This session will cover various approaches for using JavaScript in Visualforce pages, allowing developers to bring the two worlds together. We will also cover the concept of Inversion of Control to dynamically generate Visualforce components using object configurations that allow admins to easily assemble the pages from the library of existing components without writing single line of code. What you will learn: Create custom user interfaces on Force.com using Visualforce and JavaScript Build lean and fast pages for web and mobile devices with high user adoption Improve performance and simplify your architecture with JavaScript Remoting and Remote Objects How to use Apex to dynamically build Visualforce components

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Advanced Visualforce Development
July 30, 2015

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Safe Harbor
Safe harbor statement under the Private Securities Litigation Reform Act of 1995:
This presentation may contain forward-looking statements that involve risks, uncertainties, and assumptions. If any such uncertainties materialize or if
any of the assumptions proves incorrect, the results of salesforce.com, inc. could differ materially from the results expressed or implied by the forward-
looking statements we make. All statements other than statements of historical fact could be deemed forward-looking, including any projections of
product or service availability, subscriber growth, earnings, revenues, or other financial items and any statements regarding strategies or plans of
management for future operations, statements of belief, any statements concerning new, planned, or upgraded services or technology developments
and customer contracts or use of our services.
The risks and uncertainties referred to above include – but are not limited to – risks associated with developing and delivering new functionality for our
service, new products and services, our new business model, our past operating losses, possible fluctuations in our operating results and rate of
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any possible mergers and acquisitions, the immature market in which we operate, our relatively limited operating history, our ability to expand, retain,
and motivate our employees and manage our growth, new releases of our service and successful customer deployment, our limited history reselling
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Speakers
Kartik Viswanadha
Director, OpFocus
Salesforce MVP
@logontokartik

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▪ Don’t wait until the end to ask your question!
– Technical support will answer questions starting now.
▪ Respect Q&A etiquette
– Please don’t repeat questions. The support team is
working their way down the queue.
▪ Stick around for live Q&A at the end
– Speakers will tackle more questions at the end, time-
allowing.
▪ Head to Developer Forums
– More questions? Visit developer.salesforce.com/forums
Have Questions?

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Pre-requisites
• Basic understanding of Apex code
• Basic understanding of Visualforce
• Basic understanding of web-based technologies like
HTML, JavaScript

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Agenda
• Visualforce Life Cycle
• JavaScript Remoting
• Remote Objects
• Dynamic Visualforce Components

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Visualforce Life Cycle
• Get Requests
• Postback Request

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Visualforce Life Cycle – Cont.
Evaluate
Constructors
Evaluate
Constructors for
Components
Evaluate
Expressions and
actions on page
Create View
State
Send HTML to
Browser
GET
Decode View
State
Evaluate
Expressions
and all method
calls
Evaluate
actions that
triggered
Postback
Update data &
Redirect or
Update View
State
Send HTML to
Browser
POST
BACK

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JavaScript allows the Visualforce to
become the interface you need
- Joshua Birk
• JavaScript Remoting
• Visualforce Remote Objects
• ActionFunction, ActionSupport
• JSForce, ForceTK, forceJS, ngForce

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JavaScript Remoting

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JavaScript Remoting
• A Stateless way to call Apex from JavaScript
JavaScript
Function
Apex
Controller
JavaScript
Callback
@RemoteAction
static

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Features of JavaScript Remoting
• Asynchronous
• No State Required
• Fast Performance
State

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Demo

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JavaScript Remoting Use cases
• Slick & Fast User Interfaces
• Third party JavaScript Libraries or Frameworks
• Mobile Applications
• Single Page Applications
• JavaScript Guru

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Visualforce Remote Objects

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Remote Objects
Account Contact Lead
Controller
Account Contact Lead
Proxy Objects
Access Definition
<apex:remoteObjects>
<apex:remoteObjectModel>
<apex:remoteObjectField>
Data Access
Retrieve()
Create()
Update()
Delete()

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Remote Objects - Overrides
• Override the standard CRUD operations
• Add logic in your Apex Controller

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Demo

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JavaScript Remoting, Remote Objects, Action
Function

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Limits
• JavaScript Remoting
• Maximum timeout of 120 sec, default 30 sec
• Response size of max 15mb
• Visualforce Remote Objects
• Max 100 Rows in a Single Request
• No Support for Blob fields
• Rendered attribute
• All Salesforce & Visualforce Service Limits
• Not counted against API

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Dynamic Visualforce Components

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Dynamic Visualforce Components
<apex:dynamicComponent componentValue="{!components}"/>
Dynamically builds the
Visualforce Components
Value returned from the Apex
Controller
Component.Apex.<any component>
detail
outputPanel
..

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Dynamic Visualforce Components - Architecture

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Demo

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Wrap up
▪ Visualforce page LifeCycle
▪ JavaScript Remoting in Visualforce
▪ JavaScript Remoting Use Cases
▪ Visualforce Remote Objects
▪ Comparison / Pros & Cons of each feature
▪ Visualforce Dynamic Components

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References
• https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/
• https://developer.salesforce.com/trailhead/module/visualforce_fundamentals
• https://developer.salesforce.com/trailhead/module/visualforce_mobile_salesfor
ce1
• https://github.com/logontokartik/VFDynamicComponents
• https://gist.github.com/logontokartik/b463e6988566f62c277d
• https://github.com/mailtoharshit/Angular

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Jitendra Zaa
Salesforce MVP
@jitendrazaa
Q & A
Peter Knolle
Salesforce MVP
@peterknolle

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Thank You