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Improve character keysym lookup

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Use the more modern 'key' field, and remove some legacy fallbacks
that are no longer required. This also removes the "stall" mechanism
as it is not needed with current browsers.
This commit is contained in:
Pierre Ossman
2017-01-25 11:29:08 +01:00
parent 80cb8ffddd
commit bfa1b237b9
4 changed files with 53 additions and 286 deletions
Download Patch File Download Diff File Expand all files Collapse all files
tests/test.keyboard.js
+34 -185
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@@ -12,26 +12,26 @@ describe('Key Event Pipeline Stages', function() {
KeyboardUtil.KeyEventDecoder(KeyboardUtil.ModifierSync(), function(evt) {
expect(evt).to.be.an.object;
done();
}).keydown({code: 'KeyA', keyCode: 0x41});
}).keydown({code: 'KeyA', key: 'a'});
});
it('should pass the right keysym through', function(done) {
KeyboardUtil.KeyEventDecoder(KeyboardUtil.ModifierSync(), function(evt) {
expect(evt.keysym).to.be.deep.equal(0x61);
done();
}).keypress({code: 'KeyA', keyCode: 0x41});
}).keypress({code: 'KeyA', key: 'a'});
});
it('should pass the right keyid through', function(done) {
KeyboardUtil.KeyEventDecoder(KeyboardUtil.ModifierSync(), function(evt) {
expect(evt).to.have.property('code', 'KeyA');
done();
}).keydown({code: 'KeyA', keyCode: 0x41});
}).keydown({code: 'KeyA', key: 'a'});
});
it('should not sync modifiers on a keypress', function() {
// Firefox provides unreliable modifier state on keypress events
var count = 0;
KeyboardUtil.KeyEventDecoder(KeyboardUtil.ModifierSync(), function(evt) {
++count;
}).keypress({code: 'KeyA', keyCode: 0x41, ctrlKey: true});
}).keypress({code: 'KeyA', key: 'a', ctrlKey: true});
expect(count).to.be.equal(1);
});
it('should sync modifiers if necessary', function(done) {
@@ -47,61 +47,36 @@ describe('Key Event Pipeline Stages', function() {
done();
break;
}
}).keydown({code: 'KeyA', keyCode: 0x41, ctrlKey: true});
}).keydown({code: 'KeyA', key: 'a', ctrlKey: true});
});
it('should forward keydown events with the right type', function(done) {
KeyboardUtil.KeyEventDecoder(KeyboardUtil.ModifierSync(), function(evt) {
expect(evt).to.be.deep.equal({code: 'KeyA', type: 'keydown'});
done();
}).keydown({code: 'KeyA', keyCode: 0x41});
}).keydown({code: 'KeyA', key: 'a'});
});
it('should forward keyup events with the right type', function(done) {
KeyboardUtil.KeyEventDecoder(KeyboardUtil.ModifierSync(), function(evt) {
expect(evt).to.be.deep.equal({code: 'KeyA', keysym: 0x61, type: 'keyup'});
done();
}).keyup({code: 'KeyA', keyCode: 0x41});
}).keyup({code: 'KeyA', key: 'a'});
});
it('should forward keypress events with the right type', function(done) {
KeyboardUtil.KeyEventDecoder(KeyboardUtil.ModifierSync(), function(evt) {
expect(evt).to.be.deep.equal({code: 'KeyA', keysym: 0x61, type: 'keypress'});
done();
}).keypress({code: 'KeyA', keyCode: 0x41});
});
it('should generate stalls if a char modifier is down while a key is pressed', function(done) {
var count = 0;
KeyboardUtil.KeyEventDecoder(KeyboardUtil.ModifierSync([0xfe03]), function(evt) {
switch (count) {
case 0: // fake altgr
expect(evt).to.be.deep.equal({keysym: 0xfe03, type: 'keydown'});
++count;
break;
case 1: // stall before processing the 'a' keydown
expect(evt).to.be.deep.equal({type: 'stall'});
++count;
break;
case 2: // 'a'
expect(evt).to.be.deep.equal({
type: 'keydown',
code: 'KeyA',
keysym: 0x61
});
done();
break;
}
}).keydown({code: 'KeyA', keyCode: 0x41, altGraphKey: true});
}).keypress({code: 'KeyA', key: 'a'});
});
describe('suppress the right events at the right time', function() {
it('should suppress anything while a shortcut modifier is down', function() {
var obj = KeyboardUtil.KeyEventDecoder(KeyboardUtil.ModifierSync(), function(evt) {});
obj.keydown({keyCode: 0x11}); // press ctrl
expect(obj.keydown({keyCode: 'A'.charCodeAt()})).to.be.true;
expect(obj.keydown({key: 'A'})).to.be.true;
expect(obj.keydown({keyCode: ' '.charCodeAt()})).to.be.true;
expect(obj.keydown({keyCode: '1'.charCodeAt()})).to.be.true;
expect(obj.keydown({keyCode: 0x3c})).to.be.true; // < key on DK Windows
expect(obj.keydown({keyCode: 0xde})).to.be.true; // Ø key on DK
expect(obj.keydown({key: '1'})).to.be.true;
expect(obj.keydown({key: '<'})).to.be.true;
expect(obj.keydown({key: 'ø'})).to.be.true;
});
it('should suppress non-character keys', function() {
var obj = KeyboardUtil.KeyEventDecoder(KeyboardUtil.ModifierSync(), function(evt) {});
@@ -127,48 +102,35 @@ describe('Key Event Pipeline Stages', function() {
it('should not suppress character keys', function() {
var obj = KeyboardUtil.KeyEventDecoder(KeyboardUtil.ModifierSync(), function(evt) {});
expect(obj.keydown({keyCode: 'A'.charCodeAt()})).to.be.false;
expect(obj.keydown({key: 'A'})).to.be.false;
expect(obj.keydown({keyCode: ' '.charCodeAt()})).to.be.false;
expect(obj.keydown({keyCode: '1'.charCodeAt()})).to.be.false;
expect(obj.keydown({keyCode: 0x3c})).to.be.false; // < key on DK Windows
expect(obj.keydown({keyCode: 0xde})).to.be.false; // Ø key on DK
expect(obj.keydown({key: '1'})).to.be.false;
expect(obj.keydown({key: '<'})).to.be.false; // < key on DK Windows
expect(obj.keydown({key: 'ø'})).to.be.false; // Ø key on DK
});
it('should not suppress if a char modifier is down', function() {
var obj = KeyboardUtil.KeyEventDecoder(KeyboardUtil.ModifierSync([0xfe03]), function(evt) {});
obj.keydown({keyCode: 0xe1}); // press altgr
expect(obj.keydown({keyCode: 'A'.charCodeAt()})).to.be.false;
expect(obj.keydown({key: 'A'})).to.be.false;
expect(obj.keydown({keyCode: ' '.charCodeAt()})).to.be.false;
expect(obj.keydown({keyCode: '1'.charCodeAt()})).to.be.false;
expect(obj.keydown({keyCode: 0x3c})).to.be.false; // < key on DK Windows
expect(obj.keydown({keyCode: 0xde})).to.be.false; // Ø key on DK
expect(obj.keydown({key: '1'})).to.be.false;
expect(obj.keydown({key: '<'})).to.be.false;
expect(obj.keydown({key: 'ø'})).to.be.false;
});
});
describe('Keypress and keyup events', function() {
it('should always suppress event propagation', function() {
var obj = KeyboardUtil.KeyEventDecoder(KeyboardUtil.ModifierSync(), function(evt) {});
expect(obj.keypress({keyCode: 'A'.charCodeAt()})).to.be.true;
expect(obj.keypress({keyCode: 0x3c})).to.be.true; // < key on DK Windows
expect(obj.keypress({key: 'A'})).to.be.true;
expect(obj.keypress({key: '<'})).to.be.true;
expect(obj.keypress({keyCode: 0x11})).to.be.true;
expect(obj.keyup({keyCode: 'A'.charCodeAt()})).to.be.true;
expect(obj.keyup({keyCode: 0x3c})).to.be.true; // < key on DK Windows
expect(obj.keyup({key: 'A'})).to.be.true;
expect(obj.keyup({key: '<'})).to.be.true;
expect(obj.keyup({keyCode: 0x11})).to.be.true;
});
it('should never generate stalls', function() {
var obj = KeyboardUtil.KeyEventDecoder(KeyboardUtil.ModifierSync(), function(evt) {
expect(evt.type).to.not.be.equal('stall');
});
obj.keypress({keyCode: 'A'.charCodeAt()});
obj.keypress({keyCode: 0x3c});
obj.keypress({keyCode: 0x11});
obj.keyup({keyCode: 'A'.charCodeAt()});
obj.keyup({keyCode: 0x3c});
obj.keyup({keyCode: 0x11});
});
});
describe('mark events if a char modifier is down', function() {
it('should not mark modifiers on a keydown event', function() {
@@ -184,7 +146,7 @@ describe('Key Event Pipeline Stages', function() {
});
obj.keydown({keyCode: 0xe1}); // press altgr
obj.keydown({code: 'KeyA', keyCode: 0x41});
obj.keydown({code: 'KeyA', key: 'a'});
});
it('should indicate on events if a single-key char modifier is down', function(done) {
@@ -206,7 +168,7 @@ describe('Key Event Pipeline Stages', function() {
});
obj.keydown({keyCode: 0xe1}); // press altgr
obj.keypress({code: 'KeyA', keyCode: 0x41});
obj.keypress({code: 'KeyA', key: 'a'});
});
it('should indicate on events if a multi-key char modifier is down', function(done) {
var times_called = 0;
@@ -230,7 +192,7 @@ describe('Key Event Pipeline Stages', function() {
obj.keydown({keyCode: 0x11}); // press ctrl
obj.keydown({keyCode: 0x12}); // press alt
obj.keypress({code: 'KeyA', keyCode: 0x41});
obj.keypress({code: 'KeyA', key: 'a'});
});
it('should not consider a char modifier to be down on the modifier key itself', function() {
var obj = KeyboardUtil.KeyEventDecoder(KeyboardUtil.ModifierSync([0xfe03]), function(evt) {
@@ -245,7 +207,7 @@ describe('Key Event Pipeline Stages', function() {
it('should remove keysym from keydown if a char key and no modifier', function() {
KeyboardUtil.KeyEventDecoder(KeyboardUtil.ModifierSync(), function(evt) {
expect(evt).to.be.deep.equal({code: 'KeyA', type: 'keydown'});
}).keydown({code: 'KeyA', keyCode: 0x41});
}).keydown({code: 'KeyA', key: 'a'});
});
it('should not remove keysym from keydown if a shortcut modifier is down', function() {
var times_called = 0;
@@ -255,19 +217,19 @@ describe('Key Event Pipeline Stages', function() {
expect(evt).to.be.deep.equal({code: 'KeyA', keysym: 0x61, type: 'keydown'});
break;
}
}).keydown({code: 'KeyA', keyCode: 0x41, ctrlKey: true});
}).keydown({code: 'KeyA', key: 'a', ctrlKey: true});
expect(times_called).to.be.equal(2);
});
it('should not remove keysym from keydown if a char modifier is down', function() {
var times_called = 0;
KeyboardUtil.KeyEventDecoder(KeyboardUtil.ModifierSync([0xfe03]), function(evt) {
switch (times_called++) {
case 2:
case 1:
expect(evt).to.be.deep.equal({code: 'KeyA', keysym: 0x61, type: 'keydown'});
break;
}
}).keydown({code: 'KeyA', keyCode: 0x41, altGraphKey: true});
expect(times_called).to.be.equal(3);
}).keydown({code: 'KeyA', key: 'a', altGraphKey: true});
expect(times_called).to.be.equal(2);
});
it('should not remove keysym from keydown if key is noncharacter', function() {
KeyboardUtil.KeyEventDecoder(KeyboardUtil.ModifierSync(), function(evt) {
@@ -281,131 +243,18 @@ describe('Key Event Pipeline Stages', function() {
it('should never remove keysym from keypress', function() {
KeyboardUtil.KeyEventDecoder(KeyboardUtil.ModifierSync(), function(evt) {
expect(evt).to.be.deep.equal({code: 'KeyA', keysym: 0x61, type: 'keypress'});
}).keypress({code: 'KeyA', keyCode: 0x41});
}).keypress({code: 'KeyA', key: 'a'});
});
it('should never remove keysym from keyup', function() {
KeyboardUtil.KeyEventDecoder(KeyboardUtil.ModifierSync(), function(evt) {
expect(evt).to.be.deep.equal({code: 'KeyA', keysym: 0x61, type: 'keyup'});
}).keyup({code: 'KeyA', keyCode: 0x41});
}).keyup({code: 'KeyA', key: 'a'});
});
});
// on keypress, keyup(?), always set keysym
// on keydown, only do it if we don't expect a keypress: if noncharacter OR modifier is down
});
describe('Verify that char modifiers are active', function() {
it('should pass keydown events through if there is no stall', function(done) {
var obj = KeyboardUtil.VerifyCharModifier(function(evt){
expect(evt).to.deep.equal({type: 'keydown', code: 'KeyA', keysym: 0x41});
done();
})({type: 'keydown', code: 'KeyA', keysym: 0x41});
});
it('should pass keyup events through if there is no stall', function(done) {
var obj = KeyboardUtil.VerifyCharModifier(function(evt){
expect(evt).to.deep.equal({type: 'keyup', code: 'KeyA', keysym: 0x41});
done();
})({type: 'keyup', code: 'KeyA', keysym: 0x41});
});
it('should pass keypress events through if there is no stall', function(done) {
var obj = KeyboardUtil.VerifyCharModifier(function(evt){
expect(evt).to.deep.equal({type: 'keypress', code: 'KeyA', keysym: 0x41});
done();
})({type: 'keypress', code: 'KeyA', keysym: 0x41});
});
it('should not pass stall events through', function(done){
var obj = KeyboardUtil.VerifyCharModifier(function(evt){
// should only be called once, for the keydown
expect(evt).to.deep.equal({type: 'keydown', code: 'KeyA', keysym: 0x41});
done();
});
obj({type: 'stall'});
obj({type: 'keydown', code: 'KeyA', keysym: 0x41});
});
it('should merge keydown and keypress events if they come after a stall', function(done) {
var next_called = false;
var obj = KeyboardUtil.VerifyCharModifier(function(evt){
// should only be called once, for the keydown
expect(next_called).to.be.false;
next_called = true;
expect(evt).to.deep.equal({type: 'keydown', code: 'KeyA', keysym: 0x44});
done();
});
obj({type: 'stall'});
obj({type: 'keydown', code: 'KeyA', keysym: 0x42});
obj({type: 'keypress', code: 'KeyC', keysym: 0x44});
expect(next_called).to.be.false;
});
it('should preserve modifier attribute when merging if keysyms differ', function(done) {
var next_called = false;
var obj = KeyboardUtil.VerifyCharModifier(function(evt){
// should only be called once, for the keydown
expect(next_called).to.be.false;
next_called = true;
expect(evt).to.deep.equal({type: 'keydown', code: 'KeyA', keysym: 0x44, escape: [0xffe3]});
done();
});
obj({type: 'stall'});
obj({type: 'keydown', code: 'KeyA', keysym: 0x42});
obj({type: 'keypress', code: 'KeyC', keysym: 0x44, escape: [0xffe3]});
expect(next_called).to.be.false;
});
it('should not preserve modifier attribute when merging if keysyms are the same', function() {
var obj = KeyboardUtil.VerifyCharModifier(function(evt){
expect(evt).to.not.have.property('escape');
});
obj({type: 'stall'});
obj({type: 'keydown', code: 'KeyA', keysym: 0x42});
obj({type: 'keypress', code: 'KeyC', keysym: 0x42, escape: [0xffe3]});
});
it('should not merge keydown and keypress events if there is no stall', function(done) {
var times_called = 0;
var obj = KeyboardUtil.VerifyCharModifier(function(evt){
switch(times_called) {
case 0:
expect(evt).to.deep.equal({type: 'keydown', code: 'KeyA', keysym: 0x42});
break;
case 1:
expect(evt).to.deep.equal({type: 'keypress', code: 'KeyC', keysym: 0x44});
done();
break;
}
++times_called;
});
obj({type: 'keydown', code: 'KeyA', keysym: 0x42});
obj({type: 'keypress', code: 'KeyC', keysym: 0x44});
});
it('should not merge keydown and keypress events if separated by another event', function(done) {
var times_called = 0;
var obj = KeyboardUtil.VerifyCharModifier(function(evt){
switch(times_called) {
case 0:
expect(evt,1).to.deep.equal({type: 'keydown', code: 'KeyA', keysym: 0x42});
break;
case 1:
expect(evt,2).to.deep.equal({type: 'keyup', code: 'KeyC', keysym: 0x44});
break;
case 2:
expect(evt,3).to.deep.equal({type: 'keypress', code: 'KeyE', keysym: 0x46});
done();
break;
}
++times_called;
});
obj({type: 'stall'});
obj({type: 'keydown', code: 'KeyA', keysym: 0x42});
obj({type: 'keyup', code: 'KeyC', keysym: 0x44});
obj({type: 'keypress', code: 'KeyE', keysym: 0x46});
});
});
describe('Track Key State', function() {
it('should do nothing on keyup events if no keys are down', function() {
var obj = KeyboardUtil.TrackKeyState(function(evt) {