[rust]: enable create doc view on offline mode

backend/src/service/user/user_default.rs

@@ -7,11 +7,9 @@ use crate::{
     sqlx_ext::{map_sqlx_error, DBTransaction},
 };
 
+use flowy_document::services::doc::doc_initial_string;
 use flowy_net::errors::ServerError;
-use flowy_workspace::{
-    entities::view::DOC_DEFAULT_DATA,
-    protobuf::{App, CreateViewParams, View, ViewType, Workspace},
-};
+use flowy_workspace::protobuf::{App, CreateViewParams, View, ViewType, Workspace};
 
 pub async fn create_default_workspace(
     transaction: &mut DBTransaction<'_>,
@@ -63,7 +61,7 @@ async fn create_default_view(transaction: &mut DBTransaction<'_>, app: &App) ->
         desc: "View created by AppFlowy".to_string(),
         thumbnail: "123.png".to_string(),
         view_type: ViewType::Doc,
-        data: DOC_DEFAULT_DATA.to_string(),
+        data: doc_initial_string(),
         unknown_fields: Default::default(),
         cached_size: Default::default(),
     };

rust-lib/flowy-document/src/services/doc/document/document.rs

@@ -15,9 +15,19 @@ impl CustomDocument for PlainDoc {
     fn init_delta() -> Delta { Delta::new() }
 }
 
+#[allow(dead_code)]
+#[inline]
+pub fn doc_initial_delta() -> Delta { DeltaBuilder::new().insert("\n").build() }
+#[allow(dead_code)]
+#[inline]
+pub fn doc_initial_string() -> String { doc_initial_delta().to_json() }
+#[allow(dead_code)]
+#[inline]
+pub fn doc_initial_bytes() -> Vec<u8> { doc_initial_string().into_bytes() }
+
 pub struct FlowyDoc();
 impl CustomDocument for FlowyDoc {
-    fn init_delta() -> Delta { DeltaBuilder::new().insert("\n").build() }
+    fn init_delta() -> Delta { doc_initial_delta() }
 }
 
 pub struct Document {

rust-lib/flowy-document/src/services/server/server_api_mock.rs

@@ -1,9 +1,10 @@
 use crate::{
     entities::doc::{CreateDocParams, Doc, DocIdentifier, UpdateDocParams},
     errors::DocError,
-    services::server::DocumentServerAPI,
+    services::{doc::doc_initial_string, server::DocumentServerAPI},
 };
 use flowy_infra::future::ResultFuture;
+
 pub struct DocServerMock {}
 
 impl DocumentServerAPI for DocServerMock {
@@ -11,8 +12,14 @@ impl DocumentServerAPI for DocServerMock {
         ResultFuture::new(async { Ok(()) })
     }
 
-    fn read_doc(&self, _token: &str, _params: DocIdentifier) -> ResultFuture<Option<Doc>, DocError> {
-        ResultFuture::new(async { Ok(None) })
+    fn read_doc(&self, _token: &str, params: DocIdentifier) -> ResultFuture<Option<Doc>, DocError> {
+        let doc = Doc {
+            id: params.doc_id,
+            data: doc_initial_string(),
+            rev_id: 0,
+            base_rev_id: 0,
+        };
+        ResultFuture::new(async { Ok(Some(doc)) })
     }
 
     fn update_doc(&self, _token: &str, _params: UpdateDocParams) -> ResultFuture<(), DocError> {

rust-lib/flowy-workspace/src/entities/view/view_create.rs

@@ -8,6 +8,7 @@ use crate::{
     impl_def_and_def_mut,
 };
 use flowy_derive::{ProtoBuf, ProtoBuf_Enum};
+use flowy_document::services::doc::doc_initial_string;
 use std::convert::TryInto;
 
 #[derive(PartialEq, Debug, ProtoBuf_Enum, Clone)]
@@ -72,10 +73,6 @@ pub struct CreateViewParams {
     pub data: String,
 }
 
-pub const DOC_DEFAULT_DATA: &str = "[{\"insert\":\"\\n\"}]";
-#[allow(dead_code)]
-pub fn default_delta() -> Vec<u8> { DOC_DEFAULT_DATA.as_bytes().to_vec() }
-
 impl CreateViewParams {
     pub fn new(belong_to_id: String, name: String, desc: String, view_type: ViewType, thumbnail: String) -> Self {
         Self {
@@ -84,7 +81,7 @@ impl CreateViewParams {
             desc,
             thumbnail,
             view_type,
-            data: DOC_DEFAULT_DATA.to_string(),
+            data: doc_initial_string(),
         }
     }
 }