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cefvcl.pas_
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(*
* Delphi Chromium Embedded
*
* 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.
*
* Embarcadero Technologies, Inc is not permitted to use or redistribute
* this source code without explicit permission.
*
* 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
*)
unit cefvcl;
{$I cef.inc}
interface
uses
Windows, Messages, Classes,
cefgui, ceflib,
{$ifdef DELPHI16_UP}
Vcl.Controls, Vcl.Graphics
{$else}
Controls, Graphics
{$endif};
procedure CefFinalization;
type
TCustomChromium = class(TWinControl, IChromiumEvents)
private
FHandler: ICefBase;
FBrowser: ICefBrowser;
FBrowserHandle: HWND;
FDefaultUrl: ustring;
FOnBeforePopup: TOnBeforePopup;
FOnAfterCreated: TOnAfterCreated;
FOnBeforeClose: TOnBeforeClose;
FOnClose: TOnClose;
FOnRunModal: TOnRunModal;
FOnLoadStart: TOnLoadStart;
FOnLoadEnd: TOnLoadEnd;
FOnLoadError: TOnLoadError;
FOnAuthCredentials: TOnAuthCredentials;
FOnGetDownloadHandler: TOnGetDownloadHandler;
FOnBeforeBrowse: TOnBeforeBrowse;
FOnBeforeResourceLoad: TOnBeforeResourceLoad;
FOnProtocolExecution: TOnProtocolExecution;
FOnResourceResponse: TOnResourceResponse;
FOnAddressChange: TOnAddressChange;
FOnContentsSizeChange: TOnContentsSizeChange;
FOnConsoleMessage: TOnConsoleMessage;
FOnNavStateChange: TOnNavStateChange;
FOnStatusMessage: TOnStatusMessage;
FOnTitleChange: TOnTitleChange;
FOnTooltip: TOnTooltip;
FOnTakeFocus: TOnTakeFocus;
FOnSetFocus: TOnSetFocus;
FOnFocusedNodeChanged: TOnFocusedNodeChanged;
FOnKeyEvent: TOnKeyEvent;
FOnBeforeMenu: TOnBeforeMenu;
FOnGetMenuLabel: TOnGetMenuLabel;
FOnMenuAction: TOnMenuAction;
FOnPrintHeaderFooter: TOnPrintHeaderFooter;
FOnPrintOptions: TOnPrintOptions;
FOnFindResult: TOnFindResult;
FOnJsAlert: TOnJsAlert;
FOnJsConfirm: TOnJsConfirm;
FOnJsPrompt: TOnJsPrompt;
FOnJsBinding: TOnJsBinding;
FOnDragStart: TOnDragEvent;
FOnDragEnter: TOnDragEvent;
FOnChromiumLibLoad: TNotifyEvent;
FOptions: TChromiumOptions;
FUserStyleSheetLocation: ustring;
FDefaultEncoding: ustring;
FFontOptions: TChromiumFontOptions;
procedure GetSettings(var settings: TCefBrowserSettings);
procedure CreateBrowser;
protected
procedure WndProc(var Message: TMessage); override;
procedure CreateWindowHandle(const Params: TCreateParams); override;
procedure Loaded; override;
procedure Resize; override;
function doOnBeforePopup(const parentBrowser: ICefBrowser;
var popupFeatures: TCefPopupFeatures; var windowInfo: TCefWindowInfo;
var url: ustring; var client: ICefBase): Boolean; virtual;
procedure doOnAfterCreated(const browser: ICefBrowser); virtual;
function doOnBeforeClose(const browser: ICefBrowser): Boolean; virtual;
function doOnClose(const browser: ICefBrowser): Boolean; virtual;
function doOnRunModal(const browser: ICefBrowser): Boolean; virtual;
procedure doOnLoadStart(const browser: ICefBrowser; const frame: ICefFrame); virtual;
function doOnLoadEnd(const browser: ICefBrowser; const frame: ICefFrame; httpStatusCode: Integer): Boolean; virtual;
function doOnLoadError(const browser: ICefBrowser;
const frame: ICefFrame; errorCode: TCefHandlerErrorcode;
const failedUrl: ustring; var errorText: ustring): Boolean; virtual;
function doOnAuthCredentials(const browser: ICefBrowser; isProxy: Boolean; Port: Integer;
const host, realm, scheme: ustring; var username, password: ustring): Boolean; virtual;
function doOnGetDownloadHandler(const browser: ICefBrowser; const mimeType, fileName: ustring;
contentLength: int64; var handler: ICefDownloadHandler): Boolean; virtual;
function doOnBeforeBrowse(const browser: ICefBrowser; const frame: ICefFrame;
const request: ICefRequest; navType: TCefHandlerNavtype;
isRedirect: boolean): Boolean; virtual;
function doOnBeforeResourceLoad(const browser: ICefBrowser;
const request: ICefRequest; var redirectUrl: ustring;
var resourceStream: ICefStreamReader; const response: ICefResponse;
loadFlags: Integer): Boolean; virtual;
function doOnProtocolExecution(const browser: ICefBrowser;
const url: ustring; var AllowOsExecution: Boolean): Boolean; virtual;
procedure doOnResourceResponse(const browser: ICefBrowser;
const url: ustring; const response: ICefResponse; var filter: ICefBase); virtual;
procedure doOnAddressChange(const browser: ICefBrowser;
const frame: ICefFrame; const url: ustring); virtual;
procedure doOnContentsSizeChange(const browser: ICefBrowser;
const frame: ICefFrame; width, height: Integer); virtual;
function doOnConsoleMessage(const browser: ICefBrowser; const message,
source: ustring; line: Integer): Boolean; virtual;
function doOnNavStateChange(const browser: ICefBrowser; canGoBack,
canGoForward: Boolean): Boolean; virtual;
function doOnStatusMessage(const browser: ICefBrowser; const value: ustring;
StatusType: TCefHandlerStatusType): Boolean; virtual;
function doOnTitleChange(const browser: ICefBrowser;
const title: ustring): Boolean; virtual;
function doOnTooltip(const browser: ICefBrowser; var text: ustring): Boolean; virtual;
procedure doOnTakeFocus(const browser: ICefBrowser; next: Boolean); virtual;
function doOnSetFocus(const browser: ICefBrowser; source: TCefHandlerFocusSource): Boolean; virtual;
procedure doOnFocusedNodeChanged(const browser: ICefBrowser; const frame: ICefFrame; const node: ICefDomNode);
function doOnKeyEvent(const browser: ICefBrowser; event: TCefHandlerKeyEventType;
code, modifiers: Integer; isSystemKey, isAfterJavaScript: Boolean): Boolean; virtual;
function doOnBeforeMenu(const browser: ICefBrowser;
const menuInfo: PCefHandlerMenuInfo): Boolean; virtual;
function doOnGetMenuLabel(const browser: ICefBrowser;
menuId: TCefHandlerMenuId; var caption: ustring): Boolean; virtual;
function doOnMenuAction(const browser: ICefBrowser;
menuId: TCefHandlerMenuId): Boolean; virtual;
function doOnPrintHeaderFooter(const browser: ICefBrowser;
const frame: ICefFrame; printInfo: PCefPrintInfo;
const url, title: ustring; currentPage, maxPages: Integer;
var topLeft, topCenter, topRight, bottomLeft, bottomCenter,
bottomRight: ustring): Boolean; virtual;
function doOnPrintOptions(const browser: ICefBrowser;
printOptions: PCefPrintOptions): Boolean; virtual;
function doOnJsAlert(const browser: ICefBrowser; const frame: ICefFrame;
const message: ustring): Boolean; virtual;
function doOnJsConfirm(const browser: ICefBrowser; const frame: ICefFrame;
const message: ustring; var retval: Boolean): Boolean; virtual;
function doOnJsPrompt(const browser: ICefBrowser; const frame: ICefFrame;
const message, defaultValue: ustring; var retval: Boolean;
var return: ustring): Boolean; virtual;
function doOnJsBinding(const browser: ICefBrowser;
const frame: ICefFrame; const obj: ICefv8Value): Boolean; virtual;
function doOnFindResult(const browser: ICefBrowser; count: Integer;
selectionRect: PCefRect; identifier, activeMatchOrdinal,
finalUpdate: Boolean): Boolean; virtual;
function doOnGetViewRect(const browser: ICefBrowser; rect: PCefRect): Boolean;
function doOnGetScreenRect(const browser: ICefBrowser; rect: PCefRect): Boolean;
function doOnGetScreenPoint(const browser: ICefBrowser; viewX, viewY: Integer;
screenX, screenY: PInteger): Boolean;
procedure doOnPopupShow(const browser: ICefBrowser; show: Boolean);
procedure doOnPopupSize(const browser: ICefBrowser; const rect: PCefRect);
procedure doOnPaint(const browser: ICefBrowser; kind: TCefPaintElementType;
const dirtyRect: PCefRect; const buffer: Pointer);
procedure doOnCursorChange(const browser: ICefBrowser; cursor: TCefCursorHandle);
function doOnDragStart(const browser: ICefBrowser;
const dragData: ICefDragData; mask: Integer): Boolean;
function doOnDragEnter(const browser: ICefBrowser;
const dragData: ICefDragData; mask: Integer): Boolean;
property DefaultUrl: ustring read FDefaultUrl write FDefaultUrl;
property OnBeforePopup: TOnBeforePopup read FOnBeforePopup write FOnBeforePopup;
property OnAfterCreated: TOnAfterCreated read FOnAfterCreated write FOnAfterCreated;
property OnBeforeClose: TOnBeforeClose read FOnBeforeClose write FOnBeforeClose;
property OnClose: TOnClose read FOnClose write FOnClose;
property OnRunModal: TOnRunModal read FOnRunModal write FOnRunModal;
property OnLoadStart: TOnLoadStart read FOnLoadStart write FOnLoadStart;
property OnLoadEnd: TOnLoadEnd read FOnLoadEnd write FOnLoadEnd;
property OnLoadError: TOnLoadError read FOnLoadError write FOnLoadError;
property OnAuthCredentials: TOnAuthCredentials read FOnAuthCredentials write FOnAuthCredentials;
property OnGetDownloadHandler: TOnGetDownloadHandler read FOnGetDownloadHandler write FOnGetDownloadHandler;
property OnBeforeBrowse: TOnBeforeBrowse read FOnBeforeBrowse write FOnBeforeBrowse;
property OnBeforeResourceLoad: TOnBeforeResourceLoad read FOnBeforeResourceLoad write FOnBeforeResourceLoad;
property OnProtocolExecution: TOnProtocolExecution read FOnProtocolExecution write FOnProtocolExecution;
property OnResourceResponse: TOnResourceResponse read FOnResourceResponse write FOnResourceResponse;
property OnAddressChange: TOnAddressChange read FOnAddressChange write FOnAddressChange;
property OnContentsSizeChange: TOnContentsSizeChange read FOnContentsSizeChange write FOnContentsSizeChange;
property OnConsoleMessage: TOnConsoleMessage read FOnConsoleMessage write FOnConsoleMessage;
property OnNavStateChange: TOnNavStateChange read FOnNavStateChange write FOnNavStateChange;
property OnStatusMessage: TOnStatusMessage read FOnStatusMessage write FOnStatusMessage;
property OnTitleChange: TOnTitleChange read FOnTitleChange write FOnTitleChange;
property OnTooltip: TOnTooltip read FOnTooltip write FOnTooltip;
property OnTakeFocus: TOnTakeFocus read FOnTakeFocus write FOnTakeFocus;
property OnSetFocus: TOnSetFocus read FOnSetFocus write FOnSetFocus;
property OnFocusedNodeChanged: TOnFocusedNodeChanged read FOnFocusedNodeChanged write FOnFocusedNodeChanged;
property OnKeyEvent: TOnKeyEvent read FOnKeyEvent write FOnKeyEvent;
property OnBeforeMenu: TOnBeforeMenu read FOnBeforeMenu write FOnBeforeMenu;
property OnGetMenuLabel: TOnGetMenuLabel read FOnGetMenuLabel write FOnGetMenuLabel;
property OnMenuAction: TOnMenuAction read FOnMenuAction write FOnMenuAction;
property OnPrintHeaderFooter: TOnPrintHeaderFooter read FOnPrintHeaderFooter write FOnPrintHeaderFooter;
property OnPrintOptions: TOnPrintOptions read FOnPrintOptions write FOnPrintOptions;
property OnJsAlert: TOnJsAlert read FOnJsAlert write FOnJsAlert;
property OnJsConfirm: TOnJsConfirm read FOnJsConfirm write FOnJsConfirm;
property OnJsPrompt: TOnJsPrompt read FOnJsPrompt write FOnJsPrompt;
property OnJsBinding: TOnJsBinding read FOnJsBinding write FOnJsBinding;
property OnFindResult: TOnFindResult read FOnFindResult write FOnFindResult;
property OnDragStart: TOnDragEvent read FOnDragStart write FOnDragStart;
property OnDragEnter: TOnDragEvent read FOnDragEnter write FOnDragEnter;
property OnChromiumLibLoad: TNotifyEvent read FOnChromiumLibLoad write FOnChromiumLibLoad;
property Options: TChromiumOptions read FOptions write FOptions;
property FontOptions: TChromiumFontOptions read FFontOptions;
property DefaultEncoding: ustring read FDefaultEncoding write FDefaultEncoding;
property UserStyleSheetLocation: ustring read FUserStyleSheetLocation write FUserStyleSheetLocation;
property BrowserHandle: HWND read FBrowserHandle;
property Browser: ICefBrowser read FBrowser;
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
procedure Load(const url: ustring);
procedure ReCreateBrowser(const url: string);
end;
TChromium = class(TCustomChromium)
public
property BrowserHandle;
property Browser;
published
property Color;
property Constraints;
property TabStop;
property Align;
property Anchors;
property DefaultUrl;
property TabOrder;
property Visible;
property OnBeforePopup;
property OnAfterCreated;
property OnBeforeClose;
property OnClose;
property OnRunModal;
property OnLoadStart;
property OnLoadEnd;
property OnLoadError;
property OnAuthCredentials;
property OnGetDownloadHandler;
property OnBeforeBrowse;
property OnBeforeResourceLoad;
property OnProtocolExecution;
property OnResourceResponse;
property OnAddressChange;
property OnContentsSizeChange;
property OnConsoleMessage;
property OnNavStateChange;
property OnStatusMessage;
property OnTitleChange;
property OnTooltip;
property OnTakeFocus;
property OnSetFocus;
property OnFocusedNodeChanged;
property OnKeyEvent;
property OnBeforeMenu;
property OnGetMenuLabel;
property OnMenuAction;
property OnPrintHeaderFooter;
property OnPrintOptions;
property OnJsAlert;
property OnJsConfirm;
property OnJsPrompt;
property OnJsBinding;
property OnFindResult;
property OnDragStart;
property OnDragEnter;
property OnChromiumLibLoad;
property Options;
property FontOptions;
property DefaultEncoding;
property UserStyleSheetLocation;
end;
TChromiumOSR = class(TCustomChromiumOSR)
protected
function GetHandlerClass: TCustomClientHandlerClass; override;
public
property Browser;
published
property DefaultUrl;
property OnBeforePopup;
property OnAfterCreated;
property OnBeforeClose;
property OnClose;
property OnRunModal;
property OnLoadStart;
property OnLoadEnd;
property OnLoadError;
property OnAuthCredentials;
property OnGetDownloadHandler;
property OnBeforeBrowse;
property OnBeforeResourceLoad;
property OnProtocolExecution;
property OnResourceResponse;
property OnAddressChange;
property OnContentsSizeChange;
property OnConsoleMessage;
property OnNavStateChange;
property OnStatusMessage;
property OnTitleChange;
property OnTooltip;
property OnTakeFocus;
property OnSetFocus;
property OnFocusedNodeChanged;
property OnKeyEvent;
property OnBeforeMenu;
property OnGetMenuLabel;
property OnMenuAction;
property OnPrintHeaderFooter;
property OnPrintOptions;
property OnJsAlert;
property OnJsConfirm;
property OnJsPrompt;
property OnJsBinding;
property OnFindResult;
property OnGetViewRect;
property OnGetScreenRect;
property OnGetScreenPoint;
property OnPopupShow;
property OnPopupSize;
property OnPaint;
property OnCursorChange;
property OnDragStart;
property OnDragEnter;
property Options;
property FontOptions;
property DefaultEncoding;
property UserStyleSheetLocation;
end;
function CefGetBitmap(const browser: ICefBrowser; typ: TCefPaintElementType; Bitmap: TBitmap): Boolean;
implementation
{$IFNDEF CEF_MULTI_THREADED_MESSAGE_LOOP}
uses
{$IFDEF DELPHI16_UP}
Vcl.AppEvnts;
{$ELSE}
AppEvnts;
{$ENDIF}
var
CefInstances: Integer = 0;
CefTimer: UINT = 0;
{$ENDIF}
type
TVCLClientHandler = class(TCustomClientHandler)
public
constructor Create(const crm: IChromiumEvents); override;
destructor Destroy; override;
end;
function CefGetBitmap(const browser: ICefBrowser; typ: TCefPaintElementType; Bitmap: TBitmap): Boolean;
var
w, h, i: Integer;
p, s: Pointer;
begin
browser.GetSize(typ, w, h);
Bitmap.PixelFormat := pf32bit;
{$IFDEF DELPHI12_UP}
Bitmap.SetSize(w, h);
{$ELSE}
Bitmap.Width := w;
Bitmap.Height := h;
{$ENDIF}
GetMem(p, h * w * 4);
try
Result := browser.GetImage(typ, w, h, p);
s := p;
for i := 0 to h - 1 do
begin
Move(s^, Bitmap.ScanLine[i]^, w*4);
Inc(Integer(s), w*4);
end;
finally
FreeMem(p);
end;
end;
{ TVCLClientHandler }
constructor TVCLClientHandler.Create(const crm: IChromiumEvents);
begin
inherited Create(crm);
{$IFNDEF CEF_MULTI_THREADED_MESSAGE_LOOP}
if CefInstances = 0 then
CefTimer := SetTimer(0, 0, 10, nil);
InterlockedIncrement(CefInstances);
{$ENDIF}
end;
destructor TVCLClientHandler.Destroy;
begin
{$IFNDEF CEF_MULTI_THREADED_MESSAGE_LOOP}
InterlockedDecrement(CefInstances);
if CefInstances = 0 then
KillTimer(0, CefTimer);
{$ENDIF}
inherited;
end;
{ TCustomChromium }
constructor TCustomChromium.Create(AOwner: TComponent);
begin
inherited;
if not (csDesigning in ComponentState) then
FHandler := TVCLClientHandler.Create(Self) as ICefBase;
FOptions := TChromiumOptions.Create;
FFontOptions := TChromiumFontOptions.Create;
FUserStyleSheetLocation := '';
FDefaultEncoding := '';
FBrowserHandle := INVALID_HANDLE_VALUE;
FBrowser := nil;
end;
procedure TCustomChromium.CreateBrowser;
var
info: TCefWindowInfo;
settings: TCefBrowserSettings;
rect: TRect;
begin
if not (csDesigning in ComponentState) then
begin
FillChar(info, SizeOf(info), 0);
rect := GetClientRect;
info.Style := WS_CHILD or WS_VISIBLE or WS_CLIPCHILDREN or WS_CLIPSIBLINGS or WS_TABSTOP;
info.WndParent := Handle;
info.x := rect.left;
info.y := rect.top;
info.Width := rect.right - rect.left;
info.Height := rect.bottom - rect.top;
info.ExStyle := 0;
FillChar(settings, SizeOf(TCefBrowserSettings), 0);
settings.size := SizeOf(TCefBrowserSettings);
GetSettings(settings);
if ( ChromiumLibHandle = 0 ) then
begin
if Assigned(FOnChromiumLibLoad) then
FOnChromiumLibLoad( Self );
end;
FBrowser := CefBrowserCreateSync(@info, FHandler.Wrap, '', @settings);
FBrowserHandle := FBrowser.GetWindowHandle;
end;
end;
procedure TCustomChromium.CreateWindowHandle(const Params: TCreateParams);
begin
inherited;
CreateBrowser;
end;
destructor TCustomChromium.Destroy;
begin
if FBrowser <> nil then
FBrowser.ParentWindowWillClose;
if FHandler <> nil then
(FHandler as ICefClientHandler).Disconnect;
FHandler := nil;
FBrowser := nil;
FFontOptions.Free;
FOptions.Free;
inherited;
end;
procedure TCustomChromium.doOnAddressChange(const browser: ICefBrowser;
const frame: ICefFrame; const url: ustring);
begin
if Assigned(FOnAddressChange) then
FOnAddressChange(Self, browser, frame, url);
end;
procedure TCustomChromium.doOnAfterCreated(const browser: ICefBrowser);
begin
{$IFDEF CEF_MULTI_THREADED_MESSAGE_LOOP}
if (browser <> nil) and not browser.IsPopup then
begin
FBrowser := browser;
FBrowserHandle := browser.GetWindowHandle;
end;
{$ENDIF}
if Assigned(FOnAfterCreated) then
FOnAfterCreated(Self, browser);
end;
function TCustomChromium.doOnAuthCredentials(const browser: ICefBrowser;
isProxy: Boolean; Port: Integer; const host, realm, scheme: ustring; var username,
password: ustring): Boolean;
begin
Result := False;
if Assigned(FOnAuthCredentials) then
FOnAuthCredentials(Self, browser, isProxy, port, host, realm, scheme, username, password, Result);
end;
function TCustomChromium.doOnBeforeBrowse(const browser: ICefBrowser;
const frame: ICefFrame; const request: ICefRequest;
navType: TCefHandlerNavtype; isRedirect: boolean): Boolean;
begin
Result := False;
if Assigned(FOnBeforeBrowse) then
FOnBeforeBrowse(Self, browser, frame, request, navType, isRedirect, Result);
end;
function TCustomChromium.doOnBeforeMenu(const browser: ICefBrowser;
const menuInfo: PCefHandlerMenuInfo): Boolean;
begin
Result := False;
if Assigned(FOnBeforeMenu) then
FOnBeforeMenu(Self, browser, menuInfo, Result);
end;
function TCustomChromium.doOnBeforePopup(const parentBrowser: ICefBrowser;
var popupFeatures: TCefPopupFeatures; var windowInfo: TCefWindowInfo;
var url: ustring; var client: ICefBase): Boolean;
begin
Result := False;
if Assigned(FOnBeforePopup) then
FOnBeforePopup(Self, parentBrowser, popupFeatures, windowInfo, url, client, Result);
end;
function TCustomChromium.doOnBeforeResourceLoad(const browser: ICefBrowser;
const request: ICefRequest; var redirectUrl: ustring;
var resourceStream: ICefStreamReader; const response: ICefResponse;
loadFlags: Integer): Boolean;
begin
Result := False;
if Assigned(FOnBeforeResourceLoad) then
FOnBeforeResourceLoad(Self, browser, request, redirectUrl, resourceStream,
response, loadFlags, Result);
end;
function TCustomChromium.doOnBeforeClose(
const browser: ICefBrowser): Boolean;
begin
Result := False;
if Assigned(FOnBeforeClose) then
FOnBeforeClose(Self, browser, Result);
end;
function TCustomChromium.doOnConsoleMessage(const browser: ICefBrowser; const message,
source: ustring; line: Integer): Boolean;
begin
Result := False;
if Assigned(FOnConsoleMessage) then
FOnConsoleMessage(Self, browser, message, source, line, Result);
end;
procedure TCustomChromium.doOnContentsSizeChange(const browser: ICefBrowser;
const frame: ICefFrame; width, height: Integer);
begin
if Assigned(FOnConsoleMessage) then
FOnContentsSizeChange(Self, browser, frame, width, height);
end;
function TCustomChromium.doOnGetDownloadHandler(const browser: ICefBrowser;
const mimeType, fileName: ustring; contentLength: int64;
var handler: ICefDownloadHandler): Boolean;
begin
Result := False;
if Assigned(FOnGetDownloadHandler) then
FOnGetDownloadHandler(Self, browser, mimeType, fileName, contentLength, handler, Result);
end;
function TCustomChromium.doOnFindResult(const browser: ICefBrowser;
count: Integer; selectionRect: PCefRect; identifier, activeMatchOrdinal,
finalUpdate: Boolean): Boolean;
begin
Result := False;
if Assigned(FOnFindResult) then
FOnFindResult(Self, browser, count, selectionRect, identifier,
activeMatchOrdinal, finalUpdate, Result);
end;
procedure TCustomChromium.doOnFocusedNodeChanged(const browser: ICefBrowser;
const frame: ICefFrame; const node: ICefDomNode);
begin
if Assigned(FOnFocusedNodeChanged) then
FOnFocusedNodeChanged(Self, browser, frame, node);
end;
function TCustomChromium.doOnGetMenuLabel(const browser: ICefBrowser;
menuId: TCefHandlerMenuId; var caption: ustring): Boolean;
begin
Result := False;
if Assigned(FOnGetMenuLabel) then
FOnGetMenuLabel(Self, browser, menuId, caption, Result);
end;
function TCustomChromium.doOnGetScreenPoint(const browser: ICefBrowser; viewX,
viewY: Integer; screenX, screenY: PInteger): Boolean;
begin
Result := False;
end;
function TCustomChromium.doOnGetScreenRect(const browser: ICefBrowser;
rect: PCefRect): Boolean;
begin
Result := False;
end;
function TCustomChromium.doOnGetViewRect(const browser: ICefBrowser;
rect: PCefRect): Boolean;
begin
Result := False;
end;
function TCustomChromium.doOnJsAlert(const browser: ICefBrowser;
const frame: ICefFrame; const message: ustring): Boolean;
begin
Result := False;
if Assigned(FOnJsAlert) then
FOnJsAlert(Self, browser, frame, message, Result);
end;
function TCustomChromium.doOnJsBinding(const browser: ICefBrowser;
const frame: ICefFrame; const obj: ICefv8Value): Boolean;
begin
Result := False;
if Assigned(FOnJsBinding) then
FOnJsBinding(Self, browser, frame, obj, Result);
end;
function TCustomChromium.doOnJsConfirm(const browser: ICefBrowser;
const frame: ICefFrame; const message: ustring;
var retval: Boolean): Boolean;
begin
Result := False;
if Assigned(FOnJsConfirm) then
FOnJsConfirm(Self, browser, frame, message, retval, Result);
end;
function TCustomChromium.doOnJsPrompt(const browser: ICefBrowser;
const frame: ICefFrame; const message, defaultValue: ustring;
var retval: Boolean; var return: ustring): Boolean;
begin
Result := False;
if Assigned(FOnJsPrompt) then
FOnJsPrompt(Self, browser, frame, message, defaultValue, retval, return, Result);
end;
function TCustomChromium.doOnKeyEvent(const browser: ICefBrowser;
event: TCefHandlerKeyEventType; code, modifiers: Integer;
isSystemKey, isAfterJavaScript: Boolean): Boolean;
begin
Result := False;
if Assigned(FOnKeyEvent) then
FOnKeyEvent(Self, browser, event, code, modifiers, isSystemKey, isAfterJavaScript, Result);
end;
function TCustomChromium.doOnLoadEnd(const browser: ICefBrowser;
const frame: ICefFrame; httpStatusCode: Integer): Boolean;
begin
Result := False;
if Assigned(FOnLoadEnd) then
FOnLoadEnd(Self, browser, frame, httpStatusCode, Result);
end;
function TCustomChromium.doOnLoadError(const browser: ICefBrowser;
const frame: ICefFrame; errorCode: TCefHandlerErrorcode;
const failedUrl: ustring; var errorText: ustring): Boolean;
begin
Result := False;
if Assigned(FOnLoadError) then
FOnLoadError(Self, browser, frame, errorCode, failedUrl, errorText, Result);
end;
procedure TCustomChromium.doOnLoadStart(const browser: ICefBrowser;
const frame: ICefFrame);
begin
if Assigned(FOnLoadStart) then
FOnLoadStart(Self, browser, frame);
end;
function TCustomChromium.doOnMenuAction(const browser: ICefBrowser;
menuId: TCefHandlerMenuId): Boolean;
begin
Result := False;
if Assigned(FOnMenuAction) then
FOnMenuAction(Self, browser, menuId, Result);
end;
function TCustomChromium.doOnNavStateChange(const browser: ICefBrowser;
canGoBack, canGoForward: Boolean): Boolean;
begin
Result := False;
if Assigned(FOnNavStateChange) then
FOnNavStateChange(Self, browser, canGoBack, canGoForward, Result);
end;
procedure TCustomChromium.doOnCursorChange(const browser: ICefBrowser;
cursor: TCefCursorHandle);
begin
end;
function TCustomChromium.doOnDragEnter(const browser: ICefBrowser;
const dragData: ICefDragData; mask: Integer): Boolean;
begin
Result := False;
if Assigned(FOnDragEnter) then
FOnDragEnter(Self, browser, dragData, mask, Result);
end;
function TCustomChromium.doOnDragStart(const browser: ICefBrowser;
const dragData: ICefDragData; mask: Integer): Boolean;
begin
Result := False;
if Assigned(FOnDragStart) then
FOnDragStart(Self, browser, dragData, mask, Result);
end;
procedure TCustomChromium.doOnPaint(const browser: ICefBrowser;
kind: TCefPaintElementType; const dirtyRect: PCefRect; const buffer: Pointer);
begin
end;
procedure TCustomChromium.doOnPopupShow(const browser: ICefBrowser;
show: Boolean);
begin
end;
procedure TCustomChromium.doOnPopupSize(const browser: ICefBrowser;
const rect: PCefRect);
begin
end;
function TCustomChromium.doOnPrintHeaderFooter(const browser: ICefBrowser;
const frame: ICefFrame; printInfo: PCefPrintInfo; const url, title: ustring;
currentPage, maxPages: Integer; var topLeft, topCenter, topRight, bottomLeft,
bottomCenter, bottomRight: ustring): Boolean;
begin
Result := False;
if Assigned(FOnPrintHeaderFooter) then
FOnPrintHeaderFooter(Self, browser, frame, printInfo, url, title,
currentPage, maxPages, topLeft, topCenter, topRight, bottomLeft,
bottomCenter, bottomRight, Result);
end;
function TCustomChromium.doOnPrintOptions(const browser: ICefBrowser;
printOptions: PCefPrintOptions): Boolean;
begin
Result := False;
if Assigned(FOnPrintOptions) then
FOnPrintOptions(Self, browser, printOptions, Result);
end;
function TCustomChromium.doOnProtocolExecution(const browser: ICefBrowser;
const url: ustring; var AllowOsExecution: Boolean): Boolean;
begin
Result := False;
if Assigned(FOnProtocolExecution) then
FOnProtocolExecution(Self, browser, url, AllowOsExecution, Result);
end;
function TCustomChromium.doOnClose(const browser: ICefBrowser): Boolean;
begin
Result := False;
if Assigned(FOnClose) then
FOnClose(Self, browser, Result);
end;
procedure TCustomChromium.doOnResourceResponse(const browser: ICefBrowser;
const url: ustring; const response: ICefResponse; var filter: ICefBase);
begin
if Assigned(FOnResourceResponse) then
FOnResourceResponse(Self, browser, url, response, filter);
end;
function TCustomChromium.doOnRunModal(const browser: ICefBrowser): Boolean;
begin
Result := False;
if Assigned(FOnRunModal) then
FOnRunModal(Self, browser, Result);
end;
function TCustomChromium.doOnSetFocus(const browser: ICefBrowser;
source: TCefHandlerFocusSource): Boolean;
begin
Result := False;
if Assigned(FOnSetFocus) then
FOnSetFocus(Self, browser, source, Result);
end;
function TCustomChromium.doOnStatusMessage(const browser: ICefBrowser;
const value: ustring; StatusType: TCefHandlerStatusType): Boolean;
begin
Result := False;
if Assigned(FOnStatusMessage) then
FOnStatusMessage(Self, browser, value, StatusType, Result);
end;
procedure TCustomChromium.doOnTakeFocus(const browser: ICefBrowser;
next: Boolean);
begin
if Assigned(FOnTakeFocus) then
FOnTakeFocus(Self, browser, next);
end;
function TCustomChromium.doOnTitleChange(const browser: ICefBrowser;
const title: ustring): Boolean;
begin
Result := False;
if Assigned(FOnTitleChange) then
FOnTitleChange(Self, browser, title, Result);
end;
function TCustomChromium.doOnTooltip(const browser: ICefBrowser;
var text: ustring): Boolean;
begin
Result := False;
if Assigned(FOnTooltip) then
FOnTooltip(Self, browser, text, Result);
end;
procedure TCustomChromium.GetSettings(var settings: TCefBrowserSettings);
begin
Assert(settings.size >= SizeOf(settings));
settings.standard_font_family := CefString(FFontOptions.StandardFontFamily);
settings.fixed_font_family := CefString(FFontOptions.FixedFontFamily);
settings.serif_font_family := CefString(FFontOptions.SerifFontFamily);
settings.sans_serif_font_family := CefString(FFontOptions.SansSerifFontFamily);
settings.cursive_font_family := CefString(FFontOptions.CursiveFontFamily);
settings.fantasy_font_family := CefString(FFontOptions.FantasyFontFamily);
settings.default_font_size := FFontOptions.DefaultFontSize;
settings.default_fixed_font_size := FFontOptions.DefaultFixedFontSize;
settings.minimum_font_size := FFontOptions.MinimumFontSize;
settings.minimum_logical_font_size := FFontOptions.MinimumLogicalFontSize;
settings.remote_fonts_disabled := FFontOptions.RemoteFontsDisabled;
settings.default_encoding := CefString(DefaultEncoding);
settings.user_style_sheet_location := CefString(UserStyleSheetLocation);
settings.drag_drop_disabled := FOptions.DragDropDisabled;
settings.load_drops_disabled := FOptions.LoadDropsDisabled;
settings.encoding_detector_enabled := FOptions.EncodingDetectorEnabled;
settings.javascript_disabled := FOptions.JavascriptDisabled;
settings.javascript_open_windows_disallowed := FOptions.JavascriptOpenWindowsDisallowed;
settings.javascript_close_windows_disallowed := FOptions.JavascriptCloseWindowsDisallowed;
settings.javascript_access_clipboard_disallowed := FOptions.JavascriptAccessClipboardDisallowed;
settings.dom_paste_disabled := FOptions.DomPasteDisabled;
settings.caret_browsing_enabled := FOptions.CaretBrowsingEnabled;
settings.java_disabled := FOptions.JavaDisabled;
settings.plugins_disabled := FOptions.PluginsDisabled;
settings.universal_access_from_file_urls_allowed := FOptions.UniversalAccessFromFileUrlsAllowed;
settings.file_access_from_file_urls_allowed := FOptions.FileAccessFromFileUrlsAllowed;
settings.web_security_disabled := FOptions.WebSecurityDisabled;
settings.xss_auditor_enabled := FOptions.XssAuditorEnabled;
settings.image_load_disabled := FOptions.ImageLoadDisabled;
settings.shrink_standalone_images_to_fit := FOptions.ShrinkStandaloneImagesToFit;
settings.site_specific_quirks_disabled := FOptions.SiteSpecificQuirksDisabled;
settings.text_area_resize_disabled := FOptions.TextAreaResizeDisabled;
settings.page_cache_disabled := FOptions.PageCacheDisabled;
settings.tab_to_links_disabled := FOptions.TabToLinksDisabled;
settings.hyperlink_auditing_disabled := FOptions.HyperlinkAuditingDisabled;
settings.user_style_sheet_enabled := FOptions.UserStyleSheetEnabled;
settings.author_and_user_styles_disabled := FOptions.AuthorAndUserStylesDisabled;
settings.local_storage_disabled := FOptions.LocalStorageDisabled;
settings.databases_disabled := FOptions.DatabasesDisabled;
settings.application_cache_disabled := FOptions.ApplicationCacheDisabled;
settings.webgl_disabled := FOptions.WebglDisabled;
settings.accelerated_compositing_enabled := FOptions.AcceleratedCompositingEnabled;
settings.threaded_compositing_enabled := FOptions.ThreadedCompositingEnabled;
settings.accelerated_layers_disabled := FOptions.AcceleratedLayersDisabled;
settings.accelerated_2d_canvas_disabled := FOptions.Accelerated2dCanvasDisabled;
settings.developer_tools_disabled := FOptions.DeveloperToolsDisabled;
end;
procedure TCustomChromium.Load(const url: ustring);
var
frm: ICefFrame;
begin
HandleNeeded;
if FBrowser <> nil then
begin
frm := FBrowser.MainFrame;
if frm <> nil then
frm.LoadUrl(url);
end;
end;
procedure TCustomChromium.Loaded;
begin
inherited;
Load(FDefaultUrl);
end;
procedure TCustomChromium.ReCreateBrowser(const url: string);
begin
if (FBrowser <> nil) {$IFNDEF FMX}and (FBrowserHandle <> 0){$ENDIF} then
begin
FBrowser.ParentWindowWillClose;
SendMessage(FBrowserHandle, WM_CLOSE, 0, 0);
SendMessage(FBrowserHandle, WM_DESTROY, 0, 0);
FBrowserHandle := 0;
FBrowser := nil;
CreateBrowser;
Load(url);
end;
end;
procedure TCustomChromium.Resize;
var
brws: ICefBrowser;
rect: TRect;
hdwp: THandle;
begin
inherited;
if not (csDesigning in ComponentState) then
begin
brws := FBrowser;
if (brws <> nil) and (brws.GetWindowHandle <> INVALID_HANDLE_VALUE) then
begin
rect := GetClientRect;
hdwp := BeginDeferWindowPos(1);
try
hdwp := DeferWindowPos(hdwp, brws.GetWindowHandle, 0,
rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top,
SWP_NOZORDER);
finally
EndDeferWindowPos(hdwp);