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https://github.com/LadybirdBrowser/ladybird.git
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f0349323c4
The Node API was obnoxiously requiring you to pass the model into it all the time, simply because nodes could not find their way back to the containing model. This patch adds a back-reference to the model and simplifies the API.
351 lines
13 KiB
C++
351 lines
13 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <AK/Function.h>
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#include <AK/LexicalPath.h>
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#include <LibCore/StandardPaths.h>
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#include <LibGUI/Action.h>
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#include <LibGUI/BoxLayout.h>
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#include <LibGUI/Button.h>
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#include <LibGUI/FilePicker.h>
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#include <LibGUI/FileSystemModel.h>
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#include <LibGUI/InputBox.h>
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#include <LibGUI/Label.h>
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#include <LibGUI/MessageBox.h>
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#include <LibGUI/MultiView.h>
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#include <LibGUI/SortingProxyModel.h>
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#include <LibGUI/TextBox.h>
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#include <LibGUI/ToolBar.h>
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#include <string.h>
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namespace GUI {
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Optional<String> FilePicker::get_open_filepath(Window* parent_window, const String& window_title, Options options)
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{
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auto picker = FilePicker::construct(parent_window, Mode::Open, options);
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if (!window_title.is_null())
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picker->set_title(window_title);
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if (picker->exec() == Dialog::ExecOK) {
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String file_path = picker->selected_file().string();
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if (file_path.is_null())
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return {};
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return file_path;
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}
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return {};
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}
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Optional<String> FilePicker::get_save_filepath(Window* parent_window, const String& title, const String& extension, Options options)
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{
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auto picker = FilePicker::construct(parent_window, Mode::Save, options, String::format("%s.%s", title.characters(), extension.characters()));
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if (picker->exec() == Dialog::ExecOK) {
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String file_path = picker->selected_file().string();
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if (file_path.is_null())
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return {};
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return file_path;
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}
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return {};
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}
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FilePicker::FilePicker(Window* parent_window, Mode mode, Options options, const StringView& file_name, const StringView& path)
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: Dialog(parent_window)
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, m_model(FileSystemModel::create())
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, m_mode(mode)
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{
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switch (m_mode) {
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case Mode::Open:
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set_title("Open File");
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break;
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case Mode::OpenMultiple:
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set_title("Open Files");
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break;
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case Mode::Save:
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set_title("Save File");
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break;
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}
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set_title(m_mode == Mode::Open ? "Open File" : "Save File");
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set_rect(200, 200, 700, 400);
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auto& horizontal_container = set_main_widget<Widget>();
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horizontal_container.set_layout<HorizontalBoxLayout>();
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horizontal_container.layout()->set_margins({ 4, 4, 4, 4 });
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horizontal_container.set_fill_with_background_color(true);
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auto& vertical_container = horizontal_container.add<Widget>();
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vertical_container.set_layout<VerticalBoxLayout>();
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vertical_container.layout()->set_spacing(4);
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auto& upper_container = vertical_container.add<Widget>();
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upper_container.set_layout<HorizontalBoxLayout>();
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upper_container.layout()->set_spacing(2);
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upper_container.set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
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upper_container.set_preferred_size(0, 26);
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auto& toolbar = upper_container.add<ToolBar>();
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toolbar.set_size_policy(SizePolicy::Fixed, SizePolicy::Fill);
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toolbar.set_preferred_size(165, 0);
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toolbar.set_has_frame(false);
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m_location_textbox = upper_container.add<TextBox>();
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m_location_textbox->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
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m_location_textbox->set_preferred_size(0, 22);
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m_location_textbox->set_text(path);
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m_view = vertical_container.add<MultiView>();
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m_view->set_multi_select(m_mode == Mode::OpenMultiple);
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m_view->set_model(SortingProxyModel::create(*m_model));
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m_view->set_model_column(FileSystemModel::Column::Name);
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m_view->set_key_column_and_sort_order(GUI::FileSystemModel::Column::Name, GUI::SortOrder::Ascending);
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m_view->set_column_hidden(FileSystemModel::Column::Owner, true);
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m_view->set_column_hidden(FileSystemModel::Column::Group, true);
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m_view->set_column_hidden(FileSystemModel::Column::Permissions, true);
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m_view->set_column_hidden(FileSystemModel::Column::Inode, true);
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m_view->set_column_hidden(FileSystemModel::Column::SymlinkTarget, true);
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set_path(path);
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m_model->register_client(*this);
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m_location_textbox->on_return_pressed = [this] {
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set_path(m_location_textbox->text());
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};
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auto open_parent_directory_action = Action::create("Open parent directory", { Mod_Alt, Key_Up }, Gfx::Bitmap::load_from_file("/res/icons/16x16/open-parent-directory.png"), [this](const Action&) {
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set_path(String::format("%s/..", m_model->root_path().characters()));
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});
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toolbar.add_action(*open_parent_directory_action);
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auto go_home_action = CommonActions::make_go_home_action([this](auto&) {
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set_path(Core::StandardPaths::home_directory());
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});
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toolbar.add_action(go_home_action);
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toolbar.add_separator();
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auto mkdir_action = Action::create("New directory...", Gfx::Bitmap::load_from_file("/res/icons/16x16/mkdir.png"), [this](const Action&) {
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String value;
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if (InputBox::show(value, this, "Enter name:", "New directory") == InputBox::ExecOK && !value.is_empty()) {
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auto new_dir_path = LexicalPath(String::format("%s/%s",
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m_model->root_path().characters(),
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value.characters()))
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.string();
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int rc = mkdir(new_dir_path.characters(), 0777);
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if (rc < 0) {
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MessageBox::show(this, String::format("mkdir(\"%s\") failed: %s", new_dir_path.characters(), strerror(errno)), "Error", MessageBox::Type::Error);
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} else {
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m_model->update();
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}
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}
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});
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toolbar.add_action(*mkdir_action);
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toolbar.add_separator();
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toolbar.add_action(m_view->view_as_icons_action());
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toolbar.add_action(m_view->view_as_table_action());
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toolbar.add_action(m_view->view_as_columns_action());
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auto& lower_container = vertical_container.add<Widget>();
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lower_container.set_layout<VerticalBoxLayout>();
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lower_container.layout()->set_spacing(4);
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lower_container.set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
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lower_container.set_preferred_size(0, 45);
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auto& filename_container = lower_container.add<Widget>();
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filename_container.set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
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filename_container.set_preferred_size(0, 20);
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filename_container.set_layout<HorizontalBoxLayout>();
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auto& filename_label = filename_container.add<Label>("File name:");
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filename_label.set_text_alignment(Gfx::TextAlignment::CenterLeft);
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filename_label.set_size_policy(SizePolicy::Fixed, SizePolicy::Fill);
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filename_label.set_preferred_size(60, 0);
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m_filename_textbox = filename_container.add<TextBox>();
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if (m_mode == Mode::Save) {
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m_filename_textbox->set_text(file_name);
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m_filename_textbox->set_focus(true);
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m_filename_textbox->select_all();
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}
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m_filename_textbox->on_return_pressed = [&] {
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on_file_return();
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};
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m_view->on_selection_change = [this] {
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auto index = m_view->selection().first();
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auto& filter_model = (SortingProxyModel&)*m_view->model();
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auto local_index = filter_model.map_to_source(index);
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const FileSystemModel::Node& node = m_model->node(local_index);
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LexicalPath path { node.full_path() };
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if (have_preview())
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clear_preview();
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if (!node.is_directory())
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m_filename_textbox->set_text(node.name);
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if (have_preview())
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set_preview(path);
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};
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auto& button_container = lower_container.add<Widget>();
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button_container.set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
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button_container.set_preferred_size(0, 20);
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button_container.set_layout<HorizontalBoxLayout>();
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button_container.layout()->set_spacing(4);
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button_container.layout()->add_spacer();
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auto& cancel_button = button_container.add<Button>();
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cancel_button.set_size_policy(SizePolicy::Fixed, SizePolicy::Fill);
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cancel_button.set_preferred_size(80, 0);
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cancel_button.set_text("Cancel");
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cancel_button.on_click = [this](auto) {
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done(ExecCancel);
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};
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auto& ok_button = button_container.add<Button>();
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ok_button.set_size_policy(SizePolicy::Fixed, SizePolicy::Fill);
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ok_button.set_preferred_size(80, 0);
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ok_button.set_text(ok_button_name(m_mode));
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ok_button.on_click = [this](auto) {
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on_file_return();
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};
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m_view->on_activation = [this](auto& index) {
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auto& filter_model = (SortingProxyModel&)*m_view->model();
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auto local_index = filter_model.map_to_source(index);
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const FileSystemModel::Node& node = m_model->node(local_index);
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auto path = node.full_path();
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if (node.is_directory()) {
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set_path(path);
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// NOTE: 'node' is invalid from here on
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} else {
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on_file_return();
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}
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};
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if (!((unsigned)options & (unsigned)Options::DisablePreview)) {
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m_preview_container = horizontal_container.add<Frame>();
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m_preview_container->set_visible(false);
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m_preview_container->set_size_policy(SizePolicy::Fixed, SizePolicy::Fill);
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m_preview_container->set_preferred_size(180, 0);
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m_preview_container->set_layout<VerticalBoxLayout>();
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m_preview_container->layout()->set_margins({ 8, 8, 8, 8 });
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m_preview_image = m_preview_container->add<ImageWidget>();
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m_preview_image->set_should_stretch(true);
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m_preview_image->set_auto_resize(false);
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m_preview_image->set_preferred_size(160, 160);
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m_preview_name_label = m_preview_container->add<Label>();
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m_preview_name_label->set_font(Gfx::Font::default_bold_font());
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m_preview_name_label->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
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m_preview_name_label->set_preferred_size(0, m_preview_name_label->font().glyph_height());
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m_preview_geometry_label = m_preview_container->add<Label>();
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m_preview_geometry_label->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
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m_preview_geometry_label->set_preferred_size(0, m_preview_name_label->font().glyph_height());
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}
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}
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FilePicker::~FilePicker()
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{
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m_model->unregister_client(*this);
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}
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void FilePicker::model_did_update(unsigned)
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{
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m_location_textbox->set_text(m_model->root_path());
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if (have_preview())
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clear_preview();
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}
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void FilePicker::set_preview(const LexicalPath& path)
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{
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if (Gfx::Bitmap::is_path_a_supported_image_format(path.string())) {
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auto bitmap = Gfx::Bitmap::load_from_file(path.string());
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if (!bitmap) {
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clear_preview();
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return;
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}
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bool should_stretch = bitmap->width() > m_preview_image->width() || bitmap->height() > m_preview_image->height();
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m_preview_name_label->set_text(path.basename());
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m_preview_geometry_label->set_text(bitmap->size().to_string());
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m_preview_image->set_should_stretch(should_stretch);
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m_preview_image->set_bitmap(move(bitmap));
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m_preview_container->set_visible(true);
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}
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}
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void FilePicker::clear_preview()
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{
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m_preview_image->set_bitmap(nullptr);
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m_preview_name_label->set_text(String::empty());
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m_preview_geometry_label->set_text(String::empty());
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m_preview_container->set_visible(false);
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}
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void FilePicker::on_file_return()
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{
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LexicalPath path(String::format("%s/%s", m_model->root_path().characters(), m_filename_textbox->text().characters()));
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if (FilePicker::file_exists(path.string()) && m_mode == Mode::Save) {
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auto result = MessageBox::show(this, "File already exists, overwrite?", "Existing File", MessageBox::Type::Warning, MessageBox::InputType::OKCancel);
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if (result == MessageBox::ExecCancel)
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return;
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}
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m_selected_file = path;
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done(ExecOK);
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}
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bool FilePicker::file_exists(const StringView& path)
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{
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struct stat st;
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int rc = stat(path.to_string().characters(), &st);
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if (rc < 0) {
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if (errno == ENOENT)
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return false;
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}
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if (rc == 0) {
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return true;
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}
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return false;
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}
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void FilePicker::set_path(const String& path)
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{
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if (path == Core::StandardPaths::home_directory())
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m_location_textbox->set_icon(Gfx::Bitmap::load_from_file("/res/icons/16x16/home-directory.png"));
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else
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m_location_textbox->set_icon(Gfx::Bitmap::load_from_file("/res/icons/16x16/filetype-folder.png"));
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m_model->set_root_path(path);
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}
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}
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