text: /*
    ==============================================================================
  
     This file is part of the JUCE examples.
     Copyright (c) 2020 - Raw Material Software Limited
  
     The code included in this file is provided under the terms of the ISC license
     http://www.isc.org/downloads/software-support-policy/isc-license. Permission
     To use, copy, modify, and/or distribute this software for any purpose with or
     without fee is hereby granted provided that the above copyright notice and
     this permission notice appear in all copies.
  
     THE SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES,
     WHETHER EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR
     PURPOSE, ARE DISCLAIMED.
  
    ==============================================================================
  */
  
  /*******************************************************************************
   The block below describes the properties of this PIP. A PIP is a short snippet
   of code that can be read by the Projucer and used to generate a JUCE project.
  
   BEGIN_JUCE_PIP_METADATA
  
   name:             DialogsDemo
   version:          1.0.0
   vendor:           JUCE
   website:          http://juce.com
   description:      Displays different types of dialog windows.
  
   dependencies:     juce_core, juce_data_structures, juce_events, juce_graphics,
                     juce_gui_basics, juce_gui_extra
   exporters:        xcode_mac, vs2019, linux_make, androidstudio, xcode_iphone
  
   moduleFlags:      JUCE_STRICT_REFCOUNTEDPOINTER=1
  
   type:             Component
   mainClass:        DialogsDemo
  
   useLocalCopy:     1
  
   END_JUCE_PIP_METADATA
  
  *******************************************************************************/
  
  #pragma once
  
  #include "../Assets/DemoUtilities.h"
  
  //==============================================================================
  class DemoBackgroundThread  : public ThreadWithProgressWindow
  {
  public:
      DemoBackgroundThread()
          : ThreadWithProgressWindow ("busy doing some important things...", true, true)
      {
          setStatusMessage ("Getting ready...");
      }
  
      void run() override
      {
          setProgress (-1.0); // setting a value beyond the range 0 -> 1 will show a spinning bar..
          setStatusMessage ("Preparing to do some stuff...");
          wait (2000);
  
          int thingsToDo = 10;
  
          for (int i = 0; i < thingsToDo; ++i)
          {
              // must check this as often as possible, because this is
              // how we know if the user's pressed 'cancel'
              if (threadShouldExit())
                  return;
  
              // this will update the progress bar on the dialog box
              setProgress (i / (double) thingsToDo);
  
              setStatusMessage (String (thingsToDo - i) + " things left to do...");
  
              wait (500);
          }
  
          setProgress (-1.0); // setting a value beyond the range 0 -> 1 will show a spinning bar..
          setStatusMessage ("Finishing off the last few bits and pieces!");
          wait (2000);
      }
  
      // This method gets called on the message thread once our thread has finished..
      void threadComplete (bool userPressedCancel) override
      {
          const String messageString (userPressedCancel ? "You pressed cancel!" : "Thread finished ok!");
  
          AlertWindow::showAsync (MessageBoxOptions()
                                    .withIconType (MessageBoxIconType::InfoIcon)
                                    .withTitle ("Progress window")
                                    .withMessage (messageString)
                                    .withButton ("OK"),
                                  nullptr);
  
          // ..and clean up by deleting our thread object..
          delete this;
      }
  };
  
  
  //==============================================================================
  class DialogsDemo  : public Component
  {
  public:
      enum DialogType
      {
          plainAlertWindow,
          warningAlertWindow,
          infoAlertWindow,
          questionAlertWindow,
          okCancelAlertWindow,
          extraComponentsAlertWindow,
          calloutBoxWindow,
          progressWindow,
          loadChooser,
          loadWithPreviewChooser,
          directoryChooser,
          saveChooser,
          shareText,
          shareFile,
          shareImage,
          numDialogs
      };
  
      DialogsDemo()
      {
          setOpaque (true);
  
          addAndMakeVisible (nativeButton);
          nativeButton.setButtonText ("Use Native Windows");
          nativeButton.onClick = [this] { getLookAndFeel().setUsingNativeAlertWindows (nativeButton.getToggleState()); };
  
          StringArray windowNames { "Plain Alert Window",
                                    "Alert Window With Warning Icon",
                                    "Alert Window With Info Icon",
                                    "Alert Window With Question Icon",
                                    "OK Cancel Alert Window",
                                    "Alert Window With Extra Components",
                                    "CalloutBox",
                                    "Thread With Progress Window",
                                    "'Load' File Browser",
                                    "'Load' File Browser With Image Preview",
                                    "'Choose Directory' File Browser",
                                    "'Save' File Browser",
                                    "Share Text",
                                    "Share Files",
                                    "Share Images" };
  
          // warn in case we add any windows
          jassert (windowNames.size() == numDialogs);
  
          for (auto windowName : windowNames)
          {
              auto* newButton = new TextButton();
  
              addAndMakeVisible (windowButtons.add (newButton));
              newButton->setButtonText (windowName);
  
              auto index = windowNames.indexOf (windowName);
              newButton->onClick = [this, index, newButton] { showWindow (*newButton, static_cast<DialogType> (index)); };
          }
  
          setSize (500, 500);
  
          RuntimePermissions::request (RuntimePermissions::readExternalStorage,
                                       [] (bool granted)
                                       {
                                           if (! granted)
                                               AlertWindow::showAsync (MessageBoxOptions()
                                                                         .withIconType (MessageBoxIconType::WarningIcon)
                                                                         .withTitle ("Permissions warning")
                                                                         .withMessage ("External storage access permission not granted, some files"
                                                                                       " may be inaccessible.")
                                                                         .withButton ("OK"),
                                                                       nullptr);
                                       });
      }
  
      //==============================================================================
      void paint (Graphics& g) override
      {
          g.fillAll (getUIColourIfAvailable (LookAndFeel_V4::ColourScheme::UIColour::windowBackground));
      }
  
      void resized() override
      {
          auto area = getLocalBounds().reduced (5, 15);
          Rectangle<int> topRow;
  
          for (auto* b : windowButtons)
          {
              auto index = windowButtons.indexOf (b);
  
              if (topRow.getWidth() < 10 || index == loadChooser)
                  topRow = area.removeFromTop (26);
  
              if (index == progressWindow)
                  area.removeFromTop (20);
  
              b->setBounds (topRow.removeFromLeft (area.getWidth() / 2).reduced (4, 2));
          }
  
          area.removeFromTop (15);
          nativeButton.setBounds (area.removeFromTop (24));
      }
  
  private:
      OwnedArray<TextButton> windowButtons;
      ToggleButton nativeButton;
  
      struct AlertBoxResultChosen
      {
          void operator() (int result) const noexcept
          {
              AlertWindow::showAsync (MessageBoxOptions()
                                        .withIconType (MessageBoxIconType::InfoIcon)
                                        .withTitle ("Alert Box")
                                        .withMessage ("Result code: " + String (result))
                                        .withButton ("OK"),
                                      nullptr);
          }
      };
  
      struct AsyncAlertBoxResultChosen
      {
          void operator() (int result) const noexcept
          {
              auto& aw = *demo.asyncAlertWindow;
  
              aw.exitModalState (result);
              aw.setVisible (false);
  
              if (result == 0)
              {
                  AlertBoxResultChosen{} (result);
                  return;
              }
  
              auto optionIndexChosen = aw.getComboBoxComponent ("option")->getSelectedItemIndex();
              auto text = aw.getTextEditorContents ("text");
  
              AlertWindow::showAsync (MessageBoxOptions()
                                        .withIconType (MessageBoxIconType::InfoIcon)
                                        .withTitle ("Alert Box")
                                        .withMessage ("Result code: " + String (result) + newLine
                                                      + "Option index chosen: " + String (optionIndexChosen) + newLine
                                                      + "Text: " + text)
                                        .withButton ("OK"),
                                      nullptr);
          }
  
          DialogsDemo& demo;
      };
  
      void showWindow (Component& button, DialogType type)
      {
          if (type >= plainAlertWindow && type <= questionAlertWindow)
          {
              MessageBoxIconType icon = MessageBoxIconType::NoIcon;
  
              if (type == warningAlertWindow)   icon = MessageBoxIconType::WarningIcon;
              if (type == infoAlertWindow)      icon = MessageBoxIconType::InfoIcon;
              if (type == questionAlertWindow)  icon = MessageBoxIconType::QuestionIcon;
  
              AlertWindow::showMessageBoxAsync (icon, "This is an AlertWindow",
                                                "And this is the AlertWindow's message. Blah blah blah blah blah blah blah blah blah blah blah blah blah.",
                                                "OK");
          }
          else if (type == okCancelAlertWindow)
          {
              AlertWindow::showOkCancelBox (MessageBoxIconType::QuestionIcon, "This is an ok/cancel AlertWindow",
                                            "And this is the AlertWindow's message. Blah blah blah blah blah blah blah blah blah blah blah blah blah.",
                                            {}, {}, {},
                                            ModalCallbackFunction::create (AlertBoxResultChosen{}));
          }
          else if (type == calloutBoxWindow)
          {
              auto colourSelector = std::make_unique<ColourSelector>();
  
              colourSelector->setName ("background");
              colourSelector->setCurrentColour (findColour (TextButton::buttonColourId));
              colourSelector->setColour (ColourSelector::backgroundColourId, Colours::transparentBlack);
              colourSelector->setSize (300, 400);
  
              CallOutBox::launchAsynchronously (std::move (colourSelector), button.getScreenBounds(), nullptr);
          }
          else if (type == extraComponentsAlertWindow)
          {
              asyncAlertWindow = std::make_unique<AlertWindow> ("AlertWindow demo..",
                                                                "This AlertWindow has a couple of extra components added to show how to add drop-down lists and text entry boxes.",
                                                                MessageBoxIconType::QuestionIcon);
  
              asyncAlertWindow->addTextEditor ("text", "enter some text here", "text field:");
              asyncAlertWindow->addComboBox ("option", { "option 1", "option 2", "option 3", "option 4" }, "some options");
              asyncAlertWindow->addButton ("OK",     1, KeyPress (KeyPress::returnKey, 0, 0));
              asyncAlertWindow->addButton ("Cancel", 0, KeyPress (KeyPress::escapeKey, 0, 0));
  
              asyncAlertWindow->enterModalState (true, ModalCallbackFunction::create (AsyncAlertBoxResultChosen { *this }));
          }
          else if (type == progressWindow)
          {
              // This will launch our ThreadWithProgressWindow in a modal state. (Our subclass
              // will take care of deleting the object when the task has finished)
              (new DemoBackgroundThread())->launchThread();
          }
          else if (type >= loadChooser && type <= saveChooser)
          {
              auto useNativeVersion = nativeButton.getToggleState();
  
              if (type == loadChooser)
              {
                  fc.reset (new FileChooser ("Choose a file to open...", File::getCurrentWorkingDirectory(),
                                             "*", useNativeVersion));
  
                  fc->launchAsync (FileBrowserComponent::canSelectMultipleItems | FileBrowserComponent::openMode
                                       | FileBrowserComponent::canSelectFiles,
                                   [] (const FileChooser& chooser)
                                   {
                                       String chosen;
                                       auto results = chooser.getURLResults();
  
                                       for (auto result : results)
                                           chosen << (result.isLocalFile() ? result.getLocalFile().getFullPathName()
                                                                           : result.toString (false)) << "\n";
  
                                       AlertWindow::showAsync (MessageBoxOptions()
                                                                 .withIconType (MessageBoxIconType::InfoIcon)
                                                                 .withTitle ("File Chooser...")
                                                                 .withMessage ("You picked: " + chosen)
                                                                 .withButton ("OK"),
                                                               nullptr);
                                   });
              }
              else if (type == loadWithPreviewChooser)
              {
                  imagePreview.setSize (200, 200);
  
                  fc.reset (new FileChooser ("Choose an image to open...", File::getCurrentWorkingDirectory(),
                                             "*.jpg;*.jpeg;*.png;*.gif", useNativeVersion));
  
                  fc->launchAsync (FileBrowserComponent::openMode | FileBrowserComponent::canSelectFiles
                                      | FileBrowserComponent::canSelectMultipleItems,
                                   [] (const FileChooser& chooser)
                                   {
                                       String chosen;
                                       auto results = chooser.getURLResults();
  
                                       for (auto result : results)
                                           chosen << (result.isLocalFile() ? result.getLocalFile().getFullPathName()
                                                                           : result.toString (false)) << "\n";
  
                                       AlertWindow::showAsync (MessageBoxOptions()
                                                                 .withIconType (MessageBoxIconType::InfoIcon)
                                                                 .withTitle ("File Chooser...")
                                                                 .withMessage ("You picked: " + chosen)
                                                                 .withButton ("OK"),
                                                               nullptr);
                                   },
                                   &imagePreview);
              }
              else if (type == saveChooser)
              {
                  auto fileToSave = File::createTempFile ("saveChooserDemo");
  
                  if (fileToSave.createDirectory().wasOk())
                  {
                      fileToSave = fileToSave.getChildFile ("JUCE.png");
                      fileToSave.deleteFile();
  
                      FileOutputStream outStream (fileToSave);
  
                      if (outStream.openedOk())
                          if (auto inStream = createAssetInputStream ("juce_icon.png"))
                              outStream.writeFromInputStream (*inStream, -1);
                  }
  
                  fc.reset (new FileChooser ("Choose a file to save...",
                                             File::getCurrentWorkingDirectory().getChildFile (fileToSave.getFileName()),
                                             "*",  useNativeVersion));
  
                  fc->launchAsync (FileBrowserComponent::saveMode | FileBrowserComponent::canSelectFiles,
                                   [fileToSave] (const FileChooser& chooser)
                                   {
                                       auto result = chooser.getURLResult();
                                       auto name = result.isEmpty() ? String()
                                                                    : (result.isLocalFile() ? result.getLocalFile().getFullPathName()
                                                                                            : result.toString (true));
  
                                       // Android and iOS file choosers will create placeholder files for chosen
                                       // paths, so we may as well write into those files.
                                     #if JUCE_ANDROID || JUCE_IOS
                                       if (! result.isEmpty())
                                       {
                                           std::unique_ptr<InputStream>  wi (fileToSave.createInputStream());
                                           std::unique_ptr<OutputStream> wo (result.createOutputStream());
  
                                           if (wi.get() != nullptr && wo.get() != nullptr)
                                           {
                                               auto numWritten = wo->writeFromInputStream (*wi, -1);
                                               jassertquiet (numWritten > 0);
                                               wo->flush();
                                           }
                                       }
                                     #endif
  
                                       AlertWindow::showAsync (MessageBoxOptions()
                                                                 .withIconType (MessageBoxIconType::InfoIcon)
                                                                 .withTitle ("File Chooser...")
                                                                 .withMessage ("You picked: " + name)
                                                                 .withButton ("OK"),
                                                               nullptr);
                                   });
              }
              else if (type == directoryChooser)
              {
                  fc.reset (new FileChooser ("Choose a directory...",
                                             File::getCurrentWorkingDirectory(),
                                             "*",
                                             useNativeVersion));
  
                  fc->launchAsync (FileBrowserComponent::openMode | FileBrowserComponent::canSelectDirectories,
                                   [] (const FileChooser& chooser)
                                   {
                                       auto result = chooser.getURLResult();
                                       auto name = result.isLocalFile() ? result.getLocalFile().getFullPathName()
                                                                        : result.toString (true);
  
                                       AlertWindow::showAsync (MessageBoxOptions()
                                                                 .withIconType (MessageBoxIconType::InfoIcon)
                                                                 .withTitle ("File Chooser...")
                                                                 .withMessage ("You picked: " + name)
                                                                 .withButton ("OK"),
                                                               nullptr);
                                   });
              }
          }
          else if (type == shareText)
          {
              ContentSharer::getInstance()->shareText ("I love JUCE!",
                                                       [] (bool success, const String& error)
                  {
                      auto resultString = success ? String ("success") : ("failure\n (error: " + error + ")");
  
                      AlertWindow::showAsync (MessageBoxOptions()
                                                .withIconType (MessageBoxIconType::InfoIcon)
                                                .withTitle ("Sharing Text Result")
                                                .withMessage ("Sharing text finished\nwith " + resultString)
                                                .withButton ("OK"),
                                              nullptr);
                  });
          }
          else if (type == shareFile)
          {
              File fileToSave = File::createTempFile ("DialogsDemoSharingTest");
  
              if (fileToSave.createDirectory().wasOk())
              {
                  fileToSave = fileToSave.getChildFile ("SharingDemoFile.txt");
                  fileToSave.replaceWithText ("Make it fast!");
  
                  Array<URL> urls;
                  urls.add (URL (fileToSave));
  
                  ContentSharer::getInstance()->shareFiles (urls,
                      [] (bool success, const String& error)
                      {
                          auto resultString = success ? String ("success") : ("failure\n (error: " + error + ")");
  
                          AlertWindow::showAsync (MessageBoxOptions()
                                                    .withIconType (MessageBoxIconType::InfoIcon)
                                                    .withTitle ("Sharing Files Result")
                                                    .withMessage ("Sharing files finished\nwith " + resultString)
                                                    .withButton ("OK"),
                                                  nullptr);
                      });
  
              }
          }
          else if (type == shareImage)
          {
              auto myImage = getImageFromAssets ("juce_icon.png");
  
              Image myImage2 (Image::RGB, 500, 500, true);
              Graphics g (myImage2);
              g.setColour (Colours::green);
              ColourGradient gradient (Colours::yellow, 170, 170, Colours::cyan, 170, 20, true);
              g.setGradientFill (gradient);
              g.fillEllipse (20, 20, 300, 300);
  
              Array<Image> images { myImage, myImage2 };
  
              ContentSharer::getInstance()->shareImages (images,
                                                         [] (bool success, const String& error)
                                                         {
                                                             String resultString = success ? String ("success")
                                                                                           : ("failure\n (error: " + error + ")");
  
                                                             AlertWindow::showAsync (MessageBoxOptions()
                                                                                       .withIconType (MessageBoxIconType::InfoIcon)
                                                                                       .withTitle ("Sharing Images Result")
                                                                                       .withMessage ("Sharing images finished\nwith " + resultString)
                                                                                       .withButton ("OK"),
                                                                                     nullptr);
                                                         });
          }
      }
  
      ImagePreviewComponent imagePreview;
      std::unique_ptr<FileChooser> fc;
      std::unique_ptr<AlertWindow> asyncAlertWindow;
  
      JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (DialogsDemo)
  };
  