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mirror of https://github.com/salvadordf/CEF4Delphi.git synced 2024-12-04 09:26:52 +02:00
CEF4Delphi/source/uCEFDevToolsMessageObserver.pas
Salvador Díaz Fau dceb2299e3 Moved all JSON functions to the TCEFJson class
- Added TCEFJson.SaveToFile and TCEFJson.LoadFromFile functions
- Added more code comments to DOMVisitor
- Replaced all the code to save the browser preferences in TChromiumCore with the new TCEFJson functions
2020-07-17 12:56:43 +02:00

318 lines
12 KiB
ObjectPascal

// ************************************************************************
// ***************************** CEF4Delphi *******************************
// ************************************************************************
//
// CEF4Delphi is based on DCEF3 which uses CEF to embed a chromium-based
// browser in Delphi applications.
//
// The original license of DCEF3 still applies to CEF4Delphi.
//
// For more information about CEF4Delphi visit :
// https://www.briskbard.com/index.php?lang=en&pageid=cef
//
// Copyright © 2020 Salvador Diaz Fau. All rights reserved.
//
// ************************************************************************
// ************ vvvv Original license and comments below vvvv *************
// ************************************************************************
(*
* Delphi Chromium Embedded 3
*
* Usage allowed under the restrictions of the Lesser GNU General Public License
* or alternatively the restrictions of the Mozilla Public License 1.1
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
* the specific language governing rights and limitations under the License.
*
* Unit owner : Henri Gourvest <hgourvest@gmail.com>
* Web site : http://www.progdigy.com
* Repository : http://code.google.com/p/delphichromiumembedded/
* Group : http://groups.google.com/group/delphichromiumembedded
*
* Embarcadero Technologies, Inc is not permitted to use or redistribute
* this source code without explicit permission.
*
*)
unit uCEFDevToolsMessageObserver;
{$IFDEF FPC}
{$MODE OBJFPC}{$H+}
{$ENDIF}
{$IFNDEF CPUX64}{$ALIGN ON}{$ENDIF}
{$MINENUMSIZE 4}
{$I cef.inc}
interface
uses
uCEFBaseRefCounted, uCEFInterfaces, uCEFTypes;
type
TCEFDevToolsMessageObserverOwn = class(TCefBaseRefCountedOwn, ICefDevToolsMessageObserver)
protected
procedure OnDevToolsMessage(const browser: ICefBrowser; const message_: ICefValue; var aHandled: boolean); virtual;
procedure OnDevToolsMethodResult(const browser: ICefBrowser; message_id: integer; success: boolean; const result: ICefValue); virtual;
procedure OnDevToolsEvent(const browser: ICefBrowser; const method: ustring; const params: ICefValue); virtual;
procedure OnDevToolsAgentAttached(const browser: ICefBrowser); virtual;
procedure OnDevToolsAgentDetached(const browser: ICefBrowser); virtual;
public
constructor Create; virtual;
end;
TCustomDevToolsMessageObserver = class(TCEFDevToolsMessageObserverOwn)
protected
FEvents : Pointer;
procedure OnDevToolsMessage(const browser: ICefBrowser; const message_: ICefValue; var aHandled: boolean); override;
procedure OnDevToolsMethodResult(const browser: ICefBrowser; message_id: integer; success: boolean; const result: ICefValue); override;
procedure OnDevToolsEvent(const browser: ICefBrowser; const method: ustring; const params: ICefValue); override;
procedure OnDevToolsAgentAttached(const browser: ICefBrowser); override;
procedure OnDevToolsAgentDetached(const browser: ICefBrowser); override;
public
constructor Create(const events: IChromiumEvents); reintroduce;
destructor Destroy; override;
end;
implementation
uses
{$IFDEF DELPHI16_UP}
System.SysUtils,
{$ELSE}
SysUtils,
{$ENDIF}
uCEFMiscFunctions, uCEFLibFunctions, uCEFBrowser, uCEFJson;
// ************************************************************
// ************** TCEFDevToolsMessageObserverOwn **************
// ************************************************************
function cef_on_dev_tools_message( self : PCefDevToolsMessageObserver;
browser : PCefBrowser;
const message_ : Pointer;
message_size : NativeUInt): Integer; stdcall;
var
TempObject : TObject;
TempHandled : boolean;
TempValue : ICefValue;
begin
TempObject := CefGetObject(self);
TempHandled := False;
if (TempObject <> nil) and (TempObject is TCEFDevToolsMessageObserverOwn) then
try
TempValue := TCEFJson.Parse(message_, message_size);
TCEFDevToolsMessageObserverOwn(TempObject).OnDevToolsMessage(TCefBrowserRef.UnWrap(browser),
TempValue,
TempHandled);
finally
TempValue := nil;
end;
Result := ord(TempHandled);
end;
procedure cef_on_dev_tools_method_result( self : PCefDevToolsMessageObserver;
browser : PCefBrowser;
message_id : Integer;
success : Integer;
const result : Pointer;
result_size : NativeUInt); stdcall;
var
TempObject : TObject;
TempValue : ICefValue;
begin
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCEFDevToolsMessageObserverOwn) then
try
TempValue := TCEFJson.Parse(result, result_size);
TCEFDevToolsMessageObserverOwn(TempObject).OnDevToolsMethodResult(TCefBrowserRef.UnWrap(browser),
message_id,
success <> 0,
TempValue);
finally
TempValue := nil;
end;
end;
procedure cef_on_dev_tools_event( self : PCefDevToolsMessageObserver;
browser : PCefBrowser;
const method : PCefString;
const params : Pointer;
params_size : NativeUInt); stdcall;
var
TempObject : TObject;
TempValue : ICefValue;
begin
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCEFDevToolsMessageObserverOwn) then
try
TempValue := TCEFJson.Parse(params, params_size);
TCEFDevToolsMessageObserverOwn(TempObject).OnDevToolsEvent(TCefBrowserRef.UnWrap(browser),
CefString(method),
TempValue);
finally
TempValue := nil;
end;
end;
procedure cef_on_dev_tools_agent_attached(self : PCefDevToolsMessageObserver;
browser : PCefBrowser); stdcall;
var
TempObject : TObject;
begin
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCEFDevToolsMessageObserverOwn) then
TCEFDevToolsMessageObserverOwn(TempObject).OnDevToolsAgentAttached(TCefBrowserRef.UnWrap(browser));
end;
procedure cef_on_dev_tools_agent_detached(self : PCefDevToolsMessageObserver;
browser : PCefBrowser); stdcall;
var
TempObject : TObject;
begin
TempObject := CefGetObject(self);
if (TempObject <> nil) and (TempObject is TCEFDevToolsMessageObserverOwn) then
TCEFDevToolsMessageObserverOwn(TempObject).OnDevToolsAgentDetached(TCefBrowserRef.UnWrap(browser));
end;
constructor TCEFDevToolsMessageObserverOwn.Create;
begin
inherited CreateData(SizeOf(TCefDevToolsMessageObserver));
with PCefDevToolsMessageObserver(FData)^ do
begin
on_dev_tools_message := {$IFDEF FPC}@{$ENDIF}cef_on_dev_tools_message;
on_dev_tools_method_result := {$IFDEF FPC}@{$ENDIF}cef_on_dev_tools_method_result;
on_dev_tools_event := {$IFDEF FPC}@{$ENDIF}cef_on_dev_tools_event;
on_dev_tools_agent_attached := {$IFDEF FPC}@{$ENDIF}cef_on_dev_tools_agent_attached;
on_dev_tools_agent_detached := {$IFDEF FPC}@{$ENDIF}cef_on_dev_tools_agent_detached;
end;
end;
procedure TCEFDevToolsMessageObserverOwn.OnDevToolsMessage(const browser : ICefBrowser;
const message_ : ICefValue;
var aHandled : boolean);
begin
//
end;
procedure TCEFDevToolsMessageObserverOwn.OnDevToolsMethodResult(const browser : ICefBrowser;
message_id : integer;
success : boolean;
const result : ICefValue);
begin
//
end;
procedure TCEFDevToolsMessageObserverOwn.OnDevToolsEvent(const browser : ICefBrowser;
const method : ustring;
const params : ICefValue);
begin
//
end;
procedure TCEFDevToolsMessageObserverOwn.OnDevToolsAgentAttached(const browser: ICefBrowser);
begin
//
end;
procedure TCEFDevToolsMessageObserverOwn.OnDevToolsAgentDetached(const browser: ICefBrowser);
begin
//
end;
// ************************************************************
// ************** TCustomDevToolsMessageObserver **************
// ************************************************************
constructor TCustomDevToolsMessageObserver.Create(const events: IChromiumEvents);
begin
inherited Create;
FEvents := Pointer(events);
end;
destructor TCustomDevToolsMessageObserver.Destroy;
begin
FEvents := nil;
inherited Destroy;
end;
procedure TCustomDevToolsMessageObserver.OnDevToolsMessage(const browser : ICefBrowser;
const message_ : ICefValue;
var aHandled : boolean);
begin
try
if (FEvents <> nil) then
IChromiumEvents(FEvents).doOnDevToolsMessage(browser, message_, aHandled);
except
on e : exception do
if CustomExceptionHandler('TCustomDevToolsMessageObserver.OnDevToolsMessage', e) then raise;
end;
end;
procedure TCustomDevToolsMessageObserver.OnDevToolsMethodResult(const browser : ICefBrowser;
message_id : integer;
success : boolean;
const result : ICefValue);
begin
try
if (FEvents <> nil) then
IChromiumEvents(FEvents).doOnDevToolsMethodResult(browser, message_id, success, result);
except
on e : exception do
if CustomExceptionHandler('TCustomDevToolsMessageObserver.OnDevToolsMethodResult', e) then raise;
end;
end;
procedure TCustomDevToolsMessageObserver.OnDevToolsEvent(const browser : ICefBrowser;
const method : ustring;
const params : ICefValue);
begin
try
if (FEvents <> nil) then
IChromiumEvents(FEvents).doOnDevToolsEvent(browser, method, params);
except
on e : exception do
if CustomExceptionHandler('TCustomDevToolsMessageObserver.OnDevToolsEvent', e) then raise;
end;
end;
procedure TCustomDevToolsMessageObserver.OnDevToolsAgentAttached(const browser: ICefBrowser);
begin
try
if (FEvents <> nil) then
IChromiumEvents(FEvents).doOnDevToolsAgentAttached(browser);
except
on e : exception do
if CustomExceptionHandler('TCustomDevToolsMessageObserver.OnDevToolsAgentAttached', e) then raise;
end;
end;
procedure TCustomDevToolsMessageObserver.OnDevToolsAgentDetached(const browser: ICefBrowser);
begin
try
if (FEvents <> nil) then
IChromiumEvents(FEvents).doOnDevToolsAgentDetached(browser);
except
on e : exception do
if CustomExceptionHandler('TCustomDevToolsMessageObserver.OnDevToolsAgentDetached', e) then raise;
end;
end;
end.