redmine /app/helpers/application_helper.rb

Language Ruby Lines 1241
MD5 Hash 88269c5e7dde314c884e01e218fac07e Estimated Cost $26,280 (why?)
Repository https://bitbucket.org/eimajenthat/redmine.git View Raw File View Project SPDX
   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
# encoding: utf-8
#
# Redmine - project management software
# Copyright (C) 2006-2013  Jean-Philippe Lang
#
# 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

require 'forwardable'
require 'cgi'

module ApplicationHelper
  include Redmine::WikiFormatting::Macros::Definitions
  include Redmine::I18n
  include GravatarHelper::PublicMethods
  include Redmine::Pagination::Helper

  extend Forwardable
  def_delegators :wiki_helper, :wikitoolbar_for, :heads_for_wiki_formatter

  # Return true if user is authorized for controller/action, otherwise false
  def authorize_for(controller, action)
    User.current.allowed_to?({:controller => controller, :action => action}, @project)
  end

  # Display a link if user is authorized
  #
  # @param [String] name Anchor text (passed to link_to)
  # @param [Hash] options Hash params. This will checked by authorize_for to see if the user is authorized
  # @param [optional, Hash] html_options Options passed to link_to
  # @param [optional, Hash] parameters_for_method_reference Extra parameters for link_to
  def link_to_if_authorized(name, options = {}, html_options = nil, *parameters_for_method_reference)
    link_to(name, options, html_options, *parameters_for_method_reference) if authorize_for(options[:controller] || params[:controller], options[:action])
  end

  # Displays a link to user's account page if active
  def link_to_user(user, options={})
    if user.is_a?(User)
      name = h(user.name(options[:format]))
      if user.active? || (User.current.admin? && user.logged?)
        link_to name, user_path(user), :class => user.css_classes
      else
        name
      end
    else
      h(user.to_s)
    end
  end

  # Displays a link to +issue+ with its subject.
  # Examples:
  #
  #   link_to_issue(issue)                        # => Defect #6: This is the subject
  #   link_to_issue(issue, :truncate => 6)        # => Defect #6: This i...
  #   link_to_issue(issue, :subject => false)     # => Defect #6
  #   link_to_issue(issue, :project => true)      # => Foo - Defect #6
  #   link_to_issue(issue, :subject => false, :tracker => false)     # => #6
  #
  def link_to_issue(issue, options={})
    title = nil
    subject = nil
    text = options[:tracker] == false ? "##{issue.id}" : "#{issue.tracker} ##{issue.id}"
    if options[:subject] == false
      title = truncate(issue.subject, :length => 60)
    else
      subject = issue.subject
      if options[:truncate]
        subject = truncate(subject, :length => options[:truncate])
      end
    end
    s = link_to text, issue_path(issue), :class => issue.css_classes, :title => title
    s << h(": #{subject}") if subject
    s = h("#{issue.project} - ") + s if options[:project]
    s
  end

  # Generates a link to an attachment.
  # Options:
  # * :text - Link text (default to attachment filename)
  # * :download - Force download (default: false)
  def link_to_attachment(attachment, options={})
    text = options.delete(:text) || attachment.filename
    route_method = options.delete(:download) ? :download_named_attachment_path : :named_attachment_path
    html_options = options.slice!(:only_path)
    url = send(route_method, attachment, attachment.filename, options)
    link_to text, url, html_options
  end

  # Generates a link to a SCM revision
  # Options:
  # * :text - Link text (default to the formatted revision)
  def link_to_revision(revision, repository, options={})
    if repository.is_a?(Project)
      repository = repository.repository
    end
    text = options.delete(:text) || format_revision(revision)
    rev = revision.respond_to?(:identifier) ? revision.identifier : revision
    link_to(
        h(text),
        {:controller => 'repositories', :action => 'revision', :id => repository.project, :repository_id => repository.identifier_param, :rev => rev},
        :title => l(:label_revision_id, format_revision(revision))
      )
  end

  # Generates a link to a message
  def link_to_message(message, options={}, html_options = nil)
    link_to(
      truncate(message.subject, :length => 60),
      board_message_path(message.board_id, message.parent_id || message.id, {
        :r => (message.parent_id && message.id),
        :anchor => (message.parent_id ? "message-#{message.id}" : nil)
      }.merge(options)),
      html_options
    )
  end

  # Generates a link to a project if active
  # Examples:
  #
  #   link_to_project(project)                          # => link to the specified project overview
  #   link_to_project(project, {:only_path => false}, :class => "project") # => 3rd arg adds html options
  #   link_to_project(project, {}, :class => "project") # => html options with default url (project overview)
  #
  def link_to_project(project, options={}, html_options = nil)
    if project.archived?
      h(project.name)
    elsif options.key?(:action)
      ActiveSupport::Deprecation.warn "#link_to_project with :action option is deprecated and will be removed in Redmine 3.0."
      url = {:controller => 'projects', :action => 'show', :id => project}.merge(options)
      link_to project.name, url, html_options
    else
      link_to project.name, project_path(project, options), html_options
    end
  end

  # Generates a link to a project settings if active
  def link_to_project_settings(project, options={}, html_options=nil)
    if project.active?
      link_to project.name, settings_project_path(project, options), html_options
    elsif project.archived?
      h(project.name)
    else
      link_to project.name, project_path(project, options), html_options
    end
  end

  def wiki_page_path(page, options={})
    url_for({:controller => 'wiki', :action => 'show', :project_id => page.project, :id => page.title}.merge(options))
  end

  def thumbnail_tag(attachment)
    link_to image_tag(thumbnail_path(attachment)),
      named_attachment_path(attachment, attachment.filename),
      :title => attachment.filename
  end

  def toggle_link(name, id, options={})
    onclick = "$('##{id}').toggle(); "
    onclick << (options[:focus] ? "$('##{options[:focus]}').focus(); " : "this.blur(); ")
    onclick << "return false;"
    link_to(name, "#", :onclick => onclick)
  end

  def image_to_function(name, function, html_options = {})
    html_options.symbolize_keys!
    tag(:input, html_options.merge({
        :type => "image", :src => image_path(name),
        :onclick => (html_options[:onclick] ? "#{html_options[:onclick]}; " : "") + "#{function};"
        }))
  end

  def format_activity_title(text)
    h(truncate_single_line(text, :length => 100))
  end

  def format_activity_day(date)
    date == User.current.today ? l(:label_today).titleize : format_date(date)
  end

  def format_activity_description(text)
    h(truncate(text.to_s, :length => 120).gsub(%r{[\r\n]*<(pre|code)>.*$}m, '...')
       ).gsub(/[\r\n]+/, "<br />").html_safe
  end

  def format_version_name(version)
    if version.project == @project
    	h(version)
    else
      h("#{version.project} - #{version}")
    end
  end

  def due_date_distance_in_words(date)
    if date
      l((date < Date.today ? :label_roadmap_overdue : :label_roadmap_due_in), distance_of_date_in_words(Date.today, date))
    end
  end

  # Renders a tree of projects as a nested set of unordered lists
  # The given collection may be a subset of the whole project tree
  # (eg. some intermediate nodes are private and can not be seen)
  def render_project_nested_lists(projects)
    s = ''
    if projects.any?
      ancestors = []
      original_project = @project
      projects.sort_by(&:lft).each do |project|
        # set the project environment to please macros.
        @project = project
        if (ancestors.empty? || project.is_descendant_of?(ancestors.last))
          s << "<ul class='projects #{ ancestors.empty? ? 'root' : nil}'>\n"
        else
          ancestors.pop
          s << "</li>"
          while (ancestors.any? && !project.is_descendant_of?(ancestors.last))
            ancestors.pop
            s << "</ul></li>\n"
          end
        end
        classes = (ancestors.empty? ? 'root' : 'child')
        s << "<li class='#{classes}'><div class='#{classes}'>"
        s << h(block_given? ? yield(project) : project.name)
        s << "</div>\n"
        ancestors << project
      end
      s << ("</li></ul>\n" * ancestors.size)
      @project = original_project
    end
    s.html_safe
  end

  def render_page_hierarchy(pages, node=nil, options={})
    content = ''
    if pages[node]
      content << "<ul class=\"pages-hierarchy\">\n"
      pages[node].each do |page|
        content << "<li>"
        content << link_to(h(page.pretty_title), {:controller => 'wiki', :action => 'show', :project_id => page.project, :id => page.title, :version => nil},
                           :title => (options[:timestamp] && page.updated_on ? l(:label_updated_time, distance_of_time_in_words(Time.now, page.updated_on)) : nil))
        content << "\n" + render_page_hierarchy(pages, page.id, options) if pages[page.id]
        content << "</li>\n"
      end
      content << "</ul>\n"
    end
    content.html_safe
  end

  # Renders flash messages
  def render_flash_messages
    s = ''
    flash.each do |k,v|
      s << content_tag('div', v.html_safe, :class => "flash #{k}", :id => "flash_#{k}")
    end
    s.html_safe
  end

  # Renders tabs and their content
  def render_tabs(tabs)
    if tabs.any?
      render :partial => 'common/tabs', :locals => {:tabs => tabs}
    else
      content_tag 'p', l(:label_no_data), :class => "nodata"
    end
  end

  # Renders the project quick-jump box
  def render_project_jump_box
    return unless User.current.logged?
    projects = User.current.memberships.collect(&:project).compact.select(&:active?).uniq
    if projects.any?
      options =
        ("<option value=''>#{ l(:label_jump_to_a_project) }</option>" +
         '<option value="" disabled="disabled">---</option>').html_safe

      options << project_tree_options_for_select(projects, :selected => @project) do |p|
        { :value => project_path(:id => p, :jump => current_menu_item) }
      end

      select_tag('project_quick_jump_box', options, :onchange => 'if (this.value != \'\') { window.location = this.value; }')
    end
  end

  def project_tree_options_for_select(projects, options = {})
    s = ''
    project_tree(projects) do |project, level|
      name_prefix = (level > 0 ? '&nbsp;' * 2 * level + '&#187; ' : '').html_safe
      tag_options = {:value => project.id}
      if project == options[:selected] || (options[:selected].respond_to?(:include?) && options[:selected].include?(project))
        tag_options[:selected] = 'selected'
      else
        tag_options[:selected] = nil
      end
      tag_options.merge!(yield(project)) if block_given?
      s << content_tag('option', name_prefix + h(project), tag_options)
    end
    s.html_safe
  end

  # Yields the given block for each project with its level in the tree
  #
  # Wrapper for Project#project_tree
  def project_tree(projects, &block)
    Project.project_tree(projects, &block)
  end

  def principals_check_box_tags(name, principals)
    s = ''
    principals.each do |principal|
      s << "<label>#{ check_box_tag name, principal.id, false } #{h principal}</label>\n"
    end
    s.html_safe
  end

  # Returns a string for users/groups option tags
  def principals_options_for_select(collection, selected=nil)
    s = ''
    if collection.include?(User.current)
      s << content_tag('option', "<< #{l(:label_me)} >>", :value => User.current.id)
    end
    groups = ''
    collection.sort.each do |element|
      selected_attribute = ' selected="selected"' if option_value_selected?(element, selected)
      (element.is_a?(Group) ? groups : s) << %(<option value="#{element.id}"#{selected_attribute}>#{h element.name}</option>)
    end
    unless groups.empty?
      s << %(<optgroup label="#{h(l(:label_group_plural))}">#{groups}</optgroup>)
    end
    s.html_safe
  end

  # Options for the new membership projects combo-box
  def options_for_membership_project_select(principal, projects)
    options = content_tag('option', "--- #{l(:actionview_instancetag_blank_option)} ---")
    options << project_tree_options_for_select(projects) do |p|
      {:disabled => principal.projects.include?(p)}
    end
    options
  end

  # Truncates and returns the string as a single line
  def truncate_single_line(string, *args)
    truncate(string.to_s, *args).gsub(%r{[\r\n]+}m, ' ')
  end

  # Truncates at line break after 250 characters or options[:length]
  def truncate_lines(string, options={})
    length = options[:length] || 250
    if string.to_s =~ /\A(.{#{length}}.*?)$/m
      "#{$1}..."
    else
      string
    end
  end

  def anchor(text)
    text.to_s.gsub(' ', '_')
  end

  def html_hours(text)
    text.gsub(%r{(\d+)\.(\d+)}, '<span class="hours hours-int">\1</span><span class="hours hours-dec">.\2</span>').html_safe
  end

  def authoring(created, author, options={})
    l(options[:label] || :label_added_time_by, :author => link_to_user(author), :age => time_tag(created)).html_safe
  end

  def time_tag(time)
    text = distance_of_time_in_words(Time.now, time)
    if @project
      link_to(text, {:controller => 'activities', :action => 'index', :id => @project, :from => User.current.time_to_date(time)}, :title => format_time(time))
    else
      content_tag('acronym', text, :title => format_time(time))
    end
  end

  def syntax_highlight_lines(name, content)
    lines = []
    syntax_highlight(name, content).each_line { |line| lines << line }
    lines
  end

  def syntax_highlight(name, content)
    Redmine::SyntaxHighlighting.highlight_by_filename(content, name)
  end

  def to_path_param(path)
    str = path.to_s.split(%r{[/\\]}).select{|p| !p.blank?}.join("/")
    str.blank? ? nil : str
  end

  def reorder_links(name, url, method = :post)
    link_to(image_tag('2uparrow.png', :alt => l(:label_sort_highest)),
            url.merge({"#{name}[move_to]" => 'highest'}),
            :method => method, :title => l(:label_sort_highest)) +
    link_to(image_tag('1uparrow.png',   :alt => l(:label_sort_higher)),
            url.merge({"#{name}[move_to]" => 'higher'}),
           :method => method, :title => l(:label_sort_higher)) +
    link_to(image_tag('1downarrow.png', :alt => l(:label_sort_lower)),
            url.merge({"#{name}[move_to]" => 'lower'}),
            :method => method, :title => l(:label_sort_lower)) +
    link_to(image_tag('2downarrow.png', :alt => l(:label_sort_lowest)),
            url.merge({"#{name}[move_to]" => 'lowest'}),
           :method => method, :title => l(:label_sort_lowest))
  end

  def breadcrumb(*args)
    elements = args.flatten
    elements.any? ? content_tag('p', (args.join(" \xc2\xbb ") + " \xc2\xbb ").html_safe, :class => 'breadcrumb') : nil
  end

  def other_formats_links(&block)
    concat('<p class="other-formats">'.html_safe + l(:label_export_to))
    yield Redmine::Views::OtherFormatsBuilder.new(self)
    concat('</p>'.html_safe)
  end

  def page_header_title
    if @project.nil? || @project.new_record?
      h(Setting.app_title)
    else
      b = []
      ancestors = (@project.root? ? [] : @project.ancestors.visible.all)
      if ancestors.any?
        root = ancestors.shift
        b << link_to_project(root, {:jump => current_menu_item}, :class => 'root')
        if ancestors.size > 2
          b << "\xe2\x80\xa6"
          ancestors = ancestors[-2, 2]
        end
        b += ancestors.collect {|p| link_to_project(p, {:jump => current_menu_item}, :class => 'ancestor') }
      end
      b << h(@project)
      b.join(" \xc2\xbb ").html_safe
    end
  end

  def html_title(*args)
    if args.empty?
      title = @html_title || []
      title << @project.name if @project
      title << Setting.app_title unless Setting.app_title == title.last
      title.select {|t| !t.blank? }.join(' - ')
    else
      @html_title ||= []
      @html_title += args
    end
  end

  # Returns the theme, controller name, and action as css classes for the
  # HTML body.
  def body_css_classes
    css = []
    if theme = Redmine::Themes.theme(Setting.ui_theme)
      css << 'theme-' + theme.name
    end

    css << 'controller-' + controller_name
    css << 'action-' + action_name
    css.join(' ')
  end

  def accesskey(s)
    Redmine::AccessKeys.key_for s
  end

  # Formats text according to system settings.
  # 2 ways to call this method:
  # * with a String: textilizable(text, options)
  # * with an object and one of its attribute: textilizable(issue, :description, options)
  def textilizable(*args)
    options = args.last.is_a?(Hash) ? args.pop : {}
    case args.size
    when 1
      obj = options[:object]
      text = args.shift
    when 2
      obj = args.shift
      attr = args.shift
      text = obj.send(attr).to_s
    else
      raise ArgumentError, 'invalid arguments to textilizable'
    end
    return '' if text.blank?
    project = options[:project] || @project || (obj && obj.respond_to?(:project) ? obj.project : nil)
    only_path = options.delete(:only_path) == false ? false : true

    text = text.dup
    macros = catch_macros(text)
    text = Redmine::WikiFormatting.to_html(Setting.text_formatting, text, :object => obj, :attribute => attr)

    @parsed_headings = []
    @heading_anchors = {}
    @current_section = 0 if options[:edit_section_links]

    parse_sections(text, project, obj, attr, only_path, options)
    text = parse_non_pre_blocks(text, obj, macros) do |text|
      [:parse_inline_attachments, :parse_wiki_links, :parse_redmine_links].each do |method_name|
        send method_name, text, project, obj, attr, only_path, options
      end
    end
    parse_headings(text, project, obj, attr, only_path, options)

    if @parsed_headings.any?
      replace_toc(text, @parsed_headings)
    end

    text.html_safe
  end

  def parse_non_pre_blocks(text, obj, macros)
    s = StringScanner.new(text)
    tags = []
    parsed = ''
    while !s.eos?
      s.scan(/(.*?)(<(\/)?(pre|code)(.*?)>|\z)/im)
      text, full_tag, closing, tag = s[1], s[2], s[3], s[4]
      if tags.empty?
        yield text
        inject_macros(text, obj, macros) if macros.any?
      else
        inject_macros(text, obj, macros, false) if macros.any?
      end
      parsed << text
      if tag
        if closing
          if tags.last == tag.downcase
            tags.pop
          end
        else
          tags << tag.downcase
        end
        parsed << full_tag
      end
    end
    # Close any non closing tags
    while tag = tags.pop
      parsed << "</#{tag}>"
    end
    parsed
  end

  def parse_inline_attachments(text, project, obj, attr, only_path, options)
    # when using an image link, try to use an attachment, if possible
    attachments = options[:attachments] || []
    attachments += obj.attachments if obj.respond_to?(:attachments)
    if attachments.present?
      text.gsub!(/src="([^\/"]+\.(bmp|gif|jpg|jpe|jpeg|png))"(\s+alt="([^"]*)")?/i) do |m|
        filename, ext, alt, alttext = $1.downcase, $2, $3, $4
        # search for the picture in attachments
        if found = Attachment.latest_attach(attachments, filename)
          image_url = download_named_attachment_path(found, found.filename, :only_path => only_path)
          desc = found.description.to_s.gsub('"', '')
          if !desc.blank? && alttext.blank?
            alt = " title=\"#{desc}\" alt=\"#{desc}\""
          end
          "src=\"#{image_url}\"#{alt}"
        else
          m
        end
      end
    end
  end

  # Wiki links
  #
  # Examples:
  #   [[mypage]]
  #   [[mypage|mytext]]
  # wiki links can refer other project wikis, using project name or identifier:
  #   [[project:]] -> wiki starting page
  #   [[project:|mytext]]
  #   [[project:mypage]]
  #   [[project:mypage|mytext]]
  def parse_wiki_links(text, project, obj, attr, only_path, options)
    text.gsub!(/(!)?(\[\[([^\]\n\|]+)(\|([^\]\n\|]+))?\]\])/) do |m|
      link_project = project
      esc, all, page, title = $1, $2, $3, $5
      if esc.nil?
        if page =~ /^([^\:]+)\:(.*)$/
          link_project = Project.find_by_identifier($1) || Project.find_by_name($1)
          page = $2
          title ||= $1 if page.blank?
        end

        if link_project && link_project.wiki
          # extract anchor
          anchor = nil
          if page =~ /^(.+?)\#(.+)$/
            page, anchor = $1, $2
          end
          anchor = sanitize_anchor_name(anchor) if anchor.present?
          # check if page exists
          wiki_page = link_project.wiki.find_page(page)
          url = if anchor.present? && wiki_page.present? && (obj.is_a?(WikiContent) || obj.is_a?(WikiContent::Version)) && obj.page == wiki_page
            "##{anchor}"
          else
            case options[:wiki_links]
            when :local; "#{page.present? ? Wiki.titleize(page) : ''}.html" + (anchor.present? ? "##{anchor}" : '')
            when :anchor; "##{page.present? ? Wiki.titleize(page) : title}" + (anchor.present? ? "_#{anchor}" : '') # used for single-file wiki export
            else
              wiki_page_id = page.present? ? Wiki.titleize(page) : nil
              parent = wiki_page.nil? && obj.is_a?(WikiContent) && obj.page && project == link_project ? obj.page.title : nil
              url_for(:only_path => only_path, :controller => 'wiki', :action => 'show', :project_id => link_project, 
               :id => wiki_page_id, :version => nil, :anchor => anchor, :parent => parent)
            end
          end
          link_to(title.present? ? title.html_safe : h(page), url, :class => ('wiki-page' + (wiki_page ? '' : ' new')))
        else
          # project or wiki doesn't exist
          all
        end
      else
        all
      end
    end
  end

  # Redmine links
  #
  # Examples:
  #   Issues:
  #     #52 -> Link to issue #52
  #   Changesets:
  #     r52 -> Link to revision 52
  #     commit:a85130f -> Link to scmid starting with a85130f
  #   Documents:
  #     document#17 -> Link to document with id 17
  #     document:Greetings -> Link to the document with title "Greetings"
  #     document:"Some document" -> Link to the document with title "Some document"
  #   Versions:
  #     version#3 -> Link to version with id 3
  #     version:1.0.0 -> Link to version named "1.0.0"
  #     version:"1.0 beta 2" -> Link to version named "1.0 beta 2"
  #   Attachments:
  #     attachment:file.zip -> Link to the attachment of the current object named file.zip
  #   Source files:
  #     source:some/file -> Link to the file located at /some/file in the project's repository
  #     source:some/file@52 -> Link to the file's revision 52
  #     source:some/file#L120 -> Link to line 120 of the file
  #     source:some/file@52#L120 -> Link to line 120 of the file's revision 52
  #     export:some/file -> Force the download of the file
  #   Forum messages:
  #     message#1218 -> Link to message with id 1218
  #
  #   Links can refer other objects from other projects, using project identifier:
  #     identifier:r52
  #     identifier:document:"Some document"
  #     identifier:version:1.0.0
  #     identifier:source:some/file
  def parse_redmine_links(text, default_project, obj, attr, only_path, options)
    text.gsub!(%r{([\s\(,\-\[\>]|^)(!)?(([a-z0-9\-_]+):)?(attachment|document|version|forum|news|message|project|commit|source|export)?(((#)|((([a-z0-9\-]+)\|)?(r)))((\d+)((#note)?-(\d+))?)|(:)([^"\s<>][^\s<>]*?|"[^"]+?"))(?=(?=[[:punct:]][^A-Za-z0-9_/])|,|\s|\]|<|$)}) do |m|
      leading, esc, project_prefix, project_identifier, prefix, repo_prefix, repo_identifier, sep, identifier, comment_suffix, comment_id = $1, $2, $3, $4, $5, $10, $11, $8 || $12 || $18, $14 || $19, $15, $17
      link = nil
      project = default_project
      if project_identifier
        project = Project.visible.find_by_identifier(project_identifier)
      end
      if esc.nil?
        if prefix.nil? && sep == 'r'
          if project
            repository = nil
            if repo_identifier
              repository = project.repositories.detect {|repo| repo.identifier == repo_identifier}
            else
              repository = project.repository
            end
            # project.changesets.visible raises an SQL error because of a double join on repositories
            if repository && (changeset = Changeset.visible.find_by_repository_id_and_revision(repository.id, identifier))
              link = link_to(h("#{project_prefix}#{repo_prefix}r#{identifier}"), {:only_path => only_path, :controller => 'repositories', :action => 'revision', :id => project, :repository_id => repository.identifier_param, :rev => changeset.revision},
                                        :class => 'changeset',
                                        :title => truncate_single_line(changeset.comments, :length => 100))
            end
          end
        elsif sep == '#'
          oid = identifier.to_i
          case prefix
          when nil
            if oid.to_s == identifier && issue = Issue.visible.find_by_id(oid, :include => :status)
              anchor = comment_id ? "note-#{comment_id}" : nil
              link = link_to("##{oid}", {:only_path => only_path, :controller => 'issues', :action => 'show', :id => oid, :anchor => anchor},
                                        :class => issue.css_classes,
                                        :title => "#{truncate(issue.subject, :length => 100)} (#{issue.status.name})")
            end
          when 'document'
            if document = Document.visible.find_by_id(oid)
              link = link_to h(document.title), {:only_path => only_path, :controller => 'documents', :action => 'show', :id => document},
                                                :class => 'document'
            end
          when 'version'
            if version = Version.visible.find_by_id(oid)
              link = link_to h(version.name), {:only_path => only_path, :controller => 'versions', :action => 'show', :id => version},
                                              :class => 'version'
            end
          when 'message'
            if message = Message.visible.find_by_id(oid, :include => :parent)
              link = link_to_message(message, {:only_path => only_path}, :class => 'message')
            end
          when 'forum'
            if board = Board.visible.find_by_id(oid)
              link = link_to h(board.name), {:only_path => only_path, :controller => 'boards', :action => 'show', :id => board, :project_id => board.project},
                                             :class => 'board'
            end
          when 'news'
            if news = News.visible.find_by_id(oid)
              link = link_to h(news.title), {:only_path => only_path, :controller => 'news', :action => 'show', :id => news},
                                            :class => 'news'
            end
          when 'project'
            if p = Project.visible.find_by_id(oid)
              link = link_to_project(p, {:only_path => only_path}, :class => 'project')
            end
          end
        elsif sep == ':'
          # removes the double quotes if any
          name = identifier.gsub(%r{^"(.*)"$}, "\\1")
          case prefix
          when 'document'
            if project && document = project.documents.visible.find_by_title(name)
              link = link_to h(document.title), {:only_path => only_path, :controller => 'documents', :action => 'show', :id => document},
                                                :class => 'document'
            end
          when 'version'
            if project && version = project.versions.visible.find_by_name(name)
              link = link_to h(version.name), {:only_path => only_path, :controller => 'versions', :action => 'show', :id => version},
                                              :class => 'version'
            end
          when 'forum'
            if project && board = project.boards.visible.find_by_name(name)
              link = link_to h(board.name), {:only_path => only_path, :controller => 'boards', :action => 'show', :id => board, :project_id => board.project},
                                             :class => 'board'
            end
          when 'news'
            if project && news = project.news.visible.find_by_title(name)
              link = link_to h(news.title), {:only_path => only_path, :controller => 'news', :action => 'show', :id => news},
                                            :class => 'news'
            end
          when 'commit', 'source', 'export'
            if project
              repository = nil
              if name =~ %r{^(([a-z0-9\-]+)\|)(.+)$}
                repo_prefix, repo_identifier, name = $1, $2, $3
                repository = project.repositories.detect {|repo| repo.identifier == repo_identifier}
              else
                repository = project.repository
              end
              if prefix == 'commit'
                if repository && (changeset = Changeset.visible.where("repository_id = ? AND scmid LIKE ?", repository.id, "#{name}%").first)
                  link = link_to h("#{project_prefix}#{repo_prefix}#{name}"), {:only_path => only_path, :controller => 'repositories', :action => 'revision', :id => project, :repository_id => repository.identifier_param, :rev => changeset.identifier},
                                               :class => 'changeset',
                                               :title => truncate_single_line(h(changeset.comments), :length => 100)
                end
              else
                if repository && User.current.allowed_to?(:browse_repository, project)
                  name =~ %r{^[/\\]*(.*?)(@([^/\\@]+?))?(#(L\d+))?$}
                  path, rev, anchor = $1, $3, $5
                  link = link_to h("#{project_prefix}#{prefix}:#{repo_prefix}#{name}"), {:controller => 'repositories', :action => (prefix == 'export' ? 'raw' : 'entry'), :id => project, :repository_id => repository.identifier_param,
                                                          :path => to_path_param(path),
                                                          :rev => rev,
                                                          :anchor => anchor},
                                                         :class => (prefix == 'export' ? 'source download' : 'source')
                end
              end
              repo_prefix = nil
            end
          when 'attachment'
            attachments = options[:attachments] || (obj && obj.respond_to?(:attachments) ? obj.attachments : nil)
            if attachments && attachment = Attachment.latest_attach(attachments, name)
              link = link_to_attachment(attachment, :only_path => only_path, :download => true, :class => 'attachment')
            end
          when 'project'
            if p = Project.visible.where("identifier = :s OR LOWER(name) = :s", :s => name.downcase).first
              link = link_to_project(p, {:only_path => only_path}, :class => 'project')
            end
          end
        end
      end
      (leading + (link || "#{project_prefix}#{prefix}#{repo_prefix}#{sep}#{identifier}#{comment_suffix}"))
    end
  end

  HEADING_RE = /(<h(\d)( [^>]+)?>(.+?)<\/h(\d)>)/i unless const_defined?(:HEADING_RE)

  def parse_sections(text, project, obj, attr, only_path, options)
    return unless options[:edit_section_links]
    text.gsub!(HEADING_RE) do
      heading = $1
      @current_section += 1
      if @current_section > 1
        content_tag('div',
          link_to(image_tag('edit.png'), options[:edit_section_links].merge(:section => @current_section)),
          :class => 'contextual',
          :title => l(:button_edit_section)) + heading.html_safe
      else
        heading
      end
    end
  end

  # Headings and TOC
  # Adds ids and links to headings unless options[:headings] is set to false
  def parse_headings(text, project, obj, attr, only_path, options)
    return if options[:headings] == false

    text.gsub!(HEADING_RE) do
      level, attrs, content = $2.to_i, $3, $4
      item = strip_tags(content).strip
      anchor = sanitize_anchor_name(item)
      # used for single-file wiki export
      anchor = "#{obj.page.title}_#{anchor}" if options[:wiki_links] == :anchor && (obj.is_a?(WikiContent) || obj.is_a?(WikiContent::Version))
      @heading_anchors[anchor] ||= 0
      idx = (@heading_anchors[anchor] += 1)
      if idx > 1
        anchor = "#{anchor}-#{idx}"
      end
      @parsed_headings << [level, anchor, item]
      "<a name=\"#{anchor}\"></a>\n<h#{level} #{attrs}>#{content}<a href=\"##{anchor}\" class=\"wiki-anchor\">&para;</a></h#{level}>"
    end
  end

  MACROS_RE = /(
                (!)?                        # escaping
                (
                \{\{                        # opening tag
                ([\w]+)                     # macro name
                (\(([^\n\r]*?)\))?          # optional arguments
                ([\n\r].*?[\n\r])?          # optional block of text
                \}\}                        # closing tag
                )
               )/mx unless const_defined?(:MACROS_RE)

  MACRO_SUB_RE = /(
                  \{\{
                  macro\((\d+)\)
                  \}\}
                  )/x unless const_defined?(:MACRO_SUB_RE)

  # Extracts macros from text
  def catch_macros(text)
    macros = {}
    text.gsub!(MACROS_RE) do
      all, macro = $1, $4.downcase
      if macro_exists?(macro) || all =~ MACRO_SUB_RE
        index = macros.size
        macros[index] = all
        "{{macro(#{index})}}"
      else
        all
      end
    end
    macros
  end

  # Executes and replaces macros in text
  def inject_macros(text, obj, macros, execute=true)
    text.gsub!(MACRO_SUB_RE) do
      all, index = $1, $2.to_i
      orig = macros.delete(index)
      if execute && orig && orig =~ MACROS_RE
        esc, all, macro, args, block = $2, $3, $4.downcase, $6.to_s, $7.try(:strip)
        if esc.nil?
          h(exec_macro(macro, obj, args, block) || all)
        else
          h(all)
        end
      elsif orig
        h(orig)
      else
        h(all)
      end
    end
  end

  TOC_RE = /<p>\{\{([<>]?)toc\}\}<\/p>/i unless const_defined?(:TOC_RE)

  # Renders the TOC with given headings
  def replace_toc(text, headings)
    text.gsub!(TOC_RE) do
      # Keep only the 4 first levels
      headings = headings.select{|level, anchor, item| level <= 4}
      if headings.empty?
        ''
      else
        div_class = 'toc'
        div_class << ' right' if $1 == '>'
        div_class << ' left' if $1 == '<'
        out = "<ul class=\"#{div_class}\"><li>"
        root = headings.map(&:first).min
        current = root
        started = false
        headings.each do |level, anchor, item|
          if level > current
            out << '<ul><li>' * (level - current)
          elsif level < current
            out << "</li></ul>\n" * (current - level) + "</li><li>"
          elsif started
            out << '</li><li>'
          end
          out << "<a href=\"##{anchor}\">#{item}</a>"
          current = level
          started = true
        end
        out << '</li></ul>' * (current - root)
        out << '</li></ul>'
      end
    end
  end

  # Same as Rails' simple_format helper without using paragraphs
  def simple_format_without_paragraph(text)
    text.to_s.
      gsub(/\r\n?/, "\n").                    # \r\n and \r -> \n
      gsub(/\n\n+/, "<br /><br />").          # 2+ newline  -> 2 br
      gsub(/([^\n]\n)(?=[^\n])/, '\1<br />'). # 1 newline   -> br
      html_safe
  end

  def lang_options_for_select(blank=true)
    (blank ? [["(auto)", ""]] : []) + languages_options
  end

  def label_tag_for(name, option_tags = nil, options = {})
    label_text = l(("field_"+field.to_s.gsub(/\_id$/, "")).to_sym) + (options.delete(:required) ? @template.content_tag("span", " *", :class => "required"): "")
    content_tag("label", label_text)
  end

  def labelled_form_for(*args, &proc)
    args << {} unless args.last.is_a?(Hash)
    options = args.last
    if args.first.is_a?(Symbol)
      options.merge!(:as => args.shift)
    end
    options.merge!({:builder => Redmine::Views::LabelledFormBuilder})
    form_for(*args, &proc)
  end

  def labelled_fields_for(*args, &proc)
    args << {} unless args.last.is_a?(Hash)
    options = args.last
    options.merge!({:builder => Redmine::Views::LabelledFormBuilder})
    fields_for(*args, &proc)
  end

  def labelled_remote_form_for(*args, &proc)
    ActiveSupport::Deprecation.warn "ApplicationHelper#labelled_remote_form_for is deprecated and will be removed in Redmine 2.2."
    args << {} unless args.last.is_a?(Hash)
    options = args.last
    options.merge!({:builder => Redmine::Views::LabelledFormBuilder, :remote => true})
    form_for(*args, &proc)
  end

  def error_messages_for(*objects)
    html = ""
    objects = objects.map {|o| o.is_a?(String) ? instance_variable_get("@#{o}") : o}.compact
    errors = objects.map {|o| o.errors.full_messages}.flatten
    if errors.any?
      html << "<div id='errorExplanation'><ul>\n"
      errors.each do |error|
        html << "<li>#{h error}</li>\n"
      end
      html << "</ul></div>\n"
    end
    html.html_safe
  end  

  def delete_link(url, options={})
    options = {
      :method => :delete,
      :data => {:confirm => l(:text_are_you_sure)},
      :class => 'icon icon-del'
    }.merge(options)

    link_to l(:button_delete), url, options
  end

  def preview_link(url, form, target='preview', options={})
    content_tag 'a', l(:label_preview), {
        :href => "#", 
        :onclick => %|submitPreview("#{escape_javascript url_for(url)}", "#{escape_javascript form}", "#{escape_javascript target}"); return false;|, 
        :accesskey => accesskey(:preview)
      }.merge(options)
  end

  def link_to_function(name, function, html_options={})
    content_tag(:a, name, {:href => '#', :onclick => "#{function}; return false;"}.merge(html_options))
  end

  # Helper to render JSON in views
  def raw_json(arg)
    arg.to_json.to_s.gsub('/', '\/').html_safe
  end

  def back_url
    url = params[:back_url]
    if url.nil? && referer = request.env['HTTP_REFERER']
      url = CGI.unescape(referer.to_s)
    end
    url
  end

  def back_url_hidden_field_tag
    url = back_url
    hidden_field_tag('back_url', url, :id => nil) unless url.blank?
  end

  def check_all_links(form_name)
    link_to_function(l(:button_check_all), "checkAll('#{form_name}', true)") +
    " | ".html_safe +
    link_to_function(l(:button_uncheck_all), "checkAll('#{form_name}', false)")
  end

  def progress_bar(pcts, options={})
    pcts = [pcts, pcts] unless pcts.is_a?(Array)
    pcts = pcts.collect(&:round)
    pcts[1] = pcts[1] - pcts[0]
    pcts << (100 - pcts[1] - pcts[0])
    width = options[:width] || '100px;'
    legend = options[:legend] || ''
    content_tag('table',
      content_tag('tr',
        (pcts[0] > 0 ? content_tag('td', '', :style => "width: #{pcts[0]}%;", :class => 'closed') : ''.html_safe) +
        (pcts[1] > 0 ? content_tag('td', '', :style => "width: #{pcts[1]}%;", :class => 'done') : ''.html_safe) +
        (pcts[2] > 0 ? content_tag('td', '', :style => "width: #{pcts[2]}%;", :class => 'todo') : ''.html_safe)
      ), :class => 'progress', :style => "width: #{width};").html_safe +
      content_tag('p', legend, :class => 'percent').html_safe
  end

  def checked_image(checked=true)
    if checked
      image_tag 'toggle_check.png'
    end
  end

  def context_menu(url)
    unless @context_menu_included
      content_for :header_tags do
        javascript_include_tag('context_menu') +
          stylesheet_link_tag('context_menu')
      end
      if l(:direction) == 'rtl'
        content_for :header_tags do
          stylesheet_link_tag('context_menu_rtl')
        end
      end
      @context_menu_included = true
    end
    javascript_tag "contextMenuInit('#{ url_for(url) }')"
  end

  def calendar_for(field_id)
    include_calendar_headers_tags
    javascript_tag("$(function() { $('##{field_id}').datepicker(datepickerOptions); });")
  end

  def include_calendar_headers_tags
    unless @calendar_headers_tags_included
      @calendar_headers_tags_included = true
      content_for :header_tags do
        start_of_week = Setting.start_of_week
        start_of_week = l(:general_first_day_of_week, :default => '1') if start_of_week.blank?
        # Redmine uses 1..7 (monday..sunday) in settings and locales
        # JQuery uses 0..6 (sunday..saturday), 7 needs to be changed to 0
        start_of_week = start_of_week.to_i % 7

        tags = javascript_tag(
                   "var datepickerOptions={dateFormat: 'yy-mm-dd', firstDay: #{start_of_week}, " +
                     "showOn: 'button', buttonImageOnly: true, buttonImage: '" + 
                     path_to_image('/images/calendar.png') +
                     "', showButtonPanel: true};")
        jquery_locale = l('jquery.locale', :default => current_language.to_s)
        unless jquery_locale == 'en'
          tags << javascript_include_tag("i18n/jquery.ui.datepicker-#{jquery_locale}.js") 
        end
        tags
      end
    end
  end

  # Overrides Rails' stylesheet_link_tag with themes and plugins support.
  # Examples:
  #   stylesheet_link_tag('styles') # => picks styles.css from the current theme or defaults
  #   stylesheet_link_tag('styles', :plugin => 'foo) # => picks styles.css from plugin's assets
  #
  def stylesheet_link_tag(*sources)
    options = sources.last.is_a?(Hash) ? sources.pop : {}
    plugin = options.delete(:plugin)
    sources = sources.map do |source|
      if plugin
        "/plugin_assets/#{plugin}/stylesheets/#{source}"
      elsif current_theme && current_theme.stylesheets.include?(source)
        current_theme.stylesheet_path(source)
      else
        source
      end
    end
    super sources, options
  end

  # Overrides Rails' image_tag with themes and plugins support.
  # Examples:
  #   image_tag('image.png') # => picks image.png from the current theme or defaults
  #   image_tag('image.png', :plugin => 'foo) # => picks image.png from plugin's assets
  #
  def image_tag(source, options={})
    if plugin = options.delete(:plugin)
      source = "/plugin_assets/#{plugin}/images/#{source}"
    elsif current_theme && current_theme.images.include?(source)
      source = current_theme.image_path(source)
    end
    super source, options
  end

  # Overrides Rails' javascript_include_tag with plugins support
  # Examples:
  #   javascript_include_tag('scripts') # => picks scripts.js from defaults
  #   javascript_include_tag('scripts', :plugin => 'foo) # => picks scripts.js from plugin's assets
  #
  def javascript_include_tag(*sources)
    options = sources.last.is_a?(Hash) ? sources.pop : {}
    if plugin = options.delete(:plugin)
      sources = sources.map do |source|
        if plugin
          "/plugin_assets/#{plugin}/javascripts/#{source}"
        else
          source
        end
      end
    end
    super sources, options
  end

  def content_for(name, content = nil, &block)
    @has_content ||= {}
    @has_content[name] = true
    super(name, content, &block)
  end

  def has_content?(name)
    (@has_content && @has_content[name]) || false
  end

  def sidebar_content?
    has_content?(:sidebar) || view_layouts_base_sidebar_hook_response.present?
  end

  def view_layouts_base_sidebar_hook_response
    @view_layouts_base_sidebar_hook_response ||= call_hook(:view_layouts_base_sidebar)
  end

  def email_delivery_enabled?
    !!ActionMailer::Base.perform_deliveries
  end

  # Returns the avatar image tag for the given +user+ if avatars are enabled
  # +user+ can be a User or a string that will be scanned for an email address (eg. 'joe <joe@foo.bar>')
  def avatar(user, options = { })
    if Setting.gravatar_enabled?
      options.merge!({:ssl => (request && request.ssl?), :default => Setting.gravatar_default})
      email = nil
      if user.respond_to?(:mail)
        email = user.mail
      elsif user.to_s =~ %r{<(.+?)>}
        email = $1
      end
      return gravatar(email.to_s.downcase, options) unless email.blank? rescue nil
    else
      ''
    end
  end

  def sanitize_anchor_name(anchor)
    if ''.respond_to?(:encoding) || RUBY_PLATFORM == 'java'
      anchor.gsub(%r{[^\p{Word}\s\-]}, '').gsub(%r{\s+(\-+\s*)?}, '-')
    else
      # TODO: remove when ruby1.8 is no longer supported
      anchor.gsub(%r{[^\w\s\-]}, '').gsub(%r{\s+(\-+\s*)?}, '-')
    end
  end

  # Returns the javascript tags that are included in the html layout head
  def javascript_heads
    tags = javascript_include_tag('jquery-1.8.3-ui-1.9.2-ujs-2.0.3', 'application')
    unless User.current.pref.warn_on_leaving_unsaved == '0'
      tags << "\n".html_safe + javascript_tag("$(window).load(function(){ warnLeavingUnsaved('#{escape_javascript l(:text_warn_on_leaving_unsaved)}'); });")
    end
    tags
  end

  def favicon
    "<link rel='shortcut icon' href='#{image_path('/favicon.ico')}' />".html_safe
  end

  def robot_exclusion_tag
    '<meta name="robots" content="noindex,follow,noarchive" />'.html_safe
  end

  # Returns true if arg is expected in the API response
  def include_in_api_response?(arg)
    unless @included_in_api_response
      param = params[:include]
      @included_in_api_response = param.is_a?(Array) ? param.collect(&:to_s) : param.to_s.split(',')
      @included_in_api_response.collect!(&:strip)
    end
    @included_in_api_response.include?(arg.to_s)
  end

  # Returns options or nil if nometa param or X-Redmine-Nometa header
  # was set in the request
  def api_meta(options)
    if params[:nometa].present? || request.headers['X-Redmine-Nometa']
      # compatibility mode for activeresource clients that raise
      # an error when unserializing an array with attributes
      nil
    else
      options
    end
  end

  private

  def wiki_helper
    helper = Redmine::WikiFormatting.helper_for(Setting.text_formatting)
    extend helper
    return self
  end

  def link_to_content_update(text, url_params = {}, html_options = {})
    link_to(text, url_params, html_options)
  end
end
Back to Top