Source

thg-keyboard-friendly / hggtk / changeset.py

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#
# changeset.py - Changeset dialog for TortoiseHg
#
# Copyright 2008 Steve Borho <steve@borho.org>
#

import os
import gtk
import gobject
import pango
import Queue

from mercurial import cmdutil, context, util, ui, hg, patch, mdiff

from thgutil.i18n import _
from thgutil.hglib import *
from thgutil import shlib

from hggtk import gdialog, gtklib, hgcmd

class ChangeSet(gdialog.GDialog):
    'GTK+ based dialog for displaying repository logs'
    def __init__(self, ui, repo, cwd, pats, opts, stbar=None):
        gdialog.GDialog.__init__(self, ui, repo, cwd, pats, opts)
        self.stbar = stbar
        self.glog_parent = None

    def get_title(self):
        title = toutf(os.path.basename(self.repo.root)) + ' changeset '
        rev = self.opts['rev']
        if isinstance(rev, str):
            title += rev
        else:
            title += rev[0]
        return title

    def get_icon(self):
        return 'menushowchanged.ico'

    def get_tbbuttons(self):
        self.parent_toggle = gtk.ToggleToolButton(gtk.STOCK_UNDO)
        self.parent_toggle.set_use_underline(True)
        self.parent_toggle.set_label(_('_Other parent'))
        self.parent_toggle.set_tooltip(self.tooltips, _('diff other parent'))
        self.parent_toggle.set_sensitive(False)
        self.parent_toggle.set_active(False)
        self.parent_toggle.connect('toggled', self.parent_toggled)
        return [self.parent_toggle]

    def parent_toggled(self, button):
        self.load_details(self.currev)

    def prepare_display(self):
        self.currow = None
        self.graphview = None
        self.glog_parent = None
        node0, node1 = cmdutil.revpair(self.repo, self.opts.get('rev'))
        self.load_details(self.repo.changelog.rev(node0))

    def save_settings(self):
        settings = gdialog.GDialog.save_settings(self)
        settings['changeset'] = self._hpaned.get_position()
        return settings

    def load_settings(self, settings):
        gdialog.GDialog.load_settings(self, settings)
        if settings and 'changeset' in settings:
            self._setting_hpos = settings['changeset']
        else:
            self._setting_hpos = -1

    def load_details(self, rev):
        'Load selected changeset details into buffer and filelist'
        self.currev = rev
        ctx = self.repo[rev]
        if not ctx:
            return

        parents = ctx.parents()
        title = self.get_title()
        if len(parents) == 2:
            self.parent_toggle.set_sensitive(True)
            if self.parent_toggle.get_active():
                title += ':' + str(parents[1].rev())
            else:
                title += ':' + str(parents[0].rev())
        else:
            self.parent_toggle.set_sensitive(False)
            if self.parent_toggle.get_active():
                # Parent button must be pushed out, but this
                # will cause load_details to be called again
                # so we exit out to prevent recursion.
                self.parent_toggle.set_active(False)
                return

        if self.clipboard:
            self.clipboard.set_text(str(ctx))

        self.set_title(title)
        if self.parent_toggle.get_active():
            parent = parents[1].node()
        elif parents:
            parent = parents[0].node()
        else:
            parent = self.repo[-1]

        self._filelist.clear()
        self._filelist.append(('*', _('[All Files]'), ''))
        modified, added, removed = self.repo.status(parent, ctx.node())[:3]
        for f in modified:
            self._filelist.append(('M', toutf(f), f))
        for f in added:
            self._filelist.append(('A', toutf(f), f))
        for f in removed:
            self._filelist.append(('R', toutf(f), f))
        self.curnodes = (parent, ctx.node())
        if len(self._filelist) > 1:
            self._filesel.select_path((1,))
        else:
            self._filesel.select_path((0,))

    def filelist_rowchanged(self, sel):
        model, path = sel.get_selected()
        if not path:
            return
        status, file_utf8, self.curfile = model[path]
        self.generate_change_header()
        if self.curfile:
            self.append_diff(self.curfile)
        else:
            for _, _, f in model:
                self.append_diff(f)

    def generate_change_header(self):
        buf, rev = self._buffer, self.currev

        def title_line(title, text, tag):
            pad = ' ' * (12 - len(title))
            utext = toutf(title + pad + text)
            buf.insert_with_tags_by_name(eob, utext, tag)
            buf.insert(eob, "\n")

        buf.set_text('')
        ctx = self.repo[rev]

        eob = buf.get_end_iter()
        date = displaytime(ctx.date())
        change = str(rev) + ' : ' + str(ctx)
        tags = ' '.join(ctx.tags())

        title_line(_('changeset:'), change, 'changeset')
        if ctx.branch() != 'default':
            title_line(_('branch:'), ctx.branch(), 'greybg')
        title_line(_('user/date:'), ctx.user() + '\t' + date, 'changeset')
        for pctx in ctx.parents():
            try:
                summary = pctx.description().splitlines()[0]
                summary = toutf(summary)
            except:
                summary = ""
            change = str(pctx.rev()) + ' : ' + str(pctx)
            title = _('parent:')
            title += ' ' * (12 - len(title))
            buf.insert_with_tags_by_name(eob, title, 'parent')
            buf.insert_with_tags_by_name(eob, change, 'link')
            buf.insert_with_tags_by_name(eob, ' ' + summary, 'parent')
            buf.insert(eob, "\n")
        for cctx in ctx.children():
            try:
                summary = cctx.description().splitlines()[0]
                summary = toutf(summary)
            except:
                summary = ""
            change = str(cctx.rev()) + ' : ' + str(cctx)
            title = _('child:')
            title += ' ' * (12 - len(title))
            buf.insert_with_tags_by_name(eob, title, 'parent')
            buf.insert_with_tags_by_name(eob, change, 'link')
            buf.insert_with_tags_by_name(eob, ' ' + summary, 'parent')
            buf.insert(eob, "\n")
        if tags: title_line(_('tags:'), tags, 'tag')

        log = toutf(ctx.description())
        buf.insert(eob, '\n' + log + '\n\n')

    def append_diff(self, wfile):
        if not wfile:
            return
        buf, rev = self._buffer, self.currev
        n1, n2 = self.curnodes

        eob = buf.get_end_iter()
        offset = eob.get_offset()

        try:
            fctx = self.repo[rev].filectx(wfile)
        except LookupError:
            fctx = None
        if fctx and fctx.size() > getmaxdiffsize(self.ui):
            lines = ['diff', '', '',
                    _(' %s is larger than the specified max diff size') % wfile]
        else:
            lines = []
            matcher = cmdutil.match(self.repo, [wfile])
            opts = mdiff.diffopts(git=True, nodates=True)
            for s in patch.diff(self.repo, n1, n2, match=matcher, opts=opts):
                    lines.extend(s.splitlines())
        tags, lines = self.prepare_diff(lines, offset, wfile)
        for l in lines:
            buf.insert(eob, l)

        # inserts the tags
        for name, p0, p1 in tags:
            i0 = buf.get_iter_at_offset(p0)
            i1 = buf.get_iter_at_offset(p1)
            buf.apply_tag_by_name(name, i0, i1)

        sob, eob = buf.get_bounds()
        pos = buf.get_iter_at_offset(offset)
        buf.apply_tag_by_name('mono', pos, eob)
        return True

    def prepare_diff(self, difflines, offset, fname):
        'Borrowed from hgview; parses changeset diffs'
        def addtag( name, offset, length ):
            if tags and tags[-1][0] == name and tags[-1][2]==offset:
                tags[-1][2] += length
            else:
                tags.append( [name, offset, offset+length] )

        add, rem = 0, 0
        for l in difflines[3:]:
            if l.startswith('+'):
                add += 1
            elif l.startswith('-'):
                rem += 1
        outlines = []
        tags = []
        txt = toutf('=== (+%d,-%d) %s ===\n' % (add, rem, fname))
        addtag( 'greybg', offset, len(txt) )
        outlines.append(txt)
        offset += len(txt.decode('utf-8'))
        for l1 in difflines[3:]:
            l = toutf(l1)
            if l.startswith('@@'):
                tag = 'blue'
            elif l.startswith('+'):
                tag = 'green'
                l = diffexpand(l)
            elif l.startswith('-'):
                tag = 'red'
                l = diffexpand(l)
            else:
                tag = 'black'
                l = diffexpand(l)
            l = l+"\n"
            length = len(l.decode('utf-8'))
            addtag( tag, offset, length )
            outlines.append( l )
            offset += length
        return tags, outlines

    def link_event(self, tag, widget, event, liter):
        if event.type != gtk.gdk.BUTTON_RELEASE:
            return
        text = self.get_link_text(tag, widget, liter)
        if not text:
            return
        linkrev = long(text.split(':')[0])
        if self.graphview:
            self.graphview.set_revision_id(linkrev)
            self.graphview.scroll_to_revision(linkrev)
        else:
            self.load_details(linkrev)

    def get_link_text(self, tag, widget, liter):
        'handle clicking on a link in a textview'
        text_buffer = widget.get_buffer()
        beg = liter.copy()
        while not beg.begins_tag(tag):
            beg.backward_char()
        end = liter.copy()
        while not end.ends_tag(tag):
            end.forward_char()
        text = text_buffer.get_text(beg, end)
        return text

    def file_context_menu(self):
        def create_menu(label, callback):
            menuitem = gtk.MenuItem(label, True)
            menuitem.connect('activate', callback)
            menuitem.set_border_width(1)
            return menuitem

        menu = gtk.Menu()
        menu.append(create_menu(_('_visual diff'), self.diff_file_rev))
        menu.append(create_menu(_('diff to _local'), self.diff_to_local))
        menu.append(create_menu(_('_view at revision'), self.view_file_rev))
        self.save_menu = create_menu(_('_save at revision'), self.save_file_rev)
        menu.append(self.save_menu)
        menu.append(create_menu(_('_file history'), self.file_history))
        self.ann_menu = create_menu(_('_annotate file'), self.ann_file)
        menu.append(self.ann_menu)
        menu.append(create_menu(_('_revert file contents'), self.revert_file))
        menu.show_all()
        return menu

    def get_body(self):
        self.curfile = ''
        if self.repo.ui.configbool('tortoisehg', 'copyhash'):
            sel = (os.name == 'nt') and 'CLIPBOARD' or 'PRIMARY'
            self.clipboard = gtk.Clipboard(selection=sel)
        else:
            self.clipboard = None
        self.filemenu = self.file_context_menu()

        details_frame = gtk.Frame()
        details_frame.set_shadow_type(gtk.SHADOW_ETCHED_IN)
        scroller = gtk.ScrolledWindow()
        scroller.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
        details_frame.add(scroller)

        details_text = gtk.TextView()
        details_text.set_wrap_mode(gtk.WRAP_NONE)
        details_text.connect('populate-popup', self.add_to_popup)
        details_text.set_editable(False)
        details_text.modify_font(pango.FontDescription(self.fontcomment))
        scroller.add(details_text)

        self._buffer = gtk.TextBuffer()
        self.setup_tags()
        details_text.set_buffer(self._buffer)
        self.textview = details_text

        filelist_tree = gtk.TreeView()
        filesel = filelist_tree.get_selection()
        filesel.connect('changed', self.filelist_rowchanged)
        self._filesel = filesel
        filelist_tree.connect('button-release-event',
                self.file_button_release)
        filelist_tree.connect('popup-menu', self.file_popup_menu)
        filelist_tree.connect('row-activated', self.file_row_act)
        filelist_tree.set_search_equal_func(self.search_filelist)

        accelgroup = gtk.AccelGroup()
        if self.glog_parent:
            self.glog_parent.add_accel_group(accelgroup)
        else:
            self.add_accel_group(accelgroup)
        mod = gtklib.get_thg_modifier()
        key, modifier = gtk.accelerator_parse(mod+'d')
        filelist_tree.add_accelerator('thg-diff', accelgroup, key,
                        modifier, gtk.ACCEL_VISIBLE)
        filelist_tree.connect('thg-diff', self.thgdiff)

        self._filelist = gtk.ListStore(
                gobject.TYPE_STRING,   # MAR status
                gobject.TYPE_STRING,   # filename (utf-8 encoded)
                gobject.TYPE_STRING,   # filename
                )
        filelist_tree.set_model(self._filelist)
        column = gtk.TreeViewColumn(_('Stat'), gtk.CellRendererText(), text=0)
        filelist_tree.append_column(column)
        column = gtk.TreeViewColumn(_('Files'), gtk.CellRendererText(), text=1)
        filelist_tree.append_column(column)

        list_frame = gtk.Frame()
        list_frame.set_shadow_type(gtk.SHADOW_ETCHED_IN)
        scroller = gtk.ScrolledWindow()
        scroller.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
        scroller.add(filelist_tree)
        list_frame.add(scroller)

        self._hpaned = gtk.HPaned()
        self._hpaned.pack1(list_frame, True, True)
        self._hpaned.pack2(details_frame, True, True)
        self._hpaned.set_position(self._setting_hpos)

        if self.stbar:
            # embedded by changelog browser
            return self._hpaned
        else:
            # add status bar for main app
            vbox = gtk.VBox()
            vbox.pack_start(self._hpaned, True, True)
            self.stbar = gtklib.StatusBar()
            self.stbar.show()
            vbox.pack_start(gtk.HSeparator(), False, False)
            vbox.pack_start(self.stbar, False, False)
            return vbox

    def search_filelist(self, model, column, key, iter):
        'case insensitive filename search'
        key = key.lower()
        if key in model.get_value(iter, 1).lower():
            return False
        return True

    def setup_tags(self):
        'Creates the tags to be used inside the TextView'
        def make_texttag( name, **kwargs ):
            'Helper function generating a TextTag'
            tag = gtk.TextTag(name)
            for key, value in kwargs.iteritems():
                key = key.replace("_","-")
                try:
                    tag.set_property( key, value )
                except TypeError:
                    print "Warning the property %s is unsupported in" % key
                    print "this version of pygtk"
            return tag

        tag_table = self._buffer.get_tag_table()

        tag_table.add( make_texttag('changeset', foreground='#000090',
                paragraph_background='#F0F0F0'))
        tag_table.add(make_texttag('date', foreground='#000090',
                paragraph_background='#F0F0F0'))
        tag_table.add(make_texttag('tag', foreground='#000090',
                paragraph_background='#F0F0F0'))
        tag_table.add(make_texttag('files', foreground='#5C5C5C',
                paragraph_background='#F0F0F0'))
        tag_table.add(make_texttag('parent', foreground='#000090',
                paragraph_background='#F0F0F0'))

        tag_table.add( make_texttag( 'mono', family='Monospace' ))
        tag_table.add( make_texttag( 'blue', foreground='blue' ))
        tag_table.add( make_texttag( 'red', foreground='red' ))
        tag_table.add( make_texttag( 'green', foreground='darkgreen' ))
        tag_table.add( make_texttag( 'black', foreground='black' ))
        tag_table.add( make_texttag( 'greybg',
                                     paragraph_background='grey',
                                     weight=pango.WEIGHT_BOLD ))
        tag_table.add( make_texttag( 'yellowbg', background='yellow' ))
        link_tag = make_texttag( 'link', foreground='blue',
                                 underline=pango.UNDERLINE_SINGLE )
        link_tag.connect('event', self.link_event )
        tag_table.add( link_tag )

    def file_button_release(self, widget, event):
        if event.button == 3 and not (event.state & (gtk.gdk.SHIFT_MASK |
            gtk.gdk.CONTROL_MASK)):
            self.file_popup_menu(widget, event.button, event.time)
        return False

    def file_popup_menu(self, treeview, button=0, time=0):
        if not self.curfile:
            return
        self.filemenu.popup(None, None, None, button, time)

        # If the filelog entry this changeset references does not link
        # back to this changeset, it means this changeset did not
        # actually change the contents of this file, and thus the file
        # cannot be annotated at this revision (since this changeset
        # does not appear in the filelog)
        ctx = self.repo[self.currev]
        try:
            fctx = ctx.filectx(self.curfile)
            has_filelog = fctx.filelog().linkrev(fctx.filerev()) == ctx.rev()
        except LookupError:
            has_filelog = False
        self.ann_menu.set_sensitive(has_filelog)
        self.save_menu.set_sensitive(has_filelog)
        return True

    def thgdiff(self, treeview):
        # Do not steal ctrl-d from changelog treeview
        if not treeview.is_focus() and self.glog_parent:
            w = self.glog_parent.get_focus()
            if isinstance(w, gtk.TreeView):
                w.emit('thg-diff')
            return False
        if not self.curfile:
            return False
        self._diff_file('M', self.curfile)

    def file_row_act(self, tree, path, column) :
        'Default action is the first entry in the context menu'
        self.filemenu.get_children()[0].activate()
        return True

    def save_file_rev(self, menuitem):
        wfile = util.localpath(self.curfile)
        wfile, ext = os.path.splitext(os.path.basename(wfile))
        filename = "%s@%d%s" % (wfile, self.currev, ext)
        fd = gtklib.NativeSaveFileDialogWrapper(Title=_("Save file to"),
                                         InitialDir=self.cwd,
                                         FileName=filename)
        result = fd.run()
        if result:
            q = Queue.Queue()
            cpath = util.canonpath(self.repo.root, self.cwd, self.curfile)
            hgcmd_toq(self.repo.root, q, 'cat', '--rev',
                str(self.currev), '--output', result, cpath)

    def diff_to_local(self, menuitem):
        if not self.curfile:
            return
        self.opts['rev'] = [str(self.currev)]
        self._diff_file('M', self.curfile)

    def diff_file_rev(self, menuitem):
        'User selected visual diff file from the file list context menu'
        if not self.curfile:
            return
        self.opts['change'] = str(self.currev)
        self._diff_file('M', self.curfile)
        del self.opts['change']

    def view_file_rev(self, menuitem):
        'User selected view file revision from the file list context menu'
        if not self.curfile:
            return
        rev = self.currev
        parents = [x.rev() for x in self.repo[rev].parents()]
        if len(parents) == 0:
            parent = rev-1
        else:
            parent = parents[0]
        pair = '%u:%u' % (parent, rev)
        self._node1, self._node2 = cmdutil.revpair(self.repo, [pair])
        self._view_file('M', self.curfile, force_left=False)

    def ann_file(self, menuitem):
        'User selected annotate file from the file list context menu'
        from hggtk import datamine
        rev = self.currev
        dialog = datamine.DataMineDialog(self.ui, self.repo, self.cwd, [], {})
        dialog.display()
        dialog.add_annotate_page(self.curfile, str(rev))

    def file_history(self, menuitem):
        'User selected file history from file list context menu'
        if self.glog_parent:
            # If this changeset browser is embedded in glog, send
            # send this event to the main app
            opts = {'pats' : [self.curfile]}
            self.glog_parent.custombutton.set_active(True)
            self.glog_parent.reload_log(**opts)
        else:
            # Else launch our own GLog instance
            from hggtk import history
            dialog = history.GLog(self.ui, self.repo, self.cwd,
                                  [self.repo.root], {})
            dialog.open_with_file(self.curfile)
            dialog.display()

    def revert_file(self, menuitem):
        'User selected file revert from the file list context menu'
        rev = self.currev
        dialog = gdialog.Confirm(_('Confirm revert file to old revision'),
                 [], self, _('Revert %s to contents at revision %d?') %
                 (self.curfile, rev))
        if dialog.run() == gtk.RESPONSE_NO:
            return
        cmdline = ['hg', 'revert', '--verbose', '--rev', str(rev), self.curfile]
        dlg = hgcmd.CmdDialog(cmdline)
        dlg.run()
        dlg.hide()
        shlib.shell_notify([self.repo.wjoin(self.curfile)])

    def add_to_popup(self, textview, menu):
        menu_items = (('----', None),
                      (_('Toggle _Wordwrap'), self.toggle_wordwrap),
                     )
        for label, handler in menu_items:
            if label == '----':
                menuitem = gtk.SeparatorMenuItem()
            else:
                menuitem = gtk.MenuItem(label)
            if handler:
                menuitem.connect('activate', handler)
            menu.append(menuitem)
        menu.show_all()

    def toggle_wordwrap(self, sender):
        if self.textview.get_wrap_mode() != gtk.WRAP_NONE:
            self.textview.set_wrap_mode(gtk.WRAP_NONE)
        else:
            self.textview.set_wrap_mode(gtk.WRAP_WORD)