IDE: Update ComponentList after component visibility in Palette changed. Issue #23541.

components/ideintf/componentreg.pas

@@ -190,9 +190,10 @@ type
   { TBaseComponentPalette }
   
   TComponentPaletteHandlerType = (
-    cphtUpdateVisible,   // Visibility of component palette icons is recomputed
+    cphtVoteVisibility,  // Visibility of component palette icons is recomputed
     cphtComponentAdded,  // Typically selection is changed after component was added.
-    cphtSelectionChanged
+    cphtSelectionChanged,
+    cphtUpdated
     );
 
   TComponentSelectionMode = (
@@ -281,14 +282,17 @@ type
     procedure DoAfterComponentAdded(ALookupRoot, AComponent: TComponent;
                             ARegisteredComponent: TRegisteredComponent); virtual;
     procedure DoAfterSelectionChanged;
+    procedure DoAfterUpdate;
     procedure RemoveAllHandlersOfObject(AnObject: TObject);
-    procedure AddHandlerUpdateVisible(const OnUpdateCompVisibleEvent: TUpdateCompVisibleEvent;
-                                      AsLast: boolean = false);
-    procedure RemoveHandlerUpdateVisible(OnUpdateCompVisibleEvent: TUpdateCompVisibleEvent);
+    procedure AddHandlerVoteVisibility(const OnUpdateCompVisibleEvent: TUpdateCompVisibleEvent;
+                                       AsLast: boolean = false);
+    procedure RemoveHandlerVoteVisibility(OnUpdateCompVisibleEvent: TUpdateCompVisibleEvent);
     procedure AddHandlerComponentAdded(OnComponentAddedEvent: TComponentAddedEvent);
     procedure RemoveHandlerComponentAdded(OnComponentAddedEvent: TComponentAddedEvent);
     procedure AddHandlerSelectionChanged(OnSelectionChangedEvent: TPaletteHandlerEvent);
     procedure RemoveHandlerSelectionChanged(OnSelectionChangedEvent: TPaletteHandlerEvent);
+    procedure AddHandlerUpdated(OnUpdateEvent: TPaletteHandlerEvent);
+    procedure RemoveHandlerUpdated(OnUpdateEvent: TPaletteHandlerEvent);
   public
     property Pages: TBaseComponentPageList read fPages;
     property Comps: TRegisteredCompList read fComps;
@@ -1173,6 +1177,7 @@ procedure TBaseComponentPalette.Update(ForceUpdateAll: Boolean);
 begin
   fUserOrder.SortPagesAndCompsUserOrder;
   CreatePagesFromUserOrder;
+  DoAfterUpdate;
 end;
 
 procedure TBaseComponentPalette.IterateRegisteredClasses(Proc: TGetComponentClassEvent);
@@ -1198,9 +1203,9 @@ begin
   Vote:=1;
   if HideControls and AComponent.ComponentClass.InheritsFrom(TControl) then
     Dec(Vote);
-  i:=FHandlers[cphtUpdateVisible].Count;
-  while FHandlers[cphtUpdateVisible].NextDownIndex(i) do
-    TUpdateCompVisibleEvent(FHandlers[cphtUpdateVisible][i])(AComponent,Vote);
+  i:=FHandlers[cphtVoteVisibility].Count;
+  while FHandlers[cphtVoteVisibility].NextDownIndex(i) do
+    TUpdateCompVisibleEvent(FHandlers[cphtVoteVisibility][i])(AComponent,Vote);
   Result:=Vote>0;
   AComponent.Visible:=Result;
 end;
@@ -1224,6 +1229,15 @@ begin
     TPaletteHandlerEvent(FHandlers[cphtSelectionChanged][i])();
 end;
 
+procedure TBaseComponentPalette.DoAfterUpdate;
+var
+  i: Integer;
+begin
+  i:=FHandlers[cphtUpdated].Count;
+  while FHandlers[cphtUpdated].NextDownIndex(i) do
+    TPaletteHandlerEvent(FHandlers[cphtUpdated][i])();
+end;
+
 procedure TBaseComponentPalette.RemoveAllHandlersOfObject(AnObject: TObject);
 var
   HandlerType: TComponentPaletteHandlerType;
@@ -1235,16 +1249,16 @@ end;
 // Add / Remove handlers
 
 // UpdateVisible
-procedure TBaseComponentPalette.AddHandlerUpdateVisible(
+procedure TBaseComponentPalette.AddHandlerVoteVisibility(
   const OnUpdateCompVisibleEvent: TUpdateCompVisibleEvent; AsLast: boolean);
 begin
-  AddHandler(cphtUpdateVisible,TMethod(OnUpdateCompVisibleEvent),AsLast);
+  AddHandler(cphtVoteVisibility,TMethod(OnUpdateCompVisibleEvent),AsLast);
 end;
 
-procedure TBaseComponentPalette.RemoveHandlerUpdateVisible(
+procedure TBaseComponentPalette.RemoveHandlerVoteVisibility(
   OnUpdateCompVisibleEvent: TUpdateCompVisibleEvent);
 begin
-  RemoveHandler(cphtUpdateVisible,TMethod(OnUpdateCompVisibleEvent));
+  RemoveHandler(cphtVoteVisibility,TMethod(OnUpdateCompVisibleEvent));
 end;
 
 // ComponentAdded
@@ -1273,5 +1287,17 @@ begin
   RemoveHandler(cphtSelectionChanged,TMethod(OnSelectionChangedEvent));
 end;
 
+procedure TBaseComponentPalette.AddHandlerUpdated(
+  OnUpdateEvent: TPaletteHandlerEvent);
+begin
+  AddHandler(cphtUpdated,TMethod(OnUpdateEvent));
+end;
+
+procedure TBaseComponentPalette.RemoveHandlerUpdated(
+  OnUpdateEvent: TPaletteHandlerEvent);
+begin
+  RemoveHandler(cphtUpdated,TMethod(OnUpdateEvent));
+end;
+
 end.
 

ide/componentlist.lfm

@@ -7,11 +7,10 @@ object ComponentListForm: TComponentListForm
   ClientHeight = 467
   ClientWidth = 300
   KeyPreview = True
-  OnActivate = FormActivate
   OnClose = FormClose
   OnKeyDown = FormKeyDown
   OnShow = FormShow
-  LCLVersion = '1.9.0.0'
+  LCLVersion = '2.3.0.0'
   object PageControl: TPageControl
     Left = 0
     Height = 397

ide/componentlist.pas

@@ -74,7 +74,6 @@ type
     TreeFilterEd: TTreeFilterEdit;
     SelectionToolButton: TSpeedButton;
     procedure chbKeepOpenChange(Sender: TObject);
-    procedure FormActivate(Sender: TObject);
     procedure FormShow(Sender: TObject);
     procedure ListTreeSelectionChanged(Sender: TObject);
     procedure miCollapseAllClick(Sender: TObject);
@@ -102,9 +101,9 @@ type
     FAddCompNewLeft, FAddCompNewTop: Integer;
     FAddCompNewParent: TComponent;
     procedure ClearSelection;
-    procedure SelectionWasChanged;
     procedure ComponentWasAdded({%H-}ALookupRoot, {%H-}AComponent: TComponent;
                                 {%H-}ARegisteredComponent: TRegisteredComponent);
+    procedure SelectionWasChanged;
     procedure DoComponentInheritence(Comp: TRegisteredComponent);
     procedure UpdateComponents;
     procedure UpdateButtonState;
@@ -158,14 +157,26 @@ begin
   begin
     UpdateComponents;
     TreeFilterEd.InvalidateFilter;
-    IDEComponentPalette.AddHandlerSelectionChanged(@SelectionWasChanged);
     IDEComponentPalette.AddHandlerComponentAdded(@ComponentWasAdded);
+    IDEComponentPalette.AddHandlerSelectionChanged(@SelectionWasChanged);
+    IDEComponentPalette.AddHandlerUpdated(@UpdateComponents);
   end;
   chbKeepOpen.Checked := EnvironmentOptions.ComponentListKeepOpen;
   PageControl.PageIndex := EnvironmentOptions.ComponentListPageIndex;
   PageControlChange(Nil);
 end;
 
+destructor TComponentListForm.Destroy;
+begin
+  if Assigned(IDEComponentPalette) then begin
+    IDEComponentPalette.RemoveHandlerUpdated(@UpdateComponents);
+    IDEComponentPalette.RemoveHandlerSelectionChanged(@SelectionWasChanged);
+    IDEComponentPalette.RemoveHandlerComponentAdded(@ComponentWasAdded);
+  end;
+  ComponentListForm := nil;
+  inherited Destroy;
+end;
+
 procedure TComponentListForm.AddSelectedComponent;
 var
   AComponent: TRegisteredComponent;
@@ -214,14 +225,6 @@ begin
   EnvironmentOptions.ComponentListKeepOpen := chbKeepOpen.Checked;
 end;
 
-destructor TComponentListForm.Destroy;
-begin
-  if Assigned(IDEComponentPalette) then
-    IDEComponentPalette.RemoveHandlerComponentAdded(@ComponentWasAdded);
-  ComponentListForm := nil;
-  inherited Destroy;
-end;
-
 procedure TComponentListForm.FormShow(Sender: TObject);
 begin
   //DebugLn(['*** TComponentListForm.FormShow, Parent=', Parent, ', Parent.Parent=', ParentParent]);
@@ -238,12 +241,6 @@ begin
     PageControl.AnchorSideBottom.Side := asrBottom;
 end;
 
-procedure TComponentListForm.FormActivate(Sender: TObject);
-begin
-  if Assigned(IDEComponentPalette) and (IDEComponentPalette.ChangeStamp<>PrevChangeStamp) then
-    UpdateComponents;
-end;
-
 procedure TComponentListForm.ClearSelection;
 begin
   ListTree.Selected := Nil;
@@ -265,22 +262,6 @@ begin
     aTree.Selected.MakeVisible;
 end;
 
-procedure TComponentListForm.SelectionWasChanged;
-begin
-  SelectionToolButton.Down := (IDEComponentPalette.Selected = nil);
-
-  // ToDo: Select the component in active treeview.
-  if FIgnoreSelection then
-    Exit;
-
-  if ListTree.IsVisible then
-    SelectTreeComp(ListTree)
-  else if PalletteTree.IsVisible then
-    SelectTreeComp(PalletteTree)
-  else if InheritanceTree.IsVisible then
-    SelectTreeComp(InheritanceTree)
-end;
-
 function GetSelectedTreeComp(aTree: TTreeView): TRegisteredComponent;
 begin
   if Assigned(aTree.Selected) then
@@ -312,6 +293,20 @@ begin
   UpdateButtonState;
 end;
 
+procedure TComponentListForm.SelectionWasChanged;
+begin
+  SelectionToolButton.Down := (IDEComponentPalette.Selected = nil);
+  // ToDo: Select the component in active treeview.
+  if FIgnoreSelection then
+    Exit;
+  if ListTree.IsVisible then
+    SelectTreeComp(ListTree)
+  else if PalletteTree.IsVisible then
+    SelectTreeComp(PalletteTree)
+  else if InheritanceTree.IsVisible then
+    SelectTreeComp(InheritanceTree)
+end;
+
 procedure TComponentListForm.UpdateButtonState;
 begin
   OKButton.Enabled := Assigned(GetSelectedComponent);
@@ -410,12 +405,14 @@ begin
     for i := 0 to IDEComponentPalette.Pages.Count-1 do
     begin
       Pg := IDEComponentPalette.Pages[i];
+      if not Pg.Visible then Continue;
       Comps := IDEComponentPalette.RefUserCompsForPage(Pg.PageName);
       // Palette layout Page header
       ParentNode := PalletteTree.Items.AddChild(nil, Pg.PageName);
       // Iterate components of one page
       for j := 0 to Comps.Count-1 do begin
         Comp := Comps[j];
+        if not Comp.Visible then Continue;
         // Flat list item
         AListNode := ListTree.Items.AddChildObject(Nil, Comp.ComponentClass.ClassName, Comp);
         // Palette layout item