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180 lines (156 loc) · 6.27 KB
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/**
* Page behaviours
*
* This class adds various behaviours to the rendered page
*/
dw_page = {
/**
* initialize page behaviours
*/
init: function(){
dw_page.sectionHighlight();
jQuery('a.fn_top').mouseover(dw_page.footnoteDisplay);
dw_page.makeToggle('#dw__toc h3','#dw__toc > div');
},
/**
* Highlight the section when hovering over the appropriate section edit button
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
sectionHighlight: function() {
jQuery('form.btn_secedit')
.mouseover(function(){
var $tgt = jQuery(this).parent(),
nr = $tgt.attr('class').match(/(\s+|^)editbutton_(\d+)(\s+|$)/)[2],
$highlight = jQuery(), // holder for elements in the section to be highlighted
$highlightWrap = jQuery('<div class="section_highlight"></div>'); // section highlight wrapper
// Walk the dom tree in reverse to find the sibling which is or contains the section edit marker
while($tgt.length > 0 && !($tgt.hasClass('sectionedit' + nr) || $tgt.find('.sectionedit' + nr).length)) {
$tgt = $tgt.prev();
$highlight = $highlight.add($tgt);
}
// insert the section highlight wrapper before the last element added to $highlight
$highlight.filter(':last').before($highlightWrap);
// and move the elements to be highlighted inside the section highlight wrapper
$highlight.detach().appendTo($highlightWrap);
})
.mouseout(function(){
// find the section highlight wrapper...
var $highlightWrap = jQuery('.section_highlight');
// ...move its children in front of it (as siblings)...
$highlightWrap.before($highlightWrap.children().detach());
// ...and remove the section highlight wrapper
$highlightWrap.detach();
});
},
/**
* Create/get a insitu popup used by the footnotes
*
* @param target - the DOM element at which the popup should be aligned at
* @param popup_id - the ID of the (new) DOM popup
* @return the Popup jQuery object
*/
insituPopup: function(target, popup_id) {
// get or create the popup div
var $fndiv = jQuery('#' + popup_id);
// popup doesn't exist, yet -> create it
if($fndiv.length === 0){
$fndiv = jQuery(document.createElement('div'))
.attr('id', popup_id)
.addClass('insitu-footnote JSpopup')
.attr('aria-hidden', 'true')
.mouseleave(function () {jQuery(this).hide().attr('aria-hidden', 'true');})
.attr('role', 'tooltip');
jQuery('.dokuwiki:first').append($fndiv);
}
// position() does not support hidden elements
$fndiv.show().position({
my: 'left top',
at: 'left center',
of: target
}).hide();
return $fndiv;
},
/**
* Display an insitu footnote popup
*
* @author Andreas Gohr <andi@splitbrain.org>
* @author Chris Smith <chris@jalakai.co.uk>
*/
footnoteDisplay: function () {
var content = jQuery(jQuery(this).attr('href')) // Footnote text anchor
.closest('div.fn').html();
if (content === null){
return;
}
// strip the leading content anchors and their comma separators
content = content.replace(/((^|\s*,\s*)<sup>.*?<\/sup>)+\s*/gi, '');
// prefix ids on any elements with "insitu__" to ensure they remain unique
content = content.replace(/\bid=(['"])([^"']+)\1/gi,'id="insitu__$2');
// now put the content into the wrapper
dw_page.insituPopup(this, 'insitu__fn').html(content).show().attr('aria-hidden', 'false');
},
/**
* Makes an element foldable by clicking its handle
*
* This is used for the TOC toggling, but can be used for other elements
* as well. A state indicator is inserted into the handle and can be styled
* by CSS.
*
* @param selector handle What should be clicked to toggle
* @param selector content This element will be toggled
*/
makeToggle: function(handle, content, state){
var $handle, $content, $clicky, $child, setClicky;
$handle = jQuery(handle);
if(!$handle.length) return;
$content = jQuery(content);
if(!$content.length) return;
// we animate the children
$child = $content.children();
// class/display toggling
setClicky = function(hiding){
if(hiding){
$clicky.html('<span>+</span>');
$handle.addClass('closed');
$handle.removeClass('open');
}else{
$clicky.html('<span>−</span>');
$handle.addClass('open');
$handle.removeClass('closed');
}
};
$handle[0].setState = function(state){
var hidden;
if(!state) state = 1;
// Assert that content instantly takes the whole space
$content.css('min-height', $content.height()).show();
// stop any running animation
$child.stop(true, true);
// was a state given or do we toggle?
if(state === -1) {
hidden = false;
} else if(state === 1) {
hidden = true;
} else {
hidden = $child.is(':hidden');
}
// update the state
setClicky(!hidden);
// Start animation and assure that $toc is hidden/visible
$child.dw_toggle(hidden, function () {
$content.toggle(hidden);
$content.css('min-height',''); // remove min-height again
});
};
// the state indicator
$clicky = jQuery(document.createElement('strong'));
// click function
$handle.css('cursor','pointer')
.click($handle[0].setState)
.prepend($clicky);
// initial state
$handle[0].setState(state);
}
};
jQuery(dw_page.init);