Proyectos de Subversion Moodle

{"version":3,"file":"equation.min.js","sources":["../src/equation.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 * Equation helper for Tiny Equation plugin.\n *\n * @module      tiny_equation/equation\n * @copyright   2022 Huong Nguyen <huongnv13@gmail.com>\n * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n */\n\nimport Selectors from 'tiny_equation/selectors';\n\nlet sourceEquation = null;\n\n/**\n * Get the source equation.\n * @returns {Object}\n */\nexport const getSourceEquation = () => sourceEquation;\n\n/**\n * Get selected equation.\n * @param {TinyMCE} editor\n * @returns {boolean}\n */\nexport const getSelectedEquation = (editor) => {\n    const currentSelection = editor.selection.getSel();\n    if (!currentSelection) {\n        // Do the early return if there is no text selected.\n        return false;\n    }\n    const textSelection = editor.selection.getNode().textContent;\n    const currentCaretPos = currentSelection.focusOffset;\n    let returnValue = false;\n\n    Selectors.equationPatterns.forEach((pattern) => {\n        // For each pattern in turn, find all whole matches (including the delimiters).\n        const regexPattern = new RegExp(pattern.source, \"g\");\n        [...textSelection.matchAll(regexPattern)].forEach((matches) => {\n            const match = matches[0];\n            // Check each occurrence of this match.\n            let startIndex = 0;\n            const startOuter = textSelection.indexOf(match, startIndex);\n            const endOuter = startOuter + match.length;\n\n            // This match is in our current position - fetch the innerMatch data.\n            const innerMatch = match.match(pattern);\n            if (innerMatch && innerMatch.length) {\n                // We need the start and end of the inner match for later.\n                const startInner = textSelection.indexOf(innerMatch[1], startOuter);\n                const endInner = startInner + innerMatch[1].length;\n\n                // We need to check the caret position before returning the match.\n                if (currentCaretPos >= startOuter && currentCaretPos <= endOuter) {\n                    // We'll be returning the inner match for use in the editor itself.\n                    returnValue = innerMatch[1];\n\n                    // Save all data for later.\n                    sourceEquation = {\n                        // Inner match data.\n                        startInnerPosition: startInner,\n                        endInnerPosition: endInner,\n                        innerMatch: innerMatch\n                    };\n\n                    return;\n                }\n            }\n\n            // Update the startIndex to match the end of the current match so that we can continue hunting\n            // for further matches.\n            startIndex = endOuter;\n        });\n    });\n\n    // We trim the equation when we load it and then add spaces when we save it.\n    if (returnValue !== false) {\n        returnValue = returnValue.trim();\n    } else {\n        // Clear the saved source equation.\n        sourceEquation = null;\n    }\n\n    return returnValue;\n};\n\n/**\n * Get current equation data.\n * @param {TinyMCE} editor\n * @returns {{}}\n */\nexport const getCurrentEquationData = (editor) => {\n    let properties = {};\n    const equation = getSelectedEquation(editor);\n    if (equation) {\n        properties.equation = equation;\n    }\n\n    return properties;\n};\n\n/**\n * Handle insertion of a new equation, or update of an existing one.\n * @param {Element} currentForm\n * @param {TinyMCE} editor\n */\nexport const setEquation = (currentForm, editor) => {\n    const input = currentForm.querySelector(Selectors.elements.equationTextArea);\n    const sourceEquation = getSourceEquation();\n    let value = input.value;\n\n    if (value !== '') {\n        if (sourceEquation) {\n            const selectedNode = editor.selection.getNode();\n            const text = selectedNode.textContent;\n            value = ' ' + value + ' ';\n            selectedNode.textContent = text.slice(0, sourceEquation.startInnerPosition)\n                + value\n                + text.slice(sourceEquation.endInnerPosition);\n        } else {\n            value = Selectors.delimiters.start + ' ' + value + ' ' + Selectors.delimiters.end;\n            editor.insertContent(value);\n        }\n    }\n};\n"],"names":["sourceEquation","getSourceEquation","getSelectedEquation","editor","currentSelection","selection","getSel","textSelection","getNode","textContent","currentCaretPos","focusOffset","returnValue","equationPatterns","forEach","pattern","regexPattern","RegExp","source","matchAll","matches","match","startIndex","startOuter","indexOf","endOuter","length","innerMatch","startInner","endInner","startInnerPosition","endInnerPosition","trim","properties","equation","currentForm","input","querySelector","Selectors","elements","equationTextArea","value","selectedNode","text","slice","delimiters","start","end","insertContent"],"mappings":";;;;;;;mPAyBIA,eAAiB,WAMRC,kBAAoB,IAAMD,kEAO1BE,oBAAuBC,eAC1BC,iBAAmBD,OAAOE,UAAUC,aACrCF,wBAEM,QAELG,cAAgBJ,OAAOE,UAAUG,UAAUC,YAC3CC,gBAAkBN,iBAAiBO,gBACrCC,aAAc,4BAERC,iBAAiBC,SAASC,gBAE1BC,aAAe,IAAIC,OAAOF,QAAQG,OAAQ,SAC5CX,cAAcY,SAASH,eAAeF,SAASM,gBACzCC,MAAQD,QAAQ,OAElBE,WAAa,QACXC,WAAahB,cAAciB,QAAQH,MAAOC,YAC1CG,SAAWF,WAAaF,MAAMK,OAG9BC,WAAaN,MAAMA,MAAMN,YAC3BY,YAAcA,WAAWD,OAAQ,OAE3BE,WAAarB,cAAciB,QAAQG,WAAW,GAAIJ,YAClDM,SAAWD,WAAaD,WAAW,GAAGD,UAGxChB,iBAAmBa,YAAcb,iBAAmBe,gBAEpDb,YAAce,WAAW,QAGzB3B,eAAiB,CAEb8B,mBAAoBF,WACpBG,iBAAkBF,SAClBF,WAAYA,aASxBL,WAAaG,gBAKD,IAAhBb,YACAA,YAAcA,YAAYoB,OAG1BhC,eAAiB,KAGdY,8FAQ4BT,aAC/B8B,WAAa,SACXC,SAAWhC,oBAAoBC,eACjC+B,WACAD,WAAWC,SAAWA,UAGnBD,iCAQgB,CAACE,YAAahC,gBAC/BiC,MAAQD,YAAYE,cAAcC,mBAAUC,SAASC,kBACrDxC,eAAiBC,wBACnBwC,MAAQL,MAAMK,SAEJ,KAAVA,SACIzC,eAAgB,OACV0C,aAAevC,OAAOE,UAAUG,UAChCmC,KAAOD,aAAajC,YAC1BgC,MAAQ,IAAMA,MAAQ,IACtBC,aAAajC,YAAckC,KAAKC,MAAM,EAAG5C,eAAe8B,oBAClDW,MACAE,KAAKC,MAAM5C,eAAe+B,uBAEhCU,MAAQH,mBAAUO,WAAWC,MAAQ,IAAML,MAAQ,IAAMH,mBAAUO,WAAWE,IAC9E5C,OAAO6C,cAAcP"}