349 lines
18 KiB
Python
349 lines
18 KiB
Python
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from __future__ import annotations
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import sys
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from typing import TYPE_CHECKING
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from prompt_toolkit.data_structures import Point
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from prompt_toolkit.key_binding.key_processor import KeyPress, KeyPressEvent
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from prompt_toolkit.keys import Keys
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from prompt_toolkit.mouse_events import (
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MouseButton,
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MouseEvent,
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MouseEventType,
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MouseModifier,
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)
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from ..key_bindings import KeyBindings
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if TYPE_CHECKING:
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from prompt_toolkit.key_binding.key_bindings import NotImplementedOrNone
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__all__ = [
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"load_mouse_bindings",
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]
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E = KeyPressEvent
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# fmt: off
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SCROLL_UP = MouseEventType.SCROLL_UP
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SCROLL_DOWN = MouseEventType.SCROLL_DOWN
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MOUSE_DOWN = MouseEventType.MOUSE_DOWN
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MOUSE_MOVE = MouseEventType.MOUSE_MOVE
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MOUSE_UP = MouseEventType.MOUSE_UP
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NO_MODIFIER : frozenset[MouseModifier] = frozenset()
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SHIFT : frozenset[MouseModifier] = frozenset({MouseModifier.SHIFT})
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ALT : frozenset[MouseModifier] = frozenset({MouseModifier.ALT})
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SHIFT_ALT : frozenset[MouseModifier] = frozenset({MouseModifier.SHIFT, MouseModifier.ALT})
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CONTROL : frozenset[MouseModifier] = frozenset({MouseModifier.CONTROL})
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SHIFT_CONTROL : frozenset[MouseModifier] = frozenset({MouseModifier.SHIFT, MouseModifier.CONTROL})
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ALT_CONTROL : frozenset[MouseModifier] = frozenset({MouseModifier.ALT, MouseModifier.CONTROL})
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SHIFT_ALT_CONTROL: frozenset[MouseModifier] = frozenset({MouseModifier.SHIFT, MouseModifier.ALT, MouseModifier.CONTROL})
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UNKNOWN_MODIFIER : frozenset[MouseModifier] = frozenset()
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LEFT = MouseButton.LEFT
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MIDDLE = MouseButton.MIDDLE
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RIGHT = MouseButton.RIGHT
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NO_BUTTON = MouseButton.NONE
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UNKNOWN_BUTTON = MouseButton.UNKNOWN
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xterm_sgr_mouse_events = {
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( 0, "m") : (LEFT, MOUSE_UP, NO_MODIFIER), # left_up 0+ + + =0
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( 4, "m") : (LEFT, MOUSE_UP, SHIFT), # left_up Shift 0+4+ + =4
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( 8, "m") : (LEFT, MOUSE_UP, ALT), # left_up Alt 0+ +8+ =8
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(12, "m") : (LEFT, MOUSE_UP, SHIFT_ALT), # left_up Shift Alt 0+4+8+ =12
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(16, "m") : (LEFT, MOUSE_UP, CONTROL), # left_up Control 0+ + +16=16
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(20, "m") : (LEFT, MOUSE_UP, SHIFT_CONTROL), # left_up Shift Control 0+4+ +16=20
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(24, "m") : (LEFT, MOUSE_UP, ALT_CONTROL), # left_up Alt Control 0+ +8+16=24
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(28, "m") : (LEFT, MOUSE_UP, SHIFT_ALT_CONTROL), # left_up Shift Alt Control 0+4+8+16=28
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( 1, "m") : (MIDDLE, MOUSE_UP, NO_MODIFIER), # middle_up 1+ + + =1
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( 5, "m") : (MIDDLE, MOUSE_UP, SHIFT), # middle_up Shift 1+4+ + =5
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( 9, "m") : (MIDDLE, MOUSE_UP, ALT), # middle_up Alt 1+ +8+ =9
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(13, "m") : (MIDDLE, MOUSE_UP, SHIFT_ALT), # middle_up Shift Alt 1+4+8+ =13
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(17, "m") : (MIDDLE, MOUSE_UP, CONTROL), # middle_up Control 1+ + +16=17
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(21, "m") : (MIDDLE, MOUSE_UP, SHIFT_CONTROL), # middle_up Shift Control 1+4+ +16=21
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(25, "m") : (MIDDLE, MOUSE_UP, ALT_CONTROL), # middle_up Alt Control 1+ +8+16=25
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(29, "m") : (MIDDLE, MOUSE_UP, SHIFT_ALT_CONTROL), # middle_up Shift Alt Control 1+4+8+16=29
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( 2, "m") : (RIGHT, MOUSE_UP, NO_MODIFIER), # right_up 2+ + + =2
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( 6, "m") : (RIGHT, MOUSE_UP, SHIFT), # right_up Shift 2+4+ + =6
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(10, "m") : (RIGHT, MOUSE_UP, ALT), # right_up Alt 2+ +8+ =10
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(14, "m") : (RIGHT, MOUSE_UP, SHIFT_ALT), # right_up Shift Alt 2+4+8+ =14
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(18, "m") : (RIGHT, MOUSE_UP, CONTROL), # right_up Control 2+ + +16=18
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(22, "m") : (RIGHT, MOUSE_UP, SHIFT_CONTROL), # right_up Shift Control 2+4+ +16=22
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(26, "m") : (RIGHT, MOUSE_UP, ALT_CONTROL), # right_up Alt Control 2+ +8+16=26
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(30, "m") : (RIGHT, MOUSE_UP, SHIFT_ALT_CONTROL), # right_up Shift Alt Control 2+4+8+16=30
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( 0, "M") : (LEFT, MOUSE_DOWN, NO_MODIFIER), # left_down 0+ + + =0
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( 4, "M") : (LEFT, MOUSE_DOWN, SHIFT), # left_down Shift 0+4+ + =4
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( 8, "M") : (LEFT, MOUSE_DOWN, ALT), # left_down Alt 0+ +8+ =8
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(12, "M") : (LEFT, MOUSE_DOWN, SHIFT_ALT), # left_down Shift Alt 0+4+8+ =12
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(16, "M") : (LEFT, MOUSE_DOWN, CONTROL), # left_down Control 0+ + +16=16
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(20, "M") : (LEFT, MOUSE_DOWN, SHIFT_CONTROL), # left_down Shift Control 0+4+ +16=20
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(24, "M") : (LEFT, MOUSE_DOWN, ALT_CONTROL), # left_down Alt Control 0+ +8+16=24
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(28, "M") : (LEFT, MOUSE_DOWN, SHIFT_ALT_CONTROL), # left_down Shift Alt Control 0+4+8+16=28
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( 1, "M") : (MIDDLE, MOUSE_DOWN, NO_MODIFIER), # middle_down 1+ + + =1
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( 5, "M") : (MIDDLE, MOUSE_DOWN, SHIFT), # middle_down Shift 1+4+ + =5
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( 9, "M") : (MIDDLE, MOUSE_DOWN, ALT), # middle_down Alt 1+ +8+ =9
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(13, "M") : (MIDDLE, MOUSE_DOWN, SHIFT_ALT), # middle_down Shift Alt 1+4+8+ =13
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(17, "M") : (MIDDLE, MOUSE_DOWN, CONTROL), # middle_down Control 1+ + +16=17
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(21, "M") : (MIDDLE, MOUSE_DOWN, SHIFT_CONTROL), # middle_down Shift Control 1+4+ +16=21
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(25, "M") : (MIDDLE, MOUSE_DOWN, ALT_CONTROL), # middle_down Alt Control 1+ +8+16=25
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(29, "M") : (MIDDLE, MOUSE_DOWN, SHIFT_ALT_CONTROL), # middle_down Shift Alt Control 1+4+8+16=29
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( 2, "M") : (RIGHT, MOUSE_DOWN, NO_MODIFIER), # right_down 2+ + + =2
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( 6, "M") : (RIGHT, MOUSE_DOWN, SHIFT), # right_down Shift 2+4+ + =6
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(10, "M") : (RIGHT, MOUSE_DOWN, ALT), # right_down Alt 2+ +8+ =10
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(14, "M") : (RIGHT, MOUSE_DOWN, SHIFT_ALT), # right_down Shift Alt 2+4+8+ =14
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(18, "M") : (RIGHT, MOUSE_DOWN, CONTROL), # right_down Control 2+ + +16=18
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(22, "M") : (RIGHT, MOUSE_DOWN, SHIFT_CONTROL), # right_down Shift Control 2+4+ +16=22
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(26, "M") : (RIGHT, MOUSE_DOWN, ALT_CONTROL), # right_down Alt Control 2+ +8+16=26
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(30, "M") : (RIGHT, MOUSE_DOWN, SHIFT_ALT_CONTROL), # right_down Shift Alt Control 2+4+8+16=30
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(32, "M") : (LEFT, MOUSE_MOVE, NO_MODIFIER), # left_drag 32+ + + =32
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(36, "M") : (LEFT, MOUSE_MOVE, SHIFT), # left_drag Shift 32+4+ + =36
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(40, "M") : (LEFT, MOUSE_MOVE, ALT), # left_drag Alt 32+ +8+ =40
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(44, "M") : (LEFT, MOUSE_MOVE, SHIFT_ALT), # left_drag Shift Alt 32+4+8+ =44
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(48, "M") : (LEFT, MOUSE_MOVE, CONTROL), # left_drag Control 32+ + +16=48
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(52, "M") : (LEFT, MOUSE_MOVE, SHIFT_CONTROL), # left_drag Shift Control 32+4+ +16=52
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(56, "M") : (LEFT, MOUSE_MOVE, ALT_CONTROL), # left_drag Alt Control 32+ +8+16=56
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(60, "M") : (LEFT, MOUSE_MOVE, SHIFT_ALT_CONTROL), # left_drag Shift Alt Control 32+4+8+16=60
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(33, "M") : (MIDDLE, MOUSE_MOVE, NO_MODIFIER), # middle_drag 33+ + + =33
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(37, "M") : (MIDDLE, MOUSE_MOVE, SHIFT), # middle_drag Shift 33+4+ + =37
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(41, "M") : (MIDDLE, MOUSE_MOVE, ALT), # middle_drag Alt 33+ +8+ =41
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(45, "M") : (MIDDLE, MOUSE_MOVE, SHIFT_ALT), # middle_drag Shift Alt 33+4+8+ =45
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(49, "M") : (MIDDLE, MOUSE_MOVE, CONTROL), # middle_drag Control 33+ + +16=49
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(53, "M") : (MIDDLE, MOUSE_MOVE, SHIFT_CONTROL), # middle_drag Shift Control 33+4+ +16=53
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(57, "M") : (MIDDLE, MOUSE_MOVE, ALT_CONTROL), # middle_drag Alt Control 33+ +8+16=57
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(61, "M") : (MIDDLE, MOUSE_MOVE, SHIFT_ALT_CONTROL), # middle_drag Shift Alt Control 33+4+8+16=61
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(34, "M") : (RIGHT, MOUSE_MOVE, NO_MODIFIER), # right_drag 34+ + + =34
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(38, "M") : (RIGHT, MOUSE_MOVE, SHIFT), # right_drag Shift 34+4+ + =38
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(42, "M") : (RIGHT, MOUSE_MOVE, ALT), # right_drag Alt 34+ +8+ =42
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(46, "M") : (RIGHT, MOUSE_MOVE, SHIFT_ALT), # right_drag Shift Alt 34+4+8+ =46
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(50, "M") : (RIGHT, MOUSE_MOVE, CONTROL), # right_drag Control 34+ + +16=50
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(54, "M") : (RIGHT, MOUSE_MOVE, SHIFT_CONTROL), # right_drag Shift Control 34+4+ +16=54
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(58, "M") : (RIGHT, MOUSE_MOVE, ALT_CONTROL), # right_drag Alt Control 34+ +8+16=58
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(62, "M") : (RIGHT, MOUSE_MOVE, SHIFT_ALT_CONTROL), # right_drag Shift Alt Control 34+4+8+16=62
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(35, "M") : (NO_BUTTON, MOUSE_MOVE, NO_MODIFIER), # none_drag 35+ + + =35
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(39, "M") : (NO_BUTTON, MOUSE_MOVE, SHIFT), # none_drag Shift 35+4+ + =39
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(43, "M") : (NO_BUTTON, MOUSE_MOVE, ALT), # none_drag Alt 35+ +8+ =43
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(47, "M") : (NO_BUTTON, MOUSE_MOVE, SHIFT_ALT), # none_drag Shift Alt 35+4+8+ =47
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(51, "M") : (NO_BUTTON, MOUSE_MOVE, CONTROL), # none_drag Control 35+ + +16=51
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(55, "M") : (NO_BUTTON, MOUSE_MOVE, SHIFT_CONTROL), # none_drag Shift Control 35+4+ +16=55
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(59, "M") : (NO_BUTTON, MOUSE_MOVE, ALT_CONTROL), # none_drag Alt Control 35+ +8+16=59
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(63, "M") : (NO_BUTTON, MOUSE_MOVE, SHIFT_ALT_CONTROL), # none_drag Shift Alt Control 35+4+8+16=63
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(64, "M") : (NO_BUTTON, SCROLL_UP, NO_MODIFIER), # scroll_up 64+ + + =64
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(68, "M") : (NO_BUTTON, SCROLL_UP, SHIFT), # scroll_up Shift 64+4+ + =68
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(72, "M") : (NO_BUTTON, SCROLL_UP, ALT), # scroll_up Alt 64+ +8+ =72
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(76, "M") : (NO_BUTTON, SCROLL_UP, SHIFT_ALT), # scroll_up Shift Alt 64+4+8+ =76
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(80, "M") : (NO_BUTTON, SCROLL_UP, CONTROL), # scroll_up Control 64+ + +16=80
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(84, "M") : (NO_BUTTON, SCROLL_UP, SHIFT_CONTROL), # scroll_up Shift Control 64+4+ +16=84
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(88, "M") : (NO_BUTTON, SCROLL_UP, ALT_CONTROL), # scroll_up Alt Control 64+ +8+16=88
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(92, "M") : (NO_BUTTON, SCROLL_UP, SHIFT_ALT_CONTROL), # scroll_up Shift Alt Control 64+4+8+16=92
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(65, "M") : (NO_BUTTON, SCROLL_DOWN, NO_MODIFIER), # scroll_down 64+ + + =65
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(69, "M") : (NO_BUTTON, SCROLL_DOWN, SHIFT), # scroll_down Shift 64+4+ + =69
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(73, "M") : (NO_BUTTON, SCROLL_DOWN, ALT), # scroll_down Alt 64+ +8+ =73
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(77, "M") : (NO_BUTTON, SCROLL_DOWN, SHIFT_ALT), # scroll_down Shift Alt 64+4+8+ =77
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(81, "M") : (NO_BUTTON, SCROLL_DOWN, CONTROL), # scroll_down Control 64+ + +16=81
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(85, "M") : (NO_BUTTON, SCROLL_DOWN, SHIFT_CONTROL), # scroll_down Shift Control 64+4+ +16=85
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(89, "M") : (NO_BUTTON, SCROLL_DOWN, ALT_CONTROL), # scroll_down Alt Control 64+ +8+16=89
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(93, "M") : (NO_BUTTON, SCROLL_DOWN, SHIFT_ALT_CONTROL), # scroll_down Shift Alt Control 64+4+8+16=93
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}
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typical_mouse_events = {
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32: (LEFT , MOUSE_DOWN , UNKNOWN_MODIFIER),
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33: (MIDDLE , MOUSE_DOWN , UNKNOWN_MODIFIER),
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34: (RIGHT , MOUSE_DOWN , UNKNOWN_MODIFIER),
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35: (UNKNOWN_BUTTON , MOUSE_UP , UNKNOWN_MODIFIER),
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64: (LEFT , MOUSE_MOVE , UNKNOWN_MODIFIER),
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65: (MIDDLE , MOUSE_MOVE , UNKNOWN_MODIFIER),
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66: (RIGHT , MOUSE_MOVE , UNKNOWN_MODIFIER),
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67: (NO_BUTTON , MOUSE_MOVE , UNKNOWN_MODIFIER),
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96: (NO_BUTTON , SCROLL_UP , UNKNOWN_MODIFIER),
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97: (NO_BUTTON , SCROLL_DOWN, UNKNOWN_MODIFIER),
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}
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urxvt_mouse_events={
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32: (UNKNOWN_BUTTON, MOUSE_DOWN , UNKNOWN_MODIFIER),
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35: (UNKNOWN_BUTTON, MOUSE_UP , UNKNOWN_MODIFIER),
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96: (NO_BUTTON , SCROLL_UP , UNKNOWN_MODIFIER),
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97: (NO_BUTTON , SCROLL_DOWN, UNKNOWN_MODIFIER),
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}
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# fmt:on
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def load_mouse_bindings() -> KeyBindings:
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"""
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Key bindings, required for mouse support.
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(Mouse events enter through the key binding system.)
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"""
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key_bindings = KeyBindings()
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@key_bindings.add(Keys.Vt100MouseEvent)
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def _(event: E) -> NotImplementedOrNone:
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"""
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Handling of incoming mouse event.
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"""
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# TypicaL: "eSC[MaB*"
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# Urxvt: "Esc[96;14;13M"
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# Xterm SGR: "Esc[<64;85;12M"
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# Parse incoming packet.
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if event.data[2] == "M":
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# Typical.
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mouse_event, x, y = map(ord, event.data[3:])
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# TODO: Is it possible to add modifiers here?
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mouse_button, mouse_event_type, mouse_modifiers = typical_mouse_events[
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mouse_event
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]
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# Handle situations where `PosixStdinReader` used surrogateescapes.
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if x >= 0xDC00:
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x -= 0xDC00
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if y >= 0xDC00:
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y -= 0xDC00
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x -= 32
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y -= 32
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else:
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# Urxvt and Xterm SGR.
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# When the '<' is not present, we are not using the Xterm SGR mode,
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# but Urxvt instead.
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data = event.data[2:]
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if data[:1] == "<":
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sgr = True
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data = data[1:]
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else:
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sgr = False
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# Extract coordinates.
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mouse_event, x, y = map(int, data[:-1].split(";"))
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m = data[-1]
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# Parse event type.
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if sgr:
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try:
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(
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mouse_button,
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mouse_event_type,
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mouse_modifiers,
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) = xterm_sgr_mouse_events[mouse_event, m]
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except KeyError:
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return NotImplemented
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else:
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# Some other terminals, like urxvt, Hyper terminal, ...
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(
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mouse_button,
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mouse_event_type,
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mouse_modifiers,
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) = urxvt_mouse_events.get(
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mouse_event, (UNKNOWN_BUTTON, MOUSE_MOVE, UNKNOWN_MODIFIER)
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)
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x -= 1
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y -= 1
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|
|
|
||
|
|
# Only handle mouse events when we know the window height.
|
||
|
|
if event.app.renderer.height_is_known and mouse_event_type is not None:
|
||
|
|
# Take region above the layout into account. The reported
|
||
|
|
# coordinates are absolute to the visible part of the terminal.
|
||
|
|
from prompt_toolkit.renderer import HeightIsUnknownError
|
||
|
|
|
||
|
|
try:
|
||
|
|
y -= event.app.renderer.rows_above_layout
|
||
|
|
except HeightIsUnknownError:
|
||
|
|
return NotImplemented
|
||
|
|
|
||
|
|
# Call the mouse handler from the renderer.
|
||
|
|
|
||
|
|
# Note: This can return `NotImplemented` if no mouse handler was
|
||
|
|
# found for this position, or if no repainting needs to
|
||
|
|
# happen. this way, we avoid excessive repaints during mouse
|
||
|
|
# movements.
|
||
|
|
handler = event.app.renderer.mouse_handlers.mouse_handlers[y][x]
|
||
|
|
return handler(
|
||
|
|
MouseEvent(
|
||
|
|
position=Point(x=x, y=y),
|
||
|
|
event_type=mouse_event_type,
|
||
|
|
button=mouse_button,
|
||
|
|
modifiers=mouse_modifiers,
|
||
|
|
)
|
||
|
|
)
|
||
|
|
|
||
|
|
return NotImplemented
|
||
|
|
|
||
|
|
@key_bindings.add(Keys.ScrollUp)
|
||
|
|
def _scroll_up(event: E) -> None:
|
||
|
|
"""
|
||
|
|
Scroll up event without cursor position.
|
||
|
|
"""
|
||
|
|
# We don't receive a cursor position, so we don't know which window to
|
||
|
|
# scroll. Just send an 'up' key press instead.
|
||
|
|
event.key_processor.feed(KeyPress(Keys.Up), first=True)
|
||
|
|
|
||
|
|
@key_bindings.add(Keys.ScrollDown)
|
||
|
|
def _scroll_down(event: E) -> None:
|
||
|
|
"""
|
||
|
|
Scroll down event without cursor position.
|
||
|
|
"""
|
||
|
|
event.key_processor.feed(KeyPress(Keys.Down), first=True)
|
||
|
|
|
||
|
|
@key_bindings.add(Keys.WindowsMouseEvent)
|
||
|
|
def _mouse(event: E) -> NotImplementedOrNone:
|
||
|
|
"""
|
||
|
|
Handling of mouse events for Windows.
|
||
|
|
"""
|
||
|
|
# This key binding should only exist for Windows.
|
||
|
|
if sys.platform == "win32":
|
||
|
|
# Parse data.
|
||
|
|
pieces = event.data.split(";")
|
||
|
|
|
||
|
|
button = MouseButton(pieces[0])
|
||
|
|
event_type = MouseEventType(pieces[1])
|
||
|
|
x = int(pieces[2])
|
||
|
|
y = int(pieces[3])
|
||
|
|
|
||
|
|
# Make coordinates absolute to the visible part of the terminal.
|
||
|
|
output = event.app.renderer.output
|
||
|
|
|
||
|
|
from prompt_toolkit.output.win32 import Win32Output
|
||
|
|
from prompt_toolkit.output.windows10 import Windows10_Output
|
||
|
|
|
||
|
|
if isinstance(output, (Win32Output, Windows10_Output)):
|
||
|
|
screen_buffer_info = output.get_win32_screen_buffer_info()
|
||
|
|
rows_above_cursor = (
|
||
|
|
screen_buffer_info.dwCursorPosition.Y
|
||
|
|
- event.app.renderer._cursor_pos.y
|
||
|
|
)
|
||
|
|
y -= rows_above_cursor
|
||
|
|
|
||
|
|
# Call the mouse event handler.
|
||
|
|
# (Can return `NotImplemented`.)
|
||
|
|
handler = event.app.renderer.mouse_handlers.mouse_handlers[y][x]
|
||
|
|
|
||
|
|
return handler(
|
||
|
|
MouseEvent(
|
||
|
|
position=Point(x=x, y=y),
|
||
|
|
event_type=event_type,
|
||
|
|
button=button,
|
||
|
|
modifiers=UNKNOWN_MODIFIER,
|
||
|
|
)
|
||
|
|
)
|
||
|
|
|
||
|
|
# No mouse handler found. Return `NotImplemented` so that we don't
|
||
|
|
# invalidate the UI.
|
||
|
|
return NotImplemented
|
||
|
|
|
||
|
|
return key_bindings
|