367 lines
12 KiB
Plaintext
367 lines
12 KiB
Plaintext
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 5 End-User License
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Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
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27th April 2017).
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End User License Agreement: www.juce.com/juce-5-licence
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Privacy Policy: www.juce.com/juce-5-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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//==============================================================================
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static NSMutableArray* createAllowedTypesArray (const StringArray& filters)
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{
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if (filters.size() == 0)
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return nil;
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NSMutableArray* filterArray = [[[NSMutableArray alloc] init] autorelease];
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for (int i = 0; i < filters.size(); ++i)
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{
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#if defined (MAC_OS_X_VERSION_10_6) && (MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_6)
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// From OS X 10.6 you can only specify allowed extensions, so any filters containing wildcards
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// must be of the form "*.extension"
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jassert (filters[i] == "*"
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|| (filters[i].startsWith ("*.") && filters[i].lastIndexOfChar ('*') == 0));
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#endif
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const String f (filters[i].replace ("*.", ""));
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if (f == "*")
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return nil;
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[filterArray addObject: juceStringToNS (f)];
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}
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return filterArray;
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}
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//==============================================================================
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class FileChooser::Native : public Component,
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public FileChooser::Pimpl
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{
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public:
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Native (FileChooser& fileChooser, int flags, FilePreviewComponent* previewComponent)
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: owner (fileChooser), preview (previewComponent),
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selectsDirectories ((flags & FileBrowserComponent::canSelectDirectories) != 0),
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selectsFiles ((flags & FileBrowserComponent::canSelectFiles) != 0),
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isSave ((flags & FileBrowserComponent::saveMode) != 0),
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selectMultiple ((flags & FileBrowserComponent::canSelectMultipleItems) != 0),
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panel (isSave ? [[NSSavePanel alloc] init] : [[NSOpenPanel alloc] init])
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{
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setBounds (0, 0, 0, 0);
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setOpaque (true);
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static DelegateClass cls;
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delegate = [cls.createInstance() init];
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object_setInstanceVariable (delegate, "cppObject", this);
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[panel setDelegate: delegate];
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filters.addTokens (owner.filters.replaceCharacters (",:", ";;"), ";", String());
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filters.trim();
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filters.removeEmptyStrings();
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[panel setTitle: juceStringToNS (owner.title)];
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[panel setAllowedFileTypes: createAllowedTypesArray (filters)];
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if (! isSave)
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{
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NSOpenPanel* openPanel = (NSOpenPanel*) panel;
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[openPanel setCanChooseDirectories: selectsDirectories];
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[openPanel setCanChooseFiles: selectsFiles];
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[openPanel setAllowsMultipleSelection: selectMultiple];
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[openPanel setResolvesAliases: YES];
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if (owner.treatFilePackagesAsDirs)
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[openPanel setTreatsFilePackagesAsDirectories: YES];
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}
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if (preview != nullptr)
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{
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nsViewPreview = [[NSView alloc] initWithFrame: makeNSRect (preview->getLocalBounds())];
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preview->addToDesktop (0, (void*) nsViewPreview);
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preview->setVisible (true);
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[panel setAccessoryView: nsViewPreview];
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}
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if (isSave || selectsDirectories)
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[panel setCanCreateDirectories: YES];
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[panel setLevel:NSModalPanelWindowLevel];
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if (owner.startingFile.isDirectory())
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{
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startingDirectory = owner.startingFile.getFullPathName();
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}
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else
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{
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startingDirectory = owner.startingFile.getParentDirectory().getFullPathName();
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filename = owner.startingFile.getFileName();
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}
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#if defined (MAC_OS_X_VERSION_10_6) && (MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_6)
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[panel setDirectoryURL: createNSURLFromFile (startingDirectory)];
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[panel setNameFieldStringValue: juceStringToNS (filename)];
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#endif
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}
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~Native() override
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{
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exitModalState (0);
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removeFromDesktop();
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if (panel != nil)
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{
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[panel setDelegate: nil];
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if (nsViewPreview != nil)
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{
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[panel setAccessoryView: nil];
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[nsViewPreview release];
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nsViewPreview = nil;
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preview = nullptr;
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}
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[panel close];
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[panel release];
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}
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if (delegate != nil)
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{
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[delegate release];
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delegate = nil;
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}
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}
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void launch() override
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{
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if (panel != nil)
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{
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setAlwaysOnTop (juce_areThereAnyAlwaysOnTopWindows());
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addToDesktop (0);
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enterModalState (true);
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[panel beginWithCompletionHandler:CreateObjCBlock (this, &Native::finished)];
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}
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}
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void runModally() override
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{
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std::unique_ptr<TemporaryMainMenuWithStandardCommands> tempMenu;
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if (JUCEApplicationBase::isStandaloneApp())
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tempMenu.reset (new TemporaryMainMenuWithStandardCommands());
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jassert (panel != nil);
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#if defined (MAC_OS_X_VERSION_10_6) && (MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_6)
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auto result = [panel runModal];
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#else
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auto result = [panel runModalForDirectory: juceStringToNS (startingDirectory)
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file: juceStringToNS (filename)];
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#endif
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finished (result);
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}
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bool canModalEventBeSentToComponent (const Component* targetComponent) override
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{
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if (targetComponent == nullptr)
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return false;
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return targetComponent->findParentComponentOfClass<FilePreviewComponent>() != nullptr;
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}
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private:
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//==============================================================================
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#if defined (MAC_OS_X_VERSION_10_6) && MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6
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typedef NSObject<NSOpenSavePanelDelegate> DelegateType;
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#else
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typedef NSObject DelegateType;
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#endif
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void finished (NSInteger result)
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{
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Array<URL> chooserResults;
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exitModalState (0);
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if (panel != nil && result ==
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#if defined (MAC_OS_X_VERSION_10_9) && MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_9
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NSModalResponseOK)
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#else
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NSFileHandlingPanelOKButton)
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#endif
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{
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auto addURLResult = [&chooserResults] (NSURL* urlToAdd)
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{
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auto scheme = nsStringToJuce ([urlToAdd scheme]);
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auto pathComponents = StringArray::fromTokens (nsStringToJuce ([urlToAdd path]), "/", {});
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for (auto& component : pathComponents)
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component = URL::addEscapeChars (component, false);
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chooserResults.add (URL (scheme + "://" + pathComponents.joinIntoString ("/")));
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};
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if (isSave)
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{
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addURLResult ([panel URL]);
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}
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else
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{
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auto* openPanel = (NSOpenPanel*) panel;
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auto urls = [openPanel URLs];
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for (unsigned int i = 0; i < [urls count]; ++i)
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addURLResult ([urls objectAtIndex: i]);
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}
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}
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owner.finished (chooserResults);
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}
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bool shouldShowFilename (const String& filenameToTest)
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{
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const File f (filenameToTest);
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auto nsFilename = juceStringToNS (filenameToTest);
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for (int i = filters.size(); --i >= 0;)
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if (f.getFileName().matchesWildcard (filters[i], true))
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return true;
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#if (! defined (MAC_OS_X_VERSION_10_7)) || MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_7
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NSError* error;
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NSString* name = [[NSWorkspace sharedWorkspace] typeOfFile: nsFilename error: &error];
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if ([name isEqualToString: nsStringLiteral ("com.apple.alias-file")])
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{
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FSRef ref;
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FSPathMakeRef ((const UInt8*) [nsFilename fileSystemRepresentation], &ref, nullptr);
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Boolean targetIsFolder = false, wasAliased = false;
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FSResolveAliasFileWithMountFlags (&ref, true, &targetIsFolder, &wasAliased, 0);
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return wasAliased && targetIsFolder;
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}
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#endif
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return f.isDirectory()
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&& ! [[NSWorkspace sharedWorkspace] isFilePackageAtPath: nsFilename];
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}
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void panelSelectionDidChange (id sender)
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{
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// NB: would need to extend FilePreviewComponent to handle the full list rather than just the first one
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if (preview != nullptr)
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preview->selectedFileChanged (File (getSelectedPaths (sender)[0]));
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}
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static StringArray getSelectedPaths (id sender)
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{
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StringArray paths;
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if ([sender isKindOfClass: [NSOpenPanel class]])
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{
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NSArray* urls = [(NSOpenPanel*) sender URLs];
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for (NSUInteger i = 0; i < [urls count]; ++i)
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paths.add (nsStringToJuce ([[urls objectAtIndex: i] path]));
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}
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else if ([sender isKindOfClass: [NSSavePanel class]])
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{
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paths.add (nsStringToJuce ([[(NSSavePanel*) sender URL] path]));
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}
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return paths;
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}
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//==============================================================================
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FileChooser& owner;
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FilePreviewComponent* preview;
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NSView* nsViewPreview = nullptr;
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bool selectsDirectories, selectsFiles, isSave, selectMultiple;
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NSSavePanel* panel;
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DelegateType* delegate;
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StringArray filters;
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String startingDirectory, filename;
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//==============================================================================
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struct DelegateClass : ObjCClass<DelegateType>
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{
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DelegateClass() : ObjCClass <DelegateType> ("JUCEFileChooser_")
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{
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addIvar<Native*> ("cppObject");
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addMethod (@selector (panel:shouldShowFilename:), shouldShowFilename, "c@:@@");
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addMethod (@selector (panelSelectionDidChange:), panelSelectionDidChange, "c@");
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#if defined (MAC_OS_X_VERSION_10_6) && MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6
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addProtocol (@protocol (NSOpenSavePanelDelegate));
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#endif
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registerClass();
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}
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private:
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static BOOL shouldShowFilename (id self, SEL, id /*sender*/, NSString* filename)
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{
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auto* _this = getIvar<Native*> (self, "cppObject");
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return _this->shouldShowFilename (nsStringToJuce (filename)) ? YES : NO;
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}
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static void panelSelectionDidChange (id self, SEL, id sender)
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{
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auto* _this = getIvar<Native*> (self, "cppObject");
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_this->panelSelectionDidChange (sender);
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}
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};
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (Native)
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};
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FileChooser::Pimpl* FileChooser::showPlatformDialog (FileChooser& owner, int flags,
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FilePreviewComponent* preview)
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{
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return new FileChooser::Native (owner, flags, preview);
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}
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bool FileChooser::isPlatformDialogAvailable()
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{
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#if JUCE_DISABLE_NATIVE_FILECHOOSERS
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return false;
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#else
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return true;
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#endif
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}
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}
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