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| 1 // Copyright 2013 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 "mojo/services/native_viewport/native_viewport_impl.h" | |
| 6 | |
| 7 #include "base/message_loop/message_loop.h" | |
| 8 #include "base/time/time.h" | |
| 9 #include "mojo/services/gles2/gles2_impl.h" | |
| 10 #include "mojo/services/native_viewport/native_viewport.h" | |
| 11 #include "ui/events/event.h" | |
| 12 | |
| 13 namespace mojo { | |
| 14 namespace services { | |
| 15 namespace { | |
| 16 | |
| 17 bool IsRateLimitedEventType(ui::Event* event) { | |
| 18 return event->type() == ui::ET_MOUSE_MOVED || | |
| 19 event->type() == ui::ET_MOUSE_DRAGGED || | |
| 20 event->type() == ui::ET_TOUCH_MOVED; | |
| 21 } | |
| 22 | |
| 23 } | |
| 24 | |
| 25 //////////////////////////////////////////////////////////////////////////////// | |
| 26 // NativeViewportImpl, public: | |
| 27 | |
| 28 NativeViewportImpl::NativeViewportImpl(shell::Context* context, | |
| 29 ScopedMessagePipeHandle pipe) | |
| 30 : context_(context), | |
| 31 widget_(gfx::kNullAcceleratedWidget), | |
| 32 waiting_for_event_ack_(false), | |
| 33 pending_event_timestamp_(0), | |
| 34 client_(pipe.Pass()) { | |
| 35 client_.SetPeer(this); | |
| 36 } | |
| 37 | |
| 38 NativeViewportImpl::~NativeViewportImpl() { | |
| 39 } | |
| 40 | |
| 41 //////////////////////////////////////////////////////////////////////////////// | |
| 42 // NativeViewportImpl, NativeViewportStub overrides: | |
| 43 | |
| 44 void NativeViewportImpl::Open() { | |
| 45 native_viewport_ = services::NativeViewport::Create(context_, this); | |
| 46 native_viewport_->Init(); | |
| 47 client_->OnCreated(); | |
| 48 } | |
| 49 | |
| 50 void NativeViewportImpl::Close() { | |
| 51 DCHECK(native_viewport_); | |
| 52 native_viewport_->Close(); | |
| 53 } | |
| 54 | |
| 55 void NativeViewportImpl::CreateGLES2Context( | |
| 56 ScopedMessagePipeHandle gles2_client) { | |
| 57 gles2_.reset(new GLES2Impl(gles2_client.Pass())); | |
| 58 CreateGLES2ContextIfNeeded(); | |
| 59 } | |
| 60 | |
| 61 void NativeViewportImpl::AckEvent(const Event& event) { | |
| 62 DCHECK_EQ(event.time_stamp(), pending_event_timestamp_); | |
| 63 waiting_for_event_ack_ = false; | |
| 64 } | |
| 65 | |
| 66 //////////////////////////////////////////////////////////////////////////////// | |
| 67 // NativeViewportImpl, NativeViewportDelegate implementation: | |
| 68 | |
| 69 void NativeViewportImpl::OnResized(const gfx::Size& size) { | |
| 70 } | |
| 71 | |
| 72 void NativeViewportImpl::OnAcceleratedWidgetAvailable( | |
| 73 gfx::AcceleratedWidget widget) { | |
| 74 widget_ = widget; | |
| 75 CreateGLES2ContextIfNeeded(); | |
| 76 } | |
| 77 | |
| 78 bool NativeViewportImpl::OnEvent(ui::Event* ui_event) { | |
| 79 // Must not return early before updating capture. | |
| 80 switch (ui_event->type()) { | |
| 81 case ui::ET_MOUSE_PRESSED: | |
| 82 case ui::ET_TOUCH_PRESSED: | |
| 83 native_viewport_->SetCapture(); | |
| 84 break; | |
| 85 case ui::ET_MOUSE_RELEASED: | |
| 86 case ui::ET_TOUCH_RELEASED: | |
| 87 native_viewport_->ReleaseCapture(); | |
| 88 break; | |
| 89 default: | |
| 90 break; | |
| 91 } | |
| 92 | |
| 93 if (waiting_for_event_ack_ && IsRateLimitedEventType(ui_event)) | |
| 94 return false; | |
| 95 | |
| 96 AllocationScope scope; | |
| 97 | |
| 98 Event::Builder event; | |
| 99 event.set_action(ui_event->type()); | |
| 100 pending_event_timestamp_ = ui_event->time_stamp().ToInternalValue(); | |
| 101 event.set_time_stamp(pending_event_timestamp_); | |
| 102 | |
| 103 if (ui_event->IsMouseEvent() || ui_event->IsTouchEvent()) { | |
| 104 ui::LocatedEvent* located_event = static_cast<ui::LocatedEvent*>(ui_event); | |
| 105 Point::Builder location; | |
| 106 location.set_x(located_event->location().x()); | |
| 107 location.set_y(located_event->location().y()); | |
| 108 event.set_location(location.Finish()); | |
| 109 } | |
| 110 | |
| 111 if (ui_event->IsTouchEvent()) { | |
| 112 ui::TouchEvent* touch_event = static_cast<ui::TouchEvent*>(ui_event); | |
| 113 TouchData::Builder touch_data; | |
| 114 touch_data.set_pointer_id(touch_event->touch_id()); | |
| 115 event.set_touch_data(touch_data.Finish()); | |
| 116 } | |
| 117 | |
| 118 client_->OnEvent(event.Finish()); | |
| 119 waiting_for_event_ack_ = true; | |
| 120 return false; | |
| 121 } | |
| 122 | |
| 123 void NativeViewportImpl::OnDestroyed() { | |
| 124 // TODO(beng): | |
| 125 // Destroying |gles2_| on the shell thread here hits thread checker asserts. | |
| 126 // All code must stop touching the AcceleratedWidget at this point as it is | |
| 127 // dead after this call stack. jamesr said we probably should make our own | |
| 128 // GLSurface and simply tell it to stop touching the AcceleratedWidget | |
| 129 // via Destroy() but we have no good way of doing that right now given our | |
| 130 // current threading model so james' recommendation was just to wait until | |
| 131 // after we move the gl service out of process. | |
| 132 // gles2_.reset(); | |
| 133 client_->OnDestroyed(); | |
| 134 } | |
| 135 | |
| 136 //////////////////////////////////////////////////////////////////////////////// | |
| 137 // NativeViewportImpl, private: | |
| 138 | |
| 139 void NativeViewportImpl::CreateGLES2ContextIfNeeded() { | |
| 140 if (widget_ == gfx::kNullAcceleratedWidget || !gles2_) | |
| 141 return; | |
| 142 gles2_->CreateContext(widget_, native_viewport_->GetSize()); | |
| 143 } | |
| 144 | |
| 145 } // namespace services | |
| 146 } // namespace mojo | |
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