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/*
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* Copyright (C) 2000 Harri Porten (porten@kde.org)
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* Copyright (C) 2006 Jon Shier (jshier@iastate.edu)
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* Copyright (C) 2003, 2004, 2005, 2006, 2007 Apple Inc. All rights reseved.
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* Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
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* USA
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*/
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#include "config.h"
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#include "WindowFeatures.h"
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#include "PlatformString.h"
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#include "StringHash.h"
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#include <wtf/Assertions.h>
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#include <wtf/HashMap.h>
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#include <wtf/MathExtras.h>
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namespace WebCore {
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// Though isspace() considers \t and \v to be whitespace, Win IE doesn't.
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static bool isSeparator(UChar c)
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{
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return c == ' ' || c == '\t' || c == '\n' || c == '\r' || c == '=' || c == ',' || c == '\0';
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}
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WindowFeatures::WindowFeatures(const String& features)
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: xSet(false)
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, ySet(false)
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, widthSet(false)
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, heightSet(false)
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, fullscreen(false)
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, dialog(false)
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{
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/*
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The IE rule is: all features except for channelmode and fullscreen default to YES, but
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if the user specifies a feature string, all features default to NO. (There is no public
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standard that applies to this method.)
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<http://msdn.microsoft.com/workshop/author/dhtml/reference/methods/open_0.asp>
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We always allow a window to be resized, which is consistent with Firefox.
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*/
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if (features.length() == 0) {
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menuBarVisible = true;
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statusBarVisible = true;
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toolBarVisible = true;
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locationBarVisible = true;
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scrollbarsVisible = true;
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resizable = true;
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return;
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}
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menuBarVisible = false;
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statusBarVisible = false;
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toolBarVisible = false;
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locationBarVisible = false;
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scrollbarsVisible = false;
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resizable = true;
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// Tread lightly in this code -- it was specifically designed to mimic Win IE's parsing behavior.
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int keyBegin, keyEnd;
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int valueBegin, valueEnd;
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int i = 0;
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int length = features.length();
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String buffer = features.lower();
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while (i < length) {
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// skip to first non-separator, but don't skip past the end of the string
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while (isSeparator(buffer[i])) {
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if (i >= length)
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break;
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i++;
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}
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keyBegin = i;
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// skip to first separator
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while (!isSeparator(buffer[i]))
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i++;
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keyEnd = i;
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// skip to first '=', but don't skip past a ',' or the end of the string
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while (buffer[i] != '=') {
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if (buffer[i] == ',' || i >= length)
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break;
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i++;
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}
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// skip to first non-separator, but don't skip past a ',' or the end of the string
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while (isSeparator(buffer[i])) {
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if (buffer[i] == ',' || i >= length)
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break;
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i++;
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}
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valueBegin = i;
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// skip to first separator
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while (!isSeparator(buffer[i]))
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i++;
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valueEnd = i;
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ASSERT(i <= length);
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String keyString(buffer.substring(keyBegin, keyEnd - keyBegin));
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String valueString(buffer.substring(valueBegin, valueEnd - valueBegin));
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setWindowFeature(keyString, valueString);
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}
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}
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void WindowFeatures::setWindowFeature(const String& keyString, const String& valueString)
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{
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int value;
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// Listing a key with no value is shorthand for key=yes
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if (valueString.length() == 0 || valueString == "yes")
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value = 1;
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else
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value = valueString.toInt();
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// We ignore a keyString of "resizable", which is consistent with Firefox.
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if (keyString == "left" || keyString == "screenx") {
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xSet = true;
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x = value;
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} else if (keyString == "top" || keyString == "screeny") {
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ySet = true;
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y = value;
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} else if (keyString == "width" || keyString == "innerwidth") {
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widthSet = true;
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width = value;
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} else if (keyString == "height" || keyString == "innerheight") {
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heightSet = true;
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height = value;
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} else if (keyString == "menubar")
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menuBarVisible = value;
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else if (keyString == "toolbar")
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toolBarVisible = value;
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else if (keyString == "location")
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locationBarVisible = value;
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else if (keyString == "status")
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statusBarVisible = value;
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else if (keyString == "fullscreen")
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fullscreen = value;
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else if (keyString == "scrollbars")
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scrollbarsVisible = value;
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}
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bool WindowFeatures::boolFeature(const HashMap<String, String>& features, const char* key, bool defaultValue)
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{
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HashMap<String, String>::const_iterator it = features.find(key);
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if (it == features.end())
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return defaultValue;
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const String& value = it->second;
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return value.isNull() || value == "1" || value == "yes" || value == "on";
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}
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float WindowFeatures::floatFeature(const HashMap<String, String>& features, const char* key, float min, float max, float defaultValue)
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{
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HashMap<String, String>::const_iterator it = features.find(key);
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if (it == features.end())
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return defaultValue;
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// FIXME: Can't distinguish "0q" from string with no digits in it -- both return d == 0 and ok == false.
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// Would be good to tell them apart somehow since string with no digits should be default value and
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// "0q" should be minimum value.
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bool ok;
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double d = it->second.toDouble(&ok);
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if ((d == 0 && !ok) || isnan(d))
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return defaultValue;
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if (d < min || max <= min)
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return min;
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if (d > max)
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return max;
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return static_cast<int>(d);
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}
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} // namespace WebCore
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