Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

chore: iframe rendering optimization #35959

Open
wants to merge 5 commits into
base: master
Choose a base branch
from
+173 −22
Open

chore: iframe rendering optimization #35959

Changes from 4 commits
Commits
Show all changes
5 commits
Select commit Hold shift + click to select a range
426c75f
chore: iframe rendering optimization
PKulkoRaccoonGang Dec 4, 2024
084a1c6
refactor: corrected scroll to target xblock
PKulkoRaccoonGang Dec 9, 2024
84bddf2
refactor: fixed scroll behavior to xblock element
PKulkoRaccoonGang Jan 13, 2025
64c4b07
refactor: after review
PKulkoRaccoonGang Jan 22, 2025
3cdc6af
refactor: refactored event listeners
PKulkoRaccoonGang Jan 27, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
192 changes: 170 additions & 22 deletions cms/static/js/views/pages/container.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -131,10 +131,40 @@ function($, _, Backbone, gettext, BasePage,

if (this.options.isIframeEmbed) {
window.addEventListener('message', (event) => {
if (event.data && event.data.type === 'refreshXBlock') {
this.render();
}
});
const { data } = event;

if (!data) return;

let xblockElement;
let xblockWrapper;

if (data.payload && data.payload.locator) {
xblockElement = $(`[data-locator="${data.payload.locator}"]`);
xblockWrapper = $("li.studio-xblock-wrapper[data-locator='" + data.payload.locator + "']");
} else {
xblockWrapper = $();
}

switch (data.type) {
case 'refreshXBlock':
this.render();
break;
case 'completeManageXBlockAccess':
this.refreshXBlock(xblockElement, false);
break;
case 'completeXBlockMoving':
xblockWrapper.hide();
break;
case 'rollbackMovedXBlock':
xblockWrapper.show();
break;
case 'addXBlock':
this.createComponent(this, xblockElement, data);
break;
default:
console.warn('Unhandled message type:', data.type);
}
});
}

this.listenTo(Backbone, 'move:onXBlockMoved', this.onXBlockMoved);
Expand Down Expand Up @@ -199,6 +229,25 @@ function($, _, Backbone, gettext, BasePage,
target.scrollIntoView({ behavior: 'smooth', inline: 'center' });
}

if (self.options.isIframeEmbed) {
const scrollOffsetString = localStorage.getItem('modalEditLastYPosition');
const scrollOffset = scrollOffsetString ? parseInt(scrollOffsetString, 10) : 0;

if (scrollOffset) {
try {
window.parent.postMessage(
{
type: 'scrollToXBlock',
message: 'Scroll to XBlock',
payload: { scrollOffset }
}, document.referrer
);
localStorage.removeItem('modalEditLastYPosition');
} catch (e) {
console.error(e);
}
}
}
},
block_added: options && options.block_added
});
Expand Down Expand Up @@ -395,8 +444,16 @@ function($, _, Backbone, gettext, BasePage,
const isAccessButton = event.currentTarget.className === 'access-button';
const primaryHeader = $(event.target).closest('.xblock-header-primary, .nav-actions');
const usageId = encodeURI(primaryHeader.attr('data-usage-id'));

try {
if (this.options.isIframeEmbed && isAccessButton) {
window.parent.postMessage(
{
type: 'toggleCourseXBlockDropdown',
message: 'Adjust the height of the dropdown menu',
payload: { courseXBlockDropdownHeight: 0 }
}, document.referrer
);
return window.parent.postMessage(
{
type: 'manageXBlockAccess',
Expand All @@ -422,11 +479,12 @@ function($, _, Backbone, gettext, BasePage,
|| (useNewProblemEditor === 'True' && blockType === 'problem')
) {
var destinationUrl = primaryHeader.attr('authoring_MFE_base_url')
+ '/' + blockType
+ '/' + encodeURI(primaryHeader.attr('data-usage-id'));
+ '/' + blockType
+ '/' + encodeURI(primaryHeader.attr('data-usage-id'));

try {
if (this.options.isIframeEmbed) {
localStorage.setItem('modalEditLastYPosition', event.clientY.toString());
return window.parent.postMessage(
{
type: 'newXBlockEditor',
Expand Down Expand Up @@ -615,7 +673,7 @@ function($, _, Backbone, gettext, BasePage,
type: 'toggleCourseXBlockDropdown',
message: 'Adjust the height of the dropdown menu',
payload: {
courseXBlockDropdownHeight: courseXBlockDropdownHeight / 2,
courseXBlockDropdownHeight: courseXBlockDropdownHeight / 2,
},
}, document.referrer
);
Expand Down Expand Up @@ -735,13 +793,26 @@ function($, _, Backbone, gettext, BasePage,
const usageId = encodeURI(primaryHeader.attr('data-usage-id'));
try {
if (this.options.isIframeEmbed) {
return window.parent.postMessage(
window.parent.postMessage(
{
type: 'duplicateXBlock',
message: 'Duplicate the XBlock',
payload: { blockType, usageId }
}, document.referrer
);
window.parent.postMessage(
{
type: 'toggleCourseXBlockDropdown',
message: 'Adjust the height of the dropdown menu',
payload: { courseXBlockDropdownHeight: 0 }
}, document.referrer
);
// Saves the height of the XBlock during duplication with the new editor.
// After closing the editor, the page scrolls to the newly created copy of the XBlock.
if (['html', 'problem', 'video'].includes(blockType)) {
const scrollHeight = event.clientY + this.findXBlockElement(event.target).height();
localStorage.setItem('modalEditLastYPosition', scrollHeight.toString());
}
bradenmacdonald marked this conversation as resolved.
Show resolved Hide resolved
}
} catch (e) {
console.error(e);
Expand All @@ -768,17 +839,24 @@ function($, _, Backbone, gettext, BasePage,
type: 'showMoveXBlockModal',
payload: {
sourceXBlockInfo: {
id: sourceXBlockInfo.attributes.id,
displayName: sourceXBlockInfo.attributes.display_name,
id: sourceXBlockInfo.attributes.id,
displayName: sourceXBlockInfo.attributes.display_name,
},
sourceParentXBlockInfo: {
id: sourceParentXBlockInfo.attributes.id,
category: sourceParentXBlockInfo.attributes.category,
hasChildren: sourceParentXBlockInfo.attributes.has_children,
id: sourceParentXBlockInfo.attributes.id,
category: sourceParentXBlockInfo.attributes.category,
hasChildren: sourceParentXBlockInfo.attributes.has_children,
},
},
}, document.referrer
);
window.parent.postMessage(
{
type: 'toggleCourseXBlockDropdown',
message: 'Adjust the height of the dropdown menu',
payload: { courseXBlockDropdownHeight: 0 }
}, document.referrer
);
return true;
}
} catch (e) {
Expand All @@ -795,35 +873,63 @@ function($, _, Backbone, gettext, BasePage,
const usageId = encodeURI(primaryHeader.attr('data-usage-id'));
try {
if (this.options.isIframeEmbed) {
return window.parent.postMessage(
window.parent.postMessage(
{
type: 'deleteXBlock',
message: 'Delete the XBlock',
payload: { usageId }
}, document.referrer
);
window.parent.postMessage(
{
type: 'toggleCourseXBlockDropdown',
message: 'Adjust the height of the dropdown menu',
payload: { courseXBlockDropdownHeight: 0 }
}, document.referrer
);
}
} catch (e) {
console.error(e);
}
this.deleteComponent(this.findXBlockElement(event.target));
},

createComponent: function(template, target) {
createPlaceholderElement: function() {
return $('<div/>', {class: 'studio-xblock-wrapper'});
},

createComponent: function(template, target, iframeMessageData) {
// A placeholder element is created in the correct location for the new xblock
// and then onNewXBlock will replace it with a rendering of the xblock. Note that
// for xblocks that can't be replaced inline, the entire parent will be refreshed.
var parentElement = this.findXBlockElement(target),
parentLocator = parentElement.data('locator'),
buttonPanel = target.closest('.add-xblock-component'),
listPanel = buttonPanel.prev(),
scrollOffset = ViewUtils.getScrollOffset(buttonPanel),
buttonPanel = target?.closest('.add-xblock-component'),
listPanel = buttonPanel?.prev(),
$placeholderEl = $(this.createPlaceholderElement()),
requestData = _.extend(template, {
parent_locator: parentLocator
}),
placeholderElement;
placeholderElement = $placeholderEl.appendTo(listPanel);
scrollOffset,
placeholderElement,
$container;

if (this.options.isIframeEmbed) {
$container = $('ol.reorderable-container.ui-sortable');
scrollOffset = 0;
} else {
$container = listPanel;
scrollOffset = ViewUtils.getScrollOffset(buttonPanel);
}

placeholderElement = $placeholderEl.appendTo($container);

if (this.options.isIframeEmbed) {
if (iframeMessageData.payload.data && iframeMessageData.type === 'addXBlock') {
return this.onNewXBlock(placeholderElement, scrollOffset, false, iframeMessageData.payload.data);
}
}

return $.postJSON(this.getURLRoot() + '/', requestData,
_.bind(this.onNewXBlock, this, placeholderElement, scrollOffset, false))
.fail(function() {
Expand All @@ -843,6 +949,30 @@ function($, _, Backbone, gettext, BasePage,
placeholderElement;

placeholderElement = $placeholderEl.insertAfter(xblockElement);

if (this.options.isIframeEmbed) {
try {
window.parent.postMessage(
{
type: 'scrollToXBlock',
message: 'Scroll to XBlock',
payload: { scrollOffset: xblockElement.height() }
}, document.referrer
);
} catch (e) {
console.error(e);
}
return window.addEventListener(
'message',
(event) => {
if (event.data && event.data.type === 'completeXBlockDuplicating') {
return self.onNewXBlock(placeholderElement, null, true, event.data.payload);
}
},
{ once: true }
);
bradenmacdonald marked this conversation as resolved.
Show resolved Hide resolved
}

XBlockUtils.duplicateXBlock(xblockElement, parentElement)
.done(function(data) {
self.onNewXBlock(placeholderElement, scrollOffset, true, data);
Expand All @@ -858,6 +988,20 @@ function($, _, Backbone, gettext, BasePage,
xblockInfo = new XBlockInfo({
id: xblockElement.data('locator')
});

if (this.options.isIframeEmbed) {
return window.addEventListener(
'message',
({ data }) => {
if (data && data.type === 'completeXBlockDeleting') {
const targetXBlockElement = $(`[data-locator="${data.payload.locator}"]`);
return self.onDelete(targetXBlockElement);
}
},
{ once: true }
);
}

XBlockUtils.deleteXBlock(xblockInfo).done(function() {
self.onDelete(xblockElement);
});
Expand Down Expand Up @@ -986,7 +1130,9 @@ function($, _, Backbone, gettext, BasePage,
window.location.href = destinationUrl;
return;
}
ViewUtils.setScrollOffset(xblockElement, scrollOffset);
if (!this.options.isIframeEmbed) {
ViewUtils.setScrollOffset(xblockElement, scrollOffset);
}
xblockElement.data('locator', data.locator);
return this.refreshXBlock(xblockElement, true, is_duplicate);
},
Expand All @@ -1003,7 +1149,9 @@ function($, _, Backbone, gettext, BasePage,
parentElement = xblockElement.parent(),
rootLocator = this.xblockView.model.id;
if (xblockElement.length === 0 || xblockElement.data('locator') === rootLocator) {
this.render({refresh: true, block_added: block_added});
if (block_added) {
this.render({refresh: true, block_added: block_added});
}
} else if (parentElement.hasClass('reorderable-container')) {
this.refreshChildXBlock(xblockElement, block_added, is_duplicate);
} else {
Expand Down
Loading