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Side by Side Diff: components/native_viewport/platform_viewport_x11.cc

Issue 1131523007: Move NativeViewport service into view_manager. This is a file move only. Further merging will happe… (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: . Created 5 years, 7 months ago
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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/native_viewport/platform_viewport.h"
6
7 #include "base/command_line.h"
8 #include "base/message_loop/message_loop.h"
9 #include "mojo/converters/geometry/geometry_type_converters.h"
10 #include "mojo/converters/input_events/input_events_type_converters.h"
11 #include "mojo/converters/input_events/mojo_extended_key_event_data.h"
12 #include "ui/events/event.h"
13 #include "ui/events/event_utils.h"
14 #include "ui/events/platform/platform_event_dispatcher.h"
15 #include "ui/gfx/geometry/rect.h"
16 #include "ui/platform_window/platform_window.h"
17 #include "ui/platform_window/platform_window_delegate.h"
18 #include "ui/platform_window/x11/x11_window.h"
19
20 namespace native_viewport {
21 namespace {
22
23 float ConvertUIWheelValueToMojoValue(int offset) {
24 // Mojo's event type takes a value between -1 and 1. Normalize by allowing
25 // up to 20 of ui's offset. This is a bit arbitrary.
26 return std::max(
27 -1.0f, std::min(1.0f, static_cast<float>(offset) /
28 (20 * static_cast<float>(
29 ui::MouseWheelEvent::kWheelDelta))));
30 }
31 } // namespace
32
33 class PlatformViewportX11 : public PlatformViewport,
34 public ui::PlatformWindowDelegate {
35 public:
36 explicit PlatformViewportX11(Delegate* delegate) : delegate_(delegate) {
37 }
38
39 ~PlatformViewportX11() override {
40 // Destroy the platform-window while |this| is still alive.
41 platform_window_.reset();
42 }
43
44 private:
45 // Overridden from PlatformViewport:
46 void Init(const gfx::Rect& bounds) override {
47 CHECK(!platform_window_);
48
49 metrics_ = mojo::ViewportMetrics::New();
50 // TODO(sky): make density real.
51 metrics_->device_pixel_ratio = 1.f;
52 metrics_->size = mojo::Size::From(bounds.size());
53
54 platform_window_.reset(new ui::X11Window(this));
55 platform_window_->SetBounds(bounds);
56 }
57
58 void Show() override { platform_window_->Show(); }
59
60 void Hide() override { platform_window_->Hide(); }
61
62 void Close() override { platform_window_->Close(); }
63
64 gfx::Size GetSize() override { return metrics_->size.To<gfx::Size>(); }
65
66 void SetBounds(const gfx::Rect& bounds) override {
67 platform_window_->SetBounds(bounds);
68 }
69
70 // ui::PlatformWindowDelegate:
71 void OnBoundsChanged(const gfx::Rect& new_bounds) override {
72 metrics_->size = mojo::Size::From(new_bounds.size());
73 delegate_->OnMetricsChanged(metrics_.Clone());
74 }
75
76 void OnDamageRect(const gfx::Rect& damaged_region) override {}
77
78 void DispatchEvent(ui::Event* event) override {
79 mojo::EventPtr mojo_event(mojo::Event::From(*event));
80 if (event->IsMouseWheelEvent()) {
81 // Mojo's event type has a different meaning for wheel events. Convert
82 // between the two.
83 ui::MouseWheelEvent* wheel_event =
84 static_cast<ui::MouseWheelEvent*>(event);
85 DCHECK(mojo_event->pointer_data);
86 mojo_event->pointer_data->horizontal_wheel =
87 ConvertUIWheelValueToMojoValue(wheel_event->x_offset());
88 mojo_event->pointer_data->horizontal_wheel =
89 ConvertUIWheelValueToMojoValue(wheel_event->y_offset());
90 }
91 delegate_->OnEvent(mojo_event.Pass());
92
93 switch (event->type()) {
94 case ui::ET_MOUSE_PRESSED:
95 case ui::ET_TOUCH_PRESSED:
96 platform_window_->SetCapture();
97 break;
98 case ui::ET_MOUSE_RELEASED:
99 case ui::ET_TOUCH_RELEASED:
100 platform_window_->ReleaseCapture();
101 break;
102 default:
103 break;
104 }
105
106 // We want to emulate the WM_CHAR generation behaviour of Windows.
107 //
108 // On Linux, we've previously inserted characters by having
109 // InputMethodAuraLinux take all key down events and send a character event
110 // to the TextInputClient. This causes a mismatch in code that has to be
111 // shared between Windows and Linux, including blink code. Now that we're
112 // trying to have one way of doing things, we need to standardize on and
113 // emulate Windows character events.
114 //
115 // This is equivalent to what we're doing in the current Linux port, but
116 // done once instead of done multiple times in different places.
117 if (event->type() == ui::ET_KEY_PRESSED) {
118 ui::KeyEvent* key_press_event = static_cast<ui::KeyEvent*>(event);
119 ui::KeyEvent char_event(key_press_event->GetCharacter(),
120 key_press_event->key_code(),
121 key_press_event->flags());
122
123 DCHECK_EQ(key_press_event->GetCharacter(), char_event.GetCharacter());
124 DCHECK_EQ(key_press_event->key_code(), char_event.key_code());
125 DCHECK_EQ(key_press_event->flags(), char_event.flags());
126
127 char_event.SetExtendedKeyEventData(
128 make_scoped_ptr(new mojo::MojoExtendedKeyEventData(
129 key_press_event->GetLocatedWindowsKeyboardCode(),
130 key_press_event->GetText(),
131 key_press_event->GetUnmodifiedText())));
132 char_event.set_platform_keycode(key_press_event->platform_keycode());
133
134 delegate_->OnEvent(mojo::Event::From(char_event));
135 }
136 }
137
138 void OnCloseRequest() override { platform_window_->Close(); }
139
140 void OnClosed() override { delegate_->OnDestroyed(); }
141
142 void OnWindowStateChanged(ui::PlatformWindowState state) override {}
143
144 void OnLostCapture() override {}
145
146 void OnAcceleratedWidgetAvailable(gfx::AcceleratedWidget widget) override {
147 delegate_->OnAcceleratedWidgetAvailable(widget,
148 metrics_->device_pixel_ratio);
149 }
150
151 void OnActivationChanged(bool active) override {}
152
153 scoped_ptr<ui::PlatformWindow> platform_window_;
154 Delegate* delegate_;
155 mojo::ViewportMetricsPtr metrics_;
156
157 DISALLOW_COPY_AND_ASSIGN(PlatformViewportX11);
158 };
159
160 // static
161 scoped_ptr<PlatformViewport> PlatformViewport::Create(Delegate* delegate) {
162 return make_scoped_ptr(new PlatformViewportX11(delegate));
163 }
164
165 } // namespace native_viewport
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