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Support comb textfields for printing #12177

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merged 1 commit into from
Aug 9, 2020
Merged

Support comb textfields for printing #12177

merged 1 commit into from
Aug 9, 2020

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calixteman
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@calixteman calixteman changed the title Comb Support comb textfields for printing Aug 5, 2020
@calixteman calixteman mentioned this pull request Aug 5, 2020
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@timvandermeij timvandermeij added annotations form-acroform printing Gecko 81 Tracking work planned for Form Fill in Shirley 81 release labels Aug 5, 2020
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timvandermeij reviewed Aug 5, 2020
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Looks good with these comments addressed. (I only checked the last commit for this PR since the rest is in other PRs.)

src/core/annotation.js
@@ -987,6 +987,22 @@ class WidgetAnnotation extends Annotation {
const vPadding = defaultPadding + Math.abs(descent) * fontSize;
const defaultAppearance = this.data.defaultAppearance;

if (this.data.comb) {
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Since comb is a specific property of text widget annotations (and not other widget annotations), this code should live in the TextWidgetAnnotation class instead.

src/core/annotation.js Outdated
let first = true;
for (const character of value) {
if (first) {
buf += ` (${character}) Tj`;
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To reduce the number of intermediate strings being created, we normally don't append strings to strings. Instead, we push all strings to an array and join them at the end, which is a bit more efficient. Can we do that here as well? Look at

pdf.js/src/core/core_utils.js

Lines 113 to 131 in 50bc4a1

const romanBuf = [];
let pos;
// Thousands
while (number >= 1000) {
number -= 1000;
romanBuf.push("M");
}
// Hundreds
pos = (number / 100) | 0;
number %= 100;
romanBuf.push(ROMAN_NUMBER_MAP[pos]);
// Tens
pos = (number / 10) | 0;
number %= 10;
romanBuf.push(ROMAN_NUMBER_MAP[10 + pos]);
// Ones
romanBuf.push(ROMAN_NUMBER_MAP[20 + number]);
const romanStr = romanBuf.join("");
for the pattern we use.

Moreover, this will also fix the line let buf = ... above since that is longer than the 80 character limit. If we split that large string into two strings we can simply push those into the array so it fits with the character limit again (I'm surprised ESLint doesn't complain about this already...).

test/unit/annotation_spec.js Outdated
}, done.fail)
.then(appearance => {
expect(appearance).toEqual(
"/Tx BMC q BT /Helv 5 Tf 1 0 0 1 2 2 Tm (a) Tj 8.00 0 Td (a) Tj 8.00 0 Td (a) Tj 8.00 0 Td (a) Tj 8.00 0 Td (a) Tj 8.00 0 Td (a) Tj 8.00 0 Td (a) Tj 8.00 0 Td (a) Tj ET Q EMC"
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This line also exceeds the 80 character limit. Please split it up by concatenating smaller substrings.

@timvandermeij timvandermeij mentioned this pull request Aug 5, 2020
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src/core/annotation.js Outdated
@@ -987,6 +987,22 @@ class WidgetAnnotation extends Annotation {
const vPadding = defaultPadding + Math.abs(descent) * fontSize;
const defaultAppearance = this.data.defaultAppearance;

if (this.data.comb) {
const combWidth = (totalWidth / this.data.maxLen).toFixed(2);
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@timvandermeij timvandermeij Aug 5, 2020 •
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To prevent this method from being too big, I would suggest to move the comb handling code to a private method named _getCombAppearance similar to what you did for the multiline strings.

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/botio-linux preview

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pdfjsbot commented Aug 8, 2020

From: Bot.io (Linux m4)

Received

Command cmd_preview from @timvandermeij received. Current queue size: 0

Live output at: http://54.67.70.0:8877/d16429acffb4e81/output.txt

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pdfjsbot commented Aug 8, 2020

From: Bot.io (Linux m4)

Success

Full output at http://54.67.70.0:8877/d16429acffb4e81/output.txt

Total script time: 3.48 mins

Published

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The combs work fine, it's only the multiline text fields that don't work. For completeness I'm attaching the document where the comb is rendered, but the multiline is not:

out.pdf

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This requires a rebase after the multiline text PR.

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/botio-linux preview

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pdfjsbot commented Aug 9, 2020

From: Bot.io (Linux m4)

Received

Command cmd_preview from @timvandermeij received. Current queue size: 1

Live output at: http://54.67.70.0:8877/8be6a46f4f79845/output.txt

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/botio test

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pdfjsbot commented Aug 9, 2020

From: Bot.io (Linux m4)

Received

Command cmd_test from @timvandermeij received. Current queue size: 2

Live output at: http://54.67.70.0:8877/6d6248273243b79/output.txt

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pdfjsbot commented Aug 9, 2020

From: Bot.io (Windows)

Received

Command cmd_test from @timvandermeij received. Current queue size: 1

Live output at: http://54.215.176.217:8877/2ccc06a49e28fae/output.txt

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pdfjsbot commented Aug 9, 2020

From: Bot.io (Linux m4)

Success

Full output at http://54.67.70.0:8877/8be6a46f4f79845/output.txt

Total script time: 3.37 mins

Published

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pdfjsbot commented Aug 9, 2020

From: Bot.io (Linux m4)

Failed

Full output at http://54.67.70.0:8877/6d6248273243b79/output.txt

Total script time: 27.16 mins

  • Font tests: Passed
  • Unit tests: FAILED
  • Regression tests: FAILED

Image differences available at: http://54.67.70.0:8877/6d6248273243b79/reftest-analyzer.html#web=eq.log

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pdfjsbot commented Aug 9, 2020

From: Bot.io (Windows)

Failed

Full output at http://54.215.176.217:8877/2ccc06a49e28fae/output.txt

Total script time: 30.07 mins

  • Font tests: Passed
  • Unit tests: Passed
  • Regression tests: FAILED

Image differences available at: http://54.215.176.217:8877/2ccc06a49e28fae/reftest-analyzer.html#web=eq.log

@timvandermeij timvandermeij merged commit 6620861 into mozilla:master Aug 9, 2020
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Nice work!

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