/b-gtk/fix-viz

# Copyright (C) 2006 by Szilveszter Farkas (Phanatic) <szilveszter.farkas@gmail.com>

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 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 General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

try:

    import pygtk

    pygtk.require("2.0")

except:

    pass

import gtk

import gobject

import pango

import os.path

import re

from bzrlib import errors, osutils

from bzrlib.trace import mutter

from bzrlib.util import bencode

from dialog import error_dialog, question_dialog

from errors import show_bzr_error

try:

    import dbus

    import dbus.glib

    have_dbus = True

except ImportError:

    have_dbus = False

def pending_revisions(wt):

    """Return a list of pending merges or None if there are none of them.

    Arguably this should be a core function, and

    ``bzrlib.status.show_pending_merges`` should be built on top of it.

    :return: [(rev, [children])]

    """

    parents = wt.get_parent_ids()

    if len(parents) < 2:

        return None

    # The basic pending merge algorithm uses the same algorithm as

    # bzrlib.status.show_pending_merges

    pending = parents[1:]

    branch = wt.branch

    last_revision = parents[0]

    if last_revision is not None:

        try:

            ignore = set(branch.repository.get_ancestry(last_revision,

                                                        topo_sorted=False))

        except errors.NoSuchRevision:

            # the last revision is a ghost : assume everything is new

            # except for it

            ignore = set([None, last_revision])

    else:

        ignore = set([None])

    pm = []

    for merge in pending:

        ignore.add(merge)

        try:

            rev = branch.repository.get_revision(merge)

            children = []

            pm.append((rev, children))

            # This does need to be topo sorted, so we search backwards

            inner_merges = branch.repository.get_ancestry(merge)

            assert inner_merges[0] is None

            inner_merges.pop(0)

            for mmerge in reversed(inner_merges):

                if mmerge in ignore:

                    continue

                rev = branch.repository.get_revision(mmerge)

                children.append(rev)

                ignore.add(mmerge)

        except errors.NoSuchRevision:

            print "DEBUG: NoSuchRevision:", merge

    return pm

class CommitDialog(gtk.Dialog):

    """Implementation of Commit."""

    def __init__(self, wt, selected=None, parent=None):

        gtk.Dialog.__init__(self, title="Commit - Olive",

                                  parent=parent,

                                  flags=0,

                                  buttons=(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL))

        self._question_dialog = question_dialog

        self._wt = wt

        # TODO: Do something with this value, it is used by Olive

        #       It used to set all changes but this one to False

        self._selected = selected

        self._enable_per_file_commits = True

        self.committed_revision_id = None # Nothing has been committed yet

        self.setup_params()

        self.construct()

        self.fill_in_data()

    def setup_params(self):

        """Setup the member variables for state."""

        self._basis_tree = self._wt.basis_tree()

        self._delta = None

        self._pending = pending_revisions(self._wt)

        self._is_checkout = (self._wt.branch.get_bound_location() is not None)

    def fill_in_data(self):

        # Now that we are built, handle changes to the view based on the state

        self._fill_in_pending()

        self._fill_in_diff()

        self._fill_in_files()

        self._fill_in_checkout()

        self._fill_in_per_file_info()

    def _fill_in_pending(self):

        if not self._pending:

            self._pending_box.hide()

            return

        # TODO: We'd really prefer this to be a nested list

        for rev, children in self._pending:

            rev_info = self._rev_to_pending_info(rev)

            self._pending_store.append([

                rev_info['revision_id'],

                rev_info['date'],

                rev_info['committer'],

                rev_info['summary'],

                ])

            for child in children:

                rev_info = self._rev_to_pending_info(child)

                self._pending_store.append([

                    rev_info['revision_id'],

                    rev_info['date'],

                    rev_info['committer'],

                    rev_info['summary'],

                    ])

        self._pending_box.show()

    def _fill_in_files(self):

        # We should really use add a progress bar of some kind.

        # While we fill in the view, hide the store

        store = self._files_store

        self._treeview_files.set_model(None)

        added = _('added')

        removed = _('removed')

        renamed = _('renamed')

        renamed_and_modified = _('renamed and modified')

        modified = _('modified')

        kind_changed = _('kind changed')

        # The store holds:

        # [file_id, real path, checkbox, display path, changes type, message]

        # _iter_changes returns:

        # (file_id, (path_in_source, path_in_target),

        #  changed_content, versioned, parent, name, kind,

        #  executable)

        # The first entry is always the 'whole tree'

        store.append([None, None, True, 'All Files', '', ''])

        # should we pass specific_files?

        self._wt.lock_read()

        self._basis_tree.lock_read()

        try:

            from diff import _iter_changes_to_status

            for (file_id, real_path, change_type, display_path

                ) in _iter_changes_to_status(self._basis_tree, self._wt):

                store.append([file_id, real_path.encode('UTF-8'),

                              True, display_path.encode('UTF-8'),

                              change_type, ''])

        finally:

            self._basis_tree.unlock()

            self._wt.unlock()

        self._treeview_files.set_model(store)

        self._last_selected_file = None

        # This sets the cursor, which causes the expander to close, which

        # causes the _file_message_text_view to never get realized. So we have

        # to give it a little kick, or it warns when we try to grab the focus

        self._treeview_files.set_cursor(0)

        def _realize_file_message_tree_view(*args):

            self._file_message_text_view.realize()

        self.connect_after('realize', _realize_file_message_tree_view)

    def _fill_in_diff(self):

        self._diff_view.set_trees(self._wt, self._basis_tree)

    def _fill_in_checkout(self):

        if not self._is_checkout:

            self._check_local.hide()

            return

        if have_dbus:

            bus = dbus.SystemBus()

            proxy_obj = bus.get_object('org.freedesktop.NetworkManager',

                                       '/org/freedesktop/NetworkManager')

            dbus_iface = dbus.Interface(proxy_obj,

                                        'org.freedesktop.NetworkManager')

            try:

                # 3 is the enum value for STATE_CONNECTED

                self._check_local.set_active(dbus_iface.state() != 3)

            except dbus.DBusException, e:

                # Silently drop errors. While DBus may be

                # available, NetworkManager doesn't necessarily have to be

                mutter("unable to get networkmanager state: %r" % e)

        self._check_local.show()

    def _fill_in_per_file_info(self):

        config = self._wt.branch.get_config()

        enable_per_file_commits = config.get_user_option('per_file_commits')

        if (enable_per_file_commits is None

            or enable_per_file_commits.lower()

                not in ('y', 'yes', 'on', 'enable', '1', 't', 'true')):

            self._enable_per_file_commits = False

        else:

            self._enable_per_file_commits = True

        if not self._enable_per_file_commits:

            self._file_message_expander.hide()

    def _compute_delta(self):

        self._delta = self._wt.changes_from(self._basis_tree)

    def construct(self):

        """Build up the dialog widgets."""

        # The primary pane which splits it into left and right (adjustable)

        # sections.

        self._hpane = gtk.HPaned()

        self._construct_left_pane()

        self._construct_right_pane()

        self._construct_action_pane()

        self.vbox.pack_start(self._hpane)

        self._hpane.show()

        self.set_focus(self._global_message_text_view)

        self._construct_accelerators()

        self._set_sizes()

    def _set_sizes(self):

        # This seems like a reasonable default, we might like it to

        # be a bit wider, so that by default we can fit an 80-line diff in the

        # diff window.

        # Alternatively, we should be saving the last position/size rather than

        # setting it to a fixed value every time we start up.

        screen = self.get_screen()

        monitor = 0 # We would like it to be the monitor we are going to

                    # display on, but I don't know how to figure that out

                    # Only really useful for freaks like me that run dual

                    # monitor, with different sizes on the monitors

        monitor_rect = screen.get_monitor_geometry(monitor)

        width = int(monitor_rect.width * 0.66)

        height = int(monitor_rect.height * 0.66)

        self.set_default_size(width, height)

        self._hpane.set_position(300)

    def _construct_accelerators(self):

        group = gtk.AccelGroup()

        group.connect_group(gtk.gdk.keyval_from_name('N'),

                            gtk.gdk.CONTROL_MASK, 0, self._on_accel_next)

        self.add_accel_group(group)

    def _construct_left_pane(self):

        self._left_pane_box = gtk.VBox(homogeneous=False, spacing=5)

        self._construct_file_list()

        self._construct_pending_list()

        self._check_local = gtk.CheckButton(_("_Only commit locally"),

                                            use_underline=True)

        self._left_pane_box.pack_end(self._check_local, False, False)

        self._check_local.set_active(False)

        self._hpane.pack1(self._left_pane_box, resize=False, shrink=False)

        self._left_pane_box.show()

    def _construct_right_pane(self):

        # TODO: I really want to make it so the diff view gets more space than

        # the global commit message, and the per-file commit message gets even

        # less. When I did it with wxGlade, I set it to 4 for diff, 2 for

        # commit, and 1 for file commit, and it looked good. But I don't seem

        # to have a way to do that with the gtk boxes... :( (Which is extra

        # weird since wx uses gtk on Linux...)

        self._right_pane_table = gtk.Table(rows=10, columns=1, homogeneous=False)

        self._right_pane_table.set_row_spacings(5)

        self._right_pane_table.set_col_spacings(5)

        self._right_pane_table_row = 0

        self._construct_diff_view()

        self._construct_file_message()

        self._construct_global_message()

        self._right_pane_table.show()

        self._hpane.pack2(self._right_pane_table, resize=True, shrink=True)

    def _construct_action_pane(self):

        self._button_commit = gtk.Button(_("Comm_it"), use_underline=True)

        self._button_commit.connect('clicked', self._on_commit_clicked)

        self._button_commit.set_flags(gtk.CAN_DEFAULT)

        self._button_commit.show()

        self.action_area.pack_end(self._button_commit)

        self._button_commit.grab_default()

    def _add_to_right_table(self, widget, weight, expanding=False):

        """Add another widget to the table

        :param widget: The object to add

        :param weight: How many rows does this widget get to request

        :param expanding: Should expand|fill|shrink be set?

        """

        end_row = self._right_pane_table_row + weight

        options = 0

        expand_opts = gtk.EXPAND | gtk.FILL | gtk.SHRINK

        if expanding:

            options = expand_opts

        self._right_pane_table.attach(widget, 0, 1,

                                      self._right_pane_table_row, end_row,

                                      xoptions=expand_opts, yoptions=options)

        self._right_pane_table_row = end_row

    def _construct_file_list(self):

        self._files_box = gtk.VBox(homogeneous=False, spacing=0)

        file_label = gtk.Label(_('Files'))

        file_label.show()

        self._files_box.pack_start(file_label, expand=False)

        scroller = gtk.ScrolledWindow()

        scroller.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)

        self._treeview_files = gtk.TreeView()

        self._treeview_files.show()

        scroller.add(self._treeview_files)

        scroller.set_shadow_type(gtk.SHADOW_IN)

        scroller.show()

        self._files_box.pack_start(scroller,

                                   expand=True, fill=True)

        self._files_box.show()

        self._left_pane_box.pack_start(self._files_box)

        # Keep note that all strings stored in a ListStore must be UTF-8

        # strings. GTK does not support directly setting and restoring Unicode

        # objects.

        liststore = gtk.ListStore(

            gobject.TYPE_STRING,  # [0] file_id

            gobject.TYPE_STRING,  # [1] real path

            gobject.TYPE_BOOLEAN, # [2] checkbox

            gobject.TYPE_STRING,  # [3] display path

            gobject.TYPE_STRING,  # [4] changes type

            gobject.TYPE_STRING,  # [5] commit message

            )

        self._files_store = liststore

        self._treeview_files.set_model(liststore)

        crt = gtk.CellRendererToggle()

        crt.set_active(not bool(self._pending))

        crt.connect("toggled", self._toggle_commit, self._files_store)

        if self._pending:

            name = _('Commit*')

        else:

            name = _('Commit')

        self._treeview_files.append_column(gtk.TreeViewColumn(name,

                                           crt, active=2))

        self._treeview_files.append_column(gtk.TreeViewColumn(_('Path'),

                                           gtk.CellRendererText(), text=3))

        self._treeview_files.append_column(gtk.TreeViewColumn(_('Type'),

                                           gtk.CellRendererText(), text=4))

        self._treeview_files.connect('cursor-changed',

                                     self._on_treeview_files_cursor_changed)

    def _toggle_commit(self, cell, path, model):

        if model[path][0] is None: # No file_id means 'All Files'

            new_val = not model[path][2]

            for node in model:

                node[2] = new_val

        else:

            model[path][2] = not model[path][2]

    def _construct_pending_list(self):

        # Pending information defaults to hidden, we put it all in 1 box, so

        # that we can show/hide all of them at once

        self._pending_box = gtk.VBox()

        self._pending_box.hide()

        pending_message = gtk.Label()

        pending_message.set_markup(

            _('<i>* Cannot select specific files when merging</i>'))

        self._pending_box.pack_start(pending_message, expand=False, padding=5)

        pending_message.show()

        pending_label = gtk.Label(_('Pending Revisions'))

        self._pending_box.pack_start(pending_label, expand=False, padding=0)

        pending_label.show()

        scroller = gtk.ScrolledWindow()

        scroller.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)

        self._treeview_pending = gtk.TreeView()

        scroller.add(self._treeview_pending)

        scroller.set_shadow_type(gtk.SHADOW_IN)

        scroller.show()

        self._pending_box.pack_start(scroller,

                                     expand=True, fill=True, padding=5)

        self._treeview_pending.show()

        self._left_pane_box.pack_start(self._pending_box)

        liststore = gtk.ListStore(gobject.TYPE_STRING, # revision_id

                                  gobject.TYPE_STRING, # date

                                  gobject.TYPE_STRING, # committer

                                  gobject.TYPE_STRING, # summary

                                 )

        self._pending_store = liststore

        self._treeview_pending.set_model(liststore)

        self._treeview_pending.append_column(gtk.TreeViewColumn(_('Date'),

                                             gtk.CellRendererText(), text=1))

        self._treeview_pending.append_column(gtk.TreeViewColumn(_('Committer'),

                                             gtk.CellRendererText(), text=2))

        self._treeview_pending.append_column(gtk.TreeViewColumn(_('Summary'),

                                             gtk.CellRendererText(), text=3))

    def _construct_diff_view(self):

        from diff import DiffView

        self._diff_label = gtk.Label(_('Diff for whole tree'))

        self._diff_label.set_alignment(0, 0)

        self._right_pane_table.set_row_spacing(self._right_pane_table_row, 0)

        self._add_to_right_table(self._diff_label, 1, False)

        self._diff_label.show()

        self._diff_view = DiffView()

        self._add_to_right_table(self._diff_view, 4, True)

        self._diff_view.show()

    def _construct_file_message(self):

        scroller = gtk.ScrolledWindow()

        scroller.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)

        self._file_message_text_view = gtk.TextView()

        scroller.add(self._file_message_text_view)

        scroller.set_shadow_type(gtk.SHADOW_IN)

        scroller.show()

        self._file_message_text_view.modify_font(pango.FontDescription("Monospace"))

        self._file_message_text_view.set_wrap_mode(gtk.WRAP_WORD)

        self._file_message_text_view.set_accepts_tab(False)

        self._file_message_text_view.show()

        self._file_message_expander = gtk.Expander(_('File commit message'))

        self._file_message_expander.set_expanded(True)

        self._file_message_expander.add(scroller)

        self._add_to_right_table(self._file_message_expander, 1, False)

        self._file_message_expander.show()

    def _construct_global_message(self):

        self._global_message_label = gtk.Label(_('Global Commit Message'))

        self._global_message_label.set_alignment(0, 0)

        self._right_pane_table.set_row_spacing(self._right_pane_table_row, 0)

        self._add_to_right_table(self._global_message_label, 1, False)

        # Can we remove the spacing between the label and the box?

        self._global_message_label.show()

        scroller = gtk.ScrolledWindow()

        scroller.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)

        self._global_message_text_view = gtk.TextView()

        self._global_message_text_view.modify_font(pango.FontDescription("Monospace"))

        scroller.add(self._global_message_text_view)

        scroller.set_shadow_type(gtk.SHADOW_IN)

        scroller.show()

        self._add_to_right_table(scroller, 2, True)

        self._file_message_text_view.set_wrap_mode(gtk.WRAP_WORD)

        self._file_message_text_view.set_accepts_tab(False)

        self._global_message_text_view.show()

    def _on_treeview_files_cursor_changed(self, treeview):

        treeselection = treeview.get_selection()

        (model, selection) = treeselection.get_selected()

        if selection is not None:

            path, display_path = model.get(selection, 1, 3)

            self._diff_label.set_text(_('Diff for ') + display_path)

            if path is None:

                self._diff_view.show_diff(None)

            else:

                self._diff_view.show_diff([path.decode('UTF-8')])

            self._update_per_file_info(selection)

    def _on_accel_next(self, accel_group, window, keyval, modifier):

        # We don't really care about any of the parameters, because we know

        # where this message came from

        tree_selection = self._treeview_files.get_selection()

        (model, selection) = tree_selection.get_selected()

        if selection is None:

            next = None

        else:

            next = model.iter_next(selection)

        if next is None:

            # We have either made it to the end of the list, or nothing was

            # selected. Either way, select All Files, and jump to the global

            # commit message.

            self._treeview_files.set_cursor((0,))

            self._global_message_text_view.grab_focus()

        else:

            # Set the cursor to this entry, and jump to the per-file commit

            # message

            self._treeview_files.set_cursor(model.get_path(next))

            self._file_message_text_view.grab_focus()

    def _save_current_file_message(self):

        if self._last_selected_file is None:

            return # Nothing to save

        text_buffer = self._file_message_text_view.get_buffer()

        cur_text = text_buffer.get_text(text_buffer.get_start_iter(),

                                        text_buffer.get_end_iter())

        last_selected = self._files_store.get_iter(self._last_selected_file)

        self._files_store.set_value(last_selected, 5, cur_text)

    def _update_per_file_info(self, selection):

        # The node is changing, so cache the current message

        if not self._enable_per_file_commits:

            return

        self._save_current_file_message()

        text_buffer = self._file_message_text_view.get_buffer()

        file_id, display_path, message = self._files_store.get(selection, 0, 3, 5)

        if file_id is None: # Whole tree

            self._file_message_expander.set_label(_('File commit message'))

            self._file_message_expander.set_expanded(False)

            self._file_message_expander.set_sensitive(False)

            text_buffer.set_text('')

            self._last_selected_file = None

        else:

            self._file_message_expander.set_label(_('Commit message for ')

                                                  + display_path)

            self._file_message_expander.set_expanded(True)

            self._file_message_expander.set_sensitive(True)

            text_buffer.set_text(message)

            self._last_selected_file = self._files_store.get_path(selection)

    def _get_specific_files(self):

        """Return the list of selected paths, and file info.

        :return: ([unicode paths], [{utf-8 file info}]

        """

        self._save_current_file_message()

        files = []

        records = iter(self._files_store)

        rec = records.next() # Skip the All Files record

        assert rec[0] is None, "Are we skipping the wrong record?"

        file_info = []

        for record in records:

            if record[2]:           # [2] checkbox

                file_id = record[0] # [0] file_id

                path = record[1]    # [1] real path

                file_message = record[5] # [5] commit message

                files.append(path.decode('UTF-8'))

                if self._enable_per_file_commits and file_message:

                    # All of this needs to be utf-8 information

                    file_info.append({'path':path, 'file_id':file_id,

                                     'message':file_message})

        file_info.sort(key=lambda x:(x['path'], x['file_id']))

        if self._enable_per_file_commits:

            return files, file_info

        else:

            return files, []

    @show_bzr_error

    def _on_commit_clicked(self, button):

        """ Commit button clicked handler. """

        self._do_commit()

    def _do_commit(self):

        message = self._get_global_commit_message()

        if message == '':

            response = self._question_dialog(

                            _('Commit with an empty message?'),

                            _('You can describe your commit intent in the message.'))

            if response == gtk.RESPONSE_NO:

                # Kindly give focus to message area

                self._global_message_text_view.grab_focus()

                return

        specific_files, file_info = self._get_specific_files()

        if self._pending:

            specific_files = None

        local = self._check_local.get_active()

        # All we care about is if there is a single unknown, so if this loop is

        # entered, then there are unknown files.

        # TODO: jam 20071002 It seems like this should cancel the dialog

        #       entirely, since there isn't a way for them to add the unknown

        #       files at this point.

        for path in self._wt.unknowns():

            response = self._question_dialog(

                _("Commit with unknowns?"),

                _("Unknown files exist in the working tree. Commit anyway?"))

            if response == gtk.RESPONSE_NO:

                return

            break

        rev_id = None

        revprops = {}

        if file_info:

            revprops['file-info'] = bencode.bencode(file_info).decode('UTF-8')

        try:

            rev_id = self._wt.commit(message,

                       allow_pointless=False,

                       strict=False,

                       local=local,

                       specific_files=specific_files,

                       revprops=revprops)

        except errors.PointlessCommit: