Examples of com.google.gwt.user.client.Command

com.google.gwt.user.client.Command
Encapsulates an action for later execution, often from a different context.
The Command interface provides a layer of separation between the code specifying some behavior and the code invoking that behavior. This separation aids in creating reusable code. For example, a {@link com.google.gwt.user.client.ui.MenuItem} can have a Commandassociated with it that it executes when the menu item is chosen by the user. Importantly, the code that constructed the Command to be executed when the menu item is invoked knows nothing about the internals of the MenuItem class and vice-versa.

The Command interface is often implemented with an anonymous inner class. For example,
```
 Command sayHello = new Command() { public void execute() { Window.alert("Hello"); } }; sayHello.execute(); 
```

      add(focusPanel);
    }


    protected void _processEnter() {
      
      DeferredCommand.addCommand(new Command() {
        public void execute() {
          final TextArea ta = new TextArea();
          String text = contents.getText();
          ta.setText(text.trim());

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  private void sortByColumn(String colName, boolean down) {
    sortFactor = down ? -1 : 1;
    sortColumn = colName;


    showProgress();
    DeferredCommand.addCommand(new Command() {
      public void execute() {
        Collections.sort(ontologyInfos, cmp);
        update();
      }
    });

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   */
  public void setOntologyInfos(final List<RegisteredOntologyInfo> ontologyInfos, LoginResult loginResult) {
    this.ontologyInfos = ontologyInfos;
    this.isAdmin = loginResult != null && loginResult.isAdministrator();
    
    DeferredCommand.addCommand(new Command() {
      public void execute() {
        Collections.sort(ontologyInfos, cmp);
        update();
      }
    });

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        MenuBar menu = new MenuBar(true);
//        menu.setStylePrimaryName("PopupMenu");
        final PopupPanel menuPopup = new PopupPanel(true);
        
        menu.addItem(new MenuItem("Sort up", new Command() {
        public void execute() {
          sortByColumn(colName, false);
          menuPopup.hide();
        }
        }));
        menu.addItem(new MenuItem("Sort down", new Command() {
        public void execute() {
          sortByColumn(colName, true);
          menuPopup.hide();
        }
        }));

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    initWidget(uiBinder.createAndBindUi(this));


    currentYear.setInnerText(Integer.toString(new Date().getYear() + 1900));


    aboutMenuItem.setCommand(new Command() {
      @Override
      public void execute() {
        GWT.runAsync(new RunAsyncCallback() {


          @Override
          public void onFailure(Throwable reason) {
            // TODO Auto-generated method stub
          }


          @Override
          public void onSuccess() {
            AboutDialog aboutDialog = new AboutDialog();
            aboutDialog.center();
            aboutDialog.show();
          }
        });
      }
    });


    // Check to see if we have an user logged in, if so, let's build logout
    // menus and stuff. Otherwise, we'll show login link.
    if (userInfo != null) {
      settingsMenuItem.setCommand(new Command() {
        @Override
        public void execute() {
          placeController.goTo(new SettingsPlace());
        }


      });
      settingsMenuItem.setVisible(true);


      logoutMenuItem.setCommand(new Command() {
        @Override
        public void execute() {
          StringBuilder forwardUrl = new StringBuilder(Window.Location
              .getPath());


          String queryString = Window.Location.getQueryString();
          if (queryString != null) {
            forwardUrl.append(queryString);
          }


          String hash = Window.Location.getHash();
          if (hash != null) {
            forwardUrl.append(hash);
          }


          Window.Location.assign("/logout.php?f="
              + URL.encodeQueryString(forwardUrl.toString()));
        }
      });
      logoutMenuItem.setVisible(true);
    } else {
      loginMenuItem.setCommand(new Command() {
        @Override
        public void execute() {
          StringBuilder forwardUrl = new StringBuilder(Window.Location
              .getPath());


          String queryString = Window.Location.getQueryString();
          if (queryString != null) {
            forwardUrl.append(queryString);
          }


          String hash = Window.Location.getHash();
          if (hash != null) {
            forwardUrl.append(hash);
          }


          Window.Location.assign("/login.php?f="
              + URL.encodeQueryString(forwardUrl.toString()));
        }
      });
      loginMenuItem.setVisible(true);
    }


    searchKeyword.getTextBox().addFocusHandler(new FocusHandler() {
      @Override
      public void onFocus(FocusEvent event) {
        HotKeysManager.deactivateHotKeys();
      }
    });


    searchKeyword.getTextBox().addBlurHandler(new BlurHandler() {
      @Override
      public void onBlur(BlurEvent event) {
        HotKeysManager.activateHotKeys();
      }
    });


    HotKeysManager.registerHotKey('?', new Command() {


      @Override
      public void execute() {
        // TODO decide how we do the hot keys display popup.
      }

View Full Code Here

                                            @Override
                                            public String asString() {
                                                    return cell;
                                            }
                                    };
                                    friendList.addItem(friendCell, new Command() {
                                            @Override
                                            public void execute() {
                                                AsyncCallback<MatchInfo> callback = new AsyncCallback<MatchInfo>(){
                                                      @Override
                                                      public void onFailure(Throwable caught) {
                                                      }
                                                      @Override
                                                      public void onSuccess(MatchInfo result) {   //load the game from the server
                                                            presenter.loadGame(result.toString());
                                                      }  
                                                                      
                                               };
                                               opponentId = userTurnList.get(tmp).getId();
                                               loginService.LoadMatchByOpponentInDropdown(fbUid, opponentId, callback);
                                               
                                       }
                                   });
                               }
                                
                                for (int i = 0; i < opponentTurnList.size(); i++) {
                                    final String cell = "<img src = 'http://graph.facebook.com/" + opponentTurnList.get(i).getId()
                                                    + "/picture' height = '50px' width = '50px'>" + opponentTurnList.get(i).getName() + " / " 
                                                    + "["+(opponentTurnList.get(i).getRank()-2*opponentTurnList.get(i).getrd())+" , "+(opponentTurnList.get(i).getRank()+2*opponentTurnList.get(i).getrd())+"]" + " / Opponent Turn";
                                    SafeHtml friendCell = new SafeHtml() {
                                            @Override
                                            public String asString() {
                                                    return cell;
                                            }
                                    };
                                    final int tmp = i;
                                    friendList.addItem(friendCell, new Command() {
                                            @Override
                                            public void execute() {
                                                    AsyncCallback<MatchInfo> callback = new AsyncCallback<MatchInfo>(){
                                                                  @Override
                                                                  public void onFailure(Throwable caught) {
                                                                  }
                                                                  @Override
                                                                  public void onSuccess(MatchInfo result) {   //load the game from the server
                                                                    presenter.loadGame(result.toString());
                                                                  }  
                                                                          
                                                   };
                                                   opponentId = opponentTurnList.get(tmp).getId();
                                                   loginService.LoadMatchByOpponentInDropdown(fbUid, opponentId, callback);
                                                   
                                           }
                                    });
                                }
                                
                                for (int i = 0; i < noAgainstList.size(); i++) {
                                    final int tmp = i;
                                    final String cell = "<img src = 'http://graph.facebook.com/" + noAgainstList.get(i).getId()
                                                    + "/picture' height = '50px' width = '50px'>" + noAgainstList.get(i).getName() + " / "
                                                    +"["+(noAgainstList.get(i).getRank()-2*noAgainstList.get(i).getrd())+" , "+(noAgainstList.get(i).getRank()+2*noAgainstList.get(i).getrd())+"]";
                                    SafeHtml friendCell = new SafeHtml() {
                                            @Override
                                            public String asString() {
                                                    return cell;
                                            }
                                    };
                                    friendList.addItem(friendCell, new Command() {
                                            @Override
                                            public void execute() {                                            
                                                 opponentId = noAgainstList.get(tmp).getId();
                                                 presenter.startMatch(opponentId);   
                                                 presenter.sendRequest();

View Full Code Here

        map.setSize("300px", "300px");
        RootPanel.get().add(map);
        InfoWindowContent content = new InfoWindowContent("<i>Hello World!</i>");
        InfoWindow info = map.getInfoWindow();
        info.open(center, content);
        DeferredCommand.addCommand(new Command() {
          public void execute() {
            map.closeInfoWindow();
            finishTest();
          }
        });

View Full Code Here

    return getFormat().parse(this, text, reportError);
  }


  private void preventDatePickerPopup() {
    allowDPShow = false;
    DeferredCommand.addCommand(new Command() {
      @Override
    public void execute() {
        allowDPShow = true;
      }
    });

View Full Code Here

    final Label bar = new Label("bar");
    p.add(foo, new Label("foo"));
    p.add(bar, new Label("bar"));


    delayTestFinish(2000);
    DeferredCommand.addCommand(new Command() {
      @Override
    public void execute() {
        assertEquals(128, foo.getOffsetWidth());
        assertEquals(128 - 32, foo.getOffsetHeight());


        p.selectTab(1);
        DeferredCommand.addCommand(new Command() {
          @Override
        public void execute() {
            assertEquals(128, bar.getOffsetWidth());
            assertEquals(128 - 32, bar.getOffsetHeight());
            finishTest();

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    inner.addSouth(bar, 2);
    inner.add(new Label("center"));
    p.add(inner, new Label("bar"));


    delayTestFinish(2000);
    DeferredCommand.addCommand(new Command() {
      @Override
    public void execute() {
        p.selectTab(1);
        DeferredCommand.addCommand(new Command() {
          @Override
        public void execute() {
            // Assert that the 'bar' label is of non-zero size on both axes.
            // The problem fixed in issue 4694 was causing its height to be
            // zero on IE8, because the EM units weren't being calculated

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