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ProjectEditorView.js
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ProjectEditorView.js
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define(['underscore',
'jquery',
'backbone',
'models/project/ProjectModel',
"collections/Filters",
'views/EditorView',
"views/project/editor/ProjEditorSectionsView",
"text!templates/loading.html",
"text!templates/project/editor/projectEditor.html"
],
function(_, $, Backbone, Project, Filters, EditorView, ProjEditorSectionsView, LoadingTemplate, Template){
/**
* @class ProjectEditorView
*/
var ProjectEditorView = EditorView.extend({
/**
* The type of View this is
* @type {string}
*/
type: "ProjectEditor",
/**
* The short name OR pid for the project
* @type {string}
*/
projectIdentifier: "",
/**
* The ProjectModel that is being edited
* @type {Project}
*/
model: undefined,
/**
* The currently active editor section. e.g. Data, Metrics, Settings, etc.
* @type {string}
*/
activeSection: "",
/**
* References to templates for this view. HTML files are converted to Underscore.js templates
*/
template: _.template(Template),
loadingTemplate: _.template(LoadingTemplate),
/**
* A jQuery selector for the element that the ProjEditorSectionsView should be inserted into
* @type {string}
*/
projEditSectionsContainer: ".proj-editor-sections-container",
/**
* A temporary name to use for projects when they are first created but don't have a label yet.
* This name should only be used in views, and never set on the model so it doesn't risk getting
* serialized and saved.
* @type {string}
*/
newProjectTempName: "new",
/**
* The events this view will listen to and the associated function to call.
* This view will inherit events from the parent class, EditorView.
* @type {Object}
*/
events: _.extend(EditorView.prototype.events, {
"focusout .basic-text" : "updateBasicText",
}),
/**
* Creates a new ProjectEditorView
* @constructs ProjectEditorView
* @param {Object} options - A literal object with options to pass to the view
*/
initialize: function(options){
if(typeof options == "object"){
// initializing the ProjectEditorView properties
this.projectIdentifier = options.projectIdentifier ? options.projectIdentifier : undefined;
this.activeSection = options.activeSection || "";
}
},
/**
* Renders the ProjectEditorView
*/
render: function(){
// Display a spinner to indicate loading until model is created.
this.$el.html(this.loadingTemplate({
msg: "Retrieving project details..."
}));
//Create the model
this.createModel();
// An exisiting project should have a projectIdentifier already set
// from the router, that does not equal the newProjectTempName ("new"),
// plus a seriesId or label set during createModel()
if (
(this.model.get("seriesId") || this.model.get("label"))
&&
(this.projectIdentifier && this.projectIdentifier != this.newProjectTempName)
){
var view = this;
this.listenTo(this.model, "change:isAuthorized", function(){
if (this.model.get("isAuthorized")) {
// When an existing model has been synced render the results
view.stopListening();
view.listenTo(view.model, "sync", view.renderProjectEditor);
// If the project model already exists - fetch it.
view.model.fetch();
// Listens to the focus event on the window to detect when a user
// switches back to this browser tab from somewhere else
// When a user checks back, we want to check for log-in status
MetacatUI.appView.listenForActivity();
// Determine the length of time until the user's current token expires
// Asks to sign in in case of time out
MetacatUI.appView.listenForTimeout();
}
else {
// generate error message
var msg = "This is a private project. You need authorization to edit this project.";
//Show the not authorized error message
MetacatUI.appView.showAlert(msg, "alert-error", this.projEditSectionsContainer);
}
});
// Check if the user is Authorized to edit the project
this.authorizeUser();
}
else {
// Start new projects on the settings tab
this.activeSection = "Settings";
// Render the default model if the project is new
this.renderProjectEditor();
}
return this;
},
/**
* Renders the project editor view once the project view is created
*/
renderProjectEditor: function() {
// Add the template to the view and give the body the "Editor" class
var name = this.model.get("name");
this.$el.html(this.template({
name: name
}));
$("body").addClass("Editor")
.addClass("Portal");
// Get the project identifier
// or set it to a default value in the case that it's a new project
var projectIdentifier = this.projectIdentifier;
if(!projectIdentifier){
projectIdentifier = this.newProjectTempName;
}
//Create a view for the editor sections
var sectionsView = new ProjEditorSectionsView({
model: this.model,
activeSection: this.activeSection,
newProjectTempName: this.newProjectTempName
});
//Add the view element to this view
this.$(this.projEditSectionsContainer).html(sectionsView.el);
//Render the sections view
sectionsView.render();
},
/**
* Create a ProjectModel object
*/
createModel: function(){
// Look up the project document seriesId by its registered name if given
if ( this.projectIdentifier && this.projectIdentifier != this.newProjectTempName) {
// Create a new project model with the identifier
this.model = new Project({
label: this.projectIdentifier
});
// Save the original label in case a user changes it. During URL
// validation, the original label will always be shown as available.
// TODO: if user navigates to project using a SID or PID, we will need
// to get the matching label and then save it to the model
this.model.set("originalLabel", this.projectIdentifier);
// Otherwise, create a new project
} else {
// Create a new, default project model
this.model = new Project({
//Set the isNew attribute so the model will execute certain functions when a Project is new
isNew: true
});
}
// set listeners on the new model
this.setListeners();
},
/**
* The authorizeUser function checks if the current user is authorized
* to edit the given ProjectModel. If not, a message is displayed and
* the view doesn't render anything else.
*
* If the user isn't logged in at all, don't check for authorization and
* display a message and login button.
*/
authorizeUser: function() {
//If the SID has not been found yet, get it from Solr
if( !this.model.get("seriesId") && this.model.get("label") ){
this.listenTo(this.model, "change:seriesId", this.authorizeUser);
this.model.getSeriesIdByName();
return;
}
//Remove the loading message
this.hideLoading();
//Only proceed if the user is logged in
if ( MetacatUI.appUserModel.get("checked") && MetacatUI.appUserModel.get("loggedIn") ){
// checking for the write Permission
this.model.checkAuthority("write");
}
else if ( !MetacatUI.appUserModel.get("loggedIn") ){
// generate error message
var msg = 'This is a private project. If you believe you have permission ' +
'to access this project, then <a href="' + MetacatUI.root +
'/signin">sign in</a>.';
//Show the not logged in error
MetacatUI.appView.showAlert(msg, "alert-error", ".proj-editor-sections-container")
}
},
/**
* Hides the loading
*/
hideLoading: function() {
// Find the loading object and remove it.
if (this.$el.find(".loading")) {
this.$el.find(".loading").remove();
}
},
/**
* When a simple text input field loses focus, the corresponding model
* attribute is updated with the value from the input field
*
* @param {Event} [e] - The focusout event
*/
updateBasicText: function(e){
if(!e) return false;
//Get the category, new value, and model
var category = $(e.target).attr("data-category"),
value = $(e.target).val(),
model = $(e.target).data("model") || this.model;
//We can't update anything without a category
if(!category) return false;
//Get the current value
var currentValue = model.get(category);
//Insert the new value into the array
if( Array.isArray(currentValue) ){
//Find the position this text input is in
var position = $(e.target)
.parents("div.text-container")
.first()
.children("div")
.index( $(e.target).parent() );
//Set the value in that position in the array
currentValue[position] = value;
//Set the changed array on this model
model.set(category, currentValue);
model.trigger("change:" + category);
}
//Update the model if the current value is a string
else if(typeof currentValue == "string" || !currentValue){
model.set(category, value);
model.trigger("change:" + category);
}
//TODO: Add another blank text input (write addBasicText function)
// if($(e.target).is(".new") && value != '' && category != "title"){
// $(e.target).removeClass("new");
// this.addBasicText(e);
// }
},
/**
* This function is called when the app navigates away from this view.
* Any clean-up or housekeeping happens at this time.
*/
onClose: function(){
$("body")
.removeClass("Editor")
.removeClass("Portal");
}
});
return ProjectEditorView;
});