ui/app_list/views/search_result_tile_item_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 "ui/app_list/views/search_result_tile_item_view.h"
   6
   7 #include "ui/app_list/search_result.h"
   8 #include "ui/views/controls/menu/menu_runner.h"
   9
  10 namespace app_list {
  11
  12 SearchResultTileItemView::SearchResultTileItemView() : item_(NULL) {
  13   // When |item_| is null, the tile is invisible. Calling SetSearchResult with a
  14   // non-null item makes the tile visible.
  15   SetVisible(false);
  16
  17   set_context_menu_controller(this);
  18 }
  19
  20 SearchResultTileItemView::~SearchResultTileItemView() {
  21   if (item_)
  22     item_->RemoveObserver(this);
  23 }
  24
  25 void SearchResultTileItemView::SetSearchResult(SearchResult* item) {
  26   SetVisible(item != NULL);
  27
  28   SearchResult* old_item = item_;
  29   if (old_item)
  30     old_item->RemoveObserver(this);
  31
  32   item_ = item;
  33
  34   if (!item)
  35     return;
  36
  37   item_->AddObserver(this);
  38
  39   SetTitle(item_->title());
  40
  41   // Only refresh the icon if it's different from the old one. This prevents
  42   // flickering.
  43   if (old_item == NULL ||
  44       !item->icon().BackedBySameObjectAs(old_item->icon())) {
  45     OnIconChanged();
  46   }
  47 }
  48
  49 void SearchResultTileItemView::ButtonPressed(views::Button* sender,
  50                                              const ui::Event& event) {
  51   item_->Open(event.flags());
  52 }
  53
  54 bool SearchResultTileItemView::OnKeyPressed(const ui::KeyEvent& event) {
  55   if (event.key_code() == ui::VKEY_RETURN) {
  56     item_->Open(event.flags());
  57     return true;
  58   }
  59
  60   return false;
  61 }
  62
  63 void SearchResultTileItemView::OnIconChanged() {
  64   SetIcon(item_->icon());
  65 }
  66
  67 void SearchResultTileItemView::OnResultDestroying() {
  68   if (item_)
  69     item_->RemoveObserver(this);
  70   item_ = NULL;
  71 }
  72
  73 void SearchResultTileItemView::ShowContextMenuForView(
  74     views::View* source,
  75     const gfx::Point& point,
  76     ui::MenuSourceType source_type) {
  77   // |item_| could be null when result list is changing.
  78   if (!item_)
  79     return;
  80
  81   ui::MenuModel* menu_model = item_->GetContextMenuModel();
  82   if (!menu_model)
  83     return;
  84
  85   context_menu_runner_.reset(
  86       new views::MenuRunner(menu_model, views::MenuRunner::HAS_MNEMONICS));
  87   // If RunMenuAt() fails, return immediately. This is future-proofing for
  88   // adding code after this call.
  89   if (context_menu_runner_->RunMenuAt(
  90           GetWidget(), nullptr, gfx::Rect(point, gfx::Size()),
  91           views::MENU_ANCHOR_TOPLEFT,
  92           source_type) == views::MenuRunner::MENU_DELETED)
  93     return;
  94 }
  95
  96 }  // namespace app_list