all files / block-manager/plugins/block/ list.js

97.37% Statements 148/152
95.74% Branches 90/94
100% Functions 17/17
97.37% Lines 148/152
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define(["require", "exports", "../../../models/enums", "../../../common/utils/selection", "../../../common/utils/block", "../../../common/constant"], function (require, exports, enums_1, selection_1, block_1, constants) {
    "use strict";
    Object.defineProperty(exports, "__esModule", { value: true });
    var ListPlugin = (function () {
        function ListPlugin(manager) {
            this.parent = manager;
        }
        ListPlugin.prototype.handleListKeyActions = function (event, blockElement) {
            var range = selection_1.getSelectedRange();
            var blockModel = block_1.getBlockModelById(blockElement.id, this.parent.getEditorBlocks());
            var isActionProcessed = false;
            switch (event.key) {
                case 'Enter':
                    this.handleEnterKey(event, blockElement, range, blockModel);
                    this.parent.isEntireEditorSelected = false;
                    isActionProcessed = true;
                    break;
                case 'Backspace':
                    this.handleBackspaceKey(event, blockElement, range, blockModel);
                    this.parent.isEntireEditorSelected = false;
                    isActionProcessed = true;
                    break;
            }
            return isActionProcessed;
        };
        ListPlugin.prototype.handleListTriggerKey = function (event, blockElement, blockModel) {
            var content = blockElement.textContent.trim();
            if (content.length <= 0) {
                return;
            }
            var validLength = (content.startsWith('*') || content.startsWith('-')) ? 1 : 2;
            var isListTrigger = content.startsWith('*') ||
                content.startsWith('-') ||
                content.startsWith('1.') ||
                content.startsWith('[]');
            if (isListTrigger && event.key === ' ' && event.code === 'Space' && content.length === validLength) {
                event.preventDefault();
                var listType = void 0;
                switch (content) {
                    case '*':
                    case '-':
                        listType = enums_1.BlockType.BulletList.toString();
                        break;
                    case '1.':
                        listType = enums_1.BlockType.NumberedList.toString();
                        break;
                    case '[]':
                        listType = enums_1.BlockType.Checklist.toString();
                        break;
                }
                this.transformBlockToList(blockElement, blockModel, listType);
            }
        };
        ListPlugin.prototype.handleEnterKey = function (event, blockElement, range, blockModel) {
            event.preventDefault();
            var isEmpty = blockElement.textContent.trim() === '';
            if (isEmpty) {
                if (blockModel.indent > 0) {
                    this.parent.execCommand({ command: 'IndentBlock', state: {
                            blockIDs: [blockModel.id],
                            shouldDecrease: true
                        } });
                }
                else {
                    this.parent.blockCommand.transformBlockToParagraph(blockElement, blockModel);
                }
            }
            else {
                this.parent.execCommand({ command: 'SplitBlock' });
            }
        };
        ListPlugin.prototype.handleBackspaceKey = function (event, blockElement, range, blockModel) {
            var isAtStart = range.collapsed && range.startOffset === 0;
            var isEmpty = blockElement.textContent.trim() === '';
            if (!isAtStart && !isEmpty) {
                return;
            }
            event.preventDefault();
            this.parent.blockCommand.transformBlockToParagraph(blockElement, blockModel);
            this.recalculateMarkersForListItems();
        };
        ListPlugin.prototype.transformBlockToList = function (blockElement, blockModel, listType) {
            if (blockModel.content.length > 0) {
                blockModel.content[0].content = '';
            }
            var newBlockElement = this.parent.blockCommand.transformBlock({
                block: blockModel,
                blockElement: blockElement,
                newBlockType: listType
            });
            var contentElement = block_1.getBlockContentElement(newBlockElement);
            selection_1.setCursorPosition(contentElement, 0);
            this.updateListItemMarkers(newBlockElement);
        };
        ListPlugin.prototype.updateListItemMarkers = function (blockElement) {
            var prevBlockType = blockElement.getAttribute('data-block-type');
            var listItem = blockElement.querySelector('li');
            var isNumbered = prevBlockType === enums_1.BlockType.NumberedList;
            var isChecklist = prevBlockType === enums_1.BlockType.Checklist;
            if (isChecklist || !isNumbered) {
                return;
            }
            var index = this.getNumberedListItemIndex(blockElement);
            var indentLevel = this.getIndentLevel(blockElement);
            var marker = this.getListMarker(index, indentLevel);
            listItem.style.setProperty('list-style-type', "\"" + marker + " \"");
        };
        ListPlugin.prototype.getNumberedListItemIndex = function (blockElement) {
            var index = 1;
            var allBlocks = this.getAllBlockElements(blockElement);
            var currentBlockIndex = allBlocks.indexOf(blockElement);
            if (currentBlockIndex < 0) {
                return index;
            }
            var currentIndentLevel = this.getIndentLevel(blockElement);
            for (var i = currentBlockIndex - 1; i >= 0; i--) {
                var prevBlock = allBlocks[i];
                var prevBlockType = prevBlock.getAttribute('data-block-type');
                var prevIndentLevel = this.getIndentLevel(prevBlock);
                if (prevBlockType !== enums_1.BlockType.NumberedList || currentIndentLevel > prevIndentLevel) {
                    break;
                }
                if (prevIndentLevel === currentIndentLevel) {
                    index++;
                }
            }
            return index;
        };
        ListPlugin.prototype.getIndentLevel = function (blockElement) {
            return parseInt((blockElement.style.getPropertyValue(constants.INDENT_KEY)), 10) / ListPlugin.INDENT_STEP_SIZE;
        };
        ListPlugin.prototype.getListMarker = function (index, indentLevel) {
            var getRomanNumeral = function (num) {
                if (num >= 1 && num <= 20) {
                    return ListPlugin.ROMANNUMERALLOOKUP[num];
                }
                var romanMap = [
                    [1000, 'm'], [900, 'cm'], [500, 'd'], [400, 'cd'], [100, 'c'], [90, 'xc'],
                    [50, 'l'], [40, 'xl'], [10, 'x'], [9, 'ix'], [5, 'v'], [4, 'iv'], [1, 'i']
                ];
                var result = '';
                for (var _i = 0, romanMap_1 = romanMap; _i < romanMap_1.length; _i++) {
                    var _a = romanMap_1[_i], value = _a[0], symbol = _a[1];
                    while (num >= value) {
                        result += symbol;
                        num -= value;
                    }
                }
                return result;
            };
            var getLetterSequence = function (num) {
                var result = '';
                while (num > 0) {
                    num--;
                    result = String.fromCharCode(97 + (num % 26)) + result;
                    num = Math.floor(num / 26);
                }
                return result;
            };
            switch (indentLevel % 3) {
                case 0:
                    return index + ".";
                case 1:
                    return getLetterSequence(index) + ".";
                case 2:
                    return getRomanNumeral(index) + ".";
                default:
                    return index + ".";
            }
        };
        ListPlugin.prototype.recalculateMarkersForListItems = function () {
            var allBlocks = this.getAllBlockElements();
            var indexByIndent = new Map();
            for (var _i = 0, allBlocks_1 = allBlocks; _i < allBlocks_1.length; _i++) {
                var block = allBlocks_1[_i];
                var blockType = block.getAttribute('data-block-type');
                if (!block_1.isListTypeBlock(blockType) || blockType === enums_1.BlockType.Checklist || blockType === enums_1.BlockType.BulletList) {
                    continue;
                }
                var indentLevel = this.getIndentLevel(block);
                var prevBlockIndex = allBlocks.indexOf(block) - 1;
                var prevBlock = prevBlockIndex >= 0 ? allBlocks[prevBlockIndex] : null;
                var prevBlockType = prevBlock ? prevBlock.getAttribute('data-block-type') : '';
                var prevIndentLevel = prevBlock ? this.getIndentLevel(prevBlock) : -1;
                if (prevBlock && (prevIndentLevel > indentLevel ||
                    (prevIndentLevel === indentLevel && prevBlockType !== enums_1.BlockType.NumberedList))) {
                    for (var _a = 0, _b = indexByIndent; _a < _b.length; _a++) {
                        var level = _b[_a][0];
                        if (level > indentLevel) {
                            indexByIndent.delete(level);
                        }
                    }
                }
                if (prevBlockType !== enums_1.BlockType.NumberedList || prevIndentLevel < indentLevel) {
                    indexByIndent.set(indentLevel, 1);
                }
                else {
                    var currentIndex = (indexByIndent.get(indentLevel) || 0) + 1;
                    indexByIndent.set(indentLevel, currentIndex);
                }
                var index = indexByIndent.get(indentLevel) || 1;
                this.setNumberedListMarker(block, index, indentLevel);
            }
        };
        ListPlugin.prototype.setNumberedListMarker = function (blockElement, index, indent) {
            var listItem = blockElement.querySelector('li');
            var marker = this.getListMarker(index, indent);
            listItem.style.setProperty('list-style-type', "\"" + marker + " \"");
        };
        ListPlugin.prototype.getAllBlockElements = function (focusedBlock) {
            var currentElement = focusedBlock || this.parent.currentFocusedBlock;
            var calloutBlock = currentElement &&
                currentElement.closest('.' + constants.CALLOUT_BLOCK_CLS);
            var toggleBlock = currentElement &&
                currentElement.closest('.' + constants.TOGGLE_BLOCK_CLS);
            var tableBlock = currentElement &&
                currentElement.closest('.' + constants.TABLE_BLOCK_CLS);
            var parentBlock = calloutBlock || toggleBlock || tableBlock;
            var allBlocks = parentBlock
                ? Array.from(parentBlock.querySelectorAll('.' + constants.BLOCK_CLS))
                : Array.from(this.parent.blockContainer.children);
            return allBlocks;
        };
        ListPlugin.INDENT_STEP_SIZE = 20;
        ListPlugin.ROMANNUMERALLOOKUP = {
            1: 'i', 2: 'ii', 3: 'iii', 4: 'iv', 5: 'v',
            6: 'vi', 7: 'vii', 8: 'viii', 9: 'ix', 10: 'x',
            11: 'xi', 12: 'xii', 13: 'xiii', 14: 'xiv', 15: 'xv',
            16: 'xvi', 17: 'xvii', 18: 'xviii', 19: 'xix', 20: 'xx'
        };
        return ListPlugin;
    }());
    exports.ListPlugin = ListPlugin;
});