Index: ui/wayland/wayland_input_device.h |
diff --git a/ui/wayland/wayland_input_device.h b/ui/wayland/wayland_input_device.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..aad5838129c0f99ce5452c8b59bbd417ebea3ea2 |
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+++ b/ui/wayland/wayland_input_device.h |
@@ -0,0 +1,108 @@ |
+// Copyright (c) 2011 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef WAYLAND_INPUT_DEVICE_H_ |
+#define WAYLAND_INPUT_DEVICE_H_ |
+ |
+#include <stdint.h> |
+ |
+#include "base/basictypes.h" |
+#include "wayland_geometry_utils.h" |
+#include "wayland_widget.h" |
+ |
+struct xkb_desc; |
+struct wl_array; |
+struct wl_buffer; |
+struct wl_display; |
+struct wl_input_device; |
+struct wl_input_device_listener; |
+struct wl_surface; |
+ |
+class WaylandWindow; |
+ |
+/* |
+This class represents an input device that was registered with Wayland. |
+The purpose of this class is to parse and wrap events into generic |
+WaylandEvent types and dispatch the event to the appropriate WaylandWindow. |
+ |
+How Wayland events work: |
+------------------------ |
+ |
+When the On*Focus events are triggered, the input device receives a reference |
+to the surface that just received/lost focus. Each surface is associated with |
+a unique WaylandWindow. When processing the focus events we keep track of the |
+currently focused window such that when we receive different events (mouse |
+button press or key press) we only send the event to the window in focus. |
+*/ |
+class WaylandInputDevice { |
+ |
+ public: |
+ WaylandInputDevice(wl_display* display, uint32_t id); |
+ ~WaylandInputDevice(); |
+ |
+ // Used to change the surface of the input device (normally pointer image). |
+ void Attach(wl_buffer* buffer, int32_t x, int32_t y); |
+ private: |
+ wl_input_device* input_device_; |
+ |
+ /* These keep track of the window that's currently under focus. NULL if no |
+ window is under focus. |
+ */ |
+ WaylandWindow* pointer_focus_; |
+ WaylandWindow* keyboard_focus_; |
+ |
+ /* Keeps track of the currently active keyboard modifiers. We keep this |
+ since we want to advertise keyboard modifiers with mouse events. |
+ */ |
+ uint32_t keyboard_modifiers_; |
+ |
+ /* Keeps track of the last position for the motion event. We want to |
+ publish this with events such as button notify which doesn't have a |
+ position associated by default. |
+ */ |
+ Point global_position_; |
+ Point surface_position_; |
+ |
+ /* Keep track of the time of last event. Useful when we get buffer Attach |
+ calls and the calls wouldn't have a way of getting an event time. |
+ */ |
+ uint32_t last_event_time_; |
+ |
+ /* keymap used to transform keyboard events. */ |
+ xkb_desc* xkb_; |
+ |
+ /* List of callback functions for input device events. */ |
+ static const wl_input_device_listener input_device_listener_; |
+ |
+ /* Input device callback functions. These will create 'WaylandEvent's and |
+ send them to the currently focused window. |
+ Args: |
+ - data: Pointer to the WaylandInputDevice object associated with the |
+ 'input_device' |
+ - input_device: |
+ The input device that sent the event |
+ - time: The time of the event. |
+ */ |
+ static void OnMotionNotify(void* data, wl_input_device* input_device, |
+ uint32_t time, int32_t x, int32_t y, |
+ int32_t sx, int32_t sy); |
+ static void OnButtonNotify(void* data, wl_input_device* input_device, |
+ uint32_t time, uint32_t button, uint32_t state); |
+ static void OnKeyNotify(void* data, wl_input_device* input_device, |
+ uint32_t time, uint32_t key, uint32_t state); |
+ /* On*Focus events also have a Wayland surface associated with them. If the |
+ surface is NULL, then the event signifies a loss of focus. Otherwise we |
+ use the surface to get the WaylandWindow that receives focus. |
+ */ |
+ static void OnPointerFocus(void* data, wl_input_device* input_device, |
+ uint32_t time, wl_surface *surface, |
+ int32_t x, int32_t y, int32_t sx, int32_t sy); |
+ static void OnKeyboardFocus(void* data, wl_input_device* input_device, |
+ uint32_t time, wl_surface *surface, |
+ wl_array* keys); |
+ |
+ DISALLOW_COPY_AND_ASSIGN(WaylandInputDevice); |
+}; |
+ |
+#endif |