*Improved asset corruption notification.

src/asset.h

@@ -167,7 +167,9 @@ class Asset : public NonCopyable {
 	bool revertible(void) const;
 
 	/**
-	 * @brief Gets whether the asset is referencing.
+	 * @brief Gets whether the asset would reference another.
+	 *
+	 * @return The possible referencing type.
 	 */
 	unsigned referencing(void) const;
 

src/theme.cpp

@@ -290,6 +290,7 @@ bool Theme::open(class Renderer* rnd) {
 	dialogItem_InputAnimationName("Input animation name:");
 	dialogItem_InputAssetName("Input asset name:");
 	dialogItem_InputInterval("Input interval:");
+	dialogItem_InvalidAssetOrCorruptData("Invalid asset or corrupt data: \"%s\".");
 	dialogItem_MapSize("Map size:");
 	dialogItem_Palette("Palette:");
 	dialogItem_Path("Path:");

src/theme.h

@@ -220,6 +220,7 @@ class Theme {
 	BITTY_PROPERTY_READONLY(std::string, dialogItem_InputAnimationName)
 	BITTY_PROPERTY_READONLY(std::string, dialogItem_InputAssetName)
 	BITTY_PROPERTY_READONLY(std::string, dialogItem_InputInterval)
+	BITTY_PROPERTY_READONLY(std::string, dialogItem_InvalidAssetOrCorruptData)
 	BITTY_PROPERTY_READONLY(std::string, dialogItem_MapSize)
 	BITTY_PROPERTY_READONLY(std::string, dialogItem_Palette)
 	BITTY_PROPERTY_READONLY(std::string, dialogItem_Path)

src/workspace.cpp

@@ -1839,8 +1839,12 @@ void Workspace::editing(class Window* wnd, class Renderer* rnd, const class Proj
 
 								asset->prepare(Asset::EDITING, false);
 
-								if (!asset->object(Asset::EDITING))
-									resolveAssetRef(wnd, rnd, project, asset->entry().c_str());
+								if (!asset->object(Asset::EDITING)) {
+									if (asset->referencing())
+										resolveAssetRef(wnd, rnd, project, asset->entry().c_str());
+									else
+										notifyAssetCorrupt(wnd, rnd, project, asset->entry().c_str());
+								}
 
 								editor = asset->editor();
 
@@ -3577,6 +3581,34 @@ void Workspace::resolveAssetRef(class Window* /* wnd */, class Renderer* rnd, co
 		);
 }
 
+void Workspace::notifyAssetCorrupt(class Window* /* wnd */, class Renderer* /* rnd */, const class Project* project, const char* asset_) {
+	LockGuard<RecursiveMutex>::UniquePtr acquired;
+	Project* prj = project->acquire(acquired);
+	if (!prj)
+		return;
+
+	Asset* asset = prj->get(asset_);
+	if (!asset)
+		return;
+
+	const std::string entry = asset->entry().name();
+
+	const std::string msg = Text::cformat(theme()->dialogItem_InvalidAssetOrCorruptData().c_str(), entry.c_str());
+	error(msg.c_str());
+
+	Asset::States* states = asset->states();
+	states->deactivate();
+
+	asset->finish(Asset::EDITING, false);
+
+	messagePopupBox(
+		msg,
+		nullptr,
+		nullptr,
+		nullptr
+	);
+}
+
 void Workspace::beginSplash(class Window* wnd, class Renderer* rnd, const class Project* project) {
 #if BITTY_SPLASH_ENABLED
 	if (workspaceHasSplashImage()) {

src/workspace.h

@@ -628,6 +628,7 @@ class Workspace : public Executable::Observer, public Dispatchable, public NonCo
 	void resizeAssetTile(class Window* wnd, class Renderer* rnd, const class Project* project, Asset::List::Index index);
 	void rebindAssetRef(class Window* wnd, class Renderer* rnd, const class Project* project, Asset::List::Index index);
 	void resolveAssetRef(class Window* wnd, class Renderer* rnd, const class Project* project, const char* asset);
+	void notifyAssetCorrupt(class Window* wnd, class Renderer* rnd, const class Project* project, const char* asset);
 
 	void beginSplash(class Window* wnd, class Renderer* rnd, const class Project* project);
 	void endSplash(class Window* wnd, class Renderer* rnd, const Text::Dictionary &options);