Commit 9af447de by David Baumgold

Moved Backbone models/views out to separate files for pdf textbooks project

parent 0d415d81
CMS.Models.Textbook = Backbone.AssociatedModel.extend({
defaults: function() {
return {
name: "",
chapters: new CMS.Collections.ChapterSet([{}]),
showChapters: false
};
},
relations: [{
type: Backbone.Many,
key: "chapters",
relatedModel: "CMS.Models.Chapter",
collectionType: "CMS.Collections.ChapterSet"
}],
isEmpty: function() {
return !this.get('name') && this.get('chapters').isEmpty();
},
parse: function(response) {
if("tab_title" in response && !("name" in response)) {
response.name = response.tab_title;
delete response.tab_title;
}
if("url" in response && !("chapters" in response)) {
response.chapters = {"url": response.url};
delete response.url;
}
_.each(response.chapters, function(chapter, i) {
chapter.order = chapter.order || i+1;
});
return response;
},
toJSON: function() {
return {
tab_title: this.get('name'),
chapters: this.get('chapters').toJSON()
};
}
});
CMS.Collections.TextbookSet = Backbone.Collection.extend({
model: CMS.Models.Textbook,
url: function() { return window.TEXTBOOK_URL; },
initialize: function() {
this.listenTo(this, "editOne", this.editOne);
},
editOne: function(textbook) {
this.editing = textbook;
},
save: function(options) {
return this.sync('update', this, options);
}
});
CMS.Models.Chapter = Backbone.AssociatedModel.extend({
defaults: function() {
return {
name: "",
asset_path: "",
order: this.collection ? this.collection.nextOrder() : 1
};
},
isEmpty: function() {
return !this.get('name') && !this.get('asset_path');
},
parse: function(response) {
if("title" in response && !("name" in response)) {
response.name = response.title;
delete response.title;
}
if("url" in response && !("asset_path" in response)) {
response.asset_path = response.url;
delete response.url;
}
return response;
},
toJSON: function() {
return {
title: this.get('name'),
url: this.get('asset_path')
};
}
});
CMS.Collections.ChapterSet = Backbone.Collection.extend({
model: CMS.Models.Chapter,
comparator: "order",
nextOrder: function() {
if(!this.length) return 1;
return this.last().get('order') + 1;
},
isEmpty: function() {
return this.length === 0 || this.every(function(m) { return m.isEmpty(); });
}
});
CMS.Models.FileUpload = Backbone.Model.extend({
defaults: {
"title": "",
"message": "",
"selectFile": null,
"uploading": false,
"uploadedBytes": 0,
"totalBytes": 0
}
});
CMS.Views.TextbookShow = Backbone.View.extend({
initialize: function() {
this.template = _.template($("#show-textbook-tpl").text());
this.listenTo(this.model, "change", this.render);
},
tagName: "li",
events: {
"click .edit": "editTextbook",
"click .delete": "confirmDelete",
"click .show-chapters": "showChapters",
"click .hide-chapters": "hideChapters"
},
render: function() {
this.$el.html(this.template(this.model.attributes));
return this;
},
editTextbook: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
this.model.collection.trigger("editOne", this.model);
},
confirmDelete: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
var textbook = this.model, collection = this.model.collection;
var msg = new CMS.Models.WarningMessage({
title: _.str.sprintf(gettext("Delete “%s”?"),
textbook.escape('name')),
message: gettext("Deleting a textbook cannot be undone and once deleted any reference to it in your courseware's navigation will also be removed."),
actions: {
primary: {
text: gettext("Delete"),
click: function(view) {
view.hide();
collection.remove(textbook);
var delmsg = new CMS.Models.SystemFeedback({
intent: "saving",
title: gettext("Deleting…")
});
var notif = new CMS.Views.Notification({
model: delmsg,
closeIcon: false,
minShown: 1250
});
collection.save({
complete: function() {
notif.hide();
}
});
}
},
secondary: [{
text: gettext("Cancel"),
click: function(view) {
view.hide();
}
}]
}
});
var prompt = new CMS.Views.Prompt({model: msg});
},
showChapters: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
this.model.set('showChapters', true);
},
hideChapters: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
this.model.set('showChapters', false);
}
});
CMS.Views.TextbookEdit = Backbone.View.extend({
initialize: function() {
this.template = _.template($("#new-textbook-tpl").text());
var chapters = this.model.get('chapters');
this.listenTo(chapters, "add", this.addOne);
this.listenTo(chapters, "reset", this.addAll);
this.listenTo(chapters, "all", this.render);
this.listenTo(this.model.collection, "editOne", this.remove);
},
tagName: "li",
render: function() {
this.$el.html(this.template({
name: this.model.escape('name'),
errors: null
}));
this.addAll();
return this;
},
events: {
"change input[name=textbook-name]": "setName",
"submit": "setAndClose",
"click .action-cancel": "cancel",
"click .action-add-chapter": "createChapter"
},
addOne: function(chapter) {
var view = new CMS.Views.ChapterEdit({model: chapter});
this.$("ol.chapters").append(view.render().el)
return this;
},
addAll: function() {
this.model.get('chapters').each(this.addOne, this);
},
createChapter: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
this.setValues();
this.model.get('chapters').add([{}]);
},
setName: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
this.model.set("name", this.$("#textbook-name-input").val(), {silent: true});
},
setValues: function() {
this.setName();
var that = this;
_.each(this.$("li"), function(li, i) {
var chapter = that.model.get('chapters').at(i);
chapter.set({
"name": $(".chapter-name", li).val(),
"asset_path": $(".chapter-asset-path", li).val()
})
});
return this;
},
setAndClose: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
this.setValues();
msg = new CMS.Models.SystemFeedback({
intent: "saving",
title: gettext("Saving…")
});
notif = new CMS.Views.Notification({
model: msg,
closeIcon: false,
minShown: 1250
});
var that = this;
this.model.collection.save({
success: function() {
that.close();
},
complete: function() {
notif.hide();
}
});
},
cancel: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
return this.close();
},
close: function() {
var textbooks = this.model.collection;
delete textbooks.editing;
this.remove();
// if the textbook has no content, remove it from the collection
if(this.model.isEmpty()) {
textbooks.remove(this.model);
}
textbooks.trigger('render');
return this;
}
});
CMS.Views.ListTextbooks = Backbone.View.extend({
initialize: function() {
this.emptyTemplate = _.template($("#no-textbooks-tpl").text());
this.listenTo(this.collection, 'all', this.render);
},
tagName: "ul",
className: "textbooks",
render: function() {
var textbooks = this.collection;
if(textbooks.length === 0) {
this.$el.html(this.emptyTemplate());
} else {
var $el = this.$el;
$el.empty();
textbooks.each(function(textbook) {
var view;
if (textbook === textbooks.editing) {
view = new CMS.Views.TextbookEdit({model: textbook});
} else {
view = new CMS.Views.TextbookShow({model: textbook});
}
$el.append(view.render().el);
});
}
return this;
},
events: {
"click .new-button": "addOne"
},
addOne: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
// if the existing edited textbook is empty, don't do anything
if(this.collection.editing && this.collection.editing.isEmpty()) { return; }
var m = new this.collection.model();
this.collection.add(m);
this.collection.trigger("editOne", m);
}
});
CMS.Views.ChapterEdit = Backbone.View.extend({
initialize: function() {
this.template = _.template($("#new-chapter-tpl").text());
this.listenTo(this.model, "change", this.render);
},
tagName: "li",
className: function() {
return "field-group chapter chapter" + this.model.get('order');
},
render: function() {
this.$el.html(this.template({
name: this.model.escape('name'),
asset_path: this.model.escape('asset_path'),
order: this.model.get('order')
}));
return this;
},
events: {
"click .action-close": "removeChapter",
"click .action-upload": "openUploadDialog",
"submit": "uploadAsset"
},
removeChapter: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
this.model.collection.remove(this.model);
return this.remove();
},
openUploadDialog: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
var msg = new CMS.Models.FileUpload({
title: _.str.sprintf(gettext("Upload a new asset to %s"),
section.escape('name')),
message: "This is sample text about asset upload requirements, like no bigger than 2MB, must be in PDF format or whatever."
});
var view = new CMS.Views.UploadDialog({model: msg, chapter: this.model});
$(".wrapper-view").after(view.show().el);
}
});
CMS.Views.UploadDialog = Backbone.View.extend({
options: {
shown: true
},
initialize: function() {
this.template = _.template($("#upload-dialog-tpl").text());
this.listenTo(this.model, "change", this.render);
},
render: function() {
// some browsers (like Chrome) allow you to assign to the .files attribute
// of an <input type="file"> DOM element -- for those browsers, we can
// create a new DOM element and assign the old content to it. Other browsers
// (like Firefox) make this attribute read-only, and we have to save the
// old DOM element in order to save it's content. For compatibility purposes,
// we'll just save the old element every time.
var oldInput = this.$("input[type=file]").get(0), selectedFile;
if (oldInput && oldInput.files.length) {
selectedFile = oldInput.files[0];
}
this.$el.html(this.template({
shown: this.options.shown,
url: UPLOAD_ASSET_CALLBACK_URL,
title: this.model.escape('title'),
message: this.model.escape('message'),
selectedFile: selectedFile,
uploading: this.model.get('uploading'),
uploadedBytes: this.model.get('uploadedBytes'),
totalBytes: this.model.get('totalBytes')
}));
if (oldInput) {
this.$('input[type=file]').replaceWith(oldInput);
}
return this;
},
events: {
"change input[type=file]": "selectFile",
"click .action-cancel": "hideAndRemove",
"click .action-upload": "upload"
},
selectFile: function(e) {
this.model.set('fileList', e.target.files);
},
show: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
this.options.shown = true;
$body.addClass('dialog-is-shown');
return this.render();
},
hide: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
this.options.shown = false;
$body.removeClass('dialog-is-shown');
return this.render();
},
hideAndRemove: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
return this.hide().remove();
},
upload: function(e) {
this.model.set('uploading', true);
this.$("form").ajaxSubmit({
success: _.bind(this.success, this),
error: _.bind(this.error, this),
uploadProgress: _.bind(this.progress, this),
data: {
notifyOnError: false
}
});
},
progress: function(event, position, total, percentComplete) {
this.model.set({
"uploadedBytes": position,
"totalBytes": total
});
},
success: function(response, statusText, xhr, form) {
this.model.set('uploading', false);
var chapter = this.options.chapter;
if(chapter) {
var options = {};
if(!chapter.get("name")) {
options.name = response.displayname;
}
options.asset_path = response.url;
chapter.set(options);
}
this.remove();
},
error: function() {
this.model.set({
"uploading": false,
"uploadedBytes": 0,
"title": gettext("We're sorry, there was an error")
});
}
});
......@@ -25,444 +25,12 @@
<%block name="jsextra">
<script type="text/javascript" src="${static.url('js/vendor/backbone-associations-min.js')}"></script>
<script type="text/javascript" src="${static.url('js/models/textbooks.js')}"></script>
<script type="text/javascript" src="${static.url('js/views/textbooks.js')}"></script>
<script type="text/javascript">
window.UPLOAD_ASSET_CALLBACK_URL = "${upload_asset_callback_url}"
window.TEXTBOOK_URL = "${textbook_url}"
CMS.Models.Textbook = Backbone.AssociatedModel.extend({
defaults: function() {
return {
name: "",
chapters: new CMS.Collections.ChapterSet([{}]),
showChapters: false
};
},
relations: [{
type: Backbone.Many,
key: "chapters",
relatedModel: "CMS.Models.Chapter",
collectionType: "CMS.Collections.ChapterSet"
}],
isEmpty: function() {
return !this.get('name') && this.get('chapters').isEmpty();
},
parse: function(response) {
if("tab_title" in response && !("name" in response)) {
response.name = response.tab_title;
delete response.tab_title;
}
if("url" in response && !("chapters" in response)) {
response.chapters = {"url": response.url};
delete response.url;
}
_.each(response.chapters, function(chapter, i) {
chapter.order = chapter.order || i+1;
})
return response;
},
toJSON: function() {
return {
tab_title: this.get('name'),
chapters: this.get('chapters').toJSON()
}
}
})
CMS.Views.TextbookShow = Backbone.View.extend({
initialize: function() {
this.template = _.template($("#show-textbook-tpl").text());
this.listenTo(this.model, "change", this.render);
},
tagName: "li",
events: {
"click .edit": "editTextbook",
"click .delete": "confirmDelete",
"click .show-chapters": "showChapters",
"click .hide-chapters": "hideChapters"
},
render: function() {
this.$el.html(this.template(this.model.attributes));
return this;
},
editTextbook: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
this.model.collection.trigger("editOne", this.model);
},
confirmDelete: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
var textbook = this.model, collection = this.model.collection;
var msg = new CMS.Models.WarningMessage({
title: _.str.sprintf(gettext("Delete “%s”?"),
textbook.escape('name')),
message: gettext("Deleting a textbook cannot be undone and once deleted any reference to it in your courseware's navigation will also be removed."),
actions: {
primary: {
text: gettext("Delete"),
click: function(view) {
view.hide();
collection.remove(textbook);
var delmsg = new CMS.Models.SystemFeedback({
intent: "saving",
title: gettext("Deleting&hellip;")
});
var notif = new CMS.Views.Notification({
model: delmsg,
closeIcon: false,
minShown: 1250
});
collection.save({
complete: function() {
notif.hide();
}
});
}
},
secondary: [{
text: gettext("Cancel"),
click: function(view) {
view.hide();
}
}]
}
});
var prompt = new CMS.Views.Prompt({model: msg});
},
showChapters: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
this.model.set('showChapters', true);
},
hideChapters: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
this.model.set('showChapters', false);
}
})
CMS.Views.TextbookEdit = Backbone.View.extend({
initialize: function() {
this.template = _.template($("#new-textbook-tpl").text());
var chapters = this.model.get('chapters');
this.listenTo(chapters, "add", this.addOne);
this.listenTo(chapters, "reset", this.addAll);
this.listenTo(chapters, "all", this.render);
this.listenTo(this.model.collection, "editOne", this.remove);
},
tagName: "li",
render: function() {
this.$el.html(this.template({
name: this.model.escape('name'),
errors: null
}));
this.addAll();
return this;
},
events: {
"change input[name=textbook-name]": "setName",
"submit": "setAndClose",
"click .action-cancel": "cancel",
"click .action-add-chapter": "createChapter"
},
addOne: function(chapter) {
var view = new CMS.Views.ChapterEdit({model: chapter});
this.$("ol.chapters").append(view.render().el)
return this;
},
addAll: function() {
this.model.get('chapters').each(this.addOne, this);
},
createChapter: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
this.setValues();
this.model.get('chapters').add([{}]);
},
setName: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
this.model.set("name", this.$("#textbook-name-input").val(), {silent: true});
},
setValues: function() {
this.setName();
var that = this;
_.each(this.$("li"), function(li, i) {
var chapter = that.model.get('chapters').at(i);
chapter.set({
"name": $(".chapter-name", li).val(),
"asset_path": $(".chapter-asset-path", li).val()
})
});
return this;
},
setAndClose: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
this.setValues();
msg = new CMS.Models.SystemFeedback({
intent: "saving",
title: gettext("Saving&hellip;")
});
notif = new CMS.Views.Notification({
model: msg,
closeIcon: false,
minShown: 1250
});
var that = this;
this.model.collection.save({
success: function() {
that.close();
},
complete: function() {
notif.hide();
}
})
},
cancel: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
return this.close();
},
close: function() {
var textbooks = this.model.collection;
delete textbooks.editing;
this.remove();
// if the textbook has no content, remove it from the collection
if(this.model.isEmpty()) {
textbooks.remove(this.model);
}
textbooks.trigger('render');
return this;
}
})
CMS.Collections.TextbookSet = Backbone.Collection.extend({
model: CMS.Models.Textbook,
url: TEXTBOOK_URL,
initialize: function() {
this.listenTo(this, "editOne", this.editOne);
},
editOne: function(textbook) {
this.editing = textbook;
},
save: function(options) {
return this.sync('update', this, options);
}
})
CMS.Views.ListTextbooks = Backbone.View.extend({
initialize: function() {
this.emptyTemplate = _.template($("#no-textbooks-tpl").text());
this.listenTo(this.collection, 'all', this.render);
},
tagName: "ul",
className: "textbooks",
render: function() {
var textbooks = this.collection;
if(textbooks.length === 0) {
this.$el.html(this.emptyTemplate());
} else {
var $el = this.$el;
$el.empty();
textbooks.each(function(textbook) {
var view;
if (textbook === textbooks.editing) {
view = new CMS.Views.TextbookEdit({model: textbook});
} else {
view = new CMS.Views.TextbookShow({model: textbook});
}
$el.append(view.render().el);
})
}
return this;
},
events: {
"click .new-button": "addOne"
},
addOne: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
// if the existing edited textbook is empty, don't do anything
if(this.collection.editing && this.collection.editing.isEmpty()) { return; }
var m = new this.collection.model;
this.collection.add(m);
this.collection.trigger("editOne", m);
}
})
CMS.Models.Chapter = Backbone.AssociatedModel.extend({
defaults: function() {
return {
name: "",
asset_path: "",
order: this.collection ? this.collection.nextOrder() : 1
}
},
isEmpty: function() {
return !this.get('name') && !this.get('asset_path');
},
parse: function(response) {
if("title" in response && !("name" in response)) {
response.name = response.title;
delete response.title;
}
if("url" in response && !("asset_path" in response)) {
response.asset_path = response.url;
delete response.url;
}
return response;
},
toJSON: function() {
return {
title: this.get('name'),
url: this.get('asset_path')
}
}
})
CMS.Collections.ChapterSet = Backbone.Collection.extend({
model: CMS.Models.Chapter,
comparator: "order",
nextOrder: function() {
if(!this.length) return 1;
return this.last().get('order') + 1;
},
isEmpty: function() {
return this.length === 0 || this.every(function(m) { return m.isEmpty(); });
}
})
CMS.Views.ChapterEdit = Backbone.View.extend({
initialize: function() {
this.template = _.template($("#new-chapter-tpl").text());
this.listenTo(this.model, "change", this.render);
},
tagName: "li",
className: function() {
return "field-group chapter chapter" + this.model.get('order');
},
render: function() {
this.$el.html(this.template({
name: this.model.escape('name'),
asset_path: this.model.escape('asset_path'),
order: this.model.get('order')
}));
return this;
},
events: {
"click .action-close": "removeChapter",
"click .action-upload": "openUploadDialog",
"submit": "uploadAsset"
},
removeChapter: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
this.model.collection.remove(this.model);
return this.remove();
},
openUploadDialog: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
var msg = new CMS.Models.FileUpload({
title: _.str.sprintf(gettext("Upload a new asset to %s"),
section.escape('name')),
message: "This is sample text about asset upload requirements, like no bigger than 2MB, must be in PDF format or whatever."
})
var view = new CMS.Views.UploadDialog({model: msg, chapter: this.model})
$(".wrapper-view").after(view.show().el)
}
})
CMS.Models.FileUpload = Backbone.Model.extend({
defaults: {
"title": "",
"message": "",
"selectFile": null,
"uploading": false,
"uploadedBytes": 0,
"totalBytes": 0,
}
});
CMS.Views.UploadDialog = Backbone.View.extend({
options: {
shown: true
},
initialize: function() {
this.template = _.template($("#upload-dialog-tpl").text());
this.listenTo(this.model, "change", this.render);
},
render: function() {
// some browsers (like Chrome) allow you to assign to the .files attribute
// of an <input type="file"> DOM element -- for those browsers, we can
// create a new DOM element and assign the old content to it. Other browsers
// (like Firefox) make this attribute read-only, and we have to save the
// old DOM element in order to save it's content. For compatibility purposes,
// we'll just save the old element every time.
var oldInput = this.$("input[type=file]").get(0), selectedFile;
if (oldInput && oldInput.files.length) {
selectedFile = oldInput.files[0];
}
this.$el.html(this.template({
shown: this.options.shown,
url: UPLOAD_ASSET_CALLBACK_URL,
title: this.model.escape('title'),
message: this.model.escape('message'),
selectedFile: selectedFile,
uploading: this.model.get('uploading'),
uploadedBytes: this.model.get('uploadedBytes'),
totalBytes: this.model.get('totalBytes'),
}))
if (oldInput) {
this.$('input[type=file]').replaceWith(oldInput);
}
return this;
},
events: {
"change input[type=file]": "selectFile",
"click .action-cancel": "hideAndRemove",
"click .action-upload": "upload"
},
selectFile: function(e) {
this.model.set('fileList', e.target.files)
},
show: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
this.options.shown = true;
$body.addClass('dialog-is-shown');
return this.render();
},
hide: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
this.options.shown = false;
$body.removeClass('dialog-is-shown');
return this.render();
},
hideAndRemove: function(e) {
if(e && e.preventDefault) { e.preventDefault(); }
return this.hide().remove();
},
upload: function(e) {
this.model.set('uploading', true);
this.$("form").ajaxSubmit({
success: _.bind(this.success, this),
error: _.bind(this.error, this),
uploadProgress: _.bind(this.progress, this),
data: {
notifyOnError: false
}
});
},
progress: function(event, position, total, percentComplete) {
this.model.set({
"uploadedBytes": position,
"totalBytes": total,
})
},
success: function(response, statusText, xhr, form) {
this.model.set('uploading', false);
var chapter = this.options.chapter;
if(chapter) {
var options = {}
if(!chapter.get("name")) {
options.name = response.displayname;
}
options.asset_path = response.url;
chapter.set(options);
}
this.remove();
},
error: function() {
this.model.set({
"uploading": false,
"uploadedBytes": 0,
"title": gettext("We're sorry, there was an error"),
});
}
})
var section = new CMS.Models.Section({
window.section = new CMS.Models.Section({
id: "${course.id}",
name: "${course.display_name_with_default | h}"
});
......
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