util.c

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// SPDX-License-Identifier: GPL-2.0
#include "../util.h"
#include "../../util/util.h"
#include "../../util/debug.h"
#include "gtk.h"

#include <string.h>


struct perf_gtk_context *pgctx;

struct perf_gtk_context *perf_gtk__activate_context(GtkWidget *window)
{
    struct perf_gtk_context *ctx;

    ctx = malloc(sizeof(*pgctx));
    if (ctx)
        ctx->main_window = window;

    return ctx;
}

int perf_gtk__deactivate_context(struct perf_gtk_context **ctx)
{
    if (!perf_gtk__is_active_context(*ctx))
        return -1;

    zfree(ctx);
    return 0;
}

static int perf_gtk__error(const char *format, va_list args)
{
    char *msg;
    GtkWidget *dialog;

    if (!perf_gtk__is_active_context(pgctx) ||
        vasprintf(&msg, format, args) < 0) {
        fprintf(stderr, "Error:\n");
        vfprintf(stderr, format, args);
        fprintf(stderr, "\n");
        return -1;
    }

    dialog = gtk_message_dialog_new_with_markup(GTK_WINDOW(pgctx->main_window),
                    GTK_DIALOG_DESTROY_WITH_PARENT,
                    GTK_MESSAGE_ERROR,
                    GTK_BUTTONS_CLOSE,
                    "<b>Error</b>\n\n%s", msg);
    gtk_dialog_run(GTK_DIALOG(dialog));

    gtk_widget_destroy(dialog);
    free(msg);
    return 0;
}

#ifdef HAVE_GTK_INFO_BAR_SUPPORT
static int perf_gtk__warning_info_bar(const char *format, va_list args)
{
    char *msg;

    if (!perf_gtk__is_active_context(pgctx) ||
        vasprintf(&msg, format, args) < 0) {
        fprintf(stderr, "Warning:\n");
        vfprintf(stderr, format, args);
        fprintf(stderr, "\n");
        return -1;
    }

    gtk_label_set_text(GTK_LABEL(pgctx->message_label), msg);
    gtk_info_bar_set_message_type(GTK_INFO_BAR(pgctx->info_bar),
                      GTK_MESSAGE_WARNING);
    gtk_widget_show(pgctx->info_bar);

    free(msg);
    return 0;
}
#else
static int perf_gtk__warning_statusbar(const char *format, va_list args)
{
    char *msg, *p;

    if (!perf_gtk__is_active_context(pgctx) ||
        vasprintf(&msg, format, args) < 0) {
        fprintf(stderr, "Warning:\n");
        vfprintf(stderr, format, args);
        fprintf(stderr, "\n");
        return -1;
    }

    gtk_statusbar_pop(GTK_STATUSBAR(pgctx->statbar),
              pgctx->statbar_ctx_id);

    /* Only first line can be displayed */
    p = strchr(msg, '\n');
    if (p)
        *p = '\0';

    gtk_statusbar_push(GTK_STATUSBAR(pgctx->statbar),
               pgctx->statbar_ctx_id, msg);

    free(msg);
    return 0;
}
#endif

struct perf_error_ops perf_gtk_eops = {
    .error      = perf_gtk__error,
#ifdef HAVE_GTK_INFO_BAR_SUPPORT
    .warning    = perf_gtk__warning_info_bar,
#else
    .warning    = perf_gtk__warning_statusbar,
#endif
};