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See the\n\/\/ GNU General Public License for more details.\n\/\/\n\/\/ You should have received a copy of the GNU General Public License\n\/\/ along with Moodle.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n\n\/**\n * A way to call HTML fragments to be inserted as required via JavaScript.\n *\n * @module     core\/fragment\n * @copyright  2016 Adrian Greeve <adrian@moodle.com>\n * @license    http:\/\/www.gnu.org\/copyleft\/gpl.html GNU GPL v3 or later\n * @since      3.1\n *\/\ndefine(['jquery', 'core\/ajax'], function($, ajax) {\n\n    \/**\n     * Loads an HTML fragment through a callback.\n     *\n     * @method loadFragment\n     * @param {string} component Component where callback is located.\n     * @param {string} callback Callback function name.\n     * @param {integer} contextid Context ID of the fragment.\n     * @param {object} params Parameters for the callback.\n     * @return {Promise} JQuery promise object resolved when the fragment has been loaded.\n     *\/\n    var loadFragment = function(component, callback, contextid, params) {\n        \/\/ Change params into required webservice format.\n        var formattedparams = [];\n        for (var index in params) {\n            formattedparams.push({\n                name: index,\n                value: params[index]\n            });\n        }\n\n        return ajax.call([{\n            methodname: 'core_get_fragment',\n            args: {\n                component: component,\n                callback: callback,\n                contextid: contextid,\n                args: formattedparams\n            }\n        }])[0];\n    };\n\n    \/**\n     * Converts the JS that was received from collecting JS requirements on the $PAGE so it can be added to the existing page\n     *\n     * @param {string} js\n     * @return {string}\n     *\/\n    var processCollectedJavascript = function(js) {\n        var jsNodes = $(js);\n        var allScript = '';\n        jsNodes.each(function(index, scriptNode) {\n            scriptNode = $(scriptNode);\n            var tagName = scriptNode.prop('tagName');\n            if (tagName && (tagName.toLowerCase() == 'script')) {\n                if (scriptNode.attr('src')) {\n                    \/\/ We only reload the script if it was not loaded already.\n                    var exists = false;\n                    $('script').each(function(index, s) {\n                        if ($(s).attr('src') == scriptNode.attr('src')) {\n                            exists = true;\n                        }\n                        return !exists;\n                    });\n                    if (!exists) {\n                        allScript += ' { ';\n                        allScript += ' node = document.createElement(\"script\"); ';\n                        allScript += ' node.type = \"text\/javascript\"; ';\n                        allScript += ' node.src = decodeURI(\"' + encodeURI(scriptNode.attr('src')) + '\"); ';\n                        allScript += ' document.getElementsByTagName(\"head\")[0].appendChild(node); ';\n                        allScript += ' } ';\n                    }\n                } else {\n                    allScript += ' ' + scriptNode.text();\n                }\n            }\n        });\n        return allScript;\n    };\n\n    return {\n        \/**\n         * Appends HTML and JavaScript fragments to specified nodes.\n         * Callbacks called by this AMD module are responsible for doing the appropriate security checks\n         * to access the information that is returned. This only does minimal validation on the context.\n         *\n         * @method fragmentAppend\n         * @param {string} component Component where callback is located.\n         * @param {string} callback Callback function name.\n         * @param {integer} contextid Context ID of the fragment.\n         * @param {object} params Parameters for the callback.\n         * @return {Deferred} new promise that is resolved with the html and js.\n         *\/\n        loadFragment: function(component, callback, contextid, params) {\n            var promise = $.Deferred();\n            loadFragment(component, callback, contextid, params).then(function(data) {\n                promise.resolve(data.html, processCollectedJavascript(data.javascript));\n            }).fail(function(ex) {\n                promise.reject(ex);\n            });\n            return promise.promise();\n        },\n\n        \/**\n         * Converts the JS that was received from collecting JS requirements on the $PAGE so it can be added to the existing page\n         *\n         * @param {string} js\n         * @return {string}\n         *\/\n        processCollectedJavascript: function(js) {\n            return processCollectedJavascript(js);\n        }\n    };\n});\n"],"file":"fragment.min.js"}