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IE7/8: Simplify textRange

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This commit is contained in:
Eston Bond
2010-12-03 22:46:59 -08:00
parent 0d6c4e2f89
commit 8a954f4435
1 changed files with 9 additions and 29 deletions
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lib/gollum/frontend/public/javascript/gollum-editor/gollum.editor.js
+8 -28
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@@ -124,8 +124,7 @@
*/ */
var debug = function(m) { var debug = function(m) {
if ( ActiveOptions.Debug if ( ActiveOptions.Debug
&& typeof console != 'undefined' && typeof console != 'undefined' ) {
&& typeof console.log == 'function' ) {
console.log( m ); console.log( m );
} }
}; };
@@ -503,8 +502,7 @@
*/ */
getFieldSelectionPosition: function( $field ) { getFieldSelectionPosition: function( $field ) {
if ($field.length) { if ($field.length) {
var start = 0, end = 0, normalizedValue, range, var start = 0, end = 0;
textInputRange, len, endRange;
var el = $field.get(0); var el = $field.get(0);
if (typeof el.selectionStart == "number" && if (typeof el.selectionStart == "number" &&
@@ -512,30 +510,12 @@
start = el.selectionStart; start = el.selectionStart;
end = el.selectionEnd; end = el.selectionEnd;
} else { } else {
range = document.selection.createRange(); var range = document.selection.createRange();
var stored_range = range.duplicate();
if (range && range.parentElement() == el) { stored_range.moveToElementText( el );
len = el.value.length; stored_range.setEndPoint( 'EndToEnd', range );
normalizedValue = el.value.replace(/\r\n/g, "\n"); start = stored_range.text.length - range.text.length;
textInputRange = el.createTextRange(); end = start + range.text.length;
textInputRange.moveToBookmark(range.getBookmark());
endRange = el.createTextRange();
endRange.collapse(false);
if (textInputRange.compareEndPoints("StartToEnd", endRange) > -1) {
start = end = len;
} else {
start = -textInputRange.moveStart("character", -len);
start += normalizedValue.slice(0, start).split("\n").length - 1;
if (textInputRange.compareEndPoints("EndToEnd", endRange) > -1) {
end = len;
} else {
end = -textInputRange.moveEnd("character", -len);
end += normalizedValue.slice(0, end).split("\n").length - 1;
}
}
}
} }
return { return {