lizeb@chromium.org input-dev@chromium.org The type of input event being dispatched in WidgetInputHandlerManager. Subsampled at 10%. hdchuong@google.com essential-inputs-team@google.com Records the file extension format for {Result} IME commitContent (image/media insertion) attempts. Logged on Android when an IME commits rich media content via InputConnection#commitContent. kouhei@chromium.org gastonr@microsoft.com gerchiko@microsoft.com input-dev@chromium.org Record the maximum number of active touch points allowed for each pointer digitizer found at startup or connected following startup, grouping results by {PointerDigitizerType}. Currently this metric is only available on Windows. This is logged once for every pointer digitizer discovered when initializing the singleton `TouchUiController` during startup, and once for each pointer digitizer that's connected afterwards in response to OS specific events. NOTE: this metric was expired from 2025-03-01 to 2025-11-24. kouhei@chromium.org gastonr@microsoft.com gerchiko@microsoft.com input-dev@chromium.org Record the maximum number of simultaneous contacts supported by the pointer digitizer that supports the most simultaneous contacts among all pointer digitizers available to the system at startup. e.g, If the system only has single-touch digitizers, the recorded value is 1. If the system has multi-touch digitizers, the recorded value is the maximum number of contacts supported by the multi-touch digitizer that supports the most contacts. Currently this metric is only available on Windows. This is logged only once per browser session, when initializing the singleton `TouchUiController` at startup. NOTE: this metric was expired from 2025-03-01 to 2025-11-24. kouhei@chromium.org gastonr@microsoft.com gerchiko@microsoft.com input-dev@chromium.org Record each pointer digitizer found at startup, and each pointer digitizer connected or disconnected following startup, grouping by {Interaction}. Currently this metric is only available on Windows. OnConnected: Logged once for each pointer digitizer that's been connected after initialization, in response to OS specific events. OnDisconnected: Logged once for each pointer digitizer that's been disconnected after initialization, in response to OS specific events. OnStartup : Logged only once per browser session for each pointer digitizer discovered when initializing the singleton `TouchUiController` at startup. NOTE: this metric was expired from 2025-03-01 to 2025-11-24. anandrv@google.com clank-performance-team@google.com input-dev@chromium.org Records the Y scroll delta of the first gesture scroll update event in a touch sequence. Subsampled to 1/100. flackr@chromium.org input-dev@chromium.org Records the primary pointer type reported to the webpage. Recorded once per tab creation and again for each tab anytime preferences are changed. This is often used as the authoritative pointer type to style the page for. flackr@chromium.org input-dev@chromium.org Records all available pointer types reported to the webpage. Recorded once per tab creation and again for each tab anytime preferences are changed. These can be observed by a webpage by using the any-pointer media query to style the page based on the expected input types. alexmitra@chromium.org flackr@chromium.org peconn@chromium.org Records tool type values which are sent to Chrome or WebView from Android when a touch event happens. This includes both valid and invalid tool types and can be used both to see which invalid tool types are being sent and the proportion of touch events that are sent with invalid tool types. shend@chromium.org essential-inputs-team@google.com The number of enabled input methods. Recorded when the user logs in to Chrome OS. The enabled input methods are selected by user in the language settings page on Chrome OS. NOTE: 'Active' in the metric name is a legacy misnomer; 'active' should refer to just the single current aka. activated input method that is one of the enabled input methods whose total count is being tracked by this metric. jopalmer@google.com essential-inputs-team@google.com The actions taken by assistive autocorrect, such as underlining a word. Recorded after an action is performed. jopalmer@google.com essential-inputs-team@google.com Warning: this histogram was expired from 2022-12 to 2023-11; data may be missing. The actions taken by assistive autocorrect, such as underlining a word. Recorded after an action is performed when the Virtual Keyboard is visible. mehrab@google.com essential-inputs-team@google.com Tracks when assistive autocorrect is performed by a text input client. Recorded when autocorrect is triggered by users with the feature enabled using a text input client that's being tracked. jopalmer@google.com essential-inputs-team@google.com Tracks time between when autocorrect occurs and user clicks to undo the autocorrect. mehrab@google.com essential-inputs-team@google.com The histogram records assistive autocorrect actions such as showing, reverting, rejecting and accepting an autocorrect suggestion. The actions are recorded after they are performed on Physical Keyboard inputs. zacpartridge@google.com essential-inputs-team@google.com The histogram records assistive autocorrect actions such as showing, reverting, rejecting and accepting an autocorrect suggestion. The actions are recorded after they are performed on Physical Keyboard inputs if autocorrect was enabled by default. mehrab@google.com essential-inputs-team@google.com The histogram records assistive autocorrect actions such as showing, reverting, rejecting and accepting an autocorrect suggestion. The actions are recorded after they are performed on Virtual Keyboard inputs. zacpartridge@google.com essential-inputs-team@google.com This records the length of the original word alligned with distance between the original and suggested new word in the form of a flattened 2d array. The two variables are stored as '(length-1)*MAX_LENGTH + (distance-1)'. The data is expected to be fairly sparse and it is guaranteed that all values will be in the range (0, 1000) (assuming MAX_LENGTH is not increased over 31). The metric is recorded once an autocorrect is accepted or rejected by user interactions. zacpartridge@google.com essential-inputs-team@google.com This records the length of the word suggested by autocorrect. The metric is recorded once an autocorrect is accepted or rejected by user interactions. mehrab@google.com essential-inputs-team@google.com The histogram records different internal states that autocorrect encounters while physical keyboard is used. These states include errors such as bad arguments, null input context, problems preventing from showing or hiding undo window. Also, events such as accepting suggestion, rejecting suggestion, showing/hiding/highlighting undo window, underlining suggestions and handling autocorrect suggestions, focusing on a text field, bluring a text field and having a suggestion in a text field. It recoreds the states everytime that HandleAutocorrect, OnBlur, OnFocus, and OnSurroundingTextChanged events are triggered while physical keyboard is visible. zacpartridge@google.com essential-inputs-team@google.com The histogram records different internal states that autocorrect encounters while physical keyboard is used. These states include errors such as bad arguments, null input context, problems preventing from showing or hiding undo window. Also, events such as accepting suggestion, rejecting suggestion, showing/hiding/highlighting undo window, underlining suggestions and handling autocorrect suggestions, focusing on a text field, bluring a text field and having a suggestion in a text field. It recoreds the states everytime that HandleAutocorrect, OnBlur, OnFocus, and OnSurroundingTextChanged events are triggered while physical keyboard is visible if autocorrect was enabled by default. mehrab@google.com essential-inputs-team@google.com The histogram records different internal states that autocorrect encounters while virtual keyboard is used. These states include errors such as bad arguments, null input context, problems preventing from showing or hiding undo window. Also, events such as accepting suggestion, rejecting suggestion, showing/hiding/highlighting undo window, underlining suggestion and handling autocorrect suggestion, focusing on a text field, bluring a text field and having a suggestion in a text field. It records the states everytime that HandleAutocorrect, OnBlur, OnFocus, and OnSurroundingTextChanged events are called while virtual keyboard is visible. mehrab@google.com essential-inputs-team@google.com Tracks duration between providing an autocorrect suggestion to its acceptance. It is recorded every time that an autocorrect suggestion is implicitly accepted. zacpartridge@google.com essential-inputs-team@google.com Tracks duration between providing an autocorrect suggestion to its acceptance. It is recorded every time that an autocorrect suggestion is implicitly accepted if autocorrect was enabled by default. mehrab@google.com essential-inputs-team@google.com Tracks time between providing an autocorrect suggestion to exiting the text field. It is recorded every time that a user leaves a text field while having a pending autocorrect. zacpartridge@google.com essential-inputs-team@google.com Tracks time between providing an autocorrect suggestion to exiting the text field. It is recorded every time that a user leaves a text field while having a pending autocorrect if autocorrect was enabled by default. mehrab@google.com essential-inputs-team@google.com Tracks duration of pending autocorrect suggestions for physical keyboard inputs. The duration is measured from the time of showing an autocorrect underline to the time of clearing it. It is recorded every time that an action such as reject, accept, exit field or an internal error resolves a pending autocorrect suggestion for physical keyboard inputs. mehrab@google.com essential-inputs-team@google.com Tracks time between providing an autocorrect suggestion to its implicit rejection or undone. It is recorded every time that an autocorrect suggestion is implicitly rejected or undone. mehrab@google.com essential-inputs-team@google.com Tracks time between providing an autocorrect suggestion to its implicit rejection or undone. It is recorded every time that an autocorrect suggestion is implicitly rejected or undone if autocorrect was enabled by default. mehrab@google.com essential-inputs-team@google.com Tracks duration of pending autocorrect suggestions for virtual keyboard inputs. The duration is measured from the time of showing an autocorrect underline to the time of clearing it. It is recorded every time that an action such as reject, accept, exit field or an internal error resolves a pending autocorrect suggestion for virtual keyboard inputs. mehrab@google.com essential-inputs-team@google.com This histogram records the value of the user's physical keyboard autocorrect preference once when an input method is activated. The metric is broken down into two extra buckets, English and All languages. When a user has an english based input method enabled, the metric will be recorded twice, once for the English bucket and once for the All bucket. All other input methods will be recorded once in the All bucket. mehrab@google.com essential-inputs-team@google.com The histogram records charactersitics of original text and suggested text for an accepted autocorrect suggestion on Virtual Keyboard. These measurements highlight the changes applied by autocorrect on the original text such as changing accent, lower casing, capitalizing or mutating characters. It records everytime that an autocorrect suggestion is accepted by user interactions. mehrab@google.com essential-inputs-team@google.com The histogram records charactersitics of original text and suggested text for an accepted autocorrect suggestion on Virtual Keyboard. These measurements highlight the changes applied by autocorrect on the original text such as changing accent, lower casing, capitalizing or mutating characters. It records everytime that an autocorrect suggestion is accepted by user interactions if autocorrect was enabled by default. mehrab@google.com essential-inputs-team@google.com The histogram records charactersitics of original text and suggested text for a rejected autocorrect suggestion on Virtual Keyboard. These measurements highlight the changes applied by autocorrect on the original text such as changing accent, lower casing, capitalizing or mutating characters. It records everytime that an autocorrect suggestion is rejected or undone by user interactions. mehrab@google.com essential-inputs-team@google.com The histogram records charactersitics of original text and suggested text for a rejected autocorrect suggestion on Virtual Keyboard. These measurements highlight the changes applied by autocorrect on the original text such as changing accent, lower casing, capitalizing or mutating characters. It records everytime that an autocorrect suggestion is rejected or undone by user interactions if autocorrect was enabled by default. mehrab@google.com essential-inputs-team@google.com The histogram records charactersitics of original text and suggested text for an accepted autocorrect suggestion on Virtual Keyboard. These measurements highlight the changes applied by autocorrect on the original text such as changing accent, lower casing, capitalizing or mutating characters. It records everytime that an autocorrect suggestion is accepted by user interactions. mehrab@google.com essential-inputs-team@google.com The histogram records charactersitics of original text and suggested text for a rejected autocorrect suggestion on Virtual Keyboard. These measurements highlight the changes applied by autocorrect on the original text such as changing accent, lower casing, capitalizing or mutating characters. It records everytime that an autocorrect suggestion is rejected or undone by user interactions. zacpartridge@google.com essential-inputs-team@google.com The histogram records the different interactions used to reject or revert an autocorrect suggestion. These interactions include selecting undo with or without the keyboard or deleting some or all of the word. curtismcmullan@google.com essential-inputs-team@google.com This metric is recorded whenever a user focuses on a new text input and the IME service is connected and ready to provide autocorrect suggestions. This is only recorded once per input focused. zacpartridge@google.com essential-inputs-team@google.com This histogram is recorded when the learn more button is shown in a unique undo window. The button will only be shown on the first 10 undo windows for each user. curtismcmullan@google.com essential-inputs-team@google.com This histogram is recorded whenever the user changes their preference for the autocorrect level enabled. Metrics are split between VK and PK, and English versus non English languages. curtismcmullan@google.com essential-inputs-team@google.com Records the time taken to generate multi word suggestions candidates. The metric is recorded after a request for candidates has been resolved by the machine learning service. jiwan@google.com essential-inputs-team@google.com The number of times each assistive action is triggered. Recorded when assistive actions are triggered. curtismcmullan@google.com essential-inputs-team@google.com The reason for multi word suggestions not being shown to users. Recorded when the surrounding text could trigger multi word suggestions but the feature was disabled. Only the first applicable reason in IMEAssistiveDisabledReason enum is recorded per occurrence. jiwan@google.com essential-inputs-team@google.com The actions taken by on-device grammar checker, such as underlining a word. Recorded after a grammar checker action is performed. curtismcmullan@google.com essential-inputs-team@google.com Tracks when assistive grammar is performed by a text input client. Recorded when grammar is triggered by users with the feature enabled using a text input client that's being tracked. jiwan@google.com essential-inputs-team@google.com The number of times each assistive action could be triggered according to the surrounding text. This includes cases in InputMethod.Assistive.Coverage, and also includes cases when the feature is turned off or there is insufficient data. Recorded when the surrounding text could trigger assistive actions. curtismcmullan@google.com essential-inputs-team@google.com This records when a candidate generation response is returned from the multi word suggestion engine and the response contains some candidates. This is recorded exactly once per response. curtismcmullan@google.com essential-inputs-team@google.com This histogram records when an empty completion candidate is added to a suggestion generation request to the machine learning service. An empty completion candidate in this context means a candidate with an empty string. This is an invalid state and should never happen. The metric is recorded once per empty candidate found. curtismcmullan@google.com essential-inputs-team@google.com This metric is recorded when a user implicitly accepts a multi word suggestion that is shown to them. Implicit acceptance here means the user has fully typed the suggestion shown to them, without explicitly accepting the suggestion through the ui shown. curtismcmullan@google.com essential-inputs-team@google.com This metric is recorded when a user implicitly rejects a multi word suggestion that is shown to them. Implicit rejection here means the user has typed some text that does not match the suggestion shown to them. curtismcmullan@google.com essential-inputs-team@google.com This records the state of an assistive feature in relation to a particular input field. The feature could be enabled or disabled for a number of reasons and this metric captures that information. The metric is recorded once when a user focuses on a new input field. curtismcmullan@google.com essential-inputs-team@google.com This records the preceding text given in a request to generate candidates from the multi word suggestion engine. It is recorded exactly once per request. curtismcmullan@google.com essential-inputs-team@google.com This records when a request to generate suggestion candidates is made to the multi word suggestion engine. It records the type of suggestion requested. It is recorded exactly once per request. curtismcmullan@google.com essential-inputs-team@google.com This records the length of a multi word suggestion shown to a user in chars. The metric is recorded once when a suggestion visually appears in front of a user. curtismcmullan@google.com essential-inputs-team@google.com This histogram records when the current text context could possibly show a suggestion. This does not necessarily mean a suggestion was shown, only that the current text context fulfills all constraints needed to trigger an attempt to generate and display suggestions. It is recorded exactly once per surrounding text update. curtismcmullan@google.com essential-inputs-team@google.com This histogram records when a new suggestion is found and the system attempts to reconcile it with the text found in the currently focused text input. The histogram records the state of the reconciliation process. This metric is recorded exactly once for every suggestion that goes through this process. jiwan@google.com essential-inputs-team@google.com The number of times each assistive action is accepted. Recorded when assistive actions are accepted by the users. curtismcmullan@google.com essential-inputs-team@google.com The duration from when a multi word suggestion is shown to a user, to the time the user accepts that suggestion. The metric is recorded when the user accepts the suggestion. curtismcmullan@google.com essential-inputs-team@google.com The duration from when a multi word suggestion is shown to a user, to the time the user dimisses that suggestion. The metric is recorded when the user dismisses the suggestion. curtismcmullan@google.com essential-inputs-team@google.com The user's preference for predictive writing suggestions. Recorded when the user is logged in and the AssistiveSuggester is initialised. "Enabled" is logged as the default value if the user didn't explicitly set it. jhtin@google.com essential-inputs-team@google.com The user's preference for diacritics. Recorded when the user is logged in and the AssistiveSuggester is initialised. "Enabled" is logged as the default value if the user didn't explicitly set it. shend@chromium.org essential-inputs-team@google.com The auto-correction level for suggestion engine. shend@chromium.org essential-inputs-team@google.com The breakdown of input method usage by input method category. Recorded when the system changes the current input method. curtismcmullan@chromium.org essential-inputs-team@google.com Number of characters entered in a single user session on ChromeOS. A user session consists of a user typing 10+ characters for 1+ seconds where there is no period of time where the user is inactive for more than 3 seconds for the input type. This gets recorded when we detect user input and it has been more than 3 seconds since the last input by the user and also when a change in the Engine or Text field selected is detected. shend@chromium.org essential-inputs-team@google.com The suggestion index (1-based) of the suggestion list item which user chooses to commit. {IMEMajorNames} dvallet@chromium.org shuchen@chromium.org essential-inputs-team@google.com The suggestion accuracy type which the user chooses to commit. dvallet@chromium.org shuchen@chromium.org essential-inputs-team@google.com Warning: this histogram was expired from M95 to M121; data may be missing. The number of characters committed with composition text. shend@chromium.org essential-inputs-team@google.com [Longform VK Handwriting] Types of actions performed by the user during handwriting, recorded when the user performs a gesture action. curtismcmullan@chromium.org essential-inputs-team@google.com [Longform VK Handwriting] TWarning: this histogram was expired from 2022-03 to 2023-11; data may be missing. The index of the selected suggestion from the handwriting alternative suggestion menu. This metric is recorded when the handwriting text highlighted is multiple words, and the selected suggestion is a single word. curtismcmullan@chromium.org essential-inputs-team@google.com [Longform VK Handwriting] Warning: this histogram was expired from 2022-03 to 2023-11; data may be missing. The index of the selected suggestion from the handwriting alternative suggestion menu. The metric is recorded when the suggestion is selected. curtismcmullan@chromium.org essential-inputs-team@google.com [Longform VK Handwriting] Warning: this histogram was expired from 2022-03 to 2023-11; data may be missing. The index of the selected suggestion from the handwriting alternative suggestion menu. This metric is recorded when the handwriting text highlighted is a single word, and the selected suggestion is mutliple words. shend@chromium.org essential-inputs-team@google.com [Longform VK Handwriting] Number of characters written in a 10 second interval, recorded every 10s while the handwriting keyboard is active. shend@chromium.org essential-inputs-team@google.com [Longform VK Handwriting] Number of characters written in a 5 second interval, recorded every 5s while the handwriting keyboard is active. shend@chromium.org essential-inputs-team@google.com [Longform VK Handwriting] Number of characters written in a 60 second interval, recorded every 60s while the handwriting keyboard is active. curtismcmullan@chromium.org essential-inputs-team@google.com [Non-Longform VK Handwriting] The number of milliseconds taken to load the language model required for the handwriting input method. Recorded every time a new language model is loaded for the handwriting input method. curtismcmullan@chromium.org essential-inputs-team@google.com [Non-Longform VK Handwriting] The state of the requested language pack on initialization of the required handwriting service connection. Recorded once whenever a new handwriting service connection is requested. tranbaoduy@chromium.org shuchen@chromium.org essential-inputs-team@google.com Breakdown of input method usage by input method IDs. Recorded for an input method ID when the system's 'active input method' is switched to the input method with that ID. Note: In this context, 'input method ID' refers to the 'global' input method IDs, i.e. tuple of the extension ID the input method belongs to and the extension-local ID of the input method. dvallet@chromium.org azurewei@chromium.org shuchen@chromium.org essential-inputs-team@google.com Warning: this histogram was expired from 2022-05 to 2023-11; data may be missing. The number of times users click emoji, handwriting or voice button in opt-in IME menu. dvallet@chromium.org timloh@chromium.org essential-inputs-team@google.com The trigger type of input method switches by user. shend@chromium.org essential-inputs-team@google.com Time taken by the engine to handle a key event. hdchuong@google.com zacpartridge@google.com essential-inputs-team@google.com Counts the number of characters inserted by the editor. This metric is recorded at the time an insertion is performed. hdchuong@google.com zacpartridge@google.com essential-inputs-team@google.com Counts the number of characters selected for insertion. This metric is recorded at the time an insertion is performed. hdchuong@google.com zacpartridge@google.com essential-inputs-team@google.com Counts the number of characters in a freeform request (if any) for an insert. This metric is recorded at the time an insertion is performed. hdchuong@google.com essential-inputs-team@google.com Records the index of the response that is selected by the user to be inserted. This metric is recorded at the time an insertion is performed. hdchuong@google.com essential-inputs-team@google.com Records the number of characters found in the longest response returned from the server. This metric is recorded at the time a response with multiple text suggestion candidates is received from the server. hdchuong@google.com essential-inputs-team@google.com Counts the number of responses for each request to the server. This metric is recorded at the time a response is received from the server. zacpartridge@google.com essential-inputs-team@google.com The histogram captures user interactions with the editor, focusing on key actions providing a high level funel of interaction. These actions include the initiation of a new request, content insertion, display of the native UI, dismissal of the editor, a refining request, errors from the backend, receiving a successful responses from the backend or a user toggling the thumbs up and down buttons. curtismcmullan@google.com essential-inputs-team@google.com This metric is segmented by "input language", where input language is derived heuristically from the active input method. The metric counts the number of characters inserted by the editor. This metric is recorded at the time an insertion is performed. curtismcmullan@google.com essential-inputs-team@google.com This metric is segmented by "input language", where input language is derived heuristically from the active input method. The metric counts the number of characters selected for insertion. This metric is recorded at the time an insertion is performed. curtismcmullan@google.com essential-inputs-team@google.com This metric is segmented by "input language", where input language is derived heuristically from the active input method. The metric records the number of characters found in the longest response returned from the server. This metric is recorded at the time a response with multiple text suggestion candidates is received from the server. curtismcmullan@google.com essential-inputs-team@google.com This metric is segmented by "input language", where input language is derived heuristically from the active input method. The metric counts the number of responses for each request to the server. This metric is recorded at the time a response is received from the server. curtismcmullan@google.com essential-inputs-team@google.com The histogram captures user interactions with the editor segmented by "input language". To complete this segmentation we rely on the currently enabled input method as a heuristic. These user interactions are focusing on key actions providing a high level funnel of interaction. These actions include the initiation of a new request, content insertion, display of the native UI, dismissal of the editor, a refining request, errors from the backend, receiving a successful responses from the backend or a user toggling the thumbs up and down buttons. jhtin@chromium.org essential-inputs-team@google.com Logs (On IME activation or settings changed) what the AutomaticallySwitchToHalfWidth setting is set to. jhtin@chromium.org essential-inputs-team@google.com Logs (On IME activation or settings changed) what the DisablePersonalizedSuggestions setting is set to. jhtin@chromium.org essential-inputs-team@google.com Logs (On IME activation or settings changed) what the InputMode setting is set to. jhtin@chromium.org essential-inputs-team@google.com Logs (On IME activation or settings changed) what the KeymapStyle setting is set to. shend@chromium.org essential-inputs-team@google.com Warning: this histogram was expired from 2023-05 to 2024-09; data may be missing. Logs (On IME activation or settings changed) what the NumberOfSuggestions setting is set to. jhtin@chromium.org essential-inputs-team@google.com Logs (On IME activation or settings changed) what the PunctuationStyle setting is set to. jhtin@chromium.org essential-inputs-team@google.com Logs (On IME activation or settings changed) what the SelectionShortcut setting is set to. jhtin@chromium.org essential-inputs-team@google.com Logs (On IME activation or settings changed) what the ShiftKeyModeStyle setting is set to. jhtin@chromium.org essential-inputs-team@google.com Logs (On IME activation or settings changed) what the SpaceInputStyle setting is set to. jhtin@chromium.org essential-inputs-team@google.com Logs (On IME activation or settings changed) what the SymbolStyle setting is set to. jhtin@chromium.org essential-inputs-team@google.com Logs (On IME activation or settings changed) what the UseInputHistory setting is set to. jhtin@chromium.org essential-inputs-team@google.com Logs (On IME activation or settings changed) what the UseSystemDictionary setting is set to. jhtin@chromium.org essential-inputs-team@google.com Action performed on IME startup with respect to Japanese data. This will primarily be used to indicate if a user has migrated their data for JP SYS PK or not. wbjacksonjr@chromium.org embedded-experience@google.com Keyboard shortcut performed by user on physical IME. This signal should only be sent on key down. shend@chromium.org essential-inputs-team@google.com Action performed on the Korean IME. Recorded whenever one of the actions is performed. shend@chromium.org essential-inputs-team@google.com Whether multiple syllables is enabled by the Korean IME. Recorded when the user focuses on a new input field. jhtin@chromium.org essential-inputs-team@google.com The unicode character code for the diacritic and character variant accepted by a user using longpress diacritics on physical keyboard. jhtin@chromium.org essential-inputs-team@google.com Action related to the longpress diacritics window on physical keyboard. These actions are recorded in LongpressDiacriticsSuggester functions: SHOW_WINDOW in TrySuggestOnLongpress, ACCEPT in AcceptSuggestion, and DISMISS in DismissSuggestion. jhtin@chromium.org essential-inputs-team@google.com Whether flexible typing is enabled by the Vietnamese Telex IME. Recorded on IME activation (settings change or changing IME). jhtin@chromium.org essential-inputs-team@google.com Whether modern tone mark is enabled by the Vietnamese Telex IME. Recorded on IME activation (settings change or changing IME). jhtin@chromium.org essential-inputs-team@google.com Whether show underline setting is enabled by the Vietnamese Telex IME. Recorded on IME activation (settings change or changing IME). jhtin@chromium.org essential-inputs-team@google.com Whether UO double horn shortcut is enabled by the Vietnamese Telex IME. Recorded on IME activation (settings change or changing IME). jhtin@chromium.org essential-inputs-team@google.com Whether W for U Horn shortcut is enabled by the Vietnamese Telex IME. Recorded on IME activation (settings change or changing IME). jhtin@chromium.org essential-inputs-team@google.com Whether flexible typing is enabled by the Vietnamese VNI IME. Recorded on IME activation (settings change or changing IME). jhtin@chromium.org essential-inputs-team@google.com Whether modern tone mark is enabled by the Vietnamese VNI IME. Recorded on IME activation (settings change or changing IME). jhtin@chromium.org essential-inputs-team@google.com Whether show underline setting is enabled by the Vietnamese VNI IME. Recorded on IME activation (settings change or changing IME). jhtin@chromium.org essential-inputs-team@google.com Whether UO double horn shortcut is enabled by the Vietnamese VNI IME. Recorded on IME activation (settings change or changing IME). dvallet@chromium.org shuchen@chromium.org essential-inputs-team@google.com Warning: this histogram was expired from 2023-05 to 2023-11; data may be missing. The suggestion accuracy type which the user chooses to commit for physical keyboard autocorrect. shend@chromium.org essential-inputs-team@google.com The average length of user sessions on ChromeOS. This can be combined with characters per session to determine characters per minute. A user session consists of a user typing 10+ characters for 1+ seconds where there is no period of time where the user is inactive for more than 3 seconds. This gets recorded when we detect user input and it has been more than 3 seconds since the last input by the user and also when a change in the Engine or Text field selected is detected. peconn@chromium.org embedded-experience@google.com Recorded when a user on Android is interacting with a text field using a stylus device and the IME recognises that interaction as a gesture (such as selecting or deleting text). alexmitra@chromium.org embedded-experience@google.com Records the result of a gesture which is sent back to Android. alexmitra@chromium.org embedded-experience@google.com The time taken to process and complete a gesture. More specifically, the time between being sent a gesture from Android and getting the gesture result from Blink. This is recorded once per gesture. peconn@chromium.org embedded-experience@google.com When an Android user is interacting with a text field using a stylus and there is an available API on the device, we trigger stylus handwriting. This histogram records which API is available (plain Android or DirectWriting) and when it is triggered. jopalmer@chromium.org essential-inputs-team@google.com Warning: this histogram was expired from 2023-09 to 2023-11; data may be missing. Time between when emoji picker shown and when the emoji is inserted greywang@google.com essential-inputs-team@google.com Time between when emoji is clicked and when the emoji is successfully inserted (fallback coping to clipboard does not count here). The metric is recorded every time when emoji / image insertion is successfully finished in System Emoji Picker. jopalmer@chromium.org essential-inputs-team@google.com Time between when emoji picker is opened and when UI is completely loaded. Used to monitor performance of emoji picker. Recorded once the ChromeOS emoji picker finishes loading. jopalmer@chromium.org essential-inputs-team@google.com Warning: this histogram was expired from 2023-02 to 2023-11; data may be missing. Length of search string in emoji picker when emoji was inserted. jopalmer@chromium.org essential-inputs-team@google.com How emojis were inserted. michellegc@google.com essential-inputs-team@google.com Type of dragging gesture used to adjust the selection or cursor position on ChromeOS. Recorded at the end of the drag. michellegc@google.com essential-inputs-team@google.com Action requested by a ChromeOS user from the touch selection menu. Recorded when the menu button is pressed. shend@chromium.org essential-inputs-team@google.com The number of times the backspace key was pressed on the virtual keyboard, while the virtual keyboard was alive. Recorded when the virtual keyboard is closed. shend@chromium.org essential-inputs-team@google.com The total number of characters committed. Recorded when the virtual keyboard is closed. curtismcmullan@chromium.org essential-inputs-team@google.com Typing speed in each user session on ChromeOS when using the virtual keyboard. A user session consists of a user typing 10+ characters for 1+ seconds where there is no period of time where the user is inactive for more than 3 seconds. This gets recorded when we detect user input and it has been more than 3 seconds since the last input by the user and also when a change in the Engine or Text field selected is detected. curtismcmullan@chromium.org essential-inputs-team@google.com Number of characters entered in a single user session on ChromeOS when using the virtual keyboard. A user session consists of a user typing 10+ characters for 1+ seconds where there is no period of time where the user is inactive for more than 3 seconds. This gets recorded when we detect user input and it has been more than 3 seconds since the last input by the user and also when a change in the Engine or Text field selected is detected. shend@chromium.org essential-inputs-team@google.com Chrome OS histogram that counts the number of times each virtual keyboard display mode is used. Recorded when the virtual keyboard is opened or a user changes the keyboard mode from UI in the virtual keyboard. shend@chromium.org essential-inputs-team@google.com How long the virtual keyboard was visible. jopalmer@chromium.org essential-inputs-team@google.com Time between when emoji shown in VK and when the emoji is inserted. shend@chromium.org essential-inputs-team@google.com How emojis were inserted. shend@chromium.org essential-inputs-team@google.com Errors from the virtual keyboard extension shend@chromium.org essential-inputs-team@google.com Whether an input field was focused by a stylus or not. Recorded when an input field is focused. alexmitra@chromium.org peconn@chromium.org Logs true if an unsuccessful attempt was made to instantiate the DirectWritingServiceCallback. Logs false when DirectWriting is successfully enabled in Chrome. This is to gauge how often crbug.com/1375266 is being encountered. curtismcmullan@chromium.org essential-inputs-team@google.com [Longform VK Handwriting] Warning: this histogram was expired from 2021-12 to 2023-11; data may be missing. What type of container was the virtual keyboard in when text was committed from the handwriting input method. curtismcmullan@chromium.org essential-inputs-team@google.com [Longform VK Handwriting] Warning: this histogram was expired from 2021-12 to 2023-11; data may be missing. How wide was the keyboard container when text was committed from the handwriting input method. jopalmer@chromium.org essential-inputs-team@google.com Time to show the on-screen keyboard in milliseconds. Similar to InputMethod.VirtualKeyboard.KeyboardShown but with a larger maximum to capture more of the distribution. shend@chromium.org essential-inputs-team@google.com The on-screen keyboard initialization latency in milliseconds. {IMEVKLatency}. Warning: this histogram was expired from M95 to 2024-02; data may be missing. shend@chromium.org essential-inputs-team@google.com The layout of the on-screen keyboard. Logged when the specific layout is shown. jiwan@chromium.org essential-inputs-team@google.com The user actions taken in multipaste virtual keyboard, such as pasting a clipboard item. Recorded after a user action is performed in multipaste virtual keyboard. jopalmer@chromium.org essential-inputs-team@google.com Type of action performed by the user in Paprika. Recorded when the action is performed. Only for Chrome OS jopalmer@chromium.org essential-inputs-team@google.com Did the user start handwriting in Paprika after dismissing the Edu dialog? Recorded when Paprika is closed. shend@chromium.org essential-inputs-team@google.com The layout of the virtual keyboard that is shown when the user focuses on an input field with a stylus. Recorded when the layout is shown after a focus. curtismcmullan@chromium.org essential-inputs-team@google.com The width of the virtual keyboard window, in pixels, when the floating keyboard is initialized. This is recorded only once on startup, when the virtual keyboard is initialized in floating mode. curtismcmullan@chromium.org essential-inputs-team@google.com Warning: this histogram was expired from 2021-09 to 2023-11; data may be missing. The width of the virtual keyboard window, in pixels, after a user has completed resizing the virtual keyboard. This is recorded when the user lifts their finger at the end of a drag that initiates a resize. shend@chromium.org essential-inputs-team@google.com The average length of user sessions on ChromeOS when using the virtual keyboard. This can be combined with characters per session to determine NSM. A user session consists of a user typing 10+ characters for 1+ seconds where there is no period of time where the user is inactive for more than 3 seconds. This gets recorded when we detect user input and it has been more than 3 seconds since the last input by the user and also when a change in the Engine or Text field selected is detected. shend@chromium.org essential-inputs-team@google.com Warning: this histogram was expired from 2023-08 to 2023-11; data may be missing. The count of user actions to switch keyboard mode (floating, docked). Recorded when the user clicks in the docked/floating keyboard menu option. flackr@chromium.org johna@microsoft.com gerchiko@microsoft.com Records the HRESULT returned by RequestHandwritingForPointer. This is only applicable to users on Windows. flackr@chromium.org johna@microsoft.com gerchiko@microsoft.com Records whether the TSF focus was successfully set. This is only applicable to users on Windows. joenotcharles@google.com input-dev@chromium.org Recorded per call from a browser process thread to query GetCharacterIndexAtPoint on a renderer process. If True the call timed out before receiving a response. Only recorded on macOS. joenotcharles@google.com input-dev@chromium.org Recorded per call from a browser process thread to query GetCharacterIndexAtPoint on a renderer process, with the duration of the query. The call is effectively synchronous, blocking all other tasks from running on the browser thread for that duration. The duration is tracked with LiveTicks so doesn't include time when the system is suspended. Only recorded on macOS. joenotcharles@google.com input-dev@chromium.org Recorded per call from a browser process thread to query GetFirstRectForRange on a renderer process. If True the call timed out before receiving a response. Only recorded on macOS. joenotcharles@google.com input-dev@chromium.org Recorded per call from a browser process thread to query GetFirstRectForRange on a renderer process, with the duration of the query. The call is effectively synchronous, blocking all other tasks from running on the browser thread for that duration. The duration is tracked with LiveTicks so doesn't include time when the system is suspended. Only recorded on macOS. joenotcharles@google.com input-dev@chromium.org Records the result of attempting to retrieve the first rect for a character range from the cache on Mac. This is logged every time RenderWidgetHostViewMac::GetCachedFirstRectForCharacterRange is called. Only recorded on macOS. joenotcharles@google.com input-dev@chromium.org Time took to acquire TextInputClient mutex lock on the browser process thread, recorded per attempt. The histogram is useful to understand how much of the TextInputClient.FirstRect2 and TextInputClient.CharacterIndex2 latency are due to acquring browser-side lock. For parity with those histograms, the duration is tracked with LiveTicks so doesn't include time when the system is suspended. Only recorded on macOS. robliao@chromium.org wangsongjin@microsoft.com gerchiko@microsoft.com input-dev@chromium.org Records the device posture mode (tablet or desktop) usage patterns across different device. This metric is only logged once per browser session when initializing the singleton `TouchUiController` at startup. This metric is only available on Windows. The metric is not logged on devices that have explicitly disabled convertibility. Startup: Records the device posture mode detected at browser startup. Switch: Records the device posture mode is switched to another. jhtin@chromium.org essential-inputs-team@google.com Actions used by the Vietnamese engine to compose text. Since this is logged from a sandboxed service so it has to be in the untrusted namespace. bokan@chromium.org input-dev@chromium.org The viewport meta tag type seen on each page load. Only recorded on Android. Recorded when the page finishes loading.