You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
110 lines
4.1 KiB
110 lines
4.1 KiB
# Kaleidoscope-Leader
|
|
|
|
![status][st:stable] [![Build Status][travis:image]][travis:status]
|
|
|
|
[travis:image]: https://travis-ci.org/keyboardio/Kaleidoscope-Leader.svg?branch=master
|
|
[travis:status]: https://travis-ci.org/keyboardio/Kaleidoscope-Leader
|
|
|
|
[st:stable]: https://img.shields.io/badge/stable-✔-black.svg?style=flat&colorA=44cc11&colorB=494e52
|
|
[st:broken]: https://img.shields.io/badge/broken-X-black.svg?style=flat&colorA=e05d44&colorB=494e52
|
|
[st:experimental]: https://img.shields.io/badge/experimental----black.svg?style=flat&colorA=dfb317&colorB=494e52
|
|
|
|
Leader keys are a kind of key where when they are tapped, all following keys are
|
|
swallowed, until the plugin finds a matching sequence in the dictionary, it
|
|
times out, or fails to find any possibilities. When a sequence is found, the
|
|
corresponding action is executed, but the processing still continues. If any key
|
|
is pressed that is not the continuation of the existing sequence, processing
|
|
aborts, and the key is handled normally.
|
|
|
|
This behaviour is best described with an example. Suppose we want a behaviour
|
|
where `LEAD u` starts unicode input mode, and `LEAD u h e a r t` should result
|
|
in a heart symbol being input, and we want `LEAD u 0 0 e 9 SPC` to input `é`,
|
|
and any other hex code that follows `LEAD u`, should be handled as-is, and
|
|
passed to the host. Obviously, we can't have all of this in a dictionary.
|
|
|
|
So we put `LEAD u` and `LEAD u h e a r t` in the dictionary only. The first will
|
|
start unicode input mode, the second will type in the magic sequence that
|
|
results in the symbol, and then aborts the leader sequence processing. With this
|
|
setup, if we type `LEAD u 0`, then `LEAD u` will be handled first, and start
|
|
unicode input mode. Then, at the `0`, the plugin notices it is not part of any
|
|
sequence, so aborts leader processing, and passes the key on as-is, and it ends
|
|
up being sent to the host. Thus, we covered all the cases of our scenario!
|
|
|
|
## Using the plugin
|
|
|
|
To use the plugin, one needs to include the header, implement some actions,
|
|
create a dictionary, and configure the provided `Leader` object to use the
|
|
dictionary:
|
|
|
|
```c++
|
|
#include <Kaleidoscope.h>
|
|
#include <Kaleidoscope-Leader.h>
|
|
|
|
static void leaderA() {
|
|
Serial.println("leaderA");
|
|
}
|
|
|
|
static void leaderTX() {
|
|
Serial.println("leaderTX");
|
|
}
|
|
|
|
static const kaleidoscope::Leader::dictionary_t leader_dictionary PROGMEM =
|
|
LEADER_DICT({LEADER_SEQ(LEAD(0), Key_A), leaderA},
|
|
{LEADER_SEQ(LEAD(0), Key_T, Key_X), leaderTX});
|
|
|
|
void setup() {
|
|
Serial.begin(9600);
|
|
|
|
USE_PLUGINS(&Leader);
|
|
|
|
Kaleidoscope.setup();
|
|
|
|
Leader.dictionary = leader_dictionary;
|
|
}
|
|
```
|
|
|
|
The dictionary is made up of a list of keys, and an action callback. Using the
|
|
`LEADER_DICT` and `LEADER_SEQ` helpers is recommended. The dictionary *must* be
|
|
marked `PROGMEM`!
|
|
|
|
**Note** that we need to use the `Leader` object before any other that adds or
|
|
changes key behaviour! Failing to do so may result in unpredictable behaviour.
|
|
|
|
## Plugin methods
|
|
|
|
The plugin provides the `Leader` object, with the following methods and properties:
|
|
|
|
### `.dictionary`
|
|
|
|
> Set this property to the dictionary `Leader` should use. The dictionary is an
|
|
> array of `kaleidoscope::Leader::dictionary_t` elements. Each element is made
|
|
> up of two elements, the first being a list of keys, the second an action to
|
|
> perform when the sequence is found.i
|
|
>
|
|
> The dictionary *MUST* reside in `PROGMEM`.
|
|
|
|
### `.reset()`
|
|
|
|
> Finishes the leader sequence processing. This is best called from actions that
|
|
> are final actions, where one does not wish to continue the leader sequence
|
|
> further in the hopes of finding a longer match.
|
|
|
|
### `.time_out`
|
|
|
|
> The number of milliseconds to wait before a sequence times out. Once the
|
|
> sequence timed out, if there is a partial match with an action, that will be
|
|
> performed, otherwise the Leader sequence will simply reset.
|
|
>
|
|
> Defaults to 1000.
|
|
|
|
## Dependencies
|
|
|
|
* [Kaleidoscope-Ranges](https://github.com/keyboardio/Kaleidoscope-Ranges)
|
|
|
|
## Further reading
|
|
|
|
Starting from the [example][plugin:example] is the recommended way of getting
|
|
started with the plugin.
|
|
|
|
[plugin:example]: https://github.com/keyboardio/Kaleidoscope-Leader/blob/master/examples/Leader/Leader.ino
|