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- Switched to plain JavaScript - Tested the image pasting functionality and it works as before # Demo using JavaScript without jQuery ![demo](https://github.com/go-gitea/gitea/assets/20454870/018993ff-7b09-4d5f-88e0-f276368bacd6) Signed-off-by: Yarden Shoham <git@yardenshoham.com> (cherry picked from commit f390d5eb4f4db21eeacdf2e7a093f6bd4e87c96f)
148 lines
4.6 KiB
JavaScript
148 lines
4.6 KiB
JavaScript
import {htmlEscape} from 'escape-goat';
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import {POST} from '../../modules/fetch.js';
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import {imageInfo} from '../../utils/image.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 uploadUrl = dropzone.getAttribute('data-upload-url');
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const filesContainer = dropzone.querySelector('.files');
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if (!uploadUrl || !filesContainer) 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 = `![${name}](uploading ...)`;
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editor.insertPlaceholder(placeholder);
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const {uuid} = await uploadFile(img, uploadUrl);
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const {width, dppx} = await imageInfo(img);
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const url = `/attachments/${uuid}`;
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let text;
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if (width > 0 && dppx > 1) {
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// Scale down images from HiDPI monitors. This uses the <img> tag because it's the only
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// method to change image size in Markdown that is supported by all implementations.
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text = `<img width="${Math.round(width / dppx)}" alt="${htmlEscape(name)}" src="${htmlEscape(url)}">`;
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} else {
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text = `![${name}](${url})`;
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}
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editor.replacePlaceholder(placeholder, text);
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const input = document.createElement('input');
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input.setAttribute('name', 'files');
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input.setAttribute('type', 'hidden');
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input.setAttribute('id', uuid);
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input.value = uuid;
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filesContainer.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.addEventListener('paste', async (e) => {
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return uploadClipboardImage(new TextareaEditor(textarea), dropzone, e);
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});
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}
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