Ejemplo n.º 1
0
  protected void encodeFilter(FacesContext context, DataTable table, UIColumn column)
      throws IOException {
    Map<String, String> params = context.getExternalContext().getRequestParameterMap();
    ResponseWriter writer = context.getResponseWriter();
    String separator = String.valueOf(UINamingContainer.getSeparatorChar(context));

    String filterId = column.getContainerClientId(context) + separator + "filter";
    String filterStyleClass = column.getFilterStyleClass();

    String filterValue = null;
    if (table.isReset()) {
      filterValue = "";
    } else {
      if (params.containsKey(filterId)) {
        filterValue = params.get(filterId);
      } else {
        ValueExpression filterValueVE = column.getValueExpression("filterValue");
        if (filterValueVE != null) {
          filterValue = (String) filterValueVE.getValue(context.getELContext());
        } else {
          filterValue = "";
        }
      }
    }

    if (column.getValueExpression("filterOptions") == null) {
      filterStyleClass =
          filterStyleClass == null
              ? DataTable.COLUMN_INPUT_FILTER_CLASS
              : DataTable.COLUMN_INPUT_FILTER_CLASS + " " + filterStyleClass;

      writer.startElement("input", null);
      writer.writeAttribute("id", filterId, null);
      writer.writeAttribute("name", filterId, null);
      writer.writeAttribute("class", filterStyleClass, null);
      writer.writeAttribute("value", filterValue, null);
      writer.writeAttribute("autocomplete", "off", null);

      if (column.getFilterStyle() != null)
        writer.writeAttribute("style", column.getFilterStyle(), null);

      if (column.getFilterMaxLength() != Integer.MAX_VALUE)
        writer.writeAttribute("maxlength", column.getFilterMaxLength(), null);

      writer.endElement("input");
    } else {
      filterStyleClass =
          filterStyleClass == null
              ? DataTable.COLUMN_FILTER_CLASS
              : DataTable.COLUMN_FILTER_CLASS + " " + filterStyleClass;

      writer.startElement("select", null);
      writer.writeAttribute("id", filterId, null);
      writer.writeAttribute("name", filterId, null);
      writer.writeAttribute("class", filterStyleClass, null);

      SelectItem[] itemsArray = (SelectItem[]) getFilterOptions(column);

      for (SelectItem item : itemsArray) {
        Object itemValue = item.getValue();

        writer.startElement("option", null);
        writer.writeAttribute("value", item.getValue(), null);
        if (itemValue != null && String.valueOf(itemValue).equals(filterValue)) {
          writer.writeAttribute("selected", "selected", null);
        }
        writer.writeText(item.getLabel(), null);
        writer.endElement("option");
      }

      writer.endElement("select");
    }
  }
Ejemplo n.º 2
0
  protected void encodeColumnHeader(FacesContext context, DataTable table, UIColumn column)
      throws IOException {
    if (!column.isRendered()) {
      return;
    }

    ResponseWriter writer = context.getResponseWriter();
    String clientId = column.getContainerClientId(context);
    Object tableSortBy = table.getSortBy();
    Object columnSortBy = column.getSortBy();
    boolean isSortable = columnSortBy != null;
    boolean hasFilter = column.getFilterBy() != null;
    String selectionMode = column.getSelectionMode();
    String sortIcon = null;
    boolean resizable = table.isResizableColumns() && column.isResizable();

    String columnClass =
        isSortable
            ? DataTable.COLUMN_HEADER_CLASS + " " + DataTable.SORTABLE_COLUMN_CLASS
            : DataTable.COLUMN_HEADER_CLASS;
    columnClass = hasFilter ? columnClass + " " + DataTable.FILTER_COLUMN_CLASS : columnClass;
    columnClass =
        selectionMode != null ? columnClass + " " + DataTable.SELECTION_COLUMN_CLASS : columnClass;
    columnClass = resizable ? columnClass + " " + DataTable.RESIZABLE_COLUMN_CLASS : columnClass;
    columnClass =
        column.getStyleClass() != null ? columnClass + " " + column.getStyleClass() : columnClass;

    if (isSortable) {
      if (tableSortBy != null) {
        if (table.isMultiSort()) {
          List<SortMeta> sortMeta = table.getMultiSortMeta();

          if (sortMeta != null) {
            for (SortMeta meta : sortMeta) {
              sortIcon =
                  resolveDefaultSortIcon(
                      columnSortBy, meta.getColumn().getSortBy(), meta.getSortOrder().name());

              if (sortIcon != null) {
                break;
              }
            }
          }
        } else {
          sortIcon = resolveDefaultSortIcon(columnSortBy, tableSortBy, table.getSortOrder());
        }
      }

      if (sortIcon == null) sortIcon = DataTable.SORTABLE_COLUMN_ICON_CLASS;
      else columnClass += " ui-state-active";
    }

    String style = column.getStyle();
    String width = column.getWidth();
    if (width != null) {
      String unit = width.endsWith("%") ? "" : "px";
      if (style != null) style = style + ";width:" + width + unit;
      else style = "width:" + width + unit;
    }

    writer.startElement("th", null);
    writer.writeAttribute("id", clientId, null);
    writer.writeAttribute("class", columnClass, null);
    writer.writeAttribute("role", "columnheader", null);

    if (style != null) writer.writeAttribute("style", style, null);
    if (column.getRowspan() != 1) writer.writeAttribute("rowspan", column.getRowspan(), null);
    if (column.getColspan() != 1) writer.writeAttribute("colspan", column.getColspan(), null);

    if (hasFilter) {
      table.enableFiltering();

      String filterPosition = column.getFilterPosition();

      if (filterPosition.equals("bottom")) {
        encodeColumnHeaderContent(context, column, sortIcon);
        encodeFilter(context, table, column);
      } else if (filterPosition.equals("top")) {
        encodeFilter(context, table, column);
        encodeColumnHeaderContent(context, column, sortIcon);
      } else {
        throw new FacesException(
            filterPosition
                + " is an invalid option for filterPosition, valid values are 'bottom' or 'top'.");
      }
    } else {
      encodeColumnHeaderContent(context, column, sortIcon);
    }

    if (selectionMode != null && selectionMode.equalsIgnoreCase("multiple")) {
      encodeCheckbox(context, table, false, column.isDisabledSelection(), HTML.CHECKBOX_ALL_CLASS);
    }

    writer.endElement("th");
  }