From f8a584f0f4695cbda91e1d00a915aa9d41f19a90 Mon Sep 17 00:00:00 2001
From: past-due <30942300+past-due@users.noreply.github.com>
Date: Sun, 8 Oct 2023 21:56:30 -0400
Subject: [PATCH] editbox: Set the system text input rect

---
 lib/framework/wzapp.h  |  9 ++++++++-
 lib/sdl/main_sdl.cpp   | 16 +++++++++++++++-
 lib/widget/editbox.cpp |  2 +-
 3 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/lib/framework/wzapp.h b/lib/framework/wzapp.h
index b3dd1d07634..5a607d71102 100644
--- a/lib/framework/wzapp.h
+++ b/lib/framework/wzapp.h
@@ -132,7 +132,14 @@ WzString wzGetSelection();
 unsigned int wzGetCurrentKey();
 void wzDelay(unsigned int delay);	//delay in ms
 // unicode text support
-void StartTextInput(void* pTextInputRequester);
+struct WzTextInputRect
+{
+	int x;
+	int y;
+	int width;
+	int height;
+};
+void StartTextInput(void* pTextInputRequester, const WzTextInputRect& textInputRect);
 void StopTextInput(void* pTextInputResigner);
 bool isInTextInputMode();
 bool wzSeemsLikeNonTouchPlatform();
diff --git a/lib/sdl/main_sdl.cpp b/lib/sdl/main_sdl.cpp
index 53bc88a3131..902f0cfda37 100644
--- a/lib/sdl/main_sdl.cpp
+++ b/lib/sdl/main_sdl.cpp
@@ -268,10 +268,16 @@ bool get_scrap(char **dst)
 	}
 }
 
-void StartTextInput(void* pTextInputRequester)
+void StartTextInput(void* pTextInputRequester, const WzTextInputRect& textInputRect)
 {
 	if (!GetTextEventsOwner)
 	{
+		SDL_Rect rect;
+		rect.x = textInputRect.x;
+		rect.y = textInputRect.y;
+		rect.w = textInputRect.width;
+		rect.h = textInputRect.height;
+		SDL_SetTextInputRect(&rect);
 		SDL_StartTextInput();	// enable text events
 		debug(LOG_INPUT, "SDL text events started");
 	}
@@ -280,6 +286,14 @@ void StartTextInput(void* pTextInputRequester)
 		debug(LOG_INPUT, "StartTextInput called by new input requester before old requester called StopTextInput");
 	}
 	GetTextEventsOwner = pTextInputRequester;
+
+	// on some platforms, it seems like we also need to call SDL_SetTextInputRect every frame to properly set the text input rect (?)
+	SDL_Rect rect;
+	rect.x = textInputRect.x;
+	rect.y = textInputRect.y;
+	rect.w = textInputRect.width;
+	rect.h = textInputRect.height;
+	SDL_SetTextInputRect(&rect);
 }
 
 void StopTextInput(void* pTextInputResigner)
diff --git a/lib/widget/editbox.cpp b/lib/widget/editbox.cpp
index 39f8d8fd8d2..b244d00a9be 100644
--- a/lib/widget/editbox.cpp
+++ b/lib/widget/editbox.cpp
@@ -321,7 +321,7 @@ void W_EDITBOX::run(W_CONTEXT *psContext)
 		return;
 	}
 	dirty = true;
-	StartTextInput(this);
+	StartTextInput(this, {screenPosX(), screenPosY(), width(), height()});
 	/* If there is a mouse click outside of the edit box - stop editing */
 	int mx = psContext->mx;
 	int my = psContext->my;