callumalpass_tasknotes/styles/kanban-view.css
ac8318740 99494510f1 fix(drag-reorder): replace line indicator with gap/slot UX and fix drag bugs
- Fix column expand/contract glitch: replace `transition: all` with specific
  properties and remove scale(1.02) transform on dragover columns
- Fix wrong drop position when dragging upward: collapse dragged card's
  layout space after browser captures drag image, removing the phantom
  element that distorted sibling getBoundingClientRect values
- Replace thin 3px accent line with animated gap/slot pattern where sibling
  cards shift apart via translateY to show the drop position
- Lock source column min-height during drag so collapsing the dragged card
  doesn't shrink the priority bucket
- Clip overflow on cards container during drag so translateY shifts don't
  cause scrollbars
- Suppress hover background-color, transform, and box-shadow on all task
  cards during active drag via body-level .tn-drag-active class
- Add rAF throttling to dragover handlers (preventDefault stays synchronous)
- Support cross-column drag: detect container change, clean old, set up new
- Respect prefers-reduced-motion: reduce for shift animations

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-29 07:32:29 +11:00

503 lines
14 KiB
CSS

/* ================================================
KANBAN VIEW - BEM STRUCTURE
================================================ */
/* Kanban View Container - Root Block */
.tasknotes-plugin .kanban-view {
padding: var(--tn-spacing-sm);
display: flex;
flex-direction: column;
height: 100%;
overflow: hidden;
gap: var(--tn-spacing-sm);
max-width: 100%;
}
/* Bases Kanban root uses tn-tasknotesKanban (no kanban-view wrapper) */
.tasknotes-plugin.tn-tasknotesKanban {
display: flex;
flex-direction: column;
height: 100%;
min-height: 0;
}
/* Kanban Header */
.tasknotes-plugin .kanban-view__header {
display: flex;
flex-direction: column;
gap: var(--tn-spacing-md);
padding-bottom: var(--tn-spacing-md);
border-bottom: 1px solid var(--tn-border-color);
flex-shrink: 0;
}
.tasknotes-plugin .kanban-view__filter-container {
margin-bottom: var(--tn-spacing-sm);
}
.tasknotes-plugin .kanban-view__actions {
display: flex;
align-items: center;
justify-content: space-between;
gap: var(--tn-spacing-md);
flex-wrap: wrap;
}
.tasknotes-plugin .kanban-view__actions-left {
display: flex;
align-items: center;
gap: var(--tn-spacing-sm);
}
.tasknotes-plugin .kanban-view__actions-right {
display: flex;
align-items: center;
gap: var(--tn-spacing-sm);
}
/* Use consistent button system with primary accent background preserved */
.tasknotes-plugin .kanban-view__new-task-button {
background: var(--tn-interactive-accent);
color: var(--text-on-accent);
border: none;
box-shadow: none;
white-space: nowrap;
}
.tasknotes-plugin .kanban-view__new-task-button:hover {
background: var(--tn-interactive-accent-hover);
box-shadow: none;
}
.tasknotes-plugin .kanban-view__new-task-button:active {
opacity: 0.8;
}
/* Stats Container */
.tasknotes-plugin .kanban-view__stats {
display: flex;
align-items: center;
gap: var(--tn-spacing-sm);
padding: var(--tn-spacing-sm) var(--tn-spacing-md);
background: var(--tn-bg-secondary);
border: 1px solid var(--tn-border-color);
border-radius: var(--tn-radius-sm);
font-size: var(--tn-font-size-md);
color: var(--tn-text-muted);
font-weight: 400;
}
.tasknotes-plugin .kanban-view__stats-simple {
font-size: var(--tn-font-size-sm);
color: var(--tn-text-muted);
font-weight: 400;
}
/* Board Container */
.tasknotes-plugin .kanban-view__board-container {
flex: 1;
overflow: hidden;
background: var(--tn-bg-secondary);
border-radius: var(--tn-radius-md);
min-height: 0;
}
/* Board */
.tasknotes-plugin .kanban-view__board {
display: flex;
height: 100%;
overflow-x: auto;
overflow-y: auto;
padding: var(--tn-spacing-md);
gap: var(--tn-spacing-md);
min-height: 0;
flex-wrap: nowrap;
}
.tasknotes-plugin.tn-tasknotesKanban .kanban-view__board {
flex: 1;
min-height: 0;
}
/* Board Scrollbar */
.tasknotes-plugin .kanban-view__board::-webkit-scrollbar {
height: 8px;
}
.tasknotes-plugin .kanban-view__board::-webkit-scrollbar-track {
background: var(--tn-bg-secondary);
}
.tasknotes-plugin .kanban-view__board::-webkit-scrollbar-thumb {
background: var(--tn-border-color);
border-radius: 4px;
}
.tasknotes-plugin .kanban-view__board::-webkit-scrollbar-thumb:hover {
background: var(--tn-text-muted);
}
/* Loading Indicator */
.tasknotes-plugin .kanban-view__loading {
display: flex;
align-items: center;
justify-content: center;
gap: var(--tn-spacing-sm);
padding: var(--tn-spacing-lg);
color: var(--tn-text-muted);
font-size: var(--tn-font-size-md);
font-style: italic;
font-weight: 400;
background: var(--tn-bg-secondary);
border: 1px solid var(--tn-border-color);
border-radius: var(--tn-radius-md);
margin: var(--tn-spacing-md);
}
.tasknotes-plugin .kanban-view__loading::before {
content: '';
width: 16px;
height: 16px;
border: 2px solid color-mix(in srgb, var(--tn-text-muted) 0.3, transparent);
border-top: 2px solid var(--tn-text-muted);
border-radius: 50%;
animation: spin 1s linear infinite;
flex-shrink: 0;
}
/* Error State */
.tasknotes-plugin .kanban-view__error {
display: flex;
align-items: center;
justify-content: center;
padding: var(--tn-spacing-lg);
color: var(--tn-color-error);
background: color-mix(in srgb, var(--tn-color-error) 0.05, var(--tn-bg-secondary));
border: 1px solid color-mix(in srgb, var(--tn-color-error) 0.3, transparent);
border-radius: var(--tn-radius-md);
font-size: var(--tn-font-size-md);
font-weight: var(--tn-font-weight-medium);
margin: var(--tn-spacing-md);
}
/* ================================================
KANBAN COLUMNS
================================================ */
/* Column */
.tasknotes-plugin .kanban-view__column {
min-width: 200px;
max-width: 500px;
flex-shrink: 0;
background: var(--tn-bg-primary);
border: 1px solid var(--tn-border-color);
border-radius: var(--tn-radius-md);
display: flex;
flex-direction: column;
height: fit-content;
max-height: calc(100vh - 200px);
transition: border-color var(--tn-transition-fast), box-shadow var(--tn-transition-fast);
}
.tasknotes-plugin .kanban-view__column--dragover {
border-color: var(--tn-interactive-accent);
box-shadow: var(--tn-shadow-medium);
}
/* Column header dragover state (for column reordering) */
.tasknotes-plugin .kanban-view__column-header--dragover,
.tasknotes-plugin .kanban-view__column-header-cell--dragover {
background: var(--tn-interactive-hover);
border: 2px solid var(--tn-interactive-accent);
transform: scale(1.02);
box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}
.tasknotes-plugin .kanban-view__column--uncategorized {
opacity: 0.8;
border: 1px dashed var(--tn-text-muted);
}
.tasknotes-plugin .kanban-view__column--uncategorized .kanban-view__column-header {
background: var(--tn-border-color);
}
.tasknotes-plugin .kanban-view__column--column-drop-target {
background: var(--tn-interactive-hover);
border: 2px dashed var(--tn-interactive-accent);
transform: scale(1.02);
transition: all var(--tn-transition-medium);
box-shadow: var(--tn-shadow-medium);
position: relative;
}
.tasknotes-plugin .kanban-view__column--column-drop-target .kanban-view__column-header {
background: transparent;
border: none;
}
.tasknotes-plugin .kanban-view__column--column-drop-target::before {
content: "Drop here to reorder column";
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
background: var(--tn-interactive-accent);
color: var(--tn-text-on-accent);
padding: var(--tn-spacing-xs) var(--tn-spacing-md);
border-radius: var(--tn-radius-sm);
font-size: var(--tn-font-size-sm);
font-weight: var(--tn-font-weight-medium);
z-index: 1000;
pointer-events: none;
white-space: nowrap;
}
/* Column Header */
.tasknotes-plugin .kanban-view__column-header {
display: flex;
align-items: center;
gap: var(--tn-spacing-xs);
padding: var(--tn-spacing-sm) var(--tn-spacing-md);
border-bottom: 1px solid var(--tn-border-color);
background: var(--tn-bg-secondary);
position: sticky;
top: 0;
z-index: 5;
border-radius: var(--tn-radius-md) var(--tn-radius-md) 0 0;
cursor: grab;
user-select: none;
transition: all var(--tn-transition-fast);
}
.tasknotes-plugin .kanban-view__column-header:active {
cursor: grabbing;
}
.tasknotes-plugin .kanban-view__column-header--dragging {
opacity: 0.5;
transform: rotate(2deg);
box-shadow: var(--tn-shadow-medium);
}
@media (pointer: coarse) {
.tasknotes-plugin .kanban-view__column-header--dragging {
pointer-events: none;
}
}
/* Drag Handle */
.tasknotes-plugin .kanban-view__drag-handle {
color: var(--tn-text-muted);
cursor: grab;
font-size: var(--tn-font-size-sm);
opacity: 0.5;
transition: opacity var(--tn-transition-fast);
flex-shrink: 0;
}
.tasknotes-plugin .kanban-view__column-header:hover .kanban-view__drag-handle,
.tasknotes-plugin .kanban-view__column-header-cell:hover .kanban-view__drag-handle {
opacity: 1;
}
.tasknotes-plugin .kanban-view__drag-handle:active {
cursor: grabbing;
}
.tasknotes-plugin .kanban-view__column-title {
font-weight: var(--tn-font-weight-semibold);
font-size: var(--tn-font-size-lg);
color: var(--tn-text-normal);
line-height: 1.2;
margin: 0;
min-width: 0;
}
.tasknotes-plugin .kanban-view__column-header .kanban-view__column-title {
flex: 1;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}
.tasknotes-plugin .kanban-view__column-icon {
display: inline-flex;
align-items: center;
justify-content: center;
vertical-align: middle;
}
.tasknotes-plugin .kanban-view__column-icon svg {
width: 12px;
height: 12px;
}
.tasknotes-plugin .kanban-view__column-count {
color: var(--tn-text-muted);
font-size: var(--tn-font-size-xs);
line-height: 1.2;
font-weight: 400;
margin: 0;
margin-left: var(--tn-spacing-xs);
white-space: nowrap;
flex-shrink: 0;
}
/* ================================================
KANBAN TASK CARDS
================================================ */
/* Cards container (used for non-virtualized columns) */
.tasknotes-plugin .kanban-view__cards {
display: flex;
flex-direction: column;
gap: var(--tn-spacing-xs);
overflow-y: auto; /* Allow vertical scrolling */
flex: 1; /* Fill available space in column */
min-height: 0; /* Allow container to shrink and enable scrolling */
}
/* Virtualized columns need bounded height and relative positioning. */
.tasknotes-plugin .kanban-view__cards--virtual {
max-height: 100vh;
position: relative;
}
/* Virtualized swimlane cells should fill their container. */
.tasknotes-plugin .kanban-view__tasks-container--virtual {
height: 100%;
position: relative;
}
/* Dragging state for card wrappers */
.tasknotes-plugin .kanban-view__card-wrapper[draggable="true"]:hover {
cursor: grab;
}
.tasknotes-plugin .kanban-view__card-wrapper[draggable="true"]:active {
cursor: grabbing;
}
/* ================================================
RESPONSIVE DESIGN
================================================ */
@media (max-width: 768px) {
.tasknotes-plugin .kanban-view {
padding: var(--tn-spacing-xs);
gap: var(--tn-spacing-xs);
}
.tasknotes-plugin .kanban-view__header {
padding-bottom: var(--tn-spacing-sm);
gap: var(--tn-spacing-sm);
}
.tasknotes-plugin .kanban-view__actions {
flex-direction: column;
align-items: stretch;
gap: var(--tn-spacing-sm);
}
.tasknotes-plugin .kanban-view__actions-left,
.tasknotes-plugin .kanban-view__actions-right {
justify-content: center;
width: 100%;
}
.tasknotes-plugin .kanban-view__new-task-button {
width: 100%;
max-width: 300px;
}
.tasknotes-plugin .kanban-view__board {
padding: var(--tn-spacing-sm);
gap: var(--tn-spacing-sm);
}
}
@media (max-width: 480px) {
.tasknotes-plugin .kanban-view {
padding: var(--tn-spacing-xs);
}
.tasknotes-plugin .kanban-view__board {
padding: var(--tn-spacing-xs);
gap: var(--tn-spacing-xs);
}
.tasknotes-plugin .kanban-view__column-header {
padding: var(--tn-spacing-xs) var(--tn-spacing-sm);
}
.tasknotes-plugin .kanban-view__new-task-button {
font-size: var(--tn-font-size-xs);
padding: 0 var(--tn-spacing-md);
}
}
/* Touch drag support */
.tasknotes-plugin .kanban-view__card-wrapper[draggable="true"],
.tasknotes-plugin .kanban-view__column-header[draggable="true"],
.tasknotes-plugin .kanban-view__column-header-cell[draggable="true"] {
touch-action: manipulation;
-webkit-touch-callout: none;
-webkit-user-select: none;
user-select: none;
}
.tasknotes-plugin .kanban-view__touch-ghost {
border-radius: var(--tn-radius-md);
background: var(--tn-bg-primary);
border: 2px solid var(--tn-interactive-accent);
}
.tasknotes-plugin .kanban-view__card--dragging {
opacity: 0.4;
transform: scale(0.95);
}
/* Drop position indicators for within-column reordering */
.tasknotes-plugin .kanban-view__card-wrapper {
position: relative;
}
/* Gap/slot drag-to-reorder: sibling cards shift apart to show drop position */
.tasknotes-plugin .kanban-view__card-wrapper--drag-shift {
transition: transform 200ms cubic-bezier(0.2, 0, 0, 1);
will-change: transform;
}
.tasknotes-plugin .kanban-view__card-wrapper--shift-down {
transform: translateY(var(--tn-drag-gap, 60px));
}
@media (prefers-reduced-motion: reduce) {
.tasknotes-plugin .kanban-view__card-wrapper--drag-shift {
transition: none;
}
}
@media (pointer: coarse) {
.tasknotes-plugin .kanban-view__card--dragging {
pointer-events: none;
}
}
@media (pointer: coarse) {
.tasknotes-plugin .kanban-view__column--dragover,
.tasknotes-plugin .kanban-view__swimlane-column--dragover {
border-color: var(--tn-interactive-accent);
border-width: 2px;
transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.tasknotes-plugin .kanban-view__column-header--dragover,
.tasknotes-plugin .kanban-view__column-header-cell--dragover {
border-color: var(--tn-interactive-accent);
background: var(--tn-bg-secondary);
transition: border-color 0.15s ease;
}
}