/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* 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/dom/BarProps.h" #include "mozilla/dom/BarPropBinding.h" #include "nsContentUtils.h" #include "nsGlobalWindow.h" #include "nsIDocShell.h" #include "nsIScrollable.h" #include "nsIWebBrowserChrome.h" namespace mozilla { namespace dom { // // Basic (virtual) BarProp class implementation // BarProp::BarProp(nsGlobalWindow* aWindow) : mDOMWindow(aWindow) { MOZ_ASSERT(aWindow->IsInnerWindow()); } BarProp::~BarProp() { } nsPIDOMWindowInner* BarProp::GetParentObject() const { return mDOMWindow->AsInner(); } JSObject* BarProp::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) { return BarPropBinding::Wrap(aCx, this, aGivenProto); } NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(BarProp, mDOMWindow) NS_IMPL_CYCLE_COLLECTING_ADDREF(BarProp) NS_IMPL_CYCLE_COLLECTING_RELEASE(BarProp) NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(BarProp) NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY NS_INTERFACE_MAP_ENTRY(nsISupports) NS_INTERFACE_MAP_END bool BarProp::GetVisibleByFlag(uint32_t aChromeFlag, ErrorResult& aRv) { nsCOMPtr<nsIWebBrowserChrome> browserChrome = GetBrowserChrome(); NS_ENSURE_TRUE(browserChrome, false); uint32_t chromeFlags; if (NS_FAILED(browserChrome->GetChromeFlags(&chromeFlags))) { aRv.Throw(NS_ERROR_FAILURE); return false; } return (chromeFlags & aChromeFlag); } void BarProp::SetVisibleByFlag(bool aVisible, uint32_t aChromeFlag, ErrorResult& aRv) { nsCOMPtr<nsIWebBrowserChrome> browserChrome = GetBrowserChrome(); NS_ENSURE_TRUE_VOID(browserChrome); if (!nsContentUtils::IsCallerChrome()) { return; } uint32_t chromeFlags; if (NS_FAILED(browserChrome->GetChromeFlags(&chromeFlags))) { aRv.Throw(NS_ERROR_FAILURE); return; } if (aVisible) chromeFlags |= aChromeFlag; else chromeFlags &= ~aChromeFlag; if (NS_FAILED(browserChrome->SetChromeFlags(chromeFlags))) { aRv.Throw(NS_ERROR_FAILURE); } } already_AddRefed<nsIWebBrowserChrome> BarProp::GetBrowserChrome() { if (!mDOMWindow) { return nullptr; } return mDOMWindow->GetWebBrowserChrome(); } // // MenubarProp class implementation // MenubarProp::MenubarProp(nsGlobalWindow *aWindow) : BarProp(aWindow) { } MenubarProp::~MenubarProp() { } bool MenubarProp::GetVisible(ErrorResult& aRv) { return BarProp::GetVisibleByFlag(nsIWebBrowserChrome::CHROME_MENUBAR, aRv); } void MenubarProp::SetVisible(bool aVisible, ErrorResult& aRv) { BarProp::SetVisibleByFlag(aVisible, nsIWebBrowserChrome::CHROME_MENUBAR, aRv); } // // ToolbarProp class implementation // ToolbarProp::ToolbarProp(nsGlobalWindow *aWindow) : BarProp(aWindow) { } ToolbarProp::~ToolbarProp() { } bool ToolbarProp::GetVisible(ErrorResult& aRv) { return BarProp::GetVisibleByFlag(nsIWebBrowserChrome::CHROME_TOOLBAR, aRv); } void ToolbarProp::SetVisible(bool aVisible, ErrorResult& aRv) { BarProp::SetVisibleByFlag(aVisible, nsIWebBrowserChrome::CHROME_TOOLBAR, aRv); } // // LocationbarProp class implementation // LocationbarProp::LocationbarProp(nsGlobalWindow *aWindow) : BarProp(aWindow) { } LocationbarProp::~LocationbarProp() { } bool LocationbarProp::GetVisible(ErrorResult& aRv) { return BarProp::GetVisibleByFlag(nsIWebBrowserChrome::CHROME_LOCATIONBAR, aRv); } void LocationbarProp::SetVisible(bool aVisible, ErrorResult& aRv) { BarProp::SetVisibleByFlag(aVisible, nsIWebBrowserChrome::CHROME_LOCATIONBAR, aRv); } // // PersonalbarProp class implementation // PersonalbarProp::PersonalbarProp(nsGlobalWindow *aWindow) : BarProp(aWindow) { } PersonalbarProp::~PersonalbarProp() { } bool PersonalbarProp::GetVisible(ErrorResult& aRv) { return BarProp::GetVisibleByFlag(nsIWebBrowserChrome::CHROME_PERSONAL_TOOLBAR, aRv); } void PersonalbarProp::SetVisible(bool aVisible, ErrorResult& aRv) { BarProp::SetVisibleByFlag(aVisible, nsIWebBrowserChrome::CHROME_PERSONAL_TOOLBAR, aRv); } // // StatusbarProp class implementation // StatusbarProp::StatusbarProp(nsGlobalWindow *aWindow) : BarProp(aWindow) { } StatusbarProp::~StatusbarProp() { } bool StatusbarProp::GetVisible(ErrorResult& aRv) { return BarProp::GetVisibleByFlag(nsIWebBrowserChrome::CHROME_STATUSBAR, aRv); } void StatusbarProp::SetVisible(bool aVisible, ErrorResult& aRv) { return BarProp::SetVisibleByFlag(aVisible, nsIWebBrowserChrome::CHROME_STATUSBAR, aRv); } // // ScrollbarsProp class implementation // ScrollbarsProp::ScrollbarsProp(nsGlobalWindow *aWindow) : BarProp(aWindow) { } ScrollbarsProp::~ScrollbarsProp() { } bool ScrollbarsProp::GetVisible(ErrorResult& aRv) { if (!mDOMWindow) { return true; } nsCOMPtr<nsIScrollable> scroller = do_QueryInterface(mDOMWindow->GetDocShell()); if (!scroller) { return true; } int32_t prefValue; scroller->GetDefaultScrollbarPreferences( nsIScrollable::ScrollOrientation_Y, &prefValue); if (prefValue != nsIScrollable::Scrollbar_Never) { return true; } scroller->GetDefaultScrollbarPreferences( nsIScrollable::ScrollOrientation_X, &prefValue); return prefValue != nsIScrollable::Scrollbar_Never; } void ScrollbarsProp::SetVisible(bool aVisible, ErrorResult& aRv) { if (!nsContentUtils::LegacyIsCallerChromeOrNativeCode()) { return; } /* Scrollbars, unlike the other barprops, implement visibility directly rather than handing off to the superclass (and from there to the chrome window) because scrollbar visibility uniquely applies only to the window making the change (arguably. it does now, anyway.) and because embedding apps have no interface for implementing this themselves, and therefore the implementation must be internal. */ nsContentUtils::SetScrollbarsVisibility(mDOMWindow->GetDocShell(), aVisible); /* Notably absent is the part where we notify the chrome window using GetBrowserChrome()->SetChromeFlags(). Given the possibility of multiple DOM windows (multiple top-level windows, even) within a single chrome window, the historical concept of a single "has scrollbars" flag in the chrome is inapplicable, and we can't tell at this level whether we represent the particular DOM window that makes this decision for the chrome. So only this object (and its corresponding DOM window) knows whether scrollbars are visible. The corresponding chrome window will need to ask (one of) its DOM window(s) when it needs to know about scrollbar visibility, rather than caching its own copy of that information. */ } } // namespace dom } // namespace mozilla