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364 lines
13 KiB
C
364 lines
13 KiB
C
// swad_timeline_share.c: social timeline shared
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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_global.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_form.h"
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#include "swad_timeline_notification.h"
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#include "swad_timeline_publication.h"
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#include "swad_timeline_share.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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#define TL_Sha_ICON_SHARE "share-alt.svg"
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#define TL_Sha_ICON_SHARED "share-alt-green.svg"
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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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/*****************************************************************************/
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/***************************** Private prototypes ****************************/
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/*****************************************************************************/
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static void TL_Sha_ShaNote (struct TL_Not_Note *Not);
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static void TL_Sha_UnsNote (struct TL_Not_Note *Not);
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static void TL_Sha_PutDisabledIconShare (unsigned NumShared);
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static void TL_Sha_PutFormToShaUnsNote (long NotCod);
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static bool TL_Sha_CheckIfNoteIsSharedByUsr (long NotCod,long UsrCod);
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static void TL_Sha_ShowUsrsWhoHaveSharedNote (const struct TL_Not_Note *Not,
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TL_Usr_HowManyUsrs_t HowManyUsrs);
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/*****************************************************************************/
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/******************************** Share a note *******************************/
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/*****************************************************************************/
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void TL_Sha_ShowAllSharersNoteUsr (void)
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{
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/***** Get user whom profile is displayed *****/
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Usr_GetParamOtherUsrCodEncryptedAndGetUsrData ();
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/***** Show all sharers *****/
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TL_Sha_ShowAllSharersNoteGbl ();
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}
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void TL_Sha_ShowAllSharersNoteGbl (void)
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{
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struct TL_Not_Note Not;
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/***** Get data of note *****/
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Not.NotCod = TL_Not_GetParamNotCod ();
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TL_Not_GetDataOfNoteByCod (&Not);
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/***** Write HTML inside DIV with form to share/unshare *****/
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TL_Sha_PutIconToShaUnsNote (&Not,TL_Usr_SHOW_ALL_USRS);
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}
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void TL_Sha_ShaNoteUsr (void)
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{
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/***** Get user whom profile is displayed *****/
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Usr_GetParamOtherUsrCodEncryptedAndGetUsrData ();
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/***** Share note *****/
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TL_Sha_ShaNoteGbl ();
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}
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void TL_Sha_ShaNoteGbl (void)
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{
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struct TL_Not_Note Not;
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/***** Share note *****/
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TL_Sha_ShaNote (&Not);
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/***** Write HTML inside DIV with form to unshare *****/
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TL_Sha_PutIconToShaUnsNote (&Not,TL_Usr_SHOW_FEW_USRS);
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}
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static void TL_Sha_ShaNote (struct TL_Not_Note *Not)
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{
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struct TL_Pub_Publication Pub;
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long OriginalPubCod;
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/***** Get data of note *****/
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Not->NotCod = TL_Not_GetParamNotCod ();
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TL_Not_GetDataOfNoteByCod (Not);
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if (Not->NotCod > 0)
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if (Gbl.Usrs.Me.Logged && // I am logged...
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!Usr_ItsMe (Not->UsrCod)) // ...but I am not the author
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if (!TL_Sha_CheckIfNoteIsSharedByUsr (Not->NotCod,
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Gbl.Usrs.Me.UsrDat.UsrCod)) // Not yet shared by me
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{
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/***** Share (publish note in timeline) *****/
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Pub.NotCod = Not->NotCod;
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Pub.PublisherCod = Gbl.Usrs.Me.UsrDat.UsrCod;
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Pub.PubType = TL_Pub_SHARED_NOTE;
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TL_Pub_PublishPubInTimeline (&Pub); // Set Pub.PubCod
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/* Update number of times this note is shared */
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TL_Sha_UpdateNumTimesANoteHasBeenShared (Not);
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/**** Create notification about shared post
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for the author of the post ***/
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OriginalPubCod = TL_DB_GetPubCodOfOriginalNote (Not->NotCod);
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if (OriginalPubCod > 0)
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TL_Ntf_CreateNotifToAuthor (Not->UsrCod,OriginalPubCod,
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Ntf_EVENT_TIMELINE_SHARE);
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}
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}
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/*****************************************************************************/
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/******************** Unshare a previously shared note ***********************/
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/*****************************************************************************/
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void TL_Sha_UnsNoteUsr (void)
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{
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/***** Get user whom profile is displayed *****/
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Usr_GetParamOtherUsrCodEncryptedAndGetUsrData ();
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/***** Unshare note *****/
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TL_Sha_UnsNoteGbl ();
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}
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void TL_Sha_UnsNoteGbl (void)
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{
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struct TL_Not_Note Not;
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/***** Unshare note *****/
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TL_Sha_UnsNote (&Not);
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/***** Write HTML inside DIV with form to share *****/
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TL_Sha_PutIconToShaUnsNote (&Not,TL_Usr_SHOW_FEW_USRS);
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}
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static void TL_Sha_UnsNote (struct TL_Not_Note *Not)
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{
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long OriginalPubCod;
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/***** Get data of note *****/
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Not->NotCod = TL_Not_GetParamNotCod ();
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TL_Not_GetDataOfNoteByCod (Not);
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if (Not->NotCod > 0)
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if (Not->NumShared &&
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Gbl.Usrs.Me.Logged && // I am logged...
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!Usr_ItsMe (Not->UsrCod)) // ...but I am not the author
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if (TL_Sha_CheckIfNoteIsSharedByUsr (Not->NotCod,
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Gbl.Usrs.Me.UsrDat.UsrCod)) // I am a sharer
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{
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/***** Delete publication from database *****/
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DB_QueryDELETE ("can not remove a publication",
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"DELETE FROM tl_pubs"
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" WHERE NotCod=%ld"
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" AND PublisherCod=%ld"
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" AND PubType=%u",
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Not->NotCod,
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Gbl.Usrs.Me.UsrDat.UsrCod,
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(unsigned) TL_Pub_SHARED_NOTE);
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/***** Update number of times this note is shared *****/
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TL_Sha_UpdateNumTimesANoteHasBeenShared (Not);
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/***** Mark possible notifications on this note as removed *****/
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OriginalPubCod = TL_DB_GetPubCodOfOriginalNote (Not->NotCod);
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if (OriginalPubCod > 0)
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Ntf_MarkNotifAsRemoved (Ntf_EVENT_TIMELINE_SHARE,OriginalPubCod);
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}
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}
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void TL_Sha_PutIconToShaUnsNote (const struct TL_Not_Note *Not,
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TL_Usr_HowManyUsrs_t HowManyUsrs)
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{
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/***** Put form to share/unshare this note *****/
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HTM_DIV_Begin ("class=\"TL_ICO\"");
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if (Not->Unavailable || // Unavailable notes can not be shared
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Usr_ItsMe (Not->UsrCod)) // I am the author
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/* Put disabled icon */
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TL_Sha_PutDisabledIconShare (Not->NumShared);
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else // Available and I am not the author
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/* Put icon to share/unshare */
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TL_Sha_PutFormToShaUnsNote (Not->NotCod);
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HTM_DIV_End ();
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/***** Show who have shared this note *****/
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TL_Sha_ShowUsrsWhoHaveSharedNote (Not,HowManyUsrs);
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}
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/*****************************************************************************/
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/*********************** Put disabled icon to share **************************/
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/*****************************************************************************/
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static void TL_Sha_PutDisabledIconShare (unsigned NumShared)
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{
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extern const char *Txt_TIMELINE_Shared_by_X_USERS;
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extern const char *Txt_TIMELINE_Not_shared_by_anyone;
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/***** Disabled icon to share *****/
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if (NumShared)
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{
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Ico_PutDivIcon ("TL_ICO_DISABLED",TL_Sha_ICON_SHARE,
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Str_BuildStringLong (Txt_TIMELINE_Shared_by_X_USERS,
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(long) NumShared));
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Str_FreeString ();
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}
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else
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Ico_PutDivIcon ("TL_ICO_DISABLED",TL_Sha_ICON_SHARE,
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Txt_TIMELINE_Not_shared_by_anyone);
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}
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/*****************************************************************************/
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/*********************** Form to share/unshare note **************************/
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/*****************************************************************************/
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static void TL_Sha_PutFormToShaUnsNote (long NotCod)
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{
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extern const char *Txt_TIMELINE_Shared;
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extern const char *Txt_TIMELINE_Share;
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struct TL_Form Form[2] =
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{
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[false] = // I have not shared ==> share
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{
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.Action = TL_Frm_SHA_NOTE,
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.ParamFormat = "NotCod=%ld",
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.ParamCod = NotCod,
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.Icon = TL_Sha_ICON_SHARE,
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.Title = Txt_TIMELINE_Share,
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},
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[true] = // I have shared ==> unshare
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{
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.Action = TL_Frm_UNS_NOTE,
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.ParamFormat = "NotCod=%ld",
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.ParamCod = NotCod,
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.Icon = TL_Sha_ICON_SHARED,
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.Title = Txt_TIMELINE_Shared,
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},
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};
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/***** Form and icon to share/unshare note *****/
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TL_Frm_FormFavSha (&Form[TL_Sha_CheckIfNoteIsSharedByUsr (NotCod,Gbl.Usrs.Me.UsrDat.UsrCod)]);
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}
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/*****************************************************************************/
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/****************** Check if a user has published a note *********************/
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/*****************************************************************************/
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static bool TL_Sha_CheckIfNoteIsSharedByUsr (long NotCod,long UsrCod)
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{
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return (DB_QueryCOUNT ("can not check if a user has shared a note",
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"SELECT COUNT(*) FROM tl_pubs"
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" WHERE NotCod=%ld"
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" AND PublisherCod=%ld"
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" AND PubType=%u",
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NotCod,
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UsrCod,
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(unsigned) TL_Pub_SHARED_NOTE) != 0);
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}
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/*****************************************************************************/
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/********** Get number of times a note has been shared in timeline ***********/
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/*****************************************************************************/
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void TL_Sha_UpdateNumTimesANoteHasBeenShared (struct TL_Not_Note *Not)
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{
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/***** Get number of times (users) this note has been shared *****/
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Not->NumShared =
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(unsigned) DB_QueryCOUNT ("can not get number of times"
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" a note has been shared",
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"SELECT COUNT(*) FROM tl_pubs"
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" WHERE NotCod=%ld"
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" AND PublisherCod<>%ld"
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" AND PubType=%u",
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Not->NotCod,
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Not->UsrCod, // The author
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(unsigned) TL_Pub_SHARED_NOTE);
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}
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/*****************************************************************************/
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/******************* Show users who have shared this note ********************/
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/*****************************************************************************/
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static void TL_Sha_ShowUsrsWhoHaveSharedNote (const struct TL_Not_Note *Not,
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TL_Usr_HowManyUsrs_t HowManyUsrs)
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{
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MYSQL_RES *mysql_res;
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unsigned NumFirstUsrs;
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/***** Get users who have shared this note *****/
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if (Not->NumShared)
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NumFirstUsrs =
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(unsigned) DB_QuerySELECT (&mysql_res,"can not get users",
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"SELECT PublisherCod FROM tl_pubs"
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" WHERE NotCod=%ld"
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" AND PublisherCod<>%ld"
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" AND PubType=%u"
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" ORDER BY PubCod LIMIT %u",
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Not->NotCod,
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Not->UsrCod,
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(unsigned) TL_Pub_SHARED_NOTE,
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HowManyUsrs == TL_Usr_SHOW_FEW_USRS ? TL_Usr_DEF_USRS_SHOWN :
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TL_Usr_MAX_USRS_SHOWN);
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else
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NumFirstUsrs = 0;
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/***** Show users *****/
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/* Number of users */
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HTM_DIV_Begin ("class=\"TL_NUM_USRS\"");
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TL_Usr_ShowNumSharersOrFavers (Not->NumShared);
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HTM_DIV_End ();
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/* List users one by one */
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HTM_DIV_Begin ("class=\"TL_USRS\"");
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TL_Usr_ShowSharersOrFavers (&mysql_res,Not->NumShared,NumFirstUsrs);
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if (NumFirstUsrs < Not->NumShared)
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/* Clickable ellipsis to show all users */
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TL_Frm_PutFormToSeeAllFaversSharers (TL_Frm_ALL_SHA_NOTE,
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"NotCod=%ld",Not->NotCod,
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HowManyUsrs);
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HTM_DIV_End ();
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/***** Free structure that stores the query result *****/
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if (Not->NumShared)
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DB_FreeMySQLResult (&mysql_res);
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}
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