media player: list management.

media/player/list.h

+// Copyright (c) 2009 The Chromium Authors. All rights reserved.  Use of this
+// source code is governed by a BSD-style license that can be found in the
+// LICENSE file.
+
+// list.h : class for Recent Files list
+
+#ifndef MEDIA_PLAYER_LIST_H_
+#define MEDIA_PLAYER_LIST_H_
+
+class CMruList : public CWindowImpl<CMruList, CListBox> {
+ public:
+
+  CMruList() {
+    m_size.cx = 400;
+    m_size.cy = 150;
+  }
+
+  HWND Create(HWND hWndParent) {
+    CWindowImpl<CMruList, CListBox>::Create(hWndParent, rcDefault, NULL,
+      WS_POPUP | WS_THICKFRAME | WS_CLIPCHILDREN | WS_CLIPSIBLINGS |
+      WS_VSCROLL | LBS_NOINTEGRALHEIGHT,
+      WS_EX_CLIENTEDGE);
+    if (IsWindow())
+      SetFont(AtlGetStockFont(DEFAULT_GUI_FONT));
+    return m_hWnd;
+  }
+
+  BOOL BuildList(CRecentDocumentList& mru) {
+    ATLASSERT(IsWindow());
+
+    ResetContent();
+
+    int nSize = mru.m_arrDocs.GetSize();
+    for (int i = 0; i < nSize; i++)
+      InsertString(0, mru.m_arrDocs[i].szDocName);  // Reverse order in array.
+
+    if (nSize > 0) {
+      SetCurSel(0);
+      SetTopIndex(0);
+    }
+
+    return TRUE;
+  }
+
+  BOOL ShowList(int x, int y) {
+    return SetWindowPos(NULL, x, y, m_size.cx, m_size.cy,
+                        SWP_NOZORDER | SWP_SHOWWINDOW);
+  }
+
+  void HideList() {
+    RECT rect;
+    GetWindowRect(&rect);
+    m_size.cx = rect.right - rect.left;
+    m_size.cy = rect.bottom - rect.top;
+    ShowWindow(SW_HIDE);
+  }
+
+  void FireCommand() {
+    int nSel = GetCurSel();
+    if (nSel != LB_ERR) {
+      ::SetFocus(GetParent());  // Will hide this window.
+      ::SendMessage(GetParent(), WM_COMMAND,
+                    MAKEWPARAM((WORD)(ID_FILE_MRU_FIRST + nSel),
+                               LBN_DBLCLK), (LPARAM)m_hWnd);
+    }
+  }
+
+  BEGIN_MSG_MAP(CMruList)
+    MESSAGE_HANDLER(WM_KEYDOWN, OnKeyDown)
+    MESSAGE_HANDLER(WM_LBUTTONDBLCLK, OnLButtonDblClk)
+    MESSAGE_HANDLER(WM_KILLFOCUS, OnKillFocus)
+    MESSAGE_HANDLER(WM_NCHITTEST, OnNcHitTest)
+  END_MSG_MAP()
+
+  LRESULT OnKeyDown(UINT /*uMsg*/,
+                    WPARAM wParam,
+                    LPARAM /*lParam*/,
+                    BOOL& bHandled) {
+    if (wParam == VK_RETURN)
+      FireCommand();
+    else
+      bHandled = FALSE;
+    return 0;
+  }
+
+  LRESULT OnLButtonDblClk(UINT /*uMsg*/,
+                          WPARAM /*wParam*/,
+                          LPARAM /*lParam*/,
+                          BOOL& /*bHandled*/) {
+    FireCommand();
+    return 0;
+  }
+
+  LRESULT OnKillFocus(UINT /*uMsg*/,
+                      WPARAM /*wParam*/,
+                      LPARAM /*lParam*/,
+                      BOOL& /*bHandled*/) {
+    HideList();
+    return 0;
+  }
+
+  LRESULT OnNcHitTest(UINT uMsg,
+                      WPARAM wParam,
+                      LPARAM lParam,
+                      BOOL& /*bHandled*/) {
+    LRESULT lRet = DefWindowProc(uMsg, wParam, lParam);
+    switch (lRet) {
+      case HTLEFT:
+      case HTTOP:
+      case HTTOPLEFT:
+      case HTTOPRIGHT:
+      case HTBOTTOMLEFT:
+        lRet = HTCLIENT;  // Don't allow resizing here.
+        break;
+      default:
+        break;
+    }
+    return lRet;
+  }
+
+ private:
+
+  SIZE m_size;
+};
+
+#endif  // MEDIA_PLAYER_LIST_H_
+