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const subManager = new SubsManager();
BlazeComponent.extendComponent({
onCreated() {
this.draggingActive = new ReactiveVar(false);
this.showOverlay = new ReactiveVar(false);
this.isBoardReady = new ReactiveVar(false);
// The pattern we use to manually handle data loading is described here:
// https://kadira.io/academy/meteor-routing-guide/content/subscriptions-and-data-management/using-subs-manager
// XXX The boardId should be readed from some sort the component "props",
// unfortunatly, Blaze doesn't have this notion.
this.autorun(() => {
const currentBoardId = Session.get('currentBoard');
if (!currentBoardId)
return;
const handle = subManager.subscribe('board', currentBoardId);
Tracker.nonreactive(() => {
Tracker.autorun(() => {
this.isBoardReady.set(handle.ready());
});
});
});
this._isDragging = false;
this._lastDragPositionX = 0;
// Used to set the overlay
this.mouseHasEnterCardDetails = false;
},
openNewListForm() {
this.childComponents('addListForm')[0].open();
},
// XXX Flow components allow us to avoid creating these two setter methods by
// exposing a public API to modify the component state. We need to investigate
// best practices here.
setIsDragging(bool) {
this.draggingActive.set(bool);
},
scrollLeft(position = 0) {
const lists = this.$('.js-lists');
lists && lists.animate({
scrollLeft: position,
});
},
currentCardIsInThisList() {
const currentCard = Cards.findOne(Session.get('currentCard'));
const listId = this.currentData()._id;
return currentCard && currentCard.listId === listId;
},
onlyShowCurrentCard() {
return Utils.isMiniScreen() && Session.get('currentCard');
},
events() {
return [{
// XXX The board-overlay div should probably be moved to the parent
// component.
'mouseenter .board-overlay'() {
if (this.mouseHasEnterCardDetails) {
this.showOverlay.set(false);
}
},
// Click-and-drag action
'mousedown .board-canvas'(evt) {
// Translating the board canvas using the click-and-drag action can
// conflict with the build-in browser mechanism to select text. We
// define a list of elements in which we disable the dragging because
// the user will legitimately expect to be able to select some text with
// his mouse.
const noDragInside = ['a', 'input', 'textarea', 'p', '.js-list-header'];
if ($(evt.target).closest(noDragInside.join(',')).length === 0) {
this._isDragging = true;
this._lastDragPositionX = evt.clientX;
}
},
'mouseup'() {
if (this._isDragging) {
this._isDragging = false;
}
},
'mousemove'(evt) {
if (this._isDragging) {
// Update the canvas position
this.listsDom.scrollLeft -= evt.clientX - this._lastDragPositionX;
this._lastDragPositionX = evt.clientX;
// Disable browser text selection while dragging
evt.stopPropagation();
evt.preventDefault();
// Don't close opened card or inlined form at the end of the
// click-and-drag.
EscapeActions.executeUpTo('popup-close');
EscapeActions.preventNextClick();
}
},
}];
},
}).register('board');
Template.boardBody.onRendered(function() {
const self = BlazeComponent.getComponentForElement(this.firstNode);
self.listsDom = this.find('.js-lists');
if (!Session.get('currentCard')) {
self.scrollLeft();
}
// We want to animate the card details window closing. We rely on CSS
// transition for the actual animation.
self.listsDom._uihooks = {
removeElement(node) {
const removeNode = _.once(() => {
node.parentNode.removeChild(node);
});
if ($(node).hasClass('js-card-details')) {
$(node).css({
flexBasis: 0,
padding: 0,
});
$(self.listsDom).one(CSSEvents.transitionend, removeNode);
} else {
removeNode();
}
},
};
$(self.listsDom).sortable({
tolerance: 'pointer',
helper: 'clone',
handle: '.js-list-header',
items: '.js-list:not(.js-list-composer)',
placeholder: 'list placeholder',
distance: 7,
start(evt, ui) {
ui.placeholder.height(ui.helper.height());
Popup.close();
},
stop() {
$(self.listsDom).find('.js-list:not(.js-list-composer)').each(
(i, list) => {
const data = Blaze.getData(list);
Lists.update(data._id, {
$set: {
sort: i,
},
});
}
);
},
});
function userIsMember() {
return Meteor.user() && Meteor.user().isBoardMember();
}
// Disable drag-dropping while in multi-selection mode, or if the current user
// is not a board member
self.autorun(() => {
$(self.listsDom).sortable('option', 'disabled',
MultiSelection.isActive() || !userIsMember());
});
// If there is no data in the board (ie, no lists) we autofocus the list
// creation form by clicking on the corresponding element.
const currentBoard = Boards.findOne(Session.get('currentBoard'));
if (userIsMember() && currentBoard.lists().count() === 0) {
self.openNewListForm();
}
});
BlazeComponent.extendComponent({
// Proxy
open() {
this.childComponents('inlinedForm')[0].open();
},
events() {
return [{
submit(evt) {
evt.preventDefault();
const titleInput = this.find('.list-name-input');
const title = titleInput.value.trim();
if (title) {
Lists.insert({
title,
boardId: Session.get('currentBoard'),
sort: $('.list').length,
});
titleInput.value = '';
titleInput.focus();
}
},
}];
},
}).register('addListForm');
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