postfast_attach.js

论坛软件系统亦称电子公告板(BBS)系统

/*
	[JspRun!] (C)2007-2009 JspRun Inc.
	This is NOT a freeware, use is subject to license terms

	$RCSfile: postfast_attach.js,v $
	$Revision: 1.2 $
	$Date: 2008/11/11 06:16:21 $
*/
		lang['post_attachment_ext_notallowed']	= '对不起，不支持上传此类扩展名的附件。';
		lang['post_attachment_img_invalid']	= '无效的图片文件。';
		lang['post_attachment_deletelink']	= '删除';
		lang['post_attachment_insert']		= '点击这里将本附件插入帖子内容中当前光标的位置';
		lang['post_attachment_insertlink']	= '插入';
		var aid = 1;
var attachexts = new Array();
var attachwh = new Array();

function delAttach(id) {
	$('attachbody').removeChild($('attach_' + id).parentNode.parentNode);
	$('attachbody').innerHTML == '' && addAttach();
	$('localimgpreview_' + id + '_menu') ? document.body.removeChild($('localimgpreview_' + id + '_menu')) : null;
}

function addAttach() {
	newnode = $('attachbodyhidden').firstChild.cloneNode(true);
	var id = aid;
	var tags;
	tags = newnode.getElementsByTagName('input');
	for(i in tags) {
		if(tags[i].name == 'attach[]') {
			tags[i].id = 'attach_' + id;
			tags[i].onchange = function() {insertAttach(id)};
			tags[i].unselectable = 'on';
		}
		if(tags[i].name == 'localid[]') {
			tags[i].value = id;
		}
	}
	tags = newnode.getElementsByTagName('span');
	for(i in tags) {
		if(tags[i].id == 'localfile[]') {
			tags[i].id = 'localfile_' + id;
		}
	}
	aid++;
	$('attachbody').appendChild(newnode);
}

addAttach();

function insertAttach(id) {
	var localimgpreview = '';
	var path = $('attach_' + id).value;
	var ext = path.lastIndexOf('.') == -1 ? '' : path.substr(path.lastIndexOf('.') + 1, path.length).toLowerCase();
	var re = new RegExp("(^|\\s|,)" + ext + "($|\\s|,)", "ig");
	var localfile = $('attach_' + id).value.substr($('attach_' + id).value.replace(/\\/g, '/').lastIndexOf('/') + 1);

	if(path == '') {
		return;
	}
	if(extensions != '' && (re.exec(extensions) == null || ext == '')) {
		alert(lang['post_attachment_ext_notallowed']);
		return;
	}
	attachexts[id] = is_ie && in_array(ext, ['gif', 'jpg', 'png', 'bmp']) && typeof supe == 'undefined' ? 2 : 1;
	$('localfile_' + id).innerHTML = '<a href="###delAttach" onclick="delAttach(' + id + ')">[' + lang['post_attachment_deletelink'] + ']</a> <a href="###insertAttach" title="' + lang['post_attachment_insert'] + '" onclick="insertAttachtext(' + id + ');return false;">[' + lang['post_attachment_insertlink'] + ']</a> ' +
		(attachexts[id] == 2 ? '<span id="localimgpreview_' + id + '" onmouseover="showMenu(this.id, 0, 0, 1, 0)"> <span class="smalltxt">[' +id + ']</span> <a href="###attachment" onclick="insertAttachtext(' + id + ');return false;">' + localfile + '</a></span>' : '<span class="smalltxt">[' + id + ']</span> ' + localfile);
	if(!is_ie){
		$('attach_' + id).type="text";
		$('attach_' + id).value=path;
	}
	$('attach_' + id).style.display = 'none';
	addAttach();
}
function insertAttachtext(id) {
	if(!attachexts[id]) {
		return;
	}
	if(attachexts[id] == 2) {
		AddText('[local]' + id + '[/local]');
	} else {
		AddText('[local]' + id + '[/local]');
	}
}
function AddText(txt) {
	obj = $('postform').message;
	selection = document.selection;
	checkFocus();
	if(!isUndefined(obj.selectionStart)) {
		var opn = obj.selectionStart + 0;
		obj.value = obj.value.substr(0, obj.selectionStart) + txt + obj.value.substr(obj.selectionEnd);
	} else if(selection && selection.createRange) {
		var sel = selection.createRange();
		sel.text = txt;
		sel.moveStart('character', -strlen(txt));
	} else {
		obj.value += txt;
	}
}