Файл: upload/static/jscript/editarea/elements_functions.js
Строк: 448
<?php
/****
* This page contains some general usefull functions for javascript
*
****/
// need to redefine this functiondue to IE problem
function getAttribute( elm, aName ) {
var aValue,taName,i;
try{
aValue = elm.getAttribute( aName );
}catch(exept){}
if( ! aValue ){
for( i = 0; i < elm.attributes.length; i ++ ) {
taName = elm.attributes[i] .name.toLowerCase();
if( taName == aName ) {
aValue = elm.attributes[i] .value;
return aValue;
}
}
}
return aValue;
};
// need to redefine this function due to IE problem
function setAttribute( elm, attr, val ) {
if(attr=="class"){
elm.setAttribute("className", val);
elm.setAttribute("class", val);
}else{
elm.setAttribute(attr, val);
}
};
/* return a child element
elem: element we are searching in
elem_type: type of the eleemnt we are searching (DIV, A, etc...)
elem_attribute: attribute of the searched element that must match
elem_attribute_match: value that elem_attribute must match
option: "all" if must return an array of all children, otherwise return the first match element
depth: depth of search (-1 or no set => unlimited)
*/
function getChildren(elem, elem_type, elem_attribute, elem_attribute_match, option, depth)
{
if(!option)
var option="single";
if(!depth)
var depth=-1;
if(elem){
var children= elem.childNodes;
var result=null;
var results= [];
for (var x=0;x<children.length;x++) {
strTagName = new String(children[x].tagName);
children_class="?";
if(strTagName!= "undefined"){
child_attribute= getAttribute(children[x],elem_attribute);
if((strTagName.toLowerCase()==elem_type.toLowerCase() || elem_type=="") && (elem_attribute=="" || child_attribute==elem_attribute_match)){
if(option=="all"){
results.push(children[x]);
}else{
return children[x];
}
}
if(depth!=0){
result=getChildren(children[x], elem_type, elem_attribute, elem_attribute_match, option, depth-1);
if(option=="all"){
if(result.length>0){
results= results.concat(result);
}
}else if(result!=null){
return result;
}
}
}
}
if(option=="all")
return results;
}
return null;
};
function isChildOf(elem, parent){
if(elem){
if(elem==parent)
return true;
while(elem.parentNode != 'undefined'){
return isChildOf(elem.parentNode, parent);
}
}
return false;
};
function getMouseX(e){
if(e!=null && typeof(e.pageX)!="undefined"){
return e.pageX;
}else{
return (e!=null?e.x:event.x)+ document.documentElement.scrollLeft;
}
};
function getMouseY(e){
if(e!=null && typeof(e.pageY)!="undefined"){
return e.pageY;
}else{
return (e!=null?e.y:event.y)+ document.documentElement.scrollTop;
}
};
function calculeOffsetLeft(r){
return calculeOffset(r,"offsetLeft")
};
function calculeOffsetTop(r){
return calculeOffset(r,"offsetTop")
};
function calculeOffset(element,attr){
var offset=0;
while(element){
offset+=element[attr];
element=element.offsetParent
}
return offset;
};
/** return the computed style
* @param: elem: the reference to the element
* @param: prop: the name of the css property
*/
function get_css_property(elem, prop)
{
if(document.defaultView)
{
return document.defaultView.getComputedStyle(elem, null).getPropertyValue(prop);
}
else if(elem.currentStyle)
{
var prop = prop.replace(/-D/gi, function(sMatch)
{
return sMatch.charAt(sMatch.length - 1).toUpperCase();
});
return elem.currentStyle[prop];
}
else return null;
}
/****
* Moving an element
***/
var _mCE; // currently moving element
/* allow to move an element in a window
e: the event
id: the id of the element
frame: the frame of the element
ex of use:
in html: <img id='move_area_search_replace' onmousedown='return parent.start_move_element(event,"area_search_replace", parent.frames["this_frame_id"]);' .../>
or
in javascript: document.getElementById("my_div").onmousedown= start_move_element
*/
function start_move_element(e, id, frame){
var elem_id=(e.target || e.srcElement).id;
if(id)
elem_id=id;
if(!frame)
frame=window;
if(frame.event)
e=frame.event;
_mCE= frame.document.getElementById(elem_id);
_mCE.frame=frame;
frame.document.onmousemove= move_element;
frame.document.onmouseup= end_move_element;
/*_mCE.onmousemove= move_element;
_mCE.onmouseup= end_move_element;*/
//alert(_mCE.frame.document.body.offsetHeight);
mouse_x= getMouseX(e);
mouse_y= getMouseY(e);
//window.status=frame+ " elem: "+elem_id+" elem: "+ _mCE + " mouse_x: "+mouse_x;
_mCE.start_pos_x = mouse_x - (_mCE.style.left.replace("px","") || calculeOffsetLeft(_mCE));
_mCE.start_pos_y = mouse_y - (_mCE.style.top.replace("px","") || calculeOffsetTop(_mCE));
return false;
};
function end_move_element(e){
_mCE.frame.document.onmousemove= "";
_mCE.frame.document.onmouseup= "";
_mCE=null;
};
function move_element(e){
var newTop,newLeft,maxLeft;
if( _mCE.frame && _mCE.frame.event )
e=_mCE.frame.event;
newTop = getMouseY(e) - _mCE.start_pos_y;
newLeft = getMouseX(e) - _mCE.start_pos_x;
maxLeft = _mCE.frame.document.body.offsetWidth- _mCE.offsetWidth;
max_top = _mCE.frame.document.body.offsetHeight- _mCE.offsetHeight;
newTop = Math.min(Math.max(0, newTop), max_top);
newLeft = Math.min(Math.max(0, newLeft), maxLeft);
_mCE.style.top = newTop+"px";
_mCE.style.left = newLeft+"px";
return false;
};
/***
* Managing a textarea (this part need the navigator infos from editAreaLoader
***/
var nav= editAreaLoader.nav;
// allow to get infos on the selection: array(start, end)
function getSelectionRange(textarea){
return {"start": textarea.selectionStart, "end": textarea.selectionEnd};
};
// allow to set the selection
function setSelectionRange(t, start, end){
t.focus();
start = Math.max(0, Math.min(t.value.length, start));
end = Math.max(start, Math.min(t.value.length, end));
if( this.isOpera && this.isOpera < 9.6 ){ // Opera bug when moving selection start and selection end
t.selectionEnd = 1;
t.selectionStart = 0;
t.selectionEnd = 1;
t.selectionStart = 0;
}
t.selectionStart = start;
t.selectionEnd = end;
//textarea.setSelectionRange(start, end);
if(isIE)
set_IE_selection(t);
};
// set IE position in Firefox mode (textarea.selectionStart and textarea.selectionEnd). should work as a repeated task
function get_IE_selection(t){
var d=document,div,range,stored_range,elem,scrollTop,relative_top,line_start,line_nb,range_start,range_end,tab;
if(t && t.focused)
{
if(!t.ea_line_height)
{ // calculate the lineHeight
div= d.createElement("div");
div.style.fontFamily= get_css_property(t, "font-family");
div.style.fontSize= get_css_property(t, "font-size");
div.style.visibility= "hidden";
div.innerHTML="0";
d.body.appendChild(div);
t.ea_line_height= div.offsetHeight;
d.body.removeChild(div);
}
//t.focus();
range = d.selection.createRange();
try
{
stored_range = range.duplicate();
stored_range.moveToElementText( t );
stored_range.setEndPoint( 'EndToEnd', range );
if(stored_range.parentElement() == t){
// the range don't take care of empty lines in the end of the selection
elem = t;
scrollTop = 0;
while(elem.parentNode){
scrollTop+= elem.scrollTop;
elem = elem.parentNode;
}
// var scrollTop= t.scrollTop + document.body.scrollTop;
// var relative_top= range.offsetTop - calculeOffsetTop(t) + scrollTop;
relative_top= range.offsetTop - calculeOffsetTop(t)+ scrollTop;
// alert("rangeoffset: "+ range.offsetTop +"ncalcoffsetTop: "+ calculeOffsetTop(t) +"nrelativeTop: "+ relative_top);
line_start = Math.round((relative_top / t.ea_line_height) +1);
line_nb = Math.round(range.boundingHeight / t.ea_line_height);
range_start = stored_range.text.length - range.text.length;
tab = t.value.substr(0, range_start).split("n");
range_start += (line_start - tab.length)*2; // add missing empty lines to the selection
t.selectionStart = range_start;
range_end = t.selectionStart + range.text.length;
tab = t.value.substr(0, range_start + range.text.length).split("n");
range_end += (line_start + line_nb - 1 - tab.length)*2;
t.selectionEnd = range_end;
}
}
catch(e){}
}
setTimeout("get_IE_selection(document.getElementById('"+ t.id +"'));", 50);
};
function IE_textarea_focus(){
event.srcElement.focused= true;
}
function IE_textarea_blur(){
event.srcElement.focused= false;
}
// select the text for IE (take into account the r difference)
function set_IE_selection( t ){
var nbLineStart,nbLineStart,nbLineEnd,range;
if(!window.closed){
nbLineStart=t.value.substr(0, t.selectionStart).split("n").length - 1;
nbLineEnd=t.value.substr(0, t.selectionEnd).split("n").length - 1;
try
{
range = document.selection.createRange();
range.moveToElementText( t );
range.setEndPoint( 'EndToStart', range );
range.moveStart('character', t.selectionStart - nbLineStart);
range.moveEnd('character', t.selectionEnd - nbLineEnd - (t.selectionStart - nbLineStart) );
range.select();
}
catch(e){}
}
};
editAreaLoader.waiting_loading["elements_functions.js"]= "loaded";
?>