1/**
2 * Hides elements with a slide animation
3 *
4 * @param {function} fn optional callback to run after hiding
5 * @param {bool} noaria supress aria-expanded state setting
6 * @author Adrian Lang <mail@adrianlang.de>
7 */
8jQuery.fn.dw_hide = function(fn, noaria) {
9    if(!noaria) this.attr('aria-expanded', 'false');
10    return this.slideUp('fast', fn);
11};
12
13/**
14 * Unhides elements with a slide animation
15 *
16 * @param {function} fn optional callback to run after hiding
17 * @param {bool} noaria supress aria-expanded state setting
18 * @author Adrian Lang <mail@adrianlang.de>
19 */
20jQuery.fn.dw_show = function(fn, noaria) {
21    if(!noaria) this.attr('aria-expanded', 'true');
22    return this.slideDown('fast', fn);
23};
24
25/**
26 * Toggles visibility of an element using a slide element
27 *
28 * @param {bool} state the current state of the element (optional)
29 * @param {function} fn callback after the state has been toggled
30 * @param {bool} noaria supress aria-expanded state setting
31 */
32jQuery.fn.dw_toggle = function(state, fn, noaria) {
33    return this.each(function() {
34        var $this = jQuery(this);
35        if (typeof state === 'undefined') {
36            state = $this.is(':hidden');
37        }
38        $this[state ? "dw_show" : "dw_hide" ](fn, noaria);
39    });
40};
41
42/**
43 * Automatic behaviours
44 *
45 * This class wraps various JavaScript functionalities that are triggered
46 * automatically whenever a certain object is in the DOM or a certain CSS
47 * class was found
48 */
49var dw_behaviour = {
50
51    init: function(){
52        dw_behaviour.focusMarker();
53        dw_behaviour.scrollToMarker();
54        dw_behaviour.removeHighlightOnClick();
55        dw_behaviour.quickSelect();
56        dw_behaviour.checkWindowsShares();
57        dw_behaviour.subscription();
58        dw_behaviour.pageRestoreConfirm();
59        dw_behaviour.securityCheck();
60
61        dw_behaviour.revisionBoxHandler();
62        jQuery(document).on('click','#page__revisions input[type=checkbox]',
63            dw_behaviour.revisionBoxHandler
64        );
65
66        jQuery('.bounce').effect('bounce', {times:10}, 2000 );
67    },
68
69    /**
70     * Looks for an element with the ID scroll__here at scrolls to it
71     */
72    scrollToMarker: function(){
73        var $obj = jQuery('#scroll__here');
74        if($obj.length) {
75            if($obj.offset().top != 0) {
76                jQuery('html, body').animate({
77                    scrollTop: $obj.offset().top - 100
78                }, 500);
79            } else {
80                // hidden object have no offset but can still be scrolled into view
81                $obj[0].scrollIntoView();
82            }
83        }
84    },
85
86    /**
87     * Display confirm dialog on page restore action
88     */
89    pageRestoreConfirm: function(){
90        jQuery('#dokuwiki__pagetools li.revert a').on('click',
91            function() {
92                return confirm(LANG.restore_confirm);
93            }
94        );
95    },
96
97    /**
98     * Looks for an element with the ID focus__this at sets focus to it
99     */
100    focusMarker: function(){
101        jQuery('#focus__this').trigger('focus');
102    },
103
104    /**
105     * Remove all search highlighting when clicking on a highlighted term
106     */
107    removeHighlightOnClick: function(){
108        jQuery('span.search_hit').on('click',
109            function(e){
110                jQuery(e.target).removeClass('search_hit', 1000);
111            }
112        );
113    },
114
115    /**
116     * Autosubmit quick select forms
117     *
118     * When a <select> or <input> tag has the class "quickselect", this script will
119     * automatically submit its parent form when the select value changes.
120     * It also hides the submit button of the form.
121     *
122     * This includes a workaround a weird behaviour when the submit button has a name
123     *
124     * @link https://trackjs.com/blog/when-form-submit-is-not-a-function/
125     * @author Andreas Gohr <andi@splitbrain.org>
126     */
127    quickSelect: function(){
128        jQuery('.quickselect')
129            .change(function(e){ HTMLFormElement.prototype.submit.call(e.target.form); })
130            .closest('form').find(':button').not('.show').hide();
131    },
132
133    /**
134     * Display error for Windows Shares on browsers other than IE
135     *
136     * @author Michael Klier <chi@chimeric.de>
137     */
138    checkWindowsShares: function() {
139        if(!LANG.nosmblinks || navigator.userAgent.match(/(Trident|MSIE|Edge)/)) {
140            // No warning requested or none necessary
141            return;
142        }
143
144        jQuery('a.windows').on('click', function(){
145            alert(LANG.nosmblinks.replace(/\\n/,"\n"));
146        });
147    },
148
149    /**
150     * Hide list subscription style if target is a page
151     *
152     * @author Adrian Lang <lang@cosmocode.de>
153     * @author Pierre Spring <pierre.spring@caillou.ch>
154     */
155    subscription: function(){
156        var $form, $list, $digest;
157
158        $form = jQuery('#subscribe__form');
159        if (0 === $form.length) return;
160
161        $list = $form.find("input[name='sub_style'][value='list']");
162        $digest = $form.find("input[name='sub_style'][value='digest']");
163
164        $form.find("input[name='sub_target']")
165            .on('click',
166                function () {
167                    var $this = jQuery(this), show_list;
168                    if (!$this.prop('checked')) {
169                        return;
170                    }
171
172                    show_list = $this.val().match(/:$/);
173                    $list.parent().dw_toggle(show_list);
174                    if (!show_list && $list.prop('checked')) {
175                        $digest.prop('checked', 'checked');
176                    }
177                }
178            )
179            .filter(':checked')
180            .trigger('click');
181    },
182
183    /**
184     * disable multiple revisions checkboxes if two are checked
185     *
186     * @author Andreas Gohr <andi@splitbrain.org>
187     * @author Anika Henke <anika@selfthinker.org>
188     */
189    revisionBoxHandler: function() {
190        var $revisions = jQuery('#page__revisions');
191        var $all       = jQuery('input[type="checkbox"][name="rev2[]"]', $revisions);
192        var $checked   = $all.filter(':checked');
193        var $button    = jQuery('button', $revisions);
194
195        if($checked.length < 2) {
196            $all.prop('disabled', false);
197            $button.prop('disabled', true);
198        } else {
199            $all.prop('disabled', true);
200            $button.prop('disabled', false);
201            $checked.each(function(i) {
202                jQuery(this).prop('disabled', false);
203                if(i>1) {
204                    jQuery(this).prop('checked', false);
205                }
206            });
207        }
208    },
209
210    /**
211     * Check that access to the data directory is properly secured
212     *
213     * A successful check (a 403 error was returned when loading the image) is saved
214     * to session storage and not repeated again until the next browser session. This
215     * avoids overeager security bans (see #3363)
216     */
217    securityCheck: function () {
218        var $checkDiv = jQuery('#security__check');
219        if (!$checkDiv.length) return;
220        if (sessionStorage.getItem('dw-security-check:' + DOKU_BASE)) {
221            // check was already executed successfully
222            $checkDiv.remove();
223            return;
224        }
225
226        var img = new Image();
227        img.onerror = function () {
228            // successful check will not be repeated during session
229            $checkDiv.remove();
230            sessionStorage.setItem('dw-security-check:' + DOKU_BASE, true);
231        };
232        img.onload = function () {
233            // check failed, display a warning message
234            $checkDiv.html(LANG.data_insecure);
235            $checkDiv.addClass('error');
236        };
237        img.src = $checkDiv.data('src') + '?t=' + Date.now();
238    }
239};
240
241jQuery(dw_behaviour.init);
242