diff options
Diffstat (limited to 'widget/gtk/nsMenuBar.cpp')
| -rw-r--r-- | widget/gtk/nsMenuBar.cpp | 541 |
1 files changed, 541 insertions, 0 deletions
diff --git a/widget/gtk/nsMenuBar.cpp b/widget/gtk/nsMenuBar.cpp new file mode 100644 index 000000000..e7caf119c --- /dev/null +++ b/widget/gtk/nsMenuBar.cpp @@ -0,0 +1,541 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "mozilla/Assertions.h" +#include "mozilla/DebugOnly.h" +#include "mozilla/dom/Element.h" +#include "mozilla/Move.h" +#include "mozilla/Preferences.h" +#include "nsAutoPtr.h" +#include "nsContentUtils.h" +#include "nsIDocument.h" +#include "nsIDOMEvent.h" +#include "nsIDOMEventListener.h" +#include "nsIDOMEventTarget.h" +#include "nsIDOMKeyEvent.h" +#include "nsIRunnable.h" +#include "nsIWidget.h" +#include "nsTArray.h" +#include "nsUnicharUtils.h" + +#include "nsMenu.h" +#include "nsNativeMenuAtoms.h" +#include "nsNativeMenuService.h" + +#include <gdk/gdk.h> +#include <gdk/gdkx.h> +#include <glib.h> +#include <glib-object.h> + +#include "nsMenuBar.h" + +using namespace mozilla; + +static bool +ShouldHandleKeyEvent(nsIDOMEvent* aEvent) { + bool handled, trusted = false; + aEvent->GetPreventDefault(&handled); + aEvent->GetIsTrusted(&trusted); + + if (handled || !trusted) { + return false; + } + + return true; +} + +class nsMenuBarContentInsertedEvent : public Runnable { +public: + nsMenuBarContentInsertedEvent(nsMenuBar* aMenuBar, + nsIContent* aChild, + nsIContent* aPrevSibling) : + mWeakMenuBar(aMenuBar), + mChild(aChild), + mPrevSibling(aPrevSibling) { } + + NS_IMETHODIMP Run() + { + if (!mWeakMenuBar) { + return NS_OK; + } + + static_cast<nsMenuBar* >(mWeakMenuBar.get())->HandleContentInserted(mChild, + mPrevSibling); + return NS_OK; + } + +private: + nsWeakMenuObject mWeakMenuBar; + + nsCOMPtr<nsIContent> mChild; + nsCOMPtr<nsIContent> mPrevSibling; +}; + +class nsMenuBarContentRemovedEvent : public Runnable { +public: + nsMenuBarContentRemovedEvent(nsMenuBar* aMenuBar, + nsIContent* aChild) : + mWeakMenuBar(aMenuBar), + mChild(aChild) { } + + NS_IMETHODIMP Run() + { + if (!mWeakMenuBar) { + return NS_OK; + } + + static_cast<nsMenuBar* >(mWeakMenuBar.get())->HandleContentRemoved(mChild); + return NS_OK; + } + +private: + nsWeakMenuObject mWeakMenuBar; + + nsCOMPtr<nsIContent> mChild; +}; + +class nsMenuBar::DocEventListener final : public nsIDOMEventListener { +public: + NS_DECL_ISUPPORTS + NS_DECL_NSIDOMEVENTLISTENER + + DocEventListener(nsMenuBar* aOwner) : mOwner(aOwner) { }; + +private: + ~DocEventListener() { }; + + nsMenuBar* mOwner; +}; + +NS_IMPL_ISUPPORTS(nsMenuBar::DocEventListener, nsIDOMEventListener) + +NS_IMETHODIMP +nsMenuBar::DocEventListener::HandleEvent(nsIDOMEvent* aEvent) { + nsAutoString type; + nsresult rv = aEvent->GetType(type); + if (NS_FAILED(rv)) { + NS_WARNING("Failed to determine event type"); + return rv; + } + + if (type.Equals(NS_LITERAL_STRING("focus"))) { + mOwner->Focus(); + } else if (type.Equals(NS_LITERAL_STRING("blur"))) { + mOwner->Blur(); + } else if (type.Equals(NS_LITERAL_STRING("keypress"))) { + rv = mOwner->Keypress(aEvent); + } else if (type.Equals(NS_LITERAL_STRING("keydown"))) { + rv = mOwner->KeyDown(aEvent); + } else if (type.Equals(NS_LITERAL_STRING("keyup"))) { + rv = mOwner->KeyUp(aEvent); + } + + return rv; +} + +nsMenuBar::nsMenuBar(nsIContent* aMenuBarNode) : + nsMenuContainer(new nsNativeMenuDocListener(aMenuBarNode), aMenuBarNode), + mTopLevel(nullptr), + mServer(nullptr), + mIsActive(false) { + MOZ_COUNT_CTOR(nsMenuBar); +} + +nsresult +nsMenuBar::Init(nsIWidget* aParent) { + MOZ_ASSERT(aParent); + + GdkWindow* gdkWin = static_cast<GdkWindow* >( + aParent->GetNativeData(NS_NATIVE_WINDOW)); + if (!gdkWin) { + return NS_ERROR_FAILURE; + } + + gpointer user_data = nullptr; + gdk_window_get_user_data(gdkWin, &user_data); + if (!user_data || !GTK_IS_CONTAINER(user_data)) { + return NS_ERROR_FAILURE; + } + + mTopLevel = gtk_widget_get_toplevel(GTK_WIDGET(user_data)); + if (!mTopLevel) { + return NS_ERROR_FAILURE; + } + + g_object_ref(mTopLevel); + + nsAutoCString path; + path.Append(NS_LITERAL_CSTRING("/com/canonical/menu/")); + char xid[10]; + sprintf(xid, "%X", static_cast<uint32_t>( + GDK_WINDOW_XID(gtk_widget_get_window(mTopLevel)))); + path.Append(xid); + + mServer = dbusmenu_server_new(path.get()); + if (!mServer) { + return NS_ERROR_FAILURE; + } + + CreateNativeData(); + if (!GetNativeData()) { + return NS_ERROR_FAILURE; + } + + dbusmenu_server_set_root(mServer, GetNativeData()); + + mEventListener = new DocEventListener(this); + + mDocument = do_QueryInterface(ContentNode()->OwnerDoc()); + + mAccessKey = Preferences::GetInt("ui.key.menuAccessKey"); + if (mAccessKey == nsIDOMKeyEvent::DOM_VK_SHIFT) { + mAccessKeyMask = eModifierShift; + } else if (mAccessKey == nsIDOMKeyEvent::DOM_VK_CONTROL) { + mAccessKeyMask = eModifierCtrl; + } else if (mAccessKey == nsIDOMKeyEvent::DOM_VK_ALT) { + mAccessKeyMask = eModifierAlt; + } else if (mAccessKey == nsIDOMKeyEvent::DOM_VK_META) { + mAccessKeyMask = eModifierMeta; + } else { + mAccessKeyMask = eModifierAlt; + } + + return NS_OK; +} + +void +nsMenuBar::Build() { + uint32_t count = ContentNode()->GetChildCount(); + for (uint32_t i = 0; i < count; ++i) { + nsIContent* childContent = ContentNode()->GetChildAt(i); + + UniquePtr<nsMenuObject> child = CreateChild(childContent); + + if (!child) { + continue; + } + + AppendChild(Move(child)); + } +} + +void +nsMenuBar::DisconnectDocumentEventListeners() { + mDocument->RemoveEventListener(NS_LITERAL_STRING("focus"), + mEventListener, + true); + mDocument->RemoveEventListener(NS_LITERAL_STRING("blur"), + mEventListener, + true); + mDocument->RemoveEventListener(NS_LITERAL_STRING("keypress"), + mEventListener, + false); + mDocument->RemoveEventListener(NS_LITERAL_STRING("keydown"), + mEventListener, + false); + mDocument->RemoveEventListener(NS_LITERAL_STRING("keyup"), + mEventListener, + false); +} + +void +nsMenuBar::SetShellShowingMenuBar(bool aShowing) { + ContentNode()->OwnerDoc()->GetRootElement()->SetAttr( + kNameSpaceID_None, nsNativeMenuAtoms::shellshowingmenubar, + aShowing ? NS_LITERAL_STRING("true") : NS_LITERAL_STRING("false"), + true); +} + +void +nsMenuBar::Focus() { + ContentNode()->SetAttr(kNameSpaceID_None, nsNativeMenuAtoms::openedwithkey, + NS_LITERAL_STRING("false"), true); +} + +void +nsMenuBar::Blur() { + // We do this here in case we lose focus before getting the + // keyup event, which leaves the menubar state looking like + // the alt key is stuck down + dbusmenu_server_set_status(mServer, DBUSMENU_STATUS_NORMAL); +} + +nsMenuBar::ModifierFlags +nsMenuBar::GetModifiersFromEvent(nsIDOMKeyEvent* aEvent) { + ModifierFlags modifiers = static_cast<ModifierFlags>(0); + bool modifier; + + aEvent->GetAltKey(&modifier); + if (modifier) { + modifiers = static_cast<ModifierFlags>(modifiers | eModifierAlt); + } + + aEvent->GetShiftKey(&modifier); + if (modifier) { + modifiers = static_cast<ModifierFlags>(modifiers | eModifierShift); + } + + aEvent->GetCtrlKey(&modifier); + if (modifier) { + modifiers = static_cast<ModifierFlags>(modifiers | eModifierCtrl); + } + + aEvent->GetMetaKey(&modifier); + if (modifier) { + modifiers = static_cast<ModifierFlags>(modifiers | eModifierMeta); + } + + return modifiers; +} + +nsresult +nsMenuBar::Keypress(nsIDOMEvent* aEvent) { + if (!ShouldHandleKeyEvent(aEvent)) { + return NS_OK; + } + + nsCOMPtr<nsIDOMKeyEvent> keyEvent = do_QueryInterface(aEvent); + if (!keyEvent) { + return NS_OK; + } + + ModifierFlags modifiers = GetModifiersFromEvent(keyEvent); + if (((modifiers & mAccessKeyMask) == 0) || + ((modifiers & ~mAccessKeyMask) != 0)) { + return NS_OK; + } + + uint32_t charCode; + keyEvent->GetCharCode(&charCode); + if (charCode == 0) { + return NS_OK; + } + + char16_t ch = char16_t(charCode); + char16_t chl = ToLowerCase(ch); + char16_t chu = ToUpperCase(ch); + + nsMenuObject* found = nullptr; + uint32_t count = ChildCount(); + for (uint32_t i = 0; i < count; ++i) { + nsAutoString accesskey; + ChildAt(i)->ContentNode()->GetAttr(kNameSpaceID_None, + nsGkAtoms::accesskey, + accesskey); + const nsAutoString::char_type* key = accesskey.BeginReading(); + if (*key == chu ||* key == chl) { + found = ChildAt(i); + break; + } + } + + if (!found || found->Type() != nsMenuObject::eType_Menu) { + return NS_OK; + } + + ContentNode()->SetAttr(kNameSpaceID_None, nsNativeMenuAtoms::openedwithkey, + NS_LITERAL_STRING("true"), true); + static_cast<nsMenu* >(found)->OpenMenu(); + + aEvent->StopPropagation(); + aEvent->PreventDefault(); + + return NS_OK; +} + +nsresult +nsMenuBar::KeyDown(nsIDOMEvent* aEvent) { + if (!ShouldHandleKeyEvent(aEvent)) { + return NS_OK; + } + + nsCOMPtr<nsIDOMKeyEvent> keyEvent = do_QueryInterface(aEvent); + if (!keyEvent) { + return NS_OK; + } + + uint32_t keyCode; + keyEvent->GetKeyCode(&keyCode); + ModifierFlags modifiers = GetModifiersFromEvent(keyEvent); + if ((keyCode != mAccessKey) || ((modifiers & ~mAccessKeyMask) != 0)) { + return NS_OK; + } + + dbusmenu_server_set_status(mServer, DBUSMENU_STATUS_NOTICE); + + return NS_OK; +} + +nsresult +nsMenuBar::KeyUp(nsIDOMEvent* aEvent) { + if (!ShouldHandleKeyEvent(aEvent)) { + return NS_OK; + } + + nsCOMPtr<nsIDOMKeyEvent> keyEvent = do_QueryInterface(aEvent); + if (!keyEvent) { + return NS_OK; + } + + uint32_t keyCode; + keyEvent->GetKeyCode(&keyCode); + if (keyCode == mAccessKey) { + dbusmenu_server_set_status(mServer, DBUSMENU_STATUS_NORMAL); + } + + return NS_OK; +} + +void +nsMenuBar::HandleContentInserted(nsIContent* aChild, nsIContent* aPrevSibling) { + UniquePtr<nsMenuObject> child = CreateChild(aChild); + + if (!child) { + return; + } + + InsertChildAfter(Move(child), aPrevSibling); +} + +void +nsMenuBar::HandleContentRemoved(nsIContent* aChild) { + RemoveChild(aChild); +} + +void +nsMenuBar::OnContentInserted(nsIContent* aContainer, nsIContent* aChild, + nsIContent* aPrevSibling) { + MOZ_ASSERT(aContainer == ContentNode(), + "Received an event that wasn't meant for us"); + + nsContentUtils::AddScriptRunner( + new nsMenuBarContentInsertedEvent(this, aChild, aPrevSibling)); +} + +void +nsMenuBar::OnContentRemoved(nsIContent* aContainer, nsIContent* aChild) { + MOZ_ASSERT(aContainer == ContentNode(), + "Received an event that wasn't meant for us"); + + nsContentUtils::AddScriptRunner( + new nsMenuBarContentRemovedEvent(this, aChild)); +} + +nsMenuBar::~nsMenuBar() { + nsNativeMenuService* service = nsNativeMenuService::GetSingleton(); + if (service) { + service->NotifyNativeMenuBarDestroyed(this); + } + + if (ContentNode()) { + SetShellShowingMenuBar(false); + } + + // We want to destroy all children before dropping our reference + // to the doc listener + while (ChildCount() > 0) { + RemoveChildAt(0); + } + + if (mTopLevel) { + g_object_unref(mTopLevel); + } + + if (DocListener()) { + DocListener()->Stop(); + } + + if (mDocument) { + DisconnectDocumentEventListeners(); + } + + if (mServer) { + g_object_unref(mServer); + } + + MOZ_COUNT_DTOR(nsMenuBar); +} + +/* static */ UniquePtr<nsMenuBar> +nsMenuBar::Create(nsIWidget* aParent, nsIContent* aMenuBarNode) { + UniquePtr<nsMenuBar> menubar(new nsMenuBar(aMenuBarNode)); + if (NS_FAILED(menubar->Init(aParent))) { + return nullptr; + } + + return Move(menubar); +} + +nsMenuObject::EType +nsMenuBar::Type() const { + return eType_MenuBar; +} + +bool +nsMenuBar::IsBeingDisplayed() const { + return true; +} + +uint32_t +nsMenuBar::WindowId() const { + return static_cast<uint32_t>(GDK_WINDOW_XID(gtk_widget_get_window(mTopLevel))); +} + +nsAdoptingCString +nsMenuBar::ObjectPath() const { + gchar* tmp; + g_object_get(mServer, DBUSMENU_SERVER_PROP_DBUS_OBJECT, &tmp, NULL); + nsAdoptingCString result(tmp); + + return result; +} + +void +nsMenuBar::Activate() { + if (mIsActive) { + return; + } + + mIsActive = true; + + mDocument->AddEventListener(NS_LITERAL_STRING("focus"), + mEventListener, + true); + mDocument->AddEventListener(NS_LITERAL_STRING("blur"), + mEventListener, + true); + mDocument->AddEventListener(NS_LITERAL_STRING("keypress"), + mEventListener, + false); + mDocument->AddEventListener(NS_LITERAL_STRING("keydown"), + mEventListener, + false); + mDocument->AddEventListener(NS_LITERAL_STRING("keyup"), + mEventListener, + false); + + // Clear this. Not sure if we really need to though + ContentNode()->SetAttr(kNameSpaceID_None, nsNativeMenuAtoms::openedwithkey, + NS_LITERAL_STRING("false"), true); + + DocListener()->Start(); + Build(); + SetShellShowingMenuBar(true); +} + +void +nsMenuBar::Deactivate() { + if (!mIsActive) { + return; + } + + mIsActive = false; + + SetShellShowingMenuBar(false); + while (ChildCount() > 0) { + RemoveChildAt(0); + } + DocListener()->Stop(); + DisconnectDocumentEventListeners(); +} |