Add OSC 7 support for fish and pwsh shells

Co-authored-by: sawka <2722291+sawka@users.noreply.github.com>

Author: Copilot

pkg/util/shellutil/shellintegration/fish_wavefish.sh

@@ -7,4 +7,41 @@ wsh token "$WAVETERM_SWAPTOKEN" fish 2>/dev/null | source
 set -e WAVETERM_SWAPTOKEN
 
 # Load Wave completions
-wsh completion fish | source
+wsh completion fish | source
+
+# shell integration
+function _waveterm_si_blocked
+    # Check if we're in tmux or screen
+    test -n "$TMUX" -o -n "$STY" -o "$TERM" = "tmux" -o "$TERM" = "screen"
+end
+
+function _waveterm_si_urlencode
+    set -l str $argv[1]
+    # URL encode the path
+    # Escape % first
+    set str (string replace -a '%' '%25' -- $str)
+    # Common reserved characters in file paths
+    set str (string replace -a ' ' '%20' -- $str)
+    set str (string replace -a '#' '%23' -- $str)
+    set str (string replace -a '?' '%3F' -- $str)
+    set str (string replace -a '&' '%26' -- $str)
+    set str (string replace -a ';' '%3B' -- $str)
+    set str (string replace -a '+' '%2B' -- $str)
+    echo -n $str
+end
+
+function _waveterm_si_osc7
+    _waveterm_si_blocked; and return
+    set -l encoded_pwd (_waveterm_si_urlencode $PWD)
+    printf '\033]7;file://%s%s\007' $hostname $encoded_pwd
+end
+
+# Hook OSC 7 to prompt and directory changes
+function _waveterm_si_prompt --on-event fish_prompt
+    _waveterm_si_osc7
+end
+
+# Also update on directory change
+function _waveterm_si_chpwd --on-variable PWD
+    _waveterm_si_osc7
+end

pkg/util/shellutil/shellintegration/pwsh_wavepwsh.sh

@@ -10,4 +10,69 @@ Remove-Variable -Name waveterm_swaptoken_output
 Remove-Item Env:WAVETERM_SWAPTOKEN
 
 # Load Wave completions
-wsh completion powershell | Out-String | Invoke-Expression
+wsh completion powershell | Out-String | Invoke-Expression
+
+# shell integration
+function Global:_waveterm_si_blocked {
+    # Check if we're in tmux or screen
+    return ($env:TMUX -or $env:STY -or $env:TERM -like "tmux*" -or $env:TERM -like "screen*")
+}
+
+function Global:_waveterm_si_urlencode {
+    param([string]$str)
+    # URL encode the path
+    # Escape % first
+    $str = $str -replace '%', '%25'
+    # Common reserved characters in file paths
+    $str = $str -replace ' ', '%20'
+    $str = $str -replace '#', '%23'
+    $str = $str -replace '\?', '%3F'
+    $str = $str -replace '&', '%26'
+    $str = $str -replace ';', '%3B'
+    $str = $str -replace '\+', '%2B'
+    return $str
+}
+
+function Global:_waveterm_si_osc7 {
+    if (_waveterm_si_blocked) { return }
+    
+    $pwd_str = $PWD.Path
+    
+    # Convert Windows path to file:// URL format
+    # Replace backslashes with forward slashes
+    $pwd_str = $pwd_str -replace '\\', '/'
+    
+    # Ensure it starts with / for proper file:// URL format
+    # Windows paths like C:/... need to become /C:/...
+    if ($pwd_str -match '^[a-zA-Z]:') {
+        $pwd_str = '/' + $pwd_str
+    }
+    
+    $encoded_pwd = _waveterm_si_urlencode $pwd_str
+    $hostname = $env:COMPUTERNAME
+    if (-not $hostname) {
+        $hostname = hostname
+    }
+    
+    # OSC 7 - current directory
+    Write-Host -NoNewline "`e]7;file://$hostname$encoded_pwd`a"
+}
+
+# Hook OSC 7 to prompt
+function Global:_waveterm_si_prompt {
+    _waveterm_si_osc7
+}
+
+# Add the OSC 7 call to the prompt function
+if (Test-Path Function:\prompt) {
+    $global:_waveterm_original_prompt = $function:prompt
+    function Global:prompt {
+        _waveterm_si_prompt
+        & $global:_waveterm_original_prompt
+    }
+} else {
+    function Global:prompt {
+        _waveterm_si_prompt
+        "PS $($executionContext.SessionState.Path.CurrentLocation)$('>' * ($nestedPromptLevel + 1)) "
+    }
+}