Source

wxPython / wx / tools / Editra / src / ed_search.py

Full commit
   1
   2
   3
   4
   5
   6
   7
   8
   9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30
  31
  32
  33
  34
  35
  36
  37
  38
  39
  40
  41
  42
  43
  44
  45
  46
  47
  48
  49
  50
  51
  52
  53
  54
  55
  56
  57
  58
  59
  60
  61
  62
  63
  64
  65
  66
  67
  68
  69
  70
  71
  72
  73
  74
  75
  76
  77
  78
  79
  80
  81
  82
  83
  84
  85
  86
  87
  88
  89
  90
  91
  92
  93
  94
  95
  96
  97
  98
  99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153
 154
 155
 156
 157
 158
 159
 160
 161
 162
 163
 164
 165
 166
 167
 168
 169
 170
 171
 172
 173
 174
 175
 176
 177
 178
 179
 180
 181
 182
 183
 184
 185
 186
 187
 188
 189
 190
 191
 192
 193
 194
 195
 196
 197
 198
 199
 200
 201
 202
 203
 204
 205
 206
 207
 208
 209
 210
 211
 212
 213
 214
 215
 216
 217
 218
 219
 220
 221
 222
 223
 224
 225
 226
 227
 228
 229
 230
 231
 232
 233
 234
 235
 236
 237
 238
 239
 240
 241
 242
 243
 244
 245
 246
 247
 248
 249
 250
 251
 252
 253
 254
 255
 256
 257
 258
 259
 260
 261
 262
 263
 264
 265
 266
 267
 268
 269
 270
 271
 272
 273
 274
 275
 276
 277
 278
 279
 280
 281
 282
 283
 284
 285
 286
 287
 288
 289
 290
 291
 292
 293
 294
 295
 296
 297
 298
 299
 300
 301
 302
 303
 304
 305
 306
 307
 308
 309
 310
 311
 312
 313
 314
 315
 316
 317
 318
 319
 320
 321
 322
 323
 324
 325
 326
 327
 328
 329
 330
 331
 332
 333
 334
 335
 336
 337
 338
 339
 340
 341
 342
 343
 344
 345
 346
 347
 348
 349
 350
 351
 352
 353
 354
 355
 356
 357
 358
 359
 360
 361
 362
 363
 364
 365
 366
 367
 368
 369
 370
 371
 372
 373
 374
 375
 376
 377
 378
 379
 380
 381
 382
 383
 384
 385
 386
 387
 388
 389
 390
 391
 392
 393
 394
 395
 396
 397
 398
 399
 400
 401
 402
 403
 404
 405
 406
 407
 408
 409
 410
 411
 412
 413
 414
 415
 416
 417
 418
 419
 420
 421
 422
 423
 424
 425
 426
 427
 428
 429
 430
 431
 432
 433
 434
 435
 436
 437
 438
 439
 440
 441
 442
 443
 444
 445
 446
 447
 448
 449
 450
 451
 452
 453
 454
 455
 456
 457
 458
 459
 460
 461
 462
 463
 464
 465
 466
 467
 468
 469
 470
 471
 472
 473
 474
 475
 476
 477
 478
 479
 480
 481
 482
 483
 484
 485
 486
 487
 488
 489
 490
 491
 492
 493
 494
 495
 496
 497
 498
 499
 500
 501
 502
 503
 504
 505
 506
 507
 508
 509
 510
 511
 512
 513
 514
 515
 516
 517
 518
 519
 520
 521
 522
 523
 524
 525
 526
 527
 528
 529
 530
 531
 532
 533
 534
 535
 536
 537
 538
 539
 540
 541
 542
 543
 544
 545
 546
 547
 548
 549
 550
 551
 552
 553
 554
 555
 556
 557
 558
 559
 560
 561
 562
 563
 564
 565
 566
 567
 568
 569
 570
 571
 572
 573
 574
 575
 576
 577
 578
 579
 580
 581
 582
 583
 584
 585
 586
 587
 588
 589
 590
 591
 592
 593
 594
 595
 596
 597
 598
 599
 600
 601
 602
 603
 604
 605
 606
 607
 608
 609
 610
 611
 612
 613
 614
 615
 616
 617
 618
 619
 620
 621
 622
 623
 624
 625
 626
 627
 628
 629
 630
 631
 632
 633
 634
 635
 636
 637
 638
 639
 640
 641
 642
 643
 644
 645
 646
 647
 648
 649
 650
 651
 652
 653
 654
 655
 656
 657
 658
 659
 660
 661
 662
 663
 664
 665
 666
 667
 668
 669
 670
 671
 672
 673
 674
 675
 676
 677
 678
 679
 680
 681
 682
 683
 684
 685
 686
 687
 688
 689
 690
 691
 692
 693
 694
 695
 696
 697
 698
 699
 700
 701
 702
 703
 704
 705
 706
 707
 708
 709
 710
 711
 712
 713
 714
 715
 716
 717
 718
 719
 720
 721
 722
 723
 724
 725
 726
 727
 728
 729
 730
 731
 732
 733
 734
 735
 736
 737
 738
 739
 740
 741
 742
 743
 744
 745
 746
 747
 748
 749
 750
 751
 752
 753
 754
 755
 756
 757
 758
 759
 760
 761
 762
 763
 764
 765
 766
 767
 768
 769
 770
 771
 772
 773
 774
 775
 776
 777
 778
 779
 780
 781
 782
 783
 784
 785
 786
 787
 788
 789
 790
 791
 792
 793
 794
 795
 796
 797
 798
 799
 800
 801
 802
 803
 804
 805
 806
 807
 808
 809
 810
 811
 812
 813
 814
 815
 816
 817
 818
 819
 820
 821
 822
 823
 824
 825
 826
 827
 828
 829
 830
 831
 832
 833
 834
 835
 836
 837
 838
 839
 840
 841
 842
 843
 844
 845
 846
 847
 848
 849
 850
 851
 852
 853
 854
 855
 856
 857
 858
 859
 860
 861
 862
 863
 864
 865
 866
 867
 868
 869
 870
 871
 872
 873
 874
 875
 876
 877
 878
 879
 880
 881
 882
 883
 884
 885
 886
 887
 888
 889
 890
 891
 892
 893
 894
 895
 896
 897
 898
 899
 900
 901
 902
 903
 904
 905
 906
 907
 908
 909
 910
 911
 912
 913
 914
 915
 916
 917
 918
 919
 920
 921
 922
 923
 924
 925
 926
 927
 928
 929
 930
 931
 932
 933
 934
 935
 936
 937
 938
 939
 940
 941
 942
 943
 944
 945
 946
 947
 948
 949
 950
 951
 952
 953
 954
 955
 956
 957
 958
 959
 960
 961
 962
 963
 964
 965
 966
 967
 968
 969
 970
 971
 972
 973
 974
 975
 976
 977
 978
 979
 980
 981
 982
 983
 984
 985
 986
 987
 988
 989
 990
 991
 992
 993
 994
 995
 996
 997
 998
 999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
###############################################################################
# Name: ed_search.py                                                          #
# Purpose: Text searching services and utilities                              #
# Author: Cody Precord <cprecord@editra.org>                                  #
# Copyright: (c) 2007,2008 Cody Precord <staff@editra.org>                    #
# License: wxWindows License                                                  #
###############################################################################

"""
Provides text searching services, utilities, and ui components for searching
text documents and files.

@summary: Text searching and results presentation ui

"""

__author__ = "Cody Precord <cprecord@editra.org>"
__svnid__ = "$Id: ed_search.py 70097 2011-12-22 21:36:43Z CJP $"
__revision__ = "$Revision: 70097 $"

#--------------------------------------------------------------------------#
# Imports
import os
import sys
import re
import wx

# Local imports
import ed_glob
import ed_txt
import ed_msg
import plugin
import iface
from profiler import Profile_Get, Profile_Set
import eclib
import ebmlib
import ed_basewin
import ed_thread

#--------------------------------------------------------------------------#
# Globals

_ = wx.GetTranslation
#--------------------------------------------------------------------------#

class EdSearchEngine(ebmlib.SearchEngine):
    """Text searching engine"""
    def __init__(self, query, regex=True, down=True,
                 matchcase=True, wholeword=False):
        super(EdSearchEngine, self).__init__(query, regex, down,
                                             matchcase, wholeword)
        # Attributes
        self._offset = 0

    def FormatResult(self, fname, lnum, match):
        """Format the search result string for find all action that is performed
        on a selection.
        @return: string
        @todo: better unicode handling

        """
        fname = ed_txt.DecodeString(fname, sys.getfilesystemencoding())
        if not ebmlib.IsUnicode(fname):
            fname = _("DECODING ERROR")

        match = ed_txt.DecodeString(match)
        if not ebmlib.IsUnicode(match):
            match = _("DECODING ERROR")
        else:
            match = u" " + match.lstrip()

        rstring = u"%(fname)s (%(lnum)d): %(match)s"
        lnum = lnum + self._offset + 1
        return rstring % dict(fname=fname, lnum=lnum, match=match)

    def SetOffset(self, offset):
        """Set the offset for a search in selection action
        @param offset: int

        """
        self._offset = offset

    def SetQuery(self, query):
        """Set the query string"""
        if ebmlib.IsUnicode(query):
            # Encode to UTF-8 as used internally by the stc
            query = query.encode('utf-8')
        super(EdSearchEngine, self).SetQuery(query)

#--------------------------------------------------------------------------#

class SearchController(object):
    """Controls the interface to the text search engine"""
    def __init__(self, owner, getstc):
        """Create the controller
        @param owner: View that owns this controller
        @param getstc: Callable to get the current buffer with

        """
        super(SearchController, self).__init__()

        # Attributes
        self._parent   = owner
        self._stc      = getstc
        self._finddlg  = None
        self._posinfo  = dict(scroll=0, start=0, found=-1, ldir=None)
        self._data     = self._InitFindData()
        self._li_choices = list()
        self._li_sel   = 0
        self._filters  = None
        self._clients = list()
        self._engine = EdSearchEngine(u"") # For incremental searches

        # Setup
        self._engine.SetResultFormatter(self._engine.FormatResult)

        # Event handlers
        self._parent.Bind(eclib.EVT_FIND, self.OnFind)
        self._parent.Bind(eclib.EVT_FIND_NEXT, self.OnFind)
        self._parent.Bind(eclib.EVT_FIND_ALL, self.OnFindAll)
        self._parent.Bind(eclib.EVT_COUNT, self.OnCount)
        self._parent.Bind(eclib.EVT_REPLACE, self.OnReplace)
        self._parent.Bind(eclib.EVT_REPLACE_ALL, self.OnReplaceAll)
        self._parent.Bind(eclib.EVT_FIND_CLOSE, self.OnFindClose)
        self._parent.Bind(eclib.EVT_OPTION_CHANGED, self.OnOptionChanged)

        # Editra message handlers
        ed_msg.Subscribe(self._OnShowFindMsg, ed_msg.EDMSG_FIND_SHOW_DLG)

    def __del__(self):
        """Cleanup message handlers"""
        ed_msg.Unsubscribe(self._OnShowFindMsg)
        if self._finddlg:
            self._finddlg.Destroy()

    def _CreateNewDialog(self, e_id):
        """Create and set the controllers find dialog
        @param e_id: Dialog Type Id

        """
        # TODO: find out why parent is not a Window in some cases...
        if not isinstance(self._parent, wx.Window):
            parent = wx.GetApp().GetActiveWindow()
        else:
            parent = self._parent

        if e_id == ed_glob.ID_FIND_REPLACE:
            dlg = eclib.AdvFindReplaceDlg(parent, self._data,
                                          (_("Find"), _("Find/Replace")),
                                          eclib.AFR_STYLE_REPLACEDIALOG)
        elif e_id == ed_glob.ID_FIND:
            dlg = eclib.AdvFindReplaceDlg(parent, self._data,
                                          (_("Find"), _("Find/Replace")))
        else:
            dlg = None

        # Change the icons to use ones from Editra's ArtProvider
        if dlg is not None:
            find = wx.ArtProvider.GetBitmap(str(ed_glob.ID_FIND), wx.ART_MENU)
            replace = wx.ArtProvider.GetBitmap(str(ed_glob.ID_FIND_REPLACE),
                                               wx.ART_MENU)
            if find is not None and find.IsOk():
                dlg.SetFindBitmap(find)

            if replace is not None and replace.IsOk():
                dlg.SetReplaceBitmap(replace)

            # Set the persisted data from the last time the dialog was shown
            dlg.SetLookinChoices(self._li_choices)
            dlg.SetLookinSelection(self._li_sel)
            dlg.SetFileFilters(self._filters)

        return dlg

    def _OnShowFindMsg(self, msg):
        """Message handler for clients to request and setup the find dialog
        with.
        @param msg: dict(mainw, lookin, findtxt)

        """
        data = msg.GetData()
        if data.get('mainw', None) == self._parent.TopLevelParent:

            if 'findtxt' in data:
                self.SetQueryString(data.get('findtxt'))
            else:
                query = self.GetClientString()
                if len(query):
                    self.SetQueryString(query)

            # Dialog is not currently open
            if self._finddlg is None:
                self._finddlg = self._CreateNewDialog(ed_glob.ID_FIND)
                if self._finddlg is None:
                    return
                self._finddlg.CenterOnParent()
                self._finddlg.SetTransparent(240)
    #            self._finddlg.SetExtraStyle(wx.WS_EX_PROCESS_UI_UPDATES)
            else:
                # Dialog has been created already so just update it
                self._UpdateDialogState(ed_glob.ID_FIND)

            if 'lookin' in data:
                self._finddlg.SetLookinPath(data.get('lookin'))

            self._finddlg.Show()
            self._finddlg.Raise()
            self._finddlg.SetFocus()
        else:
            return

    def _UpdateDialogState(self, e_id):
        """Update the state of the existing dialog"""
        if self._finddlg is None:
            self._finddlg = self._CreateNewDialog(e_id)
            self._finddlg.CenterOnParent()
        else:
            mode = self._finddlg.GetDialogMode()
            if e_id == ed_glob.ID_FIND and mode != eclib.AFR_STYLE_FINDDIALOG:
                self._finddlg.SetDialogMode(eclib.AFR_STYLE_FINDDIALOG)
            elif e_id == ed_glob.ID_FIND_REPLACE and \
                 mode != eclib.AFR_STYLE_REPLACEDIALOG:
                self._finddlg.SetDialogMode(eclib.AFR_STYLE_REPLACEDIALOG)
            else:
                pass

        # Update the text that should be shown in the find replace fields
        self._finddlg.RefreshFindReplaceFields()
        self._finddlg.SetFocus()

    def _InitFindData(self):
        """Get the intial find data
        @return: wx.FindReplaceData

        """
        fdata = Profile_Get('SEARCH_SETTINGS', default=None)
        if fdata is not None:
            fmap = dict(matchcase=eclib.AFR_MATCHCASE,
                        wholeword=eclib.AFR_WHOLEWORD,
                        regex=eclib.AFR_REGEX,
                        recurse=eclib.AFR_RECURSIVE)
            flags = 0
            for flag in fdata:
                if fdata.get(flag, False):
                    flags |= fmap.get(flag, 0)
            fdata = wx.FindReplaceData(flags)
        else:
            fdata = wx.FindReplaceData(eclib.AFR_RECURSIVE)
        return fdata

    def _StoreFindData(self):
        """Serialize the find/replace settings into the user profile"""
        fmap = dict(matchcase=eclib.AFR_MATCHCASE,
                    wholeword=eclib.AFR_WHOLEWORD,
                    regex=eclib.AFR_REGEX,
                    recurse=eclib.AFR_RECURSIVE)
        tostore = dict()
        flags = self._data.GetFlags()
        for fname in fmap:
            flag = fmap[fname]
            tostore[fname] = False
            if flags & flag:
                tostore[fname] = True
        Profile_Set('SEARCH_SETTINGS', tostore)

    #---- Public Interface ----#

    def GetClientString(self, multiline=False):
        """Get the selected text in the current client buffer. By default
        it will only return the selected text if its on a single line.
        @keyword multiline: Return text if it is multiple lines
        @return: string

        """
        cbuff = self._stc()
        if cbuff is None:
            return u''

        start, end = cbuff.GetSelection()
        rtext = cbuff.GetSelectedText()
        if start != end:
            sline = cbuff.LineFromPosition(start)
            eline = cbuff.LineFromPosition(end)
            if not multiline and (sline != eline):
                rtext = u''
        return rtext

    def GetData(self):
        """Get the controllers FindReplaceData
        @return: wx.FindReplaceData

        """
        return self._data

    def GetDialog(self):
        """Return the active find dialog if one exists else return None
        @return: FindDialog or None

        """
        return self._finddlg

    def GetLastFound(self):
        """Returns the position value of the last found search item
        if the last search resulted in nothing being found then the
        return value will -1.
        @return: position of last search operation
        @rtype: int

        """
        return self._posinfo['found']

    def OnUpdateFindUI(self, evt):
        """Update ui handler for find related controls
        @param evt: updateui event

        """
        if evt.GetId() in (ed_glob.ID_FIND_PREVIOUS, ed_glob.ID_FIND_NEXT):
            evt.Enable(len(self.GetData().GetFindString()))
        else:
            evt.Skip()

    def OnCount(self, evt):
        """Count the number of matches"""
        stc = self._stc()

        # Create the search engine
        query = evt.GetFindString()
        mode = evt.GetSearchType()
        engine = ebmlib.SearchEngine(query, evt.IsRegEx(),
                                     True, evt.IsMatchCase(), evt.IsWholeWord())

        if mode == eclib.LOCATION_CURRENT_DOC:
            engine.SetSearchPool(stc.GetTextRaw())
        elif mode == eclib.LOCATION_IN_SELECTION:
            engine.SetSearchPool(stc.GetSelectedTextRaw())
        else:
            # TODO: report that this is not supported yet
            #       this case should not happen as the count button is currently
            #       disabled for any conditions that fall into this case.
            return

        matches = engine.FindAll()
        if matches:
            count = len(matches)
        else:
            count = 0

        rmap = dict(term=query, count=count)
        wx.MessageBox(_("The search term \'%(term)s\' was found %(count)d times.") % rmap,
                      _("Find Count"),
                      wx.ICON_INFORMATION|wx.OK)

    def OnFind(self, evt, findnext=False, incremental=False):
        """Do an incremental search in the currently buffer
        @param evt: EVT_FIND, EVT_FIND_NEXT
        @keyword findnext: force a find next action

        """
        data = self.GetData()

        # Find next from menu event or called internally by replace
        if findnext or evt.GetEventType() == wx.wxEVT_COMMAND_MENU_SELECTED:

            # Adjust flags
            flags = data.GetFlags()
            if not findnext and evt.GetId() == ed_glob.ID_FIND_PREVIOUS:
                flags |= eclib.AFR_UP
            elif eclib.AFR_UP & flags:
                # Not a find previous request so make sure that
                # the search up flag is cleared.
                flags ^= eclib.AFR_UP

            evt = eclib.FindEvent(eclib.edEVT_FIND_NEXT, flags=flags)
            evt.SetFindString(data.GetFindString())

        stc = self._stc()
        data.SetFindString(evt.GetFindString())

        # Create the search engine
        isdown = not evt.IsUp()
        self._engine.SetQuery(data.GetFindString())
        self._engine.SetFlags(isregex=evt.IsRegEx(),
                              matchcase=evt.IsMatchCase(),
                              wholeword=evt.IsWholeWord(),
                              down=isdown)

        # Check if expression was valid or not
        if self._engine.GetQueryObject() is None:
            fail = ed_txt.DecodeString(self._engine.GetQuery(), 'utf-8')
            wx.MessageBox(_("Invalid expression \"%s\"") % fail,
                          _("Regex Compile Error"),
                          style=wx.OK|wx.CENTER|wx.ICON_ERROR)
            return

        # XXX: may be inefficient to copy whole buffer each time for files
        #      that are large.
        self._engine.SetSearchPool(stc.GetTextRaw())

        # Get the search start position
        if evt.GetEventType() == eclib.edEVT_FIND:
            if not incremental:
                spos = stc.CurrentPos
            else:
                # For incremental search redo search starting from last found
                # position.
                spos = self._posinfo['found']
                if spos < 0:
                    spos = stc.CurrentPos
        else:
            spos = stc.CurrentPos
            start, end = stc.GetSelection()
            if start != end:
                if isdown:
                    spos = max(start, end)
                else:
                    spos = min(start, end)

        # Do the find
        match = self._engine.Find(spos)
        if match is not None:
            start, end = match

            if isdown:
                start = start + spos
                end = end + spos
                stc.SetSelection(start, end)
            else:
                stc.SetSelection(start, end)

            # Ensure caret and the line its in is exposed
            stc.EnsureCaretVisible()
            line = stc.LineFromPosition(start)
            stc.EnsureVisible(line)

            self._posinfo['found'] = start

            ed_msg.PostMessage(ed_msg.EDMSG_UI_SB_TXT,
                               (ed_glob.SB_INFO, u""))
        else:
            # try search from top again
            if isdown:
                match = self._engine.Find(0)
                ed_msg.PostMessage(ed_msg.EDMSG_UI_SB_TXT,
                                  (ed_glob.SB_INFO, _("Search wrapped to top")))
            else:
                match = self._engine.Find(-1)
                ed_msg.PostMessage(ed_msg.EDMSG_UI_SB_TXT,
                                  (ed_glob.SB_INFO,
                                  _("Search wrapped to bottom")))

            if match is not None:
                start, end = match

                self._posinfo['found'] = start

                stc.SetSelection(start, end)
                
                # Ensure caret and the line its in is exposed
                stc.EnsureCaretVisible()
                line = stc.LineFromPosition(start)
                stc.EnsureVisible(line)
            else:
                self._posinfo['found'] = -1
                fail = ed_txt.DecodeString(self._engine.GetQuery(), 'utf-8')
                ed_msg.PostMessage(ed_msg.EDMSG_UI_SB_TXT,
                                   (ed_glob.SB_INFO,
                                   _("\"%s\" was not found") % fail))

    def OnFindAll(self, evt):
        """Find all results for the given query and display results in a
        L{SearchResultScreen} in the Shelf.

        """
        smode = evt.GetSearchType()
        query = evt.GetFindString()
        if not query:
            return

        # Create a new search engine object
        engine = EdSearchEngine(query, evt.IsRegEx(), True,
                                evt.IsMatchCase(), evt.IsWholeWord())
        engine.SetResultFormatter(engine.FormatResult)

        # Send the search function over to any interested parties that wish
        # to process the results.
        if smode == eclib.LOCATION_CURRENT_DOC:
            stc = self._stc()
            fname = stc.GetFileName()
            if len(fname):
                ed_msg.PostMessage(ed_msg.EDMSG_START_SEARCH,
                                   (engine.SearchInFile, [fname,], dict()))
            else:
                engine.SetSearchPool(stc.GetTextRaw())
                ed_msg.PostMessage(ed_msg.EDMSG_START_SEARCH,
                                   (engine.FindAllLines,))
        if smode == eclib.LOCATION_IN_SELECTION:
            stc = self._stc()
            sel_s = min(stc.GetSelection())
            offset = stc.LineFromPosition(sel_s)
            engine.SetOffset(offset)
            engine.SetSearchPool(stc.GetSelectedTextRaw())
            ed_msg.PostMessage(ed_msg.EDMSG_START_SEARCH,
                               (engine.FindAllLines,))
        elif smode == eclib.LOCATION_OPEN_DOCS:
            files = [fname.GetFileName()
                     for fname in self._parent.GetTextControls()]
            ed_msg.PostMessage(ed_msg.EDMSG_START_SEARCH,
                               (engine.SearchInFiles, [files,], dict()))
        elif smode == eclib.LOCATION_IN_CURRENT_DIR:
            stc = self._stc()
            path = ebmlib.GetPathName(stc.GetFileName())
            engine.SetFileFilters(evt.GetFileFilters())
            ed_msg.PostMessage(ed_msg.EDMSG_START_SEARCH,
                               (engine.SearchInDirectory,
                               [path,], dict(recursive=evt.IsRecursive())))
        elif smode == eclib.LOCATION_IN_FILES:
            path = evt.GetDirectory()
            engine.SetFileFilters(evt.GetFileFilters())
            ed_msg.PostMessage(ed_msg.EDMSG_START_SEARCH,
                               (engine.SearchInDirectory,
                                [path,], dict(recursive=evt.IsRecursive())))

    def OnFindSelected(self, evt):
        """Set the search query to the selected text and progress the search
        to the next match.

        """
        stc = self._stc()

        fstring = stc.GetSelectedText()
        if fstring:
            data = self.GetData()
            data.SetFindString(fstring)
            self.OnFind(evt)
        else:
            evt.Skip()

    def OnFindClose(self, evt):
        """Process storing search dialog state when it is closed
        @param evt: findlg.EVT_FIND_CLOSE

        """
        if self._finddlg is not None:
            # Save the lookin values for next time dialog is shown
            self._li_choices = self._finddlg.GetLookinChoices()
            self._li_sel = self._finddlg.GetLookinSelection()
            self._filters = self._finddlg.GetFileFilters()

            # Store in profile. Only save most recent 8 in history
            if len(self._li_choices) > 8:
                choices = self._li_choices[-8:]
            else:
                choices = self._li_choices

            # Save the most recent choices of search locations
            Profile_Set('SEARCH_LOC', choices)
            Profile_Set('SEARCH_FILTER', self._filters)
            self._StoreFindData()
            self._finddlg.Destroy()
            self._finddlg = None
        buff = wx.GetApp().GetCurrentBuffer()
        if buff:
            buff.SetFocus()

    def OnOptionChanged(self, evt):
        """Handle when the find options are changed in the dialog"""
        self._StoreFindData() # Persist new search settings from find dialog
        dead = list()
        for idx, client in enumerate(self._clients):
            try:
                client.NotifyOptionChanged(evt)
            except wx.PyDeadObjectError:
                dead.append(idx)

    def OnReplace(self, evt):
        """Replace the selected text in the current buffer
        @param evt: finddlg.EVT_REPLACE

        """
        replacestring = evt.GetReplaceString()
        if evt.IsRegEx() and self._engine is not None:
            match = self._engine.GetLastMatch()
            if match is not None:
                try:
                    value = match.expand(replacestring)
                except re.error, err:
                    msg = _("Error in regular expression expansion."
                            "The replace action cannot be completed.\n\n"
                            "Error Message: %s") % err.message
                    wx.MessageBox(msg, _("Replace Error"), wx.OK|wx.ICON_ERROR)
                    return
            else:
                value = replacestring
        else:
            value = replacestring

        sel = self._stc().GetSelection()
        if sel[0] == sel[1]:
            return

        self._stc().ReplaceSelection(value)

        # Go to the next match
        eid = ed_glob.ID_FIND_NEXT
        if evt.IsUp():
            eid = ed_glob.ID_FIND_PREVIOUS
        tevt = eclib.FindEvent(eclib.edEVT_FIND_NEXT, eid)
        tevt.SetFlags(evt.GetFlags())
        tevt.SetFindString(evt.GetFindString())
        self.OnFind(tevt)

    def OnReplaceAll(self, evt):
        """Replace all instance of the search string with the given
        replace string for the given search context.

        """
        smode = evt.GetSearchType()
        rstring = evt.GetReplaceString()
        engine = EdSearchEngine(evt.GetFindString(), evt.IsRegEx(),
                                True, evt.IsMatchCase(), evt.IsWholeWord())
        engine.SetResultFormatter(engine.FormatResult)

        results = 0
        if smode == eclib.LOCATION_CURRENT_DOC:
            stc = self._stc()
            engine.SetSearchPool(stc.GetTextRaw())
            matches = engine.FindAll()
            if matches is not None:
                self.ReplaceInStc(stc, matches, rstring, evt.IsRegEx())
                results = len(matches)
        elif smode == eclib.LOCATION_IN_SELECTION:
            stc = self._stc()
            engine.SetSearchPool(stc.GetSelectedTextRaw())
            matches = engine.FindAll()
            if matches is not None:
                self.ReplaceInStcSelection(stc, matches, rstring, evt.IsRegEx())
                results = len(matches)
#            regex = engine.GetQueryObject()
#            if regex is not None:
#                text = engine.GetSearchPool()
#                def replaceString(match):
#                    if evt.IsRegEx():
#                        value = match.expand(rstring.encode('utf-8')).decode('utf-8')
#                    else:
#                        value = rstring
#                    return value
#                text = regex.sub(replaceString, text)
#                stc.ReplaceSelection(text)
            else:
                pass # TODO: notify of no matches?
        elif smode == eclib.LOCATION_OPEN_DOCS:
            for ctrl in self._parent.GetTextControls():
                engine.SetSearchPool(ctrl.GetTextRaw())
                matches = engine.FindAll()
                if matches is not None:
                    self.ReplaceInStc(ctrl, matches, rstring, evt.IsRegEx())
                    results += len(matches)
        elif smode in (eclib.LOCATION_IN_CURRENT_DIR, eclib.LOCATION_IN_FILES):
            dlg = wx.MessageDialog(self._parent,
                                   _("Sorry will be ready for future version"),
                                   _("Not implemented"),
#                                   _("Warning this cannot be undone!"),
#                                   _("Do Replace All?"),
                                   style=wx.ICON_WARNING|wx.OK|wx.CANCEL|wx.CENTER)
            result = dlg.ShowModal()
            dlg.Destroy()

            if result == wx.ID_OK:
                pass
#                path = evt.GetDirectory()
#                ed_msg.PostMessage(ed_msg.EDMSG_START_SEARCH,
#                                   (engine.SearchInDirectory,
#                                    [path,], dict(recursive=evt.IsRecursive())))
            else:
                return

        # Post number of matches that were replaced to the status bar
        if results > 0:
            ed_msg.PostMessage(ed_msg.EDMSG_UI_SB_TXT,
                              (ed_glob.SB_INFO,
                              _("%d matches were replaced.") % results))

    def OnShowFindDlg(self, evt):
        """Catches the Find events and shows the appropriate find dialog
        @param evt: event that called this handler
        @postcondition: find dialog is shown

        """
        # Check for a selection in the buffer and load that text if
        # there is any and it is at most one line.
        query = self.GetClientString()
        if len(query):
            self.SetQueryString(query)

        eid = evt.GetId()
        # Dialog is not currently open
        if self._finddlg is None:
            self._finddlg = self._CreateNewDialog(eid)
            if self._finddlg is None:
                evt.Skip()
                return
            self._finddlg.CenterOnParent()
            self._finddlg.SetTransparent(240)
#            self._finddlg.SetExtraStyle(wx.WS_EX_PROCESS_UI_UPDATES)
            self._finddlg.Show()
        else:
            # Dialog is open already so just update it
            self._UpdateDialogState(eid)
            self._finddlg.Show()
            self._finddlg.Raise()
        self._finddlg.SetFocus()

    def RegisterClient(self, client):
        """Register a client object of this search controller. The client object
        must implement a method called NotifyOptionChanged to be called when
        search options are changed.

        >>> def NotifyOptionChanged(self, evt)

        @param client: object

        """
        if client not in self._clients:
            self._clients.append(client)

    def RemoveClient(self, client):
        """Remove a client from this controller
        @param client: object

        """
        if client in self._clients:
            self._clients.remove(client)

    @staticmethod
    def ReplaceInStc(stc, matches, rstring, isregex=True):
        """Replace the strings at the position in the given StyledTextCtrl
        @param stc: StyledTextCtrl
        @param matches: list of match objects
        @param rstring: Replace string
        @keyword isregex: Is it a regular expression operation (bool)

        """
        stc.BeginUndoAction()
        rstring_utf8 = rstring.encode('utf-8')
        for match in reversed(matches):
            start, end = match.span()
            if isregex:
                try:
                    value = match.expand(rstring_utf8).decode('utf-8')
                except re.error, err:
                    msg = _("Error in regular expression expansion."
                            "The replace action cannot be completed.\n\n"
                            "Error Message: %s") % err.message
                    wx.MessageBox(msg, _("Replace Error"), wx.OK|wx.ICON_ERROR)
                    break
            else:
                value = rstring
            stc.SetTargetStart(start)
            stc.SetTargetEnd(end)
            stc.ReplaceTarget(value)
        stc.EndUndoAction()

    @staticmethod
    def ReplaceInStcSelection(stc, matches, rstring, isregex=True):
        """Replace all the matches in the selection"""
        sel_s = min(stc.GetSelection())
        stc.BeginUndoAction()
        for match in reversed(matches):
            start, end = match.span()
            start += sel_s
            end += sel_s
            if isregex:
                value = match.expand(rstring.encode('utf-8')).decode('utf-8')
            else:
                value = rstring
            stc.SetTargetStart(start)
            stc.SetTargetEnd(end)
            stc.ReplaceTarget(value)
        stc.EndUndoAction()

    def SetFileFilters(self, filters):
        """Set the file filter to use
        @param filters: string '*.py *.pyw'

        """
        self._filters = filters

    def SetLookinChoices(self, choices):
        """Set the list of locations to use for the recent search
        locations.
        @param choices: list of strings

        """
        self._li_choices = choices

    def SetQueryString(self, query):
        """Sets the search query value
        @param query: string to search for

        """
        self._data.SetFindString(query)

    def SetSearchFlags(self, flags):
        """Set the find services search flags
        @param flags: bitmask of parameters to set

        """
        self._data.SetFlags(flags)
        if self._finddlg is not None:
            self._finddlg.SetData(self._data)
        self._StoreFindData() # Update persistence

    def RefreshControls(self):
        """Refresh controls that are associated with this controllers data."""
        if self._finddlg is not None:
            self._finddlg.RefreshFindOptions()
        self._StoreFindData() # Update persistence

#-----------------------------------------------------------------------------#

class EdSearchCtrl(wx.SearchCtrl):
    """Creates a simple search control for use in the toolbar
    or a statusbar and the such. Supports incremental search,
    and uses L{SearchController} to do the actual searching of the
    document.

    """
    def __init__(self, parent, id_, value="", menulen=0, \
                 pos=wx.DefaultPosition, size=wx.DefaultSize, \
                 style=wx.TE_RICH2|wx.TE_PROCESS_ENTER):
        """Initializes the Search Control
        @param parent: parent window
        @param id_: control id
        @keyword value: default value
        @keyword menulen: max length of history menu
        @keyword pos: control position (tuple)
        @keyword size: control size (tuple)
        @keyword style: control style bitmask

        """
        super(EdSearchCtrl, self).__init__(parent, id_, value, pos, size, style)

        # Attributes
        self._parent     = parent
        # TEMP HACK
        self.FindService = self.GetTopLevelParent().GetNotebook()._searchctrl
        self._flags      = 0
        self._recent     = list()        # The History List
        self._last       = None
        self.rmenu       = wx.Menu()
        self.max_menu    = menulen + 2   # Max menu length + descript/separator
        self._txtctrl    = None          # msw/gtk only

        # Setup Recent Search Menu
        lbl = self.rmenu.Append(wx.ID_ANY, _("Recent Searches"))
        lbl.Enable(False)
        self.rmenu.AppendSeparator()
        self.SetMenu(self.rmenu)

        # Bind Events
        if wx.Platform in ['__WXMSW__', '__WXGTK__']:
            for child in self.GetChildren():
                if isinstance(child, wx.TextCtrl):
                    child.Bind(wx.EVT_KEY_UP, self.ProcessEvent)
                    child.Bind(wx.EVT_KEY_DOWN, self.ProcessEvent)
                    self._txtctrl = child
                    break
        else:
            self.Bind(wx.EVT_KEY_UP, self.ProcessEvent)
            self.Bind(wx.EVT_KEY_DOWN, self.ProcessEvent)
        self.Bind(wx.EVT_SEARCHCTRL_CANCEL_BTN, self.OnCancel)
        self.Bind(wx.EVT_MENU, self.OnHistMenu)

    #---- Functions ----#
    def AutoSetQuery(self, multiline=False):
        """Autoload a selected string from the controls client buffer"""
        query = self.FindService.GetClientString(multiline)
        if len(query):
            self.FindService.SetQueryString(query)
            self.SetValue(query)

    def ClearSearchFlag(self, flag):
        """Clears a previously set search flag
        @param flag: flag to clear from search data

        """
        data = self.GetSearchData()
        if data is not None:
            c_flags = data.GetFlags()
            c_flags ^= flag
            self._flags = c_flags
            data.SetFlags(self._flags)
            self.FindService.RefreshControls()

    def FindAll(self):
        """Fire off a FindAll job in the current buffer"""
        evt = eclib.FindEvent(eclib.edEVT_FIND_ALL, flags=self._flags)
        evt.SetFindString(self.GetValue())
        self.FindService.OnFindAll(evt)

    def DoSearch(self, next=True, incremental=False):
        """Do the search and move the selection
        @keyword next: search next or previous
        @keyword incremental: is this an incremental search

        """
        s_cmd = eclib.edEVT_FIND
        if not next:
            self.SetSearchFlag(eclib.AFR_UP)
        else:
            if eclib.AFR_UP & self._flags:
                self.ClearSearchFlag(eclib.AFR_UP)

        if self.GetValue() == self._last:
            s_cmd = eclib.edEVT_FIND_NEXT

        evt = eclib.FindEvent(s_cmd, flags=self._flags)
        self._last = self.GetValue()
        evt.SetFindString(self.GetValue())
        self.FindService.OnFind(evt, incremental=incremental)

        # Give feedback on whether text was found or not
        if self.FindService.GetLastFound() < 0 and len(self.GetValue()) > 0:
            if self._txtctrl is None:
                self.SetForegroundColour(wx.RED)
            else:
                self._txtctrl.SetForegroundColour(wx.RED)
            wx.Bell()
        else:
            # ?wxBUG? cant set text back to black after changing color
            # But setting it to this almost black color works. Most likely its
            # due to bit masking but I haven't looked at the source so I am not
            # sure
            if self._txtctrl is None:
                self.SetForegroundColour(wx.ColourRGB(0 | 1 | 0))
            else:
                self._txtctrl.SetForegroundColour(wx.ColourRGB(0 | 1 | 0))
        self.Refresh()

    def GetSearchController(self):
        """Get the L{SearchController} used by this control.
        @return: L{SearchController}

        """
        return self.FindService

    def GetSearchData(self):
        """Gets the find data from the controls FindService
        @return: search data
        @rtype: wx.FindReplaceData

        """
        if hasattr(self.FindService, "GetData"):
            return self.FindService.GetData()
        else:
            return None

    def GetHistory(self):
        """Gets and returns the history list of the control
        @return: list of recent search items

        """
        return getattr(self, "_recent", list())

    def InsertHistoryItem(self, value):
        """Inserts a search query value into the top of the history stack
        @param value: search string
        @postcondition: the value is added to the history menu

        """
        if value == wx.EmptyString:
            return

        # Make sure menu only has unique items
        m_items = list(self.rmenu.GetMenuItems())
        for menu_i in m_items:
            if value == menu_i.GetLabel():
                self.rmenu.RemoveItem(menu_i)

        # Create and insert the new item
        n_item = wx.MenuItem(self.rmenu, wx.NewId(), value)
        self.rmenu.InsertItem(2, n_item)

        # Update History list
        self._recent.insert(0, value)
        if len(self._recent) > self.max_menu:
            self._recent.pop()

        # Check Menu Length
        m_len = self.rmenu.GetMenuItemCount()
        if m_len > self.max_menu:
            try:
                self.rmenu.RemoveItem(m_items[-1])
            except IndexError, msg:
                wx.GetApp().GetLog()("[ed_search][err] menu error: %s" % str(msg))

    def IsMatchCase(self):
        """Returns True if the search control is set to search
        in Match Case mode.
        @return: whether search is using match case or not
        @rtype: boolean

        """
        data = self.GetSearchData()
        if data is not None:
            return bool(eclib.AFR_MATCHCASE & data.GetFlags())
        return False

    def IsRegEx(self):
        """Returns True if the search control is set to search
        in regular expression mode.
        @return: whether search is using regular expressions or not
        @rtype: boolean

        """
        data = self.GetSearchData()
        if data is not None:
            return bool(eclib.AFR_REGEX & data.GetFlags())
        return False

    def IsSearchPrevious(self):
        """Returns True if the search control is set to search
        in Previous mode.
        @return: whether search is searchin up or not
        @rtype: boolean

        """
        data = self.GetSearchData()
        if data is not None:
            return bool(eclib.AFR_UP & data.GetFlags())
        return False

    def IsWholeWord(self):
        """Returns True if the search control is set to search
        in Whole Word mode.
        @return: whether search is using match whole word or not
        @rtype: boolean

        """
        data = self.GetSearchData()
        if data is not None:
            return bool(eclib.AFR_WHOLEWORD & data.GetFlags())
        return False

    def SetFocus(self):
        """Set the focus and select the text"""
        super(EdSearchCtrl, self).SetFocus()
        self.AutoSetQuery()
        self.SelectAll()

    def SetHistory(self, hist_list):
        """Populates the history list from a list of
        string values.
        @param hist_list: list of search items

        """
        hist_list.reverse()
        for item in hist_list:
            self.InsertHistoryItem(item)

    def SetSearchFlag(self, flags):
        """Sets the search data flags
        @param flags: search flag to add

        """
        data = self.GetSearchData()
        if data is not None:
            c_flags = data.GetFlags()
            c_flags |= flags
            self._flags = c_flags
            data.SetFlags(self._flags)
            self.FindService.RefreshControls()

    #---- End Functions ----#

    #---- Event Handlers ----#
    def ProcessEvent(self, evt):
        """Processes Events for the Search Control
        @param evt: the event that called this handler

        """
        e_key = evt.GetKeyCode()
        if evt.GetEventType() != wx.wxEVT_KEY_UP:
            if e_key in (wx.WXK_UP, wx.WXK_DOWN):
                buff = wx.GetApp().GetCurrentBuffer()
                if isinstance(buff, wx.stc.StyledTextCtrl):
                    val = -1
                    if e_key == wx.WXK_DOWN:
                        val = 1
                    buff.ScrollLines(val)
            else:
                evt.Skip()
            return

        if e_key == wx.WXK_ESCAPE:
            # TODO change to more safely determine the context
            # Currently control is only used in command bar
            self.GetParent().Hide()
            evt.Skip()
            return
        elif e_key == wx.WXK_SHIFT:
            self.ClearSearchFlag(eclib.AFR_UP)
            return
        else:
            pass

        tmp = self.GetValue()
        self.ShowCancelButton(len(tmp) > 0)

        # Don't do search for navigation keys
        if tmp == wx.EmptyString or evt.CmdDown() or evt.ControlDown() or \
           e_key in [wx.WXK_COMMAND, wx.WXK_LEFT, wx.WXK_RIGHT, wx.WXK_CONTROL,
                     wx.WXK_ALT, wx.WXK_UP, wx.WXK_DOWN, wx.WXK_F1, wx.WXK_F2, 
                     wx.WXK_F3, wx.WXK_F4, wx.WXK_F5, wx.WXK_F6, wx.WXK_F7, 
                     wx.WXK_F8, wx.WXK_F9, wx.WXK_F10, wx.WXK_F11, wx.WXK_F12]:
            return

        if e_key == wx.WXK_RETURN or e_key == wx.WXK_F3:
            if evt.ShiftDown():
                self.DoSearch(next=False)
            else:
                self.DoSearch(next=True)

            # Add to search history
            if e_key == wx.WXK_RETURN:
                self.InsertHistoryItem(self.GetValue())
        else:
            # Don't do incremental searches when the RegEx flag is set in order
            # to avoid errors in compiling the expression
            if not self.IsRegEx():
                self.DoSearch(next=True, incremental=True)

    def OnCancel(self, evt):
        """Cancels the Search Query
        @param evt: the event that called this handler

        """
        self.SetValue(u"")
        self.ShowCancelButton(False)
        evt.Skip()

    def OnHistMenu(self, evt):
        """Sets the search controls value to the selected menu item
        @param evt: the event that called this handler
        @type evt: wx.MenuEvent

        """
        item_id = evt.GetId()
        item = self.rmenu.FindItemById(item_id)
        if item != None:
            self.SetValue(item.GetLabel())
        else:
            evt.Skip()

    #---- End Event Handlers ----#

#-----------------------------------------------------------------------------#

class EdFindResults(plugin.Plugin):
    """Shelf interface implementation for the find results"""
    plugin.Implements(iface.ShelfI)
    SUBSCRIBED = False
    RESULT_SCREENS = list()

    def __init__(self, pmgr):
        """Create the FindResults plugin
        @param pmgr: This plugins manager

        """
        if not EdFindResults.SUBSCRIBED:
            ed_msg.Subscribe(EdFindResults.StartResultsScreen,
                             ed_msg.EDMSG_START_SEARCH)
            EdFindResults.SUBSCRIBED = True

#    def __del__(self):
#        if EdFindResults.SUBSCRIBED:
#            print "UNSUBSCRIBE"
#            ed_msg.Unsubscribe(self.StartResultsScreen)

    @property
    def __name__(self):
        return u'Find Results'

    def AllowMultiple(self):
        """Find Results allows multiple instances"""
        return True

    def CreateItem(self, parent):
        """Returns a log viewr panel"""
        screen = SearchResultScreen(parent)
        EdFindResults.RESULT_SCREENS.append(screen)
        return screen

    def GetBitmap(self):
        """Get the find results bitmap
        @return: wx.Bitmap

        """
        bmp = wx.ArtProvider.GetBitmap(str(ed_glob.ID_FIND), wx.ART_MENU)
        return bmp

    def GetId(self):
        """Plugin menu identifier ID"""
        return ed_glob.ID_FIND_RESULTS

    def GetMenuEntry(self, menu):
        """Get the menu entry for the log viewer
        @param menu: the menu items parent menu

        """
        return None

    def GetName(self):
        """Return the name of this control"""
        return self.__name__

    def IsStockable(self):
        """EdFindResults can be saved in the shelf preference stack"""
        return False

    @classmethod
    def StartResultsScreen(cls, msg):
        """Start a search in an existing window or open a new one
        @param cls: this class
        @param msg: message object

        """
        win = wx.GetApp().GetActiveWindow()

        # Cleanup window list for dead objects
        to_pop = list()
        for idx, item in enumerate(list(EdFindResults.RESULT_SCREENS)):
            if not isinstance(item, SearchResultScreen):
                to_pop.append(idx)

        for idx in reversed(to_pop):
            EdFindResults.RESULT_SCREENS.pop(idx)

        # Try to find an empty existing window to use for the new search
        screen = None
        if win is not None:
            shelf = win.GetShelf()
            s_mw = shelf.GetOwnerWindow()
            shelf_nb = shelf.GetWindow()
            for item in EdFindResults.RESULT_SCREENS:
                if item.GetDisplayedLines() < 3 and \
                   s_mw is win and item.GetParent() is shelf_nb:
                    screen = shelf.RaiseWindow(item)
                    break

            if screen is None:
                shelf.PutItemOnShelf(ed_glob.ID_FIND_RESULTS)
                screen = shelf_nb.GetCurrentPage()

            # Fire off the search job
            data = msg.GetData()
            if len(data) > 1:
                # Doing a file search operation
                screen.StartSearch(data[0], *data[1], **data[2])
            else:
                # Doing a buffer find operation (in memory)
                screen.StartSearch(data[0])

#-----------------------------------------------------------------------------#

class SearchResultScreen(ed_basewin.EdBaseCtrlBox):
    """Screen for displaying search results and navigating to them"""
    def __init__(self, parent):
        """Create the result screen
        @param parent: parent window

        """
        super(SearchResultScreen, self).__init__(parent)

        # Attributes
        self._meth = None
        self._job = None
        self._list = SearchResultList(self)
        self._cancelb = None
        self._clearb = None

        # Layout
        self.__DoLayout()
        self._cancelb.Disable()

        # Event Handlers
        self.Bind(wx.EVT_WINDOW_DESTROY, self.OnDestroy, self)
        self.Bind(wx.EVT_BUTTON,
                  lambda evt: self._list.Clear(), self._clearb)
        self.Bind(wx.EVT_BUTTON,
                  lambda evt: self.CancelSearch(), self._cancelb)
        self._list.Bind(eclib.EVT_TASK_START, self.OnTaskStart)
        self._list.Bind(eclib.EVT_TASK_COMPLETE, self.OnTaskComplete)

        # Message Handlers
        ed_msg.Subscribe(self.OnThemeChange, ed_msg.EDMSG_THEME_CHANGED)

    def OnDestroy(self, evt):
        if evt.GetId() == self.GetId():
            ed_msg.Unsubscribe(self.OnThemeChange)
        evt.Skip()

    def __DoLayout(self):
        """Layout and setup the results screen ui"""
        ctrlbar = self.CreateControlBar(wx.TOP)
        ctrlbar.AddStretchSpacer()

        # Cancel Button
        cancel = self.AddPlateButton(_("Cancel"), ed_glob.ID_STOP, wx.ALIGN_RIGHT)
        self._cancelb = cancel

        # Clear Button
        clear = self.AddPlateButton(_("Clear"), ed_glob.ID_DELETE, wx.ALIGN_RIGHT)
        self._clearb = clear

        self.SetWindow(self._list)

    def GetDisplayedLines(self):
        """Get the number of lines displayed in the output window"""
        return self._list.GetLineCount()

    def OnTaskStart(self, evt):
        """Start accepting results from the search thread
        @param evt: UpdateBufferEvent

        """
        start = u">>> %s" % _("Search Started")
        if self._meth is not None:
            start += (u": " + self._meth.im_self.GetOptionsString())
        self._list.SetStartEndText(start + os.linesep)
        self._list.Start(250)

    def OnTaskComplete(self, evt):
        """Update when task is complete
        @param evt: UpdateBufferEvent

        """
        self._meth = None

        # Stop the timer
        self._list.Stop()
        self._cancelb.Disable()

        # Update statusbar to show search is complete
        ed_msg.PostMessage(ed_msg.EDMSG_UI_SB_TXT,
                           (ed_glob.SB_INFO, _("Search complete")))

        # Flush any remaining text to the output buffer
        self._list.FlushBuffer()
 
        # Add our end message
        lines = max(0, self._list.GetLineCount() - 2)
        msg = _("Search Complete: %d matching lines where found.") % lines
        msg2 = _("Files Searched: %d" % self._list.GetFileCount())
        end = u">>> %s \t%s" % (msg, msg2)
        self._list.SetStartEndText(end + os.linesep)

    def OnThemeChange(self, msg):
        """Update the button icons after the theme has changed
        @param msg: Message Object

        """
        cbmp = wx.ArtProvider.GetBitmap(str(ed_glob.ID_DELETE), wx.ART_MENU)
        self._clearb.SetBitmap(cbmp)
        self._clearb.Refresh()

        cbmp = wx.ArtProvider.GetBitmap(str(ed_glob.ID_STOP), wx.ART_MENU)
        self._cancelb.SetBitmap(cbmp)
        self._cancelb.Refresh()

    def CancelSearch(self):
        """Cancel the currently running search"""
        if self._job is not None:
            self._job.Cancel()
        self._cancelb.Disable()

    def StartSearch(self, searchmeth, *args, **kwargs):
        """Start a search with the given method and display the results
        @param searchmeth: callable
        @param *args: positional arguments to pass to searchmeth
        @param **kwargs: keyword arguments to pass to searchmeth

        """
        self._meth = searchmeth

        if self._job is not None:
            self._job.Cancel()

        self._list.Clear()
        self._job = eclib.TaskObject(self._list, searchmeth, *args, **kwargs)
        ed_thread.EdThreadPool().QueueJob(self._job.DoTask)
        self._cancelb.Enable()

#-----------------------------------------------------------------------------#

class SearchResultList(eclib.OutputBuffer):
    """Outputbuffer for listing matching lines from the search results that
    a L{ebmlib.SearchEngine} dispatches. The matching lines are turned into
    hotspots that allow them to be clicked on for instant navigation to the
    matching line.

    """
    STY_SEARCH_MATCH = eclib.OPB_STYLE_MAX + 1
    RE_FIND_MATCH = re.compile('(.+) \(([0-9]+)\)\: .+')
    def __init__(self, parent):
        super(SearchResultList, self).__init__(parent)

        # Attributes
        self._files = 0

        # Setup
        font = Profile_Get('FONT1', 'font', wx.Font(11, wx.FONTFAMILY_MODERN, 
                                                    wx.FONTSTYLE_NORMAL, 
                                                    wx.FONTWEIGHT_NORMAL))
        self.SetFont(font)
        style = (font.GetFaceName(), font.GetPointSize(), "#FFFFFF")
        self.StyleSetSpec(SearchResultList.STY_SEARCH_MATCH,
                          "face:%s,size:%d,fore:#000000,back:%s" % style)
        self.StyleSetHotSpot(SearchResultList.STY_SEARCH_MATCH, True)

    def AppendUpdate(self, value):
        """Do a little filtering of updates as they arrive
        @param value: search result from search method

        """
        if isinstance(value, basestring):
            # Regular search result
            super(SearchResultList, self).AppendUpdate(value)
        else:
            # Search in a new file has started
            self._files += 1

            # Only updated status bar for every 10 files to reduce the overhead
            # of updating the status bar and to improve performance of search.
            if self._files == 1 or \
               ((self._files / 10) > ((self._files-1) / 10)): 
                ed_msg.PostMessage(ed_msg.EDMSG_UI_SB_TXT,
                                   (ed_glob.SB_INFO,
                                   _("Searching in: %s") % value[1]))

    def ApplyStyles(self, start, txt):
        """Set a hotspot for each search result
        Search matches strings should be formatted as follows
        /file/name (line) match string
        @param start: long
        @param txt: string

        """
        self.StartStyling(start, 0x1f)
        if re.match(SearchResultList.RE_FIND_MATCH, txt):
            self.SetStyling(len(txt), SearchResultList.STY_SEARCH_MATCH)
        else:
            self.SetStyling(len(txt), eclib.OPB_STYLE_DEFAULT)

    def Clear(self):
        """Override OutputBuffer.Clear"""
        self._files = 0
        super(SearchResultList, self).Clear()

    def DoHotSpotClicked(self, pos, line):
        """Handle a click on a hotspot and open the file to the matched line
        @param pos: long
        @param line: int

        """
        txt = self.GetLine(line)
        match = re.match(SearchResultList.RE_FIND_MATCH, txt)
        if match is not None:
            groups = match.groups()
            if len(groups) == 2:
                fname, lnum = groups
                if lnum.isdigit():
                    lnum = int(lnum) - 1
                else:
                    lnum = 0
                self._OpenToLine(fname, lnum)

    def GetFileCount(self):
        """Get the number of files searched in the previous/current search job.
        @return: int

        """
        return self._files

    def SetStartEndText(self, txt):
        """Add a start task or end task message to the output. Styled in
        Info style.
        @param txt: text to add

        """
        self.SetReadOnly(False)
        cpos = self.GetLength()
        self.AppendText(txt)
        self.StartStyling(cpos, 0x1f)
        self.SetStyling(self.GetLength() - cpos, eclib.OPB_STYLE_INFO)
        self.SetReadOnly(True)

    @staticmethod
    def _OpenToLine(fname, line):
        """Open the given filename to the given line number
        @param fname: File name to open, relative paths will be converted to abs
                      paths.
        @param line: Line number to set the cursor to after opening the file

        """
        mainw = wx.GetApp().GetActiveWindow()
        nbook = mainw.GetNotebook()
        buffers = [ page.GetFileName() for page in nbook.GetTextControls() ]
        if fname in buffers:
            page = buffers.index(fname)
            nbook.ChangePage(page)
            cpage = nbook.GetPage(page)
        else:
            nbook.OnDrop([fname])
            cpage = nbook.GetPage(nbook.GetSelection())

        cpage.GotoLine(line)
        cpage.SetFocus()

#-----------------------------------------------------------------------------#