我在使用angular 1.2.3时,遇到了检测shift+右箭头+p的问题。
当只有右箭头+p时,没有问题,但是一旦加入了shift键,就会出现问题。
问题在于如何检测同时按下三个键:SHIFT + RIGHT ARROW + P
这里提供一个可行的示例:plunker
var app = angular.module('keyboardDemo', []);
app.controller('MainCtrl', function($scope, $timeout) {
/**
* 39 (right arrow)
* 80 (p)
*/
var map = {39: false, 80: false};
$scope.onKeyUp = function(event){
if (map[39] && map[80]) {
$scope.data.message1 = "P + RIGHT pressed!";
$timeout(function(){
$scope.data.message1 = '';
}, 1000);
}
if (event.shiftKey && map[39] && map[80]) {
$scope.data.message2 = "SHIFT + P + RIGHT pressed!";
$timeout(function(){
$scope.data.message2 = '';
}, 1000);
}
var keyCode = getKeyboardEventCode(event);
if (keyCode in map) {
clearKeyCode(keyCode);
}
};
$scope.onKeyDown = function(event){
var keyCode = getKeyboardEventCode(event);
if (keyCode in map) {
map[keyCode] = true;
}
}
var getKeyboardEventCode = function (event) {
return parseInt((window.event ? event.keyCode : event.which));
};
function clearKeyCode(code){
map[code] = false;
}
$scope.data = {
'message1': '',
'message2': ''
};
});