OLD | NEW |
---|---|
(Empty) | |
1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
tapted
2015/08/26 03:04:49
Maybe we can even trick `git cl upload` to diff th
jackhou1
2015/08/26 06:24:43
Done.
| |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #import "ui/base/cocoa/command_dispatcher.h" | |
6 | |
7 #include "base/logging.h" | |
8 | |
9 namespace { | |
10 | |
11 // Duplicate the given key event, but changing the associated window. | |
12 NSEvent* KeyEventForWindow(NSWindow* window, NSEvent* event) { | |
13 NSEventType event_type = [event type]; | |
14 | |
15 // Convert the event's location from the original window's coordinates into | |
16 // our own. | |
17 NSPoint location = [event locationInWindow]; | |
18 location = [[event window] convertBaseToScreen:location]; | |
19 location = [window convertScreenToBase:location]; | |
20 | |
21 // Various things *only* apply to key down/up. | |
22 bool is_a_repeat = false; | |
23 NSString* characters = nil; | |
24 NSString* charactors_ignoring_modifiers = nil; | |
25 if (event_type == NSKeyDown || event_type == NSKeyUp) { | |
26 is_a_repeat = [event isARepeat]; | |
27 characters = [event characters]; | |
28 charactors_ignoring_modifiers = [event charactersIgnoringModifiers]; | |
29 } | |
30 | |
31 // This synthesis may be slightly imperfect: we provide nil for the context, | |
32 // since I (viettrungluu) am sceptical that putting in the original context | |
33 // (if one is given) is valid. | |
34 return [NSEvent keyEventWithType:event_type | |
35 location:location | |
36 modifierFlags:[event modifierFlags] | |
37 timestamp:[event timestamp] | |
38 windowNumber:[window windowNumber] | |
39 context:nil | |
40 characters:characters | |
41 charactersIgnoringModifiers:charactors_ignoring_modifiers | |
42 isARepeat:is_a_repeat | |
43 keyCode:[event keyCode]]; | |
44 } | |
45 | |
46 } // namespace | |
47 | |
48 @implementation CommandDispatcherImpl | |
49 | |
50 - (id)initWithOwner:(NSWindow<CommandDispatcher>*)owner { | |
51 if ((self = [super init])) { | |
52 owner_ = owner; | |
53 } | |
54 return self; | |
55 } | |
56 | |
57 - (void)setDelegate:(id<CommandDispatcherDelegate>)delegate { | |
58 delegate_.reset([delegate retain]); | |
59 } | |
60 | |
61 - (BOOL)performKeyEquivalent:(NSEvent*)event { | |
62 if ([delegate_ handledByExtensionCommand:event | |
63 isRedispatch:redispatchingEvent_]) | |
64 return YES; | |
65 | |
66 if (redispatchingEvent_) | |
67 return NO; | |
68 | |
69 // Give the web site a chance to handle the event. If it doesn't want to | |
tapted
2015/08/26 03:04:49
the web site -> a CommandDispatcherTarget (e.g. a
jackhou1
2015/08/26 06:24:43
Done.
| |
70 // handle it, it will call us back with one of the |handle*| methods above. | |
71 NSResponder* r = [owner_ firstResponder]; | |
72 if ([r conformsToProtocol:@protocol(CommandDispatcherTarget)]) | |
73 return [r performKeyEquivalent:event]; | |
74 | |
75 if ([delegate_ prePerformKeyEquivalent:event window:owner_]) | |
76 return YES; | |
77 | |
78 if ([owner_ defaultPerformKeyEquivalent:event]) | |
79 return YES; | |
80 | |
81 return [delegate_ postPerformKeyEquivalent:event window:owner_]; | |
82 } | |
83 | |
84 - (BOOL)redispatchKeyEvent:(NSEvent*)event { | |
85 DCHECK(event); | |
86 NSEventType eventType = [event type]; | |
87 if (eventType != NSKeyDown && eventType != NSKeyUp && | |
88 eventType != NSFlagsChanged) { | |
89 NOTREACHED(); | |
90 return YES; // Pretend it's been handled in an effort to limit damage. | |
91 } | |
92 | |
93 // Ordinarily, the event's window should be this window. However, when | |
tapted
2015/08/26 03:04:49
this window -> |owner_|
jackhou1
2015/08/26 06:24:43
Done.
| |
94 // switching between normal and fullscreen mode, we switch out the window, and | |
95 // the event's window might be the previous window (or even an earlier one if | |
96 // the renderer is running slowly and several mode switches occur). In this | |
97 // rare case, we synthesize a new key event so that its associate window | |
98 // (number) is our own. | |
tapted
2015/08/26 03:04:49
our own -> our |owner_|'s
jackhou1
2015/08/26 06:24:43
Done.
| |
99 if ([event window] != owner_) | |
100 event = KeyEventForWindow(owner_, event); | |
101 | |
102 // Redispatch the event. | |
103 eventHandled_ = YES; | |
104 redispatchingEvent_ = YES; | |
105 [NSApp sendEvent:event]; | |
106 redispatchingEvent_ = NO; | |
107 | |
108 // If the event was not handled by [NSApp sendEvent:], the sendEvent: | |
109 // method below will be called, and because |redispatchingEvent_| is YES, | |
110 // |eventHandled_| will be set to NO. | |
111 return eventHandled_; | |
112 } | |
113 | |
114 - (BOOL)preSendEvent:(NSEvent*)event { | |
115 if (redispatchingEvent_) { | |
116 // If we get here, then the event was not handled by NSApplication. | |
117 eventHandled_ = NO; | |
118 // Return YES to stop native -sendEvent handling. | |
119 return YES; | |
120 } | |
121 | |
122 return NO; | |
123 } | |
124 | |
125 @end | |
OLD | NEW |