Thanks Andre for the detailed response and HTTPD library steer - that’s new to
me so I shall review with interest. :-)
I’m not in control of the pages, so that may be more useful than my first
experiments - which were to download the page content into LC, add some markup
and load the HTML text into the browser widget as a local ‘offline’ page.
Best,
Keith
> On 6 Nov 2018, at 10:38, Andre Alves Garzia via use-livecode
> <use-livecode@lists.runrev.com> wrote:
>
> Keith,
>
> If you're in control of the HTML used in the widget, then I'd advise you to
> build functions inside the HTML and just call them from LC instead of
> executing script directly, such as:
>
> ---- in the html ----
>
> <html>
>
> <head>
>
> ...
>
> <script>
>
> function paintItRed() {
>
> document.body.style.backgroundColor = "red";
>
> }
>
> </script>
>
> </head>
>
> <body>
>
> ...
>
> </body>
>
> </html>
>
> -------------------
>
>
> Then in the LC part you can do something like:
>
>
> do "paintItRed()" in widget "Browser"
>
>
> Which is more readable. Also, the body of the function inside the HTML can be
> as complex as you want. Now, if you're not in control of the HTML, I'd opt
> for some out-of-the-box strategy where you have the LC HTTPD library serving
> the JS content and then use the LC "do .. in widget" form to add a new
> <script> tag with the "src" attribute pointing to the HTTPD library server,
> the script would load and execute in the context of the loaded page. This
> should only be done after the page is loaded though or your script risks
> executing before the HTML is complete.
>
> Be aware that you can use the "do in widget" form with complex scripts, but
> I'd rather use the form above which keeps the JS and LC separate which is
> more of a personal preference than a technical reason to be honest.
>
> om om
>
> andre
>
> On 11/6/2018 9:10 AM, Keith Clarke via use-livecode wrote:
>> Folks,
>> I’ve found a few examples of simple inline script injection to the browser
>> widget, such as do "document.body.style.background = ‘red';" in widget
>> "Browser”
>>
>> Is it possible to inject a multi-line javascript function - with variables
>> definition, loops, etc - in this fashion or would the function need to be
>> injected into the page within the browser as markup and then called from a
>> one-line script from LiveCode?
>>
>> Thanks & regards,
>> Keith
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