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Diffstat (limited to 'chrome/views/controls/menu/menu.cc')
| -rw-r--r-- | chrome/views/controls/menu/menu.cc | 626 |
1 files changed, 0 insertions, 626 deletions
diff --git a/chrome/views/controls/menu/menu.cc b/chrome/views/controls/menu/menu.cc deleted file mode 100644 index 09ebe8d..0000000 --- a/chrome/views/controls/menu/menu.cc +++ /dev/null @@ -1,626 +0,0 @@ -// Copyright (c) 2006-2008 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. - -#include "chrome/views/controls/menu/menu.h" - -#include <atlbase.h> -#include <atlapp.h> -#include <atlwin.h> -#include <atlcrack.h> -#include <atlframe.h> -#include <atlmisc.h> -#include <string> - -#include "app/gfx/chrome_canvas.h" -#include "app/gfx/chrome_font.h" -#include "app/l10n_util.h" -#include "app/l10n_util_win.h" -#include "base/gfx/rect.h" -#include "base/logging.h" -#include "base/stl_util-inl.h" -#include "base/string_util.h" -#include "chrome/views/accelerator.h" - -const SkBitmap* Menu::Delegate::kEmptyIcon = 0; - -// The width of an icon, including the pixels between the icon and -// the item label. -static const int kIconWidth = 23; -// Margins between the top of the item and the label. -static const int kItemTopMargin = 3; -// Margins between the bottom of the item and the label. -static const int kItemBottomMargin = 4; -// Margins between the left of the item and the icon. -static const int kItemLeftMargin = 4; -// Margins between the right of the item and the label. -static const int kItemRightMargin = 10; -// The width for displaying the sub-menu arrow. -static const int kArrowWidth = 10; - -// Current active MenuHostWindow. If NULL, no menu is active. -static MenuHostWindow* active_host_window = NULL; - -// The data of menu items needed to display. -struct Menu::ItemData { - std::wstring label; - SkBitmap icon; - bool submenu; -}; - -namespace { - -static int ChromeGetMenuItemID(HMENU hMenu, int pos) { - // The built-in Windows ::GetMenuItemID doesn't work for submenus, - // so here's our own implementation. - MENUITEMINFO mii = {0}; - mii.cbSize = sizeof(mii); - mii.fMask = MIIM_ID; - GetMenuItemInfo(hMenu, pos, TRUE, &mii); - return mii.wID; -} - -// MenuHostWindow ------------------------------------------------------------- - -// MenuHostWindow is the HWND the HMENU is parented to. MenuHostWindow is used -// to intercept right clicks on the HMENU and notify the delegate as well as -// for drawing icons. -// -class MenuHostWindow : public CWindowImpl<MenuHostWindow, CWindow, - CWinTraits<WS_CHILD>> { - public: - MenuHostWindow(Menu* menu, HWND parent_window) : menu_(menu) { - int extended_style = 0; - // If the menu needs to be created with a right-to-left UI layout, we must - // set the appropriate RTL flags (such as WS_EX_LAYOUTRTL) property for the - // underlying HWND. - if (menu_->delegate_->IsRightToLeftUILayout()) - extended_style |= l10n_util::GetExtendedStyles(); - Create(parent_window, gfx::Rect().ToRECT(), 0, 0, extended_style); - } - - ~MenuHostWindow() { - DestroyWindow(); - } - - DECLARE_FRAME_WND_CLASS(L"MenuHostWindow", NULL); - BEGIN_MSG_MAP(MenuHostWindow); - MSG_WM_RBUTTONUP(OnRButtonUp) - MSG_WM_MEASUREITEM(OnMeasureItem) - MSG_WM_DRAWITEM(OnDrawItem) - END_MSG_MAP(); - - private: - // NOTE: I really REALLY tried to use WM_MENURBUTTONUP, but I ran into - // two problems in using it: - // 1. It doesn't contain the coordinates of the mouse. - // 2. It isn't invoked for menuitems representing a submenu that have children - // menu items (not empty). - - void OnRButtonUp(UINT w_param, const CPoint& loc) { - int id; - if (menu_->delegate_ && FindMenuIDByLocation(menu_, loc, &id)) - menu_->delegate_->ShowContextMenu(menu_, id, loc.x, loc.y, true); - } - - void OnMeasureItem(WPARAM w_param, MEASUREITEMSTRUCT* lpmis) { - Menu::ItemData* data = reinterpret_cast<Menu::ItemData*>(lpmis->itemData); - if (data != NULL) { - ChromeFont font; - lpmis->itemWidth = font.GetStringWidth(data->label) + kIconWidth + - kItemLeftMargin + kItemRightMargin - - GetSystemMetrics(SM_CXMENUCHECK); - if (data->submenu) - lpmis->itemWidth += kArrowWidth; - // If the label contains an accelerator, make room for tab. - if (data->label.find(L'\t') != std::wstring::npos) - lpmis->itemWidth += font.GetStringWidth(L" "); - lpmis->itemHeight = font.height() + kItemBottomMargin + kItemTopMargin; - } else { - // Measure separator size. - lpmis->itemHeight = GetSystemMetrics(SM_CYMENU) / 2; - lpmis->itemWidth = 0; - } - } - - void OnDrawItem(UINT wParam, DRAWITEMSTRUCT* lpdis) { - HDC hDC = lpdis->hDC; - COLORREF prev_bg_color, prev_text_color; - - // Set background color and text color - if (lpdis->itemState & ODS_SELECTED) { - prev_bg_color = SetBkColor(hDC, GetSysColor(COLOR_HIGHLIGHT)); - prev_text_color = SetTextColor(hDC, GetSysColor(COLOR_HIGHLIGHTTEXT)); - } else { - prev_bg_color = SetBkColor(hDC, GetSysColor(COLOR_MENU)); - if (lpdis->itemState & ODS_DISABLED) - prev_text_color = SetTextColor(hDC, GetSysColor(COLOR_GRAYTEXT)); - else - prev_text_color = SetTextColor(hDC, GetSysColor(COLOR_MENUTEXT)); - } - - if (lpdis->itemData) { - Menu::ItemData* data = - reinterpret_cast<Menu::ItemData*>(lpdis->itemData); - - // Draw the background. - HBRUSH hbr = CreateSolidBrush(GetBkColor(hDC)); - FillRect(hDC, &lpdis->rcItem, hbr); - DeleteObject(hbr); - - // Draw the label. - RECT rect = lpdis->rcItem; - rect.top += kItemTopMargin; - // Should we add kIconWidth only when icon.width() != 0 ? - rect.left += kItemLeftMargin + kIconWidth; - rect.right -= kItemRightMargin; - UINT format = DT_TOP | DT_SINGLELINE; - // Check whether the mnemonics should be underlined. - BOOL underline_mnemonics; - SystemParametersInfo(SPI_GETKEYBOARDCUES, 0, &underline_mnemonics, 0); - if (!underline_mnemonics) - format |= DT_HIDEPREFIX; - ChromeFont font; - HGDIOBJ old_font = static_cast<HFONT>(SelectObject(hDC, font.hfont())); - int fontsize = font.FontSize(); - - // If an accelerator is specified (with a tab delimiting the rest of the - // label from the accelerator), we have to justify the fist part on the - // left and the accelerator on the right. - // TODO(jungshik): This will break in RTL UI. Currently, he/ar use the - // window system UI font and will not hit here. - std::wstring label = data->label; - std::wstring accel; - std::wstring::size_type tab_pos = label.find(L'\t'); - if (tab_pos != std::wstring::npos) { - accel = label.substr(tab_pos); - label = label.substr(0, tab_pos); - } - DrawTextEx(hDC, const_cast<wchar_t*>(label.data()), - static_cast<int>(label.size()), &rect, format | DT_LEFT, NULL); - if (!accel.empty()) - DrawTextEx(hDC, const_cast<wchar_t*>(accel.data()), - static_cast<int>(accel.size()), &rect, - format | DT_RIGHT, NULL); - SelectObject(hDC, old_font); - - // Draw the icon after the label, otherwise it would be covered - // by the label. - if (data->icon.width() != 0 && data->icon.height() != 0) { - ChromeCanvas canvas(data->icon.width(), data->icon.height(), false); - canvas.drawColor(SK_ColorBLACK, SkPorterDuff::kClear_Mode); - canvas.DrawBitmapInt(data->icon, 0, 0); - canvas.getTopPlatformDevice().drawToHDC(hDC, lpdis->rcItem.left + - kItemLeftMargin, lpdis->rcItem.top + (lpdis->rcItem.bottom - - lpdis->rcItem.top - data->icon.height()) / 2, NULL); - } - - } else { - // Draw the separator - lpdis->rcItem.top += (lpdis->rcItem.bottom - lpdis->rcItem.top) / 3; - DrawEdge(hDC, &lpdis->rcItem, EDGE_ETCHED, BF_TOP); - } - - SetBkColor(hDC, prev_bg_color); - SetTextColor(hDC, prev_text_color); - } - - bool FindMenuIDByLocation(Menu* menu, const CPoint& loc, int* id) { - int index = MenuItemFromPoint(NULL, menu->menu_, loc); - if (index != -1) { - *id = ChromeGetMenuItemID(menu->menu_, index); - return true; - } else { - for (std::vector<Menu*>::iterator i = menu->submenus_.begin(); - i != menu->submenus_.end(); ++i) { - if (FindMenuIDByLocation(*i, loc, id)) - return true; - } - } - return false; - } - - // The menu that created us. - Menu* menu_; - - DISALLOW_EVIL_CONSTRUCTORS(MenuHostWindow); -}; - -} // namespace - -bool Menu::Delegate::IsRightToLeftUILayout() const { - return l10n_util::GetTextDirection() == l10n_util::RIGHT_TO_LEFT; -} - -const SkBitmap& Menu::Delegate::GetEmptyIcon() const { - if (kEmptyIcon == NULL) - kEmptyIcon = new SkBitmap(); - return *kEmptyIcon; -} - -Menu::Menu(Delegate* delegate, AnchorPoint anchor, HWND owner) - : delegate_(delegate), - menu_(CreatePopupMenu()), - anchor_(anchor), - owner_(owner), - is_menu_visible_(false), - owner_draw_(l10n_util::NeedOverrideDefaultUIFont(NULL, NULL)) { - DCHECK(delegate_); -} - -Menu::Menu(Menu* parent) - : delegate_(parent->delegate_), - menu_(CreatePopupMenu()), - anchor_(parent->anchor_), - owner_(parent->owner_), - is_menu_visible_(false), - owner_draw_(parent->owner_draw_) { -} - -Menu::Menu(HMENU hmenu) - : delegate_(NULL), - menu_(hmenu), - anchor_(TOPLEFT), - owner_(NULL), - is_menu_visible_(false), - owner_draw_(false) { - DCHECK(menu_); -} - -Menu::~Menu() { - STLDeleteContainerPointers(submenus_.begin(), submenus_.end()); - STLDeleteContainerPointers(item_data_.begin(), item_data_.end()); - DestroyMenu(menu_); -} - -UINT Menu::GetStateFlagsForItemID(int item_id) const { - // Use the delegate to get enabled and checked state. - UINT flags = - delegate_->IsCommandEnabled(item_id) ? MFS_ENABLED : MFS_DISABLED; - - if (delegate_->IsItemChecked(item_id)) - flags |= MFS_CHECKED; - - if (delegate_->IsItemDefault(item_id)) - flags |= MFS_DEFAULT; - - return flags; -} - -void Menu::AddMenuItemInternal(int index, - int item_id, - const std::wstring& label, - const SkBitmap& icon, - HMENU submenu, - MenuItemType type) { - DCHECK(type != SEPARATOR) << "Call AddSeparator instead!"; - - if (label.empty() && !delegate_) { - // No label and no delegate; don't add an empty menu. - // It appears under some circumstance we're getting an empty label - // (l10n_util::GetString(IDS_TASK_MANAGER) returns ""). This shouldn't - // happen, but I'm working over the crash here. - NOTREACHED(); - return; - } - - MENUITEMINFO mii; - mii.cbSize = sizeof(mii); - mii.fMask = MIIM_FTYPE | MIIM_ID; - if (submenu) { - mii.fMask |= MIIM_SUBMENU; - mii.hSubMenu = submenu; - } - - // Set the type and ID. - if (!owner_draw_) { - mii.fType = MFT_STRING; - mii.fMask |= MIIM_STRING; - } else { - mii.fType = MFT_OWNERDRAW; - } - - if (type == RADIO) - mii.fType |= MFT_RADIOCHECK; - - mii.wID = item_id; - - // Set the item data. - Menu::ItemData* data = new ItemData; - item_data_.push_back(data); - data->submenu = submenu != NULL; - - std::wstring actual_label(label.empty() ? - delegate_->GetLabel(item_id) : label); - - // Find out if there is a shortcut we need to append to the label. - views::Accelerator accelerator(0, false, false, false); - if (delegate_ && delegate_->GetAcceleratorInfo(item_id, &accelerator)) { - actual_label += L'\t'; - actual_label += accelerator.GetShortcutText(); - } - labels_.push_back(actual_label); - - if (owner_draw_) { - if (icon.width() != 0 && icon.height() != 0) - data->icon = icon; - else - data->icon = delegate_->GetIcon(item_id); - } else { - mii.dwTypeData = const_cast<wchar_t*>(labels_.back().c_str()); - } - - InsertMenuItem(menu_, index, TRUE, &mii); -} - -void Menu::AppendMenuItem(int item_id, - const std::wstring& label, - MenuItemType type) { - AddMenuItem(-1, item_id, label, type); -} - -void Menu::AddMenuItem(int index, - int item_id, - const std::wstring& label, - MenuItemType type) { - if (type == SEPARATOR) - AddSeparator(index); - else - AddMenuItemInternal(index, item_id, label, SkBitmap(), NULL, type); -} - -Menu* Menu::AppendSubMenu(int item_id, const std::wstring& label) { - return AddSubMenu(-1, item_id, label); -} - -Menu* Menu::AddSubMenu(int index, int item_id, const std::wstring& label) { - return AddSubMenuWithIcon(index, item_id, label, SkBitmap()); -} - -Menu* Menu::AppendSubMenuWithIcon(int item_id, - const std::wstring& label, - const SkBitmap& icon) { - return AddSubMenuWithIcon(-1, item_id, label, icon); -} - -Menu* Menu::AddSubMenuWithIcon(int index, - int item_id, - const std::wstring& label, - const SkBitmap& icon) { - if (!owner_draw_ && icon.width() != 0 && icon.height() != 0) - owner_draw_ = true; - - Menu* submenu = new Menu(this); - submenus_.push_back(submenu); - AddMenuItemInternal(index, item_id, label, icon, submenu->menu_, NORMAL); - return submenu; -} - -void Menu::AppendMenuItemWithLabel(int item_id, const std::wstring& label) { - AddMenuItemWithLabel(-1, item_id, label); -} - -void Menu::AddMenuItemWithLabel(int index, int item_id, - const std::wstring& label) { - AddMenuItem(index, item_id, label, Menu::NORMAL); -} - -void Menu::AppendDelegateMenuItem(int item_id) { - AddDelegateMenuItem(-1, item_id); -} - -void Menu::AddDelegateMenuItem(int index, int item_id) { - AddMenuItem(index, item_id, std::wstring(), Menu::NORMAL); -} - -void Menu::AppendSeparator() { - AddSeparator(-1); -} - -void Menu::AddSeparator(int index) { - MENUITEMINFO mii; - mii.cbSize = sizeof(mii); - mii.fMask = MIIM_FTYPE; - mii.fType = MFT_SEPARATOR; - InsertMenuItem(menu_, index, TRUE, &mii); -} - -void Menu::AppendMenuItemWithIcon(int item_id, - const std::wstring& label, - const SkBitmap& icon) { - AddMenuItemWithIcon(-1, item_id, label, icon); -} - -void Menu::AddMenuItemWithIcon(int index, - int item_id, - const std::wstring& label, - const SkBitmap& icon) { - if (!owner_draw_) - owner_draw_ = true; - AddMenuItemInternal(index, item_id, label, icon, NULL, Menu::NORMAL); -} - -void Menu::EnableMenuItemByID(int item_id, bool enabled) { - UINT enable_flags = enabled ? MF_ENABLED : MF_DISABLED | MF_GRAYED; - EnableMenuItem(menu_, item_id, MF_BYCOMMAND | enable_flags); -} - -void Menu::EnableMenuItemAt(int index, bool enabled) { - UINT enable_flags = enabled ? MF_ENABLED : MF_DISABLED | MF_GRAYED; - EnableMenuItem(menu_, index, MF_BYPOSITION | enable_flags); -} - -void Menu::SetMenuLabel(int item_id, const std::wstring& label) { - MENUITEMINFO mii = {0}; - mii.cbSize = sizeof(mii); - mii.fMask = MIIM_STRING; - mii.dwTypeData = const_cast<wchar_t*>(label.c_str()); - mii.cch = static_cast<UINT>(label.size()); - SetMenuItemInfo(menu_, item_id, false, &mii); -} - -DWORD Menu::GetTPMAlignFlags() const { - // The manner in which we handle the menu alignment depends on whether or not - // the menu is displayed within a mirrored view. If the UI is mirrored, the - // alignment needs to be fliped so that instead of aligning the menu to the - // right of the point, we align it to the left and vice versa. - DWORD align_flags = TPM_TOPALIGN; - switch (anchor_) { - case TOPLEFT: - if (delegate_->IsRightToLeftUILayout()) { - align_flags |= TPM_RIGHTALIGN; - } else { - align_flags |= TPM_LEFTALIGN; - } - break; - - case TOPRIGHT: - if (delegate_->IsRightToLeftUILayout()) { - align_flags |= TPM_LEFTALIGN; - } else { - align_flags |= TPM_RIGHTALIGN; - } - break; - - default: - NOTREACHED(); - return 0; - } - return align_flags; -} - -bool Menu::SetIcon(const SkBitmap& icon, int item_id) { - if (!owner_draw_) - owner_draw_ = true; - - const int num_items = GetMenuItemCount(menu_); - int sep_count = 0; - for (int i = 0; i < num_items; ++i) { - if (!(GetMenuState(menu_, i, MF_BYPOSITION) & MF_SEPARATOR)) { - if (ChromeGetMenuItemID(menu_, i) == item_id) { - item_data_[i - sep_count]->icon = icon; - // When the menu is running, we use SetMenuItemInfo to let Windows - // update the item information so that the icon being displayed - // could change immediately. - if (active_host_window) { - MENUITEMINFO mii; - mii.cbSize = sizeof(mii); - mii.fMask = MIIM_FTYPE | MIIM_DATA; - mii.fType = MFT_OWNERDRAW; - mii.dwItemData = - reinterpret_cast<ULONG_PTR>(item_data_[i - sep_count]); - SetMenuItemInfo(menu_, item_id, false, &mii); - } - return true; - } - } else { - ++sep_count; - } - } - - // Continue searching for the item in submenus. - for (size_t i = 0; i < submenus_.size(); ++i) { - if (submenus_[i]->SetIcon(icon, item_id)) - return true; - } - - return false; -} - -void Menu::SetMenuInfo() { - const int num_items = GetMenuItemCount(menu_); - int sep_count = 0; - for (int i = 0; i < num_items; ++i) { - MENUITEMINFO mii_info; - mii_info.cbSize = sizeof(mii_info); - // Get the menu's original type. - mii_info.fMask = MIIM_FTYPE; - GetMenuItemInfo(menu_, i, MF_BYPOSITION, &mii_info); - // Set item states. - if (!(mii_info.fType & MF_SEPARATOR)) { - const int id = ChromeGetMenuItemID(menu_, i); - - MENUITEMINFO mii; - mii.cbSize = sizeof(mii); - mii.fMask = MIIM_STATE | MIIM_FTYPE | MIIM_DATA | MIIM_STRING; - // We also need MFT_STRING for owner drawn items in order to let Windows - // handle the accelerators for us. - mii.fType = MFT_STRING; - if (owner_draw_) - mii.fType |= MFT_OWNERDRAW; - // If the menu originally has radiocheck type, we should follow it. - if (mii_info.fType & MFT_RADIOCHECK) - mii.fType |= MFT_RADIOCHECK; - mii.fState = GetStateFlagsForItemID(id); - - // Validate the label. If there is a contextual label, use it, otherwise - // default to the static label - std::wstring label; - if (!delegate_->GetContextualLabel(id, &label)) - label = labels_[i - sep_count]; - - if (owner_draw_) { - item_data_[i - sep_count]->label = label; - mii.dwItemData = reinterpret_cast<ULONG_PTR>(item_data_[i - sep_count]); - } - mii.dwTypeData = const_cast<wchar_t*>(label.c_str()); - mii.cch = static_cast<UINT>(label.size()); - SetMenuItemInfo(menu_, i, true, &mii); - } else { - // Set data for owner drawn separators. Set dwItemData NULL to indicate - // a separator. - if (owner_draw_) { - MENUITEMINFO mii; - mii.cbSize = sizeof(mii); - mii.fMask = MIIM_FTYPE; - mii.fType = MFT_SEPARATOR | MFT_OWNERDRAW; - mii.dwItemData = NULL; - SetMenuItemInfo(menu_, i, true, &mii); - } - ++sep_count; - } - } - - for (size_t i = 0; i < submenus_.size(); ++i) - submenus_[i]->SetMenuInfo(); -} - -void Menu::RunMenuAt(int x, int y) { - SetMenuInfo(); - - delegate_->MenuWillShow(); - - // NOTE: we don't use TPM_RIGHTBUTTON here as it breaks selecting by way of - // press, drag, release. See bugs 718 and 8560. - UINT flags = - GetTPMAlignFlags() | TPM_LEFTBUTTON | TPM_RETURNCMD | TPM_RECURSE; - is_menu_visible_ = true; - DCHECK(owner_); - // In order for context menus on menus to work, the context menu needs to - // share the same window as the first menu is parented to. - bool created_host = false; - if (!active_host_window) { - created_host = true; - active_host_window = new MenuHostWindow(this, owner_); - } - UINT selected_id = - TrackPopupMenuEx(menu_, flags, x, y, active_host_window->m_hWnd, NULL); - if (created_host) { - delete active_host_window; - active_host_window = NULL; - } - is_menu_visible_ = false; - - // Execute the chosen command - if (selected_id != 0) - delegate_->ExecuteCommand(selected_id); -} - -void Menu::Cancel() { - DCHECK(is_menu_visible_); - EndMenu(); -} - -int Menu::ItemCount() { - return GetMenuItemCount(menu_); -} |