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<pre class="prettyprint lang-js"><div id="cls-Ext.XTemplate"></div>/**
* @class Ext.XTemplate
* @extends Ext.Template
- * <p>A template class that supports advanced functionality like autofilling arrays, conditional processing with
- * basic comparison operators, sub-templates, basic math function support, special built-in template variables,
- * inline code execution and more. XTemplate also provides the templating mechanism built into {@link Ext.DataView}.</p>
- * <p>XTemplate supports many special tags and built-in operators that aren't defined as part of the API, but are
- * supported in the templates that can be created. The following examples demonstrate all of the supported features.
- * This is the data object used for reference in each code example:</p>
+ * <p>A template class that supports advanced functionality like:<div class="mdetail-params"><ul>
+ * <li>Autofilling arrays using templates and sub-templates</li>
+ * <li>Conditional processing with basic comparison operators</li>
+ * <li>Basic math function support</li>
+ * <li>Execute arbitrary inline code with special built-in template variables</li>
+ * <li>Custom member functions</li>
+ * <li>Many special tags and built-in operators that aren't defined as part of
+ * the API, but are supported in the templates that can be created</li>
+ * </ul></div></p>
+ * <p>XTemplate provides the templating mechanism built into:<div class="mdetail-params"><ul>
+ * <li>{@link Ext.DataView}</li>
+ * <li>{@link Ext.ListView}</li>
+ * <li>{@link Ext.form.ComboBox}</li>
+ * <li>{@link Ext.grid.TemplateColumn}</li>
+ * <li>{@link Ext.grid.GroupingView}</li>
+ * <li>{@link Ext.menu.Item}</li>
+ * <li>{@link Ext.layout.MenuLayout}</li>
+ * <li>{@link Ext.ColorPalette}</li>
+ * </ul></div></p>
+ *
+ * <p>For example usage {@link #XTemplate see the constructor}.</p>
+ *
+ * @constructor
+ * The {@link Ext.Template#Template Ext.Template constructor} describes
+ * the acceptable parameters to pass to the constructor. The following
+ * examples demonstrate all of the supported features.</p>
+ *
+ * <div class="mdetail-params"><ul>
+ *
+ * <li><b><u>Sample Data</u></b>
+ * <div class="sub-desc">
+ * <p>This is the data object used for reference in each code example:</p>
* <pre><code>
var data = {
name: 'Jack Slocum',
}]
};
* </code></pre>
- * <p><b>Auto filling of arrays</b><br/>The <tt>tpl</tt> tag and the <tt>for</tt> operator are used
- * to process the provided data object. If <tt>for="."</tt> is specified, the data object provided
- * is examined. If the variable in <tt>for</tt> is an array, it will auto-fill, repeating the template
- * block inside the <tt>tpl</tt> tag for each item in the array:</p>
+ * </div>
+ * </li>
+ *
+ *
+ * <li><b><u>Auto filling of arrays</u></b>
+ * <div class="sub-desc">
+ * <p>The <b><tt>tpl</tt></b> tag and the <b><tt>for</tt></b> operator are used
+ * to process the provided data object:
+ * <ul>
+ * <li>If the value specified in <tt>for</tt> is an array, it will auto-fill,
+ * repeating the template block inside the <tt>tpl</tt> tag for each item in the
+ * array.</li>
+ * <li>If <tt>for="."</tt> is specified, the data object provided is examined.</li>
+ * <li>While processing an array, the special variable <tt>{#}</tt>
+ * will provide the current array index + 1 (starts at 1, not 0).</li>
+ * </ul>
+ * </p>
+ * <pre><code>
+<tpl <b>for</b>=".">...</tpl> // loop through array at root node
+<tpl <b>for</b>="foo">...</tpl> // loop through array at foo node
+<tpl <b>for</b>="foo.bar">...</tpl> // loop through array at foo.bar node
+ * </code></pre>
+ * Using the sample data above:
* <pre><code>
var tpl = new Ext.XTemplate(
'<p>Kids: ',
- '<tpl for=".">',
- '<p>{name}</p>',
+ '<tpl <b>for</b>=".">', // process the data.kids node
+ '<p>{#}. {name}</p>', // use current array index to autonumber
'</tpl></p>'
);
tpl.overwrite(panel.body, data.kids); // pass the kids property of the data object
* </code></pre>
- * <p><b>Scope switching</b><br/>The <tt>for</tt> property can be leveraged to access specified members
- * of the provided data object to populate the template:</p>
+ * <p>An example illustrating how the <b><tt>for</tt></b> property can be leveraged
+ * to access specified members of the provided data object to populate the template:</p>
* <pre><code>
var tpl = new Ext.XTemplate(
'<p>Name: {name}</p>',
'<p>Title: {title}</p>',
'<p>Company: {company}</p>',
'<p>Kids: ',
- '<tpl <b>for="kids"</b>>', // interrogate the kids property within the data
+ '<tpl <b>for="kids"</b>>', // interrogate the kids property within the data
'<p>{name}</p>',
'</tpl></p>'
);
+tpl.overwrite(panel.body, data); // pass the root node of the data object
+ * </code></pre>
+ * <p>Flat arrays that contain values (and not objects) can be auto-rendered
+ * using the special <b><tt>{.}</tt></b> variable inside a loop. This variable
+ * will represent the value of the array at the current index:</p>
+ * <pre><code>
+var tpl = new Ext.XTemplate(
+ '<p>{name}\'s favorite beverages:</p>',
+ '<tpl for="drinks">',
+ '<div> - {.}</div>',
+ '</tpl>'
+);
tpl.overwrite(panel.body, data);
* </code></pre>
- * <p><b>Access to parent object from within sub-template scope</b><br/>When processing a sub-template, for example while
- * looping through a child array, you can access the parent object's members via the <tt>parent</tt> object:</p>
+ * <p>When processing a sub-template, for example while looping through a child array,
+ * you can access the parent object's members via the <b><tt>parent</tt></b> object:</p>
* <pre><code>
var tpl = new Ext.XTemplate(
'<p>Name: {name}</p>',
'<p>Kids: ',
'<tpl for="kids">',
- '<tpl if="age &gt; 1">', // <-- Note that the > is encoded
+ '<tpl if="age > 1">',
'<p>{name}</p>',
- '<p>Dad: {parent.name}</p>',
+ '<p>Dad: {<b>parent</b>.name}</p>',
'</tpl>',
'</tpl></p>'
);
tpl.overwrite(panel.body, data);
-</code></pre>
- * <p><b>Array item index and basic math support</b> <br/>While processing an array, the special variable <tt>{#}</tt>
- * will provide the current array index + 1 (starts at 1, not 0). Templates also support the basic math operators
- * + - * and / that can be applied directly on numeric data values:</p>
+ * </code></pre>
+ * </div>
+ * </li>
+ *
+ *
+ * <li><b><u>Conditional processing with basic comparison operators</u></b>
+ * <div class="sub-desc">
+ * <p>The <b><tt>tpl</tt></b> tag and the <b><tt>if</tt></b> operator are used
+ * to provide conditional checks for deciding whether or not to render specific
+ * parts of the template. Notes:<div class="sub-desc"><ul>
+ * <li>Double quotes must be encoded if used within the conditional</li>
+ * <li>There is no <tt>else</tt> operator — if needed, two opposite
+ * <tt>if</tt> statements should be used.</li>
+ * </ul></div>
+ * <pre><code>
+<tpl if="age > 1 && age < 10">Child</tpl>
+<tpl if="age >= 10 && age < 18">Teenager</tpl>
+<tpl <b>if</b>="this.isGirl(name)">...</tpl>
+<tpl <b>if</b>="id==\'download\'">...</tpl>
+<tpl <b>if</b>="needsIcon"><img src="{icon}" class="{iconCls}"/></tpl>
+// no good:
+<tpl if="name == "Jack"">Hello</tpl>
+// encode " if it is part of the condition, e.g.
+<tpl if="name == &quot;Jack&quot;">Hello</tpl>
+ * </code></pre>
+ * Using the sample data above:
* <pre><code>
var tpl = new Ext.XTemplate(
'<p>Name: {name}</p>',
'<p>Kids: ',
'<tpl for="kids">',
- '<tpl if="age &gt; 1">', // <-- Note that the > is encoded
- '<p>{#}: {name}</p>', // <-- Auto-number each item
- '<p>In 5 Years: {age+5}</p>', // <-- Basic math
- '<p>Dad: {parent.name}</p>',
+ '<tpl if="age > 1">',
+ '<p>{name}</p>',
'</tpl>',
'</tpl></p>'
);
tpl.overwrite(panel.body, data);
-</code></pre>
- * <p><b>Auto-rendering of flat arrays</b> <br/>Flat arrays that contain values (and not objects) can be auto-rendered
- * using the special <tt>{.}</tt> variable inside a loop. This variable will represent the value of
- * the array at the current index:</p>
- * <pre><code>
-var tpl = new Ext.XTemplate(
- '<p>{name}\'s favorite beverages:</p>',
- '<tpl for="drinks">',
- '<div> - {.}</div>',
- '</tpl>'
-);
-tpl.overwrite(panel.body, data);
-</code></pre>
- * <p><b>Basic conditional logic</b> <br/>Using the <tt>tpl</tt> tag and the <tt>if</tt>
- * operator you can provide conditional checks for deciding whether or not to render specific parts of the template.
- * Note that there is no <tt>else</tt> operator — if needed, you should use two opposite <tt>if</tt> statements.
- * Properly-encoded attributes are required as seen in the following example:</p>
+ * </code></pre>
+ * </div>
+ * </li>
+ *
+ *
+ * <li><b><u>Basic math support</u></b>
+ * <div class="sub-desc">
+ * <p>The following basic math operators may be applied directly on numeric
+ * data values:</p><pre>
+ * + - * /
+ * </pre>
+ * For example:
* <pre><code>
var tpl = new Ext.XTemplate(
'<p>Name: {name}</p>',
'<p>Kids: ',
'<tpl for="kids">',
'<tpl if="age &gt; 1">', // <-- Note that the > is encoded
- '<p>{name}</p>',
+ '<p>{#}: {name}</p>', // <-- Auto-number each item
+ '<p>In 5 Years: {age+5}</p>', // <-- Basic math
+ '<p>Dad: {parent.name}</p>',
'</tpl>',
'</tpl></p>'
);
tpl.overwrite(panel.body, data);
</code></pre>
- * <p><b>Ability to execute arbitrary inline code</b> <br/>In an XTemplate, anything between {[ ... ]} is considered
- * code to be executed in the scope of the template. There are some special variables available in that code:
+ * </div>
+ * </li>
+ *
+ *
+ * <li><b><u>Execute arbitrary inline code with special built-in template variables</u></b>
+ * <div class="sub-desc">
+ * <p>Anything between <code>{[ ... ]}</code> is considered code to be executed
+ * in the scope of the template. There are some special variables available in that code:
* <ul>
- * <li><b><tt>values</tt></b>: The values in the current scope. If you are using scope changing sub-templates, you
- * can change what <tt>values</tt> is.</li>
+ * <li><b><tt>values</tt></b>: The values in the current scope. If you are using
+ * scope changing sub-templates, you can change what <tt>values</tt> is.</li>
* <li><b><tt>parent</tt></b>: The scope (values) of the ancestor template.</li>
- * <li><b><tt>xindex</tt></b>: If you are in a looping template, the index of the loop you are in (1-based).</li>
- * <li><b><tt>xcount</tt></b>: If you are in a looping template, the total length of the array you are looping.</li>
+ * <li><b><tt>xindex</tt></b>: If you are in a looping template, the index of the
+ * loop you are in (1-based).</li>
+ * <li><b><tt>xcount</tt></b>: If you are in a looping template, the total length
+ * of the array you are looping.</li>
* <li><b><tt>fm</tt></b>: An alias for <tt>Ext.util.Format</tt>.</li>
* </ul>
- * This example demonstrates basic row striping using an inline code block and the <tt>xindex</tt> variable:</p>
+ * This example demonstrates basic row striping using an inline code block and the
+ * <tt>xindex</tt> variable:</p>
* <pre><code>
var tpl = new Ext.XTemplate(
'<p>Name: {name}</p>',
'</tpl></p>'
);
tpl.overwrite(panel.body, data);
-</code></pre>
- * <p><b>Template member functions</b> <br/>One or more member functions can be defined directly on the config
+ * </code></pre>
+ * </div>
+ * </li>
+ *
+ * <li><b><u>Template member functions</u></b>
+ * <div class="sub-desc">
+ * <p>One or more member functions can be specified in a configuration
* object passed into the XTemplate constructor for more complex processing:</p>
* <pre><code>
var tpl = new Ext.XTemplate(
'<tpl if="this.isGirl(name)">',
'<p>Girl: {name} - {age}</p>',
'</tpl>',
+ // use opposite if statement to simulate 'else' processing:
'<tpl if="this.isGirl(name) == false">',
'<p>Boy: {name} - {age}</p>',
'</tpl>',
'<tpl if="this.isBaby(age)">',
'<p>{name} is a baby!</p>',
'</tpl>',
- '</tpl></p>', {
- isGirl: function(name){
- return name == 'Sara Grace';
- },
- isBaby: function(age){
- return age < 1;
- }
-});
+ '</tpl></p>',
+ {
+ // XTemplate configuration:
+ compiled: true,
+ disableFormats: true,
+ // member functions:
+ isGirl: function(name){
+ return name == 'Sara Grace';
+ },
+ isBaby: function(age){
+ return age < 1;
+ }
+ }
+);
tpl.overwrite(panel.body, data);
-</code></pre>
- * @constructor
- * @param {String/Array/Object} parts The HTML fragment or an array of fragments to join(""), or multiple arguments
- * to join("") that can also include a config object
+ * </code></pre>
+ * </div>
+ * </li>
+ *
+ * </ul></div>
+ *
+ * @param {Mixed} config
*/
Ext.XTemplate = function(){
Ext.XTemplate.superclass.constructor.apply(this, arguments);
}
function codeFn(m, code){
- return "'"+ sep +'('+code+')'+sep+"'";
+ // Single quotes get escaped when the template is compiled, however we want to undo this when running code.
+ return "'" + sep + '(' + code.replace(/\\'/g, "'") + ')' + sep + "'";
}
// branched to use + in gecko and [].join() in others
git.ithinksw.org / extjs.git / blobdiff