463 lines
17 KiB
Python
463 lines
17 KiB
Python
#!/usr/bin/env python
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# vim:fileencoding=utf-8
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# License: GPL v3 Copyright: 2016, Kovid Goyal <kovid at kovidgoyal.net>
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import re
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import sys
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import weakref
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from collections import deque
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from enum import Enum
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from itertools import count
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from time import monotonic
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from .config import build_ansi_color_table
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from .constants import (
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ScreenGeometry, WindowGeometry, appname, cell_size, get_boss,
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is_key_pressed, mouse_button_pressed, viewport_size, wakeup
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)
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from .fast_data_types import (
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BRACKETED_PASTE_END, BRACKETED_PASTE_START, CELL_PROGRAM,
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CURSOR_PROGRAM, GLFW_KEY_DOWN, GLFW_KEY_LEFT_SHIFT, GLFW_KEY_RIGHT_SHIFT,
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GLFW_KEY_UP, GLFW_MOD_SHIFT, GLFW_MOUSE_BUTTON_1, GLFW_MOUSE_BUTTON_4,
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GLFW_MOUSE_BUTTON_5, GLFW_MOUSE_BUTTON_MIDDLE, GLFW_PRESS, GLFW_RELEASE,
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SCROLL_FULL, SCROLL_LINE, SCROLL_PAGE, Screen,
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compile_program, create_cell_vao, glfw_post_empty_event, init_cell_program,
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init_cursor_program, remove_vao, set_window_render_data,
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update_window_title, update_window_visibility
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)
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from .keys import get_key_map
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from .mouse import DRAG, MOVE, PRESS, RELEASE, encode_mouse_event
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from .rgb import to_color
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from .terminfo import get_capabilities
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from .utils import (
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color_as_int, load_shaders, open_url, parse_color_set, sanitize_title,
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set_primary_selection
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)
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class DynamicColor(Enum):
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default_fg, default_bg, cursor_color, highlight_fg, highlight_bg = range(1, 6)
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DYNAMIC_COLOR_CODES = {
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10: DynamicColor.default_fg,
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11: DynamicColor.default_bg,
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12: DynamicColor.cursor_color,
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17: DynamicColor.highlight_bg,
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19: DynamicColor.highlight_fg,
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}
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DYNAMIC_COLOR_CODES.update({k+100: v for k, v in DYNAMIC_COLOR_CODES.items()})
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window_counter = count()
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next(window_counter)
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def calculate_gl_geometry(window_geometry, viewport_width, viewport_height, cell_width, cell_height):
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dx, dy = 2 * cell_width / viewport_width, 2 * cell_height / viewport_height
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xmargin = window_geometry.left / viewport_width
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ymargin = window_geometry.top / viewport_height
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xstart = -1 + 2 * xmargin
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ystart = 1 - 2 * ymargin
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return ScreenGeometry(xstart, ystart, window_geometry.xnum, window_geometry.ynum, dx, dy)
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def load_shader_programs():
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compile_program(CELL_PROGRAM, *load_shaders('cell'))
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init_cell_program()
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compile_program(CURSOR_PROGRAM, *load_shaders('cursor'))
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init_cursor_program()
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class Window:
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def __init__(self, tab, child, opts, args):
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self.id = next(window_counter)
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self.vao_id = create_cell_vao()
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self.tab_id = tab.id
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self.tabref = weakref.ref(tab)
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self.override_title = None
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self.last_mouse_cursor_pos = 0, 0
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self.destroyed = False
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self.click_queue = deque(maxlen=3)
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self.geometry = WindowGeometry(0, 0, 0, 0, 0, 0)
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self.needs_layout = True
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self.title = appname
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self.is_visible_in_layout = True
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self.child, self.opts = child, opts
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self.screen = Screen(self, 24, 80, opts.scrollback_lines)
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self.screen.color_profile.update_ansi_color_table(build_ansi_color_table(opts))
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self.screen.color_profile.set_configured_colors(*map(color_as_int, (
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opts.foreground, opts.background, opts.cursor, opts.selection_foreground, opts.selection_background)))
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def __repr__(self):
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return 'Window(title={}, id={})'.format(self.title, self.id)
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def set_visible_in_layout(self, window_idx, val):
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val = bool(val)
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if val is not self.is_visible_in_layout:
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self.is_visible_in_layout = val
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update_window_visibility(self.tab_id, window_idx, val)
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if val:
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self.refresh()
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def refresh(self):
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self.screen.mark_as_dirty()
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wakeup()
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def update_position(self, window_geometry):
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self.screen_geometry = sg = calculate_gl_geometry(window_geometry, viewport_size.width, viewport_size.height, cell_size.width, cell_size.height)
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return sg
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def set_geometry(self, window_idx, new_geometry):
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if self.destroyed:
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return
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if self.needs_layout or new_geometry.xnum != self.screen.columns or new_geometry.ynum != self.screen.lines:
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boss = get_boss()
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self.screen.resize(new_geometry.ynum, new_geometry.xnum)
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current_pty_size = (
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self.screen.lines, self.screen.columns,
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max(0, new_geometry.right - new_geometry.left), max(0, new_geometry.bottom - new_geometry.top))
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sg = self.update_position(new_geometry)
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self.needs_layout = False
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boss.child_monitor.resize_pty(self.id, *current_pty_size)
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else:
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sg = self.update_position(new_geometry)
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self.geometry = g = new_geometry
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set_window_render_data(self.tab_id, window_idx, self.vao_id, sg.xstart, sg.ystart, sg.dx, sg.dy, self.screen, *g[:4])
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def contains(self, x, y):
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g = self.geometry
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return g.left <= x <= g.right and g.top <= y <= g.bottom
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def close(self):
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get_boss().close_window(self)
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def on_child_death(self):
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if self.destroyed:
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return
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self.destroyed = True
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# Remove cycles so that screen is de-allocated immediately
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boss = get_boss()
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self.screen.reset_callbacks()
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boss.gui_close_window(self)
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self.screen = None
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def write_to_child(self, data):
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if data:
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if get_boss().child_monitor.needs_write(self.id, data) is True:
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wakeup()
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else:
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print('Failed to write to child %d as it does not exist' % self.id, file=sys.stderr)
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# screen callbacks {{{
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def bell(self):
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boss = get_boss()
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boss.request_attention()
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glfw_post_empty_event()
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def use_utf8(self, on):
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get_boss().child_monitor.set_iutf8(self.window_id, on)
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def focus_changed(self, focused):
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if focused:
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if self.screen.focus_tracking_enabled:
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self.write_to_child(b'\x1b[I')
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else:
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if self.screen.focus_tracking_enabled:
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self.write_to_child(b'\x1b[O')
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def title_changed(self, new_title):
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if self.override_title is None:
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self.title = sanitize_title(new_title or appname)
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update_window_title(self.tab_id, self.id, self.title)
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t = self.tabref()
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if t is not None:
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t.title_changed(self)
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glfw_post_empty_event()
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def icon_changed(self, new_icon):
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pass # TODO: Implement this
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def change_colors(self, changes):
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dirtied = False
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def item(raw):
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if raw is None:
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return 0
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val = to_color(raw)
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return None if val is None else (color_as_int(val) << 8) | 2
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for which, val in changes.items():
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val = item(val)
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if val is None:
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continue
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dirtied = True
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setattr(self.screen.color_profile, which.name, val)
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if dirtied:
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self.screen.mark_as_dirty()
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def set_dynamic_color(self, code, value):
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if isinstance(value, bytes):
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value = value.decode('utf-8')
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color_changes = {}
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for val in value.split(';'):
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w = DYNAMIC_COLOR_CODES.get(code)
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if w is not None:
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if code >= 110:
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val = None
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color_changes[w] = val
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code += 1
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self.change_colors(color_changes)
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glfw_post_empty_event()
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def set_color_table_color(self, code, value):
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cp = self.screen.color_profile
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if code == 4:
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for c, val in parse_color_set(value):
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cp.set_color(c, val)
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cp.dirty = True
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self.refresh()
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elif code == 104:
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if not value.strip():
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cp.reset_color_table()
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else:
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for c in value.split(';'):
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try:
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c = int(c)
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except Exception:
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continue
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if 0 <= c <= 255:
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cp.reset_color(c)
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cp.dirty = True
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self.refresh()
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def request_capabilities(self, q):
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self.write_to_child(get_capabilities(q))
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def buf_toggled(self, is_main_linebuf):
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self.screen.scroll(SCROLL_FULL, False)
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# }}}
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# mouse handling {{{
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def multi_click(self, count, x, y):
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x, y = self.cell_for_pos(x, y)
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if x is not None:
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line = self.screen.visual_line(y)
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if line is not None and count in (2, 3):
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if count == 2:
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start_x, xlimit = self.screen.selection_range_for_word(x, y, self.opts.select_by_word_characters)
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end_x = max(start_x, xlimit - 1)
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elif count == 3:
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start_x, xlimit = self.screen.selection_range_for_line(y)
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end_x = max(start_x, xlimit - 1)
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self.screen.start_selection(start_x, y)
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self.screen.update_selection(end_x, y, True)
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ps = self.text_for_selection()
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if ps:
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set_primary_selection(ps)
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def cell_for_pos(self, x, y):
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x, y = int(x // cell_size.width), int(y // cell_size.height)
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if 0 <= x < self.screen.columns and 0 <= y < self.screen.lines:
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return x, y
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return None, None
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def dispatch_multi_click(self, x, y):
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if len(self.click_queue) > 2 and self.click_queue[-1] - self.click_queue[-3] <= 2 * self.opts.click_interval:
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self.multi_click(3, x, y)
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glfw_post_empty_event()
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elif len(self.click_queue) > 1 and self.click_queue[-1] - self.click_queue[-2] <= self.opts.click_interval:
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self.multi_click(2, x, y)
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glfw_post_empty_event()
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def update_drag(self, is_press, mx, my):
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x, y = self.cell_for_pos(mx, my)
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if x is None:
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x = 0 if mx <= cell_size.width else self.screen.columns - 1
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y = 0 if my <= cell_size.height else self.screen.lines - 1
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ps = None
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if is_press:
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self.screen.start_selection(x, y)
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elif self.screen.is_selection_in_progress():
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ended = is_press is False
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self.screen.update_selection(x, y, ended)
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if ended:
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ps = self.text_for_selection()
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if ps and ps.strip():
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set_primary_selection(ps)
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def has_url_at(self, x, y):
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x, y = self.cell_for_pos(x, y)
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if x is not None:
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l = self.screen.visual_line(y)
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if l is not None:
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text = str(l)
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for m in self.url_pat.finditer(text):
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if m.start() <= x < m.end():
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return True
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return False
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def click_url(self, x, y):
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x, y = self.cell_for_pos(x, y)
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if x is not None:
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l = self.screen.visual_line(y)
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if l is not None:
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text = str(l)
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for m in self.url_pat.finditer(text):
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if m.start() <= x < m.end():
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url = ''.join(l[i] for i in range(*m.span())).rstrip('.')
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# Remove trailing "] and similar
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url = re.sub(r'''["'][)}\]]$''', '', url)
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# Remove closing trailing character if it is matched by it's
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# corresponding opening character before the url
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if m.start() > 0:
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before = l[m.start() - 1]
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closing = {'(': ')', '[': ']', '{': '}', '<': '>', '"': '"', "'": "'", '`': '`', '|': '|', ':': ':'}.get(before)
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if closing is not None and url.endswith(closing):
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url = url[:-1]
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if url:
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open_url(url, self.opts.open_url_with)
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def text_for_selection(self):
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return ''.join(self.screen.text_for_selection())
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def on_mouse_button(self, button, action, mods):
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mode = self.screen.mouse_tracking_mode()
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handle_event = mods == GLFW_MOD_SHIFT or mode == 0 or button == GLFW_MOUSE_BUTTON_MIDDLE or (
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mods == self.opts.open_url_modifiers and button == GLFW_MOUSE_BUTTON_1)
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x, y = self.last_mouse_cursor_pos
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if handle_event:
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if button == GLFW_MOUSE_BUTTON_1:
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self.update_drag(action == GLFW_PRESS, x, y)
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if action == GLFW_RELEASE:
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if mods == self.opts.open_url_modifiers:
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self.click_url(x, y)
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self.click_queue.append(monotonic())
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self.dispatch_multi_click(x, y)
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elif button == GLFW_MOUSE_BUTTON_MIDDLE:
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if action == GLFW_RELEASE:
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self.paste_from_selection()
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else:
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x, y = self.cell_for_pos(x, y)
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if x is not None:
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ev = encode_mouse_event(mode, self.screen.mouse_tracking_protocol(),
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button, PRESS if action == GLFW_PRESS else RELEASE, mods, x, y)
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if ev:
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self.write_to_child(ev)
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def on_mouse_move(self, x, y):
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button = None
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for b in range(0, GLFW_MOUSE_BUTTON_5 + 1):
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if mouse_button_pressed[b]:
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button = b
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break
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mode = self.screen.mouse_tracking_mode()
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ANY_MODE, MOTION_MODE = 3, 2
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send_event = (mode == ANY_MODE or (mode == MOTION_MODE and button is not None)) and not (
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is_key_pressed[GLFW_KEY_LEFT_SHIFT] or is_key_pressed[GLFW_KEY_RIGHT_SHIFT])
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x, y = max(0, x - self.geometry.left), max(0, y - self.geometry.top)
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self.last_mouse_cursor_pos = x, y
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get_boss().change_mouse_cursor(self.has_url_at(x, y))
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if send_event:
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action = MOVE if button is None else DRAG
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x, y = self.cell_for_pos(x, y)
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if x is not None:
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ev = encode_mouse_event(mode, self.screen.mouse_tracking_protocol(),
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button, action, 0, x, y)
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if ev:
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self.write_to_child(ev)
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else:
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if self.screen.is_selection_in_progress():
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self.update_drag(None, x, y)
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margin = cell_size.height // 2
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if y <= margin or y >= self.geometry.bottom - margin:
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get_boss().ui_timers.add(0.02, self.drag_scroll)
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def drag_scroll(self):
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x, y = self.last_mouse_cursor_pos
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margin = cell_size.height // 2
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if y <= margin or y >= self.geometry.bottom - margin:
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self.scroll_line_up() if y < 50 else self.scroll_line_down()
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self.update_drag(None, x, y)
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return 0.02 # causes the timer to be re-added
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def on_mouse_scroll(self, x, y):
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s = int(round(y * self.opts.wheel_scroll_multiplier))
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if abs(s) < 0:
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return
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upwards = s > 0
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if self.screen.is_main_linebuf():
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self.screen.scroll(abs(s), upwards)
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glfw_post_empty_event()
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else:
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mode = self.screen.mouse_tracking_mode()
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send_event = mode > 0
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if send_event:
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x, y = self.last_mouse_cursor_pos
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x, y = self.cell_for_pos(x, y)
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if x is not None:
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ev = encode_mouse_event(mode, self.screen.mouse_tracking_protocol(),
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GLFW_MOUSE_BUTTON_4 if upwards else GLFW_MOUSE_BUTTON_5, PRESS, 0, x, y)
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if ev:
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self.write_to_child(ev)
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else:
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k = get_key_map(self.screen)[GLFW_KEY_UP if upwards else GLFW_KEY_DOWN]
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self.write_to_child(k * abs(s))
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# }}}
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def destroy(self):
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if self.vao_id is not None:
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remove_vao(self.vao_id)
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self.vao_id = None
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# actions {{{
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def show_scrollback(self):
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data = []
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self.screen.historybuf.as_ansi(data.append)
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self.screen.linebuf.as_ansi(data.append)
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data = ''.join(data).encode('utf-8')
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get_boss().display_scrollback(data)
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def paste(self, text):
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if text and not self.destroyed:
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if isinstance(text, str):
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text = text.encode('utf-8')
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if self.screen.in_bracketed_paste_mode:
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text = BRACKETED_PASTE_START.encode('ascii') + text + BRACKETED_PASTE_END.encode('ascii')
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self.write_to_child(text)
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def copy_to_clipboard(self):
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text = self.text_for_selection()
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if text:
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get_boss().glfw_window.set_clipboard_string(text)
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def scroll_line_up(self):
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if self.screen.is_main_linebuf():
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self.screen.scroll(SCROLL_LINE, True)
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glfw_post_empty_event()
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def scroll_line_down(self):
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if self.screen.is_main_linebuf():
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self.screen.scroll(SCROLL_LINE, False)
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glfw_post_empty_event()
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def scroll_page_up(self):
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if self.screen.is_main_linebuf():
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self.screen.scroll(SCROLL_PAGE, True)
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glfw_post_empty_event()
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def scroll_page_down(self):
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if self.screen.is_main_linebuf():
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self.screen.scroll(SCROLL_PAGE, False)
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glfw_post_empty_event()
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def scroll_home(self):
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if self.screen.is_main_linebuf():
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self.screen.scroll(SCROLL_FULL, True)
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glfw_post_empty_event()
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def scroll_end(self):
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if self.screen.is_main_linebuf():
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self.screen.scroll(SCROLL_FULL, False)
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glfw_post_empty_event()
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# }}}
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