562 lines
No EOL
13 KiB
JavaScript
562 lines
No EOL
13 KiB
JavaScript
/* adapted from: Timothy Groves - http://www.brandspankingnew.net */
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var cur_autosug;
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function hide_autosuggest() { if(cur_autosug)cur_autosug.clearSuggestions(); }
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function AutoSuggest(id, param) {
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this.fld = $i(id);
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if (!this.fld) {return 0; alert('AutoSuggest: No ID');}
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// init variables
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this.init();
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// parameters object
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this.oP = param ? param : {};
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// defaults
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var k, def = {
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minchars:1, meth:"get", varname:"input", className:"autosuggest", timeout:4000
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,delay:1000, offsety:-5, shownoresults: true, noresults: "No results!", maxheight: 250
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,cache: false, maxentries: 25, fixed_options: false, xdelta: 0, ydelta: 5
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}
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for (k in def)
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{
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if (typeof(this.oP[k]) != typeof(def[k]))
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this.oP[k] = def[k];
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}
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// set keyup handler for field
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// and prevent autocomplete from client
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var p = this;
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// NOTE: not using addEventListener because UpArrow fired twice in Safari
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//DOM.addEvent( this.fld, 'keyup', function(ev){ return me.onKeyPress(ev); } );
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this.fld.onkeypress = function(ev){ if(!(selector && selector.display)) return p.onKeyPress(ev); };
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this.fld.onkeyup = function(ev){ if(!(selector && selector.display)) return p.onKeyUp(ev); };
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this.fld.setAttribute("autocomplete","off");
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};
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AutoSuggest.prototype.init = function() {
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this.sInp = "";
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this.nInpC = 0;
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this.aSug = [];
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this.iHigh = 0;
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}
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AutoSuggest.prototype.onKeyPress = function(ev)
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{
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var key = (window.event) ? window.event.keyCode : ev.keyCode;
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//var ev = (window.event) ? window.event : ev;
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//var key = ev.keyCode ? ev.keyCode : ev.charCode;
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// set responses to keydown events in the field
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// this allows the user to use the arrow keys to scroll through the results
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// ESCAPE clears the list
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// TAB sets the current highlighted value
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//
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var RETURN = 13;
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var TAB = 9;
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var ESC = 27;
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var bubble = 1;
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switch(key)
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{
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case TAB:
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this.setHighlightedValue();
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bubble = 0;
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break;
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case RETURN:
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this.setHighlightedValue();
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bubble = 0;
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break;
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case ESC:
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this.clearSuggestions();
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break;
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}
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return bubble;
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}
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AutoSuggest.prototype.onKeyUp = function(ev)
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{
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var key = (window.event) ? window.event.keyCode : ev.keyCode;
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//var ev = (window.event) ? window.event : ev;
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//var key = ev.keyCode ? ev.keyCode : ev.charCode;
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var ARRUP = 38; var ARRDN = 40;
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var bubble = 1;
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switch(key) {
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case ARRUP:
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this.changeHighlight(key);
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bubble = 0;
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break;
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case ARRDN:
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this.changeHighlight(key);
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bubble = 0;
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break;
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default:
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if(key!=13) {
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if(this.oP.fixed_options)
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this.find_nearest(key);
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else
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this.getSuggestions(this.fld.value);
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}
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}
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return bubble;
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}
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AutoSuggest.prototype.clear_user_inp = function() {
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this.user_inp = '';
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}
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AutoSuggest.prototype.find_nearest = function (key) {
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var list = this.ul;
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var same_key = 0;
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// make the list
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if (!list) {
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if(this.aSug) {
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this.createList(this.aSug);
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} if(this.aSug[0].value.substr(0,this.user_inp.length).toLowerCase()==String.fromCharCode(key)) {
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this.resetTimeout();
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return;
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}
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}
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// values for multiple keystrokes
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if((this.user_inp.length==1) && this.user_inp == String.fromCharCode(key).toLowerCase()) {
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same_key = 1;
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} else {
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this.user_inp += String.fromCharCode(key).toLowerCase();
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}
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// clear user keys
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window.clearTimeout(this.clear_timer);
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// loop over the next after the current
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var st = this.iHigh;
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// continuation of typing, also check the current value
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if(!same_key) st--;
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for(var i = st; i<this.aSug.length; i++) {
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if(this.aSug[i].value.substr(0,this.user_inp.length).toLowerCase()==this.user_inp) {
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this.setHighlight(i+1);
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this.resetTimeout();
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return;
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}
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}
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this.clear_timer = window.setTimeout('if(cur_autosug)cur_autosug.clear_user_inp()', 3000);
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// begin at the top
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for(var i = 0; i<st; i++) {
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if(this.aSug[i].value.substr(0,this.user_inp.length).toLowerCase()==this.user_inp) {
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this.setHighlight(i+1);
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this.resetTimeout();
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return;
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}
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}
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}
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AutoSuggest.prototype.getSuggestions = function (val)
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{
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// if input stays the same, do nothing
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if (val == this.sInp) return 0;
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// kill list
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if(this.body && this.body.parentNode)
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this.body.parentNode.removeChild(this.body);
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this.sInp = val;
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// input length is less than the min required to trigger a request
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// do nothing
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if (val.length < this.oP.minchars)
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{
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this.aSug = [];
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this.nInpC = val.length;
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return 0;
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}
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var ol = this.nInpC; // old length
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this.nInpC = val.length ? val.length : 0;
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// if caching enabled, and user is typing (ie. length of input is increasing)
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// filter results out of aSuggestions from last request
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var l = this.aSug.length;
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if (this.nInpC > ol && l && l<this.oP.maxentries && this.oP.cache)
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{
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var arr = [];
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for (var i=0;i<l;i++)
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{
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if (this.aSug[i].value.substr(0,val.length).toLowerCase() == val.toLowerCase())
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arr.push( this.aSug[i] );
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}
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this.aSug = arr;
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this.createList(this.aSug);
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return false;
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}
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else
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// do new request
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{
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var me = this;
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var input = this.sInp;
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clearTimeout(this.ajID);
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this.ajID = setTimeout( function() { me.doAjaxRequest(input) }, this.oP.delay );
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}
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return false;
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};
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AutoSuggest.prototype.doAjaxRequest = function (input)
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{
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// check that saved input is still the value of the field
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if (input != this.fld.value)
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return false;
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var me = this;
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var q = '';
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this.oP.link_field.set_get_query();
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if(this.oP.link_field.get_query) {
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if(cur_frm)var doc = locals[cur_frm.doctype][cur_frm.docname];
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q = this.oP.link_field.get_query(doc, this.oP.link_field.doctype, this.oP.link_field.docname);
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}
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// do ajax request
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this.fld.old_bg = this.fld.style.backgroundColor;
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$y(this.fld, {backgroundColor:'#FFC'});
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$c('webnotes.widgets.search.search_link', args={
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'txt': this.fld.value,
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'dt':this.oP.link_field.df.options,
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'query':q }
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, function(r,rt) {
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$y(me.fld, {backgroundColor:(me.fld.old_bg ? me.fld.old_bg : '#FFF')});
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me.setSuggestions(r, rt, input);
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});
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return;
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};
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AutoSuggest.prototype.setSuggestions = function (r, rt, input)
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{
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// if field input no longer matches what was passed to the request
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// don't show the suggestions
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if (input != this.fld.value)
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return false;
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this.aSug = [];
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if (this.oP.json) {
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//var jsondata = eval('(' + req.responseText + ')');
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var jsondata = eval('(' + rt + ')');
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if(jsondata) {
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for (var i=0;i<jsondata.results.length;i++) {
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this.aSug.push( { 'id':jsondata.results[i].id, 'value':jsondata.results[i].value, 'info':jsondata.results[i].info } );
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}
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}
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}
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this.createList(this.aSug);
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};
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AutoSuggest.prototype.createList = function(arr) {
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if(cur_autosug && cur_autosug!= this)
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cur_autosug.clearSuggestions();
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this.aSug = arr;
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this.user_inp = '';
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var me = this;
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var pos = objpos(this.fld); pos.y += this.oP.ydelta; pos.x += this.oP.xdelta;
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if(pos.x <= 0 || pos.y <= 0) return; // field hidden
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// get rid of old list and clear the list removal timeout
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if(this.body && this.body.parentNode)
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this.body.parentNode.removeChild(this.body);
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this.killTimeout();
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// if no results, and shownoresults is false, do nothing
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if (arr.length == 0 && !this.oP.shownoresults)
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return false;
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// create holding div
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var div = $ce("div", {className:this.oP.className});
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top_index++;
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div.style.zIndex = 1100;
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div.isactive = 1;
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// create and populate ul
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this.ul = $ce("ul", {id:"as_ul"}); var ul = this.ul;
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// loop throught arr of suggestionscreating an LI element for each suggestion
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for (var i=0;i<arr.length;i++) {
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// format output with the input enclosed in a EM element
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// (as HTML, not DOM)
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//
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var val = arr[i].value;
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if(this.oP.fixed_options) {
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var output = val;
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} else {
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var st = val.toLowerCase().indexOf( this.sInp.toLowerCase() );
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var output = val.substring(0,st) + "<em>" + val.substring(st, st+this.sInp.length) + "</em>" + val.substring(st+this.sInp.length);
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}
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var span = $ce("span", {}, output, true);
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span.isactive = 1;
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if (arr[i].info != "")
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{
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var small = $ce("small", {}, arr[i].info);
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span.appendChild(small);
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small.isactive = 1
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}
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var a = $a(null, "a");
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a.appendChild(span);
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a.name = i+1;
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a.onclick = function (e) {
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me.setHighlightedValue();
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};
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a.onmouseover = function () { me.setHighlight(this.name); };
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a.isactive = 1;
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var li = $ce( "li", {}, a );
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// empty option
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if(!val) {
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$y(span,{height:'12px'});
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}
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ul.appendChild( li );
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}
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// no results
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//
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if (arr.length == 0 && this.oP.shownoresults) {
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var li = $ce( "li", {className:"as_warning"}, this.oP.noresults);
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ul.appendChild( li );
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}
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div.appendChild( ul );
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// get position of target textfield
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// set width of holding div to width of field
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//
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var mywid = cint(this.fld.offsetWidth);
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if(this.oP.fixed_options) {
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mywid += 20;
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}
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if(cint(mywid) < 100) mywid = 100;
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var left = pos.x - ((mywid - this.fld.offsetWidth)/2);
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if(left<0) {
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mywid = mywid + (left/2); left = 0;
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}
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div.style.left = left + "px";
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div.style.top = ( pos.y + this.fld.offsetHeight + this.oP.offsety ) + "px";
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div.style.width = mywid + 'px';
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// set mouseover functions for div
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// when mouse me leaves div, set a timeout to remove the list after an interval
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// when mouse enters div, kill the timeout so the list won't be removed
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//
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div.onmouseover = function(){ me.killTimeout() };
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div.onmouseout = function(){ me.resetTimeout() };
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// add DIV to document
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//
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//document.getElementsByTagName("body")[0].appendChild(div);
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popup_cont.appendChild(div);
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//height
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if(cint(div.clientHeight) >= this.oP.maxheight) {
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div.original_height = cint(div.clientHeight);
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$y(div,{height: this.oP.maxheight+'px', overflowY:'auto'});
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div.scrollbars = true;
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}
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this.body = div;
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if(isIE) {
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$y(div,{border:'1px solid #444'});
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}
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// currently no item is highlighted
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//
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// if value, then hilight value
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this.iHigh = 0;
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if(!this.iHigh)
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this.changeHighlight(40); // hilight first
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// remove list after an interval
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//
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this.resetTimeout();
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};
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AutoSuggest.prototype.changeHighlight = function(key)
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{
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var list = this.ul;
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if (!list) {
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if(this.aSug)
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this.createList(this.aSug);
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return false;
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}
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var n;
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if (key == 40)
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n = this.iHigh + 1;
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else if (key == 38)
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n = this.iHigh - 1;
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if (n > list.childNodes.length)
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n = list.childNodes.length;
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if (n < 1)
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n = 1;
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this.setHighlight(n);
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};
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AutoSuggest.prototype.setHighlight = function(n)
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{
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this.resetTimeout();
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var list = this.ul;
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if (!list)
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return false;
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if (this.iHigh > 0)
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this.clearHighlight();
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this.iHigh = Number(n);
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var ele = list.childNodes[this.iHigh-1];
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ele.className = "as_highlight";
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// set scroll
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if(this.body.scrollbars) {
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var cur_y = 0;
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for(var i=0; i<this.iHigh-1; i++)
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cur_y += (isIE ? list.childNodes[i].offsetHeight : list.childNodes[i].clientHeight);
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// scroll up
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if(cur_y < this.body.scrollTop)
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this.body.scrollTop = cur_y;
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// scroll down
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ff_delta = (isFF ? cint(this.iHigh/2) : 0);
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var h = (isIE ? ele.offsetHeight : ele.clientHeight);
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if(cur_y >= (this.body.scrollTop + this.oP.maxheight - h))
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this.body.scrollTop = cur_y - this.oP.maxheight + h + ff_delta;
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}
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// no values returned
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if(!this.aSug[this.iHigh-1]) return;
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};
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AutoSuggest.prototype.clearHighlight = function()
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{
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var list = this.ul;
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if (!list)
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return false;
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if (this.iHigh > 0) {
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list.childNodes[this.iHigh-1].className = "";
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this.iHigh = 0;
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}
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};
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AutoSuggest.prototype.setHighlightedValue = function ()
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{
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if (this.iHigh) {
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this.sInp = this.aSug[ this.iHigh-1 ].value;
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// set the value
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if(this.set_input_value) {
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this.set_input_value(this.sInp);
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} else {
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this.fld.value = this.sInp;
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}
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this.clearSuggestions();
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this.killTimeout();
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if(this.fld.onchange){
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cur_autosug = null;
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this.fld.onchange();
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}
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}
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};
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AutoSuggest.prototype.killTimeout = function() {
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cur_autosug = this;
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clearTimeout(this.toID);
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clearTimeout(this.clear_timer);
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};
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AutoSuggest.prototype.resetTimeout = function() {
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cur_autosug = this;
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clearTimeout(this.toID);
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clearTimeout(this.clear_timer);
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this.toID = setTimeout(function () { if(cur_autosug)cur_autosug.clearSuggestions(1); }, this.oP.timeout);
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};
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AutoSuggest.prototype.clearSuggestions = function (from_timeout) {
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this.killTimeout();
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cur_autosug = null;
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var me = this;
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if (this.body) { $dh(this.body); delete this.body; }
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if(!this.ul) return;
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if(this.ul)
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delete this.ul;
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this.iHigh = 0;
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// accept the value
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if(from_timeout && this.fld.field_object && !this.oP.fixed_options) {
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// call onchange
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// we do not call onchange from the link field if autosuggest options are open
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if(this.fld.onchange)this.fld.onchange();
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}
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}
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/* create element */
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$ce = function ( type, attr, cont, html )
|
|
{
|
|
var ne = document.createElement( type );
|
|
if (!ne) return 0;
|
|
|
|
for (var a in attr) ne[a] = attr[a];
|
|
|
|
var t = typeof(cont);
|
|
|
|
if (t == "string" && !html) ne.appendChild( document.createTextNode(cont) );
|
|
else if (t == "string" && html) ne.innerHTML = cont;
|
|
else if (t == "object") ne.appendChild( cont );
|
|
|
|
return ne;
|
|
}; |