使用 javascript 在插入符号处插入,但只能在某个 class 范围内
Insert at caret with javascript, but only within a certain class
我正在使用由 The Great and Powerful Oz Tim Down 编写的一些 javascript,它在插入符号处插入内容。它工作得很好,但我如何限制该函数仅在 div 中运行,class 名称为 "editor-text"?
编辑:它还必须在 .editor-text div.
中的其他元素(例如 H1)中工作
Edit2:还必须在新行上工作。参见 http://jsfiddle.net/j5mv219L/
现场演示: http://jsfiddle.net/wfo7gcvh/
代码:
function pasteHtmlAtCaret(html) {
var sel, range;
if (window.getSelection) {
// IE9 and non-IE
sel = window.getSelection();
if (sel.getRangeAt && sel.rangeCount) {
range = sel.getRangeAt(0);
range.deleteContents();
// Range.createContextualFragment() would be useful here but is
// non-standard and not supported in all browsers (IE9, for one)
var el = document.createElement("div");
el.innerHTML = html;
var frag = document.createDocumentFragment(),
node, lastNode;
while ((node = el.firstChild)) {
lastNode = frag.appendChild(node);
}
range.insertNode(frag);
// Preserve the selection
if (lastNode) {
range = range.cloneRange();
range.setStartAfter(lastNode);
range.collapse(true);
sel.removeAllRanges();
sel.addRange(range);
}
}
} else if (document.selection && document.selection.type != "Control") {
// IE < 9
document.selection.createRange().pasteHTML(html);
}
}
您可以获得具有选择的节点,并检查它是否具有 class 或者是具有 class 等
的元素的子元素
function pasteHtmlAtCaret(html, selector) {
var sel, range, parent, node = null;
if (document.selection) {
node = document.selection.createRange().parentElement();
} else {
var selection = window.getSelection();
if (selection.rangeCount > 0) {
node = selection.getRangeAt(0).startContainer;
if (node !== $(node).closest(selector).get(0)) {
node = node.parentNode;
}
}
}
if (node && $(node).closest(selector).length > 0 && window.getSelection) {
sel = window.getSelection();
if (sel.getRangeAt && sel.rangeCount) {
range = sel.getRangeAt(0);
range.deleteContents();
var el = document.createElement("div");
el.innerHTML = html;
var frag = document.createDocumentFragment(),
node, lastNode;
while ((node = el.firstChild)) {
lastNode = frag.appendChild(node);
}
range.insertNode(frag);
if (lastNode) {
range = range.cloneRange();
range.setStartAfter(lastNode);
range.collapse(true);
sel.removeAllRanges();
sel.addRange(range);
}
}
} else if (document.selection && document.selection.type != "Control") {
document.selection.createRange().pasteHTML(html);
}
}
我正在使用由 The Great and Powerful Oz Tim Down 编写的一些 javascript,它在插入符号处插入内容。它工作得很好,但我如何限制该函数仅在 div 中运行,class 名称为 "editor-text"?
编辑:它还必须在 .editor-text div.
中的其他元素(例如 H1)中工作Edit2:还必须在新行上工作。参见 http://jsfiddle.net/j5mv219L/
现场演示: http://jsfiddle.net/wfo7gcvh/
代码:
function pasteHtmlAtCaret(html) {
var sel, range;
if (window.getSelection) {
// IE9 and non-IE
sel = window.getSelection();
if (sel.getRangeAt && sel.rangeCount) {
range = sel.getRangeAt(0);
range.deleteContents();
// Range.createContextualFragment() would be useful here but is
// non-standard and not supported in all browsers (IE9, for one)
var el = document.createElement("div");
el.innerHTML = html;
var frag = document.createDocumentFragment(),
node, lastNode;
while ((node = el.firstChild)) {
lastNode = frag.appendChild(node);
}
range.insertNode(frag);
// Preserve the selection
if (lastNode) {
range = range.cloneRange();
range.setStartAfter(lastNode);
range.collapse(true);
sel.removeAllRanges();
sel.addRange(range);
}
}
} else if (document.selection && document.selection.type != "Control") {
// IE < 9
document.selection.createRange().pasteHTML(html);
}
}
您可以获得具有选择的节点,并检查它是否具有 class 或者是具有 class 等
的元素的子元素function pasteHtmlAtCaret(html, selector) {
var sel, range, parent, node = null;
if (document.selection) {
node = document.selection.createRange().parentElement();
} else {
var selection = window.getSelection();
if (selection.rangeCount > 0) {
node = selection.getRangeAt(0).startContainer;
if (node !== $(node).closest(selector).get(0)) {
node = node.parentNode;
}
}
}
if (node && $(node).closest(selector).length > 0 && window.getSelection) {
sel = window.getSelection();
if (sel.getRangeAt && sel.rangeCount) {
range = sel.getRangeAt(0);
range.deleteContents();
var el = document.createElement("div");
el.innerHTML = html;
var frag = document.createDocumentFragment(),
node, lastNode;
while ((node = el.firstChild)) {
lastNode = frag.appendChild(node);
}
range.insertNode(frag);
if (lastNode) {
range = range.cloneRange();
range.setStartAfter(lastNode);
range.collapse(true);
sel.removeAllRanges();
sel.addRange(range);
}
}
} else if (document.selection && document.selection.type != "Control") {
document.selection.createRange().pasteHTML(html);
}
}