WindowFeatures parseWindowFeatures(StringView featuresString)
{
// The IE rule is: all features except for channelmode and fullscreen default to YES, but
// if the user specifies a feature string, all features default to NO. (There is no public
// standard that applies to this method.)
//
// <http://msdn.microsoft.com/workshop/author/dhtml/reference/methods/open_0.asp>
// We always allow a window to be resized, which is consistent with Firefox.
WindowFeatures features;
if (featuresString.isEmpty())
return features;
features.menuBarVisible = false;
features.statusBarVisible = false;
features.toolBarVisible = false;
features.locationBarVisible = false;
features.scrollbarsVisible = false;
processFeaturesString(featuresString, [&features](StringView key, StringView value) {
setWindowFeature(features, key, value);
});
return features;
}
WindowFeatures::WindowFeatures(const String& features)
: xSet(false)
, ySet(false)
, widthSet(false)
, heightSet(false)
, fullscreen(false)
, dialog(false)
{
/*
The IE rule is: all features except for channelmode and fullscreen default to YES, but
if the user specifies a feature string, all features default to NO. (There is no public
standard that applies to this method.)
<http://msdn.microsoft.com/workshop/author/dhtml/reference/methods/open_0.asp>
We always allow a window to be resized, which is consistent with Firefox.
*/
if (features.length() == 0) {
menuBarVisible = true;
statusBarVisible = true;
toolBarVisible = true;
locationBarVisible = true;
scrollbarsVisible = true;
resizable = true;
return;
}
menuBarVisible = false;
statusBarVisible = false;
toolBarVisible = false;
locationBarVisible = false;
scrollbarsVisible = false;
resizable = true;
// Tread lightly in this code -- it was specifically designed to mimic Win IE's parsing behavior.
int keyBegin, keyEnd;
int valueBegin, valueEnd;
int i = 0;
int length = features.length();
String buffer = features.lower();
while (i < length) {
// skip to first non-separator, but don't skip past the end of the string
while (i < length && isWindowFeaturesSeparator(buffer[i]))
i++;
keyBegin = i;
// skip to first separator
while (i < length && !isWindowFeaturesSeparator(buffer[i]))
i++;
keyEnd = i;
ASSERT_WITH_SECURITY_IMPLICATION(i <= length);
// skip to first '=', but don't skip past a ',' or the end of the string
while (i < length && buffer[i] != '=') {
if (buffer[i] == ',')
break;
i++;
}
ASSERT_WITH_SECURITY_IMPLICATION(i <= length);
// skip to first non-separator, but don't skip past a ',' or the end of the string
while (i < length && isWindowFeaturesSeparator(buffer[i])) {
if (buffer[i] == ',')
break;
i++;
}
valueBegin = i;
ASSERT_WITH_SECURITY_IMPLICATION(i <= length);
// skip to first separator
while (i < length && !isWindowFeaturesSeparator(buffer[i]))
i++;
valueEnd = i;
ASSERT_WITH_SECURITY_IMPLICATION(i <= length);
String keyString(buffer.substring(keyBegin, keyEnd - keyBegin));
String valueString(buffer.substring(valueBegin, valueEnd - valueBegin));
setWindowFeature(keyString, valueString);
}
}