| /* |
| * Copyright 2010 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.gwt.uibinder.elementparsers; |
| |
| import com.google.gwt.core.ext.UnableToCompleteException; |
| import com.google.gwt.core.ext.typeinfo.JClassType; |
| import com.google.gwt.uibinder.rebind.UiBinderWriter; |
| import com.google.gwt.uibinder.rebind.XMLElement; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * A parser for Grid rows and cells. |
| */ |
| public class GridParser implements ElementParser { |
| |
| private static class CellContent { |
| private String tagName; |
| private String content; |
| |
| public CellContent(String tagName, String content) { |
| this.tagName = tagName; |
| this.content = content; |
| } |
| |
| public String getConent() { |
| return this.content; |
| } |
| |
| public String getTagName() { |
| return this.tagName; |
| } |
| } |
| |
| private static class Size { |
| private int rows; |
| private int columns; |
| |
| public Size() { |
| this.rows = 0; |
| this.columns = 0; |
| } |
| |
| public int getColumns() { |
| return this.columns; |
| } |
| |
| public int getRows() { |
| return this.rows; |
| } |
| |
| public void setColumns(int cols) { |
| this.columns = cols; |
| } |
| |
| public void setRows(int rows) { |
| this.rows = rows; |
| } |
| } |
| |
| private static final String ROW_TAG = "row"; |
| |
| private static final String CELL_TAG = "cell"; |
| |
| private static final String CUSTOMCELL_TAG = "customCell"; |
| |
| public void parse(XMLElement elem, String fieldName, JClassType type, |
| UiBinderWriter writer) throws UnableToCompleteException { |
| |
| List<List<CellContent>> matrix = new ArrayList<List<CellContent>>(); |
| |
| parseRows(elem, fieldName, writer, matrix); |
| Size size = getMatrixSize(matrix); |
| |
| if (size.getRows() > 0 || size.getColumns() > 0) { |
| writer.addStatement("%s.resize(%s, %s);", fieldName, |
| Integer.toString(size.getRows()), Integer.toString(size.getColumns())); |
| |
| for (List<CellContent> row : matrix) { |
| for (CellContent column : row) { |
| if (column.getTagName().equals(CELL_TAG)) { |
| writer.addStatement("%s.setHTML(%s, %s, \"%s\");", fieldName, |
| Integer.toString(matrix.indexOf(row)), |
| Integer.toString(row.indexOf(column)), column.getConent()); |
| } |
| if (column.getTagName().equals(CUSTOMCELL_TAG)) { |
| writer.addStatement("%s.setWidget(%s, %s, %s);", fieldName, |
| Integer.toString(matrix.indexOf(row)), |
| Integer.toString(row.indexOf(column)), column.getConent()); |
| } |
| } |
| } |
| } |
| } |
| |
| private Size getMatrixSize(List<List<CellContent>> matrix) { |
| Size size = new Size(); |
| |
| size.setRows(matrix.size()); |
| |
| int maxColumns = 0; |
| for (List<CellContent> column : matrix) { |
| maxColumns = (column.size() > maxColumns) ? column.size() : maxColumns; |
| } |
| size.setColumns(maxColumns); |
| |
| return size; |
| } |
| |
| private void parseColumns(String fieldName, UiBinderWriter writer, |
| List<List<CellContent>> matrix, XMLElement child) |
| throws UnableToCompleteException { |
| |
| String tagName; |
| for (XMLElement cell : child.consumeChildElements()) { |
| tagName = cell.getLocalName(); |
| if (!tagName.equals(CELL_TAG) && !tagName.equals(CUSTOMCELL_TAG) |
| || !cell.getPrefix().equals(child.getPrefix())) { |
| writer.die("Grid's row tag in %s may only contain %s or %s element.", |
| fieldName, CELL_TAG, CUSTOMCELL_TAG); |
| } |
| CellContent newColumn = null; |
| if (tagName.equals(CELL_TAG)) { |
| HtmlInterpreter htmlInt = HtmlInterpreter.newInterpreterForUiObject( |
| writer, fieldName); |
| String html = cell.consumeInnerHtml(htmlInt); |
| newColumn = new CellContent(tagName, html); |
| } |
| if (tagName.equals(CUSTOMCELL_TAG)) { |
| newColumn = new CellContent(tagName, |
| writer.parseElementToField(cell.consumeSingleChildElement())); |
| } |
| matrix.get(matrix.size() - 1).add(newColumn); |
| } |
| } |
| |
| private void parseRows(XMLElement elem, String fieldName, |
| UiBinderWriter writer, List<List<CellContent>> matrix) |
| throws UnableToCompleteException { |
| |
| for (XMLElement child : elem.consumeChildElements()) { |
| String tagName = child.getLocalName(); |
| if (!tagName.equals(ROW_TAG) |
| || !elem.getPrefix().equals(child.getPrefix())) { |
| writer.die( |
| "%1$s:Grid elements must contain only %1$s:%2$s children, found %3$s:%4$s", |
| elem.getPrefix(), ROW_TAG, child.getPrefix(), tagName); |
| } |
| List<CellContent> newRow = new ArrayList<CellContent>(); |
| matrix.add(newRow); |
| parseColumns(fieldName, writer, matrix, child); |
| } |
| } |
| } |