XHR2 Uploads and Downloads
Many classes have shortcut names used when creating (instantiating) a class with a
configuration object. The shortcut name is referred to as an alias (or xtype if the
class extends Ext.Component). The alias/xtype is listed next to the class name of
applicable classes for quick reference.
Framework classes or their members may be specified as private or protected. Else,
the class / member is public. Public, protected, and private are access
descriptors used to convey how and when the class or class member should be used.
Public classes and class members are available for use by any other class or application code and may be relied upon as a stable and persistent within major product versions. Public classes and members may safely be extended via a subclass.
Protected class members are stable public members intended to be used by the
owning class or its subclasses. Protected members may safely be extended via a subclass.
Private classes and class members are used internally by the framework and are not intended to be used by application developers. Private classes and members may change or be omitted from the framework at any time without notice and should not be relied upon in application logic.
static label next to the
method name. *See Static below.Below is an example class member that we can disect to show the syntax of a class member (the lookupComponent method as viewed from the Ext.button.Button class in this case).
Let's look at each part of the member row:
lookupComponent in this example)( item ) in this example)Ext.Component in this case). This may be omitted for methods that do not
return anything other than undefined or may display as multiple possible values
separated by a forward slash / signifying that what is returned may depend on the
results of the method call (i.e. a method may return a Component if a get method calls is
successful or false if unsuccessful which would be displayed as
Ext.Component/Boolean).PROTECTED in
this example - see the Flags section below)Ext.container.Container in this example). The source
class will be displayed as a blue link if the member originates from the current class
and gray if it is inherited from an ancestor or mixed-in class.view source in the example)item : Object in the example).undefined a "Returns" section
will note the type of class or object returned and a description (Ext.Component in the
example)Available since 3.4.0 - not pictured in
the example) just after the member descriptionDefaults to: false)The API documentation uses a number of flags to further commnicate the class member's function and intent. The label may be represented by a text label, an abbreviation, or an icon.
classInstance.method1().method2().etc();false is returned from
an event handler- Indicates a framework class
- A singleton framework class. *See the singleton flag for more information
- A component-type framework class (any class within the Ext JS framework that extends Ext.Component)
- Indicates that the class, member, or guide is new in the currently viewed version
- Indicates a class member of type config
- Indicates a class member of type property
- Indicates a class member of type
method
- Indicates a class member of type event
- Indicates a class member of type
theme variable
- Indicates a class member of type
theme mixin
- Indicates that the class, member, or guide is new in the currently viewed version
Just below the class name on an API doc page is a row of buttons corresponding to the types of members owned by the current class. Each button shows a count of members by type (this count is updated as filters are applied). Clicking the button will navigate you to that member section. Hovering over the member-type button will reveal a popup menu of all members of that type for quick navigation.
Getting and setter methods that correlate to a class config option will show up in the methods section as well as in the configs section of both the API doc and the member-type menus just beneath the config they work with. The getter and setter method documentation will be found in the config row for easy reference.
Your page history is kept in localstorage and displayed (using the available real estate) just below the top title bar. By default, the only search results shown are the pages matching the product / version you're currently viewing. You can expand what is displayed by clicking on the button on the right-hand side of the history bar and choosing the "All" radio option. This will show all recent pages in the history bar for all products / versions.
Within the history config menu you will also see a listing of your recent page visits. The results are filtered by the "Current Product / Version" and "All" radio options. Clicking on the button will clear the history bar as well as the history kept in local storage.
If "All" is selected in the history config menu the checkbox option for "Show product details in the history bar" will be enabled. When checked, the product/version for each historic page will show alongside the page name in the history bar. Hovering the cursor over the page names in the history bar will also show the product/version as a tooltip.
Both API docs and guides can be searched for using the search field at the top of the page.
On API doc pages there is also a filter input field that filters the member rows using the filter string. In addition to filtering by string you can filter the class members by access level and inheritance. This is done using the checkboxes at the top of the page.
The checkbox at the bottom of the API class navigation tree filters the class list to include or exclude private classes.
Clicking on an empty search field will show your last 10 searches for quick navigation.
Each API doc page (with the exception of Javascript primitives pages) has a menu view of metadata relating to that class. This metadata view will have one or more of the following:
Ext.button.Button class has an alternate class name of Ext.Button). Alternate class
names are commonly maintained for backward compatibility.Runnable examples (Fiddles) are expanded on a page by default. You can collapse and expand example code blocks individually using the arrow on the top-left of the code block. You can also toggle the collapse state of all examples using the toggle button on the top-right of the page. The toggle-all state will be remembered between page loads.
Class members are collapsed on a page by default. You can expand and collapse members using the arrow icon on the left of the member row or globally using the expand / collapse all toggle button top-right.
Viewing the docs on narrower screens or browsers will result in a view optimized for a smaller form factor. The primary differences between the desktop and "mobile" view are:
The class source can be viewed by clicking on the class name at the top of an API doc page. The source for class members can be viewed by clicking on the "view source" link on the right-hand side of the member row.
Sencha Touch provides the new xhr2 configuration parameter and the
Ext.ProgressIndicator class for use with AJAX and AJAX2 development.
For more information on XHR2, see
XMLHttpRequest Level 2 W3C Working Draft.
XHR2 in Sencha Touch provides a new progress indicator so that apps can keep users informed of data transfer progress.
For information on which browsers support XHR2, see Can I Use XHR2?. For older Android devices, check activity at the Android Usage Dashboard to see the trend - as of this writing, Android 2.2 is almost obsolete and Android 2.3 is trending downward (it was much higher a year ago).
You can test for the presence of XHR2 in a browser or platform using Ext.feature.has.XHR2:
if (Ext.feature.has.XHR2) {
// Provide upload and download indicators with XHR2
}
You can also use XHRUploadProgress with Ext.feature to determine
if a browser supports progressive uploads:
if (Ext.feature.has.XHRUploadProgress) {
// Check Browser for progressive uploads
}
New Features
XHR2 features:
| Value | Description |
|---|---|
Ext.field.File |
Added the FileField, which provides an improved label and a layout to the file input. |
Ext.field.FileInput |
Provides file input. |
Ext.ProgressIndicator |
A Component that is able to visualize progress (upload, download, etc.) This Component is integrated into the Sencha Touch data package and automatically works with all AJAX requests. |
xtype:"filefield" |
Creates an instance of the Ext.field.File class. |
xtype:"fileinput" |
Creates an instance of the Ext.field.FileInput class. |
FormData |
An object in newer browsers used to package data and send it with XHR2. Example 9 provides an additional usage. |
responseType: "blob", |
Describes the type of data that is returned by a server, it can be text,
document, arraybuffer, or blob.
See Blob
for more information. |
xhr2: true, |
Enables or disables XMLHttpRequest Level 2 functionality. |
The following example requests a DOM element from a server. This example
shows how to perform a cross-domain access to a server. The example acquires
a PHP object and returns it as JSON. The code that follows uses a vbox and
an output panel. Below the button in the preview is text output. When you
click the button, the example calls the Ext.Ajax.request function to
pass in the DOM object. The new variable in the example is xhr2: true which
enables the XMLHttpRequest functionality in Touch.
When you're not sending information across the network such submitting
a form or sending an image, the xhr2 variable can be true or false - the
results are the same.
Source code: ajax-simple.html
Ext.setup({
requires: [
'Ext.Panel',
'Ext.Button',
'Ext.form.Panel'
],
onReady: function() {
var request = {
url: 'http://sencha-xhr2-demos.herokuapp.com/simple-json.php',
method: 'POST',
xhr2: true,
success: function(response) {
var out = Ext.getCmp("output");
response = Ext.JSON.decode(response.responseText, true);
if(response) out.setHtml(response.message);
},
failure: function(response) {
var out = Ext.getCmp("output");
out.setHtml(response.message);
}
};
Ext.Viewport.add({
xtype:"panel",
layout:"vbox",
fullscreen:true,
items: [
{
xtype:"button",
text: "Ajax",
ui: 'confirm',
handler: function(){
Ext.Ajax.request(request);
}
},
{
xtype: "panel",
id: "output",
scrollable: true,
flex:1
}
]
});
}
});
The ajax-params example provides AJAX with two parameters that it posts back to the application.
This application consists of a button and an output panel. In this example, the request object is
modified to include these parameters:
params: {
firstName: "John",
lastName: "Doe"
},
Source Code: ajax-params.html
Ext.setup({
requires: [
'Ext.Panel',
'Ext.Button',
'Ext.form.Panel'
],
// Request will be sent as standard post data
onReady: function() {
var request = {
url: 'http://sencha-xhr2-demos.herokuapp.com/post-json.php',
method: 'POST',
xhr2: true,
params: {
firstName: "John",
lastName: "Doe"
},
success: function(response) {
var out = Ext.getCmp("output");
response = Ext.JSON.decode(response.responseText, true);
out.setHtml(response.message);
},
failure: function(response) {
var out = Ext.getCmp("output");
out.setHtml(response.message);
}
};
Ext.Viewport.add({
xtype:"panel",
layout:"vbox",
fullscreen:true,
items: [
{
xtype:"button",
text: "Ajax",
ui: 'confirm',
handler: function(){
Ext.Ajax.request(request);
}
},
{
xtype: "panel",
id: "output",
scrollable: true,
flex:1
}
]
});
}
});
In the ajax-formdata example, form data is sent to the server and received in the application.
XHR2 supported browsers provide access to the FormData object, which appends data
into the payload to be sent to the server. In this example, the response is
in JSON.
This code shows the use of FormData and appending information to create a payload:
var formData = new FormData();
formData.append("firstName", "John");
formData.append("lastName", "Doe");
This data comes to the application as multi-part form data, not as parameters, which are passed as URL-encoded data.
Source Code: ajax-formdata.html
Ext.setup({
requires: [
'Ext.Panel',
'Ext.Button',
'Ext.form.Panel'
],
onReady: function() {
var formData = new FormData();
formData.append("firstName", "John");
formData.append("lastName", "Doe");
// Request is sent as part of the payload instead of as standard post data
var request = {
url: 'http://sencha-xhr2-demos.herokuapp.com/post-json.php',
method: 'POST',
xhr2: true,
data: formData,
success: function(response) {
var out = Ext.getCmp("output");
response = Ext.JSON.decode(response.responseText, true);
out.setHtml(response.message);
},
failure: function(response) {
var out = Ext.getCmp("output");
out.setHtml(response.message);
}
};
Ext.Viewport.add({
xtype:"panel",
layout:"vbox",
fullscreen:true,
items: [
{
xtype:"button",
text: "Ajax",
ui: 'confirm',
handler: function(){
Ext.Ajax.request(request);
}
},
{
xtype: "panel",
id: "output",
scrollable: true,
flex:1
}
]
});
}
});
The ajax-upload example shows the use of the Ext.field.FileInput class
and a progress indicator for sending files from your
application over the web to the server. The xtype:"fileinput" creates an instance
of the Ext.field.FileInput class.
You can use the file input in the same way as a field:
Ext.Viewport.add({
xtype:"panel",
layout:"vbox",
fullscreen:true,
items: [
{
xtype:"fileinput",
accept:"image/jpeg"
},
...
In this example, the xtype:"fileinput" specifies the type of file users choose on their device.
The progress indicator displays a graphic with either text and the percentage of how much time remains to complete an activity, or the graphic lists "Loading". This indicator lets you monitor the progress of an upload or download transfer over time. The indicator is integrated directly in the data package.
var progressIndicator = Ext.create("Ext.ProgressIndicator", {
loadingText: "Uploading: {percent}%"
});
The accept parameter can be audio, video, image, etc. While Sencha Touch supports all
MIME media types, browsers
may or may not support all media types. You can use a short form with audio, video, and image
where you specify the keyword and Touch adds /* - for example:
accept:"image"
Is the same as specifying:
accept:"image/*"
Note: If you specify multiple keywords, use the pipe "|" delimiter and spell out the full form of the keyword, not the short form. For example:
accept:"image/*|video/*|audio/*"
Any of the IANA MIME media types can also be added to the accept string using the pipe delimiter.
For more information on the accept parameter, see W3Schools.
To accept data from a form, use the xtype:"filefield" parameter.
To change the example to support PNG graphics, change the parameter to accept: "image/png" and
change the Ext.Msg.alert message in the example.
You can also specify a capture device from where to accept input, which can be camera, camcorder,
microphone, or null. If you specify null, the device determines what your intent is depending
on the device's current context. If you specify camera, an Android device opens the device's
camera to satisfy the request for input. In Android, if you specify null, Android opens a list of
possible options for the user to choose where to get the image, such as from its camera, the photo
gallery, Dropbox, or other options depending on what is configured in the device. If the capture
parameter is omitted, the device default is used to supply the image. In Android, the default is to
prompt to choose an app from where to get the file.
Note: Capture depends on the platform and the browser for implementation.
In iOS, setting capture:"camera" prompts you to
take a photo or choose an image from the Gallery.
For example:
{
xtype:"fileinput",
accept:"image/png",
capture:"camera"
}
You can use the multiple:"true" parameter to indicate the need for multiple media files; however,
different platforms have different behaviors. iOS only supports multiple images.
In iOS, if you set multiple:"true", only the Photo Gallery opens and the camera is not permitted to
supply the image.
In Android, if you specify capture:"camera", the multiple parameter is ignored.
Source Code: ajax-upload.html
Ext.setup({
requires: [
'Ext.Panel',
'Ext.MessageBox',
'Ext.Button',
'Ext.ProgressIndicator',
'Ext.form.Panel',
'Ext.field.FileInput'
],
onReady: function() {
var progressIndicator = Ext.create("Ext.ProgressIndicator", {
loadingText: "Uploading: {percent}%"
});
var request = {
url: 'http://sencha-xhr2-demos.herokuapp.com/simple-json.php',
method: 'POST',
xhr2: true,
progress:progressIndicator,
success: function(response) {
var out = Ext.getCmp("output");
response = Ext.JSON.decode(response.responseText, true);
out.setHtml(response.message);
},
failure: function(response) {
var out = Ext.getCmp("output");
out.setHtml(response.message);
}
};
Ext.Viewport.add(progressIndicator);
Ext.Viewport.add({
xtype:"panel",
layout:"vbox",
fullscreen:true,
items: [
{
xtype:"fileinput",
accept:"image/jpeg"
},
{
xtype:"button",
text: "Upload",
ui: 'confirm',
handler: function(){
var input = Ext.Viewport.down("fileinput").input;
var files = input.dom.files;
if (files.length) {
request.binaryData = files[0];
Ext.Ajax.request(request);
}else {
Ext.Msg.alert("Please Select a JPG");
}
}
},
{
xtype: "panel",
id: "output",
scrollable: true,
flex:1
}
]
});
}
});
You can add other input types such as a color, date, email, telephone keypad, and more. Depending
on which browser or platform you're using, when you specify an input type, the browser displays a
user interface control for entering the values for the input. For example, if you specify
type:"tel", the device displays a telephone keypad that accepts 0-9, #, and *.
See Can I use Date/time input types? for information on which browsers work with the date input type.
To specify a date input, create a textfield and override the type in the component:
{
xtype:"textfield",
label:"hello",
component: {
type:"date"
}
}
This example receives an image with AJAX and shows how to download an image with a progress bar.
Source Code: ajax-image.html
Ext.setup({
requires: [
'Ext.Panel',
'Ext.Button',
'Ext.form.Panel'
],
onReady: function() {
var progressIndicator = Ext.create("Ext.ProgressIndicator");
var request = {
url: 'http://sencha-xhr2-demos.herokuapp.com/simple-image.php',
responseType:"blob",
method: 'POST',
progress: progressIndicator,
xhr2: true,
success: function(response) {
var createObjectURL = window.URL && window.URL.createObjectURL ?
window.URL.createObjectURL : webkitURL && webkitURL.createObjectURL ?
webkitURL.createObjectURL : null;
if (createObjectURL) {
var image = Ext.Viewport.down("image");
var url = createObjectURL(response.responseBytes);
image.setSrc(url);
}
},
failure: function(response) {
var out = Ext.getCmp("output");
out.setHtml(response.message);
}
};
Ext.Viewport.add({
xtype:"panel",
layout:{
type: "vbox",
pack: "center",
align: "center"
},
fullscreen:true,
items: [
{
xtype:"image",
height: 400,
width: 250,
style: {
"background-position": "0 0"
},
src: 'http://placehold.it/250x400'
},
{
xtype:"button",
text: "Ajax",
ui: 'confirm',
handler: function(){
Ext.Ajax.request(request);
}
},
{
xtype: "panel",
id: "output",
scrollable: true,
flex:1
}
]
});
}
});
This example uploads an image to the server using XHR2. The server processes this image and sends it back
as binary data. This data is received as an array buffer inside response.responseBytes.
Source Code: ajax-upload-arraybuffer.html
Ext.setup({
requires: [
'Ext.Panel',
'Ext.Img',
'Ext.MessageBox',
'Ext.Button',
'Ext.ProgressIndicator',
'Ext.form.Panel',
'Ext.field.FileInput'
],
onReady: function() {
var progressIndicator = Ext.create("Ext.ProgressIndicator");
var request = {
url: 'http://sencha-xhr2-demos.herokuapp.com/upload-arraybuffer.php',
method: 'POST',
responseType: "arraybuffer",
xhr2: true,
progress:progressIndicator,
success: function(response) {
var createObjectURL = window.URL && window.URL.createObjectURL ?
window.URL.createObjectURL : webkitURL && webkitURL.createObjectURL ?
webkitURL.createObjectURL : null;
if (createObjectURL) {
var image = Ext.Viewport.down("image");
var blob = new Blob([response.responseBytes],
{type: response.getResponseHeader("Content-Type")});
var url = createObjectURL(blob);
image.setSrc(url);
}
},
failure: function(response) {
var out = Ext.getCmp("output");
out.setHtml(response.message);
}
};
Ext.Viewport.add(progressIndicator);
Ext.Viewport.add({
xtype:"panel",
layout:"vbox",
fullscreen:true,
items: [
{
xtype:"image",
height: 300,
width: 300,
style: {
"background-position": "0 0"
},
src: 'http://placehold.it/300x300'
},
{
xtype:"fileinput",
accept:"image/jpeg"
},
{
xtype:"button",
text: "Upload",
ui: 'confirm',
handler: function(){
var input = Ext.Viewport.down("fileinput").input;
var image = Ext.Viewport.down("image");
var files = input.dom.files;
if (files.length) {
request.binaryData = files[0];
//size is in bytes
if(request.binaryData.size <= 2097152) {
Ext.Ajax.request(request);
} else {
Ext.Msg.alert("JPG Must be less then 2MB");
}
}else {
Ext.Msg.alert("Please Select a JPG");
}
}
},
{
xtype: "panel",
id: "output",
scrollable: true,
flex:1
}
]
});
}
});
This example uploads an image to the server using XHR2. The server then processes this image
and sends it back as binary data. This data is received as a Blob inside response.responseBytes.
Source Code: ajax-upload-blob.html
Ext.setup({
requires: [
'Ext.Panel',
'Ext.Img',
'Ext.MessageBox',
'Ext.Button',
'Ext.ProgressIndicator',
'Ext.form.Panel',
'Ext.field.FileInput'
],
onReady: function() {
var progressIndicator = Ext.create("Ext.ProgressIndicator");
var request = {
url: 'http://sencha-xhr2-demos.herokuapp.com/upload-blob.php',
method: 'POST',
responseType: "blob",
xhr2: true,
progress:progressIndicator,
success: function(response) {
var createObjectURL = window.URL && window.URL.createObjectURL ?
window.URL.createObjectURL : webkitURL && webkitURL.createObjectURL ?
webkitURL.createObjectURL : null;
if (createObjectURL) {
var image = Ext.Viewport.down("image");
var url = createObjectURL(response.responseBytes);
image.setSrc(url);
}
},
failure: function(response) {
var out = Ext.getCmp("output");
out.setHtml(response.message);
}
};
Ext.Viewport.add(progressIndicator);
Ext.Viewport.add({
xtype:"panel",
layout:"vbox",
fullscreen:true,
items: [
{
xtype:"image",
height: 300,
width: 300,
style: {
"background-position": "0 0"
},
src: 'http://placehold.it/300x300'
},
{
xtype:"fileinput",
accept:"image/jpeg"
},
{
xtype:"button",
text: "Upload",
ui: 'confirm',
handler: function(){
var input = Ext.Viewport.down("fileinput").input;
var image = Ext.Viewport.down("image");
var files = input.dom.files;
if (files.length) {
request.binaryData = files[0];
//size is in bytes
if(request.binaryData.size <= 2097152) {
request.params = {
width: image.getWidth(),
height: image.getHeight()
};
Ext.Ajax.request(request);
} else {
Ext.Msg.alert("JPG Must be less then 2MB");
}
}else {
Ext.Msg.alert("Please Select a JPG");
}
}
},
{
xtype: "panel",
id: "output",
scrollable: true,
flex:1
}
]
});
}
});
In this example, the server responds with HTML markup. Response.responseXML is set to a
fully traversable Document object.
Source Code: ajax-document.html
Ext.setup({
requires: [
'Ext.Panel',
'Ext.MessageBox',
'Ext.Button',
'Ext.form.Panel'
],
onReady: function() {
var request = {
url: 'http://sencha-xhr2-demos.herokuapp.com/simple-document.php',
method: 'POST',
responseType:"document",
xhr2: true,
success: function(response) {
var dom = response.responseXML,
out = Ext.getCmp("output"),
el = dom.querySelector(".response");
out.innerElement.appendChild(el);
},
failure: function(response) {
console.log(response);
}
};
Ext.Viewport.add({
xtype:"panel",
layout:"vbox",
fullscreen:true,
items: [
{
xtype:"button",
text: "Request",
ui: 'confirm',
handler: function(){
Ext.Ajax.request(request);
}
},
{
xtype: "panel",
id: "output",
scrollable: true,
flex:1
}
]
});
}
});
In this example, form data is sent across using the new FormData object.
The firstName and lastName are appended into this object and sent across as FormData.
Source Code: form-simple.html
Ext.setup({
requires: [
'Ext.form.Panel',
'Ext.Button',
'Ext.form.FieldSet',
'Ext.field.Text',
'Ext.Toolbar'
],
onReady: function() {
var request = {
url: 'http://sencha-xhr2-demos.herokuapp.com/post-json.php',
method: 'POST',
// Commenting out xhr2 sends this form with normal parameters.
// When xhr2 is true, the form panel creates the HTML5
// FormData object to send all fields.
xhr2: true,
success: function(form, response) {
var out = Ext.getCmp("output");
if(response) out.setHtml(response.message);
},
failure: function(form, response) {
var out = Ext.getCmp("output");
out.setHtml(response.message);
}
};
Ext.Viewport.add({
xtype:"formpanel",
layout:"vbox",
fullscreen:true,
items: [
{
xtype: 'fieldset',
title: 'My Uploader',
items: [
{
xtype: "textfield",
name: "firstName",
label: "First Name:"
},
{
xtype: "textfield",
name: "lastName",
label: "Last Name:"
}
]
},
{
xtype: 'toolbar',
layout: {
pack: 'center'
},
ui: 'plain',
items: [
{
xtype: 'button',
text: 'Submit',
ui: 'confirm',
handler: function() {
var form = Ext.Viewport.down("formpanel");
form.submit(request);
}
}
]
},
{
xtype: "panel",
id: "output",
scrollable: true,
flex:1
}
]
});
}
});
This example uses the new FormDataobject to not only send firstName and lastName,
but also multiple files chosen by the user.
Source Code: form-upload.html
Ext.setup({
requires: [
'Ext.form.Panel',
'Ext.Button',
'Ext.form.FieldSet',
'Ext.field.Text',
'Ext.field.File',
'Ext.Toolbar',
'Ext.ProgressIndicator'
],
onReady: function() {
// If we do not add the progress indicator to anything, it is automatically
// added to the Viewport when progress starts.
var progressIndicator = Ext.create("Ext.ProgressIndicator");
var request = {
url: 'http://sencha-xhr2-demos.herokuapp.com/form-upload.php',
method: 'POST',
// Commenting out xhr2 causes Touch to attempt to send this form through
// an iframe for the upload. When xhr2 is true, a new HTML5 FormData object
// creates to send all fields.
xhr2: true,
progress: progressIndicator,
//Progress can also be a simple callback
/*progress: function(e) {
console.log((e.loaded / e.total) * 100);
},*/
success: function(form, response) {
var out = Ext.getCmp("output");
if(response) {
out.setHtml(response.message);
for(var file in response.files) {
file = response.files[file];
out.setHtml(out.getHtml() + "<br/>-" + file.name +": " + file.size);
}
}
},
failure: function(form, response) {
var out = Ext.getCmp("output");
out.setHtml(response.message);
}
};
Ext.Viewport.add({
xtype:"formpanel",
layout:"vbox",
fullscreen:true,
items: [
{
xtype: 'fieldset',
title: 'My Uploader',
items: [
{
xtype: "textfield",
name: "firstName",
label: "First Name:"
},
{
xtype: "textfield",
name: "lastName",
label: "Last Name:"
},
{
xtype:"filefield",
label: "Select image(s):",
name: "photos",
accept:"image/jpeg",
multiple: true
}
]
},
{
xtype: 'toolbar',
layout: {
pack: 'center'
},
ui: 'plain',
items: [
{
xtype: 'button',
text: 'Submit',
ui: 'confirm',
handler: function() {
var form = Ext.Viewport.down("formpanel");
var input = Ext.Viewport.down("filefield").getComponent().input;
var files = input.dom.files;
for(var i = 0 ; i<files.length ; i++){
var file = files[i];
if(file.size > 2097152) {
Ext.Msg.alert("JPG Must be less then 2MB");
return;
}
}
form.submit(request);
}
}
]
},
{
xtype: "panel",
id: "output",
padding: "10px",
scrollable: true,
flex:1
}
]
});
}
});
Sencha Touch 2.4 | Terms of Use