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

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JavaScript
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import {onChildEvent, onSelect, removeLoading, showLoading} from "../services/dom";
/**
* ImageManager
* @extends {Component}
*/
class ImageManager {
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.$refs.selectButton;
this.formContainer = this.$refs.formContainer;
this.dropzoneContainer = this.$refs.dropzoneContainer;
// 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();
window.ImageManager = this;
}
setupListeners() {
onSelect(this.filterTabs, e => {
this.resetAll();
this.filter = e.target.dataset.filter;
this.setActiveFilterTab(this.filter);
this.loadGallery();
});
this.searchForm.addEventListener('submit', event => {
this.resetListView();
this.loadGallery();
event.preventDefault();
});
onSelect(this.cancelSearch, event => {
this.resetListView();
this.resetSearchView();
this.loadGallery();
this.cancelSearch.classList.remove('active');
});
this.searchInput.addEventListener('input', event => {
this.cancelSearch.classList.toggle('active', this.searchInput.value.trim());
});
onChildEvent(this.listContainer, '.load-more', 'click', async event => {
showLoading(event.target);
this.page++;
await this.loadGallery();
event.target.remove();
});
this.listContainer.addEventListener('event-emit-select-image', this.onImageSelectEvent.bind(this));
this.listContainer.addEventListener('error', event => {
event.target.src = baseUrl('loading_error.png');
}, true);
onSelect(this.selectButton, () => {
if (this.callback) {
this.callback(this.lastSelected);
}
this.hide();
});
onChildEvent(this.formContainer, '#image-manager-delete', 'click', event => {
if (this.lastSelected) {
this.loadImageEditForm(this.lastSelected.id, true);
}
});
this.formContainer.addEventListener('ajax-form-success', this.refreshGallery.bind(this));
this.container.addEventListener('dropzone-success', this.refreshGallery.bind(this));
}
show(callback, type = 'gallery') {
this.resetAll();
this.callback = callback;
this.type = type;
this.popupEl.components.popup.show();
this.dropzoneContainer.classList.toggle('hidden', type !== 'gallery');
if (!this.hasData) {
this.loadGallery();
this.hasData = true;
}
}
hide() {
this.popupEl.components.popup.hide();
}
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/${this.type}`, params);
if (params.page === 1) {
this.listContainer.innerHTML = '';
}
this.addReturnedHtmlElementsToList(html);
removeLoading(this.listContainer);
}
addReturnedHtmlElementsToList(html) {
const el = document.createElement('div');
el.innerHTML = html;
window.$components.init(el);
for (const child of [...el.children]) {
this.listContainer.appendChild(child);
}
}
setActiveFilterTab(filterName) {
this.filterTabs.forEach(t => t.classList.remove('selected'));
const activeTab = this.filterTabs.find(t => t.dataset.filter === filterName);
if (activeTab) {
activeTab.classList.add('selected');
}
}
resetAll() {
this.resetState();
this.resetListView();
this.resetSearchView();
this.resetEditForm();
this.setActiveFilterTab('all');
this.selectButton.classList.add('hidden');
}
resetSearchView() {
this.searchInput.value = '';
}
resetEditForm() {
this.formContainer.innerHTML = '';
}
resetListView() {
showLoading(this.listContainer);
this.page = 1;
}
refreshGallery() {
this.resetListView();
this.loadGallery();
}
onImageSelectEvent(event) {
const 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) {
event.target.classList.add('selected');
this.loadImageEditForm(image.id);
} else {
this.resetEditForm();
}
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;
window.$components.init(this.formContainer);
}
}
export default ImageManager;