@@ -192,6 +192,95 @@ fn set_clipboard_text(s: &str) {
192192 }
193193}
194194
195+ /// Set the clipboard image.
196+ fn set_clipboard_image ( image : & egui:: ColorImage ) {
197+ if let Some ( window) = web_sys:: window ( ) {
198+ if !window. is_secure_context ( ) {
199+ log:: error!(
200+ "Clipboard is not available because we are not in a secure context. \
201+
202+ ) ;
203+ return ;
204+ }
205+
206+ let png_bytes = to_image ( image) . and_then ( |image| to_png_bytes ( & image) ) ;
207+ let png_bytes = match png_bytes {
208+ Ok ( png_bytes) => png_bytes,
209+ Err ( err) => {
210+ log:: error!( "Failed to encode image to png: {err}" ) ;
211+ return ;
212+ }
213+ } ;
214+
215+ let mime = "image/png" ;
216+
217+ let item = match create_clipboard_item ( mime, & png_bytes) {
218+ Ok ( item) => item,
219+ Err ( err) => {
220+ log:: error!( "Failed to copy image: {}" , string_from_js_value( & err) ) ;
221+ return ;
222+ }
223+ } ;
224+ let items = js_sys:: Array :: of1 ( & item) ;
225+ let promise = window. navigator ( ) . clipboard ( ) . write ( & items) ;
226+ let future = wasm_bindgen_futures:: JsFuture :: from ( promise) ;
227+ let future = async move {
228+ if let Err ( err) = future. await {
229+ log:: error!(
230+ "Copy/cut image action failed: {}" ,
231+ string_from_js_value( & err)
232+ ) ;
233+ }
234+ } ;
235+ wasm_bindgen_futures:: spawn_local ( future) ;
236+ }
237+ }
238+
239+ fn to_image ( image : & egui:: ColorImage ) -> Result < image:: RgbaImage , String > {
240+ profiling:: function_scope!( ) ;
241+ image:: RgbaImage :: from_raw (
242+ image. width ( ) as _ ,
243+ image. height ( ) as _ ,
244+ bytemuck:: cast_slice ( & image. pixels ) . to_vec ( ) ,
245+ )
246+ . ok_or_else ( || "Invalid IconData" . to_owned ( ) )
247+ }
248+
249+ fn to_png_bytes ( image : & image:: RgbaImage ) -> Result < Vec < u8 > , String > {
250+ profiling:: function_scope!( ) ;
251+ let mut png_bytes: Vec < u8 > = Vec :: new ( ) ;
252+ image
253+ . write_to (
254+ & mut std:: io:: Cursor :: new ( & mut png_bytes) ,
255+ image:: ImageFormat :: Png ,
256+ )
257+ . map_err ( |err| err. to_string ( ) ) ?;
258+ Ok ( png_bytes)
259+ }
260+
261+ fn create_clipboard_item ( mime : & str , bytes : & [ u8 ] ) -> Result < web_sys:: ClipboardItem , JsValue > {
262+ let array = js_sys:: Uint8Array :: from ( bytes) ;
263+ let blob_parts = js_sys:: Array :: new ( ) ;
264+ blob_parts. push ( & array) ;
265+
266+ let options = web_sys:: BlobPropertyBag :: new ( ) ;
267+ options. set_type ( mime) ;
268+
269+ let blob = web_sys:: Blob :: new_with_u8_array_sequence_and_options ( & blob_parts, & options) ?;
270+
271+ let items = js_sys:: Object :: new ( ) ;
272+
273+ // SAFETY: I hope so
274+ #[ allow( unsafe_code, unused_unsafe) ] // Weird false positive
275+ unsafe {
276+ js_sys:: Reflect :: set ( & items, & JsValue :: from_str ( mime) , & blob) ?
277+ } ;
278+
279+ let clipboard_item = web_sys:: ClipboardItem :: new_with_record_from_str_to_blob_promise ( & items) ?;
280+
281+ Ok ( clipboard_item)
282+ }
283+
195284fn cursor_web_name ( cursor : egui:: CursorIcon ) -> & ' static str {
196285 match cursor {
197286 egui:: CursorIcon :: Alias => "alias" ,
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