561 lines
24 KiB
C++
561 lines
24 KiB
C++
// Copyright (c) 2008 The Chromium Embedded Framework Authors. All rights
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// reserved. Use of this source code is governed by a BSD-style license that
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// can be found in the LICENSE file.
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#ifndef _CEFCLIENT_H
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#define _CEFCLIENT_H
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#include "include/cef.h"
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#include "download_handler.h"
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#include "util.h"
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// Define this value to redirect all popup URLs to the main application browser
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// window.
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//#define TEST_REDIRECT_POPUP_URLS
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// Client implementation of the browser handler class
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class ClientHandler : public CefThreadSafeBase<CefHandler>
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{
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public:
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// Implements the DownloadListener interface.
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class ClientDownloadListener : public CefThreadSafeBase<DownloadListener>
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{
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public:
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ClientDownloadListener(ClientHandler* handler) : handler_(handler) {}
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// Called when the download is complete.
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virtual void NotifyDownloadComplete(const CefString& fileName);
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// Called if the download fails.
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virtual void NotifyDownloadError(const CefString& fileName);
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private:
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ClientHandler* handler_;
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};
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ClientHandler();
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virtual ~ClientHandler();
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// Called on the UI thread before a new window is created. The |parentBrowser|
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// parameter will point to the parent browser window, if any. The |popup|
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// parameter will be true if the new window is a popup window, in which case
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// |popupFeatures| will contain information about the style of popup window
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// requested. If you create the window yourself you should populate the window
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// handle member of |createInfo| and return RV_HANDLED. Otherwise, return
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// RV_CONTINUE and the framework will create the window. By default, a newly
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// created window will recieve the same handler as the parent window. To
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// change the handler for the new window modify the object that |handler|
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// points to.
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virtual RetVal HandleBeforeCreated(CefRefPtr<CefBrowser> parentBrowser,
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CefWindowInfo& createInfo, bool popup,
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const CefPopupFeatures& popupFeatures,
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CefRefPtr<CefHandler>& handler,
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CefString& url,
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CefBrowserSettings& settings);
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// Called on the UI thread after a new window is created. The return value is
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// currently ignored.
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virtual RetVal HandleAfterCreated(CefRefPtr<CefBrowser> browser);
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// Called on the UI thread when a frame's address has changed. The return
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// value is currently ignored.
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virtual RetVal HandleAddressChange(CefRefPtr<CefBrowser> browser,
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CefRefPtr<CefFrame> frame,
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const CefString& url);
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// Called on the UI thread when the page title changes. The return value is
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// currently ignored.
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virtual RetVal HandleTitleChange(CefRefPtr<CefBrowser> browser,
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const CefString& title);
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// Called on the UI thread when the navigation state has changed. The return
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// value is currently ignored.
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virtual RetVal HandleNavStateChange(CefRefPtr<CefBrowser> browser,
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bool canGoBack, bool canGoForward);
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// Called on the UI thread before browser navigation. The client has an
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// opportunity to modify the |request| object if desired. Return RV_HANDLED
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// to cancel navigation.
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virtual RetVal HandleBeforeBrowse(CefRefPtr<CefBrowser> browser,
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CefRefPtr<CefFrame> frame,
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CefRefPtr<CefRequest> request,
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NavType navType, bool isRedirect)
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{
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REQUIRE_UI_THREAD();
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return RV_CONTINUE;
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}
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// Called on the UI thread when the browser begins loading a frame. The
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// |frame| value will never be empty -- call the IsMain() method to check if
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// this frame is the main frame. Multiple frames may be loading at the same
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// time. Sub-frames may start or continue loading after the main frame load
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// has ended. This method may not be called for a particular frame if the load
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// request for that frame fails. The return value is currently ignored.
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virtual RetVal HandleLoadStart(CefRefPtr<CefBrowser> browser,
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CefRefPtr<CefFrame> frame);
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// Called on the UI thread when the browser is done loading a frame. The
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// |frame| value will never be empty -- call the IsMain() method to check if
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// this frame is the main frame. Multiple frames may be loading at the same
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// time. Sub-frames may start or continue loading after the main frame load
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// has ended. This method will always be called for all frames irrespective of
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// whether the request completes successfully. The return value is currently
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// ignored.
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virtual RetVal HandleLoadEnd(CefRefPtr<CefBrowser> browser,
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CefRefPtr<CefFrame> frame,
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int httpStatusCode);
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// Called on the UI thread when the browser fails to load a resource.
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// |errorCode| is the error code number and |failedUrl| is the URL that failed
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// to load. To provide custom error text assign the text to |errorText| and
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// return RV_HANDLED. Otherwise, return RV_CONTINUE for the default error
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// text.
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virtual RetVal HandleLoadError(CefRefPtr<CefBrowser> browser,
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CefRefPtr<CefFrame> frame,
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ErrorCode errorCode,
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const CefString& failedUrl,
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CefString& errorText);
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// Called on the IO thread before a resource is loaded. To allow the resource
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// to load normally return RV_CONTINUE. To redirect the resource to a new url
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// populate the |redirectUrl| value and return RV_CONTINUE. To specify data
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// for the resource return a CefStream object in |resourceStream|, set
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// |mimeType| to the resource stream's mime type, and return RV_CONTINUE. To
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// cancel loading of the resource return RV_HANDLED. Any modifications to
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// |request| will be observed. If the URL in |request| is changed and
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// |redirectUrl| is also set, the URL in |request| will be used.
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virtual RetVal HandleBeforeResourceLoad(CefRefPtr<CefBrowser> browser,
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CefRefPtr<CefRequest> request,
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CefString& redirectUrl,
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CefRefPtr<CefStreamReader>& resourceStream,
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CefString& mimeType,
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int loadFlags);
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// Called on the IO thread to handle requests for URLs with an unknown
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// protocol component. Return RV_HANDLED to indicate that the request should
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// succeed because it was externally handled. Set |allow_os_execution| to true
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// and return RV_CONTINUE to attempt execution via the registered OS protocol
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// handler, if any. If RV_CONTINUE is returned and either |allow_os_execution|
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// is false or OS protocol handler execution fails then the request will fail
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// with an error condition.
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// SECURITY WARNING: YOU SHOULD USE THIS METHOD TO ENFORCE RESTRICTIONS BASED
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// ON SCHEME, HOST OR OTHER URL ANALYSIS BEFORE ALLOWING OS EXECUTION.
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virtual RetVal HandleProtocolExecution(CefRefPtr<CefBrowser> browser,
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const CefString& url,
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bool* allow_os_execution)
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{
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REQUIRE_IO_THREAD();
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return RV_CONTINUE;
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}
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// Called on the UI thread when a server indicates via the
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// 'Content-Disposition' header that a response represents a file to download.
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// |mimeType| is the mime type for the download, |fileName| is the suggested
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// target file name and |contentLength| is either the value of the
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// 'Content-Size' header or -1 if no size was provided. Set |handler| to the
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// CefDownloadHandler instance that will recieve the file contents. Return
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// RV_CONTINUE to download the file or RV_HANDLED to cancel the file download.
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virtual RetVal HandleDownloadResponse(CefRefPtr<CefBrowser> browser,
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const CefString& mimeType,
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const CefString& fileName,
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int64 contentLength,
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CefRefPtr<CefDownloadHandler>& handler);
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// Called on the IO thread when the browser needs credentials from the user.
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// |isProxy| indicates whether the host is a proxy server. |host| contains the
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// hostname and port number. Set |username| and |password| and return
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// RV_HANDLED to handle the request. Return RV_CONTINUE to cancel the request.
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virtual RetVal HandleAuthenticationRequest(CefRefPtr<CefBrowser> browser,
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bool isProxy,
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const CefString& host,
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const CefString& realm,
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const CefString& scheme,
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CefString& username,
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CefString& password)
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{
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REQUIRE_IO_THREAD();
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return RV_CONTINUE;
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}
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// Called on the UI thread before a context menu is displayed. To cancel
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// display of the default context menu return RV_HANDLED.
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virtual RetVal HandleBeforeMenu(CefRefPtr<CefBrowser> browser,
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const MenuInfo& menuInfo)
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{
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REQUIRE_UI_THREAD();
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return RV_CONTINUE;
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}
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// Called on the UI thread to optionally override the default text for a
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// context menu item. |label| contains the default text and may be modified to
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// substitute alternate text. The return value is currently ignored.
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virtual RetVal HandleGetMenuLabel(CefRefPtr<CefBrowser> browser,
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MenuId menuId, CefString& label)
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{
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REQUIRE_UI_THREAD();
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return RV_CONTINUE;
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}
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// Called on the UI thread when an option is selected from the default context
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// menu. Return RV_HANDLED to cancel default handling of the action.
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virtual RetVal HandleMenuAction(CefRefPtr<CefBrowser> browser,
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MenuId menuId)
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{
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REQUIRE_UI_THREAD();
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return RV_CONTINUE;
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}
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// Called on the UI thread to allow customization of standard print options
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// before the print dialog is displayed. |printOptions| allows specification
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// of paper size, orientation and margins. Note that the specified margins may
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// be adjusted if they are outside the range supported by the printer. All
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// units are in inches. Return RV_CONTINUE to display the default print
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// options or RV_HANDLED to display the modified |printOptions|.
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virtual RetVal HandlePrintOptions(CefRefPtr<CefBrowser> browser,
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CefPrintOptions& printOptions)
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{
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REQUIRE_UI_THREAD();
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return RV_CONTINUE;
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}
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// Called on the UI thread to format print headers and footers. |printInfo|
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// contains platform-specific information about the printer context. |url| is
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// the URL if the currently printing page, |title| is the title of the
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// currently printing page, |currentPage| is the current page number and
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// |maxPages| is the total number of pages. Six default header locations are
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// provided by the implementation: top left, top center, top right, bottom
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// left, bottom center and bottom right. To use one of these default locations
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// just assign a string to the appropriate variable. To draw the header and
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// footer yourself return RV_HANDLED. Otherwise, populate the approprate
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// variables and return RV_CONTINUE.
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virtual RetVal HandlePrintHeaderFooter(CefRefPtr<CefBrowser> browser,
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CefRefPtr<CefFrame> frame,
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CefPrintInfo& printInfo,
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const CefString& url,
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const CefString& title,
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int currentPage, int maxPages,
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CefString& topLeft,
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CefString& topCenter,
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CefString& topRight,
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CefString& bottomLeft,
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CefString& bottomCenter,
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CefString& bottomRight);
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// Called on the UI thread to run a JS alert message. Return RV_CONTINUE to
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// display the default alert or RV_HANDLED if you displayed a custom alert.
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virtual RetVal HandleJSAlert(CefRefPtr<CefBrowser> browser,
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CefRefPtr<CefFrame> frame,
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const CefString& message)
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{
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REQUIRE_UI_THREAD();
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return RV_CONTINUE;
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}
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// Called on the UI thread to run a JS confirm request. Return RV_CONTINUE to
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// display the default alert or RV_HANDLED if you displayed a custom alert. If
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// you handled the alert set |retval| to true if the user accepted the
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// confirmation.
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virtual RetVal HandleJSConfirm(CefRefPtr<CefBrowser> browser,
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CefRefPtr<CefFrame> frame,
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const CefString& message, bool& retval)
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{
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REQUIRE_UI_THREAD();
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return RV_CONTINUE;
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}
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// Called on the UI thread to run a JS prompt request. Return RV_CONTINUE to
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// display the default prompt or RV_HANDLED if you displayed a custom prompt.
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// If you handled the prompt set |retval| to true if the user accepted the
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// prompt and request and |result| to the resulting value.
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virtual RetVal HandleJSPrompt(CefRefPtr<CefBrowser> browser,
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CefRefPtr<CefFrame> frame,
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const CefString& message,
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const CefString& defaultValue,
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bool& retval,
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CefString& result)
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{
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REQUIRE_UI_THREAD();
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return RV_CONTINUE;
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}
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// Called on the UI thread for adding values to a frame's JavaScript 'window'
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// object. The return value is currently ignored.
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virtual RetVal HandleJSBinding(CefRefPtr<CefBrowser> browser,
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CefRefPtr<CefFrame> frame,
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CefRefPtr<CefV8Value> object);
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// Called on the UI thread just before a window is closed. The return value is
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// currently ignored.
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virtual RetVal HandleBeforeWindowClose(CefRefPtr<CefBrowser> browser);
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// Called on the UI thread when the browser component is about to loose focus.
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// For instance, if focus was on the last HTML element and the user pressed
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// the TAB key. The return value is currently ignored.
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virtual RetVal HandleTakeFocus(CefRefPtr<CefBrowser> browser, bool reverse)
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{
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REQUIRE_UI_THREAD();
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return RV_CONTINUE;
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}
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// Called on the UI thread when the browser component is requesting focus.
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// |isWidget| will be true if the focus is requested for a child widget of the
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// browser window. Return RV_CONTINUE to allow the focus to be set or
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// RV_HANDLED to cancel setting the focus.
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virtual RetVal HandleSetFocus(CefRefPtr<CefBrowser> browser,
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bool isWidget)
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{
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REQUIRE_UI_THREAD();
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return RV_CONTINUE;
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}
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// Called on the UI thread when the browser component receives a keyboard
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// event. |type| is the type of keyboard event, |code| is the windows scan-
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// code for the event, |modifiers| is a set of bit-flags describing any
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// pressed modifier keys and |isSystemKey| is true if Windows considers this a
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// 'system key' message (see
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// http://msdn.microsoft.com/en-us/library/ms646286(VS.85).aspx). Return
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// RV_HANDLED if the keyboard event was handled or RV_CONTINUE to allow the
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// browser component to handle the event.
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virtual RetVal HandleKeyEvent(CefRefPtr<CefBrowser> browser,
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KeyEventType type,
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int code,
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int modifiers,
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bool isSystemKey)
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{
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REQUIRE_UI_THREAD();
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return RV_CONTINUE;
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}
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// Called on the UI thread when the browser is about to display a tooltip.
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// |text| contains the text that will be displayed in the tooltip. To handle
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// the display of the tooltip yourself return RV_HANDLED. Otherwise, you can
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// optionally modify |text| and then return RV_CONTINUE to allow the browser
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// to display the tooltip.
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virtual RetVal HandleTooltip(CefRefPtr<CefBrowser> browser,
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CefString& text)
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{
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REQUIRE_UI_THREAD();
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return RV_CONTINUE;
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}
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// Called on the UI thread when the browser has a status message. |text|
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// contains the text that will be displayed in the status message and |type|
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// indicates the status message type. The return value is currently ignored.
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virtual RetVal HandleStatus(CefRefPtr<CefBrowser> browser,
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const CefString& text, StatusType type)
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{
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REQUIRE_UI_THREAD();
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return RV_CONTINUE;
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}
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// Called on the UI thread to display a console message. Return RV_HANDLED to
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// stop the message from being output to the console.
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virtual RetVal HandleConsoleMessage(CefRefPtr<CefBrowser> browser,
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const CefString& message,
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const CefString& source, int line);
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// Called on the UI thread to report find results returned by
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// CefBrowser::Find(). |identifer| is the identifier passed to
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// CefBrowser::Find(), |count| is the number of matches currently identified,
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// |selectionRect| is the location of where the match was found (in window
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// coordinates), |activeMatchOrdinal| is the current position in the search
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// results, and |finalUpdate| is true if this is the last find notification.
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// The return value is currently ignored.
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virtual RetVal HandleFindResult(CefRefPtr<CefBrowser> browser,
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int identifier, int count,
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const CefRect& selectionRect,
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int activeMatchOrdinal, bool finalUpdate)
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{
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REQUIRE_UI_THREAD();
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return RV_CONTINUE;
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}
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// Called on the UI thread to retrieve either the simulated screen rectangle
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// if |screen| is true or the view rectangle if |screen| is false. The view
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// rectangle is relative to the screen coordinates. This method is only called
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// if window rendering has been disabled. Return RV_CONTINUE if the rectangle
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// was provided.
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virtual RetVal HandleGetRect(CefRefPtr<CefBrowser> browser, bool screen,
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CefRect& rect)
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{
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// Only called when rendering off-screen.
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ASSERT(false);
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return RV_CONTINUE;
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}
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// Called on the UI thread retrieve the translation from view coordinates to
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// actual screen coordinates. This method is only called if window rendering
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// has been disabled. Return RV_CONTINUE if the screen coordinates were
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// provided.
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virtual RetVal HandleGetScreenPoint(CefRefPtr<CefBrowser> browser,
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int viewX, int viewY, int& screenX,
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int& screenY)
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{
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// Only called when rendering off-screen.
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ASSERT(false);
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return RV_CONTINUE;
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}
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// Called on the UI thread when the browser wants to show, hide, resize or
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// move the popup. If |show| is true and |rect| is zero size then the popup
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// should be shown. If |show| is true and |rect| is non-zero size then |rect|
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// represents the popup location in view coordinates. If |show| is false
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// then the popup should be hidden. This method is only called if window
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// rendering has been disabled. The return value is currently ignored.
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virtual RetVal HandlePopupChange(CefRefPtr<CefBrowser> browser, bool show,
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const CefRect& rect)
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{
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// Only called when rendering off-screen.
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ASSERT(false);
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return RV_CONTINUE;
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}
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// Called when an element should be painted. |type| indicates whether the
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// element is the view or the popup. |buffer| contains the pixel data for the
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// whole image. |dirtyRect| indicates the portion of the image that has been
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// repainted. On Windows |buffer| will be width*height*4 bytes in size and
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// represents a BGRA image with an upper-left origin. This method is only
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// called if window rendering has been disabled. The return value is currently
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// ignored.
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virtual RetVal HandlePaint(CefRefPtr<CefBrowser> browser,
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PaintElementType type, const CefRect& dirtyRect,
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const void* buffer)
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{
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// Only called when rendering off-screen.
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ASSERT(false);
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return RV_CONTINUE;
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}
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// Called when the browser window's cursor has changed. This method is only
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// called if window rendering has been disabled. The return value is currently
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// ignored.
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virtual RetVal HandleCursorChange(CefRefPtr<CefBrowser> browser,
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CefCursorHandle cursor)
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{
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// Only called when rendering off-screen.
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ASSERT(false);
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return RV_CONTINUE;
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}
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// Retrieve the current navigation state flags
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void SetMainHwnd(CefWindowHandle hwnd);
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CefWindowHandle GetMainHwnd() { return m_MainHwnd; }
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void SetEditHwnd(CefWindowHandle hwnd);
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void SetButtonHwnds(CefWindowHandle backHwnd,
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CefWindowHandle forwardHwnd,
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CefWindowHandle reloadHwnd,
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CefWindowHandle stopHwnd);
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CefRefPtr<CefBrowser> GetBrowser() { return m_Browser; }
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CefWindowHandle GetBrowserHwnd() { return m_BrowserHwnd; }
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std::string GetLogFile();
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void SetLastDownloadFile(const std::string& fileName);
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std::string GetLastDownloadFile();
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// DOM visitors will be called after the associated path is loaded.
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void AddDOMVisitor(const std::string& path, CefRefPtr<CefDOMVisitor> visitor);
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CefRefPtr<CefDOMVisitor> GetDOMVisitor(const std::string& path);
|
|
|
|
// Send a notification to the application. Notifications should not block the
|
|
// caller.
|
|
enum NotificationType
|
|
{
|
|
NOTIFY_CONSOLE_MESSAGE,
|
|
NOTIFY_DOWNLOAD_COMPLETE,
|
|
NOTIFY_DOWNLOAD_ERROR,
|
|
};
|
|
void SendNotification(NotificationType type);
|
|
|
|
protected:
|
|
virtual void SetLoading(bool isLoading);
|
|
virtual void SetNavState(bool canGoBack, bool canGoForward);
|
|
|
|
// The child browser window
|
|
CefRefPtr<CefBrowser> m_Browser;
|
|
|
|
// The main frame window handle
|
|
CefWindowHandle m_MainHwnd;
|
|
|
|
// The child browser window handle
|
|
CefWindowHandle m_BrowserHwnd;
|
|
|
|
// The edit window handle
|
|
CefWindowHandle m_EditHwnd;
|
|
|
|
// The button window handles
|
|
CefWindowHandle m_BackHwnd;
|
|
CefWindowHandle m_ForwardHwnd;
|
|
CefWindowHandle m_StopHwnd;
|
|
CefWindowHandle m_ReloadHwnd;
|
|
|
|
std::string m_LogFile;
|
|
|
|
// Support for downloading files.
|
|
CefRefPtr<DownloadListener> m_DownloadListener;
|
|
std::string m_LastDownloadFile;
|
|
|
|
typedef std::map<std::string, CefRefPtr<CefDOMVisitor> > DOMVisitorMap;
|
|
DOMVisitorMap m_DOMVisitors;
|
|
};
|
|
|
|
// Handler for popup windows that loads the request in an existing browser
|
|
// window.
|
|
class ClientPopupHandler : public ClientHandler
|
|
{
|
|
public:
|
|
ClientPopupHandler(CefRefPtr<CefBrowser> parentBrowser)
|
|
: m_ParentBrowser(parentBrowser)
|
|
{
|
|
}
|
|
virtual ~ClientPopupHandler()
|
|
{
|
|
}
|
|
|
|
virtual RetVal HandleBeforeBrowse(CefRefPtr<CefBrowser> browser,
|
|
CefRefPtr<CefFrame> frame,
|
|
CefRefPtr<CefRequest> request,
|
|
NavType navType, bool isRedirect)
|
|
{
|
|
REQUIRE_UI_THREAD();
|
|
|
|
if (m_ParentBrowser.get()) {
|
|
m_ParentBrowser->GetMainFrame()->LoadRequest(request);
|
|
browser->CloseBrowser();
|
|
m_ParentBrowser = NULL;
|
|
}
|
|
return RV_HANDLED;
|
|
}
|
|
|
|
protected:
|
|
CefRefPtr<CefBrowser> m_ParentBrowser;
|
|
};
|
|
|
|
// Returns the main browser window instance.
|
|
CefRefPtr<CefBrowser> AppGetBrowser();
|
|
|
|
// Returns the main application window handle.
|
|
CefWindowHandle AppGetMainHwnd();
|
|
|
|
// Returns the application working directory.
|
|
std::string AppGetWorkingDirectory();
|
|
|
|
// Implementations for various tests.
|
|
void RunGetSourceTest(CefRefPtr<CefBrowser> browser);
|
|
void RunGetTextTest(CefRefPtr<CefBrowser> browser);
|
|
void RunRequestTest(CefRefPtr<CefBrowser> browser);
|
|
void RunJavaScriptExecuteTest(CefRefPtr<CefBrowser> browser);
|
|
void RunPopupTest(CefRefPtr<CefBrowser> browser);
|
|
void RunLocalStorageTest(CefRefPtr<CefBrowser> browser);
|
|
void RunAccelerated2DCanvasTest(CefRefPtr<CefBrowser> browser);
|
|
void RunAcceleratedLayersTest(CefRefPtr<CefBrowser> browser);
|
|
void RunWebGLTest(CefRefPtr<CefBrowser> browser);
|
|
void RunHTML5VideoTest(CefRefPtr<CefBrowser> browser);
|
|
void RunXMLHTTPRequestTest(CefRefPtr<CefBrowser> browser);
|
|
void RunWebURLRequestTest(CefRefPtr<CefBrowser> browser);
|
|
void RunDOMAccessTest(CefRefPtr<CefBrowser> browser);
|
|
void RunDragDropTest(CefRefPtr<CefBrowser> browser);
|
|
|
|
#endif // _CEFCLIENT_H
|