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(core) Frozen columns reordering

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Summary: Bug fix. Moving columns over the frozen set didn't work properly.

Test Plan: new tests

Reviewers: georgegevoian

Reviewed By: georgegevoian

Differential Revision: https://phab.getgrist.com/D3297
This commit is contained in:
Jarosław Sadziński 2022-02-28 21:38:05 +01:00
parent fa68b790bb
commit ae6c857ac5
1 changed files with 50 additions and 9 deletions
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59
app/client/components/GridView.js
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@ -782,7 +782,8 @@ GridView.prototype.currentMouseRow = function(yCoord) {
/**
* Returns the column index of the column whose left position is closest to and
* no greater than given x-position.
* param{xCoord}: The mouse x-position (including any scroll left amount).
* param{xCoord}: The mouse x-position (absolute position on a page).
* Grid scroll offset and frozen columns are taken into account.
* Assumes that this.colRightOffsets is up to date
* In the following examples, let * denote the current mouse position.
* * |0____|1____|2____|3____| Returns 0
@ -791,11 +792,40 @@ GridView.prototype.currentMouseRow = function(yCoord) {
* |0____|1____|2__*_|3____| Returns 2
* |0____|1____|2____|3__*_| Returns 3
* |0____|1____|2____|3____| * Returns 4
*
* For frozen columns and a scrolled view:
* * |0____|1____|..5|6____| Returns 0
* |0__*_|1____|..5|6____| Returns 0
* |0____|1__*_|..5|6____| Returns 1
* |0____|1____|*.5|6____| Returns 5
* |0____|1____|..5|6__*_| Returns 6
* |0____|1____|..5|6____| * Returns 6
**/
GridView.prototype.getMousePosCol = function (xCoord) {
//offset to left edge of gridView viewports
var headerOffset = this._cornerDom.getBoundingClientRect().right;
return this.colRightOffsets.peek().getIndex(xCoord - headerOffset);
GridView.prototype.getMousePosCol = function (mouseX) {
const scrollLeft = this.scrollLeft();
// Offset to left edge of gridView viewports
const headerOffset = this._cornerDom.getBoundingClientRect().right;
// Convert mouse x to grid x (not including scroll yet).
// GridX now has x position as if the grid pane is covering
// the whole screen, it still can be scrolled, so 0px is not equal to A column yet.
const gridX = mouseX - headerOffset;
// Total width of frozen columns (if zero, no frozen column set)
const frozenWidth = this.frozenWidth.peek();
// Frozen columns can be scrolled also, but not more then frozenOffset.
const frozenScroll = Math.min(this.frozenOffset.peek(), scrollLeft);
// If gridX is in frozen section or outside. Frozen section can be scrolled also
// on narrow screens so take this into account.
const inFrozen = this.numFrozen.peek() && gridX <= (frozenWidth - frozenScroll);
// If grid x (mouse converted to grid pane coordinates) is in frozen area
// we need to use frozenScroll value (how much frozen area is scrolled),
// but if it is outside we want to take the scroll offset into account.
// Here we wil calculate where exactly is mouse (over which column),
// to do that, we will pretend that nothing is scrolled - so we need
// to move gridX a little to the right, either by grid offset (how much whole grid
// is scrolled to the left) or a frozen set offset (how much frozen columns
// are scrolled to the left).
const scrollX = gridX + (inFrozen ? frozenScroll : scrollLeft);
return this.colRightOffsets.peek().getIndex(scrollX);
};
// Used for styling the paste data the same way the col/row is styled in the GridView.
@ -1268,7 +1298,7 @@ GridView.prototype.rowMouseMove = function(elem, event) {
};
GridView.prototype.colMouseMove = function(elem, event) {
var currentCol = Math.min(this.getMousePosCol(this.scrollLeft() + event.pageX),
var currentCol = Math.min(this.getMousePosCol(event.pageX),
this.viewSection.viewFields().peekLength - 1);
this.cellSelector.col.end(currentCol);
};
@ -1411,7 +1441,7 @@ GridView.prototype.dragRows = function(elem, event) {
};
GridView.prototype.dragCols = function(elem, event) {
var dropIndex = Math.min(this.getMousePosCol(event.pageX + this.scrollLeft()),
let dropIndex = Math.min(this.getMousePosCol(event.pageX),
this.viewSection.viewFields().peekLength - 1);
if (this.cellSelector.containsCol(dropIndex)) {
dropIndex = this.cellSelector.colLower();
@ -1422,8 +1452,19 @@ GridView.prototype.dragCols = function(elem, event) {
dropIndex = Math.min(dropIndex, this.cellSelector.colLower());
}
var viewDataNumsWidth = $('.gridview_corner_spacer').width();
var linePos = viewDataNumsWidth + this.colRightOffsets.peek().getSumTo(dropIndex) - this.scrollLeft();
const viewDataNumsWidth = $('.gridview_corner_spacer').width();
let linePos = viewDataNumsWidth + this.colRightOffsets.peek().getSumTo(dropIndex);
// If there are frozen columns and dropIndex (column index) is inside the frozen set.
const frozenCount = this.numFrozen();
const inFrozen = frozenCount > 0 && dropIndex < frozenCount;
const scrollLeft = this.scrollLeft();
// Move line left by the number of pixels the frozen set is scrolled.
if (inFrozen) {
linePos -= Math.min(this.frozenOffset.peek(), scrollLeft);
} else {
// Else move left by the whole amount.
linePos -= scrollLeft;
}
this.cellSelector.col.linePos(linePos + 'px');
this.cellSelector.col.dropIndex(dropIndex);
this.dragX(event.pageX);