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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "ui/wm/core/nested_accelerator_dispatcher.h" | |
| 6 | |
| 7 #include "base/memory/scoped_ptr.h" | |
| 8 #include "base/run_loop.h" | |
| 9 #include "ui/events/event.h" | |
| 10 #include "ui/events/platform/platform_event_dispatcher.h" | |
| 11 #include "ui/events/platform/platform_event_source.h" | |
| 12 #include "ui/events/platform/scoped_event_dispatcher.h" | |
| 13 #include "ui/wm/core/nested_accelerator_delegate.h" | |
| 14 | |
| 15 #if defined(USE_X11) | |
| 16 #include <X11/Xlib.h> | |
| 17 #endif | |
| 18 | |
| 19 namespace wm { | |
| 20 | |
| 21 namespace { | |
| 22 | |
| 23 #if defined(USE_OZONE) | |
| 24 bool IsKeyEvent(const base::NativeEvent& native_event) { | |
| 25 const ui::KeyEvent* event = static_cast<const ui::KeyEvent*>(native_event); | |
| 26 return event->IsKeyEvent(); | |
| 27 } | |
| 28 #elif defined(USE_X11) | |
| 29 bool IsKeyEvent(const XEvent* xev) { | |
| 30 return xev->type == KeyPress || xev->type == KeyRelease; | |
| 31 } | |
| 32 #else | |
| 33 #error Unknown build platform: you should have either use_ozone or use_x11. | |
| 34 #endif | |
| 35 | |
| 36 scoped_ptr<ui::ScopedEventDispatcher> OverrideDispatcher( | |
| 37 ui::PlatformEventDispatcher* dispatcher) { | |
| 38 ui::PlatformEventSource* source = ui::PlatformEventSource::GetInstance(); | |
| 39 return source ? source->OverrideDispatcher(dispatcher) | |
| 40 : scoped_ptr<ui::ScopedEventDispatcher>(); | |
| 41 } | |
| 42 | |
| 43 } // namespace | |
| 44 | |
| 45 class NestedAcceleratorDispatcherLinux : public NestedAcceleratorDispatcher, | |
| 46 public ui::PlatformEventDispatcher { | |
| 47 public: | |
| 48 explicit NestedAcceleratorDispatcherLinux(NestedAcceleratorDelegate* delegate) | |
| 49 : NestedAcceleratorDispatcher(delegate), | |
| 50 restore_dispatcher_(OverrideDispatcher(this)) {} | |
| 51 | |
| 52 virtual ~NestedAcceleratorDispatcherLinux() {} | |
| 53 | |
| 54 private: | |
| 55 // AcceleratorDispatcher: | |
| 56 virtual scoped_ptr<base::RunLoop> CreateRunLoop() OVERRIDE { | |
| 57 return scoped_ptr<base::RunLoop>(new base::RunLoop()); | |
| 58 } | |
| 59 | |
| 60 // ui::PlatformEventDispatcher: | |
| 61 virtual bool CanDispatchEvent(const ui::PlatformEvent& event) OVERRIDE { | |
| 62 return true; | |
| 63 } | |
| 64 | |
| 65 virtual uint32_t DispatchEvent(const ui::PlatformEvent& event) OVERRIDE { | |
| 66 if (IsKeyEvent(event)) { | |
| 67 ui::KeyEvent key_event(event, false); | |
| 68 if (!delegate_->ShouldProcessEventNow(key_event)) { | |
| 69 #if defined(USE_X11) | |
| 70 XPutBackEvent(event->xany.display, event); | |
| 71 #else | |
| 72 NOTIMPLEMENTED(); | |
| 73 #endif | |
| 74 return ui::POST_DISPATCH_NONE; | |
| 75 } | |
| 76 | |
| 77 if (delegate_->ProcessEvent(key_event)) | |
| 78 return ui::POST_DISPATCH_NONE; | |
| 79 } | |
| 80 ui::PlatformEventDispatcher* prev = *restore_dispatcher_; | |
| 81 | |
| 82 return prev ? prev->DispatchEvent(event) | |
| 83 : ui::POST_DISPATCH_PERFORM_DEFAULT; | |
| 84 } | |
| 85 | |
| 86 scoped_ptr<ui::ScopedEventDispatcher> restore_dispatcher_; | |
| 87 | |
| 88 DISALLOW_COPY_AND_ASSIGN(NestedAcceleratorDispatcherLinux); | |
| 89 }; | |
| 90 | |
| 91 scoped_ptr<NestedAcceleratorDispatcher> NestedAcceleratorDispatcher::Create( | |
| 92 NestedAcceleratorDelegate* delegate, | |
| 93 base::MessagePumpDispatcher* nested_dispatcher) { | |
| 94 return scoped_ptr<NestedAcceleratorDispatcher>( | |
| 95 new NestedAcceleratorDispatcherLinux(delegate)); | |
| 96 } | |
| 97 | |
| 98 } // namespace wm | |
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Chromium Code Reviews
Issue 301743002:
Revert of Refactor and move ash independent nested accelerator code to ui/wm/core (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src