Start moving the code of addStock to the view. Try not to use widget code on
the presenter.
Then create an interface and implement in the presenter:
class SomeViewHandlers {
void deleteStock(Stock code);
}
You already have the deleteStock method... so just add "implements
SomeViewHandlers" to it.
Then you need to give to the display that interface (generally in the
constructor):
display.setViewHandlers(this);
Then in the presenter lease the method as:
private void addStock(JsArray<Stock> stocks) {
display.addStock(stocks);
}
And in the view copyPaste the code of the method and change this:
removeButton.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
*viewHandlers.*deleteStock(code);
}
});
Best
2010/7/12 Fendy Tjin <[email protected]>
> Hi, I would like to elegantly code my application. I am rather
> confused as to how to code for multiple button/field.
>
> such as: multiple delete buttons, or multiple update text fields
>
> I have a working sample of it, however it is very messy and I would
> like to know if there is any other way to do it.
>
> Currently my code is as such:
>
> SomePresenter.java
>
> //.... some code
> private void addStock(JsArray<Stock> stocks) {
> FlexTable viewStockTable = new FlexTable();
> viewStockTable.removeAllRows();
> viewStockTable.setText(0, 0, "Symbol");
> viewStockTable.setText(0, 1, "Name");
> viewStockTable.setText(0, 2, "Price");
> viewStockTable.setText(0, 3, "Change");
> viewStockTable.setText(0, 4, "Remove");
> int row = 1;
>
> for (int i = 0; i < stocks.length(); i++) {
> viewStockTable.setText(row, 0, stocks.get(i).getCode());
> viewStockTable.setText(row, 1, stocks.get(i).getName());
> viewStockTable.setText(row, 2, "$ " +
> roundDouble(getPrice(stocks.get(i).getStockPrice(), 0), 2));
> viewStockTable.setText(row, 3,
> roundDouble(getPriceChange(stocks.get(i).getStockPrice(), 0), 2) + "
> %");
> Button removeButton = new Button("x");
> final String code = stocks.get(i).getCode();
>
> //--------------------Here is the problem------------------
> removeButton.addClickHandler(new ClickHandler() {
> @Override
> public void onClick(ClickEvent event) {
> deleteStock(code);
> }
> });
> //----------------------------------------------------------------
> viewStockTable.setWidget(row, 4, removeButton);
>
> row++;
> }
> display.addStock(viewStockTable);
> }
>
> SomeView.java
>
> private DecoratorPanel leftPanel = new DecoratorPanel();
> private VerticalPanel leftStack = new VerticalPanel();
> private SimplePanel viewPanel = new SimplePanel();
> private FlexTable viewStockTable = new FlexTable();
>
> public HomeView() {
> //... some code
>
> // assemble left panel
> leftStack.add(addPanel);
> viewPanel.add(viewStockTable);
> leftStack.add(viewPanel);
> leftPanel.add(leftStack);
>
> //... some code
> }
>
> //... some code
>
> public void addStock(FlexTable table) {
> viewPanel.clear();
> viewPanel.add(table);
> // -------------- Can't be done unless I put it in another container
> like the panel -------
> // viewStockPanel = table;
> //
>
> ----------------------------------------------------------------------------------------------------------
> }
>
> My structure:
> SomePresenter.java
> - addStock method - retrieve data from rpc then is creates the table
> to view and pass the table to SomeView.java
>
> I also do not like all the buttons are created in the view, if so what
> is the point of MVP while I can also create them in Model and
> Presenter alone. Since I created all the buttons in the Presenter,
> when I pass the table to View, It can't be done with (viewStockTable =
> table).
>
> I do not like this is structured, is there another way to do it?
>
> Thank you.
>
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