diff options
Diffstat (limited to 'libdecor/src/plugins/cairo')
| -rw-r--r-- | libdecor/src/plugins/cairo/libdecor-cairo.c | 2796 |
1 files changed, 0 insertions, 2796 deletions
diff --git a/libdecor/src/plugins/cairo/libdecor-cairo.c b/libdecor/src/plugins/cairo/libdecor-cairo.c deleted file mode 100644 index d8854bc8e..000000000 --- a/libdecor/src/plugins/cairo/libdecor-cairo.c +++ /dev/null @@ -1,2796 +0,0 @@ -/* - * Copyright © 2018 Jonas Ådahl - * Copyright © 2019 Christian Rauch - * - * 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 "config.h" - -#include <linux/input.h> -#include <fcntl.h> -#include <poll.h> -#include <string.h> -#include <sys/mman.h> -#include <unistd.h> -#include <stdio.h> -#include <errno.h> -#include <limits.h> -#include <wayland-cursor.h> - -#include "libdecor-plugin.h" -#include "utils.h" -#include "desktop-settings.h" -#include "os-compatibility.h" - -#include <cairo/cairo.h> -#include <pango/pangocairo.h> - -#include "common/libdecor-cairo-blur.h" - -static const size_t SHADOW_MARGIN = 24; /* graspable part of the border */ -static const size_t TITLE_HEIGHT = 24; -static const size_t BUTTON_WIDTH = 32; -static const size_t SYM_DIM = 14; - -static const uint32_t COL_TITLE = 0xFF080706; -static const uint32_t COL_TITLE_INACT = 0xFF303030; -static const uint32_t COL_BUTTON_MIN = 0xFFFFBB00; -static const uint32_t COL_BUTTON_MAX = 0xFF238823; -static const uint32_t COL_BUTTON_CLOSE = 0xFFFB6542; -static const uint32_t COL_BUTTON_INACT = 0xFF404040; -static const uint32_t COL_SYM = 0xFFF4F4EF; -static const uint32_t COL_SYM_ACT = 0xFF20322A; -static const uint32_t COL_SYM_INACT = 0xFF909090; - -static const uint32_t DOUBLE_CLICK_TIME_MS = 400; - -static const char *cursor_names[] = { - "top_side", - "bottom_side", - "left_side", - "top_left_corner", - "bottom_left_corner", - "right_side", - "top_right_corner", - "bottom_right_corner" -}; - - -/* color conversion function from 32bit integer to double components */ - -double -red(const uint32_t *const col) { - return ((const uint8_t*)(col))[2] / (double)(255); -} - -double -green(const uint32_t *const col) { - return ((const uint8_t*)(col))[1] / (double)(255); -} - -double -blue(const uint32_t *const col) { - return ((const uint8_t*)(col))[0] / (double)(255); -} - -double -alpha(const uint32_t *const col) { - return ((const uint8_t*)(col))[3] / (double)(255); -} - -void -cairo_set_rgba32(cairo_t *cr, const uint32_t *const c) { - cairo_set_source_rgba(cr, red(c), green(c), blue(c), alpha(c)); -} - -static bool -streql(const char *str1, const char *str2) -{ - return (str1 && str2) && (strcmp(str1, str2) == 0); -} - -enum decoration_type { - DECORATION_TYPE_NONE, - DECORATION_TYPE_ALL, - DECORATION_TYPE_MAXIMIZED, - DECORATION_TYPE_TILED -}; - -enum component { - NONE = 0, - SHADOW, - TITLE, - BUTTON_MIN, - BUTTON_MAX, - BUTTON_CLOSE, -}; - -enum composite_mode { - COMPOSITE_SERVER, - COMPOSITE_CLIENT, -}; - -struct seat { - struct libdecor_plugin_cairo *plugin_cairo; - - char *name; - - struct wl_seat *wl_seat; - struct wl_pointer *wl_pointer; - - struct wl_surface *cursor_surface; - struct wl_cursor *current_cursor; - int cursor_scale; - struct wl_list cursor_outputs; - - struct wl_cursor_theme *cursor_theme; - /* cursors for resize edges and corners */ - struct wl_cursor *cursors[ARRAY_LENGTH(cursor_names)]; - struct wl_cursor *cursor_left_ptr; - - struct wl_surface *pointer_focus; - struct libdecor_frame_cairo *pointer_focus_frame; - - int pointer_x, pointer_y; - - uint32_t pointer_button_time_stamp; - - uint32_t serial; - - bool grabbed; - - struct wl_list link; -}; - -struct output { - struct libdecor_plugin_cairo *plugin_cairo; - - struct wl_output *wl_output; - uint32_t id; - int scale; - - struct wl_list link; -}; - -struct buffer { - struct wl_buffer *wl_buffer; - bool in_use; - bool is_detached; - - void *data; - size_t data_size; - int width; - int height; - int scale; - int buffer_width; - int buffer_height; -}; - -struct border_component { - enum component type; - - bool is_hidden; - bool opaque; - - enum composite_mode composite_mode; - struct { - struct wl_surface *wl_surface; - struct wl_subsurface *wl_subsurface; - struct buffer *buffer; - struct wl_list output_list; - int scale; - } server; - struct { - cairo_surface_t *image; - struct border_component *parent_component; - } client; - - struct wl_list child_components; /* border_component::link */ - struct wl_list link; /* border_component::child_components */ -}; - -struct surface_output { - struct output *output; - struct wl_list link; -}; - -struct cursor_output { - struct output *output; - struct wl_list link; -}; - -struct libdecor_frame_cairo { - struct libdecor_frame frame; - - struct libdecor_plugin_cairo *plugin_cairo; - - int content_width; - int content_height; - - enum decoration_type decoration_type; - - enum libdecor_window_state window_state; - - char *title; - - enum libdecor_capabilities capabilities; - - struct border_component *focus; - struct border_component *active; - struct border_component *grab; - - bool shadow_showing; - struct border_component shadow; - - struct { - bool is_showing; - struct border_component title; - struct border_component min; - struct border_component max; - struct border_component close; - } title_bar; - - /* store pre-processed shadow tile */ - cairo_surface_t *shadow_blur; - - struct wl_list link; -}; - -struct libdecor_plugin_cairo { - struct libdecor_plugin plugin; - - struct wl_callback *globals_callback; - struct wl_callback *globals_callback_shm; - - struct libdecor *context; - - struct wl_registry *wl_registry; - struct wl_subcompositor *wl_subcompositor; - struct wl_compositor *wl_compositor; - - struct wl_shm *wl_shm; - struct wl_callback *shm_callback; - bool has_argb; - - struct wl_list visible_frame_list; - struct wl_list seat_list; - struct wl_list output_list; - - char *cursor_theme_name; - int cursor_size; - - PangoFontDescription *font; - - bool handle_cursor; -}; - -static const char *libdecor_cairo_proxy_tag = "libdecor-cairo"; - -static void -sync_active_component(struct libdecor_frame_cairo *frame_cairo, - struct seat *seat); - -static void -synthesize_pointer_enter(struct seat *seat); - -static void -synthesize_pointer_leave(struct seat *seat); - -static bool -own_proxy(struct wl_proxy *proxy) -{ - if (!proxy) - return false; - - return (wl_proxy_get_tag(proxy) == &libdecor_cairo_proxy_tag); -} - -static bool -own_surface(struct wl_surface *surface) -{ - return own_proxy((struct wl_proxy *) surface); -} - -static bool -own_output(struct wl_output *output) -{ - return own_proxy((struct wl_proxy *) output); -} - -static bool -moveable(struct libdecor_frame_cairo *frame_cairo) { - return libdecor_frame_has_capability(&frame_cairo->frame, - LIBDECOR_ACTION_MOVE); -} - -static bool -resizable(struct libdecor_frame_cairo *frame_cairo) { - return libdecor_frame_has_capability(&frame_cairo->frame, - LIBDECOR_ACTION_RESIZE); -} - -static bool -minimizable(struct libdecor_frame_cairo *frame_cairo) { - return libdecor_frame_has_capability(&frame_cairo->frame, - LIBDECOR_ACTION_MINIMIZE); -} - -static bool -closeable(struct libdecor_frame_cairo *frame_cairo) { - return libdecor_frame_has_capability(&frame_cairo->frame, - LIBDECOR_ACTION_CLOSE); -} - -static void -buffer_free(struct buffer *buffer); - -static void -draw_border_component(struct libdecor_frame_cairo *frame_cairo, - struct border_component *border_component); - -static void -send_cursor(struct seat *seat); - -static bool -update_local_cursor(struct seat *seat); - -static void -libdecor_plugin_cairo_destroy(struct libdecor_plugin *plugin) -{ - struct libdecor_plugin_cairo *plugin_cairo = - (struct libdecor_plugin_cairo *) plugin; - struct seat *seat, *seat_tmp; - struct output *output, *output_tmp; - struct libdecor_frame_cairo *frame, *frame_tmp; - - if (plugin_cairo->globals_callback) - wl_callback_destroy(plugin_cairo->globals_callback); - if (plugin_cairo->globals_callback_shm) - wl_callback_destroy(plugin_cairo->globals_callback_shm); - if (plugin_cairo->shm_callback) - wl_callback_destroy(plugin_cairo->shm_callback); - wl_registry_destroy(plugin_cairo->wl_registry); - - wl_list_for_each_safe(seat, seat_tmp, &plugin_cairo->seat_list, link) { - struct cursor_output *cursor_output, *tmp; - - if (seat->wl_pointer) - wl_pointer_destroy(seat->wl_pointer); - if (seat->cursor_surface) - wl_surface_destroy(seat->cursor_surface); - wl_seat_destroy(seat->wl_seat); - if (seat->cursor_theme) - wl_cursor_theme_destroy(seat->cursor_theme); - - wl_list_for_each_safe(cursor_output, tmp, &seat->cursor_outputs, link) { - wl_list_remove(&cursor_output->link); - free(cursor_output); - } - free(seat->name); - - free(seat); - } - - wl_list_for_each_safe(output, output_tmp, - &plugin_cairo->output_list, link) { - if (wl_output_get_version (output->wl_output) >= - WL_OUTPUT_RELEASE_SINCE_VERSION) - wl_output_release(output->wl_output); - else - wl_output_destroy(output->wl_output); - free(output); - } - - wl_list_for_each_safe(frame, frame_tmp, - &plugin_cairo->visible_frame_list, link) { - wl_list_remove(&frame->link); - } - - free(plugin_cairo->cursor_theme_name); - - if (plugin_cairo->wl_shm) - wl_shm_destroy(plugin_cairo->wl_shm); - - pango_font_description_free(plugin_cairo->font); - - if (plugin_cairo->wl_compositor) - wl_compositor_destroy(plugin_cairo->wl_compositor); - if (plugin_cairo->wl_subcompositor) - wl_subcompositor_destroy(plugin_cairo->wl_subcompositor); - - libdecor_plugin_release(&plugin_cairo->plugin); - free(plugin_cairo); -} - -static void -init_server_component(struct border_component *border_component, - enum component type) -{ - border_component->composite_mode = COMPOSITE_SERVER; - wl_list_init(&border_component->child_components); - border_component->type = type; -} - -static void -init_client_component(struct border_component *border_component, - struct border_component *parent, - enum component type) -{ - border_component->composite_mode = COMPOSITE_CLIENT; - wl_list_init(&border_component->child_components); - wl_list_insert(parent->child_components.prev, &border_component->link); - border_component->client.parent_component = parent; - border_component->type = type; -} - -static void -init_components(struct libdecor_frame_cairo *frame_cairo) -{ - init_server_component(&frame_cairo->title_bar.title, - TITLE); - init_client_component(&frame_cairo->title_bar.min, - &frame_cairo->title_bar.title, - BUTTON_MIN); - init_client_component(&frame_cairo->title_bar.max, - &frame_cairo->title_bar.title, - BUTTON_MAX); - init_client_component(&frame_cairo->title_bar.close, - &frame_cairo->title_bar.title, - BUTTON_CLOSE); - init_server_component(&frame_cairo->shadow, - SHADOW); -} - -static struct libdecor_frame_cairo * -libdecor_frame_cairo_new(struct libdecor_plugin_cairo *plugin_cairo) -{ - struct libdecor_frame_cairo *frame_cairo = zalloc(sizeof *frame_cairo); - cairo_t *cr; - - static const int size = 128; - static const int boundary = 32; - - frame_cairo->plugin_cairo = plugin_cairo; - frame_cairo->shadow_blur = cairo_image_surface_create( - CAIRO_FORMAT_ARGB32, size, size); - wl_list_insert(&plugin_cairo->visible_frame_list, &frame_cairo->link); - - init_components(frame_cairo); - - cr = cairo_create(frame_cairo->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(frame_cairo->shadow_blur, 64); - - return frame_cairo; -} - -static int -libdecor_plugin_cairo_get_fd(struct libdecor_plugin *plugin) -{ - struct libdecor_plugin_cairo *plugin_cairo = - (struct libdecor_plugin_cairo *) plugin; - struct wl_display *wl_display = - libdecor_get_wl_display(plugin_cairo->context); - - return wl_display_get_fd(wl_display); -} - -static int -libdecor_plugin_cairo_dispatch(struct libdecor_plugin *plugin, - int timeout) -{ - struct libdecor_plugin_cairo *plugin_cairo = - (struct libdecor_plugin_cairo *) plugin; - struct wl_display *wl_display = - libdecor_get_wl_display(plugin_cairo->context); - struct pollfd fds[1]; - int ret; - int dispatch_count = 0; - - while (wl_display_prepare_read(wl_display) != 0) - dispatch_count += wl_display_dispatch_pending(wl_display); - - if (wl_display_flush(wl_display) < 0 && - errno != EAGAIN) { - wl_display_cancel_read(wl_display); - return -errno; - } - - fds[0] = (struct pollfd) { wl_display_get_fd(wl_display), POLLIN }; - - ret = poll(fds, ARRAY_SIZE (fds), timeout); - if (ret > 0) { - if (fds[0].revents & POLLIN) { - wl_display_read_events(wl_display); - dispatch_count += wl_display_dispatch_pending(wl_display); - return dispatch_count; - } else { - wl_display_cancel_read(wl_display); - return dispatch_count; - } - } else if (ret == 0) { - wl_display_cancel_read(wl_display); - return dispatch_count; - } else { - wl_display_cancel_read(wl_display); - return -errno; - } -} - -static void -libdecor_plugin_cairo_set_handle_application_cursor(struct libdecor_plugin *plugin, - bool handle_cursor) -{ - struct libdecor_plugin_cairo *plugin_cairo = - (struct libdecor_plugin_cairo *) plugin; - - plugin_cairo->handle_cursor = handle_cursor; -} - -static struct libdecor_frame * -libdecor_plugin_cairo_frame_new(struct libdecor_plugin *plugin) -{ - struct libdecor_plugin_cairo *plugin_cairo = - (struct libdecor_plugin_cairo *) plugin; - struct libdecor_frame_cairo *frame_cairo; - - frame_cairo = libdecor_frame_cairo_new(plugin_cairo); - - return &frame_cairo->frame; -} - -static void -toggle_maximized(struct libdecor_frame *const frame) -{ - if (!resizable((struct libdecor_frame_cairo *)frame)) - return; - - if (!(libdecor_frame_get_window_state(frame) & - LIBDECOR_WINDOW_STATE_MAXIMIZED)) - libdecor_frame_set_maximized(frame); - else - libdecor_frame_unset_maximized(frame); -} - -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; -} - -static const struct wl_buffer_listener buffer_listener = { - buffer_release -}; - -static struct buffer * -create_shm_buffer(struct libdecor_plugin_cairo *plugin_cairo, - int width, - int height, - bool opaque, - int scale) -{ - struct wl_shm_pool *pool; - int fd, size, buffer_width, buffer_height, stride; - void *data; - struct buffer *buffer; - enum wl_shm_format buf_fmt; - - buffer_width = width * scale; - buffer_height = height * scale; - stride = buffer_width * 4; - size = stride * buffer_height; - - fd = libdecor_os_create_anonymous_file(size); - if (fd < 0) { - fprintf(stderr, "creating a buffer file for %d B failed: %s\n", - size, strerror(errno)); - return NULL; - } - - data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); - if (data == MAP_FAILED) { - fprintf(stderr, "mmap failed: %s\n", strerror(errno)); - close(fd); - return NULL; - } - - buf_fmt = opaque ? WL_SHM_FORMAT_XRGB8888 : WL_SHM_FORMAT_ARGB8888; - - pool = wl_shm_create_pool(plugin_cairo->wl_shm, fd, size); - buffer = zalloc(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); - close(fd); - - buffer->data = data; - buffer->data_size = size; - buffer->width = width; - buffer->height = height; - buffer->scale = scale; - buffer->buffer_width = buffer_width; - buffer->buffer_height = buffer_height; - - return buffer; -} - -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) -{ - struct surface_output *surface_output, *surface_output_tmp; - - if (border_component->server.wl_surface) { - wl_subsurface_destroy(border_component->server.wl_subsurface); - border_component->server.wl_subsurface = NULL; - wl_surface_destroy(border_component->server.wl_surface); - border_component->server.wl_surface = NULL; - } - if (border_component->server.buffer) { - buffer_free(border_component->server.buffer); - border_component->server.buffer = NULL; - } - if (border_component->client.image) { - cairo_surface_destroy(border_component->client.image); - border_component->client.image = NULL; - } - if (border_component->server.output_list.next != NULL) { - wl_list_for_each_safe(surface_output, surface_output_tmp, - &border_component->server.output_list, link) { - wl_list_remove(&surface_output->link); - free(surface_output); - } - } -} - -static void -libdecor_plugin_cairo_frame_free(struct libdecor_plugin *plugin, - struct libdecor_frame *frame) -{ - struct libdecor_plugin_cairo *plugin_cairo = - (struct libdecor_plugin_cairo *) plugin; - struct libdecor_frame_cairo *frame_cairo = - (struct libdecor_frame_cairo *) frame; - struct seat *seat; - - wl_list_for_each(seat, &plugin_cairo->seat_list, link) { - if (seat->pointer_focus) { - if (wl_surface_get_user_data(seat->pointer_focus) == frame_cairo) - seat->pointer_focus = NULL; - if (seat->pointer_focus_frame == frame_cairo) - seat->pointer_focus_frame = NULL; - } - } - - free_border_component(&frame_cairo->title_bar.title); - free_border_component(&frame_cairo->title_bar.min); - free_border_component(&frame_cairo->title_bar.max); - free_border_component(&frame_cairo->title_bar.close); - frame_cairo->title_bar.is_showing = false; - free_border_component(&frame_cairo->shadow); - frame_cairo->shadow_showing = false; - if (frame_cairo->shadow_blur != NULL) { - cairo_surface_destroy(frame_cairo->shadow_blur); - frame_cairo->shadow_blur = NULL; - } - - free(frame_cairo->title); - frame_cairo->title = NULL; - - frame_cairo->decoration_type = DECORATION_TYPE_NONE; - - if (frame_cairo->link.next != NULL) - wl_list_remove(&frame_cairo->link); -} - -static bool -is_border_surfaces_showing(struct libdecor_frame_cairo *frame_cairo) -{ - return frame_cairo->shadow_showing; -} - -static bool -is_title_bar_surfaces_showing(struct libdecor_frame_cairo *frame_cairo) -{ - return frame_cairo->title_bar.is_showing; -} - -static struct border_component * -get_server_component(struct border_component *border_component) -{ - switch (border_component->composite_mode) { - case COMPOSITE_SERVER: - return border_component; - case COMPOSITE_CLIENT: - return get_server_component(border_component->client.parent_component); - } - return NULL; -} - -static void -redraw_border_component(struct libdecor_frame_cairo *frame_cairo, - struct border_component *border_component) -{ - struct border_component *server_component; - - server_component = get_server_component(border_component); - draw_border_component(frame_cairo, server_component); -} - -static void -hide_border_component(struct libdecor_frame_cairo *frame_cairo, - struct border_component *border_component) -{ - border_component->is_hidden = true; - - switch (border_component->composite_mode) { - case COMPOSITE_SERVER: - if (!border_component->server.wl_surface) - return; - - wl_surface_attach(border_component->server.wl_surface, - NULL, 0, 0); - wl_surface_commit(border_component->server.wl_surface); - break; - case COMPOSITE_CLIENT: - redraw_border_component(frame_cairo, border_component); - break; - } -} - -static void -hide_border_surfaces(struct libdecor_frame_cairo *frame_cairo) -{ - hide_border_component(frame_cairo, &frame_cairo->shadow); - frame_cairo->shadow_showing = false; -} - -static void -hide_title_bar_surfaces(struct libdecor_frame_cairo *frame_cairo) -{ - hide_border_component(frame_cairo, &frame_cairo->title_bar.title); - hide_border_component(frame_cairo, &frame_cairo->title_bar.min); - hide_border_component(frame_cairo, &frame_cairo->title_bar.max); - hide_border_component(frame_cairo, &frame_cairo->title_bar.close); - frame_cairo->title_bar.is_showing = false; -} - -static struct border_component * -get_component_for_surface(struct libdecor_frame_cairo *frame_cairo, - struct wl_surface *surface) -{ - if (frame_cairo->shadow.server.wl_surface == surface) - return &frame_cairo->shadow; - if (frame_cairo->title_bar.title.server.wl_surface == surface) - return &frame_cairo->title_bar.title; - return NULL; -} - -static void -calculate_component_size(struct libdecor_frame_cairo *frame_cairo, - enum component component, - int *component_x, - int *component_y, - int *component_width, - int *component_height); - -static void -update_component_focus(struct libdecor_frame_cairo *frame_cairo, - struct wl_surface *surface, - struct seat *seat) -{ - static struct border_component *border_component; - static struct border_component *child_component; - static struct border_component *focus_component; - - border_component = get_component_for_surface(frame_cairo, surface); - if (!border_component) { - focus_component = NULL; - goto out; - } - - focus_component = border_component; - wl_list_for_each(child_component, &border_component->child_components, link) { - int component_x = 0, component_y = 0; - int component_width = 0, component_height = 0; - - calculate_component_size(frame_cairo, child_component->type, - &component_x, &component_y, - &component_width, &component_height); - if (seat->pointer_x >= component_x && - seat->pointer_x < component_x + component_width && - seat->pointer_y >= component_y && - seat->pointer_y < component_y + component_height) { - focus_component = child_component; - break; - } - } - -out: - if (frame_cairo->grab) - frame_cairo->active = frame_cairo->grab; - else - frame_cairo->active = focus_component; - frame_cairo->focus = focus_component; - -} - -static void -ensure_component(struct libdecor_frame_cairo *frame_cairo, - struct border_component *cmpnt); - -static bool -redraw_scale(struct libdecor_frame_cairo *frame_cairo, - struct border_component *cmpnt) -{ - struct surface_output *surface_output; - int scale = 1; - - if (cmpnt->is_hidden) - return false; - - ensure_component(frame_cairo, cmpnt); - - wl_list_for_each(surface_output, &cmpnt->server.output_list, link) { - scale = MAX(scale, surface_output->output->scale); - } - if (scale != cmpnt->server.scale) { - cmpnt->server.scale = scale; - if ((cmpnt->type != SHADOW) || is_border_surfaces_showing(frame_cairo)) { - draw_border_component(frame_cairo, cmpnt); - return true; - } - } - return false; -} - -static bool -add_surface_output(struct libdecor_plugin_cairo *plugin_cairo, - struct wl_output *wl_output, - struct wl_list *list) -{ - struct output *output; - struct surface_output *surface_output; - - if (!own_output(wl_output)) - return false; - - output = wl_output_get_user_data(wl_output); - - if (output == NULL) - return false; - - surface_output = zalloc(sizeof *surface_output); - surface_output->output = output; - wl_list_insert(list, &surface_output->link); - return true; -} - -static void -surface_enter(void *data, - struct wl_surface *wl_surface, - struct wl_output *wl_output) -{ - struct libdecor_frame_cairo *frame_cairo = data; - struct border_component *cmpnt; - - if (!(own_surface(wl_surface) && own_output(wl_output))) - return; - - cmpnt = get_component_for_surface(frame_cairo, wl_surface); - if (cmpnt == NULL) - return; - - if (!add_surface_output(frame_cairo->plugin_cairo, wl_output, - &cmpnt->server.output_list)) - return; - - if (redraw_scale(frame_cairo, cmpnt)) - libdecor_frame_toplevel_commit(&frame_cairo->frame); -} - -static bool -remove_surface_output(struct wl_list *list, struct wl_output *wl_output) -{ - struct surface_output *surface_output; - wl_list_for_each(surface_output, list, link) { - if (surface_output->output->wl_output == wl_output) { - wl_list_remove(&surface_output->link); - free(surface_output); - return true; - } - } - return false; -} - -static void -surface_leave(void *data, - struct wl_surface *wl_surface, - struct wl_output *wl_output) -{ - struct libdecor_frame_cairo *frame_cairo = data; - struct border_component *cmpnt; - - if (!(own_surface(wl_surface) && own_output(wl_output))) - return; - - cmpnt = get_component_for_surface(frame_cairo, wl_surface); - if (cmpnt == NULL) - return; - - if (!remove_surface_output(&cmpnt->server.output_list, wl_output)) - return; - - if (redraw_scale(frame_cairo, cmpnt)) - libdecor_frame_toplevel_commit(&frame_cairo->frame); -} - -static struct wl_surface_listener surface_listener = { - surface_enter, - surface_leave, -}; - -static void -create_surface_subsurface_pair(struct libdecor_frame_cairo *frame_cairo, - struct wl_surface **out_wl_surface, - struct wl_subsurface **out_wl_subsurface) -{ - struct libdecor_plugin_cairo *plugin_cairo = frame_cairo->plugin_cairo; - struct libdecor_frame *frame = &frame_cairo->frame; - struct wl_compositor *wl_compositor = plugin_cairo->wl_compositor; - struct wl_subcompositor *wl_subcompositor = plugin_cairo->wl_subcompositor; - struct wl_surface *wl_surface; - struct wl_surface *parent; - struct wl_subsurface *wl_subsurface; - - wl_surface = wl_compositor_create_surface(wl_compositor); - wl_proxy_set_tag((struct wl_proxy *) wl_surface, - &libdecor_cairo_proxy_tag); - - parent = libdecor_frame_get_wl_surface(frame); - wl_subsurface = wl_subcompositor_get_subsurface(wl_subcompositor, - wl_surface, - parent); - - *out_wl_surface = wl_surface; - *out_wl_subsurface = wl_subsurface; -} - -static void -ensure_component(struct libdecor_frame_cairo *frame_cairo, - struct border_component *cmpnt) -{ - switch (cmpnt->composite_mode) { - case COMPOSITE_SERVER: - if (!cmpnt->server.wl_surface) { - wl_list_init(&cmpnt->server.output_list); - cmpnt->server.scale = 1; - create_surface_subsurface_pair(frame_cairo, - &cmpnt->server.wl_surface, - &cmpnt->server.wl_subsurface); - wl_surface_add_listener(cmpnt->server.wl_surface, - &surface_listener, - frame_cairo); - } - break; - case COMPOSITE_CLIENT: - wl_list_init(&cmpnt->server.output_list); - break; - } - - cmpnt->is_hidden = false; -} - -static void -ensure_border_surfaces(struct libdecor_frame_cairo *frame_cairo) -{ - int min_width, min_height, current_max_w, current_max_h; - - frame_cairo->shadow.opaque = false; - ensure_component(frame_cairo, &frame_cairo->shadow); - - libdecor_frame_get_min_content_size(&frame_cairo->frame, - &min_width, &min_height); - min_width = MAX(min_width, (int)MAX(56, 4 * BUTTON_WIDTH)); - min_height = MAX(min_height, (int)MAX(56, TITLE_HEIGHT + 1)); - libdecor_frame_set_min_content_size(&frame_cairo->frame, min_width, min_height); - libdecor_frame_get_max_content_size(&frame_cairo->frame, ¤t_max_w, - ¤t_max_h); - if (current_max_w && current_max_w < min_width) current_max_w = min_width; - if (current_max_h && current_max_h < min_height) current_max_h = min_height; - libdecor_frame_set_max_content_size(&frame_cairo->frame, current_max_w, - current_max_h); -} - - -static void -ensure_title_bar_surfaces(struct libdecor_frame_cairo *frame_cairo) -{ - frame_cairo->title_bar.title.opaque = true; - ensure_component(frame_cairo, &frame_cairo->title_bar.title); - - frame_cairo->title_bar.min.opaque = true; - ensure_component(frame_cairo, &frame_cairo->title_bar.min); - - frame_cairo->title_bar.max.opaque = true; - ensure_component(frame_cairo, &frame_cairo->title_bar.max); - - frame_cairo->title_bar.close.opaque = true; - ensure_component(frame_cairo, &frame_cairo->title_bar.close); -} - -static void -calculate_component_size(struct libdecor_frame_cairo *frame_cairo, - enum component component, - int *component_x, - int *component_y, - int *component_width, - int *component_height) -{ - struct libdecor_frame *frame = &frame_cairo->frame; - int content_width, content_height; - - content_width = libdecor_frame_get_content_width(frame); - content_height = libdecor_frame_get_content_height(frame); - - switch (component) { - case NONE: - *component_width = 0; - *component_height = 0; - return; - case SHADOW: - *component_x = -(int)SHADOW_MARGIN; - *component_y = -(int)(SHADOW_MARGIN+TITLE_HEIGHT); - *component_width = content_width + 2 * SHADOW_MARGIN; - *component_height = content_height - + 2 * SHADOW_MARGIN - + TITLE_HEIGHT; - return; - case TITLE: - *component_x = 0; - *component_y = -(int)TITLE_HEIGHT; - *component_width = content_width; - *component_height = TITLE_HEIGHT; - return; - case BUTTON_MIN: - *component_x = content_width - 3 * BUTTON_WIDTH; - *component_y = 0; - *component_width = BUTTON_WIDTH; - *component_height = TITLE_HEIGHT; - return; - case BUTTON_MAX: - *component_x = content_width - 2 * BUTTON_WIDTH; - *component_y = 0; - *component_width = BUTTON_WIDTH; - *component_height = TITLE_HEIGHT; - return; - case BUTTON_CLOSE: - *component_x = content_width - BUTTON_WIDTH; - *component_y = 0; - *component_width = BUTTON_WIDTH; - *component_height = TITLE_HEIGHT; - return; - } - - abort(); -} - -static int -border_component_get_scale(struct border_component *border_component) -{ - switch (border_component->composite_mode) { - case COMPOSITE_SERVER: - return border_component->server.scale; - case COMPOSITE_CLIENT: - return border_component_get_scale( - border_component->client.parent_component); - } - return 0; -} - -static void -draw_title_text(struct libdecor_frame_cairo *frame_cairo, - cairo_t *cr, - const int *title_width, - bool active) -{ - const uint32_t col_title = active ? COL_TITLE : COL_TITLE_INACT; - const uint32_t col_title_text = active ? COL_SYM : COL_SYM_INACT; - - PangoLayout *layout; - - /* title fade out at buttons */ - const int fade_width = 5 * BUTTON_WIDTH; - int fade_start; - cairo_pattern_t *fade; - - /* text position and dimensions */ - int text_extents_width, text_extents_height; - double text_x, text_y; - double text_width, text_height; - - const char *title; - - title = libdecor_frame_get_title((struct libdecor_frame*) frame_cairo); - if (!title) - return; - - layout = pango_cairo_create_layout(cr); - - pango_layout_set_text(layout, - title, - -1); - pango_layout_set_font_description(layout, frame_cairo->plugin_cairo->font); - pango_layout_get_size(layout, &text_extents_width, &text_extents_height); - - /* set text position and dimensions */ - text_width = text_extents_width / PANGO_SCALE; - text_height = text_extents_height / PANGO_SCALE; - text_x = *title_width / 2.0 - text_width / 2.0; - text_x += MIN(0.0, ((*title_width - fade_width) - (text_x + text_width))); - text_x = MAX(text_x, BUTTON_WIDTH); - text_y = TITLE_HEIGHT / 2.0 - text_height / 2.0; - - /* draw title text */ - cairo_move_to(cr, text_x, text_y); - cairo_set_rgba32(cr, &col_title_text); - pango_cairo_show_layout(cr, layout); - - /* draw fade-out from title text to buttons */ - fade_start = *title_width - fade_width; - fade = cairo_pattern_create_linear(fade_start, 0, - fade_start + 2 * BUTTON_WIDTH, 0); - cairo_pattern_add_color_stop_rgba(fade, 0, - red(&col_title), - green(&col_title), - blue(&col_title), - 0); - cairo_pattern_add_color_stop_rgb(fade, 1, - red(&col_title), - green(&col_title), - blue(&col_title)); - cairo_rectangle(cr, fade_start, 0, fade_width, TITLE_HEIGHT); - cairo_set_source(cr, fade); - cairo_fill(cr); - - cairo_pattern_destroy(fade); - g_object_unref(layout); -} - -static void -draw_component_content(struct libdecor_frame_cairo *frame_cairo, - struct border_component *border_component, - int component_width, - int component_height, - enum component component) -{ - struct buffer *buffer; - cairo_surface_t *surface = NULL; - int width = 0, height = 0; - int scale; - cairo_t *cr; - - /* button symbol origin */ - const double x = BUTTON_WIDTH / 2 - SYM_DIM / 2 + 0.5; - const double y = TITLE_HEIGHT / 2 - SYM_DIM / 2 + 0.5; - - enum libdecor_window_state state; - - bool active; - - uint32_t col_title; - - bool cap_min, cap_max, cap_close; - - /* capabilities of decorations */ - cap_min = minimizable(frame_cairo); - cap_max = resizable(frame_cairo); - cap_close = closeable(frame_cairo); - - scale = border_component_get_scale(border_component); - - state = libdecor_frame_get_window_state((struct libdecor_frame *) frame_cairo); - - active = state & LIBDECOR_WINDOW_STATE_ACTIVE; - - col_title = active ? COL_TITLE : COL_TITLE_INACT; - - /* clear buffer */ - switch (border_component->composite_mode) { - case COMPOSITE_SERVER: - buffer = border_component->server.buffer; - - surface = cairo_image_surface_create_for_data( - buffer->data, CAIRO_FORMAT_ARGB32, - buffer->buffer_width, buffer->buffer_height, - cairo_format_stride_for_width( - CAIRO_FORMAT_ARGB32, - buffer->buffer_width) - ); - cairo_surface_set_device_scale(surface, scale, scale); - width = buffer->width; - height = buffer->height; - break; - case COMPOSITE_CLIENT: - surface = cairo_surface_reference(border_component->client.image); - width = cairo_image_surface_get_width(surface); - height = cairo_image_surface_get_height(surface); - break; - } - - cr = cairo_create(surface); - cairo_save(cr); - cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0); - cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); - cairo_paint(cr); - cairo_restore(cr); - - /* background */ - switch (component) { - case NONE: - break; - case SHADOW: - if (frame_cairo->decoration_type != DECORATION_TYPE_TILED) - render_shadow(cr, - frame_cairo->shadow_blur, - -(int)SHADOW_MARGIN/2, - -(int)SHADOW_MARGIN/2, - width + SHADOW_MARGIN, - height + SHADOW_MARGIN, - 64, - 64); - break; - case TITLE: - cairo_set_rgba32(cr, &col_title); - cairo_paint(cr); - break; - case BUTTON_MIN: - if (cap_min && frame_cairo->active == &frame_cairo->title_bar.min) - cairo_set_rgba32(cr, active ? &COL_BUTTON_MIN : &COL_BUTTON_INACT); - else - cairo_set_rgba32(cr, &col_title); - cairo_paint(cr); - break; - case BUTTON_MAX: - if (cap_max && frame_cairo->active == &frame_cairo->title_bar.max) - cairo_set_rgba32(cr, active ? &COL_BUTTON_MAX : &COL_BUTTON_INACT); - else - cairo_set_rgba32(cr, &col_title); - cairo_paint(cr); - break; - case BUTTON_CLOSE: - if (cap_close && frame_cairo->active == &frame_cairo->title_bar.close) - cairo_set_rgba32(cr, active ? &COL_BUTTON_CLOSE : &COL_BUTTON_INACT); - else - cairo_set_rgba32(cr, &col_title); - cairo_paint(cr); - break; - } - - /* button symbols */ - /* https://www.cairographics.org/FAQ/#sharp_lines */ - cairo_set_line_width(cr, 1); - - switch (component) { - case TITLE: - draw_title_text(frame_cairo,cr, &component_width, active); - break; - case BUTTON_MIN: - if (!active) { - /* inactive: use single desaturated color */ - cairo_set_rgba32(cr, &COL_SYM_INACT); - } else { - if (!cap_min || - frame_cairo->active == &frame_cairo->title_bar.min) { - /* active (a.k.a. prelight) */ - cairo_set_rgba32(cr, &COL_SYM_ACT); - } else { - /* normal */ - cairo_set_rgba32(cr, &COL_SYM); - } - } - cairo_move_to(cr, x, y + SYM_DIM - 1); - cairo_rel_line_to(cr, SYM_DIM - 1, 0); - cairo_stroke(cr); - break; - case BUTTON_MAX: - if (!active) { - /* inactive: use single desaturated color */ - cairo_set_rgba32(cr, &COL_SYM_INACT); - } else { - if (!cap_max || - frame_cairo->active == &frame_cairo->title_bar.max) { - /* active (a.k.a. prelight) */ - cairo_set_rgba32(cr, &COL_SYM_ACT); - } else { - /* normal */ - cairo_set_rgba32(cr, &COL_SYM); - } - } - - if (state & LIBDECOR_WINDOW_STATE_MAXIMIZED) { - const size_t small = 12; - cairo_rectangle(cr, - x, - y + SYM_DIM - small, - small - 1, - small - 1); - cairo_move_to(cr, - x + SYM_DIM - small, - y + SYM_DIM - small); - cairo_line_to(cr, x + SYM_DIM - small, y); - cairo_rel_line_to(cr, small - 1, 0); - cairo_rel_line_to(cr, 0, small - 1); - cairo_line_to(cr, x + small - 1, y + small - 1); - } else { - cairo_rectangle(cr, x, y, SYM_DIM - 1, SYM_DIM - 1); - } - cairo_stroke(cr); - break; - case BUTTON_CLOSE: - if (!active) { - /* inactive: use single desaturated color */ - cairo_set_rgba32(cr, &COL_SYM_INACT); - } else { - if (!cap_close || - frame_cairo->active == &frame_cairo->title_bar.close) { - /* active (a.k.a. prelight) */ - cairo_set_rgba32(cr, &COL_SYM_ACT); - } else { - /* normal */ - cairo_set_rgba32(cr, &COL_SYM); - } - } - cairo_move_to(cr, x, y); - cairo_rel_line_to(cr, SYM_DIM - 1, SYM_DIM - 1); - cairo_move_to(cr, x + SYM_DIM - 1, y); - cairo_line_to(cr, x, y + SYM_DIM - 1); - cairo_stroke(cr); - break; - default: - break; - } - - /* mask the toplevel surface */ - if (component == SHADOW) { - int component_x, component_y, component_width, component_height; - calculate_component_size(frame_cairo, component, - &component_x, &component_y, - &component_width, &component_height); - cairo_set_operator(cr, CAIRO_OPERATOR_CLEAR); - cairo_rectangle(cr, -component_x, -component_y, - libdecor_frame_get_content_width( - &frame_cairo->frame), - libdecor_frame_get_content_height( - &frame_cairo->frame)); - cairo_fill(cr); - } - - cairo_destroy(cr); - cairo_surface_destroy(surface); -} - -static void -set_component_input_region(struct libdecor_frame_cairo *frame_cairo, - struct border_component *border_component) -{ - if (border_component->type == SHADOW && frame_cairo->shadow_showing) { - struct wl_region *input_region; - int component_x; - int component_y; - int component_width; - int component_height; - - calculate_component_size(frame_cairo, border_component->type, - &component_x, &component_y, - &component_width, &component_height); - - /* - * the input region is the outer surface size minus the inner - * content size - */ - input_region = wl_compositor_create_region( - frame_cairo->plugin_cairo->wl_compositor); - wl_region_add(input_region, 0, 0, - component_width, component_height); - wl_region_subtract(input_region, -component_x, -component_y, - libdecor_frame_get_content_width(&frame_cairo->frame), - libdecor_frame_get_content_height(&frame_cairo->frame)); - wl_surface_set_input_region(border_component->server.wl_surface, - input_region); - wl_region_destroy(input_region); - } -} - -static void -ensure_component_realized_server(struct libdecor_frame_cairo *frame_cairo, - struct border_component *border_component, - int component_width, - int component_height, - int scale) -{ - struct buffer *old_buffer; - struct buffer *buffer = NULL; - - old_buffer = border_component->server.buffer; - if (old_buffer) { - if (!old_buffer->in_use && - old_buffer->buffer_width == component_width * scale && - old_buffer->buffer_height == component_height * scale) { - buffer = old_buffer; - } else { - buffer_free(old_buffer); - border_component->server.buffer = NULL; - } - } - - if (!buffer) - buffer = create_shm_buffer(frame_cairo->plugin_cairo, - component_width, - component_height, - border_component->opaque, - border_component->server.scale); - - border_component->server.buffer = buffer; -} - -static void -ensure_component_realized_client(struct libdecor_frame_cairo *frame_cairo, - struct border_component *border_component, - int component_width, - int component_height, - int scale) -{ - cairo_surface_t *old_image; - - old_image = border_component->client.image; - if (old_image) { - int cairo_buffer_width; - int cairo_buffer_height; - double x_scale; - double y_scale; - - cairo_surface_get_device_scale(old_image, &x_scale, &y_scale); - cairo_buffer_width = - (int) round(cairo_image_surface_get_width(old_image) * - x_scale); - cairo_buffer_height = - (int) round(cairo_image_surface_get_height(old_image) * - y_scale); - - if (cairo_buffer_width != component_width * scale || - cairo_buffer_height != component_height * scale) { - cairo_surface_destroy(old_image); - border_component->client.image = NULL; - } - } - - if (!border_component->client.image) { - cairo_surface_t *new_image; - - new_image = - cairo_image_surface_create(CAIRO_FORMAT_ARGB32, - component_width * scale, - component_height * scale); - cairo_surface_set_device_scale(new_image, scale, scale); - border_component->client.image = new_image; - } - -} - -static void -ensure_component_realized(struct libdecor_frame_cairo *frame_cairo, - struct border_component *border_component, - int component_width, - int component_height, - int scale) -{ - switch (border_component->composite_mode) { - case COMPOSITE_SERVER: - ensure_component_realized_server(frame_cairo, border_component, - component_width, - component_height, - scale); - break; - case COMPOSITE_CLIENT: - ensure_component_realized_client(frame_cairo, border_component, - component_width, - component_height, - scale); - break; - } -} - -static cairo_t * -create_cairo_for_parent(struct border_component *border_component) -{ - struct border_component *parent = - border_component->client.parent_component; - struct buffer *buffer; - struct border_component *server_component; - cairo_surface_t *parent_surface; - cairo_t *cr; - - switch (parent->composite_mode) { - case COMPOSITE_SERVER: - buffer = parent->server.buffer; - parent_surface = cairo_image_surface_create_for_data( - buffer->data, CAIRO_FORMAT_ARGB32, - buffer->buffer_width, buffer->buffer_height, - cairo_format_stride_for_width( - CAIRO_FORMAT_ARGB32, - buffer->buffer_width) - ); - cr = cairo_create(parent_surface); - cairo_surface_destroy(parent_surface); - cairo_scale(cr, buffer->scale, buffer->scale); - return cr; - case COMPOSITE_CLIENT: - cr = cairo_create(parent->client.image); - server_component = get_server_component(border_component); - cairo_scale(cr, - server_component->server.scale, - server_component->server.scale); - return cr; - } - return NULL; -} - -static void -draw_border_component(struct libdecor_frame_cairo *frame_cairo, - struct border_component *border_component) -{ - enum component component = border_component->type; - struct buffer *buffer; - cairo_t *cr; - int component_x; - int component_y; - int component_width; - int component_height; - int scale; - struct border_component *child_component; - - if (border_component->is_hidden) - return; - - calculate_component_size(frame_cairo, component, - &component_x, &component_y, - &component_width, &component_height); - - set_component_input_region(frame_cairo, border_component); - - scale = border_component_get_scale(border_component); - ensure_component_realized(frame_cairo, border_component, - component_width, - component_height, - scale); - - draw_component_content(frame_cairo, - border_component, - component_width, component_height, - component); - - switch(border_component->composite_mode) { - case COMPOSITE_SERVER: - buffer = border_component->server.buffer; - wl_surface_attach(border_component->server.wl_surface, - buffer->wl_buffer, - 0, 0); - wl_surface_set_buffer_scale(border_component->server.wl_surface, - buffer->scale); - buffer->in_use = true; - wl_surface_commit(border_component->server.wl_surface); - wl_surface_damage_buffer(border_component->server.wl_surface, 0, 0, - component_width * scale, - component_height * scale); - wl_subsurface_set_position(border_component->server.wl_subsurface, - component_x, component_y); - break; - case COMPOSITE_CLIENT: - cr = create_cairo_for_parent(border_component); - cairo_set_source_surface(cr, - border_component->client.image, - component_x, component_y); - cairo_paint(cr); - cairo_destroy(cr); - break; - } - - wl_list_for_each(child_component, &border_component->child_components, link) - draw_border_component(frame_cairo, child_component); -} - -static void -draw_border(struct libdecor_frame_cairo *frame_cairo) -{ - draw_border_component(frame_cairo, &frame_cairo->shadow); - frame_cairo->shadow_showing = true; -} - -static void -draw_title_bar(struct libdecor_frame_cairo *frame_cairo) -{ - draw_border_component(frame_cairo, &frame_cairo->title_bar.title); - frame_cairo->title_bar.is_showing = true; -} - -static void -draw_decoration(struct libdecor_frame_cairo *frame_cairo) -{ - switch (frame_cairo->decoration_type) { - case DECORATION_TYPE_NONE: - if (frame_cairo->link.next != NULL) - wl_list_remove(&frame_cairo->link); - if (is_border_surfaces_showing(frame_cairo)) - hide_border_surfaces(frame_cairo); - if (is_title_bar_surfaces_showing(frame_cairo)) - hide_title_bar_surfaces(frame_cairo); - break; - case DECORATION_TYPE_TILED: - case DECORATION_TYPE_ALL: - /* show borders */ - ensure_border_surfaces(frame_cairo); - draw_border(frame_cairo); - /* show title bar */ - ensure_title_bar_surfaces(frame_cairo); - draw_title_bar(frame_cairo); - /* link frame */ - if (frame_cairo->link.next == NULL) - wl_list_insert( - &frame_cairo->plugin_cairo->visible_frame_list, - &frame_cairo->link); - break; - case DECORATION_TYPE_MAXIMIZED: - /* hide borders */ - if (is_border_surfaces_showing(frame_cairo)) - hide_border_surfaces(frame_cairo); - /* show title bar */ - ensure_title_bar_surfaces(frame_cairo); - draw_title_bar(frame_cairo); - /* link frame */ - if (frame_cairo->link.next == NULL) - wl_list_insert( - &frame_cairo->plugin_cairo->visible_frame_list, - &frame_cairo->link); - break; - } -} - -static enum decoration_type -window_state_to_decoration_type(enum libdecor_window_state window_state) -{ - if (window_state & LIBDECOR_WINDOW_STATE_FULLSCREEN) - return DECORATION_TYPE_NONE; - else if (window_state & LIBDECOR_WINDOW_STATE_MAXIMIZED) - /* title bar, no shadows */ - return DECORATION_TYPE_MAXIMIZED; - else if (window_state & LIBDECOR_WINDOW_STATE_TILED_LEFT || - window_state & LIBDECOR_WINDOW_STATE_TILED_RIGHT || - window_state & LIBDECOR_WINDOW_STATE_TILED_TOP || - window_state & LIBDECOR_WINDOW_STATE_TILED_BOTTOM) - /* title bar, invisible shadows */ - return DECORATION_TYPE_TILED; - else - /* title bar, shadows */ - return DECORATION_TYPE_ALL; -} - -static void -libdecor_plugin_cairo_frame_commit(struct libdecor_plugin *plugin, - struct libdecor_frame *frame, - struct libdecor_state *state, - struct libdecor_configuration *configuration) -{ - struct libdecor_frame_cairo *frame_cairo = - (struct libdecor_frame_cairo *) frame; - 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 = frame_cairo->window_state; - new_window_state = libdecor_frame_get_window_state(frame); - - old_content_width = frame_cairo->content_width; - old_content_height = frame_cairo->content_height; - new_content_width = libdecor_frame_get_content_width(frame); - new_content_height = libdecor_frame_get_content_height(frame); - - old_decoration_type = frame_cairo->decoration_type; - new_decoration_type = window_state_to_decoration_type(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) - return; - - frame_cairo->content_width = new_content_width; - frame_cairo->content_height = new_content_height; - frame_cairo->decoration_type = new_decoration_type; - frame_cairo->window_state = new_window_state; - - draw_decoration(frame_cairo); -} - -static void -libdecor_plugin_cairo_frame_property_changed(struct libdecor_plugin *plugin, - struct libdecor_frame *frame) -{ - struct libdecor_frame_cairo *frame_cairo = - (struct libdecor_frame_cairo *) frame; - bool redraw_needed = false; - const char *new_title; - - new_title = libdecor_frame_get_title(frame); - if (frame_cairo->title_bar.is_showing) { - if (!streql(frame_cairo->title, new_title)) - redraw_needed = true; - } - - if (frame_cairo->title) { - free(frame_cairo->title); - frame_cairo->title = NULL; - } - - if (new_title) { - frame_cairo->title = strdup(new_title); - } - - if (frame_cairo->capabilities != libdecor_frame_get_capabilities(frame)) { - frame_cairo->capabilities = libdecor_frame_get_capabilities(frame); - redraw_needed = true; - } - - if (redraw_needed) { - draw_decoration(frame_cairo); - libdecor_frame_toplevel_commit(frame); - } -} - -static bool -streq(const char *str1, - const char *str2) -{ - if (!str1 && !str2) - return true; - - if (str1 && str2) - return strcmp(str1, str2) == 0; - - return false; -} - -static void -libdecor_plugin_cairo_frame_popup_grab(struct libdecor_plugin *plugin, - struct libdecor_frame *frame, - const char *seat_name) -{ - struct libdecor_frame_cairo *frame_cairo = - (struct libdecor_frame_cairo *) frame; - struct libdecor_plugin_cairo *plugin_cairo = frame_cairo->plugin_cairo; - struct seat *seat; - - wl_list_for_each(seat, &plugin_cairo->seat_list, link) { - if (streq(seat->name, seat_name)) { - if (seat->grabbed) { - fprintf(stderr, "libdecor-WARNING: Application " - "tried to grab seat twice\n"); - } - synthesize_pointer_leave(seat); - seat->grabbed = true; - return; - } - } - - fprintf(stderr, - "libdecor-WARNING: Application tried to grab unknown seat\n"); -} - -static void -libdecor_plugin_cairo_frame_popup_ungrab(struct libdecor_plugin *plugin, - struct libdecor_frame *frame, - const char *seat_name) -{ - struct libdecor_frame_cairo *frame_cairo = - (struct libdecor_frame_cairo *) frame; - struct libdecor_plugin_cairo *plugin_cairo = frame_cairo->plugin_cairo; - struct seat *seat; - - wl_list_for_each(seat, &plugin_cairo->seat_list, link) { - if (streq(seat->name, seat_name)) { - if (!seat->grabbed) { - fprintf(stderr, "libdecor-WARNING: Application " - "tried to ungrab seat twice\n"); - } - seat->grabbed = false; - synthesize_pointer_enter(seat); - sync_active_component(frame_cairo, seat); - return; - } - } - - fprintf(stderr, - "libdecor-WARNING: Application tried to ungrab unknown seat\n"); -} - -static bool -libdecor_plugin_cairo_frame_get_border_size(struct libdecor_plugin *plugin, - struct libdecor_frame *frame, - struct libdecor_configuration *configuration, - int *left, - int *right, - int *top, - int *bottom) -{ - enum libdecor_window_state window_state; - - if (configuration) { - if (!libdecor_configuration_get_window_state( - configuration, &window_state)) - return false; - } else { - window_state = libdecor_frame_get_window_state(frame); - } - - if (left) - *left = 0; - if (right) - *right = 0; - if (bottom) - *bottom = 0; - if (top) { - enum decoration_type type = window_state_to_decoration_type(window_state); - - if (((struct libdecor_frame_cairo *)frame)->title_bar.is_showing && - (type != DECORATION_TYPE_NONE)) - *top = TITLE_HEIGHT; - else - *top = 0; - } - - return true; -} - -static struct libdecor_plugin_interface cairo_plugin_iface = { - .destroy = libdecor_plugin_cairo_destroy, - .get_fd = libdecor_plugin_cairo_get_fd, - .dispatch = libdecor_plugin_cairo_dispatch, - - .set_handle_application_cursor = libdecor_plugin_cairo_set_handle_application_cursor, - - .frame_new = libdecor_plugin_cairo_frame_new, - .frame_free = libdecor_plugin_cairo_frame_free, - .frame_commit = libdecor_plugin_cairo_frame_commit, - .frame_property_changed = libdecor_plugin_cairo_frame_property_changed, - .frame_popup_grab = libdecor_plugin_cairo_frame_popup_grab, - .frame_popup_ungrab = libdecor_plugin_cairo_frame_popup_ungrab, - .frame_get_border_size = libdecor_plugin_cairo_frame_get_border_size, -}; - -static void -init_wl_compositor(struct libdecor_plugin_cairo *plugin_cairo, - uint32_t id, - uint32_t version) -{ - plugin_cairo->wl_compositor = - wl_registry_bind(plugin_cairo->wl_registry, - id, &wl_compositor_interface, - MIN(version, 4)); -} - -static void -init_wl_subcompositor(struct libdecor_plugin_cairo *plugin_cairo, - uint32_t id, - uint32_t version) -{ - plugin_cairo->wl_subcompositor = - wl_registry_bind(plugin_cairo->wl_registry, - id, &wl_subcompositor_interface, 1); -} - -static void -shm_format(void *user_data, - struct wl_shm *wl_shm, - uint32_t format) -{ - struct libdecor_plugin_cairo *plugin_cairo = user_data; - - if (format == WL_SHM_FORMAT_ARGB8888) - plugin_cairo->has_argb = true; -} - -struct wl_shm_listener shm_listener = { - shm_format -}; - -static void -shm_callback(void *user_data, - struct wl_callback *callback, - uint32_t time) -{ - struct libdecor_plugin_cairo *plugin_cairo = user_data; - struct libdecor *context = plugin_cairo->context; - - wl_callback_destroy(callback); - plugin_cairo->globals_callback_shm = NULL; - - if (!plugin_cairo->has_argb) { - libdecor_notify_plugin_error( - context, - LIBDECOR_ERROR_COMPOSITOR_INCOMPATIBLE, - "Compositor is missing required shm format"); - return; - } - - libdecor_notify_plugin_ready(context); -} - -static const struct wl_callback_listener shm_callback_listener = { - shm_callback -}; - -static void -init_wl_shm(struct libdecor_plugin_cairo *plugin_cairo, - uint32_t id, - uint32_t version) -{ - struct libdecor *context = plugin_cairo->context; - struct wl_display *wl_display = libdecor_get_wl_display(context); - - plugin_cairo->wl_shm = - wl_registry_bind(plugin_cairo->wl_registry, - id, &wl_shm_interface, 1); - wl_shm_add_listener(plugin_cairo->wl_shm, &shm_listener, plugin_cairo); - - plugin_cairo->globals_callback_shm = wl_display_sync(wl_display); - wl_callback_add_listener(plugin_cairo->globals_callback_shm, - &shm_callback_listener, - plugin_cairo); -} - -static void -cursor_surface_enter(void *data, - struct wl_surface *wl_surface, - struct wl_output *wl_output) -{ - struct seat *seat = data; - - if(own_output(wl_output)) { - struct cursor_output *cursor_output; - cursor_output = zalloc(sizeof *cursor_output); - cursor_output->output = wl_output_get_user_data(wl_output); - wl_list_insert(&seat->cursor_outputs, &cursor_output->link); - if (update_local_cursor(seat)) - send_cursor(seat); - } -} - -static void -cursor_surface_leave(void *data, - struct wl_surface *wl_surface, - struct wl_output *wl_output) -{ - struct seat *seat = data; - - if(own_output(wl_output)) { - struct cursor_output *cursor_output, *tmp; - wl_list_for_each_safe(cursor_output, tmp, &seat->cursor_outputs, link) { - if (cursor_output->output->wl_output == wl_output) { - wl_list_remove(&cursor_output->link); - free(cursor_output); - } - } - - if (update_local_cursor(seat)) - send_cursor(seat); - } -} - -static struct wl_surface_listener cursor_surface_listener = { - cursor_surface_enter, - cursor_surface_leave, -}; - -static void -ensure_cursor_surface(struct seat *seat) -{ - struct wl_compositor *wl_compositor = seat->plugin_cairo->wl_compositor; - - if (seat->cursor_surface) - return; - - seat->cursor_surface = wl_compositor_create_surface(wl_compositor); - wl_surface_add_listener(seat->cursor_surface, - &cursor_surface_listener, seat); -} - -static bool -ensure_cursor_theme(struct seat *seat) -{ - struct libdecor_plugin_cairo *plugin_cairo = seat->plugin_cairo; - int scale = 1; - struct wl_cursor_theme *theme; - struct cursor_output *cursor_output; - - wl_list_for_each(cursor_output, &seat->cursor_outputs, link) { - scale = MAX(scale, cursor_output->output->scale); - } - - if (seat->cursor_theme && seat->cursor_scale == scale) - return false; - - seat->cursor_scale = scale; - theme = wl_cursor_theme_load(plugin_cairo->cursor_theme_name, - plugin_cairo->cursor_size * scale, - plugin_cairo->wl_shm); - if (theme == NULL) - return false; - - if (seat->cursor_theme) - wl_cursor_theme_destroy(seat->cursor_theme); - - seat->cursor_theme = theme; - - for (unsigned int i = 0; i < ARRAY_LENGTH(cursor_names); i++) { - seat->cursors[i] = wl_cursor_theme_get_cursor( - seat->cursor_theme, - cursor_names[i]); - } - - seat->cursor_left_ptr = wl_cursor_theme_get_cursor(seat->cursor_theme, - "left_ptr"); - seat->current_cursor = seat->cursor_left_ptr; - - return true; -} - -enum libdecor_resize_edge -component_edge(const struct border_component *cmpnt, - const int pointer_x, - const int pointer_y, - const int margin) -{ - const bool top = pointer_y < margin * 2; - const bool bottom = pointer_y > (cmpnt->server.buffer->height - margin * 2); - const bool left = pointer_x < margin * 2; - const bool right = pointer_x > (cmpnt->server.buffer->width - margin * 2); - - if (top) - if (left) - return LIBDECOR_RESIZE_EDGE_TOP_LEFT; - else if (right) - return LIBDECOR_RESIZE_EDGE_TOP_RIGHT; - else - return LIBDECOR_RESIZE_EDGE_TOP; - else if (bottom) - if (left) - return LIBDECOR_RESIZE_EDGE_BOTTOM_LEFT; - else if (right) - return LIBDECOR_RESIZE_EDGE_BOTTOM_RIGHT; - else - return LIBDECOR_RESIZE_EDGE_BOTTOM; - else if (left) - return LIBDECOR_RESIZE_EDGE_LEFT; - else if (right) - return LIBDECOR_RESIZE_EDGE_RIGHT; - else - return LIBDECOR_RESIZE_EDGE_NONE; -} - -static bool -update_local_cursor(struct seat *seat) -{ - if (!seat->pointer_focus) { - seat->current_cursor = seat->cursor_left_ptr; - return false; - } - - if (!own_surface(seat->pointer_focus)) { - if (seat->plugin_cairo->handle_cursor) { - seat->current_cursor = seat->cursor_left_ptr; - return true; - } else { - return false; - } - } - - struct libdecor_frame_cairo *frame_cairo = - wl_surface_get_user_data(seat->pointer_focus); - struct wl_cursor *wl_cursor = NULL; - - if (!frame_cairo || !frame_cairo->active) { - seat->current_cursor = seat->cursor_left_ptr; - return false; - } - - bool theme_updated = ensure_cursor_theme(seat); - - if (frame_cairo->active->type == SHADOW && - is_border_surfaces_showing(frame_cairo) && - resizable(frame_cairo)) { - enum libdecor_resize_edge edge; - edge = component_edge(frame_cairo->active, - seat->pointer_x, - seat->pointer_y, SHADOW_MARGIN); - - if (edge != LIBDECOR_RESIZE_EDGE_NONE) - wl_cursor = seat->cursors[edge - 1]; - } else { - wl_cursor = seat->cursor_left_ptr; - } - - if (seat->current_cursor != wl_cursor) { - seat->current_cursor = wl_cursor; - return true; - } - - return theme_updated; -} - -static void -send_cursor(struct seat *seat) -{ - struct wl_cursor_image *image; - struct wl_buffer *buffer; - - if (seat->pointer_focus == NULL || seat->current_cursor == NULL) - return; - - image = seat->current_cursor->images[0]; - buffer = wl_cursor_image_get_buffer(image); - wl_surface_attach(seat->cursor_surface, buffer, 0, 0); - wl_surface_set_buffer_scale(seat->cursor_surface, seat->cursor_scale); - wl_surface_damage_buffer(seat->cursor_surface, 0, 0, - image->width * seat->cursor_scale, - image->height * seat->cursor_scale); - wl_surface_commit(seat->cursor_surface); - wl_pointer_set_cursor(seat->wl_pointer, seat->serial, - seat->cursor_surface, - image->hotspot_x / seat->cursor_scale, - image->hotspot_y / seat->cursor_scale); -} - -static void -sync_active_component(struct libdecor_frame_cairo *frame_cairo, - struct seat *seat) -{ - struct border_component *old_active; - - if (!seat->pointer_focus) - return; - - old_active = frame_cairo->active; - update_component_focus(frame_cairo, seat->pointer_focus, seat); - if (old_active != frame_cairo->active) { - draw_decoration(frame_cairo); - libdecor_frame_toplevel_commit(&frame_cairo->frame); - } - - if (update_local_cursor(seat)) - send_cursor(seat); -} - -static void -synthesize_pointer_enter(struct seat *seat) -{ - struct wl_surface *surface; - struct libdecor_frame_cairo *frame_cairo; - - surface = seat->pointer_focus; - if (!surface || !own_surface(surface)) - return; - - frame_cairo = wl_surface_get_user_data(surface); - if (!frame_cairo) - return; - - update_component_focus(frame_cairo, seat->pointer_focus, seat); - frame_cairo->grab = NULL; - - /* update decorations */ - if (frame_cairo->active) { - draw_decoration(frame_cairo); - libdecor_frame_toplevel_commit(&frame_cairo->frame); - } - - update_local_cursor(seat); - send_cursor(seat); -} - -static void -synthesize_pointer_leave(struct seat *seat) -{ - struct wl_surface *surface; - struct libdecor_frame_cairo *frame_cairo; - - surface = seat->pointer_focus; - if (!surface || !own_surface(surface)) - return; - - frame_cairo = wl_surface_get_user_data(surface); - if (!frame_cairo) - return; - - if (!frame_cairo->active) - return; - - frame_cairo->active = NULL; - draw_decoration(frame_cairo); - libdecor_frame_toplevel_commit(&frame_cairo->frame); - update_local_cursor(seat); -} - -static void -pointer_enter(void *data, - struct wl_pointer *wl_pointer, - uint32_t serial, - struct wl_surface *surface, - wl_fixed_t surface_x, - wl_fixed_t surface_y) -{ - struct seat *seat = data; - struct libdecor_frame_cairo *frame_cairo = NULL; - - if (!surface) - return; - - if (!own_surface(surface)) { - struct seat *seat = wl_pointer_get_user_data(wl_pointer); - struct libdecor_plugin_cairo *plugin_cairo = seat->plugin_cairo; - - if (!plugin_cairo->handle_cursor) - return; - } else { - frame_cairo = wl_surface_get_user_data(surface); - } - - ensure_cursor_surface(seat); - - seat->pointer_x = wl_fixed_to_int(surface_x); - seat->pointer_y = wl_fixed_to_int(surface_y); - seat->serial = serial; - seat->pointer_focus = surface; - seat->pointer_focus_frame = frame_cairo; - - if (seat->grabbed) - return; - - synthesize_pointer_enter(seat); -} - -static void -pointer_leave(void *data, - struct wl_pointer *wl_pointer, - uint32_t serial, - struct wl_surface *surface) -{ - struct seat *seat = data; - - if (!surface) - return; - - if (!own_surface(surface)) - return; - - synthesize_pointer_leave(seat); - seat->pointer_focus = NULL; - seat->pointer_focus_frame = NULL; -} - -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; - - seat->pointer_x = wl_fixed_to_int(surface_x); - seat->pointer_y = wl_fixed_to_int(surface_y); - - if (seat->grabbed) - return; - - if (!seat->pointer_focus_frame) - return; - - sync_active_component(seat->pointer_focus_frame, seat); -} - -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; - struct libdecor_frame_cairo *frame_cairo; - - if (!seat->pointer_focus || !own_surface(seat->pointer_focus)) - return; - - frame_cairo = wl_surface_get_user_data(seat->pointer_focus); - if (!frame_cairo) - return; - - if (seat->grabbed) { - libdecor_frame_dismiss_popup(&frame_cairo->frame, seat->name); - return; - } - - if (!frame_cairo->active) - return; - - if (button == BTN_LEFT) { - if (state == WL_POINTER_BUTTON_STATE_PRESSED) { - enum libdecor_resize_edge edge = - LIBDECOR_RESIZE_EDGE_NONE; - - frame_cairo->grab = NULL; - - switch (frame_cairo->active->type) { - case SHADOW: - edge = component_edge(frame_cairo->active, - seat->pointer_x, - seat->pointer_y, - SHADOW_MARGIN); - break; - case TITLE: - if (time-seat->pointer_button_time_stamp < - DOUBLE_CLICK_TIME_MS) { - toggle_maximized(&frame_cairo->frame); - } - else if (moveable(frame_cairo)) { - seat->pointer_button_time_stamp = time; - libdecor_frame_move(&frame_cairo->frame, - seat->wl_seat, - serial); - } - break; - case BUTTON_MIN: - case BUTTON_MAX: - case BUTTON_CLOSE: - frame_cairo->grab = frame_cairo->active; - break; - default: - break; - } - - if (edge != LIBDECOR_RESIZE_EDGE_NONE && - resizable(frame_cairo)) { - libdecor_frame_resize( - &frame_cairo->frame, - seat->wl_seat, - serial, - edge); - } - } - else if (state == WL_POINTER_BUTTON_STATE_RELEASED && - frame_cairo->grab) { - libdecor_frame_ref(&frame_cairo->frame); - if (frame_cairo->grab == frame_cairo->focus) { - switch (frame_cairo->active->type) { - case BUTTON_MIN: - if (minimizable(frame_cairo)) - libdecor_frame_set_minimized( - &frame_cairo->frame); - break; - case BUTTON_MAX: - toggle_maximized(&frame_cairo->frame); - break; - case BUTTON_CLOSE: - if (closeable(frame_cairo)) - libdecor_frame_close(&frame_cairo->frame); - break; - default: - break; - } - } - frame_cairo->grab = NULL; - sync_active_component(frame_cairo, seat); - libdecor_frame_unref(&frame_cairo->frame); - } - } - else if (button == BTN_RIGHT && - state == WL_POINTER_BUTTON_STATE_PRESSED && - seat->pointer_focus == frame_cairo->title_bar.title.server.wl_surface) { - libdecor_frame_show_window_menu(&frame_cairo->frame, - seat->wl_seat, - serial, - seat->pointer_x, - seat->pointer_y - TITLE_HEIGHT); - } -} - -static void -pointer_axis(void *data, - struct wl_pointer *wl_pointer, - uint32_t time, - uint32_t axis, - wl_fixed_t value) -{ -} - -static struct wl_pointer_listener pointer_listener = { - pointer_enter, - pointer_leave, - pointer_motion, - pointer_button, - pointer_axis -}; - -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) { - 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) { - wl_pointer_release(seat->wl_pointer); - seat->wl_pointer = NULL; - } -} - -static void -seat_name(void *data, - struct wl_seat *wl_seat, - const char *name) -{ - struct seat *seat = data; - - seat->name = strdup(name); -} - -static struct wl_seat_listener seat_listener = { - seat_capabilities, - seat_name -}; - -static void -init_wl_seat(struct libdecor_plugin_cairo *plugin_cairo, - uint32_t id, - uint32_t version) -{ - struct seat *seat; - - if (version < 3) { - libdecor_notify_plugin_error( - plugin_cairo->context, - LIBDECOR_ERROR_COMPOSITOR_INCOMPATIBLE, - "%s version 3 required but only version %i is available\n", - wl_seat_interface.name, version); - } - - seat = zalloc(sizeof *seat); - seat->cursor_scale = 1; - seat->plugin_cairo = plugin_cairo; - wl_list_init(&seat->cursor_outputs); - wl_list_insert(&plugin_cairo->seat_list, &seat->link); - seat->wl_seat = - wl_registry_bind(plugin_cairo->wl_registry, - id, &wl_seat_interface, 3); - wl_seat_add_listener(seat->wl_seat, &seat_listener, seat); -} - -static void -output_geometry(void *data, - struct wl_output *wl_output, - int32_t x, - int32_t y, - int32_t physical_width, - int32_t physical_height, - int32_t subpixel, - const char *make, - const char *model, - int32_t transform) -{ -} - -static void -output_mode(void *data, - struct wl_output *wl_output, - uint32_t flags, - int32_t width, - int32_t height, - int32_t refresh) -{ -} - -static void -output_done(void *data, - struct wl_output *wl_output) -{ - struct output *output = data; - struct libdecor_frame_cairo *frame_cairo; - struct seat *seat; - - wl_list_for_each(frame_cairo, - &output->plugin_cairo->visible_frame_list, link) { - bool updated = false; - updated |= redraw_scale(frame_cairo, &frame_cairo->shadow); - updated |= redraw_scale(frame_cairo, &frame_cairo->title_bar.title); - if (updated) - libdecor_frame_toplevel_commit(&frame_cairo->frame); - } - wl_list_for_each(seat, &output->plugin_cairo->seat_list, link) { - if (update_local_cursor(seat)) - send_cursor(seat); - } -} - -static void -output_scale(void *data, - struct wl_output *wl_output, - int32_t factor) -{ - struct output *output = data; - - output->scale = factor; -} - -static struct wl_output_listener output_listener = { - output_geometry, - output_mode, - output_done, - output_scale -}; - -static void -init_wl_output(struct libdecor_plugin_cairo *plugin_cairo, - uint32_t id, - uint32_t version) -{ - struct output *output; - - if (version < 2) { - libdecor_notify_plugin_error( - plugin_cairo->context, - LIBDECOR_ERROR_COMPOSITOR_INCOMPATIBLE, - "%s version 2 required but only version %i is available\n", - wl_output_interface.name, version); - } - - output = zalloc(sizeof *output); - output->plugin_cairo = plugin_cairo; - wl_list_insert(&plugin_cairo->output_list, &output->link); - output->id = id; - output->wl_output = - wl_registry_bind(plugin_cairo->wl_registry, - id, &wl_output_interface, - MIN (version, 3)); - wl_proxy_set_tag((struct wl_proxy *) output->wl_output, - &libdecor_cairo_proxy_tag); - wl_output_add_listener(output->wl_output, &output_listener, output); -} - -static void -registry_handle_global(void *user_data, - struct wl_registry *wl_registry, - uint32_t id, - const char *interface, - uint32_t version) -{ - struct libdecor_plugin_cairo *plugin_cairo = user_data; - - if (strcmp(interface, "wl_compositor") == 0) - init_wl_compositor(plugin_cairo, id, version); - else if (strcmp(interface, "wl_subcompositor") == 0) - init_wl_subcompositor(plugin_cairo, id, version); - else if (strcmp(interface, "wl_shm") == 0) - init_wl_shm(plugin_cairo, id, version); - else if (strcmp(interface, "wl_seat") == 0) - init_wl_seat(plugin_cairo, id, version); - else if (strcmp(interface, "wl_output") == 0) - init_wl_output(plugin_cairo, id, version); -} - -static void -remove_surface_outputs(struct border_component *cmpnt, struct output *output) -{ - struct surface_output *surface_output; - wl_list_for_each(surface_output, &cmpnt->server.output_list, link) { - if (surface_output->output == output) { - wl_list_remove(&surface_output->link); - free(surface_output); - break; - } - } -} - -static void -output_removed(struct libdecor_plugin_cairo *plugin_cairo, - struct output *output) -{ - struct libdecor_frame_cairo *frame_cairo; - struct seat *seat; - - wl_list_for_each(frame_cairo, &plugin_cairo->visible_frame_list, link) { - remove_surface_outputs(&frame_cairo->shadow, output); - remove_surface_outputs(&frame_cairo->title_bar.title, output); - remove_surface_outputs(&frame_cairo->title_bar.min, output); - remove_surface_outputs(&frame_cairo->title_bar.max, output); - remove_surface_outputs(&frame_cairo->title_bar.close, output); - } - wl_list_for_each(seat, &plugin_cairo->seat_list, link) { - struct cursor_output *cursor_output, *tmp; - wl_list_for_each_safe(cursor_output, tmp, &seat->cursor_outputs, link) { - if (cursor_output->output == output) { - wl_list_remove(&cursor_output->link); - free(cursor_output); - } - } - } - - wl_list_remove(&output->link); - wl_output_destroy(output->wl_output); - free(output); -} - -static void -registry_handle_global_remove(void *user_data, - struct wl_registry *wl_registry, - uint32_t name) -{ - struct libdecor_plugin_cairo *plugin_cairo = user_data; - struct output *output; - - wl_list_for_each(output, &plugin_cairo->output_list, link) { - if (output->id == name) { - output_removed(plugin_cairo, output); - break; - } - } -} - -static const struct wl_registry_listener registry_listener = { - registry_handle_global, - registry_handle_global_remove -}; - -static bool -has_required_globals(struct libdecor_plugin_cairo *plugin_cairo) -{ - if (!plugin_cairo->wl_compositor) - return false; - if (!plugin_cairo->wl_subcompositor) - return false; - if (!plugin_cairo->wl_shm) - return false; - - return true; -} - -static void -globals_callback(void *user_data, - struct wl_callback *callback, - uint32_t time) -{ - struct libdecor_plugin_cairo *plugin_cairo = user_data; - - wl_callback_destroy(callback); - plugin_cairo->globals_callback = NULL; -} - -static const struct wl_callback_listener globals_callback_listener = { - globals_callback -}; - -static struct libdecor_plugin * -libdecor_plugin_new(struct libdecor *context) -{ - struct libdecor_plugin_cairo *plugin_cairo; - struct wl_display *wl_display; - - plugin_cairo = zalloc(sizeof *plugin_cairo); - libdecor_plugin_init(&plugin_cairo->plugin, - context, - &cairo_plugin_iface); - plugin_cairo->context = context; - - wl_list_init(&plugin_cairo->visible_frame_list); - wl_list_init(&plugin_cairo->seat_list); - wl_list_init(&plugin_cairo->output_list); - - /* fetch cursor theme and size*/ - if (!libdecor_get_cursor_settings(&plugin_cairo->cursor_theme_name, - &plugin_cairo->cursor_size)) { - plugin_cairo->cursor_theme_name = NULL; - plugin_cairo->cursor_size = 24; - } - - /* define a sens-serif bold font at symbol size */ - plugin_cairo->font = pango_font_description_new(); - pango_font_description_set_family(plugin_cairo->font, "sans"); - pango_font_description_set_weight(plugin_cairo->font, PANGO_WEIGHT_BOLD); - pango_font_description_set_absolute_size(plugin_cairo->font, SYM_DIM * PANGO_SCALE); - - wl_display = libdecor_get_wl_display(context); - plugin_cairo->wl_registry = wl_display_get_registry(wl_display); - wl_registry_add_listener(plugin_cairo->wl_registry, - ®istry_listener, - plugin_cairo); - - plugin_cairo->globals_callback = wl_display_sync(wl_display); - wl_callback_add_listener(plugin_cairo->globals_callback, - &globals_callback_listener, - plugin_cairo); - wl_display_roundtrip(wl_display); - - if (!has_required_globals(plugin_cairo)) { - fprintf(stderr, "libdecor-cairo-WARNING: Could not get required globals\n"); - libdecor_plugin_cairo_destroy(&plugin_cairo->plugin); - return NULL; - } - - return &plugin_cairo->plugin; -} - -static struct libdecor_plugin_priority priorities[] = { - { NULL, LIBDECOR_PLUGIN_PRIORITY_MEDIUM } -}; - -LIBDECOR_EXPORT const struct libdecor_plugin_description -libdecor_plugin_description = { - .api_version = LIBDECOR_PLUGIN_API_VERSION, - .capabilities = LIBDECOR_PLUGIN_CAPABILITY_BASE, - .description = "libdecor plugin using Cairo", - .priorities = priorities, - .constructor = libdecor_plugin_new, -}; |