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input method in browser based on baidu online input method.
// ==UserScript==
// @name baiduCloudInput
// @name:zh-CN 百度云输入法
// @namespace baiduIME@reverland.org
// @description input method in browser based on baidu online input method.
// @description:zh-CN 在浏览器中自由使用百度在线输入法
// @include *
// @version 1.2
// @grant GM_xmlhttpRequest
// ==/UserScript==
//
// DONE:
// : 弹窗相对于body的位置
// : 插入词而不是在结束时附加
// : 最上层！！
// : ff/chromium兼容
//
// TODO: CHIANFIND_RES特性
// TODO: 边沿检测特性
// TODO: 完善中文标点
//
// `+/-` 翻页
// `Space/1/2/3/4/5` 选词
// `Shift` 全角/半角逗号句号
//
document.body.addEventListener('keydown', configQuanjiao);
function configQuanjiao(e) {
if (e.which == 16) {
IME.quanjiao = !IME.quanjiao;
console.log(e);
e.preventDefault();
}
}
var IME = {
status: 'hidden',
output: '',
inputString: '',
TEXTS: [],
page: 0,
quanjiao: true,
}
setTimeout(function() {
var tts = document.getElementsByTagName("textarea");
for(var i = 0; i < tts.length; i++) {
initIME(tts[i]);
}
var tts = document.getElementsByTagName("input");
for(var i = 0; i < tts.length; i++) {
initIME(tts[i]);
}
}, 2000); // 为了等待文本框装载进DOM
function initIME(tt) {
console.log("[DEBUG]", tt);
var imePop = document.createElement('div');
initImePop();
tt.addEventListener('keydown', checkNonCharacter);
tt.addEventListener('keyup', reqAndRefresh);
tt.addEventListener('keypress', intercept);
function checkNonCharacter(e) {
if (IME.status == 'POPUP') {
switch (String.fromCharCode(e.which)) {
case String.fromCharCode(8):
e.preventDefault();
IME.inputString = IME.inputString.substr(0, IME.inputString.length - 1);
if (IME.inputString.length == 0) {
IME.status = 'hidden';
showImePop(false);
}
break;
case String.fromCharCode(13):
e.preventDefault();
var curStart = tt.selectionStart;
var curEnd = tt.selectionEnd;
tt.value = tt.value.substring(0, curStart) + IME.inputString + tt.value.substring(curEnd, tt.value.length);
tt.selectionStart = curStart + IME.inputString.length;
tt.selectionEnd = curStart + IME.inputString.length;
IME.inputString = "";
IME.status = 'hidden';
showImePop(false);
break;
}
}
imePop.querySelector('p').innerHTML = IME.inputString;
}
function reqAndRefresh(e) {
imePop.querySelector('p').innerHTML = IME.inputString;
// reconize key finish
// console.log("[IME.inputString] ", IME.inputString);
var p = new Promise(function(resolve, reject) {
var ret = GM_xmlhttpRequest({
method: "GET",
url: `http://olime.baidu.com/py?input=${IME.inputString}&inputtype=py&bg=0&ed=100&result=hanzi&resultcoding=unicode&ch_en=0&clientinfo=web&version=1`,
onload: function(res) {
//console.log("[DEBUG connect]")
resolve(res.responseText);
}
})
});
p.then(parseJSON).then(parseRes, printError);
}
function initImePop() {
imePop.setAttribute('id', 'baidu-cloud-input-imePop');
imePop.style.position = "absolute";
imePop.style.width = "300px";
//imePop.style.height = "80px";
imePop.style.background = "lightblue";
imePop.style.borderRadius = "5px";
imePop.style.display = "none";
imePop.style.boxShadow = "0 0 3px 0px black"
imePop.style.zIndex = "9999999";
var echo = document.createElement('p');
echo.style.height = "1.5em"; //只为防止抖动
echo.style.lineHeight = "1.5em";
echo.style.fontSize = "1em";
echo.style.margin = "0";
echo.style.padding = "0";
echo.style.paddingLeft = "0.5em";
echo.style.color = "darkblue";
echo.style.fontStyle = "bold";
imePop.appendChild(echo);
var tips = document.createElement('ol');
tips.style.margin = "0px";
tips.style.padding = "0px";
tips.style.color = "black";
var tip = [];
for (var i = 0; i < 5; i++) {
tip[i] = document.createElement('li');
tip[i].style.margin = "0px";
tip[i].style.padding = "0px";
tip[i].style.marginLeft = "2em";
tip[i].style.listStyleType = "decimal";
tips.appendChild(tip[i]);
}
document.body.appendChild(imePop);
var hr = document.createElement('hr')
hr.style.marginTop = "0";
hr.style.marginBottom = "0.2em"
hr.style.color = "grey";
imePop.appendChild(hr);
imePop.appendChild(tips);
}
function showImePop(state) {
if (state) {
var coordinates = getCaretCoordinates(tt, tt.selectionEnd);
var textAreaTop = findPos(tt)[1] + 20;
var textAreaLeft = findPos(tt)[0];
imePop.style.left = textAreaLeft + coordinates.left + "px";
imePop.style.top = textAreaTop -tt.scrollTop + coordinates.top + "px";
imePop.style.display = "block";
} else {
imePop.style.display = 'none';
}
}
function findPos(obj) {
var curleft = curtop = 0;
if (obj.offsetParent) {
do {
curleft += obj.offsetLeft;
curtop += obj.offsetTop;
} while (obj = obj.offsetParent);
}
return [curleft,curtop];
}
function intercept(e){
// control keys
if (e.ctrlKey) {
return;
}
if (IME.status == 'POPUP') {
switch (String.fromCharCode(e.which)) {
case " ":
case "1":
case "2":
case "3":
case "4":
case "5":
e.preventDefault();
var index = String.fromCharCode(e.which) == " "?0:parseInt(String.fromCharCode(e.which)) - 1;
console.log(index);
var curStart = tt.selectionStart;
var curEnd = tt.selectionEnd;
var selectedText = imePop.querySelector('ol').children[index].textContent;
tt.value = tt.value.substring(0, curStart) + selectedText + tt.value.substring(curEnd, tt.value.length);
tt.selectionStart = curStart + selectedText.length;
tt.selectionEnd = curStart + selectedText.length;
IME.inputString = "";
IME.status = 'hidden';
showImePop(false);
break;
case "a":
case "b":
case "c":
case "d":
case "e":
case "f":
case "g":
case "h":
case "i":
case "j":
case "k":
case "l":
case "m":
case "n":
case "o":
case "p":
case "q":
case "r":
case "s":
case "t":
case "u":
case "v":
case "w":
case "x":
case "y":
case "z":
case "'":
e.preventDefault();
IME.inputString += String.fromCharCode(e.which);
break;
// {
case "=":
e.preventDefault();
IME.page += 1;
//console.log("[DEBUG]", IME.page);
if (IME.page < IME.TEXTS.length / 5) {
updateList(IME.page);
} else {
IME.page -= 1;
}
return;
case "-":
e.preventDefault();
IME.page = IME.page == 0?IME.page:IME.page - 1;
//console.log("[DEBUG]", IME.page);
updateList(IME.page);
return;
// }
default:
e.preventDefault();
}
} else if (IME.status == 'hidden') {
switch (String.fromCharCode(e.which)) {
case ",":
if (IME.quanjiao) {
e.preventDefault();
var curStart = tt.selectionStart;
var curEnd = tt.selectionEnd;
tt.value = tt.value.substring(0, curStart) + '，' + tt.value.substring(curEnd, tt.value.length);
tt.selectionStart = curStart + '，'.length;
tt.selectionEnd = curStart + '，'.length;
return;
}
break;
case ".":
if (IME.quanjiao) {
e.preventDefault();
var curStart = tt.selectionStart;
var curEnd = tt.selectionEnd;
tt.value = tt.value.substring(0, curStart) + '。' + tt.value.substring(curEnd, tt.value.length);
tt.selectionStart = curStart + '。'.length;
tt.selectionEnd = curStart + '。'.length;
return;
}
break;
case "a":
case "b":
case "c":
case "d":
case "e":
case "f":
case "g":
case "h":
case "i":
case "j":
case "k":
case "l":
case "m":
case "n":
case "o":
case "p":
case "q":
case "r":
case "s":
case "t":
case "u":
case "v":
case "w":
case "x":
case "y":
case "z":
case "'":
e.preventDefault();
if (IME.inputString.length == 0) {
IME.inputString += String.fromCharCode(e.which);
IME.status = 'POPUP';
showImePop(true);
}
IME.page = 0;
break;
default:
void(0);
}
}
};
function printError(err) {
console.log(err);
};
function parseRes(resObj) {
// console.log("[resObj]", resObj);
if (resObj['errno'] != 0) {
return;
}
var text = resObj['result'][0];
// console.log("[text]", text[0][0])
for (var i = 0; i < text.length; i++) {
IME.TEXTS[i] = text[i][0];
}
updateList(IME.page);
}
function updateList(page) {
for (var i = 0; i < 5; i++) {
imePop.querySelector('ol').children[i].innerHTML = IME.TEXTS[page * 5 + i];
if (page * 5 + i >= IME.TEXTS.length) {
imePop.querySelector('ol').children[i].innerHTML = "--"
}
}
}
function parseJSON(text) {
// console.log("JSON response from baidu: ", text);
var resObj = JSON.parse(text);
return resObj;
}
// this function comes from https://github.com/component/textarea-caret-position/blob/master/index.js
function getCaretCoordinates(element, position) {
var properties = [
'direction', // RTL support
'boxSizing',
'width', // on Chrome and IE, exclude the scrollbar, so the mirror div wraps exactly as the textarea does
'height',
'overflowX',
'overflowY', // copy the scrollbar for IE
'borderTopWidth',
'borderRightWidth',
'borderBottomWidth',
'borderLeftWidth',
'borderStyle',
'paddingTop',
'paddingRight',
'paddingBottom',
'paddingLeft',
// https://developer.mozilla.org/en-US/docs/Web/CSS/font
'fontStyle',
'fontVariant',
'fontWeight',
'fontStretch',
'fontSize',
'fontSizeAdjust',
'lineHeight',
'fontFamily',
'textAlign',
'textTransform',
'textIndent',
'textDecoration', // might not make a difference, but better be safe
'letterSpacing',
'wordSpacing',
'tabSize',
'MozTabSize'
];
// mirrored div
var div = document.createElement('div');
div.id = 'input-textarea-caret-position-mirror-div';
document.body.appendChild(div);
var style = div.style;
var computed = window.getComputedStyle? getComputedStyle(element) : element.currentStyle; // currentStyle for IE < 9
// default textarea styles
style.whiteSpace = 'pre-wrap';
if (element.nodeName !== 'INPUT')
style.wordWrap = 'break-word'; // only for textarea-s
// position off-screen
style.position = 'absolute'; // required to return coordinates properly
style.visibility = 'hidden'; // not 'display: none' because we want rendering
// transfer the element's properties to the div
properties.forEach(function (prop) {
style[prop] = computed[prop];
});
var isFirefox = window.mozInnerScreenX != null;
if (isFirefox) {
// Firefox lies about the overflow property for textareas: https://bugzilla.mozilla.org/show_bug.cgi?id=984275
if (element.scrollHeight > parseInt(computed.height))
style.overflowY = 'scroll';
} else {
style.overflow = 'hidden'; // for Chrome to not render a scrollbar; IE keeps overflowY = 'scroll'
}
div.textContent = element.value.substring(0, position);
// the second special handling for input type="text" vs textarea: spaces need to be replaced with non-breaking spaces - http://stackoverflow.com/a/13402035/1269037
if (element.nodeName === 'INPUT')
div.textContent = div.textContent.replace(/\s/g, "\u00a0");
var span = document.createElement('span');
// Wrapping must be replicated *exactly*, including when a long word gets
// onto the next line, with whitespace at the end of the line before (#7).
// The *only* reliable way to do that is to copy the *entire* rest of the
// textarea's content into the <span> created at the caret position.
// for inputs, just '.' would be enough, but why bother?
span.textContent = element.value.substring(position) || '.'; // || because a completely empty faux span doesn't render at all
div.appendChild(span);
var coordinates = {
top: span.offsetTop + parseInt(computed['borderTopWidth']),
left: span.offsetLeft + parseInt(computed['borderLeftWidth'])
};
document.body.removeChild(div);
return coordinates;
}
}