mirror of
https://github.com/salvadordf/CEF4Delphi.git
synced 2024-11-15 15:55:56 +01:00
656 lines
17 KiB
ObjectPascal
656 lines
17 KiB
ObjectPascal
unit uCEFLinuxFunctions;
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{$IFDEF FPC}
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{$MODE OBJFPC}{$H+}
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{$ENDIF}
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{$I cef.inc}
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{$IFNDEF TARGET_64BITS}{$ALIGN ON}{$ENDIF}
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{$MINENUMSIZE 4}
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interface
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uses
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{$IFDEF LINUX}
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{$IFDEF FPC}
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ctypes, keysym, xf86keysym, x, xlib, LCLVersion,
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{$IFDEF LCLGTK2}gtk2, glib2, gdk2, gtk2proc, gtk2int, Gtk2Def, gdk2x, Gtk2Extra,{$ENDIF}
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{$IFDEF LCLGTK3}LazGdk3, LazGtk3, LazGObject2, LazGLib2, gtk3objects, gtk3procs,{$ENDIF}
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{$ENDIF}
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{$ENDIF}
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uCEFLinuxTypes, uCEFTypes;
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{$IFDEF LINUX}
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procedure GdkEventKeyToCEFKeyEvent(GdkEvent: PGdkEventKey; var aCEFKeyEvent : TCEFKeyEvent);
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function KeyboardCodeFromXKeysym(keysym : uint32) : integer;
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{$IF DEFINED(LINUXFMX) or DEFINED(LCLGTK2)}
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function GetCefStateModifiers(state : uint32) : integer;
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{$ENDIF}
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{$IF DEFINED(LCLGTK3)}
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function GetCefStateModifiers(state : TGdkModifierType) : integer;
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{$ENDIF}
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function GdkEventToWindowsKeyCode(Event: PGdkEventKey) : integer;
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function GetWindowsKeyCodeWithoutLocation(key_code : integer) : integer;
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function GetControlCharacter(windows_key_code : integer; shift : boolean) : integer;
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{$IFDEF FMX}
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type
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TXErrorHandler = function (para1:PDisplay; para2:PXErrorEvent):longint; cdecl;
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TXIOErrorHandler = function (para1:PDisplay):longint; cdecl;
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function XSetErrorHandler(para1:TXErrorHandler):TXErrorHandler; cdecl; external 'libX11.so';
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function XSetIOErrorHandler(para1:TXIOErrorHandler):TXIOErrorHandler; cdecl; external 'libX11.so';
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function gdk_keyval_to_unicode(keyval: guint): guint32; cdecl; external 'libgdk-3.so';
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function g_signal_connect_data(instance: gpointer; detailed_signal: Pgchar; c_handler: TGCallback; data: gpointer; destroy_data: TGClosureNotify; connect_flags: TGConnectFlags): gulong; cdecl; external 'libgobject-2.0.so';
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function g_signal_connect(instance: gpointer; detailed_signal: Pgchar; c_handler: TGCallback; data: gpointer): gulong; overload;
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function g_signal_connect(instance: gpointer; const detailed_signal: AnsiString; c_handler: TGCallback; data: gpointer): gulong; overload;
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function gdk_screen_width:gint; cdecl; external 'libgdk-3.so';
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function gdk_screen_width_mm:gint; cdecl; external 'libgdk-3.so';
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function gdk_screen_get_default:PGdkScreen; cdecl; external 'libgdk-3.so';
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function gdk_screen_get_resolution(screen:PGdkScreen):gdouble; cdecl; external 'libgdk-3.so';
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{$ENDIF}
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{$IFDEF FPC}
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{$IFDEF LCLGTK3}
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function gdk_x11_window_get_xid(window: PGdkWindow): TXID; cdecl; external 'libgdk-3.so.0';
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function gdk_x11_get_default_xdisplay: PDisplay; cdecl; external 'libgdk-3.so.0';
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procedure gdk_set_allowed_backends(const backends: PGchar); cdecl; external 'libgdk-3.so.0';
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{$ENDIF}
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procedure ShowX11Message(const aMessage : string);
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{$ENDIF}{$ENDIF}
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implementation
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uses
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{$IFDEF DELPHI16_UP}
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System.SysUtils,
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{$ELSE}
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SysUtils,
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{$ENDIF}
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uCEFLinuxConstants, uCEFConstants;
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{$IFDEF LINUX}
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function KeyboardCodeFromXKeysym(keysym : uint32) : integer;
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begin
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case keysym of
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XK_BackSpace:
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Result := VKEY_BACK;
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XK_Delete,
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XK_KP_Delete:
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Result := VKEY_DELETE;
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XK_Tab,
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XK_KP_Tab,
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XK_ISO_Left_Tab,
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XK_3270_BackTab:
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Result := VKEY_TAB;
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XK_Linefeed,
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XK_Return,
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XK_KP_Enter,
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XK_ISO_Enter:
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Result := VKEY_Return;
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XK_Clear,
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XK_KP_Begin:
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Result := VKEY_CLEAR;
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XK_KP_Space,
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XK_space:
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Result := VKEY_SPACE;
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XK_Home,
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XK_KP_Home:
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Result := VKEY_HOME;
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XK_End,
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XK_KP_End:
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Result := VKEY_END;
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XK_Page_Up,
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XK_KP_Page_Up:
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Result := VKEY_PRIOR;
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XK_Page_Down,
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XK_KP_Page_Down:
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Result := VKEY_NEXT;
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XK_Left,
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XK_KP_Left:
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Result := VKEY_LEFT;
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XK_Right,
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XK_KP_Right:
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Result := VKEY_RIGHT;
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XK_Down,
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XK_KP_Down:
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Result := VKEY_DOWN;
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XK_Up,
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XK_KP_Up:
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Result := VKEY_UP;
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XK_Escape:
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Result := VKEY_ESCAPE;
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XK_Kana_Lock,
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XK_Kana_Shift:
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Result := VKEY_KANA;
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XK_Hangul:
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Result := VKEY_HANGUL;
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XK_Hangul_Hanja:
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Result := VKEY_HANJA;
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XK_Kanji:
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Result := VKEY_KANJI;
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XK_Henkan:
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Result := VKEY_CONVERT;
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XK_Muhenkan:
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Result := VKEY_NONCONVERT;
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XK_Zenkaku_Hankaku:
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Result := VKEY_DBE_DBCSCHAR;
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XKc_A,
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XK_a:
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Result := VKEY_A;
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XKc_B,
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XK_b:
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Result := VKEY_B;
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XKc_C,
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XK_c:
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Result := VKEY_C;
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XKc_D,
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XK_d:
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Result := VKEY_D;
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XKc_E,
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XK_e:
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Result := VKEY_E;
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XKc_F,
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XK_f:
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Result := VKEY_F;
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XKc_G,
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XK_g:
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Result := VKEY_G;
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XKc_H,
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XK_h:
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Result := VKEY_H;
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XKc_I,
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XK_i:
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Result := VKEY_I;
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XKc_J,
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XK_j:
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Result := VKEY_J;
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XKc_K,
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XK_k:
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Result := VKEY_K;
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XKc_L,
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XK_l:
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Result := VKEY_L;
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XKc_M,
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XK_m:
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Result := VKEY_M;
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XKc_N,
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XK_n:
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Result := VKEY_N;
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XKc_O,
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XK_o:
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Result := VKEY_O;
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XKc_P,
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XK_p:
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Result := VKEY_P;
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XKc_Q,
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XK_q:
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Result := VKEY_Q;
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XKc_R,
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XK_r:
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Result := VKEY_R;
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XKc_S,
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XK_s:
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Result := VKEY_S;
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XKc_T,
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XK_t:
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Result := VKEY_T;
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XKc_U,
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XK_u:
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Result := VKEY_U;
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XKc_V,
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XK_v:
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Result := VKEY_V;
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XKc_W,
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XK_w:
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Result := VKEY_W;
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XKc_X,
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XK_x:
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Result := VKEY_X;
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XKc_Y,
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XK_y:
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Result := VKEY_Y;
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XKc_Z,
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XK_z:
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Result := VKEY_Z;
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XK_0,
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XK_1,
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XK_2,
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XK_3,
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XK_4,
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XK_5,
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XK_6,
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XK_7,
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XK_8,
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XK_9:
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Result := VKEY_0 + (keysym - XK_0);
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XK_parenright:
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Result := VKEY_0;
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XK_exclam:
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Result := VKEY_1;
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XK_at:
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Result := VKEY_2;
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XK_numbersign:
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Result := VKEY_3;
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XK_dollar:
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Result := VKEY_4;
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XK_percent:
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Result := VKEY_5;
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XK_asciicircum:
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Result := VKEY_6;
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XK_ampersand:
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Result := VKEY_7;
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XK_asterisk:
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Result := VKEY_8;
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XK_parenleft:
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Result := VKEY_9;
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XK_KP_0,
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XK_KP_1,
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XK_KP_2,
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XK_KP_3,
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XK_KP_4,
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XK_KP_5,
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XK_KP_6,
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XK_KP_7,
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XK_KP_8,
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XK_KP_9:
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Result := VKEY_NUMPAD0 + (keysym - XK_KP_0);
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XK_multiply,
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XK_KP_Multiply:
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Result := VKEY_MULTIPLY;
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XK_KP_Add:
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Result := VKEY_ADD;
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XK_KP_Separator:
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Result := VKEY_SEPARATOR;
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XK_KP_Subtract:
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Result := VKEY_SUBTRACT;
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XK_KP_Decimal:
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Result := VKEY_DECIMAL;
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XK_KP_Divide:
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Result := VKEY_DIVIDE;
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XK_KP_Equal,
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XK_equal,
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XK_plus:
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Result := VKEY_OEM_PLUS;
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XK_comma,
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XK_less:
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Result := VKEY_OEM_COMMA;
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XK_minus,
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XK_underscore:
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Result := VKEY_OEM_MINUS;
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XK_greater,
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XK_period:
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Result := VKEY_OEM_PERIOD;
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XK_colon,
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XK_semicolon:
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Result := VKEY_OEM_1;
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XK_question,
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XK_slash:
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Result := VKEY_OEM_2;
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XK_asciitilde,
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XK_quoteleft:
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Result := VKEY_OEM_3;
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XK_bracketleft,
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XK_braceleft:
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Result := VKEY_OEM_4;
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XK_backslash,
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XK_bar:
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Result := VKEY_OEM_5;
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XK_bracketright,
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XK_braceright:
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Result := VKEY_OEM_6;
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XK_quoteright,
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XK_quotedbl:
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Result := VKEY_OEM_7;
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XK_ISO_Level5_Shift:
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Result := VKEY_OEM_8;
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XK_Shift_L,
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XK_Shift_R:
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Result := VKEY_SHIFT;
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XK_Control_L,
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XK_Control_R:
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Result := VKEY_CONTROL;
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XK_Meta_L,
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XK_Meta_R,
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XK_Alt_L,
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XK_Alt_R:
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Result := VKEY_MENU;
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XK_ISO_Level3_Shift:
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Result := VKEY_ALTGR;
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XK_Multi_key:
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Result := VKEY_COMPOSE;
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XK_Pause:
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Result := VKEY_PAUSE;
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XK_Caps_Lock:
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Result := VKEY_CAPITAL;
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XK_Num_Lock:
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Result := VKEY_NUMLOCK;
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XK_Scroll_Lock:
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Result := VKEY_SCROLL;
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XK_Select:
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Result := VKEY_SELECT;
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XK_Print:
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Result := VKEY_PRINT;
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XK_Execute:
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Result := VKEY_EXECUTE;
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XK_Insert,
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XK_KP_Insert:
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Result := VKEY_INSERT;
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XK_Help:
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Result := VKEY_HELP;
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XK_Super_L:
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Result := VKEY_LWIN;
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XK_Super_R:
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Result := VKEY_RWIN;
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XK_Menu:
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Result := VKEY_APPS;
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XK_F1,
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XK_F2,
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XK_F3,
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XK_F4,
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XK_F5,
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XK_F6,
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XK_F7,
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XK_F8,
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XK_F9,
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XK_F10,
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XK_F11,
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XK_F12,
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XK_F13,
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XK_F14,
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XK_F15,
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XK_F16,
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XK_F17,
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XK_F18,
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XK_F19,
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XK_F20,
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XK_F21,
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XK_F22,
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XK_F23,
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XK_F24:
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Result := VKEY_F1 + (keysym - XK_F1);
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XK_KP_F1,
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XK_KP_F2,
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XK_KP_F3,
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XK_KP_F4:
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Result := VKEY_F1 + (keysym - XK_KP_F1);
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XK_guillemotleft,
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XK_guillemotright,
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XK_degree,
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XK_ugrave,
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XKc_Ugrave,
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XK_brokenbar:
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Result := VKEY_OEM_102;
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XF86XK_Tools:
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Result := VKEY_F13;
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XF86XK_Launch5:
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Result := VKEY_F14;
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XF86XK_Launch6:
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Result := VKEY_F15;
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XF86XK_Launch7:
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Result := VKEY_F16;
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XF86XK_Launch8:
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Result := VKEY_F17;
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XF86XK_Launch9:
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Result := VKEY_F18;
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XF86XK_Refresh,
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XF86XK_History,
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XF86XK_OpenURL,
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XF86XK_AddFavorite,
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XF86XK_Go,
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XF86XK_ZoomIn,
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XF86XK_ZoomOut:
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Result := VKEY_UNKNOWN;
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XF86XK_Back:
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Result := VKEY_BROWSER_BACK;
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XF86XK_Forward:
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Result := VKEY_BROWSER_FORWARD;
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XF86XK_Reload:
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Result := VKEY_BROWSER_REFRESH;
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XF86XK_Stop:
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Result := VKEY_BROWSER_STOP;
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XF86XK_Search:
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Result := VKEY_BROWSER_SEARCH;
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XF86XK_Favorites:
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Result := VKEY_BROWSER_FAVORITES;
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XF86XK_HomePage:
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Result := VKEY_BROWSER_HOME;
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XF86XK_AudioMute:
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Result := VKEY_VOLUME_MUTE;
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XF86XK_AudioLowerVolume:
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Result := VKEY_VOLUME_DOWN;
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XF86XK_AudioRaiseVolume:
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Result := VKEY_VOLUME_UP;
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XF86XK_AudioNext:
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Result := VKEY_MEDIA_NEXT_TRACK;
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XF86XK_AudioPrev:
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Result := VKEY_MEDIA_PREV_TRACK;
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XF86XK_AudioStop:
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Result := VKEY_MEDIA_STOP;
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XF86XK_AudioPlay:
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Result := VKEY_MEDIA_PLAY_PAUSE;
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XF86XK_Mail:
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Result := VKEY_MEDIA_LAUNCH_MAIL;
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XF86XK_LaunchA:
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Result := VKEY_MEDIA_LAUNCH_APP1;
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XF86XK_LaunchB,
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XF86XK_Calculator:
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Result := VKEY_MEDIA_LAUNCH_APP2;
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XF86XK_WLAN:
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Result := VKEY_WLAN;
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XF86XK_PowerOff:
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Result := VKEY_POWER;
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XF86XK_MonBrightnessDown:
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Result := VKEY_BRIGHTNESS_DOWN;
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XF86XK_MonBrightnessUp:
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Result := VKEY_BRIGHTNESS_UP;
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XF86XK_KbdBrightnessDown:
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Result := VKEY_KBD_BRIGHTNESS_DOWN;
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XF86XK_KbdBrightnessUp:
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Result := VKEY_KBD_BRIGHTNESS_UP;
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else Result := VKEY_UNKNOWN;
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end;
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end;
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{$IF DEFINED(LINUXFMX) or DEFINED(LCLGTK2)}
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function GetCefStateModifiers(state : uint32) : integer;
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begin
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Result := EVENTFLAG_NONE;
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if ((state and GDK_SHIFT_MASK) <> 0) then
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Result := Result or EVENTFLAG_SHIFT_DOWN;
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if ((state and GDK_LOCK_MASK) <> 0) then
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Result := Result or EVENTFLAG_CAPS_LOCK_ON;
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if ((state and GDK_CONTROL_MASK) <> 0) then
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Result := Result or EVENTFLAG_CONTROL_DOWN;
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if ((state and GDK_MOD1_MASK) <> 0) then
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Result := Result or EVENTFLAG_ALT_DOWN;
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if ((state and GDK_BUTTON1_MASK) <> 0) then
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Result := Result or EVENTFLAG_LEFT_MOUSE_BUTTON;
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if ((state and GDK_BUTTON2_MASK) <> 0) then
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Result := Result or EVENTFLAG_MIDDLE_MOUSE_BUTTON;
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if ((state and GDK_BUTTON3_MASK) <> 0) then
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Result := Result or EVENTFLAG_RIGHT_MOUSE_BUTTON;
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end;
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{$ENDIF}
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{$IF DEFINED(LCLGTK3)}
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function GetCefStateModifiers(state : TGdkModifierType) : integer;
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begin
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Result := EVENTFLAG_NONE;
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if (GDK_SHIFT_MASK in state) then
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Result := Result or EVENTFLAG_SHIFT_DOWN;
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if (GDK_LOCK_MASK in state) then
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Result := Result or EVENTFLAG_CAPS_LOCK_ON;
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if (GDK_CONTROL_MASK in state) then
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Result := Result or EVENTFLAG_CONTROL_DOWN;
|
|
|
|
if (GDK_MOD1_MASK in state) then
|
|
Result := Result or EVENTFLAG_ALT_DOWN;
|
|
|
|
if (GDK_BUTTON1_MASK in state) then
|
|
Result := Result or EVENTFLAG_LEFT_MOUSE_BUTTON;
|
|
|
|
if (GDK_BUTTON2_MASK in state) then
|
|
Result := Result or EVENTFLAG_MIDDLE_MOUSE_BUTTON;
|
|
|
|
if (GDK_BUTTON3_MASK in state) then
|
|
Result := Result or EVENTFLAG_RIGHT_MOUSE_BUTTON;
|
|
end;
|
|
{$ENDIF}
|
|
|
|
function GdkEventToWindowsKeyCode(event: PGdkEventKey) : integer;
|
|
var
|
|
windows_key_code, keyval : integer;
|
|
begin
|
|
windows_key_code := KeyboardCodeFromXKeysym(event^.keyval);
|
|
if (windows_key_code <> 0) then
|
|
begin
|
|
Result := windows_key_code;
|
|
exit;
|
|
end;
|
|
|
|
if (event^.hardware_keycode < length(kHardwareCodeToGDKKeyval)) then
|
|
begin
|
|
keyval := kHardwareCodeToGDKKeyval[event^.hardware_keycode];
|
|
if (keyval <> 0) then
|
|
begin
|
|
Result := KeyboardCodeFromXKeysym(keyval);
|
|
exit;
|
|
end;
|
|
end;
|
|
|
|
Result := KeyboardCodeFromXKeysym(event^.keyval);
|
|
end;
|
|
|
|
function GetWindowsKeyCodeWithoutLocation(key_code : integer) : integer;
|
|
begin
|
|
case key_code of
|
|
VKEY_LCONTROL, VKEY_RCONTROL : Result := VKEY_CONTROL;
|
|
VKEY_LSHIFT, VKEY_RSHIFT : Result := VKEY_SHIFT;
|
|
VKEY_LMENU, VKEY_RMENU : Result := VKEY_MENU;
|
|
else Result := key_code;
|
|
end;
|
|
end;
|
|
|
|
function GetControlCharacter(windows_key_code : integer; shift : boolean) : integer;
|
|
begin
|
|
if (windows_key_code >= VKEY_A) and (windows_key_code <= VKEY_Z) then
|
|
Result := windows_key_code - VKEY_A + 1
|
|
else
|
|
if shift then
|
|
case windows_key_code of
|
|
VKEY_2 : Result := 0;
|
|
VKEY_6 : Result := $1E;
|
|
VKEY_OEM_MINUS : Result := $1F;
|
|
else Result := 0;
|
|
end
|
|
else
|
|
case windows_key_code of
|
|
VKEY_OEM_4 : Result := $1B;
|
|
VKEY_OEM_5 : Result := $1C;
|
|
VKEY_OEM_6 : Result := $1D;
|
|
VKEY_RETURN : Result := $0A;
|
|
else Result := 0;
|
|
end;
|
|
end;
|
|
|
|
procedure GdkEventKeyToCEFKeyEvent(GdkEvent: PGdkEventKey; var aCEFKeyEvent : TCEFKeyEvent);
|
|
var
|
|
windows_key_code : integer;
|
|
begin
|
|
windows_key_code := GdkEventToWindowsKeyCode(GdkEvent);
|
|
aCEFKeyEvent.windows_key_code := GetWindowsKeyCodeWithoutLocation(windows_key_code);
|
|
aCEFKeyEvent.native_key_code := GdkEvent^.hardware_keycode;
|
|
aCEFKeyEvent.modifiers := GetCefStateModifiers(GdkEvent^.state);
|
|
aCEFKeyEvent.focus_on_editable_field := 0;
|
|
|
|
if (GdkEvent^.keyval >= GDK_KP_Space) and (GdkEvent^.keyval <= GDK_KP_9) then
|
|
aCEFKeyEvent.modifiers := aCEFKeyEvent.modifiers or EVENTFLAG_IS_KEY_PAD;
|
|
|
|
aCEFKeyEvent.is_system_key := ord((aCEFKeyEvent.modifiers and EVENTFLAG_ALT_DOWN) <> 0);
|
|
|
|
if (windows_key_code = VKEY_RETURN) then
|
|
aCEFKeyEvent.unmodified_character := #13
|
|
else
|
|
aCEFKeyEvent.unmodified_character := WideChar(gdk_keyval_to_unicode(GdkEvent^.keyval));
|
|
|
|
if ((aCEFKeyEvent.modifiers and EVENTFLAG_CONTROL_DOWN) <> 0) then
|
|
aCEFKeyEvent.character := WideChar(GetControlCharacter(windows_key_code, ((aCEFKeyEvent.modifiers and EVENTFLAG_SHIFT_DOWN) <> 0)))
|
|
else
|
|
aCEFKeyEvent.character := aCEFKeyEvent.unmodified_character;
|
|
end;
|
|
|
|
{$IFDEF FMX}
|
|
function g_signal_connect(instance: gpointer; detailed_signal: Pgchar; c_handler: TGCallback; data: gpointer): gulong;
|
|
begin
|
|
Result := g_signal_connect_data(instance, detailed_signal, c_handler, data, nil, TGConnectFlags(0));
|
|
end;
|
|
|
|
function g_signal_connect(instance: gpointer; const detailed_signal: AnsiString; c_handler: TGCallback; data: gpointer): gulong;
|
|
begin
|
|
Result := g_signal_connect(instance, @detailed_signal[1], c_handler, data);
|
|
end;
|
|
{$ENDIF}
|
|
|
|
{$IFDEF FPC}
|
|
// This function is almost an identical copy of "ModalShowX11Window" available
|
|
// at https://wiki.lazarus.freepascal.org/X11
|
|
procedure ShowX11Message(const aMessage : string);
|
|
var
|
|
TempDisplay : PDisplay;
|
|
TempWindow : TWindow;
|
|
TempEvent : TXEvent;
|
|
TempMessage : PChar;
|
|
TempScreen : cint;
|
|
begin
|
|
TempMessage := PChar(trim(copy(aMessage, 1, pred(pos(#13, aMessage)))));
|
|
TempDisplay := XOpenDisplay(nil);
|
|
|
|
if (TempDisplay = nil) then
|
|
begin
|
|
WriteLn(aMessage);
|
|
exit;
|
|
end;
|
|
|
|
TempScreen := DefaultScreen(TempDisplay);
|
|
TempWindow := XCreateSimpleWindow(TempDisplay,
|
|
RootWindow(TempDisplay, TempScreen),
|
|
10, 10, 200, 100, 1,
|
|
BlackPixel(TempDisplay, TempScreen),
|
|
WhitePixel(TempDisplay, TempScreen));
|
|
|
|
XSelectInput(TempDisplay, TempWindow, ExposureMask or KeyPressMask);
|
|
|
|
XMapWindow(TempDisplay, TempWindow);
|
|
|
|
while (True) do
|
|
begin
|
|
XNextEvent(TempDisplay, @TempEvent);
|
|
|
|
if (TempEvent._type = Expose) then
|
|
XDrawString(TempDisplay,
|
|
TempWindow,
|
|
DefaultGC(TempDisplay, TempScreen),
|
|
40, 50,
|
|
TempMessage,
|
|
strlen(TempMessage));
|
|
|
|
if (TempEvent._type = KeyPress) then Break;
|
|
end;
|
|
|
|
XCloseDisplay(TempDisplay);
|
|
end;
|
|
{$ENDIF}{$ENDIF}
|
|
|
|
end.
|