chrome/browser/ui/views/autofill/autofill_popup_base_view.cc

   1 // Copyright 2014 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 "chrome/browser/ui/views/autofill/autofill_popup_base_view.h"
   6
   7 #include "chrome/browser/ui/autofill/popup_constants.h"
   8 #include "ui/gfx/point.h"
   9 #include "ui/gfx/screen.h"
  10 #include "ui/views/border.h"
  11 #include "ui/views/event_utils.h"
  12 #include "ui/views/widget/widget.h"
  13
  14 #if defined(USE_AURA)
  15 #include "ui/views/corewm/window_animations.h"
  16 #endif
  17
  18 namespace autofill {
  19
  20 const SkColor AutofillPopupBaseView::kBorderColor =
  21     SkColorSetARGB(0xFF, 0xC7, 0xCA, 0xCE);
  22 const SkColor AutofillPopupBaseView::kHoveredBackgroundColor =
  23     SkColorSetARGB(0xFF, 0xCD, 0xCD, 0xCD);
  24 const SkColor AutofillPopupBaseView::kItemTextColor =
  25     SkColorSetARGB(0xFF, 0x7F, 0x7F, 0x7F);
  26 const SkColor AutofillPopupBaseView::kPopupBackground =
  27     SkColorSetARGB(0xFF, 0xFF, 0xFF, 0xFF);
  28 const SkColor AutofillPopupBaseView::kValueTextColor =
  29     SkColorSetARGB(0xFF, 0x00, 0x00, 0x00);
  30 const SkColor AutofillPopupBaseView::kWarningTextColor =
  31     SkColorSetARGB(0xFF, 0x7F, 0x7F, 0x7F);
  32
  33 AutofillPopupBaseView::AutofillPopupBaseView(
  34     AutofillPopupViewDelegate* delegate,
  35     views::Widget* observing_widget)
  36     : delegate_(delegate),
  37       observing_widget_(observing_widget) {}
  38 AutofillPopupBaseView::~AutofillPopupBaseView() {
  39   if (delegate_) {
  40     delegate_->ViewDestroyed();
  41
  42     RemoveObserver();
  43   }
  44 }
  45
  46 void AutofillPopupBaseView::DoShow() {
  47   if (!GetWidget()) {
  48     observing_widget_->AddObserver(this);
  49
  50     // The widget is destroyed by the corresponding NativeWidget, so we use
  51     // a weak pointer to hold the reference and don't have to worry about
  52     // deletion.
  53     views::Widget* widget = new views::Widget;
  54     views::Widget::InitParams params(views::Widget::InitParams::TYPE_POPUP);
  55     params.delegate = this;
  56     params.parent = container_view();
  57     widget->Init(params);
  58     widget->SetContentsView(this);
  59 #if defined(USE_AURA)
  60     // No animation for popup appearance (too distracting).
  61     views::corewm::SetWindowVisibilityAnimationTransition(
  62         widget->GetNativeView(), views::corewm::ANIMATE_HIDE);
  63 #endif
  64   }
  65
  66   SetBorder(views::Border::CreateSolidBorder(kPopupBorderThickness,
  67                                              kBorderColor));
  68
  69   DoUpdateBoundsAndRedrawPopup();
  70   GetWidget()->Show();
  71
  72   if (ShouldHideOnOutsideClick())
  73     GetWidget()->SetCapture(this);
  74 }
  75
  76 void AutofillPopupBaseView::DoHide() {
  77   // The controller is no longer valid after it hides us.
  78   delegate_ = NULL;
  79
  80   RemoveObserver();
  81
  82   if (GetWidget()) {
  83     // Don't call CloseNow() because some of the functions higher up the stack
  84     // assume the the widget is still valid after this point.
  85     // http://crbug.com/229224
  86     // NOTE: This deletes |this|.
  87     GetWidget()->Close();
  88   } else {
  89     delete this;
  90   }
  91 }
  92
  93 void AutofillPopupBaseView::RemoveObserver() {
  94   observing_widget_->RemoveObserver(this);
  95 }
  96
  97 void AutofillPopupBaseView::DoUpdateBoundsAndRedrawPopup() {
  98   GetWidget()->SetBounds(delegate_->popup_bounds());
  99   SchedulePaint();
 100 }
 101
 102 void AutofillPopupBaseView::OnWidgetBoundsChanged(views::Widget* widget,
 103                                                   const gfx::Rect& new_bounds) {
 104   DCHECK_EQ(widget, observing_widget_);
 105   HideController();
 106 }
 107
 108 void AutofillPopupBaseView::OnMouseCaptureLost() {
 109   ClearSelection();
 110 }
 111
 112 bool AutofillPopupBaseView::OnMouseDragged(const ui::MouseEvent& event) {
 113   if (HitTestPoint(event.location())) {
 114     SetSelection(event.location());
 115
 116     // We must return true in order to get future OnMouseDragged and
 117     // OnMouseReleased events.
 118     return true;
 119   }
 120
 121   // If we move off of the popup, we lose the selection.
 122   ClearSelection();
 123   return false;
 124 }
 125
 126 void AutofillPopupBaseView::OnMouseExited(const ui::MouseEvent& event) {
 127   ClearSelection();
 128 }
 129
 130 void AutofillPopupBaseView::OnMouseMoved(const ui::MouseEvent& event) {
 131   if (HitTestPoint(event.location()))
 132     SetSelection(event.location());
 133   else
 134     ClearSelection();
 135 }
 136
 137 bool AutofillPopupBaseView::OnMousePressed(const ui::MouseEvent& event) {
 138   if (HitTestPoint(event.location()))
 139     return true;
 140
 141   if (ShouldHideOnOutsideClick()) {
 142     GetWidget()->ReleaseCapture();
 143
 144     gfx::Point screen_loc = event.location();
 145     views::View::ConvertPointToScreen(this, &screen_loc);
 146
 147     ui::MouseEvent mouse_event = event;
 148     mouse_event.set_location(screen_loc);
 149
 150     if (ShouldRepostEvent(mouse_event)) {
 151       gfx::NativeView native_view = GetWidget()->GetNativeView();
 152       gfx::Screen* screen = gfx::Screen::GetScreenFor(native_view);
 153       gfx::NativeWindow window = screen->GetWindowAtScreenPoint(screen_loc);
 154       views::RepostLocatedEvent(window, mouse_event);
 155     }
 156
 157     HideController();
 158     // |this| is now deleted.
 159   }
 160
 161   return false;
 162 }
 163
 164 void AutofillPopupBaseView::OnMouseReleased(const ui::MouseEvent& event) {
 165   // Because this view can can be shown in response to a mouse press, it can
 166   // receive an OnMouseReleased event just after showing. This breaks the mouse
 167   // capture, so restart capturing here.
 168   if (ShouldHideOnOutsideClick() && GetWidget())
 169     GetWidget()->SetCapture(this);
 170
 171   // We only care about the left click.
 172   if (event.IsOnlyLeftMouseButton() && HitTestPoint(event.location()))
 173     AcceptSelection(event.location());
 174 }
 175
 176 void AutofillPopupBaseView::OnGestureEvent(ui::GestureEvent* event) {
 177   switch (event->type()) {
 178     case ui::ET_GESTURE_TAP_DOWN:
 179     case ui::ET_GESTURE_SCROLL_BEGIN:
 180     case ui::ET_GESTURE_SCROLL_UPDATE:
 181       if (HitTestPoint(event->location()))
 182         SetSelection(event->location());
 183       else
 184         ClearSelection();
 185       break;
 186     case ui::ET_GESTURE_TAP:
 187     case ui::ET_GESTURE_SCROLL_END:
 188       if (HitTestPoint(event->location()))
 189         SetSelection(event->location());
 190       else
 191         ClearSelection();
 192       break;
 193     case ui::ET_GESTURE_TAP_CANCEL:
 194     case ui::ET_SCROLL_FLING_START:
 195       ClearSelection();
 196       break;
 197     default:
 198       return;
 199   }
 200   event->SetHandled();
 201 }
 202
 203 void AutofillPopupBaseView::SetSelection(const gfx::Point& point) {
 204   if (delegate_)
 205     delegate_->SetSelectionAtPoint(point);
 206 }
 207
 208 void AutofillPopupBaseView::AcceptSelection(const gfx::Point& point) {
 209   if (delegate_)
 210     delegate_->AcceptSelectionAtPoint(point);
 211 }
 212
 213 void AutofillPopupBaseView::ClearSelection() {
 214   if (delegate_)
 215     delegate_->SelectionCleared();
 216 }
 217
 218 bool AutofillPopupBaseView::ShouldHideOnOutsideClick() {
 219   if (delegate_)
 220     return delegate_->ShouldHideOnOutsideClick();
 221
 222   // |this| instance should be in the process of being destroyed, so the return
 223   // value shouldn't matter.
 224   return false;
 225 }
 226
 227 void AutofillPopupBaseView::HideController() {
 228   if (delegate_)
 229     delegate_->Hide();
 230 }
 231
 232 bool AutofillPopupBaseView::ShouldRepostEvent(const ui::MouseEvent& event) {
 233   return delegate_->ShouldRepostEvent(event);
 234 }
 235
 236 gfx::NativeView AutofillPopupBaseView::container_view() {
 237   return delegate_->container_view();
 238 }
 239
 240
 241 }  // namespace autofill