Send Stickers: Plug the sticker picker widget with the room datasource to send a sticker

#1860

Riot/ViewController/Widgets/WidgetPickerViewController.m

@@ -75,8 +75,12 @@
                            // Display the widget
                            [widget widgetUrl:^(NSString * _Nonnull widgetUrl) {
 
-                                WidgetViewController *widgetVC = [[WidgetViewController alloc] initWithUrl:widgetUrl forWidget:widget];
-                                [mxkViewController.navigationController pushViewController:widgetVC animated:YES];
+                               WidgetViewController *widgetVC = [[WidgetViewController alloc] initWithUrl:widgetUrl forWidget:widget];
+
+                               MXKRoomDataSourceManager *roomDataSourceManager = [MXKRoomDataSourceManager sharedManagerForMatrixSession:mxSession];
+                               widgetVC.roomDataSource = [roomDataSourceManager roomDataSourceForRoom:roomId create:NO];
+
+                               [mxkViewController.navigationController pushViewController:widgetVC animated:YES];
 
                             } failure:^(NSError * _Nonnull error) {
 

Riot/ViewController/Widgets/WidgetViewController.h

@@ -17,6 +17,7 @@
 #import "WebViewViewController.h"
 
 #import "WidgetManager.h"
+#import "MatrixKit/MatrixKit.h"
 
 /**
  `WidgetViewController` displays widget within a webview.
@@ -26,6 +27,12 @@
  */
 @interface WidgetViewController : WebViewViewController
 
+/**
+ The room data source.
+ Required if the widget needs to post messages.
+ */
+@property (nonatomic) MXKRoomDataSource *roomDataSource;
+
 /**
  Init 'WidgetViewController' instance with a widget.
 

Riot/ViewController/Widgets/WidgetViewController.m

@@ -18,7 +18,7 @@
 
 #import "AppDelegate.h"
 
-NSString *const kJavascriptSendResponseToModular = @"riotIOS.sendResponse('%@', %@);";
+NSString *const kJavascriptSendResponseToPostMessageAPI = @"riotIOS.sendResponse('%@', %@);";
 
 @interface WidgetViewController ()
 {
@@ -186,13 +186,42 @@ NSString *const kJavascriptSendResponseToModular = @"riotIOS.sendResponse('%@',
 
 - (void)onPostMessageRequest:(NSString*)requestId data:(NSDictionary*)requestData
 {
-    // TODO
+    NSString *action;
+    MXJSONModelSetString(action, requestData[@"action"]);
+
+    if ([@"m.sticker" isEqualToString:action])
+    {
+        // Extract the sticker event content and send it as is
+
+        // The key should be "data" according to https://docs.google.com/document/d/1uPF7XWY_dXTKVKV7jZQ2KmsI19wn9-kFRgQ1tFQP7wQ/edit?usp=sharing
+        // TODO: Fix it once spec is finalised
+        NSDictionary *widgetData;
+        NSDictionary *stickerContent;
+        MXJSONModelSetDictionary(widgetData, requestData[@"widgetData"]);
+        if (widgetData)
+        {
+            MXJSONModelSetDictionary(stickerContent, widgetData[@"content"]);
+        }
+
+        if (stickerContent)
+        {
+            // Let the data source manage the sending cycle
+            [_roomDataSource sendEventOfType:kMXEventTypeStringSticker content:stickerContent success:nil failure:nil];
+        }
+        else
+        {
+            NSLog(@"[WidgetVC] onPostMessageRequest: ERROR: Invalid content for m.sticker: %@", requestData);
+        }
+
+        // Consider we are done with the sticker picker widget
+        [self withdrawViewControllerAnimated:YES completion:nil];
+    }
 }
 
 - (void)sendBoolResponse:(BOOL)response toRequest:(NSString*)requestId
 {
     // Convert BOOL to "true" or "false"
-    NSString *js = [NSString stringWithFormat:kJavascriptSendResponseToModular,
+    NSString *js = [NSString stringWithFormat:kJavascriptSendResponseToPostMessageAPI,
                     requestId,
                     response ? @"true" : @"false"];
 
@@ -201,7 +230,7 @@ NSString *const kJavascriptSendResponseToModular = @"riotIOS.sendResponse('%@',
 
 - (void)sendIntegerResponse:(NSUInteger)response toRequest:(NSString*)requestId
 {
-    NSString *js = [NSString stringWithFormat:kJavascriptSendResponseToModular,
+    NSString *js = [NSString stringWithFormat:kJavascriptSendResponseToPostMessageAPI,
                     requestId,
                     @(response)];
 
@@ -227,7 +256,7 @@ NSString *const kJavascriptSendResponseToModular = @"riotIOS.sendResponse('%@',
         jsString = @"null";
     }
 
-    NSString *js = [NSString stringWithFormat:kJavascriptSendResponseToModular,
+    NSString *js = [NSString stringWithFormat:kJavascriptSendResponseToPostMessageAPI,
                     requestId,
                     jsString];