File diff 85eae7afbbd1 → 6b0577b5052d
www/conservancy/static/admin-media/js/admin/CollapsedFieldsets.js
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new file 100644
 
// Finds all fieldsets with class="collapse", collapses them, and gives each
 
// one a "Show" link that uncollapses it. The "Show" link becomes a "Hide"
 
// link when the fieldset is visible.
 

	
 
function findForm(node) {
 
    // returns the node of the form containing the given node
 
    if (node.tagName.toLowerCase() != 'form') {
 
        return findForm(node.parentNode);
 
    }
 
    return node;
 
}
 

	
 
var CollapsedFieldsets = {
 
    collapse_re: /\bcollapse\b/,   // Class of fieldsets that should be dealt with.
 
    collapsed_re: /\bcollapsed\b/, // Class that fieldsets get when they're hidden.
 
    collapsed_class: 'collapsed',
 
    init: function() {
 
        var fieldsets = document.getElementsByTagName('fieldset');
 
        var collapsed_seen = false;
 
        for (var i = 0, fs; fs = fieldsets[i]; i++) {
 
            // Collapse this fieldset if it has the correct class, and if it
 
            // doesn't have any errors. (Collapsing shouldn't apply in the case
 
            // of error messages.)
 
            if (fs.className.match(CollapsedFieldsets.collapse_re) && !CollapsedFieldsets.fieldset_has_errors(fs)) {
 
                collapsed_seen = true;
 
                // Give it an additional class, used by CSS to hide it.
 
                fs.className += ' ' + CollapsedFieldsets.collapsed_class;
 
                // (<a id="fieldsetcollapser3" class="collapse-toggle" href="#">Show</a>)
 
                var collapse_link = document.createElement('a');
 
                collapse_link.className = 'collapse-toggle';
 
                collapse_link.id = 'fieldsetcollapser' + i;
 
                collapse_link.onclick = new Function('CollapsedFieldsets.show('+i+'); return false;');
 
                collapse_link.href = '#';
 
                collapse_link.innerHTML = gettext('Show');
 
                var h2 = fs.getElementsByTagName('h2')[0];
 
                h2.appendChild(document.createTextNode(' ('));
 
                h2.appendChild(collapse_link);
 
                h2.appendChild(document.createTextNode(')'));
 
            }
 
        }
 
        if (collapsed_seen) {
 
            // Expand all collapsed fieldsets when form is submitted.
 
            addEvent(findForm(document.getElementsByTagName('fieldset')[0]), 'submit', function() { CollapsedFieldsets.uncollapse_all(); });
 
        }
 
    },
 
    fieldset_has_errors: function(fs) {
 
        // Returns true if any fields in the fieldset have validation errors.
 
        var divs = fs.getElementsByTagName('div');
 
        for (var i=0; i<divs.length; i++) {
 
            if (divs[i].className.match(/\berror\b/)) {
 
                return true;
 
            }
 
        }
 
        return false;
 
    },
 
    show: function(fieldset_index) {
 
        var fs = document.getElementsByTagName('fieldset')[fieldset_index];
 
        // Remove the class name that causes the "display: none".
 
        fs.className = fs.className.replace(CollapsedFieldsets.collapsed_re, '');
 
        // Toggle the "Show" link to a "Hide" link
 
        var collapse_link = document.getElementById('fieldsetcollapser' + fieldset_index);
 
        collapse_link.onclick = new Function('CollapsedFieldsets.hide('+fieldset_index+'); return false;');
 
        collapse_link.innerHTML = gettext('Hide');
 
    },
 
    hide: function(fieldset_index) {
 
        var fs = document.getElementsByTagName('fieldset')[fieldset_index];
 
        // Add the class name that causes the "display: none".
 
        fs.className += ' ' + CollapsedFieldsets.collapsed_class;
 
        // Toggle the "Hide" link to a "Show" link
 
        var collapse_link = document.getElementById('fieldsetcollapser' + fieldset_index);
 
        collapse_link.onclick = new Function('CollapsedFieldsets.show('+fieldset_index+'); return false;');
 
        collapse_link.innerHTML = gettext('Show');
 
    },
 

	
 
    uncollapse_all: function() {
 
        var fieldsets = document.getElementsByTagName('fieldset');
 
        for (var i=0; i<fieldsets.length; i++) {
 
            if (fieldsets[i].className.match(CollapsedFieldsets.collapsed_re)) {
 
                CollapsedFieldsets.show(i);
 
            }
 
        }
 
    }
 
}
 

	
 
addEvent(window, 'load', CollapsedFieldsets.init);