3 * Copyright(c) 2006-2010 Sencha Inc.
5 * http://www.sencha.com/license
8 * @class Ext.BoxComponent
9 * @extends Ext.Component
10 * <p>Base class for any {@link Ext.Component Component} that is to be sized as a box, using width and height.</p>
11 * <p>BoxComponent provides automatic box model adjustments for sizing and positioning and will work correctly
12 * within the Component rendering model.</p>
13 * <p>A BoxComponent may be created as a custom Component which encapsulates any HTML element, either a pre-existing
14 * element, or one that is created to your specifications at render time. Usually, to participate in layouts,
15 * a Component will need to be a <b>Box</b>Component in order to have its width and height managed.</p>
16 * <p>To use a pre-existing element as a BoxComponent, configure it so that you preset the <b>el</b> property to the
17 * element to reference:<pre><code>
18 var pageHeader = new Ext.BoxComponent({
21 * This may then be {@link Ext.Container#add added} to a {@link Ext.Container Container} as a child item.</p>
22 * <p>To create a BoxComponent based around a HTML element to be created at render time, use the
23 * {@link Ext.Component#autoEl autoEl} config option which takes the form of a
24 * {@link Ext.DomHelper DomHelper} specification:<pre><code>
25 var myImage = new Ext.BoxComponent({
28 src: '/images/my-image.jpg'
32 * @param {Ext.Element/String/Object} config The configuration options.
35 Ext.BoxComponent = Ext.extend(Ext.Component, {
37 // Configs below are used for all Components when rendered by BoxLayout.
40 * <p><b>Note</b>: this config is only used when this Component is rendered
41 * by a Container which has been configured to use a <b>{@link Ext.layout.BoxLayout BoxLayout}.</b>
42 * Each child Component with a <code>flex</code> property will be flexed either vertically (by a VBoxLayout)
43 * or horizontally (by an HBoxLayout) according to the item's <b>relative</b> <code>flex</code> value
44 * compared to the sum of all Components with <code>flex</flex> value specified. Any child items that have
45 * either a <code>flex = 0</code> or <code>flex = undefined</code> will not be 'flexed' (the initial size will not be changed).
47 // Configs below are used for all Components when rendered by AnchorLayout.
49 * @cfg {String} anchor <p><b>Note</b>: this config is only used when this Component is rendered
50 * by a Container which has been configured to use an <b>{@link Ext.layout.AnchorLayout AnchorLayout} (or subclass thereof).</b>
51 * based layout manager, for example:<div class="mdetail-params"><ul>
52 * <li>{@link Ext.form.FormPanel}</li>
53 * <li>specifying <code>layout: 'anchor' // or 'form', or 'absolute'</code></li>
55 * <p>See {@link Ext.layout.AnchorLayout}.{@link Ext.layout.AnchorLayout#anchor anchor} also.</p>
57 // tabTip config is used when a BoxComponent is a child of a TabPanel
59 * @cfg {String} tabTip
60 * <p><b>Note</b>: this config is only used when this BoxComponent is a child item of a TabPanel.</p>
61 * A string to be used as innerHTML (html tags are accepted) to show in a tooltip when mousing over
62 * the associated tab selector element. {@link Ext.QuickTips}.init()
63 * must be called in order for the tips to render.
65 // Configs below are used for all Components when rendered by BorderLayout.
67 * @cfg {String} region <p><b>Note</b>: this config is only used when this BoxComponent is rendered
68 * by a Container which has been configured to use the <b>{@link Ext.layout.BorderLayout BorderLayout}</b>
69 * layout manager (e.g. specifying <tt>layout:'border'</tt>).</p><br>
70 * <p>See {@link Ext.layout.BorderLayout} also.</p>
72 // margins config is used when a BoxComponent is rendered by BorderLayout or BoxLayout.
74 * @cfg {Object} margins <p><b>Note</b>: this config is only used when this BoxComponent is rendered
75 * by a Container which has been configured to use the <b>{@link Ext.layout.BorderLayout BorderLayout}</b>
76 * or one of the two <b>{@link Ext.layout.BoxLayout BoxLayout} subclasses.</b></p>
77 * <p>An object containing margins to apply to this BoxComponent in the
78 * format:</p><pre><code>
81 right: (right margin),
82 bottom: (bottom margin),
85 * <p>May also be a string containing space-separated, numeric margin values. The order of the
86 * sides associated with each value matches the way CSS processes margin values:</p>
87 * <p><div class="mdetail-params"><ul>
88 * <li>If there is only one value, it applies to all sides.</li>
89 * <li>If there are two values, the top and bottom borders are set to the first value and the
90 * right and left are set to the second.</li>
91 * <li>If there are three values, the top is set to the first value, the left and right are set
92 * to the second, and the bottom is set to the third.</li>
93 * <li>If there are four values, they apply to the top, right, bottom, and left, respectively.</li>
95 * <p>Defaults to:</p><pre><code>
96 * {top:0, right:0, bottom:0, left:0}
101 * The local x (left) coordinate for this component if contained within a positioning container.
105 * The local y (top) coordinate for this component if contained within a positioning container.
108 * @cfg {Number} pageX
109 * The page level x coordinate for this component if contained within a positioning container.
112 * @cfg {Number} pageY
113 * The page level y coordinate for this component if contained within a positioning container.
116 * @cfg {Number} height
117 * The height of this component in pixels (defaults to auto).
118 * <b>Note</b> to express this dimension as a percentage or offset see {@link Ext.Component#anchor}.
121 * @cfg {Number} width
122 * The width of this component in pixels (defaults to auto).
123 * <b>Note</b> to express this dimension as a percentage or offset see {@link Ext.Component#anchor}.
126 * @cfg {Number} boxMinHeight
127 * <p>The minimum value in pixels which this BoxComponent will set its height to.</p>
128 * <p><b>Warning:</b> This will override any size management applied by layout managers.</p>
131 * @cfg {Number} boxMinWidth
132 * <p>The minimum value in pixels which this BoxComponent will set its width to.</p>
133 * <p><b>Warning:</b> This will override any size management applied by layout managers.</p>
136 * @cfg {Number} boxMaxHeight
137 * <p>The maximum value in pixels which this BoxComponent will set its height to.</p>
138 * <p><b>Warning:</b> This will override any size management applied by layout managers.</p>
141 * @cfg {Number} boxMaxWidth
142 * <p>The maximum value in pixels which this BoxComponent will set its width to.</p>
143 * <p><b>Warning:</b> This will override any size management applied by layout managers.</p>
146 * @cfg {Boolean} autoHeight
147 * <p>True to use height:'auto', false to use fixed height (or allow it to be managed by its parent
148 * Container's {@link Ext.Container#layout layout manager}. Defaults to false.</p>
149 * <p><b>Note</b>: Although many components inherit this config option, not all will
150 * function as expected with a height of 'auto'. Setting autoHeight:true means that the
151 * browser will manage height based on the element's contents, and that Ext will not manage it at all.</p>
152 * <p>If the <i>browser</i> is managing the height, be aware that resizes performed by the browser in response
153 * to changes within the structure of the Component cannot be detected. Therefore changes to the height might
154 * result in elements needing to be synchronized with the new height. Example:</p><pre><code>
155 var w = new Ext.Window({
160 title: 'Collapse Me',
165 beforecollapse: function() {
168 beforeexpand: function() {
171 collapse: function() {
183 * @cfg {Boolean} autoWidth
184 * <p>True to use width:'auto', false to use fixed width (or allow it to be managed by its parent
185 * Container's {@link Ext.Container#layout layout manager}. Defaults to false.</p>
186 * <p><b>Note</b>: Although many components inherit this config option, not all will
187 * function as expected with a width of 'auto'. Setting autoWidth:true means that the
188 * browser will manage width based on the element's contents, and that Ext will not manage it at all.</p>
189 * <p>If the <i>browser</i> is managing the width, be aware that resizes performed by the browser in response
190 * to changes within the structure of the Component cannot be detected. Therefore changes to the width might
191 * result in elements needing to be synchronized with the new width. For example, where the target element is:</p><pre><code>
192 <div id='grid-container' style='margin-left:25%;width:50%'></div>
194 * A Panel rendered into that target element must listen for browser window resize in order to relay its
195 * child items when the browser changes its width:<pre><code>
196 var myPanel = new Ext.Panel({
197 renderTo: 'grid-container',
198 monitorResize: true, // relay on browser resize
220 * @cfg {Boolean} autoScroll
221 * <code>true</code> to use overflow:'auto' on the components layout element and show scroll bars automatically when
222 * necessary, <code>false</code> to clip any overflowing content (defaults to <code>false</code>).
225 /* // private internal config
226 * {Boolean} deferHeight
227 * True to defer height calculations to an external component, false to allow this component to set its own
228 * height (defaults to false).
232 initComponent : function(){
233 Ext.BoxComponent.superclass.initComponent.call(this);
237 * Fires after the component is resized.
238 * @param {Ext.Component} this
239 * @param {Number} adjWidth The box-adjusted width that was set
240 * @param {Number} adjHeight The box-adjusted height that was set
241 * @param {Number} rawWidth The width that was originally specified
242 * @param {Number} rawHeight The height that was originally specified
247 * Fires after the component is moved.
248 * @param {Ext.Component} this
249 * @param {Number} x The new x position
250 * @param {Number} y The new y position
256 // private, set in afterRender to signify that the component has been rendered
258 // private, used to defer height settings to subclasses
262 * Sets the width and height of this BoxComponent. This method fires the {@link #resize} event. This method can accept
263 * either width and height as separate arguments, or you can pass a size object like <code>{width:10, height:20}</code>.
264 * @param {Mixed} width The new width to set. This may be one of:<div class="mdetail-params"><ul>
265 * <li>A Number specifying the new width in the {@link #getEl Element}'s {@link Ext.Element#defaultUnit}s (by default, pixels).</li>
266 * <li>A String used to set the CSS width style.</li>
267 * <li>A size object in the format <code>{width: widthValue, height: heightValue}</code>.</li>
268 * <li><code>undefined</code> to leave the width unchanged.</li>
270 * @param {Mixed} height The new height to set (not required if a size object is passed as the first arg).
271 * This may be one of:<div class="mdetail-params"><ul>
272 * <li>A Number specifying the new height in the {@link #getEl Element}'s {@link Ext.Element#defaultUnit}s (by default, pixels).</li>
273 * <li>A String used to set the CSS height style. Animation may <b>not</b> be used.</li>
274 * <li><code>undefined</code> to leave the height unchanged.</li>
276 * @return {Ext.BoxComponent} this
278 setSize : function(w, h){
280 // support for standard size objects
281 if(typeof w == 'object'){
285 if (Ext.isDefined(w) && Ext.isDefined(this.boxMinWidth) && (w < this.boxMinWidth)) {
286 w = this.boxMinWidth;
288 if (Ext.isDefined(h) && Ext.isDefined(this.boxMinHeight) && (h < this.boxMinHeight)) {
289 h = this.boxMinHeight;
291 if (Ext.isDefined(w) && Ext.isDefined(this.boxMaxWidth) && (w > this.boxMaxWidth)) {
292 w = this.boxMaxWidth;
294 if (Ext.isDefined(h) && Ext.isDefined(this.boxMaxHeight) && (h > this.boxMaxHeight)) {
295 h = this.boxMaxHeight;
304 // prevent recalcs when not needed
305 if(this.cacheSizes !== false && this.lastSize && this.lastSize.width == w && this.lastSize.height == h){
308 this.lastSize = {width: w, height: h};
309 var adj = this.adjustSize(w, h),
313 if(aw !== undefined || ah !== undefined){ // this code is nasty but performs better with floaters
314 rz = this.getResizeEl();
315 if(!this.deferHeight && aw !== undefined && ah !== undefined){
317 }else if(!this.deferHeight && ah !== undefined){
319 }else if(aw !== undefined){
322 this.onResize(aw, ah, w, h);
323 this.fireEvent('resize', this, aw, ah, w, h);
329 * Sets the width of the component. This method fires the {@link #resize} event.
330 * @param {Mixed} width The new width to set. This may be one of:<div class="mdetail-params"><ul>
331 * <li>A Number specifying the new width in the {@link #getEl Element}'s {@link Ext.Element#defaultUnit defaultUnit}s (by default, pixels).</li>
332 * <li>A String used to set the CSS width style.</li>
334 * @return {Ext.BoxComponent} this
336 setWidth : function(width){
337 return this.setSize(width);
341 * Sets the height of the component. This method fires the {@link #resize} event.
342 * @param {Mixed} height The new height to set. This may be one of:<div class="mdetail-params"><ul>
343 * <li>A Number specifying the new height in the {@link #getEl Element}'s {@link Ext.Element#defaultUnit defaultUnit}s (by default, pixels).</li>
344 * <li>A String used to set the CSS height style.</li>
345 * <li><i>undefined</i> to leave the height unchanged.</li>
347 * @return {Ext.BoxComponent} this
349 setHeight : function(height){
350 return this.setSize(undefined, height);
354 * Gets the current size of the component's underlying element.
355 * @return {Object} An object containing the element's size {width: (element width), height: (element height)}
357 getSize : function(){
358 return this.getResizeEl().getSize();
362 * Gets the current width of the component's underlying element.
365 getWidth : function(){
366 return this.getResizeEl().getWidth();
370 * Gets the current height of the component's underlying element.
373 getHeight : function(){
374 return this.getResizeEl().getHeight();
378 * Gets the current size of the component's underlying element, including space taken by its margins.
379 * @return {Object} An object containing the element's size {width: (element width + left/right margins), height: (element height + top/bottom margins)}
381 getOuterSize : function(){
382 var el = this.getResizeEl();
383 return {width: el.getWidth() + el.getMargins('lr'),
384 height: el.getHeight() + el.getMargins('tb')};
388 * Gets the current XY position of the component's underlying element.
389 * @param {Boolean} local (optional) If true the element's left and top are returned instead of page XY (defaults to false)
390 * @return {Array} The XY position of the element (e.g., [100, 200])
392 getPosition : function(local){
393 var el = this.getPositionEl();
395 return [el.getLeft(true), el.getTop(true)];
397 return this.xy || el.getXY();
401 * Gets the current box measurements of the component's underlying element.
402 * @param {Boolean} local (optional) If true the element's left and top are returned instead of page XY (defaults to false)
403 * @return {Object} box An object in the format {x, y, width, height}
405 getBox : function(local){
406 var pos = this.getPosition(local);
407 var s = this.getSize();
414 * Sets the current box measurements of the component's underlying element.
415 * @param {Object} box An object in the format {x, y, width, height}
416 * @return {Ext.BoxComponent} this
418 updateBox : function(box){
419 this.setSize(box.width, box.height);
420 this.setPagePosition(box.x, box.y);
425 * <p>Returns the outermost Element of this Component which defines the Components overall size.</p>
426 * <p><i>Usually</i> this will return the same Element as <code>{@link #getEl}</code>,
427 * but in some cases, a Component may have some more wrapping Elements around its main
428 * active Element.</p>
429 * <p>An example is a ComboBox. It is encased in a <i>wrapping</i> Element which
430 * contains both the <code><input></code> Element (which is what would be returned
431 * by its <code>{@link #getEl}</code> method, <i>and</i> the trigger button Element.
432 * This Element is returned as the <code>resizeEl</code>.
433 * @return {Ext.Element} The Element which is to be resized by size managing layouts.
435 getResizeEl : function(){
436 return this.resizeEl || this.el;
440 * Sets the overflow on the content element of the component.
441 * @param {Boolean} scroll True to allow the Component to auto scroll.
442 * @return {Ext.BoxComponent} this
444 setAutoScroll : function(scroll){
446 this.getContentTarget().setOverflow(scroll ? 'auto' : '');
448 this.autoScroll = scroll;
453 * Sets the left and top of the component. To set the page XY position instead, use {@link #setPagePosition}.
454 * This method fires the {@link #move} event.
455 * @param {Number} left The new left
456 * @param {Number} top The new top
457 * @return {Ext.BoxComponent} this
459 setPosition : function(x, y){
460 if(x && typeof x[1] == 'number'){
469 var adj = this.adjustPosition(x, y);
470 var ax = adj.x, ay = adj.y;
472 var el = this.getPositionEl();
473 if(ax !== undefined || ay !== undefined){
474 if(ax !== undefined && ay !== undefined){
475 el.setLeftTop(ax, ay);
476 }else if(ax !== undefined){
478 }else if(ay !== undefined){
481 this.onPosition(ax, ay);
482 this.fireEvent('move', this, ax, ay);
488 * Sets the page XY position of the component. To set the left and top instead, use {@link #setPosition}.
489 * This method fires the {@link #move} event.
490 * @param {Number} x The new x position
491 * @param {Number} y The new y position
492 * @return {Ext.BoxComponent} this
494 setPagePosition : function(x, y){
495 if(x && typeof x[1] == 'number'){
504 if(x === undefined || y === undefined){ // cannot translate undefined points
507 var p = this.getPositionEl().translatePoints(x, y);
508 this.setPosition(p.left, p.top);
513 afterRender : function(){
514 Ext.BoxComponent.superclass.afterRender.call(this);
516 this.resizeEl = Ext.get(this.resizeEl);
519 this.positionEl = Ext.get(this.positionEl);
521 this.boxReady = true;
522 Ext.isDefined(this.autoScroll) && this.setAutoScroll(this.autoScroll);
523 this.setSize(this.width, this.height);
524 if(this.x || this.y){
525 this.setPosition(this.x, this.y);
526 }else if(this.pageX || this.pageY){
527 this.setPagePosition(this.pageX, this.pageY);
532 * Force the component's size to recalculate based on the underlying element's current height and width.
533 * @return {Ext.BoxComponent} this
535 syncSize : function(){
536 delete this.lastSize;
537 this.setSize(this.autoWidth ? undefined : this.getResizeEl().getWidth(), this.autoHeight ? undefined : this.getResizeEl().getHeight());
542 * Called after the component is resized, this method is empty by default but can be implemented by any
543 * subclass that needs to perform custom logic after a resize occurs.
544 * @param {Number} adjWidth The box-adjusted width that was set
545 * @param {Number} adjHeight The box-adjusted height that was set
546 * @param {Number} rawWidth The width that was originally specified
547 * @param {Number} rawHeight The height that was originally specified
549 onResize : function(adjWidth, adjHeight, rawWidth, rawHeight){
553 * Called after the component is moved, this method is empty by default but can be implemented by any
554 * subclass that needs to perform custom logic after a move occurs.
555 * @param {Number} x The new x position
556 * @param {Number} y The new y position
558 onPosition : function(x, y){
563 adjustSize : function(w, h){
570 return {width : w, height: h};
574 adjustPosition : function(x, y){
575 return {x : x, y: y};
578 Ext.reg('box', Ext.BoxComponent);
583 * @extends Ext.BoxComponent
584 * <p>Used to provide a sizable space in a layout.</p>
586 * @param {Object} config
588 Ext.Spacer = Ext.extend(Ext.BoxComponent, {
591 Ext.reg('spacer', Ext.Spacer);