mirror of
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134 lines
4.3 KiB
Plaintext
134 lines
4.3 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 "MOZIconHelper.h"
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#include "mozilla/dom/Document.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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using mozilla::widget::IconLoader;
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static const uint32_t kIconHeight = 16;
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static const CGFloat kHiDPIScalingFactor = 2.0f;
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nsTouchBarInputIcon::nsTouchBarInputIcon(RefPtr<Document> aDocument, TouchBarInput* aInput,
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NSTouchBarItem* aItem)
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: mDocument(aDocument), mSetIcon(false), mButton(nil), mShareScrubber(nil), mPopoverItem(nil) {
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if ([[aInput nativeIdentifier] isEqualToString:[TouchBarInput shareScrubberIdentifier]]) {
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mShareScrubber = (NSSharingServicePickerTouchBarItem*)aItem;
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} else if ([aInput baseType] == TouchBarInputBaseType::kPopover) {
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mPopoverItem = (NSPopoverTouchBarItem*)aItem;
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} else if ([aInput baseType] == TouchBarInputBaseType::kButton ||
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[aInput baseType] == TouchBarInputBaseType::kMainButton) {
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mButton = (NSButton*)[aItem view];
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} else {
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NS_ERROR("Incompatible Touch Bar input passed to nsTouchBarInputIcon.");
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}
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aInput = nil;
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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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ReleaseJSObjects();
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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_BLOCK_RETURN;
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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 input provided.");
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return NS_ERROR_FAILURE;
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}
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if (!mIconLoader) {
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mIconLoader = new IconLoader(this);
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}
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if (!mSetIcon) {
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// Load placeholder icon.
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NSSize iconSize = NSMakeSize(kIconHeight, kIconHeight);
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NSImage* placeholder = [MOZIconHelper placeholderIconWithSize:iconSize];
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[mButton setImage:placeholder];
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[mShareScrubber setButtonImage:placeholder];
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[mPopoverItem setCollapsedRepresentationImage:placeholder];
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}
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nsresult rv = mIconLoader->LoadIcon(aIconURI, mDocument, true /* aIsInternalIcon */);
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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_BLOCK_RETURN(NS_ERROR_FAILURE);
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}
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void nsTouchBarInputIcon::ReleaseJSObjects() { mDocument = nil; }
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//
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// mozilla::widget::IconLoader::Listener
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//
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nsresult nsTouchBarInputIcon::OnComplete(imgIContainer* aImage) {
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NS_OBJC_BEGIN_TRY_BLOCK_RETURN
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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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NSImage* image = [MOZIconHelper iconImageFromImageContainer:aImage
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withSize:NSMakeSize(kIconHeight, kIconHeight)
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computedStyle:nullptr
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subrect:mImageRegionRect
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scaleFactor:kHiDPIScalingFactor];
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[mButton setImage:image];
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[mShareScrubber setButtonImage:image];
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[mPopoverItem setCollapsedRepresentationImage:image];
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mIconLoader->Destroy();
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return NS_OK;
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NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE)
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}
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