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/* SPDX-License-Identifier: GPL-3.0-or-later */
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/*
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* article_favor_display
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* - user interactive feature to display favorite articles
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*
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* Copyright (C) 2004-2025 Leaflet <leaflet@leafok.com>
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*/
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#include "article_favor_display.h"
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#include "article_view_log.h"
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#include "io.h"
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#include "log.h"
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#include "login.h"
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#include "screen.h"
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#include "str_process.h"
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#include "section_list.h"
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#include "section_list_display.h"
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#include "user_priv.h"
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#include <string.h>
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#include <time.h>
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#include <sys/param.h>
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enum select_cmd_t
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{
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EXIT_LIST = 0,
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LOCATE_ARTICLE,
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CHANGE_PAGE,
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SHOW_HELP,
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SWITCH_NAME,
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UNSET_FAVOR,
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};
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static int article_favor_draw_screen(int display_sname)
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{
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clearscr();
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show_top("[主题收藏]", BBS_name, "");
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moveto(2, 0);
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prints("返回[\033[1;32m←\033[0;37m,\033[1;32mESC\033[0;37m] 选择[\033[1;32m↑\033[0;37m,\033[1;32m↓\033[0;37m] "
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"定位[\033[1;32m→\033[0;37m,\033[1;32mENTER\033[0;37m] 移除[\033[1;32m-\033[0;37m\033[0;37m] "
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"%s[\033[1;32mn\033[0;37m] 帮助[\033[1;32mh\033[0;37m]\033[m",
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(display_sname ? "用户名" : "版块名称"));
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moveto(3, 0);
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if (display_sname)
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{
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prints("\033[44;37m \033[1;37m 编 号 版块名称 日 期 文章标题 \033[m");
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}
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else
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{
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prints("\033[44;37m \033[1;37m 编 号 发 布 者 日 期 文章标题 \033[m");
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}
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return 0;
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}
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static int article_favor_draw_items(int page_id, ARTICLE *p_articles[], char p_snames[][BBS_section_name_max_len + 1],
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int article_count, int display_sname)
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{
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char str_time[LINE_BUFFER_LEN];
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struct tm tm_sub;
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char title_f[BBS_article_title_max_len + 1];
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int title_f_len;
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int eol;
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int len;
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int i;
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char article_flag;
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int is_viewed;
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time_t tm_now;
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time(&tm_now);
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clrline(4, 23);
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for (i = 0; i < article_count; i++)
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{
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if (p_articles[i]->uid == BBS_priv.uid)
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{
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is_viewed = 1;
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}
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else
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{
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is_viewed = article_view_log_is_viewed(p_articles[i]->aid, &BBS_article_view_log);
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if (is_viewed < 0)
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{
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log_error("article_view_log_is_viewed(aid=%d) error\n", p_articles[i]->aid);
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is_viewed = 0;
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}
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}
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if (p_articles[i]->excerption)
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{
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article_flag = (is_viewed ? 'm' : 'M');
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}
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else if (p_articles[i]->lock && is_viewed)
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{
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article_flag = 'x';
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}
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else
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{
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article_flag = (is_viewed ? ' ' : 'N');
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}
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localtime_r(&p_articles[i]->sub_dt, &tm_sub);
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if (tm_now - p_articles[i]->sub_dt < 3600 * 24 * 365)
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{
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strftime(str_time, sizeof(str_time), "%b %e ", &tm_sub);
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}
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else
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{
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strftime(str_time, sizeof(str_time), "%m/%Y", &tm_sub);
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}
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strncpy(title_f, (p_articles[i]->tid == 0 ? "● " : ""), sizeof(title_f) - 1);
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title_f[sizeof(title_f) - 1] = '\0';
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strncat(title_f, (p_articles[i]->transship ? "[转载]" : ""), sizeof(title_f) - 1 - strnlen(title_f, sizeof(title_f)));
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strncat(title_f, p_articles[i]->title, sizeof(title_f) - 1 - strnlen(title_f, sizeof(title_f)));
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len = split_line(title_f, 59 - (display_sname ? BBS_section_name_max_len : BBS_username_max_len), &eol, &title_f_len, 1);
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if (title_f[len] != '\0')
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{
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title_f[len] = '\0';
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}
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moveto(4 + i, 1);
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prints(" %7d %c %s%*s %s %s",
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p_articles[i]->aid,
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article_flag,
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(display_sname ? p_snames[i] : p_articles[i]->username),
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(display_sname
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? BBS_section_name_max_len - str_length(p_snames[i], 1)
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: BBS_username_max_len - str_length(p_articles[i]->username, 1)),
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"",
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str_time,
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title_f);
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}
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return 0;
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}
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static enum select_cmd_t article_favor_select(int total_page, int item_count, int *p_page_id, int *p_selected_index)
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{
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int old_page_id = *p_page_id;
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int old_selected_index = *p_selected_index;
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int ch;
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if (item_count > 0 && *p_selected_index >= 0)
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{
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moveto(4 + *p_selected_index, 1);
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outc('>');
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iflush();
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}
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while (!SYS_server_exit)
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{
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ch = igetch(100);
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if (ch != KEY_NULL && ch != KEY_TIMEOUT)
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{
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BBS_last_access_tm = time(NULL);
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}
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switch (ch)
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{
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case KEY_NULL: // broken pipe
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log_error("KEY_NULL\n");
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case KEY_ESC:
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case KEY_LEFT:
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return EXIT_LIST; // exit list
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case KEY_TIMEOUT:
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if (time(NULL) - BBS_last_access_tm >= MAX_DELAY_TIME)
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{
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log_error("User input timeout\n");
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return EXIT_LIST; // exit list
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}
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continue;
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case 'n':
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return SWITCH_NAME;
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case '-':
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if (item_count > 0)
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{
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return UNSET_FAVOR;
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}
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break;
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case CR:
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case KEY_RIGHT:
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if (item_count > 0)
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{
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return LOCATE_ARTICLE;
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}
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break;
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case KEY_HOME:
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*p_page_id = 0;
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case 'P':
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case KEY_PGUP:
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*p_selected_index = 0;
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case 'k':
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case KEY_UP:
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if (*p_selected_index <= 0)
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{
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if (*p_page_id > 0)
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{
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(*p_page_id)--;
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*p_selected_index = BBS_article_limit_per_page - 1;
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}
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else if (ch == KEY_UP || ch == 'k') // Rotate to the tail of list
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{
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if (total_page > 0)
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{
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*p_page_id = total_page - 1;
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}
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if (item_count > 0)
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{
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*p_selected_index = item_count - 1;
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}
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}
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}
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else
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{
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(*p_selected_index)--;
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}
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break;
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case '$':
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case KEY_END:
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if (total_page > 0)
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{
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*p_page_id = total_page - 1;
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}
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case 'N':
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case KEY_PGDN:
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if (item_count > 0)
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{
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*p_selected_index = item_count - 1;
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}
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case 'j':
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case KEY_DOWN:
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if (*p_selected_index + 1 >= item_count) // next page
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{
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if (*p_page_id + 1 < total_page)
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{
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(*p_page_id)++;
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*p_selected_index = 0;
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}
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else if (ch == KEY_DOWN || ch == 'j') // Rotate to the head of list
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{
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*p_page_id = 0;
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*p_selected_index = 0;
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}
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}
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else
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{
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(*p_selected_index)++;
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}
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break;
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case 'h':
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return SHOW_HELP;
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default:
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break;
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}
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if (old_page_id != *p_page_id)
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{
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return CHANGE_PAGE;
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}
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if (item_count > 0 && old_selected_index != *p_selected_index)
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{
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if (old_selected_index >= 0)
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{
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moveto(4 + old_selected_index, 1);
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outc(' ');
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}
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if (*p_selected_index >= 0)
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{
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moveto(4 + *p_selected_index, 1);
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outc('>');
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}
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iflush();
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old_selected_index = *p_selected_index;
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}
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}
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return EXIT_LIST;
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}
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int article_favor_display(ARTICLE_FAVOR *p_favor)
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{
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static int display_sname = 0;
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char page_info_str[LINE_BUFFER_LEN];
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char snames[BBS_article_limit_per_page][BBS_section_name_max_len + 1];
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ARTICLE *p_articles[BBS_article_limit_per_page];
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int article_count;
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int page_count;
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int page_id = 0;
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int selected_index = 0;
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int ret;
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if (p_favor == NULL)
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{
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log_error("NULL pointer error\n");
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return -1;
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}
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article_favor_draw_screen(display_sname);
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ret = query_favor_articles(p_favor, page_id, p_articles, snames, &article_count, &page_count);
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if (ret < 0)
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{
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log_error("query_favor_articles(page_id=%d) error\n", page_id);
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return -2;
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}
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if (article_count == 0) // empty list
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{
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selected_index = 0;
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}
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while (!SYS_server_exit)
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{
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ret = article_favor_draw_items(page_id, p_articles, snames, article_count, display_sname);
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if (ret < 0)
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{
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log_error("article_favor_draw_items(page_id=%d) error\n", page_id);
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return -3;
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}
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snprintf(page_info_str, sizeof(page_info_str),
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"\033[33m[第\033[36m%d\033[33m/\033[36m%d\033[33m页]",
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page_id + 1, MAX(page_count, 1));
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show_bottom(page_info_str);
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iflush();
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if (user_online_update("ARTICLE_FAVOR") < 0)
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{
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log_error("user_online_update(ARTICLE_FAVOR) error\n");
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}
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ret = article_favor_select(page_count, article_count, &page_id, &selected_index);
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switch (ret)
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{
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case EXIT_LIST:
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return 0;
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case UNSET_FAVOR:
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if (article_favor_set(p_articles[selected_index]->aid, &BBS_article_favor, 0) != 1)
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{
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log_error("article_favor_set(aid=%d, 0) error\n", p_articles[selected_index]->aid);
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break;
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}
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// continue to refresh list
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case CHANGE_PAGE:
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ret = query_favor_articles(p_favor, page_id, p_articles, snames, &article_count, &page_count);
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if (ret < 0)
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{
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log_error("query_favor_articles(page_id=%d) error\n", page_id);
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return -2;
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}
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if (article_count == 0) // empty list
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{
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selected_index = 0;
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}
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else if (selected_index >= article_count)
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{
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selected_index = article_count - 1;
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}
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break;
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case LOCATE_ARTICLE:
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if (section_list_display(snames[selected_index], p_articles[selected_index]->aid) < 0)
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{
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log_error("section_list_display(sname=%s, aid=%d) error\n",
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snames[selected_index], p_articles[selected_index]->aid);
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}
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break;
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case SWITCH_NAME:
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display_sname = !display_sname;
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article_favor_draw_screen(display_sname);
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break;
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case SHOW_HELP:
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// Display help information
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display_file(DATA_READ_HELP, 1);
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article_favor_draw_screen(display_sname);
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break;
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default:
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log_error("Unknown command %d\n", ret);
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}
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}
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return 0;
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}
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