Add icon to toggle whitespaces ignoring

Author: glconti

GitDiffMargin/GitDiffMargin.csproj

@@ -271,6 +271,7 @@
       <Link>LICENSE.md</Link>
       <IncludeInVSIX>true</IncludeInVSIX>
     </Content>
+    <Content Include="Resources\Ignore_whitespaces.png" />
     <None Include="packages.config">
       <SubType>Designer</SubType>
     </None>

GitDiffMargin/GitDiffMargin.vsct

@@ -80,6 +80,17 @@
           <ToolTipText>Copy Old Text</ToolTipText>
         </Strings>
       </Button>
+
+      <Button guid="GitDiffMarginCommand" id="IgnoreWhitespaces" priority="0x106" type="Button">
+        <Parent guid="GitDiffMarginCommand" id="GitDiffToolbarGroup" />
+        <Icon guid="IgnoreWhitespaces" id="1" />
+        <CommandFlag>DefaultDisabled</CommandFlag>
+        <Strings>
+          <ButtonText>Ignore whitespaces</ButtonText>
+          <MenuText>Ignore whitespaces</MenuText>
+          <ToolTipText>Ignore whitespaces</ToolTipText>
+        </Strings>
+      </Button>
     </Buttons>
 
     <Bitmaps>
@@ -88,6 +99,7 @@
       <Bitmap guid="IconRollback" href="Resources\Rollback.png"/>
       <Bitmap guid="IconShowDifference" href="Resources\ShowDifference.png"/>
       <Bitmap guid="IconCopyOldText" href="Resources\CopyOldText.png"/>
+      <Bitmap guid="IgnoreWhitespaces" href="Resources\Ignore_whitespaces.png" />
     </Bitmaps>
   </Commands>
 
@@ -100,6 +112,7 @@
       <IDSymbol name="RollbackChange" value="2" />
       <IDSymbol name="ShowDiff" value="3" />
       <IDSymbol name="CopyOldText" value="4" />
+      <IDSymbol name="IgnoreWhitespaces" value="5" />
 
       <IDSymbol name="GitDiffToolbar" value="100"/>
       <IDSymbol name="GitDiffToolbarGroup" value="150"/>
@@ -110,5 +123,6 @@
     <GuidSymbol name="IconRollback" value="{E4584E6D-3BB3-4141-80A7-9E22D028C41E}" />
     <GuidSymbol name="IconShowDifference" value="{E8011DB3-8E2C-4EEA-8C3D-0D33FB66EB12}" />
     <GuidSymbol name="IconCopyOldText" value="{269FF401-0A36-4E4B-8301-66FB58AA9835}" />
+    <GuidSymbol name="IgnoreWhitespaces" value="{72992790-BB19-4EC3-A4CE-7C2E6D9E539D}" />
   </Symbols>
-</CommandTable>
+</CommandTable>

GitDiffMargin/GitDiffMarginCommand.cs

@@ -10,6 +10,7 @@ public enum GitDiffMarginCommand
         RollbackChange = 2,
         ShowDiff = 3,
         CopyOldText = 4,
+        IgnoreWhiteSpaces = 5,
 
         GitDiffToolbar = 100,
 

GitDiffMargin/GitDiffMarginCommandHandler.cs

@@ -98,6 +98,19 @@ protected override OLECMDF QueryCommandStatus(ref Guid commandGroup, uint comman
                     // these aren't actually commands, but IDs of the command bars and groups
                     break;
 
+                case GitDiffMarginCommand.IgnoreWhiteSpaces:
+                    {
+                        EditorDiffMarginViewModel viewModel;
+                        if (!TryGetMarginViewModel(out viewModel) || !viewModel.HasDiffs)
+                            return 0;
+
+                        if (viewModel.IgnoreWhiteSpaces)
+                            return OLECMDF.OLECMDF_SUPPORTED | OLECMDF.OLECMDF_ENABLED | OLECMDF.OLECMDF_LATCHED;
+                        else
+                            return OLECMDF.OLECMDF_SUPPORTED | OLECMDF.OLECMDF_ENABLED;
+                    }
+                    break;
+
                 default:
                     break;
                 }
@@ -166,6 +179,14 @@ protected override bool HandlePreExec(ref Guid commandGroup, uint commandId, OLE
                     // these aren't actually commands, but IDs of the command bars and groups
                     break;
 
+                case GitDiffMarginCommand.IgnoreWhiteSpaces:
+                    {
+                        ICommand command = viewModel.ToggleIgnoreWhiteSpacesCommand;
+                        command.Execute(null);
+                        return true;
+                    }
+                    break;
+
                 default:
                     break;
                 }

GitDiffMargin/Resources/Ignore_whitespaces.png

@@ -24,6 +24,8 @@ protected DiffMarginViewModelBase(IMarginCore marginCore)
             MarginCore.HunksChanged += HandleHunksChanged;
         }
 
+        public bool HasDiffs { get; private set; }
+
         public ObservableCollection<DiffViewModel> DiffViewModels { get; private set; }
 
         public void RefreshDiffViewModelPositions()
@@ -38,7 +40,16 @@ protected virtual void HandleHunksChanged(object sender, HunksChangedEventArgs e
         {
             DiffViewModels.Clear();
 
-            foreach (var diffViewModel in e.Hunks.Select(CreateDiffViewModel))
+            HasDiffs = e.Hunks.Any();
+
+            var hunks = e.Hunks;
+
+            if (MarginCore.IgnoreWhiteSpaces)
+            {
+                hunks = hunks.Where(hunk => !hunk.IsWhiteSpaceChange);
+            }
+
+            foreach (var diffViewModel in hunks.Select(CreateDiffViewModel))
             {
                 DiffViewModels.Add(diffViewModel);
             }

GitDiffMargin/ViewModel/DiffMarginViewModelBase.cs

@@ -15,6 +15,7 @@ internal class EditorDiffMarginViewModel : DiffMarginViewModelBase
         private readonly Action<DiffViewModel, HunkRangeInfo> _updateDiffDimensions;
         private RelayCommand<DiffViewModel> _previousChangeCommand;
         private RelayCommand<DiffViewModel> _nextChangeCommand;
+        private RelayCommand _toggleIgnoreWhiteSpacesCommand;
 
         internal EditorDiffMarginViewModel(IMarginCore marginCore, Action<DiffViewModel, HunkRangeInfo> updateDiffDimensions) :
             base(marginCore)
@@ -25,6 +26,8 @@ internal EditorDiffMarginViewModel(IMarginCore marginCore, Action<DiffViewModel,
             _updateDiffDimensions = updateDiffDimensions;
         }
 
+        public bool IgnoreWhiteSpaces => MarginCore.IgnoreWhiteSpaces;
+
         public RelayCommand<DiffViewModel> PreviousChangeCommand
         {
             get { return _previousChangeCommand ?? (_previousChangeCommand = new RelayCommand<DiffViewModel>(PreviousChange, PreviousChangeCanExecute)); }
@@ -35,6 +38,11 @@ public RelayCommand<DiffViewModel> NextChangeCommand
             get { return _nextChangeCommand ?? (_nextChangeCommand = new RelayCommand<DiffViewModel>(NextChange, NextChangeCanExecute)); }
         }
 
+        public RelayCommand ToggleIgnoreWhiteSpacesCommand
+        {
+            get { return _toggleIgnoreWhiteSpacesCommand ?? (_toggleIgnoreWhiteSpacesCommand = new RelayCommand(ToggleIgnoreWhiteSpaces, CanExecuteToggleIgnoreWhiteSpaces)); }
+        }
+
         private bool PreviousChangeCanExecute(DiffViewModel currentEditorDiffViewModel)
         {
             return DiffViewModels.IndexOf(currentEditorDiffViewModel) > 0;
@@ -55,6 +63,16 @@ private void NextChange(DiffViewModel currentEditorDiffViewModel)
             MoveToChange(currentEditorDiffViewModel, +1);
         }
 
+        private void ToggleIgnoreWhiteSpaces()
+        {
+            MarginCore.ToggleIgnoreWhiteSpace();
+        }
+
+        private bool CanExecuteToggleIgnoreWhiteSpaces()
+        {
+            return true;
+        }
+
         public void MoveToChange(DiffViewModel currentDiffViewModel, int indexModifier)
         {
             var diffViewModelIndex = DiffViewModels.IndexOf(currentDiffViewModel) + indexModifier;