query open documents

apps/file_manager/ui.cpp

@@ -823,6 +823,20 @@ int ListCallback(EsElement *element, EsMessage *message) {
 		ListItemCreated(element, message->createItem.index, false);
 	} else if (message->type == ES_MSG_LIST_VIEW_CONTEXT_MENU) {
 		EsMenu *menu = EsMenuCreate(element, ES_MENU_AT_CURSOR);
+		EsOpenDocumentInformation information;
+		ListEntry *entry = &instance->listContents[message->selectItem.index];
+		String path = instance->folder->itemHandler->getPathForChild(instance->folder, entry->entry);
+		EsOpenDocumentQueryInformation(STRING(path), &information);
+		StringDestroy(&path);
+
+		if (information.isOpen) {
+			char buffer[256];
+			size_t bytes = EsStringFormat(buffer, sizeof(buffer), interfaceString_FileManagerFileOpenIn, 
+					(size_t) information.applicationNameBytes, (const char *) information.applicationName);
+			EsMenuAddItem(menu, ES_MENU_ITEM_HEADER, buffer, bytes);
+			EsMenuAddSeparator(menu);
+		}
+
 		EsMenuAddCommand(menu, ES_FLAGS_DEFAULT, INTERFACE_STRING(CommonClipboardCut), EsCommandByID(instance, ES_COMMAND_CUT));
 		EsMenuAddCommand(menu, ES_FLAGS_DEFAULT, INTERFACE_STRING(CommonClipboardCopy), EsCommandByID(instance, ES_COMMAND_COPY));
 		EsMenuAddSeparator(menu);

desktop/api.cpp

@@ -51,15 +51,16 @@ struct EnumString { const char *cName; int value; };
 #define DESKTOP_MSG_RUN_TEMPORARY_APPLICATION (7)
 #define DESKTOP_MSG_REQUEST_SHUTDOWN          (8)
 #define DESKTOP_MSG_START_APPLICATION         (9)
-#define DESKTOP_MSG_CREATE_CLIPBOARD_FILE     (10)
-#define DESKTOP_MSG_CLIPBOARD_PUT             (11)
-#define DESKTOP_MSG_CLIPBOARD_GET             (12)
-#define DESKTOP_MSG_SYSTEM_CONFIGURATION_GET  (13)
-#define DESKTOP_MSG_FILE_TYPES_GET            (14)
-#define DESKTOP_MSG_START_USER_TASK           (16)
-#define DESKTOP_MSG_SET_PROGRESS              (17)
-#define DESKTOP_MSG_RENAME                    (18)
-#define DESKTOP_MSG_SET_MODIFIED              (19)
+#define DESKTOP_MSG_CREATE_CLIPBOARD_FILE    (10)
+#define DESKTOP_MSG_CLIPBOARD_PUT            (11)
+#define DESKTOP_MSG_CLIPBOARD_GET            (12)
+#define DESKTOP_MSG_SYSTEM_CONFIGURATION_GET (13)
+#define DESKTOP_MSG_FILE_TYPES_GET           (14)
+#define DESKTOP_MSG_START_USER_TASK          (16)
+#define DESKTOP_MSG_SET_PROGRESS             (17)
+#define DESKTOP_MSG_RENAME                   (18)
+#define DESKTOP_MSG_SET_MODIFIED             (19)
+#define DESKTOP_MSG_QUERY_OPEN_DOCUMENT      (20)
 
 struct EsFileStore {
 #define FILE_STORE_HANDLE        (1)
@@ -620,6 +621,19 @@ void _EsPathAnnouncePathMoved(const char *oldPath, ptrdiff_t oldPathBytes, const
 	}
 }
 
+void EsOpenDocumentQueryInformation(const char *path, ptrdiff_t pathBytes, EsOpenDocumentInformation *information) {
+	if (pathBytes == -1) pathBytes = EsCStringLength(path);
+	char *buffer = (char *) EsHeapAllocate(pathBytes + 1, false);
+
+	if (buffer) {
+		buffer[0] = DESKTOP_MSG_QUERY_OPEN_DOCUMENT;
+		EsMemoryCopy(buffer + 1, path, pathBytes);
+		EsBuffer response = { .out = (uint8_t *) information, .bytes = sizeof(EsOpenDocumentInformation) };
+		MessageDesktop(buffer, pathBytes + 1, ES_INVALID_HANDLE, &response);
+		EsHeapFree(buffer);
+	}
+}
+
 void EsApplicationRunTemporary(EsInstance *instance, const char *path, ptrdiff_t pathBytes) {
 	if (pathBytes == -1) pathBytes = EsCStringLength(path);
 	char *buffer = (char *) EsHeapAllocate(pathBytes + 1, false);

desktop/desktop.cpp

@@ -2691,6 +2691,42 @@ void DesktopSyscall(EsMessage *message, uint8_t *buffer, EsBuffer *pipe) {
 
 		desktop.allOngoingUserTasks.Add(instance);
 		TaskBarTasksButtonUpdate();
+	} else if (buffer[0] == DESKTOP_MSG_QUERY_OPEN_DOCUMENT) {
+		InstalledApplication *application = ApplicationFindByPID(message->desktop.processID);
+
+		if (application && (application->permissions & APPLICATION_PERMISSION_ALL_FILES)) {
+			EsObjectID id = 0;
+
+			for (uintptr_t i = 0; i < desktop.openDocuments.Count(); i++) {
+				OpenDocument *document = &desktop.openDocuments[i];
+
+				if (0 == EsStringCompare(document->path, document->pathBytes, (char *) buffer + 1, message->desktop.bytes - 1)) {
+					id = document->id;
+					break;
+				}
+			}
+
+			EsOpenDocumentInformation information;
+			EsMemoryZero(&information, sizeof(information));
+
+			if (id) {
+				information.isOpen = true;
+
+				for (uintptr_t i = 0; i < desktop.allApplicationInstances.Length(); i++) {
+					ApplicationInstance *instance = desktop.allApplicationInstances[i];
+
+					if (instance->documentID == id) {
+						information.isModified = instance->tab && (instance->tab->closeButton->customStyleState & THEME_STATE_CHECKED);
+						information.applicationNameBytes = MinimumInteger(EsCStringLength(instance->application->cName), 
+								sizeof(information.applicationName));
+						EsMemoryCopy(information.applicationName, instance->application->cName, information.applicationNameBytes);
+						break;
+					}
+				}
+			}
+
+			EsBufferWrite(pipe, &information, sizeof(information));
+		}
 	} else if (!instance) {
 		// -------------------------------------------------
 		// | Messages below here require a valid instance. |

desktop/gui.cpp

@@ -4171,10 +4171,6 @@ void EsMenuAddItem(EsMenu *menu, uint64_t flags, const char *label, ptrdiff_t la
 	};
 
 	button->menuItemContext = context;
-
-	if (flags & ES_MENU_ITEM_CHECKED) {
-		EsButtonSetCheck(button, ES_CHECK_CHECKED);
-	}
 }
 
 void EsMenuAddCommand(EsMenu *menu, uint64_t flags, const char *label, ptrdiff_t labelBytes, EsCommand *command) {

desktop/os.header

@@ -504,7 +504,7 @@ define ES_BUTTON_CHECKBOX			(1 << 10)
 define ES_BUTTON_RADIOBOX			(1 << 11)
 define ES_BUTTON_CANCEL				(1 << 12)
 define ES_BUTTON_PUSH				(1 << 13)
-define ES_MENU_ITEM_CHECKED			(1 << 14)
+define ES_MENU_ITEM_CHECKED			(ES_CHECK_CHECKED)
 
 define ES_COLOR_WELL_HAS_OPACITY		(1 << 0)
 
@@ -1896,6 +1896,12 @@ struct EsBlockDeviceInformation {
 	char model[64];
 };
 
+struct EsOpenDocumentInformation {
+	bool isOpen, isModified;
+	uint8_t applicationNameBytes;
+	char applicationName[128];
+};
+
 // Function pointer types.
 
 function_pointer void EsThreadEntryCallback(EsGeneric argument);
@@ -1980,10 +1986,11 @@ function bool EsFileStoreAppend(EsFileStore *file, const void *data, size_t data
 function EsFileOffsetDifference EsFileStoreGetSize(EsFileStore *file); // Returns -1 on error.
 function void *EsFileStoreMap(EsFileStore *file, size_t *fileSize, uint32_t flags);
 
-// Requires permission_all_files.
+// These calls require permission_all_files.
 function bool EsMountPointGetVolumeInformation(const char *prefix, size_t prefixBytes, EsVolumeInformation *information); // Returns false if the mount point does not exist.
 function void EsMountPointEnumerate(EsMountPointEnumerationCallback callback, EsGeneric context);
 function void _EsPathAnnouncePathMoved(STRING oldPath, STRING newPath);
+function void EsOpenDocumentQueryInformation(STRING filePath, EsOpenDocumentInformation *information);
 
 function void EsDeviceEnumerate(EsDeviceEnumerationCallback callback, EsGeneric context);
 function EsError EsDeviceControl(EsHandle handle, EsDeviceControlType type, void *dp, void *dq);

shared/strings.cpp

@@ -306,6 +306,7 @@ DEFINE_INTERFACE_STRING(FileManagerMoveTask, "Moving" ELLIPSIS);
 DEFINE_INTERFACE_STRING(FileManagerGoBack, "Go back");
 DEFINE_INTERFACE_STRING(FileManagerGoForwards, "Go forwards");
 DEFINE_INTERFACE_STRING(FileManagerGoUp, "Go to containing folder");
+DEFINE_INTERFACE_STRING(FileManagerFileOpenIn, "File is open in " OPEN_SPEECH "%s" CLOSE_SPEECH);
 
 // 2048.
 

util/api_table.ini

@@ -475,3 +475,4 @@ EsCRTatod=473
 EsCRTatof=474
 EsCRTstrtod=475
 EsCRTstrtof=476
+EsOpenDocumentQueryInformation=477