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CEF4Delphi/source/uCEFMiscFunctions.pas
salvadordf a3b19dd290 Added IsCEFSubprocess 
Added more XML documentation.
2024-01-15 17:11:40 +01:00

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unit uCEFMiscFunctions;
{$I cef.inc}
{$IFDEF FPC}
{$MODE OBJFPC}{$H+}
{$IFDEF MACOSX}
{$ModeSwitch objectivec1}
{$ENDIF}
{$ENDIF}
{$IFNDEF TARGET_64BITS}{$ALIGN ON}{$ENDIF}
{$MINENUMSIZE 4}
{$IFNDEF FPC}{$IFNDEF DELPHI12_UP}
// Workaround for "Internal error" in old Delphi versions caused by uint64 handling
{$R-}
{$ENDIF}{$ENDIF}
interface
uses
{$IFDEF DELPHI16_UP}
{$IFDEF MSWINDOWS}
WinApi.Windows, WinApi.ActiveX, Winapi.ShellApi, System.Win.Registry,
{$ELSE}
{$IFDEF MACOSX}Macapi.Foundation, FMX.Helpers.Mac, Macapi.AppKit,{$ENDIF}
{$ENDIF}
{$IFDEF FMX}FMX.Types, FMX.Platform,{$ENDIF} System.Types, System.IOUtils,
System.Classes, System.SysUtils, System.UITypes, System.Math,
{$ELSE}
{$IFDEF MSWINDOWS}Windows, ActiveX, ShellApi, Registry,{$ENDIF}
{$IFDEF DELPHI14_UP}Types, IOUtils,{$ENDIF} Classes, SysUtils, Math,
{$IFDEF FPC}LCLType, LazFileUtils,{$IFNDEF MSWINDOWS}InterfaceBase, Forms,{$ENDIF}{$ENDIF}
{$IFDEF LINUX}{$IFDEF FPC}
ctypes, keysym, xf86keysym, x, xlib,
{$IFDEF LCLGTK2}gtk2, glib2, gdk2, gtk2proc, gtk2int, Gtk2Def, gdk2x, Gtk2Extra,{$ENDIF}
{$IFDEF LCLGTK3}LazGdk3, LazGtk3, LazGLib2, gtk3widgets,{$ENDIF}
{$ENDIF}{$ENDIF}
{$ENDIF}
uCEFTypes, uCEFInterfaces, uCEFLibFunctions, uCEFResourceHandler,
{$IFDEF LINUX}{$IFDEF FPC}uCEFLinuxFunctions,{$ENDIF}{$ENDIF} uCEFConstants;
const
Kernel32DLL = 'kernel32.dll';
SHLWAPIDLL = 'shlwapi.dll';
NTDLL = 'ntdll.dll';
User32DLL = 'User32.dll';
Netapi32DLL = 'Netapi32.dll';
/// <summary>Return the alpha byte from a cef_color_t value.</summary>
function CefColorGetA(color: TCefColor): Byte;
/// <summary>Return the red byte from a cef_color_t value.</summary>
function CefColorGetR(color: TCefColor): byte;
/// <summary>Return the green byte from a cef_color_t value.</summary>
function CefColorGetG(color: TCefColor): Byte;
/// <summary>Return the blue byte from a cef_color_t value.</summary>
function CefColorGetB(color: TCefColor): Byte;
/// <summary>Return an cef_color_t value with the specified byte component values.</summary>
function CefColorSetARGB(a, r, g, b: Byte): TCefColor;
/// <summary>Return an int64_t value with the specified low and high int32_t component values.</summary>
function CefInt64Set(int32_low, int32_high: Integer): Int64;
/// <summary>Return the low int32_t value from an int64_t value.</summary>
function CefInt64GetLow(const int64_val: Int64): Integer;
/// <summary>Return the high int32_t value from an int64_t value.</summary>
function CefInt64GetHigh(const int64_val: Int64): Integer;
function CefGetObject(ptr: Pointer): TObject; {$IFNDEF CEF4DELHI_ALLOC_DEBUG}{$IFDEF SUPPORTS_INLINE}inline;{$ENDIF}{$ENDIF}
function CefGetData(const i: ICefBaseRefCounted): Pointer; {$IFDEF SUPPORTS_INLINE}inline;{$ENDIF}
function CefStringAlloc(const str: ustring): TCefString;
function CefStringClearAndGet(str: PCefString): ustring;
/// <summary>Converts ustring to TCefString.</summary>
function CefString(const str: ustring): TCefString; overload;
/// <summary>Converts PCefString to ustring.</summary>
function CefString(const str: PCefString): ustring; overload;
function CefUserFreeString(const str: ustring): PCefStringUserFree;
procedure CefStringFree(const str: PCefString);
function CefStringFreeAndGet(const str: PCefStringUserFree): ustring;
procedure CefStringSet(const str: PCefString; const value: ustring);
procedure CefStringInitialize(const aCefString : PCefString); {$IFDEF SUPPORTS_INLINE}inline;{$ENDIF}
/// <summary>
/// Register a new V8 extension with the specified JavaScript extension code and
/// handler. Functions implemented by the handler are prototyped using the
/// keyword 'native'. The calling of a native function is restricted to the
/// scope in which the prototype of the native function is defined. This
/// function may only be called on the render process main thread.
///
/// Example JavaScript extension code: <pre>
/// // create the 'example' global object if it doesn't already exist.
/// if (!example)
/// example = {};
/// // create the 'example.test' global object if it doesn't already exist.
/// if (!example.test)
/// example.test = {};
/// (function() {
/// // Define the function 'example.test.myfunction'.
/// example.test.myfunction = function() {
/// // Call CefV8Handler::Execute() with the function name 'MyFunction'
/// // and no arguments.
/// native function MyFunction();
/// return MyFunction();
/// };
/// // Define the getter function for parameter 'example.test.myparam'.
/// example.test.__defineGetter__('myparam', function() {
/// // Call CefV8Handler::Execute() with the function name 'GetMyParam'
/// // and no arguments.
/// native function GetMyParam();
/// return GetMyParam();
/// });
/// // Define the setter function for parameter 'example.test.myparam'.
/// example.test.__defineSetter__('myparam', function(b) {
/// // Call CefV8Handler::Execute() with the function name 'SetMyParam'
/// // and a single argument.
/// native function SetMyParam();
/// if(b) SetMyParam(b);
/// });
///
/// // Extension definitions can also contain normal JavaScript variables
/// // and functions.
/// var myint = 0;
/// example.test.increment = function() {
/// myint += 1;
/// return myint;
/// };
/// })();
/// </pre>
///
/// Example usage in the page: <pre>
/// // Call the function.
/// example.test.myfunction();
/// // Set the parameter.
/// example.test.myparam = value;
/// // Get the parameter.
/// value = example.test.myparam;
/// // Call another function.
/// example.test.increment();
/// </pre>
/// </summary>
function CefRegisterExtension(const name, code: ustring; const Handler: ICefv8Handler): Boolean;
/// <summary>
/// Post a task for execution on the specified thread. Equivalent to using
/// TCefTaskRunnerRef.GetForThread(threadId).PostTask(task).
/// </summary>
function CefPostTask(aThreadId : TCefThreadId; const aTask: ICefTask) : boolean;
/// <summary>
/// Post a task for delayed execution on the specified thread. Equivalent to
/// using TCefTaskRunnerRef.GetForThread(threadId).PostDelayedTask(task,
/// delay_ms).
/// </summary>
function CefPostDelayedTask(aThreadId : TCefThreadId; const aTask : ICefTask; aDelayMs : Int64) : boolean;
/// <summary>
/// Returns true (1) if called on the specified thread. Equivalent to using
/// TCefTaskRunnerRef.GetForThread(threadId).BelongsToCurrentThread().
/// </summary>
function CefCurrentlyOn(aThreadId : TCefThreadId) : boolean;
{$IFDEF MSWINDOWS}
/// <summary>
/// Converts a TCefTime value to TSystemTime.
/// </summary>
function CefTimeToSystemTime(const dt: TCefTime): TSystemTime;
/// <summary>
/// Converts a TSystemTime value to TCefTime.
/// </summary>
function SystemTimeToCefTime(const dt: TSystemTime): TCefTime;
{$ELSE}
{$IFDEF LINUX}
{$IFDEF FPC}
/// <summary>
/// Converts a TCefTime value to TSystemTime.
/// </summary>
function CefTimeToSystemTime(const dt: TCefTime): TSystemTime;
/// <summary>
/// Converts a TSystemTime value to TCefTime.
/// </summary>
function SystemTimeToCefTime(const dt: TSystemTime): TCefTime;
{$ENDIF}
{$ENDIF}
{$ENDIF}
/// <summary>
/// Returns a new TCefTime with a valid time in case the original has errors.
/// </summary>
function FixCefTime(const dt : TCefTime): TCefTime;
/// <summary>
/// Converts a TCefTime value to TDateTime.
/// </summary>
function CefTimeToDateTime(const dt: TCefTime): TDateTime;
/// <summary>
/// Converts a TDateTime value to TCefTime.
/// </summary>
function DateTimeToCefTime(dt: TDateTime): TCefTime;
/// <summary>
/// Converts a TDateTime value to TCefBaseTime.
/// </summary>
function DateTimeToCefBaseTime(dt: TDateTime): TCefBaseTime;
/// <summary>
/// Converts TCefTime to a double which is the number of seconds since
/// epoch (Jan 1, 1970). Webkit uses this format to represent time. A value of 0
/// means "not initialized".
/// </summary>
/// <remarks>
/// <para><see href="https://bitbucket.org/chromiumembedded/cef/src/master/include/internal/cef_time.h">CEF source file: /include/internal/cef_time.h (cef_time_to_doublet)</see></para>
/// </remarks>
function CefTimeToDouble(const dt: TCefTime): double;
/// <summary>
/// Converts TCefTime from a double which is the number of seconds since
/// epoch (Jan 1, 1970). Webkit uses this format to represent time. A value of 0
/// means "not initialized".
/// </summary>
/// <remarks>
/// <para><see href="https://bitbucket.org/chromiumembedded/cef/src/master/include/internal/cef_time.h">CEF source file: /include/internal/cef_time.h (cef_time_from_doublet)</see></para>
/// </remarks>
function DoubleToCefTime(const dt: double): TCefTime;
/// <summary>
/// Converts cef_time_t to time_t. time_t is almost always an integral value holding the number of seconds (not counting leap seconds) since 00:00, Jan 1 1970 UTC, corresponding to POSIX time.
/// </summary>
/// <remarks>
/// <para><see href="https://bitbucket.org/chromiumembedded/cef/src/master/include/internal/cef_time.h">CEF source file: /include/internal/cef_time.h (cef_time_to_timet)</see></para>
/// </remarks>
function CefTimeToUnixTime(const dt: TCefTime): int64;
/// <summary>
/// Converts cef_time_t from time_t. time_t is almost always an integral value holding the number of seconds (not counting leap seconds) since 00:00, Jan 1 1970 UTC, corresponding to POSIX time.
/// </summary>
/// <remarks>
/// <para><see href="https://bitbucket.org/chromiumembedded/cef/src/master/include/internal/cef_time.h">CEF source file: /include/internal/cef_time.h (cef_time_from_timet)</see></para>
/// </remarks>
function UnixTimeToCefTime(const dt: int64): TCefTime;
/// <summary>
/// Retrieve the current system time in a TCefTime type.
/// </summary>
/// <remarks>
/// <para><see href="https://bitbucket.org/chromiumembedded/cef/src/master/include/internal/cef_time.h">CEF source file: /include/internal/cef_time.h (cef_time_now)</see></para>
/// </remarks>
function CefTimeNow: TCefTime;
/// <summary>
/// Retrieve the current system time in a double type.
/// </summary>
/// <remarks>
/// <para><see href="https://bitbucket.org/chromiumembedded/cef/src/master/include/internal/cef_time.h">CEF source file: /include/internal/cef_time.h (cef_time_now)</see></para>
/// </remarks>
function DoubleTimeNow: double;
/// <summary>
/// Retrieve the delta in milliseconds between two time values.
/// </summary>
/// <remarks>
/// <para><see href="https://bitbucket.org/chromiumembedded/cef/src/master/include/internal/cef_time.h">CEF source file: /include/internal/cef_time.h (cef_time_delta)</see></para>
/// </remarks>
function CefTimeDelta(const cef_time1, cef_time2: TCefTime): int64;
/// <summary>
/// Retrieve the current system time in a TCefBaseTime type.
/// </summary>
/// <remarks>
/// <para><see href="https://bitbucket.org/chromiumembedded/cef/src/master/include/internal/cef_time.h">CEF source file: /include/internal/cef_time.h (cef_basetime_now)</see></para>
/// </remarks>
function CefBaseTimeNow: TCefBaseTime;
/// <summary>
/// Converts TCefTime to TCefBaseTime.
/// </summary>
/// <remarks>
/// <para><see href="https://bitbucket.org/chromiumembedded/cef/src/master/include/internal/cef_time.h">CEF source file: /include/internal/cef_time.h (cef_time_to_basetime)</see></para>
/// </remarks>
function CetTimeToCefBaseTime(const ct: TCefTime) : TCefBaseTime;
/// <summary>
/// Converts TCefBaseTime to TCefTime.
/// </summary>
/// <remarks>
/// <para><see href="https://bitbucket.org/chromiumembedded/cef/src/master/include/internal/cef_time.h">CEF source file: /include/internal/cef_time.h (cef_time_from_basetime)</see></para>
/// </remarks>
function CetTimeFromCefBaseTime(const cbt: TCefBaseTime) : TCefTime;
/// <summary>
/// Converts TCefBaseTime to TDateTime.
/// </summary>
/// <remarks>
/// <para><see href="https://bitbucket.org/chromiumembedded/cef/src/master/include/internal/cef_time.h">CEF source file: /include/internal/cef_time.h (cef_time_from_basetime)</see></para>
/// </remarks>
function CefBaseTimeToDateTime(const cbt: TCefBaseTime) : TDateTime;
/// <summary>
/// Returns the time interval between now and from_ in milliseconds.
/// This funcion should only be used by TCEFTimerWorkScheduler.
/// </summary>
function GetTimeIntervalMilliseconds(const from_: TCefTime): integer;
/// <summary>
/// Initialize a TCefTime variable.
/// </summary>
procedure InitializeCefTime(var aTime : TCefTime);
function cef_string_wide_copy(const src: PWideChar; src_len: NativeUInt; output: PCefStringWide): Integer;
function cef_string_utf8_copy(const src: PAnsiChar; src_len: NativeUInt; output: PCefStringUtf8): Integer;
function cef_string_utf16_copy(const src: PChar16; src_len: NativeUInt; output: PCefStringUtf16): Integer;
function cef_string_copy(const src: PCefChar; src_len: NativeUInt; output: PCefString): Integer;
{$IFDEF MSWINDOWS}
procedure WindowInfoAsChild(var aWindowInfo : TCefWindowInfo; aParent : TCefWindowHandle; aRect : TRect; const aWindowName : ustring = ''; aExStyle : DWORD = 0);
procedure WindowInfoAsPopUp(var aWindowInfo : TCefWindowInfo; aParent : TCefWindowHandle; const aWindowName : ustring = ''; aExStyle : DWORD = 0);
procedure WindowInfoAsWindowless(var aWindowInfo : TCefWindowInfo; aParent : TCefWindowHandle; const aWindowName : ustring = ''; aExStyle : DWORD = 0);
{$ENDIF}
{$IFDEF MACOSX}
procedure WindowInfoAsChild(var aWindowInfo : TCefWindowInfo; aParent : TCefWindowHandle; aRect : TRect; const aWindowName : ustring = ''; aHidden : boolean = False);
procedure WindowInfoAsPopUp(var aWindowInfo : TCefWindowInfo; aParent : TCefWindowHandle; const aWindowName : ustring = ''; aHidden : boolean = False);
procedure WindowInfoAsWindowless(var aWindowInfo : TCefWindowInfo; aParent : TCefWindowHandle; const aWindowName : ustring = ''; aHidden : boolean = False);
{$ENDIF}
{$IFDEF LINUX}
procedure WindowInfoAsChild(var aWindowInfo : TCefWindowInfo; aParent : TCefWindowHandle; aRect : TRect; const aWindowName : ustring = '');
procedure WindowInfoAsPopUp(var aWindowInfo : TCefWindowInfo; aParent : TCefWindowHandle; const aWindowName : ustring = '');
procedure WindowInfoAsWindowless(var aWindowInfo : TCefWindowInfo; aParent : TCefWindowHandle; const aWindowName : ustring = '');
{$ENDIF}
{$IFDEF MSWINDOWS}
function ProcessUnderWow64(hProcess: THandle; Wow64Process: PBOOL): BOOL; stdcall; external Kernel32DLL name 'IsWow64Process';
function PathIsRelativeAnsi(pszPath: LPCSTR): BOOL; stdcall; external SHLWAPIDLL name 'PathIsRelativeA';
function PathIsRelativeUnicode(pszPath: LPCWSTR): BOOL; stdcall; external SHLWAPIDLL name 'PathIsRelativeW';
function GetGlobalMemoryStatusEx(lpBuffer: LPMEMORYSTATUSEX): BOOL; stdcall; external Kernel32DLL name 'GlobalMemoryStatusEx';
function PathCanonicalizeAnsi(pszBuf: LPSTR; pszPath: LPCSTR): BOOL; stdcall; external SHLWAPIDLL name 'PathCanonicalizeA';
function PathCanonicalizeUnicode(pszBuf: LPWSTR; pszPath: LPCWSTR): BOOL; stdcall; external SHLWAPIDLL name 'PathCanonicalizeW';
function PathIsUNCAnsi(pszPath: LPCSTR): BOOL; stdcall; external SHLWAPIDLL name 'PathIsUNCA';
function PathIsUNCUnicode(pszPath: LPCWSTR): BOOL; stdcall; external SHLWAPIDLL name 'PathIsUNCW';
function PathIsURLAnsi(pszPath: LPCSTR): BOOL; stdcall; external SHLWAPIDLL name 'PathIsURLA';
function PathIsURLUnicode(pszPath: LPCWSTR): BOOL; stdcall; external SHLWAPIDLL name 'PathIsURLW';
function ShutdownBlockReasonCreate(hWnd: HWND; Reason: LPCWSTR): Bool; stdcall; external User32DLL;
function ShutdownBlockReasonDestroy(hWnd: HWND): Bool; stdcall; external User32DLL;
function NetServerGetInfo(servername: LPWSTR; level: DWORD; out bufptr: Pointer): DWORD; stdcall; external Netapi32DLL;
function NetApiBufferFree(Buffer: Pointer): DWORD; stdcall; external Netapi32DLL;
{$IFNDEF DELPHI12_UP}
const
GWLP_WNDPROC = GWL_WNDPROC;
GWLP_HWNDPARENT = GWL_HWNDPARENT;
{$IFDEF WIN64}
function SetWindowLongPtr(hWnd: HWND; nIndex: Integer; dwNewLong: int64): int64; stdcall; external user32 name 'SetWindowLongPtrW';
{$ELSE}
function SetWindowLongPtr(hWnd: HWND; nIndex: Integer; dwNewLong: LongInt): LongInt; stdcall; external user32 name 'SetWindowLongW';
{$ENDIF}
{$ENDIF}
{$ENDIF}
/// <summary>
/// Returns true if aPath is a relative path.
/// </summary>
/// <remarks>
/// <para><see href="https://learn.microsoft.com/en-us/windows/win32/api/shlwapi/nf-shlwapi-pathisrelativew">See the PathIsRelativeW article.</see></para>
/// </remarks>
function CustomPathIsRelative(const aPath : string) : boolean;
/// <summary>
/// Simplifies a path by removing navigation elements such as "." and ".." to produce a direct, well-formed path.
/// </summary>
/// <remarks>
/// <para><see href="https://learn.microsoft.com/en-us/windows/win32/api/shlwapi/nf-shlwapi-pathcanonicalizew">See the PathCanonicalizeW article.</see></para>
/// </remarks>
function CustomPathCanonicalize(const aOriginalPath : string; var aCanonicalPath : string) : boolean;
/// <summary>
/// Returns the absolute path version of aPath.
/// </summary>
function CustomAbsolutePath(const aPath : string; aMustExist : boolean = False) : string;
/// <summary>
/// Tests aPath to determine if it conforms to a valid URL format.
/// </summary>
/// <remarks>
/// <para><see href="https://learn.microsoft.com/en-us/windows/win32/api/shlwapi/nf-shlwapi-pathisurlw">See the PathIsURLW article.</see></para>
/// </remarks>
function CustomPathIsURL(const aPath : string) : boolean;
/// <summary>
/// Determines if aPath is a valid Universal Naming Convention (UNC) path, as opposed to a path based on a drive letter.
/// </summary>
/// <remarks>
/// <para><see href="https://learn.microsoft.com/en-us/windows/win32/api/shlwapi/nf-shlwapi-pathisuncw">See the PathIsUNCW article.</see></para>
/// </remarks>
function CustomPathIsUNC(const aPath : string) : boolean;
/// <summary>
/// Retrieves the fully qualified path for the current module.
/// </summary>
/// <remarks>
/// <para><see href="https://learn.microsoft.com/en-us/windows/win32/api/libloaderapi/nf-libloaderapi-getmodulefilenamew">See the GetModuleFileNameW article.</see></para>
/// </remarks>
function GetModulePath : string;
/// <summary>
/// Returns true (1) if the certificate status represents an error.
/// </summary>
function CefIsCertStatusError(Status : TCefCertStatus) : boolean;
/// <summary>
/// Crash reporting is configured using an INI-style config file named
/// "crash_reporter.cfg". On Windows and Linux this file must be placed next to
/// the main application executable. On macOS this file must be placed in the
/// top-level app bundle Resources directory (e.g.
/// "<appname>.app/Contents/Resources"). File contents are as follows:
///
/// <pre>
/// # Comments start with a hash character and must be on their own line.
///
/// [Config]
/// ProductName=<Value of the "prod" crash key; defaults to "cef">
/// ProductVersion=<Value of the "ver" crash key; defaults to the CEF version>
/// AppName=<Windows only; App-specific folder name component for storing crash
/// information; default to "CEF">
/// ExternalHandler=<Windows only; Name of the external handler exe to use
/// instead of re-launching the main exe; default to empty>
/// BrowserCrashForwardingEnabled=<macOS only; True if browser process crashes
/// should be forwarded to the system crash
/// reporter; default to false>
/// ServerURL=<crash server URL; default to empty>
/// RateLimitEnabled=<True if uploads should be rate limited; default to true>
/// MaxUploadsPerDay=<Max uploads per 24 hours, used if rate limit is enabled;
/// default to 5>
/// MaxDatabaseSizeInMb=<Total crash report disk usage greater than this value
/// will cause older reports to be deleted; default to 20>
/// MaxDatabaseAgeInDays=<Crash reports older than this value will be deleted;
/// default to 5>
///
/// [CrashKeys]
/// my_key1=<small|medium|large>
/// my_key2=<small|medium|large>
/// </pre>
///
/// <b>Config section:</b>
///
/// If "ProductName" and/or "ProductVersion" are set then the specified values
/// will be included in the crash dump metadata. On macOS if these values are
/// set to NULL then they will be retrieved from the Info.plist file using the
/// "CFBundleName" and "CFBundleShortVersionString" keys respectively.
///
/// If "AppName" is set on Windows then crash report information (metrics,
/// database and dumps) will be stored locally on disk under the
/// "C:\Users\[CurrentUser]\AppData\Local\[AppName]\User Data" folder. On other
/// platforms the cef_settings_t.root_cache_path value will be used.
///
/// If "ExternalHandler" is set on Windows then the specified exe will be
/// launched as the crashpad-handler instead of re-launching the main process
/// exe. The value can be an absolute path or a path relative to the main exe
/// directory. On Linux the cef_settings_t.browser_subprocess_path value will be
/// used. On macOS the existing subprocess app bundle will be used.
///
/// If "BrowserCrashForwardingEnabled" is set to true (1) on macOS then browser
/// process crashes will be forwarded to the system crash reporter. This results
/// in the crash UI dialog being displayed to the user and crash reports being
/// logged under "~/Library/Logs/DiagnosticReports". Forwarding of crash reports
/// from non-browser processes and Debug builds is always disabled.
///
/// If "ServerURL" is set then crashes will be uploaded as a multi-part POST
/// request to the specified URL. Otherwise, reports will only be stored locally
/// on disk.
///
/// If "RateLimitEnabled" is set to true (1) then crash report uploads will be
/// rate limited as follows:
/// 1. If "MaxUploadsPerDay" is set to a positive value then at most the
/// specified number of crashes will be uploaded in each 24 hour period.
/// 2. If crash upload fails due to a network or server error then an
/// incremental backoff delay up to a maximum of 24 hours will be applied
/// for retries.
/// 3. If a backoff delay is applied and "MaxUploadsPerDay" is > 1 then the
/// "MaxUploadsPerDay" value will be reduced to 1 until the client is
/// restarted. This helps to avoid an upload flood when the network or
/// server error is resolved.
/// Rate limiting is not supported on Linux.
///
/// If "MaxDatabaseSizeInMb" is set to a positive value then crash report
/// storage on disk will be limited to that size in megabytes. For example, on
/// Windows each dump is about 600KB so a "MaxDatabaseSizeInMb" value of 20
/// equates to about 34 crash reports stored on disk. Not supported on Linux.
///
/// If "MaxDatabaseAgeInDays" is set to a positive value then crash reports
/// older than the specified age in days will be deleted. Not supported on
/// Linux.
///
/// <b>CrashKeys section:</b>
///
/// A maximum of 26 crash keys of each size can be specified for use by the
/// application. Crash key values will be truncated based on the specified size
/// (small = 64 bytes, medium = 256 bytes, large = 1024 bytes). The value of
/// crash keys can be set from any thread or process using the
/// CefSetCrashKeyValue function. These key/value pairs will be sent to the
/// crash server along with the crash dump file.
/// </summary>
function CefCrashReportingEnabled : boolean;
/// <summary>
/// Sets or clears a specific key-value pair from the crash metadata.
/// </summary>
procedure CefSetCrashKeyValue(const aKey, aValue : ustring);
/// <summary>
/// Add a log message. See the LogSeverity defines for supported |severity|
/// values.
/// </summary>
/// <remarks>
/// <para><see href="https://bitbucket.org/chromiumembedded/cef/src/master/include/base/cef_logging.h">CEF source file: /include/base/cef_logging.h (cef_log)</see></para>
/// <para><see href="https://bitbucket.org/chromiumembedded/cef/src/master/include/base/cef_logging.h">CEF source file: /include/base/cef_logging.h (LogSeverity)</see></para>
/// </remarks>
procedure CefLog(const aFile : string; aLine, aSeverity : integer; const aMessage : string);
procedure CefDebugLog(const aMessage : string; aSeverity : integer = CEF_LOG_SEVERITY_ERROR);
procedure CefKeyEventLog(const aEvent : TCefKeyEvent);
procedure CefMouseEventLog(const aEvent : TCefMouseEvent);
procedure OutputDebugMessage(const aMessage : string);
function CustomExceptionHandler(const aFunctionName : string; const aException : exception) : boolean;
/// <summary>
/// Gets the current log verbose level (LogSeverity).
/// </summary>
/// <remarks>
/// <para><see href="https://bitbucket.org/chromiumembedded/cef/src/master/include/base/cef_logging.h">CEF source file: /include/base/cef_logging.h (cef_get_min_log_level)</see></para>
/// <para><see href="https://bitbucket.org/chromiumembedded/cef/src/master/include/base/cef_logging.h">CEF source file: /include/base/cef_logging.h (LogSeverity)</see></para>
/// </remarks>
function CefGetMinLogLevel: integer;
/// <summary>
/// Gets the current vlog level for the given file.
/// </summary>
/// <remarks>
/// <para><see href="https://bitbucket.org/chromiumembedded/cef/src/master/include/base/cef_logging.h">CEF source file: /include/base/cef_logging.h (cef_get_vlog_level)</see></para>
/// </remarks>
function CefGetVLogLevel(const file_start : string): integer;
/// <summary>
/// Gets the log severity name.
/// </summary>
/// <remarks>
/// <para><see href="https://bitbucket.org/chromiumembedded/cef/src/master/include/base/cef_logging.h">CEF source file: /include/base/cef_logging.h (LogSeverity)</see></para>
/// </remarks>
function CefGetLogSeverityName(aSeverity: integer): ustring;
/// <summary>
/// Register a scheme handler factory with the global request context. An NULL
/// |DomainName| value for a standard scheme will cause the factory to match
/// all domain names. The |DomainName| value will be ignored for non-standard
/// schemes. If |SchemeName| is a built-in scheme and no handler is returned by
/// |factory| then the built-in scheme handler factory will be called. If
/// |SchemeName| is a custom scheme then you must also implement the
/// ICefApp.OnRegisterCustomSchemes function in all processes. This
/// function may be called multiple times to change or remove the factory that
/// matches the specified |SchemeName| and optional |DomainName|. Returns
/// false (0) if an error occurs. This function may be called on any thread in
/// the browser process. Using this function is equivalent to calling cef_reques
/// t_context_t::cef_request_context_get_global_context()->register_scheme_handl
/// er_factory().
/// </summary>
function CefRegisterSchemeHandlerFactory(const SchemeName, DomainName : ustring; const handler: TCefResourceHandlerClass = nil): Boolean;
/// <summary>
/// Clear all scheme handler factories registered with the global request
/// context. Returns false (0) on error. This function may be called on any
/// thread in the browser process. Using this function is equivalent to calling
/// cef_request_context_t::cef_request_context_get_global_context()->clear_schem
/// e_handler_factories().
/// </summary>
function CefClearSchemeHandlerFactories : boolean;
/// <summary>
/// <para>Add an entry to the cross-origin access whitelist.</para>
/// <para>The same-origin policy restricts how scripts hosted from different origins
/// (scheme + domain + port) can communicate. By default, scripts can only
/// access resources with the same origin. Scripts hosted on the HTTP and HTTPS
/// schemes (but no other schemes) can use the "Access-Control-Allow-Origin"
/// header to allow cross-origin requests. For example,
/// https://source.example.com can make XMLHttpRequest requests on
/// http://target.example.com if the http://target.example.com request returns
/// an "Access-Control-Allow-Origin: https://source.example.com" response
/// header.</para>
/// <para>Scripts in separate frames or iframes and hosted from the same protocol and
/// domain suffix can execute cross-origin JavaScript if both pages set the
/// document.domain value to the same domain suffix. For example,
/// scheme://foo.example.com and scheme://bar.example.com can communicate using
/// JavaScript if both domains set document.domain="example.com".</para>
/// <para>This function is used to allow access to origins that would otherwise
/// violate the same-origin policy. Scripts hosted underneath the fully
/// qualified |source_origin| URL (like http://www.example.com) will be allowed
/// access to all resources hosted on the specified |target_protocol| and
/// |target_domain|. If |target_domain| is non-NULL and
/// |allow_target_subdomains| is false (0) only exact domain matches will be
/// allowed. If |target_domain| contains a top- level domain component (like
/// "example.com") and |allow_target_subdomains| is true (1) sub-domain matches
/// will be allowed. If |target_domain| is NULL and |allow_target_subdomains| if
/// true (1) all domains and IP addresses will be allowed.</para>
/// <para>This function cannot be used to bypass the restrictions on local or display
/// isolated schemes. See the comments on CefRegisterCustomScheme for more
/// information.</para>
/// <para>This function may be called on any thread. Returns false (0) if
/// |source_origin| is invalid or the whitelist cannot be accessed.</para>
/// </summary>
function CefAddCrossOriginWhitelistEntry(const SourceOrigin, TargetProtocol, TargetDomain: ustring; AllowTargetSubdomains: Boolean): Boolean;
/// <summary>
/// Remove an entry from the cross-origin access whitelist. Returns false (0) if
/// |source_origin| is invalid or the whitelist cannot be accessed.
/// </summary>
function CefRemoveCrossOriginWhitelistEntry(const SourceOrigin, TargetProtocol, TargetDomain: ustring; AllowTargetSubdomains: Boolean): Boolean;
/// <summary>
/// Remove all entries from the cross-origin access whitelist. Returns false (0)
/// if the whitelist cannot be accessed.
/// </summary>
function CefClearCrossOriginWhitelist: Boolean;
procedure UInt64ToFileVersionInfo(const aVersion : uint64; var aVersionInfo : TFileVersionInfo);
{$IFDEF MSWINDOWS}
function GetExtendedFileVersion(const aFileName : ustring) : uint64;
function GetDLLVersion(const aDLLFile : ustring; var aVersionInfo : TFileVersionInfo) : boolean;
procedure OutputLastErrorMessage;
function GetRegistryWindowsVersion(var aMajor, aMinor: cardinal) : boolean;
function GetRealWindowsVersion(var aMajor, aMinor: cardinal) : boolean;
function CheckRealWindowsVersion(aMajor, aMinor: cardinal) : boolean;
{$ENDIF}
function SplitLongString(aSrcString : string) : string;
function GetAbsoluteDirPath(const aSrcPath : string; var aRsltPath : string) : boolean;
function CheckSubprocessPath(const aSubprocessPath : string; var aMissingFiles : string) : boolean;
function CheckLocales(const aLocalesDirPath : string; var aMissingFiles : string; const aLocalesRequired : string = '') : boolean;
function CheckResources(const aResourcesDirPath : string; var aMissingFiles : string) : boolean;
function CheckDLLs(const aFrameworkDirPath : string; var aMissingFiles : string) : boolean;
{$IFDEF MSWINDOWS}
function CheckDLLVersion(const aDLLFile : ustring; aMajor, aMinor, aRelease, aBuild : uint16) : boolean;
function GetDLLHeaderMachine(const aDLLFile : ustring; var aMachine : integer) : boolean;
{$ENDIF}
function GetFileTypeDescription(const aExtension : ustring) : ustring;
function FileVersionInfoToString(const aVersionInfo : TFileVersionInfo) : string;
function CheckFilesExist(var aList : TStringList; var aMissingFiles : string) : boolean;
function Is32BitProcess : boolean;
/// <summary>
/// Combines specified |base_url| and |relative_url| into a ustring.
/// </summary>
function CefResolveUrl(const base_url, relative_url: ustring): ustring;
/// <summary>
/// Parse the specified |url| into its component parts. Returns false (0) if the
/// URL is invalid.
/// </summary>
function CefParseUrl(const url: ustring; var parts: TUrlParts): Boolean;
/// <summary>
/// Creates a URL from the specified |parts|, which must contain a non-NULL spec
/// or a non-NULL host and path (at a minimum), but not both.
/// </summary>
function CefCreateUrl(var parts: TUrlParts): ustring;
/// <summary>
/// This is a convenience function for formatting a URL in a concise and human-
/// friendly way to help users make security-related decisions (or in other
/// circumstances when people need to distinguish sites, origins, or otherwise-
/// simplified URLs from each other). Internationalized domain names (IDN) may
/// be presented in Unicode if the conversion is considered safe. The returned
/// value will (a) omit the path for standard schemes, excepting file and
/// filesystem, and (b) omit the port if it is the default for the scheme. Do
/// not use this for URLs which will be parsed or sent to other applications.
/// </summary>
function CefFormatUrlForSecurityDisplay(const originUrl: string): string;
/// <summary>
/// Returns the mime type for the specified file extension or an NULL string if
/// unknown.
/// </summary>
function CefGetMimeType(const extension: ustring): ustring;
/// <summary>
/// Get the extensions associated with the given mime type. This should be
/// passed in lower case. There could be multiple extensions for a given mime
/// type, like "html,htm" for "text/html", or "txt,text,html,..." for "text/*".
/// Any existing elements in the provided vector will not be erased.
/// </summary>
procedure CefGetExtensionsForMimeType(const mimeType: ustring; var extensions: TStringList);
/// <summary>
/// Encodes |data| as a base64 string.
/// </summary>
function CefBase64Encode(const data: Pointer; dataSize: NativeUInt): ustring;
/// <summary>
/// Decodes the base64 encoded string |data|. The returned value will be NULL if
/// the decoding fails.
/// </summary>
function CefBase64Decode(const data: ustring): ICefBinaryValue;
/// <summary>
/// Escapes characters in |text| which are unsuitable for use as a query
/// parameter value. Everything except alphanumerics and -_.!~*'() will be
/// converted to "%XX". If |use_plus| is true (1) spaces will change to "+". The
/// result is basically the same as encodeURIComponent in Javacript.
/// </summary>
function CefUriEncode(const text: ustring; usePlus: Boolean): ustring;
/// <summary>
/// Unescapes |text| and returns the result. Unescaping consists of looking for
/// the exact pattern "%XX" where each X is a hex digit and converting to the
/// character with the numerical value of those digits (e.g. "i%20=%203%3b"
/// unescapes to "i = 3;"). If |convert_to_utf8| is true (1) this function will
/// attempt to interpret the initial decoded result as UTF-8. If the result is
/// convertable into UTF-8 it will be returned as converted. Otherwise the
/// initial decoded result will be returned. The |unescape_rule| parameter
/// supports further customization the decoding process.
/// </summary>
function CefUriDecode(const text: ustring; convertToUtf8: Boolean; unescapeRule: TCefUriUnescapeRule): ustring;
/// <summary>
/// Retrieve the path associated with the specified |aPathKey|.
/// Can be called on any thread in the browser process.
/// </summary>
function CefGetPath(const aPathKey : TCefPathKey) : ustring;
/// <summary>
/// Returns true (1) if the application text direction is right-to-left.
/// </summary>
function CefIsRTL : boolean;
/// <summary>
/// Creates a directory and all parent directories if they don't already exist.
/// Returns true (1) on successful creation or if the directory already exists.
/// The directory is only readable by the current user. Calling this function on
/// the browser process UI or IO threads is not allowed.
/// </summary>
function CefCreateDirectory(const fullPath: ustring): Boolean;
/// <summary>
/// Get the temporary directory provided by the system.
/// WARNING: In general, you should use the temp directory variants below
/// instead of this function. Those variants will ensure that the proper
/// permissions are set so that other users on the system can't edit them while
/// they're open (which could lead to security issues).
/// </summary>
function CefGetTempDirectory(out tempDir: ustring): Boolean;
/// <summary>
/// Creates a new directory. On Windows if |prefix| is provided the new
/// directory name is in the format of "prefixyyyy". Returns true (1) on success
/// and sets |newTempPath| to the full path of the directory that was created.
/// The directory is only readable by the current user. Calling this function on
/// the browser process UI or IO threads is not allowed.
/// </summary>
function CefCreateNewTempDirectory(const prefix: ustring; out newTempPath: ustring): Boolean;
/// <summary>
/// Creates a directory within another directory. Extra characters will be
/// appended to |prefix| to ensure that the new directory does not have the same
/// name as an existing directory. Returns true (1) on success and sets
/// |newDir| to the full path of the directory that was created. The directory
/// is only readable by the current user. Calling this function on the browser
/// process UI or IO threads is not allowed.
/// </summary>
function CefCreateTempDirectoryInDirectory(const baseDir, prefix: ustring; out newDir: ustring): Boolean;
/// <summary>
/// Returns true (1) if the given path exists and is a directory. Calling this
/// function on the browser process UI or IO threads is not allowed.
/// </summary>
function CefDirectoryExists(const path: ustring): Boolean;
/// <summary>
/// Deletes the given path whether it's a file or a directory. If |path| is a
/// directory all contents will be deleted. If |recursive| is true (1) any sub-
/// directories and their contents will also be deleted (equivalent to executing
/// "rm -rf", so use with caution). On POSIX environments if |path| is a
/// symbolic link then only the symlink will be deleted. Returns true (1) on
/// successful deletion or if |path| does not exist. Calling this function on
/// the browser process UI or IO threads is not allowed.
/// </summary>
function CefDeleteFile(const path: ustring; recursive: Boolean): Boolean;
/// <summary>
/// Writes the contents of |srcDir| into a zip archive at |destFile|. If
/// |includeHiddenFiles| is true (1) files starting with "." will be included.
/// Returns true (1) on success. Calling this function on the browser process
/// UI or IO threads is not allowed.
/// </summary>
function CefZipDirectory(const srcDir, destFile: ustring; includeHiddenFiles: Boolean): Boolean;
/// <summary>
/// Loads the existing "Certificate Revocation Lists" file that is managed by
/// Google Chrome. This file can generally be found in Chrome's User Data
/// directory (e.g. "C:\Users\[User]\AppData\Local\Google\Chrome\User Data\" on
/// Windows) and is updated periodically by Chrome's component updater service.
/// Must be called in the browser process after the context has been
/// initialized. See https://dev.chromium.org/Home/chromium-security/crlsets for
/// background.
/// </summary>
procedure CefLoadCRLSetsFile(const path : ustring);
{$IFDEF MSWINDOWS}
function CefIsKeyDown(aWparam : WPARAM) : boolean;
function CefIsKeyToggled(aWparam : WPARAM) : boolean;
function GetCefMouseModifiers : TCefEventFlags; overload;
function GetCefMouseModifiers(awparam : WPARAM) : TCefEventFlags; overload;
function GetCefKeyboardModifiers(aWparam : WPARAM; aLparam : LPARAM) : TCefEventFlags;
procedure CefCheckAltGrPressed(aWparam : WPARAM; var aEvent : TCefKeyEvent);
procedure DropEffectToDragOperation(aEffect : Longint; var aAllowedOps : TCefDragOperations);
procedure DragOperationToDropEffect(const aDragOperations : TCefDragOperations; var aEffect: Longint);
function GetWindowsMajorMinorVersion(var wMajorVersion, wMinorVersion : DWORD) : boolean;
function RunningWindows10OrNewer : boolean;
function GetDPIForHandle(aHandle : HWND; var aDPI : UINT) : boolean;
function GetDefaultCEFUserAgent : string;
{$IFDEF DELPHI14_UP}
function TouchPointToPoint(aHandle : HWND; const TouchPoint: TTouchInput): TPoint;
function GetDigitizerStatus(var aDigitizerStatus : TDigitizerStatus; aDPI : cardinal = 0) : boolean;
function HasTouchOrPen(aDPI : cardinal = 0) : boolean;
{$ENDIF}
{$ENDIF}
function DeviceToLogical(aValue : integer; const aDeviceScaleFactor : double) : integer; overload;
function DeviceToLogical(aValue : single; const aDeviceScaleFactor : double) : single; overload;
procedure DeviceToLogical(var aEvent : TCEFMouseEvent; const aDeviceScaleFactor : double); overload;
procedure DeviceToLogical(var aEvent : TCefTouchEvent; const aDeviceScaleFactor : double); overload;
procedure DeviceToLogical(var aPoint : TPoint; const aDeviceScaleFactor : double); overload;
function LogicalToDevice(aValue : integer; const aDeviceScaleFactor : double) : integer; overload;
procedure LogicalToDevice(var aRect : TCEFRect; const aDeviceScaleFactor : double); overload;
function GetScreenDPI : integer;
function GetDeviceScaleFactor : single;
function DeleteDirContents(const aDirectory : string; const aExcludeFiles : TStringList = nil) : boolean;
function DeleteFileList(const aFileList : TStringList) : boolean;
function MoveFileList(const aFileList : TStringList; const aSrcDirectory, aDstDirectory : string) : boolean;
/// <summary>
/// Returns a URI with a DATA scheme using |aString| as the URI's data.
/// </summary>
function CefGetDataURI(const aString, aMimeType : ustring) : ustring; overload;
/// <summary>
/// Returns a URI with a DATA scheme encoding |aData| as a base64 string.
/// </summary>
function CefGetDataURI(aData : pointer; aSize : integer; const aMimeType : ustring; const aCharset : ustring = '') : ustring; overload;
function ValidCefWindowHandle(aHandle : TCefWindowHandle) : boolean;
procedure InitializeWindowHandle(var aHandle : TCefWindowHandle);
/// <summary>
/// Returns a command line switch value if it exists.
/// </summary>
function GetCommandLineSwitchValue(const aKey : string; var aValue : ustring) : boolean;
/// <summary>
/// Returns true if the command line switch has a "type" value.
/// </summary>
function IsCEFSubprocess : boolean;
implementation
uses
{$IFDEF LINUX}{$IFDEF FMX}uCEFLinuxFunctions, Posix.Unistd, Posix.Stdio,{$ENDIF}{$ENDIF}
{$IFDEF MACOSX}{$IFDEF FPC}CocoaAll,{$ELSE}Posix.Unistd, Posix.Stdio,{$ENDIF}{$ENDIF}
uCEFApplicationCore, uCEFSchemeHandlerFactory, uCEFValue,
uCEFBinaryValue, uCEFStringList;
function CefColorGetA(color: TCefColor): Byte;
begin
Result := (color shr 24) and $FF;
end;
function CefColorGetR(color: TCefColor): byte;
begin
Result := (color shr 16) and $FF;
end;
function CefColorGetG(color: TCefColor): Byte;
begin
Result := (color shr 8) and $FF;
end;
function CefColorGetB(color: TCefColor): Byte;
begin
Result := color and $FF;
end;
function CefColorSetARGB(a, r, g, b: Byte): TCefColor;
begin
Result := (a shl 24) or (r shl 16) or (g shl 8) or b;
end;
function CefInt64Set(int32_low, int32_high: Integer): Int64;
begin
Result := int32_low or (int32_high shl 32);
end;
function CefInt64GetLow(const int64_val: Int64): Integer;
begin
Result := Integer(int64_val);
end;
function CefInt64GetHigh(const int64_val: Int64): Integer;
begin
Result := (int64_val shr 32) and $FFFFFFFF;
end;
function CefStringClearAndGet(str: PCefString): ustring;
begin
if (str <> nil) and (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
Result := CefString(str);
cef_string_utf16_clear(str);
end
else
Result := '';
end;
{$IFDEF CEF4DELHI_ALLOC_DEBUG}
function CefGetObject(ptr: Pointer): TObject;
var
TempPointer : pointer;
begin
Result := nil;
if (ptr <> nil) then
begin
Dec(PByte(ptr), SizeOf(Pointer));
TempPointer := ptr;
if (PPointer(ptr)^ <> nil) then
begin
Dec(PByte(TempPointer), SizeOf(Pointer) * 2);
if (PPointer(TempPointer)^ = CEF4DELPHI_ALLOC_PADDING) then
Result := TObject(PPointer(ptr)^)
else
CefDebugLog('Pointer to an unknown memory address!', CEF_LOG_SEVERITY_INFO);
end
else
CefDebugLog('Object pointer is NIL!', CEF_LOG_SEVERITY_INFO);
end;
end;
{$ELSE}
function CefGetObject(ptr: Pointer): TObject; {$IFDEF SUPPORTS_INLINE} inline; {$ENDIF}
begin
if (ptr <> nil) then
begin
Dec(PByte(ptr), SizeOf(Pointer));
Result := TObject(PPointer(ptr)^);
end
else
Result := nil;
end;
{$ENDIF}
function CefGetData(const i: ICefBaseRefCounted): Pointer; {$IFDEF SUPPORTS_INLINE} inline; {$ENDIF}
begin
if (i <> nil) then
Result := i.Wrap
else
Result := nil;
end;
function CefString(const str: PCefString): ustring;
begin
if (str <> nil) and (str^.str <> nil) and (str^.length > 0) and (str^.length < nativeuint(high(integer))) then
SetString(Result, str^.str, str^.length)
else
Result := '';
end;
function CefString(const str: ustring): TCefString;
begin
Result.str := PChar16(PWideChar(str));
Result.length := Length(str);
Result.dtor := nil;
end;
procedure CefStringFree(const str: PCefString);
begin
if (str <> nil) and (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
cef_string_utf16_clear(str);
end;
procedure CefStringSet(const str: PCefString; const value: ustring);
begin
if (str <> nil) and (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
cef_string_utf16_set(PWideChar(value), Length(value), str, Ord(True));
end;
procedure CefStringInitialize(const aCefString : PCefString); {$IFDEF SUPPORTS_INLINE} inline; {$ENDIF}
begin
if (aCefString <> nil) then
begin
aCefString^.str := nil;
aCefString^.length := 0;
aCefString^.dtor := nil;
end;
end;
function CefStringFreeAndGet(const str: PCefStringUserFree): ustring;
begin
if (str <> nil) and (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
Result := CefString(PCefString(str));
cef_string_userfree_utf16_free(str);
end
else
Result := '';
end;
function CefStringAlloc(const str: ustring): TCefString;
begin
CefStringInitialize(@Result);
if (str <> '') and (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
cef_string_wide_to_utf16(PWideChar(str), Length(str), @Result);
end;
procedure _free_string(str: PChar16); stdcall;
begin
if (str <> nil) then FreeMem(str);
end;
function CefUserFreeString(const str: ustring): PCefStringUserFree;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
Result := cef_string_userfree_utf16_alloc();
Result^.length := Length(str);
GetMem(Result^.str, Result^.length * SizeOf(TCefChar));
Move(PCefChar(str)^, Result^.str^, Result^.length * SizeOf(TCefChar));
Result^.dtor := @_free_string;
end
else
Result := nil;
end;
function CefRegisterExtension(const name, code: ustring; const Handler: ICefv8Handler): Boolean;
var
TempName, TempCode : TCefString;
begin
if (GlobalCEFApp <> nil) and
GlobalCEFApp.LibLoaded and
((GlobalCEFApp.ProcessType = ptRenderer) or GlobalCEFApp.SingleProcess) and
(length(name) > 0) and
(length(code) > 0) then
begin
TempName := CefString(name);
TempCode := CefString(code);
Result := cef_register_extension(@TempName, @TempCode, CefGetData(handler)) <> 0;
end
else
Result := False;
end;
function CefPostTask(aThreadId : TCefThreadId; const aTask : ICefTask) : boolean;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded and (aTask <> nil) then
Result := cef_post_task(aThreadId, aTask.Wrap) <> 0
else
Result := False;
end;
function CefPostDelayedTask(aThreadId : TCefThreadId; const aTask : ICefTask; aDelayMs : Int64) : boolean;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded and (aTask <> nil) then
Result := cef_post_delayed_task(aThreadId, aTask.Wrap, aDelayMs) <> 0
else
Result := False;
end;
function CefCurrentlyOn(aThreadId : TCefThreadId) : boolean;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
Result := cef_currently_on(aThreadId) <> 0
else
Result := False;
end;
{$IFDEF MSWINDOWS}
function CefTimeToSystemTime(const dt: TCefTime): TSystemTime;
begin
Result.wYear := dt.year;
Result.wMonth := dt.month;
Result.wDayOfWeek := dt.day_of_week;
Result.wDay := dt.day_of_month;
Result.wHour := dt.hour;
Result.wMinute := dt.minute;
Result.wSecond := dt.second;
Result.wMilliseconds := dt.millisecond;
end;
function SystemTimeToCefTime(const dt: TSystemTime): TCefTime;
begin
Result.year := dt.wYear;
Result.month := dt.wMonth;
Result.day_of_week := dt.wDayOfWeek;
Result.day_of_month := dt.wDay;
Result.hour := dt.wHour;
Result.minute := dt.wMinute;
Result.second := dt.wSecond;
Result.millisecond := dt.wMilliseconds;
end;
{$ELSE}
{$IFDEF LINUX}
{$IFDEF FPC}
function CefTimeToSystemTime(const dt: TCefTime): TSystemTime;
begin
Result.Year := dt.year;
Result.Month := dt.month;
Result.DayOfWeek := dt.day_of_week;
Result.Day := dt.day_of_month;
Result.Hour := dt.hour;
Result.Minute := dt.minute;
Result.Second := dt.second;
Result.Millisecond := dt.millisecond;
end;
function SystemTimeToCefTime(const dt: TSystemTime): TCefTime;
begin
Result.year := dt.Year;
Result.month := dt.Month;
Result.day_of_week := dt.DayOfWeek;
Result.day_of_month := dt.Day;
Result.hour := dt.Hour;
Result.minute := dt.Minute;
Result.second := dt.Second;
Result.millisecond := dt.Millisecond;
end;
{$ENDIF}
{$ENDIF}
{$ENDIF}
function FixCefTime(const dt : TCefTime): TCefTime;
var
DayTable : PDayTable;
begin
Result := dt;
Result.year := min(9999, max(1, Result.year));
Result.month := min(12, max(1, Result.month));
Result.hour := min(23, max(0, Result.hour));
Result.minute := min(59, max(0, Result.minute));
Result.second := min(59, max(0, Result.second));
Result.millisecond := min(999, max(0, Result.millisecond));
DayTable := @MonthDays[IsLeapYear(Result.year)];
Result.day_of_month := min(DayTable^[Result.month], max(1, Result.day_of_month));
end;
function CefTimeToDateTime(const dt: TCefTime): TDateTime;
var
TempFixedCefTime : TCefTime;
begin
TempFixedCefTime := FixCefTime(dt);
Result := EncodeDate(TempFixedCefTime.year, TempFixedCefTime.month, TempFixedCefTime.day_of_month) +
EncodeTime(TempFixedCefTime.hour, TempFixedCefTime.minute, TempFixedCefTime.second, TempFixedCefTime.millisecond);
end;
function DateTimeToCefTime(dt: TDateTime): TCefTime;
var
TempYear, TempMonth, TempDay, TempHour, TempMin, TempSec, TempMSec : Word;
begin
DecodeDate(dt, TempYear, TempMonth, TempDay);
DecodeTime(dt, TempHour, TempMin, TempSec, TempMSec);
Result.year := TempYear;
Result.month := TempMonth;
Result.day_of_week := DayOfWeek(dt);
Result.day_of_month := TempDay;
Result.hour := TempHour;
Result.minute := TempMin;
Result.second := TempSec;
Result.millisecond := TempMSec;
end;
function DateTimeToCefBaseTime(dt: TDateTime): TCefBaseTime;
begin
Result := CetTimeToCefBaseTime(DateTimeToCefTime(dt));
end;
function CefTimeToDouble(const dt: TCefTime): double;
begin
Result := 0;
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
cef_time_to_doublet(@dt, Result);
end;
function DoubleToCefTime(const dt: double): TCefTime;
begin
FillChar(Result, SizeOf(TCefTime), #0);
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
cef_time_from_doublet(dt, Result);
end;
function CefTimeToUnixTime(const dt: TCefTime): int64;
begin
Result := 0;
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
cef_time_to_timet(@dt, Result);
end;
function UnixTimeToCefTime(const dt: int64): TCefTime;
begin
FillChar(Result, SizeOf(TCefTime), #0);
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
cef_time_from_timet(dt, Result);
end;
function CefTimeNow: TCefTime;
begin
FillChar(Result, SizeOf(TCefTime), #0);
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
cef_time_now(Result);
end;
function DoubleTimeNow: double;
var
TempTime : TCefTime;
begin
Result := 0;
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
FillChar(TempTime, SizeOf(TCefTime), #0);
if (cef_time_now(TempTime) <> 0) then
cef_time_to_doublet(@TempTime, Result);
end;
end;
function CefTimeDelta(const cef_time1, cef_time2: TCefTime): int64;
begin
Result := 0;
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
cef_time_delta(@cef_time1, @cef_time2, Result);
end;
function CefBaseTimeNow: TCefBaseTime;
begin
Result := 0;
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
Result := cef_basetime_now();
end;
function CetTimeToCefBaseTime(const ct: TCefTime) : TCefBaseTime;
var
TempResult : TCefBaseTime;
begin
Result := 0;
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded and (cef_time_to_basetime(@ct, @TempResult) <> 0) then
Result := TempResult;
end;
function CetTimeFromCefBaseTime(const cbt: TCefBaseTime) : TCefTime;
var
TempResult : TCefTime;
begin
FillChar(Result, SizeOf(TCefTime), #0);
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded and (cef_time_from_basetime(cbt, @TempResult) <> 0) then
Result := TempResult;
end;
function CefBaseTimeToDateTime(const cbt: TCefBaseTime) : TDateTime;
var
TempResult : TCefTime;
begin
Result := 0;
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded and (cef_time_from_basetime(cbt, @TempResult) <> 0) then
Result := CefTimeToDateTime(TempResult);
end;
function GetTimeIntervalMilliseconds(const from_: TCefTime): integer;
var
TempFrom : double;
TempDelay : integer;
begin
Result := -1;
TempFrom := CefTimeToDouble(from_);
if (TempFrom = 0) then exit;
TempDelay := ceil((TempFrom - DoubleTimeNow) * 1000);
Result := max(0, TempDelay);
end;
procedure InitializeCefTime(var aTime : TCefTime);
begin
aTime.year := 0;
aTime.month := 0;
aTime.day_of_week := 0;
aTime.day_of_month := 0;
aTime.hour := 0;
aTime.minute := 0;
aTime.second := 0;
aTime.millisecond := 0;
end;
function cef_string_wide_copy(const src: PWideChar; src_len: NativeUInt; output: PCefStringWide): Integer;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
Result := cef_string_wide_set(src, src_len, output, ord(True))
else
Result := 0;
end;
function cef_string_utf8_copy(const src: PAnsiChar; src_len: NativeUInt; output: PCefStringUtf8): Integer;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
Result := cef_string_utf8_set(src, src_len, output, ord(True))
else
Result := 0;
end;
function cef_string_utf16_copy(const src: PChar16; src_len: NativeUInt; output: PCefStringUtf16): Integer;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
Result := cef_string_utf16_set(src, src_len, output, ord(True))
else
Result := 0;
end;
function cef_string_copy(const src: PCefChar; src_len: NativeUInt; output: PCefString): Integer;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
Result := cef_string_utf16_set(src, src_len, output, ord(True))
else
Result := 0;
end;
{$IFDEF MSWINDOWS}
procedure WindowInfoAsChild(var aWindowInfo : TCefWindowInfo; aParent : TCefWindowHandle; aRect : TRect; const aWindowName : ustring; aExStyle : DWORD);
begin
aWindowInfo.ex_style := aExStyle;
aWindowInfo.window_name := CefString(aWindowName);
aWindowInfo.style := WS_CHILD or WS_VISIBLE or WS_CLIPCHILDREN or WS_CLIPSIBLINGS or WS_TABSTOP;
aWindowInfo.bounds.x := aRect.left;
aWindowInfo.bounds.y := aRect.top;
aWindowInfo.bounds.width := aRect.right - aRect.left;
aWindowInfo.bounds.height := aRect.bottom - aRect.top;
aWindowInfo.parent_window := aParent;
aWindowInfo.menu := 0;
aWindowInfo.windowless_rendering_enabled := ord(False);
aWindowInfo.shared_texture_enabled := ord(False);
aWindowInfo.external_begin_frame_enabled := ord(False);
aWindowInfo.window := 0;
end;
procedure WindowInfoAsPopUp(var aWindowInfo : TCefWindowInfo; aParent : TCefWindowHandle; const aWindowName : ustring; aExStyle : DWORD);
begin
aWindowInfo.ex_style := aExStyle;
aWindowInfo.window_name := CefString(aWindowName);
aWindowInfo.style := WS_OVERLAPPEDWINDOW or WS_CLIPCHILDREN or WS_CLIPSIBLINGS or WS_VISIBLE;
aWindowInfo.bounds.x := integer(CW_USEDEFAULT);
aWindowInfo.bounds.y := integer(CW_USEDEFAULT);
aWindowInfo.bounds.width := integer(CW_USEDEFAULT);
aWindowInfo.bounds.height := integer(CW_USEDEFAULT);
aWindowInfo.parent_window := aParent;
aWindowInfo.menu := 0;
aWindowInfo.windowless_rendering_enabled := ord(False);
aWindowInfo.shared_texture_enabled := ord(False);
aWindowInfo.external_begin_frame_enabled := ord(False);
aWindowInfo.window := 0;
end;
procedure WindowInfoAsWindowless(var aWindowInfo : TCefWindowInfo; aParent : TCefWindowHandle; const aWindowName : ustring; aExStyle : DWORD);
begin
aWindowInfo.ex_style := aExStyle;
aWindowInfo.window_name := CefString(aWindowName);
aWindowInfo.style := 0;
aWindowInfo.bounds.x := 0;
aWindowInfo.bounds.y := 0;
aWindowInfo.bounds.width := 0;
aWindowInfo.bounds.height := 0;
aWindowInfo.parent_window := aParent;
aWindowInfo.menu := 0;
aWindowInfo.windowless_rendering_enabled := ord(True);
aWindowInfo.shared_texture_enabled := ord(False);
aWindowInfo.external_begin_frame_enabled := ord(False);
aWindowInfo.window := 0;
end;
{$ENDIF}
{$IFDEF MACOSX}
procedure WindowInfoAsChild(var aWindowInfo : TCefWindowInfo; aParent : TCefWindowHandle; aRect : TRect; const aWindowName : ustring; aHidden : boolean);
begin
aWindowInfo.window_name := CefString(aWindowName);
aWindowInfo.bounds.x := aRect.left;
aWindowInfo.bounds.y := aRect.top;
aWindowInfo.bounds.width := aRect.right - aRect.left;
aWindowInfo.bounds.height := aRect.bottom - aRect.top;
aWindowInfo.hidden := Ord(aHidden);
aWindowInfo.parent_view := aParent;
aWindowInfo.windowless_rendering_enabled := ord(False);
aWindowInfo.shared_texture_enabled := ord(False);
aWindowInfo.external_begin_frame_enabled := ord(False);
{$IFDEF FPC}
aWindowInfo.view := 0;
{$ELSE}
aWindowInfo.view := nil;
{$ENDIF}
end;
procedure WindowInfoAsPopUp(var aWindowInfo : TCefWindowInfo; aParent : TCefWindowHandle; const aWindowName : ustring; aHidden : boolean);
begin
aWindowInfo.window_name := CefString(aWindowName);
aWindowInfo.bounds.x := 0;
aWindowInfo.bounds.y := 0;
aWindowInfo.bounds.width := 0;
aWindowInfo.bounds.height := 0;
aWindowInfo.hidden := Ord(aHidden);
aWindowInfo.parent_view := aParent;
aWindowInfo.windowless_rendering_enabled := ord(False);
aWindowInfo.shared_texture_enabled := ord(False);
aWindowInfo.external_begin_frame_enabled := ord(False);
{$IFDEF FPC}
aWindowInfo.view := 0;
{$ELSE}
aWindowInfo.view := nil;
{$ENDIF}
end;
procedure WindowInfoAsWindowless(var aWindowInfo : TCefWindowInfo; aParent : TCefWindowHandle; const aWindowName : ustring; aHidden : boolean);
begin
aWindowInfo.window_name := CefString(aWindowName);
aWindowInfo.bounds.x := 0;
aWindowInfo.bounds.y := 0;
aWindowInfo.bounds.width := 0;
aWindowInfo.bounds.height := 0;
aWindowInfo.hidden := Ord(aHidden);
aWindowInfo.parent_view := aParent;
aWindowInfo.windowless_rendering_enabled := ord(True);
aWindowInfo.shared_texture_enabled := ord(False);
aWindowInfo.external_begin_frame_enabled := ord(False);
{$IFDEF FPC}
aWindowInfo.view := 0;
{$ELSE}
aWindowInfo.view := nil;
{$ENDIF}
end;
{$ENDIF}
{$IFDEF LINUX}
procedure WindowInfoAsChild(var aWindowInfo : TCefWindowInfo; aParent : TCefWindowHandle; aRect : TRect; const aWindowName : ustring = '');
var
TempParent : TCefWindowHandle;
begin
TempParent := aParent;
{$IFDEF FPC}
{$IFDEF LCLGTK2}
if ValidCefWindowHandle(aParent) and (PGtkWidget(aParent)^.window <> nil) then
TempParent := gdk_window_xwindow(PGtkWidget(aParent)^.window);
{$ENDIF}
{$IFDEF LCLGTK3}
if ValidCefWindowHandle(aParent) then
TempParent := gdk_x11_window_get_xid(TGtk3Container(aParent).Widget^.window);
{$ENDIF}
{$ENDIF}
aWindowInfo.window_name := CefString(aWindowName);
aWindowInfo.bounds.x := aRect.left;
aWindowInfo.bounds.y := aRect.top;
aWindowInfo.bounds.width := aRect.right - aRect.left;
aWindowInfo.bounds.height := aRect.bottom - aRect.top;
aWindowInfo.parent_window := TempParent;
aWindowInfo.windowless_rendering_enabled := ord(False);
aWindowInfo.shared_texture_enabled := ord(False);
aWindowInfo.external_begin_frame_enabled := ord(False);
aWindowInfo.window := 0;
end;
// WindowInfoAsPopUp only exists for Windows. The Linux version of cefclient
// calls WindowInfoAsChild with aParent set to NULL to create a popup window.
procedure WindowInfoAsPopUp(var aWindowInfo : TCefWindowInfo; aParent : TCefWindowHandle; const aWindowName : ustring = '');
begin
aWindowInfo.window_name := CefString(aWindowName);
aWindowInfo.bounds.x := 0;
aWindowInfo.bounds.y := 0;
aWindowInfo.bounds.width := 0;
aWindowInfo.bounds.height := 0;
aWindowInfo.parent_window := aParent;
aWindowInfo.windowless_rendering_enabled := ord(False);
aWindowInfo.shared_texture_enabled := ord(False);
aWindowInfo.external_begin_frame_enabled := ord(False);
aWindowInfo.window := 0;
end;
procedure WindowInfoAsWindowless(var aWindowInfo : TCefWindowInfo; aParent : TCefWindowHandle; const aWindowName : ustring = '');
begin
aWindowInfo.window_name := CefString(aWindowName);
aWindowInfo.bounds.x := 0;
aWindowInfo.bounds.y := 0;
aWindowInfo.bounds.width := 0;
aWindowInfo.bounds.height := 0;
aWindowInfo.parent_window := aParent;
aWindowInfo.windowless_rendering_enabled := ord(True);
aWindowInfo.shared_texture_enabled := ord(False);
aWindowInfo.external_begin_frame_enabled := ord(False);
aWindowInfo.window := 0;
end;
{$ENDIF}
function CefIsCertStatusError(Status : TCefCertStatus) : boolean;
begin
Result := (GlobalCEFApp <> nil) and
GlobalCEFApp.LibLoaded and
(cef_is_cert_status_error(Status) <> 0);
end;
function CefCrashReportingEnabled : boolean;
begin
Result := (GlobalCEFApp <> nil) and
GlobalCEFApp.LibLoaded and
(cef_crash_reporting_enabled() <> 0);
end;
procedure CefSetCrashKeyValue(const aKey, aValue : ustring);
var
TempKey, TempValue : TCefString;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
TempKey := CefString(aKey);
TempValue := CefString(aValue);
cef_set_crash_key_value(@TempKey, @TempValue);
end;
end;
procedure CefLog(const aFile : string; aLine, aSeverity : integer; const aMessage : string);
var
TempFile, TempMessage : AnsiString;
begin
if (length(aFile) > 0) and (length(aMessage) > 0) then
begin
TempFile := AnsiString(aFile);
TempMessage := AnsiString(aMessage);
cef_log(@TempFile[1], aLine, aSeverity, @TempMessage[1]);
end;
end;
function CefGetMinLogLevel: integer;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
Result := cef_get_min_log_level()
else
Result := 0;
end;
function CefGetVLogLevel(const file_start : string): integer;
var
TempFile : AnsiString;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded and (length(file_start) > 0) then
begin
TempFile := AnsiString(file_start + #0);
Result := cef_get_vlog_level(@TempFile[1], length(file_start) + 1);
end
else
Result := 0;
end;
function CefGetLogSeverityName(aSeverity: integer): ustring;
begin
case aSeverity of
CEF_LOG_SEVERITY_VERBOSE : Result := 'VERBOSE';
CEF_LOG_SEVERITY_INFO : Result := 'INFO';
CEF_LOG_SEVERITY_WARNING : Result := 'WARNING';
CEF_LOG_SEVERITY_ERROR : Result := 'ERROR';
CEF_LOG_SEVERITY_FATAL : Result := 'FATAL';
else Result := 'UNKNOWN';
end;
end;
procedure CefDebugLog(const aMessage : string; aSeverity : integer);
const
DEFAULT_LINE = 1;
var
TempString : string;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
{$IFDEF MSWINDOWS}
TempString := 'PID: ' + IntToStr(GetCurrentProcessID) + ', TID: ' + IntToStr(GetCurrentThreadID);
{$ENDIF}
{$IFDEF LINUX}
{$IFDEF FPC}
TempString := 'PID: ' + IntToStr(GetProcessID()) + ', TID: ' + IntToStr(GetCurrentThreadID());
{$ELSE}
// TO-DO: Find the equivalent function to get the process ID in Delphi FMX for Linux
{$ENDIF}
{$ENDIF}
{$IFDEF MACOSX}
{$IFDEF FPC}
// TO-DO: Find the equivalent function to get the process ID in Lazarus/FPC for MacOS
{$ELSE}
TempString := 'PID: ' + IntToStr(TNSProcessInfo.Wrap(TNSProcessInfo.OCClass.processInfo).processIdentifier) +
', TID: ' + IntToStr(TThread.Current.ThreadID);
{$ENDIF}
{$ENDIF}
case GlobalCEFApp.ProcessType of
ptBrowser : TempString := TempString + ', PT: Browser';
ptRenderer : TempString := TempString + ', PT: Renderer';
ptZygote : TempString := TempString + ', PT: Zygote';
ptGPU : TempString := TempString + ', PT: GPU';
ptUtility : TempString := TempString + ', PT: Utility';
ptOther : TempString := TempString + ', PT: Other';
end;
CefLog('CEF4Delphi', DEFAULT_LINE, aSeverity, TempString + ' - ' + aMessage);
end;
end;
procedure CefKeyEventLog(const aEvent : TCefKeyEvent);
const
DEFAULT_LINE = 1;
var
TempString : string;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
case aEvent.kind of
KEYEVENT_RAWKEYDOWN : TempString := 'kind: KEYEVENT_RAWKEYDOWN';
KEYEVENT_KEYDOWN : TempString := 'kind: KEYEVENT_KEYDOWN';
KEYEVENT_KEYUP : TempString := 'kind: KEYEVENT_KEYUP';
KEYEVENT_CHAR : TempString := 'kind: KEYEVENT_CHAR';
end;
TempString := TempString + ', modifiers: $' + inttohex(aEvent.modifiers, SizeOf(aEvent.modifiers) * 2);
TempString := TempString + ', windows_key_code: $' + inttohex(aEvent.windows_key_code, SizeOf(aEvent.windows_key_code) * 2);
TempString := TempString + ', native_key_code: $' + inttohex(aEvent.native_key_code, SizeOf(aEvent.native_key_code) * 2);
TempString := TempString + ', is_system_key: ' + BoolToStr((aEvent.is_system_key <> 0), true);
TempString := TempString + ', character: $' + inttohex(ord(aEvent.character), SizeOf(aEvent.character) * 2);
TempString := TempString + ', unmodified_character: $' + inttohex(ord(aEvent.unmodified_character), SizeOf(aEvent.unmodified_character) * 2);
TempString := TempString + ', focus_on_editable_field: ' + BoolToStr((aEvent.focus_on_editable_field <> 0), true);;
CefLog('CEF4Delphi', DEFAULT_LINE, CEF_LOG_SEVERITY_INFO, TempString);
end;
end;
procedure CefMouseEventLog(const aEvent : TCefMouseEvent);
const
DEFAULT_LINE = 1;
var
TempString : string;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
TempString := TempString + ', x: $' + inttohex(aEvent.x, SizeOf(aEvent.x) * 2);
TempString := TempString + ', y: $' + inttohex(aEvent.y, SizeOf(aEvent.y) * 2);
TempString := TempString + ', modifiers: $' + inttohex(aEvent.modifiers, SizeOf(aEvent.modifiers) * 2);
CefLog('CEF4Delphi', DEFAULT_LINE, CEF_LOG_SEVERITY_INFO, TempString);
end;
end;
procedure OutputDebugMessage(const aMessage : string);
const
DEFAULT_LINE = 1;
begin
{$IFDEF DEBUG}
{$IFDEF MSWINDOWS}
{$IFDEF FMX}
FMX.Types.Log.d(aMessage);
{$ELSE}
OutputDebugString({$IFDEF DELPHI12_UP}PWideChar{$ELSE}PAnsiChar{$ENDIF}(aMessage + chr(0)));
{$ENDIF}
{$ENDIF}
{$IFDEF LINUX}
{$IFDEF FPC}
// TO-DO: Find a way to write in the error console using Lazarus in Linux
{$ELSE}
FMX.Types.Log.d(aMessage);
{$ENDIF}
{$ENDIF}
{$IFDEF MACOSX}
{$IFDEF FPC}
// TO-DO: Find a way to write in the error console using Lazarus in MacOS
{$ELSE}
FMX.Types.Log.d(aMessage);
{$ENDIF}
{$ENDIF}
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
CefLog('CEF4Delphi', DEFAULT_LINE, CEF_LOG_SEVERITY_ERROR, aMessage);
{$ENDIF}
end;
function CustomExceptionHandler(const aFunctionName : string; const aException : exception) : boolean;
begin
OutputDebugMessage(aFunctionName + ' error : ' + aException.message);
Result := (GlobalCEFApp <> nil) and GlobalCEFApp.ReRaiseExceptions;
end;
function CefRegisterSchemeHandlerFactory(const SchemeName : ustring;
const DomainName : ustring;
const handler : TCefResourceHandlerClass) : boolean;
var
TempScheme, TempDomainName : TCefString;
TempFactory : ICefSchemeHandlerFactory;
TempDomainNamePtr : PCefString;
begin
Result := False;
try
if (GlobalCEFApp <> nil) and
GlobalCEFApp.LibLoaded and
(length(SchemeName) > 0) then
begin
if (length(DomainName) > 0) then
begin
TempDomainName := CefString(DomainName);
TempDomainNamePtr := @TempDomainName;
end
else
TempDomainNamePtr := nil;
TempScheme := CefString(SchemeName);
TempFactory := TCefSchemeHandlerFactoryOwn.Create(handler);
Result := cef_register_scheme_handler_factory(@TempScheme, TempDomainNamePtr, TempFactory.Wrap) <> 0;
end;
finally
TempFactory := nil;
end;
end;
function CefClearSchemeHandlerFactories : boolean;
begin
Result := (GlobalCEFApp <> nil) and
GlobalCEFApp.LibLoaded and
(cef_clear_scheme_handler_factories() <> 0);
end;
function CefAddCrossOriginWhitelistEntry(const SourceOrigin : ustring;
const TargetProtocol : ustring;
const TargetDomain : ustring;
AllowTargetSubdomains : Boolean): Boolean;
var
TempSourceOrigin, TempTargetProtocol, TempTargetDomain : TCefString;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
TempSourceOrigin := CefString(SourceOrigin);
TempTargetProtocol := CefString(TargetProtocol);
TempTargetDomain := CefString(TargetDomain);
Result := cef_add_cross_origin_whitelist_entry(@TempSourceOrigin,
@TempTargetProtocol,
@TempTargetDomain,
Ord(AllowTargetSubdomains)) <> 0;
end
else
Result := False;
end;
function CefRemoveCrossOriginWhitelistEntry(const SourceOrigin : ustring;
const TargetProtocol : ustring;
const TargetDomain : ustring;
AllowTargetSubdomains : Boolean): Boolean;
var
TempSourceOrigin, TempTargetProtocol, TempTargetDomain : TCefString;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
TempSourceOrigin := CefString(SourceOrigin);
TempTargetProtocol := CefString(TargetProtocol);
TempTargetDomain := CefString(TargetDomain);
Result := cef_remove_cross_origin_whitelist_entry(@TempSourceOrigin,
@TempTargetProtocol,
@TempTargetDomain,
Ord(AllowTargetSubdomains)) <> 0;
end
else
Result := False;
end;
function CefClearCrossOriginWhitelist: Boolean;
begin
Result := cef_clear_cross_origin_whitelist() <> 0;
end;
function SplitLongString(aSrcString : string) : string;
const
MAXLINELENGTH = 50;
begin
Result := '';
while (length(aSrcString) > 0) do
begin
if (Result <> '') then
Result := Result + CRLF + copy(aSrcString, 1, MAXLINELENGTH)
else
Result := Result + copy(aSrcString, 1, MAXLINELENGTH);
aSrcString := copy(aSrcString, succ(MAXLINELENGTH), length(aSrcString));
end;
end;
function GetAbsoluteDirPath(const aSrcPath : string; var aRsltPath : string) : boolean;
begin
Result := True;
if (length(aSrcPath) > 0) then
begin
aRsltPath := IncludeTrailingPathDelimiter(CustomAbsolutePath(aSrcPath));
Result := DirectoryExists(aRsltPath);
end
else
aRsltPath := '';
end;
function CheckLocales(const aLocalesDirPath : string; var aMissingFiles : string; const aLocalesRequired : string) : boolean;
const
LOCALES_REQUIRED_DEFAULT =
'am,' +
'ar,' +
'bg,' +
'bn,' +
'ca,' +
'cs,' +
'da,' +
'de,' +
'el,' +
'en-GB,' +
'en-US,' +
'es,' +
'es-419,' +
'et,' +
'fa,' +
'fi,' +
'fil,' +
'fr,' +
'gu,' +
'he,' +
'hi,' +
'hr,' +
'hu,' +
'id,' +
'it,' +
'ja,' +
'kn,' +
'ko,' +
'lt,' +
'lv,' +
'ml,' +
'mr,' +
'ms,' +
'nb,' +
'nl,' +
'pl,' +
'pt-BR,' +
'pt-PT,' +
'ro,' +
'ru,' +
'sk,' +
'sl,' +
'sr,' +
'sv,' +
'sw,' +
'ta,' +
'te,' +
'th,' +
'tr,' +
'uk,' +
'vi,' +
'zh-CN,' +
'zh-TW';
var
i : integer;
TempDir : string;
TempList : TStringList;
begin
Result := False;
TempList := nil;
try
try
if (length(aLocalesDirPath) > 0) then
TempDir := IncludeTrailingPathDelimiter(aLocalesDirPath)
else
TempDir := 'locales' + PathDelim;
TempList := TStringList.Create;
if (length(aLocalesRequired) > 0) then
TempList.CommaText := aLocalesRequired
else
TempList.CommaText := LOCALES_REQUIRED_DEFAULT;
i := 0;
while (i < TempList.Count) do
begin
TempList[i] := TempDir + TempList[i] + '.pak';
inc(i);
end;
if DirectoryExists(TempDir) then
Result := CheckFilesExist(TempList, aMissingFiles)
else
aMissingFiles := trim(aMissingFiles) + CRLF + TempList.Text;
except
on e : exception do
if CustomExceptionHandler('CheckLocales', e) then raise;
end;
finally
if (TempList <> nil) then FreeAndNil(TempList);
end;
end;
function CheckResources(const aResourcesDirPath : string; var aMissingFiles : string) : boolean;
var
TempDir : string;
TempList : TStringList;
TempExists : boolean;
begin
Result := False;
try
try
TempExists := GetAbsoluteDirPath(aResourcesDirPath, TempDir);
TempList := TStringList.Create;
TempList.Add(TempDir + 'snapshot_blob.bin');
TempList.Add(TempDir + 'v8_context_snapshot.bin');
TempList.Add(TempDir + 'resources.pak');
TempList.Add(TempDir + 'chrome_100_percent.pak');
TempList.Add(TempDir + 'chrome_200_percent.pak');
if TempExists then
Result := CheckFilesExist(TempList, aMissingFiles)
else
aMissingFiles := trim(aMissingFiles) + CRLF + TempList.Text;
except
on e : exception do
if CustomExceptionHandler('CheckResources', e) then raise;
end;
finally
if (TempList <> nil) then FreeAndNil(TempList);
end;
end;
function CheckSubprocessPath(const aSubprocessPath : string; var aMissingFiles : string) : boolean;
begin
Result := False;
try
if (length(aSubprocessPath) = 0) or FileExists(aSubprocessPath) then
Result := True
else
aMissingFiles := trim(aMissingFiles) + CRLF + ExtractFileName(aSubprocessPath);
except
on e : exception do
if CustomExceptionHandler('CheckSubprocessPath', e) then raise;
end;
end;
function CheckDLLs(const aFrameworkDirPath : string; var aMissingFiles : string) : boolean;
var
TempDir : string;
TempList : TStringList;
TempExists : boolean;
begin
Result := False;
TempList := nil;
try
try
TempExists := GetAbsoluteDirPath(aFrameworkDirPath, TempDir);
// The icudtl.dat file must be placed next to libcef.dll
// http://www.magpcss.org/ceforum/viewtopic.php?f=6&t=14503#p32263
TempList := TStringList.Create;
TempList.Add(TempDir + LIBCEF_DLL);
{$IFDEF MSWINDOWS}
TempList.Add(TempDir + CHROMEELF_DLL);
TempList.Add(TempDir + 'd3dcompiler_47.dll');
TempList.Add(TempDir + 'vk_swiftshader.dll');
TempList.Add(TempDir + 'vk_swiftshader_icd.json');
TempList.Add(TempDir + 'vulkan-1.dll');
TempList.Add(TempDir + 'libEGL.dll');
TempList.Add(TempDir + 'libGLESv2.dll');
{$ENDIF}
{$IFDEF LINUX}
TempList.Add(TempDir + 'libEGL.so');
TempList.Add(TempDir + 'libGLESv2.so');
TempList.Add(TempDir + 'libvk_swiftshader.so');
TempList.Add(TempDir + 'vk_swiftshader_icd.json');
TempList.Add(TempDir + 'libvulkan.so.1');
{$ENDIF}
TempList.Add(TempDir + 'icudtl.dat');
if TempExists then
Result := CheckFilesExist(TempList, aMissingFiles)
else
aMissingFiles := trim(aMissingFiles) + CRLF + TempList.Text;
except
on e : exception do
if CustomExceptionHandler('CheckDLLs', e) then raise;
end;
finally
if (TempList <> nil) then FreeAndNil(TempList);
end;
end;
function CheckFilesExist(var aList : TStringList; var aMissingFiles : string) : boolean;
var
i : integer;
begin
Result := True;
try
if (aList <> nil) then
begin
i := 0;
while (i < aList.Count) do
begin
if (length(aList[i]) > 0) and not(FileExists(aList[i])) then
begin
Result := False;
aMissingFiles := aMissingFiles + aList[i] + CRLF;
end;
inc(i);
end;
end;
except
on e : exception do
if CustomExceptionHandler('CheckFilesExist', e) then raise;
end;
end;
procedure UInt64ToFileVersionInfo(const aVersion : uint64; var aVersionInfo : TFileVersionInfo);
begin
aVersionInfo.MajorVer := uint16(aVersion shr 48);
aVersionInfo.MinorVer := uint16((aVersion shr 32) and $FFFF);
aVersionInfo.Release := uint16((aVersion shr 16) and $FFFF);
aVersionInfo.Build := uint16(aVersion and $FFFF);
end;
{$IFDEF MSWINDOWS}
function GetExtendedFileVersion(const aFileName : ustring) : uint64;
var
TempSize : DWORD;
TempBuffer : pointer;
TempLen : UINT;
TempHandle : cardinal;
TempInfo : PVSFixedFileInfo;
begin
Result := 0;
TempBuffer := nil;
TempHandle := 0;
TempLen := 0;
try
try
TempSize := GetFileVersionInfoSizeW(PWideChar(aFileName), TempHandle);
if (TempSize > 0) then
begin
GetMem(TempBuffer, TempSize);
if GetFileVersionInfoW(PWideChar(aFileName), TempHandle, TempSize, TempBuffer) and
VerQueryValue(TempBuffer, '\', Pointer(TempInfo), TempLen) then
begin
Result := TempInfo^.dwFileVersionMS;
Result := Result shl 32;
Result := Result or TempInfo^.dwFileVersionLS;
end;
end
else
OutputLastErrorMessage;
except
on e : exception do
if CustomExceptionHandler('GetExtendedFileVersion', e) then raise;
end;
finally
if (TempBuffer <> nil) then FreeMem(TempBuffer);
end;
end;
procedure OutputLastErrorMessage;
begin
{$IFDEF DEBUG}
OutputDebugString({$IFDEF DELPHI12_UP}PWideChar{$ELSE}PAnsiChar{$ENDIF}(SysErrorMessage(GetLastError()) + chr(0)));
{$ENDIF}
end;
function GetRegistryWindowsVersion(var aMajor, aMinor: cardinal) : boolean;
const
SUBKEY = '\SOFTWARE\Microsoft\Windows NT\CurrentVersion';
var
TempRegKey : TRegistry;
TempBuild : integer;
begin
Result := False;
aMajor := 0;
aMinor := 0;
TempRegKey := nil;
try
try
TempRegKey := TRegistry.Create(KEY_READ);
TempRegKey.RootKey := HKEY_LOCAL_MACHINE;
if TempRegKey.KeyExists(SUBKEY) and
TempRegKey.OpenKeyReadOnly(SUBKEY) then
try
if TempRegKey.ValueExists('CurrentMajorVersionNumber') and
TempRegKey.ValueExists('CurrentMinorVersionNumber') then
begin
aMajor := TempRegKey.ReadInteger('CurrentMajorVersionNumber');
aMinor := TempRegKey.ReadInteger('CurrentMinorVersionNumber');
Result := True;
end
else
if TempRegKey.ValueExists('CurrentBuildNumber') then
begin
TempBuild := StrToIntDef(TempRegKey.ReadString('CurrentBuildNumber'), 0);
if (TempBuild >= 22000) then // Windows 11
begin
aMajor := 10;
aMinor := 0;
Result := True;
end
else
if (TempBuild >= 10240) then // Windows 10
begin
aMajor := 10;
aMinor := 0;
Result := True;
end
else
if (TempBuild >= 9600) then // Windows 8.1
begin
aMajor := 6;
aMinor := 3;
Result := True;
end
else
if (TempBuild >= 9200) then // Windows 8
begin
aMajor := 6;
aMinor := 2;
Result := True;
end
else
if (TempBuild >= 7600) then // Windows 7
begin
aMajor := 6;
aMinor := 1;
Result := True;
end
else
if (TempBuild >= 6000) then // Windows Vista
begin
aMajor := 6;
aMinor := 0;
Result := True;
end
else
if (TempBuild >= 3790) then // Windows Server 2003
begin
aMajor := 5;
aMinor := 2;
Result := True;
end
else
if (TempBuild >= 2600) then // Windows XP
begin
aMajor := 5;
aMinor := 1;
Result := True;
end
else
if (TempBuild >= 2195) then // Windows 2000
begin
aMajor := 5;
aMinor := 0;
Result := True;
end;
end;
finally
TempRegKey.CloseKey;
end;
except
on e : exception do
if CustomExceptionHandler('GetRegistryWindowsVersion', e) then raise;
end;
finally
if assigned(TempRegKey) then
FreeAndNil(TempRegKey);
end;
end;
function GetRealWindowsVersion(var aMajor, aMinor: cardinal) : boolean;
type
SERVER_INFO_101 = record
sv101_platform_id : DWORD;
sv101_name : LPWSTR;
sv101_version_major : DWORD;
sv101_version_minor : DWORD;
sv101_type : DWORD;
sv101_comment : LPWSTR;
end;
PSERVER_INFO_101 = ^SERVER_INFO_101;
const
MAJOR_VERSION_MASK = $0F;
NO_ERROR = 0;
var
TempBuffer : PSERVER_INFO_101;
begin
Result := False;
aMajor := 0;
aMinor := 0;
TempBuffer := nil;
if (NetServerGetInfo(nil, 101, Pointer(TempBuffer)) = NO_ERROR) then
try
aMajor := TempBuffer^.sv101_version_major and MAJOR_VERSION_MASK;
aMinor := TempBuffer^.sv101_version_minor;
Result := True;
finally
NetApiBufferFree(TempBuffer);
end;
end;
function CheckRealWindowsVersion(aMajor, aMinor: cardinal) : boolean;
var
TempMajor, TempMinor : cardinal;
TempResultAPI, TempResultReg : boolean;
begin
TempResultAPI := GetRealWindowsVersion(TempMajor, TempMinor) and
((TempMajor > aMajor) or
((TempMajor = aMajor) and (TempMinor >= aMinor)));
TempResultReg := GetRegistryWindowsVersion(TempMajor, TempMinor) and
((TempMajor > aMajor) or
((TempMajor = aMajor) and (TempMinor >= aMinor)));
Result := TempResultAPI or TempResultReg;
end;
function GetDLLVersion(const aDLLFile : ustring; var aVersionInfo : TFileVersionInfo) : boolean;
var
TempVersion : uint64;
begin
Result := False;
try
if FileExists(aDLLFile) then
begin
TempVersion := GetExtendedFileVersion(aDLLFile);
if (TempVersion <> 0) then
begin
UInt64ToFileVersionInfo(TempVersion, aVersionInfo);
Result := True;
end;
end;
except
on e : exception do
if CustomExceptionHandler('GetDLLVersion', e) then raise;
end;
end;
function CheckDLLVersion(const aDLLFile : ustring; aMajor, aMinor, aRelease, aBuild : uint16) : boolean;
var
TempVersionInfo : TFileVersionInfo;
begin
Result := GetDLLVersion(aDLLFile, TempVersionInfo) and
(TempVersionInfo.MajorVer = aMajor) and
(TempVersionInfo.MinorVer = aMinor) and
(TempVersionInfo.Release = aRelease) and
(TempVersionInfo.Build = aBuild);
end;
// This function is based on the answer given by 'Alex' in StackOverflow
// https://stackoverflow.com/questions/2748474/how-to-determine-if-dll-file-was-compiled-as-x64-or-x86-bit-using-either-delphi
function GetDLLHeaderMachine(const aDLLFile : ustring; var aMachine : integer) : boolean;
var
TempHeader : TImageDosHeader;
TempImageNtHeaders : TImageNtHeaders;
TempStream : TFileStream;
begin
Result := False;
aMachine := IMAGE_FILE_MACHINE_UNKNOWN;
TempStream := nil;
try
try
if FileExists(aDLLFile) then
begin
TempStream := TFileStream.Create(aDLLFile, fmOpenRead or fmShareDenyWrite);
TempStream.seek(0, soFromBeginning);
TempStream.ReadBuffer(TempHeader, SizeOf(TempHeader));
if (TempHeader.e_magic = IMAGE_DOS_SIGNATURE) and
(TempHeader._lfanew <> 0) then
begin
TempStream.Position := TempHeader._lfanew;
TempStream.ReadBuffer(TempImageNtHeaders, SizeOf(TempImageNtHeaders));
if (TempImageNtHeaders.Signature = IMAGE_NT_SIGNATURE) then
begin
aMachine := TempImageNtHeaders.FileHeader.Machine;
Result := True;
end;
end;
end;
except
on e : exception do
if CustomExceptionHandler('GetDLLHeaderMachine', e) then raise;
end;
finally
if (TempStream <> nil) then FreeAndNil(TempStream);
end;
end;
function GetFileTypeDescription(const aExtension : ustring) : ustring;
var
TempInfo : SHFILEINFOW;
TempExt : ustring;
begin
Result := '';
if (length(aExtension) > 0) then
begin
if (aExtension[1] = '.') then
TempExt := aExtension
else
TempExt := '.' + aExtension;
if (SHGetFileInfoW(@TempExt[1],
FILE_ATTRIBUTE_NORMAL,
TempInfo,
SizeOf(SHFILEINFO),
SHGFI_TYPENAME or SHGFI_USEFILEATTRIBUTES) <> 0) then
Result := TempInfo.szTypeName;
end;
end;
{$ELSE}
function GetFileTypeDescription(const aExtension : ustring) : ustring;
begin
Result := uppercase(aExtension) + ' files';
end;
{$ENDIF}
function FileVersionInfoToString(const aVersionInfo : TFileVersionInfo) : string;
begin
Result := IntToStr(aVersionInfo.MajorVer) + '.' +
IntToStr(aVersionInfo.MinorVer) + '.' +
IntToStr(aVersionInfo.Release) + '.' +
IntToStr(aVersionInfo.Build);
end;
{$IFDEF MSWINDOWS}
function Is32BitProcessRunningIn64BitOS : boolean;
var
TempResult : BOOL;
begin
Result := ProcessUnderWow64(GetCurrentProcess, @TempResult) and
TempResult;
end;
{$ENDIF}
function Is32BitProcess : boolean;
begin
{$IFDEF TARGET_32BITS}
Result := True;
{$ELSE}
{$IFDEF MSWINDOWS}
Result := Is32BitProcessRunningIn64BitOS;
{$ELSE}
{$IFDEF DELPHI17_UP}
Result := TOSVersion.Architecture in [arIntelX86, arARM32];
{$ELSE}
Result := False;
{$ENDIF}
{$ENDIF}
{$ENDIF}
end;
function CustomPathIsRelative(const aPath : string) : boolean;
begin
{$IFDEF MSWINDOWS}
{$IFDEF DELPHI12_UP}
Result := PathIsRelativeUnicode(PChar(aPath));
{$ELSE}
Result := PathIsRelativeAnsi(PChar(aPath));
{$ENDIF}
{$ELSE}
Result := (length(aPath) > 0) and (aPath[1] <> '/');
{$ENDIF}
end;
function CustomPathIsURL(const aPath : string) : boolean;
begin
{$IFDEF MSWINDOWS}
{$IFDEF DELPHI12_UP}
Result := PathIsURLUnicode(PChar(aPath + #0));
{$ELSE}
Result := PathIsURLAnsi(PChar(aPath + #0));
{$ENDIF}
{$ELSE}
Result := False;
{$ENDIF}
end;
function CustomPathIsUNC(const aPath : string) : boolean;
begin
{$IFDEF MSWINDOWS}
{$IFDEF DELPHI12_UP}
Result := PathIsUNCUnicode(PChar(aPath + #0));
{$ELSE}
Result := PathIsUNCAnsi(PChar(aPath + #0));
{$ENDIF}
{$ELSE}
Result := False;
{$ENDIF}
end;
function CustomPathCanonicalize(const aOriginalPath : string; var aCanonicalPath : string) : boolean;
var
TempBuffer: array [0..pred(MAX_PATH)] of Char;
begin
Result := False;
aCanonicalPath := '';
if (length(aOriginalPath) > MAX_PATH) or
(Copy(aOriginalPath, 1, 4) = '\\?\') or
CustomPathIsUNC(aOriginalPath) then
exit;
FillChar(TempBuffer, MAX_PATH * SizeOf(Char), 0);
{$IFDEF MSWINDOWS}
{$IFDEF DELPHI12_UP}
if PathCanonicalizeUnicode(@TempBuffer[0], PChar(aOriginalPath + #0)) then
begin
aCanonicalPath := TempBuffer;
Result := True;
end;
{$ELSE}
if PathCanonicalizeAnsi(@TempBuffer[0], PChar(aOriginalPath + #0)) then
begin
aCanonicalPath := TempBuffer;
Result := True;
end;
{$ENDIF}
{$ENDIF}
end;
function CustomAbsolutePath(const aPath : string; aMustExist : boolean) : string;
var
TempNewPath, TempOldPath : string;
begin
if (length(aPath) > 0) then
begin
if CustomPathIsRelative(aPath) then
TempOldPath := GetModulePath + aPath
else
TempOldPath := aPath;
if not(CustomPathCanonicalize(TempOldPath, TempNewPath)) then
TempNewPath := TempOldPath;
if aMustExist and not(DirectoryExists(TempNewPath)) then
Result := ''
else
Result := TempNewPath;
end
else
Result := '';
end;
function GetModulePath : string;
{$IFDEF MACOSX}
const
MAC_APP_POSTFIX = '.app/';
MAC_APP_SUBPATH = 'Contents/MacOS/';
{$ENDIF}
begin
{$IFDEF MSWINDOWS}
Result := IncludeTrailingPathDelimiter(ExtractFileDir(GetModuleName(HINSTANCE{$IFDEF FPC}(){$ENDIF})));
{$ENDIF}
{$IFDEF LINUX}
Result := IncludeTrailingPathDelimiter(ExtractFileDir(ParamStr(0)));
{$ENDIF}
{$IFDEF MACOSX}
Result := IncludeTrailingPathDelimiter(ExtractFileDir(ParamStr(0)));
{$IFDEF FPC}
if copy(Result, Length(Result) + 1 - Length(MAC_APP_POSTFIX) - Length(MAC_APP_SUBPATH)) = MAC_APP_POSTFIX + MAC_APP_SUBPATH then
SetLength(Result, Length(Result) - Length(MAC_APP_SUBPATH));
Result := CreateAbsolutePath(Result, GetCurrentDirUTF8);
{$ELSE}
if Result.Contains(MAC_APP_POSTFIX + MAC_APP_SUBPATH) then
Result := Result.Remove(Result.IndexOf(MAC_APP_SUBPATH));
{$ENDIF}
{$ENDIF}
end;
function CefResolveUrl(const base_url, relative_url: ustring): ustring;
var
TempBaseURL, TempRelativeURL, TempResolvedURL : TCefString;
begin
Result := '';
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
TempBaseURL := CefString(base_url);
TempRelativeURL := CefString(relative_url);
CefStringInitialize(@TempResolvedURL);
if (cef_resolve_url(@TempBaseURL, @TempRelativeURL, @TempResolvedURL) <> 0) then
Result := CefStringClearAndGet(@TempResolvedURL);
end;
end;
function CefParseUrl(const url: ustring; var parts: TUrlParts): Boolean;
var
TempURL : TCefString;
TempParts : TCefUrlParts;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
FillChar(TempParts, sizeof(TempParts), 0);
TempURL := CefString(url);
Result := cef_parse_url(@TempURL, TempParts) <> 0;
if Result then
begin
parts.spec := CefString(@TempParts.spec);
parts.scheme := CefString(@TempParts.scheme);
parts.username := CefString(@TempParts.username);
parts.password := CefString(@TempParts.password);
parts.host := CefString(@TempParts.host);
parts.port := CefString(@TempParts.port);
parts.origin := CefString(@TempParts.origin);
parts.path := CefString(@TempParts.path);
parts.query := CefString(@TempParts.query);
parts.fragment := CefString(@TempParts.fragment);
end;
end
else
Result := False;
end;
function CefCreateUrl(var parts: TUrlParts): ustring;
var
TempURL : TCefString;
TempParts : TCefUrlParts;
begin
Result := '';
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
TempParts.spec := CefString(parts.spec);
TempParts.scheme := CefString(parts.scheme);
TempParts.username := CefString(parts.username);
TempParts.password := CefString(parts.password);
TempParts.host := CefString(parts.host);
TempParts.port := CefString(parts.port);
TempParts.origin := CefString(parts.origin);
TempParts.path := CefString(parts.path);
TempParts.query := CefString(parts.query);
TempParts.fragment := CefString(parts.fragment);
CefStringInitialize(@TempURL);
if (cef_create_url(@TempParts, @TempURL) <> 0) then
Result := CefStringClearAndGet(@TempURL);
end;
end;
function CefFormatUrlForSecurityDisplay(const originUrl: string): string;
var
TempOrigin : TCefString;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
TempOrigin := CefString(originUrl);
Result := CefStringFreeAndGet(cef_format_url_for_security_display(@TempOrigin));
end
else
Result := '';
end;
function CefGetMimeType(const extension: ustring): ustring;
var
TempExt : TCefString;
begin
TempExt := CefString(extension);
Result := CefStringFreeAndGet(cef_get_mime_type(@TempExt));
end;
procedure CefGetExtensionsForMimeType(const mimeType: ustring; var extensions: TStringList);
var
TempSL : ICefStringList;
TempMimeType : TCefString;
begin
if (extensions <> nil) and (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
TempSL := TCefStringListOwn.Create;
TempMimeType := CefString(mimeType);
cef_get_extensions_for_mime_type(@TempMimeType, TempSL.Handle);
TempSL.CopyToStrings(extensions);
end;
end;
function CefBase64Encode(const data: Pointer; dataSize: NativeUInt): ustring;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
Result := CefStringFreeAndGet(cef_base64encode(data, dataSize))
else
Result := '';
end;
function CefBase64Decode(const data: ustring): ICefBinaryValue;
var
TempData : TCefString;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
TempData := CefString(data);
Result := TCefBinaryValueRef.UnWrap(cef_base64decode(@TempData));
end
else
Result := nil;
end;
function CefUriEncode(const text: ustring; usePlus: Boolean): ustring;
var
TempText : TCefString;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
TempText := CefString(text);
Result := CefStringFreeAndGet(cef_uriencode(@TempText, Ord(usePlus)));
end
else
Result := '';
end;
function CefUriDecode(const text: ustring; convertToUtf8: Boolean; unescapeRule: TCefUriUnescapeRule): ustring;
var
TempText : TCefString;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
TempText := CefString(text);
Result := CefStringFreeAndGet(cef_uridecode(@TempText, Ord(convertToUtf8), unescapeRule));
end
else
Result := '';
end;
function CefGetPath(const aPathKey : TCefPathKey) : ustring;
var
TempPath : TCefString;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
CefStringInitialize(@TempPath);
if (cef_get_path(aPathKey, @TempPath) <> 0) then
Result := CefStringClearAndGet(@TempPath);
end
else
Result := '';
end;
function CefIsRTL : boolean;
begin
Result := (GlobalCEFApp <> nil) and
GlobalCEFApp.LibLoaded and
(cef_is_rtl() <> 0);
end;
function CefCreateDirectory(const fullPath: ustring): Boolean;
var
TempPath : TCefString;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
TempPath := CefString(fullPath);
Result := cef_create_directory(@TempPath) <> 0;
end
else
Result := False;
end;
function CefGetTempDirectory(out tempDir: ustring): Boolean;
var
TempPath : TCefString;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
CefStringInitialize(@TempPath);
Result := cef_get_temp_directory(@TempPath) <> 0;
tempDir := CefStringClearAndGet(@TempPath);
end
else
begin
Result := False;
tempDir := '';
end;
end;
function CefCreateNewTempDirectory(const prefix: ustring; out newTempPath: ustring): Boolean;
var
TempPath, TempPref : TCefString;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
CefStringInitialize(@TempPath);
TempPref := CefString(prefix);
Result := cef_create_new_temp_directory(@TempPref, @TempPath) <> 0;
newTempPath := CefStringClearAndGet(@TempPath);
end
else
begin
Result := False;
newTempPath := '';
end;
end;
function CefCreateTempDirectoryInDirectory(const baseDir, prefix: ustring; out newDir: ustring): Boolean;
var
TempBase, TempPath, TempPref: TCefString;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
CefStringInitialize(@TempPath);
TempPref := CefString(prefix);
TempBase := CefString(baseDir);
Result := cef_create_temp_directory_in_directory(@TempBase, @TempPref, @TempPath) <> 0;
newDir := CefStringClearAndGet(@TempPath);
end
else
begin
Result := False;
newDir := '';
end;
end;
function CefDirectoryExists(const path: ustring): Boolean;
var
TempPath : TCefString;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
TempPath := CefString(path);
Result := cef_directory_exists(@TempPath) <> 0;
end
else
Result := False;
end;
function CefDeleteFile(const path: ustring; recursive: Boolean): Boolean;
var
TempPath : TCefString;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
TempPath := CefString(path);
Result := cef_delete_file(@TempPath, Ord(recursive)) <> 0;
end
else
Result := False;
end;
function CefZipDirectory(const srcDir, destFile: ustring; includeHiddenFiles: Boolean): Boolean;
var
TempSrc, TempDst : TCefString;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
TempSrc := CefString(srcDir);
TempDst := CefString(destFile);
Result := cef_zip_directory(@TempSrc, @TempDst, Ord(includeHiddenFiles)) <> 0;
end
else
Result := False;
end;
procedure CefLoadCRLSetsFile(const path : ustring);
var
TempPath : TCefString;
begin
if (GlobalCEFApp <> nil) and GlobalCEFApp.LibLoaded then
begin
TempPath := CefString(path);
cef_load_crlsets_file(@TempPath);
end;
end;
{$IFDEF MSWINDOWS}
function CefIsKeyDown(aWparam : WPARAM) : boolean;
begin
Result := (GetKeyState(aWparam) < 0);
end;
function CefIsKeyToggled(aWparam : WPARAM) : boolean;
begin
Result := (GetKeyState(aWparam) and $1) <> 0;
end;
function GetCefMouseModifiers(aWparam : WPARAM) : TCefEventFlags;
begin
Result := EVENTFLAG_NONE;
if ((aWparam and MK_CONTROL) <> 0) then Result := Result or EVENTFLAG_CONTROL_DOWN;
if ((aWparam and MK_SHIFT) <> 0) then Result := Result or EVENTFLAG_SHIFT_DOWN;
if ((aWparam and MK_LBUTTON) <> 0) then Result := Result or EVENTFLAG_LEFT_MOUSE_BUTTON;
if ((aWparam and MK_MBUTTON) <> 0) then Result := Result or EVENTFLAG_MIDDLE_MOUSE_BUTTON;
if ((aWparam and MK_RBUTTON) <> 0) then Result := Result or EVENTFLAG_RIGHT_MOUSE_BUTTON;
if CefIsKeyDown(VK_MENU) then Result := Result or EVENTFLAG_ALT_DOWN;
if CefIsKeyToggled(VK_NUMLOCK) then Result := Result or EVENTFLAG_NUM_LOCK_ON;
if CefIsKeyToggled(VK_CAPITAL) then Result := Result or EVENTFLAG_CAPS_LOCK_ON;
end;
function GetCefMouseModifiers : TCefEventFlags;
begin
Result := EVENTFLAG_NONE;
if CefIsKeyDown(MK_CONTROL) then Result := Result or EVENTFLAG_CONTROL_DOWN;
if CefIsKeyDown(MK_SHIFT) then Result := Result or EVENTFLAG_SHIFT_DOWN;
if CefIsKeyDown(MK_LBUTTON) then Result := Result or EVENTFLAG_LEFT_MOUSE_BUTTON;
if CefIsKeyDown(MK_MBUTTON) then Result := Result or EVENTFLAG_MIDDLE_MOUSE_BUTTON;
if CefIsKeyDown(MK_RBUTTON) then Result := Result or EVENTFLAG_RIGHT_MOUSE_BUTTON;
if CefIsKeyDown(VK_MENU) then Result := Result or EVENTFLAG_ALT_DOWN;
if CefIsKeyToggled(VK_NUMLOCK) then Result := Result or EVENTFLAG_NUM_LOCK_ON;
if CefIsKeyToggled(VK_CAPITAL) then Result := Result or EVENTFLAG_CAPS_LOCK_ON;
end;
function GetCefKeyboardModifiers(aWparam : WPARAM; aLparam : LPARAM) : TCefEventFlags;
begin
Result := EVENTFLAG_NONE;
if CefIsKeyDown(VK_SHIFT) then Result := Result or EVENTFLAG_SHIFT_DOWN;
if CefIsKeyDown(VK_CONTROL) then Result := Result or EVENTFLAG_CONTROL_DOWN;
if CefIsKeyDown(VK_MENU) then Result := Result or EVENTFLAG_ALT_DOWN;
if CefIsKeyToggled(VK_NUMLOCK) then Result := Result or EVENTFLAG_NUM_LOCK_ON;
if CefIsKeyToggled(VK_CAPITAL) then Result := Result or EVENTFLAG_CAPS_LOCK_ON;
case aWparam of
VK_RETURN:
if (((aLparam shr 16) and KF_EXTENDED) <> 0) then
Result := Result or EVENTFLAG_IS_KEY_PAD;
VK_INSERT,
VK_DELETE,
VK_HOME,
VK_END,
VK_PRIOR,
VK_NEXT,
VK_UP,
VK_DOWN,
VK_LEFT,
VK_RIGHT :
if (((aLparam shr 16) and KF_EXTENDED) = 0) then
Result := Result or EVENTFLAG_IS_KEY_PAD;
VK_NUMLOCK,
VK_NUMPAD0,
VK_NUMPAD1,
VK_NUMPAD2,
VK_NUMPAD3,
VK_NUMPAD4,
VK_NUMPAD5,
VK_NUMPAD6,
VK_NUMPAD7,
VK_NUMPAD8,
VK_NUMPAD9,
VK_DIVIDE,
VK_MULTIPLY,
VK_SUBTRACT,
VK_ADD,
VK_DECIMAL,
VK_CLEAR :
Result := Result or EVENTFLAG_IS_KEY_PAD;
VK_SHIFT :
if CefIsKeyDown(VK_LSHIFT) then
Result := Result or EVENTFLAG_IS_LEFT
else
if CefIsKeyDown(VK_RSHIFT) then
Result := Result or EVENTFLAG_IS_RIGHT;
VK_CONTROL :
if CefIsKeyDown(VK_LCONTROL) then
Result := Result or EVENTFLAG_IS_LEFT
else
if CefIsKeyDown(VK_RCONTROL) then
Result := Result or EVENTFLAG_IS_RIGHT;
VK_MENU :
if CefIsKeyDown(VK_LMENU) then
Result := Result or EVENTFLAG_IS_LEFT
else
if CefIsKeyDown(VK_RMENU) then
Result := Result or EVENTFLAG_IS_RIGHT;
VK_LWIN :
Result := Result or EVENTFLAG_IS_LEFT;
VK_RWIN :
Result := Result or EVENTFLAG_IS_RIGHT;
end;
end;
procedure CefCheckAltGrPressed(aWparam : WPARAM; var aEvent : TCefKeyEvent);
const
EITHER_SHIFT_KEY_PRESSED = $01;
EITHER_CONTROL_KEY_PRESSED = $02;
EITHER_ALT_KEY_PRESSED = $04;
EITHER_HANKAKU_KEY_PRESSED = $08;
EITHER_RESERVED1_KEY_PRESSED = $10;
EITHER_RESERVED2_KEY_PRESSED = $20;
var
TempKBLayout : HKL;
TempTranslatedChar : SHORT;
TempShiftState : byte;
begin
if (aEvent.kind = KEYEVENT_CHAR) and CefIsKeyDown(VK_RMENU) then
begin
TempKBLayout := GetKeyboardLayout(0);
TempTranslatedChar := VkKeyScanEx(char(aWparam), TempKBLayout);
TempShiftState := byte(TempTranslatedChar shr 8);
if ((TempShiftState and EITHER_CONTROL_KEY_PRESSED) <> 0) and
((TempShiftState and EITHER_ALT_KEY_PRESSED) <> 0) then
begin
aEvent.modifiers := aEvent.modifiers and not(EVENTFLAG_CONTROL_DOWN or EVENTFLAG_ALT_DOWN);
aEvent.modifiers := aEvent.modifiers or EVENTFLAG_ALTGR_DOWN;
end;
end;
end;
procedure DropEffectToDragOperation(aEffect: Longint; var aAllowedOps : TCefDragOperations);
begin
aAllowedOps := DRAG_OPERATION_NONE;
if ((aEffect and DROPEFFECT_COPY) <> 0) then aAllowedOps := aAllowedOps or DRAG_OPERATION_COPY;
if ((aEffect and DROPEFFECT_LINK) <> 0) then aAllowedOps := aAllowedOps or DRAG_OPERATION_LINK;
if ((aEffect and DROPEFFECT_MOVE) <> 0) then aAllowedOps := aAllowedOps or DRAG_OPERATION_MOVE;
end;
procedure DragOperationToDropEffect(const aDragOperations : TCefDragOperations; var aEffect: Longint);
begin
aEffect := DROPEFFECT_NONE;
if ((aDragOperations and DRAG_OPERATION_COPY) <> 0) then aEffect := aEffect or DROPEFFECT_COPY;
if ((aDragOperations and DRAG_OPERATION_LINK) <> 0) then aEffect := aEffect or DROPEFFECT_LINK;
if ((aDragOperations and DRAG_OPERATION_MOVE) <> 0) then aEffect := aEffect or DROPEFFECT_MOVE;
end;
function GetWindowsMajorMinorVersion(var wMajorVersion, wMinorVersion : DWORD) : boolean;
type
TRtlGetVersionFunc = function(var lpVersionInformation : TOSVersionInfoEx): LongInt; stdcall;
var
TempHandle : THandle;
TempInfo : TOSVersionInfoEx;
TempRtlGetVersionFunc : TRtlGetVersionFunc;
begin
Result := False;
wMajorVersion := 0;
wMinorVersion := 0;
try
TempHandle := LoadLibrary(NTDLL);
if (TempHandle <> 0) then
try
{$IFDEF FPC}Pointer({$ENDIF}TempRtlGetVersionFunc{$IFDEF FPC}){$ENDIF} := GetProcAddress(TempHandle, 'RtlGetVersion');
if assigned(TempRtlGetVersionFunc) then
begin
ZeroMemory(@TempInfo, SizeOf(TOSVersionInfoEx));
if (TempRtlGetVersionFunc(TempInfo) = 0) then
begin
Result := True;
wMajorVersion := TempInfo.dwMajorVersion;
wMinorVersion := TempInfo.dwMinorVersion;
end;
end;
finally
FreeLibrary(TempHandle);
end;
except
on e : exception do
if CustomExceptionHandler('GetWindowsMajorMinorVersion', e) then raise;
end;
end;
// GetDpiForWindow is only available in Windows 10 (version 1607) or newer
function GetDPIForHandle(aHandle : HWND; var aDPI : UINT) : boolean;
type
TGetDpiForWindow = function(hwnd: HWND): UINT; stdcall;
var
TempHandle : THandle;
TempGetDpiForWindowFunc : TGetDpiForWindow;
begin
Result := False;
aDPI := 0;
if (aHandle = 0) then exit;
try
TempHandle := LoadLibrary(User32DLL);
if (TempHandle <> 0) then
try
{$IFDEF FPC}Pointer({$ENDIF}TempGetDpiForWindowFunc{$IFDEF FPC}){$ENDIF} := GetProcAddress(TempHandle, 'GetDpiForWindow');
if assigned(TempGetDpiForWindowFunc) then
begin
aDPI := TempGetDpiForWindowFunc(aHandle);
Result := (aDPI <> 0);
end;
finally
FreeLibrary(TempHandle);
end;
except
on e : exception do
if CustomExceptionHandler('GetDPIForHandle', e) then raise;
end;
end;
function RunningWindows10OrNewer : boolean;
var
TempMajorVer, TempMinorVer : DWORD;
begin
Result := GetWindowsMajorMinorVersion(TempMajorVer, TempMinorVer) and (TempMajorVer >= 10);
end;
function GetDefaultCEFUserAgent : string;
var
TempOS, TempChromiumVersion : string;
TempMajorVer, TempMinorVer : DWORD;
Temp64bit : BOOL;
begin
if GetWindowsMajorMinorVersion(TempMajorVer, TempMinorVer) and
(TempMajorVer >= 4) then
TempOS := 'Windows NT'
else
TempOS := 'Windows';
TempOS := TempOS + ' ' + inttostr(TempMajorVer) + '.' + inttostr(TempMinorVer);
if ProcessUnderWow64(GetCurrentProcess(), @Temp64bit) and Temp64bit then
TempOS := TempOS + '; WOW64';
if (GlobalCEFApp <> nil) then
TempChromiumVersion := GlobalCEFApp.ChromeVersion
else
TempChromiumVersion := inttostr(CEF_CHROMEELF_VERSION_MAJOR) + '.' +
inttostr(CEF_CHROMEELF_VERSION_MINOR) + '.' +
inttostr(CEF_CHROMEELF_VERSION_RELEASE) + '.' +
inttostr(CEF_CHROMEELF_VERSION_BUILD);
Result := 'Mozilla/5.0' + ' (' + TempOS + ') ' +
'AppleWebKit/537.36 (KHTML, like Gecko) ' +
'Chrome/' + TempChromiumVersion + ' Safari/537.36';
end;
{$IFDEF DELPHI14_UP}
function TouchPointToPoint(aHandle : HWND; const TouchPoint: TTouchInput): TPoint;
begin
Result := Point(TouchPoint.X div 100, TouchPoint.Y div 100);
PhysicalToLogicalPoint(aHandle, Result);
end;
function GetDigitizerStatus(var aDigitizerStatus : TDigitizerStatus; aDPI : cardinal) : boolean;
var
TempStatus : integer;
begin
{$IFDEF DELPHI26_UP}
if (aDPI > 0) then
TempStatus := GetSystemMetricsForDpi(SM_DIGITIZER, aDPI)
else
{$ENDIF}
TempStatus := GetSystemMetrics(SM_DIGITIZER);
aDigitizerStatus.IntegratedTouch := ((TempStatus and NID_INTEGRATED_TOUCH) <> 0);
aDigitizerStatus.ExternalTouch := ((TempStatus and NID_EXTERNAL_TOUCH) <> 0);
aDigitizerStatus.IntegratedPen := ((TempStatus and NID_INTEGRATED_PEN) <> 0);
aDigitizerStatus.ExternalPen := ((TempStatus and NID_EXTERNAL_PEN) <> 0);
aDigitizerStatus.MultiInput := ((TempStatus and NID_MULTI_INPUT) <> 0);
aDigitizerStatus.Ready := ((TempStatus and NID_READY) <> 0);
Result := (TempStatus <> 0);
end;
function HasTouchOrPen(aDPI : cardinal) : boolean;
var
TempStatus : TDigitizerStatus;
begin
Result := GetDigitizerStatus(TempStatus, aDPI);
end;
{$ENDIF}
{$ENDIF}
function DeviceToLogical(aValue : integer; const aDeviceScaleFactor : double) : integer;
begin
Result := floor(aValue / aDeviceScaleFactor);
end;
function DeviceToLogical(aValue : single; const aDeviceScaleFactor : double) : single;
begin
Result := aValue / aDeviceScaleFactor;
end;
procedure DeviceToLogical(var aEvent : TCEFMouseEvent; const aDeviceScaleFactor : double);
begin
aEvent.x := DeviceToLogical(aEvent.x, aDeviceScaleFactor);
aEvent.y := DeviceToLogical(aEvent.y, aDeviceScaleFactor);
end;
procedure DeviceToLogical(var aEvent : TCefTouchEvent; const aDeviceScaleFactor : double);
begin
aEvent.x := DeviceToLogical(aEvent.x, aDeviceScaleFactor);
aEvent.y := DeviceToLogical(aEvent.y, aDeviceScaleFactor);
end;
procedure DeviceToLogical(var aPoint : TPoint; const aDeviceScaleFactor : double);
begin
aPoint.x := DeviceToLogical(aPoint.x, aDeviceScaleFactor);
aPoint.y := DeviceToLogical(aPoint.y, aDeviceScaleFactor);
end;
function LogicalToDevice(aValue : integer; const aDeviceScaleFactor : double) : integer;
begin
Result := floor(aValue * aDeviceScaleFactor);
end;
procedure LogicalToDevice(var aRect : TCEFRect; const aDeviceScaleFactor : double);
begin
aRect.x := LogicalToDevice(aRect.x, aDeviceScaleFactor);
aRect.y := LogicalToDevice(aRect.y, aDeviceScaleFactor);
aRect.width := LogicalToDevice(aRect.width, aDeviceScaleFactor);
aRect.height := LogicalToDevice(aRect.height, aDeviceScaleFactor);
end;
function GetScreenDPI : integer;
{$IFDEF MSWINDOWS}
var
TempDC : HDC;
{$ELSE}
{$IFDEF FMX}
var
TempService : IFMXScreenService;
TempWidth, TempWidthMM : integer;
{$ENDIF}
{$ENDIF}
begin
{$IFDEF MSWINDOWS}
TempDC := GetDC(0);
Result := GetDeviceCaps(TempDC, LOGPIXELSX);
ReleaseDC(0, TempDC);
{$ENDIF}
{$IFDEF LINUX}
{$IFDEF FPC}
if (Application <> nil) and
(Application.MainForm <> nil) and
(Application.MainForm.Monitor <> nil) then
Result := Application.MainForm.Monitor.PixelsPerInch
else
if (screen <> nil) then
begin
if (WidgetSet <> nil) and (screen.PrimaryMonitor <> nil) then
Result := screen.PrimaryMonitor.PixelsPerInch
else
Result := screen.PixelsPerInch;
end
else
Result := USER_DEFAULT_SCREEN_DPI;
{$ELSE}
Result := -1;
if TPlatformServices.Current.SupportsPlatformService(IFMXScreenService, TempService) then
Result := round(TempService.GetScreenScale * USER_DEFAULT_SCREEN_DPI);
if (Result < 0) then
begin
Result := round(gdk_screen_get_resolution(gdk_screen_get_default));
if (Result < 0) then
begin
TempWidthMM := gdk_screen_width_mm;
TempWidth := gdk_screen_width;
if (TempWidthMM > 0) and (TempWidth > 0) then
Result := round(TempWidth / (TempWidthMM / 25.4))
else
Result := USER_DEFAULT_SCREEN_DPI;
end;
end;
{$ENDIF}
{$ENDIF}
{$IFDEF MACOSX}
{$IFDEF FPC}
Result := round(NSScreen.mainScreen.backingScaleFactor * USER_DEFAULT_SCREEN_DPI);
{$ELSE}
if TPlatformServices.Current.SupportsPlatformService(IFMXScreenService, TempService) then
Result := round(TempService.GetScreenScale * USER_DEFAULT_SCREEN_DPI)
else
Result := round(TNSScreen.Wrap(TNSScreen.OCClass.mainScreen).backingScaleFactor * USER_DEFAULT_SCREEN_DPI);
{$ENDIF}
{$ENDIF}
end;
function GetDeviceScaleFactor : single;
{$IFDEF MACOSX}{$IFDEF FMX}
var
TempService: IFMXScreenService;
{$ENDIF}{$ENDIF}
begin
{$IFDEF MACOSX}
{$IFDEF FPC}
Result := NSScreen.mainScreen.backingScaleFactor;
{$ELSE}
if TPlatformServices.Current.SupportsPlatformService(IFMXScreenService, TempService) then
Result := TempService.GetScreenScale
else
Result := TNSScreen.Wrap(TNSScreen.OCClass.mainScreen).backingScaleFactor;
{$ENDIF}
{$ELSE}
Result := GetScreenDPI / USER_DEFAULT_SCREEN_DPI;
{$ENDIF}
end;
function DeleteDirContents(const aDirectory : string; const aExcludeFiles : TStringList) : boolean;
var
TempRec : TSearchRec;
TempPath : string;
TempIdx : integer;
begin
Result := True;
try
if (length(aDirectory) > 0) and
DirectoryExists(aDirectory) and
(FindFirst(aDirectory + '\*', faAnyFile, TempRec) = 0) then
try
repeat
TempPath := aDirectory + PathDelim + TempRec.Name;
if ((TempRec.Attr and faDirectory) <> 0) then
begin
if (TempRec.Name <> '.') and (TempRec.Name <> '..') then
begin
if DeleteDirContents(TempPath, aExcludeFiles) then
Result := ((TempRec.Name = 'Network') or RemoveDir(TempPath)) and Result
else
Result := False;
end;
end
else
if (aExcludeFiles <> nil) then
begin
TempIdx := aExcludeFiles.IndexOf(TempRec.Name);
Result := ((TempIdx >= 0) or
((TempIdx < 0) and DeleteFile(TempPath))) and
Result;
end
else
Result := DeleteFile(TempPath) and Result;
until (FindNext(TempRec) <> 0) or not(Result);
finally
FindClose(TempRec);
end;
except
on e : exception do
if CustomExceptionHandler('DeleteDirContents', e) then raise;
end;
end;
function DeleteFileList(const aFileList : TStringList) : boolean;
var
i, TempCount : integer;
begin
Result := False;
try
if (aFileList <> nil) then
begin
i := 0;
TempCount := 0;
while (i < aFileList.Count) do
begin
if FileExists(aFileList[i]) and DeleteFile(aFileList[i]) then inc(TempCount);
inc(i);
end;
Result := (aFileList.Count = TempCount);
end;
except
on e : exception do
if CustomExceptionHandler('DeleteFileList', e) then raise;
end;
end;
function MoveFileList(const aFileList : TStringList; const aSrcDirectory, aDstDirectory : string) : boolean;
var
i, TempCount : integer;
TempSrcPath, TempDstPath : string;
begin
Result := False;
try
if (aFileList <> nil) and
(length(aSrcDirectory) > 0) and
(length(aDstDirectory) > 0) and
DirectoryExists(aSrcDirectory) and
(DirectoryExists(aDstDirectory) or CreateDir(aDstDirectory)) then
begin
i := 0;
TempCount := 0;
while (i < aFileList.Count) do
begin
TempSrcPath := IncludeTrailingPathDelimiter(aSrcDirectory) + aFileList[i];
TempDstPath := IncludeTrailingPathDelimiter(aDstDirectory) + aFileList[i];
if FileExists(TempSrcPath) and RenameFile(TempSrcPath, TempDstPath) then inc(TempCount);
inc(i);
end;
Result := (aFileList.Count = TempCount);
end;
except
on e : exception do
if CustomExceptionHandler('MoveFileList', e) then raise;
end;
end;
function CefGetDataURI(const aString, aMimeType : ustring) : ustring;
var
TempUTF : AnsiString;
begin
TempUTF := UTF8Encode(aString);
if (length(TempUTF) > 0) then
Result := CefGetDataURI(@TempUTF[1], length(TempUTF), aMimeType, 'utf-8')
else
Result := '';
end;
function CefGetDataURI(aData : pointer; aSize : integer; const aMimeType, aCharset : ustring) : ustring;
begin
Result := 'data:' + aMimeType;
if (length(aCharset) > 0) then Result := Result + ';charset=' + aCharset;
Result := Result + ';base64,' + CefURIEncode(CefBase64Encode(aData, aSize), false);
end;
function ValidCefWindowHandle(aHandle : TCefWindowHandle) : boolean;
begin
{$IFDEF MACOS}
Result := (aHandle <> nil);
{$ELSE}
Result := (aHandle <> 0);
{$ENDIF}
end;
procedure InitializeWindowHandle(var aHandle : TCefWindowHandle);
begin
{$IFDEF MACOS}
aHandle := nil;
{$ELSE}
aHandle := 0;
{$ENDIF}
end;
function GetCommandLineSwitchValue(const aKey : string; var aValue : ustring) : boolean;
var
i, TempLen : integer;
TempKey : string;
begin
Result := False;
TempKey := '--' + aKey + '=';
TempLen := length(TempKey);
i := paramCount;
while (i >= 1) do
if (CompareText(copy(paramstr(i), 1, TempLen), TempKey) = 0) then
begin
{$IFDEF FPC}
aValue := UTF8Decode(copy(paramstr(i), succ(TempLen), length(paramstr(i))));
{$ELSE}
aValue := copy(paramstr(i), succ(TempLen), length(paramstr(i)));
{$ENDIF}
Result := True;
break;
end
else
dec(i);
end;
function IsCEFSubprocess : boolean;
var
TempValue : ustring;
begin
Result := GetCommandLineSwitchValue('type', TempValue) and (length(TempValue) > 0);
end;
end.
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