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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_TRANSLATE_PARTIAL_TRANSLATE_BUBBLE_MODEL_H_
#define CHROME_BROWSER_UI_TRANSLATE_PARTIAL_TRANSLATE_BUBBLE_MODEL_H_
#include <string>
#include "base/observer_list_types.h"
#include "chrome/browser/ui/translate/translate_language_list_model.h"
#include "components/translate/core/common/translate_errors.h"
#include "content/public/browser/web_contents.h"
// The model for the Partial Translate bubble UX. This manages the user's
// manipulation of the bubble and offers the data to show on the bubble.
class PartialTranslateBubbleModel : public TranslateLanguageListModel {
public:
enum ViewState {
// The view state while waiting for translation.
VIEW_STATE_WAITING,
// The view state before translating.
VIEW_STATE_BEFORE_TRANSLATE,
// The view state during translating.
VIEW_STATE_TRANSLATING,
// The view state after translating.
VIEW_STATE_AFTER_TRANSLATE,
// The view state when an error of Translate happens.
VIEW_STATE_ERROR,
// The view state for when the source language combobox is shown. This view
// appears when the user selects "Page is not in {source language}" under
// the options menu.
VIEW_STATE_SOURCE_LANGUAGE,
// The view state for when the target language combobox is shown. This view
// appears when the user selects "Choose another language..." under the
// options menu.
VIEW_STATE_TARGET_LANGUAGE
};
~PartialTranslateBubbleModel() override = default;
// Allows clients to be notified about translate status changes (e.g. for view
// updates).
class Observer : public base::CheckedObserver {
public:
virtual void OnPartialTranslateComplete() = 0;
};
virtual void AddObserver(Observer* obs) = 0;
virtual void RemoveObserver(Observer* obs) = 0;
// Returns the current view state.
virtual ViewState GetViewState() const = 0;
// Transitions the view state.
virtual void SetViewState(ViewState view_state) = 0;
// Sets the source language.
virtual void SetSourceLanguage(const std::string& language_code) = 0;
// Sets the target language.
virtual void SetTargetLanguage(const std::string& language_code) = 0;
// Sets the source (selected) text that will be translated.
virtual void SetSourceText(const std::u16string& text) = 0;
// Returns the source (selected) text that will be translated.
virtual std::u16string GetSourceText() const = 0;
// Sets the target (translated) text.
virtual void SetTargetText(const std::u16string& text) = 0;
// Returns the target (translated) text.
virtual std::u16string GetTargetText() const = 0;
// Shows an error.
virtual void SetError(translate::TranslateErrors error_type) = 0;
virtual translate::TranslateErrors GetError() const = 0;
// TranslateLanguageListModel:
int GetNumberOfSourceLanguages() const override = 0;
int GetNumberOfTargetLanguages() const override = 0;
std::u16string GetSourceLanguageNameAt(int index) const override = 0;
std::u16string GetTargetLanguageNameAt(int index) const override = 0;
int GetSourceLanguageIndex() const override = 0;
void UpdateSourceLanguageIndex(int index) override = 0;
int GetTargetLanguageIndex() const override = 0;
void UpdateTargetLanguageIndex(int index) override = 0;
// Returns the source and target language codes.
virtual std::string GetSourceLanguageCode() const = 0;
virtual std::string GetTargetLanguageCode() const = 0;
// Convenience methods for getting the source and target language names.
std::u16string GetSourceLanguageName() const {
return GetSourceLanguageNameAt(GetSourceLanguageIndex());
}
std::u16string GetTargetLanguageName() const {
return GetTargetLanguageNameAt(GetTargetLanguageIndex());
}
// Starts translating the selected text. Clients will be notified of
// completion via Observer::OnPartialTranslateCompleted.
virtual void Translate(content::WebContents* web_contents) = 0;
// Closes the Partial Translate bubble, then immediately opens the Full Page
// Translate bubble and starts a translation.
virtual void TranslateFullPage(content::WebContents* web_contents) = 0;
// Set whether the selected text is truncated.
virtual void SetSourceTextTruncated(bool is_truncated) = 0;
};
#endif // CHROME_BROWSER_UI_TRANSLATE_PARTIAL_TRANSLATE_BUBBLE_MODEL_H_
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