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217 lines
7.4 KiB
C
217 lines
7.4 KiB
C
// swad_timeline_who.c: select users whom timeline is displayed
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/*
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SWAD (Shared Workspace At a Distance),
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is a web platform developed at the University of Granada (Spain),
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and used to support university teaching.
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This file is part of SWAD core.
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Copyright (C) 1999-2021 Antonio Cañas Vargas
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General 3 License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*****************************************************************************/
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/*********************************** Headers *********************************/
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/*****************************************************************************/
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#include "swad_database.h"
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#include "swad_follow.h"
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#include "swad_global.h"
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#include "swad_parameter.h"
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#include "swad_setting.h"
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#include "swad_timeline.h"
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#include "swad_timeline_database.h"
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#include "swad_timeline_who.h"
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/*****************************************************************************/
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/****************************** Public constants *****************************/
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/*****************************************************************************/
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/*****************************************************************************/
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/************************* Private constants and types ***********************/
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/*****************************************************************************/
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/*****************************************************************************/
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/************** External global variables from others modules ****************/
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/*****************************************************************************/
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extern struct Globals Gbl;
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/*****************************************************************************/
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/************************* Private global variables **************************/
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/*****************************************************************************/
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Usr_Who_t TL_GlobalWho;
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/*****************************************************************************/
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/***************************** Private prototypes ****************************/
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/*****************************************************************************/
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static Usr_Who_t Tml_Who_GetWhoFromDB (void);
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static void Tml_Who_SetGlobalWho (Usr_Who_t Who);
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static void Tml_Who_ShowWarningYouDontFollowAnyUser (void);
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/*****************************************************************************/
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/******** Show form to select users whom public activity is displayed ********/
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/*****************************************************************************/
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void Tml_Who_PutFormWho (struct Tml_Timeline *Timeline)
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{
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Usr_Who_t Who;
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unsigned Mask = 1 << Usr_WHO_ME |
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1 << Usr_WHO_FOLLOWED |
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1 << Usr_WHO_ALL;
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/***** Setting selector for which users *****/
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Set_BeginSettingsHead ();
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Set_BeginOneSettingSelector ();
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for (Who = (Usr_Who_t) 0;
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Who <= (Usr_Who_t) (Usr_NUM_WHO - 1);
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Who++)
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if (Mask & (1 << Who))
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{
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/* Begin container */
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HTM_DIV_Begin ("class=\"%s\"",
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Who == Timeline->Who ? "PREF_ON" :
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"PREF_OFF");
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/* Begin form */
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Frm_BeginForm (ActSeeGblTL);
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Par_PutHiddenParamUnsigned (NULL,"Who",(unsigned) Who);
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/* Icon to select which users */
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Usr_PutWhoIcon (Who);
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/* End form */
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Frm_EndForm ();
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/* End container */
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HTM_DIV_End ();
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}
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Set_EndOneSettingSelector ();
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Set_EndSettingsHead ();
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/***** Show warning if I do not follow anyone *****/
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if (Timeline->Who == Usr_WHO_FOLLOWED)
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Tml_Who_ShowWarningYouDontFollowAnyUser ();
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}
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/*****************************************************************************/
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/********* Get parameter with which users to view in global timeline *********/
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/*****************************************************************************/
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void Tml_Who_GetParamWho (void)
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{
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Usr_Who_t Who;
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/***** Get which users I want to see *****/
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Who = Usr_GetHiddenParamWho ();
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/***** If parameter Who is not present, get it from database *****/
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if (Who == Usr_WHO_UNKNOWN)
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Who = Tml_Who_GetWhoFromDB ();
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/***** If parameter Who is unknown, set it to default *****/
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if (Who == Usr_WHO_UNKNOWN)
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Who = Tml_Who_DEFAULT_WHO;
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/***** Set global variable *****/
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Tml_Who_SetGlobalWho (Who);
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}
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/*****************************************************************************/
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/********* Get which users to view in global timeline from database **********/
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/*****************************************************************************/
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static Usr_Who_t Tml_Who_GetWhoFromDB (void)
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{
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MYSQL_RES *mysql_res;
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MYSQL_ROW row;
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unsigned UnsignedNum;
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Usr_Who_t Who = Usr_WHO_UNKNOWN;
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/***** Get which users from database *****/
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if (Tml_DB_GetWho (&mysql_res) == 1)
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{
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row = mysql_fetch_row (mysql_res);
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/* Get who */
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if (sscanf (row[0],"%u",&UnsignedNum) == 1)
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if (UnsignedNum < Usr_NUM_WHO)
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Who = (Usr_Who_t) UnsignedNum;
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}
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/***** Free structure that stores the query result *****/
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DB_FreeMySQLResult (&mysql_res);
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return Who;
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}
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/*****************************************************************************/
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/******** Save which users to view in global timeline into database **********/
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/*****************************************************************************/
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void Tml_Who_SaveWhoInDB (struct Tml_Timeline *Timeline)
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{
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if (Gbl.Usrs.Me.Logged) // Save only if I am logged
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{
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if (Timeline->Who == Usr_WHO_UNKNOWN)
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Timeline->Who = Tml_Who_DEFAULT_WHO;
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/***** Update which users in database *****/
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// Who is stored in usr_last for next time I log in
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Tml_DB_UpdateWho (Timeline->Who);
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}
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}
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/*****************************************************************************/
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/**** Set/get global variable with which users to view in global timeline ****/
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/*****************************************************************************/
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static void Tml_Who_SetGlobalWho (Usr_Who_t Who)
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{
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TL_GlobalWho = Who;
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}
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Usr_Who_t Tml_Who_GetGlobalWho (void)
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{
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return TL_GlobalWho;
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}
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/*****************************************************************************/
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/********* Get parameter with which users to view in global timeline *********/
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/*****************************************************************************/
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static void Tml_Who_ShowWarningYouDontFollowAnyUser (void)
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{
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extern const char *Txt_You_dont_follow_any_user;
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unsigned NumFollowing;
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unsigned NumFollowers;
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/***** Check if I follow someone *****/
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Fol_GetNumFollow (Gbl.Usrs.Me.UsrDat.UsrCod,&NumFollowing,&NumFollowers);
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if (!NumFollowing)
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{
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/***** Show warning if I do not follow anyone *****/
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Ale_ShowAlert (Ale_WARNING,Txt_You_dont_follow_any_user);
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/***** Contextual menu *****/
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Mnu_ContextMenuBegin ();
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Fol_PutLinkWhoToFollow (); // Users to follow
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Mnu_ContextMenuEnd ();
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}
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}
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