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Move input-related files into core/input

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This commit moves all the input-related files from `core/`
to `core/input/`, and renames a couple as relevant
(input.js --> input/devices.js, keyboard.js --> input/util.js).
This commit is contained in:
Solly Ross
2016-09-14 13:45:08 -04:00
parent b4ef49ea36
commit bd5340c7ee
17 changed files with 36 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files
core/input/devices.js
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/*
* noVNC: HTML5 VNC client
* Copyright (C) 2012 Joel Martin
* Copyright (C) 2013 Samuel Mannehed for Cendio AB
* Licensed under MPL 2.0 or any later version (see LICENSE.txt)
*/
/*jslint browser: true, white: false */
/*global window, Util */
/* [module]
* import Util from "../util";
* import KeyboardUtil from "./util";
*/
/* [module] export */ var Keyboard;
(function () {
"use strict";
//
// Keyboard event handler
//
Keyboard = function (defaults) {
this._keyDownList = []; // List of depressed keys
// (even if they are happy)
Util.set_defaults(this, defaults, {
'target': document,
'focused': true
});
// create the keyboard handler
this._handler = new KeyboardUtil.KeyEventDecoder(KeyboardUtil.ModifierSync(),
KeyboardUtil.VerifyCharModifier( /* jshint newcap: false */
KeyboardUtil.TrackKeyState(
KeyboardUtil.EscapeModifiers(this._handleRfbEvent.bind(this))
)
)
); /* jshint newcap: true */
// keep these here so we can refer to them later
this._eventHandlers = {
'keyup': this._handleKeyUp.bind(this),
'keydown': this._handleKeyDown.bind(this),
'keypress': this._handleKeyPress.bind(this),
'blur': this._allKeysUp.bind(this)
};
};
Keyboard.prototype = {
// private methods
_handleRfbEvent: function (e) {
if (this._onKeyPress) {
Util.Debug("onKeyPress " + (e.type == 'keydown' ? "down" : "up") +
", keysym: " + e.keysym.keysym + "(" + e.keysym.keyname + ")");
this._onKeyPress(e);
}
},
setQEMUVNCKeyboardHandler: function () {
this._handler = new KeyboardUtil.QEMUKeyEventDecoder(KeyboardUtil.ModifierSync(),
KeyboardUtil.TrackQEMUKeyState(
this._handleRfbEvent.bind(this)
)
);
},
_handleKeyDown: function (e) {
if (!this._focused) { return true; }
if (this._handler.keydown(e)) {
// Suppress bubbling/default actions
Util.stopEvent(e);
return false;
} else {
// Allow the event to bubble and become a keyPress event which
// will have the character code translated
return true;
}
},
_handleKeyPress: function (e) {
if (!this._focused) { return true; }
if (this._handler.keypress(e)) {
// Suppress bubbling/default actions
Util.stopEvent(e);
return false;
} else {
// Allow the event to bubble and become a keyPress event which
// will have the character code translated
return true;
}
},
_handleKeyUp: function (e) {
if (!this._focused) { return true; }
if (this._handler.keyup(e)) {
// Suppress bubbling/default actions
Util.stopEvent(e);
return false;
} else {
// Allow the event to bubble and become a keyPress event which
// will have the character code translated
return true;
}
},
_allKeysUp: function () {
Util.Debug(">> Keyboard.allKeysUp");
this._handler.releaseAll();
Util.Debug("<< Keyboard.allKeysUp");
},
// Public methods
grab: function () {
//Util.Debug(">> Keyboard.grab");
var c = this._target;
c.addEventListener('keydown', this._eventHandlers.keydown);
c.addEventListener('keyup', this._eventHandlers.keyup);
c.addEventListener('keypress', this._eventHandlers.keypress);
// Release (key up) if window loses focus
window.addEventListener('blur', this._eventHandlers.blur);
//Util.Debug("<< Keyboard.grab");
},
ungrab: function () {
//Util.Debug(">> Keyboard.ungrab");
var c = this._target;
c.removeEventListener('keydown', this._eventHandlers.keydown);
c.removeEventListener('keyup', this._eventHandlers.keyup);
c.removeEventListener('keypress', this._eventHandlers.keypress);
window.removeEventListener('blur', this._eventHandlers.blur);
// Release (key up) all keys that are in a down state
this._allKeysUp();
//Util.Debug(">> Keyboard.ungrab");
},
sync: function (e) {
this._handler.syncModifiers(e);
}
};
Util.make_properties(Keyboard, [
['target', 'wo', 'dom'], // DOM element that captures keyboard input
['focused', 'rw', 'bool'], // Capture and send key events
['onKeyPress', 'rw', 'func'] // Handler for key press/release
]);
})();
/* [module] export */ var Mouse;
(function () {
Mouse = function (defaults) {
this._mouseCaptured = false;
this._doubleClickTimer = null;
this._lastTouchPos = null;
// Configuration attributes
Util.set_defaults(this, defaults, {
'target': document,
'focused': true,
'scale': 1.0,
'touchButton': 1
});
this._eventHandlers = {
'mousedown': this._handleMouseDown.bind(this),
'mouseup': this._handleMouseUp.bind(this),
'mousemove': this._handleMouseMove.bind(this),
'mousewheel': this._handleMouseWheel.bind(this),
'mousedisable': this._handleMouseDisable.bind(this)
};
};
Mouse.prototype = {
// private methods
_captureMouse: function () {
// capturing the mouse ensures we get the mouseup event
if (this._target.setCapture) {
this._target.setCapture();
}
// some browsers give us mouseup events regardless,
// so if we never captured the mouse, we can disregard the event
this._mouseCaptured = true;
},
_releaseMouse: function () {
if (this._target.releaseCapture) {
this._target.releaseCapture();
}
this._mouseCaptured = false;
},
_resetDoubleClickTimer: function () {
this._doubleClickTimer = null;
},
_handleMouseButton: function (e, down) {
if (!this._focused) { return true; }
if (this._notify) {
this._notify(e);
}
var evt = (e ? e : window.event);
var pos = Util.getEventPosition(e, this._target, this._scale);
var bmask;
if (e.touches || e.changedTouches) {
// Touch device
// When two touches occur within 500 ms of each other and are
// close enough together a double click is triggered.
if (down == 1) {
if (this._doubleClickTimer === null) {
this._lastTouchPos = pos;
} else {
clearTimeout(this._doubleClickTimer);
// When the distance between the two touches is small enough
// force the position of the latter touch to the position of
// the first.
var xs = this._lastTouchPos.x - pos.x;
var ys = this._lastTouchPos.y - pos.y;
var d = Math.sqrt((xs * xs) + (ys * ys));
// The goal is to trigger on a certain physical width, the
// devicePixelRatio brings us a bit closer but is not optimal.
var threshold = 20 * (window.devicePixelRatio || 1);
if (d < threshold) {
pos = this._lastTouchPos;
}
}
this._doubleClickTimer = setTimeout(this._resetDoubleClickTimer.bind(this), 500);
}
bmask = this._touchButton;
// If bmask is set
} else if (evt.which) {
/* everything except IE */
bmask = 1 << evt.button;
} else {
/* IE including 9 */
bmask = (evt.button & 0x1) + // Left
(evt.button & 0x2) * 2 + // Right
(evt.button & 0x4) / 2; // Middle
}
if (this._onMouseButton) {
Util.Debug("onMouseButton " + (down ? "down" : "up") +
", x: " + pos.x + ", y: " + pos.y + ", bmask: " + bmask);
this._onMouseButton(pos.x, pos.y, down, bmask);
}
Util.stopEvent(e);
return false;
},
_handleMouseDown: function (e) {
this._captureMouse();
this._handleMouseButton(e, 1);
},
_handleMouseUp: function (e) {
if (!this._mouseCaptured) { return; }
this._handleMouseButton(e, 0);
this._releaseMouse();
},
_handleMouseWheel: function (e) {
if (!this._focused) { return true; }
if (this._notify) {
this._notify(e);
}
var evt = (e ? e : window.event);
var pos = Util.getEventPosition(e, this._target, this._scale);
var wheelData = evt.detail ? evt.detail * -1 : evt.wheelDelta / 40;
var bmask;
if (wheelData > 0) {
bmask = 1 << 3;
} else {
bmask = 1 << 4;
}
if (this._onMouseButton) {
this._onMouseButton(pos.x, pos.y, 1, bmask);
this._onMouseButton(pos.x, pos.y, 0, bmask);
}
Util.stopEvent(e);
return false;
},
_handleMouseMove: function (e) {
if (! this._focused) { return true; }
if (this._notify) {
this._notify(e);
}
var evt = (e ? e : window.event);
var pos = Util.getEventPosition(e, this._target, this._scale);
if (this._onMouseMove) {
this._onMouseMove(pos.x, pos.y);
}
Util.stopEvent(e);
return false;
},
_handleMouseDisable: function (e) {
if (!this._focused) { return true; }
var evt = (e ? e : window.event);
var pos = Util.getEventPosition(e, this._target, this._scale);
/* Stop propagation if inside canvas area */
if ((pos.realx >= 0) && (pos.realy >= 0) &&
(pos.realx < this._target.offsetWidth) &&
(pos.realy < this._target.offsetHeight)) {
//Util.Debug("mouse event disabled");
Util.stopEvent(e);
return false;
}
return true;
},
// Public methods
grab: function () {
var c = this._target;
if ('ontouchstart' in document.documentElement) {
c.addEventListener('touchstart', this._eventHandlers.mousedown);
window.addEventListener('touchend', this._eventHandlers.mouseup);
c.addEventListener('touchend', this._eventHandlers.mouseup);
c.addEventListener('touchmove', this._eventHandlers.mousemove);
} else {
c.addEventListener('mousedown', this._eventHandlers.mousedown);
window.addEventListener('mouseup', this._eventHandlers.mouseup);
c.addEventListener('mouseup', this._eventHandlers.mouseup);
c.addEventListener('mousemove', this._eventHandlers.mousemove);
c.addEventListener((Util.Engine.gecko) ? 'DOMMouseScroll' : 'mousewheel',
this._eventHandlers.mousewheel);
}
/* Work around right and middle click browser behaviors */
document.addEventListener('click', this._eventHandlers.mousedisable);
document.body.addEventListener('contextmenu', this._eventHandlers.mousedisable);
},
ungrab: function () {
var c = this._target;
if ('ontouchstart' in document.documentElement) {
c.removeEventListener('touchstart', this._eventHandlers.mousedown);
window.removeEventListener('touchend', this._eventHandlers.mouseup);
c.removeEventListener('touchend', this._eventHandlers.mouseup);
c.removeEventListener('touchmove', this._eventHandlers.mousemove);
} else {
c.removeEventListener('mousedown', this._eventHandlers.mousedown);
window.removeEventListener('mouseup', this._eventHandlers.mouseup);
c.removeEventListener('mouseup', this._eventHandlers.mouseup);
c.removeEventListener('mousemove', this._eventHandlers.mousemove);
c.removeEventListener((Util.Engine.gecko) ? 'DOMMouseScroll' : 'mousewheel',
this._eventHandlers.mousewheel);
}
/* Work around right and middle click browser behaviors */
document.removeEventListener('click', this._eventHandlers.mousedisable);
document.body.removeEventListener('contextmenu', this._eventHandlers.mousedisable);
}
};
Util.make_properties(Mouse, [
['target', 'ro', 'dom'], // DOM element that captures mouse input
['notify', 'ro', 'func'], // Function to call to notify whenever a mouse event is received
['focused', 'rw', 'bool'], // Capture and send mouse clicks/movement
['scale', 'rw', 'float'], // Viewport scale factor 0.0 - 1.0
['onMouseButton', 'rw', 'func'], // Handler for mouse button click/release
['onMouseMove', 'rw', 'func'], // Handler for mouse movement
['touchButton', 'rw', 'int'] // Button mask (1, 2, 4) for touch devices (0 means ignore clicks)
]);
})();
core/input/keysym.js
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var KeyTable = {
XK_VoidSymbol: 0xffffff, /* Void symbol */
XK_BackSpace: 0xff08, /* Back space, back char */
XK_Tab: 0xff09,
XK_Linefeed: 0xff0a, /* Linefeed, LF */
XK_Clear: 0xff0b,
XK_Return: 0xff0d, /* Return, enter */
XK_Pause: 0xff13, /* Pause, hold */
XK_Scroll_Lock: 0xff14,
XK_Sys_Req: 0xff15,
XK_Escape: 0xff1b,
XK_Delete: 0xffff, /* Delete, rubout */
/* Cursor control & motion */
XK_Home: 0xff50,
XK_Left: 0xff51, /* Move left, left arrow */
XK_Up: 0xff52, /* Move up, up arrow */
XK_Right: 0xff53, /* Move right, right arrow */
XK_Down: 0xff54, /* Move down, down arrow */
XK_Prior: 0xff55, /* Prior, previous */
XK_Page_Up: 0xff55,
XK_Next: 0xff56, /* Next */
XK_Page_Down: 0xff56,
XK_End: 0xff57, /* EOL */
XK_Begin: 0xff58, /* BOL */
/* Misc functions */
XK_Select: 0xff60, /* Select, mark */
XK_Print: 0xff61,
XK_Execute: 0xff62, /* Execute, run, do */
XK_Insert: 0xff63, /* Insert, insert here */
XK_Undo: 0xff65,
XK_Redo: 0xff66, /* Redo, again */
XK_Menu: 0xff67,
XK_Find: 0xff68, /* Find, search */
XK_Cancel: 0xff69, /* Cancel, stop, abort, exit */
XK_Help: 0xff6a, /* Help */
XK_Break: 0xff6b,
XK_Mode_switch: 0xff7e, /* Character set switch */
XK_script_switch: 0xff7e, /* Alias for mode_switch */
XK_Num_Lock: 0xff7f,
/* Keypad functions, keypad numbers cleverly chosen to map to ASCII */
XK_KP_Space: 0xff80, /* Space */
XK_KP_Tab: 0xff89,
XK_KP_Enter: 0xff8d, /* Enter */
XK_KP_F1: 0xff91, /* PF1, KP_A, ... */
XK_KP_F2: 0xff92,
XK_KP_F3: 0xff93,
XK_KP_F4: 0xff94,
XK_KP_Home: 0xff95,
XK_KP_Left: 0xff96,
XK_KP_Up: 0xff97,
XK_KP_Right: 0xff98,
XK_KP_Down: 0xff99,
XK_KP_Prior: 0xff9a,
XK_KP_Page_Up: 0xff9a,
XK_KP_Next: 0xff9b,
XK_KP_Page_Down: 0xff9b,
XK_KP_End: 0xff9c,
XK_KP_Begin: 0xff9d,
XK_KP_Insert: 0xff9e,
XK_KP_Delete: 0xff9f,
XK_KP_Equal: 0xffbd, /* Equals */
XK_KP_Multiply: 0xffaa,
XK_KP_Add: 0xffab,
XK_KP_Separator: 0xffac, /* Separator, often comma */
XK_KP_Subtract: 0xffad,
XK_KP_Decimal: 0xffae,
XK_KP_Divide: 0xffaf,
XK_KP_0: 0xffb0,
XK_KP_1: 0xffb1,
XK_KP_2: 0xffb2,
XK_KP_3: 0xffb3,
XK_KP_4: 0xffb4,
XK_KP_5: 0xffb5,
XK_KP_6: 0xffb6,
XK_KP_7: 0xffb7,
XK_KP_8: 0xffb8,
XK_KP_9: 0xffb9,
/*
* Auxiliary functions; note the duplicate definitions for left and right
* function keys; Sun keyboards and a few other manufacturers have such
* function key groups on the left and/or right sides of the keyboard.
* We've not found a keyboard with more than 35 function keys total.
*/
XK_F1: 0xffbe,
XK_F2: 0xffbf,
XK_F3: 0xffc0,
XK_F4: 0xffc1,
XK_F5: 0xffc2,
XK_F6: 0xffc3,
XK_F7: 0xffc4,
XK_F8: 0xffc5,
XK_F9: 0xffc6,
XK_F10: 0xffc7,
XK_F11: 0xffc8,
XK_L1: 0xffc8,
XK_F12: 0xffc9,
XK_L2: 0xffc9,
XK_F13: 0xffca,
XK_L3: 0xffca,
XK_F14: 0xffcb,
XK_L4: 0xffcb,
XK_F15: 0xffcc,
XK_L5: 0xffcc,
XK_F16: 0xffcd,
XK_L6: 0xffcd,
XK_F17: 0xffce,
XK_L7: 0xffce,
XK_F18: 0xffcf,
XK_L8: 0xffcf,
XK_F19: 0xffd0,
XK_L9: 0xffd0,
XK_F20: 0xffd1,
XK_L10: 0xffd1,
XK_F21: 0xffd2,
XK_R1: 0xffd2,
XK_F22: 0xffd3,
XK_R2: 0xffd3,
XK_F23: 0xffd4,
XK_R3: 0xffd4,
XK_F24: 0xffd5,
XK_R4: 0xffd5,
XK_F25: 0xffd6,
XK_R5: 0xffd6,
XK_F26: 0xffd7,
XK_R6: 0xffd7,
XK_F27: 0xffd8,
XK_R7: 0xffd8,
XK_F28: 0xffd9,
XK_R8: 0xffd9,
XK_F29: 0xffda,
XK_R9: 0xffda,
XK_F30: 0xffdb,
XK_R10: 0xffdb,
XK_F31: 0xffdc,
XK_R11: 0xffdc,
XK_F32: 0xffdd,
XK_R12: 0xffdd,
XK_F33: 0xffde,
XK_R13: 0xffde,
XK_F34: 0xffdf,
XK_R14: 0xffdf,
XK_F35: 0xffe0,
XK_R15: 0xffe0,
/* Modifiers */
XK_Shift_L: 0xffe1, /* Left shift */
XK_Shift_R: 0xffe2, /* Right shift */
XK_Control_L: 0xffe3, /* Left control */
XK_Control_R: 0xffe4, /* Right control */
XK_Caps_Lock: 0xffe5, /* Caps lock */
XK_Shift_Lock: 0xffe6, /* Shift lock */
XK_Meta_L: 0xffe7, /* Left meta */
XK_Meta_R: 0xffe8, /* Right meta */
XK_Alt_L: 0xffe9, /* Left alt */
XK_Alt_R: 0xffea, /* Right alt */
XK_Super_L: 0xffeb, /* Left super */
XK_Super_R: 0xffec, /* Right super */
XK_Hyper_L: 0xffed, /* Left hyper */
XK_Hyper_R: 0xffee, /* Right hyper */
XK_ISO_Level3_Shift: 0xfe03, /* AltGr */
/*
* Latin 1
* (ISO/IEC 8859-1: Unicode U+0020..U+00FF)
* Byte 3: 0
*/
XK_space: 0x0020, /* U+0020 SPACE */
XK_exclam: 0x0021, /* U+0021 EXCLAMATION MARK */
XK_quotedbl: 0x0022, /* U+0022 QUOTATION MARK */
XK_numbersign: 0x0023, /* U+0023 NUMBER SIGN */
XK_dollar: 0x0024, /* U+0024 DOLLAR SIGN */
XK_percent: 0x0025, /* U+0025 PERCENT SIGN */
XK_ampersand: 0x0026, /* U+0026 AMPERSAND */
XK_apostrophe: 0x0027, /* U+0027 APOSTROPHE */
XK_quoteright: 0x0027, /* deprecated */
XK_parenleft: 0x0028, /* U+0028 LEFT PARENTHESIS */
XK_parenright: 0x0029, /* U+0029 RIGHT PARENTHESIS */
XK_asterisk: 0x002a, /* U+002A ASTERISK */
XK_plus: 0x002b, /* U+002B PLUS SIGN */
XK_comma: 0x002c, /* U+002C COMMA */
XK_minus: 0x002d, /* U+002D HYPHEN-MINUS */
XK_period: 0x002e, /* U+002E FULL STOP */
XK_slash: 0x002f, /* U+002F SOLIDUS */
XK_0: 0x0030, /* U+0030 DIGIT ZERO */
XK_1: 0x0031, /* U+0031 DIGIT ONE */
XK_2: 0x0032, /* U+0032 DIGIT TWO */
XK_3: 0x0033, /* U+0033 DIGIT THREE */
XK_4: 0x0034, /* U+0034 DIGIT FOUR */
XK_5: 0x0035, /* U+0035 DIGIT FIVE */
XK_6: 0x0036, /* U+0036 DIGIT SIX */
XK_7: 0x0037, /* U+0037 DIGIT SEVEN */
XK_8: 0x0038, /* U+0038 DIGIT EIGHT */
XK_9: 0x0039, /* U+0039 DIGIT NINE */
XK_colon: 0x003a, /* U+003A COLON */
XK_semicolon: 0x003b, /* U+003B SEMICOLON */
XK_less: 0x003c, /* U+003C LESS-THAN SIGN */
XK_equal: 0x003d, /* U+003D EQUALS SIGN */
XK_greater: 0x003e, /* U+003E GREATER-THAN SIGN */
XK_question: 0x003f, /* U+003F QUESTION MARK */
XK_at: 0x0040, /* U+0040 COMMERCIAL AT */
XK_A: 0x0041, /* U+0041 LATIN CAPITAL LETTER A */
XK_B: 0x0042, /* U+0042 LATIN CAPITAL LETTER B */
XK_C: 0x0043, /* U+0043 LATIN CAPITAL LETTER C */
XK_D: 0x0044, /* U+0044 LATIN CAPITAL LETTER D */
XK_E: 0x0045, /* U+0045 LATIN CAPITAL LETTER E */
XK_F: 0x0046, /* U+0046 LATIN CAPITAL LETTER F */
XK_G: 0x0047, /* U+0047 LATIN CAPITAL LETTER G */
XK_H: 0x0048, /* U+0048 LATIN CAPITAL LETTER H */
XK_I: 0x0049, /* U+0049 LATIN CAPITAL LETTER I */
XK_J: 0x004a, /* U+004A LATIN CAPITAL LETTER J */
XK_K: 0x004b, /* U+004B LATIN CAPITAL LETTER K */
XK_L: 0x004c, /* U+004C LATIN CAPITAL LETTER L */
XK_M: 0x004d, /* U+004D LATIN CAPITAL LETTER M */
XK_N: 0x004e, /* U+004E LATIN CAPITAL LETTER N */
XK_O: 0x004f, /* U+004F LATIN CAPITAL LETTER O */
XK_P: 0x0050, /* U+0050 LATIN CAPITAL LETTER P */
XK_Q: 0x0051, /* U+0051 LATIN CAPITAL LETTER Q */
XK_R: 0x0052, /* U+0052 LATIN CAPITAL LETTER R */
XK_S: 0x0053, /* U+0053 LATIN CAPITAL LETTER S */
XK_T: 0x0054, /* U+0054 LATIN CAPITAL LETTER T */
XK_U: 0x0055, /* U+0055 LATIN CAPITAL LETTER U */
XK_V: 0x0056, /* U+0056 LATIN CAPITAL LETTER V */
XK_W: 0x0057, /* U+0057 LATIN CAPITAL LETTER W */
XK_X: 0x0058, /* U+0058 LATIN CAPITAL LETTER X */
XK_Y: 0x0059, /* U+0059 LATIN CAPITAL LETTER Y */
XK_Z: 0x005a, /* U+005A LATIN CAPITAL LETTER Z */
XK_bracketleft: 0x005b, /* U+005B LEFT SQUARE BRACKET */
XK_backslash: 0x005c, /* U+005C REVERSE SOLIDUS */
XK_bracketright: 0x005d, /* U+005D RIGHT SQUARE BRACKET */
XK_asciicircum: 0x005e, /* U+005E CIRCUMFLEX ACCENT */
XK_underscore: 0x005f, /* U+005F LOW LINE */
XK_grave: 0x0060, /* U+0060 GRAVE ACCENT */
XK_quoteleft: 0x0060, /* deprecated */
XK_a: 0x0061, /* U+0061 LATIN SMALL LETTER A */
XK_b: 0x0062, /* U+0062 LATIN SMALL LETTER B */
XK_c: 0x0063, /* U+0063 LATIN SMALL LETTER C */
XK_d: 0x0064, /* U+0064 LATIN SMALL LETTER D */
XK_e: 0x0065, /* U+0065 LATIN SMALL LETTER E */
XK_f: 0x0066, /* U+0066 LATIN SMALL LETTER F */
XK_g: 0x0067, /* U+0067 LATIN SMALL LETTER G */
XK_h: 0x0068, /* U+0068 LATIN SMALL LETTER H */
XK_i: 0x0069, /* U+0069 LATIN SMALL LETTER I */
XK_j: 0x006a, /* U+006A LATIN SMALL LETTER J */
XK_k: 0x006b, /* U+006B LATIN SMALL LETTER K */
XK_l: 0x006c, /* U+006C LATIN SMALL LETTER L */
XK_m: 0x006d, /* U+006D LATIN SMALL LETTER M */
XK_n: 0x006e, /* U+006E LATIN SMALL LETTER N */
XK_o: 0x006f, /* U+006F LATIN SMALL LETTER O */
XK_p: 0x0070, /* U+0070 LATIN SMALL LETTER P */
XK_q: 0x0071, /* U+0071 LATIN SMALL LETTER Q */
XK_r: 0x0072, /* U+0072 LATIN SMALL LETTER R */
XK_s: 0x0073, /* U+0073 LATIN SMALL LETTER S */
XK_t: 0x0074, /* U+0074 LATIN SMALL LETTER T */
XK_u: 0x0075, /* U+0075 LATIN SMALL LETTER U */
XK_v: 0x0076, /* U+0076 LATIN SMALL LETTER V */
XK_w: 0x0077, /* U+0077 LATIN SMALL LETTER W */
XK_x: 0x0078, /* U+0078 LATIN SMALL LETTER X */
XK_y: 0x0079, /* U+0079 LATIN SMALL LETTER Y */
XK_z: 0x007a, /* U+007A LATIN SMALL LETTER Z */
XK_braceleft: 0x007b, /* U+007B LEFT CURLY BRACKET */
XK_bar: 0x007c, /* U+007C VERTICAL LINE */
XK_braceright: 0x007d, /* U+007D RIGHT CURLY BRACKET */
XK_asciitilde: 0x007e, /* U+007E TILDE */
XK_nobreakspace: 0x00a0, /* U+00A0 NO-BREAK SPACE */
XK_exclamdown: 0x00a1, /* U+00A1 INVERTED EXCLAMATION MARK */
XK_cent: 0x00a2, /* U+00A2 CENT SIGN */
XK_sterling: 0x00a3, /* U+00A3 POUND SIGN */
XK_currency: 0x00a4, /* U+00A4 CURRENCY SIGN */
XK_yen: 0x00a5, /* U+00A5 YEN SIGN */
XK_brokenbar: 0x00a6, /* U+00A6 BROKEN BAR */
XK_section: 0x00a7, /* U+00A7 SECTION SIGN */
XK_diaeresis: 0x00a8, /* U+00A8 DIAERESIS */
XK_copyright: 0x00a9, /* U+00A9 COPYRIGHT SIGN */
XK_ordfeminine: 0x00aa, /* U+00AA FEMININE ORDINAL INDICATOR */
XK_guillemotleft: 0x00ab, /* U+00AB LEFT-POINTING DOUBLE ANGLE QUOTATION MARK */
XK_notsign: 0x00ac, /* U+00AC NOT SIGN */
XK_hyphen: 0x00ad, /* U+00AD SOFT HYPHEN */
XK_registered: 0x00ae, /* U+00AE REGISTERED SIGN */
XK_macron: 0x00af, /* U+00AF MACRON */
XK_degree: 0x00b0, /* U+00B0 DEGREE SIGN */
XK_plusminus: 0x00b1, /* U+00B1 PLUS-MINUS SIGN */
XK_twosuperior: 0x00b2, /* U+00B2 SUPERSCRIPT TWO */
XK_threesuperior: 0x00b3, /* U+00B3 SUPERSCRIPT THREE */
XK_acute: 0x00b4, /* U+00B4 ACUTE ACCENT */
XK_mu: 0x00b5, /* U+00B5 MICRO SIGN */
XK_paragraph: 0x00b6, /* U+00B6 PILCROW SIGN */
XK_periodcentered: 0x00b7, /* U+00B7 MIDDLE DOT */
XK_cedilla: 0x00b8, /* U+00B8 CEDILLA */
XK_onesuperior: 0x00b9, /* U+00B9 SUPERSCRIPT ONE */
XK_masculine: 0x00ba, /* U+00BA MASCULINE ORDINAL INDICATOR */
XK_guillemotright: 0x00bb, /* U+00BB RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK */
XK_onequarter: 0x00bc, /* U+00BC VULGAR FRACTION ONE QUARTER */
XK_onehalf: 0x00bd, /* U+00BD VULGAR FRACTION ONE HALF */
XK_threequarters: 0x00be, /* U+00BE VULGAR FRACTION THREE QUARTERS */
XK_questiondown: 0x00bf, /* U+00BF INVERTED QUESTION MARK */
XK_Agrave: 0x00c0, /* U+00C0 LATIN CAPITAL LETTER A WITH GRAVE */
XK_Aacute: 0x00c1, /* U+00C1 LATIN CAPITAL LETTER A WITH ACUTE */
XK_Acircumflex: 0x00c2, /* U+00C2 LATIN CAPITAL LETTER A WITH CIRCUMFLEX */
XK_Atilde: 0x00c3, /* U+00C3 LATIN CAPITAL LETTER A WITH TILDE */
XK_Adiaeresis: 0x00c4, /* U+00C4 LATIN CAPITAL LETTER A WITH DIAERESIS */
XK_Aring: 0x00c5, /* U+00C5 LATIN CAPITAL LETTER A WITH RING ABOVE */
XK_AE: 0x00c6, /* U+00C6 LATIN CAPITAL LETTER AE */
XK_Ccedilla: 0x00c7, /* U+00C7 LATIN CAPITAL LETTER C WITH CEDILLA */
XK_Egrave: 0x00c8, /* U+00C8 LATIN CAPITAL LETTER E WITH GRAVE */
XK_Eacute: 0x00c9, /* U+00C9 LATIN CAPITAL LETTER E WITH ACUTE */
XK_Ecircumflex: 0x00ca, /* U+00CA LATIN CAPITAL LETTER E WITH CIRCUMFLEX */
XK_Ediaeresis: 0x00cb, /* U+00CB LATIN CAPITAL LETTER E WITH DIAERESIS */
XK_Igrave: 0x00cc, /* U+00CC LATIN CAPITAL LETTER I WITH GRAVE */
XK_Iacute: 0x00cd, /* U+00CD LATIN CAPITAL LETTER I WITH ACUTE */
XK_Icircumflex: 0x00ce, /* U+00CE LATIN CAPITAL LETTER I WITH CIRCUMFLEX */
XK_Idiaeresis: 0x00cf, /* U+00CF LATIN CAPITAL LETTER I WITH DIAERESIS */
XK_ETH: 0x00d0, /* U+00D0 LATIN CAPITAL LETTER ETH */
XK_Eth: 0x00d0, /* deprecated */
XK_Ntilde: 0x00d1, /* U+00D1 LATIN CAPITAL LETTER N WITH TILDE */
XK_Ograve: 0x00d2, /* U+00D2 LATIN CAPITAL LETTER O WITH GRAVE */
XK_Oacute: 0x00d3, /* U+00D3 LATIN CAPITAL LETTER O WITH ACUTE */
XK_Ocircumflex: 0x00d4, /* U+00D4 LATIN CAPITAL LETTER O WITH CIRCUMFLEX */
XK_Otilde: 0x00d5, /* U+00D5 LATIN CAPITAL LETTER O WITH TILDE */
XK_Odiaeresis: 0x00d6, /* U+00D6 LATIN CAPITAL LETTER O WITH DIAERESIS */
XK_multiply: 0x00d7, /* U+00D7 MULTIPLICATION SIGN */
XK_Oslash: 0x00d8, /* U+00D8 LATIN CAPITAL LETTER O WITH STROKE */
XK_Ooblique: 0x00d8, /* U+00D8 LATIN CAPITAL LETTER O WITH STROKE */
XK_Ugrave: 0x00d9, /* U+00D9 LATIN CAPITAL LETTER U WITH GRAVE */
XK_Uacute: 0x00da, /* U+00DA LATIN CAPITAL LETTER U WITH ACUTE */
XK_Ucircumflex: 0x00db, /* U+00DB LATIN CAPITAL LETTER U WITH CIRCUMFLEX */
XK_Udiaeresis: 0x00dc, /* U+00DC LATIN CAPITAL LETTER U WITH DIAERESIS */
XK_Yacute: 0x00dd, /* U+00DD LATIN CAPITAL LETTER Y WITH ACUTE */
XK_THORN: 0x00de, /* U+00DE LATIN CAPITAL LETTER THORN */
XK_Thorn: 0x00de, /* deprecated */
XK_ssharp: 0x00df, /* U+00DF LATIN SMALL LETTER SHARP S */
XK_agrave: 0x00e0, /* U+00E0 LATIN SMALL LETTER A WITH GRAVE */
XK_aacute: 0x00e1, /* U+00E1 LATIN SMALL LETTER A WITH ACUTE */
XK_acircumflex: 0x00e2, /* U+00E2 LATIN SMALL LETTER A WITH CIRCUMFLEX */
XK_atilde: 0x00e3, /* U+00E3 LATIN SMALL LETTER A WITH TILDE */
XK_adiaeresis: 0x00e4, /* U+00E4 LATIN SMALL LETTER A WITH DIAERESIS */
XK_aring: 0x00e5, /* U+00E5 LATIN SMALL LETTER A WITH RING ABOVE */
XK_ae: 0x00e6, /* U+00E6 LATIN SMALL LETTER AE */
XK_ccedilla: 0x00e7, /* U+00E7 LATIN SMALL LETTER C WITH CEDILLA */
XK_egrave: 0x00e8, /* U+00E8 LATIN SMALL LETTER E WITH GRAVE */
XK_eacute: 0x00e9, /* U+00E9 LATIN SMALL LETTER E WITH ACUTE */
XK_ecircumflex: 0x00ea, /* U+00EA LATIN SMALL LETTER E WITH CIRCUMFLEX */
XK_ediaeresis: 0x00eb, /* U+00EB LATIN SMALL LETTER E WITH DIAERESIS */
XK_igrave: 0x00ec, /* U+00EC LATIN SMALL LETTER I WITH GRAVE */
XK_iacute: 0x00ed, /* U+00ED LATIN SMALL LETTER I WITH ACUTE */
XK_icircumflex: 0x00ee, /* U+00EE LATIN SMALL LETTER I WITH CIRCUMFLEX */
XK_idiaeresis: 0x00ef, /* U+00EF LATIN SMALL LETTER I WITH DIAERESIS */
XK_eth: 0x00f0, /* U+00F0 LATIN SMALL LETTER ETH */
XK_ntilde: 0x00f1, /* U+00F1 LATIN SMALL LETTER N WITH TILDE */
XK_ograve: 0x00f2, /* U+00F2 LATIN SMALL LETTER O WITH GRAVE */
XK_oacute: 0x00f3, /* U+00F3 LATIN SMALL LETTER O WITH ACUTE */
XK_ocircumflex: 0x00f4, /* U+00F4 LATIN SMALL LETTER O WITH CIRCUMFLEX */
XK_otilde: 0x00f5, /* U+00F5 LATIN SMALL LETTER O WITH TILDE */
XK_odiaeresis: 0x00f6, /* U+00F6 LATIN SMALL LETTER O WITH DIAERESIS */
XK_division: 0x00f7, /* U+00F7 DIVISION SIGN */
XK_oslash: 0x00f8, /* U+00F8 LATIN SMALL LETTER O WITH STROKE */
XK_ooblique: 0x00f8, /* U+00F8 LATIN SMALL LETTER O WITH STROKE */
XK_ugrave: 0x00f9, /* U+00F9 LATIN SMALL LETTER U WITH GRAVE */
XK_uacute: 0x00fa, /* U+00FA LATIN SMALL LETTER U WITH ACUTE */
XK_ucircumflex: 0x00fb, /* U+00FB LATIN SMALL LETTER U WITH CIRCUMFLEX */
XK_udiaeresis: 0x00fc, /* U+00FC LATIN SMALL LETTER U WITH DIAERESIS */
XK_yacute: 0x00fd, /* U+00FD LATIN SMALL LETTER Y WITH ACUTE */
XK_thorn: 0x00fe, /* U+00FE LATIN SMALL LETTER THORN */
XK_ydiaeresis: 0x00ff, /* U+00FF LATIN SMALL LETTER Y WITH DIAERESIS */
};
/* [module] export default KeyTable; */
core/input/keysymdef.js
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core/input/util.js
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/* [module]
* import KeyTable from "./keysym";
* import keysyms from "./keysymdef";
*/
var KeyboardUtil = {};
(function() {
"use strict";
function substituteCodepoint(cp) {
// Any Unicode code points which do not have corresponding keysym entries
// can be swapped out for another code point by adding them to this table
var substitutions = {
// {S,s} with comma below -> {S,s} with cedilla
0x218 : 0x15e,
0x219 : 0x15f,
// {T,t} with comma below -> {T,t} with cedilla
0x21a : 0x162,
0x21b : 0x163
};
var sub = substitutions[cp];
return sub ? sub : cp;
}
function isMac() {
return navigator && !!(/mac/i).exec(navigator.platform);
}
function isWindows() {
return navigator && !!(/win/i).exec(navigator.platform);
}
function isLinux() {
return navigator && !!(/linux/i).exec(navigator.platform);
}
// Return true if a modifier which is not the specified char modifier (and is not shift) is down
function hasShortcutModifier(charModifier, currentModifiers) {
var mods = {};
for (var key in currentModifiers) {
if (parseInt(key) !== KeyTable.XK_Shift_L) {
mods[key] = currentModifiers[key];
}
}
var sum = 0;
for (var k in currentModifiers) {
if (mods[k]) {
++sum;
}
}
if (hasCharModifier(charModifier, mods)) {
return sum > charModifier.length;
}
else {
return sum > 0;
}
}
// Return true if the specified char modifier is currently down
function hasCharModifier(charModifier, currentModifiers) {
if (charModifier.length === 0) { return false; }
for (var i = 0; i < charModifier.length; ++i) {
if (!currentModifiers[charModifier[i]]) {
return false;
}
}
return true;
}
// Helper object tracking modifier key state
// and generates fake key events to compensate if it gets out of sync
function ModifierSync(charModifier) {
if (!charModifier) {
if (isMac()) {
// on Mac, Option (AKA Alt) is used as a char modifier
charModifier = [KeyTable.XK_Alt_L];
}
else if (isWindows()) {
// on Windows, Ctrl+Alt is used as a char modifier
charModifier = [KeyTable.XK_Alt_L, KeyTable.XK_Control_L];
}
else if (isLinux()) {
// on Linux, ISO Level 3 Shift (AltGr) is used as a char modifier
charModifier = [KeyTable.XK_ISO_Level3_Shift];
}
else {
charModifier = [];
}
}
var state = {};
state[KeyTable.XK_Control_L] = false;
state[KeyTable.XK_Alt_L] = false;
state[KeyTable.XK_ISO_Level3_Shift] = false;
state[KeyTable.XK_Shift_L] = false;
state[KeyTable.XK_Meta_L] = false;
function sync(evt, keysym) {
var result = [];
function syncKey(keysym) {
return {keysym: keysyms.lookup(keysym), type: state[keysym] ? 'keydown' : 'keyup'};
}
if (evt.ctrlKey !== undefined &&
evt.ctrlKey !== state[KeyTable.XK_Control_L] && keysym !== KeyTable.XK_Control_L) {
state[KeyTable.XK_Control_L] = evt.ctrlKey;
result.push(syncKey(KeyTable.XK_Control_L));
}
if (evt.altKey !== undefined &&
evt.altKey !== state[KeyTable.XK_Alt_L] && keysym !== KeyTable.XK_Alt_L) {
state[KeyTable.XK_Alt_L] = evt.altKey;
result.push(syncKey(KeyTable.XK_Alt_L));
}
if (evt.altGraphKey !== undefined &&
evt.altGraphKey !== state[KeyTable.XK_ISO_Level3_Shift] && keysym !== KeyTable.XK_ISO_Level3_Shift) {
state[KeyTable.XK_ISO_Level3_Shift] = evt.altGraphKey;
result.push(syncKey(KeyTable.XK_ISO_Level3_Shift));
}
if (evt.shiftKey !== undefined &&
evt.shiftKey !== state[KeyTable.XK_Shift_L] && keysym !== KeyTable.XK_Shift_L) {
state[KeyTable.XK_Shift_L] = evt.shiftKey;
result.push(syncKey(KeyTable.XK_Shift_L));
}
if (evt.metaKey !== undefined &&
evt.metaKey !== state[KeyTable.XK_Meta_L] && keysym !== KeyTable.XK_Meta_L) {
state[KeyTable.XK_Meta_L] = evt.metaKey;
result.push(syncKey(KeyTable.XK_Meta_L));
}
return result;
}
function syncKeyEvent(evt, down) {
var obj = getKeysym(evt);
var keysym = obj ? obj.keysym : null;
// first, apply the event itself, if relevant
if (keysym !== null && state[keysym] !== undefined) {
state[keysym] = down;
}
return sync(evt, keysym);
}
return {
// sync on the appropriate keyboard event
keydown: function(evt) { return syncKeyEvent(evt, true);},
keyup: function(evt) { return syncKeyEvent(evt, false);},
// Call this with a non-keyboard event (such as mouse events) to use its modifier state to synchronize anyway
syncAny: function(evt) { return sync(evt);},
// is a shortcut modifier down?
hasShortcutModifier: function() { return hasShortcutModifier(charModifier, state); },
// if a char modifier is down, return the keys it consists of, otherwise return null
activeCharModifier: function() { return hasCharModifier(charModifier, state) ? charModifier : null; }
};
}
// Get a key ID from a keyboard event
// May be a string or an integer depending on the available properties
function getKey(evt){
if ('keyCode' in evt && 'key' in evt) {
return evt.key + ':' + evt.keyCode;
}
else if ('keyCode' in evt) {
return evt.keyCode;
}
else {
return evt.key;
}
}
// Get the most reliable keysym value we can get from a key event
// if char/charCode is available, prefer those, otherwise fall back to key/keyCode/which
function getKeysym(evt){
var codepoint;
if (evt.char && evt.char.length === 1) {
codepoint = evt.char.charCodeAt();
}
else if (evt.charCode) {
codepoint = evt.charCode;
}
else if (evt.keyCode && evt.type === 'keypress') {
// IE10 stores the char code as keyCode, and has no other useful properties
codepoint = evt.keyCode;
}
if (codepoint) {
var res = keysyms.fromUnicode(substituteCodepoint(codepoint));
if (res) {
return res;
}
}
// we could check evt.key here.
// Legal values are defined in http://www.w3.org/TR/DOM-Level-3-Events/#key-values-list,
// so we "just" need to map them to keysym, but AFAIK this is only available in IE10, which also provides evt.key
// so we don't *need* it yet
if (evt.keyCode) {
return keysyms.lookup(keysymFromKeyCode(evt.keyCode, evt.shiftKey));
}
if (evt.which) {
return keysyms.lookup(keysymFromKeyCode(evt.which, evt.shiftKey));
}
return null;
}
// Given a keycode, try to predict which keysym it might be.
// If the keycode is unknown, null is returned.
function keysymFromKeyCode(keycode, shiftPressed) {
if (typeof(keycode) !== 'number') {
return null;
}
// won't be accurate for azerty
if (keycode >= 0x30 && keycode <= 0x39) {
return keycode; // digit
}
if (keycode >= 0x41 && keycode <= 0x5a) {
// remap to lowercase unless shift is down
return shiftPressed ? keycode : keycode + 32; // A-Z
}
if (keycode >= 0x60 && keycode <= 0x69) {
return KeyTable.XK_KP_0 + (keycode - 0x60); // numpad 0-9
}
switch(keycode) {
case 0x20: return KeyTable.XK_space;
case 0x6a: return KeyTable.XK_KP_Multiply;
case 0x6b: return KeyTable.XK_KP_Add;
case 0x6c: return KeyTable.XK_KP_Separator;
case 0x6d: return KeyTable.XK_KP_Subtract;
case 0x6e: return KeyTable.XK_KP_Decimal;
case 0x6f: return KeyTable.XK_KP_Divide;
case 0xbb: return KeyTable.XK_plus;
case 0xbc: return KeyTable.XK_comma;
case 0xbd: return KeyTable.XK_minus;
case 0xbe: return KeyTable.XK_period;
}
return nonCharacterKey({keyCode: keycode});
}
// if the key is a known non-character key (any key which doesn't generate character data)
// return its keysym value. Otherwise return null
function nonCharacterKey(evt) {
// evt.key not implemented yet
if (!evt.keyCode) { return null; }
var keycode = evt.keyCode;
if (keycode >= 0x70 && keycode <= 0x87) {
return KeyTable.XK_F1 + keycode - 0x70; // F1-F24
}
switch (keycode) {
case 8 : return KeyTable.XK_BackSpace;
case 13 : return KeyTable.XK_Return;
case 9 : return KeyTable.XK_Tab;
case 27 : return KeyTable.XK_Escape;
case 46 : return KeyTable.XK_Delete;
case 36 : return KeyTable.XK_Home;
case 35 : return KeyTable.XK_End;
case 33 : return KeyTable.XK_Page_Up;
case 34 : return KeyTable.XK_Page_Down;
case 45 : return KeyTable.XK_Insert;
case 37 : return KeyTable.XK_Left;
case 38 : return KeyTable.XK_Up;
case 39 : return KeyTable.XK_Right;
case 40 : return KeyTable.XK_Down;
case 16 : return KeyTable.XK_Shift_L;
case 17 : return KeyTable.XK_Control_L;
case 18 : return KeyTable.XK_Alt_L; // also: Option-key on Mac
case 224 : return KeyTable.XK_Meta_L;
case 225 : return KeyTable.XK_ISO_Level3_Shift; // AltGr
case 91 : return KeyTable.XK_Super_L; // also: Windows-key
case 92 : return KeyTable.XK_Super_R; // also: Windows-key
case 93 : return KeyTable.XK_Menu; // also: Windows-Menu, Command on Mac
default: return null;
}
}
KeyboardUtil.hasShortcutModifier = hasShortcutModifier;
KeyboardUtil.hasCharModifier = hasCharModifier;
KeyboardUtil.ModifierSync = ModifierSync;
KeyboardUtil.getKey = getKey;
KeyboardUtil.getKeysym = getKeysym;
KeyboardUtil.keysymFromKeyCode = keysymFromKeyCode;
KeyboardUtil.nonCharacterKey = nonCharacterKey;
KeyboardUtil.substituteCodepoint = substituteCodepoint;
})();
KeyboardUtil.QEMUKeyEventDecoder = function(modifierState, next) {
"use strict";
function sendAll(evts) {
for (var i = 0; i < evts.length; ++i) {
next(evts[i]);
}
}
var numPadCodes = ["Numpad0", "Numpad1", "Numpad2",
"Numpad3", "Numpad4", "Numpad5", "Numpad6",
"Numpad7", "Numpad8", "Numpad9", "NumpadDecimal"];
var numLockOnKeySyms = {
"Numpad0": 0xffb0, "Numpad1": 0xffb1, "Numpad2": 0xffb2,
"Numpad3": 0xffb3, "Numpad4": 0xffb4, "Numpad5": 0xffb5,
"Numpad6": 0xffb6, "Numpad7": 0xffb7, "Numpad8": 0xffb8,
"Numpad9": 0xffb9, "NumpadDecimal": 0xffac
};
var numLockOnKeyCodes = [96, 97, 98, 99, 100, 101, 102,
103, 104, 105, 108, 110];
function isNumPadMultiKey(evt) {
return (numPadCodes.indexOf(evt.code) !== -1);
}
function getNumPadKeySym(evt) {
if (numLockOnKeyCodes.indexOf(evt.keyCode) !== -1) {
return numLockOnKeySyms[evt.code];
}
return 0;
}
function process(evt, type) {
var result = {type: type};
result.code = evt.code;
result.keysym = 0;
if (isNumPadMultiKey(evt)) {
result.keysym = getNumPadKeySym(evt);
}
var hasModifier = modifierState.hasShortcutModifier() || !!modifierState.activeCharModifier();
var isShift = evt.keyCode === 0x10 || evt.key === 'Shift';
var suppress = !isShift && (type !== 'keydown' || modifierState.hasShortcutModifier() || !!KeyboardUtil.nonCharacterKey(evt));
next(result);
return suppress;
}
return {
keydown: function(evt) {
sendAll(modifierState.keydown(evt));
return process(evt, 'keydown');
},
keypress: function(evt) {
return true;
},
keyup: function(evt) {
sendAll(modifierState.keyup(evt));
return process(evt, 'keyup');
},
syncModifiers: function(evt) {
sendAll(modifierState.syncAny(evt));
},
releaseAll: function() { next({type: 'releaseall'}); }
};
};
KeyboardUtil.TrackQEMUKeyState = function(next) {
"use strict";
var state = [];
return function (evt) {
var last = state.length !== 0 ? state[state.length-1] : null;
switch (evt.type) {
case 'keydown':
if (!last || last.code !== evt.code) {
last = {code: evt.code};
if (state.length > 0 && state[state.length-1].code == 'ControlLeft') {
if (evt.code !== 'AltRight') {
next({code: 'ControlLeft', type: 'keydown', keysym: 0});
} else {
state.pop();
}
}
state.push(last);
}
if (evt.code !== 'ControlLeft') {
next(evt);
}
break;
case 'keyup':
if (state.length === 0) {
return;
}
var idx = null;
// do we have a matching key tracked as being down?
for (var i = 0; i !== state.length; ++i) {
if (state[i].code === evt.code) {
idx = i;
break;
}
}
// if we couldn't find a match (it happens), assume it was the last key pressed
if (idx === null) {
if (evt.code === 'ControlLeft') {
return;
}
idx = state.length - 1;
}
state.splice(idx, 1);
next(evt);
break;
case 'releaseall':
/* jshint shadow: true */
for (var i = 0; i < state.length; ++i) {
next({code: state[i].code, keysym: 0, type: 'keyup'});
}
/* jshint shadow: false */
state = [];
}
};
};
// Takes a DOM keyboard event and:
// - determines which keysym it represents
// - determines a keyId identifying the key that was pressed (corresponding to the key/keyCode properties on the DOM event)
// - synthesizes events to synchronize modifier key state between which modifiers are actually down, and which we thought were down
// - marks each event with an 'escape' property if a modifier was down which should be "escaped"
// - generates a "stall" event in cases where it might be necessary to wait and see if a keypress event follows a keydown
// This information is collected into an object which is passed to the next() function. (one call per event)
KeyboardUtil.KeyEventDecoder = function(modifierState, next) {
"use strict";
function sendAll(evts) {
for (var i = 0; i < evts.length; ++i) {
next(evts[i]);
}
}
function process(evt, type) {
var result = {type: type};
var keyId = KeyboardUtil.getKey(evt);
if (keyId) {
result.keyId = keyId;
}
var keysym = KeyboardUtil.getKeysym(evt);
var hasModifier = modifierState.hasShortcutModifier() || !!modifierState.activeCharModifier();
// Is this a case where we have to decide on the keysym right away, rather than waiting for the keypress?
// "special" keys like enter, tab or backspace don't send keypress events,
// and some browsers don't send keypresses at all if a modifier is down
if (keysym && (type !== 'keydown' || KeyboardUtil.nonCharacterKey(evt) || hasModifier)) {
result.keysym = keysym;
}
var isShift = evt.keyCode === 0x10 || evt.key === 'Shift';
// Should we prevent the browser from handling the event?
// Doing so on a keydown (in most browsers) prevents keypress from being generated
// so only do that if we have to.
var suppress = !isShift && (type !== 'keydown' || modifierState.hasShortcutModifier() || !!KeyboardUtil.nonCharacterKey(evt));
// If a char modifier is down on a keydown, we need to insert a stall,
// so VerifyCharModifier knows to wait and see if a keypress is comnig
var stall = type === 'keydown' && modifierState.activeCharModifier() && !KeyboardUtil.nonCharacterKey(evt);
// if a char modifier is pressed, get the keys it consists of (on Windows, AltGr is equivalent to Ctrl+Alt)
var active = modifierState.activeCharModifier();
// If we have a char modifier down, and we're able to determine a keysym reliably
// then (a) we know to treat the modifier as a char modifier,
// and (b) we'll have to "escape" the modifier to undo the modifier when sending the char.
if (active && keysym) {
var isCharModifier = false;
for (var i = 0; i < active.length; ++i) {
if (active[i] === keysym.keysym) {
isCharModifier = true;
}
}
if (type === 'keypress' && !isCharModifier) {
result.escape = modifierState.activeCharModifier();
}
}
if (stall) {
// insert a fake "stall" event
next({type: 'stall'});
}
next(result);
return suppress;
}
return {
keydown: function(evt) {
sendAll(modifierState.keydown(evt));
return process(evt, 'keydown');
},
keypress: function(evt) {
return process(evt, 'keypress');
},
keyup: function(evt) {
sendAll(modifierState.keyup(evt));
return process(evt, 'keyup');
},
syncModifiers: function(evt) {
sendAll(modifierState.syncAny(evt));
},
releaseAll: function() { next({type: 'releaseall'}); }
};
};
// Combines keydown and keypress events where necessary to handle char modifiers.
// On some OS'es, a char modifier is sometimes used as a shortcut modifier.
// For example, on Windows, AltGr is synonymous with Ctrl-Alt. On a Danish keyboard layout, AltGr-2 yields a @, but Ctrl-Alt-D does nothing
// so when used with the '2' key, Ctrl-Alt counts as a char modifier (and should be escaped), but when used with 'D', it does not.
// The only way we can distinguish these cases is to wait and see if a keypress event arrives
// When we receive a "stall" event, wait a few ms before processing the next keydown. If a keypress has also arrived, merge the two
KeyboardUtil.VerifyCharModifier = function(next) {
"use strict";
var queue = [];
var timer = null;
function process() {
if (timer) {
return;
}
var delayProcess = function () {
clearTimeout(timer);
timer = null;
process();
};
while (queue.length !== 0) {
var cur = queue[0];
queue = queue.splice(1);
switch (cur.type) {
case 'stall':
// insert a delay before processing available events.
/* jshint loopfunc: true */
timer = setTimeout(delayProcess, 5);
/* jshint loopfunc: false */
return;
case 'keydown':
// is the next element a keypress? Then we should merge the two
if (queue.length !== 0 && queue[0].type === 'keypress') {
// Firefox sends keypress even when no char is generated.
// so, if keypress keysym is the same as we'd have guessed from keydown,
// the modifier didn't have any effect, and should not be escaped
if (queue[0].escape && (!cur.keysym || cur.keysym.keysym !== queue[0].keysym.keysym)) {
cur.escape = queue[0].escape;
}
cur.keysym = queue[0].keysym;
queue = queue.splice(1);
}
break;
}
// swallow stall events, and pass all others to the next stage
if (cur.type !== 'stall') {
next(cur);
}
}
}
return function(evt) {
queue.push(evt);
process();
};
};
// Keeps track of which keys we (and the server) believe are down
// When a keyup is received, match it against this list, to determine the corresponding keysym(s)
// in some cases, a single key may produce multiple keysyms, so the corresponding keyup event must release all of these chars
// key repeat events should be merged into a single entry.
// Because we can't always identify which entry a keydown or keyup event corresponds to, we sometimes have to guess
KeyboardUtil.TrackKeyState = function(next) {
"use strict";
var state = [];
return function (evt) {
var last = state.length !== 0 ? state[state.length-1] : null;
switch (evt.type) {
case 'keydown':
// insert a new entry if last seen key was different.
if (!last || !evt.keyId || last.keyId !== evt.keyId) {
last = {keyId: evt.keyId, keysyms: {}};
state.push(last);
}
if (evt.keysym) {
// make sure last event contains this keysym (a single "logical" keyevent
// can cause multiple key events to be sent to the VNC server)
last.keysyms[evt.keysym.keysym] = evt.keysym;
last.ignoreKeyPress = true;
next(evt);
}
break;
case 'keypress':
if (!last) {
last = {keyId: evt.keyId, keysyms: {}};
state.push(last);
}
if (!evt.keysym) {
console.log('keypress with no keysym:', evt);
}
// If we didn't expect a keypress, and already sent a keydown to the VNC server
// based on the keydown, make sure to skip this event.
if (evt.keysym && !last.ignoreKeyPress) {
last.keysyms[evt.keysym.keysym] = evt.keysym;
evt.type = 'keydown';
next(evt);
}
break;
case 'keyup':
if (state.length === 0) {
return;
}
var idx = null;
// do we have a matching key tracked as being down?
for (var i = 0; i !== state.length; ++i) {
if (state[i].keyId === evt.keyId) {
idx = i;
break;
}
}
// if we couldn't find a match (it happens), assume it was the last key pressed
if (idx === null) {
idx = state.length - 1;
}
var item = state.splice(idx, 1)[0];
// for each keysym tracked by this key entry, clone the current event and override the keysym
var clone = (function(){
function Clone(){}
return function (obj) { Clone.prototype=obj; return new Clone(); };
}());
for (var key in item.keysyms) {
var out = clone(evt);
out.keysym = item.keysyms[key];
next(out);
}
break;
case 'releaseall':
/* jshint shadow: true */
for (var i = 0; i < state.length; ++i) {
for (var key in state[i].keysyms) {
var keysym = state[i].keysyms[key];
next({keyId: 0, keysym: keysym, type: 'keyup'});
}
}
/* jshint shadow: false */
state = [];
}
};
};
// Handles "escaping" of modifiers: if a char modifier is used to produce a keysym (such as AltGr-2 to generate an @),
// then the modifier must be "undone" before sending the @, and "redone" afterwards.
KeyboardUtil.EscapeModifiers = function(next) {
"use strict";
return function(evt) {
if (evt.type !== 'keydown' || evt.escape === undefined) {
next(evt);
return;
}
// undo modifiers
for (var i = 0; i < evt.escape.length; ++i) {
next({type: 'keyup', keyId: 0, keysym: keysyms.lookup(evt.escape[i])});
}
// send the character event
next(evt);
// redo modifiers
/* jshint shadow: true */
for (var i = 0; i < evt.escape.length; ++i) {
next({type: 'keydown', keyId: 0, keysym: keysyms.lookup(evt.escape[i])});
}
/* jshint shadow: false */
};
};
/* [module] export default KeyboardUtil; */
core/input/xtscancodes.js
+149
View File
@@ -0,0 +1,149 @@
var XtScancode = {
"Escape": 0x0001,
"Digit1": 0x0002,
"Digit2": 0x0003,
"Digit3": 0x0004,
"Digit4": 0x0005,
"Digit5": 0x0006,
"Digit6": 0x0007,
"Digit7": 0x0008,
"Digit8": 0x0009,
"Digit9": 0x000A,
"Digit0": 0x000B,
"Minus": 0x000C,
"Equal": 0x000D,
"Backspace": 0x000E,
"Tab": 0x000F,
"KeyQ": 0x0010,
"KeyW": 0x0011,
"KeyE": 0x0012,
"KeyR": 0x0013,
"KeyT": 0x0014,
"KeyY": 0x0015,
"KeyU": 0x0016,
"KeyI": 0x0017,
"KeyO": 0x0018,
"KeyP": 0x0019,
"BracketLeft": 0x001A,
"BracketRight": 0x001B,
"Enter": 0x001C,
"ControlLeft": 0x001D,
"KeyA": 0x001E,
"KeyS": 0x001F,
"KeyD": 0x0020,
"KeyF": 0x0021,
"KeyG": 0x0022,
"KeyH": 0x0023,
"KeyJ": 0x0024,
"KeyK": 0x0025,
"KeyL": 0x0026,
"Semicolon": 0x0027,
"Quote": 0x0028,
"Backquote": 0x0029,
"ShiftLeft": 0x002A,
"Backslash": 0x002B,
"KeyZ": 0x002C,
"KeyX": 0x002D,
"KeyC": 0x002E,
"KeyV": 0x002F,
"KeyB": 0x0030,
"KeyN": 0x0031,
"KeyM": 0x0032,
"Comma": 0x0033,
"Period": 0x0034,
"Slash": 0x0035,
"ShiftRight": 0x0036,
"NumpadMultiply": 0x0037,
"AltLeft": 0x0038,
"Space": 0x0039,
"CapsLock": 0x003A,
"F1": 0x003B,
"F2": 0x003C,
"F3": 0x003D,
"F4": 0x003E,
"F5": 0x003F,
"F6": 0x0040,
"F7": 0x0041,
"F8": 0x0042,
"F9": 0x0043,
"F10": 0x0044,
"Pause": 0xE045,
"ScrollLock": 0x0046,
"Numpad7": 0x0047,
"Numpad8": 0x0048,
"Numpad9": 0x0049,
"NumpadSubtract": 0x004A,
"Numpad4": 0x004B,
"Numpad5": 0x004C,
"Numpad6": 0x004D,
"NumpadAdd": 0x004E,
"Numpad1": 0x004F,
"Numpad2": 0x0050,
"Numpad3": 0x0051,
"Numpad0": 0x0052,
"NumpadDecimal": 0x0053,
"IntlBackslash": 0x0056,
"F11": 0x0057,
"F12": 0x0058,
"IntlYen": 0x007D,
"MediaTrackPrevious": 0xE010,
"MediaTrackNext": 0xE019,
"NumpadEnter": 0xE01C,
"ControlRight": 0xE01D,
"VolumeMute": 0xE020,
"MediaPlayPause": 0xE022,
"MediaStop": 0xE024,
"VolumeDown": 0xE02E,
"VolumeUp": 0xE030,
"BrowserHome": 0xE032,
"NumpadDivide": 0xE035,
"PrintScreen": 0xE037,
"AltRight": 0xE038,
"NumLock": 0x0045,
"Home": 0xE047,
"ArrowUp": 0xE048,
"PageUp": 0xE049,
"ArrowLeft": 0xE04B,
"ArrowRight": 0xE04D,
"End": 0xE04F,
"ArrowDown": 0xE050,
"PageDown": 0xE051,
"Insert": 0xE052,
"Delete": 0xE053,
"OSLeft": 0xE05B,
"OSRight": 0xE05C,
"ContextMenu": 0xE05D,
"BrowserSearch": 0xE065,
"BrowserFavorites": 0xE066,
"BrowserRefresh": 0xE067,
"BrowserStop": 0xE068,
"BrowserForward": 0xE069,
"BrowserBack": 0xE06A,
"NumpadComma": 0x007E,
"NumpadEqual": 0x0059,
"F13": 0x0064,
"F14": 0x0065,
"F15": 0x0066,
"F16": 0x0067,
"F17": 0x0068,
"F18": 0x0069,
"F19": 0x006A,
"F20": 0x006B,
"F21": 0x006C,
"F22": 0x006D,
"F23": 0x006E,
"F24": 0x0076,
"KanaMode": 0x0070,
"Lang2": 0x0071,
"Lang1": 0x0072,
"IntlRo": 0x0073,
"Convert": 0x0079,
"NonConvert": 0x007B,
"LaunchApp2": 0xE021,
"Power": 0xE05E,
"LaunchApp1": 0xE06B,
"LaunchMail": 0xE06C,
"MediaSelect": 0xE06D,
};
/* [module] export default XtScancode */