Upgrade to ExtJS 4.0.1 - Released 05/18/2011

[extjs.git] / docs / source / TextArea2.html
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+<!DOCTYPE html>
+<html>
+<head>
+  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+  <title>The source code</title>
+  <link href="../prettify/prettify.css" type="text/css" rel="stylesheet" />
+  <script type="text/javascript" src="../prettify/prettify.js"></script>
+  <style type="text/css">
+    .highlight { display: block; background-color: #ddd; }
+  </style>
+  <script type="text/javascript">
+    function highlight() {
+      document.getElementById(location.hash.replace(/#/, "")).className = "highlight";
+    }
+  </script>
+</head>
+<body onload="prettyPrint(); highlight();">
+  <pre class="prettyprint lang-js"><span id='Ext-layout-component-field-TextArea'>/**
+</span> * @private
+ * @class Ext.layout.component.field.TextArea
+ * @extends Ext.layout.component.field.Field
+ * Layout class for {@link Ext.form.field.TextArea} fields. Handles sizing the textarea field.
+ */
+Ext.define('Ext.layout.component.field.TextArea', {
+    extend: 'Ext.layout.component.field.Text',
+    alias: 'layout.textareafield',
+
+    type: 'textareafield',
+
+
+<span id='Ext-layout-component-field-TextArea-method-adjustForGrow'>    /**
+</span>     * Given the target bodyEl dimensions, adjust them if necessary to return the correct final
+     * size based on the text field's {@link Ext.form.field.Text#grow grow config}. Overrides the
+     * textfield layout's implementation to handle height rather than width.
+     * @param {Number} width The bodyEl width
+     * @param {Number} height The bodyEl height
+     * @return {Array} [inputElWidth, inputElHeight]
+     */
+    adjustForGrow: function(width, height) {
+        var me = this,
+            owner = me.owner,
+            inputEl, value, max,
+            curWidth, curHeight, calcHeight,
+            result = [width, height];
+
+        if (owner.grow) {
+            inputEl = owner.inputEl;
+            curWidth = inputEl.getWidth(true); //subtract border/padding to get the available width for the text
+            curHeight = inputEl.getHeight();
+
+            // Get and normalize the field value for measurement
+            value = inputEl.dom.value || '&amp;#160;';
+            value += owner.growAppend;
+
+            // Translate newlines to &lt;br&gt; tags
+            value = value.replace(/\n/g, '&lt;br&gt;');
+
+            // Find the height that contains the whole text value
+            calcHeight = Ext.util.TextMetrics.measure(inputEl, value, curWidth).height +
+                         inputEl.getBorderWidth(&quot;tb&quot;) + inputEl.getPadding(&quot;tb&quot;);
+
+            // Constrain
+            max = owner.growMax;
+            if (Ext.isNumber(height)) {
+                max = Math.min(max, height);
+            }
+            result[1] = Ext.Number.constrain(calcHeight, owner.growMin, max);
+        }
+
+        return result;
+    }
+
+});</pre>
+</body>
+</html>