diff options
| -rw-r--r-- | dwl.c | 942 |
1 files changed, 488 insertions, 454 deletions
@@ -121,15 +121,252 @@ typedef struct { const Arg arg; } Button; -static void focusnext(struct dwl_server *, const Arg *); -static void movemouse(struct dwl_server *, const Arg *); -static void quit(struct dwl_server *, const Arg *); -static void resizemouse(struct dwl_server *, const Arg *); -static void spawn(struct dwl_server *, const Arg *); +/* function declarations */ +static void axisnotify(struct wl_listener *listener, void *data); +static void buttonpress(struct wl_listener *listener, void *data); +static void createkeyboard(struct dwl_server *server, + struct wlr_input_device *device); +static void createnotify(struct wl_listener *listener, void *data); +static void createoutput(struct wl_listener *listener, void *data); +static void createpointer(struct dwl_server *server, + struct wlr_input_device *device); +static void cursorframe(struct wl_listener *listener, void *data); +static void destroynotify(struct wl_listener *listener, void *data); +static void focus(struct dwl_view *view, struct wlr_surface *surface); +static void focusnext(struct dwl_server *server, const Arg *arg); +static void handlemove(struct dwl_server *server, uint32_t time); +static void handleresize(struct dwl_server *server, uint32_t time); +static void inputdevice(struct wl_listener *listener, void *data); +static bool keybinding(struct dwl_server *server, uint32_t mods, xkb_keysym_t sym); +static void keypress(struct wl_listener *listener, void *data); +static void keypressmod(struct wl_listener *listener, void *data); +static void maprequest(struct wl_listener *listener, void *data); +static void motionabsolute(struct wl_listener *listener, void *data); +static void motionnotify(struct dwl_server *server, uint32_t time); +static void motionrelative(struct wl_listener *listener, void *data); +static void movemouse(struct dwl_server *server, const Arg *arg); +static void moverequest(struct wl_listener *listener, void *data); +static void moveresize(struct dwl_view *view, enum dwl_cursor_mode mode, + uint32_t edges); +static void quit(struct dwl_server *server, const Arg *arg); +static void render(struct wlr_surface *surface, int sx, int sy, void *data); +static void renderoutput(struct wl_listener *listener, void *data); +static void resizemouse(struct dwl_server *server, const Arg *arg); +static void resizerequest(struct wl_listener *listener, void *data); +static void setcursor(struct wl_listener *listener, void *data); +static void spawn(struct dwl_server *server, const Arg *arg); +static void unmapnotify(struct wl_listener *listener, void *data); +static bool xytosurface(struct dwl_view *view, double lx, double ly, + struct wlr_surface **surface, double *sx, double *sy); +static struct dwl_view * xytoview(struct dwl_server *server, double lx, double ly, + struct wlr_surface **surface, double *sx, double *sy); #include "config.h" -static void +/* Used to move all of the data necessary to render a surface from the top-level + * frame handler to the per-surface render function. */ +struct render_data { + struct wlr_output *output; + struct wlr_renderer *renderer; + struct dwl_view *view; + struct timespec *when; +}; + +void +axisnotify(struct wl_listener *listener, void *data) +{ + /* This event is forwarded by the cursor when a pointer emits an axis event, + * for example when you move the scroll wheel. */ + struct dwl_server *server = + wl_container_of(listener, server, cursor_axis); + struct wlr_event_pointer_axis *event = data; + /* Notify the client with pointer focus of the axis event. */ + wlr_seat_pointer_notify_axis(server->seat, + event->time_msec, event->orientation, event->delta, + event->delta_discrete, event->source); +} + +void +buttonpress(struct wl_listener *listener, void *data) +{ + /* This event is forwarded by the cursor when a pointer emits a button + * event. */ + struct dwl_server *server = + wl_container_of(listener, server, cursor_button); + struct wlr_event_pointer_button *event = data; + /* Notify the client with pointer focus that a button press has occurred */ + wlr_seat_pointer_notify_button(server->seat, + event->time_msec, event->button, event->state); + double sx, sy; + struct wlr_seat *seat = server->seat; + struct wlr_surface *surface; + struct dwl_view *view = xytoview(server, + server->cursor->x, server->cursor->y, &surface, &sx, &sy); + if (event->state == WLR_BUTTON_RELEASED) { + /* If you released any buttons, we exit interactive move/resize mode. */ + server->cursor_mode = DWL_CURSOR_PASSTHROUGH; + } else { + /* Focus that client if the button was _pressed_ */ + focus(view, surface); + + struct wlr_keyboard *keyboard = wlr_seat_get_keyboard(seat); + uint32_t mods = wlr_keyboard_get_modifiers(keyboard); + for (int i = 0; i < LENGTH(buttons); i++) { + if (event->button == buttons[i].button && + CLEANMASK(mods) == CLEANMASK(buttons[i].mod) && + buttons[i].func) { + buttons[i].func(server, &buttons[i].arg); + } + } + } +} + +void +createkeyboard(struct dwl_server *server, struct wlr_input_device *device) +{ + struct dwl_keyboard *keyboard = + calloc(1, sizeof(struct dwl_keyboard)); + keyboard->server = server; + keyboard->device = device; + + /* We need to prepare an XKB keymap and assign it to the keyboard. This + * assumes the defaults (e.g. layout = "us"). */ + struct xkb_context *context = xkb_context_new(XKB_CONTEXT_NO_FLAGS); + struct xkb_keymap *keymap = xkb_map_new_from_names(context, &xkb_rules, + XKB_KEYMAP_COMPILE_NO_FLAGS); + + wlr_keyboard_set_keymap(device->keyboard, keymap); + xkb_keymap_unref(keymap); + xkb_context_unref(context); + wlr_keyboard_set_repeat_info(device->keyboard, 25, 600); + + /* Here we set up listeners for keyboard events. */ + keyboard->modifiers.notify = keypressmod; + wl_signal_add(&device->keyboard->events.modifiers, &keyboard->modifiers); + keyboard->key.notify = keypress; + wl_signal_add(&device->keyboard->events.key, &keyboard->key); + + wlr_seat_set_keyboard(server->seat, device); + + /* And add the keyboard to our list of keyboards */ + wl_list_insert(&server->keyboards, &keyboard->link); +} + +void +createnotify(struct wl_listener *listener, void *data) +{ + /* This event is raised when wlr_xdg_shell receives a new xdg surface from a + * client, either a toplevel (application window) or popup. */ + struct dwl_server *server = + wl_container_of(listener, server, new_xdg_surface); + struct wlr_xdg_surface *xdg_surface = data; + if (xdg_surface->role != WLR_XDG_SURFACE_ROLE_TOPLEVEL) { + return; + } + + /* Allocate a dwl_view for this surface */ + struct dwl_view *view = + calloc(1, sizeof(struct dwl_view)); + view->server = server; + view->xdg_surface = xdg_surface; + + /* Listen to the various events it can emit */ + view->map.notify = maprequest; + wl_signal_add(&xdg_surface->events.map, &view->map); + view->unmap.notify = unmapnotify; + wl_signal_add(&xdg_surface->events.unmap, &view->unmap); + view->destroy.notify = destroynotify; + wl_signal_add(&xdg_surface->events.destroy, &view->destroy); + + /* cotd */ + struct wlr_xdg_toplevel *toplevel = xdg_surface->toplevel; + view->request_move.notify = moverequest; + wl_signal_add(&toplevel->events.request_move, &view->request_move); + view->request_resize.notify = resizerequest; + wl_signal_add(&toplevel->events.request_resize, &view->request_resize); + + /* Add it to the list of views. */ + wl_list_insert(&server->views, &view->link); +} + +void +createoutput(struct wl_listener *listener, void *data) +{ + /* This event is rasied by the backend when a new output (aka a display or + * monitor) becomes available. */ + struct dwl_server *server = + wl_container_of(listener, server, new_output); + struct wlr_output *wlr_output = data; + + /* Some backends don't have modes. DRM+KMS does, and we need to set a mode + * before we can use the output. The mode is a tuple of (width, height, + * refresh rate), and each monitor supports only a specific set of modes. We + * just pick the monitor's preferred mode, a more sophisticated compositor + * would let the user configure it. */ + if (!wl_list_empty(&wlr_output->modes)) { + struct wlr_output_mode *mode = wlr_output_preferred_mode(wlr_output); + wlr_output_set_mode(wlr_output, mode); + wlr_output_enable(wlr_output, true); + if (!wlr_output_commit(wlr_output)) { + return; + } + } + + /* Allocates and configures our state for this output */ + struct dwl_output *output = + calloc(1, sizeof(struct dwl_output)); + output->wlr_output = wlr_output; + output->server = server; + /* Sets up a listener for the frame notify event. */ + output->frame.notify = renderoutput; + wl_signal_add(&wlr_output->events.frame, &output->frame); + wl_list_insert(&server->outputs, &output->link); + + /* Adds this to the output layout. The add_auto function arranges outputs + * from left-to-right in the order they appear. A more sophisticated + * compositor would let the user configure the arrangement of outputs in the + * layout. */ + wlr_output_layout_add_auto(server->output_layout, wlr_output); + + /* Creating the global adds a wl_output global to the display, which Wayland + * clients can see to find out information about the output (such as + * DPI, scale factor, manufacturer, etc). */ + wlr_output_create_global(wlr_output); +} + +void +createpointer(struct dwl_server *server, struct wlr_input_device *device) +{ + /* We don't do anything special with pointers. All of our pointer handling + * is proxied through wlr_cursor. On another compositor, you might take this + * opportunity to do libinput configuration on the device to set + * acceleration, etc. */ + wlr_cursor_attach_input_device(server->cursor, device); +} + +void +cursorframe(struct wl_listener *listener, void *data) +{ + /* This event is forwarded by the cursor when a pointer emits an frame + * event. Frame events are sent after regular pointer events to group + * multiple events together. For instance, two axis events may happen at the + * same time, in which case a frame event won't be sent in between. */ + struct dwl_server *server = + wl_container_of(listener, server, cursor_frame); + /* Notify the client with pointer focus of the frame event. */ + wlr_seat_pointer_notify_frame(server->seat); +} + +void +destroynotify(struct wl_listener *listener, void *data) +{ + /* Called when the surface is destroyed and should never be shown again. */ + struct dwl_view *view = wl_container_of(listener, view, destroy); + wl_list_remove(&view->link); + free(view); +} + +void focus(struct dwl_view *view, struct wlr_surface *surface) { /* Note: this function only deals with keyboard focus. */ @@ -168,44 +405,7 @@ focus(struct dwl_view *view, struct wlr_surface *surface) keyboard->keycodes, keyboard->num_keycodes, &keyboard->modifiers); } -static void -keypressmod(struct wl_listener *listener, void *data) -{ - /* This event is raised when a modifier key, such as shift or alt, is - * pressed. We simply communicate this to the client. */ - struct dwl_keyboard *keyboard = - wl_container_of(listener, keyboard, modifiers); - /* - * A seat can only have one keyboard, but this is a limitation of the - * Wayland protocol - not wlroots. We assign all connected keyboards to the - * same seat. You can swap out the underlying wlr_keyboard like this and - * wlr_seat handles this transparently. - */ - wlr_seat_set_keyboard(keyboard->server->seat, keyboard->device); - /* Send modifiers to the client. */ - wlr_seat_keyboard_notify_modifiers(keyboard->server->seat, - &keyboard->device->keyboard->modifiers); -} - -static void -quit(struct dwl_server *server, const Arg *arg) -{ - wl_display_terminate(server->wl_display); -} - -static void -spawn(struct dwl_server *server, const Arg *arg) -{ - if (fork() == 0) { - setsid(); - execvp(((char **)arg->v)[0], (char **)arg->v); - fprintf(stderr, "dwl: execvp %s", ((char **)arg->v)[0]); - perror(" failed"); - exit(EXIT_FAILURE); - } -} - -static void +void focusnext(struct dwl_server *server, const Arg *arg) { /* Cycle to the next view */ @@ -222,7 +422,86 @@ focusnext(struct dwl_server *server, const Arg *arg) wl_list_insert(server->views.prev, ¤t_view->link); } -static bool +void +handlemove(struct dwl_server *server, uint32_t time) +{ + /* Move the grabbed view to the new position. */ + server->grabbed_view->x = server->cursor->x - server->grab_x; + server->grabbed_view->y = server->cursor->y - server->grab_y; +} + +void +handleresize(struct dwl_server *server, uint32_t time) +{ + /* + * Resizing the grabbed view can be a little bit complicated, because we + * could be resizing from any corner or edge. This not only resizes the view + * on one or two axes, but can also move the view if you resize from the top + * or left edges (or top-left corner). + * + * Note that I took some shortcuts here. In a more fleshed-out compositor, + * you'd wait for the client to prepare a buffer at the new size, then + * commit any movement that was prepared. + */ + struct dwl_view *view = server->grabbed_view; + double dx = server->cursor->x - server->grab_x; + double dy = server->cursor->y - server->grab_y; + double x = view->x; + double y = view->y; + int width = server->grab_width; + int height = server->grab_height; + if (server->resize_edges & WLR_EDGE_TOP) { + y = server->grab_y + dy; + height -= dy; + if (height < 1) { + y += height; + } + } else if (server->resize_edges & WLR_EDGE_BOTTOM) { + height += dy; + } + if (server->resize_edges & WLR_EDGE_LEFT) { + x = server->grab_x + dx; + width -= dx; + if (width < 1) { + x += width; + } + } else if (server->resize_edges & WLR_EDGE_RIGHT) { + width += dx; + } + view->x = x; + view->y = y; + wlr_xdg_toplevel_set_size(view->xdg_surface, width, height); +} + +void +inputdevice(struct wl_listener *listener, void *data) +{ + /* This event is raised by the backend when a new input device becomes + * available. */ + struct dwl_server *server = + wl_container_of(listener, server, new_input); + struct wlr_input_device *device = data; + switch (device->type) { + case WLR_INPUT_DEVICE_KEYBOARD: + createkeyboard(server, device); + break; + case WLR_INPUT_DEVICE_POINTER: + createpointer(server, device); + break; + default: + break; + } + /* We need to let the wlr_seat know what our capabilities are, which is + * communiciated to the client. In dwl we always have a cursor, even if + * there are no pointer devices, so we always include that capability. */ + uint32_t caps = WL_SEAT_CAPABILITY_POINTER; + if (!wl_list_empty(&server->keyboards)) { + caps |= WL_SEAT_CAPABILITY_KEYBOARD; + } + wlr_seat_set_capabilities(server->seat, caps); +} + +bool keybinding(struct dwl_server *server, uint32_t mods, xkb_keysym_t sym) { /* @@ -242,7 +521,7 @@ keybinding(struct dwl_server *server, uint32_t mods, xkb_keysym_t sym) return handled; } -static void +void keypress(struct wl_listener *listener, void *data) { /* This event is raised when a key is pressed or released. */ @@ -276,194 +555,52 @@ keypress(struct wl_listener *listener, void *data) } } -static void -createkeyboard(struct dwl_server *server, struct wlr_input_device *device) +void +keypressmod(struct wl_listener *listener, void *data) { + /* This event is raised when a modifier key, such as shift or alt, is + * pressed. We simply communicate this to the client. */ struct dwl_keyboard *keyboard = - calloc(1, sizeof(struct dwl_keyboard)); - keyboard->server = server; - keyboard->device = device; - - /* We need to prepare an XKB keymap and assign it to the keyboard. This - * assumes the defaults (e.g. layout = "us"). */ - struct xkb_context *context = xkb_context_new(XKB_CONTEXT_NO_FLAGS); - struct xkb_keymap *keymap = xkb_map_new_from_names(context, &xkb_rules, - XKB_KEYMAP_COMPILE_NO_FLAGS); - - wlr_keyboard_set_keymap(device->keyboard, keymap); - xkb_keymap_unref(keymap); - xkb_context_unref(context); - wlr_keyboard_set_repeat_info(device->keyboard, 25, 600); - - /* Here we set up listeners for keyboard events. */ - keyboard->modifiers.notify = keypressmod; - wl_signal_add(&device->keyboard->events.modifiers, &keyboard->modifiers); - keyboard->key.notify = keypress; - wl_signal_add(&device->keyboard->events.key, &keyboard->key); - - wlr_seat_set_keyboard(server->seat, device); - - /* And add the keyboard to our list of keyboards */ - wl_list_insert(&server->keyboards, &keyboard->link); -} - -static void -createpointer(struct dwl_server *server, struct wlr_input_device *device) -{ - /* We don't do anything special with pointers. All of our pointer handling - * is proxied through wlr_cursor. On another compositor, you might take this - * opportunity to do libinput configuration on the device to set - * acceleration, etc. */ - wlr_cursor_attach_input_device(server->cursor, device); -} - -static void -inputdevice(struct wl_listener *listener, void *data) -{ - /* This event is raised by the backend when a new input device becomes - * available. */ - struct dwl_server *server = - wl_container_of(listener, server, new_input); - struct wlr_input_device *device = data; - switch (device->type) { - case WLR_INPUT_DEVICE_KEYBOARD: - createkeyboard(server, device); - break; - case WLR_INPUT_DEVICE_POINTER: - createpointer(server, device); - break; - default: - break; - } - /* We need to let the wlr_seat know what our capabilities are, which is - * communiciated to the client. In dwl we always have a cursor, even if - * there are no pointer devices, so we always include that capability. */ - uint32_t caps = WL_SEAT_CAPABILITY_POINTER; - if (!wl_list_empty(&server->keyboards)) { - caps |= WL_SEAT_CAPABILITY_KEYBOARD; - } - wlr_seat_set_capabilities(server->seat, caps); -} - -static void -setcursor(struct wl_listener *listener, void *data) -{ - struct dwl_server *server = wl_container_of( - listener, server, request_cursor); - /* This event is rasied by the seat when a client provides a cursor image */ - struct wlr_seat_pointer_request_set_cursor_event *event = data; - struct wlr_seat_client *focused_client = - server->seat->pointer_state.focused_client; - /* This can be sent by any client, so we check to make sure this one is - * actually has pointer focus first. */ - if (focused_client == event->seat_client) { - /* Once we've vetted the client, we can tell the cursor to use the - * provided surface as the cursor image. It will set the hardware cursor - * on the output that it's currently on and continue to do so as the - * cursor moves between outputs. */ - wlr_cursor_set_surface(server->cursor, event->surface, - event->hotspot_x, event->hotspot_y); - } -} - -static bool -xytosurface(struct dwl_view *view, double lx, double ly, - struct wlr_surface **surface, double *sx, double *sy) -{ + wl_container_of(listener, keyboard, modifiers); /* - * XDG toplevels may have nested surfaces, such as popup windows for context - * menus or tooltips. This function tests if any of those are underneath the - * coordinates lx and ly (in output Layout Coordinates). If so, it sets the - * surface pointer to that wlr_surface and the sx and sy coordinates to the - * coordinates relative to that surface's top-left corner. + * A seat can only have one keyboard, but this is a limitation of the + * Wayland protocol - not wlroots. We assign all connected keyboards to the + * same seat. You can swap out the underlying wlr_keyboard like this and + * wlr_seat handles this transparently. */ - double view_sx = lx - view->x; - double view_sy = ly - view->y; - - struct wlr_surface_state *state = &view->xdg_surface->surface->current; - - double _sx, _sy; - struct wlr_surface *_surface = NULL; - _surface = wlr_xdg_surface_surface_at( - view->xdg_surface, view_sx, view_sy, &_sx, &_sy); - - if (_surface != NULL) { - *sx = _sx; - *sy = _sy; - *surface = _surface; - return true; - } - - return false; -} - -static struct dwl_view * -xytoview(struct dwl_server *server, double lx, double ly, - struct wlr_surface **surface, double *sx, double *sy) -{ - /* This iterates over all of our surfaces and attempts to find one under the - * cursor. This relies on server->views being ordered from top-to-bottom. */ - struct dwl_view *view; - wl_list_for_each(view, &server->views, link) { - if (xytosurface(view, lx, ly, surface, sx, sy)) { - return view; - } - } - return NULL; + wlr_seat_set_keyboard(keyboard->server->seat, keyboard->device); + /* Send modifiers to the client. */ + wlr_seat_keyboard_notify_modifiers(keyboard->server->seat, + &keyboard->device->keyboard->modifiers); } -static void -handlemove(struct dwl_server *server, uint32_t time) +void +maprequest(struct wl_listener *listener, void *data) { - /* Move the grabbed view to the new position. */ - server->grabbed_view->x = server->cursor->x - server->grab_x; - server->grabbed_view->y = server->cursor->y - server->grab_y; + /* Called when the surface is mapped, or ready to display on-screen. */ + struct dwl_view *view = wl_container_of(listener, view, map); + view->mapped = true; + focus(view, view->xdg_surface->surface); } -static void -handleresize(struct dwl_server *server, uint32_t time) +void +motionabsolute(struct wl_listener *listener, void *data) { - /* - * Resizing the grabbed view can be a little bit complicated, because we - * could be resizing from any corner or edge. This not only resizes the view - * on one or two axes, but can also move the view if you resize from the top - * or left edges (or top-left corner). - * - * Note that I took some shortcuts here. In a more fleshed-out compositor, - * you'd wait for the client to prepare a buffer at the new size, then - * commit any movement that was prepared. - */ - struct dwl_view *view = server->grabbed_view; - double dx = server->cursor->x - server->grab_x; - double dy = server->cursor->y - server->grab_y; - double x = view->x; - double y = view->y; - int width = server->grab_width; - int height = server->grab_height; - if (server->resize_edges & WLR_EDGE_TOP) { - y = server->grab_y + dy; - height -= dy; - if (height < 1) { - y += height; - } - } else if (server->resize_edges & WLR_EDGE_BOTTOM) { - height += dy; - } - if (server->resize_edges & WLR_EDGE_LEFT) { - x = server->grab_x + dx; - width -= dx; - if (width < 1) { - x += width; - } - } else if (server->resize_edges & WLR_EDGE_RIGHT) { - width += dx; - } - view->x = x; - view->y = y; - wlr_xdg_toplevel_set_size(view->xdg_surface, width, height); + /* This event is forwarded by the cursor when a pointer emits an _absolute_ + * motion event, from 0..1 on each axis. This happens, for example, when + * wlroots is running under a Wayland window rather than KMS+DRM, and you + * move the mouse over the window. You could enter the window from any edge, + * so we have to warp the mouse there. There is also some hardware which + * emits these events. */ + struct dwl_server *server = + wl_container_of(listener, server, cursor_motion_absolute); + struct wlr_event_pointer_motion_absolute *event = data; + wlr_cursor_warp_absolute(server->cursor, event->device, event->x, event->y); + motionnotify(server, event->time_msec); } -static void motionnotify(struct dwl_server *server, uint32_t time) +void +motionnotify(struct dwl_server *server, uint32_t time) { /* If the mode is non-passthrough, delegate to those functions. */ if (server->cursor_mode == DWL_CURSOR_MOVE) { @@ -510,7 +647,7 @@ static void motionnotify(struct dwl_server *server, uint32_t time) } } -static void +void motionrelative(struct wl_listener *listener, void *data) { /* This event is forwarded by the cursor when a pointer emits a _relative_ @@ -528,94 +665,67 @@ motionrelative(struct wl_listener *listener, void *data) motionnotify(server, event->time_msec); } -static void -motionabsolute(struct wl_listener *listener, void *data) -{ - /* This event is forwarded by the cursor when a pointer emits an _absolute_ - * motion event, from 0..1 on each axis. This happens, for example, when - * wlroots is running under a Wayland window rather than KMS+DRM, and you - * move the mouse over the window. You could enter the window from any edge, - * so we have to warp the mouse there. There is also some hardware which - * emits these events. */ - struct dwl_server *server = - wl_container_of(listener, server, cursor_motion_absolute); - struct wlr_event_pointer_motion_absolute *event = data; - wlr_cursor_warp_absolute(server->cursor, event->device, event->x, event->y); - motionnotify(server, event->time_msec); -} - -static void -buttonpress(struct wl_listener *listener, void *data) +void +movemouse(struct dwl_server *server, const Arg *arg) { - /* This event is forwarded by the cursor when a pointer emits a button - * event. */ - struct dwl_server *server = - wl_container_of(listener, server, cursor_button); - struct wlr_event_pointer_button *event = data; - /* Notify the client with pointer focus that a button press has occurred */ - wlr_seat_pointer_notify_button(server->seat, - event->time_msec, event->button, event->state); double sx, sy; - struct wlr_seat *seat = server->seat; struct wlr_surface *surface; struct dwl_view *view = xytoview(server, server->cursor->x, server->cursor->y, &surface, &sx, &sy); - if (event->state == WLR_BUTTON_RELEASED) { - /* If you released any buttons, we exit interactive move/resize mode. */ - server->cursor_mode = DWL_CURSOR_PASSTHROUGH; - } else { - /* Focus that client if the button was _pressed_ */ - focus(view, surface); - - struct wlr_keyboard *keyboard = wlr_seat_get_keyboard(seat); - uint32_t mods = wlr_keyboard_get_modifiers(keyboard); - for (int i = 0; i < LENGTH(buttons); i++) { - if (event->button == buttons[i].button && - CLEANMASK(mods) == CLEANMASK(buttons[i].mod) && - buttons[i].func) { - buttons[i].func(server, &buttons[i].arg); - } - } + if (!view) { + return; } + moveresize(view, DWL_CURSOR_MOVE, 0); } -static void -axisnotify(struct wl_listener *listener, void *data) +void +moverequest(struct wl_listener *listener, void *data) { - /* This event is forwarded by the cursor when a pointer emits an axis event, - * for example when you move the scroll wheel. */ - struct dwl_server *server = - wl_container_of(listener, server, cursor_axis); - struct wlr_event_pointer_axis *event = data; - /* Notify the client with pointer focus of the axis event. */ - wlr_seat_pointer_notify_axis(server->seat, - event->time_msec, event->orientation, event->delta, - event->delta_discrete, event->source); + /* This event is raised when a client would like to begin an interactive + * move, typically because the user clicked on their client-side + * decorations. Note that a more sophisticated compositor should check the + * provied serial against a list of button press serials sent to this + * client, to prevent the client from requesting this whenever they want. */ + struct dwl_view *view = wl_container_of(listener, view, request_move); + moveresize(view, DWL_CURSOR_MOVE, 0); } -static void -cursorframe(struct wl_listener *listener, void *data) +void +moveresize(struct dwl_view *view, enum dwl_cursor_mode mode, uint32_t edges) { - /* This event is forwarded by the cursor when a pointer emits an frame - * event. Frame events are sent after regular pointer events to group - * multiple events together. For instance, two axis events may happen at the - * same time, in which case a frame event won't be sent in between. */ - struct dwl_server *server = - wl_container_of(listener, server, cursor_frame); - /* Notify the client with pointer focus of the frame event. */ - wlr_seat_pointer_notify_frame(server->seat); + /* This function sets up an interactive move or resize operation, where the + * compositor stops propagating pointer events to clients and instead + * consumes them itself, to move or resize windows. */ + struct dwl_server *server = view->server; + struct wlr_surface *focused_surface = + server->seat->pointer_state.focused_surface; + if (view->xdg_surface->surface != focused_surface) { + /* Deny move/resize requests from unfocused clients. */ + return; + } + server->grabbed_view = view; + server->cursor_mode = mode; + struct wlr_box geo_box; + wlr_xdg_surface_get_geometry(view->xdg_surface, &geo_box); + if (mode == DWL_CURSOR_MOVE) { + server->grab_x = server->cursor->x - view->x; + server->grab_y = server->cursor->y - view->y; + } else { + server->grab_x = server->cursor->x + geo_box.x; + server->grab_y = server->cursor->y + geo_box.y; + } + server->grab_width = geo_box.width; + server->grab_height = geo_box.height; + server->resize_edges = edges; } -/* Used to move all of the data necessary to render a surface from the top-level - * frame handler to the per-surface render function. */ -struct render_data { - struct wlr_output *output; - struct wlr_renderer *renderer; - struct dwl_view *view; - struct timespec *when; -}; +void +quit(struct dwl_server *server, const Arg *arg) +{ + wl_display_terminate(server->wl_display); +} -static void +void render(struct wlr_surface *surface, int sx, int sy, void *data) { /* This function is called for every surface that needs to be rendered. */ @@ -677,7 +787,7 @@ render(struct wlr_surface *surface, int sx, int sy, void *data) wlr_surface_send_frame_done(surface, rdata->when); } -static void +void renderoutput(struct wl_listener *listener, void *data) { /* This function is called every time an output is ready to display a frame, @@ -736,121 +846,7 @@ renderoutput(struct wl_listener *listener, void *data) wlr_output_commit(output->wlr_output); } -static void -createoutput(struct wl_listener *listener, void *data) -{ - /* This event is rasied by the backend when a new output (aka a display or - * monitor) becomes available. */ - struct dwl_server *server = - wl_container_of(listener, server, new_output); - struct wlr_output *wlr_output = data; - - /* Some backends don't have modes. DRM+KMS does, and we need to set a mode - * before we can use the output. The mode is a tuple of (width, height, - * refresh rate), and each monitor supports only a specific set of modes. We - * just pick the monitor's preferred mode, a more sophisticated compositor - * would let the user configure it. */ - if (!wl_list_empty(&wlr_output->modes)) { - struct wlr_output_mode *mode = wlr_output_preferred_mode(wlr_output); - wlr_output_set_mode(wlr_output, mode); - wlr_output_enable(wlr_output, true); - if (!wlr_output_commit(wlr_output)) { - return; - } - } - - /* Allocates and configures our state for this output */ - struct dwl_output *output = - calloc(1, sizeof(struct dwl_output)); - output->wlr_output = wlr_output; - output->server = server; - /* Sets up a listener for the frame notify event. */ - output->frame.notify = renderoutput; - wl_signal_add(&wlr_output->events.frame, &output->frame); - wl_list_insert(&server->outputs, &output->link); - - /* Adds this to the output layout. The add_auto function arranges outputs - * from left-to-right in the order they appear. A more sophisticated - * compositor would let the user configure the arrangement of outputs in the - * layout. */ - wlr_output_layout_add_auto(server->output_layout, wlr_output); - - /* Creating the global adds a wl_output global to the display, which Wayland - * clients can see to find out information about the output (such as - * DPI, scale factor, manufacturer, etc). */ - wlr_output_create_global(wlr_output); -} - -static void -maprequest(struct wl_listener *listener, void *data) -{ - /* Called when the surface is mapped, or ready to display on-screen. */ - struct dwl_view *view = wl_container_of(listener, view, map); - view->mapped = true; - focus(view, view->xdg_surface->surface); -} - -static void -unmapnotify(struct wl_listener *listener, void *data) -{ - /* Called when the surface is unmapped, and should no longer be shown. */ - struct dwl_view *view = wl_container_of(listener, view, unmap); - view->mapped = false; -} - -static void -destroynotify(struct wl_listener *listener, void *data) -{ - /* Called when the surface is destroyed and should never be shown again. */ - struct dwl_view *view = wl_container_of(listener, view, destroy); - wl_list_remove(&view->link); - free(view); -} - -static void -moveresize(struct dwl_view *view, - enum dwl_cursor_mode mode, uint32_t edges) -{ - /* This function sets up an interactive move or resize operation, where the - * compositor stops propagating pointer events to clients and instead - * consumes them itself, to move or resize windows. */ - struct dwl_server *server = view->server; - struct wlr_surface *focused_surface = - server->seat->pointer_state.focused_surface; - if (view->xdg_surface->surface != focused_surface) { - /* Deny move/resize requests from unfocused clients. */ - return; - } - server->grabbed_view = view; - server->cursor_mode = mode; - struct wlr_box geo_box; - wlr_xdg_surface_get_geometry(view->xdg_surface, &geo_box); - if (mode == DWL_CURSOR_MOVE) { - server->grab_x = server->cursor->x - view->x; - server->grab_y = server->cursor->y - view->y; - } else { - server->grab_x = server->cursor->x + geo_box.x; - server->grab_y = server->cursor->y + geo_box.y; - } - server->grab_width = geo_box.width; - server->grab_height = geo_box.height; - server->resize_edges = edges; -} - -static void -movemouse(struct dwl_server *server, const Arg *arg) -{ - double sx, sy; - struct wlr_surface *surface; - struct dwl_view *view = xytoview(server, - server->cursor->x, server->cursor->y, &surface, &sx, &sy); - if (!view) { - return; - } - moveresize(view, DWL_CURSOR_MOVE, 0); -} - -static void +void resizemouse(struct dwl_server *server, const Arg *arg) { double sx, sy; @@ -868,19 +864,7 @@ resizemouse(struct dwl_server *server, const Arg *arg) moveresize(view, DWL_CURSOR_RESIZE, WLR_EDGE_BOTTOM|WLR_EDGE_RIGHT); } -static void -moverequest(struct wl_listener *listener, void *data) -{ - /* This event is raised when a client would like to begin an interactive - * move, typically because the user clicked on their client-side - * decorations. Note that a more sophisticated compositor should check the - * provied serial against a list of button press serials sent to this - * client, to prevent the client from requesting this whenever they want. */ - struct dwl_view *view = wl_container_of(listener, view, request_move); - moveresize(view, DWL_CURSOR_MOVE, 0); -} - -static void +void resizerequest(struct wl_listener *listener, void *data) { /* This event is raised when a client would like to begin an interactive @@ -893,41 +877,91 @@ resizerequest(struct wl_listener *listener, void *data) moveresize(view, DWL_CURSOR_RESIZE, event->edges); } -static void -createnotify(struct wl_listener *listener, void *data) +void +setcursor(struct wl_listener *listener, void *data) { - /* This event is raised when wlr_xdg_shell receives a new xdg surface from a - * client, either a toplevel (application window) or popup. */ - struct dwl_server *server = - wl_container_of(listener, server, new_xdg_surface); - struct wlr_xdg_surface *xdg_surface = data; - if (xdg_surface->role != WLR_XDG_SURFACE_ROLE_TOPLEVEL) { - return; + struct dwl_server *server = wl_container_of( + listener, server, request_cursor); + /* This event is rasied by the seat when a client provides a cursor image */ + struct wlr_seat_pointer_request_set_cursor_event *event = data; + struct wlr_seat_client *focused_client = + server->seat->pointer_state.focused_client; + /* This can be sent by any client, so we check to make sure this one is + * actually has pointer focus first. */ + if (focused_client == event->seat_client) { + /* Once we've vetted the client, we can tell the cursor to use the + * provided surface as the cursor image. It will set the hardware cursor + * on the output that it's currently on and continue to do so as the + * cursor moves between outputs. */ + wlr_cursor_set_surface(server->cursor, event->surface, + event->hotspot_x, event->hotspot_y); } +} - /* Allocate a dwl_view for this surface */ - struct dwl_view *view = - calloc(1, sizeof(struct dwl_view)); - view->server = server; - view->xdg_surface = xdg_surface; +void +spawn(struct dwl_server *server, const Arg *arg) +{ + if (fork() == 0) { + setsid(); + execvp(((char **)arg->v)[0], (char **)arg->v); + fprintf(stderr, "dwl: execvp %s", ((char **)arg->v)[0]); + perror(" failed"); + exit(EXIT_FAILURE); + } +} - /* Listen to the various events it can emit */ - view->map.notify = maprequest; - wl_signal_add(&xdg_surface->events.map, &view->map); - view->unmap.notify = unmapnotify; - wl_signal_add(&xdg_surface->events.unmap, &view->unmap); - view->destroy.notify = destroynotify; - wl_signal_add(&xdg_surface->events.destroy, &view->destroy); +void +unmapnotify(struct wl_listener *listener, void *data) +{ + /* Called when the surface is unmapped, and should no longer be shown. */ + struct dwl_view *view = wl_container_of(listener, view, unmap); + view->mapped = false; +} - /* cotd */ - struct wlr_xdg_toplevel *toplevel = xdg_surface->toplevel; - view->request_move.notify = moverequest; - wl_signal_add(&toplevel->events.request_move, &view->request_move); - view->request_resize.notify = resizerequest; - wl_signal_add(&toplevel->events.request_resize, &view->request_resize); +bool +xytosurface(struct dwl_view *view, double lx, double ly, + struct wlr_surface **surface, double *sx, double *sy) +{ + /* + * XDG toplevels may have nested surfaces, such as popup windows for context + * menus or tooltips. This function tests if any of those are underneath the + * coordinates lx and ly (in output Layout Coordinates). If so, it sets the + * surface pointer to that wlr_surface and the sx and sy coordinates to the + * coordinates relative to that surface's top-left corner. + */ + double view_sx = lx - view->x; + double view_sy = ly - view->y; - /* Add it to the list of views. */ - wl_list_insert(&server->views, &view->link); + struct wlr_surface_state *state = &view->xdg_surface->surface->current; + + double _sx, _sy; + struct wlr_surface *_surface = NULL; + _surface = wlr_xdg_surface_surface_at( + view->xdg_surface, view_sx, view_sy, &_sx, &_sy); + + if (_surface != NULL) { + *sx = _sx; + *sy = _sy; + *surface = _surface; + return true; + } + + return false; +} + +struct dwl_view * +xytoview(struct dwl_server *server, double lx, double ly, + struct wlr_surface **surface, double *sx, double *sy) +{ + /* This iterates over all of our surfaces and attempts to find one under the + * cursor. This relies on server->views being ordered from top-to-bottom. */ + struct dwl_view *view; + wl_list_for_each(view, &server->views, link) { + if (xytosurface(view, lx, ly, surface, sx, sy)) { + return view; + } + } + return NULL; } int |