WebUI: Implement removing unused categories

src/webui/webapplication.cpp

@@ -116,7 +116,7 @@ QMap<QString, QMap<QString, WebApplication::Action> > WebApplication::initialize
     ADD_ACTION(command, recheck);
     ADD_ACTION(command, setCategory);
     ADD_ACTION(command, addCategory);
-    ADD_ACTION(command, removeCategory);
+    ADD_ACTION(command, removeCategories);
     ADD_ACTION(command, getSavePath);
     ADD_ACTION(version, api);
     ADD_ACTION(version, api_min);
@@ -745,13 +745,14 @@ void WebApplication::action_command_addCategory()
     BitTorrent::Session::instance()->addCategory(category);
 }
 
-void WebApplication::action_command_removeCategory()
+void WebApplication::action_command_removeCategories()
 {
     CHECK_URI(0);
-    CHECK_PARAMETERS("category");
+    CHECK_PARAMETERS("categories");
 
-    QString category = request().posts["category"].trimmed();
-    BitTorrent::Session::instance()->removeCategory(category);
+    QStringList categories = request().posts["categories"].split('\n');
+    foreach (const QString &category, categories)
+        BitTorrent::Session::instance()->removeCategory(category);
 }
 
 void WebApplication::action_command_getSavePath()

src/webui/webapplication.h

@@ -89,7 +89,7 @@ private:
     void action_command_recheck();
     void action_command_setCategory();
     void action_command_addCategory();
-    void action_command_removeCategory();
+    void action_command_removeCategories();
     void action_command_getSavePath();
     void action_version_api();
     void action_version_api_min();

src/webui/www/private/index.html

@@ -128,6 +128,7 @@
     <ul id="categoriesFilterMenu" class="contextMenu">
         <li><a href="#CreateCategory"><img src="theme/list-add" alt="QBT_TR(Add category...)QBT_TR"/> QBT_TR(Add category...)QBT_TR</a></li>
         <li><a href="#DeleteCategory"><img src="theme/list-remove" alt="QBT_TR(Remove category)QBT_TR"/> QBT_TR(Remove category)QBT_TR</a></li>
+        <li><a href="#DeleteUnusedCategories"><img src="theme/list-remove" alt="QBT_TR(Remove unused categories)QBT_TR"/> QBT_TR(Remove unused categories)QBT_TR</a></li>
     </ul>
     <div id="desktopFooterWrapper">
         <div id="desktopFooter">

src/webui/www/public/filters.html

@@ -25,6 +25,9 @@
             },
             DeleteCategory : function (element, ref) {
                 removeCategoryFN(element.id);
+            },
+            DeleteUnusedCategories : function (element, ref) {
+                deleteUnusedCategoriesFN();
             }
         },
         offsets : {

src/webui/www/public/scripts/client.js

@@ -203,7 +203,7 @@ window.addEvent('load', function () {
     };
 
     var updateFilter = function(filter, filterTitle) {
-        $(filter + '_filter').firstChild.childNodes[1].nodeValue = filterTitle.replace('%1', torrentsTable.getFilteredTorrentsNumber(filter));
+        $(filter + '_filter').firstChild.childNodes[1].nodeValue = filterTitle.replace('%1', torrentsTable.getFilteredTorrentsNumber(filter, CATEGORIES_ALL));
     };
 
     var updateFiltersList = function() {

src/webui/www/public/scripts/dynamicTable.js

@@ -620,7 +620,7 @@ var TorrentsTable = new Class({
             };
         },
 
-        applyFilter : function (row, filterName, categoryName) {
+        applyFilter : function (row, filterName, categoryHash) {
             var state = row['full_data'].state;
             var inactive = false;
             var r;
@@ -662,25 +662,24 @@ var TorrentsTable = new Class({
                     break;
             }
 
-            if (categoryName == CATEGORIES_ALL)
+            if (categoryHash == CATEGORIES_ALL)
                 return true;
 
-            if (categoryName == CATEGORIES_UNCATEGORIZED && row['full_data'].category.length === 0)
+            if (categoryHash == CATEGORIES_UNCATEGORIZED && row['full_data'].category.length === 0)
                 return true;
 
-            if (categoryName != genHash(row['full_data'].category))
+            if (categoryHash != genHash(row['full_data'].category))
                 return false;
 
             return true;
         },
 
-        getFilteredTorrentsNumber : function (filterName) {
+        getFilteredTorrentsNumber : function (filterName, categoryHash) {
             var cnt = 0;
             var rows = this.rows.getValues();
 
             for (i = 0; i < rows.length; i++)
-                if (this.applyFilter(rows[i], filterName, CATEGORIES_ALL)) cnt++;
-
+                if (this.applyFilter(rows[i], filterName, categoryHash)) cnt++;
             return cnt;
         },
 

src/webui/www/public/scripts/mocha-init.js

@@ -360,10 +360,26 @@ initializeWindows = function() {
     removeCategoryFN = function (categoryHash) {
         var categoryName = category_list[categoryHash].name;
         new Request({
-            url: 'command/removeCategory',
+            url: 'command/removeCategories',
             method: 'post',
             data: {
-                category: categoryName
+                categories: categoryName
+            }
+        }).send();
+        setCategoryFilter(CATEGORIES_ALL);
+    };
+
+    deleteUnusedCategoriesFN = function () {
+        var categories = [];
+        for (var hash in category_list) {
+            if (torrentsTable.getFilteredTorrentsNumber('all', hash) == 0)
+                categories.push(category_list[hash].name);
+        }
+        new Request({
+            url: 'command/removeCategories',
+            method: 'post',
+            data: {
+                categories: categories.join('\n')
             }
         }).send();
         setCategoryFilter(CATEGORIES_ALL);