mirror of
https://github.com/lihop/godot-xterm.git
synced 2024-11-10 04:40:25 +01:00
77 lines
1.6 KiB
GDScript
77 lines
1.6 KiB
GDScript
# Copyright (c) 2020 The GodotXterm authors.
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# Copyright (c) 2019 The xterm.js authors. All rights reserved.
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# License MIT
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extends Reference
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const Decoder = preload("res://addons/godot_xterm/input/text_decoder.gd")
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const EMPTY_HANDLERS = []
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var _handlers: Dictionary = {}
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var _active: Array = EMPTY_HANDLERS
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var _ident: int = 0
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var _handler_fb: Dictionary
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func _init():
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pass
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func set_handler(ident: int, handler):
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_handlers[ident] = [handler]
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func clear_handler(ident: int):
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_handlers.erase(ident)
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func set_handler_fallback(target, method):
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_handler_fb = {'target': target, 'method': method}
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func reset():
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if _active.size():
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unhook(false)
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_active = EMPTY_HANDLERS
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_ident = 0
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func hook(ident: int, params):
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# always reset leftover handlers
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reset()
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_ident = ident
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_active = _handlers[ident] if _handlers.has(ident) else EMPTY_HANDLERS
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if _active.empty():
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_handler_fb['target'].call(_handler_fb['method'], _ident, 'HOOK', params)
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else:
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_active.invert()
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for handler in _active:
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handler.hook(params)
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_active.invert()
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func put(data: Array, start: int, end: int):
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if _active.empty():
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_handler_fb['target'].call(_handler_fb['method'], _ident, 'PUT',
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Decoder.utf32_to_string(data, start, end))
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else:
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_active.invert()
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for handler in _active:
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handler.put(data, start, end)
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_active.invert()
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func unhook(success: bool):
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if _active.empty():
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_handler_fb['target'].call(_handler_fb['method'], _ident, 'UNHOOK', success)
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else:
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_active.invert()
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for handler in _active:
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if handler.unhook(success) != false:
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success = false # will cleanup left over handlers
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_active.invert()
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_active = EMPTY_HANDLERS
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_ident = 0
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