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+ <pre class="prettyprint lang-js"><span id='Ext-layout-component-Component'>/**
+</span> * @class Ext.layout.component.Component
+ * @extends Ext.layout.Layout
+ * @private
+ * <p>This class is intended to be extended or created via the <tt><b>{@link Ext.Component#componentLayout layout}</b></tt>
+ * configuration property. See <tt><b>{@link Ext.Component#componentLayout}</b></tt> for additional details.</p>
+ */
+
+Ext.define('Ext.layout.component.Component', {
+
+ /* Begin Definitions */
+
+ extend: 'Ext.layout.Layout',
+
+ /* End Definitions */
+
+ type: 'component',
+
+ monitorChildren: true,
+
+ initLayout : function() {
+ var me = this,
+ owner = me.owner,
+ ownerEl = owner.el;
+
+ if (!me.initialized) {
+ if (owner.frameSize) {
+ me.frameSize = owner.frameSize;
+ }
+ else {
+ owner.frameSize = me.frameSize = {
+ top: 0,
+ left: 0,
+ bottom: 0,
+ right: 0
+ };
+ }
+ }
+ me.callParent(arguments);
+ },
+
+ beforeLayout : function(width, height, isSetSize, layoutOwner) {
+ this.callParent(arguments);
+
+ var me = this,
+ owner = me.owner,
+ ownerCt = owner.ownerCt,
+ layout = owner.layout,
+ isVisible = owner.isVisible(true),
+ ownerElChild = owner.el.child,
+ layoutCollection;
+
+ /*
+ * Do not layout calculatedSized components for fixedLayouts unless the ownerCt == layoutOwner
+ * fixedLayouts means layouts which are never auto/auto in the sizing that comes from their ownerCt.
+ * Currently 3 layouts MAY be auto/auto (Auto, Border, and Box)
+ * The reason for not allowing component layouts is to stop component layouts from things such as Updater and
+ * form Validation.
+ */
+ if (!isSetSize && !(Ext.isNumber(width) && Ext.isNumber(height)) && ownerCt && ownerCt.layout && ownerCt.layout.fixedLayout && ownerCt != layoutOwner) {
+ me.doContainerLayout();
+ return false;
+ }
+
+ // If an ownerCt is hidden, add my reference onto the layoutOnShow stack. Set the needsLayout flag.
+ // If the owner itself is a directly hidden floater, set the needsLayout object on that for when it is shown.
+ if (!isVisible && (owner.hiddenAncestor || owner.floating)) {
+ if (owner.hiddenAncestor) {
+ layoutCollection = owner.hiddenAncestor.layoutOnShow;
+ layoutCollection.remove(owner);
+ layoutCollection.add(owner);
+ }
+ owner.needsLayout = {
+ width: width,
+ height: height,
+ isSetSize: false
+ };
+ }
+
+ if (isVisible && this.needsLayout(width, height)) {
+ me.rawWidth = width;
+ me.rawHeight = height;
+ return owner.beforeComponentLayout(width, height, isSetSize, layoutOwner);
+ }
+ else {
+ return false;
+ }
+ },
+
+<span id='Ext-layout-component-Component-method-needsLayout'> /**
+</span> * Check if the new size is different from the current size and only
+ * trigger a layout if it is necessary.
+ * @param {Mixed} width The new width to set.
+ * @param {Mixed} height The new height to set.
+ */
+ needsLayout : function(width, height) {
+ this.lastComponentSize = this.lastComponentSize || {
+ width: -Infinity,
+ height: -Infinity
+ };
+ return (this.childrenChanged || this.lastComponentSize.width !== width || this.lastComponentSize.height !== height);
+ },
+
+<span id='Ext-layout-component-Component-method-setElementSize'> /**
+</span> * Set the size of any element supporting undefined, null, and values.
+ * @param {Mixed} width The new width to set.
+ * @param {Mixed} height The new height to set.
+ */
+ setElementSize: function(el, width, height) {
+ if (width !== undefined && height !== undefined) {
+ el.setSize(width, height);
+ }
+ else if (height !== undefined) {
+ el.setHeight(height);
+ }
+ else if (width !== undefined) {
+ el.setWidth(width);
+ }
+ },
+
+<span id='Ext-layout-component-Component-method-getTarget'> /**
+</span> * Returns the owner component's resize element.
+ * @return {Ext.core.Element}
+ */
+ getTarget : function() {
+ return this.owner.el;
+ },
+
+<span id='Ext-layout-component-Component-method-getRenderTarget'> /**
+</span> * <p>Returns the element into which rendering must take place. Defaults to the owner Component's encapsulating element.</p>
+ * May be overridden in Component layout managers which implement an inner element.
+ * @return {Ext.core.Element}
+ */
+ getRenderTarget : function() {
+ return this.owner.el;
+ },
+
+<span id='Ext-layout-component-Component-method-setTargetSize'> /**
+</span> * Set the size of the target element.
+ * @param {Mixed} width The new width to set.
+ * @param {Mixed} height The new height to set.
+ */
+ setTargetSize : function(width, height) {
+ var me = this;
+ me.setElementSize(me.owner.el, width, height);
+
+ if (me.owner.frameBody) {
+ var targetInfo = me.getTargetInfo(),
+ padding = targetInfo.padding,
+ border = targetInfo.border,
+ frameSize = me.frameSize;
+
+ me.setElementSize(me.owner.frameBody,
+ Ext.isNumber(width) ? (width - frameSize.left - frameSize.right - padding.left - padding.right - border.left - border.right) : width,
+ Ext.isNumber(height) ? (height - frameSize.top - frameSize.bottom - padding.top - padding.bottom - border.top - border.bottom) : height
+ );
+ }
+
+ me.autoSized = {
+ width: !Ext.isNumber(width),
+ height: !Ext.isNumber(height)
+ };
+
+ me.lastComponentSize = {
+ width: width,
+ height: height
+ };
+ },
+
+ getTargetInfo : function() {
+ if (!this.targetInfo) {
+ var target = this.getTarget(),
+ body = this.owner.getTargetEl();
+
+ this.targetInfo = {
+ padding: {
+ top: target.getPadding('t'),
+ right: target.getPadding('r'),
+ bottom: target.getPadding('b'),
+ left: target.getPadding('l')
+ },
+ border: {
+ top: target.getBorderWidth('t'),
+ right: target.getBorderWidth('r'),
+ bottom: target.getBorderWidth('b'),
+ left: target.getBorderWidth('l')
+ },
+ bodyMargin: {
+ top: body.getMargin('t'),
+ right: body.getMargin('r'),
+ bottom: body.getMargin('b'),
+ left: body.getMargin('l')
+ }
+ };
+ }
+ return this.targetInfo;
+ },
+
+ // Start laying out UP the ownerCt's layout when flagged to do so.
+ doOwnerCtLayouts: function() {
+ var owner = this.owner,
+ ownerCt = owner.ownerCt,
+ ownerCtComponentLayout, ownerCtContainerLayout;
+
+ if (!ownerCt) {
+ return;
+ }
+
+ ownerCtComponentLayout = ownerCt.componentLayout;
+ ownerCtContainerLayout = ownerCt.layout;
+
+ if (!owner.floating && ownerCtComponentLayout && ownerCtComponentLayout.monitorChildren && !ownerCtComponentLayout.layoutBusy) {
+ if (!ownerCt.suspendLayout && ownerCtContainerLayout && !ownerCtContainerLayout.layoutBusy) {
+ // AutoContainer Layout and Dock with auto in some dimension
+ if (ownerCtContainerLayout.bindToOwnerCtComponent === true) {
+ ownerCt.doComponentLayout();
+ }
+ // Box Layouts
+ else if (ownerCtContainerLayout.bindToOwnerCtContainer === true) {
+ ownerCtContainerLayout.layout();
+ }
+ }
+ }
+ },
+
+ doContainerLayout: function() {
+ var me = this,
+ owner = me.owner,
+ ownerCt = owner.ownerCt,
+ layout = owner.layout,
+ ownerCtComponentLayout;
+
+ // Run the container layout if it exists (layout for child items)
+ // **Unless automatic laying out is suspended, or the layout is currently running**
+ if (!owner.suspendLayout && layout && layout.isLayout && !layout.layoutBusy) {
+ layout.layout();
+ }
+
+ // Tell the ownerCt that it's child has changed and can be re-layed by ignoring the lastComponentSize cache.
+ if (ownerCt && ownerCt.componentLayout) {
+ ownerCtComponentLayout = ownerCt.componentLayout;
+ if (!owner.floating && ownerCtComponentLayout.monitorChildren && !ownerCtComponentLayout.layoutBusy) {
+ ownerCtComponentLayout.childrenChanged = true;
+ }
+ }
+ },
+
+ afterLayout : function(width, height, isSetSize, layoutOwner) {
+ this.doContainerLayout();
+ this.owner.afterComponentLayout(width, height, isSetSize, layoutOwner);
+ }
+});
+</pre>
+</body>
+</html>
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