ash/system/user/button_from_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 "ash/system/user/button_from_view.h"
   6
   7 #include "ash/ash_constants.h"
   8 #include "ash/system/tray/tray_constants.h"
   9 #include "ui/gfx/canvas.h"
  10 #include "ui/views/background.h"
  11 #include "ui/views/border.h"
  12 #include "ui/views/layout/box_layout.h"
  13
  14 namespace ash {
  15
  16 namespace {
  17
  18 // The border color of the user button.
  19 const SkColor kBorderColor = 0xffdcdcdc;
  20
  21 }  // namespace
  22
  23 namespace tray {
  24
  25 ButtonFromView::ButtonFromView(views::View* content,
  26                                views::ButtonListener* listener,
  27                                bool highlight_on_hover,
  28                                const gfx::Insets& tab_frame_inset)
  29     : CustomButton(listener),
  30       content_(content),
  31       highlight_on_hover_(highlight_on_hover),
  32       button_hovered_(false),
  33       show_border_(false),
  34       tab_frame_inset_(tab_frame_inset) {
  35   set_notify_enter_exit_on_child(true);
  36   SetLayoutManager(
  37       new views::BoxLayout(views::BoxLayout::kHorizontal, 1, 1, 0));
  38   AddChildView(content_);
  39   ShowActive();
  40   // Only make it focusable when we are active/interested in clicks.
  41   if (listener)
  42     SetFocusable(true);
  43 }
  44
  45 ButtonFromView::~ButtonFromView() {}
  46
  47 void ButtonFromView::ForceBorderVisible(bool show) {
  48   show_border_ = show;
  49   ShowActive();
  50 }
  51
  52 void ButtonFromView::OnMouseEntered(const ui::MouseEvent& event) {
  53   button_hovered_ = true;
  54   ShowActive();
  55 }
  56
  57 void ButtonFromView::OnMouseExited(const ui::MouseEvent& event) {
  58   button_hovered_ = false;
  59   ShowActive();
  60 }
  61
  62 void ButtonFromView::OnPaint(gfx::Canvas* canvas) {
  63   View::OnPaint(canvas);
  64   if (HasFocus()) {
  65     gfx::Rect rect(GetLocalBounds());
  66     rect.Inset(tab_frame_inset_);
  67     canvas->DrawSolidFocusRect(rect, kFocusBorderColor);
  68   }
  69 }
  70
  71 void ButtonFromView::OnFocus() {
  72   View::OnFocus();
  73   // Adding focus frame.
  74   SchedulePaint();
  75 }
  76
  77 void ButtonFromView::OnBlur() {
  78   View::OnBlur();
  79   // Removing focus frame.
  80   SchedulePaint();
  81 }
  82
  83 void ButtonFromView::ShowActive() {
  84   bool border_visible =
  85       (button_hovered_ && highlight_on_hover_) || show_border_;
  86   SkColor border_color = border_visible ? kBorderColor : SK_ColorTRANSPARENT;
  87   SetBorder(views::Border::CreateSolidBorder(1, border_color));
  88   if (highlight_on_hover_) {
  89     SkColor background_color =
  90         button_hovered_ ? kHoverBackgroundColor : kBackgroundColor;
  91     content_->set_background(
  92         views::Background::CreateSolidBackground(background_color));
  93     set_background(views::Background::CreateSolidBackground(background_color));
  94   }
  95   SchedulePaint();
  96 }
  97
  98 }  // namespace tray
  99 }  // namespace ash