Keyboard gestures
Factor handbook » UI framework » Implementing new gadgets » UI gestures
Factor handbook » UI framework » Implementing new gadgets » UI gestures
| Prev: | Keyboard focus |
| Next: | Action gestures |
There are two types of keyboard gestures:
Each keyboard gesture has a set of modifiers and a key symbol. The set modifiers is denoted by an array which must either be f, or an order-preserving subsequence of the following:
A key symbol is either a single-character string denoting literal input, or one of the following strings:
The S+ modifier is only ever used with the above action keys; alphanumeric input input with the shift key is delivered without the S+ modifier set, instead the input itself is upper case. For example, the gesture corresponding to s with the Control and Shift keys pressed is presented as
The RET and TAB keys are never delivered in their literal form ("\n" and "\t").
key-down
key-up
Each keyboard gesture has a set of modifiers and a key symbol. The set modifiers is denoted by an array which must either be f, or an order-preserving subsequence of the following:
{ S+ C+ A+ M+ }
S+
C+
A+
M+
A key symbol is either a single-character string denoting literal input, or one of the following strings:
| • | CLEAR |
| • | RET |
| • | ENTER |
| • | ESC |
| • | TAB |
| • | BACKSPACE |
| • | HOME |
| • | DELETE |
| • | END |
| • | F1 |
| • | F2 |
| • | F3 |
| • | F4 |
| • | F5 |
| • | F6 |
| • | F7 |
| • | F8 |
| • | F9 |
| • | F10 |
| • | F11 |
| • | F12 |
| • | LEFT |
| • | RIGHT |
| • | DOWN |
| • | UP |
| • | PAGE_UP |
| • | PAGE_DOWN |
The S+ modifier is only ever used with the above action keys; alphanumeric input input with the shift key is delivered without the S+ modifier set, instead the input itself is upper case. For example, the gesture corresponding to s with the Control and Shift keys pressed is presented as
T{ key-down f { C+ } "S" }
The RET and TAB keys are never delivered in their literal form ("\n" and "\t").