Start on file chooser, page stack

14 files changed, 259 insertions, 42 deletions

diff --git a/include/GsrInfo.hpp b/include/GsrInfo.hpp
index 483b40f..d90d72f 100644
--- a/include/GsrInfo.hpp
+++ b/include/GsrInfo.hpp
@@ -58,6 +58,7 @@ namespace gsr {
 
     enum class GsrInfoExitStatus {
         OK,
+        BROKEN_DRIVERS,
         FAILED_TO_RUN_COMMAND,
         OPENGL_FAILED,
         NO_DRM_CARD
diff --git a/include/SafeVector.hpp b/include/SafeVector.hpp
new file mode 100644
index 0000000..cea9cb9
--- /dev/null
+++ b/include/SafeVector.hpp
@@ -0,0 +1,127 @@
+#pragma once
+
+#include <vector>
+#include <memory>
+#include <functional>
+
+// A vector that can be modified while iterating
+template <typename T>
+class SafeVector {
+public:
+    using PointerType = typename std::pointer_traits<T>::element_type*;
+
+    void push_back(T item) {
+        data.push_back(std::move(item));
+    }
+
+    // Safe to call when vector is empty
+    void pop_back() {
+        if(!data.empty())
+            data.pop_back();
+    }
+
+    // Might not remove the data immediately if inside for_each loop.
+    // In that case the item is remove at the end of the loop.
+    void remove(PointerType item_to_remove) {
+        if(for_each_depth == 0)
+            remove_item(item_to_remove);
+        else
+            remove_queue.push_back(item_to_remove);
+    }
+
+    // Safe to call when vector is empty, in which case it returns nullptr
+    T* back() {
+        if(data.empty())
+            return nullptr;
+        else
+            return &data.back();
+    }
+
+    void clear() {
+        data.clear();
+        remove_queue.clear();
+    }
+
+    // Return true from |callback| to continue. This function returns false if |callback| returned false
+    bool for_each(std::function<bool(T &t)> callback) {
+        bool result = true;
+        ++for_each_depth;
+
+        for(size_t i = 0; i < data.size(); ++i) {
+            result = callback(data[i]);
+            if(!result)
+                break;
+        }
+
+        --for_each_depth;
+        if(for_each_depth == 0) {
+            for(PointerType item_to_remove : remove_queue) {
+                remove_item(item_to_remove);
+            }
+            remove_queue.clear();
+        }
+
+        return result;
+    }
+
+    // Return true from |callback| to continue. This function returns false if |callback| returned false
+    bool for_each_reverse(std::function<bool(T &t)> callback) {
+        bool result = true;
+        ++for_each_depth;
+
+        int i = (int)data.size() - 1;
+        while(true) {
+            // pop_back can be called while iterating so handle that case
+            if(i >= (int)data.size())
+                i = (int)data.size() - 1;
+
+            if(i < 0)
+                break;
+
+            result = callback(data[i]);
+            if(!result)
+                break;
+
+            --i;
+        }
+
+        --for_each_depth;
+        if(for_each_depth == 0) {
+            for(PointerType item_to_remove : remove_queue) {
+                remove_item(item_to_remove);
+            }
+            remove_queue.clear();
+        }
+
+        return result;
+    }
+
+    T& operator[](size_t index) {
+        return data[index];
+    }
+
+    const T& operator[](size_t index) const {
+        return data[index];
+    }
+
+    size_t size() const {
+        return data.size();
+    }
+
+    bool empty() const {
+        return data.empty();
+    }
+private:
+    void remove_item(PointerType item_to_remove) {
+        for(auto it = data.begin(), end = data.end(); it != end; ++it) {
+            if(&*(*it) == item_to_remove) {
+                data.erase(it);
+                return;
+            }
+        }
+    }
+private:
+    std::vector<T> data;
+    std::vector<PointerType> remove_queue;
+    int for_each_depth = 0;
+};
\ No newline at end of file
diff --git a/include/Theme.hpp b/include/Theme.hpp
index cc321bd..5f228af 100644
--- a/include/Theme.hpp
+++ b/include/Theme.hpp
@@ -30,9 +30,12 @@ namespace gsr {
 
         mgl::Texture combobox_arrow_texture;
         mgl::Texture settings_texture;
+        mgl::Texture folder_texture;
+
+        double double_click_timeout_seconds = 0.4;
     };
 
-    bool init_theme(const gsr::GsrInfo &gsr_info, mgl::vec2i window_size, const std::string &resources_path);
+    bool init_theme(const GsrInfo &gsr_info, mgl::vec2i window_size, const std::string &resources_path);
     void deinit_theme();
     Theme& get_theme();
 }
\ No newline at end of file
diff --git a/include/Utils.hpp b/include/Utils.hpp
index f917834..6943e5e 100644
--- a/include/Utils.hpp
+++ b/include/Utils.hpp
@@ -1,7 +1,6 @@
 #pragma once
 
 #include <functional>
-#include <optional>
 #include <string_view>
 #include <map>
 #include <string>
@@ -16,9 +15,6 @@ namespace gsr {
 
     void string_split_char(std::string_view str, char delimiter, StringSplitCallback callback_func);
 
-    // key value separated by one space
-    std::optional<KeyValue> parse_key_value(std::string_view line);
-
     std::string get_home_dir();
     std::string get_config_dir();
 
diff --git a/include/gui/Button.hpp b/include/gui/Button.hpp
index f4c44ef..a4dcca1 100644
--- a/include/gui/Button.hpp
+++ b/include/gui/Button.hpp
@@ -21,6 +21,8 @@ namespace gsr {
         mgl::vec2f get_size() override;
         void set_border_scale(float scale);
 
+        const std::string& get_text() const;
+
         std::function<void()> on_click;
     private:
         mgl::vec2f size;
diff --git a/include/gui/ComboBox.hpp b/include/gui/ComboBox.hpp
index e501132..96489e6 100644
--- a/include/gui/ComboBox.hpp
+++ b/include/gui/ComboBox.hpp
@@ -19,7 +19,7 @@ namespace gsr {
         void draw(mgl::Window &window, mgl::vec2f offset) override;
 
         void add_item(const std::string &text, const std::string &id);
-        void set_selected_item(const std::string &id, bool trigger_event = true);
+        void set_selected_item(const std::string &id, bool trigger_event = true, bool trigger_event_even_if_selection_not_changed = true);
         const std::string& get_selected_id() const;
 
         mgl::vec2f get_size() override;
diff --git a/include/gui/FileChooser.hpp b/include/gui/FileChooser.hpp
new file mode 100644
index 0000000..b8ea23e
--- /dev/null
+++ b/include/gui/FileChooser.hpp
@@ -0,0 +1,35 @@
+#pragma once
+
+#include "Widget.hpp"
+#include <functional>
+#include <vector>
+
+#include <mglpp/graphics/Text.hpp>
+#include <mglpp/system/Clock.hpp>
+
+// This currently only supports displaying folders
+// TODO: Support files as well
+
+namespace gsr {
+    class FileChooser : public Widget {
+    public:
+        FileChooser(const char *start_directory, mgl::vec2f content_size);
+        FileChooser(const FileChooser&) = delete;
+        FileChooser& operator=(const FileChooser&) = delete;
+
+        bool on_event(mgl::Event &event, mgl::Window &window, mgl::vec2f offset) override;
+        void draw(mgl::Window &window, mgl::vec2f offset) override;
+
+        mgl::vec2f get_size() override;
+
+        void set_current_directory(const char *directory);
+    private:
+        mgl::vec2f content_size;
+        mgl::Text current_directory_text;
+        int mouse_over_item = -1;
+        int selected_item = -1;
+        std::vector<mgl::Text> folders;
+        mgl::Clock double_click_timer;
+        int times_clicked_within_timer = 0;
+    };
+}
\ No newline at end of file
diff --git a/include/gui/GsrPage.hpp b/include/gui/GsrPage.hpp
new file mode 100644
index 0000000..9f38382
--- /dev/null
+++ b/include/gui/GsrPage.hpp
@@ -0,0 +1,39 @@
+#pragma once
+
+#include "Page.hpp"
+#include "ScrollablePage.hpp"
+#include "Button.hpp"
+
+#include <mglpp/graphics/Text.hpp>
+
+namespace gsr {
+    class GsrPage : public Page {
+    public:
+        GsrPage();
+        GsrPage(const GsrPage&) = delete;
+        GsrPage& operator=(const GsrPage&) = delete;
+
+        bool on_event(mgl::Event &event, mgl::Window &window, mgl::vec2f offset) override;
+        void draw(mgl::Window &window, mgl::vec2f offset) override;
+
+        mgl::vec2f get_size() override;
+        mgl::vec2f get_inner_size() override;
+
+        void add_widget(std::unique_ptr<Widget> widget) override;
+
+        void set_margins(float top, float bottom, float left, float right);
+        void set_on_back_button_click(std::function<void()> on_click_handler);
+    private:
+        void draw_page_label(mgl::Window &window, mgl::vec2f body_pos);
+        float get_border_size() const;
+        float get_horizontal_spacing() const;
+    private:
+        float margin_top_scale = 0.0f;
+        float margin_bottom_scale = 0.0f;
+        float margin_left_scale = 0.0f;
+        float margin_right_scale = 0.0f;
+        ScrollablePage scrollable_body;
+        Button back_button;
+        mgl::Text label_text;
+    };
+}
\ No newline at end of file
diff --git a/include/gui/List.hpp b/include/gui/List.hpp
index 241a75c..55a5b84 100644
--- a/include/gui/List.hpp
+++ b/include/gui/List.hpp
@@ -1,7 +1,7 @@
 #pragma once
 
 #include "Widget.hpp"
-#include <vector>
+#include "../SafeVector.hpp"
 #include <memory>
 
 namespace gsr {
@@ -27,28 +27,20 @@ namespace gsr {
 
         //void remove_child_widget(Widget *widget) override;
 
-        // Might not take effect immediately but at the next draw iteration if inside an event loop
         void add_widget(std::unique_ptr<Widget> widget);
-        // Might not take effect immediately but at the next draw iteration if inside an event loop
         void remove_widget(Widget *widget);
-        // Excludes widgets from queue
-        const std::vector<std::unique_ptr<Widget>>& get_child_widgets() const;
+        // Return true from |callback| to continue
+        void for_each_child_widget(std::function<bool(std::unique_ptr<Widget> &widget)> callback);
         // Returns nullptr if index is invalid
         Widget* get_child_widget_by_index(size_t index) const;
 
         void set_spacing(float spacing);
 
         mgl::vec2f get_size() override;
-    private:
-        void update();
-        void remove_widget_immediate(Widget *widget);
     protected:
-        std::vector<std::unique_ptr<Widget>> widgets;
-        std::vector<std::unique_ptr<Widget>> add_queue;
-        std::vector<Widget*> remove_queue;
+        SafeVector<std::unique_ptr<Widget>> widgets;
         Orientation orientation;
         Alignment content_alignment;
-        bool inside_event_handler = false;
         float spacing_scale = 0.009f;
     };
 }
\ No newline at end of file
diff --git a/include/gui/Page.hpp b/include/gui/Page.hpp
index 4c63702..a8fa515 100644
--- a/include/gui/Page.hpp
+++ b/include/gui/Page.hpp
@@ -17,7 +17,7 @@ namespace gsr {
 
         //void remove_child_widget(Widget *widget) override;
 
-        void add_widget(std::unique_ptr<Widget> widget);
+        virtual void add_widget(std::unique_ptr<Widget> widget);
     protected:
         std::vector<std::unique_ptr<Widget>> widgets;
     };
diff --git a/include/gui/PageStack.hpp b/include/gui/PageStack.hpp
new file mode 100644
index 0000000..cf42b7d
--- /dev/null
+++ b/include/gui/PageStack.hpp
@@ -0,0 +1,29 @@
+#pragma once
+
+#include "Widget.hpp"
+#include "Page.hpp"
+#include "../SafeVector.hpp"
+#include <memory>
+
+namespace gsr {
+    class PageStack : public Widget {
+    public:
+        PageStack();
+        PageStack(const PageStack&) = delete;
+        PageStack& operator=(const PageStack&) = delete;
+
+        bool on_event(mgl::Event &event, mgl::Window &window, mgl::vec2f offset) override;
+        void draw(mgl::Window &window, mgl::vec2f offset) override;
+
+        mgl::vec2f get_size() override;
+
+        void push(std::unique_ptr<Page> page);
+        // This can be used even if the stack is empty
+        void pop();
+        // This can be used even if the stack is empty
+        Page* top();
+        bool empty() const;
+    private:
+        SafeVector<std::unique_ptr<Page>> widget_stack;
+    };
+}
\ No newline at end of file
diff --git a/include/gui/RadioButton.hpp b/include/gui/RadioButton.hpp
index 7839c68..69339db 100644
--- a/include/gui/RadioButton.hpp
+++ b/include/gui/RadioButton.hpp
@@ -17,7 +17,7 @@ namespace gsr {
         void draw(mgl::Window &window, mgl::vec2f offset) override;
 
         void add_item(const std::string &text, const std::string &id);
-        void set_selected_item(const std::string &id, bool trigger_event = true);
+        void set_selected_item(const std::string &id, bool trigger_event = true, bool trigger_event_even_if_selection_not_changed = true);
         const std::string get_selected_id() const;
 
         mgl::vec2f get_size() override;
diff --git a/include/gui/ScrollablePage.hpp b/include/gui/ScrollablePage.hpp
index 60d719f..5048627 100644
--- a/include/gui/ScrollablePage.hpp
+++ b/include/gui/ScrollablePage.hpp
@@ -1,9 +1,11 @@
 #pragma once
 
-#include "Page.hpp"
+#include "Widget.hpp"
+#include <memory>
+#include <vector>
 
 namespace gsr {
-    class ScrollablePage : public Page {
+    class ScrollablePage : public Widget {
     public:
         ScrollablePage(mgl::vec2f size);
         ScrollablePage(const ScrollablePage&) = delete;
@@ -13,16 +15,11 @@ namespace gsr {
         void draw(mgl::Window &window, mgl::vec2f offset) override;
 
         mgl::vec2f get_size() override;
-        mgl::vec2f get_inner_size() override;
+        void set_size(mgl::vec2f size);
 
-        void set_margins(float top, float bottom, float left, float right);
-    private:
-        float get_border_size() const;
+        void add_widget(std::unique_ptr<Widget> widget);
     private:
         mgl::vec2f size;
-        float margin_top_scale = 0.0f;
-        float margin_bottom_scale = 0.0f;
-        float margin_left_scale = 0.0f;
-        float margin_right_scale = 0.0f;
+        std::vector<std::unique_ptr<Widget>> widgets;
     };
 }
\ No newline at end of file
diff --git a/include/gui/SettingsPage.hpp b/include/gui/SettingsPage.hpp
index 1b301bf..1ad4c67 100644
--- a/include/gui/SettingsPage.hpp
+++ b/include/gui/SettingsPage.hpp
@@ -7,14 +7,12 @@
 #include "RadioButton.hpp"
 #include "CheckBox.hpp"
 #include "Button.hpp"
-#include "CustomRendererWidget.hpp"
 #include "../GsrInfo.hpp"
 #include "../Config.hpp"
 
-#include <functional>
-
 namespace gsr {
-    class ScrollablePage;
+    class GsrPage;
+    class PageStack;
 
     class SettingsPage : public StaticPage {
     public:
@@ -24,17 +22,13 @@ namespace gsr {
             STREAM
         };
 
-        SettingsPage(Type type, const GsrInfo &gsr_info, const std::vector<AudioDevice> &audio_devices, std::optional<Config> &config);
+        SettingsPage(Type type, const GsrInfo &gsr_info, const std::vector<AudioDevice> &audio_devices, std::optional<Config> &config, PageStack *page_stack);
         SettingsPage(const SettingsPage&) = delete;
         SettingsPage& operator=(const SettingsPage&) = delete;
 
         void save();
         void on_navigate_away_from_page() override;
-
-        std::function<void()> on_back_button_handler;
     private:
-        std::unique_ptr<Button> create_back_button();
-        std::unique_ptr<CustomRendererWidget> create_settings_icon();
         std::unique_ptr<RadioButton> create_view_radio_button();
         std::unique_ptr<ComboBox> create_record_area_box(const GsrInfo &gsr_info);
         std::unique_ptr<List> create_record_area(const GsrInfo &gsr_info);
@@ -69,7 +63,7 @@ namespace gsr {
         std::unique_ptr<List> create_framerate_mode();
         std::unique_ptr<List> create_framerate_section();
         std::unique_ptr<List> create_settings(const GsrInfo &gsr_info, const std::vector<AudioDevice> &audio_devices);
-        void add_widgets(const gsr::GsrInfo &gsr_info, const std::vector<gsr::AudioDevice> &audio_devices);
+        void add_widgets(const GsrInfo &gsr_info, const std::vector<AudioDevice> &audio_devices);
 
         void add_page_specific_widgets();
 
@@ -97,7 +91,7 @@ namespace gsr {
         Type type;
         std::optional<Config> &config;
 
-        ScrollablePage *content_page_ptr = nullptr;
+        GsrPage *content_page_ptr = nullptr;
         List *settings_list_ptr = nullptr;
         List *select_window_list_ptr = nullptr;
         List *area_size_list_ptr = nullptr;
@@ -131,12 +125,14 @@ namespace gsr {
         CheckBox *show_video_saved_notification_checkbox_ptr = nullptr;
         CheckBox *show_streaming_started_notification_checkbox_ptr = nullptr;
         CheckBox *show_streaming_stopped_notification_checkbox_ptr = nullptr;
-        Entry *save_directory_entry_ptr = nullptr;
+        Button *save_directory_button_ptr = nullptr;
         Entry *twitch_stream_key_entry_ptr = nullptr;
         Entry *youtube_stream_key_entry_ptr = nullptr;
         Entry *stream_url_entry_ptr = nullptr;
         Entry *replay_time_entry_ptr = nullptr;
 
+        PageStack *page_stack = nullptr;
+
         mgl::Text settings_title_text;
     };
 }
\ No newline at end of file