tor-browser

The Tor Browser
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NavigationDestination.cpp (3695B)

      1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim:set ts=2 sw=2 sts=2 et cindent: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #include "mozilla/dom/NavigationDestination.h"
      8 
      9 #include "mozilla/ErrorResult.h"
     10 #include "mozilla/dom/NavigationDestinationBinding.h"
     11 #include "mozilla/dom/NavigationHistoryEntry.h"
     12 #include "nsError.h"
     13 #include "nsIURI.h"
     14 #include "nsReadableUtils.h"
     15 
     16 namespace mozilla::dom {
     17 
     18 NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(NavigationDestination, mGlobal, mEntry,
     19                                      mState)
     20 NS_IMPL_CYCLE_COLLECTING_ADDREF(NavigationDestination)
     21 NS_IMPL_CYCLE_COLLECTING_RELEASE(NavigationDestination)
     22 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(NavigationDestination)
     23  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
     24  NS_INTERFACE_MAP_ENTRY(nsISupports)
     25 NS_INTERFACE_MAP_END
     26 
     27 NavigationDestination::NavigationDestination(
     28    nsIGlobalObject* aGlobal, nsIURI* aURI, NavigationHistoryEntry* aEntry,
     29    nsIStructuredCloneContainer* aState, bool aIsSameDocument)
     30    : mGlobal(aGlobal),
     31      mURL(aURI),
     32      mEntry(aEntry),
     33      mState(aState),
     34      mIsSameDocument(aIsSameDocument) {}
     35 
     36 // https://html.spec.whatwg.org/#dom-navigationdestination-url
     37 void NavigationDestination::GetUrl(nsString& aURL) const {
     38  nsAutoCString uri;
     39  nsresult rv = mURL->GetSpec(uri);
     40  if (NS_WARN_IF(NS_FAILED(rv))) {
     41    aURL.Truncate();
     42    return;
     43  }
     44 
     45  CopyUTF8toUTF16(uri, aURL);
     46 }
     47 
     48 // https://html.spec.whatwg.org/#dom-navigationdestination-key
     49 void NavigationDestination::GetKey(nsString& aKey) const {
     50  if (!mEntry) {
     51    aKey.Truncate();
     52    return;
     53  }
     54 
     55  mEntry->GetKey(aKey);
     56 }
     57 
     58 // https://html.spec.whatwg.org/#dom-navigationdestination-id
     59 void NavigationDestination::GetId(nsString& aId) const {
     60  if (!mEntry) {
     61    aId.Truncate();
     62    return;
     63  }
     64 
     65  mEntry->GetId(aId);
     66 }
     67 
     68 // https://html.spec.whatwg.org/#dom-navigationdestination-index
     69 int64_t NavigationDestination::Index() const {
     70  if (!mEntry) {
     71    return -1;
     72  }
     73 
     74  return mEntry->Index();
     75 }
     76 
     77 // https://html.spec.whatwg.org/#dom-navigationdestination-samedocument
     78 bool NavigationDestination::SameDocument() const { return mIsSameDocument; }
     79 
     80 // https://html.spec.whatwg.org/#dom-navigationdestination-getstate
     81 void NavigationDestination::GetState(JSContext* aCx,
     82                                     JS::MutableHandle<JS::Value> aRetVal,
     83                                     ErrorResult& aRv) const {
     84  if (!mState) {
     85    return;
     86  }
     87  nsresult rv = mState->DeserializeToJsval(aCx, aRetVal);
     88  if (NS_FAILED(rv)) {
     89    // nsStructuredCloneContainer::DeserializeToJsval suppresses exceptions, so
     90    // the best we can do is just re-throw the NS_ERROR_DOM_DATA_CLONE_ERR. When
     91    // nsStructuredCloneContainer::DeserializeToJsval throws better exceptions
     92    // this should too.
     93    // See also: NavigationHistoryEntry::GetState
     94    aRv.Throw(rv);
     95    return;
     96  }
     97 }
     98 
     99 void NavigationDestination::SetState(nsIStructuredCloneContainer* aState) {
    100  mState = aState;
    101 }
    102 
    103 JSObject* NavigationDestination::WrapObject(JSContext* aCx,
    104                                            JS::Handle<JSObject*> aGivenProto) {
    105  return NavigationDestination_Binding::Wrap(aCx, this, aGivenProto);
    106 }
    107 
    108 nsIGlobalObject* NavigationDestination::GetParentObject() { return mGlobal; }
    109 
    110 NavigationHistoryEntry* NavigationDestination::GetEntry() const {
    111  return mEntry;
    112 }
    113 
    114 nsIURI* NavigationDestination::GetURL() const { return mURL; }
    115 
    116 void NavigationDestination::SetURL(nsIURI* aURI) { mURL = aURI; }
    117 
    118 }  // namespace mozilla::dom