Implement display type and clickable status text links

See discord/discord-api-docs#7674

Thank you @foxfirecodes!

Author: ungive

include/discord_rpc.h

@@ -26,8 +26,8 @@ extern "C" {
 #define DISCORD_BUTTONS_SIZE 2
 
 typedef struct DiscordButton {
-    const char* label;
-    const char* url;
+    const char* label; /* FIXME limit? */
+    const char* url;   /* FIXME limit? */
 } DiscordButton;
 
 typedef enum DiscordActivityType {
@@ -39,10 +39,19 @@ typedef enum DiscordActivityType {
     DiscordActivityType_Competing = 5
 } DiscordActivityType;
 
+typedef enum DiscordStatusDisplayType {
+    DiscordStatusDisplayType_Name = 0, // the default
+    DiscordStatusDisplayType_State = 1,
+    DiscordStatusDisplayType_Details = 2
+} DiscordStatusDisplayType;
+
 typedef struct DiscordRichPresence {
     DiscordActivityType type;
-    const char* state;   /* max 128 bytes */
-    const char* details; /* max 128 bytes */
+    DiscordStatusDisplayType status_display_type;
+    const char* state;       /* max 128 bytes */
+    const char* state_url;   /* FIXME limit? */
+    const char* details;     /* max 128 bytes */
+    const char* details_url; /* FIXME limit? */
     int64_t startTimestamp;
     int64_t endTimestamp;
     const char* largeImageKey;  /* max 32 bytes */

src/serialization.cpp

@@ -108,8 +108,14 @@ size_t JsonWriteRichPresenceObj(char* dest,
                 WriteKey(writer, "type");
                 writer.Int(presence->type);
 
+                WriteKey(writer, "status_display_type");
+                writer.Int(presence->status_display_type);
+
                 WriteOptionalString(writer, "state", presence->state);
+                WriteOptionalString(writer, "state_url", presence->state_url);
+
                 WriteOptionalString(writer, "details", presence->details);
+                WriteOptionalString(writer, "details_url", presence->details_url);
 
                 if (presence->startTimestamp || presence->endTimestamp) {
                     WriteObject timestamps(writer, "timestamps");