7820380e
 “wangming”
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function Grid(_ref) {
let {
swiper,
extendParams,
on
} = _ref;
extendParams({
grid: {
rows: 1,
fill: 'column'
}
});
let slidesNumberEvenToRows;
let slidesPerRow;
let numFullColumns;
let wasMultiRow;
const getSpaceBetween = () => {
let spaceBetween = swiper.params.spaceBetween;
if (typeof spaceBetween === 'string' && spaceBetween.indexOf('%') >= 0) {
spaceBetween = parseFloat(spaceBetween.replace('%', '')) / 100 * swiper.size;
} else if (typeof spaceBetween === 'string') {
spaceBetween = parseFloat(spaceBetween);
}
return spaceBetween;
};
const initSlides = slides => {
const {
slidesPerView
} = swiper.params;
const {
rows,
fill
} = swiper.params.grid;
const slidesLength = swiper.virtual && swiper.params.virtual.enabled ? swiper.virtual.slides.length : slides.length;
numFullColumns = Math.floor(slidesLength / rows);
if (Math.floor(slidesLength / rows) === slidesLength / rows) {
slidesNumberEvenToRows = slidesLength;
} else {
slidesNumberEvenToRows = Math.ceil(slidesLength / rows) * rows;
}
if (slidesPerView !== 'auto' && fill === 'row') {
slidesNumberEvenToRows = Math.max(slidesNumberEvenToRows, slidesPerView * rows);
}
slidesPerRow = slidesNumberEvenToRows / rows;
};
const unsetSlides = () => {
if (swiper.slides) {
swiper.slides.forEach(slide => {
if (slide.swiperSlideGridSet) {
slide.style.height = '';
slide.style[swiper.getDirectionLabel('margin-top')] = '';
}
});
}
};
const updateSlide = (i, slide, slides) => {
const {
slidesPerGroup
} = swiper.params;
const spaceBetween = getSpaceBetween();
const {
rows,
fill
} = swiper.params.grid;
const slidesLength = swiper.virtual && swiper.params.virtual.enabled ? swiper.virtual.slides.length : slides.length;
// Set slides order
let newSlideOrderIndex;
let column;
let row;
if (fill === 'row' && slidesPerGroup > 1) {
const groupIndex = Math.floor(i / (slidesPerGroup * rows));
const slideIndexInGroup = i - rows * slidesPerGroup * groupIndex;
const columnsInGroup = groupIndex === 0 ? slidesPerGroup : Math.min(Math.ceil((slidesLength - groupIndex * rows * slidesPerGroup) / rows), slidesPerGroup);
row = Math.floor(slideIndexInGroup / columnsInGroup);
column = slideIndexInGroup - row * columnsInGroup + groupIndex * slidesPerGroup;
newSlideOrderIndex = column + row * slidesNumberEvenToRows / rows;
slide.style.order = newSlideOrderIndex;
} else if (fill === 'column') {
column = Math.floor(i / rows);
row = i - column * rows;
if (column > numFullColumns || column === numFullColumns && row === rows - 1) {
row += 1;
if (row >= rows) {
row = 0;
column += 1;
}
}
} else {
row = Math.floor(i / slidesPerRow);
column = i - row * slidesPerRow;
}
slide.row = row;
slide.column = column;
slide.style.height = `calc((100% - ${(rows - 1) * spaceBetween}px) / ${rows})`;
slide.style[swiper.getDirectionLabel('margin-top')] = row !== 0 ? spaceBetween && `${spaceBetween}px` : '';
slide.swiperSlideGridSet = true;
};
const updateWrapperSize = (slideSize, snapGrid) => {
const {
centeredSlides,
roundLengths
} = swiper.params;
const spaceBetween = getSpaceBetween();
const {
rows
} = swiper.params.grid;
swiper.virtualSize = (slideSize + spaceBetween) * slidesNumberEvenToRows;
swiper.virtualSize = Math.ceil(swiper.virtualSize / rows) - spaceBetween;
if (!swiper.params.cssMode) {
swiper.wrapperEl.style[swiper.getDirectionLabel('width')] = `${swiper.virtualSize + spaceBetween}px`;
}
if (centeredSlides) {
const newSlidesGrid = [];
for (let i = 0; i < snapGrid.length; i += 1) {
let slidesGridItem = snapGrid[i];
if (roundLengths) slidesGridItem = Math.floor(slidesGridItem);
if (snapGrid[i] < swiper.virtualSize + snapGrid[0]) newSlidesGrid.push(slidesGridItem);
}
snapGrid.splice(0, snapGrid.length);
snapGrid.push(...newSlidesGrid);
}
};
const onInit = () => {
wasMultiRow = swiper.params.grid && swiper.params.grid.rows > 1;
};
const onUpdate = () => {
const {
params,
el
} = swiper;
const isMultiRow = params.grid && params.grid.rows > 1;
if (wasMultiRow && !isMultiRow) {
el.classList.remove(`${params.containerModifierClass}grid`, `${params.containerModifierClass}grid-column`);
numFullColumns = 1;
swiper.emitContainerClasses();
} else if (!wasMultiRow && isMultiRow) {
el.classList.add(`${params.containerModifierClass}grid`);
if (params.grid.fill === 'column') {
el.classList.add(`${params.containerModifierClass}grid-column`);
}
swiper.emitContainerClasses();
}
wasMultiRow = isMultiRow;
};
on('init', onInit);
on('update', onUpdate);
swiper.grid = {
initSlides,
unsetSlides,
updateSlide,
updateWrapperSize
};
}
export { Grid as default };
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