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10 * Copyright(c) 2006-2009 Ext JS, LLC
12 * http://www.extjs.com/license
14 <div id="cls-Ext.layout.FormLayout"></div>/**
15 * @class Ext.layout.FormLayout
16 * @extends Ext.layout.AnchorLayout
17 * <p>This layout manager is specifically designed for rendering and managing child Components of
18 * {@link Ext.form.FormPanel forms}. It is responsible for rendering the labels of
19 * {@link Ext.form.Field Field}s.</p>
21 * <p>This layout manager is used when a Container is configured with the <tt>layout:'form'</tt>
22 * {@link Ext.Container#layout layout} config option, and should generally not need to be created directly
23 * via the new keyword. See <tt><b>{@link Ext.Container#layout}</b></tt> for additional details.</p>
25 * <p>In an application, it will usually be preferrable to use a {@link Ext.form.FormPanel FormPanel}
26 * (which is configured with FormLayout as its layout class by default) since it also provides built-in
27 * functionality for {@link Ext.form.BasicForm#doAction loading, validating and submitting} the form.</p>
29 * <p>A {@link Ext.Container Container} <i>using</i> the FormLayout layout manager (e.g.
30 * {@link Ext.form.FormPanel} or specifying <tt>layout:'form'</tt>) can also accept the following
31 * layout-specific config properties:<div class="mdetail-params"><ul>
32 * <li><b><tt>{@link Ext.form.FormPanel#hideLabels hideLabels}</tt></b></li>
33 * <li><b><tt>{@link Ext.form.FormPanel#labelAlign labelAlign}</tt></b></li>
34 * <li><b><tt>{@link Ext.form.FormPanel#labelPad labelPad}</tt></b></li>
35 * <li><b><tt>{@link Ext.form.FormPanel#labelSeparator labelSeparator}</tt></b></li>
36 * <li><b><tt>{@link Ext.form.FormPanel#labelWidth labelWidth}</tt></b></li>
39 * <p>Any Component (including Fields) managed by FormLayout accepts the following as a config option:
40 * <div class="mdetail-params"><ul>
41 * <li><b><tt>{@link Ext.Component#anchor anchor}</tt></b></li>
44 * <p>Any Component managed by FormLayout may be rendered as a form field (with an associated label) by
45 * configuring it with a non-null <b><tt>{@link Ext.Component#fieldLabel fieldLabel}</tt></b>. Components configured
46 * in this way may be configured with the following options which affect the way the FormLayout renders them:
47 * <div class="mdetail-params"><ul>
48 * <li><b><tt>{@link Ext.Component#clearCls clearCls}</tt></b></li>
49 * <li><b><tt>{@link Ext.Component#fieldLabel fieldLabel}</tt></b></li>
50 * <li><b><tt>{@link Ext.Component#hideLabel hideLabel}</tt></b></li>
51 * <li><b><tt>{@link Ext.Component#itemCls itemCls}</tt></b></li>
52 * <li><b><tt>{@link Ext.Component#labelSeparator labelSeparator}</tt></b></li>
53 * <li><b><tt>{@link Ext.Component#labelStyle labelStyle}</tt></b></li>
56 * <p>Example usage:</p>
58 // Required if showing validation messages
61 // While you can create a basic Panel with layout:'form', practically
62 // you should usually use a FormPanel to also get its form functionality
63 // since it already creates a FormLayout internally.
64 var form = new Ext.form.FormPanel({
66 bodyStyle: 'padding:15px',
68 defaultType: 'textfield',
70 // applied to each contained item
75 fieldLabel: 'First Name',
78 {@link Ext.Component#labelSeparator labelSeparator}: ':' // override labelSeparator layout config
80 fieldLabel: 'Last Name',
88 hideLabel: true, // override hideLabels layout config
98 {@link #labelSeparator}: '~' // superseded by assignment below
100 // config options applicable to container when layout='form':
102 labelAlign: 'left', // or 'right' or 'top'
103 {@link Ext.form.FormPanel#labelSeparator labelSeparator}: '>>', // takes precedence over layoutConfig value
104 labelWidth: 65, // defaults to 100
105 labelPad: 8 // defaults to 5, must specify labelWidth to be honored
109 Ext.layout.FormLayout = Ext.extend(Ext.layout.AnchorLayout, {
111 <div id="cfg-Ext.layout.FormLayout-labelSeparator"></div>/**
112 * @cfg {String} labelSeparator
113 * See {@link Ext.form.FormPanel}.{@link Ext.form.FormPanel#labelSeparator labelSeparator}. Configuration
114 * of this property at the <b>container</b> level takes precedence.
116 labelSeparator : ':',
118 <div id="prop-Ext.layout.FormLayout-labelStyle"></div>/**
119 * Read only. The CSS style specification string added to field labels in this layout if not
120 * otherwise {@link Ext.Component#labelStyle specified by each contained field}.
122 * @property labelStyle
125 <div id="cfg-Ext.layout.FormLayout-trackLabels"></div>/**
126 * @cfg {Boolean} trackLabels
127 * True to show/hide the field label when the field is hidden. Defaults to <tt>false</tt>.
132 onRemove: function(c){
133 Ext.layout.FormLayout.superclass.onRemove.call(this, c);
134 if(this.trackLabels && !this.isHide(c)){
135 c.un('show', this.onFieldShow, this);
136 c.un('hide', this.onFieldHide, this);
138 // check for itemCt, since we may be removing a fieldset or something similar
139 var el = c.getPositionEl(),
140 ct = c.getItemCt && c.getItemCt();
141 if(c.rendered && ct){
144 Ext.destroyMembers(c, 'label', 'itemCt');
146 Ext.destroyMembers(c, 'getItemCt', 'customItemCt');
152 setContainer : function(ct){
153 Ext.layout.FormLayout.superclass.setContainer.call(this, ct);
155 ct.addClass('x-form-label-'+ct.labelAlign);
160 labelStyle: 'display:none',
161 elementStyle: 'padding-left:0;',
165 this.labelSeparator = ct.labelSeparator || this.labelSeparator;
166 ct.labelWidth = ct.labelWidth || 100;
167 if(Ext.isNumber(ct.labelWidth)){
168 var pad = Ext.isNumber(ct.labelPad) ? ct.labelPad : 5;
170 labelAdjust: ct.labelWidth + pad,
171 labelStyle: 'width:' + ct.labelWidth + 'px;',
172 elementStyle: 'padding-left:' + (ct.labelWidth + pad) + 'px'
175 if(ct.labelAlign == 'top'){
177 labelStyle: 'width:auto;',
179 elementStyle: 'padding-left:0;'
186 return c.hideLabel || this.container.hideLabels;
189 onFieldShow: function(c){
190 c.getItemCt().removeClass('x-hide-' + c.hideMode);
193 onFieldHide: function(c){
194 c.getItemCt().addClass('x-hide-' + c.hideMode);
198 getLabelStyle: function(s){
199 var ls = '', items = [this.labelStyle, s];
200 for (var i = 0, len = items.length; i < len; ++i){
203 if (ls.substr(-1, 1) != ';'){
211 <div id="cfg-Ext.layout.FormLayout-fieldTpl"></div>/**
212 * @cfg {Ext.Template} fieldTpl
213 * A {@link Ext.Template#compile compile}d {@link Ext.Template} for rendering
214 * the fully wrapped, labeled and styled form Field. Defaults to:</p><pre><code>
216 '<div class="x-form-item {itemCls}" tabIndex="-1">',
217 '<label for="{id}" style="{labelStyle}" class="x-form-item-label">{label}{labelSeparator}</label>',
218 '<div class="x-form-element" id="x-form-el-{id}" style="{elementStyle}">',
219 '</div><div class="{clearCls}"></div>',
223 * <p>This may be specified to produce a different DOM structure when rendering form Fields.</p>
224 * <p>A description of the properties within the template follows:</p><div class="mdetail-params"><ul>
225 * <li><b><tt>itemCls</tt></b> : String<div class="sub-desc">The CSS class applied to the outermost div wrapper
226 * that contains this field label and field element (the default class is <tt>'x-form-item'</tt> and <tt>itemCls</tt>
227 * will be added to that). If supplied, <tt>itemCls</tt> at the field level will override the default <tt>itemCls</tt>
228 * supplied at the container level.</div></li>
229 * <li><b><tt>id</tt></b> : String<div class="sub-desc">The id of the Field</div></li>
230 * <li><b><tt>{@link #labelStyle}</tt></b> : String<div class="sub-desc">
231 * A CSS style specification string to add to the field label for this field (defaults to <tt>''</tt> or the
232 * {@link #labelStyle layout's value for <tt>labelStyle</tt>}).</div></li>
233 * <li><b><tt>label</tt></b> : String<div class="sub-desc">The text to display as the label for this
234 * field (defaults to <tt>''</tt>)</div></li>
235 * <li><b><tt>{@link #labelSeparator}</tt></b> : String<div class="sub-desc">The separator to display after
236 * the text of the label for this field (defaults to a colon <tt>':'</tt> or the
237 * {@link #labelSeparator layout's value for labelSeparator}). To hide the separator use empty string ''.</div></li>
238 * <li><b><tt>elementStyle</tt></b> : String<div class="sub-desc">The styles text for the input element's wrapper.</div></li>
239 * <li><b><tt>clearCls</tt></b> : String<div class="sub-desc">The CSS class to apply to the special clearing div
240 * rendered directly after each form field wrapper (defaults to <tt>'x-form-clear-left'</tt>)</div></li>
242 * <p>Also see <tt>{@link #getTemplateArgs}</tt></p>
246 renderItem : function(c, position, target){
247 if(c && (c.isFormField || c.fieldLabel) && c.inputType != 'hidden'){
248 var args = this.getTemplateArgs(c);
249 if(Ext.isNumber(position)){
250 position = target.dom.childNodes[position] || null;
253 c.itemCt = this.fieldTpl.insertBefore(position, args, true);
255 c.itemCt = this.fieldTpl.append(target, args, true);
258 c.render('x-form-el-' + c.id);
259 }else if(!this.isValidParent(c, target)){
260 Ext.fly('x-form-el-' + c.id).appendChild(c.getPositionEl());
263 // Non form fields don't have getItemCt, apply it here
264 // This will get cleaned up in onRemove
266 getItemCt: function(){
272 c.label = c.getItemCt().child('label.x-form-item-label');
273 if(this.trackLabels && !this.isHide(c)){
279 show: this.onFieldShow,
280 hide: this.onFieldHide
283 this.configureItem(c);
285 Ext.layout.FormLayout.superclass.renderItem.apply(this, arguments);
289 <div id="method-Ext.layout.FormLayout-getTemplateArgs"></div>/**
290 * <p>Provides template arguments for rendering the fully wrapped, labeled and styled form Field.</p>
291 * <p>This method returns an object hash containing properties used by the layout's {@link #fieldTpl}
292 * to create a correctly wrapped, labeled and styled form Field. This may be overriden to
293 * create custom layouts. The properties which must be returned are:</p><div class="mdetail-params"><ul>
294 * <li><b><tt>itemCls</tt></b> : String<div class="sub-desc">The CSS class applied to the outermost div wrapper
295 * that contains this field label and field element (the default class is <tt>'x-form-item'</tt> and <tt>itemCls</tt>
296 * will be added to that). If supplied, <tt>itemCls</tt> at the field level will override the default <tt>itemCls</tt>
297 * supplied at the container level.</div></li>
298 * <li><b><tt>id</tt></b> : String<div class="sub-desc">The id of the Field</div></li>
299 * <li><b><tt>{@link #labelStyle}</tt></b> : String<div class="sub-desc">
300 * A CSS style specification string to add to the field label for this field (defaults to <tt>''</tt> or the
301 * {@link #labelStyle layout's value for <tt>labelStyle</tt>}).</div></li>
302 * <li><b><tt>label</tt></b> : String<div class="sub-desc">The text to display as the label for this
303 * field (defaults to <tt>''</tt>)</div></li>
304 * <li><b><tt>{@link #labelSeparator}</tt></b> : String<div class="sub-desc">The separator to display after
305 * the text of the label for this field (defaults to a colon <tt>':'</tt> or the
306 * {@link #labelSeparator layout's value for labelSeparator}). To hide the separator use empty string ''.</div></li>
307 * <li><b><tt>elementStyle</tt></b> : String<div class="sub-desc">The styles text for the input element's wrapper.</div></li>
308 * <li><b><tt>clearCls</tt></b> : String<div class="sub-desc">The CSS class to apply to the special clearing div
309 * rendered directly after each form field wrapper (defaults to <tt>'x-form-clear-left'</tt>)</div></li>
311 * @param field The {@link Field Ext.form.Field} being rendered.
312 * @return An object hash containing the properties required to render the Field.
314 getTemplateArgs: function(field) {
315 var noLabelSep = !field.fieldLabel || field.hideLabel;
318 label: field.fieldLabel,
319 labelStyle: this.getLabelStyle(field.labelStyle),
320 elementStyle: this.elementStyle||'',
321 labelSeparator: noLabelSep ? '' : (Ext.isDefined(field.labelSeparator) ? field.labelSeparator : this.labelSeparator),
322 itemCls: (field.itemCls||this.container.itemCls||'') + (field.hideLabel ? ' x-hide-label' : ''),
323 clearCls: field.clearCls || 'x-form-clear-left'
328 adjustWidthAnchor: function(value, c){
329 if(c.label && !this.isHide(c) && (this.container.labelAlign != 'top')){
330 var adjust = Ext.isIE6 || (Ext.isIE && !Ext.isStrict);
331 return value - this.labelAdjust + (adjust ? -3 : 0);
336 adjustHeightAnchor : function(value, c){
337 if(c.label && !this.isHide(c) && (this.container.labelAlign == 'top')){
338 return value - c.label.getHeight();
344 isValidParent : function(c, target){
345 return target && this.container.getEl().contains(c.getDomPositionEl());
348 <div id="prop-Ext.layout.FormLayout-activeItem"></div>/**
349 * @property activeItem
354 Ext.Container.LAYOUTS['form'] = Ext.layout.FormLayout;</pre>