Code coverage report for src/js/base/module/HintPopover.js

# all files / src/js/base/module/ HintPopover.js

26.36% Statements 34/129
7.55% Branches 4/53
12.5% Functions 3/24
26.36% Lines 34/129

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     import $ from 'jquery';
    import func from '../core/func';
    import lists from '../core/lists';
    import dom from '../core/dom';
    import range from '../core/range';
    import key from '../core/key';

    const POPOVER_DIST = 5;

    export default class HintPopover {
      constructor(context) {
        this.context = context;

        this.ui = $.summernote.ui;
        this.$editable = context.layoutInfo.editable;
        this.options = context.options;
        this.hint = this.options.hint || [];
        this.direction = this.options.hintDirection || 'bottom';
        this.hints = $.isArray(this.hint) ? this.hint : [this.hint];

        this.events = {
          'summernote.keyup': (we, e) => {
            if (!e.isDefaultPrevented()) {
              this.handleKeyup(e);
            }
          },
          'summernote.keydown': (we, e) => {
            this.handleKeydown(e);
          },
          'summernote.disable summernote.dialog.shown': () => {
            this.hide();
          },
        };
      }

      shouldInitialize() {
        return this.hints.length > 0;
      }

      initialize() {
        this.lastWordRange = null;
        this.$popover = this.ui.popover({
          className: 'note-hint-popover',
          hideArrow: true,
          direction: '',
        }).render().appendTo(this.options.container);

        this.$popover.hide();
        this.$content = this.$popover.find('.popover-content,.note-popover-content');
        this.$content.on('click', '.note-hint-item', (e) => {
          this.$content.find('.active').removeClass('active');
          $(e.currentTarget).addClass('active');
          this.replace();
        });
      }

      destroy() {
        this.$popover.remove();
      }

      selectItem($item) {
        this.$content.find('.active').removeClass('active');
        $item.addClass('active');

        this.$content[0].scrollTop = $item[0].offsetTop - (this.$content.innerHeight() / 2);
      }

      moveDown() {
        const $current = this.$content.find('.note-hint-item.active');
        const $next = $current.next();

        if ($next.length) {
          this.selectItem($next);
        } else {
          let $nextGroup = $current.parent().next();

          if (!$nextGroup.length) {
            $nextGroup = this.$content.find('.note-hint-group').first();
          }

          this.selectItem($nextGroup.find('.note-hint-item').first());
        }
      }

      moveUp() {
        const $current = this.$content.find('.note-hint-item.active');
        const $prev = $current.prev();

        if ($prev.length) {
          this.selectItem($prev);
        } else {
          let $prevGroup = $current.parent().prev();

          if (!$prevGroup.length) {
            $prevGroup = this.$content.find('.note-hint-group').last();
          }

          this.selectItem($prevGroup.find('.note-hint-item').last());
        }
      }

      replace() {
        const $item = this.$content.find('.note-hint-item.active');

        if ($item.length) {
          const node = this.nodeFromItem($item);
          // XXX: consider to move codes to editor for recording redo/undo.
          this.lastWordRange.insertNode(node);
          range.createFromNode(node).collapse().select();

          this.lastWordRange = null;
          this.hide();
          this.context.triggerEvent('change', this.$editable.html(), this.$editable[0]);
          this.context.invoke('editor.focus');
        }
      }

      nodeFromItem($item) {
        const hint = this.hints[$item.data('index')];
        const item = $item.data('item');
        let node = hint.content ? hint.content(item) : item;
        if (typeof node === 'string') {
          node = dom.createText(node);
        }
        return node;
      }

      createItemTemplates(hintIdx, items) {
        const hint = this.hints[hintIdx];
        return items.map((item, idx) => {
          const $item = $('<div class="note-hint-item"/>');
          $item.append(hint.template ? hint.template(item) : item + '');
          $item.data({
            'index': hintIdx,
            'item': item,
          });
          return $item;
        });
      }

      handleKeydown(e) {
        if (!this.$popover.is(':visible')) {
          return;
        }

        if (e.keyCode === key.code.ENTER) {
          e.preventDefault();
          this.replace();
        } else if (e.keyCode === key.code.UP) {
          e.preventDefault();
          this.moveUp();
        } else if (e.keyCode === key.code.DOWN) {
          e.preventDefault();
          this.moveDown();
        }
      }

      searchKeyword(index, keyword, callback) {
        const hint = this.hints[index];
        if (hint && hint.match.test(keyword) && hint.search) {
          const matches = hint.match.exec(keyword);
          hint.search(matches[1], callback);
        } else {
          callback();
        }
      }

      createGroup(idx, keyword) {
        const $group = $('<div class="note-hint-group note-hint-group-' + idx + '"/>');
        this.searchKeyword(idx, keyword, (items) => {
          items = items || [];
          if (items.length) {
            $group.html(this.createItemTemplates(idx, items));
            this.show();
          }
        });

        return $group;
      }

      handleKeyup(e) {
        if (!lists.contains([key.code.ENTER, key.code.UP, key.code.DOWN], e.keyCode)) {
          const wordRange = this.context.invoke('editor.getLastRange').getWordRange();
          const keyword = wordRange.toString();
          if (this.hints.length && keyword) {
            this.$content.empty();

            const bnd = func.rect2bnd(lists.last(wordRange.getClientRects()));
            if (bnd) {
              this.$popover.hide();
              this.lastWordRange = wordRange;
              this.hints.forEach((hint, idx) => {
                if (hint.match.test(keyword)) {
                  this.createGroup(idx, keyword).appendTo(this.$content);
                }
              });
              // select first .note-hint-item
              this.$content.find('.note-hint-item:first').addClass('active');

              // set position for popover after group is created
              if (this.direction === 'top') {
                this.$popover.css({
                  left: bnd.left,
                  top: bnd.top - this.$popover.outerHeight() - POPOVER_DIST,
                });
              } else {
                this.$popover.css({
                  left: bnd.left,
                  top: bnd.top + bnd.height + POPOVER_DIST,
                });
              }
            }
          } else {
            this.hide();
          }
        }
      }

      show() {
        this.$popover.show();
      }

      hide() {
        this.$popover.hide();
      }
    }