/* * Copyright (C) 2021 Yomichan Authors * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <https://www.gnu.org/licenses/>. */ class PronunciationGenerator { constructor(japaneseUtil) { this._japaneseUtil = japaneseUtil; } createPronunciationText(morae, downstepPosition, nasalPositions, devoicePositions) { const jp = this._japaneseUtil; const nasalPositionsSet = nasalPositions.length > 0 ? new Set(nasalPositions) : null; const devoicePositionsSet = devoicePositions.length > 0 ? new Set(devoicePositions) : null; const container = document.createElement('span'); container.className = 'pronunciation-text'; for (let i = 0, ii = morae.length; i < ii; ++i) { const i1 = i + 1; const mora = morae[i]; const highPitch = jp.isMoraPitchHigh(i, downstepPosition); const highPitchNext = jp.isMoraPitchHigh(i1, downstepPosition); const nasal = nasalPositionsSet !== null && nasalPositionsSet.has(i1); const devoice = devoicePositionsSet !== null && devoicePositionsSet.has(i1); const n1 = document.createElement('span'); n1.className = 'pronunciation-mora'; n1.dataset.position = `${i}`; n1.dataset.pitch = highPitch ? 'high' : 'low'; n1.dataset.pitchNext = highPitchNext ? 'high' : 'low'; const characterNodes = []; for (const character of mora) { const n2 = document.createElement('span'); n2.className = 'pronunciation-character'; n2.textContent = character; n1.appendChild(n2); characterNodes.push(n2); } if (devoice) { n1.dataset.devoice = 'true'; const n3 = document.createElement('span'); n3.className = 'pronunciation-devoice-indicator'; n1.appendChild(n3); } if (nasal && characterNodes.length > 0) { n1.dataset.nasal = 'true'; const group = document.createElement('span'); group.className = 'pronunciation-character-group'; const n2 = characterNodes[0]; const character = n2.textContent; const characterInfo = jp.getKanaDiacriticInfo(character); if (characterInfo !== null) { n1.dataset.originalText = mora; n2.dataset.originalText = character; n2.textContent = characterInfo.character; } let n3 = document.createElement('span'); n3.className = 'pronunciation-nasal-diacritic'; n3.textContent = '\u309a'; // Combining handakuten group.appendChild(n3); n3 = document.createElement('span'); n3.className = 'pronunciation-nasal-indicator'; group.appendChild(n3); n2.parentNode.replaceChild(group, n2); group.insertBefore(n2, group.firstChild); } const line = document.createElement('span'); line.className = 'pronunciation-mora-line'; n1.appendChild(line); container.appendChild(n1); } return container; } createPronunciationGraph(morae, downstepPosition) { const jp = this._japaneseUtil; const ii = morae.length; const svgns = 'http://www.w3.org/2000/svg'; const svg = document.createElementNS(svgns, 'svg'); svg.setAttribute('xmlns', svgns); svg.setAttribute('class', 'pronunciation-graph'); svg.setAttribute('focusable', 'false'); svg.setAttribute('viewBox', `0 0 ${50 * (ii + 1)} 100`); if (ii <= 0) { return svg; } const path1 = document.createElementNS(svgns, 'path'); svg.appendChild(path1); const path2 = document.createElementNS(svgns, 'path'); svg.appendChild(path2); const pathPoints = []; for (let i = 0; i < ii; ++i) { const highPitch = jp.isMoraPitchHigh(i, downstepPosition); const highPitchNext = jp.isMoraPitchHigh(i + 1, downstepPosition); const x = i * 50 + 25; const y = highPitch ? 25 : 75; if (highPitch && !highPitchNext) { this._addGraphDotDownstep(svg, svgns, x, y); } else { this._addGraphDot(svg, svgns, x, y); } pathPoints.push(`${x} ${y}`); } path1.setAttribute('class', 'pronunciation-graph-line'); path1.setAttribute('d', `M${pathPoints.join(' L')}`); pathPoints.splice(0, ii - 1); { const highPitch = jp.isMoraPitchHigh(ii, downstepPosition); const x = ii * 50 + 25; const y = highPitch ? 25 : 75; this._addGraphTriangle(svg, svgns, x, y); pathPoints.push(`${x} ${y}`); } path2.setAttribute('class', 'pronunciation-graph-line-tail'); path2.setAttribute('d', `M${pathPoints.join(' L')}`); return svg; } createPronunciationDownstepNotation(downstepPosition) { downstepPosition = `${downstepPosition}`; const n1 = document.createElement('span'); n1.className = 'pronunciation-downstep-notation'; n1.dataset.downstepPosition = downstepPosition; let n2 = document.createElement('span'); n2.className = 'pronunciation-downstep-notation-prefix'; n2.textContent = '['; n1.appendChild(n2); n2 = document.createElement('span'); n2.className = 'pronunciation-downstep-notation-number'; n2.textContent = downstepPosition; n1.appendChild(n2); n2 = document.createElement('span'); n2.className = 'pronunciation-downstep-notation-suffix'; n2.textContent = ']'; n1.appendChild(n2); return n1; } // Private _addGraphDot(container, svgns, x, y) { container.appendChild(this._createGraphCircle(svgns, 'pronunciation-graph-dot', x, y, '15')); } _addGraphDotDownstep(container, svgns, x, y) { container.appendChild(this._createGraphCircle(svgns, 'pronunciation-graph-dot-downstep1', x, y, '15')); container.appendChild(this._createGraphCircle(svgns, 'pronunciation-graph-dot-downstep2', x, y, '5')); } _addGraphTriangle(container, svgns, x, y) { const node = document.createElementNS(svgns, 'path'); node.setAttribute('class', 'pronunciation-graph-triangle'); node.setAttribute('d', 'M0 13 L15 -13 L-15 -13 Z'); node.setAttribute('transform', `translate(${x},${y})`); container.appendChild(node); } _createGraphCircle(svgns, className, x, y, radius) { const node = document.createElementNS(svgns, 'circle'); node.setAttribute('class', className); node.setAttribute('cx', `${x}`); node.setAttribute('cy', `${y}`); node.setAttribute('r', radius); return node; } }