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33
34 package com.icesoft.faces.component.panelborder;
35
36 import com.icesoft.faces.component.util.CustomComponentUtils;
37 import com.icesoft.faces.context.DOMContext;
38 import com.icesoft.faces.renderkit.dom_html_basic.DomBasicRenderer;
39 import com.icesoft.faces.renderkit.dom_html_basic.HTML;
40 import com.icesoft.faces.renderkit.dom_html_basic.PassThruAttributeRenderer;
41 import org.w3c.dom.Element  ;
42
43 import javax.faces.component.UIComponent;
44 import javax.faces.context.FacesContext;
45 import java.io.IOException ;
46 import java.util.List ;
47
48
52 public class PanelBorderRenderer extends DomBasicRenderer {
53 public static final String DEFAULT_LAYOUT = "default";
54 public static final String REVERSE_W_E = "horizontal reverse";
55 public static final String REVERSE_N_S = "vertical reverse";
56 public static final String CENTER_ONLY = "center only";
57 public static final String HIDE_N = "hide north";
58 public static final String HIDE_E = "hide east";
59 public static final String HIDE_S = "hide south";
60 public static final String HIDE_W = "hide west";
61
62
65 public boolean getRendersChildren() {
66 return true;
67 }
68
69
72 public void encodeChildren(FacesContext facesContext,
73 UIComponent uiComponent) throws IOException {
74 super.encodeChildren(facesContext, uiComponent);
75 }
76
77
80 public void encodeEnd(FacesContext facesContext, UIComponent uiComponent)
81 throws IOException {
82 validateParameters(facesContext, uiComponent, PanelBorder.class);
83
84 DOMContext domContext =
85 DOMContext.attachDOMContext(facesContext, uiComponent);
86 PanelBorder borderLayout = (PanelBorder) uiComponent;
87 List layout = borderLayout.getLayoutAsList();
88 String clientId = uiComponent.getClientId(facesContext);
89 if (!domContext.isInitialized()) {
90 Element table = domContext.createRootElement(HTML.TABLE_ELEM);
91 setRootElementId(facesContext, table, uiComponent);
92 table.setAttribute(HTML.NAME_ATTR, clientId);
93 }
94
95 Element table = (Element ) domContext.getRootNode();
96 PassThruAttributeRenderer
97 .renderAttributes(facesContext, uiComponent, null);
98 table.setAttribute(HTML.CLASS_ATTR, borderLayout.getStyleClass());
99 String style = borderLayout.getStyle();
100 if(style != null && style.length() > 0)
101 table.setAttribute(HTML.STYLE_ATTR, style);
102 else
103 table.removeAttribute(HTML.STYLE_ATTR);
104
105 DOMContext.removeChildren(table);
106
107 renderPanel(facesContext, layout, table, borderLayout, domContext);
108
109 if (borderLayout.getChildCount() > 0) {
110 throw new RuntimeException (
111 "PanelBorder must not have children, only facets allowed!");
112 }
113
114
115 domContext.stepOver();
116 domContext.streamWrite(facesContext, uiComponent);
117 }
118
119 private void renderPanel(FacesContext facesContext, List facets,
120 Element table, PanelBorder borderLayout,
121 DOMContext domContext) throws IOException {
122 String order = borderLayout.getLayout();
123 if (order.equalsIgnoreCase(REVERSE_N_S)) {
124 renderSouth(facesContext, domContext, borderLayout, facets, table);
125 renderEastWestCenter(facesContext, domContext, borderLayout, facets,
126 table);
127 renderNorth(facesContext, domContext, borderLayout, facets, table);
128
129 } else {
130 renderNorth(facesContext, domContext, borderLayout, facets, table);
131 renderEastWestCenter(facesContext, domContext, borderLayout, facets,
132 table);
133 renderSouth(facesContext, domContext, borderLayout, facets, table);
134 }
135 }
136
137 private void renderEastWestCenter(FacesContext facesContext,
138 DOMContext domContext,
139 PanelBorder borderLayout, List facets,
140 Element table) throws IOException {
141 if (borderLayout.getWest() != null ||
142 borderLayout.getCenter() != null ||
143 borderLayout.getEast() != null) {
144 Element tr = domContext.createElement(HTML.TR_ELEM);
145 table.appendChild(tr);
146 String order = borderLayout.getLayout();
147 if (order.equalsIgnoreCase(REVERSE_W_E)) {
148 renderEast(facesContext, domContext, borderLayout, facets, tr);
149 renderCenter(facesContext, domContext, borderLayout, facets,
150 tr);
151 renderWest(facesContext, domContext, borderLayout, facets, tr);
152 } else {
153 renderWest(facesContext, domContext, borderLayout, facets, tr);
154 renderCenter(facesContext, domContext, borderLayout, facets,
155 tr);
156 renderEast(facesContext, domContext, borderLayout, facets, tr);
157 }
158
159 }
160 }
161
162 private void renderWest(FacesContext facesContext, DOMContext domContext,
163 PanelBorder borderLayout, List facets, Element tr)
164 throws IOException {
165 if (facets.contains(PanelBorder.WEST_LAYOUT)) {
166 renderTableCells(facesContext, borderLayout, tr,
167 PanelBorder.WEST_LAYOUT, domContext);
168 }
169 }
170
171 private void renderCenter(FacesContext facesContext, DOMContext domContext,
172 PanelBorder borderLayout, List facets, Element tr)
173 throws IOException {
174 if (facets.contains(PanelBorder.CENTER_LAYOUT)) {
175 renderTableCells(facesContext, borderLayout, tr,
176 PanelBorder.CENTER_LAYOUT, domContext);
177 }
178 }
179
180 private void renderEast(FacesContext facesContext, DOMContext domContext,
181 PanelBorder borderLayout, List facets, Element tr)
182 throws IOException {
183 if (facets.contains(PanelBorder.EAST_LAYOUT)) {
184 renderTableCells(facesContext, borderLayout, tr,
185 PanelBorder.EAST_LAYOUT, domContext);
186 }
187 }
188
189
190 private void renderNorth(FacesContext facesContext, DOMContext domContext,
191 PanelBorder borderLayout, List facets,
192 Element table) throws IOException {
193 if ((borderLayout.getNorth() != null) &&
194 (facets.contains(PanelBorder.NORTH_LAYOUT))) {
195 Element tr = domContext.createElement(HTML.TR_ELEM);
196 table.appendChild(tr);
197 renderTableCells(facesContext, borderLayout, tr,
198 PanelBorder.NORTH_LAYOUT, domContext);
199 }
200 }
201
202 private void renderSouth(FacesContext facesContext, DOMContext domContext,
203 PanelBorder borderLayout, List facets,
204 Element table) throws IOException {
205 if ((borderLayout.getSouth() != null) &&
206 (facets.contains(PanelBorder.SOUTH_LAYOUT))) {
207 Element tr = domContext.createElement(HTML.TR_ELEM);
208 table.appendChild(tr);
209 renderTableCells(facesContext, borderLayout, tr,
210 PanelBorder.SOUTH_LAYOUT, domContext);
211 }
212 }
213
214 private Element getTD(FacesContext facesContext, PanelBorder borderLayout,
215 DOMContext domContext, Element tr)
216 throws IOException {
217 Element td = domContext.createElement(HTML.TD_ELEM);
218 tr.appendChild(td);
219 domContext.setCursorParent(td);
220 return td;
221 }
222
223 private void renderTableCells(FacesContext facesContext,
224 PanelBorder borderLayout, Element tr,
225 String facet, DOMContext domContext)
226 throws IOException {
227 UIComponent north = borderLayout.getNorth();
228 UIComponent west = borderLayout.getWest();
229 UIComponent east = borderLayout.getEast();
230 UIComponent center = borderLayout.getCenter();
231 UIComponent south = borderLayout.getSouth();
232
233 if (facet.equals(PanelBorder.NORTH_LAYOUT) && north != null) {
234 int width = 0;
237
238 if (west != null) {
239 width++;
240 }
241 if (east != null) {
242 width++;
243 }
244 if (center != null) {
245 width++;
246 }
247
248 renderTableCell(facesContext, north,
249 getTD(facesContext, borderLayout, domContext, tr),
250 (width == 0) ? 1 : width,
251 borderLayout.getNorthClass(), null, borderLayout);
252 }
253
254 if (facet.equals(PanelBorder.WEST_LAYOUT) && west != null) {
255 renderTableCell(facesContext, west,
256 getTD(facesContext, borderLayout, domContext, tr),
257 1,
258 borderLayout.getWestClass(), null, borderLayout);
259 }
260
261 if (facet.equals(PanelBorder.EAST_LAYOUT) && east != null) {
262 renderTableCell(facesContext, east,
263 getTD(facesContext, borderLayout, domContext, tr),
264 1,
265 borderLayout.getEastClass(), null, borderLayout);
266 }
267
268 if (facet.equals(PanelBorder.CENTER_LAYOUT) && center != null) {
269 renderTableCell(facesContext, center,
270 getTD(facesContext, borderLayout, domContext, tr),
271 1,
272 borderLayout.getCenterClass(), null, borderLayout);
273 }
274
275 if (facet.equals(PanelBorder.SOUTH_LAYOUT) && south != null) {
276 int width = 0;
279
280 if (west != null) {
281 width++;
282 }
283 if (east != null) {
284 width++;
285 }
286 if (center != null) {
287 width++;
288 }
289
290 renderTableCell(facesContext, south,
291 getTD(facesContext, borderLayout, domContext, tr),
292 (width == 0) ? 1 : width,
293 borderLayout.getSouthClass(), null, borderLayout);
294 }
295 }
296
297 private void renderTableCell(FacesContext facesContext,
298 UIComponent component,
299 Element td, int colspan, String styleClass,
300 String style, PanelBorder panelBorder)
301 throws IOException {
302 if (colspan > 0) {
303 td.setAttribute(HTML.COLSPAN_ATTR, Integer.toString(colspan));
304 }
305 else {
306 td.removeAttribute(HTML.COLSPAN_ATTR);
307 }
308 if (styleClass != null && styleClass.length() > 0) {
309 td.setAttribute(HTML.CLASS_ATTR, styleClass);
310 }
311 else {
312 td.removeAttribute(HTML.CLASS_ATTR);
313 }
314 if (style != null && style.length() > 0) {
315 td.setAttribute(HTML.STYLE_ATTR, style);
316 }
317 else {
318 td.removeAttribute(HTML.STYLE_ATTR);
319 }
320
321 DOMContext domContext =
322 DOMContext.getDOMContext(facesContext, panelBorder);
323 domContext.streamWrite(facesContext, panelBorder,
324 domContext.getRootNode(), td);
325 CustomComponentUtils.renderChild(facesContext, component);
326 }
327 } |
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