зеркало из https://github.com/mozilla/gecko-dev.git
115 строки
3.3 KiB
Plaintext
115 строки
3.3 KiB
Plaintext
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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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/*
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* Retrieves and displays icons on the macOS Touch Bar.
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*/
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#include "nsTouchBarInputIcon.h"
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#include "nsCocoaUtils.h"
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#include "nsComputedDOMStyle.h"
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#include "nsContentUtils.h"
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#include "nsGkAtoms.h"
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#include "nsINode.h"
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#include "nsNameSpaceManager.h"
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#include "nsObjCExceptions.h"
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using namespace mozilla;
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static const uint32_t kIconSize = 16;
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static const CGFloat kHiDPIScalingFactor = 2.0f;
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nsTouchBarInputIcon::nsTouchBarInputIcon(RefPtr<Document> aDocument, NSButton* aButton,
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NSSharingServicePickerTouchBarItem* aShareScrubber,
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NSPopoverTouchBarItem* aPopoverItem)
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: mDocument(aDocument),
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mSetIcon(false),
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mButton(aButton),
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mShareScrubber(aShareScrubber),
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mPopoverItem(aPopoverItem) {
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MOZ_COUNT_CTOR(nsTouchBarInputIcon);
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}
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nsTouchBarInputIcon::~nsTouchBarInputIcon() {
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Destroy();
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MOZ_COUNT_DTOR(nsTouchBarInputIcon);
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}
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// Called from nsTouchBar's destructor, to prevent us from outliving it
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// (as might otherwise happen if calls to our imgINotificationObserver methods
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// are still outstanding). nsTouchBar owns our mTouchBarInput.
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void nsTouchBarInputIcon::Destroy() {
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if (mIconLoader) {
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mIconLoader->Destroy();
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mIconLoader = nullptr;
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}
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mButton = nil;
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mShareScrubber = nil;
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mPopoverItem = nil;
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}
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nsresult nsTouchBarInputIcon::SetupIcon(nsCOMPtr<nsIURI> aIconURI) {
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NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
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// We might not have a document if the Touch Bar tries to update when the main
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// window is closed.
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if (!mDocument) {
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return NS_OK;
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}
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if (!(mButton || mShareScrubber || mPopoverItem)) {
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NS_ERROR("No Touch Bar button");
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return NS_ERROR_FAILURE;
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}
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if (!mIconLoader) {
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// We ask only for the HiDPI images since all Touch Bars are Retina
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// displays and we have no need for icons @1x.
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mIconLoader = new nsIconLoaderService(mDocument, &mImageRegionRect, this, kIconSize, kIconSize,
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kHiDPIScalingFactor);
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if (!mIconLoader) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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}
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if (!mSetIcon) {
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// Load placeholder icon.
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[mButton setImage:mIconLoader->GetNativeIconImage()];
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[mShareScrubber setButtonImage:mIconLoader->GetNativeIconImage()];
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[mPopoverItem setCollapsedRepresentationImage:mIconLoader->GetNativeIconImage()];
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}
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nsresult rv = mIconLoader->LoadIcon(aIconURI);
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if (NS_FAILED(rv)) {
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// There is no icon for this menu item, as an error occurred while loading it.
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// An icon might have been set earlier or the place holder icon may have
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// been set. Clear it.
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[mButton setImage:nil];
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[mShareScrubber setButtonImage:nil];
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[mPopoverItem setCollapsedRepresentationImage:nil];
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}
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mSetIcon = true;
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return rv;
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NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
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}
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//
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// nsIconLoaderObserver
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//
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nsresult nsTouchBarInputIcon::OnComplete(NSImage* aImage) {
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[mButton setImage:aImage];
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[mShareScrubber setButtonImage:aImage];
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[mPopoverItem setCollapsedRepresentationImage:aImage];
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[aImage release];
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return NS_OK;
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}
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