Does not work in firefox | Newbie | | Join Date: Apr 2008
Posts: 19
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i have a auto suggest script that does not work in firefox , works great on IE. - /*******************************************************
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AutoSuggest - a javascript automatic text input completion component
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Copyright (C) 2005 Joe Kepley, The Sling & Rock Design Group, Inc.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*******************************************************
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Please send any useful modifications or improvements via
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email to joekepley at yahoo (dot) com
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*******************************************************/
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/********************************************************
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The AutoSuggest class binds to a text input field
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and creates an automatic suggestion dropdown in the style
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of the "IntelliSense" and "AutoComplete" features of some
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desktop apps.
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Parameters:
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elem: A DOM element for an INPUT TYPE="text" form field
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suggestions: an array of strings to be used as suggestions
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when someone's typing.
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Example usage:
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Please enter the name of a fruit.
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<input type="text" id="fruit" name="fruit" />
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<script language="Javascript">
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var fruits=new Array("apple","orange","grape","kiwi","cumquat","banana");
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new AutoSuggest(document.getElementById("fruit",fruits));
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</script>
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Requirements:
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Unfortunately the AutoSuggest class doesn't seem to work
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well with dynamically-created DIVs. So, somewhere in your
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HTML, you'll need to add this:
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<div id="autosuggest"><ul></ul></div>
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Here's a default set of style rules that you'll also want to
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add to your CSS:
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.suggestion_list
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{
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background: white;
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border: 1px solid;
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padding: 4px;
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}
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.suggestion_list ul
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{
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padding: 0;
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margin: 0;
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list-style-type: none;
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}
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.suggestion_list a
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{
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text-decoration: none;
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color: navy;
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}
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.suggestion_list .selected
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{
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background: navy;
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color: white;
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}
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.suggestion_list .selected a
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{
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color: white;
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}
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#autosuggest
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{
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display: none;
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}
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*********************************************************/
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function AutoSuggest(elem, suggestions)
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{
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//The 'me' variable allow you to access the AutoSuggest object
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//from the elem's event handlers defined below.
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var me = this;
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//A reference to the element we're binding the list to.
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this.elem = elem;
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this.suggestions = suggestions;
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//Arrow to store a subset of eligible suggestions that match the user's input
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this.eligible = new Array();
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//The text input by the user.
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this.inputText = null;
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//A pointer to the index of the highlighted eligible item. -1 means nothing highlighted.
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this.highlighted = 0;
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//A div to use to create the dropdown.
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this.div = document.getElementById("autosuggest");
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//Do you want to remember what keycode means what? Me neither.
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var TAB = 9;
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var ESC = 27;
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var KEYUP = 38;
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var KEYDN = 40;
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//The browsers' own autocomplete feature can be problematic, since it will
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//be making suggestions from the users' past input.
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//Setting this attribute should turn it off.
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elem.setAttribute("autocomplete","off");
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//We need to be able to reference the elem by id. If it doesn't have an id, set one.
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if(!elem.id)
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{
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var id = "autosuggest" + idCounter;
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idCounter++;
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elem.id = id;
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}
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/********************************************************
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onkeydown event handler for the input elem.
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Tab key = use the highlighted suggestion, if there is one.
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Esc key = get rid of the autosuggest dropdown
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Up/down arrows = Move the highlight up and down in the suggestions.
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********************************************************/
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elem.onkeydown = function(ev)
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{
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var key = me.getKeyCode(ev);
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switch(key)
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{
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case TAB:
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me.useSuggestion();
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break;
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case ESC:
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me.hideDiv();
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break;
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case KEYUP:
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if (me.highlighted > 0)
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{
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me.highlighted--;
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}
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me.changeHighlight(key);
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break;
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case KEYDN:
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//alert(me.highlighted)
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if (me.highlighted < (me.eligible.length - 1))
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{
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//alert(me.highlighted)
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me.highlighted++;
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}
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me.changeHighlight(key);
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break;
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}
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};
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/********************************************************
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onkeyup handler for the elem
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If the text is of sufficient length, and has been changed,
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then display a list of eligible suggestions.
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********************************************************/
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elem.onkeyup = function(ev)
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{
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var key = me.getKeyCode(ev);
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switch(key)
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{
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//The control keys were already handled by onkeydown, so do nothing.
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case TAB:
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case ESC:
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case KEYUP:
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case KEYDN:
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return;
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default:
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if (this.value != me.inputText && this.value.length > 0)
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{
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me.inputText = this.value;
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me.getEligible();
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me.createDiv();
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me.positionDiv();
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me.showDiv();
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}
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else
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{
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me.hideDiv();
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}
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}
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};
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/********************************************************
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Insert the highlighted suggestion into the input box, and
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remove the suggestion dropdown.
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********************************************************/
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this.useSuggestion = function()
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{
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//alert(this.eligible[this.highlighted])
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if (this.highlighted > -1)
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{
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this.elem.value = this.eligible[this.highlighted];
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this.hideDiv();
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//It's impossible to cancel the Tab key's default behavior.
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//So this undoes it by moving the focus back to our field right after
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//the event completes.
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setTimeout("document.getElementById('" + this.elem.id + "').focus()",0);
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}
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};
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/********************************************************
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Display the dropdown. Pretty straightforward.
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********************************************************/
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this.showDiv = function()
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{
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this.div.style.display = 'block';
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};
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/********************************************************
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Hide the dropdown and clear any highlight.
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********************************************************/
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this.hideDiv = function()
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{
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this.div.style.display = 'none';
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this.highlighted = -1;
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};
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/********************************************************
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Modify the HTML in the dropdown to move the highlight.
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********************************************************/
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this.changeHighlight = function()
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{
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var lis = this.div.getElementsByTagName('LI');
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//for (i in lis)
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for (var i=0, j=lis.length; i<j; i++)
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{
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var li = lis[i];
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//alert(li)
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if (this.highlighted == i)
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{
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li.className = "selected";
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//alert(li.className)
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}
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else
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{
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li.className = "";
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}
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}
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};
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/********************************************************
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Position the dropdown div below the input text field.
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********************************************************/
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this.positionDiv = function()
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{
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var el = this.elem;
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var x = 0;
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var y = el.offsetHeight;
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//Walk up the DOM and add up all of the offset positions.
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while (el.offsetParent && el.tagName.toUpperCase() != 'BODY')
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{
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x += el.offsetLeft;
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y += el.offsetTop;
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el = el.offsetParent;
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}
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x += el.offsetLeft;
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y += el.offsetTop;
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this.div.style.left = x + 'px';
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this.div.style.top = y + 'px';
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};
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/********************************************************
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Build the HTML for the dropdown div
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********************************************************/
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this.createDiv = function()
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{
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var ul = document.createElement('ul');
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//Create an array of LI's for the words.
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for (i in this.eligible)
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{
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var word = this.eligible[i];
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var li = document.createElement('li');
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var a = document.createElement('a');
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a.href="javascript:false";
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a.innerHTML = word;
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li.appendChild(a);
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if (me.highlighted == i)
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{
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li.className = "selected";
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}
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ul.appendChild(li);
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}
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this.div.replaceChild(ul,this.div.childNodes[0]);
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/********************************************************
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mouseover handler for the dropdown ul
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move the highlighted suggestion with the mouse
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********************************************************/
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ul.onmouseover = function(ev)
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{
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//Walk up from target until you find the LI.
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var target = me.getEventSource(ev);
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while (target.parentNode && target.tagName.toUpperCase() != 'LI')
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{
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target = target.parentNode;
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}
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var lis = me.div.getElementsByTagName('LI');
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for (i in lis)
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{
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var li = lis[i];
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if(li == target)
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{
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me.highlighted = i;
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break;
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}
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}
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me.changeHighlight();
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};
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/********************************************************
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click handler for the dropdown ul
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insert the clicked suggestion into the input
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********************************************************/
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ul.onclick = function(ev)
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{
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me.useSuggestion();
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me.hideDiv();
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me.cancelEvent(ev);
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return false;
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};
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this.div.className="suggestion_list";
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this.div.style.position = 'absolute';
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};
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/********************************************************
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determine which of the suggestions matches the input
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********************************************************/
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this.getEligible = function()
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{
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//this.eligible = new Array();
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for (i in this.suggestions)
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{
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var suggestion = this.suggestions[i];
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if(suggestion.toLowerCase().indexOf(this.inputText.toLowerCase()) == "0")
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{
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this.eligible[this.eligible.length]=suggestion;
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//this.eligible[]=suggestion;
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}
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}
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};
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/********************************************************
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Helper function to determine the keycode pressed in a
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browser-independent manner.
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********************************************************/
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this.getKeyCode = function(ev)
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{
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if(ev) //Moz
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{
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return ev.keyCode;
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}
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if(window.event) //IE
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{
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return window.event.keyCode;
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}
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};
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/********************************************************
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Helper function to determine the event source element in a
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browser-independent manner.
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********************************************************/
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this.getEventSource = function(ev)
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{
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if(ev) //Moz
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{
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return ev.target;
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}
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if(window.event) //IE
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{
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return window.event.srcElement;
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}
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};
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/********************************************************
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Helper function to cancel an event in a
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browser-independent manner.
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(Returning false helps too).
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********************************************************/
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this.cancelEvent = function(ev)
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{
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if(ev) //Moz
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{
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ev.preventDefault();
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ev.stopPropagation();
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}
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if(window.event) //IE
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{
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window.event.returnValue = false;
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}
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}
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}
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//counter to help create unique ID's
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var idCounter = 0;
|  | Moderator | | Join Date: May 2007 Location: Munich, Germany
Posts: 4,126
| | | re: Does not work in firefox
please have a look at FF's error-console and tell what error occurs ... or may be you have a link to a sample-page where the problem could be seen?
kind regards
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