first-commit

web_src/js/features/copycontent.ts

@@ -0,0 +1,54 @@
+import {clippie} from 'clippie';
+import {showTemporaryTooltip} from '../modules/tippy.ts';
+import {convertImage} from '../utils.ts';
+import {GET} from '../modules/fetch.ts';
+import {registerGlobalEventFunc} from '../modules/observer.ts';
+
+const {i18n} = window.config;
+
+export function initCopyContent() {
+  registerGlobalEventFunc('click', 'onCopyContentButtonClick', async (btn: HTMLElement) => {
+    if (btn.classList.contains('disabled') || btn.classList.contains('is-loading')) return;
+    const rawFileLink = btn.getAttribute('data-raw-file-link');
+
+    let content, isRasterImage = false;
+
+    // when "data-raw-link" is present, we perform a fetch. this is either because
+    // the text to copy is not in the DOM, or it is an image that should be
+    // fetched to copy in full resolution
+    if (rawFileLink) {
+      btn.classList.add('is-loading', 'loading-icon-2px');
+      try {
+        const res = await GET(rawFileLink, {credentials: 'include', redirect: 'follow'});
+        const contentType = res.headers.get('content-type');
+
+        if (contentType.startsWith('image/') && !contentType.startsWith('image/svg')) {
+          isRasterImage = true;
+          content = await res.blob();
+        } else {
+          content = await res.text();
+        }
+      } catch {
+        return showTemporaryTooltip(btn, i18n.copy_error);
+      } finally {
+        btn.classList.remove('is-loading', 'loading-icon-2px');
+      }
+    } else { // text, read from DOM
+      const lineEls = document.querySelectorAll('.file-view .lines-code');
+      content = Array.from(lineEls, (el) => el.textContent).join('');
+    }
+
+    // try copy original first, if that fails, and it's an image, convert it to png
+    const success = await clippie(content);
+    if (success) {
+      showTemporaryTooltip(btn, i18n.copy_success);
+    } else {
+      if (isRasterImage) {
+        const success = await clippie(await convertImage(content as Blob, 'image/png'));
+        showTemporaryTooltip(btn, success ? i18n.copy_success : i18n.copy_error);
+      } else {
+        showTemporaryTooltip(btn, i18n.copy_error);
+      }
+    }
+  });
+}