Remember last opened directory

Source/MainComponent.cpp

@@ -10,7 +10,7 @@ MainComponent::MainComponent(OscirenderAudioProcessor& p, OscirenderAudioProcess
     fileButton.setButtonText("Choose File(s)");
     
 	fileButton.onClick = [this] {
-		chooser = std::make_unique<juce::FileChooser>("Open", juce::File::getSpecialLocation(juce::File::userHomeDirectory), "*.obj;*.svg;*.lua;*.txt;*.gpla;*.gif;*.png;*.jpg;*.jpeg");
+		chooser = std::make_unique<juce::FileChooser>("Open", audioProcessor.lastOpenedDirectory, "*.obj;*.svg;*.lua;*.txt;*.gpla;*.gif;*.png;*.jpg;*.jpeg");
 		auto flags = juce::FileBrowserComponent::openMode | juce::FileBrowserComponent::canSelectMultipleItems |
             juce::FileBrowserComponent::canSelectFiles;
 
@@ -19,7 +19,8 @@ MainComponent::MainComponent(OscirenderAudioProcessor& p, OscirenderAudioProcess
 			bool fileAdded = false;
 			for (auto& url : chooser.getURLResults()) {
 				if (url.isLocalFile()) {
-					auto file = url.getLocalFile();
+					juce::File file = url.getLocalFile();
+                    audioProcessor.lastOpenedDirectory = file.getParentDirectory();
 					audioProcessor.addFile(file);
 					pluginEditor.addCodeEditor(audioProcessor.getCurrentFileIndex());
 					fileAdded = true;

Source/PluginEditor.cpp

@@ -476,7 +476,7 @@ void OscirenderAudioProcessorEditor::newProject() {
 }
 
 void OscirenderAudioProcessorEditor::openProject() {
-    chooser = std::make_unique<juce::FileChooser>("Load osci-render Project", juce::File::getSpecialLocation(juce::File::userHomeDirectory), "*.osci");
+    chooser = std::make_unique<juce::FileChooser>("Load osci-render Project", audioProcessor.lastOpenedDirectory, "*.osci");
     auto flags = juce::FileBrowserComponent::openMode |
         juce::FileBrowserComponent::canSelectFiles;
 
@@ -488,6 +488,7 @@ void OscirenderAudioProcessorEditor::openProject() {
                 audioProcessor.setStateInformation(data.getData(), data.getSize());
             }
             audioProcessor.currentProjectFile = file.getFullPathName();
+            audioProcessor.lastOpenedDirectory = file.getParentDirectory();
             updateTitle();
         }
     });

Source/PluginProcessor.h

@@ -241,6 +241,7 @@ public:
     // shouldn't be accessed by audio thread, but needs to persist when GUI is closed
     // so should only be accessed by message thread
     juce::String currentProjectFile;
+    juce::File lastOpenedDirectory = juce::File::getSpecialLocation(juce::File::userHomeDirectory);
 
     juce::SpinLock fontLock;
     juce::Font font = juce::Font(juce::Font::getDefaultSansSerifFontName(), 1.0f, juce::Font::plain);