Sindbad~EG File Manager
/**
* This file contains the drag and drop manager class.
*
* Provides drag and drop functionality for blocks.
*
* @module moodle-core-blockdraganddrop
*/
/**
* Constructs a new Block drag and drop manager.
*
* @namespace M.core.blockdraganddrop
* @class Manager
* @constructor
* @extends M.core.dragdrop
*/
MANAGER = function() {
MANAGER.superclass.constructor.apply(this, arguments);
};
MANAGER.prototype = {
/**
* The skip block link from above the block being dragged while a drag is in progress.
* Required by the M.core.dragdrop from whom this class extends.
* @private
* @property skipnodetop
* @type Node
* @default null
*/
skipnodetop: null,
/**
* The skip block link from below the block being dragged while a drag is in progress.
* Required by the M.core.dragdrop from whom this class extends.
* @private
* @property skipnodebottom
* @type Node
* @default null
*/
skipnodebottom: null,
/**
* An associative object of regions and the
* @property regionobjects
* @type {Object} Primitive object mocking an associative array.
* @type {BLOCKREGION} [regionname]* Each item uses the region name as the key with the value being
* an instance of the BLOCKREGION class.
*/
regionobjects: {},
/**
* Called during the initialisation process of the object.
* @method initializer
*/
initializer: function() {
Y.log('Initialising drag and drop for blocks.', 'info');
var regionnames = this.get('regions');
var i = 0;
var dragContainer;
var dragdelegation;
var region;
var regionContainer;
var regionname;
// Evil required by M.core.dragdrop.
this.groups = ['block'];
this.samenodeclass = CSS.BLOCK;
this.parentnodeclass = CSS.BLOCKREGION;
// Detect the direction of travel.
this.detectkeyboarddirection = true;
// Add relevant classes and ID to 'content' block region on Dashboard page.
var myhomecontent = Y.Node.all('body#' + CSS.MYINDEX + ' #' + CSS.REGIONMAIN + ' > .' + CSS.REGIONCONTENT);
if (myhomecontent.size() > 0) {
var contentregion = myhomecontent.item(0);
contentregion.addClass(CSS.BLOCKREGION);
contentregion.set('id', CSS.REGIONCONTENT);
contentregion.one('div').addClass(CSS.REGIONCONTENT);
}
for (i in regionnames) {
regionname = regionnames[i];
regionContainer = Y.one('#block-region-' + regionname);
region = new BLOCKREGION({
manager: this,
region: regionname,
node: regionContainer,
});
this.regionobjects[regionname] = region;
// Setting blockregion as droptarget (the case when it is empty)
// The region-post (the right one)
// is very narrow, so add extra padding on the left to drop block on it.
new Y.DD.Drop({
node: region.get_droptarget(),
groups: this.groups,
padding: '40 240 40 240'
});
// Make each div element in the list of blocks draggable
dragdelegation = new Y.DD.Delegate({
container: region.get_droptarget(),
nodes: '.' + CSS.BLOCK,
target: true,
handles: [SELECTOR.DRAGHANDLE],
invalid: '.block-hider-hide, .block-hider-show, .moveto, .block_fake',
dragConfig: {groups: this.groups}
});
dragdelegation.dd.plug(Y.Plugin.DDProxy, {
// Don't move the node at the end of the drag
moveOnEnd: false
});
if (regionContainer === null) {
dragdelegation.dd.plug(Y.Plugin.DDWinScroll);
} else {
dragContainer = regionContainer.ancestor('.drag-container', true);
if (dragContainer) {
dragdelegation.dd.plug(Y.Plugin.DDNodeScroll, {
node: dragContainer,
});
} else {
dragdelegation.dd.plug(Y.Plugin.DDWinScroll);
}
}
// On the DD Manager start operation, we enable all block regions so that they can be drop targets. This
// must be done *before* drag:start but after dragging has been initialised.
Y.DD.DDM.on('ddm:start', this.enable_all_regions, this);
region.change_block_move_icons(this);
}
Y.log('Initialisation of drag and drop for blocks complete.', 'info');
},
/**
* Returns the ID of the block the given node represents.
* @method get_block_id
* @param {Node} node
* @return {int} The blocks ID in the database.
*/
get_block_id: function(node) {
return Number(node.get('id').replace(/inst/i, ''));
},
/**
* Returns the block region that the node is part of or belonging to.
* @method get_block_region
* @param {Y.Node} node
* @return {string} The region name.
*/
get_block_region: function(node) {
if (!node.test('[data-blockregion]')) {
node = node.ancestor('[data-blockregion]');
}
return node.getData('blockregion');
},
/**
* Returns the BLOCKREGION instance that represents the block region the given node is part of.
* @method get_region_object
* @param {Y.Node} node
* @return {BLOCKREGION}
*/
get_region_object: function(node) {
return this.regionobjects[this.get_block_region(node)];
},
/**
* Enables all fo the regions so that they are all visible while dragging is occuring.
*
* @method enable_all_regions
*/
enable_all_regions: function() {
var groups = Y.DD.DDM.activeDrag.get('groups');
// As we're called by Y.DD.DDM, we can't be certain that the call
// relates specifically to a block drag/drop operation. Test
// whether the relevant group applies here.
if (!groups || Y.Array.indexOf(groups, 'block') === -1) {
return;
}
var i;
for (i in this.regionobjects) {
if (!this.regionobjects.hasOwnProperty(i)) {
continue;
}
this.regionobjects[i].enable();
}
},
/**
* Disables enabled regions if they contain no blocks.
* @method disable_regions_if_required
*/
disable_regions_if_required: function() {
var i = 0;
for (i in this.regionobjects) {
this.regionobjects[i].disable_if_required();
}
},
/**
* Called by M.core.dragdrop.global_drag_start when dragging starts.
* @method drag_start
* @param {Event} e
*/
drag_start: function(e) {
// Get our drag object
var drag = e.target;
// Store the parent node of original drag node (block)
// we will need it later for show/hide empty regions
// Determine skipnodes and store them
if (drag.get('node').previous() && drag.get('node').previous().hasClass(CSS.SKIPBLOCK)) {
this.skipnodetop = drag.get('node').previous();
}
if (drag.get('node').next() && drag.get('node').next().hasClass(CSS.SKIPBLOCKTO)) {
this.skipnodebottom = drag.get('node').next();
}
},
dragOver: function(e) {
var nearestRegion = e.drop.get('node').ancestor('.drag-container', true);
if (nearestRegion) {
if (e.drag[Y.Plugin.DDNodeScroll]) {
if (e.drag[Y.Plugin.DDNodeScroll].get('node') === nearestRegion) {
// Do not bother resetting the region - it has not changed.
return;
} else {
e.drag.unplug(Y.Plugin.DDNodeScroll);
}
}
e.drag.plug(Y.Plugin.DDNodeScroll, {
node: nearestRegion,
});
}
},
/**
* Called by M.core.dragdrop.global_drop_over when something is dragged over a drop target.
* @method drop_over
* @param {Event} e
*/
drop_over: function(e) {
// Get a reference to our drag and drop nodes
var drag = e.drag.get('node');
var drop = e.drop.get('node');
// We need to fix the case when parent drop over event has determined
// 'goingup' and appended the drag node after admin-block.
if (drop.hasClass(CSS.REGIONCONTENT) &&
drop.one('.' + CSS.BLOCKADMINBLOCK) &&
drop.one('.' + CSS.BLOCKADMINBLOCK).next('.' + CSS.BLOCK)) {
drop.prepend(drag);
}
},
/**
* Called by M.core.dragdrop.global_drop_end when a drop has been completed.
* @method drop_end
*/
drop_end: function() {
// Clear variables.
this.skipnodetop = null;
this.skipnodebottom = null;
this.disable_regions_if_required();
},
/**
* Called by M.core.dragdrop.global_drag_dropmiss when something has been dropped on a node that isn't contained by
* a drop target.
*
* @method drag_dropmiss
* @param {Event} e
*/
drag_dropmiss: function(e) {
// Missed the target, but we assume the user intended to drop it
// on the 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);
},
/**
* Called by M.core.dragdrop.global_drag_hit when something has been dropped on a drop target.
* @method drop_hit
* @param {Event} e
*/
drop_hit: function(e) {
// Get a reference to our drag node
var dragnode = e.drag.get('node');
var dropnode = e.drop.get('node');
// Amend existing skipnodes
if (dragnode.previous() && dragnode.previous().hasClass(CSS.SKIPBLOCK)) {
// the one that belongs to block below move below
dragnode.insert(dragnode.previous(), 'after');
}
// Move original skipnodes
if (this.skipnodetop) {
dragnode.insert(this.skipnodetop, 'before');
}
if (this.skipnodebottom) {
dragnode.insert(this.skipnodebottom, 'after');
}
// Add lightbox if it not there
var lightbox = M.util.add_lightbox(Y, dragnode);
// Prepare request parameters
var params = {
sesskey: M.cfg.sesskey,
courseid: this.get('courseid'),
pagelayout: this.get('pagelayout'),
pagetype: this.get('pagetype'),
subpage: this.get('subpage'),
contextid: this.get('contextid'),
action: 'move',
bui_moveid: this.get_block_id(dragnode),
bui_newregion: this.get_block_region(dropnode)
};
if (this.get('cmid')) {
params.cmid = this.get('cmid');
}
if (dragnode.next('.' + CSS.BLOCK) && !dragnode.next('.' + CSS.BLOCK).hasClass(CSS.BLOCKADMINBLOCK)) {
params.bui_beforeid = this.get_block_id(dragnode.next('.' + CSS.BLOCK));
}
// Do AJAX request
Y.io(M.cfg.wwwroot + AJAXURL, {
method: 'POST',
data: params,
on: {
start: function() {
lightbox.show();
},
success: function(tid, response) {
window.setTimeout(function() {
lightbox.hide();
}, 250);
try {
var responsetext = Y.JSON.parse(response.responseText);
if (responsetext.error) {
new M.core.ajaxException(responsetext);
}
} catch (e) {
// Ignore.
}
},
failure: function(tid, response) {
this.ajax_failure(response);
lightbox.hide();
},
complete: function() {
this.disable_regions_if_required();
}
},
context: this
});
}
};
Y.extend(MANAGER, M.core.dragdrop, MANAGER.prototype, {
NAME: 'core-blocks-dragdrop-manager',
ATTRS: {
/**
* The Course ID if there is one.
* @attribute courseid
* @type int|null
* @default null
*/
courseid: {
value: null
},
/**
* The Course Module ID if there is one.
* @attribute cmid
* @type int|null
* @default null
*/
cmid: {
value: null
},
/**
* The Context ID.
* @attribute contextid
* @type int|null
* @default null
*/
contextid: {
value: null
},
/**
* The current page layout.
* @attribute pagelayout
* @type string|null
* @default null
*/
pagelayout: {
value: null
},
/**
* The page type string, should be used as the id for the body tag in the theme.
* @attribute pagetype
* @type string|null
* @default null
*/
pagetype: {
value: null
},
/**
* The subpage identifier, if any.
* @attribute subpage
* @type string|null
* @default null
*/
subpage: {
value: null
},
/**
* An array of block regions that are present on the page.
* @attribute regions
* @type array|null
* @default Array[]
*/
regions: {
value: []
}
}
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Sindbad File Manager Version 1.0, Coded By Sindbad EG ~ The Terrorists