Removing deprecated GTK-Views code.

ui/views/controls/scrollbar/native_scroll_bar_gtk.cc

-// Copyright (c) 2012 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/views/controls/scrollbar/native_scroll_bar_gtk.h"
-
-#include <gtk/gtk.h>
-
-#include "ui/base/keycodes/keyboard_codes_posix.h"
-#include "ui/views/controls/scrollbar/native_scroll_bar.h"
-#include "ui/views/controls/scrollbar/native_scroll_bar_views.h"
-#include "ui/views/controls/scrollbar/scroll_bar.h"
-#include "ui/views/widget/widget.h"
-
-namespace views {
-
-////////////////////////////////////////////////////////////////////////////////
-// NativeScrollBarGtk, public:
-
-NativeScrollBarGtk::NativeScrollBarGtk(NativeScrollBar* scroll_bar)
-    : NativeControlGtk(),
-      native_scroll_bar_(scroll_bar) {
-  set_focus_view(scroll_bar);
-}
-
-NativeScrollBarGtk::~NativeScrollBarGtk() {
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// NativeScrollBarGtk, View overrides:
-
-void NativeScrollBarGtk::Layout() {
-  NativeControlGtk::Layout();
-}
-
-gfx::Size NativeScrollBarGtk::GetPreferredSize() {
-  if (native_scroll_bar_->IsHorizontal())
-    return gfx::Size(0, GetHorizontalScrollBarHeight());
-  return gfx::Size(GetVerticalScrollBarWidth(), 0);
-}
-
-// TODO(oshima|jcampan): key/mouse events are not delievered and
-// the following code is not tested. It requires the focus manager to be fully
-// implemented.
-bool NativeScrollBarGtk::OnKeyPressed(const KeyEvent& event) {
-  if (!native_view())
-    return false;
-  switch (event.key_code()) {
-    case ui::VKEY_UP:
-      if (!native_scroll_bar_->IsHorizontal())
-        MoveStep(false /* negative */);
-      break;
-    case ui::VKEY_DOWN:
-      if (!native_scroll_bar_->IsHorizontal())
-        MoveStep(true /* positive */);
-      break;
-    case ui::VKEY_LEFT:
-      if (native_scroll_bar_->IsHorizontal())
-        MoveStep(false /* negative */);
-      break;
-    case ui::VKEY_RIGHT:
-      if (native_scroll_bar_->IsHorizontal())
-        MoveStep(true /* positive */);
-      break;
-    case ui::VKEY_PRIOR:
-      MovePage(false /* negative */);
-      break;
-    case ui::VKEY_NEXT:
-      MovePage(true /* positive */);
-      break;
-    case ui::VKEY_HOME:
-      MoveTo(0);
-      break;
-    case ui::VKEY_END:
-      MoveToBottom();
-      break;
-    default:
-      return false;
-  }
-  return true;
-}
-
-bool NativeScrollBarGtk::OnMouseWheel(const MouseWheelEvent& e) {
-  if (!native_view())
-    return false;
-  MoveBy(-e.offset());  // e.GetOffset() > 0 means scroll up.
-  return true;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// NativeScrollBarGtk, NativeControlGtk overrides:
-
-void NativeScrollBarGtk::CreateNativeControl() {
-  GtkObject* adj = gtk_adjustment_new(native_scroll_bar_->GetMinPosition(),
-                                      native_scroll_bar_->GetMinPosition(),
-                                      native_scroll_bar_->GetMaxPosition(),
-                                      10, 10,
-                                      0);
-  GtkWidget* widget;
-  if (native_scroll_bar_->IsHorizontal()) {
-    widget = gtk_hscrollbar_new(GTK_ADJUSTMENT(adj));
-  } else {
-    widget = gtk_vscrollbar_new(GTK_ADJUSTMENT(adj));
-  }
-
-  gtk_range_set_update_policy(GTK_RANGE(widget), GTK_UPDATE_CONTINUOUS);
-
-  g_signal_connect(adj, "value-changed",
-                   G_CALLBACK(CallValueChanged), this);
-
-  NativeControlCreated(widget);
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// NativeScrollBarGtk, NativeScrollBarWrapper overrides:
-
-int NativeScrollBarGtk::GetPosition() const {
-  return static_cast<int>(gtk_range_get_value(GTK_RANGE(native_view())));
-}
-
-View* NativeScrollBarGtk::GetView() {
-  return this;
-}
-
-void NativeScrollBarGtk::Update(int viewport_size,
-                                int content_size,
-                                int current_pos) {
-  if (!native_view())
-    return;
-
-  if (content_size < 0)
-    content_size = 0;
-
-  if (current_pos < 0)
-    current_pos = 0;
-
-  if (current_pos > content_size)
-    current_pos = content_size;
-
-  ScrollBarController* controller = native_scroll_bar_->controller();
-  int step = controller->GetScrollIncrement(native_scroll_bar_,
-                                            false /* step */,
-                                            true /* positive */);
-  int page = controller->GetScrollIncrement(native_scroll_bar_,
-                                            true /* page */, true);
-  GtkObject* adj = gtk_adjustment_new(current_pos,
-                                      native_scroll_bar_->GetMinPosition(),
-                                      content_size,
-                                      step, page,
-                                      viewport_size);
-  gtk_range_set_adjustment(GTK_RANGE(native_view()), GTK_ADJUSTMENT(adj));
-  g_signal_connect(adj, "value-changed", G_CALLBACK(CallValueChanged), this);
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// NativeScrollBarGtk, private:
-
-void NativeScrollBarGtk::ValueChanged() {
-  ScrollBarController* controller = native_scroll_bar_->controller();
-  controller->ScrollToPosition(native_scroll_bar_, GetPosition());
-}
-
-// static
-void NativeScrollBarGtk::CallValueChanged(GtkWidget* widget,
-                                          NativeScrollBarGtk* scroll_bar) {
-  scroll_bar->ValueChanged();
-}
-
-void NativeScrollBarGtk::MoveBy(int o) {
-  MoveTo(GetPosition() + o);
-}
-
-void NativeScrollBarGtk::MovePage(bool positive) {
-  ScrollBarController* controller = native_scroll_bar_->controller();
-  MoveBy(controller->GetScrollIncrement(native_scroll_bar_, true, positive));
-}
-
-void NativeScrollBarGtk::MoveStep(bool positive) {
-  ScrollBarController* controller = native_scroll_bar_->controller();
-  MoveBy(controller->GetScrollIncrement(native_scroll_bar_, false, positive));
-}
-
-void NativeScrollBarGtk::MoveTo(int p) {
-  if (p < native_scroll_bar_->GetMinPosition())
-    p = native_scroll_bar_->GetMinPosition();
-  if (p > native_scroll_bar_->GetMaxPosition())
-    p = native_scroll_bar_->GetMaxPosition();
-  GtkAdjustment* adj = gtk_range_get_adjustment(GTK_RANGE(native_view()));
-  gtk_adjustment_set_value(adj, p);
-}
-
-void NativeScrollBarGtk::MoveToBottom() {
-  GtkAdjustment* adj = gtk_range_get_adjustment(GTK_RANGE(native_view()));
-  MoveTo(adj->upper);
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// NativewScrollBarWrapper, public:
-
-// static
-NativeScrollBarWrapper* NativeScrollBarWrapper::CreateWrapper(
-    NativeScrollBar* scroll_bar) {
-  if (Widget::IsPureViews())
-    return new NativeScrollBarViews(scroll_bar);
-  return new NativeScrollBarGtk(scroll_bar);
-}
-
-// static
-int NativeScrollBarWrapper::GetHorizontalScrollBarHeight() {
-  // TODO(oshima): get this from gtk's widget property "slider-width".
-  return 20;
-}
-
-// static
-int NativeScrollBarWrapper::GetVerticalScrollBarWidth() {
-  // TODO(oshima): get this from gtk's widget property "slider-width".
-  return 20;
-}
-
-}  // namespace views