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Oracle® Fusion Middleware Mobile Browser Developer's Guide for Oracle Application Development Framework
11g Release 1 (11.1.1.7.0)

Part Number E10140-06
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3 Component Support

This chapter describes the Apache MyFaces Trinidad components that are supported by ADF Mobile browser.

This chapter includes the following sections:

3.1 About Apache My Faces Trinidad Components

ADF Mobile browser supports more than 60 of Apache MyFaces Trinidad components, enabling you to build applications with a rich component set that renders appropriately to the screens of mobile devices. For more information, refer to the Apache MyFaces Trinidad site (http://myfaces.apache.org/trinidad/).

3.1.1 Supported Features

ADF Mobile browser supports the following renderer-specific features:

3.1.2 Partial Page Rendering

The high-latency and low-bandwidth of networks in mobile environments decrease application responsiveness for mobile users. Screens refresh slowly, diminishing the mobile user experience. ADF Mobile browser's support of Partial Page Rendering (PPR) compensates for the negative impact that slow connections have on screen updates by minimizing the amount of data requested from the server; using PPR, mobile device screen updates do not require a full refresh. Browsers that do not support AJAX (Asynchronous JavaScript and XML) use full page rendering instead of PPR. For example, a page submission on basic HTML browsers (which do not support JavaScript) results in the refresh of a full page.

Note:

Browsers for BlackBerry 4.5 (and earlier versions) do not support PPR. Specifying the autosubmit attribute on certain form components results in the submission of the page after the user exits the field. A full, not partial, refresh of the page then follows.

3.1.3 Dialogs

ADF Mobile browser supports dialogs, pages used by applications to obtain user input. Because mobile browsers cannot open a new window that contains a dialog (a pop-up window), they present dialogs as new pages within the main browser window after they automatically preserve the state of the current page.

3.1.4 Rendering Specific to the BlackBerry Browser 4.5 and Earlier Versions

On browsers for BlackBerry 4.5 and earlier versions, the bullets in a list sublevel (such as those in a tr:panelList component) appear large and are not indented. The BlackBerry browser's table handling may affect complex layouts; the BlackBerry browser does not allow horizontal scrolling. Instead, it wraps a table row onto multiple display lines which may disturb the layout. For more information, see Chapter 6, "Design Guidelines for BlackBerry 4.2 to 4.5."

3.2 Input Components

ADF Mobile browser supports input text fields and lists, core components that support user input.

3.2.1 Creating Input Text Fields

You can create input fields using the following components:

  • tr:inputColor

    Note:

    Mobile browsers do not support an inline chooseColor or a color dialog for the tr:inputColor component.

  • tr:inputDate

  • tr:inputHidden

  • tr:inputText

    Note:

    Basic HTML browsers do not support the autosubmit attribute of the tr:inputText component.

    Note:

    Trinidad optimizes the tr:inputText component for narrow-screen devices (that is, devices with a screen width measuring less than 240 pixels). For more information see Chapter 7, "Narrow Screen Support and User Agent Details Support."

3.2.2 Creating Lists

You can create lists using the following components:

  • tr:panelChoice

  • tr:panelList

  • tr:selectBooleanCheckBox

  • tr:selectBooleanRadio

  • tr:selectItem

    Note:

    Mobile browsers do not support the disabled attribute for the tr:selectItem component.

  • tr:selectManyCheckBox

  • tr:selectManyListBox

  • tr:selectOneChoice

  • tr:selectOneListBox

  • tr:selectOneRadio

  • tr:resetButton

    Note:

    Basic HTML browsers do not support the autosubmit attribute for the tr:resetButton component.

3.3 Output Components

ADF Mobile browser uses the Apache MyFacesTrinidad core components that support output on mobile device applications. These components include those for displaying text and images and also components for displaying, or hiding, text.

3.3.1 Displaying Text

The following components enable you to display text:

  • tr:iterator

  • tr:message

  • tr:messages

    Note:

    Component-specific messages do not display on a mobile browser in the same manner as they do in a desktop browser. Instead, they display in the region where the message component (tr:message or tr:messages) is placed on the web page.

  • tr:outputDocument

  • tr:outputForwarded

  • tr:outputLabel

  • tr:outputText

3.3.2 Displaying Images

The following components enable you to display images:

  • tr:icon

  • tr:image

  • tr:panelTip

3.3.3 Showing (or Hiding) Components

The following components enable showing or hiding items:

  • tr:panelAccordion

    Note:

    Mobile browsers only support a full-page update; they do not support the partialTriggers attribute of the tr:panelAccordion component.

  • tr:panelTabbed

    Note:

    To conserve space on mobile devices, the renderer intentionally prevents the display of tab bars on both the top and bottom of the tr:panelTabbed component. Valid values for the attribute positions are top and bottom. If both is specified, then the renderer displays the tabs on top.

  • tr:showDetail

    Note:

    For the tr:showDetail component, the disclosure arrow does not display; the [+] and [-] symbols display instead.

  • tr:showDetailHeader

    Note:

    For the tr:showDetailHeader component, the disclosure arrow does not appear on mobile browsers.

  • tr:showDetailItem

    Note:

    For the tr:showDetailItem component, the disclosure arrow does not appear on mobile browsers its flex attribute is not supported.

3.4 Layout Components

The layout components supported by ADF Mobile browser include those for managing the page itself (such as tr:document and tr:form) as well as components for laying out the sections of a page, such as tr:group, tr:panelFormLayout, and tr:panelGroupLayout.

3.4.1 Managing the Page

The following components enable you to manage the page:

  • tr:document

  • tr:form

    Note:

    Mobile browsers do not support the defaultCommand attribute of the tr:form component.

  • tr:page

Note:

Mobile browsers do not support the tr:page facet of the tr:page component.

3.4.2 Laying Out Sections of the Page

The following ADF Faces core tags support page layout for mobile device applications:

  • tr:group

  • tr:panelBorderLayout

    Note:

    Only the top and bottom facets are supported for the tr:panelBorderLayout component. Mobile browsers do not support the following facets:

    • left

    • right

    • start

    • end

    • innerLeft

    • innerRight

    • innerStart

    • innerEnd

    The tr:panelBorderLayout component does not render if you use any of these unsupported facets.

  • tr:panelBox

  • tr:panelFormLayout

  • tr:panelGroupLayout

  • tr:panelHeader

  • tr:panelHorizontalLayout

    Note:

    Mobile devices do not support the halign=end attribute definition for the tr:panelHorizontalLayout component.

  • tr:panelLabelAndMessage

    Note:

    Trinidad optimizes the tr:panelLabelAndMessage component for narrow-screen devices (that is, devices with a screen width measuring less than 240 pixels). For more information see Section 7.1, "Determining Narrow Screen Support."

  • tr:panelPage

  • tr:panelPageHeader

    Note:

    Mobile devices only support the following facets of the tr:panelPageHeader component:

    • branding

    • brandingApp

    • navigation1

    • navigation2

  • tr:panelRadio

    Note:

    Trinidad optimizes the tr:panelRadio component for narrow-screen devices (that is, devices with a screen width measuring less than 240 pixels). For more information see Section 7.1, "Determining Narrow Screen Support."

  • tr:panelCaptionGroup

3.4.3 Inserting Spaces

The following components control the space allocation on pages:

  • tr:separator

  • tr:spacer

  • tr:subform

3.5 Navigation Components

ADF Mobile browser supports such components as buttons, links, and breadcrumbs that enable users to navigate to other pages of the application, or to external locations.

3.5.1 Creating Buttons

ADF Mobile browser supports the following button types:

  • tr:commandButton

    Note:

    Because the text attribute cannot display if the icon attribute has been set, you can define buttons on mobile devices as text or as an image, but not both. If you set the disabled attribute to true, then a tr:commandButton component with an icon attribute renders as a static image with no links.

  • tr:goButton

See Chapter 8, " Extending ADF Mobile Browser Applications" for information on how to use the tr:goButton component to integrate e-mail, telephony, and Google maps into an application.

3.5.2 Creating Links

ADF Mobile browser supports the following components for creating hyperlinks:

See Chapter 8, " Extending ADF Mobile Browser Applications" for information on how to use the tr:goLink component to integrate e-mail, telephony, and Google maps into an application.

3.5.3 Navigation Components

ADF Mobile browser supports the following navigation components:

  • tr:breadcrumbs

    Note:

    Trinidad optimizes the tr:breadcrumbs component for narrow-screen devices (that is, devices with a screen width measuring less than 240 pixels). For more information see Chapter 7, "Determining Narrow Screen Support."

  • tr:commandNavigationItem

    Note:

    tr:commandNavigationItem does not render when you set the disabled attribute to true for the following:

    • tr:selectOneListBox

    • tr:selectOneChoice

    • tr:processChoiceBar

    • tr:navigationPane with hint, "choice"

    • tr:selectRangeChoiceBar

  • tr:navigationPane

    Note:

    tr:navigationPane hint = "choice" with a destination value is not supported for basic HTML browsers.

    Note:

    Trinidad optimizes the tr:navigationPane component for narrow-screen devices (that is, devices with a screen width measuring less than 240 pixels). For more information see Chapter 7, "Determining Narrow Screen Support."

  • tr:train

    Note:

    The tr:train component appears as x of y instead of listing each item. This is a display-only component in ADF Mobile browser; users cannot navigate through the application by clicking the x of y component. To enable navigation, you must add a separate link or button.

  • tr:processChoiceBar

    Note:

    Trinidad optimizes the tr:processChoiceBar component for narrow-screen devices (that is, devices with a screen width measuring less than 240 pixels). For more information see Section 7.1, "Determining Narrow Screen Support."

  • tr:selectRangeChoiceBar

    Note:

    Trinidad optimizes the tr:selectRangeChoiceBar component for narrow-screen devices (that is, devices with screen width measuring less than 240 pixels). For more information see Chapter 7, "Determining Narrow Screen Support."

3.6 Data Visualization (Graphs and Gauges)

ADF Mobile browser supports data visualization tools (DVTs), described in the "Creating Databound ADF Data Visualization Components" section in Oracle Fusion Middleware Fusion Developer's Guide for Oracle Application Development Framework.

ADF Mobile browser supports the following types of graphs:

ADF Mobile browser supports the following types of gauges:

To add these components to an application, first move a data control into the source editor using a drag-and-drop operation and then select Trinidad Gauges or Trinidad Graphs from the context menu. For example, Figure 3-1 illustrates the context menu when you drag a collection into a component in the source editor.

Figure 3-1 Creating DVT Components

Data control context menu

After you select either the Trinidad Graphs or Trinidad Gauges options, the DVT wizard appears and opens to the Component Gallery page, shown in Figure 3-2. You select the DVT type from this page.

Note:

For Oracle Fusion Middleware 11g release 1, ADF Mobile browser supports only static graphs and gauges, both of which are rendered as PNG images. Any mobile device that supports this image format can display graphs and gauges.

Figure 3-2 The Component Gallery for Trinidad Graphs

DVT wizard Component Gallery

3.7 Tables and Trees

ADF Mobile browser applications can display structured data in the rows and columns of a table or hierarchically as trees.

3.7.1 Creating Tables

ADF Mobile browser supports tables comprised of the following components:

  • tr:table

    Note:

    ADF Mobile browser does not support the allDetailsEnabled attribute for the tr:table component; this attribute is always set to false.

  • tr:column

    Note:

    When you nest tr:column tags to create column groups, the header facets do not render for the column groups.

Creating a single-column table optimizes how tables display on mobile devices.

3.7.2 Creating Trees

ADF Mobile browser supports the tr:tree component.

Note:

tr:tree may not render on basic HTML browsers.

3.8 Unsupported Components and Attributes

Release 11g of ADF Mobile browser does not support some components or attributes.

3.8.1 Unsupported Components

Release 11g of ADF Mobile browser does not support the following components:

  • tr:chart

  • tr:chooseColor

  • tr:chooseDate

  • tr:inputFile

  • tr:inputListOFVariables

  • tr:inputNumberSpinbox

  • tr:legend

  • tr:media

  • tr:navigationTree

  • tr:panelButtonBar

  • tr:panelPopup

  • tr:panelSideBar

  • tr:poll

  • tr:progressIndicator

  • tr:selectManyShuttle

  • tr:selectOrderShuttle

  • tr:singleStepButtonBar

  • tr:statusIndicator

  • tr:switcher

  • tr:treeTable

3.8.2 Unsupported Attributes

Release 11g of ADF Mobile browser does not support the following component attributes on any component.

  • accessKey

  • shortDesc (tooltip)