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Implement Wayland_ShowMessageBox using Zenity
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,159 @@ | ||
| /* | ||
| Simple DirectMedia Layer | ||
| Copyright (C) 1997-2021 Sam Lantinga <slouken@libsdl.org> | ||
| This software is provided 'as-is', without any express or implied | ||
| warranty. In no event will the authors be held liable for any damages | ||
| arising from the use of this software. | ||
| Permission is granted to anyone to use this software for any purpose, | ||
| including commercial applications, and to alter it and redistribute it | ||
| freely, subject to the following restrictions: | ||
| 1. The origin of this software must not be misrepresented; you must not | ||
| claim that you wrote the original software. If you use this software | ||
| in a product, an acknowledgment in the product documentation would be | ||
| appreciated but is not required. | ||
| 2. Altered source versions must be plainly marked as such, and must not be | ||
| misrepresented as being the original software. | ||
| 3. This notice may not be removed or altered from any source distribution. | ||
| */ | ||
|
|
||
| #include "../../SDL_internal.h" | ||
|
|
||
| #if SDL_VIDEO_DRIVER_WAYLAND | ||
|
|
||
| #include "SDL.h" | ||
| #include <stdlib.h> /* popen/pclose/fgets */ | ||
|
|
||
| int | ||
| Wayland_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid) | ||
| { | ||
| #define ZENITY_CONST(name, str) \ | ||
| const char *name = str; \ | ||
| const size_t name##_len = SDL_strlen(name); | ||
| ZENITY_CONST(zenity, "zenity --question --switch --icon-name=dialog-") | ||
| ZENITY_CONST(title, "--title=") | ||
| ZENITY_CONST(message, "--text=") | ||
| ZENITY_CONST(extrabutton, "--extra-button=") | ||
| ZENITY_CONST(icon_info, "information") | ||
| ZENITY_CONST(icon_warn, "warning") | ||
| ZENITY_CONST(icon_error, "error") | ||
| #undef ZENITY_CONST | ||
|
|
||
| char *command, *output; | ||
| size_t command_len, output_len; | ||
| const char *icon; | ||
| char *tmp; | ||
| FILE *process; | ||
| int i; | ||
|
|
||
| /* Start by calculating the lengths of the strings. These commands can get | ||
| * pretty long, so we need to dynamically allocate this. | ||
| */ | ||
| command_len = zenity_len; | ||
| output_len = 0; | ||
| switch (messageboxdata->flags) | ||
| { | ||
| case SDL_MESSAGEBOX_ERROR: | ||
| icon = icon_error; | ||
| command_len += icon_error_len; | ||
| break; | ||
| case SDL_MESSAGEBOX_WARNING: | ||
| icon = icon_warn; | ||
| command_len += icon_warn_len; | ||
| break; | ||
| case SDL_MESSAGEBOX_INFORMATION: | ||
| default: | ||
| icon = icon_info; | ||
| command_len += icon_info_len; | ||
| break; | ||
| } | ||
| #define ADD_ARGUMENT(arg, value) \ | ||
| command_len += arg + 3; /* Two " and a space */ \ | ||
| if (messageboxdata->value != NULL) { \ | ||
| command_len += SDL_strlen(messageboxdata->value); \ | ||
| } | ||
| ADD_ARGUMENT(title_len, title) | ||
| ADD_ARGUMENT(message_len, message) | ||
| for (i = 0; i < messageboxdata->numbuttons; i += 1) { | ||
| ADD_ARGUMENT(extrabutton_len, buttons[i].text) | ||
| } | ||
| #undef ADD_ARGUMENT | ||
|
|
||
| /* Don't forget null terminators! */ | ||
| command_len += 1; | ||
| output_len += 1; | ||
|
|
||
| /* Now that we know the length of the command, allocate! */ | ||
| command = (char*) SDL_malloc(command_len + output_len); | ||
| if (command == NULL) { | ||
| return SDL_OutOfMemory(); | ||
| } | ||
| output = command + command_len; | ||
| command[0] = '\0'; | ||
| output[0] = '\0'; | ||
|
|
||
| /* Now we can build the command... */ | ||
| SDL_strlcpy(command, zenity, command_len); | ||
| SDL_strlcat(command, icon, command_len); | ||
| #define ADD_ARGUMENT(arg, value) \ | ||
| SDL_strlcat(command, " ", command_len); \ | ||
| SDL_strlcat(command, arg, command_len); \ | ||
| SDL_strlcat(command, "\"", command_len); \ | ||
| if (value != NULL) { \ | ||
| SDL_strlcat(command, value, command_len); \ | ||
| } \ | ||
| SDL_strlcat(command, "\"", command_len) | ||
| ADD_ARGUMENT(title, messageboxdata->title); | ||
| ADD_ARGUMENT(message, messageboxdata->message); | ||
| for (i = 0; i < messageboxdata->numbuttons; i += 1) { | ||
| ADD_ARGUMENT(extrabutton, messageboxdata->buttons[i].text); | ||
| } | ||
| #undef ADD_ARGUMENT | ||
|
|
||
| /* ... then run it, finally. */ | ||
| process = popen(command, "r"); | ||
| if (process == NULL) { | ||
| SDL_free(command); | ||
| return SDL_SetError("zenity failed to run"); | ||
| } | ||
|
|
||
| /* At this point, if no button ID is needed, we can just bail as soon as the | ||
| * process has completed. | ||
| */ | ||
| if (buttonid == NULL) { | ||
| pclose(process); | ||
| goto end; | ||
| } | ||
| *buttonid = -1; | ||
|
|
||
| /* Read the result from stdout */ | ||
| tmp = fgets(output, output_len, process); | ||
| pclose(process); | ||
| if ((tmp == NULL) || (*tmp == '\0') || (*tmp == '\n')) { | ||
| goto end; /* User simply closed the dialog */ | ||
| } | ||
|
|
||
| /* It likes to add a newline... */ | ||
| tmp = SDL_strrchr(output, '\n'); | ||
| if (tmp != NULL) { | ||
| *tmp = '\0'; | ||
| } | ||
|
|
||
| /* Check which button got pressed */ | ||
| for (i = 0; i < messageboxdata->numbuttons; i += 1) { | ||
| if (SDL_strcmp(output, messageboxdata->buttons[i].text) == 0) { | ||
| *buttonid = i; | ||
| break; | ||
| } | ||
| } | ||
|
|
||
| end: | ||
| SDL_free(command); | ||
| return 0; | ||
| } | ||
|
|
||
| #endif /* SDL_VIDEO_DRIVER_WAYLAND */ | ||
|
|
||
| /* vi: set ts=4 sw=4 expandtab: */ |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| /* | ||
| Simple DirectMedia Layer | ||
| Copyright (C) 1997-2021 Sam Lantinga <slouken@libsdl.org> | ||
| This software is provided 'as-is', without any express or implied | ||
| warranty. In no event will the authors be held liable for any damages | ||
| arising from the use of this software. | ||
| Permission is granted to anyone to use this software for any purpose, | ||
| including commercial applications, and to alter it and redistribute it | ||
| freely, subject to the following restrictions: | ||
| 1. The origin of this software must not be misrepresented; you must not | ||
| claim that you wrote the original software. If you use this software | ||
| in a product, an acknowledgment in the product documentation would be | ||
| appreciated but is not required. | ||
| 2. Altered source versions must be plainly marked as such, and must not be | ||
| misrepresented as being the original software. | ||
| 3. This notice may not be removed or altered from any source distribution. | ||
| */ | ||
|
|
||
| #ifndef SDL_waylandmessagebox_h_ | ||
| #define SDL_waylandmessagebox_h_ | ||
|
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| #if SDL_VIDEO_DRIVER_WAYLAND | ||
|
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| extern int Wayland_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid); | ||
|
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| #endif /* SDL_VIDEO_DRIVER_WAYLAND */ | ||
|
|
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| #endif /* SDL_waylandmessagebox_h_ */ | ||
|
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||
| /* vi: set ts=4 sw=4 expandtab: */ |