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import $ from 'jquery';
import imageDiffHelper from './helpers/index';
import ImageBadge from './image_badge';
import { isImageLoaded } from '../lib/utils/image_utility';
export default class ImageDiff {
constructor(el, options) {
this.el = el;
this.canCreateNote = !!(options && options.canCreateNote);
this.renderCommentBadge = !!(options && options.renderCommentBadge);
this.$noteContainer = $('.note-container', this.el);
this.imageBadges = [];
}
init() {
this.imageFrameEl = this.el.querySelector('.diff-file .js-image-frame');
this.imageEl = this.imageFrameEl.querySelector('img');
this.bindEvents();
}
bindEvents() {
this.imageClickedWrapper = this.imageClicked.bind(this);
this.imageBlurredWrapper = imageDiffHelper.removeCommentIndicator.bind(null, this.imageFrameEl);
this.addBadgeWrapper = this.addBadge.bind(this);
this.removeBadgeWrapper = this.removeBadge.bind(this);
this.renderBadgesWrapper = this.renderBadges.bind(this);
// Render badges
if (isImageLoaded(this.imageEl)) {
this.renderBadges();
} else {
this.imageEl.addEventListener('load', this.renderBadgesWrapper);
}
// jquery makes the event delegation here much simpler
this.$noteContainer.on('click', '.js-diff-notes-toggle', imageDiffHelper.toggleCollapsed);
$(this.el).on('click', '.comment-indicator', imageDiffHelper.commentIndicatorOnClick);
if (this.canCreateNote) {
this.el.addEventListener('click.imageDiff', this.imageClickedWrapper);
this.el.addEventListener('blur.imageDiff', this.imageBlurredWrapper);
this.el.addEventListener('addBadge.imageDiff', this.addBadgeWrapper);
this.el.addEventListener('removeBadge.imageDiff', this.removeBadgeWrapper);
}
}
imageClicked(event) {
const customEvent = event.detail;
const selection = imageDiffHelper.getTargetSelection(customEvent);
const el = customEvent.currentTarget;
imageDiffHelper.setPositionDataAttribute(el, selection.actual);
imageDiffHelper.showCommentIndicator(this.imageFrameEl, selection.browser);
}
renderBadges() {
const discussionsEls = this.el.querySelectorAll('.note-container .discussion-notes .notes');
[...discussionsEls].forEach(this.renderBadge.bind(this));
}
renderBadge(discussionEl, index) {
const imageBadge = imageDiffHelper.generateBadgeFromDiscussionDOM(
this.imageFrameEl,
discussionEl,
);
this.imageBadges.push(imageBadge);
const options = {
coordinate: imageBadge.browser,
noteId: imageBadge.noteId,
};
if (this.renderCommentBadge) {
imageDiffHelper.addImageCommentBadge(this.imageFrameEl, options);
} else {
const numberBadgeOptions = Object.assign({}, options, {
badgeText: index + 1,
});
imageDiffHelper.addImageBadge(this.imageFrameEl, numberBadgeOptions);
}
}
addBadge(event) {
const { x, y, width, height, noteId, discussionId } = event.detail;
const badgeText = this.imageBadges.length + 1;
const imageBadge = new ImageBadge({
actual: {
x,
y,
width,
height,
},
imageEl: this.imageFrameEl.querySelector('img'),
noteId,
discussionId,
});
this.imageBadges.push(imageBadge);
imageDiffHelper.addImageBadge(this.imageFrameEl, {
coordinate: imageBadge.browser,
badgeText,
noteId,
});
imageDiffHelper.addAvatarBadge(this.el, {
detail: {
noteId,
badgeNumber: badgeText,
},
});
const discussionEl = this.el.querySelector(`#discussion_${discussionId}`);
imageDiffHelper.updateDiscussionBadgeNumber(discussionEl, badgeText);
}
removeBadge(event) {
const { badgeNumber } = event.detail;
const indexToRemove = badgeNumber - 1;
const imageBadgeEls = this.imageFrameEl.querySelectorAll('.badge');
if (this.imageBadges.length !== badgeNumber) {
// Cascade badges count numbers for (avatar badges + image badges)
this.imageBadges.forEach((badge, index) => {
if (index > indexToRemove) {
const { discussionId } = badge;
const updatedBadgeNumber = index;
const discussionEl = this.el.querySelector(`#discussion_${discussionId}`);
imageBadgeEls[index].innerText = updatedBadgeNumber;
imageDiffHelper.updateDiscussionBadgeNumber(discussionEl, updatedBadgeNumber);
imageDiffHelper.updateDiscussionAvatarBadgeNumber(discussionEl, updatedBadgeNumber);
}
});
}
this.imageBadges.splice(indexToRemove, 1);
const imageBadgeEl = imageBadgeEls[indexToRemove];
imageBadgeEl.remove();
}
}
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