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57 lines
2.3 KiB
Plaintext
57 lines
2.3 KiB
Plaintext
Json-Rpc user interface
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=======================
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Kakoune user interfaces can be implemented through the json-rpc 2.0 protocol.
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By launching kakoune in client mode with the `-ui json` option, the launched
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client will write newline separated json-rpc requests on stdout and read
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json-rpc requests on stdin. Errors will be reported on stderr (not in
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json format).
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Kakoune requests are always using positional parameters, never named, and
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Kakoune won't be able to parse named parameters in requests.
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Here are the data structures used:
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* Color: a string, either a named color, or #rrggbb, or 'default'
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* Attribute: one of {exclusive, underline, reverse, blink, bold, dim, italic}
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* Face { Color fg; Color bg; Array<Attribute> attributes; }
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* Atom { Face face; String contents; }
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* Line : Array of Atom
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* Coord { int line; int column }
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Here are the requests that can be written by the json ui on stdout:
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* draw(Array<Line> lines, Face default_face, Face padding_face)
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padding_face is the face of the padding characters '~' in the
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terminal UI.
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* draw_status(Line status_line, Line mode_line,
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Face default_face)
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* menu_show(Array<Line> items, Coord anchor, Face selected_item_face, Face menu_face,
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String style)
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style can be:
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- prompt: display the menu as a prompt menu (anchor is ignored)
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- inline: display the menu next to (above or below) the anchor coordinate
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* menu_select(int selected)
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* menu_hide()
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* info_show(String title, String content, Coord anchor, Face face, String style)
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style can be:
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- prompt: display the info as a prompt info (anchor is ignored)
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- inline: display the info next to (above or below) the anchor coordinate
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- inlineAbove: display the info next to (above) the anchor coordinate
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- inlineBelow: display the info next to (below) the anchor coordinate
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- menuDoc: display the info next to the menu, as a documentation for it
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- modal: display the info in a way that shows Kakoune is waiting for a
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special action related to it.
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* info_hide()
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* set_cursor(String mode, Coord coord)
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set the main cursor position
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mode can be:
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- prompt: the coordinate line should be 0, and the cursor is in the prompt area
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- buffer: the cursor is in the buffer display area
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The requests that the json ui can interpret on stdin are:
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* keys(String key1, String key2...): keystrokes
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* resize(int rows, int columns): notify ui resize
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