mirrors/labwc
1
0
Fork 0
mirror of https://github.com/labwc/labwc.git synced 2025-11-01 22:58:47 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

Move more functions from main.c to other files

Browse source
This commit is contained in:
Johan Malm 2019-12-27 20:26:26 +00:00
parent 52f81e4a39
commit 3ed8e273a9
4 changed files with 232 additions and 221 deletions
Download patch file Download diff file Expand all files Collapse all files

174
server.c
View file

@ -1,5 +1,179 @@
#include "labwc.h"
static void process_cursor_move(struct tinywl_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;
}
static void process_cursor_resize(struct tinywl_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 tinywl_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);
}
static void process_cursor_motion(struct tinywl_server *server, uint32_t time)
{
/* If the mode is non-passthrough, delegate to those functions. */
if (server->cursor_mode == TINYWL_CURSOR_MOVE) {
process_cursor_move(server, time);
return;
} else if (server->cursor_mode == TINYWL_CURSOR_RESIZE) {
process_cursor_resize(server, time);
return;
}
/* Otherwise, find the view under the pointer and send the event along. */
double sx, sy;
struct wlr_seat *seat = server->seat;
struct wlr_surface *surface = NULL;
struct tinywl_view *view = desktop_view_at(server,
server->cursor->x, server->cursor->y, &surface, &sx, &sy);
if (!view) {
/* If there's no view under the cursor, set the cursor image to a
* default. This is what makes the cursor image appear when you move it
* around the screen, not over any views. */
wlr_xcursor_manager_set_cursor_image(
server->cursor_mgr, "left_ptr", server->cursor);
}
if (surface) {
bool focus_changed = seat->pointer_state.focused_surface != surface;
/*
* "Enter" the surface if necessary. This lets the client know that the
* cursor has entered one of its surfaces.
*
* Note that this gives the surface "pointer focus", which is distinct
* from keyboard focus. You get pointer focus by moving the pointer over
* a window.
*/
wlr_seat_pointer_notify_enter(seat, surface, sx, sy);
if (!focus_changed) {
/* The enter event contains coordinates, so we only need to notify
* on motion if the focus did not change. */
wlr_seat_pointer_notify_motion(seat, time, sx, sy);
}
} else {
/* Clear pointer focus so future button events and such are not sent to
* the last client to have the cursor over it. */
wlr_seat_pointer_clear_focus(seat);
}
}
void server_cursor_motion(struct wl_listener *listener, void *data)
{
/* This event is forwarded by the cursor when a pointer emits a _relative_
* pointer motion event (i.e. a delta) */
struct tinywl_server *server =
wl_container_of(listener, server, cursor_motion);
struct wlr_event_pointer_motion *event = data;
/* The cursor doesn't move unless we tell it to. The cursor automatically
* handles constraining the motion to the output layout, as well as any
* special configuration applied for the specific input device which
* generated the event. You can pass NULL for the device if you want to move
* the cursor around without any input. */
wlr_cursor_move(server->cursor, event->device,
event->delta_x, event->delta_y);
process_cursor_motion(server, event->time_msec);
}
void server_cursor_motion_absolute(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 tinywl_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);
process_cursor_motion(server, event->time_msec);
}
void server_cursor_button(struct wl_listener *listener, void *data)
{
/* This event is forwarded by the cursor when a pointer emits a button
* event. */
struct tinywl_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_surface *surface;
struct tinywl_view *view = desktop_view_at(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 = TINYWL_CURSOR_PASSTHROUGH;
} else {
/* Focus that client if the button was _pressed_ */
focus_view(view, surface);
}
}
void server_cursor_axis(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 tinywl_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 server_cursor_frame(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 tinywl_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 server_new_output(struct wl_listener *listener, void *data)
{
/* This event is rasied by the backend when a new output (aka a display or