17 |
top.__bfilter_obj[this.obj_count] = this; |
top.__bfilter_obj[this.obj_count] = this; |
18 |
|
|
19 |
// clear results html |
// clear results html |
20 |
this.results_html = ''; |
this.results_html = null; |
21 |
|
|
22 |
// show results after 0.2s |
// show results after 0.2s |
23 |
this.timeout = 200; |
this.timeout = 200; |
24 |
this.timeout_handle = null; |
this.timeout_handle = null; |
25 |
|
|
|
// this function is called for each result |
|
|
this.result = function (arr) { |
|
|
this.results_html += '<li><a href="'+arr[1]+'">'+ |
|
|
(this.hits % 2 == 0 ? '<span style="background: #e0e0e0;">' : '') + |
|
|
arr[0] + |
|
|
(this.hits % 2 == 0 ? '</span>' : '') + |
|
|
'</a></li>'; |
|
|
return true; |
|
|
} |
|
|
|
|
|
// this function is called when updating innerHTML with results |
|
|
this.display = function () { |
|
|
if (this.results_html) { |
|
|
return '<ul>'+this.results_html+'</ul>'; |
|
|
} else { |
|
|
return null; |
|
|
} |
|
|
} |
|
|
|
|
|
|
|
26 |
if (! arr) { |
if (! arr) { |
27 |
this.debug("ERROR: can't search empty array"); |
this.debug("ERROR: can't search empty array"); |
28 |
return; |
return; |
32 |
this.debug("index has "+this.arr.length+" parts"); |
this.debug("index has "+this.arr.length+" parts"); |
33 |
|
|
34 |
if (! arr.min_len) { |
if (! arr.min_len) { |
35 |
this.results("ERROR: index structure problem"); |
alert("ERROR: index structure problem"); |
36 |
return; |
return; |
37 |
} else { |
} else { |
38 |
this.min_len = arr.min_len; |
this.min_len = arr.min_len; |
42 |
|
|
43 |
this.show_status(); |
this.show_status(); |
44 |
|
|
45 |
|
// show alert for non-existent elements? |
46 |
|
this.show_alert = 1; |
47 |
|
|
48 |
} |
} |
49 |
|
|
50 |
BFilter.prototype.element_id = function (id,no_alert) { |
BFilter.prototype.element_id = function (id,no_alert) { |
56 |
this.id_cache[id] = el; |
this.id_cache[id] = el; |
57 |
return el; |
return el; |
58 |
} else { |
} else { |
59 |
if (! no_alert) { |
if (! no_alert && this.show_alert) { |
60 |
alert("can't find element id: "+id); |
this.show_alert = confirm("can't find element id: "+id); |
61 |
} else { |
} else { |
62 |
// don't look it up again |
// don't look it up again |
63 |
this.id_cache[id] = null; |
this.id_cache[id] = null; |
68 |
} |
} |
69 |
|
|
70 |
|
|
71 |
BFilter.prototype.show_status = function (status) { |
BFilter.prototype.show_status = function (status,no_hits) { |
72 |
var html; |
var html = ""; |
73 |
if (this.hits > 0) { |
if (! no_hits) { |
74 |
html = "shown "+this.hits+" entries"; |
if (this.hits > 0) { |
75 |
} else { |
html = "shown "+this.hits+" entries"; |
76 |
html = "no results"; |
} else { |
77 |
} |
html = "no results"; |
78 |
if (! status) { |
} |
79 |
html = "Enter "+this.min_len+" letter"+(this.min_len == 1 ? '' : 's')+" to filter entries"; |
if (! status) { |
80 |
status = ""; |
html = "Enter "+this.min_len+" letter"+(this.min_len == 1 ? '' : 's')+" to filter entries"; |
81 |
|
status = ""; |
82 |
|
} |
83 |
} |
} |
84 |
|
|
85 |
var el = this.element_id("status"); |
var el = this.element_id("status"); |
86 |
el.innerHTML = html+status+"\n"; |
el.innerHTML = html+status+"\n"; |
87 |
|
|
88 |
|
return true; |
89 |
} |
} |
90 |
|
|
91 |
BFilter.prototype.results = function (html,clean) { |
// this function is called to clean old results list |
92 |
|
BFilter.prototype.clear_results = function () { |
93 |
|
var results_div = this.element_id("results"); |
94 |
|
results_div.innerHTML = ''; |
95 |
|
this.results_html = ''; |
96 |
|
return true; |
97 |
|
} |
98 |
|
|
99 |
if (! html) { html = ""; } |
// this function is called for each result |
100 |
|
BFilter.prototype.result = function (arr) { |
101 |
|
this.results_html += '<li><a href="'+arr[1]+'">'+ |
102 |
|
(this.hits % 2 == 0 ? '<span style="background: #e0e0e0;">' : '') + |
103 |
|
arr[0] + |
104 |
|
(this.hits % 2 == 0 ? '</span>' : '') + |
105 |
|
'</a></li>'; |
106 |
|
return true; |
107 |
|
} |
108 |
|
|
109 |
// results_div.style.cursor = 'wait'; // 'auto' |
// this function is called when updating innerHTML with results |
110 |
|
BFilter.prototype.show_results = function () { |
111 |
var results_div = this.element_id("results"); |
var results_div = this.element_id("results"); |
112 |
if (clean) { |
if (this.results_html) { |
113 |
results_div.innerHTML = html; |
results_div.innerHTML = '<ul>'+this.results_html+'</ul>'; |
|
this.results_html = ''; |
|
|
} else { |
|
|
html = this.display(); |
|
|
if (html) results_div.innerHTML += html; |
|
114 |
} |
} |
115 |
|
return true; |
116 |
} |
} |
117 |
|
|
|
|
|
118 |
BFilter.prototype.debug = function (html) { |
BFilter.prototype.debug = function (html) { |
119 |
|
|
120 |
//return; |
//return; |
139 |
var low = 0; |
var low = 0; |
140 |
var high = arr.length - 1; |
var high = arr.length - 1; |
141 |
var middlearr = parseInt(arr.length / 2); |
var middlearr = parseInt(arr.length / 2); |
142 |
|
this.debug("binarySearch: "+low+"-("+middlearr+")-"+high+" for "+user_filter); |
143 |
var lastTry; |
var lastTry; |
144 |
while (low <= high) { |
while (low <= high) { |
145 |
var mid = (low + high) / 2; |
var mid = (low + high) / 2; |
146 |
var aTry = (mid < 1) ? 0 : parseInt(mid); |
var aTry = (mid < 1) ? 0 : parseInt(mid); |
147 |
|
|
148 |
var curr = arr[aTry][0].substr(0,user_filter.length).toLowerCase(); |
var curr = arr[aTry][0].substr(0,user_filter.length).toLowerCase(); |
149 |
this.debug("low="+low+" high="+high+" lastTry="+lastTry+" "+aTry+": "+curr); |
this.debug(low+"-"+high+", "+aTry+"="+curr+" last="+lastTry); |
150 |
if (curr < user_filter) { |
if (curr < user_filter) { |
151 |
low = aTry + 1; |
low = aTry + 1; |
152 |
continue; |
continue; |
183 |
|
|
184 |
BFilter.prototype.show_filter = function (user_filter) { |
BFilter.prototype.show_filter = function (user_filter) { |
185 |
|
|
186 |
|
this.show_status("Showing entries with <em>"+user_filter+"</em>\n"); |
187 |
|
|
188 |
if (this.timeout_handle) { |
if (this.timeout_handle) { |
189 |
clearTimeout(this.timeout_handle); |
clearTimeout(this.timeout_handle); |
190 |
this.timeout_handle = null; |
this.timeout_handle = null; |
191 |
this.debug("timeout cleared"); |
this.debug("timeout cleared"); |
192 |
} |
} |
193 |
|
|
194 |
this.results('',1); |
this.clear_results(); |
195 |
this.hits = 0; |
this.hits = 0; |
196 |
|
|
197 |
if (user_filter.length < this.min_len) { |
if (user_filter.length < this.min_len) { |
199 |
return; |
return; |
200 |
} |
} |
201 |
|
|
|
this.debug("filter: '"+user_filter+"'"); |
|
|
|
|
202 |
var user_filter_lc = user_filter.toLowerCase(); |
var user_filter_lc = user_filter.toLowerCase(); |
203 |
|
|
204 |
|
this.debug("filter: '"+user_filter_lc+"'"); |
205 |
|
|
206 |
var part = user_filter_lc.substr(0,this.min_len); |
var part = user_filter_lc.substr(0,this.min_len); |
207 |
|
|
213 |
} |
} |
214 |
|
|
215 |
// start anim icon |
// start anim icon |
216 |
//results("<img src=\"pie.gif\"> Please wait, filtering...\n",1); |
//<img src=\"pie.gif\"> Please wait, filtering... |
217 |
|
|
218 |
var i; |
var i; |
219 |
|
|
223 |
this.result(this.arr[part][i]); |
this.result(this.arr[part][i]); |
224 |
this.hits++; |
this.hits++; |
225 |
} |
} |
226 |
this.results(); |
this.show_results(); |
227 |
} else { |
} else { |
228 |
|
|
229 |
var from = this.binarySearch(this.arr[part], user_filter_lc); |
var from = this.binarySearch(this.arr[part], user_filter_lc); |
241 |
this.hits++; |
this.hits++; |
242 |
} |
} |
243 |
|
|
244 |
this.results(); |
this.show_results(); |
245 |
} |
} |
246 |
|
|
247 |
} |
} |