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Bug fix #68

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RenderProcessHandler and ResourceBundleHandler are now created automatically in TCEFApplication. All their events are now TCEFApplication events.
This commit is contained in:
Salvador Díaz Fau
2017-11-22 17:43:48 +01:00
parent 47765631e3
commit b54a2861c4
81 changed files with 10092 additions and 421 deletions
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14
demos/JavaScript/JSEval/00-DeleteDCUs.bat Normal file
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del /s /q *.dcu
del /s /q *.exe
del /s /q *.res
del /s /q *.log
del /s /q *.dsk
del /s /q *.identcache
del /s /q *.stat
del /s /q *.local
del /s /q *.~*
rmdir Win32\Debug
rmdir Win32\Release
rmdir Win32
rmdir __history
rmdir __recovery

85
demos/JavaScript/JSEval/JSEval.dpr Normal file
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// ************************************************************************
// ***************************** CEF4Delphi *******************************
// ************************************************************************
//
// CEF4Delphi is based on DCEF3 which uses CEF3 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 � 2017 Salvador D�az 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.
*
*)
program JSEval;
{$I cef.inc}
uses
{$IFDEF DELPHI16_UP}
Vcl.Forms,
WinApi.Windows,
{$ELSE}
Forms,
Windows,
{$ENDIF }
uCEFApplication,
uJSEval in 'uJSEval.pas' {JSEvalFrm},
uSimpleTextViewer in 'uSimpleTextViewer.pas' {SimpleTextViewerFrm};
{$R *.res}
// CEF3 needs to set the LARGEADDRESSAWARE flag which allows 32-bit processes to use up to 3GB of RAM.
{$SetPEFlags IMAGE_FILE_LARGE_ADDRESS_AWARE}
begin
GlobalCEFApp := TCefApplication.Create;
GlobalCEFApp.OnProcessMessageReceived := JSEvalFrm.RenderProcessHandler_OnProcessMessageReceivedEvent;
// In case you want to use custom directories for the CEF3 binaries, cache, cookies and user data.
{
GlobalCEFApp.FrameworkDirPath := 'cef';
GlobalCEFApp.ResourcesDirPath := 'cef';
GlobalCEFApp.LocalesDirPath := 'cef\locales';
GlobalCEFApp.cache := 'cef\cache';
GlobalCEFApp.cookies := 'cef\cookies';
GlobalCEFApp.UserDataPath := 'cef\User Data';
}
if GlobalCEFApp.StartMainProcess then
begin
Application.Initialize;
{$IFDEF DELPHI11_UP}
Application.MainFormOnTaskbar := True;
{$ENDIF}
Application.CreateForm(TJSEvalFrm, JSEvalFrm);
Application.CreateForm(TSimpleTextViewerFrm, SimpleTextViewerFrm);
Application.Run;
end;
GlobalCEFApp.Free;
end.

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demos/JavaScript/JSEval/JSEval.dproj Normal file
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<Platform Name="Linux64">
<Operation>1</Operation>
</Platform>
<Platform Name="OSX32">
<RemoteDir>Contents\MacOS</RemoteDir>
<Operation>1</Operation>
</Platform>
<Platform Name="Win32">
<Operation>0</Operation>
</Platform>
</DeployClass>
<DeployClass Name="ProjectUWPManifest">
<Platform Name="Win32">
<Operation>1</Operation>
</Platform>
<Platform Name="Win64">
<Operation>1</Operation>
</Platform>
</DeployClass>
<DeployClass Name="UWP_DelphiLogo150">
<Platform Name="Win32">
<RemoteDir>Assets</RemoteDir>
<Operation>1</Operation>
</Platform>
<Platform Name="Win64">
<RemoteDir>Assets</RemoteDir>
<Operation>1</Operation>
</Platform>
</DeployClass>
<DeployClass Name="UWP_DelphiLogo44">
<Platform Name="Win32">
<RemoteDir>Assets</RemoteDir>
<Operation>1</Operation>
</Platform>
<Platform Name="Win64">
<RemoteDir>Assets</RemoteDir>
<Operation>1</Operation>
</Platform>
</DeployClass>
<ProjectRoot Platform="iOSDevice64" Name="$(PROJECTNAME).app"/>
<ProjectRoot Platform="Win64" Name="$(PROJECTNAME)"/>
<ProjectRoot Platform="iOSDevice32" Name="$(PROJECTNAME).app"/>
<ProjectRoot Platform="Win32" Name="$(PROJECTNAME)"/>
<ProjectRoot Platform="Linux64" Name="$(PROJECTNAME)"/>
<ProjectRoot Platform="OSX32" Name="$(PROJECTNAME).app"/>
<ProjectRoot Platform="Android" Name="$(PROJECTNAME)"/>
<ProjectRoot Platform="iOSSimulator" Name="$(PROJECTNAME).app"/>
</Deployment>
<Platforms>
<Platform value="Win32">True</Platform>
<Platform value="Win64">False</Platform>
</Platforms>
</BorlandProject>
<ProjectFileVersion>12</ProjectFileVersion>
</ProjectExtensions>
<Import Project="$(BDS)\Bin\CodeGear.Delphi.Targets" Condition="Exists('$(BDS)\Bin\CodeGear.Delphi.Targets')"/>
<Import Project="$(APPDATA)\Embarcadero\$(BDSAPPDATABASEDIR)\$(PRODUCTVERSION)\UserTools.proj" Condition="Exists('$(APPDATA)\Embarcadero\$(BDSAPPDATABASEDIR)\$(PRODUCTVERSION)\UserTools.proj')"/>
<Import Project="$(MSBuildProjectName).deployproj" Condition="Exists('$(MSBuildProjectName).deployproj')"/>
</Project>

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// ************************************************************************
// ***************************** CEF4Delphi *******************************
// ************************************************************************
//
// CEF4Delphi is based on DCEF3 which uses CEF3 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 � 2017 Salvador D�az 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.
*
*)
// The complete list of compiler versions is here :
// http://docwiki.embarcadero.com/RADStudio/Tokyo/en/Compiler_Versions
{$DEFINE DELPHI_VERSION_UNKNOW}
{$IFDEF FPC}
{$DEFINE CEF_MULTI_THREADED_MESSAGE_LOOP}
{$DEFINE SUPPORTS_INLINE}
{$ENDIF}
// Delphi 5
{$IFDEF VER130}
{$UNDEF DELPHI_VERSION_UNKNOW}
{$DEFINE DELPHI5_UP}
{$ENDIF}
// Delphi 6
{$IFDEF VER140}
{$UNDEF DELPHI_VERSION_UNKNOW}
{$DEFINE DELPHI5_UP}
{$DEFINE DELPHI6_UP}
{$ENDIF}
// Delphi 7
{$IFDEF VER150}
{$UNDEF DELPHI_VERSION_UNKNOW}
{$DEFINE DELPHI5_UP}
{$DEFINE DELPHI6_UP}
{$DEFINE DELPHI7_UP}
{$ENDIF}
// Delphi 8
{$IFDEF VER160}
{$UNDEF DELPHI_VERSION_UNKNOW}
{$DEFINE DELPHI5_UP}
{$DEFINE DELPHI6_UP}
{$DEFINE DELPHI7_UP}
{$DEFINE DELPHI8_UP}
{$ENDIF}
// Delphi 2005
{$IFDEF VER170}
{$UNDEF DELPHI_VERSION_UNKNOW}
{$DEFINE DELPHI5_UP}
{$DEFINE DELPHI6_UP}
{$DEFINE DELPHI7_UP}
{$DEFINE DELPHI8_UP}
{$DEFINE DELPHI9_UP}
{$ENDIF}
{$IFDEF VER180}
{$UNDEF DELPHI_VERSION_UNKNOW}
// Delphi 2007
{$IFDEF VER185}
{$DEFINE DELPHI5_UP}
{$DEFINE DELPHI6_UP}
{$DEFINE DELPHI7_UP}
{$DEFINE DELPHI8_UP}
{$DEFINE DELPHI9_UP}
{$DEFINE DELPHI10_UP}
{$DEFINE DELPHI11_UP}
// Delphi 2006
{$ELSE}
{$DEFINE DELPHI5_UP}
{$DEFINE DELPHI6_UP}
{$DEFINE DELPHI7_UP}
{$DEFINE DELPHI8_UP}
{$DEFINE DELPHI9_UP}
{$DEFINE DELPHI10_UP}
{$ENDIF}
{$ENDIF}
// Delphi 2009
{$IFDEF VER200}
{$UNDEF DELPHI_VERSION_UNKNOW}
{$DEFINE DELPHI5_UP}
{$DEFINE DELPHI6_UP}
{$DEFINE DELPHI7_UP}
{$DEFINE DELPHI8_UP}
{$DEFINE DELPHI9_UP}
{$DEFINE DELPHI10_UP}
{$DEFINE DELPHI11_UP}
{$DEFINE DELPHI12_UP}
{$ENDIF}
//Delphi 2010
{$IFDEF VER210}
{$UNDEF DELPHI_VERSION_UNKNOW}
{$DEFINE DELPHI5_UP}
{$DEFINE DELPHI6_UP}
{$DEFINE DELPHI7_UP}
{$DEFINE DELPHI8_UP}
{$DEFINE DELPHI9_UP}
{$DEFINE DELPHI10_UP}
{$DEFINE DELPHI11_UP}
{$DEFINE DELPHI12_UP}
{$DEFINE DELPHI14_UP}
{$ENDIF}
// Delphi XE
{$IFDEF VER220}
{$UNDEF DELPHI_VERSION_UNKNOW}
{$DEFINE DELPHI5_UP}
{$DEFINE DELPHI6_UP}
{$DEFINE DELPHI7_UP}
{$DEFINE DELPHI8_UP}
{$DEFINE DELPHI9_UP}
{$DEFINE DELPHI10_UP}
{$DEFINE DELPHI11_UP}
{$DEFINE DELPHI12_UP}
{$DEFINE DELPHI14_UP}
{$DEFINE DELPHI15_UP}
{$ENDIF}
// Delphi XE2
{$IFDEF VER230}
{$UNDEF DELPHI_VERSION_UNKNOW}
{$DEFINE DELPHI5_UP}
{$DEFINE DELPHI6_UP}
{$DEFINE DELPHI7_UP}
{$DEFINE DELPHI8_UP}
{$DEFINE DELPHI9_UP}
{$DEFINE DELPHI10_UP}
{$DEFINE DELPHI11_UP}
{$DEFINE DELPHI12_UP}
{$DEFINE DELPHI14_UP}
{$DEFINE DELPHI15_UP}
{$DEFINE DELPHI16_UP}
{$ENDIF}
// Delphi XE3
{$IFDEF VER240}
{$UNDEF DELPHI_VERSION_UNKNOW}
{$DEFINE DELPHI5_UP}
{$DEFINE DELPHI6_UP}
{$DEFINE DELPHI7_UP}
{$DEFINE DELPHI8_UP}
{$DEFINE DELPHI9_UP}
{$DEFINE DELPHI10_UP}
{$DEFINE DELPHI11_UP}
{$DEFINE DELPHI12_UP}
{$DEFINE DELPHI14_UP}
{$DEFINE DELPHI15_UP}
{$DEFINE DELPHI16_UP}
{$DEFINE DELPHI17_UP}
{$ENDIF}
// Delphi XE4
{$IFDEF VER250}
{$UNDEF DELPHI_VERSION_UNKNOW}
{$DEFINE DELPHI5_UP}
{$DEFINE DELPHI6_UP}
{$DEFINE DELPHI7_UP}
{$DEFINE DELPHI8_UP}
{$DEFINE DELPHI9_UP}
{$DEFINE DELPHI10_UP}
{$DEFINE DELPHI11_UP}
{$DEFINE DELPHI12_UP}
{$DEFINE DELPHI14_UP}
{$DEFINE DELPHI15_UP}
{$DEFINE DELPHI16_UP}
{$DEFINE DELPHI17_UP}
{$DEFINE DELPHI18_UP}
{$ENDIF}
// Delphi XE5
{$IFDEF VER260}
{$UNDEF DELPHI_VERSION_UNKNOW}
{$DEFINE DELPHI5_UP}
{$DEFINE DELPHI6_UP}
{$DEFINE DELPHI7_UP}
{$DEFINE DELPHI8_UP}
{$DEFINE DELPHI9_UP}
{$DEFINE DELPHI10_UP}
{$DEFINE DELPHI11_UP}
{$DEFINE DELPHI12_UP}
{$DEFINE DELPHI14_UP}
{$DEFINE DELPHI15_UP}
{$DEFINE DELPHI16_UP}
{$DEFINE DELPHI17_UP}
{$DEFINE DELPHI18_UP}
{$DEFINE DELPHI19_UP}
{$ENDIF}
// Delphi XE6
{$IFDEF VER270}
{$UNDEF DELPHI_VERSION_UNKNOW}
{$DEFINE DELPHI5_UP}
{$DEFINE DELPHI6_UP}
{$DEFINE DELPHI7_UP}
{$DEFINE DELPHI8_UP}
{$DEFINE DELPHI9_UP}
{$DEFINE DELPHI10_UP}
{$DEFINE DELPHI11_UP}
{$DEFINE DELPHI12_UP}
{$DEFINE DELPHI14_UP}
{$DEFINE DELPHI15_UP}
{$DEFINE DELPHI16_UP}
{$DEFINE DELPHI17_UP}
{$DEFINE DELPHI18_UP}
{$DEFINE DELPHI19_UP}
{$DEFINE DELPHI20_UP}
{$ENDIF}
// Delphi XE7
{$IFDEF VER280}
{$UNDEF DELPHI_VERSION_UNKNOW}
{$DEFINE DELPHI5_UP}
{$DEFINE DELPHI6_UP}
{$DEFINE DELPHI7_UP}
{$DEFINE DELPHI8_UP}
{$DEFINE DELPHI9_UP}
{$DEFINE DELPHI10_UP}
{$DEFINE DELPHI11_UP}
{$DEFINE DELPHI12_UP}
{$DEFINE DELPHI14_UP}
{$DEFINE DELPHI15_UP}
{$DEFINE DELPHI16_UP}
{$DEFINE DELPHI17_UP}
{$DEFINE DELPHI18_UP}
{$DEFINE DELPHI19_UP}
{$DEFINE DELPHI20_UP}
{$DEFINE DELPHI21_UP}
{$ENDIF}
// Delphi XE8
{$IFDEF VER290}
{$UNDEF DELPHI_VERSION_UNKNOW}
{$DEFINE DELPHI5_UP}
{$DEFINE DELPHI6_UP}
{$DEFINE DELPHI7_UP}
{$DEFINE DELPHI8_UP}
{$DEFINE DELPHI9_UP}
{$DEFINE DELPHI10_UP}
{$DEFINE DELPHI11_UP}
{$DEFINE DELPHI12_UP}
{$DEFINE DELPHI14_UP}
{$DEFINE DELPHI15_UP}
{$DEFINE DELPHI16_UP}
{$DEFINE DELPHI17_UP}
{$DEFINE DELPHI18_UP}
{$DEFINE DELPHI19_UP}
{$DEFINE DELPHI20_UP}
{$DEFINE DELPHI21_UP}
{$DEFINE DELPHI22_UP}
{$ENDIF VER290}
// Rad Studio 10 - Delphi Seattle
{$IFDEF VER300}
{$UNDEF DELPHI_VERSION_UNKNOW}
{$DEFINE DELPHI5_UP}
{$DEFINE DELPHI6_UP}
{$DEFINE DELPHI7_UP}
{$DEFINE DELPHI8_UP}
{$DEFINE DELPHI9_UP}
{$DEFINE DELPHI10_UP}
{$DEFINE DELPHI11_UP}
{$DEFINE DELPHI12_UP}
{$DEFINE DELPHI14_UP}
{$DEFINE DELPHI15_UP}
{$DEFINE DELPHI16_UP}
{$DEFINE DELPHI17_UP}
{$DEFINE DELPHI18_UP}
{$DEFINE DELPHI19_UP}
{$DEFINE DELPHI20_UP}
{$DEFINE DELPHI21_UP}
{$DEFINE DELPHI22_UP}
{$DEFINE DELPHI23_UP}
{$ENDIF}
// Rad Studio 10.1 - Delphi Berlin
{$IFDEF VER310}
{$UNDEF DELPHI_VERSION_UNKNOW}
{$DEFINE DELPHI5_UP}
{$DEFINE DELPHI6_UP}
{$DEFINE DELPHI7_UP}
{$DEFINE DELPHI8_UP}
{$DEFINE DELPHI9_UP}
{$DEFINE DELPHI10_UP}
{$DEFINE DELPHI11_UP}
{$DEFINE DELPHI12_UP}
{$DEFINE DELPHI14_UP}
{$DEFINE DELPHI15_UP}
{$DEFINE DELPHI16_UP}
{$DEFINE DELPHI17_UP}
{$DEFINE DELPHI18_UP}
{$DEFINE DELPHI19_UP}
{$DEFINE DELPHI20_UP}
{$DEFINE DELPHI21_UP}
{$DEFINE DELPHI22_UP}
{$DEFINE DELPHI23_UP}
{$DEFINE DELPHI24_UP}
{$ENDIF}
// Rad Studio 10.2 - Delphi Tokyo
{$IFDEF VER320}
{$UNDEF DELPHI_VERSION_UNKNOW}
{$DEFINE DELPHI5_UP}
{$DEFINE DELPHI6_UP}
{$DEFINE DELPHI7_UP}
{$DEFINE DELPHI8_UP}
{$DEFINE DELPHI9_UP}
{$DEFINE DELPHI10_UP}
{$DEFINE DELPHI11_UP}
{$DEFINE DELPHI12_UP}
{$DEFINE DELPHI14_UP}
{$DEFINE DELPHI15_UP}
{$DEFINE DELPHI16_UP}
{$DEFINE DELPHI17_UP}
{$DEFINE DELPHI18_UP}
{$DEFINE DELPHI19_UP}
{$DEFINE DELPHI20_UP}
{$DEFINE DELPHI21_UP}
{$DEFINE DELPHI22_UP}
{$DEFINE DELPHI23_UP}
{$DEFINE DELPHI24_UP}
{$DEFINE DELPHI25_UP}
{$ENDIF}
{$IFDEF DELPHI_VERSION_UNKNOW}
{$DEFINE DELPHI5_UP}
{$DEFINE DELPHI6_UP}
{$DEFINE DELPHI7_UP}
{$DEFINE DELPHI8_UP}
{$DEFINE DELPHI9_UP}
{$DEFINE DELPHI10_UP}
{$DEFINE DELPHI11_UP}
{$DEFINE DELPHI12_UP}
{$DEFINE DELPHI14_UP}
{$DEFINE DELPHI15_UP}
{$DEFINE DELPHI16_UP}
{$DEFINE DELPHI17_UP}
{$DEFINE DELPHI18_UP}
{$DEFINE DELPHI19_UP}
{$DEFINE DELPHI20_UP}
{$DEFINE DELPHI21_UP}
{$DEFINE DELPHI22_UP}
{$DEFINE DELPHI23_UP}
{$DEFINE DELPHI24_UP}
{$DEFINE DELPHI25_UP}
{$ENDIF}
{$IFDEF DELPHI9_UP}
{$DEFINE SUPPORTS_INLINE}
{$ENDIF}

79
demos/JavaScript/JSEval/uJSEval.dfm Normal file
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object JSEvalFrm: TJSEvalFrm
Left = 0
Top = 0
Caption = 'JSEval'
ClientHeight = 571
ClientWidth = 878
Color = clBtnFace
Font.Charset = DEFAULT_CHARSET
Font.Color = clWindowText
Font.Height = -11
Font.Name = 'Tahoma'
Font.Style = []
OldCreateOrder = False
Position = poScreenCenter
OnShow = FormShow
PixelsPerInch = 96
TextHeight = 13
object CEFWindowParent1: TCEFWindowParent
Left = 0
Top = 30
Width = 878
Height = 541
Align = alClient
TabOrder = 0
end
object AddressBarPnl: TPanel
Left = 0
Top = 0
Width = 878
Height = 30
Align = alTop
BevelOuter = bvNone
DoubleBuffered = True
Enabled = False
Padding.Left = 5
Padding.Top = 5
Padding.Right = 5
Padding.Bottom = 5
ParentDoubleBuffered = False
ShowCaption = False
TabOrder = 1
object GoBtn: TButton
Left = 842
Top = 5
Width = 31
Height = 20
Margins.Left = 5
Align = alRight
Caption = 'Go'
TabOrder = 0
OnClick = GoBtnClick
end
object AddressEdt: TEdit
Left = 5
Top = 5
Width = 837
Height = 20
Align = alClient
TabOrder = 1
Text = 'https://www.google.com'
ExplicitHeight = 21
end
end
object Chromium1: TChromium
OnProcessMessageReceived = Chromium1ProcessMessageReceived
OnBeforeContextMenu = Chromium1BeforeContextMenu
OnContextMenuCommand = Chromium1ContextMenuCommand
OnAfterCreated = Chromium1AfterCreated
Left = 16
Top = 40
end
object Timer1: TTimer
Enabled = False
Interval = 300
OnTimer = Timer1Timer
Left = 16
Top = 96
end
end

452
demos/JavaScript/JSEval/uJSEval.pas Normal file
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@ -0,0 +1,452 @@
// ************************************************************************
// ***************************** CEF4Delphi *******************************
// ************************************************************************
//
// CEF4Delphi is based on DCEF3 which uses CEF3 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 � 2017 Salvador D�az 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 uJSEval;
{$I cef.inc}
interface
uses
{$IFDEF DELPHI16_UP}
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics, Vcl.Menus,
Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Vcl.ExtCtrls, System.Types, Vcl.ComCtrls, Vcl.ClipBrd,
System.UITypes, Soap.EncdDecd,
{$ELSE}
Windows, Messages, SysUtils, Variants, Classes, Graphics, Menus,
Controls, Forms, Dialogs, StdCtrls, ExtCtrls, Types, ComCtrls, ClipBrd, EncdDecd,
{$ENDIF}
uCEFChromium, uCEFWindowParent, uCEFInterfaces, uCEFApplication, uCEFTypes, uCEFConstants;
const
MINIBROWSER_SHOWTEXTVIEWER = WM_APP + $101;
MINIBROWSER_EVALJSCODE = WM_APP + $102;
MINIBROWSER_JSBINPARAM = WM_APP + $103;
MINIBROWSER_CONTEXTMENU_EVALJSCODE = MENU_ID_USER_FIRST + 1;
MINIBROWSER_CONTEXTMENU_JSBINPARAM = MENU_ID_USER_FIRST + 2;
EVAL_JS = 'JSContextEvalDemo';
BINARY_PARAM_JS = 'JSBinaryParameter';
type
TJSEvalFrm = class(TForm)
CEFWindowParent1: TCEFWindowParent;
Chromium1: TChromium;
AddressBarPnl: TPanel;
GoBtn: TButton;
AddressEdt: TEdit;
Timer1: TTimer;
procedure Chromium1AfterCreated(Sender: TObject; const browser: ICefBrowser);
procedure GoBtnClick(Sender: TObject);
procedure FormShow(Sender: TObject);
procedure Chromium1ProcessMessageReceived(Sender: TObject;
const browser: ICefBrowser; sourceProcess: TCefProcessId;
const message: ICefProcessMessage; out Result: Boolean);
procedure Chromium1BeforeContextMenu(Sender: TObject;
const browser: ICefBrowser; const frame: ICefFrame;
const params: ICefContextMenuParams; const model: ICefMenuModel);
procedure Chromium1ContextMenuCommand(Sender: TObject;
const browser: ICefBrowser; const frame: ICefFrame;
const params: ICefContextMenuParams; commandId: Integer;
eventFlags: Cardinal; out Result: Boolean);
procedure Timer1Timer(Sender: TObject);
private
{ Private declarations }
protected
FText : string;
procedure BrowserCreatedMsg(var aMessage : TMessage); message CEF_AFTERCREATED;
procedure ShowTextViewerMsg(var aMessage : TMessage); message MINIBROWSER_SHOWTEXTVIEWER;
procedure EvalJSCodeMsg(var aMessage : TMessage); message MINIBROWSER_EVALJSCODE;
procedure EvalJSBinParamMsg(var aMessage : TMessage); message MINIBROWSER_JSBINPARAM;
procedure WMMove(var aMessage : TWMMove); message WM_MOVE;
procedure WMMoving(var aMessage : TMessage); message WM_MOVING;
procedure ParseEvalJsAnswer(const pMessage: ICefProcessMessage; pBrowser: ICefBrowser; pReturnValue : ICefv8Value; pException : ICefV8Exception);
procedure ParseBinaryValue(const pBrowser : ICefBrowser; const aBinaryValue : ICefBinaryValue);
public
procedure RenderProcessHandler_OnProcessMessageReceivedEvent(const pBrowser: ICefBrowser; uSourceProcess: TCefProcessId; const pMessage: ICefProcessMessage; var aHandled : boolean);
end;
var
JSEvalFrm: TJSEvalFrm;
implementation
{$R *.dfm}
uses
uSimpleTextViewer, uCefProcessMessage, uCefBinaryValue, uCefMiscFunctions;
// 99.9% of the code in this demo was created by xpert13 and shared in the CEF4Delphi forum.
// Steps to evaluate some JavaScript code using the V8Context
// ----------------------------------------------------------
// 1. Create a TCefCustomRenderProcessHandler in the DPR file, add a message name and set the OnCustomMessage event.
// 2. Set the TCefCustomRenderProcessHandler in the GlobalCEFApp.RenderProcessHandler property.
// 3. To get the Javascript code in this demo we use a context menu that sends a MINIBROWSER_EVALJSCODE to the form.
// 4. The EvalJSCodeMsg asks for the Javascript code and sends it to the renderer using a process message.
// 5. RenderProcessHandler_OnProcessMessageReceivedEvent receives the process message and calls ParseEvalJsAnswer
// to evaluate the code.
// 6. ParseEvalJsAnswer evaluates the code and sends a message with the results to the browser process using a
// process message.
// 7. Chromium1ProcessMessageReceived receives the message, stores the results and sends a
// MINIBROWSER_SHOWTEXTVIEWER message to the form.
// 8. ShowTextViewerMsg shows the results safely using a SimpleTextViewer.
// This demo also has an example of binary parameters in process messages
// ----------------------------------------------------------------------
// 1. Create a TCefCustomRenderProcessHandler in the DPR file, add a message name and set the OnCustomMessage event.
// 2. Set the TCefCustomRenderProcessHandler in the GlobalCEFApp.RenderProcessHandler property.
// 3. The context menu has a 'Send JPEG image' option that sends a MINIBROWSER_JSBINPARAM message to the form.
// 4. EvalJSBinParamMsg asks for a JPEG image and sends a process message with a ICefBinaryValue parameter to the
// renderer process.
// 5. The renderer process parses the binary parameter in the ParseBinaryValue function and sends back the image
// size and encoded image data to the browser process.
// 6. Chromium1ProcessMessageReceived receives the message, stores the results and sends a
// MINIBROWSER_SHOWTEXTVIEWER message to the form.
// 7. ShowTextViewerMsg shows the results safely using a SimpleTextViewer.
// About binary parameters
// -----------------------
// There is a size limit in the binary parameters of only a few kilobytes.
// For more info and alternatives read this thread in the official CEF3 forum :
// http://www.magpcss.org/ceforum/viewtopic.php?f=6&t=10590
//
// Compress the binary data if necessary!
procedure TJSEvalFrm.Chromium1AfterCreated(Sender: TObject; const browser: ICefBrowser);
begin
PostMessage(Handle, CEF_AFTERCREATED, 0, 0);
end;
procedure TJSEvalFrm.Chromium1BeforeContextMenu(Sender : TObject;
const browser : ICefBrowser;
const frame : ICefFrame;
const params : ICefContextMenuParams;
const model : ICefMenuModel);
begin
model.AddItem(MINIBROWSER_CONTEXTMENU_EVALJSCODE, 'Evaluate JavaScript code...');
model.AddItem(MINIBROWSER_CONTEXTMENU_JSBINPARAM, 'Send JPEG image...');
end;
procedure TJSEvalFrm.Chromium1ContextMenuCommand(Sender : TObject;
const browser : ICefBrowser;
const frame : ICefFrame;
const params : ICefContextMenuParams;
commandId : Integer;
eventFlags : Cardinal;
out Result : Boolean);
begin
Result := False;
case commandId of
MINIBROWSER_CONTEXTMENU_EVALJSCODE : PostMessage(Handle, MINIBROWSER_EVALJSCODE, 0, 0);
MINIBROWSER_CONTEXTMENU_JSBINPARAM : PostMessage(Handle, MINIBROWSER_JSBINPARAM, 0, 0);
end;
end;
procedure TJSEvalFrm.FormShow(Sender: TObject);
begin
// GlobalCEFApp.GlobalContextInitialized has to be TRUE before creating any browser
// If it's not initialized yet, we use a simple timer to create the browser later.
if not(Chromium1.CreateBrowser(CEFWindowParent1, '')) then Timer1.Enabled := True;
end;
procedure TJSEvalFrm.GoBtnClick(Sender: TObject);
begin
Chromium1.LoadURL(AddressEdt.Text);
end;
procedure TJSEvalFrm.BrowserCreatedMsg(var aMessage : TMessage);
begin
CEFWindowParent1.UpdateSize;
AddressBarPnl.Enabled := True;
GoBtn.Click;
end;
procedure TJSEvalFrm.ShowTextViewerMsg(var aMessage : TMessage);
begin
SimpleTextViewerFrm.Memo1.Lines.Text := FText;
SimpleTextViewerFrm.ShowModal;
end;
procedure TJSEvalFrm.Timer1Timer(Sender: TObject);
begin
Timer1.Enabled := False;
if not(Chromium1.CreateBrowser(CEFWindowParent1, '')) and not(Chromium1.Initialized) then
Timer1.Enabled := True;
end;
procedure TJSEvalFrm.WMMove(var aMessage : TWMMove);
begin
inherited;
if (Chromium1 <> nil) then Chromium1.NotifyMoveOrResizeStarted;
end;
procedure TJSEvalFrm.WMMoving(var aMessage : TMessage);
begin
inherited;
if (Chromium1 <> nil) then Chromium1.NotifyMoveOrResizeStarted;
end;
procedure TJSEvalFrm.EvalJSCodeMsg(var aMessage : TMessage);
var
TempMsg : ICefProcessMessage;
TempScript : string;
begin
TempScript := InputBox('JSEval demo', 'Please type some JavaScript code', 'document.title;');
if (length(TempScript) > 0) then
begin
TempMsg := TCefProcessMessageRef.New(EVAL_JS);
if TempMsg.ArgumentList.SetString(0, TempScript) then
Chromium1.SendProcessMessage(PID_RENDERER, TempMsg);
end;
end;
procedure TJSEvalFrm.EvalJSBinParamMsg(var aMessage : TMessage);
var
TempMsg : ICefProcessMessage;
TempOpenDialog : TOpenDialog;
TempStream : TFileStream;
TempBinValue : ICefBinaryValue;
TempBuffer : TBytes;
TempSize : NativeUInt;
TempPointer : pointer;
begin
TempOpenDialog := nil;
TempStream := nil;
try
try
TempOpenDialog := TOpenDialog.Create(nil);
TempOpenDialog.Filter := 'JPEG files (*.jpg)|*.JPG';
if TempOpenDialog.Execute then
begin
TempStream := TFileStream.Create(TempOpenDialog.FileName, fmOpenRead);
TempSize := TempStream.Size;
if (TempSize > 0) then
begin
SetLength(TempBuffer, TempSize);
TempSize := TempStream.Read(TempBuffer, TempSize);
if (TempSize > 0) then
begin
TempPointer := @TempBuffer[0];
TempBinValue := TCefBinaryValueRef.New(TempPointer, TempSize);
TempMsg := TCefProcessMessageRef.New(BINARY_PARAM_JS);
if TempMsg.ArgumentList.SetBinary(0, TempBinValue) then
Chromium1.SendProcessMessage(PID_RENDERER, TempMsg);
end;
end;
end;
except
on e : exception do
if CustomExceptionHandler('TJSEvalFrm.EvalJSBinParamMsg', e) then raise;
end;
finally
if (TempOpenDialog <> nil) then FreeAndNil(TempOpenDialog);
if (TempStream <> nil) then FreeAndNil(TempStream);
SetLength(TempBuffer, 0);
end;
end;
procedure TJSEvalFrm.RenderProcessHandler_OnProcessMessageReceivedEvent(const pBrowser : ICefBrowser;
uSourceProcess : TCefProcessId;
const pMessage : ICefProcessMessage;
var aHandled : boolean);
var
pV8Context : ICefv8Context;
pReturnValue : ICefv8Value;
pException : ICefV8Exception;
TempScript : string;
TempBinValue : ICefBinaryValue;
begin
aHandled := False;
if (pMessage = nil) or (pMessage.ArgumentList = nil) then exit;
if (pMessage.Name = EVAL_JS) then
begin
TempScript := pMessage.ArgumentList.GetString(0);
if (length(TempScript) > 0) then
begin
pV8Context := pBrowser.MainFrame.GetV8Context;
if pV8Context.Enter then
begin
pV8Context.Eval(TempScript, '', 1, pReturnValue, pException);
ParseEvalJsAnswer(pMessage, pBrowser, pReturnValue, pException);
pV8Context.Exit;
end;
end;
aHandled := True;
end
else
if (pMessage.Name = BINARY_PARAM_JS) then
begin
TempBinValue := pMessage.ArgumentList.GetBinary(0);
ParseBinaryValue(pBrowser, TempBinValue);
aHandled := True;
end;
end;
procedure TJSEvalFrm.ParseEvalJsAnswer(const pMessage : ICefProcessMessage;
pBrowser : ICefBrowser;
pReturnValue : ICefv8Value;
pException : ICefV8Exception);
var
pAnswer : ICefProcessMessage;
strResult : String;
bGoodDataType : Boolean;
begin
pAnswer := TCefProcessMessageRef.New(EVAL_JS);
if (pReturnValue = nil) or not(pReturnValue.IsValid) then
begin
pAnswer.ArgumentList.SetBool(0, false);
pAnswer.ArgumentList.SetString(1, pException.Message);
end
else
begin
bGoodDataType := True;
if pReturnValue.IsString then strResult := pReturnValue.GetStringValue
else if pReturnValue.IsBool then strResult := BoolToStr(pReturnValue.GetBoolValue)
else if pReturnValue.IsInt then strResult := IntToStr(pReturnValue.GetIntValue)
else if pReturnValue.IsUInt then strResult := IntToStr(pReturnValue.GetUIntValue)
else if pReturnValue.IsDouble then strResult := FloatToStr(pReturnValue.GetDoubleValue)
else bGoodDataType := False;
if bGoodDataType then
begin
pAnswer.ArgumentList.SetBool(0, true);
pAnswer.ArgumentList.SetString(1, strResult);
end
else
begin
pAnswer.ArgumentList.SetBool(0, false);
pAnswer.ArgumentList.SetString(1, 'Result data type need to be string, int, uint or double!');
end;
end;
pBrowser.SendProcessMessage(PID_BROWSER, pAnswer);
end;
procedure TJSEvalFrm.ParseBinaryValue(const pBrowser : ICefBrowser; const aBinaryValue : ICefBinaryValue);
var
pAnswer : ICefProcessMessage;
TempBuffer : TBytes;
TempPointer : pointer;
TempSize : NativeUInt;
TempString : string;
begin
if (aBinaryValue = nil) then exit;
try
try
TempSize := aBinaryValue.GetSize;
if (TempSize > 0) then
begin
SetLength(TempBuffer, TempSize);
TempPointer := @TempBuffer[0];
TempSize := aBinaryValue.GetData(TempPointer, TempSize, 0);
if (TempSize > 0) then
begin
pAnswer := TCefProcessMessageRef.New(BINARY_PARAM_JS);
TempString := 'Image size : ' + inttostr(TempSize) + #13 + #10 +
'Encoded image : ' + EncodeBase64(TempPointer, TempSize);
if pAnswer.ArgumentList.SetString(0, TempString) then
pBrowser.SendProcessMessage(PID_BROWSER, pAnswer);
end;
end;
except
on e : exception do
if CustomExceptionHandler('TJSEvalFrm.ParseBinaryValue', e) then raise;
end;
finally
SetLength(TempBuffer, 0);
end;
end;
procedure TJSEvalFrm.Chromium1ProcessMessageReceived(Sender : TObject;
const browser : ICefBrowser;
sourceProcess : TCefProcessId;
const message : ICefProcessMessage;
out Result : Boolean);
begin
Result := False;
if (message = nil) or (message.ArgumentList = nil) then exit;
if (message.Name = EVAL_JS) then
begin
FText := message.ArgumentList.GetString(1);
PostMessage(Handle, MINIBROWSER_SHOWTEXTVIEWER, 0, 0);
Result := True;
end
else
if (message.Name = BINARY_PARAM_JS) then
begin
FText := message.ArgumentList.GetString(0);
PostMessage(Handle, MINIBROWSER_SHOWTEXTVIEWER, 0, 0);
Result := True;
end;
end;
end.

29
demos/JavaScript/JSEval/uSimpleTextViewer.dfm Normal file
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@ -0,0 +1,29 @@
object SimpleTextViewerFrm: TSimpleTextViewerFrm
Left = 0
Top = 0
BorderIcons = [biSystemMenu]
BorderStyle = bsSingle
Caption = 'Simple text viewer'
ClientHeight = 572
ClientWidth = 694
Color = clBtnFace
Font.Charset = DEFAULT_CHARSET
Font.Color = clWindowText
Font.Height = -11
Font.Name = 'Tahoma'
Font.Style = []
OldCreateOrder = False
Position = poScreenCenter
PixelsPerInch = 96
TextHeight = 13
object Memo1: TMemo
Left = 0
Top = 0
Width = 694
Height = 572
Align = alClient
ReadOnly = True
ScrollBars = ssBoth
TabOrder = 0
end
end

31
demos/JavaScript/JSEval/uSimpleTextViewer.pas Normal file
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unit uSimpleTextViewer;
interface
uses
{$IFDEF DELPHI16_UP}
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls;
{$ELSE}
Windows, Messages, SysUtils, Variants, Classes, Graphics,
Controls, Forms, Dialogs, StdCtrls;
{$ENDIF}
type
TSimpleTextViewerFrm = class(TForm)
Memo1: TMemo;
private
{ Private declarations }
public
{ Public declarations }
end;
var
SimpleTextViewerFrm: TSimpleTextViewerFrm;
implementation
{$R *.dfm}
end.