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Add CefZoomHandler interface to support custom zoom handling (issue #733).

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git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@824 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
This commit is contained in:
Marshall Greenblatt
2012-10-01 20:35:35 +00:00
parent a3ac7b446f
commit 7a0ff637f0
16 changed files with 493 additions and 2 deletions
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7
cef1/include/capi/cef_client_capi.h
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@@ -144,6 +144,13 @@ typedef struct _cef_client_t {
///
struct _cef_geolocation_handler_t* (CEF_CALLBACK *get_geolocation_handler)(
struct _cef_client_t* self);
///
// Return the handler for zoom events. If no handler is provided the default
// zoom behavior will be used.
///
struct _cef_zoom_handler_t* (CEF_CALLBACK *get_zoom_handler)(
struct _cef_client_t* self);
} cef_client_t;

83
cef1/include/capi/cef_zoom_handler_capi.h Normal file
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@@ -0,0 +1,83 @@
// 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.
//
// ---------------------------------------------------------------------------
//
// This file was generated by the CEF translator tool and should not edited
// by hand. See the translator.README.txt file in the tools directory for
// more information.
//
#ifndef CEF_INCLUDE_CAPI_CEF_ZOOM_HANDLER_CAPI_H_
#define CEF_INCLUDE_CAPI_CEF_ZOOM_HANDLER_CAPI_H_
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include "include/capi/cef_base_capi.h"
///
// Implement this structure to customize zoom handling. The functions of this
// structure will be called on the UI thread.
///
typedef struct _cef_zoom_handler_t {
///
// Base structure.
///
cef_base_t base;
///
// Called when the browser wants to retrieve the zoom level for the given
// |url|. Return true (1) if |zoomLevel| has been set to the custom zoom
// level. Return false (0) for the browser's default zoom handling behavior.
///
int (CEF_CALLBACK *on_get_zoom_level)(struct _cef_zoom_handler_t* self,
struct _cef_browser_t* browser, const cef_string_t* url,
double* zoomLevel);
///
// Called when the browser's zoom level has been set to |zoomLevel| for the
// given |url|. Return true (1) to indicate that the new setting has been
// handled. Return false (0) to use the browser's default zoom handling
// behavior.
///
int (CEF_CALLBACK *on_set_zoom_level)(struct _cef_zoom_handler_t* self,
struct _cef_browser_t* browser, const cef_string_t* url,
double zoomLevel);
} cef_zoom_handler_t;
#ifdef __cplusplus
}
#endif
#endif // CEF_INCLUDE_CAPI_CEF_ZOOM_HANDLER_CAPI_H_

10
cef1/include/cef_client.h
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@@ -54,6 +54,7 @@
#include "include/cef_render_handler.h"
#include "include/cef_request_handler.h"
#include "include/cef_v8context_handler.h"
#include "include/cef_zoom_handler.h"
///
// Implement this interface to provide handler implementations.
@@ -181,6 +182,15 @@ class CefClient : public virtual CefBase {
virtual CefRefPtr<CefGeolocationHandler> GetGeolocationHandler() {
return NULL;
}
///
// Return the handler for zoom events. If no handler is provided the default
// zoom behavior will be used.
///
/*--cef()--*/
virtual CefRefPtr<CefZoomHandler> GetZoomHandler() {
return NULL;
}
};
#endif // CEF_INCLUDE_CEF_CLIENT_H_

72
cef1/include/cef_zoom_handler.h Normal file
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@@ -0,0 +1,72 @@
// 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_ZOOM_HANDLER_H_
#define CEF_INCLUDE_CEF_ZOOM_HANDLER_H_
#pragma once
#include "include/cef_base.h"
#include "include/cef_browser.h"
///
// Implement this interface to customize zoom handling. The methods of this
// class will be called on the UI thread.
///
/*--cef(source=client)--*/
class CefZoomHandler : public virtual CefBase {
public:
///
// Called when the browser wants to retrieve the zoom level for the given
// |url|. Return true if |zoomLevel| has been set to the custom zoom level.
// Return false for the browser's default zoom handling behavior.
///
/*--cef()--*/
virtual bool OnGetZoomLevel(CefRefPtr<CefBrowser> browser,
const CefString& url,
double& zoomLevel) { return false; }
///
// Called when the browser's zoom level has been set to |zoomLevel| for the
// given |url|. Return true to indicate that the new setting has been handled.
// Return false to use the browser's default zoom handling behavior.
///
/*--cef()--*/
virtual bool OnSetZoomLevel(CefRefPtr<CefBrowser> browser,
const CefString& url,
double zoomLevel) { return false; }
};
#endif // CEF_INCLUDE_CEF_ZOOM_HANDLER_H_