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toaruos/apps/file-browser.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) 2018 K. Lange
*
* file-browser - Graphical file manager.
*
* Based on the original Python implementation and inspired by
* Nautilus and Thunar. Also provides a "wallpaper" mode for
* managing the desktop backgrond.
*/
#include <stdio.h>
#include <unistd.h>
#include <dirent.h>
#include <time.h>
#include <math.h>
#include <libgen.h>
#include <signal.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <toaru/yutani.h>
#include <toaru/graphics.h>
#include <toaru/decorations.h>
#include <toaru/menu.h>
#include <toaru/icon_cache.h>
#include <toaru/list.h>
#include <toaru/sdf.h>
#include <toaru/button.h>
#include <toaru/jpeg.h>
#define APPLICATION_TITLE "File Browser"
#define SCROLL_AMOUNT 120
#define WALLPAPER_PATH "/usr/share/wallpaper.jpg"
struct File {
char name[256]; /* Displayed name (icon label) */
char icon[256]; /* Icon identifier */
char link[256]; /* Link target for symlinks */
char launcher[256]; /* Launcher spec */
char filename[256]; /* Actual filename for launchers */
int type; /* File type: 0 = normal, 1 = directory, 2 = launcher */
int selected; /* Selection status */
};
static yutani_t * yctx;
static yutani_window_t * main_window;
static gfx_context_t * ctx;
static int application_running = 1; /* Big loop exit condition */
static int show_hidden = 0; /* Whether or not show hidden files */
static int scroll_offset = 0; /* How far the icon view should be scrolled */
static int available_height = 0; /* How much space is available in the main window for the icon view */
static int is_desktop_background = 0; /* If we're in desktop background mode */
static int menu_bar_height = MENU_BAR_HEIGHT + 36; /* Height of the menu bar, if present - it's not in desktop mode */
static sprite_t * wallpaper_buffer = NULL; /* Prebaked wallpaper texture */
static char title[512]; /* Application title bar */
static int FILE_HEIGHT = 80; /* Height of one row of icons */
static int FILE_WIDTH = 100; /* Width of one column of icons */
static int FILE_PTR_WIDTH = 1; /* How many icons wide the display should be */
static sprite_t * contents_sprite = NULL; /* Icon view rendering context */
static gfx_context_t * contents = NULL; /* Icon view rendering context */
static char * current_directory = NULL; /* Current directory path */
static int hilighted_offset = -1; /* Which file is hovered by the mouse */
static struct File ** file_pointers = NULL; /* List of file pointers */
static ssize_t file_pointers_len = 0; /* How many files are in the current list */
static uint64_t last_click = 0; /* For double click */
static int last_click_offset = -1; /* So that clicking two different things quickly doesn't count as a double click */
static int modifiers = 0; /* For ctrl-click */
static int _button_hilights[4] = {3,3,3,3};
static int _button_disabled[4] = {1,1,0,0};
static int _button_hover = -1;
/* Menu bar entries */
static struct menu_bar menu_bar = {0};
static struct menu_bar_entries menu_entries[] = {
{"File", "file"},
{"Edit", "edit"},
{"View", "view"},
{"Go", "go"},
{"Help", "help"},
{NULL, NULL},
};
static struct MenuList * context_menu = NULL;
/**
* Accurate time comparison.
*
* These methods were taken from the compositor and
* allow us to time double-clicks accurately.
*/
static uint64_t precise_current_time(void) {
struct timeval t;
gettimeofday(&t, NULL);
time_t sec_diff = t.tv_sec;
suseconds_t usec_diff = t.tv_usec;
return (uint64_t)(sec_diff * 1000 + usec_diff / 1000);
}
static uint64_t precise_time_since(uint64_t start_time) {
uint32_t now = precise_current_time();
uint32_t diff = now - start_time; /* Milliseconds */
return diff;
}
/**
* When in desktop mode, we fake decoration boundaries to
* position the icon view correctly. When in normal mode,
* we just passt through the actual bounds.
*/
static int _decor_get_bounds(yutani_window_t * win, struct decor_bounds * bounds) {
if (is_desktop_background) {
memset(bounds, 0, sizeof(struct decor_bounds));
bounds->top_height = 54;
bounds->left_width = 20;
return 0;
}
return decor_get_bounds(win, bounds);
}
/**
* This should probably be in a yutani core library...
*
* If a down and up event were close enough together to be considered a click.
*/
static int _close_enough(struct yutani_msg_window_mouse_event * me) {
if (me->command == YUTANI_MOUSE_EVENT_RAISE && sqrt(pow(me->new_x - me->old_x, 2) + pow(me->new_y - me->old_y, 2)) < 10) {
return 1;
}
return 0;
}
/**
* Clear out the space for an icon.
* We clear to transparent so that the desktop background can be shown in desktop mode.
*/
static void clear_offset(int offset) {
/* From the flat array offset, figure out the x/y offset. */
int offset_y = offset / FILE_PTR_WIDTH;
int offset_x = offset % FILE_PTR_WIDTH;
draw_rectangle_solid(contents, offset_x * FILE_WIDTH, offset_y * FILE_HEIGHT, FILE_WIDTH, FILE_HEIGHT, rgba(0,0,0,0));
}
/**
* Draw an icon view entry
*/
static void draw_file(struct File * f, int offset) {
/* From the flat array offset, figure out the x/y offset. */
int offset_y = offset / FILE_PTR_WIDTH;
int offset_x = offset % FILE_PTR_WIDTH;
int x = offset_x * FILE_WIDTH;
int y = offset_y * FILE_HEIGHT;
/* Load the icon sprite from the cache */
sprite_t * icon = icon_get_48(f->icon);
/* If the display name is too long to fit, cut it with an ellipsis. */
int len = strlen(f->name);
char * name = malloc(len + 4);
memcpy(name, f->name, len + 1);
int name_width;
while ((name_width = draw_sdf_string_width(name, 16, SDF_FONT_THIN)) > FILE_WIDTH - 8 /* Padding */) {
len--;
name[len+0] = '.';
name[len+1] = '.';
name[len+2] = '.';
name[len+3] = '\0';
}
/* Draw the icon */
int center_x_icon = (FILE_WIDTH - icon->width) / 2;
int center_x_text = (FILE_WIDTH - name_width) / 2;
draw_sprite(contents, icon, center_x_icon + x, y + 2);
if (f->selected) {
/* If this file is selected, paint the icon blue... */
if (main_window->focused) {
draw_sprite_alpha_paint(contents, icon, center_x_icon + x, y + 2, 0.5, rgb(72,167,255));
}
/* And draw the name with a blue background and white text */
draw_rounded_rectangle(contents, center_x_text + x - 2, y + 54, name_width + 6, 20, 3, rgb(72,167,255));
draw_sdf_string(contents, center_x_text + x, y + 54, name, 16, rgb(255,255,255), SDF_FONT_THIN);
} else {
if (is_desktop_background) {
/* If this is the desktop view, white text with a drop shadow */
draw_sdf_string_stroke(contents, center_x_text + x + 1, y + 55, name, 16, rgba(0,0,0,120), SDF_FONT_THIN, 1.7, 0.5);
draw_sdf_string(contents, center_x_text + x, y + 54, name, 16, rgb(255,255,255), SDF_FONT_THIN);
} else {
/* Otherwise, black text */
draw_sdf_string(contents, center_x_text + x, y + 54, name, 16, rgb(0,0,0), SDF_FONT_THIN);
}
}
if (offset == hilighted_offset) {
/* The hovered icon should have some added brightness, so paint it white */
draw_sprite_alpha_paint(contents, icon, center_x_icon + x, y + 2, 0.3, rgb(255,255,255));
}
if (f->link[0]) {
/* For symlinks, draw an indicator */
sprite_t * arrow = icon_get_16("forward");
draw_sprite(contents, arrow, center_x_icon + 32 + x, y + 32);
}
free(name);
}
/**
* Get file from array offset, with bounds check
*/
static struct File * get_file_at_offset(int offset) {
if (offset >= 0 && offset < file_pointers_len) {
return file_pointers[offset];
}
return NULL;
}
/**
* Redraw all icon view entries
*/
static void redraw_files(void) {
/* Fill to blank */
draw_fill(contents, rgba(0,0,0,0));
for (int i = 0; i < file_pointers_len; ++i) {
draw_file(file_pointers[i], i);
}
}
/**
* Set the application title.
*/
static void set_title(char * directory) {
/* Do nothing in desktop mode to avoid advertisement. */
if (is_desktop_background) return;
/* If the directory name is set... */
if (directory) {
sprintf(title, "%s - " APPLICATION_TITLE, directory);
} else {
/* Otherwise, just "File Browser" */
sprintf(title, APPLICATION_TITLE);
}
/* Advertise to the panel */
yutani_window_advertise_icon(yctx, main_window, title, "folder");
}
/**
* Check if a file name ends with an extension.
*
* Can also be used for exact matches.
*/
static int has_extension(struct File * f, char * extension) {
int i = strlen(f->name);
int j = strlen(extension);
do {
if (f->name[i] != (extension)[j]) break;
if (j == 0) return 1;
if (i == 0) break;
i--;
j--;
} while (1);
return 0;
}
static list_t * history_back;
static list_t * history_forward;
/**
* Read the contents of a directory into the icon view.
*/
static void load_directory(const char * path, int modifies_history) {
/* Free the current icon view entries */
if (file_pointers) {
for (int i = 0; i < file_pointers_len; ++i) {
free(file_pointers[i]);
}
free(file_pointers);
}
DIR * dirp = opendir(path);
if (!dirp) {
/**
* TODO: This should probably show a dialog and then reload the current directory,
* or maybe we should be checking this before clearing the current file pointers.
*/
file_pointers = NULL;
file_pointers_len = 0;
return;
}
if (modifies_history) {
/* Clear forward history */
list_destroy(history_forward);
list_free(history_forward);
free(history_forward);
history_forward = list_create();
/* Append current pointer */
if (current_directory) {
list_insert(history_back, strdup(current_directory));
}
}
if (current_directory) {
free(current_directory);
}
_button_disabled[0] = !(history_back->length);
_button_disabled[1] = !(history_forward->length);
_button_disabled[2] = 0;
_button_disabled[3] = 0;
char * home = getenv("HOME");
if (home && !strcmp(path, home)) {
/* If the current directory is the user's homedir, present it that way in the title */
set_title("Home");
_button_disabled[3] = 1;
} else if (!strcmp(path, "/")) {
set_title("File System");
_button_disabled[2] = 1;
} else {
/* Otherwise use just the directory base name */
char * tmp = strdup(path);
char * base = basename(tmp);
set_title(base);
free(tmp);
}
/* If we ended up in a path with //two/initial/slashes, fix that. */
if (path[0] == '/' && path[1] == '/') {
current_directory = strdup(path+1);
} else {
current_directory = strdup(path);
}
/* TODO: Show relative time informaton... */
#if 0
/* Get the current time */
struct tm * timeinfo;
struct timeval now;
gettimeofday(&now, NULL); //time(NULL);
timeinfo = localtime((time_t *)&now.tv_sec);
int this_year = timeinfo->tm_year;
#endif
list_t * file_list = list_create();
struct dirent * ent = readdir(dirp);
while (ent != NULL) {
if (ent->d_name[0] == '.' &&
(ent->d_name[1] == '\0' ||
(ent->d_name[1] == '.' &&
ent->d_name[2] == '\0'))) {
/* skip . and .. */
ent = readdir(dirp);
continue;
}
if (show_hidden || (ent->d_name[0] != '.')) {
/* Set display name from file name */
struct File * f = malloc(sizeof(struct File));
sprintf(f->name, "%s", ent->d_name); /* snprintf? copy min()? */
struct stat statbuf;
struct stat statbufl;
/* Calculate absolute path to file */
char tmp[strlen(path)+strlen(ent->d_name)+2];
sprintf(tmp, "%s/%s", path, ent->d_name);
lstat(tmp, &statbuf);
/* Read link target for symlinks */
if (S_ISLNK(statbuf.st_mode)) {
memcpy(&statbufl, &statbuf, sizeof(struct stat));
stat(tmp, &statbuf);
readlink(tmp, f->link, 256);
} else {
f->link[0] = '\0';
}
f->launcher[0] = '\0';
f->selected = 0;
if (S_ISDIR(statbuf.st_mode)) {
/* Directory */
sprintf(f->icon, "folder");
f->type = 1;
} else {
/* Regular file */
/* Default regular files to open in bim */
sprintf(f->launcher, "exec terminal bim");
if (is_desktop_background && has_extension(f, ".launcher")) {
/* In desktop mode, read launchers specially */
FILE * file = fopen(tmp,"r");
char tbuf[1024];
while (!feof(file)) {
fgets(tbuf, 1024, file);
char * nl = strchr(tbuf,'\n');
if (nl) *nl = '\0';
char * eq = strchr(tbuf,'=');
if (!eq) continue;
*eq = '\0'; eq++;
if (!strcmp(tbuf, "icon")) {
sprintf(f->icon, "%s", eq);
} else if (!strcmp(tbuf, "run")) {
sprintf(f->launcher, "%s #", eq);
} else if (!strcmp(tbuf, "title")) {
sprintf(f->name, eq);
}
}
sprintf(f->filename, "%s", ent->d_name);
f->type = 2;
} else {
/* Handle various file types */
if (has_extension(f, ".c")) {
sprintf(f->icon, "c");
} else if (has_extension(f, ".h")) {
sprintf(f->icon, "h");
} else if (has_extension(f, ".bmp") || has_extension(f, ".jpg")) {
sprintf(f->icon, "image");
sprintf(f->launcher, "exec imgviewer");
} else if (has_extension(f, ".sdf") || has_extension(f, ".ttf")) {
sprintf(f->icon, "font");
/* TODO: Font viewer for SDF and TrueType */
} else if (has_extension(f, ".tgz") || has_extension(f, ".tar") || has_extension(f, ".tar.gz")) {
/* Or dozens of others... */
sprintf(f->icon, "package");
/* TODO: Archive tool? Extract locally? */
} else if (has_extension(f, ".sh")) {
sprintf(f->icon, "sh");
if (statbuf.st_mode & 0111) {
/* Make executable */
sprintf(f->launcher, "SELF");
}
} else if (statbuf.st_mode & 0111) {
/* Executable files - use their name for their icon, and launch themselves. */
sprintf(f->icon, "%s", f->name);
sprintf(f->launcher, "SELF");
} else {
sprintf(f->icon, "file");
}
f->type = 0;
}
}
list_insert(file_list, f);
}
ent = readdir(dirp);
}
closedir(dirp);
/* Store the entries in a flat array. */
file_pointers = malloc(sizeof(struct File *) * file_list->length);
file_pointers_len = file_list->length;
int i = 0;
foreach (node, file_list) {
file_pointers[i] = node->value;
i++;
}
/* Free our temporary linked list */
list_free(file_list);
free(file_list);
/* Sort files */
int comparator(const void * c1, const void * c2) {
const struct File * f1 = *(const struct File **)(c1);
const struct File * f2 = *(const struct File **)(c2);
/* Launchers before directories before files */
if (f1->type > f2->type) return -1;
if (f2->type > f1->type) return 1;
/* Launchers sorted by filename, not by display name */
if (f1->type == 2 && f2->type == 2) {
return strcmp(f1->filename, f2->filename);
}
/* Files sorted by name */
return strcmp(f1->name, f2->name);
}
qsort(file_pointers, file_pointers_len, sizeof(struct File *), comparator);
/* Reset scroll offset when navigating */
scroll_offset = 0;
}
/**
* Resize and redraw the icon view */
static void reinitialize_contents(void) {
/* If there already is a context, free it. */
if (contents) {
free(contents);
}
/* If there already is a context buffer, free it. */
if (contents_sprite) {
sprite_free(contents_sprite);
}
/* Get window bounds to determine how wide we can make our icon view */
struct decor_bounds bounds;
_decor_get_bounds(main_window, &bounds);
if (is_desktop_background) {
/**
* TODO: Actually calculate an optimal FILE_PTR_WIDTH or fix this to
* work properly with vertical rows of files
*/
FILE_PTR_WIDTH = 1;
} else {
FILE_PTR_WIDTH = (ctx->width - bounds.width) / FILE_WIDTH;
}
/* Calculate required height to fit files */
int calculated_height = (file_pointers_len / FILE_PTR_WIDTH + 1) * FILE_HEIGHT;
/* Create buffer */
contents_sprite = create_sprite(FILE_PTR_WIDTH * FILE_WIDTH, calculated_height, ALPHA_EMBEDDED);
contents = init_graphics_sprite(contents_sprite);
/* Draw file entries */
redraw_files();
}
/**
* Redraw the entire window.
*/
static void redraw_window(void) {
if (!is_desktop_background) {
/* Clear to white and draw decorations */
draw_fill(ctx, rgb(255,255,255));
render_decorations(main_window, ctx, title);
} else {
/* Draw wallpaper in desktop mode */
draw_sprite(ctx, wallpaper_buffer, 0, 0);
}
struct decor_bounds bounds;
_decor_get_bounds(main_window, &bounds);
if (!is_desktop_background) {
/* Position, size, and draw the menu bar */
menu_bar.x = bounds.left_width;
menu_bar.y = bounds.top_height;
menu_bar.width = ctx->width - bounds.width;
menu_bar.window = main_window;
menu_bar_render(&menu_bar, ctx);
/* Draw toolbar */
uint32_t gradient_top = rgb(59,59,59);
uint32_t gradient_bot = rgb(40,40,40);
for (int i = 0; i < 37; ++i) {
uint32_t c = interp_colors(gradient_top, gradient_bot, i * 255 / 36);
draw_rectangle(ctx, bounds.left_width, bounds.top_height + MENU_BAR_HEIGHT + i,
ctx->width - bounds.width, 1, c);
}
int x = 0;
int i = 0;
#define draw_button(label) do { \
struct TTKButton _up = {bounds.left_width + 2 + x,bounds.top_height + MENU_BAR_HEIGHT + 2,32,32,"\033" label,_button_hilights[i] | (_button_disabled[i] << 8)}; \
ttk_button_draw(ctx, &_up); \
x += 34; i++; } while (0)
draw_button("back");
draw_button("forward");
draw_button("up");
draw_button("home");
struct gradient_definition edge = {28, bounds.top_height + MENU_BAR_HEIGHT + 3, rgb(90,90,90), rgb(110,110,110)};
draw_rounded_rectangle_pattern(ctx, bounds.left_width + 2 + x + 1, bounds.top_height + MENU_BAR_HEIGHT + 4, main_window->width - bounds.width - x - 6, 26, 4, gfx_vertical_gradient_pattern, &edge);
draw_rounded_rectangle(ctx, bounds.left_width + 2 + x + 2, bounds.top_height + MENU_BAR_HEIGHT + 5, main_window->width - bounds.width - x - 8, 24, 3, rgb(250,250,250));
int max_width = main_window->width - bounds.width - x - 12;
int len = strlen(current_directory);
char * name = malloc(len + 4);
memcpy(name, current_directory, len + 1);
int name_width;
while ((name_width = draw_sdf_string_width(name, 16, SDF_FONT_THIN)) > max_width) {
len--;
name[len+0] = '.';
name[len+1] = '.';
name[len+2] = '.';
name[len+3] = '\0';
}
draw_sdf_string(ctx, bounds.left_width + 2 + x + 5, bounds.top_height + MENU_BAR_HEIGHT + 8, name, 16, rgb(0,0,0), SDF_FONT_THIN);
}
/* Draw the icon view, clipped to the viewport and scrolled appropriately. */
gfx_clear_clip(ctx);
gfx_add_clip(ctx, bounds.left_width, bounds.top_height + menu_bar_height, ctx->width - bounds.width, available_height);
draw_sprite(ctx, contents_sprite, bounds.left_width, bounds.top_height + menu_bar_height - scroll_offset);
gfx_clear_clip(ctx);
gfx_add_clip(ctx, 0, 0, ctx->width, ctx->height);
/* Flip graphics context and inform compositor */
flip(ctx);
yutani_flip(yctx, main_window);
}
/**
* Loads and bakes the wallpaper to the appropriate size.
*/
static void draw_background(int width, int height) {
/* If the wallpaper is already loaded, free it. */
if (wallpaper_buffer) {
sprite_free(wallpaper_buffer);
}
/* Open the wallpaper */
sprite_t * wallpaper = malloc(sizeof(sprite_t));
char * wallpaper_path = WALLPAPER_PATH;
int free_it = 0;
char * home = getenv("HOME");
if (home) {
fprintf(stderr, "trying config\n");
char tmp[512];
sprintf(tmp, "%s/.wallpaper.conf", home);
FILE * c = fopen(tmp, "r");
if (c) {
char line[1024];
while (!feof(c)) {
fgets(line, 1024, c);
char * nl = strchr(line, '\n');
if (nl) *nl = '\0';
if (line[0] == ';') {
continue;
}
if (strstr(line, "wallpaper=") == line) {
free_it = 1;
fprintf(stderr, "have config\n");
wallpaper_path = strdup(line+strlen("wallpaper="));
break;
}
}
fclose(c);
}
}
load_sprite_jpg(wallpaper, wallpaper_path);
if (free_it) {
free(wallpaper_path);
}
wallpaper->alpha = 0;
fprintf(stderr, "done?\n");
/* Create a new buffer to hold the baked wallpaper */
wallpaper_buffer = create_sprite(width, height, 0);
gfx_context_t * ctx = init_graphics_sprite(wallpaper_buffer);
/* Calculate the appropriate scaled size to fit the screen. */
float x = (float)width / (float)wallpaper->width;
float y = (float)height / (float)wallpaper->height;
int nh = (int)(x * (float)wallpaper->height);
int nw = (int)(y * (float)wallpaper->width);
/* Clear to black to avoid odd transparency issues along edges */
draw_fill(ctx, rgb(0,0,0));
/* Scale the wallpaper into the buffer. */
if (nw == wallpaper->width && nh == wallpaper->height) {
/* No scaling necessary */
draw_sprite(ctx, wallpaper, 0, 0);
} else if (nw >= width) {
/* Scaled wallpaper is wider, height should match. */
draw_sprite_scaled(ctx, wallpaper, ((int)width - nw) / 2, 0, nw+2, height);
} else {
/* Scaled wallpaper is taller, width should match. */
draw_sprite_scaled(ctx, wallpaper, 0, ((int)height - nh) / 2, width+2, nh);
}
/* Free the original wallpaper. */
sprite_free(wallpaper);
free(ctx);
}
/**
* Resize window when asked by the compositor.
*/
static void resize_finish(int w, int h) {
if (w < 300 || h < 300) {
yutani_window_resize_offer(yctx, main_window, w < 300 ? 300 : w, h < 300 ? 300 : h);
return;
}
int width_changed = (main_window->width != (unsigned int)w);
yutani_window_resize_accept(yctx, main_window, w, h);
reinit_graphics_yutani(ctx, main_window);
struct decor_bounds bounds;
_decor_get_bounds(main_window, &bounds);
/* Recalculate available size */
available_height = ctx->height - menu_bar_height - bounds.height;
/* If the width changed, we need to rebuild the icon view */
if (width_changed) {
reinitialize_contents();
}
/* Make sure we're not scrolled weirdly after resizing */
if (available_height > contents->height) {
scroll_offset = 0;
} else {
if (scroll_offset > contents->height - available_height) {
scroll_offset = contents->height - available_height;
}
}
/* If the desktop background changes size, we have to reload and rescale the wallpaper */
if (is_desktop_background) {
draw_background(w, h);
}
/* Redraw */
redraw_window();
yutani_window_resize_done(yctx, main_window);
yutani_flip(yctx, main_window);
}
/* TODO: We don't have an input box yet. */
#if 0
static void _menu_action_input_path(struct MenuEntry * entry) {
}
#endif
/* File > Exit */
static void _menu_action_exit(struct MenuEntry * entry) {
application_running = 0;
}
/* Go > ... generic handler */
static void _menu_action_navigate(struct MenuEntry * entry) {
/* go to entry->action */
struct MenuEntry_Normal * _entry = (void*)entry;
load_directory(_entry->action, 1);
reinitialize_contents();
redraw_window();
}
/* Go > Up */
static void _menu_action_up(struct MenuEntry * entry) {
/* go up */
char * tmp = strdup(current_directory);
char * dir = dirname(tmp);
load_directory(dir, 1);
reinitialize_contents();
redraw_window();
}
/* [Context] > Refresh */
static void _menu_action_refresh(struct MenuEntry * entry) {
char * tmp = strdup(current_directory);
load_directory(tmp, 0);
reinitialize_contents();
redraw_window();
}
/* Help > Contents */
static void _menu_action_help(struct MenuEntry * entry) {
/* show help documentation */
system("help-browser file-browser.trt &");
redraw_window();
}
/* [Context] > Copy */
static void _menu_action_copy(struct MenuEntry * entry) {
size_t output_size = 0;
/* Calculate required space for the clipboard */
int base_is_root = !strcmp(current_directory, "/"); /* avoid redundant slash */
for (int i = 0; i < file_pointers_len; ++i) {
if (file_pointers[i]->selected) {
output_size += strlen(current_directory) + !base_is_root + strlen(file_pointers[i]->type == 2 ? file_pointers[i]->filename : file_pointers[i]->name) + 1; /* base / file \n */
}
}
/* Nothing to copy? */
if (!output_size) return;
/* Create the clipboard contents as a LF-separated list of absolute paths */
char * clipboard = malloc(output_size+1); /* last nil */
clipboard[0] = '\0';
for (int i = 0; i < file_pointers_len; ++i) {
if (file_pointers[i]->selected) {
strcat(clipboard, current_directory);
if (!base_is_root) { strcat(clipboard, "/"); }
strcat(clipboard, file_pointers[i]->type == 2 ? file_pointers[i]->filename : file_pointers[i]->name);
strcat(clipboard, "\n");
}
}
if (clipboard[output_size-1] == '\n') {
/* Remove trailing line feed */
clipboard[output_size-1] = '\0';
}
yutani_set_clipboard(yctx, clipboard);
free(clipboard);
}
static void _menu_action_paste(struct MenuEntry * entry) {
yutani_special_request(yctx, NULL, YUTANI_SPECIAL_REQUEST_CLIPBOARD);
}
/* Help > About File Browser */
static void _menu_action_about(struct MenuEntry * entry) {
/* Show About dialog */
char about_cmd[1024] = "\0";
strcat(about_cmd, "about \"About File Browser\" /usr/share/icons/48/folder.bmp \"ToaruOS File Browser\" \"(C) 2018 K. Lange\n-\nPart of ToaruOS, which is free software\nreleased under the NCSA/University of Illinois\nlicense.\n-\n%https://toaruos.org\n%https://gitlab.com/toaruos\" ");
char coords[100];
sprintf(coords, "%d %d &", (int)main_window->x + (int)main_window->width / 2, (int)main_window->y + (int)main_window->height / 2);
strcat(about_cmd, coords);
system(about_cmd);
redraw_window();
}
/**
* Generic application launcher - like system(), but without the wait.
* Also sets the working directory to the currently-opened directory.
*/
static void launch_application(char * app) {
if (!fork()) {
if (current_directory) chdir(current_directory);
char * tmp = malloc(strlen(app) + 10);
sprintf(tmp, "%s", app);
char * args[] = {"/bin/sh", "-c", tmp, NULL};
execvp(args[0], args);
exit(1);
}
}
/* Generic handler for various launcher menus */
static void launch_application_menu(struct MenuEntry * self) {
struct MenuEntry_Normal * _self = (void *)self;
launch_application((char *)_self->action);
}
/**
* Perform the appropriate action to open a File
*/
static void open_file(struct File * f) {
if (f->type == 1) {
char tmp[1024];
if (is_desktop_background) {
/* Always open directories in new file browser windows when launched from desktop */
sprintf(tmp,"file-browser \"%s/%s\"", current_directory, f->name);
launch_application(tmp);
} else {
/* In normal mode, navigate to this directory. */
sprintf(tmp,"%s/%s", current_directory, f->name);
load_directory(tmp, 1);
reinitialize_contents();
redraw_window();
}
} else if (f->launcher[0]) {
char tmp[4096];
if (!strcmp(f->launcher, "SELF")) {
/* "SELF" launchers are for binaries. */
sprintf(tmp, "exec ./%s", f->name);
} else {
/* Other launchers shouuld take file names as arguments.
* NOTE: If you don't want the file name, you can append # to your launcher.
* Since it's parsed by the shell, this will yield a comment.
*/
sprintf(tmp, "%s \"%s\"", f->launcher, f->name);
}
launch_application(tmp);
}
}
/* [Context] > Open */
static void _menu_action_open(struct MenuEntry * self) {
for (int i = 0; i < file_pointers_len; ++i) {
if (file_pointers[i]->selected) {
open_file(file_pointers[i]);
}
}
}
/* [Context] > Edit in Bim */
static void _menu_action_edit(struct MenuEntry * self) {
for (int i = 0; i < file_pointers_len; ++i) {
if (file_pointers[i]->selected) {
char tmp[1024];
sprintf(tmp, "exec terminal bim \"%s\"", file_pointers[i]->type == 2 ? file_pointers[i]->filename : file_pointers[i]->name);
launch_application(tmp);
}
}
}
/* View > (Show/Hide) Hidden Files */
static void _menu_action_toggle_hidden(struct MenuEntry * self) {
show_hidden = !show_hidden;
menu_update_title(self, show_hidden ? "Hide Hidden Files" : "Show Hidden Files");
_menu_action_refresh(NULL);
}
static void _menu_action_select_all(struct MenuEntry * self) {
for (int i = 0; i < file_pointers_len; ++i) {
file_pointers[i]->selected = 1;
}
reinitialize_contents();
redraw_window();
}
static void handle_clipboard(char * contents) {
fprintf(stderr, "Received clipboard:\n%s\n",contents);
char * file = contents;
while (file && *file) {
char * next_file = strchr(file, '\n');
if (next_file) {
*next_file = '\0';
next_file++;
}
/* determine if the destination already exists */
char * cheap_basename = strrchr(file, '/');
if (!cheap_basename) cheap_basename = file;
else cheap_basename++;
char destination[4096];
sprintf(destination, "%s/%s", current_directory, cheap_basename);
struct stat statbuf;
if (!stat(destination, &statbuf)) {
char message[4096];
sprintf(message, "showdialog \"File Browser\" /usr/share/icons/48/folder.bmp \"Not overwriting file '%s'.\"", cheap_basename);
launch_application(message);
} else {
char cp[1024];
sprintf(cp, "cp -r \"%s\" \"%s\"", file, current_directory);
if (system(cp)) {
char message[4096];
sprintf(message, "showdialog \"File Browser\" /usr/share/icons/48/folder.bmp \"Error copying file '%s'.\"", cheap_basename);
launch_application(message);
}
}
file = next_file;
}
_menu_action_refresh(NULL);
}
/**
* Toggle the selected status of the highlighted icon.
*
* When Ctrl is held, the current selection is maintained.
*/
static void toggle_selected(int hilighted_offset, int modifiers) {
struct File * f = get_file_at_offset(hilighted_offset);
/* No file at this offset, do nothing. */
if (!f) return;
/* Toggle selection of the current file */
f->selected = !f->selected;
/* If Ctrl wasn't held, unselect everything else. */
if (!(modifiers & KEY_MOD_LEFT_CTRL)) {
for (int i = 0; i < file_pointers_len; ++i) {
if (file_pointers[i] != f && file_pointers[i]->selected) {
file_pointers[i]->selected = 0;
clear_offset(i);
draw_file(file_pointers[i], i);
}
}
}
/* Redraw the file */
clear_offset(hilighted_offset);
draw_file(f, hilighted_offset);
/* And repaint the window */
redraw_window();
}
static int _down_button = -1;
static void _set_hilight(int index, int hilight) {
int _update = 0;
if (_button_hover != index || (_button_hover == index && index != -1 && _button_hilights[index] != hilight)) {
if (_button_hover != -1 && _button_hilights[_button_hover] != 3) {
_button_hilights[_button_hover] = 3;
_update = 1;
}
_button_hover = index;
if (index != -1 && !_button_disabled[index]) {
_button_hilights[_button_hover] = hilight;
_update = 1;
}
if (_update) {
redraw_window();
}
}
}
static void _handle_button_press(int index) {
if (index != -1 && _button_disabled[index]) return; /* can't click disabled buttons */
switch (index) {
case 0:
/* Back */
if (history_back->length) {
list_insert(history_forward, strdup(current_directory));
node_t * next = list_pop(history_back);
load_directory(next->value, 0);
free(next->value);
free(next);
reinitialize_contents();
redraw_window();
}
break;
case 1:
/* Forward */
if (history_forward->length) {
list_insert(history_back, strdup(current_directory));
node_t * next = list_pop(history_forward);
load_directory(next->value, 0);
free(next->value);
free(next);
reinitialize_contents();
redraw_window();
}
break;
case 2:
/* Up */
_menu_action_up(NULL);
break;
case 3:
/* Home */
{
struct MenuEntry_Normal _fake = {.action = getenv("HOME") };
_menu_action_navigate(&_fake);
}
break;
default:
/* ??? */
break;
}
}
/**
* Desktop mode responsds to sig_usr2 by returning to
* the bottom of the Z-order stack.
*/
static void sig_usr2(int sig) {
yutani_set_stack(yctx, main_window, YUTANI_ZORDER_BOTTOM);
_menu_action_refresh(NULL);
signal(SIGUSR2, sig_usr2);
}
static void sig_usr1(int sig) {
yutani_window_resize_offer(yctx, main_window, yctx->display_width, yctx->display_height);
signal(SIGUSR1, sig_usr1);
}
int main(int argc, char * argv[]) {
yctx = yutani_init();
init_decorations();
int arg_ind = 1;
if (argc > 1 && !strcmp(argv[1], "--wallpaper")) {
is_desktop_background = 1;
menu_bar_height = 0;
signal(SIGUSR1, sig_usr1);
signal(SIGUSR2, sig_usr2);
draw_background(yctx->display_width, yctx->display_height);
main_window = yutani_window_create(yctx, yctx->display_width, yctx->display_height);
yutani_window_move(yctx, main_window, 0, 0);
yutani_set_stack(yctx, main_window, YUTANI_ZORDER_BOTTOM);
arg_ind++;
FILE * f = fopen("/var/run/.wallpaper.pid", "w");
fprintf(f, "%d\n", getpid());
fclose(f);
} else {
main_window = yutani_window_create(yctx, 800, 600);
yutani_window_move(yctx, main_window, yctx->display_width / 2 - main_window->width / 2, yctx->display_height / 2 - main_window->height / 2);
}
if (arg_ind < argc) {
chdir(argv[arg_ind]);
}
ctx = init_graphics_yutani_double_buffer(main_window);
struct decor_bounds bounds;
_decor_get_bounds(main_window, &bounds);
set_title(NULL);
menu_bar.entries = menu_entries;
menu_bar.redraw_callback = redraw_window;
menu_bar.set = menu_set_create();
struct MenuList * m = menu_create(); /* File */
menu_insert(m, menu_create_normal("exit",NULL,"Exit", _menu_action_exit));
menu_set_insert(menu_bar.set, "file", m);
m = menu_create();
menu_insert(m, menu_create_normal(NULL,NULL,"Copy",_menu_action_copy));
menu_insert(m, menu_create_normal(NULL,NULL,"Paste",_menu_action_paste));
menu_insert(m, menu_create_separator());
menu_insert(m, menu_create_normal(NULL,NULL,"Select all",_menu_action_select_all));
menu_set_insert(menu_bar.set, "edit", m);
m = menu_create();
menu_insert(m, menu_create_normal("refresh",NULL,"Refresh", _menu_action_refresh));
menu_insert(m, menu_create_separator());
menu_insert(m, menu_create_normal(NULL,NULL,"Show Hidden Files", _menu_action_toggle_hidden));
menu_set_insert(menu_bar.set, "view", m);
m = menu_create(); /* Go */
/* TODO implement input dialog for Path... */
#if 0
menu_insert(m, menu_create_normal("open",NULL,"Path...", _menu_action_input_path));
menu_insert(m, menu_create_separator());
#endif
menu_insert(m, menu_create_normal("home",getenv("HOME"),"Home",_menu_action_navigate));
menu_insert(m, menu_create_normal(NULL,"/","File System",_menu_action_navigate));
menu_insert(m, menu_create_normal("up",NULL,"Up",_menu_action_up));
menu_set_insert(menu_bar.set, "go", m);
m = menu_create();
menu_insert(m, menu_create_normal("help",NULL,"Contents",_menu_action_help));
menu_insert(m, menu_create_separator());
menu_insert(m, menu_create_normal("star",NULL,"About " APPLICATION_TITLE,_menu_action_about));
menu_set_insert(menu_bar.set, "help", m);
available_height = ctx->height - menu_bar_height - bounds.height;
context_menu = menu_create(); /* Right-click menu */
menu_insert(context_menu, menu_create_normal(NULL,NULL,"Open",_menu_action_open));
menu_insert(context_menu, menu_create_normal(NULL,NULL,"Edit in Bim",_menu_action_edit));
menu_insert(context_menu, menu_create_separator());
menu_insert(context_menu, menu_create_normal(NULL,NULL,"Copy",_menu_action_copy));
menu_insert(context_menu, menu_create_normal(NULL,NULL,"Paste",_menu_action_paste));
menu_insert(context_menu, menu_create_separator());
if (!is_desktop_background) {
menu_insert(context_menu, menu_create_normal("up",NULL,"Up",_menu_action_up));
}
menu_insert(context_menu, menu_create_normal("refresh",NULL,"Refresh",_menu_action_refresh));
menu_insert(context_menu, menu_create_normal("utilities-terminal","terminal","Open Terminal",launch_application_menu));
history_back = list_create();
history_forward = list_create();
/* Load the current working directory */
char tmp[1024];
getcwd(tmp, 1024);
load_directory(tmp, 1);
/* Draw files */
reinitialize_contents();
redraw_window();
while (application_running) {
waitpid(-1, NULL, WNOHANG);
yutani_msg_t * m = yutani_poll(yctx);
while (m) {
if (menu_process_event(yctx, m)) {
redraw_window();
}
switch (m->type) {
case YUTANI_MSG_WELCOME:
if (is_desktop_background) {
yutani_window_resize_offer(yctx, main_window, yctx->display_width, yctx->display_height);
}
break;
case YUTANI_MSG_KEY_EVENT:
{
struct yutani_msg_key_event * ke = (void*)m->data;
modifiers = ke->event.modifiers;
if (!is_desktop_background) {
if (ke->event.action == KEY_ACTION_DOWN && ke->event.keycode == 'q') {
_menu_action_exit(NULL);
}
}
}
break;
case YUTANI_MSG_WINDOW_FOCUS_CHANGE:
{
struct yutani_msg_window_focus_change * wf = (void*)m->data;
yutani_window_t * win = hashmap_get(yctx->windows, (void*)wf->wid);
if (win == main_window) {
win->focused = wf->focused;
redraw_files();
redraw_window();
}
}
break;
case YUTANI_MSG_RESIZE_OFFER:
{
struct yutani_msg_window_resize * wr = (void*)m->data;
if (wr->wid == main_window->wid) {
resize_finish(wr->width, wr->height);
}
}
break;
case YUTANI_MSG_CLIPBOARD:
{
struct yutani_msg_clipboard * cb = (void *)m->data;
char * selection_text;
if (*cb->content == '\002') {
int size = atoi(&cb->content[2]);
FILE * clipboard = yutani_open_clipboard(yctx);
selection_text = malloc(size + 1);
fread(selection_text, 1, size, clipboard);
selection_text[size] = '\0';
fclose(clipboard);
} else {
selection_text = malloc(cb->size+1);
memcpy(selection_text, cb->content, cb->size);
selection_text[cb->size] = '\0';
}
handle_clipboard(selection_text);
free(selection_text);
}
break;
case YUTANI_MSG_WINDOW_MOUSE_EVENT:
{
struct yutani_msg_window_mouse_event * me = (void*)m->data;
yutani_window_t * win = hashmap_get(yctx->windows, (void*)me->wid);
struct decor_bounds bounds;
_decor_get_bounds(win, &bounds);
if (win == main_window) {
int result = decor_handle_event(yctx, m);
switch (result) {
case DECOR_CLOSE:
_menu_action_exit(NULL);
break;
case DECOR_RIGHT:
/* right click in decoration, show appropriate menu */
decor_show_default_menu(main_window, main_window->x + me->new_x, main_window->y + me->new_y);
break;
default:
/* Other actions */
break;
}
/* Menu bar */
menu_bar_mouse_event(yctx, main_window, &menu_bar, me, me->new_x, me->new_y);
if (menu_bar_height &&
me->new_y > (int)(bounds.top_height + menu_bar_height - 36) &&
me->new_y < (int)(bounds.top_height + menu_bar_height) &&
me->new_x > (int)(bounds.left_width) &&
me->new_x < (int)(main_window->width - bounds.right_width)) {
int x = me->new_x - bounds.left_width - 2;
if (x >= 0) {
int i = x / 34;
if (i < 4) {
if (me->command == YUTANI_MOUSE_EVENT_DOWN) {
_set_hilight(i, 2);
_down_button = i;
} else if (me->command == YUTANI_MOUSE_EVENT_RAISE || me->command == YUTANI_MOUSE_EVENT_CLICK) {
if (_down_button != -1 && _down_button == i) {
_handle_button_press(i);
_set_hilight(i, 1);
}
_down_button = -1;
} else {
if (!(me->buttons & YUTANI_MOUSE_BUTTON_LEFT)) {
_set_hilight(i, 1);
} else {
if (_down_button == i) {
_set_hilight(i, 2);
} else if (_down_button != -1) {
_set_hilight(_down_button, 3);
}
}
}
} else {
_set_hilight(-1,0);
}
}
} else {
if (_button_hover != -1) {
_button_hilights[_button_hover] = 3;
_button_hover = -1;
redraw_window(); /* Double redraw ??? */
}
}
if (me->new_y > (int)(bounds.top_height + menu_bar_height) &&
me->new_y < (int)(main_window->height - bounds.bottom_height) &&
me->new_x > (int)(bounds.left_width) &&
me->new_x < (int)(main_window->width - bounds.right_width) &&
me->command != YUTANI_MOUSE_EVENT_LEAVE) {
if (me->buttons & YUTANI_MOUSE_SCROLL_UP) {
/* Scroll up */
scroll_offset -= SCROLL_AMOUNT;
if (scroll_offset < 0) {
scroll_offset = 0;
}
redraw_window();
} else if (me->buttons & YUTANI_MOUSE_SCROLL_DOWN) {
if (available_height > contents->height) {
scroll_offset = 0;
} else {
scroll_offset += SCROLL_AMOUNT;
if (scroll_offset > contents->height - available_height) {
scroll_offset = contents->height - available_height;
}
}
redraw_window();
}
/* Get offset into contents */
int y_into = me->new_y - bounds.top_height - menu_bar_height + scroll_offset;
int x_into = me->new_x - bounds.left_width;
int offset = (y_into / FILE_HEIGHT) * FILE_PTR_WIDTH + x_into / FILE_WIDTH;
if (x_into > FILE_PTR_WIDTH * FILE_WIDTH) {
offset = -1;
}
if (offset != hilighted_offset) {
int old_offset = hilighted_offset;
hilighted_offset = offset;
if (old_offset != -1) {
clear_offset(old_offset);
struct File * f = get_file_at_offset(old_offset);
if (f) {
clear_offset(old_offset);
draw_file(f, old_offset);
}
}
struct File * f = get_file_at_offset(hilighted_offset);
if (f) {
clear_offset(hilighted_offset);
draw_file(f, hilighted_offset);
}
redraw_window();
}
if (me->command == YUTANI_MOUSE_EVENT_CLICK || _close_enough(me)) {
struct File * f = get_file_at_offset(hilighted_offset);
if (f) {
if (last_click_offset == hilighted_offset && precise_time_since(last_click) < 400) {
open_file(f);
last_click = 0;
} else {
last_click = precise_current_time();
last_click_offset = hilighted_offset;
toggle_selected(hilighted_offset, modifiers);
}
} else {
if (!(modifiers & KEY_MOD_LEFT_CTRL)) {
for (int i = 0; i < file_pointers_len; ++i) {
if (file_pointers[i]->selected) {
file_pointers[i]->selected = 0;
clear_offset(i);
draw_file(file_pointers[i], i);
}
}
redraw_window();
}
}
} else if (me->buttons & YUTANI_MOUSE_BUTTON_RIGHT) {
if (!context_menu->window) {
struct File * f = get_file_at_offset(hilighted_offset);
if (f && !f->selected) {
toggle_selected(hilighted_offset, modifiers);
}
menu_show(context_menu, main_window->ctx);
yutani_window_move(main_window->ctx, context_menu->window, me->new_x + main_window->x, me->new_y + main_window->y);
}
}
} else {
int old_offset = hilighted_offset;
hilighted_offset = -1;
if (old_offset != -1) {
clear_offset(old_offset);
struct File * f = get_file_at_offset(old_offset);
if (f) {
clear_offset(old_offset);
draw_file(f, old_offset);
}
redraw_window();
}
}
}
}
break;
case YUTANI_MSG_WINDOW_CLOSE:
case YUTANI_MSG_SESSION_END:
_menu_action_exit(NULL);
break;
default:
break;
}
free(m);
m = yutani_poll_async(yctx);
}
}
}
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