通过检测CTRL+;javascript中的键
请查找以下代码以了解更多信息通过检测CTRL+;javascript中的键,javascript,html,autocomplete,textbox,Javascript,Html,Autocomplete,Textbox,请查找以下代码以了解更多信息 <html> <head> <title>Autosearch</title> <script type="text/javascript" src="autosuggest.js"></script> <script type="text/javascript" src="suggestion.js"></script> <style&g
<html>
<head>
<title>Autosearch</title>
<script type="text/javascript" src="autosuggest.js"></script>
<script type="text/javascript" src="suggestion.js"></script>
<style>
#txtbox{color:Black; width:200px};
</style>
</head>
<body>
<p>search</p>
<p><input type="text" id="txtbox" /></p>
<script type="text/javascript">
window.onload = function () {
var textbox = new AutoSuggestControl
(document.getElementById("txtbox"),suggestions);
}
</script>
</body>
</html>
javascript文件:
suggestions= {
keyword :
[
{child1:'Pay who? How Much? When?', child2:' who?'},
{child1:'Balance', child2:'type?'},
{child1:'Beneficiary', child2:'add'},
{child1:'Change Passcode'},
{child1:'Change Memorable Word'}
]
};
function AutoSuggestControl(textbox,suggestions) {
this.textbox=textbox;
this.suggestions=suggestions;
var caretpos=0;
init();
function requestsuggestion(AutoSuggestControl){
console.log("requestsuggestion");
var This=this;
var suggestedvalue = [];
caretpos=textbox.selectionStart;
if(textbox.selectionStart || textbox.selectionStart == '0')
var temptextboxval=textbox.value.substr(0,caretpos);
if(temptextboxval.length > 0)
{
for (var i=0; i < This.suggestions.keyword.length; i++) {
if
(suggestions.
keyword[i].
child1.toLowerCase().indexOf
(temptextboxval.toLowerCase () ) == 0)
{
suggestedvalue.push(This.suggestions.keyword[i].child1);
console.log(suggestions.keyword[i].child1);
}
}
}
function autosuggest() {
if(suggestedvalue.length > 0){
typeAhead(suggestedvalue[0]);
console.log(suggestedvalue[0]);
}
else{
textbox.value=temptextboxval;
}
}
function typeAhead(suggestedvalue) {
if (textbox.createTextRange || textbox.setSelectionRange)
{
var txtLen=caretpos;
textbox.value=suggestedvalue;
setCaretPosition(txtLen,suggestedvalue.length);
}
}
function setCaretPosition(txtLen,sugLen){
if (textbox.createTextRange)
{
var oRange = textbox.createTextRange();
oRange.moveStart("character", sugLen);
oRange.moveEnd("character", txtLen - textbox.value.length);
oRange.select();
//use setSelectionRange() for Mozilla
}
else if (textbox.setSelectionRange)
{
textbox.setSelectionRange(sugLen,txtLen);
}
//this.lastCaret=txtLen;
//set focus back to the textbox
textbox.focus();
}
autosuggest();
}
function init() {
var oThis = this;
//assign the onkeyup event handler
textbox.onkeyup = function (event) {
//check for the proper location of the event object
if (!event) {
event = window.event;
}
console.log(textbox);
//call the handleKeyUp() method with the event object
handleKeyUp(event);
};
}
function handleKeyUp(event) {
var e=event;
var stay=0;
var iKeyCode = event.keyCode;
document.onkeydown=function(e){
if(iKeyCode==65 && e.ctrlKey)
{stay=1;
}
console.log("stay"+stay);
if(stay==1)
textbox.focus();
else
requestsuggestion(AutoSuggestControl);
}
}
功能自动建议控件(文本框,建议){
this.textbox=textbox;
这.建议=建议;
var-caretpos=0;
init();
功能请求建议(AutoSuggestControl){
控制台日志(“请求建议”);
var This=此;
var建议值=[];
caretpos=textbox.selectionStart;
if(textbox.selectionStart | | textbox.selectionStart=='0')
var testextboxval=textbox.value.substr(0,caretpos);
如果(ExtBoxVal.length>0)
{
for(var i=0;i0){
提前输入(建议值[0]);
console.log(suggestedvalue[0]);
}
否则{
textbox.value=testextboxval;
}
}
函数类型前置(建议值){
if(textbox.createTextRange | | textbox.setSelectionRange)
{
var txtLen=caretpos;
textbox.value=建议值;
setCaretPosition(txtLen,suggestedvalue.length);
}
}
函数setCaretPosition(txtLen、sugLen){
if(textbox.createTextRange)
{
var oRange=textbox.createTextRange();
橙色。移动开始(“字符”,sugLen);
oRange.moveEnd(“字符”,txtLen-textbox.value.length);
橙色。选择();
//对Mozilla使用setSelectionRange()
}
else if(textbox.setSelectionRange)
{
textbox.setSelectionRange(sugLen、txtLen);
}
//this.lastCaret=txtLen;
//将焦点设置回文本框
textbox.focus();
}
自动建议();
}
函数init(){
var oThis=这个;
//分配onkeyup事件处理程序
textbox.onkeyup=函数(事件){
//检查事件对象的正确位置
如果(!事件){
event=window.event;
}
console.log(文本框);
//使用事件对象调用handleKeyUp()方法
handleKeyUp(事件);
};
}
函数handleKeyUp(事件){
var e=事件;
var=0;
var iKeyCode=event.keyCode;
document.onkeydown=函数(e){
如果(iKeyCode==65&&e.ctrlKey)
{stay=1;
}
控制台日志(“停留”+停留);
如果(保持==1)
textbox.focus();
其他的
请求建议(自动建议控制);
}
}
我正在创建一个自动提示文本框,但当我按ctrl+a
键时,该文本框将变为空白。它应在保持光标位置的同时聚焦文本框。请帮助我解决此问题
非常感谢您。当您单击Ctrl+A时
if(iKeyCode==65 && e.ctrlKey)
{
//this block does not work , because you will click first Ctrl, then A(65)
stay=1;
}
我认为您必须更改为&&to | |(或)。当您单击Ctrl+A时
if(iKeyCode==65 && e.ctrlKey)
{
//this block does not work , because you will click first Ctrl, then A(65)
stay=1;
}
我认为您必须将&&更改为| |(或)。我已经尝试过了,但是如果您通常键入“a”,那么该条件也会得到满足,并且会导致不希望的结果。例如,当您要键入“pay”时。我还想更改尚未键入的建议字符串的颜色。有什么想法吗?如何做到这一点。除了focus()。我已经尝试过了,但是如果您正常键入“a”,那么该条件也会得到满足,并且会导致不想要的结果。例如,当您要键入“pay”时。我还想更改尚未键入的建议字符串的颜色。对此有何想法?如何操作。除了focus()。