public:

///

/// True if this object is currently valid. This will return false after

/// CefLifeSpanHandler::OnBeforeClose is called.

///

/*--cef()--*/

virtual bool IsValid() = 0;

///

/// Returns the browser host object. This method can only be called in the

/// browser process.

///

/*--cef()--*/

virtual CefRefPtr<CefBrowserHost> GetHost() = 0;

///

/// Returns true if the browser can navigate backwards.

///

/*--cef()--*/

virtual bool CanGoBack() = 0;

///

/// Navigate backwards.

///

/*--cef()--*/

virtual void GoBack() = 0;

///

/// Returns true if the browser can navigate forwards.

///

/*--cef()--*/

virtual bool CanGoForward() = 0;

///

/// Navigate forwards.

///

/*--cef()--*/

virtual void GoForward() = 0;

///

/// Returns true if the browser is currently loading.

///

/*--cef()--*/

virtual bool IsLoading() = 0;

///

/// Reload the current page.

///

/*--cef()--*/

virtual void Reload() = 0;

///

/// Reload the current page ignoring any cached data.

///

/*--cef()--*/

virtual void ReloadIgnoreCache() = 0;

///

/// Stop loading the page.

///

/*--cef()--*/

virtual void StopLoad() = 0;

///

/// Returns the globally unique identifier for this browser. This value is

/// also used as the tabId for extension APIs.

///

/*--cef()--*/

virtual int GetIdentifier() = 0;

///

/// Returns true if this object is pointing to the same handle as |that|

/// object.

///

/*--cef()--*/

virtual bool IsSame(CefRefPtr<CefBrowser> that) = 0;

///

/// Returns true if the browser is a popup.

///

/*--cef()--*/

virtual bool IsPopup() = 0;

///

/// Returns true if a document has been loaded in the browser.

///

/*--cef()--*/

virtual bool HasDocument() = 0;

///

/// Returns the main (top-level) frame for the browser. In the browser process

/// this will return a valid object until after

/// CefLifeSpanHandler::OnBeforeClose is called. In the renderer process this

/// will return NULL if the main frame is hosted in a different renderer

/// process (e.g. for cross-origin sub-frames). The main frame object will

/// change during cross-origin navigation or re-navigation after renderer

/// process termination (due to crashes, etc).

///

/*--cef()--*/

virtual CefRefPtr<CefFrame> GetMainFrame() = 0;

///

/// Returns the focused frame for the browser.

///

/*--cef()--*/

virtual CefRefPtr<CefFrame> GetFocusedFrame() = 0;

///

/// Returns the frame with the specified identifier, or NULL if not found.

///

/*--cef()--*/

virtual CefRefPtr<CefFrame> GetFrameByIdentifier(

const CefString& identifier) = 0;

///

/// Returns the frame with the specified name, or NULL if not found.

///

/*--cef(optional_param=name)--*/

virtual CefRefPtr<CefFrame> GetFrameByName(const CefString& name) = 0;

///

/// Returns the number of frames that currently exist.

///

/*--cef()--*/

virtual size_t GetFrameCount() = 0;

///

/// Returns the identifiers of all existing frames.

///

/*--cef(count_func=identifiers:GetFrameCount)--*/

virtual void GetFrameIdentifiers(std::vector<CefString>& identifiers) = 0;

///

/// Returns the names of all existing frames.

///

/*--cef()--*/

virtual void GetFrameNames(std::vector<CefString>& names) = 0;

public:

///

/// Called asynchronously after the file dialog is dismissed.

/// |file_paths| will be a single value or a list of values depending on the

/// dialog mode. If the selection was cancelled |file_paths| will be empty.

///

/*--cef(optional_param=file_paths)--*/

virtual void OnFileDialogDismissed(

const std::vector<CefString>& file_paths) = 0;

public:

///

/// Method that will be executed. Do not keep a reference to |entry| outside

/// of this callback. Return true to continue visiting entries or false to

/// stop. |current| is true if this entry is the currently loaded navigation

/// entry. |index| is the 0-based index of this entry and |total| is the total

/// number of entries.

///

/*--cef()--*/

virtual bool Visit(CefRefPtr<CefNavigationEntry> entry,

bool current,

int index,

int total) = 0;

public:

///

/// Method that will be executed when the PDF printing has completed. |path|

/// is the output path. |ok| will be true if the printing completed

/// successfully or false otherwise.

///

/*--cef()--*/

virtual void OnPdfPrintFinished(const CefString& path, bool ok) = 0;

public:

///

/// Method that will be executed when the image download has completed.

/// |image_url| is the URL that was downloaded and |http_status_code| is the

/// resulting HTTP status code. |image| is the resulting image, possibly at

/// multiple scale factors, or empty if the download failed.

///

/*--cef(optional_param=image)--*/

virtual void OnDownloadImageFinished(const CefString& image_url,

int http_status_code,

CefRefPtr<CefImage> image) = 0;

public:

typedef cef_drag_operations_mask_t DragOperationsMask;

typedef cef_file_dialog_mode_t FileDialogMode;

typedef cef_mouse_button_type_t MouseButtonType;

typedef cef_paint_element_type_t PaintElementType;

///

/// Create a new browser using the window parameters specified by

/// |windowInfo|. All values will be copied internally and the actual window

/// (if any) will be created on the UI thread. If |request_context| is empty

/// the global request context will be used. This method can be called on any

/// browser process thread and will not block. The optional |extra_info|

/// parameter provides an opportunity to specify extra information specific to

/// the created browser that will be passed to

/// CefRenderProcessHandler::OnBrowserCreated() in the render process.

///

/*--cef(optional_param=client,optional_param=url,

static bool CreateBrowser(const CefWindowInfo& windowInfo,

CefRefPtr<CefClient> client,

const CefString& url,

const CefBrowserSettings& settings,

CefRefPtr<CefDictionaryValue> extra_info,

CefRefPtr<CefRequestContext> request_context);

///

/// Create a new browser using the window parameters specified by

/// |windowInfo|. If |request_context| is empty the global request context

/// will be used. This method can only be called on the browser process UI

/// thread. The optional |extra_info| parameter provides an opportunity to

/// specify extra information specific to the created browser that will be

/// passed to CefRenderProcessHandler::OnBrowserCreated() in the render

/// process.

///

/*--cef(optional_param=client,optional_param=url,

static CefRefPtr<CefBrowser> CreateBrowserSync(

const CefWindowInfo& windowInfo,

CefRefPtr<CefClient> client,

const CefString& url,

const CefBrowserSettings& settings,

CefRefPtr<CefDictionaryValue> extra_info,

CefRefPtr<CefRequestContext> request_context);

///

/// Returns the hosted browser object.

///

/*--cef()--*/

virtual CefRefPtr<CefBrowser> GetBrowser() = 0;

///

/// Request that the browser close. The JavaScript 'onbeforeunload' event will

/// be fired. If |force_close| is false the event handler, if any, will be

/// allowed to prompt the user and the user can optionally cancel the close.

/// If |force_close| is true the prompt will not be displayed and the close

/// will proceed. Results in a call to CefLifeSpanHandler::DoClose() if the

/// event handler allows the close or if |force_close| is true. See

/// CefLifeSpanHandler::DoClose() documentation for additional usage

/// information.

///

/*--cef()--*/

virtual void CloseBrowser(bool force_close) = 0;

///

/// Helper for closing a browser. Call this method from the top-level window

/// close handler (if any). Internally this calls CloseBrowser(false) if the

/// close has not yet been initiated. This method returns false while the

/// close is pending and true after the close has completed. See

/// CloseBrowser() and CefLifeSpanHandler::DoClose() documentation for

/// additional usage information. This method must be called on the browser

/// process UI thread.

///

/*--cef()--*/

virtual bool TryCloseBrowser() = 0;

///

/// Set whether the browser is focused.

///

/*--cef()--*/

virtual void SetFocus(bool focus) = 0;

///

/// Retrieve the window handle (if any) for this browser. If this browser is

/// wrapped in a CefBrowserView this method should be called on the browser

/// process UI thread and it will return the handle for the top-level native

/// window.

///

/*--cef()--*/

virtual CefWindowHandle GetWindowHandle() = 0;

///

/// Retrieve the window handle (if any) of the browser that opened this

/// browser. Will return NULL for non-popup browsers or if this browser is

/// wrapped in a CefBrowserView. This method can be used in combination with

/// custom handling of modal windows.

///

/*--cef()--*/

virtual CefWindowHandle GetOpenerWindowHandle() = 0;

///

/// Returns true if this browser is wrapped in a CefBrowserView.

///

/*--cef()--*/

virtual bool HasView() = 0;

///

/// Returns the client for this browser.

///

/*--cef()--*/

virtual CefRefPtr<CefClient> GetClient() = 0;

///

/// Returns the request context for this browser.

///

/*--cef()--*/

virtual CefRefPtr<CefRequestContext> GetRequestContext() = 0;

///

/// Returns true if this browser can execute the specified zoom command. This

/// method can only be called on the UI thread.

///

/*--cef()--*/

virtual bool CanZoom(cef_zoom_command_t command) = 0;

///

/// Execute a zoom command in this browser. If called on the UI thread the

/// change will be applied immediately. Otherwise, the change will be applied

/// asynchronously on the UI thread.

///

/*--cef()--*/

virtual void Zoom(cef_zoom_command_t command) = 0;

///

/// Get the default zoom level. This value will be 0.0 by default but can be

/// configured with the Chrome runtime. This method can only be called on the

/// UI thread.

///

/*--cef()--*/

virtual double GetDefaultZoomLevel() = 0;

///

/// Get the current zoom level. This method can only be called on the UI

/// thread.

///

/*--cef()--*/

virtual double GetZoomLevel() = 0;

///

/// Change the zoom level to the specified value. Specify 0.0 to reset the

/// zoom level to the default. If called on the UI thread the change will be

/// applied immediately. Otherwise, the change will be applied asynchronously

/// on the UI thread.

///

/*--cef()--*/

virtual void SetZoomLevel(double zoomLevel) = 0;

///

/// Call to run a file chooser dialog. Only a single file chooser dialog may

/// be pending at any given time. |mode| represents the type of dialog to

/// display. |title| to the title to be used for the dialog and may be empty

/// to show the default title ("Open" or "Save" depending on the mode).

/// |default_file_path| is the path with optional directory and/or file name

/// component that will be initially selected in the dialog. |accept_filters|

/// are used to restrict the selectable file types and may any combination of

/// (a) valid lower-cased MIME types (e.g. "text/*" or "image/*"), (b)

/// individual file extensions (e.g.

/// ".txt" or ".png"), or (c) combined description and file extension

/// delimited using "|" and ";" (e.g. "Image Types|.png;.gif;.jpg").

/// |callback| will be executed after the dialog is dismissed or immediately

/// if another dialog is already pending. The dialog will be initiated

/// asynchronously on the UI thread.

///

/*--cef(optional_param=title,optional_param=default_file_path,

virtual void RunFileDialog(FileDialogMode mode,

const CefString& title,

const CefString& default_file_path,

const std::vector<CefString>& accept_filters,

CefRefPtr<CefRunFileDialogCallback> callback) = 0;

///

/// Download the file at |url| using CefDownloadHandler.

///

/*--cef()--*/

virtual void StartDownload(const CefString& url) = 0;

///

/// Download |image_url| and execute |callback| on completion with the images

/// received from the renderer. If |is_favicon| is true then cookies are not

/// sent and not accepted during download. Images with density independent

/// pixel (DIP) sizes larger than |max_image_size| are filtered out from the

/// image results. Versions of the image at different scale factors may be

/// downloaded up to the maximum scale factor supported by the system. If

/// there are no image results <= |max_image_size| then the smallest image is

/// resized to |max_image_size| and is the only result. A |max_image_size| of

/// 0 means unlimited. If |bypass_cache| is true then |image_url| is requested

/// from the server even if it is present in the browser cache.

///

/*--cef()--*/

virtual void DownloadImage(const CefString& image_url,

bool is_favicon,

uint32_t max_image_size,

bool bypass_cache,

CefRefPtr<CefDownloadImageCallback> callback) = 0;

///

/// Print the current browser contents.

///

/*--cef()--*/

virtual void Print() = 0;

///

/// Print the current browser contents to the PDF file specified by |path| and

/// execute |callback| on completion. The caller is responsible for deleting

/// |path| when done. For PDF printing to work on Linux you must implement the

/// CefPrintHandler::GetPdfPaperSize method.

///

/*--cef(optional_param=callback)--*/

virtual void PrintToPDF(const CefString& path,

const CefPdfPrintSettings& settings,

CefRefPtr<CefPdfPrintCallback> callback) = 0;

///

/// Search for |searchText|. |forward| indicates whether to search forward or

/// backward within the page. |matchCase| indicates whether the search should

/// be case-sensitive. |findNext| indicates whether this is the first request

/// or a follow-up. The search will be restarted if |searchText| or

/// |matchCase| change. The search will be stopped if |searchText| is empty.

/// The CefFindHandler instance, if any, returned via

/// CefClient::GetFindHandler will be called to report find results.

///

/*--cef()--*/

virtual void Find(const CefString& searchText,

bool forward,

bool matchCase,

bool findNext) = 0;

///

/// Cancel all searches that are currently going on.

///

/*--cef()--*/

virtual void StopFinding(bool clearSelection) = 0;

///

/// Open developer tools (DevTools) in its own browser. The DevTools browser

/// will remain associated with this browser. If the DevTools browser is

/// already open then it will be focused, in which case the |windowInfo|,

/// |client| and |settings| parameters will be ignored. If

/// |inspect_element_at| is non-empty then the element at the specified (x,y)

/// location will be inspected. The |windowInfo| parameter will be ignored if

/// this browser is wrapped in a CefBrowserView.

///

/*--cef(optional_param=windowInfo,optional_param=client,

virtual void ShowDevTools(const CefWindowInfo& windowInfo,

CefRefPtr<CefClient> client,

const CefBrowserSettings& settings,

const CefPoint& inspect_element_at) = 0;

///

/// Explicitly close the associated DevTools browser, if any.

///

/*--cef()--*/

virtual void CloseDevTools() = 0;

///

/// Returns true if this browser currently has an associated DevTools browser.

/// Must be called on the browser process UI thread.

///

/*--cef()--*/

virtual bool HasDevTools() = 0;

///

/// Send a method call message over the DevTools protocol. |message| must be a

/// UTF8-encoded JSON dictionary that contains "id" (int), "method" (string)

/// and "params" (dictionary, optional) values. See the DevTools protocol

/// documentation at https://chromedevtools.github.io/devtools-protocol/ for

/// details of supported methods and the expected "params" dictionary

/// contents. |message| will be copied if necessary. This method will return

/// true if called on the UI thread and the message was successfully submitted

/// for validation, otherwise false. Validation will be applied asynchronously

/// and any messages that fail due to formatting errors or missing parameters

/// may be discarded without notification. Prefer ExecuteDevToolsMethod if a

/// more structured approach to message formatting is desired.

///

/// Every valid method call will result in an asynchronous method result or

/// error message that references the sent message "id". Event messages are

/// received while notifications are enabled (for example, between method

/// calls for "Page.enable" and "Page.disable"). All received messages will be

/// delivered to the observer(s) registered with AddDevToolsMessageObserver.

/// See CefDevToolsMessageObserver::OnDevToolsMessage documentation for

/// details of received message contents.

///

/// Usage of the SendDevToolsMessage, ExecuteDevToolsMethod and

/// AddDevToolsMessageObserver methods does not require an active DevTools

/// front-end or remote-debugging session. Other active DevTools sessions will

/// continue to function independently. However, any modification of global

/// browser state by one session may not be reflected in the UI of other

/// sessions.

///

/// Communication with the DevTools front-end (when displayed) can be logged

/// for development purposes by passing the

/// `--devtools-protocol-log-file=<path>` command-line flag.

///

/*--cef()--*/

virtual bool SendDevToolsMessage(const void* message,

size_t message_size) = 0;

///

/// Execute a method call over the DevTools protocol. This is a more

/// structured version of SendDevToolsMessage. |message_id| is an incremental

/// number that uniquely identifies the message (pass 0 to have the next

/// number assigned automatically based on previous values). |method| is the

/// method name. |params| are the method parameters, which may be empty. See

/// the DevTools protocol documentation (linked above) for details of

/// supported methods and the expected |params| dictionary contents. This

/// method will return the assigned message ID if called on the UI thread and

/// the message was successfully submitted for validation, otherwise 0. See

/// the SendDevToolsMessage documentation for additional usage information.

///

/*--cef(optional_param=params)--*/

virtual int ExecuteDevToolsMethod(int message_id,

const CefString& method,

CefRefPtr<CefDictionaryValue> params) = 0;

///

/// Add an observer for DevTools protocol messages (method results and

/// events). The observer will remain registered until the returned

/// Registration object is destroyed. See the SendDevToolsMessage

/// documentation for additional usage information.

///

/*--cef()--*/

virtual CefRefPtr<CefRegistration> AddDevToolsMessageObserver(

CefRefPtr<CefDevToolsMessageObserver> observer) = 0;

///

/// Retrieve a snapshot of current navigation entries as values sent to the

/// specified visitor. If |current_only| is true only the current navigation

/// entry will be sent, otherwise all navigation entries will be sent.

///

/*--cef()--*/

virtual void GetNavigationEntries(

CefRefPtr<CefNavigationEntryVisitor> visitor,

bool current_only) = 0;

///

/// If a misspelled word is currently selected in an editable node calling

/// this method will replace it with the specified |word|.

///

/*--cef()--*/

virtual void ReplaceMisspelling(const CefString& word) = 0;

///

/// Add the specified |word| to the spelling dictionary.

///

/*--cef()--*/

virtual void AddWordToDictionary(const CefString& word) = 0;

///

/// Returns true if window rendering is disabled.

///

/*--cef()--*/

virtual bool IsWindowRenderingDisabled() = 0;

///

/// Notify the browser that the widget has been resized. The browser will

/// first call CefRenderHandler::GetViewRect to get the new size and then call

/// CefRenderHandler::OnPaint asynchronously with the updated regions. This

/// method is only used when window rendering is disabled.

///

/*--cef()--*/

virtual void WasResized() = 0;

///

/// Notify the browser that it has been hidden or shown. Layouting and

/// CefRenderHandler::OnPaint notification will stop when the browser is

/// hidden. This method is only used when window rendering is disabled.

///

/*--cef()--*/

virtual void WasHidden(bool hidden) = 0;

///

/// Send a notification to the browser that the screen info has changed. The

/// browser will then call CefRenderHandler::GetScreenInfo to update the

/// screen information with the new values. This simulates moving the webview

/// window from one display to another, or changing the properties of the

/// current display. This method is only used when window rendering is

/// disabled.

///

/*--cef()--*/

virtual void NotifyScreenInfoChanged() = 0;

///

/// Invalidate the view. The browser will call CefRenderHandler::OnPaint

/// asynchronously. This method is only used when window rendering is

/// disabled.

///

/*--cef()--*/

virtual void Invalidate(PaintElementType type) = 0;

///

/// Issue a BeginFrame request to Chromium. Only valid when

/// CefWindowInfo::external_begin_frame_enabled is set to true.

///

/*--cef()--*/

virtual void SendExternalBeginFrame() = 0;

///

/// Send a key event to the browser.

///

/*--cef()--*/

virtual void SendKeyEvent(const CefKeyEvent& event) = 0;

///

/// Send a mouse click event to the browser. The |x| and |y| coordinates are

/// relative to the upper-left corner of the view.

///

/*--cef()--*/

virtual void SendMouseClickEvent(const CefMouseEvent& event,

MouseButtonType type,

bool mouseUp,

int clickCount) = 0;

///

/// Send a mouse move event to the browser. The |x| and |y| coordinates are

/// relative to the upper-left corner of the view.

///

/*--cef()--*/

virtual void SendMouseMoveEvent(const CefMouseEvent& event,

bool mouseLeave) = 0;

///

/// Send a mouse wheel event to the browser. The |x| and |y| coordinates are

/// relative to the upper-left corner of the view. The |deltaX| and |deltaY|

/// values represent the movement delta in the X and Y directions

/// respectively. In order to scroll inside select popups with window

/// rendering disabled CefRenderHandler::GetScreenPoint should be implemented

/// properly.

///

/*--cef()--*/

virtual void SendMouseWheelEvent(const CefMouseEvent& event,

int deltaX,

int deltaY) = 0;

///

/// Send a touch event to the browser for a windowless browser.

///

/*--cef()--*/

virtual void SendTouchEvent(const CefTouchEvent& event) = 0;

///

/// Send a capture lost event to the browser.

///

/*--cef()--*/

virtual void SendCaptureLostEvent() = 0;

///

/// Notify the browser that the window hosting it is about to be moved or

/// resized. This method is only used on Windows and Linux.

///

/*--cef()--*/

virtual void NotifyMoveOrResizeStarted() = 0;

///

/// Returns the maximum rate in frames per second (fps) that

/// CefRenderHandler::OnPaint will be called for a windowless browser. The

/// actual fps may be lower if the browser cannot generate frames at the

/// requested rate. The minimum value is 1 and the maximum value is 60

/// (default 30). This method can only be called on the UI thread.

///

/*--cef()--*/

virtual int GetWindowlessFrameRate() = 0;

///

/// Set the maximum rate in frames per second (fps) that CefRenderHandler::

/// OnPaint will be called for a windowless browser. The actual fps may be

/// lower if the browser cannot generate frames at the requested rate. The

/// minimum value is 1 and the maximum value is 60 (default 30). Can also be

/// set at browser creation via CefBrowserSettings.windowless_frame_rate.

///

/*--cef()--*/

virtual void SetWindowlessFrameRate(int frame_rate) = 0;

///

/// Begins a new composition or updates the existing composition. Blink has a

/// special node (a composition node) that allows the input method to change

/// text without affecting other DOM nodes. |text| is the optional text that

/// will be inserted into the composition node. |underlines| is an optional

/// set of ranges that will be underlined in the resulting text.

/// |replacement_range| is an optional range of the existing text that will be

/// replaced. |selection_range| is an optional range of the resulting text

/// that will be selected after insertion or replacement. The

/// |replacement_range| value is only used on OS X.

///

/// This method may be called multiple times as the composition changes. When

/// the client is done making changes the composition should either be

/// canceled or completed. To cancel the composition call

/// ImeCancelComposition. To complete the composition call either

/// ImeCommitText or ImeFinishComposingText. Completion is usually signaled

/// when:

///

/// 1. The client receives a WM_IME_COMPOSITION message with a GCS_RESULTSTR

/// flag (on Windows), or;

/// 2. The client receives a "commit" signal of GtkIMContext (on Linux), or;

/// 3. insertText of NSTextInput is called (on Mac).

///

/// This method is only used when window rendering is disabled.

///

/*--cef(optional_param=text, optional_param=underlines)--*/

virtual void ImeSetComposition(

const CefString& text,

const std::vector<CefCompositionUnderline>& underlines,

const CefRange& replacement_range,

const CefRange& selection_range) = 0;

///

/// Completes the existing composition by optionally inserting the specified

/// |text| into the composition node. |replacement_range| is an optional range

/// of the existing text that will be replaced. |relative_cursor_pos| is where

/// the cursor will be positioned relative to the current cursor position. See

/// comments on ImeSetComposition for usage. The |replacement_range| and

/// |relative_cursor_pos| values are only used on OS X.

/// This method is only used when window rendering is disabled.

///

/*--cef(optional_param=text)--*/

virtual void ImeCommitText(const CefString& text,

const CefRange& replacement_range,

int relative_cursor_pos) = 0;

///

/// Completes the existing composition by applying the current composition

/// node contents. If |keep_selection| is false the current selection, if any,

/// will be discarded. See comments on ImeSetComposition for usage. This

/// method is only used when window rendering is disabled.

///

/*--cef()--*/

virtual void ImeFinishComposingText(bool keep_selection) = 0;

///

/// Cancels the existing composition and discards the composition node

/// contents without applying them. See comments on ImeSetComposition for

/// usage.

/// This method is only used when window rendering is disabled.

///

/*--cef()--*/

virtual void ImeCancelComposition() = 0;

///

/// Call this method when the user drags the mouse into the web view (before

/// calling DragTargetDragOver/DragTargetLeave/DragTargetDrop).

/// |drag_data| should not contain file contents as this type of data is not

/// allowed to be dragged into the web view. File contents can be removed

/// using CefDragData::ResetFileContents (for example, if |drag_data| comes

/// from CefRenderHandler::StartDragging). This method is only used when

/// window rendering is disabled.

///

/*--cef()--*/

virtual void DragTargetDragEnter(CefRefPtr<CefDragData> drag_data,

const CefMouseEvent& event,

DragOperationsMask allowed_ops) = 0;

///

/// Call this method each time the mouse is moved across the web view during

/// a drag operation (after calling DragTargetDragEnter and before calling

/// DragTargetDragLeave/DragTargetDrop).

/// This method is only used when window rendering is disabled.

///

/*--cef()--*/

virtual void DragTargetDragOver(const CefMouseEvent& event,

DragOperationsMask allowed_ops) = 0;

///

/// Call this method when the user drags the mouse out of the web view (after

/// calling DragTargetDragEnter).

/// This method is only used when window rendering is disabled.

///

/*--cef()--*/

virtual void DragTargetDragLeave() = 0;

///

/// Call this method when the user completes the drag operation by dropping

/// the object onto the web view (after calling DragTargetDragEnter).

/// The object being dropped is |drag_data|, given as an argument to

/// the previous DragTargetDragEnter call.

/// This method is only used when window rendering is disabled.

///

/*--cef()--*/

virtual void DragTargetDrop(const CefMouseEvent& event) = 0;

///

/// Call this method when the drag operation started by a

/// CefRenderHandler::StartDragging call has ended either in a drop or

/// by being cancelled. |x| and |y| are mouse coordinates relative to the

/// upper-left corner of the view. If the web view is both the drag source

/// and the drag target then all DragTarget* methods should be called before

/// DragSource* mthods.

/// This method is only used when window rendering is disabled.

///

/*--cef()--*/

virtual void DragSourceEndedAt(int x, int y, DragOperationsMask op) = 0;

///

/// Call this method when the drag operation started by a

/// CefRenderHandler::StartDragging call has completed. This method may be

/// called immediately without first calling DragSourceEndedAt to cancel a

/// drag operation. If the web view is both the drag source and the drag

/// target then all DragTarget* methods should be called before DragSource*

/// mthods.

/// This method is only used when window rendering is disabled.

///

/*--cef()--*/

virtual void DragSourceSystemDragEnded() = 0;

///

/// Returns the current visible navigation entry for this browser. This method

/// can only be called on the UI thread.

///

/*--cef()--*/

virtual CefRefPtr<CefNavigationEntry> GetVisibleNavigationEntry() = 0;

///

/// Set accessibility state for all frames. |accessibility_state| may be

/// default, enabled or disabled. If |accessibility_state| is STATE_DEFAULT

/// then accessibility will be disabled by default and the state may be

/// further controlled with the "force-renderer-accessibility" and

/// "disable-renderer-accessibility" command-line switches. If

/// |accessibility_state| is STATE_ENABLED then accessibility will be enabled.

/// If |accessibility_state| is STATE_DISABLED then accessibility will be

/// completely disabled.

///

/// For windowed browsers accessibility will be enabled in Complete mode

/// (which corresponds to kAccessibilityModeComplete in Chromium). In this

/// mode all platform accessibility objects will be created and managed by

/// Chromium's internal implementation. The client needs only to detect the

/// screen reader and call this method appropriately. For example, on macOS

/// the client can handle the @"AXEnhancedUserInterface" accessibility

/// attribute to detect VoiceOver state changes and on Windows the client can

/// handle WM_GETOBJECT with OBJID_CLIENT to detect accessibility readers.

///

/// For windowless browsers accessibility will be enabled in TreeOnly mode

/// (which corresponds to kAccessibilityModeWebContentsOnly in Chromium). In

/// this mode renderer accessibility is enabled, the full tree is computed,

/// and events are passed to CefAccessibiltyHandler, but platform

/// accessibility objects are not created. The client may implement platform

/// accessibility objects using CefAccessibiltyHandler callbacks if desired.

///

/*--cef()--*/

virtual void SetAccessibilityState(cef_state_t accessibility_state) = 0;

///

/// Enable notifications of auto resize via CefDisplayHandler::OnAutoResize.

/// Notifications are disabled by default. |min_size| and |max_size| define

/// the range of allowed sizes.

///

/*--cef()--*/

virtual void SetAutoResizeEnabled(bool enabled,

const CefSize& min_size,

const CefSize& max_size) = 0;

///

/// Returns the extension hosted in this browser or NULL if no extension is

/// hosted. See CefRequestContext::LoadExtension for details.

///

/*--cef()--*/

virtual CefRefPtr<CefExtension> GetExtension() = 0;

///

/// Returns true if this browser is hosting an extension background script.

/// Background hosts do not have a window and are not displayable. See

/// CefRequestContext::LoadExtension for details.

///

/*--cef()--*/

virtual bool IsBackgroundHost() = 0;

///

/// Set whether the browser's audio is muted.

///

/*--cef()--*/

virtual void SetAudioMuted(bool mute) = 0;

///

/// Returns true if the browser's audio is muted. This method can only be

/// called on the UI thread.

///

/*--cef()--*/

virtual bool IsAudioMuted() = 0;

///

/// Returns true if the renderer is currently in browser fullscreen. This

/// differs from window fullscreen in that browser fullscreen is entered using

/// the JavaScript Fullscreen API and modifies CSS attributes such as the

/// ::backdrop pseudo-element and :fullscreen pseudo-class. This method can

/// only be called on the UI thread.

///

/*--cef()--*/

virtual bool IsFullscreen() = 0;

///

/// Requests the renderer to exit browser fullscreen. In most cases exiting

/// window fullscreen should also exit browser fullscreen. With the Alloy

/// runtime this method should be called in response to a user action such as

/// clicking the green traffic light button on MacOS

/// (CefWindowDelegate::OnWindowFullscreenTransition callback) or pressing the

/// "ESC" key (CefKeyboardHandler::OnPreKeyEvent callback). With the Chrome

/// runtime these standard exit actions are handled internally but

/// new/additional user actions can use this method. Set |will_cause_resize|

/// to true if exiting browser fullscreen will cause a view resize.

///

/*--cef()--*/

virtual void ExitFullscreen(bool will_cause_resize) = 0;

///

/// Returns true if a Chrome command is supported and enabled. Values for

/// |command_id| can be found in the cef_command_ids.h file. This method can

/// only be called on the UI thread. Only used with the Chrome runtime.

///

/*--cef()--*/

virtual bool CanExecuteChromeCommand(int command_id) = 0;