Hi Jihong, Perhaps a more appropriate place to report this gwt-fabridge bug would be on the project Issue Tracker. I'm sure the developers behind the project would be happy to be notified about a potentially critical issue.
http://code.google.com/p/gwt-fabridge/issues/list Hope that helps, -Sumit Chandel On Thu, Feb 5, 2009 at 6:45 AM, Charlie Collins <[email protected]>wrote: > > You missed my point there. I guess I should have said I don't know OR > care what gwt-fabridge is, but if you want help with it, you might as > on a forum that is relevant to it? > > On Feb 4, 1:37 pm, Jihong <[email protected]> wrote: > > gwt-fabridge is a utility for gwt to access adobe swf file. See the > > following pagehttp://code.google.com/p/gwt-fabridge/ > > > > On Feb 4, 5:59 am, Charlie Collins <[email protected]> wrote: > > > > > I don't know whatgwt-fabridgeis, but maybe that project has it's own > > > support list you can use for issues such as this? Not sure you will > > > get much response here. > > > > > On Feb 3, 4:00 pm, "Jihong Liu" <[email protected]> wrote: > > > > > > Hi. I have a problem forgwt-fabridge. I think it may be a critical > > > > issue forgwt-fabridge. > > > > > > If a swf widget is added into a panel, and then add the panel into a > > > > container. And then remove the panel from the container, and then add > > > > the panel back into the container. Then the Null pointer error will > > > > occur at onInitialization()caused by the swf widget. I did a test > using > > > > the FABridgeDemo. In the FABridgeDemo, I added a button for removing > the > > > > swf widget. > > > > > > When start the program, first click the "Add new SWF", and everything > is > > > > ok. Then click the "Remove SWF", then the swf is removed. Then click > the > > > > "Add new SWF" again, then an error will happen. > > > > > > I have tried many ways, the only way to make it work is to create the > > > > swf widge again and using a different name if the widget has been > > > > removed. For example: > > > > > > java.util.Date date = new java.util.Date(); > > > > > > swfWidget = new > > > > SWFABridgeWidget("app.swf",400,400,"example"+date.getTime()); > > > > > > But it is not good at all. And the behavior is not the same as other > > > > regular gwt widgets. For other widgets, after they are put in a > panel. > > > > Then you can add/drop this panel into/from a container many times > > > > without re-create the inside widgets. > > > > > > I am really frustrated about this problem. Based on user's selection > we > > > > will add different panels into a container for display. It is really > > > > painful if we have to create the swf widgets again if the panel has > been > > > > dropped from the container once. > > > > > > I don't know whether the following code in > > > > pl.rmalinowski.gwt2swf.client.ui.SWFWidge causes problem or not. > > > > > > protected void onUnload() { > > > > > > // GWT.log("onUnload", null); > > > > > > getElement().removeChild(DOM.getFirstChild(getElement())); > > > > > > isSWFInjected = false; > > > > > > super.onUnload(); > > > > > > } > > > > > > The statement: > getElement().removeChild(DOM.getFirstChild(getElement())) > > > > removes the child from the widget. Thus after a swfwidget is removed > > > > from a panel, and then add the swf back, no child there. > > > > > > Following is the code in com.google.gwt.user.client.ui.ComplexPanel > > > > > > @Override > > > > > > public boolean remove(Widget w) { > > > > > > // Validate. > > > > > > if (w.getParent() != this) { > > > > > > return false; > > > > > > } > > > > > > // Orphan. > > > > > > orphan(w); > > > > > > // Physical detach. > > > > > > Element elem = w.getElement(); > > > > > > DOM.removeChild(DOM.getParent(elem), elem); > > > > > > // Logical detach. > > > > > > getChildren().remove(w); > > > > > > return true; > > > > > > } > > > > > > It sounds to me that the different between two programs is that in > > > > ComplexPanel, it removes the widget's element only, but in SWFWidge, > it > > > > removes the child of the widget's element. > > > > > > Thank you very much! > > > > > > Jihong Liu > > > > > > Following is the source code which causes problem > > > > > > package com.satmetrix.swfTest.client; > > > > > > import org.argunet.gwt.fabridge.client.SWFABridgeWidget; > > > > > > import org.argunet.gwt.fabridge.client.bridge.BridgeObject; > > > > > > import org.argunet.gwt.fabridge.client.bridge.BridgeParameter; > > > > > > import org.argunet.gwt.fabridge.client.bridge.BridgeParameterObject; > > > > > > import > org.argunet.gwt.fabridge.client.events.IInitializationListener; > > > > > > import org.argunet.gwt.fabridge.client.events.ISWFListener; > > > > > > import org.argunet.gwt.fabridge.client.utils.JSNIUtils; > > > > > > import com.google.gwt.core.client.EntryPoint; > > > > > > import com.google.gwt.core.client.JavaScriptObject; > > > > > > import com.google.gwt.user.client.Window; > > > > > > import com.google.gwt.user.client.ui.Button; > > > > > > import com.google.gwt.user.client.ui.ClickListener; > > > > > > import com.google.gwt.user.client.ui.Label; > > > > > > import com.google.gwt.user.client.ui.RootPanel; > > > > > > import com.google.gwt.user.client.ui.Widget; > > > > > > public class FABridgeDemo implements EntryPoint, > IInitializationListener > > > > { > > > > > > private final Button addNewSwf = new Button("Add new SWF"); > > > > > > private final Button removeSwf = new Button("Remove SWF"); > > > > > > private final Button setCheckBox = new Button("Set Checkbox > > > > property"); > > > > > > private final Label sliderLabel = new Label("Slider Label"); > > > > > > private SWFABridgeWidget swfWidget=null; > > > > > > private final Button createDataGrid = new Button("Create Data > > > > Grid"); > > > > > > /** > > > > > > * This is the entry point method. > > > > > > */ > > > > > > public void onModuleLoad() { > > > > > > RootPanel.get().add(addNewSwf); > > > > > > RootPanel.get().add(removeSwf); > > > > > > RootPanel.get().add(setCheckBox); > > > > > > RootPanel.get().add(sliderLabel); > > > > > > RootPanel.get().add(createDataGrid); > > > > > > // adds new swfWidget to rootPanel > > > > > > addNewSwf.addClickListener(new ClickListener() { > > > > > > public void onClick(Widget arg0) { > > > > > > // set bridge name for FABridge > > > > > > if (swfWidget==null) { > > > > > > swfWidget = new > > > > SWFABridgeWidget("app.swf",400,400,"example"); > > > > > > // add initialization listener > > > > > > swfWidget.addInitializationListener(FABridgeDemo.this); > > > > > > } > > > > > > // add swfWidget to RootPanel > > > > > > RootPanel.get().add(swfWidget); > > > > > > //show swf movie > > > > > > swfWidget.show(); > > > > > > } > > > > > > }); > > > > > > removeSwf.addClickListener(new ClickListener() { > > > > > > public void onClick(Widget arg0) { > > > > > > RootPanel.get().remove(swfWidget); > > > > > > } > > > > > > }); > > > > > > // changes checkbox status in swfWidget > > > > > > setCheckBox.addClickListener(new ClickListener() { > > > > > > public void onClick(Widget arg0) { > > > > > > // get check box > > > > > > BridgeObject check = > > > > swfWidget.root().getObject("check"); > > > > > > // get check box status > > > > > > Boolean status = new > > > > Boolean(check.getProperty("selected").getContent().toString()); > > > > > > // change check box status > > > > > > check.setProperty("selected", > > > > !status.booleanValue()); > > > > > > } > > > > > > }); > > > > > > // creates new DataGrid in swfWidget > > > > > > createDataGrid.addClickListener(new ClickListener() { > > > > > > public void onClick(Widget arg0) { > > > > > > BridgeObject flexApp = swfWidget.root(); > > > > > > // create new data grid > > > > > > BridgeObject grid = > > > > swfWidget.create("mx.controls.DataGrid"); > > > > > > grid.addRef(); > > > > > > // create first column > > > > > > BridgeObject col1 = > > > > swfWidget.create("mx.controls.dataGridClasses.DataGridColumn"); > > > > > > col1.addRef(); > > > > > > col1.setProperty("dataField", "apples"); > > > > > > // create second column > > > > > > BridgeObject col2 = > > > > swfWidget.create("mx.controls.dataGridClasses.DataGridColumn"); > > > > > > col2.addRef(); > > > > > > col2.setProperty("dataField", "oranges"); > > > > > > // add columns to data grid > > > > > > JavaScriptObject jsArray = JSNIUtils > > > > > > .convertArray(new > JavaScriptObject[] > > > > { > > > > > > col1.getJSContent(), > > > > col2.getJSContent() }); > > > > > > grid.setProperty("columns", jsArray); > > > > > > grid.setProperty("width", 300); > > > > > > // create first row > > > > > > BridgeParameterObject row1 = new > > > > BridgeParameterObject(); > > > > > > row1.addProperty("apples", 12); > > > > > > row1.addProperty("oranges", 32); > > > > > > // create second row > > > > > > BridgeParameterObject row2 = new > > > > BridgeParameterObject(); > > > > > > row2.addProperty("apples", 15); > > > > > > row2.addProperty("oranges", 24); > > > > > > // set dataProvider > > > > > > > > > > ... > > > > read more ยป > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. 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