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1 package org.joshy.html.css;
2
3 import java.util.Map  ;
4 import java.util.HashMap ;
5 import java.util.List ;
6 import java.util.ArrayList ;
7 import java.util.Iterator ;
8 import java.io.*;
9 import java.awt.Color ;
10 import org.joshy.u;
11 import org.joshy.x;
12 import org.joshy.html.*;
13
14 import com.steadystate.css.*;
15 import com.steadystate.css.parser.*;
16 import org.w3c.dom.*;
17 import org.w3c.dom.css.*;
18 import org.w3c.css.sac.*;
19
20 public class CSSParser {
21 CSSBank bank;
22 public CSSParser(CSSBank bank) {
23 this.bank = bank;
24 init_color_map();
25 }
26
27
28
29 public void parse(Reader reader) throws IOException {
30 CSSOMParser parser = new CSSOMParser();
31 InputSource is = new InputSource(reader);
32 CSSStyleSheet style = parser.parseStyleSheet(is);
33 bank.sheets.add(style);
35 this.pullOutStyles(style);
36 }
37 public void parse(String reader) throws IOException {
38 CSSOMParser parser = new CSSOMParser();
39 InputSource is = new InputSource(reader);
40 CSSStyleSheet style = parser.parseStyleSheet(is);
41 bank.sheets.add(style);
43 this.pullOutStyles(style);
44 }
45
46
47 public void parseInlineStyles(Element elem) throws IOException {
48 if(elem.getNodeName().equals("style")) {
50 if(!bank.style_nodes.contains(elem)) {
52 CSSOMParser parser = new CSSOMParser();
54 CSSStyleSheet style = parser.parseStyleSheet(new InputSource(new StringReader(x.text(elem))));
55 bank.sheets.add(style);
57 bank.style_nodes.add(elem);
60 this.pullOutStyles(style);
61 }
62 }
63 NodeList nl = elem.getChildNodes();
65 for(int i=0; i<nl.getLength(); i++) {
66 Node n = nl.item(i);
67 if(n.getNodeType() == n.ELEMENT_NODE) {
68 parseInlineStyles((Element)n);
69 }
70 }
71 }
72
73
76 public void pullOutStyles(CSSStyleSheet sheet) throws IOException {
77 CSSRuleList rules = sheet.getCssRules();
79 for(int i=0; i<rules.getLength(); i++) {
80 CSSRule rule = rules.item(i);
81 if(rule.getType() == rule.STYLE_RULE) {
82 CSSStyleRule style_rule = (CSSStyleRule) rule;
83 style_rule = normalize(style_rule);
84 JStyle style_holder = new JStyle();
85 style_holder.rule = style_rule;
86 style_holder.sheet = sheet;
87 String selector = style_rule.getSelectorText();
88 CSSOMParser parser = new CSSOMParser();
89 SelectorList list = parser.parseSelectors(new InputSource(new StringReader(selector)));
90 style_holder.selector_list = list;
91 style_holder.declaration = style_rule.getStyle();
92 bank.styles.add(style_holder);
93 }
94 }
95 }
96
97 public CSSStyleRule normalize(CSSStyleRule rule) {
98 for(int i=0; i<rule.getStyle().getLength(); i++) {
99 String prop = rule.getStyle().item(i);
100 if(prop.equals("color") ||
101 prop.equals("background-color") ||
102 prop.equals("border-color")) {
103 String value = rule.getStyle().getPropertyValue(prop);
104 rule.getStyle().setProperty(prop,getColorHex(value),null);
105 }
106 if(prop.equals("padding")) {
107 expand(prop,rule);
108 }
109 if(prop.equals("margin")) {
110 expand(prop,rule);
111 }
112 if(prop.equals("border-width")) {
113 expand("border-width",rule,"border","-width");
114 }
115 if(prop.equals("background-position")) {
116 expandBackgroundPosition(rule);
117 }
118 }
119 return rule;
120 }
121
122 public void expand(String prop, CSSStyleRule rule) {
123 expand(prop,rule,prop,"");
124 }
125
126 public void expandBackgroundPosition(CSSStyleRule rule) {
127 CSSStyleDeclaration dec = rule.getStyle();
128 CSSValue val = dec.getPropertyCSSValue("background-position");
129 if(val.getCssValueType() == val.CSS_VALUE_LIST) {
130 return;
132 }
133 if(val.getCssValueType() == val.CSS_PRIMITIVE_VALUE) {
134 String str = val.getCssText();
136 if(str.startsWith("top")) { dec.setProperty("background-position","50% 0%",null); }
137 if(str.startsWith("bottom")) { dec.setProperty("background-position","50% 100%",null); }
138 if(str.startsWith("left")) { dec.setProperty("background-position","0% 50%",null); }
139 if(str.startsWith("right")) { dec.setProperty("background-position","100% 50%",null); }
140 return;
141 }
142
143 }
144
145 public void expand(String prop, CSSStyleRule rule, String before, String after) {
146 CSSStyleDeclaration dec = rule.getStyle();
149 CSSValue val = dec.getPropertyCSSValue(prop);
150 CSSValueList list = (CSSValueList)val;
152 CSSValue top, bottom, left, right;
153 top = bottom = left = right = null;
154
155 if(val.getCssValueType() == val.CSS_VALUE_LIST) {
156 if(list.getLength() == 2) {
157 top = list.item(0);
159 bottom = list.item(0);
160 left = list.item(1);
161 right = list.item(1);
162 }
163 if(list.getLength() == 3) {
164 top = list.item(0);
166 left = list.item(1);
167 right = list.item(1);
168 bottom = list.item(2);
169 }
170 if(list.getLength() == 4) {
171 top = list.item(0);
173 right = list.item(1);
174 bottom = list.item(2);
175 left = list.item(3);
176 }
177 } else {
178 top = list;
180 bottom = list; left = list; right = list; }
184 dec.setProperty(before+"-top"+after,top.getCssText(),null);
185 dec.setProperty(before+"-bottom"+after,bottom.getCssText(),null);
186 dec.setProperty(before+"-left"+after,left.getCssText(),null);
187 dec.setProperty(before+"-right"+after,right.getCssText(),null);
188 }
189
190 public String getColorHex(String value) {
191 if(value.indexOf("rgb")>=0) {
192 return value;
193 }
194 String retval = (String )color_map.get(value.toLowerCase());
195 return retval;
196 }
197
198
199 Map color_map;
200 private void init_color_map() {
201 color_map = new HashMap ();
202 color_map.put("black","#000000");
203 color_map.put("white","#FFFFFF");
204 color_map.put("red","#FF0000");
205 color_map.put("yellow","#FFFF00");
206 color_map.put("lime","#00ff00");
207 color_map.put("aqua","#00ffff");
208 color_map.put("blue","#0000ff");
209 color_map.put("fuchsia","#ff00ff");
210 color_map.put("gray","#808080");
211 color_map.put("silver","#c0c0c0");
212 color_map.put("maroon","#800000");
213 color_map.put("olive","#808000");
214 color_map.put("green","#008000");
215 color_map.put("teal","#008080");
216 color_map.put("navy","#000080");
217 color_map.put("purple","#800080");
218 }
219
220
221
222 }
223 |
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