wayland patch for inspection

ui/wayland/wayland_input_device.cc

+// Copyright 2013 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.
+
+#include "ui/wayland/wayland_input_device.h"
+
+#include <X11/X.h>
+#include <linux/input.h>
+#include <wayland-client.h>
+
+#include <wayland-egl.h>
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+
+#include "base/wayland/wayland_event.h"
+#include "ui/wayland/wayland_delegate.h"
+#include "ui/wayland/wayland_window.h"
+#include "ui/base/events/event.h"
+#include "ui/base/events/event_constants.h"
+#include "ui/base/hit_test.h"
+#include "ui/base/ui_base_types.h"
+
+using namespace base::wayland;
+
+namespace ui {
+
+// static
+BoundsChangeType WaylandInputDevice::GetBoundsChangeForWindowComponent(int component)
+{
+  BoundsChangeType bounds_change = kBoundsChange_None;
+  switch (component) {
+    case HTCAPTION:
+      bounds_change = kBoundsChange_Repositions;
+      break;
+    case HTTOPLEFT:
+    case HTTOP:
+    case HTTOPRIGHT:
+    case HTLEFT:
+    case HTBOTTOMLEFT:
+    case HTRIGHT:
+    case HTBOTTOMRIGHT:
+    case HTBOTTOM:
+      //case HTGROWBOX:
+      bounds_change = kBoundsChange_Resizes;
+      break;
+    default:
+      break;
+  }
+  return bounds_change;
+}
+
+// static
+int WaylandInputDevice::GetPointerImageForWindowComponent(int component)
+{
+  WindowLocation location = WaylandInputDevice::GetLocationForWindowComponent(component);
+
+  switch (location) {
+    case WINDOW_RESIZING_TOP:
+      return CURSOR_TOP;
+    case WINDOW_RESIZING_BOTTOM:
+      return CURSOR_BOTTOM;
+    case WINDOW_RESIZING_LEFT:
+      return CURSOR_LEFT;
+    case WINDOW_RESIZING_RIGHT:
+      return CURSOR_RIGHT;
+    case WINDOW_RESIZING_TOP_LEFT:
+      return CURSOR_TOP_LEFT;
+    case WINDOW_RESIZING_TOP_RIGHT:
+      return CURSOR_TOP_RIGHT;
+    case WINDOW_RESIZING_BOTTOM_LEFT:
+      return CURSOR_BOTTOM_LEFT;
+    case WINDOW_RESIZING_BOTTOM_RIGHT:
+      return CURSOR_BOTTOM_RIGHT;
+    case WINDOW_EXTERIOR:
+    case WINDOW_TITLEBAR:
+    default:
+      return CURSOR_LEFT_PTR;
+  }
+}
+
+// static
+WindowLocation WaylandInputDevice::GetLocationForWindowComponent(int component)
+{
+  WindowLocation location = WINDOW_INTERIOR;
+  switch (component) {
+    case HTCAPTION:
+      location = WINDOW_TITLEBAR;
+      break;
+    case HTTOPLEFT:
+      location = WINDOW_RESIZING_TOP_LEFT;
+      break;
+    case HTTOP:
+      location = WINDOW_RESIZING_TOP;
+      break;
+    case HTTOPRIGHT:
+      location = WINDOW_RESIZING_TOP_RIGHT;
+      break;
+    case HTLEFT:
+      location = WINDOW_RESIZING_LEFT;
+      break;
+    case HTBOTTOMLEFT:
+      location = WINDOW_RESIZING_BOTTOM_LEFT;
+      break;
+    case HTRIGHT:
+      location = WINDOW_RESIZING_RIGHT;
+      break;
+    case HTBOTTOMRIGHT:
+      location = WINDOW_RESIZING_BOTTOM_RIGHT;
+      break;
+    case HTBOTTOM:
+      location = WINDOW_RESIZING_BOTTOM;
+      break;
+    default:
+      break;
+  }
+  return location;
+}
+
+WaylandInputDevice::WaylandInputDevice(WaylandDisplay* disp, uint32_t id)
+  : input_seat_(NULL),
+    display_(disp->display()),
+    current_pointer_image_(CURSOR_LEFT_PTR),
+    input_pointer_(NULL),
+    input_keyboard_(NULL),
+    pointer_focus_(NULL),
+    keyboard_focus_(NULL),
+    keyboard_modifiers_(0)
+{
+  static const struct wl_seat_listener kInputSeatListener = {
+    WaylandInputDevice::OnSeatCapabilities,
+  };
+
+  input_seat_ = static_cast<wl_seat*>(
+      wl_registry_bind(disp->registry(), id, &wl_seat_interface, 1));
+  wl_seat_add_listener(input_seat_, &kInputSeatListener, this);
+  wl_seat_set_user_data(input_seat_, this);
+
+  InitXKB();
+}
+
+WaylandInputDevice::~WaylandInputDevice()
+{
+  if (input_seat_)
+    wl_seat_destroy(input_seat_);
+
+  FiniXKB();
+}
+
+void WaylandInputDevice::InitXKB()
+{
+  // Initialize XKB
+  xkb_.names.rules = "evdev";
+  xkb_.names.model = "pc105";
+  xkb_.names.layout = "us";
+  xkb_.names.variant = "";
+  xkb_.names.options = "";
+
+  xkb_.context = xkb_context_new((xkb_context_flags)0);
+  if (!xkb_.context) {
+    return;
+  }
+
+  xkb_.keymap =
+    xkb_map_new_from_names(xkb_.context, &xkb_.names, (xkb_map_compile_flags)0);
+  if (!xkb_.keymap) {
+    return;
+  }
+
+  xkb_.state = xkb_state_new(xkb_.keymap);
+  if (!xkb_.state) {
+    return;
+  }
+
+  xkb_.control_mask =
+    1 << xkb_map_mod_get_index(xkb_.keymap, "Control");
+  xkb_.alt_mask =
+    1 << xkb_map_mod_get_index(xkb_.keymap, "Mod1");
+  xkb_.shift_mask =
+    1 << xkb_map_mod_get_index(xkb_.keymap, "Shift");
+}
+
+void WaylandInputDevice::FiniXKB()
+{
+  xkb_state_unref(xkb_.state);
+  xkb_map_unref(xkb_.keymap);
+  xkb_context_unref(xkb_.context);
+}
+
+void WaylandInputDevice::OnSeatCapabilities(void *data, wl_seat *seat, uint32_t caps)
+{
+  WaylandInputDevice* device = static_cast<WaylandInputDevice*>(data);
+
+  static const struct wl_pointer_listener kInputPointerListener = {
+    WaylandInputDevice::OnPointerEnter,
+    WaylandInputDevice::OnPointerLeave,
+    WaylandInputDevice::OnMotionNotify,
+    WaylandInputDevice::OnButtonNotify,
+    WaylandInputDevice::OnAxisNotify,
+  };
+
+  if ((caps & WL_SEAT_CAPABILITY_POINTER) && !device->input_pointer_) {
+    device->input_pointer_ = wl_seat_get_pointer(seat);
+    wl_pointer_set_user_data(device->input_pointer_, device);
+    wl_pointer_add_listener(device->input_pointer_, &kInputPointerListener,
+        device);
+  } else if (!(caps & WL_SEAT_CAPABILITY_POINTER) && device->input_pointer_) {
+    wl_pointer_destroy(device->input_pointer_);
+    device->input_pointer_ = NULL;
+  }
+
+  static const struct wl_keyboard_listener kInputKeyboardListener = {
+    WaylandInputDevice::OnKeyboardKeymap,
+    WaylandInputDevice::OnKeyboardEnter,
+    WaylandInputDevice::OnKeyboardLeave,
+    WaylandInputDevice::OnKeyNotify,
+    WaylandInputDevice::OnKeyModifiers,
+  };
+
+  if ((caps & WL_SEAT_CAPABILITY_KEYBOARD) && !device->input_keyboard_) {
+    device->input_keyboard_ = wl_seat_get_keyboard(seat);
+    wl_keyboard_set_user_data(device->input_keyboard_, device);
+    wl_keyboard_add_listener(device->input_keyboard_, &kInputKeyboardListener,
+        device);
+  } else if (!(caps & WL_SEAT_CAPABILITY_KEYBOARD) && device->input_keyboard_) {
+    wl_keyboard_destroy(device->input_keyboard_);
+    device->input_keyboard_ = NULL;
+  }
+}
+
+void WaylandInputDevice::OnMotionNotify(void* data,
+    wl_pointer* input_pointer,
+    uint32_t time,
+    wl_fixed_t sx_w,
+    wl_fixed_t sy_w)
+{
+  WaylandInputDevice* device = static_cast<WaylandInputDevice*>(data);
+  WaylandWindow* window = device->pointer_focus_;
+  GLfloat sx = wl_fixed_to_double(sx_w);
+  GLfloat sy = wl_fixed_to_double(sy_w);
+
+  device->surface_position_.SetPoint(sx, sy);
+
+  WaylandEvent event;
+  event.type = WAYLAND_MOTION;
+  event.motion.time = time;
+  event.motion.modifiers = device->keyboard_modifiers_;
+  event.motion.x = sx;
+  event.motion.y = sy;
+
+  if (!window->delegate())
+    return;
+
+  gfx::Point pt(event.motion.x, event.motion.y);
+  int component = window->delegate()->GetNonClientComponent(pt);
+  BoundsChangeType type = WaylandInputDevice::GetBoundsChangeForWindowComponent(component);
+
+  switch(type)
+  {
+    case kBoundsChange_Resizes:
+      WaylandDisplay::GetDisplay(device->display_)->SetPointerImage(
+          device, time, WaylandInputDevice::GetPointerImageForWindowComponent(component));
+      break;
+    case kBoundsChange_Repositions:
+    default:
+      WaylandDisplay::GetDisplay(device->display_)->SetPointerImage(
+          device, time, CURSOR_LEFT_PTR);
+      break;
+  }
+
+  if(type == kBoundsChange_None)
+    window->delegate()->OnMouseEvent(&event);
+}
+
+void WaylandInputDevice::OnAxisNotify(void* data,
+    wl_pointer* input_pointer,
+    uint32_t time,
+    uint32_t axis,
+    int32_t value)
+{
+  WaylandInputDevice* device = static_cast<WaylandInputDevice*>(data);
+  WaylandWindow* window = device->pointer_focus_;
+
+  WaylandEvent event;
+  event.type = WAYLAND_BUTTON;
+  event.button.time = time;
+  event.button.button = value > 0 ? BTN_SIDE : BTN_EXTRA;
+  event.button.state = 1;
+  event.button.modifiers = device->keyboard_modifiers_;
+  event.button.x = device->surface_position_.x();
+  event.button.y = device->surface_position_.y();
+
+  if (!window->delegate())
+    return;
+
+  window->delegate()->OnMouseEvent(&event);
+}
+
+void WaylandInputDevice::OnButtonNotify(void* data,
+    wl_pointer* input_pointer,
+    uint32_t serial,
+    uint32_t time,
+    uint32_t button,
+    uint32_t state)
+{
+  WaylandInputDevice* device = static_cast<WaylandInputDevice*>(data);
+  WaylandWindow* window = device->pointer_focus_;
+
+  WaylandDisplay::GetDisplay(device->display_)->SetSerial(serial);
+
+  WaylandEvent event;
+  event.type = WAYLAND_BUTTON;
+  event.button.time = time;
+  event.button.button = button;
+  event.button.state = state;
+  event.button.modifiers = device->keyboard_modifiers_;
+  event.button.x = device->surface_position_.x();
+  event.button.y = device->surface_position_.y();
+
+  if (!window->delegate())
+    return;
+
+  gfx::Point pt(event.button.x, event.button.y);
+  int component = window->delegate()->GetNonClientComponent(pt);
+  BoundsChangeType type = WaylandInputDevice::GetBoundsChangeForWindowComponent(component);
+
+  if(WaylandDisplay::GetDisplay(device->display_)->shell() && 
+      button == BTN_LEFT && state == WL_POINTER_BUTTON_STATE_PRESSED)
+  {
+    switch(type)
+    {
+      case kBoundsChange_Repositions:
+        if(!window->shell_surface())
+          break;
+
+        WaylandDisplay::GetDisplay(device->display_)->SetPointerImage(
+            device, time, CURSOR_DRAGGING);
+        wl_shell_surface_move(window->shell_surface(), device->input_seat_, serial);
+        break;
+      case kBoundsChange_Resizes:
+        if(!window->shell_surface())
+          break;
+
+        wl_shell_surface_resize(window->shell_surface(), device->input_seat_, serial,
+            WaylandInputDevice::GetLocationForWindowComponent(component));
+        break;
+      default:
+        break;
+    }
+  }
+
+  if(type == kBoundsChange_None)
+    window->delegate()->OnMouseEvent(&event);
+}
+
+void WaylandInputDevice::OnKeyNotify(void* data,
+    wl_keyboard* input_keyboard,
+    uint32_t serial,
+    uint32_t time,
+    uint32_t key,
+    uint32_t state)
+{
+  WaylandInputDevice* device = static_cast<WaylandInputDevice*>(data);
+  WaylandWindow* window = device->keyboard_focus_;
+  uint32_t code, num_syms;
+  const xkb_keysym_t *syms;
+  xkb_keysym_t sym;
+  xkb_mod_mask_t mask;
+
+  WaylandDisplay::GetDisplay(device->display_)->SetSerial(serial);
+
+  WaylandEvent event;
+  event.type = WAYLAND_KEY;
+  event.key.time = time;
+  event.key.key = key;
+  event.key.state = state;
+
+  code = key + 8;
+  num_syms = xkb_key_get_syms(device->xkb_.state, code, &syms);
+
+  mask = xkb_state_serialize_mods(device->xkb_.state, 
+      (xkb_state_component)(XKB_STATE_DEPRESSED | XKB_STATE_LATCHED));
+  device->keyboard_modifiers_ = 0;
+  if (mask & device->xkb_.control_mask)
+    device->keyboard_modifiers_ |= MOD_CONTROL_MASK;
+  if (mask & device->xkb_.alt_mask)
+    device->keyboard_modifiers_ |= MOD_ALT_MASK;
+  if (mask & device->xkb_.shift_mask)
+    device->keyboard_modifiers_ |= MOD_SHIFT_MASK;
+
+  if(num_syms == 1)
+    event.key.sym = syms[0];
+  else
+    event.key.sym = NoSymbol;
+  event.key.modifiers = device->keyboard_modifiers_;
+
+  if (!window->delegate())
+    return;
+
+  // TODO: Add key processing
+  //
+  window->delegate()->OnKeyNotify(&event);
+}
+
+void WaylandInputDevice::OnKeyModifiers(void *data, wl_keyboard *keyboard,
+    uint32_t serial, uint32_t mods_depressed, uint32_t mods_latched, 
+    uint32_t mods_locked, uint32_t group)
+{
+  WaylandInputDevice* device = static_cast<WaylandInputDevice*>(data);
+
+  xkb_state_update_mask(device->xkb_.state, mods_depressed, mods_latched, 
+      mods_locked, 0, 0, group);
+}
+
+void WaylandInputDevice::OnPointerEnter(void* data,
+    wl_pointer* input_pointer,
+    uint32_t serial,
+    wl_surface* surface,
+    wl_fixed_t sx_w,
+    wl_fixed_t sy_w)
+{
+  WaylandInputDevice* device = static_cast<WaylandInputDevice*>(data);
+  WaylandWindow* window;
+
+  GLfloat sx = wl_fixed_to_double(sx_w);
+  GLfloat sy = wl_fixed_to_double(sy_w);
+
+  WaylandDisplay::GetDisplay(device->display_)->SetSerial(serial);
+  device->pointer_enter_serial_ = serial;
+
+  WaylandEvent event;
+  event.type = WAYLAND_POINTER_FOCUS;
+  event.pointer_focus.serial = serial;
+  event.pointer_focus.x = (int32_t)sx;
+  event.pointer_focus.y = (int32_t)sy;
+
+  // If we have a surface, then a new window is in focus
+  event.pointer_focus.state = 1;
+  window = static_cast<WaylandWindow*>(wl_surface_get_user_data(surface));
+  device->pointer_focus_ = window;
+
+  if (!window->delegate())
+    return;
+
+  window->delegate()->OnMouseEnter(&event);
+}
+
+void WaylandInputDevice::OnPointerLeave(void* data,
+    wl_pointer* input_pointer,
+    uint32_t serial,
+    wl_surface* surface)
+{
+  WaylandInputDevice* device = static_cast<WaylandInputDevice*>(data);
+  WaylandWindow* window = device->pointer_focus_;
+
+  WaylandDisplay::GetDisplay(device->display_)->SetSerial(serial);
+
+  WaylandEvent event;
+  event.type = WAYLAND_POINTER_FOCUS;
+  event.pointer_focus.serial = serial;
+
+  // If we have a window, then this means it loses focus
+  if (window) {
+    if(!WaylandDisplay::GetDisplay(device->display_)->IsWindow(window))
+      return;
+
+    event.pointer_focus.state = 0;
+    device->pointer_focus_ = NULL;
+    device->current_pointer_image_ = POINTER_UNSET;
+
+    if (!window->delegate())
+      return;
+
+    window->delegate()->OnMouseLeave(&event);
+  }
+}
+
+void WaylandInputDevice::OnKeyboardKeymap(void *data,
+    struct wl_keyboard *keyboard,
+    uint32_t format, int fd, uint32_t size)
+{
+}
+
+void WaylandInputDevice::OnKeyboardEnter(void* data,
+    wl_keyboard* input_keyboard,
+    uint32_t serial,
+    wl_surface* surface,
+    wl_array* keys)
+{
+  WaylandInputDevice* device = static_cast<WaylandInputDevice*>(data);
+  WaylandWindow* window;
+
+  WaylandDisplay::GetDisplay(device->display_)->SetSerial(serial);
+  window = device->keyboard_focus_ = 
+    static_cast<WaylandWindow*>(wl_surface_get_user_data(surface));
+
+  WaylandEvent event;
+  event.type = WAYLAND_KEYBOARD_FOCUS;
+  event.keyboard_focus.serial = serial;
+  device->keyboard_modifiers_ = 0;
+  event.keyboard_focus.modifiers = device->keyboard_modifiers_;
+  event.keyboard_focus.state = 1;
+
+  if (!window->delegate())
+    return;
+
+  window->delegate()->OnKeyboardEnter(&event);
+}
+
+void WaylandInputDevice::OnKeyboardLeave(void* data,
+    wl_keyboard* input_keyboard,
+    uint32_t serial,
+    wl_surface* surface)
+{
+  WaylandInputDevice* device = static_cast<WaylandInputDevice*>(data);
+  WaylandWindow* window = device->keyboard_focus_;
+
+  WaylandDisplay::GetDisplay(device->display_)->SetSerial(serial);
+
+  WaylandEvent event;
+  event.type = WAYLAND_KEYBOARD_FOCUS;
+  event.keyboard_focus.serial = serial;
+  device->keyboard_modifiers_ = 0;
+
+  // If there is a window, then it loses focus
+  if (window) {
+    if(!WaylandDisplay::GetDisplay(device->display_)->IsWindow(window))
+      return;
+
+    event.keyboard_focus.state = 0;
+    device->keyboard_focus_ = NULL;
+
+    if (!window->delegate())
+      return;
+
+    window->delegate()->OnKeyboardLeave(&event);
+  }
+}
+
+}  // namespace ui