godot/editor/editor_help_search.cpp
Rémi Verschelde a7f49ac9a1 Update copyright statements to 2020
Happy new year to the wonderful Godot community!

We're starting a new decade with a well-established, non-profit, free
and open source game engine, and tons of further improvements in the
pipeline from hundreds of contributors.

Godot will keep getting better, and we're looking forward to all the
games that the community will keep developing and releasing with it.
2020-01-01 11:16:22 +01:00

609 lines
21 KiB
C++

/*************************************************************************/
/* editor_help_search.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "editor_help_search.h"
#include "core/os/keyboard.h"
#include "editor_feature_profile.h"
#include "editor_node.h"
#include "editor_scale.h"
void EditorHelpSearch::_update_icons() {
search_box->set_right_icon(get_icon("Search", "EditorIcons"));
search_box->set_clear_button_enabled(true);
search_box->add_icon_override("right_icon", get_icon("Search", "EditorIcons"));
case_sensitive_button->set_icon(get_icon("MatchCase", "EditorIcons"));
hierarchy_button->set_icon(get_icon("ClassList", "EditorIcons"));
if (is_visible_in_tree())
_update_results();
}
void EditorHelpSearch::_update_results() {
String term = search_box->get_text();
int search_flags = filter_combo->get_selected_id();
if (case_sensitive_button->is_pressed())
search_flags |= SEARCH_CASE_SENSITIVE;
if (hierarchy_button->is_pressed())
search_flags |= SEARCH_SHOW_HIERARCHY;
search = Ref<Runner>(memnew(Runner(this, results_tree, term, search_flags)));
set_process(true);
}
void EditorHelpSearch::_search_box_gui_input(const Ref<InputEvent> &p_event) {
// Redirect up and down navigational key events to the results list.
Ref<InputEventKey> key = p_event;
if (key.is_valid()) {
switch (key->get_scancode()) {
case KEY_UP:
case KEY_DOWN:
case KEY_PAGEUP:
case KEY_PAGEDOWN: {
results_tree->call("_gui_input", key);
search_box->accept_event();
} break;
}
}
}
void EditorHelpSearch::_search_box_text_changed(const String &p_text) {
_update_results();
}
void EditorHelpSearch::_filter_combo_item_selected(int p_option) {
_update_results();
}
void EditorHelpSearch::_confirmed() {
TreeItem *item = results_tree->get_selected();
if (!item)
return;
// Activate the script editor and emit the signal with the documentation link to display.
EditorNode::get_singleton()->set_visible_editor(EditorNode::EDITOR_SCRIPT);
emit_signal("go_to_help", item->get_metadata(0));
hide();
}
void EditorHelpSearch::_notification(int p_what) {
switch (p_what) {
case EditorSettings::NOTIFICATION_EDITOR_SETTINGS_CHANGED: {
_update_icons();
} break;
case NOTIFICATION_ENTER_TREE: {
connect("confirmed", this, "_confirmed");
_update_icons();
} break;
case NOTIFICATION_POPUP_HIDE: {
results_tree->call_deferred("clear"); // Wait for the Tree's mouse event propagation.
get_ok()->set_disabled(true);
EditorSettings::get_singleton()->set_project_metadata("dialog_bounds", "search_help", get_rect());
} break;
case NOTIFICATION_PROCESS: {
// Update background search.
if (search.is_valid()) {
if (search->work()) {
// Search done.
// Only point to the perfect match if it's a new search, and not just reopening a old one.
if (!old_search)
results_tree->ensure_cursor_is_visible();
else
old_search = false;
get_ok()->set_disabled(!results_tree->get_selected());
search = Ref<Runner>();
set_process(false);
}
} else {
set_process(false);
}
} break;
}
}
void EditorHelpSearch::_bind_methods() {
ClassDB::bind_method(D_METHOD("_update_results"), &EditorHelpSearch::_update_results);
ClassDB::bind_method(D_METHOD("_search_box_gui_input"), &EditorHelpSearch::_search_box_gui_input);
ClassDB::bind_method(D_METHOD("_search_box_text_changed"), &EditorHelpSearch::_search_box_text_changed);
ClassDB::bind_method(D_METHOD("_filter_combo_item_selected"), &EditorHelpSearch::_filter_combo_item_selected);
ClassDB::bind_method(D_METHOD("_confirmed"), &EditorHelpSearch::_confirmed);
ADD_SIGNAL(MethodInfo("go_to_help"));
}
void EditorHelpSearch::popup_dialog() {
popup_dialog(search_box->get_text());
}
void EditorHelpSearch::popup_dialog(const String &p_term) {
// Restore valid window bounds or pop up at default size.
Rect2 saved_size = EditorSettings::get_singleton()->get_project_metadata("dialog_bounds", "search_help", Rect2());
if (saved_size != Rect2())
popup(saved_size);
else
popup_centered_ratio(0.5F);
if (p_term == "") {
search_box->clear();
} else {
if (old_term == p_term)
old_search = true;
else
old_term = p_term;
search_box->set_text(p_term);
search_box->select_all();
}
search_box->grab_focus();
_update_results();
}
EditorHelpSearch::EditorHelpSearch() {
old_search = false;
set_hide_on_ok(false);
set_resizable(true);
set_title(TTR("Search Help"));
get_ok()->set_disabled(true);
get_ok()->set_text(TTR("Open"));
// Split search and results area.
VBoxContainer *vbox = memnew(VBoxContainer);
add_child(vbox);
// Create the search box and filter controls (at the top).
HBoxContainer *hbox = memnew(HBoxContainer);
vbox->add_child(hbox);
search_box = memnew(LineEdit);
search_box->set_custom_minimum_size(Size2(200, 0) * EDSCALE);
search_box->set_h_size_flags(SIZE_EXPAND_FILL);
search_box->connect("gui_input", this, "_search_box_gui_input");
search_box->connect("text_changed", this, "_search_box_text_changed");
register_text_enter(search_box);
hbox->add_child(search_box);
case_sensitive_button = memnew(ToolButton);
case_sensitive_button->set_tooltip(TTR("Case Sensitive"));
case_sensitive_button->connect("pressed", this, "_update_results");
case_sensitive_button->set_toggle_mode(true);
case_sensitive_button->set_focus_mode(FOCUS_NONE);
hbox->add_child(case_sensitive_button);
hierarchy_button = memnew(ToolButton);
hierarchy_button->set_tooltip(TTR("Show Hierarchy"));
hierarchy_button->connect("pressed", this, "_update_results");
hierarchy_button->set_toggle_mode(true);
hierarchy_button->set_pressed(true);
hierarchy_button->set_focus_mode(FOCUS_NONE);
hbox->add_child(hierarchy_button);
filter_combo = memnew(OptionButton);
filter_combo->set_custom_minimum_size(Size2(200, 0) * EDSCALE);
filter_combo->set_stretch_ratio(0); // Fixed width.
filter_combo->add_item(TTR("Display All"), SEARCH_ALL);
filter_combo->add_separator();
filter_combo->add_item(TTR("Classes Only"), SEARCH_CLASSES);
filter_combo->add_item(TTR("Methods Only"), SEARCH_METHODS);
filter_combo->add_item(TTR("Signals Only"), SEARCH_SIGNALS);
filter_combo->add_item(TTR("Constants Only"), SEARCH_CONSTANTS);
filter_combo->add_item(TTR("Properties Only"), SEARCH_PROPERTIES);
filter_combo->add_item(TTR("Theme Properties Only"), SEARCH_THEME_ITEMS);
filter_combo->connect("item_selected", this, "_filter_combo_item_selected");
hbox->add_child(filter_combo);
// Create the results tree.
results_tree = memnew(Tree);
results_tree->set_v_size_flags(SIZE_EXPAND_FILL);
results_tree->set_columns(2);
results_tree->set_column_title(0, TTR("Name"));
results_tree->set_column_title(1, TTR("Member Type"));
results_tree->set_column_expand(1, false);
results_tree->set_column_min_width(1, 150 * EDSCALE);
results_tree->set_custom_minimum_size(Size2(0, 100) * EDSCALE);
results_tree->set_hide_root(true);
results_tree->set_select_mode(Tree::SELECT_ROW);
results_tree->connect("item_activated", this, "_confirmed");
results_tree->connect("item_selected", get_ok(), "set_disabled", varray(false));
vbox->add_child(results_tree, true);
}
bool EditorHelpSearch::Runner::_is_class_disabled_by_feature_profile(const StringName &p_class) {
Ref<EditorFeatureProfile> profile = EditorFeatureProfileManager::get_singleton()->get_current_profile();
if (profile.is_null()) {
return false;
}
StringName class_name = p_class;
while (class_name != StringName()) {
if (!ClassDB::class_exists(class_name)) {
return false;
}
if (profile->is_class_disabled(class_name)) {
return true;
}
class_name = ClassDB::get_parent_class(class_name);
}
return false;
}
bool EditorHelpSearch::Runner::_slice() {
bool phase_done = false;
switch (phase) {
case PHASE_MATCH_CLASSES_INIT:
phase_done = _phase_match_classes_init();
break;
case PHASE_MATCH_CLASSES:
phase_done = _phase_match_classes();
break;
case PHASE_CLASS_ITEMS_INIT:
phase_done = _phase_class_items_init();
break;
case PHASE_CLASS_ITEMS:
phase_done = _phase_class_items();
break;
case PHASE_MEMBER_ITEMS_INIT:
phase_done = _phase_member_items_init();
break;
case PHASE_MEMBER_ITEMS:
phase_done = _phase_member_items();
break;
case PHASE_SELECT_MATCH:
phase_done = _phase_select_match();
break;
case PHASE_MAX:
return true;
default:
WARN_PRINTS("Invalid or unhandled phase in EditorHelpSearch::Runner, aborting search.");
return true;
};
if (phase_done)
phase++;
return false;
}
bool EditorHelpSearch::Runner::_phase_match_classes_init() {
iterator_doc = EditorHelp::get_doc_data()->class_list.front();
matches.clear();
matched_item = NULL;
return true;
}
bool EditorHelpSearch::Runner::_phase_match_classes() {
DocData::ClassDoc &class_doc = iterator_doc->value();
if (!_is_class_disabled_by_feature_profile(class_doc.name)) {
matches[class_doc.name] = ClassMatch();
ClassMatch &match = matches[class_doc.name];
match.doc = &class_doc;
// Match class name.
if (search_flags & SEARCH_CLASSES)
match.name = term == "" || _match_string(term, class_doc.name);
// Match members if the term is long enough.
if (term.length() > 1) {
if (search_flags & SEARCH_METHODS)
for (int i = 0; i < class_doc.methods.size(); i++) {
String method_name = (search_flags & SEARCH_CASE_SENSITIVE) ? class_doc.methods[i].name : class_doc.methods[i].name.to_lower();
String aux_term = (search_flags & SEARCH_CASE_SENSITIVE) ? term : term.to_lower();
if (aux_term.begins_with("."))
aux_term = aux_term.right(1);
if (aux_term.ends_with("("))
aux_term = aux_term.left(aux_term.length() - 1).strip_edges();
if (aux_term.is_subsequence_of(method_name))
match.methods.push_back(const_cast<DocData::MethodDoc *>(&class_doc.methods[i]));
}
if (search_flags & SEARCH_SIGNALS)
for (int i = 0; i < class_doc.signals.size(); i++)
if (_match_string(term, class_doc.signals[i].name))
match.signals.push_back(const_cast<DocData::MethodDoc *>(&class_doc.signals[i]));
if (search_flags & SEARCH_CONSTANTS)
for (int i = 0; i < class_doc.constants.size(); i++)
if (_match_string(term, class_doc.constants[i].name))
match.constants.push_back(const_cast<DocData::ConstantDoc *>(&class_doc.constants[i]));
if (search_flags & SEARCH_PROPERTIES)
for (int i = 0; i < class_doc.properties.size(); i++)
if (_match_string(term, class_doc.properties[i].name) || _match_string(term, class_doc.properties[i].getter) || _match_string(term, class_doc.properties[i].setter))
match.properties.push_back(const_cast<DocData::PropertyDoc *>(&class_doc.properties[i]));
if (search_flags & SEARCH_THEME_ITEMS)
for (int i = 0; i < class_doc.theme_properties.size(); i++)
if (_match_string(term, class_doc.theme_properties[i].name))
match.theme_properties.push_back(const_cast<DocData::PropertyDoc *>(&class_doc.theme_properties[i]));
}
}
iterator_doc = iterator_doc->next();
return !iterator_doc;
}
bool EditorHelpSearch::Runner::_phase_class_items_init() {
iterator_match = matches.front();
results_tree->clear();
root_item = results_tree->create_item();
class_items.clear();
return true;
}
bool EditorHelpSearch::Runner::_phase_class_items() {
ClassMatch &match = iterator_match->value();
if (search_flags & SEARCH_SHOW_HIERARCHY) {
if (match.required())
_create_class_hierarchy(match);
} else {
if (match.name)
_create_class_item(root_item, match.doc, false);
}
iterator_match = iterator_match->next();
return !iterator_match;
}
bool EditorHelpSearch::Runner::_phase_member_items_init() {
iterator_match = matches.front();
return true;
}
bool EditorHelpSearch::Runner::_phase_member_items() {
ClassMatch &match = iterator_match->value();
TreeItem *parent = (search_flags & SEARCH_SHOW_HIERARCHY) ? class_items[match.doc->name] : root_item;
for (int i = 0; i < match.methods.size(); i++)
_create_method_item(parent, match.doc, match.methods[i]);
for (int i = 0; i < match.signals.size(); i++)
_create_signal_item(parent, match.doc, match.signals[i]);
for (int i = 0; i < match.constants.size(); i++)
_create_constant_item(parent, match.doc, match.constants[i]);
for (int i = 0; i < match.properties.size(); i++)
_create_property_item(parent, match.doc, match.properties[i]);
for (int i = 0; i < match.theme_properties.size(); i++)
_create_theme_property_item(parent, match.doc, match.theme_properties[i]);
iterator_match = iterator_match->next();
return !iterator_match;
}
bool EditorHelpSearch::Runner::_phase_select_match() {
if (matched_item)
matched_item->select(0);
return true;
}
bool EditorHelpSearch::Runner::_match_string(const String &p_term, const String &p_string) const {
if (search_flags & SEARCH_CASE_SENSITIVE)
return p_term.is_subsequence_of(p_string);
else
return p_term.is_subsequence_ofi(p_string);
}
void EditorHelpSearch::Runner::_match_item(TreeItem *p_item, const String &p_text) {
if (!matched_item) {
if (search_flags & SEARCH_CASE_SENSITIVE) {
if (p_text.casecmp_to(term) == 0)
matched_item = p_item;
} else {
if (p_text.nocasecmp_to(term) == 0)
matched_item = p_item;
}
}
}
TreeItem *EditorHelpSearch::Runner::_create_class_hierarchy(const ClassMatch &p_match) {
if (class_items.has(p_match.doc->name))
return class_items[p_match.doc->name];
// Ensure parent nodes are created first.
TreeItem *parent = root_item;
if (p_match.doc->inherits != "") {
if (class_items.has(p_match.doc->inherits)) {
parent = class_items[p_match.doc->inherits];
} else {
ClassMatch &base_match = matches[p_match.doc->inherits];
parent = _create_class_hierarchy(base_match);
}
}
TreeItem *class_item = _create_class_item(parent, p_match.doc, !p_match.name);
class_items[p_match.doc->name] = class_item;
return class_item;
}
TreeItem *EditorHelpSearch::Runner::_create_class_item(TreeItem *p_parent, const DocData::ClassDoc *p_doc, bool p_gray) {
Ref<Texture> icon = empty_icon;
if (ui_service->has_icon(p_doc->name, "EditorIcons"))
icon = ui_service->get_icon(p_doc->name, "EditorIcons");
else if (ClassDB::class_exists(p_doc->name) && ClassDB::is_parent_class(p_doc->name, "Object"))
icon = ui_service->get_icon("Object", "EditorIcons");
String tooltip = p_doc->brief_description.strip_edges();
TreeItem *item = results_tree->create_item(p_parent);
item->set_icon(0, icon);
item->set_text(0, p_doc->name);
item->set_text(1, TTR("Class"));
item->set_tooltip(0, tooltip);
item->set_tooltip(1, tooltip);
item->set_metadata(0, "class_name:" + p_doc->name);
if (p_gray) {
item->set_custom_color(0, disabled_color);
item->set_custom_color(1, disabled_color);
}
_match_item(item, p_doc->name);
return item;
}
TreeItem *EditorHelpSearch::Runner::_create_method_item(TreeItem *p_parent, const DocData::ClassDoc *p_class_doc, const DocData::MethodDoc *p_doc) {
String tooltip = p_doc->return_type + " " + p_class_doc->name + "." + p_doc->name + "(";
for (int i = 0; i < p_doc->arguments.size(); i++) {
const DocData::ArgumentDoc &arg = p_doc->arguments[i];
tooltip += arg.type + " " + arg.name;
if (arg.default_value != "")
tooltip += " = " + arg.default_value;
if (i < p_doc->arguments.size() - 1)
tooltip += ", ";
}
tooltip += ")";
return _create_member_item(p_parent, p_class_doc->name, "MemberMethod", p_doc->name, TTRC("Method"), "method", tooltip);
}
TreeItem *EditorHelpSearch::Runner::_create_signal_item(TreeItem *p_parent, const DocData::ClassDoc *p_class_doc, const DocData::MethodDoc *p_doc) {
String tooltip = p_doc->return_type + " " + p_class_doc->name + "." + p_doc->name + "(";
for (int i = 0; i < p_doc->arguments.size(); i++) {
const DocData::ArgumentDoc &arg = p_doc->arguments[i];
tooltip += arg.type + " " + arg.name;
if (arg.default_value != "")
tooltip += " = " + arg.default_value;
if (i < p_doc->arguments.size() - 1)
tooltip += ", ";
}
tooltip += ")";
return _create_member_item(p_parent, p_class_doc->name, "MemberSignal", p_doc->name, TTRC("Signal"), "signal", tooltip);
}
TreeItem *EditorHelpSearch::Runner::_create_constant_item(TreeItem *p_parent, const DocData::ClassDoc *p_class_doc, const DocData::ConstantDoc *p_doc) {
String tooltip = p_class_doc->name + "." + p_doc->name;
return _create_member_item(p_parent, p_class_doc->name, "MemberConstant", p_doc->name, TTRC("Constant"), "constant", tooltip);
}
TreeItem *EditorHelpSearch::Runner::_create_property_item(TreeItem *p_parent, const DocData::ClassDoc *p_class_doc, const DocData::PropertyDoc *p_doc) {
String tooltip = p_doc->type + " " + p_class_doc->name + "." + p_doc->name;
tooltip += "\n " + p_class_doc->name + "." + p_doc->setter + "(value) setter";
tooltip += "\n " + p_class_doc->name + "." + p_doc->getter + "() getter";
return _create_member_item(p_parent, p_class_doc->name, "MemberProperty", p_doc->name, TTRC("Property"), "property", tooltip);
}
TreeItem *EditorHelpSearch::Runner::_create_theme_property_item(TreeItem *p_parent, const DocData::ClassDoc *p_class_doc, const DocData::PropertyDoc *p_doc) {
String tooltip = p_doc->type + " " + p_class_doc->name + "." + p_doc->name;
return _create_member_item(p_parent, p_class_doc->name, "MemberTheme", p_doc->name, TTRC("Theme Property"), "theme_item", tooltip);
}
TreeItem *EditorHelpSearch::Runner::_create_member_item(TreeItem *p_parent, const String &p_class_name, const String &p_icon, const String &p_name, const String &p_type, const String &p_metatype, const String &p_tooltip) {
Ref<Texture> icon;
String text;
if (search_flags & SEARCH_SHOW_HIERARCHY) {
icon = ui_service->get_icon(p_icon, "EditorIcons");
text = p_name;
} else {
icon = ui_service->get_icon(p_icon, "EditorIcons");
/*// In flat mode, show the class icon.
if (ui_service->has_icon(p_class_name, "EditorIcons"))
icon = ui_service->get_icon(p_class_name, "EditorIcons");
else if (ClassDB::is_parent_class(p_class_name, "Object"))
icon = ui_service->get_icon("Object", "EditorIcons");*/
text = p_class_name + "." + p_name;
}
TreeItem *item = results_tree->create_item(p_parent);
item->set_icon(0, icon);
item->set_text(0, text);
item->set_text(1, TTRGET(p_type));
item->set_tooltip(0, p_tooltip);
item->set_tooltip(1, p_tooltip);
item->set_metadata(0, "class_" + p_metatype + ":" + p_class_name + ":" + p_name);
_match_item(item, p_name);
return item;
}
bool EditorHelpSearch::Runner::work(uint64_t slot) {
// Return true when the search has been completed, otherwise false.
const uint64_t until = OS::get_singleton()->get_ticks_usec() + slot;
while (!_slice())
if (OS::get_singleton()->get_ticks_usec() > until)
return false;
return true;
}
EditorHelpSearch::Runner::Runner(Control *p_icon_service, Tree *p_results_tree, const String &p_term, int p_search_flags) :
phase(0),
ui_service(p_icon_service),
results_tree(p_results_tree),
term((p_search_flags & SEARCH_CASE_SENSITIVE) == 0 ? p_term.strip_edges().to_lower() : p_term.strip_edges()),
search_flags(p_search_flags),
empty_icon(ui_service->get_icon("ArrowRight", "EditorIcons")),
disabled_color(ui_service->get_color("disabled_font_color", "Editor")) {
}