tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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txNodeTypeTest.cpp (2529B)

      1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* This Source Code Form is subject to the terms of the Mozilla Public
      3 * License, v. 2.0. If a copy of the MPL was not distributed with this
      4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      5 
      6 #include "nsAtom.h"
      7 #include "txExpr.h"
      8 #include "txIXPathContext.h"
      9 #include "txXPathTreeWalker.h"
     10 
     11 nsresult txNodeTypeTest::matches(const txXPathNode& aNode,
     12                                 txIMatchContext* aContext, bool& aMatched) {
     13  switch (mNodeType) {
     14    case COMMENT_TYPE: {
     15      aMatched = txXPathNodeUtils::isComment(aNode);
     16      return NS_OK;
     17    }
     18    case TEXT_TYPE: {
     19      aMatched = txXPathNodeUtils::isText(aNode);
     20      if (aMatched) {
     21        bool allowed;
     22        nsresult rv = aContext->isStripSpaceAllowed(aNode, allowed);
     23        NS_ENSURE_SUCCESS(rv, rv);
     24 
     25        aMatched = !allowed;
     26      }
     27      return NS_OK;
     28    }
     29    case PI_TYPE: {
     30      aMatched =
     31          txXPathNodeUtils::isProcessingInstruction(aNode) &&
     32          (!mNodeName || txXPathNodeUtils::localNameEquals(aNode, mNodeName));
     33      return NS_OK;
     34    }
     35    case NODE_TYPE: {
     36      if (txXPathNodeUtils::isText(aNode)) {
     37        bool allowed;
     38        nsresult rv = aContext->isStripSpaceAllowed(aNode, allowed);
     39        NS_ENSURE_SUCCESS(rv, rv);
     40 
     41        aMatched = !allowed;
     42      } else {
     43        aMatched = true;
     44      }
     45      return NS_OK;
     46    }
     47  }
     48 
     49  MOZ_ASSERT_UNREACHABLE("Didn't deal with all values of the NodeType enum!");
     50 
     51  aMatched = false;
     52  return NS_OK;
     53 }
     54 
     55 txNodeTest::NodeTestType txNodeTypeTest::getType() { return NODETYPE_TEST; }
     56 
     57 /*
     58 * Returns the default priority of this txNodeTest
     59 */
     60 double txNodeTypeTest::getDefaultPriority() { return mNodeName ? 0 : -0.5; }
     61 
     62 bool txNodeTypeTest::isSensitiveTo(Expr::ContextSensitivity aContext) {
     63  return !!(aContext & Expr::NODE_CONTEXT);
     64 }
     65 
     66 #ifdef TX_TO_STRING
     67 void txNodeTypeTest::toString(nsAString& aDest) {
     68  switch (mNodeType) {
     69    case COMMENT_TYPE:
     70      aDest.AppendLiteral("comment()");
     71      break;
     72    case TEXT_TYPE:
     73      aDest.AppendLiteral("text()");
     74      break;
     75    case PI_TYPE:
     76      aDest.AppendLiteral("processing-instruction(");
     77      if (mNodeName) {
     78        nsAutoString str;
     79        mNodeName->ToString(str);
     80        aDest.Append(char16_t('\''));
     81        aDest.Append(str);
     82        aDest.Append(char16_t('\''));
     83      }
     84      aDest.Append(char16_t(')'));
     85      break;
     86    case NODE_TYPE:
     87      aDest.AppendLiteral("node()");
     88      break;
     89  }
     90 }
     91 #endif