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();
        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;
        }

        $('page_nr').value = page_nr;
        submit_results_form();

        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() {
        var results_form = $('results_form');

        if (results_form) {
                var form_params = Form.serialize( results_form );

                var results_div = 'results';
                var page_nr = get_page_nr() || 0;
                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 i_nr = 0;

                var t = 'searching_'+page_nr;
                if ( $(t) ) {
                        i_nr = page_nr;
                        Logger.debug('indicator div '+t+' found, using indicator nr: '+i_nr);
                } else {
                        Logger.debug('can\'t find indicator div '+t);
                }

                var url = results_form.action;
                url += '/ajax';

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

                new Ajax.Updater( results_div, url, {
                        parameters: form_params,
                        asynchronous: 1,
                        onLoading: function(request) {
                                Logger.info( 'loading page '+page_nr+' into '+progress_div );
                                show_searching( page_nr );
                        },
                        onLoaded: function(request) {
                                Logger.info( 'page '+page_nr+' loaded into '+progress_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);

                new Ajax.Updater( 'results', '/search/record'+args, {
                        asynchronous: 1,
                        onLoading: function(request) {
                                show_searching();
                        },
                        onLoaded: 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();
        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();
                        return false;
                }
        }
        submit_results_form();
        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;
        $('page_nr').value = 1;
        submit_results_form();

        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] + '/';
                        } 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() {
        Logger.info("html_results ready");
        update_results_stat( get_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			submit_results_form();
22			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			$('page_nr').value = page_nr;
50			submit_results_form();
51
52			return false;
53			}
54
55			function get_page_nr() {
56			var page_nr = parseInt( $('page_nr').value ) \|\| 1;
57			return page_nr;
58			}
59
60			function reset_page_nr( nr ) {
61			if (! nr) nr = 1;
62			Logger.info('reset_page_nr to '+nr);
63	dpavlin	324	$('page_nr').value = nr;
64	dpavlin	283	}
65
66			/* syntaxtic sugar */
67			function set_page_nr(nr) {
68			return load_results_page(nr);
69			}
70
71			function next_page() {
72			load_results_page( get_page_nr() + 1 );
73			return false;
74			}
75
76			function prev_page() {
77			load_results_page( get_page_nr() - 1 );
78			return false;
79			}
80
81			/* toggle visibility and replace text with something else */
82			function toggleLinkAndElement ( link, elementID, text ) {
83
84			if ( link.innerHTML != text ) {
85			// change link text
86			link.oldInnerHTML = link.innerHTML;
87			link.innerHTML = text;
88			} else {
89			// change it back
90			link.innerHTML = link.oldInnerHTML;
91			}
92
93			Logger.debug('toggleLinkAndElement '+elementID+': '+Element.visible( elementID )+' text: '+text);
94
95			Element.toggle( elementID );
96
97			// why is this needed, Firefox 1.5?
98			if (Element.visible( elementID )) $( elementID ).style.display = 'block';
99
100			return false;
101			}
102
103
104			/*
105			submit results form using AJAX
106			*/
107			function submit_results_form() {
108			var results_form = $('results_form');
109
110			if (results_form) {
111			var form_params = Form.serialize( results_form );
112
113	dpavlin	354	var results_div = 'results';
114			var page_nr = get_page_nr() \|\| 0;
115			if (page_nr > 1) {
116			results_div += '_' + page_nr;
117			}
118	dpavlin	283
119	dpavlin	354	if (! $( results_div )) {
120			Logger.error('next page div '+results_div+' doesn\'t exist');
121			results_div = 'results';
122			}
123
124			var i_nr = 0;
125
126			var t = 'searching_'+page_nr;
127			if ( $(t) ) {
128			i_nr = page_nr;
129			Logger.debug('indicator div '+t+' found, using indicator nr: '+i_nr);
130			} else {
131			Logger.debug('can\'t find indicator div '+t);
132			}
133
134	dpavlin	406	var url = results_form.action;
135			url += '/ajax';
136	dpavlin	354
137	dpavlin	408	Logger.debug('submit_results_form to '+url+' page:'+page_nr+' div:'+results_div+' params:'+form_params);
138	dpavlin	406
139			new Ajax.Updater( results_div, url, {
140	dpavlin	283	parameters: form_params,
141			asynchronous: 1,
142			onLoading: function(request) {
143	dpavlin	354	Logger.info( 'loading page '+page_nr+' into '+progress_div );
144			show_searching( page_nr );
145	dpavlin	283	},
146			onLoaded: function(request) {
147	dpavlin	354	Logger.info( 'page '+page_nr+' loaded into '+progress_div );
148	dpavlin	408	update_results_stat( page_nr );
149	dpavlin	354	hide_searching( page_nr );
150	dpavlin	283	}
151			} ) ;
152			return false;
153			} else {
154			Logger.debug('no results_form element');
155			return undef;
156			}
157			return false;
158			}
159
160			/*
161			helper functions for submit_results_form()
162			*/
163
164			var search_active = 0;
165
166	dpavlin	354	function show_searching( page_nr ) {
167			Logger.debug('show_searching '+page_nr);
168			var el = 'searching';
169			if (page_nr && page_nr > 1) el += '_'+page_nr;
170			Element.show( el );
171	dpavlin	283	search_active = 1;
172			return false;
173			}
174
175	dpavlin	354	function hide_searching( page_nr ) {
176			Logger.debug('hide_searching '+page_nr);
177			var el = 'searching';
178			if (page_nr && page_nr > 1) {
179			Element.hide('page_'+(page_nr - 1));
180			}
181			Element.hide( el );
182			search_active = 0;
183	dpavlin	283	// new Effect.Appear('results', { duration: 0.3 });
184			return false;
185			}
186
187			/*
188			load record nr in some template
189			*/
190
191			function load_rec(record_uri, tmp_template_filename) {
192			if (! tmp_template_filename) tmp_template_filename = template_filename;
193			Logger.info('load_rec '+record_uri+' in '+tmp_template_filename);
194
195			var results_form = $('results_form');
196
197			if (results_form) {
198			var args = '?record_uri='+record_uri+'&template_filename='+tmp_template_filename;
199			Logger.debug('Ajax.Updater(results,/search/record) '+args);
200
201			new Ajax.Updater( 'results', '/search/record'+args, {
202			asynchronous: 1,
203			onLoading: function(request) {
204			show_searching();
205			},
206			onLoaded: function(request) {
207			hide_searching();
208			}
209			} ) ;
210			return false;
211			} else {
212			Logger.debug('no results_form element');
213			return undef;
214			}
215			return false;
216			}
217
218			/* click on checkbox */
219
220			function checkbox_click() {
221			if (search_active) return false;
222	dpavlin	329	Logger.debug('checkbox_click');
223	dpavlin	283	submit_results_form();
224			return true;
225			}
226
227	dpavlin	329	/* toggle or select checkbox with value toggle */
228
229			function checkbox_toggle( name, val ) {
230			return checkbox_magic( name, val, 0 );
231			}
232
233			function checkbox_single( name, val ) {
234			return checkbox_magic( name, val, 1 );
235			}
236
237			function checkbox_magic( name, val, single ) {
238
239			Logger.info('checkbox_magic('+name+','+val+','+single+')');
240
241			var form = $('results_form');
242			var inputs = form.getElementsByTagName('input');
243
244			for (var i = 0; i < inputs.length; i++) {
245			var input = inputs[i];
246			if (input.type != 'checkbox') continue;
247			if (single) {
248			input.checked = false;
249			}
250			if (input.name != name \|\| input.value != val) continue;
251			Logger.debug('toggle '+input.name+'='+input.value+' '+input.checked);
252			input.checked = ! input.checked;
253			if (! single) {
254			submit_results_form();
255			return false;
256			}
257			}
258			submit_results_form();
259			return false;
260			}
261
262	dpavlin	325	/* reset form fields in _reset hidden field to nothing */
263
264			function reset_form() {
265			Logger.info('reset '+$F('_reset'));
266
267			var names = new Array();
268			names = $F('_reset').split(',');
269			for(var i = 0; i < names.length; i++) {
270			Logger.debug('reset '+i+': '+names[i]);
271			$(names[i]).value='';
272			}
273
274			var t=$('search_table');
275	dpavlin	327	var max_p = t.rows.length;
276	dpavlin	325	for(var i = 0; i < attr_rows.length; i++) {
277			var p = attr_rows[i];
278			if (p != -1) {
279	dpavlin	327	if (p < max_p) {
280			Logger.debug('delete row '+p);
281			t.deleteRow( p );
282			} else {
283			Logger.error('skipping invalid delete row '+p);
284			}
285	dpavlin	325	}
286			}
287
288	dpavlin	327	attr_rows = new Array();
289
290	dpavlin	325	return false;
291			}
292
293	dpavlin	322	/* helper function for [% search($display, $search, $delimiter) %] */
294
295			function search_via_link(attr, val, template) {
296
297			if (! template) template = $('template_name').value;
298			Logger.info('search called from link for '+attr+'='+val+' in '+template);
299	dpavlin	325	save_search(attr, val);
300	dpavlin	322
301	dpavlin	325	$('template_name').value = template;
302	dpavlin	360	$('page_nr').value = 1;
303	dpavlin	325	submit_results_form();
304	dpavlin	322
305			return false;
306			}
307
308	dpavlin	324	/* save search and add element for it in search form */
309	dpavlin	322
310	dpavlin	324	var attr_rows = new Array();
311
312	dpavlin	322	function save_search( attr, val ) {
313	dpavlin	324	Logger.info('save_search('+attr+','+val+')');
314	dpavlin	322
315			var t=$('search_table');
316			if (! t) {
317			Logger.error("can't find search_table");
318	dpavlin	324	return undef;
319	dpavlin	322	}
320	dpavlin	325	reset_form();
321	dpavlin	322
322	dpavlin	328	var form = $('results_form');
323			var inputs = form.getElementsByTagName('input');
324
325			for (var i = 0; i < inputs.length; i++) {
326			var input = inputs[i];
327			if (input.name != attr) continue;
328			Logger.debug('found '+name+'='+input.value);
329			input.value = unescape( val );
330			return false;
331			}
332
333	dpavlin	324	var t_row_nr = t.rows.length;
334			var tr = t.insertRow( t_row_nr );
335	dpavlin	322
336	dpavlin	324	if (! tr) {
337			Logger.error("can't create row "+t_row_nr);
338			return undef;
339			}
340
341			var row_nr = attr_rows.length;
342			attr_rows[ row_nr ] = t_row_nr;
343
344			Logger.debug('added row '+t_row_nr+' to table [offset: '+row_nr+']');
345
346	dpavlin	322	var td = tr.insertCell(0);
347			td.setAttribute('align', 'right');
348			td.appendChild(
349			document.createTextNode(attr)
350			);
351
352			td = tr.insertCell(1);
353			td.setAttribute('align', 'left');
354
355			var el = document.createElement('input');
356			el.setAttribute('type', 'text');
357			el.setAttribute('disabled', 'true');
358			el.setAttribute('name', attr);
359			el.setAttribute('id', '_attr_'+attr+'_id');
360	dpavlin	324	el.setAttribute('size', val.length < 60 ? 60: val.length);
361			el.setAttribute('value', unescape( val ) );
362	dpavlin	322	td.appendChild(el);
363
364			var el = document.createElement('input');
365			el.setAttribute('type', 'button');
366			el.setAttribute('value', '-');
367			el.onclick = function () {
368	dpavlin	324	if (attr_rows[row_nr] == -1) {
369			Logger.error('row '+row_nr+' allready deleted');
370			return false;
371			}
372			Logger.info('remove:' + attr + ' row:'+row_nr+' ['+attr_rows[row_nr]+']');
373			t.deleteRow( attr_rows[row_nr] );
374
375			attr_rows[row_nr] = -1;
376			for (var i=(row_nr + 1); i < attr_rows.length; i++) {
377			attr_rows[i]--;
378			Logger.debug('moved '+i+' to '+attr_rows[i]);
379			}
380	dpavlin	322	submit_results_form();
381			return false;
382			}
383			td.appendChild(el);
384
385			return true;
386			};
387	dpavlin	408
388			/* update number of results for each database */
389
390			function update_results_stat( page_nr ) {
391			var el_name = 'results_page_' + page_nr;
392			var all_stats = new Array();
393			var node_stat = new Array();
394
395			var s_el = $( el_name );
396
397			if ( s_el ) {
398			all_stats = s_el.value.split(/ /);
399			for (var i = 0; i < all_stats.length; i++) {
400			node_stat = all_stats[i].split(/\//);
401			var result_name = 'node_' + node_stat[0] + '_results';
402			var u_el = $( result_name );
403			if (u_el) {
404			Logger.debug("node "+node_stat[0]+" has "+node_stat[1]+" results");
405			u_el.innerHTML = node_stat[1] + '/';
406			} else {
407			Logger.error("can't find " + result_name);
408			}
409			}
410			} else {
411			Logger.error("can't find element "+el_name);
412			}
413			}
414
415			/* function which is called using DOM.Ready when html_results div is ready */
416
417			function results_ready() {
418			Logger.info("html_results ready");
419			update_results_stat( get_page_nr() );
420			var el = $( 'toggle_database_list' );
421			if (el) {
422			el.onclick()
423			} else {
424			Logger.error("can't find toggle_database_list");
425			}
426			}
427