Module: Vapir::Firefox::FirefoxClassAndInstanceMethods
- Included in:
- Vapir::Firefox, Vapir::Firefox
- Defined in:
- lib/vapir-firefox/browser.rb
Instance Method Summary collapse
-
#current_os ⇒ Object
returns a symbol representing the platform we’re currently running on - currently implemented platforms are :windows, :macosx, and :linux.
-
#pid ⇒ Object
returns the pid of the currently-attached Firefox process.
-
#process_running?(pid) ⇒ Boolean
attempts to determine whether the given process is still running.
-
#quit_browser(options = {}) ⇒ Object
quits the browser.
-
#wait_for_process_exit(pid) ⇒ Object
waits until the Firefox process with the given pid has exited.
Instance Method Details
#current_os ⇒ Object
returns a symbol representing the platform we’re currently running on - currently implemented platforms are :windows, :macosx, and :linux. raises NotImplementedError if the current platform isn’t one of those.
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# File 'lib/vapir-firefox/browser.rb', line 554 def current_os @current_os ||= begin platform= if RUBY_PLATFORM =~ /java/ require 'java' java.lang.System.getProperty("os.name") else RUBY_PLATFORM end case platform when /mswin|windows|mingw32/i :windows when /darwin|mac os/i :macosx when /linux/i :linux else raise NotImplementedError, "Unidentified platform #{platform}" end end end |
#pid ⇒ Object
returns the pid of the currently-attached Firefox process.
This only works on Firefox >= 3.6, on platforms supported (see #current_os), and raises NotImplementedError if it can’t get the pid.
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# File 'lib/vapir-firefox/browser.rb', line 481 def pid begin begin ctypes = jssh_socket.Components.utils.import("resource://gre/modules/ctypes.jsm").ctypes rescue JsshJavascriptError raise NotImplementedError, "Firefox 3.6 or greater is required for this method.\n\nOriginal error from firefox: #{$!.class}: #{$!.}", $!.backtrace end lib, pidfunction, abi = *case current_os when :macosx ["libc.dylib", 'getpid', ctypes.default_abi] when :linux ["libc.so.6", 'getpid', ctypes.default_abi] when :windows ['kernel32', 'GetCurrentProcessId', ctypes.stdcall_abi] else raise NotImplementedError, "don't know how to get pid for #{current_os}" end getpid = ctypes.open(lib).declare(pidfunction, abi, ctypes.int32_t) getpid.call() end end |
#process_running?(pid) ⇒ Boolean
attempts to determine whether the given process is still running. will raise NotImplementedError if it can’t determine this.
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# File 'lib/vapir-firefox/browser.rb', line 505 def process_running?(pid) case current_os when :windows kernel32 = Vapir::Firefox.instance_eval do # define this on the class for reuse @kernel32 ||= begin require 'ffi' kernel32 = Module.new kernel32.send :extend, FFI::Library kernel32.ffi_lib 'kernel32' kernel32.ffi_convention :stdcall kernel32.attach_function :OpenProcess, [:ulong, :char, :ulong], :pointer kernel32.attach_function :GetExitCodeProcess, [:pointer, :pointer], :char kernel32.const_set('PROCESS_QUERY_INFORMATION', 0x0400) kernel32.const_set('STILL_ACTIVE', 259) kernel32 end end process_handle = kernel32.OpenProcess(kernel32::PROCESS_QUERY_INFORMATION, 0, pid) exit_code=FFI::MemoryPointer.new(:ulong) result = kernel32.GetExitCodeProcess(process_handle, exit_code) if result == 0 raise "GetExitCodeProcess failed" end return exit_code.get_ulong(0)==kernel32::STILL_ACTIVE when :linux, :macosx `ps -p #{pid}` $? == 0 else raise NotImplementedError end end |
#quit_browser(options = {}) ⇒ Object
quits the browser.
quit_browser(:force => true) will force the browser to quit.
if there is no existing connection to JSSH, this will attempt to create one. If that fails, JsshUnableToStart will be raised.
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# File 'lib/vapir-firefox/browser.rb', line 448 def quit_browser(={}) jssh_socket(:reset_if_dead => true).assert_socket =(, :force => false) pid = @pid || begin self.pid rescue NotImplementedError nil end # from https://developer.mozilla.org/en/How_to_Quit_a_XUL_Application appStartup= jssh_socket.Components.classes['@mozilla.org/toolkit/app-startup;1'].getService(jssh_socket.Components.interfaces.nsIAppStartup) quitSeverity = [:force] ? jssh_socket.Components.interfaces.nsIAppStartup.eForceQuit : jssh_socket.Components.interfaces.nsIAppStartup.eAttemptQuit begin appStartup.quit(quitSeverity) ::Waiter.try_for(8, :exception => Exception::WindowFailedToCloseException.new("The browser did not quit")) do jssh_socket.assert_socket # this should error, going up past the waiter to the rescue block above false end rescue JsshConnectionError Vapir::Firefox.uninitialize_jssh_socket end wait_for_process_exit(pid) @browser_window_object=@browser_object=@document_object=@content_window_object=@body_object=nil nil end |
#wait_for_process_exit(pid) ⇒ Object
waits until the Firefox process with the given pid has exited.
if no pid is given, waits the configured amount of time until it is safe to assume the pfirefox process has exited.
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# File 'lib/vapir-firefox/browser.rb', line 541 def wait_for_process_exit(pid) if pid ::Waiter.try_for(16, :exception => Exception::WindowFailedToCloseException.new("The browser did not quit")) do !process_running?(pid) end else sleep config.firefox_quit_sleep_time end end |