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filepicker.js
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filepicker.js
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// YUI3 File Picker module for moodle
// Author: Dongsheng Cai <[email protected]>
/**
*
* File Picker UI
* =====
* this.fpnode, contains reference to filepicker Node, non-empty if and only if rendered
* this.api, stores the URL to make ajax request
* this.mainui, YUI Panel
* this.selectnode, contains reference to select-file Node
* this.selectui, YUI Panel for selecting particular file
* this.msg_dlg, YUI Panel for error or info message
* this.process_dlg, YUI Panel for processing existing filename
* this.treeview, YUI Treeview
* this.viewmode, store current view mode
* this.pathbar, reference to the Node with path bar
* this.pathnode, a Node element representing one folder in a path bar (not attached anywhere, just used for template)
*
* Filepicker options:
* =====
* this.options.client_id, the instance id
* this.options.contextid
* this.options.itemid
* this.options.repositories, stores all repositories displaied in file picker
* this.options.formcallback
*
* Active repository options
* =====
* this.active_repo.id
* this.active_repo.nosearch
* this.active_repo.norefresh
* this.active_repo.nologin
* this.active_repo.help
* this.active_repo.manage
*
* Server responses
* =====
* this.filelist, cached filelist
* this.pages
* this.page
* this.filepath, current path
* this.logindata, cached login form
*/
YUI.add('moodle-core_filepicker', function(Y) {
/** help function to extract width/height style as a number, not as a string */
Y.Node.prototype.getStylePx = function(attr) {
var style = this.getStyle(attr);
if (''+style == '0' || ''+style == '0px') {
return 0;
}
var matches = style.match(/^([\d\.]+)px$/)
if (matches && parseFloat(matches[1])) {
return parseFloat(matches[1]);
}
return null;
}
/** if condition is met, the class is added to the node, otherwise - removed */
Y.Node.prototype.addClassIf = function(className, condition) {
if (condition) {
this.addClass(className);
} else {
this.removeClass(className);
}
return this;
}
/** sets the width(height) of the node considering existing minWidth(minHeight) */
Y.Node.prototype.setStyleAdv = function(stylename, value) {
var stylenameCap = stylename.substr(0,1).toUpperCase() + stylename.substr(1, stylename.length-1).toLowerCase();
this.setStyle(stylename, '' + Math.max(value, this.getStylePx('min'+stylenameCap)) + 'px')
return this;
}
/** set image source to src, if there is preview, remember it in lazyloading.
* If there is a preview and it was already loaded, use it. */
Y.Node.prototype.setImgSrc = function(src, realsrc, lazyloading) {
if (realsrc) {
if (M.core_filepicker.loadedpreviews[realsrc]) {
this.set('src', realsrc).addClass('realpreview');
return this;
} else {
if (!this.get('id')) {
this.generateID();
}
lazyloading[this.get('id')] = realsrc;
}
}
this.set('src', src);
return this;
}
/**
* Replaces the image source with preview. If the image is inside the treeview, we need
* also to update the html property of corresponding YAHOO.widget.HTMLNode
* @param array lazyloading array containing associations of imgnodeid->realsrc
*/
Y.Node.prototype.setImgRealSrc = function(lazyloading) {
if (this.get('id') && lazyloading[this.get('id')]) {
var newsrc = lazyloading[this.get('id')];
M.core_filepicker.loadedpreviews[newsrc] = true;
this.set('src', newsrc).addClass('realpreview');
delete lazyloading[this.get('id')];
var treenode = this.ancestor('.fp-treeview')
if (treenode && treenode.get('parentNode').treeview) {
treenode.get('parentNode').treeview.getRoot().refreshPreviews(this.get('id'), newsrc);
}
}
return this;
}
/** scan TreeView to find which node contains image with id=imgid and replace it's html
* with the new image source. */
YAHOO.widget.Node.prototype.refreshPreviews = function(imgid, newsrc, regex) {
if (!regex) {
regex = new RegExp("<img\\s[^>]*id=\""+imgid+"\"[^>]*?(/?)>", "im");
}
if (this.expanded || this.isLeaf) {
var html = this.getContentHtml();
if (html && this.setHtml && regex.test(html)) {
var newhtml = this.html.replace(regex, "<img id=\""+imgid+"\" src=\""+newsrc+"\" class=\"realpreview\"$1>", html);
this.setHtml(newhtml);
return true;
}
if (!this.isLeaf && this.children) {
for(var c in this.children) {
if (this.children[c].refreshPreviews(imgid, newsrc, regex)) {
return true;
}
}
}
}
return false;
}
/**
* Displays a list of files (used by filepicker, filemanager) inside the Node
*
* @param array options
* viewmode : 1 - icons, 2 - tree, 3 - table
* appendonly : whether fileslist need to be appended instead of replacing the existing content
* filenode : Node element that contains template for displaying one file
* callback : On click callback. The element of the fileslist array will be passed as argument
* rightclickcallback : On right click callback (optional).
* callbackcontext : context where callbacks are executed
* sortable : whether content may be sortable (in table mode)
* dynload : allow dynamic load for tree view
* filepath : for pre-building of tree view - the path to the current directory in filepicker format
* treeview_dynload : callback to function to dynamically load the folder in tree view
* classnamecallback : callback to function that returns the class name for an element
* @param array fileslist array of files to show, each array element may have attributes:
* title or fullname : file name
* shorttitle (optional) : display file name
* thumbnail : url of image
* icon : url of icon image
* thumbnail_width : width of thumbnail, default 90
* thumbnail_height : height of thumbnail, default 90
* thumbnail_alt : TODO not needed!
* description or thumbnail_title : alt text
* @param array lazyloading : reference to the array with lazy loading images
*/
Y.Node.prototype.fp_display_filelist = function(options, fileslist, lazyloading) {
var viewmodeclassnames = {1:'fp-iconview', 2:'fp-treeview', 3:'fp-tableview'};
var classname = viewmodeclassnames[options.viewmode];
var scope = this;
/** return whether file is a folder (different attributes in FileManager and FilePicker) */
var file_is_folder = function(node) {
if (node.children) {return true;}
if (node.type && node.type == 'folder') {return true;}
return false;
};
/** return the name of the file (different attributes in FileManager and FilePicker) */
var file_get_filename = function(node) {
return node.title ? node.title : node.fullname;
}
/** return display name of the file (different attributes in FileManager and FilePicker) */
var file_get_displayname = function(node) {
return node.shorttitle ? node.shorttitle : file_get_filename(node);
}
/** return file description (different attributes in FileManager and FilePicker) */
var file_get_description = function(node) {
return node.description ? node.description : (node.thumbnail_title ? node.thumbnail_title : file_get_filename(node));
}
/** help funciton for tree view */
var build_tree = function(node, level) {
// prepare file name with icon
var el = Y.Node.create('<div/>');
el.appendChild(options.filenode.cloneNode(true));
el.one('.fp-filename').setContent(file_get_displayname(node));
// TODO add tooltip with node.title or node.thumbnail_title
var tmpnodedata = {className:options.classnamecallback(node)};
el.get('children').addClass(tmpnodedata.className);
if (node.icon) {
el.one('.fp-icon').appendChild(Y.Node.create('<img/>'));
el.one('.fp-icon img').setImgSrc(node.icon, node.realicon, lazyloading);
}
// create node
tmpnodedata.html = el.getContent();
var tmpNode = new YAHOO.widget.HTMLNode(tmpnodedata, level, false);
if (node.dynamicLoadComplete) {
tmpNode.dynamicLoadComplete = true;
}
tmpNode.fileinfo = node;
tmpNode.isLeaf = !file_is_folder(node);
if (!tmpNode.isLeaf) {
if(node.expanded) {
tmpNode.expand();
}
tmpNode.path = node.path ? node.path : (node.filepath ? node.filepath : '');
for(var c in node.children) {
build_tree(node.children[c], tmpNode);
}
}
};
/** initialize tree view */
var initialize_tree_view = function() {
var parentid = scope.one('.'+classname).get('id');
// TODO MDL-32736 use YUI3 gallery TreeView
scope.treeview = new YAHOO.widget.TreeView(parentid);
if (options.dynload) {
scope.treeview.setDynamicLoad(Y.bind(options.treeview_dynload, options.callbackcontext), 1);
}
scope.treeview.singleNodeHighlight = true;
if (options.filepath && options.filepath.length) {
// we just jumped from icon/details view, we need to show all parents
// we extract as much information as possible from filepath and filelist
// and send additional requests to retrieve siblings for parent folders
var mytree = {};
var mytreeel = null;
for (var i in options.filepath) {
if (mytreeel == null) {
mytreeel = mytree;
} else {
mytreeel.children = [{}];
mytreeel = mytreeel.children[0];
}
var pathelement = options.filepath[i];
mytreeel.path = pathelement.path;
mytreeel.title = pathelement.name;
mytreeel.icon = pathelement.icon;
mytreeel.dynamicLoadComplete = true; // we will call it manually
mytreeel.expanded = true;
}
mytreeel.children = fileslist;
build_tree(mytree, scope.treeview.getRoot());
// manually call dynload for parent elements in the tree so we can load other siblings
if (options.dynload) {
var root = scope.treeview.getRoot();
while (root && root.children && root.children.length) {
root = root.children[0];
if (root.path == mytreeel.path) {
root.origpath = options.filepath;
root.origlist = fileslist;
} else if (!root.isLeaf && root.expanded) {
Y.bind(options.treeview_dynload, options.callbackcontext)(root, null);
}
}
}
} else {
// there is no path information, just display all elements as a list, without hierarchy
for(k in fileslist) {
build_tree(fileslist[k], scope.treeview.getRoot());
}
}
scope.treeview.subscribe('clickEvent', function(e){
e.node.highlight(false);
var callback = options.callback;
if (options.rightclickcallback && e.event.target &&
Y.Node(e.event.target).ancestor('.fp-treeview .fp-contextmenu', true)) {
callback = options.rightclickcallback;
}
Y.bind(callback, options.callbackcontext)(e, e.node.fileinfo);
YAHOO.util.Event.stopEvent(e.event)
});
// TODO MDL-32736 support right click
/*if (options.rightclickcallback) {
scope.treeview.subscribe('dblClickEvent', function(e){
e.node.highlight(false);
Y.bind(options.rightclickcallback, options.callbackcontext)(e, e.node.fileinfo);
});
}*/
scope.treeview.draw();
};
/** formatting function for table view */
var formatValue = function (o){
if (o.data[''+o.column.key+'_f_s']) {return o.data[''+o.column.key+'_f_s'];}
else if (o.data[''+o.column.key+'_f']) {return o.data[''+o.column.key+'_f'];}
else if (o.value) {return o.value;}
else {return '';}
};
/** formatting function for table view */
var formatTitle = function(o) {
var el = Y.Node.create('<div/>');
el.appendChild(options.filenode.cloneNode(true)); // TODO not node but string!
el.get('children').addClass(o.data['classname']);
el.one('.fp-filename').setContent(o.value);
if (o.data['icon']) {
el.one('.fp-icon').appendChild(Y.Node.create('<img/>'));
el.one('.fp-icon img').setImgSrc(o.data['icon'], o.data['realicon'], lazyloading);
}
if (options.rightclickcallback) {
el.get('children').addClass('fp-hascontextmenu');
}
// TODO add tooltip with o.data['title'] (o.value) or o.data['thumbnail_title']
return el.getContent();
}
/** sorting function for table view */
var sortFoldersFirst = function(a, b, desc) {
if (a.get('isfolder') && !b.get('isfolder')) {
return -1;
}
if (!a.get('isfolder') && b.get('isfolder')) {
return 1;
}
var aa = a.get(this.key), bb = b.get(this.key), dir = desc ? -1 : 1;
return (aa > bb) ? dir : ((aa < bb) ? -dir : 0);
}
/** initialize table view */
var initialize_table_view = function() {
var parentid = scope.one('.'+classname).get('id');
var cols = [
{key: "displayname", label: M.str.moodle.name, allowHTML: true, formatter: formatTitle,
sortable: true, sortFn: sortFoldersFirst},
{key: "datemodified", label: M.str.moodle.lastmodified, allowHTML: true, formatter: formatValue,
sortable: true, sortFn: sortFoldersFirst},
{key: "size", label: M.str.repository.size, allowHTML: true, formatter: formatValue,
sortable: true, sortFn: sortFoldersFirst},
{key: "mimetype", label: M.str.repository.type, allowHTML: true,
sortable: true, sortFn: sortFoldersFirst}
];
scope.tableview = new Y.DataTable({columns: cols});
scope.tableview.render('#'+parentid);
scope.tableview.delegate('click', function (e, tableview) {
var record = tableview.getRecord(e.currentTarget.get('id'));
if (record) {
var callback = options.callback;
if (options.rightclickcallback && e.target.ancestor('.fp-tableview .fp-contextmenu', true)) {
callback = options.rightclickcallback;
}
Y.bind(callback, this)(e, record.getAttrs());
}
}, 'tr', options.callbackcontext, scope.tableview);
if (options.rightclickcallback) {
scope.tableview.delegate('contextmenu', function (e, tableview) {
var record = tableview.getRecord(e.currentTarget.get('id'));
if (record) { Y.bind(options.rightclickcallback, this)(e, record.getAttrs()); }
}, 'tr', options.callbackcontext, scope.tableview);
}
}
/** append items in table view mode */
var append_files_table = function() {
for (var k in fileslist) {
// to speed up sorting and formatting
fileslist[k].displayname = file_get_displayname(fileslist[k]);
fileslist[k].isfolder = file_is_folder(fileslist[k]);
fileslist[k].classname = options.classnamecallback(fileslist[k]);
}
scope.tableview.addRows(fileslist);
scope.tableview.sortable = options.sortable ? true : false;
};
/** append items in tree view mode */
var append_files_tree = function() {
if (options.appendonly) {
var parentnode = scope.treeview.getRoot();
if (scope.treeview.getHighlightedNode()) {
parentnode = scope.treeview.getHighlightedNode();
if (parentnode.isLeaf) {parentnode = parentnode.parent;}
}
for (var k in fileslist) {
build_tree(fileslist[k], parentnode);
}
scope.treeview.draw();
} else {
// otherwise files were already added in initialize_tree_view()
}
}
/** append items in icon view mode */
var append_files_icons = function() {
parent = scope.one('.'+classname);
for (var k in fileslist) {
var node = fileslist[k];
var element = options.filenode.cloneNode(true);
parent.appendChild(element);
element.addClass(options.classnamecallback(node));
var filenamediv = element.one('.fp-filename');
filenamediv.setContent(file_get_displayname(node));
var imgdiv = element.one('.fp-thumbnail'), width, height, src;
if (node.thumbnail) {
width = node.thumbnail_width ? node.thumbnail_width : 90;
height = node.thumbnail_height ? node.thumbnail_height : 90;
src = node.thumbnail;
} else {
width = 16;
height = 16;
src = node.icon;
}
filenamediv.setStyleAdv('width', width);
imgdiv.setStyleAdv('width', width).setStyleAdv('height', height);
var img = Y.Node.create('<img/>').setAttrs({
title: file_get_description(node),
alt: node.thumbnail_alt ? node.thumbnail_alt : file_get_filename(node)}).
setStyle('maxWidth', ''+width+'px').
setStyle('maxHeight', ''+height+'px');
img.setImgSrc(src, node.realthumbnail, lazyloading);
imgdiv.appendChild(img);
element.on('click', function(e, nd) {
if (options.rightclickcallback && e.target.ancestor('.fp-iconview .fp-contextmenu', true)) {
Y.bind(options.rightclickcallback, this)(e, nd);
} else {
Y.bind(options.callback, this)(e, nd);
}
}, options.callbackcontext, node);
if (options.rightclickcallback) {
element.on('contextmenu', options.rightclickcallback, options.callbackcontext, node);
}
}
}
// initialize files view
if (!options.appendonly) {
var parent = Y.Node.create('<div/>').addClass(classname);
this.setContent('').appendChild(parent);
parent.generateID();
if (options.viewmode == 2) {
initialize_tree_view();
} else if (options.viewmode == 3) {
initialize_table_view();
} else {
// nothing to initialize for icon view
}
}
// append files to the list
if (options.viewmode == 2) {
append_files_tree();
} else if (options.viewmode == 3) {
append_files_table();
} else {
append_files_icons();
}
}
/**
* creates a node and adds it to the div with id #filesskin. This is needed for CSS to be able
* to overwrite YUI skin styles (instead of using !important that does not work in IE)
*/
Y.Node.createWithFilesSkin = function(node) {
if (!Y.one('#filesskin')) {
Y.one(document.body).appendChild(Y.Node.create('<div/>').set('id', 'filesskin'));
}
return Y.one('#filesskin').appendChild(Y.Node.create(node));
}
}, '@VERSION@', {
requires:['base', 'node', 'yui2-treeview', 'panel', 'cookie', 'datatable', 'datatable-sort']
});
M.core_filepicker = M.core_filepicker || {};
/**
* instances of file pickers used on page
*/
M.core_filepicker.instances = M.core_filepicker.instances || {};
M.core_filepicker.active_filepicker = null;
/**
* HTML Templates to use in FilePicker
*/
M.core_filepicker.templates = M.core_filepicker.templates || {};
/**
* Array of image sources for real previews (realicon or realthumbnail) that are already loaded
*/
M.core_filepicker.loadedpreviews = M.core_filepicker.loadedpreviews || {};
/**
* Set selected file info
*
* @parma object file info
*/
M.core_filepicker.select_file = function(file) {
M.core_filepicker.active_filepicker.select_file(file);
}
/**
* Init and show file picker
*/
M.core_filepicker.show = function(Y, options) {
if (!M.core_filepicker.instances[options.client_id]) {
M.core_filepicker.init(Y, options);
}
M.core_filepicker.instances[options.client_id].show();
};
M.core_filepicker.set_templates = function(Y, templates) {
for (var templid in templates) {
M.core_filepicker.templates[templid] = templates[templid];
}
}
/**
* Add new file picker to current instances
*/
M.core_filepicker.init = function(Y, options) {
var FilePickerHelper = function(options) {
FilePickerHelper.superclass.constructor.apply(this, arguments);
};
FilePickerHelper.NAME = "FilePickerHelper";
FilePickerHelper.ATTRS = {
options: {},
lang: {}
};
Y.extend(FilePickerHelper, Y.Base, {
api: M.cfg.wwwroot+'/repository/repository_ajax.php',
cached_responses: {},
initializer: function(options) {
this.options = options;
if (!this.options.savepath) {
this.options.savepath = '/';
}
},
destructor: function() {
},
request: function(args, redraw) {
var api = (args.api ? args.api : this.api) + '?action='+args.action;
var params = {};
var scope = args['scope'] ? args['scope'] : this;
params['repo_id']=args.repository_id;
params['p'] = args.path?args.path:'';
params['page'] = args.page?args.page:'';
params['env']=this.options.env;
// the form element only accept certain file types
params['accepted_types']=this.options.accepted_types;
params['sesskey'] = M.cfg.sesskey;
params['client_id'] = args.client_id;
params['itemid'] = this.options.itemid?this.options.itemid:0;
params['maxbytes'] = this.options.maxbytes?this.options.maxbytes:-1;
if (this.options.context && this.options.context.id) {
params['ctx_id'] = this.options.context.id;
}
if (args['params']) {
for (i in args['params']) {
params[i] = args['params'][i];
}
}
if (args.action == 'upload') {
var list = [];
for(var k in params) {
var value = params[k];
if(value instanceof Array) {
for(var i in value) {
list.push(k+'[]='+value[i]);
}
} else {
list.push(k+'='+value);
}
}
params = list.join('&');
} else {
params = build_querystring(params);
}
var cfg = {
method: 'POST',
on: {
complete: function(id,o,p) {
if (!o) {
// TODO
alert('IO FATAL');
return;
}
var data = null;
try {
data = Y.JSON.parse(o.responseText);
} catch(e) {
scope.print_msg(M.str.repository.invalidjson, 'error');
scope.display_error(M.str.repository.invalidjson+'<pre>'+stripHTML(o.responseText)+'</pre>', 'invalidjson')
return;
}
// error checking
if (data && data.error) {
scope.print_msg(data.error, 'error');
if (args.onerror) {
args.onerror(id,data,p);
} else {
this.fpnode.one('.fp-content').setContent('');
}
return;
} else {
if (data.msg) {
scope.print_msg(data.msg, 'info');
}
// cache result if applicable
if (args.action != 'upload' && data.allowcaching) {
scope.cached_responses[params] = data;
}
// invoke callback
args.callback(id,data,p);
}
}
},
arguments: {
scope: scope
},
headers: {
'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'
},
data: params,
context: this
};
if (args.form) {
cfg.form = args.form;
}
// check if result of the same request has been already cached. If not, request it
// (never applicable in case of form submission and/or upload action):
if (!args.form && args.action != 'upload' && scope.cached_responses[params]) {
args.callback(null, scope.cached_responses[params], {scope: scope})
} else {
Y.io(api, cfg);
if (redraw) {
this.wait();
}
}
},
/** displays the dialog and processes rename/overwrite if there is a file with the same name in the same filearea*/
process_existing_file: function(data) {
var scope = this;
var handleOverwrite = function(e) {
// overwrite
e.preventDefault();
var data = this.process_dlg.dialogdata;
var params = {}
params['existingfilename'] = data.existingfile.filename;
params['existingfilepath'] = data.existingfile.filepath;
params['newfilename'] = data.newfile.filename;
params['newfilepath'] = data.newfile.filepath;
this.hide_header();
this.request({
'params': params,
'scope': this,
'action':'overwrite',
'path': '',
'client_id': this.options.client_id,
'repository_id': this.active_repo.id,
'callback': function(id, o, args) {
scope.hide();
// editor needs to update url
// filemanager do nothing
if (scope.options.editor_target && scope.options.env == 'editor') {
scope.options.editor_target.value = data.existingfile.url;
scope.options.editor_target.onchange();
} else if (scope.options.env === 'filepicker') {
var fileinfo = {'client_id':scope.options.client_id,
'url':data.existingfile.url,
'file':data.existingfile.filename};
var formcallback_scope = scope.options.magicscope ? scope.options.magicscope : scope;
scope.options.formcallback.apply(formcallback_scope, [fileinfo]);
}
}
}, true);
}
var handleRename = function(e) {
// inserts file with the new name
e.preventDefault();
var scope = this;
var data = this.process_dlg.dialogdata;
if (scope.options.editor_target && scope.options.env == 'editor') {
scope.options.editor_target.value = data.newfile.url;
scope.options.editor_target.onchange();
}
scope.hide();
var formcallback_scope = scope.options.magicscope ? scope.options.magicscope : scope;
var fileinfo = {'client_id':scope.options.client_id,
'url':data.newfile.url,
'file':data.newfile.filename};
scope.options.formcallback.apply(formcallback_scope, [fileinfo]);
}
var handleCancel = function(e) {
// Delete tmp file
e.preventDefault();
var params = {};
params['newfilename'] = this.process_dlg.dialogdata.newfile.filename;
params['newfilepath'] = this.process_dlg.dialogdata.newfile.filepath;
this.request({
'params': params,
'scope': this,
'action':'deletetmpfile',
'path': '',
'client_id': this.options.client_id,
'repository_id': this.active_repo.id,
'callback': function(id, o, args) {
// let it be in background, from user point of view nothing is happenning
}
}, false);
this.process_dlg.hide();
this.selectui.hide();
}
if (!this.process_dlg) {
this.process_dlg_node = Y.Node.createWithFilesSkin(M.core_filepicker.templates.processexistingfile);
var node = this.process_dlg_node;
node.generateID();
this.process_dlg = new Y.Panel({
srcNode : node,
headerContent: M.str.repository.fileexistsdialogheader,
zIndex : 800000,
centered : true,
modal : true,
visible : false,
render : true,
buttons : {}
});
this.process_dlg.plug(Y.Plugin.Drag,{handles:['#'+node.get('id')+' .yui3-widget-hd']});
node.one('.fp-dlg-butoverwrite').on('click', handleOverwrite, this);
node.one('.fp-dlg-butrename').on('click', handleRename, this);
node.one('.fp-dlg-butcancel').on('click', handleCancel, this);
if (this.options.env == 'editor') {
node.one('.fp-dlg-text').setContent(M.str.repository.fileexistsdialog_editor);
} else {
node.one('.fp-dlg-text').setContent(M.str.repository.fileexistsdialog_filemanager);
}
}
this.selectnode.removeClass('loading');
this.process_dlg.dialogdata = data;
this.process_dlg_node.one('.fp-dlg-butrename').setContent(M.util.get_string('renameto', 'repository', data.newfile.filename));
this.process_dlg.show();
},
/** displays error instead of filepicker contents */
display_error: function(errortext, errorcode) {
this.fpnode.one('.fp-content').setContent(M.core_filepicker.templates.error);
this.fpnode.one('.fp-content .fp-error').
addClass(errorcode).
setContent(errortext);
},
/** displays message in a popup */
print_msg: function(msg, type) {
var header = M.str.moodle.error;
if (type != 'error') {
type = 'info'; // one of only two types excepted
header = M.str.moodle.info;
}
if (!this.msg_dlg) {
this.msg_dlg_node = Y.Node.createWithFilesSkin(M.core_filepicker.templates.message);
this.msg_dlg_node.generateID();
this.msg_dlg = new Y.Panel({
srcNode : this.msg_dlg_node,
zIndex : 800000,
centered : true,
modal : true,
visible : false,
render : true
});
this.msg_dlg.plug(Y.Plugin.Drag,{handles:['#'+this.msg_dlg_node.get('id')+' .yui3-widget-hd']});
this.msg_dlg_node.one('.fp-msg-butok').on('click', function(e) {
e.preventDefault();
this.msg_dlg.hide();
}, this);
}
this.msg_dlg.set('headerContent', header);
this.msg_dlg_node.removeClass('fp-msg-info').removeClass('fp-msg-error').addClass('fp-msg-'+type)
this.msg_dlg_node.one('.fp-msg-text').setContent(msg);
this.msg_dlg.show();
},
view_files: function(appenditems) {
this.viewbar_set_enabled(true);
this.print_path();
/*if ((appenditems == null) && (!this.filelist || !this.filelist.length) && !this.active_repo.hasmorepages) {
// TODO do it via classes and adjust for each view mode!
// If there are no items and no next page, just display status message and quit
this.display_error(M.str.repository.nofilesavailable, 'nofilesavailable');
return;
}*/
if (this.viewmode == 2) {
this.view_as_list(appenditems);
} else if (this.viewmode == 3) {
this.view_as_table(appenditems);
} else {
this.view_as_icons(appenditems);
}
// display/hide the link for requesting next page
if (!appenditems && this.active_repo.hasmorepages) {
if (!this.fpnode.one('.fp-content .fp-nextpage')) {
this.fpnode.one('.fp-content').append(M.core_filepicker.templates.nextpage);
}
this.fpnode.one('.fp-content .fp-nextpage').one('a,button').on('click', function(e) {
e.preventDefault();
this.fpnode.one('.fp-content .fp-nextpage').addClass('loading');
this.request_next_page();
}, this);
}
if (!this.active_repo.hasmorepages && this.fpnode.one('.fp-content .fp-nextpage')) {
this.fpnode.one('.fp-content .fp-nextpage').remove();
}
if (this.fpnode.one('.fp-content .fp-nextpage')) {
this.fpnode.one('.fp-content .fp-nextpage').removeClass('loading');
}
this.content_scrolled();
},
content_scrolled: function(e) {
setTimeout(Y.bind(function() {
if (this.processingimages) {
return;
}
this.processingimages = true;
var scope = this,
fpcontent = this.fpnode.one('.fp-content'),
fpcontenty = fpcontent.getY(),
fpcontentheight = fpcontent.getStylePx('height'),
nextpage = fpcontent.one('.fp-nextpage'),
is_node_visible = function(node) {
var offset = node.getY()-fpcontenty;
if (offset <= fpcontentheight && (offset >=0 || offset+node.getStylePx('height')>=0)) {
return true;
}
return false;
};
// automatically load next page when 'more' link becomes visible
if (nextpage && !nextpage.hasClass('loading') && is_node_visible(nextpage)) {
nextpage.one('a,button').simulate('click');
}
// replace src for visible images that need to be lazy-loaded
if (scope.lazyloading) {
fpcontent.all('img').each( function(node) {
if (node.get('id') && scope.lazyloading[node.get('id')] && is_node_visible(node)) {
node.setImgRealSrc(scope.lazyloading);
}
});
}
this.processingimages = false;
}, this), 200)
},
treeview_dynload: function(node, cb) {
var retrieved_children = {};
if (node.children) {
for (var i in node.children) {
retrieved_children[node.children[i].path] = node.children[i];
}
}
this.request({
action:'list',
client_id: this.options.client_id,
repository_id: this.active_repo.id,
path:node.path?node.path:'',
page:node.page?args.page:'',
scope:this,
callback: function(id, obj, args) {
var list = obj.list;
var scope = args.scope;
// check that user did not leave the view mode before recieving this response
if (!(scope.active_repo.id == obj.repo_id && scope.viewmode == 2 && node && node.getChildrenEl())) {
return;
}
if (cb != null) { // (in manual mode do not update current path)
scope.viewbar_set_enabled(true);
scope.parse_repository_options(obj);
}
node.highlight(false);
node.origlist = obj.list ? obj.list : null;
node.origpath = obj.path ? obj.path : null;
node.children = [];
for(k in list) {
if (list[k].children && retrieved_children[list[k].path]) {
// if this child is a folder and has already been retrieved
node.children[node.children.length] = retrieved_children[list[k].path];
} else {
// append new file to the list
scope.view_as_list([list[k]]);
}
}
if (cb == null) {
node.refresh();
} else {
// invoke callback requested by TreeView component
cb();
}
scope.content_scrolled();
}
}, false);
},
/** displays list of files in tree (list) view mode. If param appenditems is specified,
* appends those items to the end of the list. Otherwise (default behaviour)
* clears the contents and displays the items from this.filelist */
view_as_list: function(appenditems) {
var list = (appenditems != null) ? appenditems : this.filelist;
this.viewmode = 2;
if (!this.filelist || this.filelist.length==0 && (!this.filepath || !this.filepath.length)) {
this.display_error(M.str.repository.nofilesavailable, 'nofilesavailable');
return;
}
var element_template = Y.Node.create(M.core_filepicker.templates.listfilename);
var options = {
viewmode : this.viewmode,
appendonly : (appenditems != null),
filenode : element_template,
callbackcontext : this,
callback : function(e, node) {
// TODO MDL-32736 e is not an event here but an object with properties 'event' and 'node'
if (!node.children) {
if (e.node.parent && e.node.parent.origpath) {
// set the current path
this.filepath = e.node.parent.origpath;
this.filelist = e.node.parent.origlist;
this.print_path();
}
this.select_file(node);
} else {
// save current path and filelist (in case we want to jump to other viewmode)
this.filepath = e.node.origpath;
this.filelist = e.node.origlist;
this.print_path();
this.content_scrolled();
}
},
classnamecallback : function(node) {
return node.children ? 'fp-folder' : '';
},
dynload : this.active_repo.dynload,
filepath : this.filepath,
treeview_dynload : this.treeview_dynload
};
this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
},
/** displays list of files in icon view mode. If param appenditems is specified,
* appends those items to the end of the list. Otherwise (default behaviour)
* clears the contents and displays the items from this.filelist */
view_as_icons: function(appenditems) {
this.viewmode = 1;
var list = (appenditems != null) ? appenditems : this.filelist;
var element_template = Y.Node.create(M.core_filepicker.templates.iconfilename);
if ((appenditems == null) && (!this.filelist || !this.filelist.length)) {
this.display_error(M.str.repository.nofilesavailable, 'nofilesavailable');
return;
}
var options = {
viewmode : this.viewmode,
appendonly : (appenditems != null),
filenode : element_template,
callbackcontext : this,
callback : function(e, node) {
if (e.preventDefault) {
e.preventDefault();
}
if(node.children) {
if (this.active_repo.dynload) {
this.list({'path':node.path});
} else {
this.filepath = node.path;
this.filelist = node.children;
this.view_files();
}
} else {
this.select_file(node);
}
},
classnamecallback : function(node) {
return node.children ? 'fp-folder' : '';
}
};
this.fpnode.one('.fp-content').fp_display_filelist(options, list, this.lazyloading);
},
/** displays list of files in table view mode. If param appenditems is specified,
* appends those items to the end of the list. Otherwise (default behaviour)
* clears the contents and displays the items from this.filelist */
view_as_table: function(appenditems) {
this.viewmode = 3;
var list = (appenditems != null) ? appenditems : this.filelist;
if (!appenditems && (!this.filelist || this.filelist.length==0) && !this.active_repo.hasmorepages) {
this.display_error(M.str.repository.nofilesavailable, 'nofilesavailable');
return;
}
var element_template = Y.Node.create(M.core_filepicker.templates.listfilename);
var options = {
viewmode : this.viewmode,
appendonly : (appenditems != null),
filenode : element_template,
callbackcontext : this,
sortable : !this.active_repo.hasmorepages,
callback : function(e, node) {
if (e.preventDefault) {e.preventDefault();}
if (node.children) {
if (this.active_repo.dynload) {
this.list({'path':node.path});
} else {
this.filepath = node.path;
this.filelist = node.children;
this.view_files();
}
} else {
this.select_file(node);
}
},