mirror of
https://bitbucket.org/chromiumembedded/cef
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ebee84755e
This change introduces a few minor CEF API behavior changes: - A CefProcessMessage object cannot be reused after being passed to SendProcessMessage. - The |extra_info| argument to CefRenderProcessHandler::OnBrowserCreated may now be NULL. Where appropriate, we now utilize the default UTF string encoding format and shared memory to reduce copies and conversions for the cross-process transfer of arbitrary-length strings. For example, CefFrame::GetSource/GetText now involves zero UTF conversions and zero copies in the browser process for the CefString delivered to CefStringVisitor::Visit().
262 lines
8.4 KiB
C++
262 lines
8.4 KiB
C++
// Copyright (c) 2012 Marshall A. Greenblatt. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the name Chromium Embedded
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// Framework nor the names of its contributors may be used to endorse
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// or promote products derived from this software without specific prior
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// written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// ---------------------------------------------------------------------------
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//
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// The contents of this file must follow a specific format in order to
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// support the CEF translator tool. See the translator.README.txt file in the
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// tools directory for more information.
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//
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#ifndef CEF_INCLUDE_CEF_FRAME_H_
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#define CEF_INCLUDE_CEF_FRAME_H_
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#pragma once
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#include "include/cef_base.h"
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#include "include/cef_dom.h"
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#include "include/cef_process_message.h"
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#include "include/cef_request.h"
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#include "include/cef_stream.h"
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#include "include/cef_string_visitor.h"
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class CefBrowser;
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class CefURLRequest;
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class CefURLRequestClient;
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class CefV8Context;
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///
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// Class used to represent a frame in the browser window. When used in the
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// browser process the methods of this class may be called on any thread unless
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// otherwise indicated in the comments. When used in the render process the
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// methods of this class may only be called on the main thread.
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///
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/*--cef(source=library)--*/
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class CefFrame : public virtual CefBaseRefCounted {
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public:
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///
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// True if this object is currently attached to a valid frame.
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///
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/*--cef()--*/
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virtual bool IsValid() = 0;
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///
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// Execute undo in this frame.
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///
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/*--cef()--*/
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virtual void Undo() = 0;
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///
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// Execute redo in this frame.
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///
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/*--cef()--*/
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virtual void Redo() = 0;
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///
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// Execute cut in this frame.
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///
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/*--cef()--*/
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virtual void Cut() = 0;
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///
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// Execute copy in this frame.
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///
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/*--cef()--*/
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virtual void Copy() = 0;
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///
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// Execute paste in this frame.
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///
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/*--cef()--*/
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virtual void Paste() = 0;
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///
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// Execute delete in this frame.
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///
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/*--cef(capi_name=del)--*/
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virtual void Delete() = 0;
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///
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// Execute select all in this frame.
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///
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/*--cef()--*/
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virtual void SelectAll() = 0;
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///
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// Save this frame's HTML source to a temporary file and open it in the
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// default text viewing application. This method can only be called from the
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// browser process.
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///
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/*--cef()--*/
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virtual void ViewSource() = 0;
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///
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// Retrieve this frame's HTML source as a string sent to the specified
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// visitor.
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///
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/*--cef()--*/
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virtual void GetSource(CefRefPtr<CefStringVisitor> visitor) = 0;
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///
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// Retrieve this frame's display text as a string sent to the specified
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// visitor.
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///
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/*--cef()--*/
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virtual void GetText(CefRefPtr<CefStringVisitor> visitor) = 0;
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///
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// Load the request represented by the |request| object.
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//
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// WARNING: This method will fail with "bad IPC message" reason
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// INVALID_INITIATOR_ORIGIN (213) unless you first navigate to the
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// request origin using some other mechanism (LoadURL, link click, etc).
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///
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/*--cef()--*/
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virtual void LoadRequest(CefRefPtr<CefRequest> request) = 0;
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///
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// Load the specified |url|.
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///
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/*--cef()--*/
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virtual void LoadURL(const CefString& url) = 0;
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///
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// Execute a string of JavaScript code in this frame. The |script_url|
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// parameter is the URL where the script in question can be found, if any.
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// The renderer may request this URL to show the developer the source of the
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// error. The |start_line| parameter is the base line number to use for error
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// reporting.
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///
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/*--cef(optional_param=script_url)--*/
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virtual void ExecuteJavaScript(const CefString& code,
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const CefString& script_url,
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int start_line) = 0;
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///
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// Returns true if this is the main (top-level) frame.
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///
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/*--cef()--*/
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virtual bool IsMain() = 0;
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///
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// Returns true if this is the focused frame.
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///
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/*--cef()--*/
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virtual bool IsFocused() = 0;
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///
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// Returns the name for this frame. If the frame has an assigned name (for
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// example, set via the iframe "name" attribute) then that value will be
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// returned. Otherwise a unique name will be constructed based on the frame
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// parent hierarchy. The main (top-level) frame will always have an empty name
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// value.
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///
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/*--cef()--*/
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virtual CefString GetName() = 0;
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///
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// Returns the globally unique identifier for this frame or < 0 if the
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// underlying frame does not yet exist.
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///
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/*--cef()--*/
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virtual int64 GetIdentifier() = 0;
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///
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// Returns the parent of this frame or NULL if this is the main (top-level)
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// frame.
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///
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/*--cef()--*/
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virtual CefRefPtr<CefFrame> GetParent() = 0;
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///
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// Returns the URL currently loaded in this frame.
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///
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/*--cef()--*/
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virtual CefString GetURL() = 0;
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///
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// Returns the browser that this frame belongs to.
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///
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/*--cef()--*/
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virtual CefRefPtr<CefBrowser> GetBrowser() = 0;
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///
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// Get the V8 context associated with the frame. This method can only be
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// called from the render process.
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///
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/*--cef()--*/
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virtual CefRefPtr<CefV8Context> GetV8Context() = 0;
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///
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// Visit the DOM document. This method can only be called from the render
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// process.
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///
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/*--cef()--*/
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virtual void VisitDOM(CefRefPtr<CefDOMVisitor> visitor) = 0;
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///
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// Create a new URL request that will be treated as originating from this
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// frame and the associated browser. This request may be intercepted by the
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// client via CefResourceRequestHandler or CefSchemeHandlerFactory. Use
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// CefURLRequest::Create instead if you do not want the request to have this
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// association, in which case it may be handled differently (see documentation
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// on that method). Requests may originate from both the browser process and
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// the render process.
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//
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// For requests originating from the browser process:
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// - POST data may only contain a single element of type PDE_TYPE_FILE or
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// PDE_TYPE_BYTES.
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// For requests originating from the render process:
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// - POST data may only contain a single element of type PDE_TYPE_BYTES.
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// - If the response contains Content-Disposition or Mime-Type header values
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// that would not normally be rendered then the response may receive
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// special handling inside the browser (for example, via the file download
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// code path instead of the URL request code path).
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//
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// The |request| object will be marked as read-only after calling this method.
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///
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/*--cef()--*/
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virtual CefRefPtr<CefURLRequest> CreateURLRequest(
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CefRefPtr<CefRequest> request,
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CefRefPtr<CefURLRequestClient> client) = 0;
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///
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// Send a message to the specified |target_process|. Ownership of the message
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// contents will be transferred and the |message| reference will be
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// invalidated. Message delivery is not guaranteed in all cases (for example,
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// if the browser is closing, navigating, or if the target process crashes).
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// Send an ACK message back from the target process if confirmation is
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// required.
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///
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/*--cef()--*/
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virtual void SendProcessMessage(CefProcessId target_process,
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CefRefPtr<CefProcessMessage> message) = 0;
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};
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#endif // CEF_INCLUDE_CEF_FRAME_H_
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