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1
29
30 package nextapp.echo2.webcontainer.syncpeer;
31
32 import java.util.HashSet  ;
33 import java.util.Set ;
34
35 import org.w3c.dom.Document ;
36 import org.w3c.dom.DocumentFragment ;
37 import org.w3c.dom.Element ;
38 import org.w3c.dom.Node ;
39
40 import nextapp.echo2.app.Border;
41 import nextapp.echo2.app.Component;
42 import nextapp.echo2.app.Extent;
43 import nextapp.echo2.app.Grid;
44 import nextapp.echo2.app.ImageReference;
45 import nextapp.echo2.app.Insets;
46 import nextapp.echo2.app.LayoutData;
47 import nextapp.echo2.app.layout.GridLayoutData;
48 import nextapp.echo2.app.update.ServerComponentUpdate;
49 import nextapp.echo2.webcontainer.ContainerInstance;
50 import nextapp.echo2.webcontainer.DomUpdateSupport;
51 import nextapp.echo2.webcontainer.RenderContext;
52 import nextapp.echo2.webcontainer.ComponentSynchronizePeer;
53 import nextapp.echo2.webcontainer.SynchronizePeerFactory;
54 import nextapp.echo2.webcontainer.image.ImageRenderSupport;
55 import nextapp.echo2.webcontainer.propertyrender.BorderRender;
56 import nextapp.echo2.webcontainer.propertyrender.CellLayoutDataRender;
57 import nextapp.echo2.webcontainer.propertyrender.ColorRender;
58 import nextapp.echo2.webcontainer.propertyrender.ExtentRender;
59 import nextapp.echo2.webcontainer.propertyrender.FontRender;
60 import nextapp.echo2.webcontainer.propertyrender.InsetsRender;
61 import nextapp.echo2.webrender.ClientProperties;
62 import nextapp.echo2.webrender.output.CssStyle;
63 import nextapp.echo2.webrender.servermessage.DomUpdate;
64
65
71 public class GridPeer
72 implements ComponentSynchronizePeer, DomUpdateSupport, ImageRenderSupport {
73
74
77 private static final String SIZING_DOTS = ". . . . . . . . . . . . . . . . . . . . . . . . . . . . . "
78 + ". . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ";
79
80
83 public String getContainerId(Component child) {
84 return ContainerInstance.getElementId(child.getParent()) + "_td_"
85 + ContainerInstance.getElementId(child);
86 }
87
88
91 public ImageReference getImage(Component component, String imageId) {
92 return CellLayoutDataRender.getCellLayoutDataBackgroundImage(component, imageId);
95 }
96
97
106 private GridLayoutData getLayoutData(Component child) {
107 LayoutData layoutData = (LayoutData) child.getRenderProperty(Component.PROPERTY_LAYOUT_DATA);
108 if (layoutData == null) {
109 return null;
110 } else if (layoutData instanceof GridLayoutData) {
111 return (GridLayoutData) layoutData;
112 } else {
113 throw new RuntimeException ("Invalid LayoutData for Grid Child: " + layoutData.getClass().getName());
114 }
115 }
116
117
121 public void renderAdd(RenderContext rc, ServerComponentUpdate update, String targetId, Component component) {
122 Element domAddElement = DomUpdate.renderElementAdd(rc.getServerMessage());
123 DocumentFragment htmlFragment = rc.getServerMessage().getDocument().createDocumentFragment();
124 renderHtml(rc, update, htmlFragment, component);
125 DomUpdate.renderElementAddContent(rc.getServerMessage(), domAddElement, targetId, htmlFragment);
126 }
127
128
136 private void renderAddChild(RenderContext rc, ServerComponentUpdate update, Element parentElement, Component child) {
137 ComponentSynchronizePeer syncPeer = SynchronizePeerFactory.getPeerForComponent(child.getClass());
138 if (syncPeer instanceof DomUpdateSupport) {
139 ((DomUpdateSupport) syncPeer).renderHtml(rc, update, parentElement, child);
140 } else {
141 syncPeer.renderAdd(rc, update, getContainerId(child), child);
142 }
143 }
144
145
149 public void renderDispose(RenderContext rc, ServerComponentUpdate update, Component component) { }
150
151
155 public void renderHtml(RenderContext rc, ServerComponentUpdate update, Node parentNode, Component component) {
156 Document document = parentNode.getOwnerDocument();
157 Grid grid = (Grid) component;
158 Border border = (Border) grid.getRenderProperty(Grid.PROPERTY_BORDER);
159 String elementId = ContainerInstance.getElementId(grid);
160 GridProcessor gridProcessor = new GridProcessor(grid);
161 int columnCount = gridProcessor.getColumnCount();
162 int rowCount = gridProcessor.getRowCount();
163
164 Element tableElement = document.createElement("table");
165 tableElement.setAttribute("id", elementId);
166
167 CssStyle tableCssStyle = new CssStyle();
168 tableCssStyle.setAttribute("border-collapse", "collapse");
169
170 Insets gridInsets = (Insets) grid.getRenderProperty(Grid.PROPERTY_INSETS);
171 String defaultInsetsAttributeValue = gridInsets == null
172 ? "0px" : InsetsRender.renderCssAttributeValue(gridInsets);
173
174 ColorRender.renderToStyle(tableCssStyle, component);
175 FontRender.renderToStyle(tableCssStyle, component);
176 BorderRender.renderToStyle(tableCssStyle, border);
177 ExtentRender.renderToStyle(tableCssStyle, "height", (Extent) grid.getRenderProperty(Grid.PROPERTY_HEIGHT));
178
179 Extent width = (Extent) grid.getRenderProperty(Grid.PROPERTY_WIDTH);
180 boolean render100PercentWidthWorkaround = false;
181 if (rc.getContainerInstance().getClientProperties().getBoolean(
182 ClientProperties.QUIRK_IE_TABLE_PERCENT_WIDTH_SCROLLBAR_ERROR)) {
183 if (width != null && width.getUnits() == Extent.PERCENT && width.getValue() == 100) {
184 width = null;
185 render100PercentWidthWorkaround = true;
186 }
187 }
188 ExtentRender.renderToStyle(tableCssStyle, "width", width);
189
190 Extent borderSize = border == null ? null : border.getSize();
191 if (borderSize != null) {
192 if (!rc.getContainerInstance().getClientProperties().getBoolean(ClientProperties.QUIRK_CSS_BORDER_COLLAPSE_INSIDE)) {
193 tableCssStyle.setAttribute("margin", ExtentRender.renderCssAttributeValueHalf(borderSize));
194 }
195 }
196
197 tableElement.setAttribute("style", tableCssStyle.renderInline());
198
199 parentNode.appendChild(tableElement);
200
201 boolean someColumnsHaveWidths = false;
202 for (int i = 0; i < columnCount; ++i) {
203 if (gridProcessor.getColumnWidth(i) != null) {
204 someColumnsHaveWidths = true;
205 }
206 }
207 if (someColumnsHaveWidths) {
208 Element colGroupElement = document.createElement("colgroup");
209 tableElement.appendChild(colGroupElement);
210
211 for (int i = 0; i < columnCount; ++i) {
212 Element colElement = document.createElement("col");
213 Extent columnWidth = gridProcessor.getColumnWidth(i);
214 if (columnWidth != null) {
215 colElement.setAttribute("style", "width:" + ExtentRender.renderCssAttributeValue(columnWidth));
216 }
217 colGroupElement.appendChild(colElement);
218 }
219 }
220
221 Element tbodyElement = document.createElement("tbody");
222 tbodyElement.setAttribute("id", elementId + "_tbody");
223 tableElement.appendChild(tbodyElement);
224
225 Set renderedCells = new HashSet ();
226
227 for (int rowIndex = 0; rowIndex < rowCount; ++rowIndex) {
228 Element trElement = document.createElement("tr");
229 trElement.setAttribute("id", elementId + "_tr_" + rowIndex);
230 if (gridProcessor.getRowHeight(rowIndex) != null) {
231 trElement.setAttribute("style", "height:" + ExtentRender.renderCssAttributeValue(gridProcessor.getRowHeight(rowIndex)));
232 }
233 tbodyElement.appendChild(trElement);
234
235 for (int columnIndex = 0; columnIndex < columnCount; ++columnIndex) {
236 Component cell = gridProcessor.getContent(columnIndex, rowIndex);
237 if (cell == null) {
238 Element tdElement = document.createElement("td");
239 trElement.appendChild(tdElement);
240 continue;
241 }
242 if (renderedCells.contains(cell)) {
243 continue;
245 }
246 renderedCells.add(cell);
247
248 Element tdElement = document.createElement("td");
249 tdElement.setAttribute("id", elementId + "_td_" + ContainerInstance.getElementId(cell));
250 trElement.appendChild(tdElement);
251
252 int columnSpan = gridProcessor.getColumnSpan(columnIndex, rowIndex);
253 if (columnSpan > 1) {
254 tdElement.setAttribute("colspan", Integer.toString(columnSpan));
255 }
256
257 int rowSpan = gridProcessor.getRowSpan(columnIndex, rowIndex);
258 if (rowSpan > 1) {
259 tdElement.setAttribute("rowspan", Integer.toString(rowSpan));
260 }
261
262 CssStyle tdCssStyle = new CssStyle();
263 BorderRender.renderToStyle(tdCssStyle, (Border) grid.getRenderProperty(Grid.PROPERTY_BORDER));
264 CellLayoutDataRender.renderToElementAndStyle(tdElement, tdCssStyle, cell, getLayoutData(cell),
265 defaultInsetsAttributeValue);
266 CellLayoutDataRender.renderBackgroundImageToStyle(tdCssStyle, rc, this, grid, cell);
267 tdElement.setAttribute("style", tdCssStyle.renderInline());
268
269 if (rowIndex == 0 && render100PercentWidthWorkaround) {
270 Element sizingDivElement = document.createElement("div");
272 sizingDivElement.setAttribute("style", "font-size:50px;height:0px;overflow:hidden;");
273 sizingDivElement.appendChild(document.createTextNode(SIZING_DOTS));
274 tdElement.appendChild(sizingDivElement);
275 }
276
277 renderAddChild(rc, update, tdElement, cell);
278 }
279 }
280 }
281
282
286 public boolean renderUpdate(RenderContext rc, ServerComponentUpdate update, String targetId) {
287 String parentId = ContainerInstance.getElementId(update.getParent());
288 DomUpdate.renderElementRemove(rc.getServerMessage(), parentId);
289 renderAdd(rc, update, targetId, update.getParent());
290 return true;
291 }
292 }
293 |
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