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PDFViewer: Inform about selections on Outline view

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Selecting an Outline Item from the Outline view informs via callback the
corresponding Destination that has been selected. This will be used to
move the application to the corresponding page/section/etc.
This commit is contained in:
Rodrigo Tobar 2022-12-17 20:36:54 +08:00 committed by Andreas Kling
parent aaa210e6db
commit d739877807
4 changed files with 21 additions and 0 deletions
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7
Userland/Applications/PDFViewer/OutlineModel.cpp
View file

@ -10,6 +10,7 @@
#include <LibGUI/ModelRole.h>
#include <LibGfx/Font/FontDatabase.h>
#include <LibGfx/TextAlignment.h>
#include <LibPDF/Document.h>
enum Columns {
Page,
@ -60,6 +61,12 @@ int OutlineModel::column_count(const GUI::ModelIndex&) const
return Columns::_Count;
}
PDF::Destination const& OutlineModel::get_destination(GUI::ModelIndex const& index)
{
auto* outline_item = static_cast<PDF::OutlineItem*>(index.internal_data());
return outline_item->dest;
}
GUI::Variant OutlineModel::data(const GUI::ModelIndex& index, GUI::ModelRole role) const
{
VERIFY(index.is_valid());

2
Userland/Applications/PDFViewer/OutlineModel.h
View file

@ -23,6 +23,8 @@ public:
virtual GUI::ModelIndex parent_index(const GUI::ModelIndex&) const override;
virtual GUI::ModelIndex index(int row, int column, const GUI::ModelIndex&) const override;
static PDF::Destination const& get_destination(GUI::ModelIndex const&);
private:
OutlineModel(NonnullRefPtr<PDF::OutlineDict> const& outline);

8
Userland/Applications/PDFViewer/SidebarWidget.cpp
View file

@ -5,6 +5,7 @@
*/
#include "SidebarWidget.h"
#include "OutlineModel.h"
#include <LibGUI/BoxLayout.h>
#include <LibGUI/TabWidget.h>
@ -24,6 +25,13 @@ SidebarWidget::SidebarWidget()
m_outline_tree_view->set_activates_on_selection(true);
m_outline_tree_view->set_should_fill_selected_rows(true);
m_outline_tree_view->set_selection_behavior(GUI::AbstractView::SelectionBehavior::SelectRows);
m_outline_tree_view->on_selection_change = [this]() {
auto& selection = m_outline_tree_view->selection();
if (selection.is_empty())
return;
auto destination = OutlineModel::get_destination(selection.first());
on_destination_selected(destination);
};
auto& thumbnails_container = tab_bar.add_tab<GUI::Widget>("Thumbnails");
thumbnails_container.set_layout<GUI::VerticalBoxLayout>();

4
Userland/Applications/PDFViewer/SidebarWidget.h
View file

@ -6,6 +6,8 @@
#pragma once
#include "LibGUI/ModelIndex.h"
#include "LibPDF/Document.h"
#include "OutlineModel.h"
#include <LibGUI/TreeView.h>
#include <LibGUI/Widget.h>
@ -16,6 +18,8 @@ class SidebarWidget final : public GUI::Widget {
public:
~SidebarWidget() override = default;
Function<void(PDF::Destination const&)> on_destination_selected;
ErrorOr<void> set_outline(RefPtr<PDF::OutlineDict> outline)
{
if (outline) {