1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/inspector/inCSSValueSearch.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,406 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +#include "inCSSValueSearch.h"
1.9 +
1.10 +#include "mozilla/dom/StyleSheetList.h"
1.11 +#include "nsCSSStyleSheet.h"
1.12 +#include "nsIComponentManager.h"
1.13 +#include "nsIServiceManager.h"
1.14 +#include "nsReadableUtils.h"
1.15 +#include "nsIDOMDocument.h"
1.16 +#include "nsIDOMStyleSheetList.h"
1.17 +#include "nsIDOMCSSStyleSheet.h"
1.18 +#include "nsIDOMCSSRuleList.h"
1.19 +#include "nsIDOMCSSStyleRule.h"
1.20 +#include "nsIDOMCSSStyleDeclaration.h"
1.21 +#include "nsIDOMCSSImportRule.h"
1.22 +#include "nsIDOMCSSMediaRule.h"
1.23 +#include "nsIDOMCSSSupportsRule.h"
1.24 +#include "nsIURI.h"
1.25 +#include "nsIDocument.h"
1.26 +#include "nsNetUtil.h"
1.27 +
1.28 +using namespace mozilla;
1.29 +
1.30 +///////////////////////////////////////////////////////////////////////////////
1.31 +inCSSValueSearch::inCSSValueSearch()
1.32 + : mResults(nullptr),
1.33 + mProperties(nullptr),
1.34 + mResultCount(0),
1.35 + mPropertyCount(0),
1.36 + mIsActive(false),
1.37 + mHoldResults(true),
1.38 + mReturnRelativeURLs(true),
1.39 + mNormalizeChromeURLs(false)
1.40 +{
1.41 + nsCSSProps::AddRefTable();
1.42 + mProperties = new nsCSSProperty[100];
1.43 +}
1.44 +
1.45 +inCSSValueSearch::~inCSSValueSearch()
1.46 +{
1.47 + delete[] mProperties;
1.48 + delete mResults;
1.49 + nsCSSProps::ReleaseTable();
1.50 +}
1.51 +
1.52 +NS_IMPL_ISUPPORTS(inCSSValueSearch, inISearchProcess, inICSSValueSearch)
1.53 +
1.54 +///////////////////////////////////////////////////////////////////////////////
1.55 +// inISearchProcess
1.56 +
1.57 +NS_IMETHODIMP
1.58 +inCSSValueSearch::GetIsActive(bool *aIsActive)
1.59 +{
1.60 + *aIsActive = mIsActive;
1.61 + return NS_OK;
1.62 +}
1.63 +
1.64 +NS_IMETHODIMP
1.65 +inCSSValueSearch::GetResultCount(int32_t *aResultCount)
1.66 +{
1.67 + *aResultCount = mResultCount;
1.68 + return NS_OK;
1.69 +}
1.70 +
1.71 +NS_IMETHODIMP
1.72 +inCSSValueSearch::GetHoldResults(bool *aHoldResults)
1.73 +{
1.74 + *aHoldResults = mHoldResults;
1.75 + return NS_OK;
1.76 +}
1.77 +
1.78 +NS_IMETHODIMP
1.79 +inCSSValueSearch::SetHoldResults(bool aHoldResults)
1.80 +{
1.81 + mHoldResults = aHoldResults;
1.82 + return NS_OK;
1.83 +}
1.84 +
1.85 +NS_IMETHODIMP
1.86 +inCSSValueSearch::SearchSync()
1.87 +{
1.88 + InitSearch();
1.89 +
1.90 + if (!mDocument) {
1.91 + return NS_OK;
1.92 + }
1.93 +
1.94 + nsCOMPtr<nsIDocument> document = do_QueryInterface(mDocument);
1.95 + MOZ_ASSERT(document);
1.96 +
1.97 + nsCOMPtr<nsIURI> baseURI = document->GetBaseURI();
1.98 +
1.99 + nsRefPtr<dom::StyleSheetList> sheets = document->StyleSheets();
1.100 + MOZ_ASSERT(sheets);
1.101 +
1.102 + uint32_t length = sheets->Length();
1.103 + for (uint32_t i = 0; i < length; ++i) {
1.104 + nsRefPtr<nsCSSStyleSheet> sheet = sheets->Item(i);
1.105 + SearchStyleSheet(sheet, baseURI);
1.106 + }
1.107 +
1.108 + // XXX would be nice to search inline style as well.
1.109 +
1.110 + return NS_OK;
1.111 +}
1.112 +
1.113 +NS_IMETHODIMP
1.114 +inCSSValueSearch::SearchAsync(inISearchObserver *aObserver)
1.115 +{
1.116 + InitSearch();
1.117 + mObserver = aObserver;
1.118 +
1.119 + return NS_OK;
1.120 +}
1.121 +
1.122 +
1.123 +NS_IMETHODIMP
1.124 +inCSSValueSearch::SearchStop()
1.125 +{
1.126 + KillSearch(inISearchObserver::IN_INTERRUPTED);
1.127 + return NS_OK;
1.128 +}
1.129 +
1.130 +NS_IMETHODIMP
1.131 +inCSSValueSearch::SearchStep(bool* _retval)
1.132 +{
1.133 +
1.134 + return NS_OK;
1.135 +}
1.136 +
1.137 +
1.138 +NS_IMETHODIMP
1.139 +inCSSValueSearch::GetStringResultAt(int32_t aIndex, nsAString& _retval)
1.140 +{
1.141 + if (mHoldResults) {
1.142 + nsAutoString* result = mResults->ElementAt(aIndex);
1.143 + _retval = *result;
1.144 + } else if (aIndex == mResultCount-1) {
1.145 + _retval = mLastResult;
1.146 + } else {
1.147 + return NS_ERROR_FAILURE;
1.148 + }
1.149 + return NS_OK;
1.150 +}
1.151 +
1.152 +NS_IMETHODIMP
1.153 +inCSSValueSearch::GetIntResultAt(int32_t aIndex, int32_t *_retval)
1.154 +{
1.155 + return NS_ERROR_NOT_IMPLEMENTED;
1.156 +}
1.157 +
1.158 +NS_IMETHODIMP
1.159 +inCSSValueSearch::GetUIntResultAt(int32_t aIndex, uint32_t *_retval)
1.160 +{
1.161 + return NS_ERROR_NOT_IMPLEMENTED;
1.162 +}
1.163 +
1.164 +///////////////////////////////////////////////////////////////////////////////
1.165 +// inICSSValueSearch
1.166 +
1.167 +NS_IMETHODIMP
1.168 +inCSSValueSearch::GetDocument(nsIDOMDocument** aDocument)
1.169 +{
1.170 + *aDocument = mDocument;
1.171 + NS_IF_ADDREF(*aDocument);
1.172 + return NS_OK;
1.173 +}
1.174 +
1.175 +NS_IMETHODIMP
1.176 +inCSSValueSearch::SetDocument(nsIDOMDocument* aDocument)
1.177 +{
1.178 + mDocument = aDocument;
1.179 + return NS_OK;
1.180 +}
1.181 +
1.182 +NS_IMETHODIMP
1.183 +inCSSValueSearch::GetBaseURL(char16_t** aBaseURL)
1.184 +{
1.185 + if (!(*aBaseURL = ToNewUnicode(mBaseURL)))
1.186 + return NS_ERROR_OUT_OF_MEMORY;
1.187 + return NS_OK;
1.188 +}
1.189 +
1.190 +NS_IMETHODIMP
1.191 +inCSSValueSearch::SetBaseURL(const char16_t* aBaseURL)
1.192 +{
1.193 + mBaseURL.Assign(aBaseURL);
1.194 + return NS_OK;
1.195 +}
1.196 +
1.197 +NS_IMETHODIMP
1.198 +inCSSValueSearch::GetReturnRelativeURLs(bool* aReturnRelativeURLs)
1.199 +{
1.200 + *aReturnRelativeURLs = mReturnRelativeURLs;
1.201 + return NS_OK;
1.202 +}
1.203 +
1.204 +NS_IMETHODIMP
1.205 +inCSSValueSearch::SetReturnRelativeURLs(bool aReturnRelativeURLs)
1.206 +{
1.207 + mReturnRelativeURLs = aReturnRelativeURLs;
1.208 + return NS_OK;
1.209 +}
1.210 +
1.211 +NS_IMETHODIMP
1.212 +inCSSValueSearch::GetNormalizeChromeURLs(bool *aNormalizeChromeURLs)
1.213 +{
1.214 + *aNormalizeChromeURLs = mNormalizeChromeURLs;
1.215 + return NS_OK;
1.216 +}
1.217 +
1.218 +NS_IMETHODIMP
1.219 +inCSSValueSearch::SetNormalizeChromeURLs(bool aNormalizeChromeURLs)
1.220 +{
1.221 + mNormalizeChromeURLs = aNormalizeChromeURLs;
1.222 + return NS_OK;
1.223 +}
1.224 +
1.225 +NS_IMETHODIMP
1.226 +inCSSValueSearch::AddPropertyCriteria(const char16_t *aPropName)
1.227 +{
1.228 + nsCSSProperty prop =
1.229 + nsCSSProps::LookupProperty(nsDependentString(aPropName),
1.230 + nsCSSProps::eIgnoreEnabledState);
1.231 + mProperties[mPropertyCount] = prop;
1.232 + mPropertyCount++;
1.233 + return NS_OK;
1.234 +}
1.235 +
1.236 +NS_IMETHODIMP
1.237 +inCSSValueSearch::GetTextCriteria(char16_t** aTextCriteria)
1.238 +{
1.239 + if (!(*aTextCriteria = ToNewUnicode(mTextCriteria)))
1.240 + return NS_ERROR_OUT_OF_MEMORY;
1.241 + return NS_OK;
1.242 +}
1.243 +
1.244 +NS_IMETHODIMP
1.245 +inCSSValueSearch::SetTextCriteria(const char16_t* aTextCriteria)
1.246 +{
1.247 + mTextCriteria.Assign(aTextCriteria);
1.248 + return NS_OK;
1.249 +}
1.250 +
1.251 +///////////////////////////////////////////////////////////////////////////////
1.252 +// inCSSValueSearch
1.253 +
1.254 +nsresult
1.255 +inCSSValueSearch::InitSearch()
1.256 +{
1.257 + if (mHoldResults) {
1.258 + mResults = new nsTArray<nsAutoString *>();
1.259 + }
1.260 +
1.261 + mResultCount = 0;
1.262 +
1.263 + return NS_OK;
1.264 +}
1.265 +
1.266 +nsresult
1.267 +inCSSValueSearch::KillSearch(int16_t aResult)
1.268 +{
1.269 + mIsActive = true;
1.270 + mObserver->OnSearchEnd(this, aResult);
1.271 +
1.272 + return NS_OK;
1.273 +}
1.274 +
1.275 +nsresult
1.276 +inCSSValueSearch::SearchStyleSheet(nsIDOMCSSStyleSheet* aStyleSheet, nsIURI* aBaseURL)
1.277 +{
1.278 + nsCOMPtr<nsIURI> baseURL;
1.279 + nsAutoString href;
1.280 + aStyleSheet->GetHref(href);
1.281 + if (href.IsEmpty())
1.282 + baseURL = aBaseURL;
1.283 + else
1.284 + NS_NewURI(getter_AddRefs(baseURL), href, nullptr, aBaseURL);
1.285 +
1.286 + nsCOMPtr<nsIDOMCSSRuleList> rules;
1.287 + nsresult rv = aStyleSheet->GetCssRules(getter_AddRefs(rules));
1.288 + NS_ENSURE_SUCCESS(rv, rv);
1.289 +
1.290 + return SearchRuleList(rules, baseURL);
1.291 +}
1.292 +
1.293 +nsresult
1.294 +inCSSValueSearch::SearchRuleList(nsIDOMCSSRuleList* aRuleList, nsIURI* aBaseURL)
1.295 +{
1.296 + uint32_t length;
1.297 + aRuleList->GetLength(&length);
1.298 + for (uint32_t i = 0; i < length; ++i) {
1.299 + nsCOMPtr<nsIDOMCSSRule> rule;
1.300 + aRuleList->Item(i, getter_AddRefs(rule));
1.301 + uint16_t type;
1.302 + rule->GetType(&type);
1.303 + switch (type) {
1.304 + case nsIDOMCSSRule::STYLE_RULE: {
1.305 + nsCOMPtr<nsIDOMCSSStyleRule> styleRule = do_QueryInterface(rule);
1.306 + SearchStyleRule(styleRule, aBaseURL);
1.307 + } break;
1.308 + case nsIDOMCSSRule::IMPORT_RULE: {
1.309 + nsCOMPtr<nsIDOMCSSImportRule> importRule = do_QueryInterface(rule);
1.310 + nsCOMPtr<nsIDOMCSSStyleSheet> childSheet;
1.311 + importRule->GetStyleSheet(getter_AddRefs(childSheet));
1.312 + if (childSheet)
1.313 + SearchStyleSheet(childSheet, aBaseURL);
1.314 + } break;
1.315 + case nsIDOMCSSRule::MEDIA_RULE: {
1.316 + nsCOMPtr<nsIDOMCSSMediaRule> mediaRule = do_QueryInterface(rule);
1.317 + nsCOMPtr<nsIDOMCSSRuleList> childRules;
1.318 + mediaRule->GetCssRules(getter_AddRefs(childRules));
1.319 + SearchRuleList(childRules, aBaseURL);
1.320 + } break;
1.321 + case nsIDOMCSSRule::SUPPORTS_RULE: {
1.322 + nsCOMPtr<nsIDOMCSSSupportsRule> supportsRule = do_QueryInterface(rule);
1.323 + nsCOMPtr<nsIDOMCSSRuleList> childRules;
1.324 + supportsRule->GetCssRules(getter_AddRefs(childRules));
1.325 + SearchRuleList(childRules, aBaseURL);
1.326 + } break;
1.327 + default:
1.328 + // XXX handle nsIDOMCSSRule::PAGE_RULE if we ever support it
1.329 + break;
1.330 + }
1.331 + }
1.332 + return NS_OK;
1.333 +}
1.334 +
1.335 +nsresult
1.336 +inCSSValueSearch::SearchStyleRule(nsIDOMCSSStyleRule* aStyleRule, nsIURI* aBaseURL)
1.337 +{
1.338 + nsCOMPtr<nsIDOMCSSStyleDeclaration> decl;
1.339 + nsresult rv = aStyleRule->GetStyle(getter_AddRefs(decl));
1.340 + NS_ENSURE_SUCCESS(rv, rv);
1.341 +
1.342 + uint32_t length;
1.343 + decl->GetLength(&length);
1.344 + nsAutoString property, value;
1.345 + for (uint32_t i = 0; i < length; ++i) {
1.346 + decl->Item(i, property);
1.347 + // XXX This probably ought to use GetPropertyCSSValue if it were
1.348 + // implemented.
1.349 + decl->GetPropertyValue(property, value);
1.350 + SearchStyleValue(value, aBaseURL);
1.351 + }
1.352 + return NS_OK;
1.353 +}
1.354 +
1.355 +nsresult
1.356 +inCSSValueSearch::SearchStyleValue(const nsAFlatString& aValue, nsIURI* aBaseURL)
1.357 +{
1.358 + if (StringBeginsWith(aValue, NS_LITERAL_STRING("url(")) &&
1.359 + StringEndsWith(aValue, NS_LITERAL_STRING(")"))) {
1.360 + const nsASingleFragmentString &url =
1.361 + Substring(aValue, 4, aValue.Length() - 5);
1.362 + // XXXldb Need to do more with |mReturnRelativeURLs|, perhaps?
1.363 + nsCOMPtr<nsIURI> uri;
1.364 + nsresult rv = NS_NewURI(getter_AddRefs(uri), url, nullptr, aBaseURL);
1.365 + NS_ENSURE_SUCCESS(rv, rv);
1.366 + nsAutoCString spec;
1.367 + uri->GetSpec(spec);
1.368 + nsAutoString *result = new NS_ConvertUTF8toUTF16(spec);
1.369 + if (mReturnRelativeURLs)
1.370 + EqualizeURL(result);
1.371 + mResults->AppendElement(result);
1.372 + ++mResultCount;
1.373 + }
1.374 +
1.375 + return NS_OK;
1.376 +}
1.377 +
1.378 +nsresult
1.379 +inCSSValueSearch::EqualizeURL(nsAutoString* aURL)
1.380 +{
1.381 + if (mNormalizeChromeURLs) {
1.382 + if (aURL->Find("chrome://", false, 0, 1) >= 0) {
1.383 + uint32_t len = aURL->Length();
1.384 + char16_t* result = new char16_t[len-8];
1.385 + const char16_t* src = aURL->get();
1.386 + uint32_t i = 9;
1.387 + uint32_t milestone = 0;
1.388 + uint32_t s = 0;
1.389 + while (i < len) {
1.390 + if (src[i] == '/') {
1.391 + milestone += 1;
1.392 + }
1.393 + if (milestone != 1) {
1.394 + result[i-9-s] = src[i];
1.395 + } else {
1.396 + s++;
1.397 + }
1.398 + i++;
1.399 + }
1.400 + result[i-9-s] = 0;
1.401 +
1.402 + aURL->Assign(result);
1.403 + delete [] result;
1.404 + }
1.405 + } else {
1.406 + }
1.407 +
1.408 + return NS_OK;
1.409 +}
