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layout/xul/nsMenuBoxObject.cpp@925c144e1f1f (annotated)

layout/xul/nsMenuBoxObject.cpp

Fri, 16 Jan 2015 18:13:44 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Fri, 16 Jan 2015 18:13:44 +0100

branch

TOR_BUG_9701

changeset 14

925c144e1f1f

permissions

-rw-r--r--

Integrate suggestion from review to improve consistency with existing code.

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	#include "nsISupportsUtils.h"
michael@0	6	#include "nsIMenuBoxObject.h"
michael@0	7	#include "nsBoxObject.h"
michael@0	8	#include "nsIDOMKeyEvent.h"
michael@0	9	#include "nsIFrame.h"
michael@0	10	#include "nsMenuBarFrame.h"
michael@0	11	#include "nsMenuBarListener.h"
michael@0	12	#include "nsMenuFrame.h"
michael@0	13	#include "nsMenuPopupFrame.h"
michael@0	14
michael@0	15	class nsMenuBoxObject : public nsIMenuBoxObject,
michael@0	16	public nsBoxObject
michael@0	17	{
michael@0	18	public:
michael@0	19	NS_DECL_ISUPPORTS_INHERITED
michael@0	20	NS_DECL_NSIMENUBOXOBJECT
michael@0	21
michael@0	22	nsMenuBoxObject();
michael@0	23	virtual ~nsMenuBoxObject();
michael@0	24	};
michael@0	25
michael@0	26	nsMenuBoxObject::nsMenuBoxObject()
michael@0	27	{
michael@0	28	}
michael@0	29
michael@0	30	nsMenuBoxObject::~nsMenuBoxObject()
michael@0	31	{
michael@0	32	}
michael@0	33
michael@0	34	NS_IMPL_ISUPPORTS_INHERITED(nsMenuBoxObject, nsBoxObject, nsIMenuBoxObject)
michael@0	35
michael@0	36	/* void openMenu (in boolean openFlag); */
michael@0	37	NS_IMETHODIMP nsMenuBoxObject::OpenMenu(bool aOpenFlag)
michael@0	38	{
michael@0	39	nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
michael@0	40	if (pm) {
michael@0	41	nsIFrame* frame = GetFrame(false);
michael@0	42	if (frame) {
michael@0	43	if (aOpenFlag) {
michael@0	44	nsCOMPtr<nsIContent> content = mContent;
michael@0	45	pm->ShowMenu(content, false, false);
michael@0	46	}
michael@0	47	else {
michael@0	48	nsMenuFrame* menu = do_QueryFrame(frame);
michael@0	49	if (menu) {
michael@0	50	nsMenuPopupFrame* popupFrame = menu->GetPopup();
michael@0	51	if (popupFrame)
michael@0	52	pm->HidePopup(popupFrame->GetContent(), false, true, false, false);
michael@0	53	}
michael@0	54	}
michael@0	55	}
michael@0	56	}
michael@0	57
michael@0	58	return NS_OK;
michael@0	59	}
michael@0	60
michael@0	61	NS_IMETHODIMP nsMenuBoxObject::GetActiveChild(nsIDOMElement** aResult)
michael@0	62	{
michael@0	63	*aResult = nullptr;
michael@0	64	nsMenuFrame* menu = do_QueryFrame(GetFrame(false));
michael@0	65	if (menu)
michael@0	66	return menu->GetActiveChild(aResult);
michael@0	67	return NS_OK;
michael@0	68	}
michael@0	69
michael@0	70	NS_IMETHODIMP nsMenuBoxObject::SetActiveChild(nsIDOMElement* aResult)
michael@0	71	{
michael@0	72	nsMenuFrame* menu = do_QueryFrame(GetFrame(false));
michael@0	73	if (menu)
michael@0	74	return menu->SetActiveChild(aResult);
michael@0	75	return NS_OK;
michael@0	76	}
michael@0	77
michael@0	78	/* boolean handleKeyPress (in nsIDOMKeyEvent keyEvent); */
michael@0	79	NS_IMETHODIMP nsMenuBoxObject::HandleKeyPress(nsIDOMKeyEvent* aKeyEvent, bool* aHandledFlag)
michael@0	80	{
michael@0	81	*aHandledFlag = false;
michael@0	82	NS_ENSURE_ARG(aKeyEvent);
michael@0	83
michael@0	84	nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
michael@0	85	if (!pm)
michael@0	86	return NS_OK;
michael@0	87
michael@0	88	// if event has already been handled, bail
michael@0	89	bool eventHandled = false;
michael@0	90	aKeyEvent->GetDefaultPrevented(&eventHandled);
michael@0	91	if (eventHandled)
michael@0	92	return NS_OK;
michael@0	93
michael@0	94	if (nsMenuBarListener::IsAccessKeyPressed(aKeyEvent))
michael@0	95	return NS_OK;
michael@0	96
michael@0	97	nsMenuFrame* menu = do_QueryFrame(GetFrame(false));
michael@0	98	if (!menu)
michael@0	99	return NS_OK;
michael@0	100
michael@0	101	nsMenuPopupFrame* popupFrame = menu->GetPopup();
michael@0	102	if (!popupFrame)
michael@0	103	return NS_OK;
michael@0	104
michael@0	105	uint32_t keyCode;
michael@0	106	aKeyEvent->GetKeyCode(&keyCode);
michael@0	107	switch (keyCode) {
michael@0	108	case nsIDOMKeyEvent::DOM_VK_UP:
michael@0	109	case nsIDOMKeyEvent::DOM_VK_DOWN:
michael@0	110	case nsIDOMKeyEvent::DOM_VK_HOME:
michael@0	111	case nsIDOMKeyEvent::DOM_VK_END:
michael@0	112	{
michael@0	113	nsNavigationDirection theDirection;
michael@0	114	theDirection = NS_DIRECTION_FROM_KEY_CODE(popupFrame, keyCode);
michael@0	115	*aHandledFlag =
michael@0	116	pm->HandleKeyboardNavigationInPopup(popupFrame, theDirection);
michael@0	117	return NS_OK;
michael@0	118	}
michael@0	119	default:
michael@0	120	*aHandledFlag = pm->HandleShortcutNavigation(aKeyEvent, popupFrame);
michael@0	121	return NS_OK;
michael@0	122	}
michael@0	123	}
michael@0	124
michael@0	125	NS_IMETHODIMP
michael@0	126	nsMenuBoxObject::GetOpenedWithKey(bool* aOpenedWithKey)
michael@0	127	{
michael@0	128	*aOpenedWithKey = false;
michael@0	129
michael@0	130	nsMenuFrame* menuframe = do_QueryFrame(GetFrame(false));
michael@0	131	if (!menuframe)
michael@0	132	return NS_OK;
michael@0	133
michael@0	134	nsIFrame* frame = menuframe->GetParent();
michael@0	135	while (frame) {
michael@0	136	nsMenuBarFrame* menubar = do_QueryFrame(frame);
michael@0	137	if (menubar) {
michael@0	138	*aOpenedWithKey = menubar->IsActiveByKeyboard();
michael@0	139	return NS_OK;
michael@0	140	}
michael@0	141	frame = frame->GetParent();
michael@0	142	}
michael@0	143
michael@0	144	return NS_OK;
michael@0	145	}
michael@0	146
michael@0	147
michael@0	148	// Creation Routine ///////////////////////////////////////////////////////////////////////
michael@0	149
michael@0	150	nsresult
michael@0	151	NS_NewMenuBoxObject(nsIBoxObject** aResult)
michael@0	152	{
michael@0	153	*aResult = new nsMenuBoxObject;
michael@0	154	if (!*aResult)
michael@0	155	return NS_ERROR_OUT_OF_MEMORY;
michael@0	156	NS_ADDREF(*aResult);
michael@0	157	return NS_OK;
michael@0	158	}
michael@0	159