// Copyright © 2014 The CefSharp Authors. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
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using System;
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namespace CefSharp
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{
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/// <summary>
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/// Transition type for a request. Made up of one source value and 0 or more qualifiers.
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/// </summary>
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[Flags]
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public enum TransitionType : uint
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{
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/// <summary>
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/// Source is a link click or the JavaScript window.open function. This is
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/// also the default value for requests like sub-resource loads that are not navigations.
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/// </summary>
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LinkClicked = 0,
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/// <summary>
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/// Source is some other "explicit" navigation action such as creating a new
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/// browser or using the LoadURL function. This is also the default value
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/// for navigations where the actual type is unknown.
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/// </summary>
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Explicit = 1,
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/// <summary>
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/// Source is a subframe navigation. This is any content that is automatically
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/// loaded in a non-toplevel frame. For example, if a page consists of several
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/// frames containing ads, those ad URLs will have this transition type.
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/// The user may not even realize the content in these pages is a separate
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/// frame, so may not care about the URL.
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/// </summary>
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AutoSubFrame = 3,
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/// <summary>
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/// Source is a subframe navigation explicitly requested by the user that will
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/// generate new navigation entries in the back/forward list. These are
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/// probably more important than frames that were automatically loaded in
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/// the background because the user probably cares about the fact that this
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/// link was loaded.
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/// </summary>
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ManualSubFrame = 4,
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/// <summary>
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/// Source is a form submission by the user. NOTE: In some situations
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/// submitting a form does not result in this transition type. This can happen
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/// if the form uses a script to submit the contents.
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/// </summary>
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FormSubmit = 7,
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/// <summary>
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/// Source is a "reload" of the page via the Reload function or by re-visiting
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/// the same URL. NOTE: This is distinct from the concept of whether a
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/// particular load uses "reload semantics" (i.e. bypasses cached data).
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/// </summary>
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Reload = 8,
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/// <summary>
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/// General mask defining the bits used for the source values.
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/// </summary>
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SourceMask = 0xFF,
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/// <summary>
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/// Attempted to visit a URL but was blocked.
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/// </summary>
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Blocked = 0x00800000,
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/// <summary>
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/// Used the Forward or Back function to navigate among browsing history.
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/// </summary>
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ForwardBack = 0x01000000,
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/// <summary>
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/// The beginning of a navigation chain.
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/// </summary>
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ChainStart = 0x10000000,
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/// <summary>
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/// The last transition in a redirect chain.
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/// </summary>
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ChainEnd = 0x20000000,
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/// <summary>
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/// Redirects caused by JavaScript or a meta refresh tag on the page.
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/// </summary>
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ClientRedirect = 0x40000000,
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/// <summary>
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/// Redirects sent from the server by HTTP headers.
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/// </summary>
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ServerRedirect = 0x80000000,
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/// <summary>
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/// Used to test whether a transition involves a redirect.
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/// </summary>
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IsRedirect = 0xC0000000,
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/// <summary>
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/// General mask defining the bits used for the qualifiers.
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/// </summary>
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QualifierMask = 0xFFFFFF00
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};
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}
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