chrone: sperate client and server to different repos.

src/components/Pagination.js

@@ -0,0 +1,231 @@
+import React, { useReducer, useEffect } from 'react';
+import classNames from 'classnames';
+import { Button, ButtonGroup, Intent, HTMLSelect } from '@blueprintjs/core';
+import { FormattedMessage as T } from 'components';
+import intl from 'react-intl-universal';
+import PropTypes from 'prop-types';
+import { range } from 'lodash';
+import { Icon } from 'components';
+
+import 'style/components/DataTable/Pagination.scss';
+
+const TYPE = {
+  PAGE_CHANGE: 'PAGE_CHANGE',
+  PAGE_SIZE_CHANGE: 'PAGE_SIZE_CHANGE',
+  INITIALIZE: 'INITIALIZE',
+};
+
+const getState = ({ currentPage, size, total }) => {
+  const totalPages = Math.ceil(total / size);
+  const visibleItems = 5;
+  const halfVisibleItems = Math.ceil(visibleItems / 2);
+
+  // create an array of pages to ng-repeat in the pager control
+  let startPage, endPage;
+  if (totalPages <= visibleItems) {
+    // less than {visibleItems} total pages so show
+    startPage = 1;
+    endPage = totalPages;
+  } else {
+    // more than {visibleItems} total pages so calculate start and end pages
+    if (currentPage <= halfVisibleItems) {
+      startPage = 1;
+      endPage = visibleItems;
+    } else if (currentPage + (halfVisibleItems - 1) >= totalPages) {
+      startPage = totalPages - (visibleItems - 1);
+      endPage = totalPages;
+    } else {
+      startPage = currentPage - halfVisibleItems;
+      endPage = currentPage + halfVisibleItems - 1;
+    }
+  }
+  const pages = [...Array(endPage + 1 - startPage).keys()].map(
+    (i) => startPage + i,
+  );
+
+  // Too large or small currentPage
+  let correctCurrentpage = currentPage;
+  if (currentPage > totalPages) correctCurrentpage = totalPages;
+  if (currentPage <= 0) correctCurrentpage = 1;
+
+  return {
+    currentPage: correctCurrentpage,
+    size,
+    total,
+    pages,
+    totalPages,
+  };
+};
+
+const reducer = (state, action) => {
+  switch (action.type) {
+    case TYPE.PAGE_CHANGE:
+      return getState({
+        currentPage: action.page,
+        size: state.size,
+        total: state.total,
+      });
+    case TYPE.PAGE_SIZE_CHANGE:
+      return getState({
+        currentPage: state.currentPage,
+        size: action.size,
+        total: state.total,
+      });
+    case TYPE.INITIALIZE:
+      return getState({
+        currentPage: action.page,
+        size: action.size,
+        total: action.total,
+      });
+    default:
+      throw new Error();
+  }
+};
+
+function Pagination({
+  currentPage,
+  total,
+  size,
+  pageSizesOptions = [5, 12, 20, 30, 50, 75, 100, 150],
+  onPageChange,
+  onPageSizeChange,
+}) {
+  const [state, dispatch] = useReducer(
+    reducer,
+    { currentPage, total, size },
+    getState,
+  );
+
+  useEffect(() => {
+    dispatch({
+      type: TYPE.INITIALIZE,
+      total,
+      size,
+      page: currentPage,
+    });
+  }, [total, size, currentPage]);
+
+  return (
+    <div class="pagination">
+      <div class="pagination__buttons-group">
+        <ButtonGroup>
+          <Button
+            disabled={state.currentPage <= 1}
+            onClick={() => {
+              dispatch({ type: 'PAGE_CHANGE', page: state.currentPage - 1 });
+
+              const page = state.currentPage - 1;
+              const { size: pageSize } = state;
+
+              onPageChange({ page, pageSize });
+            }}
+            minimal={true}
+            className={'pagination__item pagination__item--previous'}
+            icon={<Icon icon={'arrow-back-24'} iconSize={12} />}
+          >
+            <T id="previous" />
+          </Button>
+
+          {state.pages.map((page) => (
+            <Button
+              key={page}
+              intent={state.currentPage === page ? Intent.PRIMARY : Intent.NONE}
+              disabled={state.currentPage === page}
+              onClick={() => {
+                dispatch({ type: 'PAGE_CHANGE', page });
+                const { size: pageSize } = state;
+
+                onPageChange({ page, pageSize });
+              }}
+              minimal={true}
+              className={classNames(
+                'pagination__item',
+                'pagination__item--page',
+                {
+                  'is-active': state.currentPage === page,
+                },
+              )}
+            >
+              {page}
+            </Button>
+          ))}
+          <Button
+            disabled={state.currentPage === state.totalPages}
+            onClick={() => {
+              dispatch({
+                type: 'PAGE_CHANGE',
+                page: state.currentPage + 1,
+              });
+              const page = state.currentPage + 1;
+              const { size: pageSize } = state;
+
+              onPageChange({ page, pageSize });
+            }}
+            minimal={true}
+            className={'pagination__item pagination__item--next'}
+            icon={<Icon icon={'arrow-forward-24'} iconSize={12} />}
+          >
+            <T id="next" />
+          </Button>
+        </ButtonGroup>
+      </div>
+
+      <div class="pagination__controls">
+        <div class="pagination__goto-control">
+          Go to
+          <HTMLSelect
+            minimal={true}
+            options={range(1, state.totalPages + 1)}
+            value={state.currentPage}
+            onChange={(event) => {
+              const page = parseInt(event.currentTarget.value, 10);
+              const { size: pageSize } = state;
+
+              dispatch({ type: 'PAGE_CHANGE', page });
+              onPageChange({ page, pageSize });
+            }}
+          />
+        </div>
+
+        <div class="pagination__pagesize-control">
+          <T id={'page_size'} />
+          <HTMLSelect
+            minimal={true}
+            options={pageSizesOptions}
+            value={size}
+            onChange={(event) => {
+              const pageSize = parseInt(event.currentTarget.value, 10);
+              dispatch({ type: 'PAGE_SIZE_CHANGE', size: pageSize });
+              dispatch({ type: 'PAGE_CHANGE', page: 1 });
+
+              onPageSizeChange({ pageSize, page: 1 });
+            }}
+          />
+        </div>
+      </div>
+
+      <div class="pagination__info">
+        {intl.get('showing_current_page_to_total', {
+          currentPage: state.currentPage,
+          totalPages: state.totalPages,
+          total: total,
+        })}
+      </div>
+    </div>
+  );
+}
+
+Pagination.propTypes = {
+  currentPage: PropTypes.number.isRequired,
+  size: PropTypes.number.isRequired,
+  total: PropTypes.number.isRequired,
+  onPageChange: PropTypes.func,
+  onPageSizeChange: PropTypes.func,
+};
+
+Pagination.defaultProps = {
+  currentPage: 1,
+  size: 25,
+};
+
+export default Pagination;