Added text search filter

src/mainwindow.c

@@ -11,7 +11,9 @@ enum {
 	COL_COUNT
 };
 
-
+/**
+ * @brief The dateFormats struct contains regex/date-info pairs to parse different date formats.
+ */
 struct dateFormats {
 	gchar *regex;
 	guint index_count;
@@ -59,7 +61,7 @@ struct dateFormats {
 };
 
 /**
- * @brief Tries to guess the date format used and converts it to GDateTime.
+ * @brief mainWindow_get_date_from_string tries to guess the date format used and converts it to GDateTime.
  * @param Input string.
  * @return A GDateTime object or NULL on error. You need to free it after use.
  */
@@ -113,7 +115,9 @@ static GDateTime *mainWindow_get_date_from_string(gchar *string)
 }
 
 /**
- * Returns: The string, needs to be freed using g_free().
+ * @brief mainWindow_taglist_to_string concatenates a list with commas
+ * @param list is a GList of strings to concatenate
+ * @return The string, it needs to be freed using g_free().
  */
 static gchar *mainWindow_taglist_to_string(GList *list)
 {
@@ -136,7 +140,12 @@ static gchar *mainWindow_taglist_to_string(GList *list)
 }
 
 /**
- * Note: This function creates a copyof each argument.
+ * @brief mainWindow_list_add_entry adds a diary entry to the main store. All parameters are duplicated.
+ * @param mainWindow struct mainWindow *
+ * @param title entry title
+ * @param datetime entry date time
+ * @param tags string list of tags
+ * @param text MD source of the entry
  */
 static void mainWindow_list_add_entry(struct mainWindow *mainWindow,
 				      gchar *title,
@@ -164,11 +173,50 @@ static void mainWindow_list_add_entry(struct mainWindow *mainWindow,
 	g_free(date_text);
 }
 
+/**
+ * @brief mainWindow_list_entry_visible checks whether the entry should be displayed.
+ * @param model N/A
+ * @param iter N/A
+ * @param mainWindow struct mainWindow *
+ * @return True when it should displayed, else false.
+ */
 static gboolean mainWindow_list_entry_visible(GtkTreeModel *model, GtkTreeIter *iter, struct mainWindow *mainWindow)
 {
+	GRegex *regex;
+	GMatchInfo *match_info;
+	gchar *searchString;
+	gchar *temp;
+
+	gboolean search_matched = 0;
+
 	GDateTime *datetime;
 	guint time;
 
+	/* Check text search */
+	searchString = (gchar *)gtk_entry_get_text(GTK_ENTRY(mainWindow->searchEntry));
+	if (searchString[0] != 0) {
+		regex = g_regex_new(searchString, G_REGEX_CASELESS, 0, NULL);
+
+		gtk_tree_model_get(model, iter, COL_TEXT, &temp, -1);
+		if (g_regex_match(regex, temp, 0, &match_info) && g_match_info_matches(match_info))
+			search_matched = 1;
+		g_free(temp);
+
+		gtk_tree_model_get(model, iter, COL_TAGS_TEXT, &temp, -1);
+		if (g_regex_match(regex, temp, 0, &match_info) && g_match_info_matches(match_info))
+			search_matched = 1;
+		g_free(temp);
+
+		gtk_tree_model_get(model, iter, COL_TITLE, &temp, -1);
+		if (g_regex_match(regex, temp, 0, &match_info) && g_match_info_matches(match_info))
+			search_matched = 1;
+		g_free(temp);
+
+		if (!search_matched)
+			return 0;
+	}
+
+	/* Check time span */
 	gtk_tree_model_get(model, iter, COL_TIMESTAMP, &datetime, -1);
 	if (datetime) {
 		time = g_date_time_to_unix(datetime);
@@ -178,6 +226,14 @@ static gboolean mainWindow_list_entry_visible(GtkTreeModel *model, GtkTreeIter *
 	}
 }
 
+/**
+ * @brief mainWindow_sort_date_compare_func Compares the two GDateTimes from the main store.
+ * @param model N/A
+ * @param a N/A
+ * @param b N/A
+ * @param userdata N/A
+ * @return  N/A
+ */
 static gint mainWindow_sort_date_compare_func(GtkTreeModel *model,
 					      GtkTreeIter  *a,
 					      GtkTreeIter  *b,
@@ -201,7 +257,10 @@ static gint mainWindow_sort_date_compare_func(GtkTreeModel *model,
 		return -1;
 }
 
-
+/**
+ * @brief mainWindow_configure_treeView configures GtkTreeView
+ * @param mainWindow struct mainWindow *
+ */
 static void mainWindow_configure_treeView(struct mainWindow *mainWindow)
 {
 	GtkCellRenderer *renderer;
@@ -261,7 +320,6 @@ static void mainWindow_configure_treeView(struct mainWindow *mainWindow)
 	/*
 	 * Test entries for debugging only
 	 */
-
 	GDateTime *dt;
 	GList *list = NULL;
 
@@ -282,6 +340,10 @@ static void mainWindow_configure_treeView(struct mainWindow *mainWindow)
 	g_date_time_unref(dt);
 }
 
+/**
+ * @brief mainWindow_connect_signals connects are g signals
+ * @param mainWindow struct mainWindow *
+ */
 static void mainWindow_connect_signals(struct mainWindow *mainWindow)
 {
 	g_signal_connect(mainWindow->dateStart,
@@ -308,11 +370,11 @@ static void mainWindow_connect_signals(struct mainWindow *mainWindow)
 
 	g_signal_connect(mainWindow->dateStart,
 			 "changed",
-			 (GCallback) mainWindow_dateChanged,
+			 (GCallback) mainWindow_filterChanged,
 			 mainWindow);
 	g_signal_connect(mainWindow->dateEnd,
 			 "changed",
-			 (GCallback) mainWindow_dateChanged,
+			 (GCallback) mainWindow_filterChanged,
 			 mainWindow);
 
 	g_signal_connect(mainWindow->dateStart,
@@ -323,8 +385,17 @@ static void mainWindow_connect_signals(struct mainWindow *mainWindow)
 			 "focus-out-event",
 			 (GCallback) mainWindow_checkDate,
 			 mainWindow);
+
+	g_signal_connect(mainWindow->searchEntry,
+			 "changed",
+			 (GCallback) mainWindow_filterChanged,
+			 mainWindow);
 }
 
+/**
+ * @brief mainWindow_new creates a new mainWindow.
+ * @return Returns struct mainWindow *
+ */
 struct mainWindow *mainWindow_new()
 {
 	GtkBuilder *builder;
@@ -364,18 +435,29 @@ struct mainWindow *mainWindow_new()
 	return mainWindow;
 }
 
+/**
+ * @brief mainWindow_chooseWorkspaceClicked is called when the user clicks the Choose Workspace button.
+ * @param widget N/A
+ * @param event N/A
+ * @param user_data struct mainWindow *
+ */
 void mainWindow_chooseWorkspaceClicked(GtkWidget *widget, gint event, gpointer user_data)
 {
 	printf("Choose workspace.\n");
 	fflush(stdout);
 }
 
+/**
+ * @brief mainWindow_showPopover is called from a dateEntry when it is focused.
+ * @param widget is the text entry.
+ * @param event N/A
+ * @param user_data struct mainWindow *
+ */
 void mainWindow_showPopover(GtkWidget *widget, GdkEvent *event, gpointer user_data)
 {
 	struct mainWindow *mainWindow = (struct mainWindow *)user_data;
 	GDateTime *datetime;
 
-
 	mainWindow->selectedDateEntry = NULL;
 
 	datetime = g_date_time_new_from_unix_local((widget == mainWindow->dateStart
@@ -398,6 +480,11 @@ void mainWindow_showPopover(GtkWidget *widget, GdkEvent *event, gpointer user_da
 	gtk_popover_set_relative_to(GTK_POPOVER(mainWindow->popoverDate), widget);
 }
 
+/**
+ * @brief mainWindow_calendarSelected is the callback when the user selects a date in the calendar.
+ * @param widget is the calendar.
+ * @param user_data struct mainWindow *
+ */
 void mainWindow_calendarSelected(GtkWidget *widget, gpointer user_data)
 {
 	struct mainWindow *mainWindow = (struct mainWindow *)user_data;
@@ -412,6 +499,11 @@ void mainWindow_calendarSelected(GtkWidget *widget, gpointer user_data)
 	}
 }
 
+/**
+ * @brief mainWindow_entrySelected is the callback when the user selects a diary entry.
+ * @param widget N/A
+ * @param user_data struct mainWindow *
+ */
 void mainWindow_entrySelected(GtkWidget *widget, gpointer user_data)
 {
 	struct mainWindow *mainWindow = (struct mainWindow *)user_data;
@@ -429,25 +521,42 @@ void mainWindow_entrySelected(GtkWidget *widget, gpointer user_data)
 	}
 }
 
-void mainWindow_dateChanged(GtkWidget *widget, gpointer user_data)
+/**
+ * @brief mainWindow_filterChanged updates the filter backend values
+ * @param widget The widget that caused the update request. Can be NULL to update all.
+ * @param user_data struct mainWindow *
+ */
+void mainWindow_filterChanged(GtkWidget *widget, gpointer user_data)
 {
 	GDateTime *datetime;
 	struct mainWindow *mainWindow = (struct mainWindow *)user_data;
 
-	datetime = mainWindow_get_date_from_string((gchar *)gtk_entry_get_text(GTK_ENTRY(mainWindow->dateStart)));
+	if (!widget || widget == mainWindow->dateStart) {
+		datetime = mainWindow_get_date_from_string((gchar *)gtk_entry_get_text(
+								   GTK_ENTRY(mainWindow->dateStart)));
 		if (datetime) {
 			mainWindow->filterSettings.time_start = g_date_time_to_unix(datetime);
 			g_date_time_unref(datetime);
 		}
-	datetime = mainWindow_get_date_from_string((gchar *)gtk_entry_get_text(GTK_ENTRY(mainWindow->dateEnd)));
+	}
+	if (!widget || widget == mainWindow->dateEnd) {
+		datetime = mainWindow_get_date_from_string((gchar *)gtk_entry_get_text(
+								   GTK_ENTRY(mainWindow->dateEnd)));
 		if (datetime) {
 			mainWindow->filterSettings.time_end = g_date_time_to_unix(datetime);
 			g_date_time_unref(datetime);
 		}
+	}
 
 	gtk_tree_model_filter_refilter(mainWindow->entryListFiltered);
 }
 
+/**
+ * @brief mainWindow_checkDate checks the date in a text box and resets it if necessary.
+ * @param widget is the GtkEntry to be checked.
+ * @param event N/A
+ * @param user_data struct mainWindow *
+ */
 void mainWindow_checkDate(GtkWidget *widget, gint event, gpointer user_data)
 {
 	struct mainWindow *mainWindow = (struct mainWindow *)user_data;

src/mainwindow.h

@@ -34,7 +34,7 @@ void mainWindow_showPopover(GtkWidget *widget, GdkEvent *event, gpointer user_da
 void mainWindow_chooseWorkspaceClicked(GtkWidget *widget, gint event, gpointer user_data);
 void mainWindow_calendarSelected(GtkWidget *widget, gpointer user_data);
 void mainWindow_entrySelected(GtkWidget *widget, gpointer user_data);
-void mainWindow_dateChanged(GtkWidget *widget, gpointer user_data);
+void mainWindow_filterChanged(GtkWidget *widget, gpointer user_data);
 void mainWindow_checkDate(GtkWidget *widget, gint event, gpointer user_data);
 
 #endif /* MAINWINDOW_H */