layout/xul/nsMenuBarFrame.h@7e26c7da4463 (annotated)
layout/xul/nsMenuBarFrame.h
Wed, 31 Dec 2014 06:55:50 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:55:50 +0100
- changeset 2
- 7e26c7da4463
- permissions
- -rw-r--r--
Added tag UPSTREAM_283F7C6 for changeset ca08bd8f51b2
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | // |
| michael@0 | 7 | // nsMenuBarFrame |
| michael@0 | 8 | // |
| michael@0 | 9 | |
| michael@0 | 10 | #ifndef nsMenuBarFrame_h__ |
| michael@0 | 11 | #define nsMenuBarFrame_h__ |
| michael@0 | 12 | |
| michael@0 | 13 | #include "mozilla/Attributes.h" |
| michael@0 | 14 | #include "nsIAtom.h" |
| michael@0 | 15 | #include "nsCOMPtr.h" |
| michael@0 | 16 | #include "nsBoxFrame.h" |
| michael@0 | 17 | #include "nsMenuFrame.h" |
| michael@0 | 18 | #include "nsMenuBarListener.h" |
| michael@0 | 19 | #include "nsMenuParent.h" |
| michael@0 | 20 | |
| michael@0 | 21 | class nsIContent; |
| michael@0 | 22 | |
| michael@0 | 23 | nsIFrame* NS_NewMenuBarFrame(nsIPresShell* aPresShell, nsStyleContext* aContext); |
| michael@0 | 24 | |
| michael@0 | 25 | class nsMenuBarFrame : public nsBoxFrame, public nsMenuParent |
| michael@0 | 26 | { |
| michael@0 | 27 | public: |
| michael@0 | 28 | NS_DECL_QUERYFRAME_TARGET(nsMenuBarFrame) |
| michael@0 | 29 | NS_DECL_QUERYFRAME |
| michael@0 | 30 | NS_DECL_FRAMEARENA_HELPERS |
| michael@0 | 31 | |
| michael@0 | 32 | nsMenuBarFrame(nsIPresShell* aShell, nsStyleContext* aContext); |
| michael@0 | 33 | |
| michael@0 | 34 | // nsMenuParent interface |
| michael@0 | 35 | virtual nsMenuFrame* GetCurrentMenuItem() MOZ_OVERRIDE; |
| michael@0 | 36 | NS_IMETHOD SetCurrentMenuItem(nsMenuFrame* aMenuItem) MOZ_OVERRIDE; |
| michael@0 | 37 | virtual void CurrentMenuIsBeingDestroyed() MOZ_OVERRIDE; |
| michael@0 | 38 | NS_IMETHOD ChangeMenuItem(nsMenuFrame* aMenuItem, bool aSelectFirstItem) MOZ_OVERRIDE; |
| michael@0 | 39 | |
| michael@0 | 40 | NS_IMETHOD SetActive(bool aActiveFlag) MOZ_OVERRIDE; |
| michael@0 | 41 | |
| michael@0 | 42 | virtual bool IsMenuBar() MOZ_OVERRIDE { return true; } |
| michael@0 | 43 | virtual bool IsContextMenu() MOZ_OVERRIDE { return false; } |
| michael@0 | 44 | virtual bool IsActive() MOZ_OVERRIDE { return mIsActive; } |
| michael@0 | 45 | virtual bool IsMenu() MOZ_OVERRIDE { return false; } |
| michael@0 | 46 | virtual bool IsOpen() MOZ_OVERRIDE { return true; } // menubars are considered always open |
| michael@0 | 47 | |
| michael@0 | 48 | bool IsMenuOpen() { return mCurrentMenu && mCurrentMenu->IsOpen(); } |
| michael@0 | 49 | |
| michael@0 | 50 | void InstallKeyboardNavigator(); |
| michael@0 | 51 | void RemoveKeyboardNavigator(); |
| michael@0 | 52 | |
| michael@0 | 53 | virtual void Init(nsIContent* aContent, |
| michael@0 | 54 | nsIFrame* aParent, |
| michael@0 | 55 | nsIFrame* aPrevInFlow) MOZ_OVERRIDE; |
| michael@0 | 56 | |
| michael@0 | 57 | virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE; |
| michael@0 | 58 | |
| michael@0 | 59 | virtual void LockMenuUntilClosed(bool aLock) MOZ_OVERRIDE {} |
| michael@0 | 60 | virtual bool IsMenuLocked() MOZ_OVERRIDE { return false; } |
| michael@0 | 61 | |
| michael@0 | 62 | // Non-interface helpers |
| michael@0 | 63 | |
| michael@0 | 64 | // The 'stay active' flag is set when navigating from one top-level menu |
| michael@0 | 65 | // to another, to prevent the menubar from deactivating and submenus from |
| michael@0 | 66 | // firing extra DOMMenuItemActive events. |
| michael@0 | 67 | bool GetStayActive() { return mStayActive; } |
| michael@0 | 68 | void SetStayActive(bool aStayActive) { mStayActive = aStayActive; } |
| michael@0 | 69 | |
| michael@0 | 70 | // Called when a menu on the menu bar is clicked on. Returns a menu if one |
| michael@0 | 71 | // needs to be closed. |
| michael@0 | 72 | nsMenuFrame* ToggleMenuActiveState(); |
| michael@0 | 73 | |
| michael@0 | 74 | bool IsActiveByKeyboard() { return mActiveByKeyboard; } |
| michael@0 | 75 | void SetActiveByKeyboard() { mActiveByKeyboard = true; } |
| michael@0 | 76 | |
| michael@0 | 77 | // indicate that a menu on the menubar was closed. Returns true if the caller |
| michael@0 | 78 | // may deselect the menuitem. |
| michael@0 | 79 | virtual bool MenuClosed() MOZ_OVERRIDE; |
| michael@0 | 80 | |
| michael@0 | 81 | // Called when Enter is pressed while the menubar is focused. If the current |
| michael@0 | 82 | // menu is open, let the child handle the key. |
| michael@0 | 83 | nsMenuFrame* Enter(mozilla::WidgetGUIEvent* aEvent); |
| michael@0 | 84 | |
| michael@0 | 85 | // Used to handle ALT+key combos |
| michael@0 | 86 | nsMenuFrame* FindMenuWithShortcut(nsIDOMKeyEvent* aKeyEvent); |
| michael@0 | 87 | |
| michael@0 | 88 | virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE |
| michael@0 | 89 | { |
| michael@0 | 90 | // Override bogus IsFrameOfType in nsBoxFrame. |
| michael@0 | 91 | if (aFlags & (nsIFrame::eReplacedContainsBlock | nsIFrame::eReplaced)) |
| michael@0 | 92 | return false; |
| michael@0 | 93 | return nsBoxFrame::IsFrameOfType(aFlags); |
| michael@0 | 94 | } |
| michael@0 | 95 | |
| michael@0 | 96 | #ifdef DEBUG_FRAME_DUMP |
| michael@0 | 97 | virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE |
| michael@0 | 98 | { |
| michael@0 | 99 | return MakeFrameName(NS_LITERAL_STRING("MenuBar"), aResult); |
| michael@0 | 100 | } |
| michael@0 | 101 | #endif |
| michael@0 | 102 | |
| michael@0 | 103 | protected: |
| michael@0 | 104 | nsMenuBarListener* mMenuBarListener; // The listener that tells us about key and mouse events. |
| michael@0 | 105 | |
| michael@0 | 106 | // flag that is temporarily set when switching from one menu on the menubar to another |
| michael@0 | 107 | // to indicate that the menubar should not be deactivated. |
| michael@0 | 108 | bool mStayActive; |
| michael@0 | 109 | |
| michael@0 | 110 | bool mIsActive; // Whether or not the menu bar is active (a menu item is highlighted or shown). |
| michael@0 | 111 | |
| michael@0 | 112 | // whether the menubar was made active via the keyboard. |
| michael@0 | 113 | bool mActiveByKeyboard; |
| michael@0 | 114 | |
| michael@0 | 115 | // The current menu that is active (highlighted), which may not be open. This will |
| michael@0 | 116 | // be null if no menu is active. |
| michael@0 | 117 | nsMenuFrame* mCurrentMenu; |
| michael@0 | 118 | |
| michael@0 | 119 | mozilla::dom::EventTarget* mTarget; |
| michael@0 | 120 | |
| michael@0 | 121 | }; // class nsMenuBarFrame |
| michael@0 | 122 | |
| michael@0 | 123 | #endif |
