Javascript 使用热键更改文本的大小写(如MS Word中的Shift+;F3)
我正在使用tinymce插件&我正在尝试在一个热键上做一个更改字母大小写功能,就像在MS Word(shift+f3)中一样 我已经成功地通过选择来做到这一点,但即使没有选择单词,MS Word也可以工作 它获取光标的当前位置,在该位置分离出一个单词,并将功能应用于该单词。tinymce也需要同样的 到目前为止,我有:Javascript 使用热键更改文本的大小写(如MS Word中的Shift+;F3),javascript,tinymce,Javascript,Tinymce,我正在使用tinymce插件&我正在尝试在一个热键上做一个更改字母大小写功能,就像在MS Word(shift+f3)中一样 我已经成功地通过选择来做到这一点,但即使没有选择单词,MS Word也可以工作 它获取光标的当前位置,在该位置分离出一个单词,并将功能应用于该单词。tinymce也需要同样的 到目前为止,我有: editor.addShortcut("ctrl+e", "ll", function () { var sel = editor.dom.decode(editor.s
editor.addShortcut("ctrl+e", "ll", function () {
var sel = editor.dom.decode(editor.selection.getContent());
if (/^[a-zа-я]+$/g.test(sel)) {
sel = sel.substr(0, 1).toUpperCase() + sel.substr(1);
}
else if (/^[А-ЯA-Z]+$/g.test(sel)) {
sel = sel.toLowerCase();
}
else {
sel = sel.toUpperCase();
}
editor.selection.setContent(sel);
console.log(editor.selection);
editor.save();
editor.isNotDirty = true;
});
资料来源:
小提琴:以下代码可能会给出您想要的结果。它应该在以下情况下工作:
- 已完全选择一个或多个单词
- 部分选择了一个或多个单词
- 未选择任何文本
- 所选文本属于多个段落
- 在单词中设置了各种文本属性
tinymce.init({
选择器:“文本区域”,
插件:[
“advlist autolink列出链接图像charmap打印预览锚”,
“searchreplace visualblocks代码全屏显示”,
“insertdatetime媒体表上下文菜单粘贴”
],
工具栏:“插入文件撤消重做|样式选择|粗体斜体|对齐左对齐中心对齐右对齐对齐对齐|粗体numlist outdent缩进|链接图像”,
设置:函数(编辑器){
editor.addShortcut(“ctrl+e”、“ll”、函数(){
var isWordChar=函数(chr){
返回/\w/.test(chr);
};
var isTextNode=函数(节点){
return node.nodeType==3;
};
var getAllTextNodes=函数(结果,节点){
if(isTextNode(node)){
结果:推送(节点);
}
else if(node.childNodes){
如果(node.tagName==“P”){
结果:推送(节点);
}
var children=node.childNodes;
对于(变量i=0;i=0&&!found;i--)
{
node=textNodes[i];
if(isTextNode(node)){
wordStartNodeIndex=i;
lastCharIndex=node.textContent.length-1;
wordStartOffset=Math.max(0,Math.min(lastCharIndex,node==selStartChildNode?selStartOffset-1:lastCharIndex));
对于(;wordStartOffset>=0;wordStartOffset--){
chr=node.textContent[wordStartOffset];
if(isWordChar(chr)){
wordTextContent=chr+wordTextContent;
}否则{
发现=真;
打破
}
}
}否则{
发现=真;
打破
}
}
wordStartOffset=Math.max(0,wordStartOffset);
var endNodeFound=false;
var pastEndNode=false;
var isAfterSelection=false;
发现=错误;
//查找最后一个选定单词的结尾
对于(i=selStartNodeIndex;i=selEndOffset-(iscollected?0:1));
if(isWordChar(chr)| |!isAfterSelection){
wordTextContent=wordTextContent+chr;
}否则{
发现=真;
打破
}
}
}else if(粘贴节点){
发现=真;
打破
}
}
//确定要应用的案例样式
var caseMode='';
如果(/^([a-z0-9]|\W)+$/g.test(wordTextContent)){
caseMode=‘大写单词’;
}
否则如果(/^([A-Z0-9]|\W)+$/g.test(wordTextContent)){
caseMode='小写';
}
否则{
caseMode='大写';
}
var startCharIndex、endCharIndex、currentIsWordChar;
var prevIsWordChar=false;
var内容=“”;
//应用程序
editor.selection.getRng().startOffset returns the cursor position
tinymce.init({
selector: "textarea",
plugins: [
"advlist autolink lists link image charmap print preview anchor",
"searchreplace visualblocks code fullscreen",
"insertdatetime media table contextmenu paste"
],
toolbar: "insertfile undo redo | styleselect | bold italic | alignleft aligncenter alignright alignjustify | bullist numlist outdent indent | link image",
setup: function (editor) {
editor.addShortcut("ctrl+e", "ll", function () {
var isWordChar = function (chr) {
return /\w/.test(chr);
};
var isTextNode = function (node) {
return node.nodeType == 3;
};
var getAllTextNodes = function (result, node) {
if (isTextNode(node)) {
result.push(node);
}
else if (node.childNodes) {
if (node.tagName == 'P') {
result.push(node);
}
var children = node.childNodes;
for (var i = 0; i < children.length; i++) {
getAllTextNodes(result, children[i]);
}
}
return result;
}
// Get current selection parameters
var range = editor.selection.getRng();
var isCollapsed = editor.selection.isCollapsed();
var selStartChildNode = range.startContainer;
var selEndChildNode = range.endContainer;
var selStartOffset = range.startOffset;
var selEndOffset = range.endOffset;
// Retrieve all the text nodes in the editor
var textNodes = [];
getAllTextNodes(textNodes, editor.dom.getRoot());
var selStartNodeIndex = textNodes.indexOf(selStartChildNode);
var selEndNodeIndex = textNodes.indexOf(selEndChildNode);
var wordStartNodeIndex, wordEndNodeIndex;
var wordStartOffset, wordEndOffset;
var wordTextContent = '';
var found = false;
var node, chr, lastCharIndex;
var i, j;
// Find the start of the first selected word
for (i = selStartNodeIndex; i >= 0 && !found; i--)
{
node = textNodes[i];
if (isTextNode(node)) {
wordStartNodeIndex = i;
lastCharIndex = node.textContent.length - 1;
wordStartOffset = Math.max(0, Math.min(lastCharIndex, node == selStartChildNode ? selStartOffset - 1 : lastCharIndex));
for (; wordStartOffset >= 0; wordStartOffset--) {
chr = node.textContent[wordStartOffset];
if (isWordChar(chr)) {
wordTextContent = chr + wordTextContent;
} else {
found = true;
break;
}
}
} else {
found = true;
break;
}
}
wordStartOffset = Math.max(0, wordStartOffset);
var endNodeFound = false;
var pastEndNode = false;
var isAfterSelection = false;
found = false;
// Find the end of the last selected word
for (i = selStartNodeIndex; i < textNodes.length && !found; i++) {
node = textNodes[i];
pastEndNode = endNodeFound;
if (isTextNode(node)) {
wordEndNodeIndex = i;
wordEndOffset = Math.min(node == selStartChildNode ? selStartOffset : 0, node.textContent.length - 1);
endNodeFound = endNodeFound || node == selEndChildNode;
for (; wordEndOffset < node.textContent.length; wordEndOffset++) {
chr = node.textContent[wordEndOffset];
isAfterSelection = pastEndNode || (endNodeFound && wordEndOffset >= selEndOffset - (isCollapsed ? 0 : 1));
if (isWordChar(chr) || !isAfterSelection) {
wordTextContent = wordTextContent + chr;
} else {
found = true;
break;
}
}
} else if (pastEndNode) {
found = true;
break;
}
}
// Determine the case style to be applied
var caseMode = '';
if (/^([a-z0-9]|\W)+$/g.test(wordTextContent)) {
caseMode = 'CapitalizeWords';
}
else if (/^([A-Z0-9]|\W)+$/g.test(wordTextContent)) {
caseMode = 'LowerCase';
}
else {
caseMode = 'UpperCase';
}
var startCharIndex, endCharIndex, currentIsWordChar;
var prevIsWordChar = false;
var content = '';
// Apply the new case style to the selected nodes
for (i = wordStartNodeIndex; i <= wordEndNodeIndex; i++) {
node = textNodes[i];
if (isTextNode(node)) {
startCharIndex = (i == wordStartNodeIndex ? wordStartOffset : 0);
endCharIndex = (i == wordEndNodeIndex ? wordEndOffset : node.textContent.length);
content = node.textContent.substring(0, startCharIndex);
switch (caseMode) {
case 'CapitalizeWords':
for (j = startCharIndex; j < endCharIndex; j++) {
chr = node.textContent[j];
currentIsWordChar = /\w/.test(chr);
content += (currentIsWordChar && !prevIsWordChar ? chr.toUpperCase() : chr);
prevIsWordChar = currentIsWordChar;
}
break;
case 'LowerCase':
content += node.textContent.substring(startCharIndex, endCharIndex).toLowerCase();
break;
case 'UpperCase':
content += node.textContent.substring(startCharIndex, endCharIndex).toUpperCase();
break;
}
content += node.textContent.substring(endCharIndex);
node.textContent = content;
} else {
prevIsWordChar = false;
}
}
// Restore the selection range
range.setStart(selStartChildNode, selStartOffset);
range.setEnd(selEndChildNode, selEndOffset);
editor.selection.setRng(range);
editor.save();
editor.isNotDirty = true;
});
}
});