snapcraft.yaml

name: qt5-application
version: "2"
summary: Qt5 Application Example
description: A simple text editor
grade: stable
confinement: strict
base: core18
icon: snap/gui/qt5-application.png

apps:
  qt5-application:
    environment:
      # Use GTK3 cursor theme, icon theme and open/save file dialogs.
      QT_QPA_PLATFORMTHEME: gtk3    
    command: desktop-launch application
    plugs: [unity7, home]

parts:
  application:
    source: src/
    plugin: qmake
    qt-version: qt5
    after: [desktop-qt5]

  # This part installs the qt5 dependencies and the `desktop-launch` script
  # which initialises desktop features such as fonts, themes and the XDG
  # environment.
  # 
  # It is copied straight from the snapcraft desktop helpers project. Please
  # periodically check the source for updates and copy the changes.
  #    https://github.com/ubuntu/snapcraft-desktop-helpers/blob/master/snapcraft.yaml
  # 
  desktop-qt5:
    source: https://github.com/ubuntu/snapcraft-desktop-helpers.git
    source-subdir: qt
    plugin: make
    make-parameters: ["FLAVOR=qt5"]
    build-packages:
      - build-essential
      - qtbase5-dev
      - dpkg-dev
    stage-packages:
      - libxkbcommon0
      - ttf-ubuntu-font-family
      - dmz-cursor-theme
      - light-themes
      - adwaita-icon-theme
      - gnome-themes-standard
      - shared-mime-info
      - libqt5gui5
      - libgdk-pixbuf2.0-0
      - libqt5svg5 # for loading icon themes which are svg
      - try: [appmenu-qt5] # not available on core18
      - locales-all
      - xdg-user-dirs
      - fcitx-frontend-qt5

  qt5-gtk-platform:
    plugin: nil
    stage-packages:
      - qt5-gtk-platformtheme

plugs:
  # Support for common GTK themes
  # https://forum.snapcraft.io/t/how-to-use-the-system-gtk-theme-via-the-gtk-common-themes-snap/6235
  gsettings:
  gtk-3-themes:
    interface: content
    target: $SNAP/data-dir/themes
    default-provider: gtk-common-themes
  icon-themes:
    interface: content
    target: $SNAP/data-dir/icons
    default-provider: gtk-common-themes
  sound-themes:
    interface: content
    target: $SNAP/data-dir/sounds
    default-provider: gtk-common-themes