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| 1 | +/* ===== Drawer ===== */ |
| 2 | + |
| 3 | +/* |
| 4 | + * dsn-drawer — Zijpaneel dat vanuit links of rechts de viewport inschuift |
| 5 | + * |
| 6 | + * Gebaseerd op het native <dialog> element. |
| 7 | + * Modaal (modal prop): openen via .showModal() — natieve focus-trap + ::backdrop. |
| 8 | + * Non-modaal: openen via .show() — achtergrond blijft interactief. |
| 9 | + * |
| 10 | + * HTML-structuur: |
| 11 | + * |
| 12 | + * <dialog class="dsn-drawer dsn-drawer--side-right" aria-labelledby="drawer-title"> |
| 13 | + * <div class="dsn-drawer__header"> |
| 14 | + * <h2 class="dsn-drawer-heading" id="drawer-title">Titel</h2> |
| 15 | + * <button type="button" class="dsn-button dsn-button--subtle dsn-button--size-small dsn-button--icon-only"> |
| 16 | + * <svg class="dsn-icon" aria-hidden="true"><!-- x --></svg> |
| 17 | + * <span class="dsn-button__label">Sluiten</span> |
| 18 | + * </button> |
| 19 | + * </div> |
| 20 | + * <div class="dsn-drawer__body"> |
| 21 | + * <!-- inhoud --> |
| 22 | + * </div> |
| 23 | + * <div class="dsn-drawer__footer"> |
| 24 | + * <div class="dsn-action-group"> |
| 25 | + * <!-- knoppen --> |
| 26 | + * </div> |
| 27 | + * </div> |
| 28 | + * </dialog> |
| 29 | + */ |
| 30 | + |
| 31 | +.dsn-drawer { |
| 32 | + /* Reset native <dialog> styling */ |
| 33 | + border: none; |
| 34 | + box-shadow: var(--dsn-drawer-box-shadow); |
| 35 | + background: var(--dsn-drawer-background); |
| 36 | + padding: 0; |
| 37 | + |
| 38 | + /* Grootte */ |
| 39 | + inline-size: min( |
| 40 | + var(--dsn-drawer-max-width), |
| 41 | + calc(100svw - var(--dsn-drawer-min-gap)) |
| 42 | + ); |
| 43 | + block-size: 100svh; |
| 44 | + max-block-size: 100svh; |
| 45 | + |
| 46 | + /* Positionering — override UA's auto-centrering voor zowel modal als non-modal */ |
| 47 | + position: fixed; |
| 48 | + inset-block: 0; |
| 49 | + margin-block: 0; |
| 50 | + |
| 51 | + /* Altijd flex-direction column, ook tijdens sluitanimatie */ |
| 52 | + flex-direction: column; |
| 53 | + |
| 54 | + /* Animatietransitie (ook voor sluitanimatie) */ |
| 55 | + opacity: 1; |
| 56 | + transform: translateX(0); |
| 57 | + transition: |
| 58 | + opacity var(--dsn-transition-duration-normal) |
| 59 | + var(--dsn-transition-easing-default), |
| 60 | + transform var(--dsn-transition-duration-normal) |
| 61 | + var(--dsn-transition-easing-default), |
| 62 | + display var(--dsn-transition-duration-normal) |
| 63 | + var(--dsn-transition-easing-default) allow-discrete, |
| 64 | + overlay var(--dsn-transition-duration-normal) |
| 65 | + var(--dsn-transition-easing-default) allow-discrete; |
| 66 | +} |
| 67 | + |
| 68 | +/* |
| 69 | + * Flexbox layout alleen bij open staat. |
| 70 | + * Gebruik [open] zodat de UA-stylesheet's display:none van kracht blijft |
| 71 | + * wanneer de drawer gesloten is — anders overschrijft display:flex de UA. |
| 72 | + */ |
| 73 | +.dsn-drawer[open] { |
| 74 | + display: flex; |
| 75 | +} |
| 76 | + |
| 77 | +/* Animatie uitschakelen bij prefers-reduced-motion */ |
| 78 | +@media (prefers-reduced-motion: reduce) { |
| 79 | + .dsn-drawer { |
| 80 | + transition: none; |
| 81 | + } |
| 82 | +} |
| 83 | + |
| 84 | +/* ===== Side: Right (standaard) ===== */ |
| 85 | + |
| 86 | +.dsn-drawer--side-right { |
| 87 | + right: 0; |
| 88 | + left: auto; |
| 89 | + |
| 90 | + /* Alleen de rand aan de kant van de pagina (links) */ |
| 91 | + border-inline-start: var(--dsn-drawer-border-width) solid |
| 92 | + var(--dsn-drawer-border-color); |
| 93 | +} |
| 94 | + |
| 95 | +/* Openingsanimatie rechts: start buiten beeld rechts */ |
| 96 | +@starting-style { |
| 97 | + .dsn-drawer--side-right[open] { |
| 98 | + opacity: 0; |
| 99 | + transform: translateX(100%); |
| 100 | + } |
| 101 | +} |
| 102 | + |
| 103 | +/* Native backdrop (alleen bij .showModal()) */ |
| 104 | +.dsn-drawer--side-right::backdrop { |
| 105 | + background: var(--dsn-backdrop-background, rgba(0, 0, 0, 0.5)); |
| 106 | + backdrop-filter: var(--dsn-backdrop-blur, blur(2px)); |
| 107 | + opacity: 1; |
| 108 | + transition: |
| 109 | + opacity var(--dsn-transition-duration-normal) |
| 110 | + var(--dsn-transition-easing-default), |
| 111 | + display var(--dsn-transition-duration-normal) |
| 112 | + var(--dsn-transition-easing-default) allow-discrete, |
| 113 | + overlay var(--dsn-transition-duration-normal) |
| 114 | + var(--dsn-transition-easing-default) allow-discrete; |
| 115 | +} |
| 116 | + |
| 117 | +@starting-style { |
| 118 | + .dsn-drawer--side-right[open]::backdrop { |
| 119 | + opacity: 0; |
| 120 | + } |
| 121 | +} |
| 122 | + |
| 123 | +@media (prefers-reduced-motion: reduce) { |
| 124 | + .dsn-drawer--side-right::backdrop { |
| 125 | + transition: none; |
| 126 | + } |
| 127 | +} |
| 128 | + |
| 129 | +/* ===== Side: Left ===== */ |
| 130 | + |
| 131 | +.dsn-drawer--side-left { |
| 132 | + left: 0; |
| 133 | + right: auto; |
| 134 | + |
| 135 | + /* Alleen de rand aan de kant van de pagina (rechts) */ |
| 136 | + border-inline-end: var(--dsn-drawer-border-width) solid |
| 137 | + var(--dsn-drawer-border-color); |
| 138 | +} |
| 139 | + |
| 140 | +/* Openingsanimatie links: start buiten beeld links */ |
| 141 | +@starting-style { |
| 142 | + .dsn-drawer--side-left[open] { |
| 143 | + opacity: 0; |
| 144 | + transform: translateX(-100%); |
| 145 | + } |
| 146 | +} |
| 147 | + |
| 148 | +/* Native backdrop (alleen bij .showModal()) */ |
| 149 | +.dsn-drawer--side-left::backdrop { |
| 150 | + background: var(--dsn-backdrop-background, rgba(0, 0, 0, 0.5)); |
| 151 | + backdrop-filter: var(--dsn-backdrop-blur, blur(2px)); |
| 152 | + opacity: 1; |
| 153 | + transition: |
| 154 | + opacity var(--dsn-transition-duration-normal) |
| 155 | + var(--dsn-transition-easing-default), |
| 156 | + display var(--dsn-transition-duration-normal) |
| 157 | + var(--dsn-transition-easing-default) allow-discrete, |
| 158 | + overlay var(--dsn-transition-duration-normal) |
| 159 | + var(--dsn-transition-easing-default) allow-discrete; |
| 160 | +} |
| 161 | + |
| 162 | +@starting-style { |
| 163 | + .dsn-drawer--side-left[open]::backdrop { |
| 164 | + opacity: 0; |
| 165 | + } |
| 166 | +} |
| 167 | + |
| 168 | +@media (prefers-reduced-motion: reduce) { |
| 169 | + .dsn-drawer--side-left::backdrop { |
| 170 | + transition: none; |
| 171 | + } |
| 172 | +} |
| 173 | + |
| 174 | +/* ===== Header ===== */ |
| 175 | + |
| 176 | +.dsn-drawer__header { |
| 177 | + display: flex; |
| 178 | + align-items: center; |
| 179 | + gap: var(--dsn-space-inline-xl); |
| 180 | + flex-shrink: 0; |
| 181 | + |
| 182 | + padding-block-start: var(--dsn-drawer-header-padding-block-start); |
| 183 | + padding-block-end: var(--dsn-drawer-header-padding-block-end); |
| 184 | + padding-inline: var(--dsn-drawer-header-padding-inline); |
| 185 | + |
| 186 | + /* Scheidingslijn onder de header */ |
| 187 | + border-block-end: var(--dsn-drawer-border-width) solid |
| 188 | + var(--dsn-drawer-border-color); |
| 189 | +} |
| 190 | + |
| 191 | +/* ===== Heading ===== */ |
| 192 | + |
| 193 | +.dsn-drawer-heading { |
| 194 | + flex: 1; |
| 195 | + margin: 0; |
| 196 | + |
| 197 | + font-family: var(--dsn-drawer-heading-font-family); |
| 198 | + font-weight: var(--dsn-drawer-heading-font-weight); |
| 199 | + font-size: var(--dsn-drawer-heading-font-size); |
| 200 | + line-height: var(--dsn-drawer-heading-line-height); |
| 201 | + color: var(--dsn-drawer-heading-color); |
| 202 | +} |
| 203 | + |
| 204 | +/* ===== Body met scroll-affordance ===== */ |
| 205 | +/* |
| 206 | + * Scroll-affordance schaduw (Lea Verou techniek — verticale variant): |
| 207 | + * - Dekkende overlagen (background-attachment: local) scrollen mee met de content |
| 208 | + * en verbergen de schaduwen wanneer je aan het begin of einde bent. |
| 209 | + * - Schaduw-overlagen (background-attachment: scroll) blijven gefixeerd. |
| 210 | + * - Resultaat: schaduw is zichtbaar zodra er content is om naartoe te scrollen. |
| 211 | + * |
| 212 | + * ⚠️ Vereist dat de achtergrondkleur overeenkomt met de drawer-achtergrond. |
| 213 | + */ |
| 214 | + |
| 215 | +.dsn-drawer__body { |
| 216 | + --_bg: var(--dsn-drawer-background); |
| 217 | + --_shadow: var(--dsn-color-shadow-scroll, rgba(0, 0, 0, 0.12)); |
| 218 | + |
| 219 | + flex: 1; |
| 220 | + overflow-y: auto; |
| 221 | + |
| 222 | + padding-block: var(--dsn-drawer-body-padding-block); |
| 223 | + padding-inline: var(--dsn-drawer-body-padding-inline); |
| 224 | + |
| 225 | + background-color: var(--_bg); |
| 226 | + background-image: |
| 227 | + /* Top-cover (local): verbergt de bovenschaduw als je helemaal boven bent */ |
| 228 | + linear-gradient(to bottom, var(--_bg) 0%, transparent 100%), |
| 229 | + /* Onder-cover (local): verbergt de onderschaduw als je helemaal onder bent */ |
| 230 | + linear-gradient(to top, var(--_bg) 0%, transparent 100%), |
| 231 | + /* Bovenschaduw (scroll): altijd aanwezig */ |
| 232 | + linear-gradient(to bottom, var(--_shadow) 0%, transparent 100%), |
| 233 | + /* Onderschaduw (scroll): altijd aanwezig */ |
| 234 | + linear-gradient(to top, var(--_shadow) 0%, transparent 100%); |
| 235 | + background-repeat: no-repeat; |
| 236 | + background-size: |
| 237 | + 100% 4rem, |
| 238 | + 100% 4rem, |
| 239 | + 100% 2rem, |
| 240 | + 100% 2rem; |
| 241 | + background-position: top, bottom, top, bottom; |
| 242 | + background-attachment: local, local, scroll, scroll; |
| 243 | +} |
| 244 | + |
| 245 | +/* ===== Footer ===== */ |
| 246 | + |
| 247 | +.dsn-drawer__footer { |
| 248 | + flex-shrink: 0; |
| 249 | + |
| 250 | + padding-block-start: var(--dsn-drawer-footer-padding-block-start); |
| 251 | + padding-block-end: var(--dsn-drawer-footer-padding-block-end); |
| 252 | + padding-inline: var(--dsn-drawer-footer-padding-inline); |
| 253 | + |
| 254 | + /* Scheidingslijn boven de footer */ |
| 255 | + border-block-start: var(--dsn-drawer-border-width) solid |
| 256 | + var(--dsn-drawer-border-color); |
| 257 | +} |
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