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bemenu/lib/menu.c
Jari Vetoniemi 8cddd28e19 menu: reversed page up / page down on up list mode
2024-07-19 13:12:27 +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_lines_mode(struct bm_menu *menu, enum bm_lines_mode mode)
{
assert(menu);
menu->lines_mode = mode;
}
enum bm_lines_mode
bm_menu_get_lines_mode(struct bm_menu *menu)
{
assert(menu);
return menu->lines_mode;
}
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, double border_size)
{
assert(menu);
menu->border_size = border_size;
}
double
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, double border_radius)
{
assert(menu);
menu->border_radius = border_radius;
}
double
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_y_offset(struct bm_menu *menu, int32_t y_offset)
{
assert(menu);
if(menu->y_offset == y_offset)
return;
menu->y_offset = y_offset;
if (menu->renderer->api.set_y_offset)
menu->renderer->api.set_y_offset(menu, y_offset);
}
int32_t
bm_menu_get_y_offset(struct bm_menu *menu)
{
assert(menu);
return menu->y_offset;
}
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(nmemb, sizeof(struct bm_item*))))
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->lines_mode == BM_LINES_UP ? menu_next(menu, count, menu->wrap) : menu_prev(menu, count, menu->wrap));
break;
case BM_KEY_DOWN:
(menu->lines_mode == BM_LINES_UP ? menu_prev(menu, count, menu->wrap) : menu_next(menu, count, menu->wrap));
break;
case BM_KEY_PAGE_UP:
if (menu->lines_mode == BM_LINES_UP) {
bm_menu_set_highlighted_index(menu, (menu->index + displayed >= count ? count - 1 : menu->index + (displayed - 1)));
} else {
bm_menu_set_highlighted_index(menu, (menu->index < displayed ? 0 : menu->index - (displayed - 1)));
}
break;
case BM_KEY_PAGE_DOWN:
if (menu->lines_mode == BM_LINES_UP) {
bm_menu_set_highlighted_index(menu, (menu->index < displayed ? 0 : menu->index - (displayed - 1)));
} else {
bm_menu_set_highlighted_index(menu, (menu->index + displayed >= count ? count - 1 : menu->index + (displayed - 1)));
}
break;
case BM_KEY_SHIFT_PAGE_UP:
if (menu->lines_mode == BM_LINES_UP) {
bm_menu_set_highlighted_index(menu, count - 1);
} else {
bm_menu_set_highlighted_index(menu, 0);
}
break;
case BM_KEY_SHIFT_PAGE_DOWN:
if (menu->lines_mode == BM_LINES_UP) {
bm_menu_set_highlighted_index(menu, 0);
} else {
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_PRIMARY:
case BM_KEY_PASTE_CLIPBOARD:
{
char *paster[2] = {NULL, NULL};
if (key == BM_KEY_PASTE_PRIMARY) {
paster[0] = "wl-paste -t text -p";
paster[1] = "xclip -t UTF8_STRING -out";
} else {
paster[0] = "wl-paste -t text";
paster[1] = "xclip -t UTF8_STRING -out -selection clipboard";
}
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_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);
}
}
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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