fix issues with latest getrandom 0.3 and wasm target

 - reworked the wasm use case and removed the wasm feature flag, putting
  everything behind the target specific dependencies

Signed-off-by: Andrei Gherghescu <[email protected]>

Author: andrei-ng

Diff for: .cargo/config.toml

@@ -0,0 +1,2 @@
+[target.wasm32-unknown-unknown]
+rustflags = ['--cfg', 'getrandom_backend="wasm_js"']

Diff for: .github/workflows/ci.yml

@@ -37,12 +37,12 @@ jobs:
         with:
           components: clippy
           targets: wasm32-unknown-unknown
-      # lint the main library workspace excluding the wasm feature
-      - run: cargo clippy --features plotly_ndarray,plotly_image,kaleido -- -D warnings
-      # lint the plotly library with wasm enabled
-      - run: cargo clippy --package plotly --features wasm --target wasm32-unknown-unknown -- -D warnings
+      # lint the main library workspace for non-wasm target
+      - run: cargo clippy --all-features -- -D warnings
       # lint the non-wasm examples
       - run: cd ${{ github.workspace }}/examples && cargo clippy --workspace --exclude "wasm*" -- -D warnings
+      # lint the plotly library for wasm target
+      - run: cargo clippy --package plotly --target wasm32-unknown-unknown -- -D warnings
       # lint the wasm examples
       - run: cd ${{ github.workspace }}/examples && cargo clippy --target wasm32-unknown-unknown --package "wasm*"
 
@@ -83,8 +83,6 @@ jobs:
         with:
           components: llvm-tools-preview
       - uses: taiki-e/install-action@cargo-llvm-cov
-      # we are skipping anything to do with wasm here
-      - run: cargo llvm-cov --workspace --features plotly_ndarray,plotly_image,kaleido --lcov --output-path lcov.info
       - uses: codecov/codecov-action@v3
 
   build_examples:

Diff for: examples/wasm-yew-minimal/Cargo.toml

@@ -8,7 +8,7 @@ authors = [
 edition = "2021"
 
 [dependencies]
-plotly = { path = "../../plotly", features = ["wasm"] }
+plotly = { path = "../../plotly" }
 yew = "0.21"
 yew-hooks = "0.3"
 log = "0.4"

Diff for: plotly/Cargo.toml

@@ -21,17 +21,14 @@ plotly_ndarray = ["ndarray"]
 plotly_image = ["image"]
 plotly_embed_js = []
 
-wasm = ["getrandom", "js-sys", "wasm-bindgen", "wasm-bindgen-futures"]
 with-axum = ["rinja/with-axum", "rinja_axum"]
 
 [dependencies]
 rinja = { version = "0.3", features = ["serde_json"] }
 rinja_axum = { version = "0.3", optional = true }
 dyn-clone = "1"
 erased-serde = "0.4"
-getrandom = { version = "0.2", features = ["js"], optional = true }
 image = { version = "0.25", optional = true }
-js-sys = { version = "0.3", optional = true }
 plotly_derive = { version = "0.12", path = "../plotly_derive" }
 plotly_kaleido = { version = "0.12", path = "../plotly_kaleido", optional = true }
 ndarray = { version = "0.16", optional = true }
@@ -41,8 +38,11 @@ serde_json = "1.0"
 serde_repr = "0.1"
 serde_with = ">=2, <4"
 rand = "0.9"
-wasm-bindgen = { version = "0.2", optional = true }
-wasm-bindgen-futures = { version = "0.4", optional = true }
+
+[target.'cfg(target_arch = "wasm32")'.dependencies]
+getrandom = { version = "0.3", features = ["wasm_js"] }
+wasm-bindgen-futures = { version = "0.4" }
+wasm-bindgen = { version = "0.2"}
 
 [dev-dependencies]
 csv = "1.1"

Diff for: plotly/src/bindings.rs

@@ -2,8 +2,8 @@
 //! context, where it is assumed that a remote copy of the Javascript Plotly
 //! library is available, (i.e. via a CDN).
 
-use js_sys::Object;
 use wasm_bindgen::prelude::*;
+use wasm_bindgen_futures::js_sys::Object;
 
 use crate::Plot;
 

Diff for: plotly/src/lib.rs

@@ -6,17 +6,17 @@ extern crate rand;
 extern crate rinja;
 extern crate serde;
 
-#[cfg(all(feature = "kaleido", feature = "wasm"))]
+#[cfg(all(feature = "kaleido", target_family = "wasm"))]
 compile_error!(
-    r#"The "kaleido" and "wasm" features are mutually exclusive and cannot be activated at the same time. Please disable one or the other."#
+    r#"The "kaleido" feature is not available on "wasm" targets. Please compile without this feature for the wasm target family."#
 );
 
 #[cfg(feature = "plotly_ndarray")]
 pub mod ndarray;
 #[cfg(feature = "plotly_ndarray")]
 pub use crate::ndarray::ArrayTraces;
 
-#[cfg(feature = "wasm")]
+#[cfg(target_family = "wasm")]
 pub mod bindings;
 
 pub mod common;

Diff for: plotly/src/plot.rs

@@ -534,10 +534,11 @@ impl Plot {
         serde_json::to_string(self).unwrap()
     }
 
-    #[cfg(feature = "wasm")]
+    #[cfg(target_family = "wasm")]
     /// Convert a `Plot` to a native Javasript `js_sys::Object`.
-    pub fn to_js_object(&self) -> js_sys::Object {
-        use wasm_bindgen::JsCast;
+    pub fn to_js_object(&self) -> wasm_bindgen_futures::js_sys::Object {
+        use wasm_bindgen_futures::js_sys;
+        use wasm_bindgen_futures::wasm_bindgen::JsCast;
         // The only reason this could fail is if to_json() produces structurally
         // incorrect JSON. That would be a bug, and would require fixing in the
         // to_json()/serialization methods, rather than here
@@ -734,7 +735,7 @@ mod tests {
 
     #[test]
     #[ignore] // Don't really want it to try and open a browser window every time we run a test.
-    #[cfg(not(feature = "wasm"))]
+    #[cfg(not(target_family = "wasm"))]
     fn show_image() {
         let plot = create_test_plot();
         plot.show_image(ImageFormat::PNG, 1024, 680);