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com.google.gwt.user.client.ui
Class HTMLPanel

java.lang.Object
  extended by com.google.gwt.user.client.ui.UIObject
      extended by com.google.gwt.user.client.ui.Widget
          extended by com.google.gwt.user.client.ui.Panel
              extended by com.google.gwt.user.client.ui.ComplexPanel
                  extended by com.google.gwt.user.client.ui.HTMLPanel
All Implemented Interfaces:
HasHandlers, EventListener, HasWidgets, IndexedPanel, java.lang.Iterable<Widget>
public class HTMLPanel
extends ComplexPanel

A panel that contains HTML, and which can attach child widgets to identified elements within that HTML.

Nested Class Summary
 
Nested classes/interfaces inherited from class com.google.gwt.user.client.ui.UIObject
UIObject.DebugIdImpl, UIObject.DebugIdImplEnabled
 
Field Summary
 
Fields inherited from class com.google.gwt.user.client.ui.UIObject
DEBUG_ID_PREFIX
 
Constructor Summary
HTMLPanel(java.lang.String html)
          Creates an HTML panel with the specified HTML contents inside a DIV element.
HTMLPanel(java.lang.String tag, java.lang.String html)
          Creates an HTML panel whose root element has the given tag, and with the specified HTML contents.
 
Method Summary
 void add(Widget widget, java.lang.String id)
          Adds a child widget to the panel, contained within the HTML element specified by a given id.
 void addAndReplaceElement(Widget widget, Element toReplace)
          Adds a child widget to the panel, replacing the HTML element.
 void addAndReplaceElement(Widget widget, java.lang.String id)
          Adds a child widget to the panel, replacing the HTML element specified by a given id.
static java.lang.String createUniqueId()
          A helper method for creating unique IDs for elements within dynamically- generated HTML.
 Element getElementById(java.lang.String id)
          Finds an element within this panel by its id.
 
Methods inherited from class com.google.gwt.user.client.ui.ComplexPanel
add, adjustIndex, checkIndexBoundsForAccess, checkIndexBoundsForInsertion, getChildren, getWidget, getWidgetCount, getWidgetIndex, insert, insert, iterator, remove, remove
 
Methods inherited from class com.google.gwt.user.client.ui.Panel
add, adopt, adopt, clear, disown, doAttachChildren, doDetachChildren, onLoad, onUnload, orphan
 
Methods inherited from class com.google.gwt.user.client.ui.Widget
addDomHandler, addHandler, delegateEvent, fireEvent, getHandlerCount, getLayoutData, getParent, isAttached, isOrWasAttached, onAttach, onBrowserEvent, onDetach, removeFromParent, setLayoutData, sinkEvents
 
Methods inherited from class com.google.gwt.user.client.ui.UIObject
addStyleDependentName, addStyleName, ensureDebugId, ensureDebugId, ensureDebugId, getAbsoluteLeft, getAbsoluteTop, getElement, getOffsetHeight, getOffsetWidth, getStyleElement, getStyleName, getStyleName, getStylePrimaryName, getStylePrimaryName, getTitle, isVisible, isVisible, onEnsureDebugId, removeStyleDependentName, removeStyleName, setElement, setElement, setHeight, setPixelSize, setSize, setStyleName, setStyleName, setStyleName, setStylePrimaryName, setStylePrimaryName, setTitle, setVisible, setVisible, setWidth, toString, unsinkEvents
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

HTMLPanel

public HTMLPanel(java.lang.String html)
Creates an HTML panel with the specified HTML contents inside a DIV element. Any element within this HTML that has a specified id can contain a child widget.

Parameters:
html - the panel's HTML

HTMLPanel

public HTMLPanel(java.lang.String tag,
                 java.lang.String html)
Creates an HTML panel whose root element has the given tag, and with the specified HTML contents. Any element within this HTML that has a specified id can contain a child widget.

Parameters:
tag - the tag of the root element
html - the panel's HTML
Method Detail

createUniqueId

public static java.lang.String createUniqueId()
A helper method for creating unique IDs for elements within dynamically- generated HTML. This is important because no two elements in a document should have the same id.

Returns:
a new unique identifier

add

public void add(Widget widget,
                java.lang.String id)
Adds a child widget to the panel, contained within the HTML element specified by a given id.

Parameters:
widget - the widget to be added
id - the id of the element within which it will be contained

addAndReplaceElement

public void addAndReplaceElement(Widget widget,
                                 Element toReplace)
Adds a child widget to the panel, replacing the HTML element.

Parameters:
widget - the widget to be added
toReplace - the element to be replaced by the widget

addAndReplaceElement

public void addAndReplaceElement(Widget widget,
                                 java.lang.String id)
Adds a child widget to the panel, replacing the HTML element specified by a given id.

Parameters:
widget - the widget to be added
id - the id of the element to be replaced by the widget

getElementById

public Element getElementById(java.lang.String id)
Finds an element within this panel by its id. This method uses Document.getElementById(String), so the id must still be unique within the document.

Parameters:
id - the id of the element to be found
Returns:
the element with the given id, or null if none is found
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