Help - Developing an IDE Extension - Access Package from Menu

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gcscaglia:
I'm trying to develop an IDE Extension for Lazarus (following https://wiki.lazarus.freepascal.org/Extending_the_IDE).

While there are examples of how to get the currently open project, all examples I've found for opening packages assume the developer knows the package name.

I'm trying to develop an extension that will be accessed via a menu item on the Package Editor form. I've succeeded in creating the menu item, as follows:

--- Code: Pascal [+][-]window.onload = function(){var x1 = document.getElementById("main_content_section"); if (x1) { var x = document.getElementsByClassName("geshi");for (var i = 0; i < x.length; i++) { x[i].style.maxHeight='none'; x[i].style.height = Math.min(x[i].clientHeight+15,306)+'px'; x[i].style.resize = "vertical";}};} ---unit UGenerateGitIgnore; {$mode objfpc}{$H+} interface uses Classes, SysUtils, MenuIntf; procedure WriteGitIgnoreForPackage(Sender: TObject); procedure Register; implementation procedure WriteGitIgnoreForPackage(Sender: TObject);beginend; procedure Register;begin RegisterIDEMenuCommand( PkgEditMenuSectionMisc, 'gitignore', 'Generate .gitignore', nil, @WriteGitIgnoreForPackage );end; end.
My current problem is, how do I know, inside the WriteGitIgnoreForPackage procedure, which package did the user clicked the menu item from?

For this particular use case what I really must know is where the .lpk file resides, but ideally I would be able to get an TIDEPackage reference.

I've already tried using
--- Code: Pascal [+][-]window.onload = function(){var x1 = document.getElementById("main_content_section"); if (x1) { var x = document.getElementsByClassName("geshi");for (var i = 0; i < x.length; i++) { x[i].style.maxHeight='none'; x[i].style.height = Math.min(x[i].clientHeight+15,306)+'px'; x[i].style.resize = "vertical";}};} ---PackageEditingInterface.GetPackageOfEditorItem(Sender); (found this being done on ToDoDlg.pas, on lazarus/components/todolist) but this always returns nil.

gcscaglia:
To future readers:

Shame on me, reading lazarus/packager/pkgmanager.pas solved my problem:

--- Code: Pascal [+][-]window.onload = function(){var x1 = document.getElementById("main_content_section"); if (x1) { var x = document.getElementsByClassName("geshi");for (var i = 0; i < x.length; i++) { x[i].style.maxHeight='none'; x[i].style.height = Math.min(x[i].clientHeight+15,306)+'px'; x[i].style.resize = "vertical";}};} ---function TPkgManager.GetPackageOfEditorItem(Sender: TObject): TIDEPackage;begin Result:=nil; while (Sender is TMenuItem) and (TMenuItem(Sender).Parent<>nil) do Sender:=TMenuItem(Sender).Parent; if (Sender is TMenuItem) and (TMenuItem(Sender).Menu<>nil) then Sender:=TMenuItem(Sender).Menu; if (Sender is TComponent) and (TComponent(Sender).Owner is TCustomForm) then Sender:=TCustomForm(TComponent(Sender).Owner); if Sender is TPackageEditorForm then Result:=TPackageEditorForm(Sender).LazPackage;end;
In other words: I need to pass a TComponent into PackageEditingInterface.GetPackageOfEditorItem. On my particular case, Sender was an TIDEMenuCommand instance. Modifying WriteGitIgnoreForPackage as follows worked for me:

--- Code: Pascal [+][-]window.onload = function(){var x1 = document.getElementById("main_content_section"); if (x1) { var x = document.getElementsByClassName("geshi");for (var i = 0; i < x.length; i++) { x[i].style.maxHeight='none'; x[i].style.height = Math.min(x[i].clientHeight+15,306)+'px'; x[i].style.resize = "vertical";}};} ---procedure WriteGitIgnoreForPackage(Sender: TObject);var lCmd: TComponent; lPkg: TIDEPackage;begin if (Sender is TIDEMenuCommand) then lCmd := TIDEMenuCommand(Sender).MenuItem else if (Sender is TComponent) then lCmd := TComponent(Sender) else ShowMessage('Unsupported Sender!'); lPkg := PackageEditingInterface.GetPackageOfEditorItem(lCmd); ShowMessage('Pkg: ' + lPkg.Name);end;
I'm probably going to submit a patch for GetPackageOfEditorItem to check for TIDEMenuCommand as well.

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