tdf#124178: Handle non-BMP character input on mobile devices
Sadly, we must split such into a surrogate pair.
diff --git a/loleaflet/src/control/Control.MobileInput.js b/loleaflet/src/control/Control.MobileInput.js
index 467f44d..d1f65b2 100644
--- a/loleaflet/src/control/Control.MobileInput.js
+++ b/loleaflet/src/control/Control.MobileInput.js
@@ -108,6 +108,12 @@
.on(this._textArea, 'blur', this.onLostFocus, this);
},
_getSurrogatePair: function(codePoint) {
var highSurrogate = Math.floor((codePoint - 0x10000) / 0x400) + 0xD800;
var lowSurrogate = (codePoint - 0x10000) % 0x400 + 0xDC00;
return [highSurrogate, lowSurrogate];
},
onKeyEvents: function (e) {
var keyCode = e.keyCode,
charCode = e.charCode,
@@ -147,12 +153,27 @@
unoKeyCode = handler._toUNOKeyCode(keyCode);
}
docLayer._postKeyboardEvent('input', charCode, unoKeyCode);
if (charCode > 0xFFFF) {
// We must handle non-BMP code points as two separate key events
// because the sad VCL KeyEvent only takes a 16-bit "characters".
var surrogatePair = this._getSurrogatePair(charCode);
docLayer._postKeyboardEvent('input', surrogatePair[0], unoKeyCode);
docLayer._postKeyboardEvent('up', surrogatePair[0], unoKeyCode);
docLayer._postKeyboardEvent('input', surrogatePair[1], unoKeyCode);
docLayer._postKeyboardEvent('up', surrogatePair[1], unoKeyCode);
}
else {
docLayer._postKeyboardEvent('input', charCode, unoKeyCode);
}
this._lastInput = unoKeyCode;
this._keyHandled = true;
}
else if (e.type === 'keyup') {
docLayer._postKeyboardEvent('up', charCode, unoKeyCode);
if (charCode <= 0xFFFF) {
// For non-BMP characters we generated both 'input' and 'up' events
// above already.
docLayer._postKeyboardEvent('up', charCode, unoKeyCode);
}
this._lastInput = null;
this._keyHandled = true;
}
