Resizing echarts with wasm renderer

charming/src/renderer/wasm_renderer.rs

@@ -24,7 +24,7 @@ impl WasmRenderer {
         self
     }
 
-    pub fn render(&self, id: &str, chart: &Chart) -> Result<(), EchartsError> {
+    pub fn render(&self, id: &str, chart: &Chart) -> Result<Echarts, EchartsError> {
         let window = web_sys::window().ok_or(EchartsError::WasmError(
             "no `window` object found".to_string(),
         ))?;
@@ -47,7 +47,14 @@ impl WasmRenderer {
             .unwrap(),
         );
         echarts.set_option(to_value(chart).unwrap());
-        Ok(())
+
+        Ok(echarts)
+    }
+
+    /// Resizes a chart with options specified in [`ChartResize`]
+    pub fn resize_chart(echarts: &Echarts, chart_size: ChartResize) {
+        echarts
+            .resize(to_value(&chart_size).expect("could not convert resize options to `JsValue`"));
     }
 }
 
@@ -57,14 +64,94 @@ struct ChartSize {
     height: u32,
 }
 
+#[derive(Serialize)]
+pub struct ChartResize {
+    /// New width in px
+    width: u32,
+    /// New height in px
+    height: u32,
+    /// If true, emits events on resize
+    silent: bool,
+    /// Resize animation options
+    animation: Option<Animation>,
+}
+
+#[derive(Serialize)]
+pub struct Animation {
+    /// duration of the animation
+    pub duration: u32,
+    /// easing function used for the animation
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub easing: Option<Easing>,
+}
+
+/// available easing functions in echarts
+#[derive(Clone, Debug, Default, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub enum Easing {
+    #[default]
+    Linear,
+    QuadraticIn,
+    QuadraticOut,
+    QuadraticInOut,
+    CubicIn,
+    CubicOut,
+    CubicInOut,
+    QuarticIn,
+    QuarticOut,
+    QuarticInOut,
+    QuinticIn,
+    QuinticOut,
+    QuinticInOut,
+    SinusoidalIn,
+    SinusoidalOut,
+    SinusoidalInOut,
+    ExponentialIn,
+    ExponentialOut,
+    ExponentialInOut,
+    CircularIn,
+    CircularOut,
+    CircularInOut,
+    ElasticIn,
+    ElasticOut,
+    ElasticInOut,
+    BackIn,
+    BackOut,
+    BackInOut,
+    BounceIn,
+    BounceOut,
+    BounceInOut,
+}
+
+impl Default for Animation {
+    fn default() -> Self {
+        Self {
+            duration: 100,
+            easing: Some(Easing::default()),
+        }
+    }
+}
+
+impl Animation {
+    pub fn new(duration: u32, easing: Option<Easing>) -> Self {
+        Self {
+            duration,
+            easing: easing.or_else(|| Some(Easing::default())),
+        }
+    }
+}
+
 #[wasm_bindgen]
 extern "C" {
     #[wasm_bindgen(js_name = echarts)]
-    type Echarts;
+    pub type Echarts;
 
     #[wasm_bindgen(js_namespace = echarts, js_name = init)]
     fn init(id: &web_sys::Element, theme: &str, size: JsValue) -> Echarts;
 
     #[wasm_bindgen(method, js_name = "setOption")]
     fn set_option(this: &Echarts, option: JsValue);
+
+    #[wasm_bindgen(method, js_name = "resize")]
+    pub fn resize(this: &Echarts, opts: JsValue);
 }