feat(share): Add canShare method to check availability

share/README.md

@@ -31,6 +31,7 @@ Each platform uses a different set of fields, but you should supply them all.
 
 <docgen-index>
 
+* [`canShare()`](#canshare)
 * [`share(...)`](#share)
 * [Interfaces](#interfaces)
 
@@ -39,6 +40,21 @@ Each platform uses a different set of fields, but you should supply them all.
 <docgen-api>
 <!--Update the source file JSDoc comments and rerun docgen to update the docs below-->
 
+### canShare()
+
+```typescript
+canShare() => Promise<CanShareResult>
+```
+
+Check if sharing is supported.
+
+**Returns:** <code>Promise&lt;<a href="#canshareresult">CanShareResult</a>&gt;</code>
+
+**Since:** 1.1.0
+
+--------------------
+
+
 ### share(...)
 
 ```typescript
@@ -61,6 +77,13 @@ Show a Share modal for sharing content with other apps
 ### Interfaces
 
 
+#### CanShareResult
+
+| Prop        | Type                 | Description                          | Since |
+| ----------- | -------------------- | ------------------------------------ | ----- |
+| **`value`** | <code>boolean</code> | Whether sharing is supported or not. | 1.1.0 |
+
+
 #### ShareResult
 
 | Prop               | Type                | Description                                                                                                              | Since |

share/android/src/main/java/com/capacitorjs/plugins/share/SharePlugin.java

@@ -50,6 +50,13 @@ private void activityResult(PluginCall call, ActivityResult result) {
         isPresenting = false;
     }
 
+    @PluginMethod
+    public void canShare(PluginCall call) {
+        JSObject callResult = new JSObject();
+        callResult.put("value", true);
+        call.resolve(callResult);
+    }
+
     @PluginMethod
     public void share(PluginCall call) {
         if (!isPresenting) {

share/ios/Plugin/SharePlugin.m

@@ -4,5 +4,6 @@
 // Define the plugin using the CAP_PLUGIN Macro, and
 // each method the plugin supports using the CAP_PLUGIN_METHOD macro.
 CAP_PLUGIN(SharePlugin, "Share",
+           CAP_PLUGIN_METHOD(canShare, CAPPluginReturnPromise);
            CAP_PLUGIN_METHOD(share, CAPPluginReturnPromise);
 )

share/ios/Plugin/SharePlugin.swift

@@ -4,6 +4,12 @@ import Capacitor
 @objc(SharePlugin)
 public class SharePlugin: CAPPlugin {
 
+    @objc func canShare(_ call: CAPPluginCall) {
+        call.resolve([
+            "value": true
+        ])
+    }
+
     @objc func share(_ call: CAPPluginCall) {
         var items = [Any]()
 

share/src/definitions.ts

@@ -42,7 +42,23 @@ export interface ShareResult {
   activityType?: string;
 }
 
+export interface CanShareResult {
+  /**
+   * Whether sharing is supported or not.
+   *
+   * @since 1.1.0
+   */
+  value: boolean;
+}
+
 export interface SharePlugin {
+  /**
+   * Check if sharing is supported.
+   *
+   * @since 1.1.0
+   */
+  canShare(): Promise<CanShareResult>;
+
   /**
    * Show a Share modal for sharing content with other apps
    *

share/src/web.ts

@@ -1,8 +1,20 @@
 import { WebPlugin } from '@capacitor/core';
 
-import type { ShareOptions, SharePlugin, ShareResult } from './definitions';
+import type {
+  CanShareResult,
+  ShareOptions,
+  SharePlugin,
+  ShareResult,
+} from './definitions';
 
 export class ShareWeb extends WebPlugin implements SharePlugin {
+  async canShare(): Promise<CanShareResult> {
+    if (typeof navigator === 'undefined' || !navigator.share) {
+      return { value: false };
+    } else {
+      return { value: true };
+    }
+  }
   async share(options: ShareOptions): Promise<ShareResult> {
     if (typeof navigator === 'undefined' || !navigator.share) {
       throw this.unavailable('Share API not available in this browser');