feat: add WebView::load_html for loading HTML after intialization (#…

…1368)

.changes/load-html.md

@@ -0,0 +1,5 @@
+---
+"wry": minor
+---
+
+Add `Webview::load_html`.

src/android/main_pipe.rs

@@ -300,6 +300,12 @@ impl<'a> MainPipe<'a> {
               .call_method(webview, "clearAllBrowsingData", "()V", &[])?;
           }
         }
+        WebViewMessage::LoadHtml(html) => {
+          if let Some(webview) = &self.webview {
+            let html = self.env.new_string(html)?;
+            load_html(&mut self.env, webview.as_obj(), &html)?;
+          }
+        }
       }
     }
     Ok(())
@@ -369,6 +375,7 @@ pub(crate) enum WebViewMessage {
   GetUrl(Sender<String>),
   Jni(Box<dyn FnOnce(&mut JNIEnv, &JObject, &JObject) + Send>),
   LoadUrl(String, Option<http::HeaderMap>),
+  LoadHtml(String),
   ClearAllBrowsingData,
 }
 

src/android/mod.rs

@@ -351,6 +351,11 @@ impl InnerWebView {
     Ok(())
   }
 
+  pub fn load_html(&self, html: &str) -> Result<()> {
+    MainPipe::send(WebViewMessage::LoadHtml(html.to_string()));
+    Ok(())
+  }
+
   pub fn clear_all_browsing_data(&self) -> Result<()> {
     MainPipe::send(WebViewMessage::ClearAllBrowsingData);
     Ok(())

src/lib.rs

@@ -1477,6 +1477,11 @@ impl WebView {
     self.webview.load_url_with_headers(url, headers)
   }
 
+  /// Load html content into the webview
+  pub fn load_html(&self, html: &str) -> Result<()> {
+    self.webview.load_html(html)
+  }
+
   /// Clear all browsing data
   pub fn clear_all_browsing_data(&self) -> Result<()> {
     self.webview.clear_all_browsing_data()

src/webkitgtk/mod.rs

@@ -673,6 +673,11 @@ impl InnerWebView {
     Ok(())
   }
 
+  pub fn load_html(&self, html: &str) -> Result<()> {
+    self.webview.load_html(html, None);
+    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

@@ -1205,6 +1205,11 @@ impl InnerWebView {
     load_url_with_headers(&self.webview, &self.env, url, headers)
   }
 
+  pub fn load_html(&self, html: &str) -> Result<()> {
+    let html = HSTRING::from(html);
+    unsafe { self.webview.NavigateToString(&html) }.map_err(Into::into)
+  }
+
   pub fn bounds(&self) -> Result<Rect> {
     let mut bounds = Rect::default();
     let mut rect = RECT::default();

src/wkwebview/mod.rs

@@ -1130,6 +1130,11 @@ r#"Object.defineProperty(window, 'ipc', {
     self.navigate_to_url(url, Some(headers))
   }
 
+  pub fn load_html(&self, html: &str) -> crate::Result<()> {
+    self.navigate_to_string(html);
+    Ok(())
+  }
+
   pub fn clear_all_browsing_data(&self) -> Result<()> {
     unsafe {
       let config: id = msg_send![self.webview, configuration];