Blank WebBrowserComponent


#1

Here’s a picture of my web browser component. It’s supposed to be showing google. The red is just to demonstrate I’ve not done anything stupid with the parent component. So what am I doing wrong this morning…?

And here’s my source:

class SaltHelpPanel : public Component
{
public:
	SaltHelpPanel()
	{
		setOpaque(true);
		Component::setName("HELP BROWSER");
		addAndMakeVisible(browser);
	}

	void resized() override
	{
		browser.setBounds(getLocalBounds().reduced(10));
	}

	void paint(Graphics & g) override
	{
		g.fillAll(Colours::red);
	}

	class Browser : public WebBrowserComponent, Timer
	{
	public:
		Browser()
			: WebBrowserComponent(false)
		{
			startTimer(8000);
			goToURL("http://www.google.com");
		}

		void timerCallback() override
		{
			goToURL("http://www.google.com");
		}

	};


	Browser browser;

};

#2

Okay - so if I add it directly to a top level window it displays, e.g.

class SaltHelpPanel : public Component
{
public:
	SaltHelpPanel()
	{
		setOpaque(true);
		Component::setName("HELP BROWSER");
		auto window = new ResizableWindow("HELP", true);
		window->setVisible(true);
		auto windowBrowser = new Browser();
		windowBrowser->setSize(400, 400);
		window->setContentOwned(windowBrowser, true);
		//addAndMakeVisible(browser);
	}

#3

Which OS?  


#4

Windoze


#5

I can’t seem to re-produce your problem. See this code here:

/*
  ==============================================================================

    This file was auto-generated!

    It contains the basic startup code for a Juce application.

  ==============================================================================
*/

#include "../JuceLibraryCode/JuceHeader.h"

//==============================================================================
class BrowserTestApplication  : public JUCEApplication
{
public:
    //==============================================================================
    BrowserTestApplication() {}

    const String getApplicationName() override       { return ProjectInfo::projectName; }
    const String getApplicationVersion() override    { return ProjectInfo::versionString; }
    bool moreThanOneInstanceAllowed() override       { return true; }

    //==============================================================================
    void initialise (const String&) override
    {
        // This method is where you should put your application's initialisation code..

        mainWindow = new MainWindow (getApplicationName());
    }

    void shutdown() override
    {
        // Add your application's shutdown code here..

        mainWindow = nullptr; // (deletes our window)
    }

    //==============================================================================
    void systemRequestedQuit() override
    {
        // This is called when the app is being asked to quit: you can ignore this
        // request and let the app carry on running, or call quit() to allow the app to close.
        quit();
    }

    void anotherInstanceStarted (const String&) override
    {
        // When another instance of the app is launched while this one is running,
        // this method is invoked, and the commandLine parameter tells you what
        // the other instance's command-line arguments were.
    }

    //==============================================================================
    /*
        This class implements the desktop window that contains an instance of
        our MainContentComponent class.
    */
    class MainWindow    : public DocumentWindow
    {
    private:
        class BrowserComponent : public Component
        {
        public:
            BrowserComponent()
            {
                setOpaque (true);
                addAndMakeVisible (wb);
                setSize (800, 600);

                wb.goToURL ("http://opensource.perlig.de/tdi/examples/html5form.html");
            }

            void paint (Graphics& g) override
            {
                g.fillAll (Colours::white);
            }

            void resized() override
            {
                wb.setBounds (getLocalBounds());
            }

        private:
            WebBrowserComponent wb;
        };

    public:
        MainWindow (String name)  : DocumentWindow (name,
                                                    Desktop::getInstance().getDefaultLookAndFeel()
                                                                          .findColour (ResizableWindow::backgroundColourId),
                                                    DocumentWindow::allButtons)
        {
            setUsingNativeTitleBar (true);
            setContentOwned (new BrowserComponent(), true);

            centreWithSize (getWidth(), getHeight());
            setVisible (true);
        }

        void closeButtonPressed() override
        {
            // This is called when the user tries to close this window. Here, we'll just
            // ask the app to quit when this happens, but you can change this to do
            // whatever you need.
            JUCEApplication::getInstance()->systemRequestedQuit();
        }

        /* Note: Be careful if you override any DocumentWindow methods - the base
           class uses a lot of them, so by overriding you might break its functionality.
           It's best to do all your work in your content component instead, but if
           you really have to override any DocumentWindow methods, make sure your
           subclass also calls the superclass's method.
        */

    private:
        JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (MainWindow)
    };

private:
    ScopedPointer<MainWindow> mainWindow;
};

//==============================================================================
// This macro generates the main() routine that launches the app.
START_JUCE_APPLICATION (BrowserTestApplication)

#6

Okay - so the browser that doesn’t display is embedded in this:

I’ll do you a full example later…