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skel/.local/share/gnome-shell/extensions/unite@hardpixel.eu/panel.js

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+const GObject   = imports.gi.GObject
+const St        = imports.gi.St
+const Clutter   = imports.gi.Clutter
+const Main      = imports.ui.main
+const PanelMenu = imports.ui.panelMenu
+
+var DesktopLabel = GObject.registerClass(
+  class UniteDesktopLabel extends PanelMenu.Button {
+    _init(params = { text: 'Desktop' }) {
+      this.params  = params
+      this.appMenu = Main.panel.statusArea.appMenu
+
+      super._init(0.0, null, true)
+
+      this._label = new St.Label({ y_align: Clutter.ActorAlign.CENTER })
+      this.add_actor(this._label)
+
+      this.reactive = false
+      this.label_actor = this._label
+
+      this.setText(params.text)
+    }
+
+    setText(text) {
+      this._label.set_text(text)
+    }
+
+    setVisible(visible) {
+      this.container.visible = visible
+      this.appMenu.container.visible = !visible
+    }
+  }
+)
+
+var TrayIndicator = GObject.registerClass(
+  class UniteTrayIndicator extends PanelMenu.Button {
+    _init(params = { size: 20 }) {
+      this._icons = []
+      this.params = params
+
+      super._init(0.0, null, true)
+
+      this._indicators = new St.BoxLayout({ style_class: 'panel-status-indicators-box' })
+      this.add_child(this._indicators)
+
+      this._sync()
+    }
+
+    _sync() {
+      this.visible = this._icons.length
+    }
+
+    addIcon(icon) {
+      this._icons.push(icon)
+
+      const mask = St.ButtonMask.ONE | St.ButtonMask.TWO | St.ButtonMask.THREE
+      const ibtn = new St.Button({ child: icon, button_mask: mask })
+
+      this._indicators.add_child(ibtn)
+
+      icon.connect('destroy', () => { ibtn.destroy() })
+      ibtn.connect('button-release-event', (actor, event) => { icon.click(event) })
+
+      icon.set_reactive(true)
+      icon.set_size(this.params.size, this.params.size)
+
+      this._sync()
+    }
+
+    removeIcon(icon) {
+      const actor = icon.get_parent() || icon
+      actor.destroy()
+
+      const index = this._icons.indexOf(icon)
+      this._icons.splice(index, 1)
+
+      this._sync()
+    }
+
+    forEach(callback) {
+      this._icons.forEach(icon => { callback.call(null, icon) })
+    }
+  }
+)
+
+var WindowControls = GObject.registerClass(
+  class UniteWindowControls extends PanelMenu.Button {
+    _init() {
+      super._init(0.0, null, true)
+
+      this._controls = new St.BoxLayout({ style_class: 'window-controls-box' })
+      this.add_child(this._controls)
+
+      this.add_style_class_name('window-controls')
+    }
+
+    _addButton(action, callback) {
+      const bin = new St.Bin({ style_class: 'icon' })
+      const btn = new St.Button({ track_hover: true })
+
+      btn._windowAction = action
+
+      btn.add_style_class_name(`window-button ${action}`)
+      btn.add_actor(bin)
+
+      btn.connect('clicked', (actor, event) => {
+        callback.call(null, actor, event)
+      })
+
+      this._controls.add_child(btn)
+    }
+
+    addButtons(buttons, callback) {
+      buttons.forEach(action => { this._addButton(action, callback) })
+    }
+
+    setVisible(visible) {
+      this.container.visible = visible
+    }
+  }
+)