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https://github.com/LadybirdBrowser/ladybird.git
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6f4c380d95
Using int was a mistake. This patch changes String, StringImpl, StringView and StringBuilder to use size_t instead of int for lengths. Obviously a lot of code needs to change as a result of this.
112 lines
3.4 KiB
C++
112 lines
3.4 KiB
C++
#include "DOMTreeModel.h"
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#include <AK/StringBuilder.h>
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#include <LibHTML/DOM/Document.h>
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#include <LibHTML/DOM/Text.h>
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#include <ctype.h>
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#include <stdio.h>
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DOMTreeModel::DOMTreeModel(Document& document)
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: m_document(document)
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{
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m_document_icon.set_bitmap_for_size(16, GraphicsBitmap::load_from_file("/res/icons/16x16/filetype-html.png"));
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m_element_icon.set_bitmap_for_size(16, GraphicsBitmap::load_from_file("/res/icons/16x16/inspector-object.png"));
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m_text_icon.set_bitmap_for_size(16, GraphicsBitmap::load_from_file("/res/icons/16x16/filetype-unknown.png"));
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}
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DOMTreeModel::~DOMTreeModel()
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{
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}
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GModelIndex DOMTreeModel::index(int row, int column, const GModelIndex& parent) const
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{
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if (!parent.is_valid()) {
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return create_index(row, column, m_document.ptr());
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}
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auto& parent_node = *static_cast<Node*>(parent.internal_data());
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return create_index(row, column, parent_node.child_at_index(row));
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}
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GModelIndex DOMTreeModel::parent_index(const GModelIndex& index) const
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{
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if (!index.is_valid())
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return {};
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auto& node = *static_cast<Node*>(index.internal_data());
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if (!node.parent())
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return {};
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// No grandparent? Parent is the document!
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if (!node.parent()->parent()) {
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return create_index(0, 0, m_document.ptr());
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}
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// Walk the grandparent's children to find the index of node's parent in its parent.
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// (This is needed to produce the row number of the GModelIndex corresponding to node's parent.)
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int grandparent_child_index = 0;
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for (auto* grandparent_child = node.parent()->parent()->first_child(); grandparent_child; grandparent_child = grandparent_child->next_sibling()) {
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if (grandparent_child == node.parent())
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return create_index(grandparent_child_index, 0, node.parent());
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++grandparent_child_index;
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}
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ASSERT_NOT_REACHED();
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return {};
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}
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int DOMTreeModel::row_count(const GModelIndex& index) const
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{
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if (!index.is_valid())
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return 1;
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auto& node = *static_cast<Node*>(index.internal_data());
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return node.child_count();
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}
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int DOMTreeModel::column_count(const GModelIndex&) const
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{
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return 1;
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}
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static String with_whitespace_collapsed(const StringView& string)
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{
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StringBuilder builder;
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for (size_t i = 0; i < string.length(); ++i) {
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if (isspace(string[i])) {
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builder.append(' ');
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while (i < string.length()) {
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if (isspace(string[i])) {
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++i;
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continue;
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}
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builder.append(string[i]);
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break;
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}
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continue;
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}
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builder.append(string[i]);
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}
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return builder.to_string();
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}
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GVariant DOMTreeModel::data(const GModelIndex& index, Role role) const
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{
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auto* node = static_cast<Node*>(index.internal_data());
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if (role == Role::Icon) {
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if (node->is_document())
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return m_document_icon;
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if (node->is_element())
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return m_element_icon;
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// FIXME: More node type icons?
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return m_text_icon;
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}
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if (role == Role::Display) {
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if (node->is_text()) {
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return String::format("%s", with_whitespace_collapsed(to<Text>(*node).data()).characters());
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}
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return String::format("<%s>", node->tag_name().characters());
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}
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return {};
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}
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void DOMTreeModel::update()
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{
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did_update();
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}
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