xsl
9eec4369da
Preserve H5 flows while adding Taobao identity, native capture, reports and isolated local development. Fix canceled province selection and expired-session logout. Record passing local regressions, two pre-existing H5 assertion failures and pending platform validation.
34 lines
1.9 KiB
JavaScript
34 lines
1.9 KiB
JavaScript
// Always redraw to JPEG: native compressImage changes quality, not dimensions.
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var MAX_SIDE = 1280;
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function compressToBase64(src, page) {
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return new Promise(function (resolve, reject) {
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my.getImageInfo({ src: src, success: function (info) {
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if (page.alive === false) { reject({ canceled: true }); return; }
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if (!(info.width > 0 && info.height > 0)) { reject(new Error('无法读取照片尺寸，请重新选择')); return; }
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var scale = Math.min(1, MAX_SIDE / Math.max(info.width, info.height));
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var w = Math.max(1, Math.round(info.width * scale)), h = Math.max(1, Math.round(info.height * scale));
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page.setData({ compressWidth: w, compressHeight: h }, function () {
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if (page.alive === false) { reject({ canceled: true }); return; }
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try {
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var ctx = my.createCanvasContext('compress-canvas');
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ctx.clearRect(0, 0, w, h);
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ctx.drawImage(src, 0, 0, w, h);
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ctx.draw(false, function () {
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if (page.alive === false) { reject({ canceled: true }); return; }
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ctx.toTempFilePath({ x: 0, y: 0, width: w, height: h, destWidth: w, destHeight: h, fileType: 'jpg', quality: 0.88,
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success: function (result) {
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var file = result.apFilePath || result.tempFilePath;
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if (!file) { reject(new Error('照片处理失败，请重试')); return; }
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try {
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my.getFileSystemManager().readFile({ filePath: file, encoding: 'base64',
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success: function (r) { resolve('data:image/jpeg;base64,' + r.data); }, fail: reject });
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} catch (e) { reject(new Error('当前淘宝版本不支持照片读取，请升级后重试')); }
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}, fail: reject });
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});
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} catch (e) { reject(new Error('照片处理不可用，请升级淘宝后重试')); }
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});
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}, fail: reject });
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});
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}
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module.exports = { MAX_SIDE: MAX_SIDE, compressToBase64: compressToBase64 };
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