From ed47d1adda063a02b9886f8b28f3a81426aae2cf Mon Sep 17 00:00:00 2001
From: UnknownShadow200 <unknownshadow200@gmail.com>
Date: Sat, 5 Mar 2022 10:54:24 +1100
Subject: [PATCH] mc:// urls can be pasted into direct connect screen input
 fields now

The username/address/mppass input fields will all be automatically set to the corresponding extracted values from the mc:// url
---
 src/Graphics_D3D11.c |  2 +-
 src/LScreens.c       | 17 +++++++++++++++++
 src/LWidgets.c       |  6 ++++++
 src/LWidgets.h       | 12 +++++++-----
 4 files changed, 31 insertions(+), 6 deletions(-)

diff --git a/src/Graphics_D3D11.c b/src/Graphics_D3D11.c
index 7a432efe6..7d50e6e07 100644
--- a/src/Graphics_D3D11.c
+++ b/src/Graphics_D3D11.c
@@ -213,7 +213,7 @@ GfxResourceID Gfx_CreateTexture(struct Bitmap* bmp, cc_uint8 flags, cc_bool mipm
 	if (!Math_IsPowOf2(bmp->width) || !Math_IsPowOf2(bmp->height)) {
 		Logger_Abort("Textures must have power of two dimensions");
 	}
-	if (Gfx.LostContext) return NULL;
+	if (Gfx.LostContext) return 0;
 
 	D3D11_TEXTURE2D_DESC desc = { 0 };
 	desc.Width     = bmp->width;
diff --git a/src/LScreens.c b/src/LScreens.c
index cae78303d..49c9abaab 100644
--- a/src/LScreens.c
+++ b/src/LScreens.c
@@ -532,6 +532,19 @@ static struct DirectConnectScreen {
 	struct LWidget* _widgets[6];
 } DirectConnectScreen_Instance;
 
+static void DirectConnectScreen_UrlFilter(cc_string* str) {
+	static const cc_string prefix = String_FromConst("mc://");
+	cc_string parts[6];
+	if (!String_CaselessStarts(str, &prefix)) return;
+	/* mc://[ip:port]/[username]/[mppass] */
+	if (String_UNSAFE_Split(str, '/', parts, 6) != 5) return;
+	
+	LInput_SetString(&DirectConnectScreen_Instance.iptAddress,  &parts[2]);
+	LInput_SetString(&DirectConnectScreen_Instance.iptUsername, &parts[3]);
+	LInput_SetString(&DirectConnectScreen_Instance.iptMppass,   &parts[4]);
+	str->length = 0;
+}
+
 CC_NOINLINE static void DirectConnectScreen_SetStatus(const char* text) {
 	struct LLabel* w = &DirectConnectScreen_Instance.lblStatus;
 	LLabel_SetConst(w, text);
@@ -617,6 +630,10 @@ static void DirectConnectScreen_Init(struct LScreen* s_) {
 	LButton_Init(s_, &s->btnBack,     80, 35, "Back");
 	LLabel_Init(s_,  &s->lblStatus, "");
 
+	s->iptUsername.ClipboardFilter = DirectConnectScreen_UrlFilter;
+	s->iptAddress.ClipboardFilter  = DirectConnectScreen_UrlFilter;
+	s->iptMppass.ClipboardFilter   = DirectConnectScreen_UrlFilter;
+
 	s->btnConnect.OnClick = DirectConnectScreen_StartClient;
 	s->btnBack.OnClick    = SwitchToMain;
 	/* Init input text from options */
diff --git a/src/LWidgets.c b/src/LWidgets.c
index d929c4218..c36f5ed7c 100644
--- a/src/LWidgets.c
+++ b/src/LWidgets.c
@@ -457,6 +457,12 @@ void LInput_Clear(struct LInput* w) {
 	LWidget_Redraw(w);
 }
 
+void LInput_SetString(struct LInput* w, const cc_string* str) {
+	LInput_SetText(w, str);
+	if (w->TextChanged) w->TextChanged(w);
+	LWidget_Redraw(w);
+}
+
 
 /*########################################################################################################################*
 *------------------------------------------------------LabelWidget--------------------------------------------------------*
diff --git a/src/LWidgets.h b/src/LWidgets.h
index d67d0fb6d..639e4d151 100644
--- a/src/LWidgets.h
+++ b/src/LWidgets.h
@@ -96,16 +96,18 @@ CC_NOINLINE void LInput_Init(struct LScreen* s, struct LInput* w, int width, con
 CC_NOINLINE void LInput_SetText(struct LInput* w, const cc_string* text);
 CC_NOINLINE void LInput_ClearText(struct LInput* w);
 
-/* Appends a character to the currently entered text. */
+/* Appends a character to the currently entered text */
 CC_NOINLINE void LInput_Append(struct LInput* w, char c);
-/* Appends a string to the currently entered text. */
+/* Appends a string to the currently entered text */
 CC_NOINLINE void LInput_AppendString(struct LInput* w, const cc_string* str);
-/* Removes the character preceding the caret in the currently entered text. */
+/* Removes the character preceding the caret in the currently entered text */
 CC_NOINLINE void LInput_Backspace(struct LInput* w);
-/* Removes the character at the caret in the currently entered text. */
+/* Removes the character at the caret in the currently entered text */
 CC_NOINLINE void LInput_Delete(struct LInput* w);
-/* Resets the currently entered text to an empty string. */
+/* Resets the currently entered text to an empty string */
 CC_NOINLINE void LInput_Clear(struct LInput* w);
+/* Sets the currently entered text to the given string */
+CC_NOINLINE void LInput_SetString(struct LInput* w, const cc_string* str);
 
 /* Represents non-interactable text. */
 struct LLabel {