src/ui/views/touchui/touch_editing_menu.cc

   1 // Copyright (c) 2013 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 "ui/views/touchui/touch_editing_menu.h"
   6
   7 #include "base/strings/utf_string_conversions.h"
   8 #include "ui/base/l10n/l10n_util.h"
   9 #include "ui/base/resource/resource_bundle.h"
  10 #include "ui/gfx/canvas.h"
  11 #include "ui/gfx/font_list.h"
  12 #include "ui/gfx/insets.h"
  13 #include "ui/gfx/text_utils.h"
  14 #include "ui/strings/grit/ui_strings.h"
  15 #include "ui/views/bubble/bubble_border.h"
  16 #include "ui/views/bubble/bubble_frame_view.h"
  17 #include "ui/views/controls/button/custom_button.h"
  18 #include "ui/views/controls/button/label_button.h"
  19 #include "ui/views/layout/box_layout.h"
  20 #include "ui/views/widget/widget.h"
  21
  22 namespace {
  23
  24 const int kMenuCommands[] = {IDS_APP_CUT,
  25                              IDS_APP_COPY,
  26                              IDS_APP_PASTE};
  27 const int kSpacingBetweenButtons = 2;
  28 const int kButtonSeparatorColor = SkColorSetARGB(13, 0, 0, 0);
  29 const int kMenuButtonMinHeight = 38;
  30 const int kMenuButtonMinWidth = 63;
  31 const int kMenuMargin = 1;
  32
  33 const char* kEllipsesButtonText = "...";
  34 const int kEllipsesButtonTag = -1;
  35 }  // namespace
  36
  37 namespace views {
  38
  39 TouchEditingMenuView::TouchEditingMenuView(
  40     TouchEditingMenuController* controller,
  41     const gfx::Rect& anchor_rect,
  42     const gfx::Size& handle_image_size,
  43     gfx::NativeView context)
  44     : BubbleDelegateView(NULL, views::BubbleBorder::BOTTOM_CENTER),
  45       controller_(controller) {
  46   set_shadow(views::BubbleBorder::SMALL_SHADOW);
  47   set_parent_window(context);
  48   set_margins(gfx::Insets(kMenuMargin, kMenuMargin, kMenuMargin, kMenuMargin));
  49   set_can_activate(false);
  50   set_adjust_if_offscreen(true);
  51
  52   SetLayoutManager(new BoxLayout(BoxLayout::kHorizontal, 0, 0,
  53       kSpacingBetweenButtons));
  54   CreateButtons();
  55
  56   // After buttons are created, check if there is enough room between handles to
  57   // show the menu and adjust anchor rect properly if needed, just in case the
  58   // menu is needed to be shown under the selection.
  59   gfx::Rect adjusted_anchor_rect(anchor_rect);
  60   int menu_width = GetPreferredSize().width();
  61   if (menu_width > anchor_rect.width() - handle_image_size.width())
  62     adjusted_anchor_rect.Inset(0, 0, 0, -handle_image_size.height());
  63   SetAnchorRect(adjusted_anchor_rect);
  64
  65   views::BubbleDelegateView::CreateBubble(this);
  66   GetWidget()->Show();
  67 }
  68
  69 TouchEditingMenuView::~TouchEditingMenuView() {
  70 }
  71
  72 // static
  73 TouchEditingMenuView* TouchEditingMenuView::Create(
  74     TouchEditingMenuController* controller,
  75     const gfx::Rect& anchor_rect,
  76     const gfx::Size& handle_image_size,
  77     gfx::NativeView context) {
  78   if (controller) {
  79     for (size_t i = 0; i < arraysize(kMenuCommands); i++) {
  80       if (controller->IsCommandIdEnabled(kMenuCommands[i])) {
  81         return new TouchEditingMenuView(controller, anchor_rect,
  82                                         handle_image_size, context);
  83       }
  84     }
  85   }
  86   return NULL;
  87 }
  88
  89 void TouchEditingMenuView::Close() {
  90   if (GetWidget()) {
  91     controller_ = NULL;
  92     GetWidget()->Close();
  93   }
  94 }
  95
  96 void TouchEditingMenuView::WindowClosing() {
  97   views::BubbleDelegateView::WindowClosing();
  98   if (controller_)
  99     controller_->OnMenuClosed(this);
 100 }
 101
 102 void TouchEditingMenuView::ButtonPressed(Button* sender,
 103                                          const ui::Event& event) {
 104   if (controller_) {
 105     if (sender->tag() != kEllipsesButtonTag)
 106       controller_->ExecuteCommand(sender->tag(), event.flags());
 107     else
 108       controller_->OpenContextMenu();
 109   }
 110 }
 111
 112 void TouchEditingMenuView::OnPaint(gfx::Canvas* canvas) {
 113   BubbleDelegateView::OnPaint(canvas);
 114
 115   // Draw separator bars.
 116   for (int i = 0; i < child_count() - 1; ++i) {
 117     View* child = child_at(i);
 118     int x = child->bounds().right() + kSpacingBetweenButtons / 2;
 119     canvas->FillRect(gfx::Rect(x, 0, 1, child->height()),
 120         kButtonSeparatorColor);
 121   }
 122 }
 123
 124 void TouchEditingMenuView::CreateButtons() {
 125   RemoveAllChildViews(true);
 126   for (size_t i = 0; i < arraysize(kMenuCommands); i++) {
 127     int command_id = kMenuCommands[i];
 128     if (controller_ && controller_->IsCommandIdEnabled(command_id)) {
 129       Button* button = CreateButton(l10n_util::GetStringUTF16(command_id),
 130           command_id);
 131       AddChildView(button);
 132     }
 133   }
 134
 135   // Finally, add ellipses button.
 136   AddChildView(CreateButton(
 137       base::UTF8ToUTF16(kEllipsesButtonText), kEllipsesButtonTag));
 138   Layout();
 139 }
 140
 141 Button* TouchEditingMenuView::CreateButton(const base::string16& title,
 142                                            int tag) {
 143   base::string16 label = gfx::RemoveAcceleratorChar(title, '&', NULL, NULL);
 144   LabelButton* button = new LabelButton(this, label);
 145   button->SetMinSize(gfx::Size(kMenuButtonMinWidth, kMenuButtonMinHeight));
 146   button->SetFocusable(true);
 147   button->set_request_focus_on_press(false);
 148   const gfx::FontList& font_list =
 149       ui::ResourceBundle::GetSharedInstance().GetFontList(
 150           ui::ResourceBundle::SmallFont);
 151   button->SetFontList(font_list);
 152   button->SetHorizontalAlignment(gfx::ALIGN_CENTER);
 153   button->set_tag(tag);
 154   return button;
 155 }
 156
 157 }  // namespace views