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Current File : //home2/vacivi36/ava/course/format/topics/format.js

// Javascript functions for Topics course format.

M.course = M.course || {};

M.course.format = M.course.format || {};

/**
 * Get sections config for this format.
 *
 * The section structure is:
 * <ul class="topics">
 *  <li class="section">...</li>
 *  <li class="section">...</li>
 *   ...
 * </ul>
 *
 * @return {object} section list configuration
 */
M.course.format.get_config = function() {
    return {
        container_node: 'ul',
        container_class: 'topics',
        section_node: 'li',
        section_class: 'section'
    };
};

/**
 * Swap section.
 *
 * @param {YUI} Y YUI3 instance
 * @param {string} node1 node to swap to
 * @param {string} node2 node to swap with
 */
M.course.format.swap_sections = function(Y, node1, node2) {
    var CSS = {
        COURSECONTENT: 'course-content',
        SECTIONADDMENUS: 'section_add_menus'
    };

    var sectionlist = Y.Node.all('.' + CSS.COURSECONTENT + ' ' + M.course.format.get_section_selector(Y));
    // Swap the non-ajax menus, noting these are not always present (depends on theme and user prefs).
    if (sectionlist.item(node1).one('.' + CSS.SECTIONADDMENUS)) {
        sectionlist.item(node1).one('.' + CSS.SECTIONADDMENUS).swap(sectionlist.item(node2).one('.' + CSS.SECTIONADDMENUS));
    }
};

/**
 * Process sections after ajax response.
 *
 * @param {YUI} Y YUI3 instance
 * @param {NodeList} sectionlist of sections
 * @param {array} response ajax response
 * @param {string} sectionfrom first affected section
 * @param {string} sectionto last affected section
 */
M.course.format.process_sections = function(Y, sectionlist, response, sectionfrom, sectionto) {
    var CSS = {
        SECTIONNAME: 'sectionname'
    },
    SELECTORS = {
        SECTIONLEFTSIDE: '.left .section-handle .icon'
    };

    if (response.action == 'move') {
        // If moving up swap around 'sectionfrom' and 'sectionto' so the that loop operates.
        if (sectionfrom > sectionto) {
            var temp = sectionto;
            sectionto = sectionfrom;
            sectionfrom = temp;
        }

        // Update titles and move icons in all affected sections.
        var ele, str, stridx, newstr;

        for (var i = sectionfrom; i <= sectionto; i++) {
            // Update section title.
            var content = Y.Node.create('<span>' + response.sectiontitles[i] + '</span>');
            sectionlist.item(i).all('.' + CSS.SECTIONNAME).setHTML(content);
            // Update the drag handle.
            ele = sectionlist.item(i).one(SELECTORS.SECTIONLEFTSIDE).ancestor('.section-handle');
            str = ele.getAttribute('title');
            stridx = str.lastIndexOf(' ');
            newstr = str.substr(0, stridx + 1) + i;
            ele.setAttribute('title', newstr);
            // Update the aria-label for the section.
            sectionlist.item(i).setAttribute('aria-label', content.get('innerText').trim());
        }
    }
};

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