Пример #1
0
    def split_axis(self,
                   widget,
                   vertical=True,
                   cwd=None,
                   sibling=None,
                   widgetfirst=True):
        """Split the axis of a terminal inside us"""
        dbg('called for widget: %s' % widget)
        order = None
        page_num = self.page_num(widget)
        if page_num == -1:
            err('Notebook::split_axis: %s not found in Notebook' % widget)
            return

        label = self.get_tab_label(widget)
        self.remove(widget)

        maker = Factory()
        if vertical:
            container = maker.make('vpaned')
        else:
            container = maker.make('hpaned')

        self.get_toplevel().set_pos_by_ratio = True

        if not sibling:
            sibling = maker.make('terminal')
            sibling.set_cwd(cwd)
            if self.config['always_split_with_profile']:
                sibling.force_set_profile(None, widget.get_profile())
            sibling.spawn_child()
            if widget.group and self.config['split_to_group']:
                sibling.set_group(None, widget.group)
        elif self.config['always_split_with_profile']:
            sibling.force_set_profile(None, widget.get_profile())

        self.insert_page(container, None, page_num)
        self.child_set_property(container, 'tab-expand', True)
        self.child_set_property(container, 'tab-fill', True)
        self.set_tab_reorderable(container, True)
        self.set_tab_label(container, label)
        self.show_all()

        order = [widget, sibling]
        if widgetfirst is False:
            order.reverse()

        for terminal in order:
            container.add(terminal)
        self.set_current_page(page_num)

        self.show_all()

        while Gtk.events_pending():
            Gtk.main_iteration_do(False)
        self.get_toplevel().set_pos_by_ratio = False

        GLib.idle_add(terminal.ensure_visible_and_focussed)
Пример #2
0
    def new_window(self, cwd=None, profile=None):
        """Create a window with a Terminal in it"""
        maker = Factory()
        window = maker.make('Window')
        terminal = maker.make('Terminal')
        if cwd:
            terminal.set_cwd(cwd)
        if profile and self.config['always_split_with_profile']:
            terminal.force_set_profile(None, profile)
        window.add(terminal)
        window.show(True)
        terminal.spawn_child()

        return (window, terminal)
Пример #3
0
    def split_axis(self,
                   widget,
                   vertical=True,
                   cwd=None,
                   sibling=None,
                   widgetfirst=True):
        """Split the window"""
        if self.get_property('term_zoomed') == True:
            err("You can't split while a terminal is maximised/zoomed")
            return

        order = None
        maker = Factory()
        self.remove(widget)

        if vertical:
            container = maker.make('VPaned')
        else:
            container = maker.make('HPaned')

        self.set_pos_by_ratio = True

        if not sibling:
            sibling = maker.make('Terminal')
            sibling.set_cwd(cwd)
            if self.config['always_split_with_profile']:
                sibling.force_set_profile(None, widget.get_profile())
            sibling.spawn_child()
            if widget.group and self.config['split_to_group']:
                sibling.set_group(None, widget.group)
        elif self.config['always_split_with_profile']:
            sibling.force_set_profile(None, widget.get_profile())

        self.add(container)
        container.show_all()

        order = [widget, sibling]
        if widgetfirst is False:
            order.reverse()

        for term in order:
            container.add(term)
        container.show_all()

        while Gtk.events_pending():
            Gtk.main_iteration_do(False)
        sibling.grab_focus()
        self.set_pos_by_ratio = False
Пример #4
0
    def tab_new(self, widget=None, debugtab=False, _param1=None, _param2=None):
        """Make a new tab"""
        cwd = None
        profile = None

        if self.get_property('term_zoomed') == True:
            err("You can't create a tab while a terminal is maximised/zoomed")
            return

        if widget:
            cwd = widget.get_cwd()
            profile = widget.get_profile()

        maker = Factory()
        if not self.is_child_notebook():
            dbg('Making a new Notebook')
            notebook = maker.make('Notebook', window=self)
        self.show()
        self.present()
        return self.get_child().newtab(debugtab, cwd=cwd, profile=profile)
Пример #5
0
    def newtab(self, debugtab=False, widget=None, cwd=None, metadata=None, profile=None):
        """Add a new tab, optionally supplying a child widget"""
        dbg('making a new tab')
        maker = Factory()
        top_window = self.get_toplevel()

        if not widget:
            widget = maker.make('Terminal')
            if cwd:
                widget.set_cwd(cwd)
            if profile and self.config['always_split_with_profile']:
                widget.force_set_profile(None, profile)
            widget.spawn_child(debugserver=debugtab)
        elif profile and self.config['always_split_with_profile']:
            widget.force_set_profile(None, profile)

        signals = {'close-term': self.wrapcloseterm,
                   'split-horiz': self.split_horiz,
                   'split-vert': self.split_vert,
                   'title-change': self.propagate_title_change,
                   'unzoom': self.unzoom,
                   'tab-change': top_window.tab_change,
                   'group-all': top_window.group_all,
                   'group-all-toggle': top_window.group_all_toggle,
                   'ungroup-all': top_window.ungroup_all,
                   'group-tab': top_window.group_tab,
                   'group-tab-toggle': top_window.group_tab_toggle,
                   'ungroup-tab': top_window.ungroup_tab,
                   'move-tab': top_window.move_tab,
                   'tab-new': [top_window.tab_new, widget],
                   'navigate': top_window.navigate_terminal}

        if maker.isinstance(widget, 'Terminal'):
            for signal in signals:
                args = []
                handler = signals[signal]
                if isinstance(handler, list):
                    args = handler[1:]
                    handler = handler[0]
                self.connect_child(widget, signal, handler, *args)

        if metadata and metadata.has_key('tabnum'):
            tabpos = metadata['tabnum']
        else:
            tabpos = -1

        label = TabLabel(self.window.get_title(), self)
        if metadata and metadata.has_key('label'):
            dbg('creating TabLabel with text: %s' % metadata['label'])
            label.set_custom_label(metadata['label'])
        label.connect('close-clicked', self.closetab)

        label.show_all()
        widget.show_all()

        dbg('inserting page at position: %s' % tabpos)
        self.insert_page(widget, None, tabpos)

        if maker.isinstance(widget, 'Terminal'):
            containers, objects = ([], [widget])
        else:
            containers, objects = enumerate_descendants(widget)

        term_widget = None
        for term_widget in objects:
            if maker.isinstance(term_widget, 'Terminal'):
                self.set_last_active_term(term_widget.uuid)
                break

        self.set_tab_label(widget, label)
        self.child_set_property(widget, 'tab-expand', True)
        self.child_set_property(widget, 'tab-fill', True)

        self.set_tab_reorderable(widget, True)
        self.set_current_page(tabpos)
        self.show_all()
        if maker.isinstance(term_widget, 'Terminal'):
            widget.grab_focus()
Пример #6
0
class Paned(Container):
    """Base class for Paned Containers"""

    position = None
    maker = None
    ratio = 0.5
    last_balance_time = 0
    last_balance_args = None

    def __init__(self):
        """Class initialiser"""
        self.terminator = Terminator()
        self.maker = Factory()
        Container.__init__(self)
        self.signals.append({
            'name': 'resize-term',
            'flags': GObject.SignalFlags.RUN_LAST,
            'return_type': None,
            'param_types': (GObject.TYPE_STRING, )
        })

    # pylint: disable-msg=W0613
    def split_axis(self,
                   widget,
                   vertical=True,
                   cwd=None,
                   sibling=None,
                   widgetfirst=True):
        """Default axis splitter. This should be implemented by subclasses"""
        order = None

        self.remove(widget)
        if vertical:
            container = VPaned()
        else:
            container = HPaned()

        self.get_toplevel().set_pos_by_ratio = True

        if not sibling:
            sibling = self.maker.make('terminal')
            sibling.set_cwd(cwd)
            if self.config['always_split_with_profile']:
                sibling.force_set_profile(None, widget.get_profile())
            sibling.spawn_child()
            if widget.group and self.config['split_to_group']:
                sibling.set_group(None, widget.group)
        elif self.config['always_split_with_profile']:
            sibling.force_set_profile(None, widget.get_profile())

        self.add(container)
        self.show_all()

        order = [widget, sibling]
        if widgetfirst is False:
            order.reverse()

        for terminal in order:
            container.add(terminal)

        self.show_all()
        sibling.grab_focus()

        while Gtk.events_pending():
            Gtk.main_iteration_do(False)
        self.get_toplevel().set_pos_by_ratio = False

    def add(self, widget, metadata=None):
        """Add a widget to the container"""
        if len(self.children) == 0:
            self.pack1(widget, False, True)
            self.children.append(widget)
        elif len(self.children) == 1:
            if self.get_child1():
                self.pack2(widget, False, True)
            else:
                self.pack1(widget, False, True)
            self.children.append(widget)
        else:
            raise ValueError('Paned widgets can only have two children')

        if self.maker.isinstance(widget, 'Terminal'):
            top_window = self.get_toplevel()
            signals = {
                'close-term': self.wrapcloseterm,
                'split-horiz': self.split_horiz,
                'split-vert': self.split_vert,
                'title-change': self.propagate_title_change,
                'resize-term': self.resizeterm,
                'size-allocate': self.new_size,
                'zoom': top_window.zoom,
                'tab-change': top_window.tab_change,
                'group-all': top_window.group_all,
                'group-all-toggle': top_window.group_all_toggle,
                'ungroup-all': top_window.ungroup_all,
                'group-tab': top_window.group_tab,
                'group-tab-toggle': top_window.group_tab_toggle,
                'ungroup-tab': top_window.ungroup_tab,
                'move-tab': top_window.move_tab,
                'maximise': [top_window.zoom, False],
                'tab-new': [top_window.tab_new, widget],
                'navigate': top_window.navigate_terminal,
                'rotate-cw': [top_window.rotate, True],
                'rotate-ccw': [top_window.rotate, False]
            }

            for signal in signals:
                args = []
                handler = signals[signal]
                if isinstance(handler, list):
                    args = handler[1:]
                    handler = handler[0]
                self.connect_child(widget, signal, handler, *args)

            if metadata and \
               'had_focus' in metadata and \
               metadata['had_focus'] == True:
                widget.grab_focus()

        elif isinstance(widget, Gtk.Paned):
            try:
                self.connect_child(widget, 'resize-term', self.resizeterm)
                self.connect_child(widget, 'size-allocate', self.new_size)
            except TypeError:
                err('Paned::add: %s has no signal resize-term' % widget)

    def on_button_press(self, widget, event):
        """Handle button presses on a Pane"""
        if event.button == 1 and event.type == Gdk.EventType._2BUTTON_PRESS:
            if event.get_state(
            ) & Gdk.ModifierType.MOD4_MASK == Gdk.ModifierType.MOD4_MASK:
                recurse_up = True
            else:
                recurse_up = False

            if event.get_state(
            ) & Gdk.ModifierType.SHIFT_MASK == Gdk.ModifierType.SHIFT_MASK:
                recurse_down = True
            else:
                recurse_down = False

            self.last_balance_time = time.time()
            self.last_balance_args = (recurse_up, recurse_down)
            return True
        else:
            return False

    def on_button_release(self, widget, event):
        """Handle button presses on a Pane"""
        if event.button == 1:
            if self.last_balance_time > (time.time() - 1):
                # Dumb loop still needed, or some terms get squished on a Super rebalance
                for i in range(3):
                    while Gtk.events_pending():
                        Gtk.main_iteration_do(False)
                    self.do_redistribute(*self.last_balance_args)
        return False

    def set_autoresize(self, autoresize):
        """Must be called on the highest ancestor in one given orientation"""
        """TODO write some better doc :)"""
        maker = Factory()
        children = self.get_children()
        self.child_set_property(children[0], 'resize', False)
        self.child_set_property(children[1], 'resize', not autoresize)
        for child in children:
            if maker.type(child) == maker.type(self):
                child.set_autoresize(autoresize)

    def do_redistribute(self, recurse_up=False, recurse_down=False):
        """Evenly divide available space between sibling panes"""
        maker = Factory()
        #1 Find highest ancestor of the same type => ha
        highest_ancestor = self
        while type(highest_ancestor.get_parent()) == type(highest_ancestor):
            highest_ancestor = highest_ancestor.get_parent()

        highest_ancestor.set_autoresize(False)

        # (1b) If Super modifier, redistribute higher sections too
        if recurse_up:
            grandfather = highest_ancestor.get_parent()
            if maker.isinstance(grandfather, 'VPaned') or \
               maker.isinstance(grandfather, 'HPaned') :
                grandfather.do_redistribute(recurse_up, recurse_down)

        highest_ancestor._do_redistribute(recurse_up, recurse_down)

        GLib.idle_add(highest_ancestor.set_autoresize, True)

    def _do_redistribute(self, recurse_up=False, recurse_down=False):
        maker = Factory()
        #2 Make a list of self + all children of same type
        tree = [self, [], 0, None]
        toproc = [tree]
        number_splits = 1
        while toproc:
            curr = toproc.pop(0)
            for child in curr[0].get_children():
                if type(child) == type(curr[0]):
                    childset = [child, [], 0, curr]
                    curr[1].append(childset)
                    toproc.append(childset)
                    number_splits = number_splits + 1
                else:
                    curr[1].append([None, [], 1, None])
                    p = curr
                    while p:
                        p[2] = p[2] + 1
                        p = p[3]
                    # (1c) If Shift modifier, redistribute lower sections too
                    if recurse_down and \
                      (maker.isinstance(child, 'VPaned') or \
                       maker.isinstance(child, 'HPaned')):
                        child.do_redistribute(False, True)

        #3 Get ancestor x/y => a, and handle size => hs
        avail_pixels = self.get_length()
        handle_size = self.get_handlesize()
        #4 Math! eek (a - (n * hs)) / (n + 1) = single size => s
        single_size = (avail_pixels -
                       (number_splits * handle_size)) / (number_splits + 1)
        arr_sizes = [single_size] * (number_splits + 1)
        for i in range(avail_pixels % (number_splits + 1)):
            arr_sizes[i] = arr_sizes[i] + 1
        #5 Descend down setting the handle position to s
        #  (Has to handle nesting properly)
        toproc = [tree]
        while toproc:
            curr = toproc.pop(0)
            for child in curr[1]:
                toproc.append(child)
                if curr[1].index(child) == 0:
                    curr[0].set_position((child[2] * single_size) +
                                         ((child[2] - 1) * handle_size))

    def remove(self, widget):
        """Remove a widget from the container"""
        Gtk.Paned.remove(self, widget)
        self.disconnect_child(widget)
        self.children.remove(widget)
        return True

    def get_children(self):
        """Return an ordered list of our children"""
        children = []
        children.append(self.get_child1())
        children.append(self.get_child2())
        return children

    def get_child_metadata(self, widget):
        """Return metadata about a child"""
        metadata = {}
        metadata['had_focus'] = widget.has_focus()

    def get_handlesize(self):
        """Why oh why, gtk3?"""
        try:
            value = GObject.Value(int)
            self.style_get_property('handle-size', value)
            return value.get_int()
        except:
            return 0

    def wrapcloseterm(self, widget):
        """A child terminal has closed, so this container must die"""
        dbg('Paned::wrapcloseterm: Called on %s' % widget)

        if self.closeterm(widget):
            # At this point we only have one child, which is the surviving term
            sibling = self.children[0]
            first_term_sibling = sibling
            cur_tabnum = None

            focus_sibling = True
            if self.get_toplevel().is_child_notebook():
                notebook = self.get_toplevel().get_children()[0]
                cur_tabnum = notebook.get_current_page()
                tabnum = notebook.page_num_descendant(self)
                nth_page = notebook.get_nth_page(tabnum)
                exiting_term_was_last_active = (
                    notebook.last_active_term[nth_page] == widget.uuid)
                if exiting_term_was_last_active:
                    first_term_sibling = enumerate_descendants(self)[1][0]
                    notebook.set_last_active_term(first_term_sibling.uuid)
                    notebook.clean_last_active_term()
                    self.get_toplevel().last_active_term = None
                if cur_tabnum != tabnum:
                    focus_sibling = False
            elif self.get_toplevel().last_active_term != widget.uuid:
                focus_sibling = False

            self.remove(sibling)

            metadata = None
            parent = self.get_parent()
            metadata = parent.get_child_metadata(self)
            dbg('metadata obtained for %s: %s' % (self, metadata))
            parent.remove(self)
            self.cnxids.remove_all()
            parent.add(sibling, metadata)
            if cur_tabnum:
                notebook.set_current_page(cur_tabnum)
            if focus_sibling:
                first_term_sibling.grab_focus()
            elif not sibling.get_toplevel().is_child_notebook():
                Terminator().find_terminal_by_uuid(
                    sibling.get_toplevel().last_active_term.urn).grab_focus()
        else:
            dbg("Paned::wrapcloseterm: self.closeterm failed")

    def hoover(self):
        """Check that we still have a reason to exist"""
        if len(self.children) == 1:
            dbg('Paned::hoover: We only have one child, die')
            parent = self.get_parent()
            child = self.children[0]
            self.remove(child)
            parent.replace(self, child)
            del self

    def resizeterm(self, widget, keyname):
        """Handle a keyboard event requesting a terminal resize"""
        if keyname in ['up', 'down'] and isinstance(self, Gtk.VPaned):
            # This is a key we can handle
            position = self.get_position()

            if self.maker.isinstance(widget, 'Terminal'):
                fontheight = widget.vte.get_char_height()
            else:
                fontheight = 10

            if keyname == 'up':
                self.set_position(position - fontheight)
            else:
                self.set_position(position + fontheight)
        elif keyname in ['left', 'right'] and isinstance(self, Gtk.HPaned):
            # This is a key we can handle
            position = self.get_position()

            if self.maker.isinstance(widget, 'Terminal'):
                fontwidth = widget.vte.get_char_width()
            else:
                fontwidth = 10

            if keyname == 'left':
                self.set_position(position - fontwidth)
            else:
                self.set_position(position + fontwidth)
        else:
            # This is not a key we can handle
            self.emit('resize-term', keyname)

    def create_layout(self, layout):
        """Apply layout configuration"""
        if 'children' not in layout:
            err('layout specifies no children: %s' % layout)
            return

        children = layout['children']
        if len(children) != 2:
            # Paned widgets can only have two children
            err('incorrect number of children for Paned: %s' % layout)
            return

        keys = []

        # FIXME: This seems kinda ugly. All we want here is to know the order
        # of children based on child['order']
        try:
            child_order_map = {}
            for child in children:
                key = children[child]['order']
                child_order_map[key] = child
            map_keys = child_order_map.keys()
            map_keys.sort()
            for map_key in map_keys:
                keys.append(child_order_map[map_key])
        except KeyError:
            # We've failed to figure out the order. At least give the terminals
            # in the wrong order
            keys = children.keys()

        num = 0
        for child_key in keys:
            child = children[child_key]
            dbg('Making a child of type: %s' % child['type'])
            if child['type'] == 'Terminal':
                pass
            elif child['type'] == 'VPaned':
                if num == 0:
                    terminal = self.get_child1()
                else:
                    terminal = self.get_child2()
                self.split_axis(terminal, True)
            elif child['type'] == 'HPaned':
                if num == 0:
                    terminal = self.get_child1()
                else:
                    terminal = self.get_child2()
                self.split_axis(terminal, False)
            else:
                err('unknown child type: %s' % child['type'])
            num = num + 1

        self.get_child1().create_layout(children[keys[0]])
        self.get_child2().create_layout(children[keys[1]])

        # Set the position with ratio. For some reason more reliable than by pos.
        if 'ratio' in layout:
            self.ratio = float(layout['ratio'])
            self.set_position_by_ratio()

    def grab_focus(self):
        """We don't want focus, we want a Terminal to have it"""
        self.get_child1().grab_focus()

    def rotate_recursive(self, parent, w, h, clockwise):
        """
        Recursively rotate "self" into a new paned that'll have "w" x "h" size. Attach it to "parent".

        As discussed in LP#1522542, we should build up the new layout (including the separator positions)
        in a single step. We can't rely on Gtk+ computing the allocation sizes yet, so we have to do the
        computation ourselves and carry the resulting paned sizes all the way down the widget tree.
        """
        maker = Factory()
        handle_size = self.get_handlesize()

        if isinstance(self, HPaned):
            container = VPaned()
            reverse = not clockwise
        else:
            container = HPaned()
            reverse = clockwise

        container.ratio = self.ratio
        children = self.get_children()
        if reverse:
            container.ratio = 1 - container.ratio
            children.reverse()

        if isinstance(self, HPaned):
            w1 = w2 = w
            h1 = pos = self.position_by_ratio(h, handle_size, container.ratio)
            h2 = max(h - h1 - handle_size, 0)
        else:
            h1 = h2 = h
            w1 = pos = self.position_by_ratio(w, handle_size, container.ratio)
            w2 = max(w - w1 - handle_size, 0)

        container.set_pos(pos)
        parent.add(container)

        if maker.isinstance(children[0], 'Terminal'):
            children[0].get_parent().remove(children[0])
            container.add(children[0])
        else:
            children[0].rotate_recursive(container, w1, h1, clockwise)

        if maker.isinstance(children[1], 'Terminal'):
            children[1].get_parent().remove(children[1])
            container.add(children[1])
        else:
            children[1].rotate_recursive(container, w2, h2, clockwise)

    def new_size(self, widget, allocation):
        if self.get_toplevel().set_pos_by_ratio:
            self.set_position_by_ratio()
        else:
            self.set_position(self.get_position())

    def position_by_ratio(self, total_size, handle_size, ratio):
        non_separator_size = max(total_size - handle_size, 0)
        ratio = min(max(ratio, 0.0), 1.0)
        return int(round(non_separator_size * ratio))

    def ratio_by_position(self, total_size, handle_size, position):
        non_separator_size = max(total_size - handle_size, 0)
        if non_separator_size == 0:
            return None
        position = min(max(position, 0), non_separator_size)
        return float(position) / float(non_separator_size)

    def set_position_by_ratio(self):
        # Fix for strange race condition where every so often get_length returns 1. (LP:1655027)
        while self.terminator.doing_layout and self.get_length() == 1:
            while Gtk.events_pending():
                Gtk.main_iteration()

        self.set_pos(
            self.position_by_ratio(self.get_length(), self.get_handlesize(),
                                   self.ratio))

    def set_position(self, pos):
        newratio = self.ratio_by_position(self.get_length(),
                                          self.get_handlesize(), pos)
        if newratio is not None:
            self.ratio = newratio
        self.set_pos(pos)
Пример #7
0
    def new_connect_tab(self, command, passwd):

        log_debug("new_connect_tab")
        top_window = self.terminal.get_toplevel()
        if top_window.get_property('term_zoomed') == True:
            err("You can't create a tab while a terminal is maximised/zoomed")
            return

        profile = self.terminal.get_profile()
        log_debug(profile)

        maker = Factory()
        if not top_window.is_child_notebook():
            dbg('Making a new Notebook')
            notebook = maker.make('Notebook', window=top_window)
        top_window.show()
        top_window.present()

        """Add a new tab, optionally supplying a child widget"""
        dbg('making a new tab')
        notebook = top_window.get_child()
        log_debug(notebook)

        widget = maker.make('Terminal')
        if profile and notebook.config['always_split_with_profile']:
            widget.force_set_profile(None, profile)

        args = []
        shell = None

        if widget.terminator.doing_layout == True:
            dbg('still laying out, refusing to spawn a child')
            return

        widget.vte.grab_focus()
        #设置为家目录
        widget.set_cwd(os.environ['HOME'])

        shell = shell_lookup()
        args.insert(0, shell)
        # 不加 || export -n SSHPASS; shell,如果连接失败将立即退出,看不到任何信息
        # 加了之后ssh登录失败将回退到 shell,可以看到失败信息,
        # ssh登录成功则执行 exit退出ssh后将关闭窗口
        args += ['-c', command + " || (export -n SSHPASS; " + shell + ")"]
        # 加; export -n SSHPASS; shell 后执行exit退出ssh后将回到shell  
        # args += ['-c', command + "; export -n SSHPASS; " + shell]    

        if shell is None:
            widget.vte.feed(_('Unable to find a shell'))
            return(-1)

        try:
            os.putenv('WINDOWID', '%s' % widget.vte.get_parent_window().xid)
        except AttributeError:
            pass

        envv = []
        envv.append('SSHPASS=%s' % passwd)
        envv.append('TERM=%s' % widget.config['term'])
        envv.append('COLORTERM=%s' % widget.config['colorterm'])
        envv.append('PWD=%s' % widget.cwd)
        envv.append('TERMINATOR_UUID=%s' % widget.uuid.urn)
        if widget.terminator.dbus_name:
            envv.append('TERMINATOR_DBUS_NAME=%s' % widget.terminator.dbus_name)
        if widget.terminator.dbus_path:
            envv.append('TERMINATOR_DBUS_PATH=%s' % widget.terminator.dbus_path)

        log_debug('Forking shell: "%s" with args: %s' % (shell, args))
        args.insert(0, shell)
        log_debug(args)
        result,  widget.pid = widget.vte.spawn_sync(Vte.PtyFlags.DEFAULT,
                                       widget.cwd,
                                       args,
                                       envv,
                                       GLib.SpawnFlags.FILE_AND_ARGV_ZERO | GLib.SpawnFlags.DO_NOT_REAP_CHILD ,
                                       None,
                                       None,
                                       None)
        widget.command = shell
        widget.titlebar.update()

        #将新创建的terminal创建一个新tab
        notebook.newtab(debugtab=False, widget=widget)
        if widget.pid == -1:
            widget.vte.feed(_('Unable to start shell:') + shell)
            return(-1)