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eeshow/gui/ (aoi_click): also protect from access after free
Unlike aoi_hover, aoi_click was not observed to actually run into this problem. But better safe than sorry.
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@ -101,14 +101,16 @@ static bool need_dehover(const struct aoi *aois, int x, int y)
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}
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bool aoi_click(const struct aoi *aois, int x, int y)
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/* Pointer to the anchor needed for the same reason as in aoi_hover. */
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bool aoi_click(struct aoi *const *aois, int x, int y)
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{
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const struct aoi *aoi;
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if (need_dehover(aois, x, y))
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if (need_dehover(*aois, x, y))
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aoi_dehover();
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for (aoi = aois; aoi; aoi = aoi->next)
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for (aoi = *aois; aoi; aoi = aoi->next)
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if (aoi->click && in_aoi(aoi, x, y)) {
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aoi->click(aoi->user);
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return 1;
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@ -34,7 +34,7 @@ struct aoi *aoi_add(struct aoi **aois, const struct aoi *cfg);
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void aoi_update(struct aoi *aoi, const struct aoi *cfg);
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bool aoi_hover(struct aoi *const *aois, int x, int y);
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bool aoi_click(const struct aoi *aois, int x, int y);
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bool aoi_click(struct aoi *const *aois, int x, int y);
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void aoi_set_related(struct aoi *aoi, const struct aoi *related);
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@ -206,7 +206,7 @@ static bool history_click(void *user, int x, int y)
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{
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struct gui_ctx *ctx = user;
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if (aoi_click(ctx->aois, x, y))
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if (aoi_click(&ctx->aois, x, y))
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return 1;
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hide_history(ctx);
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return 1;
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@ -394,9 +394,9 @@ static bool sheet_click(void *user, int x, int y)
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curr_sheet = find_corresponding_sheet(ctx->old_hist->sheets,
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ctx->new_hist->sheets, ctx->curr_sheet);
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if (aoi_click(ctx->aois, x, y))
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if (aoi_click(&ctx->aois, x, y))
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return 1;
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if (aoi_click(curr_sheet->aois,
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if (aoi_click(&curr_sheet->aois,
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ex + curr_sheet->xmin, ey + curr_sheet->ymin))
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return 1;
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