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swad-core/swad_tab.c

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// swad_tab.c: tabs drawing
/*
SWAD (Shared Workspace At a Distance),
is a web platform developed at the University of Granada (Spain),
and used to support university teaching.
This file is part of SWAD core.
Copyright (C) 1999-2019 Antonio Cañas Vargas
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*****************************************************************************/
/********************************* Headers ***********************************/
/*****************************************************************************/
#include "swad_form.h"
#include "swad_global.h"
#include "swad_HTML.h"
#include "swad_parameter.h"
#include "swad_tab.h"
/*****************************************************************************/
/************** External global variables from others modules ****************/
/*****************************************************************************/
extern struct Globals Gbl;
/*****************************************************************************/
/****************************** Private constants ****************************/
/*****************************************************************************/
/*****************************************************************************/
/******************************* Private types *******************************/
/*****************************************************************************/
/*****************************************************************************/
/***************************** Private variables *****************************/
/*****************************************************************************/
/*****************************************************************************/
/***************************** Private prototypes ****************************/
/*****************************************************************************/
static bool Tab_CheckIfICanViewTab (Tab_Tab_t Tab);
static const char *Tab_GetIcon (Tab_Tab_t Tab);
/*****************************************************************************/
/**************** Draw tabs with the current tab highlighted *****************/
/*****************************************************************************/
void Tab_DrawTabs (void)
{
extern const char *The_ClassTxtTabOn[The_NUM_THEMES];
extern const char *The_ClassTxtTabOff[The_NUM_THEMES];
extern const char *The_TabOnBgColors[The_NUM_THEMES];
extern const char *The_TabOffBgColors[The_NUM_THEMES];
extern const char *Txt_TABS_TXT[Tab_NUM_TABS];
extern const char *Txt_TABS_TXT[Tab_NUM_TABS];
Tab_Tab_t NumTab;
bool ICanViewTab;
static const char *ClassHeadRow3[The_NUM_THEMES] =
{
[The_THEME_WHITE ] = "HEAD_ROW_3_WHITE",
[The_THEME_GREY ] = "HEAD_ROW_3_GREY",
[The_THEME_PURPLE] = "HEAD_ROW_3_PURPLE",
[The_THEME_BLUE ] = "HEAD_ROW_3_BLUE",
[The_THEME_YELLOW] = "HEAD_ROW_3_YELLOW",
[The_THEME_PINK ] = "HEAD_ROW_3_PINK",
};
/***** Start tabs container *****/
HTM_DIV_Begin ("class=\"%s\"",ClassHeadRow3[Gbl.Prefs.Theme]);
HTM_Txt ("<nav id=\"tabs\">");
HTM_UL_Begin ("class=\"TAB_LIST\"");
/***** Draw the tabs *****/
for (NumTab = (Tab_Tab_t) 1;
NumTab <= (Tab_Tab_t) Tab_NUM_TABS - 1;
NumTab++)
{
ICanViewTab = Tab_CheckIfICanViewTab (NumTab);
/* If current tab is unknown, then activate the first one with access allowed */
if (Gbl.Action.Tab == TabUnk)
{
Gbl.Action.Tab = NumTab;
Tab_DisableIncompatibleTabs ();
}
if (ICanViewTab) // Don't show the first hidden tabs
{
/* Form, icon (at top) and text (at bottom) of the tab */
HTM_LI_Begin ("class=\"%s %s\"",
NumTab == Gbl.Action.Tab ? "TAB_ON" :
"TAB_OFF",
NumTab == Gbl.Action.Tab ? The_TabOnBgColors[Gbl.Prefs.Theme] :
The_TabOffBgColors[Gbl.Prefs.Theme]);
if (NumTab == Gbl.Action.Tab)
HTM_DIV_Begin (NULL); // This div must be present even in current tab in order to render properly the tab
else
HTM_DIV_Begin ("class=\"ICO_HIGHLIGHT\"");
Frm_StartForm (ActMnu);
Par_PutHiddenParamUnsigned (NULL,"NxtTab",(unsigned) NumTab);
HTM_BUTTON_SUBMIT_Begin (Txt_TABS_TXT[NumTab],
NumTab == Gbl.Action.Tab ? "BT_LINK" :
"BT_LINK",
NULL);
HTM_IMG (Gbl.Prefs.URLIconSet,Tab_GetIcon (NumTab),Txt_TABS_TXT[NumTab],
"class=\"TAB_ICO\"");
HTM_DIV_Begin ("class=\"TAB_TXT %s\"",
NumTab == Gbl.Action.Tab ? The_ClassTxtTabOn[Gbl.Prefs.Theme] :
The_ClassTxtTabOff[Gbl.Prefs.Theme]);
HTM_Txt (Txt_TABS_TXT[NumTab]);
HTM_DIV_End ();
HTM_BUTTON_End ();
Frm_EndForm ();
HTM_DIV_End ();
HTM_LI_End ();
}
}
/***** End tabs container *****/
HTM_UL_End ();
HTM_Txt ("</nav>");
HTM_DIV_End ();
}
/*****************************************************************************/
/************************* Check if I can view a tab *************************/
/*****************************************************************************/
static bool Tab_CheckIfICanViewTab (Tab_Tab_t Tab)
{
switch (Tab)
{
case TabUnk:
return false;
case TabSys:
return (Gbl.Hierarchy.Cty.CtyCod <= 0); // No country selected
case TabCty:
return (Gbl.Hierarchy.Cty.CtyCod > 0 && // Country selected
Gbl.Hierarchy.Ins.InsCod <= 0); // No institution selected
case TabIns:
return (Gbl.Hierarchy.Ins.InsCod > 0 && // Institution selected
Gbl.Hierarchy.Ctr.CtrCod <= 0); // No centre selected
case TabCtr:
return (Gbl.Hierarchy.Ctr.CtrCod > 0 && // Centre selected
Gbl.Hierarchy.Deg.DegCod <= 0); // No degree selected
case TabDeg:
return (Gbl.Hierarchy.Deg.DegCod > 0 && // Degree selected
Gbl.Hierarchy.Crs.CrsCod <= 0); // No course selected
case TabCrs:
return (Gbl.Hierarchy.Level == Hie_CRS); // Course selected
case TabAss:
return (Gbl.Hierarchy.Level == Hie_CRS || // Course selected
Gbl.Usrs.Me.Role.Logged >= Rol_STD); // I belong to course or I am an admin
case TabFil:
return (Gbl.Hierarchy.Ins.InsCod > 0 || // Institution selected
Gbl.Usrs.Me.Logged); // I'm logged
default:
return true;
}
}
/*****************************************************************************/
/********************** Get icon associated to an action *********************/
/*****************************************************************************/
static const char *Tab_GetIcon (Tab_Tab_t NumTab)
{
static const char *Tab_TabIcons[Tab_NUM_TABS] =
{
[TabUnk] = NULL,
[TabStr] = "home",
[TabSys] = "sitemap",
[TabCty] = "globe",
[TabIns] = "university",
[TabCtr] = "building",
[TabDeg] = "graduation-cap",
[TabCrs] = "list-ol",
[TabAss] = "check",
[TabFil] = "folder-open",
[TabUsr] = "users",
[TabMsg] = "envelope",
[TabAna] = "chart-bar",
[TabPrf] = "user",
};
if (NumTab < (Tab_Tab_t) 1 || NumTab >= Tab_NUM_TABS)
return NULL;
return Ico_GetIcon (Tab_TabIcons[NumTab]);
}
/*****************************************************************************/
/*************** Set current tab depending on current action *****************/
/*****************************************************************************/
void Tab_SetCurrentTab (void)
{
Gbl.Action.Tab = Act_GetTab (Gbl.Action.Act);
/***** Change action and tab if country, institution, centre or degree
are incompatible with the current tab *****/
switch (Gbl.Action.Tab)
{
case TabCty:
if (Gbl.Hierarchy.Cty.CtyCod <= 0) // No country selected
Gbl.Action.Act = ActSeeCty;
break;
case TabIns:
if (Gbl.Hierarchy.Ins.InsCod <= 0) // No institution selected
{
if (Gbl.Hierarchy.Cty.CtyCod > 0) // Country selected, but no institution selected
Gbl.Action.Act = ActSeeIns;
else // No country selected
Gbl.Action.Act = ActSeeCty;
}
break;
case TabCtr:
if (Gbl.Hierarchy.Ctr.CtrCod <= 0) // No centre selected
{
if (Gbl.Hierarchy.Ins.InsCod > 0) // Institution selected, but no centre selected
Gbl.Action.Act = ActSeeCtr;
else if (Gbl.Hierarchy.Cty.CtyCod > 0) // Country selected, but no institution selected
Gbl.Action.Act = ActSeeIns;
else // No country selected
Gbl.Action.Act = ActSeeCty;
}
break;
case TabDeg:
if (Gbl.Hierarchy.Deg.DegCod <= 0) // No degree selected
{
if (Gbl.Hierarchy.Ctr.CtrCod > 0) // Centre selected, but no degree selected
Gbl.Action.Act = ActSeeDeg;
else if (Gbl.Hierarchy.Ins.InsCod > 0) // Institution selected, but no centre selected
Gbl.Action.Act = ActSeeCtr;
else if (Gbl.Hierarchy.Cty.CtyCod > 0) // Country selected, but no institution selected
Gbl.Action.Act = ActSeeIns;
else // No country selected
Gbl.Action.Act = ActSeeCty;
}
break;
default:
break;
}
Gbl.Action.Tab = Act_GetTab (Act_GetSuperAction (Gbl.Action.Act));
Tab_DisableIncompatibleTabs ();
}
/*****************************************************************************/
/************************** Disable incompatible tabs ************************/
/*****************************************************************************/
void Tab_DisableIncompatibleTabs (void)
{
/***** Set country, institution, centre, degree and course depending on the current tab.
This will disable tabs incompatible with the current one. *****/
switch (Gbl.Action.Tab)
{
case TabSys:
Gbl.Hierarchy.Cty.CtyCod = -1L;
/* falls through */
/* no break */
case TabCty:
Gbl.Hierarchy.Ins.InsCod = -1L;
/* falls through */
/* no break */
case TabIns:
Gbl.Hierarchy.Ctr.CtrCod = -1L;
/* falls through */
/* no break */
case TabCtr:
Gbl.Hierarchy.Deg.DegCod = -1L;
/* falls through */
/* no break */
case TabDeg:
Gbl.Hierarchy.Crs.CrsCod = -1L;
break;
default:
break;
}
}
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