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# -*- coding: utf-8 -*-
# Pitivi Developer Console
# Copyright (c) 2017-2018, Fabian Orccon <cfoch.fabian@gmail.com>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this program; if not, see <http://www.gnu.org/licenses/>.
"""The developer console widget."""
from gi.repository import Gdk
from gi.repository import GLib
from gi.repository import GObject
from gi.repository import Gtk
from gi.repository import Pango
from plugins.console.consolebuffer import ConsoleBuffer
class ConsoleView(Gtk.TextView):
"""A TextView which removes tags from pasted text."""
def do_paste_clipboard(self):
# pylint: disable=arguments-differ
buf = self.get_buffer()
insert = buf.get_insert()
paste_mark = buf.create_mark("paste-mark", buf.get_iter_at_mark(insert),
left_gravity=True)
Gtk.TextView.do_paste_clipboard(self)
start = buf.get_iter_at_mark(paste_mark)
end = buf.get_iter_at_mark(insert)
buf.remove_all_tags(start, end)
buf.delete_mark(paste_mark)
class ConsoleWidget(Gtk.ScrolledWindow):
"""An emulated Python console.
The console can be used to access an app, window, or anything through the
provided namespace. It works redirecting stdout and stderr to a
GtkTextBuffer. This class is (and should be) independent of the application
it is integrated with.
"""
__gsignals__ = {
"eof": (GObject.SignalFlags.RUN_LAST, None, ()),
}
def __init__(self, namespace, welcome_message=""):
Gtk.ScrolledWindow.__init__(self)
self._view = ConsoleView()
buf = ConsoleBuffer(namespace, welcome_message)
self._view.set_buffer(buf)
self._view.set_editable(True)
self.add(self._view)
self._view.connect("key-press-event", self.__key_press_event_cb)
buf.connect("mark-set", self.__mark_set_cb)
buf.connect("insert-text", self.__insert_text_cb)
# Font color and style.
self._provider = Gtk.CssProvider()
self._css_values = {
"textview": {
"font-family": None,
"font-size": None,
"font-style": None,
"font-variant": None,
"font-weight": None
},
"textview > *": {
"color": None
}
}
def scroll_to_end(self):
"""Scrolls the view to the end."""
end_iter = self._view.get_buffer().get_end_iter()
self._view.scroll_to_iter(end_iter, within_margin=0.0, use_align=False,
xalign=0, yalign=0)
return False
def set_font(self, font_desc):
"""Sets the font.
Args:
font_desc (str): a PangoFontDescription as a string.
"""
pango_font_desc = Pango.FontDescription.from_string(font_desc)
self._css_values["textview"]["font-family"] = pango_font_desc.get_family()
self._css_values["textview"]["font-size"] = "%dpt" % int(pango_font_desc.get_size() / Pango.SCALE)
self._css_values["textview"]["font-style"] = pango_font_desc.get_style().value_nick
self._css_values["textview"]["font-variant"] = pango_font_desc.get_variant().value_nick
self._css_values["textview"]["font-weight"] = int(pango_font_desc.get_weight())
self._apply_css()
def set_color(self, color):
"""Sets the color.
Args:
color (Gdk.RGBA): a color.
"""
self._css_values["textview > *"]["color"] = color.to_string()
self._apply_css()
def _apply_css(self):
css = ""
for css_klass, props in self._css_values.items():
css += "%s {" % css_klass
for prop, value in props.items():
if value is not None:
css += "%s: %s;" % (prop, value)
css += "} "
css = css.encode("UTF-8")
self._provider.load_from_data(css)
Gtk.StyleContext.add_provider(self._view.get_style_context(),
self._provider,
Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION)
def set_stdout_color(self, color):
"""Sets the color of the stdout text."""
self._view.get_buffer().output.set_property("foreground-rgba", color)
def set_stderr_color(self, color):
"""Sets the color of the stderr text."""
self._view.get_buffer().error.set_property("foreground-rgba", color)
# pylint: disable=too-many-return-statements
def __key_press_event_cb(self, view, event):
buf = view.get_buffer()
state = event.state & Gtk.accelerator_get_default_mod_mask()
ctrl = state & Gdk.ModifierType.CONTROL_MASK
if event.keyval == Gdk.KEY_Return:
buf.process_command_line()
return True
if event.keyval in (Gdk.KEY_KP_Down, Gdk.KEY_Down):
buf.history.down(buf.get_command_line())
return True
if event.keyval in (Gdk.KEY_KP_Up, Gdk.KEY_Up):
buf.history.up(buf.get_command_line())
return True
if event.keyval in (Gdk.KEY_KP_Left, Gdk.KEY_Left, Gdk.KEY_BackSpace):
return buf.is_cursor(at=True)
if event.keyval in (Gdk.KEY_KP_Home, Gdk.KEY_Home):
buf.place_cursor(buf.get_iter_at_mark(buf.prompt_mark))
return True
if (ctrl and event.keyval == Gdk.KEY_d) or event.keyval == Gdk.KEY_Escape:
return self.emit("eof")
return False
def __mark_set_cb(self, buf, unused_iter, mark):
if not mark.props.name == "insert":
return
self._view.set_editable(buf.is_cursor(at=True, after=True))
def __insert_text_cb(self, buf, unused_iter, unused_text, unused_len):
GLib.idle_add(self.scroll_to_end)
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