Examples of com.google.gwt.view.client.Range

com.google.gwt.view.client.Range
The range of interest for a single handler.
Note: This class is new and its interface subject to change.

    HasDataPresenter<String> presenter = new HasDataPresenter<String>(listView, view, 10, null);
    view.assertLoadingState(null);


    // Initialize some data.
    presenter.setRowCount(10, true);
    presenter.setVisibleRange(new Range(0, 10));
    assertEquals(new Range(0, 10), presenter.getVisibleRange());
    populatePresenter(presenter);
    presenter.flush();
    assertEquals(10, presenter.getVisibleItemCount());
    assertEquals("test 0", presenter.getVisibleItem(0));
    presenter.flush();
    view.assertReplaceAllChildrenCalled(10);
    view.assertLoadingState(LoadingState.LOADED);


    // Trim the size.
    presenter.setRowCount(8, true);
    assertEquals(8, presenter.getRowCount());
    assertTrue(presenter.isRowCountExact());
    assertEquals(new Range(0, 10), presenter.getVisibleRange());
    assertEquals(8, presenter.getVisibleItemCount());
    presenter.flush();
    view.assertReplaceAllChildrenCalled(8);
    view.assertLoadingState(LoadingState.LOADED);
  }

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  public void testSetRowData() {
    HasData<String> listView = new MockHasData<String>();
    MockView<String> view = new MockView<String>();
    HasDataPresenter<String> presenter = new HasDataPresenter<String>(listView, view, 10, null);
    presenter.setVisibleRange(new Range(5, 10));
    presenter.flush();
    view.assertReplaceAllChildrenCalled(0);
    view.assertLoadingState(LoadingState.LOADING);


    // Page range same as data range.

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  public void testSetRowValuesOutsideRange() {
    HasData<String> listView = new MockHasData<String>();
    MockView<String> view = new MockView<String>();
    HasDataPresenter<String> presenter = new HasDataPresenter<String>(listView, view, 10, null);
    presenter.setVisibleRange(new Range(5, 10));
    presenter.flush();
    view.assertReplaceAllChildrenCalled(0);
    view.assertLoadingState(LoadingState.LOADING);


    // Page range same as data range.

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    MockView<String> view = new MockView<String>();
    HasDataPresenter<String> presenter = new HasDataPresenter<String>(listView, view, 10, null);
    view.assertLoadingState(null);


    // Initialize some data.
    presenter.setVisibleRange(new Range(0, 10));
    presenter.setRowData(0, createData(0, 10));
    presenter.flush();
    view.assertReplaceAllChildrenCalled(10);
    view.assertLoadingState(LoadingState.LOADED);

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    expectedData.add(0, null);
    expectedData.add(0, null);
    expectedData.add(0, null);
    expectedData.add(0, null);
    expectedData.add(0, null);
    presenter.setVisibleRange(new Range(0, 10));
    presenter.setRowData(5, createData(5, 3));
    assertPresenterRowData(expectedData, presenter);
    presenter.flush();
    view.assertReplaceAllChildrenCalled(8);
    view.assertLoadingState(LoadingState.PARTIALLY_LOADED);

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    MockView<String> view = new MockView<String>();
    HasDataPresenter<String> presenter = new HasDataPresenter<String>(listView, view, 10, null);
    assertNull(presenter.getSelectionModel());


    // Initialize some data.
    presenter.setVisibleRange(new Range(0, 10));
    populatePresenter(presenter);
    presenter.flush();
    view.assertReplaceAllChildrenCalled(10);


    // Set the selection model.

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    HasData<String> listView = new MockHasData<String>();
    MockView<String> view = new MockView<String>();
    HasDataPresenter<String> presenter = new HasDataPresenter<String>(listView, view, 10, null);


    // Set the range the first time.
    presenter.setVisibleRange(new Range(0, 100));
    assertEquals(new Range(0, 100), presenter.getVisibleRange());
    assertEquals(0, presenter.getVisibleItemCount());
    presenter.flush();
    view.assertReplaceChildrenNotCalled();
    view.assertLoadingState(LoadingState.LOADING);


    // Set the range to the same value.
    presenter.setVisibleRange(new Range(0, 100));
    assertEquals(new Range(0, 100), presenter.getVisibleRange());
    assertEquals(0, presenter.getVisibleItemCount());
    presenter.flush();
    view.assertReplaceChildrenNotCalled();
    view.assertLoadingState(LoadingState.LOADING);


    // Set the start to a negative value.
    try {
      presenter.setVisibleRange(new Range(-1, 100));
      fail("Expected IllegalArgumentException");
    } catch (IllegalArgumentException e) {
      // Expected.
    }


    // Set the length to a negative value.
    try {
      presenter.setVisibleRange(new Range(0, -100));
      fail("Expected IllegalArgumentException");
    } catch (IllegalArgumentException e) {
      // Expected.
    }
  }

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        events.add(event.getNewRange());
      }
    });


    // Set some initial data.
    presenter.setVisibleRange(new Range(5, 10));
    presenter.setRowData(5, createData(5, 10));
    assertEquals(new Range(5, 10), presenter.getVisibleRange());
    assertEquals(10, presenter.getVisibleItemCount());
    presenter.flush();
    view.assertReplaceAllChildrenCalled(10);
    view.assertLoadingState(LoadingState.LOADED);
    assertEquals(1, events.size());


    // Set a different range.
    presenter.setVisibleRangeAndClearData(new Range(0, 10), false);
    assertEquals(new Range(0, 10), presenter.getVisibleRange());
    assertEquals(0, presenter.getVisibleItemCount());
    presenter.flush();
    view.assertReplaceAllChildrenCalled(0);
    view.assertLoadingState(LoadingState.LOADING);
    assertEquals(2, events.size());

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      }
    });


    // Set some initial data.
    presenter.setRowData(0, createData(0, 10));
    assertEquals(new Range(0, 10), presenter.getVisibleRange());
    assertEquals(10, presenter.getVisibleItemCount());
    presenter.flush();
    view.assertReplaceAllChildrenCalled(10);
    view.assertLoadingState(LoadingState.LOADED);
    assertEquals(0, events.size());


    // Set the same range.
    presenter.setVisibleRangeAndClearData(new Range(0, 10), false);
    assertEquals(new Range(0, 10), presenter.getVisibleRange());
    assertEquals(0, presenter.getVisibleItemCount());
    presenter.flush();
    view.assertReplaceAllChildrenCalled(0);
    view.assertLoadingState(LoadingState.LOADING);
    assertEquals(0, events.size());

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      }
    });


    // Set some initial data.
    presenter.setRowData(0, createData(0, 10));
    assertEquals(new Range(0, 10), presenter.getVisibleRange());
    assertEquals(10, presenter.getVisibleItemCount());
    presenter.flush();
    view.assertReplaceAllChildrenCalled(10);
    view.assertLoadingState(LoadingState.LOADED);
    assertEquals(0, events.size());


    // Set the same range.
    presenter.setVisibleRangeAndClearData(new Range(0, 10), true);
    assertEquals(new Range(0, 10), presenter.getVisibleRange());
    assertEquals(0, presenter.getVisibleItemCount());
    presenter.flush();
    view.assertReplaceAllChildrenCalled(0);
    view.assertLoadingState(LoadingState.LOADING);
    assertEquals(1, events.size());

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