// Copyright (c) 2012 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Intentionally no include guards because this file is meant to be included // inside a macro to generate enum values. // Types of transitions between pages. These are stored in the history // database to separate visits, and are reported by the renderer for page // navigations. // // WARNING: don't change these numbers. They are written directly into the // history database, so future versions will need the same values to match // the enums. // // A type is made of a core value and a set of qualifiers. A type has one // core value and 0 or or more qualifiers. // User got to this page by clicking a link on another page. PAGE_TRANSITION(LINK, 0) // User got this page by typing the URL in the URL bar. This should not be // used for cases where the user selected a choice that didn't look at all // like a URL; see GENERATED below. // // We also use this for other "explicit" navigation actions. PAGE_TRANSITION(TYPED, 1) // User got to this page through a suggestion in the UI, for example) // through the destinations page. PAGE_TRANSITION(AUTO_BOOKMARK, 2) // This is a subframe navigation. This is any content that is automatically // loaded in a non-toplevel frame. For example, if a page consists of // several frames containing ads, those ad URLs will have this transition // type. The user may not even realize the content in these pages is a // separate frame, so may not care about the URL (see MANUAL below). PAGE_TRANSITION(AUTO_SUBFRAME, 3) // For subframe navigations that are explicitly requested by the user and // generate new navigation entries in the back/forward list. These are // probably more important than frames that were automatically loaded in // the background because the user probably cares about the fact that this // link was loaded. PAGE_TRANSITION(MANUAL_SUBFRAME, 4) // User got to this page by typing in the URL bar and selecting an entry // that did not look like a URL. For example, a match might have the URL // of a Google search result page, but appear like "Search Google for ...". // These are not quite the same as TYPED navigations because the user // didn't type or see the destination URL. // See also KEYWORD. PAGE_TRANSITION(GENERATED, 5) // This is a toplevel navigation. This is any content that is automatically // loaded in a toplevel frame. For example, opening a tab to show the ASH // screen saver, opening the devtools window, opening the NTP after the safe // browsing warning, opening web-based dialog boxes are examples of // AUTO_TOPLEVEL navigations. PAGE_TRANSITION(AUTO_TOPLEVEL, 6) // The user filled out values in a form and submitted it. NOTE that in // some situations submitting a form does not result in this transition // type. This can happen if the form uses script to submit the contents. PAGE_TRANSITION(FORM_SUBMIT, 7) // The user "reloaded" the page, either by hitting the reload button or by // hitting enter in the address bar. NOTE: This is distinct from the // concept of whether a particular load uses "reload semantics" (i.e. // bypasses cached data). For this reason, lots of code needs to pass // around the concept of whether a load should be treated as a "reload" // separately from their tracking of this transition type, which is mainly // used for proper scoring for consumers who care about how frequently a // user typed/visited a particular URL. // // SessionRestore and undo tab close use this transition type too. PAGE_TRANSITION(RELOAD, 8) // The url was generated from a replaceable keyword other than the default // search provider. If the user types a keyword (which also applies to // tab-to-search) in the omnibox this qualifier is applied to the transition // type of the generated url. TemplateURLModel then may generate an // additional visit with a transition type of KEYWORD_GENERATED against the // url 'http://' + keyword. For example, if you do a tab-to-search against // wikipedia the generated url has a transition qualifer of KEYWORD, and // TemplateURLModel generates a visit for 'wikipedia.org' with a transition // type of KEYWORD_GENERATED. PAGE_TRANSITION(KEYWORD, 9) // Corresponds to a visit generated for a keyword. See description of // KEYWORD for more details. PAGE_TRANSITION(KEYWORD_GENERATED, 10) // ADDING NEW CORE VALUE? Be sure to update the LAST_CORE and CORE_MASK // values below. Also update CoreTransitionString(). PAGE_TRANSITION(LAST_CORE, PAGE_TRANSITION_KEYWORD_GENERATED) PAGE_TRANSITION(CORE_MASK, 0xFF) // Qualifiers // Any of the core values above can be augmented by one or more qualifiers. // These qualifiers further define the transition. // A managed user attempted to visit a URL but was blocked. PAGE_TRANSITION(BLOCKED, 0x00800000) // User used the Forward or Back button to navigate among browsing history. PAGE_TRANSITION(FORWARD_BACK, 0x01000000) // User used the address bar to trigger this navigation. PAGE_TRANSITION(FROM_ADDRESS_BAR, 0x02000000) // User is navigating to the home page. PAGE_TRANSITION(HOME_PAGE, 0x04000000) // The transition originated from an external application; the exact definition // of this is embedder dependent. PAGE_TRANSITION(FROM_API, 0x08000000) // The beginning of a navigation chain. PAGE_TRANSITION(CHAIN_START, 0x10000000) // The last transition in a redirect chain. PAGE_TRANSITION(CHAIN_END, 0x20000000) // Redirects caused by JavaScript or a meta refresh tag on the page. PAGE_TRANSITION(CLIENT_REDIRECT, 0x40000000) // Redirects sent from the server by HTTP headers. It might be nice to // break this out into 2 types in the future, permanent or temporary, if we // can get that information from WebKit. PAGE_TRANSITION(SERVER_REDIRECT, 0x80000000) // Used to test whether a transition involves a redirect. PAGE_TRANSITION(IS_REDIRECT_MASK, 0xC0000000) // General mask defining the bits used for the qualifiers. PAGE_TRANSITION(QUALIFIER_MASK, 0xFFFFFF00)