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/*
* Copyright (C) 2010 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "InspectorCSSStore.h"
#if ENABLE(INSPECTOR)
#include "CSSMutableStyleDeclaration.h"
#include "CSSParser.h"
#include "CSSRuleList.h"
#include "CSSStyleDeclaration.h"
#include "CSSStyleRule.h"
#include "CSSStyleSheet.h"
#include "HTMLHeadElement.h"
#include "InspectorController.h"
#include "InspectorResource.h"
#include "PlatformString.h"
#include "RemoteInspectorFrontend.h"
#include "StyleSheetList.h"
namespace WebCore {
InspectorCSSStore::InspectorCSSStore(InspectorController* inspectorController)
: m_inspectorController(inspectorController)
, m_lastStyleId(1)
, m_lastStyleSheetId(1)
, m_lastRuleId(1)
{
}
InspectorCSSStore::~InspectorCSSStore()
{
}
void InspectorCSSStore::reset()
{
m_styleToId.clear();
m_idToStyle.clear();
m_ruleToId.clear();
m_idToRule.clear();
deleteAllValues(m_styleSheetToOffsets);
m_styleSheetToOffsets.clear();
m_styleSheetToId.clear();
m_idToStyleSheet.clear();
m_idToDisabledStyle.clear();
m_documentNodeToInspectorStyleSheetMap.clear();
m_lastStyleId = 1;
m_lastStyleSheetId = 1;
m_lastRuleId = 1;
}
void InspectorCSSStore::removeDocument(Document* doc)
{
m_documentNodeToInspectorStyleSheetMap.remove(doc);
}
CSSStyleSheet* InspectorCSSStore::inspectorStyleSheet(Document* ownerDocument, bool createIfAbsent)
{
DocumentToStyleSheetMap::iterator it = m_documentNodeToInspectorStyleSheetMap.find(ownerDocument);
if (it != m_documentNodeToInspectorStyleSheetMap.end())
return it->second.get();
if (!createIfAbsent)
return 0;
ExceptionCode ec = 0;
RefPtr<Element> styleElement = ownerDocument->createElement("style", ec);
if (!ec)
styleElement->setAttribute("type", "text/css", ec);
if (!ec)
ownerDocument->head()->appendChild(styleElement, ec);
if (ec)
return 0;
StyleSheetList* styleSheets = ownerDocument->styleSheets();
StyleSheet* styleSheet = styleSheets->item(styleSheets->length() - 1);
if (!styleSheet->isCSSStyleSheet())
return 0;
CSSStyleSheet* inspectorStyleSheet = static_cast<CSSStyleSheet*>(styleSheet);
m_documentNodeToInspectorStyleSheetMap.set(ownerDocument, inspectorStyleSheet);
return inspectorStyleSheet;
}
HashMap<long, SourceRange> InspectorCSSStore::getRuleRanges(CSSStyleSheet* styleSheet)
{
if (!styleSheet)
return HashMap<long, SourceRange>();
RefPtr<CSSRuleList> originalRuleList = CSSRuleList::create(styleSheet, false);
StyleSheetToOffsetsMap::iterator it = m_styleSheetToOffsets.find(styleSheet);
Vector<SourceRange>* offsetVector = 0;
if (it == m_styleSheetToOffsets.end()) {
InspectorResource* resource = m_inspectorController->resourceForURL(styleSheet->finalURL().string());
if (resource) {
offsetVector = new Vector<SourceRange>;
RefPtr<CSSStyleSheet> newStyleSheet = CSSStyleSheet::create(styleSheet->ownerNode());
CSSParser p;
CSSParser::StyleRuleRanges ruleRangeMap;
p.parseSheet(newStyleSheet.get(), resource->sourceString(), 0, &ruleRangeMap);
for (unsigned i = 0, length = newStyleSheet->length(); i < length; ++i) {
CSSStyleRule* rule = asCSSStyleRule(newStyleSheet->item(i));
if (!rule)
continue;
HashMap<CSSStyleRule*, std::pair<unsigned, unsigned> >::iterator it = ruleRangeMap.find(rule);
if (it != ruleRangeMap.end())
offsetVector->append(it->second);
}
m_styleSheetToOffsets.set(styleSheet, offsetVector);
}
} else
offsetVector = it->second;
if (!offsetVector)
return HashMap<long, SourceRange>();
unsigned ruleIndex = 0;
HashMap<long, SourceRange> result;
for (unsigned i = 0, length = styleSheet->length(); i < length; ++i) {
ASSERT(ruleIndex < offsetVector->size());
CSSStyleRule* rule = asCSSStyleRule(styleSheet->item(i));
if (!rule)
continue;
// This maps the style id to the rule body range.
result.set(bindStyle(rule->style()), offsetVector->at(ruleIndex));
ruleIndex++;
}
return result;
}
CSSStyleRule* InspectorCSSStore::asCSSStyleRule(StyleBase* styleBase)
{
if (!styleBase->isStyleRule())
return 0;
CSSRule* rule = static_cast<CSSRule*>(styleBase);
if (rule->type() != CSSRule::STYLE_RULE)
return 0;
return static_cast<CSSStyleRule*>(rule);
}
DisabledStyleDeclaration* InspectorCSSStore::disabledStyleForId(long styleId, bool createIfAbsent)
{
IdToDisabledStyleMap::iterator it = m_idToDisabledStyle.find(styleId);
if (it == m_idToDisabledStyle.end() && createIfAbsent)
it = m_idToDisabledStyle.set(styleId, DisabledStyleDeclaration()).first;
return it == m_idToDisabledStyle.end() ? 0 : &(it->second);
}
CSSStyleDeclaration* InspectorCSSStore::styleForId(long styleId)
{
IdToStyleMap::iterator it = m_idToStyle.find(styleId);
return it == m_idToStyle.end() ? 0 : it->second.get();
}
CSSStyleSheet* InspectorCSSStore::styleSheetForId(long styleSheetId)
{
IdToStyleSheetMap::iterator it = m_idToStyleSheet.find(styleSheetId);
return it == m_idToStyleSheet.end() ? 0 : it->second.get();
}
CSSStyleRule* InspectorCSSStore::ruleForId(long ruleId)
{
IdToRuleMap::iterator it = m_idToRule.find(ruleId);
return it == m_idToRule.end() ? 0 : it->second.get();
}
long InspectorCSSStore::bindStyle(CSSStyleDeclaration* style)
{
long id = m_styleToId.get(style);
if (!id) {
id = m_lastStyleId++;
m_idToStyle.set(id, style);
m_styleToId.set(style, id);
}
return id;
}
long InspectorCSSStore::bindStyleSheet(CSSStyleSheet* styleSheet)
{
long id = m_styleSheetToId.get(styleSheet);
if (!id) {
id = m_lastStyleSheetId++;
m_idToStyleSheet.set(id, styleSheet);
m_styleSheetToId.set(styleSheet, id);
}
return id;
}
long InspectorCSSStore::bindRule(CSSStyleRule* rule)
{
long id = m_ruleToId.get(rule);
if (!id) {
id = m_lastRuleId++;
m_idToRule.set(id, rule);
m_ruleToId.set(rule, id);
}
return id;
}
} // namespace WebCore
#endif // ENABLE(INSPECTOR)
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