| blob | c97b58c783ae256b1257052392205d90a66420c6 |
1 //\/////\r
2 //\ overLIB Anchor Plugin\r
3 //\ This file requires overLIB 4.10 or later.\r
4 //\\r
5 //\ overLIB 4.10 - You may not remove or change this notice.\r
6 //\ Copyright Erik Bosrup 1998-2004. All rights reserved.\r
7 //\ Contributors are listed on the homepage.\r
8 //\ See http://www.bosrup.com/web/overlib/ for details.\r
9 // $Revision: 1.1 $ $Date: 2006/05/29 16:38:21 $\r
10 //\/////\r
11 //\mini\r
12 \r
13 \r
14 ////////\r
15 // PRE-INIT\r
16 // Ignore these lines, configuration is below.\r
17 ////////\r
18 if (typeof olInfo == 'undefined' || typeof olInfo.meets == 'undefined' || !olInfo.meets(4.10)) alert('overLIB 4.10 or later is required for the Anchor Plugin.');\r
19 else {\r
20 registerCommands('anchor,anchorx,anchory,noanchorwarn,anchoralign');\r
21 \r
22 \r
23 \r
24 ////////\r
25 // DEFAULT CONFIGURATION\r
26 // Settings you want everywhere are set here. All of this can also be\r
27 // changed on your html page or through an overLIB call.\r
28 ////////\r
29 if (typeof ol_anchor == 'undefined') var ol_anchor = '';\r
30 if (typeof ol_anchorx == 'undefined') var ol_anchorx = 0;\r
31 if (typeof ol_anchory == 'undefined') var ol_anchory = 0;\r
32 if (typeof ol_noanchorwarn == 'undefined') var ol_noanchorwarn = 1;\r
33 if (typeof ol_anchoralign == 'undefined') var ol_anchoralign = 'UL';\r
34 \r
35 ////////\r
36 // END OF CONFIGURATION\r
37 // Don't change anything below this line, all configuration is above.\r
38 ////////\r
39 \r
40 \r
41 \r
42 \r
43 \r
44 ////////\r
45 // INIT\r
46 ////////\r
47 // Runtime variables init. Don't change for config!\r
48 var o3_anchor = "";\r
49 var o3_anchorx = 0;\r
50 var o3_anchory = 0;\r
51 var o3_noanchorwarn = 1;\r
52 var o3_anchoralign = 'UL';\r
53 var mrkObj, rmrkPosition; //reference mark object, reference mark position, an array;\r
54 \r
55 \r
56 ////////\r
57 // PLUGIN FUNCTIONS\r
58 ////////\r
59 function setAnchorVariables() {\r
60 o3_anchor = ol_anchor;\r
61 o3_anchorx = ol_anchorx;\r
62 o3_anchory = ol_anchory;\r
63 o3_noanchorwarn = ol_noanchorwarn;\r
64 o3_anchoralign = ol_anchoralign;\r
65 mrkObj = null; // initialize this variable\r
66 }\r
67 \r
68 // Parses Reference Mark commands\r
69 function parseAnchorExtras(pf,i,ar) {\r
70 var v, k=i;\r
71 \r
72 if (k < ar.length) {\r
73 if (ar[k] == ANCHOR) { eval(pf + "anchor = '" + escSglQuote(ar[++k]) + "'"); return k; }\r
74 if (ar[k] == ANCHORX) { eval(pf + 'anchorx = ' + ar[++k]); return k; }\r
75 if (ar[k] == ANCHORY) { eval(pf + 'anchory = ' + ar[++k]); return k; }\r
76 if (ar[k] == NOANCHORWARN) { eval(pf + 'noanchorwarn = (' + pf + 'noanchorwarn==1) ? 0 : 1'); return k; }\r
77 if (ar[k] == ANCHORALIGN) { k = opt_MULTIPLEARGS(++k, ar, (pf + 'anchoralign')); return k; }\r
78 }\r
79 \r
80 return -1;\r
81 }\r
82 \r
83 \r
84 ///////\r
85 // FUNCTION WHICH CHECKS FOR THE EXISTENCE OF A REFERENCE MARKER\r
86 ///////\r
87 function checkAnchorObject() {\r
88 var w = o3_anchor;\r
89 \r
90 if (w) {\r
91 if (!(mrkObj = getAnchorObjectRef(w))) {\r
92 if (o3_noanchorwarn) {\r
93 alert('WARNING! Reference mark "' + w + '" not found.');\r
94 return false;\r
95 } else w = '';\r
96 }\r
97 }\r
98 \r
99 return true;\r
100 }\r
101 \r
102 ///////\r
103 // EXTERNAL SUPPORT FUNCTIONS TO HANDLE ANCHOR PROPERTIES\r
104 ///////\r
105 \r
106 // Horizontal placement routine with anchors\r
107 function anchorHorizontal(browserWidth, horizontalScrollAmount, widthFix) {\r
108 var hasAnchor = (typeof o3_anchor != 'undefined' && o3_anchor);\r
109 if (!hasAnchor) return void(0);\r
110 \r
111 // set o3_relx for follow scroll if defined\r
112 if (typeof o3_followscroll != 'undefined' && o3_followscroll && o3_sticky) o3_relx = rmrkPosition[0];\r
113 \r
114 return rmrkPosition[0];\r
115 }\r
116 \r
117 // Vertical placement routine with anchors\r
118 function anchorVertical(browserHeight,verticalScrollAmount) {\r
119 var hasAnchor = (typeof o3_anchor != 'undefined' && o3_anchor); \r
120 if (!hasAnchor) return void(0);\r
121 \r
122 // set o3_rely for follow scroll if defined\r
123 if (typeof o3_followscroll != 'undefined' && o3_followscroll && o3_sticky) o3_rely = rmrkPosition[1];\r
124 \r
125 return rmrkPosition[1];\r
126 }\r
127 \r
128 // Stub function for the runHook routine\r
129 function anchorPreface() {\r
130 if (!mrkObj) return;\r
131 rmrkPosition = getAnchorLocation(mrkObj);\r
132 }\r
133 \r
134 // Get Reference Mark object \r
135 function getAnchorObjectRef(aObj) {\r
136 return getRefById(aObj, o3_frame.document) || getRefByName(aObj, o3_frame.document)\r
137 }\r
138 \r
139 // Adapted to overlib from jwin by Jason Anderson -- http://www.jwinlib.com\r
140 function getAnchorLocation(objRef){\r
141 var mkObj, of, offsets, mlyr\r
142 \r
143 mkObj = mlyr = objRef\r
144 offsets = [o3_anchorx, o3_anchory]\r
145 \r
146 if (document.layers){\r
147 if (typeof mlyr.length != 'undefined' && mlyr.length > 1) {\r
148 mkObj = mlyr[0]\r
149 offsets[0] += mlyr[0].x + mlyr[1].pageX\r
150 offsets[1] += mlyr[0].y + mlyr[1].pageY\r
151 } else {\r
152 if(mlyr.toString().indexOf('Image') != -1 || mlyr.toString().indexOf('Anchor') != -1){\r
153 offsets[0] += mlyr.x\r
154 offsets[1] += mlyr.y\r
155 } else {\r
156 offsets[0] += mlyr.pageX\r
157 offsets[1] += mlyr.pageY\r
158 }\r
159 } \r
160 } else {\r
161 offsets[0] += pageLocation(mlyr, 'Left')\r
162 offsets[1] += pageLocation(mlyr, 'Top')\r
163 }\r
164 \r
165 of = getAnchorOffsets(mkObj)\r
166 \r
167 if (typeof o3_dragimg != 'undefined' && o3_dragimg) {\r
168 olImgLeft = offsets[0];\r
169 olImgTop = offsets[1];\r
170 }\r
171 \r
172 offsets[0] += of[0] \r
173 offsets[1] += of[1]\r
174 \r
175 if (typeof o3_dragimg != 'undefined' && o3_dragimg) {\r
176 olImgRight = offsets[0]; \r
177 olImgBottom = offsets[1];\r
178 return;\r
179 }\r
180 \r
181 return offsets;\r
182 }\r
183 \r
184 // Adapted to overlib from jwin by Jason Anderson -- http://www.jwinlib.com\r
185 function getAnchorOffsets(mkObj){\r
186 var fx = fy = 0, mp, puc, mkAry, sx = sy = 0, w = o3_anchoralign \r
187 var mW = mH = pW = pH = 0\r
188 var off = [0, 0]\r
189 \r
190 mkAry = w.split(',');\r
191 \r
192 if (mkAry.length < 3) {\r
193 mp = mkAry[0].toUpperCase();\r
194 puc = (mkAry.length == 1) ? mp : mkAry[1].toUpperCase();\r
195 } else if (mkAry.length == 3) {\r
196 if (!isNaN(mkAry[0])) {\r
197 mp = mkAry.slice(0, 2);\r
198 puc = mkAry[2].toUpperCase();\r
199 } else {\r
200 mp = mkAry[0].toUpperCase();\r
201 puc = mkAry.slice(1);\r
202 }\r
203 } else {\r
204 mp = mkAry.slice(0, 2);\r
205 puc = mkAry.slice(2);\r
206 }\r
207 \r
208 var shdwPresent = typeof o3_shadow != 'undefined' && o3_shadow\r
209 \r
210 if (shdwPresent) {\r
211 sx = Math.abs(o3_shadowx);\r
212 sy = Math.abs(o3_shadowy);\r
213 }\r
214 \r
215 pW = (shdwPresent ? parseInt(o3_width) : (olNs4 ? over.clip.width : over.offsetWidth))\r
216 pH = (shdwPresent ? parseInt(o3_aboveheight) : (olNs4 ? over.clip.height : over.offsetHeight))\r
217 \r
218 if (olOp && o3_wrap) {\r
219 pW = (shdwPresent ? parseInt(o3_width) : (olNs4 ? over.clip.width : over.offsetWidth))\r
220 pH = (shdwPresent ? parseInt(o3_aboveheight) : (olNs4 ? over.clip.height : over.offsetHeight))\r
221 }\r
222 \r
223 if (!olOp && mkObj.toString().indexOf('Image') != -1){\r
224 mW = mkObj.width\r
225 mH = mkObj.height\r
226 } else if (!olOp && mkObj.toString().indexOf('Anchor') != -1) { // enforced only for NS4\r
227 mp = 'UL'\r
228 } else {\r
229 mW = (olNs4) ? mkObj.clip.width : mkObj.offsetWidth\r
230 mH = (olNs4) ? mkObj.clip.height : mkObj.offsetHeight\r
231 }\r
232 \r
233 if (!isNaN(mp) || typeof mp == 'object') {\r
234 if (typeof mp == 'object') {\r
235 fx = parseFloat(mp[0]);\r
236 fy = parseFloat(mp[1]);\r
237 } else\r
238 fx = fy = parseFloat(mp);\r
239 off = [Math.round(fx*mW), Math.round(fy*mH)];\r
240 } else {\r
241 if (mp == 'UR') off = [mW, 0]\r
242 else if (mp == 'LL') off = [0, mH]\r
243 else if (mp == 'LR') off = [mW, mH]\r
244 }\r
245 \r
246 if (typeof o3_dragimg != 'undefined' && o3_dragimg) return off;\r
247 else {\r
248 if (!isNaN(puc) || typeof puc == 'object' ) {\r
249 if (typeof puc == 'object') {\r
250 fx = parseFloat(puc[0]);\r
251 fy = parseFloat(puc[1]);\r
252 } else\r
253 fx = fy = parseFloat(puc);\r
254 off[0] -= Math.round(fx*(pW - sx));\r
255 off[1] -= Math.round(fy*(pH - sy));\r
256 } else {\r
257 if (puc == 'UR') {\r
258 off[0] -= (pW - sx); \r
259 off[1] -= sy\r
260 } else if (puc == 'LL') {\r
261 off[0] -= sx;\r
262 off[1] -= (pH - sy)\r
263 } else if (puc == 'LR') {\r
264 off[0] -= (pW-sx);\r
265 off[1] -= (pH - sy)\r
266 }\r
267 }\r
268 return off\r
269 }\r
270 }\r
271 \r
272 // Adapted to overlib from jwin by Jason Anderson -- http://www.jwinlib.com\r
273 function pageLocation(o, t){\r
274 var x = 0\r
275 \r
276 while(o.offsetParent){\r
277 x += o['offset' + t]\r
278 o = o.offsetParent\r
279 }\r
280 x += o['offset' + t]\r
281 \r
282 return x\r
283 } \r
284 \r
285 // Adapted to overlib from jwin by Jason Anderson -- http://www.jwinlib.com\r
286 function getRefById(l, d){\r
287 var r = "", j\r
288 \r
289 d = (d || document)\r
290 if (d.all) return d.all[l] \r
291 else if (d.getElementById) return d.getElementById(l)\r
292 else if (d.layers && d.layers.length > 0) {\r
293 if (d.layers[l]) return d.layers[l]\r
294 \r
295 for (j=0; j < d.layers.length; j++) {\r
296 r = getRefById(l, d.layers[j].document)\r
297 if(r) return r \r
298 }\r
299 }\r
300 \r
301 return false\r
302 }\r
303 \r
304 // Adapted to overlib from jwin by Jason Anderson -- http://www.jwinlib.com\r
305 function getRefByName(l, d) {\r
306 var r = null, j\r
307 \r
308 d = (d || document)\r
309 \r
310 if (d.images[l]) return d.images[l]\r
311 else if (d.anchors[l]) return d.anchors[l];\r
312 else if (d.layers && d.layers.length > 0) {\r
313 for (j=0; j < d.layers.length; j++) {\r
314 r = getRefByName(l, d.layers[j].document)\r
315 if (r && r.length > 0) return r\r
316 else if (r) return [r, d.layers[j]]\r
317 }\r
318 }\r
319 \r
320 return null\r
321 }\r
322 \r
323 ////////\r
324 // PLUGIN REGISTRATIONS\r
325 ////////\r
326 registerRunTimeFunction(setAnchorVariables);\r
327 registerCmdLineFunction(parseAnchorExtras);\r
328 registerPostParseFunction(checkAnchorObject);\r
329 registerHook("createPopup", anchorPreface, FAFTER);\r
330 registerHook("horizontalPlacement", anchorHorizontal, FCHAIN);\r
331 registerHook("verticalPlacement", anchorVertical, FCHAIN);\r
332 if(olInfo.meets(4.10)) registerNoParameterCommands('noanchorwarn');\r
333 }