src/chrome/browser/ui/views/location_bar/zoom_view.cc

   1 // Copyright (c) 2012 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/location_bar/zoom_view.h"
   6
   7 #include "chrome/browser/ui/toolbar/toolbar_model.h"
   8 #include "chrome/browser/ui/view_ids.h"
   9 #include "chrome/browser/ui/views/location_bar/zoom_bubble_view.h"
  10 #include "chrome/browser/ui/zoom/zoom_controller.h"
  11 #include "chrome/grit/generated_resources.h"
  12 #include "ui/accessibility/ax_view_state.h"
  13 #include "ui/base/l10n/l10n_util.h"
  14 #include "ui/base/resource/resource_bundle.h"
  15 #include "ui/events/event.h"
  16 #include "ui/gfx/size.h"
  17
  18 ZoomView::ZoomView(LocationBarView::Delegate* location_bar_delegate)
  19     : location_bar_delegate_(location_bar_delegate) {
  20   SetAccessibilityFocusable(true);
  21   Update(NULL);
  22 }
  23
  24 ZoomView::~ZoomView() {
  25 }
  26
  27 void ZoomView::Update(ZoomController* zoom_controller) {
  28   if (!zoom_controller || zoom_controller->IsAtDefaultZoom() ||
  29       location_bar_delegate_->GetToolbarModel()->input_in_progress()) {
  30     SetVisible(false);
  31     ZoomBubbleView::CloseBubble();
  32     return;
  33   }
  34
  35   SetTooltipText(l10n_util::GetStringFUTF16Int(
  36       IDS_TOOLTIP_ZOOM, zoom_controller->GetZoomPercent()));
  37   SetImage(ui::ResourceBundle::GetSharedInstance().GetImageSkiaNamed(
  38       zoom_controller->GetResourceForZoomLevel()));
  39   SetVisible(true);
  40 }
  41
  42 void ZoomView::GetAccessibleState(ui::AXViewState* state) {
  43   state->name = l10n_util::GetStringUTF16(IDS_ACCNAME_ZOOM);
  44   state->role = ui::AX_ROLE_BUTTON;
  45 }
  46
  47 bool ZoomView::GetTooltipText(const gfx::Point& p,
  48                               base::string16* tooltip) const {
  49   // Don't show tooltip if the zoom bubble is displayed.
  50   return !ZoomBubbleView::IsShowing() && ImageView::GetTooltipText(p, tooltip);
  51 }
  52
  53 bool ZoomView::OnMousePressed(const ui::MouseEvent& event) {
  54   // Do nothing until mouse is released.
  55   return true;
  56 }
  57
  58 void ZoomView::OnMouseReleased(const ui::MouseEvent& event) {
  59   if (event.IsOnlyLeftMouseButton() && HitTestPoint(event.location()))
  60     ActivateBubble();
  61 }
  62
  63 bool ZoomView::OnKeyPressed(const ui::KeyEvent& event) {
  64   if (event.key_code() != ui::VKEY_SPACE &&
  65       event.key_code() != ui::VKEY_RETURN) {
  66     return false;
  67   }
  68
  69   ActivateBubble();
  70   return true;
  71 }
  72
  73 void ZoomView::OnGestureEvent(ui::GestureEvent* event) {
  74   if (event->type() == ui::ET_GESTURE_TAP) {
  75     ActivateBubble();
  76     event->SetHandled();
  77   }
  78 }
  79
  80 void ZoomView::ActivateBubble() {
  81   ZoomBubbleView::ShowBubble(location_bar_delegate_->GetWebContents(), false);
  82 }