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Add nested PDF lists with line numbering

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Adds support for nested PDF lists in motions with line numbering
Numbers and lines can be slightly of in extrem cases.

Lists are supposed to be relatively short lists and are not(!) a replacement
for paragraphs.
Chaning that would require me to create our own implementation of
PDFMake-Lists
This commit is contained in:
Sean Engelhardt 2019-11-19 16:11:33 +01:00
parent 4451fe979e
commit 4599091d57
1 changed files with 21 additions and 10 deletions
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31
client/src/app/core/pdf-services/html-to-pdf.service.ts
View File

@ -129,7 +129,7 @@ export class HtmlToPdfService {
return this.P_MARGIN_BOTTOM;
}
case 'li': {
return this.LI_MARGIN_BOTTOM;
return this.P_MARGIN_BOTTOM;
}
default: {
return this.P_MARGIN_BOTTOM;
@ -234,12 +234,7 @@ export class HtmlToPdfService {
case 'div': {
const children = this.parseChildren(element, styles);
// this introduces a bug with rendering sub-lists in PDF
if (
this.lineNumberingMode === LineNumberingMode.Outside &&
!this.isInsideAList(element) &&
!classes.includes('insert')
) {
if (this.lineNumberingMode === LineNumberingMode.Outside && !classes.includes('insert')) {
newParagraph = this.create('stack');
newParagraph.stack = children;
} else {
@ -268,7 +263,7 @@ export class HtmlToPdfService {
}
// if the list ends (usually due to a new insert cr) prevent margins
if (classes.includes('os-split-after')) {
if (classes.includes('os-split-after') || this.withSublist(element)) {
newParagraph.margin[3] = 0;
}
@ -324,7 +319,10 @@ export class HtmlToPdfService {
break;
}
case 'br': {
if (this.lineNumberingMode === LineNumberingMode.None && classes.includes('os-line-break')) {
if (
(this.lineNumberingMode === LineNumberingMode.None && classes.includes('os-line-break')) ||
(this.lineNumberingMode === LineNumberingMode.Outside && this.isInsideAList(element))
) {
break;
} else {
newParagraph = this.create('text');
@ -347,7 +345,7 @@ export class HtmlToPdfService {
}
// in case of line numbers and only of the list is not nested in another list.
if (this.lineNumberingMode === LineNumberingMode.Outside && !this.isInsideAList(element)) {
if (this.lineNumberingMode === LineNumberingMode.Outside) {
const lines = this.extractLineNumbers(element);
const cleanedChildDom = this.cleanLineNumbers(element);
@ -474,6 +472,17 @@ export class HtmlToPdfService {
};
}
/**
* Checks if a given LI has a sublist
*/
private withSublist(element: Element): boolean {
if (element.nodeName.toLowerCase() === 'li') {
const hasUl = Array.from(element.children).some(child => child.nodeName.toLowerCase() === 'ul');
return hasUl;
}
return false;
}
/**
* Cleans the elements children from line-number spans
*
@ -534,6 +543,8 @@ export class HtmlToPdfService {
// If this is an list item, add some space to the lineNumbers:
if (childrenLineNumbers.length && element.nodeName === 'LI') {
childrenLineNumbers[childrenLineNumbers.length - 1].marginBottom = this.LI_MARGIN_BOTTOM;
} else if (childrenLineNumbers.length && element.parentNode.nodeName === 'LI') {
childrenLineNumbers[childrenLineNumbers.length - 1].marginBottom = this.P_MARGIN_BOTTOM;
}
foundLineNumbers = foundLineNumbers.concat(childrenLineNumbers);