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/**
* Resource drag and drop.
*
* @class M.course.dragdrop.resource
* @constructor
* @extends M.core.dragdrop
*/
var DRAGRESOURCE = function() {
DRAGRESOURCE.superclass.constructor.apply(this, arguments);
};
Y.extend(DRAGRESOURCE, M.core.dragdrop, {
initializer: function() {
// Set group for parent class
this.groups = ['resource'];
this.samenodeclass = CSS.ACTIVITY;
this.parentnodeclass = CSS.SECTION;
this.samenodelabel = {
identifier: 'afterresource',
component: 'moodle'
};
this.parentnodelabel = {
identifier: 'totopofsection',
component: 'moodle'
};
// Go through all sections
var sectionlistselector = M.course.format.get_section_selector(Y);
if (sectionlistselector) {
sectionlistselector = '.' + CSS.COURSECONTENT + ' ' + sectionlistselector;
this.setup_for_section(sectionlistselector);
// Initialise drag & drop for all resources/activities
var nodeselector = sectionlistselector.slice(CSS.COURSECONTENT.length + 2) + ' li.' + CSS.ACTIVITY;
var del = new Y.DD.Delegate({
container: '.' + CSS.COURSECONTENT,
nodes: nodeselector,
target: true,
handles: ['.' + CSS.EDITINGMOVE],
dragConfig: {groups: this.groups}
});
del.dd.plug(Y.Plugin.DDProxy, {
// Don't move the node at the end of the drag
moveOnEnd: false,
cloneNode: true
});
del.dd.plug(Y.Plugin.DDConstrained, {
// Keep it inside the .course-content
constrain: '#' + CSS.PAGECONTENT
});
del.dd.plug(Y.Plugin.DDWinScroll);
M.course.coursebase.register_module(this);
M.course.dragres = this;
}
},
/**
* Apply dragdrop features to the specified selector or node that refers to section(s)
*
* @method setup_for_section
* @param {String} baseselector The CSS selector or node to limit scope to
*/
setup_for_section: function(baseselector) {
Y.Node.all(baseselector).each(function(sectionnode) {
var resources = sectionnode.one('.' + CSS.CONTENT + ' ul.' + CSS.SECTION);
// See if resources ul exists, if not create one
if (!resources) {
resources = Y.Node.create('<ul></ul>');
resources.addClass(CSS.SECTION);
sectionnode.one('.' + CSS.CONTENT + ' div.' + CSS.SUMMARY).insert(resources, 'after');
}
resources.setAttribute('data-draggroups', this.groups.join(' '));
// Define empty ul as droptarget, so that item could be moved to empty list
new Y.DD.Drop({
node: resources,
groups: this.groups,
padding: '20 0 20 0'
});
// Initialise each resource/activity in this section
this.setup_for_resource('#' + sectionnode.get('id') + ' li.' + CSS.ACTIVITY);
}, this);
},
/**
* Apply dragdrop features to the specified selector or node that refers to resource(s)
*
* @method setup_for_resource
* @param {String} baseselector The CSS selector or node to limit scope to
*/
setup_for_resource: function(baseselector) {
Y.Node.all(baseselector).each(function(resourcesnode) {
var draggroups = resourcesnode.getData('draggroups');
if (!draggroups) {
// This Drop Node has not been set up. Configure it now.
resourcesnode.setAttribute('data-draggroups', this.groups.join(' '));
// Define empty ul as droptarget, so that item could be moved to empty list
new Y.DD.Drop({
node: resourcesnode,
groups: this.groups,
padding: '20 0 20 0'
});
}
// Replace move icons
var move = resourcesnode.one('a.' + CSS.EDITINGMOVE);
if (move) {
var sr = move.getData('sectionreturn');
move.replace(this.get_drag_handle(M.util.get_string('movecoursemodule', 'moodle'),
CSS.EDITINGMOVE, CSS.ICONCLASS, true).setAttribute('data-sectionreturn', sr));
}
}, this);
},
drag_start: function(e) {
// Get our drag object
var drag = e.target;
if (drag.get('dragNode') === drag.get('node')) {
// We do not want to modify the contents of the real node.
// They will be the same during a keyboard drag and drop.
return;
}
drag.get('dragNode').setContent(drag.get('node').get('innerHTML'));
drag.get('dragNode').all('img.iconsmall').setStyle('vertical-align', 'baseline');
},
drag_dropmiss: function(e) {
// Missed the target, but we assume the user intended to drop it
// on the last last ghost node location, e.drag and e.drop should be
// prepared by global_drag_dropmiss parent so simulate drop_hit(e).
this.drop_hit(e);
},
drop_hit: function(e) {
var drag = e.drag;
// Get a reference to our drag node
var dragnode = drag.get('node');
var dropnode = e.drop.get('node');
// Add spinner if it not there
var actionarea = dragnode.one(CSS.ACTIONAREA);
var spinner = M.util.add_spinner(Y, actionarea);
var params = {};
// Handle any variables which we must pass back through to
var pageparams = this.get('config').pageparams;
var varname;
for (varname in pageparams) {
params[varname] = pageparams[varname];
}
// Prepare request parameters
params.sesskey = M.cfg.sesskey;
params.courseId = this.get('courseid');
params['class'] = 'resource';
params.field = 'move';
params.id = Number(Y.Moodle.core_course.util.cm.getId(dragnode));
params.sectionId = Y.Moodle.core_course.util.section.getId(dropnode.ancestor(M.course.format.get_section_wrapper(Y), true));
if (dragnode.next()) {
params.beforeId = Number(Y.Moodle.core_course.util.cm.getId(dragnode.next()));
}
// Do AJAX request
var uri = M.cfg.wwwroot + this.get('ajaxurl');
Y.io(uri, {
method: 'POST',
data: params,
on: {
start: function() {
this.lock_drag_handle(drag, CSS.EDITINGMOVE);
spinner.show();
},
success: function(tid, response) {
var responsetext = Y.JSON.parse(response.responseText);
var params = {element: dragnode, visible: responsetext.visible};
M.course.coursebase.invoke_function('set_visibility_resource_ui', params);
this.unlock_drag_handle(drag, CSS.EDITINGMOVE);
window.setTimeout(function() {
spinner.hide();
}, 250);
},
failure: function(tid, response) {
this.ajax_failure(response);
this.unlock_drag_handle(drag, CSS.SECTIONHANDLE);
spinner.hide();
// TODO: revert nodes location
}
},
context: this
});
}
}, {
NAME: 'course-dragdrop-resource',
ATTRS: {
courseid: {
value: null
},
ajaxurl: {
value: 0
},
config: {
value: 0
}
}
});
M.course = M.course || {};
M.course.init_resource_dragdrop = function(params) {
new DRAGRESOURCE(params);
};