Proyectos de Subversion Moodle

{"version":3,"file":"bulkselection.min.js","sources":["../../../../src/local/content/actions/bulkselection.js"],"sourcesContent":["// This file is part of Moodle - http://moodle.org/\n//\n// Moodle is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// Moodle is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.\n\n/**\n * Bulk selection auxiliar methods.\n *\n * @module     core_courseformat/local/content/actions/bulkselection\n * @class      core_courseformat/local/content/actions/bulkselection\n * @copyright  2023 Ferran Recio <ferran@moodle.com>\n * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n */\nclass BulkSelector {\n\n    /**\n     * The class constructor.\n     * @param {CourseEditor} courseEditor the original actions component.\n     */\n    constructor(courseEditor) {\n        this.courseEditor = courseEditor;\n        this.selectors = {\n            BULKCMCHECKBOX: `[data-bulkcheckbox][data-action='toggleSelectionCm']`,\n            BULKSECTIONCHECKBOX: `[data-bulkcheckbox][data-action='toggleSelectionSection']`,\n            CONTENT: `#region-main`,\n        };\n    }\n\n    /**\n     * Process a new selection.\n     * @param {Number} id\n     * @param {String} elementType cm or section\n     * @param {Object} settings special selection settings\n     * @param {Boolean} settings.all if the action is over all elements of the same type\n     * @param {Boolean} settings.range if the action is over a range of elements\n     */\n    processNewSelection(id, elementType, settings) {\n        const value = !this._isBulkSelected(id, elementType);\n        if (settings.all && settings.range) {\n            this.switchCurrentSelection();\n            return;\n        }\n        if (!this._isSelectable(id, elementType)) {\n            return;\n        }\n        if (settings.all) {\n            if (elementType == 'cm') {\n                this._updateBulkCmSiblings(id, value);\n            } else {\n                this._updateBulkSelectionAll(elementType, value);\n            }\n            return;\n        }\n        if (settings.range) {\n            this._updateBulkSelectionRange(id, elementType, value);\n            return;\n        }\n        this._updateBulkSelection([id], elementType, value);\n    }\n\n    /**\n     * Switch between section and cm selection.\n     */\n    switchCurrentSelection() {\n        const bulk = this.courseEditor.get('bulk');\n        if (bulk.selectedType === '' || bulk.selection.length == 0) {\n            return;\n        }\n        const newSelectedType = (bulk.selectedType === 'section') ? 'cm' : 'section';\n        let newSelectedIds;\n        if (bulk.selectedType === 'section') {\n            newSelectedIds = this._getCmIdsFromSections(bulk.selection);\n        } else {\n            newSelectedIds = this._getSectionIdsFromCms(bulk.selection);\n        }\n        // Formats can display only a few activities of the section,\n        // We need to select on the activities present in the page.\n        const affectedIds = [];\n        newSelectedIds.forEach(newId => {\n            if (this._getSelector(newId, newSelectedType)) {\n                affectedIds.push(newId);\n            }\n        });\n        this.courseEditor.dispatch('bulkEnable', true);\n        if (affectedIds.length != 0) {\n            this._updateBulkSelection(affectedIds, newSelectedType, true);\n        }\n    }\n\n    /**\n     * Select all elements of the current type.\n     * @param {Boolean} value the wanted selected value\n     */\n    selectAll(value) {\n        const bulk = this.courseEditor.get('bulk');\n        if (bulk.selectedType == '') {\n            return;\n        }\n        if (!value) {\n            this.courseEditor.dispatch('bulkEnable', true);\n            return;\n        }\n        const elementType = bulk.selectedType;\n        this._updateBulkSelectionAll(elementType, value);\n    }\n\n    /**\n     * Checks if all selectable elements are selected.\n     * @returns {Boolean} true if all are selected\n     */\n    checkAllSelected() {\n        const bulk = this.courseEditor.get('bulk');\n        if (bulk.selectedType == '') {\n            return false;\n        }\n        return this._getContentCheckboxes(bulk.selectedType).every(bulkSelect => {\n            if (bulkSelect.disabled) {\n                return true;\n            }\n            // Some sections may not be selectale for bulk actions.\n            if (bulk.selectedType == 'section') {\n                const section = this.courseEditor.get('section', bulkSelect.dataset.id);\n                if (!section.bulkeditable) {\n                    return true;\n                }\n            }\n            return bulk.selection.includes(bulkSelect.dataset.id);\n        });\n    }\n\n    /**\n     * Check if the id is part of the current bulk selection.\n     * @private\n     * @param {Number} id\n     * @param {String} elementType\n     * @returns {Boolean} if the element is present in the current selection.\n     */\n    _isBulkSelected(id, elementType) {\n        const bulk = this.courseEditor.get('bulk');\n        if (bulk.selectedType !== elementType) {\n            return false;\n        }\n        return bulk.selection.includes(id);\n    }\n\n    /**\n     * Update the current bulk selection removing or adding Ids.\n     * @private\n     * @param {Number[]} ids the user selected element id\n     * @param {String} elementType cm or section\n     * @param {Boolean} value the wanted selected value\n     */\n    _updateBulkSelection(ids, elementType, value) {\n        let mutation = elementType;\n        mutation += (value) ? 'Select' : 'Unselect';\n        this.courseEditor.dispatch(mutation, ids);\n    }\n\n    /**\n     * Get all content bulk selector checkboxes of one type (section/cm).\n     * @private\n     * @param {String} elementType section or cm\n     * @returns {HTMLElement[]} an array with all checkboxes\n     */\n    _getContentCheckboxes(elementType) {\n        const selector = (elementType == 'cm') ? this.selectors.BULKCMCHECKBOX : this.selectors.BULKSECTIONCHECKBOX;\n        const checkboxes = document.querySelectorAll(`${this.selectors.CONTENT} ${selector}`);\n        // Converting to array because NodeList has less iteration methods.\n        return [...checkboxes];\n    }\n\n    /**\n     * Validate if an element is selectable in the current page.\n     * @private\n     * @param {Number} id the user selected element id\n     * @param {String} elementType cm or section\n     * @return {Boolean}\n     */\n    _isSelectable(id, elementType) {\n        const bulkSelect = this._getSelector(id, elementType);\n        if (!bulkSelect || bulkSelect.disabled) {\n            return false;\n        }\n        return true;\n    }\n\n    /**\n     * Get as specific element checkbox.\n     * @private\n     * @param {Number} id\n     * @param {String} elementType cm or section\n     * @returns {HTMLElement|undefined}\n     */\n    _getSelector(id, elementType) {\n        let selector = (elementType == 'cm') ? this.selectors.BULKCMCHECKBOX : this.selectors.BULKSECTIONCHECKBOX;\n        selector += `[data-id='${id}']`;\n        return document.querySelector(`${this.selectors.CONTENT} ${selector}`);\n    }\n\n    /**\n     * Update the current bulk selection when a user uses shift to select a range.\n     * @private\n     * @param {Number} id the user selected element id\n     * @param {String} elementType cm or section\n     * @param {Boolean} value the wanted selected value\n     */\n    _updateBulkSelectionRange(id, elementType, value) {\n        const bulk = this.courseEditor.get('bulk');\n        let lastSelectedId = bulk.selection.at(-1);\n        if (bulk.selectedType !== elementType || lastSelectedId == id) {\n            this._updateBulkSelection([id], elementType, value);\n            return;\n        }\n        const affectedIds = [];\n        let found = 0;\n        this._getContentCheckboxes(elementType).every(bulkSelect => {\n            if (bulkSelect.disabled) {\n                return true;\n            }\n            if (elementType == 'section') {\n                const section = this.courseEditor.get('section', bulkSelect.dataset.id);\n                if (value && !section?.bulkeditable) {\n                    return true;\n                }\n            }\n            if (bulkSelect.dataset.id == id || bulkSelect.dataset.id == lastSelectedId) {\n                found++;\n            }\n            if (found == 0) {\n                return true;\n            }\n            affectedIds.push(bulkSelect.dataset.id);\n            return found != 2;\n        });\n        this._updateBulkSelection(affectedIds, elementType, value);\n    }\n\n    /**\n     * Select or unselect all cm siblings.\n     * @private\n     * @param {Number} cmId the user selected element id\n     * @param {Boolean} value the wanted selected value\n     */\n    _updateBulkCmSiblings(cmId, value) {\n        const bulk = this.courseEditor.get('bulk');\n        if (bulk.selectedType === 'section') {\n            return;\n        }\n        const cm = this.courseEditor.get('cm', cmId);\n        const section = this.courseEditor.get('section', cm.sectionid);\n        // Formats can display only a few activities of the section,\n        // We need to select on the activities selectable in the page.\n        const affectedIds = [];\n        section.cmlist.forEach(sectionCmId => {\n            if (this._isSelectable(sectionCmId, 'cm')) {\n                affectedIds.push(sectionCmId);\n            }\n        });\n        this._updateBulkSelection(affectedIds, 'cm', value);\n    }\n\n    /**\n     * Select or unselects al elements of the same type.\n     * @private\n     * @param {String} elementType section or cm\n     * @param {Boolean} value if the elements must be selected or unselected.\n     */\n    _updateBulkSelectionAll(elementType, value) {\n        const affectedIds = [];\n        this._getContentCheckboxes(elementType).forEach(bulkSelect => {\n            if (bulkSelect.disabled) {\n                return;\n            }\n            if (elementType == 'section') {\n                const section = this.courseEditor.get('section', bulkSelect.dataset.id);\n                if (value && !section?.bulkeditable) {\n                    return;\n                }\n            }\n            affectedIds.push(bulkSelect.dataset.id);\n        });\n        this._updateBulkSelection(affectedIds, elementType, value);\n    }\n\n    /**\n     * Get all cm ids from a specific section ids.\n     * @private\n     * @param {Number[]} sectionIds\n     * @returns {Number[]} the cm ids\n     */\n    _getCmIdsFromSections(sectionIds) {\n        const result = [];\n        sectionIds.forEach(sectionId => {\n            const section = this.courseEditor.get('section', sectionId);\n            result.push(...section.cmlist);\n        });\n        return result;\n    }\n\n    /**\n     * Get all section ids containing a specific cm ids.\n     * @private\n     * @param {Number[]} cmIds\n     * @returns {Number[]} the section ids\n     */\n    _getSectionIdsFromCms(cmIds) {\n        const result = new Set();\n        cmIds.forEach(cmId => {\n            const cm = this.courseEditor.get('cm', cmId);\n            if (cm.sectionnumber == 0) {\n                return;\n            }\n            result.add(cm.sectionid);\n        });\n        return [...result];\n    }\n}\n\n/**\n * Process a bulk selection toggle action.\n * @method\n * @param {CourseEditor} courseEditor\n * @param {HTMLElement} target the action element\n * @param {Event} event\n * @param {String} elementType cm or section\n */\nexport const toggleBulkSelectionAction = function(courseEditor, target, event, elementType) {\n    const id = target.dataset.id;\n    if (!id) {\n        return;\n    }\n    // When the action cames from a form element (checkbox) we should not preventDefault.\n    // If we do it the changechecker module will execute the state change twice.\n    if (target.dataset.preventDefault) {\n        event.preventDefault();\n    }\n    // Using shift or alt key can produce text selection.\n    document.getSelection().removeAllRanges();\n\n    const bulkSelector = new BulkSelector(courseEditor);\n    bulkSelector.processNewSelection(\n        id,\n        elementType,\n        {\n            range: event.shiftKey,\n            all: event.altKey,\n        }\n    );\n};\n\n/**\n * Switch the current bulk selection.\n * @method\n * @param {CourseEditor} courseEditor\n */\nexport const switchBulkSelection = function(courseEditor) {\n    const bulkSelector = new BulkSelector(courseEditor);\n    bulkSelector.switchCurrentSelection();\n};\n\n/**\n * Select/unselect all element of the selected type.\n * @method\n * @param {CourseEditor} courseEditor\n * @param {Boolean} value if the elements must be selected or unselected.\n */\nexport const selectAllBulk = function(courseEditor, value) {\n    const bulkSelector = new BulkSelector(courseEditor);\n    bulkSelector.selectAll(value);\n};\n\n/**\n * Check if all possible elements are selected.\n * @method\n * @param {CourseEditor} courseEditor\n * @return {Boolean} if all elements of the current type are selected.\n */\nexport const checkAllBulkSelected = function(courseEditor) {\n    const bulkSelector = new BulkSelector(courseEditor);\n    return 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