Experimental viewport meta tag support for desktop, Blink-side.

Source/core/css/CSSDefaultStyleSheets.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
@@ skipping 15 matching lines @@
  * Boston, MA 02110-1301, USA.
  */
 
 #include "config.h"
 #include "core/css/CSSDefaultStyleSheets.h"
 
 #include "UserAgentStyleSheets.h"
 #include "core/css/MediaQueryEvaluator.h"
 #include "core/css/RuleSet.h"
 #include "core/css/StyleSheetContents.h"
+#include "core/css/ViewportStyle.h"
 #include "core/dom/FullscreenElementStack.h"
 #include "core/html/HTMLAnchorElement.h"
 #include "core/html/HTMLHtmlElement.h"
 #include "core/html/HTMLVideoElement.h"
 #include "core/rendering/RenderTheme.h"
 
 namespace WebCore {
 
 using namespace HTMLNames;
 
 RuleSet* CSSDefaultStyleSheets::defaultStyle;
 RuleSet* CSSDefaultStyleSheets::defaultQuirksStyle;
 RuleSet* CSSDefaultStyleSheets::defaultPrintStyle;
 RuleSet* CSSDefaultStyleSheets::defaultViewSourceStyle;
 RuleSet* CSSDefaultStyleSheets::defaultXHTMLMobileProfileStyle;
 
 StyleSheetContents* CSSDefaultStyleSheets::simpleDefaultStyleSheet;
 StyleSheetContents* CSSDefaultStyleSheets::defaultStyleSheet;
 StyleSheetContents* CSSDefaultStyleSheets::quirksStyleSheet;
 StyleSheetContents* CSSDefaultStyleSheets::svgStyleSheet;
 StyleSheetContents* CSSDefaultStyleSheets::mediaControlsStyleSheet;
 StyleSheetContents* CSSDefaultStyleSheets::fullscreenStyleSheet;
 
 // FIXME: It would be nice to use some mechanism that guarantees this is in sync with the real UA stylesheet.
-static const char simpleUserAgentStyleSheet[] = "html,body,div{display:block}head{display:none}body{margin:8px}div:focus,span:focus,a:focus{outline:auto 5px -webkit-focus-ring-color}a:-webkit-any-link{color:-webkit-link;text-decoration:underline}a:-webkit-any-link:active{color:-webkit-activelink}body:-webkit-seamless-document{margin:0}body:-webkit-full-page-media{background-color:black}@viewport{min-width:980px}@page{size:auto;margin:auto;padding:0;border-width:0}";
+static const char simpleUserAgentStyleSheet[] = "html,body,div{display:block}head{display:none}body{margin:8px}div:focus,span:focus,a:focus{outline:auto 5px -webkit-focus-ring-color}a:-webkit-any-link{color:-webkit-link;text-decoration:underline}a:-webkit-any-link:active{color:-webkit-activelink}body:-webkit-seamless-document{margin:0}body:-webkit-full-page-media{background-color:black}@page{size:auto;margin:auto;padding:0;border-width:0}";
 
 static inline bool elementCanUseSimpleDefaultStyle(Element* e)
 {
     return isHTMLHtmlElement(e) || e->hasTagName(headTag) || e->hasTagName(bodyTag) || e->hasTagName(divTag) || e->hasTagName(spanTag) || e->hasTagName(brTag) || isHTMLAnchorElement(e);
 }
 
 static const MediaQueryEvaluator& screenEval()
 {
     DEFINE_STATIC_LOCAL(const MediaQueryEvaluator, staticScreenEval, ("screen"));
     return staticScreenEval;
@@ skipping 41 matching lines @@
         ASSERT(!defaultStyle);
         defaultStyle = RuleSet::create().leakPtr();
         defaultPrintStyle = RuleSet::create().leakPtr();
         defaultQuirksStyle = RuleSet::create().leakPtr();
     }
 
     // Strict-mode rules.
     String defaultRules = String(htmlUserAgentStyleSheet, sizeof(htmlUserAgentStyleSheet)) + RenderTheme::theme().extraDefaultStyleSheet();
     defaultStyleSheet = parseUASheet(defaultRules);
     defaultStyle->addRulesFromSheet(defaultStyleSheet, screenEval());
+    defaultStyle->addRulesFromSheet(parseUASheet(ViewportStyle::viewportStyleSheet()), screenEval());
     defaultPrintStyle->addRulesFromSheet(defaultStyleSheet, printEval());
 
     // Quirks-mode rules.
     String quirksRules = String(quirksUserAgentStyleSheet, sizeof(quirksUserAgentStyleSheet)) + RenderTheme::theme().extraQuirksStyleSheet();
     quirksStyleSheet = parseUASheet(quirksRules);
     defaultQuirksStyle->addRulesFromSheet(quirksStyleSheet, screenEval());
 }
 
 void CSSDefaultStyleSheets::loadSimpleDefaultStyle()
 {
     ASSERT(!defaultStyle);
     ASSERT(!simpleDefaultStyleSheet);
 
     defaultStyle = RuleSet::create().leakPtr();
     // There are no media-specific rules in the simple default style.
     defaultPrintStyle = defaultStyle;
     defaultQuirksStyle = RuleSet::create().leakPtr();
 
     simpleDefaultStyleSheet = parseUASheet(simpleUserAgentStyleSheet, strlen(simpleUserAgentStyleSheet));
     defaultStyle->addRulesFromSheet(simpleDefaultStyleSheet, screenEval());
+    defaultStyle->addRulesFromSheet(parseUASheet(ViewportStyle::viewportStyleSheet()), screenEval());
 
     // No need to initialize quirks sheet yet as there are no quirk rules for elements allowed in simple default style.
 }
 
 RuleSet* CSSDefaultStyleSheets::viewSourceStyle()
 {
     if (!defaultViewSourceStyle) {
         defaultViewSourceStyle = RuleSet::create().leakPtr();
         defaultViewSourceStyle->addRulesFromSheet(parseUASheet(sourceUserAgentStyleSheet, sizeof(sourceUserAgentStyleSheet)), screenEval());
     }
@@ skipping 41 matching lines @@
         defaultStyle->addRulesFromSheet(fullscreenStyleSheet, screenEval());
         defaultQuirksStyle->addRulesFromSheet(fullscreenStyleSheet, screenEval());
         changedDefaultStyle = true;
     }
 
     ASSERT(defaultStyle->features().idsInRules.isEmpty());
     ASSERT(defaultStyle->features().siblingRules.isEmpty());
 }
 
 } // namespace WebCore