C++ nsTHashtable::Contains方法代码示例

void
nsWindowRoot::GetEnabledDisabledCommandsForControllers(nsIControllers* aControllers,
                                                       nsTHashtable<nsCharPtrHashKey>& aCommandsHandled,
                                                       nsTArray<nsCString>& aEnabledCommands,
                                                       nsTArray<nsCString>& aDisabledCommands)
{
  uint32_t controllerCount;
  aControllers->GetControllerCount(&controllerCount);
  for (uint32_t c = 0; c < controllerCount; c++) {
    nsCOMPtr<nsIController> controller;
    aControllers->GetControllerAt(c, getter_AddRefs(controller));

    nsCOMPtr<nsICommandController> commandController(do_QueryInterface(controller));
    if (commandController) {
      uint32_t commandsCount;
      char** commands;
      if (NS_SUCCEEDED(commandController->GetSupportedCommands(&commandsCount, &commands))) {
        for (uint32_t e = 0; e < commandsCount; e++) {
          // Use a hash to determine which commands have already been handled by
          // earlier controllers, as the earlier controller's result should get
          // priority.
          if (!aCommandsHandled.Contains(commands[e])) {
            aCommandsHandled.PutEntry(commands[e]);

            bool enabled = false;
            controller->IsCommandEnabled(commands[e], &enabled);

            const nsDependentCSubstring commandStr(commands[e], strlen(commands[e]));
            if (enabled) {
              aEnabledCommands.AppendElement(commandStr);
            } else {
              aDisabledCommands.AppendElement(commandStr);
            }
          }
        }

        NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(commandsCount, commands);
      }
    }
  }
}

// Parses MANIFEST.MF and verifies the contents of the unpacked files
// listed in the manifest.
// The filenames of all entries will be returned in aMfItems. aBuf must
// be a pre-allocated scratch buffer that is used for doing I/O.
nsresult
ParseMFUnpacked(const char* aFilebuf, nsIFile* aDir,
                /*out*/ nsTHashtable<nsStringHashKey>& aMfItems,
                ScopedAutoSECItem& aBuf)
{
  nsresult rv;

  const char* nextLineStart = aFilebuf;

  rv = CheckManifestVersion(nextLineStart, NS_LITERAL_CSTRING(JAR_MF_HEADER));
  if (NS_FAILED(rv)) {
    return rv;
  }

  // Skip the rest of the header section, which ends with a blank line.
  {
    nsAutoCString line;
    do {
      rv = ReadLine(nextLineStart, line);
      if (NS_FAILED(rv)) {
        return rv;
      }
    } while (line.Length() > 0);

    // Manifest containing no file entries is OK, though useless.
    if (*nextLineStart == '\0') {
      return NS_OK;
    }
  }

  nsAutoString curItemName;
  ScopedAutoSECItem digest;

  for (;;) {
    nsAutoCString curLine;
    rv = ReadLine(nextLineStart, curLine);
    if (NS_FAILED(rv)) {
      return rv;
    }

    if (curLine.Length() == 0) {
      // end of section (blank line or end-of-file)

      if (curItemName.Length() == 0) {
        // '...Each section must start with an attribute with the name as
        // "Name",...', so every section must have a Name attribute.
        return NS_ERROR_SIGNED_JAR_MANIFEST_INVALID;
      }

      if (digest.len == 0) {
        // We require every entry to have a digest, since we require every
        // entry to be signed and we don't allow duplicate entries.
        return NS_ERROR_SIGNED_JAR_MANIFEST_INVALID;
      }

      if (aMfItems.Contains(curItemName)) {
        // Duplicate entry
        return NS_ERROR_SIGNED_JAR_MANIFEST_INVALID;
      }

      // Verify that the file's content digest matches the digest from this
      // MF section.
      rv = VerifyFileContentDigest(aDir, curItemName, digest, aBuf);
      if (NS_FAILED(rv)) {
        return rv;
      }

      aMfItems.PutEntry(curItemName);

      if (*nextLineStart == '\0') {
        // end-of-file
        break;
      }

      // reset so we know we haven't encountered either of these for the next
      // item yet.
      curItemName.Truncate();
      digest.reset();

      continue; // skip the rest of the loop below
    }

    nsAutoCString attrName;
    nsAutoCString attrValue;
    rv = ParseAttribute(curLine, attrName, attrValue);
    if (NS_FAILED(rv)) {
      return rv;
    }

    // Lines to look for:

    // (1) Digest:
    if (attrName.LowerCaseEqualsLiteral("sha1-digest")) {
      if (digest.len > 0) {
        // multiple SHA1 digests in section
        return NS_ERROR_SIGNED_JAR_MANIFEST_INVALID;
//.........这里部分代码省略.........