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-rw-r--r--dwl.c942
1 files changed, 488 insertions, 454 deletions
diff --git a/dwl.c b/dwl.c
index 33eb732..b7f1d63 100644
--- a/dwl.c
+++ b/dwl.c
@@ -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, &current_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