Zulip Desktop

The Zulip desktop app is a C++ application written with the Qt toolkit. It is a lightweight wrapper around a Webkit web view: it loads the zulip webapp as a single page full-screen webpage. The desktop app provides some native integrations: tray icon and Dock support, notifications, and more.

Dependencies

• cmake >= 2.10
• Qt4 OR Qt5
• qjson

Linux

• Qt4 with Phonon

OS X

• Sparkle.framework
• Growl.framework (both should be installed to /Library/Frameworks)

Windows

• NSIS

Installation

mkdir build
cd build
cmake ..
make

To build with Qt5, pass -DBUILD_WITH_QT5=On to cmake.

Architecture

Though the desktop app is written in C++ using the Qt toolkit, the Mac version of the desktop app does not use the QtWebkit included with Qt: it instead uses a native Cocoa WebView that is embedded inside the main Qt app with a QMacCocoaViewContainer bridge.

The HWebView class provides an abstraction around the platforms-specific pieces that comprise this web view: on Mac, HWebView_mac.mm is the Objective-C++ file that integrate with the native Cocoa webview. On Windows and Linux, HWebView.cpp uses QtWebkit to render the display.

Building releases

OS X

On OS X we can generate a packaged .dmg with a bundled Zulip Desktop.app.

Run ./admin/mac/make_package.sh CODESIGN_NAME ZULIP_VERSION where:

• CODESIGN_NAME is the name of the developer ID that should be used to codesign the resulting .app
• ZULIP_VERSION is the version string you want for this build of Zulip.

Sparkle

Our OS X app uses Sparkle as an auto-updating mechanism. Sparkle is configured as an RSS feed on our server that the desktop app checks daily---if there is a new release in the RSS feed, Sparkle will prompt the user to upgrade, and if the user confirms it will automatically download, install, and restart the Zulip app.

The sparkle RSS feeds and Changelogs are configured in the sparkle puppet files in the main zulip server repository. The make-package.sh build script above will also output the Sparkle codesign signature that should be included in the Sparkle RSS file.

Windows

This requires a MSVC build toolchain and the Zulip dependencies built with the same version of MSVC. The windows build requires Qt5.

Linux

See your favorite distribution package management system for how to distribute a binary Zulip package on linux.

Debugging

Linux / Windows

It is possible to attach a web inspector to the QtWebkit page that is used in the Linux/Windows desktop app. Here are the steps:

1. Run zulip with zulip --debug
2. Download and extract http://files.lfranchi.com/QtTestBrowser.tar.bz2 (the version of webkit used to connect to the remote developer tools must be the same as the version of webkit in zulip)
3. In the extracted folder, run qmake && make
4. Run the webkit browser with bin/QtTestBrowser
5. Navigate to localhost:8888 in your test browser

Mac

The Cocoa WebView in the Mac app natively supports opening the Safari web inspector.

1. Run Zulip.app/Contents/MacOS/Zulip --debug
2. Right-click on an element on the page and select "Inspect Element"