view.php 8.61 KB
Newer Older
1
<?php
Petr Skoda's avatar
Petr Skoda committed
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
// This file is part of Book module for Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * Book view page
 *
 * @package    mod
 * @subpackage book
 * @copyright  2004-2010 Petr Skoda  {@link http://skodak.org}
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
Petr Skoda's avatar
Petr Skoda committed
25

26
require('../../config.php');
Petr Skoda's avatar
Petr Skoda committed
27
require_once($CFG->dirroot.'/mod/book/locallib.php');
Petr Skoda's avatar
Petr Skoda committed
28
29
30

$id        = required_param('id', PARAM_INT);           // Course Module ID
$chapterid = optional_param('chapterid', 0, PARAM_INT); // Chapter ID
31
$edit      = optional_param('edit', -1, PARAM_BOOL);    // Edit mode
Petr Skoda's avatar
Petr Skoda committed
32
33
34
35

// =========================================================================
// security checks START - teachers edit; students view
// =========================================================================
Petr Skoda's avatar
Petr Skoda committed
36
37
38
$cm = get_coursemodule_from_id('book', $id, 0, false, MUST_EXIST);
$course = $DB->get_record('course', array('id'=>$cm->course), '*', MUST_EXIST);
$book = $DB->get_record('book', array('id'=>$cm->instance), '*', MUST_EXIST);
Petr Skoda's avatar
Petr Skoda committed
39

40
41
42
require_course_login($course, true, $cm);

$context = get_context_instance(CONTEXT_MODULE, $cm->id);
43
44
45
46
47
48
49
require_capability('mod/book:read', $context);

$allowedit   = has_capability('mod/book:edit', $context);
$allowimport = has_capability('mod/book:import', $context);
$allowprint  = has_capability('mod/book:print', $context) and !$book->disableprinting;
$allowexport = has_capability('mod/book:exportimscp', $context);
$viewhidden  = has_capability('mod/book:viewhiddenchapters', $context);
50

Petr Skoda's avatar
Petr Skoda committed
51
$PAGE->set_url('/mod/book/view.php', array('id'=>$id, 'chapterid'=>$chapterid));
Petr Skoda's avatar
Petr Skoda committed
52

53
if ($allowedit) {
Petr Skoda's avatar
Petr Skoda committed
54
    if ($edit != -1 and confirm_sesskey()) {
Petr Skoda's avatar
Petr Skoda committed
55
56
57
58
59
60
61
62
63
64
65
66
67
        $USER->editing = $edit;
    } else {
        if (isset($USER->editing)) {
            $edit = $USER->editing;
        } else {
            $edit = 0;
        }
    }
} else {
    $edit = 0;
}

/// read chapters
Petr Skoda's avatar
Petr Skoda committed
68
69
$select = $viewhidden ? array('bookid' => $book->id) : array('bookid' => $book->id, 'hidden' => 0);
$chapters = $DB->get_records('book_chapters', $select, 'pagenum', 'id, pagenum, subchapter, title, hidden');
Petr Skoda's avatar
Petr Skoda committed
70
71

if (!$chapters) {
72
    if ($allowedit) {
73
        redirect('edit.php?cmid='.$cm->id); //no chapters - add new one
Petr Skoda's avatar
Petr Skoda committed
74
75
76
77
78
79
80
81
        die;
    } else {
        error('Error reading book chapters.');
    }
}
/// check chapterid and read chapter data
if ($chapterid == '0') { // go to first chapter if no given
    foreach($chapters as $ch) {
82
        if ($allowedit) {
Petr Skoda's avatar
Petr Skoda committed
83
84
85
86
87
88
89
90
91
92
93
            $chapterid = $ch->id;
            break;
        }
        if (!$ch->hidden) {
            $chapterid = $ch->id;
            break;
        }
    }
}


Petr Skoda's avatar
Petr Skoda committed
94
if (!$chapter = $DB->get_record('book_chapters', array('id'=>$chapterid, 'bookid'=>$book->id))) {
Petr Skoda's avatar
Petr Skoda committed
95
96
97
98
99
100
101
102
    error('Error reading book chapters.');
}

//check all variables
unset($id);
unset($chapterid);

/// chapter is hidden for students
103
if (!$viewhidden and $chapter->hidden) {
Petr Skoda's avatar
Petr Skoda committed
104
105
106
107
108
109
110
    error('Error reading book chapters.');
}

// =========================================================================
// security checks  END
// =========================================================================

111
add_to_log($course->id, 'book', 'view', 'view.php?id='.$cm->id.'&amp;chapterid='.$chapter->id, $book->id, $cm->id);
Petr Skoda's avatar
Petr Skoda committed
112
113
114
115
116


///read standard strings
$strbooks = get_string('modulenameplural', 'book');
$strbook  = get_string('modulename', 'book');
Petr Skoda's avatar
Petr Skoda committed
117
$strtoc   = get_string('toc', 'book');
Petr Skoda's avatar
Petr Skoda committed
118
119

/// prepare header
Petr Skoda's avatar
Petr Skoda committed
120
121
122
123
$PAGE->set_title(format_string($book->name));
$PAGE->add_body_class('mod_book');
$PAGE->set_heading(format_string($course->fullname));
echo $OUTPUT->header();
Petr Skoda's avatar
Petr Skoda committed
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145

/// prepare chapter navigation icons
$previd = null;
$nextid = null;
$found = 0;
foreach ($chapters as $ch) {
    if ($found) {
        $nextid= $ch->id;
        break;
    }
    if ($ch->id == $chapter->id) {
        $found = 1;
    }
    if (!$found) {
        $previd = $ch->id;
    }
}
if ($ch == current($chapters)) {
    $nextid = $ch->id;
}
$chnavigation = '';
if ($previd) {
Petr Skoda's avatar
Petr Skoda committed
146
    $chnavigation .= '<a title="'.get_string('navprev', 'book').'" href="view.php?id='.$cm->id.'&amp;chapterid='.$previd.'"><img src="'.$OUTPUT->pix_url('nav_prev', 'mod_book').'" class="bigicon" alt="'.get_string('navprev', 'book').'"/></a>';
Petr Skoda's avatar
Petr Skoda committed
147
} else {
148
    $chnavigation .= '<img src="pix/nav_prev_dis.gif" class="bigicon" alt="" />';
Petr Skoda's avatar
Petr Skoda committed
149
150
}
if ($nextid) {
Petr Skoda's avatar
Petr Skoda committed
151
    $chnavigation .= '<a title="'.get_string('navnext', 'book').'" href="view.php?id='.$cm->id.'&amp;chapterid='.$nextid.'"><img src="'.$OUTPUT->pix_url('nav_next', 'mod_book').'" class="bigicon" alt="'.get_string('navnext', 'book').'" /></a>';
Petr Skoda's avatar
Petr Skoda committed
152
153
} else {
    $sec = '';
Petr Skoda's avatar
Petr Skoda committed
154
    if ($section = $DB->get_record('course_sections', array('id'=>$cm->section))) {
Petr Skoda's avatar
Petr Skoda committed
155
156
        $sec = $section->section;
    }
Petr Skoda's avatar
Petr Skoda committed
157
    $chnavigation .= '<a title="'.get_string('navexit', 'book').'" href="../../course/view.php?id='.$course->id.'#section-'.$sec.'"><img src="'.$OUTPUT->pix_url('nav_exit', 'mod_book').'" class="bigicon" alt="'.get_string('navexit', 'book').'" /></a>';
Petr Skoda's avatar
Petr Skoda committed
158
159
160
}

/// prepare print icons
161
if (!$allowprint) {
Petr Skoda's avatar
Petr Skoda committed
162
163
164
    $printbook = '';
    $printchapter = '';
} else {
Petr Skoda's avatar
Petr Skoda committed
165
166
    $printbook = '<a title="'.get_string('printbook', 'book').'" href="print.php?id='.$cm->id.'" onclick="this.target=\'_blank\'"><img src="'.$OUTPUT->pix_url('print_book', 'mod_book').'" class="bigicon" alt="'.get_string('printbook', 'book').'"/></a>';
    $printchapter = '<a title="'.get_string('printchapter', 'book').'" href="print.php?id='.$cm->id.'&amp;chapterid='.$chapter->id.'" onclick="this.target=\'_blank\'"><img src="'.$OUTPUT->pix_url('print_chapter', 'mod_book').'" class="bigicon" alt="'.get_string('printchapter', 'book').'"/></a>';
Petr Skoda's avatar
Petr Skoda committed
167
168
169
}

// prepare $toc and $currtitle, $currsubtitle
170
$print = 0;
Petr Skoda's avatar
Petr Skoda committed
171
include('toc.php');
Petr Skoda's avatar
Petr Skoda committed
172
173
174
175
176
177
178

if ($edit) {
    $tocwidth = $CFG->book_tocwidth + 80;
} else {
    $tocwidth = $CFG->book_tocwidth;
}

179
180
//$doimport = ($allowimport and $edit) ? '<div>(<a href="import.php?id='.$cm->id.'">'.get_string('doimport', 'book').'</a>)</div>' : '';
$doimport = ''; //TODO: after new file handling
181
182

/// Enable the IMS CP button
Petr Skoda's avatar
Petr Skoda committed
183
184
//$generateimscp = ($allowexport) ? '<a title="'.get_string('generateimscp', 'book').'" href="generateimscp.php?id='.$cm->id.'"><img class="bigicon" src="'.$OUTPUT->pix_url('generateimscp', 'mod_book').'" alt="'.get_string('generateimscp', 'book').'"></img></a>' : '';
$generateimscp = ''; //TODO after new file handling
Petr Skoda's avatar
Petr Skoda committed
185
186
187
188
189
190
191


// =====================================================
// Book display HTML code
// =====================================================

?>
192
<table class="booktable" width="100%" cellspacing="0" cellpadding="2">
Petr Skoda's avatar
Petr Skoda committed
193
194
195

<!-- subchapter title and upper navigation row //-->
<tr>
196
    <td style="width:<?php echo $tocwidth ?>px" valign="bottom">
197
198
        <?php
        print_string('toc', 'book');
199
        echo $doimport;
200
        ?>
Petr Skoda's avatar
Petr Skoda committed
201
    </td>
202
203
204
    <td>
        <div class="bookexport"><?php echo $printbook.$printchapter.$generateimscp ?></div>
        <div class="booknav"><?php echo $chnavigation ?></div>
Petr Skoda's avatar
Petr Skoda committed
205
206
207
208
    </td>
</tr>

<!-- toc and chapter row //-->
209
210
<tr class="tocandchapter">
    <td style="width:<?php echo $tocwidth ?>px" align="left"><div class="clearer">&nbsp;</div>
Petr Skoda's avatar
Petr Skoda committed
211
        <?php
Petr Skoda's avatar
Petr Skoda committed
212
        echo $OUTPUT->box_start('generalbox');
Petr Skoda's avatar
Petr Skoda committed
213
        echo $toc;
Petr Skoda's avatar
Petr Skoda committed
214
        echo $OUTPUT->box_end();
215
        if ($allowedit and $edit) {
216
            echo '<div class="faq">';
Petr Skoda's avatar
Petr Skoda committed
217
            echo $OUTPUT->help_icon('faq', 'mod_book', get_string('faq', 'mod_book'));
218
            echo '</div>';
Petr Skoda's avatar
Petr Skoda committed
219
220
221
        }
        ?>
    </td>
222
    <td align="right"><div class="clearer">&nbsp;</div>
Petr Skoda's avatar
Petr Skoda committed
223
        <?php
Petr Skoda's avatar
Petr Skoda committed
224
        echo $OUTPUT->box_start('generalbox');
Petr Skoda's avatar
Petr Skoda committed
225
        echo '<div class="book_content">';
Petr Skoda's avatar
Petr Skoda committed
226
227
        if (!$book->customtitles) {
          if ($currsubtitle == '&nbsp;') {
Petr Skoda's avatar
Petr Skoda committed
228
              echo '<p class="book_chapter_title">'.$currtitle.'</p>';
Petr Skoda's avatar
Petr Skoda committed
229
          } else {
Petr Skoda's avatar
Petr Skoda committed
230
              echo '<p class="book_chapter_title">'.$currtitle.'<br />'.$currsubtitle.'</p>';
Petr Skoda's avatar
Petr Skoda committed
231
232
          }
        }
Petr Skoda's avatar
Petr Skoda committed
233
        echo format_text($chapter->content, $chapter->contentformat, array('noclean'=>true, 'context'=>$context));
Petr Skoda's avatar
Petr Skoda committed
234
        echo '</div>';
Petr Skoda's avatar
Petr Skoda committed
235
        echo $OUTPUT->box_end();
Petr Skoda's avatar
Petr Skoda committed
236
        /// lower navigation
237
        echo '<div class="booknav">'.$chnavigation.'</div>';
Petr Skoda's avatar
Petr Skoda committed
238
239
240
241
242
243
        ?>
    </td>
</tr>
</table>

<?php
Petr Skoda's avatar
Petr Skoda committed
244
echo $OUTPUT->footer();
245