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  5. tabs.Tab

内容表

tabs.Tab

The type tabs.Tab contains information about a tab. This provides access to information about what content is in the tab, how large the content is, what special states or restrictions are in effect, and so forth.

类型

Values of this type are objects. They contain the following properties:

active

boolean . Whether the tab is active in its window. This may be true even if the tab's window is not currently focused.

The active tab is usually the selected one. However, on Firefox for Android, extension popups open in a new tab. When this popup tab is selected, the active tab will instead be the one in which the popup opened.

attention 可选

boolean . Indicates whether the tab is drawing attention. For example, when the tab displays a modal dialog, attention 将是 true .

audible 可选

boolean . Indicates whether the tab is producing sound. However, the user will not hear the sound if the tab is muted (see the mutedInfo 特性)。

autoDiscardable 可选

boolean . Whether the tab can be discarded automatically by the browser when resources are low.

cookieStoreId 可选

string . The cookie store of the tab. If different tabs can have different cookie stores (for example, to support contextual identity ), you can pass this as the storeId option into various methods of the Cookie API, to set and get cookies associated with this tab's cookie store. Only present if the extension has the "cookies" permission .

discarded 可选

boolean . Whether the tab is discarded. A discarded tab is one whose content has been unloaded from memory, but is still visible in the tab strip. Its content gets reloaded the next time it's activated.

favIconUrl 可选

string . The URL of the tab's favicon. Only present if the extension has the "tabs" permission or host permissions . It may also be an empty string if the tab is loading.

height 可选

integer . The height of the tab in pixels.

hidden

boolean . Whether the tab is hidden.

highlighted

boolean . Whether the tab is highlighted, i.e. part of the current tab selection. An active tab is always highlighted, but some browsers may allow additional tabs to be highlighted, for example by clicking them while holding Ctrl , Shift or ⌘ Command 键。

Firefox for Android doesn't support highlighting multiple tabs, and Firefox desktop requires the browser.tabs.multiselect preference (enabled by default).

id 可选

integer . The tab's ID. Tab IDs are unique within a browser session. The tab ID may also be set to tabs.TAB_ID_NONE for browser windows that don't host content tabs (for example, devtools windows).

incognito

boolean . Whether the tab is in a private browsing window.

index

integer . The zero-based index of the tab within its window.

isArticle

boolean . True if the tab can be rendered in Reader Mode , false otherwise.

isInReaderMode

boolean . True if the tab is currently being rendered in Reader Mode , false otherwise.

lastAccessed

double . Time at which the tab was last accessed, in milliseconds since the epoch .

mutedInfo 可选

tabs.MutedInfo . The current muted state for the tab and the reason for the last state change.

openerTabId 可选

integer . The ID of the tab that opened this tab, if any. This property is only present if the opener tab still exists and is in the same window.

pinned

boolean . Whether the tab is pinned.

selected

boolean . Whether the tab is selected. This property has been replaced by active and highlighted .

sessionId 可选

string . The session ID used to uniquely identify a Tab obtained from the sessions API。

status 可选

string . Either loading or complete .

successorTabId 可选

integer The ID of the tab's successor.

title 可选

string . The title of the tab. Only present if the extension has the "tabs" permission or host permissions that matches the tab's URL.

url 可选

string . The URL of the document that the tab is displaying. Only present if the extension has the "tabs" permission or a matching host permissions .

width 可选

integer . The width of the tab in pixels.

windowId

integer . The ID of the window that hosts this tab.

浏览器兼容性

BCD tables only load in the browser

Example extensions

注意： This API is based on Chromium's chrome.tabs API. This documentation is derived from tabs.json in the Chromium code.

Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.

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最后修改： , 由 MDN 贡献者

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      1. 方法
        1. captureTab()
        2. captureVisibleTab()
        3. connect()
        4. create()
        5. detectLanguage()
        6. discard()
        7. duplicate()
        8. executeScript()
        9. get()
        10. getAllInWindow()
        11. getCurrent()
        12. getSelected()
        13. getZoom()
        14. getZoomSettings()
        15. goBack()
        16. goForward()
        17. hide()
        18. highlight()
        19. insertCSS()
        20. move()
        21. moveInSuccession()
        22. print()
        23. printPreview()
        24. query()
        25. reload()
        26. remove()
        27. removeCSS()
        28. saveAsPDF()
        29. sendMessage()
        30. sendRequest()
        31. setZoom()
        32. setZoomSettings()
        33. show()
        34. toggleReaderMode()
        35. update()
        36. warmup()
      2. 特性
        1. TAB_ID_NONE
      3. 类型
        1. MutedInfo
        2. MutedInfoReason
        3. PageSettings
        4. Tab
        5. TabStatus
        6. WindowType
        7. ZoomSettings
        8. ZoomSettingsMode
        9. ZoomSettingsScope
      4. 事件
        1. onActivated
        2. onActiveChanged
        3. onAttached
        4. onCreated
        5. onDetached
        6. onHighlightChanged
        7. onHighlighted
        8. onMoved
        9. onRemoved
        10. onReplaced
        11. onSelectionChanged
        12. onUpdated
        13. onZoomChange
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    8. content_scripts
    9. content_security_policy
    10. default_locale
    11. description
    12. developer
    13. devtools_page
    14. dictionaries
    15. externally_connectable
    16. homepage_url
    17. icons
    18. incognito
    19. manifest_version
    20. name
    21. offline_enabled
    22. omnibox
    23. optional_permissions
    24. options_page
    25. options_ui
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    27. permissions
    28. protocol_handlers
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