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toaruos/apps/panel.c

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/* vim: tabstop=4 shiftwidth=4 noexpandtab
* This file is part of ToaruOS and is released under the terms
* of the NCSA / University of Illinois License - see LICENSE.md
* Copyright (C) 2013-2018 K. Lange
*
*
* Yutani Panel
*
* Provides a window list and clock as well some simple session management.
*
* Future goals:
* - Applications menu
* - More session management
* - Pluggable indicators
*
*/
#include <stdlib.h>
#include <assert.h>
#include <limits.h>
#include <math.h>
#include <time.h>
#include <fcntl.h>
#include <unistd.h>
#include <signal.h>
#include <syscall.h>
#include <sys/time.h>
#include <sys/utsname.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <toaru/yutani.h>
#include <toaru/graphics.h>
#include <toaru/hashmap.h>
#include <toaru/spinlock.h>
#include <toaru/sdf.h>
#include <toaru/icon_cache.h>
#include <toaru/menu.h>
#include <kernel/mod/sound.h>
#define PANEL_HEIGHT 28
#define FONT_SIZE 14
#define TIME_LEFT 108
#define DATE_WIDTH 70
#define GRADIENT_HEIGHT 24
#define APP_OFFSET 140
#define TEXT_Y_OFFSET 2
#define ICON_PADDING 2
#define MAX_TEXT_WIDTH 180
#define MIN_TEXT_WIDTH 50
#define HILIGHT_COLOR rgb(142,216,255)
#define FOCUS_COLOR rgb(255,255,255)
#define TEXT_COLOR rgb(230,230,230)
#define ICON_COLOR rgb(230,230,230)
#define GRADIENT_AT(y) premultiply(rgba(72, 167, 255, ((24-(y))*160)/24))
#define ALTTAB_WIDTH 250
#define ALTTAB_HEIGHT 100
#define ALTTAB_BACKGROUND premultiply(rgba(0,0,0,150))
#define ALTTAB_OFFSET 10
#define ALTF2_WIDTH 400
#define ALTF2_HEIGHT 200
#define MAX_WINDOW_COUNT 100
#define TOTAL_CELL_WIDTH (title_width)
#define LEFT_BOUND (width - TIME_LEFT - DATE_WIDTH - ICON_PADDING - widgets_width)
#define WIDGET_WIDTH 24
#define WIDGET_RIGHT (width - TIME_LEFT - DATE_WIDTH)
#define WIDGET_POSITION(i) (WIDGET_RIGHT - WIDGET_WIDTH * (i+1))
static yutani_t * yctx;
static gfx_context_t * ctx = NULL;
static yutani_window_t * panel = NULL;
static gfx_context_t * actx = NULL;
static yutani_window_t * alttab = NULL;
static gfx_context_t * a2ctx = NULL;
static yutani_window_t * alt_f2 = NULL;
static list_t * window_list = NULL;
static volatile int lock = 0;
static volatile int drawlock = 0;
static size_t bg_size;
static char * bg_blob;
static int width;
static int height;
static int widgets_width = 0;
static int widgets_volume_enabled = 0;
static int widgets_network_enabled = 0;
static int network_status = 0;
static sprite_t * sprite_panel;
static sprite_t * sprite_logout;
static sprite_t * sprite_volume_mute;
static sprite_t * sprite_volume_low;
static sprite_t * sprite_volume_med;
static sprite_t * sprite_volume_high;
static sprite_t * sprite_net_active;
static sprite_t * sprite_net_disabled;
struct MenuList * appmenu;
struct MenuList * window_menu;
struct MenuList * logout_menu;
struct MenuList * netstat;
static yutani_wid_t _window_menu_wid = 0;
static int center_x(int x) {
return (width - x) / 2;
}
static int center_y(int y) {
return (height - y) / 2;
}
static int center_x_a(int x) {
return (ALTTAB_WIDTH - x) / 2;
}
static int center_x_a2(int x) {
return (ALTF2_WIDTH - x) / 2;
}
static void redraw(void);
static volatile int _continue = 1;
struct window_ad {
yutani_wid_t wid;
uint32_t flags;
char * name;
char * icon;
char * strings;
int left;
};
typedef struct {
char * icon;
char * appname;
char * title;
} application_t;
/* Windows, indexed by list order */
static struct window_ad * ads_by_l[MAX_WINDOW_COUNT+1] = {NULL};
/* Windows, indexed by z-order */
static struct window_ad * ads_by_z[MAX_WINDOW_COUNT+1] = {NULL};
static int focused_app = -1;
static int active_window = -1;
static int was_tabbing = 0;
static int new_focused = -1;
static int title_width = 0;
static void toggle_hide_panel(void) {
static int panel_hidden = 0;
if (panel_hidden) {
/* Unhide the panel */
for (int i = PANEL_HEIGHT-1; i >= 0; i--) {
yutani_window_move(yctx, panel, 0, -i);
usleep(10000);
}
panel_hidden = 0;
} else {
/* Hide the panel */
for (int i = 1; i <= PANEL_HEIGHT-1; i++) {
yutani_window_move(yctx, panel, 0, -i);
usleep(10000);
}
panel_hidden = 1;
}
}
/* Handle SIGINT by telling other threads (clock) to shut down */
static void sig_int(int sig) {
printf("Received shutdown signal in panel!\n");
_continue = 0;
}
static void launch_application(char * app) {
if (!fork()) {
printf("Starting %s\n", app);
char * args[] = {"/bin/sh", "-c", app, NULL};
execvp(args[0], args);
exit(1);
}
}
/* Update the hover-focus window */
static void set_focused(int i) {
if (focused_app != i) {
focused_app = i;
redraw();
}
}
static void _window_menu_start_move(struct MenuEntry * self) {
if (!_window_menu_wid)
return;
yutani_focus_window(yctx, _window_menu_wid);
yutani_window_drag_start_wid(yctx, _window_menu_wid);
}
static void _window_menu_start_maximize(struct MenuEntry * self) {
if (!_window_menu_wid)
return;
yutani_special_request_wid(yctx, _window_menu_wid, YUTANI_SPECIAL_REQUEST_MAXIMIZE);
yutani_focus_window(yctx, _window_menu_wid);
}
static void _window_menu_close(struct MenuEntry * self) {
if (!_window_menu_wid)
return;
yutani_focus_window(yctx, _window_menu_wid);
yutani_special_request_wid(yctx, _window_menu_wid, YUTANI_SPECIAL_REQUEST_PLEASE_CLOSE);
}
static void window_show_menu(yutani_wid_t wid, int y, int x) {
if (window_menu->window) return;
_window_menu_wid = wid;
menu_show(window_menu, yctx);
yutani_window_move(yctx, window_menu->window, y, x);
}
#define VOLUME_DEVICE_ID 0
#define VOLUME_KNOB_ID 0
static uint32_t volume_level = 0;
static int mixer = -1;
static void update_volume_level(void) {
if (mixer == -1) {
mixer = open("/dev/mixer", O_RDONLY);
}
snd_knob_value_t value = {0};
value.device = VOLUME_DEVICE_ID; /* TODO configure this somewhere */
value.id = VOLUME_KNOB_ID; /* TODO this too */
ioctl(mixer, SND_MIXER_READ_KNOB, &value);
volume_level = value.val;
}
static void volume_raise(void) {
if (volume_level > 0xE0000000) volume_level = 0xF0000000;
else volume_level += 0x10000000;
snd_knob_value_t value = {0};
value.device = VOLUME_DEVICE_ID; /* TODO configure this somewhere */
value.id = VOLUME_KNOB_ID; /* TODO this too */
value.val = volume_level;
ioctl(mixer, SND_MIXER_WRITE_KNOB, &value);
redraw();
}
static void volume_lower(void) {
if (volume_level < 0x20000000) volume_level = 0x0;
else volume_level -= 0x10000000;
snd_knob_value_t value = {0};
value.device = VOLUME_DEVICE_ID; /* TODO configure this somewhere */
value.id = VOLUME_KNOB_ID; /* TODO this too */
value.val = volume_level;
ioctl(mixer, SND_MIXER_WRITE_KNOB, &value);
redraw();
}
static int netstat_left = 0;
static struct MenuEntry_Normal * netstat_ip_entry;
static char * netstat_ip = NULL;
static struct MenuEntry_Normal * netstat_device_entry;
static char * netstat_device = NULL;
static void update_network_status(void) {
FILE * net = fopen("/proc/netif","r");
char line[256];
do {
memset(line, 0, 256);
fgets(line, 256, net);
if (!*line) break;
if (strstr(line,"no network") != NULL) {
network_status = 0;
break;
} else if (strstr(line,"ip:") != NULL) {
network_status = 1;
if (netstat_ip) {
free(netstat_ip);
}
char tmp[512];
sprintf(tmp, "IP: %s", &line[4]);
char * lf = strstr(tmp,"\n");
if (lf) *lf = '\0';
netstat_ip = strdup(tmp);
} else if (strstr(line,"device:") != NULL) {
network_status = 1;
if (netstat_device) {
free(netstat_device);
}
char tmp[512];
sprintf(tmp, "Device: %s", &line[8]);
char * lf = strstr(tmp,"\n");
if (lf) *lf = '\0';
netstat_device = strdup(tmp);
}
} while (1);
fclose(net);
}
static void show_logout_menu(void) {
if (!logout_menu->window) {
menu_show(logout_menu, yctx);
if (logout_menu->window) {
yutani_window_move(yctx, logout_menu->window, width - logout_menu->window->width, PANEL_HEIGHT);
}
}
}
static void show_app_menu(void) {
if (!appmenu->window) {
menu_show(appmenu, yctx);
if (appmenu->window) {
yutani_window_move(yctx, appmenu->window, 0, PANEL_HEIGHT);
}
}
}
static void show_network_status(void) {
if (!netstat) {
netstat = menu_create();
menu_insert(netstat, menu_create_normal(NULL, NULL, "Network Status", NULL));
menu_insert(netstat, menu_create_separator());
netstat_ip_entry = (struct MenuEntry_Normal *)menu_create_normal(NULL, NULL, "", NULL);
menu_insert(netstat, netstat_ip_entry);
netstat_device_entry = (struct MenuEntry_Normal *)menu_create_normal(NULL, NULL, "", NULL);
menu_insert(netstat, netstat_device_entry);
}
if (network_status) {
menu_update_title(netstat_ip_entry, netstat_ip);
menu_update_title(netstat_device_entry, netstat_device ? netstat_device : "(?)");
} else {
menu_update_title(netstat_ip_entry, "No network.");
menu_update_title(netstat_device_entry, "");
}
if (!netstat->window) {
menu_show(netstat, yctx);
if (netstat->window) {
if (netstat_left + netstat->window->width > (unsigned int)width) {
yutani_window_move(yctx, netstat->window, width - netstat->window->width, PANEL_HEIGHT);
} else {
yutani_window_move(yctx, netstat->window, netstat_left, PANEL_HEIGHT);
}
}
}
}
/* Callback for mouse events */
static void panel_check_click(struct yutani_msg_window_mouse_event * evt) {
if (evt->wid == panel->wid) {
if (evt->command == YUTANI_MOUSE_EVENT_CLICK) {
/* Up-down click */
if (evt->new_x >= width - 24 ) {
show_logout_menu();
} else if (evt->new_x < APP_OFFSET) {
show_app_menu();
} else if (evt->new_x >= APP_OFFSET && evt->new_x < LEFT_BOUND) {
for (int i = 0; i < MAX_WINDOW_COUNT; ++i) {
if (ads_by_l[i] == NULL) break;
if (evt->new_x >= ads_by_l[i]->left && evt->new_x < ads_by_l[i]->left + TOTAL_CELL_WIDTH) {
yutani_focus_window(yctx, ads_by_l[i]->wid);
break;
}
}
}
int widget = 0;
if (widgets_network_enabled) {
if (evt->new_x > WIDGET_POSITION(widget) && evt->new_x < WIDGET_POSITION(widget-1)) {
netstat_left = WIDGET_POSITION(widget);
show_network_status();
}
widget++;
}
if (widgets_volume_enabled) {
if (evt->new_x > WIDGET_POSITION(widget) && evt->new_x < WIDGET_POSITION(widget-1)) {
/* TODO: Show the volume manager */
}
widget++;
}
} else if (evt->buttons & YUTANI_MOUSE_BUTTON_RIGHT) {
if (evt->new_x >= APP_OFFSET && evt->new_x < LEFT_BOUND) {
for (int i = 0; i < MAX_WINDOW_COUNT; ++i) {
if (ads_by_l[i] == NULL) break;
if (evt->new_x >= ads_by_l[i]->left && evt->new_x < ads_by_l[i]->left + TOTAL_CELL_WIDTH) {
window_show_menu(ads_by_l[i]->wid, ads_by_l[i]->left, PANEL_HEIGHT);
}
}
}
} else if (evt->command == YUTANI_MOUSE_EVENT_MOVE || evt->command == YUTANI_MOUSE_EVENT_ENTER) {
/* Movement, or mouse entered window */
if (evt->new_y < PANEL_HEIGHT) {
for (int i = 0; i < MAX_WINDOW_COUNT; ++i) {
if (ads_by_l[i] == NULL) {
set_focused(-1);
break;
}
if (evt->new_x >= ads_by_l[i]->left && evt->new_x < ads_by_l[i]->left + TOTAL_CELL_WIDTH) {
set_focused(i);
break;
}
}
} else {
set_focused(-1);
}
int scroll_direction = 0;
if (evt->buttons & YUTANI_MOUSE_SCROLL_UP) scroll_direction = -1;
else if (evt->buttons & YUTANI_MOUSE_SCROLL_DOWN) scroll_direction = 1;
if (scroll_direction) {
int widget = 0;
if (widgets_network_enabled) {
if (evt->new_x > WIDGET_POSITION(widget) && evt->new_x < WIDGET_POSITION(widget-1)) {
/* Ignore */
}
widget++;
}
if (widgets_volume_enabled) {
if (evt->new_x > WIDGET_POSITION(widget) && evt->new_x < WIDGET_POSITION(widget-1)) {
if (scroll_direction == 1) {
volume_lower();
} else if (scroll_direction == -1) {
volume_raise();
}
}
widget++;
}
if (evt->new_x >= APP_OFFSET && evt->new_x < LEFT_BOUND) {
if (scroll_direction != 0) {
struct window_ad * last = window_list->tail ? window_list->tail->value : NULL;
int focus_next = 0;
foreach(node, window_list) {
struct window_ad * ad = node->value;
if (focus_next) {
yutani_focus_window(yctx, ad->wid);
return;
}
if (ad->flags & 1) {
if (scroll_direction == -1) {
yutani_focus_window(yctx, last->wid);
return;
}
if (scroll_direction == 1) {
focus_next = 1;
}
}
last = ad;
}
if (focus_next && window_list->head) {
struct window_ad * ad = window_list->head->value;
yutani_focus_window(yctx, ad->wid);
return;
}
}
}
}
} else if (evt->command == YUTANI_MOUSE_EVENT_LEAVE) {
/* Mouse left panel window */
set_focused(-1);
}
}
}
static char altf2_buffer[1024] = {0};
static unsigned int altf2_collected = 0;
#if 0
static list_t * altf2_apps = NULL;
struct altf2_app {
char * name;
sprite_t * icon;
};
static sprite_t * find_icon(char * name) {
struct {
char * name;
char * icon;
} special[] = {
{"about", "star"},
{"help-browser", "help"},
{"terminal", "utilities-terminal"},
{NULL,NULL},
};
int i = 0;
while (special[i].name) {
if (!strcmp(special[i].name, name)) {
return icon_get_48(special[i].icon);
}
i++;
}
return icon_get_48(name);
}
#endif
static void close_altf2(void) {
free(a2ctx->backbuffer);
free(a2ctx);
altf2_buffer[0] = 0;
altf2_collected = 0;
yutani_close(yctx, alt_f2);
alt_f2 = NULL;
}
static void redraw_altf2(void) {
#if 0
if (!altf2_apps) {
/* initialize */
}
#endif
draw_fill(a2ctx, 0);
draw_rounded_rectangle(a2ctx,0,0, ALTF2_WIDTH, ALTF2_HEIGHT, 10, ALTTAB_BACKGROUND);
int t = draw_sdf_string_width(altf2_buffer, 22, SDF_FONT_THIN);
draw_sdf_string(a2ctx, center_x_a2(t), 60, altf2_buffer, 22, rgb(255,255,255), SDF_FONT_THIN);
flip(a2ctx);
yutani_flip(yctx, alt_f2);
}
static void redraw_alttab(void) {
/* Draw the background, right now just a dark semi-transparent box */
draw_fill(actx, 0);
draw_rounded_rectangle(actx,0,0, ALTTAB_WIDTH, ALTTAB_HEIGHT, 10, ALTTAB_BACKGROUND);
if (ads_by_z[new_focused]) {
struct window_ad * ad = ads_by_z[new_focused];
sprite_t * icon = icon_get_48(ad->icon);
/* Draw it, scaled if necessary */
if (icon->width == 48) {
draw_sprite(actx, icon, center_x_a(48), ALTTAB_OFFSET);
} else {
draw_sprite_scaled(actx, icon, center_x_a(48), ALTTAB_OFFSET, 48, 48);
}
int t = draw_sdf_string_width(ad->name, 18, SDF_FONT_THIN);
draw_sdf_string(actx, center_x_a(t), 12+ALTTAB_OFFSET+40, ad->name, 18, rgb(255,255,255), SDF_FONT_THIN);
}
flip(actx);
yutani_flip(yctx, alttab);
}
static void launch_application_menu(struct MenuEntry * self) {
struct MenuEntry_Normal * _self = (void *)self;
if (!strcmp((char *)_self->action,"log-out")) {
yutani_session_end(yctx);
_continue = 0;
} else {
launch_application((char *)_self->action);
}
}
static void handle_key_event(struct yutani_msg_key_event * ke) {
if (alt_f2 && ke->wid == alt_f2->wid) {
if (ke->event.action == KEY_ACTION_DOWN) {
if (ke->event.keycode == KEY_ESCAPE) {
close_altf2();
return;
}
if (ke->event.key == '\b') {
if (altf2_collected) {
altf2_buffer[altf2_collected-1] = '\0';
altf2_collected--;
redraw_altf2();
}
return;
}
if (ke->event.key == '\n') {
/* execute */
launch_application(altf2_buffer);
close_altf2();
return;
}
if (!ke->event.key) {
return;
}
/* Try to add it */
if (altf2_collected < sizeof(altf2_buffer) - 1) {
altf2_buffer[altf2_collected] = ke->event.key;
altf2_collected++;
altf2_buffer[altf2_collected] = 0;
redraw_altf2();
}
}
}
if ((ke->event.modifiers & KEY_MOD_LEFT_CTRL) &&
(ke->event.modifiers & KEY_MOD_LEFT_ALT) &&
(ke->event.keycode == 't') &&
(ke->event.action == KEY_ACTION_DOWN)) {
launch_application("terminal");
return;
}
if ((ke->event.modifiers & KEY_MOD_LEFT_CTRL) &&
(ke->event.keycode == KEY_F11) &&
(ke->event.action == KEY_ACTION_DOWN)) {
fprintf(stderr, "[panel] Toggling visibility.\n");
toggle_hide_panel();
return;
}
if ((ke->event.modifiers & KEY_MOD_LEFT_ALT) &&
(ke->event.keycode == KEY_F1) &&
(ke->event.action == KEY_ACTION_DOWN)) {
/* show menu */
show_app_menu();
}
if ((ke->event.modifiers & KEY_MOD_LEFT_ALT) &&
(ke->event.keycode == KEY_F2) &&
(ke->event.action == KEY_ACTION_DOWN)) {
/* show menu */
if (!alt_f2) {
alt_f2 = yutani_window_create(yctx, ALTF2_WIDTH, ALTF2_HEIGHT);
yutani_window_move(yctx, alt_f2, center_x(ALTF2_WIDTH), center_y(ALTF2_HEIGHT));
a2ctx = init_graphics_yutani_double_buffer(alt_f2);
redraw_altf2();
}
}
if ((was_tabbing) && (ke->event.keycode == 0 || ke->event.keycode == KEY_LEFT_ALT) &&
(ke->event.modifiers == 0) && (ke->event.action == KEY_ACTION_UP)) {
fprintf(stderr, "[panel] Stopping focus new_focused = %d\n", new_focused);
struct window_ad * ad = ads_by_z[new_focused];
if (!ad) return;
yutani_focus_window(yctx, ad->wid);
was_tabbing = 0;
new_focused = -1;
free(actx->backbuffer);
free(actx);
yutani_close(yctx, alttab);
return;
}
if ((ke->event.modifiers & KEY_MOD_LEFT_ALT) &&
(ke->event.keycode == '\t') &&
(ke->event.action == KEY_ACTION_DOWN)) {
int direction = (ke->event.modifiers & KEY_MOD_LEFT_SHIFT) ? 1 : -1;
if (window_list->length < 1) return;
if (was_tabbing) {
new_focused = new_focused + direction;
} else {
new_focused = active_window + direction;
/* Create tab window */
alttab = yutani_window_create(yctx, ALTTAB_WIDTH, ALTTAB_HEIGHT);
/* Center window */
yutani_window_move(yctx, alttab, center_x(ALTTAB_WIDTH), center_y(ALTTAB_HEIGHT));
/* Initialize graphics context against the window */
actx = init_graphics_yutani_double_buffer(alttab);
}
if (new_focused < 0) {
new_focused = 0;
for (int i = 0; i < MAX_WINDOW_COUNT; i++) {
if (ads_by_z[i+1] == NULL) {
new_focused = i;
break;
}
}
} else if (ads_by_z[new_focused] == NULL) {
new_focused = 0;
}
was_tabbing = 1;
redraw_alttab();
}
}
static void redraw(void) {
spin_lock(&drawlock);
struct timeval now;
struct tm * timeinfo;
char buffer[80];
uint32_t txt_color = TEXT_COLOR;
int t = 0;
/* Redraw the background */
memcpy(ctx->backbuffer, bg_blob, bg_size);
/* Get the current time for the clock */
gettimeofday(&now, NULL);
timeinfo = localtime((time_t *)&now.tv_sec);
/* Hours : Minutes : Seconds */
strftime(buffer, 80, "%H:%M:%S", timeinfo);
draw_sdf_string(ctx, width - TIME_LEFT, 3, buffer, 20, txt_color, SDF_FONT_THIN);
/* Day-of-week */
strftime(buffer, 80, "%A", timeinfo);
t = draw_sdf_string_width(buffer, 12, SDF_FONT_THIN);
t = (DATE_WIDTH - t) / 2;
draw_sdf_string(ctx, width - TIME_LEFT - DATE_WIDTH + t, 2, buffer, 12, txt_color, SDF_FONT_THIN);
/* Month Day */
strftime(buffer, 80, "%h %e", timeinfo);
t = draw_sdf_string_width(buffer, 12, SDF_FONT_BOLD);
t = (DATE_WIDTH - t) / 2;
draw_sdf_string(ctx, width - TIME_LEFT - DATE_WIDTH + t, 12, buffer, 12, txt_color, SDF_FONT_BOLD);
/* Applications menu */
draw_sdf_string(ctx, 8, 3, "Applications", 20, appmenu->window ? HILIGHT_COLOR : txt_color, SDF_FONT_THIN);
/* Draw each widget */
/* - Volume */
/* TODO: Get actual volume levels, and cache them somewhere */
int widget = 0;
if (widgets_network_enabled) {
uint32_t color = (netstat && netstat->window) ? HILIGHT_COLOR : ICON_COLOR;
if (network_status == 1) {
draw_sprite_alpha_paint(ctx, sprite_net_active, WIDGET_POSITION(widget), 0, 1.0, color);
} else {
draw_sprite_alpha_paint(ctx, sprite_net_disabled, WIDGET_POSITION(widget), 0, 1.0, color);
}
widget++;
}
if (widgets_volume_enabled) {
if (volume_level < 10) {
draw_sprite_alpha_paint(ctx, sprite_volume_mute, WIDGET_POSITION(widget), 0, 1.0, ICON_COLOR);
} else if (volume_level < 0x547ae147) {
draw_sprite_alpha_paint(ctx, sprite_volume_low, WIDGET_POSITION(widget), 0, 1.0, ICON_COLOR);
} else if (volume_level < 0xa8f5c28e) {
draw_sprite_alpha_paint(ctx, sprite_volume_med, WIDGET_POSITION(widget), 0, 1.0, ICON_COLOR);
} else {
draw_sprite_alpha_paint(ctx, sprite_volume_high, WIDGET_POSITION(widget), 0, 1.0, ICON_COLOR);
}
widget++;
}
/* Now draw the window list */
int i = 0, j = 0;
spin_lock(&lock);
if (window_list) {
foreach(node, window_list) {
struct window_ad * ad = node->value;
char * s = "";
char tmp_title[50];
int w = 0;
if (APP_OFFSET + i + w > LEFT_BOUND) {
break;
}
if (title_width > MIN_TEXT_WIDTH) {
memset(tmp_title, 0x0, 50);
int t_l = strlen(ad->name);
if (t_l > 45) {
t_l = 45;
}
for (int i = 0; i < t_l; ++i) {
tmp_title[i] = ad->name[i];
if (!ad->name[i]) break;
}
while (draw_sdf_string_width(tmp_title, 16, SDF_FONT_THIN) > title_width - ICON_PADDING) {
t_l--;
tmp_title[t_l] = '.';
tmp_title[t_l+1] = '.';
tmp_title[t_l+2] = '.';
tmp_title[t_l+3] = '\0';
}
w += title_width;
s = tmp_title;
}
/* Hilight the focused window */
if (ad->flags & 1) {
/* This is the focused window */
for (int y = 0; y < GRADIENT_HEIGHT; ++y) {
for (int x = APP_OFFSET + i; x < APP_OFFSET + i + w; ++x) {
GFX(ctx, x, y) = alpha_blend_rgba(GFX(ctx, x, y), GRADIENT_AT(y));
}
}
}
/* Get the icon for this window */
sprite_t * icon = icon_get_48(ad->icon);
{
sprite_t * _tmp_s = create_sprite(48, PANEL_HEIGHT-2, ALPHA_EMBEDDED);
gfx_context_t * _tmp = init_graphics_sprite(_tmp_s);
draw_fill(_tmp, rgba(0,0,0,0));
/* Draw it, scaled if necessary */
if (icon->width == 48) {
draw_sprite(_tmp, icon, 0, 0);
} else {
draw_sprite_scaled(_tmp, icon, 0, 0, 48, 48);
}
free(_tmp);
draw_sprite_alpha(ctx, _tmp_s, APP_OFFSET + i + w - 48 - 2, 0, 0.7);
sprite_free(_tmp_s);
}
{
sprite_t * _tmp_s = create_sprite(w, PANEL_HEIGHT, ALPHA_EMBEDDED);
gfx_context_t * _tmp = init_graphics_sprite(_tmp_s);
draw_fill(_tmp, rgba(0,0,0,0));
draw_sdf_string(_tmp, 0, 0, s, 16, rgb(0,0,0), SDF_FONT_THIN);
blur_context_box(_tmp, 4);
free(_tmp);
draw_sprite(ctx, _tmp_s, APP_OFFSET + i + 2, TEXT_Y_OFFSET + 2);
sprite_free(_tmp_s);
}
if (title_width > MIN_TEXT_WIDTH) {
/* Then draw the window title, with appropriate color */
if (j == focused_app) {
/* Current hilighted - title should be a light blue */
draw_sdf_string(ctx, APP_OFFSET + i + 2, TEXT_Y_OFFSET + 2, s, 16, HILIGHT_COLOR, SDF_FONT_THIN);
} else {
if (ad->flags & 1) {
/* Top window should be white */
draw_sdf_string(ctx, APP_OFFSET + i + 2, TEXT_Y_OFFSET + 2, s, 16, FOCUS_COLOR, SDF_FONT_THIN);
} else {
/* Otherwise, off white */
draw_sdf_string(ctx, APP_OFFSET + i + 2, TEXT_Y_OFFSET + 2, s, 16, txt_color, SDF_FONT_THIN);
}
}
}
/* XXX This keeps track of how far left each window list item is
* so we can map clicks up in the mouse callback. */
if (j < MAX_WINDOW_COUNT) {
if (ads_by_l[j]) {
ads_by_l[j]->left = APP_OFFSET + i;
}
}
j++;
i += w;
}
}
spin_unlock(&lock);
/* Draw the logout button; XXX This should probably have some sort of focus hilight */
draw_sprite_alpha_paint(ctx, sprite_logout, width - 23, 1, 1.0, (logout_menu->window ? HILIGHT_COLOR : ICON_COLOR)); /* Logout button */
/* Flip */
flip(ctx);
yutani_flip(yctx, panel);
spin_unlock(&drawlock);
}
static void update_window_list(void) {
yutani_query_windows(yctx);
list_t * new_window_list = list_create();
int i = 0;
while (1) {
/* We wait for a series of WINDOW_ADVERTISE messsages */
yutani_msg_t * m = yutani_wait_for(yctx, YUTANI_MSG_WINDOW_ADVERTISE);
struct yutani_msg_window_advertise * wa = (void*)m->data;
if (wa->size == 0) {
/* A sentinal at the end will have a size of 0 */
free(m);
break;
}
/* Store each window advertisement */
struct window_ad * ad = malloc(sizeof(struct window_ad));
char * s = malloc(wa->size);
memcpy(s, wa->strings, wa->size);
ad->name = &s[wa->offsets[0]];
ad->icon = &s[wa->offsets[1]];
ad->strings = s;
ad->flags = wa->flags;
ad->wid = wa->wid;
ads_by_z[i] = ad;
i++;
ads_by_z[i] = NULL;
node_t * next = NULL;
/* And insert it, ordered by wid, into the window list */
foreach(node, new_window_list) {
struct window_ad * n = node->value;
if (n->wid > ad->wid) {
next = node;
break;
}
}
if (next) {
list_insert_before(new_window_list, next, ad);
} else {
list_insert(new_window_list, ad);
}
free(m);
}
active_window = i-1;
i = 0;
/*
* Update each of the wid entries in our array so we can map
* clicks to window focus events for each window
*/
foreach(node, new_window_list) {
struct window_ad * ad = node->value;
if (i < MAX_WINDOW_COUNT) {
ads_by_l[i] = ad;
ads_by_l[i+1] = NULL;
}
i++;
}
/* Then free up the old list and replace it with the new list */
spin_lock(&lock);
if (new_window_list->length) {
int tmp = LEFT_BOUND;
tmp -= APP_OFFSET;
if (tmp < 0) {
title_width = 0;
} else {
title_width = tmp / new_window_list->length;
if (title_width > MAX_TEXT_WIDTH) {
title_width = MAX_TEXT_WIDTH;
}
if (title_width < MIN_TEXT_WIDTH) {
title_width = 0;
}
}
} else {
title_width = 0;
}
if (window_list) {
foreach(node, window_list) {
struct window_ad * ad = (void*)node->value;
free(ad->strings);
free(ad);
}
list_free(window_list);
free(window_list);
}
window_list = new_window_list;
spin_unlock(&lock);
/* And redraw the panel */
redraw();
}
static void resize_finish(int xwidth, int xheight) {
yutani_window_resize_accept(yctx, panel, xwidth, xheight);
reinit_graphics_yutani(ctx, panel);
yutani_window_resize_done(yctx, panel);
width = xwidth;
/* Draw the background */
draw_fill(ctx, rgba(0,0,0,0));
for (int i = 0; i < xwidth; i += sprite_panel->width) {
draw_sprite(ctx, sprite_panel, i, 0);
}
/* Copy the prerendered background so we can redraw it quickly */
bg_size = panel->width * panel->height * sizeof(uint32_t);
bg_blob = realloc(bg_blob, bg_size);
memcpy(bg_blob, ctx->backbuffer, bg_size);
update_window_list();
redraw();
}
static void sig_usr2(int sig) {
yutani_set_stack(yctx, panel, YUTANI_ZORDER_TOP);
yutani_flip(yctx, panel);
}
int main (int argc, char ** argv) {
if (argc < 2 || strcmp(argv[1],"--really")) {
fprintf(stderr,
"%s: Desktop environment panel / dock\n"
"\n"
" Renders the application menu, window list, widgets,\n"
" alt-tab window switcher, clock, etc.\n"
" You probably don't want to run this directly - it is\n"
" started automatically by the session manager.\n", argv[0]);
return 1;
}
/* Connect to window server */
yctx = yutani_init();
/* For convenience, store the display size */
width = yctx->display_width;
height = yctx->display_height;
/* Create the panel window */
panel = yutani_window_create_flags(yctx, width, PANEL_HEIGHT, YUTANI_WINDOW_FLAG_NO_STEAL_FOCUS);
/* And move it to the top layer */
yutani_set_stack(yctx, panel, YUTANI_ZORDER_TOP);
/* Initialize graphics context against the window */
ctx = init_graphics_yutani_double_buffer(panel);
/* Clear it out (the compositor should initialize it cleared anyway */
draw_fill(ctx, rgba(0,0,0,0));
flip(ctx);
yutani_flip(yctx, panel);
/* Load textures for the background and logout button */
sprite_panel = malloc(sizeof(sprite_t));
sprite_logout = malloc(sizeof(sprite_t));
load_sprite(sprite_panel, "/usr/share/panel.bmp");
sprite_panel->alpha = ALPHA_EMBEDDED;
load_sprite(sprite_logout, "/usr/share/icons/panel-shutdown.bmp");
sprite_logout->alpha = ALPHA_FORCE_SLOW_EMBEDDED;
struct stat stat_tmp;
if (!stat("/dev/dsp",&stat_tmp)) {
widgets_volume_enabled = 1;
widgets_width += WIDGET_WIDTH;
sprite_volume_mute = malloc(sizeof(sprite_t));
sprite_volume_low = malloc(sizeof(sprite_t));
sprite_volume_med = malloc(sizeof(sprite_t));
sprite_volume_high = malloc(sizeof(sprite_t));
load_sprite(sprite_volume_mute, "/usr/share/icons/24/volume-mute.bmp");
sprite_volume_mute->alpha = ALPHA_FORCE_SLOW_EMBEDDED;
load_sprite(sprite_volume_low, "/usr/share/icons/24/volume-low.bmp");
sprite_volume_low->alpha = ALPHA_FORCE_SLOW_EMBEDDED;
load_sprite(sprite_volume_med, "/usr/share/icons/24/volume-medium.bmp");
sprite_volume_med->alpha = ALPHA_FORCE_SLOW_EMBEDDED;
load_sprite(sprite_volume_high, "/usr/share/icons/24/volume-full.bmp");
sprite_volume_high->alpha = ALPHA_FORCE_SLOW_EMBEDDED;
/* XXX store current volume */
}
{
widgets_network_enabled = 1;
widgets_width += WIDGET_WIDTH;
sprite_net_active = malloc(sizeof(sprite_t));
load_sprite(sprite_net_active, "/usr/share/icons/24/net-active.bmp");
sprite_net_active->alpha = ALPHA_FORCE_SLOW_EMBEDDED;
sprite_net_disabled = malloc(sizeof(sprite_t));
load_sprite(sprite_net_disabled, "/usr/share/icons/24/net-disconnected.bmp");
sprite_net_disabled->alpha = ALPHA_FORCE_SLOW_EMBEDDED;
}
/* Draw the background */
for (int i = 0; i < width; i += sprite_panel->width) {
draw_sprite(ctx, sprite_panel, i, 0);
}
/* Copy the prerendered background so we can redraw it quickly */
bg_size = panel->width * panel->height * sizeof(uint32_t);
bg_blob = malloc(bg_size);
memcpy(bg_blob, ctx->backbuffer, bg_size);
/* Catch SIGINT */
signal(SIGINT, sig_int);
signal(SIGUSR2, sig_usr2);
appmenu = menu_set_get_root(menu_set_from_description("/usr/share/demo.menu", launch_application_menu));
window_menu = menu_create();
menu_insert(window_menu, menu_create_normal(NULL, NULL, "Maximize", _window_menu_start_maximize));
menu_insert(window_menu, menu_create_normal(NULL, NULL, "Move", _window_menu_start_move));
menu_insert(window_menu, menu_create_separator());
menu_insert(window_menu, menu_create_normal(NULL, NULL, "Close", _window_menu_close));
logout_menu = menu_create();
menu_insert(logout_menu, menu_create_normal("exit", "log-out", "Log Out", launch_application_menu));
/* Subscribe to window updates */
yutani_subscribe_windows(yctx);
/* Ask compositor for window list */
update_window_list();
/* Key bindings */
/* Cltr-Alt-T = launch terminal */
yutani_key_bind(yctx, 't', KEY_MOD_LEFT_CTRL | KEY_MOD_LEFT_ALT, YUTANI_BIND_STEAL);
/* Alt+Tab = app switcher*/
yutani_key_bind(yctx, '\t', KEY_MOD_LEFT_ALT, YUTANI_BIND_STEAL);
yutani_key_bind(yctx, '\t', KEY_MOD_LEFT_ALT | KEY_MOD_LEFT_SHIFT, YUTANI_BIND_STEAL);
/* Ctrl-F11 = toggle panel visibility */
yutani_key_bind(yctx, KEY_F11, KEY_MOD_LEFT_CTRL, YUTANI_BIND_STEAL);
/* Alt+F1 = show menu */
yutani_key_bind(yctx, KEY_F1, KEY_MOD_LEFT_ALT, YUTANI_BIND_STEAL);
/* Alt+F2 = show app runner */
yutani_key_bind(yctx, KEY_F2, KEY_MOD_LEFT_ALT, YUTANI_BIND_STEAL);
/* This lets us receive all just-modifier key releases */
yutani_key_bind(yctx, KEY_LEFT_ALT, 0, YUTANI_BIND_PASSTHROUGH);
time_t last_tick = 0;
int fds[1] = {fileno(yctx->sock)};
while (_continue) {
int index = syscall_fswait2(1,fds,200);
if (index == 0) {
/* Respond to Yutani events */
yutani_msg_t * m = yutani_poll(yctx);
while (m) {
menu_process_event(yctx, m);
switch (m->type) {
/* New window information is available */
case YUTANI_MSG_NOTIFY:
update_window_list();
break;
/* Mouse movement / click */
case YUTANI_MSG_WINDOW_MOUSE_EVENT:
panel_check_click((struct yutani_msg_window_mouse_event *)m->data);
break;
case YUTANI_MSG_KEY_EVENT:
handle_key_event((struct yutani_msg_key_event *)m->data);
break;
case YUTANI_MSG_WELCOME:
{
struct yutani_msg_welcome * mw = (void*)m->data;
width = mw->display_width;
height = mw->display_height;
yutani_window_resize(yctx, panel, mw->display_width, PANEL_HEIGHT);
}
break;
case YUTANI_MSG_RESIZE_OFFER:
{
struct yutani_msg_window_resize * wr = (void*)m->data;
resize_finish(wr->width, wr->height);
}
break;
default:
break;
}
free(m);
m = yutani_poll_async(yctx);
}
} else {
struct timeval now;
gettimeofday(&now, NULL);
if (now.tv_sec != last_tick) {
last_tick = now.tv_sec;
waitpid(-1, NULL, WNOHANG);
update_volume_level();
update_network_status();
redraw();
}
}
}
/* Close the panel window */
yutani_close(yctx, panel);
/* Stop notifying us of window changes */
yutani_unsubscribe_windows(yctx);
return 0;
}
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