i * stride); for (j = 0; j < width; j++) { if (margin < j && j < width - margin) { d[j] = s[j]; continue; } x = 0; y = 0; z = 0; w = 0; for (k = 0; k < size; k++) { if (j - half + k < 0 || j - half + k >= width) continue; p = s[j - half + k]; x += (p >> 24) * kernel[k]; y += ((p >> 16) & 0xff) * kernel[k]; z += ((p >> 8) & 0xff) * kernel[k]; w += (p & 0xff) * kernel[k]; } d[j] = (x / a << 24) | (y / a << 16) | (z / a << 8) | w / a; } } for (i = 0; i < height; i++) { s = (uint32_t *) (dst + i * stride); d = (uint32_t *) (src + i * stride); for (j = 0; j < width; j++) { if (margin <= i && i < height - margin) { d[j] = s[j]; continue; } x = 0; y = 0; z = 0; w = 0; for (k = 0; k < size; k++) { if (i - half + k < 0 || i - half + k >= height) continue; s = (uint32_t *) (dst + (i - half + k) * stride); p = s[j]; x += (p >> 24) * kernel[k]; y += ((p >> 16) & 0xff) * kernel[k]; z += ((p >> 8) & 0xff) * kernel[k]; w += (p & 0xff) * kernel[k]; } d[j] = (x / a << 24) | (y / a << 16) | (z / a << 8) | w / a; } } free(dst); cairo_surface_mark_dirty(surface); return 0; } void render_shadow(cairo_t *cr, cairo_surface_t *surface, int x, int y, int width, int height, int margin, int top_margin){ cairo_pattern_t *pattern; cairo_matrix_t matrix; int i, fx, fy, shadow_height, shadow_width; cairo_set_source_rgba(cr, 0, 0, 0, 0.45); cairo_set_operator(cr, CAIRO_OPERATOR_OVER); pattern = cairo_pattern_create_for_surface (surface); cairo_pattern_set_filter(pattern, CAIRO_FILTER_NEAREST); for (i = 0; i < 4; i++) { /* when fy is set, then we are working with lower corners, * when fx is set, then we are working with right corners * * 00 ------- 01 * | | * | | * 10 ------- 11 */ fx = i & 1; fy = i >> 1; cairo_matrix_init_translate(&matrix, -x + fx * (128 - width), -y + fy * (128 - height)); cairo_pattern_set_matrix(pattern, &matrix); shadow_width = margin; shadow_height = fy ? margin : top_margin; /* if the shadows together are greater than the surface, we need * to fix it - set the shadow size to the half of * the size of surface. Also handle the case when the size is * not divisible by 2. In that case we need one part of the * shadow to be one pixel greater. !fy or !fx, respectively, * will do the work. */ if (height < 2 * shadow_height) shadow_height = (height + !fy) / 2; if (width < 2 * shadow_width) shadow_width = (width + !fx) / 2; cairo_reset_clip(cr); cairo_rectangle(cr, x + fx * (width - shadow_width), y + fy * (height - shadow_height), shadow_width, shadow_height); cairo_clip (cr); cairo_mask(cr, pattern); } shadow_width = width - 2 * margin; shadow_height = top_margin; if (height < 2 * shadow_height) shadow_height = height / 2; if (shadow_width > 0 && shadow_height) { /* Top stretch */ cairo_matrix_init_translate(&matrix, 60, 0); cairo_matrix_scale(&matrix, 8.0 / width, 1); cairo_matrix_translate(&matrix, -x - width / 2, -y); cairo_pattern_set_matrix(pattern, &matrix); cairo_rectangle(cr, x + margin, y, shadow_width, shadow_height); cairo_reset_clip(cr); cairo_rectangle(cr, x + margin, y, shadow_width, shadow_height); cairo_clip (cr); cairo_mask(cr, pattern); /* Bottom stretch */ cairo_matrix_translate(&matrix, 0, -height + 128); cairo_pattern_set_matrix(pattern, &matrix); cairo_reset_clip(cr); cairo_rectangle(cr, x + margin, y + height - margin, shadow_width, margin); cairo_clip (cr); cairo_mask(cr, pattern); } shadow_width = margin; if (width < 2 * shadow_width) shadow_width = width / 2; shadow_height = height - margin - top_margin; /* if height is smaller than sum of margins, * then the shadow is already done by the corners */ if (shadow_height > 0 && shadow_width) { /* Left stretch */ cairo_matrix_init_translate(&matrix, 0, 60); cairo_matrix_scale(&matrix, 1, 8.0 / height); cairo_matrix_translate(&matrix, -x, -y - height / 2); cairo_pattern_set_matrix(pattern, &matrix); cairo_reset_clip(cr); cairo_rectangle(cr, x, y + top_margin, shadow_width, shadow_height); cairo_clip (cr); cairo_mask(cr, pattern); /* Right stretch */ cairo_matrix_translate(&matrix, -width + 128, 0); cairo_pattern_set_matrix(pattern, &matrix); cairo_rectangle(cr, x + width - shadow_width, y + top_margin, shadow_width, shadow_height); cairo_reset_clip(cr); cairo_clip (cr); cairo_mask(cr, pattern); } cairo_pattern_destroy(pattern); cairo_reset_clip(cr); } //#include "os-compatibility.c" #ifndef HAVE_MKOSTEMP static int set_cloexec_or_close(int fd) { long flags; if (fd == -1) return -1; flags = fcntl(fd, F_GETFD); if (flags == -1) goto err; if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) == -1) goto err; return fd; err: close(fd); return -1; } #endif static int create_tmpfile_cloexec(char *tmpname) { int fd; #ifdef HAVE_MKOSTEMP fd = mkostemp(tmpname, O_CLOEXEC); if (fd >= 0) unlink(tmpname); #else fd = mkstemp(tmpname); if (fd >= 0) { fd = set_cloexec_or_close(fd); unlink(tmpname); } #endif return fd; } static int os_resize_anonymous_file(int fd, off_t size) { #ifdef HAVE_POSIX_FALLOCATE sigset_t mask; sigset_t old_mask; /* posix_fallocate() might be interrupted, so we need to check * for EINTR and retry in that case. * However, in the presence of an alarm, the interrupt may trigger * repeatedly and prevent a large posix_fallocate() to ever complete * successfully, so we need to first block SIGALRM to prevent * this. */ sigemptyset(&mask); sigaddset(&mask, SIGALRM); sigprocmask(SIG_BLOCK, &mask, &old_mask); /* * Filesystems that do not support fallocate will return EINVAL or * EOPNOTSUPP. In this case we need to fall back to ftruncate */ do { errno = posix_fallocate(fd, 0, size); } while (errno == EINTR); sigprocmask(SIG_SETMASK, &old_mask, NULL); if (errno == 0) return 0; else if (errno != EINVAL && errno != EOPNOTSUPP) return -1; #endif if (ftruncate(fd, size) < 0) return -1; return 0; } /* * Create a new, unique, anonymous file of the given size, and * return the file descriptor for it. The file descriptor is set * CLOEXEC. The file is immediately suitable for mmap()'ing * the given size at offset zero. * * The file should not have a permanent backing store like a disk, * but may have if XDG_RUNTIME_DIR is not properly implemented in OS. * * The file name is deleted from the file system. * * The file is suitable for buffer sharing between processes by * transmitting the file descriptor over Unix sockets using the * SCM_RIGHTS methods. * * If the C library implements posix_fallocate(), it is used to * guarantee that disk space is available for the file at the * given size. If disk space is insufficient, errno is set to ENOSPC. * If posix_fallocate() is not supported, program may receive * SIGBUS on accessing mmap()'ed file contents instead. * * If the C library implements memfd_create(), it is used to create the * file purely in memory, without any backing file name on the file * system, and then sealing off the possibility of shrinking it. This * can then be checked before accessing mmap()'ed file contents, to * make sure SIGBUS can't happen. It also avoids requiring * XDG_RUNTIME_DIR. */ int libdecor_os_create_anonymous_file(off_t size){ static const char template[] = "/libdecor-shared-XXXXXX"; const char *path; char *name; int fd; #ifdef HAVE_MEMFD_CREATE fd = memfd_create("libdecor", MFD_CLOEXEC | MFD_ALLOW_SEALING); if (fd >= 0) { /* We can add this seal before calling posix_fallocate(), as * the file is currently zero-sized anyway. * * There is also no need to check for the return value, we * couldn't do anything with it anyway. */ fcntl(fd, F_ADD_SEALS, F_SEAL_SHRINK | F_SEAL_SEAL); } else #endif { path = getenv("XDG_RUNTIME_DIR"); if (!path) { errno = ENOENT; return -1; } name = malloc(strlen(path) + sizeof(template)); if (!name) return -1; strcpy(name, path); strcat(name, template); fd = create_tmpfile_cloexec(name); free(name); if (fd < 0) return -1; } if (os_resize_anonymous_file(fd, size) < 0) { close(fd); return -1; } return fd; } //#include "plugins/gtk/libdecor-gtk.c" static void gtk_fill_widget_from_name(GtkWidget *widget, void *data){ bool match = false; if (GTK_IS_WIDGET(widget)){ struct header_element_data *elem = data; GtkStyleContext *style_context = gtk_widget_get_style_context(widget); char *style_ctx = gtk_style_context_to_string(style_context, GTK_STYLE_CONTEXT_PRINT_SHOW_STYLE); if (strstr(style_ctx, elem->name) != 0){ elem->widget = widget; match = true; } free(style_ctx); } /* recursively traverse container */ if (!match && GTK_IS_CONTAINER(widget)){ gtk_container_forall(GTK_CONTAINER(widget), >k_fill_widget_from_name, data); } } static struct header_element_data find_widget_by_type(GtkWidget *widget, enum header_element type){ char* name = 0; switch (type){ case HEADER_FULL: name = "headerbar.titlebar:"; break; case HEADER_TITLE: name = "label.title:"; break; case HEADER_MIN: name = ".minimize"; break; case HEADER_MAX: name = ".maximize"; break; case HEADER_CLOSE: name = ".close"; break; default:break; } struct header_element_data data = {0}; data.name = name; data.type = type; gtk_fill_widget_from_name(widget, &data); return(data); } static struct header_element_data get_header_focus(const GtkHeaderBar *header_bar, int x, int y){ static const enum header_element elems[] = { HEADER_TITLE, HEADER_MIN, HEADER_MAX, HEADER_CLOSE }; struct header_element_data result = {0}; for (size_t i = 0; i < ARRAY_LENGTH(elems); i += 1){ struct header_element_data elem = find_widget_by_type(GTK_WIDGET(header_bar), elems[i]); if (elem.widget){ GtkAllocation allocation; gtk_widget_get_allocation(GTK_WIDGET(elem.widget), &allocation); if (allocation.x <= x && x < allocation.x + allocation.width && allocation.y <= y && y < allocation.y + allocation.height){ result = elem; break; } } } return(result); } static bool own_proxy(void *proxy){ bool result = false; if (proxy != 0){ result = (wl_proxy_get_tag((struct wl_proxy*)proxy) == &libdecor_gtk_proxy_tag); } return(result); } static void toggle_maximized(void){ if (ctx.frame_window_state & LIBDECOR_WINDOW_STATE_MAXIMIZED){ xdg_toplevel_unset_maximized(ctx.xdg_toplevel); } else{ xdg_toplevel_set_maximized(ctx.xdg_toplevel); } } static void buffer_release(void *user_data, struct wl_buffer *wl_buffer){ struct buffer *buffer = user_data; if (buffer->is_detached){ buffer_free(buffer); } else{ buffer->in_use = false; } } const struct wl_buffer_listener buffer_listener = { buffer_release }; static void buffer_free(struct buffer *buffer){ if (buffer->wl_buffer) { wl_buffer_destroy(buffer->wl_buffer); munmap(buffer->data, buffer->data_size); buffer->wl_buffer = NULL; buffer->in_use = false; } free(buffer); } static void free_border_component(struct border_component *border_component){ if (border_component->wl_surface) { wl_subsurface_destroy(border_component->wl_subsurface); border_component->wl_subsurface = NULL; wl_surface_destroy(border_component->wl_surface); border_component->wl_surface = NULL; } if (border_component->buffer) { buffer_free(border_component->buffer); border_component->buffer = NULL; } } static void libdecor_plugin_gtk_frame_free(void){ g_clear_pointer(&ctx.header, gtk_widget_destroy); g_clear_pointer(&ctx.window, gtk_widget_destroy); free_border_component(&ctx.component_slot[COMPONENT_SLOT_HEADER]); free_border_component(&ctx.component_slot[COMPONENT_SLOT_SHADOW]); ctx.shadow_showing = false; g_clear_pointer(&ctx.shadow_blur, cairo_surface_destroy); g_clear_pointer(&ctx.title, free); ctx.decoration_type = DECORATION_TYPE_NONE; } static void hide_border_component(struct border_component *border_component){ if (border_component->wl_surface){ wl_surface_attach(border_component->wl_surface, 0, 0, 0); wl_surface_commit(border_component->wl_surface); } } static enum component_slot component_slot_from_wl_surface(const struct wl_surface *surface){ enum component_slot result = 0; for (int i = 1; i < COMPONENT_SLOT_COUNT; i += 1){ if (ctx.component_slot[i].wl_surface == surface){ result = i; break; } } return(result); } static void ensure_component(struct border_component *cmpnt){ if (cmpnt->wl_surface == 0){ cmpnt->wl_surface = wl_compositor_create_surface(ctx.wl_compositor); wl_proxy_set_tag((struct wl_proxy *)cmpnt->wl_surface, &libdecor_gtk_proxy_tag); cmpnt->wl_subsurface = wl_subcompositor_get_subsurface(ctx.wl_subcompositor, cmpnt->wl_surface, ctx.wl_surface); } } static void ensure_title_bar_surfaces(void){ GtkStyleContext *context_hdr; ctx.component_slot[COMPONENT_SLOT_HEADER].slot = COMPONENT_SLOT_HEADER; ctx.component_slot[COMPONENT_SLOT_HEADER].opaque = false; ensure_component(&ctx.component_slot[COMPONENT_SLOT_HEADER]); if (ctx.component_slot[COMPONENT_SLOT_SHADOW].wl_surface){ wl_subsurface_place_above(ctx.component_slot[COMPONENT_SLOT_HEADER].wl_subsurface, ctx.component_slot[COMPONENT_SLOT_SHADOW].wl_surface); } if (GTK_IS_WIDGET(ctx.header)){ gtk_widget_destroy(ctx.header); ctx.header = 0; } if (GTK_IS_WIDGET(ctx.window)){ gtk_widget_destroy(ctx.window); ctx.window = 0; } ctx.window = gtk_offscreen_window_new(); ctx.header = gtk_header_bar_new(); g_object_get(gtk_widget_get_settings(ctx.window), "gtk-double-click-time", &ctx.double_click_time_ms, "gtk-dnd-drag-threshold", &ctx.drag_threshold, NULL); g_object_set(ctx.header, "title", ctx.title, "has-subtitle", FALSE, "show-close-button", TRUE, NULL); context_hdr = gtk_widget_get_style_context(ctx.header); gtk_style_context_add_class(context_hdr, GTK_STYLE_CLASS_TITLEBAR); gtk_style_context_add_class(context_hdr, "default-decoration"); gtk_window_set_titlebar(GTK_WINDOW(ctx.window), ctx.header); gtk_header_bar_set_show_close_button(GTK_HEADER_BAR(ctx.header), TRUE); gtk_window_set_resizable(GTK_WINDOW(ctx.window), (ctx.frame_capabilities & LIBDECOR_ACTION_RESIZE) != 0); } static Extent2D extent2d_from_component_type(enum component_slot slot){ Extent2D result = {0}; int width = ctx.frame_content_width; int height = ctx.frame_content_height; int title_height = 0; if (GTK_IS_WIDGET(ctx.header)){ title_height = gtk_widget_get_allocated_height(ctx.header); } switch (slot){ default: case COMPONENT_SLOT_NONE: break; case COMPONENT_SLOT_SHADOW: { result.x = -(int)SHADOW_MARGIN; result.y = -(int)(SHADOW_MARGIN + title_height); result.w = width + 2*SHADOW_MARGIN; result.h = title_height + height + 2*SHADOW_MARGIN; }break; case COMPONENT_SLOT_HEADER: { result.x = 0; result.y = -title_height; result.w = gtk_widget_get_allocated_width(ctx.header); result.h = title_height; }break; } return(result); } static void array_append(enum header_element **array, size_t *n, enum header_element item){ (*n)++; *array = realloc(*array, (*n) * sizeof (enum header_element)); (*array)[(*n)-1] = item; } static void draw_header_button(cairo_t *cr, cairo_surface_t *surface, enum header_element button_type){ struct header_element_data elem; GtkWidget *button; GtkStyleContext* button_style; GtkStateFlags style_state; GtkAllocation allocation; gchar *icon_name; int scale; GtkWidget *icon_widget; GtkAllocation allocation_icon; GtkIconInfo* icon_info; double sx, sy; gint icon_width, icon_height; GdkPixbuf* icon_pixbuf; cairo_surface_t* icon_surface; gint width = 0, height = 0; gint left = 0, top = 0, right = 0, bottom = 0; GtkBorder border; GtkBorder padding; elem = find_widget_by_type(ctx.header, button_type); button = elem.widget; if (button){ button_style = gtk_widget_get_style_context(button); style_state = elem.state; /* change style based on window state and focus */ if (!(ctx.frame_window_state & LIBDECOR_WINDOW_STATE_ACTIVE)) { style_state |= GTK_STATE_FLAG_BACKDROP; } if (ctx.hdr_focus.widget == button) { style_state |= GTK_STATE_FLAG_PRELIGHT; if (ctx.hdr_focus.state & GTK_STATE_FLAG_ACTIVE) { style_state |= GTK_STATE_FLAG_ACTIVE; } } /* background */ gtk_widget_get_clip(button, &allocation); gtk_style_context_save(button_style); gtk_style_context_set_state(button_style, style_state); gtk_render_background(button_style, cr, allocation.x, allocation.y, allocation.width, allocation.height); gtk_render_frame(button_style, cr, allocation.x, allocation.y, allocation.width, allocation.height); gtk_style_context_restore(button_style); /* symbol */ switch (button_type) { case HEADER_MIN: { icon_name = "window-minimize-symbolic"; }break; case HEADER_MAX:{ icon_name = (ctx.frame_window_state & LIBDECOR_WINDOW_STATE_MAXIMIZED) ? "window-restore-symbolic" : "window-maximize-symbolic"; }break; case HEADER_CLOSE: { icon_name = "window-close-symbolic"; }break; default: { icon_name = NULL; }break; } /* get scale */ cairo_surface_get_device_scale(surface, &sx, &sy); scale = (sx+sy) / 2.0; /* get original icon dimensions */ icon_widget = gtk_bin_get_child(GTK_BIN(button)); gtk_widget_get_allocation(icon_widget, &allocation_icon); /* icon info */ if (!gtk_icon_size_lookup(GTK_ICON_SIZE_MENU, &icon_width, &icon_height)) { icon_width = 16; icon_height = 16; } icon_info = gtk_icon_theme_lookup_icon_for_scale(gtk_icon_theme_get_default(), icon_name, icon_width, scale, (GtkIconLookupFlags)0); /* icon pixel buffer*/ gtk_style_context_save(button_style); gtk_style_context_set_state(button_style, style_state); icon_pixbuf = gtk_icon_info_load_symbolic_for_context( icon_info, button_style, NULL, NULL); icon_surface = gdk_cairo_surface_create_from_pixbuf(icon_pixbuf, scale, NULL); gtk_style_context_restore(button_style); /* dimensions and position */ gtk_style_context_get(button_style, gtk_style_context_get_state(button_style), "min-width", &width, "min-height", &height, NULL); if (width < icon_width){ width = icon_width; } if (height < icon_height){ height = icon_height; } gtk_style_context_get_border(button_style, gtk_style_context_get_state(button_style), &border); left += border.left; right += border.right; top += border.top; bottom += border.bottom; gtk_style_context_get_padding(button_style, gtk_style_context_get_state(button_style), &padding); left += padding.left; right += padding.right; top += padding.top; bottom += padding.bottom; width += left + right; height += top + bottom; gtk_render_icon_surface(gtk_widget_get_style_context(icon_widget), cr, icon_surface, allocation.x + ((width - icon_width) / 2), allocation.y + ((height - icon_height) / 2)); cairo_paint(cr); cairo_surface_destroy(icon_surface); g_object_unref(icon_pixbuf); } } static void set_component_input_region(struct border_component *border_component){ if (border_component->slot == COMPONENT_SLOT_SHADOW && ctx.shadow_showing){ struct wl_region *input_region; Extent2D extent = extent2d_from_component_type(border_component->slot); /* * the input region is the outer surface size minus the inner * content size */ input_region = wl_compositor_create_region(ctx.wl_compositor); wl_region_add(input_region, 0, 0, extent.w, extent.h); wl_region_subtract(input_region, -extent.x, -extent.y, ctx.frame_content_width, ctx.frame_content_height); wl_surface_set_input_region(border_component->wl_surface, input_region); wl_region_destroy(input_region); } } static void draw_border_component(struct border_component *border_component){ struct buffer *old_buffer; struct buffer *buffer = 0; if (border_component->wl_surface != 0){ Extent2D extent = extent2d_from_component_type(border_component->slot); set_component_input_region(border_component); old_buffer = border_component->buffer; if (old_buffer != 0){ if (!old_buffer->in_use && old_buffer->buffer_width == extent.w && old_buffer->buffer_height == extent.h){ buffer = old_buffer; } else{ buffer_free(old_buffer); border_component->buffer = 0; } } if (buffer == 0){ int width = extent.w; int height = extent.h; bool opaque = border_component->opaque; struct wl_shm_pool *pool; int fd, size, buffer_width, buffer_height, stride; void *data; enum wl_shm_format buf_fmt; buffer_width = width; buffer_height = height; stride = buffer_width * 4; size = stride * buffer_height; fd = libdecor_os_create_anonymous_file(size); if (fd >= 0){ data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); if (data != MAP_FAILED){ buf_fmt = opaque ? WL_SHM_FORMAT_XRGB8888 : WL_SHM_FORMAT_ARGB8888; pool = wl_shm_create_pool(ctx.wl_shm, fd, size); buffer = calloc(1, sizeof *buffer); buffer->wl_buffer = wl_shm_pool_create_buffer(pool, 0, buffer_width, buffer_height, stride, buf_fmt); wl_buffer_add_listener(buffer->wl_buffer, &buffer_listener, buffer); wl_shm_pool_destroy(pool); buffer->data = data; buffer->data_size = size; buffer->width = width; buffer->height = height; buffer->buffer_width = buffer_width; buffer->buffer_height = buffer_height; } close(fd); } } memset(buffer->data, 0, buffer->data_size); { int stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, buffer->buffer_width); cairo_surface_t *surface = cairo_image_surface_create_for_data(buffer->data, CAIRO_FORMAT_ARGB32, buffer->buffer_width, buffer->buffer_height, stride); cairo_t *cr = cairo_create(surface); cairo_surface_set_device_scale(surface, 1, 1); switch (border_component->slot){ default: case COMPONENT_SLOT_NONE: break; case COMPONENT_SLOT_SHADOW: { render_shadow(cr, ctx.shadow_blur, -(int)SHADOW_MARGIN/2, -(int)SHADOW_MARGIN/2, buffer->width + SHADOW_MARGIN, buffer->height + SHADOW_MARGIN, 64, 64); cairo_set_operator(cr, CAIRO_OPERATOR_CLEAR); cairo_rectangle(cr, -extent.x, -extent.y, ctx.frame_content_width, ctx.frame_content_height); cairo_fill(cr); }break; case COMPONENT_SLOT_HEADER: { /* background */ { GtkAllocation allocation; GtkStyleContext* style; gtk_widget_get_allocation(GTK_WIDGET(ctx.header), &allocation); style = gtk_widget_get_style_context(ctx.header); gtk_render_background(style, cr, allocation.x, allocation.y, allocation.width, allocation.height); } /* title */ { GtkWidget *label; GtkAllocation allocation; cairo_surface_t *label_surface = NULL; cairo_t *cr; label = find_widget_by_type(ctx.header, HEADER_TITLE).widget; gtk_widget_get_allocation(label, &allocation); label_surface = cairo_surface_create_for_rectangle(surface, allocation.x, allocation.y, allocation.width, allocation.height); cr = cairo_create(label_surface); gtk_widget_size_allocate(label, &allocation); gtk_widget_draw(label, cr); cairo_destroy(cr); cairo_surface_destroy(label_surface); } /* buttons */ { enum header_element buttons[3] = {0}; size_t nbuttons = 0; if ((ctx.frame_capabilities & LIBDECOR_ACTION_MINIMIZE)){ buttons[nbuttons] = HEADER_MIN; nbuttons += 1; } if ((ctx.frame_capabilities & LIBDECOR_ACTION_RESIZE)){ buttons[nbuttons] = HEADER_MAX; nbuttons += 1; } if ((ctx.frame_capabilities & LIBDECOR_ACTION_CLOSE)){ buttons[nbuttons] = HEADER_CLOSE; nbuttons += 1; } for (size_t i = 0; i < nbuttons; i += 1){ enum header_element button_type = buttons[i]; draw_header_button(cr, surface, button_type); } } }break; } cairo_destroy(cr); cairo_surface_destroy(surface); } wl_surface_attach(border_component->wl_surface, buffer->wl_buffer, 0, 0); wl_surface_set_buffer_scale(border_component->wl_surface, 1); buffer->in_use = true; wl_surface_commit(border_component->wl_surface); wl_surface_damage_buffer(border_component->wl_surface, 0, 0, extent.w, extent.h); wl_subsurface_set_position(border_component->wl_subsurface, extent.x, extent.y); border_component->buffer = buffer; } } static void draw_title_bar(void){ GtkAllocation allocation = {0, 0, ctx.gtk_content_width, 0}; enum libdecor_window_state state; GtkStyleContext *style; int pref_width; int W, H; state = ctx.frame_window_state; style = gtk_widget_get_style_context(ctx.window); if (!(state & LIBDECOR_WINDOW_STATE_ACTIVE)){ gtk_widget_set_state_flags(ctx.window, GTK_STATE_FLAG_BACKDROP, true); } else{ gtk_widget_unset_state_flags(ctx.window, GTK_STATE_FLAG_BACKDROP); } if (!(ctx.frame_window_state & LIBDECOR_WINDOW_STATE_NON_FLOATING)){ gtk_style_context_remove_class(style, "maximized"); } else{ gtk_style_context_add_class(style, "maximized"); } gtk_widget_show_all(ctx.window); /* set default width, using an empty title to estimate its smallest admissible value */ gtk_header_bar_set_title(GTK_HEADER_BAR(ctx.header), ""); gtk_widget_get_preferred_width(ctx.header, NULL, &pref_width); gtk_header_bar_set_title(GTK_HEADER_BAR(ctx.header), ctx.title); if (ctx.size_bounds.x[0] < pref_width){ ctx.size_bounds.x[0] = pref_width; } if (ctx.size_bounds.x[1] != 0 && ctx.size_bounds.x[1] < ctx.size_bounds.x[0]){ ctx.size_bounds.x[1] = ctx.size_bounds.x[0]; } W = ctx.frame_content_width; H = ctx.frame_content_height; if (W < ctx.size_bounds.x[0]){ W = ctx.size_bounds.x[0]; libdecor_frame_commit(W, H, NULL); } else{ /* set default height */ gtk_widget_get_preferred_height(ctx.header, 0, &allocation.height); gtk_widget_size_allocate(ctx.header, &allocation); draw_border_component(&ctx.component_slot[COMPONENT_SLOT_HEADER]); } } static void draw_decoration(void){ switch (ctx.decoration_type){ case DECORATION_TYPE_NONE: { hide_border_component(&ctx.component_slot[COMPONENT_SLOT_SHADOW]); ctx.shadow_showing = false; hide_border_component(&ctx.component_slot[COMPONENT_SLOT_HEADER]); }break; case DECORATION_TYPE_ALL: { ctx.component_slot[COMPONENT_SLOT_SHADOW].slot = COMPONENT_SLOT_SHADOW; ctx.component_slot[COMPONENT_SLOT_SHADOW].opaque = false; ensure_component(&ctx.component_slot[COMPONENT_SLOT_SHADOW]); draw_border_component(&ctx.component_slot[COMPONENT_SLOT_SHADOW]); ctx.shadow_showing = true; ensure_title_bar_surfaces(); draw_title_bar(); }break; case DECORATION_TYPE_TITLE_ONLY: { hide_border_component(&ctx.component_slot[COMPONENT_SLOT_SHADOW]); ctx.shadow_showing = false; ensure_title_bar_surfaces(); draw_title_bar(); }break; } } static enum decoration_type decoration_type_from_window_state(enum libdecor_window_state window_state){ enum decoration_type result = DECORATION_TYPE_ALL; if (window_state & LIBDECOR_WINDOW_STATE_FULLSCREEN){ result = DECORATION_TYPE_NONE; } else if (window_state & (LIBDECOR_WINDOW_STATE_MAXIMIZED | LIBDECOR_WINDOW_STATE_TILED_LEFT | LIBDECOR_WINDOW_STATE_TILED_RIGHT | LIBDECOR_WINDOW_STATE_TILED_TOP | LIBDECOR_WINDOW_STATE_TILED_BOTTOM)){ result = DECORATION_TYPE_TITLE_ONLY; } return(result); } static void libdecor_plugin_gtk_frame_commit(void){ enum libdecor_window_state old_window_state; enum libdecor_window_state new_window_state; int old_content_width, old_content_height; int new_content_width, new_content_height; enum decoration_type old_decoration_type; enum decoration_type new_decoration_type; old_window_state = ctx.gtk_window_state; new_window_state = ctx.frame_window_state; old_content_width = ctx.gtk_content_width; old_content_height = ctx.gtk_content_height; new_content_width = ctx.frame_content_width; new_content_height = ctx.frame_content_height; old_decoration_type = ctx.decoration_type; new_decoration_type = decoration_type_from_window_state(new_window_state); if (old_decoration_type != new_decoration_type || old_content_width != new_content_width || old_content_height != new_content_height || old_window_state != new_window_state){ ctx.gtk_content_width = new_content_width; ctx.gtk_content_height = new_content_height; ctx.gtk_window_state = new_window_state; ctx.decoration_type = new_decoration_type; draw_decoration(); /* set fixed window size */ if (!(ctx.frame_capabilities & LIBDECOR_ACTION_RESIZE)){ ctx.size_bounds.x[0] = ctx.gtk_content_width; ctx.size_bounds.y[0] = ctx.gtk_content_height; ctx.size_bounds.x[1] = ctx.gtk_content_width; ctx.size_bounds.y[1] = ctx.gtk_content_height; } } } static Bounds2D border_size_from_window_state(enum libdecor_window_state window_state){ Bounds2D border_size = {0}; switch (decoration_type_from_window_state(window_state)) { case DECORATION_TYPE_NONE: break; case DECORATION_TYPE_ALL: { ctx.component_slot[COMPONENT_SLOT_SHADOW].slot = COMPONENT_SLOT_SHADOW; ctx.component_slot[COMPONENT_SLOT_SHADOW].opaque = false; ensure_component(&ctx.component_slot[COMPONENT_SLOT_SHADOW]); } G_GNUC_FALLTHROUGH; case DECORATION_TYPE_TITLE_ONLY: { if (ctx.header == 0){ ensure_title_bar_surfaces(); } gtk_widget_show_all(ctx.window); gtk_widget_get_preferred_height(ctx.header, 0, &border_size.y[0]); }break; } return(border_size); } enum libdecor_resize_edge edge_from_pos(int x, int y){ static const enum libdecor_resize_edge box[9] = { LIBDECOR_RESIZE_EDGE_TOP_LEFT , LIBDECOR_RESIZE_EDGE_TOP , LIBDECOR_RESIZE_EDGE_TOP_RIGHT , LIBDECOR_RESIZE_EDGE_LEFT, LIBDECOR_RESIZE_EDGE_NONE , LIBDECOR_RESIZE_EDGE_RIGHT , LIBDECOR_RESIZE_EDGE_BOTTOM_LEFT, LIBDECOR_RESIZE_EDGE_BOTTOM, LIBDECOR_RESIZE_EDGE_BOTTOM_RIGHT, }; enum libdecor_resize_edge result = 0; struct buffer *buffer = ctx.component_slot[COMPONENT_SLOT_SHADOW].buffer; if (buffer != 0){ int w = buffer->width; int h = buffer->height; int top = (y < 2*SHADOW_MARGIN); int bottom = (!top && y > (h - 2*SHADOW_MARGIN)); int left = (x < 2*SHADOW_MARGIN); int right = (!left && x > (w - 2*SHADOW_MARGIN)); int i = 4 + 3*(bottom - top) + (right - left); result = box[i]; } return(result); } static struct wl_cursor * wl_cursor_from_pos(int x, int y){ struct wl_cursor *result = ctx.cursor_left_ptr; if (ctx.active == COMPONENT_SLOT_SHADOW && (ctx.frame_capabilities & LIBDECOR_ACTION_RESIZE)){ enum libdecor_resize_edge edge = edge_from_pos(x, y); if (edge != LIBDECOR_RESIZE_EDGE_NONE){ result = ctx.cursors[edge - 1]; } } return(result); } static void update_touch_focus(struct seat *seat, wl_fixed_t x, wl_fixed_t y){ if (GTK_IS_WIDGET(ctx.header) && ctx.touch_active == COMPONENT_SLOT_HEADER){ struct header_element_data new_focus = get_header_focus(GTK_HEADER_BAR(ctx.header), wl_fixed_to_int(x), wl_fixed_to_int(y)); if (ctx.hdr_focus.widget != new_focus.widget){ ctx.hdr_focus = new_focus; } ctx.hdr_focus.state |= GTK_STATE_FLAG_PRELIGHT; draw_title_bar(); wl_surface_commit(ctx.wl_surface); } else{ ctx.hdr_focus.type = HEADER_NONE; } } //#include "desktop-settings.c" static bool get_cursor_settings_from_env(char **theme, int *size){ char *env_xtheme = getenv("XCURSOR_THEME"); char *env_xsize = getenv("XCURSOR_SIZE"); bool got_theme = (env_xtheme != 0 && env_xsize != 0); if (got_theme){ *theme = strdup(env_xtheme); *size = atoi(env_xsize); } return(got_theme); } #ifdef HAS_DBUS #include static DBusMessage * get_setting_sync(DBusConnection *const connection, const char *key, const char *value){ DBusMessage *reply = 0; DBusMessage *message; message = dbus_message_new_method_call("org.freedesktop.portal.Desktop", "/org/freedesktop/portal/desktop", "org.freedesktop.portal.Settings", "Read"); if (message != 0){ dbus_bool_t success = dbus_message_append_args(message, DBUS_TYPE_STRING, &key, DBUS_TYPE_STRING, &value, DBUS_TYPE_INVALID); if (success){ DBusError error; dbus_error_init(&error); reply = dbus_connection_send_with_reply_and_block(connection, message, DBUS_TIMEOUT_USE_DEFAULT, &error); if (dbus_error_is_set(&error) && reply != 0){ dbus_message_unref(reply); reply = 0; } dbus_error_free(&error); } dbus_message_unref(message); } return(reply); } static bool parse_type(DBusMessage *const reply, const int type, void *value){ bool result = false; DBusMessageIter iter[3]; dbus_message_iter_init(reply, &iter[0]); if (dbus_message_iter_get_arg_type(&iter[0]) == DBUS_TYPE_VARIANT){ dbus_message_iter_recurse(&iter[0], &iter[1]); if (dbus_message_iter_get_arg_type(&iter[1]) == DBUS_TYPE_VARIANT){ dbus_message_iter_recurse(&iter[1], &iter[2]); if (dbus_message_iter_get_arg_type(&iter[2]) == type){ dbus_message_iter_get_basic(&iter[2], value); result = true; } } } return(result); } bool libdecor_get_cursor_settings(char **theme, int *size){ static const char name[] = "org.gnome.desktop.interface"; static const char key_theme[] = "cursor-theme"; static const char key_size[] = "cursor-size"; bool got_theme = false; const char *value_theme = 0; DBusError error; DBusConnection *connection; dbus_error_init(&error); connection = dbus_bus_get(DBUS_BUS_SESSION, &error); if (!dbus_error_is_set(&error)){ DBusMessage *reply = get_setting_sync(connection, name, key_theme); if (reply != 0){ if (parse_type(reply, DBUS_TYPE_STRING, &value_theme)) { *theme = strdup(value_theme); } dbus_message_unref(reply); } } if (value_theme != 0){ DBusMessage *reply = get_setting_sync(connection, name, key_size); if (reply){ if (parse_type(reply, DBUS_TYPE_INT32, size)){ got_theme = true; } dbus_message_unref(reply); } } if (!got_theme){ got_theme = get_cursor_settings_from_env(theme, size); } return(got_theme); } enum libdecor_color_scheme libdecor_get_color_scheme(){ static const char name[] = "org.freedesktop.appearance"; static const char key_color_scheme[] = "color-scheme"; uint32_t color = 0; DBusError error; DBusConnection *connection; DBusMessage *reply; dbus_error_init(&error); connection = dbus_bus_get(DBUS_BUS_SESSION, &error); if (!dbus_error_is_set(&error)){ reply = get_setting_sync(connection, name, key_color_scheme); if (reply){ if (!parse_type(reply, DBUS_TYPE_UINT32, &color)) { color = 0; } dbus_message_unref(reply); } } return(color); } #else bool libdecor_get_cursor_settings(char **theme, int *size){ return(get_cursor_settings_from_env(theme, size)); } uint32_t libdecor_get_color_scheme(){ return(LIBDECOR_COLOR_SCHEME_DEFAULT); } #endif