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5b75b2c93a
bemenu/lib/menu.c
Peter Hofmann 5b75b2c93a Fix fallback to xclip 
popen() returns NULL if the underlying fork() or pipe() fails, not if
the called program didn't run properly. The old code didn't actually
fall back to xclip on X11, it was never called.

To fix this, inspect the exit code of the programs that we run. We use
the output of the first program that exited cleanly.

CC #363.
2023-11-21 13:36:53 +09:00

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#include "internal.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <assert.h>
#include "vim.h"
/**
* Default font.
*/
static const char *default_font = "monospace 10";
/**
* Default hexadecimal colors.
*/
static const char *default_colors[BM_COLOR_LAST] = {
"#121212FF", // BM_COLOR_TITLE_BG
"#D81860FF", // BM_COLOR_TITLE_FG
"#121212FF", // BM_COLOR_FILTER_BG
"#CACACAFF", // BM_COLOR_FILTER_FG
"#121212FF", // BM_COLOR_CURSOR_BG
"#CACACAFF", // BM_COLOR_CURSOR_FG
"#121212FF", // BM_COLOR_ITEM_BG
"#CACACAFF", // BM_COLOR_ITEM_FG
"#121212FF", // BM_COLOR_HIGHLIGHTED_BG
"#D81860FF", // BM_COLOR_HIGHLIGHTED_FG
"#D81860FF", // BM_COLOR_FEEDBACK_BG
"#121212FF", // BM_COLOR_FEEDBACK_FG
"#121212FF", // BM_COLOR_SELECTED_BG
"#D81860FF", // BM_COLOR_SELECTED_FG
"#121212FF", // BM_COLOR_ALTERNATE_BG
"#CACACAFF", // BM_COLOR_ALTERNATE_FG
"#121212FF", // BM_COLOR_SCROLLBAR_BG
"#D81860FF", // BM_COLOR_SCROLLBAR_FG
"#D81860FF", // BM_COLOR_BORDER
};
/**
* Filter function map.
*/
static struct bm_item** (*filter_func[BM_FILTER_MODE_LAST])(struct bm_menu *menu, bool addition, uint32_t *out_nmemb) = {
bm_filter_dmenu, /* BM_FILTER_DMENU */
bm_filter_dmenu_case_insensitive /* BM_FILTER_DMENU_CASE_INSENSITIVE */
};
struct bm_menu*
bm_menu_new(const char *renderer)
{
struct bm_menu *menu;
if (!(menu = calloc(1, sizeof(struct bm_menu))))
return NULL;
menu->dirty = true;
menu->key_binding = BM_KEY_BINDING_DEFAULT;
menu->vim_mode = 'i';
menu->vim_last_key = 0;
uint32_t count;
const struct bm_renderer **renderers = bm_get_renderers(&count);
const char *name = secure_getenv("BEMENU_BACKEND");
name = (name && strlen(name) > 0 ? name : NULL);
for (uint32_t i = 0; i < count; ++i) {
if (!name && !renderer && renderers[i]->api.priorty != BM_PRIO_GUI)
continue;
if ((renderer && strcmp(renderer, renderers[i]->name)) || (name && strcmp(name, renderers[i]->name)))
continue;
if (renderers[i]->api.priorty == BM_PRIO_TERMINAL) {
/**
* Some sanity checks that we are in terminal.
* These however are not reliable, thus we don't auto-detect terminal based renderers.
* These will be only used when explicitly requested.
*
* Launching terminal based menu instance at background is not a good idea.
*/
const char *term = getenv("TERM");
if (!term || !strlen(term) || getppid() == 1)
continue;
}
if (bm_renderer_activate((struct bm_renderer*)renderers[i], menu))
break;
}
if (!menu->renderer)
goto fail;
if (!bm_menu_set_font(menu, NULL))
goto fail;
for (uint32_t i = 0; i < BM_COLOR_LAST; ++i) {
if (!bm_menu_set_color(menu, i, NULL))
goto fail;
}
if (!(menu->filter_item = bm_item_new(NULL)))
goto fail;
return menu;
fail:
bm_menu_free(menu);
return NULL;
}
void
bm_menu_free(struct bm_menu *menu)
{
assert(menu);
if (menu->renderer && menu->renderer->api.destructor)
menu->renderer->api.destructor(menu);
free(menu->title);
free(menu->filter);
free(menu->old_filter);
free(menu->font.name);
free(menu->monitor_name);
for (uint32_t i = 0; i < BM_COLOR_LAST; ++i)
free(menu->colors[i].hex);
bm_menu_free_items(menu);
free(menu);
}
void
bm_menu_free_items(struct bm_menu *menu)
{
assert(menu);
list_free_list(&menu->selection);
list_free_list(&menu->filtered);
list_free_items(&menu->items, (list_free_fun)bm_item_free);
if (menu->filter_item)
free(menu->filter_item);
}
const struct bm_renderer*
bm_menu_get_renderer(struct bm_menu *menu)
{
assert(menu);
return menu->renderer;
}
void
bm_menu_set_userdata(struct bm_menu *menu, void *userdata)
{
assert(menu);
menu->userdata = userdata;
}
void*
bm_menu_get_userdata(struct bm_menu *menu)
{
assert(menu);
return menu->userdata;
}
void
bm_menu_set_prefix(struct bm_menu *menu, const char *prefix)
{
assert(menu);
free(menu->prefix);
menu->prefix = (prefix && strlen(prefix) > 0 ? bm_strdup(prefix) : NULL);
}
const char*
bm_menu_get_prefix(struct bm_menu *menu)
{
assert(menu);
return menu->prefix;
}
void
bm_menu_set_filter(struct bm_menu *menu, const char *filter)
{
assert(menu);
if (strcmp(menu->filter ? menu->filter : "", filter ? filter : ""))
menu->dirty = true;
free(menu->filter);
menu->filter_size = (filter ? strlen(filter) : 0);
menu->filter = (menu->filter_size > 0 ? bm_strdup(filter) : NULL);
menu->curses_cursor = (menu->filter ? bm_utf8_string_screen_width(menu->filter) : 0);
menu->dirty |= (menu->cursor != menu->filter_size);
menu->cursor = menu->filter_size;
}
const char*
bm_menu_get_filter(struct bm_menu *menu)
{
assert(menu);
return menu->filter;
}
void
bm_menu_set_filter_mode(struct bm_menu *menu, enum bm_filter_mode mode)
{
assert(menu);
menu->filter_mode = (mode >= BM_FILTER_MODE_LAST ? BM_FILTER_MODE_DMENU : mode);
}
enum bm_filter_mode
bm_menu_get_filter_mode(const struct bm_menu *menu)
{
assert(menu);
return menu->filter_mode;
}
void
bm_menu_set_lines(struct bm_menu *menu, uint32_t lines)
{
assert(menu);
menu->lines = lines;
}
uint32_t
bm_menu_get_lines(struct bm_menu *menu)
{
assert(menu);
return menu->lines;
}
void
bm_menu_set_wrap(struct bm_menu *menu, bool wrap)
{
assert(menu);
menu->wrap = wrap;
}
bool
bm_menu_get_wrap(const struct bm_menu *menu)
{
assert(menu);
return menu->wrap;
}
bool
bm_menu_set_title(struct bm_menu *menu, const char *title)
{
assert(menu);
char *copy = NULL;
if (title && !(copy = bm_strdup(title)))
return false;
free(menu->title);
menu->title = copy;
return true;
}
const char*
bm_menu_get_title(const struct bm_menu *menu)
{
assert(menu);
return menu->title;
}
bool
bm_menu_set_font(struct bm_menu *menu, const char *font)
{
assert(menu);
const char *nfont = (font ? font : default_font);
char *copy = NULL;
if (!(copy = bm_strdup(nfont)))
return false;
free(menu->font.name);
menu->font.name = copy;
return true;
}
const char*
bm_menu_get_font(const struct bm_menu *menu)
{
assert(menu);
return menu->font.name;
}
void
bm_menu_set_line_height(struct bm_menu *menu, uint32_t line_height)
{
assert(menu);
menu->line_height = line_height;
}
uint32_t
bm_menu_get_line_height(struct bm_menu *menu)
{
assert(menu);
return menu->line_height;
}
void
bm_menu_set_cursor_height(struct bm_menu *menu, uint32_t cursor_height)
{
assert(menu);
menu->cursor_height = cursor_height;
}
uint32_t
bm_menu_get_cursor_height(struct bm_menu *menu)
{
assert(menu);
return menu->cursor_height;
}
void
bm_menu_set_cursor_width(struct bm_menu *menu, uint32_t cursor_width)
{
assert(menu);
menu->cursor_width = cursor_width;
}
uint32_t
bm_menu_get_cursor_width(struct bm_menu *menu)
{
assert(menu);
return menu->cursor_width;
}
void
bm_menu_set_hpadding(struct bm_menu *menu, uint32_t hpadding)
{
assert(menu);
menu->hpadding = hpadding;
}
uint32_t
bm_menu_get_hpadding(struct bm_menu *menu)
{
assert(menu);
return menu->hpadding;
}
void
bm_menu_set_border_size(struct bm_menu* menu, uint32_t border_size)
{
assert(menu);
menu->border_size = border_size;
}
uint32_t
bm_menu_get_border_size(struct bm_menu* menu)
{
assert(menu);
return menu->border_size;
}
void
bm_menu_set_border_radius(struct bm_menu* menu, uint32_t border_radius)
{
assert(menu);
menu->border_radius = border_radius;
}
uint32_t
bm_menu_get_border_radius(struct bm_menu* menu)
{
assert(menu);
return menu->border_radius;
}
uint32_t
bm_menu_get_height(struct bm_menu *menu)
{
assert(menu);
uint32_t height = 0;
if (menu->renderer->api.get_height) {
height = menu->renderer->api.get_height(menu);
}
return height;
}
uint32_t
bm_menu_get_width(struct bm_menu *menu)
{
assert(menu);
uint32_t width = 0;
if (menu->renderer->api.get_width) {
width = menu->renderer->api.get_width(menu);
}
return width;
}
bool
bm_menu_set_color(struct bm_menu *menu, enum bm_color color, const char *hex)
{
assert(menu);
const char *nhex = (hex ? hex : default_colors[color]);
unsigned int r, g, b, a = 255;
int matched = sscanf(nhex, "#%2x%2x%2x%2x", &r, &b, &g, &a);
if (matched != 3 && matched != 4)
return false;
char *copy = NULL;
if (!(copy = bm_strdup(nhex)))
return false;
free(menu->colors[color].hex);
menu->colors[color].hex = copy;
menu->colors[color].r = r;
menu->colors[color].g = g;
menu->colors[color].b = b;
menu->colors[color].a = a;
return true;
}
const
char* bm_menu_get_color(const struct bm_menu *menu, enum bm_color color)
{
assert(menu);
return menu->colors[color].hex;
}
void
bm_menu_set_fixed_height(struct bm_menu *menu, bool mode)
{
menu->fixed_height = mode;
}
bool
bm_menu_get_fixed_height(struct bm_menu *menu)
{
return menu->fixed_height;
}
void
bm_menu_set_scrollbar(struct bm_menu *menu, enum bm_scrollbar_mode mode)
{
menu->scrollbar = (mode == BM_SCROLLBAR_LAST ? BM_SCROLLBAR_NONE : mode);
}
enum bm_scrollbar_mode
bm_menu_get_scrollbar(struct bm_menu *menu)
{
return menu->scrollbar;
}
void
bm_menu_set_vim_esc_exits(struct bm_menu *menu, bool mode)
{
menu->vim_esc_exits = mode;
}
bool
bm_menu_get_vim_esc_exits(struct bm_menu *menu)
{
return menu->vim_esc_exits;
}
void
bm_menu_set_counter(struct bm_menu *menu, bool mode)
{
menu->counter = mode;
}
bool
bm_menu_get_counter(struct bm_menu *menu)
{
return menu->counter;
}
void
bm_menu_set_align(struct bm_menu *menu, enum bm_align align)
{
assert(menu);
if(menu->align == align)
return;
menu->align = align;
if (menu->renderer->api.set_align)
menu->renderer->api.set_align(menu, align);
}
enum bm_align
bm_menu_get_align(struct bm_menu *menu)
{
assert(menu);
return menu->align;
}
void
bm_menu_set_width(struct bm_menu *menu, uint32_t margin, float factor)
{
assert(menu);
if(menu->hmargin_size == margin && menu->width_factor == factor)
return;
menu->hmargin_size = margin;
menu->width_factor = factor;
if(menu->renderer->api.set_width)
menu->renderer->api.set_width(menu, margin, factor);
}
uint32_t
bm_menu_get_hmargin_size(struct bm_menu *menu)
{
assert(menu);
return menu->hmargin_size;
}
float
bm_menu_get_width_factor(struct bm_menu *menu)
{
assert(menu);
return menu->width_factor;
}
void
bm_menu_set_monitor(struct bm_menu *menu, int32_t monitor)
{
assert(menu);
if (menu->monitor == monitor)
return;
menu->monitor = monitor;
if (menu->renderer->api.set_monitor)
menu->renderer->api.set_monitor(menu, monitor);
}
void
bm_menu_set_monitor_name(struct bm_menu *menu, char *monitor_name)
{
assert(menu);
if (!monitor_name)
return;
if (menu->monitor_name && !strcmp(menu->monitor_name, monitor_name))
return;
menu->monitor_name = bm_strdup(monitor_name);
if (menu->renderer->api.set_monitor_name)
menu->renderer->api.set_monitor_name(menu, monitor_name);
}
uint32_t
bm_menu_get_monitor(struct bm_menu *menu)
{
assert(menu);
return menu->monitor;
}
void
bm_menu_grab_keyboard(struct bm_menu *menu, bool grab)
{
assert(menu);
if (menu->grabbed == grab)
return;
menu->grabbed = grab;
if (menu->renderer->api.grab_keyboard)
menu->renderer->api.grab_keyboard(menu, grab);
}
bool
bm_menu_is_keyboard_grabbed(struct bm_menu *menu)
{
return menu->grabbed;
}
void
bm_menu_set_panel_overlap(struct bm_menu *menu, bool overlap)
{
assert(menu);
if (menu->overlap == overlap)
return;
menu->overlap = overlap;
if (menu->renderer->api.set_overlap)
menu->renderer->api.set_overlap(menu, overlap);
}
void
bm_menu_set_spacing(struct bm_menu *menu, bool spacing)
{
assert(menu);
if (menu->spacing == spacing)
return;
menu->spacing = spacing;
}
void
bm_menu_set_password(struct bm_menu *menu, enum bm_password_mode mode)
{
assert(menu);
if (menu->password == mode)
return;
menu->password = mode;
}
enum bm_password_mode
bm_menu_get_password(struct bm_menu *menu)
{
assert(menu);
return menu->password;
}
bool
bm_menu_add_item_at(struct bm_menu *menu, struct bm_item *item, uint32_t index)
{
assert(menu);
return list_add_item_at(&menu->items, item, index);
}
bool
bm_menu_add_item(struct bm_menu *menu, struct bm_item *item)
{
return list_add_item(&menu->items, item);
}
bool
bm_menu_remove_item_at(struct bm_menu *menu, uint32_t index)
{
assert(menu);
if (!menu->items.items || menu->items.count <= index)
return 0;
struct bm_item *item = ((struct bm_item**)menu->items.items)[index];
bool ret = list_remove_item_at(&menu->items, index);
if (ret) {
list_remove_item(&menu->selection, item);
list_remove_item(&menu->filtered, item);
}
return ret;
}
bool
bm_menu_remove_item(struct bm_menu *menu, struct bm_item *item)
{
assert(menu);
bool ret = list_remove_item(&menu->items, item);
if (ret) {
list_remove_item(&menu->selection, item);
list_remove_item(&menu->filtered, item);
}
return ret;
}
bool
bm_menu_set_highlighted_index(struct bm_menu *menu, uint32_t index)
{
assert(menu);
uint32_t count;
bm_menu_get_filtered_items(menu, &count);
if (count <= index)
index = (count > 0 ? count - 1 : 0);
if (menu->index != index)
menu->dirty = true;
return (menu->index = index);
}
bool
bm_menu_set_highlighted_item(struct bm_menu *menu, struct bm_item *item)
{
assert(menu);
uint32_t i, count;
struct bm_item **items = bm_menu_get_filtered_items(menu, &count);
for (i = 0; i < count && items[i] != item; ++i);
if (count <= i)
return 0;
return (bm_menu_set_highlighted_index(menu, i));
}
struct bm_item*
bm_menu_get_highlighted_item(const struct bm_menu *menu)
{
assert(menu);
uint32_t count;
struct bm_item **items = bm_menu_get_filtered_items(menu, &count);
if (!items || count <= menu->index)
return NULL;
return items[menu->index];
}
bool
bm_menu_set_selected_items(struct bm_menu *menu, struct bm_item **items, uint32_t nmemb)
{
assert(menu);
struct bm_item **new_items;
if (!(new_items = calloc(sizeof(struct bm_item*), nmemb)))
return 0;
memcpy(new_items, items, sizeof(struct bm_item*) * nmemb);
return list_set_items_no_copy(&menu->selection, new_items, nmemb);
}
void
bm_menu_set_key_binding(struct bm_menu *menu, enum bm_key_binding key_binding){
menu->key_binding = key_binding;
}
struct bm_item**
bm_menu_get_selected_items(const struct bm_menu *menu, uint32_t *out_nmemb)
{
assert(menu);
return list_get_items(&menu->selection, out_nmemb);
}
bool
bm_menu_set_items(struct bm_menu *menu, const struct bm_item **items, uint32_t nmemb)
{
assert(menu);
bool ret = list_set_items(&menu->items, items, nmemb, (list_free_fun)bm_item_free);
if (ret) {
list_free_list(&menu->selection);
list_free_list(&menu->filtered);
}
return ret;
}
struct bm_item**
bm_menu_get_items(const struct bm_menu *menu, uint32_t *out_nmemb)
{
assert(menu);
return list_get_items(&menu->items, out_nmemb);
}
struct bm_item**
bm_menu_get_filtered_items(const struct bm_menu *menu, uint32_t *out_nmemb)
{
assert(menu);
if (menu->filter && strlen(menu->filter))
return list_get_items(&menu->filtered, out_nmemb);
return list_get_items(&menu->items, out_nmemb);
}
bool
bm_menu_render(struct bm_menu *menu)
{
assert(menu);
if (menu->renderer->api.render)
return menu->renderer->api.render(menu);
return true;
}
void
bm_menu_filter(struct bm_menu *menu)
{
assert(menu);
char addition = 0;
size_t len = (menu->filter ? strlen(menu->filter) : 0);
if (!len || !menu->items.items || menu->items.count <= 0) {
list_free_list(&menu->filtered);
free(menu->old_filter);
menu->old_filter = NULL;
return;
}
if (menu->old_filter) {
size_t oldLen = strlen(menu->old_filter);
addition = (oldLen < len && !memcmp(menu->old_filter, menu->filter, oldLen));
}
if (menu->old_filter && addition && menu->filtered.count <= 0)
return;
if (menu->old_filter && !strcmp(menu->filter, menu->old_filter))
return;
uint32_t count;
struct bm_item **filtered = filter_func[menu->filter_mode](menu, addition, &count);
list_set_items_no_copy(&menu->filtered, filtered, count);
bm_menu_set_highlighted_index(menu, 0);
free(menu->old_filter);
menu->old_filter = bm_strdup(menu->filter);
}
enum bm_key
bm_menu_poll_key(struct bm_menu *menu, uint32_t *out_unicode)
{
assert(menu && out_unicode);
*out_unicode = 0;
enum bm_key key = BM_KEY_NONE;
if (menu->renderer->api.poll_key)
key = menu->renderer->api.poll_key(menu, out_unicode);
return key;
}
struct bm_pointer
bm_menu_poll_pointer(struct bm_menu *menu)
{
assert(menu);
struct bm_pointer pointer = {0};
if (menu->renderer->api.poll_pointer)
pointer = menu->renderer->api.poll_pointer(menu);
return pointer;
}
struct bm_touch
bm_menu_poll_touch(struct bm_menu *menu)
{
assert(menu);
struct bm_touch touch = {0};
if (menu->renderer->api.poll_touch)
touch = menu->renderer->api.poll_touch(menu);
return touch;
}
void
bm_menu_release_touch(struct bm_menu *menu)
{
assert(menu);
if (menu->renderer->api.release_touch)
menu->renderer->api.release_touch(menu);
}
static void
menu_next(struct bm_menu *menu, uint32_t count, bool wrap)
{
if (menu->index < count - 1) {
bm_menu_set_highlighted_index(menu, menu->index + 1);
} else if (wrap) {
bm_menu_set_highlighted_index(menu, 0);
}
}
static void
menu_prev(struct bm_menu *menu, uint32_t count, bool wrap)
{
if (menu->index > 0) {
bm_menu_set_highlighted_index(menu, menu->index - 1);
} else if (wrap) {
bm_menu_set_highlighted_index(menu, count - 1);
}
}
static void
menu_point_select(struct bm_menu *menu, uint32_t posx, uint32_t posy, uint32_t displayed)
{
(void) posx;
if (displayed == 0) {
return;
}
uint32_t line_height = bm_menu_get_height(menu) / displayed;
if (line_height == 0) {
return;
}
uint32_t selected_line = posy / line_height;
assert(menu->lines != 0);
uint16_t current_page_index = menu->index / menu->lines;
if (0 == selected_line) { // Mouse over title bar
bm_menu_set_highlighted_index(menu, current_page_index * menu->lines);
return;
}
if (selected_line >= displayed) { // This might be useless
return;
}
bm_menu_set_highlighted_index(menu, current_page_index * menu->lines + (selected_line - 1));
}
static void
menu_scroll_down(struct bm_menu *menu, uint16_t count)
{
assert(menu->lines != 0);
if (menu->index / menu->lines != count / menu->lines) { // not last page
bm_menu_set_highlighted_index(menu, ((menu->index / menu->lines) + 1) * menu->lines);
}
}
static void
menu_scroll_up(struct bm_menu *menu, uint16_t count)
{
(void) count;
assert(menu->lines != 0);
if (menu->index / menu->lines) { // not first page
bm_menu_set_highlighted_index(menu, ((menu->index / menu->lines) - 1) * menu->lines + menu->lines - 1);
}
}
static void
menu_scroll_first(struct bm_menu *menu, uint16_t count)
{
(void) count;
bm_menu_set_highlighted_index(menu, 0);
}
static void
menu_scroll_last(struct bm_menu *menu, uint16_t count)
{
bm_menu_set_highlighted_index(menu, count - 1);
}
void
bm_menu_add_event_feedback(struct bm_menu *menu, uint32_t event_feedback)
{
menu->event_feedback |= event_feedback;
}
void
bm_menu_remove_event_feedback(struct bm_menu *menu, uint32_t event_feedback)
{
menu->event_feedback &= ~event_feedback;
}
void
bm_menu_set_event_feedback(struct bm_menu *menu, uint32_t event_feedback)
{
if (menu->event_feedback != event_feedback) {
menu->dirty = true;
}
menu->event_feedback = event_feedback;
}
enum bm_run_result
bm_menu_run_with_key(struct bm_menu *menu, enum bm_key key, uint32_t unicode)
{
assert(menu);
uint32_t count;
bm_menu_get_filtered_items(menu, &count);
uint32_t displayed = 0;
if (menu->renderer->api.get_displayed_count)
displayed = menu->renderer->api.get_displayed_count(menu);
if (!displayed)
displayed = count;
if (key != BM_KEY_NONE)
menu->dirty = true;
if(menu->key_binding == BM_KEY_BINDING_VIM){
enum bm_vim_code code = bm_vim_key_press(menu, key, unicode, count, displayed);
switch(code){
case BM_VIM_CONSUME:
return BM_RUN_RESULT_RUNNING;
case BM_VIM_EXIT:
list_free_list(&menu->selection);
return BM_RUN_RESULT_CANCEL;
case BM_VIM_IGNORE:
break;
}
}
switch (key) {
case BM_KEY_LEFT:
if (menu->filter) {
const uint32_t old_cursor = menu->cursor;
menu->cursor -= bm_utf8_rune_prev(menu->filter, menu->cursor);
menu->curses_cursor -= bm_utf8_rune_width(menu->filter + menu->cursor, old_cursor - menu->cursor);
}
break;
case BM_KEY_RIGHT:
if (menu->filter) {
const uint32_t old_cursor = menu->cursor;
menu->cursor += bm_utf8_rune_next(menu->filter, menu->cursor);
menu->curses_cursor += bm_utf8_rune_width(menu->filter + old_cursor, menu->cursor - old_cursor);
}
break;
case BM_KEY_HOME:
menu->curses_cursor = menu->cursor = 0;
break;
case BM_KEY_END:
menu->cursor = (menu->filter ? strlen(menu->filter) : 0);
menu->curses_cursor = (menu->filter ? bm_utf8_string_screen_width(menu->filter) : 0);
break;
case BM_KEY_UP:
menu_prev(menu, count, menu->wrap);
break;
case BM_KEY_DOWN:
menu_next(menu, count, menu->wrap);
break;
case BM_KEY_PAGE_UP:
bm_menu_set_highlighted_index(menu, (menu->index < displayed ? 0 : menu->index - (displayed - 1)));
break;
case BM_KEY_PAGE_DOWN:
bm_menu_set_highlighted_index(menu, (menu->index + displayed >= count ? count - 1 : menu->index + (displayed - 1)));
break;
case BM_KEY_SHIFT_PAGE_UP:
bm_menu_set_highlighted_index(menu, 0);
break;
case BM_KEY_SHIFT_PAGE_DOWN:
bm_menu_set_highlighted_index(menu, count - 1);
break;
case BM_KEY_BACKSPACE:
if (menu->filter) {
size_t width;
menu->cursor -= bm_utf8_rune_remove(menu->filter, menu->cursor, &width);
menu->curses_cursor -= width;
}
break;
case BM_KEY_DELETE:
if (menu->filter) {
size_t width = bm_utf8_rune_next(menu->filter, menu->cursor);
if (width)
bm_utf8_rune_remove(menu->filter, menu->cursor + width, NULL);
}
break;
case BM_KEY_LINE_DELETE_LEFT:
if (menu->filter) {
while (menu->cursor > 0) {
size_t width;
menu->cursor -= bm_utf8_rune_remove(menu->filter, menu->cursor, &width);
menu->curses_cursor -= width;
}
}
break;
case BM_KEY_LINE_DELETE_RIGHT:
if (menu->filter)
menu->filter[menu->cursor] = 0;
break;
case BM_KEY_WORD_DELETE:
if (menu->filter) {
while (menu->cursor < strlen(menu->filter) && !isspace(menu->filter[menu->cursor])) {
uint32_t oldCursor = menu->cursor;
menu->cursor += bm_utf8_rune_next(menu->filter, menu->cursor);
menu->curses_cursor += bm_utf8_rune_width(menu->filter + oldCursor, menu->cursor - oldCursor);
}
while (menu->cursor > 0 && isspace(menu->filter[menu->cursor - 1])) {
uint32_t oldCursor = menu->cursor;
menu->cursor -= bm_utf8_rune_prev(menu->filter, menu->cursor);
menu->curses_cursor -= bm_utf8_rune_width(menu->filter + menu->cursor, oldCursor - menu->cursor);
}
while (menu->cursor > 0 && !isspace(menu->filter[menu->cursor - 1])) {
size_t width;
menu->cursor -= bm_utf8_rune_remove(menu->filter, menu->cursor, &width);
menu->curses_cursor -= width;
}
}
break;
case BM_KEY_PASTE:
{
char *paster[] = {"wl-paste -t text/plain", "xclip -t text/plain -out"};
for (size_t paster_i = 0; paster_i < sizeof paster / sizeof paster[0]; paster_i++) {
FILE *clipboard = popen(paster[paster_i], "r");
if (clipboard == NULL) {
fprintf(stderr, "popen() for '%s' failed: ", paster[paster_i]);
perror(NULL);
continue;
}
char *line = NULL;
size_t len = 0;
ssize_t nread;
char *pasted_buf = NULL;
size_t pasted_len = 0;
/* Buffer all output first. If the child doesn't exit
* with 0, we won't use this output and assume that it
* was garbage. */
while ((nread = getline(&line, &len, clipboard)) != -1) {
pasted_buf = realloc(pasted_buf, pasted_len + (size_t)nread);
if (pasted_buf == NULL) {
fprintf(stderr, "realloc() while reading from paster '%s' failed: ", paster[paster_i]);
perror(NULL);
continue;
}
memmove(pasted_buf + pasted_len, line, (size_t)nread);
pasted_len += (size_t)nread;
}
free(line);
int wstatus = pclose(clipboard);
if (WIFEXITED(wstatus) && WEXITSTATUS(wstatus) == 0) {
for (size_t i = 0; i < pasted_len; i++) {
size_t width;
menu->cursor += bm_unicode_insert(&menu->filter, &menu->filter_size, menu->cursor, pasted_buf[i], &width);
menu->curses_cursor += width;
}
free(pasted_buf);
break;
} else if (wstatus == -1) {
fprintf(stderr, "Waiting for clipboard paste program '%s' failed: ", paster[paster_i]);
perror(NULL);
} else {
if (WIFEXITED(wstatus)) {
fprintf(stderr, "Clipboard paste program '%s' exited with %d, discarding\n", paster[paster_i], WEXITSTATUS(wstatus));
} else {
fprintf(stderr, "Clipboard paste program '%s' died abnormally, discarding\n", paster[paster_i]);
}
}
free(pasted_buf);
}
}
break;
case BM_KEY_UNICODE:
{
size_t width;
menu->cursor += bm_unicode_insert(&menu->filter, &menu->filter_size, menu->cursor, unicode, &width);
menu->curses_cursor += width;
}
break;
case BM_KEY_TAB:
{
menu_next(menu, count, true);
}
break;
case BM_KEY_SHIFT_TAB:
{
const char *text;
struct bm_item *highlighted = bm_menu_get_highlighted_item(menu);
if (highlighted && (text = bm_item_get_text(highlighted)))
bm_menu_set_filter(menu, text);
}
break;
case BM_KEY_CONTROL_RETURN:
case BM_KEY_RETURN:
case BM_KEY_CUSTOM_1:
case BM_KEY_CUSTOM_2:
case BM_KEY_CUSTOM_3:
case BM_KEY_CUSTOM_4:
case BM_KEY_CUSTOM_5:
case BM_KEY_CUSTOM_6:
case BM_KEY_CUSTOM_7:
case BM_KEY_CUSTOM_8:
case BM_KEY_CUSTOM_9:
case BM_KEY_CUSTOM_10:
{
struct bm_item *highlighted = bm_menu_get_highlighted_item(menu);
if (highlighted && !bm_menu_item_is_selected(menu, highlighted))
list_add_item(&menu->selection, highlighted);
}
break;
case BM_KEY_SHIFT_RETURN: /* this will return the filter as selected item below! */
case BM_KEY_ESCAPE: /* this will cancel however */
list_free_list(&menu->selection);
break;
default: break;
}
bm_menu_filter(menu);
switch (key) {
case BM_KEY_CUSTOM_1:
case BM_KEY_CUSTOM_2:
case BM_KEY_CUSTOM_3:
case BM_KEY_CUSTOM_4:
case BM_KEY_CUSTOM_5:
case BM_KEY_CUSTOM_6:
case BM_KEY_CUSTOM_7:
case BM_KEY_CUSTOM_8:
case BM_KEY_CUSTOM_9:
case BM_KEY_CUSTOM_10:
case BM_KEY_SHIFT_RETURN:
case BM_KEY_RETURN:
if (!bm_menu_get_selected_items(menu, NULL)) {
bm_item_set_text(menu->filter_item, menu->filter);
list_add_item(&menu->selection, menu->filter_item);
}
switch (key) {
case BM_KEY_CUSTOM_1: return BM_RUN_RESULT_CUSTOM_1;
case BM_KEY_CUSTOM_2: return BM_RUN_RESULT_CUSTOM_2;
case BM_KEY_CUSTOM_3: return BM_RUN_RESULT_CUSTOM_3;
case BM_KEY_CUSTOM_4: return BM_RUN_RESULT_CUSTOM_4;
case BM_KEY_CUSTOM_5: return BM_RUN_RESULT_CUSTOM_5;
case BM_KEY_CUSTOM_6: return BM_RUN_RESULT_CUSTOM_6;
case BM_KEY_CUSTOM_7: return BM_RUN_RESULT_CUSTOM_7;
case BM_KEY_CUSTOM_8: return BM_RUN_RESULT_CUSTOM_8;
case BM_KEY_CUSTOM_9: return BM_RUN_RESULT_CUSTOM_9;
case BM_KEY_CUSTOM_10: return BM_RUN_RESULT_CUSTOM_10;
default: break;
}
return BM_RUN_RESULT_SELECTED;
case BM_KEY_ESCAPE: return BM_RUN_RESULT_CANCEL;
default: break;
}
return BM_RUN_RESULT_RUNNING;
}
enum bm_run_result
bm_menu_run_with_pointer(struct bm_menu *menu, struct bm_pointer pointer)
{
uint32_t count;
bm_menu_get_filtered_items(menu, &count);
uint32_t displayed = 0;
if (menu->renderer->api.get_displayed_count)
displayed = menu->renderer->api.get_displayed_count(menu);
if (!displayed)
displayed = count;
if (!menu->lines) {
if (pointer.axes[BM_POINTER_AXIS_VERTICAL].valid) {
if (0 < pointer.axes[BM_POINTER_AXIS_VERTICAL].value) {
menu_next(menu, count, menu->wrap);
} else {
menu_prev(menu, count, menu->wrap);
}
}
if (pointer.event_mask & POINTER_EVENT_BUTTON && pointer.state == POINTER_STATE_RELEASED) {
switch (pointer.button) {
case BM_POINTER_KEY_PRIMARY:
{
struct bm_item *highlighted = bm_menu_get_highlighted_item(menu);
if (highlighted && !bm_menu_item_is_selected(menu, highlighted))
list_add_item(&menu->selection, highlighted);
}
return BM_RUN_RESULT_SELECTED;
}
}
return BM_RUN_RESULT_RUNNING;
}
if (pointer.axes[BM_POINTER_AXIS_VERTICAL].valid) {
if (0 < pointer.axes[BM_POINTER_AXIS_VERTICAL].value) {
menu_scroll_down(menu, count);
} else {
menu_scroll_up(menu, count);
}
}
if (pointer.event_mask & POINTER_EVENT_MOTION) {
menu_point_select(menu, pointer.pos_x, pointer.pos_y, displayed);
}
if (pointer.event_mask & POINTER_EVENT_BUTTON && pointer.state == POINTER_STATE_RELEASED) {
switch (pointer.button) {
case BM_POINTER_KEY_PRIMARY:
{
struct bm_item *highlighted = bm_menu_get_highlighted_item(menu);
if (highlighted && !bm_menu_item_is_selected(menu, highlighted))
list_add_item(&menu->selection, highlighted);
}
return BM_RUN_RESULT_SELECTED;
}
}
return BM_RUN_RESULT_RUNNING;
}
enum bm_run_result
bm_menu_run_with_touch(struct bm_menu *menu, struct bm_touch touch)
{
uint32_t count;
bm_menu_get_filtered_items(menu, &count);
uint32_t displayed = 0;
if (menu->renderer->api.get_displayed_count)
displayed = menu->renderer->api.get_displayed_count(menu);
if (!displayed)
displayed = count;
if (!menu->lines) {
// Not implemented yet
return BM_RUN_RESULT_RUNNING;
}
uint16_t count_down = 0;
for (size_t i = 0; i < 2; ++i) {
struct bm_touch_point point = touch.points[i];
if (point.event_mask & TOUCH_EVENT_DOWN) {
count_down += 1;
}
}
if (count_down == 2) {
int16_t scroll_count = 0;
int16_t scroll_directions[2];
int16_t distance_trigger = displayed * bm_menu_get_line_height(menu) / 4;
for (size_t i = 0; i < 2; ++i) {
struct bm_touch_point point = touch.points[i];
if (!(point.event_mask & TOUCH_EVENT_DOWN))
continue;
int32_t movement_y = point.pos_y - point.start_y;
if (abs(movement_y) > distance_trigger) {
scroll_directions[i] = movement_y / abs(movement_y);
scroll_count++;
}
}
int16_t scroll_direction_sum = scroll_directions[0] + scroll_directions[1];
if (2 == abs(scroll_direction_sum)) {
uint16_t current_page = menu->index / menu->lines;
if (scroll_direction_sum < 0 && current_page != count / menu->lines) { // not already the first page
menu_scroll_down(menu, count);
bm_menu_release_touch(menu);
} else if (scroll_direction_sum > 0 && current_page) { // not already the first page
menu_scroll_up(menu, count);
bm_menu_release_touch(menu);
}
}
}
if (count_down != 1)
return BM_RUN_RESULT_RUNNING;
for (size_t i = 0; i < 2; ++i) {
struct bm_touch_point point = touch.points[i];
if (!(point.event_mask & TOUCH_EVENT_DOWN))
continue;
menu_point_select(menu, point.pos_x, point.pos_y, displayed);
if (point.pos_y < (int32_t) (bm_menu_get_height(menu) / displayed)) {
if (point.pos_y < ((int32_t) (bm_menu_get_height(menu) / displayed)) - 50) {
if (point.event_mask & TOUCH_EVENT_UP) {
menu_scroll_first(menu, count);
bm_menu_set_event_feedback(menu, 0);
} else if (point.event_mask & TOUCH_EVENT_MOTION) {
bm_menu_set_event_feedback(menu, TOUCH_WILL_SCROLL_FIRST);
}
} else {
if (point.event_mask & TOUCH_EVENT_UP) {
menu_scroll_up(menu, count);
bm_menu_set_event_feedback(menu, 0);
} else if (point.event_mask & TOUCH_EVENT_MOTION) {
bm_menu_set_event_feedback(menu, TOUCH_WILL_SCROLL_UP);
}
}
} else if ((uint32_t) point.pos_y > bm_menu_get_height(menu)) {
if ((uint32_t) point.pos_y > bm_menu_get_height(menu) + 50) {
if (point.event_mask & TOUCH_EVENT_UP) {
menu_scroll_last(menu, count);
bm_menu_set_event_feedback(menu, 0);
} else if (point.event_mask & TOUCH_EVENT_MOTION) {
bm_menu_set_event_feedback(menu, TOUCH_WILL_SCROLL_LAST);
}
} else {
if (point.event_mask & TOUCH_EVENT_UP) {
menu_scroll_down(menu, count);
bm_menu_set_event_feedback(menu, 0);
} else if (point.event_mask & TOUCH_EVENT_MOTION) {
bm_menu_set_event_feedback(menu, TOUCH_WILL_SCROLL_DOWN);
}
}
} else {
if (point.pos_x > 0 && (uint32_t) point.pos_x < bm_menu_get_width(menu)) {
bm_menu_set_event_feedback(menu, 0);
if (point.event_mask & TOUCH_EVENT_UP) {
{
struct bm_item *highlighted = bm_menu_get_highlighted_item(menu);
if (highlighted && !bm_menu_item_is_selected(menu, highlighted))
list_add_item(&menu->selection, highlighted);
}
return BM_RUN_RESULT_SELECTED;
}
} else {
if (!(point.event_mask & TOUCH_EVENT_UP)) {
bm_menu_set_event_feedback(menu, TOUCH_WILL_CANCEL);
} else {
bm_menu_set_event_feedback(menu, 0);
}
}
}
}
return BM_RUN_RESULT_RUNNING;
}
enum bm_run_result
bm_menu_run_with_events(struct bm_menu *menu, enum bm_key key,
struct bm_pointer pointer, struct bm_touch touch, uint32_t unicode)
{
enum bm_run_result key_result = bm_menu_run_with_key(menu, key, unicode);
if (key_result != BM_RUN_RESULT_RUNNING) {
return key_result;
}
enum bm_run_result pointer_result = bm_menu_run_with_pointer(menu, pointer);
if (pointer_result != BM_RUN_RESULT_RUNNING) {
return pointer_result;
}
return bm_menu_run_with_touch(menu, touch);
}
/* vim: set ts=8 sw=4 tw=0 :*/
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