From 6ccb7b5fa520497461b282cf6a32dfac276f43d7 Mon Sep 17 00:00:00 2001
From: James Ross-Gowan <rossymiles@gmail.com>
Date: Mon, 24 Apr 2017 22:04:25 +1000
Subject: command: mark some commands as "scalable"

Scalable commands (seek, cycle and add) understand the cmd->scale
parameter and will "scale" their action accordingly, for example, a seek
with scale = 0.5 will only seek half the specified amount and a seek
with scale = 2.0 will seek twice as much.

Mark these commands so in the next commit, input.c will be able to
synthesize input with cmd->scale = 1 for non-scalable commands.
---
 input/cmd_list.c | 13 +++++++++++--
 input/cmd_list.h |  3 +++
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/input/cmd_list.c b/input/cmd_list.c
index 33cf40f233..07dd924cbf 100644
--- a/input/cmd_list.c
+++ b/input/cmd_list.c
@@ -72,6 +72,7 @@ const struct mp_cmd_def mp_cmds[] = {
                       {"exact", 32|16})),
     },
     .allow_auto_repeat = true,
+    .scalable = true,
   },
   { MP_CMD_REVERT_SEEK, "revert-seek", {
       OARG_FLAGS(0, ({"mark", 1})),
@@ -148,12 +149,15 @@ const struct mp_cmd_def mp_cmds[] = {
 
   { MP_CMD_SET, "set", { ARG_STRING,  ARG_STRING } },
   { MP_CMD_ADD, "add", { ARG_STRING, OARG_DOUBLE(1) },
-    .allow_auto_repeat = true},
+    .allow_auto_repeat = true,
+    .scalable = true,
+  },
   { MP_CMD_CYCLE, "cycle", {
       ARG_STRING,
       OARG_CYCLEDIR(1),
     },
-    .allow_auto_repeat = true
+    .allow_auto_repeat = true,
+    .scalable = true,
   },
   { MP_CMD_MULTIPLY, "multiply", { ARG_STRING, ARG_DOUBLE },
     .allow_auto_repeat = true},
@@ -348,6 +352,11 @@ bool mp_input_is_repeatable_cmd(struct mp_cmd *cmd)
            (cmd->flags & MP_ALLOW_REPEAT);
 }
 
+bool mp_input_is_scalable_cmd(struct mp_cmd *cmd)
+{
+    return cmd->def && cmd->def->scalable;
+}
+
 void mp_print_cmd_list(struct mp_log *out)
 {
     for (int i = 0; mp_cmds[i].name; i++) {
diff --git a/input/cmd_list.h b/input/cmd_list.h
index 404df462f4..cf881af2bb 100644
--- a/input/cmd_list.h
+++ b/input/cmd_list.h
@@ -32,6 +32,7 @@ struct mp_cmd_def {
     bool allow_auto_repeat; // react to repeated key events
     bool on_updown;     // always emit it on both up and down key events
     bool vararg;        // last argument can be given 0 to multiple times
+    bool scalable;
 };
 
 extern const struct mp_cmd_def mp_cmds[];
@@ -131,6 +132,8 @@ bool mp_input_is_abort_cmd(struct mp_cmd *cmd);
 
 bool mp_input_is_repeatable_cmd(struct mp_cmd *cmd);
 
+bool mp_input_is_scalable_cmd(struct mp_cmd *cmd);
+
 struct bstr;
 bool mp_replace_legacy_cmd(void *talloc_ctx, struct bstr *s);
 
-- 
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