com.smartgwt.client.widgets

Class ViewLoader

java.lang.Object

com.google.gwt.user.client.ui.UIObject

com.google.gwt.user.client.ui.Widget

com.smartgwt.client.widgets.BaseWidget

com.smartgwt.client.widgets.Canvas

com.smartgwt.client.widgets.StatefulCanvas

com.smartgwt.client.widgets.Button

com.smartgwt.client.widgets.Label

com.smartgwt.client.widgets.ViewLoader

All Implemented Interfaces:

com.google.gwt.event.logical.shared.HasAttachHandlers, com.google.gwt.event.shared.HasHandlers, com.google.gwt.user.client.EventListener, com.google.gwt.user.client.ui.HasVisibility, com.google.gwt.user.client.ui.IsWidget, LogicalStructure, HasClickHandlers, HasDoubleClickHandlers, HasDragMoveHandlers, HasDragRepositionMoveHandlers, HasDragRepositionStartHandlers, HasDragRepositionStopHandlers, HasDragResizeMoveHandlers, HasDragResizeStartHandlers, HasDragResizeStopHandlers, HasDragStartHandlers, HasDragStopHandlers, HasDropHandlers, HasDropMoveHandlers, HasDropOutHandlers, HasDropOverHandlers, HasFocusChangedHandlers, HasHoverHandlers, HasHoverHiddenHandlers, HasIconClickHandlers, HasKeyDownHandlers, HasKeyPressHandlers, HasMouseDownHandlers, HasMouseMoveHandlers, HasMouseOutHandlers, HasMouseOverHandlers, HasMouseStillDownHandlers, HasMouseUpHandlers, HasMouseWheelHandlers, HasMovedHandlers, HasParentMovedHandlers, HasResizedHandlers, HasRightMouseDownHandlers, HasScrolledHandlers, HasShowContextMenuHandlers, HasTitleHoverHandlers, HasVisibilityChangedHandlers

public class ViewLoader
extends Label

The ViewLoader component can be used to load new Smart GWT-based user interfaces into a running application.

NOTE: before using a ViewLoader, be sure that you have read about and understood the Smart GWT Architecture. The most responsive and scalable application architecture preloads views rather than using ViewLoaders.

A ViewLoader is a Canvas, and can be provided anywhere a Canvas can be provided: as a Tab pane, and Layout member, etc. When a ViewLoader draws, it shows a loading message, then performs an RPC to the viewURL to load components.

The response from the viewURL should be Smart GWT components defined in JavaScript, with no surrounding <SCRIPT> tags or other HTML framing. The returned script can be dynamically generated, for example, it may be the result of a JSP containing an XML view description enclosed in <isomorphicXML> tags.

In the returned script, the special variable "viewLoader" is available to refer to the ViewLoader instance that is loading components. The intended usage is that the returned script creates a view consisting of Smart GWT components, then calls viewLoader.setView(myView) to place the loaded view into the ViewLoader. If the view does not call setView() explicitly, the viewLoader will find the last top-level UI component (Canvas subclass) created by the view and set that as the current view. Top-level in this case means that the UI component is not contained in another UI component as a member or child.

The ViewLoader relies on the XMLHttpRequest object which can be disabled by end-users in some supported browsers. See PlatformDependencies for more information.

See Also:

RPCRequest.getEvalResult()

Nested Class Summary

Nested classes/interfaces inherited from class com.google.gwt.user.client.ui.UIObject

com.google.gwt.user.client.ui.UIObject.DebugIdImpl, com.google.gwt.user.client.ui.UIObject.DebugIdImplEnabled

Field Summary

Fields inherited from class com.smartgwt.client.widgets.BaseWidget

config, configOnly, factoryCreated, factoryProperties, id, nativeObject, scClassName

Fields inherited from class com.google.gwt.user.client.ui.UIObject

DEBUG_ID_PREFIX

Constructor Summary

Constructors

Constructor and Description
ViewLoader()
ViewLoader(com.google.gwt.core.client.JavaScriptObject jsObj)

Method Summary

Modifier and Type	Method and Description
static void	changeAutoChildDefaults(java.lang.String autoChildName, Canvas defaults) Changes the defaults for Canvas AutoChildren named autoChildName.
static void	changeAutoChildDefaults(java.lang.String autoChildName, FormItem defaults) Changes the defaults for FormItem AutoChildren named autoChildName.
protected com.google.gwt.core.client.JavaScriptObject	create()
java.lang.Boolean	getAllowCaching() By default a ViewLoader will explicitly prevent browser caching.
java.lang.String	getHttpMethod() Selects the HTTP method that will be used when fetching content.
java.lang.String	getLoadingMessage() Message to show while the view is loading.
com.smartgwt.logicalstructure.core.LogicalStructureObject	getLogicalStructure() Getter implementing the LogicalStructure interface, which supports Eclipse's logical structure debugging facility.
static ViewLoader	getOrCreateRef(com.google.gwt.core.client.JavaScriptObject jsObj)
Canvas	getView() Retrieve the current view.
java.lang.String	getViewURL() URL to load components from.
void	setAllowCaching(java.lang.Boolean allowCaching) By default a ViewLoader will explicitly prevent browser caching.
static void	setDefaultProperties(ViewLoader viewLoaderProperties) Class level method to set the default properties of this class.
void	setHttpMethod(java.lang.String httpMethod) Selects the HTTP method that will be used when fetching content.
void	setLoadingMessage(java.lang.String loadingMessage) Message to show while the view is loading.
com.smartgwt.logicalstructure.core.LogicalStructureObject	setLogicalStructure(com.smartgwt.logicalstructure.widgets.ViewLoaderLogicalStructure s) Setter implementing the LogicalStructure interface, which supports Eclipse's logical structure debugging facility.
void	setViewURL(java.lang.String viewURL) URL to load components from.
void	viewLoaded(Canvas view) StringMethod fired when the view has been loaded.

Methods inherited from class com.smartgwt.client.widgets.Label

getAlign, getAutoFit, getContents, getDynamicContents, getEditProxyConstructor, getIcon, getIconAlign, getIconHeight, getIconOrientation, getIconSize, getIconSpacing, getIconWidth, getShowDisabledIcon, getShowDownIcon, getShowFocusedIcon, getShowRollOverIcon, getShowSelectedIcon, getStyleName, getValign, getWrap, setAlign, setAutoFit, setContents, setDefaultProperties, setDynamicContents, setEditProxyConstructor, setIcon, setIconAlign, setIconHeight, setIconOrientation, setIconSize, setIconSpacing, setIconWidth, setLogicalStructure, setShowDisabledIcon, setShowDownIcon, setShowFocusedIcon, setShowRollOverIcon, setShowSelectedIcon, setStyleName, setValign, setWrap

Methods inherited from class com.smartgwt.client.widgets.Button

action, addIconClickHandler, addTitleHoverHandler, addToRadioGroup, deselect, getActionType, getBaseStyle, getDisabledIconCursor, getHiliteAccessKey, getIconCursor, getIconStyle, getRadioGroup, getSelected, getShowClippedTitleOnHover, getShowDisabled, getShowDown, getShowFocused, getShowRollOver, getState, getTitle, isSelected, removeFromRadioGroup, removeFromRadioGroup, select, setActionType, setBaseStyle, setDefaultProperties, setDisabledIconCursor, setHiliteAccessKey, setIconCursor, setIconStyle, setLogicalStructure, setRadioGroup, setSelected, setShowClippedTitleOnHover, setShowDisabled, setShowDown, setShowFocused, setShowRollOver, setState, setTitle, setTitleHoverFormatter, titleClipped, titleHoverHTML

Methods inherited from class com.smartgwt.client.widgets.StatefulCanvas

getIgnoreRTL, getOverCanvas, getOverCanvasConstructor, getRedrawOnStateChange, getShowFocusedAsOver, getShowOverCanvas, getShowRTLIcon, getStateSuffix, setDefaultProperties, setIgnoreRTL, setLogicalStructure, setOverCanvasConstructor, setRedrawOnStateChange, setShowFocusedAsOver, setShowOverCanvas, setShowRTLIcon, setTitleStyle

Methods inherited from class com.smartgwt.client.widgets.Canvas

addChild, addChild, addChild, addChild, addChild, addClickHandler, addDoubleClickHandler, addDragMoveHandler, addDragRepositionMoveHandler, addDragRepositionStartHandler, addDragRepositionStopHandler, addDragResizeMoveHandler, addDragResizeStartHandler, addDragResizeStopHandler, addDragStartHandler, addDragStopHandler, addDropHandler, addDropMoveHandler, addDropOutHandler, addDropOverHandler, addFocusChangedHandler, addHoverHandler, addHoverHiddenHandler, addKeyDownHandler, addKeyPressHandler, addMouseDownHandler, addMouseMoveHandler, addMouseOutHandler, addMouseOverHandler, addMouseStillDownHandler, addMouseUpHandler, addMouseWheelHandler, addMovedHandler, addParentMovedHandler, addPeer, addPeer, addPeer, addPeer, addResizedHandler, addRightMouseDownHandler, addScrolledHandler, addShowContextMenuHandler, addSnapAlignCandidate, addStyleName, addVisibilityChangedHandler, adjustForContent, animateFade, animateFade, animateFade, animateFade, animateFade, animateFade, animateFade, animateFade, animateHide, animateHide, animateHide, animateMove, animateMove, animateMove, animateMove, animateRect, animateRect, animateRect, animateRect, animateResize, animateResize, animateResize, animateResize, animateScroll, animateScroll, animateScroll, animateScroll, animateScroll, animateScroll, animateShow, animateShow, animateShow, animateShow, animateShow, animateShow, asSGWTComponent, blur, bringToFront, clear, clickMaskUp, clickMaskUp, contains, contains, containsEvent, containsFocus, containsPoint, containsPoint, deparent, depeer, disable, enable, encloses, focus, focusInNextTabElement, focusInPreviousTabElement, getAbsoluteLeft, getAbsoluteTop, getAccessKey, getAlwaysShowScrollbars, getAnimateAcceleration, getAnimateFadeTime, getAnimateHideAcceleration, getAnimateHideTime, getAnimateMoveAcceleration, getAnimateMoveTime, getAnimateRectAcceleration, getAnimateRectTime, getAnimateResizeAcceleration, getAnimateResizeTime, getAnimateScrollAcceleration, getAnimateScrollTime, getAnimateShowAcceleration, getAnimateShowEffect, getAnimateShowTime, getAnimateTime, getAppImgDir, getAriaRole, getAutoDraw, getAutoMaskComponents, getAutoShowParent, getBackgroundColor, getBackgroundImage, getBackgroundPosition, getBackgroundRepeat, getBorder, getBottom, getById, getByJSObject, getByLocalId, getCanAcceptDrop, getCanDrag, getCanDragReposition, getCanDragResize, getCanDragScroll, getCanDrop, getCanDropBefore, getCanFocus, getCanHover, getCanSelectText, getCanvasAutoChild, getCanvasItem, getChildren, getChildrenResizeSnapAlign, getChildrenSnapAlign, getChildrenSnapCenterAlign, getChildrenSnapEdgeAlign, getChildrenSnapResizeToGrid, getChildrenSnapToGrid, getClassName, getComponentMask, getComponentMaskDefaults, getContentElement, getContextMenu, getCursor, getDataPath, getDefaultHeight, getDefaultWidth, getDestroyed, getDestroying, getDisabled, getDisabledCursor, getDisableTouchScrollingForDrag, getDoubleClickDelay, getDragAppearance, getDragIntersectStyle, getDragMaskType, getDragOpacity, getDragRepositionAppearance, getDragRepositionCursor, getDragResizeAppearance, getDragScrollDelay, getDragStartDistance, getDragTarget, getDragType, getDropTypes, getDropTypesAsString, getEdgeBackgroundColor, getEdgeCenterBackgroundColor, getEdgeImage, getEdgeMarginSize, getEdgeOffset, getEdgeOpacity, getEdgeShowCenter, getEdgeSize, getEditNode, getEditProxy, getElement, getElement, getEventEdge, getEventEdge, getExtraSpace, getFacetId, getFormItemAutoChild, getFullDataPath, getGroupBorderCSS, getGroupLabelBackgroundColor, getGroupLabelStyleName, getGroupTitle, getHeight, getHeightAsString, getHideUsingDisplayNone, getHoverAlign, getHoverAutoDestroy, getHoverComponent, getHoverDelay, getHoverHeight, getHoverHTML, getHoverMoveWithMouse, getHoverOpacity, getHoverStyle, getHoverVAlign, getHoverWidth, getHoverWrap, getHSnapOrigin, getHSnapOrigin, getHSnapPosition, getHSnapPosition, getHtmlElement, getHtmlPosition, getImage, getImgURL, getImgURL, getInnerContentHeight, getInnerContentWidth, getInnerHeight, getInnerWidth, getIsGroup, getIsPrinting, getIsSnapAlignCandidate, getKeepInParentRect, getLayoutAlign, getLeavePageSpace, getLeft, getLeftAsString, getLocateChildrenBy, getLocateChildrenType, getLocatePeersBy, getLocatePeersType, getMargin, getMasterCanvas, getMasterElement, getMatchElement, getMaxHeight, getMaxWidth, getMenuConstructor, getMinHeight, getMinNonEdgeSize, getMinWidth, getMomentumScrollMinSpeed, getMouseStillDownDelay, getMouseStillDownInitialDelay, getNextZIndex, getNoDoubleClicks, getNoDropCursor, getOffsetHeight, getOffsetWidth, getOffsetX, getOffsetY, getOpacity, getOuterElement, getOverflow, getPadding, getPageBottom, getPageLeft, getPageRect, getPageRight, getPageTop, getPanelContainer, getParentCanvas, getParentElement, getPeers, getPercentBox, getPercentSource, getPosition, getPrefix, getPrintChildrenAbsolutelyPositioned, getPrintHTML, getPrintHTML, getPrompt, getProportionalResizeModifiers, getProportionalResizing, getRect, getRedrawOnResize, getResizeBarTarget, getResizeFrom, getRight, getScrollbarSize, getScrollBottom, getScrollHeight, getScrollLeft, getScrollRight, getScrollTop, getScrollWidth, getShadowDepth, getShadowImage, getShadowOffset, getShadowSoftness, getShouldPrint, getShowCustomScrollbars, getShowDragShadow, getShowEdges, getShowHover, getShowHoverComponents, getShowResizeBar, getShowShadow, getShowSnapGrid, getShrinkElementOnHide, getSkinImgDir, getSnapAlignCandidates, getSnapAlignCenterLineStyle, getSnapAlignEdgeLineStyle, getSnapAxis, getSnapEdge, getSnapHDirection, getSnapHGap, getSnapOffsetLeft, getSnapOffsetTop, getSnapOnDrop, getSnapPosition, getSnapPosition, getSnapResizeToAlign, getSnapResizeToGrid, getSnapTo, getSnapToAlign, getSnapToCenterAlign, getSnapToEdgeAlign, getSnapToGrid, getSnapVDirection, getSnapVGap, getTabIndex, getTestInstance, getTooltip, getTop, getTopAsString, getTopElement, getUseBackMask, getUseDragMask, getUseNativeDrag, getUseOpacityFilter, getUseTouchScrolling, getValuesManager, getViewportHeight, getViewportWidth, getVisibility, getVisibleHeight, getVisibleWidth, getVSnapOrigin, getVSnapOrigin, getVSnapPosition, getVSnapPosition, getWidth, getWidthAsString, getZIndex, getZIndex, handleHover, hide, hideClickMask, hideClickMask, hideComponentMask, hideComponentMask, hideContextMenu, imgHTML, imgHTML, imgHTML, intersects, isDirty, isDisabled, isDrawn, isFocused, isVisible, keyUp, layoutChildren, linkHTML, linkHTML, linkHTML, linkHTML, linkHTML, linkHTML, markForDestroy, markForRedraw, markForRedraw, moveAbove, moveBelow, moveBy, moveTo, onAttach, onDetach, onInit, pageScrollDown, pageScrollUp, parentResized, placeNear, placeNear, placeNear, printComponents, provideRuleContext, redraw, redraw, removeChild, removeChild, removePeer, removePeer, removeSnapAlignCandidate, resizeBy, resizeTo, resizeTo, revealChild, revealChild, scrollBy, scrollByPercent, scrollTo, scrollTo, scrollTo, scrollToBottom, scrollToLeft, scrollToPercent, scrollToRight, scrollToTop, sendToBack, setAccessKey, setAllowExternalFilters, setAlwaysShowScrollbars, setAnimateAcceleration, setAnimateFadeTime, setAnimateHideAcceleration, setAnimateHideTime, setAnimateMoveAcceleration, setAnimateMoveTime, setAnimateRectAcceleration, setAnimateRectTime, setAnimateResizeAcceleration, setAnimateResizeTime, setAnimateScrollAcceleration, setAnimateScrollTime, setAnimateShowAcceleration, setAnimateShowEffect, setAnimateShowTime, setAnimateTime, setAppImgDir, setAriaRole, setAriaState, setAutoChildConstructor, setAutoChildProperties, setAutoChildProperties, setAutoChildProperties, setAutoChildProperties, setAutoChildVisibility, setAutoDraw, setAutoHeight, setAutoMaskComponents, setAutoShowParent, setAutoWidth, setBackgroundColor, setBackgroundImage, setBackgroundPosition, setBackgroundRepeat, setBorder, setBottom, setCanAcceptDrop, setCanDrag, setCanDragReposition, setCanDragResize, setCanDragScroll, setCanDrop, setCanDropBefore, setCanFocus, setCanHover, setCanSelectText, setChildren, setChildrenResizeSnapAlign, setChildrenSnapAlign, setChildrenSnapCenterAlign, setChildrenSnapEdgeAlign, setChildrenSnapResizeToGrid, setChildrenSnapToGrid, setComponentMaskDefaults, setContextMenu, setCursor, setDataPath, setDefaultHeight, setDefaultPageSpace, setDefaultProperties, setDefaultWidth, setDisabled, setDisabledCursor, setDisableTouchScrollingForDrag, setDoubleClickDelay, setDragAppearance, setDragIntersectStyle, setDragMaskType, setDragOpacity, setDragRepositionAppearance, setDragRepositionCursor, setDragResizeAppearance, setDragScrollDelay, setDragStartDistance, setDragTarget, setDragType, setDropTypes, setDropTypes, setEdgeBackgroundColor, setEdgeCenterBackgroundColor, setEdgeImage, setEdgeMarginSize, setEdgeOffset, setEdgeOpacity, setEdgeShowCenter, setEdgeSize, setEditMode, setEditMode, setEditMode, setElement, setExtraSpace, setFacetId, setGroupBorderCSS, setGroupLabelBackgroundColor, setGroupLabelStyleName, setGroupTitle, setHeight, setHeight, setHeight, setHeight100, setHideUsingDisplayNone, setHoverAlign, setHoverAutoDestroy, setHoverDelay, setHoverHeight, setHoverMoveWithMouse, setHoverOpacity, setHoverStyle, setHoverVAlign, setHoverWidth, setHoverWrap, setHtmlElement, setHtmlPosition, setImage, setImage, setInitHandler, setIsGroup, setIsSnapAlignCandidate, setKeepInParentRect, setKeepInParentRect, setKeepInParentRect, setLayoutAlign, setLayoutAlign, setLeavePageSpace, setLeft, setLeft, setLocateChildrenBy, setLocateChildrenType, setLocatePeersBy, setLocatePeersType, setLogicalStructure, setMargin, setMatchElement, setMaxHeight, setMaxWidth, setMenuConstructor, setMinHeight, setMinNonEdgeSize, setMinWidth, setMomentumScrollMinSpeed, setMouseStillDownDelay, setMouseStillDownInitialDelay, setNeverUseFilters, setNoDoubleClicks, setNoDropCursor, setOpacity, setOverflow, setPadding, setPageLeft, setPageTop, setParentCanvas, setParentElement, setPeers, setPercentBox, setPercentSource, setPosition, setPrefix, setPrintChildrenAbsolutelyPositioned, setPrompt, setProportionalResizeModifiers, setProportionalResizing, setRect, setRect, setRedrawOnResize, setResizeBarTarget, setResizeFrom, setResizeFrom, setRight, setScrollbarConstructor, setScrollbarSize, setShadowDepth, setShadowImage, setShadowOffset, setShadowSoftness, setShouldPrint, setShowCustomScrollbars, setShowDragShadow, setShowEdges, setShowHover, setShowHoverComponents, setShowResizeBar, setShowShadow, setShowSnapGrid, setShrinkElementOnHide, setSkinImgDir, setSmoothFade, setSnapAlignCandidates, setSnapAlignCenterLineStyle, setSnapAlignEdgeLineStyle, setSnapAxis, setSnapEdge, setSnapHDirection, setSnapHGap, setSnapOffsetLeft, setSnapOffsetTop, setSnapOnDrop, setSnapResizeToAlign, setSnapResizeToGrid, setSnapTo, setSnapToAlign, setSnapToCenterAlign, setSnapToEdgeAlign, setSnapToGrid, setSnapVDirection, setSnapVGap, setTabIndex, setTooltip, setTop, setTop, setUseBackMask, setUseDragMask, setUseNativeDrag, setUseOpacityFilter, setUseTouchScrolling, setValuesManager, setVisibility, setVisible, setWidth, setWidth, setWidth, setWidth100, setZIndex, shouldDragScroll, show, showClickMask, showComponentMask, showComponentMask, showNextTo, showNextTo, showNextTo, showNextTo, showPrintPreview, showPrintPreview, showPrintPreview, showPrintPreview, showRecursively, updateEditNode, updateHover, updateHover, updateShadow, visibleAtPoint, willAcceptDrop

Methods inherited from class com.smartgwt.client.widgets.BaseWidget

addDrawHandler, applyFactoryProperties, destroy, doAddHandler, doInit, doOnRender, draw, equals, error, errorIfNotCreated, getAttribute, getAttributeAsBoolean, getAttributeAsDate, getAttributeAsDateArray, getAttributeAsDouble, getAttributeAsElement, getAttributeAsFloat, getAttributeAsFloatArray, getAttributeAsInt, getAttributeAsIntArray, getAttributeAsJavaScriptObject, getAttributeAsMap, getAttributeAsRecord, getAttributeAsString, getAttributeAsStringArray, getConfig, getDOM, getHandlerCount, getID, getInnerHTML, getJsObj, getOrCreateJsObj, getRef, getScClassName, hasAutoAssignedID, hashCode, initNativeObject, internalSetID, internalSetID, isConfigOnly, isCreated, isFactoryCreated, onBind, onDestroy, onDraw, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setAttribute, setConfig, setConfigOnly, setDragTracker, setFactoryCreated, setID, setJavaScriptObject, setLogicalStructure, setNullProperty, setPosition, setProperty, setProperty, setProperty, setProperty, setProperty, setProperty, setProperty, setScClassName, toString

Methods inherited from class com.google.gwt.user.client.ui.Widget

addAttachHandler, addBitlessDomHandler, addDomHandler, addHandler, asWidget, asWidgetOrNull, createHandlerManager, delegateEvent, doAttachChildren, doDetachChildren, fireEvent, getLayoutData, getParent, isAttached, isOrWasAttached, onBrowserEvent, onLoad, onUnload, removeFromParent, setLayoutData, sinkEvents, unsinkEvents

Methods inherited from class com.google.gwt.user.client.ui.UIObject

addStyleDependentName, ensureDebugId, ensureDebugId, ensureDebugId, getStyleElement, getStyleName, getStylePrimaryName, getStylePrimaryName, isVisible, onEnsureDebugId, removeStyleDependentName, removeStyleName, resolvePotentialElement, setElement, setPixelSize, setSize, setStyleDependentName, setStyleName, setStyleName, setStyleName, setStylePrimaryName, setStylePrimaryName, setVisible, sinkBitlessEvent

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.google.gwt.event.shared.HasHandlers

fireEvent

Constructor Detail

ViewLoader

public ViewLoader()

ViewLoader

public ViewLoader(com.google.gwt.core.client.JavaScriptObject jsObj)

Method Detail

getOrCreateRef

public static ViewLoader getOrCreateRef(com.google.gwt.core.client.JavaScriptObject jsObj)

changeAutoChildDefaults

public static void changeAutoChildDefaults(java.lang.String autoChildName,
                                           Canvas defaults)

Changes the defaults for Canvas AutoChildren named autoChildName.

Parameters:

autoChildName - name of an AutoChild to customize the defaults for.

defaults - Canvas defaults to apply. These defaults override any existing properties without destroying or wiping out non-overridden properties. For usage tips on this param, see SGWTProperties.

See Also:

AutoChildUsage

changeAutoChildDefaults

public static void changeAutoChildDefaults(java.lang.String autoChildName,
                                           FormItem defaults)

Changes the defaults for FormItem AutoChildren named autoChildName.

Parameters:

autoChildName - name of an AutoChild to customize the defaults for.

defaults - FormItem defaults to apply. These defaults override any existing properties without destroying or wiping out non-overridden properties. For usage tips on this param, see SGWTProperties.

See Also:

AutoChildUsage

create

protected com.google.gwt.core.client.JavaScriptObject create()

Overrides:

create in class Label

setAllowCaching

public void setAllowCaching(java.lang.Boolean allowCaching)
                     throws java.lang.IllegalStateException

By default a ViewLoader will explicitly prevent browser caching.

Set to true to allow browser caching if the browser would normally do so, in other words, if the HTTP headers returned with the response indicate that the response can be cached.

Parameters:

allowCaching - Default value is false

Throws:

java.lang.IllegalStateException - this property cannot be changed after the component has been created

getAllowCaching

public java.lang.Boolean getAllowCaching()

By default a ViewLoader will explicitly prevent browser caching.

Set to true to allow browser caching if the browser would normally do so, in other words, if the HTTP headers returned with the response indicate that the response can be cached.

Returns:

Boolean

setHttpMethod

public void setHttpMethod(java.lang.String httpMethod)

Selects the HTTP method that will be used when fetching content. Valid values are "POST" and "GET".

Parameters:

httpMethod - Default value is "GET"

getHttpMethod

public java.lang.String getHttpMethod()

Selects the HTTP method that will be used when fetching content. Valid values are "POST" and "GET".

Returns:

String

setLoadingMessage

public void setLoadingMessage(java.lang.String loadingMessage)
                       throws java.lang.IllegalStateException

Message to show while the view is loading. Use "${loadingImage}" to include a loading image.

Parameters:

loadingMessage - See HTMLString . Default value is "Loading View...&nbsp;${loadingImage}"

Throws:

java.lang.IllegalStateException - this property cannot be changed after the component has been created

getLoadingMessage

public java.lang.String getLoadingMessage()

Message to show while the view is loading. Use "${loadingImage}" to include a loading image.

Returns:

See HTMLString

setViewURL

public void setViewURL(java.lang.String viewURL)
                throws java.lang.IllegalStateException

URL to load components from.

If this method is called after the component has been drawn/initialized: Change the URL this component loads a view from. Triggers a fetch from the new URL.

Can also be called with no arguments to reload the view from the existing viewURL.

Parameters:

viewURL - URL to retrieve view from. Default value is null

Throws:

java.lang.IllegalStateException - this property cannot be changed after the component has been created

getViewURL

public java.lang.String getViewURL()

URL to load components from.

Returns:

String

getView

public Canvas getView()

Retrieve the current view. May be null if the view has not yet been loaded, or has been explicitly set to null.

Returns:

the current view

viewLoaded

public void viewLoaded(Canvas view)

StringMethod fired when the view has been loaded. Has no default implementation. May be observed or overridden to fire custom logic when loading completes.

Parameters:

view - the view that was loaded

setDefaultProperties

public static void setDefaultProperties(ViewLoader viewLoaderProperties)

Class level method to set the default properties of this class. If set, then all existing and subsequently created instances of this class will automatically have default properties corresponding to the properties set on the SmartGWT class instance passed to this function before its underlying SmartClient JS object was created. This is a powerful feature that eliminates the need for users to create a separate hierarchy of subclasses that only alter the default properties of this class. Can also be used for skinning / styling purposes.

Note: This method is intended for setting default attributes only and will affect all instances of the underlying class (including those automatically generated in JavaScript). This method should not be used to apply standard EventHandlers or override methods for a class - use a custom subclass instead. Calling this method after instances have been created can result in undefined behavior, since it bypasses any setters and a class instance may have already examined a particular property and not be expecting any changes through this route.

Parameters:

viewLoaderProperties - properties that should be used as new defaults when instances of this class are created

See Also:

SGWTProperties

setLogicalStructure

public com.smartgwt.logicalstructure.core.LogicalStructureObject setLogicalStructure(com.smartgwt.logicalstructure.widgets.ViewLoaderLogicalStructure s)

Setter implementing the LogicalStructure interface, which supports Eclipse's logical structure debugging facility.

getLogicalStructure

public com.smartgwt.logicalstructure.core.LogicalStructureObject getLogicalStructure()

Getter implementing the LogicalStructure interface, which supports Eclipse's logical structure debugging facility.

Specified by:

getLogicalStructure in interface LogicalStructure

Overrides:

getLogicalStructure in class Label