xref: /plugin/todo/syntax/todo.php (revision 6c27bfb124c06766f93d1f51ed404087298ec039) 
1<?php
2/**
3 * ToDo Plugin: Creates a checkbox based todo list
4 *
5 * Syntax: <todo [@username] [#]>Name of Action</todo> -
6 *  Creates a Checkbox with the "Name of Action" as
7 *  the text associated with it. The hash (#, optional)
8 *  will cause the checkbox to be checked by default.
9 *  The @ sign followed by a username can be used to assign this todo to a user.
10 *  examples:
11 *     A todo without user assignment
12 *       <todo>Something todo</todo>
13 *     A completed todo without user assignment
14 *       <todo #>Completed todo</todo>
15 *     A todo assigned to user User
16 *       <todo @leo>Something todo for Leo</todo>
17 *     A completed todo assigned to user User
18 *       <todo @leo #>Todo completed for Leo</todo>
19 *
20 * In combination with dokuwiki searchpattern plugin version (at least v20130408),
21 * it is a lightweight solution for a task management system based on dokuwiki.
22 * use this searchpattern expression for open todos:
23 *     ~~SEARCHPATTERN#'/<todo[^#>]*>.*?<\/todo[\W]*?>/'?? _ToDo ??~~
24 * use this searchpattern expression for completed todos:
25 *     ~~SEARCHPATTERN#'/<todo[^#>]*#[^>]*>.*?<\/todo[\W]*?>/'?? _ToDo ??~~
26 * do not forget the no-cache option
27 *     ~~NOCACHE~~
28 *
29 *
30 * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
31 * @author     Babbage <babbage@digitalbrink.com>; Leo Eibler <dokuwiki@sprossenwanne.at>
32 */
33
34if(!defined('DOKU_INC')) die();
35
36/**
37 * All DokuWiki plugins to extend the parser/rendering mechanism
38 * need to inherit from this class
39 */
40class syntax_plugin_todo_todo extends DokuWiki_Syntax_Plugin {
41
42    const TODO_UNCHECK_ALL = '~~TODO:UNCHECKALL~~';
43
44    /**
45     * Get the type of syntax this plugin defines.
46     *
47     * @return String
48     */
49    public function getType() {
50        return 'substition';
51    }
52
53    /**
54     * Paragraph Type
55     *
56     * 'normal' - The plugin can be used inside paragraphs
57     * 'block'  - Open paragraphs need to be closed before plugin output
58     * 'stack'  - Special case. Plugin wraps other paragraphs.
59     */
60    function getPType(){
61        return 'normal';
62    }
63
64    /**
65     * Where to sort in?
66     *
67     * @return Integer
68     */
69    public function getSort() {
70        return 999;
71    }
72
73    /**
74     * Connect lookup pattern to lexer.
75     *
76     * @param $mode String The desired rendermode.
77     * @return void
78     * @see render()
79     */
80    public function connectTo($mode) {
81        $this->Lexer->addEntryPattern('<todo[\s]*?.*?>(?=.*?</todo>)', $mode, 'plugin_todo_todo');
82        $this->Lexer->addSpecialPattern(self::TODO_UNCHECK_ALL, $mode, 'plugin_todo_todo');
83        $this->Lexer->addSpecialPattern('~~NOTODO~~', $mode, 'plugin_todo_todo');
84    }
85
86    public function postConnect() {
87        $this->Lexer->addExitPattern('</todo>', 'plugin_todo_todo');
88    }
89
90    /**
91     * Handler to prepare matched data for the rendering process.
92     *
93     * @param $match    string  The text matched by the patterns.
94     * @param $state    int     The lexer state for the match.
95     * @param $pos      int     The character position of the matched text.
96     * @param $handler Doku_Handler  Reference to the Doku_Handler object.
97     * @return int The current lexer state for the match.
98     */
99    public function handle($match, $state, $pos, Doku_Handler $handler) {
100        switch($state) {
101            case DOKU_LEXER_ENTER :
102                #Search to see if the '#' is in the todotag (if so, this means the Action has been completed)
103                $x = preg_match('%<todo([^>]*)>%i', $match, $tododata);
104                if($x) {
105                    $handler->todoargs =  $this->parseTodoArgs($tododata[1]);
106                }
107                if(!isset($handler->todo_index) || !is_numeric($handler->todo_index)) {
108                    $handler->todo_index = 0;
109                }
110                $handler->todo_user = '';
111                $handler->checked = '';
112                $handler->todotitle = '';
113                break;
114            case DOKU_LEXER_MATCHED :
115                break;
116            case DOKU_LEXER_UNMATCHED :
117                /**
118                 * Structure:
119                 * input(checkbox)
120                 * <span>
121                 * -<a> (if links is on) or <span> (if links is off)
122                 * --<del> (if strikethrough is on) or --NOTHING--
123                 * -</a> or </span>
124                 * </span>
125                 */
126                $handler->todotitle = $match;
127                break;
128            case DOKU_LEXER_EXIT :
129                $data = array_merge(array ($state, 'todotitle' => $handler->todotitle, 'todoindex' => $handler->todo_index, 'todouser' => $handler->todo_user, 'checked' => $handler->checked), $handler->todoargs);
130                $handler->todo_index++;
131                #Delete temporary checked variable
132                unset($handler->todo_user);
133                unset($handler->checked);
134                unset($handler->todoargs);
135                unset($handler->todotitle);
136                return $data;
137            case DOKU_LEXER_SPECIAL :
138                if($match == self::TODO_UNCHECK_ALL) {
139                    return array($state, $match);
140                }
141                break;
142        }
143        return array();
144    }
145
146    /**
147     * Handle the actual output creation.
148     *
149     * @param  $mode     String        The output format to generate.
150     * @param $renderer Doku_Renderer A reference to the renderer object.
151     * @param  $data     Array         The data created by the <tt>handle()</tt> method.
152     * @return Boolean true: if rendered successfully, or false: otherwise.
153     */
154    public function render($mode, Doku_Renderer $renderer, $data) {
155        global $ID;
156
157        if(empty($data)) {
158            return false;
159        }
160
161        [$state, $match] = $data;
162
163        if($mode == 'xhtml') {
164            /** @var $renderer Doku_Renderer_xhtml */
165            switch($state) {
166               case DOKU_LEXER_EXIT :
167                    #Output our result
168                    $renderer->doc .= $this->createTodoItem($renderer, $ID, array_merge($data, array('checkbox'=>'yes')));
169                    return true;
170                case DOKU_LEXER_SPECIAL :
171                    if($match == self::TODO_UNCHECK_ALL) {
172                        $renderer->doc .= '<button type="button" class="todouncheckall">Uncheck all todos</button>';
173                    }
174                    return true;
175            }
176        }
177        return false;
178    }
179
180    /**
181     * Parse the arguments of todotag
182     *
183     * @param string $todoargs
184     * @return array(bool, false|string) with checked and user
185     */
186    protected function parseTodoArgs($todoargs) {
187        $data['checked'] = false;
188        unset($data['start']);
189        unset($data['due']);
190        unset($data['completeddate']);
191        $data['showdate'] = $this->getConf("ShowdateTag");
192        $data['username'] = $this->getConf("Username");
193        $options = explode(' ', $todoargs);
194        foreach($options as $option) {
195            $option = trim($option);
196            if(empty($option)) continue;
197            if($option[0] == '@') {
198                $data['todousers'][] = substr($option, 1); //fill todousers array
199                if(!isset($data['todouser'])) $data['todouser'] = substr($option, 1); //set the first/main todouser
200            }
201            elseif($option[0] == '#') {
202                $data['checked'] = true;
203                @list($completeduser, $completeddate) = explode(':', $option, 2);
204                $data['completeduser'] = substr($completeduser, 1);
205                if(date('Y-m-d', strtotime($completeddate)) == $completeddate) {
206                    $data['completeddate'] = new DateTime($completeddate);
207                }
208            }
209            else {
210                @list($key, $value) = explode(':', $option, 2);
211                switch($key) {
212                    case 'username':
213                        if(in_array($value, array('user', 'real', 'none'))) {
214                            $data['username'] = $value;
215                        }
216                        break;
217                    case 'start':
218                        if(date('Y-m-d', strtotime($value)) == $value) {
219                            $data['start'] = new DateTime($value);
220                        }
221                        break;
222                    case 'due':
223                        if(date('Y-m-d', strtotime($value)) == $value) {
224                            $data['due'] = new DateTime($value);
225                        }
226                        break;
227                    case 'showdate':
228                        if(in_array($value, array('yes', 'no'))) {
229                            $data['showdate'] = ($value == 'yes');
230                        }
231                        break;
232                }
233            }
234        }
235        return $data;
236    }
237
238    /**
239     * @param Doku_Renderer_xhtml $renderer
240     * @param string $id of page
241     * @param array  $data  data for rendering options
242     * @return string html of an item
243     */
244    protected function createTodoItem($renderer, $id, $data) {
245        //set correct context
246        global $ID, $INFO;
247        $oldID = $ID;
248        $ID = $id;
249        $todotitle = $data['todotitle'];
250        $todoindex = $data['todoindex'];
251        $checked = $data['checked'];
252        $return = '<span class="todo">';
253
254        if($data['checkbox']) {
255            $return .= '<input type="checkbox" class="todocheckbox"'
256            . ' data-index="' . $todoindex . '"'
257            . ' data-date="' . hsc(@filemtime(wikiFN($ID))) . '"'
258            . ' data-pageid="' . hsc($ID) . '"'
259            . ' data-strikethrough="' . ($this->getConf("Strikethrough") ? '1' : '0') . '"'
260            . ($checked ? ' checked="checked"' : '') . ' /> ';
261        }
262
263        // Username(s) of todouser(s)
264        if (!isset($data['todousers'])) $data['todousers']=array();
265        $todousers = array();
266        foreach($data['todousers'] as $user) {
267            if (($user = $this->_prepUsername($user,$data['username'])) != '') {
268                $todousers[] = $user;
269            }
270        }
271        $todouser=join(', ',$todousers);
272
273        if($todouser!='') {
274            $return .= '<span class="todouser">[' . hsc($todouser) . ']</span>';
275        }
276        if(isset($data['completeduser']) && ($checkeduser=$this->_prepUsername($data['completeduser'],$data['username']))!='') {
277            $return .= '<span class="todouser">[' . hsc('✓ '.$checkeduser);
278            if(isset($data['completeddate'])) { $return .= ', '.$data['completeddate']->format('Y-m-d'); }
279            $return .= ']</span>';
280        }
281
282        // start/due date
283        unset($bg);
284        $now = new DateTime("now");
285        if(!$checked && (isset($data['start']) || isset($data['due'])) && (!isset($data['start']) || $data['start']<$now) && (!isset($data['due']) || $now<$data['due'])) $bg='todostarted';
286        if(!$checked && isset($data['due']) && $now>=$data['due']) $bg='tododue';
287
288        // show start/due date
289        if($data['showdate'] == 1 && (isset($data['start']) || isset($data['due']))) {
290            $return .= '<span class="tododates">[';
291            if(isset($data['start'])) { $return .= $data['start']->format('Y-m-d'); }
292            $return .= ' → ';
293            if(isset($data['due'])) { $return .= $data['due']->format('Y-m-d'); }
294            $return .= ']</span>';
295        }
296
297        $spanclass = 'todotext';
298        if($this->getConf("CheckboxText") && !$this->getConf("AllowLinks") && $oldID == $ID && $data['checkbox']) {
299            $spanclass .= ' clickabletodo todohlght';
300        }
301        if(isset($bg)) $spanclass .= ' '.$bg;
302        $return .= '<span class="' . $spanclass . '">';
303
304        if($checked && $this->getConf("Strikethrough")) {
305            $return .= '<del>';
306        }
307        $return .= '<span class="todoinnertext">';
308        if($this->getConf("AllowLinks")) {
309            $return .= $this->_createLink($renderer, $todotitle, $todotitle);
310        } else {
311            if ($oldID != $ID) {
312                $return .= $renderer->internallink($id, $todotitle, null, true);
313            } else {
314                 $return .= hsc($todotitle);
315            }
316        }
317        $return .= '</span>';
318
319        if($checked && $this->getConf("Strikethrough")) {
320            $return .= '</del>';
321        }
322
323        $return .= '</span></span>';
324
325        //restore page ID
326        $ID = $oldID;
327        return $return;
328    }
329
330    /**
331     * Prepare user name string.
332     *
333     * @param string $username
334     * @param string $displaytype - one of 'user', 'real', 'none'
335     * @return string
336     */
337    private function _prepUsername($username, $displaytype) {
338
339        switch ($displaytype) {
340            case "real":
341                global $auth;
342                $username = $auth->getUserData($username)['name'];
343                break;
344            case "none":
345                $username="";
346                break;
347            case "user":
348            default:
349                break;
350        }
351
352        return $username;
353    }
354
355     /**
356     * Generate links from our Actions if necessary.
357     *
358     * @param Doku_Renderer_xhtml $renderer
359     * @param string $pagename
360     * @param string $name
361     * @return string
362     */
363    private function _createLink($renderer, $pagename, $name = NULL) {
364        $id = $this->_composePageid($pagename);
365
366        return $renderer->internallink($id, $name, null, true);
367    }
368
369    /**
370     * Compose the pageid of the pages linked by a todoitem
371     *
372     * @param string $pagename
373     * @return string page id
374     */
375    private function _composePageid($pagename) {
376        #Get the ActionNamespace and make sure it ends with a : (if not, add it)
377        $actionNamespace = $this->getConf("ActionNamespace");
378        if(strlen($actionNamespace) == 0 || substr($actionNamespace, -1) != ':') {
379            $actionNamespace .= ":";
380        }
381
382        #Replace ':' in $pagename so we don't create unnecessary namespaces
383        $pagename = str_replace(':', '-', $pagename);
384
385        //resolve and build link
386        $id = $actionNamespace . $pagename;
387        return $id;
388    }
389
390    /**
391     * @brief this function can be called by dokuwiki plugin searchpattern to process the todos found by searchpattern.
392     * use this searchpattern expression for open todos:
393     *          ~~SEARCHPATTERN#'/<todo[^#>]*>.*?<\/todo[\W]*?>/'?? _ToDo ??~~
394     * use this searchpattern expression for completed todos:
395     *          ~~SEARCHPATTERN#'/<todo[^#>]*#[^>]*>.*?<\/todo[\W]*?>/'?? _ToDo ??~~
396     * this handler method uses the table and layout with css classes from searchpattern plugin
397     *
398     * @param $type   string type of the request from searchpattern plugin
399     *                (wholeoutput, intable:whole, intable:prefix, intable:match, intable:count, intable:suffix)
400     *                wholeoutput     = all output is done by THIS plugin (no output will be done by search pattern)
401     *                intable:whole   = the left side of table (page name) is done by searchpattern, the right side
402     *                                  of the table will be done by THIS plugin
403     *                intable:prefix  = on the right side of table - THIS plugin will output a prefix header and
404     *                                  searchpattern will continue it's default output
405     *                intable:match   = if regex, right side of table - THIS plugin will format the current
406     *                                  outputvalue ($value) and output it instead of searchpattern
407     *                intable:count   = if normal, right side of table - THIS plugin will format the current
408     *                                  outputvalue ($value) and output it instead of searchpattern
409     *                intable:suffix  = on the right side of table - THIS plugin will output a suffix footer and
410     *                                  searchpattern will continue it's default output
411     * @param Doku_Renderer_xhtml $renderer current rendering object (use $renderer->doc .= 'text' to output text)
412     * @param array $data     whole data multidemensional array( array( $page => $countOfMatches ), ... )
413     * @param array $matches  whole regex matches multidemensional array( array( 0 => '1st Match', 1 => '2nd Match', ... ), ... )
414     * @param string $page     id of current page
415     * @param array $params   the parameters set by searchpattern (see search pattern documentation)
416     * @param string $value    value which should be outputted by searchpattern
417     * @return bool true if THIS method is responsible for the output (using $renderer->doc) OR false if searchpattern should output it's default
418     */
419    public function _searchpatternHandler($type, $renderer, $data, $matches, $params = array(), $page = null, $value = null) {
420        $renderer->nocache();
421
422        $type = strtolower($type);
423        switch($type) {
424            case 'wholeoutput':
425                // $matches should hold an array with all <todo>matches</todo> or <todo #>matches</todo>
426                if(!is_array($matches)) {
427                    return false;
428                }
429                //file_put_contents( dirname(__FILE__).'/debug.txt', print_r($matches,true), FILE_APPEND );
430                //file_put_contents( dirname(__FILE__).'/debug.txt', print_r($params,true), FILE_APPEND );
431                $renderer->doc .= '<div class="sp_main">';
432                $renderer->doc .= '<table class="inline sp_main_table">'; //create table
433
434                foreach($matches as $page => $allTodosPerPage) {
435                    $renderer->doc .= '<tr class="sp_title"><th class="sp_title" colspan="2"><a href="' . wl($page) . '">' . $page . '</a></td></tr>';
436                    //entry 0 contains all whole matches
437                    foreach($allTodosPerPage[0] as $todoindex => $todomatch) {
438                        $x = preg_match('%<todo([^>]*)>(.*)</[\W]*todo[\W]*>%i', $todomatch, $tododata);
439
440                        if($x) {
441                            list($checked, $todouser) = $this->parseTodoArgs($tododata[1]);
442                            $todotitle = trim($tododata[2]);
443                            if(empty($todotitle)) {
444                                continue;
445                            }
446                            $renderer->doc .= '<tr class="sp_result"><td class="sp_page" colspan="2">';
447
448                            // in case of integration with searchpattern there is no chance to find the index of an element
449                            $renderer->doc .= $this->createTodoItem($renderer, $todotitle, $todoindex, $todouser, $checked, $page, array('checkbox'=>'yes', 'username'=>'user'));
450
451                            $renderer->doc .= '</td></tr>';
452                        }
453                    }
454                }
455                $renderer->doc .= '</table>'; //end table
456                $renderer->doc .= '</div>';
457                // true means, that this handler method does the output (searchpattern plugin has nothing to do)
458                return true;
459                break;
460            case 'intable:whole':
461                break;
462            case 'intable:prefix':
463                //$renderer->doc .= '<b>Start on Page '.$page.'</b>';
464                break;
465            case 'intable:match':
466                //$renderer->doc .= 'regex match on page '.$page.': <pre>'.$value.'</pre>';
467                break;
468            case 'intable:count':
469                //$renderer->doc .= 'normal count on page '.$page.': <pre>'.$value.'</pre>';
470                break;
471            case 'intable:suffix':
472                //$renderer->doc .= '<b>End on Page '.$page.'</b>';
473                break;
474            default:
475                break;
476        }
477        // false means, that this handler method does not output anything. all should be done by searchpattern plugin
478        return false;
479    }
480}
481
482//Setup VIM: ex: et ts=4 enc=utf-8 :
483