mirror of
https://github.com/classilla/tenfourfox.git
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326 lines
7.3 KiB
C++
326 lines
7.3 KiB
C++
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/BarProps.h"
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#include "mozilla/dom/BarPropBinding.h"
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#include "nsContentUtils.h"
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#include "nsGlobalWindow.h"
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#include "nsIDocShell.h"
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#include "nsIScrollable.h"
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#include "nsIWebBrowserChrome.h"
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namespace mozilla {
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namespace dom {
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//
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// Basic (virtual) BarProp class implementation
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//
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BarProp::BarProp(nsGlobalWindow* aWindow)
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: mDOMWindow(aWindow)
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{
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MOZ_ASSERT(aWindow->IsInnerWindow());
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}
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BarProp::~BarProp()
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{
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}
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nsPIDOMWindow*
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BarProp::GetParentObject() const
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{
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return mDOMWindow;
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}
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JSObject*
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BarProp::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return BarPropBinding::Wrap(aCx, this, aGivenProto);
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}
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(BarProp, mDOMWindow)
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NS_IMPL_CYCLE_COLLECTING_ADDREF(BarProp)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(BarProp)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(BarProp)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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bool
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BarProp::GetVisibleByFlag(uint32_t aChromeFlag, ErrorResult& aRv)
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{
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nsCOMPtr<nsIWebBrowserChrome> browserChrome = GetBrowserChrome();
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NS_ENSURE_TRUE(browserChrome, false);
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uint32_t chromeFlags;
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if (NS_FAILED(browserChrome->GetChromeFlags(&chromeFlags))) {
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aRv.Throw(NS_ERROR_FAILURE);
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return false;
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}
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return (chromeFlags & aChromeFlag);
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}
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void
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BarProp::SetVisibleByFlag(bool aVisible, uint32_t aChromeFlag,
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ErrorResult& aRv)
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{
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nsCOMPtr<nsIWebBrowserChrome> browserChrome = GetBrowserChrome();
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NS_ENSURE_TRUE_VOID(browserChrome);
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if (!nsContentUtils::IsCallerChrome()) {
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return;
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}
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uint32_t chromeFlags;
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if (NS_FAILED(browserChrome->GetChromeFlags(&chromeFlags))) {
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aRv.Throw(NS_ERROR_FAILURE);
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return;
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}
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if (aVisible)
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chromeFlags |= aChromeFlag;
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else
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chromeFlags &= ~aChromeFlag;
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if (NS_FAILED(browserChrome->SetChromeFlags(chromeFlags))) {
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aRv.Throw(NS_ERROR_FAILURE);
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}
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}
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already_AddRefed<nsIWebBrowserChrome>
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BarProp::GetBrowserChrome()
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{
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if (!mDOMWindow) {
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return nullptr;
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}
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return mDOMWindow->GetWebBrowserChrome();
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}
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//
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// MenubarProp class implementation
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//
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MenubarProp::MenubarProp(nsGlobalWindow *aWindow)
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: BarProp(aWindow)
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{
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}
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MenubarProp::~MenubarProp()
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{
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}
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bool
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MenubarProp::GetVisible(ErrorResult& aRv)
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{
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return BarProp::GetVisibleByFlag(nsIWebBrowserChrome::CHROME_MENUBAR, aRv);
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}
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void
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MenubarProp::SetVisible(bool aVisible, ErrorResult& aRv)
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{
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BarProp::SetVisibleByFlag(aVisible, nsIWebBrowserChrome::CHROME_MENUBAR, aRv);
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}
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//
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// ToolbarProp class implementation
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//
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ToolbarProp::ToolbarProp(nsGlobalWindow *aWindow)
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: BarProp(aWindow)
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{
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}
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ToolbarProp::~ToolbarProp()
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{
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}
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bool
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ToolbarProp::GetVisible(ErrorResult& aRv)
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{
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return BarProp::GetVisibleByFlag(nsIWebBrowserChrome::CHROME_TOOLBAR, aRv);
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}
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void
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ToolbarProp::SetVisible(bool aVisible, ErrorResult& aRv)
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{
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BarProp::SetVisibleByFlag(aVisible, nsIWebBrowserChrome::CHROME_TOOLBAR,
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aRv);
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}
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//
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// LocationbarProp class implementation
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//
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LocationbarProp::LocationbarProp(nsGlobalWindow *aWindow)
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: BarProp(aWindow)
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{
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}
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LocationbarProp::~LocationbarProp()
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{
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}
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bool
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LocationbarProp::GetVisible(ErrorResult& aRv)
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{
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return BarProp::GetVisibleByFlag(nsIWebBrowserChrome::CHROME_LOCATIONBAR,
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aRv);
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}
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void
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LocationbarProp::SetVisible(bool aVisible, ErrorResult& aRv)
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{
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BarProp::SetVisibleByFlag(aVisible, nsIWebBrowserChrome::CHROME_LOCATIONBAR,
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aRv);
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}
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//
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// PersonalbarProp class implementation
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//
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PersonalbarProp::PersonalbarProp(nsGlobalWindow *aWindow)
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: BarProp(aWindow)
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{
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}
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PersonalbarProp::~PersonalbarProp()
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{
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}
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bool
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PersonalbarProp::GetVisible(ErrorResult& aRv)
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{
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return BarProp::GetVisibleByFlag(nsIWebBrowserChrome::CHROME_PERSONAL_TOOLBAR,
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aRv);
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}
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void
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PersonalbarProp::SetVisible(bool aVisible, ErrorResult& aRv)
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{
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BarProp::SetVisibleByFlag(aVisible,
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nsIWebBrowserChrome::CHROME_PERSONAL_TOOLBAR,
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aRv);
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}
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//
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// StatusbarProp class implementation
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//
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StatusbarProp::StatusbarProp(nsGlobalWindow *aWindow)
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: BarProp(aWindow)
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{
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}
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StatusbarProp::~StatusbarProp()
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{
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}
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bool
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StatusbarProp::GetVisible(ErrorResult& aRv)
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{
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return BarProp::GetVisibleByFlag(nsIWebBrowserChrome::CHROME_STATUSBAR, aRv);
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}
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void
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StatusbarProp::SetVisible(bool aVisible, ErrorResult& aRv)
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{
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return BarProp::SetVisibleByFlag(aVisible,
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nsIWebBrowserChrome::CHROME_STATUSBAR, aRv);
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}
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//
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// ScrollbarsProp class implementation
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//
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ScrollbarsProp::ScrollbarsProp(nsGlobalWindow *aWindow)
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: BarProp(aWindow)
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{
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}
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ScrollbarsProp::~ScrollbarsProp()
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{
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}
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bool
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ScrollbarsProp::GetVisible(ErrorResult& aRv)
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{
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if (!mDOMWindow) {
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return true;
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}
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nsCOMPtr<nsIScrollable> scroller =
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do_QueryInterface(mDOMWindow->GetDocShell());
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if (!scroller) {
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return true;
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}
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int32_t prefValue;
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scroller->GetDefaultScrollbarPreferences(
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nsIScrollable::ScrollOrientation_Y, &prefValue);
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if (prefValue != nsIScrollable::Scrollbar_Never) {
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return true;
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}
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scroller->GetDefaultScrollbarPreferences(
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nsIScrollable::ScrollOrientation_X, &prefValue);
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return prefValue != nsIScrollable::Scrollbar_Never;
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}
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void
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ScrollbarsProp::SetVisible(bool aVisible, ErrorResult& aRv)
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{
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if (!nsContentUtils::LegacyIsCallerChromeOrNativeCode()) {
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return;
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}
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/* Scrollbars, unlike the other barprops, implement visibility directly
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rather than handing off to the superclass (and from there to the
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chrome window) because scrollbar visibility uniquely applies only
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to the window making the change (arguably. it does now, anyway.)
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and because embedding apps have no interface for implementing this
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themselves, and therefore the implementation must be internal. */
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nsCOMPtr<nsIScrollable> scroller =
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do_QueryInterface(mDOMWindow->GetDocShell());
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if (scroller) {
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int32_t prefValue;
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if (aVisible) {
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prefValue = nsIScrollable::Scrollbar_Auto;
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} else {
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prefValue = nsIScrollable::Scrollbar_Never;
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}
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scroller->SetDefaultScrollbarPreferences(
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nsIScrollable::ScrollOrientation_Y, prefValue);
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scroller->SetDefaultScrollbarPreferences(
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nsIScrollable::ScrollOrientation_X, prefValue);
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}
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/* Notably absent is the part where we notify the chrome window using
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GetBrowserChrome()->SetChromeFlags(). Given the possibility of multiple
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DOM windows (multiple top-level windows, even) within a single
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chrome window, the historical concept of a single "has scrollbars"
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flag in the chrome is inapplicable, and we can't tell at this level
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whether we represent the particular DOM window that makes this decision
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for the chrome.
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So only this object (and its corresponding DOM window) knows whether
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scrollbars are visible. The corresponding chrome window will need to
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ask (one of) its DOM window(s) when it needs to know about scrollbar
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visibility, rather than caching its own copy of that information.
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*/
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}
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} // namespace dom
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} // namespace mozilla
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