45 lines
1.7 KiB
PHP
45 lines
1.7 KiB
PHP
<?php
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function page_comparator($a,$b){
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//This function is the sorting criterion for the later call of usort, which will sort the page objects
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//from pages.json in increasing order of their "index" value.
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return $a->index <=> $b->index;
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//For some reason, PHP8 requires the spaceship operator (<=>)
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//instead of a greater than symbol.
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}
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function gen_nav_element($page){
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$iframe = false;
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//By default, echo the contents of a file instead of embedding it in an iframe.
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if(isset($page->file)){
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$href = "index.php?page=".$page->query_value;
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$target = "_self";
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//If the page is associated with a file, then point the navibar href to the file's query value.
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$iframe = (isset($page->iframe)) ? true : false;
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//If the page has the iframe attribute, then keep track of that.
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} elseif(isset($page->link)) {
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$href = $page->link;
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$target = "_blank";
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//If instead the page is associated with an external link, then point the navibar href there and make it open in a new window.
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}
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echo "<a href='".$href."' target='".$target."'><div class='nav-tab'><span class='nav-text'>".$page->name."</span></div></a>";
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}
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$page_array = get_object_vars($pages);
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//Convert $pages from object to an associative array of [key=>val, key=>val]
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//where the keys are the names of the page objects from the JSON file and the
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//vals are the page objects themselves.
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usort($page_array,"page_comparator");
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//Sort the pages in order of increasing "index" value.
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foreach($page_array as $key=>$p){
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if($p->index>-1){
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gen_nav_element($p);
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//Pages with indices less than 0 are hidden from the navibar.
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}
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}
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?>
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