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Diffstat (limited to 'lib/widget/input.h')
| -rw-r--r-- | lib/widget/input.h | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/lib/widget/input.h b/lib/widget/input.h new file mode 100644 index 0000000..bd7aa26 --- /dev/null +++ b/lib/widget/input.h @@ -0,0 +1,155 @@ + +/** \file input.h + * \brief Header: WInput widget + */ + +#ifndef MC__WIDGET_INPUT_H +#define MC__WIDGET_INPUT_H + +#include <limits.h> /* MB_LEN_MAX */ + +/*** typedefs(not structures) and defined constants **********************************************/ + +#define INPUT(x) ((WInput *)(x)) + +/* For history load-save functions */ +#define INPUT_LAST_TEXT ((char *) 2) + +/*** enums ***************************************************************************************/ + +typedef enum +{ + WINPUTC_MAIN, /* color used */ + WINPUTC_MARK, /* color for marked text */ + WINPUTC_UNCHANGED, /* color for inactive text (Is first keystroke) */ + WINPUTC_HISTORY, /* color for history list */ + WINPUTC_COUNT_COLORS /* count of used colors */ +} input_colors_enum_t; + +/* completion flags */ +typedef enum +{ + INPUT_COMPLETE_NONE = 0, + INPUT_COMPLETE_FILENAMES = 1 << 0, + INPUT_COMPLETE_HOSTNAMES = 1 << 1, + INPUT_COMPLETE_COMMANDS = 1 << 2, + INPUT_COMPLETE_VARIABLES = 1 << 3, + INPUT_COMPLETE_USERNAMES = 1 << 4, + INPUT_COMPLETE_CD = 1 << 5, + INPUT_COMPLETE_SHELL_ESC = 1 << 6, +} input_complete_t; + +/*** structures declarations (and typedefs of structures)*****************************************/ + +typedef int input_colors_t[WINPUTC_COUNT_COLORS]; + +typedef struct +{ + Widget widget; + + GString *buffer; + const int *color; + int point; /* cursor position in the input line in characters */ + int mark; /* the mark position in characters; negative value means no marked text */ + int term_first_shown; /* column of the first shown character */ + gboolean first; /* is first keystroke? */ + int disable_update; /* do we want to skip updates? */ + gboolean is_password; /* is this a password input line? */ + gboolean init_from_history; /* init text will be get from history */ + gboolean need_push; /* need to push the current Input on hist? */ + gboolean strip_password; /* need to strip password before placing string to history */ + char **completions; /* possible completions array */ + input_complete_t completion_flags; + char charbuf[MB_LEN_MAX]; /* buffer for multibytes characters */ + size_t charpoint; /* point to end of mulibyte sequence in charbuf */ + WLabel *label; /* label associated with this input line */ + struct input_history_t + { + char *name; /* name of history for loading and saving */ + GList *list; /* the history */ + GList *current; /* current history item */ + gboolean changed; /* the history has changed */ + } history; +} WInput; + +/*** global variables defined in .c file *********************************************************/ + +extern int quote; + +extern const global_keymap_t *input_map; + +/* Color styles for normal and command line input widgets */ +extern input_colors_t input_colors; + +/*** declarations of public functions ************************************************************/ + +WInput *input_new (int y, int x, const int *colors, + int len, const char *text, const char *histname, + input_complete_t completion_flags); +/* callback is public; needed for command line */ +cb_ret_t input_callback (Widget * w, Widget * sender, widget_msg_t msg, int parm, void *data); +void input_set_default_colors (void); +cb_ret_t input_handle_char (WInput * in, int key); +void input_assign_text (WInput * in, const char *text); +void input_insert (WInput * in, const char *text, gboolean insert_extra_space); +void input_set_point (WInput * in, int pos); +void input_update (WInput * in, gboolean clear_first); +void input_enable_update (WInput * in); +void input_disable_update (WInput * in); +void input_clean (WInput * in); + +/* input_complete.c */ +void input_complete (WInput * in); +void input_complete_free (WInput * in); + +/* --------------------------------------------------------------------------------------------- */ +/*** inline functions ****************************************************************************/ +/* --------------------------------------------------------------------------------------------- */ + +/** + * Get text of input line. + * + * @param in input line + * + * @return newly allocated string that contains a copy of @in's text. + */ +static inline char * +input_get_text (const WInput * in) +{ + return g_strndup (in->buffer->str, in->buffer->len); +} + +/* --------------------------------------------------------------------------------------------- */ + +/** + * Get pointer to input line buffer. + * + * @param in input line + * + * @return pointer to @in->buffer->str. + */ +static inline const char * +input_get_ctext (const WInput * in) +{ + return in->buffer->str; +} + +/* --------------------------------------------------------------------------------------------- */ + +/** + * Is input line empty or not. + * + * @param in input line + * + * @return TRUE if buffer of @in is empty, FALSE otherwise. + */ +static inline gboolean +input_is_empty (const WInput * in) +{ + return (in->buffer->len == 0); +} + +/* --------------------------------------------------------------------------------------------- */ + + +#endif /* MC__WIDGET_INPUT_H */ |