BookStack/resources/js/components/image-manager.js

297 lines
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JavaScript
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2023-10-02 01:13:54 +08:00
import {
onChildEvent, onSelect, removeLoading, showLoading,
} from '../services/dom';
import {Component} from './component';
export class ImageManager extends Component {
setup() {
// Options
this.uploadedTo = this.$opts.uploadedTo;
// Element References
this.container = this.$el;
this.popupEl = this.$refs.popup;
this.searchForm = this.$refs.searchForm;
this.searchInput = this.$refs.searchInput;
this.cancelSearch = this.$refs.cancelSearch;
this.listContainer = this.$refs.listContainer;
this.filterTabs = this.$manyRefs.filterTabs;
this.selectButton = this.$refs.selectButton;
this.uploadButton = this.$refs.uploadButton;
this.uploadHint = this.$refs.uploadHint;
this.formContainer = this.$refs.formContainer;
this.formContainerPlaceholder = this.$refs.formContainerPlaceholder;
this.dropzoneContainer = this.$refs.dropzoneContainer;
this.loadMore = this.$refs.loadMore;
// Instance data
this.type = 'gallery';
this.lastSelected = {};
this.lastSelectedTime = 0;
this.callback = null;
this.resetState = () => {
this.hasData = false;
this.page = 1;
this.filter = 'all';
};
this.resetState();
this.setupListeners();
}
setupListeners() {
// Filter tab click
onSelect(this.filterTabs, e => {
this.resetAll();
this.filter = e.target.dataset.filter;
this.setActiveFilterTab(this.filter);
this.loadGallery();
});
// Search submit
this.searchForm.addEventListener('submit', event => {
this.resetListView();
this.loadGallery();
this.cancelSearch.toggleAttribute('hidden', !this.searchInput.value);
event.preventDefault();
});
// Cancel search button
onSelect(this.cancelSearch, () => {
this.resetListView();
this.resetSearchView();
this.loadGallery();
});
// Load more button click
onChildEvent(this.container, '.load-more button', 'click', this.runLoadMore.bind(this));
// Select image event
this.listContainer.addEventListener('event-emit-select-image', this.onImageSelectEvent.bind(this));
// Image load error handling
this.listContainer.addEventListener('error', event => {
event.target.src = window.baseUrl('loading_error.png');
}, true);
// Footer select button click
onSelect(this.selectButton, () => {
if (this.callback) {
this.callback(this.lastSelected);
}
this.hide();
});
// Delete button click
onChildEvent(this.formContainer, '#image-manager-delete', 'click', () => {
if (this.lastSelected) {
this.loadImageEditForm(this.lastSelected.id, true);
}
});
// Rebuild thumbs click
onChildEvent(this.formContainer, '#image-manager-rebuild-thumbs', 'click', async (_, button) => {
button.disabled = true;
if (this.lastSelected) {
await this.rebuildThumbnails(this.lastSelected.id);
}
button.disabled = false;
});
// Edit form submit
this.formContainer.addEventListener('ajax-form-success', () => {
this.refreshGallery();
this.resetEditForm();
});
// Image upload success
this.container.addEventListener('dropzone-upload-success', this.refreshGallery.bind(this));
// Auto load-more on scroll
const scrollZone = this.listContainer.parentElement;
let scrollEvents = [];
scrollZone.addEventListener('wheel', event => {
const scrollOffset = Math.ceil(scrollZone.scrollHeight - scrollZone.scrollTop);
const bottomedOut = scrollOffset === scrollZone.clientHeight;
if (!bottomedOut || event.deltaY < 1) {
return;
}
const secondAgo = Date.now() - 1000;
scrollEvents.push(Date.now());
scrollEvents = scrollEvents.filter(d => d >= secondAgo);
if (scrollEvents.length > 5 && this.canLoadMore()) {
this.runLoadMore();
}
});
}
show(callback, type = 'gallery') {
this.resetAll();
this.callback = callback;
this.type = type;
this.getPopup().show();
const hideUploads = type !== 'gallery';
this.dropzoneContainer.classList.toggle('hidden', hideUploads);
this.uploadButton.classList.toggle('hidden', hideUploads);
this.uploadHint.classList.toggle('hidden', hideUploads);
/** @var {Dropzone} * */
const dropzone = window.$components.firstOnElement(this.container, 'dropzone');
dropzone.toggleActive(!hideUploads);
if (!this.hasData) {
this.loadGallery();
this.hasData = true;
}
}
hide() {
this.getPopup().hide();
}
/**
* @returns {Popup}
*/
getPopup() {
return window.$components.firstOnElement(this.popupEl, 'popup');
}
async loadGallery() {
const params = {
page: this.page,
search: this.searchInput.value || null,
uploaded_to: this.uploadedTo,
filter_type: this.filter === 'all' ? null : this.filter,
};
const {data: html} = await window.$http.get(`images/${this.type}`, params);
if (params.page === 1) {
this.listContainer.innerHTML = '';
}
this.addReturnedHtmlElementsToList(html);
removeLoading(this.listContainer);
}
addReturnedHtmlElementsToList(html) {
const el = document.createElement('div');
el.innerHTML = html;
const loadMore = el.querySelector('.load-more');
if (loadMore) {
loadMore.remove();
this.loadMore.innerHTML = loadMore.innerHTML;
}
this.loadMore.toggleAttribute('hidden', !loadMore);
window.$components.init(el);
for (const child of [...el.children]) {
this.listContainer.appendChild(child);
}
}
setActiveFilterTab(filterName) {
for (const tab of this.filterTabs) {
const selected = tab.dataset.filter === filterName;
tab.setAttribute('aria-selected', selected ? 'true' : 'false');
}
}
resetAll() {
this.resetState();
this.resetListView();
this.resetSearchView();
this.resetEditForm();
this.setActiveFilterTab('all');
this.selectButton.classList.add('hidden');
}
resetSearchView() {
this.searchInput.value = '';
this.cancelSearch.toggleAttribute('hidden', true);
}
resetEditForm() {
this.formContainer.innerHTML = '';
this.formContainerPlaceholder.removeAttribute('hidden');
}
resetListView() {
showLoading(this.listContainer);
this.page = 1;
}
refreshGallery() {
this.resetListView();
this.loadGallery();
}
async onImageSelectEvent(event) {
let image = JSON.parse(event.detail.data);
const isDblClick = ((image && image.id === this.lastSelected.id)
&& Date.now() - this.lastSelectedTime < 400);
const alreadySelected = event.target.classList.contains('selected');
[...this.listContainer.querySelectorAll('.selected')].forEach(el => {
el.classList.remove('selected');
});
if (!alreadySelected && !isDblClick) {
event.target.classList.add('selected');
image = await this.loadImageEditForm(image.id);
} else if (!isDblClick) {
this.resetEditForm();
} else if (isDblClick) {
image = this.lastSelected;
}
this.selectButton.classList.toggle('hidden', alreadySelected);
if (isDblClick && this.callback) {
this.callback(image);
this.hide();
}
this.lastSelected = image;
this.lastSelectedTime = Date.now();
}
async loadImageEditForm(imageId, requestDelete = false) {
if (!requestDelete) {
this.formContainer.innerHTML = '';
}
const params = requestDelete ? {delete: true} : {};
const {data: formHtml} = await window.$http.get(`/images/edit/${imageId}`, params);
this.formContainer.innerHTML = formHtml;
this.formContainerPlaceholder.setAttribute('hidden', '');
window.$components.init(this.formContainer);
const imageDataEl = this.formContainer.querySelector('#image-manager-form-image-data');
return JSON.parse(imageDataEl.text);
}
runLoadMore() {
showLoading(this.loadMore);
this.page += 1;
this.loadGallery();
}
canLoadMore() {
return this.loadMore.querySelector('button') && !this.loadMore.hasAttribute('hidden');
}
async rebuildThumbnails(imageId) {
try {
const response = await window.$http.put(`/images/${imageId}/rebuild-thumbnails`);
window.$events.success(response.data);
this.refreshGallery();
} catch (err) {
window.$events.showResponseError(err);
}
}
}