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GUAC-810: Send "synthetic" key events for non-physical input options. Allow components to prevent production/handling of guacKeyup/guacKeydown via guacBeforeKeyup/guacBeforeKeydown.

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This commit is contained in:
Michael Jumper
2014-12-20 14:05:54 -08:00
parent b33333da3f
commit eaed778f91
5 changed files with 85 additions and 11 deletions
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52
guacamole/src/main/webapp/app/textInput/directives/guacTextInput.js
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@@ -50,6 +50,42 @@ angular.module('textInput').directive('guacTextInput', [function guacTextInput()
*/
var TEXT_INPUT_PADDING_CODEPOINT = 0x200B;
/**
* Keys which should be allowed through to the client when in text
* input mode, providing corresponding key events are received.
* Keys in this set will be allowed through to the server.
*
* @type Object.<Number, Boolean>
*/
var ALLOWED_KEYS = {
0xFF08: true, /* Backspace */
0xFF09: true, /* Tab */
0xFF0D: true, /* Enter */
0xFF1B: true, /* Escape */
0xFF50: true, /* Home */
0xFF51: true, /* Left */
0xFF52: true, /* Up */
0xFF53: true, /* Right */
0xFF54: true, /* Down */
0xFF57: true, /* End */
0xFF64: true, /* Insert */
0xFFBE: true, /* F1 */
0xFFBF: true, /* F2 */
0xFFC0: true, /* F3 */
0xFFC1: true, /* F4 */
0xFFC2: true, /* F5 */
0xFFC3: true, /* F6 */
0xFFC4: true, /* F7 */
0xFFC5: true, /* F8 */
0xFFC6: true, /* F9 */
0xFFC7: true, /* F10 */
0xFFC8: true, /* F11 */
0xFFC9: true, /* F12 */
0xFFE1: true, /* Left shift */
0xFFE2: true, /* Right shift */
0xFFFF: true /* Delete */
};
/**
* Recently-sent text, ordered from oldest to most recent.
*
@@ -151,8 +187,8 @@ angular.module('textInput').directive('guacTextInput', [function guacTextInput()
* @param {Number} keysym The keysym of the key to send.
*/
var sendKeysym = function sendKeysym(keysym) {
$rootScope.$broadcast('guacKeydown', keysym);
$rootScope.$broadcast('guacKeyup', keysym);
$rootScope.$broadcast('guacSyntheticKeydown', keysym);
$rootScope.$broadcast('guacSyntheticKeyup', keysym);
};
/**
@@ -283,6 +319,18 @@ angular.module('textInput').directive('guacTextInput', [function guacTextInput()
e.preventDefault();
}, false);
// If the text input UI has focus, prevent keydown events
$scope.$on('guacBeforeKeydown', function filterKeydown(event, keysym) {
if (hasFocus && !ALLOWED_KEYS[keysym])
event.preventDefault();
});
// If the text input UI has focus, prevent keyup events
$scope.$on('guacBeforeKeyup', function filterKeyup(event, keysym) {
if (hasFocus && !ALLOWED_KEYS[keysym])
event.preventDefault();
});
}]
};