Added a closeScreenSnippet command

src/app/main-api-handler.ts

@@ -117,6 +117,9 @@ ipcMain.on(apiName.symphonyApi, (event: Electron.IpcMainEvent, arg: IApiArgs) =>
         case apiCmds.openScreenSnippet:
             screenSnippet.capture(event.sender);
             break;
+        case apiCmds.closeScreenSnippet:
+            screenSnippet.cancelCapture();
+            break;
         case apiCmds.closeWindow:
             windowHandler.closeWindow(arg.windowType, arg.winKey);
             break;

src/app/screen-snippet-handler.ts

@@ -67,6 +67,22 @@ class ScreenSnippet {
         }
     }
 
+    /**
+     * Cancels a screen capture and closes the snippet window
+     *
+     * @param webContents {Electron.webContents}
+     */
+    public async cancelCapture() {
+        logger.info(`screen-snippet-handler: Cancel screen capture!`);
+        this.focusedWindow = BrowserWindow.getFocusedWindow();
+
+        try {
+            await this.execCmd(this.captureUtil, []);
+        } catch (error) {
+            logger.error(`screen-snippet-handler: screen capture cancedl failed with error: ${error}!`);
+        }
+    }
+
     /**
      * Kills the child process when the application is reloaded
      */

src/common/api-interface.ts

@@ -19,6 +19,7 @@ export enum apiCmds {
     setIsInMeeting = 'set-is-in-meeting',
     setLocale = 'set-locale',
     openScreenSnippet = 'open-screen-snippet',
+    closeScreenSnippet = 'close-screen-snippet',
     keyPress = 'key-press',
     closeWindow = 'close-window',
     openScreenSharingIndicator = 'open-screen-sharing-indicator',

src/demo/index.html

@@ -124,6 +124,7 @@
         <button id='snippet'>get snippet</button>
         <p>snippet output:</p>
         <image id='snippet-img'/>
+        <button id='cancel-snippet'>cancel snippet</button>
 
         <hr>
         <p>Window activate:</p>
@@ -187,6 +188,7 @@
                 setIsInMeeting: 'set-is-in-meeting',
                 setLocale: 'set-locale',
                 openScreenSnippet: 'open-screen-snippet',
+                closeScreenSnippet: 'close-screen-snippet',
                 keyPress: 'key-press',
                 closeWindow: 'close-window',
                 openScreenSharingIndicator: 'open-screen-sharing-indicator',
@@ -310,6 +312,16 @@
             }
         });
 
+        const cancelSnippetButton = document.getElementById('cancel-snippet');
+        cancelSnippetButton.addEventListener('click', () => {
+            if (window.ssf) {
+                const screenSnippet = new window.ssf.ScreenSnippet();
+                screenSnippet.cancelCapture();
+            } else {
+                postMessage(apiCmds.closeScreenSnippet)
+            }
+        });
+
         let win;
 
         const openWinButton = document.getElementById('open-win');

src/renderer/app-bridge.ts

@@ -114,6 +114,9 @@ export class AppBridge {
             case apiCmds.openScreenSnippet:
                 ssf.openScreenSnippet(this.callbackHandlers.onScreenSnippetCallback);
                 break;
+            case apiCmds.closeScreenSnippet:
+                ssf.closeScreenSnippet();
+                break;
             case apiCmds.registerBoundsChange:
                 ssf.registerBoundsChange(this.callbackHandlers.onRegisterBoundsChangeCallback);
                 break;

src/renderer/screen-snippet-bc-handler.ts

@@ -24,4 +24,14 @@ export class ScreenSnippetBcHandler {
             });
         });
     }
+    /**
+     * cancel capture method to support backward compatibility
+     *
+     * @deprecated user closeScreenSnippet instead
+     */
+    public cancel() {
+        ipcRenderer.send(apiName.symphonyApi, {
+            cmd: apiCmds.closeScreenSnippet,
+        });
+    }
 }

src/renderer/ssf-api.ts

@@ -302,6 +302,17 @@ export class SSFApi {
         }
     }
 
+    /**
+     * Cancel a screen capture in progress
+     *
+     * @param screenSnippetCallback {function}
+     */
+    public closeScreenSnippet(): void {
+        local.ipcRenderer.send(apiName.symphonyApi, {
+            cmd: apiCmds.closeScreenSnippet,
+        });
+    }
+
     /**
      * Sets the count on the tray icon to the given number.
      *