diff options
Diffstat (limited to 'libdecor/src/plugins/gtk/libdecor-gtk.c')
| -rw-r--r-- | libdecor/src/plugins/gtk/libdecor-gtk.c | 3028 |
1 files changed, 0 insertions, 3028 deletions
diff --git a/libdecor/src/plugins/gtk/libdecor-gtk.c b/libdecor/src/plugins/gtk/libdecor-gtk.c deleted file mode 100644 index bc5b0fa61..000000000 --- a/libdecor/src/plugins/gtk/libdecor-gtk.c +++ /dev/null @@ -1,3028 +0,0 @@ -/* - * Copyright © 2018 Jonas Ådahl - * Copyright © 2021 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 <string.h> -#include <sys/mman.h> -#include <unistd.h> -#include <stdio.h> -#include <errno.h> -#include <wayland-client-core.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 "common/libdecor-cairo-blur.h" -#include <poll.h> - -#include <gtk/gtk.h> - -static const size_t SHADOW_MARGIN = 24; /* grabbable part of the border */ - -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" -}; - -enum header_element { - HEADER_NONE, - HEADER_FULL, /* entire header bar */ - HEADER_TITLE, /* label */ - HEADER_MIN, - HEADER_MAX, - HEADER_CLOSE, -}; - -enum titlebar_gesture_state { - TITLEBAR_GESTURE_STATE_INIT, - TITLEBAR_GESTURE_STATE_BUTTON_PRESSED, - TITLEBAR_GESTURE_STATE_CONSUMED, - TITLEBAR_GESTURE_STATE_DISCARDED, -}; - -struct header_element_data { - const char *name; - enum header_element type; - /* pointer to button or NULL if not found*/ - GtkWidget *widget; - GtkStateFlags state; -}; - -static void -find_widget_by_name(GtkWidget *widget, void *data) -{ - if (GTK_IS_WIDGET(widget)) { - char *style_ctx = gtk_style_context_to_string( - gtk_widget_get_style_context(widget), - GTK_STYLE_CONTEXT_PRINT_SHOW_STYLE); - if (strstr(style_ctx, ((struct header_element_data *)data)->name)) { - ((struct header_element_data *)data)->widget = widget; - free(style_ctx); - return; - } - free(style_ctx); - } - - if (GTK_IS_CONTAINER(widget)) { - /* recursively traverse container */ - gtk_container_forall(GTK_CONTAINER(widget), &find_widget_by_name, data); - } -} - -static struct header_element_data -find_widget_by_type(GtkWidget *widget, enum header_element type) -{ - char* name = NULL; - 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 = {.name = name, .type = type, .widget = NULL}; - find_widget_by_name(widget, &data); - return data; -} - -static bool -in_region(const cairo_rectangle_int_t *rect, const int *x, const int *y) -{ - return (*x>=rect->x) & (*y>=rect->y) & - (*x<(rect->x+rect->width)) & (*y<(rect->y+rect->height)); -} - -static struct header_element_data -get_header_focus(const GtkHeaderBar *header_bar, const int x, const int y) -{ - /* we have to check child widgets (buttons, title) before the 'HDR_HDR' root widget */ - static const enum header_element elems[] = - {HEADER_TITLE, HEADER_MIN, HEADER_MAX, HEADER_CLOSE}; - - for (size_t i = 0; i < ARRAY_SIZE(elems); i++) { - 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 (in_region(&allocation, &x, &y)) - return elem; - } - } - - struct header_element_data elem_none = { .widget=NULL}; - return elem_none; -} - -static bool -streq(const char *str1, - const char *str2) -{ - if (!str1 && !str2) - return true; - - if (str1 && str2) - return strcmp(str1, str2) == 0; - - return false; -} - -enum decoration_type { - DECORATION_TYPE_NONE, - DECORATION_TYPE_ALL, - DECORATION_TYPE_TITLE_ONLY -}; - -enum component { - NONE = 0, - SHADOW, - HEADER, -}; - -struct seat { - struct libdecor_plugin_gtk *plugin_gtk; - - char *name; - - struct wl_seat *wl_seat; - struct wl_pointer *wl_pointer; - struct wl_touch *wl_touch; - - 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 wl_surface *touch_focus; - - int pointer_x, pointer_y; - - uint32_t touch_down_time_stamp; - - uint32_t serial; - - bool grabbed; - - struct wl_list link; -}; - -struct output { - struct libdecor_plugin_gtk *plugin_gtk; - - 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; - struct wl_surface *wl_surface; - struct wl_subsurface *wl_subsurface; - struct buffer *buffer; - bool opaque; - struct wl_list output_list; - int scale; - - 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_gtk { - struct libdecor_frame frame; - - struct libdecor_plugin_gtk *plugin_gtk; - - int content_width; - int content_height; - - enum libdecor_window_state window_state; - - enum decoration_type decoration_type; - - char *title; - - enum libdecor_capabilities capabilities; - - struct border_component *active; - struct border_component *touch_active; - - struct border_component *focus; - struct border_component *grab; - - bool shadow_showing; - struct border_component shadow; - - GtkWidget *window; /* offscreen window for rendering */ - GtkWidget *header; /* header bar with widgets */ - struct border_component headerbar; - struct header_element_data hdr_focus; - - /* store pre-processed shadow tile */ - cairo_surface_t *shadow_blur; - - struct wl_list link; - - struct { - enum titlebar_gesture_state state; - int button_pressed_count; - uint32_t first_pressed_button; - uint32_t first_pressed_time; - double pressed_x; - double pressed_y; - uint32_t pressed_serial; - } titlebar_gesture; -}; - -struct libdecor_plugin_gtk { - 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; - - uint32_t color_scheme_setting; - - int double_click_time_ms; - int drag_threshold; - - bool handle_cursor; -}; - -static const char *libdecor_gtk_proxy_tag = "libdecor-gtk"; - -static bool -own_proxy(struct wl_proxy *proxy) -{ - if (!proxy) - return false; - - return (wl_proxy_get_tag(proxy) == &libdecor_gtk_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_gtk *frame_gtk) { - return libdecor_frame_has_capability(&frame_gtk->frame, - LIBDECOR_ACTION_MOVE); -} - -static bool -resizable(struct libdecor_frame_gtk *frame_gtk) { - return libdecor_frame_has_capability(&frame_gtk->frame, - LIBDECOR_ACTION_RESIZE); -} - -static bool -minimizable(struct libdecor_frame_gtk *frame_gtk) { - return libdecor_frame_has_capability(&frame_gtk->frame, - LIBDECOR_ACTION_MINIMIZE); -} - -static bool -closeable(struct libdecor_frame_gtk *frame_gtk) { - return libdecor_frame_has_capability(&frame_gtk->frame, - LIBDECOR_ACTION_CLOSE); -} - -static void -buffer_free(struct buffer *buffer); - -static void -draw_border_component(struct libdecor_frame_gtk *frame_gtk, - struct border_component *border_component, - enum component component); - -static void -send_cursor(struct seat *seat); - -static bool -update_local_cursor(struct seat *seat); - -static void -libdecor_plugin_gtk_destroy(struct libdecor_plugin *plugin) -{ - struct libdecor_plugin_gtk *plugin_gtk = - (struct libdecor_plugin_gtk *) plugin; - struct seat *seat, *seat_tmp; - struct output *output, *output_tmp; - struct libdecor_frame_gtk *frame, *frame_tmp; - - if (plugin_gtk->globals_callback) - wl_callback_destroy(plugin_gtk->globals_callback); - if (plugin_gtk->globals_callback_shm) - wl_callback_destroy(plugin_gtk->globals_callback_shm); - if (plugin_gtk->shm_callback) - wl_callback_destroy(plugin_gtk->shm_callback); - wl_registry_destroy(plugin_gtk->wl_registry); - - wl_list_for_each_safe(seat, seat_tmp, &plugin_gtk->seat_list, link) { - struct cursor_output *cursor_output, *tmp; - - if (seat->wl_pointer) - wl_pointer_destroy(seat->wl_pointer); - if (seat->wl_touch) - wl_touch_destroy(seat->wl_touch); - 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_gtk->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_gtk->visible_frame_list, link) { - wl_list_remove(&frame->link); - } - - free(plugin_gtk->cursor_theme_name); - - if (plugin_gtk->wl_shm) - wl_shm_destroy(plugin_gtk->wl_shm); - - if (plugin_gtk->wl_compositor) - wl_compositor_destroy(plugin_gtk->wl_compositor); - if (plugin_gtk->wl_subcompositor) - wl_subcompositor_destroy(plugin_gtk->wl_subcompositor); - - libdecor_plugin_release(&plugin_gtk->plugin); - free(plugin_gtk); -} - -static struct libdecor_frame_gtk * -libdecor_frame_gtk_new(struct libdecor_plugin_gtk *plugin_gtk) -{ - struct libdecor_frame_gtk *frame_gtk = zalloc(sizeof *frame_gtk); - cairo_t *cr; - - static const int size = 128; - static const int boundary = 32; - - frame_gtk->plugin_gtk = plugin_gtk; - frame_gtk->shadow_blur = cairo_image_surface_create( - CAIRO_FORMAT_ARGB32, size, size); - wl_list_insert(&plugin_gtk->visible_frame_list, &frame_gtk->link); - - cr = cairo_create(frame_gtk->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_gtk->shadow_blur, 64); - - return frame_gtk; -} - -static int -libdecor_plugin_gtk_get_fd(struct libdecor_plugin *plugin) -{ - struct libdecor_plugin_gtk *plugin_gtk = - (struct libdecor_plugin_gtk *) plugin; - struct wl_display *wl_display = - libdecor_get_wl_display(plugin_gtk->context); - - return wl_display_get_fd(wl_display); -} - -static int -libdecor_plugin_gtk_dispatch(struct libdecor_plugin *plugin, - int timeout) -{ - struct libdecor_plugin_gtk *plugin_gtk = - (struct libdecor_plugin_gtk *) plugin; - struct wl_display *wl_display = - libdecor_get_wl_display(plugin_gtk->context); - struct pollfd fds[1]; - int ret; - int dispatch_count = 0; - - while (g_main_context_iteration(NULL, FALSE)); - - 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_gtk_set_handle_application_cursor(struct libdecor_plugin *plugin, - bool handle_cursor) -{ - struct libdecor_plugin_gtk *plugin_gtk = - (struct libdecor_plugin_gtk *) plugin; - - plugin_gtk->handle_cursor = handle_cursor; -} - -static struct libdecor_frame * -libdecor_plugin_gtk_frame_new(struct libdecor_plugin *plugin) -{ - struct libdecor_plugin_gtk *plugin_gtk = - (struct libdecor_plugin_gtk *) plugin; - struct libdecor_frame_gtk *frame_gtk; - - frame_gtk = libdecor_frame_gtk_new(plugin_gtk); - - return &frame_gtk->frame; -} - -static void -toggle_maximized(struct libdecor_frame *const frame) -{ - if (!resizable((struct libdecor_frame_gtk *)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_gtk *plugin_gtk, - 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_gtk->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) -{ - 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; - } - if (border_component->output_list.next != NULL) { - struct surface_output *surface_output, *surface_output_tmp; - wl_list_for_each_safe(surface_output, surface_output_tmp, - &border_component->output_list, link) { - wl_list_remove(&surface_output->link); - free(surface_output); - } - } -} - -static void -libdecor_plugin_gtk_frame_free(struct libdecor_plugin *plugin, - struct libdecor_frame *frame) -{ - struct libdecor_frame_gtk *frame_gtk = - (struct libdecor_frame_gtk *) frame; - - g_clear_pointer (&frame_gtk->header, gtk_widget_destroy); - g_clear_pointer (&frame_gtk->window, gtk_widget_destroy); - - free_border_component(&frame_gtk->headerbar); - free_border_component(&frame_gtk->shadow); - frame_gtk->shadow_showing = false; - - g_clear_pointer (&frame_gtk->shadow_blur, cairo_surface_destroy); - - g_clear_pointer (&frame_gtk->title, free); - - frame_gtk->decoration_type = DECORATION_TYPE_NONE; - - if (frame_gtk->link.next != NULL) - wl_list_remove(&frame_gtk->link); -} - -static bool -is_border_surfaces_showing(struct libdecor_frame_gtk *frame_gtk) -{ - return frame_gtk->shadow_showing; -} - -static void -hide_border_component(struct border_component *border_component) -{ - if (!border_component->wl_surface) - return; - - wl_surface_attach(border_component->wl_surface, NULL, 0, 0); - wl_surface_commit(border_component->wl_surface); -} - -static void -hide_border_surfaces(struct libdecor_frame_gtk *frame_gtk) -{ - hide_border_component(&frame_gtk->shadow); - frame_gtk->shadow_showing = false; -} - -static struct border_component * -get_component_for_surface(struct libdecor_frame_gtk *frame_gtk, - const struct wl_surface *surface) -{ - if (frame_gtk->shadow.wl_surface == surface) - return &frame_gtk->shadow; - if (frame_gtk->headerbar.wl_surface == surface) - return &frame_gtk->headerbar; - return NULL; -} - -static bool -redraw_scale(struct libdecor_frame_gtk *frame_gtk, - struct border_component *cmpnt) -{ - struct surface_output *surface_output; - int scale = 1; - - if (cmpnt->wl_surface == NULL) - return false; - - wl_list_for_each(surface_output, &cmpnt->output_list, link) { - scale = MAX(scale, surface_output->output->scale); - } - if (scale != cmpnt->scale) { - cmpnt->scale = scale; - if ((frame_gtk->decoration_type != DECORATION_TYPE_NONE) && - ((cmpnt->type != SHADOW) || is_border_surfaces_showing(frame_gtk))) { - draw_border_component(frame_gtk, cmpnt, cmpnt->type); - return true; - } - } - return false; -} - -static bool -add_surface_output(struct libdecor_plugin_gtk *plugin_gtk, - 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_gtk *frame_gtk = data; - struct border_component *cmpnt; - - if (!(own_surface(wl_surface) && own_output(wl_output))) - return; - - cmpnt = get_component_for_surface(frame_gtk, wl_surface); - if (cmpnt == NULL) - return; - - if (!add_surface_output(frame_gtk->plugin_gtk, wl_output, - &cmpnt->output_list)) - return; - - if (redraw_scale(frame_gtk, cmpnt)) - libdecor_frame_toplevel_commit(&frame_gtk->frame); -} - -static bool -remove_surface_output(struct wl_list *list, const 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_gtk *frame_gtk = data; - struct border_component *cmpnt; - - if (!(own_surface(wl_surface) && own_output(wl_output))) - return; - - cmpnt = get_component_for_surface(frame_gtk, wl_surface); - if (cmpnt == NULL) - return; - - if (!remove_surface_output(&cmpnt->output_list, wl_output)) - return; - - if (redraw_scale(frame_gtk, cmpnt)) - libdecor_frame_toplevel_commit(&frame_gtk->frame); -} - -static struct wl_surface_listener surface_listener = { - surface_enter, - surface_leave, -}; - -static void -create_surface_subsurface_pair(struct libdecor_frame_gtk *frame_gtk, - struct wl_surface **out_wl_surface, - struct wl_subsurface **out_wl_subsurface) -{ - struct libdecor_plugin_gtk *plugin_gtk = frame_gtk->plugin_gtk; - struct libdecor_frame *frame = &frame_gtk->frame; - struct wl_compositor *wl_compositor = plugin_gtk->wl_compositor; - struct wl_subcompositor *wl_subcompositor = plugin_gtk->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_gtk_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_gtk *frame_gtk, - struct border_component *cmpnt) -{ - if (!cmpnt->wl_surface) { - wl_list_init(&cmpnt->output_list); - cmpnt->scale = 1; - create_surface_subsurface_pair(frame_gtk, - &cmpnt->wl_surface, - &cmpnt->wl_subsurface); - wl_surface_add_listener(cmpnt->wl_surface, &surface_listener, - frame_gtk); - } -} - -static void -ensure_border_surfaces(struct libdecor_frame_gtk *frame_gtk) -{ - frame_gtk->shadow.type = SHADOW; - frame_gtk->shadow.opaque = false; - ensure_component(frame_gtk, &frame_gtk->shadow); -} - -static void -ensure_title_bar_surfaces(struct libdecor_frame_gtk *frame_gtk) -{ - GtkStyleContext *context_hdr; - - frame_gtk->headerbar.type = HEADER; - frame_gtk->headerbar.opaque = false; - ensure_component(frame_gtk, &frame_gtk->headerbar); - - if (frame_gtk->shadow.wl_surface) { - wl_subsurface_place_above(frame_gtk->headerbar.wl_subsurface, - frame_gtk->shadow.wl_surface); - } - - /* create an offscreen window with a header bar */ - /* TODO: This should only be done once at frame consutrction, but then - * the window and headerbar would not change style (e.g. backdrop) - * after construction. So we just destroy and re-create them. - */ - /* avoid warning when restoring previously turned off decoration */ - if (GTK_IS_WIDGET(frame_gtk->header)) { - gtk_widget_destroy(frame_gtk->header); - frame_gtk->header = NULL; - } - /* avoid warning when restoring previously turned off decoration */ - if (GTK_IS_WIDGET(frame_gtk->window)) { - gtk_widget_destroy(frame_gtk->window); - frame_gtk->window = NULL; - } - frame_gtk->window = gtk_offscreen_window_new(); - frame_gtk->header = gtk_header_bar_new(); - - g_object_get(gtk_widget_get_settings(frame_gtk->window), - "gtk-double-click-time", - &frame_gtk->plugin_gtk->double_click_time_ms, - "gtk-dnd-drag-threshold", - &frame_gtk->plugin_gtk->drag_threshold, - NULL); - /* set as "default" decoration */ - g_object_set(frame_gtk->header, - "title", libdecor_frame_get_title(&frame_gtk->frame), - "has-subtitle", FALSE, - "show-close-button", TRUE, - NULL); - - context_hdr = gtk_widget_get_style_context(frame_gtk->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(frame_gtk->window), frame_gtk->header); - gtk_header_bar_set_show_close_button(GTK_HEADER_BAR(frame_gtk->header), TRUE); - - gtk_window_set_resizable(GTK_WINDOW(frame_gtk->window), resizable(frame_gtk)); -} - -static void -calculate_component_size(struct libdecor_frame_gtk *frame_gtk, - enum component component, - int *component_x, - int *component_y, - int *component_width, - int *component_height) -{ - struct libdecor_frame *frame = &frame_gtk->frame; - int content_width, content_height; - - content_width = libdecor_frame_get_content_width(frame); - content_height = libdecor_frame_get_content_height(frame); - - /* avoid warning when restoring previously turned off decoration */ - const int title_height = - GTK_IS_WIDGET(frame_gtk->header) - ? gtk_widget_get_allocated_height(frame_gtk->header) : 0; - - 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 HEADER: - *component_x = 0; - /* reuse product of function call above */ - *component_y = - title_height; - *component_width = gtk_widget_get_allocated_width(frame_gtk->header); - /* reuse product of function call above */ - *component_height = title_height; - return; - } - - abort(); -} - -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_background(struct libdecor_frame_gtk *frame_gtk, - cairo_t *cr) -{ - /* background */ - GtkAllocation allocation; - GtkStyleContext* style; - - gtk_widget_get_allocation(GTK_WIDGET(frame_gtk->header), &allocation); - style = gtk_widget_get_style_context(frame_gtk->header); - gtk_render_background(style, cr, allocation.x, allocation.y, allocation.width, allocation.height); -} - -static void -draw_header_title(struct libdecor_frame_gtk *frame_gtk, - cairo_surface_t *surface) -{ - /* title */ - GtkWidget *label; - GtkAllocation allocation; - cairo_surface_t *label_surface = NULL; - cairo_t *cr; - - label = find_widget_by_type(frame_gtk->header, HEADER_TITLE).widget; - gtk_widget_get_allocation(label, &allocation); - - /* create subsection in which to draw label */ - 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); -} - -static void -draw_header_button(struct libdecor_frame_gtk *frame_gtk, - cairo_t *cr, - cairo_surface_t *surface, - enum header_element button_type, - enum libdecor_window_state window_state) -{ - 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(frame_gtk->header, button_type); - button = elem.widget; - if (!button) - return; - button_style = gtk_widget_get_style_context(button); - style_state = elem.state; - - /* change style based on window state and focus */ - if (!(window_state & LIBDECOR_WINDOW_STATE_ACTIVE)) { - style_state |= GTK_STATE_FLAG_BACKDROP; - } - if (frame_gtk->hdr_focus.widget == button) { - style_state |= GTK_STATE_FLAG_PRELIGHT; - if (frame_gtk->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 = (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 -draw_header_buttons(struct libdecor_frame_gtk *frame_gtk, - cairo_t *cr, - cairo_surface_t *surface) -{ - /* buttons */ - enum libdecor_window_state window_state; - enum header_element *buttons = NULL; - size_t nbuttons = 0; - - window_state = libdecor_frame_get_window_state( - (struct libdecor_frame*)frame_gtk); - - /* set buttons by capability */ - if (minimizable(frame_gtk)) - array_append(&buttons, &nbuttons, HEADER_MIN); - if (resizable(frame_gtk)) - array_append(&buttons, &nbuttons, HEADER_MAX); - if (closeable(frame_gtk)) - array_append(&buttons, &nbuttons, HEADER_CLOSE); - - for (size_t i = 0; i < nbuttons; i++) { - draw_header_button(frame_gtk, cr, surface, buttons[i], window_state); - } /* loop buttons */ - free(buttons); -} - -static void -draw_header(struct libdecor_frame_gtk *frame_gtk, - cairo_t *cr, - cairo_surface_t *surface) -{ - draw_header_background(frame_gtk, cr); - draw_header_title(frame_gtk, surface); - draw_header_buttons(frame_gtk, cr, surface); -} - -static void -draw_component_content(struct libdecor_frame_gtk *frame_gtk, - struct buffer *buffer, - int component_width, - int component_height, - enum component component) -{ - cairo_surface_t *surface; - cairo_t *cr; - - /* clear buffer */ - memset(buffer->data, 0, buffer->data_size); - - 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(surface); - - cairo_surface_set_device_scale(surface, buffer->scale, buffer->scale); - - /* background */ - switch (component) { - case NONE: - break; - case SHADOW: - render_shadow(cr, - frame_gtk->shadow_blur, - -(int)SHADOW_MARGIN/2, - -(int)SHADOW_MARGIN/2, - buffer->width + SHADOW_MARGIN, - buffer->height + SHADOW_MARGIN, - 64, - 64); - break; - case HEADER: - draw_header(frame_gtk, cr, surface); - break; - } - - /* mask the toplevel surface */ - if (component == SHADOW) { - int component_x, component_y, component_width, component_height; - calculate_component_size(frame_gtk, 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_gtk->frame), - libdecor_frame_get_content_height( - &frame_gtk->frame)); - cairo_fill(cr); - } - - cairo_destroy(cr); - cairo_surface_destroy(surface); -} - -static void -set_component_input_region(struct libdecor_frame_gtk *frame_gtk, - struct border_component *border_component) -{ - if (border_component->type == SHADOW && frame_gtk->shadow_showing) { - struct wl_region *input_region; - int component_x; - int component_y; - int component_width; - int component_height; - - calculate_component_size(frame_gtk, 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_gtk->plugin_gtk->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_gtk->frame), - libdecor_frame_get_content_height(&frame_gtk->frame)); - wl_surface_set_input_region(border_component->wl_surface, - input_region); - wl_region_destroy(input_region); - } -} - -static void -draw_border_component(struct libdecor_frame_gtk *frame_gtk, - struct border_component *border_component, - enum component component) -{ - struct libdecor_plugin_gtk *plugin_gtk = frame_gtk->plugin_gtk; - struct buffer *old_buffer; - struct buffer *buffer = NULL; - int component_x; - int component_y; - int component_width; - int component_height; - int scale = border_component->scale; - - if (border_component->wl_surface == NULL) - return; - - calculate_component_size(frame_gtk, component, - &component_x, &component_y, - &component_width, &component_height); - - set_component_input_region(frame_gtk, border_component); - - old_buffer = border_component->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->buffer = NULL; - } - } - - if (!buffer) - buffer = create_shm_buffer(plugin_gtk, - component_width, - component_height, - border_component->opaque, - border_component->scale); - - draw_component_content(frame_gtk, buffer, - component_width, component_height, - component); - - wl_surface_attach(border_component->wl_surface, buffer->wl_buffer, 0, 0); - wl_surface_set_buffer_scale(border_component->wl_surface, buffer->scale); - buffer->in_use = true; - wl_surface_commit(border_component->wl_surface); - wl_surface_damage_buffer(border_component->wl_surface, 0, 0, - component_width * scale, - component_height * scale); - wl_subsurface_set_position(border_component->wl_subsurface, - component_x, component_y); - - border_component->buffer = buffer; -} - -static void -draw_border(struct libdecor_frame_gtk *frame_gtk) -{ - draw_border_component(frame_gtk, &frame_gtk->shadow, SHADOW); - frame_gtk->shadow_showing = true; -} - -static void -draw_title_bar(struct libdecor_frame_gtk *frame_gtk) -{ - GtkAllocation allocation = {0, 0, frame_gtk->content_width, 0}; - enum libdecor_window_state state; - GtkStyleContext *style; - int pref_width; - int current_min_w, current_min_h, current_max_w, current_max_h, W, H; - - state = libdecor_frame_get_window_state((struct libdecor_frame*)frame_gtk); - style = gtk_widget_get_style_context(frame_gtk->window); - - if (!(state & LIBDECOR_WINDOW_STATE_ACTIVE)) { - gtk_widget_set_state_flags(frame_gtk->window, GTK_STATE_FLAG_BACKDROP, true); - } else { - gtk_widget_unset_state_flags(frame_gtk->window, GTK_STATE_FLAG_BACKDROP); - } - - if (libdecor_frame_is_floating(&frame_gtk->frame)) { - gtk_style_context_remove_class(style, "maximized"); - } else { - gtk_style_context_add_class(style, "maximized"); - } - - gtk_widget_show_all(frame_gtk->window); - - /* set default width, using an empty title to estimate its smallest admissible value */ - gtk_header_bar_set_title(GTK_HEADER_BAR(frame_gtk->header), ""); - gtk_widget_get_preferred_width(frame_gtk->header, NULL, &pref_width); - gtk_header_bar_set_title(GTK_HEADER_BAR(frame_gtk->header), - libdecor_frame_get_title(&frame_gtk->frame)); - libdecor_frame_get_min_content_size(&frame_gtk->frame, ¤t_min_w, ¤t_min_h); - if (current_min_w < pref_width) { - current_min_w = pref_width; - libdecor_frame_set_min_content_size(&frame_gtk->frame, current_min_w, current_min_h); - } - libdecor_frame_get_max_content_size(&frame_gtk->frame, ¤t_max_w, ¤t_max_h); - if (current_max_w && current_max_w < current_min_w) { - libdecor_frame_set_max_content_size(&frame_gtk->frame, current_min_w, current_max_h); - } - W = libdecor_frame_get_content_width(&frame_gtk->frame); - H = libdecor_frame_get_content_height(&frame_gtk->frame); - if (W < current_min_w) { - W = current_min_w; - struct libdecor_state *libdecor_state = libdecor_state_new(W, H); - libdecor_frame_commit(&frame_gtk->frame, libdecor_state, NULL); - libdecor_state_free(libdecor_state); - return; - } - /* set default height */ - gtk_widget_get_preferred_height(frame_gtk->header, NULL, &allocation.height); - - gtk_widget_size_allocate(frame_gtk->header, &allocation); - - draw_border_component(frame_gtk, &frame_gtk->headerbar, HEADER); -} - -static void -draw_decoration(struct libdecor_frame_gtk *frame_gtk) -{ - switch (frame_gtk->decoration_type) { - case DECORATION_TYPE_NONE: - if (frame_gtk->link.next != NULL) - wl_list_remove(&frame_gtk->link); - if (is_border_surfaces_showing(frame_gtk)) - hide_border_surfaces(frame_gtk); - hide_border_component(&frame_gtk->headerbar); - break; - case DECORATION_TYPE_ALL: - /* show borders */ - ensure_border_surfaces(frame_gtk); - draw_border(frame_gtk); - /* show title bar */ - ensure_title_bar_surfaces(frame_gtk); - draw_title_bar(frame_gtk); - /* link frame */ - if (frame_gtk->link.next == NULL) - wl_list_insert( - &frame_gtk->plugin_gtk->visible_frame_list, - &frame_gtk->link); - break; - case DECORATION_TYPE_TITLE_ONLY: - /* hide borders */ - if (is_border_surfaces_showing(frame_gtk)) - hide_border_surfaces(frame_gtk); - /* show title bar */ - ensure_title_bar_surfaces(frame_gtk); - draw_title_bar(frame_gtk); - /* link frame */ - if (frame_gtk->link.next == NULL) - wl_list_insert( - &frame_gtk->plugin_gtk->visible_frame_list, - &frame_gtk->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 || - 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, no shadows */ - return DECORATION_TYPE_TITLE_ONLY; - else - /* title bar, shadows */ - return DECORATION_TYPE_ALL; -} - -static void -libdecor_plugin_gtk_frame_commit(struct libdecor_plugin *plugin, - struct libdecor_frame *frame, - struct libdecor_state *state, - struct libdecor_configuration *configuration) -{ - struct libdecor_frame_gtk *frame_gtk = - (struct libdecor_frame_gtk *) 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_gtk->window_state; - new_window_state = libdecor_frame_get_window_state(frame); - - old_content_width = frame_gtk->content_width; - old_content_height = frame_gtk->content_height; - new_content_width = libdecor_frame_get_content_width(frame); - new_content_height = libdecor_frame_get_content_height(frame); - - old_decoration_type = frame_gtk->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_gtk->content_width = new_content_width; - frame_gtk->content_height = new_content_height; - frame_gtk->window_state = new_window_state; - frame_gtk->decoration_type = new_decoration_type; - - draw_decoration(frame_gtk); - - /* set fixed window size */ - if (!resizable(frame_gtk)) { - libdecor_frame_set_min_content_size(frame, - frame_gtk->content_width, - frame_gtk->content_height); - libdecor_frame_set_max_content_size(frame, - frame_gtk->content_width, - frame_gtk->content_height); - } -} - -static void -libdecor_plugin_gtk_frame_property_changed(struct libdecor_plugin *plugin, - struct libdecor_frame *frame) -{ - struct libdecor_frame_gtk *frame_gtk = - (struct libdecor_frame_gtk *) frame; - bool redraw_needed = false; - const char *new_title; - - /* - * when in SSD mode, the window title is not to be managed by GTK; - * this is detected by frame_gtk->header not being a proper GTK widget - */ - if (!GTK_IS_WIDGET(frame_gtk->header)) return; - - new_title = libdecor_frame_get_title(frame); - if (!streq(frame_gtk->title, new_title)) - redraw_needed = true; - free(frame_gtk->title); - frame_gtk->title = NULL; - if (new_title) - frame_gtk->title = strdup(new_title); - - if (frame_gtk->capabilities != libdecor_frame_get_capabilities(frame)) { - frame_gtk->capabilities = libdecor_frame_get_capabilities(frame); - redraw_needed = true; - } - - if (redraw_needed) { - draw_decoration(frame_gtk); - libdecor_frame_toplevel_commit(frame); - } -} - -static void -update_component_focus(struct libdecor_frame_gtk *frame_gtk, - 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_gtk, surface); - - 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_gtk, 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; - } - } - - if (frame_gtk->grab) - frame_gtk->active = frame_gtk->grab; - else - frame_gtk->active = focus_component; - frame_gtk->focus = focus_component; - -} - -static void -sync_active_component(struct libdecor_frame_gtk *frame_gtk, - struct seat *seat) -{ - struct border_component *old_active; - - if (!seat->pointer_focus) - return; - - old_active = frame_gtk->active; - update_component_focus(frame_gtk, seat->pointer_focus, seat); - if (old_active != frame_gtk->active) { - draw_decoration(frame_gtk); - libdecor_frame_toplevel_commit(&frame_gtk->frame); - } - - if (update_local_cursor(seat)) - send_cursor(seat); -} - -static void -synthesize_pointer_enter(struct seat *seat) -{ - struct wl_surface *surface; - struct libdecor_frame_gtk *frame_gtk; - - surface = seat->pointer_focus; - if (!surface || !own_surface(surface)) - return; - - frame_gtk = wl_surface_get_user_data(surface); - if (!frame_gtk) - return; - - update_component_focus(frame_gtk, seat->pointer_focus, seat); - frame_gtk->grab = NULL; - - /* update decorations */ - if (frame_gtk->active) { - draw_decoration(frame_gtk); - libdecor_frame_toplevel_commit(&frame_gtk->frame); - } - - update_local_cursor(seat); - send_cursor(seat); -} - -static void -synthesize_pointer_leave(struct seat *seat) -{ - struct wl_surface *surface; - struct libdecor_frame_gtk *frame_gtk; - - surface = seat->pointer_focus; - if (!surface || !own_surface(surface)) - return; - - frame_gtk = wl_surface_get_user_data(surface); - if (!frame_gtk) - return; - - if (!frame_gtk->active) - return; - - frame_gtk->active = NULL; - draw_decoration(frame_gtk); - libdecor_frame_toplevel_commit(&frame_gtk->frame); - update_local_cursor(seat); -} - -static void -libdecor_plugin_gtk_frame_popup_grab(struct libdecor_plugin *plugin, - struct libdecor_frame *frame, - const char *seat_name) -{ - struct libdecor_frame_gtk *frame_gtk = - (struct libdecor_frame_gtk *) frame; - struct libdecor_plugin_gtk *plugin_gtk = frame_gtk->plugin_gtk; - struct seat *seat; - - wl_list_for_each(seat, &plugin_gtk->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_gtk_frame_popup_ungrab(struct libdecor_plugin *plugin, - struct libdecor_frame *frame, - const char *seat_name) -{ - struct libdecor_frame_gtk *frame_gtk = - (struct libdecor_frame_gtk *) frame; - struct libdecor_plugin_gtk *plugin_gtk = frame_gtk->plugin_gtk; - struct seat *seat; - - wl_list_for_each(seat, &plugin_gtk->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_gtk, seat); - return; - } - } - - fprintf(stderr, - "libdecor-WARNING: Application tried to ungrab unknown seat\n"); -} - -static bool -libdecor_plugin_gtk_frame_get_border_size(struct libdecor_plugin *plugin, - struct libdecor_frame *frame, - struct libdecor_configuration *configuration, - int *left, - int *right, - int *top, - int *bottom) -{ - struct libdecor_frame_gtk *frame_gtk = - (struct libdecor_frame_gtk *) frame; - 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); - - switch (type) { - case DECORATION_TYPE_NONE: - *top = 0; - break; - case DECORATION_TYPE_ALL: - ensure_border_surfaces(frame_gtk); - //draw_border(frame_gtk); - G_GNUC_FALLTHROUGH; - case DECORATION_TYPE_TITLE_ONLY: - if (!frame_gtk->header) - ensure_title_bar_surfaces(frame_gtk); - gtk_widget_show_all(frame_gtk->window); - gtk_widget_get_preferred_height(frame_gtk->header, NULL, top); - break; - } - } - - return true; -} - -static struct libdecor_plugin_interface gtk_plugin_iface = { - .destroy = libdecor_plugin_gtk_destroy, - .get_fd = libdecor_plugin_gtk_get_fd, - .dispatch = libdecor_plugin_gtk_dispatch, - - .set_handle_application_cursor = libdecor_plugin_gtk_set_handle_application_cursor, - - .frame_new = libdecor_plugin_gtk_frame_new, - .frame_free = libdecor_plugin_gtk_frame_free, - .frame_commit = libdecor_plugin_gtk_frame_commit, - .frame_property_changed = libdecor_plugin_gtk_frame_property_changed, - - .frame_popup_grab = libdecor_plugin_gtk_frame_popup_grab, - .frame_popup_ungrab = libdecor_plugin_gtk_frame_popup_ungrab, - - .frame_get_border_size = libdecor_plugin_gtk_frame_get_border_size, -}; - -static void -init_wl_compositor(struct libdecor_plugin_gtk *plugin_gtk, - uint32_t id, - uint32_t version) -{ - plugin_gtk->wl_compositor = - wl_registry_bind(plugin_gtk->wl_registry, - id, &wl_compositor_interface, - MIN(version, 4)); -} - -static void -init_wl_subcompositor(struct libdecor_plugin_gtk *plugin_gtk, - uint32_t id, - uint32_t version) -{ - plugin_gtk->wl_subcompositor = - wl_registry_bind(plugin_gtk->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_gtk *plugin_gtk = user_data; - - if (format == WL_SHM_FORMAT_ARGB8888) - plugin_gtk->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_gtk *plugin_gtk = user_data; - struct libdecor *context = plugin_gtk->context; - - wl_callback_destroy(callback); - plugin_gtk->globals_callback_shm = NULL; - - if (!plugin_gtk->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_gtk *plugin_gtk, - uint32_t id, - uint32_t version) -{ - struct libdecor *context = plugin_gtk->context; - struct wl_display *wl_display = libdecor_get_wl_display(context); - - plugin_gtk->wl_shm = - wl_registry_bind(plugin_gtk->wl_registry, - id, &wl_shm_interface, 1); - wl_shm_add_listener(plugin_gtk->wl_shm, &shm_listener, plugin_gtk); - - plugin_gtk->globals_callback_shm = wl_display_sync(wl_display); - wl_callback_add_listener(plugin_gtk->globals_callback_shm, - &shm_callback_listener, - plugin_gtk); -} - -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_gtk->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_gtk *plugin_gtk = seat->plugin_gtk; - 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_gtk->cursor_theme_name, - plugin_gtk->cursor_size * scale, - plugin_gtk->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->buffer->height - margin * 2); - const bool left = pointer_x < margin * 2; - const bool right = pointer_x > (cmpnt->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)) - return false; - - struct libdecor_frame_gtk *frame_gtk = - wl_surface_get_user_data(seat->pointer_focus); - struct wl_cursor *wl_cursor = NULL; - - if (!frame_gtk || !frame_gtk->active) { - seat->current_cursor = seat->cursor_left_ptr; - return false; - } - - bool theme_updated = ensure_cursor_theme(seat); - - if (frame_gtk->active->type == SHADOW && - is_border_surfaces_showing(frame_gtk) && - resizable(frame_gtk)) { - enum libdecor_resize_edge edge; - edge = component_edge(frame_gtk->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 -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) -{ - if (!surface) - return; - - struct seat *seat = data; - struct libdecor_frame_gtk *frame_gtk = NULL; - - if (!own_surface(surface)) { - struct seat *seat = wl_pointer_get_user_data(wl_pointer); - struct libdecor_plugin_gtk *plugin_gtk = seat->plugin_gtk; - - if (!plugin_gtk->handle_cursor) - return; - } else { - frame_gtk = 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; - - if (!frame_gtk) - return; - - frame_gtk->active = get_component_for_surface(frame_gtk, surface); - - /* update decorations */ - if (frame_gtk->active) { - draw_decoration(frame_gtk); - libdecor_frame_toplevel_commit(&frame_gtk->frame); - } - - update_local_cursor(seat); - send_cursor(seat); -} - -static void -pointer_leave(void *data, - struct wl_pointer *wl_pointer, - uint32_t serial, - struct wl_surface *surface) -{ - struct seat *seat = data; - struct libdecor_frame_gtk *frame_gtk; - - seat->pointer_focus = NULL; - - if (!surface) - return; - - if (!own_surface(surface)) - return; - - frame_gtk = wl_surface_get_user_data(surface); - - if (frame_gtk) { - frame_gtk->titlebar_gesture.state = - TITLEBAR_GESTURE_STATE_INIT; - frame_gtk->titlebar_gesture.first_pressed_button = 0; - - frame_gtk->active = NULL; - frame_gtk->hdr_focus.widget = NULL; - frame_gtk->hdr_focus.type = HEADER_NONE; - draw_decoration(frame_gtk); - libdecor_frame_toplevel_commit(&frame_gtk->frame); - update_local_cursor(seat); - } -} - -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 libdecor_frame_gtk *frame_gtk; - struct header_element_data new_focus; - - if (!seat->pointer_focus || !own_surface(seat->pointer_focus)) - return; - - seat->pointer_x = wl_fixed_to_int(surface_x); - seat->pointer_y = wl_fixed_to_int(surface_y); - if (update_local_cursor(seat)) - send_cursor(seat); - - frame_gtk = wl_surface_get_user_data(seat->pointer_focus); - /* avoid warnings after decoration has been turned off */ - if (!GTK_IS_WIDGET(frame_gtk->header) || frame_gtk->active->type != HEADER) { - frame_gtk->hdr_focus.type = HEADER_NONE; - } - - new_focus = get_header_focus(GTK_HEADER_BAR(frame_gtk->header), - seat->pointer_x, seat->pointer_y); - - /* only update if widget change so that we keep the state */ - if (frame_gtk->hdr_focus.widget != new_focus.widget) { - frame_gtk->hdr_focus = new_focus; - } - frame_gtk->hdr_focus.state |= GTK_STATE_FLAG_PRELIGHT; - /* redraw with updated button visuals */ - draw_title_bar(frame_gtk); - libdecor_frame_toplevel_commit(&frame_gtk->frame); - - switch (frame_gtk->titlebar_gesture.state) { - case TITLEBAR_GESTURE_STATE_BUTTON_PRESSED: - if (frame_gtk->titlebar_gesture.first_pressed_button == BTN_LEFT) { - if (ABS ((double) seat->pointer_x - - (double) frame_gtk->titlebar_gesture.pressed_x) > - frame_gtk->plugin_gtk->drag_threshold || - ABS ((double) seat->pointer_y - - (double) frame_gtk->titlebar_gesture.pressed_y) > - frame_gtk->plugin_gtk->drag_threshold) { - libdecor_frame_move(&frame_gtk->frame, - seat->wl_seat, - frame_gtk->titlebar_gesture.pressed_serial); - } - } - case TITLEBAR_GESTURE_STATE_INIT: - case TITLEBAR_GESTURE_STATE_CONSUMED: - case TITLEBAR_GESTURE_STATE_DISCARDED: - break; - } -} - -static void -handle_button_on_shadow(struct libdecor_frame_gtk *frame_gtk, - struct seat *seat, - uint32_t serial, - uint32_t time, - uint32_t button, - uint32_t state) -{ - enum libdecor_resize_edge edge = LIBDECOR_RESIZE_EDGE_NONE; - - edge = component_edge(frame_gtk->active, - seat->pointer_x, - seat->pointer_y, - SHADOW_MARGIN); - - if (edge != LIBDECOR_RESIZE_EDGE_NONE && resizable(frame_gtk)) { - libdecor_frame_resize(&frame_gtk->frame, - seat->wl_seat, - serial, - edge); - } -} - -enum titlebar_gesture { - TITLEBAR_GESTURE_DOUBLE_CLICK, - TITLEBAR_GESTURE_MIDDLE_CLICK, - TITLEBAR_GESTURE_RIGHT_CLICK, -}; - -static void -handle_titlebar_gesture(struct libdecor_frame_gtk *frame_gtk, - struct seat *seat, - uint32_t serial, - enum titlebar_gesture gesture) -{ - switch (gesture) { - case TITLEBAR_GESTURE_DOUBLE_CLICK: - toggle_maximized(&frame_gtk->frame); - break; - case TITLEBAR_GESTURE_MIDDLE_CLICK: - break; - case TITLEBAR_GESTURE_RIGHT_CLICK: - { - const int title_height = gtk_widget_get_allocated_height(frame_gtk->header); - libdecor_frame_show_window_menu(&frame_gtk->frame, - seat->wl_seat, - serial, - seat->pointer_x, - seat->pointer_y - -title_height); - } - break; - } -} - -static void -handle_button_on_header(struct libdecor_frame_gtk *frame_gtk, - struct seat *seat, - uint32_t serial, - uint32_t time, - uint32_t button, - uint32_t state) -{ - switch (frame_gtk->titlebar_gesture.state) { - case TITLEBAR_GESTURE_STATE_INIT: - if (state != WL_POINTER_BUTTON_STATE_PRESSED) - return; - - if (button == BTN_RIGHT) { - handle_titlebar_gesture(frame_gtk, - seat, - serial, - TITLEBAR_GESTURE_RIGHT_CLICK); - frame_gtk->titlebar_gesture.state = - TITLEBAR_GESTURE_STATE_CONSUMED; - } else { - if (button == BTN_LEFT && - frame_gtk->titlebar_gesture.first_pressed_button == BTN_LEFT && - time - frame_gtk->titlebar_gesture.first_pressed_time < - (uint32_t) frame_gtk->plugin_gtk->double_click_time_ms) { - handle_titlebar_gesture(frame_gtk, - seat, - serial, - TITLEBAR_GESTURE_DOUBLE_CLICK); - frame_gtk->titlebar_gesture.state = - TITLEBAR_GESTURE_STATE_CONSUMED; - } else { - frame_gtk->titlebar_gesture.first_pressed_button = button; - frame_gtk->titlebar_gesture.first_pressed_time = time; - frame_gtk->titlebar_gesture.pressed_x = seat->pointer_x; - frame_gtk->titlebar_gesture.pressed_y = seat->pointer_y; - frame_gtk->titlebar_gesture.pressed_serial = serial; - frame_gtk->titlebar_gesture.state = - TITLEBAR_GESTURE_STATE_BUTTON_PRESSED; - } - } - - frame_gtk->titlebar_gesture.button_pressed_count = 1; - - switch (frame_gtk->hdr_focus.type) { - case HEADER_MIN: - case HEADER_MAX: - case HEADER_CLOSE: - frame_gtk->hdr_focus.state |= GTK_STATE_FLAG_ACTIVE; - draw_title_bar(frame_gtk); - libdecor_frame_toplevel_commit(&frame_gtk->frame); - break; - default: - break; - } - - break; - case TITLEBAR_GESTURE_STATE_BUTTON_PRESSED: - if (state == WL_POINTER_BUTTON_STATE_PRESSED) { - frame_gtk->titlebar_gesture.state = - TITLEBAR_GESTURE_STATE_DISCARDED; - frame_gtk->titlebar_gesture.button_pressed_count++; - } else { - frame_gtk->titlebar_gesture.button_pressed_count--; - - if (frame_gtk->titlebar_gesture.button_pressed_count == 0) { - frame_gtk->titlebar_gesture.state = - TITLEBAR_GESTURE_STATE_INIT; - if (frame_gtk->titlebar_gesture.first_pressed_button == button && - button == BTN_LEFT) { - libdecor_frame_ref(&frame_gtk->frame); - switch (frame_gtk->hdr_focus.type) { - case HEADER_MIN: - if (minimizable(frame_gtk)) - libdecor_frame_set_minimized( - &frame_gtk->frame); - break; - case HEADER_MAX: - toggle_maximized(&frame_gtk->frame); - break; - case HEADER_CLOSE: - if (closeable(frame_gtk)) { - libdecor_frame_close( - &frame_gtk->frame); - seat->pointer_focus = NULL; - } - break; - default: - break; - } - - frame_gtk->hdr_focus.state &= ~GTK_STATE_FLAG_ACTIVE; - if (GTK_IS_WIDGET(frame_gtk->header)) { - draw_title_bar(frame_gtk); - libdecor_frame_toplevel_commit(&frame_gtk->frame); - } - libdecor_frame_unref(&frame_gtk->frame); - } - } else { - frame_gtk->hdr_focus.state &= ~GTK_STATE_FLAG_ACTIVE; - if (GTK_IS_WIDGET(frame_gtk->header)) { - draw_title_bar(frame_gtk); - libdecor_frame_toplevel_commit(&frame_gtk->frame); - } - } - - } - break; - case TITLEBAR_GESTURE_STATE_CONSUMED: - case TITLEBAR_GESTURE_STATE_DISCARDED: - if (state == WL_POINTER_BUTTON_STATE_PRESSED) { - frame_gtk->titlebar_gesture.button_pressed_count++; - } else { - frame_gtk->titlebar_gesture.button_pressed_count--; - if (frame_gtk->titlebar_gesture.button_pressed_count == 0) { - frame_gtk->titlebar_gesture.state = - TITLEBAR_GESTURE_STATE_INIT; - frame_gtk->titlebar_gesture.first_pressed_button = 0; - } - } - break; - } -} - -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_gtk *frame_gtk; - - if (!seat->pointer_focus || !own_surface(seat->pointer_focus)) - return; - - frame_gtk = wl_surface_get_user_data(seat->pointer_focus); - if (!frame_gtk) - return; - - switch (frame_gtk->active->type) { - case SHADOW: - handle_button_on_shadow (frame_gtk, seat, serial, time, button, state); - break; - case HEADER: - handle_button_on_header (frame_gtk, seat, serial, time, button, state); - break; - default: - break; - } -} - -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 -update_touch_focus(struct seat *seat, - struct libdecor_frame_gtk *frame_gtk, - wl_fixed_t x, - wl_fixed_t y) -{ - /* avoid warnings after decoration has been turned off */ - if (GTK_IS_WIDGET(frame_gtk->header) && frame_gtk->touch_active->type == HEADER) { - struct header_element_data new_focus = get_header_focus( - GTK_HEADER_BAR(frame_gtk->header), - wl_fixed_to_int(x), wl_fixed_to_int(y)); - /* only update if widget change so that we keep the state */ - if (frame_gtk->hdr_focus.widget != new_focus.widget) { - frame_gtk->hdr_focus = new_focus; - } - frame_gtk->hdr_focus.state |= GTK_STATE_FLAG_PRELIGHT; - /* redraw with updated button visuals */ - draw_title_bar(frame_gtk); - libdecor_frame_toplevel_commit(&frame_gtk->frame); - } else { - frame_gtk->hdr_focus.type = HEADER_NONE; - } -} - -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; - struct libdecor_frame_gtk *frame_gtk; - - if (!surface || !own_surface(surface)) - return; - - frame_gtk = wl_surface_get_user_data(surface); - if (!frame_gtk) - return; - - seat->touch_focus = surface; - frame_gtk->touch_active = get_component_for_surface(frame_gtk, surface); - - if (!frame_gtk->touch_active) - return; - - update_touch_focus(seat, frame_gtk, x, y); - - /* update decorations */ - draw_decoration(frame_gtk); - libdecor_frame_toplevel_commit(&frame_gtk->frame); - - enum libdecor_resize_edge edge = - LIBDECOR_RESIZE_EDGE_NONE; - switch (frame_gtk->touch_active->type) { - case SHADOW: - edge = component_edge(frame_gtk->touch_active, - wl_fixed_to_int(x), - wl_fixed_to_int(y), - SHADOW_MARGIN); - break; - case HEADER: - switch (frame_gtk->hdr_focus.type) { - case HEADER_MIN: - case HEADER_MAX: - case HEADER_CLOSE: - frame_gtk->hdr_focus.state |= GTK_STATE_FLAG_ACTIVE; - draw_title_bar(frame_gtk); - libdecor_frame_toplevel_commit(&frame_gtk->frame); - break; - default: - if (time - seat->touch_down_time_stamp < - (uint32_t)frame_gtk->plugin_gtk->double_click_time_ms) { - toggle_maximized(&frame_gtk->frame); - } - else if (moveable(frame_gtk)) { - seat->touch_down_time_stamp = time; - libdecor_frame_move(&frame_gtk->frame, - seat->wl_seat, - serial); - } - break; - } - break; - default: - break; - } - if (edge != LIBDECOR_RESIZE_EDGE_NONE && - resizable(frame_gtk)) { - libdecor_frame_resize( - &frame_gtk->frame, - seat->wl_seat, - serial, - edge); - } -} - -static void -touch_up(void *data, - struct wl_touch *wl_touch, - uint32_t serial, - uint32_t time, - int32_t id) -{ - struct seat *seat = data; - struct libdecor_frame_gtk *frame_gtk; - - if (!seat->touch_focus || !own_surface(seat->touch_focus)) - return; - - frame_gtk = wl_surface_get_user_data(seat->touch_focus); - if (!frame_gtk) - return; - - if (!frame_gtk->touch_active) - return; - - switch (frame_gtk->touch_active->type) { - case HEADER: - libdecor_frame_ref(&frame_gtk->frame); - switch (frame_gtk->hdr_focus.type) { - case HEADER_MIN: - if (minimizable(frame_gtk)) { - libdecor_frame_set_minimized( - &frame_gtk->frame); - } - break; - case HEADER_MAX: - toggle_maximized(&frame_gtk->frame); - break; - case HEADER_CLOSE: - if (closeable(frame_gtk)) { - libdecor_frame_close( - &frame_gtk->frame); - seat->touch_focus = NULL; - } - break; - default: - break; - } - /* unset active/clicked state once released */ - frame_gtk->hdr_focus.state &= ~GTK_STATE_FLAG_ACTIVE; - if (GTK_IS_WIDGET(frame_gtk->header)) { - draw_title_bar(frame_gtk); - libdecor_frame_toplevel_commit(&frame_gtk->frame); - } - libdecor_frame_unref(&frame_gtk->frame); - break; - default: - break; - } - - seat->touch_focus = NULL; - frame_gtk->touch_active = NULL; - frame_gtk->hdr_focus.widget = NULL; - frame_gtk->hdr_focus.type = HEADER_NONE; - draw_decoration(frame_gtk); - libdecor_frame_toplevel_commit(&frame_gtk->frame); -} - -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; - struct libdecor_frame_gtk *frame_gtk; - - if (!seat->touch_focus || !own_surface(seat->touch_focus)) - return; - - frame_gtk = wl_surface_get_user_data(seat->touch_focus); - if (!frame_gtk) - return; - - update_touch_focus(seat, frame_gtk, x, y); -} - -static void -touch_frame(void *data, - struct wl_touch *wl_touch) -{ -} - -static void -touch_cancel(void *data, - struct wl_touch *wl_touch) -{ -} - -static 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) { - 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; - } - - if ((capabilities & WL_SEAT_CAPABILITY_TOUCH) && - !seat->wl_touch) { - 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) { - wl_touch_release(seat->wl_touch); - seat->wl_touch = NULL; - } -} - -static void -seat_name(void *data, - struct wl_seat *wl_seat, - const char *name) -{ - /* avoid warning messages when opening/closing popup window */ - struct seat *seat = (struct 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_gtk *plugin_gtk, - uint32_t id, - uint32_t version) -{ - struct seat *seat; - - if (version < 3) { - libdecor_notify_plugin_error( - plugin_gtk->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_gtk = plugin_gtk; - wl_list_init(&seat->cursor_outputs); - wl_list_insert(&plugin_gtk->seat_list, &seat->link); - seat->wl_seat = - wl_registry_bind(plugin_gtk->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_gtk *frame_gtk; - struct seat *seat; - - wl_list_for_each(frame_gtk, - &output->plugin_gtk->visible_frame_list, link) { - bool updated = false; - updated |= redraw_scale(frame_gtk, &frame_gtk->shadow); - if (updated) - libdecor_frame_toplevel_commit(&frame_gtk->frame); - } - wl_list_for_each(seat, &output->plugin_gtk->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_gtk *plugin_gtk, - uint32_t id, - uint32_t version) -{ - struct output *output; - - if (version < 2) { - libdecor_notify_plugin_error( - plugin_gtk->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_gtk = plugin_gtk; - wl_list_insert(&plugin_gtk->output_list, &output->link); - output->id = id; - output->wl_output = - wl_registry_bind(plugin_gtk->wl_registry, - id, &wl_output_interface, - MIN (version, 3)); - wl_proxy_set_tag((struct wl_proxy *) output->wl_output, - &libdecor_gtk_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_gtk *plugin_gtk = user_data; - - if (strcmp(interface, "wl_compositor") == 0) - init_wl_compositor(plugin_gtk, id, version); - else if (strcmp(interface, "wl_subcompositor") == 0) - init_wl_subcompositor(plugin_gtk, id, version); - else if (strcmp(interface, "wl_shm") == 0) - init_wl_shm(plugin_gtk, id, version); - else if (strcmp(interface, "wl_seat") == 0) - init_wl_seat(plugin_gtk, id, version); - else if (strcmp(interface, "wl_output") == 0) - init_wl_output(plugin_gtk, id, version); -} - -static void -remove_surface_outputs(struct border_component *cmpnt, const struct output *output) -{ - struct surface_output *surface_output; - wl_list_for_each(surface_output, &cmpnt->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_gtk *plugin_gtk, - struct output *output) -{ - struct libdecor_frame_gtk *frame_gtk; - struct seat *seat; - - wl_list_for_each(frame_gtk, &plugin_gtk->visible_frame_list, link) { - remove_surface_outputs(&frame_gtk->shadow, output); - } - wl_list_for_each(seat, &plugin_gtk->seat_list, link) { - struct cursor_output *cursor_output; - wl_list_for_each(cursor_output, &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_gtk *plugin_gtk = user_data; - struct output *output; - - wl_list_for_each(output, &plugin_gtk->output_list, link) { - if (output->id == name) { - output_removed(plugin_gtk, 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_gtk *plugin_gtk) -{ - if (!plugin_gtk->wl_compositor) - return false; - if (!plugin_gtk->wl_subcompositor) - return false; - if (!plugin_gtk->wl_shm) - return false; - - return true; -} - -static void -globals_callback(void *user_data, - struct wl_callback *callback, - uint32_t time) -{ - struct libdecor_plugin_gtk *plugin_gtk = user_data; - - wl_callback_destroy(callback); - plugin_gtk->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_gtk *plugin_gtk; - struct wl_display *wl_display; - -#ifdef HAVE_GETTID - /* Only support running on the main thread. */ - if (getpid () != gettid ()) - return NULL; -#endif - - plugin_gtk = zalloc(sizeof *plugin_gtk); - libdecor_plugin_init(&plugin_gtk->plugin, - context, - >k_plugin_iface); - plugin_gtk->context = context; - - wl_list_init(&plugin_gtk->visible_frame_list); - wl_list_init(&plugin_gtk->seat_list); - wl_list_init(&plugin_gtk->output_list); - - /* fetch cursor theme and size*/ - if (!libdecor_get_cursor_settings(&plugin_gtk->cursor_theme_name, - &plugin_gtk->cursor_size)) { - plugin_gtk->cursor_theme_name = NULL; - plugin_gtk->cursor_size = 24; - } - - plugin_gtk->color_scheme_setting = libdecor_get_color_scheme(); - - wl_display = libdecor_get_wl_display(context); - plugin_gtk->wl_registry = wl_display_get_registry(wl_display); - wl_registry_add_listener(plugin_gtk->wl_registry, - ®istry_listener, - plugin_gtk); - - plugin_gtk->globals_callback = wl_display_sync(wl_display); - wl_callback_add_listener(plugin_gtk->globals_callback, - &globals_callback_listener, - plugin_gtk); - wl_display_roundtrip(wl_display); - - if (!has_required_globals(plugin_gtk)) { - fprintf(stderr, "libdecor-gtk-WARNING: Could not get required globals\n"); - libdecor_plugin_gtk_destroy(&plugin_gtk->plugin); - return NULL; - } - - /* setup GTK context */ - gdk_set_allowed_backends("wayland"); - gtk_disable_setlocale(); - - if (!gtk_init_check(NULL, NULL)) { - fprintf(stderr, "libdecor-gtk-WARNING: Failed to initialize GTK\n"); - libdecor_plugin_gtk_destroy(&plugin_gtk->plugin); - return NULL; - } - - g_object_set(gtk_settings_get_default(), - "gtk-application-prefer-dark-theme", - plugin_gtk->color_scheme_setting == LIBDECOR_COLOR_SCHEME_PREFER_DARK, - NULL); - - return &plugin_gtk->plugin; -} - -static struct libdecor_plugin_priority priorities[] = { - { NULL, LIBDECOR_PLUGIN_PRIORITY_HIGH } -}; - -LIBDECOR_EXPORT const struct libdecor_plugin_description -libdecor_plugin_description = { - .api_version = LIBDECOR_PLUGIN_API_VERSION, - .capabilities = LIBDECOR_PLUGIN_CAPABILITY_BASE, - .description = "GTK3 plugin", - .priorities = priorities, - .constructor = libdecor_plugin_new, - .conflicting_symbols = { - "png_free", - "gdk_get_use_xshm", - NULL, - }, -}; |