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-rw-r--r--content/handlers/html/box_normalise.c204
1 files changed, 200 insertions, 4 deletions
diff --git a/content/handlers/html/box_normalise.c b/content/handlers/html/box_normalise.c
index 7155cb722..6bb107d64 100644
--- a/content/handlers/html/box_normalise.c
+++ b/content/handlers/html/box_normalise.c
@@ -93,6 +93,180 @@ static bool box_normalise_inline_container(
const struct box *root,
html_content *c);
+static bool box_normalise_flex(
+ struct box *flex_container,
+ const struct box *root,
+ html_content *c)
+{
+ struct box *child;
+ struct box *next_child;
+ struct box *implied_flex_item;
+ css_computed_style *style;
+ nscss_select_ctx ctx;
+
+ assert(flex_container != NULL);
+ assert(root != NULL);
+
+ ctx.root_style = root->style;
+
+#ifdef BOX_NORMALISE_DEBUG
+ NSLOG(netsurf, INFO, "flex_container %p, flex_container->type %u",
+ flex_container, flex_container->type);
+#endif
+
+ assert(flex_container->type == BOX_FLEX ||
+ flex_container->type == BOX_INLINE_FLEX);
+
+ for (child = flex_container->children; child != NULL; child = next_child) {
+#ifdef BOX_NORMALISE_DEBUG
+ NSLOG(netsurf, INFO, "child %p, child->type = %d",
+ child, child->type);
+#endif
+
+ next_child = child->next; /* child may be destroyed */
+
+ switch (child->type) {
+ case BOX_FLEX:
+ /* ok */
+ if (box_normalise_flex(child, root, c) == false)
+ return false;
+ break;
+ case BOX_BLOCK:
+ /* ok */
+ if (box_normalise_block(child, root, c) == false)
+ return false;
+ break;
+ case BOX_INLINE_CONTAINER:
+ /* insert implied flex item */
+ assert(flex_container->style != NULL);
+
+ ctx.ctx = c->select_ctx;
+ ctx.quirks = (c->quirks == DOM_DOCUMENT_QUIRKS_MODE_FULL);
+ ctx.base_url = c->base_url;
+ ctx.universal = c->universal;
+
+ style = nscss_get_blank_style(&ctx, flex_container->style);
+ if (style == NULL)
+ return false;
+
+ implied_flex_item = box_create(NULL, style, true,
+ flex_container->href,
+ flex_container->target,
+ NULL, NULL, c->bctx);
+ if (implied_flex_item == NULL) {
+ css_computed_style_destroy(style);
+ return false;
+ }
+ implied_flex_item->type = BOX_BLOCK;
+
+ if (child->prev == NULL)
+ flex_container->children = implied_flex_item;
+ else
+ child->prev->next = implied_flex_item;
+
+ implied_flex_item->prev = child->prev;
+
+ while (child != NULL &&
+ child->type == BOX_INLINE_CONTAINER) {
+ box_add_child(implied_flex_item, child);
+
+ next_child = child->next;
+ child->next = NULL;
+ child = next_child;
+ }
+
+ implied_flex_item->last->next = NULL;
+ implied_flex_item->next = next_child = child;
+ if (implied_flex_item->next != NULL)
+ implied_flex_item->next->prev = implied_flex_item;
+ else
+ flex_container->last = implied_flex_item;
+ implied_flex_item->parent = flex_container;
+
+ if (box_normalise_block(implied_flex_item,
+ root, c) == false)
+ return false;
+ break;
+
+ case BOX_TABLE:
+ if (box_normalise_table(child, root, c) == false)
+ return false;
+ break;
+ case BOX_INLINE:
+ case BOX_INLINE_END:
+ case BOX_INLINE_FLEX:
+ case BOX_INLINE_BLOCK:
+ case BOX_FLOAT_LEFT:
+ case BOX_FLOAT_RIGHT:
+ case BOX_BR:
+ case BOX_TEXT:
+ /* should have been wrapped in inline
+ container by convert_xml_to_box() */
+ assert(0);
+ break;
+ case BOX_TABLE_ROW_GROUP:
+ case BOX_TABLE_ROW:
+ case BOX_TABLE_CELL:
+ /* insert implied table */
+ assert(flex_container->style != NULL);
+
+ ctx.ctx = c->select_ctx;
+ ctx.quirks = (c->quirks == DOM_DOCUMENT_QUIRKS_MODE_FULL);
+ ctx.base_url = c->base_url;
+ ctx.universal = c->universal;
+
+ style = nscss_get_blank_style(&ctx, flex_container->style);
+ if (style == NULL)
+ return false;
+
+ implied_flex_item = box_create(NULL, style, true,
+ flex_container->href,
+ flex_container->target,
+ NULL, NULL, c->bctx);
+ if (implied_flex_item == NULL) {
+ css_computed_style_destroy(style);
+ return false;
+ }
+ implied_flex_item->type = BOX_TABLE;
+
+ if (child->prev == NULL)
+ flex_container->children = implied_flex_item;
+ else
+ child->prev->next = implied_flex_item;
+
+ implied_flex_item->prev = child->prev;
+
+ while (child != NULL && (
+ child->type == BOX_TABLE_ROW_GROUP ||
+ child->type == BOX_TABLE_ROW ||
+ child->type == BOX_TABLE_CELL)) {
+ box_add_child(implied_flex_item, child);
+
+ next_child = child->next;
+ child->next = NULL;
+ child = next_child;
+ }
+
+ implied_flex_item->last->next = NULL;
+ implied_flex_item->next = next_child = child;
+ if (implied_flex_item->next != NULL)
+ implied_flex_item->next->prev = implied_flex_item;
+ else
+ flex_container->last = implied_flex_item;
+ implied_flex_item->parent = flex_container;
+
+ if (box_normalise_table(implied_flex_item,
+ root, c) == false)
+ return false;
+ break;
+ default:
+ assert(0);
+ }
+ }
+
+ return true;
+}
+
/**
* Ensure the box tree is correctly nested by adding and removing nodes.
*
@@ -104,14 +278,15 @@ static bool box_normalise_inline_container(
* The tree is modified to satisfy the following:
* \code
* parent permitted child nodes
- * BLOCK, INLINE_BLOCK BLOCK, INLINE_CONTAINER, TABLE
- * INLINE_CONTAINER INLINE, INLINE_BLOCK, FLOAT_LEFT, FLOAT_RIGHT, BR, TEXT
+ * BLOCK, INLINE_BLOCK BLOCK, INLINE_CONTAINER, TABLE, FLEX
+ * FLEX, INLINE_FLEX BLOCK, INLINE_CONTAINER, TABLE, FLEX
+ * INLINE_CONTAINER INLINE, INLINE_BLOCK, FLOAT_LEFT, FLOAT_RIGHT, BR, TEXT, INLINE_FLEX
* INLINE, TEXT none
* TABLE at least 1 TABLE_ROW_GROUP
* TABLE_ROW_GROUP at least 1 TABLE_ROW
* TABLE_ROW at least 1 TABLE_CELL
- * TABLE_CELL BLOCK, INLINE_CONTAINER, TABLE (same as BLOCK)
- * FLOAT_(LEFT|RIGHT) exactly 1 BLOCK or TABLE
+ * TABLE_CELL BLOCK, INLINE_CONTAINER, TABLE, FLEX (same as BLOCK)
+ * FLOAT_(LEFT|RIGHT) exactly 1 BLOCK, TABLE or FLEX
* \endcode
*/
@@ -147,6 +322,11 @@ bool box_normalise_block(
next_child = child->next; /* child may be destroyed */
switch (child->type) {
+ case BOX_FLEX:
+ /* ok */
+ if (box_normalise_flex(child, root, c) == false)
+ return false;
+ break;
case BOX_BLOCK:
/* ok */
if (box_normalise_block(child, root, c) == false)
@@ -162,6 +342,7 @@ bool box_normalise_block(
break;
case BOX_INLINE:
case BOX_INLINE_END:
+ case BOX_INLINE_FLEX:
case BOX_INLINE_BLOCK:
case BOX_FLOAT_LEFT:
case BOX_FLOAT_RIGHT:
@@ -275,6 +456,7 @@ bool box_normalise_table(
return false;
}
break;
+ case BOX_FLEX:
case BOX_BLOCK:
case BOX_INLINE_CONTAINER:
case BOX_TABLE:
@@ -312,6 +494,7 @@ bool box_normalise_table(
row_group->prev = child->prev;
while (child != NULL && (
+ child->type == BOX_FLEX ||
child->type == BOX_BLOCK ||
child->type == BOX_INLINE_CONTAINER ||
child->type == BOX_TABLE ||
@@ -342,6 +525,7 @@ bool box_normalise_table(
break;
case BOX_INLINE:
case BOX_INLINE_END:
+ case BOX_INLINE_FLEX:
case BOX_INLINE_BLOCK:
case BOX_FLOAT_LEFT:
case BOX_FLOAT_RIGHT:
@@ -634,6 +818,7 @@ bool box_normalise_table_row_group(
c) == false)
return false;
break;
+ case BOX_FLEX:
case BOX_BLOCK:
case BOX_INLINE_CONTAINER:
case BOX_TABLE:
@@ -667,6 +852,7 @@ bool box_normalise_table_row_group(
row->prev = child->prev;
while (child != NULL && (
+ child->type == BOX_FLEX ||
child->type == BOX_BLOCK ||
child->type == BOX_INLINE_CONTAINER ||
child->type == BOX_TABLE ||
@@ -696,6 +882,7 @@ bool box_normalise_table_row_group(
break;
case BOX_INLINE:
case BOX_INLINE_END:
+ case BOX_INLINE_FLEX:
case BOX_INLINE_BLOCK:
case BOX_FLOAT_LEFT:
case BOX_FLOAT_RIGHT:
@@ -787,6 +974,7 @@ bool box_normalise_table_row(
return false;
cell = child;
break;
+ case BOX_FLEX:
case BOX_BLOCK:
case BOX_INLINE_CONTAINER:
case BOX_TABLE:
@@ -820,6 +1008,7 @@ bool box_normalise_table_row(
cell->prev = child->prev;
while (child != NULL && (
+ child->type == BOX_FLEX ||
child->type == BOX_BLOCK ||
child->type == BOX_INLINE_CONTAINER ||
child->type == BOX_TABLE ||
@@ -847,6 +1036,7 @@ bool box_normalise_table_row(
break;
case BOX_INLINE:
case BOX_INLINE_END:
+ case BOX_INLINE_FLEX:
case BOX_INLINE_BLOCK:
case BOX_FLOAT_LEFT:
case BOX_FLOAT_RIGHT:
@@ -994,6 +1184,11 @@ bool box_normalise_inline_container(
if (box_normalise_block(child, root, c) == false)
return false;
break;
+ case BOX_INLINE_FLEX:
+ /* ok */
+ if (box_normalise_flex(child, root, c) == false)
+ return false;
+ break;
case BOX_FLOAT_LEFT:
case BOX_FLOAT_RIGHT:
/* ok */
@@ -1028,6 +1223,7 @@ bool box_normalise_inline_container(
box_free(child);
}
break;
+ case BOX_FLEX:
case BOX_BLOCK:
case BOX_INLINE_CONTAINER:
case BOX_TABLE:
generated by cgit v1.2.1 (git 2.18.0) at 2021-02-28 22:02:43 +0000