weston/clients/fullscreen.c
Marius Vlad 7e0f20311f clients/fullscreen: Refuse to resize the surface size when fullscreen'ed
This would be causing a protocol error in which the buffer size needs to
match the one provided in the configure event.

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
2019-11-25 20:40:24 +00:00

582 lines
15 KiB
C

/*
* Copyright © 2008 Kristian Høgsberg
* Copyright © 2012 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include "config.h"
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <math.h>
#include <errno.h>
#include <cairo.h>
#include <linux/input.h>
#include <wayland-client.h>
#include "window.h"
#include "fullscreen-shell-unstable-v1-client-protocol.h"
#include <libweston/zalloc.h>
struct fs_output {
struct wl_list link;
struct output *output;
};
struct fullscreen {
struct display *display;
struct window *window;
struct widget *widget;
struct zwp_fullscreen_shell_v1 *fshell;
enum zwp_fullscreen_shell_v1_present_method present_method;
int width, height;
int fullscreen;
float pointer_x, pointer_y;
int draw_cursor;
struct wl_list output_list;
struct fs_output *current_output;
};
static void
fullscreen_handler(struct window *window, void *data)
{
struct fullscreen *fullscreen = data;
fullscreen->fullscreen ^= 1;
window_set_fullscreen(window, fullscreen->fullscreen);
}
static void
draw_string(cairo_t *cr,
const char *fmt, ...)
{
char buffer[4096];
char *p, *end;
va_list argp;
cairo_text_extents_t text_extents;
cairo_font_extents_t font_extents;
cairo_save(cr);
cairo_select_font_face(cr, "sans",
CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_NORMAL);
cairo_set_font_size(cr, 14);
cairo_font_extents (cr, &font_extents);
va_start(argp, fmt);
vsnprintf(buffer, sizeof(buffer), fmt, argp);
p = buffer;
while (*p) {
end = strchr(p, '\n');
if (end)
*end = 0;
cairo_show_text(cr, p);
cairo_text_extents (cr, p, &text_extents);
cairo_rel_move_to (cr, -text_extents.x_advance, font_extents.height);
if (end)
p = end + 1;
else
break;
}
va_end(argp);
cairo_restore(cr);
}
static void
redraw_handler(struct widget *widget, void *data)
{
struct fullscreen *fullscreen = data;
struct rectangle allocation;
cairo_surface_t *surface;
cairo_t *cr;
int i;
double x, y, border;
const char *method_name[] = { "default", "center", "zoom", "zoom_crop", "stretch"};
surface = window_get_surface(fullscreen->window);
if (surface == NULL ||
cairo_surface_status(surface) != CAIRO_STATUS_SUCCESS) {
fprintf(stderr, "failed to create cairo egl surface\n");
return;
}
widget_get_allocation(fullscreen->widget, &allocation);
cr = widget_cairo_create(widget);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_paint (cr);
cairo_set_source_rgb(cr, 0, 0, 1);
cairo_set_line_width (cr, 10);
cairo_rectangle(cr, 5, 5, allocation.width - 10, allocation.height - 10);
cairo_stroke (cr);
cairo_move_to(cr,
allocation.x + 15,
allocation.y + 25);
cairo_set_source_rgb(cr, 1, 1, 1);
if (fullscreen->fshell) {
draw_string(cr,
"Surface size: %d, %d\n"
"Scale: %d, transform: %d\n"
"Pointer: %f,%f\n"
"Output: %s, present method: %s\n"
"Keys: (s)cale, (t)ransform, si(z)e, (m)ethod,\n"
" (o)utput, modes(w)itch, (q)uit\n",
fullscreen->width, fullscreen->height,
window_get_buffer_scale (fullscreen->window),
window_get_buffer_transform (fullscreen->window),
fullscreen->pointer_x, fullscreen->pointer_y,
method_name[fullscreen->present_method],
fullscreen->current_output ? output_get_model(fullscreen->current_output->output): "null");
} else {
draw_string(cr,
"Surface size: %d, %d\n"
"Scale: %d, transform: %d\n"
"Pointer: %f,%f\n"
"Fullscreen: %d\n"
"Keys: (s)cale, (t)ransform, si(z)e, (f)ullscreen, (q)uit\n",
fullscreen->width, fullscreen->height,
window_get_buffer_scale (fullscreen->window),
window_get_buffer_transform (fullscreen->window),
fullscreen->pointer_x, fullscreen->pointer_y,
fullscreen->fullscreen);
}
y = 100;
i = 0;
while (y + 60 < fullscreen->height) {
border = (i++ % 2 == 0) ? 1 : 0.5;
x = 50;
cairo_set_line_width (cr, border);
while (x + 70 < fullscreen->width) {
if (window_has_focus(fullscreen->window) &&
fullscreen->pointer_x >= x && fullscreen->pointer_x < x + 50 &&
fullscreen->pointer_y >= y && fullscreen->pointer_y < y + 40) {
cairo_set_source_rgb(cr, 1, 0, 0);
cairo_rectangle(cr,
x, y,
50, 40);
cairo_fill(cr);
}
cairo_set_source_rgb(cr, 0, 1, 0);
cairo_rectangle(cr,
x + border/2.0, y + border/2.0,
50, 40);
cairo_stroke(cr);
x += 60;
}
y += 50;
}
if (window_has_focus(fullscreen->window) && fullscreen->draw_cursor) {
cairo_set_source_rgb(cr, 1, 1, 1);
cairo_set_line_width (cr, 8);
cairo_move_to(cr,
fullscreen->pointer_x - 12,
fullscreen->pointer_y - 12);
cairo_line_to(cr,
fullscreen->pointer_x + 12,
fullscreen->pointer_y + 12);
cairo_stroke(cr);
cairo_move_to(cr,
fullscreen->pointer_x + 12,
fullscreen->pointer_y - 12);
cairo_line_to(cr,
fullscreen->pointer_x - 12,
fullscreen->pointer_y + 12);
cairo_stroke(cr);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_set_line_width (cr, 4);
cairo_move_to(cr,
fullscreen->pointer_x - 10,
fullscreen->pointer_y - 10);
cairo_line_to(cr,
fullscreen->pointer_x + 10,
fullscreen->pointer_y + 10);
cairo_stroke(cr);
cairo_move_to(cr,
fullscreen->pointer_x + 10,
fullscreen->pointer_y - 10);
cairo_line_to(cr,
fullscreen->pointer_x - 10,
fullscreen->pointer_y + 10);
cairo_stroke(cr);
}
cairo_destroy(cr);
}
static void
key_handler(struct window *window, struct input *input, uint32_t time,
uint32_t key, uint32_t sym, enum wl_keyboard_key_state state,
void *data)
{
struct fullscreen *fullscreen = data;
int transform, scale;
static int current_size = 0;
struct fs_output *fsout;
struct wl_output *wl_output;
int widths[] = { 640, 320, 800, 400 };
int heights[] = { 480, 240, 600, 300 };
if (state == WL_KEYBOARD_KEY_STATE_RELEASED)
return;
switch (sym) {
case XKB_KEY_t:
transform = window_get_buffer_transform (window);
transform = (transform + 1) % 8;
window_set_buffer_transform(window, transform);
window_schedule_redraw(window);
break;
case XKB_KEY_s:
scale = window_get_buffer_scale (window);
if (scale == 1)
scale = 2;
else
scale = 1;
window_set_buffer_scale(window, scale);
window_schedule_redraw(window);
break;
case XKB_KEY_z:
if (fullscreen->fullscreen)
break;
current_size = (current_size + 1) % 4;
fullscreen->width = widths[current_size];
fullscreen->height = heights[current_size];
window_schedule_resize(fullscreen->window,
fullscreen->width, fullscreen->height);
break;
case XKB_KEY_m:
if (!fullscreen->fshell)
break;
wl_output = NULL;
if (fullscreen->current_output)
wl_output = output_get_wl_output(fullscreen->current_output->output);
fullscreen->present_method = (fullscreen->present_method + 1) % 5;
zwp_fullscreen_shell_v1_present_surface(fullscreen->fshell,
window_get_wl_surface(fullscreen->window),
fullscreen->present_method,
wl_output);
window_schedule_redraw(window);
break;
case XKB_KEY_o:
if (!fullscreen->fshell)
break;
fsout = fullscreen->current_output;
wl_output = fsout ? output_get_wl_output(fsout->output) : NULL;
/* Clear the current presentation */
zwp_fullscreen_shell_v1_present_surface(fullscreen->fshell, NULL,
0, wl_output);
if (fullscreen->current_output) {
if (fullscreen->current_output->link.next == &fullscreen->output_list)
fsout = NULL;
else
fsout = wl_container_of(fullscreen->current_output->link.next,
fsout, link);
} else {
fsout = wl_container_of(fullscreen->output_list.next,
fsout, link);
}
fullscreen->current_output = fsout;
wl_output = fsout ? output_get_wl_output(fsout->output) : NULL;
zwp_fullscreen_shell_v1_present_surface(fullscreen->fshell,
window_get_wl_surface(fullscreen->window),
fullscreen->present_method,
wl_output);
window_schedule_redraw(window);
break;
case XKB_KEY_w:
if (!fullscreen->fshell || !fullscreen->current_output)
break;
wl_output = NULL;
if (fullscreen->current_output)
wl_output = output_get_wl_output(fullscreen->current_output->output);
zwp_fullscreen_shell_mode_feedback_v1_destroy(
zwp_fullscreen_shell_v1_present_surface_for_mode(fullscreen->fshell,
window_get_wl_surface(fullscreen->window),
wl_output, 0));
window_schedule_redraw(window);
break;
case XKB_KEY_f:
if (fullscreen->fshell)
break;
fullscreen->fullscreen ^= 1;
window_set_fullscreen(window, fullscreen->fullscreen);
break;
case XKB_KEY_q:
exit (0);
break;
}
}
static int
motion_handler(struct widget *widget,
struct input *input,
uint32_t time,
float x,
float y, void *data)
{
struct fullscreen *fullscreen = data;
fullscreen->pointer_x = x;
fullscreen->pointer_y = y;
widget_schedule_redraw(widget);
return fullscreen->draw_cursor ? CURSOR_BLANK : CURSOR_LEFT_PTR;
}
static int
enter_handler(struct widget *widget,
struct input *input,
float x, float y, void *data)
{
struct fullscreen *fullscreen = data;
fullscreen->pointer_x = x;
fullscreen->pointer_y = y;
widget_schedule_redraw(widget);
return fullscreen->draw_cursor ? CURSOR_BLANK : CURSOR_LEFT_PTR;
}
static void
button_handler(struct widget *widget,
struct input *input, uint32_t time,
uint32_t button, enum wl_pointer_button_state state, void *data)
{
struct fullscreen *fullscreen = data;
switch (button) {
case BTN_LEFT:
if (state == WL_POINTER_BUTTON_STATE_PRESSED)
window_move(fullscreen->window, input,
display_get_serial(fullscreen->display));
break;
case BTN_RIGHT:
if (state == WL_POINTER_BUTTON_STATE_PRESSED)
window_show_frame_menu(fullscreen->window, input, time);
break;
}
}
static void
touch_handler(struct widget *widget, struct input *input,
uint32_t serial, uint32_t time, int32_t id,
float x, float y, void *data)
{
struct fullscreen *fullscreen = data;
window_move(fullscreen->window, input, display_get_serial(fullscreen->display));
}
static void
fshell_capability_handler(void *data, struct zwp_fullscreen_shell_v1 *fshell,
uint32_t capability)
{
struct fullscreen *fullscreen = data;
switch (capability) {
case ZWP_FULLSCREEN_SHELL_V1_CAPABILITY_CURSOR_PLANE:
fullscreen->draw_cursor = 0;
break;
default:
break;
}
}
struct zwp_fullscreen_shell_v1_listener fullscreen_shell_listener = {
fshell_capability_handler
};
static void
usage(int error_code)
{
fprintf(stderr, "Usage: fullscreen [OPTIONS]\n\n"
" -w <width>\tSet window width to <width>\n"
" -h <height>\tSet window height to <height>\n"
" --help\tShow this help text\n\n");
exit(error_code);
}
static void
output_handler(struct output *output, void *data)
{
struct fullscreen *fullscreen = data;
struct fs_output *fsout;
/* If we've already seen this one, don't add it to the list */
wl_list_for_each(fsout, &fullscreen->output_list, link)
if (fsout->output == output)
return;
fsout = zalloc(sizeof *fsout);
if (fsout == NULL) {
fprintf(stderr, "out of memory in output_handler\n");
return;
}
fsout->output = output;
wl_list_insert(&fullscreen->output_list, &fsout->link);
}
static void
global_handler(struct display *display, uint32_t id, const char *interface,
uint32_t version, void *data)
{
struct fullscreen *fullscreen = data;
if (strcmp(interface, "zwp_fullscreen_shell_v1") == 0) {
fullscreen->fshell = display_bind(display, id,
&zwp_fullscreen_shell_v1_interface,
1);
zwp_fullscreen_shell_v1_add_listener(fullscreen->fshell,
&fullscreen_shell_listener,
fullscreen);
}
}
int main(int argc, char *argv[])
{
struct fullscreen fullscreen;
struct display *d;
int i;
fullscreen.width = 640;
fullscreen.height = 480;
fullscreen.fullscreen = 0;
fullscreen.present_method = ZWP_FULLSCREEN_SHELL_V1_PRESENT_METHOD_DEFAULT;
wl_list_init(&fullscreen.output_list);
fullscreen.current_output = NULL;
for (i = 1; i < argc; i++) {
if (strcmp(argv[i], "-w") == 0) {
if (++i >= argc)
usage(EXIT_FAILURE);
fullscreen.width = atol(argv[i]);
} else if (strcmp(argv[i], "-h") == 0) {
if (++i >= argc)
usage(EXIT_FAILURE);
fullscreen.height = atol(argv[i]);
} else if (strcmp(argv[i], "--help") == 0)
usage(EXIT_SUCCESS);
else
usage(EXIT_FAILURE);
}
d = display_create(&argc, argv);
if (d == NULL) {
fprintf(stderr, "failed to create display: %s\n",
strerror(errno));
return -1;
}
fullscreen.display = d;
fullscreen.fshell = NULL;
display_set_user_data(fullscreen.display, &fullscreen);
display_set_global_handler(fullscreen.display, global_handler);
display_set_output_configure_handler(fullscreen.display, output_handler);
if (fullscreen.fshell) {
fullscreen.window = window_create_custom(d);
zwp_fullscreen_shell_v1_present_surface(fullscreen.fshell,
window_get_wl_surface(fullscreen.window),
fullscreen.present_method,
NULL);
/* If we get the CURSOR_PLANE capability, we'll change this */
fullscreen.draw_cursor = 1;
} else {
fullscreen.window = window_create(d);
fullscreen.draw_cursor = 0;
}
fullscreen.widget =
window_add_widget(fullscreen.window, &fullscreen);
window_set_title(fullscreen.window, "Fullscreen");
widget_set_transparent(fullscreen.widget, 0);
widget_set_default_cursor(fullscreen.widget, CURSOR_LEFT_PTR);
widget_set_redraw_handler(fullscreen.widget, redraw_handler);
widget_set_button_handler(fullscreen.widget, button_handler);
widget_set_motion_handler(fullscreen.widget, motion_handler);
widget_set_enter_handler(fullscreen.widget, enter_handler);
widget_set_touch_down_handler(fullscreen.widget, touch_handler);
window_set_key_handler(fullscreen.window, key_handler);
window_set_fullscreen_handler(fullscreen.window, fullscreen_handler);
window_set_user_data(fullscreen.window, &fullscreen);
/* Hack to set minimum allocation so we can shrink later */
window_schedule_resize(fullscreen.window,
1, 1);
window_schedule_resize(fullscreen.window,
fullscreen.width, fullscreen.height);
display_run(d);
widget_destroy(fullscreen.widget);
window_destroy(fullscreen.window);
display_destroy(d);
return 0;
}