feat: add Webview.reload (tauri-apps#1500)

* feat: add `Webview.reload` - first step MacOS

* add linux and windows support

* android support

* change from minor to patch

---------

Co-authored-by: Lucas Nogueira <[email protected]>

Author: Simon-Laux

.changes/reload.md

@@ -0,0 +1,5 @@
+---
+'wry': 'patch'
+---
+
+feat: add `Webview.reload`

src/android/kotlin/RustWebView.kt

@@ -16,7 +16,7 @@ import kotlin.collections.Map
 @SuppressLint("RestrictedApi")
 class RustWebView(context: Context, val initScripts: Array<String>, val id: String): WebView(context) {
     val isDocumentStartScriptEnabled: Boolean
-  
+
     init {
         settings.javaScriptEnabled = true
         settings.domStorageEnabled = true

src/android/kotlin/proguard-wry.pro

@@ -30,4 +30,4 @@
 
 -keep class {{package-unescaped}}.RustWebChromeClient,{{package-unescaped}}.RustWebViewClient {
   public <init>(...);
-}
+}

src/android/main_pipe.rs

@@ -341,6 +341,11 @@ impl<'a> MainPipe<'a> {
             load_html(&mut self.env, webview.as_obj(), &html)?;
           }
         }
+        WebViewMessage::Reload => {
+          if let Some(webview) = &self.webview {
+            reload(&mut self.env, webview.as_obj())?;
+          }
+        }
         WebViewMessage::GetCookies(tx, url) => {
           if let Some(webview) = &self.webview {
             let url = self.env.new_string(url)?;
@@ -425,6 +430,11 @@ fn load_html<'a>(env: &mut JNIEnv<'a>, webview: &JObject<'a>, html: &JString<'a>
   Ok(())
 }
 
+fn reload<'a>(env: &mut JNIEnv<'a>, webview: &JObject<'a>) -> JniResult<()> {
+  env.call_method(webview, "reload", "()V", &[])?;
+  Ok(())
+}
+
 fn set_background_color<'a>(
   env: &mut JNIEnv<'a>,
   webview: &JObject<'a>,
@@ -445,6 +455,7 @@ pub(crate) enum WebViewMessage {
   Jni(Box<dyn FnOnce(&mut JNIEnv, &JObject, &JObject) + Send>),
   LoadUrl(String, Option<http::HeaderMap>),
   LoadHtml(String),
+  Reload,
   ClearAllBrowsingData,
   OnDestroy,
 }

src/android/mod.rs

@@ -400,6 +400,11 @@ impl InnerWebView {
     Ok(())
   }
 
+  pub fn reload(&self) -> Result<()> {
+    MainPipe::send(WebViewMessage::Reload);
+    Ok(())
+  }
+
   pub fn clear_all_browsing_data(&self) -> Result<()> {
     MainPipe::send(WebViewMessage::ClearAllBrowsingData);
     Ok(())

src/lib.rs

@@ -1883,6 +1883,11 @@ impl WebView {
     self.webview.load_url(url)
   }
 
+  /// Reloads the current page.
+  pub fn reload(&self) -> crate::Result<()> {
+    self.webview.reload()
+  }
+
   /// Navigate to the specified url using the specified headers
   pub fn load_url_with_headers(&self, url: &str, headers: http::HeaderMap) -> Result<()> {
     self.webview.load_url_with_headers(url, headers)

src/webkitgtk/mod.rs

@@ -695,6 +695,11 @@ impl InnerWebView {
     Ok(())
   }
 
+  pub fn reload(&self) -> Result<()> {
+    self.webview.reload();
+    Ok(())
+  }
+
   pub fn clear_all_browsing_data(&self) -> Result<()> {
     if let Some(context) = self.webview.context() {
       if let Some(data_manger) = context.website_data_manager() {

src/webview2/mod.rs

@@ -1300,6 +1300,10 @@ impl InnerWebView {
     unsafe { self.webview.NavigateToString(&html) }.map_err(Into::into)
   }
 
+  pub fn reload(&self) -> Result<()> {
+    unsafe { self.webview.Reload() }.map_err(Into::into)
+  }
+
   pub fn bounds(&self) -> Result<Rect> {
     let mut bounds = Rect::default();
     let mut rect = RECT::default();

src/wkwebview/mod.rs

@@ -683,6 +683,13 @@ r#"Object.defineProperty(window, 'ipc', {
     Ok(())
   }
 
+  /// Reloads the current page.
+  pub fn reload(&self) -> crate::Result<()> {
+    // Safety: objc runtime calls are unsafe
+    unsafe { self.webview.reload() };
+    Ok(())
+  }
+
   pub fn clear_all_browsing_data(&self) -> Result<()> {
     unsafe {
       let config = self.webview.configuration();