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fix: failure on immutable webContents.print(options) #40030

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merged 1 commit into from
Sep 28, 2023
Merged

fix: failure on immutable webContents.print(options) #40030

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74 changes: 39 additions & 35 deletions lib/browser/api/web-contents.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -337,49 +337,53 @@ WebContents.prototype.printToPDF = async function (options) {
// TODO(codebytere): deduplicate argument sanitization by moving rest of
// print param logic into new file shared between printToPDF and print
WebContents.prototype.print = function (options: ElectronInternal.WebContentsPrintOptions, callback) {
if (typeof options === 'object') {
const pageSize = options.pageSize ?? 'A4';
if (typeof pageSize === 'object') {
if (!pageSize.height || !pageSize.width) {
throw new Error('height and width properties are required for pageSize');
}
if (typeof options !== 'object') {
throw new Error('webContents.print(): Invalid print settings specified.');
}

// Dimensions in Microns - 1 meter = 10^6 microns
const height = Math.ceil(pageSize.height);
const width = Math.ceil(pageSize.width);
if (!isValidCustomPageSize(width, height)) {
throw new Error('height and width properties must be minimum 352 microns.');
}
const printSettings: Record<string, any> = { ...options };

options.mediaSize = {
name: 'CUSTOM',
custom_display_name: 'Custom',
height_microns: height,
width_microns: width,
imageable_area_left_microns: 0,
imageable_area_bottom_microns: 0,
imageable_area_right_microns: width,
imageable_area_top_microns: height
};
} else if (typeof pageSize === 'string' && PDFPageSizes[pageSize]) {
const mediaSize = PDFPageSizes[pageSize];
options.mediaSize = {
...mediaSize,
imageable_area_left_microns: 0,
imageable_area_bottom_microns: 0,
imageable_area_right_microns: mediaSize.width_microns,
imageable_area_top_microns: mediaSize.height_microns
};
} else {
throw new Error(`Unsupported pageSize: ${pageSize}`);
const pageSize = options.pageSize ?? 'A4';
if (typeof pageSize === 'object') {
if (!pageSize.height || !pageSize.width) {
throw new Error('height and width properties are required for pageSize');
}

// Dimensions in Microns - 1 meter = 10^6 microns
const height = Math.ceil(pageSize.height);
const width = Math.ceil(pageSize.width);
if (!isValidCustomPageSize(width, height)) {
throw new Error('height and width properties must be minimum 352 microns.');
}

printSettings.mediaSize = {
name: 'CUSTOM',
custom_display_name: 'Custom',
height_microns: height,
width_microns: width,
imageable_area_left_microns: 0,
imageable_area_bottom_microns: 0,
imageable_area_right_microns: width,
imageable_area_top_microns: height
};
} else if (typeof pageSize === 'string' && PDFPageSizes[pageSize]) {
const mediaSize = PDFPageSizes[pageSize];
printSettings.mediaSize = {
...mediaSize,
imageable_area_left_microns: 0,
imageable_area_bottom_microns: 0,
imageable_area_right_microns: mediaSize.width_microns,
imageable_area_top_microns: mediaSize.height_microns
};
} else {
throw new Error(`Unsupported pageSize: ${pageSize}`);
}

if (this._print) {
if (callback) {
this._print(options, callback);
this._print(printSettings, callback);
} else {
this._print(options);
this._print(printSettings);
}
} else {
console.error('Error: Printing feature is disabled.');
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