Right click on HyperLinkGadget?

[Shardik]

The following cross-platform example detects a right click onto a HyperLinkGadget and displays a popup menu. It was successfully tested with PB 5.44 x86 in ASCII and Unicode mode on these operating systems:
- MacOS 10.6.8 'Snow Leopard'
- MacOS 10.12.3 'Sierra' (also tested with PB 5.44 x64 in ASCII and Unicode mode)
- Linux Mint 18 'Sarah' x86 Cinnamon with GTK2 and GTK3
- Lubuntu 14.04 x86 LXDE with GTK2 and GTK3
- PCLinuxOS 2014.05 MiniMe x86 KDE with GTK2 and GTK3
- Windows XP SP3
- Windows 7 SP1 x64 (also tested with PB 5.44 x64 in ASCII and Unicode mode)
- Windows 8.1 x64 (also tested with PB 5.44 x64 in ASCII and Unicode mode)

Unfortunately on Linux GTK2 and GTK3 seem to behave differently: using GTK3 you currently have to keep the right mouse button depressed and select the popup menu entry. Otherwise the popup menu will be closed when releasing the right mouse button...

Code: Select all

EnableExplicit

#Event_RightClick = #PB_Event_FirstCustomValue

CompilerSelect #PB_Compiler_OS
  CompilerCase #PB_OS_Linux
    ProcedureC HyperLinkCallback(*Widget.GtkWidget,
      *EventButton.GdkEventButton, UserData.I)

      If *EventButton\button = 3
        PostEvent(#Event_RightClick)
      EndIf
    EndProcedure
  CompilerCase #PB_OS_MacOS
    Define SubclassedHyperLink.I

    ProcedureC HyperLinkCallback()
      PostEvent(#Event_RightClick)
    EndProcedure
  CompilerCase #PB_OS_Windows
    Define DefaultHyperLinkCallback.I

    Procedure HyperLinkCallback(WindowHandle.I, Msg.I, WParam.I, LParam.I)
      Shared DefaultHyperLinkCallback.I

      If Msg = #WM_RBUTTONUP
        PostEvent(#Event_RightClick)
      EndIf

      ProcedureReturn CallWindowProc_(DefaultHyperLinkCallback.I,
        WindowHandle.I, Msg.I, WParam.I, LParam.I)
    EndProcedure
CompilerEndSelect

OpenWindow(0, 270, 100, 220, 65, "HyperLinkGadget")
HyperLinkGadget(0, 70, 20, 74, 30, "HyperLink", $FF, #PB_HyperLink_Underline)
SetGadgetColor(0, #PB_Gadget_FrontColor, $FF0000)

CompilerSelect #PB_Compiler_OS
  CompilerCase #PB_OS_Linux
    g_signal_connect_(gtk_widget_get_parent_(GadgetID(0)),
      "button-press-event", @HyperLinkCallback(), 0)
  CompilerCase #PB_OS_MacOS
    SubclassedHyperLink = objc_allocateClassPair_(CocoaMessage(0,
      GadgetID(0), "class"), "SubclassedHyperLink", 0)
    object_setClass_(GadgetID(0), SubclassedHyperLink)
    objc_registerClassPair_(SubclassedHyperLink)
    class_addMethod_(SubclassedHyperLink,
      sel_registerName_("rightMouseDown:"), @HyperLinkCallback(), "v@:@@")
  CompilerCase #PB_OS_Windows
    DefaultHyperLinkCallback.I = SetWindowLongPtr_(GadgetID(0), #GWL_WNDPROC,
      @HyperLinkCallback())
CompilerEndSelect

If CreatePopupMenu(0)
  MenuItem(0, "Right click menu")
EndIf

Repeat
  Select WaitWindowEvent()
    Case #PB_Event_CloseWindow
      Break
    Case #Event_RightClick
      DisplayPopupMenu(0, WindowID(0))
  EndSelect
ForEver

[Lebostein]

Thanks!

I hope Fred will make the gadget more flexible one day....

[IdeasVacuum]

You could simply fake it with a CanvasGadget

[Jac de Lad]

How can I use this in windows with multiple hyperlinks?

[RASHAD]

Hi
For Windows

Code: Select all

Hand = LoadCursor_(0, #IDC_HAND)

If OpenWindow(0, 0, 0, 270, 160, "HyperlinkGadget", #PB_Window_SystemMenu | #PB_Window_ScreenCentered)
  HyperLinkGadget(0, 10, 10, 0,20,"Red HyperLink", RGB(255,0,0))
  gw = GadgetWidth(0,#PB_Gadget_RequiredSize)
  ResizeGadget(0,#PB_Ignore,#PB_Ignore,gw,20)
  HyperLinkGadget(1, 10, 40, 0,20,"Arial Underlined Green HyperLink", RGB(0,255,0), #PB_HyperLink_Underline)
  SetGadgetFont(1, LoadFont(0, "Arial", 12))
  gw = GadgetWidth(1,#PB_Gadget_RequiredSize)
  ResizeGadget(1,#PB_Ignore,#PB_Ignore,gw,20)
  If CreatePopupMenu(0)
    MenuItem(1, "Open")
    MenuItem(2, "Save")
    MenuItem(3, "Save as")
    MenuItem(4, "Quit")
    MenuBar()
    OpenSubMenu("Recent files")
    MenuItem(5, "PureBasic.exe")
    MenuItem(6, "Test.txt")
    CloseSubMenu()
  EndIf
  
  Repeat
    Select WaitWindowEvent()
      Case #PB_Event_CloseWindow
        Quit = 1
        
      Case #PB_Event_Menu
        Select EventMenu()
          Case 1            
            text$ = GetGadgetText(gad)
            Debug text$
            
          Case 4
            Quit = 1
        EndSelect
        
      Case #WM_RBUTTONDOWN
        If GetCursor_() = Hand
          GetCursorPos_ (@p.POINT)
          wwin= WindowFromPoint_(p\y << 32 + p\x)
          gad = GetDlgCtrlID_(wwin)
          DisplayPopupMenu(0, WindowID(0))
        EndIf
    EndSelect
  Until Quit = 1
EndIf

Edit : Bug fixed

[Jac de Lad]

Oh, thanks rashad. That's one very easy way.
...but how do I get to know which gadget was clicked? Eventgadget() doesn't help.

[RASHAD]

Previous post updated

[Jac de Lad]

Ah, thanks again.

[RASHAD]

You are welcome

[Jac de Lad]

Just to mention, when reading the handle of the hyperlinkgadget which got the click, we don't need the hand anymore.