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edx-platform
Commit aade444f by cahrens
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Move overview drag and drop code to a utility class.

parent 2f16bbe1
Showing with 698 additions and 695 deletions
cms/static/coffee/spec/main.coffee
......@@ -207,16 +207,17 @@ define([
"js/spec/video/transcripts/videolist_spec", "js/spec/video/transcripts/message_manager_spec",
"js/spec/video/transcripts/file_uploader_spec",
"js/spec/models/explicit_url_spec"
"js/spec/models/explicit_url_spec",
"js/spec/utils/drag_and_drop_spec",
"js/spec/utils/handle_iframe_binding_spec",
"js/spec/utils/module_spec",
"js/spec/views/baseview_spec",
"js/spec/views/paging_spec",
"js/spec/views/unit_spec"
"js/spec/views/xblock_spec"
"js/spec/views/unit_spec",
"js/spec/views/xblock_spec",
# these tests are run separate in the cms-squire suite, due to process
# isolation issues with Squire.js
......
cms/static/coffee/spec/views/overview_spec.coffee
......@@ -54,38 +54,6 @@ define ["js/views/overview", "js/views/feedback_notification", "js/spec/create_s
</section>
"""
appendSetFixtures """
<section>
<ol class="sortable-subsection-list">
<li class="courseware-subsection is-collapsible id-holder is-draggable" id="subsection-0" data-locator="subsection-0-id" style="margin:5px">
<ol class="sortable-unit-list" id="subsection-list-0">
<li class="courseware-unit unit is-draggable" id="unit-0" data-parent="subsection-0-id" data-locator="zero-unit-id"></li>
</ol>
</li>
<li class="courseware-subsection is-collapsible id-holder is-draggable" id="subsection-1" data-locator="subsection-1-id" style="margin:5px">
<ol class="sortable-unit-list" id="subsection-list-1">
<li class="courseware-unit unit is-draggable" id="unit-1" data-parent="subsection-1-id" data-locator="first-unit-id"></li>
<li class="courseware-unit unit is-draggable" id="unit-2" data-parent="subsection-1-id" data-locator="second-unit-id"></li>
<li class="courseware-unit unit is-draggable" id="unit-3" data-parent="subsection-1-id" data-locator="third-unit-id"></li>
</ol>
</li>
<li class="courseware-subsection is-collapsible id-holder is-draggable" id="subsection-2" data-locator="subsection-2-id" style="margin:5px">
<ol class="sortable-unit-list" id="subsection-list-2">
<li class="courseware-unit unit is-draggable" id="unit-4" data-parent="subsection-2" data-locator="fourth-unit-id"></li>
</ol>
</li>
<li class="courseware-subsection is-collapsible id-holder is-draggable" id="subsection-3" data-locator="subsection-3-id" style="margin:5px">
<ol class="sortable-unit-list" id="subsection-list-3"></ol>
</li>
<li class="courseware-subsection is-collapsible id-holder is-draggable" id="subsection-4" data-locator="subsection-4-id" style="margin:5px">
<ol class="sortable-unit-list" id="subsection-list-4">
<li class="courseware-unit unit is-draggable" id="unit-5" data-parent="subsection-4-id" data-locator="fifth-unit-id"></li>
</ol>
</li>
</ol>
</section>
"""
spyOn(Overview, 'saveSetSectionScheduleDate').andCallThrough()
# Have to do this here, as it normally gets bound in document.ready()
$('a.action-save').click(Overview.saveSetSectionScheduleDate)
......@@ -96,20 +64,6 @@ define ["js/views/overview", "js/views/feedback_notification", "js/spec/create_s
window.analytics = jasmine.createSpyObj('analytics', ['track'])
window.course_location_analytics = jasmine.createSpy()
Overview.overviewDragger.makeDraggable(
'.unit',
'.unit-drag-handle',
'ol.sortable-unit-list',
'li.courseware-subsection, article.subsection-body'
)
Overview.overviewDragger.makeDraggable(
'.courseware-subsection',
'.subsection-drag-handle',
'.sortable-subsection-list',
'section'
)
afterEach ->
delete window.analytics
delete window.course_location_analytics
......@@ -143,305 +97,3 @@ define ["js/views/overview", "js/views/feedback_notification", "js/spec/create_s
# $('a.delete-section-button').click()
# $('a.action-primary').click()
# expect(@notificationSpy).toHaveBeenCalled()
describe "findDestination", ->
it "correctly finds the drop target of a drag", ->
$ele = $('#unit-1')
$ele.offset(
top: $ele.offset().top + 10, left: $ele.offset().left
)
destination = Overview.overviewDragger.findDestination($ele, 1)
expect(destination.ele).toBe($('#unit-2'))
expect(destination.attachMethod).toBe('before')
it "can drag and drop across section boundaries, with special handling for single sibling", ->
$ele = $('#unit-1')
$unit4 = $('#unit-4')
$ele.offset(
top: $unit4.offset().top + 8
left: $ele.offset().left
)
# Dragging down, we will insert after.
destination = Overview.overviewDragger.findDestination($ele, 1)
expect(destination.ele).toBe($unit4)
expect(destination.attachMethod).toBe('after')
# Dragging up, we will insert before.
destination = Overview.overviewDragger.findDestination($ele, -1)
expect(destination.ele).toBe($unit4)
expect(destination.attachMethod).toBe('before')
# If past the end the drop target, will attach after.
$ele.offset(
top: $unit4.offset().top + $unit4.height() + 1
left: $ele.offset().left
)
destination = Overview.overviewDragger.findDestination($ele, 0)
expect(destination.ele).toBe($unit4)
expect(destination.attachMethod).toBe('after')
$unit0 = $('#unit-0')
# If before the start the drop target, will attach before.
$ele.offset(
top: $unit0.offset().top - 16
left: $ele.offset().left
)
destination = Overview.overviewDragger.findDestination($ele, 0)
expect(destination.ele).toBe($unit0)
expect(destination.attachMethod).toBe('before')
it """can drop before the first element, even if element being dragged is
slightly before the first element""", ->
$ele = $('#subsection-2')
$ele.offset(
top: $('#subsection-0').offset().top - 5
left: $ele.offset().left
)
destination = Overview.overviewDragger.findDestination($ele, -1)
expect(destination.ele).toBe($('#subsection-0'))
expect(destination.attachMethod).toBe('before')
it "can drag and drop across section boundaries, with special handling for last element", ->
$ele = $('#unit-4')
$ele.offset(
top: $('#unit-3').offset().bottom + 4
left: $ele.offset().left
)
destination = Overview.overviewDragger.findDestination($ele, -1)
expect(destination.ele).toBe($('#unit-3'))
# Dragging down up into last element, we have a fudge factor makes it easier to drag at beginning.
expect(destination.attachMethod).toBe('after')
# Now past the "fudge factor".
$ele.offset(
top: $('#unit-3').offset().top + 4
left: $ele.offset().left
)
destination = Overview.overviewDragger.findDestination($ele, -1)
expect(destination.ele).toBe($('#unit-3'))
expect(destination.attachMethod).toBe('before')
it """can drop past the last element, even if element being dragged is
slightly before/taller then the last element""", ->
$ele = $('#subsection-2')
$ele.offset(
# Make the top 1 before the top of the last element in the list.
# This mimics the problem when the element being dropped is taller then then
# the last element in the list.
top: $('#subsection-4').offset().top - 1
left: $ele.offset().left
)
destination = Overview.overviewDragger.findDestination($ele, 1)
expect(destination.ele).toBe($('#subsection-4'))
expect(destination.attachMethod).toBe('after')
it "can drag into an empty list", ->
$ele = $('#unit-1')
$ele.offset(
top: $('#subsection-3').offset().top + 10
left: $ele.offset().left
)
destination = Overview.overviewDragger.findDestination($ele, 1)
expect(destination.ele).toBe($('#subsection-list-3'))
expect(destination.attachMethod).toBe('prepend')
it "reports a null destination on a failed drag", ->
$ele = $('#unit-1')
$ele.offset(
top: $ele.offset().top + 200, left: $ele.offset().left
)
destination = Overview.overviewDragger.findDestination($ele, 1)
expect(destination).toEqual(
ele: null
attachMethod: ""
)
it "can drag into a collapsed list", ->
$('#subsection-2').addClass('collapsed')
$ele = $('#unit-2')
$ele.offset(
top: $('#subsection-2').offset().top + 3
left: $ele.offset().left
)
destination = Overview.overviewDragger.findDestination($ele, 1)
expect(destination.ele).toBe($('#subsection-list-2'))
expect(destination.parentList).toBe($('#subsection-2'))
expect(destination.attachMethod).toBe('prepend')
describe "onDragStart", ->
it "sets the dragState to its default values", ->
expect(Overview.overviewDragger.dragState).toEqual({})
# Call with some dummy data
Overview.overviewDragger.onDragStart(
{element: $('#unit-1')},
null,
null
)
expect(Overview.overviewDragger.dragState).toEqual(
dropDestination: null,
attachMethod: '',
parentList: null,
lastY: 0,
dragDirection: 0
)
it "collapses expanded elements", ->
expect($('#subsection-1')).not.toHaveClass('collapsed')
Overview.overviewDragger.onDragStart(
{element: $('#subsection-1')},
null,
null
)
expect($('#subsection-1')).toHaveClass('collapsed')
expect($('#subsection-1')).toHaveClass('expand-on-drop')
describe "onDragMove", ->
beforeEach ->
@scrollSpy = spyOn(window, 'scrollBy').andCallThrough()
it "adds the correct CSS class to the drop destination", ->
$ele = $('#unit-1')
dragY = $ele.offset().top + 10
dragX = $ele.offset().left
$ele.offset(
top: dragY, left: dragX
)
Overview.overviewDragger.onDragMove(
{element: $ele, dragPoint:
{y: dragY}}, '', {clientX: dragX}
)
expect($('#unit-2')).toHaveClass('drop-target drop-target-before')
expect($ele).toHaveClass('valid-drop')
it "does not add CSS class to the drop destination if out of bounds", ->
$ele = $('#unit-1')
dragY = $ele.offset().top + 10
$ele.offset(
top: dragY, left: $ele.offset().left
)
Overview.overviewDragger.onDragMove(
{element: $ele, dragPoint:
{y: dragY}}, '', {clientX: $ele.offset().left - 3}
)
expect($('#unit-2')).not.toHaveClass('drop-target drop-target-before')
expect($ele).not.toHaveClass('valid-drop')
it "scrolls up if necessary", ->
Overview.overviewDragger.onDragMove(
{element: $('#unit-1')}, '', {clientY: 2}
)
expect(@scrollSpy).toHaveBeenCalledWith(0, -10)
it "scrolls down if necessary", ->
Overview.overviewDragger.onDragMove(
{element: $('#unit-1')}, '', {clientY: (window.innerHeight - 5)}
)
expect(@scrollSpy).toHaveBeenCalledWith(0, 10)
describe "onDragEnd", ->
beforeEach ->
@reorderSpy = spyOn(Overview.overviewDragger, 'handleReorder')
afterEach ->
@reorderSpy.reset()
it "calls handleReorder on a successful drag", ->
Overview.overviewDragger.dragState.dropDestination = $('#unit-2')
Overview.overviewDragger.dragState.attachMethod = "before"
Overview.overviewDragger.dragState.parentList = $('#subsection-1')
$('#unit-1').offset(
top: $('#unit-1').offset().top + 10
left: $('#unit-1').offset().left
)
Overview.overviewDragger.onDragEnd(
{element: $('#unit-1')},
null,
{clientX: $('#unit-1').offset().left}
)
expect(@reorderSpy).toHaveBeenCalled()
it "clears out the drag state", ->
Overview.overviewDragger.onDragEnd(
{element: $('#unit-1')},
null,
null
)
expect(Overview.overviewDragger.dragState).toEqual({})
it "sets the element to the correct position", ->
Overview.overviewDragger.onDragEnd(
{element: $('#unit-1')},
null,
null
)
# Chrome sets the CSS to 'auto', but Firefox uses '0px'.
expect(['0px', 'auto']).toContain($('#unit-1').css('top'))
expect(['0px', 'auto']).toContain($('#unit-1').css('left'))
it "expands an element if it was collapsed on drag start", ->
$('#subsection-1').addClass('collapsed')
$('#subsection-1').addClass('expand-on-drop')
Overview.overviewDragger.onDragEnd(
{element: $('#subsection-1')},
null,
null
)
expect($('#subsection-1')).not.toHaveClass('collapsed')
expect($('#subsection-1')).not.toHaveClass('expand-on-drop')
it "expands a collapsed element when something is dropped in it", ->
$('#subsection-2').addClass('collapsed')
Overview.overviewDragger.dragState.dropDestination = $('#list-2')
Overview.overviewDragger.dragState.attachMethod = "prepend"
Overview.overviewDragger.dragState.parentList = $('#subsection-2')
Overview.overviewDragger.onDragEnd(
{element: $('#unit-1')},
null,
{clientX: $('#unit-1').offset().left}
)
expect($('#subsection-2')).not.toHaveClass('collapsed')
describe "AJAX", ->
beforeEach ->
@savingSpies = spyOnConstructor(Notification, "Mini",
["show", "hide"])
@savingSpies.show.andReturn(@savingSpies)
@clock = sinon.useFakeTimers()
afterEach ->
@clock.restore()
it "should send an update on reorder", ->
requests = create_sinon["requests"](this)
Overview.overviewDragger.dragState.dropDestination = $('#unit-4')
Overview.overviewDragger.dragState.attachMethod = "after"
Overview.overviewDragger.dragState.parentList = $('#subsection-2')
# Drag Unit 1 from Subsection 1 to the end of Subsection 2.
$('#unit-1').offset(
top: $('#unit-4').offset().top + 10
left: $('#unit-4').offset().left
)
Overview.overviewDragger.onDragEnd(
{element: $('#unit-1')},
null,
{clientX: $('#unit-1').offset().left}
)
expect(requests.length).toEqual(2)
expect(@savingSpies.constructor).toHaveBeenCalled()
expect(@savingSpies.show).toHaveBeenCalled()
expect(@savingSpies.hide).not.toHaveBeenCalled()
savingOptions = @savingSpies.constructor.mostRecentCall.args[0]
expect(savingOptions.title).toMatch(/Saving/)
expect($('#unit-1')).toHaveClass('was-dropped')
# We expect 2 requests to be sent-- the first for removing Unit 1 from Subsection 1,
# and the second for adding Unit 1 to the end of Subsection 2.
expect(requests[0].requestBody).toEqual('{"children":["second-unit-id","third-unit-id"]}')
requests[0].respond(200)
expect(@savingSpies.hide).not.toHaveBeenCalled()
expect(requests[1].requestBody).toEqual('{"children":["fourth-unit-id","first-unit-id"]}')
requests[1].respond(200)
expect(@savingSpies.hide).toHaveBeenCalled()
# Class is removed in a timeout.
@clock.tick(1001)
expect($('#unit-1')).not.toHaveClass('was-dropped')
cms/static/js/spec/utils/drag_and_drop_spec.js 0 → 100644
define(["js/utils/drag_and_drop", "js/views/feedback_notification", "js/spec/create_sinon", "jquery"],
function (ContentDragger, Notification, create_sinon, $) {
describe("Overview drag and drop functionality", function () {
beforeEach(function () {
setFixtures(readFixtures('mock/mock-outline.underscore'));
ContentDragger.makeDraggable('.unit', '.unit-drag-handle', 'ol.sortable-unit-list', 'li.courseware-subsection, article.subsection-body');
ContentDragger.makeDraggable('.courseware-subsection', '.subsection-drag-handle', '.sortable-subsection-list', 'section');
});
describe("findDestination", function () {
it("correctly finds the drop target of a drag", function () {
var $ele, destination;
$ele = $('#unit-1');
$ele.offset({
top: $ele.offset().top + 10,
left: $ele.offset().left
});
destination = ContentDragger.findDestination($ele, 1);
expect(destination.ele).toBe($('#unit-2'));
expect(destination.attachMethod).toBe('before');
});
it("can drag and drop across section boundaries, with special handling for single sibling", function () {
var $ele, $unit0, $unit4, destination;
$ele = $('#unit-1');
$unit4 = $('#unit-4');
$ele.offset({
top: $unit4.offset().top + 8,
left: $ele.offset().left
});
destination = ContentDragger.findDestination($ele, 1);
expect(destination.ele).toBe($unit4);
expect(destination.attachMethod).toBe('after');
destination = ContentDragger.findDestination($ele, -1);
expect(destination.ele).toBe($unit4);
expect(destination.attachMethod).toBe('before');
$ele.offset({
top: $unit4.offset().top + $unit4.height() + 1,
left: $ele.offset().left
});
destination = ContentDragger.findDestination($ele, 0);
expect(destination.ele).toBe($unit4);
expect(destination.attachMethod).toBe('after');
$unit0 = $('#unit-0');
$ele.offset({
top: $unit0.offset().top - 16,
left: $ele.offset().left
});
destination = ContentDragger.findDestination($ele, 0);
expect(destination.ele).toBe($unit0);
expect(destination.attachMethod).toBe('before');
});
it("can drop before the first element, even if element being dragged is\nslightly before the first element", function () {
var $ele, destination;
$ele = $('#subsection-2');
$ele.offset({
top: $('#subsection-0').offset().top - 5,
left: $ele.offset().left
});
destination = ContentDragger.findDestination($ele, -1);
expect(destination.ele).toBe($('#subsection-0'));
expect(destination.attachMethod).toBe('before');
});
it("can drag and drop across section boundaries, with special handling for last element", function () {
var $ele, destination;
$ele = $('#unit-4');
$ele.offset({
top: $('#unit-3').offset().bottom + 4,
left: $ele.offset().left
});
destination = ContentDragger.findDestination($ele, -1);
expect(destination.ele).toBe($('#unit-3'));
expect(destination.attachMethod).toBe('after');
$ele.offset({
top: $('#unit-3').offset().top + 4,
left: $ele.offset().left
});
destination = ContentDragger.findDestination($ele, -1);
expect(destination.ele).toBe($('#unit-3'));
expect(destination.attachMethod).toBe('before');
});
it("can drop past the last element, even if element being dragged is\nslightly before/taller then the last element", function () {
var $ele, destination;
$ele = $('#subsection-2');
$ele.offset({
top: $('#subsection-4').offset().top - 1,
left: $ele.offset().left
});
destination = ContentDragger.findDestination($ele, 1);
expect(destination.ele).toBe($('#subsection-4'));
expect(destination.attachMethod).toBe('after');
});
it("can drag into an empty list", function () {
var $ele, destination;
$ele = $('#unit-1');
$ele.offset({
top: $('#subsection-3').offset().top + 10,
left: $ele.offset().left
});
destination = ContentDragger.findDestination($ele, 1);
expect(destination.ele).toBe($('#subsection-list-3'));
expect(destination.attachMethod).toBe('prepend');
});
it("reports a null destination on a failed drag", function () {
var $ele, destination;
$ele = $('#unit-1');
$ele.offset({
top: $ele.offset().top + 200,
left: $ele.offset().left
});
destination = ContentDragger.findDestination($ele, 1);
expect(destination).toEqual({
ele: null,
attachMethod: ""
});
});
it("can drag into a collapsed list", function () {
var $ele, destination;
$('#subsection-2').addClass('collapsed');
$ele = $('#unit-2');
$ele.offset({
top: $('#subsection-2').offset().top + 3,
left: $ele.offset().left
});
destination = ContentDragger.findDestination($ele, 1);
expect(destination.ele).toBe($('#subsection-list-2'));
expect(destination.parentList).toBe($('#subsection-2'));
expect(destination.attachMethod).toBe('prepend');
});
});
describe("onDragStart", function () {
it("sets the dragState to its default values", function () {
expect(ContentDragger.dragState).toEqual({});
ContentDragger.onDragStart({
element: $('#unit-1')
}, null, null);
expect(ContentDragger.dragState).toEqual({
dropDestination: null,
attachMethod: '',
parentList: null,
lastY: 0,
dragDirection: 0
});
});
it("collapses expanded elements", function () {
expect($('#subsection-1')).not.toHaveClass('collapsed');
ContentDragger.onDragStart({
element: $('#subsection-1')
}, null, null);
expect($('#subsection-1')).toHaveClass('collapsed');
expect($('#subsection-1')).toHaveClass('expand-on-drop');
});
});
describe("onDragMove", function () {
beforeEach(function () {
this.scrollSpy = spyOn(window, 'scrollBy').andCallThrough();
});
it("adds the correct CSS class to the drop destination", function () {
var $ele, dragX, dragY;
$ele = $('#unit-1');
dragY = $ele.offset().top + 10;
dragX = $ele.offset().left;
$ele.offset({
top: dragY,
left: dragX
});
ContentDragger.onDragMove({
element: $ele,
dragPoint: {
y: dragY
}
}, '', {
clientX: dragX
});
expect($('#unit-2')).toHaveClass('drop-target drop-target-before');
expect($ele).toHaveClass('valid-drop');
});
it("does not add CSS class to the drop destination if out of bounds", function () {
var $ele, dragY;
$ele = $('#unit-1');
dragY = $ele.offset().top + 10;
$ele.offset({
top: dragY,
left: $ele.offset().left
});
ContentDragger.onDragMove({
element: $ele,
dragPoint: {
y: dragY
}
}, '', {
clientX: $ele.offset().left - 3
});
expect($('#unit-2')).not.toHaveClass('drop-target drop-target-before');
expect($ele).not.toHaveClass('valid-drop');
});
it("scrolls up if necessary", function () {
ContentDragger.onDragMove({
element: $('#unit-1')
}, '', {
clientY: 2
});
expect(this.scrollSpy).toHaveBeenCalledWith(0, -10);
});
it("scrolls down if necessary", function () {
ContentDragger.onDragMove({
element: $('#unit-1')
}, '', {
clientY: window.innerHeight - 5
});
expect(this.scrollSpy).toHaveBeenCalledWith(0, 10);
});
});
describe("onDragEnd", function () {
beforeEach(function () {
this.reorderSpy = spyOn(ContentDragger, 'handleReorder');
});
afterEach(function () {
this.reorderSpy.reset();
});
it("calls handleReorder on a successful drag", function () {
ContentDragger.dragState.dropDestination = $('#unit-2');
ContentDragger.dragState.attachMethod = "before";
ContentDragger.dragState.parentList = $('#subsection-1');
$('#unit-1').offset({
top: $('#unit-1').offset().top + 10,
left: $('#unit-1').offset().left
});
ContentDragger.onDragEnd({
element: $('#unit-1')
}, null, {
clientX: $('#unit-1').offset().left
});
expect(this.reorderSpy).toHaveBeenCalled();
});
it("clears out the drag state", function () {
ContentDragger.onDragEnd({
element: $('#unit-1')
}, null, null);
expect(ContentDragger.dragState).toEqual({});
});
it("sets the element to the correct position", function () {
ContentDragger.onDragEnd({
element: $('#unit-1')
}, null, null);
expect(['0px', 'auto']).toContain($('#unit-1').css('top'));
expect(['0px', 'auto']).toContain($('#unit-1').css('left'));
});
it("expands an element if it was collapsed on drag start", function () {
$('#subsection-1').addClass('collapsed');
$('#subsection-1').addClass('expand-on-drop');
ContentDragger.onDragEnd({
element: $('#subsection-1')
}, null, null);
expect($('#subsection-1')).not.toHaveClass('collapsed');
expect($('#subsection-1')).not.toHaveClass('expand-on-drop');
});
it("expands a collapsed element when something is dropped in it", function () {
$('#subsection-2').addClass('collapsed');
ContentDragger.dragState.dropDestination = $('#list-2');
ContentDragger.dragState.attachMethod = "prepend";
ContentDragger.dragState.parentList = $('#subsection-2');
ContentDragger.onDragEnd({
element: $('#unit-1')
}, null, {
clientX: $('#unit-1').offset().left
});
expect($('#subsection-2')).not.toHaveClass('collapsed');
});
});
describe("AJAX", function () {
beforeEach(function () {
this.savingSpies = spyOnConstructor(Notification, "Mini", ["show", "hide"]);
this.savingSpies.show.andReturn(this.savingSpies);
this.clock = sinon.useFakeTimers();
});
afterEach(function () {
this.clock.restore();
});
it("should send an update on reorder", function () {
var requests, savingOptions;
requests = create_sinon["requests"](this);
ContentDragger.dragState.dropDestination = $('#unit-4');
ContentDragger.dragState.attachMethod = "after";
ContentDragger.dragState.parentList = $('#subsection-2');
$('#unit-1').offset({
top: $('#unit-4').offset().top + 10,
left: $('#unit-4').offset().left
});
ContentDragger.onDragEnd({
element: $('#unit-1')
}, null, {
clientX: $('#unit-1').offset().left
});
expect(requests.length).toEqual(2);
expect(this.savingSpies.constructor).toHaveBeenCalled();
expect(this.savingSpies.show).toHaveBeenCalled();
expect(this.savingSpies.hide).not.toHaveBeenCalled();
savingOptions = this.savingSpies.constructor.mostRecentCall.args[0];
expect(savingOptions.title).toMatch(/Saving/);
expect($('#unit-1')).toHaveClass('was-dropped');
expect(requests[0].requestBody).toEqual('{"children":["second-unit-id","third-unit-id"]}');
requests[0].respond(200);
expect(this.savingSpies.hide).not.toHaveBeenCalled();
expect(requests[1].requestBody).toEqual('{"children":["fourth-unit-id","first-unit-id"]}');
requests[1].respond(200);
expect(this.savingSpies.hide).toHaveBeenCalled();
this.clock.tick(1001);
expect($('#unit-1')).not.toHaveClass('was-dropped');
});
});
});
});
cms/static/js/utils/drag_and_drop.js 0 → 100644
define(["jquery", "jquery.ui", "underscore", "gettext", "js/views/feedback_notification", "draggabilly",
"js/utils/module"],
function ($, ui, _, gettext, NotificationView, Draggabilly, ModuleUtils) {
var contentDragger = {
droppableClasses: 'drop-target drop-target-prepend drop-target-before drop-target-after',
validDropClass: "valid-drop",
expandOnDropClass: "expand-on-drop",
/*
* Determine information about where to drop the currently dragged
* element. Returns the element to attach to and the method of
* attachment ('before', 'after', or 'prepend').
*/
findDestination: function (ele, yChange) {
var eleY = ele.offset().top;
var eleYEnd = eleY + ele.height();
var containers = $(ele.data('droppable-class'));
for (var i = 0; i < containers.length; i++) {
var container = $(containers[i]);
// Exclude the 'new unit' buttons, and make sure we don't
// prepend an element to itself
var siblings = container.children().filter(function () {
return $(this).data('locator') !== undefined && !$(this).is(ele);
});
// If the container is collapsed, check to see if the
// element is on top of its parent list -- don't check the
// position of the container
var parentList = container.parents(ele.data('parent-location-selector')).first();
if (parentList.hasClass('collapsed')) {
var parentListTop = parentList.offset().top;
// To make it easier to drop subsections into collapsed sections (which have
// a lot of visual padding around them), allow a fudge factor around the
// parent element.
var collapseFudge = 10;
if (Math.abs(eleY - parentListTop) < collapseFudge ||
(eleY > parentListTop &&
eleYEnd - collapseFudge <= parentListTop + parentList.height())
) {
return {
ele: container,
attachMethod: 'prepend',
parentList: parentList
};
}
}
// Otherwise, do check the container
else {
// If the list is empty, we should prepend to it,
// unless both elements are at the same location --
// this prevents the user from being unable to expand
// a section
var containerY = container.offset().top;
if (siblings.length === 0 &&
containerY !== eleY &&
Math.abs(eleY - containerY) < 50) {
return {
ele: container,
attachMethod: 'prepend'
};
}
// Otherwise the list is populated, and we should attach before/after a sibling
else {
for (var j = 0; j < siblings.length; j++) {
var $sibling = $(siblings[j]);
var siblingY = $sibling.offset().top;
var siblingHeight = $sibling.height();
var siblingYEnd = siblingY + siblingHeight;
// Facilitate dropping into the beginning or end of a list
// (coming from opposite direction) via a "fudge factor". Math.min is for Jasmine test.
var fudge = Math.min(Math.ceil(siblingHeight / 2), 20);
// Dragging to top or bottom of a list with only one element is tricky
// because the element being dragged may be the same size as the sibling.
if (siblings.length === 1) {
// Element being dragged is within the drop target. Use the direction
// of the drag (yChange) to determine before or after.
if (eleY + fudge >= siblingY && eleYEnd - fudge <= siblingYEnd) {
return {
ele: $sibling,
attachMethod: yChange > 0 ? 'after' : 'before'
};
}
// Element being dragged is before the drop target.
else if (Math.abs(eleYEnd - siblingY) <= fudge) {
return {
ele: $sibling,
attachMethod: 'before'
};
}
// Element being dragged is after the drop target.
else if (Math.abs(eleY - siblingYEnd) <= fudge) {
return {
ele: $sibling,
attachMethod: 'after'
};
}
}
else {
// Dragging up into end of list.
if (j === siblings.length - 1 && yChange < 0 && Math.abs(eleY - siblingYEnd) <= fudge) {
return {
ele: $sibling,
attachMethod: 'after'
};
}
// Dragging up or down into beginning of list.
else if (j === 0 && Math.abs(eleY - siblingY) <= fudge) {
return {
ele: $sibling,
attachMethod: 'before'
};
}
// Dragging down into end of list. Special handling required because
// the element being dragged may be taller then the element being dragged over
// (if eleY can never be >= siblingY, general case at the end does not work).
else if (j === siblings.length - 1 && yChange > 0 &&
Math.abs(eleYEnd - siblingYEnd) <= fudge) {
return {
ele: $sibling,
attachMethod: 'after'
};
}
else if (eleY >= siblingY && eleY <= siblingYEnd) {
return {
ele: $sibling,
attachMethod: eleY - siblingY <= siblingHeight / 2 ? 'before' : 'after'
};
}
}
}
}
}
}
// Failed drag
return {
ele: null,
attachMethod: ''
};
},
// Information about the current drag.
dragState: {},
onDragStart: function (draggie, event, pointer) {
var ele = $(draggie.element);
this.dragState = {
// Which element will be dropped into/onto on success
dropDestination: null,
// How we attach to the destination: 'before', 'after', 'prepend'
attachMethod: '',
// If dragging to an empty section, the parent section
parentList: null,
// The y location of the last dragMove event (to determine direction).
lastY: 0,
// The direction the drag is moving in (negative means up, positive down).
dragDirection: 0
};
if (!ele.hasClass('collapsed')) {
ele.addClass('collapsed');
ele.find('.expand-collapse').first().addClass('expand').removeClass('collapse');
// onDragStart gets called again after the collapse, so we can't just store a variable in the dragState.
ele.addClass(this.expandOnDropClass);
}
},
onDragMove: function (draggie, event, pointer) {
// Handle scrolling of the browser.
var scrollAmount = 0;
var dragBuffer = 10;
if (window.innerHeight - dragBuffer < pointer.clientY) {
scrollAmount = dragBuffer;
}
else if (dragBuffer > pointer.clientY) {
scrollAmount = -(dragBuffer);
}
if (scrollAmount !== 0) {
window.scrollBy(0, scrollAmount);
return;
}
var yChange = draggie.dragPoint.y - this.dragState.lastY;
if (yChange !== 0) {
this.dragState.direction = yChange;
}
this.dragState.lastY = draggie.dragPoint.y;
var ele = $(draggie.element);
var destinationInfo = this.findDestination(ele, this.dragState.direction);
var destinationEle = destinationInfo.ele;
this.dragState.parentList = destinationInfo.parentList;
// Clear out the old destination
if (this.dragState.dropDestination) {
this.dragState.dropDestination.removeClass(this.droppableClasses);
}
// Mark the new destination
if (destinationEle && this.pointerInBounds(pointer, ele)) {
ele.addClass(this.validDropClass);
destinationEle.addClass('drop-target drop-target-' + destinationInfo.attachMethod);
this.dragState.attachMethod = destinationInfo.attachMethod;
this.dragState.dropDestination = destinationEle;
}
else {
ele.removeClass(this.validDropClass);
this.dragState.attachMethod = '';
this.dragState.dropDestination = null;
}
},
onDragEnd: function (draggie, event, pointer) {
var ele = $(draggie.element);
var destination = this.dragState.dropDestination;
// Clear dragging state in preparation for the next event.
if (destination) {
destination.removeClass(this.droppableClasses);
}
ele.removeClass(this.validDropClass);
// If the drag succeeded, rearrange the DOM and send the result.
if (destination && this.pointerInBounds(pointer, ele)) {
// Make sure we don't drop into a collapsed element
if (this.dragState.parentList) {
this.expandElement(this.dragState.parentList);
}
var method = this.dragState.attachMethod;
destination[method](ele);
this.handleReorder(ele);
}
// If the drag failed, send it back
else {
$('.was-dragging').removeClass('was-dragging');
ele.addClass('was-dragging');
}
if (ele.hasClass(this.expandOnDropClass)) {
this.expandElement(ele);
ele.removeClass(this.expandOnDropClass);
}
// Everything in its right place
ele.css({
top: 'auto',
left: 'auto'
});
this.dragState = {};
},
pointerInBounds: function (pointer, ele) {
return pointer.clientX >= ele.offset().left && pointer.clientX < ele.offset().left + ele.width();
},
expandElement: function (ele) {
ele.removeClass('collapsed');
ele.find('.expand-collapse').first().removeClass('expand').addClass('collapse');
},
/*
* Find all parent-child changes and save them.
*/
handleReorder: function (ele) {
var parentSelector = ele.data('parent-location-selector');
var childrenSelector = ele.data('child-selector');
var newParentEle = ele.parents(parentSelector).first();
var newParentLocator = newParentEle.data('locator');
var oldParentLocator = ele.data('parent');
// If the parent has changed, update the children of the old parent.
if (newParentLocator !== oldParentLocator) {
// Find the old parent element.
var oldParentEle = $(parentSelector).filter(function () {
return $(this).data('locator') === oldParentLocator;
});
this.saveItem(oldParentEle, childrenSelector, function () {
ele.data('parent', newParentLocator);
});
}
var saving = new NotificationView.Mini({
title: gettext('Saving&hellip;')
});
saving.show();
ele.addClass('was-dropped');
// Timeout interval has to match what is in the CSS.
setTimeout(function () {
ele.removeClass('was-dropped');
}, 1000);
this.saveItem(newParentEle, childrenSelector, function () {
saving.hide();
});
},
/*
* Actually save the update to the server. Takes the element
* representing the parent item to save, a CSS selector to find
* its children, and a success callback.
*/
saveItem: function (ele, childrenSelector, success) {
// Find all current child IDs.
var children = _.map(
ele.find(childrenSelector),
function (child) {
return $(child).data('locator');
}
);
$.ajax({
url: ModuleUtils.getUpdateUrl(ele.data('locator')),
type: 'PUT',
dataType: 'json',
contentType: 'application/json',
data: JSON.stringify({
children: children
}),
success: success
});
},
/*
* Make `type` draggable using `handleClass`, able to be dropped
* into `droppableClass`, and with parent type
* `parentLocationSelector`.
*/
makeDraggable: function (type, handleClass, droppableClass, parentLocationSelector) {
_.each(
$(type),
function (ele) {
// Remember data necessary to reconstruct the parent-child relationships
$(ele).data('droppable-class', droppableClass);
$(ele).data('parent-location-selector', parentLocationSelector);
$(ele).data('child-selector', type);
var draggable = new Draggabilly(ele, {
handle: handleClass,
containment: '.wrapper-dnd'
});
draggable.on('dragStart', _.bind(contentDragger.onDragStart, contentDragger));
draggable.on('dragMove', _.bind(contentDragger.onDragMove, contentDragger));
draggable.on('dragEnd', _.bind(contentDragger.onDragEnd, contentDragger));
}
);
}
};
return contentDragger;
});
cms/static/js/views/overview.js
define(["domReady", "jquery", "jquery.ui", "underscore", "gettext", "js/views/feedback_notification", "draggabilly",
define(["domReady", "jquery", "jquery.ui", "underscore", "gettext", "js/views/feedback_notification", "js/utils/drag_and_drop",
"js/utils/cancel_on_escape", "js/utils/get_date", "js/utils/module"],
function (domReady, $, ui, _, gettext, NotificationView, Draggabilly, CancelOnEscape,
function (domReady, $, ui, _, gettext, NotificationView, ContentDragger, CancelOnEscape,
DateUtils, ModuleUtils) {
var modalSelector = '.edit-section-publish-settings';
......@@ -207,345 +207,7 @@ define(["domReady", "jquery", "jquery.ui", "underscore", "gettext", "js/views/fe
$(this).parents('li.courseware-subsection').remove();
};
var overviewDragger = {
droppableClasses: 'drop-target drop-target-prepend drop-target-before drop-target-after',
validDropClass: "valid-drop",
expandOnDropClass: "expand-on-drop",
/*
* Determine information about where to drop the currently dragged
* element. Returns the element to attach to and the method of
* attachment ('before', 'after', or 'prepend').
*/
findDestination: function (ele, yChange) {
var eleY = ele.offset().top;
var eleYEnd = eleY + ele.height();
var containers = $(ele.data('droppable-class'));
for (var i = 0; i < containers.length; i++) {
var container = $(containers[i]);
// Exclude the 'new unit' buttons, and make sure we don't
// prepend an element to itself
var siblings = container.children().filter(function () {
return $(this).data('locator') !== undefined && !$(this).is(ele);
});
// If the container is collapsed, check to see if the
// element is on top of its parent list -- don't check the
// position of the container
var parentList = container.parents(ele.data('parent-location-selector')).first();
if (parentList.hasClass('collapsed')) {
var parentListTop = parentList.offset().top;
// To make it easier to drop subsections into collapsed sections (which have
// a lot of visual padding around them), allow a fudge factor around the
// parent element.
var collapseFudge = 10;
if (Math.abs(eleY - parentListTop) < collapseFudge ||
(eleY > parentListTop &&
eleYEnd - collapseFudge <= parentListTop + parentList.height())
) {
return {
ele: container,
attachMethod: 'prepend',
parentList: parentList
};
}
}
// Otherwise, do check the container
else {
// If the list is empty, we should prepend to it,
// unless both elements are at the same location --
// this prevents the user from being unable to expand
// a section
var containerY = container.offset().top;
if (siblings.length == 0 &&
containerY != eleY &&
Math.abs(eleY - containerY) < 50) {
return {
ele: container,
attachMethod: 'prepend'
};
}
// Otherwise the list is populated, and we should attach before/after a sibling
else {
for (var j = 0; j < siblings.length; j++) {
var $sibling = $(siblings[j]);
var siblingY = $sibling.offset().top;
var siblingHeight = $sibling.height();
var siblingYEnd = siblingY + siblingHeight;
// Facilitate dropping into the beginning or end of a list
// (coming from opposite direction) via a "fudge factor". Math.min is for Jasmine test.
var fudge = Math.min(Math.ceil(siblingHeight / 2), 20);
// Dragging to top or bottom of a list with only one element is tricky
// because the element being dragged may be the same size as the sibling.
if (siblings.length == 1) {
// Element being dragged is within the drop target. Use the direction
// of the drag (yChange) to determine before or after.
if (eleY + fudge >= siblingY && eleYEnd - fudge <= siblingYEnd) {
return {
ele: $sibling,
attachMethod: yChange > 0 ? 'after' : 'before'
};
}
// Element being dragged is before the drop target.
else if (Math.abs(eleYEnd - siblingY) <= fudge) {
return {
ele: $sibling,
attachMethod: 'before'
};
}
// Element being dragged is after the drop target.
else if (Math.abs(eleY - siblingYEnd) <= fudge) {
return {
ele: $sibling,
attachMethod: 'after'
};
}
}
else {
// Dragging up into end of list.
if (j == siblings.length - 1 && yChange < 0 && Math.abs(eleY - siblingYEnd) <= fudge) {
return {
ele: $sibling,
attachMethod: 'after'
};
}
// Dragging up or down into beginning of list.
else if (j == 0 && Math.abs(eleY - siblingY) <= fudge) {
return {
ele: $sibling,
attachMethod: 'before'
};
}
// Dragging down into end of list. Special handling required because
// the element being dragged may be taller then the element being dragged over
// (if eleY can never be >= siblingY, general case at the end does not work).
else if (j == siblings.length - 1 && yChange > 0 &&
Math.abs(eleYEnd - siblingYEnd) <= fudge) {
return {
ele: $sibling,
attachMethod: 'after'
};
}
else if (eleY >= siblingY && eleY <= siblingYEnd) {
return {
ele: $sibling,
attachMethod: eleY - siblingY <= siblingHeight / 2 ? 'before' : 'after'
};
}
}
}
}
}
}
// Failed drag
return {
ele: null,
attachMethod: ''
}
},
// Information about the current drag.
dragState: {},
onDragStart: function (draggie, event, pointer) {
var ele = $(draggie.element);
this.dragState = {
// Which element will be dropped into/onto on success
dropDestination: null,
// How we attach to the destination: 'before', 'after', 'prepend'
attachMethod: '',
// If dragging to an empty section, the parent section
parentList: null,
// The y location of the last dragMove event (to determine direction).
lastY: 0,
// The direction the drag is moving in (negative means up, positive down).
dragDirection: 0
};
if (!ele.hasClass('collapsed')) {
ele.addClass('collapsed');
ele.find('.expand-collapse').first().addClass('expand').removeClass('collapse');
// onDragStart gets called again after the collapse, so we can't just store a variable in the dragState.
ele.addClass(this.expandOnDropClass);
}
},
onDragMove: function (draggie, event, pointer) {
// Handle scrolling of the browser.
var scrollAmount = 0;
var dragBuffer = 10;
if (window.innerHeight - dragBuffer < pointer.clientY) {
scrollAmount = dragBuffer;
}
else if (dragBuffer > pointer.clientY) {
scrollAmount = -(dragBuffer);
}
if (scrollAmount !== 0) {
window.scrollBy(0, scrollAmount);
return;
}
var yChange = draggie.dragPoint.y - this.dragState.lastY;
if (yChange !== 0) {
this.dragState.direction = yChange;
}
this.dragState.lastY = draggie.dragPoint.y;
var ele = $(draggie.element);
var destinationInfo = this.findDestination(ele, this.dragState.direction);
var destinationEle = destinationInfo.ele;
this.dragState.parentList = destinationInfo.parentList;
// Clear out the old destination
if (this.dragState.dropDestination) {
this.dragState.dropDestination.removeClass(this.droppableClasses);
}
// Mark the new destination
if (destinationEle && this.pointerInBounds(pointer, ele)) {
ele.addClass(this.validDropClass);
destinationEle.addClass('drop-target drop-target-' + destinationInfo.attachMethod);
this.dragState.attachMethod = destinationInfo.attachMethod;
this.dragState.dropDestination = destinationEle;
}
else {
ele.removeClass(this.validDropClass);
this.dragState.attachMethod = '';
this.dragState.dropDestination = null;
}
},
onDragEnd: function (draggie, event, pointer) {
var ele = $(draggie.element);
var destination = this.dragState.dropDestination;
// Clear dragging state in preparation for the next event.
if (destination) {
destination.removeClass(this.droppableClasses);
}
ele.removeClass(this.validDropClass);
// If the drag succeeded, rearrange the DOM and send the result.
if (destination && this.pointerInBounds(pointer, ele)) {
// Make sure we don't drop into a collapsed element
if (this.dragState.parentList) {
this.expandElement(this.dragState.parentList);
}
var method = this.dragState.attachMethod;
destination[method](ele);
this.handleReorder(ele);
}
// If the drag failed, send it back
else {
$('.was-dragging').removeClass('was-dragging');
ele.addClass('was-dragging');
}
if (ele.hasClass(this.expandOnDropClass)) {
this.expandElement(ele);
ele.removeClass(this.expandOnDropClass);
}
// Everything in its right place
ele.css({
top: 'auto',
left: 'auto'
});
this.dragState = {};
},
pointerInBounds: function (pointer, ele) {
return pointer.clientX >= ele.offset().left && pointer.clientX < ele.offset().left + ele.width();
},
expandElement: function (ele) {
ele.removeClass('collapsed');
ele.find('.expand-collapse').first().removeClass('expand').addClass('collapse');
},
/*
* Find all parent-child changes and save them.
*/
handleReorder: function (ele) {
var parentSelector = ele.data('parent-location-selector');
var childrenSelector = ele.data('child-selector');
var newParentEle = ele.parents(parentSelector).first();
var newParentLocator = newParentEle.data('locator');
var oldParentLocator = ele.data('parent');
// If the parent has changed, update the children of the old parent.
if (newParentLocator !== oldParentLocator) {
// Find the old parent element.
var oldParentEle = $(parentSelector).filter(function () {
return $(this).data('locator') === oldParentLocator;
});
this.saveItem(oldParentEle, childrenSelector, function () {
ele.data('parent', newParentLocator);
});
}
var saving = new NotificationView.Mini({
title: gettext('Saving&hellip;')
});
saving.show();
ele.addClass('was-dropped');
// Timeout interval has to match what is in the CSS.
setTimeout(function () {
ele.removeClass('was-dropped');
}, 1000);
this.saveItem(newParentEle, childrenSelector, function () {
saving.hide();
});
},
/*
* Actually save the update to the server. Takes the element
* representing the parent item to save, a CSS selector to find
* its children, and a success callback.
*/
saveItem: function (ele, childrenSelector, success) {
// Find all current child IDs.
var children = _.map(
ele.find(childrenSelector),
function (child) {
return $(child).data('locator');
}
);
$.ajax({
url: ModuleUtils.getUpdateUrl(ele.data('locator')),
type: 'PUT',
dataType: 'json',
contentType: 'application/json',
data: JSON.stringify({
children: children
}),
success: success
});
},
/*
* Make `type` draggable using `handleClass`, able to be dropped
* into `droppableClass`, and with parent type
* `parentLocationSelector`.
*/
makeDraggable: function (type, handleClass, droppableClass, parentLocationSelector) {
_.each(
$(type),
function (ele) {
// Remember data necessary to reconstruct the parent-child relationships
$(ele).data('droppable-class', droppableClass);
$(ele).data('parent-location-selector', parentLocationSelector);
$(ele).data('child-selector', type);
var draggable = new Draggabilly(ele, {
handle: handleClass,
containment: '.wrapper-dnd'
});
draggable.on('dragStart', _.bind(overviewDragger.onDragStart, overviewDragger));
draggable.on('dragMove', _.bind(overviewDragger.onDragMove, overviewDragger));
draggable.on('dragEnd', _.bind(overviewDragger.onDragEnd, overviewDragger));
}
);
}
};
domReady(function() {
// toggling overview section details
......@@ -566,21 +228,21 @@ define(["domReady", "jquery", "jquery.ui", "underscore", "gettext", "js/views/fe
$('.new-subsection-item').bind('click', addNewSubsection);
// Section
overviewDragger.makeDraggable(
ContentDragger.makeDraggable(
'.courseware-section',
'.section-drag-handle',
'.courseware-overview',
'article.courseware-overview'
);
// Subsection
overviewDragger.makeDraggable(
ContentDragger.makeDraggable(
'.id-holder',
'.subsection-drag-handle',
'.subsection-list > ol',
'.courseware-section'
);
// Unit
overviewDragger.makeDraggable(
ContentDragger.makeDraggable(
'.unit',
'.unit-drag-handle',
'ol.sortable-unit-list',
......@@ -589,7 +251,6 @@ define(["domReady", "jquery", "jquery.ui", "underscore", "gettext", "js/views/fe
});
return {
overviewDragger: overviewDragger,
saveSetSectionScheduleDate: saveSetSectionScheduleDate
};
});
cms/templates/js/mock/mock-outline.underscore 0 → 100644
<section>
<ol class="sortable-subsection-list">
<li class="courseware-subsection is-collapsible id-holder is-draggable" id="subsection-0" data-locator="subsection-0-id" style="margin:5px">
<ol class="sortable-unit-list" id="subsection-list-0">
<li class="courseware-unit unit is-draggable" id="unit-0" data-parent="subsection-0-id" data-locator="zero-unit-id"></li>
</ol>
</li>
<li class="courseware-subsection is-collapsible id-holder is-draggable" id="subsection-1" data-locator="subsection-1-id" style="margin:5px">
<ol class="sortable-unit-list" id="subsection-list-1">
<li class="courseware-unit unit is-draggable" id="unit-1" data-parent="subsection-1-id" data-locator="first-unit-id"></li>
<li class="courseware-unit unit is-draggable" id="unit-2" data-parent="subsection-1-id" data-locator="second-unit-id"></li>
<li class="courseware-unit unit is-draggable" id="unit-3" data-parent="subsection-1-id" data-locator="third-unit-id"></li>
</ol>
</li>
<li class="courseware-subsection is-collapsible id-holder is-draggable" id="subsection-2" data-locator="subsection-2-id" style="margin:5px">
<ol class="sortable-unit-list" id="subsection-list-2">
<li class="courseware-unit unit is-draggable" id="unit-4" data-parent="subsection-2" data-locator="fourth-unit-id"></li>
</ol>
</li>
<li class="courseware-subsection is-collapsible id-holder is-draggable" id="subsection-3" data-locator="subsection-3-id" style="margin:5px">
<ol class="sortable-unit-list" id="subsection-list-3"></ol>
</li>
<li class="courseware-subsection is-collapsible id-holder is-draggable" id="subsection-4" data-locator="subsection-4-id" style="margin:5px">
<ol class="sortable-unit-list" id="subsection-list-4">
<li class="courseware-unit unit is-draggable" id="unit-5" data-parent="subsection-4-id" data-locator="fifth-unit-id"></li>
</ol>
</li>
</ol>
</section>
\ No newline at end of file
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