Javascript 代码镜像在任何键控后自动完成?
我正在尝试添加一个自定义的自动完成,我想在用户输入时触发它(当然是可配置的)。我发现了几个codemirror的自动完成示例: 及Javascript 代码镜像在任何键控后自动完成?,javascript,codemirror,key-events,Javascript,Codemirror,Key Events,我正在尝试添加一个自定义的自动完成,我想在用户输入时触发它(当然是可配置的)。我发现了几个codemirror的自动完成示例: 及 但是这两种方法都会触发特定的键(一个键的控制空间和一个键的控制空间)。注意:这个答案适用于最新版本的CodeMirror onKeyEvent: function(e , s){ if (s.type == "keyup") { consol
但是这两种方法都会触发特定的键(一个键的控制空间和一个键的控制空间)。注意:这个答案适用于最新版本的CodeMirror
onKeyEvent: function(e , s){
if (s.type == "keyup")
{
console.log("test");
}
}
要同时显示自动完成小部件,请执行以下操作:
onKeyEvent: function (e, s) {
if (s.type == "keyup") {
CodeMirror.showHint(e);
}
}
它可能有用
editor.on("inputRead",function(cm,changeObj){
// hinting logic
})
据我所知,“inputRead”是在“codemirror”中显示“自动完成”的最佳事件。
唯一的缺点是,您无法显示有关退格或删除的提示。对于5.7版,以前提出的两种解决方案对我都不起作用(而且我认为它们甚至对早期版本也有缺陷)。我的解决方案:
myCodeMirror.on("keyup", function (cm, event) {
if (!cm.state.completionActive && /*Enables keyboard navigation in autocomplete list*/
event.keyCode != 13) { /*Enter - do not open autocomplete list just after item has been selected in it*/
CodeMirror.commands.autocomplete(cm, null, {completeSingle: false});
}
});
工作原理:
仅当尚未打开自动完成弹出窗口时,才会打开该弹出窗口(否则,键盘导航将导致在再次选择第一项的情况下重新打开弹出窗口)
当您单击Enter时,您希望弹出窗口关闭,因此这是一个不应该触发自动完成的字符的特殊情况(您可以考虑当您想显示空行的完成)的情况。
最后一个修正是设置<代码>完成>:错误< /代码>,它防止在键入某个单词时,在中间,它自动完成,然后通过反射继续键入。因此,用户总是需要从弹出窗口中选择想要的字符串(即使是单个选项)。.
最类似智能感知的行为可以通过以下方式实现:var ExcludedIntelliSenseTriggerKeys =
{
"8": "backspace",
"9": "tab",
"13": "enter",
"16": "shift",
"17": "ctrl",
"18": "alt",
"19": "pause",
"20": "capslock",
"27": "escape",
"33": "pageup",
"34": "pagedown",
"35": "end",
"36": "home",
"37": "left",
"38": "up",
"39": "right",
"40": "down",
"45": "insert",
"46": "delete",
"91": "left window key",
"92": "right window key",
"93": "select",
"107": "add",
"109": "subtract",
"110": "decimal point",
"111": "divide",
"112": "f1",
"113": "f2",
"114": "f3",
"115": "f4",
"116": "f5",
"117": "f6",
"118": "f7",
"119": "f8",
"120": "f9",
"121": "f10",
"122": "f11",
"123": "f12",
"144": "numlock",
"145": "scrolllock",
"186": "semicolon",
"187": "equalsign",
"188": "comma",
"189": "dash",
"190": "period",
"191": "slash",
"192": "graveaccent",
"220": "backslash",
"222": "quote"
}
EditorInstance.on("keyup", function(editor, event)
{
var __Cursor = editor.getDoc().getCursor();
var __Token = editor.getTokenAt(__Cursor);
if (!editor.state.completionActive &&
!ExcludedIntelliSenseTriggerKeys[(event.keyCode || event.which).toString()] &&
(__Token.type == "tag" || __Token.string == " " || __Token.string == "<" || __Token.string == "/"))
{
CodeMirror.commands.autocomplete(editor, null, { completeSingle: false });
}
});
var ExcludedIntelliSenseTriggerKeys=
{
“8”:“退格”,
“9”:“选项卡”,
“13”:“输入”,
“16”:“移位”,
“17”:“ctrl”,
“18”:“alt”,
“19”:“暂停”,
“20”:“capslock”,
“27”:“逃跑”,
“33”:“寻呼”,
“34”:“向下翻页”,
“35”:“结束”,
“36”:“家”,
“37”:“左”,
“38”:“向上”,
“39”:“对”,
“40”:“向下”,
“45”:“插入”,
“46”:“删除”,
“91”:“左窗键”,
“92”:“右窗键”,
“93”:“选择”,
“107”:“添加”,
“109”:“减法”,
“110”:“小数点”,
“111”:“分割”,
“112”:“f1”,
“113”:“f2”,
“114”:“f3”,
“115”:“f4”,
“116”:“f5”,
“117”:“f6”,
“118”:“f7”,
“119”:“f8”,
“120”:“f9”,
“121”:“f10”,
“122”:“f11”,
“123”:“f12”,
“144”:“numlock”,
“145”:“滚动锁”,
“186”:“分号”,
“187”:“相等符号”,
“188”:“逗号”,
“189”:“破折号”,
“190”:“期间”,
“191”:“斜杠”,
“192”:“graveacent”,
“220”:“反斜杠”,
“222”:“引用”
}
EditorInstance.on(“键控”,函数(编辑器,事件)
{
var__Cursor=editor.getDoc().getCursor();
var\uuu Token=editor.getTokenAt(\uu游标);
如果(!editor.state.completionActive&&
!ExcludedIntelliSenseTriggerKeys[(event.keyCode | | event.which).toString()]&&
(|u-Token.type==“tag”|| | u-Token.string==“| | | u-Token.string==”让我来分享一个完整的示例,其中包含任何键控后的自动完成(对于配置单元sql):
包括脚本和样式:
<link rel="stylesheet" href="/static/codemirror/lib/codemirror.css">
<link rel="stylesheet" href="/static/codemirror/theme/material.css">
<link rel="stylesheet" href="/static/codemirror/addon/hint/show-hint.css" />
<script type="text/javascript" src="/static/codemirror/lib/CodeMirror.js"></script>
<script type="text/javascript" src="/static/codemirror/mode/sql/sql.js"></script>
<script type="text/javascript" src="/static/codemirror/addon/hint/show-hint.js"></script>
<script type="text/javascript" src="/static/codemirror/addon/hint/sql-hint.js"></script>
Html:
<textarea id="code" name="code" rows="4" placeholder="" value=""></textarea>
脚本:
<script>
$(function () {
initSqlEditor();
initAutoComplete();
});
// init sql editor
function initSqlEditor() {
var editor = CodeMirror.fromTextArea(document.getElementById('code'), {
autofocus: true,
extraKeys: {
"Tab": "autocomplete"
},
hint: CodeMirror.hint.sql,
lineNumbers: true,
mode: 'text/x-hive',
lineWrapping: true,
theme: 'material',
});
editor.on('keyup', function(editor, event){
// type code and show autocomplete hint in the meanwhile
CodeMirror.commands.autocomplete(editor);
});
}
/**
* Init autocomplete for table name and column names in table.
*/
function initAutoComplete() {
CodeMirror.commands.autocomplete = function (cmeditor) {
CodeMirror.showHint(cmeditor, CodeMirror.hint.sql, {
// "completeSingle: false" prevents case when you are typing some word
// and in the middle it is automatically completed and you continue typing by reflex.
// So user will always need to select the intended string
// from popup (even if it's single option). (copy from @Oleksandr Pshenychnyy)
completeSingle: false,
// there are 2 ways to autocomplete field name:
// (1) table_name.field_name (2) field_name
// Put field name in table names to autocomplete directly
// no need to type table name first.
tables: {
"table1": ["col_A", "col_B", "col_C"],
"table2": ["other_columns1", "other_columns2"],
"col_A": [],
"col_B": [],
"col_C": [],
"other_columns1": [],
"other_columns2": [],
}
});
}
}
</script>
$(函数(){
initSqlEditor();
initAutoComplete();
});
//初始化sql编辑器
函数initSqlEditor(){
var editor=CodeMirror.fromTextArea(document.getElementById('code'){
自动对焦:对,
外键:{
“选项卡”:“自动完成”
},
提示:CodeMirror.hint.sql,
行号:对,
模式:“文本/x-hive”,
换行:对,
主题:"材料",,
});
on('keyup',函数(编辑器,事件){
//同时键入代码并显示自动完成提示
CodeMirror.commands.autocomplete(编辑器);
});
}
/**
*表名和表中列名的初始化自动完成。
*/
函数initAutoComplete(){
CodeMirror.commands.autocomplete=函数(cmeditor){
CodeMirror.showHint(cmeditor,CodeMirror.hint.sql{
//“completeSingle:false”可防止键入某个单词时出现大小写
在中间,它自动完成,然后继续按反射进行打字。
//所以用户总是需要选择想要的字符串
//从弹出窗口(即使是单个选项)。(从@Oleksandr Pshenychnyy复制)
完全单一:错误,
//有两种方法可以自动完成字段名:
//(1)表名称.字段名称(2)字段名称
//将字段名放在表名中以直接自动完成
//不需要先键入表名。
表:{
“表1”:[“A列”、“B列”、“C列”],
“表2”:[“其他栏1”、“其他栏2”],
“col_A”:[],
“col_B”:[],
“col_C”:[],
“其他专栏1”:[],
“其他专栏2”:[],
}
});
}
}
稍微改变了Oleksandr Pshenychnyy的答案(请参阅),因为我还不能添加注释
下面的代码只允许在按下字母键时自动完成(可能是您在任何键上想要的)
editor.on(“键控”,函数(cm,事件){
如果(!cm.state.completionActive&&/*在自动完成列表中启用键盘导航*/
event.keyCode>64&&event.keyCode<91){//仅当按下字母键时
CodeMirror.commands.autocomplete(cm,null,{completeSingle:false});
}
});
(这在逻辑上应该是可行的,但如果可行的话,请一些人评论一下!)我认为每个人都有自己的用例。我还必须从不同的答案中拼凑出最适合我的部分
据我所说,我只想对al提出建议
<textarea id="code" name="code" rows="4" placeholder="" value=""></textarea>
<script>
$(function () {
initSqlEditor();
initAutoComplete();
});
// init sql editor
function initSqlEditor() {
var editor = CodeMirror.fromTextArea(document.getElementById('code'), {
autofocus: true,
extraKeys: {
"Tab": "autocomplete"
},
hint: CodeMirror.hint.sql,
lineNumbers: true,
mode: 'text/x-hive',
lineWrapping: true,
theme: 'material',
});
editor.on('keyup', function(editor, event){
// type code and show autocomplete hint in the meanwhile
CodeMirror.commands.autocomplete(editor);
});
}
/**
* Init autocomplete for table name and column names in table.
*/
function initAutoComplete() {
CodeMirror.commands.autocomplete = function (cmeditor) {
CodeMirror.showHint(cmeditor, CodeMirror.hint.sql, {
// "completeSingle: false" prevents case when you are typing some word
// and in the middle it is automatically completed and you continue typing by reflex.
// So user will always need to select the intended string
// from popup (even if it's single option). (copy from @Oleksandr Pshenychnyy)
completeSingle: false,
// there are 2 ways to autocomplete field name:
// (1) table_name.field_name (2) field_name
// Put field name in table names to autocomplete directly
// no need to type table name first.
tables: {
"table1": ["col_A", "col_B", "col_C"],
"table2": ["other_columns1", "other_columns2"],
"col_A": [],
"col_B": [],
"col_C": [],
"other_columns1": [],
"other_columns2": [],
}
});
}
}
</script>
editor.on("keyup", function (cm, event) {
if (!cm.state.completionActive && /*Enables keyboard navigation in autocomplete list*/
event.keyCode > 64 && event.keyCode < 91){// only when a letter key is pressed
CodeMirror.commands.autocomplete(cm, null, {completeSingle: false});
}
});
activeEditor.on("keydown", function (cm, event) {
if (
!(event.ctrlKey) &&
(event.keyCode >= 65 && event.keyCode <= 90) ||
(event.keyCode >= 97 && event.keyCode <= 122) ||
(event.keyCode >= 46 && event.keyCode <= 57)
) {
CodeMirror.commands.autocomplete(cm, null, {completeSingle: false});
}
});
editor.on("inputRead", function(instance) {
if (instance.state.completionActive) {
return;
}
var cur = instance.getCursor();
var token = instance.getTokenAt(cur);
if (token.type && token.type != "comment") {
CodeMirror.commands.autocomplete(instance);
}
});
editor.on('change', (cm, event) => {
editor.execCommand('autocomplete');
});