style/ui/widget-values.js.u8

function WidgetValues (c) {
  if (c) {
    this.container = c;
    this._init ();
  }
} // WidgetValues

WidgetValues.prototype._init = function () {
  var ta = this.container.getElementsByTagName ('textarea')[0];
  if (!ta) return;

  this.name = this.container.getAttribute ('data-widget-name') || ta.name || '';

  this.separatorPattern
      = new RegExp (this.container.getAttribute ('data-widget-separator')
                        || '\\s+');
  
  this.defaultValues = ta.defaultValue.length
    ? ta.defaultValue.split (this.separatorPattern) : [];
  this.initialValues = ta.value.length
    ? ta.value.split (this.separatorPattern) : [];

  this.clear ();
  this.appendValues (this.initialValues);
}; // _init

WidgetValues.prototype._clear = function () {
  this.firstField = null;
  this.lastField = null;
  this.container.innerHTML = '';
}; // _clear

WidgetValues.prototype.appendValues = function (values) {
  var self = this;
  for (var i = 0; i < values.length; i++) {
    var field = this.createField (values[i]);
    field.wvRemove = function () { self._removeField (this) };
    field.wvMoveUp = function () { self._moveUpField (this) };
    field.wvMoveDown = function () { self._moveDownField (this) };
    var parent = this.lastField ? this.lastField.parentNode : null;
    parent = parent ? parent : this.fieldsParent;
    parent.insertBefore (field, this.lastField ? this.lastField.nextSibling : null);
    this.lastField = field;
    this.firstField = this.firstField || field;
  }
}; // appendValues

WidgetValues.prototype.reset = function () {
  this.clear ();
  this.appendValues (this.defaultValues);
}; // reset

WidgetValues.prototype._removeField = function (field) {
  if (this.firstField == field) {
    this.firstField = this._getNextField (field);
  }
  if (this.lastField == field) {
    this.lastField = this._getPreviousField (field);
  }
  field.parentNode.removeChild (field);
}; // _removeField

WidgetValues.prototype._moveUpField = function (field) {
  this._swapFields (field, this._getPreviousField (field));
}; // _moveUpField

WidgetValues.prototype._moveDownField = function (field) {
  this._swapFields (field, this._getNextField (field));
}; // _moveDownField

WidgetValues.prototype._swapFields = function (f1, f2) {
  if (!f1 || !f2) return;
  var ph = document.createElement (f1.tagName || 'x');
  f1.parentNode.replaceChild (ph, f1);
  f2.parentNode.replaceChild (f1, f2);
  ph.parentNode.replaceChild (f2, ph);
}; // _swapFields

WidgetValues.prototype._getNextField = function (field) {
  var n = field.nextSibling;
  while (n != null) {
    if (this.isField (n)) {
      return n;
    }
    n = n.nextSibling;
  }
  return null;
}; // _getNextField

WidgetValues.prototype._getPreviousField = function (field) {
  var n = field.previousSibling;
  while (n != null) {
    if (this.isField (n)) {
      return n;
    }
    n = n.previousSibling;
  }
  return null;
}; // _getPreviousField

WidgetValues.prototype.createButton = function () {
  var el;

  try {
    el = document.createElement ('button');
    el.setAttribute('type', 'button');
  } catch (e) {
    el = document.createElement ('<button type=button>');
  }

  return el;
}; // createButton

WidgetValues.prototype.isField = function (n) {
  return n.wvIsField;
}; // isField


WidgetValues.prototype.createField = function (value) {
  var field = document.createElement ('div');
  field.wvIsField = true;

  var input = document.createElement ('input');
  input.name = this.name;
  input.value = value;
  field.appendChild (input);

  var removeButton = this.createButton ();
  removeButton.innerHTML = 'Remove';
  removeButton.onclick = function () { field.wvRemove () };
  field.appendChild (removeButton);

  var moveUpButton = this.createButton ();
  moveUpButton.innerHTML = 'Move up';
  moveUpButton.onclick = function () { field.wvMoveUp () };
  field.appendChild (moveUpButton);

  var moveDownButton = this.createButton ();
  moveDownButton.innerHTML = 'Move down';
  moveDownButton.onclick = function () { field.wvMoveDown () };
  field.appendChild (moveDownButton);

  return field;
}; // createField

WidgetValues.prototype.clear = function () {
  var self = this;

  this._clear ();

  var fields = document.createElement ('div');
  this.container.appendChild (fields);
  this.fieldsParent = fields;

  var addButton = this.createButton ();
  addButton.innerHTML = 'Add';
  addButton.onclick = function () { self.appendValues (['']) };
  this.container.appendChild (addButton);

  var resetButton = this.createButton ();
  resetButton.innerHTML = 'Reset';
  resetButton.onclick = function () { self.reset () };
  this.container.appendChild (resetButton);
}; // clear

if (window.WidgetValuesOnLoad) WidgetValuesOnLoad ();

/*

Usage:

  <script src="http://suika.fam.cx/www/style/ui/widget-values.js.u8" charset=utf-8></script>
  <script>
    window.onload = function () {
      new WidgetValues (document.getElementById ('c'));
    };
  </script>
  
  <div id=c data-widget-name=test-value data-widget-separator="[\r\n]+">
  <textarea name=test-values>
  default
  values
  separated
  by
  newlines
  </textarea>
  </div>

The |WidgetValues| constructor takes an argument, which represents the
container element.  The container element MUST contain a |textarea|
element, which represents the default values.  The content of the
container element is replaced by indivisual input fields (called
"fields" in this script) and additional contents such as an "add"
button.

The |data-widget-name| attribute of the container element represents
the name of the control, used by the form controls in the fields as
the |name| attribute value.  This attribute is REQURIED.

The |data-widget-separator| attribute of the container element
represents a JavaScript regular expression that matches to substrings
used to separate values in the |textarea| element.  This attribute is
optional; the default separator is /\s+/ (i.e. spaces).

You can customize how fields and additional contents are organized in
the container element by creating a subclass and inheriting
|createField| and |clear| methods, like the example below:

  // <http://suika.fam.cx/~wakaba/-temp/test/misc/jswidgets/values/values-2.html>
  
  function MyNumbersWidget (c) {
    WidgetValues.apply (this, [c]);
  }
  
  MyNumbersWidget.prototype = new WidgetValues;
  
  MyNumbersWidget.prototype.createField = function (value) {
    var field = document.createElement ('span');
    field.wvIsField = true;
    
    var input = document.createElement ('input');
    input.setAttribute ('type', 'number');
    input.setAttribute ('min', 1);
    input.setAttribute ('max', 10);
    field.appendChild (input);
    
    return field;
  };
  
  MyNumbersWidget.prototype.clear = function () {
    var self = this;
    
    this._clear ();
    
    var fields = document.createElement ('span');
    this.container.appendChild (fields);
    this.fieldsParent = fields;
    
    var addButton = this.createButton ();
    addButton.innerHTML = '+';
    addButton.onclick = function () { self.appendValues ([5]) };
    this.container.appendChild (addButton);
  };

Latest version of this script is available at
<http://suika.fam.cx/www/style/ui/widget-values.js.u8>.  Old versions
of this script are available from
<http://suika.fam.cx/www/style/ui/widget-values.js.u8,cvslog>.

*/

/* ***** BEGIN LICENSE BLOCK *****
 * Copyright 2008 Wakaba <w@suika.fam.cx>.  All rights reserved.
 *
 * This program is free software; you can redistribute it and/or 
 * modify it under the same terms as Perl itself.
 *
 * Alternatively, the contents of this file may be used 
 * under the following terms (the "MPL/GPL/LGPL"), 
 * in which case the provisions of the MPL/GPL/LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of the MPL/GPL/LGPL, and not to allow others to
 * use your version of this file under the terms of the Perl, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the MPL/GPL/LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the Perl or the MPL/GPL/LGPL.
 *
 * "MPL/GPL/LGPL":
 *
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * <http://www.mozilla.org/MPL/>
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is WidgetValues code.
 *
 * The Initial Developer of the Original Code is Wakaba.
 * Portions created by the Initial Developer are Copyright (C) 2008
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Wakaba <w@suika.fam.cx>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the LGPL or the GPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */
1	function WidgetValues (c) {
2	if (c) {
3	this.container = c;
4	this._init ();
5	}
6	} // WidgetValues
7
8	WidgetValues.prototype._init = function () {
9	var ta = this.container.getElementsByTagName ('textarea')[0];
10	if (!ta) return;
11
12	this.name = this.container.getAttribute ('data-widget-name') \|\| ta.name \|\| '';
13
14	this.separatorPattern
15	= new RegExp (this.container.getAttribute ('data-widget-separator')
16	\|\| '\\s+');
17
18	this.defaultValues = ta.defaultValue.length
19	? ta.defaultValue.split (this.separatorPattern) : [];
20	this.initialValues = ta.value.length
21	? ta.value.split (this.separatorPattern) : [];
22
23	this.clear ();
24	this.appendValues (this.initialValues);
25	}; // _init
26
27	WidgetValues.prototype._clear = function () {
28	this.firstField = null;
29	this.lastField = null;
30	this.container.innerHTML = '';
31	}; // _clear
32
33	WidgetValues.prototype.appendValues = function (values) {
34	var self = this;
35	for (var i = 0; i < values.length; i++) {
36	var field = this.createField (values[i]);
37	field.wvRemove = function () { self._removeField (this) };
38	field.wvMoveUp = function () { self._moveUpField (this) };
39	field.wvMoveDown = function () { self._moveDownField (this) };
40	var parent = this.lastField ? this.lastField.parentNode : null;
41	parent = parent ? parent : this.fieldsParent;
42	parent.insertBefore (field, this.lastField ? this.lastField.nextSibling : null);
43	this.lastField = field;
44	this.firstField = this.firstField \|\| field;
45	}
46	}; // appendValues
47
48	WidgetValues.prototype.reset = function () {
49	this.clear ();
50	this.appendValues (this.defaultValues);
51	}; // reset
52
53	WidgetValues.prototype._removeField = function (field) {
54	if (this.firstField == field) {
55	this.firstField = this._getNextField (field);
56	}
57	if (this.lastField == field) {
58	this.lastField = this._getPreviousField (field);
59	}
60	field.parentNode.removeChild (field);
61	}; // _removeField
62
63	WidgetValues.prototype._moveUpField = function (field) {
64	this._swapFields (field, this._getPreviousField (field));
65	}; // _moveUpField
66
67	WidgetValues.prototype._moveDownField = function (field) {
68	this._swapFields (field, this._getNextField (field));
69	}; // _moveDownField
70
71	WidgetValues.prototype._swapFields = function (f1, f2) {
72	if (!f1 \|\| !f2) return;
73	var ph = document.createElement (f1.tagName \|\| 'x');
74	f1.parentNode.replaceChild (ph, f1);
75	f2.parentNode.replaceChild (f1, f2);
76	ph.parentNode.replaceChild (f2, ph);
77	}; // _swapFields
78
79	WidgetValues.prototype._getNextField = function (field) {
80	var n = field.nextSibling;
81	while (n != null) {
82	if (this.isField (n)) {
83	return n;
84	}
85	n = n.nextSibling;
86	}
87	return null;
88	}; // _getNextField
89
90	WidgetValues.prototype._getPreviousField = function (field) {
91	var n = field.previousSibling;
92	while (n != null) {
93	if (this.isField (n)) {
94	return n;
95	}
96	n = n.previousSibling;
97	}
98	return null;
99	}; // _getPreviousField
100
101	WidgetValues.prototype.createButton = function () {
102	var el;
103
104	try {
105	el = document.createElement ('button');
106	el.setAttribute('type', 'button');
107	} catch (e) {
108	el = document.createElement ('<button type=button>');
109	}
110
111	return el;
112	}; // createButton
113
114	WidgetValues.prototype.isField = function (n) {
115	return n.wvIsField;
116	}; // isField
117
118
119
120
121	WidgetValues.prototype.createField = function (value) {
122	var field = document.createElement ('div');
123	field.wvIsField = true;
124
125	var input = document.createElement ('input');
126	input.name = this.name;
127	input.value = value;
128	field.appendChild (input);
129
130	var removeButton = this.createButton ();
131	removeButton.innerHTML = 'Remove';
132	removeButton.onclick = function () { field.wvRemove () };
133	field.appendChild (removeButton);
134
135	var moveUpButton = this.createButton ();
136	moveUpButton.innerHTML = 'Move up';
137	moveUpButton.onclick = function () { field.wvMoveUp () };
138	field.appendChild (moveUpButton);
139
140	var moveDownButton = this.createButton ();
141	moveDownButton.innerHTML = 'Move down';
142	moveDownButton.onclick = function () { field.wvMoveDown () };
143	field.appendChild (moveDownButton);
144
145	return field;
146	}; // createField
147
148	WidgetValues.prototype.clear = function () {
149	var self = this;
150
151	this._clear ();
152
153	var fields = document.createElement ('div');
154	this.container.appendChild (fields);
155	this.fieldsParent = fields;
156
157	var addButton = this.createButton ();
158	addButton.innerHTML = 'Add';
159	addButton.onclick = function () { self.appendValues (['']) };
160	this.container.appendChild (addButton);
161
162	var resetButton = this.createButton ();
163	resetButton.innerHTML = 'Reset';
164	resetButton.onclick = function () { self.reset () };
165	this.container.appendChild (resetButton);
166	}; // clear
167
168	if (window.WidgetValuesOnLoad) WidgetValuesOnLoad ();
169
170	/*
171
172	Usage:
173
174	<script src="http://suika.fam.cx/www/style/ui/widget-values.js.u8" charset=utf-8></script>
175	<script>
176	window.onload = function () {
177	new WidgetValues (document.getElementById ('c'));
178	};
179	</script>
180
181	<div id=c data-widget-name=test-value data-widget-separator="[\r\n]+">
182	<textarea name=test-values>
183	default
184	values
185	separated
186	by
187	newlines
188	</textarea>
189	</div>
190
191	The \|WidgetValues\| constructor takes an argument, which represents the
192	container element. The container element MUST contain a \|textarea\|
193	element, which represents the default values. The content of the
194	container element is replaced by indivisual input fields (called
195	"fields" in this script) and additional contents such as an "add"
196	button.
197
198	The \|data-widget-name\| attribute of the container element represents
199	the name of the control, used by the form controls in the fields as
200	the \|name\| attribute value. This attribute is REQURIED.
201
202	The \|data-widget-separator\| attribute of the container element
203	represents a JavaScript regular expression that matches to substrings
204	used to separate values in the \|textarea\| element. This attribute is
205	optional; the default separator is /\s+/ (i.e. spaces).
206
207	You can customize how fields and additional contents are organized in
208	the container element by creating a subclass and inheriting
209	\|createField\| and \|clear\| methods, like the example below:
210
211	// <http://suika.fam.cx/~wakaba/-temp/test/misc/jswidgets/values/values-2.html>
212
213	function MyNumbersWidget (c) {
214	WidgetValues.apply (this, [c]);
215	}
216
217	MyNumbersWidget.prototype = new WidgetValues;
218
219	MyNumbersWidget.prototype.createField = function (value) {
220	var field = document.createElement ('span');
221	field.wvIsField = true;
222
223	var input = document.createElement ('input');
224	input.setAttribute ('type', 'number');
225	input.setAttribute ('min', 1);
226	input.setAttribute ('max', 10);
227	field.appendChild (input);
228
229	return field;
230	};
231
232	MyNumbersWidget.prototype.clear = function () {
233	var self = this;
234
235	this._clear ();
236
237	var fields = document.createElement ('span');
238	this.container.appendChild (fields);
239	this.fieldsParent = fields;
240
241	var addButton = this.createButton ();
242	addButton.innerHTML = '+';
243	addButton.onclick = function () { self.appendValues ([5]) };
244	this.container.appendChild (addButton);
245	};
246
247	Latest version of this script is available at
248	<http://suika.fam.cx/www/style/ui/widget-values.js.u8>. Old versions
249	of this script are available from
250	<http://suika.fam.cx/www/style/ui/widget-values.js.u8,cvslog>.
251
252	*/
253
254	/* *** BEGIN LICENSE BLOCK ***
255	* Copyright 2008 Wakaba <w@suika.fam.cx>. All rights reserved.
256	*
257	* This program is free software; you can redistribute it and/or
258	* modify it under the same terms as Perl itself.
259	*
260	* Alternatively, the contents of this file may be used
261	* under the following terms (the "MPL/GPL/LGPL"),
262	* in which case the provisions of the MPL/GPL/LGPL are applicable instead
263	* of those above. If you wish to allow use of your version of this file only
264	* under the terms of the MPL/GPL/LGPL, and not to allow others to
265	* use your version of this file under the terms of the Perl, indicate your
266	* decision by deleting the provisions above and replace them with the notice
267	* and other provisions required by the MPL/GPL/LGPL. If you do not delete
268	* the provisions above, a recipient may use your version of this file under
269	* the terms of any one of the Perl or the MPL/GPL/LGPL.
270	*
271	* "MPL/GPL/LGPL":
272	*
273	* Version: MPL 1.1/GPL 2.0/LGPL 2.1
274	*
275	* The contents of this file are subject to the Mozilla Public License Version
276	* 1.1 (the "License"); you may not use this file except in compliance with
277	* the License. You may obtain a copy of the License at
278	* <http://www.mozilla.org/MPL/>
279	*
280	* Software distributed under the License is distributed on an "AS IS" basis,
281	* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
282	* for the specific language governing rights and limitations under the
283	* License.
284	*
285	* The Original Code is WidgetValues code.
286	*
287	* The Initial Developer of the Original Code is Wakaba.
288	* Portions created by the Initial Developer are Copyright (C) 2008
289	* the Initial Developer. All Rights Reserved.
290	*
291	* Contributor(s):
292	* Wakaba <w@suika.fam.cx>
293	*
294	* Alternatively, the contents of this file may be used under the terms of
295	* either the GNU General Public License Version 2 or later (the "GPL"), or
296	* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
297	* in which case the provisions of the GPL or the LGPL are applicable instead
298	* of those above. If you wish to allow use of your version of this file only
299	* under the terms of either the GPL or the LGPL, and not to allow others to
300	* use your version of this file under the terms of the MPL, indicate your
301	* decision by deleting the provisions above and replace them with the notice
302	* and other provisions required by the LGPL or the GPL. If you do not delete
303	* the provisions above, a recipient may use your version of this file under
304	* the terms of any one of the MPL, the GPL or the LGPL.
305	*
306	* *** END LICENSE BLOCK *** */