void t2HTMLParser::parse()
{
if(!bLoaded)
t2PrintError("html文件未被加载, 无法解析");
parser->parse(html.c_str());
// --!设计失误 拷贝css地址
for(auto p : parser->cssFilePaths)
cssFilePaths.push_back(p);
}
void t2HTMLParser::t2LabelParser::parse(const char* html)
{
GumboOutput* output = gumbo_parse(html);
GumboNode *root = output->root;
if(root->type != GUMBO_NODE_ELEMENT)
{
t2PrintError("html格式有误");
return;
}
// find head
GumboVector *rootChildren = &root->v.element.children;
GumboNode *h = NULL, *b = NULL;
for(int i = 0; i < rootChildren->length; i++)
{
GumboNode *child = (GumboNode *) rootChildren->data[i];
if(child->type == GUMBO_NODE_ELEMENT && child->v.element.tag == GUMBO_TAG_HEAD)
h = child;
else if(child->type == GUMBO_NODE_ELEMENT && child->v.element.tag == GUMBO_TAG_BODY)
b = child;
}
if(!h)
{
t2PrintError("html文件缺少<head>标签");
return;
}
head(h);
// find body
if(!b)
{
t2PrintError("html文件缺少<body>标签");
return;
}
body(b);
gumbo_destroy_output(&kGumboDefaultOptions, output);
}
void t2HTMLParser::t2LabelParser::head(GumboNode *h)
{
GumboVector *headChildren = &h->v.element.children;
for(int i = 0; i < headChildren->length; i++)
{
GumboNode *child = (GumboNode *) headChildren->data[i];
// find title
if(child->type == GUMBO_NODE_ELEMENT && child->v.element.tag == GUMBO_TAG_TITLE)
{
if(child->v.element.children.length != 1)
{
t2PrintError("<empty title>");
return;
}
// title无子节点
GumboNode *title = (GumboNode *) child->v.element.children.data[0];
if(title->type != GUMBO_NODE_TEXT && title->type != GUMBO_NODE_WHITESPACE)
{
t2PrintError("标题只可为空或文字");
return;
}
t2Window::getInstance()->window->setTitle(title->v.text.text);
}
// find css file
else if(child->type == GUMBO_NODE_ELEMENT && child->v.element.tag == GUMBO_TAG_LINK)
{
GumboAttribute *href = gumbo_get_attribute(&child->v.element.attributes, "href");
if(!href)
t2PrintError("<link>缺失href属性");
cssFilePaths.push_back(href->value);
}
}
}
bool t2Image::loadImage(string path)
{
img = nvgCreateImage(t2GetContext(), path.c_str(), 0);
if(!img)
{
bLoaded = false;
t2PrintError("图片读取失败,可能是路径有误");
return false;
}
else
{
bLoaded = true;
nvgImageSize(t2GetContext(), img, &width, &height);
return true;
}
}
void t2LayoutController::updateDiv(t2Div* div, bool bCondition)
{
if(div->parent)
{
switch(div->parent->layout)
{
case T2_LINEAR_LAYOUT:
linearLayout(div, bCondition);
break;
case T2_LIST_LAYOUT:
listLayout(div, bCondition);
break;
default:
t2PrintError("错误布局代码");
break;
}
}
// 根节点默认为线性布局
else
linearLayout(div);
}
