項目需求:客服聊天系統須要可粘貼圖片發送功能;html
html頁面:htm
設置一個可編輯的div圖片
<div id="editor" class="texter" tabindex="0" contenteditable="true" onpaste="return pasteListener(event, true)"></div>ip
jq代碼:get
function pasteListener(event, isLimit) {
$.each(event.clipboardData.items, function(index, item) {
if(item.kind == "file" && item.type.match("image/*")) {
var file = item.getAsFile();
if(isLimit && file.size > 2 * 1024 * 1024) {
parent.index.layers("msg", "粘貼的圖片內容過大,最大支持爲2M。");
return true;
}
var fileReader = new FileReader();
fileReader.onload = function(event) {
var img = "<img src='" + event.target.result + "' style='" + (isLimit ? "width:200px;" : "") + "'" + (isLimit ? "" : "") + ">";
var selection = window.getSelection();
var range = selection.getRangeAt(0);
range.insertNode($(img)[0]);
selection.anchorOffset = selection.focusOffset;
selection.collapseToEnd();
}
fileReader.readAsDataURL(file);
} else if(item.kind == "string" && item.type.match("text/plain")) {
item.getAsString(function(str) {
var selection = window.getSelection();
var range = selection.getRangeAt(0);
range.insertNode(new Text(str));
selection.anchorOffset = selection.focusOffset;
selection.collapseToEnd();
});
}
});
return false;
}string