133 lines
4.0 KiB
JavaScript
133 lines
4.0 KiB
JavaScript
import $ from 'jquery';
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import {POST} from '../../modules/fetch.js';
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async function uploadFile(file, uploadUrl) {
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const formData = new FormData();
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formData.append('file', file, file.name);
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const res = await POST(uploadUrl, {data: formData});
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return await res.json();
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}
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function clipboardPastedImages(e) {
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if (!e.clipboardData) return [];
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const files = [];
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for (const item of e.clipboardData.items || []) {
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if (!item.type || !item.type.startsWith('image/')) continue;
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files.push(item.getAsFile());
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}
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return files;
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}
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function triggerEditorContentChanged(target) {
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target.dispatchEvent(new CustomEvent('ce-editor-content-changed', {bubbles: true}));
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}
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class TextareaEditor {
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constructor(editor) {
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this.editor = editor;
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}
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insertPlaceholder(value) {
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const editor = this.editor;
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const startPos = editor.selectionStart;
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const endPos = editor.selectionEnd;
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editor.value = editor.value.substring(0, startPos) + value + editor.value.substring(endPos);
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editor.selectionStart = startPos;
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editor.selectionEnd = startPos + value.length;
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editor.focus();
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triggerEditorContentChanged(editor);
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}
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replacePlaceholder(oldVal, newVal) {
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const editor = this.editor;
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const startPos = editor.selectionStart;
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const endPos = editor.selectionEnd;
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if (editor.value.substring(startPos, endPos) === oldVal) {
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editor.value = editor.value.substring(0, startPos) + newVal + editor.value.substring(endPos);
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editor.selectionEnd = startPos + newVal.length;
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} else {
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editor.value = editor.value.replace(oldVal, newVal);
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editor.selectionEnd -= oldVal.length;
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editor.selectionEnd += newVal.length;
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}
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editor.selectionStart = editor.selectionEnd;
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editor.focus();
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triggerEditorContentChanged(editor);
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}
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}
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class CodeMirrorEditor {
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constructor(editor) {
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this.editor = editor;
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}
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insertPlaceholder(value) {
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const editor = this.editor;
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const startPoint = editor.getCursor('start');
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const endPoint = editor.getCursor('end');
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editor.replaceSelection(value);
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endPoint.ch = startPoint.ch + value.length;
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editor.setSelection(startPoint, endPoint);
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editor.focus();
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triggerEditorContentChanged(editor.getTextArea());
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}
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replacePlaceholder(oldVal, newVal) {
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const editor = this.editor;
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const endPoint = editor.getCursor('end');
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if (editor.getSelection() === oldVal) {
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editor.replaceSelection(newVal);
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} else {
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editor.setValue(editor.getValue().replace(oldVal, newVal));
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}
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endPoint.ch -= oldVal.length;
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endPoint.ch += newVal.length;
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editor.setSelection(endPoint, endPoint);
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editor.focus();
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triggerEditorContentChanged(editor.getTextArea());
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}
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}
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const uploadClipboardImage = async (editor, dropzone, e) => {
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const $dropzone = $(dropzone);
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const uploadUrl = $dropzone.attr('data-upload-url');
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const $files = $dropzone.find('.files');
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if (!uploadUrl || !$files.length) return;
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const pastedImages = clipboardPastedImages(e);
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if (!pastedImages || pastedImages.length === 0) {
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return;
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}
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e.preventDefault();
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e.stopPropagation();
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for (const img of pastedImages) {
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const name = img.name.slice(0, img.name.lastIndexOf('.'));
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const placeholder = ``;
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editor.insertPlaceholder(placeholder);
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const data = await uploadFile(img, uploadUrl);
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editor.replacePlaceholder(placeholder, ``);
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const $input = $(`<input name="files" type="hidden">`).attr('id', data.uuid).val(data.uuid);
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$files.append($input);
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}
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};
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export function initEasyMDEImagePaste(easyMDE, dropzone) {
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if (!dropzone) return;
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easyMDE.codemirror.on('paste', async (_, e) => {
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return uploadClipboardImage(new CodeMirrorEditor(easyMDE.codemirror), dropzone, e);
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});
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}
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export function initTextareaImagePaste(textarea, dropzone) {
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if (!dropzone) return;
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$(textarea).on('paste', async (e) => {
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return uploadClipboardImage(new TextareaEditor(textarea), dropzone, e.originalEvent);
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});
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}
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