Show a crash dialog when the editor panics (#362)

* Show a crash dialog when the editor panics

Closes #357

* Suppress console usage lints

* Proxy cleanup and comments

editor/src/document/document_message_handler.rs

@@ -202,7 +202,13 @@ impl MessageHandler<DocumentsMessage, &InputPreprocessor> for DocumentsMessageHa
 					Ok(document) => {
 						self.load_document(document, responses);
 					}
-					Err(e) => responses.push_back(FrontendMessage::DisplayError { description: e.to_string() }.into()),
+					Err(e) => responses.push_back(
+						FrontendMessage::DisplayError {
+							title: "Failed to open document".to_string(),
+							description: e.to_string(),
+						}
+						.into(),
+					),
 				}
 			}
 			GetOpenDocumentsList => {

editor/src/frontend/frontend_message_handler.rs

@@ -12,7 +12,8 @@ pub enum FrontendMessage {
 	SetActiveTool { tool_name: String, tool_options: Option<ToolOptions> },
 	SetActiveDocument { document_index: usize },
 	UpdateOpenDocumentsList { open_documents: Vec<String> },
-	DisplayError { description: String },
+	DisplayError { title: String, description: String },
+	DisplayPanic { title: String, description: String },
 	DisplayConfirmationToCloseDocument { document_index: usize },
 	DisplayConfirmationToCloseAllDocuments,
 	UpdateCanvas { document: String },

editor/src/lib.rs

@@ -41,8 +41,10 @@ impl Editor {
 
 	pub fn handle_message<T: Into<Message>>(&mut self, message: T) -> Vec<FrontendMessage> {
 		self.dispatcher.handle_message(message);
+
 		let mut responses = Vec::new();
 		std::mem::swap(&mut responses, &mut self.dispatcher.responses);
+
 		responses
 	}
 }