root/js/search.js

// WebPAC API
//
// Documented in this code only, I'm afraid. Beware of dragons!
// Dobrica Pavlinusic dpavlin(at)rot13(dot)org 2005-11-22

/*
        load another template
*/
function load_template(template_name) {

        var old_template = $('template_name').value;

        Logger.info('load_template: '+template_name+' (old: '+old_template+')');

        if (template_name == old_template) {
                Logger.error('why reload same template?');
                return false;
        }

        $('template_name').value = template_name;
        submit_results_form( 1 );
        return false;
}

/*
        pager
*/
function load_results_page(page_nr) {

        if (parseInt(page_nr) != page_nr) {
                Logger.error("load_results_page can't parseInt "+page_nr);
                return false;
        }

        var old_page = get_page_nr();

        if (page_nr < 1) {
                Logger.error("load_results_page called with '"+page_nr+"' < 1");
                return false;
        }

        Logger.info('load_results_page: '+page_nr+' (from page: '+old_page+')');

        if (page_nr == old_page) {
                Logger.error('why reload same page?');
                return false;
        }

        submit_results_form( page_nr );

        return false;
}

function get_page_nr() {
        var page_nr = parseInt( $('page_nr').value ) || 1;
        return page_nr;
}

function reset_page_nr( nr ) {
        if (! nr) nr = 1;
        Logger.info('reset_page_nr to '+nr);
        $('page_nr').value = nr;
}

/* syntaxtic sugar */
function set_page_nr(nr) {
        return load_results_page(nr);
}

function next_page() {
        load_results_page( get_page_nr() + 1 );
        return false;
}

function prev_page() {
        load_results_page( get_page_nr() - 1 );
        return false;
}

/* toggle visibility and replace text with something else */
function toggleLinkAndElement ( link, elementID, text ) {

        if ( link.innerHTML != text ) {
                // change link text
                link.oldInnerHTML = link.innerHTML;
                link.innerHTML = text;    
        } else {
                // change it back
                link.innerHTML = link.oldInnerHTML;
        }

        Logger.debug('toggleLinkAndElement '+elementID+': '+Element.visible( elementID )+' text: '+text);

        Element.toggle( elementID );

        // why is this needed, Firefox 1.5?
        if (Element.visible( elementID )) $( elementID ).style.display = 'block';

        return false;
}


/*
        submit results form using AJAX
*/
function submit_results_form( page_nr ) {
        var results_form = $('results_form');

        if (results_form) {
                var results_div = 'results';
                if (! page_nr) {
                        page_nr = get_page_nr() || 0;
                } else {
                        $('page_nr').value = page_nr;
                        Logger.info("reset page_nr to "+page_nr);
                }

                if (page_nr > 1) {
                        results_div += '_' + page_nr;
                }

                if (! $( results_div )) {
                        Logger.error('next page div '+results_div+' doesn\'t exist');
                        results_div = 'results';
                }

                var form_params = Form.serialize( results_form );
                var url = results_form.action;
                url += '/ajax';

                Logger.debug('submit_results_form to '+url+' page:'+page_nr+' div:'+results_div+' params:'+form_params);

                Logger.info( 'loading page '+page_nr+' into '+results_div );
                show_searching( page_nr );

                new Ajax.Updater( results_div, url, {
                        parameters: form_params,
                        asynchronous: 1,
                        onComplete: function(request) {
                                Logger.info( 'page '+page_nr+' loaded into '+results_div );
                                update_results_stat( page_nr );
                                hide_searching( page_nr );
                        }
                } ) ;
                return false;
        } else {
                Logger.debug('no results_form element');
                return undef;
        }
        return false;
}

/*
        helper functions for submit_results_form()
*/

var search_active = 0;

function show_searching( page_nr ) {
        Logger.debug('show_searching '+page_nr);
        var el = 'searching';
        if (page_nr && page_nr > 1) el += '_'+page_nr;
        Element.show( el );
        search_active = 1;
        return false;
}

function hide_searching( page_nr ) {
        Logger.debug('hide_searching '+page_nr);
        var el = 'searching';
        if (page_nr && page_nr > 1) {
                Element.hide('page_'+(page_nr - 1));
        }
        Element.hide( el );
        search_active = 0;
//      new Effect.Appear('results', { duration: 0.3 });
        return false;
}

/*
        load record nr in some template
*/

function load_rec(record_uri, tmp_template_filename) {
        if (! tmp_template_filename) tmp_template_filename = template_filename;
        Logger.info('load_rec '+record_uri+' in '+tmp_template_filename);

        var results_form = $('results_form');

        if (results_form) {
                var args = '?record_uri='+record_uri+'&template_filename='+tmp_template_filename;
                Logger.debug('Ajax.Updater(results,/search/record) '+args);

                show_searching();

                new Ajax.Updater( 'results', '/search/record'+args, {
                        asynchronous: 1,
                        onComplete: function(request) {
                                hide_searching();
                        }
                } ) ;
                return false;
        } else {
                Logger.debug('no results_form element');
                return undef;
        }
        return false;
}

/* click on checkbox */

function checkbox_click() {
        if (search_active) return false;
        Logger.debug('checkbox_click');
        submit_results_form( 1 );
        return true;
}

/* toggle or select checkbox with value toggle */

function checkbox_toggle( name, val ) {
        return checkbox_magic( name, val, 0 );
}

function checkbox_single( name, val ) {
        return checkbox_magic( name, val, 1 );
}

function checkbox_magic( name, val, single ) {

        Logger.info('checkbox_magic('+name+','+val+','+single+')');

        var form = $('results_form');
        var inputs = form.getElementsByTagName('input');

        for (var i = 0; i < inputs.length; i++) {
                var input = inputs[i];
                if (input.type != 'checkbox') continue;
                if (single) {
                        input.checked = false;
                }
                if (input.name != name || input.value != val) continue;
                Logger.debug('toggle '+input.name+'='+input.value+' '+input.checked);
                input.checked = ! input.checked;
                if (! single) {
                        submit_results_form( 1 );
                        return false;
                }
        }
        submit_results_form( 1 );
        return false;
}

/* reset form fields in _reset hidden field to nothing */

function reset_form() {
        Logger.info('reset '+$F('_reset'));

        var names = new Array();
        names = $F('_reset').split(',');
        for(var i = 0; i < names.length; i++) {
                Logger.debug('reset '+i+': '+names[i]);
                $(names[i]).value='';
        }

        var t=$('search_table');
        var max_p = t.rows.length;
        for(var i = 0; i < attr_rows.length; i++) {
                var p = attr_rows[i];
                if (p != -1) {
                        if (p < max_p) {
                                Logger.debug('delete row '+p);
                                t.deleteRow( p );
                        } else {
                                Logger.error('skipping invalid delete row '+p);
                        }
                }
        }

        attr_rows = new Array();

        return false;
}

/* helper function for [% search($display, $search, $delimiter) %] */

function search_via_link(attr, val, template) {

        if (! template) template = $('template_name').value;
        Logger.info('search called from link for '+attr+'='+val+' in '+template);
        save_search(attr, val); 

        $('template_name').value = template;
        submit_results_form( 1 );

        return false;
}

/* save search and add element for it in search form */

var attr_rows = new Array();

function save_search( attr, val ) {
        Logger.info('save_search('+attr+','+val+')');

        var t=$('search_table');
        if (! t) {
                Logger.error("can't find search_table");
                return undef;
        }
        reset_form();

        var form = $('results_form');
        var inputs = form.getElementsByTagName('input');

        for (var i = 0; i < inputs.length; i++) {
                var input = inputs[i];
                if (input.name != attr) continue;
                Logger.debug('found '+name+'='+input.value);
                input.value = unescape( val );
                return false;
        }

        var t_row_nr = t.rows.length;
        var tr = t.insertRow( t_row_nr );

        if (! tr) {
                Logger.error("can't create row "+t_row_nr);
                return undef;
        }

        var row_nr = attr_rows.length;
        attr_rows[ row_nr ] = t_row_nr;

        Logger.debug('added row '+t_row_nr+' to table [offset: '+row_nr+']');

        var td = tr.insertCell(0);
        td.setAttribute('align', 'right');
        td.appendChild(
                document.createTextNode(attr)
        );

        td = tr.insertCell(1);
        td.setAttribute('align', 'left');

        var el = document.createElement('input');
        el.setAttribute('type', 'text');
        el.setAttribute('disabled', 'true');
        el.setAttribute('name', attr);
        el.setAttribute('id', '_attr_'+attr+'_id');
        el.setAttribute('size', val.length < 60 ? 60: val.length);
        el.setAttribute('value', unescape( val ) );
        td.appendChild(el);

        var el = document.createElement('input');
        el.setAttribute('type', 'button');
        el.setAttribute('value', '-');
        el.onclick = function () {
                if (attr_rows[row_nr] == -1) {
                        Logger.error('row '+row_nr+' allready deleted');
                        return false;
                }
                Logger.info('remove:' + attr + ' row:'+row_nr+' ['+attr_rows[row_nr]+']');
                t.deleteRow( attr_rows[row_nr] );

                attr_rows[row_nr] = -1;
                for (var i=(row_nr + 1); i < attr_rows.length; i++) {
                        attr_rows[i]--;
                        Logger.debug('moved '+i+' to '+attr_rows[i]);
                }
                submit_results_form();
                return false;
        }
        td.appendChild(el);

        return true;
};

/* update number of results for each database */

function update_results_stat( page_nr ) {
        var el_name = 'results_page_' + page_nr;
        var all_stats = new Array();
        var node_stat = new Array();

        var s_el = $( el_name );

        if ( s_el ) {
                all_stats = s_el.value.split(/ /);
                for (var i = 0; i < all_stats.length; i++) {
                        node_stat = all_stats[i].split(/\//);
                        var result_name = 'node_' + node_stat[0] + '_results';
                        var u_el = $( result_name );
                        if (u_el) {
                                Logger.debug("node "+node_stat[0]+" has "+node_stat[1]+" results");
                                u_el.innerHTML = node_stat[1] + '/';
                                if (node_stat[1] == 0)
                                        Element.hide( 'node_'+node_stat[0] );
                                else
                                        Element.show( 'node_'+node_stat[0] );
                        } else {
                                Logger.error("can't find " + result_name);
                        }
                }
        } else {
                Logger.error("can't find element "+el_name);
        }
}

/* function which is called using DOM.Ready when html_results div is ready */

function results_ready( page_nr ) {
        if (! page_nr) page_nr = get_page_nr();
        Logger.info("html_results ready, page "+page_nr);
        update_results_stat( page_nr );
        var el = $( 'toggle_database_list' );
        if (el) {
                el.onclick()
        } else {
                Logger.error("can't find toggle_database_list");
        }
}

1	dpavlin	283	// WebPAC API
2			//
3			// Documented in this code only, I'm afraid. Beware of dragons!
4			// Dobrica Pavlinusic dpavlin(at)rot13(dot)org 2005-11-22
5
6			/*
7			load another template
8			*/
9			function load_template(template_name) {
10
11			var old_template = $('template_name').value;
12
13			Logger.info('load_template: '+template_name+' (old: '+old_template+')');
14
15			if (template_name == old_template) {
16			Logger.error('why reload same template?');
17			return false;
18			}
19
20			$('template_name').value = template_name;
21	dpavlin	410	submit_results_form( 1 );
22	dpavlin	283	return false;
23			}
24
25			/*
26			pager
27			*/
28			function load_results_page(page_nr) {
29
30			if (parseInt(page_nr) != page_nr) {
31			Logger.error("load_results_page can't parseInt "+page_nr);
32			return false;
33			}
34
35			var old_page = get_page_nr();
36
37			if (page_nr < 1) {
38			Logger.error("load_results_page called with '"+page_nr+"' < 1");
39			return false;
40			}
41
42			Logger.info('load_results_page: '+page_nr+' (from page: '+old_page+')');
43
44			if (page_nr == old_page) {
45			Logger.error('why reload same page?');
46			return false;
47			}
48
49	dpavlin	410	submit_results_form( page_nr );
50	dpavlin	283
51			return false;
52			}
53
54			function get_page_nr() {
55			var page_nr = parseInt( $('page_nr').value ) \|\| 1;
56			return page_nr;
57			}
58
59			function reset_page_nr( nr ) {
60			if (! nr) nr = 1;
61			Logger.info('reset_page_nr to '+nr);
62	dpavlin	324	$('page_nr').value = nr;
63	dpavlin	283	}
64
65			/* syntaxtic sugar */
66			function set_page_nr(nr) {
67			return load_results_page(nr);
68			}
69
70			function next_page() {
71			load_results_page( get_page_nr() + 1 );
72			return false;
73			}
74
75			function prev_page() {
76			load_results_page( get_page_nr() - 1 );
77			return false;
78			}
79
80			/* toggle visibility and replace text with something else */
81			function toggleLinkAndElement ( link, elementID, text ) {
82
83			if ( link.innerHTML != text ) {
84			// change link text
85			link.oldInnerHTML = link.innerHTML;
86			link.innerHTML = text;
87			} else {
88			// change it back
89			link.innerHTML = link.oldInnerHTML;
90			}
91
92			Logger.debug('toggleLinkAndElement '+elementID+': '+Element.visible( elementID )+' text: '+text);
93
94			Element.toggle( elementID );
95
96			// why is this needed, Firefox 1.5?
97			if (Element.visible( elementID )) $( elementID ).style.display = 'block';
98
99			return false;
100			}
101
102
103			/*
104			submit results form using AJAX
105			*/
106	dpavlin	410	function submit_results_form( page_nr ) {
107	dpavlin	283	var results_form = $('results_form');
108
109			if (results_form) {
110	dpavlin	354	var results_div = 'results';
111	dpavlin	410	if (! page_nr) {
112			page_nr = get_page_nr() \|\| 0;
113			} else {
114			$('page_nr').value = page_nr;
115			Logger.info("reset page_nr to "+page_nr);
116			}
117
118	dpavlin	354	if (page_nr > 1) {
119			results_div += '_' + page_nr;
120			}
121	dpavlin	283
122	dpavlin	354	if (! $( results_div )) {
123			Logger.error('next page div '+results_div+' doesn\'t exist');
124			results_div = 'results';
125			}
126
127	dpavlin	429	var form_params = Form.serialize( results_form );
128	dpavlin	406	var url = results_form.action;
129			url += '/ajax';
130	dpavlin	354
131	dpavlin	408	Logger.debug('submit_results_form to '+url+' page:'+page_nr+' div:'+results_div+' params:'+form_params);
132	dpavlin	406
133	dpavlin	410	Logger.info( 'loading page '+page_nr+' into '+results_div );
134			show_searching( page_nr );
135
136	dpavlin	406	new Ajax.Updater( results_div, url, {
137	dpavlin	283	parameters: form_params,
138			asynchronous: 1,
139	dpavlin	410	onComplete: function(request) {
140			Logger.info( 'page '+page_nr+' loaded into '+results_div );
141	dpavlin	408	update_results_stat( page_nr );
142	dpavlin	354	hide_searching( page_nr );
143	dpavlin	283	}
144			} ) ;
145			return false;
146			} else {
147			Logger.debug('no results_form element');
148			return undef;
149			}
150			return false;
151			}
152
153			/*
154			helper functions for submit_results_form()
155			*/
156
157			var search_active = 0;
158
159	dpavlin	354	function show_searching( page_nr ) {
160			Logger.debug('show_searching '+page_nr);
161			var el = 'searching';
162			if (page_nr && page_nr > 1) el += '_'+page_nr;
163			Element.show( el );
164	dpavlin	283	search_active = 1;
165			return false;
166			}
167
168	dpavlin	354	function hide_searching( page_nr ) {
169			Logger.debug('hide_searching '+page_nr);
170			var el = 'searching';
171			if (page_nr && page_nr > 1) {
172			Element.hide('page_'+(page_nr - 1));
173			}
174			Element.hide( el );
175			search_active = 0;
176	dpavlin	283	// new Effect.Appear('results', { duration: 0.3 });
177			return false;
178			}
179
180			/*
181			load record nr in some template
182			*/
183
184			function load_rec(record_uri, tmp_template_filename) {
185			if (! tmp_template_filename) tmp_template_filename = template_filename;
186			Logger.info('load_rec '+record_uri+' in '+tmp_template_filename);
187
188			var results_form = $('results_form');
189
190			if (results_form) {
191			var args = '?record_uri='+record_uri+'&template_filename='+tmp_template_filename;
192			Logger.debug('Ajax.Updater(results,/search/record) '+args);
193
194	dpavlin	410	show_searching();
195
196	dpavlin	283	new Ajax.Updater( 'results', '/search/record'+args, {
197			asynchronous: 1,
198	dpavlin	410	onComplete: function(request) {
199	dpavlin	283	hide_searching();
200			}
201			} ) ;
202			return false;
203			} else {
204			Logger.debug('no results_form element');
205			return undef;
206			}
207			return false;
208			}
209
210			/* click on checkbox */
211
212			function checkbox_click() {
213			if (search_active) return false;
214	dpavlin	329	Logger.debug('checkbox_click');
215	dpavlin	410	submit_results_form( 1 );
216	dpavlin	283	return true;
217			}
218
219	dpavlin	329	/* toggle or select checkbox with value toggle */
220
221			function checkbox_toggle( name, val ) {
222			return checkbox_magic( name, val, 0 );
223			}
224
225			function checkbox_single( name, val ) {
226			return checkbox_magic( name, val, 1 );
227			}
228
229			function checkbox_magic( name, val, single ) {
230
231			Logger.info('checkbox_magic('+name+','+val+','+single+')');
232
233			var form = $('results_form');
234			var inputs = form.getElementsByTagName('input');
235
236			for (var i = 0; i < inputs.length; i++) {
237			var input = inputs[i];
238			if (input.type != 'checkbox') continue;
239			if (single) {
240			input.checked = false;
241			}
242			if (input.name != name \|\| input.value != val) continue;
243			Logger.debug('toggle '+input.name+'='+input.value+' '+input.checked);
244			input.checked = ! input.checked;
245			if (! single) {
246	dpavlin	410	submit_results_form( 1 );
247	dpavlin	329	return false;
248			}
249			}
250	dpavlin	410	submit_results_form( 1 );
251	dpavlin	329	return false;
252			}
253
254	dpavlin	325	/* reset form fields in _reset hidden field to nothing */
255
256			function reset_form() {
257			Logger.info('reset '+$F('_reset'));
258
259			var names = new Array();
260			names = $F('_reset').split(',');
261			for(var i = 0; i < names.length; i++) {
262			Logger.debug('reset '+i+': '+names[i]);
263			$(names[i]).value='';
264			}
265
266			var t=$('search_table');
267	dpavlin	327	var max_p = t.rows.length;
268	dpavlin	325	for(var i = 0; i < attr_rows.length; i++) {
269			var p = attr_rows[i];
270			if (p != -1) {
271	dpavlin	327	if (p < max_p) {
272			Logger.debug('delete row '+p);
273			t.deleteRow( p );
274			} else {
275			Logger.error('skipping invalid delete row '+p);
276			}
277	dpavlin	325	}
278			}
279
280	dpavlin	327	attr_rows = new Array();
281
282	dpavlin	325	return false;
283			}
284
285	dpavlin	322	/* helper function for [% search($display, $search, $delimiter) %] */
286
287			function search_via_link(attr, val, template) {
288
289			if (! template) template = $('template_name').value;
290			Logger.info('search called from link for '+attr+'='+val+' in '+template);
291	dpavlin	325	save_search(attr, val);
292	dpavlin	322
293	dpavlin	325	$('template_name').value = template;
294	dpavlin	410	submit_results_form( 1 );
295	dpavlin	322
296			return false;
297			}
298
299	dpavlin	324	/* save search and add element for it in search form */
300	dpavlin	322
301	dpavlin	324	var attr_rows = new Array();
302
303	dpavlin	322	function save_search( attr, val ) {
304	dpavlin	324	Logger.info('save_search('+attr+','+val+')');
305	dpavlin	322
306			var t=$('search_table');
307			if (! t) {
308			Logger.error("can't find search_table");
309	dpavlin	324	return undef;
310	dpavlin	322	}
311	dpavlin	325	reset_form();
312	dpavlin	322
313	dpavlin	328	var form = $('results_form');
314			var inputs = form.getElementsByTagName('input');
315
316			for (var i = 0; i < inputs.length; i++) {
317			var input = inputs[i];
318			if (input.name != attr) continue;
319			Logger.debug('found '+name+'='+input.value);
320			input.value = unescape( val );
321			return false;
322			}
323
324	dpavlin	324	var t_row_nr = t.rows.length;
325			var tr = t.insertRow( t_row_nr );
326	dpavlin	322
327	dpavlin	324	if (! tr) {
328			Logger.error("can't create row "+t_row_nr);
329			return undef;
330			}
331
332			var row_nr = attr_rows.length;
333			attr_rows[ row_nr ] = t_row_nr;
334
335			Logger.debug('added row '+t_row_nr+' to table [offset: '+row_nr+']');
336
337	dpavlin	322	var td = tr.insertCell(0);
338			td.setAttribute('align', 'right');
339			td.appendChild(
340			document.createTextNode(attr)
341			);
342
343			td = tr.insertCell(1);
344			td.setAttribute('align', 'left');
345
346			var el = document.createElement('input');
347			el.setAttribute('type', 'text');
348			el.setAttribute('disabled', 'true');
349			el.setAttribute('name', attr);
350			el.setAttribute('id', '_attr_'+attr+'_id');
351	dpavlin	324	el.setAttribute('size', val.length < 60 ? 60: val.length);
352			el.setAttribute('value', unescape( val ) );
353	dpavlin	322	td.appendChild(el);
354
355			var el = document.createElement('input');
356			el.setAttribute('type', 'button');
357			el.setAttribute('value', '-');
358			el.onclick = function () {
359	dpavlin	324	if (attr_rows[row_nr] == -1) {
360			Logger.error('row '+row_nr+' allready deleted');
361			return false;
362			}
363			Logger.info('remove:' + attr + ' row:'+row_nr+' ['+attr_rows[row_nr]+']');
364			t.deleteRow( attr_rows[row_nr] );
365
366			attr_rows[row_nr] = -1;
367			for (var i=(row_nr + 1); i < attr_rows.length; i++) {
368			attr_rows[i]--;
369			Logger.debug('moved '+i+' to '+attr_rows[i]);
370			}
371	dpavlin	322	submit_results_form();
372			return false;
373			}
374			td.appendChild(el);
375
376			return true;
377			};
378	dpavlin	408
379			/* update number of results for each database */
380
381			function update_results_stat( page_nr ) {
382			var el_name = 'results_page_' + page_nr;
383			var all_stats = new Array();
384			var node_stat = new Array();
385
386			var s_el = $( el_name );
387
388			if ( s_el ) {
389			all_stats = s_el.value.split(/ /);
390			for (var i = 0; i < all_stats.length; i++) {
391			node_stat = all_stats[i].split(/\//);
392			var result_name = 'node_' + node_stat[0] + '_results';
393			var u_el = $( result_name );
394			if (u_el) {
395			Logger.debug("node "+node_stat[0]+" has "+node_stat[1]+" results");
396			u_el.innerHTML = node_stat[1] + '/';
397	dpavlin	427	if (node_stat[1] == 0)
398			Element.hide( 'node_'+node_stat[0] );
399			else
400			Element.show( 'node_'+node_stat[0] );
401	dpavlin	408	} else {
402			Logger.error("can't find " + result_name);
403			}
404			}
405			} else {
406			Logger.error("can't find element "+el_name);
407			}
408			}
409
410			/* function which is called using DOM.Ready when html_results div is ready */
411
412	dpavlin	410	function results_ready( page_nr ) {
413			if (! page_nr) page_nr = get_page_nr();
414			Logger.info("html_results ready, page "+page_nr);
415			update_results_stat( page_nr );
416	dpavlin	408	var el = $( 'toggle_database_list' );
417			if (el) {
418			el.onclick()
419			} else {
420			Logger.error("can't find toggle_database_list");
421			}
422			}
423