1 files changed, 144 insertions, 0 deletions
diff --git a/docshell/base/IHistory.h b/docshell/base/IHistory.h
new file mode 100644
index 000000000..b1f5bb983
--- /dev/null
+++ b/docshell/base/IHistory.h
@@ -0,0 +1,144 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_IHistory_h_
+#define mozilla_IHistory_h_
+
+#include "nsISupports.h"
+
+class nsIURI;
+
+namespace mozilla {
+
+namespace dom {
+class Link;
+} // namespace dom
+
+// 0057c9d3-b98e-4933-bdc5-0275d06705e1
+#define IHISTORY_IID \
+  {0x0057c9d3, 0xb98e, 0x4933, {0xbd, 0xc5, 0x02, 0x75, 0xd0, 0x67, 0x05, 0xe1}}
+
+class IHistory : public nsISupports
+{
+public:
+  NS_DECLARE_STATIC_IID_ACCESSOR(IHISTORY_IID)
+
+  /**
+   * Registers the Link for notifications about the visited-ness of aURI.
+   * Consumers should assume that the URI is unvisited after calling this, and
+   * they will be notified if that state (unvisited) changes by having
+   * SetLinkState called on themselves.  This function is guaranteed to run to
+   * completion before aLink is notified.  After the node is notified, it will
+   * be unregistered.
+   *
+   * @note SetLinkState must not call RegisterVisitedCallback or
+   *       UnregisterVisitedCallback.
+   *
+   * @pre aURI must not be null.
+   * @pre aLink may be null only in the parent (chrome) process.
+   *
+   * @param aURI
+   *        The URI to check.
+   * @param aLink
+   *        The link to update whenever the history status changes.  The
+   *        implementation will only hold onto a raw pointer, so if this
+   *        object should be destroyed, be sure to call
+   *        UnregisterVistedCallback first.
+   */
+  NS_IMETHOD RegisterVisitedCallback(nsIURI* aURI, dom::Link* aLink) = 0;
+
+  /**
+   * Unregisters a previously registered Link object.  This must be called
+   * before destroying the registered object.
+   *
+   * @pre aURI must not be null.
+   * @pre aLink must not be null.
+   *
+   * @param aURI
+   *        The URI that aLink was registered for.
+   * @param aLink
+   *        The link object to unregister for aURI.
+   */
+  NS_IMETHOD UnregisterVisitedCallback(nsIURI* aURI, dom::Link* aLink) = 0;
+
+  enum VisitFlags
+  {
+    /**
+     * Indicates whether the URI was loaded in a top-level window.
+     */
+    TOP_LEVEL = 1 << 0,
+    /**
+     * Indicates whether the URI was loaded as part of a permanent redirect.
+     */
+    REDIRECT_PERMANENT = 1 << 1,
+    /**
+     * Indicates whether the URI was loaded as part of a temporary redirect.
+     */
+    REDIRECT_TEMPORARY = 1 << 2,
+    /**
+     * Indicates the URI is redirecting  (Response code 3xx).
+     */
+    REDIRECT_SOURCE = 1 << 3,
+    /**
+     * Indicates the URI caused an error that is unlikely fixable by a
+     * retry, like a not found or unfetchable page.
+     */
+    UNRECOVERABLE_ERROR = 1 << 4
+  };
+
+  /**
+   * Adds a history visit for the URI.
+   *
+   * @pre aURI must not be null.
+   *
+   * @param aURI
+   *        The URI of the page being visited.
+   * @param aLastVisitedURI
+   *        The URI of the last visit in the chain.
+   * @param aFlags
+   *        The VisitFlags describing this visit.
+   */
+  NS_IMETHOD VisitURI(nsIURI* aURI,
+                      nsIURI* aLastVisitedURI,
+                      uint32_t aFlags) = 0;
+
+  /**
+   * Set the title of the URI.
+   *
+   * @pre aURI must not be null.
+   *
+   * @param aURI
+   *        The URI to set the title for.
+   * @param aTitle
+   *        The title string.
+   */
+  NS_IMETHOD SetURITitle(nsIURI* aURI, const nsAString& aTitle) = 0;
+
+  /**
+   * Notifies about the visited status of a given URI.
+   *
+   * @param aURI
+   *        The URI to notify about.
+   */
+  NS_IMETHOD NotifyVisited(nsIURI* aURI) = 0;
+};
+
+NS_DEFINE_STATIC_IID_ACCESSOR(IHistory, IHISTORY_IID)
+
+#define NS_DECL_IHISTORY \
+  NS_IMETHOD RegisterVisitedCallback(nsIURI* aURI, \
+                                     mozilla::dom::Link* aContent) override; \
+  NS_IMETHOD UnregisterVisitedCallback(nsIURI* aURI, \
+                                       mozilla::dom::Link* aContent) override; \
+  NS_IMETHOD VisitURI(nsIURI* aURI, \
+                      nsIURI* aLastVisitedURI, \
+                      uint32_t aFlags) override; \
+  NS_IMETHOD SetURITitle(nsIURI* aURI, const nsAString& aTitle) override; \
+  NS_IMETHOD NotifyVisited(nsIURI* aURI) override;
+
+} // namespace mozilla
+
+#endif // mozilla_IHistory_h_