From: "力波 王" <wlbleaboy(a)126.com&gt; To: devel(a)ovirt.org Sent: Tuesday, August 12, 2014 7:57:24 AM Subject: [ovirt-devel] popup dialog Hi, everyone: I add a button, named backup in the Template Tab, And the click event is ok. Now I want add a dialog after clicked the button, So, I add a model , but the dialog didn’t display at all. So, I want to know is there some necessary class need To modify or add? The model code is like this: TemplateBackupModel.java ======================================================== public class TemplateBackupModel extends Model { private EntityModel privatePassword; public EntityModel getPassword() { return privatePassword; } public void setPassword(EntityModel value) { privatePassword = value; } public TemplateBackupModel(){ setPassword(new EntityModel()); AsyncQuery _asyncQuery = new AsyncQuery(); _asyncQuery.setModel(this); _asyncQuery.asyncCallback = new INewAsyncCallback() { @Override public void onSuccess(Object model, Object result) { } }; } @Override public void eventRaised(Event ev, Object sender, EventArgs args) { super.eventRaised(ev, sender, args); } public boolean validate(){ return true; } } ======================================================== And created a model in the backup button click callback like this： ======================================================== public void backup() { if (getWindow() != null) { return; } TemplateBackupModel model = new TemplateBackupModel(); setWindow(model); model.setTitle("TemplateBackup");//$NON-NLS-1$ model.setHashName("TemplateBackup");//$NON-NLS-1$ UICommand tempVar = new UICommand("OnBackup", this); //$NON-NLS-1$ tempVar.setTitle(ConstantsManager.getInstance().getConstants().ok()); tempVar.setIsDefault(true); model.getCommands().add(tempVar); UICommand tempVar2 = new UICommand("Cancel", this); //$NON-NLS-1$ tempVar2.setTitle(ConstantsManager.getInstance().getConstants().cancel()); tempVar2.setIsCancel(true); model.getCommands().add(tempVar2); } ======================================================== _______________________________________________ Devel mailing list Devel(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/devel

Hi, forgot to mention, one more thing needs to be done: // in PresenterModule bindPresenterWidget(TemplateBackupPopupPresenterWidget.class, TemplateBackupPopupPresenterWidget.ViewDef.class, TemplateBackupPopupView.class); (Above binds popup PresenterWidget/View within GIN DI context.) Regards, Vojtech ----- Original Message ----- > From: "Vojtech Szocs" <vszocs(a)redhat.com&gt; > To: "ÁŠ²š Íõ" <wlbleaboy(a)126.com&gt; > Cc: devel(a)ovirt.org > Sent: Wednesday, August 13, 2014 6:00:08 PM > Subject: Re: [ovirt-devel] popup dialog > > Hi, > > in order to add new dialog, follow these steps: > > 1, create UiCommon model for the dialog, I see you already did this > (TemplateBackupModel) - however from your code I don't understand > why is there an unused "_asyncQuery" inside model constructor > > 2, modify existing list model to trigger your new dialog, I see you > also did this (second code snippet), I assume you put that code > inside TemplateListModel: > > // inside TemplateListModel#backup - this method should be private > // since UI code executes this method via associated UICommand > ... > TemplateBackupModel model = new TemplateBackupModel(); > setWindow(model); > >model.setTitle(ConstantsManager.getInstance().getConstants().templateBack >upTitle()); > model.setHelpTag(HelpTag.template_backup); > model.setHashName("template_backup");//$NON-NLS-1$ > ... > > now, expose UICommand that triggers your dialog like this: > > public UICommand getTemplateBackupCommand() { > return privateTemplateBackupCommand; > } > > private void setTemplateBackupCommand(UICommand value) { > privateExportCommand = value; > } > > // inside TemplateListModel constructor > ... > setTemplateBackupCommand(new UICommand("TemplateBackup", this)); > //$NON-NLS-1$ > ... > > // inside TemplateListModel#executeCommand > ... > else if (command == getTemplateBackupCommand()) { > backup(); > } > ... > > 3, tell UI (GWTP) infra how to handle your dialog model - in this > particular case, edit TemplateModule#getTemplateListProvider: > > ... > if (lastExecutedCommand == model.getEditCommand()) { > return popupProvider.get(); > } else if (lastExecutedCommand == getModel().getExportCommand()) { > return exportPopupProvider.get(); > } else if (lastExecutedCommand == >getModel().getTemplateBackupCommand()) { > return templateBackupProvider.get(); > } else { > return super.getModelPopup(source, lastExecutedCommand, >windowModel); > } > ... > > now, add parameter to TemplateModule#getTemplateListProvider: > > @Provides > @Singleton > public MainModelProvider<VmTemplate, TemplateListModel> > getTemplateListProvider( > ... > final Provider<TemplateBackupPopupPresenterWidget> > templateBackupPopupProvider) { > ... > > 4, create PresenterWidget & View for your dialog, this is the visual > part of the dialog (dialog model just encapsulates the dialog logic) > > public class TemplateBackupPopupPresenterWidget extends > AbstractModelBoundPopupPresenterWidget<TemplateBackupModel, > TemplateBackupPopupPresenterWidget.ViewDef> { > > public interface ViewDef extends > AbstractModelBoundPopupPresenterWidget.ViewDef<TemplateBackupModel> >{ > } > > @Inject > public TemplateBackupPopupPresenterWidget(EventBus eventBus, ViewDef > view) { > super(eventBus, view); > } > > } > > --- > > public class TemplateBackupPopupView extends > AbstractModelBoundPopupView<TemplateBackupModel> implements > TemplateBackupPopupPresenterWidget.ViewDef { > > // you can get some inspiration from VmExportPopupView > > } > > 5, you are done :) > > Vojtech > > > ----- Original Message ----- > > From: "ÁŠ²š Íõ" <wlbleaboy(a)126.com&gt; > > To: devel(a)ovirt.org > > Sent: Tuesday, August 12, 2014 7:57:24 AM > > Subject: [ovirt-devel] popup dialog > > > > Hi, everyone: > > I add a button, named backup in the Template Tab, > > And the click event is ok. > > Now I want add a dialog after clicked the button, > > So, I add a model , but the dialog didn¡¯t display at all. > > > > So, I want to know is there some necessary class need > > To modify or add? > > > > The model code is like this: > > TemplateBackupModel.java > > ======================================================== > > public class TemplateBackupModel extends Model { > > > > private EntityModel privatePassword; > > > > public EntityModel getPassword() > > { > > return privatePassword; > > } > > > > public void setPassword(EntityModel value) > > { > > privatePassword = value; > > } > > > > public TemplateBackupModel(){ > > > > setPassword(new EntityModel()); > > > > AsyncQuery _asyncQuery = new AsyncQuery(); > > _asyncQuery.setModel(this); > > _asyncQuery.asyncCallback = new INewAsyncCallback() { > > @Override > > public void onSuccess(Object model, Object result) > > { > > > > } > > }; > > > > } > > > > @Override > > public void eventRaised(Event ev, Object sender, EventArgs args) { > > super.eventRaised(ev, sender, args); > > } > > > > public boolean validate(){ > > return true; > > } > > } > > ======================================================== > > > > And created a model in the backup button click callback like this£º > > ======================================================== > > public void backup() > > { > > > > if (getWindow() != null) > > { > > return; > > } > > > > TemplateBackupModel model = new TemplateBackupModel(); > > setWindow(model); > > model.setTitle("TemplateBackup");//$NON-NLS-1$ > > model.setHashName("TemplateBackup");//$NON-NLS-1$ > > > > > > UICommand tempVar = new UICommand("OnBackup", this); //$NON-NLS-1$ > > tempVar.setTitle(ConstantsManager.getInstance().getConstants().ok()); > > tempVar.setIsDefault(true); > > model.getCommands().add(tempVar); > > UICommand tempVar2 = new UICommand("Cancel", this); //$NON-NLS-1$ > > >tempVar2.setTitle(ConstantsManager.getInstance().getConstants().cancel()) >; > > tempVar2.setIsCancel(true); > > model.getCommands().add(tempVar2); > > > > } > > ======================================================== > > > > _______________________________________________ > > Devel mailing list > > Devel(a)ovirt.org > > http://lists.ovirt.org/mailman/listinfo/devel > _______________________________________________ > Devel mailing list > Devel(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/devel

----- Original Message ----- > From: "Leaboy" <wlbleaboy(a)126.com&gt; > To: "Vojtech Szocs" <vszocs(a)redhat.com&gt; > Cc: devel(a)ovirt.org > Sent: Thursday, August 14, 2014 6:19:17 AM > Subject: Re: [ovirt-devel] popup dialog > > Hi,Vojtech Szocs: > Thanks for your help, I have let it work, > > The Error I got just because I miss the step 3 you noted. > > Another question is how could I got the returnValue after > executeCommand , and let the returnValue display on the oher > Popup dialog. Please add this into MainTabTemplateView: ... getTable().addActionButton(new WebAdminButtonDefinition<VmTemplate>(constants.templateBackup()) { @Override protected UICommand resolveCommand() { return getMainModel().getTemplateBackupCommand(); } }); ... This adds a button under "Template" main tab. When clicked, it executes given command (getTemplateBackupCommand) on model (TemplateListModel). Model's executeCommand() ensures that backup() method is called. Inside backup() method, you call setWindow(model) which triggers an event - UI infra handles this event and uses "getModelPopup" (see TemplateModule) to resolve "window model" to GWTP PresenterWidget which is then revealed as popup. This is how dialogs work in UiCommon / UI (GWTP) infra. > how could I got the returnValue after executeCommand As I wrote above, executeCommand() just calls appropriate method (like backup) on the list model. That method has no return value (void) since it uses setWindow(model) to trigger event to notify UI infra to reveal a dialog. If you need to pass data to dialog, for example: ... TemplateBackupModel model = new TemplateBackupModel(); setWindow(model); ... set window model's title, help tag, hash name ... model.setSomeData(abc); model.doSomething(); ... In other words, after you call setWindow(model) you can modify state of window model (TemplateBackupModel) which can be reflected into UI (TemplateBackupPopupView) by use of editor widgets. As for binding window model's (TemplateBackupModel) attributes to UI (TemplateBackupPopupView) fields: // inside TemplateBackupModel private EntityModel<String> foo; public EntityModel<String> getFoo() { return foo; } public void setFoo(EntityModel<String> value) { foo = value; } // inside TemplateBackupPopupView @UiField @Path(value = "foo.entity") StringEntityModelTextBoxEditor fooEditor; Please see DataCenterPopupView.java & DataCenterPopupView.ui.xml (simple dialog view as example) for details. Regards, Vojtech > > > ÔÚ 8/14/14, 0:07£¬ "Vojtech Szocs" <vszocs(a)redhat.com&gt; ÐŽÈë: > > >Hi, > > > >forgot to mention, one more thing needs to be done: > > > > // in PresenterModule > > bindPresenterWidget(TemplateBackupPopupPresenterWidget.class, > > TemplateBackupPopupPresenterWidget.ViewDef.class, > > TemplateBackupPopupView.class); > > > >(Above binds popup PresenterWidget/View within GIN DI context.) > > > >Regards, > >Vojtech > > > > > >----- Original Message ----- > >> From: "Vojtech Szocs" <vszocs(a)redhat.com&gt; > >> To: "ÁŠ²š Íõ" <wlbleaboy(a)126.com&gt; > >> Cc: devel(a)ovirt.org > >> Sent: Wednesday, August 13, 2014 6:00:08 PM > >> Subject: Re: [ovirt-devel] popup dialog > >> > >> Hi, > >> > >> in order to add new dialog, follow these steps: > >> > >> 1, create UiCommon model for the dialog, I see you already did this > >> (TemplateBackupModel) - however from your code I don't understand > >> why is there an unused "_asyncQuery" inside model constructor > >> > >> 2, modify existing list model to trigger your new dialog, I see you > >> also did this (second code snippet), I assume you put that code > >> inside TemplateListModel: > >> > >> // inside TemplateListModel#backup - this method should be private > >> // since UI code executes this method via associated UICommand > >> ... > >> TemplateBackupModel model = new TemplateBackupModel(); > >> setWindow(model); > >> > >>>model.setTitle(ConstantsManager.getInstance().getConstants().templateBa >>>ck > >>upTitle()); > >> model.setHelpTag(HelpTag.template_backup); > >> model.setHashName("template_backup");//$NON-NLS-1$ > >> ... > >> > >> now, expose UICommand that triggers your dialog like this: > >> > >> public UICommand getTemplateBackupCommand() { > >> return privateTemplateBackupCommand; > >> } > >> > >> private void setTemplateBackupCommand(UICommand value) { > >> privateExportCommand = value; > >> } > >> > >> // inside TemplateListModel constructor > >> ... > >> setTemplateBackupCommand(new UICommand("TemplateBackup", this)); > >> //$NON-NLS-1$ > >> ... > >> > >> // inside TemplateListModel#executeCommand > >> ... > >> else if (command == getTemplateBackupCommand()) { > >> backup(); > >> } > >> ... > >> > >> 3, tell UI (GWTP) infra how to handle your dialog model - in this > >> particular case, edit TemplateModule#getTemplateListProvider: > >> > >> ... > >> if (lastExecutedCommand == model.getEditCommand()) { > >> return popupProvider.get(); > >> } else if (lastExecutedCommand == getModel().getExportCommand()) { > >> return exportPopupProvider.get(); > >> } else if (lastExecutedCommand == > >>getModel().getTemplateBackupCommand()) { > >> return templateBackupProvider.get(); > >> } else { > >> return super.getModelPopup(source, lastExecutedCommand, > >>windowModel); > >> } > >> ... > >> > >> now, add parameter to TemplateModule#getTemplateListProvider: > >> > >> @Provides > >> @Singleton > >> public MainModelProvider<VmTemplate, TemplateListModel> > >> getTemplateListProvider( > >> ... > >> final Provider<TemplateBackupPopupPresenterWidget> > >> templateBackupPopupProvider) { > >> ... > >> > >> 4, create PresenterWidget & View for your dialog, this is the visual > >> part of the dialog (dialog model just encapsulates the dialog >logic) > >> > >> public class TemplateBackupPopupPresenterWidget extends > >> AbstractModelBoundPopupPresenterWidget<TemplateBackupModel, > >> TemplateBackupPopupPresenterWidget.ViewDef> { > >> > >> public interface ViewDef extends > >> >AbstractModelBoundPopupPresenterWidget.ViewDef<TemplateBackupModel> > >>{ > >> } > >> > >> @Inject > >> public TemplateBackupPopupPresenterWidget(EventBus eventBus, >ViewDef > >> view) { > >> super(eventBus, view); > >> } > >> > >> } > >> > >> --- > >> > >> public class TemplateBackupPopupView extends > >> AbstractModelBoundPopupView<TemplateBackupModel> implements > >> TemplateBackupPopupPresenterWidget.ViewDef { > >> > >> // you can get some inspiration from VmExportPopupView > >> > >> } > >> > >> 5, you are done :) > >> > >> Vojtech > >> > >> > >> ----- Original Message ----- > >> > From: "ÁŠ²š Íõ" <wlbleaboy(a)126.com&gt; > >> > To: devel(a)ovirt.org > >> > Sent: Tuesday, August 12, 2014 7:57:24 AM > >> > Subject: [ovirt-devel] popup dialog > >> > > >> > Hi, everyone: > >> > I add a button, named backup in the Template Tab, > >> > And the click event is ok. > >> > Now I want add a dialog after clicked the button, > >> > So, I add a model , but the dialog didn¡¯t display at all. > >> > > >> > So, I want to know is there some necessary class need > >> > To modify or add? > >> > > >> > The model code is like this: > >> > TemplateBackupModel.java > >> > ======================================================== > >> > public class TemplateBackupModel extends Model { > >> > > >> > private EntityModel privatePassword; > >> > > >> > public EntityModel getPassword() > >> > { > >> > return privatePassword; > >> > } > >> > > >> > public void setPassword(EntityModel value) > >> > { > >> > privatePassword = value; > >> > } > >> > > >> > public TemplateBackupModel(){ > >> > > >> > setPassword(new EntityModel()); > >> > > >> > AsyncQuery _asyncQuery = new AsyncQuery(); > >> > _asyncQuery.setModel(this); > >> > _asyncQuery.asyncCallback = new INewAsyncCallback() { > >> > @Override > >> > public void onSuccess(Object model, Object result) > >> > { > >> > > >> > } > >> > }; > >> > > >> > } > >> > > >> > @Override > >> > public void eventRaised(Event ev, Object sender, EventArgs args) { > >> > super.eventRaised(ev, sender, args); > >> > } > >> > > >> > public boolean validate(){ > >> > return true; > >> > } > >> > } > >> > ======================================================== > >> > > >> > And created a model in the backup button click callback like this£º > >> > ======================================================== > >> > public void backup() > >> > { > >> > > >> > if (getWindow() != null) > >> > { > >> > return; > >> > } > >> > > >> > TemplateBackupModel model = new TemplateBackupModel(); > >> > setWindow(model); > >> > model.setTitle("TemplateBackup");//$NON-NLS-1$ > >> > model.setHashName("TemplateBackup");//$NON-NLS-1$ > >> > > >> > > >> > UICommand tempVar = new UICommand("OnBackup", this); //$NON-NLS-1$ > >> > >tempVar.setTitle(ConstantsManager.getInstance().getConstants().ok()); > >> > tempVar.setIsDefault(true); > >> > model.getCommands().add(tempVar); > >> > UICommand tempVar2 = new UICommand("Cancel", this); //$NON-NLS-1$ > >> > > >>>tempVar2.setTitle(ConstantsManager.getInstance().getConstants().cancel( >>>)) > >>; > >> > tempVar2.setIsCancel(true); > >> > model.getCommands().add(tempVar2); > >> > > >> > } > >> > ======================================================== > >> > > >> > _______________________________________________ > >> > Devel mailing list > >> > Devel(a)ovirt.org > >> > http://lists.ovirt.org/mailman/listinfo/devel > >> _______________________________________________ > >> Devel mailing list > >> Devel(a)ovirt.org > >> http://lists.ovirt.org/mailman/listinfo/devel > > > >

----- Original Message ----- > From: "Leaboy" <wlbleaboy(a)126.com&gt; > To: "Vojtech Szocs" <vszocs(a)redhat.com&gt; > Cc: devel(a)ovirt.org > Sent: Thursday, August 14, 2014 2:12:37 PM > Subject: Re: [ovirt-devel] popup dialog > > Hi: > you said that ,I have done, and the dialog > Can display, and I can pass a parameter from dialog > To the backend executeCommand(). > > Now the question is, after executeCommand(), > Hou could I get the return value in the frontend. > > For example, when I clicked backup button, > A dialog is display, now I type some parameters into > The dialog, click OK button, the backend executeCommand() > Do something, now, I need some value from executeCommand() > to frontend. Sorry, I missed that your question was about executing backend command (I thought you referred to Model.executeCommand) ... Backup dialog's OK button is represented by: UICommand tempVar = new UICommand("OnBackup", this); When user clicks OK button, that ^^ UICommand is executed. Model's executeCommand should route flow to some onBackup() method, I assume you already did this: // inside TemplateListModel#executeCommand ... else if ("OnBackup".equals(command.getName())) { onBackup(); } ... // inside TemplateListModel private void onBackup() { TemplateBackupModel windowModel = (TemplateBackupModel) getWindow(); // do nothing if windowModel is already doing something -or- if // windowModel validation failed (i.e. bad/missing user input) if (windowModel.getProgress() != null || !windowModel.validate()) { return; } // this replaces dialog content UI with "progress" animated image // to indicate that a call to backend is about to be initiated windowModel.startProgress(null); // on backend, assume you have TemplateBackupCommand that works // with parameter type TemplateBackupParameters TemplateBackupParameters params = new TemplateBackupParameters(); // update params according to window model params.setFoo(windowModel.getFoo().getEntity()); // this is the async callback executed when backend command // (TemplateBackupCommand in our case) has done its job IFrontendActionAsyncCallback callback = new IFrontendActionAsyncCallback() { @Override public void executed(FrontendActionAsyncResult result) { TemplateListModel listModel = (TemplateListModel) result.getState(); listModel.postOnBackup(result.getReturnValue()); } }; // call backend Frontend.getInstance().runAction( VdcActionType.TemplateBackup, params, callback, this); } // still inside TemplateListModel private void postOnBackup(VdcReturnValueBase returnValue) { // at this point, backend has replied with returnValue, // we can remove "progress" animated image in dialog getWindow().stopProgress(); // if the backend operation was successful, close the // dialog (otherwise the dialog will remain open) if (returnValue != null && returnValue.getSucceeded()) { setWindow(null); } } Regards, Vojtech > > > ÔÚ 8/14/14, 19:48£¬ "Vojtech Szocs" <vszocs(a)redhat.com&gt; ÐŽÈë: > > > > > > >----- Original Message ----- > >> From: "Leaboy" <wlbleaboy(a)126.com&gt; > >> To: "Vojtech Szocs" <vszocs(a)redhat.com&gt; > >> Cc: devel(a)ovirt.org > >> Sent: Thursday, August 14, 2014 6:19:17 AM > >> Subject: Re: [ovirt-devel] popup dialog > >> > >> Hi,Vojtech Szocs: > >> Thanks for your help, I have let it work, > >> > >> The Error I got just because I miss the step 3 you noted. > >> > >> Another question is how could I got the returnValue after > >> executeCommand , and let the returnValue display on the oher > >> Popup dialog. > > > >Please add this into MainTabTemplateView: > > > > ... > > getTable().addActionButton(new > >WebAdminButtonDefinition<VmTemplate>(constants.templateBackup()) { > > @Override > > protected UICommand resolveCommand() { > > return getMainModel().getTemplateBackupCommand(); > > } > > }); > > ... > > > >This adds a button under "Template" main tab. When clicked, it executes > >given command (getTemplateBackupCommand) on model (TemplateListModel). > > > >Model's executeCommand() ensures that backup() method is called. Inside > >backup() method, you call setWindow(model) which triggers an event - UI > >infra handles this event and uses "getModelPopup" (see TemplateModule) > >to resolve "window model" to GWTP PresenterWidget which is then >revealed > >as popup. This is how dialogs work in UiCommon / UI (GWTP) infra. > > > >> how could I got the returnValue after executeCommand > > > >As I wrote above, executeCommand() just calls appropriate method (like > >backup) on the list model. That method has no return value (void) since > >it uses setWindow(model) to trigger event to notify UI infra to reveal > >a dialog. > > > >If you need to pass data to dialog, for example: > > > > ... > > TemplateBackupModel model = new TemplateBackupModel(); > > setWindow(model); > > ... set window model's title, help tag, hash name ... > > model.setSomeData(abc); > > model.doSomething(); > > ... > > > >In other words, after you call setWindow(model) you can modify state > >of window model (TemplateBackupModel) which can be reflected into UI > >(TemplateBackupPopupView) by use of editor widgets. > > > >As for binding window model's (TemplateBackupModel) attributes to UI > >(TemplateBackupPopupView) fields: > > > > // inside TemplateBackupModel > > private EntityModel<String> foo; > > public EntityModel<String> getFoo() { > > return foo; > > } > > public void setFoo(EntityModel<String> value) { > > foo = value; > > } > > > > // inside TemplateBackupPopupView > > @UiField > > @Path(value = "foo.entity") > > StringEntityModelTextBoxEditor fooEditor; > > > >Please see DataCenterPopupView.java & DataCenterPopupView.ui.xml > >(simple dialog view as example) for details. > > > >Regards, > >Vojtech > > > >> > >> > >> ÔÚ 8/14/14, 0:07£¬ "Vojtech Szocs" <vszocs(a)redhat.com&gt; ÐŽÈë: > >> > >> >Hi, > >> > > >> >forgot to mention, one more thing needs to be done: > >> > > >> > // in PresenterModule > >> > bindPresenterWidget(TemplateBackupPopupPresenterWidget.class, > >> > TemplateBackupPopupPresenterWidget.ViewDef.class, > >> > TemplateBackupPopupView.class); > >> > > >> >(Above binds popup PresenterWidget/View within GIN DI context.) > >> > > >> >Regards, > >> >Vojtech > >> > > >> > > >> >----- Original Message ----- > >> >> From: "Vojtech Szocs" <vszocs(a)redhat.com&gt; > >> >> To: "ÁŠ²š Íõ" <wlbleaboy(a)126.com&gt; > >> >> Cc: devel(a)ovirt.org > >> >> Sent: Wednesday, August 13, 2014 6:00:08 PM > >> >> Subject: Re: [ovirt-devel] popup dialog > >> >> > >> >> Hi, > >> >> > >> >> in order to add new dialog, follow these steps: > >> >> > >> >> 1, create UiCommon model for the dialog, I see you already did >this > >> >> (TemplateBackupModel) - however from your code I don't >understand > >> >> why is there an unused "_asyncQuery" inside model constructor > >> >> > >> >> 2, modify existing list model to trigger your new dialog, I see >you > >> >> also did this (second code snippet), I assume you put that code > >> >> inside TemplateListModel: > >> >> > >> >> // inside TemplateListModel#backup - this method should be >private > >> >> // since UI code executes this method via associated UICommand > >> >> ... > >> >> TemplateBackupModel model = new TemplateBackupModel(); > >> >> setWindow(model); > >> >> > >> > >>>>>model.setTitle(ConstantsManager.getInstance().getConstants().template >>>>>Ba > >>>>ck > >> >>upTitle()); > >> >> model.setHelpTag(HelpTag.template_backup); > >> >> model.setHashName("template_backup");//$NON-NLS-1$ > >> >> ... > >> >> > >> >> now, expose UICommand that triggers your dialog like this: > >> >> > >> >> public UICommand getTemplateBackupCommand() { > >> >> return privateTemplateBackupCommand; > >> >> } > >> >> > >> >> private void setTemplateBackupCommand(UICommand value) { > >> >> privateExportCommand = value; > >> >> } > >> >> > >> >> // inside TemplateListModel constructor > >> >> ... > >> >> setTemplateBackupCommand(new UICommand("TemplateBackup", this)); > >> >> //$NON-NLS-1$ > >> >> ... > >> >> > >> >> // inside TemplateListModel#executeCommand > >> >> ... > >> >> else if (command == getTemplateBackupCommand()) { > >> >> backup(); > >> >> } > >> >> ... > >> >> > >> >> 3, tell UI (GWTP) infra how to handle your dialog model - in this > >> >> particular case, edit TemplateModule#getTemplateListProvider: > >> >> > >> >> ... > >> >> if (lastExecutedCommand == model.getEditCommand()) { > >> >> return popupProvider.get(); > >> >> } else if (lastExecutedCommand == >getModel().getExportCommand()) { > >> >> return exportPopupProvider.get(); > >> >> } else if (lastExecutedCommand == > >> >>getModel().getTemplateBackupCommand()) { > >> >> return templateBackupProvider.get(); > >> >> } else { > >> >> return super.getModelPopup(source, lastExecutedCommand, > >> >>windowModel); > >> >> } > >> >> ... > >> >> > >> >> now, add parameter to TemplateModule#getTemplateListProvider: > >> >> > >> >> @Provides > >> >> @Singleton > >> >> public MainModelProvider<VmTemplate, TemplateListModel> > >> >> getTemplateListProvider( > >> >> ... > >> >> final Provider<TemplateBackupPopupPresenterWidget> > >> >> templateBackupPopupProvider) { > >> >> ... > >> >> > >> >> 4, create PresenterWidget & View for your dialog, this is the >visual > >> >> part of the dialog (dialog model just encapsulates the dialog > >>logic) > >> >> > >> >> public class TemplateBackupPopupPresenterWidget extends > >> >> AbstractModelBoundPopupPresenterWidget<TemplateBackupModel, > >> >> TemplateBackupPopupPresenterWidget.ViewDef> { > >> >> > >> >> public interface ViewDef extends > >> >> > >>AbstractModelBoundPopupPresenterWidget.ViewDef<TemplateBackupModel> > >> >>{ > >> >> } > >> >> > >> >> @Inject > >> >> public TemplateBackupPopupPresenterWidget(EventBus eventBus, > >>ViewDef > >> >> view) { > >> >> super(eventBus, view); > >> >> } > >> >> > >> >> } > >> >> > >> >> --- > >> >> > >> >> public class TemplateBackupPopupView extends > >> >> AbstractModelBoundPopupView<TemplateBackupModel> implements > >> >> TemplateBackupPopupPresenterWidget.ViewDef { > >> >> > >> >> // you can get some inspiration from VmExportPopupView > >> >> > >> >> } > >> >> > >> >> 5, you are done :) > >> >> > >> >> Vojtech > >> >> > >> >> > >> >> ----- Original Message ----- > >> >> > From: "ÁŠ²š Íõ" <wlbleaboy(a)126.com&gt; > >> >> > To: devel(a)ovirt.org > >> >> > Sent: Tuesday, August 12, 2014 7:57:24 AM > >> >> > Subject: [ovirt-devel] popup dialog > >> >> > > >> >> > Hi, everyone: > >> >> > I add a button, named backup in the Template Tab, > >> >> > And the click event is ok. > >> >> > Now I want add a dialog after clicked the button, > >> >> > So, I add a model , but the dialog didn¡¯t display at all. > >> >> > > >> >> > So, I want to know is there some necessary class need > >> >> > To modify or add? > >> >> > > >> >> > The model code is like this: > >> >> > TemplateBackupModel.java > >> >> > ======================================================== > >> >> > public class TemplateBackupModel extends Model { > >> >> > > >> >> > private EntityModel privatePassword; > >> >> > > >> >> > public EntityModel getPassword() > >> >> > { > >> >> > return privatePassword; > >> >> > } > >> >> > > >> >> > public void setPassword(EntityModel value) > >> >> > { > >> >> > privatePassword = value; > >> >> > } > >> >> > > >> >> > public TemplateBackupModel(){ > >> >> > > >> >> > setPassword(new EntityModel()); > >> >> > > >> >> > AsyncQuery _asyncQuery = new AsyncQuery(); > >> >> > _asyncQuery.setModel(this); > >> >> > _asyncQuery.asyncCallback = new INewAsyncCallback() { > >> >> > @Override > >> >> > public void onSuccess(Object model, Object result) > >> >> > { > >> >> > > >> >> > } > >> >> > }; > >> >> > > >> >> > } > >> >> > > >> >> > @Override > >> >> > public void eventRaised(Event ev, Object sender, EventArgs >args) { > >> >> > super.eventRaised(ev, sender, args); > >> >> > } > >> >> > > >> >> > public boolean validate(){ > >> >> > return true; > >> >> > } > >> >> > } > >> >> > ======================================================== > >> >> > > >> >> > And created a model in the backup button click callback like >this£º > >> >> > ======================================================== > >> >> > public void backup() > >> >> > { > >> >> > > >> >> > if (getWindow() != null) > >> >> > { > >> >> > return; > >> >> > } > >> >> > > >> >> > TemplateBackupModel model = new TemplateBackupModel(); > >> >> > setWindow(model); > >> >> > model.setTitle("TemplateBackup");//$NON-NLS-1$ > >> >> > model.setHashName("TemplateBackup");//$NON-NLS-1$ > >> >> > > >> >> > > >> >> > UICommand tempVar = new UICommand("OnBackup", this); >//$NON-NLS-1$ > >> >> > > >>tempVar.setTitle(ConstantsManager.getInstance().getConstants().ok()); > >> >> > tempVar.setIsDefault(true); > >> >> > model.getCommands().add(tempVar); > >> >> > UICommand tempVar2 = new UICommand("Cancel", this); >//$NON-NLS-1$ > >> >> > > >> > >>>>>tempVar2.setTitle(ConstantsManager.getInstance().getConstants().cance >>>>>l( > >>>>)) > >> >>; > >> >> > tempVar2.setIsCancel(true); > >> >> > model.getCommands().add(tempVar2); > >> >> > > >> >> > } > >> >> > ======================================================== > >> >> > > >> >> > _______________________________________________ > >> >> > Devel mailing list > >> >> > Devel(a)ovirt.org > >> >> > http://lists.ovirt.org/mailman/listinfo/devel > >> >> _______________________________________________ > >> >> Devel mailing list > >> >> Devel(a)ovirt.org > >> >> http://lists.ovirt.org/mailman/listinfo/devel > >> > >> > >> > >> > > > >

----- Original Message ----- > From: "Leaboy" <wlbleaboy(a)126.com&gt; > To: "Vojtech Szocs" <vszocs(a)redhat.com&gt; > Cc: devel(a)ovirt.org > Sent: Friday, August 15, 2014 9:31:34 AM > Subject: Re: [ovirt-devel] popup dialog > > which type does result.getReturnValue() got, public void executed(FrontendActionAsyncResult result) { ... } result.getReturnValue() returns VdcReturnValueBase result.getReturnValue().getActionReturnValue() returns the result of backend command ("action") execution For example, your backend command does this: getReturnValue().setActionReturnValue(obj); Then "obj" is what you get on frontend with: result.getReturnValue().getActionReturnValue(); > > And how could I set it in the backend. > > ÔÚ 8/14/14, 21:57£¬ "Vojtech Szocs" <vszocs(a)redhat.com&gt; ÐŽÈë: > > > > > > >----- Original Message ----- > >> From: "Leaboy" <wlbleaboy(a)126.com&gt; > >> To: "Vojtech Szocs" <vszocs(a)redhat.com&gt; > >> Cc: devel(a)ovirt.org > >> Sent: Thursday, August 14, 2014 2:12:37 PM > >> Subject: Re: [ovirt-devel] popup dialog > >> > >> Hi: > >> you said that ,I have done, and the dialog > >> Can display, and I can pass a parameter from dialog > >> To the backend executeCommand(). > >> > >> Now the question is, after executeCommand(), > >> Hou could I get the return value in the frontend. > >> > >> For example, when I clicked backup button, > >> A dialog is display, now I type some parameters into > >> The dialog, click OK button, the backend executeCommand() > >> Do something, now, I need some value from executeCommand() > >> to frontend. > > > >Sorry, I missed that your question was about executing backend > >command (I thought you referred to Model.executeCommand) ... > > > >Backup dialog's OK button is represented by: > > > > UICommand tempVar = new UICommand("OnBackup", this); > > > >When user clicks OK button, that ^^ UICommand is executed. > >Model's executeCommand should route flow to some onBackup() > >method, I assume you already did this: > > > > // inside TemplateListModel#executeCommand > > ... > > else if ("OnBackup".equals(command.getName())) { > > onBackup(); > > } > > ... > > > > // inside TemplateListModel > > private void onBackup() { > > TemplateBackupModel windowModel = (TemplateBackupModel) >getWindow(); > > > > // do nothing if windowModel is already doing something -or- if > > // windowModel validation failed (i.e. bad/missing user input) > > if (windowModel.getProgress() != null || !windowModel.validate()) { > > return; > > } > > > > // this replaces dialog content UI with "progress" animated image > > // to indicate that a call to backend is about to be initiated > > windowModel.startProgress(null); > > > > // on backend, assume you have TemplateBackupCommand that works > > // with parameter type TemplateBackupParameters > > TemplateBackupParameters params = new TemplateBackupParameters(); > > // update params according to window model > > params.setFoo(windowModel.getFoo().getEntity()); > > > > // this is the async callback executed when backend command > > // (TemplateBackupCommand in our case) has done its job > > IFrontendActionAsyncCallback callback = new > >IFrontendActionAsyncCallback() { > > @Override > > public void executed(FrontendActionAsyncResult result) { > > TemplateListModel listModel = (TemplateListModel) > >result.getState(); > > listModel.postOnBackup(result.getReturnValue()); > > } > > }; > > > > // call backend > > Frontend.getInstance().runAction( > > VdcActionType.TemplateBackup, params, callback, this); > > } > > > > // still inside TemplateListModel > > private void postOnBackup(VdcReturnValueBase returnValue) { > > // at this point, backend has replied with returnValue, > > // we can remove "progress" animated image in dialog > > getWindow().stopProgress(); > > > > // if the backend operation was successful, close the > > // dialog (otherwise the dialog will remain open) > > if (returnValue != null && returnValue.getSucceeded()) { > > setWindow(null); > > } > > } > > > >Regards, > >Vojtech > > > > > >> > >> > >> ÔÚ 8/14/14, 19:48£¬ "Vojtech Szocs" <vszocs(a)redhat.com&gt; ÐŽÈë: > >> > >> > > >> > > >> >----- Original Message ----- > >> >> From: "Leaboy" <wlbleaboy(a)126.com&gt; > >> >> To: "Vojtech Szocs" <vszocs(a)redhat.com&gt; > >> >> Cc: devel(a)ovirt.org > >> >> Sent: Thursday, August 14, 2014 6:19:17 AM > >> >> Subject: Re: [ovirt-devel] popup dialog > >> >> > >> >> Hi,Vojtech Szocs: > >> >> Thanks for your help, I have let it work, > >> >> > >> >> The Error I got just because I miss the step 3 you noted. > >> >> > >> >> Another question is how could I got the returnValue after > >> >> executeCommand , and let the returnValue display on the oher > >> >> Popup dialog. > >> > > >> >Please add this into MainTabTemplateView: > >> > > >> > ... > >> > getTable().addActionButton(new > >> >WebAdminButtonDefinition<VmTemplate>(constants.templateBackup()) { > >> > @Override > >> > protected UICommand resolveCommand() { > >> > return getMainModel().getTemplateBackupCommand(); > >> > } > >> > }); > >> > ... > >> > > >> >This adds a button under "Template" main tab. When clicked, it >executes > >> >given command (getTemplateBackupCommand) on model >(TemplateListModel). > >> > > >> >Model's executeCommand() ensures that backup() method is called. >Inside > >> >backup() method, you call setWindow(model) which triggers an event >- UI > >> >infra handles this event and uses "getModelPopup" (see >TemplateModule) > >> >to resolve "window model" to GWTP PresenterWidget which is then > >>revealed > >> >as popup. This is how dialogs work in UiCommon / UI (GWTP) infra. > >> > > >> >> how could I got the returnValue after executeCommand > >> > > >> >As I wrote above, executeCommand() just calls appropriate method >(like > >> >backup) on the list model. That method has no return value (void) >since > >> >it uses setWindow(model) to trigger event to notify UI infra to >reveal > >> >a dialog. > >> > > >> >If you need to pass data to dialog, for example: > >> > > >> > ... > >> > TemplateBackupModel model = new TemplateBackupModel(); > >> > setWindow(model); > >> > ... set window model's title, help tag, hash name ... > >> > model.setSomeData(abc); > >> > model.doSomething(); > >> > ... > >> > > >> >In other words, after you call setWindow(model) you can modify state > >> >of window model (TemplateBackupModel) which can be reflected into UI > >> >(TemplateBackupPopupView) by use of editor widgets. > >> > > >> >As for binding window model's (TemplateBackupModel) attributes to UI > >> >(TemplateBackupPopupView) fields: > >> > > >> > // inside TemplateBackupModel > >> > private EntityModel<String> foo; > >> > public EntityModel<String> getFoo() { > >> > return foo; > >> > } > >> > public void setFoo(EntityModel<String> value) { > >> > foo = value; > >> > } > >> > > >> > // inside TemplateBackupPopupView > >> > @UiField > >> > @Path(value = "foo.entity") > >> > StringEntityModelTextBoxEditor fooEditor; > >> > > >> >Please see DataCenterPopupView.java & DataCenterPopupView.ui.xml > >> >(simple dialog view as example) for details. > >> > > >> >Regards, > >> >Vojtech > >> > > >> >> > >> >> > >> >> ÔÚ 8/14/14, 0:07£¬ "Vojtech Szocs" <vszocs(a)redhat.com&gt; ÐŽÈë: > >> >> > >> >> >Hi, > >> >> > > >> >> >forgot to mention, one more thing needs to be done: > >> >> > > >> >> > // in PresenterModule > >> >> > bindPresenterWidget(TemplateBackupPopupPresenterWidget.class, > >> >> > TemplateBackupPopupPresenterWidget.ViewDef.class, > >> >> > TemplateBackupPopupView.class); > >> >> > > >> >> >(Above binds popup PresenterWidget/View within GIN DI context.) > >> >> > > >> >> >Regards, > >> >> >Vojtech > >> >> > > >> >> > > >> >> >----- Original Message ----- > >> >> >> From: "Vojtech Szocs" <vszocs(a)redhat.com&gt; > >> >> >> To: "ÁŠ²š Íõ" <wlbleaboy(a)126.com&gt; > >> >> >> Cc: devel(a)ovirt.org > >> >> >> Sent: Wednesday, August 13, 2014 6:00:08 PM > >> >> >> Subject: Re: [ovirt-devel] popup dialog > >> >> >> > >> >> >> Hi, > >> >> >> > >> >> >> in order to add new dialog, follow these steps: > >> >> >> > >> >> >> 1, create UiCommon model for the dialog, I see you already did > >>this > >> >> >> (TemplateBackupModel) - however from your code I don't > >>understand > >> >> >> why is there an unused "_asyncQuery" inside model >constructor > >> >> >> > >> >> >> 2, modify existing list model to trigger your new dialog, I see > >>you > >> >> >> also did this (second code snippet), I assume you put that >code > >> >> >> inside TemplateListModel: > >> >> >> > >> >> >> // inside TemplateListModel#backup - this method should be > >>private > >> >> >> // since UI code executes this method via associated >UICommand > >> >> >> ... > >> >> >> TemplateBackupModel model = new TemplateBackupModel(); > >> >> >> setWindow(model); > >> >> >> > >> >> > >> > >>>>>>>model.setTitle(ConstantsManager.getInstance().getConstants().templa >>>>>>>te > >>>>>>Ba > >> >>>>ck > >> >> >>upTitle()); > >> >> >> model.setHelpTag(HelpTag.template_backup); > >> >> >> model.setHashName("template_backup");//$NON-NLS-1$ > >> >> >> ... > >> >> >> > >> >> >> now, expose UICommand that triggers your dialog like this: > >> >> >> > >> >> >> public UICommand getTemplateBackupCommand() { > >> >> >> return privateTemplateBackupCommand; > >> >> >> } > >> >> >> > >> >> >> private void setTemplateBackupCommand(UICommand value) { > >> >> >> privateExportCommand = value; > >> >> >> } > >> >> >> > >> >> >> // inside TemplateListModel constructor > >> >> >> ... > >> >> >> setTemplateBackupCommand(new UICommand("TemplateBackup", >this)); > >> >> >> //$NON-NLS-1$ > >> >> >> ... > >> >> >> > >> >> >> // inside TemplateListModel#executeCommand > >> >> >> ... > >> >> >> else if (command == getTemplateBackupCommand()) { > >> >> >> backup(); > >> >> >> } > >> >> >> ... > >> >> >> > >> >> >> 3, tell UI (GWTP) infra how to handle your dialog model - in >this > >> >> >> particular case, edit >TemplateModule#getTemplateListProvider: > >> >> >> > >> >> >> ... > >> >> >> if (lastExecutedCommand == model.getEditCommand()) { > >> >> >> return popupProvider.get(); > >> >> >> } else if (lastExecutedCommand == > >>getModel().getExportCommand()) { > >> >> >> return exportPopupProvider.get(); > >> >> >> } else if (lastExecutedCommand == > >> >> >>getModel().getTemplateBackupCommand()) { > >> >> >> return templateBackupProvider.get(); > >> >> >> } else { > >> >> >> return super.getModelPopup(source, lastExecutedCommand, > >> >> >>windowModel); > >> >> >> } > >> >> >> ... > >> >> >> > >> >> >> now, add parameter to >TemplateModule#getTemplateListProvider: > >> >> >> > >> >> >> @Provides > >> >> >> @Singleton > >> >> >> public MainModelProvider<VmTemplate, TemplateListModel> > >> >> >> getTemplateListProvider( > >> >> >> ... > >> >> >> final Provider<TemplateBackupPopupPresenterWidget> > >> >> >> templateBackupPopupProvider) { > >> >> >> ... > >> >> >> > >> >> >> 4, create PresenterWidget & View for your dialog, this is the > >>visual > >> >> >> part of the dialog (dialog model just encapsulates the >dialog > >> >>logic) > >> >> >> > >> >> >> public class TemplateBackupPopupPresenterWidget extends > >> >> >> AbstractModelBoundPopupPresenterWidget<TemplateBackupModel, > >> >> >> TemplateBackupPopupPresenterWidget.ViewDef> { > >> >> >> > >> >> >> public interface ViewDef extends > >> >> >> > >> >>AbstractModelBoundPopupPresenterWidget.ViewDef<TemplateBackupModel> > >> >> >>{ > >> >> >> } > >> >> >> > >> >> >> @Inject > >> >> >> public TemplateBackupPopupPresenterWidget(EventBus >eventBus, > >> >>ViewDef > >> >> >> view) { > >> >> >> super(eventBus, view); > >> >> >> } > >> >> >> > >> >> >> } > >> >> >> > >> >> >> --- > >> >> >> > >> >> >> public class TemplateBackupPopupView extends > >> >> >> AbstractModelBoundPopupView<TemplateBackupModel> implements > >> >> >> TemplateBackupPopupPresenterWidget.ViewDef { > >> >> >> > >> >> >> // you can get some inspiration from VmExportPopupView > >> >> >> > >> >> >> } > >> >> >> > >> >> >> 5, you are done :) > >> >> >> > >> >> >> Vojtech > >> >> >> > >> >> >> > >> >> >> ----- Original Message ----- > >> >> >> > From: "ÁŠ²š Íõ" <wlbleaboy(a)126.com&gt; > >> >> >> > To: devel(a)ovirt.org > >> >> >> > Sent: Tuesday, August 12, 2014 7:57:24 AM > >> >> >> > Subject: [ovirt-devel] popup dialog > >> >> >> > > >> >> >> > Hi, everyone: > >> >> >> > I add a button, named backup in the Template Tab, > >> >> >> > And the click event is ok. > >> >> >> > Now I want add a dialog after clicked the button, > >> >> >> > So, I add a model , but the dialog didn¡¯t display at all. > >> >> >> > > >> >> >> > So, I want to know is there some necessary class need > >> >> >> > To modify or add? > >> >> >> > > >> >> >> > The model code is like this: > >> >> >> > TemplateBackupModel.java > >> >> >> > ======================================================== > >> >> >> > public class TemplateBackupModel extends Model { > >> >> >> > > >> >> >> > private EntityModel privatePassword; > >> >> >> > > >> >> >> > public EntityModel getPassword() > >> >> >> > { > >> >> >> > return privatePassword; > >> >> >> > } > >> >> >> > > >> >> >> > public void setPassword(EntityModel value) > >> >> >> > { > >> >> >> > privatePassword = value; > >> >> >> > } > >> >> >> > > >> >> >> > public TemplateBackupModel(){ > >> >> >> > > >> >> >> > setPassword(new EntityModel()); > >> >> >> > > >> >> >> > AsyncQuery _asyncQuery = new AsyncQuery(); > >> >> >> > _asyncQuery.setModel(this); > >> >> >> > _asyncQuery.asyncCallback = new INewAsyncCallback() { > >> >> >> > @Override > >> >> >> > public void onSuccess(Object model, Object result) > >> >> >> > { > >> >> >> > > >> >> >> > } > >> >> >> > }; > >> >> >> > > >> >> >> > } > >> >> >> > > >> >> >> > @Override > >> >> >> > public void eventRaised(Event ev, Object sender, EventArgs > >>args) { > >> >> >> > super.eventRaised(ev, sender, args); > >> >> >> > } > >> >> >> > > >> >> >> > public boolean validate(){ > >> >> >> > return true; > >> >> >> > } > >> >> >> > } > >> >> >> > ======================================================== > >> >> >> > > >> >> >> > And created a model in the backup button click callback like > >>this£º > >> >> >> > ======================================================== > >> >> >> > public void backup() > >> >> >> > { > >> >> >> > > >> >> >> > if (getWindow() != null) > >> >> >> > { > >> >> >> > return; > >> >> >> > } > >> >> >> > > >> >> >> > TemplateBackupModel model = new TemplateBackupModel(); > >> >> >> > setWindow(model); > >> >> >> > model.setTitle("TemplateBackup");//$NON-NLS-1$ > >> >> >> > model.setHashName("TemplateBackup");//$NON-NLS-1$ > >> >> >> > > >> >> >> > > >> >> >> > UICommand tempVar = new UICommand("OnBackup", this); > >>//$NON-NLS-1$ > >> >> >> > > >> >>>tempVar.setTitle(ConstantsManager.getInstance().getConstants().ok()); > >> >> >> > tempVar.setIsDefault(true); > >> >> >> > model.getCommands().add(tempVar); > >> >> >> > UICommand tempVar2 = new UICommand("Cancel", this); > >>//$NON-NLS-1$ > >> >> >> > > >> >> > >> > >>>>>>>tempVar2.setTitle(ConstantsManager.getInstance().getConstants().can >>>>>>>ce > >>>>>>l( > >> >>>>)) > >> >> >>; > >> >> >> > tempVar2.setIsCancel(true); > >> >> >> > model.getCommands().add(tempVar2); > >> >> >> > > >> >> >> > } > >> >> >> > ======================================================== > >> >> >> > > >> >> >> > _______________________________________________ > >> >> >> > Devel mailing list > >> >> >> > Devel(a)ovirt.org > >> >> >> > http://lists.ovirt.org/mailman/listinfo/devel > >> >> >> _______________________________________________ > >> >> >> Devel mailing list > >> >> >> Devel(a)ovirt.org > >> >> >> http://lists.ovirt.org/mailman/listinfo/devel > >> >> > >> >> > >> >> > >> >> > >> > >> > >> > >> > > > >