Module: CGI::HtmlExtension
- Defined in:
- lib/cgi.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
-
#a(href = "")) ⇒ Object
Generate an Anchor element as a string.
-
#base(href = "")) ⇒ Object
Generate a Document Base URI element as a String.
-
#blockquote(cite = nil) ⇒ Object
Generate a BlockQuote element as a string.
-
#caption(align = nil) ⇒ Object
Generate a Table Caption element as a string.
-
#checkbox(name = "",, value = nil, checked = nil) ⇒ Object
Generate a Checkbox Input element as a string.
-
#checkbox_group(name = "",, *values) ⇒ Object
Generate a sequence of checkbox elements, as a String.
-
#file_field(name = "",, size = 20, maxlength = nil) ⇒ Object
Generate an File Upload Input element as a string.
-
#form(method = "post",, action = script_name, enctype = "application/x-www-form-urlencoded")) ⇒ Object
Generate a Form element as a string.
-
#hidden(name = "",, value = nil) ⇒ Object
Generate a Hidden Input element as a string.
-
#html(attributes = {}) ⇒ Object
Generate a top-level HTML element as a string.
-
#image_button(src = "",, name = nil, alt = nil) ⇒ Object
Generate an Image Button Input element as a string.
-
#img(src = "",, alt = "",, width = nil, height = nil) ⇒ Object
Generate an Image element as a string.
-
#multipart_form(action = nil, enctype = "multipart/form-data")) ⇒ Object
Generate a Form element with multipart encoding as a String.
-
#password_field(name = "",, value = nil, size = 40, maxlength = nil) ⇒ Object
Generate a Password Input element as a string.
-
#popup_menu(name = "",, *values) ⇒ Object
(also: #scrolling_list)
Generate a Select element as a string.
-
#radio_button(name = "",, value = nil, checked = nil) ⇒ Object
Generates a radio-button Input element.
-
#radio_group(name = "",, *values) ⇒ Object
Generate a sequence of radio button Input elements, as a String.
-
#reset(value = nil, name = nil) ⇒ Object
Generate a reset button Input element, as a String.
-
#submit(value = nil, name = nil) ⇒ Object
Generate a submit button Input element, as a String.
-
#text_field(name = "",, value = nil, size = 40, maxlength = nil) ⇒ Object
Generate a text field Input element, as a String.
-
#textarea(name = "",, cols = 70, rows = 10) ⇒ Object
Generate a TextArea element, as a String.
Instance Method Details
#a(href = "")) ⇒ Object
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>"
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# File 'lib/cgi.rb', line 1324 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 |
#base(href = "")) ⇒ Object
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\">"
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# File 'lib/cgi.rb', line 1346 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 |
#blockquote(cite = nil) ⇒ Object
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>
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# File 'lib/cgi.rb', line 1369 def blockquote(cite = nil) # :yield: attributes = if cite.kind_of?(String) { "CITE" => cite } else cite or "" end if block_given? super(attributes){ yield } else super(attributes) end end |
#caption(align = nil) ⇒ Object
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.
("left") { "Capital Cities" }
# => <CAPTION ALIGN=\"left\">Capital Cities</CAPTION>
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# File 'lib/cgi.rb', line 1393 def (align = nil) # :yield: attributes = if align.kind_of?(String) { "ALIGN" => align } else align or "" end if block_given? super(attributes){ yield } else super(attributes) end end |
#checkbox(name = "",, value = nil, checked = nil) ⇒ Object
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)
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# File 'lib/cgi.rb', line 1423 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 |
#checkbox_group(name = "",, *values) ⇒ Object
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"])
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# File 'lib/cgi.rb', line 1477 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[value.size - 1] == true checkbox(name, value[0], true) + value[value.size - 2] else checkbox(name, value[0]) + value[value.size - 1] end end }.to_s end |
#file_field(name = "",, size = 20, maxlength = nil) ⇒ Object
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">
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# File 'lib/cgi.rb', line 1519 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 |
#form(method = "post",, action = script_name, enctype = "application/x-www-form-urlencoded")) ⇒ Object
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>
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# File 'lib/cgi.rb', line 1553 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}\">" }.to_s end super(attributes){body} end |
#hidden(name = "",, value = nil) ⇒ Object
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">
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# File 'lib/cgi.rb', line 1594 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 |
#html(attributes = {}) ⇒ Object
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" }
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# File 'lib/cgi.rb', line 1646 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 |
#image_button(src = "",, name = nil, alt = nil) ⇒ Object
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.
("url")
# <INPUT TYPE="image" SRC="url">
("url", "name", "string")
# <INPUT TYPE="image" SRC="url" NAME="name" ALT="string">
("SRC" => "url", "ATL" => "strng")
# <INPUT TYPE="image" SRC="url" ALT="string">
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# File 'lib/cgi.rb', line 1695 def (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 |
#img(src = "",, alt = "",, width = nil, height = nil) ⇒ Object
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">
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# File 'lib/cgi.rb', line 1721 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 |
#multipart_form(action = nil, enctype = "multipart/form-data")) ⇒ Object
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>
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# File 'lib/cgi.rb', line 1747 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 |
#password_field(name = "",, value = nil, size = 40, maxlength = nil) ⇒ Object
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">
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# File 'lib/cgi.rb', line 1789 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 |
#popup_menu(name = "",, *values) ⇒ Object Also known as: scrolling_list
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".
("name", "foo", "bar", "baz")
# <SELECT NAME="name">
# <OPTION VALUE="foo">foo</OPTION>
# <OPTION VALUE="bar">bar</OPTION>
# <OPTION VALUE="baz">baz</OPTION>
# </SELECT>
("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>
("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>
("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>
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# File 'lib/cgi.rb', line 1844 def (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 }.to_s } end |
#radio_button(name = "",, value = nil, checked = nil) ⇒ Object
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.
("name", "value")
# <INPUT TYPE="radio" NAME="name" VALUE="value">
("name", "value", true)
# <INPUT TYPE="radio" NAME="name" VALUE="value" CHECKED>
("NAME" => "name", "VALUE" => "value", "ID" => "foo")
# <INPUT TYPE="radio" NAME="name" VALUE="value" ID="foo">
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# File 'lib/cgi.rb', line 1893 def (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 |
#radio_group(name = "",, *values) ⇒ Object
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"])
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# File 'lib/cgi.rb', line 1932 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) (name, value) + value else if value[value.size - 1] == true (name, value[0], true) + value[value.size - 2] else (name, value[0]) + value[value.size - 1] end end }.to_s end |
#reset(value = nil, name = nil) ⇒ Object
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">
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# File 'lib/cgi.rb', line 1967 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 |
#submit(value = nil, name = nil) ⇒ Object
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">
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# File 'lib/cgi.rb', line 1997 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 |
#text_field(name = "",, value = nil, size = 40, maxlength = nil) ⇒ Object
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">
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# File 'lib/cgi.rb', line 2029 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 |
#textarea(name = "",, cols = 70, rows = 10) ⇒ Object
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)
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# File 'lib/cgi.rb', line 2055 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 |