| <!DOCTYPE> |
| <html> |
| <script> |
| function loadText(blob) { |
| return new Promise((resolve, reject) => { |
| const reader = new FileReader; |
| reader.addEventListener("load", () => resolve(reader.result), { once: true }); |
| reader.addEventListener("error", reject, { once: true }); |
| reader.readAsText(blob); |
| }); |
| } |
| |
| function loadImage(blob) { |
| return new Promise((resolve, reject) => { |
| const image = new Image; |
| image.addEventListener("load", () => resolve(image), { once: true }); |
| image.addEventListener("error", reject, { once: true }); |
| image.src = URL.createObjectURL(blob); |
| }); |
| } |
| |
| function loadDocument(blob) { |
| return new Promise(async resolve => { |
| resolve(new DOMParser().parseFromString(await loadText(blob), "text/html")); |
| }); |
| } |
| |
| clipboardData = []; |
| exception = null; |
| |
| async function writeStringToClipboard(type, string) { |
| try { |
| const itemData = {}; |
| itemData[type] = string; |
| await navigator.clipboard.write([new ClipboardItem(itemData)]); |
| } catch (e) { |
| exception = e; |
| } finally { |
| webkit.messageHandlers.testHandler.postMessage("wroteStringToClipboard"); |
| } |
| } |
| |
| async function readClipboard() { |
| try { |
| const items = await navigator.clipboard.read(); |
| for (const item of items) { |
| let itemData = {}; |
| for (const type of item.types) { |
| const blob = await item.getType(type); |
| if (type === "text/html") |
| itemData[type] = await loadDocument(blob); |
| else if (type === "image/png") |
| itemData[type] = await loadImage(blob); |
| else |
| itemData[type] = await loadText(blob); |
| } |
| clipboardData.push(itemData); |
| } |
| } catch (e) { |
| exception = e; |
| } finally { |
| webkit.messageHandlers.testHandler.postMessage("readClipboard"); |
| } |
| } |
| </script> |
| <body> |
| |
| </body> |
| </html> |
