Module: CGI::HtmlExtension

Defined in:
lib/laser/standard_library/cgi/html.rb

Overview

Mixin module providing HTML generation methods.

For example,

cgi.a("http://www.example.com") { "Example" }
  # => "<A HREF=\"http://www.example.com\">Example</A>"

Modules Http3, Http4, etc., contain more basic HTML-generation methods (:title, :center, etc.).

See class CGI for a detailed example.

Instance Method Summary (collapse)

Instance Method Details

- (Object) a(href = "")

Generate an Anchor element as a string.

href can either be a string, giving the URL for the HREF attribute, or it can be a hash of the element's attributes.

The body of the element is the string returned by the no-argument block passed in.

a("http://www.example.com") { "Example" }
  # => "<A HREF=\"http://www.example.com\">Example</A>"

a("HREF" => "http://www.example.com", "TARGET" => "_top") { "Example" }
  # => "<A HREF=\"http://www.example.com\" TARGET=\"_top\">Example</A>"


89
90
91
92
93
94
95
96
97
98
99
100
# File 'lib/laser/standard_library/cgi/html.rb', line 89

def a(href = "") # :yield:
  attributes = if href.kind_of?(String)
                 { "HREF" => href }
               else
                 href
               end
  if block_given?
    super(attributes){ yield }
  else
    super(attributes)
  end
end

- (Object) base(href = "")

Generate a Document Base URI element as a String.

href can either by a string, giving the base URL for the HREF attribute, or it can be a has of the element's attributes.

The passed-in no-argument block is ignored.

base("http://www.example.com/cgi")
  # => "<BASE HREF=\"http://www.example.com/cgi\">"


111
112
113
114
115
116
117
118
119
120
121
122
# File 'lib/laser/standard_library/cgi/html.rb', line 111

def base(href = "") # :yield:
  attributes = if href.kind_of?(String)
                 { "HREF" => href }
               else
                 href
               end
  if block_given?
    super(attributes){ yield }
  else
    super(attributes)
  end
end

- (Object) blockquote(cite = {})

Generate a BlockQuote element as a string.

cite can either be a string, give the URI for the source of the quoted text, or a hash, giving all attributes of the element, or it can be omitted, in which case the element has no attributes.

The body is provided by the passed-in no-argument block

blockquote("http://www.example.com/quotes/foo.html") { "Foo!" }
  #=> "<BLOCKQUOTE CITE=\"http://www.example.com/quotes/foo.html\">Foo!</BLOCKQUOTE>


134
135
136
137
138
139
140
141
142
143
144
145
# File 'lib/laser/standard_library/cgi/html.rb', line 134

def blockquote(cite = {})  # :yield:
  attributes = if cite.kind_of?(String)
                 { "CITE" => cite }
               else
                 cite
               end
  if block_given?
    super(attributes){ yield }
  else
    super(attributes)
  end
end

- (Object) caption(align = {})

Generate a Table Caption element as a string.

align can be a string, giving the alignment of the caption (one of top, bottom, left, or right). It can be a hash of all the attributes of the element. Or it can be omitted.

The body of the element is provided by the passed-in no-argument block.

caption("left") { "Capital Cities" }
  # => <CAPTION ALIGN=\"left\">Capital Cities</CAPTION>


158
159
160
161
162
163
164
165
166
167
168
169
# File 'lib/laser/standard_library/cgi/html.rb', line 158

def caption(align = {}) # :yield:
  attributes = if align.kind_of?(String)
                 { "ALIGN" => align }
               else
                 align
               end
  if block_given?
    super(attributes){ yield }
  else
    super(attributes)
  end
end

- (Object) checkbox(name = "", value = nil, checked = nil)

Generate a Checkbox Input element as a string.

The attributes of the element can be specified as three arguments, name, value, and checked. checked is a boolean value; if true, the CHECKED attribute will be included in the element.

Alternatively, the attributes can be specified as a hash.

checkbox("name")
  # = checkbox("NAME" => "name")

checkbox("name", "value")
  # = checkbox("NAME" => "name", "VALUE" => "value")

checkbox("name", "value", true)
  # = checkbox("NAME" => "name", "VALUE" => "value", "CHECKED" => true)


188
189
190
191
192
193
194
195
196
197
# File 'lib/laser/standard_library/cgi/html.rb', line 188

def checkbox(name = "", value = nil, checked = nil)
  attributes = if name.kind_of?(String)
                 { "TYPE" => "checkbox", "NAME" => name,
                   "VALUE" => value, "CHECKED" => checked }
               else
                 name["TYPE"] = "checkbox"
                 name
               end
  input(attributes)
end

- (Object) checkbox_group(name = "", *values)

Generate a sequence of checkbox elements, as a String.

The checkboxes will all have the same name attribute. Each checkbox is followed by a label. There will be one checkbox for each value. Each value can be specified as a String, which will be used both as the value of the VALUE attribute and as the label for that checkbox. A single-element array has the same effect.

Each value can also be specified as a three-element array. The first element is the VALUE attribute; the second is the label; and the third is a boolean specifying whether this checkbox is CHECKED.

Each value can also be specified as a two-element array, by omitting either the value element (defaults to the same as the label), or the boolean checked element (defaults to false).

checkbox_group("name", "foo", "bar", "baz")
  # <INPUT TYPE="checkbox" NAME="name" VALUE="foo">foo
  # <INPUT TYPE="checkbox" NAME="name" VALUE="bar">bar
  # <INPUT TYPE="checkbox" NAME="name" VALUE="baz">baz

checkbox_group("name", ["foo"], ["bar", true], "baz")
  # <INPUT TYPE="checkbox" NAME="name" VALUE="foo">foo
  # <INPUT TYPE="checkbox" CHECKED NAME="name" VALUE="bar">bar
  # <INPUT TYPE="checkbox" NAME="name" VALUE="baz">baz

checkbox_group("name", ["1", "Foo"], ["2", "Bar", true], "Baz")
  # <INPUT TYPE="checkbox" NAME="name" VALUE="1">Foo
  # <INPUT TYPE="checkbox" CHECKED NAME="name" VALUE="2">Bar
  # <INPUT TYPE="checkbox" NAME="name" VALUE="Baz">Baz

checkbox_group("NAME" => "name",
                 "VALUES" => ["foo", "bar", "baz"])

checkbox_group("NAME" => "name",
                 "VALUES" => [["foo"], ["bar", true], "baz"])

checkbox_group("NAME" => "name",
                 "VALUES" => [["1", "Foo"], ["2", "Bar", true], "Baz"])


242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
# File 'lib/laser/standard_library/cgi/html.rb', line 242

def checkbox_group(name = "", *values)
  if name.kind_of?(Hash)
    values = name["VALUES"]
    name = name["NAME"]
  end
  values.collect{|value|
    if value.kind_of?(String)
      checkbox(name, value) + value
    else
      if value[-1] == true || value[-1] == false
        checkbox(name, value[0],  value[-1]) +
        value[-2]
      else
        checkbox(name, value[0]) +
        value[-1]
      end
    end
  }.join
end

- (Object) file_field(name = "", size = 20, maxlength = nil)

Generate an File Upload Input element as a string.

The attributes of the element can be specified as three arguments, name, size, and maxlength. maxlength is the maximum length of the file's name, not of the file's contents.

Alternatively, the attributes can be specified as a hash.

See #multipart_form() for forms that include file uploads.

file_field("name")
  # <INPUT TYPE="file" NAME="name" SIZE="20">

file_field("name", 40)
  # <INPUT TYPE="file" NAME="name" SIZE="40">

file_field("name", 40, 100)
  # <INPUT TYPE="file" NAME="name" SIZE="40" MAXLENGTH="100">

file_field("NAME" => "name", "SIZE" => 40)
  # <INPUT TYPE="file" NAME="name" SIZE="40">


284
285
286
287
288
289
290
291
292
293
294
# File 'lib/laser/standard_library/cgi/html.rb', line 284

def file_field(name = "", size = 20, maxlength = nil)
  attributes = if name.kind_of?(String)
                 { "TYPE" => "file", "NAME" => name,
                   "SIZE" => size.to_s }
               else
                 name["TYPE"] = "file"
                 name
               end
  attributes["MAXLENGTH"] = maxlength.to_s if maxlength
  input(attributes)
end

- (Object) form(method = "post", action = script_name, enctype = "application/x-www-form-urlencoded")

Generate a Form element as a string.

method should be either “get” or “post”, and defaults to the latter. action defaults to the current CGI script name. enctype defaults to “application/x-www-form-urlencoded”.

Alternatively, the attributes can be specified as a hash.

See also #multipart_form() for forms that include file uploads.

form{ "string" }
  # <FORM METHOD="post" ENCTYPE="application/x-www-form-urlencoded">string</FORM>

form("get") { "string" }
  # <FORM METHOD="get" ENCTYPE="application/x-www-form-urlencoded">string</FORM>

form("get", "url") { "string" }
  # <FORM METHOD="get" ACTION="url" ENCTYPE="application/x-www-form-urlencoded">string</FORM>

form("METHOD" => "post", "ENCTYPE" => "enctype") { "string" }
  # <FORM METHOD="post" ENCTYPE="enctype">string</FORM>


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
# File 'lib/laser/standard_library/cgi/html.rb', line 318

def form(method = "post", action = script_name, enctype = "application/x-www-form-urlencoded")
  attributes = if method.kind_of?(String)
                 { "METHOD" => method, "ACTION" => action,
                   "ENCTYPE" => enctype }
               else
                 unless method.has_key?("METHOD")
                   method["METHOD"] = "post"
                 end
                 unless method.has_key?("ENCTYPE")
                   method["ENCTYPE"] = enctype
                 end
                 method
               end
  if block_given?
    body = yield
  else
    body = ""
  end
  if @output_hidden
    body += @output_hidden.collect{|k,v|
      "<INPUT TYPE=\"HIDDEN\" NAME=\"#{k}\" VALUE=\"#{v}\">"
    }.join
  end
  super(attributes){body}
end

- (Object) hidden(name = "", value = nil)

Generate a Hidden Input element as a string.

The attributes of the element can be specified as two arguments, name and value.

Alternatively, the attributes can be specified as a hash.

hidden("name")
  # <INPUT TYPE="hidden" NAME="name">

hidden("name", "value")
  # <INPUT TYPE="hidden" NAME="name" VALUE="value">

hidden("NAME" => "name", "VALUE" => "reset", "ID" => "foo")
  # <INPUT TYPE="hidden" NAME="name" VALUE="value" ID="foo">


359
360
361
362
363
364
365
366
367
# File 'lib/laser/standard_library/cgi/html.rb', line 359

def hidden(name = "", value = nil)
  attributes = if name.kind_of?(String)
                 { "TYPE" => "hidden", "NAME" => name, "VALUE" => value }
               else
                 name["TYPE"] = "hidden"
                 name
               end
  input(attributes)
end

- (Object) html(attributes = {})

Generate a top-level HTML element as a string.

The attributes of the element are specified as a hash. The pseudo-attribute “PRETTY” can be used to specify that the generated HTML string should be indented. “PRETTY” can also be specified as a string as the sole argument to this method. The pseudo-attribute “DOCTYPE”, if given, is used as the leading DOCTYPE SGML tag; it should include the entire text of this tag, including angle brackets.

The body of the html element is supplied as a block.

html{ "string" }
  # <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><HTML>string</HTML>

html("LANG" => "ja") { "string" }
  # <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><HTML LANG="ja">string</HTML>

html("DOCTYPE" => false) { "string" }
  # <HTML>string</HTML>

html("DOCTYPE" => '<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">') { "string" }
  # <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"><HTML>string</HTML>

html("PRETTY" => "  ") { "<BODY></BODY>" }
  # <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
  # <HTML>
  #   <BODY>
  #   </BODY>
  # </HTML>

html("PRETTY" => "\t") { "<BODY></BODY>" }
  # <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
  # <HTML>
  #         <BODY>
  #         </BODY>
  # </HTML>

html("PRETTY") { "<BODY></BODY>" }
  # = html("PRETTY" => "  ") { "<BODY></BODY>" }

html(if $VERBOSE then "PRETTY" end) { "HTML string" }


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
# File 'lib/laser/standard_library/cgi/html.rb', line 411

def html(attributes = {}) # :yield:
  if nil == attributes
    attributes = {}
  elsif "PRETTY" == attributes
    attributes = { "PRETTY" => true }
  end
  pretty = attributes.delete("PRETTY")
  pretty = "  " if true == pretty
  buf = ""

  if attributes.has_key?("DOCTYPE")
    if attributes["DOCTYPE"]
      buf += attributes.delete("DOCTYPE")
    else
      attributes.delete("DOCTYPE")
    end
  else
    buf += doctype
  end

  if block_given?
    buf += super(attributes){ yield }
  else
    buf += super(attributes)
  end

  if pretty
    CGI::pretty(buf, pretty)
  else
    buf
  end

end

- (Object) image_button(src = "", name = nil, alt = nil)

Generate an Image Button Input element as a string.

src is the URL of the image to use for the button. name is the input name. alt is the alternative text for the image.

Alternatively, the attributes can be specified as a hash.

image_button("url")
  # <INPUT TYPE="image" SRC="url">

image_button("url", "name", "string")
  # <INPUT TYPE="image" SRC="url" NAME="name" ALT="string">

image_button("SRC" => "url", "ALT" => "string")
  # <INPUT TYPE="image" SRC="url" ALT="string">


460
461
462
463
464
465
466
467
468
469
470
# File 'lib/laser/standard_library/cgi/html.rb', line 460

def image_button(src = "", name = nil, alt = nil)
  attributes = if src.kind_of?(String)
                 { "TYPE" => "image", "SRC" => src, "NAME" => name,
                   "ALT" => alt }
               else
                 src["TYPE"] = "image"
                 src["SRC"] ||= ""
                 src
               end
  input(attributes)
end

- (Object) img(src = "", alt = "", width = nil, height = nil)

Generate an Image element as a string.

src is the URL of the image. alt is the alternative text for the image. width is the width of the image, and height is its height.

Alternatively, the attributes can be specified as a hash.

img("src", "alt", 100, 50)
  # <IMG SRC="src" ALT="alt" WIDTH="100" HEIGHT="50">

img("SRC" => "src", "ALT" => "alt", "WIDTH" => 100, "HEIGHT" => 50)
  # <IMG SRC="src" ALT="alt" WIDTH="100" HEIGHT="50">


486
487
488
489
490
491
492
493
494
495
# File 'lib/laser/standard_library/cgi/html.rb', line 486

def img(src = "", alt = "", width = nil, height = nil)
  attributes = if src.kind_of?(String)
                 { "SRC" => src, "ALT" => alt }
               else
                 src
               end
  attributes["WIDTH"] = width.to_s if width
  attributes["HEIGHT"] = height.to_s if height
  super(attributes)
end

- (Object) multipart_form(action = nil, enctype = "multipart/form-data")

Generate a Form element with multipart encoding as a String.

Multipart encoding is used for forms that include file uploads.

action is the action to perform. enctype is the encoding type, which defaults to “multipart/form-data”.

Alternatively, the attributes can be specified as a hash.

multipart_form{ "string" }
  # <FORM METHOD="post" ENCTYPE="multipart/form-data">string</FORM>

multipart_form("url") { "string" }
  # <FORM METHOD="post" ACTION="url" ENCTYPE="multipart/form-data">string</FORM>


512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
# File 'lib/laser/standard_library/cgi/html.rb', line 512

def multipart_form(action = nil, enctype = "multipart/form-data")
  attributes = if action == nil
                 { "METHOD" => "post", "ENCTYPE" => enctype }
               elsif action.kind_of?(String)
                 { "METHOD" => "post", "ACTION" => action,
                   "ENCTYPE" => enctype }
               else
                 unless action.has_key?("METHOD")
                   action["METHOD"] = "post"
                 end
                 unless action.has_key?("ENCTYPE")
                   action["ENCTYPE"] = enctype
                 end
                 action
               end
  if block_given?
    form(attributes){ yield }
  else
    form(attributes)
  end
end

- (Object) password_field(name = "", value = nil, size = 40, maxlength = nil)

Generate a Password Input element as a string.

name is the name of the input field. value is its default value. size is the size of the input field display. maxlength is the maximum length of the inputted password.

Alternatively, attributes can be specified as a hash.

password_field("name")
  # <INPUT TYPE="password" NAME="name" SIZE="40">

password_field("name", "value")
  # <INPUT TYPE="password" NAME="name" VALUE="value" SIZE="40">

password_field("password", "value", 80, 200)
  # <INPUT TYPE="password" NAME="name" VALUE="value" SIZE="80" MAXLENGTH="200">

password_field("NAME" => "name", "VALUE" => "value")
  # <INPUT TYPE="password" NAME="name" VALUE="value">


554
555
556
557
558
559
560
561
562
563
564
# File 'lib/laser/standard_library/cgi/html.rb', line 554

def password_field(name = "", value = nil, size = 40, maxlength = nil)
  attributes = if name.kind_of?(String)
                 { "TYPE" => "password", "NAME" => name,
                   "VALUE" => value, "SIZE" => size.to_s }
               else
                 name["TYPE"] = "password"
                 name
               end
  attributes["MAXLENGTH"] = maxlength.to_s if maxlength
  input(attributes)
end

Generate a Select element as a string.

name is the name of the element. The values are the options that can be selected from the Select menu. Each value can be a String or a one, two, or three-element Array. If a String or a one-element Array, this is both the value of that option and the text displayed for it. If a three-element Array, the elements are the option value, displayed text, and a boolean value specifying whether this option starts as selected. The two-element version omits either the option value (defaults to the same as the display text) or the boolean selected specifier (defaults to false).

The attributes and options can also be specified as a hash. In this case, options are specified as an array of values as described above, with the hash key of “VALUES”.

popup_menu("name", "foo", "bar", "baz")
  # <SELECT NAME="name">
  #   <OPTION VALUE="foo">foo</OPTION>
  #   <OPTION VALUE="bar">bar</OPTION>
  #   <OPTION VALUE="baz">baz</OPTION>
  # </SELECT>

popup_menu("name", ["foo"], ["bar", true], "baz")
  # <SELECT NAME="name">
  #   <OPTION VALUE="foo">foo</OPTION>
  #   <OPTION VALUE="bar" SELECTED>bar</OPTION>
  #   <OPTION VALUE="baz">baz</OPTION>
  # </SELECT>

popup_menu("name", ["1", "Foo"], ["2", "Bar", true], "Baz")
  # <SELECT NAME="name">
  #   <OPTION VALUE="1">Foo</OPTION>
  #   <OPTION SELECTED VALUE="2">Bar</OPTION>
  #   <OPTION VALUE="Baz">Baz</OPTION>
  # </SELECT>

popup_menu("NAME" => "name", "SIZE" => 2, "MULTIPLE" => true,
            "VALUES" => [["1", "Foo"], ["2", "Bar", true], "Baz"])
  # <SELECT NAME="name" MULTIPLE SIZE="2">
  #   <OPTION VALUE="1">Foo</OPTION>
  #   <OPTION SELECTED VALUE="2">Bar</OPTION>
  #   <OPTION VALUE="Baz">Baz</OPTION>
  # </SELECT>


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
# File 'lib/laser/standard_library/cgi/html.rb', line 609

def popup_menu(name = "", *values)

  if name.kind_of?(Hash)
    values   = name["VALUES"]
    size     = name["SIZE"].to_s if name["SIZE"]
    multiple = name["MULTIPLE"]
    name     = name["NAME"]
  else
    size = nil
    multiple = nil
  end

  select({ "NAME" => name, "SIZE" => size,
           "MULTIPLE" => multiple }){
    values.collect{|value|
      if value.kind_of?(String)
        option({ "VALUE" => value }){ value }
      else
        if value[value.size - 1] == true
          option({ "VALUE" => value[0], "SELECTED" => true }){
            value[value.size - 2]
          }
        else
          option({ "VALUE" => value[0] }){
            value[value.size - 1]
          }
        end
      end
    }.join
  }

end

- (Object) radio_button(name = "", value = nil, checked = nil)

Generates a radio-button Input element.

name is the name of the input field. value is the value of the field if checked. checked specifies whether the field starts off checked.

Alternatively, the attributes can be specified as a hash.

radio_button("name", "value")
  # <INPUT TYPE="radio" NAME="name" VALUE="value">

radio_button("name", "value", true)
  # <INPUT TYPE="radio" NAME="name" VALUE="value" CHECKED>

radio_button("NAME" => "name", "VALUE" => "value", "ID" => "foo")
  # <INPUT TYPE="radio" NAME="name" VALUE="value" ID="foo">


658
659
660
661
662
663
664
665
666
667
# File 'lib/laser/standard_library/cgi/html.rb', line 658

def radio_button(name = "", value = nil, checked = nil)
  attributes = if name.kind_of?(String)
                 { "TYPE" => "radio", "NAME" => name,
                   "VALUE" => value, "CHECKED" => checked }
               else
                 name["TYPE"] = "radio"
                 name
               end
  input(attributes)
end

- (Object) radio_group(name = "", *values)

Generate a sequence of radio button Input elements, as a String.

This works the same as #checkbox_group(). However, it is not valid to have more than one radiobutton in a group checked.

radio_group("name", "foo", "bar", "baz")
  # <INPUT TYPE="radio" NAME="name" VALUE="foo">foo
  # <INPUT TYPE="radio" NAME="name" VALUE="bar">bar
  # <INPUT TYPE="radio" NAME="name" VALUE="baz">baz

radio_group("name", ["foo"], ["bar", true], "baz")
  # <INPUT TYPE="radio" NAME="name" VALUE="foo">foo
  # <INPUT TYPE="radio" CHECKED NAME="name" VALUE="bar">bar
  # <INPUT TYPE="radio" NAME="name" VALUE="baz">baz

radio_group("name", ["1", "Foo"], ["2", "Bar", true], "Baz")
  # <INPUT TYPE="radio" NAME="name" VALUE="1">Foo
  # <INPUT TYPE="radio" CHECKED NAME="name" VALUE="2">Bar
  # <INPUT TYPE="radio" NAME="name" VALUE="Baz">Baz

radio_group("NAME" => "name",
              "VALUES" => ["foo", "bar", "baz"])

radio_group("NAME" => "name",
              "VALUES" => [["foo"], ["bar", true], "baz"])

radio_group("NAME" => "name",
              "VALUES" => [["1", "Foo"], ["2", "Bar", true], "Baz"])


697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
# File 'lib/laser/standard_library/cgi/html.rb', line 697

def radio_group(name = "", *values)
  if name.kind_of?(Hash)
    values = name["VALUES"]
    name = name["NAME"]
  end
  values.collect{|value|
    if value.kind_of?(String)
      radio_button(name, value) + value
    else
      if value[-1] == true || value[-1] == false
        radio_button(name, value[0],  value[-1]) +
        value[-2]
      else
        radio_button(name, value[0]) +
        value[-1]
      end
    end
  }.join
end

- (Object) reset(value = nil, name = nil)

Generate a reset button Input element, as a String.

This resets the values on a form to their initial values. value is the text displayed on the button. name is the name of this button.

Alternatively, the attributes can be specified as a hash.

reset
  # <INPUT TYPE="reset">

reset("reset")
  # <INPUT TYPE="reset" VALUE="reset">

reset("VALUE" => "reset", "ID" => "foo")
  # <INPUT TYPE="reset" VALUE="reset" ID="foo">


732
733
734
735
736
737
738
739
740
# File 'lib/laser/standard_library/cgi/html.rb', line 732

def reset(value = nil, name = nil)
  attributes = if (not value) or value.kind_of?(String)
                 { "TYPE" => "reset", "VALUE" => value, "NAME" => name }
               else
                 value["TYPE"] = "reset"
                 value
               end
  input(attributes)
end

- (Object) submit(value = nil, name = nil)

Generate a submit button Input element, as a String.

value is the text to display on the button. name is the name of the input.

Alternatively, the attributes can be specified as a hash.

submit
  # <INPUT TYPE="submit">

submit("ok")
  # <INPUT TYPE="submit" VALUE="ok">

submit("ok", "button1")
  # <INPUT TYPE="submit" VALUE="ok" NAME="button1">

submit("VALUE" => "ok", "NAME" => "button1", "ID" => "foo")
  # <INPUT TYPE="submit" VALUE="ok" NAME="button1" ID="foo">


762
763
764
765
766
767
768
769
770
# File 'lib/laser/standard_library/cgi/html.rb', line 762

def submit(value = nil, name = nil)
  attributes = if (not value) or value.kind_of?(String)
                 { "TYPE" => "submit", "VALUE" => value, "NAME" => name }
               else
                 value["TYPE"] = "submit"
                 value
               end
  input(attributes)
end

- (Object) text_field(name = "", value = nil, size = 40, maxlength = nil)

Generate a text field Input element, as a String.

name is the name of the input field. value is its initial value. size is the size of the input area. maxlength is the maximum length of input accepted.

Alternatively, the attributes can be specified as a hash.

text_field("name")
  # <INPUT TYPE="text" NAME="name" SIZE="40">

text_field("name", "value")
  # <INPUT TYPE="text" NAME="name" VALUE="value" SIZE="40">

text_field("name", "value", 80)
  # <INPUT TYPE="text" NAME="name" VALUE="value" SIZE="80">

text_field("name", "value", 80, 200)
  # <INPUT TYPE="text" NAME="name" VALUE="value" SIZE="80" MAXLENGTH="200">

text_field("NAME" => "name", "VALUE" => "value")
  # <INPUT TYPE="text" NAME="name" VALUE="value">


794
795
796
797
798
799
800
801
802
803
804
# File 'lib/laser/standard_library/cgi/html.rb', line 794

def text_field(name = "", value = nil, size = 40, maxlength = nil)
  attributes = if name.kind_of?(String)
                 { "TYPE" => "text", "NAME" => name, "VALUE" => value,
                   "SIZE" => size.to_s }
               else
                 name["TYPE"] = "text"
                 name
               end
  attributes["MAXLENGTH"] = maxlength.to_s if maxlength
  input(attributes)
end

- (Object) textarea(name = "", cols = 70, rows = 10)

Generate a TextArea element, as a String.

name is the name of the textarea. cols is the number of columns and rows is the number of rows in the display.

Alternatively, the attributes can be specified as a hash.

The body is provided by the passed-in no-argument block

textarea("name")
   # = textarea("NAME" => "name", "COLS" => 70, "ROWS" => 10)

textarea("name", 40, 5)
   # = textarea("NAME" => "name", "COLS" => 40, "ROWS" => 5)


820
821
822
823
824
825
826
827
828
829
830
831
832
# File 'lib/laser/standard_library/cgi/html.rb', line 820

def textarea(name = "", cols = 70, rows = 10)  # :yield:
  attributes = if name.kind_of?(String)
                 { "NAME" => name, "COLS" => cols.to_s,
                   "ROWS" => rows.to_s }
               else
                 name
               end
  if block_given?
    super(attributes){ yield }
  else
    super(attributes)
  end
end