Blocking Confirm/Error/Input prompts (EngineProcess creates a new event loop which can be broken out of with Engine::Break())

1 files changed, 80 insertions, 1 deletions

diff --git a/src/dialogues/ConfirmPrompt.cpp b/src/dialogues/ConfirmPrompt.cpp
index 459e1c0..312d98c 100644
--- a/src/dialogues/ConfirmPrompt.cpp
+++ b/src/dialogues/ConfirmPrompt.cpp
@@ -9,6 +9,7 @@
 #include "Style.h"
 #include "interface/Label.h"
 #include "interface/Button.h"
+#include "PowderToy.h"
 
 ConfirmPrompt::ConfirmPrompt(std::string title, std::string message, ConfirmDialogueCallback * callback_):
 	ui::Window(ui::Point(-1, -1), ui::Point(250, 50)),
@@ -40,7 +41,8 @@ ConfirmPrompt::ConfirmPrompt(std::string title, std::string message, ConfirmDial
 		void ActionCallback(ui::Button * sender)
 		{
 			ui::Engine::Ref().CloseWindow();
-			prompt->callback->ConfirmCallback(result);
+			if(prompt->callback)
+				prompt->callback->ConfirmCallback(result);
 			prompt->SelfDestruct();
 		}
 	};
@@ -65,6 +67,83 @@ ConfirmPrompt::ConfirmPrompt(std::string title, std::string message, ConfirmDial
 	ui::Engine::Ref().ShowWindow(this);
 }
 
+ConfirmPrompt::ConfirmPrompt(std::string title, std::string message, std::string buttonText, ConfirmDialogueCallback * callback_):
+	ui::Window(ui::Point(-1, -1), ui::Point(250, 50)),
+	callback(callback_)
+{
+	int width, height;
+	ui::Label * titleLabel = new ui::Label(ui::Point(4, 5), ui::Point(Size.X-8, 15), title);
+	titleLabel->SetTextColour(style::Colour::WarningTitle);
+	titleLabel->Appearance.HorizontalAlign = ui::Appearance::AlignLeft;
+	titleLabel->Appearance.VerticalAlign = ui::Appearance::AlignMiddle;
+	AddComponent(titleLabel);
+
+
+	ui::Label * messageLabel = new ui::Label(ui::Point(4, 25), ui::Point(Size.X-8, -1), message);
+	messageLabel->SetMultiline(true);
+	messageLabel->Appearance.HorizontalAlign = ui::Appearance::AlignLeft;
+	messageLabel->Appearance.VerticalAlign = ui::Appearance::AlignTop;
+	AddComponent(messageLabel);
+
+	Size.Y += messageLabel->Size.Y+12;
+	Position.Y = (ui::Engine::Ref().GetHeight()-Size.Y)/2;
+
+	class CloseAction: public ui::ButtonAction
+	{
+	public:
+		ConfirmPrompt * prompt;
+		DialogueResult result;
+		CloseAction(ConfirmPrompt * prompt_, DialogueResult result_) { prompt = prompt_; result = result_; }
+		void ActionCallback(ui::Button * sender)
+		{
+			ui::Engine::Ref().CloseWindow();
+			if(prompt->callback)
+				prompt->callback->ConfirmCallback(result);
+			prompt->SelfDestruct();
+		}
+	};
+
+
+	ui::Button * cancelButton = new ui::Button(ui::Point(0, Size.Y-16), ui::Point(Size.X-75, 16), "Cancel");
+	cancelButton->Appearance.HorizontalAlign = ui::Appearance::AlignLeft;
+	cancelButton->Appearance.VerticalAlign = ui::Appearance::AlignMiddle;
+	cancelButton->Appearance.BorderInactive = ui::Colour(200, 200, 200);
+	cancelButton->SetActionCallback(new CloseAction(this, ResultCancel));
+	AddComponent(cancelButton);
+	SetCancelButton(cancelButton);
+
+	ui::Button * okayButton = new ui::Button(ui::Point(Size.X-76, Size.Y-16), ui::Point(76, 16), buttonText);
+	okayButton->Appearance.HorizontalAlign = ui::Appearance::AlignLeft;
+	okayButton->Appearance.VerticalAlign = ui::Appearance::AlignMiddle;
+	okayButton->Appearance.TextInactive = style::Colour::WarningTitle;
+	okayButton->SetActionCallback(new CloseAction(this, ResultOkay));
+	AddComponent(okayButton);
+	SetOkayButton(okayButton);
+
+	ui::Engine::Ref().ShowWindow(this);
+}
+
+bool ConfirmPrompt::Blocking(std::string title, std::string message, std::string buttonText)
+{
+	class BlockingPromptCallback: public ConfirmDialogueCallback {
+	public:
+		bool & outputResult;
+		BlockingPromptCallback(bool & output): outputResult(output) {}
+		virtual void ConfirmCallback(ConfirmPrompt::DialogueResult result) {
+			if (result == ConfirmPrompt::ResultOkay)
+				outputResult = true;
+			else
+				outputResult = false;
+			ui::Engine::Ref().Break();
+		}
+		virtual ~BlockingPromptCallback() { }
+	};
+	bool result;
+	new ConfirmPrompt(title, message, buttonText, new BlockingPromptCallback(result));
+	EngineProcess();
+	return result;
+}
+
 void ConfirmPrompt::OnDraw()
 {
 	Graphics * g = ui::Engine::Ref().g;