A template class that supports advanced functionality like:
- *
Autofilling arrays using templates and sub-templates
- *
Conditional processing with basic comparison operators
- *
Basic math function support
- *
Execute arbitrary inline code with special built-in template variables
- *
Custom member functions
- *
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
- *
- *
XTemplate provides the templating mechanism built into:
- *
{@link Ext.DataView}
- *
{@link Ext.ListView}
- *
{@link Ext.form.ComboBox}
- *
{@link Ext.grid.TemplateColumn}
- *
{@link Ext.grid.GroupingView}
- *
{@link Ext.menu.Item}
- *
{@link Ext.layout.MenuLayout}
- *
{@link Ext.ColorPalette}
- *
- *
- *
For example usage {@link #XTemplate see the constructor}.
- *
- * @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.
- *
- *
- *
- *
Sample Data
- *
- *
This is the data object used for reference in each code example:
The tpl tag and the for operator are used
- * to process the provided data object:
- *
- *
If the value specified in for is an array, it will auto-fill,
- * repeating the template block inside the tpl tag for each item in the
- * array.
- *
If for="." is specified, the data object provided is examined.
- *
While processing an array, the special variable {#}
- * will provide the current array index + 1 (starts at 1, not 0).
- *
- *
- *
-<tpl for=".">...</tpl> // loop through array at root node
-<tpl for="foo">...</tpl> // loop through array at foo node
-<tpl for="foo.bar">...</tpl> // loop through array at foo.bar node
- *
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+ The source code
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/**
+ * A template class that supports advanced functionality like:
+ *
+ * - Autofilling arrays using templates and sub-templates
+ * - Conditional processing with basic comparison operators
+ * - Basic math function support
+ * - Execute arbitrary inline code with special built-in template variables
+ * - Custom member functions
+ * - 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
+ *
+ * XTemplate provides the templating mechanism built into:
+ *
+ * - {@link Ext.view.View}
+ *
+ * The {@link Ext.Template} describes the acceptable parameters to pass to the constructor. The following examples
+ * demonstrate all of the supported features.
+ *
+ * # Sample Data
+ *
+ * This is the data object used for reference in each code example:
+ *
+ * var data = {
+ * name: 'Tommy Maintz',
+ * title: 'Lead Developer',
+ * company: 'Sencha Inc.',
+ * email: 'tommy@sencha.com',
+ * address: '5 Cups Drive',
+ * city: 'Palo Alto',
+ * state: 'CA',
+ * zip: '44102',
+ * drinks: ['Coffee', 'Soda', 'Water'],
+ * kids: [
+ * {
+ * name: 'Joshua',
+ * age:3
+ * },
+ * {
+ * name: 'Matthew',
+ * age:2
+ * },
+ * {
+ * name: 'Solomon',
+ * age:0
+ * }
+ * ]
+ * };
+ *
+ * # Auto filling of arrays
+ *
+ * The **tpl** tag and the **for** operator are used to process the provided data object:
+ *
+ * - If the value specified in for is an array, it will auto-fill, repeating the template block inside the tpl
+ * tag for each item in the array.
+ * - If for="." is specified, the data object provided is examined.
+ * - While processing an array, the special variable {#} will provide the current array index + 1 (starts at 1, not 0).
+ *
+ * Examples:
+ *
+ * <tpl for=".">...</tpl> // loop through array at root node
+ * <tpl for="foo">...</tpl> // loop through array at foo node
+ * <tpl for="foo.bar">...</tpl> // loop through array at foo.bar node
+ *
* Using the sample data above:
- *
-var tpl = new Ext.XTemplate(
- '<p>Kids: ',
- '<tpl for=".">', // 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
- *
- *
An example illustrating how the for property can be leveraged
- * to access specified members of the provided data object to populate the template:
- *
-var tpl = new Ext.XTemplate(
- '<p>Name: {name}</p>',
- '<p>Title: {title}</p>',
- '<p>Company: {company}</p>',
- '<p>Kids: ',
- '<tpl for="kids">', // 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
- *
- *
Flat arrays that contain values (and not objects) can be auto-rendered
- * using the special {.} variable inside a loop. This variable
- * will represent the value of the array at the current index:
Conditional processing with basic comparison operators
- *
- *
The tpl tag and the if operator are used
- * to provide conditional checks for deciding whether or not to render specific
- * parts of the template. Notes:
- *
Double quotes must be encoded if used within the conditional
- *
There is no else operator — if needed, two opposite
- * if statements should be used.
- *
- *
-<tpl if="age > 1 && age < 10">Child</tpl>
-<tpl if="age >= 10 && age < 18">Teenager</tpl>
-<tpl if="this.isGirl(name)">...</tpl>
-<tpl if="id==\'download\'">...</tpl>
-<tpl if="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 == "Jack"">Hello</tpl>
- *
+ *
+ * var tpl = new Ext.XTemplate(
+ * '<p>Kids: ',
+ * '<tpl for=".">', // 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
+ *
+ * An example illustrating how the **for** property can be leveraged to access specified members of the provided data
+ * object to populate the template:
+ *
+ * var tpl = new Ext.XTemplate(
+ * '<p>Name: {name}</p>',
+ * '<p>Title: {title}</p>',
+ * '<p>Company: {company}</p>',
+ * '<p>Kids: ',
+ * '<tpl for="kids">', // 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
+ *
+ * Flat arrays that contain values (and not objects) can be auto-rendered using the special **`{.}`** variable inside a
+ * loop. This variable will represent the value of the array at the current index:
+ *
+ * var tpl = new Ext.XTemplate(
+ * '<p>{name}\'s favorite beverages:</p>',
+ * '<tpl for="drinks">',
+ * '<div> - {.}</div>',
+ * '</tpl>'
+ * );
+ * tpl.overwrite(panel.body, data);
+ *
+ * When processing a sub-template, for example while looping through a child array, you can access the parent object's
+ * members via the **parent** object:
+ *
+ * var tpl = new Ext.XTemplate(
+ * '<p>Name: {name}</p>',
+ * '<p>Kids: ',
+ * '<tpl for="kids">',
+ * '<tpl if="age > 1">',
+ * '<p>{name}</p>',
+ * '<p>Dad: {parent.name}</p>',
+ * '</tpl>',
+ * '</tpl></p>'
+ * );
+ * tpl.overwrite(panel.body, data);
+ *
+ * # Conditional processing with basic comparison operators
+ *
+ * The **tpl** tag and the **if** operator are used to provide conditional checks for deciding whether or not to render
+ * specific parts of the template. Notes:
+ *
+ * - Double quotes must be encoded if used within the conditional
+ * - There is no else operator -- if needed, two opposite if statements should be used.
+ *
+ * Examples:
+ *
+ * <tpl if="age > 1 && age < 10">Child</tpl>
+ * <tpl if="age >= 10 && age < 18">Teenager</tpl>
+ * <tpl if="this.isGirl(name)">...</tpl>
+ * <tpl if="id==\'download\'">...</tpl>
+ * <tpl if="needsIcon"><img src="{icon}" class="{iconCls}"/></tpl>
+ * // no good:
+ * <tpl if="name == "Tommy"">Hello</tpl>
+ * // encode " if it is part of the condition, e.g.
+ * <tpl if="name == "Tommy"">Hello</tpl>
+ *
* Using the sample data above:
- *
The following basic math operators may be applied directly on numeric
- * data values:
- * + - * /
- *
+ *
+ * var tpl = new Ext.XTemplate(
+ * '<p>Name: {name}</p>',
+ * '<p>Kids: ',
+ * '<tpl for="kids">',
+ * '<tpl if="age > 1">',
+ * '<p>{name}</p>',
+ * '</tpl>',
+ * '</tpl></p>'
+ * );
+ * tpl.overwrite(panel.body, data);
+ *
+ * # Basic math support
+ *
+ * The following basic math operators may be applied directly on numeric data values:
+ *
+ * + - * /
+ *
* For example:
- *
-var tpl = new Ext.XTemplate(
- '<p>Name: {name}</p>',
- '<p>Kids: ',
- '<tpl for="kids">',
- '<tpl if="age > 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>',
- '</tpl></p>'
-);
-tpl.overwrite(panel.body, data);
-
- *
- *
- *
- *
- *
Execute arbitrary inline code with special built-in template variables
- *
- *
Anything between {[ ... ]} is considered code to be executed
- * in the scope of the template. There are some special variables available in that code:
- *
- *
values: The values in the current scope. If you are using
- * scope changing sub-templates, you can change what values is.
- *
parent: The scope (values) of the ancestor template.
- *
xindex: If you are in a looping template, the index of the
- * loop you are in (1-based).
- *
xcount: If you are in a looping template, the total length
- * of the array you are looping.
- *
fm: An alias for Ext.util.Format.
- *
- * This example demonstrates basic row striping using an inline code block and the
- * xindex variable:
- *