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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 "components/view_manager/native_viewport/platform_viewport.h" | |
| 6 | |
| 7 #include "base/command_line.h" | |
| 8 #include "base/message_loop/message_loop.h" | |
| 9 #include "components/view_manager/public/interfaces/view_manager.mojom.h" | |
| 10 #include "mojo/converters/geometry/geometry_type_converters.h" | |
| 11 #include "mojo/converters/input_events/input_events_type_converters.h" | |
| 12 #include "mojo/converters/input_events/mojo_extended_key_event_data.h" | |
| 13 #include "ui/events/event.h" | |
| 14 #include "ui/events/event_utils.h" | |
| 15 #include "ui/events/platform/platform_event_dispatcher.h" | |
| 16 #include "ui/gfx/geometry/rect.h" | |
| 17 #include "ui/platform_window/platform_window.h" | |
| 18 #include "ui/platform_window/platform_window_delegate.h" | |
| 19 #include "ui/platform_window/stub/stub_window.h" | |
| 20 | |
| 21 #if defined(OS_WIN) | |
| 22 #include "ui/platform_window/win/win_window.h" | |
| 23 #elif defined(USE_X11) | |
| 24 #include "ui/platform_window/x11/x11_window.h" | |
| 25 #elif defined(OS_ANDROID) | |
| 26 #include "ui/platform_window/android/platform_window_android.h" | |
| 27 #endif | |
| 28 | |
| 29 namespace native_viewport { | |
| 30 namespace { | |
| 31 | |
| 32 float ConvertUIWheelValueToMojoValue(int offset) { | |
| 33 // Mojo's event type takes a value between -1 and 1. Normalize by allowing | |
| 34 // up to 20 of ui's offset. This is a bit arbitrary. | |
| 35 return std::max( | |
| 36 -1.0f, std::min(1.0f, static_cast<float>(offset) / | |
| 37 (20 * static_cast<float>( | |
| 38 ui::MouseWheelEvent::kWheelDelta)))); | |
| 39 } | |
| 40 } // namespace | |
| 41 | |
| 42 class PlatformViewportCommon : public PlatformViewport, | |
| 43 public ui::PlatformWindowDelegate { | |
| 44 public: | |
| 45 PlatformViewportCommon(Delegate* delegate, bool headless) | |
| 46 : delegate_(delegate), headless_(headless) {} | |
| 47 | |
| 48 ~PlatformViewportCommon() override { | |
| 49 // Destroy the platform-window while |this| is still alive. | |
| 50 platform_window_.reset(); | |
| 51 } | |
| 52 | |
| 53 private: | |
| 54 // Overridden from PlatformViewport: | |
| 55 void Init(const gfx::Rect& bounds) override { | |
| 56 CHECK(!platform_window_); | |
| 57 | |
| 58 metrics_ = mojo::ViewportMetrics::New(); | |
| 59 metrics_->size_in_pixels = mojo::Size::From(bounds.size()); | |
| 60 | |
| 61 if (headless_) { | |
| 62 platform_window_.reset(new ui::StubWindow(this)); | |
| 63 } else { | |
| 64 #if defined(OS_WIN) | |
| 65 platform_window_.reset(new ui::WinWindow(this, bounds)); | |
| 66 #elif defined(USE_X11) | |
| 67 platform_window_.reset(new ui::X11Window(this)); | |
| 68 #elif defined(OS_ANDROID) | |
| 69 platform_window_.reset(new ui::PlatformWindowAndroid(this)); | |
| 70 #endif | |
| 71 } | |
| 72 platform_window_->SetBounds(bounds); | |
| 73 } | |
| 74 | |
| 75 void Show() override { platform_window_->Show(); } | |
| 76 | |
| 77 void Hide() override { platform_window_->Hide(); } | |
| 78 | |
| 79 void Close() override { platform_window_->Close(); } | |
| 80 | |
| 81 gfx::Size GetSize() override { | |
| 82 return metrics_->size_in_pixels.To<gfx::Size>(); | |
| 83 } | |
| 84 | |
| 85 void SetBounds(const gfx::Rect& bounds) override { | |
| 86 platform_window_->SetBounds(bounds); | |
| 87 } | |
| 88 | |
| 89 // ui::PlatformWindowDelegate: | |
| 90 void OnBoundsChanged(const gfx::Rect& new_bounds) override { | |
| 91 delegate_->OnMetricsChanged(new_bounds.size(), | |
| 92 metrics_->device_pixel_ratio); | |
| 93 } | |
| 94 | |
| 95 void OnDamageRect(const gfx::Rect& damaged_region) override {} | |
| 96 | |
| 97 void DispatchEvent(ui::Event* event) override { | |
| 98 mojo::EventPtr mojo_event(mojo::Event::From(*event)); | |
| 99 if (event->IsMouseWheelEvent()) { | |
| 100 // Mojo's event type has a different meaning for wheel events. Convert | |
| 101 // between the two. | |
| 102 ui::MouseWheelEvent* wheel_event = | |
| 103 static_cast<ui::MouseWheelEvent*>(event); | |
| 104 DCHECK(mojo_event->pointer_data); | |
| 105 mojo_event->pointer_data->horizontal_wheel = | |
| 106 ConvertUIWheelValueToMojoValue(wheel_event->x_offset()); | |
| 107 mojo_event->pointer_data->horizontal_wheel = | |
| 108 ConvertUIWheelValueToMojoValue(wheel_event->y_offset()); | |
| 109 } | |
| 110 delegate_->OnEvent(mojo_event.Pass()); | |
| 111 | |
| 112 switch (event->type()) { | |
| 113 case ui::ET_MOUSE_PRESSED: | |
| 114 case ui::ET_TOUCH_PRESSED: | |
| 115 platform_window_->SetCapture(); | |
| 116 break; | |
| 117 case ui::ET_MOUSE_RELEASED: | |
| 118 case ui::ET_TOUCH_RELEASED: | |
| 119 platform_window_->ReleaseCapture(); | |
| 120 break; | |
| 121 default: | |
| 122 break; | |
| 123 } | |
| 124 | |
| 125 #if defined(USE_X11) | |
| 126 // We want to emulate the WM_CHAR generation behaviour of Windows. | |
| 127 // | |
| 128 // On Linux, we've previously inserted characters by having | |
| 129 // InputMethodAuraLinux take all key down events and send a character event | |
| 130 // to the TextInputClient. This causes a mismatch in code that has to be | |
| 131 // shared between Windows and Linux, including blink code. Now that we're | |
| 132 // trying to have one way of doing things, we need to standardize on and | |
| 133 // emulate Windows character events. | |
| 134 // | |
| 135 // This is equivalent to what we're doing in the current Linux port, but | |
| 136 // done once instead of done multiple times in different places. | |
| 137 if (event->type() == ui::ET_KEY_PRESSED) { | |
| 138 ui::KeyEvent* key_press_event = static_cast<ui::KeyEvent*>(event); | |
| 139 ui::KeyEvent char_event(key_press_event->GetCharacter(), | |
| 140 key_press_event->key_code(), | |
| 141 key_press_event->flags()); | |
| 142 | |
| 143 DCHECK_EQ(key_press_event->GetCharacter(), char_event.GetCharacter()); | |
| 144 DCHECK_EQ(key_press_event->key_code(), char_event.key_code()); | |
| 145 DCHECK_EQ(key_press_event->flags(), char_event.flags()); | |
| 146 | |
| 147 char_event.SetExtendedKeyEventData( | |
| 148 make_scoped_ptr(new mojo::MojoExtendedKeyEventData( | |
| 149 key_press_event->GetLocatedWindowsKeyboardCode(), | |
| 150 key_press_event->GetText(), | |
| 151 key_press_event->GetUnmodifiedText()))); | |
| 152 char_event.set_platform_keycode(key_press_event->platform_keycode()); | |
| 153 | |
| 154 delegate_->OnEvent(mojo::Event::From(char_event)); | |
| 155 } | |
| 156 #endif | |
| 157 } | |
| 158 | |
| 159 void OnCloseRequest() override { platform_window_->Close(); } | |
| 160 | |
| 161 void OnClosed() override { delegate_->OnDestroyed(); } | |
| 162 | |
| 163 void OnWindowStateChanged(ui::PlatformWindowState state) override {} | |
| 164 | |
| 165 void OnLostCapture() override {} | |
| 166 | |
| 167 void OnAcceleratedWidgetAvailable(gfx::AcceleratedWidget widget, | |
| 168 float device_pixel_ratio) override { | |
| 169 metrics_->device_pixel_ratio = device_pixel_ratio; | |
| 170 delegate_->OnAcceleratedWidgetAvailable(widget, | |
| 171 metrics_->device_pixel_ratio); | |
| 172 } | |
| 173 | |
| 174 void OnActivationChanged(bool active) override {} | |
| 175 | |
| 176 scoped_ptr<ui::PlatformWindow> platform_window_; | |
| 177 Delegate* delegate_; | |
| 178 bool headless_; | |
| 179 mojo::ViewportMetricsPtr metrics_; | |
| 180 | |
| 181 DISALLOW_COPY_AND_ASSIGN(PlatformViewportCommon); | |
| 182 }; | |
| 183 | |
| 184 // static | |
| 185 scoped_ptr<PlatformViewport> PlatformViewport::Create(Delegate* delegate, | |
| 186 bool headless) { | |
| 187 return make_scoped_ptr(new PlatformViewportCommon(delegate, headless)); | |
| 188 } | |
| 189 | |
| 190 } // namespace native_viewport | |
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Chromium Code Reviews
Issue 1216113004:
view_manager: Remove PlatformViewport abstraction. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master