#include <wlr/types/wlr_gamma_control_v1.h>
#include <wlr/types/wlr_primary_selection_v1.h>
-static struct tinywl_view *next_toplevel(struct tinywl_view *current);
-static bool is_toplevel(struct tinywl_view *view);
-static void process_cursor_move(struct tinywl_server *server, uint32_t time);
-static void begin_interactive(struct tinywl_view *view,
- enum tinywl_cursor_mode mode, uint32_t edges);
-
-/**
- * Request that this toplevel surface show itself in an activated or
- * deactivated state.
- */
-static void set_activated(struct wlr_surface *s, bool activated) {
- if (wlr_surface_is_xdg_surface(s)) {
- struct wlr_xdg_surface *previous;
- previous = wlr_xdg_surface_from_wlr_surface(s);
- wlr_xdg_toplevel_set_activated(previous, activated);
- } else {
- struct wlr_xwayland_surface *previous;
- previous = wlr_xwayland_surface_from_wlr_surface(s);
- wlr_xwayland_surface_activate(previous, activated);
- }
-}
-
-static void activate_view(struct tinywl_view *view) {
- if (view->type == LAB_XDG_SHELL_VIEW) {
- wlr_xdg_toplevel_set_activated(view->xdg_surface, true);
- } else if (view->type == LAB_XWAYLAND_VIEW) {
- wlr_xwayland_surface_activate(view->xwayland_surface, true);
- } else {
- fprintf(stderr, "warn: view was of unknown type (%s)\n", __func__);
- }
-}
-
-static void move_to_front(struct tinywl_view *view) {
- wl_list_remove(&view->link);
- wl_list_insert(&view->server->views, &view->link);
-}
-
-static void focus_view(struct tinywl_view *view, struct wlr_surface *surface) {
- /* Note: this function only deals with keyboard focus. */
- if (view == NULL) {
- return;
- }
- struct tinywl_server *server = view->server;
- struct wlr_seat *seat = server->seat;
- struct wlr_surface *prev_surface;
-
- prev_surface = seat->keyboard_state.focused_surface;
- if (prev_surface == surface) {
- /* Don't re-focus an already focused surface. */
- return;
- }
- if (view->type == LAB_XWAYLAND_VIEW) {
- /* Don't focus on menus, etc */
- if (!wlr_xwayland_or_surface_wants_focus(view->xwayland_surface)) {
- return;
- }
- }
- if (prev_surface) {
- set_activated(seat->keyboard_state.focused_surface, false);
- }
-
- struct wlr_keyboard *keyboard = wlr_seat_get_keyboard(seat);
- move_to_front(view);
- activate_view(view);
- /*
- * Tell the seat to have the keyboard enter this surface. wlroots will
- * keep track of this and automatically send key events to the
- * appropriate clients without additional work on your part.
- */
- wlr_seat_keyboard_notify_enter(seat, view->surface, keyboard->keycodes,
- keyboard->num_keycodes, &keyboard->modifiers);
-}
-
static struct tinywl_view *last_toplevel(struct tinywl_server *server) {
struct tinywl_view *view;
return NULL;
}
-static struct tinywl_view *first_toplevel(struct tinywl_server *server) {
- struct tinywl_view *view;
-
- wl_list_for_each(view, &server->views, link) {
- if (!view->been_mapped) {
- continue;
- }
- if (is_toplevel(view)) {
- return view;
- }
- }
- fprintf(stderr, "warn: found no toplevel view (%s)\n", __func__);
- return NULL;
-}
-
static void view_focus_last_toplevel(struct tinywl_server *server) {
/* TODO: write view_nr_toplevel_views() */
if (wl_list_length(&server->views) < 2) {
focus_view(view, view->surface);
}
-static void view_focus_next_toplevel(struct tinywl_server *server) {
- struct tinywl_view *view;
- view = first_toplevel(server);
- view = next_toplevel(view);
- focus_view(view, view->surface);
-}
-
static void keyboard_handle_modifiers(
struct wl_listener *listener, void *data) {
/* This event is raised when a modifier key, such as shift or alt, is
&keyboard->device->keyboard->modifiers);
}
-static int xwl_nr_parents(struct tinywl_view *view) {
- struct wlr_xwayland_surface *s = view->xwayland_surface;
- int i = 0;
-
- if (!s) {
- fprintf(stderr, "warn: (%s) no xwayland surface\n", __func__);
- return -1;
- }
- while (s->parent) {
- s = s->parent;
- ++i;
- }
- return i;
-}
-
-static bool is_toplevel(struct tinywl_view *view) {
- switch (view->type) {
- case LAB_XWAYLAND_VIEW:
- return xwl_nr_parents(view) > 0 ? false : true;
- case LAB_XDG_SHELL_VIEW:
- return view->xdg_surface->role == WLR_XDG_SURFACE_ROLE_TOPLEVEL;
- }
- return false;
-}
-
static void xdg_debug_show_one_view(struct tinywl_view *view) {
fprintf(stderr, "XDG ");
switch (view->xdg_surface->role) {
debug_show_one_view(view);
}
-static struct tinywl_view *next_toplevel(struct tinywl_view *current) {
- struct tinywl_view *tmp = current;
-
- goto inside;
- while (!tmp->been_mapped || !is_toplevel(tmp)) {
-inside:
- tmp = wl_container_of(tmp->link.next, tmp, link);
- }
- return tmp;
-}
-
static bool handle_keybinding(struct tinywl_server *server, xkb_keysym_t sym) {
/*
* Here we handle compositor keybindings. This is when the compositor is
}
}
-static bool view_at(struct tinywl_view *view,
+bool view_at(struct tinywl_view *view,
double lx, double ly, struct wlr_surface **surface,
double *sx, double *sy) {
/*
wlr_seat_pointer_notify_frame(server->seat);
}
-/*
- * 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 tinywl_view *view;
- struct timespec *when;
-};
-
-static void render_decorations(struct wlr_output *output, struct tinywl_view *view) {
- if (!view->surface)
- return;
- if (view->type != LAB_XWAYLAND_VIEW)
- return;
- if (!is_toplevel(view))
- return;
-
- struct wlr_box box = {
- .x = view->x - XWL_WINDOW_BORDER,
- .y = view->y - XWL_TITLEBAR_HEIGHT - XWL_WINDOW_BORDER,
- .width = view->surface->current.width + 2 * XWL_WINDOW_BORDER,
- .height = view->surface->current.height + XWL_TITLEBAR_HEIGHT +
- 2 * XWL_WINDOW_BORDER,
- };
-
- float matrix[9];
- wlr_matrix_project_box(matrix, &box, WL_OUTPUT_TRANSFORM_NORMAL, 0,
- output->transform_matrix);
-
- float color[] = { 0.2, 0.2, 0.7, 0.9 };
- wlr_render_quad_with_matrix(view->server->renderer, color, matrix);
-}
-
-static void render_surface(struct wlr_surface *surface,
- int sx, int sy, void *data) {
- /* This function is called for every surface that needs to be rendered. */
- struct render_data *rdata = data;
- struct tinywl_view *view = rdata->view;
- struct wlr_output *output = rdata->output;
-
- /* We first obtain a wlr_texture, which is a GPU resource. wlroots
- * automatically handles negotiating these with the client. The underlying
- * resource could be an opaque handle passed from the client, or the client
- * could have sent a pixel buffer which we copied to the GPU, or a few other
- * means. You don't have to worry about this, wlroots takes care of it. */
- struct wlr_texture *texture = wlr_surface_get_texture(surface);
- if (texture == NULL) {
- return;
- }
-
- /* The view has a position in layout coordinates. If you have two displays,
- * one next to the other, both 1080p, a view on the rightmost display might
- * have layout coordinates of 2000,100. We need to translate that to
- * output-local coordinates, or (2000 - 1920). */
- double ox = 0, oy = 0;
- wlr_output_layout_output_coords(
- view->server->output_layout, output, &ox, &oy);
- ox += view->x + sx;
- oy += view->y + sy;
-
- /* We also have to apply the scale factor for HiDPI outputs. This is only
- * part of the puzzle, TinyWL does not fully support HiDPI. */
- struct wlr_box box = {
- .x = ox * output->scale,
- .y = oy * output->scale,
- .width = surface->current.width * output->scale,
- .height = surface->current.height * output->scale,
- };
-
- /*
- * Those familiar with OpenGL are also familiar with the role of matricies
- * in graphics programming. We need to prepare a matrix to render the view
- * with. wlr_matrix_project_box is a helper which takes a box with a desired
- * x, y coordinates, width and height, and an output geometry, then
- * prepares an orthographic projection and multiplies the necessary
- * transforms to produce a model-view-projection matrix.
- *
- * Naturally you can do this any way you like, for example to make a 3D
- * compositor.
- */
- float matrix[9];
- enum wl_output_transform transform =
- wlr_output_transform_invert(surface->current.transform);
- wlr_matrix_project_box(matrix, &box, transform, 0,
- output->transform_matrix);
-
- /* This takes our matrix, the texture, and an alpha, and performs the actual
- * rendering on the GPU. */
- wlr_render_texture_with_matrix(rdata->renderer, texture, matrix, 1);
-
- /* This lets the client know that we've displayed that frame and it can
- * prepare another one now if it likes. */
- wlr_surface_send_frame_done(surface, rdata->when);
-}
-
-static void output_frame(struct wl_listener *listener, void *data) {
- /* This function is called every time an output is ready to display a frame,
- * generally at the output's refresh rate (e.g. 60Hz). */
- struct tinywl_output *output =
- wl_container_of(listener, output, frame);
- struct wlr_renderer *renderer = output->server->renderer;
-
- struct timespec now;
- clock_gettime(CLOCK_MONOTONIC, &now);
-
- /* wlr_output_attach_render makes the OpenGL context current. */
- if (!wlr_output_attach_render(output->wlr_output, NULL)) {
- return;
- }
- /* The "effective" resolution can change if you rotate your outputs. */
- int width, height;
- wlr_output_effective_resolution(output->wlr_output, &width, &height);
- /* Begin the renderer (calls glViewport and some other GL sanity checks) */
- wlr_renderer_begin(renderer, width, height);
-
- float color[4] = {0.3, 0.3, 0.3, 1.0};
- wlr_renderer_clear(renderer, color);
-
- /* Each subsequent window we render is rendered on top of the last. Because
- * our view list is ordered front-to-back, we iterate over it backwards. */
- struct tinywl_view *view;
- wl_list_for_each_reverse(view, &output->server->views, link) {
- if (!view->mapped) {
- /* An unmapped view should not be rendered. */
- continue;
- }
- struct render_data rdata = {
- .output = output->wlr_output,
- .view = view,
- .renderer = renderer,
- .when = &now,
- };
-
- render_decorations(output->wlr_output, view);
-
- /* This calls our render_surface function for each surface among the
- * xdg_surface's toplevel and popups. */
- if (view->type == LAB_XDG_SHELL_VIEW) {
- wlr_xdg_surface_for_each_surface(view->xdg_surface,
- render_surface, &rdata);
- } else if (view->type == LAB_XWAYLAND_VIEW) {
- render_surface(view->xwayland_surface->surface, 0, 0,
- &rdata);
- }
- }
-
- /* Hardware cursors are rendered by the GPU on a separate plane, and can be
- * moved around without re-rendering what's beneath them - which is more
- * efficient. However, not all hardware supports hardware cursors. For this
- * reason, wlroots provides a software fallback, which we ask it to render
- * here. wlr_cursor handles configuring hardware vs software cursors for you,
- * and this function is a no-op when hardware cursors are in use. */
- wlr_output_render_software_cursors(output->wlr_output, NULL);
-
- /* Conclude rendering and swap the buffers, showing the final frame
- * on-screen. */
- wlr_renderer_end(renderer);
- wlr_output_commit(output->wlr_output);
-}
-
-static void server_new_output(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 tinywl_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 first, a more sophisticated compositor would let the user
- * configure it or pick the mode the display advertises as preferred. */
- if (!wl_list_empty(&wlr_output->modes)) {
- struct wlr_output_mode *mode =
- wl_container_of(wlr_output->modes.prev, mode, link);
- wlr_output_set_mode(wlr_output, mode);
- }
-
- /* Allocates and configures our state for this output */
- struct tinywl_output *output =
- calloc(1, sizeof(struct tinywl_output));
- output->wlr_output = wlr_output;
- output->server = server;
- /* Sets up a listener for the frame notify event. */
- output->frame.notify = output_frame;
- 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 xwl_surface_map(struct wl_listener *listener, void *data) {
- struct tinywl_view *view = wl_container_of(listener, view, map);
- view->mapped = true;
- view->been_mapped = true;
- view->x = view->xwayland_surface->x;
- view->y = view->xwayland_surface->y;
- view->surface = view->xwayland_surface->surface;
- move_to_front(view);
- focus_view(view, view->xwayland_surface->surface);
-}
-
-static void xwl_surface_unmap(struct wl_listener *listener, void *data) {
- struct tinywl_view *view = wl_container_of(listener, view, unmap);
- view->mapped = false;
- if (is_toplevel(view))
- view_focus_next_toplevel(view->server);
-}
-
-static void xwl_surface_destroy(struct wl_listener *listener, void *data) {
- struct tinywl_view *view = wl_container_of(listener, view, destroy);
- wl_list_remove(&view->link);
- free(view);
-}
-
-static void xwl_surface_configure(struct wl_listener *listener, void *data) {
- struct tinywl_view *view = wl_container_of(listener, view, request_configure);
- struct wlr_xwayland_surface_configure_event *event = data;
- wlr_xwayland_surface_configure(view->xwayland_surface, event->x, event->y,
- event->width, event->height);
-}
-
-void server_new_xwayland_surface(struct wl_listener *listener, void *data) {
- struct tinywl_server *server =
- wl_container_of(listener, server, new_xwayland_surface);
- struct wlr_xwayland_surface *xwayland_surface = data;
- wlr_xwayland_surface_ping(xwayland_surface);
-
- struct tinywl_view *view = calloc(1, sizeof(struct tinywl_view));
- view->server = server;
- view->type = LAB_XWAYLAND_VIEW;
- view->xwayland_surface = xwayland_surface;
-
- view->map.notify = xwl_surface_map;
- wl_signal_add(&xwayland_surface->events.map, &view->map);
- view->unmap.notify = xwl_surface_unmap;
- wl_signal_add(&xwayland_surface->events.unmap, &view->unmap);
- view->destroy.notify = xwl_surface_destroy;
- wl_signal_add(&xwayland_surface->events.destroy, &view->destroy);
- view->request_configure.notify = xwl_surface_configure;
- wl_signal_add(&xwayland_surface->events.request_configure, &view->request_configure);
-
- wl_list_insert(&server->views, &view->link);
-}
-
-static void xdg_surface_map(struct wl_listener *listener, void *data) {
- /* Called when the surface is mapped, or ready to display on-screen. */
- struct tinywl_view *view = wl_container_of(listener, view, map);
- view->mapped = true;
- view->been_mapped = true;
- view->surface = view->xdg_surface->surface;
- focus_view(view, view->xdg_surface->surface);
-}
-
-static void xdg_surface_unmap(struct wl_listener *listener, void *data) {
- /* Called when the surface is unmapped, and should no longer be shown. */
- struct tinywl_view *view = wl_container_of(listener, view, unmap);
- view->mapped = false;
- view_focus_next_toplevel(view->server);
-}
-
-static void xdg_surface_destroy(struct wl_listener *listener, void *data) {
- /* Called when the surface is destroyed and should never be shown again. */
- struct tinywl_view *view = wl_container_of(listener, view, destroy);
- wl_list_remove(&view->link);
- free(view);
-}
-
-static void begin_interactive(struct tinywl_view *view,
- enum tinywl_cursor_mode mode, uint32_t edges) {
- /* This function sets up an interactive move or resize operation, where the
- * compositor stops propegating pointer events to clients and instead
- * consumes them itself, to move or resize windows. */
- struct tinywl_server *server = view->server;
- struct wlr_surface *focused_surface =
- server->seat->pointer_state.focused_surface;
- if (view->surface != focused_surface) {
- /* Deny move/resize requests from unfocused clients. */
- return;
- }
- server->grabbed_view = view;
- server->cursor_mode = mode;
-
- struct wlr_box geo_box;
- switch (view->type) {
- case LAB_XDG_SHELL_VIEW:
- wlr_xdg_surface_get_geometry(view->xdg_surface, &geo_box);
- break;
- case LAB_XWAYLAND_VIEW:
- geo_box.x = view->xwayland_surface->x;
- geo_box.y = view->xwayland_surface->y;
- geo_box.width = view->xwayland_surface->width;
- geo_box.height = view->xwayland_surface->height;
- break;
- }
-
- if (mode == TINYWL_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 xdg_toplevel_request_move(
- 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 tinywl_view *view = wl_container_of(listener, view, request_move);
- begin_interactive(view, TINYWL_CURSOR_MOVE, 0);
-}
-
-static void xdg_toplevel_request_resize(
- struct wl_listener *listener, void *data) {
- /* This event is raised when a client would like to begin an interactive
- * resize, 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 wlr_xdg_toplevel_resize_event *event = data;
- struct tinywl_view *view = wl_container_of(listener, view, request_resize);
- begin_interactive(view, TINYWL_CURSOR_RESIZE, event->edges);
-}
-
-static void server_new_xdg_surface(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 tinywl_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 tinywl_view for this surface */
- struct tinywl_view *view =
- calloc(1, sizeof(struct tinywl_view));
- view->server = server;
- view->type = LAB_XDG_SHELL_VIEW;
- view->xdg_surface = xdg_surface;
-
- /* Listen to the various events it can emit */
- view->map.notify = xdg_surface_map;
- wl_signal_add(&xdg_surface->events.map, &view->map);
- view->unmap.notify = xdg_surface_unmap;
- wl_signal_add(&xdg_surface->events.unmap, &view->unmap);
- view->destroy.notify = xdg_surface_destroy;
- wl_signal_add(&xdg_surface->events.destroy, &view->destroy);
-
- /* cotd */
- struct wlr_xdg_toplevel *toplevel = xdg_surface->toplevel;
- view->request_move.notify = xdg_toplevel_request_move;
- wl_signal_add(&toplevel->events.request_move, &view->request_move);
- view->request_resize.notify = xdg_toplevel_request_resize;
- wl_signal_add(&toplevel->events.request_resize, &view->request_resize);
-
- /* Add it to the list of views. */
- wl_list_insert(&server->views, &view->link);
-}
-
int main(int argc, char *argv[]) {
wlr_log_init(WLR_ERROR, NULL);
char *startup_cmd = NULL;
*/
wl_list_init(&server.views);
server.xdg_shell = wlr_xdg_shell_create(server.wl_display);
- server.new_xdg_surface.notify = server_new_xdg_surface;
+ server.new_xdg_surface.notify = xdg_surface_new;
wl_signal_add(&server.xdg_shell->events.new_surface,
&server.new_xdg_surface);
/* Init xwayland */
server.xwayland = wlr_xwayland_create(server.wl_display, server.compositor, false);
- server.new_xwayland_surface.notify = server_new_xwayland_surface;
+ server.new_xwayland_surface.notify = xwl_surface_new;
wl_signal_add(&server.xwayland->events.new_surface, &server.new_xwayland_surface);
setenv("DISPLAY", server.xwayland->display_name, true);
wlr_xwayland_set_seat(server.xwayland, server.seat);
--- /dev/null
+#include "labwc.h"
+
+/*
+ * 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 tinywl_view *view;
+ struct timespec *when;
+};
+
+static void render_decorations(struct wlr_output *output, struct tinywl_view *view) {
+ if (!view->surface)
+ return;
+ if (view->type != LAB_XWAYLAND_VIEW)
+ return;
+ if (!is_toplevel(view))
+ return;
+
+ struct wlr_box box = {
+ .x = view->x - XWL_WINDOW_BORDER,
+ .y = view->y - XWL_TITLEBAR_HEIGHT - XWL_WINDOW_BORDER,
+ .width = view->surface->current.width + 2 * XWL_WINDOW_BORDER,
+ .height = view->surface->current.height + XWL_TITLEBAR_HEIGHT +
+ 2 * XWL_WINDOW_BORDER,
+ };
+
+ float matrix[9];
+ wlr_matrix_project_box(matrix, &box, WL_OUTPUT_TRANSFORM_NORMAL, 0,
+ output->transform_matrix);
+
+ float color[] = { 0.2, 0.2, 0.7, 0.9 };
+ wlr_render_quad_with_matrix(view->server->renderer, color, matrix);
+}
+
+static void render_surface(struct wlr_surface *surface,
+ int sx, int sy, void *data) {
+ /* This function is called for every surface that needs to be rendered. */
+ struct render_data *rdata = data;
+ struct tinywl_view *view = rdata->view;
+ struct wlr_output *output = rdata->output;
+
+ /* We first obtain a wlr_texture, which is a GPU resource. wlroots
+ * automatically handles negotiating these with the client. The underlying
+ * resource could be an opaque handle passed from the client, or the client
+ * could have sent a pixel buffer which we copied to the GPU, or a few other
+ * means. You don't have to worry about this, wlroots takes care of it. */
+ struct wlr_texture *texture = wlr_surface_get_texture(surface);
+ if (texture == NULL) {
+ return;
+ }
+
+ /* The view has a position in layout coordinates. If you have two displays,
+ * one next to the other, both 1080p, a view on the rightmost display might
+ * have layout coordinates of 2000,100. We need to translate that to
+ * output-local coordinates, or (2000 - 1920). */
+ double ox = 0, oy = 0;
+ wlr_output_layout_output_coords(
+ view->server->output_layout, output, &ox, &oy);
+ ox += view->x + sx;
+ oy += view->y + sy;
+
+ /* We also have to apply the scale factor for HiDPI outputs. This is only
+ * part of the puzzle, TinyWL does not fully support HiDPI. */
+ struct wlr_box box = {
+ .x = ox * output->scale,
+ .y = oy * output->scale,
+ .width = surface->current.width * output->scale,
+ .height = surface->current.height * output->scale,
+ };
+
+ /*
+ * Those familiar with OpenGL are also familiar with the role of matricies
+ * in graphics programming. We need to prepare a matrix to render the view
+ * with. wlr_matrix_project_box is a helper which takes a box with a desired
+ * x, y coordinates, width and height, and an output geometry, then
+ * prepares an orthographic projection and multiplies the necessary
+ * transforms to produce a model-view-projection matrix.
+ *
+ * Naturally you can do this any way you like, for example to make a 3D
+ * compositor.
+ */
+ float matrix[9];
+ enum wl_output_transform transform =
+ wlr_output_transform_invert(surface->current.transform);
+ wlr_matrix_project_box(matrix, &box, transform, 0,
+ output->transform_matrix);
+
+ /* This takes our matrix, the texture, and an alpha, and performs the actual
+ * rendering on the GPU. */
+ wlr_render_texture_with_matrix(rdata->renderer, texture, matrix, 1);
+
+ /* This lets the client know that we've displayed that frame and it can
+ * prepare another one now if it likes. */
+ wlr_surface_send_frame_done(surface, rdata->when);
+}
+
+void output_frame(struct wl_listener *listener, void *data) {
+ /* This function is called every time an output is ready to display a frame,
+ * generally at the output's refresh rate (e.g. 60Hz). */
+ struct tinywl_output *output =
+ wl_container_of(listener, output, frame);
+ struct wlr_renderer *renderer = output->server->renderer;
+
+ struct timespec now;
+ clock_gettime(CLOCK_MONOTONIC, &now);
+
+ /* wlr_output_attach_render makes the OpenGL context current. */
+ if (!wlr_output_attach_render(output->wlr_output, NULL)) {
+ return;
+ }
+ /* The "effective" resolution can change if you rotate your outputs. */
+ int width, height;
+ wlr_output_effective_resolution(output->wlr_output, &width, &height);
+ /* Begin the renderer (calls glViewport and some other GL sanity checks) */
+ wlr_renderer_begin(renderer, width, height);
+
+ float color[4] = {0.3, 0.3, 0.3, 1.0};
+ wlr_renderer_clear(renderer, color);
+
+ /* Each subsequent window we render is rendered on top of the last. Because
+ * our view list is ordered front-to-back, we iterate over it backwards. */
+ struct tinywl_view *view;
+ wl_list_for_each_reverse(view, &output->server->views, link) {
+ if (!view->mapped) {
+ /* An unmapped view should not be rendered. */
+ continue;
+ }
+ struct render_data rdata = {
+ .output = output->wlr_output,
+ .view = view,
+ .renderer = renderer,
+ .when = &now,
+ };
+
+ render_decorations(output->wlr_output, view);
+
+ /* This calls our render_surface function for each surface among the
+ * xdg_surface's toplevel and popups. */
+ if (view->type == LAB_XDG_SHELL_VIEW) {
+ wlr_xdg_surface_for_each_surface(view->xdg_surface,
+ render_surface, &rdata);
+ } else if (view->type == LAB_XWAYLAND_VIEW) {
+ render_surface(view->xwayland_surface->surface, 0, 0,
+ &rdata);
+ }
+ }
+
+ /* Hardware cursors are rendered by the GPU on a separate plane, and can be
+ * moved around without re-rendering what's beneath them - which is more
+ * efficient. However, not all hardware supports hardware cursors. For this
+ * reason, wlroots provides a software fallback, which we ask it to render
+ * here. wlr_cursor handles configuring hardware vs software cursors for you,
+ * and this function is a no-op when hardware cursors are in use. */
+ wlr_output_render_software_cursors(output->wlr_output, NULL);
+
+ /* Conclude rendering and swap the buffers, showing the final frame
+ * on-screen. */
+ wlr_renderer_end(renderer);
+ wlr_output_commit(output->wlr_output);
+}
+
--- /dev/null
+#include "labwc.h"
+
+static void activate_view(struct tinywl_view *view) {
+ if (view->type == LAB_XDG_SHELL_VIEW) {
+ wlr_xdg_toplevel_set_activated(view->xdg_surface, true);
+ } else if (view->type == LAB_XWAYLAND_VIEW) {
+ wlr_xwayland_surface_activate(view->xwayland_surface, true);
+ } else {
+ fprintf(stderr, "warn: view was of unknown type (%s)\n", __func__);
+ }
+}
+
+/**
+ * Request that this toplevel surface show itself in an activated or
+ * deactivated state.
+ */
+static void set_activated(struct wlr_surface *s, bool activated) {
+ if (wlr_surface_is_xdg_surface(s)) {
+ struct wlr_xdg_surface *previous;
+ previous = wlr_xdg_surface_from_wlr_surface(s);
+ wlr_xdg_toplevel_set_activated(previous, activated);
+ } else {
+ struct wlr_xwayland_surface *previous;
+ previous = wlr_xwayland_surface_from_wlr_surface(s);
+ wlr_xwayland_surface_activate(previous, activated);
+ }
+}
+
+static void move_to_front(struct tinywl_view *view) {
+ wl_list_remove(&view->link);
+ wl_list_insert(&view->server->views, &view->link);
+}
+
+void focus_view(struct tinywl_view *view, struct wlr_surface *surface) {
+ /* Note: this function only deals with keyboard focus. */
+ if (view == NULL) {
+ return;
+ }
+ struct tinywl_server *server = view->server;
+ struct wlr_seat *seat = server->seat;
+ struct wlr_surface *prev_surface;
+
+ prev_surface = seat->keyboard_state.focused_surface;
+ if (prev_surface == surface) {
+ /* Don't re-focus an already focused surface. */
+ return;
+ }
+ if (view->type == LAB_XWAYLAND_VIEW) {
+ /* Don't focus on menus, etc */
+ move_to_front(view);
+ if (!wlr_xwayland_or_surface_wants_focus(view->xwayland_surface)) {
+ return;
+ }
+ }
+ if (prev_surface) {
+ set_activated(seat->keyboard_state.focused_surface, false);
+ }
+
+ struct wlr_keyboard *keyboard = wlr_seat_get_keyboard(seat);
+ move_to_front(view);
+ activate_view(view);
+ /*
+ * Tell the seat to have the keyboard enter this surface. wlroots will
+ * keep track of this and automatically send key events to the
+ * appropriate clients without additional work on your part.
+ */
+ wlr_seat_keyboard_notify_enter(seat, view->surface, keyboard->keycodes,
+ keyboard->num_keycodes, &keyboard->modifiers);
+}
+
+static struct tinywl_view *next_toplevel(struct tinywl_view *current)
+{
+ struct tinywl_view *tmp = current;
+
+ do {
+ tmp = wl_container_of(tmp->link.next, tmp, link);
+ } while (!tmp->been_mapped || !is_toplevel(tmp));
+ return tmp;
+}
+
+void view_focus_next_toplevel(struct tinywl_server *server) {
+ struct tinywl_view *view;
+ view = first_toplevel(server);
+ view = next_toplevel(view);
+ focus_view(view, view->surface);
+}
+
+void begin_interactive(struct tinywl_view *view,
+ enum tinywl_cursor_mode mode, uint32_t edges) {
+ /* This function sets up an interactive move or resize operation, where the
+ * compositor stops propegating pointer events to clients and instead
+ * consumes them itself, to move or resize windows. */
+ struct tinywl_server *server = view->server;
+ struct wlr_surface *focused_surface =
+ server->seat->pointer_state.focused_surface;
+ if (view->surface != focused_surface) {
+ /* Deny move/resize requests from unfocused clients. */
+ return;
+ }
+ server->grabbed_view = view;
+ server->cursor_mode = mode;
+
+ struct wlr_box geo_box;
+ switch (view->type) {
+ case LAB_XDG_SHELL_VIEW:
+ wlr_xdg_surface_get_geometry(view->xdg_surface, &geo_box);
+ break;
+ case LAB_XWAYLAND_VIEW:
+ geo_box.x = view->xwayland_surface->x;
+ geo_box.y = view->xwayland_surface->y;
+ geo_box.width = view->xwayland_surface->width;
+ geo_box.height = view->xwayland_surface->height;
+ break;
+ }
+
+ if (mode == TINYWL_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;
+}
+
+bool is_toplevel(struct tinywl_view *view) {
+ switch (view->type) {
+ case LAB_XWAYLAND_VIEW:
+ return xwl_nr_parents(view) > 0 ? false : true;
+ case LAB_XDG_SHELL_VIEW:
+ return view->xdg_surface->role == WLR_XDG_SURFACE_ROLE_TOPLEVEL;
+ }
+ return false;
+}
+
+struct tinywl_view *first_toplevel(struct tinywl_server *server) {
+ struct tinywl_view *view;
+
+ wl_list_for_each(view, &server->views, link) {
+ if (!view->been_mapped) {
+ continue;
+ }
+ if (is_toplevel(view)) {
+ return view;
+ }
+ }
+ fprintf(stderr, "warn: found no toplevel view (%s)\n", __func__);
+ return NULL;
+}
+
projects / proto / labwc.git / commitdiff