unit uMiniBrowser; {$I cef.inc} interface uses {$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, Vcl.AppEvnts, Winapi.ActiveX, Winapi.ShlObj, System.NetEncoding, {$ELSE} Windows, Messages, SysUtils, Variants, Classes, Graphics, Menus, Controls, Forms, Dialogs, StdCtrls, ExtCtrls, Types, ComCtrls, ClipBrd, AppEvnts, ActiveX, ShlObj, NetEncoding, {$ENDIF} uCEFChromium, uCEFWindowParent, uCEFInterfaces, uCEFApplication, uCEFTypes, uCEFConstants, uCEFWinControl, uCEFSentinel, uCEFChromiumCore, uCEFFileDialogInfo; const MINIBROWSER_SHOWDEVTOOLS = WM_APP + $101; MINIBROWSER_HIDEDEVTOOLS = WM_APP + $102; MINIBROWSER_COPYHTML = WM_APP + $103; MINIBROWSER_SHOWRESPONSE = WM_APP + $104; MINIBROWSER_COPYFRAMEIDS = WM_APP + $105; MINIBROWSER_COPYFRAMENAMES = WM_APP + $106; MINIBROWSER_SAVEPREFERENCES = WM_APP + $107; MINIBROWSER_COPYALLTEXT = WM_APP + $108; MINIBROWSER_TAKESNAPSHOT = WM_APP + $109; MINIBROWSER_SHOWNAVIGATION = WM_APP + $10A; MINIBROWSER_COOKIESFLUSHED = WM_APP + $10B; MINIBROWSER_PDFPRINT_END = WM_APP + $10C; MINIBROWSER_PREFS_AVLBL = WM_APP + $10D; MINIBROWSER_DTDATA_AVLBL = WM_APP + $10E; MINIBROWSER_SHOWFILEDLG = WM_APP + $10F; MINIBROWSER_SELECTCERT = WM_APP + $110; MINIBROWSER_MEDIAACCESSRQST = WM_APP + $111; MINIBROWSER_HOMEPAGE = 'https://www.google.com'; MINIBROWSER_CONTEXTMENU_SHOWDEVTOOLS = MENU_ID_USER_FIRST + 1; MINIBROWSER_CONTEXTMENU_HIDEDEVTOOLS = MENU_ID_USER_FIRST + 2; MINIBROWSER_CONTEXTMENU_COPYHTML = MENU_ID_USER_FIRST + 3; MINIBROWSER_CONTEXTMENU_JSWRITEDOC = MENU_ID_USER_FIRST + 4; MINIBROWSER_CONTEXTMENU_JSPRINTDOC = MENU_ID_USER_FIRST + 5; MINIBROWSER_CONTEXTMENU_SHOWRESPONSE = MENU_ID_USER_FIRST + 6; MINIBROWSER_CONTEXTMENU_COPYFRAMEIDS = MENU_ID_USER_FIRST + 7; MINIBROWSER_CONTEXTMENU_COPYFRAMENAMES = MENU_ID_USER_FIRST + 8; MINIBROWSER_CONTEXTMENU_SAVEPREFERENCES = MENU_ID_USER_FIRST + 9; MINIBROWSER_CONTEXTMENU_COPYALLTEXT = MENU_ID_USER_FIRST + 10; MINIBROWSER_CONTEXTMENU_TAKESNAPSHOT = MENU_ID_USER_FIRST + 11; MINIBROWSER_CONTEXTMENU_GETNAVIGATION = MENU_ID_USER_FIRST + 12; MINIBROWSER_CONTEXTMENU_MUTEAUDIO = MENU_ID_USER_FIRST + 13; MINIBROWSER_CONTEXTMENU_UNMUTEAUDIO = MENU_ID_USER_FIRST + 14; MINIBROWSER_CONTEXTMENU_INCZOOM = MENU_ID_USER_FIRST + 15; MINIBROWSER_CONTEXTMENU_DECZOOM = MENU_ID_USER_FIRST + 16; MINIBROWSER_CONTEXTMENU_RESETZOOM = MENU_ID_USER_FIRST + 17; DEVTOOLS_SCREENSHOT_MSGID = 1; DEVTOOLS_MHTML_MSGID = 2; type TMiniBrowserFrm = class(TForm) NavControlPnl: TPanel; NavButtonPnl: TPanel; URLEditPnl: TPanel; BackBtn: TButton; ForwardBtn: TButton; ReloadBtn: TButton; CEFWindowParent1: TCEFWindowParent; Chromium1: TChromium; StopBtn: TButton; DevTools: TCEFWindowParent; Splitter1: TSplitter; StatusBar1: TStatusBar; URLCbx: TComboBox; ConfigPnl: TPanel; ConfigBtn: TButton; PopupMenu1: TPopupMenu; DevTools1: TMenuItem; N1: TMenuItem; Preferences1: TMenuItem; GoBtn: TButton; N2: TMenuItem; PrintinPDF1: TMenuItem; Print1: TMenuItem; N3: TMenuItem; Zoom1: TMenuItem; Inczoom1: TMenuItem; Deczoom1: TMenuItem; Resetzoom1: TMenuItem; SaveDialog1: TSaveDialog; ApplicationEvents1: TApplicationEvents; OpenDialog1: TOpenDialog; N4: TMenuItem; Openfile1: TMenuItem; Resolvehost1: TMenuItem; Timer1: TTimer; OpenfilewithaDAT1: TMenuItem; N5: TMenuItem; Memoryinfo1: TMenuItem; Downloadimage1: TMenuItem; Simulatekeyboardpresses1: TMenuItem; Flushcookies1: TMenuItem; Acceptlanguage1: TMenuItem; FindText1: TMenuItem; Clearcache1: TMenuItem; akescreenshot1: TMenuItem; Useragent1: TMenuItem; ClearallstorageforcurrentURL1: TMenuItem; CEFinfo1: TMenuItem; SaveasMHTML1: TMenuItem; Allowdownloads1: TMenuItem; Toggleaudio1: TMenuItem; procedure FormShow(Sender: TObject); procedure FormCreate(Sender: TObject); procedure FormDestroy(Sender: TObject); procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean); procedure ApplicationEvents1Message(var Msg: tagMSG; var Handled: Boolean); procedure Chromium1AfterCreated(Sender: TObject; const browser: ICefBrowser); procedure Chromium1LoadingStateChange(Sender: TObject; const browser: ICefBrowser; isLoading, canGoBack, canGoForward: Boolean); procedure Chromium1TitleChange(Sender: TObject; const browser: ICefBrowser; const title: ustring); procedure Chromium1AddressChange(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const url: ustring); procedure Chromium1BeforeContextMenu(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const params: ICefContextMenuParams; const model: ICefMenuModel); procedure Chromium1StatusMessage(Sender: TObject; const browser: ICefBrowser; const value: ustring); procedure Chromium1TextResultAvailable(Sender: TObject; const aText: ustring); procedure Chromium1FullScreenModeChange(Sender: TObject; const browser: ICefBrowser; fullscreen: Boolean); procedure Chromium1PreKeyEvent(Sender: TObject; const browser: ICefBrowser; const event: PCefKeyEvent; osEvent: TCefEventHandle; out isKeyboardShortcut, Result: Boolean); procedure Chromium1KeyEvent(Sender: TObject; const browser: ICefBrowser; const event: PCefKeyEvent; osEvent: TCefEventHandle; out Result: Boolean); procedure Chromium1ContextMenuCommand(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const params: ICefContextMenuParams; commandId: Integer; eventFlags: Cardinal; out Result: Boolean); procedure Chromium1PdfPrintFinished(Sender: TObject; aResultOK: Boolean); procedure Chromium1ResourceResponse(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const response: ICefResponse; out Result: Boolean); procedure Chromium1ResolvedHostAvailable(Sender: TObject; result: Integer; const resolvedIps: TStrings); procedure Chromium1PrefsAvailable(Sender: TObject; aResultOK: Boolean); procedure Chromium1BeforeDownload(Sender: TObject; const browser: ICefBrowser; const downloadItem: ICefDownloadItem; const suggestedName: ustring; const callback: ICefBeforeDownloadCallback); procedure Chromium1DownloadUpdated(Sender: TObject; const browser: ICefBrowser; const downloadItem: ICefDownloadItem; const callback: ICefDownloadItemCallback); procedure Chromium1BeforeResourceLoad(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const callback: ICefCallback; out Result: TCefReturnValue); procedure Chromium1Close(Sender: TObject; const browser: ICefBrowser; var aAction : TCefCloseBrowserAction); procedure Chromium1BeforeClose(Sender: TObject; const browser: ICefBrowser); procedure Chromium1RenderCompMsg(Sender: TObject; var aMessage : TMessage; var aHandled: Boolean); procedure Chromium1LoadingProgressChange(Sender: TObject; const browser: ICefBrowser; const progress: Double); procedure Chromium1LoadEnd(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; httpStatusCode: Integer); procedure Chromium1LoadError(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; errorCode: Integer; const errorText, failedUrl: ustring); procedure Chromium1CertificateError(Sender: TObject; const browser: ICefBrowser; certError: Integer; const requestUrl: ustring; const sslInfo: ICefSslInfo; const callback: ICefCallback; out Result: Boolean); procedure Chromium1NavigationVisitorResultAvailable(Sender: TObject; const entry: ICefNavigationEntry; current: Boolean; index, total: Integer; var aResult: Boolean); procedure Chromium1DownloadImageFinished(Sender: TObject; const imageUrl: ustring; httpStatusCode: Integer; const image: ICefImage); procedure Chromium1CookiesFlushed(Sender: TObject); procedure Chromium1ZoomPctAvailable(Sender: TObject; const aZoomPct: Double); procedure Chromium1DevToolsMethodResult(Sender: TObject; const browser: ICefBrowser; message_id: Integer; success: Boolean; const result: ICefValue); procedure Chromium1FileDialog(Sender: TObject; const browser: ICefBrowser; mode: Cardinal; const title, defaultFilePath: ustring; const acceptFilters: TStrings; const callback: ICefFileDialogCallback; var Result: Boolean); procedure Chromium1SelectClientCertificate(Sender: TObject; const browser: ICefBrowser; isProxy: Boolean; const host: ustring; port: Integer; certificatesCount: NativeUInt; const certificates: TCefX509CertificateArray; const callback: ICefSelectClientCertificateCallback; var aResult: Boolean); procedure Chromium1CursorChange(Sender: TObject; const browser: ICefBrowser; cursor_: TCefCursorHandle; cursorType: TCefCursorType; const customCursorInfo: PCefCursorInfo; var aResult: Boolean); procedure Chromium1CanDownload(Sender: TObject; const browser: ICefBrowser; const url, request_method: ustring; var aResult: Boolean); procedure Chromium1MediaAccessChange(Sender: TObject; const browser: ICefBrowser; has_video_access, has_audio_access: Boolean); procedure Chromium1RequestMediaAccessPermission(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const requesting_origin: ustring; requested_permissions: Cardinal; const callback: ICefMediaAccessCallback; var aResult: Boolean); procedure Chromium1ConsoleMessage(Sender: TObject; const browser: ICefBrowser; level: Cardinal; const message_, source: ustring; line: Integer; out Result: Boolean); procedure BackBtnClick(Sender: TObject); procedure ForwardBtnClick(Sender: TObject); procedure ReloadBtnClick(Sender: TObject); procedure DevTools1Click(Sender: TObject); procedure Preferences1Click(Sender: TObject); procedure ConfigBtnClick(Sender: TObject); procedure GoBtnClick(Sender: TObject); procedure PrintinPDF1Click(Sender: TObject); procedure Print1Click(Sender: TObject); procedure Inczoom1Click(Sender: TObject); procedure Deczoom1Click(Sender: TObject); procedure Resetzoom1Click(Sender: TObject); procedure Openfile1Click(Sender: TObject); procedure StopBtnClick(Sender: TObject); procedure Resolvehost1Click(Sender: TObject); procedure OpenfilewithaDAT1Click(Sender: TObject); procedure Memoryinfo1Click(Sender: TObject); procedure Downloadimage1Click(Sender: TObject); procedure Simulatekeyboardpresses1Click(Sender: TObject); procedure Flushcookies1Click(Sender: TObject); procedure Acceptlanguage1Click(Sender: TObject); procedure PopupMenu1Popup(Sender: TObject); procedure Timer1Timer(Sender: TObject); procedure FindText1Click(Sender: TObject); procedure Clearcache1Click(Sender: TObject); procedure akescreenshot1Click(Sender: TObject); procedure Useragent1Click(Sender: TObject); procedure ClearallstorageforcurrentURL1Click(Sender: TObject); procedure CEFinfo1Click(Sender: TObject); procedure SaveasMHTML1Click(Sender: TObject); procedure Allowdownloads1Click(Sender: TObject); procedure Toggleaudio1Click(Sender: TObject); protected FPendingMsgID : integer; FDevToolsMsgValue : ustring; FShutdownReason : string; FHasShutdownReason : boolean; FSelectCertCallback : ICefSelectClientCertificateCallback; FCertificates : TCefX509CertificateArray; FAllowDownloads : boolean; FJSException : integer; FMediaAccessCallback : ICefMediaAccessCallback; FRequestingOrigin : string; FRequestedPermissions : cardinal; FResponse : TStringList; FRequest : TStringList; FNavigation : TStringList; FFileDialogInfo : TCEFFileDialogInfo; // Variables to control when can we destroy the form safely FCanClose : boolean; // Set to True in TChromium.OnBeforeClose FClosing : boolean; // Set to True in the CloseQuery event. procedure AddURL(const aURL : string); procedure DestroyCertificates; procedure ShowDevTools(aPoint : TPoint); overload; procedure ShowDevTools; overload; procedure HideDevTools; procedure HandleKeyUp(const aMsg : TMsg; var aHandled : boolean); procedure HandleKeyDown(const aMsg : TMsg; var aHandled : boolean); procedure InspectRequest(const aRequest : ICefRequest); procedure InspectResponse(const aResponse : ICefResponse); function ShowOpenFileDialog(var aFilePaths : TStringList; aMultiple : boolean) : boolean; function ShowOpenFolderDialog(var aFilePaths : TStringList) : boolean; function ShowSaveFileDialog(var aFilePaths : TStringList) : boolean; procedure BrowserCreatedMsg(var aMessage : TMessage); message CEF_AFTERCREATED; procedure BrowserDestroyMsg(var aMessage : TMessage); message CEF_DESTROY; procedure ShowDevToolsMsg(var aMessage : TMessage); message MINIBROWSER_SHOWDEVTOOLS; procedure HideDevToolsMsg(var aMessage : TMessage); message MINIBROWSER_HIDEDEVTOOLS; procedure CopyAllTextMsg(var aMessage : TMessage); message MINIBROWSER_COPYALLTEXT; procedure CopyHTMLMsg(var aMessage : TMessage); message MINIBROWSER_COPYHTML; procedure CopyFramesIDsMsg(var aMessage : TMessage); message MINIBROWSER_COPYFRAMEIDS; procedure CopyFramesNamesMsg(var aMessage : TMessage); message MINIBROWSER_COPYFRAMENAMES; procedure ShowResponseMsg(var aMessage : TMessage); message MINIBROWSER_SHOWRESPONSE; procedure ShowNavigationMsg(var aMessage : TMessage); message MINIBROWSER_SHOWNAVIGATION; procedure SavePreferencesMsg(var aMessage : TMessage); message MINIBROWSER_SAVEPREFERENCES; procedure TakeSnapshotMsg(var aMessage : TMessage); message MINIBROWSER_TAKESNAPSHOT; procedure CookiesFlushedMsg(var aMessage : TMessage); message MINIBROWSER_COOKIESFLUSHED; procedure PrintPDFEndMsg(var aMessage : TMessage); message MINIBROWSER_PDFPRINT_END; procedure PreferencesAvailableMsg(var aMessage : TMessage); message MINIBROWSER_PREFS_AVLBL; procedure DevToolsDataAvailableMsg(var aMessage : TMessage); message MINIBROWSER_DTDATA_AVLBL; procedure ShowFileDialogMsg(var aMessage : TMessage); message MINIBROWSER_SHOWFILEDLG; procedure SelectCertificateMsg(var aMessage : TMessage); message MINIBROWSER_SELECTCERT; procedure MediaAccessRequestMsg(var aMessage : TMessage); message MINIBROWSER_MEDIAACCESSRQST; procedure WMMove(var aMessage : TWMMove); message WM_MOVE; procedure WMMoving(var aMessage : TMessage); message WM_MOVING; procedure WMEnterMenuLoop(var aMessage: TMessage); message WM_ENTERMENULOOP; procedure WMExitMenuLoop(var aMessage: TMessage); message WM_EXITMENULOOP; procedure WMQueryEndSession(var aMessage: TWMQueryEndSession); message WM_QUERYENDSESSION; public procedure ShowStatusText(const aText : string); end; var MiniBrowserFrm : TMiniBrowserFrm; procedure CreateGlobalCEFApp; implementation {$R *.dfm} uses uPreferences, uCefStringMultimap, uCEFMiscFunctions, uSimpleTextViewer, uCEFClient, uFindFrm, uCEFDictionaryValue, uDirectorySelector, uSelectCertForm; // Destruction steps // ================= // 1. FormCloseQuery sets CanClose to FALSE calls TChromium.CloseBrowser which triggers the TChromium.OnClose event. // 2. TChromium.OnClose sends a CEFBROWSER_DESTROY message to destroy CEFWindowParent1 in the main thread, which triggers the TChromium.OnBeforeClose event. // 3. TChromium.OnBeforeClose sets FCanClose := True and sends WM_CLOSE to the form. procedure GlobalCEFApp_OnUncaughtException(const browser: ICefBrowser; const frame: ICefFrame; const context: ICefv8Context; const exception: ICefV8Exception; const stackTrace: ICefV8StackTrace); begin // This code runs in the render process and we can't set a breakpoint to debug it from the main application process. // Read this for more information about debugging CEF subprocesses : // https://www.briskbard.com/index.php?lang=en&pageid=cef#debugging // In this example we only use the "console trick" explained in the DOMVisitor demo to send some custom text to the // main process that will be received in TChromiumCore.OnConsoleMessage // Load the following page and delete the try..catch lines to test this event : // https://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_state_throw_error if assigned(frame) and frame.IsValid then frame.ExecuteJavaScript('console.log("GlobalCEFApp_OnUncaughtException");', '', 0); end; procedure CreateGlobalCEFApp; begin GlobalCEFApp := TCefApplication.Create; GlobalCEFApp.cache := 'cache'; GlobalCEFApp.EnablePrintPreview := True; GlobalCEFApp.EnableGPU := True; GlobalCEFApp.LogFile := 'debug.log'; GlobalCEFApp.LogSeverity := LOGSEVERITY_INFO; GlobalCEFApp.UncaughtExceptionStackSize := 50; GlobalCEFApp.OnUncaughtException := GlobalCEFApp_OnUncaughtException; //GlobalCEFApp.ChromeRuntime := True; end; procedure TMiniBrowserFrm.BackBtnClick(Sender: TObject); begin Chromium1.GoBack; end; procedure TMiniBrowserFrm.ForwardBtnClick(Sender: TObject); begin Chromium1.GoForward; end; procedure TMiniBrowserFrm.GoBtnClick(Sender: TObject); begin Chromium1.LoadURL(URLCbx.Text); end; procedure TMiniBrowserFrm.ReloadBtnClick(Sender: TObject); begin Chromium1.Reload; end; procedure TMiniBrowserFrm.Resetzoom1Click(Sender: TObject); begin Chromium1.ResetZoomStep; end; procedure TMiniBrowserFrm.Resolvehost1Click(Sender: TObject); var TempURL : string; begin TempURL := inputbox('Resolve host', 'URL :', 'http://google.com'); if (length(TempURL) > 0) then Chromium1.ResolveHost(TempURL); end; procedure TMiniBrowserFrm.CEFinfo1Click(Sender: TObject); var TempInfo : string; begin TempInfo := 'libcef.dll : ' + CRLF + GlobalCEFApp.LibCefVersion + CRLF + CRLF + 'chrome_elf.dll : ' + CRLF + GlobalCEFApp.ChromeVersion + CRLF + CRLF + 'Universal API hash : ' + CRLF + GlobalCEFApp.ApiHashUniversal + CRLF + CRLF + 'Platform API hash : ' + CRLF + GlobalCEFApp.ApiHashPlatform + CRLF + CRLF + 'Commit API hash : ' + CRLF + GlobalCEFApp.ApiHashCommit; showmessage(TempInfo); end; procedure TMiniBrowserFrm.Chromium1AddressChange(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const url: ustring); begin if Chromium1.IsSameBrowser(browser) then AddURL(url); end; procedure TMiniBrowserFrm.Chromium1AfterCreated(Sender: TObject; const browser: ICefBrowser); begin if Chromium1.IsSameBrowser(browser) then PostMessage(Handle, CEF_AFTERCREATED, 0, 0) else SendMessage(browser.Host.WindowHandle, WM_SETICON, 1, application.Icon.Handle); // Use the same icon in the popup window end; procedure TMiniBrowserFrm.Chromium1BeforeClose(Sender: TObject; const browser: ICefBrowser); begin // The main browser is being destroyed if (Chromium1.BrowserId = 0) then begin FCanClose := True; PostMessage(Handle, WM_CLOSE, 0, 0); end; end; procedure TMiniBrowserFrm.Chromium1BeforeContextMenu(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const params: ICefContextMenuParams; const model: ICefMenuModel); begin if Chromium1.IsSameBrowser(browser) then begin model.AddSeparator; model.AddItem(MINIBROWSER_CONTEXTMENU_TAKESNAPSHOT, 'Take snapshot...'); model.AddItem(MINIBROWSER_CONTEXTMENU_GETNAVIGATION, 'Get navigation entries'); model.AddSeparator; model.AddItem(MINIBROWSER_CONTEXTMENU_COPYALLTEXT, 'Copy displayed text to clipboard'); model.AddItem(MINIBROWSER_CONTEXTMENU_COPYHTML, 'Copy HTML to clipboard'); model.AddItem(MINIBROWSER_CONTEXTMENU_COPYFRAMEIDS, 'Copy HTML frame identifiers to clipboard'); model.AddItem(MINIBROWSER_CONTEXTMENU_COPYFRAMENAMES, 'Copy HTML frame names to clipboard'); model.AddSeparator; model.AddItem(MINIBROWSER_CONTEXTMENU_SAVEPREFERENCES, 'Save preferences as...'); model.AddSeparator; model.AddItem(MINIBROWSER_CONTEXTMENU_JSWRITEDOC, 'Modify HTML document'); model.AddItem(MINIBROWSER_CONTEXTMENU_JSPRINTDOC, 'Print using Javascript'); model.AddItem(MINIBROWSER_CONTEXTMENU_SHOWRESPONSE, 'Show server headers'); if DevTools.Visible then model.AddItem(MINIBROWSER_CONTEXTMENU_HIDEDEVTOOLS, 'Hide DevTools') else model.AddItem(MINIBROWSER_CONTEXTMENU_SHOWDEVTOOLS, 'Show DevTools'); if Chromium1.AudioMuted then model.AddItem(MINIBROWSER_CONTEXTMENU_UNMUTEAUDIO, 'Unmute audio') else model.AddItem(MINIBROWSER_CONTEXTMENU_MUTEAUDIO, 'Mute audio'); model.AddSeparator; if Chromium1.CanIncZoom then model.AddItem(MINIBROWSER_CONTEXTMENU_INCZOOM, 'Increment zoom'); if Chromium1.CanDecZoom then model.AddItem(MINIBROWSER_CONTEXTMENU_DECZOOM, 'Decrement zoom'); if Chromium1.CanResetZoom then model.AddItem(MINIBROWSER_CONTEXTMENU_RESETZOOM, 'Reset zoom'); end else model.AddItem(MINIBROWSER_CONTEXTMENU_SHOWDEVTOOLS, 'Show DevTools'); end; function PathToMyDocuments : string; var Allocator : IMalloc; Path : pchar; idList : PItemIDList; begin Result := ''; Path := nil; idList := nil; try if (SHGetMalloc(Allocator) = S_OK) then begin GetMem(Path, MAX_PATH); if (SHGetSpecialFolderLocation(0, CSIDL_PERSONAL, idList) = S_OK) and SHGetPathFromIDList(idList, Path) then Result := string(Path); end; finally if (Path <> nil) then FreeMem(Path); if (idList <> nil) then Allocator.Free(idList); end; end; procedure TMiniBrowserFrm.Chromium1BeforeDownload(Sender: TObject; const browser: ICefBrowser; const downloadItem: ICefDownloadItem; const suggestedName: ustring; const callback: ICefBeforeDownloadCallback); var TempMyDocuments, TempFullPath, TempName : string; begin if not(Chromium1.IsSameBrowser(browser)) or (downloadItem = nil) or not(downloadItem.IsValid) then exit; TempMyDocuments := PathToMyDocuments; if (length(suggestedName) > 0) then TempName := suggestedName else TempName := 'DownloadedFile'; if (length(TempMyDocuments) > 0) then TempFullPath := IncludeTrailingPathDelimiter(TempMyDocuments) + TempName else TempFullPath := TempName; callback.cont(TempFullPath, True); end; procedure TMiniBrowserFrm.Chromium1BeforeResourceLoad(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const callback: ICefCallback; out Result: TCefReturnValue); begin Result := RV_CONTINUE; if Chromium1.IsSameBrowser(browser) and (frame <> nil) and frame.IsMain and frame.IsValid then InspectRequest(request); end; procedure TMiniBrowserFrm.Chromium1CanDownload(Sender: TObject; const browser: ICefBrowser; const url, request_method: ustring; var aResult: Boolean); begin aResult := FAllowDownloads; end; procedure TMiniBrowserFrm.Chromium1CertificateError(Sender: TObject; const browser: ICefBrowser; certError: Integer; const requestUrl: ustring; const sslInfo: ICefSslInfo; const callback: ICefCallback; out Result: Boolean); begin CefDebugLog('Certificate error code:' + inttostr(certError) + ' - URL:' + requestUrl, CEF_LOG_SEVERITY_ERROR); Result := False; end; procedure TMiniBrowserFrm.Chromium1Close(Sender: TObject; const browser: ICefBrowser; var aAction : TCefCloseBrowserAction); begin if (browser <> nil) and (Chromium1.BrowserId = browser.Identifier) and (CEFWindowParent1 <> nil) then begin PostMessage(Handle, CEF_DESTROY, 0, 0); aAction := cbaDelay; end; end; procedure TMiniBrowserFrm.Chromium1ConsoleMessage(Sender: TObject; const browser: ICefBrowser; level: Cardinal; const message_, source: ustring; line: Integer; out Result: Boolean); begin if (message_ = 'GlobalCEFApp_OnUncaughtException') then begin inc(FJSException); StatusBar1.Panels[4].Text := 'JS exception: ' + inttostr(FJSException); end; end; procedure TMiniBrowserFrm.Chromium1ContextMenuCommand(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const params: ICefContextMenuParams; commandId: Integer; eventFlags: Cardinal; out Result: Boolean); var TempParam : WParam; TempInfo : TCefWindowInfo; TempClient : ICefClient; TempSettings : TCefBrowserSettings; begin Result := False; if Chromium1.IsSameBrowser(browser) then case commandId of MINIBROWSER_CONTEXTMENU_HIDEDEVTOOLS : PostMessage(Handle, MINIBROWSER_HIDEDEVTOOLS, 0, 0); MINIBROWSER_CONTEXTMENU_SHOWDEVTOOLS : begin TempParam := ((params.XCoord and $FFFF) shl 16) or (params.YCoord and $FFFF); PostMessage(Handle, MINIBROWSER_SHOWDEVTOOLS, TempParam, 0); end; MINIBROWSER_CONTEXTMENU_COPYALLTEXT : PostMessage(Handle, MINIBROWSER_COPYALLTEXT, 0, 0); MINIBROWSER_CONTEXTMENU_COPYHTML : PostMessage(Handle, MINIBROWSER_COPYHTML, 0, 0); MINIBROWSER_CONTEXTMENU_COPYFRAMEIDS : PostMessage(Handle, MINIBROWSER_COPYFRAMEIDS, 0, 0); MINIBROWSER_CONTEXTMENU_COPYFRAMENAMES : PostMessage(Handle, MINIBROWSER_COPYFRAMENAMES, 0, 0); MINIBROWSER_CONTEXTMENU_SHOWRESPONSE : PostMessage(Handle, MINIBROWSER_SHOWRESPONSE, 0, 0); MINIBROWSER_CONTEXTMENU_SAVEPREFERENCES : PostMessage(Handle, MINIBROWSER_SAVEPREFERENCES, 0, 0); MINIBROWSER_CONTEXTMENU_TAKESNAPSHOT : PostMessage(Handle, MINIBROWSER_TAKESNAPSHOT, 0, 0); MINIBROWSER_CONTEXTMENU_GETNAVIGATION : begin FNavigation.Clear; Chromium1.GetNavigationEntries(False); end; MINIBROWSER_CONTEXTMENU_JSWRITEDOC : if (frame <> nil) and frame.IsValid then frame.ExecuteJavaScript( 'var css = ' + chr(39) + '@page {size: A4; margin: 0;} @media print {html, body {width: 210mm; height: 297mm;}}' + chr(39) + '; ' + 'var style = document.createElement(' + chr(39) + 'style' + chr(39) + '); ' + 'style.type = ' + chr(39) + 'text/css' + chr(39) + '; ' + 'style.appendChild(document.createTextNode(css)); ' + 'document.head.appendChild(style);', 'about:blank', 0); MINIBROWSER_CONTEXTMENU_JSPRINTDOC : if (frame <> nil) and frame.IsValid then frame.ExecuteJavaScript('window.print();', 'about:blank', 0); MINIBROWSER_CONTEXTMENU_UNMUTEAUDIO : Chromium1.AudioMuted := False; MINIBROWSER_CONTEXTMENU_MUTEAUDIO : Chromium1.AudioMuted := True; MINIBROWSER_CONTEXTMENU_INCZOOM : Chromium1.IncZoomCommand; MINIBROWSER_CONTEXTMENU_DECZOOM : Chromium1.DecZoomCommand; MINIBROWSER_CONTEXTMENU_RESETZOOM : Chromium1.ResetZoomCommand; end else case commandId of MINIBROWSER_CONTEXTMENU_SHOWDEVTOOLS : try WindowInfoAsPopUp(TempInfo, browser.Host.WindowHandle, 'DevTools'); TempClient := TCustomClientHandler.Create(Chromium1, True); FillChar(TempSettings, SizeOf(TCefBrowserSettings), 0); browser.Host.ShowDevTools(@TempInfo, TempClient, @TempSettings, nil); finally TempClient := nil end; end; end; procedure TMiniBrowserFrm.Chromium1CookiesFlushed(Sender: TObject); begin PostMessage(Handle, MINIBROWSER_COOKIESFLUSHED, 0, 0); end; procedure TMiniBrowserFrm.Chromium1CursorChange(Sender: TObject; const browser: ICefBrowser; cursor_: TCefCursorHandle; cursorType: TCefCursorType; const customCursorInfo: PCefCursorInfo; var aResult: Boolean); begin aResult := True; CEFWindowParent1.Cursor := CefCursorToWindowsCursor(cursorType); end; procedure TMiniBrowserFrm.CookiesFlushedMsg(var aMessage : TMessage); begin showmessage('The cookies were flushed successfully'); end; procedure TMiniBrowserFrm.PrintPDFEndMsg(var aMessage : TMessage); begin if (aMessage.lParam <> 0) then showmessage('The PDF file was generated successfully') else showmessage('There was a problem generating the PDF file.'); end; procedure TMiniBrowserFrm.PreferencesAvailableMsg(var aMessage : TMessage); begin if (aMessage.lParam <> 0) then showmessage('The preferences file was generated successfully') else showmessage('There was a problem generating the preferences file.'); end; procedure TMiniBrowserFrm.Chromium1DownloadUpdated(Sender: TObject; const browser: ICefBrowser; const downloadItem: ICefDownloadItem; const callback: ICefDownloadItemCallback); var TempString : string; begin if not(Chromium1.IsSameBrowser(browser)) then exit; if downloadItem.IsComplete then ShowStatusText(downloadItem.FullPath + ' completed') else if downloadItem.IsCanceled then ShowStatusText(downloadItem.FullPath + ' canceled') else if downloadItem.IsInterrupted then ShowStatusText(downloadItem.FullPath + ' interrupted') else if downloadItem.IsInProgress then begin if (downloadItem.PercentComplete >= 0) then TempString := downloadItem.FullPath + ' : ' + inttostr(downloadItem.PercentComplete) + '%' else TempString := downloadItem.FullPath + ' : ' + inttostr(downloadItem.ReceivedBytes) + ' bytes received'; ShowStatusText(TempString); end; end; procedure TMiniBrowserFrm.Chromium1FileDialog( Sender : TObject; const browser : ICefBrowser; mode : Cardinal; const title : ustring; const defaultFilePath : ustring; const acceptFilters : TStrings; const callback : ICefFileDialogCallback; var Result : Boolean); begin Result := True; FFileDialogInfo.Mode := mode; FFileDialogInfo.Title := title; FFileDialogInfo.DefaultFilePath := defaultFilePath; FFileDialogInfo.Callback := callback; FFileDialogInfo.AcceptFilters := acceptFilters; PostMessage(Handle, MINIBROWSER_SHOWFILEDLG, 0, 0); end; function TMiniBrowserFrm.ShowOpenFileDialog(var aFilePaths : TStringList; aMultiple : boolean) : boolean; var TempDialog : TOpenDialog; TempOptions : TOpenOptions; begin Result := False; TempDialog := TOpenDialog.Create(Application.MainForm); TempDialog.Title := FFileDialogInfo.Title; TempDialog.InitialDir := FFileDialogInfo.DefaultFilePath; TempDialog.Filter := FFileDialogInfo.DialogFilter; TempOptions := TempDialog.Options; if aMultiple then include(TempOptions, ofAllowMultiSelect); TempDialog.Options := TempOptions; if TempDialog.Execute(Handle) then begin if aMultiple then aFilePaths.AddStrings(TempDialog.Files) else aFilePaths.Add(TempDialog.FileName); Result := True; end; FreeAndNil(TempDialog); end; function TMiniBrowserFrm.ShowOpenFolderDialog(var aFilePaths : TStringList) : boolean; var TempDirectorySelector : TDirectorySelectorFrm; begin Result := False; TempDirectorySelector := TDirectorySelectorFrm.Create(Application.MainForm); TempDirectorySelector.SelectedDir := FFileDialogInfo.DefaultFilePath; if (TempDirectorySelector.ShowModal = mrOk) then begin {$WARN SYMBOL_PLATFORM OFF} aFilePaths.Add(IncludeTrailingBackslash(TempDirectorySelector.SelectedDir)); {$WARN SYMBOL_PLATFORM ON} Result := True; end; FreeAndNil(TempDirectorySelector); end; function TMiniBrowserFrm.ShowSaveFileDialog(var aFilePaths : TStringList) : boolean; var TempDialog : TSaveDialog; TempOptions : TOpenOptions; begin Result := False; TempDialog := TSaveDialog.Create(Application.MainForm); TempDialog.Title := FFileDialogInfo.Title; TempDialog.Filter := FFileDialogInfo.DialogFilter; TempDialog.FileName := ExtractFileName(FFileDialogInfo.DefaultFilePath); TempDialog.InitialDir := ExtractFileDir(FFileDialogInfo.DefaultFilePath); TempOptions := TempDialog.Options; TempDialog.Options := TempOptions; if TempDialog.Execute(Handle) and (length(TempDialog.FileName) > 0) then begin aFilePaths.Add(TempDialog.FileName); Result := True; end; FreeAndNil(TempDialog); end; procedure TMiniBrowserFrm.ShowFileDialogMsg(var aMessage : TMessage); var TempResult : boolean; TempFilePaths : TStringList; begin TempFilePaths := TStringList.Create; case FFileDialogInfo.DialogType of dtOpen : TempResult := ShowOpenFileDialog(TempFilePaths, False); dtOpenMultiple : TempResult := ShowOpenFileDialog(TempFilePaths, True); dtOpenFolder : TempResult := ShowOpenFolderDialog(TempFilePaths); dtSave : TempResult := ShowSaveFileDialog(TempFilePaths); else TempResult := False; end; if TempResult then FFileDialogInfo.Callback.Cont(TempFilePaths) else FFileDialogInfo.Callback.Cancel; FFileDialogInfo.Clear; TempFilePaths.Free; end; procedure TMiniBrowserFrm.SelectCertificateMsg(var aMessage : TMessage); var TempSelector : TSelectCertForm; TempInfo : string; i : integer; begin if assigned(FCertificates) and assigned(FSelectCertCallback) then try TempSelector := TSelectCertForm.Create(self); i := 0; while (i < length(FCertificates)) do begin TempInfo := FCertificates[i].GetSubject.GetDisplayName + ' - ' + 'Valid until : ' + DateToStr(CefBaseTimeToDateTime(FCertificates[i].GetValidExpiry)); TempSelector.Certificates.Add(TempInfo); inc(i); end; TempSelector.ShowModal; if TempSelector.Selected >= 0 then FSelectCertCallback.Select(FCertificates[TempSelector.Selected]) else FSelectCertCallback.Select(nil); finally FSelectCertCallback := nil; DestroyCertificates; FreeAndNil(TempSelector); end; end; procedure TMiniBrowserFrm.Chromium1FullScreenModeChange(Sender: TObject; const browser: ICefBrowser; fullscreen: Boolean); begin if not(Chromium1.IsSameBrowser(browser)) then exit; // This event is executed in a CEF thread and this can cause problems when // you change the 'Enabled' and 'Visible' properties from VCL components. // It's recommended to change the 'Enabled' and 'Visible' properties // in the main application thread and not in a CEF thread. // It's much safer to use PostMessage to send a message to the main form with // all this information and update those properties in the procedure handling // that message. if fullscreen then begin NavControlPnl.Visible := False; StatusBar1.Visible := False; if (WindowState = wsMaximized) then WindowState := wsNormal; BorderIcons := []; BorderStyle := bsNone; WindowState := wsMaximized; end else begin BorderIcons := [biSystemMenu, biMinimize, biMaximize]; BorderStyle := bsSizeable; WindowState := wsNormal; NavControlPnl.Visible := True; StatusBar1.Visible := True; end; end; procedure TMiniBrowserFrm.Chromium1KeyEvent(Sender: TObject; const browser: ICefBrowser; const event: PCefKeyEvent; osEvent: TCefEventHandle; out Result: Boolean); var TempMsg : TMsg; begin Result := False; if (event <> nil) and (osEvent <> nil) then case osEvent.Message of WM_KEYUP : begin TempMsg := osEvent^; HandleKeyUp(TempMsg, Result); end; WM_KEYDOWN : begin TempMsg := osEvent^; HandleKeyDown(TempMsg, Result); end; end; end; procedure TMiniBrowserFrm.Allowdownloads1Click(Sender: TObject); begin FAllowDownloads := not(FAllowDownloads); end; procedure TMiniBrowserFrm.ApplicationEvents1Message(var Msg: tagMSG; var Handled: Boolean); begin case Msg.message of WM_KEYUP : HandleKeyUp(Msg, Handled); WM_KEYDOWN : HandleKeyDown(Msg, Handled); end; end; procedure TMiniBrowserFrm.HandleKeyUp(const aMsg : TMsg; var aHandled : boolean); var TempMessage : TMessage; TempKeyMsg : TWMKey; begin TempMessage.Msg := aMsg.message; TempMessage.wParam := aMsg.wParam; TempMessage.lParam := aMsg.lParam; TempKeyMsg := TWMKey(TempMessage); if (TempKeyMsg.CharCode = VK_F12) then begin aHandled := True; if DevTools.Visible then PostMessage(Handle, MINIBROWSER_HIDEDEVTOOLS, 0, 0) else PostMessage(Handle, MINIBROWSER_SHOWDEVTOOLS, 0, 0); end; end; procedure TMiniBrowserFrm.HandleKeyDown(const aMsg : TMsg; var aHandled : boolean); var TempMessage : TMessage; TempKeyMsg : TWMKey; begin TempMessage.Msg := aMsg.message; TempMessage.wParam := aMsg.wParam; TempMessage.lParam := aMsg.lParam; TempKeyMsg := TWMKey(TempMessage); if (TempKeyMsg.CharCode = VK_F12) then aHandled := True; end; procedure TMiniBrowserFrm.Chromium1LoadEnd(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; httpStatusCode: Integer); var TempHandle : THandle; begin if FClosing or (frame = nil) or not(frame.IsValid) or (browser = nil) then exit; if Chromium1.IsSameBrowser(browser) then begin if frame.IsMain then StatusBar1.Panels[1].Text := 'main frame loaded : ' + quotedstr(frame.name) else StatusBar1.Panels[1].Text := 'frame loaded : ' + quotedstr(frame.name); end else begin // This is a workaround for a focus issue in popup windows handled by CEF TempHandle := WinApi.Windows.GetWindow(Browser.Host.WindowHandle, GW_OWNER); if (TempHandle <> Handle) then WinApi.Windows.SetFocus(TempHandle); end; end; procedure TMiniBrowserFrm.Chromium1LoadError(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; errorCode: Integer; const errorText, failedUrl: ustring); var TempString : string; begin if (errorCode = ERR_ABORTED) then exit; TempString := '' + '

Failed to load URL ' + failedUrl + ' with error ' + errorText + ' (' + inttostr(errorCode) + ').

'; Chromium1.LoadString(TempString, frame); end; procedure TMiniBrowserFrm.Chromium1LoadingProgressChange(Sender: TObject; const browser: ICefBrowser; const progress: Double); begin StatusBar1.Panels[0].Text := 'Loading... ' + FloatToStrF(progress * 100, ffFixed, 3, 0) + '%'; end; procedure TMiniBrowserFrm.Chromium1LoadingStateChange(Sender: TObject; const browser: ICefBrowser; isLoading, canGoBack, canGoForward: Boolean); begin if not(Chromium1.IsSameBrowser(browser)) or FClosing then exit; // This event is executed in a CEF thread and this can cause problems when // you change the 'Enabled' and 'Visible' properties from VCL components. // It's recommended to change the 'Enabled' and 'Visible' properties // in the main application thread and not in a CEF thread. // It's much safer to use PostMessage to send a message to the main form with // all this information and update those properties in the procedure handling // that message. BackBtn.Enabled := canGoBack; ForwardBtn.Enabled := canGoForward; if isLoading then begin StatusBar1.Panels[0].Text := 'Loading...'; ReloadBtn.Enabled := False; StopBtn.Enabled := True; end else begin StatusBar1.Panels[0].Text := 'Finished'; ReloadBtn.Enabled := True; StopBtn.Enabled := False; end; end; procedure TMiniBrowserFrm.Chromium1MediaAccessChange(Sender: TObject; const browser: ICefBrowser; has_video_access, has_audio_access: Boolean); var TempText : string; begin // This event is executed in a CEF thread and this can cause problems when // you change the 'Enabled' and 'Visible' properties from VCL components. // It's recommended to change the 'Enabled' and 'Visible' properties // in the main application thread and not in a CEF thread. // It's much safer to use PostMessage to send a message to the main form with // all this information and update those properties in the procedure handling // that message. TempText := 'Video access : ' + BooltoStr(has_video_access, True) + ' - ' + 'Audio access : ' + BooltoStr(has_audio_access, True); StatusBar1.Panels[1].Text := TempText; end; procedure TMiniBrowserFrm.Chromium1NavigationVisitorResultAvailable(Sender: TObject; const entry: ICefNavigationEntry; current: Boolean; index, total: Integer; var aResult: Boolean); begin if (entry <> nil) and entry.IsValid then FNavigation.Add(entry.Url); if (index < pred(total)) then aResult := True else begin aResult := False; PostMessage(Handle, MINIBROWSER_SHOWNAVIGATION, 0, 0); end; end; procedure TMiniBrowserFrm.Chromium1PdfPrintFinished(Sender: TObject; aResultOK: Boolean); begin PostMessage(Handle, MINIBROWSER_PDFPRINT_END, 0, LPARAM(aResultOK)); end; procedure TMiniBrowserFrm.Chromium1PrefsAvailable(Sender: TObject; aResultOK: Boolean); begin PostMessage(Handle, MINIBROWSER_PREFS_AVLBL, 0, LPARAM(aResultOK)); end; procedure TMiniBrowserFrm.Chromium1PreKeyEvent(Sender: TObject; const browser: ICefBrowser; const event: PCefKeyEvent; osEvent: TCefEventHandle; out isKeyboardShortcut, Result: Boolean); begin Result := False; if (event <> nil) and (event.kind in [KEYEVENT_KEYDOWN, KEYEVENT_KEYUP]) and (event.windows_key_code = VK_F12) then isKeyboardShortcut := True; end; procedure TMiniBrowserFrm.Chromium1RenderCompMsg(Sender: TObject; var aMessage : TMessage; var aHandled: Boolean); begin if not(FClosing) and (aMessage.Msg = WM_MOUSEMOVE) then begin StatusBar1.Panels[2].Text := 'x : ' + inttostr(aMessage.lParam and $FFFF); StatusBar1.Panels[3].Text := 'y : ' + inttostr((aMessage.lParam and $FFFF0000) shr 16); end; end; procedure TMiniBrowserFrm.Chromium1RequestMediaAccessPermission(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const requesting_origin: ustring; requested_permissions: Cardinal; const callback: ICefMediaAccessCallback; var aResult: Boolean); begin aResult := True; FMediaAccessCallback := callback; FRequestingOrigin := requesting_origin; FRequestedPermissions := requested_permissions; PostMessage(Handle, MINIBROWSER_MEDIAACCESSRQST, 0, 0); end; procedure TMiniBrowserFrm.MediaAccessRequestMsg(var aMessage : TMessage); var TempMessage : string; TempPermissions : TStringList; begin TempPermissions := TStringList.Create; try if ((FRequestedPermissions and CEF_MEDIA_PERMISSION_DEVICE_AUDIO_CAPTURE) <> 0) then TempPermissions.Add('Device audio'); if ((FRequestedPermissions and CEF_MEDIA_PERMISSION_DEVICE_VIDEO_CAPTURE) <> 0) then TempPermissions.Add('Device video'); if ((FRequestedPermissions and CEF_MEDIA_PERMISSION_DESKTOP_AUDIO_CAPTURE) <> 0) then TempPermissions.Add('Desktop audio'); if ((FRequestedPermissions and CEF_MEDIA_PERMISSION_DESKTOP_VIDEO_CAPTURE) <> 0) then TempPermissions.Add('Desktop video'); if assigned(FMediaAccessCallback) and (TempPermissions.Count > 0) then begin TempMessage := FRequestingOrigin + ' is asking for permission to access : ' + CRLF + TempPermissions.Text + CRLF + 'Do you want allow it?'; if (MessageDlg(TempMessage, mtConfirmation, [mbYes, mbNo], 0, mbYes) = mrYes) then FMediaAccessCallback.cont(FRequestedPermissions) else FMediaAccessCallback.Cancel; end; finally TempPermissions.Free; FMediaAccessCallback := nil; end; end; procedure TMiniBrowserFrm.Chromium1ResolvedHostAvailable(Sender: TObject; result: Integer; const resolvedIps: TStrings); begin if (result = ERR_NONE) then showmessage('Resolved IPs : ' + resolvedIps.CommaText) else showmessage('There was a problem resolving the host.' + CRLF + 'Error code : ' + inttostr(result)); end; procedure TMiniBrowserFrm.InspectRequest(const aRequest : ICefRequest); var TempHeaderMap : ICefStringMultimap; i, j : integer; begin if (aRequest <> nil) then begin FRequest.Clear; TempHeaderMap := TCefStringMultimapOwn.Create; aRequest.GetHeaderMap(TempHeaderMap); i := 0; j := TempHeaderMap.Size; while (i < j) do begin FRequest.Add(TempHeaderMap.Key[i] + '=' + TempHeaderMap.Value[i]); inc(i); end; end; end; procedure TMiniBrowserFrm.InspectResponse(const aResponse : ICefResponse); var TempHeaderMap : ICefStringMultimap; i, j : integer; begin if (aResponse <> nil) then begin FResponse.Clear; TempHeaderMap := TCefStringMultimapOwn.Create; aResponse.GetHeaderMap(TempHeaderMap); i := 0; j := TempHeaderMap.Size; while (i < j) do begin FResponse.Add(TempHeaderMap.Key[i] + '=' + TempHeaderMap.Value[i]); inc(i); end; end; end; procedure TMiniBrowserFrm.Memoryinfo1Click(Sender: TObject); const BYTES_PER_MEGABYTE = 1024 * 1024; var TempMessage : string; begin TempMessage := 'Total memory used by this application : ' + inttostr(GlobalCEFApp.UsedMemory div BYTES_PER_MEGABYTE) + ' Mb' + CRLF + 'Total system memory : ' + inttostr(GlobalCEFApp.TotalSystemMemory div BYTES_PER_MEGABYTE) + ' Mb' + CRLF + 'Available physical memory : ' + inttostr(GlobalCEFApp.AvailableSystemMemory div BYTES_PER_MEGABYTE) + ' Mb' + CRLF + 'Memory load : ' + inttostr(GlobalCEFApp.SystemMemoryLoad) + ' %'; MessageDlg(TempMessage, mtInformation, [mbOK], 0); end; procedure TMiniBrowserFrm.Toggleaudio1Click(Sender: TObject); begin Chromium1.ToggleAudioMuted; end; procedure TMiniBrowserFrm.Chromium1ResourceResponse(Sender: TObject; const browser: ICefBrowser; const frame: ICefFrame; const request: ICefRequest; const response: ICefResponse; out Result: Boolean); begin Result := False; if Chromium1.IsSameBrowser(browser) and (frame <> nil) and frame.IsMain and frame.IsValid then InspectResponse(response); end; procedure TMiniBrowserFrm.ShowStatusText(const aText : string); begin if not(FClosing) then StatusBar1.Panels[1].Text := aText; end; procedure TMiniBrowserFrm.Simulatekeyboardpresses1Click(Sender: TObject); const SIMULATED_KEY_PRESSES = 'QWERTY'; var i : integer; TempKeyEvent : TCefKeyEvent; begin // This procedure is extremely simplified. // Use the SimpleOSRBrowser demo to log the real TCefKeyEvent values // if you use anything different than uppercase letters. for i := 1 to length(SIMULATED_KEY_PRESSES) do begin // WM_KEYDOWN TempKeyEvent.kind := KEYEVENT_RAWKEYDOWN; TempKeyEvent.modifiers := 0; TempKeyEvent.windows_key_code := ord(SIMULATED_KEY_PRESSES[i]); TempKeyEvent.native_key_code := 0; TempKeyEvent.is_system_key := ord(False); TempKeyEvent.character := #0; TempKeyEvent.unmodified_character := #0; TempKeyEvent.focus_on_editable_field := ord(False); Chromium1.SendKeyEvent(@TempKeyEvent); // WM_CHAR TempKeyEvent.kind := KEYEVENT_CHAR; Chromium1.SendKeyEvent(@TempKeyEvent); // WM_KEYUP TempKeyEvent.kind := KEYEVENT_KEYUP; Chromium1.SendKeyEvent(@TempKeyEvent); end; end; procedure TMiniBrowserFrm.StopBtnClick(Sender: TObject); begin Chromium1.StopLoad; end; procedure TMiniBrowserFrm.Chromium1SelectClientCertificate(Sender: TObject; const browser: ICefBrowser; isProxy: Boolean; const host: ustring; port: Integer; certificatesCount: NativeUInt; const certificates: TCefX509CertificateArray; const callback: ICefSelectClientCertificateCallback; var aResult: Boolean); var i : integer; begin if assigned(callback) and assigned(certificates) and (length(certificates) > 0) then begin aResult := True; FSelectCertCallback := callback; SetLength(FCertificates, length(certificates)); for i := 0 to pred(length(certificates)) do FCertificates[i] := certificates[i]; PostMessage(Handle, MINIBROWSER_SELECTCERT, 0, 0); end else aResult := False; end; procedure TMiniBrowserFrm.Chromium1StatusMessage(Sender: TObject; const browser: ICefBrowser; const value: ustring); begin if Chromium1.IsSameBrowser(browser) then ShowStatusText(value); end; procedure TMiniBrowserFrm.Chromium1TextResultAvailable(Sender: TObject; const aText: ustring); begin clipboard.AsText := aText; end; procedure TMiniBrowserFrm.Chromium1TitleChange(Sender: TObject; const browser: ICefBrowser; const title: ustring); begin if not(Chromium1.IsSameBrowser(browser)) then exit; if (title <> '') then caption := 'MiniBrowser - ' + title else caption := 'MiniBrowser'; end; procedure TMiniBrowserFrm.Chromium1ZoomPctAvailable(Sender: TObject; const aZoomPct: Double); begin ShowStatusText('Zoom : ' + floattostr(aZoomPct) + '%'); end; procedure TMiniBrowserFrm.ClearallstorageforcurrentURL1Click(Sender: TObject); begin Chromium1.ClearDataForOrigin(URLCbx.Text); end; procedure TMiniBrowserFrm.Clearcache1Click(Sender: TObject); begin Chromium1.ClearCache; end; procedure TMiniBrowserFrm.FindText1Click(Sender: TObject); begin FindFrm.Show; end; procedure TMiniBrowserFrm.Flushcookies1Click(Sender: TObject); begin if not(Chromium1.FlushCookieStore(False)) then showmessage('There was a problem flushing the cookies.'); end; procedure TMiniBrowserFrm.FormCloseQuery(Sender: TObject; var CanClose: Boolean); begin CanClose := FCanClose; if not(FClosing) then begin FClosing := True; Visible := False; if DevTools.Visible then HideDevTools; // if TChromium.MultiBrowserMode is enabled then we have to close all // stored browsers and not only the main browser. Chromium1.CloseAllBrowsers; // Workaround for the missing TChormium.OnClose event when "Chrome runtime" is enabled. if GlobalCEFApp.ChromeRuntime then CEFWindowParent1.Free; end; end; procedure TMiniBrowserFrm.FormCreate(Sender: TObject); begin FCanClose := False; FClosing := False; FResponse := TStringList.Create; FRequest := TStringList.Create; FNavigation := TStringList.Create; FSelectCertCallback := nil; FMediaAccessCallback := nil; FCertificates := nil; FPendingMsgID := 0; FAllowDownloads := True; // Windows may show this text message while shutting down the operating system FShutdownReason := 'MiniBrowser closing...'; FHasShutdownReason := ShutdownBlockReasonCreate(Application.Handle, @FShutdownReason[1]); FFileDialogInfo := TCEFFileDialogInfo.Create; // The MultiBrowserMode store all the browser references in TChromium. // The first browser reference is the browser in the main form. // When MiniBrowser allows CEF to create child popup browsers it will also // store their reference inside TChromium and you can use all the TChromium's // methods and properties to manipulate those browsers. // To do that call TChromium.SelectBrowser with the browser ID that will be // used when you call any method or property in TChromium. Chromium1.MultiBrowserMode := True; Chromium1.DefaultURL := MINIBROWSER_HOMEPAGE; end; procedure TMiniBrowserFrm.FormDestroy(Sender: TObject); begin if FHasShutdownReason then ShutdownBlockReasonDestroy(Application.Handle); DestroyCertificates; FSelectCertCallback := nil; FMediaAccessCallback := nil; FResponse.Free; FRequest.Free; FNavigation.Free; FFileDialogInfo.Free; end; procedure TMiniBrowserFrm.FormShow(Sender: TObject); begin ShowStatusText('Initializing browser. Please wait...'); // WebRTC's IP leaking can lowered/avoided by setting these preferences // To test this go to https://www.browserleaks.com/webrtc Chromium1.WebRTCIPHandlingPolicy := hpDisableNonProxiedUDP; Chromium1.WebRTCMultipleRoutes := STATE_DISABLED; Chromium1.WebRTCNonproxiedUDP := STATE_DISABLED; // 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 TMiniBrowserFrm.Timer1Timer(Sender: TObject); begin Timer1.Enabled := False; if not(Chromium1.CreateBrowser(CEFWindowParent1, '')) and not(Chromium1.Initialized) then Timer1.Enabled := True; end; procedure TMiniBrowserFrm.Useragent1Click(Sender: TObject); var TempOldUA, TempNewUA : string; begin TempOldUA := GetDefaultCEFUserAgent; TempNewUA := inputbox('MiniBrowser demo', 'Set new user agent string', TempOldUA); if (length(TempNewUA) > 0) and (TempOldUA <> TempNewUA) then Chromium1.SetUserAgentOverride(TempNewUA); end; procedure TMiniBrowserFrm.BrowserCreatedMsg(var aMessage : TMessage); begin CEFWindowParent1.UpdateSize; NavControlPnl.Enabled := True; end; procedure TMiniBrowserFrm.BrowserDestroyMsg(var aMessage : TMessage); begin FreeAndNil(CEFWindowParent1); end; procedure TMiniBrowserFrm.Acceptlanguage1Click(Sender: TObject); var TempLanguageList : ustring; begin TempLanguageList := Chromium1.AcceptLanguageList; if (length(TempLanguageList) = 0) then TempLanguageList := GlobalCEFApp.AcceptLanguageList; Chromium1.AcceptLanguageList := InputBox('Language', 'Accept language list', TempLanguageList); end; procedure TMiniBrowserFrm.AddURL(const aURL : string); begin if (URLCbx.Items.IndexOf(aURL) < 0) then URLCbx.Items.Add(aURL); URLCbx.Text := aURL; end; procedure TMiniBrowserFrm.DestroyCertificates; var i : integer; begin if assigned(FCertificates) then begin i := 0; while (i < length(FCertificates)) do begin FCertificates[i] := nil; inc(i); end; Finalize(FCertificates); FCertificates := nil; end; end; procedure TMiniBrowserFrm.akescreenshot1Click(Sender: TObject); begin FPendingMsgID := DEVTOOLS_SCREENSHOT_MSGID; Chromium1.ExecuteDevToolsMethod(0, 'Page.captureScreenshot', nil); end; procedure TMiniBrowserFrm.Chromium1DevToolsMethodResult( Sender : TObject; const browser : ICefBrowser; message_id : Integer; success : Boolean; const result : ICefValue); var TempDict : ICefDictionaryValue; TempValue : ICefValue; TempResult : WPARAM; TempCode : integer; TempMessage : string; begin FDevToolsMsgValue := ''; TempResult := 0; if success then begin TempResult := 1; FDevToolsMsgValue := ''; if (result <> nil) then begin TempDict := result.GetDictionary; if (TempDict <> nil) and (TempDict.GetSize > 0) then begin TempValue := TempDict.GetValue('data'); if (TempValue <> nil) and (TempValue.GetType = VTYPE_STRING) then FDevToolsMsgValue := TempValue.GetString; end; end; end else if (result <> nil) then begin TempDict := result.GetDictionary; if (TempDict <> nil) then begin TempCode := 0; TempMessage := ''; TempValue := TempDict.GetValue('code'); if (TempValue <> nil) and (TempValue.GetType = VTYPE_INT) then TempCode := TempValue.GetInt; TempValue := TempDict.GetValue('message'); if (TempValue <> nil) and (TempValue.GetType = VTYPE_STRING) then TempMessage := TempValue.GetString; if (length(TempMessage) > 0) then FDevToolsMsgValue := 'DevTools Error (' + inttostr(TempCode) + ') : ' + quotedstr(TempMessage); end; end; PostMessage(Handle, MINIBROWSER_DTDATA_AVLBL, TempResult, 0); end; procedure TMiniBrowserFrm.DevToolsDataAvailableMsg(var aMessage : TMessage); var TempData : TBytes; TempFile : TFileStream; TempLen : integer; begin if (aMessage.WParam <> 0) then begin if (length(FDevToolsMsgValue) > 0) then begin TempData := nil; case FPendingMsgID of DEVTOOLS_SCREENSHOT_MSGID : begin SaveDialog1.DefaultExt := 'png'; SaveDialog1.Filter := 'PNG files (*.png)|*.PNG'; {$IFDEF DELPHI21_UP} // TO-DO: TNetEncoding was a new feature in Delphi XE7. Replace // TNetEncoding.Base64.DecodeStringToBytes with Soap.EncdDecd.DecodeBase64 for older Delphi versions TempData := TNetEncoding.Base64.DecodeStringToBytes(FDevToolsMsgValue); {$ENDIF} end; DEVTOOLS_MHTML_MSGID : begin SaveDialog1.DefaultExt := 'mhtml'; SaveDialog1.Filter := 'MHTML files (*.mhtml)|*.MHTML'; TempData := BytesOf(FDevToolsMsgValue); end; else begin SaveDialog1.DefaultExt := ''; SaveDialog1.Filter := 'All files (*.*)|*.*'; {$IFDEF DELPHI21_UP} // TO-DO: TNetEncoding was a new feature in Delphi XE7. Replace // TNetEncoding.Base64.DecodeStringToBytes with Soap.EncdDecd.DecodeBase64 for older Delphi versions TempData := TNetEncoding.Base64.DecodeStringToBytes(FDevToolsMsgValue); {$ENDIF} end; end; FPendingMsgID := 0; TempLen := length(TempData); if (TempLen > 0) then begin TempFile := nil; if SaveDialog1.Execute then try try TempFile := TFileStream.Create(SaveDialog1.FileName, fmCreate); TempFile.WriteBuffer(TempData[0], TempLen); showmessage('File saved successfully'); except showmessage('There was an error saving the file'); end; finally if (TempFile <> nil) then TempFile.Free; end; end else showmessage('There was an error decoding the data'); end else showmessage('DevTools method executed successfully!'); end else if (length(FDevToolsMsgValue) > 0) then showmessage(FDevToolsMsgValue) else showmessage('There was an error in the DevTools method'); end; procedure TMiniBrowserFrm.ShowDevToolsMsg(var aMessage : TMessage); var TempPoint : TPoint; begin TempPoint.x := (aMessage.wParam shr 16) and $FFFF; TempPoint.y := aMessage.wParam and $FFFF; ShowDevTools(TempPoint); end; procedure TMiniBrowserFrm.HideDevToolsMsg(var aMessage : TMessage); begin HideDevTools; Chromium1.SetFocus(True); end; procedure TMiniBrowserFrm.Inczoom1Click(Sender: TObject); begin Chromium1.IncZoomStep; end; procedure TMiniBrowserFrm.Openfile1Click(Sender: TObject); begin OpenDialog1.Filter := 'Any file (*.*)|*.*'; if OpenDialog1.Execute then begin // This is a quick solution to load files. The file URL should be properly encoded. Chromium1.LoadURL('file:///' + OpenDialog1.FileName); end; end; procedure TMiniBrowserFrm.OpenfilewithaDAT1Click(Sender: TObject); var TempFile : TMemoryStream; begin TempFile := nil; try try OpenDialog1.Filter := 'HTML files (*.html)|*.HTML;*.HTM|PDF files (*.pdf)|*.PDF'; if OpenDialog1.Execute then begin // Use TByteStream instead of TMemoryStream if your Delphi version supports it. TempFile := TMemoryStream.Create; TempFile.LoadFromFile(OpenDialog1.FileName); if (OpenDialog1.FilterIndex = 1) then Chromium1.LoadResource(TempFile, 'text/html', 'utf-8') else Chromium1.LoadResource(TempFile, 'application/pdf', 'utf-8'); end; except on e : exception do if CustomExceptionHandler('TMiniBrowserFrm.OpenfilewithaDAT1Click', e) then raise; end; finally if (TempFile <> nil) then FreeAndNil(TempFile); end; end; procedure TMiniBrowserFrm.PopupMenu1Popup(Sender: TObject); begin if DevTools.Visible then DevTools1.Caption := 'Hide DevTools' else DevTools1.Caption := 'Show DevTools'; Allowdownloads1.Checked := FAllowDownloads; end; procedure TMiniBrowserFrm.Preferences1Click(Sender: TObject); begin case Chromium1.ProxyScheme of psSOCKS4 : PreferencesFrm.ProxySchemeCb.ItemIndex := 1; psSOCKS5 : PreferencesFrm.ProxySchemeCb.ItemIndex := 2; else PreferencesFrm.ProxySchemeCb.ItemIndex := 0; end; PreferencesFrm.ProxyTypeCbx.ItemIndex := Chromium1.ProxyType; PreferencesFrm.ProxyServerEdt.Text := Chromium1.ProxyServer; PreferencesFrm.ProxyPortEdt.Text := inttostr(Chromium1.ProxyPort); PreferencesFrm.ProxyUsernameEdt.Text := Chromium1.ProxyUsername; PreferencesFrm.ProxyPasswordEdt.Text := Chromium1.ProxyPassword; PreferencesFrm.ProxyScriptURLEdt.Text := Chromium1.ProxyScriptURL; PreferencesFrm.ProxyByPassListEdt.Text := Chromium1.ProxyByPassList; PreferencesFrm.HeaderNameEdt.Text := Chromium1.CustomHeaderName; PreferencesFrm.HeaderValueEdt.Text := Chromium1.CustomHeaderValue; PreferencesFrm.MaxConnectionsPerProxyEdt.Value := Chromium1.MaxConnectionsPerProxy; if (PreferencesFrm.ShowModal = mrOk) then begin Chromium1.ProxyType := PreferencesFrm.ProxyTypeCbx.ItemIndex; Chromium1.ProxyServer := PreferencesFrm.ProxyServerEdt.Text; Chromium1.ProxyPort := strtoint(PreferencesFrm.ProxyPortEdt.Text); Chromium1.ProxyUsername := PreferencesFrm.ProxyUsernameEdt.Text; Chromium1.ProxyPassword := PreferencesFrm.ProxyPasswordEdt.Text; Chromium1.ProxyScriptURL := PreferencesFrm.ProxyScriptURLEdt.Text; Chromium1.ProxyByPassList := PreferencesFrm.ProxyByPassListEdt.Text; Chromium1.CustomHeaderName := PreferencesFrm.HeaderNameEdt.Text; Chromium1.CustomHeaderValue := PreferencesFrm.HeaderValueEdt.Text; Chromium1.MaxConnectionsPerProxy := PreferencesFrm.MaxConnectionsPerProxyEdt.Value; case PreferencesFrm.ProxySchemeCb.ItemIndex of 1 : Chromium1.ProxyScheme := psSOCKS4; 2 : Chromium1.ProxyScheme := psSOCKS5; else Chromium1.ProxyScheme := psHTTP; end; Chromium1.UpdatePreferences; end; end; procedure TMiniBrowserFrm.Print1Click(Sender: TObject); begin Chromium1.Print; end; procedure TMiniBrowserFrm.PrintinPDF1Click(Sender: TObject); begin SaveDialog1.DefaultExt := 'pdf'; SaveDialog1.Filter := 'PDF files (*.pdf)|*.PDF'; if SaveDialog1.Execute and (length(SaveDialog1.FileName) > 0) then Chromium1.PrintToPDF(SaveDialog1.FileName); end; procedure TMiniBrowserFrm.ConfigBtnClick(Sender: TObject); var TempPoint : TPoint; begin TempPoint.x := ConfigBtn.left; TempPoint.y := ConfigBtn.top + ConfigBtn.Height; TempPoint := ConfigPnl.ClientToScreen(TempPoint); PopupMenu1.Popup(TempPoint.x, TempPoint.y); end; procedure TMiniBrowserFrm.CopyHTMLMsg(var aMessage : TMessage); begin Chromium1.RetrieveHTML; end; procedure TMiniBrowserFrm.CopyAllTextMsg(var aMessage : TMessage); var TempName : string; begin TempName := InputBox('Frame name', 'Type the fame name or leave it blank to select the main frame :', ''); Chromium1.RetrieveText(TempName); end; procedure TMiniBrowserFrm.CopyFramesIDsMsg(var aMessage : TMessage); var i : NativeUInt; TempCount : NativeUInt; TempArray : TCefFrameIdentifierArray; TempString : string; begin TempCount := Chromium1.FrameCount; if Chromium1.GetFrameIdentifiers(TempCount, TempArray) then begin TempString := ''; i := 0; while (i < TempCount) do begin TempString := TempString + inttostr(TempArray[i]) + CRLF; inc(i); end; clipboard.AsText := TempString; end; end; procedure TMiniBrowserFrm.CopyFramesNamesMsg(var aMessage : TMessage); var TempSL : TStringList; begin try TempSL := TStringList.Create; if Chromium1.GetFrameNames(TStrings(TempSL)) then clipboard.AsText := TempSL.Text; finally FreeAndNil(TempSL); end; end; procedure TMiniBrowserFrm.ShowResponseMsg(var aMessage : TMessage); begin SimpleTextViewerFrm.Memo1.Lines.Clear; SimpleTextViewerFrm.Memo1.Lines.Add('--------------------------'); SimpleTextViewerFrm.Memo1.Lines.Add('Request headers : '); SimpleTextViewerFrm.Memo1.Lines.Add('--------------------------'); if (FRequest <> nil) then SimpleTextViewerFrm.Memo1.Lines.AddStrings(FRequest); SimpleTextViewerFrm.Memo1.Lines.Add(''); SimpleTextViewerFrm.Memo1.Lines.Add('--------------------------'); SimpleTextViewerFrm.Memo1.Lines.Add('Response headers : '); SimpleTextViewerFrm.Memo1.Lines.Add('--------------------------'); if (FResponse <> nil) then SimpleTextViewerFrm.Memo1.Lines.AddStrings(FResponse); SimpleTextViewerFrm.ShowModal; end; procedure TMiniBrowserFrm.ShowNavigationMsg(var aMessage : TMessage); begin SimpleTextViewerFrm.Memo1.Lines.Clear; SimpleTextViewerFrm.Memo1.Lines.AddStrings(FNavigation); SimpleTextViewerFrm.ShowModal; end; procedure TMiniBrowserFrm.SaveasMHTML1Click(Sender: TObject); var TempParams : ICefDictionaryValue; begin try TempParams := TCefDictionaryValueRef.New; TempParams.SetString('format', 'mhtml'); FPendingMsgID := DEVTOOLS_MHTML_MSGID; Chromium1.ExecuteDevToolsMethod(0, 'Page.captureSnapshot', TempParams); finally TempParams := nil; end; end; procedure TMiniBrowserFrm.SavePreferencesMsg(var aMessage : TMessage); begin SaveDialog1.DefaultExt := 'txt'; SaveDialog1.Filter := 'Text files (*.txt)|*.TXT'; if SaveDialog1.Execute and (length(SaveDialog1.FileName) > 0) then Chromium1.SavePreferences(SaveDialog1.FileName); end; procedure TMiniBrowserFrm.TakeSnapshotMsg(var aMessage : TMessage); var TempBitmap : TBitmap; begin TempBitmap := nil; try SaveDialog1.DefaultExt := 'bmp'; SaveDialog1.Filter := 'Bitmap files (*.bmp)|*.BMP'; if SaveDialog1.Execute and (length(SaveDialog1.FileName) > 0) and Chromium1.TakeSnapshot(TempBitmap) then TempBitmap.SaveToFile(SaveDialog1.FileName); finally if (TempBitmap <> nil) then FreeAndNil(TempBitmap); end; end; procedure TMiniBrowserFrm.WMMove(var aMessage : TWMMove); begin inherited; if (Chromium1 <> nil) then Chromium1.NotifyMoveOrResizeStarted; end; procedure TMiniBrowserFrm.WMMoving(var aMessage : TMessage); begin inherited; if (Chromium1 <> nil) then Chromium1.NotifyMoveOrResizeStarted; end; procedure TMiniBrowserFrm.WMEnterMenuLoop(var aMessage: TMessage); begin inherited; if (aMessage.wParam = 0) and (GlobalCEFApp <> nil) then GlobalCEFApp.OsmodalLoop := True; end; procedure TMiniBrowserFrm.WMExitMenuLoop(var aMessage: TMessage); begin inherited; if (aMessage.wParam = 0) and (GlobalCEFApp <> nil) then GlobalCEFApp.OsmodalLoop := False; end; procedure TMiniBrowserFrm.WMQueryEndSession(var aMessage: TWMQueryEndSession); begin // We return False (0) to close the browser correctly. // Windows may show the FShutdownReason message that we created in // TForm.OnCreate if the shutdown takes too much time. // CEF4Delphi sets the subprocesses to receive the WM_QUERYENDSESSION // message after the main browser process with a // SetProcessShutdownParameters call aMessage.Result := 0; PostMessage(Handle, WM_CLOSE, 0, 0); end; procedure TMiniBrowserFrm.Deczoom1Click(Sender: TObject); begin Chromium1.DecZoomStep; end; procedure TMiniBrowserFrm.DevTools1Click(Sender: TObject); begin if DevTools.Visible then HideDevTools else ShowDevTools; end; procedure TMiniBrowserFrm.Downloadimage1Click(Sender: TObject); var TempURL : string; begin TempURL := InputBox('Download Image', 'URL:', 'https://www.briskbard.com/images/logo.png'); if (length(TempURL) > 0) then Chromium1.DownloadImage(TempURL, False, 0, False); end; procedure TMiniBrowserFrm.Chromium1DownloadImageFinished( Sender : TObject; const imageUrl : ustring; httpStatusCode : Integer; const image : ICefImage); var TempBinValue : ICefBinaryValue; TempWidth : integer; TempHeight : integer; TempBuffer : TBytes; TempPointer : pointer; TempSize : NativeUInt; TempStream : TFileStream; TempParts : TUrlParts; i : integer; begin TempStream := nil; try try if (httpStatusCode = 200) and (image <> nil) and not(image.IsEmpty) then begin TempBinValue := image.GetAsPng(1, True, TempWidth, TempHeight); if (TempBinValue <> nil) and TempBinValue.IsValid then begin TempSize := TempBinValue.Size; SaveDialog1.DefaultExt := 'png'; SaveDialog1.Filter := 'PNG files (*.png)|*.PNG'; CefParseUrl(imageUrl, TempParts); i := LastDelimiter('/', TempParts.path); // TODO : The file name should be sanitized. if (i > 0) then SaveDialog1.FileName := copy(TempParts.path, succ(i), length(TempParts.path)) else SaveDialog1.FileName := TempParts.path; if (TempSize > 0) and SaveDialog1.Execute and (length(SaveDialog1.FileName) > 0) then begin SetLength(TempBuffer, TempSize); TempPointer := @TempBuffer[0]; TempSize := TempBinValue.GetData(TempPointer, TempSize, 0); if (TempSize > 0) then begin TempStream := TFileStream.Create(SaveDialog1.FileName, fmCreate); TempStream.Write(TempBuffer, TempSize); end; end; end; end; except on e : exception do if CustomExceptionHandler('Chromium1DownloadImageFinishedEvent', e) then raise; end; finally if (TempStream <> nil) then FreeAndNil(TempStream); SetLength(TempBuffer, 0); end; end; procedure TMiniBrowserFrm.ShowDevTools(aPoint : TPoint); begin Splitter1.Visible := True; DevTools.Visible := True; DevTools.Width := Width div 4; Chromium1.ShowDevTools(aPoint, DevTools); end; procedure TMiniBrowserFrm.ShowDevTools; var TempPoint : TPoint; begin TempPoint.x := low(integer); TempPoint.y := low(integer); ShowDevTools(TempPoint); end; procedure TMiniBrowserFrm.HideDevTools; begin Chromium1.CloseDevTools(DevTools); Splitter1.Visible := False; DevTools.Visible := False; DevTools.Width := 0; end; end.