Functions/GenXdev.Webbrowser/Set-BrowserVideoFullscreen.ps1

<##############################################################################
Part of PowerShell module : GenXdev.Webbrowser
Original cmdlet filename : Set-BrowserVideoFullscreen.ps1
Original author : René Vaessen / GenXdev
Version : 1.300.2025
################################################################################
Copyright (c) René Vaessen / GenXdev
 
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
 
    http://www.apache.org/licenses/LICENSE-2.0
 
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
################################################################################>

###############################################################################
<#
.SYNOPSIS
Maximizes the first video element found in the current browser tab.
 
.DESCRIPTION
Executes JavaScript code to locate and maximize the first video element on the
current webpage. The video is set to cover the entire viewport with maximum
z-index to ensure visibility. Page scrollbars are hidden for a clean fullscreen
experience.
 
.EXAMPLE
Set-BrowserVideoFullscreen
#>

function Set-BrowserVideoFullscreen {

    [CmdletBinding(SupportsShouldProcess)]
    [Alias('fsvideo')]
    param()

    begin {

        # prepare the javascript command that will handle video manipulation
        $script = @(
            "window.video = document.getElementsByTagName('video')[0];" +
            "video.setAttribute('style','position:fixed;left:0;top:0;bottom:0;" +
            "right:0;z-index:10000;width:100vw;height:100vh');" +
            'document.body.appendChild(video);' +
            "document.body.setAttribute('style', 'overflow:hidden');"
        ) -join ''

        Microsoft.PowerShell.Utility\Write-Verbose 'Prepared JavaScript code for video fullscreen manipulation'
    }


    process {

        # check if we should proceed with the operation
        if ($PSCmdlet.ShouldProcess('browser video', 'Set to fullscreen mode')) {

            Microsoft.PowerShell.Utility\Write-Verbose 'Executing JavaScript to maximize video element'
            GenXdev.Webbrowser\Invoke-WebbrowserEvaluation $script
        }
    }

    end {
    }
}