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Next try. IE does not have a simple variable to return the selection position / cursor position inside a textarea, so this can only be done with slow but functional hacks. Not even IE7 fixes this.

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git-svn-id: file:///svn/phpbb/trunk@6653 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
Dominik Dröscher 2006-11-25 01:10:51 +00:00
parent 8f97dc8d78
commit eb856283a6
2 changed files with 48 additions and 52 deletions
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50
phpBB/adm/style/editor.js
View file

@ -360,37 +360,35 @@ function getCaretPosition(txtarea)
{ {
var caretPos = new caretPosition(); var caretPos = new caretPosition();
// dirty IE way
// Idea by tkirby on http://www.csie.ntu.edu.tw/~b88039/html/jslib/caret.html
if(document.selection && is_ie)
{
//insert dummy caracter at current position
var dummy = "\001";
var sel = document.selection.createRange();
var dul = sel.duplicate();
var len = 0;
dul.moveToElementText(txtarea);
sel.text = dummy;
//find dummy chraracter again
len = (dul.text.indexOf(dummy));
sel.moveStart('character',-1);
sel.text = "";
if (len == -1)
{
len = txtarea.value.length;
}
caretPos.start = len;
caretPos.end = len;
}
// simple Gecko/Opera way // simple Gecko/Opera way
else if(txtarea.selectionStart || txtarea.selectionStart == 0) if(txtarea.selectionStart || txtarea.selectionStart == 0)
{ {
caretPos.start = txtarea.selectionStart; caretPos.start = txtarea.selectionStart;
caretPos.end = txtarea.selectionEnd; caretPos.end = txtarea.selectionEnd;
} }
// dirty and slow IE way
else if(document.selection)
{
// get current selection
var range = document.selection.createRange();
// create a selection of the whole textarea
var range_all = document.body.createTextRange();
range_all.moveToElementText(txtarea);
// calculate selection start point by moving beginning of range_all to beginning of range
var sel_start;
for (sel_start = 0; range_all.compareEndPoints('StartToStart', range) < 0; sel_start++)
{
range_all.moveStart('character', 1);
}
txtarea.sel_start = sel_start;
// we ignore the end value for IE, this is already dirty enough and we don't need it
caretPos.start = txtarea.sel_start;
caretPos.end = txtarea.sel_start;
}
return caretPos; return caretPos;
} }

50
phpBB/styles/subSilver/template/editor.js
View file

@ -360,37 +360,35 @@ function getCaretPosition(txtarea)
{ {
var caretPos = new caretPosition(); var caretPos = new caretPosition();
// dirty IE way
// Idea by tkirby on http://www.csie.ntu.edu.tw/~b88039/html/jslib/caret.html
if(document.selection && is_ie)
{
//insert dummy caracter at current position
var dummy = "\001";
var sel = document.selection.createRange();
var dul = sel.duplicate();
var len = 0;
dul.moveToElementText(txtarea);
sel.text = dummy;
//find dummy chraracter again
len = (dul.text.indexOf(dummy));
sel.moveStart('character',-1);
sel.text = "";
if (len == -1)
{
len = txtarea.value.length;
}
caretPos.start = len;
caretPos.end = len;
}
// simple Gecko/Opera way // simple Gecko/Opera way
else if(txtarea.selectionStart || txtarea.selectionStart == 0) if(txtarea.selectionStart || txtarea.selectionStart == 0)
{ {
caretPos.start = txtarea.selectionStart; caretPos.start = txtarea.selectionStart;
caretPos.end = txtarea.selectionEnd; caretPos.end = txtarea.selectionEnd;
} }
// dirty and slow IE way
else if(document.selection)
{
// get current selection
var range = document.selection.createRange();
// a new selection of the whole textarea
var range_all = document.body.createTextRange();
range_all.moveToElementText(txtarea);
// calculate selection start point by moving beginning of range_all to beginning of range
var sel_start;
for (sel_start = 0; range_all.compareEndPoints('StartToStart', range) < 0; sel_start++)
{
range_all.moveStart('character', 1);
}
txtarea.sel_start = sel_start;
// we ignore the end value for IE, this is already dirty enough and we don't need it
caretPos.start = txtarea.sel_start;
caretPos.end = txtarea.sel_start;
}
return caretPos; return caretPos;
} }