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/**
* @file
* @section AUTHORS
*
* Authors:
* Eamon Walsh <ewalsh@tycho.nsa.gov>
*
* @section LICENSE
*
* This file is in the public domain.
*
* @section DESCRIPTION
*
* This is the "subclass" of display that implements a single view
* consisting of the entirety of a buffer. In other words, this is the
* standard client display for doing a fullscreen framebuffer from a guest.
* With the exception of the combined desktop and the server screen, all
* of the display objects will be of this type.
*/
#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "sys-queue.h"
#include "xen_linpicker.h"
#include "client.h"
#include "view.h"
#include "display.h"
#include "input.h"
static int
bclient_key(struct display *d, bool down, int keycode)
{
if (d->client->input)
xenfb_send_key(d->client->input, down, keycode);
return 0;
}
static int
bclient_position(struct display *d, int x, int y)
{
struct view *v;
struct client *c;
TAILQ_FOREACH(v, &d->views, display_next)
if (x >= v->spos.x && x < (v->spos.x + v->spos.w) &&
y >= v->spos.y && y < (v->spos.y + v->spos.h))
break;
/* What client is the mouse over? */
c = v ? v->buffer->client : NULL;
/* Mouselabel update */
if (c != d->mouse_client)
{
d->mouse_client = c;
display_update_mouselabel(d, c);
}
return 0;
}
static int
bclient_mouse(struct display *d, struct mouse_event *m)
{
struct buffer *b = LIST_FIRST(&d->buffers);
/* Update position */
bclient_position(d, m->x, m->y);
/* Remove the buffer offset */
/* Clamp the position to the buffer bounds */
/* Scale the position to the dimensions the frontend expects */
if (b->xoff > 0 || b->yoff > 0) {
m->x = scale_value(m->x - b->xoff, b->desc.width, display_get_width());
m->y = scale_value(m->y - b->yoff, b->desc.height, display_get_height());
}
if (d->client->input)
xen_linpicker_input_send(d->client->input, m);
return 0;
}
struct display *
bclient_new(struct buffer *b)
{
struct display *d = calloc(1, sizeof(struct display));
if (!d)
return NULL;
/* Set up input methods */
d->send_key = bclient_key;
d->send_mouse = bclient_mouse;
d->update_position = bclient_position;
d->type = DISPLAY_BUFFER;
d->client = b->client;
LIST_INIT(&d->buffers);
LIST_INSERT_HEAD(&d->buffers, b, display_next);
TAILQ_INIT(&d->views);
d->bg_view = b->bg_view;
return d;
}
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