From 11ec500dff8ad0e5584e010533d4850a033e7c90 Mon Sep 17 00:00:00 2001
From: Andrey Filipenkov <decapitator@ukr.net>
Date: Sun, 22 Jan 2023 15:34:16 +0300
Subject: [PATCH] [iOS] use pinch gesture as Spacebar hotkey instead of Tab

---
 client/ios/GameChatKeyboardHandler.h |  4 +++-
 client/ios/GameChatKeyboardHandler.m | 36 ++++++++++++++--------------
 client/ios/startSDL.mm               |  2 +-
 3 files changed, 22 insertions(+), 20 deletions(-)

diff --git a/client/ios/GameChatKeyboardHandler.h b/client/ios/GameChatKeyboardHandler.h
index 01d8fd694..6d8f23c87 100644
--- a/client/ios/GameChatKeyboardHandler.h
+++ b/client/ios/GameChatKeyboardHandler.h
@@ -10,11 +10,13 @@
 
 #import <UIKit/UIKit.h>
 
+#include <SDL_events.h>
+
 NS_ASSUME_NONNULL_BEGIN
 
 @interface GameChatKeyboardHandler : NSObject
 
-- (void)triggerInput;
++ (void)sendKeyEventWithKeyCode:(SDL_KeyCode)keyCode;
 
 @end
 
diff --git a/client/ios/GameChatKeyboardHandler.m b/client/ios/GameChatKeyboardHandler.m
index 276ece8bb..4b1143caf 100644
--- a/client/ios/GameChatKeyboardHandler.m
+++ b/client/ios/GameChatKeyboardHandler.m
@@ -10,20 +10,8 @@
 
 #import "GameChatKeyboardHandler.h"
 
-#include <SDL_events.h>
-
 static int watchReturnKey(void * userdata, SDL_Event * event);
 
-static void sendKeyEvent(SDL_KeyCode keyCode)
-{
-	SDL_Event keyEvent;
-	keyEvent.key = (SDL_KeyboardEvent){
-		.type = SDL_KEYDOWN,
-		.keysym.sym = keyCode,
-	};
-	SDL_PushEvent(&keyEvent);
-}
-
 
 @interface GameChatKeyboardHandler ()
 @property (nonatomic) BOOL wasChatMessageSent;
@@ -31,28 +19,40 @@ static void sendKeyEvent(SDL_KeyCode keyCode)
 
 @implementation GameChatKeyboardHandler
 
-- (void)triggerInput {
++ (void)sendKeyEventWithKeyCode:(SDL_KeyCode)keyCode
+{
+	SDL_Event keyEvent;
+	keyEvent.key = (SDL_KeyboardEvent){
+		.type = SDL_KEYDOWN,
+		.state = SDL_PRESSED,
+		.keysym.sym = keyCode,
+	};
+	SDL_PushEvent(&keyEvent);
+}
+
+- (instancetype)init {
+	self = [super init];
+
 	__auto_type notificationCenter = NSNotificationCenter.defaultCenter;
 	[notificationCenter addObserver:self selector:@selector(textDidBeginEditing:) name:UITextFieldTextDidBeginEditingNotification object:nil];
 	[notificationCenter addObserver:self selector:@selector(textDidEndEditing:) name:UITextFieldTextDidEndEditingNotification object:nil];
 
-	self.wasChatMessageSent = NO;
-	sendKeyEvent(SDLK_TAB);
+	return self;
 }
 
 #pragma mark - Notifications
 
 - (void)textDidBeginEditing:(NSNotification *)n {
+	self.wasChatMessageSent = NO;
+
 	// watch for pressing Return to ignore sending Escape key after keyboard is closed
 	SDL_AddEventWatch(watchReturnKey, (__bridge void *)self);
 }
 
 - (void)textDidEndEditing:(NSNotification *)n {
-	[NSNotificationCenter.defaultCenter removeObserver:self];
-
 	// discard chat message
 	if(!self.wasChatMessageSent)
-		sendKeyEvent(SDLK_ESCAPE);
+		[[self class] sendKeyEventWithKeyCode:SDLK_ESCAPE];
 }
 
 @end
diff --git a/client/ios/startSDL.mm b/client/ios/startSDL.mm
index c9ada242b..ce2dbd0a6 100644
--- a/client/ios/startSDL.mm
+++ b/client/ios/startSDL.mm
@@ -95,7 +95,7 @@
 - (void)handlePinch:(UIGestureRecognizer *)gesture {
     if(gesture.state != UIGestureRecognizerStateBegan || CSH->state != EClientState::GAMEPLAY)
         return;
-	[self.gameChatHandler triggerInput];
+	[GameChatKeyboardHandler sendKeyEventWithKeyCode:SDLK_SPACE];
 }
 
 #pragma mark - UIGestureRecognizerDelegate