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ea99e0c03e
The Windows Phone 8.1 'MessageDialog' API only seems to support two buttons, despite the documentation for such mentioning support for three. Trying to use three or more buttons leads to an exception being thrown. As such, any attempt to use more than two buttons via SDL_ShowMessageBox (on Windows Phone 8.1) will lead to no message box getting shown, and the call returning an error. The Win32 MessageBox and dialog APIs are not available in WinRT apps, to note. More extensive message dialog support might be available at some point, if and when XAML support is more fully fleshed-out. I'm not certain of this, though.
113 lines
4.2 KiB
C++
113 lines
4.2 KiB
C++
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#if SDL_VIDEO_DRIVER_WINRT
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extern "C" {
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#include "SDL_messagebox.h"
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#include "../../core/windows/SDL_windows.h"
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}
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#include "SDL_winrtevents_c.h"
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#include <windows.ui.popups.h>
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using namespace Platform;
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using namespace Windows::Foundation;
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using namespace Windows::UI::Popups;
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static String ^
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WINRT_UTF8ToPlatformString(const char * str)
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{
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wchar_t * wstr = WIN_UTF8ToString(str);
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String ^ rtstr = ref new String(wstr);
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SDL_free(wstr);
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return rtstr;
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}
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extern "C" int
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WINRT_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid)
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{
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#if (WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP) && (NTDDI_VERSION == NTDDI_WIN8)
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/* Sadly, Windows Phone 8 doesn't include the MessageDialog class that
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* Windows 8.x/RT does, even though MSDN's reference documentation for
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* Windows Phone 8 mentions it.
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*
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* The .NET runtime on Windows Phone 8 does, however, include a
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* MessageBox class. Perhaps this could be called, somehow?
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*/
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return SDL_SetError("SDL_messagebox support is not available for Windows Phone 8.0");
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#else
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SDL_VideoDevice *_this = SDL_GetVideoDevice();
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#if WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
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const int maxbuttons = 3;
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const char * platform = "Windows Phone 8.1+";
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#else
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const int maxbuttons = 3;
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const char * platform = "Windows 8.x";
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#endif
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if (messageboxdata->numbuttons > maxbuttons) {
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return SDL_SetError("WinRT's MessageDialog only supports %d buttons, at most, on %s. %d were requested.",
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maxbuttons, platform, messageboxdata->numbuttons);
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}
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/* Build a MessageDialog object and its buttons */
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MessageDialog ^ dialog = ref new MessageDialog(WINRT_UTF8ToPlatformString(messageboxdata->message));
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dialog->Title = WINRT_UTF8ToPlatformString(messageboxdata->title);
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for (int i = 0; i < messageboxdata->numbuttons; ++i) {
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UICommand ^ button = ref new UICommand(WINRT_UTF8ToPlatformString(messageboxdata->buttons[i].text));
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button->Id = safe_cast<IntPtr>(i);
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dialog->Commands->Append(button);
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if (messageboxdata->buttons[i].flags & SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT) {
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dialog->CancelCommandIndex = i;
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}
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if (messageboxdata->buttons[i].flags & SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT) {
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dialog->DefaultCommandIndex = i;
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}
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}
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/* Display the MessageDialog, then wait for it to be closed */
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/* TODO, WinRT: Find a way to redraw MessageDialog instances if a GPU device-reset occurs during the following event-loop */
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auto operation = dialog->ShowAsync();
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while (operation->Status == Windows::Foundation::AsyncStatus::Started) {
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WINRT_PumpEvents(_this);
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}
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/* Retrieve results from the MessageDialog and process them accordingly */
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if (operation->Status != Windows::Foundation::AsyncStatus::Completed) {
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return SDL_SetError("An unknown error occurred in displaying the WinRT MessageDialog");
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}
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if (buttonid) {
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IntPtr results = safe_cast<IntPtr>(operation->GetResults()->Id);
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int clicked_index = results.ToInt32();
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*buttonid = messageboxdata->buttons[clicked_index].buttonid;
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}
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return 0;
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#endif /* if WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP / else */
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}
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#endif /* SDL_VIDEO_DRIVER_WINRT */
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/* vi: set ts=4 sw=4 expandtab: */
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