[library content view] fixed the position of the operation menu for folder/file items displayed in the bottom of the page (#7565)

frontend/src/components/dropdown-menu/item-dropdown-menu.js

@@ -200,7 +200,7 @@ class ItemDropdownMenu extends React.Component {
     }
 
     return (
-      <Dropdown tag="span" direction='down' isOpen={this.state.isItemMenuShow} toggle={this.onDropdownToggleClick} className="vam">
+      <Dropdown isOpen={this.state.isItemMenuShow} toggle={this.onDropdownToggleClick} className="vam">
         <DropdownToggle
           tag={tagName || 'i'}
           role="button"
@@ -216,9 +216,6 @@ class ItemDropdownMenu extends React.Component {
         <ModalPortal>
           <DropdownMenu
             style={menuStyle}
-            className={`${this.props.menuClassname} position-fixed`}
-            flip={false}
-            modifiers={[{ name: 'preventOverflow', options: { boundary: document.body } }]}
           >
             {menuList.map((menuItem, index) => {
               if (menuItem === 'Divider') {
@@ -241,11 +238,7 @@ class ItemDropdownMenu extends React.Component {
                       <span className="mr-auto">{menuItem.value}</span>
                       <i className="sf3-font-down sf3-font rotate-270"></i>
                     </DropdownToggle>
-                    <DropdownMenu
+                    <DropdownMenu>
-                      className="position-fixed"
-                      flip={false}
-                      modifiers={[{ name: 'preventOverflow', options: { boundary: document.body } }]}
-                    >
                       {menuItem.subOpListHeader && <DropdownItem header>{menuItem.subOpListHeader}</DropdownItem>}
                       {menuItem.subOpList.map((item, index) => {
                         if (item == 'Divider') {

frontend/src/components/dropdown-menu/metadata-item-dropdown-menu.js

@@ -0,0 +1,296 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import classnames from 'classnames';
+import { Dropdown, DropdownMenu, DropdownToggle, DropdownItem } from 'reactstrap';
+import listener from '../context-menu/globalEventListener';
+import { gettext } from '../../utils/constants';
+import { Utils } from '../../utils/utils';
+import ModalPortal from '../modal-portal';
+
+import '../../css/item-dropdown-menu.css';
+
+const propTypes = {
+  tagName: PropTypes.string,
+  item: PropTypes.object.isRequired,
+  toggleClass: PropTypes.string,
+  toggleChildren: PropTypes.object,
+  isHandleContextMenuEvent: PropTypes.bool,
+  getMenuList: PropTypes.func.isRequired,
+  onMenuItemClick: PropTypes.func.isRequired,
+  freezeItem: PropTypes.func,
+  unfreezeItem: PropTypes.func,
+  menuStyle: PropTypes.object,
+  isDisplayFiles: PropTypes.bool,
+};
+
+class ItemDropdownMenu extends React.Component {
+
+  static defaultProps = {
+    isHandleContextMenuEvent: true,
+    menuStyle: {},
+    toggleClass: 'sf3-font-more sf3-font'
+  };
+
+  constructor(props) {
+    super(props);
+    this.state = {
+      menuList: [],
+      isItemMenuShow: false,
+      isSubMenuShown: false,
+      currentItem: ''
+    };
+    this.dropdownRef = React.createRef();
+    this.subMenuDirection = 'right';
+  }
+
+  componentDidMount() {
+    if (this.props.isHandleContextMenuEvent) {
+      this.listenerId = listener.register(this.onShowMenu, this.onHideMenu);
+    }
+    this.setState({
+      menuList: this.removeUselessDivider(this.props.getMenuList(this.props.item))
+    });
+    setTimeout(() => {
+      if (this.dropdownRef.current) {
+        this.subMenuDirection = (window.innerWidth - this.dropdownRef.current.getBoundingClientRect().right < 400) ? 'left' : 'right';
+      }
+    }, 1);
+  }
+
+  UNSAFE_componentWillReceiveProps(nextProps) { // for toolbar item operation
+    const nextMenuList = this.removeUselessDivider(nextProps.getMenuList(nextProps.item));
+    if (nextProps.item.name !== this.props.item.name || this.state.menuList !== nextMenuList) {
+      this.setState({ menuList: nextMenuList });
+    }
+  }
+
+  componentWillUnmount() {
+    if (this.props.isHandleContextMenuEvent && this.listenerId) {
+      listener.unregister(this.listenerId);
+    }
+  }
+
+  removeUselessDivider = (menuList) => {
+    while (menuList && menuList[0] === 'Divider') {
+      menuList.shift();
+    }
+    return menuList;
+  };
+
+  onShowMenu = () => {
+    // nothing todo
+  };
+
+  onHideMenu = () => {
+    if (this.state.isItemMenuShow) {
+      this.setState({ isItemMenuShow: false });
+      if (typeof(this.props.unfreezeItem) === 'function') {
+        this.props.unfreezeItem();
+      }
+    }
+  };
+
+  onDropdownToggleKeyDown = (e) => {
+    if (e.key == 'Enter' || e.key == 'Space') {
+      this.onDropdownToggleClick(e);
+    }
+  };
+
+  onDropdownToggleClick = (e) => {
+    e.preventDefault();
+    e.stopPropagation();
+
+    this.toggleOperationMenu();
+  };
+
+  toggleOperationMenu = () => {
+    this.setState(
+      { isItemMenuShow: !this.state.isItemMenuShow },
+      () => {
+        if (this.state.isItemMenuShow && typeof(this.props.freezeItem) === 'function') {
+          this.props.freezeItem();
+        } else if (!this.state.isItemMenuShow && typeof(this.props.unfreezeItem) === 'function') {
+          this.props.unfreezeItem();
+        }
+      }
+    );
+  };
+
+  onMenuItemKeyDown = (e) => {
+    if (e.key == 'Enter' || e.key == 'Space') {
+      this.onMenuItemClick(e);
+    }
+  };
+
+  onMenuItemClick = (event) => {
+    let operation = Utils.getEventData(event, 'toggle') ?? event.currentTarget.getAttribute('data-toggle');
+    let item = this.props.item;
+    if (typeof(this.props.unfreezeItem) === 'function') {
+      this.props.unfreezeItem();
+    }
+    this.props.onMenuItemClick(operation, event, item);
+    this.setState({ isItemMenuShow: false });
+  };
+
+  onDropDownMouseMove = () => {
+    if (this.state.isSubMenuShown) {
+      this.setState({
+        isSubMenuShown: false
+      });
+    }
+  };
+
+  toggleSubMenu = (e) => {
+    e.stopPropagation();
+    this.setState({
+      isSubMenuShown: !this.state.isSubMenuShown
+    });
+  };
+
+  toggleSubMenuShown = (item) => {
+    this.setState({
+      isSubMenuShown: true,
+      currentItem: item.key
+    });
+  };
+
+  render() {
+    let menuList = this.state.menuList;
+    let { toggleClass, toggleChildren, tagName, menuStyle } = this.props;
+    toggleClass = 'sf-dropdown-toggle ' + toggleClass;
+
+    if (!menuList.length) {
+      return '';
+    }
+
+    if (tagName && tagName === 'button') {
+      return (
+        <Dropdown isOpen={this.state.isItemMenuShow} toggle={this.onDropdownToggleClick}>
+          <DropdownToggle
+            tag="span"
+            className={this.props.toggleClass}
+            data-toggle="dropdown"
+            title={gettext('More operations')}
+            aria-label={gettext('More operations')}
+            aria-expanded={this.state.isItemMenuShow}
+            onKeyDown={this.onDropdownToggleKeyDown}
+          >
+            {toggleChildren}
+          </DropdownToggle>
+          <DropdownMenu>
+            {menuList.map((menuItem, index) => {
+              if (menuItem === 'Divider') {
+                return <DropdownItem key={index} divider />;
+              } else {
+                return (
+                  <DropdownItem
+                    key={index}
+                    data-toggle={menuItem.key}
+                    onClick={this.onMenuItemClick}
+                    onKeyDown={this.onMenuItemKeyDown}
+                  >
+                    {menuItem.value}
+                  </DropdownItem>
+                );
+              }
+            })}
+          </DropdownMenu>
+        </Dropdown>
+      );
+    }
+
+    return (
+      <Dropdown tag="span" direction='down' isOpen={this.state.isItemMenuShow} toggle={this.onDropdownToggleClick} className="vam">
+        <DropdownToggle
+          tag={tagName || 'i'}
+          role="button"
+          tabIndex="0"
+          className={toggleClass}
+          title={gettext('More operations')}
+          data-toggle="dropdown"
+          aria-expanded={this.state.isItemMenuShow}
+          aria-label={gettext('More operations')}
+          onKeyDown={this.onDropdownToggleKeyDown}
+          innerRef={this.dropdownRef}
+        />
+        <ModalPortal>
+          <DropdownMenu
+            style={menuStyle}
+            className={`${this.props.menuClassname} position-fixed`}
+            flip={false}
+            modifiers={[{ name: 'preventOverflow', options: { boundary: document.body } }]}
+          >
+            {menuList.map((menuItem, index) => {
+              if (menuItem === 'Divider') {
+                return <DropdownItem key={index} divider />;
+              } else if (menuItem.subOpList) {
+                return (
+                  <Dropdown
+                    key={index}
+                    direction={this.subMenuDirection}
+                    className="w-100"
+                    isOpen={this.state.isSubMenuShown && this.state.currentItem == menuItem.key}
+                    toggle={this.toggleSubMenu}
+                    onMouseMove={(e) => {e.stopPropagation();}}
+                  >
+                    <DropdownToggle
+                      tag='span'
+                      className="dropdown-item font-weight-normal rounded-0 d-flex align-items-center"
+                      onMouseEnter={this.toggleSubMenuShown.bind(this, menuItem)}
+                    >
+                      <span className="mr-auto">{menuItem.value}</span>
+                      <i className="sf3-font-down sf3-font rotate-270"></i>
+                    </DropdownToggle>
+                    <DropdownMenu
+                      className="position-fixed"
+                      flip={false}
+                      modifiers={[{ name: 'preventOverflow', options: { boundary: document.body } }]}
+                    >
+                      {menuItem.subOpListHeader && <DropdownItem header>{menuItem.subOpListHeader}</DropdownItem>}
+                      {menuItem.subOpList.map((item, index) => {
+                        if (item == 'Divider') {
+                          return <DropdownItem key={index} divider />;
+                        } else {
+                          return (
+                            <DropdownItem key={index} data-toggle={item.key} onClick={this.onMenuItemClick} onKeyDown={this.onMenuItemKeyDown}>
+                              {item.icon_dom || null}
+                              <span>{item.value}</span>
+                            </DropdownItem>
+                          );
+                        }
+                      })}
+                    </DropdownMenu>
+                  </Dropdown>
+                );
+              } else {
+                return (
+                  <DropdownItem
+                    key={index}
+                    className={classnames({
+                      'pl-5': this.props.isDisplayFiles != undefined,
+                      'position-relative': this.props.isDisplayFiles
+                    })}
+                    data-toggle={menuItem.key}
+                    onClick={this.onMenuItemClick}
+                    onKeyDown={this.onMenuItemKeyDown}
+                    onMouseMove={this.onDropDownMouseMove}
+                  >
+                    {menuItem.key === 'Display files' && this.props.isDisplayFiles && (
+                      <i className="dropdown-item-tick sf2-icon-tick"></i>
+                    )}
+                    {menuItem.icon_dom || null}
+                    {menuItem.value}
+                  </DropdownItem>
+                );
+              }
+            })}
+          </DropdownMenu>
+        </ModalPortal>
+      </Dropdown>
+    );
+  }
+}
+
+ItemDropdownMenu.propTypes = propTypes;
+
+export default ItemDropdownMenu;

frontend/src/metadata/metadata-tree-view/folder.js

@@ -2,7 +2,7 @@ import React, { useCallback, useMemo, useState } from 'react';
 import PropTypes from 'prop-types';
 import classnames from 'classnames';
 import ViewItem from './view';
-import ItemDropdownMenu from '../../components/dropdown-menu/item-dropdown-menu';
+import ItemDropdownMenu from '../../components/dropdown-menu/metadata-item-dropdown-menu';
 import toaster from '../../components/toast';
 import NewView from './new-view';
 import InlineNameEditor from './inline-name-editor';

frontend/src/metadata/metadata-tree-view/view.js

@@ -3,7 +3,7 @@ import PropTypes from 'prop-types';
 import classnames from 'classnames';
 import { gettext } from '../../utils/constants';
 import Icon from '../../components/icon';
-import ItemDropdownMenu from '../../components/dropdown-menu/item-dropdown-menu';
+import ItemDropdownMenu from '../../components/dropdown-menu/metadata-item-dropdown-menu';
 import toaster from '../../components/toast';
 import InlineNameEditor from './inline-name-editor';
 import { Utils, isMobile } from '../../utils/utils';