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Diffstat (limited to 'content/handlers/html/layout.c')
-rw-r--r--content/handlers/html/layout.c86
1 files changed, 55 insertions, 31 deletions
diff --git a/content/handlers/html/layout.c b/content/handlers/html/layout.c
index 28a8465a0..f7653f96a 100644
--- a/content/handlers/html/layout.c
+++ b/content/handlers/html/layout.c
@@ -119,6 +119,50 @@ static inline bool lh__have_border(
return border_style_funcs[side](style) != CSS_BORDER_STYLE_NONE;
}
+/** Layout helper: Check whether box is a float. */
+static inline bool lh__box_is_float_box(const struct box *b)
+{
+ return b->type == BOX_FLOAT_LEFT ||
+ b->type == BOX_FLOAT_RIGHT;
+}
+
+/** Layout helper: Check whether box takes part in inline flow. */
+static inline bool lh__box_is_inline_flow(const struct box *b)
+{
+ return b->type == BOX_INLINE ||
+ b->type == BOX_INLINE_BLOCK ||
+ b->type == BOX_TEXT ||
+ b->type == BOX_INLINE_END;
+}
+
+/** Layout helper: Check whether box is inline level. (Includes BR.) */
+static inline bool lh__box_is_inline_level(const struct box *b)
+{
+ return lh__box_is_inline_flow(b) ||
+ b->type == BOX_BR;
+}
+
+/** Layout helper: Check whether box is inline level. (Includes BR, floats.) */
+static inline bool lh__box_is_inline_content(const struct box *b)
+{
+ return lh__box_is_float_box(b) ||
+ lh__box_is_inline_level(b);
+}
+
+/** Layout helper: Check whether box is an object. */
+static inline bool lh__box_is_object(const struct box *b)
+{
+ return b->object ||
+ (b->flags & (IFRAME | REPLACE_DIM));
+}
+
+/** Layout helper: Check whether box is replaced. */
+static inline bool lh__box_is_replace(const struct box *b)
+{
+ return b->gadget ||
+ lh__box_is_object(b);
+}
+
/** Array of per-side access functions for computed style border colors. */
static const css_border_color_func border_color_funcs[4] = {
[TOP] = css_computed_border_top_color,
@@ -584,11 +628,7 @@ layout_minmax_line(struct box *first,
css_fixed value = 0;
css_unit unit = CSS_UNIT_PX;
- assert(b->type == BOX_INLINE || b->type == BOX_INLINE_BLOCK ||
- b->type == BOX_FLOAT_LEFT ||
- b->type == BOX_FLOAT_RIGHT ||
- b->type == BOX_BR || b->type == BOX_TEXT ||
- b->type == BOX_INLINE_END);
+ assert(lh__box_is_inline_content(b));
NSLOG(layout, DEBUG, "%p: min %i, max %i", b, min, max);
@@ -597,7 +637,7 @@ layout_minmax_line(struct box *first,
break;
}
- if (b->type == BOX_FLOAT_LEFT || b->type == BOX_FLOAT_RIGHT) {
+ if (lh__box_is_float_box(b)) {
assert(b->children);
if (b->children->type == BOX_BLOCK)
layout_minmax_block(b->children, font_func,
@@ -664,8 +704,7 @@ layout_minmax_line(struct box *first,
continue;
}
- if (!b->object && !(b->flags & IFRAME) && !b->gadget &&
- !(b->flags & REPLACE_DIM)) {
+ if (lh__box_is_replace(b) == false) {
/* inline non-replaced, 10.3.1 and 10.6.1 */
bool no_wrap_box;
if (!b->text)
@@ -986,8 +1025,7 @@ static void layout_minmax_block(
}
/* set whether the minimum width is of any interest for this box */
- if (((block->parent && (block->parent->type == BOX_FLOAT_LEFT ||
- block->parent->type == BOX_FLOAT_RIGHT)) ||
+ if (((block->parent && lh__box_is_float_box(block->parent)) ||
block->type == BOX_INLINE_BLOCK) &&
wtype != CSS_WIDTH_SET) {
/* box shrinks to fit; need minimum width */
@@ -3183,20 +3221,14 @@ layout_line(struct box *first,
for (x = 0, b = first; x <= x1 - x0 && b != 0; b = b->next) {
int min_width, max_width, min_height, max_height;
- assert(b->type == BOX_INLINE || b->type == BOX_INLINE_BLOCK ||
- b->type == BOX_FLOAT_LEFT ||
- b->type == BOX_FLOAT_RIGHT ||
- b->type == BOX_BR || b->type == BOX_TEXT ||
- b->type == BOX_INLINE_END);
-
+ assert(lh__box_is_inline_content(b));
NSLOG(layout, DEBUG, "pass 1: b %p, x %i", b, x);
-
if (b->type == BOX_BR)
break;
- if (b->type == BOX_FLOAT_LEFT || b->type == BOX_FLOAT_RIGHT)
+ if (lh__box_is_float_box(b))
continue;
if (b->type == BOX_INLINE_BLOCK &&
(css_computed_position(b->style) ==
@@ -3262,8 +3294,7 @@ layout_line(struct box *first,
continue;
}
- if (!b->object && !(b->flags & IFRAME) && !b->gadget &&
- !(b->flags & REPLACE_DIM)) {
+ if (lh__box_is_replace(b) == false) {
/* inline non-replaced, 10.3.1 and 10.6.1 */
b->height = line_height(&content->len_ctx,
b->style ? b->style :
@@ -3421,10 +3452,7 @@ layout_line(struct box *first,
CSS_POSITION_FIXED)) {
b->x = x + space_after;
- } else if (b->type == BOX_INLINE ||
- b->type == BOX_INLINE_BLOCK ||
- b->type == BOX_TEXT ||
- b->type == BOX_INLINE_END) {
+ } else if (lh__box_is_inline_flow(b)) {
assert(b->width != UNKNOWN_WIDTH);
x_previous = x;
@@ -3763,9 +3791,7 @@ layout_line(struct box *first,
d->y = *y;
continue;
} else if ((d->type == BOX_INLINE &&
- ((d->object || d->gadget) == false) &&
- !(d->flags & IFRAME) &&
- !(d->flags & REPLACE_DIM)) ||
+ lh__box_is_replace(d) == false) ||
d->type == BOX_BR ||
d->type == BOX_TEXT ||
d->type == BOX_INLINE_END) {
@@ -3886,8 +3912,7 @@ static bool layout_inline_container(struct box *inline_container, int width,
whitespace == CSS_WHITE_SPACE_PRE_WRAP);
}
- if ((!c->object && !(c->flags & REPLACE_DIM) &&
- !(c->flags & IFRAME) &&
+ if ((lh__box_is_object(c) == false &&
c->text && (c->length || is_pre)) ||
c->type == BOX_BR)
has_text_children = true;
@@ -4066,8 +4091,7 @@ layout_block_context(struct box *block,
lm = rm = 0;
if (box->type == BOX_BLOCK || box->flags & IFRAME) {
- if (!box->object && !(box->flags & IFRAME) &&
- !(box->flags & REPLACE_DIM) &&
+ if (lh__box_is_object(box) == false &&
box->style &&
(overflow_x != CSS_OVERFLOW_VISIBLE ||
overflow_y != CSS_OVERFLOW_VISIBLE)) {