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feat(focus): Add functionality to imperatively focus webview (#567)

*  - add focus functionality for devices without touch screen
 (faced problem while developing for android TV, cause there only remote controller for device)

* Reimplement as a ref method.

*  - remove redundant requestFocus
DemMarcupan 5 years ago
parent
commit
6f053bad7b

+ 7
- 1
android/src/main/java/com/reactnativecommunity/webview/RNCWebViewManager.java View File

@@ -110,6 +110,7 @@ public class RNCWebViewManager extends SimpleViewManager<WebView> {
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   public static final int COMMAND_POST_MESSAGE = 5;
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   public static final int COMMAND_INJECT_JAVASCRIPT = 6;
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   public static final int COMMAND_LOAD_URL = 7;
113
+  public static final int COMMAND_FOCUS = 8;
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   protected static final String REACT_CLASS = "RNCWebView";
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   protected static final String HTML_ENCODING = "UTF-8";
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   protected static final String HTML_MIME_TYPE = "text/html";
@@ -511,7 +512,7 @@ public class RNCWebViewManager extends SimpleViewManager<WebView> {
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   @Override
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   public @Nullable
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   Map<String, Integer> getCommandsMap() {
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-    return MapBuilder.of(
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+    Map map = MapBuilder.of(
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       "goBack", COMMAND_GO_BACK,
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       "goForward", COMMAND_GO_FORWARD,
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       "reload", COMMAND_RELOAD,
@@ -520,6 +521,8 @@ public class RNCWebViewManager extends SimpleViewManager<WebView> {
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       "injectJavaScript", COMMAND_INJECT_JAVASCRIPT,
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       "loadUrl", COMMAND_LOAD_URL
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     );
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+    map.put("requestFocus", COMMAND_FOCUS);
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+    return map;
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   }
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   @Override
@@ -567,6 +570,9 @@ public class RNCWebViewManager extends SimpleViewManager<WebView> {
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         }
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         root.loadUrl(args.getString(0));
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         break;
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+      case COMMAND_FOCUS:
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+        root.requestFocus();
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+        break;
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     }
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   }
572 578
 

+ 5
- 0
index.d.ts View File

@@ -34,6 +34,11 @@ declare class WebView extends Component<WebViewProps> {
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      * Executes the JavaScript string.
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      */
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     injectJavaScript: (script: string) => void;
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+
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+    /**
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+     * Focuses on WebView redered page.
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+     */
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+    requestFocus: () => void;
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 }
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 export {WebView};

+ 8
- 0
src/WebView.android.tsx View File

@@ -105,6 +105,14 @@ class WebView extends React.Component<AndroidWebViewProps, State> {
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     );
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   };
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+  requestFocus = () => {
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+    UIManager.dispatchViewManagerCommand(
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+        this.getWebViewHandle(),
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+        this.getCommands().requestFocus,
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+        null,
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+    );
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+  };
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+
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   postMessage = (data: string) => {
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     UIManager.dispatchViewManagerCommand(
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       this.getWebViewHandle(),

+ 11
- 0
src/WebView.ios.tsx View File

@@ -164,6 +164,17 @@ class WebView extends React.Component<IOSWebViewProps, State> {
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     );
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   };
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+  /**
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+   * Request focus on WebView rendered page.
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+   */
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+  requestFocus = () => {
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+    UIManager.dispatchViewManagerCommand(
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+        this.getWebViewHandle(),
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+        this.getCommands().requestFocus,
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+        null,
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+    );
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+  };
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+
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   /**
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    * Posts a message to the web view, which will emit a `message` event.
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    * Accepts one argument, `data`, which must be a string.

+ 1
- 0
src/WebViewTypes.ts View File

@@ -18,6 +18,7 @@ export interface WebViewCommands {
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   postMessage: Function;
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   injectJavaScript: Function;
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   loadUrl: Function;
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+  requestFocus: Function;
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 }
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 export interface CustomUIManager extends UIManagerStatic {