Launcher: first refactoring pass

Modules/Launcher/Plugins/ApplicationsPlugin.qml

@@ -0,0 +1,95 @@
+import QtQuick
+import Quickshell
+import Quickshell.Io
+import qs.Commons
+import qs.Services
+import "../../../Helpers/FuzzySort.js" as Fuzzysort
+
+QtObject {
+  property var launcher: null
+  property string name: "Applications"
+  property bool handleSearch: true
+  property var entries: []
+
+  function init() {
+    loadApplications()
+  }
+
+  function onOpened() {
+    // Refresh apps when launcher opens
+    loadApplications()
+  }
+
+  function loadApplications() {
+    if (typeof DesktopEntries === 'undefined') {
+      Logger.warn("ApplicationsPlugin", "DesktopEntries service not available")
+      return
+    }
+
+    const allApps = DesktopEntries.applications.values || []
+    entries = allApps.filter(app => app && !app.noDisplay)
+    Logger.log("ApplicationsPlugin", `Loaded ${entries.length} applications`)
+  }
+
+  function getResults(query) {
+    if (!entries || entries.length === 0)
+      return []
+
+    if (!query || query.trim() === "") {
+      // Return all apps alphabetically
+      return entries.sort((a, b) => a.name.toLowerCase().localeCompare(b.name.toLowerCase())).slice(
+            0, 50) // Limit to 50 for performance
+      .map(app => createResultEntry(app))
+    }
+
+    // Use fuzzy search if available, fallback to simple search
+    if (typeof Fuzzysort !== 'undefined') {
+      const fuzzyResults = Fuzzysort.go(query, entries, {
+                                          "keys": ["name", "comment", "genericName"],
+                                          "threshold": -1000,
+                                          "limit": 20
+                                        })
+
+      return fuzzyResults.map(result => createResultEntry(result.obj))
+    } else {
+      // Fallback to simple search
+      const searchTerm = query.toLowerCase()
+      return entries.filter(app => {
+                              const name = (app.name || "").toLowerCase()
+                              const comment = (app.comment || "").toLowerCase()
+                              const generic = (app.genericName || "").toLowerCase()
+                              return name.includes(searchTerm) || comment.includes(searchTerm) || generic.includes(
+                                searchTerm)
+                            }).sort((a, b) => {
+                                      // Prioritize name matches
+                                      const aName = a.name.toLowerCase()
+                                      const bName = b.name.toLowerCase()
+                                      const aStarts = aName.startsWith(searchTerm)
+                                      const bStarts = bName.startsWith(searchTerm)
+                                      if (aStarts && !bStarts)
+                                      return -1
+                                      if (!aStarts && bStarts)
+                                      return 1
+                                      return aName.localeCompare(bName)
+                                    }).slice(0, 20).map(app => createResultEntry(app))
+    }
+  }
+
+  function createResultEntry(app) {
+    return {
+      "name": app.name || "Unknown",
+      "description": app.genericName || app.comment || "",
+      "icon": app.icon || "application-x-executable",
+      "onActivate": function () {
+        Logger.log("ApplicationsPlugin", `Launching: ${app.name}`)
+        if (app.execute) {
+          app.execute()
+        } else if (app.exec) {
+          // Fallback to manual execution
+          Process.execute(app.exec)
+        }
+        launcher.close()
+      }
+    }
+  }
+}

Modules/Launcher/Plugins/CalculatorPlugin.qml

@@ -0,0 +1,105 @@
+import QtQuick
+import qs.Services
+import "../../../Helpers/AdvancedMath.js" as AdvancedMath
+
+QtObject {
+  property var launcher: null
+  property string name: "Calculator"
+
+  function handleCommand(query) {
+    // Handle >calc command or direct math expressions after >
+    return query.startsWith(">calc") || (query.startsWith(">") && query.length > 1 && isMathExpression(
+                                           query.substring(1)))
+  }
+
+  function commands() {
+    return [{
+              "name": ">calc",
+              "description": "Calculator - evaluate mathematical expressions",
+              "icon": "accessories-calculator",
+              "onActivate": function () {
+                launcher.setSearchText(">calc ")
+              }
+            }]
+  }
+
+  function getResults(query) {
+    let expression = ""
+
+    if (query.startsWith(">calc")) {
+      expression = query.substring(5).trim()
+    } else if (query.startsWith(">")) {
+      expression = query.substring(1).trim()
+    } else {
+      return []
+    }
+
+    if (!expression) {
+      return [{
+                "name": "Calculator",
+                "description": "Enter a mathematical expression",
+                "icon": "accessories-calculator",
+                "onActivate": function () {}
+              }]
+    }
+
+    try {
+      let result = AdvancedMath.evaluate(expression.trim())
+
+      return [{
+                "name": AdvancedMath.formatResult(result),
+                "description": `${expression} = ${result}`,
+                "icon": "accessories-calculator",
+                "onActivate": function () {
+                  // Copy result to clipboard if service available
+                  // if (typeof ClipboardService !== 'undefined') {
+                  //   ClipboardService.copy(result.toString())
+                  // }
+                  launcher.close()
+                }
+              }]
+    } catch (error) {
+      return [{
+                "name": "Error",
+                "description": error.message || "Invalid expression",
+                "icon": "dialog-error",
+                "onActivate": function () {}
+              }]
+    }
+  }
+
+  function evaluateExpression(expr) {
+    // Sanitize input - only allow safe characters
+    const sanitized = expr.replace(/[^0-9\+\-\*\/\(\)\.\s\%]/g, '')
+    if (sanitized !== expr) {
+      throw new Error("Invalid characters in expression")
+    }
+
+    // Don't allow empty expressions
+    if (!sanitized.trim()) {
+      throw new Error("Empty expression")
+    }
+
+    try {
+      // Use Function constructor for safe evaluation
+      // This is safer than eval() but still evaluate math
+      const result = Function('"use strict"; return (' + sanitized + ')')()
+
+      // Check for valid result
+      if (!isFinite(result)) {
+        throw new Error("Result is not a finite number")
+      }
+
+      // Round to reasonable precision to avoid floating point issues
+      return Math.round(result * 1000000000) / 1000000000
+    } catch (e) {
+      throw new Error("Invalid mathematical expression")
+    }
+  }
+
+  function isMathExpression(expr) {
+    // Check if string looks like a math expression
+    // Allow digits, operators, parentheses, decimal points, and whitespace
+    return /^[\d\s\+\-\*\/\(\)\.\%]+$/.test(expr)
+  }
+  }