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// Copyright (c) 2012 Marshall A. Greenblatt. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the name Chromium Embedded
// Framework nor the names of its contributors may be used to endorse
// or promote products derived from this software without specific prior
// written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// ---------------------------------------------------------------------------
//
// The contents of this file must follow a specific format in order to
// support the CEF translator tool. See the translator.README.txt file in the
// tools directory for more information.
//
#ifndef CEF_INCLUDE_CEF_BROWSER_H_
#define CEF_INCLUDE_CEF_BROWSER_H_
#pragma once
#include <vector>
#include "include/cef_base.h"
#include "include/cef_devtools_message_observer.h"
#include "include/cef_drag_data.h"
#include "include/cef_frame.h"
#include "include/cef_image.h"
#include "include/cef_navigation_entry.h"
#include "include/cef_registration.h"
#include "include/cef_request_context.h"
class CefBrowserHost;
class CefClient;
///
// Class used to represent a browser. When used in the browser process the
// methods of this class may be called on any thread unless otherwise indicated
// in the comments. When used in the render process the methods of this class
// may only be called on the main thread.
///
/*--cef(source=library)--*/
class CefBrowser : public virtual CefBaseRefCounted {
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(capi_name=get_frame_byident)--*/
virtual CefRefPtr<CefFrame> GetFrame(int64 identifier) = 0;
///
// Returns the frame with the specified name, or NULL if not found.
///
/*--cef(optional_param=name)--*/
virtual CefRefPtr<CefFrame> GetFrame(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<int64>& identifiers) = 0;
///
// Returns the names of all existing frames.
///
/*--cef()--*/
virtual void GetFrameNames(std::vector<CefString>& names) = 0;
};
///
// Callback interface for CefBrowserHost::RunFileDialog. The methods of this
// class will be called on the browser process UI thread.
///
/*--cef(source=client)--*/
class CefRunFileDialogCallback : public virtual CefBaseRefCounted {
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;
};
///
// Callback interface for CefBrowserHost::GetNavigationEntries. The methods of
// this class will be called on the browser process UI thread.
///
/*--cef(source=client)--*/
class CefNavigationEntryVisitor : public virtual CefBaseRefCounted {
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;
};
///
// Callback interface for CefBrowserHost::PrintToPDF. The methods of this class
// will be called on the browser process UI thread.
///
/*--cef(source=client)--*/
class CefPdfPrintCallback : public virtual CefBaseRefCounted {
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;
};
///
// Callback interface for CefBrowserHost::DownloadImage. The methods of this
// class will be called on the browser process UI thread.
///
/*--cef(source=client)--*/
class CefDownloadImageCallback : public virtual CefBaseRefCounted {
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;
};
///
// Class used to represent the browser process aspects of a browser. The methods
// of this class can only be called in the browser process. They may be called
// on any thread in that process unless otherwise indicated in the comments.
///
/*--cef(source=library)--*/
class CefBrowserHost : public virtual CefBaseRefCounted {
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,
optional_param=request_context,optional_param=extra_info)--*/
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,
optional_param=request_context,optional_param=extra_info)--*/
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;
///
// Get the current zoom level. The default zoom level is 0.0. 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. 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,
optional_param=accept_filters)--*/
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 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,
optional_param=settings,optional_param=inspect_element_at)--*/
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:
// A. The client receives a WM_IME_COMPOSITION message with a GCS_RESULTSTR
// flag (on Windows), or;
// B. The client receives a "commit" signal of GtkIMContext (on Linux), or;
// C. 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;
};
#endif // CEF_INCLUDE_CEF_BROWSER_H_
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