RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-31 09:38:11 +00:00
Code Issues Activity Actions

LibWeb: Clamp text fragment selection to the fragment

Browse source 
Also add 1px of width to partial fragment selections, since that ends
up looking nicer during interactive mouse selection.
This commit is contained in:
Andreas Kling 2020-06-29 12:43:45 +02:00
parent 12cbc4ad0d
commit 53573f6fb1
1 changed files with 14 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

24
Libraries/LibWeb/Layout/LineBoxFragment.cpp
View file

@ -85,6 +85,9 @@ int LineBoxFragment::text_index_at(float x) const
float relative_x = x - absolute_x();
float glyph_spacing = font.glyph_spacing();
if (relative_x < 0)
return 0;
float width_so_far = 0;
for (auto it = view.begin(); it != view.end(); ++it) {
float glyph_width = font.glyph_or_emoji_width(*it);
@ -105,6 +108,7 @@ Gfx::FloatRect LineBoxFragment::selection_rect(const Gfx::Font& font) const
const auto start_index = m_start;
const auto end_index = m_start + m_length;
auto text = this->text();
if (&layout_node() == selection.start().layout_node && &layout_node() == selection.end().layout_node) {
// we are in the start/end node (both the same)
@ -113,10 +117,10 @@ Gfx::FloatRect LineBoxFragment::selection_rect(const Gfx::Font& font) const
if (end_index < selection.start().index_in_node)
return {};
auto selection_start_in_this_fragment = selection.start().index_in_node - m_start;
auto selection_end_in_this_fragment = selection.end().index_in_node - m_start + 1;
auto pixel_distance_to_first_selected_character = font.width(text().substring_view(0, selection_start_in_this_fragment));
auto pixel_width_of_selection = font.width(text().substring_view(selection_start_in_this_fragment, selection_end_in_this_fragment - selection_start_in_this_fragment));
auto selection_start_in_this_fragment = max(0, selection.start().index_in_node - m_start);
auto selection_end_in_this_fragment = min(m_length, selection.end().index_in_node - m_start + 1);
auto pixel_distance_to_first_selected_character = font.width(text.substring_view(0, selection_start_in_this_fragment));
auto pixel_width_of_selection = font.width(text.substring_view(selection_start_in_this_fragment, selection_end_in_this_fragment - selection_start_in_this_fragment)) + 1;
auto rect = absolute_rect();
rect.set_x(rect.x() + pixel_distance_to_first_selected_character);
@ -129,10 +133,10 @@ Gfx::FloatRect LineBoxFragment::selection_rect(const Gfx::Font& font) const
if (end_index < selection.start().index_in_node)
return {};
auto selection_start_in_this_fragment = selection.start().index_in_node - m_start;
auto selection_start_in_this_fragment = max(0, selection.start().index_in_node - m_start);
auto selection_end_in_this_fragment = m_length;
auto pixel_distance_to_first_selected_character = font.width(text().substring_view(0, selection_start_in_this_fragment));
auto pixel_width_of_selection = font.width(text().substring_view(selection_start_in_this_fragment, selection_end_in_this_fragment - selection_start_in_this_fragment));
auto pixel_distance_to_first_selected_character = font.width(text.substring_view(0, selection_start_in_this_fragment));
auto pixel_width_of_selection = font.width(text.substring_view(selection_start_in_this_fragment, selection_end_in_this_fragment - selection_start_in_this_fragment)) + 1;
auto rect = absolute_rect();
rect.set_x(rect.x() + pixel_distance_to_first_selected_character);
@ -146,9 +150,9 @@ Gfx::FloatRect LineBoxFragment::selection_rect(const Gfx::Font& font) const
return {};
auto selection_start_in_this_fragment = 0;
auto selection_end_in_this_fragment = selection.end().index_in_node + 1;
auto pixel_distance_to_first_selected_character = font.width(text().substring_view(0, selection_start_in_this_fragment));
auto pixel_width_of_selection = font.width(text().substring_view(selection_start_in_this_fragment, selection_end_in_this_fragment - selection_start_in_this_fragment));
auto selection_end_in_this_fragment = min(selection.end().index_in_node + 1, m_length);
auto pixel_distance_to_first_selected_character = font.width(text.substring_view(0, selection_start_in_this_fragment));
auto pixel_width_of_selection = font.width(text.substring_view(selection_start_in_this_fragment, selection_end_in_this_fragment - selection_start_in_this_fragment)) + 1;
auto rect = absolute_rect();
rect.set_x(rect.x() + pixel_distance_to_first_selected_character);