Enable context menu key

[NickWingate]

• Resolves: Menu key should trigger right click menu #8205
• Target version: master

Summary

Catch and pass context menu key to core (respective core patch: https://gerrit.libreoffice.org/c/core/+/171914)
Once rendered context menu, focus it so we can continue navigating it with the keyboard

TODO

• ...

Checklist

• I have run make prettier-write and formatted the code.
• All commits have Change-Id
• I have run tests with make check
• I have issued make run and manually verified that everything looks okay
• Documentation (manuals or wiki) has been updated or is not required

[pedropintosilva]

I think I have found a problem

1. Open a document
2. Press the menu key on your keyboard
3. Press down key -> it selects Paste
4. Press Enter
5. Press Escape (doesn't work but the escape works on this very dialog when the dialog is triggered from the UI or via ctrl + shift + alt + v) first Problem
6. Click cancel
7. See the Exception TypeError: operation is null emitting event contextmenu: second problem

09:18:58.911 1723792738912 INCOMING: invalidatecursor: { "viewId": "4", "rectangle": "2305, 1418, 0, 276", "mispelledWord": "0", "hyperlink": {} } global.js:529:37
09:18:58.912 Error in parsing value for 'top'.  Declaration dropped. cool.html
09:18:59.010 1723792739011 OUTGOING: key type=up char=0 key=1027
 global.js:529:37
09:19:00.042 1723792740042 OUTGOING: key type=input char=0 key=1305
 global.js:529:37
09:19:00.060 1723792740061 INCOMING: contextmenu: {
    "menu": [
        {
            "text": "~Cut",
            "type": "command",
            "command": ".uno:Cut",
            "enabled": "false"
        },
        {
            "text": "Cop~y",
            "type": "command",
           <truncated 15771chars> global.js:529:37
09:19:00.065
Exception TypeError: operation is null emitting event contextmenu: {
    "menu": [
        {
            "text": "~Cut",
            "type": "command",
            "command": ".uno:Cut",
            "enabled": "false"
        },
        {
            "text": "Cop~y",
            "type": "command",
            "command": ".uno:Copy",
            "enabled": "false"
        },
        {
            "text": "~Paste",
            "type": "command",
            "command": ".uno:Paste",
            "enabled": "true"
        },
        {
            "text": "Paste ~Special",
            "type": "menu",
            "command": ".uno:PasteSpecialMenu",
            "menu": [
                {
                    "text": "~Unformatted Text",
                    "type": "command",
                    "command": ".uno:PasteUnformatted",
                    "enabled": "true"
                },
                {
                    "text": "~More Options...",
                    "type": "command",
    …

console-export-2024-8-16_9-22-29.txt

Peek.2024-08-16.09-22.mp4

Then after closing that dialog and refreshing:

• The context menu now appears always following the position of the mouse cursor (arrow) instead of text cursor (caret) Third problem:

Peek.2024-08-16.09-23.mp4

[NickWingate]

@pedropintosilva, I am unable to reproduce the first two problems. Working on a fix for the third problem now.