Card url fixed

[schulz]

There was an issue with displaying card by url. 3 issues found:

1. If a user was deleted from the system but he was assigned to board this piece of code fails:
   member.username = Users.findOne(member.userId).username;
   So I've replaced it with a check for user to exist:

const u = Users.findOne(member.userId);
    if(u){
      member.username = u.username;
    }

2. The scrolling was not working as Parent component was not loaded when scrollParentContainer function was called so this function should be called after rendering is finished (I've simply added a timeout to exit the rendering function scope and execute it in separate loop):

if (!Utils.isMiniScreen()){
      Meteor.setTimeout(() => {
        this.scrollParentContainer();
      }, 500);
    }

3. In swimlanes mode with lots of cards the top scrolling is required to scroll the screen to the card view:

scrollTop(position = 0) {
    const swimlanes = this.$('.js-swimlanes');
    swimlanes && swimlanes.animate({
      scrollTop: position,
    });
  },

And a code to calculate the scroll in scrollParentContainer:

//Scroll top
    const cardViewStartTop = $cardView.offset().top;
    const cardContainerScrollTop = $cardContainer.scrollTop();
    let topOffset = false;
    if(cardViewStartTop < 0){
      topOffset = 0;
    } else if(cardViewStartTop - cardContainerScrollTop > 100) {
      topOffset = cardViewStartTop - cardContainerScrollTop - 100;
    }
    if(topOffset !== false) {
      bodyBoardComponent.scrollTop(topOffset);
    }

---

This change is 

[xet7]

@schulz

What Wekan GitHub issue numbers this fixes?

[schulz]

I didn't create any issue and I'm not sure if one was created, I've just discovered it by myself and fixed