web_config: add support for adding and editing abbreviations

Possible future enhancements include explanatory text and an image for
the 'save' action.

Work on #731.

share/tools/web_config/fishconfig.css

@@ -231,6 +231,12 @@ body {
 	border-bottom: #444 dotted 1px;
 }
 
+ .abbreviation_actions {
+	width: 5em;
+	text-align: right;
+	border-bottom: #444 dotted 1px;
+}
+
 /* The CSS we apply when a table row is filtered */
 .data_table_row_filtered {
 	display: none;

share/tools/web_config/js/controllers.js

@@ -287,10 +287,45 @@ controllers.controller("bindingsController", function($scope, $http) {
 
 controllers.controller("abbreviationsController", function($scope, $http) {
     $scope.abbreviations = [];
+    $scope.addBlank = function() {
+        // Add blank entry if it is missing
+        hasBlank = {hasBlank: false}
+        angular.forEach($scope.abbreviations, function(value, key) {
+            if (value.phrase === "" && value.word === "") {
+                this.hasBlank = true;
+            }
+        }, hasBlank);
+        if (! hasBlank.hasBlank) {
+            $scope.abbreviations.push({phrase: "", word: "", editable: true})
+        }
+    }
     $scope.fetchAbbreviations = function() {
         $http.get("abbreviations/").success(function(data, status, headers, config) {
             $scope.abbreviations = data;
+            $scope.addBlank();
     })};
 
+    $scope.editAbbreviation = function(abbreviation) {
+        abbreviation.editable = true;
+    }
+
+    $scope.saveAbbreviation = function(abbreviation) {
+        if (abbreviation.word && abbreviation.phrase) {
+            $http.post("save_abbreviation/", abbreviation).success(function(data, status, headers, config) {
+                abbreviation.editable = false;
+                $scope.addBlank();
+            });
+        }
+    };
+
+    $scope.removeAbbreviation = function(abbreviation) {
+        if (abbreviation.word) {
+            $http.post("remove_abbreviation/", abbreviation).success(function(data, status, headers, config) {
+                $scope.abbreviations.splice($scope.abbreviations.indexOf(abbreviation), 1);
+                $scope.addBlank();
+            });
+        }
+    };
+
     $scope.fetchAbbreviations();
 });

share/tools/web_config/partials/abbreviations.html

@@ -4,9 +4,19 @@
 
 <table class="data_table">
     <tbody>
-    <tr class="data_table_row" ng-repeat="abbreviation in abbreviations | filterAbbreviations:query">
+    <tr class="data_table_row" ng-repeat="abbreviation in abbreviations | filterAbbreviations:query" ng-click="editAbbreviation(abbreviation)">
-        <td ng-class="{ data_table_cell: true}" style="text-align: right; padding-right: 30px;" ng-click="abbreviation._is_selected = !abbreviation._is_selected">{{ abbreviation.word }}</td>
+        <td ng-class="{ data_table_cell: true }" style="text-align: right; padding-right: 30px;">
-        <td ng-class="{ data_table_cell: true}" style="text-align: left; padding-right: 30px;" ng-click="abbreviation._is_selected = !abbreviation._is_selected">{{ abbreviation.phrase }}</td>
+            <span ng-hide="abbreviation.editable">{{ abbreviation.word }}</span>
+            <span ng-show="abbreviation.editable"><input ng-model="abbreviation.word"></span>
+        </td>
+        <td ng-class="{ data_table_cell: true }" style="text-align: left; padding-right: 30px;">
+            <span ng-hide="abbreviation.editable">{{ abbreviation.phrase }}</span>
+            <span ng-show="abbreviation.editable"><input ng-model="abbreviation.phrase"></span>
+        </td>
+        <td ng-class="{ data_table_cell: true }" class="abbreviation_actions">
+            <span ng-show="abbreviation.editable && abbreviation.word && abbreviation.phrase" ng-click="saveAbbreviation(abbreviation)">Save</span>
+            <a ng-show="abbreviation.word" ng-click="removeAbbreviation(abbreviation)"><img alt="Delete" src="delete.png"></a>
+        </td>
     </tr>
     </tbody>
 </table>

share/tools/web_config/webconfig.py

@@ -699,6 +699,20 @@ class FishConfigHTTPRequestHandler(SimpleHTTPServer.SimpleHTTPRequestHandler):
             result = []
         return result
 
+    def do_remove_abbreviation(self, abbreviation):
+        out, err = run_fish_cmd('abbr -r %s' % abbreviation['word'])
+        if out or err:
+            return err
+        else:
+            return True
+
+    def do_save_abbreviation(self, abbreviation):
+        out, err = run_fish_cmd('abbr -a \'%s=%s\'' % (abbreviation['word'], abbreviation['phrase']))
+        if err:
+            return err
+        else:
+            return True
+
     def secure_startswith(self, haystack, needle):
         if len(haystack) < len(needle):
             return False
@@ -780,6 +794,10 @@ class FishConfigHTTPRequestHandler(SimpleHTTPServer.SimpleHTTPRequestHandler):
             length = int(self.headers['content-length'])
             url_str = self.rfile.read(length).decode('utf-8')
             postvars = cgi.parse_qs(url_str, keep_blank_values=1)
+        elif ctype == 'application/json':
+            length = int(self.headers['content-length'])
+            url_str = self.rfile.read(length).decode('utf-8')
+            postvars = json.loads(url_str)
         else:
             postvars = {}
 
@@ -810,12 +828,25 @@ class FishConfigHTTPRequestHandler(SimpleHTTPServer.SimpleHTTPRequestHandler):
                 output = ["OK"]
             else:
                 output = ["Unable to set prompt"]
+        elif p == '/save_abbreviation/':
+            r = self.do_save_abbreviation(postvars)
+            if r == True:
+                output = ["OK"]
+            else:
+                output = [r]
+        elif p == '/remove_abbreviation/':
+            r = self.do_remove_abbreviation(postvars)
+            if r == True:
+                output = ["OK"]
+            else:
+                output = [r]
         else:
             return self.send_error(404)
 
         # Return valid output
         self.send_response(200)
-        self.send_header('Content-type','text/html')
+        self.send_header('Content-type','application/json')
+        self.end_headers()
         self.write_to_wfile('\n')
 
         # Output JSON