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display flex is breaking UI #2163

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anuj9196 opened this issue May 25, 2024 · 1 comment
Open

display flex is breaking UI #2163

anuj9196 opened this issue May 25, 2024 · 1 comment
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bug Existing features not working as expected

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@anuj9196
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Using Django with Bootstrap 5 for CSS. Here is the HTML to produce the card design

{% load static %}
<html lang="en">
<head>
    <title>Attempt Response</title>
    <link href="{% static 'pdf_report/assets/css/styles.css' %}" rel="stylesheet">
</head>

<body>
<div class="container">
    
    <div class="card my-3">
        <div class="card-header bg-gradient-light text-dark p-3 d-flex align-items-center justify-content-between">
            <div class="card-title text-bold mb-0 d-flex">
                <div class="me-1">3.</div>
                <div>
                    <div class="question">
                        Select the following that does not affect rate of evaporation?
                    </div>
                    <div class="d-flex">
                        <div class="bg-primary text-xxs text-white px-2 py-1 rounded text-bolder me-1">
                            Subject: Science
                        </div>
                        <div class="bg-primary text-xxs text-white px-2 py-1 rounded text-bolder">
                            Multiple choice
                        </div>
                    </div>
                </div>
            </div>
        </div>
        <div class="card-body p-3">
            <div class="answer-preview">
                <div class="preview-multiple-choice blockquote ps-2 mb-0 py-2 fs-6">
                    <div class="form-check d-flex align-items-center me-2">
                        <input class="form-check-input"
                               disabled=""
                               id="input-iwslt1"
                               type="radio"
                               value="" name="a" checked>
                        <label class="custom-control-label mb-0 ms-1 mt-1 text-" for="input-iwslt1">
                            Temperature
                        </label>
                    </div>

                    <div class="form-check d-flex align-items-center me-2">
                        <input class="form-check-input"
                               disabled=""
                               id="input-f84gw3"
                               type="radio"
                               value="" name="a">
                        <label class="custom-control-label mb-0 ms-1 mt-1 text-" for="input-f84gw3">
                            Surface area
                        </label>
                    </div>

                    <div class="form-check d-flex align-items-center me-2">
                        <input class="form-check-input ng-untouched ng-pristine"
                               disabled=""
                               id="input-zy80v2"
                               type="radio"
                               value="">
                        <label class="custom-control-label mb-0 ms-1 mt-1 text-" for="input-zy80v2">
                            Wind speed
                        </label>
                    </div>

                    <div class="form-check d-flex align-items-center me-2">
                        <input class="form-check-input"
                               disabled=""
                               type="radio">
                        <label class="custom-control-label mb-0 ms-1 mt-1 text-success" for="input-ckk0hk">
                            Insoluble heavy impurities
                        </label>
                    </div>
                </div>

            </div>
        </div>
        <div class="card-footer d-flex justify-content-between align-items-center bg-light py-2">
            <div class="d-flex">
                <div class="bg-dark text-xxs text-white px-2 py-1 rounded text-bolder me-1"> Time Spent: 8 sec.</div>
                <div class="bg-dark text-xxs text-white px-2 py-1 rounded text-bolder me-1"> 1 Attempt</div>
                <div class="bg-dark text-xxs text-white px-2 py-1 rounded text-bolder"> Timeout</div>
            </div>
            <div>

            </div>
        </div>
    </div>
    
</div>
</body>
</html>

and the python code as

template_path = 'template1.html'
template = get_template(template_path)

html = template.render({})

css_file = 'styles.css'

page_css = CSS(
    string='''
    @page {
        size: A4;
        margin: 1cm;
    }'''
)
stylesheets = [page_css]

css = CSS(filename=css_file)
stylesheets.append(css)

pdf_file = HTML(string=html).write_pdf(
    stylesheets=stylesheets, optimize_images=True, jpeg_quality=60, dpi=150
)
response = HttpResponse(pdf_file, content_type='application/pdf')
response['Content-Disposition'] = 'filename="home_page.pdf"'
return response

I'm expecting it to look like the below screenshot

Screenshot 2024-05-25 at 11 48 41 PM

But the pdf rendered has too much space and space breaking. Event text overflowing on longer strings.

response_1_page-0001 (1)

Removing d-flex (display flex), solves a few of the issues.
@liZe
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liZe commented May 27, 2024

Hi!

Thanks for your report.

Flex support in WeasyPrint is know to be quite bad in many cases, there are many open issues about that 😒. We want to rewrite the whole Flex module, but it would require a lot of time / money that we didn’t find yet, unfortunately. We’re currently quite busy on other topics (including Grid layout 🚀, which is much more solid that Flex), but we hope that we’ll find the resources to solve all these dirty Flex bugs in the future.

@liZe liZe added the bug Existing features not working as expected label May 27, 2024
@liZe liZe mentioned this issue May 27, 2024
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@liZe @anuj9196