DiscuzX/upload/uc_server/js/pm_editor.js

216 lines
7.1 KiB
JavaScript

var userAgent = navigator.userAgent.toLowerCase();
var is_opera = userAgent.indexOf('opera') != -1 && opera.version();
var is_moz = (navigator.product == 'Gecko') && userAgent.substr(userAgent.indexOf('firefox') + 8, 3);
var is_ie = (userAgent.indexOf('msie') != -1 && !is_opera) && userAgent.substr(userAgent.indexOf('msie') + 5, 3);
function isUndefined(variable) {
return typeof variable == 'undefined' ? true : false;
}
function $(id) {
return document.getElementById(id);
}
function fetchOffset(obj) {
var left_offset = obj.offsetLeft;
var top_offset = obj.offsetTop;
while((obj = obj.offsetParent) != null) {
left_offset += obj.offsetLeft;
top_offset += obj.offsetTop;
}
return { 'left' : left_offset, 'top' : top_offset };
}
function _attachEvent(obj, evt, func) {
if(obj.addEventListener) {
obj.addEventListener(evt, func, false);
} else if(obj.attachEvent) {
obj.attachEvent("on" + evt, func);
}
}
function strlen(str) {
return (is_ie && str.indexOf('\n') != -1) ? str.replace(/\r?\n/g, '_').length : str.length;
}
var menus = new menu_handler();
function menu_handler() {
this.menu = Array();
}
function menuitems() {
this.ctrlobj = null,
this.menuobj = null;
this.parentids = Array();
this.allowhide = 1;
this.hidelock = 0;
this.clickstatus = 0;
}
function menuobjpos(id, offset) {
if(!menus.menu[id]) {
return;
}
if(!offset) {
offset = 0;
}
var showobj = menus.menu[id].ctrlobj;
var menuobj = menus.menu[id].menuobj;
showobj.pos = fetchOffset(showobj);
showobj.X = showobj.pos['left'];
showobj.Y = showobj.pos['top'];
showobj.w = showobj.offsetWidth;
showobj.h = showobj.offsetHeight;
menuobj.w = menuobj.offsetWidth;
menuobj.h = menuobj.offsetHeight;
if(offset < 3) {
menuobj.style.left = (showobj.X + menuobj.w > document.body.clientWidth) && (showobj.X + showobj.w - menuobj.w >= 0) ? showobj.X + showobj.w - menuobj.w + 'px' : showobj.X + 'px';
menuobj.style.top = offset == 1 ? showobj.Y + 'px' : (offset == 2 || ((showobj.Y + showobj.h + menuobj.h > document.documentElement.scrollTop + document.documentElement.clientHeight) && (showobj.Y - menuobj.h >= 0)) ? (showobj.Y - menuobj.h) + 'px' : showobj.Y + showobj.h + 'px');
} else if(offset == 3) {
menuobj.style.left = (document.body.clientWidth - menuobj.clientWidth) / 2 + document.body.scrollLeft + 'px';
menuobj.style.top = (document.body.clientHeight - menuobj.clientHeight) / 2 + document.body.scrollTop + 'px';
} else if(offset == 4) {
menuobj.style.left = (showobj.X + menuobj.w > document.body.clientWidth) && (showobj.X + showobj.w - menuobj.w >= 0) ? showobj.X + showobj.w - menuobj.w + 'px' : showobj.X + showobj.w + 'px';
menuobj.style.top = showobj.Y + 'px';
}
if(menuobj.style.clip && !is_opera) {
menuobj.style.clip = 'rect(auto, auto, auto, auto)';
}
}
function showmenu(event, id, click, position) {
if(isUndefined(click)) click = false;
if(!menus.menu[id]) {
menus.menu[id] = new menuitems();
menus.menu[id].ctrlobj = $(id);
if(!menus.menu[id].ctrlobj.getAttribute('parentmenu')) {
menus.menu[id].parentids = Array();
} else {
menus.menu[id].parentids = menus.menu[id].ctrlobj.getAttribute('parentmenu').split(',');
}
menus.menu[id].menuobj = $(id + '_menu');
menus.menu[id].menuobj.style.position = 'absolute';
if(event.type == 'mouseover') {
_attachEvent(menus.menu[id].ctrlobj, 'mouseout', function() { setTimeout(function() {hidemenu(id)}, 100); });
_attachEvent(menus.menu[id].menuobj, 'mouseover', function() { lockmenu(id, 0); });
_attachEvent(menus.menu[id].menuobj, 'mouseout', function() { lockmenu(id, 1);setTimeout(function() {hidemenu(id)}, 100); });
} else if(click || event.type == 'click') {
menus.menu[id].clickstatus = 1;
lockmenu(id, 0);
}
} else if(menus.menu[id].clickstatus == 1) {
lockmenu(id, 1);
hidemenu(id);
menus.menu[id].clickstatus = 0;
return;
}
menuobjpos(id, position);
menus.menu[id].menuobj.style.display = '';
}
function hidemenu(id) {
if(!menus.menu[id] || !menus.menu[id].allowhide || menus.menu[id].hidelock) {
return;
}
menus.menu[id].menuobj.style.display = 'none';
}
function lockmenu(id, value) {
if(!menus.menu[id]) {
return;
}
for(i = 0;i < menus.menu[id].parentids.length;i++) {
menus.menu[menus.menu[id].parentids[i]].hidelock = value == 0 ? 1 : 0;
}
menus.menu[id].allowhide = value;
}
var lang = new Array();
function insertunit(text, textend, moveend) {
$('pm_textarea').focus();
textend = isUndefined(textend) ? '' : textend;
moveend = isUndefined(textend) ? 0 : moveend;
startlen = strlen(text);
endlen = strlen(textend);
if(!isUndefined($('pm_textarea').selectionStart)) {
var opn = $('pm_textarea').selectionStart + 0;
if(textend != '') {
text = text + $('pm_textarea').value.substring($('pm_textarea').selectionStart, $('pm_textarea').selectionEnd) + textend;
}
$('pm_textarea').value = $('pm_textarea').value.substr(0, $('pm_textarea').selectionStart) + text + $('pm_textarea').value.substr($('pm_textarea').selectionEnd);
if(!moveend) {
$('pm_textarea').selectionStart = opn + strlen(text) - endlen;
$('pm_textarea').selectionEnd = opn + strlen(text) - endlen;
}
} else if(document.selection && document.selection.createRange) {
var sel = document.selection.createRange();
if(textend != '') {
text = text + sel.text + textend;
}
sel.text = text.replace(/\r?\n/g, '\r\n');
if(!moveend) {
sel.moveStart('character', -endlen);
sel.moveEnd('character', -endlen);
}
sel.select();
} else {
$('pm_textarea').value += text;
}
}
function getSel() {
if(!isUndefined($('pm_textarea').selectionStart)) {
return $('pm_textarea').value.substr($('pm_textarea').selectionStart, $('pm_textarea').selectionEnd - $('pm_textarea').selectionStart);
} else if(document.selection && document.selection.createRange) {
return document.selection.createRange().text;
} else if(window.getSelection) {
return window.getSelection() + '';
} else {
return false;
}
}
function insertlist(type) {
txt = getSel();
type = isUndefined(type) ? '' : '=' + type;
if(txt) {
var regex = new RegExp('([\r\n]+|^[\r\n]*)(?!\\[\\*\\]|\\[\\/?list)(?=[^\r\n])', 'gi');
txt = '[list' + type + ']\n' + txt.replace(regex, '$1[*]') + '\n' + '[/list]';
insertunit(txt);
} else {
insertunit('[list' + type + ']\n', '[/list]');
while(listvalue = prompt(lang['pm_prompt_list'], '')) {
if(is_opera > 8) {
listvalue = '\n' + '[*]' + listvalue;
insertunit(listvalue);
} else {
listvalue = '[*]' + listvalue + '\n';
insertunit(listvalue);
}
}
}
}
function inserttag(tag, type) {
txt = getSel();
type = isUndefined(type) ? 0 : type;
if(!type) {
if(!txt) {
txt = prompt(lang['pm_prompt_' + tag], '')
}
if(txt) {
insertunit('[' + tag + ']' + txt + '[/' + tag + ']');
}
} else {
txt1 = prompt(lang['pm_prompt_' + tag], '');
if(!txt) {
txt = txt1;
}
if(txt1) {
insertunit('[' + tag + '=' + txt1 + ']' + txt + '[/' + tag + ']');
}
}
}