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-rw-r--r--src/ui/controls/text_control_service.hpp227
1 files changed, 0 insertions, 227 deletions
diff --git a/src/ui/controls/text_control_service.hpp b/src/ui/controls/text_control_service.hpp
deleted file mode 100644
index 626423bf..00000000
--- a/src/ui/controls/text_control_service.hpp
+++ /dev/null
@@ -1,227 +0,0 @@
-#pragma once
-#include "../helper.hpp"
-#include "cru/common/logger.hpp"
-#include "cru/platform/graph/font.hpp"
-#include "cru/platform/graph/painter.hpp"
-#include "cru/platform/native/ui_application.hpp"
-#include "cru/ui/control.hpp"
-#include "cru/ui/render/canvas_render_object.hpp"
-#include "cru/ui/render/text_render_object.hpp"
-#include "cru/ui/ui_event.hpp"
-
-namespace cru::ui::controls {
-constexpr int k_default_caret_blink_duration = 500;
-
-// TControl should inherits `Control` and has following methods:
-// ```
-// render::TextRenderObject* GetTextRenderObject();
-// ```
-template <typename TControl>
-class TextControlService : public Object {
- public:
- TextControlService(TControl* control);
-
- CRU_DELETE_COPY(TextControlService)
- CRU_DELETE_MOVE(TextControlService)
-
- ~TextControlService();
-
- public:
- bool IsEnabled() { return enable_; }
- void SetEnabled(bool enable);
-
- bool IsCaretVisible() { return caret_visible_; }
- void SetCaretVisible(bool visible);
-
- int GetCaretBlinkDuration() { return caret_blink_duration_; }
- void SetCaretBlinkDuration(int milliseconds);
-
- private:
- void AbortSelection();
-
- void SetupCaret();
- void TearDownCaret();
-
- void SetupHandlers();
-
- void MouseMoveHandler(event::MouseEventArgs& args);
- void MouseDownHandler(event::MouseButtonEventArgs& args);
- void MouseUpHandler(event::MouseButtonEventArgs& args);
- void LoseFocusHandler(event::FocusChangeEventArgs& args);
-
- private:
- TControl* control_;
- std::vector<EventRevokerGuard> event_revoker_guards_;
-
- bool enable_ = false;
-
- bool caret_visible_ = false;
- long long caret_timer_id_ = -1;
- int caret_blink_duration_ = k_default_caret_blink_duration;
-
- // nullopt means not selecting
- std::optional<MouseButton> select_down_button_;
-
- // before the char
- int select_start_position_;
-};
-
-template <typename TControl>
-TextControlService<TControl>::TextControlService(TControl* control)
- : control_(control) {}
-
-template <typename TControl>
-TextControlService<TControl>::~TextControlService() {
- const auto application = GetUiApplication();
- // Don't call TearDownCaret, because it use text render object of control,
- // which may be destroyed already.
- application->CancelTimer(this->caret_timer_id_);
-}
-
-template <typename TControl>
-void TextControlService<TControl>::SetEnabled(bool enable) {
- if (enable == this->enable_) return;
- if (enable) {
- this->SetupHandlers();
- if (this->caret_visible_) {
- this->SetupCaret();
- }
- } else {
- this->AbortSelection();
- this->event_revoker_guards_.clear();
- this->TearDownCaret();
- }
-}
-
-template <typename TControl>
-void TextControlService<TControl>::SetCaretVisible(bool visible) {
- if (visible == this->caret_visible_) return;
-
- this->caret_visible_ = visible;
-
- if (this->enable_) {
- if (visible) {
- this->SetupCaret();
- } else {
- this->TearDownCaret();
- }
- }
-}
-
-template <typename TControl>
-void TextControlService<TControl>::SetCaretBlinkDuration(int milliseconds) {
- if (this->caret_blink_duration_ == milliseconds) return;
-
- if (this->enable_ && this->caret_visible_) {
- this->TearDownCaret();
- this->SetupCaret();
- }
-}
-
-template <typename TControl>
-void TextControlService<TControl>::AbortSelection() {
- if (this->select_down_button_.has_value()) {
- this->control_->ReleaseMouse();
- this->select_down_button_ = std::nullopt;
- }
- this->control_->GetTextRenderObject()->SetSelectionRange(std::nullopt);
-}
-
-template <typename TControl>
-void TextControlService<TControl>::SetupCaret() {
- const auto application = GetUiApplication();
-
- // Cancel first anyhow for safety.
- application->CancelTimer(this->caret_timer_id_);
-
- this->control_->GetTextRenderObject()->SetDrawCaret(true);
- this->caret_timer_id_ = application->SetInterval(
- std::chrono::milliseconds(this->caret_blink_duration_),
- [this] { this->control_->GetTextRenderObject()->ToggleDrawCaret(); });
-}
-
-template <typename TControl>
-void TextControlService<TControl>::TearDownCaret() {
- const auto application = GetUiApplication();
- application->CancelTimer(this->caret_timer_id_);
- this->control_->GetTextRenderObject()->SetDrawCaret(false);
-}
-
-template <typename TControl>
-void TextControlService<TControl>::SetupHandlers() {
- Expects(event_revoker_guards_.empty());
- this->event_revoker_guards_.push_back(
- EventRevokerGuard{control_->MouseMoveEvent()->Direct()->AddHandler(
- std::bind(&TextControlService::MouseMoveHandler, this,
- std::placeholders::_1))});
- this->event_revoker_guards_.push_back(
- EventRevokerGuard{control_->MouseDownEvent()->Direct()->AddHandler(
- std::bind(&TextControlService::MouseDownHandler, this,
- std::placeholders::_1))});
- this->event_revoker_guards_.push_back(EventRevokerGuard{
- control_->MouseUpEvent()->Direct()->AddHandler(std::bind(
- &TextControlService::MouseUpHandler, this, std::placeholders::_1))});
- this->event_revoker_guards_.push_back(
- EventRevokerGuard{control_->LoseFocusEvent()->Direct()->AddHandler(
- std::bind(&TextControlService::LoseFocusHandler, this,
- std::placeholders::_1))});
-}
-
-template <typename TControl>
-void TextControlService<TControl>::MouseMoveHandler(
- event::MouseEventArgs& args) {
- if (this->select_down_button_.has_value()) {
- const auto text_render_object = this->control_->GetTextRenderObject();
- const auto result = text_render_object->TextHitTest(
- text_render_object->FromRootToContent(args.GetPoint()));
- const auto position = result.position + (result.trailing ? 1 : 0);
- log::Debug(
- "TextControlService: Text selection changed on mouse move, range: {}, "
- "{}.",
- position, this->select_start_position_);
- this->control_->GetTextRenderObject()->SetSelectionRange(
- TextRange::FromTwoSides(
- static_cast<unsigned>(position),
- static_cast<unsigned>(this->select_start_position_)));
- text_render_object->SetCaretPosition(position);
- }
-}
-
-template <typename TControl>
-void TextControlService<TControl>::MouseDownHandler(
- event::MouseButtonEventArgs& args) {
- if (this->select_down_button_.has_value()) {
- return;
- } else {
- if (!this->control_->CaptureMouse()) return;
- if (!this->control_->RequestFocus()) return;
- const auto text_render_object = this->control_->GetTextRenderObject();
- this->select_down_button_ = args.GetButton();
- const auto result = text_render_object->TextHitTest(
- text_render_object->FromRootToContent(args.GetPoint()));
- const auto position = result.position + (result.trailing ? 1 : 0);
- text_render_object->SetSelectionRange(std::nullopt);
- text_render_object->SetCaretPosition(position);
- this->select_start_position_ = position;
- log::Debug("TextControlService: Begin to select text, start position: {}.",
- position);
- }
-}
-
-template <typename TControl>
-void TextControlService<TControl>::MouseUpHandler(
- event::MouseButtonEventArgs& args) {
- if (this->select_down_button_.has_value() &&
- this->select_down_button_.value() == args.GetButton()) {
- this->control_->ReleaseMouse();
- this->select_down_button_ = std::nullopt;
- log::Debug("TextControlService: End selecting text.");
- }
-}
-
-template <typename TControl>
-void TextControlService<TControl>::LoseFocusHandler(
- event::FocusChangeEventArgs& args) {
- if (!args.IsWindow()) this->AbortSelection();
-}
-} // namespace cru::ui::controls
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