C++ (Cpp) css_select_ctx_create Examples

Example #1

File: html_css.c Project: EyMenZ/NetSurf-OS3

nserror
html_css_new_selection_context(html_content *c, css_select_ctx **ret_select_ctx)
{
	uint32_t i;
	css_error css_ret;
	css_select_ctx *select_ctx;

	/* check that the base stylesheet loaded; layout fails without it */
	if (c->stylesheets[STYLESHEET_BASE].sheet == NULL) {
		return NSERROR_CSS_BASE;
	}

	/* Create selection context */
	css_ret = css_select_ctx_create(&select_ctx);
	if (css_ret != CSS_OK) {
		return css_error_to_nserror(css_ret);
	}

	/* Add sheets to it */
	for (i = STYLESHEET_BASE; i != c->stylesheet_count; i++) {
		const struct html_stylesheet *hsheet = &c->stylesheets[i];
		css_stylesheet *sheet = NULL;
		css_origin origin = CSS_ORIGIN_AUTHOR;

		if (i < STYLESHEET_USER) {
			origin = CSS_ORIGIN_UA;
		} else if (i < STYLESHEET_START) {
			origin = CSS_ORIGIN_USER;
		}

		if (hsheet->sheet != NULL) {
			sheet = nscss_get_stylesheet(hsheet->sheet);
		}

		if (sheet != NULL) {
			css_ret = css_select_ctx_append_sheet(select_ctx,
							      sheet,
							      origin,
							      CSS_MEDIA_SCREEN);
			if (css_ret != CSS_OK) {
				css_select_ctx_destroy(select_ctx);
				return css_error_to_nserror(css_ret);
			}
		}
	}

	/* return new selection context to caller */
	*ret_select_ctx = select_ctx;
	return NSERROR_OK;
}

Example #2

File: select-common.c Project: LucidFusionLabs/libcss

void run_test(line_ctx *ctx, const char *exp, size_t explen)
{
	css_select_ctx *select;
	css_select_results *results;
	uint32_t i;
	char *buf;
	size_t buflen;
	static int testnum;

	UNUSED(exp);

	buf = malloc(8192);
	if (buf == NULL) {
		assert(0 && "No memory for result data");
	}
	buflen = 8192;

	assert(css_select_ctx_create(&select) == CSS_OK);

	for (i = 0; i < ctx->n_sheets; i++) {
		assert(css_select_ctx_append_sheet(select, 
				ctx->sheets[i].sheet, ctx->sheets[i].origin,
				ctx->sheets[i].media) == CSS_OK);
	}

	testnum++;

	assert(css_select_style(select, ctx->target, ctx->media, NULL, 
			&select_handler, ctx, &results) == CSS_OK);

	assert(results->styles[ctx->pseudo_element] != NULL);

	dump_computed_style(results->styles[ctx->pseudo_element], buf, &buflen);

	if (8192 - buflen != explen || memcmp(buf, exp, explen) != 0) {
		printf("Expected (%u):\n%.*s\n", 
				(int) explen, (int) explen, exp);
		printf("Result (%u):\n%.*s\n", (int) (8192 - buflen),
			(int) (8192 - buflen), buf);
		assert(0 && "Result doesn't match expected");
	}

	/* Clean up */
	css_select_results_destroy(results);
	css_select_ctx_destroy(select);

	destroy_tree(ctx->tree);

	for (i = 0; i < ctx->n_sheets; i++) {
		css_stylesheet_destroy(ctx->sheets[i].sheet);
	}

	ctx->tree = NULL;
	ctx->current = NULL;
	ctx->depth = 0;
	ctx->n_sheets = 0;
	free(ctx->sheets);
	ctx->sheets = NULL;
	ctx->target = NULL;

	free(buf);

	printf("Test %d: PASS\n", testnum);
}