-<html>\r
-<head>\r
- <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> \r
- <title>The source code</title>\r
- <link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" />\r
- <script type="text/javascript" src="../resources/prettify/prettify.js"></script>\r
-</head>\r
-<body onload="prettyPrint();">\r
- <pre class="prettyprint lang-js"><div id="cls-Ext.layout.BoxLayout"></div>/**
+<html>
+<head>
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+ <title>The source code</title>
+ <link href="../resources/prettify/prettify.css" type="text/css" rel="stylesheet" />
+ <script type="text/javascript" src="../resources/prettify/prettify.js"></script>
+</head>
+<body onload="prettyPrint();">
+ <pre class="prettyprint lang-js">/*!
+ * Ext JS Library 3.3.1
+ * Copyright(c) 2006-2010 Sencha Inc.
+ * licensing@sencha.com
+ * http://www.sencha.com/license
+ */
+<div id="cls-Ext.layout.BoxLayout"></div>/**
* @class Ext.layout.BoxLayout
* @extends Ext.layout.ContainerLayout
* <p>Base Class for HBoxLayout and VBoxLayout Classes. Generally it should not need to be used directly.</p>
constructor : function(config){
Ext.layout.BoxLayout.superclass.constructor.call(this, config);
- if(Ext.isString(this.defaultMargins)){
+
+ if (Ext.isString(this.defaultMargins)) {
this.defaultMargins = this.parseMargins(this.defaultMargins);
}
+
+ var handler = this.overflowHandler;
+
+ if (typeof handler == 'string') {
+ handler = {
+ type: handler
+ };
+ }
+
+ var handlerType = 'none';
+ if (handler && handler.type != undefined) {
+ handlerType = handler.type;
+ }
+
+ var constructor = Ext.layout.boxOverflow[handlerType];
+ if (constructor[this.type]) {
+ constructor = constructor[this.type];
+ }
+
+ this.overflowHandler = new constructor(this, handler);
},
- // private
- isValidParent : function(c, target){
- return this.innerCt && c.getPositionEl().dom.parentNode == this.innerCt.dom;
- },
+ /**
+ * @private
+ * Runs the child box calculations and caches them in childBoxCache. Subclasses can used these cached values
+ * when laying out
+ */
+ onLayout: function(container, target) {
+ Ext.layout.BoxLayout.superclass.onLayout.call(this, container, target);
- // private
- renderAll : function(ct, target){
- if(!this.innerCt){
- // the innerCt prevents wrapping and shuffling while
- // the container is resizing
- this.innerCt = target.createChild({cls:this.innerCls});
- this.padding = this.parseMargins(this.padding);
+ var tSize = this.getLayoutTargetSize(),
+ items = this.getVisibleItems(container),
+ calcs = this.calculateChildBoxes(items, tSize),
+ boxes = calcs.boxes,
+ meta = calcs.meta;
+
+ //invoke the overflow handler, if one is configured
+ if (tSize.width > 0) {
+ var handler = this.overflowHandler,
+ method = meta.tooNarrow ? 'handleOverflow' : 'clearOverflow';
+
+ var results = handler[method](calcs, tSize);
+
+ if (results) {
+ if (results.targetSize) {
+ tSize = results.targetSize;
+ }
+
+ if (results.recalculate) {
+ items = this.getVisibleItems(container);
+ calcs = this.calculateChildBoxes(items, tSize);
+ boxes = calcs.boxes;
+ }
+ }
}
- Ext.layout.BoxLayout.superclass.renderAll.call(this, ct, this.innerCt);
- },
+
+ /**
+ * @private
+ * @property layoutTargetLastSize
+ * @type Object
+ * Private cache of the last measured size of the layout target. This should never be used except by
+ * BoxLayout subclasses during their onLayout run.
+ */
+ this.layoutTargetLastSize = tSize;
+
+ /**
+ * @private
+ * @property childBoxCache
+ * @type Array
+ * Array of the last calculated height, width, top and left positions of each visible rendered component
+ * within the Box layout.
+ */
+ this.childBoxCache = calcs;
+
+ this.updateInnerCtSize(tSize, calcs);
+ this.updateChildBoxes(boxes);
- onLayout : function(ct, target){
- this.renderAll(ct, target);
+ // Putting a box layout into an overflowed container is NOT correct and will make a second layout pass necessary.
+ this.handleTargetOverflow(tSize, container, target);
},
- getLayoutTargetSize : function(){
- var target = this.container.getLayoutTarget(), ret;
- if (target) {
- ret = target.getViewSize();
- ret.width -= target.getPadding('lr');
- ret.height -= target.getPadding('tb');
+ <div id="method-Ext.layout.BoxLayout-updateChildBoxes"></div>/**
+ * Resizes and repositions each child component
+ * @param {Array} boxes The box measurements
+ */
+ updateChildBoxes: function(boxes) {
+ for (var i = 0, length = boxes.length; i < length; i++) {
+ var box = boxes[i],
+ comp = box.component;
+
+ if (box.dirtySize) {
+ comp.setSize(box.width, box.height);
+ }
+ // Don't set positions to NaN
+ if (isNaN(box.left) || isNaN(box.top)) {
+ continue;
+ }
+
+ comp.setPosition(box.left, box.top);
}
- return ret;
},
- // private
- renderItem : function(c){
- if(Ext.isString(c.margins)){
- c.margins = this.parseMargins(c.margins);
- }else if(!c.margins){
- c.margins = this.defaultMargins;
- }
- Ext.layout.BoxLayout.superclass.renderItem.apply(this, arguments);
- }
-});
-
-<div id="cls-Ext.layout.VBoxLayout"></div>/**
- * @class Ext.layout.VBoxLayout
- * @extends Ext.layout.BoxLayout
- * <p>A layout that arranges items vertically down a Container. This layout optionally divides available vertical
- * space between child items containing a numeric <code>flex</code> configuration.</p>
- * This layout may also be used to set the widths of child items by configuring it with the {@link #align} option.
- */
-Ext.layout.VBoxLayout = Ext.extend(Ext.layout.BoxLayout, {
- <div id="cfg-Ext.layout.VBoxLayout-align"></div>/**
- * @cfg {String} align
- * Controls how the child items of the container are aligned. Acceptable configuration values for this
- * property are:
- * <div class="mdetail-params"><ul>
- * <li><b><tt>left</tt></b> : <b>Default</b><div class="sub-desc">child items are aligned horizontally
- * at the <b>left</b> side of the container</div></li>
- * <li><b><tt>center</tt></b> : <div class="sub-desc">child items are aligned horizontally at the
- * <b>mid-width</b> of the container</div></li>
- * <li><b><tt>stretch</tt></b> : <div class="sub-desc">child items are stretched horizontally to fill
- * the width of the container</div></li>
- * <li><b><tt>stretchmax</tt></b> : <div class="sub-desc">child items are stretched horizontally to
- * the size of the largest item.</div></li>
- * </ul></div>
- */
- align : 'left', // left, center, stretch, strechmax
- type: 'vbox',
- <div id="cfg-Ext.layout.VBoxLayout-pack"></div>/**
- * @cfg {String} pack
- * Controls how the child items of the container are packed together. Acceptable configuration values
- * for this property are:
- * <div class="mdetail-params"><ul>
- * <li><b><tt>start</tt></b> : <b>Default</b><div class="sub-desc">child items are packed together at
- * <b>top</b> side of container</div></li>
- * <li><b><tt>center</tt></b> : <div class="sub-desc">child items are packed together at
- * <b>mid-height</b> of container</div></li>
- * <li><b><tt>end</tt></b> : <div class="sub-desc">child items are packed together at <b>bottom</b>
- * side of container</div></li>
- * </ul></div>
- */
- <div id="cfg-Ext.layout.VBoxLayout-flex"></div>/**
- * @cfg {Number} flex
- * This configuation option is to be applied to <b>child <tt>items</tt></b> of the container managed
- * by this layout. Each child item with a <tt>flex</tt> property will be flexed <b>vertically</b>
- * according to each item's <b>relative</b> <tt>flex</tt> value compared to the sum of all items with
- * a <tt>flex</tt> value specified. Any child items that have either a <tt>flex = 0</tt> or
- * <tt>flex = undefined</tt> will not be 'flexed' (the initial size will not be changed).
+ /**
+ * @private
+ * Called by onRender just before the child components are sized and positioned. This resizes the innerCt
+ * to make sure all child items fit within it. We call this before sizing the children because if our child
+ * items are larger than the previous innerCt size the browser will insert scrollbars and then remove them
+ * again immediately afterwards, giving a performance hit.
+ * Subclasses should provide an implementation.
+ * @param {Object} currentSize The current height and width of the innerCt
+ * @param {Array} calculations The new box calculations of all items to be laid out
*/
+ updateInnerCtSize: function(tSize, calcs) {
+ var align = this.align,
+ padding = this.padding,
+ width = tSize.width,
+ height = tSize.height;
+
+ if (this.type == 'hbox') {
+ var innerCtWidth = width,
+ innerCtHeight = calcs.meta.maxHeight + padding.top + padding.bottom;
- // private
- onLayout : function(ct, target){
- Ext.layout.VBoxLayout.superclass.onLayout.call(this, ct, target);
-
- var cs = this.getRenderedItems(ct), csLen = cs.length,
- c, i, cm, ch, margin, cl, diff, aw, availHeight,
- size = this.getLayoutTargetSize(),
- w = size.width,
- h = size.height - this.scrollOffset,
- l = this.padding.left,
- t = this.padding.top,
- isStart = this.pack == 'start',
- extraHeight = 0,
- maxWidth = 0,
- totalFlex = 0,
- usedHeight = 0,
- idx = 0,
- heights = [],
- restore = [];
-
- // Do only width calculations and apply those first, as they can affect height
- for (i = 0 ; i < csLen; i++) {
- c = cs[i];
- cm = c.margins;
- margin = cm.top + cm.bottom;
- // Max height for align
- maxWidth = Math.max(maxWidth, c.getWidth() + cm.left + cm.right);
- }
-
- var innerCtWidth = maxWidth + this.padding.left + this.padding.right;
- switch(this.align){
- case 'stretch':
- this.innerCt.setSize(w, h);
- break;
- case 'stretchmax':
- case 'left':
- this.innerCt.setSize(innerCtWidth, h);
- break;
- case 'center':
- this.innerCt.setSize(w = Math.max(w, innerCtWidth), h);
- break;
- }
-
- var availableWidth = Math.max(0, w - this.padding.left - this.padding.right);
- // Apply widths
- for (i = 0 ; i < csLen; i++) {
- c = cs[i];
- cm = c.margins;
- if(this.align == 'stretch'){
- c.setWidth(((w - (this.padding.left + this.padding.right)) - (cm.left + cm.right)).constrain(
- c.minWidth || 0, c.maxWidth || 1000000));
- }else if(this.align == 'stretchmax'){
- c.setWidth((maxWidth - (cm.left + cm.right)).constrain(
- c.minWidth || 0, c.maxWidth || 1000000));
- }else if(isStart && c.flex){
- c.setWidth();
+ if (align == 'stretch') {
+ innerCtHeight = height;
+ } else if (align == 'middle') {
+ innerCtHeight = Math.max(height, innerCtHeight);
}
+ } else {
+ var innerCtHeight = height,
+ innerCtWidth = calcs.meta.maxWidth + padding.left + padding.right;
- }
-
- // Height calculations
- for (i = 0 ; i < csLen; i++) {
- c = cs[i];
- // Total of all the flex values
- totalFlex += c.flex || 0;
- // Don't run height calculations on flexed items
- if (!c.flex) {
- // Render and layout sub-containers without a flex or height, once
- if (!c.height && !c.hasLayout && c.doLayout) {
- c.doLayout();
- }
- ch = c.getHeight();
- } else {
- ch = 0;
+ if (align == 'stretch') {
+ innerCtWidth = width;
+ } else if (align == 'center') {
+ innerCtWidth = Math.max(width, innerCtWidth);
}
-
- cm = c.margins;
- // Determine how much height is available to flex
- extraHeight += ch + cm.top + cm.bottom;
}
- // Final avail height calc
- availHeight = Math.max(0, (h - extraHeight - this.padding.top - this.padding.bottom));
- var leftOver = availHeight;
- for (i = 0 ; i < csLen; i++) {
- c = cs[i];
- if(isStart && c.flex){
- ch = Math.floor(availHeight * (c.flex / totalFlex));
- leftOver -= ch;
- heights.push(ch);
- }
- }
- if(this.pack == 'center'){
- t += availHeight ? availHeight / 2 : 0;
- }else if(this.pack == 'end'){
- t += availHeight;
- }
- idx = 0;
- // Apply heights
- for (i = 0 ; i < csLen; i++) {
- c = cs[i];
- cm = c.margins;
- t += cm.top;
- aw = availableWidth;
- cl = l + cm.left // default left pos
+ this.innerCt.setSize(innerCtWidth || undefined, innerCtHeight || undefined);
+ },
- // Adjust left pos for centering
- if(this.align == 'center'){
- if((diff = availableWidth - (c.getWidth() + cm.left + cm.right)) > 0){
- cl += (diff/2);
- aw -= diff;
- }
- }
+ /**
+ * @private
+ * This should be called after onLayout of any BoxLayout subclass. If the target's overflow is not set to 'hidden',
+ * we need to lay out a second time because the scrollbars may have modified the height and width of the layout
+ * target. Having a Box layout inside such a target is therefore not recommended.
+ * @param {Object} previousTargetSize The size and height of the layout target before we just laid out
+ * @param {Ext.Container} container The container
+ * @param {Ext.Element} target The target element
+ */
+ handleTargetOverflow: function(previousTargetSize, container, target) {
+ var overflow = target.getStyle('overflow');
- c.setPosition(cl, t);
- if(isStart && c.flex){
- ch = Math.max(0, heights[idx++] + (leftOver-- > 0 ? 1 : 0));
- c.setSize(aw, ch);
- }else{
- ch = c.getHeight();
- }
- t += ch + cm.bottom;
- }
- // Putting a box layout into an overflowed container is NOT correct and will make a second layout pass necessary.
- if (i = target.getStyle('overflow') && i != 'hidden' && !this.adjustmentPass) {
- var ts = this.getLayoutTargetSize();
- if (ts.width != size.width || ts.height != size.height){
+ if (overflow && overflow != 'hidden' &&!this.adjustmentPass) {
+ var newTargetSize = this.getLayoutTargetSize();
+ if (newTargetSize.width != previousTargetSize.width || newTargetSize.height != previousTargetSize.height){
this.adjustmentPass = true;
- this.onLayout(ct, target);
+ this.onLayout(container, target);
}
}
+
delete this.adjustmentPass;
- }
-});
+ },
-Ext.Container.LAYOUTS.vbox = Ext.layout.VBoxLayout;
+ // private
+ isValidParent : function(c, target) {
+ return this.innerCt && c.getPositionEl().dom.parentNode == this.innerCt.dom;
+ },
-<div id="cls-Ext.layout.HBoxLayout"></div>/**
- * @class Ext.layout.HBoxLayout
- * @extends Ext.layout.BoxLayout
- * <p>A layout that arranges items horizontally across a Container. This layout optionally divides available horizontal
- * space between child items containing a numeric <code>flex</code> configuration.</p>
- * This layout may also be used to set the heights of child items by configuring it with the {@link #align} option.
- */
-Ext.layout.HBoxLayout = Ext.extend(Ext.layout.BoxLayout, {
- <div id="cfg-Ext.layout.HBoxLayout-align"></div>/**
- * @cfg {String} align
- * Controls how the child items of the container are aligned. Acceptable configuration values for this
- * property are:
- * <div class="mdetail-params"><ul>
- * <li><b><tt>top</tt></b> : <b>Default</b><div class="sub-desc">child items are aligned vertically
- * at the <b>top</b> of the container</div></li>
- * <li><b><tt>middle</tt></b> : <div class="sub-desc">child items are aligned vertically in the
- * <b>middle</b> of the container</div></li>
- * <li><b><tt>stretch</tt></b> : <div class="sub-desc">child items are stretched vertically to fill
- * the height of the container</div></li>
- * <li><b><tt>stretchmax</tt></b> : <div class="sub-desc">child items are stretched vertically to
- * the height of the largest item.</div></li>
- */
- align : 'top', // top, middle, stretch, strechmax
- type: 'hbox',
- <div id="cfg-Ext.layout.HBoxLayout-pack"></div>/**
- * @cfg {String} pack
- * Controls how the child items of the container are packed together. Acceptable configuration values
- * for this property are:
- * <div class="mdetail-params"><ul>
- * <li><b><tt>start</tt></b> : <b>Default</b><div class="sub-desc">child items are packed together at
- * <b>left</b> side of container</div></li>
- * <li><b><tt>center</tt></b> : <div class="sub-desc">child items are packed together at
- * <b>mid-width</b> of container</div></li>
- * <li><b><tt>end</tt></b> : <div class="sub-desc">child items are packed together at <b>right</b>
- * side of container</div></li>
- * </ul></div>
- */
- <div id="cfg-Ext.layout.HBoxLayout-flex"></div>/**
- * @cfg {Number} flex
- * This configuation option is to be applied to <b>child <tt>items</tt></b> of the container managed
- * by this layout. Each child item with a <tt>flex</tt> property will be flexed <b>horizontally</b>
- * according to each item's <b>relative</b> <tt>flex</tt> value compared to the sum of all items with
- * a <tt>flex</tt> value specified. Any child items that have either a <tt>flex = 0</tt> or
- * <tt>flex = undefined</tt> will not be 'flexed' (the initial size will not be changed).
+ /**
+ * @private
+ * Returns all items that are both rendered and visible
+ * @return {Array} All matching items
*/
+ getVisibleItems: function(ct) {
+ var ct = ct || this.container,
+ t = ct.getLayoutTarget(),
+ cti = ct.items.items,
+ len = cti.length,
- // private
- onLayout : function(ct, target){
- Ext.layout.HBoxLayout.superclass.onLayout.call(this, ct, target);
+ i, c, items = [];
- var cs = this.getRenderedItems(ct), csLen = cs.length,
- c, i, cm, cw, ch, diff, availWidth,
- size = this.getLayoutTargetSize(),
- w = size.width - this.scrollOffset,
- h = size.height,
- l = this.padding.left,
- t = this.padding.top,
- isStart = this.pack == 'start',
- isRestore = ['stretch', 'stretchmax'].indexOf(this.align) == -1,
- extraWidth = 0,
- maxHeight = 0,
- totalFlex = 0,
- usedWidth = 0;
-
- for (i = 0 ; i < csLen; i++) {
- c = cs[i];
- // Total of all the flex values
- totalFlex += c.flex || 0;
- // Don't run width calculations on flexed items
- if (!c.flex) {
- // Render and layout sub-containers without a flex or width, once
- if (!c.width && !c.hasLayout && c.doLayout) {
- c.doLayout();
- }
- cw = c.getWidth();
- } else {
- cw = 0;
+ for (i = 0; i < len; i++) {
+ if((c = cti[i]).rendered && this.isValidParent(c, t) && c.hidden !== true && c.collapsed !== true && c.shouldLayout !== false){
+ items.push(c);
}
- cm = c.margins;
- // Determine how much width is available to flex
- extraWidth += cw + cm.left + cm.right;
- // Max height for align
- maxHeight = Math.max(maxHeight, c.getHeight() + cm.top + cm.bottom);
}
- // Final avail width calc
- availWidth = Math.max(0, (w - extraWidth - this.padding.left - this.padding.right));
- var innerCtHeight = maxHeight + this.padding.top + this.padding.bottom;
- switch(this.align){
- case 'stretch':
- this.innerCt.setSize(w, h);
- break;
- case 'stretchmax':
- case 'top':
- this.innerCt.setSize(w, innerCtHeight);
- break;
- case 'middle':
- this.innerCt.setSize(w, h = Math.max(h, innerCtHeight));
- break;
+ return items;
+ },
+
+ // private
+ renderAll : function(ct, target) {
+ if (!this.innerCt) {
+ // the innerCt prevents wrapping and shuffling while the container is resizing
+ this.innerCt = target.createChild({cls:this.innerCls});
+ this.padding = this.parseMargins(this.padding);
}
+ Ext.layout.BoxLayout.superclass.renderAll.call(this, ct, this.innerCt);
+ },
- var leftOver = availWidth,
- widths = [],
- restore = [],
- idx = 0,
- availableHeight = Math.max(0, h - this.padding.top - this.padding.bottom);
+ getLayoutTargetSize : function() {
+ var target = this.container.getLayoutTarget(), ret;
+
+ if (target) {
+ ret = target.getViewSize();
- for (i = 0 ; i < csLen; i++) {
- c = cs[i];
- if(isStart && c.flex){
- cw = Math.floor(availWidth * (c.flex / totalFlex));
- leftOver -= cw;
- widths.push(cw);
+ // IE in strict mode will return a width of 0 on the 1st pass of getViewSize.
+ // Use getStyleSize to verify the 0 width, the adjustment pass will then work properly
+ // with getViewSize
+ if (Ext.isIE && Ext.isStrict && ret.width == 0){
+ ret = target.getStyleSize();
}
- }
- if(this.pack == 'center'){
- l += availWidth ? availWidth / 2 : 0;
- }else if(this.pack == 'end'){
- l += availWidth;
- }
- for (i = 0 ; i < csLen; i++) {
- c = cs[i];
- cm = c.margins;
- l += cm.left;
- c.setPosition(l, t + cm.top);
- if(isStart && c.flex){
- cw = Math.max(0, widths[idx++] + (leftOver-- > 0 ? 1 : 0));
- if(isRestore){
- restore.push(c.getHeight());
- }
- c.setSize(cw, availableHeight);
- }else{
- cw = c.getWidth();
- }
- l += cw + cm.right;
+ ret.width -= target.getPadding('lr');
+ ret.height -= target.getPadding('tb');
}
+
+ return ret;
+ },
- idx = 0;
- for (i = 0 ; i < csLen; i++) {
- c = cs[i];
- cm = c.margins;
- ch = c.getHeight();
- if(isStart && c.flex){
- ch = restore[idx++];
- }
- if(this.align == 'stretch'){
- c.setHeight(((h - (this.padding.top + this.padding.bottom)) - (cm.top + cm.bottom)).constrain(
- c.minHeight || 0, c.maxHeight || 1000000));
- }else if(this.align == 'stretchmax'){
- c.setHeight((maxHeight - (cm.top + cm.bottom)).constrain(
- c.minHeight || 0, c.maxHeight || 1000000));
- }else{
- if(this.align == 'middle'){
- diff = availableHeight - (ch + cm.top + cm.bottom);
- ch = t + cm.top + (diff/2);
- if(diff > 0){
- c.setPosition(c.x, ch);
- }
- }
- if(isStart && c.flex){
- c.setHeight(ch);
- }
- }
- }
- // Putting a box layout into an overflowed container is NOT correct and will make a second layout pass necessary.
- if (i = target.getStyle('overflow') && i != 'hidden' && !this.adjustmentPass) {
- var ts = this.getLayoutTargetSize();
- if (ts.width != size.width || ts.height != size.height){
- this.adjustmentPass = true;
- this.onLayout(ct, target);
- }
+ // private
+ renderItem : function(c) {
+ if(Ext.isString(c.margins)){
+ c.margins = this.parseMargins(c.margins);
+ }else if(!c.margins){
+ c.margins = this.defaultMargins;
}
- delete this.adjustmentPass;
+ Ext.layout.BoxLayout.superclass.renderItem.apply(this, arguments);
+ },
+
+ /**
+ * @private
+ */
+ destroy: function() {
+ Ext.destroy(this.overflowHandler);
+
+ Ext.layout.BoxLayout.superclass.destroy.apply(this, arguments);
}
});
-Ext.Container.LAYOUTS.hbox = Ext.layout.HBoxLayout;
-</pre> \r
-</body>\r
+
+
+Ext.ns('Ext.layout.boxOverflow');
+
+<div id="cls-Ext.layout.boxOverflow.None"></div>/**
+ * @class Ext.layout.boxOverflow.None
+ * @extends Object
+ * Base class for Box Layout overflow handlers. These specialized classes are invoked when a Box Layout
+ * (either an HBox or a VBox) has child items that are either too wide (for HBox) or too tall (for VBox)
+ * for its container.
+ */
+
+Ext.layout.boxOverflow.None = Ext.extend(Object, {
+ constructor: function(layout, config) {
+ this.layout = layout;
+
+ Ext.apply(this, config || {});
+ },
+
+ handleOverflow: Ext.emptyFn,
+
+ clearOverflow: Ext.emptyFn
+});
+
+
+Ext.layout.boxOverflow.none = Ext.layout.boxOverflow.None;
+</pre>
+</body>
</html>
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git.ithinksw.org / extjs.git / blobdiff