/* | |
* Copyright (C) 1999 Lars Knoll (knoll@kde.org) | |
* (C) 1999 Antti Koivisto (koivisto@kde.org) | |
* (C) 2001 Dirk Mueller (mueller@kde.org) | |
* (C) 2006 Alexey Proskuryakov (ap@webkit.org) | |
* Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. | |
* Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/) | |
* | |
* This library is free software; you can redistribute it and/or | |
* modify it under the terms of the GNU Library General Public | |
* License as published by the Free Software Foundation; either | |
* version 2 of the License, or (at your option) any later version. | |
* | |
* This library is distributed in the hope that it will be useful, | |
* but WITHOUT ANY WARRANTY; without even the implied warranty of | |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
* Library General Public License for more details. | |
* | |
* You should have received a copy of the GNU Library General Public License | |
* along with this library; see the file COPYING.LIB. If not, write to | |
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
* Boston, MA 02110-1301, USA. | |
* | |
*/ | |
#include "config.h" | |
#include "ViewportArguments.h" | |
#include "Chrome.h" | |
#include "Console.h" | |
#include "DOMWindow.h" | |
#include "Document.h" | |
#include "Frame.h" | |
#include "Page.h" | |
#include "PlatformString.h" | |
#include "Tokenizer.h" | |
namespace WebCore { | |
void setViewportFeature(const String& keyString, const String& valueString, Document* document, void* data) | |
{ | |
ViewportArguments* arguments = static_cast<ViewportArguments*>(data); | |
float value = ViewportArguments::ValueUndefined; | |
bool didUseConstants = false; | |
if (equalIgnoringCase(valueString, "yes")) | |
value = 1; | |
else if (equalIgnoringCase(valueString, "device-width")) { | |
didUseConstants = true; | |
if (document->page()) | |
value = document->page()->chrome()->windowRect().width(); | |
} else if (equalIgnoringCase(valueString, "device-height")) { | |
didUseConstants = true; | |
if (document->page()) | |
value = document->page()->chrome()->windowRect().height(); | |
} else if (equalIgnoringCase(valueString, "default")) // This allows us to distinguish the omission of a key from asking for the default value. | |
value = -2; | |
else if (valueString.length()) // listing a key with no value is shorthand for key=default | |
value = valueString.toFloat(); | |
if (keyString == "initial-scale") | |
arguments->initialScale = value; | |
else if (keyString == "minimum-scale") | |
arguments->minimumScale = value; | |
else if (keyString == "maximum-scale") { | |
arguments->maximumScale = value; | |
if (value > 10.0) | |
reportViewportWarning(document, MaximumScaleTooLargeError, keyString); | |
} else if (keyString == "user-scalable") | |
arguments->userScalable = value; | |
else if (keyString == "width") { | |
if (document->page() && value == document->page()->chrome()->windowRect().width() && !didUseConstants) | |
reportViewportWarning(document, DeviceWidthShouldBeUsedWarning, keyString); | |
else if (document->page() && value == document->page()->chrome()->windowRect().height() && !didUseConstants) | |
reportViewportWarning(document, DeviceHeightShouldBeUsedWarning, keyString); | |
arguments->width = value; | |
} else if (keyString == "height") { | |
if (document->page() && value == document->page()->chrome()->windowRect().width() && !didUseConstants) | |
reportViewportWarning(document, DeviceWidthShouldBeUsedWarning, keyString); | |
else if (document->page() && value == document->page()->chrome()->windowRect().height() && !didUseConstants) | |
reportViewportWarning(document, DeviceHeightShouldBeUsedWarning, keyString); | |
arguments->height = value; | |
} else | |
reportViewportWarning(document, UnrecognizedViewportArgumentError, keyString); | |
} | |
static const char* viewportErrorMessageTemplate(ViewportErrorCode errorCode) | |
{ | |
static const char* const errors[] = { | |
"Viewport width or height set to physical device width, try using \"device-width\" constant instead for future compatibility.", | |
"Viewport height or height set to physical device height, try using \"device-height\" constant instead for future compatibility.", | |
"Viewport argument \"%replacement\" not recognized. Content ignored.", | |
"Viewport maximum-scale cannot be larger than 10.0. The maximum-scale will be set to 10.0." | |
}; | |
return errors[errorCode]; | |
} | |
static MessageLevel viewportErrorMessageLevel(ViewportErrorCode errorCode) | |
{ | |
return errorCode == UnrecognizedViewportArgumentError || errorCode == MaximumScaleTooLargeError ? ErrorMessageLevel : TipMessageLevel; | |
} | |
void reportViewportWarning(Document* document, ViewportErrorCode errorCode, const String& replacement) | |
{ | |
Tokenizer* tokenizer = document->tokenizer(); | |
Frame* frame = document->frame(); | |
if (!frame) | |
return; | |
String message = viewportErrorMessageTemplate(errorCode); | |
message.replace("%replacement", replacement); | |
frame->domWindow()->console()->addMessage(HTMLMessageSource, LogMessageType, viewportErrorMessageLevel(errorCode), message, tokenizer ? tokenizer->lineNumber() + 1 : 0, document->url().string()); | |
} | |
} // namespace WebCore |