Projucer: add feature download & install live-build engine (including checks for supported OS versions)

extras/Projucer/Source/Project/jucer_ProjectContentComponent.cpp

@@ -27,6 +27,7 @@
 #include "jucer_Module.h"
 #include "../Application/jucer_MainWindow.h"
 #include "../Application/jucer_Application.h"
+#include "../Application/jucer_DownloadCompileEngineThread.h"
 #include "../Code Editor/jucer_SourceCodeEditor.h"
 #include "../Utility/jucer_FilePathPropertyComponent.h"
 #include "jucer_TreeItemTypes.h"
@@ -330,6 +331,7 @@ void ProjectContentComponent::rebuildProjectTabs()
     resized();
 }
 
+
 //==============================================================================
 struct BuildTabComponent  : public ConcertinaPanel
 {
@@ -355,7 +357,8 @@ struct ProjucerDisabledComp   : public Component,
                                 private Button::Listener
 {
     ProjucerDisabledComp (String message, bool loggedIn, bool showSubscribeButton,
-                          bool showSignInButton, bool showSwitchAccountButton)
+                          bool showSignInButton, bool showSwitchAccountButton,
+                          bool showDownloadButton)
               : isLoggedIn (loggedIn)
     {
         infoLabel.setColour (Label::textColourId, findColour (mainBackgroundColourId).contrasting (0.7f));
@@ -383,6 +386,13 @@ struct ProjucerDisabledComp   : public Component,
             addAndMakeVisible (*switchAccountButton);
             switchAccountButton->addListener (this);
         }
+
+        if (showDownloadButton)
+        {
+            downloadButton = new TextButton (String ("Download live-build engine"));
+            addAndMakeVisible (*downloadButton);
+            downloadButton->addListener (this);
+        }
     }
 
     void resized() override
@@ -417,6 +427,13 @@ struct ProjucerDisabledComp   : public Component,
         {
             switchAccountButton->setSize (buttonWidth, buttonHeight);
             switchAccountButton->setCentrePosition (buttonCenterX, buttonCenterY);
+            buttonCenterY += itemDistance + buttonHeight;
+        }
+
+        if (downloadButton.get() != nullptr)
+        {
+            downloadButton->setSize (buttonWidth, buttonHeight);
+            downloadButton->setCentrePosition (buttonCenterX, buttonCenterY);
         }
     }
 
@@ -434,6 +451,26 @@ struct ProjucerDisabledComp   : public Component,
         {
             ProjucerApplication::getApp().showLoginForm();
         }
+        else if (btn == downloadButton.get())
+        {
+            if (DownloadCompileEngineThread::downloadAndInstall())
+            {
+                if (! ProjucerLicenses::getInstance()->retryLoadDll())
+                {
+                    AlertWindow::showMessageBox(AlertWindow::WarningIcon,
+                                                "Download and install",
+                                                "Loading the live-build engine failed");
+                    return;
+                }
+
+                // async!
+                ProjucerApplication::getApp().showLoginForm();
+
+                // if sign in successful project tabs update, otherwise they were not
+                auto parent = findParentComponentOfClass<ProjectContentComponent>();
+                parent->rebuildProjectTabs();
+            }
+        }
     }
 
     bool isLoggedIn;
@@ -443,6 +480,7 @@ private:
     ScopedPointer<TextButton> subscribeButton;
     ScopedPointer<TextButton> signInButton;
     ScopedPointer<TextButton> switchAccountButton;
+    ScopedPointer<TextButton> downloadButton;
 };
 
 struct EnableBuildComp   : public Component
@@ -476,11 +514,6 @@ struct EnableBuildComp   : public Component
 //==============================================================================
 Component* ProjectContentComponent::createBuildTab (CompileEngineChildProcess* child)
 {
-   #if JUCE_LINUX
-    ignoreUnused (child);
-    return new ProjucerDisabledComp ("Linux support is still under development - "
-                                     "please check for updates at www.juce.com!", false, false, false, false);
-   #else
     if (child != nullptr)
     {
         child->crashHandler = [this] (const String& m) { this->handleCrash (m); };
@@ -489,31 +522,61 @@ Component* ProjectContentComponent::createBuildTab (CompileEngineChildProcess* c
     }
 
     jassert (project != nullptr);
+
+    const auto osType = SystemStats::getOperatingSystemType();
+    const bool isMac = (osType & SystemStats::MacOSX) != 0;
+    const bool isWin = (osType & SystemStats::Windows) != 0;
+    const bool isLinux = (osType & SystemStats::Linux) != 0;
+
+    if (! isMac && ! isWin && ! isLinux)
+        return createDisabledBuildTabInfoOnly (
+            "Live-build features are not supported on your system.\n\n"
+            "Please check supported platforms at www.juce.com!");
+
+    if (isLinux)
+        return createDisabledBuildTabInfoOnly (
+            "Live-build features for Linux are under development.\n\n"
+            "Please check for updates at www.juce.com!");
+
+    if (isMac)
+        if (osType < SystemStats::MacOSX_10_9)
+            return createDisabledBuildTabInfoOnly (
+                "Live-build features are available only on MacOSX 10.9 or higher.");
+
+    if (isWin)
+        if (! SystemStats::isOperatingSystem64Bit() || osType < SystemStats::Windows8_0)
+            return createDisabledBuildTabInfoOnly (
+                "Live-build features are available only on 64-Bit Windows 8 or higher.");
+
     const auto& unlockStatus = *ProjucerLicenses::getInstance();
 
-    if (unlockStatus.hasLiveCodingLicence())
-    {
-        jassert (unlockStatus.isLoggedIn());
-        jassert (unlockStatus.isDLLPresent());
-        return new EnableBuildComp();
-    }
+    if (! unlockStatus.hasLiveCodingLicence())
+        return createDisabledBuildTabSubscribe(unlockStatus.isLoggedIn(),
+                                               unlockStatus.isDLLPresent());
 
-    return createDisabledBuildTab(unlockStatus.isLoggedIn(),
-                                  unlockStatus.isDLLPresent());
-   #endif
+    jassert (unlockStatus.isLoggedIn());
+    jassert (unlockStatus.isDLLPresent());
+    return new EnableBuildComp();
 };
 
-//==============================================================================
-Component* ProjectContentComponent::createDisabledBuildTab(bool loggedIn, bool dllPresent) {
+Component* ProjectContentComponent::createDisabledBuildTabSubscribe(bool loggedIn, bool dllPresent)
+{
     bool showSubscribeButton = true;
     bool showSignInButton = dllPresent && ! loggedIn;
     bool showSwitchAccountButton = dllPresent && loggedIn;
+    bool showDownloadButton = ! dllPresent;
 
     return new ProjucerDisabledComp (
         "Subscribe to JUCE Pro or Indie to use the Projucer's live-build features:",
-        loggedIn, showSubscribeButton, showSignInButton, showSwitchAccountButton);
+        loggedIn, showSubscribeButton, showSignInButton, showSwitchAccountButton, showDownloadButton);
 }
 
+Component* ProjectContentComponent::createDisabledBuildTabInfoOnly(const char* message)
+{
+    return new ProjucerDisabledComp (message, false, false, false, false, false);
+}
+
+//==============================================================================
 BuildTabComponent* findBuildTab (const TabbedComponent& tabs)
 {
     return dynamic_cast<BuildTabComponent*> (tabs.getTabContentComponent (2));
@@ -1527,7 +1590,7 @@ void ProjectContentComponent::handleMissingSystemHeaders()
     createProjectTabs();
 
     bool isLoggedIn = ProjucerLicenses::getInstance()->isLoggedIn();
-    ProjucerDisabledComp* buildTab = new ProjucerDisabledComp (tabMessage, isLoggedIn, false, false, false);
+    ProjucerDisabledComp* buildTab = new ProjucerDisabledComp (tabMessage, isLoggedIn, false, false, false, false);
 
     treeViewTabs.addTab ("Build", Colours::transparentBlack, buildTab, true);
     showBuildTab();